Auxiliary tool convenient for judging leakage position of partition plate assembly

Abstract

The utility model relates to the field of machining, in particular to an auxiliary tool facilitating judgment of the leakage position of a partition plate assembly. The technical problem that the air tightness of a partition plate rolling bearing part is difficult to check due to the fact that the distance between a test bed fixing panel connected with a power device and a partition plate assembly of the product is too close when the power device of a certain type of product is subjected to a waterway air tightness test is solved. An auxiliary tool convenient for judging the leakage position of a partition plate assembly is of a Y-shaped structure, one ends of three branch sections forming the Y-shaped structure are connected together, through holes are formed in the other ends of the three branch sections, and the centers of the three through holes are located on a circle with the center of the Y-shaped structure as the circle center. And each through hole is provided with a screw and a nut. The utility model designs an assistive device which can quickly and effectively solve the problem that the leakage position of an O-shaped ring at the rolling bearing part of a partition plate assembly in an air-water path airtight test of a certain type of power device is difficult to judge.

Description

Technical Field

[0001] The utility model relates to the field of mechanical processing, in particular to an auxiliary tool for facilitating the judgment of the leakage position of a partition assembly. Background Art

[0002] The power unit of a certain type of product is composed of a partition, an engine, a fuel pump and other components that are organically combined together to generate thrust to ensure the normal operation of the product underwater.

[0003] According to the technical specifications and actual use requirements of this product's power unit, after all components and directly affiliated parts and components (excluding the engine) are installed on the bulkhead assembly, an air-water line airtightness test is conducted on this power unit's airtightness test bench according to the technical specifications, at a pressure of 0.039MPa to 0.098MPa, maintained for 7 minutes. Only after passing the test can subsequent power testing and factory assembly be carried out. Therefore, the air-water line airtightness test, as a key process, is of great significance to improving product quality.

[0004] The airtightness test bench used in the air-water channel airtightness test of the power unit has the following structure: Figure 1 、 2 As shown in the figure, it mainly consists of a frame, bottom plate, top plate, side plates, vertical support plates, screws, nuts, etc. During use, align the assembled power unit's partition assembly with the screws on the vertical support plates and tighten the nuts. The power unit can then be placed firmly on the test bench. Low-pressure nitrogen is then used to connect the test pipe connection tools to the power unit for air and water line airtightness testing.

[0005] Recently, operators discovered that the pressure gauge dropped when the water line airtightness test was carried out for about 1 minute. The operators then used soapy water to check the inlet and outlet of each component of the power unit and the connection points of each pipeline to determine the location of the leak. However, when checking the partition assembly of the power unit, the distance between the partition rolling bearing part and the test bench support plate was about 20mm, and the distance from the upper, left and right end surfaces of the support plate was relatively far (about 150mm). If the O-ring at this location is leaking (such as Figure 3 As shown in the figure), it is difficult to insert the brush and directly apply soapy water for inspection. At the same time, if a leak occurs in this area, it is difficult to accurately determine the leak location at one time, which is time-consuming and labor-intensive. Utility Model Content

[0006] The utility model aims to solve the technical problem that when a certain type of product power device is currently undergoing a water channel air tightness test, it is difficult to check the air tightness of the partition rolling bearing part because the fixed panel of the test bench connected to it is too close to the partition assembly of the product. The utility model provides an auxiliary tool for facilitating the judgment of the leakage position of the partition assembly.

[0007] The utility model is implemented by adopting the following technical solution: an auxiliary tool for facilitating the judgment of the leakage position of the partition assembly, the auxiliary tool being in a "Y"-shaped structure, the three branch segments constituting the "Y"-shaped structure being connected together through one end, and the other end being provided with through holes, and the centers of the three through holes being located on a circle with the center of the "Y"-shaped structure as the center; each through hole is equipped with a screw and a nut.

[0008] Furthermore, in the "Y"-shaped structure, the angle between two adjacent branch segments is 130 degrees, and the angle between another two adjacent branch segments is 120 degrees.

[0009] Furthermore, each branch segment is a plate-like structure, and its width is 25 mm.

[0010] Furthermore, the through hole diameter is 10.5 mm, the screw specification is M10, and each screw is equipped with at least four nuts.

[0011] Furthermore, the centers of the three through holes are located on a circle with a diameter of 236.5 mm and a center of the "Y"-shaped structure.

[0012] Furthermore, in the "Y"-shaped structure, the transition connections of the three branch segments are rounded with a radius of 10 mm.

[0013] Furthermore, the outer sides of the other ends of the three branch segments are all rounded.

[0014] The utility model mainly aims at the problems existing in the prior art, and designs a mounting aid for the test bench support panel, such as Figure 4 As shown, it is used with 12 M10 nuts to solve the problem of difficulty in determining the location of O-ring leaks in the rolling bearing area of the bulkhead during waterway airtightness testing. Due to the "petal" design of this auxiliary tool, only the part that can be assembled with the power unit is retained. This avoids the obstruction of the test bench's vertical support plate in determining the location of leaks in the bulkhead rolling bearing area during air and waterway airtightness testing.

[0015] Compared with the existing technology, it has the following beneficial effects:

[0016] Practice has proven that this technical solution has the following advantages over existing technical solutions when processing workpieces:

[0017] 1. After installing the pair of fixtures on the air-water line airtightness test bench for this type of power unit, their practicality was tested using on-site products. The test revealed that the brush, coated with soapy water, could fully penetrate the bulkhead rolling bearing area, resolving the issue of incomplete brush penetration due to the support panel's position, and difficulty in determining the location of O-ring leaks in the bulkhead rolling bearing area.

[0018] 2. In the previous test, because the assembled power unit was large and heavy, it took about 15 to 20 minutes to repeatedly move the power unit on the screws to determine the location of the leak in the partition rolling bearing by applying soapy water. After using this pair of mounting tools, it only took about 2 to 3 minutes, greatly improving the test efficiency.

[0019] 3. It avoids the hidden dangers of subsequent power tests caused by inadequate judgment of the leakage location, achieves the purpose of saving time, convenience and effectiveness, and ensures quality.

[0020] The utility model is to design an auxiliary tool which can quickly and effectively solve the problem of difficult leakage position judgment of the O-ring at the rolling bearing part of the air-water channel airtightness test partition assembly of a certain type of power device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the airtight test bench structure.

[0022] Figure 2 for Figure 1 side view.

[0023] Figure 3 Schematic diagram of locations prone to leakage in the power unit.

[0024] Figure 4 Schematic diagram of assistive device structure.

[0025] 1- auxiliary tool, 2- through hole, 3- screw, 4- nut, 5- partition assembly, 6- test bench fixing panel, 7- prone to leakage position, 8- power unit. DETAILED DESCRIPTION

[0026] Example 1 Figure 4 As shown, a tool for locating leaks in a baffle assembly is shown. The tool 1 has a Y-shaped structure, with three branch segments connected at one end. Each end has a through-hole 2, with the center of each through-hole 2 located on a circle centered on the center of the Y-shaped structure. Each through-hole 2 is equipped with a screw 3 and a nut 4. In the Y-shaped structure, the angle between two adjacent branch segments is 130 degrees, while the angle between another two adjacent branch segments is 120 degrees.

[0027] Example 2: Each branch segment is a plate-like structure with a width of 25 mm. The through hole 2 has a diameter of 10.5 mm, and the screw 3 is M10. Each screw 3 is equipped with at least four nuts 4. The centers of the three through holes 2 are located on a circle with a diameter of 236.5 mm, centered at the center of the "Y"-shaped structure.

[0028] Example 3 In the Y-shaped structure, the transition joints of the three branch segments are all rounded with a radius of 10 mm. The outer sides of the other ends of the three branch segments are also rounded.

[0029] The specific usage of this utility model is as follows:

[0030] (1) Install one M10 screw in each of the three φ10.5 through holes of the auxiliary tool;

[0031] (2) Install two M10 nuts on the front and rear ends of the three φ10.5 through holes of the auxiliary tool and tighten the screws; after completion, visually check that the end surface of the auxiliary tool should be level with the table surface;

[0032] (3) Install one M10 nut on each screw and visually check that the nuts are at the same height;

[0033] (4) Install the partition assembly of the power unit on the auxiliary tool;

[0034] (5) Install a nut M10 on the mounting screw to secure the partition assembly.

[0035] Technical features of this utility model:

[0036] 1. The structure and size of this auxiliary tool are based on the partition assembly of a certain type of product power unit. Its shape is designed into a "petal" shape, and only the part that can be assembled with the power unit is retained. This solves the problems of being blocked by the support panel position, incomplete penetration of the brush, and difficulty in determining the leakage position of the O-ring in the rolling bearing part of the partition. Figure 3 The test bench fixing panel 6 in the utility model is replaced with the auxiliary tool described in this utility model. As can be seen, the auxiliary tool is petal-shaped, so the brush can be directly inserted into the leak-prone location 7 of the partition assembly. The auxiliary tool can be welded to the test bench (for example, by welding the ends of the branch segments or by centrally welding a bracket connected to the test bench). It can also be used as a positioning device for the partition assembly and assembled separately from the partition assembly.

[0037] 2. This auxiliary tool cooperates with screws and nuts to facilitate the position of the power device on the screw, and also solves the problem of time and labor consumption, achieving the purpose of time saving, convenience and effectiveness, and ensuring quality.

Claims

1. An auxiliary tool for facilitating the determination of the leakage location of a partition assembly, characterized in that: The auxiliary tool (1) is in a "Y"-shaped structure, wherein three branch segments forming the "Y"-shaped structure are connected together through one end, and each of the three through holes (2) is provided on the other end, and the centers of the three through holes (2) are located on a circle with the center of the "Y"-shaped structure as the center; each through hole (2) is equipped with a screw (3) and a nut (4).

2. The auxiliary tool for facilitating the determination of the leakage position of a partition assembly according to claim 1, characterized in that: In the "Y"-shaped structure, the angle between two adjacent branch segments is 130 degrees, and the angle between another two adjacent branch segments is 120 degrees.

3. The auxiliary tool for facilitating the determination of the leakage position of a partition assembly according to claim 2, characterized in that: Each branch segment is a plate-like structure, and its width is 25 mm.

4. The auxiliary tool for facilitating the determination of the leakage position of a partition assembly according to claim 3, characterized in that: The through hole (2) has a diameter of 10.5 mm, the screw (3) has a specification of M10, and each screw (3) is equipped with at least four nuts (4).

5. The auxiliary tool for facilitating the determination of the leakage position of a partition assembly according to claim 4, characterized in that: The centers of the three through holes (2) are located on a circle with a diameter of 236.5 mm and a center of the "Y"-shaped structure.

6. The auxiliary tool for facilitating the determination of the leakage position of a partition assembly according to claim 5, characterized in that: In the "Y"-shaped structure, the transition connections of the three branch segments are rounded with a radius of 10mm.

7. An auxiliary tool for facilitating the determination of the leakage position of a partition assembly according to any one of claims 1 to 6, characterized in that: The outer sides of the other ends of the three branch segments are all rounded.

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