CN104595256B - Novel energy accumulator automatic unloading device of coal mine underground explosion-proof vehicle - Google Patents
Novel energy accumulator automatic unloading device of coal mine underground explosion-proof vehicle Download PDFInfo
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- CN104595256B CN104595256B CN201410848310.9A CN201410848310A CN104595256B CN 104595256 B CN104595256 B CN 104595256B CN 201410848310 A CN201410848310 A CN 201410848310A CN 104595256 B CN104595256 B CN 104595256B
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- Prior art keywords
- valve
- energy accumulator
- accumulator
- valve element
- coal mine
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/40—Constructional details of accumulators not otherwise provided for
- F15B2201/405—Housings
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Safety Valves (AREA)
Abstract
The invention belongs to the technical field of hydraulic unloading of a coal mine underground explosion-proof vehicle, particularly relates to a novel energy accumulator automatic unloading device of the coal mine underground explosion-proof vehicle, and aims at solving the problem that safety production accidents are easily caused by an under-pressure energy accumulator of an existing coal mine underground explosion-proof vehicle. The novel energy accumulator automatic unloading device comprises an oil tank, a working pump, a liquid filling valve, a hydraulically controlled reversing valve and an energy accumulator which are connected in sequence, wherein the hydraulically controlled reversing valve is further communicated with engine oil and the oil tank; an outlet of the energy accumulator is connected with a pressure gauge on a cab instrument panel. With the adoption of the novel energy accumulator automatic unloading device, the accidents caused by the fact that the energy accumulator is under pressure when a worker repairs the vehicle can be effectively prevented; high-pressure oil in the energy accumulator is automatically unloaded back into the oil tank (with the zero pressure) as long as the vehicle is parked and shuts down, so that the personal safety of the repairing worker is ensured; guarantees are provided for safe repairing of the current coal mine underground vehicle, and automatic unloading of the energy accumulator on the explosion-proof vehicle can be realized.
Description
Technical field
The invention belongs to the technical field of underground coal mine explosion-proof vehicle hydraulic unloading is and in particular to a kind of underground coal mine is explosion-proof
Vehicle new accumulator automatic relief arrangement.
Background technology
Each main coal mining state of the world all compares accreditation to the many advantages of auxiliary trackless transport mode at present.Accumulator, be
Critical elements in auxiliary trackless transport automobile hydraulic system, are brakes or steering provides pressure oil-source, make vehicle excellent
First brake and turn to, thus the safety of support vehicles.
Because accumulator is pressure vessel, country has been classified as special equipment, and producer must have special equipment manufacturing license
Could processing.Use the volume of accumulator less on heavy vehicle, but pressure is very high, can reach 15～17mpa, make accumulator
Become the container of quite dangerous.Easily because of carelessness during dismounting accumulator with pressure during workman's maintenance, high-voltage oil liquid sprays, accumulator
On connector also can project at a high speed therewith, effect is no less than out the bullet of thorax, easily causes personal injury, cause keep the safety in production
Accident.
Content of the invention
The present invention easily causes asking of industrial accident to solve existing underground coal mine explosion-proof vehicle accumulator with pressure
A kind of topic, there is provided the new accumulator automatic relief arrangement of underground coal mine explosion-proof vehicle.
The present invention adopts the following technical scheme that realization:
A kind of new accumulator automatic relief arrangement of underground coal mine explosion-proof vehicle, including the fuel tank being sequentially connected, working barrel,
Replenishing valve, pilot operated directional control valve and accumulator, pilot operated directional control valve also connects with engine motor oil and fuel tank, and accumulator outlet is even
Connect the pressure gauge on driver's cabin instrumental panel.
Described pilot operated directional control valve includes valve body, valve element, cover plate and spring, valve body has cavity and installs valve element, valve body
Bottom is installed makes the airtight cover plate of cavity, valve element bottom connecting spring one end, spring other end connecting cover plate, valve element circumferentially side
Have cannelure upwards, cannelure has through hole to valve element bottom, body top is opened control mouth c and connected with engine motor oil, together
When connect with valve cavity；Spill port a2 is opened in valve body side, and spill port a2 one end is connected with fuel tank, the ring on the other end and valve element
Shape groove connects, and on valve body, the relative axis symmetric position of spill port a2 has off-load hydraulic fluid port b, off-load hydraulic fluid port b one end and accumulator 4
Connection, the other end are connected with the cannelure on valve element, the bottom faces of the control mouth on valve element top annular groove area s1 and valve body
The ratio of long-pending s2 is 3:1, and valve element top is provided with annular convex shoulder.
The setting of valve element bottom is raised to be used for connecting spring, and cover plate top is also provided with projection and is used for connecting spring, and two parts are convex
Play equal diameters.
The particular/special requirement that the present invention starts according to the heavy explosion-proof vehicle gas of underground mine use, logical using activate switch
Disconnected, as long as realizing the commutation of valve element it is ensured that flame-out stop, the pressure oil liquid of accumulator automatically returns to fuel tank, and energy storage pressure is
Zero-pressure.The present invention use Hydraulic Elements, open car with pressure after spring force just can be overcome so that valve element is commutated as accumulator topping up it is ensured that
The reliability of this device.
The present invention can the work of automatic discrimination electromotor or flameout state, control the filling of accumulator, tapping it is ensured that hoolivan
After switch-off, accumulator being capable of releasing pressure automatically.Test accumulator outlet pressure is connected with the instrumental panel of driver's cabin
Pressure gauge, can observe the pressure of accumulator at any time, when preventing vehicle maintenance maintenance, accident occurs because accumulator is with pressure.
In addition, stable engine oil pressure just can be set up after vehicle start-up, to accumulator topping up, it is to avoid electromotor band carries and starts.
The present invention can effectively prevent workman in maintenance vehicle, the contingency occurring because accumulator is with pressure, as long as
Vehicle parking stops working, and the high-voltage oil liquid in accumulator can automatically unload oil sump tank (pressure be zero-pressure) it is ensured that the people of service worker
Body safety, the vehicle safety maintenance for current underground coal mine provides guarantee, it is possible to achieve on explosion-proof vehicle, accumulator unloads automatically
Lotus.Discussion on Auxiliary Trackless Transport in Coal Mine has a extensive future at present, the demand of downhole anti-explosion vehicle is quickly increased, current domestic demand
Amount about every year at 200～300 about, this device often covers 30,000 yuan of price, the gross output value up to 600～9,000,000 yuan, every profit
Moisten 10,000 yuan of calculating, 200～3,000,000 yuan can be produced a profit, the development and application of the present invention can be for improving during workman's maintenance vehicle
Safety, reduces the generation of contingency.Strong guarantee will be provided for the safety in production of enterprise.
Brief description
Fig. 1 is schematic diagram of the present invention,
Fig. 2 is pilot operated directional control valve schematic diagram,
Fig. 3 is principle of the invention figure,
In figure: 1- working barrel, 2- replenishing valve, 3- pilot operated directional control valve, 4- accumulator, 5- connects engine motor oil, and 6- welcomes the emperor and sails
Chamber pressure table, 3.1- valve body, 3.2- valve element, 3.3- spring, 3.4- cover plate.
Specific embodiment
In conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
Underground coal mine explosion-proof vehicle new accumulator automatic relief arrangement, including the fuel tank being sequentially connected, working barrel 1, fills
Liquid valve 2, pilot operated directional control valve 3 and accumulator 4.
As shown in Fig. 2 pilot operated directional control valve includes valve body 3.1, valve element 3.2, cover plate 3.4 and spring 3.3, on valve body 3.1
Have cavity and valve element 3.2 is installed, valve body 3.1 bottom is installed and made the airtight cover plate of cavity 3.4, valve element 3.2 bottom connecting spring 3.3
One end, spring 3.3 other end connecting cover plate 3.4, valve element 3.2 has cannelure on along the circumferential direction, cannelure is to valve element bottom
Have through hole, valve body 3.1 top is opened control mouth c and connected with engine motor oil, connected with valve cavity simultaneously；Valve body side is opened back
Oilhole a2, spill port a2 one end is connected with fuel tank, the other end is connected with the cannelure on valve element, and on valve body, spill port a2's is relative
Axisymmetrical position has off-load hydraulic fluid port b, off-load hydraulic fluid port b one end is connected with accumulator 4, the cannelure on the other end and valve element even
Logical, the ratio of valve element topside area and valve element bottom area is 3:1, and valve element top is provided with annular convex shoulder.Valve element 3.2 bottom sets
Put projection and be used for connecting spring 3.3, cover plate 3.4 top is also provided with projection and is used for connecting spring 3.3, two parts projection diameter phase
Deng.
Engine oil pressure minima because of downhole anti-explosion vehicle motor only has 0.7bar.The present invention is by valve element top annular groove
The ratio of the bottom area s2 of the control mouth on area s1 and valve body is 3:1, the design increases annular compared with common valve element
Convex shoulder, improves the response speed of valve element.Area ratio according to control mouth selects corresponding spring (only need to overcome valve core movement
Resistance) it is ensured that liquid controlled reversing valve core can commutate under the control pressure of 0.7bar completely, cannelure increases and changes simultaneously
To the flow of valve it is ensured that the pressure oil in accumulator after flame-out pressure release can return to fuel tank rapidly.
Practice on explosion-proof vehicle for the automatic relief arrangement as shown in figure 3, pilot operated directional control valve also and engine motor oil
And fuel tank connects, accumulator 4 outlet connects the pressure gauge on bridge instrumentation disk, and driver and attendant can be by driving
The actual pressure that the pressure gauge sailing connection accumulator outlet pressure on the instrumental panel of room is observed in accumulator at any time is it is ensured that safeguard people
The safety of member.
When electromotor is in flameout state, pilot operated directional control valve a2, b mouth is communicated by the cannelure on valve element, accumulator
In fluid fuel tank, accumulator pressure release are leaked back into by cannelure.Until setting up stable engine oil pressure after engine start,
Pressure oil is acted on valve element by control mouth c of body top, promotes valve element commutation, and a2, b mouth of pilot operated directional control valve disconnects,
By p2, a1 mouth of replenishing valve to accumulator topping up, accumulator stores high-voltage oil liquid to working barrel p1 mouth, simultaneously in accumulator valve block
On oil-out m connect pressure gauge, the pressure condition of real-time detection accumulator.Progressively set up in start-up course in electromotor
Stable engine oil pressure, before engine oil pressure reaches steady statue, the valve element in automatic relief arrangement cannot overcome spring to make
Firmly action, a2, b mouth of pilot operated directional control valve is in the position communicating, the fluid in accumulator pass through automatic relief arrangement with
Fuel tank is connected it is ensured that the pressure in accumulator is zero, and also meeting engine starting process must be Light Condition simultaneously
Requirement.Without this pilot operated directional control valve, engine starting process, the working barrel being connected with electromotor can by replenishing valve to
So that electromotor is in the working condition with carrying during starting, (especially under cold conditions) makes accumulator topping up
Electromotor is difficult to start.
Claims (2)
1. a kind of new accumulator automatic relief arrangement of underground coal mine explosion-proof vehicle it is characterised in that: include the oil being sequentially connected
Case, working barrel (1), replenishing valve (2), pilot operated directional control valve (3) and accumulator (4), pilot operated directional control valve also with engine motor oil with
And fuel tank connection, the pressure gauge on accumulator (4) outlet connection bridge instrumentation disk,
Described pilot operated directional control valve includes valve body (3.1), valve element (3.2), cover plate (3.4) and spring (3.3), on valve body (3.1)
Have cavity and valve element (3.2) is installed, valve body (3.1) bottom is installed and made the airtight cover plate of cavity (3.4), valve element (3.2) bottom
Connecting spring (3.3) one end, spring (3.3) other end connecting cover plate (3.4), valve element (3.2) has annular on along the circumferential direction
Groove, cannelure to valve element bottom has through hole, valve body (3.1) top open control mouth (c) connect with engine motor oil, simultaneously with valve
Body cavity connects；Spill port (a2) is opened in valve body (3.1) side, and spill port (a2) one end is connected with fuel tank, on the other end and valve element
Cannelure connection, on valve body, the relative axis symmetric position of spill port (a2) has off-load hydraulic fluid port (b), off-load hydraulic fluid port (b)
End is connected with accumulator (4), the other end is connected with the cannelure on valve element, on valve element top annular groove area (s1) and valve body
The ratio of the bottom area (s2) of control mouth is 3:1, and valve element top is provided with annular convex shoulder.
2. the new accumulator automatic relief arrangement of underground coal mine explosion-proof vehicle according to claim 1 it is characterised in that: valve
The setting of core (3.2) bottom is raised to be used for connecting spring (3.3), and cover plate (3.4) top is also provided with projection and is used for connecting spring
(3.3), two parts projection diameter is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410848310.9A CN104595256B (en) | 2014-12-31 | 2014-12-31 | Novel energy accumulator automatic unloading device of coal mine underground explosion-proof vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410848310.9A CN104595256B (en) | 2014-12-31 | 2014-12-31 | Novel energy accumulator automatic unloading device of coal mine underground explosion-proof vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104595256A CN104595256A (en) | 2015-05-06 |
| CN104595256B true CN104595256B (en) | 2017-01-25 |
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| CN201410848310.9A Active CN104595256B (en) | 2014-12-31 | 2014-12-31 | Novel energy accumulator automatic unloading device of coal mine underground explosion-proof vehicle |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026857B (en) * | 2018-08-28 | 2019-12-13 | 苏州理合文科技有限公司 | Automatic unloading device for energy accumulator of underground explosion-proof vehicle of coal mine |
| CN108757596B (en) * | 2018-08-28 | 2019-12-17 | 南京东南建筑机电抗震研究院有限公司 | safety protection method for coal mine underground explosion-proof vehicle |
| CN109488502B (en) * | 2018-09-28 | 2020-11-20 | 潍柴重机股份有限公司 | Pressure relief method for high-pressure oil way after engine flameout |
| CN110081037B (en) * | 2019-03-22 | 2020-06-05 | 中国煤炭科工集团太原研究院有限公司 | Automatic and rapid voltage stabilizing device with self-checking function for energy accumulator and using method |
| CN113954597B (en) * | 2021-09-27 | 2024-05-31 | 中国煤炭科工集团太原研究院有限公司 | Self-adaptive multi-mode rubber wheel transportation trailer control system for coal mine vehicle |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201007291Y (en) * | 2006-12-25 | 2008-01-16 | 东风汽车有限公司设备制造厂 | Energy accumulator depressurized system |
| CN101537810A (en) * | 2009-04-15 | 2009-09-23 | 煤炭科学研究总院太原研究院 | Coal mine underground explosion proof rubber tire transport trolley |
| CN102514562A (en) * | 2011-12-03 | 2012-06-27 | 中国煤炭科工集团太原研究院 | Double-tube fully-hydraulic braking device with closed wet-type multi-disc brakes for coal mine explosion-proof vehicle |
| CN102632922A (en) * | 2011-12-06 | 2012-08-15 | 三一重型装备有限公司 | Dump truck for mine and steering brake control device thereof |
| CN202753367U (en) * | 2011-12-08 | 2013-02-27 | 宁波海天华远机械有限公司 | High-voltage energy accumulator pressure power-off protection system for injection molding machine |
| DE102011120227B4 (en) * | 2011-12-03 | 2013-08-14 | Hydac Fluidtechnik Gmbh | Hydraulic hybrid system for rotary applications |
| CN203374906U (en) * | 2013-08-01 | 2014-01-01 | 温州龙泽轻工机械有限公司 | Pressure release valve |
| CN203779817U (en) * | 2014-04-19 | 2014-08-20 | 宁波工程学院 | Energy accumulator automatic pressure relief system applied to injection molding machine control oil way |
| CN203868006U (en) * | 2014-05-14 | 2014-10-08 | 沈阳工业大学 | Hydraulic automatic pressure relieving device |
| CN204458572U (en) * | 2014-12-31 | 2015-07-08 | 中国煤炭科工集团太原研究院有限公司 | The novel accumulator automatic relief arrangement of underground coal mine explosion-proof vehicle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003056501A (en) * | 2001-08-10 | 2003-02-26 | Komatsu Ltd | Device for supressing pressure fluctuation |
-
2014
- 2014-12-31 CN CN201410848310.9A patent/CN104595256B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201007291Y (en) * | 2006-12-25 | 2008-01-16 | 东风汽车有限公司设备制造厂 | Energy accumulator depressurized system |
| CN101537810A (en) * | 2009-04-15 | 2009-09-23 | 煤炭科学研究总院太原研究院 | Coal mine underground explosion proof rubber tire transport trolley |
| CN102514562A (en) * | 2011-12-03 | 2012-06-27 | 中国煤炭科工集团太原研究院 | Double-tube fully-hydraulic braking device with closed wet-type multi-disc brakes for coal mine explosion-proof vehicle |
| DE102011120227B4 (en) * | 2011-12-03 | 2013-08-14 | Hydac Fluidtechnik Gmbh | Hydraulic hybrid system for rotary applications |
| CN102632922A (en) * | 2011-12-06 | 2012-08-15 | 三一重型装备有限公司 | Dump truck for mine and steering brake control device thereof |
| CN202753367U (en) * | 2011-12-08 | 2013-02-27 | 宁波海天华远机械有限公司 | High-voltage energy accumulator pressure power-off protection system for injection molding machine |
| CN203374906U (en) * | 2013-08-01 | 2014-01-01 | 温州龙泽轻工机械有限公司 | Pressure release valve |
| CN203779817U (en) * | 2014-04-19 | 2014-08-20 | 宁波工程学院 | Energy accumulator automatic pressure relief system applied to injection molding machine control oil way |
| CN203868006U (en) * | 2014-05-14 | 2014-10-08 | 沈阳工业大学 | Hydraulic automatic pressure relieving device |
| CN204458572U (en) * | 2014-12-31 | 2015-07-08 | 中国煤炭科工集团太原研究院有限公司 | The novel accumulator automatic relief arrangement of underground coal mine explosion-proof vehicle |
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| CN104595256A (en) | 2015-05-06 |
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