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Multi-way valve for drilling machine

A multi-way valve and drilling rig technology, applied in the field of multi-way valves, can solve the problems of small flow, affecting the working efficiency of drilling rigs, and small pressure loss

Pending Publication Date: 2019-10-18
宁波市博尔法液压有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing multi-way valve is mainly supplied by a single oil pump, using a conventional one-way throttle valve, which has the defects of small flow and small pressure loss in the oil circuit system, which affects the working efficiency of the drilling rig, and the cost is relatively high

Method used

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  • Multi-way valve for drilling machine
  • Multi-way valve for drilling machine
  • Multi-way valve for drilling machine

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Embodiment Construction

[0042] The present invention will be further described in detail below in conjunction with the drawings.

[0043] Such as figure 1 As shown, the multi-way valve for a drilling rig disclosed in this embodiment includes an oil inlet and return valve plate 1000, a motor control valve plate 100, an oil inlet valve plate 700, a pump function switching valve plate 200, and a second transition valve connected in sequence. 800. The walking and supporting control valve plate 300, the third transition valve 900, the feed cylinder valve plate 400, the tripping function conversion valve plate 500, and the gripper function conversion valve plate 600.

[0044] Such as figure 2 As shown, the oil inlet / return valve plate 1000 includes an oil inlet / return valve body 1004. The oil inlet / return valve body 1004 is provided with a first oil inlet passage 1003, a sixth main oil passage 1005, and a first oil return passage 1006 that are connected to each other. , The oil inlet and return valve body 1004...

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Abstract

The invention discloses a multi-way valve for a drilling machine, and belongs to the technical field of multi-way valves. The mainly-existing defects that according to an existing multi-way valve, a single oil pump is used for oil supply, a conventional one-way throttling valve is adopted, in an oil path system, flow is small, and pressure losses are large are mainly overcome. The multi-way valvecomprises an oil inlet and return valve plate, a motor control valve plate, an oil inlet valve plate, a pump function conversion valve plate, a walking and supporting control valve plate, a trip function conversion valve plate and a holder function conversion valve plate which are sequentially connected. The multi-way valve is additionally provided with the oil inlet valve plate and the pump function conversion valve plate, the multi-way valve of a double-oil-pump and double-oil-return open type circulation hydraulic system is formed. When the motor control valve plate is located at the middleposition, an inlet of the oil inlet and return valve plate is connected with a main oil pump, the oil inlet valve plate is connected with an auxiliary oil pump, oil liquid flow converging of the mainoil pump and the auxiliary oil pump can be achieved, and rapid elevating of a feeding oil cylinder is achieved.

Description

Technical field [0001] The invention relates to a multi-way valve, in particular to a multi-way valve for drilling rigs. Background technique [0002] The multi-way valve is a commonly used hydraulic component in the hydraulic system of a drilling rig. Each working link is connected by a number of pipelines and hydraulic components. The drilling rig needs to achieve a variety of actions during the working process. Walk, feed the movement and lift of the cylinder. [0003] The existing multi-way valve is mainly supplied with oil by a single oil pump, and the conventional one-way throttle valve is used. The oil circuit system has the defects of small flow and small pressure loss, which affects the working efficiency of the drilling rig and the cost is relatively high. Summary of the invention [0004] The purpose of the present invention is to provide a drilling rig multi-way valve with a double oil pump and double oil return open type circulating hydraulic system, which increases th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02
CPCF15B13/021
Inventor 竺旭曙邬丹
Owner 宁波市博尔法液压有限公司
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