CN204645137U - Electric hydraulic excavating machine control system - Google Patents
Electric hydraulic excavating machine control system Download PDFInfo
- Publication number
- CN204645137U CN204645137U CN201520104933.5U CN201520104933U CN204645137U CN 204645137 U CN204645137 U CN 204645137U CN 201520104933 U CN201520104933 U CN 201520104933U CN 204645137 U CN204645137 U CN 204645137U
- Authority
- CN
- China
- Prior art keywords
- current
- voltage
- transformer
- vacuum contactor
- pressure vacuum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a kind of electric hydraulic excavating machine control system, belong to motor machine control technology field, comprise front end transformer (1), junction box, collector ring, high-pressure electric control cabinet, high-tension motor (12), shaft coupling and hydraulic pump, distrbution network by high-voltage cable successively through front end transformer (1), junction box, collector ring and high-pressure electric control cabinet by electrical energy transfer to high-tension motor (12), high-tension motor (12) is connected with hydraulic pump driving by shaft coupling.Grid power is accessed hydraulic crawler excavator, drives hydraulic pump with high-tension motor, for machine provides power; It can save the use cost of machine greatly, and can realize no pollution, zero-emission.
Description
Technical field
The utility model relates to a kind of electric hydraulic excavating machine control system, belongs to motor machine control technology field.
Background technology
Dynamical system is the core component of hydraulic crawler excavator, and its performance is directly connected to performance and the use cost of hydraulic crawler excavator.Traditional hydraulic crawler excavator all adopts diesel engine as the power source of machine.Diesel engine possesses skills and necessary resources maturation as the hydraulic crawler excavator of power source, and machine transition is convenient, affects little feature by surrounding enviroment factor.And large hydraulic excavator is generally used in large-scale mine region, because diesel engine acc power is higher, the fuel consume in the unit interval is higher, needs to use special oil supply vehicle delivery fuel oil.Fuel consume and fuel oil transportation cost improve the use cost of machine virtually.
Its handling characteristics of large hydraulic excavator being applied in large-scale mine region is at same place longevity of service, infrequently transition.Meanwhile, mining area has electric power resource easily usually.If be that excavator provides the energy with electric power energy, the cost of use of unit interval inner machine can significantly reduce, and machine completely meaning can realize no pollution, zero-emission, more meets the trend of current energy-saving and emission-reduction.
Summary of the invention
For above-mentioned prior art Problems existing, the utility model provides a kind of electric hydraulic excavating machine control system, grid power is accessed hydraulic crawler excavator, drives hydraulic pump with high-tension motor, for machine provides power; It can save the use cost of machine greatly, and can realize no pollution, zero-emission.
To achieve these goals, the technical solution adopted in the utility model is: this electric hydraulic excavating machine control system, comprise front end transformer, junction box, collector ring, high-pressure electric control cabinet, high-tension motor, shaft coupling and hydraulic pump, distrbution network by high-voltage cable successively through front end transformer, junction box, collector ring and high-pressure electric control cabinet by electrical energy transfer to high-tension motor, high-tension motor is connected with hydraulic pump driving by shaft coupling.
Further, described high-pressure electric control cabinet comprises high voltage isolator, high-voltage and current-limitation fuse, potential transformer, detection device for phase sequence, comprehensive microcomputer protecting device, primary cut-out, high-voltage and current-limitation fuse, current transformer, high-pressure vacuum contactor KM1, thermal relay, voltage sensor, voltmeter, current sensor and ammeter, high voltage isolator is electrically connected with primary cut-out and high-voltage and current-limitation fuse respectively, high-voltage and current-limitation fuse is electrically connected with comprehensive microcomputer protecting device by potential transformer, detection device for phase sequence, voltage sensor and voltmeter are arranged on the circuit between potential transformer and comprehensive microcomputer protecting device, primary cut-out is electrically connected with high-voltage and current-limitation fuse and comprehensive microcomputer protecting device respectively, high-voltage and current-limitation fuse is electrically connected with current transformer, current transformer is electrically connected with comprehensive microcomputer protecting device, and thermal relay, current sensor and ammeter are arranged on the circuit between current transformer and comprehensive microcomputer protecting device, current transformer is by high-pressure vacuum contactor KM1 and high-voltage electric mechatronics.
Further, also comprise high-pressure vacuum contactor KM2 and current-limiting resistance, high-pressure vacuum contactor KM2 and current-limiting resistance are connected in parallel on the two ends of high-pressure vacuum contactor KM1 after connecting.
Further, also comprise the normally closed point of high-pressure vacuum contactor KM2, auto-transformer TA and high-pressure vacuum contactor KM1, the normally closed point of high-pressure vacuum contactor KM2, auto-transformer TA and high-pressure vacuum contactor KM1 is connected in parallel on the two ends of high-pressure vacuum contactor KM1 after connecting successively.
Further, also comprise high-tension lightning arrester, described high-tension lightning arrester is arranged on the circuit between high voltage isolator and primary cut-out.
Further, also comprise overvoltage protection, described overvoltage protection is arranged on the circuit between current transformer and comprehensive microcomputer protecting device.
Preferably, described shaft coupling is highly elastic shaft coupling.
Preferably, described hydraulic pump is plunger type variable capacity pump.
Compared with prior art, the utility model adopts high-tension motor to substitute high-power fuel engines, grid power is accessed hydraulic crawler excavator, drives hydraulic pump with high-tension motor, for machine provides power.It can save the use cost of machine greatly, and can realize no pollution, zero-emission.
Accompanying drawing explanation
Fig. 1 is system block diagram of the present utility model;
Fig. 2 is schematic diagram of the present utility model;
Fig. 3 is the direct starting principle figure of motor in the utility model;
Fig. 4 is that in the utility model, motor adopts crosstalk resistance or reactance reduced voltage starting schematic diagram;
Fig. 5 is that in the utility model, motor adopts auto-transformer starting principle figure.
In figure: 1, front end transformer, 2, high voltage isolator, 3, high-voltage and current-limitation fuse; 4, potential transformer, 5, detection device for phase sequence, 6, comprehensive microcomputer protecting device; 7, high-tension lightning arrester, 8, primary cut-out, 9, high-voltage and current-limitation fuse; 10, current transformer, 11, overvoltage protection, 12, high-tension motor; 13, thermal relay, 14, voltage sensor, 15, voltmeter; 16, current sensor, 17, ammeter.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, the utility model comprises front end transformer 1, junction box, collector ring, high-pressure electric control cabinet, high-tension motor 13, shaft coupling and hydraulic pump, distrbution network by high-voltage cable successively through front end transformer 1, junction box, collector ring and high-pressure electric control cabinet by electrical energy transfer to high-tension motor 12, high-tension motor 12 is connected with hydraulic pump driving by shaft coupling.
As shown in Figures 2 and 3, described high-pressure electric control cabinet comprises high voltage isolator 2, high-voltage and current-limitation fuse 3, potential transformer 4, detection device for phase sequence 5, comprehensive microcomputer protecting device 6, primary cut-out 8, high-voltage and current-limitation fuse 9, current transformer 10, high-pressure vacuum contactor KM1, thermal relay 13, voltage sensor 14, voltmeter 15, current sensor 16 and ammeter 17, high voltage isolator 2 is electrically connected with primary cut-out 8 and high-voltage and current-limitation fuse 3 respectively, high-voltage and current-limitation fuse 3 is electrically connected with comprehensive microcomputer protecting device 6 by potential transformer 4, detection device for phase sequence 5, voltage sensor 4 and voltmeter 15 are arranged on the circuit between potential transformer 4 and comprehensive microcomputer protecting device 6, primary cut-out 8 is electrically connected with high-voltage and current-limitation fuse 9 and comprehensive microcomputer protecting device 6 respectively, high-voltage and current-limitation fuse 9 is electrically connected with current transformer 10, current transformer 10 is electrically connected with comprehensive microcomputer protecting device 6, and thermal relay 13, current sensor 16 and ammeter 17 are arranged on the circuit between current transformer 10 and comprehensive microcomputer protecting device 6, current transformer 10 is electrically connected with high-tension motor 12 by high-pressure vacuum contactor KM1.
As shown in Figure 4, also comprise high-pressure vacuum contactor KM2 and current-limiting resistance, high-pressure vacuum contactor KM2 and current-limiting resistance are connected in parallel on the two ends of high-pressure vacuum contactor KM1 after connecting.This mode is by resistance or reactance reduced voltage starting high-tension motor 12, first controls high-pressure vacuum contactor KM2 and connects, and connects high-pressure vacuum contactor KM1 and disconnect high-pressure vacuum contactor KM2 after motor rotation.The mode starting current of reduced voltage starting is less, can reduce the impact to electrical network, but resistance or reactance or produce larger electric energy loss, and the volume of resistance or reactance is larger.
As shown in Figure 5, also comprise the normally closed point of high-pressure vacuum contactor KM2, auto-transformer TA and high-pressure vacuum contactor KM1, the normally closed point of high-pressure vacuum contactor KM2, auto-transformer TA and high-pressure vacuum contactor KM1 is connected in parallel on the two ends of high-pressure vacuum contactor KM1 after connecting successively.Adopt the start mode of auto-transformer, first control high-pressure vacuum contactor KM2 to connect, voltage accesses high-tension motor 12 after auto-transformer TA step-down, high-pressure vacuum contactor KM1 is connected after high-tension motor 12 operates, the simultaneously normally closed disconnection of high-pressure vacuum contactor KM1, then control high-pressure vacuum contactor KM2 and disconnect.The starting method of auto-transformer is started can be more mild, and electric energy loss is less, its volume relative resistance or reactance less, but cost is higher.
Improve as one of the present utility model, also comprise high-tension lightning arrester 7, described high-tension lightning arrester 7 is arranged on the circuit between high voltage isolator 2 and primary cut-out 8.Increase high-tension lightning arrester 7 to avoid because thunder and lightning is caused danger when thunderstorm weather operation.
Improve as another kind of the present utility model, also comprise overvoltage protection 11, described overvoltage protection 11 is arranged on the circuit between current transformer 10 and comprehensive microcomputer protecting device 6.The operation of overvoltage protection 11 pairs of systems is adopted to play better protective effect.
Further, described shaft coupling is highly elastic shaft coupling; Described hydraulic pump is plunger type variable capacity pump.
The start-up course of motor: line voltage is after front end transformer 1 transformation; by high voltage cable again behind junction box, collector ring access high-pressure electric control cabinet inside; the break-make of power supply is controlled by high voltage isolator 2; primary cut-out 8 is as short-circuit protection and remote on/off control device; the break-make of control system power supply; again through high-tension fuse 9, be linked into high-pressure vacuum contactor KM1.By can complete the starting of high-tension motor 12 to the control of high-pressure vacuum contactor KM1.Last start-up course can be selected direct Starting mode, reduced voltage starting mode according to on-site actual situations or adopt the start mode of auto-transformer.
Safety protection function realizes:
Overvoltage protection: by potential transformer 4 detection system voltage; voltmeter 15 shows system voltage; voltage transmission is given comprehensive microcomputer protecting device 6 by electrical quantity sensor 14, and when overtension, comprehensive microcomputer protecting device 6 controls primary cut-out 8 parting system power supply, realizes overvoltage protection.In superpotential moment or when having pulse surge, when primary cut-out 8 is also not operating, excess voltage can be shunted by overvoltage protection 11, realizes the protection to motor.
Overcurrent protection: by current transformer 10 detection system voltage; ammeter 17 shows system voltage; current delivery is given comprehensive microcomputer protecting device 6 by electrical quantity sensor 16, and when electric current is too high, comprehensive microcomputer protecting device 6 controls primary cut-out 8 parting system power supply, realizes overcurrent protection.
Phase fault is protected: when there is phase fault, phase current can raise, and high-voltage and current-limitation fuse 9 or high-voltage and current-limitation fuse 3 can fuse, and cut off the electricity supply.
Misphase open-phase protection: detect phase shortage or misphase by detection device for phase sequence 5, and transfer data to comprehensive microcomputer protecting device 6, comprehensive microcomputer protecting device 6 controls primary cut-out 8 parting system power supply.
Lightning protection: by high-tension lightning arrester 7, when being struck by lightning to electric current water conservancy diversion, avoids because thunderbolt damages element and personnel.
Claims (8)
1. an electric hydraulic excavating machine control system, it is characterized in that, comprise front end transformer (1), junction box, collector ring, high-pressure electric control cabinet, high-tension motor (12), shaft coupling and hydraulic pump, distrbution network by high-voltage cable successively through front end transformer (1), junction box, collector ring and high-pressure electric control cabinet by electrical energy transfer to high-tension motor (12), high-tension motor (12) is connected with hydraulic pump driving by shaft coupling.
2. a kind of electric hydraulic excavating machine control system according to claim 1, is characterized in that, described high-pressure electric control cabinet comprises high voltage isolator (2), high-voltage and current-limitation fuse (3), potential transformer (4), detection device for phase sequence (5), comprehensive microcomputer protecting device (6), primary cut-out (8), high-voltage and current-limitation fuse (9), current transformer (10), high-pressure vacuum contactor KM1, thermal relay (13), voltage sensor (14), voltmeter (15), current sensor (16) and ammeter (17), high voltage isolator (2) is electrically connected with primary cut-out (8) and high-voltage and current-limitation fuse (3) respectively, high-voltage and current-limitation fuse (3) is electrically connected with comprehensive microcomputer protecting device (6) by potential transformer (4), detection device for phase sequence (5), voltage sensor (4) and voltmeter (16) are arranged on the circuit between potential transformer (4) and comprehensive microcomputer protecting device (6), primary cut-out (8) is electrically connected with high-voltage and current-limitation fuse (9) and comprehensive microcomputer protecting device (6) respectively, high-voltage and current-limitation fuse (9) is electrically connected with current transformer (10), current transformer (10) is electrically connected with comprehensive microcomputer protecting device (6), and thermal relay (13), current sensor (16) and ammeter (17) are arranged on the circuit between current transformer (10) and comprehensive microcomputer protecting device (6), current transformer (10) is electrically connected with high-tension motor (12) by high-pressure vacuum contactor KM1.
3. a kind of electric hydraulic excavating machine control system according to claim 2, is characterized in that, also comprise high-pressure vacuum contactor KM2 and current-limiting resistance, and high-pressure vacuum contactor KM2 and current-limiting resistance are connected in parallel on the two ends of high-pressure vacuum contactor KM1 after connecting.
4. a kind of electric hydraulic excavating machine control system according to claim 2, it is characterized in that, also comprise the normally closed point of high-pressure vacuum contactor KM2, auto-transformer TA and high-pressure vacuum contactor KM1, the normally closed point of high-pressure vacuum contactor KM2, auto-transformer TA and high-pressure vacuum contactor KM1 is connected in parallel on the two ends of high-pressure vacuum contactor KM1 after connecting successively.
5. a kind of electric hydraulic excavating machine control system according to claim 2, it is characterized in that, also comprise high-tension lightning arrester (7), described high-tension lightning arrester (7) is arranged on the circuit between high voltage isolator (2) and primary cut-out (8).
6. a kind of electric hydraulic excavating machine control system according to claim 2; it is characterized in that; also comprise overvoltage protection (11), described overvoltage protection (11) is arranged on the circuit between current transformer (10) and comprehensive microcomputer protecting device (6).
7. a kind of electric hydraulic excavating machine control system according to claim 1, is characterized in that, described shaft coupling is highly elastic shaft coupling.
8. a kind of electric hydraulic excavating machine control system according to claim 1, is characterized in that, described hydraulic pump is plunger type variable capacity pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520104933.5U CN204645137U (en) | 2015-02-12 | 2015-02-12 | Electric hydraulic excavating machine control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520104933.5U CN204645137U (en) | 2015-02-12 | 2015-02-12 | Electric hydraulic excavating machine control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204645137U true CN204645137U (en) | 2015-09-16 |
Family
ID=54097895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520104933.5U Withdrawn - After Issue CN204645137U (en) | 2015-02-12 | 2015-02-12 | Electric hydraulic excavating machine control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204645137U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104674877A (en) * | 2015-02-12 | 2015-06-03 | 徐州徐工挖掘机械有限公司 | Electric hydraulic excavator control system |
-
2015
- 2015-02-12 CN CN201520104933.5U patent/CN204645137U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104674877A (en) * | 2015-02-12 | 2015-06-03 | 徐州徐工挖掘机械有限公司 | Electric hydraulic excavator control system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205131686U (en) | A prevent striking sparks wiring circuit and unmanned aerial vehicle for unmanned aerial vehicle power battery | |
| CN104674877A (en) | Electric hydraulic excavator control system | |
| CN202488012U (en) | Combined transformer for photovoltaic power generation | |
| CN204645137U (en) | Electric hydraulic excavating machine control system | |
| CN202488013U (en) | External combined-type transformer for wind power generation | |
| CN202737787U (en) | Solar charging type intelligent cross interconnection box | |
| CN204515046U (en) | A kind of mining electromagnetic starter Integrated Protection System test unit | |
| CN2884645Y (en) | General multifunction electricity saver | |
| CN206623698U (en) | Intelligent AC charging pile | |
| CN206640274U (en) | A kind of super-pressure ice-melt optimizes system | |
| CN202076965U (en) | Novel lightning protection solar power supply system | |
| CN204012695U (en) | Single-phase intelligent ammeter multifunctional lightning protection device | |
| CN204230918U (en) | Group wells dynamic compensation is soft opens Time-sharing control device | |
| CN211017777U (en) | Arc and harmonic elimination device | |
| CN202798000U (en) | Static var generator (SVG) high voltage static reactive power compensation system | |
| CN209119804U (en) | Electric furnace overvoltage energy absorption protective device | |
| CN105332806B (en) | A kind of intelligent energy-saving controller | |
| CN205863673U (en) | The energy-conservation Intelligent control cabinet of photovoltaic generating system | |
| CN204012295U (en) | The compact-type low-voltage comprehensive distribution box that a kind of one side opens the door | |
| CN204964618U (en) | Three -phase electric energy meter takes accuse controller | |
| CN205791458U (en) | A kind of Vehicular charging rifle of protection automatically of charging | |
| CN204590154U (en) | Electric hydraulic excavating machine high-power high voltage motor safe operation protection system | |
| CN204271634U (en) | A kind of large through-flow module lightning protection device structure | |
| CN211377582U (en) | Surge protection structure of alternating current charging gun | |
| CN202111467U (en) | Multi-polar low voltage circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150916 Effective date of abandoning: 20171121 |
|
| AV01 | Patent right actively abandoned |