Oil drain device and oil pan
A technology of oil draining device and oil pan, which is applied in the direction of oil pan, engine components, adding/discharging lubricant, etc. It can solve the problems of incomplete oil draining and slow oil draining, and achieve recovery and utilization, oil draining Thoroughly avoid the effect of secondary pollution
Active Publication Date: 2018-07-03
WEICHAI POWER CO LTD
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- Application Information
AI Technical Summary
Problems solved by technology
[0004] The technical problem to be solved by the present invention is to solve the problem of slow and incomplete oil discharge in the oil discharge device in the prior art
Method used
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Embodiment 2
[0039] The technical content of the second embodiment that is the same as the first embodiment will not be described repeatedly, and the disclosed content of the first embodiment also belongs to the disclosed content of the second embodiment. The difference between the second embodiment and the first embodiment is that: Figure 8 As shown, the reset member 5 in this embodiment is an elastic member. Specifically, after a spring or rubber is compressed for a certain amount, the external force removes the parts that can self-recover. surface and the upper surface of the piston 4. When the oil is discharged, the piston 4 is pushed upward under the action of an external force so that the inner cavity of the piston 4 communicates with the first through hole 2. After the oil discharge is completed, the piston 4 falls into the second through hole 3 under the elastic force of the reset member, and connects with the second through hole 3. The inner wall of hole 3 is a tight fit.
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The invention relates to the technical field of engine oil discharge devices, in particular to an oil drainage device and an oil sump. The oil drainage device comprises an oil drainage plug seat, wherein a step through hole is formed in the axial direction of the oil drainage plug seat, the step through hole comprises a first through hole and a second through hole, and the aperture of the first through hole is greater than the aperture of the second through hole; a piston is arranged in the step through hole, sliding sealing fit is formed between the piston and the inner wall of the second through hole, a cavity with a downward opening is formed in the piston, a second liquid passage is formed in the lateral wall of the cavity and is used for communicating the first through hole with the cavity when the piston moves upwards; a limiting support is arranged at one end, provided with the first through hole, on the oil drainage plug seat, and a reset member is arranged between the limiting support and the piston to be used for self reset of the piston; a plurality of first liquid passages communicating with the first through hole are formed in the limiting support; and a limiting boss is arranged on the inner wall of the lower part of the second through hole. The oil drainage device can increase the oil drainage speed and is more thorough in oil drainage.
Description
technical field [0001] The invention relates to the technical field of engine oil discharge, in particular to an oil discharge device and an oil pan. Background technique [0002] Gearboxes are widely used for speed change in vehicles, ships, and engineering equipment. Oil replacement is an important part of gearbox repair and maintenance. In order to replace the engine oil, the gearbox adopts the structure of setting an oil drain plug on the oil pan. When changing oil, unscrew the oil drain screw first, drain the waste oil directly from the oil drain hole, and then add new oil from the filler port. When the waste oil naturally flows out from the oil drain hole, it is easy to splash, the oil drain process is slow, and the oil sludge at the bottom of the oil pan is not clean. Contents of the invention [0003] (1) Technical problems to be solved [0004] The technical problem to be solved by the present invention is to solve the problem of slow oil discharge and incomple...
Claims
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IPC IPC(8): F01M11/04F01M11/00
CPCF01M11/0004F01M11/0408F01M11/045
Inventor 隋鹏超王德成栗明李广
Owner WEICHAI POWER CO LTD