Oil leakage prevention structure of ventilation cap

Abstract

The utility model discloses an oil leakage prevention structure of a ventilation cap. The oil leakage prevention structure comprises a three-way pipe, the ventilation cap, a silencing sheet and a connecting pipe, the three-way pipe is provided with a connecting port, a first mounting hole and a second mounting hole, and the first mounting hole and the second mounting hole are both communicated with the connecting port; the ventilation cap is connected with the first mounting hole; the silencing sheet is arranged in the first mounting hole and covers the air inlet of the ventilation cap; and one end of the connecting pipe is connected with the second mounting hole. The three-way pipe is adopted and matched with the silencing piece to be arranged in the first mounting hole and seal the air inlet of the ventilation cap, oil and gas are separated through the silencing piece, the oil flows back to the speed reducer box through the connecting pipe, the gas is exhausted through the ventilation cap, the oil leakage phenomenon is effectively avoided, and the noise reduction device is simple in structure, convenient to install and maintain and low in cost. The popularization and use are worthy.

Description

Technical Field

[0001] The utility model relates to the technology of speed reducers, in particular to an anti-oil leakage structure of a breather cap. Background Technique

[0002] A speed reducer is an independent component composed of gear transmission, worm transmission, and gear-worm transmission enclosed in a rigid housing, and is commonly used as a speed reduction transmission device between a prime mover and a working machine. It plays a role in matching the rotational speed and transmitting torque between the prime mover and the working machine or actuator, and is widely used in modern machinery.

[0003] Heat is generated inside the speed reducer housing due to energy loss, which promotes the acceleration of molecular movement, increases the internal air pressure of the housing, accelerates the aging of internal parts of the housing, and at the same time has a high risk of oil leakage. Therefore, a breather cap is currently provided on the speed reducer housing, and this breather cap uses the pressure difference to adjust the internal pressure of the housing, but the oil is very easy to be output through the breather cap along with the gas, resulting in oil leakage. Therefore, it is necessary to study a solution to solve the above problems. Content of the Utility Model

[0004] In view of this, in view of the deficiencies existing in the prior art, the main purpose of the present utility model is to provide an anti-oil leakage structure of a breather cap, which can effectively solve the problem that the existing speed reducer housing is very prone to oil leakage.

[0005] To achieve the above purpose, the present utility model adopts the following technical solutions:

[0006] An anti-oil leakage structure of a breather cap includes a three-way pipe, a breather cap, a silencing sheet, and a connecting pipe; the three-way pipe has a connection port, a first mounting hole, and a second mounting hole, and both the first mounting hole and the second mounting hole are communicated with the connection port; the breather cap is installed and connected to the first mounting hole; the silencing sheet is arranged in the first mounting hole and covers the air inlet of the breather cap; one end of the connecting pipe is installed and connected to the second mounting hole.

[0007] Preferably, the silencing sheet is a copper sintered silencing sheet.

[0008] Preferably, the first mounting hole and the connection port are horizontally arranged and directly face and communicate with each other, the second mounting hole faces downward, and the connecting pipe is located below the second mounting hole.

[0009] Preferably, the connecting pipe is a transparent flexible pipe.

[0010] Preferably, the breather cap is a non-pressure breather cap.

[0011] Preferably, a first sealing ring is sleeved at the connection port.

[0012] Preferably, a second sealing ring is clamped between the connecting pipe and the second mounting hole.

[0013] The utility model has obvious advantages and beneficial effects compared with the prior art. Specifically, as can be seen from the above technical solution:

[0014] By adopting a tee pipe and cooperating with a silencing sheet arranged in the first mounting hole to cover the air inlet of the breather cap, the silencing sheet separates into oil and gas. The oil flows back to the reducer housing through the connecting pipe, and the gas is discharged through the breather cap, effectively avoiding the occurrence of oil leakage. Its structure is simple, the installation is convenient, and the maintenance and upkeep are easy, which is worthy of popularization and use. Description of the Drawings

[0015] Figure 1 is a schematic structural view of a preferred embodiment of the utility model.

[0016] Description of the Reference Numerals in the Drawings:

[0017] 10. Tee pipe 11. Connection port

[0018] 12. First mounting hole 13. Second mounting hole

[0019] 20. Breather cap 30. Silencing sheet

[0020] 40. Connecting pipe 41. First joint

[0021] 42. Second joint 51. First sealing ring

[0022] 52. Second sealing ring Detailed Embodiment

[0023] Please refer to Figure 1 as shown, which shows the specific structure of a preferred embodiment of the utility model, including a tee pipe 10, a breather cap 20, a silencing sheet 30, and a connecting pipe 40.

[0024] The tee pipe 10 has a connection port 11, a first mounting hole 12, and a second mounting hole 13, and both the first mounting hole 12 and the second mounting hole 13 communicate with the connection port 11. In this embodiment, the connection port 11 has an external thread structure, and a first sealing ring 51 is sleeved at the connection port 11 for sealing installation and connection with the reducer housing. The first mounting hole 12 and the connection port 11 are horizontally arranged and are directly opposite and communicate with each other, and the second mounting hole 13 faces downward.

[0025] The breather cap 20 is installed and connected to the first mounting hole 12. In this embodiment, the breather cap 20 is a non-pressure breather cap.

[0026] The silencing sheet 30 is arranged in the first mounting hole 12 and covers the air inlet of the breather cap 20. In this embodiment, the silencing sheet 30 is a copper sintered silencing sheet.

[0027] One end of the connecting tube 40 is mounted and connected to the second mounting hole 13. In this embodiment, the connecting tube 40 is a transparent hose, allowing real-time observation of oil level changes, significantly reducing the time required to manually determine if an oil shortage is present. The hose also dissipates heat. The connecting tube 40 is located below the second mounting hole 13. A second sealing ring 52 is interposed between the connecting tube 40 and the second mounting hole 13. Furthermore, one end of the connecting tube 40 has a first connector 41 fixedly connected to the second mounting hole 13, and the other end of the connecting tube 40 has a second connector 42.

[0028] The method of using this embodiment is described in detail as follows:

[0029] During use, connect the connector 11 to the gas-liquid outlet of the reducer housing, and connect the other end of the connecting pipe 40 to the return port of the reducer housing. The muffler plate 30 creates high- and low-pressure zones within the tee 10. The molecular gaps between the gas molecules are much smaller than those between the oil molecules, and the oil-gas mixture is separated into oil and gas at the muffler plate 30. When the gas pressure in the reducer housing is greater than the pressure outside the air, the gas is directly discharged into the air by opening the breathable cap 20, while the oil enters the connecting pipe 40 by gravity and low pressure (the blocking position of the muffler plate 30 is considered high pressure), and then flows back into the reducer housing.

[0030] The design focus of the utility model is: by adopting a three-way pipe, and cooperating with a silencer plate set in the first mounting hole and covering the air inlet of the breathable cap, the silencer plate is used to separate the oil and gas, the oil flows back to the reducer case through the connecting pipe, and the gas is discharged through the breathable cap, which effectively avoids the occurrence of oil leakage. It has a simple structure, is easy to install, and is convenient to maintain and service, and is worthy of popularization and use.

[0031] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific implementations of the present invention without inventive effort, and such implementations will fall within the scope of protection of the present invention.

Claims

1. An anti-oil leakage structure for a breathable cap, characterized in that: It includes a tee, a breather cap, a silencing piece and a connecting pipe; the tee has a connection port, a first mounting hole and a second mounting hole, and both the first mounting hole and the second mounting hole communicate with the connection port; the breather cap is installed and connected to the first mounting hole; the silencing piece is arranged in the first mounting hole and covers the air inlet of the breather cap; one end of the connecting pipe is installed and connected to the second mounting hole.

2. The anti-oil leakage structure of a breathable cap according to claim 1, characterized in that: The silencing piece is a copper sintered silencing piece.

3. The anti-oil leakage structure of a breathable cap according to claim 1, characterized in that: The first mounting hole and the connection port are horizontally arranged and directly face and communicate with each other. The second mounting hole faces downward, and the connecting pipe is located below the second mounting hole.

4. The oil leakage prevention structure of a breathable cap according to claim 1, characterized in that: The connecting pipe is a transparent flexible pipe.

5. The anti-oil leakage structure of a breathable cap according to claim 1, characterized in that: The breather cap is a non-pressure breather cap.

6. The anti-oil leakage structure of a breathable cap according to claim 1, characterized in that: A first sealing ring is sleeved at the connection port.

7. The oil leakage prevention structure of a breathable cap according to claim 1, characterized in that: A second sealing ring is clamped between the connecting pipe and the second mounting hole.

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