CN106151566B - A kind of core assembly of flexible sealing structure - Google Patents
A kind of core assembly of flexible sealing structure Download PDFInfo
- Publication number
- CN106151566B CN106151566B CN201610759979.XA CN201610759979A CN106151566B CN 106151566 B CN106151566 B CN 106151566B CN 201610759979 A CN201610759979 A CN 201610759979A CN 106151566 B CN106151566 B CN 106151566B
- Authority
- CN
- China
- Prior art keywords
- valve sleeve
- spool
- sleeve
- ring
- upper valve
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 125000004122 cyclic group Chemical group 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000002788 crimping Methods 0.000 claims description 3
- 238000007373 indentation Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000712 assembly Effects 0.000 abstract description 2
- 238000000429 assembly Methods 0.000 abstract description 2
- 239000003245 coal Substances 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
-
- 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)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lift Valve (AREA)
- Valve Housings (AREA)
Abstract
The present invention relates to a kind of core assemblies of flexible sealing structure, through-hole always is offered in the screw plug, upper valve sleeve one end is internally provided with the cavity for accommodating back liquid valve rod, the other end is internally provided with the cavity for accommodating spool, upper valve sleeve one end is inserted into the through-hole of screw plug, and upper valve sleeve be inserted into the part inside the through-hole be and the consistent column structure of the through-hole aperture, one end bottom for returning liquid valve rod is provided with a groove, the body of rod side for returning liquid valve rod is provided with a duct, the duct is connected to groove, liquid valve rod is returned to be mounted on inside upper valve sleeve, lower valve sleeve and upper valve sleeve are tightly connected, spool is inserted into the inside of lower valve sleeve and upper valve sleeve, spring is provided between spool and lower valve sleeve.The present invention ensure that the leakproofness at valve base sealing, increase the service life of spool, provide reliable guarantee for downhole safety production by increasing a set of compliant mechanism on spool.
Description
Technical field
The invention belongs to hydraulicdirectional control valve fields, and in particular to a kind of manual core assembly.
Background technique
As the large-scale implementation and development, requirement of the working face to hydraulic support of coal mine fully-mechanized mining hydraulic support are also got over
Come stringenter, thus has further requirement to the safety valve of protective cradle hydraulic cylinder, especially safety valve is made
Have with life and reliability and further requires, when the pressure at the top of hydraulic support is caused by power, safety valve energy
It is no in the case where bearing high pressure, short time substantially stabilized off-load in time directly affects the service life and supporting peace of bracket
Entirely.It can not only damage sealing element, pipeline and Hydraulic Elements, but also can cause vibration and noise；Sometimes make certain pressure controls
The Hydraulic Elements of system generate error.
Currently, critical elements of the core assembly as mine down-hole coal excavation apparatus, leakproofness directly influence down-hole coal excavation
The safety and manufacturing schedule of production.Since a valve seat is generally fitted between two valve pockets on core assembly, and
Valve seat is generally made of polyether-ether-ketone, due to being to be sealed between valve seat and spool by point or linear sealing form, generally
After a period of use, since dust can more or less enter in spool, cause valve seat sealing the joint serious wear, lead
It causes seal spool to reduce, has seriously affected the production efficiency of down-hole coal excavation apparatus.
Summary of the invention
The purpose of the present invention is to provide a kind of core assemblies of flexible sealing structure.The present invention on spool by increasing
A set of compliant mechanism ensure that the leakproofness at valve base sealing, increase the service life of spool, provide for downhole safety production
Reliable guarantee.
The technical solution adopted by the present invention: a kind of core assembly of flexible sealing structure, it includes screw plug, upper valve sleeve, returns
Liquid valve rod, spool, valve seat, lower valve sleeve and spring offer through-hole always in the screw plug, and upper valve sleeve one end is internally provided with
For accommodating back the cavity of liquid valve rod, the other end is internally provided with the cavity for accommodating spool, and upper valve sleeve one end is inserted into spiral shell
In stifled through-hole, and upper valve sleeve be inserted into the part inside the through-hole be with the consistent column structure of the through-hole aperture, return
One end bottom of liquid valve rod is provided with a groove, and the body of rod side for returning liquid valve rod is provided with a duct, and the duct and groove connect
It is logical, it returns liquid valve rod and is mounted on inside upper valve sleeve, lower valve sleeve and upper valve sleeve are tightly connected, and spool is inserted into lower valve sleeve and upper valve sleeve
Inside is provided with spring between spool and lower valve sleeve；
It further include a flexible clamping mechanism, the flexibility clamping mechanism is sleeved on spool, and flexible clamping mechanism side
With valve seat apical grafting.
Further, one cyclic structure of radial protrusion in the middle part of the spool is provided with screw thread in the cyclic structure, in ring
An annular groove is provided on the spool of shape structure side；
The flexibility clamping mechanism is made of snap ring, flexible seals and retaining ring, and wherein the inside of snap ring one end is equipped with one
Section threaded connection section, middle part are equipped with one section of internal diameter crimping planar section bigger than the internal diameter of the threaded connection section, the snap ring other end
A raised bulge loop, the flexible seals are mounted in the annular groove radially inward, by shield ring sleeve on spool and with
Flexible seals compress connection, and snap ring is threadedly coupled with spool, and the bulge loop on snap ring is tightly solid by flexible seals and retaining ring
It is scheduled on spool；
The valve seat is mounted between lower valve sleeve and upper valve sleeve, and the valve seat is pushed up close to one lateral edge axial projection one of internal diameter
Ring, the apical ring and retaining ring, which compress, to be connected.
Further, the junction between lower valve sleeve and upper valve sleeve, the outer ring turning of the valve seat is arranged in the valve seat
Place is provided with one first notch, and the first indentation, there between the lower valve sleeve and valve seat is provided with an O sealing ring.
Further, the junction of the lower valve sleeve and upper valve sleeve is keyed by steel wire.
Further, the valve seat is steel structure.
The present invention compared with prior art the beneficial effect is that: the present invention passes through on the original basis of traditional valve core component
On, flexible clamping mechanism is increased inside it, so that the junction of spool and valve seat forms a buffer gear, is increased simultaneously
Sealing performance of the spool at docking；The present invention has changed the valve seat in core assembly into steel material by traditional soft material
Material, increases the service life of spool.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
As shown in Figure 1, a kind of core assembly of flexible sealing structure, it includes screw plug 1, upper valve sleeve 2, returns liquid valve rod 3, valve
Core 4, valve seat 5, lower valve sleeve 6 and spring 7 offer through-hole 8 always in the screw plug 1, and 2 one end of upper valve sleeve is internally provided with use
In the cavity for accommodating back liquid valve rod 3, the other end is internally provided with the cavity for accommodating spool 4, and 2 one end of upper valve sleeve is inserted into spiral shell
In stifled 1 through-hole 8, and upper valve sleeve 2 be inserted into the part through-hole 8 inside for and the consistent cylinder knot in 8 aperture of through-hole
Structure 9, one end bottom for returning liquid valve rod 3 are provided with a groove 10, and the body of rod side for returning liquid valve rod 3 is provided with a duct 11, described
Duct 11 is connected to groove 10, is returned liquid valve rod 3 and is mounted on inside upper valve sleeve 2, and lower valve sleeve 6 and upper valve sleeve 2 are tightly connected, spool 4
It is inserted into the inside of lower valve sleeve 6 Yu upper valve sleeve 2, spring 7 is provided between spool 4 and lower valve sleeve 6；It further include that a flexible card picks
Structure, the flexibility clamping mechanism is sleeved on spool 4, and flexible clamping mechanism side and 5 apical grafting of valve seat.
4 middle part radial protrusion of spool, one cyclic structure 12 is provided with screw thread 13 in the cyclic structure 12, in ring-type
An annular groove 14 is provided on the spool 4 of 12 side of structure；
The flexibility clamping mechanism is made of snap ring 15, flexible seals 17 and retaining ring 16, and wherein 15 one end of snap ring is interior
Portion is equipped with one section of threaded connection section, and middle part is equipped with one section of internal diameter crimping planar section 18 bigger than the internal diameter of the threaded connection section,
A raised bulge loop 19, the flexible seals 17 are mounted in the annular groove 14, will keep off 15 other end of snap ring radially inward
Circle 16 is sleeved on spool 4 and compresses with flexible seals 17 and connects, and snap ring 15 is connect with 4 screw thread 13 of spool, and on snap ring 15
Bulge loop 19 flexible seals 17 and retaining ring 16 are tightly secured on spool 4；
The valve seat 5 is mounted between lower valve sleeve 6 and upper valve sleeve 2, and the valve seat 5 is close to one lateral edge axial projection of internal diameter
One apical ring 20, the apical ring 20 is compressed with retaining ring 16 to be connected.
The junction between lower valve sleeve 6 and upper valve sleeve 2, the outer ring corner setting of the valve seat 5 is arranged in the valve seat 5
There is one first notch 21, is provided with an O sealing ring at the first notch 21 between the lower valve sleeve 6 and valve seat 5.
The lower valve sleeve 6 is connect with the junction of upper valve sleeve 2 by steel wire key 22.The valve seat 5 is using 9Cr18 system
At steel structure.
Claims (4)
1. a kind of core assembly of flexible sealing structure, it includes screw plug, upper valve sleeve, returns liquid valve rod, spool, valve seat, lower valve sleeve
And spring, which is characterized in that through-hole always is offered in the screw plug, upper valve sleeve one end is internally provided with for accommodating back liquid
The cavity of valve rod, the other end are internally provided with the cavity for accommodating spool, and upper valve sleeve one end is inserted into the through-hole of screw plug, and
Upper valve sleeve is inserted into the part inside the through-hole
Portion is provided with a groove, and the body of rod side for returning liquid valve rod is provided with a duct, and the duct is connected to groove, returns the installation of liquid valve rod
Inside upper valve sleeve, lower valve sleeve and upper valve sleeve are tightly connected, and spool is inserted into the inside of lower valve sleeve and upper valve sleeve, spool and lower valve
Spring is provided between set；
It further include a flexible clamping mechanism, the flexibility clamping mechanism is sleeved on spool, and flexible clamping mechanism side and valve
Seat apical grafting；
One cyclic structure of radial protrusion in the middle part of the spool is provided with screw thread in the cyclic structure, in cyclic structure side
An annular groove is provided on spool；
The flexibility clamping mechanism is made of snap ring, flexible seals and retaining ring, and wherein the inside of snap ring one end is equipped with one section of spiral shell
Line linkage section, middle part are equipped with one section of internal diameter crimping planar section bigger than the internal diameter of the threaded connection section, and the snap ring other end is along diameter
To an inwardly protruding bulge loop, the flexible seals are mounted in the annular groove, by shield ring sleeve on the spool and with flexibility
Sealing element compresses connection, and snap ring is threadedly coupled with spool, and flexible seals and retaining ring are tightly secured in by the bulge loop on snap ring
On spool；
The valve seat is mounted between lower valve sleeve and upper valve sleeve, the valve seat close to one lateral edge axial projection of internal diameter, one apical ring,
The apical ring and retaining ring, which compress, to be connected.
2. a kind of core assembly of flexible sealing structure according to claim 1, which is characterized in that the valve seat setting exists
Junction between lower valve sleeve and upper valve sleeve, the outer ring corner of the valve seat are provided with one first notch, the lower valve sleeve with
The first indentation, there between valve seat is provided with an O sealing ring.
3. a kind of core assembly of flexible sealing structure according to claim 1, which is characterized in that the lower valve sleeve with it is upper
The junction of valve pocket is keyed by steel wire.
4. a kind of core assembly of flexible sealing structure according to claim 1, which is characterized in that the valve seat is steel
Matter structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610759979.XA CN106151566B (en) | 2016-08-30 | 2016-08-30 | A kind of core assembly of flexible sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610759979.XA CN106151566B (en) | 2016-08-30 | 2016-08-30 | A kind of core assembly of flexible sealing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106151566A CN106151566A (en) | 2016-11-23 |
| CN106151566B true CN106151566B (en) | 2019-01-08 |
Family
ID=57344128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610759979.XA Active CN106151566B (en) | 2016-08-30 | 2016-08-30 | A kind of core assembly of flexible sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106151566B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109434456A (en) * | 2018-12-27 | 2019-03-08 | 凡尔机械集团有限公司 | A kind of Novel valve core component and its assembly technology |
| CN111336148B (en) * | 2020-03-24 | 2022-10-11 | 北京天玛智控科技股份有限公司 | Valve sleeve, valve core assembly and reversing valve |
| CN114059318A (en) * | 2020-08-04 | 2022-02-18 | 青岛海尔滚筒洗衣机有限公司 | Case structure, centrifugal valve and washing machine |
| CN114508518A (en) * | 2021-07-20 | 2022-05-17 | 上海大屯能源股份有限公司江苏分公司 | Split type hydraulic reversing valve thread plug |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2615914A1 (en) * | 1987-06-01 | 1988-12-02 | Moselle Ateliers Chantiers | Hydraulic or pneumatic jack equipped with a rapidly dismantlable sealing bearing |
| US5950673A (en) * | 1997-12-09 | 1999-09-14 | Joy Mm Delaware, Inc. | Valves |
| CN103510970B (en) * | 2013-09-27 | 2015-09-23 | 巨隆集团芜湖兴隆液压有限公司 | A kind of core assembly for colliery comprehensive mining hydraulic bracket reversal valve |
| CN203962006U (en) * | 2014-06-30 | 2014-11-26 | 山西平阳广日机电有限公司 | Manual backwashing filter device core assembly |
| CN205400763U (en) * | 2016-02-14 | 2016-07-27 | 乐清市东风煤矿设备有限公司 | Reversing valve |
| CN206054781U (en) * | 2016-08-30 | 2017-03-29 | 山西平阳广日机电有限公司 | A kind of core assembly of flexible sealing structure |
-
2016
- 2016-08-30 CN CN201610759979.XA patent/CN106151566B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106151566A (en) | 2016-11-23 |
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