402 results about "Line shaft" patented technology

The invention belongs to the field of multi-motor speed cooperation control. Synchronous operation among various subordinate shafts is coordinated; the dynamic relationship among various shafts is also really reflected; meanwhile, the robustness of a system is further improved; and load torque measurement values are fed forwards to current rings of subordinate shaft motors. According to the technical scheme, by a load observer-based virtual line shaft control method or multiple permanent magnet synchronous motors, the system comprises n permanent magnet synchronous motors and a virtual motor; DC voltage and phase current output by a rectifier bridge are collected by an AD conversion interface in a microprocessor; a rotor angle position thetai of an ith permanent magnet synchronous motor is detected through a rotor position sensor, and meanwhile, a rotating speed omegai of the ith permanent magnet synchronous motor is calculated; alpha-axis reference voltage and beta-axis reference voltage are generated; and finally a six-pulse drive control signal of an inverter is output by employing a voltage space vector pulse width modulation SVPWM method. The load observer-based virtual line shaft control method is mainly applied to the occasion of multi-motor speed cooperation control.

The automobile braking ABS test table mainly a includes drive motor and its control mechanism, a main shaft, an inertial flywheel and its hanging mechanism, a skid platform, a gear box and gimbal, a roller and guide rail, a tested wheel-roller normal pressure loading unit and a regulating mechanism, a tested wheel-roller side pressure loading unit and a regulating mechanism, a wheel cylinder braking pressure switching mechanism, a speed and force sensing unit, a hydraulic pump station, a temperature regulator, an emergency brake, a control cabinet, a data recording, a processing, displaying and printing unit and frame and a protecting hood. During ABS test, the main driving motor drives the driving box, the gimbal and the driving shaft through the main shaft to drive the roller, the roller drives the wheels and the main shaft also drives the flywheel. In conventional brake performance test, the main driving motor drives the flywheel and the brake only via the main shaft.

A modular rolling mill comprises a plurality of separate rolling units arranged along a mill pass line. Each rolling unit includes at least two pairs of work rolls defining oval and round roll passes and carried on roll shafts that are staggered 90° with respect to each other. The rolling units contain intermediate drive trains configured to connect the roll shafts to parallel input shafts projecting to a first side of the pass line from the respective rolling units. A single driven line shaft is parallel to and on the first side of the pass line. Output shafts are mechanically coupled to the line shaft by bevel gear sets. The output shafts project laterally from the line shaft towards the pass line and are connected by separable couplings to the input shafts of the rolling units.

The invention provides an impact test table based on the axial loading of a wind power high-speed shaft bearing. The impact test table comprises a base table, a driving motor, a fly wheel, a clutch, a rotating main shaft, a main test bearing, an axial loading device and a magnetic power brake, wherein the driving motor is arranged at one end of the base table, an output shaft of the driving motor is connected with one end of a center shaft of the fly wheel, the clutch is arranged on the base table through a support frame, the other end of the center shaft of the fly wheel is connected with the input end of the clutch, the output end of the clutch is connected with one end of the rotating main shaft, the magnetic power brake is arranged at the other end of the base table, the other end of the rotating main shaft is connected with a brake shaft of the magnetic powder brake, and the main test bearing is arranged on the rotating main shaft and is fixedly arranged on the base table. The invention provides the impact test table based on the axial loading of the wind power high-speed shaft bearing. The impact test table has the advantages that the rotating impact load can be effectively simulated, the axial loading of the bearing is convenient and fast, and the cost is reduced.

The invention discloses and relates to a cutting force automatic control main shaft reliability test device and a test method, and belongs to the technical field of mechanical test equipment and method. The problems that in the prior art, the real work conditions of a main shaft cannot be accurately and dynamically simulated; the control mode is complicated; the equipment manufacturing cost is high are solved. The main shaft reliability test device consists of a main shaft installing table, a cutting force automatic control device, a cutting torque loading device, state monitoring equipment and auxiliary equipment, wherein the cutting force automatic control device consists of a cutting force magnitude loading mechanism, a cutting force direction regulating mechanism, an electromagnetic locking mechanism and a loading device support frame. The test method of the main shaft reliability test device comprises the following steps: 1, obtaining and processing the load and state parameters; 2, performing detection and debugging on the cutting force automatic control main shaft reliability test device before the work; 3, the cutting force automatic control main shaft reliability test device simulates the work condition loading experiments.

The invention discloses a kind of piston engine without crank, a power converting mechanism made up of mobile gear, gear rack connected to the piston and the driving gear fixed on the straight output main shaft replaces traditional crank link mechanism, and it overcomes the deficiency of current crank-less engine; the mobile gear can move between the connection position and the non-connection position, thus the dynamic force device between the gear rack and the driving gear can be in on / off state; in the exposure distance of the piston, it can transmit force to the main shaft through the force transmitting chain; the back movement of piston doesn't affect the movement of the output main shaft; along with the joining movement of mobile gear, by mating with the other assistant system, the reciprocate straight movement can be changed into the power output with continuous single direction rotation of main shaft. The converter can be used in gasline, diesel, gas inner combustion machine.

The invention provides a dual-clutch series-parallel hybrid power driving device and a control method thereof, belonging to the technical field of automobiles. The problems of complex structure and difficulty in upgrade of a platform of the prior art can be solved by the invention. The device comprises wheel left and right semi-axes on a vehicle chassis and a storage battery, wherein the wheel left and right semi-axes are connected through a differential, a power generation electric motor and an engine are arranged on the other side, an output shaft of the engine is connected with an engine shaft, a first clutch for controlling the engagement and disengagement of the output shaft of the engine and the engine shaft is arranged on the engine shaft, the engine shaft and the power generation electric motor are connected through a first-stage gear transmission mechanism, the engine shaft and the differential are connected through a second-stage gear transmission mechanism, a second clutch is arranged in the second-stage gear transmission mechanism, an electric motor is arranged on the other side of the wheel left and right semi-axes, the electric motor and the differential are connected through another second-stage gear transmission mechanism, and both the power generation electric motor and the electric motor are connected with the storage battery. The device has the advantages of compact structure, effectivity, energy conservation and the like.

An accessory gear box driveshaft in a turbojet engine with intermediate casing, designed to be mounted in a radial arm of the intermediate casing is disclosed. The shaft is mechanically connected, at a first end, to a an engine shaft of the turbojet engine, and is mechanically connected, at a second end, to a gear box. The shaft includes a bevel gear between the two ends, to provide mechanical transmission to an additional accessory. This shaft is notable in that, together with the gear, it is contained in a case forming an oil circuit sealed against the arm. The accessory includes a drive shaft collaborating with the gear of the transmission shaft and forming a modular assembly therewith.

The invention relates to a spiral flow shaft type energy dissipation drop well, which comprises an inner shaft and an outer shaft, wherein a water inlet pipe is connected to the upper part of the outer shaft and a water outlet pipe is connected to the lower part of the outer shaft; an annular spiral flow space is surrounded by the inner shaft and the outer shaft; and a plurality of partition boards are distributed inside the annular spiral flow space from top to bottom in a spiral mode, so that a spiral flow drainage passage is formed. By virtue of the partition boards which are distributed in a spiral mode as well as the walls of the outer shaft and the inner shaft, the flow direction of water is changed so as to reduce the flow rate of the water, so that the purposes of energy dissipation and water dropping are achieved; problems, which are solved in plane, are solved in a vertical direction, so that the occupied area of project is reduced. The drop well provided by the invention is not limited by a drop difference and the diameter of the water inlet pipe; and the drop well is broad in application scope, and is applicable to rainwater and sewage pipeline network works in such construction industries as municipal administration, railway, petroleum, water conservancy and the like.

The invention belongs to the field of automatic control, and relates to a double-screw synchronization control method based on a virtual main shaft. The method comprises the steps: achieving the synchronous operation of a radar array plane drive screw through the synchronization control mode of the virtual main shaft, enabling a position instruction to serve as the virtual main shaft, taking two servo motors to serve as driven shafts, and enabling the two motors to operate under the drive of the main shaft. The method achieves the quick and high-precision setting-up requirements of a phased array radar plane, solves problems in the screw synchronization drive that a lagged driven shaft, the bigger position or force moment difference of two screws and the excessively quick adjustment cause the system oscillation and poorer synchronization reliability. The method is good in application prospect in the field.

The invention discloses a mechanical seal testing device for an aviation pump. The mechanical seal testing device comprises a test bed base; a shaft tail loading force device, a testing cavity, a lubricating device, a torque sensor and a servo motor which are sequentially connected are arranged on the test bed base; the end part of a main shaft is connected to the servo motor; the other end of themain shaft penetrates through the torque sensor, the lubricating device and the testing cavity in sequence; the shaft tail loading force device provides loading force for the end part of the main shaft; the lubricating device provides lubrication for the rotation of the main shaft; the torque sensor detects the torque of the main shaft; the servo motor controls the rotation speed of the main shaft; a tension and pressure sensor and a connecting rod are further arranged between the shaft tail loading force device and the testing cavity; the end part of the tension and pressure sensor is connected to the shaft tail loading force device; the other end of the tension and pressure sensor is connected to the end part of the connecting rod; and the other end of the connecting rod is connected tothe testing cavity.

The invention discloses a comprehensive offline test platform of a generator rotor insulation measurement device. The comprehensive offline test platform of the generator rotor insulation measurement device comprises a rotary experimental platform and control console connected with the rotary experimental platform, wherein the rotary experimental platform comprises a motor, a sliding ring shaft, a sliding ring and a first carbon brush which are installed on the rotary experimental platform. The sliding ring shaft is connected to a driving shaft of the motor, and the sliding ring sleeves the sliding ring shaft and rotates with the sliding ring shaft. During testing, the motor can reach to a rated rotation speed, and the first carbon brush is lifted to be in contact with the sliding ring and output an electric signal. The control console comprises a motor power distribution and control loop, a carbon brush power distribution and control loop and an oscilloscope. During testing, the oscilloscope is used for recording waves, and the situation that waveforms of input electrical signals are free of clutters is confirmed. Accordingly, when the motor reaches to the rated rotation speed, the first carbon brush and the sliding ring are always in contact, and the first carbon brush does not bounce on the surface of the sliding ring. A test proves that the first carbon brush cannot bounce on the surface of the sliding ring, and accordingly the problem of ground protection false alarming of a generator rotor can be solved.

The invention relates to a bidirectional cement-soil mixing pile machine, which comprises a power source, a transmission mechanism, a bit body and a frame, and is characterized in that the power source comprises a single motor and a reducer which are in mechanical connection in turn, a motor flange, a coupling and a grout injection connector, and the single motor and the reducer are hoisted on the frame; the transmission mechanism comprises a gear box, a main shaft vertically arranged in the gear box, a half shaft sleeved on the lower part of the main shaft, an external sleeve shaft sleeved outside of the half shaft, and a left intermediate shaft and a right intermediate shaft parallel to the main shaft; and the bit body comprises an inner shaft, an inner bit and an outer bit. The pile machine only adopts one motor to drive, uses structural characteristics of gear transmission and kinematic principle, realizes the diversion and mergence of transmission speed and routes and the change of rotation direction, and realizes the bidirectional rotation cement-soil mixing function.

The invention relates to a device for measuring a clearance of a differential mechanism, in particular to a chip selecting machine for measuring a half axle gear clearance of the differential mechanism. Two sides in a body are provided with a first cylinder and a second cylinder respectively; output shafts of the two cylinders are connected with a first reciprocating sliding support and a second reciprocating sliding support respectively; a first shaft sleeve and a second shaft sleeve capable of reciprocating oppositely are arranged in the two sliding supports; a spline shaft and a driven shaft are arranged in the two shaft sleeves respectively; a driving device is connected to the spline shaft; the two sliding supports are provided with a third cylinder and a fourth cylinder for driving the two shaft sleeves, the spline shaft and the driven shaft to reciprocate; a seventh cylinder and an eighth cylinder are arranged on the lower rear side of the differential mechanism between the spline shaft and the driven shaft, and the output shafts of the two cylinders are connected with reciprocating measuring heads; a fifth cylinder and a sixth cylinder are arranged in the body and are provided with a clamping paw of a clamping differential mechanism respectively; and the two sides of the body are provided with a linear displacement sensor respectively. The chip selecting machine has the advantages of accurate measurement, high degree of automation, low running cost, convenient operation and the like.

Disclosed is a fatigue testing machine used for a small module wheel gear symmetry fatigue test. The invention relates to a wheel gear fatigue testing machine. The problems that only one experimental data can be obtained by the existing testing machine by taking an A test method to test the small module wheel gear fatigue feature, vast experiment information is wasted, the experiment efficiency is low and the experiment cost is high are solved. A main shaft of a servo motor, an input shaft of moment of force sensor, an output shaft of the moment of force sensor and a connecting shaft are arranged with a wheel gear assembling shaft close to one side of the connecting shaft in a coaxial mode. One end of the connecting shaft is connected with the output shaft of the moment of force sensor in a coaxial mode through a coupler. The other end of the connecting shaft is connected with the wheel gear assembling shaft close to one side of the connecting shaft in a coaxial mode through the coupler. Two to-be tested small module wheel gears are respectively installed on two wheel gear assembling shafts and the two small module wheel gears are arranged in a mutual meshing mode. The fatigue testing machine used for the small module wheel gear symmetry fatigue test is used for testing the fatigue feature of the small module wheel gear.

The invention discloses an expander rotor used for throttling high pressure liquid, which comprises an impeller and a main shaft. The expander rotor is characterized in that the rotor adopts an impeller cantilever horizontal type structure; one end of the main shaft is an impeller end, and the other end thereof is a gearbox end; the main shaft impeller end adopts an axis tripod connection method and is connected with the impeller to generate shaft work, and the main shaft gearbox end is connected with the gearbox through a high speed transmission mechanism to realize the transmission of the shaft work; an axial force balancing mechanism are arranged at the position of the shaft shoulders at both ends of the main shaft; a bearing mechanism is arranged on the shaft neck at the outer side of the shaft shoulders at the both ends of the main shaft. The rotor can solve the hard requirements of the prior liquid expander for the media flow quantity and the braking process of the generator, common generators, pumps or blower fans can be adopted to perform braking, the rotor is suitable for the media pressure reduction with arbitrary flow quantities, and both the energy conservation and the consumption reduction effects are obvious.

The invention discloses an accurate off-line shaft fixing device and an accurate off-line shaft fixing method of a wedge-shaped lens disassembly and assembly unit, and relates to an off-line shaft fixing device and an off-line shaft fixing method, aiming at solving the problem that the conventional off-line shaft fixing device and method cannot realize large-batch and high-accuracy shaft fixation. According to the device, a wedge-shaped lens optical machine assembly frame is arranged on the middle part of an optical platform, two auto-collimation pedestals are arranged on the two sides of the wedge-shaped lens optical machine assembly frame respectively, and a wedge-shaped lens substitute is fixedly arranged on the wedge-shaped lens optical machine assembly frame. The method comprises the following steps: 1, mounting the wedge-shaped lens substitute; 2, adjusting auto-collimators; 3, taking the wedge-shaped lens substitute off; 4, performing off-line mounting of the wedge-shaped lens on-line disassembly and assembly unit; 5, performing large-batch optical machine off-line assembly and check of wedge-shaped lenses; 6, performing off-line shaft fixation of the wedge-shaped lenses; 7, performing off-line shaft fixation check by an off-line assembly and check platform; 8, finishing shaft fixation check; and 9, finishing accurate off-line shaft fixation. The accurate off-line shaft fixing device and method are used for accurate off-line shaft fixation of the wedge-shaped lens disassembly and assembly unit.

The invention relates to a vertical type rotating cabinet provided with a chain transmission center distance adjusting device. The main structure of the vertical type rotating cabinet includes (shown in an attached drawing) a line shaft (9), a screw shaft (4), a frame type rack (3), a base (1), a transmission chain guide rail (7), a container hopper (6) and a balance guide rail (5). The chain tension device and the line shaft are combined to be an assembly whole, when a chain is loosened and elongated, four fastening screws of a bearing seat are appropriately loosened, an adjusting device is adjusted, under the guidance of a linear guide groove arranged between the bearing seat and the rack, the bearing seat of the line shaft upwards moves, and the chain obtains an appropriate degree of tightness. A guide rod on the bearing seat can guarantee that a reasonable gap can be always maintained between the bearing seat and the rack during an adjustment. The transmission chain guide rail (7) is installed on the rack of the vertical type rotating cabinet to guide the chain to perform a stable rotating operation. The vertical type rotating cabinet has the advantages that the chain transmission is stable and reliable, the structure is simple and reasonable, the degree of tightness of the chain is convenient to adjust, the transmission efficiency is high, and the like.

An electronic line shaft includes a motor drive and a processing unit operable to execute a wizard for configuring the motor drive. The wizard is operable to receive mechanical characteristic data associated with the motor drive, determine a noise parameter based on the mechanical characteristic data, and determine at least one control parameter of the motor drive based on the noise parameter.

An improved electronic line shaft provides for a predictor sending predicted position and / or velocity values to servant drives that may be later strobed in by high speed low-latency strobe signals to eliminate network jitter and delay. The predictor may be implemented as a phase lock loop, providing filtering of a master encoder signal together with flexible electronic gear ratio adjustments and other desired control refinements.

The invention discloses a method for correcting a load jacking experiment of a marine shaft system, which comprises the following implementation steps of: placing a jack below an optimum point of the shaft system shown in a diagram; placing a dial indicator above the shaft system, wherein a measuring rod of the dial indicator is pressed on the top surface of the shaft system; starting a manual pump, and recording lifting power data of the jack until the jack is jacked to be with the data being the data of the shaft system in a total backlash of bearings; recording pressure data in a pump body as soon as the jack is descended by 0.05mm until the indication of the dial indicator is zero; organizing recorded experimental data, drawing load curve graphs of the ascending and the descending of the jack, and calculating an average value between the two curves, wherein the average value is a bearing load. According to the method disclosed by the invention, the propulsion performance of the marine shaft system and the load borne by each bearing can be more perfect through an effective scientific experiment method of the shaft system jacking, the service lives of the bearings are prolonged by more than three times, and the failure rate of a high-elastic coupling of a gear case and bearing heating is reduced to be zero.

The present invention provides a water lubricated line shaft bearing assembly, comprising an outer annular steel shell and an inner layer made of low friction material attached to the outer shell, the inner layer having a non-uniform thickness which is formed with wall portions of increased thickness defining a plurality of shaft engaging portions and with wall portions of reduced thickness defining a plurality of lubricant passages. The shaft engaging portions are capable of being journalled on a line shaft adapted to drive a downhole geothermal production pump and the steel shell is engageable with an inner wall of a lubrication tube vertically extending through a water column through which pumped geothermal fluid is delivered, lubrication water bled from the pumped geothermal fluid being used to supply lubrication water through the lubricant passages. The steel shell has sufficient compressive strength to withstand the stress imposed by the high rotational speed of the line shaft of the geothermal production pump. The low friction material of the inner liner allows solid debris present or entrained in the lubrication water to slide over the inner line. Solid debris is prevented from accumulating due to the presence of the passages through which the lubrication water flows.

The invention discloses an energy-saving type electric bicycle hub motor which comprises a main shaft, a hub and an end cover. The hub sleeves the main shaft through a first bearing. The end cover sleeves the main shaft through a second bearing. The hub is connected to a sun wheel tooth ring fixed to the motor through a speed reducing mechanism. The sun wheel tooth ring is driven by the motor to rotate, and thus the hub is driven to rotate by the speed reducing mechanism. Under the premise of maintaining a through shaft structure, a two-stage speed reducing planetary gear mechanism with the engagement of a powder metallurgy gear and an engineering plastic gear is used, the reliability of the hub motor structure is ensured, the transmission noise is effectively reduced, the high speed performance of the disk type ironless DC motor can be fully played, and the continuation mileage of an electric bicycle is improved greatly according to the high efficiency characteristic of a disk type ironless motor at a low torque motor.

The invention discloses a foreign matter detection device for an automatic lamp inspector. The detection device comprises a base, a main shaft, a turn plate and a synchronous tracking image acquisition component, wherein the main shaft is fixed to the base; the synchronous tracking image acquisition component comprises a revolving arm, an image acquisition component and a backlight source; the revolving arm is connected to the main shaft; the image acquisition component and the backlight source are symmetrically arranged on both sides of a bottle body on the turn plate and are fixed to the revolving arm through supporting parts; the base is provided with a supporting bracket; the turn plate is supported above the supporting bracket and can rotate on the supporting bracket; the supporting bracket is provided with an accommodating cavity; and the image acquisition component or the backlight source is fixed to the revolving arm through the supporting part inserted into the accommodating cavity. The foreign matter detection device for the automatic lamp inspector has the advantages of simple and compact structure, low cost, stability, reliability and capability of enhancing foreign matter detection accuracy.

A rotatable rock-soil testing machine relates to rock-soil testing machine equipment. A lower flange of a sample cylinder (18) is connected with a downward thrust aligning roller bearing (15) through a pedestal (10) under the cylinder; an upper flange of the sample cylinder (18) is connected with a main shaft (4) through a left side plate and a right side plate (20,16); a bull gear (2) is connected with the main shaft and engaged with a gear on a pinion shaft (3); a motor (1) is connected with the pinion shaft through a reduction box (30) and a shaft coupling (29); and rotation of the main shaft (4) drives the sample cylinder (18) and the pedestal (10) under the cylinder to rotate together, so as to realize rotation of a rock-soil sample (8). The rotatable rock-soil testing machine solvesa rotation problem during axial loading of the rock-soil sample (8), so as to facilitate application of industrial CT continuous scan on internal dynamics of the rock-soil sample during axial loadingand benefit deepening of research on rock-soil mechanics.

The invention relates to a bidirectional coaxial reducer motor. Output shafts arranged at both ends of the reducer motor are coaxial and can output power synchronously. A rotary shaft of a motor rotor in the reducer motor is a through hole shaft one longer end of which is a worm or a gear; during rotation, the rotor drives a reducing mechanism in a reducing gearbox to reduce speed of the output shafts which are coaxial with the motor rotor and pass through the through hole on the rotor; the speed-reduction box and an electrical appliance control box are respectively located at both ends of the axial direction of the motor to form an integrity; and the output shafts extend from both ends of the speed-reduction box and the electrical appliance control box so as to realize the functions of bidirectional,coaxial and synchronous output of power after speed reduction.

The invention discloses a stirrer, which comprises a machine frame, wherein the machine frame is provided with a motor which is connected with a driving synchronous belt wheel through a driven synchronous belt wheel and a synchronous belt and has a main shaft which is connected with the shaft sleeve of the driven synchronous belt wheel, and the main shaft is also sleeved with integrally connected upper and lower gears; the machine frame is also provided with a pneumatic clutch and a transmission gear meshed with the lower gear, the surface of the main shaft is provided with threads, a socket platform is sleeved on the threads, a revolution tank and a rotation tank are fixed on the left and right sides of the socket platform respectively, the lower part of the rotation tank is connected with a pinion through a connecting shaft, and the pinion is meshed with the upper gear; and the machine frame is provided with an air cylinder and the front end of the air cylinder is connected with a baffle plate. The stirrer is reasonable in structure and convenient in use and can uniformly stir materials, avoid generating air bubbles, eliminate air bubbles and be used in fields of electronics, chemical, light manufacturing, food, medicine, building materials, farm chemical and the like for mixing, dispersing and other processing of materials.

The invention discloses a reversal method teaching tool of an epicyclic gear train. The accuracy and the veracity of a reversal method formula are verified by measuring the rotating speeds generated before and after a reversal method is adopted, and meanwhile types of the epicyclic gear train can be converted. The teaching tool comprises a body demonstration part, a large sun gear and small sun gear driving device, a main shaft reversal driving device, a measured speed display device and a rack, wherein the body demonstration part and the large sun gear and small sun gear driving device are both installed on a main shaft, the main shaft rotates at the speed with the magnitude equal to and the direction opposite to those of a planet carrier, the epicyclic gear train is driven by the main shaft to reverse as a whole, and reversal method demonstration is achieved. According to the teaching tool, based on reversing of the main shaft, the structure is simplified, the manufacturing technology is simple, and the teaching tool is easy to obtain; the dynamic contact mode in which a carbon brush and a friction ring are combined is adopted for supplying power to a sun gear driving motor, and the problem that a motor lead is wound on the shaft is solved. The teaching tool is small in size as a whole, light in weight and convenient to operate and use in a classroom.

The invention relates to the stone processing machinery technical field, and especially relates to a stone multidimensional space heterotype curved surface processing five-shaft motion bridge type stone cutter comprising a pedestal, a work table, a side frame, a crossbeam, a vertical travel mechanism, a transverse travel mechanism, a lifting cutting mechanism, a cutting link seat, a cutter device, a C-shaft rotary drive mechanism, an A-shaft rotary drive mechanism, and a pc industrial control box; the vertical travel mechanism, the transverse travel mechanism, the lifting cutting mechanism, the C-shaft rotary drive mechanism, and the A-shaft rotary drive mechanism, are respectively connected with the pc industrial control box, and the cutter can be controlled on three linear shafts (X,Y and Z) and the two rotary shafts (A and C). the five-shaft motion bridge type stone cutter has five-shaft motion, real time linear, arc interpolation functions, can realize complex pentahedron curved surface processing, is mainly applied to multidimensional space heterotype curved surface stone decoration elaboration processing, thus doubling efficiency; the five-shaft motion bridge type stone cutter is stable in operation, and can reduce production and equipment maintenance cost.

The invention discloses a wireless two-way transmission device for signals between a main shaft and a movable sleeve in an underground rotary steering drilling tool and belongs to the field of petroleum and natural gas well drilling. The device comprises non-contact rotary transformers, a data transmitter and a data receiver, wherein upper and lower sets of the non-contact rotary transformers are arranged; each set of the non-contact rotary transformer comprises a first non-contact rotary transformer and a second non-contact rotary transformer; each first non-contact rotary transformer is mounted in an outer wall groove of a rotary main shaft; each second non-contact rotary transformer is mounted in an inner wall groove of a guide movable sleeve; and the two sets of the non-contact rotary transformers work independently and respectively and rotate and move relatively. The magnetic resistance between a magnetic core on the rotary main shaft and a magnetic core on the guide movable sleeve is kept constant and is not influenced by rotary movement, so as to guarantee the stability of signal transmission and be easily applied to underground strong-vibration and impact environments.