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Mechanical weighing mechanism of high pedestal jib crane dynamic grab bucket electronic weighing scale

A portal crane and weighing mechanism technology, which is applied in the field of mechanical weighing mechanism, can solve the problems of measurement inaccuracy, repeatability error, and poor measurement consistency, and achieve the effect of accurate and rapid measurement and cost saving

Inactive Publication Date: 2008-08-20
石家庄泽厚科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The above-mentioned existing technology is applied to port portal cranes, and there are poor measurement consistency and gross errors caused by changes in boom width, rotation and boom angle, and lifting speed changes during the operation of the portal crane. The shortcomings of measurement inaccuracy and repeatability error

Method used

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  • Mechanical weighing mechanism of high pedestal jib crane dynamic grab bucket electronic weighing scale
  • Mechanical weighing mechanism of high pedestal jib crane dynamic grab bucket electronic weighing scale
  • Mechanical weighing mechanism of high pedestal jib crane dynamic grab bucket electronic weighing scale

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings, but not as a further limitation to the present invention.

[0033] The overall technical structure of this embodiment is shown in the figure, in which the shaft heads of the drive shafts of the main and auxiliary hook drums 1 and 2 of the door machine are respectively connected with the bearing housings 3 and 4 and then press-fitted on the upper surfaces of the flat sensors 5 and 6 , the plate type sensors 5,6 are fixed on the chassis 12 of the door machine room through the support bases 7,8, and the lower end of the door machine mechanical structural load limiter 13 is equipped with a spoke type load cell 14, which is connected with the plate sensor 5, 6 form the main weighing mechanism of the Trinity.

[0034] The automatic counting mechanism used for amplitude modulation and weighing compensation of the door machine grab electronic scale includes counter frames 29, 30...

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Abstract

The invention relates to a mechanical weighting mechanism of the electronic scale of dynamic grabbing bucket of the gantry crane, which belongs to the weighting device, wherein the pivot brackets of the transmission shaft of the major-minor hook wound rolls of the door machine are respectively connected with the bearing support and then are press-arranged on the upper surface of the flat sensor. The flat sensor is fixed on the underframe of the door machine room by a holder base. A wheel rib load cell is arranged at the lower terminal of the load limiter of the door mechanical structure, and the major weighting mechanism is composed by the wheel rib load cell and the flat sensor. The invention also comprises an automatic counting mechanism which is used for the weighing compensation of the amplitude modulation of the electronic scale of the grabbing bucket of the door machine and for the automatic counting mechanism of the speed testing, the high weighing compensation testing of the electronic scale of the grabbing bucket of the door machine. The mechanical weighting mechanism of the electronic scale of dynamic grabbing bucket of the gantry crane has the advantages that the problems of measure accuracy lost and extremely big repeated error of the prior art are solved, and the weighting mechanism has rapid, accurate, stable and reliable measure, the cost is saved for the harbour, and the work efficiency and the economic benefit of loading and unloading are improved.

Description

technical field [0001] The invention belongs to a weighing device, in particular to a mechanical weighing mechanism of a dynamic grab electronic scale of a portal crane. Background technique [0002] In the utility model patent with the patent number 200720100801.0, an improved grab-type electronic scale weighing mechanism is disclosed, including the main and auxiliary hook reel transmission shafts installed on the trolley of the bridge crane and the other end of the shaft support seat The flat sensor in the middle and its upper and lower surfaces are respectively stacked in series with the bearing seat and the support base to form an integral weighing device. The above-mentioned existing technology is applied to port portal cranes, and there are poor measurement consistency and gross errors caused by changes in boom width, rotation and boom angle, and lifting speed changes during the operation of the portal crane. The shortcomings of measurement inaccuracy and repeatabilit...

Claims

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Application Information

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IPC IPC(8): B66C13/16G01G19/18
Inventor 王永康
Owner 石家庄泽厚科技有限公司
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