Universal corrugated pipe performance test tool

Abstract

The utility model discloses a universal corrugated pipe performance test tool, and belongs to the technical field of part experiments. The support is fixed to the upper end of the bottom plate, the outer end of the support is fixedly connected with the vertically-arranged disc, the disc fixedly sleeves the outer side of the outer end of the fixing shaft, the fixing shaft is sleeved with the cover plate and the outer sleeve, the outer end of the outer sleeve is fixedly connected with the cover plate, the inner end of the outer sleeve is fixedly connected with the inner end of the support, and a through cavity is formed in the middle of the fixing shaft. And the inner end of the fixed shaft is fixedly communicated with a joint corresponding to the test piece. According to the utility model, effective testing of different types of corrugated pipes is realized, the versatility of the test tool is enhanced, and the economic cost of customizing tools for different corrugated pipes is reduced; the test process is simplified, the time cost for disassembling and assembling the test piece before the test is reduced, and cost reduction and efficiency improvement are realized; in addition, the utility model provides a reference basis for the design of other types of corrugated pipe test tools, and promotes the standardization and efficiency improvement of the test tool design.

Description

Technical Field

[0001] This utility model relates to a general-purpose corrugated pipe performance testing fixture, belonging to the field of parts testing technology. Background Technology

[0002] As a key component in an engine, the bellows plays a crucial role in guiding air and pumping oil. Its unique corrugated structure not only gives it flexibility during operation but also enables it to compensate for misalignment, which is essential for ensuring stable engine operation. Therefore, after production, bellows must undergo a series of rigorous performance tests to verify whether they meet design requirements and usage standards, thus ensuring their performance is up to standard.

[0003] Currently available testing fixtures are mainly designed for testing straight-tube corrugated pipes. However, they cannot effectively test other types of corrugated pipes, such as those with different lengths or diameters, or tee-type corrugated pipes. This poor applicability not only limits the breadth and accuracy of corrugated pipe performance testing but also causes inconvenience to corrugated pipe production and quality control. Utility Model Content

[0004] To address the problems existing in the background technology, this utility model provides a general-purpose corrugated pipe performance testing fixture.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a general-purpose corrugated pipe performance testing fixture, comprising a base plate and at least two end positioning components, each of the end positioning components comprising a disc, a cover plate, a fixed shaft, an outer sleeve, and a bracket; the bracket is fixedly mounted on the upper end of the base plate, the outer end of the bracket is fixedly connected to the vertically arranged disc, the disc is fixedly mounted on the outer side of the outer end of the fixed shaft, the outer side of the fixed shaft is fitted with a cover plate and an outer sleeve, the outer end of the outer sleeve is fixedly connected to the cover plate, the inner end of the outer sleeve is fixedly connected to the inner end of the bracket, the fixed shaft has a through cavity in the middle, and the inner end of the fixed shaft is fixedly connected to the joint corresponding to the test piece.

[0006] The outer wall of the outer sleeve is threadedly connected to a plurality of adjusting screws, and the inner end of each adjusting screw is abutted against the side wall of the fixed shaft.

[0007] The outer wall of the inner end of the fixed shaft is provided with an annular protrusion along its circumference.

[0008] The surfaces of the disc, cover plate, fixed shaft, outer sleeve, bracket, and base plate are all hardened or galvanized.

[0009] A flexible support structure is provided between the fixed shaft and the bracket.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This invention enables effective testing of different types of corrugated pipes through a base plate and at least two end positioning components, enhancing the versatility of the testing fixture and reducing the economic cost of custom-made fixtures for different corrugated pipes. It simplifies the testing process, reduces the time cost of disassembling and assembling test pieces before testing, and achieves cost reduction and efficiency improvement. In addition, this invention provides a reference basis for the design of testing fixtures for other types of corrugated pipes, promoting the standardization and efficiency improvement of testing fixture design. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the disk's structure;

[0014] Figure 3 yes Figure 2 AA section view;

[0015] Figure 4 This is a structural schematic diagram of the cover plate;

[0016] Figure 5 yes Figure 4 BB section view;

[0017] Figure 6 This is a structural diagram of an outer garment;

[0018] Figure 7 yes Figure 6 CC section view;

[0019] Figure 8 yes Figure 6 The main view;

[0020] Figure 9 This is a structural diagram of another type of coat;

[0021] Figure 10 yes Figure 9 DD sectional view;

[0022] Figure 11 yes Figure 9 The main view;

[0023] Figure 12 This is a schematic diagram of a fixed-axis structure.

[0024] Figure 13 This is a schematic diagram of another type of fixed-axis structure. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0026] A general-purpose corrugated pipe performance testing fixture includes a base plate 10 and at least two end positioning components. Each end positioning component includes a disc 1, a cover plate 4, a fixed shaft 6, an outer sleeve 7, and a bracket 8. The bracket 8 is fixed to the upper end of the base plate 10. The outer end of the bracket 8 is fixedly connected to the vertically arranged disc 1 by corresponding hexagon socket screws. The disc 1 is fixedly fitted onto the outer side of the outer end of the fixed shaft 6 by corresponding hexagon socket screws. The outer side of the fixed shaft 6 is fitted with a cover plate 4 and an outer sleeve 7. The outer end of the outer sleeve 7 is fixedly connected to the cover plate 4 by corresponding hexagon socket screws. The inner end of the outer sleeve 7 is fixedly connected to the inner end of the bracket 8 by corresponding hexagon socket screws. The fixed shaft 6 has a through cavity in the middle. The inner end of the fixed shaft 6 and the corresponding joint of the test piece are locked and fixedly connected by an external clamp.

[0027] The outer wall of the outer sleeve 7 is threadedly connected to a plurality of adjusting screws 5 evenly distributed along its circumference, and the inner end of each adjusting screw 5 is abutted against the side wall of the fixed shaft 6.

[0028] The outer wall of the inner end of the fixed shaft 6 is provided with an annular protrusion 2 along its circumference to increase the stability of the connection between the fixed shaft 6 and the connector.

[0029] The surfaces of the disc 1, cover plate 4, fixed shaft 6, outer sleeve 7, bracket 8, and base plate 10 are all hardened or galvanized to further improve corrosion resistance and wear resistance.

[0030] A flexible support structure, such as a multi-ring spring array, is provided between the fixed shaft 6 and the bracket 8 to absorb some stress concentration and prevent the bellows from being damaged due to uneven force.

[0031] The base plate 10 is a replaceable part to meet the installation requirements of different numbers of end positioning components, so as to adapt to the use requirements of different test pieces and meet the requirements of versatility.

[0032] After the test piece is installed on this utility model, a position compensation test is performed by adjusting the adjusting screw 5 to simulate the deformation and displacement that may occur with the whole structure during actual operation. The fixed shaft 6 can be connected to an external air source or filled with liquids of various states to simulate actual working conditions, thereby achieving a pressure test to measure its pressure resistance. The entire utility model, along with the product, can be placed in a permissible high or low temperature environment and connected to pipelines to simulate its working capability under high or low temperature conditions. Details are as follows:

[0033] Pressure test:

[0034] Operation: After installing the test piece onto this utility model, connect the fixed shaft 6 to the air / liquid source. After the pressure gauge is ready, turn on the air source to start the test. Adjust the air source pressure according to the experimental requirements.

[0035] Judgment: After reaching the specified pressure, the gas source is turned off and the system is left to stand. If the pressure drop does not fall below the specified value within the specified time, it is considered qualified.

[0036] Compensation offset:

[0037] Operation: After fixing the test piece onto this utility model, the position of the tube opening is shifted by adjusting the screw 5 to push the fixing shaft 6.

[0038] Judgment: If there is no damage to the appearance, it is considered qualified.

[0039] Pressure cycling test:

[0040] Operation: After installing the test piece onto this utility model, connect the fixed shaft 6 to the air source. After the pressure gauge is ready, turn on the air source to start the test. Adjust the air source pressure according to the experimental requirements, and then control the frequency and pressure of charging and discharging several times.

[0041] Judgment: If there is no damage to the appearance, it is considered qualified, or the pressure gauge shows the same pressure each time it is filled and vented during the test.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A general-purpose bellows performance testing fixture, characterized in that: The device includes a base plate (10) and at least two end positioning components. Each end positioning component includes a disc (1), a cover plate (4), a fixed shaft (6), an outer sleeve (7), and a bracket (8). The bracket (8) is fixed to the upper end of the base plate (10). The outer end of the bracket (8) is fixedly connected to the vertically arranged disc (1). The disc (1) is fixedly fitted on the outer side of the outer end of the fixed shaft (6). The outer side of the fixed shaft (6) is fitted with a cover plate (4) and an outer sleeve (7). The outer end of the outer sleeve (7) is fixedly connected to the cover plate (4). The inner end of the outer sleeve (7) is fixedly connected to the inner end of the bracket (8). The fixed shaft (6) has a through cavity in the middle. The inner end of the fixed shaft (6) is fixedly connected to the joint corresponding to the test piece.

2. The universal corrugated pipe performance testing fixture according to claim 1, characterized in that: The outer wall of the outer sleeve (7) is threadedly connected to a plurality of adjusting screws (5), and the inner end of each adjusting screw (5) is abutted against the side wall of the fixed shaft (6).

3. The universal corrugated pipe performance testing fixture according to claim 1, characterized in that: The outer side wall of the inner end of the fixed shaft (6) is provided with an annular protrusion (2) along its circumference.

4. The universal corrugated pipe performance testing fixture according to claim 1, characterized in that: The surfaces of the disc (1), cover plate (4), fixed shaft (6), outer sleeve (7), bracket (8) and base plate (10) are all hardened or galvanized.

5. A general-purpose corrugated pipe performance testing fixture according to claim 1 or 4, characterized in that: A flexible support structure is provided between the fixed shaft (6) and the bracket (8).

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