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Boom controller, control system, control method and pump truck

A controller and jib technology, applied in the processing of building materials, construction, building construction, etc., can solve the problems of inaccurate positioning, large shaking, etc., and achieve the effect of solving large shaking

Active Publication Date: 2018-08-07
河北雷萨重型工程机械有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The object of the present invention is to provide a boom controller, control system, control method and pump truck to solve the problems of large shaking and inaccurate positioning of the boom during startup in the prior art

Method used

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  • Boom controller, control system, control method and pump truck
  • Boom controller, control system, control method and pump truck
  • Boom controller, control system, control method and pump truck

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Embodiment Construction

[0079] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0080] In the present invention, the proportional multi-way valve refers to a multi-way valve whose output flow is proportional to the control current. The starting current means that when the control current reaches a certain value, the proportional multi-way valve will have output flow. This control current is called starting current; if it is lower than the starting current, the proportional ...

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Abstract

The invention discloses a controller, control system and control method of a cantilever crane and a pump truck. The controller comprises a receiving module, a control module and an output module, wherein the receiving module is used for receiving a remote control signal for controlling rotation or unfolding / folding of the cantilever crane; the control module is used for controlling output control current to be switched to starting current from 0mA when the remote control signal indicates that the rotation of the cantilever crane is started or the unfolding / folding of the cantilever crane is started, and the starting current is continuously output within first pre-set time; after the time exceeds the first pre-set time, the control current is controlled to be raised to maximum current according to a target rising gradient; the output module is used for outputting the control current to a proportional multi-way valve; and the proportional multi-way valve is used for outputting hydraulic flow which is in direct proportion to the control current to a cantilever crane rotation structure or a cantilever crane a unfolding / folding structure when the control current is more than or equal to the starting current, so as to control the unfolding / folding of the cantilever crane. The problems in the prior art that the cantilever crane greatly swings and cannot be positioned accurately in a starting process are solved.

Description

technical field [0001] The invention relates to the technical field of concrete pump trucks, in particular to a boom controller, control system, control method and pump truck. Background technique [0002] A concrete pump truck is a machine that uses pressure to continuously transport concrete along a pipeline. Due to its convenient and flexible construction, it is widely used in modern construction. The concrete pump truck is transported to the pouring position through the boom. In the prior art, when the boom starts and stops, the operator needs to control the angle of the remote control handle to control the speed of starting and stopping the boom. The boom works very smoothly. The degree depends on the operating level of the operator. Therefore, it is difficult to guarantee the softness of the operation, and it is easy to cause problems such as large shaking and inaccurate positioning of the boom during startup. Contents of the invention [0003] The object of the pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G21/04E04G21/02
CPCE04G21/02E04G21/0445E04G21/0463
Inventor 张爱武
Owner 河北雷萨重型工程机械有限责任公司
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