CN208280975U - 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
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- CN208280975U CN208280975U CN201820225828.0U CN201820225828U CN208280975U CN 208280975 U CN208280975 U CN 208280975U CN 201820225828 U CN201820225828 U CN 201820225828U CN 208280975 U CN208280975 U CN 208280975U
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- cylindricality
- stabilizing mechanism
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- pedestal
- big magnification
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Abstract
The utility model 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 is equipped between top beam and pedestal, four-bar mechanism is not set between top beam and pedestal, 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.Big magnification cylindricality stabilizing mechanism can use pillar construction in the prior art.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 bracket 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.Bracket is set to bring a kind of completely new arrangement in the arrangement in tunnel.
Description
Technical field
The utility model relates to a kind of coal-mine hydraulic supports, more particularly to one kind to be equipped with big magnification cylindricality stabilizing mechanism
Leading chock for drift.
Background technique
Working face under modern fully mechanized coal winning technology is made of the lane Zhu Yun, the lane Fu Yun 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.There are about 20 meters of coal columns for meeting 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 mostly uses individual prop.Individual prop has structure simply at low cost
The advantages of.But individual prop still lacks stabilizing mechanism.Individual prop is easy unstability when bearing longitudinal force.
Now, advance support mostly uses advance timbering form.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 constitute the stabilizing mechanism of bracket.
This mechanical stability is higher.
It as shown in Figure 1 a, 1 b, is the leading chock for drift in the prior art with four-bar mechanism, this scheme surpasses
Two one group of fore-stock, all stabilizing mechanism with caving shield, front-rear linkage composition four-bar mechanism as advance timbering.Four
Under the action of link mechanism, bracket beam-ends is swung in hyperbolic locus, and amplitude is smaller (as shown in Figure 2).Also, back power
Stress can be transmitted to pedestal by four-bar mechanism, be able to bear 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 bracket needs biggish size in travel position.Also, if tunnel is high
Degree is higher, and double leval jib curvilinear motion increases, and influences roof timbering effect.
Utility model content
The purpose of the utility model is to provide a kind of leading chock for drift equipped with big magnification cylindricality stabilizing mechanism.
The purpose of this utility model is achieved through the following technical solutions:
The leading chock for drift equipped with big magnification cylindricality stabilizing mechanism of the utility model, including top beam, column, bottom
Seat is equipped with big magnification cylindricality stabilizing mechanism, does not set double leval jib between the top beam and pedestal between the top beam and pedestal
Mechanism.
Provided by the embodiment of the utility model be equipped with is stretched greatly it can be seen from above-mentioned technical solution provided by the utility model
It contracts than the leading chock for drift of cylindricality stabilizing mechanism, the function and double leval jib for being integrated with the roof supporting of column maintain stability
Function reduces weight support frame to a certain extent, reduces manufacturing cost, and can effectively reduce transporting bracket size.Make
Arrangement of the bracket in tunnel brings a kind of completely new arrangement.
Detailed description of the invention
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 structural schematic diagram of the big magnification cylindricality stabilizing mechanism in the utility model embodiment；
Fig. 4 a, Fig. 4 b are respectively that the tunnel in the utility model embodiment equipped with big magnification cylindricality stabilizing mechanism is propped up in advance
The working condition of frame and the schematic diagram of travel position.
In figure:
1- caving shield, 2- front rod, 3- back link, 4- top beam, 5- pedestal, 6- column, the big magnification cylindricality of 7-
Stabilizing mechanism.
Specific embodiment
The utility model embodiment will be described in further detail below.Do not make in the utility model embodiment in detail
The content of description 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 utility model, preferable specific embodiment party
Formula 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 utility model is one kind on excavation support
Stabilizing mechanism use, that four-bar mechanism can be substituted.It solves the problems, such as that four-bar mechanism occupied space is big.Also,
In bracket lifting process, beam-ends can be made to become cancellation, conducive to the supporting to breaking roof.
The utility model can effectively reduce transporting bracket size, and can reduce weight support frame to a certain extent.Make to prop up
Arrangement of the frame 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, three guide rings and band are respectively used, 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 using pin shaft with set cap.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
Lateral arrangement on road provides biggish space to transport of the material in tunnel close to side.
As shown in Fig. 4 a, Fig. 4 b, for leading chock for drift figure (Fig. 4 a work shape equipped with big magnification cylindricality stabilizing mechanism
State, Fig. 4 b travel position)
Technical solutions of the utility model bring the utility model has the advantages that
1) excavation support can make it possible excavation support lateral arrangement using this technology, make excavation support close to one
Side is not take up the space of material transportation without four-bar mechanism.
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 the function of double leval jib maintenance stability, one
Determine to reduce weight support frame in degree, reduces manufacturing cost.
In concrete application, cylindricality stabilizing mechanism can be triple retractable column, be also possible to double-telescopic upright post, or singly stretch
Contracting column band mechanical extension bar structure.If tunnel is lower, it is also possible to directly adopt single-telescopic prop.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art can readily occur in the technical scope that the utility model discloses
Change or replacement, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should
Subject to the scope of protection of the claims.
Claims (1)
1. a kind of leading chock for drift equipped with big magnification cylindricality stabilizing mechanism, including top beam, column, pedestal, feature exist
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；
The big magnification cylindricality stabilizing mechanism is triple retractable column structure or double-telescopic upright post structure or single-telescopic prop band machine
Tool lengthens rod structure or single-telescopic prop structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820225828.0U CN208280975U (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 |
|---|---|---|---|
| CN201820225828.0U CN208280975U (en) | 2018-02-08 | 2018-02-08 | Leading chock for drift equipped with big magnification cylindricality stabilizing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208280975U true CN208280975U (en) | 2018-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820225828.0U Active CN208280975U (en) | 2018-02-08 | 2018-02-08 | Leading chock for drift equipped with big magnification cylindricality stabilizing mechanism |
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| CN (1) | CN208280975U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222992A (en) * | 2018-02-08 | 2018-06-29 | 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 CN201820225828.0U patent/CN208280975U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222992A (en) * | 2018-02-08 | 2018-06-29 | 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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