Retarder
A technology of deceleration top and piston rod, which is used in railway car body parts, rail brakes, transportation and packaging, etc., can solve the problems of large recoil force and poor deceleration effect of vehicles, and achieve the effect of optimal deceleration effect.
Pending Publication Date: 2019-05-24
覃智鹏
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Problems solved by technology
[0003] The purpose of the present invention is to provide a deceleration jack to solve the technical problem in the prior art that the vehicle deceleration effect is not good due to the large recoil force when the deceleration jack returns.
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[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by 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.
[0032] It should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it may be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0033] It is to be understood that the terms "length", "width", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inner", "outer" and other indicated orientations...
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The invention provides a retarder, which comprises an oil cylinder assembly and a base seat assembly which are mutually connected, wherein the oil cylinder assembly comprises a sliding oil cylinder, apiston rod, throttle seats, speed judging structures, valve covers and sealing covers, wherein a valve core in sliding connection with the piston rod is arranged at one end of the piston rod; the throttle seats are in sliding connection with the sliding oil cylinder and sleeved on the outer periphery of the piston rod, throttle holes are formed in the throttle seats, oil paths for hydraulic oil to flow are arranged between the throttle seats and the piston rod, and first sealing pieces are arranged between the throttle seats and the sliding oil cylinder; the speed judging structures are usedfor blocking the oil paths; the valve covers are arranged at the outer periphery of the piston rod, and the valve covers and the valve core form a pressure relief loop for reducing the pressure in thesliding oil cylinder; and the sealing covers are use for sealing an opening of the oil cylinder. According to the retarder, when the sliding oil cylinder returns, the sliding oil cylinder drives thethrottle seat to move upwards through the friction effect of the first sealing pieces, and the hydraulic oil in the sliding oil cylinder returns slowly under the resistance effect generated by the throttling holes, and thus the device has a better deceleration effect.
Description
technical field [0001] The invention belongs to the technical field of railway speed regulation safety, and more specifically relates to a retarder. Background technique [0002] The retarder is an indispensable equipment in the field of speed regulation safety technology for railway shunting operations. When the vehicle rolls on the deceleration top, the top of the deceleration top moves downward under the rolling of the vehicle. When the speed of the vehicle exceeds a certain value, the deceleration top has a deceleration effect on the vehicle. While the current deceleration jack is on the return journey, the recoil force received by the top of the deceleration jack is relatively large, which has the effect of boosting acceleration on the vehicle instead, and the deceleration effect of the vehicle is greatly reduced. Contents of the invention [0003] The object of the present invention is to provide a deceleration jack to solve the technical problem in the prior art th...
Claims
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IPC IPC(8): B61K7/02
Inventor 覃智鹏汤岩峰
Owner 覃智鹏