CN106224316A - A kind of low seam mining machinery pile-up valve group - Google Patents
A kind of low seam mining machinery pile-up valve group Download PDFInfo
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- CN106224316A CN106224316A CN201610785967.4A CN201610785967A CN106224316A CN 106224316 A CN106224316 A CN 106224316A CN 201610785967 A CN201610785967 A CN 201610785967A CN 106224316 A CN106224316 A CN 106224316A
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- oil
- valve
- control
- electromagnetic valve
- hydraulicchange
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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
- 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
Abstract
The present invention proposes a kind of low seam mining machinery pile-up valve group, including main valve body, there is inside main valve body oil circuit, the outside one end of main valve body is provided with articulated body, oil-in is positioned at the entrance point of articulated body, the articulated body port of export stretches in main valve body, and and oil communication, articulated body is provided with high-pressure manometer, the outside other end of main valve body is provided with the braking electromagnetic valve with oil communication, the outside two ends of main valve body are additionally provided with the control electromagnetic valve group with oil communication, control electromagnetic valve group and be positioned at below articulated body and braking electromagnetic valve, main valve body external front face is provided with the low pressure gauge with oil communication；Main valve body inner upper is provided with the high-pressure overflow valve with oil communication, low pressure relief valve, and main valve body lower inside is provided with the hands hydraulicchange-over valve group with oil communication, and in main valve body, middle and upper part is additionally provided with the fine filter with oil communication and check valve.This pile-up valve group is arranged by two-layer generally, and integrated level is high, rationally distributed, volume is little, is suitable for girdle and very thin seam coal winning machine.
Description
Technical field
The present invention relates to coal-winning machine, particularly relate to a kind of low seam mining machinery pile-up valve group.
Background technology
At present, the tractive manner of coal-winning machine is substantially all employing electrical haulage, for electrical haulage shearer, hydraulic system
Become is relatively easy, but still essential, needs it to realize heightening and control to liquid braking device of coal-winning machine left and right rocking arm.
Valve group is very important ingredient in hydraulic system, is the guarantee realizing its function.Owing to girdle is mined
Machine machine height is low, and installing space is little, and therefore, the valve group designed routinely cannot meet the use requirement of low seam mining machinery.
ZL201420743325.4 discloses a kind of valve group using sheet valve arrangement, is only applicable to medium-thickness seam coal-winning machine.
ZL201210569354.9 discloses a kind of pile-up valve group, can be used for low seam mining machinery, but it exists underintegration height
(left hand and right hand hydraulicchange-over valve and filter are arranged in manifold block outer), the deficiency such as layout is the most perfect, volume is relatively large.
In view of this, nowadays in the urgent need to designing a kind of new low seam mining machinery pile-up valve group, thin thoroughly to solve
Coal seam coal-winning machine causes, due to narrow space, the problem that conventional valve group cannot install.
Summary of the invention
It is an object of the invention to provide a kind of low seam mining machinery pile-up valve group, for low seam mining machinery, to solve
Low seam mining machinery causes, due to narrow space, the problem that conventional valve group cannot install.
The present invention solves that its technical problem be employed technical scheme comprise that,
A kind of low seam mining machinery pile-up valve group, including main valve body, main valve body side is provided with oil-in, and its opposite side sets
There is working oil refluxing opening and control oil refluxing opening, there is inside main valve body oil circuit, working oil refluxing opening and control oil refluxing opening and lead to
Cross oil circuit to connect with oil-in；
The outside one end of main valve body is provided with articulated body, and oil-in is positioned at the entrance point of articulated body, and the articulated body port of export stretches into master
In valve body, and and oil communication, articulated body is provided with high-pressure manometer, and the outside other end of main valve body is provided with the system with oil communication
Moving electromagnetic valve, braking electromagnetic valve is connected with brake, braking electromagnetic valve be controlled brake, and the outside two ends of main valve body are also
It is provided with the control electromagnetic valve group with oil communication, controls electromagnetic valve group and be positioned at below articulated body and braking electromagnetic valve, outside main valve body
Front, portion is provided with the low pressure gauge with oil communication；
Main valve body inner upper is provided with the high-pressure overflow valve with oil communication, low pressure relief valve, and main valve body lower inside sets
Having the hands hydraulicchange-over valve group with oil communication, the outfan of hands hydraulicchange-over valve group stretches out outside main valve body, and heightens oil
Cylinder connects, hands hydraulicchange-over valve group be controlled heightening oil cylinder, and in main valve body, middle and upper part is additionally provided with the essence with oil communication
Filter and check valve；
Oil circuit includes working oil path, oil circuit control, working oil backflow oil circuit and controls oil backflow oil circuit, working oil path
Arrival end connects with oil-in, and its port of export and working oil backflow oil communication, hands hydraulicchange-over valve group is serially connected with working oil path
In, low pressure relief valve is positioned at working oil backflow oil circuit end, and working oil refluxing opening is positioned at low pressure relief valve exit, working oil path
Connected by high-pressure overflow valve with between working oil backflow oil circuit, filtered by essence between working oil backflow oil circuit and oil circuit control
Device and check valve even, control electromagnetic valve group and braking electromagnetic valve connect with oil circuit control respectively；
Hands electromagnetic valve group of surging includes left hand hydraulicchange-over valve and right hand hydraulicchange-over valve, the fuel feeding of left hand hydraulicchange-over valve
Mouth connects with working oil path, and its oil revolving end connects with the oil-feed port of right hand hydraulicchange-over valve, the oil return opening of right hand hydraulicchange-over valve
With working oil backflow oil communication, the delivery outlet of left hand hydraulicchange-over valve is heightened oil cylinder with a left side and is connected, by left hand hydraulicchange-over valve
A left side being heightened oil cylinder be controlled, the delivery outlet of right hand hydraulicchange-over valve is heightened oil cylinder with the right side and is connected, by right hand hydraulicchange-over valve
The right side is heightened oil cylinder be controlled；
Control electromagnetic valve group and include left control electromagnetic valve and right control electromagnetic valve, the fuel feeding end of left control electromagnetic valve and control
Oil communication, its oil revolving end and control oil backflow oil communication, its outfan connects with left hand hydraulicchange-over valve, left control electricity
Left hand hydraulicchange-over valve is controlled by magnet valve, and the fuel feeding end of right control electromagnetic valve connects with oil circuit control, its oil revolving end and control
Liquefaction backflow oil communication, its outfan connects with right hand hydraulicchange-over valve, by right control electromagnetic valve to right hand hydraulicchange-over valve
It is controlled；
The fuel feeding end of braking electromagnetic valve connects with oil circuit control, its oil revolving end and control oil backflow oil communication, its output
End connects with brake, braking electromagnetic valve be controlled brake；
Low pressure gauge before low pressure relief valve with working oil reflux oil communication.
This pile-up valve group is arranged by two-layer generally, articulated body, high-pressure manometer, left control electromagnetic valve, right control electromagnetism
Valve, braking electromagnetic valve and low pressure gauge are arranged in main valve body periphery upper and lower sides, and remaining each part is upper and lower in being all integrated in main valve body
Portion, each part ganged up by the oil circuit within main valve body realize the left and right of coal-winning machine manually, automatic adjustment height and hydraulic braking etc.
Function；
Hydraulic oil from oil-in enter articulated body laggard enter main valve body, and with the high-pressure manometer phase being arranged on articulated body
Logical, with display system pressure, the hydraulic oil entering into main valve body is divided into two-way, road connection left hand hydraulicchange-over valve and a right hand liquid
Dynamic reversal valve, is used for controlling to heighten oil cylinder lifting, a road connection high-pressure overflow valve, realizes overflow when system pressure is too high and protect
Protecting, two-way finally converges to connecting low pressure relief valve together, then flows back to fuel tank through working oil refluxing opening；Before low pressure relief valve, point
Go out a road low pressure oil and be used as oil circuit control, and be connected with low pressure gauge, to show low voltage control system pressure, low voltage-controlled
First liquefaction road connects fine filter and check valve, is then divided into three tunnels, a road to connect left control electromagnetic valve, and a road connects right control
Electromagnetic valve processed, a road connection braking electromagnetic valve, then three tunnels are converged to flowing back to fuel tank via control oil refluxing opening together.
It is an advantage of the current invention that
1. this pile-up valve group is arranged by two-layer generally, and integrated level is high, rationally distributed, volume is little, is very suitable for bog-head coal
Layer and very thin seam coal winning machine；
2. low voltage control oil circuit is provided with fine filter, is used for purifying further the oil of low voltage control oil circuit, improves
The operational reliability of low voltage control system；
3. low voltage control oil circuit is provided with check valve, the system pressure fluctuation impact on braking effect can be avoided.
Accompanying drawing explanation
Fig. 1 is the Facad structure schematic diagram of the low seam mining machinery pile-up valve group that the present invention proposes；
Fig. 2 is the structure schematic diagram of this pile-up valve group；
Fig. 3 is the top view of this pile-up valve group；
Fig. 4 is the A-A sectional view of Fig. 1；
Fig. 5 is the fundamental diagram of this pile-up valve group.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect, below knot
Close diagram and specific embodiment, the present invention is expanded on further.
As shown in Fig. 1～Fig. 5, the low seam mining machinery pile-up valve group that the present invention proposes includes main valve body 1, main valve body one
Side is provided with oil-in, and its opposite side is provided with working oil refluxing opening and controls oil refluxing opening, has oil circuit, working oil inside main valve body
Refluxing opening and control oil refluxing opening are connected with oil-in by oil circuit；The outside one end of main valve body is provided with articulated body 2, and oil-in is positioned at
The entrance point of articulated body, the articulated body port of export stretches in main valve body, and and oil communication, articulated body is provided with high-pressure manometer 3,
The outside other end of main valve body is provided with the braking electromagnetic valve 4 with oil communication, and braking electromagnetic valve is connected with brake, by braking electromagnetism
Brake is controlled by valve, and the outside two ends of main valve body are additionally provided with the control electromagnetic valve group with oil communication, control electromagnetic valve group
Being positioned at below articulated body and braking electromagnetic valve, main valve body external front face is provided with the low pressure gauge 5 with oil communication；In main valve body
Portion is arranged over the high-pressure overflow valve 6 with oil communication, low pressure relief valve 7, and main valve body lower inside is provided with and oil communication
Hands hydraulicchange-over valve group, the outfan of hands hydraulicchange-over valve group stretches out outside main valve body, connects with heightening oil cylinder, hands surges
Reversal valve group is controlled heightening oil cylinder, and in main valve body, middle and upper part is additionally provided with the fine filter 8 with oil communication and check valve
9；
Oil circuit includes working oil path, oil circuit control, working oil backflow oil circuit and controls oil backflow oil circuit, working oil path
Arrival end connects with oil-in, and its port of export and working oil backflow oil communication, hands hydraulicchange-over valve group is serially connected with working oil path
In, low pressure relief valve is positioned at working oil backflow oil circuit end, and working oil refluxing opening is positioned at low pressure relief valve exit, working oil path
Connected by high-pressure overflow valve with between working oil backflow oil circuit, filtered by essence between working oil backflow oil circuit and oil circuit control
Device and check valve even, control electromagnetic valve group and braking electromagnetic valve connect with oil circuit control respectively；Hands electromagnetic valve group of surging includes
Left hand hydraulicchange-over valve 10 and right hand hydraulicchange-over valve 11, the oil-feed port of left hand hydraulicchange-over valve connects with working oil path, its time
Oil end connects with the oil-feed port of right hand hydraulicchange-over valve, the oil return opening of right hand hydraulicchange-over valve and working oil backflow oil communication,
The delivery outlet of left hand hydraulicchange-over valve is heightened oil cylinder with a left side and is connected, left hand hydraulicchange-over valve a left side is heightened oil cylinder and be controlled,
The delivery outlet of right hand hydraulicchange-over valve is heightened oil cylinder with the right side and is connected, the right hand hydraulicchange-over valve right side is heightened oil cylinder and be controlled；
Control electromagnetic valve group and include left control electromagnetic valve 12 and right control electromagnetic valve 13, the fuel feeding end of left control electromagnetic valve and oil circuit control
Connection, its oil revolving end and control oil backflow oil communication, its outfan connects with left hand hydraulicchange-over valve, by left control electromagnetic valve
Being controlled left hand hydraulicchange-over valve, the fuel feeding end of right control electromagnetic valve connects with oil circuit control, its oil revolving end and control oil
Backflow oil communication, its outfan connects with right hand hydraulicchange-over valve, right control electromagnetic valve carry out right hand hydraulicchange-over valve
Control；The fuel feeding end of braking electromagnetic valve connects with oil circuit control, its oil revolving end with control oil backflow oil communication, its outfan with
Brake connects, braking electromagnetic valve be controlled brake；Low pressure gauge returned with working oil before low pressure relief valve
Stream oil communication.
This pile-up valve group is arranged by two-layer generally, articulated body, high-pressure manometer, left control electromagnetic valve, right control electromagnetism
Valve, braking electromagnetic valve and low pressure gauge are arranged in main valve body periphery upper and lower sides, and remaining each part is upper and lower in being all integrated in main valve body
Portion, each part ganged up by the oil circuit within main valve body realize the left and right of coal-winning machine manually, automatic adjustment height and hydraulic braking etc.
Function；
Hydraulic oil from oil-in enter articulated body laggard enter main valve body, and with the high-pressure manometer phase being arranged on articulated body
Logical, with display system pressure, the hydraulic oil entering into main valve body is divided into two-way, road connection left hand hydraulicchange-over valve and a right hand liquid
Dynamic reversal valve, is used for controlling to heighten oil cylinder lifting, a road connection high-pressure overflow valve, realizes overflow when system pressure is too high and protect
Protecting, two-way finally converges to connecting low pressure relief valve together, then flows back to fuel tank through working oil refluxing opening；Before low pressure relief valve, point
Go out a road low pressure oil and be used as oil circuit control, and be connected with low pressure gauge, to show low voltage control system pressure, low voltage-controlled
First liquefaction road connects fine filter and check valve, is then divided into three tunnels, a road to connect left control electromagnetic valve, and a road connects right control
Electromagnetic valve processed, a road connection braking electromagnetic valve, then three tunnels are converged to flowing back to fuel tank via control oil refluxing opening together.
When not heightening, right-hand man's hydraulicchange-over valve is in middle position under the action of the spring, and hydraulic oil surges commutation from left hand
The P1 mouth (oil-feed port) of valve enters, O1 mouth (oil return opening) out, subsequently into P2 mouth (oil-feed port), the O2 of right hand hydraulicchange-over valve
Mouth (oil return opening) out, is then passed to low pressure relief valve oil return；When heightening, it is manually operable a left side (right) hands hydraulicchange-over valve
Handle so that it is be in left position or right position, such hydraulic oil just enters oil cylinder via P1 (P2) to A1 (A2) or B1 (B2), then via
B1 (B2) or A1 (A2) to O1 (O2) flows out, and realizes heightening the hand-operated lifting of oil cylinder.
When left and right control electromagnetic valve must not electricity time, left and right control electromagnetic valve is in middle position, low voltage control oil and left hand and right hand
Hydraulicchange-over valve control port is obstructed, and coal-winning machine is in uncomfortable high state；When left and right control electromagnetic valve obtains electric, left and right control
Valve core of the electromagnetic valve shifts, and low voltage control oil flows to the control port of left hand and right hand hydraulicchange-over valve and then promotes its spool to move, and comes
Realize heightening the automatic lifting of oil cylinder.
Braking electromagnetic valve is for controlling opening and band-type brake of coal-winning machine brake；When coal-winning machine leads the stopping time, braking electromagnetic valve
Must not be electric, spool is in normal position, and low voltage control oil is obstructed with brake, and brake is in brake sticking brake state；Work as coal mining
Machine leads when opening, and braking electromagnetic valve obtains electric, and spool shifts, and low voltage control oil communicates with brake, and brake is in open mode.
Embodiment of above, only for technology design and the feature of the explanation present invention, its object is to allow those skilled in the art
Member understands present disclosure and is carried out, and can not limit the scope of the invention with this, all according to present invention spirit
The equivalence that essence is done changes or modifies, and all should contain within the scope of the present invention.
Claims (5)
1. a low seam mining machinery pile-up valve group, including main valve body, main valve body side is provided with oil-in, and its opposite side is provided with
Working oil refluxing opening and control oil refluxing opening, have oil circuit, working oil refluxing opening and control oil refluxing opening and pass through inside main valve body
Oil circuit connects with oil-in, it is characterised in that:
The outside one end of main valve body is provided with articulated body, and oil-in is positioned at the entrance point of articulated body, and the articulated body port of export stretches into main valve body
In, and and oil communication, articulated body is provided with high-pressure manometer, and the outside other end of main valve body is provided with the braking electricity with oil communication
Magnet valve, braking electromagnetic valve is connected with brake, braking electromagnetic valve be controlled brake, and the outside two ends of main valve body are additionally provided with
With the control electromagnetic valve group of oil communication, control electromagnetic valve group and be positioned at below articulated body and braking electromagnetic valve, outside main valve body just
Face is provided with the low pressure gauge with oil communication；
Main valve body inner upper is provided with the high-pressure overflow valve with oil communication, low pressure relief valve, main valve body lower inside be provided with
The hands hydraulicchange-over valve group of oil communication, the outfan of hands hydraulicchange-over valve group stretches out outside main valve body, connects with heightening oil cylinder
Logical, hands hydraulicchange-over valve group it is controlled heightening oil cylinder, in main valve body, middle and upper part is additionally provided with the essence filtration with oil communication
Device and check valve.
A kind of low seam mining machinery pile-up valve group the most according to claim 1, it is characterised in that:
Oil circuit includes working oil path, oil circuit control, working oil backflow oil circuit and controls oil backflow oil circuit, the entrance of working oil path
End connects with oil-in, and its port of export and working oil backflow oil communication, hands hydraulicchange-over valve group is serially connected with in working oil path, low
Pressurized overflow valve is positioned at working oil backflow oil circuit end, and working oil refluxing opening is positioned at low pressure relief valve exit, working oil path and work
Make oil backflow oil circuit between connect by high-pressure overflow valve, working oil backflow oil circuit and oil circuit control between pass through fine filter and
Check valve even, controls electromagnetic valve group and braking electromagnetic valve connects with oil circuit control respectively.
A kind of low seam mining machinery pile-up valve group the most according to claim 2, it is characterised in that:
Hands electromagnetic valve group of surging includes left hand hydraulicchange-over valve and right hand hydraulicchange-over valve, the oil-feed port of left hand hydraulicchange-over valve with
Working oil path connects, and its oil revolving end connects with the oil-feed port of right hand hydraulicchange-over valve, the oil return opening of right hand hydraulicchange-over valve and work
Making oil backflow oil communication, the delivery outlet of left hand hydraulicchange-over valve is heightened oil cylinder with a left side and is connected, by left hand hydraulicchange-over valve to a left side
Heightening oil cylinder to be controlled, the delivery outlet of right hand hydraulicchange-over valve is heightened oil cylinder with the right side and is connected, by right hand hydraulicchange-over valve to the right side
Heighten oil cylinder to be controlled；
Control electromagnetic valve group and include left control electromagnetic valve and right control electromagnetic valve, the fuel feeding end of left control electromagnetic valve and oil circuit control
Connection, its oil revolving end and control oil backflow oil communication, its outfan connects with left hand hydraulicchange-over valve, by left control electromagnetic valve
Being controlled left hand hydraulicchange-over valve, the fuel feeding end of right control electromagnetic valve connects with oil circuit control, its oil revolving end and control oil
Backflow oil communication, its outfan connects with right hand hydraulicchange-over valve, right control electromagnetic valve carry out right hand hydraulicchange-over valve
Control.
A kind of low seam mining machinery pile-up valve group the most according to claim 2, it is characterised in that the confession of braking electromagnetic valve
Oil end connects with oil circuit control, and its oil revolving end and control oil backflow oil communication, its outfan connects with brake, by braking electricity
Brake is controlled by magnet valve.
A kind of low seam mining machinery pile-up valve group the most according to claim 2, it is characterised in that low pressure gauge is low
Reflux before pressurized overflow valve oil communication with working oil.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610785967.4A CN106224316B (en) | 2016-08-30 | 2016-08-30 | A kind of integrated valve group of low seam mining machinery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610785967.4A CN106224316B (en) | 2016-08-30 | 2016-08-30 | A kind of integrated valve group of low seam mining machinery |
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| CN106224316A true CN106224316A (en) | 2016-12-14 |
| CN106224316B CN106224316B (en) | 2018-10-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255097A (en) * | 2017-08-01 | 2017-10-17 | 天地科技股份有限公司上海分公司 | Low seam mining machinery heightens valve group with two-way |
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| Publication number | Publication date |
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| CN106224316B (en) | 2018-10-02 |
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