Gas detection plugging device for ABS sensor mounting hole of rear axle housing

Abstract

The utility model relates to a gas detection plugging device for a rear axle housing ABS sensor mounting hole. The gas detection plugging device comprises a lower extrusion plate, a sealing ring, an upper extrusion plate, an extrusion bolt, a pull rod, a baffle, a stop pin and a guide pin, the lower extrusion plate and the upper extrusion plate get close to each other to extrude the sealing ring when the pull rod drives the extrusion bolt to rotate, so that the sealing ring is compressed in the vertical direction and expanded in the circumferential direction, and the inner hole of the workpiece and the plugging device are completely sealed. According to the utility model, the ABS sensor mounting hole of the rear axle housing, which cannot be plugged by equipment, can meet the plugging requirement through simple operation, so that the backflow of the production process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, in particular to an air detection and blocking device for an ABS sensor mounting hole of a rear axle housing. Background Art

[0002] The automotive industry, a pillar industry, requires a large number of components manufactured across various regions. The rear axle housing of a vehicle's drivetrain is typically constructed from pressed and welded steel, creating a cavity for the assembly of moving parts such as axles, reducers, and differentials. To ensure proper cooling and wear prevention of these moving parts, lubricating oil must be injected into the housing, making its sealing performance crucial.

[0003] To this end, each rear axle housing needs to be tested for airtightness during manufacturing to avoid leakage. In order to test its airtightness during the production process, it is necessary to seal some holes for testing, such as the holes for installing ABS sensors.

[0004] Previously, the ABS sensor mounting hole was generally sealed by the sealing component on the gas inspection equipment covering the mounting hole plane as a whole; however, due to the differences in workpieces, some ABS sensor mounting holes have angles that the equipment cannot adapt to. The only option is to adjust the process and process the ABS mounting hole after gas inspection, which can cause backflow in the processing and affect on-site production. Utility Model Content

[0005] The purpose of the utility model is to solve the defects of the prior art and provide an air detection and blocking device for the mounting hole of the ABS sensor of the rear axle housing.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] An air detection sealing device for a rear axle housing ABS sensor mounting hole, comprising a lower extrusion plate, a sealing ring, an upper extrusion plate, an extrusion bolt, a lever, a baffle, a baffle pin, and a guide pin;

[0008] When the lever drives the extrusion bolt to rotate, the lower extrusion plate and the upper extrusion plate approach each other and squeeze the sealing ring, causing the sealing ring to be compressed in the vertical direction and expanded in the circumferential direction, thereby completely sealing the inner hole of the workpiece and the sealing device.

[0009] Furthermore, when the pull rod drives the extrusion bolt to rotate, the lower extrusion plate and the upper extrusion plate can only move axially relative to each other due to the action of the guide pin and cannot be rotated and dislocated.

[0010] Furthermore, the air inspection blocking device cannot rotate relative to the inner hole of the workpiece due to the blocking and pulling effect of the baffle and the baffle pin on the workpiece.

[0011] The beneficial effect of the utility model is that when the pull rod drives the extrusion bolt to rotate, the lower extrusion plate and the upper extrusion plate approach each other and squeeze the sealing ring, so that the sealing ring is compressed in the vertical direction and expanded in the circumferential direction, thereby completely sealing the inner hole of the workpiece and the sealing device;

[0012] The utility model enables the ABS sensor mounting hole of the rear axle housing which cannot be blocked by the equipment to meet the blocking requirement through simple operation, thereby avoiding backflow of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the present utility model. DETAILED DESCRIPTION

[0014] Reference Figure 1 , a gas detection sealing device for the mounting hole of the ABS sensor of the rear axle housing, comprising a lower extrusion plate 1, a sealing ring 2, an upper extrusion plate 3, an extrusion bolt 4, a lever 5, a baffle 6, a baffle pin 7, and a guide pin 8;

[0015] When the lever 5 drives the extrusion bolt 4 to rotate, the lower extrusion plate 1 and the upper extrusion plate 3 approach each other and squeeze the sealing ring 2, causing the sealing ring 2 to be compressed in the vertical direction and expanded in the circumferential direction, thereby completely sealing the inner hole of the workpiece and the sealing device.

[0016] When the pull rod 5 drives the extrusion bolt 4 to rotate, the lower extrusion plate 1 and the upper extrusion plate 3 can only move axially relative to each other due to the action of the guide pin 8 and cannot be rotated and dislocated.

[0017] Due to the blocking and pulling effect of the baffle 6 and the baffle pin 7 on the workpiece, the workpiece cannot rotate relative to the inner hole of the workpiece, thereby preventing the sealing device from rotating and slipping when the extrusion bolt 4 is tightened.

[0018] The present invention can be specifically implemented according to the techniques in the technical solution, and the implementation methods are further illustrated by the following non-limiting examples.

[0019] Example 1: Taking the rear axle housing of the King Long United Longyao 8S Sea Lion electric drive axle as an example, the length of the axle housing is 1356MM.

[0020] In this embodiment, the diameter of the ABS sensor mounting hole to be blocked is Ø25 (+0.10-+0) MM, and the height of the ABS sensor mounting plane is 60 MM.

[0021] The air detection sealing device of the ABS sensor mounting hole rotates the extrusion bolt 4 through the lever 5, thereby forcing the lower extrusion plate 1 and the upper extrusion plate 3 to move axially closer together under the action of the guide pin 8, and then squeeze the sealing ring 2, causing the sealing ring 2 to compress in the vertical direction and expand in the circumferential direction, thereby completely sealing the inner hole of the workpiece and the sealing device.

[0022] The dimensions of the air test plugging device of the ABS sensor mounting hole of the embodiment are as follows:

[0023] The lower extrusion plate 1 is cylindrical, with an outer diameter of 24.5±0.1 and a total height of 37MM; the upper end is designed with a counterbore with a diameter of 15.2(+0.15+0.1)MM and a depth of 17MM, and the lower end is an internal thread M8 with a depth of 14MM, which does not penetrate the bottom of the lower extrusion plate 1; a through hole with a diameter of 4MM is drilled through the middle inner hole with a diameter of 8MM at a distance of 28MM from the bottom to install the guide pin 8.

[0024] The upper extrusion plate 3 is a stepped cylinder with a total height of 28MM and a middle inner hole with a diameter of 8MM passing through the whole length. The outer diameters of the three sections from top to bottom are 42MM, 24.5±0.1MM, and 15.2(+0.1-0.05)MM, respectively, with lengths of 5MM, 5MM, and 18MM, respectively; a slot with a width of 5MM and a depth of 10MM is formed in the side wall of the 15.2 outer diameter section to limit the movement of the guide pin 8 of the lower extrusion plate 1. Two M6 threaded holes are formed on the end face of the 42MM outer diameter section to connect and fix the baffle plate 6.

[0025] The extrusion bolt 4 is a threaded rod with a hole, with an upper end diameter of 16MM and a length of 26MM, and a through hole with a diameter of 7MM drilled 7MM away from the end face to install the lever 5, and the lower end is threaded with M8 throughout.

[0026] The utility model makes the ABS sensor mounting hole of the rear axle housing which cannot be plugged by the equipment can be plugged through simple operation, thereby avoiding the backflow of production processes.

[0027] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the utility model embodiments.

Claims

1. A gas detection sealing device for the ABS sensor mounting hole of a rear axle housing, comprising a lower extrusion plate, a sealing ring, an upper extrusion plate, an extrusion bolt, a lever, a baffle, a baffle pin, and a guide pin; It is characterized by: When the pull rod drives the extrusion bolt to rotate, the lower extrusion plate and the upper extrusion plate approach each other and squeeze the sealing ring, causing the sealing ring to be compressed in the vertical direction and expanded in the circumferential direction, thereby completely sealing the inner hole of the workpiece and the sealing device.

2. The air detection and blocking device for the rear axle housing ABS sensor mounting hole according to claim 1, characterized in that: When the pull rod drives the extrusion bolt to rotate, the lower extrusion plate and the upper extrusion plate can only move axially relative to each other due to the action of the guide pin and cannot be rotated and misaligned.

3. The air detection and blocking device for the rear axle housing ABS sensor mounting hole according to claim 1, characterized in that: The air inspection blocking device cannot rotate relative to the inner hole of the workpiece due to the blocking and pulling effect of the baffle and the baffle pin on the workpiece.

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