CN204138254U - Flame-proof mine hydraulic wireline winch hydraulic efficiency pressure system - Google Patents
Flame-proof mine hydraulic wireline winch hydraulic efficiency pressure system Download PDFInfo
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- CN204138254U CN204138254U CN201420421357.2U CN201420421357U CN204138254U CN 204138254 U CN204138254 U CN 204138254U CN 201420421357 U CN201420421357 U CN 201420421357U CN 204138254 U CN204138254 U CN 204138254U
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Abstract
The utility model discloses a kind of flame-proof mine hydraulic wireline winch hydraulic efficiency pressure system, mine explosion-suppression electrical motor (2) is connected with geared oil pump (3), the oil inlet of geared oil pump (3) is connected with fuel tank, the oil outlet of geared oil pump (3) is connected with the oil inlet of working connection solenoid directional control valve (5), the left oil circuit of the oil outlet of this working connection solenoid directional control valve (5) is connected with one end of motor and one end of balance cock (9) respectively, wherein balance cock (9) is connected with the one end of the oil circuit solenoid directional control valve (6) that declutches, the other end of this oil circuit solenoid directional control valve (6) that declutches is connected with drg oil cylinder (10), drg oil cylinder (10) is connected with fuel tank, the right oil circuit of the oil outlet of working connection solenoid directional control valve (5) is connected with the other end of motor by balance cock (9), the lower oil circuit of the oil outlet of working connection solenoid directional control valve (5) is connected with fuel tank.The utility model can all-electricly operate, and dynamic regulates tightening force, and high oil temperature can self-actuating brake.
Description
Technical field
The utility model relates to flame-proof mine hydraulic wireline winch hydraulic efficiency pressure system.
Background technology
Flame-proof mine hydraulic wireline winch is a kind of occurred in recent years novel and by the belt conveyer for coal mine take-up device promoted rapidly, hydraulic wireline winch system comprises hydraulic power unit and tension winch two parts.The effect of hydraulic power unit is: checking or unclamping, by drg oil cylinder (declutch oil cylinder) index drum, two, controlled the size of winch tightening force by the output torque controlling motor.
Conventional hydraulic power unit adopts manual mode, and each change-over valve of Non-follow control, switches different oil circuits, realize the control to brake oil cylinder and motor respectively.Its shortcoming is: one, need the hand change over valve of close-table operation manually, degree of automation is low, and labour intensity is large, can not remote operation.Two, can not the pressure of governor motor automatically, the size of tightening force by the manometric pressure size of manual observation, the pulling force of manual regulation winch.Three, without high oil temperature self-actuating brake defencive function.
Summary of the invention
For above-mentioned prior art Problems existing, the utility model provides a kind of flame-proof mine hydraulic wireline winch hydraulic efficiency pressure system, can reach following technical requirements: all-electric operation, meet mine explosion-suppression requirement; After system pressure size sets, tightening force can be regulated automatically; There is high oil temperature self-actuating brake defencive function.
To achieve these goals, the utility model provides a kind of flame-proof mine hydraulic wireline winch hydraulic efficiency pressure system, comprise mine explosion-suppression electrical motor, geared oil pump, working connection solenoid directional control valve, declutch oil circuit solenoid directional control valve, described mine explosion-suppression electrical motor is connected with geared oil pump, the oil inlet of described geared oil pump is connected with fuel tank, the oil outlet of described geared oil pump is connected with the oil inlet of working connection solenoid directional control valve, the left oil circuit of the oil outlet of this working connection solenoid directional control valve is connected with one end of motor M and one end of balance cock respectively, wherein balance cock is connected with the one end of the oil circuit solenoid directional control valve that declutches, the other end of this oil circuit solenoid directional control valve that declutches is connected with drg oil cylinder, described drg oil cylinder is connected with fuel tank by the oil circuit proportional pressure control valve that declutches, the right oil circuit of the oil outlet of described working connection solenoid directional control valve is connected by the other end of balance cock with motor M, the lower oil circuit of the oil outlet of described working connection solenoid directional control valve is connected with fuel tank.
Further, the oil outlet of described geared oil pump is connected with fuel tank by working connection proportional pressure control valve.
Further, described working connection solenoid directional control valve is the two electric control electromagnetic change-over valve of row's formula in flame-proof mine 3-position 4-way, the described oil circuit solenoid directional control valve that declutches is flame-proof mine two-position three way list electric control electromagnetic change-over valve, described in the oil circuit proportional pressure control valve that declutches be flame-proof mine big orifice proportional pressure control valve.
Further, described mine explosion-suppression electrical motor is flame-proof mine three phase asynchronous motor.
Further, described working connection proportional pressure control valve is flame-proof mine big orifice proportional pressure control valve.
Further, the oil inlet of described geared oil pump is connected with fuel tank by screen filter.
The utility model, by the utilization of working connection solenoid directional control valve, declutch oil circuit solenoid directional control valve and brake circuit proportional pressure control valve, enables hydraulic wireline winch hydraulic efficiency pressure system realize all-electric operation, when in system during high oil temperature, can have self-actuating brake defencive function; Can when system pressure sets the rotating speed of automatic governor motor M, then automatically regulate the tightening force size of winch.
Accompanying drawing explanation
Fig. 1 is hydraulic schematic diagram of the present utility model.
In figure: 1, screen filter, 2, mine explosion-suppression electrical motor, 3, geared oil pump, 4, compression indicator, 5, working connection solenoid directional control valve, 6, declutch oil circuit solenoid directional control valve, 7, declutch oil circuit proportional pressure control valve, 8, working connection proportional pressure control valve, 9, balance cock, 10, drg oil cylinder.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
For sake of convenience, alleged in literary composition " on " D score " left side " " right side " consistent with the direction, upper and lower, left and right of accompanying drawing itself, but restriction effect is not played to structure of the present utility model.
As shown in Figure 1, a kind of flame-proof mine hydraulic wireline winch hydraulic efficiency pressure system, comprise mine explosion-suppression electrical motor 2, geared oil pump 3, working connection solenoid directional control valve 5, declutch oil circuit solenoid directional control valve 6, described mine explosion-suppression electrical motor 2 is connected with geared oil pump 3, the oil inlet of described geared oil pump 3 is connected with fuel tank, the oil outlet of described geared oil pump 3 is connected with the oil inlet of working connection solenoid directional control valve 5, the left oil circuit of the oil outlet of this working connection solenoid directional control valve 5 is connected with one end of motor M and one end of balance cock 9 respectively, wherein balance cock 9 is connected with the one end of the oil circuit solenoid directional control valve 6 that declutches, the other end of this oil circuit solenoid directional control valve 6 that declutches is connected with drg oil cylinder 10, described drg oil cylinder 10 is connected with fuel tank by the oil circuit proportional pressure control valve 7 that declutches, the right oil circuit of the oil outlet of described working connection solenoid directional control valve 5 is connected with the other end of motor M by balance cock 9, the lower oil circuit of the oil outlet of described working connection solenoid directional control valve 5 is connected with fuel tank.
In order to the output torque of step-less adjustment motor M, i.e. the tightening force of dynamic adjustments reel, can make the oil outlet of described geared oil pump 3 be connected with fuel tank by working connection proportional pressure control valve 8.
Be applicable to make this system using in colliery, described working connection solenoid directional control valve 5 is for arranging the two electric control electromagnetic change-over valve of formula in flame-proof mine 3-position 4-way, the described oil circuit solenoid directional control valve 6 of declutching for flame-proof mine two-position three way list electric control electromagnetic change-over valve, described in declutch oil circuit proportional pressure control valve 7 for flame-proof mine big orifice proportional pressure control valve.
In order to make motor running performance better, described mine explosion-suppression electrical motor 2 is flame-proof mine three phase asynchronous motor.
In order to make the flow of proportional pressure control valve meet system requirements, described working connection proportional pressure control valve 8 is flame-proof mine big orifice proportional pressure control valve.
Clean in order to the oil that ensures to export in fuel tank, the oil inlet of described geared oil pump 3 is connected with fuel tank by screen filter 1.
Working process: mine explosion-suppression electrical motor 2 is energized, driven gear oil pump 3 works, when the right coil of working connection solenoid directional control valve 5 or left coil energising, geared oil pump 3 and motor M oil circuit are connected, geared oil pump 3 pressure starts to raise, when the left coil energising of working connection solenoid directional control valve 5, fluid is passed through rotating forward oil circuit and the balance cock 9 of the left position supply motor M of working connection solenoid directional control valve 5 by geared oil pump 3, now motor M rotates forward, oil is supplied the oil circuit solenoid directional control valve 6 that declutches by the shuttle valve motion simultaneously in balance cock 9, when the coil electricity of the oil circuit solenoid directional control valve 6 that declutches, the declutch right position of oil circuit solenoid directional control valve 6 is connected, drg oil cylinder 10 oil-feed, promote drg oil cylinder 10 to move, thus brake is unclamped, when the right coil electricity of working connection solenoid directional control valve 5, fluid is passed through reversion oil circuit and the balance cock 9 of the right position supply motor M of working connection solenoid directional control valve 5 by geared oil pump 3, motor M reversion oil circuit is connected, motor M starts reversion, oil is supplied the oil circuit solenoid directional control valve 6 that declutches by the shuttle valve motion simultaneously in balance cock 9, declutch the coil electricity of oil circuit solenoid directional control valve 6 time, the declutch right position of oil circuit solenoid directional control valve 6 is connected, and then supply drg oil cylinder 10, thus drg declutches.Declutch the coil blackout of oil circuit solenoid directional control valve 6 time, under the action of the spring, the left position of the oil circuit solenoid directional control valve 6 that declutches is connected, and drg oil cylinder 10 is drained the oil, and promotes drg oil cylinder 10 and moves, brake is stopped tightly.When the right coil of working connection solenoid directional control valve 5 and the equal power-off of left coil, the valve core of working connection solenoid directional control valve 5 is positioned at meta, its valve is in oil extraction state, and the oil that geared oil pump 3 enters working connection solenoid directional control valve 5 can flow directly into fuel tank by working connection solenoid directional control valve 5, thus carries out off-load.
The pressure size of working connection is regulated by working connection proportional pressure control valve 8, and the pressure size of brake circuit is regulated by brake circuit proportional pressure control valve 7, and equal passing ratio amplification carrys out real-time regulation system pressure.When the pressure that is excessive or that cause because of high oil temperature of the pressure of oil pressure in working connection is excessive, the proportion electro-magnet in working connection proportional pressure control valve 8 produces thrust, and the part oil that geared oil pump 3 is exported flow in fuel tank and reduces pressure to working connection; When the pressure pressure that is excessive or that cause because of high oil temperature of oil pressure is excessive in because of brake circuit, driven by proportion electro-magnet in brake circuit proportional pressure control valve 7, electromagnet produces thrust, spool action in brake circuit proportional pressure control valve 7, drg oil cylinder 10 is connected with the oil circuit of fuel tank drain the oil, thus reduce drg oil cylinder 10 pressure, drg oil cylinder 10 is moved, and then make brake stop tightly, drg oil cylinder 10 pressure so just can be made to be unlikely to too high.Big orifice proportional pressure control valve can be adopted, drg oil cylinder 10 can be made to drain the oil fast, guarantee timely brake.
For the ease of the pressure condition of manual observation working connection, at the Nodes setting pressure table 4 of geared oil pump 3 with working connection proportional pressure control valve 8, the safety of this system can be guaranteed so further.
Claims (6)
1. a flame-proof mine hydraulic wireline winch hydraulic efficiency pressure system, comprise mine explosion-suppression electrical motor (2), geared oil pump (3), described mine explosion-suppression electrical motor (2) is connected with geared oil pump (3), the oil inlet of described geared oil pump (3) is connected with fuel tank, it is characterized in that, also comprise working connection solenoid directional control valve (5), declutch oil circuit solenoid directional control valve (6), the oil outlet of described geared oil pump (3) is connected with the oil inlet of working connection solenoid directional control valve (5), the left oil circuit of the oil outlet of this working connection solenoid directional control valve (5) is connected with one end of motor M and one end of balance cock (9) respectively, wherein balance cock (9) is connected with the one end of the oil circuit solenoid directional control valve (6) that declutches, the other end of this oil circuit solenoid directional control valve (6) that declutches is connected with drg oil cylinder (10), described drg oil cylinder (10) is connected with fuel tank by the oil circuit proportional pressure control valve (7) that declutches, the right oil circuit of the oil outlet of described working connection solenoid directional control valve (5) is connected with the other end of motor M by balance cock (9), the lower oil circuit of the oil outlet of described working connection solenoid directional control valve (5) is connected with fuel tank.
2. a kind of flame-proof mine hydraulic wireline winch hydraulic efficiency pressure system according to claim 1, is characterized in that, the oil outlet of described geared oil pump (3) is connected with fuel tank by working connection proportional pressure control valve (8).
3. a kind of flame-proof mine hydraulic wireline winch hydraulic efficiency pressure system according to claim 1, it is characterized in that, described working connection solenoid directional control valve (5) is for arranging the two electric control electromagnetic change-over valve of formula in flame-proof mine 3-position 4-way, the described oil circuit solenoid directional control valve (6) that declutches for flame-proof mine two-position three way list electric control electromagnetic change-over valve, described in declutch oil circuit proportional pressure control valve (7) for flame-proof mine big orifice proportional pressure control valve.
4. a kind of flame-proof mine hydraulic wireline winch hydraulic efficiency pressure system according to claim 1, is characterized in that, described mine explosion-suppression electrical motor (2) is flame-proof mine three phase asynchronous motor.
5. a kind of flame-proof mine hydraulic wireline winch hydraulic efficiency pressure system according to claim 2, is characterized in that, described working connection proportional pressure control valve (8) is flame-proof mine big orifice proportional pressure control valve.
6. a kind of flame-proof mine hydraulic wireline winch hydraulic efficiency pressure system according to claim arbitrary in claim 1 to 5, is characterized in that, the oil inlet of described geared oil pump (3) is connected with fuel tank by screen filter (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420421357.2U CN204138254U (en) | 2014-07-29 | 2014-07-29 | Flame-proof mine hydraulic wireline winch hydraulic efficiency pressure system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420421357.2U CN204138254U (en) | 2014-07-29 | 2014-07-29 | Flame-proof mine hydraulic wireline winch hydraulic efficiency pressure system |
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| CN204138254U true CN204138254U (en) | 2015-02-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104192749A (en) * | 2014-07-29 | 2014-12-10 | 徐州五洋科技股份有限公司 | Mining explosion-proof type hydraulic winch hydraulic system |
| CN107152423A (en) * | 2017-06-17 | 2017-09-12 | 无锡德林防务装备股份有限公司 | Closed type hydraulic system with balanced valve |
| CN110817719A (en) * | 2019-12-08 | 2020-02-21 | 怀化学院 | Main winch balance valve group |
-
2014
- 2014-07-29 CN CN201420421357.2U patent/CN204138254U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104192749A (en) * | 2014-07-29 | 2014-12-10 | 徐州五洋科技股份有限公司 | Mining explosion-proof type hydraulic winch hydraulic system |
| CN107152423A (en) * | 2017-06-17 | 2017-09-12 | 无锡德林防务装备股份有限公司 | Closed type hydraulic system with balanced valve |
| CN107152423B (en) * | 2017-06-17 | 2019-03-26 | 无锡德林防务装备股份有限公司 | Closed type hydraulic system with balanced valve |
| CN110817719A (en) * | 2019-12-08 | 2020-02-21 | 怀化学院 | Main winch balance valve group |
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