A gear assembly with high cleanliness

Abstract

The utility model discloses a gear assembly with high cleanliness, including welding process exhaust hole, and the outlet of welding process exhaust hole is provided with a blocking piece after welding is finished. The utility model discloses a kind of gear assembly with high cleanliness, including welding process exhaust hole, and the outlet of welding process exhaust hole is provided with a blocking piece after welding is finished.

Description

Technical Field

[0001] This utility model relates to the field of gear processing technology, and in particular to a gear assembly with high cleanliness. Background Technology

[0002] Existing gear assemblies were found to contain a significant amount of small foreign matter (metal and hard particles) during the cleanliness inspection of finished products. Investigation revealed that due to the numerous processing steps involved in gear assembly manufacturing, these small foreign particles inevitably entered the vent hole 1' (welding process vent hole). Figure 1 As shown, when the gear assembly is installed and used, these small particles will leak out from the exhaust port 1', causing increased noise and thus reducing the reliability and lifespan of the gearbox. Summary of the Invention

[0003] To overcome the shortcomings of the existing technology, this utility model proposes a gear assembly with high cleanliness.

[0004] The technical solution adopted in this utility model is: A gear assembly with high cleanliness includes a welding process vent, the outlet of which is sealed after welding. This invention, by sealing the outlet of the vent after welding, prevents small foreign particles from leaking out of the vent after installation, even if such particles are present, without affecting the venting process during welding.

[0005] Furthermore, it also includes a pin hole for assembly, wherein the outlet of the welding process vent hole is connected to the pin hole, and the sealing component is installed inside the pin hole.

[0006] Furthermore, the central axis of the vent hole in the welding process is set perpendicular to the central axis of the pin hole.

[0007] Furthermore, the diameter of the vent hole in the welding process ranges from Φ0.5mm to Φ2.5mm.

[0008] Furthermore, the sealing component is a long pin, the upper part of which blocks the outlet of the welding process vent hole, and the lower part of which is used for the assembly of the gear assembly.

[0009] Alternatively, the sealing element is a short pin, which is installed above the original pin and blocks the outlet of the welding process vent hole. The original pin is used for the assembly of the gear assembly.

[0010] Furthermore, the gear assembly includes a gear, a housing, and a shaft, and the welding process vent and pin hole are located on the housing.

[0011] Furthermore, the gear is welded to the housing.

[0012] Furthermore, the housing and the shaft are connected by a pin.

[0013] The beneficial effects of this utility model are: by blocking the vent hole of the welding process after welding with the sealing component, small foreign particles cannot be leaked out of the vent hole of the welding process, thereby completely avoiding the increase in noise caused by the leakage of small particles after the gear assembly is installed, and thus ensuring the reliability and life of the gearbox. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of an existing gear assembly.

[0015] Figure 2 This is a structural schematic diagram of the first embodiment of the present utility model.

[0016] Figure 3 This is a schematic diagram of the structure of the second embodiment of the present invention.

[0017] In the diagram: 1. Welding process vent; 2. Pin hole; 3. Long pin; 4. Housing; 5. Gear; 6. Shaft; 7. Original pin; 8. Short pin. Detailed Implementation

[0018] The present invention will be further described below with reference to specific embodiments, but the present invention is not limited to these specific embodiments. Those skilled in the art should recognize that the present invention covers all alternatives, improvements and equivalents that may be included within the scope of the claims.

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," and "counterclockwise," 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" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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.

[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] Example 1

[0023] Reference Figure 2 This embodiment provides a gear assembly with high cleanliness. The gear assembly includes a gear 4, a housing 5, and a shaft 6. The gear 4 and the housing 5 are welded together, and the housing 5 and the shaft 6 are connected by a long pin 3.

[0024] In this embodiment, the housing 5 is provided with a welding process vent 1, and a sealing element is provided at the outlet of the welding process vent 1 after welding is completed. By providing a sealing element at the outlet of the welding process vent 1 after welding, this utility model ensures that even if there are small foreign particles in the welding process vent 1, they will not leak out from the welding process vent 1 after installation, and it does not affect the venting during welding.

[0025] In this embodiment, the housing 5 is further provided with a pin hole 2 for assembly. The outlet of the welding process vent hole 1 is connected to the pin hole 2, and the sealing component is installed in the pin hole 2. The sealing component is a long pin 3. The upper part of the long pin 3 blocks the outlet of the welding process vent hole 1, and the lower part of the long pin 3 is used for the assembly of the gear assembly.

[0026] In this embodiment, the pin hole 2 is a straight-line structure, and the central axis of the welding process vent hole 1 is set perpendicular to the central axis of the pin hole 2.

[0027] The diameter range of the vent hole 1 in the welding process described in this embodiment is Φ0.5mm ~ Φ2.5mm.

[0028] In this invention, during assembly after welding, the long pin 3 is pressed into the pin hole 2 to seal the vent hole 1 of the welding process.

[0029] This invention uses a sealing component to block the welding process vent 1 after welding, preventing small foreign particles from leaking out of the welding process vent 1. This completely avoids the noise increase caused by small particles leaking out after the gear assembly is installed, thereby ensuring the reliability and lifespan of the gearbox.

[0030] Example 2

[0031] See Figure 3 The difference between this embodiment and embodiment one is that the sealing component in this embodiment is a short pin 8, which is installed above the original pin 7. The short pin 8 blocks the outlet of the welding process vent hole 1, and the original pin 7 is used for the assembly of the gear assembly.

[0032] In this invention, during assembly after welding, the short pin 8 is pressed into the pin hole 2 to seal the vent hole 1 of the welding process.

[0033] The remaining structures and functions can be referred to in Embodiment 1.

Claims

1. A gear assembly with high cleanliness, including welding process venting holes, characterized in that: The outlet of the welding process vent is provided with a plug after welding is completed; it also includes a pin hole for assembly, the outlet of the welding process vent is connected to the pin hole, and the plug is installed in the pin hole.

2. The gear assembly with high cleanliness according to claim 1, characterized in that: The central axis of the vent hole in the welding process is perpendicular to the central axis of the pin hole.

3. A gear assembly with high cleanliness according to claim 1, characterized in that: The diameter range of the vent holes in the welding process is Φ0.5mm ~ Φ2.5mm.

4. A gear assembly with high cleanliness according to claim 1, characterized in that: The sealing component is a long pin, the upper part of which blocks the outlet of the welding process vent hole, and the lower part of which is used for the assembly of the gear assembly.

5. A gear assembly with high cleanliness according to claim 1, characterized in that: The sealing component is a short pin, which is installed above the original pin. The short pin blocks the outlet of the welding process vent hole, and the original pin is used for the assembly of the gear assembly.

6. A gear assembly with high cleanliness according to claim 1, characterized in that: The gear assembly includes a gear, a housing, and a shaft, with the welding process vent and pin hole located on the housing.

7. A gear assembly with high cleanliness according to claim 6, characterized in that: The gear is welded to the housing.

8. A gear assembly with high cleanliness according to claim 6, characterized in that: The housing and the shaft are connected by a pin.

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