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Automatic control system and construction method for sand box unloading

An automatic control system and control system technology, applied in the direction of control/adjustment system, non-electric variable control, electric speed/acceleration control, etc., can solve the difficulty of unloading speed control, difficulty in ensuring synchronization, complicated inspection procedures, etc. problem, to achieve the effect of fine unloading speed control, high degree of automation and convenient operation

Active Publication Date: 2018-10-19
ZHEJIANG JINGGONG STEEL BUILDING GRP
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Problems solved by technology

The hydraulic jack unloading method is controlled by a computer and has the characteristics of good synchronization, but the cost is high, and the hydraulic oil pipes are overlapped during construction, the inspection process is complicated, and the work efficiency is low; the traditional sandbox unloading has the characteristics of high carrying capacity and low cost, but Since the unloading speed needs to be controlled manually by manually adjusting the sand outlet valve of the sand box, it is difficult to control the unloading speed, and the synchronization between each independent support point is not easy to guarantee

Method used

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  • Automatic control system and construction method for sand box unloading
  • Automatic control system and construction method for sand box unloading
  • Automatic control system and construction method for sand box unloading

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Embodiment Construction

[0033] An automatic control system for sand box unloading, including a sand box, an electrical control system and a computer control system;

[0034]The sand box is composed of an upper section 1, a lower section 2, dry sand 3, and an electric sand discharge valve 5: the upper section 1 and the lower section 2 are cylinders, and the upper section 1 is nested in the lower section 2, the outer wall of the upper section 1 is closely attached to the inner wall of the lower section 2; the lower section 2 is filled with dry sand 3, and the bottom of the cylinder is provided with a sand discharge pipe 4; the effect of the structural pressure supported by the upper section 1 on its upper part Next, the dry sand 3 in the lower section cylinder 2 is extruded and discharged through the sand discharge pipe 4 and the electric sand discharge valve 5, and the upper section cylinder 1 is gently lowered, thereby completing the unloading of the structure; the electric sand discharge valve 5 is c...

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Abstract

The invention relates to an automatic control system and construction method for sand box unloading. The system is composed of a sand box, an electric control system and a computer control system. A sensor is added based on the traditional sand box unloading device and is used for monitoring the unloading situation of the sand box in the unloading process in real-time; the computer analyzes the monitoring data automatically; and the motor adjusts the unloading speed of the sand ox automatically based on the analysis result. The control system has advantages of fine unloading speed control, good synchronization control performance, high automation degree and convenient operation.

Description

technical field [0001] The invention relates to the field of construction, in particular to an automatic control system for unloading a sand box and a construction method. Background technique [0002] During the installation of large-span space steel structures, it is usually necessary to set up temporary supports as the support in the process of structure forming. After the construction is completed, the temporary supports need to be unloaded, that is, the joint stress state of the temporary supports and the structure is changed to the force of the structure itself. state. If the load transfer is too sudden and unreasonable during the unloading process, it will cause instability or even damage to the structure or supporting system. Therefore, reasonable unloading devices are used to ensure the smooth and safe unloading process. [0003] At present, commonly used unloading devices include screw jacks, sand boxes and hydraulic jacks. Screw jacks are usually only suitable f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D7/06G05D13/62
CPCG05D7/0676G05D13/62
Inventor 胡建华邢遵胜贾尚瑞韩凌刘粟雨虞晓瑶丁尖龙王垒蔡柳鹤吴楚桥胡玲娟成精邹海涛章一瑜茅良
Owner ZHEJIANG JINGGONG STEEL BUILDING GRP
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