Testing tool for planetary reducer

Abstract

The invention belongs to the technical field of detection equipment, and particularly relates to a planetary reducer testing tool which comprises a supporting base, a butt joint device is arranged on the left side of the supporting base, a segmented sliding plate is arranged on the right side of the supporting base, and a thrust arm is fixedly connected to the right end of the segmented sliding plate. The top end of the thrust arm is fixedly connected with an input motor, and a test speed reducer is inserted into the outer surface of an output shaft of the input motor. According to the device, the testing speed reducer can be fixed through the supporting base at the bottom, then the outer surface of the motor shell is covered through the upper buckling cover on the upper portion, when a transmission gear sleeve in the testing speed reducer rotates, if transmission is not stable, the motor shell certainly vibrates due to abrasion of the gear sleeve, and therefore the testing speed reducer can be tested. The upper buckling cover can sense slight vibration so as to trigger the pressure sensing cushion cylinders on the two sides, so that an operator can stop the test work in time, an accident that a gear in the speed reducer is broken and fallen is avoided, and the detection safety is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of detection equipment, in particular to a testing tool for a planetary reducer. Background Art

[0002] Planetary reducer is a widely used industrial product that can reduce the speed of the motor and increase the output torque at the same time. Due to the characteristics of planetary gear reducer such as light weight, small size, wide transmission ratio range, high efficiency, stable operation, low noise and strong adaptability, it is widely used in metallurgy, mining, lifting and transportation, electricity, energy, construction and building materials, light industry, transportation and other industrial sectors.

[0003] When designing a planetary reducer, since the gear transmission ratio of the template reducer may deviate, corresponding testing tooling is required to test this unstable reducer. The transmission ratio is directly related to the gear transmission inside the reducer. Therefore, when the transmission machine works unstably, the internal gears will be greatly worn and are prone to breakage and collapse. Therefore, a relatively safe tooling is required for testing. Summary of the invention

[0004] In view of the deficiencies of the prior art, the technical solution adopted by the present invention to solve the technical problems is: a test fixture for a planetary reducer, comprising a support base, a docking device is arranged on the left side of the support base, a segmented slide is arranged on the right side of the support base, a thrust arm is fixedly connected to the right end of the segmented slide, an input motor is fixedly connected to the top of the thrust arm, a test reducer is plugged into the outer surface of the output shaft of the input motor, and stabilizing components are symmetrically arranged on the front and rear sides of the outer surface of the support base; The stabilizing component comprises a fixed top platform, the lower surface of which is symmetrically provided with a segmented sliding rod, the segmented sliding rod is divided into a thick rod sleeve at the bottom and a thin rod in the middle, wherein the thick rod sleeve is slidably connected along the outer surface of the thin rod, the bottom end of the segmented sliding rod is fixedly connected with an upper buckle cover, the middle part of the outer surface of the segmented sliding rod is fixedly connected with a bent connecting arm, the bent connecting arm is sleeved with the thick rod sleeve of the segmented sliding rod through a sleeve ring at the horizontal end, the bottom end of the bent connecting arm is slidably connected with a guide sliding cylinder, and the bottom end of the guide sliding cylinder is fixedly connected with a pressure-sensitive pad cylinder; The support base includes a support box, the bottom of the inner wall of the support box is fixedly connected to a built-in chassis, control rods are symmetrically arranged on both sides of the inner wall of the built-in chassis through guide grooves, the end of the control rod away from the input motor is fixedly connected to a vertical clamping plate, the top of the vertical clamping plate is rotatably connected to a rotating clamping plate on the side close to the input motor, and the side of the rotating clamping plate away from the input motor is fixedly connected to a pressure pad through a built-in spring belt, and when the vertical clamping plates on both sides are pulled close, the rotating clamping plate part will gradually slide out of the arc-shaped cutting groove on the top of the support box.

[0005] Furthermore, the input motor includes a motor housing, a driving shaft is rotatably connected to the axis on the right side of the inner wall of the motor housing, the right end of the driving shaft is fixedly connected to the axis gear sleeve, the outer surface of the axis gear sleeve is evenly provided with driven gear sleeves, the inner wall of the driven gear sleeve is fixedly connected to the driven shaft, the left end of the driven shaft is fixedly connected to the torque plate, and the passive shaft is fixedly connected to the axis on the left side of the outer surface of the torque plate. The working principle of the input motor is as follows: when the driving shaft twists the axis gear sleeve, when the motor housing is fixed, the driven gear sleeve will passively roll along the inner wall of the motor housing, thereby centrally pulling the torque plate through the driven shaft, so the torque plate will have a lower rotation speed than the axis gear sleeve, but the torque force will increase.

[0006] Furthermore, the number of the segmented sliding rods is two, and fixed clamping columns are symmetrically arranged on the front and rear sides of the top of the guide slide, and guide grooves are symmetrically opened on the front and rear sides of the outer surface of the bending connecting arm. The end of the fixed clamping column away from the guide slide is slidably connected to the outer surface of the bending connecting arm through the guide groove, and the top of the guide slide can control the fixed clamping column to slide through the thrust device in the inner cavity, so that the fixed clamping column is inserted into the guide groove to fix the bending connecting arm and the guide slide.

[0007] Furthermore, arc-shaped grooves are evenly formed on the top of the inner cavity of the support box, the top of the vertical clamp is slidably connected to the inner cavity of the support box through the arc-shaped grooves, the outer surface of the rotating clamp is pressed against the outer surface of the motor housing, and the bottom of the vertical clamp is slidably connected to the inner wall of the built-in chassis through the slide groove. The outer surface of the output shaft of the input motor is plugged into the right end of the outer surface of the active shaft through the plug sleeve, the upper surface of the fixed top platform is fixedly connected to the ceiling, the lower surface of the upper buckle cover is pressed against the outer surface of the motor housing, and the outer surface of the torque disc is rotatably connected to the left side of the inner wall of the motor housing.

[0008] Further, the docking device includes a receiving frame, a hollow groove is provided at the top of the inner cavity of the receiving frame, a connecting shaft is rotatably connected at the axis center of the hollow groove, a torsion drum is rotatably connected to the left end of the connecting shaft, a winding belt is evenly provided in the middle of the outer surface of the connecting shaft, a pressing element is evenly provided on the right side of the outer surface of the torsion drum, and a sleeve device is provided on the right side of the top of the receiving frame. The sleeve device includes a docking sleeve, a receiving sleeve ring is rotatably connected to the middle of the inner cavity of the docking sleeve through a transfer groove, a drainage port is provided at the bottom of the inner cavity of the receiving sleeve ring, and a pressure pump is fixedly connected to the lower surface of the receiving sleeve ring through the drainage port, a sliding pressure rod is evenly provided on the side of the inner cavity of the docking sleeve away from the connecting shaft, and an inner sealing membrane is fixedly connected to the side of the inner wall of the docking sleeve close to the sliding pressure rod.

[0009] Furthermore, the right end of the connecting shaft extends to the inner wall of the docking sleeve through the through hole, and the right end of the connecting shaft is fixedly connected to the axis of the inner wall of the docking sleeve, the left end of the passive shaft is plugged into the right side of the inner wall of the docking sleeve, and the outer surface of the sliding pressure rod is slidably connected to the inner cavity of the docking sleeve. The right end of the pressing element extends to the outside of the docking sleeve through the through hole, and the right end of the pressing element and the left end of the passive shaft are pressed against each other, the left side of the outer surface of the docking sleeve is fixedly connected to the axis of the top of the receiving frame, the bottom end of the receiving frame is fixedly connected to the bottom of the inner cavity of the support box through a connecting wire, the bottom end of the winding belt is rotationally connected to the inner cavity of the receiving frame, and the outer surface of the torsion drum is fixedly connected to the outer surface of the receiving frame.

[0010] The beneficial effects of the present invention are as follows: 1. The device can fix the test reducer through the support base at the bottom, and then cover the outer surface of the motor housing through the upper buckle cover. When the transmission gear sleeve inside the test reducer rotates, if there is a problem of unstable transmission, the motor housing will inevitably vibrate due to the wear of the gear sleeve. The buckle cover will feel a slight vibration and trigger the pressure-sensitive pads on both sides, so that the operator can terminate the test work in time to avoid the accident of the gear inside the reducer breaking and flying, thereby improving the safety of the detection.

[0011] 2. The support base can fix test reducers of different sizes. The vertical clamping plates are pulled by the control rods on both sides to clamp the test reducer. According to the principle that the test reducer exerts an extrusion force on the rotating clamping plates, the pressure value of the pressure pad is preset to ensure that the vertical clamping plates can not only clamp the test reducer, but also avoid the problem of the reducer being damaged due to excessive clamping force.

[0012] 3. The output end of the passive shaft will be inserted into the interior of the socket device. In order to avoid slipping between the passive shaft and the inner wall of the docking sleeve, and to ensure that the docking sleeve can adapt to different types of passive shafts, the docking sleeve is designed with a larger flare, and the docking sleeve will clamp and fix the passive shaft through the internal sliding pressure rod, so that the docking sleeve can be quickly separated from the passive shaft during operation, protecting the unstable passive shaft inside the docking sleeve, and preventing the passive shaft from being disconnected due to excessive torque force, resulting in safety accidents.

[0013] 4. The torque drum can hinder the twisting of the connecting shaft by increasing the resistance. Since the torque force output by the passive shaft of the reducer is large, the output torque force of the test reducer can be detected within an appropriate threshold. The torque drum can also be used to perform emergency braking on the reducer to eliminate the phenomenon of continued deflection of the reducer due to inertia after power failure, so as to quickly and stably test the reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3 It is a schematic diagram of the structure of the stabilizing component of the present invention; Figure 4 is a cross-sectional view of the support base of the present invention; Figure 5 is a cross-sectional view of a test reducer of the present invention; Figure 6 is a cross-sectional view of a docking device of the present invention; Figure 7 It is a cross-sectional view of the sleeve device of the present invention.

[0015] In the figure: 1, support base; 2, segmented slide; 3, thrust arm; 4, input motor; 5, docking equipment; 6, stabilizing components; 7, test reducer; 61, fixed top platform; 62, segmented slide bar; 63, buckle cover; 64, bending connecting arm; 65, guide slide cylinder; 66, fixed clamping column; 67, pressure-sensitive pad cylinder; 11, support box; 12, built-in chassis; 13, control pull rod; 14, vertical clamp plate; 15, rotating clamp plate; 16, pressure pad plate; 71. Motor housing; 72. Driving shaft; 73. Axial gear sleeve; 74. Driven gear sleeve; 75. Driven shaft; 76. Torque plate; 77. Passive shaft; 51. Receiving frame; 52. Hollow groove; 53. Torque cylinder; 54. Connecting shaft; 55. Winding belt; 56. Pressing element; 57. Pressure pump; 8. Socketing equipment; 81. Docking sleeve; 82. Receiver ring; 83. Drainage port; 84. Sliding pressure rod; 85. Inner sealing membrane. DETAILED DESCRIPTION

[0016] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0017] Example 1, please refer to Figure 1-Figure 5The present invention provides a technical solution: a test fixture for a planetary reducer, comprising a support base 1, a docking device 5 is arranged on the left side of the support base 1, a segmented slide 2 is arranged on the right side of the support base 1, a thrust arm 3 is fixedly connected to the right end of the segmented slide 2, an input motor 4 is fixedly connected to the top of the thrust arm 3, a test reducer 7 is plugged into the outer surface of the output shaft of the input motor 4, and a stabilizing component 6 is symmetrically arranged on the front and rear sides of the outer surface of the support base 1; The stabilizing component 6 includes a fixed top platform 61, and a segmented sliding rod 62 is symmetrically arranged on the lower surface of the fixed top platform 61. The segmented sliding rod 62 is divided into a thick rod sleeve at the bottom and a thin rod in the middle, wherein the thick rod sleeve is slidably connected along the outer surface of the thin rod, and the bottom end of the segmented sliding rod 62 is fixedly connected to an upper buckle cover 63, and the middle part of the outer surface of the segmented sliding rod 62 is fixedly connected to a bent connecting arm 64, and the bent connecting arm 64 is sleeved with the thick rod sleeve of the segmented sliding rod 62 through a sleeve ring at the horizontal end, and the bottom end of the bent connecting arm 64 is slidably connected to a guide slide 65, and the bottom end of the guide slide 65 is fixedly connected to a pressure-sensitive pad 67; The supporting base 1 includes a support box 11, and the bottom of the inner wall of the support box 11 is fixedly connected to a built-in chassis 12, and control rods 13 are symmetrically arranged on both sides of the inner wall of the built-in chassis 12 through guide grooves, and the end of the control rod 13 away from the input motor 4 is fixedly connected to a vertical clamping plate 14, and the top of the vertical clamping plate 14 is rotatably connected to a rotating clamping plate 15 on the side close to the input motor 4, and the side of the rotating clamping plate 15 away from the input motor 4 is fixedly connected to a pressure pad 16 through a built-in spring belt. When the vertical clamping plates 14 on both sides are pulled closer, the rotating clamping plate 15 will gradually slide out of the arc-shaped groove at the top of the support box 11.

[0018] The input motor 4 includes a motor housing 71, a driving shaft 72 is rotatably connected to the axis center on the right side of the inner wall of the motor housing 71, a shaft gear sleeve 73 is fixedly connected to the right end of the driving shaft 72, a driven gear sleeve 74 is evenly arranged on the outer surface of the shaft gear sleeve 73, a driven shaft 75 is fixedly connected to the inner wall of the driven gear sleeve 74, a torque plate 76 is fixedly connected to the left end of the driven shaft 75, and a passive shaft 77 is fixedly connected to the axis center on the left side of the outer surface of the torque plate 76. The working principle of the input motor 4 is as follows: when the driving shaft 72 twists the shaft gear sleeve 73, when the motor housing 71 is fixed, the driven gear sleeve 74 will passively roll along the inner wall of the motor housing 71, thereby centrally pulling the torque plate 76 through the driven shaft 75, so the rotation speed of the torque plate 76 will be lower than that of the shaft gear sleeve 73, but the torque force will be increased.

[0019] There are two segmented slide rods 62, and fixed clamping columns 66 are symmetrically arranged on the front and rear sides of the top of the guide slide 65, and guide grooves are symmetrically opened on the front and rear sides of the outer surface of the bending connecting arm 64. The end of the fixed clamping column 66 away from the guide slide 65 is slidably connected to the outer surface of the bending connecting arm 64 through the guide groove. The top of the guide slide 65 can control the fixed clamping column 66 to slide through the thrust device in the inner cavity, so that the fixed clamping column 66 is inserted into the guide groove to fix the bending connecting arm 64 and the guide slide 65.

[0020] The top of the inner cavity of the support box 11 is evenly provided with arc-shaped grooves, the top of the vertical clamping plate 14 is slidably connected with the inner cavity of the support box 11 through the arc-shaped grooves, the outer surface of the rotating clamping plate 15 and the outer surface of the motor housing 71 are pressed against each other, and the bottom end of the vertical clamping plate 14 is slidably connected with the inner wall of the built-in chassis 12 through the slide groove. The outer surface of the output shaft of the input motor 4 is plugged into the right end of the outer surface of the active shaft 72 through the plug sleeve, the upper surface of the fixed top platform 61 is fixedly connected with the ceiling, the lower surface of the upper buckle cover 63 and the outer surface of the motor housing 71 are pressed against each other, and the outer surface of the torque plate 76 is rotatably connected with the left side of the inner wall of the motor housing 71.

[0021] When using the device to test the reducer, the reducer is placed in the groove of the support base 1, and then the support base 1 stretches the control rod 13 through the built-in chassis 12 at the bottom of the inner wall, and then the vertical clamps 14 on both sides clamp the outer surface of the motor housing 71. At this time, the rotating clamp 15 is deflected to the side close to the pressure pad 16 under the reaction force of the motor housing 71, and the pressure pad 16 is pressed by the spring. After the predetermined pressure value of the pressure pad 16 is triggered, it means that the test reducer 7 is fixed and clamped.

[0022] After the test reducer 7 is fixed, the upper fixed top platform 61 lowers the upper buckle cover 63 by pushing the segmented slide rod 62, so that the upper buckle cover 63 is placed on the outer surface of the motor housing 71, and then guides the fixed clamping columns 66 on both sides of the top of the slide cylinder 65 to be inserted into the slide groove of the bent connecting arm 64, fixing the bent connecting arm 64 in the initial position, and then releases the locking effect of the fixed clamping column 66. After completing the preparation work, the segmented slide plate 2 on the right is pulled to the left, the output shaft of the input motor 4 is inserted into the active rotating shaft 72, and the right end of the docking device 5 is inserted into the passive rotating shaft 77. Then the input motor 4 twists the active rotating shaft 72, and drives the torque disk 76 to rotate through the transmission of the axial gear sleeve 73 and the driven gear sleeve 74. Then the passive rotating shaft 77 outputs torque in the form of deceleration, thereby forming a deceleration effect.

[0023] When the transmission gear sleeve inside the test reducer 7 rotates, if there is a problem of unstable transmission, the upper buckle cover 63 above will jump due to the vibration of the motor housing 71, thereby driving the bent connecting arm 64 to slide along the inner wall of the guide slide 65, and then triggering the pressure-sensitive pad tube 67 at the bottom, and then feedback to the operator through the display screen on the outer surface of the pressure-sensitive pad tube 67, so that the operator can terminate the test work in time.

[0024] Example 2, please refer to Figure 1-Figure 5 The present invention provides a technical solution: on the basis of embodiment 1, a docking device 5 comprises a receiving frame 51, a hollow groove 52 is provided at the top of the inner cavity of the receiving frame 51, a connecting shaft 54 ​​is rotatably connected to the axis of the hollow groove 52, a torque drum 53 is rotatably connected to the left end of the connecting shaft 54, a winding belt 55 is evenly arranged in the middle of the outer surface of the connecting shaft 54, a pressing element 56 is evenly arranged on the right side of the outer surface of the torque drum 53, and a socket device 8 is arranged on the right side of the top of the receiving frame 51. The sleeve device 8 includes a docking sleeve 81, the middle part of the inner cavity of the docking sleeve 81 is rotatably connected to a receiving ring 82 through a transfer groove, a drainage port 83 is opened at the bottom of the inner cavity of the receiving ring 82, and the lower surface of the receiving ring 82 is fixedly connected to a pressure pump 57 through the drainage port 83, and sliding pressure rods 84 are evenly arranged on the side of the inner cavity of the docking sleeve 81 away from the connecting shaft 54, and an inner sealing membrane 85 is fixedly connected to the side of the inner wall of the docking sleeve 81 close to the sliding pressure rod 84.

[0025] The right end of the connecting shaft 54 ​​extends to the inner wall of the docking sleeve 81 through the through hole, and the right end of the connecting shaft 54 ​​is fixedly connected to the axis of the inner wall of the docking sleeve 81, the left end of the passive shaft 77 is plugged into the right side of the inner wall of the docking sleeve 81, and the outer surface of the sliding pressure rod 84 is slidably connected to the inner cavity of the docking sleeve 81. The right end of the pressing element 56 extends to the outside of the docking sleeve 81 through the through hole, and the right end of the pressing element 56 and the left end of the passive shaft 77 are pressed against each other, the left side of the outer surface of the docking sleeve 81 is fixedly connected to the axis of the top of the receiving frame 51, the bottom end of the receiving frame 51 is fixedly connected to the bottom of the inner cavity of the tray 11 through the connecting wire, the bottom end of the winding belt 55 is rotatably connected to the inner cavity of the receiving frame 51, and the outer surface of the torsion drum 53 is fixedly connected to the outer surface of the receiving frame 51.

[0026] When the passive rotating shaft 77 is inserted into the axis of the docking sleeve 81, the pressure pump 57 located at the bottom pressurizes the interior of the docking sleeve 81 through the drainage port 83. At this time, the inner sealing film 85 will push the sliding pressure rod 84 to the side that fits the passive rotating shaft 77 due to the pressure, so that the sliding pressure rod 84 and the outer surface of the passive rotating shaft 77 are pressed against each other, thereby fixing the passive rotating shaft 77.

[0027] The end face of the passive shaft 77 will fit with the flared inner wall of the docking sleeve 81, and then the pressing element 56 will be squeezed to the left to ensure that the passive shaft 77 is fully inserted into the interior of the docking sleeve 81. When the passive shaft 77 is twisted, the passive shaft 77 will directly drive the sleeve on the right side of the docking sleeve 81 to rotate, and then the sleeve on the right side of the docking sleeve 81 will rotate relative to the receiving ring 82. At the same time, the shaft of the torque drum 53 is twisted by the connecting shaft 54. When the connecting shaft 54 ​​rotates, it will directly drive the speed measuring wheel at the bottom of the receiving frame 51 through the winding belt 55 to detect the real-time rotation speed of the passive shaft 77.

[0028] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A test fixture for a planetary reducer, comprising a support base (1), a docking device (5) being arranged on the left side of the support base (1), a segmented slide (2) being arranged on the right side of the support base (1), a thrust arm (3) being fixedly connected to the right end of the segmented slide (2), an input motor (4) being fixedly connected to the top end of the thrust arm (3), a test reducer (7) being plugged into the outer surface of the output shaft of the input motor (4), and stabilizing components (6) being symmetrically arranged on the front and rear sides of the outer surface of the support base (1), characterized in that: The stabilizing component (6) comprises a fixed top platform (61), a segmented sliding rod (62) is symmetrically arranged on the lower surface of the fixed top platform (61), the bottom end of the segmented sliding rod (62) is fixedly connected to an upper buckle cover (63), a bent connecting arm (64) is fixedly connected to the middle of the outer surface of the segmented sliding rod (62), the bottom end of the bent connecting arm (64) is slidably connected to a guide sliding cylinder (65), and the bottom end of the guide sliding cylinder (65) is fixedly connected to a pressure-sensitive pad cylinder (67); The support base (1) comprises a support box (11), the bottom of the inner wall of the support box (11) is fixedly connected to a built-in chassis (12), both sides of the inner wall of the built-in chassis (12) are symmetrically provided with control rods (13) through guide grooves, the end of the control rod (13) away from the input motor (4) is fixedly connected to a vertical clamping plate (14), the top of the vertical clamping plate (14) is rotatably connected to a rotating clamping plate (15) on the side close to the input motor (4), and the side of the rotating clamping plate (15) away from the input motor (4) is fixedly connected to a pressure pad (16) through a built-in spring belt.

2. The planetary reducer test fixture according to claim 1, characterized in that: The input motor (4) comprises a motor housing (71), a driving shaft (72) being rotatably connected to the axis center of the right side of the inner wall of the motor housing (71), a shaft center gear sleeve (73) being fixedly connected to the right end of the driving shaft (72), a driven gear sleeve (74) being evenly arranged on the outer surface of the shaft center gear sleeve (73), a driven shaft (75) being fixedly connected to the inner wall of the driven gear sleeve (74), a torque disc (76) being fixedly connected to the left end of the driven shaft (75), and a driven shaft (77) being fixedly connected to the axis center of the left side of the outer surface of the torque disc (76).

3. The planetary reducer test fixture according to claim 2, characterized in that: The number of the segmented slide bars (62) is two, and fixed clamping columns (66) are symmetrically arranged on the front and rear sides of the top of the guide slide cylinder (65), and guide sliding grooves are symmetrically opened on the front and rear sides of the outer surface of the bending connecting arm (64), and one end of the fixed clamping column (66) away from the guide slide cylinder (65) is slidably connected to the outer surface of the bending connecting arm (64) through the guide sliding groove.

4. The planetary reducer test fixture according to claim 1, characterized in that: The top of the inner cavity of the support box (11) is evenly provided with arc-shaped grooves, the top of the vertical clamping plate (14) is slidably connected to the inner cavity of the support box (11) through the arc-shaped groove, the outer surface of the rotating clamping plate (15) and the outer surface of the motor housing (71) are pressed against each other, and the bottom end of the vertical clamping plate (14) is slidably connected to the inner wall of the built-in chassis (12) through a sliding groove.

5. The planetary reducer test fixture according to claim 4, characterized in that: The outer surface of the output shaft of the input motor (4) is plugged into the right end of the outer surface of the driving shaft (72) via a plug sleeve, the upper surface of the fixed top platform (61) is fixedly connected to the ceiling, the lower surface of the upper buckle cover (63) and the outer surface of the motor housing (71) are pressed against each other, and the outer surface of the torque plate (76) is rotationally connected to the left side of the inner wall of the motor housing (71).

6. The planetary reducer test fixture according to claim 2, characterized in that: The docking device (5) comprises a receiving frame (51), the top of the inner cavity of the receiving frame (51) is provided with a hollow groove (52), the axis of the hollow groove (52) is rotatably connected to a connecting shaft (54), the left end of the connecting shaft (54) is rotatably connected to a torsion drum (53), a winding belt (55) is evenly arranged in the middle of the outer surface of the connecting shaft (54), a pressing element (56) is evenly arranged on the right side of the outer surface of the torsion drum (53), and a sleeve device (8) is arranged on the right side of the top of the receiving frame (51).

7. The planetary reducer test fixture according to claim 6, characterized in that: The sleeve connection device (8) comprises a docking sleeve (81), the middle part of the inner cavity of the docking sleeve (81) is rotatably connected to a receiving sleeve ring (82) via a transition groove, a drainage port (83) is provided at the bottom of the inner cavity of the receiving sleeve ring (82), and a pressure pump (57) is fixedly connected to the lower surface of the receiving sleeve ring (82) via the drainage port (83), sliding pressure rods (84) are evenly arranged on the side of the inner cavity of the docking sleeve (81) away from the connecting shaft (54), and an inner sealing membrane (85) is fixedly connected to the side of the inner wall of the docking sleeve (81) close to the sliding pressure rod (84).

8. The planetary reducer test fixture according to claim 7, characterized in that: The right end of the connecting shaft (54) extends through the through opening to the inner wall of the docking sleeve (81), and the right end of the connecting shaft (54) is fixedly connected to the axis of the inner wall of the docking sleeve (81), the left end of the passive shaft (77) is plugged into the right side of the inner wall of the docking sleeve (81), and the outer surface of the sliding pressure rod (84) is slidably connected to the inner cavity of the docking sleeve (81).

9. The planetary reducer test fixture according to claim 8, characterized in that: The right end of the pressing element (56) extends to the outside of the docking sleeve (81) through the through opening, and the right end of the pressing element (56) and the left end of the passive rotating shaft (77) are pressed against each other. The left side of the outer surface of the docking sleeve (81) is fixedly connected to the axis of the top of the receiving frame (51). The bottom end of the receiving frame (51) is fixedly connected to the bottom of the inner cavity of the supporting box (11) through a connecting wire. The bottom end of the winding belt (55) is rotationally connected to the inner cavity of the receiving frame (51). The outer surface of the torsion rotating cylinder (53) is fixedly connected to the outer surface of the receiving frame (51).

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