CN202558393U - Cable coiling hydraulic system - Google Patents
Cable coiling hydraulic system Download PDFInfo
- Publication number
- CN202558393U CN202558393U CN2012201554256U CN201220155425U CN202558393U CN 202558393 U CN202558393 U CN 202558393U CN 2012201554256 U CN2012201554256 U CN 2012201554256U CN 201220155425 U CN201220155425 U CN 201220155425U CN 202558393 U CN202558393 U CN 202558393U
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- pressure
- cable rolling
- valve
- oil
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Abstract
The utility model discloses a cable coiling hydraulic system, which comprises a cable coiling/uncoiling device installed at a scraper rear chassis, an oil tank and a variable volume pump, wherein the variable volume pump is connected with the cable coiling/uncoiling device via a cable coiling cartridge inserted valve, the oil suction port, control oil port and pressure oil port of the variable volume pump are connected with the oil tank, the load sensitive control oil port and pressure oil port of the cable coiling cartridge inserted valve via high-pressure hoses, respectively, the oil tank working oil port of the cable coiling cartridge inserted valve is connected with the oil tank via a high-pressure hose, the cable coiling motor working oil port and return oil port of the cable coiling cartridge inserted valve are connected with the oil inlet and oil outlet of the cable coiling motor of the cable coiling/uncoiling device via high-pressure hoses, respectively, and a cut-off valve is arranged between the cable coiling motor working oil port and the return oil port of the cable coiling cartridge inserted valve. The cable coiling hydraulic system provided by the utility model simplifies the hydraulic pipeline of the system, reduces the leakage of the hydraulic oil, improves the reliability of the system, prolongs the service life of the cable, reduces the oil temperature of the system, and reduces the energy consumption.
Description
Technical field
The utility model relates to a kind of electric LHD, relates in particular to a kind of cable rolling hydraulic efficiency pressure system of electric LHD twisted and released of the cable.
Background technology
Electric LHD is the topmost vehicle equipment of underground mine.It is a power with the asynchronous motor, the threephase cable power supply that pulls, two way.Cable one end is fixed, and the other end is wrapped on the cable reel installation of scoper afer bay.Cable reel installation generally is made up of reel, cable roller, quantitative oil pump, cable rolling motor, solenoid directional control valve, by pass valve and fuel tank.Reel pedestal is fixed on the scoper afer bay; Reel is installed on the reel pedestal; Cable roller is installed on the reel pedestal, and the cable rolling motor is fixed on the reel, and the oil inlet and outlet of cable rolling motor is connected with electromagnetic valve, by pass valve through oil pipe; Electromagnetic valve is connected with quantitative oil pump through oil pipe, and quantitative oil pump is connected with fuel tank through oil pipe.
The working process of cable reel installation is: cable gets into reel through cable roller, and when shovel car was retreated, quantitative oil pump is oil suction from fuel tank; Pressure oil is given cable rolling motor fuel feeding through solenoid directional control valve, and the cable rolling reel driving motor is drawn over to one's side, and cable tightens up; The oil pressure of cable rolling motor raises, and reaches the pressure that by pass valve is set, the by pass valve overflow; The cable rolling motor stops, and reel stops operating, and cable rolling finishes.When shovel car advances, the cable tensioning, reel is the counter-rotating of drive motor under the effect of cable stretch, the charged switching-over of solenoid directional control valve, the cable rolling motor gets into the oil pump mode of operation, and the pressure oil of cable rolling motor and quantitative oil pump output is through another by pass valve overflow.
The cable rolling hydraulic efficiency pressure system of this cable reel installation, not only hydraulic tubing is complicated, and hydraulic oil leaks easily; And solenoid directional control valve is in the moist working environment with many dirt in down-hole, adds that the vibration of scoper is big, causes the solenoid directional control valve functional reliability not high, and damage causes cable low service life easily; Simultaneously, the excess flow loss of this cable rolling hydraulic efficiency pressure system is bigger, and the oil temperature is higher, and energy consumption is bigger.
The utility model content
The purpose of the utility model is to provide a kind of can effectively simplify hydraulic tubing, reduce hydraulic fluid leak; Can improve simultaneously reliability of system operation, prolong cable service life; Reduce excess flow loss; Reduce the system oil temperature, reduce the cable rolling hydraulic efficiency pressure system of the electric LHD twisted and released of the cable of energy consumption.
For realizing above-mentioned purpose, the technical scheme that the utility model is taked is:
A kind of cable rolling hydraulic efficiency pressure system comprises the cable reel installation, fuel tank and the controllable capacity pump that are installed in the scoper afer bay, and said controllable capacity pump is connected with cable reel installation through the cable rolling inserted valve; The oil suction of said controllable capacity pump, control port and pressure hydraulic fluid port are connected through high pressure hose respectively with the pressure hydraulic fluid port with the load-sensitive control port of said fuel tank, said cable rolling inserted valve; The fuel tank actuator port of said cable rolling inserted valve is connected through high pressure hose with said fuel tank; The cable rolling motor operations hydraulic fluid port of said cable rolling inserted valve is connected through high pressure hose respectively with oil outlet with the oil inlet port of return opening with the cable rolling motor of said cable reel installation; Be provided with shutoff valve between the cable rolling motor operations hydraulic fluid port of said cable rolling inserted valve and the return opening.
Said cable reel installation comprises cable rolling motor, reel and the guide wheel that is oppositely arranged, and cable is wrapped on the said reel.
When said cable rolling hydraulic efficiency pressure system detected in debugging, first pressure tap of said cable rolling inserted valve, second pressure tap, the 3rd pressure tap and the 4th pressure tap were connected through the pressure measurement flexible pipe with compression indicator respectively.
The cable rolling hydraulic efficiency pressure system that the utility model provides; Owing to adopted cable rolling inserted valve efficient, that concentrate, simplified the hydraulic tubing of whole hydraulic efficiency pressure system greatly, reduced the leakage of hydraulic oil; Improved the reliability of hydraulic efficiency pressure system, increase the service life that has prolonged cable.Simultaneously, reduce the excess flow loss of total system, reduced the system oil temperature, reduced energy consumption.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure: 1-cable rolling inserted valve, 2-check valve, 3-two-bit triplet pilot operated directional control valve, 4-damping hole; The 5-by pass valve, 6-pilot overflow valve, 7-remote pressure regulating valve, 8-choked flow check valve; The 9-shutoff valve, 10-controllable capacity pump, 12-cable rolling motor, 13-reel; The 18-guide wheel, 19-cable, 22-fuel tank, first pressure tap of 23-cable rolling inserted valve; Second pressure tap of 24-cable rolling inserted valve, the 3rd pressure tap of 25-cable rolling inserted valve, the 4th pressure tap of 26-cable rolling inserted valve, the load-sensitive control port of LS-cable rolling inserted valve; The pressure hydraulic fluid port of N-cable rolling inserted valve, the fuel tank actuator port of L-cable rolling inserted valve, the cable rolling motor operations hydraulic fluid port of M-cable rolling inserted valve, the return opening of T-cable rolling inserted valve.
The specific embodiment
Below in conjunction with specific embodiment and accompanying drawing thereof, the utility model is done further to specify, but the embodiment of the utility model is not limited thereto.
As shown in Figure 1, a kind of cable rolling hydraulic efficiency pressure system comprises the cable reel installation, fuel tank 22 and the controllable capacity pump 10 that are installed in the scoper afer bay.Cable reel installation comprises cable rolling motor 12, reel 13 and a pair of guide wheel 18 that is oppositely arranged, and cable 19 1 ends are wrapped on the reel 13, and the other end of cable 19 is received on the 1000V power controling box through plug.Controllable capacity pump 10 is connected with cable reel installation through cable rolling inserted valve 1.The oil suction inlet of controllable capacity pump 10, control port Ls and pressure hydraulic fluid port outlet are connected through high pressure hose respectively with pressure hydraulic fluid port N with the load-sensitive control port LS of fuel tank 22, cable rolling inserted valve 1; The fuel tank actuator port L of cable rolling inserted valve 1 and fuel tank 22 are connected through high pressure hose; The cable rolling motor operations hydraulic fluid port M of cable rolling inserted valve 1 is connected through high pressure hose respectively with oil outlet C with the oil inlet port B of the cable rolling motor 12 of cable reel installation with oil return inlet T; Between the cable rolling motor operations hydraulic fluid port M of cable rolling inserted valve 1 and the oil return inlet T shutoff valve 9 is installed, is connected with high-pressure rubber pipe through tee connection between them.First pressure tap 23 of cable rolling inserted valve 1, second pressure tap 24, the 3rd pressure tap 25 and the 4th pressure tap 26 are connected through the pressure measurement flexible pipe with compression indicator respectively, are convenient to the pressure of cable rolling hydraulic efficiency pressure system checking system when debugging detects.
The applicant just " cable rolling plug-in mounting hydraulic valve " has applied for utility model patent on the same day.
A kind of cable rolling plug-in mounting hydraulic valve; Comprise by pass valve 5 and pilot overflow valve 6; By pass valve 5, pilot overflow valve 6 are installed on the cable rolling hydraulic valve body 1; Check valve 2 also is installed on the cable rolling hydraulic valve body 1, and check valve 2 is connected with choked flow check valve 8 reverse parallel connections, and check valve 2 is connected in parallel with pilot overflow valve 6, two-bit triplet pilot operated directional control valve 3; Remote pressure regulating valve 7 is connected in series with pilot overflow valve 6, and two-bit triplet pilot operated directional control valve 3, damping hole 4 are connected in series with by pass valve 5.Also be provided with load-sensitive control port LS, pressure hydraulic fluid port N, oil return inlet T, fuel tank actuator port L and cable rolling motor operations hydraulic fluid port M on the cable rolling hydraulic valve body 1.Load-sensitive control port LS is connected with by pass valve 5, damping hole 4 through the oilhole in the cable rolling hydraulic valve body 1; Pressure hydraulic fluid port N is connected with pilot overflow valve 6, check valve 2, two-bit triplet pilot operated directional control valve 3, choked flow check valve 8 through the oilhole in the cable rolling hydraulic valve body 1; Oil return inlet T is connected with two-bit triplet pilot operated directional control valve 3, by pass valve 5 through the oilhole in the cable rolling hydraulic valve body 1; Fuel tank actuator port L is connected with pilot overflow valve 6 through the oilhole in the cable rolling hydraulic valve body 1, and cable rolling motor operations hydraulic fluid port M is connected with check valve 2, two-bit triplet pilot operated directional control valve 3, choked flow check valve 8 through the oilhole in the cable rolling hydraulic valve body 1.
After the oil outlet O of two-bit triplet pilot operated directional control valve 3 oil outlet A and remote pressure regulating valve 7 was connected through the oilhole in the valve body, through the oilhole of damping hole 4, external tapping was the load-sensitive control port LS of cable rolling inserted valve 1.The P mouth of the oil inlet of check valve 2, two-bit triplet pilot operated directional control valve 3 and spring side control hydraulic fluid port a, the oil outlet of choked flow check valve 8, the oil inlet P of pilot overflow valve 6 are connected through the oilhole in the valve body, and the oilhole external tapping is the pressure hydraulic fluid port N of cable rolling inserted valve 1.The external tapping of the oil outlet O of pilot overflow valve 6 is the fuel tank actuator port L of cable rolling inserted valve 1.The no spring observing and controlling system hydraulic fluid port b of the oil outlet of check valve 2, two-bit triplet pilot operated directional control valve 3, the oil inlet of choked flow check valve 8 connect through the oilhole in the valve body, and the oilhole external tapping is the cable rolling motor operations hydraulic fluid port M of cable rolling inserted valve 1.The O mouth of two-bit triplet pilot operated directional control valve 3 is connected through the oilhole in the valve body with the oil outlet O of by pass valve 5, and the oilhole external tapping is the oil return inlet T of the cable rolling inserted valve of cable rolling inserted valve 1.The Long-distance Control K mouth of pilot overflow valve 6, the oil inlet P of remote pressure regulating valve 7 connect through the oilhole in the valve body.The oil outlet of the oil inlet P of by pass valve 5 and damping hole 4 is connected through the oilhole in the valve body.
When the electric LHD cable rolling; The pressure oil of controllable capacity pump 10 output gets into cable rolling motor 12 by the pressure hydraulic fluid port N of the cable rolling inserted valve 1 cable rolling motor operations hydraulic fluid port M through check valve 2, cable rolling inserted valve 1, and cable rolling motor 12 drives also volume cable 19 of reels 13 rotations, when cable 19 is rolled to built on stilts; Tension force increases; The load rise of cable rolling motor 12, cable rolling hydraulic system pressure raise, the control port Ls that P mouth and the damping hole 4 of pressure oil through two-bit triplet pilot operated directional control valve 3 feeds back to controllable capacity pump 10; When pressure reaches the setting value of controllable capacity pump 10; Controllable capacity pump 10 capacity reductiones, the flow of output reduces, and makes the speed of cable drum 13 folding and unfolding cables 19 identical with the speed that electric LHD goes.The constant tension of cable 19.When pressure reaches the settling pressure of by pass valve 5, by pass valve 5 off-loads, system pressure reduces, and cable rolling motor 12 speed reduce, and the speed of cable drum 13 descends, and cable rolling speed descends and closes until by pass valve 5.
When the electric LHD cable laying, cable drum 13 drives 12 counter-rotatings of cable rolling motor under the tension force of cable 19, and cable rolling motor 12 gets into oil pump state; Cable rolling motor 12 and 10 while of controllable capacity pump fuel feeding; The no spring side control hydraulic fluid port pressure of two-bit triplet pilot operated directional control valve 3 raises, 3 switching-overs of two-bit triplet pilot operated directional control valve, and the control oil of controllable capacity pump 10 is through two-bit triplet pilot operated directional control valve 3 oil sump tanks; The discharge capacity of controllable capacity pump 10 is reduced to the minimum value of setting, and cable 19 keeps certain force of strain.When the electric LHD acceleration, tension force increases, and hydraulic system pressure raises, when reaching the pressure of precursor overflow valve 6 setting, and precursor overflow valve 6 releases.In addition, along with the folding and unfolding of cable 19 on reel 13, twine the vary in diameter of cable 19 on the reel 13; Hydraulic system pressure changes; Pressure feedback changes the delivery rate of controllable capacity pump 10 to controllable capacity pump 10, makes the folding and unfolding speed of cable identical with the moving velocity of electric LHD.
Also be provided with first pressure tap 23, second pressure tap 24, the 3rd pressure tap 25 and the 4th pressure tap 26 on the cable rolling hydraulic valve body 1.First pressure tap 23 communicates with pressure hydraulic fluid port N through the oilhole in the cable rolling hydraulic valve body 1; Second pressure tap 24 is communicated with two-bit triplet pilot operated directional control valve 3, remote pressure regulating valve 7, damping hole 4 through the oilhole in the cable rolling hydraulic valve body 1; The 3rd pressure tap 25 is connected through the oilhole in the cable rolling hydraulic valve body 1 with check valve 2, two-bit triplet pilot operated directional control valve 3, check valve 8; The 4th pressure tap 26 is threaded on the load-sensitive control port LS mouth through three-way pipe.
For guaranteeing the normal operation of the cable rolling hydraulic efficiency pressure system that the utility model provides, carry out pressure detection to cable rolling inserted valve 1.First pressure tap 23 through cable rolling inserted valve 1, second pressure tap 24, the 3rd pressure tap 25 and the 4th pressure tap 26 detected pressures, the pressure control of cable rolling inserted valve 1 is accomplished at test cell.Concrete operations are following:
1, simulation cable rolling operating mode: the pressure hydraulic fluid port that the pressure hydraulic fluid port N of cable rolling inserted valve is connected the test cell pump through high-pressure rubber pipe; The cable rolling motor operations hydraulic fluid port M of cable rolling inserted valve blocks with screw plug, and the fuel tank actuator port L of the oil return inlet T of cable rolling inserted valve, cable rolling inserted valve connects the test cell fuel tank.First pressure tap 23, second pressure tap 24, the 3rd pressure tap 25 are connected compression indicator through the pressure measurement flexible pipe respectively with the 4th pressure tap 26, with the set screw of hexagonal key wrench adjustment by pass valve 5, all tighten set screw, and pressure is adjusted to peak; With the set screw of hexagonal key wrench adjustment by pass valve 6, all unscrew set screw, pressure is adjusted to minimum.Starting characteristics test platform pump, pressure to the 140～150bar scope of slowly regulating by pass valve 6 reads data through pressure tap 23 bonded assembly compression indicators.Owing to there is the pressure reduction of check valve 2 to exist, pressure tap 25 bonded assembly pressure gauge readings a little less than pressure tap 23 bonded assembly pressure gauge reading 0.5bar about.The manometric reading of observation pressure tap 26 bonded assemblys, the pressure of regulating by pass valve 5 is to 120bar.Because the pressure reduction of damping hole 4 causes pressure tap 24 bonded assembly pressure gauge readings than the high 20bar of pressure tap 26 bonded assembly pressure gauge readings.If the reading of pressure tap 24 is not 20bar, just need rebuilding to change damping hole 4.
2, simulation cable laying operating mode; The cable rolling motor operations hydraulic fluid port M of cable rolling inserted valve connects the pressure hydraulic fluid port of test cell pump through high-pressure rubber pipe; The pressure hydraulic fluid port N of cable rolling inserted valve blocks with screw plug, and the fuel tank actuator port L of the oil return inlet T of cable rolling inserted valve, cable rolling inserted valve connects the test cell fuel tank.Pressure tap 23～26 connects compression indicator through the pressure measurement flexible pipe respectively.With the set screw of hexagonal key wrench adjustment by pass valve 7, all unscrew set screw, pressure is adjusted to the minimal pressure value.Starting characteristics test platform pump, the pressure of slowly regulating by pass valve 7 read data to 80bar through pressure tap 25 bonded assembly compression indicators.Owing to there is the pressure reduction of choked flow check valve 8 to exist; Pressure tap 23 bonded assembly pressure gauge readings a little less than pressure tap 25 bonded assembly pressure gauge reading 0.7bar about; Observation pressure tap 26 bonded assembly pressure gauge readings should be 0bar, and the reading of pressure tap 24 bonded assembly compression indicators should be 0bar.
Above-described only is the preferred embodiment of the utility model, does not limit to the utility model.Should be understood that for the person of ordinary skill of the art, under the teachings that the utility model provided, can also make other equivalent modifications and improvement, all can realize the purpose of the utility model, all should be regarded as the protection domain of the utility model.
Claims (3)
1. a cable rolling hydraulic efficiency pressure system comprises the cable reel installation, fuel tank (22) and the controllable capacity pump (10) that are installed in the scoper afer bay, it is characterized in that said controllable capacity pump (10) is connected with cable reel installation through cable rolling inserted valve (1); The oil suction (inlet) of said controllable capacity pump (10), control port (Ls) and pressure hydraulic fluid port (outlet) are connected through high pressure hose respectively with pressure hydraulic fluid port (N) with the load-sensitive control port (LS) of said fuel tank (22), said cable rolling inserted valve (1); The fuel tank actuator port (L) of said cable rolling inserted valve (1) is connected through high pressure hose with said fuel tank (22); The cable rolling motor operations hydraulic fluid port (M) of said cable rolling inserted valve (1) is connected through high pressure hose respectively with oil outlet (C) with the oil inlet port (B) of the cable rolling motor (12) of said cable reel installation with return opening (T); Be provided with shutoff valve (9) between the cable rolling motor operations hydraulic fluid port (M) of said cable rolling inserted valve (1) and the return opening (T).
2. according to the said a kind of cable rolling hydraulic efficiency pressure system of claim 1, it is characterized in that said cable reel installation comprises cable rolling motor (12), reel (13) and the guide wheel (18) that is oppositely arranged, cable (19) is wrapped on the said reel (13).
3. according to the said a kind of cable rolling hydraulic efficiency pressure system of claim 1; It is characterized in that; When said cable rolling hydraulic efficiency pressure system detected in debugging, first pressure tap (23) of said cable rolling inserted valve (1), second pressure tap (24), the 3rd pressure tap (25) and the 4th pressure tap (26) were connected through the pressure measurement flexible pipe with compression indicator respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201554256U CN202558393U (en) | 2012-04-13 | 2012-04-13 | Cable coiling hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201554256U CN202558393U (en) | 2012-04-13 | 2012-04-13 | Cable coiling hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202558393U true CN202558393U (en) | 2012-11-28 |
Family
ID=47208077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201554256U Expired - Fee Related CN202558393U (en) | 2012-04-13 | 2012-04-13 | Cable coiling hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202558393U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107522034A (en) * | 2016-06-22 | 2017-12-29 | 南京梅山冶金发展有限公司 | Electric LHD coil cable control device and control method |
| CN108002142A (en) * | 2017-12-20 | 2018-05-08 | 广东省输变电工程有限公司 | A kind of integrated driving and the high-tension cable of automatic braking unfolding device |
-
2012
- 2012-04-13 CN CN2012201554256U patent/CN202558393U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107522034A (en) * | 2016-06-22 | 2017-12-29 | 南京梅山冶金发展有限公司 | Electric LHD coil cable control device and control method |
| CN107522034B (en) * | 2016-06-22 | 2019-08-16 | 南京梅山冶金发展有限公司 | Electric LHD coil cable control device and control method |
| CN108002142A (en) * | 2017-12-20 | 2018-05-08 | 广东省输变电工程有限公司 | A kind of integrated driving and the high-tension cable of automatic braking unfolding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20150413 |
|
| EXPY | Termination of patent right or utility model |