CN206190305U - Class soil property coal face hydraulic bracket - Google Patents
Class soil property coal face hydraulic bracket Download PDFInfo
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- CN206190305U CN206190305U CN201621266635.7U CN201621266635U CN206190305U CN 206190305 U CN206190305 U CN 206190305U CN 201621266635 U CN201621266635 U CN 201621266635U CN 206190305 U CN206190305 U CN 206190305U
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- back timber
- jack
- soil property
- hydraulic support
- working surface
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Abstract
The utility model discloses a class soil property coal face hydraulic bracket, this hydraulic support include support base, support back timber, support stand, advancing jack, protect group's board and protect group's board jack, still include preceding spy back timber and preceding spy back timber jack, wherein, preceding spy back timber is located the place ahead of support back timber, by preceding spy back timber jack control is flexible to insert in the rib when strutting the operation. The utility model discloses to class soil property coal, visit the back timber before utilizing and provide effectual working space for protecting group's board, be favorable to hydraulic support to protect opening completely of group's board, exert hydraulic support's backplate effect fully, and then improve the stability of rib.
Description
Technical field
The present invention relates to a kind of Coal Mining Technology field, more particularly, to a species soil property coal working surface hydraulic support and
Seam mining means of defence.
Background technology
Weak seam low intensity, structural difference, long-term specific geology to formd under mechanical condition it is similar to loess
Physics classroom teaching, this broken, the loose coal body like the non-soil of soil, is class soil property coal.
The easy wall caving unstability of rib in class soil property coal working face mining process, the stability problem of rib seriously constrains class soil
The safety and high efficiency in matter coal seam.During the back production of coal seam, hydraulic support plays a key role in supporting, and selects suitable hydraulic support
It is prevention and control coal wall caving, improves the premise of coal body stability.
Although the existing hydraulic support for weak seam working face increased face guard, but after coal-winning machine coal cutting,
New exposed top easily inbreak, the coal and rock of inbreak is deposited in rib front, reduces the space in front of hydraulic support, causes
Face guard is difficult to open completely, and the wall supporting performance of support is not in full use, and supporting effect is not also obvious, it is impossible to greatest extent
Raising coal body stability.
The content of the invention
It is an object of the invention to provide a species soil property coal working surface hydraulic support, to improve rib in recovery process
Stability.
Seam mining means of defence the present invention also aims to provide a species soil property coal, was exploited with improving rib
The stability of rib in journey.
Therefore, the invention provides a species soil property coal working surface hydraulic support, including bracket base, set cap, branch
Post, advancing jack, face guard and face guard jack are erected, also including preceding spy back timber and preceding spy back timber jack, its
In, it is preceding to visit the front that back timber is located at set cap, it is flexible by preceding spy back timber jack control, and insert coal in supporting operation
In wall.
Further, above-mentioned preceding back timber of visiting is spade-type.
Further, one end that back timber jack is visited before above-mentioned is fixedly connected with set cap, the other end and preceding spy back timber
It is fixedly connected.
Further, one end of above-mentioned face guard jack is connected with set cap, and the other end is connected with face guard.
Further, the connection end of above-mentioned face guard is hinged with set cap.
Further, above-mentioned preceding width of the width less than set cap for visiting back timber and preceding spy back timber jack.
Further, above-mentioned face guard visits back timber thousand including wall supporting plate body operationally parallel to the scope of operation and positioned at pricker
The connecting rod of the jin top left and right sides, wherein, connecting rod includes the connection end being hinged with set cap.
Further, the position of the close preceding spy back timber bottom surface of above-mentioned face guard is provided with avoidance face, wherein, face is avoided in shield
Formed and rib between during side board supporting operation and avoid space.
Further, the above-mentioned preceding bottom surface for visiting back timber is inclined-plane, is 5 °~10 ° with the angle of horizontal plane.
According to another aspect of the present invention, there is provided the seam mining means of defence of a species soil property coal, using according to upper
Class soil property coal working surface hydraulic support described by face, the means of defence is comprised the following steps：Rib is exploited in coal mining machine roller
When reaching the hydraulic support position, the preceding spy back timber and face guard of the hydraulic support are reclaimed, carry out coal cutting；Coal cutting knot
Shu Suihou reclaims the bracket upright post of the hydraulic support, before drag conveyor and advancing jack traction hydraulic support entirety
Move, then rise the bracket upright post, support the set cap；Back timber jack is visited before opening forces the preceding back timber of visiting to be inserted
Enter rib, and open face guard jack and open face guard；And promote drag conveyor and coal mining using advancing jack
Machine moves forward, and waits exploitation next time.
Compared with the prior art, the present invention has the beneficial effect that：The present invention sets above set cap leading portion, face guard
Preceding spy back timber is counted, after coal-winning machine coal cutting, preceding back timber of visiting can in time stretch out supporting under the promotion of preceding spy back timber jack
New exposed top board, prevents roof collapse, it is ensured that the space between hydraulic support and rib, is that face guard improves effective work
Space, is conducive to the opening completely of side protection plate of hydraulic support, fully plays the backplate effect of hydraulic support, improves the steady of rib
It is qualitative.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to figure, the present invention is further detailed explanation.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing a further understanding of the present invention, of the invention to show
Meaning property and its illustrates, for explaining the present invention, not constitute inappropriate limitation of the present invention embodiment.In the accompanying drawings：
Fig. 1 shows the structural representation of class soil property coal working surface hydraulic support according to an embodiment of the invention；
Fig. 2 shows the top structure of class soil property coal working surface hydraulic support according to an embodiment of the invention；
Fig. 3 shows that class soil property coal working surface hydraulic support according to an embodiment of the invention uses shape in stope
The schematic diagram of state；
Fig. 4 shows the structural representation of the face guard of class soil property coal working surface hydraulic support according to an embodiment of the invention
Figure；And
Fig. 5 shows the flow chart of the seam mining means of defence of class soil property coal according to an embodiment of the invention.
Description of reference numerals
1st, preceding spy back timber；2nd, preceding spy back timber jack；
3rd, face guard；4th, face guard jack；
5th, set cap；6th, bracket upright post；
7th, bracket base；8th, advancing jack；
9th, drag conveyor；10th, coal-winning machine；
11st, coal mining machine roller；12nd, rib；
31st, wall supporting plate body；32nd, connecting rod；
33rd, face is avoided；1a, top surface；
1b, bottom surface.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Fig. 1 to Fig. 4 shows some embodiments of the invention.
As shown in figures 1 and 3, class soil property coal working surface hydraulic support includes bracket base 7, set cap 5, bracket upright post
6th, advancing jack 8, face guard 3 and face guard jack 4, also including preceding spy back timber 1 and preceding spy back timber jack 2, its
In, it is preceding to visit the front that back timber 1 is located at set cap 5, control to stretch by preceding spy back timber jack 2, and used in supporting operation
In rib is inserted.
Wherein, preceding one end of spy back timber jack 2 is connected with set cap 5, and the other end is connected with preceding spy back timber 1, preceding
Spy back timber jack 2 stretches out spy back timber 1 before can promoting and moves forward, and one end of face guard jack 4 is connected with set cap 5, separately
One end is connected with face guard 3, and face guard jack 4 stretches out can open face guard 3, and bracket upright post 6 is located at set cap 5 with branch
Between frame base 7, bracket upright post 6 is used for supporting support back timber 5, and advancing jack 8 is connected with bracket base 7.
The present invention visits back timber before devising above set cap leading portion, the face guard, after coal-winning machine coal cutting, preceding spy back timber
The new exposed top board of supporting can be in time stretched out under the promotion of preceding spy back timber jack, roof collapse is prevented, it is ensured that hydraulic pressure
Space between support and rib, is that face guard improves effective working space, is conducive to the opening completely of side protection plate of hydraulic support,
The backplate effect of hydraulic support can be to greatest extent played, the stability of rib is improved.
In one embodiment, as shown in Fig. 2 preceding spy back timber 1 is spade-type.Preferably, the preceding top surface 1a for visiting back timber 1 is level
Face, bottom surface 1b is inclined-plane, and along the direction of stretching out of preceding spy back timber 1, the thickness of preceding spy back timber 1 is thinning by thickness, and end is pointed.It is more excellent
Selection of land, the oblique angle of the bottom surface 1b of preceding spy back timber between 5 ° -10 °, such as 6 °.In the present embodiment, the preceding shape for visiting back timber is fitted
Close in insertion coal seam, the external force for being applied is small, local eminence or scaling-off more by a small margin is only produced to rib.
In one embodiment, as shown in Figure 1 and Figure 4, in the operating position of face guard, the top of face guard 3 is avoidance face
33, the avoidance face 33 avoids space relative to the vertical operation face flare of rib to be formed.In the present embodiment, face is avoided
It is provided with the smooth opening beneficial to face guard.Meanwhile, the avoidance face 33 is functionally mutual with the bottom surface (inclined-plane) of preceding spy back timber 1
Coordinate, avoid the position of rib local eminence such that it is able to reach more preferable supporting effect.
In one embodiment, as shown in Fig. 2 stretching out direction along preceding spy back timber, the width of preceding spy back timber 1 narrows from the width,
End is pointed.In the present embodiment, the Cat-in resisting force of back timber is visited before can further reducing.
In one embodiment, it is preceding to visit the width of back timber 1 and the preceding width for visiting back timber jack 2 less than set cap.At this
In embodiment, in the width range of set cap, the preceding settable connecting rod in spy back timber jack both sides, for connecting wall supporting
Plate.
In one embodiment, as shown in figure 4, face guard 3 is included operationally parallel to the He of wall supporting plate body 31 of the scope of operation
Positioned at the connecting rod 32 of the preceding spy back timber jack left and right sides, wherein, connection end and the set cap 5 of connecting rod 32 are hinged.
In the present embodiment, the space of preceding spy back timber jack both sides is make use of effective and reasonablely.In a variant embodiment, connecting rod 32
It is fixedly connected with set cap 5, wall supporting plate body 31 is hinged with connecting rod 32.In this variant embodiment, connecting rod 32 is fixation
Part, when reclaiming, preceding spy back timber is located between the connecting rod of both sides, and preceding spy back timber is played a protective role.
As shown in figure 5, the seam mining means of defence of class soil property coal is comprised the following steps：
S11, when coal mining machine roller exploitation rib reaches the hydraulic support position, reclaim the hydraulic support
It is preceding to visit back timber and face guard, carry out coal cutting；
The bracket upright post of the hydraulic support is reclaimed in S13, coal cutting after terminating, led using drag conveyor and advancing jack
Draw hydraulic support integral forward lead, then rise the bracket upright post, support the set cap；
S15, open before visit back timber jack force it is described before visit back timber insertion rib, and open face guard jack and beat
Open face guard；And
S17, promote drag conveyor and coal-winning machine to move forward using advancing jack, wait exploitation next time.
Seam mining means of defence of the invention, after the coal cutting of coal mining machine roller 11 terminates, reclaims bracket upright post 6, profit
With drag conveyor 9 and the towing bracket integral forward lead of advancing jack 8, subsequent lift boom column 6, supporting support back timber 5 is opened
Open face guard jack 4, promote preceding back timber of visiting to insert rib, then open face guard 3, completely isolated new exposed top board reaches
Prevent the purpose of roof fall；Finally drag conveyor 9 and coal-winning machine 10 is promoted to move forward using advancing jack 8, completion is once mined
Bracing Process.
The present invention has given full play to the wall supporting and support action of hydraulic support, prevents from occurring in recovery process " piece, emit, leak "
Deng the accident of harm safety in production, the purpose of the class soil property safe and efficient back production of coal working face is reached.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (9)
1. a species soil property coal working surface hydraulic support, including bracket base (7), set cap (5), bracket upright post (6), passage
Jack (8), face guard (3) and face guard jack (4), it is characterised in that also pushed up including preceding spy back timber (1) and preceding spy
Beam jack (2), wherein, the preceding back timber (1) of visiting is very heavy by the preceding spy back timber positioned at the front of the set cap (5)
Top (2) control is flexible, and in supporting operation in insertion rib.
2. class soil property coal working surface hydraulic support according to claim 1, it is characterised in that back timber (1) is visited before described is
Spade-type.
3. class soil property coal working surface hydraulic support according to claim 1, it is characterised in that back timber jack is visited before described
(2) one end is fixedly connected with the set cap (5), and the other end is fixedly connected with preceding spy back timber (1).
4. class soil property coal working surface hydraulic support according to claim 1, it is characterised in that the face guard jack
(4) one end is connected with the set cap (5), and the other end is connected with the face guard (3).
5. class soil property coal working surface hydraulic support according to claim 1, it is characterised in that the company of the face guard (3)
End is connect to be hinged with the set cap (5).
6. class soil property coal working surface hydraulic support according to claim 1, it is characterised in that visited before described back timber (1) and
Width of the preceding width for visiting back timber jack (2) less than the set cap (5).
7. class soil property coal working surface hydraulic support according to claim 6, it is characterised in that the face guard (3) includes
Wall supporting plate body (31) in supporting operation parallel to rib face and the company positioned at described preceding spy back timber jack (2) left and right sides
Extension bar (32), wherein, the connecting rod (32) includes the connection end that is hinged with the set cap (5).
8. class soil property coal working surface hydraulic support according to claim 1, it is characterised in that the close institute of the face guard
The position that back timber bottom surface is visited before stating is provided with avoidance face, wherein, the avoidance face in the wall supporting slab supporting operation with the coal
Formed between wall and avoid space.
9. class soil property coal working surface hydraulic support according to claim 8, it is characterised in that back timber (1) is visited before described
Bottom surface (1b) is inclined-plane, is 5 °~10 ° with the angle of horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621266635.7U CN206190305U (en) | 2016-11-24 | 2016-11-24 | Class soil property coal face hydraulic bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621266635.7U CN206190305U (en) | 2016-11-24 | 2016-11-24 | Class soil property coal face hydraulic bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206190305U true CN206190305U (en) | 2017-05-24 |
Family
ID=58724587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621266635.7U Active CN206190305U (en) | 2016-11-24 | 2016-11-24 | Class soil property coal face hydraulic bracket |
Country Status (1)
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|---|---|
| CN (1) | CN206190305U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382127A (en) * | 2016-11-24 | 2017-02-08 | 安徽理工大学 | Soil-like coal face hydraulic support and coal mining protection method |
| CN107916949A (en) * | 2017-12-22 | 2018-04-17 | 兖矿东华重工有限公司 | A kind of face end hydraulic support |
| CN110671141A (en) * | 2019-10-28 | 2020-01-10 | 陕西开拓建筑科技有限公司 | Hydraulic support for separate mining and transportation mining of thin coal seam and mining method |
-
2016
- 2016-11-24 CN CN201621266635.7U patent/CN206190305U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382127A (en) * | 2016-11-24 | 2017-02-08 | 安徽理工大学 | Soil-like coal face hydraulic support and coal mining protection method |
| CN106382127B (en) * | 2016-11-24 | 2017-11-21 | 安徽理工大学 | One species soil property coal working surface hydraulic support and seam mining means of defence |
| CN107916949A (en) * | 2017-12-22 | 2018-04-17 | 兖矿东华重工有限公司 | A kind of face end hydraulic support |
| CN110671141A (en) * | 2019-10-28 | 2020-01-10 | 陕西开拓建筑科技有限公司 | Hydraulic support for separate mining and transportation mining of thin coal seam and mining method |
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