Steering hydraulic system and crane

A technology of steering hydraulic pressure and steering gear, which is applied to steering mechanisms, fluid steering mechanisms, power steering mechanisms, etc., which can solve problems such as inability to take into account sensitivity, and achieve the effects of improving flow capacity, fast response, and improving steering sensitivity

Active Publication Date: 2022-01-04
SANY AUTOMOBILE HOISTING MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the embodiment of the present invention is dedicated to providing a steering hydraulic system and a crane, which can solve the problem of not being able to take into account the sensitivity when allowing a large flow to pass through

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  • Steering hydraulic system and crane
  • Steering hydraulic system and crane

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Embodiment Construction

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, 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 belong to the protection scope of the present invention.

[0019] In addition, in the exemplary embodiments, since the same reference numerals denote the same components with the same structure or the same steps of the same method, if one embodiment is exemplarily described, only the same elements as those already described will be described in other exemplary embodiments. Different structures or methods of the embodiments are described.

[0020] Throughout the specification and claims, when one element ...

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Abstract

The invention provides a steering hydraulic system and a crane. The steering hydraulic system comprises a steering gear which is connected with a steering axle and is configured to open or close a channel according to a steering signal, a control valve body which is connected with the steering gear and is constructed to open or close a valve according to pilot oil so as to open or close a corresponding oil way, a steering oil cylinder which is connected with the steering gear and the control valve body, and a power mechanism which is connected with the steering gear and the control valve body, and the power mechanism is configured to provide power for the steering oil cylinder through the channel and the oil way; the control valve body and the steering gear are arranged in parallel, and the steering gear sends the pilot oil to the control valve body. The problem that the sensitivity cannot be considered when large flow is allowed to pass through can be solved.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a steering hydraulic system and a crane. Background technique [0002] At present, in the technical field of truck cranes, the hoisting capacity of cranes continues to increase, and the corresponding counterweights are getting heavier and heavier. In order to reduce the user's cost of use, truck cranes are required to have stronger driving capabilities with counterweights. Cranes often need to work under complex site conditions. In order to meet various complex operating conditions, the crane needs to have a flexible steering function. The steering system is an important mechanism for the truck crane to realize the steering function. When the crane counterweight increases, the corresponding Higher requirements are placed on the steering system of the crane. In the traditional steering system, the high sensitivity is because the structure is easy to limit the flow p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/06B62D5/07B62D5/08
CPCB62D5/06B62D5/062B62D5/07B62D5/08
Inventor 何全文谢文尚吴彬
Owner SANY AUTOMOBILE HOISTING MACHINERY
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