Sealing structure of speed reducer
A technology of sealing structure and reducer, which is applied in the direction of engine sealing, mechanical equipment, engine components, etc., can solve the problems of oil seal aging and oil leakage, and achieve the effects of avoiding wear, improving sealing, and avoiding leakage
Pending Publication Date: 2021-09-07
WUHAN SHIP IND
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Problems solved by technology
[0004] However, when the above structure is used for sealing, when the rotating shaft rotates, a large amount of lubricating oil is injected into the oil seal and bearing through the lubrication system. Driven by the operation of the rotating shaft, the lubricating oil continuously impacts and accumulates in the lubricating chamber of the oil seal. There will be a risk of oil leakage between the oil seal and the bearing, and as time goes by, the oil seal will also age, and oil leakage will occur at this time
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[0044] In order to make the purpose, technical solution and advantages of the present disclosure clearer, the implementation manners of the present disclosure will be further described in detail below in conjunction with the accompanying drawings.
[0045] In order to more clearly illustrate the sealing structure of the reducer provided by the embodiment of the present disclosure, the following firstly combines the attached figure 1 Briefly introduce the basic structure of the reducer provided by the embodiment of the present disclosure.
[0046] figure 1 It is a schematic diagram of the sealing structure of the reducer provided by the embodiment of the present disclosure, combined with figure 1 , the reducer includes a box body 101, a rotating shaft 102, and a bearing 103, wherein the side wall of the box body 101 has a box body channel 1011, the first end of the rotating shaft 102 is located in the box body 101, and the second end of the rotating shaft 102 is located in the...
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The invention provides a sealing structure of a speed reducer, and belongs to the technical field of sealing. The sealing structure comprises a rotary sealing sleeve, a connecting base and a gland. The rotary sealing sleeve is inserted into the connecting base, and a first gap is formed between the outer wall of the rotary sealing sleeve and the inner wall of the connecting base. An oil return channel is formed in the connecting base, one end of the oil return channel communicates with the first gap, and the oil return channel is located between the two ends of the first gap. The gland is located at the end of the first gap, one part of the gland and the rotary sealing sleeve are separated from each other, the other part of the gland is connected with the connecting base, a closed cavity is formed between the gland and the rotary sealing sleeve and between the gland and the connecting base, and the closed cavity communicates with the end, close to the gland, of the first gap. According to the sealing structure of the speed reducer, the situations that lubricating oil does not leak, and external foreign matter cannot enter the sealing structure can be ensured.
Description
technical field [0001] The disclosure belongs to the technical field of mechanical seals, and in particular relates to a seal structure of a reducer. Background technique [0002] As a transmission device, the reducer is used to reduce the speed and increase the torque to meet the work needs. The speed reducer includes a box body and a rotating shaft, and the rotating shaft is rotatably inserted in the box body. In order to maintain good lubrication of the rotating shaft, there must be a good seal between the rotating shaft and the casing to prevent lubricating oil from leaking from the gap between the rotating shaft and the casing. [0003] In the related art, the sealing structure of the reducer usually includes an oil seal and a cover body. The oil seal is sleeved on the rotating shaft and communicates with the inside of the bearing on the rotating shaft to form a lubricating chamber. The cover cover is arranged outside the oil seal and connected with the box body. [...
Claims
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IPC IPC(8): F16J15/16F16H57/04F16H57/029F16H57/021
CPCF16J15/16F16H57/0424F16H57/045F16H57/021F16H57/029
Inventor 罗成罗军阙洪军张世平
Owner WUHAN SHIP IND