Device for testing load life of gear motor

Abstract

The utility model discloses a gear motor load life testing device which comprises a support, a gear motor is arranged on the left side of the top end of the support, a clamping groove is formed in the outer side of a main shaft of the gear motor, a shaft sleeve penetrating through the support is arranged at the right end of the gear motor, and a time controller fixedly connected with the support is arranged at the top end of the shaft sleeve. Through the arrangement of the threaded shaft, the shaft sleeve, the rotating block, a friction block, an electric push rod, a pressure sensor, a sliding block and a time controller, when the device is used for testing the load service life of the gear motor, the time controller controls the electric push rod to start at a specified time point; and the pressure sensor stops until the pressure value sensed by the pressure sensor reaches the specified set range, so that the gear motor performs the load life test under the specified load, the load of the gear motor is adjusted in real time in the operation process of the gear motor, and the operation of the gear motor does not need to be staring at manually, so that the whole test process is simpler and more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of load life testing of reduction motors, in particular to a load life testing device for reduction motors. Background Art

[0002] In order to evaluate the load-bearing capacity and operating stability of the reducer and adjust and optimize the equipment according to the test results, it is necessary to conduct a load life test on the reducer motor. During the test, a certain amount of load is usually loaded on the reducer motor to be tested for a long time, and various data of the reducer motor are monitored in real time. However, in the operation process, the load size of the reducer motor is difficult to adjust in real time during the operation of the reducer motor. The load can only be reloaded after stopping the operation. In addition, the load life test of the reducer motor is a relatively long process. It is impossible to manually watch the operation of the reducer motor, which makes the entire test process very cumbersome and inconvenient. Therefore, a load life test device for a reducer motor is proposed to address the above problems. Utility Model Content

[0003] The technical problem to be solved by the utility model overcomes the existing defects and can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A load life test device for a reduction motor comprises a bracket, a reduction motor with a slot on the outer side of a main shaft is provided on the left side of the top of the bracket, a shaft sleeve is provided on the right end of the reduction motor and passes through the bracket, a time controller fixedly connected to the bracket is provided on the top of the shaft sleeve, a rotating block is fixedly connected to the right end of the outer side of the shaft sleeve, an electric push rod is fixedly connected to the right side of the top inner side of the bracket, a slide plate with a through hole on the outer side is fixedly connected to the bottom end of the electric push rod, a fixed block slidably connected to the bracket is slidably connected to the outer side of the slide plate, a first spring is fixedly connected to the bottom end of the slide plate, and the other end of the first spring is fixedly connected to the fixed block, a slider is slidably connected to the inner bottom end of the fixed block, and the bottom end of the slider contacts a friction block.

[0006] As a further improvement of the utility model, the bottom end of the reduction motor contacts a slide seat, and the slide seat is slidably connected to the bracket. The inner side of the slide seat is spirally connected to a threaded shaft that passes through the slide seat and the bracket, and the threaded shaft is rotatably connected to the bracket.

[0007] As a further improvement of the utility model, a bolt penetrating the reduction motor is fixedly connected to the top of the slide seat, and a nut in close contact with the reduction motor is spirally connected to the outer side of the bolt.

[0008] As a further improvement of the utility model, a bearing is fixedly connected to the outer side of the shaft sleeve, and the bearing is fixedly connected to the bracket.

[0009] As a further improvement of the present invention, a second spring is fixedly connected to one end of the outer side of the slider, the other end of the second spring is fixedly connected to a pressure block in contact with the fixed block, and a pressure sensor in contact with the fixed block is fixedly connected to the outer side of the pressure block.

[0010] As a further improvement of the utility model, the top of the friction block is fixedly connected to a connecting block slidably connected to the slider, the inner side of the slider is fixedly connected to a third spring, the other end of the third spring is fixedly connected to a clamping block slidably connected to the slider, one end of the clamping block is hemispherically arranged, and the hemispherical end of the clamping block is engaged with the connecting block.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. A load life test device for a reduction motor, which is provided with a threaded shaft, a sleeve, a rotating block, a friction block, an electric push rod, a pressure sensor, a slider and a time controller. When the load life of the reduction motor is tested by the device, a plurality of starting time points of the electric push rod and the sensing range of the pressure sensor after the reduction motor reaches a specified load at the corresponding time point are first set by the time controller, and then the threaded shaft is spirally connected with the slide seat to insert the main shaft of the reduction motor into the sleeve, and then the device is started to detect the load life of the reduction motor. At this time, when the first starting time of the electric push rod is reached, the electric push rod will extend, further making the friction block and the rotating block in close contact, and then when the reduction motor drives the rotating block to rotate through the sleeve, the friction between the friction block and the rotating block is matched, the slider will compress the second spring, and the pressure block will press the pressure sensor. When the pressure sensed by the pressure sensor When the pressure value reaches the set first pressure range, the time controller controls the electric push rod to stop. At this time, the load life of the reduction motor is tested under the first load. When the second starting time of the electric push rod is reached, the electric push rod will continue to extend, further increasing the friction between the friction block and the rotating block, until the pressure value sensed by the pressure sensor reaches the set second pressure range. The electric push rod will stop again to test the load life of the reduction motor under the second load. In this cycle, the time controller controls the start of the electric push rod at a specified time point until the pressure value sensed by the pressure sensor reaches the specified setting range and stops, so that the reduction motor is tested for load life under the specified load, realizing real-time adjustment of the load of the reduction motor during its operation, and there is no need to manually watch the reduction motor operation, which makes the entire test process simpler and more convenient.

[0013] 2. A load life test device for a reduction motor, which is equipped with a friction block, a connecting block, a clamping block and a third spring. During the use of the device, when the friction block is severely worn and the load life test of the reduction motor cannot be carried out normally, the electric push rod is first controlled to contract so that the fixed block drives the friction block at the bottom of the slider to move up to the highest point, and then the friction block is pulled down so that the clamping block with a hemispherical shape at one end compresses the third spring and is retracted into the slider, and further the connecting block is made to slide out of the slider, which facilitates the removal of the severely worn friction block for replacement, thereby ensuring the normal progress of the load life test of the reduction motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0015] Figure 1 The utility model is a schematic diagram of the overall structure of a load life test device for a reduction motor.

[0016] Figure 2 The utility model is a cross-sectional structural schematic diagram of a load life test device for a reduction motor.

[0017] Figure 3 The utility model is a schematic diagram of a left-side sectional structure of a load life test device for a reduction motor.

[0018] Figure 4 It is a left-side structural schematic diagram of a shaft sleeve of a load life testing device for a reduction motor according to the utility model.

[0019] Figure 5 The utility model is a cross-sectional structural schematic diagram of a slider of a load life test device for a reduction motor.

[0020] In the figure: 1. bracket; 2. reduction motor; 3. slide seat; 4. threaded shaft; 5. bolt; 6. nut; 7. bushing; 8. bearing; 9. time controller; 10. rotating block; 11. electric push rod; 12. slide plate; 13. fixed block; 14. first spring; 15. slide block; 16. second spring; 17. pressure block; 18. pressure sensor; 19. friction block; 20. connecting block; 21. third spring; 22. clamping block. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with specific implementation methods, wherein the accompanying drawings are only used for exemplary descriptions and represent only schematic diagrams rather than actual drawings, and cannot be understood as limitations on this patent. In order to better illustrate the specific implementation methods of the utility model, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted. Based on the specific implementation methods in the utility model, all other specific implementation methods obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] like Figure 1-5 As shown, a load life test device for a reduction motor comprises a bracket 1, a reduction motor 2 with a slot on the outer side of a main shaft is provided on the left side of the top of the bracket 1, a sleeve 7 penetrating the bracket 1 is provided on the right end of the reduction motor 2, a time controller 9 fixedly connected to the bracket 1 is provided on the top of the sleeve 7, a rotating block 10 is fixedly connected to the right end of the outer side of the sleeve 7, an electric push rod 11 is fixedly connected to the right side of the top of the inside of the bracket 1, a slide plate 12 with a through hole on the outer side is fixedly connected to the bottom end of the electric push rod 11, a fixed block 13 slidably connected to the bracket 1 is slidably connected to the outer side of the slide plate 12, a first spring 14 is fixedly connected to the bottom end of the slide plate 12, and the other end of the first spring 14 is fixedly connected to the fixed block 13, a slider 15 is slidably connected to the inner bottom end of the fixed block 13, and the bottom end of the slider 15 contacts with a friction block 19.

[0024] Example 2

[0025] like Figure 1-2 As shown, in order to solve the problem that it is inconvenient to control the spindles of different lengths of the reduction motor 2 to be inserted into the shaft sleeve 7, the bottom end of the reduction motor 2 is in contact with a slide 3, and the slide 3 is slidably connected to the bracket 1, and the inner side of the slide 3 is spirally connected with a threaded shaft 4 that penetrates the slide 3 and the bracket 1, and the threaded shaft 4 is rotatably connected to the bracket 1. By rotating the threaded shaft 4 and the slide 3, it is convenient to drive the spindles of different lengths of the reduction motor 2 to be inserted into the shaft sleeve 7 through the slide 3.

[0026] Example 3

[0027] like Figure 1-2 As shown, in order to solve the problem of inconvenience in fixing the reduction motor 2 on the top of the slide 3, the top of the slide 3 is fixedly connected with a bolt 5 that penetrates the reduction motor 2, and the outer side of the bolt 5 is spirally connected with a nut 6 that is in close contact with the reduction motor 2. By making the edge of the reduction motor 2 be sleeved on the outer side of the bolt 5, and then rotating the nut 6 to be spirally connected with the bolt 5, it is convenient to fix the reduction motor 2 on the top of the slide 3.

[0028] Example 4

[0029] like Figure 2 and Figure 4 As shown, in order to solve the problem of large friction between the sleeve 7 and the bracket 1 when it rotates, a bearing 8 is fixedly connected to the outer side of the sleeve 7, and the bearing 8 is fixedly connected to the bracket 1. By connecting the sleeve 7 to the bracket 1 through the bearing 8, large friction between the sleeve 7 and the bracket 1 when it rotates is avoided.

[0030] Example 5

[0031] like Figure 3 As shown, in order to solve the problem that it is inconvenient to automatically control the electric push rod 11 to stop when the reduction motor 2 reaches the specified load, one end of the outer side of the slider 15 is fixedly connected to a second spring 16, and the other end of the second spring 16 is fixedly connected to a pressure block 17 in contact with the fixed block 13, and the outer side of the pressure block 17 is fixedly connected to a pressure sensor 18 in contact with the fixed block 13. When the electric push rod 11 reaches the starting time point, the friction force between the friction block 19 and the rotating block 10 is increased by extending the electric push rod 11, and further when the slider 15 compresses the second spring 16 and the pressure block 17 presses the pressure sensor 18, the pressure value sensed by the pressure sensor 18 is increased. When the pressure value sensed by the pressure sensor 18 reaches the set specified range, it is convenient to automatically control the electric push rod 11 to stop when the reduction motor 2 reaches the specified load.

[0032] Example 6

[0033] like Figure 5 As shown, in order to solve the problem that it is inconvenient to replace the friction block 19 when it is severely worn, the top of the friction block 19 is fixedly connected to a connecting block 20 that is slidably connected to the slider 15, and the inner side of the slider 15 is fixedly connected to a third spring 21, and the other end of the third spring 21 is fixedly connected to a clamping block 22 that is slidably connected to the slider 15, one end of the clamping block 22 is hemispherically arranged, and one end of the hemispherically arranged clamping block 22 is engaged with the connecting block 20, and the friction block 19 is pulled down so that the clamping block 22 with one end hemispherically arranged compresses the third spring 21 and is then retracted into the slider 15, and the connecting block 20 is further made to slide out of the slider 15, so that it is convenient to remove the severely worn friction block 19 for replacement.

[0034] In this embodiment, when the load life of the reduction motor 2 is tested by the device, the edge of the load motor 2 is sleeved on the outside of the bolt 5 on the top of the slide 3, and then fixed by the nut 6. After fixing, the threaded shaft 4 is rotated to be spirally connected with the slide 3, so that the slide 3 drives the main shaft of the reduction motor 2 to be inserted into the sleeve 7, and ensure that the protrusion in the sleeve 7 is in the groove outside the main shaft of the reduction motor 2. After completing the above operations, the time controller 9 is used to set multiple starting time points of the electric push rod 11 and the sensing range of the pressure sensor 18 after the reduction motor 2 reaches the specified load at the corresponding time point (here, the load value reached by the reduction motor 2 is the same as the pressure sensor 1 8), after setting, the load life of the reduction motor 2 can be detected by starting the device through the time controller 9. At this time, the reduction motor 2 will drive the rotating block 10 to rotate through the shaft sleeve 7. When the first starting time of the electric push rod 11 is reached, the electric push rod 11 will extend, and then when the friction block 19 contacts the rotating block 10, as the electric push rod 11 continues to extend, the slide plate 12 will continuously compress the first spring 14, and the friction between the friction block 19 and the rotating block 10 will continue to increase. Then the rotating block 10 will control the sliding block 15 to compress the second spring 16 through the friction between the friction block 19, and the pressing block 17 will continuously press the dynamic pressure The force sensor 18 and the pressure value sensed by the pressure sensor 18 will continue to increase. When the pressure value sensed by the pressure sensor 18 reaches the set first pressure range, the time controller 9 will automatically control the electric push rod 11 to stop. At this time, the load life of the reduction motor 2 is tested under the first load. When the second starting time of the electric push rod 11 is reached, the electric push rod 11 will continue to extend, further increasing the friction between the friction block 19 and the rotating block 10, until the pressure value sensed by the pressure sensor 18 reaches the set second pressure range. The electric push rod 11 will stop again, thereby testing the load life of the reduction motor 2 under the second load. The test is carried out in this cycle until the reduction motor 2 completes the life test. During the use of the device, when the friction block 19 is severely worn and the load life test of the reduction motor cannot be carried out normally, the electric push rod 11 is first controlled by the time controller 9 to contract so that the fixed block 13 drives the friction block 19 at the bottom of the slider 15 to move up to the highest point, and then the friction block 19 is pulled down so that the hemispherical clamping block 22 at one end compresses the third spring 21 and is then retracted into the slider 15, and the connecting block 20 is further made to slide out of the slider 15, which facilitates the removal of the severely worn friction block 19 for replacement, thereby ensuring the normal progress of the load life test of the reduction motor 2.

[0035] The above is a preferred implementation mode of the utility model. The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. Technical personnel in this industry should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A load life test device for a reduction motor, comprising a bracket (1), characterized in that: A reduction motor (2) with a slot provided on the outer side of the main shaft is provided on the left side of the top of the bracket (1), a shaft sleeve (7) penetrating the bracket (1) is provided on the right end of the reduction motor (2), a time controller (9) fixedly connected to the bracket (1) is provided on the top of the shaft sleeve (7), a rotating block (10) is fixedly connected to the right end of the outer side of the shaft sleeve (7), an electric push rod (11) is fixedly connected to the right side of the top of the inner top of the bracket (1), a slide plate (12) with a through hole provided on the outer side is fixedly connected to the bottom end of the electric push rod (11), a fixed block (13) slidably connected to the outer side of the slide plate (12) and slidably connected to the bracket (1), a first spring (14) is fixedly connected to the bottom end of the slide plate (12), and the other end of the first spring (14) is fixedly connected to the fixed block (13), a slider (15) is slidably connected to the inner bottom end of the fixed block (13), and the bottom end of the slider (15) contacts a friction block (19).

2. A load life test device for a reduction motor according to claim 1, characterized in that: The bottom end of the reduction motor (2) contacts a slide seat (3), and the slide seat (3) is slidably connected to the bracket (1); the inner side of the slide seat (3) is spirally connected to a threaded shaft (4) that passes through the slide seat (3) and the bracket (1), and the threaded shaft (4) is rotatably connected to the bracket (1).

3. A load life test device for a reduction motor according to claim 2, characterized in that: A bolt (5) penetrating the reduction motor (2) is fixedly connected to the top of the slide seat (3), and a nut (6) in close contact with the reduction motor (2) is spirally connected to the outer side of the bolt (5).

4. The load life test device for a reduction motor according to claim 1, characterized in that: A bearing (8) is fixedly connected to the outer side of the shaft sleeve (7), and the bearing (8) is fixedly connected to the bracket (1).

5. The load life test device for a reduction motor according to claim 1, characterized in that: A second spring (16) is fixedly connected to one end of the outer side of the sliding block (15); a pressure block (17) in contact with the fixed block (13) is fixedly connected to the other end of the second spring (16); and a pressure sensor (18) in contact with the fixed block (13) is fixedly connected to the outer side of the pressure block (17).

6. A load life test device for a reduction motor according to claim 1, characterized in that: The top of the friction block (19) is fixedly connected to a connecting block (20) which is slidably connected to the slider (15); the inner side of the slider (15) is fixedly connected to a third spring (21); the other end of the third spring (21) is fixedly connected to a clamping block (22) which is slidably connected to the slider (15); one end of the clamping block (22) is hemispherically arranged, and one end of the hemispherically arranged clamping block (22) is engaged with the connecting block (20).

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