Hydraulic cylinders and vehicle steering systems
A technology of steering system and hydraulic cylinder, applied in fluid steering mechanism, fluid pressure actuating device, etc., can solve the problems of large installation space and complex layout, and achieve the effect of convenient layout, compact overall structure and shortened axial length
Active Publication Date: 2020-08-28
XUZHOU HEAVY MASCH CO LTD
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Problems solved by technology
[0003] At present, in the steering axle system, most of the hydraulic cylinders with integrated power steering and neutral lock functions adopt a separate structure, that is, the power steering cylinder and the neutral lock cylinder are used to realize the steering function and neutral lock function of the system respectively. The installation space of this method is larger and the layout is more complicated
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[0045] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.
[0046] In describing the present invention, it should be understood that the terms "center", "transverse", "longitudinal", "front", "rear", "left", "right", "upper", "lower", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplifie...
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The present invention relates to a hydraulic cylinder and a vehicle steering system, wherein the hydraulic cylinder comprises: a cylinder barrel with a first limiting part inside and a first guide sleeve at the first end; a first piston with a through hole in the center , set in the cylinder, and form a first chamber between the first piston and the first guide sleeve; the first piston rod has a through hole in the center, one end is connected with the first piston, and the other end is passed through the first on the guide sleeve; the second guide sleeve is connected to the end of the first piston rod away from the first piston; and the second piston assembly is arranged in the first piston, the first piston rod and the second guide sleeve; wherein, in the When oil enters the first chamber, the first piston moves away from the first guide sleeve until it is stopped by the first stopper, and the second piston assembly can be blocked by the second guide sleeve and cannot move closer to the second guide sleeve. direction to continue moving. The hydraulic cylinder of the present invention has a neutral locking function, small axial length, compact structure, small volume, light weight and convenient arrangement.
Description
technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a hydraulic cylinder and a vehicle steering system. Background technique [0002] With the development of the economy and the rapid progress of science and technology, the development of crane products has also made great progress. The lifting weight of cranes is gradually increasing. For large-tonnage cranes, each module must have high-tech technology to ensure its safety and reliability. In particular, most truck cranes and all-terrain cranes require the functions of multi-axle bearing, multi-axle steering, and multiple steering modes. Among them, how to ensure that the steering neutral position is locked and interlocked with the steering system when driving at high speed is a key issue. It is the key to ensure safe and stable driving of the vehicle, so it is extremely important to design an oil cylinder that integrates power steering and neutral locking function...
Claims
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IPC IPC(8): F15B15/14B62D5/12
CPCB62D5/12F15B15/1404F15B15/1409
Inventor 朱涛胡小冬任秀枝王积明朱磊
Owner XUZHOU HEAVY MASCH CO LTD