Fatigue test tool for clutch release fork and release bracket

Abstract

The utility model discloses a clutch release fork and release support fatigue test tool comprising a bottom plate and a top plate, and a pillar is arranged between the bottom plate and the top plate; an air cylinder mounting plate is hinged to the bottom plate, and an air cylinder is fixedly mounted on the air cylinder mounting plate; a separation support is fixedly arranged at the bottom of the top plate, and a clutch separation shifting fork is rotatably arranged on the separation support. The top plate and the air cylinder mounting plate guarantee the actual working states of the clutch release fork and the release support, when the air cylinder works, a ball head at the upper end of the air cylinder penetrates through a hole in the release support and then is fixed along a ball socket in the clutch release fork, and then the clutch release fork is pushed to reset along with an electromagnetic valve of the air cylinder. And the ball head at the upper end of the air cylinder returns from the ball socket of the clutch release fork, so that the fatigue test is repeatedly carried out, and the technical problem that a fatigue test tool in the prior art cannot carry out fatigue test on the clutch release fork and the release bracket at the same time is solved.

Description

Technical Field

[0001] This utility model belongs to the field of clutches and relates to testing fixtures, specifically a fatigue testing fixture for a clutch release fork and release bracket. Background Technology

[0002] As an important part of the transmission system, the clutch release fork and release bracket are prone to failure if they break, which can lead to power system interruption and serious traffic accidents. Therefore, bench fatigue tests are required for the clutch release fork and release bracket.

[0003] Existing fatigue tests for clutch release forks are mostly based on whole-vehicle testing, requiring testing of many related parts, consuming significant resources, and resulting in low test stability. Failure of other components often slows down the fatigue test process. Therefore, a more efficient fatigue testing fixture for clutch release forks is needed. Current clutch release fork fatigue testing devices often only target the clutch release fork itself, neglecting fatigue testing of the release bracket.

[0004] Ignoring fatigue testing of the clutch release bracket often poses safety hazards to drivers. Therefore, fatigue testing of both the clutch release fork and the release bracket is necessary. Currently, fatigue testing benches for clutch release forks are often only designed for one type of clutch release fork. This means that only one type of clutch release fork can be matched for fatigue testing. When testing different clutch release forks, the different fork arm lengths make it impossible to place them on the existing fixture, requiring the design of a new fatigue testing fixture. This approach is time-consuming and labor-intensive. Therefore, designing a fatigue testing fixture solution that is compatible with multiple types of clutch release forks is very meaningful. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a fatigue testing fixture for clutch release forks and release brackets, thereby solving the technical problems that existing fatigue testing fixtures cannot simultaneously perform fatigue tests on clutch release forks and release brackets, and are not applicable to various specifications of clutch release forks and release brackets.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A fatigue testing fixture for a clutch release fork and release bracket includes a base plate and a top plate, with a support column disposed between the base plate and the top plate;

[0008] A cylinder mounting plate is hinged to the base plate, and a cylinder is fixedly mounted on the cylinder mounting plate; a separation bracket is fixedly provided at the bottom of the top plate, and a clutch release fork is rotatably mounted on the separation bracket; the bottom of the clutch release fork passes through the top plate.

[0009] A connecting rod is provided at the top of the cylinder, and a ball head is provided at the end of the connecting rod. The ball head is engaged with the ball socket at the bottom of the clutch release fork.

[0010] The cylinder is connected to an air supply structure, which includes a solenoid valve connected to the cylinder. The solenoid valve is connected to a first flow regulating valve and a second flow regulating valve. The inlet of the first flow regulating valve is connected to an air source through a pipeline, and a pressure regulating valve is provided on the pipeline. The outlet of the second flow regulating valve is open.

[0011] This utility model also includes the following technical features:

[0012] The top of the support column is fixedly connected to the top plate by an upper plate nut.

[0013] The top plate and the separation bracket are connected by separation bracket bolts.

[0014] The top plate has two sets of bolt mounting holes, each set of bolt mounting holes including two pairs of symmetrically arranged bolt mounting holes; the spacing of the bolt mounting holes in different sets is different, and the spacing of each pair of bolt mounting holes in the same set is the same, and the bolts of the separation bracket are installed in the bolt mounting holes.

[0015] A hinge is provided on the base plate, and a hydraulic rod is provided on the hinge. The end of the hydraulic rod is hinged to the bottom of the cylinder mounting plate.

[0016] The cylinder is fixed to the cylinder mounting plate by cylinder bolts.

[0017] The support column includes a first cylindrical end and a second cylindrical end with successively decreasing hole diameters. The first cylindrical end is disposed in the mounting hole of the top plate, and a plurality of gaskets are disposed between the top of the second cylindrical end and the top plate.

[0018] The separation bracket is provided with a shift fork shaft, and a clutch separation shift fork is rotatably mounted on the shift fork shaft.

[0019] Compared with the prior art, the beneficial technical effects of this utility model are:

[0020] (I) The top plate and cylinder mounting plate of this utility model ensure the actual working state of the clutch release fork and the release bracket. When the cylinder is working, the ball head at the upper end of the cylinder passes through the hole on the release bracket and then moves along the ball socket on the clutch release fork, thereby pushing the clutch release fork. As the solenoid valve of the cylinder resets, the ball head at the upper end of the cylinder returns to its position from the ball socket of the clutch release fork. This process is repeated to perform fatigue tests, which solves the technical problem that the fatigue test fixture in the prior art cannot perform fatigue tests on the clutch release fork and the release bracket at the same time.

[0021] (II) The top plate of this utility model is provided with bolt mounting holes of different spans, which can be matched with different models of separation brackets. Compared with the fact that a single platform can only be matched with a single separation bracket, the top plate can effectively reduce labor costs and solve the technical problem that the fatigue test fixtures in the prior art cannot be applied to various specifications of clutch separation forks and separation brackets.

[0022] (III) The cylinder mounting plate, hinge and hydraulic rod designed in this utility model can adjust the angle of the cylinder ball head during fatigue testing, ensuring that the cylinder ball head will not fall out of the clutch release fork ball socket during the test. Attached Figure Description

[0023] Figure 1 This is an isometric drawing of this utility model;

[0024] Figure 2 This is an installation diagram of this utility model;

[0025] Figure 3 This is a top view of the present invention;

[0026] Figure 4 yes Figure 3 Sectional view of section AA in the image;

[0027] Figure 5 yes Figure 3 Partial sectional view of BB in the middle;

[0028] Figure 6 This is a connection diagram of the gas supply structure in this utility model.

[0029] The meanings of the labels in the diagram are as follows: 1-Clutch release fork, 2-Fork shaft, 3-Release bracket bolt, 4-Upper plate nut, 5-Top plate, 6-Release bracket, 7-Cylinder bolt, 8-Cylinder, 9-Cylinder mounting plate, 10-Hinge, 11-Hydraulic rod, 12-Base plate, 13-Support column, 14-Air source, 15-Pressure regulating valve, 16-First flow regulating valve, 17-Second flow regulating valve, 18-Solenoid valve.

[0030] The specific content of this utility model will be further explained in detail below with reference to the embodiments. Detailed Implementation

[0031] It should be noted that, unless otherwise specified, all components in this utility model are components known in the art.

[0032] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments. All equivalent modifications made based on the technical solutions of this application fall within the protection scope of the present invention.

[0033] This utility model discloses a fatigue testing fixture for a clutch release fork and release bracket, including a base plate 12 and a top plate 5, with a support column 13 provided between the base plate 12 and the top plate 5;

[0034] A cylinder mounting plate 9 is hinged to the base plate 12, and a cylinder 8 is fixedly mounted on the cylinder mounting plate 9; a separation bracket 6 is fixedly provided at the bottom of the top plate 5, and a clutch separation fork 1 is rotatably provided on the separation bracket 6; the bottom of the clutch separation fork 1 passes through the top plate 5.

[0035] A connecting rod is provided on the top of the cylinder 8, and a ball head is provided at the end of the connecting rod. The ball head is matched with the ball socket at the bottom of the clutch release fork 1.

[0036] The cylinder 8 is connected to an air supply structure, which includes a solenoid valve 18 connected to the cylinder 8. A first flow regulating valve 16 and a second flow regulating valve 17 are connected to the solenoid valve 18. The inlet end of the first flow regulating valve 16 is connected to an air source 14 through a pipeline, and a pressure regulating valve 15 is installed on the pipeline. The outlet end of the second flow regulating valve 17 is open.

[0037] In the above technical solution, when the cylinder mounting plate 9 rotates, it can drive the cylinder 8 to rotate together, thereby adjusting the position of the cylinder 8 so that its ball head can enter the center of the ball socket of the clutch release fork 1, and push the clutch release fork 1 to perform fatigue test.

[0038] The top plate 5 and cylinder mounting plate 9 in this solution ensure the actual working state of the clutch release fork 1 and the release bracket 6. When the cylinder is working, the ball head at the upper end of the cylinder 8 passes through the hole on the release bracket 6 and then moves along the ball socket on the clutch release fork 1, thereby pushing the clutch release fork 1. As the solenoid valve of the cylinder 8 resets, the ball head at the upper end of the cylinder 8 returns to its position from the ball socket of the clutch release fork 1. This process is repeated to perform fatigue tests, which solves the technical problem that the fatigue testing fixture in the prior art cannot perform fatigue tests on the clutch release fork and the release bracket at the same time.

[0039] This utility model also includes the following technical features:

[0040] The top of the support column 13 is fixedly connected to the top plate 5 by the upper plate nut 4.

[0041] In the above technical solution, bolted connections facilitate installation and disassembly.

[0042] The top plate 5 and the separation bracket 6 are connected by the separation bracket bolts 3.

[0043] In the above technical solution, bolted connections facilitate installation and disassembly.

[0044] The top plate 5 has two sets of bolt mounting holes, each set of bolt mounting holes includes two pairs of symmetrically arranged bolt mounting holes; the spacing of the bolt mounting holes in different sets is different, and the spacing of each pair of bolt mounting holes in the same set is the same, and the bolt mounting holes are equipped with separation bracket bolts 3.

[0045] In the above technical solution, bolt mounting holes with different spans are provided on the top plate, which can match different models of separation brackets 6. Compared with the fact that a single test stand can only match one type of separation bracket 6, the top plate can effectively reduce labor costs and solve the technical problem that the fatigue test fixtures in the existing technology cannot be applied to various specifications of clutch release forks and release brackets.

[0046] Preferably, the spacing between the bolt mounting holes of the two sets of bolt mounting holes is 121mm and 191mm respectively, which can be compatible with various separate brackets 6.

[0047] A hinge 10 is provided on the base plate 12, and a hydraulic rod 11 is provided on the hinge 10. The end of the hydraulic rod 11 is hinged to the bottom of the cylinder mounting plate 9.

[0048] In the above technical solution, the cylinder mounting plate 9, hinge 10 and hydraulic rod 11 can adjust the angle of the cylinder ball head during the fatigue test, ensuring that the cylinder ball head will not fall out of the clutch release fork ball socket during the test.

[0049] Cylinder 8 is fixed to cylinder mounting plate 9 by cylinder bolts 7.

[0050] In the above technical solution, the cylinder bolt 7 is used to adjust and fix the cylinder mounting plate 9.

[0051] The support column 13 includes a first cylindrical end and a second cylindrical end with successively decreasing hole diameters. The first cylindrical end is disposed in the mounting hole of the top plate 5, and multiple gaskets are disposed between the top of the second cylindrical end and the top plate 5.

[0052] In the above technical solution, the height of the tooling can be adjusted by the top plate 5 and the support column 13, which provides convenience for the operator during the installation of the separation bracket 6; specifically, the height of the top plate 5 can be adjusted by adding shims 5, thereby adjusting the spatial position of the separation bracket 6 and matching it with the cylinder 8.

[0053] The separation bracket 6 is provided with a shift fork shaft 2, and a clutch separation shift fork 1 is rotatably provided on the shift fork shaft 2.

[0054] In the above technical solution, the separation bracket 6 and the shift fork shaft 2 are axially positioned by the shift fork shaft 2.

Claims

1. A clutch release fork and release bearing fatigue test fixture comprising a base plate (12) and a top plate (5), characterized in that, A support column (13) is arranged between the bottom plate (12) and the top plate (5); A cylinder mounting plate (9) is hingedly arranged on the bottom plate (12), and a cylinder (8) is fixedly arranged on the cylinder mounting plate (9); a separation support (6) is fixedly arranged at the bottom of the top plate (5), and a clutch separation yoke (1) is rotatably arranged on the separation support (6); the bottom of the clutch separation yoke (1) penetrates through the top plate (5); A connecting rod is arranged at the top of the cylinder (8), and a ball head is arranged at the end of the connecting rod, which is correspondingly matched with a ball socket at the bottom of the clutch separation yoke (1); A gas supply structure is connected to the cylinder (8), which comprises an electromagnetic valve (18) connected to the cylinder (8), a first flow regulating valve (16) and a second flow regulating valve (17) connected to the electromagnetic valve (18), respectively, a gas source (14) connected to the inlet end of the first flow regulating valve (16) through a pipeline, and a pressure regulating valve (15) arranged on the pipeline; and the outlet end of the second flow regulating valve (17) is open.

2. The clutch release fork and release bearing fatigue test fixture of claim 1, wherein, The top of the support column (13) is fixedly connected with the top plate (5) through an upper plate nut (4).

3. The clutch release fork and release bearing fatigue test fixture of claim 1, wherein, The top plate (5) is connected with the separation support (6) through a separation support bolt (3).

4. The clutch release fork and release bearing fatigue test fixture of claim 3, wherein: Two groups of bolt mounting holes are arranged on the top plate (5), each group of bolt mounting holes comprises two pairs of symmetrically arranged bolt mounting holes; the spacing of the bolt mounting holes in different groups is different, the spacing of each pair of bolt mounting holes in the same group is the same, and the separation support bolt (3) is arranged in the bolt mounting hole.

5. The clutch release fork and release bearing fatigue test fixture of claim 1, wherein, A hinge (10) is arranged on the bottom plate (12), and a hydraulic rod (11) is arranged on the hinge (10); the end of the hydraulic rod (11) is hingedly connected with the bottom of the cylinder mounting plate (9).

6. The clutch release fork and release bearing fatigue test fixture of claim 1, wherein, The cylinder (8) is fixed on the cylinder mounting plate (9) through a cylinder bolt (7).

7. The clutch release fork and release bearing fatigue test fixture of claim 1, wherein, The support column (13) comprises a first cylindrical end and a second cylindrical end with gradually decreasing hole diameters, the first cylindrical end is arranged in the mounting hole of the top plate (5), and a plurality of gaskets are arranged between the top of the second cylindrical end and the top plate (5).

8. The clutch release fork and release bearing fatigue test fixture of claim 1, wherein, A yoke shaft (2) is arranged on the separation support (6), and the clutch separation yoke (1) is rotatably arranged on the yoke shaft (2).

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