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Winch device, hydraulic system thereof, using method and operation machine

A technology of hoisting device and hydraulic system, which is applied in the direction of hoisting device, mechanical equipment, fluid pressure actuating device, etc., and can solve problems such as accidents caused by electric control

Active Publication Date: 2021-05-11
SANY AUTOMOBILE HOISTING MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a hoisting device and its hydraulic system, usage method and operating machine, which are used to solve the problem that electric control failure easily causes accidents in the prior art and improve the safety of the hoisting device

Method used

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  • Winch device, hydraulic system thereof, using method and operation machine
  • Winch device, hydraulic system thereof, using method and operation machine
  • Winch device, hydraulic system thereof, using method and operation machine

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Embodiment Construction

[0045] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.

[0046] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right" , "vertical", "horizontal", "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing this The embodiments and simplified descriptions of the invention do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed a...

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Abstract

The invention provides a winch device, a hydraulic system thereof, a using method and an operation machine. The hydraulic system of the winch device comprises a first oil source, two electromagnetic proportional valves, a second oil source, a change-over switch and a third oil source, wherein the first oil source is connected to a pilot control valve and is suitable for being connected to a winch motor through the pilot control valve, a first oil path and a second oil path; the two electromagnetic proportional valves are connected with a pilot part of the pilot control valve and are used for controlling the pilot control valve to reverse; the second oil source is connected to a first valve port of a manual ball valve through a third oil path, and a second valve port of the manual ball valve is connected with a winch brake; the change-over switch is provided with two connection contacts, and the two connection contacts are connected to the two electromagnetic proportional valves respectively; and the third oil source is connected to the two electromagnetic proportional valves, and the first oil path and the second oil path are suitable for switching the mode of connection with the pilot part of the pilot control valve based on the actions of the two connection contacts. The hydraulic system of the winch device can realize safe and reliable emergency operation.

Description

technical field [0001] The invention relates to the technical field of construction machinery, in particular to a hoisting device, a hydraulic system thereof, a use method and an operating machine. Background technique [0002] With the development of construction machinery, taking cranes as an example, more comfortable, safer and more reliable requirements are put forward for the operation of cranes. In order to meet the comfort, the hydraulic systems of more and more cranes, especially high-end models, are almost all Adopt full electric control system. [0003] In the operating system of this crane, the increase of electronic control components also reduces the reliability of the hydraulic system. When the crane is in the process of lifting heavy objects or lowering heavy objects, if the control system fails, the crane and the hoisted objects may be in a dangerous state, and in severe cases, it may cause an overturning accident due to changes in external conditions. Con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66D1/08B66D1/54F15B11/08F15B11/04
CPCB66D1/08B66D1/54F15B11/08F15B11/04
Inventor 邹砚湖安江胜田敬中
Owner SANY AUTOMOBILE HOISTING MACHINERY
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