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Rotating control unit for tower crane

A technology of tower cranes and control units, which is applied in the direction of cranes, load hanging components, safety devices, etc., and can solve problems such as swinging of hanging objects and affecting operation safety

Pending Publication Date: 2018-01-19
江苏众建达丰机械工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the slewing control methods of tower cranes include winding motor plus hydraulic coupler control, winding motor plus eddy current control, RCV (rotation control voltage regulation) torque eddy current motor control, etc. There is a phenomenon of hanging objects swaying, which seriously affects the operation safety

Method used

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  • Rotating control unit for tower crane
  • Rotating control unit for tower crane
  • Rotating control unit for tower crane

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Embodiment Construction

[0020] like figure 1 As shown, the tower crane slewing control unit of the present invention includes a power supply module 6 and a slewing controller 3, and also includes a potentiometer 1 connected to the console handle, and the potentiometer 1 communicates with the slewing control through an analog voltage sampling module 2. The input terminal of the controller 3 is connected, the output terminal of the rotary controller 3 is connected with the rotary control relay 5 through the relay drive module 4, and the power supply module 6 supplies the analog voltage sampling module 2, the rotary controller 3 and the relay drive module 4 respectively. powered by. In this patent application, the rotation control relay 5 includes a left relay and a right relay, and the left and right relays control the tower crane to turn left and turn right respectively.

[0021] Further, such as figure 2 As shown, the power supply module 6 includes a DC-DC module 7 and a full-bridge rectification ...

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PUM

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Abstract

The invention relates to the technical field of engineering machines, in particular to a rotating control unit for a tower crane. The rotating control unit comprises a power module and a rotating controller. The rotating control unit further comprises a potentiometer connected with an operating platform handle. The potentiometer is connected with the input end of the rotating controller through ananalog voltage sampling module. The output end of the rotating controller is connected with a rotating control relay through a relay drive module. The power source module supplies power to the analogvoltage sampling module, the rotating controller and the relay drive module. By the adoption of the structure, the rotating speed of a torque motor is controlled through a voltage command of the operating platform potentiometer, stable start, operation and stop of a rotating mechanism of the tower crane are achieved, and the controller has the fault alarm function; and automatic protection of thedirection operation on the aspect of system control is achieved.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a slewing control unit for a tower crane. Background technique [0002] The tower crane slewing control unit is a kind of tower crane eddy current torque motor and reducer, which controls the speed of the torque motor through the voltage command of the console potentiometer to realize the smooth start, operation and stop of the tower crane slewing mechanism. [0003] At present, the slewing control methods of tower cranes include winding motor plus hydraulic coupler control, winding motor plus eddy current control, RCV (rotation control voltage regulation) torque eddy current motor control, etc. There is a phenomenon of hanging objects swaying, which seriously affects the operation safety. [0004] Chinese invention patent CN 102807519 A discloses a tower crane slewing control system, the tower crane includes a spreader, a jib, a slewing device, a motor and a frequ...

Claims

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Application Information

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IPC IPC(8): B66C13/30B66C15/06B66C23/84
Inventor 牛小迪段文轩
Owner 江苏众建达丰机械工程有限公司