Gear automatic running-in test device for transmission

Abstract

The utility model discloses an automatic gear running-in test device for a transmission, and belongs to the technical field of transmission manufacturing. The positioning piece is connected to the bottom plate; the swing mechanism is hinged in the positioning piece, and the swing mechanism is connected in the positioning piece in a sliding mode; the elastic stop piece is arranged in the positioning piece; during testing, the transmission is locked on the bottom plate, the gear shifting arm extends into the transmission, the swing mechanism is pushed to slide on the positioning piece, so that the position of the gear shifting arm is changed, different gear shifting positions in the transmission are aligned, and the elastic stop piece abuts against the swing mechanism to limit the freedom degree of the swing mechanism in the sliding direction. The cylinder assembly stretches out and draws back to enable the push-pull rod universal joint to act on the swing mechanism to swing, swing of the swing mechanism is converted into reciprocating swing of the gear shifting arm, then the gear shifting arm pokes the transmission to conduct running-in, the running-in efficiency is high, the labor intensity is reduced, and the running-in quality is good.

Description

Technical Field

[0001] This utility model belongs to the field of transmission manufacturing technology, and in particular relates to an automatic gear break-in test device for transmissions. Background Technology

[0002] The break-in test is an important procedure before the transmission assembly leaves the factory. The break-in test can perform preliminary troubleshooting and performance improvement on the transmission system, shift control system, noise, etc., and is widely used by transmission manufacturers.

[0003] Currently, the break-in test time for each transmission is 15-30 minutes. The break-in test is done manually, which is time-consuming, labor-intensive, and subject to many human factors, resulting in poor break-in results. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic gear break-in test device for transmissions in order to solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automatic gear break-in test device for a transmission, comprising:

[0006] Base plate;

[0007] Positioning element, which is connected to the base plate;

[0008] A swing mechanism is hinged within the positioning member, and the swing mechanism is slidably connected within the positioning member;

[0009] An elastic stop is provided inside the positioning member, and the elastic stop locks the swing mechanism.

[0010] A shift arm, which is connected to the swing mechanism;

[0011] A cylinder assembly is connected to the base plate via a connecting seat, and the cylinder assembly is connected to the swing mechanism via a push-pull rod universal joint.

[0012] As a further description of the above technical solution:

[0013] The swing mechanism includes a shift shaft and a shift lever. The shift shaft is hinged in the positioning member, and the elastic stop member holds the shift shaft. One end of the shift lever is fixedly connected to the shift shaft, and the other end of the shift lever is connected to the push-pull rod universal joint.

[0014] As a further description of the above technical solution:

[0015] The shift shaft has multiple annular self-locking grooves. The elastic stop includes a self-locking spring and a limiting steel ball. The self-locking spring is located inside the positioning member. The limiting steel ball is inserted into any of the annular self-locking grooves and abuts against the end of the self-locking spring.

[0016] As a further description of the above technical solution:

[0017] The end of the shift lever is provided with a pin, which is inserted into the universal joint of the push-pull rod.

[0018] As a further description of the above technical solution:

[0019] The cylinder assembly is connected to a solenoid valve and a directional valve.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0021] 1. In this utility model, during testing, the transmission is locked to the base plate, the shift arm extends into the transmission, and the oscillating mechanism slides on the positioning part, causing the position of the shift arm to change, thereby aligning with different shift positions in the transmission. The elastic stop part abuts against the oscillating mechanism to limit the degree of freedom of the oscillating mechanism in the sliding direction. The extension and retraction of the cylinder assembly causes the universal joint of the push-pull rod to act on the oscillating mechanism to oscillate. The oscillation of the oscillating mechanism is converted into the reciprocating oscillation of the shift arm, thereby causing the shift arm to shift the transmission for break-in. The break-in efficiency is high, the labor intensity is reduced, and the break-in quality is good.

[0022] 2. In this utility model, the extension and retraction of the cylinder assembly causes the universal joint of the push-pull rod to swing the shift lever. The swing of the shift lever drives the shift shaft to rotate, which in turn causes the shift arm to swing back and forth to move the transmission for break-in.

[0023] 3. In this utility model, the degree of freedom in the sliding direction of the shift shaft is restricted by the limiting steel ball. The shift shaft is pushed forcefully to cause the limiting steel ball to retract due to the action of the self-locking spring. The limiting steel ball leaves the current annular self-locking groove and jumps into the adjacent annular self-locking groove to be stuck, thus completing the position change of the end of the shift arm and thereby realizing the running-in effect of the multi-gear of the transmission. Attached Figure Description

[0024] Figure 1 A schematic diagram of the overall structure of an automatic gear break-in test device for a transmission. Figure 1 .

[0025] Figure 2 A schematic diagram of the overall structure of an automatic gear break-in test device for a transmission. Figure 2 .

[0026] Figure 3 for Figure 2 The usage status is shown in the diagram.

[0027] Figure 4 This is an exploded view of an automatic gear break-in test device for a transmission.

[0028] Figure 5 A cross-sectional view of an automatic gear break-in test device for a transmission. Figure 1 .

[0029] Figure 6 A cross-sectional view of an automatic gear break-in test device for a transmission. Figure 2 .

[0030] Figure 7 for Figure 6 The usage status is shown in the diagram.

[0031] Legend:

[0032] 1. Base plate; 2. Positioning component; 3. Swing mechanism; 31. Shift shaft; 32. Shift lever; 4. Elastic stop component; 41. Self-locking spring; 42. Limiting steel ball; 5. Shift arm; 6. Cylinder assembly; 7. Connecting seat; 8. Push-pull rod universal joint; 9. Annular self-locking groove; 10. Pin. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figure 1-7 This utility model provides a technical solution: an automatic gear break-in test device for a transmission, comprising:

[0035] Base plate 1;

[0036] Positioning component 2 is connected to the base plate 1;

[0037] The swing mechanism 3 is hinged within the positioning member 2, and the swing mechanism 3 is slidably connected within the positioning member 2;

[0038] An elastic stop 4 is disposed within the positioning member 2, and the elastic stop 4 locks the swing mechanism 3.

[0039] The shift arm 5 is connected to the swing mechanism 3;

[0040] The cylinder assembly 6 is connected to the base plate 1 via a connecting seat 7, and the cylinder assembly 6 is connected to the swing mechanism 3 via a push-pull rod universal joint 8.

[0041] The swing mechanism 3 includes a shift shaft 31 and a shift lever 32. The shift shaft 31 is hinged in the positioning member 2. The elastic stop member 4 holds the shift shaft 31. One end of the shift lever 32 is fixedly connected to the shift shaft 31, and the other end of the shift lever 32 is connected to the push-pull rod universal joint 8. The extension and retraction of the cylinder assembly 6 causes the push-pull rod universal joint 8 to swing the shift lever 32. The swing of the shift lever 32 drives the shift shaft 31 to rotate, thereby causing the shift arm 5 to swing back and forth to shift the transmission for break-in.

[0042] The shift shaft 31 is provided with multiple annular self-locking grooves 9. The elastic stop 4 includes a self-locking spring 41 and a limiting steel ball 42. The self-locking spring 41 is located in the positioning member 2. The limiting steel ball 42 is inserted into any of the annular self-locking grooves 9 and abuts against the end of the self-locking spring 41. The limiting steel ball 42 restricts the degree of freedom of the shift shaft 31 in the sliding direction. When the shift shaft 31 is pushed, the limiting steel ball 42 acts on the self-locking spring 41 to retract. The limiting steel ball 42 leaves the current annular self-locking groove 9 and jumps into the adjacent annular self-locking groove 9 to be locked, thus completing the position change of the end of the shift arm 5, thereby realizing the running-in effect of the transmission's multiple gears.

[0043] The end of the shift lever 32 is provided with a pin 10, which is inserted into the push-pull rod universal joint 8 to ensure the relative sliding between the shift lever 32 and the push-pull rod universal joint 8, thereby adjusting the position of the shift shaft 31 and the shift arm 5.

[0044] The cylinder assembly 6 is connected to a solenoid valve and a directional valve, which facilitates the control of the extension and retraction of the cylinder assembly 6.

[0045] Working principle: First, during testing, the transmission is locked to the base plate 1, and the shift arm 5 extends into the transmission. Second, the oscillating mechanism 3 is pushed to slide on the positioning member 2, causing the position of the shift arm 5 to change, thereby aligning with different shift positions within the transmission. The elastic stop member 4 abuts against the oscillating mechanism 3 to restrict its degree of freedom in the sliding direction. Specifically, the limiting steel ball 42 restricts the degree of freedom of the shift shaft 31 in the sliding direction. Pushing the shift shaft 31 forcefully causes the limiting steel ball 42 to retract the self-locking spring 41. The limiting steel ball 42 leaves the current annular self-locking groove 9 and jumps into the adjacent annular self-locking groove 9 to lock, completing the position change of the end of the shift arm 5. Finally, the extension and retraction of the cylinder assembly 6 causes the push-pull rod universal joint 8 to swing the swing mechanism 3. The swing of the swing mechanism 3 is converted into the reciprocating swing of the shift arm 5. Specifically, the extension and retraction of the cylinder assembly 6 causes the push-pull rod universal joint 8 to swing the shift lever 32. The swing of the shift lever 32 drives the shift shaft 31 to rotate, thereby causing the shift arm 5 to swing back and forth to shift the transmission for break-in.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic gear break-in test device for a transmission, characterized in that: include: Base plate (1); Positioning element (2), which is connected to the base plate (1); A swing mechanism (3) is hinged within the positioning member (2), and the swing mechanism (3) is slidably connected within the positioning member (2); An elastic stop (4) is provided inside the positioning member (2), and the elastic stop (4) locks the swing mechanism (3); The shift arm (5) is connected to the swing mechanism (3); The cylinder assembly (6) is connected to the base plate (1) via a connecting seat (7), and the cylinder assembly (6) is connected to the swing mechanism (3) via a push-pull rod universal joint (8).

2. The automatic gear break-in test device for a transmission according to claim 1, characterized in that, The swing mechanism (3) includes a shift shaft (31) and a shift lever (32). The shift shaft (31) is hinged in the positioning member (2). The elastic stop member (4) holds the shift shaft (31). One end of the shift lever (32) is fixedly connected to the shift shaft (31), and the other end of the shift lever (32) is connected to the push-pull rod universal joint (8).

3. The automatic gear break-in test device for a transmission according to claim 2, characterized in that, The shift shaft (31) is provided with a plurality of annular self-locking grooves (9). The elastic stop (4) includes a self-locking spring (41) and a limiting steel ball (42). The self-locking spring (41) is located in the positioning member (2). The limiting steel ball (42) is inserted into any of the annular self-locking grooves (9) and abuts against the end of the self-locking spring (41).

4. The automatic gear break-in test device for a transmission according to claim 3, characterized in that, The end of the shift lever (32) is provided with a pin (10), which is inserted into the universal joint (8) of the push-pull rod.

5. The automatic gear break-in test device for a transmission according to claim 4, characterized in that, The cylinder assembly (6) is connected to the solenoid valve and the directional valve.

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