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Hydraulic oil circuit automatic switching device

An automatic switching, hydraulic oil circuit technology, applied in the direction of fluid pressure actuation device, fluid pressure actuation system components, mechanical equipment, etc. Effect

Inactive Publication Date: 2011-06-22
CHANGSHA RUICHAO MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved in the present invention is to provide a hydraulic oil circuit automatic switching device for the problem that the hydraulic system of construction machinery is prone to misoperation during work, so as to provide better safety protection for equipment and personnel

Method used

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  • Hydraulic oil circuit automatic switching device
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  • Hydraulic oil circuit automatic switching device

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Embodiment Construction

[0010] see figure 2 , image 3 , on the basis of the original hydraulic system of the excavator, between the main pump 1 and the multi-way valve 2, a two-position three-way hydraulic control valve 3 or a two-position three-way electromagnetic control valve 3 is installed, Realize the switching of the oil circuit from the main pump 1 to the multi-way valve 2. During the working process of the drilling rig, the oil of the main pump 1 is all switched to the three action elements of the drilling rig, and other actions of the excavator have no oil supply, and the actions are all locked. Regardless of whether the operator is a novice or an experienced operator, and whether he is concentrated or not, there is no danger. When the excavator is working, all the oil in the main pump 1 is switched to the multi-way valve 2, and all the actions of the excavator are supplied with oil, but the drilling rig cannot work at this time. The addition of this hydraulic oil circuit automatic swit...

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Abstract

The invention relates to a hydraulic system, in particular relates to a hydraulic oil circuit automatic switching device which comprises a main pump and a multi-way valve, wherein a switching valve is added between the main pump and the multi-way valve, so that the oil circuit from the main pump to the multi-valve can be controlled, only the running of required operational motions in working of a machine is ensured, and other needless operational motions are deadlocked, not only are the accuracy and safety of the working of the machine ensured, but also the efficiency of the integral machine is utilized maximally.

Description

technical field [0001] The invention relates to a hydraulic system, in particular to a hydraulic oil circuit automatic switching device. Background technique [0002] The hydraulic system in the existing construction machinery, some machinery is to transform or directly use the hydraulic system of other machinery, such as the hydraulic system of the cutting drilling machine, please refer to figure 1 , is modified on the hydraulic system of the excavator. Since the operation of the cutting drill is different from that of the excavator, the safety of the operation cannot be guaranteed. Because the excavator is a compound action during work, and the cutting drilling machine has only three actions during the working process. During the working process of the drilling machine, other actions such as turning, walking, and boom lifting are strictly prohibited, otherwise it will cause drilling. There are dangers of rod bending and machine overturning, so the safety of the machine ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B21/00
Inventor 刘自南张良国
Owner CHANGSHA RUICHAO MACHINERY
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