Control system of bolt mechanism and crane

A technology of control system and arm pin, which is applied in the field of bolt mechanism control system, can solve the problems of mechanical interlock safety hazards, uncontrolled sliding of the boom, and retraction of arm pins at the same time, so as to improve safety and reliability and solve potential safety hazards problems, the effect of improving the service life

Active Publication Date: 2012-05-02
ZOOMLION HEAVY IND CO LTD
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  • Summary
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Problems solved by technology

Therefore, once the mechanical interlock fails, the cylinder pin and the arm pin may retract at the same time, which will cause the boom to slide out of control from a high place, causing the crash of the machine and the death of the machine. Therefore, this mechanical interlock There is a great security risk
In addition, in the existing bolt mechanism control system, during the dynamic tel

Method used

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  • Control system of bolt mechanism and crane
  • Control system of bolt mechanism and crane
  • Control system of bolt mechanism and crane

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[0023] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation methods, methods, steps, structures, Features and their effects are detailed below.

[0024] The foregoing and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of preferred embodiments with reference to the drawings. Through the description of the specific implementation mode, the technical means and effects adopted by the present invention to achieve the predetermined purpose can be understood more deeply and specifically, but the attached drawings are only for reference and description, and are not used to explain the present invention. limit.

[0025] figure 1 It is a structural schematic diagram of a latch mechanism control system disclosed in a preferred embodiment of the present invention. like figure 1 As shown, t...

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Abstract

The invention relates to a control system of a bolt mechanism, which comprises a hydraulic oil tank, an oil pump, a first reversing valve, a multi-channel group, an arm pin oil cylinder, a cylinder pin oil cylinder, a second reversing valve and a third reversing valve. The first reversing valve is connected with the oil pump and comprises a first outlet/inlet and a second outlet/inlet. The multi-channel group comprises a first channel, a second channel, the first outlet/inlet and the second outlet/inlet, wherein the first outlet/inlet of the multi-channel group is communicated with the first channel, the second outlet/inlet is communicated with the second channel, the first channel of the multi-channel group is connected with the first outlet/inlet of the first reversing valve, and the second channel of the multi-channel group is connected with the second outlet/inlet of the first reversing valve. The second reversing valve and the arm pin oil cylinder are sequentially connected between the first outlet/inlet and the second outlet/inlet of the multi-channel group, and the third reversing valve and the cylinder pin oil cylinder are sequentially connected between the second outlet/inlet and the first outlet/inlet of the multi-channel group.

Description

technical field [0001] The invention relates to a bolt mechanism control system, in particular to a bolt mechanism control system for the telescopic arm of construction machinery and a corresponding crane. Background technique [0002] At present, most of the large-tonnage and super-large-tonnage truck cranes at home and abroad use single-cylinder multi-section mechanical telescopic arms, and the mechanical telescopic arms cooperate with the latch mechanism during the telescopic process to complete the telescopic process. The control mode of the existing bolt mechanism control system is to supply oil through the gear pump, and the hydraulic oil reaches the cylinder pin or the arm pin after passing through the first directional control valve and the second directional control valve, wherein the second directional control valve is used to control the hydraulic pressure. Whether the passage between the oil circuit and the gear pump or the oil tank is conducted, and the first di...

Claims

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Application Information

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IPC IPC(8): B66C13/20B66C23/693B66C23/88
CPCB66C23/705B66C23/88B66C23/708B66C13/20
Inventor 詹纯新刘权张建军李英智胡廷江李怀福李义
Owner ZOOMLION HEAVY IND CO LTD
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