Automatic control device for prestressing force tensioning device

A technology of automatic control and tensioning device, applied in non-electric variable control, mechanical pressure/force control, control/regulation system, etc., can solve problems such as increasing construction time

Active Publication Date: 2012-01-04
宁夏公路桥梁建设有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This solution is similar to the previous two patents, and it is more inclined to comprehensive testing. Its disadvantage is that it brings additional devices to loading and increases constr

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  • Automatic control device for prestressing force tensioning device
  • Automatic control device for prestressing force tensioning device
  • Automatic control device for prestressing force tensioning device

Examples

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Embodiment Construction

[0018] An automatic control device for a prestressed tensioning device, which includes a tool anchor 6, a hollow jack 3 matched with the tool anchor 6, and a hydraulic pump 11 connected to the oil inlet pipe 8 and the oil outlet pipe 7 at the lower part of the hollow jack 3 ,Such as figure 1 As shown: the upper side of the above-mentioned hollow jack 3 is equipped with a wireless tension displacement sensor 2, and the pump body of the hydraulic pump 11 is provided with a sub-controller 13 for controlling its electronically controlled valve group 12, and is also provided with a coordination unit. The host computer 14 and the remote web server 10 of tension endpoints.

[0019] The above-mentioned wireless tension displacement sensor 2 includes a housing, and the interior of the housing is assembled from a single-chip microcomputer main control board and a drawstring displacement sensor from top to bottom, and a lithium battery is installed on one side of the drawstring displacem...

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Abstract

The invention relates to an automatic control device, in particular to the automatic control device for a prestressing force tensioning device. The automatic control device comprises a tool anchor piece, a hollow lifting jack which is matched with the tool anchor piece, and a hydraulic pump which is connected with an oil outlet pipe through an oil inlet pipe on the lower part of the hollow lifting jack; the automatic control device is characterized in that: one side of the upper part of the hollow lifting jack is matched with a wireless tension displacement sensor; and a pump body of the hydraulic pump is provided with a secondary control machine which controls an electronic control valve bank and a master control machine and a remote Web server which coordinate all tension end points. The automatic control device has a unique structure, is convenient to operate and use, and can realize the high-precision control measurement of tension amount, improve construction efficiency and accuracy, reduce labor intensity and realize the automation of a prestressed member tensioning device.

Description

technical field [0001] The invention relates to an automatic control device, in particular to an automatic control device for a prestress tension device. Background technique [0002] Prestressed concrete members are the structural forms often used in road and bridge construction at present. At present, the construction method of prestressed tension method in China basically adopts the method of manual control. According to the tension force / oil pressure linear regression equation calibrated by the jack, the on-site operators control the switch and valve port size of the control valve of the oil pump to complete the work. For operations such as pre-tensioning, tensioning check, full tensioning, top pressure anchoring, return trip, etc., all control quantities are manually operated, measured and recorded by the operator according to the operation flow chart. In the construction process, there will inevitably be: 1) The operator confirms whether the tension is in place accord...

Claims

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Application Information

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IPC IPC(8): E04G21/12E01D21/00G05D15/01
Inventor 段宁沈建成武良缮薜升荣盛鑫军
Owner 宁夏公路桥梁建设有限公司
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