CN108222992A - Leading chock for drift equipped with big magnification cylindricality stabilizing mechanism - Google Patents
Leading chock for drift equipped with big magnification cylindricality stabilizing mechanism Download PDFInfo
- Publication number
- CN108222992A CN108222992A CN201810130167.8A CN201810130167A CN108222992A CN 108222992 A CN108222992 A CN 108222992A CN 201810130167 A CN201810130167 A CN 201810130167A CN 108222992 A CN108222992 A CN 108222992A
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- China
- Prior art keywords
- cylindricality
- stabilizing mechanism
- pedestal
- drift
- big
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- Pending
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 45
- 230000000087 stabilizing effect Effects 0.000 title claims abstract description 29
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000009412 basement excavation Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 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
- E21D23/0418—Positioning devices and stabilizing means for the props
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a kind of leading chock for drift equipped with big magnification cylindricality stabilizing mechanism, including top beam, column, pedestal, big magnification cylindricality stabilizing mechanism are equipped between top beam and pedestal, four-bar mechanism is not set between top beam and pedestal.Pillar construction of the prior art may be used in big magnification cylindricality stabilizing mechanism.It can be used on excavation support, substitute four-bar mechanism, solve the problems, such as that four-bar mechanism occupied space is big.Also, in stent lifting process, beam-ends can be made to become cancellation, conducive to the supporting to breaking roof.Transporting bracket size can be effectively reduced, and weight support frame can be reduced to a certain extent.Arrangement of the stent in tunnel is made to bring a kind of completely new arrangement.
Description
Technical field
The present invention relates to a kind of coal-mine hydraulic support more particularly to a kind of lanes equipped with big magnification cylindricality stabilizing mechanism
Road advance timbering.
Background technology
Working face under modern fully mechanized coal winning technology is made of Zhu Yun lanes, Fu Yun lanes and coal working face.Work
Face length is generally 200-300 meters, about 1000-2000 meters of working face strike length.One working face has been adopted, and is needed equipment
Another adjacent working face is transferred to continue to exploit.The coal column there are about 20 meters is understood between two working faces.
With the continuous reduction of coal resources, the requirement to coal recovery efficiency is continuously improved.The thickness of coal column gradually contracts
It is small.It is larger close to working face end roof pressure that this results in underground coal mine air return lane, closer to working face, crushes tighter
Weight, roof fall risk are bigger.For security needs, down-hole coal excavation tailentry need to use advance support close to working face end.
Early period, back pressure is small, and support form uses individual prop more.Individual prop has simple in structure at low cost
The advantages of.But individual prop still lacks stabilizing mechanism.Individual prop easy unstability when bearing longitudinal force.
Now, advance support uses advance timbering form more.Advance timbering is by top beam, cant beam, front-rear linkage and pedestal etc.
The Hydraulic Elements composition such as structural member and column, passage cylinder, retaining wall oil cylinder.Cant beam and front-rear linkage form the stabilizing mechanism of stent.
This mechanical stability is higher.
As shown in Figure 1 a, 1 b, it is that the leading chock for drift with four-bar mechanism, this scheme surpass in the prior art
Two one group of fore-stock, all with the stabilizing mechanism of caving shield, front-rear linkage composition four-bar mechanism as advance timbering.Four
Under the action of link mechanism, stent beam-ends is swung in hyperbolic locus, and amplitude is smaller (as shown in Figure 2).Also, back power
Can stress be transmitted to pedestal by four-bar mechanism, can born because of the twisting resistance that top plate is uneven and is subject to.
The shortcomings that above-mentioned prior art is：
Four-bar mechanism the space occupied is larger, and stent needs larger size in travel position.Also, if tunnel is high
Degree is higher, and double leval jib curvilinear motion increases, and influences roof timbering effect.
Invention content
The object of the present invention is to provide a kind of leading chock for drift equipped with big magnification cylindricality stabilizing mechanism.
The purpose of the present invention is what is be achieved through the following technical solutions：
The leading chock for drift equipped with big magnification cylindricality stabilizing mechanism of the present invention, including top beam, column, pedestal,
Big magnification cylindricality stabilizing mechanism is equipped between the top beam and pedestal, four-bar mechanism is not set between the top beam and pedestal.
As seen from the above technical solution provided by the invention, it is provided in an embodiment of the present invention to be equipped with big magnification cylindricality
The leading chock for drift of stabilizing mechanism, is integrated with the function of the roof supporting of column and double leval jib maintains the function of stability,
Reduce weight support frame to a certain extent, reduce manufacture cost, and transporting bracket size can be effectively reduced.Make stent in lane
The arrangement in road brings a kind of completely new arrangement.
Description of the drawings
Fig. 1 a, Fig. 1 b respectively have the leading chock for drift air return lane of four-bar mechanism along lane layout drawing in the prior art
With drift section layout drawing；
Fig. 2 is beam-ends curve and double leval jib schematic diagram in the prior art；
Fig. 3 is the structure diagram of the big magnification cylindricality stabilizing mechanism in the embodiment of the present invention；
Fig. 4 a, Fig. 4 b are respectively the leading chock for drift that big magnification cylindricality stabilizing mechanism is equipped in the embodiment of the present invention
The schematic diagram of working condition and travel position.
In figure：
1- caving shields, 2- front rods, 3- back links, 4- top beams, 5- pedestals, 6- columns, the big magnification cylindricalitys of 7- stablize machine
Structure.
Specific embodiment
The embodiment of the present invention will be described in further detail below.What is be not described in detail in the embodiment of the present invention is interior
Appearance belongs to the prior art well known to professional and technical personnel in the field.
The leading chock for drift equipped with big magnification cylindricality stabilizing mechanism of the present invention, preferable specific embodiment
It is：
Including top beam, column, pedestal, big magnification cylindricality stabilizing mechanism, the top are equipped between the top beam and pedestal
Four-bar mechanism is not set between beam and pedestal.
The big magnification cylindricality stabilizing mechanism is triple retractable column structure or double-telescopic upright post structure or single-telescopic prop
Band mechanical extension bar structure or single-telescopic prop structure.
The leading chock for drift equipped with big magnification cylindricality stabilizing mechanism of the present invention is that one kind uses on excavation support
, stabilizing mechanism that four-bar mechanism can be substituted.It solves the problems, such as that four-bar mechanism occupied space is big.Also, it is propping up
In frame lifting process, beam-ends can be made to become cancellation, conducive to the supporting to breaking roof.
The present invention can effectively reduce transporting bracket size, and can reduce weight support frame to a certain extent.Stent is made to exist
The arrangement in tunnel brings a kind of completely new arrangement.
As shown in figure 3, big magnification cylindricality stabilizing mechanism uses class triple retractable column structure.The guide section of telescoping cylinders at different levels
It is longer, respectively using three guide rings and band, the stretch stability and leakproofness of column is effectively ensured.Column bottom and bracket base
It is connected using active card disc type, movable post is hinged with set cap using axis pin.This mechanism can as column roof supporting pressure
Power, and can have certain longitudinal stability as four-bar mechanism.Advance timbering can be in lane using cylindricality stabilizing mechanism
Close to side, larger space is provided to transport of the material in tunnel for lateral arrangement on road.
As shown in Fig. 4 a, Fig. 4 b, to be equipped with leading chock for drift figure (Fig. 4 a work shapes of big magnification cylindricality stabilizing mechanism
State, Fig. 4 b travel positions)
The advantageous effect that technical solution of the present invention is brought：
1) excavation support can make it possible excavation support lateral arrangement using this technology, make excavation support close to one
Side without four-bar mechanism, is not take up the space of material transportation.
2) a kind of novel excavation support form is provided, due to not having double leval jib, travel position overall dimensions are smaller.
3) cylindricality stabilizing mechanism is integrated with the function of the roof supporting of column and double leval jib maintains the function of stability, one
Determine to reduce weight support frame in degree, reduce manufacture cost.
In concrete application, cylindricality stabilizing mechanism can be triple retractable column or double-telescopic upright post or singly stretch
Contracting column band mechanical extension bar structure.If tunnel is relatively low, it is also possible to directly using single-telescopic prop.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art is in the technical scope of present disclosure, the change or replacement that can readily occur in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Subject to enclosing.
Claims (2)
1. a kind of leading chock for drift equipped with big magnification cylindricality stabilizing mechanism, including top beam, column, pedestal, feature exists
In, between the top beam and pedestal be equipped with big magnification cylindricality stabilizing mechanism, double leval jib machine is not set between the top beam and pedestal
Structure.
2. the leading chock for drift according to claim 1 equipped with big magnification cylindricality stabilizing mechanism, which is characterized in that institute
Big magnification cylindricality stabilizing mechanism is stated to lengthen for triple retractable column structure or double-telescopic upright post structure or single-telescopic prop band machinery
Rod structure or single-telescopic prop structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810130167.8A CN108222992A (en) | 2018-02-08 | 2018-02-08 | Leading chock for drift equipped with big magnification cylindricality stabilizing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810130167.8A CN108222992A (en) | 2018-02-08 | 2018-02-08 | Leading chock for drift equipped with big magnification cylindricality stabilizing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108222992A true CN108222992A (en) | 2018-06-29 |
Family
ID=62671024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810130167.8A Pending CN108222992A (en) | 2018-02-08 | 2018-02-08 | Leading chock for drift equipped with big magnification cylindricality stabilizing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108222992A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201209457Y (en) * | 2008-06-10 | 2009-03-18 | 重庆大江工业(集团)有限责任公司 | Oblique top tunnel advanced support transversal moving forward support |
| CN203223239U (en) * | 2013-05-06 | 2013-10-02 | 辽宁天安矿山科技有限公司 | Roadway advance timbering support used for assisting machine to move |
| RU2016115377A (en) * | 2015-10-29 | 2017-10-25 | Чайна Юниверсити Оф Майнинг Энд Текнолоджи | TURNBOARD HYDRAULIC FASTENERS |
| CN208280975U (en) * | 2018-02-08 | 2018-12-25 | 中煤北京煤矿机械有限责任公司 | Leading chock for drift equipped with big magnification cylindricality stabilizing mechanism |
-
2018
- 2018-02-08 CN CN201810130167.8A patent/CN108222992A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201209457Y (en) * | 2008-06-10 | 2009-03-18 | 重庆大江工业(集团)有限责任公司 | Oblique top tunnel advanced support transversal moving forward support |
| CN203223239U (en) * | 2013-05-06 | 2013-10-02 | 辽宁天安矿山科技有限公司 | Roadway advance timbering support used for assisting machine to move |
| RU2016115377A (en) * | 2015-10-29 | 2017-10-25 | Чайна Юниверсити Оф Майнинг Энд Текнолоджи | TURNBOARD HYDRAULIC FASTENERS |
| CN208280975U (en) * | 2018-02-08 | 2018-12-25 | 中煤北京煤矿机械有限责任公司 | Leading chock for drift equipped with big magnification cylindricality stabilizing mechanism |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180629 |
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| RJ01 | Rejection of invention patent application after publication |