A motor shaft torque transmission stability detection device

By introducing linear guides, rotary supports, and load simulation components into the motor shaft torque detection device, combined with a hydraulic system and clamping components, the problem of fixed load in existing detection devices is solved, enabling accurate and stable detection of motor shaft torque and meeting the high precision requirements of precision transmission equipment.

CN122108583APending Publication Date: 2026-05-29JIANGSU RUIPU INTELLIGENT MFG TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU RUIPU INTELLIGENT MFG TECH CO LTD
Filing Date
2026-02-26
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Most existing motor shaft torque detection devices use a fixed load, resulting in poor detection results and failing to meet the high precision and stability requirements of precision transmission equipment.

Method used

A device for detecting the stability of motor shaft torque transmission was designed. By installing linear guides and rotary supports on the platform, different load conditions are simulated using drive components and load simulation components. Stable clamping and torque detection are achieved by combining a hydraulic system and clamping components.

Benefits of technology

It achieves accurate measurement and stable detection of motor shaft torque, and can simulate load changes in real working scenarios, thus improving the accuracy and adaptability of the detection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a motor shaft torque transmission stability detection device, and relates to the technical field of torque detection devices.The motor shaft torque transmission stability detection device comprises a platform, a linear guide rail is installed on the platform, a driving piece, a rotary support and a rotating support are slidingly installed on the linear guide rail, clamping pieces are arranged on the driving piece, a load simulation assembly is arranged at one end of the platform, an installation shaft is rotatably installed on the rotating support, a rotating disc is installed on the installation shaft, a driving part and a mass distribution module are installed on the rotating disc, and a motor shaft body is rotatably installed on the rotary support.When detection is performed, the mass distribution module is driven by the driving part to move away from or close to the center of the rotating disc, at which time the rotational inertia of the rotating disc is changed, so that the load condition in a real working scene is simulated, and finally the change in torque is detected by a torque detector.
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Description

Technical Field

[0001] This invention relates to the field of torque detection device technology, specifically a motor shaft torque transmission stability detection device. Background Technology

[0002] In the fields of precision transmission equipment such as servo drives, industrial robots, and new energy vehicles, the accuracy of motor shaft torque transmission and operational stability are key indicators for ensuring equipment control precision, transmission efficiency, and service life. Motor shaft torque testing devices, as core performance testing equipment, are mainly used for measuring motor shaft torque, evaluating transmission characteristics, and calibrating factory performance. They provide data support for transmission system design optimization, quality control, and performance verification. As precision transmission equipment develops towards higher speeds, higher precision, and higher reliability, higher requirements are placed on the accurate measurement of motor shaft torque, its adaptability to operating conditions, and its stability testing. Related testing technologies and devices are continuously developing towards greater adaptability, more accurate testing, and more comprehensive applications.

[0003] Most existing motor shaft torque detection devices operate on a fixed load, resulting in poor torque detection performance, thus requiring improvement. Summary of the Invention

[0004] The purpose of this invention is to provide a motor shaft torque transmission stability detection device to solve the problems raised in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: the motor shaft torque transmission stability detection device includes a platform, on which a linear guide rail is mounted, and a driving component and a rotary support are slidably mounted in sequence on the linear guide rail. A clamping component is provided on the driving component, and a torque detector is provided on the rotary support. A load simulation component is provided at the end of the platform away from the driving component. The load simulation component includes a rotating bracket, a mounting shaft, a turntable, a coupling, a receiving groove, a drive unit, and a mass distribution module; A rotating bracket is mounted on the end of the platform away from the drive component. A mounting shaft is rotatably mounted on the rotating bracket. A turntable is mounted on the end of the mounting shaft away from the drive component. The turntable has multiple receiving slots. A drive unit is mounted at the bottom of each receiving slot. A mass distribution module is mounted on the execution end of the drive unit. A motor shaft body is rotatably mounted on the rotating support. One end of the motor shaft body is clamped by a clamping device, and the other end is connected to the mounting shaft via a coupling. When detecting the torque of the motor shaft, the motor shaft body is mounted on the rotating support. The positions of the drive component and the rotating support are then adjusted using a linear guide rail. Subsequently, the mounting shaft is connected to one end of the motor shaft body via a coupling, and the other end is fixed by a clamping device. Then, the drive component is started. During rotation, the mass distribution module moves away from or towards the center of the turntable via the drive unit. At this time, the rotational inertia of the turntable increases or decreases, thereby simulating the load situation in a real working scenario. Finally, the change in torque is detected by a torque detector.

[0006] As a preferred technical solution, the drive unit includes a hydraulic bottom rod, a hydraulic top rod, an upper connecting rod, a lower connecting rod, a bottom rod fluid passage, a top rod fluid passage, a bottom rod annular channel, a top rod annular channel, and an oil station; A set of hydraulic bottom rods and hydraulic top rods are installed at the bottom of the receiving tank. The hydraulic bottom rods and hydraulic top rods are fastened to the mass distribution module. Lower connecting rods are rotatably installed at the bottom of the receiving tank on both sides of the hydraulic bottom rods. An upper connecting rod is rotatably installed at the bottom of the mass distribution module. The upper and lower connecting rods are rotatably connected by pins. The turntable has bottom rod liquid channels, top rod liquid channels, bottom rod annular channels, and top rod annular channels. The bottom rod liquid channels and top rod liquid channels are respectively connected to the liquid inlet ends of the hydraulic bottom rods and hydraulic top rods. The rod ring channel is connected to multiple bottom rod hydraulic channels, and the top rod ring channel is connected to multiple top rod hydraulic channels. An oil station is installed on the turntable. The oil station's delivery end is connected to the bottom rod ring channel and the top rod ring channel through pipelines. When different load conditions need to be simulated, hydraulic oil is supplied to the bottom rod ring channel and the top rod ring channel through the oil station, so that the hydraulic oil enters the hydraulic bottom rod and hydraulic top rod from the bottom rod hydraulic channel and the top rod hydraulic channel respectively, thereby lifting the mass distribution module. At the same time, the distance of the mass distribution module from the center of the turntable is limited by the upper connecting rod and the lower connecting rod.

[0007] As a preferred technical solution, the mass distribution module includes a tank body, a tank cover, a resistance plate, a passage hole, a slip ring, and a rotating part; The actuator end of the drive unit is equipped with a trough, and a trough cover is provided at the opening of the trough. Multiple resistance plates are provided inside the trough. Two adjacent resistance plates are connected end to end by a rotating part in a folded shape. The resistance plates at the top and bottom are connected to the trough cover and the trough body by the rotating part, respectively. Passage holes are provided on the resistance plates. The hydraulic jack rod passes through the bottom of the trough body and the passage hole and is fastened to the trough cover. A slip ring is rotatably installed in the passage hole. The slip ring is slidably installed on the hydraulic jack rod. When the lifting distance of the hydraulic bottom rod and the hydraulic jack rod is the same, the trough body and the trough cover maintain the initial closed state. At this time, it is equivalent to expanding the radius of the turntable and increasing its rotational inertia. When the hydraulic bottom rod does not work or the lifting distance is less than the lifting distance of the hydraulic jack rod, the trough cover disengages from the trough body and drives the folded resistance plates to extend and unfold, so that they form wind resistance when rotating, thereby simulating different working loads.

[0008] As a preferred technical solution, the clamping component includes a fixing ring, a guide groove, a slider, a clamping head, a locking rod, a drive ring, an arc-shaped inclined groove, a bevel gear ring, a driving bevel gear, a cover, and an auxiliary anti-loosening component; The output end of the drive component is equipped with a fixed ring, which has a guide groove. A slider is slidably installed in the guide groove, and a clamping rod and a gripping head are installed on the slider. A drive ring is rotatably installed on the fixed ring, and the drive ring has an arc-shaped inclined groove. The clamping rod is slidably installed in the arc-shaped inclined groove. A bevel gear ring is installed on the drive ring, and a cover is fitted on the outside of the drive ring. An active bevel gear is rotatably installed on the inner wall of the cover, and the active bevel gear meshes with the bevel gear ring. An auxiliary anti-loosening component is provided inside the fixed ring. After the motor shaft body is adjusted, the drive ring is rotated by rotating the active bevel gear, thereby driving the gripping head on the slider to clamp the motor shaft body. During rotation, the auxiliary anti-loosening component ensures that the gripping head will not loosen, thus achieving the purpose of stable clamping.

[0009] As a preferred technical solution, the auxiliary anti-loosening component includes an annular groove, an upper ring tooth, a lower ring tooth, a cylindrical cavity, a piston, a connecting rod, a liquid storage cavity, and a squeezing block; An annular groove is formed on the contact surface between the fixed ring and the drive ring. A lower ring tooth is slidably installed in the annular groove, and an upper ring tooth is installed on the drive ring. A cylindrical cavity and a liquid storage cavity are formed in the fixed ring below the annular groove, and the cylindrical cavity and the liquid storage cavity are interconnected. A piston is slidably installed in the cylindrical cavity. The piston is connected to the lower ring tooth through a connecting rod. A squeezing block is slidably installed in the liquid storage cavity. When the fixed ring rotates, the squeezing block in the liquid storage cavity slides away from the center of the fixed ring under the action of centrifugal force, and squeezes the liquid in the cavity into the cylindrical cavity. At this time, the piston moves upward and lifts the lower ring tooth through the connecting rod, so that it contacts the upper ring tooth, thereby restricting its rotation and achieving the anti-loosening effect.

[0010] As a preferred technical solution, the cylindrical cavity and the piston, as well as the liquid storage cavity and the extrusion block, are connected by buffer springs.

[0011] As a preferred technical solution, the coupling is a flexible coupling.

[0012] As a preferred technical solution, a base is installed at the bottom of the platform, and an installation groove and a buffer groove are provided on the base. The platform is installed in the installation groove, and a buffer component is installed in the buffer groove.

[0013] As a preferred technical solution, a buffer pad is installed between the contact surface of the platform and the mounting groove.

[0014] As a preferred technical solution, spring coils are installed at the acute angle surfaces of the two adjacent resistance plates in their initial state.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This application involves mounting the motor shaft body onto a rotating support when detecting the torque of the motor shaft. The positions of the drive unit and the rotating support are then adjusted using a linear guide rail. Subsequently, the mounting shaft is connected to one end of the motor shaft body via a coupling, and the other end is fixed by a clamping component. Then, the drive unit is activated, and during rotation, the mass distribution module moves away from or towards the center of the turntable via the drive unit. At this time, the rotational inertia of the turntable increases or decreases, thereby simulating the load situation in a real working scenario. Finally, the change in torque is detected by a torque detector.

[0016] 2. In this application, when the lifting distances of the hydraulic bottom rod and the hydraulic top rod are the same, the tank body and the tank cover remain in the initial engaged state. At this time, it is equivalent to expanding the radius of the turntable and increasing its rotational inertia. When the hydraulic bottom rod does not work or the lifting distance is less than the lifting distance of the hydraulic top rod, the tank cover detaches from the tank body and drives the folded resistance plate to extend and unfold, so that it forms wind resistance when rotating, thereby simulating different working loads. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall first-view structure of the present invention; Figure 2 This is a schematic diagram of the first cross-sectional structure of the present invention; Figure 3 This is a schematic diagram of the first partial cross-sectional structure of the load simulation component of the present invention; Figure 4 This is a schematic diagram of the second partial cross-sectional structure of the load simulation component of the present invention; Figure 5 This is a schematic diagram of a first partial cross-sectional structure of the clamping member of the present invention; Figure 6 This is a schematic diagram of a half-section of the clamping component of the present invention; Figure 7 for Figure 4 Enlarged structural diagram at point A in the diagram; Figure 8 for Figure 6 A magnified structural diagram at point B in the diagram.

[0018] In the diagram: 1. Base; 101. Mounting slot; 102. Buffer slot; 103. Buffer component; 104. Buffer pad; 2. Platform; 3. Linear guide rail; 4. Drive component; 5. Rotary support; 8. Motor shaft body; 9. Spring ring; 6. Clamping components; 601. Fixing ring; 602. Guide groove; 603. Slider; 6031. Clamping head; 604. Locking rod; 605. Drive ring; 606. Arc-shaped inclined groove; 607. Bevel gear ring; 608. Drive bevel gear; 609. Cover; 610. Auxiliary anti-loosening component; 611. Annular groove; 612. Upper ring tooth; 613. Lower ring tooth; 614. Cylindrical cavity; 615. Piston; 616. Connecting rod; 617. Liquid storage cavity; 618. Squeezing block; 619. Buffer spring; 7. Load simulation component; 701. Rotating bracket; 702. Mounting shaft; 703. Turntable; 7031. Receiving tank; 704. Coupling; 705. Drive unit; 7051. Hydraulic bottom rod; 7052. Hydraulic top rod; 7053. Upper connecting rod; 7054. Lower connecting rod; 7055. Bottom rod fluid passage; 7056. Top rod fluid passage; 7057. Bottom rod ring passage; 7058. Top rod ring passage; 7059. Oil station; 706. Mass distribution module; 7061. Tank body; 7062. Tank cover; 7063. Resistance plate; 7064. Passage hole; 7065. Slip ring; 7066. Rotating unit. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example: Figures 1-2 As shown, the present invention provides a technical solution for a motor shaft torque transmission stability detection device. The motor shaft torque transmission stability detection device includes a platform 2, a linear guide rail 3 is installed on the platform 2, a driving component 4 and a rotary support 5 are slidably installed on the linear guide rail 3 in sequence, a clamping component 6 is provided on the driving component 4, a torque detector is provided on the rotary support 5, and a load simulation component 7 is provided at the end of the platform 2 away from the driving component 4. The load simulation component 7 includes a rotating bracket 701, a mounting shaft 702, a turntable 703, a coupling 704, a receiving groove 7031, a drive unit 705, and a mass distribution module 706; A rotating bracket 701 is mounted on the end of platform 2 away from the drive component 4. A mounting shaft 702 is rotatably mounted on the rotating bracket 701. A turntable 703 is mounted on the end of the mounting shaft 702 away from the drive component 4. The turntable 703 has multiple receiving slots 7031. A drive unit 705 is mounted at the bottom of the receiving slots 7031. A mass distribution module 706 is mounted on the execution end of the drive unit 705. A motor shaft body 8 is rotatably mounted on the rotating support 5. One end of the motor shaft body 8 is clamped by a clamping member 6, and the other end is connected to the mounting shaft 702 by a coupling 704. When the torque of the motor shaft is detected... At this time, the motor shaft body 8 is installed on the rotary support 5, and the position of the drive component 4 and the rotary support 5 is adjusted by the linear guide rail 3. Then, the mounting shaft 702 is connected to one end of the motor shaft body 8 by the coupling 704, and the other end is fixed by the clamping component 6. Then, the drive component 4 is started. During the rotation, the mass distribution module 706 is moved away from or closer to the center of the turntable 703 by the drive unit 705. At this time, the rotational inertia of the turntable 703 increases or decreases, thereby simulating the load situation in the real working scenario. Finally, the change of torque is detected by the torque detector.

[0021] like Figure 3 , Figure 4 and Figure 7 As shown, the drive unit 705 includes a hydraulic bottom rod 7051, a hydraulic top rod 7052, an upper connecting rod 7053, a lower connecting rod 7054, a bottom rod hydraulic passage 7055, a top rod hydraulic passage 7056, a bottom rod annular channel 7057, a top rod annular channel 7058, and an oil station 7059. A set of hydraulic bottom rods 7051 and hydraulic top rods 7052 are installed at the bottom of the receiving tank 7031. The hydraulic bottom rods 7051 and hydraulic top rods 7052 are fastened to the mass distribution module 706. Lower connecting rods 7054 are rotatably installed at the bottom of the receiving tank 7031 on both sides of the hydraulic bottom rods 7051. An upper connecting rod 7053 is rotatably installed at the bottom of the mass distribution module 706. The upper connecting rod 7053 and the lower connecting rod 7054 are rotatably connected by pins. The turntable 703 has bottom rod liquid channels 7055, top rod liquid channels 7056, bottom rod annular channels 7057 and top rod annular channels 7058. The bottom rod liquid channels 7055 and top rod liquid channels 7056 are respectively connected to the liquid inlet ends of the hydraulic bottom rods 7051 and hydraulic top rods 7052. The ring channel 7057 is connected to multiple bottom rod hydraulic channels 7055, and the top rod ring channel 7058 is connected to multiple top rod hydraulic channels 7056. An oil station 7059 is installed on the turntable 703. The oil station 7059 is connected to the bottom rod ring channel 7057 and the top rod ring channel 7058 through pipelines. When different load conditions need to be simulated, hydraulic oil is supplied to the bottom rod ring channel 7057 and the top rod ring channel 7058 through the oil station 7059, so that the hydraulic oil enters the hydraulic bottom rod 7051 and the hydraulic top rod 7052 from the bottom rod hydraulic channels 7055 and the top rod hydraulic channels 7056 respectively, so that it lifts the mass distribution module 706. At the same time, the distance of the mass distribution module 706 from the center of the turntable 703 is limited by the upper connecting rod 7053 and the lower connecting rod 7054.

[0022] The mass distribution module 706 includes a trough 7061, a trough cover 7062, a resistance plate 7063, a passage hole 7064, a slip ring 7065, and a rotating part 7066; The actuator end of the drive unit 705 is equipped with a groove 7061. A groove cover 7062 is provided at the opening of the groove 7061. Multiple resistance plates 7063 are provided inside the groove 7061. Two adjacent resistance plates 7063 are connected end to end by a rotating part 7066 in a folded shape. The top and bottom resistance plates 7063 are connected to the groove cover 7062 and the groove 7061 respectively by the rotating part 7066. A passage hole 7064 is provided on the resistance plate 7063. A hydraulic push rod 7052 passes through the bottom of the groove 7061 and the passage hole 7064 and is fastened to the groove cover 7062. The passage hole 7064 rotates... A slip ring 7065 is slidably mounted on the hydraulic jack 7052. When the lifting distances of the hydraulic bottom rod 7051 and the hydraulic jack 7052 are the same, the tank body 7061 and the tank cover 7062 maintain their initial engagement state. At this time, the radius of the turntable 703 is expanded, and its rotational inertia increases. When the hydraulic bottom rod 7051 is not working or the lifting distance is less than the lifting distance of the hydraulic jack 7052, the tank cover 7062 disengages from the tank body 7061 and drives the folded resistance plate 7063 to extend and unfold, so that it forms wind resistance when rotating, thereby simulating different working loads.

[0023] like Figure 5 , Figure 6 and Figure 8 As shown, the clamping component 6 includes a fixing ring 601, a guide groove 602, a slider 603, a clamping head 6031, a locking rod 604, a drive ring 605, an arc-shaped inclined pull groove 606, a bevel gear ring 607, a drive bevel gear 608, a cover 609, and an auxiliary anti-loosening component 610. A retaining ring 601 is installed at the output end of the drive component 4. A guide groove 602 is provided on the retaining ring 601. A slider 603 is slidably installed in the guide groove 602. A locking rod 604 and a clamping head 6031 are installed on the slider 603. A drive ring 605 is rotatably installed on the retaining ring 601. An arc-shaped inclined groove 606 is provided on the drive ring 605. The locking rod 604 is slidably installed in the arc-shaped inclined groove 606. A bevel gear ring 607 is installed on the drive ring 605. A cover 6 is fitted on the outer side of the drive ring 605. 09. An active bevel gear 608 is rotatably mounted on the inner wall of the cover 609. The active bevel gear 608 meshes with the bevel gear ring 607. An auxiliary anti-loosening component 610 is provided in the fixing ring 601. After the motor shaft body 8 is adjusted, the drive ring 605 is rotated by rotating the active bevel gear 608, thereby driving the clamping head 6031 on the slider 603 to clamp the motor shaft body 8. During rotation, the auxiliary anti-loosening component 610 ensures that the clamping head 6031 will not loosen, thereby achieving the purpose of stable clamping.

[0024] The auxiliary anti-loosening component 610 includes an annular groove 611, an upper ring tooth 612, a lower ring tooth 613, a cylindrical cavity 614, a piston 615, a connecting rod 616, a liquid storage cavity 617, and a squeezing block 618. An annular groove 611 is formed on the contact surface between the fixed ring 601 and the drive ring 605. A lower ring tooth 613 is slidably installed in the annular groove 611, and an upper ring tooth 612 is installed on the drive ring 605. A cylindrical cavity 614 and a liquid storage cavity 617 are formed in the fixed ring 601 below the annular groove 611, and the cylindrical cavity 614 and the liquid storage cavity 617 are interconnected. A piston 615 is slidably installed in the cylindrical cavity 614. The piston 615 is connected to the lower ring tooth 613 through a connecting rod 616. A squeezing block 618 is slidably installed in the liquid storage cavity 617. When the fixed ring 601 rotates, the squeezing block 618 in the liquid storage cavity 617 slides away from the center of the fixed ring 601 under the action of centrifugal force, and squeezes the liquid in the cavity into the cylindrical cavity 614. At this time, the piston 615 moves upward and lifts the lower ring tooth 613 through the connecting rod 616, so that it contacts the upper ring tooth 612, thereby restricting its rotation and achieving the anti-loosening effect.

[0025] The cylindrical cavity 614 and the piston 615, as well as the liquid storage cavity 617 and the extrusion block 618, are connected by a buffer spring 619.

[0026] Coupling 704 is a flexible coupling.

[0027] The platform 2 is mounted on a base 1 at its bottom. The base 1 has an installation groove 101 and a buffer groove 102. The platform 2 is installed in the installation groove 101 and a buffer component 103 is installed in the buffer groove 102.

[0028] A buffer pad 104 is installed between the contact surface of platform 2 and mounting groove 101.

[0029] Spring coils 9 are installed at the acute angles of the two adjacent resistance plates 7063 in their initial state.

[0030] Working principle of the invention: When detecting the torque of the motor shaft, the motor shaft body 8 is mounted on the rotary support 5, and the positions of the drive component 4 and the rotary support 5 are adjusted by the linear guide rail 3. Then, the mounting shaft 702 is connected to one end of the motor shaft body 8 by the coupling 704, and the other end is fixed by the clamping component 6. Then, the drive component 4 is started. During the rotation, the mass distribution module 706 is moved away from or closer to the center of the turntable 703 by the drive unit 705. At this time, the rotational inertia of the turntable 703 increases or decreases, thereby simulating the load situation in the real working scenario. Finally, the change in torque is detected by the torque detector.

[0031] When different load conditions need to be simulated, hydraulic oil is supplied to the bottom rod ring channel 7057 and the top rod ring channel 7058 through the oil station 7059, so that the hydraulic oil enters the hydraulic bottom rod 7051 and the hydraulic top rod 7052 from the bottom rod fluid channel 7055 and the top rod fluid channel 7056 respectively, which lifts the mass distribution module 706. At the same time, the distance of the mass distribution module 706 from the center of the turntable 703 is limited by the upper connecting rod 7053 and the lower connecting rod 7054.

[0032] When the lifting distances of the hydraulic bottom rod 7051 and the hydraulic top rod 7052 are the same, the tank body 7061 and the tank cover 7062 remain in their initial engaged state. At this time, the radius of the turntable 703 is increased, and its rotational inertia increases. When the hydraulic bottom rod 7051 is not working or the lifting distance is less than the lifting distance of the hydraulic top rod 7052, the tank cover 7062 disengages from the tank body 7061 and drives the folded resistance plate 7063 to extend and unfold, so that it forms wind resistance when rotating, thereby simulating different working loads.

[0033] After the motor shaft body 8 is adjusted, the drive ring 605 is rotated by rotating the active bevel gear 608, which in turn drives the clamping head 6031 on the slider 603 to clamp the motor shaft body 8. During rotation, the auxiliary anti-loosening component 610 ensures that the clamping head 6031 will not loosen, thereby achieving the purpose of stable clamping.

[0034] When the fixed ring 601 rotates, the squeezing block 618 in the liquid storage chamber 617 slides away from the center of the fixed ring 601 under the action of centrifugal force, and squeezes the liquid in the chamber into the cylindrical chamber 614. At this time, the piston 615 moves up and lifts the lower ring tooth 613 through the connecting rod 616, so that it contacts the upper ring tooth 612, thereby limiting its rotation and achieving the anti-loosening effect.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for detecting the stability of motor shaft torque transmission, characterized in that: The motor shaft torque transmission stability detection device includes a platform (2), on which a linear guide rail (3) is installed. A drive component (4) and a rotary support (5) are slidably installed on the linear guide rail (3). A clamping component (6) is provided on the drive component (4), and a torque detector is provided on the rotary support (5). A load simulation component (7) is provided at the end of the platform (2) away from the drive component (4). The load simulation component (7) includes a rotating bracket (701), a mounting shaft (702), a turntable (703), a coupling (704), a receiving groove (7031), a drive unit (705), and a mass distribution module (706). A rotating bracket (701) is installed at one end of the platform (2) away from the driving component (4). An installation shaft (702) is rotatably installed on the rotating bracket (701). A turntable (703) is installed at one end of the installation shaft (702) away from the driving component (4). A plurality of receiving slots (7031) are provided on the turntable (703). A driving part (705) is installed at the bottom of the receiving slot (7031). A mass distribution module (706) is installed at the execution end of the driving part (705). A motor shaft body is rotatably installed on the rotating support (5). One end of the motor shaft body is clamped by a clamping member (6), and the other end is connected to the installation shaft (702) by a coupling (704).

2. The motor shaft torque transmission stability detection device according to claim 1, characterized in that: The drive unit (705) includes a hydraulic bottom rod (7051), a hydraulic top rod (7052), an upper connecting rod (7053), a lower connecting rod (7054), a bottom rod fluid passage (7055), a top rod fluid passage (7056), a bottom rod ring passage (7057), a top rod ring passage (7058), and an oil station (7059). A set of hydraulic bottom rods (7051) and hydraulic top rods (7052) are installed at the bottom of the receiving tank (7031). The hydraulic bottom rods (7051) and hydraulic top rods (7052) are fastened to the mass distribution module (706). Lower connecting rods (7054) are rotatably installed at the bottom of the receiving tanks (7031) on both sides of the hydraulic bottom rods (7051). An upper connecting rod (7053) is rotatably installed at the bottom of the mass distribution module (706). The upper connecting rods (7053) and lower connecting rods (7054) are rotatably connected by pins. The turntable (703) has a bottom rod hydraulic channel (7055) and a top rod hydraulic channel (7052). The device comprises a rod fluid channel (7056), a bottom rod ring channel (7057), and a top rod ring channel (7058). The bottom rod fluid channel (7055) and the top rod fluid channel (7056) are respectively connected to the inlet ends of the hydraulic bottom rod (7051) and the hydraulic top rod (7052). The bottom rod ring channel (7057) is connected to multiple bottom rod fluid channels (7055), and the top rod ring channel (7058) is connected to multiple top rod fluid channels (7056). An oil station (7059) is installed on the turntable (703). The delivery end of the oil station (7059) is connected to the bottom rod ring channel (7057) and the top rod ring channel (7058) through pipelines.

3. The motor shaft torque transmission stability detection device according to claim 2, characterized in that: The mass distribution module (706) includes a trough (7061), a trough cover (7062), a resistance plate (7063), a passage hole (7064), a slip ring (7065), and a rotating part (7066). The drive unit (705) has a groove (7061) installed at its execution end. A groove cover (7062) is provided at the opening of the groove (7061). Multiple resistance plates (7063) are provided inside the groove (7061). Two adjacent resistance plates (7063) are connected end to end by a rotating part (7066) in a folded shape. The resistance plates (7063) at the top and bottom are connected to the groove cover (7062) and the groove (7061) respectively by the rotating part (7066). A passage hole (7064) is provided on the resistance plate (7063). The hydraulic push rod (7052) passes through the bottom of the groove (7061) and the passage hole (7064) and is fastened to the groove cover (7062). A slip ring (7065) is rotatably installed inside the passage hole (7064). The slip ring (7065) is slidably installed on the hydraulic push rod (7052).

4. The motor shaft torque transmission stability detection device according to claim 1, characterized in that: The clamping component (6) includes a fixing ring (601), a guide groove (602), a slider (603), a clamping head (6031), a locking rod (604), a drive ring (605), an arc-shaped inclined pull groove (606), a bevel gear ring (607), a drive bevel gear (608), a cover (609), and an auxiliary anti-loosening component (610). A fixing ring (601) is installed at the output end of the drive component (4). A guide groove (602) is provided on the fixing ring (601). A slider (603) is slidably installed in the guide groove (602). A locking rod (604) and a clamping head (6031) are installed on the slider (603). A drive ring (605) is rotatably installed on the fixing ring (601). An arc-shaped inclined groove (606) is provided on the drive ring (605). The locking rod (604) is slidably installed in the arc-shaped inclined groove (606). A bevel gear ring (607) is installed on the drive ring (605). A cover (609) is sleeved on the outside of the drive ring (605). An active bevel gear (608) is rotatably installed on the inner wall of the cover (609). The active bevel gear (608) meshes with the bevel gear ring (607). An auxiliary anti-loosening component (610) is provided in the fixing ring (601).

5. The motor shaft torque transmission stability detection device according to claim 4, characterized in that: The auxiliary anti-loosening component (610) includes an annular groove (611), an upper ring tooth (612), a lower ring tooth (613), a cylindrical cavity (614), a piston (615), a connecting rod (616), a liquid storage cavity (617), and a squeezing block (618). An annular groove (611) is provided on the contact surface between the fixed ring (601) and the driving ring (605). A lower ring tooth (613) is slidably installed in the annular groove (611). An upper ring tooth (612) is installed on the driving ring (605). A cylindrical cavity (614) and a liquid storage cavity (617) are provided in the fixed ring (601) below the annular groove (611), and the cylindrical cavity (614) and the liquid storage cavity (617) are interconnected. A piston (615) is slidably installed in the cylindrical cavity (614). The piston (615) is connected to the lower ring tooth (613) through a connecting rod (616). A squeezing block (618) is slidably installed in the liquid storage cavity (617).

6. The motor shaft torque transmission stability detection device according to claim 5, characterized in that: The cylindrical cavity (614) and the piston (615) are connected by a buffer spring (619), as are the liquid storage cavity (617) and the extrusion block (618).

7. The motor shaft torque transmission stability detection device according to claim 1, characterized in that: The coupling (704) is a flexible coupling.

8. The motor shaft torque transmission stability detection device according to claim 1, characterized in that: The platform (2) has a base (1) installed at its bottom. The base (1) has an installation groove (101) and a buffer groove (102). The platform (2) is installed in the installation groove (101), and a buffer component (103) is installed in the buffer groove (102).

9. The motor shaft torque transmission stability detection device according to claim 1, characterized in that: A buffer pad (104) is installed between the contact surface of the platform (2) and the mounting groove (101).

10. The motor shaft torque transmission stability detection device according to claim 3, characterized in that: Spring coils (9) are installed at the acute angles of the two adjacent resistance plates (7063) in their initial state.