CN110259491A - The electronic direct-push reversal valve of hydraulic support - Google Patents
The electronic direct-push reversal valve of hydraulic support Download PDFInfo
- Publication number
- CN110259491A CN110259491A CN201910599337.1A CN201910599337A CN110259491A CN 110259491 A CN110259491 A CN 110259491A CN 201910599337 A CN201910599337 A CN 201910599337A CN 110259491 A CN110259491 A CN 110259491A
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- China
- Prior art keywords
- motor
- operation handle
- regulating lever
- operating mechanism
- manual
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 238000006243 chemical reaction Methods 0.000 claims abstract description 19
- 230000033001 locomotion Effects 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 description 17
- 239000000839 emulsion Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 239000003245 coal Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
- E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
- E21D15/512—Arrangement of valves
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The present invention discloses a kind of electronic direct-push reversal valve of hydraulic support, including valve body, the electronic straight thruster for being set to the intracorporal spool of valve and spool being pushed to move in valve body, electronic straight thruster includes shell, manual-operating mechanism, motor-operating mechanism and operation mode conversion block, manual-operating mechanism includes operation handle, operation handle mounting plate, manual guide rod, stroke regulating lever and reset spring, motor-operating mechanism includes motor and electric pushrod, the output shaft of motor is connected with electric pushrod, operation mode conversion block one end is connected with electric pushrod, the other end is located above stroke regulating lever.The present invention drives stroke regulating lever to push directly on inserting valve core and works using manual-operating mechanism or motor-operating mechanism, and multichannel spool can be pushed to work, larger, the less scaling, blocking of crossing liquid gap of this valve.
Description
Technical field
The present invention relates to a kind of reversal valve, specifically a kind of electronic direct-push reversal valve of hydraulic support belongs to hydraulic pressure system
System technical field.
Background technique
Currently, electric-hydraulic control reversing valve is used mostly in the automatic coal working face of coal mine, and the reversal valve was using
Cheng Zhong, because to cross liquid gap small for pilot circuit, failures such as fouling, blocking frequent occurrence, so influence production efficiency, increase maintenance at
This, is the main difficult technical in coal mining automated process.
Summary of the invention
In view of the drawbacks of the prior art, the present invention discloses a kind of electronic direct-push reversal valve of hydraulic support, crosses liquid gap
It is larger, less scaling, blocking.
In order to solve the technical problem, the technical solution adopted by the present invention is that: the electronic direct-push commutation of hydraulic support
Valve, including valve body, the electronic straight thruster for being set to the intracorporal spool of valve and spool being pushed to move in valve body, electronic straight thruster
Including shell, manual-operating mechanism, motor-operating mechanism and operation mode conversion block, manual-operating mechanism include operation handle,
Operation handle mounting plate, manual guide rod, stroke regulating lever and reset spring, operation handle and operation handle mounting plate are rotatablely connected
And case top lid top is mounted on by operation handle mounting plate, stroke regulating lever one end is located in shell, and the other end passes through shell
Body lower cover simultaneously extends to above spool, and manual guide rod is located in the slewing area of operation handle, and the other end passes through on shell
It covers and extends to above stroke regulating lever, reseting spring sleeve is pressed in shell lower cover and stroke regulating lever on stroke regulating lever
Between upper cap, motor-operating mechanism includes motor and electric pushrod, and the output shaft of motor is connected with electric pushrod, and operation mode turns
It changes block one end to be connected with electric pushrod, the other end is located above stroke regulating lever.
Further, operation mode conversion block one end is fixedly connected with electric pushrod, the end above stroke regulating lever
Portion is provided with circular through hole, and manual guide rod passes through the circular through hole and extends to above stroke regulating lever.
Further, enclosure interior is additionally provided with fixed block, and operation mode conversion block one end and fixed block are rotatablely connected, another
End is located above stroke regulating lever, the intermediate position of electric pushrod attended operation mode conversion block.
Further, it is set in valve body there are two spool, electronic straight thruster shell is interior to be equipped with two sets of motor-operating mechanisms, manually
The quantity of other component is also two in addition to operation handle and operation handle mounting plate in operating mechanism, the position of operation handle
Including original position, A and B, when electric operation mode, two sets of motor-operating mechanisms respectively drive two valve core movements, grasp manually
When operation mode, the position A of operation handle respectively corresponds the motion state of two spools with B.
Further, shell is equipped with antenna and cable introducing device, and antenna and cable introducing device are and motor driven
Circuit is connected, and motor-drive circuit is placed on intrinsic safety type circuit board.
Beneficial effects of the present invention: the present invention drives stroke regulating lever using manual-operating mechanism or motor-operating mechanism
Inserting valve core work is pushed directly on, and multichannel spool can be pushed to work, the liquid gap excessively of this valve is larger, less scaling,
Blocking.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment 1；
Fig. 2 is the structural schematic diagram of embodiment 2；
Fig. 3 is the structural schematic diagram of embodiment 3；
In figure: 1, oil cylinder, 2, piston rod, 3, valve body, 4, cable introducing device, 5, lower cover, 6, shell, 7, upper cover, 8, day
Line, 9, operation handle, 10, operation handle mounting plate, 11, motor, 12, manual guide rod, 13, electric pushrod, 14, operation mode turn
Change block, 15, reset spring, 16, stroke regulating lever, 17, gasket, 18, spool, 19, hydraulic fluid port A, 20, hydraulic fluid port B, 21, fixed block.
Specific embodiment
The present invention is further illustrated in the following with reference to the drawings and specific embodiments.
Embodiment 1
The present embodiment discloses a kind of electronic direct-push reversal valve of hydraulic support, as shown in Figure 1, including valve body 3, being set to valve body
Spool 18, the promotion electronic straight thruster moved in valve body 3 of spool 18 in 3 and the oil cylinder 1 being connected with valve body hydraulic fluid port, oil cylinder
Piston rod 2 is equipped in 1.
Electronic straight thruster includes shell 6, manual-operating mechanism, motor-operating mechanism and operation mode conversion block 14.It is electronic
The shell lower cover 5 of straight thruster is connect by bolt with valve body 3, the two intermediate cryptographic packing 17, is provided with multiple internal screw threads on valve body 3
Circular hole, spool 18, hydraulic fluid port A19, hydraulic fluid port B20 are external screw thread cylindrical structures, and spool 18, hydraulic fluid port A19, hydraulic fluid port B20 are screwed into valve respectively
Body 3 is integral with.
Manual-operating mechanism includes operation handle 9, operation handle mounting plate 10, manual guide rod 12,16 and of stroke regulating lever
Reset spring 15, operation handle mounting plate 10 are mounted in case top lid 7 by bolt, and operation handle 9 is pacified by universal bearing
On operation handle mounting plate 10, the rotation connection with operation handle mounting plate 10 is realized.16 one end of stroke regulating lever is located at
In shell 6, the other end passes through shell lower cover 5 and extends to 18 top of spool, and manual 12 one end of guide rod is located at turning for operation handle
In dynamic range, the other end passes through case top lid 7 and extends to 16 top of stroke regulating lever, and 15 sets of reset spring in stroke regulating lever
On 16, it is pressed between shell lower cover 5 and the upper cap of stroke regulating lever 16.The runback power of reset spring 15 be greater than manual guide rod 12 with
Form the sum of 16 weight of adjusting rod.
Motor-operating mechanism includes motor 11 and electric pushrod 13, and motor 11 passes through transmission gear phase with electric pushrod 13
Even, 14 one end of operation mode conversion block is fixedly connected with electric pushrod 13, and the other end is located at 16 top of stroke regulating lever and should
Circular through hole is provided on end, manual guide rod 12 passes through the circular through hole and extends to 16 top of stroke regulating lever.
It being set in the present embodiment, in valve body there are two spool 18, electronic straight thruster shell is interior to be equipped with two sets of motor-operating mechanisms,
Except the quantity of operation handle 9 and the outer other component of operation handle mounting plate 10 is also two in manual-operating mechanism, manipulator
The position of handle 9 include it is in situ, A and B, when electric operation mode, two sets of motor-operating mechanisms respectively drive two spools and transport
Dynamic, when manual operation mode, the position A of operation handle respectively corresponds the motion state of two spools with B.
In the present embodiment, shell is equipped with antenna and cable introducing device, and antenna and cable introducing device drive with motor
Dynamic circuit is connected, and motor-drive circuit is placed on intrinsic safety type circuit board.Control signal can wirelessly be passed by antenna
Motor is passed, or motor is passed to by cable introducing device in a wired manner.
Shell described in the present embodiment is Flameproof shell, and in order to meet the use environment of coal mine, stroke regulating lever is led manually
The cooperation of bar and shell meets explosion-proof criteria requirement.
The course of work of electronic direct-push reversal valve described in the present embodiment are as follows:
(commutation) process of manual operation, there are three positions for operation handle 9: original position, A and B.
When operation handle 9 reaches A, operation handle 9 pushes manual guide rod 12, and manual guide rod 12 is made to push stroke adjustment
Bar 16 pushes spool 18 to fall, and hydraulic fluid port A19 emulsion flows out at this time, and hydraulic fluid port B20 emulsion flows into, hydraulic cylinder stretching, extension；
When operation handle 9 resets in situ, stroke regulating lever 16 resets under the action of reset spring 15, and the spool of pressure is multiple
Position, the emulsion of hydraulic fluid port A19 stops flowing, hydraulic cylinder stopping movement at this time；
When operation handle 9 turns to B, hydraulic fluid port B20 emulsion outflow, hydraulic fluid port A emulsion is flowed into, hydraulic cylinder retraction；
When operation handle 9 resets in situ, emulsion stops flowing, hydraulic cylinder stopping movement.
Hydraulic cylinder is exactly the manual reverse of direction process of the present embodiment reversal valve from the process for being stretched over retraction.
Electric operating (commutation) process:
System control signal is sent to motor driver, motor driver driving electricity by antenna or route introducing device
Machine 11 drives electric pushrod 13 to be elongated to positioning stroke, and pushes spool by operation mode conversion block 14 and stroke regulating lever 16
18 fall, and hydraulic fluid port A19 emulsion flows out at this time, and hydraulic fluid port B emulsion flows into, hydraulic cylinder extension.
When electric pushrod 13, which retracts, to be resetted, stroke regulating lever 16 is resetted through reset spring 15, and spool 18 resets, emulsion
Stop flowing, hydraulic cylinder stopping movement.
Motor action above hydraulic fluid port B20 pushes spool below to fall, at this time hydraulic fluid port by stroke regulating lever
The outflow of B emulsion, hydraulic fluid port A emulsion flow into, hydraulic cylinder retraction.
When reset, emulsion stops flowing, hydraulic cylinder stopping movement.
Hydraulic cylinder is exactly the electronic commutation process of reversal valve from the process for being stretched over retraction.
Embodiment 2
In the present embodiment, operation mode conversion block is using another structure.Specifically as shown in Fig. 2, enclosure interior is additionally provided with fixation
Block 21,14 one end of operation mode conversion block and fixed block 21 are rotatablely connected, and the other end is located at 16 top of stroke regulating lever, electronic to push away
The intermediate position of 13 attended operation mode conversion block 14 of bar.When the motor is energized, electric pushrod 13 pushes operation mode conversion block
14, operation mode conversion block 14 pushes stroke regulating lever 16, then spool is pushed to fall, realizes the movement of reversal valve.By multiple
Position spring 15 is resetted.Other are identical with embodiment 1, are not repeated herein.
Embodiment 3
As shown in figure 3, pushing the intracorporal spool of multiple valves to act in the present embodiment using multiple electronic straight thrusters, forming valve group.
The structure of electronic straight thruster is identical as the structure of electronic straight thruster described in embodiment 1, is not repeated herein.
Described above is only basic principle and preferred embodiment of the invention, and those skilled in the art do according to the present invention
Improvement and replacement out, belong to the scope of protection of the present invention.
Claims (5)
1. the electronic direct-push reversal valve of hydraulic support, it is characterised in that: including valve body, be set to the intracorporal spool of valve and push away
The electronic straight thruster that movable valve plug moves in valve body, electronic straight thruster include shell, manual-operating mechanism, motor-operating mechanism and
Operation mode conversion block, manual-operating mechanism include operation handle, operation handle mounting plate, manual guide rod, stroke regulating lever and
Reset spring, operation handle and operation handle mounting plate, which are rotatablely connected and pass through operation handle mounting plate, to be mounted in case top lid
Portion, stroke regulating lever one end are located in shell, and the other end passes through shell lower cover and extends to above spool, manual guide rod position
In in the slewing area of operation handle, the other end passes through case top lid and extends to above stroke regulating lever, and reseting spring sleeve exists
It on stroke regulating lever, is pressed between shell lower cover and the upper cap of stroke regulating lever, motor-operating mechanism includes motor and electronic pushes away
The output shaft of bar, motor is connected with electric pushrod, and operation mode conversion block one end is connected with electric pushrod, and the other end is located at stroke
Above adjusting rod.
2. the electronic direct-push reversal valve of hydraulic support according to claim 1, it is characterised in that: operation mode conversion block
One end is fixedly connected with electric pushrod, and the end above stroke regulating lever is provided with circular through hole, and manual guide rod passes through the circle
Shape through-hole extends to above stroke regulating lever.
3. the electronic direct-push reversal valve of hydraulic support according to claim 1, it is characterised in that: enclosure interior is additionally provided with
Fixed block, operation mode conversion block one end and fixed block are rotatablely connected, and the other end is located above stroke regulating lever, and electric pushrod connects
Connect the intermediate position of operation mode conversion block.
4. the electronic direct-push reversal valve of hydraulic support according to claim 1, it is characterised in that: there are two being set in valve body
Spool, electronic straight thruster shell is interior to be equipped with two sets of motor-operating mechanisms, removes operation handle and operation handle in manual-operating mechanism
The quantity of the outer other component of mounting plate is also two, and the position of operation handle includes original position, A and B, electric operation mode
When, two sets of motor-operating mechanisms respectively drive two valve core movements, when manual operation mode, the position A of operation handle and B difference
The motion state of corresponding two spools.
5. the electronic direct-push reversal valve of hydraulic support according to claim 1, it is characterised in that: shell is equipped with antenna
With cable introducing device, antenna and cable introducing device are connected with motor-drive circuit, and motor-drive circuit is placed in intrinsic safety type
On circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910599337.1A CN110259491B (en) | 2019-07-04 | 2019-07-04 | Electric direct-pushing reversing valve for hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910599337.1A CN110259491B (en) | 2019-07-04 | 2019-07-04 | Electric direct-pushing reversing valve for hydraulic support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110259491A true CN110259491A (en) | 2019-09-20 |
| CN110259491B CN110259491B (en) | 2024-06-11 |
Family
ID=67924385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910599337.1A Active CN110259491B (en) | 2019-07-04 | 2019-07-04 | Electric direct-pushing reversing valve for hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110259491B (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1421076A (en) * | 1964-01-18 | 1965-12-10 | Dobson Ltd W E & F | Control device for mine roof support |
| SU720168A1 (en) * | 1977-11-01 | 1980-03-05 | Донецкий Государственный Проектно- Конструкторский И Экспериментальный Институт Комплексной Механизации Шахт | Hydraulic directional valve for powered roof supports |
| DE3123224A1 (en) * | 1981-06-11 | 1983-01-05 | Klöckner-Becorit GmbH, 4620 Castrop-Rauxel | Electrically operable, hydraulic control valve |
| US4757835A (en) * | 1985-11-15 | 1988-07-19 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co. | Change-over valve for hydraulic walking mine-roof supports |
| DE4101883C1 (en) * | 1990-11-08 | 1992-01-02 | Bochumer Eisenhuette Heintzmann Gmbh & Co Kg, 4630 Bochum, De | Hydraulic adjuster for mine - has control spindle moving axially in piston to trigger control valve |
| CN2793329Y (en) * | 2005-06-17 | 2006-07-05 | 姜风 | Manual double-connected switching valve with hydraulic control |
| WO2009024136A2 (en) * | 2007-08-23 | 2009-02-26 | Tiefenbach Control Systems Gmbh | Stope supporting structure for face support in mines |
| CN202646209U (en) * | 2012-06-08 | 2013-01-02 | 三一重工股份有限公司 | Valve, multi-way reversing valve and engineering machinery |
| CN205618459U (en) * | 2016-02-05 | 2016-10-05 | 天津华宁电子有限公司 | Manual -automatic valve that commutates |
| US20170227021A1 (en) * | 2014-08-13 | 2017-08-10 | Robert Bosch Gmbh | Electrohydraulic System for Use Under Water, and Process Valve Having an Electrohydraulic System of Said Type |
| CN108005985A (en) * | 2017-12-01 | 2018-05-08 | 宁波五马实业有限公司 | A kind of double drive reversal valves |
| CN207332914U (en) * | 2017-08-14 | 2018-05-08 | 兖矿东华重工有限公司 | The quick setting prop hydraulic system and hand-operated direction valve of a kind of coal mine hydraulic supporting |
| CN108105191A (en) * | 2017-12-13 | 2018-06-01 | 北京天地玛珂电液控制系统有限公司 | Change-over valve core and manual-automatic integral reversal valve |
| CN108799237A (en) * | 2018-08-29 | 2018-11-13 | 黎明液压有限公司 | A kind of electro-hydraulic directional control valve |
| CN208734365U (en) * | 2018-08-02 | 2019-04-12 | 济宁落陵春辉机械制造有限公司 | A kind of coal mine fully-mechanized mining hydraulic support reversal valve |
| CN210289804U (en) * | 2019-07-04 | 2020-04-10 | 山东中煤电器有限公司 | Electric direct-push type reversing valve for hydraulic support |
-
2019
- 2019-07-04 CN CN201910599337.1A patent/CN110259491B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1421076A (en) * | 1964-01-18 | 1965-12-10 | Dobson Ltd W E & F | Control device for mine roof support |
| SU720168A1 (en) * | 1977-11-01 | 1980-03-05 | Донецкий Государственный Проектно- Конструкторский И Экспериментальный Институт Комплексной Механизации Шахт | Hydraulic directional valve for powered roof supports |
| DE3123224A1 (en) * | 1981-06-11 | 1983-01-05 | Klöckner-Becorit GmbH, 4620 Castrop-Rauxel | Electrically operable, hydraulic control valve |
| US4757835A (en) * | 1985-11-15 | 1988-07-19 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co. | Change-over valve for hydraulic walking mine-roof supports |
| DE4101883C1 (en) * | 1990-11-08 | 1992-01-02 | Bochumer Eisenhuette Heintzmann Gmbh & Co Kg, 4630 Bochum, De | Hydraulic adjuster for mine - has control spindle moving axially in piston to trigger control valve |
| CN2793329Y (en) * | 2005-06-17 | 2006-07-05 | 姜风 | Manual double-connected switching valve with hydraulic control |
| WO2009024136A2 (en) * | 2007-08-23 | 2009-02-26 | Tiefenbach Control Systems Gmbh | Stope supporting structure for face support in mines |
| CN202646209U (en) * | 2012-06-08 | 2013-01-02 | 三一重工股份有限公司 | Valve, multi-way reversing valve and engineering machinery |
| US20170227021A1 (en) * | 2014-08-13 | 2017-08-10 | Robert Bosch Gmbh | Electrohydraulic System for Use Under Water, and Process Valve Having an Electrohydraulic System of Said Type |
| CN205618459U (en) * | 2016-02-05 | 2016-10-05 | 天津华宁电子有限公司 | Manual -automatic valve that commutates |
| CN207332914U (en) * | 2017-08-14 | 2018-05-08 | 兖矿东华重工有限公司 | The quick setting prop hydraulic system and hand-operated direction valve of a kind of coal mine hydraulic supporting |
| CN108005985A (en) * | 2017-12-01 | 2018-05-08 | 宁波五马实业有限公司 | A kind of double drive reversal valves |
| CN108105191A (en) * | 2017-12-13 | 2018-06-01 | 北京天地玛珂电液控制系统有限公司 | Change-over valve core and manual-automatic integral reversal valve |
| CN208734365U (en) * | 2018-08-02 | 2019-04-12 | 济宁落陵春辉机械制造有限公司 | A kind of coal mine fully-mechanized mining hydraulic support reversal valve |
| CN108799237A (en) * | 2018-08-29 | 2018-11-13 | 黎明液压有限公司 | A kind of electro-hydraulic directional control valve |
| CN210289804U (en) * | 2019-07-04 | 2020-04-10 | 山东中煤电器有限公司 | Electric direct-push type reversing valve for hydraulic support |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110259491B (en) | 2024-06-11 |
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