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Control method and system for working device and engineering machinery used for traction work

The technology of a working device and a control method is applied to mechanically driven excavators/dredgers, earth movers/shovels, construction, etc., and can solve problems such as low work efficiency, high requirements for the driver's operation level, and poor work quality and other problems to achieve the effect of reducing labor intensity, improving work efficiency and operation quality

Inactive Publication Date: 2012-08-15
SHANTUI CONSTR MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Especially in the construction environment with various soil, rock and terrain conditions, the operator needs to frequently operate the lifting and lowering of the blade, which not only requires a high operating level of the driver, but also inevitably has a large delay and instability. accuracy, resulting in problems such as low work efficiency, poor work quality, and high labor intensity

Method used

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  • Control method and system for working device and engineering machinery used for traction work
  • Control method and system for working device and engineering machinery used for traction work
  • Control method and system for working device and engineering machinery used for traction work

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Embodiment Construction

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0045] The embodiment of the invention discloses a control method and system of a working device and a construction machine for traction work, so as to realize automatic lifting control of the work device of the construction machine for traction work.

[0046] A control method of a working device disclosed in this embodiment, such as figure 1 shown, including steps:

[0047] S101. Obtaining the turbine speed and the engine speed;

[0048] S102. Calculate the spee...

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Abstract

The invention discloses a control method and a system for a working device and engineering machinery used for traction work. The control method for the working device comprises the following steps of obtaining the rotating speed of a turbine and the rotating speed of a motor, calculating and obtaining the speed ratio; if the speed ratio is within the range of a preset speed ratio, keeping the position of the current working device; when the speed ratio is greater than the maximum speed ratio in the range of the preset speed ratio, descending the working device till the new speed ratio is not larger than the maximum ratio; and when the speed ratio is less than the smallest ratio in the range of the preset speed ratio, ascending the working device until the new speed ratio is not less than the smallest ratio. The control method for the working device disclosed by the invention can be used for determining the current encountered operation working condition of the working device through the ratio of the rotating speed of the turbine to the rotating speed of the motor, so as to control the ascending and descending of the working device, further, the working efficiency and the work quality of the engineering machinery are improved, and theh labor intensity of a driver is alleviated.

Description

technical field [0001] The present invention relates to the technical field of engineering machinery, more specifically, to a control method and system for a working device and an engineering machinery used for traction work. Background technique [0002] At present, the construction machinery used for traction work, such as bulldozers, has extremely harsh working conditions and working environment. During the shoveling operation, the cycle action is frequent, and the working resistance changes in a large range. This kind of operation mainly depends on the driver to make a judgment according to the resistance of the blade, and manually operate the controller to control the lifting of the blade. Especially in the construction environment with various soil, rock and terrain conditions, the operator needs to frequently operate the lifting and lowering of the blade, which not only requires a high operating level of the driver, but also inevitably has a large delay and instabilit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F9/20E02F3/84
Inventor 宋文龙张立银姚友良徐长重李宣秋张亮宋润州冯西友李乃柱吕文彬
Owner SHANTUI CONSTR MASCH CO LTD
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