Running positioning device for double-beam trolley of crane

A technology of operation positioning and cranes, which is applied in the directions of transportation and packaging, traveling mechanism, load hanging components, etc., and can solve the problems of poor positioning accuracy, unstable operation, unsuitable positioning accuracy, etc.

Inactive Publication Date: 2011-03-02
杨秀杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the operation of the crane trolley is mainly driven by the driving device to drive the wheel device to run on the main girder. The running speed is determined by the output speed of the driving device and the diameter of the wheel. The positioning accuracy is poor, and repeated adjustments are required to make the trolley reach the predetermined position. In addition, the trolley is loaded, the inertia is large, and the operation is unstable. It is not suitable for working conditions that require high positioning accuracy.

Method used

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  • Running positioning device for double-beam trolley of crane
  • Running positioning device for double-beam trolley of crane
  • Running positioning device for double-beam trolley of crane

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Embodiment Construction

[0013] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0014] see Figure 1-2 , a running positioning device for a double-girder trolley of a crane, comprising a bracket fixedly installed on the end beam 1 of the trolley, a support shaft 3 is installed on the bracket through a bearing, a gear 4 is fixedly installed at one end of the support shaft 3, and a rotation counter 5 is fixedly installed at the other end , in order to protect the rotary counter 5 from the impact of the working environment, a protective cover 14 is installed outside the counter. On the main girder 6 of the crane, a rack 7 is fixedly installed, and the gear 4 and the rack 7 are meshed.

[0015] In this embodiment, the bracket is preferably two parts, the upper bracket 2 / 1 and the lower bracket 2 / 2, the upper bracket 2 / 1 is ...

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Abstract

The invention relates to a running positioning device for a double-beam trolley of a crane. The device is characterized by comprising a holder and a support shaft, wherein the holder is fixedly installed on the end beam of the trolley; the support shaft is installed on the holder through a bearing; one end of the support shaft is fixedly equipped with a gear, and the other end of the support shaft is fixedly equipped with a revolution counter; and a rack is fixedly installed on the main beam of the crane and is meshed with the gear. In the invention, the number of meshed teeth of the gear and the rack is captured by the revolution counter, a signal of the number of meshed teeth is transmitted to a control system, then the control system performs variable frequency control on the motor of the trolley according to the signal and an actually measured residual distance signal, the speed of the trolley is gradually reduced, the motor is power off when the trolley arrives at a preset position, and the trolley stops stably.

Description

technical field [0001] The invention relates to the technical field of cranes, in particular to a running positioning device for a double-girder trolley of a crane. Background technique [0002] At present, the operation of the crane trolley is mainly driven by the driving device to drive the wheel device to run on the main girder. The running speed is determined by the output speed of the driving device and the diameter of the wheel. The positioning accuracy is poor, and repeated adjustments are required to make the trolley reach the predetermined position. In addition, the trolley is loaded, has large inertia, and unstable operation, so it is not suitable for working conditions that require high positioning accuracy. Contents of the invention [0003] In order to solve the technical problems in the known technology, the present invention provides a crane double-girder trolley operating positioning device with stable operation and high positioning accuracy. [0004] The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C9/14B66C13/16
Inventor 庞春芳
Owner 杨秀杰
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