Torque testing device

Abstract

The utility model discloses a torque testing device which comprises a magnetic powder vibrator, a speed reducer, an output torque sensor, a base and a connecting assembly. The magnetic powder vibrator is used for simulating a load. The speed reducer is used for preventing reverse impact. The output torque sensor detects the torque output by the gearbox to be detected. The connecting assembly comprises a driven shaft and an auxiliary frame, one end of the driven shaft is connected with the output torque sensor, and the side wall of the other end is rotatably connected with the auxiliary frame, extends out of the side wall of the auxiliary frame and is used for connecting a to-be-tested gearbox. The output torque and the input torque can be detected only through screwing of the torque wrench, when the gear box torque needing to be detected is large and cannot be wrenched manually, automatic equipment can be used as a power source to complete torque input, then the output torque is detected through the output torque sensor, and under driving of the automatic equipment, the gear box torque can be automatically detected. And the service life of the gearbox to be detected can be detected through circular driving. The device can detect gearboxes with various torque spans, and is wide in application range.

Description

Technical Field

[0001] The utility model relates to the technical field of torque testing, in particular to a torque testing device. Background Art

[0002] A gearbox is a mechanical transmission device used to change the rotational speed and torque. It is usually composed of multiple gears that transmit force and motion through meshing. They are common and important transmission components in mechanical systems, playing the role of transmitting power, adjusting speed and torque, etc.

[0003] In the current existing technology, due to the influence of market product size, working environment, etc., the torque testers used in the market are not the same. It is impossible to manually or automatically test different reducer torque values ​​in the same model of torque tester, resulting in a small application range.

[0004] Therefore, the torque range detected by the current torque testing device is relatively small, and a torque testing device is still needed to solve the above problem. Utility Model Content

[0005] The utility model provides a torque testing device for solving the above problems.

[0006] The purpose of the utility model is achieved by the following technical solutions:

[0007] A torque testing device, comprising:

[0008] A magnetic powder vibrator, wherein the magnetic powder vibrator is used to simulate a load;

[0009] A reducer, wherein the reducer is used to prevent reverse impact;

[0010] An output torque sensor, the output torque sensor is used to detect the torque output by the gearbox to be tested;

[0011] A base, on which the magnetic powder vibrator, the reducer and the output torque sensor are sequentially connected and located;

[0012] It also includes a connecting component, which includes a passive shaft and an auxiliary frame. One end of the passive shaft is connected to the output torque sensor, and the side wall of the other end is rotatably connected to the auxiliary frame and extends from the side wall of the auxiliary frame for connecting to the gear box to be tested.

[0013] In one embodiment, a connecting groove is provided on a side of the auxiliary frame away from the output torque sensor, a connecting plate is connected in the connecting groove, and the connecting plate is used to fix the gear box to be tested.

[0014] In one embodiment, it also includes an automatic drive component, which includes a movable bracket, an electric gearbox and a first torque sensor. The electric gearbox is connected to a driving shaft through the torque sensor, and the worm of the gearbox to be tested is plugged into the driving shaft. The first torque sensor is used to detect input torque. The electric gearbox is connected to the auxiliary frame through a movable bracket.

[0015] In one embodiment, a torque wrench and a second torque sensor are further included. The torque wrench is plugged into the worm of the gearbox to be tested via the second sensor. The second torque sensor is used to detect input torque.

[0016] In one embodiment, one side of the connecting plate is connected to the connecting groove by bolts, and the other side is connected to the outer wall of the gear box to be tested by bolts.

[0017] In one embodiment, the bottom of the auxiliary frame is connected to the base by bolts.

[0018] Compared with the prior art, the beneficial effects of the present invention include at least:

[0019] A connecting assembly and an auxiliary frame are set on the base. When the torque of the gearbox to be tested is small, the output torque and input torque can be tested by twisting with a torque wrench. When the torque of the gearbox to be tested is large and cannot be turned manually, the torque input can be completed by automatic equipment as a power source, and then the output torque can be detected by the output torque sensor. Driven by the automatic equipment, the cyclic drive can detect the service life of the gearbox to be tested. It can detect gearboxes with various torque spans and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the torque tester and the gearbox to be tested according to the embodiment of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the torque tester and part of the gearbox to be tested according to the embodiment of the utility model;

[0022] Figure 3 It is a partial cross-sectional view of the torque tester of the utility model embodiment;

[0023] Figure 4 It is a schematic diagram of the assembly structure of an embodiment of the utility model and a torque tester;

[0024] Figure 5 It is a structural schematic diagram of another embodiment of the utility model and the assembly part of the torque tester.

[0025] In the figure: 1. magnetic powder vibrator; 2. reducer; 3. output torque sensor; 4. base; 5. connecting assembly; 51. passive shaft; 52. auxiliary frame; 521. connecting groove; 522. connecting plate; 6. automatic drive assembly; 61. movable bracket; 62. electric gearbox; 63. first torque sensor; 64. active shaft; 7. torque wrench; 71. second torque sensor; 8. gearbox to be tested. DETAILED DESCRIPTION

[0026] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete and to fully convey the concepts of example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.

[0027] The words expressing positions and directions described in the present utility model are all explained by taking the drawings as examples, but they can be changed as needed, and all the changes are included in the protection scope of the present utility model.

[0028] Reference Figure 1-5 The utility model provides a torque testing device, including: a magnetic powder vibrator, a reducer, an output torque sensor and a base. The magnetic powder vibrator is used to simulate the load, the reducer is used to prevent reverse impact, and the output torque sensor is used to detect the torque output by the gear box to be tested.

[0029] The magnetic powder vibrator, the speed reducer and the output torque sensor are connected in sequence and are located on the base. The speed reducer is used to change the power torque so that the gearbox simulates a real driving environment. The magnetic powder vibrator is connected to the speed reducer through a rotating shaft, and the speed reducer is connected to the torque sensor through a rotating shaft. When the magnetic powder vibrator is working, it can simulate the load connected to the gearbox and simulate the real working environment of the gearbox.

[0030] The device also includes a connecting assembly, wherein the connecting assembly includes a passive shaft and an auxiliary frame, wherein one end of the passive shaft is connected to the output torque sensor, and the side wall of the other end is rotatably connected to the auxiliary frame and extends from the side wall of the auxiliary frame for connecting to the gearbox to be tested. The torque sensor is connected through the passive shaft and extends from the auxiliary frame. The auxiliary frame is, for example, a metal frame.

[0031] The auxiliary frame of the connecting component can be used to connect the gearbox body and the output shaft, and the top can be used to connect a manually connected torque wrench or a fixed automatically driven electric gearbox, which is convenient for testing gearboxes with different torque ranges with a large span.

[0032] In one embodiment, a connection groove is provided on a side of the auxiliary frame away from the output torque sensor, and a connection plate is connected in the connection groove, and the connection plate is used to fix the gearbox to be tested. The shape of the connection groove can be a circular groove whose shape matches that of the connection plate. The connection plate is connected in the connection groove, and can be stably fixed by the connection plate.

[0033] In one embodiment, it also includes an automatic drive component, which includes a movable bracket, an electric gearbox and a first torque sensor. The electric gearbox is connected to the driving shaft through the torque sensor, and the worm of the gearbox to be tested is plugged into the driving shaft. The first torque sensor is used to detect the input torque, and the electric gearbox is connected to the auxiliary frame through the movable bracket. The first torque sensor and the output torque sensor can be sensors of the same model located at different positions. The first torque sensor and the output torque sensor are both electrically connected to the PLC controller, and the torque data is obtained through the PLC controller and transmitted to the user end. Driven by the power of the electric gearbox, the tester can debug the battery gearbox and start the cycle to perform cyclic testing on the gearbox to be tested and collect data, test the service life of the experimental gearbox, and compare the torque value.

[0034] In one embodiment, a torque wrench and a second torque sensor are also included. The torque wrench is plugged into the worm of the gearbox to be tested through the second sensor, and the second torque sensor is used to detect the input torque. The plug of the torque wrench is connected to the top of the worm of the gearbox, and the worker manually screws the gearbox, and compares the data between the torque wrench and the second torque sensor multiple times to facilitate the analysis of the performance of the gearbox to be tested.

[0035] In one embodiment, one side of the connecting plate is connected to the connecting groove by bolts, and the other side is connected to the outer wall of the gear box to be tested by bolts.

[0036] In one embodiment, the bottom of the auxiliary frame is connected to the base by bolts.

[0037] Although the embodiments of the utility model have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the utility model. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the utility model without departing from the principles and purpose of the utility model. All of these changes should fall within the scope of protection of the claims of the utility model.

Claims

1. A torque testing device, characterized in that: include: A magnetic powder vibrator, wherein the magnetic powder vibrator is used to simulate a load; A reducer, wherein the reducer is used to prevent reverse impact; An output torque sensor, the output torque sensor is used to detect the torque output by the gearbox to be tested; A base, on which the magnetic powder vibrator, the reducer and the output torque sensor are sequentially connected and located; It also includes a connecting assembly, the connecting assembly includes a passive shaft and an auxiliary frame, one end of the passive shaft is connected to the output torque sensor, and the side wall of the other end is rotatably connected to the auxiliary frame and extends from the side wall of the auxiliary frame for connecting to the gear box to be tested; A connecting groove is provided on a side of the auxiliary frame away from the output torque sensor, a connecting plate is connected in the connecting groove, and the connecting plate is used to fix the gear box to be tested.

2. The torque testing device according to claim 1, characterized in that: It also includes an automatic drive component, which includes a movable bracket, an electric gearbox and a first torque sensor. The electric gearbox is connected to a driving shaft through the torque sensor, and the worm of the gearbox to be tested is plugged into the driving shaft. The first torque sensor is used to detect input torque. The electric gearbox is connected to the auxiliary frame through the movable bracket.

3. The torque testing device according to claim 1, characterized in that: It also includes a torque wrench and a second torque sensor. The torque wrench is plugged into the worm of the gearbox to be tested through the second sensor. The second torque sensor is used to detect input torque.

4. The torque testing device according to claim 1, characterized in that: One side of the connecting plate is connected to the connecting groove by bolts, and the other side is connected to the outer wall of the gear box to be tested by bolts.

5. The torque testing device according to claim 4, characterized in that: The bottom of the auxiliary frame is connected to the base through bolts.

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