Gearbox electromagnetic clutch test connecting device

Abstract

The utility model discloses a gearbox electromagnetic clutch test connecting device, which comprises an input adapter flange, an output adapter flange, a test bin body used for accommodating a tested electromagnetic clutch, and an input shaft and an output shaft which are arranged on the test bin body and used for connecting the tested electromagnetic clutch, and the input shaft and the output shaft are arranged to be rotatable. The input adapter flange is detachably connected with the input shaft, and the input adapter flange has various specifications. According to the gearbox electromagnetic clutch test connecting device, parts can be replaced, the test requirements of electromagnetic clutches of various sizes can be met, and the universality is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of testing equipment. Specifically, the utility model relates to a test connection device for a gearbox electromagnetic clutch. Background Art

[0002] At present, the electric drive technology has developed rapidly, and the DHT (Dedicated Hybrid Transmission), with the dual-motor series-parallel architecture as the core, is increasingly expanding its market share in the whole vehicle market. In this type of DHT, the clutch, as an important component for engine start / power output / power cut-off, needs to achieve the goals of high response, high reliability, and low noise, and the electromagnetic clutch meets these goals.

[0003] To carry out the test research on the electromagnetic clutch, the prior art has designed delicate test mechanisms and devices, but lacks universality.

[0004] Chinese Patent No. 202022200806.9 discloses a test connection device for an air-conditioning compressor electromagnetic clutch, including a mounting bracket. An installation groove is formed in the inner side of the edge of the mounting bracket. A first moving block is installed on the surface of the vertical lead screw. A clamping block is installed at one end of the adjusting screw located inside the mounting bracket. The lower end of the buffer column is fixedly connected to the debugging machine main body. In this test connection device for the air-conditioning compressor electromagnetic clutch, the vertical lead screw replaces the traction rope, making the lifting of the debugging machine main body more stable. In addition, the clamping block is designed with an arc-shaped structure, and an anti-slip rubber pad is added to the clamping surface of the clamping block, greatly improving the clamping effect of the device on the tested electromagnetic clutch, thus being beneficial to the stable test of the electromagnetic clutch. Moreover, two groups of electromagnetic clutches can be tested simultaneously, greatly improving the test efficiency of the device and being beneficial to the large-scale test of the electromagnetic clutch.

[0005] It is desired to provide an improved test connection device for a gearbox electromagnetic clutch, especially regarding how to improve universality. Summary of the Utility Model

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a test connection device for a gearbox electromagnetic clutch, with the aim of improving universality.

[0007] To achieve the above object, the technical solution adopted by the present utility model is as follows: a test connection device for a gearbox electromagnetic clutch, including an input adapter flange, an output adapter flange, a test chamber body for accommodating the electromagnetic clutch to be tested, and an input shaft and an output shaft which are arranged on the test chamber body and used for connecting the input shaft and the output shaft of the electromagnetic clutch to be tested. The input shaft and the output shaft are arranged to be rotatable. The input adapter flange is detachably connected to the input shaft, and the input adapter flange has multiple specifications.

[0008] The output adapter flange is detachably connected to the output shaft, and the output adapter flange has multiple specifications.

[0009] The output adapter flange is connected to the output shaft through splines.

[0010] The input shaft and the output shaft are coaxially arranged. The active end of the electromagnetic clutch to be tested is sleeved on the input shaft, and a separation spring is arranged between the active end and the output shaft.

[0011] The input shaft is installed on the test chamber body through a first bearing.

[0012] The output shaft is installed on the test chamber body through a second bearing.

[0013] The end of the input shaft is installed on the output shaft through a third bearing.

[0014] A fourth bearing is also arranged between the end of the input shaft and the output shaft. The fourth bearing is a flat thrust needle bearing.

[0015] For the test connection device of the gearbox electromagnetic clutch of the present utility model, the parts can be replaced, which can meet the test requirements of electromagnetic clutches of various sizes and improve the versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] This specification includes the following drawings, and the shown contents are respectively:

[0017] Figure 1 It is a cross-sectional view of the test connection device of the gearbox electromagnetic clutch of the present utility model;

[0018] The marks in the figure are: 1. Input adapter flange; 2. Test chamber mounting plate; 3. First bearing; 4. Coil; 5. Input shaft; 6. Active end; 7. Separation spring; 8. Third bearing; 9. Fourth bearing; 10. Second bearing; 11. Rear cover of the test chamber; 12. Output shaft; 13. Output adapter flange. DETAILED DESCRIPTION OF THE INVENTION

[0019] The following will, with reference to the accompanying drawings, further elaborate on the specific implementation manners of the present utility model through the description of embodiments, aiming to help those skilled in the art have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present utility model and facilitate its implementation.

[0020] It should be noted that in the following embodiments, the "first", "second", "third" and "fourth" do not represent an absolute distinction relationship in terms of structure and / or function, nor do they represent the execution order sequence, but are merely for the convenience of description.

[0021] As Figure 1 shown, the present utility model provides a test connection device for a gearbox electromagnetic clutch, which includes an input adapter flange 1, an output adapter flange 13, a test chamber for accommodating the electromagnetic clutch to be tested, and an input shaft 5 and an output shaft 12 that are arranged on the test chamber and used to connect the input shaft and the output shaft of the electromagnetic clutch to be tested. The input shaft 5 and the output shaft 12 are arranged to be rotatable. The input adapter flange 1 is detachably connected to the input shaft 5. The input adapter flange 1 is used to connect the driving device on the test bench. The input adapter flange 1 has various specifications, and different specifications of the input adapter flange 1 match different test benches. The input shaft 5 can have various specifications and match electromagnetic clutches of different specifications.

[0022] Specifically, as Figure 1 shown, the electromagnetic clutch to be tested mainly includes parts such as a coil 4 and a driving end 6. The driving end 6 of the electromagnetic clutch to be tested is sleeved on the input shaft 5. The driving end 6 is splined to the input shaft 5, and the driving end 6 rotates synchronously with the input shaft 5. A separating spring 7 is arranged between the driving end 6 and the output shaft 12. The end face of the output shaft 12 is provided with engaging teeth for cooperating with the driving end 6. The input shaft 5 and the output shaft 12 are coaxially arranged, and the input shaft 5 passes through the coil 4. Parts such as the coil 4 of the clutch to be tested are assembled according to technical specifications and fixed as a whole through the test chamber and installed on the test bench. The test rotation speed is controlled from the input adapter flange 1, and the output adapter flange 13 simulates the rotation speed and load of the driven end. The output adapter flange 13 is used to connect the load device on the test bench.

[0023] Preferably, the output adapter flange 13 is detachably connected to the output shaft 12. The output adapter flange 13 has various specifications, and different specifications of the output adapter flange 13 match different test benches. In this embodiment, as Figure 1 shown, the output adapter flange 13 is splined to the output shaft 12, and the output adapter flange 13 can rotate synchronously with the output shaft 12.

[0024] As Figure 1As shown in the figure, the test chamber body includes a test chamber mounting plate 2 and a test chamber rear cover 11. The test chamber mounting plate 2 and the test chamber rear cover 11 are connected by bolts and are detachable. The test chamber rear cover 11 has a hollow structure inside and is used to accommodate the electromagnetic clutch to be tested. The input shaft 5 is installed on the test chamber mounting plate 2 through the first bearing 3. The input shaft 5 passes through the test chamber mounting plate 2 and inserts into the inner cavity of the test chamber rear cover 11. The input adapter flange 1 is located outside the test chamber body. The output shaft 12 is installed on the test chamber rear cover 11 through the second bearing 10. The output adapter flange 13 is located outside the test chamber rear cover 11.

[0025] As Figure 1 shown, the end of the input shaft 5 is installed on the output shaft 12 through the third bearing 8, which is a cylindrical needle roller bearing. The output shaft 12 provides support for the input shaft 5. A fourth bearing 9 is also arranged between the end of the input shaft 5 and the output shaft 12. The fourth bearing 9 is a flat thrust needle roller bearing.

[0026] Working mode 1: The coil 4 of the electromagnetic clutch to be tested is not energized, and the electromagnetic clutch to be tested does not work. The test rotation speed is input through the input adapter flange 1. At this time, the separation spring 7 continuously pushes the driving end 6 of the electromagnetic clutch to be tested to move axially. The driving end 6 of the electromagnetic clutch to be tested cannot contact the engaging teeth of the output shaft 12. The input shaft 5 and the driving end 6 of the electromagnetic clutch to be tested continue to rotate at the same speed as the input adapter flange 1 under the support of the first bearing 3 and the third bearing 8, while the output shaft 12 remains stationary.

[0027] Working mode 2: The test rotation speed is input through the input adapter flange 1. The input adapter flange 1 drives the input shaft 5 to rotate. The coil 4 of the electromagnetic clutch to be tested is energized, and the electromagnetic clutch to be tested works. It pushes the driving end 6 of the electromagnetic clutch to be tested to continuously move axially to the left. After the driving end 6 overcomes the thrust of the separation spring 7, it engages with the engaging teeth of the output shaft 12. The output adapter flange 13 is spline-fitted with the output shaft 12 and starts to rotate synchronously with the output shaft 12, and the engagement is completed.

[0028] Working mode 3: The coil 4 of the electromagnetic clutch to be tested is de-energized. At this time, the separation spring 7 continuously pushes the driving end 6 of the electromagnetic clutch to be tested to move, so that the driving end 6 disengages from the engaging teeth of the output shaft 12, and the output shaft 12 and the output adapter flange 13 gradually stop rotating.

[0029] The electromagnetic clutch test connection device with the above structure has the following advantages:

[0030] First, the layout form of the clutch driving end 6 and the output shaft 12 and the entire structure can be adapted to electromagnetic clutches of various sizes;

[0031] Second, by replacing the input adapter flange 1 and the output adapter flange 3, the test scenario can be switched between any test benches and the simulated load can be controlled;

[0032] Third, most parts can be used interchangeably and can be disassembled and replaced repeatedly, which is convenient for replacing the object under test and worn parts.

[0033] The above is an exemplary description of the present utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the present utility model is not limited by the above methods. As long as various non-substantive improvements are made by adopting the method concept and technical solution of the present utility model; or without improvement, the above concept and technical solution of the present utility model are directly applied to other occasions, they are all within the protection scope of the present utility model.

Claims

1. Transmission electromagnetic clutch test connection device, characterized in that: It includes an input adapter flange, an output adapter flange, a test chamber body for accommodating the electromagnetic clutch to be measured, and is provided on the test chamber body and used to connect the input shaft and the output shaft of the electromagnetic clutch to be measured. The input shaft and the output shaft are arranged to be rotatable. The input adapter flange and the input shaft are detachably connected, and the input adapter flange has multiple specifications.

2. The electromagnetic clutch test connection device for a gearbox according to claim 1, characterized in that: The output adapter flange and the output shaft are detachably connected, and the output adapter flange has multiple specifications.

3. The electromagnetic clutch test connection device for a gearbox according to claim 2, characterized in that: The output adapter flange and the output shaft are connected by splines.

4. The electromagnetic clutch test connection device for a gearbox according to claim 2, wherein: The input shaft and the output shaft are coaxially arranged. The active end of the electromagnetic clutch to be measured is sleeved on the input shaft, and a separating spring is arranged between the active end and the output shaft.

5. The electromagnetic clutch test connection device for a gearbox according to any one of claims 1 to 4, characterized in that: The input shaft is installed on the test chamber body through a first bearing.

6. The electromagnetic clutch test connection device for a gearbox according to any one of claims 1 to 4, characterized in that: The output shaft is installed on the test chamber body through a second bearing.

7. The electromagnetic clutch test connection device for a gearbox according to any one of claims 1 to 4, characterized in that: The end of the input shaft is installed on the output shaft through a third bearing.

8. The electromagnetic clutch test connection device for a gearbox according to claim 7, characterized in that: A fourth bearing is also arranged between the end of the input shaft and the output shaft. The fourth bearing is a flat thrust needle bearing.

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