CN101403312A - Valve device - Google Patents
Valve device Download PDFInfo
- Publication number
- CN101403312A CN101403312A CNA2008101671099A CN200810167109A CN101403312A CN 101403312 A CN101403312 A CN 101403312A CN A2008101671099 A CNA2008101671099 A CN A2008101671099A CN 200810167109 A CN200810167109 A CN 200810167109A CN 101403312 A CN101403312 A CN 101403312A
- Authority
- CN
- China
- Prior art keywords
- valve
- connecting portion
- flap valve
- piston face
- pressure
- 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.)
- Granted
Links
- 238000005065 mining Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
Images
Classifications
-
- 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)
- Check Valves (AREA)
- Mechanically-Actuated Valves (AREA)
- Actuator (AREA)
- Fluid-Driven Valves (AREA)
Abstract
A valve means for support frame used in mining, includes a first unlockable non-return valve and a second unlockable non-return valve, wherein, the first unlockable non-return valve is communicated to a setting cylinder of the support frame, the second non-return valve is communicated to a lifting cylinder of the support frame, and both the non-return valves are connected to each other.
Description
Technical field
The present invention relates to a kind of valve gear that is used for the bracing frame of mine, it comprises first flap valve that can open, this first flap valve that can open has and is used for the piston face connecting portion and the ring surface connecting portion that are connected with the setting cylinder (setting cylinder) of bracing frame and pressure piping connecting portion.In addition, this valve gear comprises second flap valve that can open, the piston face connecting portion that this second flap valve that can open has the pressure piping connecting portion, is connected with the piston face of the lift cylinder of the slideway that is used for bracing frame, and control system connecting portion.
Background technology
This valve gear is known according to prior art, thereby, set cylinder and be used to set bracing frame, and lift cylinder is used to promote the whole shield support that has slideway.Yet the problem of known valve gear is, is drawn forward when moving at shield support, because advancement mechanism has occupied too much hydraulic pressure capacity in this case, so the pressure at the piston face place of lift cylinder can not be kept always.
Summary of the invention
The object of the present invention is to provide a kind ofly else to have the valve gear of simple designs for initial specified class as previously mentioned, this valve gear can be made cost-effectively, and can overcome the problems referred to above.
This purpose realizes by the feature of claim 1, the valve gear by the above-mentioned type particularly, wherein the control connection portion of second flap valve is communicated with the piston face connecting portion of first flap valve, and the pressure piping connecting portion of second flap valve is connected with the ring surface connecting portion of first flap valve.
Employing is according to valve gear of the present invention, because second flap valve is connected between the piston face connecting portion of the ring surface connecting portion of setting cylinder and lift cylinder, and can be controlled so be used for the lift cylinder of slideway by setting cylinder.The lift cylinder that is used for slideway also is considered to the pedestal elevator, can control in very simple mode by this valve gear, and the pressure loss not occur.Simultaneously, described valve gear can be formed in the valve piece, and can make cost-effectively thus.
In manual, accompanying drawing and dependent claims, the preferred embodiments of the present invention are described.
According to first preferred embodiment, a pressure limiting valve can be set between the piston face connecting portion of the pressure piping connecting portion of second flap valve and second flap valve.Like this, after lift cylinder was extended, the while shield support was drawn forward moving, and the pressure that is applied on the lift cylinder can be limited.
According to another preferred embodiment, all valves can be set in the public valve piece.Such valve piece can directly be given prominence to and set on the cylinder.So just the control system and the original known building method of lift cylinder might be formed integral body.
A kind of special economical and effective of second flap valve and the building method of saving the space can be implemented, if second flap valve is a ball valve, the contact plug that it can be by acting on ball is by switch.
A kind of building method of compactness can be implemented as in the hole that second flap valve is inserted into the valve piece, and this hole connects two other holes that are arranged in this valve piece.
According on the other hand, the invention still further relates to a kind of bracing frame, it has at least one valve gear of setting cylinder and at least one lift cylinder and the above-mentioned type.
Description of drawings
Present invention is described in the mode of example fully hereinafter with reference to preferred embodiment and included accompanying drawing.Shown in the accompanying drawing:
Fig. 1 is the schematic circuit diagram according to valve gear of the present invention;
Fig. 2 is by having the cross section according to the valve piece of valve gear of the present invention; And
Fig. 3 is the enlarged drawing of second flap valve.
The specific embodiment
Schematic circuit diagram shown in Fig. 1 shows the valve gear of the bracing frame that is used for mine, and it comprises that two are set cylinder 10,12 and lift cylinder 14.First flap valve 16 that can open has piston face connecting portion 18, ring surface connecting portion 20 and pressure piping connecting portion 22, and this first flap valve 16 that can open is used for control and sets cylinder 10.Piston face connecting portion 18 is communicated with the piston face A ' that sets cylinder 10, and ring surface connecting portion 20 is connected with the ring surface B ' of setting cylinder 10, and while ring surface connecting portion 20 is control connection portions of valve 16.Pressure piping connecting portion 22 is connected with pressure piping A2.
In order to set plunger 10, pressure is applied on the pipeline A2, extends so that set cylinder.Like this, pressure fluid flow back into pipeline B from the ring surface connecting portion B ' that sets cylinder 10.For the plunger 10 of withdrawing, pressure is applied on the pipeline B, because first flap valve 16 is owing to process control connection portion 20 applied pressures are opened, thereby hydraulic fluid flows out from the piston space of setting cylinder 10, flow back into pipeline A2 via connecting portion A '.Simultaneously, pressure is applied on the pressure connecting portion 26 of flap valve 24, so that the piston space of lift cylinder 14 is applied in pressure and extends.When withdrawal finished, the pressure among the pipeline B descended once more, so that second flap valve 24 cuts out, and the state of lift cylinder after keeping extending.The pressure of lift cylinder 14 can limit by pressure limiting valve 32.Subsequently, when setting cylinder 10 and set once more, pressure is applied on the pipeline A2, so that second flap valve 24 opens, and lift cylinder can withdraw, and sets cylinder 10 simultaneously and is extended.
Fig. 2 shows the cross section by the valve piece 40 that forms as one, and this valve piece 40 is used for holding first flap valve 16, second flap valve 24, pressure limiting valve 32 and pressure limiting valve 34 (not drawing at Fig. 2).
Valve piece 40 has four transverse holes 42,44,46 and 48, and these transverse holes are arranged above each other and in parallel to each other in valve piece 40.The transverse holes 42 of lowest part is used for inserting pressure limiting valve 34 at its left openend among Fig. 2, inserts pressure sensor 36 at its right openend.Hole 42 is connected with transverse holes 44 via a vertical hole, and pressure connecting portion A2 is positioned at the left openend of transverse holes 44.First flap valve 16 is inserted into the right-hand member of transverse holes 44, and has the valve piston and the pot type control piston of loading spring in known manner, and wherein first flap valve 16 is illustrated as being in open mode.Pressure fluid is directed to the piston face connecting portion A ' that sets cylinder 10 by the hole in the plane of accompanying drawing.By the control that realize first flap valve 16 in vertical hole 50, the transverse holes 46 that wherein vertical hole 50 will be communicated with pressure connecting portion B is connected to annular space 52, and the control piston of valve 16 can be operated by means of the hole 54 that is arranged in the valve 16 thus.
In addition, a vertical hole is connected to two transverse holes 46 and 48 with pressure connecting portion A ', and second flap valve 24 is inserted in this vertical hole, and this is carried out to amplify in Fig. 3 and shows.
Claims (6)
1. valve gear that is used for the bracing frame of mine comprises:
First flap valve (16) that can open, it has and is used for the piston face connecting portion (18) and the ring surface connecting portion (20) that are connected with the setting cylinder (10) of support frame as described above, and pressure piping connecting portion (22), and
Second flap valve (24) that can open, piston face connecting portion (28) and control connection portion (30) that it has pressure piping connecting portion (26), is connected with the piston face of the lift cylinder (14) of the slideway that is used for support frame as described above,
It is characterized in that, the control connection portion (30) of described second flap valve (24) is communicated with the piston face connecting portion (18) of first flap valve (16), and the pressure piping connecting portion (26) of described second flap valve (24) is communicated with the ring surface connecting portion (20) of first flap valve (16).
2. valve gear according to claim 1 is characterized in that, pressure limiting valve (32) is set between the pressure piping connecting portion (26) and piston face connecting portion (28) of described second flap valve (24).
3. according to claim 1 or the described valve gear of claim 2, it is characterized in that all valves (16,26,32,34) are set in the public valve piece (40).
4. according to the described valve gear of arbitrary claim in the aforementioned claim, it is characterized in that described second flap valve (24) is a ball valve, the pin (68) of this ball valve by acting on ball (60) is by switch.
5. according to the described valve gear of arbitrary claim in the aforementioned claim, it is characterized in that described second flap valve (24) is inserted in the hole (56) of valve piece (40), this hole connects two the other holes (46,48) that are arranged in the described valve piece.
6. bracing frame that is used to exploit, it has at least one and sets cylinder (10), at least one lift cylinder (14) and according to the described valve gear of at least one claim in the aforementioned claim, wherein:
The piston face connecting portion (18) of described first flap valve (16) is communicated with the piston face (A ') of described setting cylinder (10), and the ring surface connecting portion (20) of described first flap valve (16) is communicated with the ring surface (B ') of described setting cylinder (10), and
The piston face connecting portion (28) of described second flap valve (24) is communicated with the piston face of described lift cylinder (14).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007047761.0 | 2007-10-05 | ||
| DE102007047761A DE102007047761B4 (en) | 2007-10-05 | 2007-10-05 | Valve arrangement and expansion rack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101403312A true CN101403312A (en) | 2009-04-08 |
| CN101403312B CN101403312B (en) | 2013-07-24 |
Family
ID=40435256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810167109 Expired - Fee Related CN101403312B (en) | 2007-10-05 | 2008-09-27 | Valve device and support frame including the valve device |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN101403312B (en) |
| DE (1) | DE102007047761B4 (en) |
| PL (1) | PL216113B1 (en) |
| RU (1) | RU2468208C2 (en) |
| UA (1) | UA92934C2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022395A (en) * | 2009-09-18 | 2011-04-20 | 玛珂系统分析和开发有限公司 | Valve arrangement |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015105922A1 (en) | 2015-04-17 | 2016-10-20 | Marco Systemanalyse Und Entwicklung Gmbh | valve assembly |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU415380A1 (en) * | 1972-10-24 | 1974-02-15 | ||
| DE2622285C3 (en) * | 1976-05-19 | 1978-11-09 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal | Push-button control device for hydraulic support |
| SU848678A1 (en) * | 1979-12-04 | 1981-07-23 | Ордена Трудовгго Красного Знамениинститут Горного Дела Им.A.A.Cko-Чинского | Power roof support unit |
| SU945468A1 (en) * | 1981-01-15 | 1982-07-23 | Ордена Октябрьской Революции И Ордена Трудового Красного Знамени Институт Горного Дела Им.А.А.Скочинского | Power roof support unit |
| SU976082A1 (en) * | 1981-06-02 | 1982-11-23 | Центральный Научно-Исследовательский И Проектно-Конструкторский Институт Проходческих Машин И Комплексов Для Угольной,Горной Промышленности И Подземного Строительства | Hydraulic system for controlling the thrust and walking arrangement of an entry-driving cutter-loader |
| GB2115047B (en) * | 1982-02-03 | 1985-06-19 | Dowty Mining Equipment Ltd | Mine roof support system |
| SU1116172A1 (en) * | 1982-10-11 | 1984-09-30 | Государственный проектно-конструкторский и технологический институт подъемно-транспортного машиностроения | Apparatus for controlling a power support unit |
| GB2137314B (en) * | 1983-03-26 | 1986-07-23 | Dobson Park Ind | Valve for mine support |
| DE3825276A1 (en) * | 1988-07-26 | 1990-04-05 | Kloeckner Becorit Gmbh | METHOD AND DEVICE FOR RELEASING, BACKING AND SETTING A SHIELD EXTENSION FRAME |
| RU36443U1 (en) * | 2003-09-15 | 2004-03-10 | Открытое акционерное общество "Подмосковный научно-исследовательский и проектно-конструкторский угольный институт" | The hydraulic system of the mechanized lining section |
| CN1886575A (en) * | 2003-11-29 | 2006-12-27 | 迪芬巴赫控制系统股份有限公司 | Hydraulic circuit used for longwall face removal |
| CN2723678Y (en) * | 2004-07-26 | 2005-09-07 | 李文洁 | Hydraulic support control valve unit |
| CN2830641Y (en) * | 2005-07-08 | 2006-10-25 | 齐莹 | Valve box of hydraulic prop |
| DE102006057601A1 (en) * | 2006-12-06 | 2008-06-12 | Marco Systemanalyse Und Entwicklung Gmbh | Mining prop position system, at high pressure, has a bypass non-return valve at the piston to block a flow towards the entry into the cylinder |
-
2007
- 2007-10-05 DE DE102007047761A patent/DE102007047761B4/en not_active Expired - Fee Related
-
2008
- 2008-09-27 CN CN 200810167109 patent/CN101403312B/en not_active Expired - Fee Related
- 2008-09-30 PL PL386194A patent/PL216113B1/en unknown
- 2008-10-03 RU RU2008139470/03A patent/RU2468208C2/en active
- 2008-10-03 UA UAA200811820A patent/UA92934C2/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022395A (en) * | 2009-09-18 | 2011-04-20 | 玛珂系统分析和开发有限公司 | Valve arrangement |
| CN102022395B (en) * | 2009-09-18 | 2015-06-17 | 玛珂系统分析和开发有限公司 | Valve arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2008139470A (en) | 2010-04-10 |
| DE102007047761B4 (en) | 2013-12-05 |
| UA92934C2 (en) | 2010-12-27 |
| PL386194A1 (en) | 2009-04-14 |
| RU2468208C2 (en) | 2012-11-27 |
| DE102007047761A1 (en) | 2009-04-16 |
| PL216113B1 (en) | 2014-02-28 |
| CN101403312B (en) | 2013-07-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20200927 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |