CN105317760A - Start delay warning device for coal mine down-hole mine vehicle - Google Patents
Start delay warning device for coal mine down-hole mine vehicle Download PDFInfo
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- CN105317760A CN105317760A CN201510808012.1A CN201510808012A CN105317760A CN 105317760 A CN105317760 A CN 105317760A CN 201510808012 A CN201510808012 A CN 201510808012A CN 105317760 A CN105317760 A CN 105317760A
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Abstract
Disclosed is a start delay warning device for a coal mine down-hole mine vehicle. The start delay warning device comprises a pilot oil circuit. The pilot oil circuit is provided with a pressure oil inlet and an oil outlet. A hydraulic operated directional valve, a sequence valve and an adjustable restrictive valve are installed on the pilot oil circuit between the oil outlet and the pressure oil inlet sequentially. A pressure oil inlet of the sequence valve is connected with a pressure oil branch I. A pressure oil inlet of the adjustable restrictive valve is connected with a pressure oil branch II. A delay sound-light warning device is arranged between the pressure oil branch I and the pressure oil branch II. The part, between the sequence valve and the adjustable restrictive valve, of the pilot oil circuit is provided with an energy accumulator. The start delay warning device can be applied to all coal mine down-hole hydraulic drive vehicles. The delay sound-light warning device is integrated into a vehicle braking system and a hydraulic pilot system, so that the vehicles are forced to conduct sound-light warning automatically before starting and be started in delay. The accidents of casualties surrounding the vehicles due to impatience driving can be effectively avoided, and the safety of the coal mine down-hole mine vehicle is greatly improved.
Description
Technical field
The present invention relates to a kind of underground coal mine vehicle alarm device, particularly a kind of underground coal mine mining vehicle start-up study warning device.
Background technique
Coal mine down-hole tunnel narrow space, dust are many, noise is large, rather dark, in addition the most boundary dimension of underground mine use vehicle is larger, and driver exists very large sight line blind area when vehicle launch and traveling, therefore often there is security incident when underground coal mine starts and travel in vehicle.Especially vehicle driver's failure to inspect, warning before startup, irritable driving easily causes the injures and deaths of vehicle-surroundings personnel, has a strong impact on the Security of mine vehicle in start-up course.
Summary of the invention
The technical problem to be solved in the present invention is for the deficiencies in the prior art, proposes one and avoids occurring traveling accident, can ensure the underground coal mine of underground coal mine vehicle safety mining vehicle start-up study warning device.
The technical problem to be solved in the present invention is achieved through the following technical solutions, a kind of underground coal mine mining vehicle start-up study warning device, comprise and start the walking variable displacement pump that the mining vehicle of underground coal mine travels and the guide oil loop controlling walking variable displacement pump discharge capacity, be characterized in: described guide oil loop is provided with the pressure oil import associated with parking and the oil outlet connect with walking variable displacement pump pilot control oil phase, guide oil loop between oil outlet and pressure oil import is provided with pilot operated directional control valve successively, sequence valve and adjustable restrictive valve, pressure oil branch road is connected with in the pressure oil outlet port of sequence valve
, be connected with pressure oil branch road in the pressure oil inlet of adjustable restrictive valve
, pressure oil branch road
with pressure oil branch road
between be provided with time delay acoustic-optic alarm, time delay acoustic-optic alarm opens flame-proof mine pressure switch and flame-proof mine voice audible-visual annunciator is composed in series, described control port and the pressure oil branch road often opening flame-proof mine pressure switch by normally closed flame-proof mine pressure switch, often
be connected, the control port of normally closed flame-proof mine pressure switch and pressure oil branch road
be connected, the guide oil loop between sequence valve and adjustable restrictive valve is provided with accumulator, when the pressure oil import associated with parking when guide oil loop has pressure, pressure is by pressure oil branch road
enter and often open flame-proof mine pressure switch, make it close, flame-proof mine voice audible-visual annunciator obtains electric, flame-proof mine voice audible-visual annunciator works, hydraulic oil passes through adjustable restrictive valve simultaneously, enter accumulator, sequence valve commutation when accumulator internal pressure reaches 20bar, pressure is by pressure oil branch road
enter normally closed flame-proof mine pressure switch, make it disconnect, the power-off of flame-proof mine voice audible-visual annunciator quits work, meanwhile, pressure oil enters the control oil pocket of pilot operated directional control valve, and pilot operated directional control valve commutates, guide oil is connected and is made walking variable displacement pump variable, and vehicle is normally started to walk, when the pressure oil inlet pressure associated with parking when guide oil loop disappears, pressure oil inside accumulator is by the rapid oil sump tank of one-way valve, pressure makes zero, sequence valve commutates, pressure oil in pilot operated directional control valve control chamber is through sequence valve oil sump tank, pilot operated directional control valve resets, and pilot control cuts off starting delay alarming device and restPoses.
The technical problem to be solved in the present invention can also be come to realize further by the following technical programs, also be provided with the guide oil branch road connected with pilot control at the oil outlet place in guide oil loop, guide oil branch road is provided with the control ball valve of manual ON pilot control when start-up study acoustic-optic alarm lost efficacy.
The technical problem to be solved in the present invention can also be come to realize further by the following technical programs, and guide oil branch road is provided with the pressure gauge of display pilot control oil pressure.
The technical problem to be solved in the present invention can also be come to realize further by the following technical programs, and sequence valve is also provided with the drain tap connected with fuel tank by drain line.
The technical problem to be solved in the present invention can also be come to realize further by the following technical programs, is provided with the sequence valve pressure measuring tie-in of testing sequence valve input pressure in the pressure oil inlet of sequence valve.
The technical problem to be solved in the present invention can also be come to realize further by the following technical programs, is provided with parking braking oil pressure measuring tie-in in the pressure oil inlet of flow regulating valve.
The technical problem to be solved in the present invention can also be come to realize further by the following technical programs, described adjustable restrictive valve is also parallel with one-way valve, the oil inlet end of one-way valve exports with the pressure oil of adjustable restrictive valve and is connected, and the oil outlet end of one-way valve is connected with the pressure oil import of adjustable restrictive valve.
Compared with prior art, the present invention can be applicable to all underground coal mine hydraulic drive vehicles, unify in hydraulic pilot system by pressure switch, voice audible-visual annunciator, accumulator etc. are integrated into vehicle braking system, vehicle is forced automatically to carry out acoustooptic alarm before activation, delayed startup, effectively can avoid vehicle driver's failure to inspect, warning before startup, irritable driving causes the accident of vehicle-surroundings casualties, substantially increase the Security of the mining vehicle of underground coal mine, there are very large promotion and application and be worth.
Accompanying drawing explanation
Fig. 1 is hydraulic schematic diagram of the present invention.
Embodiment
A kind of underground coal mine mining vehicle start-up study warning device, comprise and start the walking variable displacement pump that the mining vehicle of underground coal mine travels and the guide oil loop controlling walking variable displacement pump discharge capacity, described guide oil loop is provided with the pressure oil import associated with parking and the oil outlet connect with walking variable displacement pump pilot control oil phase, guide oil loop between oil outlet and pressure oil import is provided with successively pilot operated directional control valve 3, sequence valve 6 and adjustable restrictive valve 12, is connected with pressure oil branch road in the pressure oil outlet port of sequence valve 6
4, be connected with pressure oil branch road in the pressure oil inlet of adjustable restrictive valve 12
10, pressure oil branch road
10 with pressure oil branch road
time delay acoustic-optic alarm is provided with between 4, time delay acoustic-optic alarm opens flame-proof mine pressure switch 9 and flame-proof mine voice audible-visual annunciator 7 is composed in series, described control port and the pressure oil branch road often opening flame-proof mine pressure switch 9 by normally closed flame-proof mine pressure switch 5, often
be connected, the control port of normally closed flame-proof mine pressure switch 5 and pressure oil branch road
be connected, the guide oil loop between sequence valve and adjustable restrictive valve is provided with accumulator 8; When the pressure oil import associated with parking when guide oil loop has pressure, pressure is by pressure oil branch road
enter and often open flame-proof mine pressure switch, make it close, flame-proof mine voice audible-visual annunciator obtains electric, flame-proof mine voice audible-visual annunciator works, hydraulic oil passes through adjustable restrictive valve simultaneously, enter accumulator, sequence valve commutation when accumulator internal pressure reaches 20bar, pressure is by pressure oil branch road
enter normally closed flame-proof mine pressure switch, make it disconnect, the power-off of flame-proof mine voice audible-visual annunciator quits work, meanwhile, pressure oil enters the control oil pocket of pilot operated directional control valve, and pilot operated directional control valve commutates, guide oil is connected and is made walking variable displacement pump variable, and vehicle is normally started to walk; When the pressure oil inlet pressure associated with parking when guide oil loop disappears, pressure oil inside accumulator is by the rapid oil sump tank of one-way valve, pressure makes zero, sequence valve commutates, pressure oil in pilot operated directional control valve control chamber is through sequence valve oil sump tank, pilot operated directional control valve resets, and pilot control cuts off starting delay alarming device and restPoses.Its Main Function of the present invention is that the vehicle launch realizing vehicle is reported to the police and delayed startup, working principle is after vehicle brake off, delays time to control walking variable displacement pump guide fuel feeding, thus control the delayed startup of vehicle, in time delay process, control flame-proof mine voice audible-visual annunciator propaganda directed to communicate, the vehicle launch realizing vehicle is reported to the police and delayed startup function.
Also be provided with the guide oil branch road connected with pilot control at the oil outlet place in guide oil loop, guide oil branch road is provided with the control ball valve 2 of manual ON pilot control when start-up study acoustic-optic alarm lost efficacy.Guide oil branch road is provided with the pressure gauge 1 of display pilot control oil pressure.Pressure gauge 1 is for showing guide's oil pressure, and whether prompting driver guide oil circuit is connected.Sequence valve is also provided with the drain tap connected with fuel tank by drain line.Be provided with the sequence valve pressure measuring tie-in 14 of testing sequence valve input pressure in the pressure oil inlet of sequence valve, sequence valve pressure measuring tie-in 14 is for testing sequence valve inlet pressure.Be provided with parking braking oil pressure measuring tie-in 13 in the pressure oil inlet of flow regulating valve, parking braking oil pressure measuring tie-in 13 is for measuring parking system pressure.Described adjustable restrictive valve is also parallel with one-way valve 11, and the oil inlet end of one-way valve exports with the pressure oil of adjustable restrictive valve and is connected, and the oil outlet end of one-way valve 11 is connected with the pressure oil import of adjustable restrictive valve.For ensureing safety, underground coal mine vehicle compulsory adopts the braking of Fail safe type, i.e. spring braking, and hydraulic pressure is removed.That is when in figure, there is pressure oil at F place, vehicle parking is removed, and allows to start to travel.F place, without vehicle parking during pressure oil, cannot start.Meanwhile, vehicle is hydraulic drive vehicle, and the power that vehicle launch travels is provided by 2 walking variable displacement pumps, the guide oil loop controlling walking variable displacement pump discharge capacity is only had to have oil pressure, walking variable displacement pump variable, driver steps on the gas, and vehicle hydraulic running gear just can be vehicle and provides power.Vehicle just can normally be started to walk, the present invention utilizes Parking Brake pressure, the break-make in delays time to control hydraulic moving variable displacement pump guide oil loop realizes delayed startup, is controlled the start and stop of flame-proof mine voice audible-visual annunciator in time delay process by normally closed flame-proof mine pressure switch and Chang Kai flame-proof mine pressure switch simultaneously.Specific works principle is as follows: when parking braking system has pressure (when driver's take-off the brake handle prepares to start vehicle), pressure enters often opens flame-proof mine pressure switch, make it close, flame-proof mine voice audible-visual annunciator obtains electric, alarm flicker repeats propaganda directed to communicate " vehicle launch please notes " simultaneously.Hydraulic oil passes through adjustable restrictive valve simultaneously, enter accumulator, accumulator internal pressure rises gradually, the sequence valve commutation when pressure reaches 20bar, pressure oil enters normally closed flame-proof mine pressure switch while pilot operated directional control valve controls oil pocket makes it disconnect, the power-off of flame-proof mine voice audible-visual annunciator, stopping of propagandaing directed to communicate.Meanwhile, pressure oil enters rapidly pilot operated directional control valve and controls oil pocket, and pilot operated directional control valve commutates, and guide oil is connected, and hydraulic moving pump variable, driver steps on the gas, variable displacement pump pressure oil output, and vehicle just can normally be started to walk.Vehicle time delay and flame-proof mine voice audible-visual annunciator propaganda directed to communicate the time by adjustable restrictive valve and accumulator co-controlling, before flame-proof mine voice audible-visual annunciator is propagandaed directed to communicate and is stopped, even if driver unclamps parking brake, to step on the gas by force starting, because hydraulic moving variable displacement pump pilot control is in off state, vehicle still cannot be started to walk, only reach the delay time of setting, flame-proof mine voice audible-visual annunciator propaganda directed to communicate stop vehicle just allow starting, effectively prevent driver's failure to inspect, warning, irritable driving causes the problem of vehicle-surroundings casualties.When parking braking system distress resolves (i.e. driver's pull-up brake handle, during car brakeing), pressure oil inside accumulator is by the rapid oil sump tank of one-way valve, pressure makes zero, sequence valve commutates, pressure oil in pilot operated directional control valve control chamber is through sequence valve oil sump tank, and pilot operated directional control valve resets, and pilot control cuts off start-up study acoustic-optic alarm and restPoses.Controlling ball valve can manual unlocking when start-up study acoustic-optic alarm breaks down, and is connected by pilot control and ensures that vehicle is normally walked.
Claims (7)
1. a underground coal mine mining vehicle start-up study warning device, comprise and start the walking variable displacement pump that the mining vehicle of underground coal mine travels and the guide oil loop controlling walking variable displacement pump discharge capacity, it is characterized in that: described guide oil loop is provided with the pressure oil import associated with parking and the oil outlet connect with walking variable displacement pump pilot control oil phase, guide oil loop between oil outlet and pressure oil import is provided with pilot operated directional control valve, sequence valve and adjustable restrictive valve successively, is connected with pressure oil branch road in the pressure oil outlet port of sequence valve
, be connected with pressure oil branch road in the pressure oil inlet of adjustable restrictive valve
, pressure oil branch road
with pressure oil branch road
between be provided with time delay acoustic-optic alarm, time delay acoustic-optic alarm opens flame-proof mine pressure switch and flame-proof mine voice audible-visual annunciator is composed in series, described control port and the pressure oil branch road often opening flame-proof mine pressure switch by normally closed flame-proof mine pressure switch, often
be connected, the control port of normally closed flame-proof mine pressure switch and pressure oil branch road
be connected, the guide oil loop between sequence valve and adjustable restrictive valve is provided with accumulator;
When the pressure oil import associated with parking when guide oil loop has pressure, pressure is by pressure oil branch road
enter and often open flame-proof mine pressure switch, make it close, flame-proof mine voice audible-visual annunciator obtains electric, flame-proof mine voice audible-visual annunciator works, hydraulic oil passes through adjustable restrictive valve simultaneously, enter accumulator, sequence valve commutation when accumulator internal pressure reaches 20bar, pressure is by pressure oil branch road
enter normally closed flame-proof mine pressure switch, make it disconnect, the power-off of flame-proof mine voice audible-visual annunciator quits work, meanwhile, pressure oil enters the control oil pocket of pilot operated directional control valve, and pilot operated directional control valve commutates, guide oil is connected and is made walking variable displacement pump variable, and vehicle is normally started to walk; When the pressure oil inlet pressure associated with parking when guide oil loop disappears, pressure oil inside accumulator is by the rapid oil sump tank of one-way valve, pressure makes zero, sequence valve commutates, pressure oil in pilot operated directional control valve control chamber is through sequence valve oil sump tank, pilot operated directional control valve resets, and pilot control cuts off starting delay alarming device and restPoses.
2. underground coal mine according to claim 1 mining vehicle start-up study warning device, it is characterized in that: be also provided with the guide oil branch road connected with pilot control at the oil outlet place in guide oil loop, guide oil branch road is provided with the control ball valve of manual ON pilot control when start-up study acoustic-optic alarm lost efficacy.
3. underground coal mine according to claim 2 mining vehicle start-up study warning device, is characterized in that: the pressure gauge being provided with display pilot control oil pressure on guide oil branch road.
4. underground coal mine according to claim 1 mining vehicle start-up study warning device, be is characterized in that: on sequence valve, be also provided with the drain tap connected with fuel tank by drain line.
5. underground coal mine according to claim 1 mining vehicle start-up study warning device, is characterized in that: the sequence valve pressure measuring tie-in being provided with testing sequence valve input pressure in the pressure oil inlet of sequence valve.
6. underground coal mine according to claim 1 mining vehicle start-up study warning device, is characterized in that: be provided with parking braking oil pressure measuring tie-in in the pressure oil inlet of flow regulating valve.
7. underground coal mine according to claim 1 mining vehicle start-up study warning device, it is characterized in that: described adjustable restrictive valve is also parallel with one-way valve, the oil inlet end of one-way valve exports with the pressure oil of adjustable restrictive valve and is connected, and the oil outlet end of one-way valve is connected with the pressure oil import of adjustable restrictive valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510808012.1A CN105317760B (en) | 2015-11-20 | 2015-11-20 | Underground coal mine is mining vehicle start-up study warning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510808012.1A CN105317760B (en) | 2015-11-20 | 2015-11-20 | Underground coal mine is mining vehicle start-up study warning device |
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| CN105317760A true CN105317760A (en) | 2016-02-10 |
| CN105317760B CN105317760B (en) | 2017-12-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122155A (en) * | 2016-08-26 | 2016-11-16 | 徐工消防安全装备有限公司 | The balanced valve group that a kind of band opening time postpones |
| CN109707499A (en) * | 2018-12-06 | 2019-05-03 | 连云港天明装备有限公司 | A kind of mine vehicle engine water protective device |
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| US4119185A (en) * | 1977-04-04 | 1978-10-10 | The Falk Corporation | Marine propulsion control system with maneuvering brake |
| CN85103780A (en) * | 1985-05-08 | 1986-11-05 | 洛阳矿山机器厂 | Hydraulic delay two-stage brake hydraulic station |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106122155A (en) * | 2016-08-26 | 2016-11-16 | 徐工消防安全装备有限公司 | The balanced valve group that a kind of band opening time postpones |
| CN106122155B (en) * | 2016-08-26 | 2018-08-03 | 徐工消防安全装备有限公司 | A kind of balance valve group of band opening time delay |
| CN109707499A (en) * | 2018-12-06 | 2019-05-03 | 连云港天明装备有限公司 | A kind of mine vehicle engine water protective device |
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| Publication number | Publication date |
|---|---|
| CN105317760B (en) | 2017-12-05 |
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