CN108590718A - Column stops contracting valve - Google Patents
Column stops contracting valve Download PDFInfo
- Publication number
- CN108590718A CN108590718A CN201810418609.9A CN201810418609A CN108590718A CN 108590718 A CN108590718 A CN 108590718A CN 201810418609 A CN201810418609 A CN 201810418609A CN 108590718 A CN108590718 A CN 108590718A
- Authority
- CN
- China
- Prior art keywords
- valve
- hydraulic control
- column
- channel
- trepanning
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 238000005299 abrasion Methods 0.000 abstract description 8
- 239000000839 emulsion Substances 0.000 description 8
- 239000003245 coal Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000012224 working solution Substances 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Safety Valves (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a kind of columns to stop contracting valve, including：Valve casing；Valve seat, valve seat are connect with valve casing；Safety valve, safety valve are screwed in the endoporus of valve seat, and safety valve is fastened in valve casing；Hydraulic control one-way valve, hydraulic control one-way valve are fastened by bolts on valve casing, and there are three sealing rings for setting at the faying face of hydraulic control one-way valve and valve casing；One end of first passage, first passage is connected to safety valve, and the other end of first passage is connected to by the first trepanning with hydraulic control one-way valve；First external hole, the first external hole are set on valve casing；And second channel, second channel are connected to the first external hole, second channel is connected to by the second trepanning with hydraulic control one-way valve.The column of the present invention, which stops contracting valve, to restore use to the internal leakage column generated at piston seal, can also be matched with intact big column, fundamentally solve the problems, such as that the piston seal abrasion of big column and cylinder barrel abrasion increase generated internal leakage.
Description
Technical field
The invention belongs to coal mine machinery technical field, it is related to a kind of column and stops contracting valve.
Background technology
Often there is big column after the operation of long-term and big load in the comprehensive mining hydraulic bracket of coal mining supporting
Piston seal also will appear cylinder barrel abrasion increase and lead to the problem of internal leakage, cause because abrasion leads to the problem of internal leakage
The enabling capabilities of hydraulic support decline, and solution is the intact big column of replacement, the problem is that, it needs to replace at the scene
Big column, hidden danger is more, and labor intensity is big.
Being disclosed in the information of the background technology part, it is only intended to increase understanding of the overall background of the invention, without answering
It has been the prior art well known to persons skilled in the art when being considered as recognizing or imply that the information is constituted in any form.
Invention content
The purpose of the present invention is to provide a kind of columns to stop contracting valve, to overcome the piston of the big column of the prior art easily to grind
Damage, the problem that hidden danger is more, labor intensity is big when scene is replaced.
To achieve the above object, the present invention provides a kind of columns to stop contracting valve, including：Valve casing；Valve seat, valve seat and valve casing phase
Connection；Safety valve, safety valve are screwed in the endoporus of valve seat, and safety valve is fastened in valve casing；Hydraulic control one-way valve, hydraulic control list
It is fastened by bolts on valve casing to valve, there are three sealing rings for setting at the faying face of hydraulic control one-way valve and valve casing；First is logical
The one end in road, first passage is connected to safety valve, and the other end of first passage is connected to by the first trepanning with hydraulic control one-way valve；The
One external hole, the first external hole are set on valve casing；And second channel, second channel are connected to the first external hole, second is logical
Road is connected to by the second trepanning with hydraulic control one-way valve.
In a preferred embodiment, only contracting valve further includes column：Second external hole, the second external hole are set to valve casing
On；Third channel, third channel are connected to the second external hole, and third channel is connected to by third trepanning with hydraulic control one-way valve.
In a preferred embodiment, hydraulic control one-way valve includes：Plug, plug are set to the side of hydraulic control one-way valve,
Throttle orifice is provided in plug.
In a preferred embodiment, valve seat includes：First screw thread, the first screw thread are set to the inside of valve seat；Endoporus,
Endoporus is matched with safety valve；Second screw thread, the second screw thread are set on the outside of valve seat, the interface thread phase of the second screw thread and valve casing
Cooperation；Annular groove, annular groove are opened on the outside of valve seat, and annular groove is for accommodating sealing ring；4th trepanning, the 4th trepanning processing annular groove with
Between the bottom hole of first screw thread.
In a preferred embodiment, the first external hole and the epicoele orifice of big column only to be contracted, outside first
It connects hole to be connected with the second trepanning in hydraulic control one-way valve by the 5th trepanning and second channel, the second external hole and only be contracted
The cavity of resorption orifice of the manipulation valve of big column, the second external hole pass through third channel and the third trepanning phase in hydraulic control one-way valve
It connects.
Compared with prior art, the present invention has the advantages that：
The present invention provides a kind of columns to stop contracting valve, stops the return-stopping function in contracting valve to working solution using the column and is more than
Rated pressure can by feature, by former column it is unidirectional it is shrinkproof be modified to two-way shrinkproof, the two-way cylinder of former column is transformed
It is utilized at the extraordinary oil cylinder of two-way cylinder and one-way cylinder dual-purpose, to prevent big column cylinder abrasion to increase and close
Envelope abrasion leads to the problem of internal leakage, eliminates scene and replaces big this working link of column, saves manpower and materials.From root
Solve the problems, such as that the piston seal abrasion of big column generates internal leakage and cylinder barrel abrasion increases generation internal leakage in sheet
Problem.
Description of the drawings
Fig. 1 is the schematic structural cross-sectional view that column according to the present invention stops contracting valve.
Fig. 2 is the schematic structural cross-sectional view of valve seat according to the present invention.
Fig. 3 is the hydraulic schematic according to the present invention for being provided with column and stopping contracting valve.
Specific implementation mode
Below in conjunction with the accompanying drawings, the specific implementation mode of the present invention is described in detail, it is to be understood that the guarantor of the present invention
Shield range is not restricted by specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " comprising " or its change
It changes such as "comprising" or " including " etc. and will be understood to comprise stated element or component, and do not exclude other members
Part or other component parts.
Shown in Fig. 1-2, column according to the preferred embodiment of the present invention stops contracting valve and includes：First passage 2, valve casing 3, second
Channel 6, safety valve 7, valve seat 8, the first external hole 10 and hydraulic control one-way valve 13.Wherein, valve casing 3 is connect with valve seat 8.Safety valve 7
It is screwed in the endoporus 24 of valve seat 8, and safety valve 7 is fastened in valve casing 3, and is assembled respectively in each gap location for generating pressure difference
There are sealing A, B and C.Hydraulic control one-way valve 13 is fastened on by bolt 16 on valve casing 3, in the combination of hydraulic control one-way valve 13 and valve casing 3
There are three sealing ring D for setting at face.One end of first passage 2 is connected to safety valve 7, and the other end of first passage 2 passes through first
Trepanning 1 is connected to hydraulic control one-way valve 13.First external hole 10 is set on valve casing 3.Second channel 6 and the first external hole 10 connect
Logical, second channel 6 is connected to by the second trepanning 15 with hydraulic control one-way valve 13.
In said program, column stops contracting valve and further includes：Second external hole 4 and third channel 5, wherein the second external hole 4 is set
It is placed on valve casing 3, third channel 5 is connected to the second external hole 4, and third channel 5 passes through third trepanning 14 and hydraulic control one-way valve 13
Connection.Hydraulic control one-way valve 13 includes：Plug 11, plug 11 are set to the side of hydraulic control one-way valve 13, are provided in plug 11
Throttle orifice 12.Liquid is released using the superpressure of safety valve 7, the unlatching of 13 internal check valve of hydraulic control one-way valve is controlled, utilizes throttle orifice 12
Leakage, place has occurred and that the big column of piston seal leakage failure not at the return of check valve to constitute a kind of can guarantee
The column declined again stops contracting valve.Due to being machined with throttle orifice 12 in the plug 11 of hydraulic control one-way valve 13, for stopping pressure
When oil supply, the residual voltage of existing emulsion between plug 11 and the valve piston that is in contact makes valve piston return, to realize second
The locking of 6 inner fluid of external hole 4 and second channel.
Valve seat 8 includes：First screw thread 19, the second screw thread 20, the 4th trepanning 21, annular groove 22 and endoporus 24.Wherein, the first spiral shell
Line 19 is set to the inside of valve seat, and endoporus 24 is matched with safety valve 7, and endoporus 24 matches with the outer diameter of safety valve 7, and is led to
Cross the leakage that sealing B eliminates the gap.Second screw thread 20 is set to the outside of valve seat 8, the interface spiral shell of the second screw thread 20 and valve casing 3
Line matches.Annular groove 22 is opened in the outside of valve seat 8, and annular groove 22 is for accommodating sealing ring, and by being assemblied at annular groove 22
C is sealed to eliminate the leakage of the gap location.4th trepanning 21 is processed between annular groove 33 and the bottom hole of the first screw thread 19.Outside first
The epicoele orifice of big column for connecing hole 10 and only being contracted, the first external hole 10 by the 5th trepanning 18 and second channel 6 with
The second trepanning 15 in hydraulic control one-way valve 13 is connected, and the second external hole 4 and the cavity of resorption of the manipulation valve of the big column only to be contracted connect
Mouth connection, the second external hole 4 are connected by third channel 5 and the third trepanning 14 in hydraulic control one-way valve.
The present invention column stop contracting valve operation principle be：As shown in figure 3, column, which is stopped contracting valve 111, is serially connected in big column
Epicoele interface 112 and between manipulating valve interface 113, reciprocating operation, which manipulates valve, can realize the liter and drop of big column.And
It can work under three kinds of situations：(1) when letting out situation in column generation, piston retraction moves down, the emulsion warp of leakage
The epicoele interface of big column and the first external hole 10 enter in hydraulic control one-way valve 13, due to the third being connected with the second external hole 4
Hydraulic coupling is not present in channel 5, the check valve in hydraulic control one-way valve 13 cannot be opened, and the emulsion of leakage is blocked and cannot return
Stream makes piston stop bouncing back and generates support force.(2) when being let out into setting prop situation in column generation, due to hydraulic control one-way valve
Check valve in 13 cannot be opened, and the emulsion of leakage is blocked and cannot flow back, and column will be with the section of column piston rod
Product is that effective bearing area generates upward setting load, and still, big column setting load can reduce by 12% or so.(3) when column
When piston seal is intact, in the setting prop stage, the emulsion of upper intracavitary makes pressure rise because cannot directly flow back to and manipulate valve, when this
After pressure rise to 7 rated pressure of safety valve, safety valve 7 is opened, and the emulsion with pressure of spilling is through first passage 2 and the first trepanning
1 enters the valve piston chamber of hydraulic control one-way valve 13, pushes valve piston and mandril to move to right, pushes check valve open, make the emulsion of intracavitary
Pass through the first external hole 10, the 5th trepanning 18, second channel, the second trepanning 15, third trepanning 14, third channel 5 and the respectively
Two external holes 4 return to the interface for the decline for manipulating valve, and intact big column is made to generate setting load.
The emulsion that the column of the present invention stops intracavitary on contracting valve column both has return-stopping function, and it is more than specified pressure also to have
The passable feature of power, make column stop contracting valve can at piston seal generate internal leakage column restore use, also can with it is complete
Good big column matches.
The description of the aforementioned specific exemplary embodiment to the present invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed
And variation.The purpose of selecting and describing the exemplary embodiment is that explaining the specific principle of the present invention and its actually answering
With so that those skilled in the art can realize and utilize the present invention a variety of different exemplary implementation schemes and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (5)
1. a kind of column stops contracting valve, which is characterized in that the column stops contracting valve and includes：
Valve casing；
Valve seat, the valve seat are connected with the valve casing；
Safety valve, the safety valve are screwed in the endoporus of the valve seat, and the safety valve is fastened in the valve casing；
Hydraulic control one-way valve, the hydraulic control one-way valve are fastened by bolts on the valve casing, the hydraulic control one-way valve with it is described
There are three sealing rings for setting at the joint surface of valve casing；
First passage, one end of the first passage are connected to the safety valve, and the other end of the first passage passes through first
Trepanning is connected to the hydraulic control one-way valve；
First external hole, first external hole are set on the valve casing；And
Second channel, the second channel are connected to first external hole, the second channel by the second trepanning with it is described
Hydraulic control one-way valve is connected to.
2. column according to claim 1 stops contracting valve, which is characterized in that the column stops contracting valve and further includes：
Second external hole, second external hole are set on the valve casing；And
Third channel, the third channel are connected to second external hole, the third channel by third trepanning with it is described
Hydraulic control one-way valve is connected to.
3. column according to claim 1 stops contracting valve, which is characterized in that the hydraulic control one-way valve includes plug, described stifled
Head is set to the side of the hydraulic control one-way valve, and throttle orifice is provided in the plug.
4. column according to claim 1 stops contracting valve, which is characterized in that the valve seat includes：
First screw thread, first screw thread are set to the inside of the valve seat；
Endoporus, the endoporus are matched with the safety valve；
Second screw thread, second screw thread are set on the outside of the valve seat, the interface thread of second screw thread and the valve casing
It matches；
Annular groove, the annular groove are opened on the outside of the valve seat, and the annular groove is for accommodating sealing ring；And
4th trepanning, the 4th trepanning processing is between the annular groove and the bottom hole of first screw thread.
5. column according to claim 2 stops contracting valve, which is characterized in that first external hole and the big column only to be contracted
Epicoele orifice, first external hole passes through the 5th trepanning and second channel and described the in the hydraulic control one-way valve
Two trepannings are connected, the cavity of resorption orifice of the manipulation valve of second external hole and the big column only to be contracted, and described the
Two external holes are connected by the third channel and the third trepanning in the hydraulic control one-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810418609.9A CN108590718B (en) | 2018-05-04 | 2018-05-04 | Column shrinkage-proof valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810418609.9A CN108590718B (en) | 2018-05-04 | 2018-05-04 | Column shrinkage-proof valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108590718A true CN108590718A (en) | 2018-09-28 |
| CN108590718B CN108590718B (en) | 2020-01-31 |
Family
ID=63619751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810418609.9A Active CN108590718B (en) | 2018-05-04 | 2018-05-04 | Column shrinkage-proof valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108590718B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6073654A (en) * | 1998-03-28 | 2000-06-13 | Dbt Deutsche Bergbau-Technik Gmbh | Hydraulically trippable check valve for underground mine support hydraulics |
| CN102191944A (en) * | 2011-05-09 | 2011-09-21 | 巨隆集团芜湖兴隆液压有限公司 | Inserted medium flow upright post hydraulic control one-way valve |
| CN202064971U (en) * | 2011-05-09 | 2011-12-07 | 巨隆集团芜湖兴隆液压有限公司 | Plug-in medium flow column pilot operated check valve |
| CN204002865U (en) * | 2014-08-21 | 2014-12-10 | 浙江衢州巨升煤矿机械有限公司 | A kind of hydraulic control one-way valve and the hydraulic support column column cap being mated |
| CN107882817A (en) * | 2016-09-30 | 2018-04-06 | 王换春 | A kind of fluid pressure type reversible lock |
| CN207278280U (en) * | 2017-09-18 | 2018-04-27 | 巨隆集团芜湖兴隆液压有限公司 | Hydraulic control one-way valve |
-
2018
- 2018-05-04 CN CN201810418609.9A patent/CN108590718B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6073654A (en) * | 1998-03-28 | 2000-06-13 | Dbt Deutsche Bergbau-Technik Gmbh | Hydraulically trippable check valve for underground mine support hydraulics |
| CN102191944A (en) * | 2011-05-09 | 2011-09-21 | 巨隆集团芜湖兴隆液压有限公司 | Inserted medium flow upright post hydraulic control one-way valve |
| CN202064971U (en) * | 2011-05-09 | 2011-12-07 | 巨隆集团芜湖兴隆液压有限公司 | Plug-in medium flow column pilot operated check valve |
| CN204002865U (en) * | 2014-08-21 | 2014-12-10 | 浙江衢州巨升煤矿机械有限公司 | A kind of hydraulic control one-way valve and the hydraulic support column column cap being mated |
| CN107882817A (en) * | 2016-09-30 | 2018-04-06 | 王换春 | A kind of fluid pressure type reversible lock |
| CN207278280U (en) * | 2017-09-18 | 2018-04-27 | 巨隆集团芜湖兴隆液压有限公司 | Hydraulic control one-way valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108590718B (en) | 2020-01-31 |
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