Testing device for dynamic balance of planetary reducer

By using the design of sliding sleeve and positioning ring, the gear is automatically clamped and the influence of the rotating shaft is eliminated by vibration sensor, which solves the problem of cumbersome installation in planetary reducer gear testing device and improves testing efficiency and accuracy.

CN224019218UActive Publication Date: 2026-03-20SHENZHEN ZHONGZHENG PRECISION ELECTROMECHANICAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-17
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

In existing planetary gear reducer testing devices, the gear installation and disassembly process is cumbersome, which affects the testing efficiency.

Method used

The device employs a sliding sleeve, positioning ring, and rotating shaft design. A cylinder drives the sliding sleeve to move and automatically clamp the test gear. A motor drives the rotating shaft to rotate, and data is collected by first and second vibration sensors. The influence of the rotating shaft is eliminated, thus achieving dynamic balance testing.

Benefits of technology

It enables rapid installation and removal of gears, improves testing efficiency, accurately calculates dynamic balance, eliminates the influence of rotating shafts, and improves testing accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of speed reducers, in particular to a testing device for dynamic balance of a planetary speed reducer. Comprising a supporting seat, a first mounting plate, a second mounting plate, a motor, a cylinder, a sliding sleeve and the like, a first mounting plate and a second mounting plate are arranged on the left and right parts of the upper side of the supporting seat respectively, an air cylinder is mounted on the first mounting plate, a piston of the air cylinder penetrates through the first mounting plate and is connected with a sliding sleeve, a motor is mounted on the second mounting plate, an output shaft of the motor is connected with a rotating shaft, and a positioning ring is arranged on the rotating shaft; and a detection mechanism is arranged on the second mounting plate. Through the design of the sliding sleeve, the positioning ring and the rotating shaft, after the rotating shaft is sleeved with the test gear, the air cylinder drives the sliding sleeve to move, the test gear can be automatically clamped and fixed, the motor is started to drive the rotating shaft to rotate, and then the detection mechanism tests dynamic balance parameters of the test gear.
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Description

Technical Field

[0001] This utility model relates to the field of speed reducer technology, and in particular to a testing device for planetary speed reducer dynamic balancing. Background Technology

[0002] Planetary gear reducers, as key transmission components, are widely used in various types of mechanical equipment. Their performance directly affects the overall working efficiency and service life of the machine. Dynamic balance performance is one of the important indicators for measuring the quality of planetary gear reducers. Due to the special nature of gear components, they usually need to be fixed on a specific shaft for dynamic balance testing.

[0003] Some existing testing devices typically use bolts to directly mount the gears onto the surface of the testing shaft when fixing them. This fixing method leads to cumbersome installation and disassembly processes and reduces testing efficiency. Utility Model Content

[0004] To overcome the drawback of cumbersome gear installation, this utility model provides a testing device for planetary deceleration motor balancing.

[0005] The technical implementation scheme of this utility model is as follows: a test device for planetary deceleration motor balancing, comprising a support base, a first mounting plate, a second mounting plate, a motor, a cylinder, a sliding sleeve, a positioning ring, a test gear, a detection mechanism, and a rotating shaft. The support base has a first mounting plate and a second mounting plate respectively on its upper left and right sides. A cylinder is mounted on the first mounting plate, and the piston of the cylinder passes through the first mounting plate and connects to the sliding sleeve. A motor is mounted on the second mounting plate, and the output shaft of the motor is connected to the rotating shaft. A positioning ring is provided on the rotating shaft, and a test gear is slidably mounted on the rotating shaft. A detection mechanism is provided on the second mounting plate.

[0006] Furthermore, it is particularly preferred that the detection mechanism includes a first vibration sensor, a second vibration sensor, a control system, and a connecting mechanism. The first vibration sensor and the second vibration sensor are respectively provided on the side of the positioning ring and the test gear. The control system is provided on the support base. The first vibration sensor and the second vibration sensor are connected to the control system through the connecting mechanism.

[0007] Furthermore, it is particularly preferred that the connecting mechanism includes a conductive slip ring, a rotating ring, and a wire. The conductive slip ring is fixedly mounted on the second mounting plate, and the side of the conductive slip ring is a rotating ring. The rotating ring is fixedly connected to the rotating shaft. Sensor wires are connected between the first vibration sensor and the second vibration sensor and the rotating ring of the conductive slip ring. A wire is connected between the conductive slip ring and the control system.

[0008] Furthermore, it is particularly preferred that the sliding sleeve and the positioning ring each have a buffer pad at their opposite ends.

[0009] Furthermore, it is particularly preferred that the distance from the positioning ring to the end of the rotating shaft near the sliding sleeve is less than the length inside the sliding sleeve.

[0010] Furthermore, it is particularly preferred that the shape and size of the inside of the sliding sleeve are exactly matched with the rotating shaft.

[0011] Beneficial effects: 1. Through the design of sliding sleeve, positioning ring and rotating shaft, the test gear is sleeved on the rotating shaft. After the cylinder drives the sliding sleeve to move, the test gear can be automatically clamped and fixed. The motor starts to drive the rotating shaft to rotate, and then the detection mechanism tests the dynamic balance parameters of the test gear.

[0012] 2. This utility model collects the vibration data of the positioning ring and the test gear through the first vibration sensor and the second vibration sensor respectively, and transmits the data to the control system. This can effectively eliminate the influence of the rotating shaft, thereby accurately calculating the dynamic balance state of the test gear. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a three-dimensional structural diagram of the rotating ring, positioning ring, and test gear of this utility model.

[0015] Figure 3 This is a three-dimensional structural diagram of the motor, control system, and mounting plate of this utility model.

[0016] Figure 4 This is a three-dimensional structural diagram of the positioning ring, vibration sensor, and test gear of this utility model.

[0017] The labels in the diagram are as follows: 1_Support base, 2_First mounting plate, 3_Second mounting plate, 4_Motor, 5_Cylinder, 6_Sliding sleeve, 7_Conductive slip ring, 8_Rotating ring, 9_Positioning ring, 10_Test gear, 11_First vibration sensor, 12_Second vibration sensor, 13_Wire, 14_Control system, 15_Rotating shaft. Detailed Implementation

[0018] References to embodiments herein mean that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0019] A testing device for planetary deceleration and balancing, such as Figures 1-4As shown, the device includes a support base 1, a first mounting plate 2, a second mounting plate 3, a motor 4, a cylinder 5, a sliding sleeve 6, a positioning ring 9, a test gear 10, a detection mechanism, and a rotating shaft 15. The support base 1 has a first mounting plate 2 and a second mounting plate 3 on its upper left and right sides, respectively. The cylinder 5 is mounted on the first mounting plate 2, and the piston of the cylinder 5 passes through the first mounting plate 2 and connects to the sliding sleeve 6. The motor 4 is mounted on the second mounting plate 3, and the output shaft of the motor 4 passes through the second mounting plate 3 and connects to the rotating shaft 15. The sliding sleeve 6 and the rotating shaft 15 are aligned. The rotating shaft 15 has a positioning ring 9 and a test gear 10 that slides on the rotating shaft 15. The second mounting plate 3 has a detection mechanism.

[0020] In use, the test gear 10 is fitted onto the rotating shaft 15 until it contacts the positioning ring 9. Then, the cylinder 5 drives the sliding sleeve 6 to move. The sliding sleeve 6 is fitted onto the rotating shaft 15 and contacts the test gear 10. The sliding sleeve 6 and the positioning ring 9 together clamp the test gear 10. Then, the motor 4 starts and drives the rotating shaft 15 to rotate. The rotating shaft 15 drives the positioning ring 9 and the test gear 10 to rotate. At this time, the detection mechanism detects the test gear 10.

[0021] like Figures 2-4 As shown, the testing mechanism includes a first vibration sensor 11, a second vibration sensor 12, a control system 14, and a connecting mechanism. The first vibration sensor 11 and the second vibration sensor 12 are respectively provided on the side of the positioning ring 9 and the test gear 10. The control system 14 is provided on the support base 1. The first vibration sensor 11 and the second vibration sensor 12 are connected to the control system 14 through the connecting mechanism. When the test gear 10 rotates, the first vibration sensor 11 and the second vibration sensor 12 collect the vibration of the positioning ring 9 and the test gear 10 respectively, and transmit the data to the control system 14 through the connecting mechanism. The control system 14 eliminates the influence of the rotating shaft 15 based on the detection results of the first vibration sensor 11 and the second vibration sensor 12, thereby calculating the dynamic balance test result of the test gear 10.

[0022] like Figures 2-4 As shown, the connecting mechanism includes a conductive slip ring 7, a rotating ring 8, and a wire 13. The conductive slip ring 7 is fixedly mounted on the second mounting plate 3. The rotating ring 8 is located on the side of the conductive slip ring 7. The rotating ring 8 is fixedly connected to the rotating shaft 15. Sensor wires are connected between the first vibration sensor 11 and the second vibration sensor 12 and the rotating ring 8 of the conductive slip ring 7. The wire 13 is connected between the conductive slip ring 7 and the control system 14. When the test gear 10 rotates, the rotating ring 8, the first vibration sensor 11, the second vibration sensor 12, and other components rotate synchronously to prevent the sensor wires from getting tangled.

[0023] Both the sliding sleeve 6 and the positioning ring 9 have buffer pads at their opposite ends. The buffer pads can reduce the impact on the test gear 10 or the rotating shaft 15 during clamping, protect the equipment, and ensure that the clamping is stable.

[0024] The distance from the positioning ring 9 to the end of the rotating shaft 15 near the sliding sleeve 6 is less than the length inside the sliding sleeve 6, ensuring that the sliding sleeve 6 can completely cover the test gear 10 and avoid gaps during clamping.

[0025] The shape and size of the sliding sleeve 6 are perfectly matched with the rotating shaft 15. The precise matching between the sliding sleeve 6 and the rotating shaft 15 ensures that it slides smoothly along the axis of the rotating shaft 15, avoiding offset or jamming caused by shape mismatch, ensuring the reliability of the clamping action, reducing vibration and shaking, and improving the accuracy of the test.

[0026] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.

Claims

1. A testing device for planetary deceleration dynamic balancing, comprising a support base (1), characterized in that: It also includes a first mounting plate (2), a second mounting plate (3), a motor (4), a cylinder (5), a sliding sleeve (6), a positioning ring (9), a test gear (10), a detection mechanism, and a rotating shaft (15). The support base (1) has a first mounting plate (2) and a second mounting plate (3) on its upper left and right sides, respectively. A cylinder (5) is mounted on the first mounting plate (2). The piston of the cylinder (5) passes through the first mounting plate (2) and connects to the sliding sleeve (6). A motor (4) is mounted on the second mounting plate (3). The output shaft of the motor (4) is connected to the rotating shaft (15). A positioning ring (9) is provided on the rotating shaft (15). A test gear (10) is slidably provided on the rotating shaft (15). A detection mechanism is provided on the second mounting plate (3).

2. The testing device for planetary deceleration maneuver balancing according to claim 1, characterized in that: The testing mechanism includes a first vibration sensor (11), a second vibration sensor (12), a control system (14), and a connecting mechanism. The first vibration sensor (11) and the second vibration sensor (12) are respectively provided on the side of the positioning ring (9) and the test gear (10). The control system (14) is provided on the support base (1). The first vibration sensor (11) and the second vibration sensor (12) are connected to the control system (14) through the connecting mechanism.

3. A testing device for planetary deceleration maneuver balancing according to claim 2, characterized in that: The connecting mechanism includes a conductive slip ring (7), a rotating ring (8), and a wire (13). The conductive slip ring (7) is fixedly mounted on the second mounting plate (3). The side of the conductive slip ring (7) is the rotating ring (8). The rotating ring (8) is fixedly connected to the rotating shaft (15). The first vibration sensor (11) and the second vibration sensor (12) are connected to the rotating ring (8) of the conductive slip ring (7) by a sensor wire. The conductive slip ring (7) is connected to the control system (14) by a wire (13).

4. A testing device for planetary deceleration maneuver balancing according to claim 3, characterized in that: Both the sliding sleeve (6) and the positioning ring (9) have buffer pads at their opposite ends.

5. A testing device for planetary deceleration maneuver balancing according to claim 4, characterized in that: The distance from the positioning ring (9) to the end of the rotating shaft (15) near the sliding sleeve (6) is less than the length inside the sliding sleeve (6).

6. A testing device for planetary deceleration maneuver balancing according to claim 5, characterized in that: The shape and size of the inside of the sliding sleeve (6) are exactly matched with the rotating shaft (15).