Sealing performance test structure for short assembly of steering engine

Abstract

The utility model relates to the technical field of steering engines, in particular to a sealing performance test structure for a steering engine short assembly, which comprises the steering engine short assembly, a left tool and a right tool, the left tool is mounted at the left end of the steering engine short assembly, and the right tool is mounted at the right end of the steering engine short assembly. The left tool comprises a left tool body, a first sealing ring and a first threaded column, and the right tool comprises a right tool body, a second sealing ring and a second threaded column. Compared with the prior art, through the combined structure of the short assembly, the left tool and the right tool, the sealing performance of the short assembly of the steering engine without the dustproof sealing cover can be verified, and the test convenience in the research and development process of the steering engine is improved.

Description

Technical Field

[0001] This utility model relates to the field of steering gear technology, specifically to a sealing performance testing structure for a short steering gear assembly. Background Technology

[0002] In automotive steering systems, the steering gear plays a crucial role. From design to mass production and vehicle installation, various tests are required to verify the reliability of the steering gear, such as fatigue tests, environmental tests, functional tests, and sealing tests.

[0003] See Figure 1 , Figure 2 The method for verifying the sealing performance of the steering gear assembly is to pressurize or depressurize the PCE port 1 at the ECU location of the steering gear motor.

[0004] During product development, steering gears are not always presented as complete assemblies. Sometimes, the steering gear assembly is modified by removing the dust seals 2 at both ends to form a short steering gear assembly 3, such as... Figure 3 As shown. However, since there are no seals at both ends of the steering gear short assembly 3, the aforementioned method cannot be used to verify the sealing performance of the steering gear short assembly.

[0005] Therefore, it is necessary to design a sealing performance test structure for the short assembly of the steering gear, which can verify the sealing performance of the short assembly of the steering gear even without the dust cover seals at both ends. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a sealing performance test structure for the short assembly of the steering gear, which can verify the sealing performance of the short assembly of the steering gear even without the dust covers at both ends.

[0007] To achieve the above objectives, this utility model provides a sealing performance testing structure for a short steering gear assembly, comprising a short steering gear assembly, a left fixture, and a right fixture. The left fixture is mounted on the left end of the short steering gear assembly, and the right fixture is mounted on the right end. The left fixture includes a left fixture body, a first sealing ring, and a first threaded post. The first threaded post is mounted in the center of the left fixture body, and the first sealing ring is located on the inner edge of the left fixture body. The left fixture body is fitted onto the left end of the housing of the short steering gear assembly, with the first sealing ring contacting the end face of the left end of the housing. The first threaded post is connected to the threaded hole at the left end of the rack. The right fixture includes a right fixture body, a second sealing ring, and a second threaded post. The second threaded post is mounted in the center of the right fixture body, and the second sealing ring is located on the inner edge of the right fixture body. An air inlet is located on the end face of the right fixture body. The right fixture body is fitted onto the right end of the housing of the short steering gear assembly, with the second sealing ring contacting the end face of the right end of the housing. The second threaded post is connected to the threaded hole at the right end of the rack.

[0008] The aforementioned short steering gear assembly is the structure of the steering gear assembly after removing the dustproof seals at both ends.

[0009] The left and right tooling bodies are cap-shaped structures.

[0010] The air inlet is connected to the air inlet pipe.

[0011] Compared with the prior art, this utility model, through the combination structure of the short assembly with the left and right tooling, enables the short assembly of the steering gear without the dustproof sealing cover to be verified for sealing performance, thereby improving the convenience of testing during the development of the steering gear. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the steering gear assembly.

[0013] Figure 2 This is a schematic diagram of the PCE port of the steering gear motor ECU.

[0014] Figure 3 This is a structural schematic diagram of the short assembly of the steering gear.

[0015] Figure 4 This is a schematic diagram of the structure of this utility model.

[0016] Figure 5 This is a schematic diagram of the structure of the left tooling of this utility model.

[0017] Figure 6 This is a schematic diagram of the right tooling of this utility model.

[0018] Figure 7 This is a cross-sectional view of the assembly of the left tooling and the short steering gear assembly of this utility model. Detailed Implementation

[0019] The present invention will now be further described with reference to the accompanying drawings.

[0020] See Figure 4 This utility model is a sealing performance testing structure for a steering gear short assembly, including a steering gear short assembly, a left tooling, and a right tooling. The left tooling 4 is installed on the left end of the steering gear short assembly 3, and the right tooling 5 is installed on the right end of the steering gear short assembly 3.

[0021] See Figure 5 , Figure 7The left tooling 4 includes a left tooling body 41, a sealing ring 42, and a threaded post 43. The threaded post 43 is installed in the center of the left tooling body 41, and the sealing ring 42 is provided on the inner edge of the left tooling body 41. The left tooling body 41 is fitted onto the left end 31 of the housing of the steering gear short assembly 3. The sealing ring 42 is in contact with the end face of the left end 31 of the housing, and the threaded post 43 is connected to the threaded hole at the left end of the rack 33.

[0022] See Figure 6 The right tooling 5 includes a right tooling body 51, a second sealing ring 52, and a second threaded post 53. The second threaded post 53 is installed in the center of the inside of the right tooling body 51. The second sealing ring 52 is provided on the inner edge of the right tooling body 51. An air inlet 54 is provided on the end face of the right tooling body 51. The right tooling body 51 is fitted onto the right end 32 of the housing of the steering gear short assembly 3. The second sealing ring 52 is in contact with the end face of the right end 32 of the housing. The second threaded post 53 is connected to the right end threaded hole of the rack 33.

[0023] The short steering assembly 3 is the structure of the steering assembly after removing the dustproof seal covers 2 at both ends. That is, both ends of the short steering assembly 3 are open structures that are connected to the outside and are not sealed.

[0024] For ease of installation, the left tooling body 41 and the right tooling body 51 are cover-shaped structures.

[0025] In operation, threaded post 43 and threaded post 53 respectively lock the left tooling body 41 and the right tooling body 51 to the rack 33 of the steering gear short assembly 3. The air inlet 54 is connected to the air inlet pipe, so that both ends of the steering gear short assembly 3 are sealed by the left tooling 4 and the right tooling 5 respectively. During testing, the steering gear short assembly 3 can be inflated or deflated through the air inlet pipe and air inlet 54 to complete the sealing test of the steering gear short assembly 3.

[0026] This utility model, through the combination structure of the short assembly with the left and right tooling, enables the short assembly of the steering gear without a dustproof sealing cover to be verified for sealing performance, thereby improving the convenience of testing during the development of the steering gear.

Claims

1. A seal performance test structure for a steering gear short assembly, comprising a steering gear short assembly, a left tooling, a right tooling, characterized in that: The left tool (4) is installed at the left end of the steering machine short assembly (3), and the right tool (5) is installed at the right end of the steering machine short assembly (3), The left tool (4) comprises a left tool body (41), a sealing ring I (42) and a threaded column I (43), the threaded column I (43) is installed at the center of the inside of the left tool body (41), the sealing ring I (42) is arranged at the edge of the inside of the left tool body (41), the left tool body (41) is sleeved at the left end (31) of the shell of the steering machine short assembly (3), the sealing ring I (42) is in contact with the end face of the left end (31) of the shell, and the threaded column I (43) is connected with the left end threaded hole of the rack (33), The right tool (5) comprises a right tool body (51), a sealing ring II (52) and a threaded column II (53), the threaded column II (53) is installed at the center of the inside of the right tool body (51), the sealing ring II (52) is arranged at the edge of the inside of the right tool body (51), an air inlet hole (54) is arranged on the end face of the right tool body (51), the right tool body (51) is sleeved at the right end (32) of the shell of the steering machine short assembly (3), the sealing ring II (52) is in contact with the end face of the right end (32) of the shell, and the threaded column II (53) is connected with the right end threaded hole of the rack (33).

2. A seal performance test structure for a steering gear short assembly according to claim 1, characterized in that: The steering machine short assembly (3) is the structure after the dustproof sealing cover (2) at both ends of the steering machine assembly is removed.

3. A seal performance test structure for a steering gear short assembly according to claim 1, characterized in that: The left tool body (41) and the right tool body (51) are cover-shaped structures.

4. The seal performance test structure for a steering gear short assembly of claim 1, wherein: The air inlet hole (54) is connected with the air inlet pipe.

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