CN106321130A - Connecting rod reinforcement structure for caving top coal hydraulic support - Google Patents
Connecting rod reinforcement structure for caving top coal hydraulic support Download PDFInfo
- Publication number
- CN106321130A CN106321130A CN201610916860.9A CN201610916860A CN106321130A CN 106321130 A CN106321130 A CN 106321130A CN 201610916860 A CN201610916860 A CN 201610916860A CN 106321130 A CN106321130 A CN 106321130A
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- hydraulic cylinder
- connecting rods
- hydraulic
- hydraulic support
- 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.)
- Pending
Links
- 239000003245 coal Substances 0.000 title claims abstract description 13
- 230000002787 reinforcement Effects 0.000 title abstract 3
- 230000033001 locomotion Effects 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000003068 static effect Effects 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 238000005086 pumping Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241000009298 Trigla lyra Species 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
-
- 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
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/0418—Positioning devices and stabilizing means for the props
-
- 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)
- Architecture (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
A connecting rod reinforcement structure for a caving top coal hydraulic support comprises a top plate and a base, wherein connecting holes are formed in upper connecting rods and lower connecting rods of a connecting rod mechanism; the connecting holes in the upper parts of the upper connecting rods are connected to the top plate through column head pins; multiple groups of upper connecting rods and lower connecting rods are connected through a middle connecting plate by the aid of the connecting holes in the upper connecting rods and the lower connecting rods and can be folded angularly, the connecting hole of one group of the upper connecting rod and lower connecting rod is connected with the top of a piston rod of a hydraulic cylinder, and the hydraulic cylinder and the connecting holes in the lower connecting rod are connected with the base through a pin. The connecting rod reinforcement structure for the caving top coal hydraulic support has the advantages as follows: when the hydraulic cylinder extends and the top plate rises, the hydraulic cylinder pushes the connecting rods to move until the upper and lower connecting rods are located in one straight line, the structure is in a working state, the connecting rod motion is in a dead point state, multiple H-shaped supports are formed, a self-locking state is formed, high-strength static load and impact load can be borne, the hydraulic cylinder is not affected by load, and the service life is prolonged.
Description
Technical field
The present invention is a kind of caving roof coal hydraulic support bar boosting structure.
Background technology
China started to develop hydraulic support in 1964, successively trial-production JMZ-128 type, 7Z type, BZZC type, WMK-400
The hydraulic support of the various ways such as type, DM-400 type, YZ type, ZYZ type, ZY type, and open Luan, Datong District, Yangquan, Hebi, Xuzhou,
The offices such as copper state, Yima, the Huaibei are tested and have been used, and achieve preferable effect.Since 1974, from Germany, Britain, Soviet Union
The states such as connection and Poland have introduced the hydraulic support of many different types.
In order to improve the supporting performance of support, improve its adaptability to mining geology condition, expand range, extend
In service life, current hydraulic support is by the developments of following several respects:
Greatly developing protected type and chock shield, should gradually reduce the support of other forms, reason is these supports
Mainly use quadric chain, make the distance between two ends and matchmaker's wall be held essentially constant;Pillar props up on back timber, improves support
Working resistance;Back timber and caving shield are hinged, avoid the trigonum produced between the two;The girder part of caving shield and back timber
All install side guard plate, improve the protective capacities of support；Use overall automatic moving type, be easy to support operation and realization automatically controls.
The development further of hydraulic support is the problem solving emphatically to expand range, adapts to for expanded stent meanwhile
Altitude range, widely used double telescopic and band machinery lengthening section columns.
Using high-pressure emulsification liquid pump, to improve the setting load of support, the pump station pressure that a lot of countries use is public to reach 300
Jin/more than cm.In order to simplify support pipe-line system and be easily installed operation, begin with " multi-core pipe " pilot-operated type adjacent-support control
Maneuverability pattern.
Existing low caving coal hydraulic support, hydraulic support foundation support section is made up of four root posts, and column is carrying
The critical component of roof pressure, Main Function supports top board, it is ensured that ventilation good below top board and work space, makes coal mining
Everything goes well with your work is carried out, and facilitates workman that equipment is carried out maintenance maintenance.Continuous along with the development of coal industry and automaticity
Improve, more and more stricter to intensity, adaptability, stability and the sealing requirements of hydraulic support.Four-leg shock hydraulic pressure props up
The stress of frame is the most unbalanced, there is also supporting efficiency low, it is impossible to adapt to the problems such as various working environments simultaneously.And no matter
Which kind of state column support is in and remains at the duty of high capacity, and this substantially reduces the service life of column, increases
Add cost.
Former low caving coal hydraulic support upright supports part is mainly by load assembly, actuator cylinder, portion of control unit, auxiliary
Device, hydraulic fluid is helped to form.Hydraulic support, with highly pressurised liquid for power stretching by various actuator cylinders, makes support complete
Rise, land, walk and elapse the various actions such as transporter, in order to support work surface constantly advance and repeatedly support, move forward and
Adjust.
Forwarding to drop post position when handling valve, when opening supplying valve, highly pressurised liquid is entered column by main oil inlet pipe through handling valve
Rod end chamber, simultaneously also into the control piper of hydraulic control one-way valve, opens hydraulic control one-way valve, and the fluid of column plunger shaft is through oil
Pipe, hydraulic control one-way valve and manipulation valve, flow back to main liquid back pipe, and column unloading declines.The main production process of fully-mechanized mining working is adopted
Coal, shifting frame and pushing and sliding.The various combination order of 3 operations, can form the some support mode of hydraulic support, thus determine work
The different Matching Relationships in face " three machines ".
Hydraulic support in the course of the work, is not only wanted reliable roof supporting, is safeguarded certain trouble free service space, and
To carry out moving frame and moving conveyor with the propelling of work surface.Therefore, support ascending, descending to be realized, push away, move four basic actss,
These actions are the highly pressurised liquids utilizing pumping plant to supply, and are completed by several hydraulic cylinders that job specification is different.
During liter frame, contact top board from back timber, gradually rise to pumping plant operating pressure to column cavity of resorption fluid pressure
Only, for just supportting the stage.When just the support stage ends, the support force that top board is produced by support is referred to as just power.The size of setting load depends on
In pumping plant operating pressure, column cylinder diameter and column quantity.Bigger setting load can prevent from directly pushing up the absciss layer because of sinking prematurely,
Slow down the subsidence velocity of top board, increase its stability.Generally improve setting load, Yi Mianli by the way improving pumping plant operating pressure
Post cylinder diameter is excessive.
Summary of the invention
The purpose of the present invention solving the problem existing for above-mentioned low caving coal hydraulic support, it is provided that a kind of column that makes
Dead load and dynamic loading suffered by hydraulic jack are the least, substantially increase column hydraulic jack service life and
Save the caving roof coal hydraulic support bar boosting structure of maintenance cost.
The present invention is achieved in that and includes top board, base, and the upper connecting rod of linkage, lower link are respectively provided with connecting hole,
The top connecting hole of upper connecting rod is connected on top board by stigma bearing pin, and the connecting hole of upper connecting rod, the connecting hole of lower link pass through
Middle part connecting plate makes connecting rod, lower link on some groups be connected with each other, and can be folded into angle, the company of connecting rod, lower link in one of which
Connecing hole to be connected with the piston rod part of hydraulic cylinder, hydraulic cylinder, the connecting hole of lower link connect base by bearing pin.
Advantages of the present invention: formed truss by multiple connecting rods hinged with hydraulic cylinder, by the telescopic band of hydraulic cylinder
Dynamic link motion, completes top board elevating movement.When hydraulic cylinder shrinks, top board declines, for off position；When hydraulic cylinder extends
Top board rises, and during Hydraulic Cylinder link motion position in alignment to upper and lower strut, for duty, this state is connecting rod
The dead point of motion, supports in several H types, for self-locking state, can bear dead load and the shock loading of high intensity, and hydraulic cylinder is not
Loaded, improve service life, saved the cost of maintenance maintenance, four original posts be changed to the hydraulic cylinder of ting model, also
Save manufacturing cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention:
The present invention is further described with embodiment below in conjunction with the accompanying drawings: includes top board 2, base 5, the upper connecting rod of linkage 3
3-1, lower link 3-2 are respectively provided with connecting hole, and the top connecting hole of upper connecting rod 3-1 is connected on top board 2 by stigma bearing pin 1, on
The connecting hole of connecting rod 3-1, the connecting hole of lower link 3-2 make connecting rod 3-1 on some groups, lower link 3-2 phase by middle part connecting plate 3-3
Connect, and can be folded into angle, connecting rod 3-1, the connecting hole of lower link 3-2 and the piston rod part of hydraulic cylinder 4 in one of which
Connecting, hydraulic cylinder 4, the connecting hole of lower link 3-2 connect base 5 by bearing pin 6.When hydraulic support is started working, hydraulic cylinder 4 is lived
Stopper rod stretches and heads on linkage 3 and move simultaneously, and top board 2 rises, linkage 3 when initial position, upper connecting rod 3-1, lower company
There is certain angle in bar 3-2, when moving to become straight line, is now hydraulic support duty, and linkage 3 moves
It is in dead point state, supports in several H types；Hydraulic cylinder 4 is the most loaded, is greatly improved the service life of hydraulic cylinder 4, joint
Maintenance cost about.Triangular structure is that hydraulic support provides more stable support, and stress steadily enables hydraulic support exist
Various ambient stables run.When needing unloading, hydraulic cylinder 4 shrinks, and top board 2 declines, it is achieved uninstall process.
Claims (1)
1. a caving roof coal hydraulic support bar boosting structure, it is characterised in that include top board, base, the upper company of linkage
Bar, lower link are respectively provided with connecting hole, and the top connecting hole of upper connecting rod is connected on top board by stigma bearing pin, the connection of upper connecting rod
Hole, the connecting hole of lower link make connecting rod, lower link on some groups be connected with each other by middle part connecting plate, and can be folded into angle, wherein
On one group, connecting rod, the connecting hole of lower link are connected with the piston rod part of hydraulic cylinder, and hydraulic cylinder, the connecting hole of lower link pass through pin
Axle connects base.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620487650 | 2016-05-26 | ||
| CN2016204876508 | 2016-05-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106321130A true CN106321130A (en) | 2017-01-11 |
Family
ID=57819176
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610916860.9A Pending CN106321130A (en) | 2016-05-26 | 2016-10-21 | Connecting rod reinforcement structure for caving top coal hydraulic support |
| CN201621143572.6U Expired - Fee Related CN206190303U (en) | 2016-05-26 | 2016-10-21 | Caving coal hydraulic support connecting rod reinforcement structure |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621143572.6U Expired - Fee Related CN206190303U (en) | 2016-05-26 | 2016-10-21 | Caving coal hydraulic support connecting rod reinforcement structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN106321130A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500128A (en) * | 2019-09-27 | 2019-11-26 | 中煤北京煤矿机械有限责任公司 | A kind of hydraulic support with six bar mechanism |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321130A (en) * | 2016-05-26 | 2017-01-11 | 辽宁工业大学 | Connecting rod reinforcement structure for caving top coal hydraulic support |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4662796A (en) * | 1983-02-16 | 1987-05-05 | Bennes Marrel | Supporting pillar for mines |
| DE3729609A1 (en) * | 1987-09-04 | 1989-03-16 | Kloeckner Becorit Gmbh | Powered face support |
| CN201496087U (en) * | 2009-08-26 | 2010-06-02 | 四川神坤装备股份有限公司 | Lift platform mechanism for hydraulic bracket with great mining height |
| CN102116164A (en) * | 2011-01-23 | 2011-07-06 | 湖南科技大学 | Temporary supporting device for roadway drifting |
| CN104373142A (en) * | 2014-10-30 | 2015-02-25 | 无锡华清煤矿机械制造有限公司 | Support for coal mine |
| CN206190303U (en) * | 2016-05-26 | 2017-05-24 | 辽宁工业大学 | Caving coal hydraulic support connecting rod reinforcement structure |
-
2016
- 2016-10-21 CN CN201610916860.9A patent/CN106321130A/en active Pending
- 2016-10-21 CN CN201621143572.6U patent/CN206190303U/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4662796A (en) * | 1983-02-16 | 1987-05-05 | Bennes Marrel | Supporting pillar for mines |
| DE3729609A1 (en) * | 1987-09-04 | 1989-03-16 | Kloeckner Becorit Gmbh | Powered face support |
| CN201496087U (en) * | 2009-08-26 | 2010-06-02 | 四川神坤装备股份有限公司 | Lift platform mechanism for hydraulic bracket with great mining height |
| CN102116164A (en) * | 2011-01-23 | 2011-07-06 | 湖南科技大学 | Temporary supporting device for roadway drifting |
| CN104373142A (en) * | 2014-10-30 | 2015-02-25 | 无锡华清煤矿机械制造有限公司 | Support for coal mine |
| CN206190303U (en) * | 2016-05-26 | 2017-05-24 | 辽宁工业大学 | Caving coal hydraulic support connecting rod reinforcement structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500128A (en) * | 2019-09-27 | 2019-11-26 | 中煤北京煤矿机械有限责任公司 | A kind of hydraulic support with six bar mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN206190303U (en) | 2017-05-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170111 |