CN107939434A - Single pendulum beam caving roof coal hydraulic support - Google Patents
Single pendulum beam caving roof coal hydraulic support Download PDFInfo
- Publication number
- CN107939434A CN107939434A CN201711400255.7A CN201711400255A CN107939434A CN 107939434 A CN107939434 A CN 107939434A CN 201711400255 A CN201711400255 A CN 201711400255A CN 107939434 A CN107939434 A CN 107939434A
- Authority
- CN
- China
- Prior art keywords
- base
- tail boom
- single pendulum
- hydraulic support
- top beam
- 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 36
- 239000000725 suspension Substances 0.000 claims abstract description 17
- 238000005452 bending Methods 0.000 claims description 6
- 238000005065 mining Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 241001442589 Convoluta Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000009434 installation 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
- E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
-
- 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
- E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
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)
- Jib Cranes (AREA)
Abstract
The invention discloses a kind of single pendulum beam caving roof coal hydraulic support, including it is used to support the suspension device of top coal and the tail boom of coal above suspension device is unloaded for putting, the tail boom is articulated with the base of the suspension device.Supporting stability of the present invention is good, and structural strength is high, and the effect that coal is put in the range of machine mining height degree is good.
Description
Technical field
The present invention relates to a kind of coal mine fully-mechanized mining caving roof coal hydraulic support, more particularly to a kind of single pendulum beam Sub-Level Caving hydraulic pressure branch
Frame.
Background technology
Recent decades have eliminated high-order Sub-Level Caving and middle position Sub-Level Caving technology substantially with the development of Sub-Level Caving technology.
At this stage, China's fully mechanized coal face mainly selects low caving coal, its hydraulic support is using positive double leval jib and reverse-four-link-bar, four columns
With two pillars, single wobbling pole stent.Wherein, single swing link hydraulic support, is that middle and small scale coal mine enterprise widely uses one kind, but existing list
Swing rod base still remains following deficiency：First, stabilizing mechanism is single wobbling pole, horizontal section is small, weaker by loading capability, especially
Bear cross force and anti-twisting property is smaller, can not be used on the working face for having certain inclination angle；Second, in higher working depth
In the range of, set cap front end lemniscate is circular arc line backward, has pulling force backward to top plate, is unfavorable for Roof Control；Three
It is that tail boom is installed on top beam, and tail boom synchronously declines with the decline of top beam, can not ensure to adopt altitude range in any machine
Inside there is good drawing effectiveness；Fourth, in order to ensure shielding property, top beam rear end lengthens and is warp architecture, makes beam structure
Complexity, processing difficulties, size is big, weight weight.Therefore, it is necessary to the prior art is improved to solve above-mentioned technical problem.
The content of the invention
In view of this, it is an object of the invention to provide a kind of single pendulum beam caving roof coal hydraulic support, its supporting stability is good,
Structural strength is high, and the effect that coal is put in the range of machine mining height degree is good.Realized in particular by following technical scheme：
Single pendulum beam caving roof coal hydraulic support of the present invention, including be used to support the suspension device of top coal and unload branch for putting
The tail boom of coal, the tail boom are articulated with the base of the suspension device above protection unit.
Further, the suspension device further includes top beam above base and both ends are hingedly connected to top beam and base
On balance arm, tail boom and the base hinge joint overlaps setting with balance arm and base hinge joint.
Further, the suspension device further includes the Telescopic vertical for being used to support top beam being articulated between base and top beam
Column, the top beam, balance arm, base and scalable column form single pendulum arm mechanism.
Further, the base includes the horizontal part for base to be fixedly mounted and is fixedly connected on the curved of horizontal part rear end
Pars convoluta；The scalable column lower end is connected to the horizontal part of base, and the tail boom is connected to the bending section of base.
Further, the driving element for driving tail boom to swing, the tail boom, bottom are provided between the tail boom and base
Seat and driving element form swing-bar mechanism.
Further, the scalable column is set at least provided with two, one in the middle part of top beam, and another close to top
The rear portion of beam is set.
Further, the scalable column and top beam be hinged and/or the horizontal part of scalable upright post base is hingedly ball
It is hinged.
Further, the tail boom is embedded with flashboard mechanism.
Further, the base, top beam, balance arm and tail boom are box-structure.
Beneficial effects of the present invention：Stabilizing mechanism of the present invention is the single pendulum arm mechanism, and horizontal section is big, by loading capability
By force, especially it is subject to cross force and anti-twisting property is larger, is used suitable for large inclination working surface；In working height range, institute
It is forward circular arc line to state top beam front end lemniscate, to the pressure in the oriented coal wall direction of top plate, is conducive to Roof Control；The tail
Beam is independently mounted on coal-caving supporter body, in the state of any machine mining height degree, can ensure good drawing effectiveness.This hair
Other bright beneficial effects will be combined and will be further detailed in embodiment in detail below.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples：
Fig. 1 is the structure diagram of the present invention.
In figure：1st, top beam；2nd, scalable column；3rd, horizontal part；4th, balance arm；5th, tail boom；6th, tail boom jack；7th, bend
Portion；A, the first hinging pin shaft；B, the second hinging pin shaft；C, the 3rd hinging pin shaft；The 4th hinge pins of D.
Embodiment
As shown in Figure 1：In the present embodiment, the single pendulum beam caving roof coal hydraulic support, including it is used to support the branch of top coal
Protection unit and the tail boom 5 that coal above suspension device is unloaded for putting, the tail boom 5 are articulated with the base of the suspension device.
The suspension device can also use other suspension devices of the prior art using hereinafter single pendulum arm mechanism, herein not
Repeat again.Further, present invention additionally comprises for controlling hereinafter tail boom jack 6, the telescopic plug stretching of driving or retracting
Jack and scalable column 2 hydraulic control circuit, preferential, the hydraulic circuit for being used to control tail boom jack 6
Hydraulic circuit with controlling scalable column 2 is independently arranged.
In the present embodiment, suspension device further include and be articulated with the top beam 1 on base top, be articulated with base and top beam 1 it
Between scalable column 2, both ends be hingedly connected to the balance arm 4 on top beam rear portion and base top, the top beam 1, balance arm 4, base
And scalable column 2 forms single pendulum arm mechanism.It is that single-telescopic prop can also that the scalable column 2, which can use fluid pressure type,
It is the scalable column that fluid pressure type double-telescopic upright post can also be other forms in the prior art.Further, due to of the present invention
Base eliminate in the prior art be used for connect the connecting rod between balance arm and base and use integral structure, the top beam 1
It is hinged with balance arm 4 by first axle axis pin A, 4 lower end of balance arm is hinged with base by second hinge axis pin B, foregoing parts
A single pendulum arm mechanism is formed after installation is complete, this mechanism causes top beam 1 during decline, the position of oriented goaf opposite direction
Move, this displacement makes top coal be subject to the pressure to coal wall direction, is conducive to top coal control.When scalable column 2 movable post rise,
Top beam 1 is also with rise, then for balance arm 4 around axis pin B spot wobbles, the movement locus of top beam 1 is using second hinge axis pin B as the center of circle
Circular arc, when scalable column 2 tops out, stent of the present invention keeps stablizing, since base of the present invention is adopted
With integral structure, reduce hinge joint and form the very big supporting stability for improving stent of single pendulum arm mechanism, formed
More reliable and stable supporting.
In the present embodiment, the base includes the horizontal part 3 for base to be fixedly mounted and is fixedly connected on horizontal part 3
The bending section 7 of rear end；2 lower end of scalable column is connected to the horizontal part 3 of base, and the tail boom 5 is connected to the curved of base
Pars convoluta 7.The base is conducive to cooperatively form corresponding four with other components using the global design of horizontal part 3 and bending section 7
Linkage, makes arrangement and design simple；This base global design makes the stress of stent of the present invention more rationally further improve
The stability and reliability of supporting, at the same the damage that also effectively prevent weak part improve the present invention structural strength and
Service life.
In the present embodiment, the tail boom 5 and base hinge joint overlap i.e. second hinge pin with balance arm 4 and base hinge joint
At axis B.The advantages of this arrangement are as follows:Bending section 7, balance arm 4 and 5 three component of tail boom of base unify not only structure using 3 points
Simply, easy to each component arrangement and reduce hinged number compared to being provided separately and be conducive to overcome hinge connection point
The problem of rocking excessively is brought, greatly reduces the factor having a negative impact to supporting stability.
In the present embodiment, the driving element for driving tail boom 5 to swing, institute are provided between the tail boom 5 and base
State tail boom 5, base and driving element and form swing-bar mechanism.The driving element can be tail boom jack 6 in Fig. 1, described
Tail boom jack 6 is connected with base and tail boom 5 respectively by the 3rd hinging pin shaft C and the 4th hinge pin D.Certain driving
Element can also be other driving element such as single-piston-rod hydraulic cylinders in the prior art, and for example telescoping hydraulic cylinder etc.,
For the prior art, details are not described herein for this.
In the present embodiment, the scalable column 2 is set at least provided with two, one close to the middle part of top beam 1, another
Root is set close to the rear portion of top beam 1.Set two scalable columns 2 not only to make the new supporting of this practicality more stable but also can bear
Bigger is located at the pressure of 1 top coal of top beam.During in order to move top beam 1, the present invention is set more steadily can preferentially to set 4
A, its arrangement is preferentially arranged so as to：Wherein two scalable 2 modes as shown in Figure 1 of column are arranged, another two and such as Fig. 1
Two shown scalable 2 parallel verticals of column inwardly or outwardly leave in paper with two scalable columns 2 as shown in Figure 1
A certain distance is set.
In the present embodiment, the scalable column 2 and top beam 1 be hinged and/or the horizontal part 3 of scalable 2 base of column
Be hingedly ball-joint.It is advantageous in that using spherical hinge compared to common hinge connection：The scalable column 2 can be born more
Big power is without destroyed.
In the present embodiment, the tail boom 5 is embedded with flashboard mechanism (not identified in figure), the coal larger for fragmentation volume
Block.The flashboard mechanism is flashboard mechanism of the prior art, such as：The flashboard mechanism is plugged by contracting formula and stretched for driving
Contracting formula plug stretching, extension and the jack retracted, for the prior art, details are not described herein for this.
In the present embodiment, the base, top beam 1, balance arm 4 and tail boom 5 make described in the utility model for box-structure
Rack bearing ability is strong.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail in good embodiment, it will be understood by those of ordinary skill in the art that, can be to the skill of the present invention
Art scheme technical scheme is modified or replaced equivalently, without departing from the objective and scope of technical solutions of the utility model, it should all cover
Among scope of the presently claimed invention.
Claims (9)
1. a kind of single pendulum beam caving roof coal hydraulic support, including be used to support the suspension device of top coal and unload suspension device for putting
The tail boom of square coal, it is characterised in that：The tail boom is articulated with the base of the suspension device.
2. single pendulum beam caving roof coal hydraulic support according to claim 1, it is characterised in that：The suspension device further includes position
Top beam and both ends above base are hingedly connected to top beam and the balance arm on base, tail boom and the base hinge joint and balance arm
Overlap and set with base hinge joint.
3. single pendulum beam caving roof coal hydraulic support according to claim 2, it is characterised in that：The suspension device further includes hinge
The scalable column for being used to support top beam being connected between base and top beam, the top beam, balance arm, base and scalable column structure
Into single pendulum arm mechanism.
4. single pendulum beam caving roof coal hydraulic support according to claim 3, it is characterised in that：The base includes being used to fix
The horizontal part of mounting seat and the bending section for being fixedly connected on horizontal part rear end；The scalable column lower end is connected to base
Horizontal part, the tail boom are connected to the bending section of base.
5. single pendulum beam caving roof coal hydraulic support according to claim 2, it is characterised in that：Set between the tail boom and base
The driving element for driving tail boom to swing is equipped with, the tail boom, base and driving element form swing-bar mechanism.
6. single pendulum beam caving roof coal hydraulic support according to claim 3, it is characterised in that：The scalable column is at least set
Two are equipped with, one is set in the middle part of top beam, and another is set close to the rear portion of top beam.
7. single pendulum beam caving roof coal hydraulic support according to claim 6, it is characterised in that：The scalable column and top beam
The horizontal part of hinged and/or scalable upright post base is hingedly ball-joint.
8. single pendulum beam caving roof coal hydraulic support according to claim 7, it is characterised in that：The tail boom is embedded with board-plugging device
Structure.
9. the single pendulum beam caving roof coal hydraulic support according to claim 2-8 any claims, it is characterised in that：The bottom
Seat, top beam, balance arm and tail boom are box-structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711400255.7A CN107939434A (en) | 2017-12-22 | 2017-12-22 | Single pendulum beam caving roof coal hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711400255.7A CN107939434A (en) | 2017-12-22 | 2017-12-22 | Single pendulum beam caving roof coal hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107939434A true CN107939434A (en) | 2018-04-20 |
Family
ID=61942569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711400255.7A Pending CN107939434A (en) | 2017-12-22 | 2017-12-22 | Single pendulum beam caving roof coal hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107939434A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1157367A (en) * | 1996-10-03 | 1997-08-20 | 中国矿业大学北京研究生部 | Light low-level hydraulic prop for caving coal-mining method |
| CN2612799Y (en) * | 2003-03-05 | 2004-04-21 | 兖矿集团有限公司 | Hydraulic prop frame for low position blasting down the roof coal |
| CN1526914A (en) * | 2003-03-05 | 2004-09-08 | 兖矿集团有限公司 | Hydraulic coal mine support for low-position roof blasting-down |
| CN2687341Y (en) * | 2004-03-03 | 2005-03-23 | 开滦(集团)有限责任公司机电总厂 | Low-position coal blasting-caving hydraulic prop |
| CN101105135A (en) * | 2007-08-10 | 2008-01-16 | 郑州煤矿机械集团有限责任公司 | Two column protected type hydraulic prop frame for low position blasting down the roof coal |
| CN101105136A (en) * | 2007-08-10 | 2008-01-16 | 郑州煤矿机械集团有限责任公司 | Four column protected type hydraulic prop frame for low position blasting down the roof coal |
| CN201062524Y (en) * | 2007-08-10 | 2008-05-21 | 郑州煤矿机械集团有限责任公司 | Two-post secured low-roof coal hydraulic bracket |
| CN101592035A (en) * | 2009-06-25 | 2009-12-02 | 中煤北京煤矿机械有限责任公司 | Big mining height shield type low caving coal hydraulic support |
| CN201363155Y (en) * | 2009-03-25 | 2009-12-16 | 高九华 | Mine single oscillating bar breaking coal hydraulic support |
| CN102900450A (en) * | 2012-09-05 | 2013-01-30 | 山东科技大学 | Caving coal hydraulic support with large swing beam structure |
| CN202788899U (en) * | 2012-09-05 | 2013-03-13 | 山东科技大学 | Large-swing beam structured top coal caving hydraulic support |
| CN203067006U (en) * | 2013-01-28 | 2013-07-17 | 郑州四维机电设备制造有限公司 | Hydraulic support |
| CN203702215U (en) * | 2013-12-19 | 2014-07-09 | 郑州煤机综机设备有限公司 | Dual-purpose hydraulic support for full-seam mining and top coal caving |
-
2017
- 2017-12-22 CN CN201711400255.7A patent/CN107939434A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1157367A (en) * | 1996-10-03 | 1997-08-20 | 中国矿业大学北京研究生部 | Light low-level hydraulic prop for caving coal-mining method |
| CN2612799Y (en) * | 2003-03-05 | 2004-04-21 | 兖矿集团有限公司 | Hydraulic prop frame for low position blasting down the roof coal |
| CN1526914A (en) * | 2003-03-05 | 2004-09-08 | 兖矿集团有限公司 | Hydraulic coal mine support for low-position roof blasting-down |
| CN2687341Y (en) * | 2004-03-03 | 2005-03-23 | 开滦(集团)有限责任公司机电总厂 | Low-position coal blasting-caving hydraulic prop |
| CN201062524Y (en) * | 2007-08-10 | 2008-05-21 | 郑州煤矿机械集团有限责任公司 | Two-post secured low-roof coal hydraulic bracket |
| CN101105136A (en) * | 2007-08-10 | 2008-01-16 | 郑州煤矿机械集团有限责任公司 | Four column protected type hydraulic prop frame for low position blasting down the roof coal |
| CN101105135A (en) * | 2007-08-10 | 2008-01-16 | 郑州煤矿机械集团有限责任公司 | Two column protected type hydraulic prop frame for low position blasting down the roof coal |
| CN201363155Y (en) * | 2009-03-25 | 2009-12-16 | 高九华 | Mine single oscillating bar breaking coal hydraulic support |
| CN101592035A (en) * | 2009-06-25 | 2009-12-02 | 中煤北京煤矿机械有限责任公司 | Big mining height shield type low caving coal hydraulic support |
| CN102900450A (en) * | 2012-09-05 | 2013-01-30 | 山东科技大学 | Caving coal hydraulic support with large swing beam structure |
| CN202788899U (en) * | 2012-09-05 | 2013-03-13 | 山东科技大学 | Large-swing beam structured top coal caving hydraulic support |
| CN203067006U (en) * | 2013-01-28 | 2013-07-17 | 郑州四维机电设备制造有限公司 | Hydraulic support |
| CN203702215U (en) * | 2013-12-19 | 2014-07-09 | 郑州煤机综机设备有限公司 | Dual-purpose hydraulic support for full-seam mining and top coal caving |
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