Sleeve type ventilation piece for speed reducer oil tank

Abstract

The utility model discloses a casing pipe type ventilation piece for a speed reducer oil tank, which comprises a pipe sleeve assembly, the pipe sleeve assembly comprises a diffusion sleeve, an exhaust pipe is coaxially welded at the top of the diffusion sleeve, and a flow guide pipe is coaxially welded at the bottom of the diffusion sleeve. A hollow bolt capable of installing the pipe sleeve assembly on the speed reducer oil tank is coaxially welded to the bottom of the flow guide pipe. The inner diameters of the pipe bodies of the exhaust pipe and the flow guide pipe and the aperture of the hollow bolt are equal and are not less than 6mm; the inner diameters of the pipe bodies of the exhaust pipe and the flow guide pipe and the aperture of the hollow bolt are smaller than the inner diameter of the sleeve body of the diffusion sleeve; and the top of the exhaust pipe is bent towards one side to form a dustproof elbow. The structure of a traditional vent cap is optimized, and the problems of blockage and oil leakage of the vent cap for the speed reducer oil tank are solved.

Description

Technical Field

[0001] The utility model relates to a ventilation component, in particular to a sleeve type ventilation piece for a reducer oil tank. Background Art

[0002] In order to reduce the internal pressure, the oil tank of the reducer or reducer unit is equipped with a breather cap. The breather cap is mainly made of plastic, which is small and exquisite and economical.

[0003] Problems with traditional vent caps:

[0004] 1. Oil leakage. This is a common problem. Basically, after the equipment has been running for a certain period of time, due to internal pressure or gear splashing inside the reducer oil tank, lubricating oil will leak out from the vent cap, causing pollution to the machine body and the site.

[0005] 2. Blockage. Since there is filter cotton inside the vent cap and the vent holes are generally very small, when the lubricating oil inside the reducer housing is relatively dirty, it is easy for the vent holes to be blocked, resulting in the inability to vent air inside, affecting the seal, causing the oil temperature to rise, and reducing the lubrication effect. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model proposes a sleeve-type breather for a reducer oil tank to solve the problems of oil leakage and blockage of a traditional breather cap.

[0007] The sleeve-type breather for the reducer oil tank which can solve the above technical problems includes a sleeve-tube assembly, the difference being that:

[0008] 1. The pipe sleeve assembly includes a diffusion sleeve, the top of which is coaxially welded with an exhaust pipe, the bottom of which is coaxially welded with a guide pipe, and the bottom of which is coaxially welded with a hollow bolt that can be used to install the pipe sleeve assembly on the reducer oil tank.

[0009] 2. The inner diameters of the exhaust pipe and the guide pipe and the hole diameters of the hollow bolts are equal and not less than (greater than or equal to) 6 mm.

[0010] 3. The inner diameters of the exhaust pipe and the guide pipe and the hole diameters of the hollow bolts are smaller than the inner diameter of the diffusion sleeve.

[0011] 4. The top of the exhaust pipe is bent to one side to form a dust-proof elbow.

[0012] Beneficial effects of the utility model:

[0013] 1. The sleeve-type vent for the oil tank of the reducer of the utility model optimizes the structure of the existing vent cap and solves the problem of blockage and oil leakage of the vent cap for the reducer housing.

[0014] 2. In the structure of the utility model, the splashed lubricating oil enters the diffusion sleeve through the guide pipe and is dispersed. The lubricating oil has no upward power and can settle in the diffusion sleeve, and then automatically flows back to the reducer oil tank through the guide pipe, thereby solving the oil leakage problem.

[0015] 3. In the structure of the utility model, the inner diameter of the guide tube is increased (≥6mm), and slight impurities in the splashed oil will also flow back into the reducer oil tank along with the lubricating oil, and will not block the guide tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an implementation method of the utility model.

[0017] Figure 2 for Figure 1 Dimensions of various parts in the implementation scheme.

[0018] Figure number identification: 1. Diffuser sleeve; 2. Exhaust pipe; 2-1. Dust-proof elbow; 3. Flow guide pipe; 4. Hollow bolt. DETAILED DESCRIPTION

[0019] The technical solution of the utility model is further described below in conjunction with the implementation modes shown in the accompanying drawings.

[0020] The utility model discloses a sleeve-type breather for a speed reducer oil tank, comprising a sleeve-tube assembly, wherein the sleeve-tube assembly comprises a diffusion sleeve 1, an exhaust pipe 2, a flow guide pipe 3 and a hollow bolt 4.

[0021] The vertical length of the diffusion sleeve 1 is 25 mm, and the inner diameter of the diffusion sleeve 1 is 15 mm. Figure 1 shown.

[0022] The top of the exhaust pipe 2 is a dustproof elbow 2-1 that is bent to one side into a semicircular shape. The vertical length of the exhaust pipe 2 is 24 mm (the length of the tube below the dustproof elbow 2-1). The inner diameter of the exhaust pipe 2 is 6 mm. The outer bending radius of the dustproof elbow 2-1 is 10 mm. Figure 1 shown.

[0023] The vertical length of the guide tube 3 is 25 mm, and the inner diameter of the guide tube 3 is 6 mm. Figure 1 shown.

[0024] The diffusion sleeve 1, the exhaust pipe 2 and the guide pipe 3 are all made of thin-walled stainless steel pipes of corresponding size specifications.

[0025] The hollow bolt 4 has a coaxial through hole with a diameter of 6 mm. The hexagonal screw head of the hollow bolt 4 has a thickness of 7 mm. The length of the screw of the hollow bolt 4 is 15 mm. The specification of the screw is M10. Figure 1 shown.

[0026] The bottom of the exhaust pipe 2 is coaxially welded to the top of the diffusion sleeve 1, the top of the guide pipe 3 is coaxially welded to the bottom of the diffusion sleeve 1, and the bottom of the guide pipe 3 is coaxially welded to the hexagonal screw head end of the hollow bolt 4. Figure 1 shown.

[0027] The pipe sleeve assembly is installed on the reducer oil tank through the screw rod of the hollow bolt 4 (with a sealing ring), and it can be used after tightening the hollow bolt 4 with a wrench. During the splashing process, the lubricating oil in the reducer oil tank enters the diffusion sleeve 1 through the guide pipe 3 and is buffered. After the power disappears, it settles and flows into the reducer oil tank. Slight impurities will also follow the lubricating oil and flow back to the reducer oil tank through the guide pipe 3.

Claims

1. A sleeve-type breather for a reducer oil tank, comprising a sleeve-tube assembly, characterized in that: The pipe sleeve assembly comprises a diffusion sleeve (1), an exhaust pipe (2) is coaxially welded to the top of the diffusion sleeve (1), a flow guide pipe (3) is coaxially welded to the bottom of the diffusion sleeve (1), and a hollow bolt (4) for mounting the pipe sleeve assembly on the oil tank of the reducer is coaxially welded to the bottom of the flow guide pipe (3); The inner diameters of the exhaust pipe (2) and the guide pipe (3) and the hole diameter of the hollow bolt (4) are equal and not less than 6 mm; The inner diameters of the exhaust pipe (2) and the guide pipe (3) and the hole diameter of the hollow bolt (4) are all smaller than the inner diameter of the diffusion sleeve (1); The top of the exhaust pipe (2) is bent toward one side to form a dustproof elbow (2-1).

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