Intelligent non-pulse grouting pump for indoor model test and using method of intelligent non-pulse grouting pump

An indoor model and test technology, applied in the direction of pumps, pump control, piston pumps, etc., can solve the problems of grouting pressure, grouting volume not clear, grouting pressure instability, difficult to meet indoor model tests, etc., to overcome The effect of grouting pressure instability

CN108386331APending Publication Date: 2018-08-10BEIJING JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-08-10

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Abstract

The embodiment of the invention provides an intelligent non-pulse grouting pump for an indoor model test and a using method of the intelligent non-pulse grouting pump. The grouting pump comprises a pump body, a piston rod, a pumping system, a slurry storage tank, a slurry conveying pipe, a slurry discharging pipe, a hydraulic system and a PLC control system. The using method comprises the steps that the PLC control system sets the grouting pressure or the grouting speed, transmits signals to the hydraulic system and adjusts and propels an oil cylinder to control the reciprocating motion of thepiston; when the piston moves upwards, a steel ball in the upper part seals a rod cavity, the size is reduced, and grouting is realized; and when the piston moves downwards, a steel ball in the lowerpart seals a rodless cavity, the size is reduced, and grouting is realized. According to the intelligent non-pulse grouting pump for the indoor model test and the using method of the intelligent non-pulse grouting pump, high-flow, high-pressure and high-precision grouting requirements can be met, quantitative control and monitoring can be effectively realized on the grouting amount and the grouting speed, and meanwhile, during the reciprocating motion, the same grouting amount is achieved at the same grouting speed, so that the guarantee is provided for achieving accurate control; and the test data are easy to collect, so that the grouting pump can be widely applied to the indoor model test.
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Description

technical field

[0001] The invention relates to the technical field of grouting pumps, in particular to an intelligent non-pulse grouting pump for indoor model tests and a usage method thereof. Background technique

[0002] Grouting is widely used in various practical projects, especially in the process of shield tunneling, grouting behind the wall and secondary grouting are very important construction procedures. At present, tunnel construction at home and abroad is in full swing, especially the construction of shield tunnels is also increasing, and the construction environment faced by builders is becoming increasingly complex. During the grouting process, factors such as grouting pressure and grouting volume cannot be determined clearly, which have a huge impact on shield tunneling efficiency and tunneling posture, and it is urgent to conduct research and exploration through laboratory tests.

[0003] Compared with the actual grouting project, the indoor grouting test ha...

Examples

Embodiment 1

[0058] The embodiment of the present invention provides an intelligent non-pulse grouting pump for indoor model testing and its use method. The PLC control system is used to transmit signals to control the activity of the propulsion cylinder, thereby adjusting the movement of the piston rod and changing the pumping system. The pressure in the cavity and the rodless cavity can achieve the same grouting speed, and can realize continuous grouting without pulse when the piston rod moves up and down.

[0059] An aspect of the embodiments of the present invention provides an intelligent non-pulse grouting pump for indoor model tests.

[0060] The structural diagram of an intelligent non-pulse grouting pump for indoor model tests provided by the embodiment of the present invention is as follows: figure 1 As shown, the device includes: pump body, piston rod, pumping system, slurry storage tank, slurry delivery pipe, slurry outlet pipe, propulsion cylinder, hydraulic system and PLC con...

Embodiment 2

[0114] This embodiment provides an intelligent non-pulse grouting pump for indoor model tests, and its specific realization structure is as follows figure 1 As shown, it may specifically include the following components:

[0115] An intelligent non-pulse grouting pump for indoor model testing, including: pump body 1, piston rod 2, pumping system 3, slurry storage tank 4, slurry delivery pipe 5, slurry delivery pipe 6, propulsion cylinder 7, hydraulic system 8 and PLC control system 9; the pumping system 3 is installed on the pump body 1, the pumping system 3 is connected with the propulsion cylinder 7 through the piston rod 2, and the propulsion cylinder 7 is controlled by the hydraulic system 8 Provide power to realize propulsion control, the PLC control system 9 transmits the signal to the servo valve on the hydraulic system 8 to control the reciprocating motion of the propulsion cylinder 7, the pumping system 3 is connected to the slurry delivery pipe 5 and The slurry outl...