CN201723393U - Control system of injection pump of shield tail - Google Patents
Control system of injection pump of shield tail Download PDFInfo
- Publication number
- CN201723393U CN201723393U CN2010202087721U CN201020208772U CN201723393U CN 201723393 U CN201723393 U CN 201723393U CN 2010202087721 U CN2010202087721 U CN 2010202087721U CN 201020208772 U CN201020208772 U CN 201020208772U CN 201723393 U CN201723393 U CN 201723393U
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- control system
- valve
- shield tail
- flow valve
- electric hydraulic
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Abstract
The utility model relates to the electric hydraulic control system of hydrocylinder, in particular to a control system of an injection pump of a shield tail. A left proximity switch and a right proximity switch which are respectively arranged at the two ends of a drive cylinder are electrically connected with an electric control system, the electric control system is electrically connected with an electromagnetic change valve and an electric hydraulic proportion flow valve, the electric hydraulic proportion flow valve is communicated with the electromagnetic change valve through a left front oil pipe, and the electromagnetic change valve is communicated with the two ends of the drive cylinder through a left back oil pipe and a right back pipe. The position signal of the drive cylinder is obtained through a non-contact proximity switch. The electric hydraulic proportion flow valve is used to control the speed of the cylinder. Under the premise that the control precision can be ensured, the complex degree of the manufacturing process of the drive cylinder can be reduced, the production cost can be reduced, similarly, the electric hydraulic proportion flow valve is also adopted to meet fully proximate linear output, the flowing performance of the system can fully meet the construction requirement of the shield tail system, and the cost can be reduced.
Description
Technical field
The utility model relates to automatic reverse of shield tail grouting pump hydraulic driving oil cylinder and the motion speed control system in a kind of the hydraulic jack electrohydraulic control system, particularly shield-tunneling construction.
Background technique
Existing shield tail grouting pump control system is to use the equipment and the technology of import more, the sludge pump (being the schwing pump) that wherein has Germany technology to produce.This pump control system cost is very high, and the manufacturing technology difficulty is big, can't make at home, and domestic employed control system depends on import together with control shield tail grouting pump critical component at present.
Chinese patent " 200580017176.7 " discloses a kind of " driving arrangement and the operating method thereof that are used for double pump cylinder slurry pump ", the control technique principle of this patent disclosure is to utilize in driving oil cylinder inside control oil channel to be set, when the driving oil cylinder stroke arrives the control oil channel place, connect the selector valve of driving oil cylinder, selector valve obtains the pressure oil liquid pusher to be moved to spool, makes the driving oil cylinder commutation.This control oil channel, subsidiary very complicated compensation oil circuit, accuracy of manufacturing and difficulty are very big, cost is high.The excessive easy burn-out of current of electric when the oil cylinder speed governing of this patent is the method that adopts the control of speed-adjustable motor pump, cost high, low speed.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of shield tail grouting pump control system, can reduce production costs under the prerequisite of degree of regulation guaranteeing, control is reliable, long service life.
For solving the problems of the technologies described above, the technological scheme that the utility model adopted is: a kind of shield tail grouting pump control system, a left side of being located at the driving oil cylinder two ends respectively is electrically connected with automatical control system near switch near the switch and the right side, and automatical control system is electrically connected with solenoid directional control valve and electro-hydraulic proportional flow valve; Electro-hydraulic proportional flow valve is communicated with solenoid directional control valve by left front oil pipe, and solenoid directional control valve is communicated with the two ends of driving oil cylinder by left back oil pipe and right back oil pipe.
Be provided with the PLC control system in the described automatical control system.
Also be provided with return tube on the described solenoid directional control valve.
A kind of shield tail grouting pump control system that the utility model provides is by adopting the non-contacting position signal of obtaining driving oil cylinder near switch; Adopt the speed of electro-hydraulic proportional flow valve control oil cylinder, guaranteeing under the prerequisite of control accuracy, reduced the complex manufacturing technology degree of driving oil cylinder, reduced cost of production, along with development near switching technique, the non-contacting signal that obtains near switch is enough reliable, affected by environment little, the signal to noise ratio height; Than the technological scheme that adopts the compensation oil circuit can be bigger save production cost; Same, the electro-hydraulic proportional flow valve of employing also can provide enough approximate linearity output, and the servo-actuated performance of system is enough to satisfy the construction requirement of shield construction system, realizes that cost is lower.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
A kind of shield tail grouting pump control system, a left side of being located at driving oil cylinder 7 two ends respectively is electrically connected with automatical control system 13 near switch 8 near the switch 6 and the right side, and automatical control system 13 is electrically connected with solenoid directional control valve 3 and electro-hydraulic proportional flow valve 15; Electro-hydraulic proportional flow valve 15 is communicated with solenoid directional control valve 3 by left front oil pipe 1, and solenoid directional control valve 3 is communicated with the two ends of driving oil cylinder 7 by left back oil pipe 4 and right back oil pipe 10.
Be provided with the PLC control system in the described automatical control system 13.
Also be provided with return tube 12 on the described solenoid directional control valve 3.
1 pair of control procedure describes in conjunction with the accompanying drawings: pressure oil P flows to solenoid directional control valve 3 from left front oil pipe 1.The working position of solenoid directional control valve 3 be magnetoelectricity by driving oil cylinder 7 two ends near switch, promptly a left side is near switch 6 and the right electrical signal decision that provides near switch 8.What adopt in this example near the switch model is: NBN4-12GM40.
When the cylinder barrel of driving oil cylinder 7 moves to right-hand member, trigger the magnetoelectricity right side and produce electrical signal near switch 8, this electrical signal is sent to automatical control system 13, makes logical process by the PLC control system in the automatical control system 13, make left electromagnet 2 energisings of solenoid directional control valve 3, simultaneously right electromagnet 11 dead electricity.Like this, the left working position of solenoid directional control valve 3 is connected, as working position among Fig. 1.Pressure oil enters left back oil pipe 4, flows to the left piston bar 5 of driving oil cylinder 7, enters the left chamber of driving oil cylinder 7.Oil return is flowed out from the right chamber of driving oil cylinder 7, flows out through right piston rod 9, right back oil pipe 10 and return tube 12.Because left piston bar 5, the right piston rod 9 of driving oil cylinder 7 are fixed, and cylinder barrel is movable, the cylinder barrel of driving oil cylinder 7 is to left movement at this moment.
When the cylinder barrel of driving oil cylinder 7 moves to left end, trigger a left side and produce electrical signal near switch 6, this electrical signal is sent to automatical control system 13, makes logical process by automatical control system 13, makes right electromagnet 11 energisings of solenoid directional control valve 3, simultaneously left electromagnet 2 dead electricity.Like this, the right working position of solenoid directional control valve 3 is connected.Pressure oil enters right back oil pipe 10, flows to the right piston rod 9 of driving oil cylinder 7, enters the right chamber of driving oil cylinder 7.Oil return is flowed out from the left chamber of driving oil cylinder 7, flows out this control unit through left piston bar 5, left back oil pipe 4 and return tube 12.This moment, the cylinder barrel of driving oil cylinder 7 moved right.
When cylinder barrel moves right the arrival right-hand member, trigger the magnetoelectricity right side and produce electrical signal near switch 8, enter next work cycle.Like this, when shield machine tunnels, this control unit continuously, automatically work, the driving oil cylinder that makes grouting pump continuously, commutation automatically, shield tail grouting pump can continuously be exported the shield tail and fill slurry medium, realizes the purpose with shield machine driving synchronous grouting.
The control procedure of electric-hydraulic proportion control shield grouting POF: the size of shield grouting POF is that the cylinder barrel by driving oil cylinder 7 drives the decision of grouting pump plunger motion speed, and the grouting pump plunger motion is fast, and the shield grouting POF is just big; The grouting pump plunger motion is slow, and the shield grouting POF is just little.
The speed of the cylinder barrel motion of driving oil cylinder 7 is to determine that by the flow of the pressure oil that flows to left front oil pipe 1 is big or small the flow of pressure oil is big, and the speed of cylinder barrel motion is just fast; The flow of pressure oil is little, and the speed of cylinder barrel motion is just slow.
The pressure oil that flows to oil pipe 1 is flowed out by electro-hydraulic proportional flow valve 15, and the model of electro-hydraulic proportional flow valve 15 is in this example: EDFHG-03-100.The size of its flow depends on the openings of sizes of electro-hydraulic proportional flow valve 15, and the pressure oil flow was just big when opening was big; Opening hour pressure oil flow is just little.
The openings of sizes of electro-hydraulic proportional flow valve 15 is to be controlled by 14 size of current of the proportion electro-magnet on the electro-hydraulic proportional flow valve 15, and proportion electro-magnet 14 electric currents are big, and the opening of valve 15 is just big; Proportion electro-magnet 14 electric currents are little, and the opening of valve 15 is just little.The size of proportion electro-magnet 14 electric currents is set up by automatical control system 13, and the size of this electric current also can be as required momentarily by the artificial adjusting of manual control system.
Claims (3)
1. shield tail grouting pump control system, it is characterized in that: a left side of being located at driving oil cylinder (7) two ends respectively is electrically connected with automatical control system (13) near switch (8) near the switch (6) and the right side, and automatical control system (13) is electrically connected with solenoid directional control valve (3) and electro-hydraulic proportional flow valve (15);
Electro-hydraulic proportional flow valve (15) is communicated with solenoid directional control valve (3) by left front oil pipe (1), and solenoid directional control valve (3) is communicated with the two ends of driving oil cylinder (7) by left back oil pipe (4) and right back oil pipe (10).
2. a kind of shield tail grouting pump control system according to claim 1 is characterized in that: described automatical control system is provided with the PLC control system in (13).
3. a kind of shield tail grouting pump control system according to claim 1 is characterized in that: also be provided with return tube (12) on the described solenoid directional control valve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202087721U CN201723393U (en) | 2010-06-01 | 2010-06-01 | Control system of injection pump of shield tail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202087721U CN201723393U (en) | 2010-06-01 | 2010-06-01 | Control system of injection pump of shield tail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201723393U true CN201723393U (en) | 2011-01-26 |
Family
ID=43491713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202087721U Expired - Lifetime CN201723393U (en) | 2010-06-01 | 2010-06-01 | Control system of injection pump of shield tail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201723393U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435254A (en) * | 2011-09-21 | 2012-05-02 | 上海隧道工程股份有限公司 | Shield grouting amount measurement method |
| CN110821178A (en) * | 2019-11-28 | 2020-02-21 | 黄志波 | Light steel structure reinforced delivery pump and use method thereof |
| CN113062886A (en) * | 2021-03-17 | 2021-07-02 | 中国铁建重工集团股份有限公司 | Electronic pressure flow composite control grouting hydraulic system and control method |
-
2010
- 2010-06-01 CN CN2010202087721U patent/CN201723393U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435254A (en) * | 2011-09-21 | 2012-05-02 | 上海隧道工程股份有限公司 | Shield grouting amount measurement method |
| CN110821178A (en) * | 2019-11-28 | 2020-02-21 | 黄志波 | Light steel structure reinforced delivery pump and use method thereof |
| CN113062886A (en) * | 2021-03-17 | 2021-07-02 | 中国铁建重工集团股份有限公司 | Electronic pressure flow composite control grouting hydraulic system and control method |
| CN113062886B (en) * | 2021-03-17 | 2024-03-01 | 中国铁建重工集团股份有限公司 | Electronic pressure and flow composite control grouting hydraulic system and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SAFECLEEN ENGINEERING MACHINERY CO., LTD. Free format text: FORMER NAME: BLACK WHIRLWIND ENGINEERING MACHINERY DEVELOPMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 443000 Dalian Road, Hubei, China, No. 8, No. Patentee after: Three river moral young worker journey Machinery Co., Ltd.s Address before: 443000 Dalian Road, Hubei, China, No. 8, No. Patentee before: Black Whirlwind Engineering Machinery Development Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110126 |