Pneumatic gear shifting mechanism testing device

Abstract

The utility model relates to a pneumatic gearshift mechanism testing device, comprising a testing cylinder connected with a pneumatic gearshift mechanism and controlled by the pneumatic gearshift mechanism to open and close; the transmission assembly comprises a shifting fork shaft, a gear shifting fork, a gear shifting shaft and a wave spring, the shifting fork shaft is driven by the testing air cylinder to move axially, one end of the gear shifting fork is connected with the shifting fork shaft, the wave spring is arranged outside the gear shifting shaft, and the other end of the gear shifting fork is connected with the wave spring; the testing assembly comprises a pressure sensor and a displacement sensor, the pressure sensor abuts against the gear shifting shaft, the axial movement of the shifting fork shaft can compress the wave spring through the gear shifting fork, the compression force acts on the pressure sensor through the gear shifting shaft, and the displacement sensor is used for detecting the displacement of the shifting fork shaft. The utility model provides a pneumatic gear-shifting mechanism testing device which can be matched with a pneumatic gear-shifting mechanism and can detect the gear-shifting force and the gear-shifting stroke of the pneumatic gear-shifting mechanism under the condition of a certain load.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic shifting mechanism testing, and in particular to a pneumatic shifting mechanism testing device. Background Technology

[0002] A pneumatic shifting mechanism is a system that uses pneumatic components to perform shifting actions. Compared with traditional manual shifting, pneumatic shifting can significantly reduce shifting time and improve shifting stability.

[0003] After the pneumatic shifting mechanism was designed, it was not matched with a gearbox at the moment, so it was impossible to conduct relevant bench tests. Therefore, it was impossible to control the product quality of the pneumatic shifting mechanism.

[0004] Once the pneumatic shifting mechanism is assembled and put into use with the gearbox, it is too late to test the pneumatic shifting mechanism. Furthermore, if quality problems are found at this time, the pneumatic shifting mechanism and the gearbox need to be disassembled, which is not only time-consuming and labor-intensive, but also prone to damaging the gearbox. Utility Model Content

[0005] Therefore, the technical problem to be solved by this utility model is to overcome the problem that the existing technology cannot perform relevant bench tests on pneumatic shifting mechanisms, and to provide a pneumatic shifting mechanism testing device that can cooperate with the pneumatic shifting mechanism to detect the shifting force and shifting stroke of the pneumatic shifting mechanism under certain load conditions.

[0006] To solve the above-mentioned technical problems, this utility model provides a pneumatic shifting mechanism testing device, comprising:

[0007] The test cylinder is connected to a pneumatic shifting mechanism, and its opening and closing are controlled by the pneumatic shifting mechanism.

[0008] The transmission assembly includes: a shift fork shaft, a shift fork, a shift shaft, and a wave spring. The shift fork shaft is driven to move axially by the test cylinder. One end of the shift fork is connected to the shift fork shaft. The wave spring is disposed outside the shift shaft, and the other end of the shift fork is connected to the wave spring.

[0009] The test components include a pressure sensor and a displacement sensor. The pressure sensor abuts against the shift shaft. The axial movement of the shift fork shaft can compress the wave spring through the shift fork, and the compressive force is applied to the pressure sensor through the shift shaft. The displacement sensor is used to detect the displacement of the shift fork shaft.

[0010] In one embodiment of this utility model, pressure sensors are provided at both ends of the shift shaft.

[0011] In one embodiment of this utility model, the test end of the displacement sensor abuts against the shift fork shaft.

[0012] In one embodiment of this utility model, a mounting bracket is also included, the pneumatic shifting mechanism is disposed on the mounting bracket, and the mounting bracket covers the test cylinder, transmission assembly and test assembly.

[0013] In one embodiment of this utility model, the pneumatic shifting mechanism is detachably mounted on the mounting bracket.

[0014] In one embodiment of this utility model, a fixing block is provided on the mounting bracket, and the pressure sensor is disposed in the fixing block through the mounting bracket.

[0015] In one embodiment of this utility model, the support end of the displacement sensor is connected to the mounting bracket.

[0016] In one embodiment of this utility model, wave springs with different elastic coefficients are provided to change the load force on the pneumatic shifting mechanism.

[0017] In one embodiment of this utility model, the pneumatic shifting mechanism operates continuously, allowing for durability testing.

[0018] In one embodiment of this utility model, the pneumatic shifting mechanism is simultaneously connected to and controls multiple sets of test cylinders, and multiple sets of transmission components and test components are set according to the number of test cylinders.

[0019] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0020] The pneumatic shifting mechanism testing device of this utility model transmits the output power of the pneumatic shifting mechanism to the testing component through the test cylinder and the transmission component, detects the magnitude of the shifting force output by the pneumatic shifting mechanism through the pressure sensor, and detects the shifting stroke output by the pneumatic shifting mechanism through the displacement sensor.

[0021] Furthermore, the wave spring is designed to transmit the shifting force output by the pneumatic shifting mechanism to the pressure sensor, and to enable the pneumatic shifting mechanism to operate under load, thus simulating the real-world operating environment.

[0022] The pneumatic shifting mechanism testing device of this invention can monitor the product quality of the pneumatic shifting mechanism without configuring a gearbox, thus ensuring the product quality of the pneumatic shifting mechanism. Attached Figure Description

[0023] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0024] Figure 1 This is a schematic diagram of the internal structure of the pneumatic shifting mechanism testing device of this utility model;

[0025] Figure 2 This is a schematic diagram of the overall structure of the pneumatic shifting mechanism testing device of this utility model;

[0026] Explanation of reference numerals in the accompanying drawings: 1. Pneumatic shifting mechanism; 2. Test cylinder; 3. Shift fork shaft; 4. Shift fork; 5. Shift shaft; 6. Wave spring; 7. Pressure sensor; 8. Displacement sensor; 9. Mounting bracket; 10. Fixing block Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0028] Reference Figure 1 As shown, this utility model discloses a pneumatic shifting mechanism testing device, capable of testing a pneumatic shifting mechanism 1. It includes: a test cylinder 2, a transmission assembly, and a testing component. The test cylinder 2 is connected to the pneumatic shifting mechanism 1, and its opening and closing are controlled by the pneumatic shifting mechanism 1. When the pneumatic shifting mechanism 1 is open, it can control the movement of the output shaft of the test cylinder 2. The transmission assembly includes: a shift fork shaft 3, a shift fork 4, a shift shaft 5, and a wave spring 6. The shift fork shaft 3 is connected to the output shaft of the test cylinder 2, and its axial movement is driven by the output shaft of the test cylinder 2. One end of the shift fork 4 is connected to the shift fork shaft 3, and the other end of the shift fork 4 is connected to a sleeve. A shift shaft 5 is connected to a wave spring 6, with both ends of the wave spring 6 fixedly connected to the shift shaft 5. When the wave spring 6 is subjected to pressure from the shift fork 4, it acts on the shift shaft 5. The testing assembly includes a pressure sensor 7 and a displacement sensor 8. The pressure sensor abuts against the shift shaft 5. The axial movement of the shift fork shaft 3 compresses the wave spring 6 via the shift fork 4, and the compressive force acts on the pressure sensor 7 via the shift shaft 5. The pressure sensor 7 can detect the magnitude of the shifting force output by the pneumatic shift mechanism 1. The displacement sensor 8 is used to detect the displacement of the shift fork shaft 3, and can detect the shifting stroke output by the pneumatic shift mechanism 1.

[0029] In this embodiment, the wave spring 6 is provided so that the shifting force output by the pneumatic shifting mechanism 1 can be transmitted to the pressure sensor 7. On the other hand, the elastic force of the wave spring 6 enables the pneumatic shifting mechanism 1 to operate under load, which can simulate the real use environment.

[0030] The testing device for the pneumatic shift mechanism 1 of this utility model can monitor the product quality of the pneumatic shift mechanism 1 without configuring a gearbox, thus ensuring the product quality of the pneumatic shift mechanism 1.

[0031] Specifically, in actual use, the test cylinder 2 can be an independent cylinder specifically used for testing. The test cylinder 2 is connected to the pneumatic shifting mechanism 1 to test other components in the pneumatic shifting mechanism 1. Alternatively, the test cylinder 2 can be a cylinder component in the pneumatic shifting mechanism 1 to test the entire pneumatic shifting mechanism 1.

[0032] Specifically, since the test cylinder 2 can drive the shift fork shaft 3 to move in two directions, pressure sensors 7 are provided at both ends of the shift shaft 5. Regardless of which direction the test cylinder 2 outputs power to, the pressure sensors 7 can monitor the output.

[0033] Specifically, the test end of the displacement sensor 8 abuts against the shift fork shaft 3. The test end of the displacement sensor 8 can move under the action of the shift fork shaft 3 and can detect the distance of movement as the displacement of the shift fork shaft 3, thereby characterizing the shift stroke output by the pneumatic shift mechanism 1. When the test end of the displacement sensor 8 is not under the action of the shift fork shaft 3, it can reset and abut against the shift fork shaft 3.

[0034] When using the pneumatic shifting mechanism 1 testing device of this utility model, wave springs 6 with different elastic coefficients can be set according to the actual load conditions of different pneumatic shifting mechanisms, which can change the load force on the pneumatic shifting mechanism 1.

[0035] When using the pneumatic shifting mechanism 1 testing device of this utility model, the pneumatic shifting mechanism 1 is set to operate continuously, which can test its durability.

[0036] Specifically, the pneumatic shifting mechanism 1 is connected to and controls multiple sets of test cylinders 2. Multiple sets of transmission components and test components are set according to the number of test cylinders 2. For example, in this embodiment, four sets of test cylinders 2 are set, and four sets of transmission components and test components are also set accordingly. This device can simultaneously meet the detection of four shifting forces and four shifting strokes of the pneumatic shifting mechanism 1.

[0037] Reference Figure 2As shown, the pneumatic shifting mechanism 1 testing device of this utility model also includes a mounting frame 9. The pneumatic shifting mechanism 1 is mounted on the mounting frame 9. The mounting position is adjusted and fixed to ensure that the pneumatic shifting mechanism 1 will not loosen when it is running. The mounting frame 9 covers the test cylinder 2, transmission assembly and test assembly. The mounting frame 9 can protect the test cylinder 2, transmission assembly and test assembly, ensuring that they are not affected by external interference during the test and ensuring the accuracy of the test results.

[0038] Specifically, the pneumatic shifting mechanism 1 is detachably mounted on the mounting bracket 9. In actual use, different pneumatic shifting mechanism 1 testing devices can be selected for different pneumatic shifting mechanisms 1 to meet testing requirements.

[0039] Specifically, the mounting bracket 9 is provided with a fixing block 10, and the pressure sensor 7 passes through the mounting bracket 9 and is installed in the fixing block 10. The fixing block 10 can not only support and fix the pressure sensor 7, but also cover the pressure sensor 7 to protect it. On the one hand, it can prevent the pressure sensor 7 from being damaged, and on the other hand, it can prevent external interference forces from acting on the pressure sensor 7 and affecting the accuracy of the test results.

[0040] Specifically, the support end of the displacement sensor 8 is connected to the mounting bracket 9, thereby fixing the displacement sensor 8 onto the mounting bracket 9.

[0041] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A testing device for a pneumatic shifting mechanism, characterized in that: include: The test cylinder is connected to a pneumatic shifting mechanism, and its opening and closing are controlled by the pneumatic shifting mechanism. The transmission assembly includes: a shift fork shaft, a shift fork, a shift shaft, and a wave spring. The shift fork shaft is driven to move axially by the test cylinder. One end of the shift fork is connected to the shift fork shaft. The wave spring is disposed outside the shift shaft, and the other end of the shift fork is connected to the wave spring. The test components include a pressure sensor and a displacement sensor. The pressure sensor abuts against the shift shaft. The axial movement of the shift fork shaft can compress the wave spring through the shift fork, and the compressive force is applied to the pressure sensor through the shift shaft. The displacement sensor is used to detect the displacement of the shift fork shaft.

2. The pneumatic shifting mechanism testing device according to claim 1, characterized in that: Pressure sensors are installed at both ends of the shift shaft.

3. The pneumatic shifting mechanism testing device according to claim 1, characterized in that: The test end of the displacement sensor abuts against the fork shaft.

4. The pneumatic shifting mechanism testing device according to claim 1, characterized in that: It also includes a mounting bracket, on which the pneumatic shifting mechanism is mounted, and the mounting bracket covers the test cylinder, transmission assembly and test assembly.

5. The pneumatic shifting mechanism testing device according to claim 1, characterized in that: The pneumatic shifting mechanism is detachably mounted on the mounting bracket.

6. The pneumatic shifting mechanism testing device according to claim 4, characterized in that: A fixing block is provided on the mounting bracket, and the pressure sensor is installed in the fixing block through the mounting bracket.

7. The pneumatic shifting mechanism testing device according to claim 4, characterized in that: The support end of the displacement sensor is connected to the mounting bracket.

8. The pneumatic shifting mechanism testing device according to claim 1, characterized in that: By using wave springs with different elastic coefficients, the load force on the pneumatic shifting mechanism can be changed.

9. The pneumatic shifting mechanism testing device according to claim 1, characterized in that: The pneumatic shifting mechanism operates continuously, allowing for durability testing.

10. The pneumatic shifting mechanism testing device according to claim 1, characterized in that: The pneumatic shifting mechanism connects to and controls multiple sets of test cylinders, and multiple sets of transmission components and test components are set up according to the number of test cylinders.

Images