Electro-hydraulic automatic control device of grab bucket type crawler crane

An automatic control device and crawler crane technology, applied in the electrical control system, grab crane main winch automatic lifting and lowering hydraulic fields, can solve the problems of long working hours and high intensity, and achieve lightening labor intensity, reducing work intensity, The effect of improving work efficiency

Pending Publication Date: 2019-11-22
宇通重型装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the working process of the grab crane, the lifting and lowering of the main hoist requires repeated manual operations by the staff, which has the problem of long working hours and high intensity

Method used

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  • Electro-hydraulic automatic control device of grab bucket type crawler crane
  • Electro-hydraulic automatic control device of grab bucket type crawler crane
  • Electro-hydraulic automatic control device of grab bucket type crawler crane

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Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] An electro-hydraulic automatic control device for a grab-type crawler crane, comprising a plunger pump group 1, a pilot gear pump 2, a solenoid valve group 4 for controlling a main winch clutch, and a caliper proportional reducer for controlling a main hoist caliper brake. The pressure valve group 15 and the hydraulic control reversing valve 5 controlling the brake of the main winch reducer, the main winch lifting control part and the control module; the control module includes a controller, a pressure sensor group connected to the signal input end of the controller, and a detection The speed measuring sensor of the main hoisting speed, the electromagnetic valve group 4 connected with the signal output end of the controller, the electromagnetic reversing valve I13, and the electromagnetic reversing valve II14.

[0020] The pres...

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PUM

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Abstract

The invention discloses an electro-hydraulic automatic control device of a grab bucket type crawler crane. The electro-hydraulic automatic control device comprises a plunger pump set, a pilot gear pump, an electromagnetic valve set for controlling a master winch clutch, a caliper disc proportional pressure reducing valve set for controlling the master winch caliper disc brake, a hydraulic controlreversing valve for controlling the master winch speed reducer brake, a master winch lifting control part and a control module. The automatic lifting and lowering functions of the master winch of thegrab crane meet the automatic control of the crane under the grab working condition, manual operation is not needed in the process, and the labor intensity of workers is relieved. Meanwhile, when thecrane master winch needs to work for a long time, an operator only needs to observe the working state of the crane without a get-on operation; and the grab crane can work efficiently for a long time,manual error operation is reduced, and the probability of safety accidents is reduced.

Description

technical field [0001] The invention belongs to a main winch automatic lifting and lowering hydraulic and electric control system of a grab crane of construction machinery, and in particular relates to an electro-hydraulic automatic control device of a grab crawler crane. Background technique [0002] During the working process of the grab crane, the lifting and lowering actions of the main winch need to be completed by the staff repeatedly through manual operation, which has the problems of long working hours and high intensity. Therefore be badly in need of designing a kind of device that can effectively reduce the labor intensity of the staff with main winch automatic lifting and lowering function. Contents of the invention [0003] In order to solve the above problems, an electro-hydraulic automatic control device of a grab crawler crane is provided. [0004] The purpose of the present invention is achieved in the following manner: [0005] An electro-hydraulic autom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C13/32
CPCB66C13/32
Inventor 郭旭东李立敏刘春鹏任卫涛张成张铁恒周国云白林迎周亚祥张渊
Owner 宇通重型装备有限公司
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