Harmonic reducer accelerated life testing device

Abstract

The utility model relates to the technical field of harmonic reducer accelerated life testing devices, and discloses a harmonic reducer accelerated life testing device, which comprises a shell, temperature simulation equipment, a closed disc, guide arms and a servo motor, the temperature simulation equipment is assembled at the top of the shell, and the guide arms are assembled on two sides in the shell. The sealing disc is assembled outside the guide arm, the servo motor is assembled on the left side of the sealing disc, a limiting groove is formed outside the sealing disc, a sealing ring is assembled on the right side of the sealing disc, and a sealing mechanism is embedded in the left side of the shell. According to the accelerated life testing device for the harmonic speed reducer, the situation that the harmonic speed reducer cannot perform temperature fit transmission with the servo motor and the swing arm due to the fact that the closed disc moves when the harmonic speed reducer is tested is avoided, meanwhile, the closed disc and the shell are sealed, excessive change of the temperature in the shell is avoided, and the service life of the harmonic speed reducer is prolonged. Therefore, the accelerated life test data of the harmonic speed reducer is prevented from being influenced by temperature change.

Description

Technical Field

[0001] The utility model relates to the technical field of accelerated life test devices for harmonic reducers, and specifically relates to an accelerated life test device for harmonic reducers. Background Technique

[0002] A harmonic reducer is a high-precision mechanical transmission device, mainly composed of three basic components: a wave generator, a flexible gear (flexspline), and a rigid gear (circular spline). Its working principle is based on the controllable elastic deformation waves generated by the wave generator. These waves are transmitted through the flexible gear and meshed with the teeth of the rigid gear, thereby realizing the transmission of motion and power.

[0003] During the processing and production of harmonic reducers, it is necessary to conduct accelerated life tests on them to evaluate their durability and reliability under long-term high-load operation. For example, a harmonic reducer life test device proposed in Chinese Patent CN217132559U has a simple and reliable mechanical structure, and all components are fixed, reducing the vibration link and greatly meeting the needs of long-term operation.

[0004] In the above solution, the accelerated life detection of the harmonic reducer is carried out through a servo motor and a torque sensor. However, the working temperature of the harmonic reducer remains unchanged during the test, and then it is impossible to test the accelerated life of the harmonic reducer at different temperatures, resulting in the lack of test life data and reducing the accuracy of the accelerated life test data of the harmonic reducer. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the utility model provides an accelerated life test device for harmonic reducers to solve the technical problems that the working temperature of the harmonic reducer remains unchanged during the test, and then it is impossible to test the accelerated life of the harmonic reducer at different temperatures, resulting in the lack of test life data and reducing the accuracy of the accelerated life test data of the harmonic reducer.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the utility model provides the following technical solution: an accelerated life test device for harmonic reducers, including: a housing, a temperature simulation device, a closing disk, a guiding arm, and a servo motor. The temperature simulation device is assembled on the top of the housing, the guiding arm is assembled on both sides inside the housing, the closing disk is assembled outside the guiding arm, the servo motor is assembled on the left side of the closing disk, a limiting groove is opened outside the closing disk, a sealing ring is assembled on the right side of the closing disk, and a sealing mechanism is embedded on the left side of the housing.

[0009] The sealing mechanism includes a turntable, a chuck is connected to the left side of the turntable, sliding grooves are evenly arranged on the right side of the turntable, sliders are slidably connected inside the sliding grooves, a sealing block plate is connected to the right side of the slider, a circular arm is connected to the right side of the sealing block plate, a limit disc is connected to the outside of the turntable through a pedestal bearing, and the limit disc is embedded in the left side of the housing. Curved grooves are evenly arranged on the left side of the limit disc, and the curved grooves are slidably connected to the circular arm.

[0010] Preferably, a flywheel is assembled at the output end of the servo motor, a coupling is assembled on the right side of the flywheel, and a torque sensor is assembled outside the coupling. A swing arm is assembled on the right side of the housing through a bearing. The coupling and the torque sensor can be used to perform an accelerated life test on the harmonic reducer through the servo motor. The swing arm can be connected to the harmonic reducer, thereby simulating the working state of the harmonic reducer and improving the detection effect of the harmonic reducer.

[0011] Preferably, assembly plates are assembled at both ends of the closing disc, and one end of the assembly plate close to the servo motor is connected to the servo motor through a rubber seat. The assembly plate can support and fix the servo motor and the harmonic reducer.

[0012] Preferably, hollow rings are inserted on both sides inside the closing disc, and the hollow rings are slidably connected to the guiding arms. The hollow rings facilitate the linear movement of the closing disc outside the guiding arms.

[0013] Preferably, handles are connected to both sides outside the turntable, and anti-slip sleeves are sleeved on the outside of the handles. The handles facilitate driving the turntable to rotate.

[0014] Preferably, the sealing block plate includes a curved plate, and sealing blocks are embedded on the outside of the curved plate. The sealing block plate can be attached to the closing disc through the sealing blocks, thereby realizing the sealing of the housing.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a harmonic reducer accelerated life test device, which has the following beneficial effects:

[0017] When the harmonic reducer acceleration life test device conducts an acceleration life test on the harmonic reducer through the added housing and temperature simulation equipment, it can simultaneously simulate the working environment, thereby obtaining the acceleration life data of the harmonic reducer under different temperature conditions. At the same time, through the added sealing mechanism, when the closing disk is connected to the housing, the closing disk can be quickly locked to prevent the closing disk from moving during the test of the harmonic reducer, which may cause the harmonic reducer to be unable to transmit temperature in a fitting manner with the servo motor and the swing arm. Meanwhile, the space between the closing disk and the housing is sealed to avoid excessive temperature changes inside the housing, thus preventing the temperature change from affecting the acceleration life test data of the harmonic reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 External schematic diagram of the present utility model;

[0019] Figure 2 Enlarged schematic diagram of the closing disk of the present utility model;

[0020] Figure 3 External schematic diagram of the sealing mechanism of the present utility model;

[0021] Figure 4 Exploded schematic diagram of the sealing mechanism of the present utility model;

[0022] Figure 5 Partial schematic diagram of the sealing mechanism of the present utility model.

[0023] In the figure: 1. Housing; 2. Temperature simulation equipment; 3. Closing disk; 31. Hollow ring; 32. Limiting groove; 4. Guide arm; 5. Servo motor; 51. Assembly plate; 6. Sealing mechanism; 61. Turntable; 62. Chuck; 63. Handle; 64. Limiting disk; 65. Sealing block plate; 66. Circular arm; 67. Curved groove; 68. Slide block; 69. Slide groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] The present utility model provides a technical solution. Please refer to Figure 1 and Figure 2, A harmonic reducer accelerated life test device, comprising: a housing 1, a temperature simulation device 2, a closing disk 3, a guiding arm 4, and a servo motor 5. The temperature simulation device 2 is assembled on the top of the housing 1, the guiding arm 4 is assembled on both sides inside the housing 1, the closing disk 3 is assembled outside the guiding arm 4, and the servo motor 5 is assembled on the left side of the closing disk 3.

[0026] A flywheel is assembled at the output end of the servo motor 5, and a coupling is assembled on the right side of the flywheel. A torque sensor is assembled outside the coupling. A swing arm is assembled on the right side of the housing 1 through a bearing. The coupling, in cooperation with the torque sensor, can conduct an accelerated life test on the harmonic reducer through the servo motor 5. The swing arm can be connected to the harmonic reducer, thereby simulating the working state of the harmonic reducer and improving the detection effect of the harmonic reducer. Assembly plates 51 are assembled at both ends of the closing disk 3, and one end of the assembly plate 51 close to the servo motor 5 is connected to the servo motor 5 through a rubber seat. The assembly plate 51 can support and fix the servo motor 5 and the harmonic reducer.

[0027] Hollow rings 31 are inserted on both sides inside the closing disk 3, and the hollow rings 31 are slidably connected to the guiding arm 4. The hollow rings 31 facilitate the linear movement of the closing disk 3 outside the guiding arm 4. A limiting groove 32 is formed on the outside of the closing disk 3, and a sealing ring is assembled on the right side of the closing disk 3. A sealing mechanism 6 is embedded on the left side of the housing 1. A pressure relief valve is assembled on the top of the housing 1 to prevent excessive pressure inside the housing 1. The temperature simulation device 2 is a common temperature control device in the prior art, including devices such as a compressor, a heater, and a temperature controller inside. The closing disk 3 can support the harmonic reducer.

[0028] The guiding arm 4 can guide the linear movement of the closing disk 3. The servo motor 5 can drive the harmonic reducer to move and conduct an accelerated life test on the harmonic reducer. The limiting groove 32 includes an annular groove, and horizontal grooves are formed at the top and bottom on the right side of the annular groove. The chuck 62 can slide into the inside of the annular groove from the horizontal groove, and then the closing disk 3 can be locked by rotating the chuck 62.

[0029] Please refer to Figure 3 、 Figure 4 and Figure 5 , The sealing mechanism 6 includes a turntable 61. A chuck 62 is connected to the left side of the turntable 61. The chuck 62 includes a ring body, and clamping blocks are assembled at both ends inside the ring body. The clamping blocks can lock the limiting groove 32. Sliding grooves 69 are evenly distributed on the right side of the turntable 61. A slider 68 is slidably connected inside the sliding grooves 69. A sealing block plate 65 is connected to the right side of the slider 68, and a circular arm 66 is connected to the right side of the sealing block plate 65.

[0030] The outside of the turntable 61 is connected with a limit disc 64 through a pedestal bearing, and the limit disc 64 is embedded in the left side of the housing 1. Curved grooves 67 are evenly arranged on the left side of the limit disc 64, and the curved grooves 67 are slidably connected with the circular arms 66. Handles 63 are connected to both sides of the outside of the turntable 61, and anti-slip sleeves are sleeved on the outside of the handles 63. The handles 63 facilitate driving the turntable 61 to rotate. The sealing block plate 65 includes a curved plate, and sealing blocks are embedded in the outside of the curved plate.

[0031] The sealing block plate 65 can be attached to the closing disc 3 through the sealing blocks, thereby realizing the sealing of the housing 1. The turntable 61 can rotate, and the chuck 62 can slide inside the limit groove 32, thereby realizing the locking of the closing disc 3. The handle 63 is connected to the housing 1, which can realize the assembly of the sealing block plate 65. The cooperation of the curved groove 67, the circular arm 66, the slider 68 and the chute 69 can drive the sealing block plate 65 to move when the turntable 61 rotates, and realize the attachment to the closing disc 3 to seal the housing 1.

[0032] In this solution, the output end of the servo motor 5 is connected to the input end of the harmonic reducer, and then the closing disc 3 is pushed into the housing 1, so that the output end of the harmonic reducer is connected to the swing arm. The servo motor 5 is started to drive the harmonic reducer to move. The torque sensor is subjected to an accelerated life test through the torque sensor, and the temperature inside the housing 1 is adjusted by starting the temperature simulation device 2, and then the accelerated life test of the torque sensor at different temperatures is realized;

[0033] When the closing disc 3 is completely inserted into the housing 1, the turntable 61 is driven to rotate by the handle 63, so that the chuck 62 rotates inside the limit groove 32, thereby restricting the position of the closing disc 3. At the same time, the slider 68 is driven to move through the chute 69, so as to cooperate with the handle 63, the curved groove 67 and the circular arm 66 to drive a plurality of sealing block plates 65 to perform a closing movement and fit with the sealing ring outside the closing disc 3, thereby realizing the complete sealing of the housing 1;

[0034] By adding the housing 1 and the temperature simulation device 2, when the harmonic reducer is subjected to an accelerated life test, the working environment can be simulated at the same time, so as to realize the accelerated life data of the harmonic reducer under different temperature conditions. At the same time, through the added sealing mechanism 6, when the closing disc 3 is connected to the housing 1, the closing disc 3 can be quickly locked, avoiding the movement of the closing disc 3 during the harmonic reducer test, which may cause the harmonic reducer to be unable to be temperature-fitted and transmitted with the servo motor 5 and the swing arm. At the same time, the connection between the closing disc 3 and the housing 1 is sealed, avoiding excessive temperature changes inside the housing 1, thereby avoiding the influence of temperature changes on the accelerated life test data of the harmonic reducer.

[0035] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A harmonic reducer accelerated life test device, comprising: A housing (1), a temperature simulation device (2), a closing disc (3), a guiding arm (4) and a servo motor (5). The temperature simulation device (2) is assembled on the top of the housing (1). The guiding arms (4) are assembled on both sides inside the housing (1). The closing disc (3) is assembled outside the guiding arms (4). The servo motor (5) is assembled on the left side of the closing disc (3). It is characterized in that: a limiting groove (32) is formed on the outside of the closing disc (3), a sealing ring is assembled on the right side of the closing disc (3), and a sealing mechanism (6) is embedded on the left side of the housing (1). The sealing mechanism (6) includes a turntable (61). A chuck (62) is connected to the left side of the turntable (61). Slide grooves (69) are evenly arranged on the right side of the turntable (61). A slider (68) is slidably connected inside the slide grooves (69). A sealing block plate (65) is connected to the right side of the slider (68). A circular arm (66) is connected to the right side of the sealing block plate (65). A limiting disc (64) is connected to the outside of the turntable (61) through a pedestal bearing, and the limiting disc (64) is embedded in the left side of the housing (1). Curved grooves (67) are evenly arranged on the left side of the limiting disc (64), and the curved grooves (67) are slidably connected to the circular arms (66).

2. The accelerated life test device for a harmonic reducer according to claim 1, wherein: A flywheel is assembled at the output end of the servo motor (5), and a coupling is assembled on the right side of the flywheel. A torque sensor is assembled outside the coupling. A swing arm is assembled on the right side of the housing (1) through a bearing.

3. The accelerated life test device for a harmonic reducer according to claim 1, characterized in that: Assembly plates (51) are assembled at both ends of the closing disc (3), and one end of the assembly plate (51) close to the servo motor (5) is connected to the servo motor (5) through a rubber seat.

4. The accelerated life test device for a harmonic reducer according to claim 1, wherein: Hollow rings (31) are inserted into both sides inside the closing disc (3), and the hollow rings (31) are slidably connected to the guiding arms (4).

5. The accelerated life test device for a harmonic reducer according to claim 1, characterized in that: Handles (63) are connected to both sides outside the turntable (61), and anti-slip sleeves are sleeved on the outside of the handles (63).

6. The accelerated life test device for a harmonic reducer according to claim 1, characterized in that: The sealing block plate (65) includes a curved plate, and sealing blocks are embedded on the outside of the curved plate.

Images