CN203086386U - Novel start control device for hydraulic oil pump of shielding machine - Google Patents
Novel start control device for hydraulic oil pump of shielding machine Download PDFInfo
- Publication number
- CN203086386U CN203086386U CN 201320123280 CN201320123280U CN203086386U CN 203086386 U CN203086386 U CN 203086386U CN 201320123280 CN201320123280 CN 201320123280 CN 201320123280 U CN201320123280 U CN 201320123280U CN 203086386 U CN203086386 U CN 203086386U
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- contactor
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- plc
- oil pump
- hydraulic oil
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Abstract
The utility model discloses a novel start control device for a hydraulic oil pump of a shielding machine. The novel start control device comprises a PLC (Programmable Logic Controller) control circuit module and a main circuit module for driving a motor of the hydraulic oil pump of the shielding machine. PLC redundant control is adopted instead of current relay-contactor control for starting the hydraulic oil pump of the shielding machine, so that a very good effect is achieved, the control circuit is simplified, and the size of the control device is reduced; a redundant signal is input into a PLC for performing redundant control, so that the oil pump motor is prevented from starting and running abnormally, the failure rate is reduced, reliable running of a system is improved, and the maintenance workload is reduced greatly; and meanwhile, the outage rate is lowered, and the construction efficiency is increased.
Description
Technical field
The utility model relates to machinery equipment start-up control device, especially shield machine hydraulic oil pump start-up control device.
Background technology
Shield machine is the complete construction equipment of the large-scale high-tech of a kind of quick underground excavation.Drive motor majority in the shield machine is an alternating current motor, because alternating current motor is responsive to the fluctuation of supply voltage, so for capacity more greatly, frequent starting and the lighter shield machine hydraulic oil pump motor of load often do not adopt Y-Δ reduced-voltage starting.Yet existing shield machine hydraulic oil pump motor reduced-voltage starting, mostly adopt the relay-contactor control system, this control mode wiring complexity, starting component is many, the contact is many, easily break down, this has increased trouble not only for the Operation and maintenance personnel, has also influenced the further raising of shield machine construction efficient.
The utility model content
In order to overcome above-mentioned the deficiencies in the prior art, the utility model provides a kind of simple, reliable shield machine hydraulic oil pump start-up control device.
The technical scheme that the utility model adopted is: the novel start-up control device of this shield machine hydraulic oil pump, comprise the main circuit of PLC control circuit and driving shield machine hydraulic oil pump motor, main circuit comprises knife switch QS, fuse FU, thermal relay FR, A.C. contactor KM1, A.C. contactor KM2, A.C. contactor KM3, motor M; The PLC control circuit comprises A.C. contactor KM1, A.C. contactor KM2, A.C. contactor KM3, thermal relay FR, start button SB2, stop button SB1 and PLC controller; Described PLC controller is provided with interface I0.0, I0.l, I0.2, Q0.0, Q0.l, Q0.2, I0.3, I0.4, I0.5, public port and power interface, the power interface of controller PLC is connected with the alternating current 220V external power supply, thermal relay FR, stop button SB1, start button SB2, contactor KM1 assists normally open contact, contactor KM2 assists normally open contact, with an end of the auxiliary normally open contact of contactor KM3 respectively with the interface I0.0 of controller PLC, interface I0.1, interface I0.2, interface I0.3, interface I0.4 is connected with interface I0.5, thermal relay FR, stop button SB1, start button SB2, contactor KM1 assists normally open contact, contactor KM2 assists normally open contact, be set to and the terminal of controller PLC+L(+24V) be connected with the other end of the auxiliary normally open contact of contactor KM3.One end of A.C. contactor KM1 coil, A.C. contactor KM2 coil, A.C. contactor KM3 coil is connected with interface Q0.2 with interface Q0.0, the interface Q0.l of PLC respectively; The other end of A.C. contactor KM2 coil is connected with the KM3 normally closed interlock, the other end of A.C. contactor KM3 coil is connected with the KM2 normally closed interlock, the other end with the KM1 coil is connected to fuse FU1 again, behind the alternating current 220V external power supply, is connected to the output public terminal 1L of PLC in the series connection.
The beneficial effects of the utility model are: the utility model replaces existing relay-contactor control shield machine hydraulic oil pump to start with a kind of PLC Redundant Control; can reach good effect; not only simplified control circuit; dwindled the volume of control device; and increase redundant signals input PLC controller carries out Redundant Control; prevent unusual starting of Oil pump electrical machinery and operation better; reduced failure rate; improved the operational reliability of system; maintenance load is significantly reduced; reduced outage rate simultaneously; improved PLC that efficiency of construction is used and adopted modern large scale integrated circuit technology, adopted strict production technology manufacturing, internal circuit has been taked advanced Anti-Jamming Technique; the reliability height, antijamming capability is strong.Adopt the PLC action, signal transmission time is short, and speed is fast; Timer aspect master unit parts PLC precision height, timing range is wide, and the time is easy to adjust.
Description of drawings
Fig. 1 is a schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
Accompanying drawing is an embodiment of the present utility model, specify present embodiment in conjunction with the accompanying drawings, include knife switch QS, fuse FU, fuse FU1, fuse FU2, thermal relay FR, A.C. contactor KM1, A.C. contactor KM2, A.C. contactor KM3, motor M, start button SB2, stop button SB1 and PLC controller; External three phase mains is successively with after knife switch QS, fuse FU, contactor KM1 normally open contact and thermal relay FR connect, connect with binding post U1, V1 and the W1 of motor M, after the interface U between contactor KM1 and the thermal relay FR, interface V and interface W are set to series contactor KM2 normally open contact, connect with binding post U2, V2 and the W2 of motor M; Three binding posts of contactor KM3 normally open contact one end connect with lead, and the other end of contactor KM3 normally open contact connects with binding post U2, V2 and the W2 of motor M.
The PLC controller is provided with interface I0.0, I0.l, I0.2, Q0.0, Q0.l, Q0.2, I0.3, I0.4, I0.5, public port and power interface, the power interface of controller PLC is connected with the alternating current 220V external power supply, thermal relay FR, stop button SB1, start button SB2, contactor KM1 assists normally open contact, contactor KM2 assists normally open contact, with an end of the auxiliary normally open contact of contactor KM3 respectively with the interface I0.0 of controller PLC, interface I0.1, interface I0.2, interface I0.3, interface I0.4 is connected with interface I0.5, thermal relay FR, stop button SB1, start button SB2, contactor KM1 assists normally open contact, contactor KM2 assists normally open contact, be set to and the terminal of controller PLC+L(+24V) be connected with the other end of the auxiliary normally open contact of contactor KM3.One end of A.C. contactor KM1 coil, A.C. contactor KM2 coil, A.C. contactor KM3 coil is connected with interface Q0.2 with interface Q0.0, the interface Q0.l of PLC respectively; The other end of A.C. contactor KM2 coil is connected with the KM3 normally closed interlock, the other end of A.C. contactor KM3 coil is connected with the KM2 normally closed interlock, the other end with the KM1 coil is connected to fuse FU1 again, behind the alternating current 220V external power supply, is connected to the output public terminal 1L of PLC in the series connection.
In the present embodiment, the model of fuse QF is RL1-15, and knife switch QS model is HK2-3, and the model of contactor KM is CJ10-10, and the model of thermal relay FR is JR0-20/3, and the model of controller PLC is CPU 226XM.
Though the utility model illustrates and describes by the reference preferred embodiment,, those skilled in the art should understand, and in the scope of claims, can do the various variation on form and the details.
Claims (3)
1. novel start-up control device of shield machine hydraulic oil pump, comprise the main circuit of PLC control circuit and driving shield machine hydraulic oil pump motor, it is characterized in that: described main circuit comprises knife switch QS, fuse FU, thermal relay FR, A.C. contactor KM1, A.C. contactor KM2, A.C. contactor KM3, motor M; Described PLC control circuit comprises A.C. contactor KM1, A.C. contactor KM2, A.C. contactor KM3, thermal relay FR, start button SB2, stop button SB1 and PLC controller.
2. the novel start-up control device of shield machine hydraulic oil pump according to claim 1 is characterized in that: described PLC controller is provided with interface I0.0, I0.l, I0.2, I0.3, I0.4, I0.5, Q0.0, Q0.l, Q0.2, public port and power interface; The power interface of described PLC controller is connected with the alternating current 220V external power supply, thermal relay FR, stop button SB1, start button SB2, contactor KM1 assists normally open contact, contactor KM2 assists normally open contact, with an end of the auxiliary normally open contact of contactor KM3 respectively with the interface I0.0 of controller PLC, interface I0.1, interface I0.2, interface I0.3, interface I0.4 is connected with interface I0.5, thermal relay FR, stop button SB1, start button SB2, contactor KM1 assists normally open contact, contactor KM2 assists normally open contact, be set to be connected with the other end of the auxiliary normally open contact of contactor KM3 with the terminal L+ of controller PLC.
3. the novel start-up control device of shield machine hydraulic oil pump according to claim 1 is characterized in that: an end of described A.C. contactor KM1 coil, A.C. contactor KM2 coil, A.C. contactor KM3 coil is connected with interface Q0.2 with interface Q0.0, the interface Q0.l of PLC respectively; The other end of A.C. contactor KM2 coil is connected with the KM3 normally closed interlock, the other end of A.C. contactor KM3 coil is connected with the KM2 normally closed interlock, the other end with the KM1 coil is connected to fuse FU1 again, behind the alternating current 220V external power supply, be connected to the output public terminal 1L of PLC controller in the series connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320123280 CN203086386U (en) | 2013-03-19 | 2013-03-19 | Novel start control device for hydraulic oil pump of shielding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320123280 CN203086386U (en) | 2013-03-19 | 2013-03-19 | Novel start control device for hydraulic oil pump of shielding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203086386U true CN203086386U (en) | 2013-07-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320123280 Expired - Fee Related CN203086386U (en) | 2013-03-19 | 2013-03-19 | Novel start control device for hydraulic oil pump of shielding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203086386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977865A (en) * | 2015-06-23 | 2015-10-14 | 上海中远川崎重工钢结构有限公司 | Control circuit of large-scale steel member rectification apparatus |
-
2013
- 2013-03-19 CN CN 201320123280 patent/CN203086386U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977865A (en) * | 2015-06-23 | 2015-10-14 | 上海中远川崎重工钢结构有限公司 | Control circuit of large-scale steel member rectification apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20140319 |