Hydraulic system of double-telescopic crane

A technology of hydraulic system and hydraulic control system, which is applied in the direction of fluid pressure actuation system safety, fluid pressure actuation system components, cranes, etc., and can solve problems such as manual observation errors, telescopic arm structure damage, and increased manual workload.

Pending Publication Date: 2022-03-22
SOUTH CHINA MARINE MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the double-telescopic crane of this application does not control the extension of the telescopic arm, so when working, it is easy to cause the telescopic arm to stretch out to the limit length and continue to stretch out to cause damage to the structure o...

Method used

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  • Hydraulic system of double-telescopic crane
  • Hydraulic system of double-telescopic crane
  • Hydraulic system of double-telescopic crane

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Embodiment Construction

[0034] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0035] Such as Figure 1 to Figure 13 As shown, a hydraulic system of a double telescopic crane includes a hydraulic control system 1, and the hydraulic control system is used to control a double telescopic crane 2 (in Figure 11 shown in ), the hydraulic control system 1 includes a multi-way valve group 3, an oil tank 10, an oil pump 11, a hook limit valve group 4, an overload protection valve group 5 and a winch control module 12, and the oil tank 10 is connected to the oil pump 11 One end of the oil pump 11 is connected to the oil inlet end of the multi-way valve group 3, and the oil outlet end of the multi-way valve group 3 is connected to the oil tank 10; the hook limit valve group 4 is connected to the multi-way valve group 3 At the control end, an overload protection valve group 5 is provided on the hook limit valve group 4; t...

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PUM

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Abstract

The hydraulic system comprises a hydraulic control system, the hydraulic control system comprises a multi-way valve set, an oil tank, an oil pump, a lifting hook limiting valve set, an overload protection valve set and a winch control module, the oil tank is connected with one end of the oil pump, and the other end of the oil pump is connected with the oil inlet end of the multi-way valve set; the oil outlet end of the multi-way valve group is connected with the oil tank; the lifting hook limiting valve group is connected with a control end of the multi-way valve group; an overload protection valve group is arranged on the lifting hook limiting valve group; according to the structure, the problem that the structure of the telescopic arm is damaged due to the fact that the double-telescopic crane stretches out too long is solved while the double-telescopic crane keeps stretching out, and it can be guaranteed that the double-telescopic crane does not exceed the upper lifting limit during lifting.

Description

technical field [0001] The invention relates to the technical field of telescopic crane systems, in particular to a hydraulic system of double telescopic cranes. Background technique [0002] Ship cranes are machinery used by transport ships for lifting, loading and unloading cargo. It is an important part of ships. Due to the limited space on board, various equipment and hull structure layout are very compact, and the stability of ship cranes directly affects the cargo. Carriage safety. For the sake of safety, each ship must add a mandatory automatic limit function when the ship crane is restricted by the installation location and nearby fixed or non-fixed obstacles. The function is divided into two types: full limit and area limit. The complete restriction is the restriction that the crane is not allowed to enter the rotation area under any working conditions; the area restriction is the restriction that the crane can only rotate and enter the area when the elevation angl...

Claims

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Application Information

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IPC IPC(8): B66C23/683B66C23/693F15B11/16F15B13/02F15B21/041B66D1/08F15B20/00
CPCB66C23/68B66C23/705F15B11/16F15B13/02F15B21/041B66D1/08F15B20/007
Inventor 安万平张福江吴天安霍杰文赵军勇邓旭毅李国昌赵旭
Owner SOUTH CHINA MARINE MACHINERY
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