CN205477694U - Adjustable flexible support - Google Patents
Adjustable flexible support Download PDFInfo
- Publication number
- CN205477694U CN205477694U CN201620006696.3U CN201620006696U CN205477694U CN 205477694 U CN205477694 U CN 205477694U CN 201620006696 U CN201620006696 U CN 201620006696U CN 205477694 U CN205477694 U CN 205477694U
- Authority
- CN
- China
- Prior art keywords
- back timber
- bottom girder
- tail end
- jack
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses an exploit an adjustable flexible support of big inclination coal seam working face, it is by constituting including back timber and floorbar, and set up the jack between back timber and the floorbar, the both ends of jack are respectively through connecting pin and back timber and floorbar swing joint, the tail end of back timber passes through connecting pin swing joint with the tail end of floorbar. The utility model discloses an adjustable flexible support simple structure, with low costs, characteristics such as that the installation is adjusted is convenient, low in labor strength and safe high efficiency.
Description
Technical field
This utility model relates to the support apparatus of large-inclination-angle coal bed mining work surface.
Background technology
The demand of coal in China is increasing at present, and corresponding coal mining the most more grows.Big inclined seam reserves account for China
The 8% of coal gross reserves, particularly in section, southwest, the mining area of 80% is composed has big inclined seam.For a long time, such coal
The exploitation of layer is extremely difficult, and efficiency is low, cost is high, and safe pressure is very big.Supporting to ultra-thin coal seam typically uses hole traditionally
Wooden support or two kinds of forms of individual prop supporting, but both support patterns all exist, and labor intensity is big, supporting intensity is low, peace
The full defects such as situation is poor, labor efficiency is low.
In recent years, along with the development of coal-mining technique, the deep inclined thin coal seam at some mines also uses to combine and adopts and high-grade conventional mining
Technology.But due to coal seam feature, in the traction of coal-winning machine, the installation of support, regulate, propelling aspect difficulty very, cause
Cost of winning is high, and labor intensity is big.Therefore for the exploitation of deep inclined thin coal seam, it is badly in need of a kind of new support equipment and solves
Problems faced.
Utility model content
It is complicated that deep inclined thin coal seam has geological structure, and ocurrence of coal seam is unstable, and the thickness change feature such as greatly, in order to solve mesh
The defects such as the labor intensity that front support pattern exists is big, supporting intensity is low, safe condition is poor, labor efficiency is low, this utility model
Provide a kind of simple in construction, low cost, installation is easy to adjust, labor intensity is low and adjustable flexibility support safely and efficiently.
This utility model is made up of back timber 1 and bottom girder 2, and arranges jack 3, institute between described back timber 1 and bottom girder 2
The upper/lower terminal stating jack 3 is flexibly connected with back timber 1 and bottom girder 2 respectively.Back timber 1 tail end is bent downwardly, bottom girder 2 tail
End upwarps, and the tail end of back timber is flexibly connected by connecting pin 4 with the tail end of bottom girder.
Adjustable flexibility support as above a kind of, illustrate further into, described back timber 1 tail end is bent downwardly, and bends
Being two sections, front end is first paragraph, and tail end is second segment, constitutes 165 ° to 175 ° angles between first paragraph and second segment；Bottom girder
(2) tail end upwarps, and is bent into three sections, and front end is first paragraph, and middle-end is second segment, and tail end is the 3rd section, wherein first paragraph
And constitute 110 ° to 120 ° angles between second segment, between first paragraph and the 3rd section, constitute 105 ° to 110 ° angles.
Adjustable flexibility support as above a kind of, illustrate further into, the upper end of jack 3 is supported on the second of back timber
Section, the lower end of jack is supported on the first paragraph of bottom girder.
Adjustable flexibility support as above a kind of, illustrate further into, be cased with sheath 6 outside described jack 3.
Adjustable flexibility support as above a kind of, illustrate further into, described back timber 1 and bottom girder 2 are provided with spiral shell
Bolt 5, is used for hanging steel wire rope.
Beneficial effect
Key component of the present utility model all passes through connecting pin active link, easy installation and removal；Jack soft readjustment can be passed through
Meet can not the demand in coal seam, back timber and bottom girder intensity are big, reduce labor intensity, it is ensured that run safely and efficiently.
Accompanying drawing explanation
Fig. 1 is this utility model structure chart.
Detailed description of the invention
The utility model is described in more detail with detailed description of the invention below in conjunction with the accompanying drawings.
As it is shown in figure 1, a kind of adjustable flexibility support described in the utility model includes back timber 1 and bottom girder 2, also include very heavy
Top 3, the two ends of described jack 3 are respectively by connecting pin 4 and back timber 1 and bottom girder 2 active link；Described back timber 1
The tail end of tail end and bottom girder 2 passes through connecting pin 4 active link.Back timber is designed as bending at 11# I-beam for mine one and makes, in bending
The both sides at place all devise reinforcement gusset, increase support space while ensureing supporting intensity as far as possible.Bottom girder uses " eight " word
Shape structure, is made for bending at 11# I-beam for mine two, all devises reinforcement gusset in the both sides of bending part, increases supporting empty
The stability of support is strengthened while between.Adjustable flexibility support of the present utility model has 3 connecting pins, lay respectively at top,
Bottom girder hinged place, jack and top, the hinged place of bottom girder.In the structure of adjustable flexibility support, connecting pin stress is relatively big, because of
This connecting pin all selects 40Cr to manufacture, and does modifier treatment.Each connecting pin is all respectively welded on top, bottom girder with iron chains, prevents
Connecting pin drops in transhipment, use process.
The model of jack is not limited fixed, illustrates here, its JLFDZ-16 as a example by JLFDZ-16 balance jack
The important technological parameters of balance jack be cylinder diameter/bar footpath be 100/60mm；Stroke is 210mm；Thrust
(31.5MPa)247KN；Maximum pressure 42Mpa.
Here the size of adjustable flexibility support is illustrated: be in minimum at support, back timber and bottom girder shape are at a certain angle,
With ensure single rack support supporting intensity, illustrate further into, between first paragraph and the second segment of back timber constitute 165 ° of angles.
Constitute 118 ° of angles between first paragraph and the second segment of bottom girder, constitute 110 ° of angles between first paragraph and the 3rd section, on the whole
From the point of view of, back timber and bottom girder constitute " C " font.And now the termination horizontal range of back timber and bottom girder is not less than 60mm,
To form enough coal spaces that slips；The jack upper link point horizontal range away from back timber termination should ensure that 800-1000mm, it is ensured that has
Enough support space and ventilation section personnel convenient to operate pass through and normal production work.Support is carried out by 6 framves/m in tunnel
Design, and when support reaches maximum height, the angle that top, bottom girder are formed must not have dead point, it is ensured that the height adjustability of support and
Support safety performance.
Further, in order to safety installed by adjustable flexibility support, described back timber 1 and bottom girder 2 are provided with bolt 5, group
Number is not limited fixed, here with set cap three groups, illustrates as a example by bottom girder two groups, and nut-welding is on back timber and bottom girder, and nut leads to
Cross tabletting to be connected with nut；Bolt is used for fixing steel wire rope, and wirerope diameter selects Φ 26, and all supports are connected by steel wire rope,
Define the supporting region of whole work surface, and monolithic push when realizing moving frame, safe and efficient, and single rack support has one
Fixed freely regulates spatial dimension, has adapted to the working depth demand that same work surface is different.
Further, back timber 1 and bottom girder 2 termination are circular shape, prevent the sharp corners of back timber termination from hurting sb.'s feelings, simultaneously in order to
It is easy to the support propelling in tunnel.
Further, when jack piston rod stretches out, protecting piston rod, this utility model is provided with outside jack
Sheath 6, can prevent piston rod from being damaged by big gun or other damages.
Adjustable flexibility rack arrangement mode is pseudo-tiltedly layout of bowing in actual use, thus defines coal and support reach direction
Two from slipping angle.Big gun is adopted after (blow out, coal from slipping on the conveyer of machine lane) terminate, by lifting jack unloading prop drawing,
Back timber unloads, and flexible support just relies on goaf rock pressure and 38 ° of inclination angles from sliding down shifting, it is achieved thereby that flexible support is forward
The action advanced, when behind back timber top to rib, then stretches out jack piston rod, it is achieved a protective function, carries out second time big gun and adopts
Operation, it is achieved coal mining supporting one circulation work.Adjustable flexibility support fully illustrates its structure letter in structure and service behaviour
Single, workman's work space is big, passage space big, low cost, install, regulate, to move frame convenient and safe efficient, low
The features such as consumption, low labor intensity, can be effectively improved working environment simultaneously, and face height change is had good adaptation ability,
Can be used for all kinds of deep inclined thin coal seam coal-face, be a kind of coal mining with good market prospect and social benefit widely
Suspension device.
In sum, content of the present utility model is not limited in the above embodiments, and those skilled in the art can be
Propose other embodiment within technological guidance's thought of the present utility model, but these embodiments are included in model of the present utility model
Within enclosing.
Claims (5)
1. an adjustable flexibility support, it is characterized in that, it is made up of back timber (1) and bottom girder (2), and jack (3) is set between described back timber (1) and bottom girder (2), the upper/lower terminal of described jack (3) is flexibly connected with back timber (1) and bottom girder (2) respectively；Back timber (1) tail end is bent downwardly, and bottom girder (2) tail end upwarps, and the tail end of back timber is flexibly connected by connecting pin (4) with the tail end of bottom girder.
2. a kind of adjustable flexibility support as claimed in claim 1, it is characterised in that described back timber (1) tail end is bent downwardly, and is bent into two sections, and front end is first paragraph, and tail end is second segment, constitutes 165 ° to 175 ° angles between first paragraph and second segment；Bottom girder (2) tail end upwarps, and is bent into three sections, and front end is first paragraph, and middle-end is second segment, and tail end is the 3rd section, wherein constitutes 110 ° to 120 ° angles between first paragraph and second segment, constitutes 105 ° to 110 ° angles between first paragraph and the 3rd section.
3. a kind of adjustable flexibility support as claimed in claim 1 or 2, it is characterised in that the upper end of jack (3) is supported on the second segment of back timber, and the lower end of jack is supported on the first paragraph of bottom girder.
4. a kind of adjustable flexibility support as claimed in claim 1, it is characterised in that described jack (3) outside is cased with sheath (6).
5. a kind of adjustable flexibility support as claimed in claim 1, it is characterised in that be provided with bolt (5) on described back timber (1) and bottom girder (2), be used for hanging steel wire rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620006696.3U CN205477694U (en) | 2016-01-04 | 2016-01-04 | Adjustable flexible support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620006696.3U CN205477694U (en) | 2016-01-04 | 2016-01-04 | Adjustable flexible support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205477694U true CN205477694U (en) | 2016-08-17 |
Family
ID=56665027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620006696.3U Expired - Fee Related CN205477694U (en) | 2016-01-04 | 2016-01-04 | Adjustable flexible support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205477694U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060847A (en) * | 2017-06-08 | 2017-08-18 | 四川广旺能源发展（集团）有限责任公司机械制造分公司 | A kind of scalable flexible hydraulic shield support of rod hinge connection type |
| CN107939424A (en) * | 2017-11-17 | 2018-04-20 | 山东东山矿业有限责任公司株柏煤矿 | High-dipping medium-thickness seam flexible type shield |
-
2016
- 2016-01-04 CN CN201620006696.3U patent/CN205477694U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060847A (en) * | 2017-06-08 | 2017-08-18 | 四川广旺能源发展（集团）有限责任公司机械制造分公司 | A kind of scalable flexible hydraulic shield support of rod hinge connection type |
| CN107060847B (en) * | 2017-06-08 | 2019-03-26 | 四川广旺能源发展（集团）有限责任公司机械制造分公司 | A kind of scalable flexible hydraulic shield support of connecting rod articulated type |
| CN107939424A (en) * | 2017-11-17 | 2018-04-20 | 山东东山矿业有限责任公司株柏煤矿 | High-dipping medium-thickness seam flexible type shield |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20180104 |