Leakage detection tool for reduction gearbox shell

Abstract

The utility model discloses a leakage detection tool for a reduction gearbox housing. The leakage detection tool comprises a housing. The rack comprises a base and a top plate erected on the base; the supporting assembly is arranged on the base, the supporting assembly comprises a base and a limiting piece arranged on the base, and the shell is placed on the base; the blocking assembly comprises a top blocking piece, a side face blocking piece and a bottom blocking piece, and the top blocking piece, the side face blocking piece and the bottom blocking piece are used for blocking the openings in the top, the side face and the bottom of the shell correspondingly; the leak hunting tool comprises a base, a shell and a pressurizing assembly, the pressurizing assembly comprises a pressure pump and an air pipe connected with the pressure pump, a pressure gauge is arranged on the air pipe, an air chamber communicated with the shell is arranged in the base, the air pipe is communicated with the air chamber, and the leak hunting tool has the advantages of being simple in structure and accurate in measurement.

Description

Technical Field

[0001] This utility model relates to gearboxes, specifically to a gearbox housing leak detection fixture. Background Technology

[0002] The gearbox housing is typically cast, and an airtightness test is required after casting to prevent oil leaks during subsequent use. Existing airtightness testing equipment suffers from complex structures and inaccurate testing; therefore, it is necessary to address the shortcomings of current technology. Utility Model Content

[0003] This application aims to address the problems raised in the background section above.

[0004] This utility model discloses a leak detection fixture for a gearbox housing, comprising:

[0005] case;

[0006] A frame, the frame including a base and a top plate mounted on the base;

[0007] A support assembly is disposed on the base, the support assembly includes a base and a limiting member disposed on the base, and the housing is placed on the base;

[0008] A sealing assembly, comprising a top sealing member, a side sealing member, and a bottom sealing member, wherein the top sealing member, the side sealing member, and the bottom sealing member are respectively used to seal the openings at the top, sides, and bottom of the housing;

[0009] The pressurization assembly includes a pressure pump and an air pipe connected to the pressure pump. A pressure gauge is installed on the air pipe. An air chamber communicating with the housing is provided in the base. The air pipe is connected to the air chamber. This utility model uses a support assembly, a sealing assembly, and a pressurization assembly to limit the housing, seal the openings on the housing using the sealing assembly, and inject gas of a certain pressure into the housing using the pressurization assembly. Thus, the change in the pressure gauge reading can determine whether there is a leak in the housing. This leak detection fixture has the advantages of simple structure and accurate measurement.

[0010] In one specific embodiment, the limiting member includes a positioning pin and a positioning post fixed to the base. The shape of the positioning post matches the inner cavity of the housing. Through the cooperation of the positioning pin and the positioning post, the housing can be limited. The structure is simple and has high stability.

[0011] In one specific embodiment, the top sealing component includes a first cylinder mounted on the top plate and a mounting plate disposed at the output end of the first cylinder. The mounting plate is provided with a plurality of fixed sealing components and a plurality of elastic sealing components.

[0012] In one specific embodiment, the fixing and sealing component includes a first shaft fixedly connected to the mounting plate. The end of the first shaft is provided with a first end cap. A first annular groove is formed on the end cap, and a first rubber ring is embedded in the groove. The structure is simple and the sealing effect is good.

[0013] In one specific embodiment, the elastic sealing member includes a second shaft and a second end cap slidably connected to the second shaft. A spring is provided between the second shaft and the second end cap, which can increase buffering and improve safety.

[0014] In one specific embodiment, the side sealing component includes a bracket fixed to the mounting plate and a second cylinder disposed on the bracket. The output end of the second cylinder is provided with a third end cap. The structure is simple and easy to implement.

[0015] In one specific embodiment, the bottom sealing component includes a third cylinder installed on the base and an abutment provided at the output end of the third cylinder. The abutment is provided with a rubber pad, and the airtight effect can be enhanced by providing a rubber pad on the abutment.

[0016] In one specific embodiment, the base is provided with a second annular groove, which matches the shape of the bottom surface of the shell, resulting in good airtightness and a simple structure.

[0017] Beneficial effects: This utility model uses a support component, a sealing component, and a pressurizing component. The support component limits the housing, the sealing component seals the openings on the housing, and the pressurizing component injects gas at a certain pressure into the housing. By observing the vertical change on the pressure gauge, it is possible to determine whether there is a leak in the housing. This leak detection tool has the advantages of simple structure and accurate measurement. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a gearbox housing leak detection tool according to this embodiment;

[0019] Figure 2 This is a structural diagram of the supporting components;

[0020] Figure 3 This is a structural diagram of the frame and top sealing component;

[0021] Figure 4 This is a structural schematic diagram of an elastic sealing component;

[0022] Figure 5 This is a structural schematic diagram of the fixed sealing component;

[0023] Figure 6 This is a structural schematic diagram of the side sealing component;

[0024] Figure 7 This is a structural schematic diagram of the bottom sealing component.

[0025] In the diagram: 100, Leak testing fixture; 200, Housing; 1, Base; 2, Top plate; 3, Top sealing component; 30, First cylinder; 31, Mounting plate; 32, Fixed sealing component; 320, First shaft; 321, First end cap; 33, Elastic sealing component; 330, Second shaft; 331, Spring; 332, Second end cap; 4, Side sealing component; 40, Second cylinder; 41, Bracket; 42, Third end cap; 5, Bottom sealing component; 50, Third cylinder; 51, Abutment joint; 52, Rubber pad; 6, Support assembly; 60, Base; 61, Positioning post; 62, Positioning pin; 63, Second annular groove. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] In the description of this utility model, it should be understood that the terms "center," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "counterclockwise," "clockwise," "axial," "radial," and "circumferential," 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. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0028] 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 according to the specific circumstances. Example

[0029] See Figures 1-7This embodiment of a gearbox housing leak testing fixture 100 includes a housing 200; a frame, the frame including a base 1 and a top plate 2 mounted on the base 1; a support assembly 6, the support assembly 6 being disposed on the base 1, the support assembly 6 including a base 60 and a limiting member disposed on the base 60, the housing 200 being placed on the base 60; a sealing assembly, the sealing assembly including a top sealing member 3, a side sealing member 4, and a bottom sealing member 5, the top sealing member 3, the side sealing member 4, and the bottom sealing member 5 being used to seal the openings at the top, sides, and bottom of the housing 200 respectively; and a pressurization assembly. The pressurizing assembly includes a pressure pump and an air pipe connected to the pressure pump. A pressure gauge is installed on the air pipe. An air chamber communicating with the housing 200 is provided in the base 60. The air pipe is connected to the air chamber. This utility model uses a support assembly 6, a sealing assembly, and a pressurizing assembly to limit the housing 200, seal the openings on the housing 200 using the sealing assembly, and inject gas of a certain pressure into the housing 200 using the pressurizing assembly. Thus, the change in the pressure gauge reading can determine whether there is a leak in the housing 200. This leak detection fixture has the advantages of simple structure and accurate measurement.

[0030] See Figure 2 The limiting component includes a positioning pin 62 and a positioning post 61 fixed to the base 60. The shape of the positioning post 61 matches the inner cavity of the housing 200. Through the cooperation of the positioning pin 62 and the positioning post 61, the housing 200 can be limited. The structure is simple and has high stability.

[0031] See Figure 3 The top sealing component 3 includes a first cylinder 30 installed on the top plate 2 and a mounting plate 31 provided at the output end of the first cylinder 30. The mounting plate 31 is provided with a plurality of fixed sealing components 32 and a plurality of elastic sealing components 33.

[0032] See Figure 5 The fixed sealing component 32 includes a first shaft 320 fixedly connected to the mounting plate 31. The end of the first shaft 320 is provided with a first end cap 321. The end cap is provided with a first annular groove, and a first rubber ring is embedded in the groove. The structure is simple and the sealing effect is good.

[0033] See Figure 4 The elastic sealing member 33 includes a second shaft 330 and a second end cap 332 slidably connected to the second shaft 330. A spring 331 is provided between the second shaft 330 and the second end cap 332. The spring 331 can increase the buffer and improve safety.

[0034] See Figure 6The side sealing component 4 includes a bracket 41 fixed to the mounting plate 31 and a second cylinder 40 disposed on the bracket 41. The output end of the second cylinder 40 is provided with a third end cap 42. The structure is simple and easy to implement.

[0035] See Figure 7 The bottom sealing component 5 includes a third cylinder 50 installed on the base 60 and an abutment 51 provided at the output end of the third cylinder 50. The abutment 51 is provided with a rubber pad 52. The airtight effect can be enhanced by providing a rubber pad 52 on the abutment 51.

[0036] See Figure 2 The base 60 is provided with a second annular groove 63, which matches the shape of the bottom surface of the housing 200, resulting in good airtightness and simple structure.

[0037] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A leakage detection tool for a reduction gearbox housing, characterized in that, include: case; A frame, the frame including a base and a top plate mounted on the base; A support assembly is disposed on the base, the support assembly includes a base and a limiting member disposed on the base, and the housing is placed on the base; A sealing assembly, comprising a top sealing member, a side sealing member, and a bottom sealing member, wherein the top sealing member, the side sealing member, and the bottom sealing member are respectively used to seal the openings at the top, sides, and bottom of the housing; A pressurization assembly, comprising a pressure pump and an air pipe connected to the pressure pump, wherein a pressure gauge is provided on the air pipe, and an air chamber communicating with the housing is provided in the base, and the air pipe is communicating with the air chamber.

2. The leak detection tool for a reduction gearbox housing of claim 1, wherein: The limiting component includes a positioning pin and a positioning post fixed to the base, the shape of which matches the inner cavity of the housing.

3. The leak detection tool for a reduction gearbox housing of claim 1, wherein: The top sealing component includes a first cylinder installed on the top plate and a mounting plate located at the output end of the first cylinder. The mounting plate is provided with multiple fixed sealing components and multiple elastic sealing components.

4. The leak detection tooling for a reduction gearbox housing of claim 3, wherein: The fixing and sealing component includes a first shaft fixedly connected to the mounting plate. The end of the first shaft is provided with a first end cap. A first annular groove is formed on the end cap, and a first rubber ring is embedded in the groove.

5. The leak detection tool for a reduction gearbox housing of claim 3, wherein: The elastic sealing member includes a second shaft and a second end cap that is slidably connected to the second shaft, and a spring is provided between the second shaft and the second end cap.

6. The leak detection tool for a reduction gearbox housing of claim 3, wherein: The side sealing component includes a bracket fixed to the mounting plate and a second cylinder disposed on the bracket, wherein the output end of the second cylinder is provided with a third end cap.

7. The leak detection tool for a reduction gearbox housing of claim 1, wherein: The bottom sealing component includes a third cylinder installed on the base and an abutment located at the output end of the third cylinder, the abutment being provided with a rubber pad.

8. The leak detection tool for a reduction gearbox housing of claim 1, wherein: The base is provided with a second annular groove, which matches the shape of the bottom surface of the housing.

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