A kind of axle assembly airtightness rapid detection device

Abstract

The utility model relates to a kind of vehicle axle assembly airtightness rapid detection device, including air compressor, the output end of air compressor is fixedly connected with outlet pipe, the section of outlet pipe away from air compressor is fixedly connected with three-way pipe, the two ends of three-way pipe away from outlet pipe are respectively equipped with collar and gas cover, the inner wall of collar is fixedly connected with sealed air bag, the outer wall of gas cover is fixedly connected with the sealing ring with electromagnet in inside, the side of gas cover away from sealing ring is fixedly connected with the detection tube that is communicated with gas cover, and observation rod is inserted in the inside of detection tube;The utility model has the following advantages: the sealed air bag of collar inner wall can be self-adapting different outer diameter vehicle axle after inflation, replace traditional mechanical clamp, avoid vehicle axle scratch;Rubber sealing ring of gas cover outer wall cooperates with electromagnet adsorption positioning, utilize rubber elasticity to compensate vehicle axle end face machining error, and simultaneously realize automatic clamping by electromagnet quick adsorption, and detection efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically to a rapid testing device for the airtightness of a vehicle axle assembly. Background Technology

[0002] In the automotive manufacturing industry, the axle assembly, as a key load-bearing and transmission component, directly affects the reliability and service life of the entire vehicle due to the sealing performance of its bearings and lubricating oil. In current technologies, the airtightness testing of axle assemblies relies on mechanical clamps or static seals for sealing, which has low clamping efficiency, is prone to scratching the axle, and has poor compatibility between the seals and the axle, making it difficult to cover the testing needs of axle of various specifications. Therefore, there is a need for an axle assembly airtightness testing device that can achieve rapid clamping, multi-specification compatibility, and visual testing. Utility Model Content

[0003] This invention aims to solve the above-mentioned technical problems by providing a rapid testing device for the airtightness of a vehicle axle assembly.

[0004] The technical solution adopted by this utility model to solve the technical problem is: a rapid air tightness testing device for axle assembly, including an air compressor, an air outlet pipe fixedly connected to the output end of the air compressor, a three-way pipe fixedly connected to the section of the air outlet pipe away from the air compressor, a collar and an air cover respectively provided at the two ends of the three-way pipe away from the air outlet pipe, a sealing airbag fixedly connected to the inner wall of the collar, a sealing ring with an electromagnet inside fixedly connected to the outer wall of the air cover, a detection tube communicating with the air cover fixedly connected to the side of the air cover away from the sealing ring, and an observation rod inserted into the inside of the detection tube.

[0005] As a preferred technical solution of this utility model, a No. 1 air pipe is provided between the collar and the three-way pipe, and the sealing airbag is connected to the air outlet pipe through the No. 1 air pipe and the three-way pipe.

[0006] As a preferred technical solution of this utility model, a second air pipe is provided between the air hood and the three-way pipe, and the air hood is connected to the air outlet pipe through the second air pipe and the three-way pipe.

[0007] As a preferred embodiment of this utility model, the sealing ring is made of rubber, and the electromagnet inside the sealing ring is externally connected to a power supply and a controller.

[0008] As a preferred embodiment of this utility model, a support ring is fixedly connected to the inner section of the detection tube close to the air hood. A corrugated pipe is fixedly connected between the support ring and the connecting piece. A spring is sleeved on one end of the observation rod inside the detection tube. The two ends of the spring are fixedly connected to the connecting piece and the inner wall of the detection tube, respectively.

[0009] This utility model has the following advantages: the sealing airbag on the inner wall of the collar can adapt to different outer diameter axles after inflation, replacing the traditional mechanical clamp and avoiding axle scratches.

[0010] The rubber sealing ring on the outer wall of the air hood is used in conjunction with the electromagnet for adsorption and positioning. The elasticity of the rubber is used to compensate for the machining error of the axle end face. At the same time, the electromagnet can quickly adsorb and achieve automated clamping, thus improving the inspection efficiency.

[0011] The sealing airbag provides circumferential sealing, while the rubber sealing ring provides end face sealing, forming a dual sealing system of "elasticity + rigidity". Compared with the traditional single sealing method, the detection accuracy is improved. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural schematic diagram of a preferred embodiment of the present invention;

[0013] Figure 2 This is a cross-sectional structural diagram of the air hood according to a preferred embodiment of the present invention;

[0014] Figure 3 This is an enlarged structural schematic diagram of point A in a preferred embodiment of this utility model.

[0015] Explanation of reference numerals in the attached diagram: 1. Air compressor; 2. Air outlet pipe; 3. T-connector; 4. No. 1 air pipe; 5. Collar; 6. Sealing airbag; 7. No. 2 air pipe; 8. Air cover; 9. Sealing ring; 10. Electromagnet; 11. Detection tube; 12. Support ring; 13. Bellows; 14. Connecting piece; 15. Observation rod; 16. Spring. Detailed Implementation

[0016] The technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Please refer to the following: Figure 1-3 This utility model discloses a rapid airtightness testing device for axle assemblies, comprising an air compressor 1, an air outlet pipe 2 fixedly connected to the output end of the air compressor 1, a three-way pipe 3 fixedly connected to the section of the air outlet pipe 2 away from the air compressor 1, and a collar 5 and an air cover 8 respectively connected to the two ends of the three-way pipe 3 away from the air outlet pipe 2; a sealing airbag 6 fixedly connected to the inner wall of the collar 5, and a first air pipe 4 connected between the collar 5 and the three-way pipe 3; the sealing airbag 6 is connected to the air outlet pipe 2 through the first air pipe 4 and the three-way pipe 3; a sealing ring 9 with an internal electromagnet 10 fixedly connected to the outer wall of the air cover 8, and a second air pipe 7 connected between the air cover 8 and the three-way pipe 3. The air hood 8 is connected to the air outlet pipe 2 via the second air pipe 7 and the three-way pipe 3; a detection tube 11 connected to the air hood 8 is fixedly connected to the side of the air hood 8 away from the sealing ring 9, and an observation rod 15 is inserted into the inside of the detection tube 11; the sealing ring 9 is made of rubber, and the electromagnet 10 inside the sealing ring 9 is connected to a power supply and a controller; a support ring 12 is fixedly connected to the inside of the detection tube 11 and the section close to the air hood 8, and a bellows 13 is fixedly connected between the support ring 12 and the connecting piece 14; a spring 16 is sleeved on one end of the observation rod 15 inside the detection tube 11, and the two ends of the spring 16 are fixedly connected to the connecting piece 14 and the inner wall of the detection tube 11, respectively.

[0020] Specifically, when using this utility model, the axle end is inserted into the collar 5, the air compressor 1 is started, and the compressed air is split through the air outlet pipe 2: one path goes through the first air pipe 4 to fill the sealing airbag 6, the airbag expands and tightly fits the outer wall of the axle to achieve circumferential sealing; the other path goes through the second air pipe 7 to enter the air cover 8. At the same time, the electromagnet 10 is energized, and under the control of the controller, an adsorption force is generated, causing the rubber sealing ring 9 on the outer wall of the air cover 8 to be adsorbed onto the side wall of the collar 5 to achieve end face sealing.

[0021] The air compressor 1 continuously supplies air, creating a stable air pressure environment between the collar 5 and the inside of the air cover 8. At this time, observe the observation rod 15 inside the detection tube 11: if the axle is well sealed and the internal air pressure is stable, the observation rod 15 remains stationary under the balance of the spring 16 and the air pressure; if there is a bearing / lubricating oil leak in the axle, the observation rod 15 will move, and the greater the leakage, the more obvious the displacement.

[0022] After the inspection is completed, turn off the air compressor 1, the electromagnet 10 loses its attraction force, the sealing airbag 6 deflates and contracts, and the collar 5 and air cover 8 automatically detach from the axle, so that the next axle can be inspected.

[0023] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

[0024] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A rapid testing device for the airtightness of an axle assembly, characterized in that, The device includes an air compressor (1), the output end of which is fixedly connected to an air outlet pipe (2), a three-way pipe (3) is fixedly connected to a section of the air outlet pipe (2) away from the air compressor (1), a collar (5) and an air cover (8) are respectively provided at the two ends of the three-way pipe (3) away from the air outlet pipe (2), a sealing air bag (6) is fixedly connected to the inner wall of the collar (5), a sealing ring (9) with an electromagnet (10) inside is fixedly connected to the outer wall of the air cover (8), a detection tube (11) communicating with the air cover (8) is fixedly connected to the side of the air cover (8) away from the sealing ring (9), and an observation rod (15) is inserted into the inside of the detection tube (11).

2. The rapid air tightness testing device for axle assembly as described in claim 1, characterized in that, A first air pipe (4) is provided between the collar (5) and the three-way pipe (3), and the sealing airbag (6) is connected to the air outlet pipe (2) through the first air pipe (4) and the three-way pipe (3).

3. The rapid airtightness testing device for axle assembly as described in claim 1, characterized in that, A second air pipe (7) is provided between the air hood (8) and the three-way pipe (3), and the air hood (8) is connected to the air outlet pipe (2) through the second air pipe (7) and the three-way pipe (3).

4. The rapid airtightness testing device for axle assembly as described in claim 1, characterized in that, The sealing ring (9) is made of rubber, and the electromagnet (10) inside the sealing ring (9) is connected to a power supply and controller.

5. The rapid airtightness testing device for axle assembly as described in claim 1, characterized in that, A support ring (12) is fixedly connected to the inner part of the detection tube (11) close to the air cover (8). A corrugated pipe (13) is fixedly connected between the support ring (12) and the connecting piece (14). A spring (16) is sleeved on one end of the observation rod (15) inside the detection tube (11). The two ends of the spring (16) are fixedly connected to the connecting piece (14) and the inner wall of the detection tube (11), respectively.

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