Advance speed control device for shield tunneling machine
A technology of speed control device and shield machine, which is used in mining equipment, earth-moving drilling, tunnels, etc., can solve the problems of scattered layout, large land occupation, and inaccurate flow adjustment, so as to improve linearity and reduce land occupation. The effect of space, simplified structure
Active Publication Date: 2018-07-24
CHINA RAILWAY TUNNEL GROUP CO LTD +1
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Problems solved by technology
The existing speed control device is to install a flow regulating device on the oil inlet pipeline of each hydraulic jack in the same group, so as to realize the independent control of the oil inlet flow of each hydraulic jack, but the existing speed control device is due to Contains multiple flow regulating devices, the layout is scattered, and the floor space is large
Moreover, the change of the opening degree of the orifice of the existing flow regulating device is not linear enough, and the flow adjustment is not accurate enough.
Method used
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Embodiment Construction
[0018] The present invention will be further described below in conjunction with the accompanying drawings.
[0019] See attached figure 1 And attached figure 2 .
[0020] A shield machine propulsion speed control device, the device includes a controller 105, a three-position four-way valve 101, a flow distributor 102, two propulsion jacks, and a displacement sensor 104 is installed on the push rod of each propulsion jack, Displacement sensor 104 is electrically connected with controller 105, thereby the displacement signal of each propulsion jack is transmitted to controller, and flow distributor 102 comprises an inlet and two outlets, and the inlet of flow distributor 102 is connected with three-position four-way valve 101. One working oil port is connected, and each outlet of the flow distributor 102 is respectively connected to a rodless chamber of a propulsion jack, and the rod chamber of the propulsion jack is connected to another working oil port of the three-positio...
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The invention provides an advance speed control device for a shield tunneling machine. The device comprises a controller, a three-position four-way valve, a flow distributor and two propulsion jacks,wherein a displacement sensor is mounted on a push rod of each propulsion jack, and the displacement sensor is electrically connected with the controller, so that a displacement signal of each propulsion jack is transmitted to the controller; the flow distributor comprises an inlet and two outlets; the inlet of the flow distributor is connected with a working port of the three-position four-way valve; each outlet of the flow distributor is communicated with a rodless cavity of each propulsion jack, and a rod cavity of each propulsion jack is communicated with another working port of the three-position four-way valve; and the flow distributor is of an integrated structure. The advance speed control device for the shield tunneling machine, provided by the invention, is compact in structure,small in floor space and accurate in flow adjustment.
Description
technical field [0001] The present invention relates to a shield machine propulsion speed control device, in particular to a shield machine propulsion speed control device which can be precisely controlled. Background technique [0002] The propulsion action of the shield machine is realized by multiple hydraulic jacks. During the forward movement of the hydraulic jacks, the speed of each hydraulic jack needs to be controlled to maintain the coordination and synchronization of the hydraulic jacks. This requires the flow into the hydraulic jacks Take control. The existing speed control device is to install a flow regulating device on the oil inlet pipeline of each hydraulic jack in the same group, so as to realize the independent control of the oil inlet flow of each hydraulic jack, but the existing speed control device is due to Contains multiple flow regulating devices, the layout is scattered, and the floor space is large. Moreover, the change of the opening degree of th...
Claims
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IPC IPC(8): E21D9/093
CPCE21D9/093
Inventor 周建军洪开荣韩伟锋孙振川张兵陈馈李凤远任颖莹郭璐王利明王发民
Owner CHINA RAILWAY TUNNEL GROUP CO LTD