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Grab overhead crane with absolute encoder trolley sprocket alignment system

An absolute value encoder and bridge crane technology, which is applied in the direction of trolley cranes, cranes, transportation and packaging, etc., can solve the problems of data loss and aggravate calculation tasks, so as to improve the reliability of data, reduce workload, reduce The effect of labor intensity

Active Publication Date: 2016-04-13
广东永通起重机械股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the grab crane technology used in waste incineration power plants, the traditional incremental encoder must use the high-speed counter module SM331 to measure the number of pulses to calculate the position coordinates, which continuously increases the calculation tasks of the receiving equipment PLC. When the encoder is powered off, electromagnetic interference or communication is interrupted, it will cause data loss

Method used

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  • Grab overhead crane with absolute encoder trolley sprocket alignment system
  • Grab overhead crane with absolute encoder trolley sprocket alignment system
  • Grab overhead crane with absolute encoder trolley sprocket alignment system

Examples

Experimental program
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Effect test

Embodiment approach

[0038] The sprocket case 10 on both sides of the sprocket 13 is symmetrically installed with two tensioning wheels 16, and the two tensioning wheels 16 are tensioned and connected with the chain 14 at the same time.

[0039] A trolley motor 17 for driving the trolley wheel 4 is installed on the crane trolley 2, so that the crane trolley 2 moves on the guide rail 1, and the trolley motor 17 is electrically connected with the control device.

[0040] The absolute encoder 15 is provided with an encoder shaft 1501, and the encoder shaft 1501 is connected to one end of the sprocket shaft.

[0041] The absolute encoder 15 is installed on one side of the sprocket case 10 through an encoder bracket 18 .

[0042] The control device includes PLC and frequency converter.

[0043] The control device also includes a touch screen, a PROFIBUS-DP bus communication card and a frequency converter, the PROFIBUS-DP bus communication card is installed in the frequency converter card slot, the mul...

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Abstract

The invention relates to a bridge grabbing crane of a trolley chain wheel positioning system with an absolute value encoder. The bridge grabbing crane comprises guide rails, a crane trolley and a control device, wherein a plurality of garbage feeding ports are formed below the guide rails; the crane trolley is connected onto the guide rails in a sliding manner through trolley wheels; a winding drum is mounted on the crane trolley, is connected with a grab bucket through steel wire ropes, and rotates under driving of a motor and a speed reducer; a chain wheel box is fixed on one side of the crane trolley; a chain wheel shaft is connected inside the chain wheel box through a bearing in a rotating manner; a chain wheel is connected onto the chain wheel shaft in a sleeved manner; a chain extending along the length directions of the guide rails is connected onto the chain wheel; one end of the chain wheel shaft is connected with the absolute value encoder; the absolute value encoder is electrically connected with the control device. The system can solve the problem of positioning of the crane, and the positioning precision of the system can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of a grab bridge crane, in particular to a grab bridge crane with an absolute value encoder trolley sprocket positioning system with high precision and high reliability. Background technique [0002] With the increase of urban waste disposal, the demand for grab cranes used in waste incineration power plants is constantly increasing; the requirements for equipment automation and positioning accuracy are also increasing, and the application of absolute encoders on cranes is constantly increasing. In the grab crane technology used in waste incineration power plants, the traditional incremental encoder must use the high-speed counter module SM331 to measure the number of pulses to calculate the position coordinates, which continuously increases the calculation tasks of the receiving equipment PLC. When the encoder loses power, electromagnetic interference or communication interruption, it will cause data loss. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C19/00
Inventor 叶浪陈树鑫黄亚刘莫益来叶炳潮
Owner 广东永通起重机械股份有限公司
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