22results about How to "Small transmission error" patented technology

The invention discloses an involute spur gear meshing stiffness optimization method for modification based on dynamic transmission errors, which is characterized in that the involute tooth profile is accurately modeled, the meshing stiffness is calculated by adopting a Weber energy method, and the impact generated by single-tooth and double-tooth meshing alternation is reduced through tooth profile modification, so that the transmission errors are reduced, and the involute spur gear meshing stiffness is optimized. The technology is applied to an idle gear system, and the meshing rigidity is iteratively optimized by establishing an idle gear nonlinear kinetic equation and analyzing dynamic transmission errors responded by the system until the requirements for transmission precision and design strength are met.

The invention provides a self-adaptive cable arrangement device, a control method, a control unit and a medium. The method is applied to the self-adaptive cable arrangement device and comprises the steps that a programmable controller collects a first rotation signal of a cable arrangement driver, a second rotation signal of a roller driver and a switching signal of a proximity switch at the previous moment; the programmable controller determines the layer number of the cable wound on the cable storage roller according to the switching signal, and determines the third rotation direction of the cable arrangement driver driving the threaded lead screw at the current moment according to the layer number; the programmable controller constructs a self-adaptive adjustment coefficient according to the first rotating speed, the second rotating speed, the rope diameter of the mooring rope and the thread pitch of the threaded lead screw; and the programmable controller determines a third rotating speed at which the cable arrangement driver drives the threaded lead screw at the current moment according to the self-adaptive adjustment coefficient and the first rotating speed, and controls the roller driver according to the third rotating direction and the third rotating speed. The control precision of cable arrangement can be improved.

This invention discloses an integrated power device combining a low-tooth-difference reducer and a motor, comprising a motor, a housing, and an output shaft coaxially arranged, with the housing rotatably connected to the output shaft. The housing has a hollow cavity inside, into which the motor output shaft extends and is linked via a reduction mechanism. A camshaft is connected to one end of the motor output shaft near the output shaft. The reduction mechanism includes a needle roller bearing mounted on the camshaft, a drive gear mounted on the needle roller bearing, and a transmission assembly installed between the drive gear and the output shaft. The inner wall of the housing has an internal gear ring, with the drive gear meshing with the internal gear ring using low-tooth-difference gears. This invention improves transmission stability and efficiency by designing the motor output shaft and camshaft as an integrated unit, while also making the space more compact. The drive gear and output shaft are driven by transmission steel balls, allowing the output end to directly bear radial force. The structure is simplified, with fewer parts, easier control of part machining accuracy, and lower manufacturing costs.

The utility model discloses a novel push wheel linkage feeding mechanism belongs to the technical field of automation equipment, including fixed plate, feeding box, rotary feeding unit, X axis feeding unit, Y axis feeding unit and push unit, and fixed plate horizontal arrangement is installed in the top of fixed plate, and rotary feeding unit is installed in the top of fixed plate, and sets up at the back of feeding box, and X axis feeding unit is installed in the top of fixed plate, and Y axis feeding unit is installed in the top of fixed plate, and sets up at the front of feeding box, and push unit is installed in the top of fixed plate, and sets up at the front of rotary feeding unit. The utility model discloses through the innovation mechanical linkage and sensing control, realized low -cost, high -efficient, high reliability's automation feeding, especially applicable to the quick sorting and the turning scene of small -size material, and the power manufacturing industry reduces the benefit of benefit.

This invention provides a planetary gear reducer, belonging to the technical field of reducer technology. It solves the problem of unstable torque in existing technologies. This invention includes a front housing, a gear ring body, a rear housing, a planetary gear assembly, an input shaft, and an output splined shaft. The front housing, gear ring body, and rear housing are connected sequentially, and the planetary gear assembly is installed inside the front housing, gear ring body, and rear housing. The planetary gear assembly includes planetary gears, a sun gear, and a planet carrier. The planet carrier is a hollow annular sleeve with a mounting hole in the center and a connecting ring formed on the rear side. The planetary gears are fitted onto the planetary shafts and located in the mounting hole, meshing with the inner side of the gear ring body. The sun gear is located inside the planet carrier and meshes with the planetary gears. A keyway groove is formed on the inner side of the connecting ring groove on the rear side of the planet carrier, and the output splined shaft is connected to the rear side of the planet carrier through the keyway groove. This invention has the advantages of stable torque transmission and high precision.

The present invention discloses a superconducting strand bending strain precision measuring device, comprising a support frame, a driving mechanism installed on the upper part of the support frame, and the output end of the driving mechanism is connected to a weighing sensor and a pressure transmission module in sequence from top to bottom along the vertical direction; a bending strain module is installed on the lower part of the support frame, and when the output end of the driving module moves downward, it can apply pressure to the superconducting strand placed on the bending strain module through the pressure transmission module. In the superconducting strand bending strain precision measuring device provided by the present invention, the driving force generated by the driving mechanism applies downward pressure to the superconducting strand, and the pressure value is detected by the weighing sensor, which can accurately control the size of the pressure value and realize real-time monitoring; the bending strain module of the present invention has a novel structural design, and the overall bending strain transmission structure is simple, which reduces the transmission error caused by the complex mechanical mechanism, and greatly improves the application accuracy and measurement accuracy of the bending strain of the superconducting strand.

The utility model discloses a variable tooth thickness self-anti-backlash planetary reducer which comprises an inner gear ring, a sun gear, a planet carrier and a planet gear, teeth of the inner gear ring, the planet gear and the sun gear are variable tooth thickness teeth with the axial thickness gradually changing from one end to the other end, and the variable tooth thickness teeth are straight teeth or helical teeth. The planetary reducer further comprises a first anti-backlash mechanism and a second anti-backlash mechanism, wherein the first anti-backlash mechanism automatically pushes the planet gear to move towards the inner gear ring in the axial direction so as to eliminate the meshing clearance between the planet gear and the inner gear ring, and the second anti-backlash mechanism automatically pushes the sun gear to move towards the planet gear in the axial direction so as to eliminate the meshing clearance between the sun gear and the planet gear. The teeth of the inner gear ring, the planet gear and the sun gear are all variable-tooth-thickness teeth, the planet gear is automatically pushed to move towards the inner gear ring through the first anti-backlash mechanism, the sun gear is automatically pushed to move towards the planet gear through the second anti-backlash mechanism, and therefore the meshing clearance between the planet gear and the inner gear ring and the meshing clearance between the planet gear and the sun gear can be automatically eliminated. Therefore, the transmission error of the planetary reducer can be greatly reduced or even eliminated.

The application discloses a kind of multiple resolver synchronous high-precision detection device, adopts star type gear train to realize a motor input speed, rotation angle phase signal, generates multiple speed, rotation angle signal output resolver precision detection;Adopt the special structure of sliding adjustable type split unit to realize the clearance between star type gear train and sun gear, maximum limit gear transmission error is reduced;Using coaxial connection standard resolver to calibrate the resolver to be measured, removes the influence of gear transmission error and clearance in star type gear train;Thus, the purpose of high-precision detection is achieved.The device has the advantages of high detection precision, compact structure, easy adjustment, etc., and has broad market prospects.

The utility model provides an anti-impact electric cylinder, which belongs to the technical field of engineering machinery and comprises a lead screw pair mounted in an outer pipe, a lead screw in the lead screw pair is driven by a servo motor to rotate, the lead screw drives a nut to do reciprocating rectilinear motion along the surface of the lead screw when rotating, a connecting pipe is fixed at the upper end of the nut, and a push rod is sleeved at the upper end of the lead screw. The push rod is matched with an extension block at the upper end of the connecting pipe in a hooking and pulling mode, the surface of the connecting pipe is sleeved with a compression spring, the upper end of the compression spring makes contact with the lower end face of the push rod, and when the nut pushes the push rod to do forward linear movement through the compression spring, impact energy can be absorbed and converted into elastic potential energy; direct damage of impact to core components such as a lead screw pair and a gear pair is effectively reduced, component failure caused by impact is avoided, and the service life of the electric cylinder under the high-impact working condition is remarkably prolonged.

The utility model relates to the technical field of feeding equipment, specifically disclose a kind of discharging type feeding machine, including machine body and multiple feeding units, and feeding unit includes material storage table, lifts material frame, driving part and transmission assembly;Material storage table is obliquely arranged on machine body, for single layer to place multiple root pipe material to be processed, and the low end of material storage table is provided with stop block;Lifts material frame below material storage table, the oblique direction of the upper end of lifts material frame is consistent with the oblique direction of material storage table, and the coincident length of lifts material frame and material storage table is matched with the width of single pipe material, driving part drives lifts material frame reciprocating lifting, and lifts single pipe material on material storage table;Transmission assembly includes connecting rod, gear one and rack one, connecting rod is rotatably arranged on machine body, and two adjacent connecting rods are connected by differential shaft coupling structure one, gear one is fixedly sleeved on connecting rod, rack one is fixed on lifts material frame, gear one is engaged with rack one, and the feeding machine of the scheme improves the stability, continuity and processing efficiency of pipe material feeding.

The utility model discloses a wear-resistant motor for adjusting a variable valve lift of an engine, which belongs to the technical field of motors and comprises a casing, a stator fixed in the casing, a rotor arranged in a middle cavity of the stator, a through hole arranged in the rotor and penetrating through two ends of the rotor, and a rotating shaft fixed in the through hole. The motor is characterized in that one end of the rotating shaft is provided with a first extending section extending out of the shell, worm teeth are arranged on the first extending section, and a hard layer is arranged on the worm teeth. According to the motor, one end of the rotating shaft is provided with the first extension section extending out of the casing, and the worm teeth are arranged on the first extension section, so that the first extension section of the rotating shaft forms the worm, the rotating shaft and the worm are integrated, and the transmission reliability of the worm is enhanced; and meanwhile, the worm teeth are provided with the hard layers, so that the wear resistance of the worm teeth is enhanced, transmission errors caused by wear are reduced, and the precision of valve lift adjustment is improved.

The utility model discloses a large-size inner diameter measuring instrument, which is used for measuring the inner diameter of a workpiece, and comprises a digital display meter, a first mounting seat is connected above the digital display meter, and a second mounting seat is connected below the digital display meter; the fixed measuring head seat is connected with the first mounting seat through a length-replaceable extension rod, and a fixed measuring head is arranged above the fixed measuring head seat; the measuring rod body is connected with the second mounting seat through a detachable protective bridge, a movable measuring head is mounted at the bottom of the measuring rod body, and the distance between the movable measuring head and the fixed measuring head is the inner diameter size of the workpiece. The extension rods with different lengths and the protection bridge structures with different types can be replaced to measure different sizes, the application occasion is expanded, various different sizes can be conveniently measured, the measurement precision is high, and most measurement requirements are met.

The present invention discloses a highly efficient and synchronous dual-redundancy magnetic sensitive angular displacement sensor, wherein the housing and the cover plate are interconnected to form an installation inner cavity, the rotating shaft is installed in the installation inner cavity through the rotating shaft bearing, and two driven shafts are installed in the installation inner cavity through driven bearings, the circumferential outer walls of the two driven shafts are respectively provided with gear teeth, the circumferential outer wall of the middle section of the rotating shaft is provided with gear teeth, the two driven shafts are respectively connected to the rotating shaft through gear teeth meshing, two magnetic steel mounting parts are respectively connected to the two driven shafts and are respectively located on the symmetrical sides of the rotating shaft, and the two magnetic steels are respectively installed on the two magnetic steel mounting parts. The present invention drives two magnetic steels to rotate synchronously in the same direction through the same rotating shaft in a gear transmission manner, and the shapes, sizes, magnetic field strengths, magnetization directions, pole pairs, corresponding hardware circuit principles, and installation methods of the two magnetic steels are exactly the same, so the consistency and synchronization of the two output signals are extremely high, meeting the application requirements of highly synchronized output signals.

The invention discloses a design method and system for high transmission stability of a line contact spiral bevel gear pair, and the method comprises the steps: determining the reference diameter d1 of the large end of a small gear tooth, the number z1 of small gear teeth, and the number z2 of large gear teeth according to a given gear pair transmission ratio i, the torque T or power P needing to be transmitted, and the modulus m of the large end of the gear teeth; establishing a function relationship between a midpoint helix angle beta m and a longitudinal contact ratio epsilon beta under the condition of keeping the reference diameter d1 of the large end of the small wheel tooth unchanged; based on a calculation formula of the total contact ratio epsilon r of the bevel gear, obtaining a function relationship between the midpoint helix angle beta m and the total contact ratio epsilon r; according to the obtained function relation, the total contact ratio epsilon r of the gear pair is set to be a certain integer value, so that the corresponding midpoint helix angle beta m is determined, and geometric parameter design of the gear pair is preliminarily completed. The method has the advantages that the influence of the helical angle and the contact ratio on the dynamic meshing characteristic is considered in the tooth surface design stage, the actual gear pair transmission error is reduced, and design and manufacturing of the high-performance line contact spiral bevel gear pair are achieved.

The utility model relates to the technical field of film laminating machines, and discloses a printing and packaging film laminating machine which comprises mounting bases, a transmission belt mounted between the mounting bases, an extending plate integrally formed on the right side of the top surface of each mounting base, an adjusting sliding rail fixedly mounted on each extending plate through a fixing bolt, and a sliding mounting arm slidably mounted on each adjusting sliding rail. Two sliding grooves are symmetrically formed in the front end face of the sliding installation arm, a movable arm is installed between the two sliding grooves, and a material storage roller and a film covering roller are rotationally connected to the movable arm. A gear transmission mode is adopted, transmission errors are greatly reduced, raw material films of the material storage roller and the film laminating roller are prevented from loosening, the film laminating stability is improved, the height of the film laminating shaft can be adjusted through inserting fit of the plug pins on the spring pins and the positioning holes in the adjusting sliding rails, and stable film laminating can be conducted on materials with different thicknesses.

The utility model provides a single-center-distance multi-stage speed reducer, which belongs to the field of gear transmission, and comprises an input shaft, a middle shaft, an output shaft scheme, an input shaft, a first middle shaft, a second middle shaft, an output shaft scheme, an input shaft, a duplex gear, a differential mechanism, a middle shaft and an output shaft scheme, and the structures of all the schemes are located in the same shell. The axes of the input shaft and the output shaft coincide or are parallel. According to the speed reducer, a main body speed reducer transmission mechanism is formed through a center distance and a transmission combination of an input shaft, a middle shaft and an output shaft combination or an input shaft, a middle shaft, a middle shaft and an output shaft combination or an input shaft, a duplex gear, a middle shaft, an output shaft and a differential mechanism; each transmission shaft stretches across a complete supporting structure (without any cantilever support) of bearings at the two ends, the duplex gear, the output shaft and the differential mechanism are integrated into a coaxial concentric structure, a two-axle-distance multi-stage speed ratio structure is formed, the structure is compact, the space is saved, and the power density is large.

This utility model discloses a multi-layer precision gear, relating to the field of gear technology. It includes a gear body, connecting holes, connecting components, positioning components, I-beam grooves, a second nut, and a screw. The connecting hole is located in the middle of the gear body. Multiple connecting components are positioned opposite each other at the top and bottom of the gear body. The positioning components are positioned between two opposing gear bodies. Multiple I-beam grooves are respectively located on the two sides where the gear bodies fit together. The second nut is engaged between two opposing I-beam grooves. The screw is threadedly inserted into the middle of the multiple I-beam grooves. This utility model, through the coordinated arrangement of the connecting components, positioning components, I-beam grooves, second nut, and screw, reduces transmission errors, further suppresses relative slippage between gears, and improves transmission stability. The screw and second nut penetrate the multi-layer gear body, enhancing overall rigidity, preventing loosening during high-speed operation, and reducing noise and wear caused by unstable transmission.

The utility model discloses a contact transmission mechanism of a dual-power change-over switch, which comprises a plurality of shells arranged in parallel, a transmission shaft is rotatably mounted among the plurality of shells, transmission mechanisms rotating along with the transmission shaft are mounted in the plurality of shells, and moving contact assemblies rotating along with arc-shaped sheets are arranged on the outer sides of the transmission mechanisms; the transmission mechanism comprises a rotating shaft, a spacer, two blocking pieces, a first transmission hole and two through holes, the rotating shaft is installed on the outer side of the transmission shaft and rotates along with the transmission shaft, the spacer is arranged on the outer side of the rotating shaft, the two blocking pieces are arranged on the two sides of the spacer respectively, and the first transmission hole is formed in the middle of the rotating shaft; according to the utility model, the transmission shaft can drive the plurality of transmission mechanisms to rotate at the same time, and the transmission mechanisms drive the moving contact assemblies to rotate together, so that the transmission error between the moving contact assemblies can be reduced, the synchronism between the moving contact assemblies can be increased, and the stable switching of a power supply can be ensured.

The utility model provides a gear shifting structure. The gear shifting structure comprises a gear shifting disc; a first shift fork; a second shift fork; a first power shaft; a second power shaft; the gear shifting piece comprises a first sliding pawl and a second sliding pawl which are arranged on the first power shaft and the second power shaft in a sliding mode respectively. The gear shifting disc rotates forwards and backwards under the action of external force, so that the first sliding pawl is selectively meshed with the first neutral gear tooth or the second gear tooth, the second sliding pawl is selectively meshed with the third gear tooth, the second neutral gear tooth or the first gear tooth, and a first gear state, a second gear state or a third gear state is formed. The problem that in the prior art, an existing gear shifting structure is not flexible in gear shifting is solved.

The present invention discloses a laser cutting device and a cutting process for automatically processing slag spraying, which relates to the technical field of laser cutting equipment, and includes a base frame, a support seat is installed inside the base frame, and a longitudinal moving device for driving a lateral moving device to move is fixedly installed on the top of the support seat. The present invention can closely accompany the laser cutting device during the plate processing process through an adsorption component, and instantly adsorb and clean the slag generated by laser cutting. In order to optimize the cleaning effect, the adsorption component adopts a periodic knocking mechanism to effectively prevent the slag from adhering to the inner wall of the placement box for storing the slag. In addition, the specially configured cleaning structure allows the staff to easily and regularly clean the slag inside the placement box to prevent blockage caused by excessive accumulation of slag, thereby maintaining the smooth operation of the system. The baffle is introduced into the design as a safety mechanism. When the adsorption component stops working, the baffle automatically closes the bottom outlet of the placement box by its own gravity.

The invention belongs to the technical field of medical instruments, and discloses a transmission device, a transmission system and a surgical robot. The transmission device comprises a transmission assembly, a transmission wire and a steering assembly. The transmission assembly is connected with the driving system and can slide in the linear transmission direction. The transmission wire is provided with a connecting section and a transmission section, the connecting section is connected with the surgical instrument, and the transmission section is connected with the transmission assembly; the steering assembly is rotationally connected to the transmission assembly and connected with the connecting section and the transmission section so that the connecting section and the transmission section can both extend in the linear transmission direction. When the transmission device is used, the transmission assembly slides in the linear direction, the transmission wire is matched with the steering assembly to achieve equal-proportion movement of the surgical instrument and the transmission assembly, high-precision transmission can be achieved through simple structure combination, and wire transmission can ensure that losses of all structures are small. Therefore, the overall manufacturing cost is reduced, meanwhile, the transmission error can be reduced, and the transmission precision is improved.

The utility model relates to the technical field of bookbinding machines, and particularly discloses a fixed shell split type lifting and drilling integrated mechanism for a bookbinding machine, which comprises a drilling tool part, a driving part and a transmission component matched with the driving part for use, the shell assembly is arranged on an external rack in a reciprocating motion mode, the shell assembly comprises a first shell used for bearing the driving piece and a cover body detachably connected with the first shell, and a cavity used for containing the transmission assembly is formed by the first shell and the cover body; the driving piece is used for driving the drilling tool piece to work through the transmission assembly, the transmission assembly is provided with a nut piece and a shaft body piece in transmission connection with the nut piece, the upper end and the lower end of the nut piece are rotationally arranged on the first shell and the cover body respectively, and the nut piece is used for being in threaded connection with a lead screw arranged on an external rack; the drilling tool part is arranged on the shaft body part, and through the detachable connection design of the first shell and the cover body, the binding mechanism forms a compact cavity used for containing the transmission assembly. According to the design, the overall structure is optimized, and the occupied space is reduced.