Transmission air tightness detection tool

Abstract

The utility model discloses a transmission air tightness detection tool, and relates to the detection tool technology field, the transmission air tightness detection tool comprises a port body, the port body is internally provided with an antiskid mechanism, a bevel gear 1 drives a bevel gear 2 to rotate, the bevel gear 2 drives an iris assembly to rotate, the iris assembly drives a connecting strip to slide along a guide frame, and the connecting strip is connected with the antiskid mechanism. The friction force between the anti-sliding blocks and the inner wall of the through opening body is increased through pressure sensors, loosening and shaking of the anti-sliding blocks during use are reduced, and stable connection of the anti-sliding blocks and the through opening body is guaranteed; one side of a connecting rod is fixedly connected with a magnet block, an inserting block is fixedly connected with a supporting disc, and a first limiting bolt is rotated; the first limiting bolt is separated from the connecting rod, then the guide frame is moved, the magnet block is separated from the sealing sleeve, the sealing sleeve and the first limiting ring can be detached, the sealing sleeve can be replaced conveniently, the device is suitable for combined use of port bodies with different diameters, and the applicability of the whole device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection frock technical field especially relates to a transmission air tightness detection frock. BACKGROUND

[0002] Transmission air tightness detection frock is special equipment for detecting transmission sealing performance. It applies certain pressure or vacuum to the inside of transmission by simulating the working environment of transmission, and then detects whether there is gas leakage, so as to judge whether the sealing performance of transmission meets the standard.

[0003] As China patent CN218937645U discloses a kind of detection transmission air tightness frock, include: frock shell body, sealing cover of being set on frock shell body and adjusting mechanism being located in frock shell body;Sealing cover inner wall is equipped with extrusion piece;Adjusting mechanism includes respectively being located in the drive piece of both sides of frock shell body, connecting rod connected with drive piece and slider connected with connecting rod, drive piece is inclined surface setting on the side close to extrusion piece, elastic piece is arranged between two drive pieces, by lifting sealing cover, drive extrusion piece to move away from drive piece, to make drive piece move away from each other under the action of elastic piece, to make connecting rod drive slider move away from each other, to make slider abut on the end face of differential on the mouth.

[0004] In the above patent, although the sliding block solves the problem of inconvenient reinstallation of the plugging frock after deviation, but with the increase of use time, the contact part of sliding block and differential will be worn, and the wear will reduce the matching precision between sliding block and differential inner wall, and the gap will increase, when vibration occurs in the use process of differential, it will cause sliding block to shake in the gap, and it is difficult to maintain stable connection. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problem that the contact part of sliding block and differential will be worn, and the wear will reduce the matching precision between sliding block and differential inner wall, and the gap will increase, when vibration occurs in the use process of differential, it will cause sliding block to shake in the gap, and it is difficult to maintain stable connection in prior art, and proposes a kind of transmission air tightness detection frock.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a transmission air tightness detection frock, including the through mouth body, the through mouth body is installed with the antiskid mechanism in, and the antiskid mechanism includes the antiskid block, guide frame and motor, the antiskid block one side fits with the antiskid strip, the antiskid block one side inserts with the connecting strip, the connecting strip one side and the sliding connection between guide frame, the guide frame top rotatable connection has iris assembly, the iris assembly one end and the connecting strip articulate, the iris assembly top fixed connection has bevel gear no.

[0007] Preferably, the motor top fixed connection has the support disc, and the support disc bottom and guide frame fixed connection.

[0008] Preferably, the support disc top fixed connection has the magnet block, and the magnet block outer ring surface fixed connection has the connecting rod, and the connecting rod one side lap has the sealing sleeve.

[0009] Preferably, the sealing sleeve and connecting rod between through threaded connection has the limit pin no., and the sealing sleeve and magnet block between through magnetic connection.

[0010] Preferably, the support disc top fixed connection has the plug-in block, and the plug-in block top and sealing sleeve inner wall clamping connection.

[0011] Preferably, the sealing sleeve one side fixed connection has the limit ring no., and the limit ring no. through threaded connection has the limit pin no. 2, and the limit pin no. 2 end and the through mouth body are resisted.

[0012] Preferably, the limit ring no. bottom plug-in has the limit ring no. 2, and the limit ring no. 2 inner ring surface and through mouth body are connected through the threaded connection.

[0013] Compared with the prior art, the utility model has the advantages and positive effects that:

[0014] 1、In the utility model, the bevel gear no. and the bevel gear no. 2 mesh, and the connecting strip and the antiskid block fixed connection, through motor drive bevel gear no. rotation, and bevel gear no. drive bevel gear no. 2 rotation, and bevel gear no. 2 drive iris assembly rotation, and iris assembly drive connecting strip along guide frame sliding, realize the position adjustment of antiskid block, through pressure sensor increase the friction between antiskid block and the through mouth body inner wall, reduce the looseness and the shake of antiskid block when using, guarantee the stable connection of antiskid block and the through mouth body.

[0015] 2. In this utility model, one side of the connecting rod is fixedly connected to the magnet block, and the plug block is fixedly connected to the support plate. By rotating the limiting bolt, the limiting bolt is separated from the connecting rod. Then, the guide frame is moved to separate the magnet block from the sealing sleeve. This allows for the disassembly of the sealing sleeve and the limiting ring, facilitating the replacement of the sealing sleeve. It is adaptable to the combined use of different diameter through-hole bodies, improving the applicability of the entire device. Attached Figure Description

[0016] Figure 1 A three-dimensional structural schematic diagram of a gearbox air tightness testing fixture is provided for this utility model;

[0017] Figure 2 This utility model provides a schematic diagram of the connection between the limiting bolt and the connecting rod structure of a gearbox airtightness testing fixture;

[0018] Figure 3 This utility model provides a schematic diagram of the support plate structure installation for a gearbox air tightness testing fixture.

[0019] Figure 4 This utility model provides a schematic diagram of the installation of bevel gear one and bevel gear two in a gearbox air tightness testing fixture;

[0020] Figure 5 This utility model provides a schematic diagram of the iris component structure installation for a gearbox airtightness testing fixture.

[0021] Legend: 1. Sealing sleeve; 2. Limiting bolt one; 3. Limiting ring one; 4. Limiting ring two; 5. Support plate; 6. Limiting bolt two; 7. Through-hole body; 8. Connecting rod; 9. Magnet block; 10. Insertion block; 11. Pressure sensor; 12. Anti-slip block; 13. Guide frame; 14. Bevel gear one; 15. Bevel gear two; 16. Anti-slip strip; 17. Connecting strip; 18. Motor; 19. Iris assembly. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Example 1: Refer to Figures 1-5As shown: A gearbox air tightness testing fixture includes a through-hole body 7. An anti-slip mechanism is installed inside the through-hole body 7. The anti-slip mechanism includes an anti-slip block 12, a guide frame 13, and a motor 18. An anti-slip strip 16 is embedded in one side of the anti-slip block 12, and a connecting strip 17 is inserted into one side of the anti-slip block 12. One side of the connecting strip 17 is slidably connected to the guide frame 13. An iris assembly 19 is rotatably connected to the top of the guide frame 13. One end of the iris assembly 19 is hinged to the connecting strip 17. A second bevel gear 15 is fixedly connected to the top of the iris assembly 19. A first bevel gear 14 meshes with one side of the second bevel gear 15. One side of the first bevel gear 14 is fixedly connected to the motor 18. The motor 18 is electrically connected to a pressure sensor 11. One side of the pressure sensor 11 is embedded in the anti-slip block 12. One side of the anti-slip block 12 overlaps with the inner wall of the through-hole body 7. A support plate 5 is fixedly connected to the top of the motor 18. The bottom of the support plate 5 is fixedly connected to the guide frame 13.

[0025] The anti-slip strip 16 with an anti-slip coating increases the friction between the anti-slip block 12 and the inner wall of the port body 7. The position of the anti-slip block 12 can be detected by the pressure sensor 11, which helps the external control to determine whether the anti-slip block 12 is in contact with the inner wall of the port body 7. The connecting strip 17 connects the anti-slip block 12 to the iris assembly 19. The support plate 5 protects the top of the motor 18, reducing collision damage to the top of the motor 18. The motor 18 provides power for the rotation of the first bevel gear 14. The first bevel gear 14 drives the second bevel gear 15 to rotate, achieving synchronous rotation of the second bevel gear 15 and the iris assembly 19. The iris assembly 19 can then adjust the position of the anti-slip block 12. When the anti-slip block 12 moves, the guide frame 13 guides the movement of the connecting strip 17 and the anti-slip block 12, thus achieving smooth movement of the anti-slip block 12 and the connecting strip 17.

[0026] Example 2: Figures 1-3 As shown, a magnet block 9 is fixedly connected to the top of the support plate 5, and a connecting rod 8 is fixedly connected to the outer ring surface of the magnet block 9. A sealing sleeve 1 overlaps on one side of the connecting rod 8. A limit bolt 2 is threadedly connected between the sealing sleeve 1 and the connecting rod 8. The sealing sleeve 1 and the magnet block 9 are magnetically connected. A plug block 10 is fixedly connected to the top of the support plate 5. The top of the plug block 10 is engaged with the inner wall of the sealing sleeve 1. A limit ring 3 is fixedly connected to one side of the sealing sleeve 1. A limit bolt 6 is threadedly connected to the limit ring 3. The end of the limit bolt 6 abuts against the through-hole body 7. A limit ring 4 is inserted into the bottom of the limit ring 3. The inner ring surface of the limit ring 4 is threadedly connected to the through-hole body 7.

[0027] The magnet block 9 facilitates the connection between the top of the support plate 5 and the inner wall of the sealing sleeve 1. The plug block 10 guides the connection between the support plate 5 and the sealing sleeve 1. The connection between the limiting bolt 1 2 and the connecting rod 8 strengthens the connection between the support plate 5 and the sealing sleeve 1, reducing loosening of the support plate 5 during use and facilitating quick disassembly of the support plate 5. The limiting bolt 2 6 guides the installation of the limiting ring 1 3 on the top of the port body 7 and limits the installation of the limiting ring 1 3, reducing loosening of the limiting ring 1 3 and the sealing sleeve 1 during use.

[0028] The usage and working principle of this device are as follows: First, install the second limiting ring 4 on the outside of the port body 7. Then, insert the first limiting ring 3 into the top of the second limiting ring 4. Use the external controller to drive the motor 18 to work. The motor 18 drives the first bevel gear 14 to rotate. The first bevel gear 14 drives the second bevel gear 15 and the iris assembly 19 to rotate on the top of the guide frame 13, opening the iris assembly 19. At this time, under the drive of the iris assembly 19, the connecting strip 17 slides inside the guide frame 13, driving the anti-sliding block 12 to move towards the inner wall of the port body 7, so that one side of the anti-sliding block 12 fits against the inner wall of the port body 7. When the device is in contact with the material, the pressure sensor 11 sends a signal to the external controller. At this time, the controller controls the motor 18 to stop working and then rotates the limit bolt 6 so that the end of the limit bolt 6 abuts against the through-hole body 7. The auxiliary sealing sleeve 1 is stably installed outside the through-hole body 7, completing the sealing of one end of the through-hole body 7, which facilitates the subsequent air tightness test of the gearbox. When it is necessary to replace the external sealing sleeve 1, the entire device is inverted, and then the sealing sleeve 1 is separated from the connecting rod 8. The guide frame 13 is moved upward so that the magnet block 9 is separated from the sealing sleeve 1, which can realize the disassembly of the guide frame 13 and the support plate 5.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A gearbox air tightness testing fixture, comprising a port body (7), characterized in that: The port body (7) is equipped with an anti-slip mechanism, which includes an anti-slip block (12), a guide frame (13), and a motor (18). An anti-slip strip (16) is fitted into one side of the anti-slip block (12), and a connecting strip (17) is inserted into one side of the anti-slip block (12). One side of the connecting strip (17) is slidably connected to the guide frame (13). An iris assembly (19) is rotatably connected to the top of the guide frame (13). One end of the iris assembly (19) is connected to... The connecting strip (17) is hinged, and the top of the iris assembly (19) is fixedly connected to a bevel gear two (15). One side of the bevel gear two (15) is meshed with a bevel gear one (14). One side of the bevel gear one (14) is fixedly connected to a motor (18). The motor (18) is electrically connected to a pressure sensor (11). One side of the pressure sensor (11) is fitted with an anti-slip block (12), and one side of the anti-slip block (12) overlaps with the inner wall of the through-hole body (7).

2. The gearbox air tightness testing fixture according to claim 1, characterized in that: The top of the motor (18) is fixedly connected to a support plate (5), and the bottom of the support plate (5) is fixedly connected to a guide frame (13).

3. The gearbox air tightness testing fixture according to claim 2, characterized in that: A magnet block (9) is fixedly connected to the top of the support plate (5), and a connecting rod (8) is fixedly connected to the outer ring surface of the magnet block (9). A sealing sleeve (1) overlaps one side of the connecting rod (8).

4. The gearbox air tightness testing fixture according to claim 3, characterized in that: The sealing sleeve (1) and the connecting rod (8) are connected by a limit bolt (2) through a threaded connection, and the sealing sleeve (1) and the magnet block (9) are connected by a magnetic connection.

5. The gearbox air tightness testing fixture according to claim 3, characterized in that: The top of the support plate (5) is fixedly connected to a plug block (10), and the top of the plug block (10) is engaged with the inner wall of the sealing sleeve (1).

6. The gearbox air tightness testing fixture according to claim 5, characterized in that: One side of the sealing sleeve (1) is fixedly connected to a limiting ring (3), and the limiting ring (3) is connected to a limiting bolt (6) by a thread. The end of the limiting bolt (6) abuts against the port body (7).

7. The gearbox air tightness testing fixture according to claim 6, characterized in that: The bottom of the first limiting ring (3) is inserted into the second limiting ring (4), and the inner ring surface of the second limiting ring (4) is connected to the through body (7) by a thread.

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