Jitter testing device for ultra-short harmonic speed reducer

Abstract

The utility model belongs to the technical field of jitter testing devices for harmonic speed reducers, in particular to a jitter testing device for an ultra-short harmonic speed reducer, which comprises a harmonic speed reducer main body, a rack and a base plate, the harmonic speed reducer main body comprises a wave generator, a flexible gear and a rigid gear, the rack can be mounted and connected on the rack, and the base plate is arranged on the harmonic speed reducer main body. The base plate is connected with the rack, the motor is arranged behind the center of the base plate and used for providing torque for the wave generator, and the wave generator is connected with an output shaft of the motor through the input shaft device. The device overcomes the existing defects, can rapidly carry out the jitter test of the ultra-short harmonic speed reducer, is high in adjustment speed, facilitates the detection of a plurality of speed reducers, greatly improves the jitter precision, is stable and rapid, reduces the control difficulty, and improves the overall performance of the ultra-short harmonic speed reducer.

Description

Technical Field

[0001] The utility model belongs to the technical field of jitter test devices for harmonic reducers, and particularly relates to a jitter test device for ultra-short harmonic reducers. Background Technique

[0002] Harmonic reducers are important transmission components widely used in fields such as automation equipment, robots, and precision instruments. A harmonic reducer consists of three core components: a rigid gear, a flexible gear, and a wave generator. The wave generator is assembled with flexible bearings to cause the flexible gear to generate controllable elastic deformation, and meshes with the rigid gear to transmit motion and power. The product performance of a harmonic reducer not only depends on the design and manufacturing processes but also has high requirements for the assembly and inspection processes. If any link fails to be effectively controlled, it will affect the application of the harmonic reducer.

[0003] Currently, due to their small size, ultra-short harmonic reducers have higher precision requirements. Therefore, corresponding jitter tests need to be carried out through device connection during factory production. Assembly workers need to disassemble and assemble the reducer, which easily leads to an increase in errors and a reduction in the performance of the reducer. Moreover, the current devices have complex connections, diverse styles, slow adjustment speeds, and the detection of jitter accuracy is easily interfered with, reducing the use effect.

[0004] To solve the above problems, a jitter test device for ultra-short harmonic reducers is proposed in this application. Content of the Utility Model

[0005] The utility model provides a jitter test device for ultra-short harmonic reducers, which can effectively solve the problems raised in the above background technique.

[0006] To achieve the above object, the utility model provides the following technical solution: A jitter test device for ultra-short harmonic reducers, including a harmonic reducer main body, the harmonic reducer main body includes a wave generator, a flexible gear, and a rigid gear, and further includes;

[0007] A bench, the rigid gear can be installed and connected to the bench;

[0008] A substrate, the substrate is connected to the bench;

[0009] A motor, the motor is arranged behind the center of the substrate, and the motor is used to provide torque to the wave generator;

[0010] An input shaft device, the wave generator is connected to the output shaft of the motor through the input shaft device.

[0011] As a preferred jitter test device for ultra-short harmonic reducers of the utility model, the input shaft device is an end cover.

[0012] Preferably, as a jitter test device for an ultra-short harmonic reducer of the present utility model, the inner wall of the end cover is connected to the output shaft of the motor by interference fit, and the outer wall of the end cover is connected to the inner wall of the wave generator by interference fit.

[0013] Preferably, as a jitter test device for an ultra-short harmonic reducer of the present utility model, an installation groove is provided on the outer surface of the motor, a clamping block adapted to the installation groove is provided on the inner wall of the end cover, and the outer wall of the end cover is connected to the inner wall of the wave generator by interference fit.

[0014] Preferably, as a jitter test device for an ultra-short harmonic reducer of the present utility model, the rigid gear is fixedly connected to the bench by screws.

[0015] Preferably, as a jitter test device for an ultra-short harmonic reducer of the present utility model, it further includes a jitter detection device, and the detection end of the jitter detection device contacts the surface of the flexible gear.

[0016] Preferably, as a jitter test device for an ultra-short harmonic reducer of the present utility model, the jitter detection device can be fixedly installed on the bench.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] With the structure of this device, the jitter test can be quickly carried out on 14 different series of ultra-short harmonic reducers, overcoming the existing defects. The jitter test of the ultra-short harmonic reducer can be carried out quickly, the adjustment speed is fast, it is convenient to detect multiple reducers, the jitter accuracy is greatly improved, it is stable and fast, the operation difficulty is reduced, the overall performance of the ultra-short reducer is improved, the use effect is better, and the actual use requirements are met. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0020] Figure 1 It is a schematic structural diagram of a jitter test device for an ultra-short harmonic reducer (14 ultra-short cap types);

[0021] Figure 2 It is a schematic structural diagram of the jitter test device for this ultra-short harmonic reducer (14 ultra-short cup types);

[0022] In the figure: 1. Harmonic reducer main body; 101. Wave generator; 102. Flexible gear; 103. Rigid gear; 2. Bench; 3. Motor; 4. Input shaft device; 5. Substrate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] An embodiment is as Figure 1-2 shown. A jitter test device for an ultra-short harmonic reducer includes a harmonic reducer main body 1. The harmonic reducer main body 1 includes a wave generator 101, a flexible gear 102, and a rigid gear 103, and further includes;

[0025] A bench 2, and the rigid gear 103 can be installed and connected to the bench 2;

[0026] A substrate 5, and the substrate 5 is connected to the bench 2;

[0027] A motor 3, which is arranged behind the center of the substrate 5, and the motor 3 is used to provide torque for the wave generator 101;

[0028] An input shaft device 4, and the wave generator 101 is connected to the output shaft of the motor 3 through the input shaft device 4;

[0029] The input shaft device 4 is an end cover. The inner wall of the end cover is in interference fit connection with the output shaft of the motor 3, and the outer wall of the end cover is in interference fit connection with the inner wall of the wave generator 101. An installation groove is opened on the outer surface of the motor 3, and a clamping block adapted to the installation groove is opened on the inner wall of the end cover. The outer wall of the end cover is in interference fit connection with the inner wall of the wave generator 101. The rigid gear 103 and the bench 2 are fixedly connected by screws. A jitter detection device is further included, and the detection end of the jitter detection device contacts the surface of the flexible gear 102. The jitter detection device can be fixedly installed on the bench 2.

[0030] In this embodiment: When the jitter test device of the ultra-short harmonic reducer is in use, the motor 3 is installed on the substrate 5 of the bench 2. When installing and testing the harmonic reducer main body 1, first, the rigid gear 103 is installed on the bench 2 through bolts. At the same time, the wave generator 101 on the harmonic reducer main body 1 is connected to the output shaft of the motor 3 through the input shaft device 4. Driven by the motor 3, the wave generator 101 and the flexible gear 102 are driven to rotate on the rigid gear 103. At the same time, the detection end of the jitter detection device is in contact with the surface of the flexible gear 102 to detect the jitter situation. Through the cooperation of the clamping blocks of the input shaft device 4, the installation of 14 ultra-short harmonic reducers of two different series can be quickly carried out to realize the jitter test. At the same time, the inner wall of the end cover is in interference fit connection with the output shaft of the motor 3, and the outer wall of the end cover is in interference fit connection with the inner wall of the wave generator 101 without additional connecting parts such as bolts and keys. Therefore, the structure is relatively simple, the installation efficiency is improved. Through the above steps, the jitter error caused by multiple assemblies and dismountings is effectively reduced, the jitter accuracy is greatly improved, the assembly is simple, the disassembly and replacement are reduced, the detection accuracy is high, time and labor are saved, and the performance improvement of the ultra-short harmonic reducer product can also play a significant role. It is convenient to use, improves efficiency, and saves the detection cost;

[0031] The jitter detection device can be fixedly installed on the bench 2. Through the fixed installation, stable support can be provided for the jitter detection device, reducing the error introduced by the shaking of the jitter detection device itself and ensuring the accuracy of the detection results. At the same time, according to the actual installation requirements, the installation position can be flexibly changed. At the same time, when the jitter detection device is fixed at the same position, the conditions of each test are kept as consistent as possible, which is beneficial to improving the repeatability and comparability of the test results and further improving the use effect of the device to meet the actual use requirements.

[0032] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vibration test device for an ultra-short harmonic reducer, comprising a harmonic reducer body (1), wherein the harmonic reducer body (1) comprises a wave generator (101), a flexible wheel (102) and a rigid wheel (103), characterized in that: Also includes; A stand (2), wherein the rigid wheel (103) can be installed and connected to the stand (2); A substrate (5), wherein the substrate (5) is connected to the stand (2); A motor (3), the motor (3) being arranged behind the center of the substrate (5), and the motor (3) being used to provide torque to the wave generator (101); An input shaft device (4), wherein the wave generator (101) is connected to the output shaft of the motor (3) via the input shaft device (4).

2. The jitter test device for an ultra-short harmonic reducer according to claim 1, characterized in that: The input shaft device (4) is an end cover.

3. The jitter test device for an ultra-short harmonic reducer according to claim 2, characterized in that: The inner wall of the end cover is connected to the output shaft of the motor (3) by interference fit, and the outer wall of the end cover is connected to the inner wall of the wave generator (101) by interference fit.

4. The jitter test device for an ultra-short harmonic reducer according to claim 2, characterized in that: The outer surface of the motor (3) is provided with a mounting groove, the inner wall of the end cover is provided with a clamping block matched with the mounting groove, and the outer wall of the end cover is connected with the inner wall of the wave generator (101) by interference fit.

5. The jitter test device for an ultra-short harmonic reducer according to claim 1, characterized in that: The rigid wheel (103) is fixedly connected to the stand (2) via screws.

6. The jitter test device for an ultra-short harmonic reducer according to claim 1, characterized in that: A vibration detection device is also included, wherein a detection end of the vibration detection device is in contact with the surface of the flexible wheel (102).

7. The jitter test device for an ultra-short harmonic reducer according to claim 6, characterized in that: The vibration detection device can be fixedly mounted on the stand (2).

Images