Piston assembly with active lubricating function
A technology of piston and function, applied in the direction of piston, cylindrical piston, plunger, etc., can solve the problems of uneven sealing belt between piston and cylinder, scratch marks on the inner wall of the cylinder, eccentric wear of the cylinder, etc., to avoid the metal surface The effect of friction, improving working conditions, reducing movement resistance
Active Publication Date: 2014-01-01
MEISHAN CRRC BRAKE SCI & TECH CO LTD
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Problems solved by technology
[0003] Leakage is one of the faults of the brake cylinder. After the leaked brake cylinder is disassembled on site, it is basically found that the grease of the brake cylinder becomes thin and black. Due to gravity and vehicle The vibration naturally falls to the lower part of the brake cylinder. There is almost no lubricating grease in the upper part, and there are scratch marks on the inner wall of some cylinders. In addition, the existing sealing ring structure is not conducive to the preservation of lubricating grease. The sealing belt of the cylinder body is uneven, which causes the cylinder body to be eccentrically worn
In addition, the misalignment between the brake cylinder push rod and the piston is also the main problem affecting the braking force output of the brake cylinder
Method used
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[0027] Below in conjunction with accompanying drawing, the present invention is described in detail.
[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0029] Such as Figures 1 to 6 As shown, a piston assembly with active lubrication function includes a piston 1, a number of spring sheets 2 are arranged at the bottom of the piston 1, and a ring gear seat 3 is arranged under the bottom of the piston 1, and the spring sheets 2 Cooperate with the ring gear seat 3 to form a ratchet structure. One end of the spring leaf 2 is connected to the bottom of the piston 1, and the other end protrudes along the axial direction of the piston 1. The protruding...
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The invention discloses a piston assembly with an active lubricating function. The piston assembly comprises a piston. A plurality of spring plates are arranged at the bottom of the piston, a gear ring base is arranged below the piston bottom, and the spring plates are matched with the gear ring base to form a ratchet structure. When the piston works, the piston can rotate under the effect of matching of the spring plates and the gear ring base. Grease falling to the lower portion of a brake cylinder naturally can be driven to the upper portion of the brake cylinder through rotation of the piston itself, the brake cylinder grease can circulate in the brake cylinder, and an active lubricating effect is achieved.
Description
technical field [0001] The invention relates to a piston assembly with active lubrication function. Background technique [0002] Spinning sealed brake cylinder is a key component of the braking system of railway freight cars, and the fault of brake cylinder is one of the factors that threaten the safety of railway freight cars. [0003] Leakage is one of the faults of the brake cylinder. After the leaked brake cylinder is disassembled on site, it is basically found that the grease in the brake cylinder has become thinner and blackened. Due to gravity and vehicle vibration, it naturally flows to the lower part of the brake cylinder, and there is almost no grease in the upper part. , There are scratch marks on the inner wall of some cylinders. In addition, the existing sealing ring structure is not conducive to the preservation of grease. In addition, the misalignment between the push rod and the piston of the brake cylinder is also the main problem affecting the output of...
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IPC IPC(8): F16J1/08
Inventor 肖晨刘毅李研乐安鸿肖维远
Owner MEISHAN CRRC BRAKE SCI & TECH CO LTD