CN207944975U - Air return lane advance timbering bottom raising mechanism suitable for soft seat - Google Patents
Air return lane advance timbering bottom raising mechanism suitable for soft seat Download PDFInfo
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- CN207944975U CN207944975U CN201820294827.1U CN201820294827U CN207944975U CN 207944975 U CN207944975 U CN 207944975U CN 201820294827 U CN201820294827 U CN 201820294827U CN 207944975 U CN207944975 U CN 207944975U
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- raising mechanism
- air return
- advance timbering
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Abstract
The utility model discloses a kind of air return lane advance timbering bottom raising mechanisms suitable for soft seat, bottom raising mechanism includes carried bottom jack and piston shoes, the tailpiece of the piston rod of carried bottom jack is directly hinged by axis pin with the engaging lug on pedestal, and the piston end of piston shoes and carried bottom jack is directly connected to.Piston shoes are made of steel plate, and the front end of steel plate tilts.It can arrange that one or more groups of bottom raising mechanisms, carried bottom jack can be arranged in the middle position of pan frontward end or bias the position of side.Pan frontward end lifts bottom amount greatly, and the ratio pressure that carried bottom jack acts on bottom plate is small, and overall structure is simple, easy care, and manufacturing cost is low.
Description
Technical field
The utility model is related to a kind of coal-mine hydraulic support more particularly to a kind of air return lane suitable for soft seat are advanced
Holder bottom raising mechanism.
Background technology
The coal working face fully-mechanized mining equipment of modernization is made of hydraulic support, coalcutter, scrapper conveyor.Coalcutter is responsible for broken
Coal, scrapper conveyor are responsible for coalingging, and hydraulic support is responsible for working face equipment and pedestrian provides safe space.Fully-mechanized mining equipment both improved
Coal mining efficiency, and manpower is saved, rapid promotion and application are obtained in modern mine in recent years.
Coal working face length is generally 200 meters or so.There are coal columns, coal pillar width to be generally 20 between each working face
Rice.In recent years, as coal resources gradually decrease, the attention of resource exploitation rate is gradually increased in coal mine.Coal between working face
Column width is reduced to 10 meters by 20 meters, and Part Coal Mine is even reduced to 8 meters.
The reduction of working face coal column causes the unstable of working face both sides tunnel, and leading chock for drift is by holder before
Class apolegamy equipment has gradually become standard configuration equipment.
Leading chock for drift is divided into transportation roadway advance timbering and air return lane advance timbering.
Transportation roadway is coal channel, and be disposed with elevating conveyor, crusher, belt feeder and equipment train in tunnel etc. to set
Standby, the maintenance that coal mine carries out transportation roadway is all relatively more, and haulage drift bottom plate takes hardening measure mostly.Air return lane is due to arrangement
Equipment is less, and many coal mines are in order to save cost, with regard to not hardened to its bottom plate.In this way, if bottom plate is soft or relatively broken,
Influence just is brought on the use of air return lane advance timbering.
Bottom plate it is soft or it is relatively broken be easy for that pedestal is caused to sink, influence holder walking.Middle bracket is in case of this feelings
Condition just needs to configure bottom raising mechanism on holder.Advance timbering is different from middle bracket structure type, middle bracket bottom raising mechanism
It is not suitable for the use of advance timbering.
There is an urgent need for configure a kind of bottom raising mechanism of high efficient and reliable for the air return lane advance timbering of with soft seat or relatively broken bottom plate.
The prior art one：
As shown in Fig. 1 a, Fig. 1 b, Fig. 1 c, in set bottom raising mechanism air return lane advance timbering, this advance timbering bottom raising mechanism
Setting is symmetrical on the outside of 1 middle part of pedestal, and two groups are arranged on each pedestal 1.
Bottom raising mechanism is formed by lifting bottom sleeve 2 and carried bottom jack 3.Carried bottom jack is mounted among lift bottom sleeve, lift
Bottom sleeve 2 is bolted on advance timbering pedestal 1.
There are holes, carried bottom jack 3 will not be pressed onto pedestal 1 when stretching out on 1 outermost side floor panels of advance timbering pedestal.
The shortcomings that prior art one：
Carried bottom jack is arranged in middle part, and the pan frontward end amount of lifting is smaller when carried bottom jack is stretched out；Carried bottom jack is stretched
It is small with contacts baseplate area when going out, it influences to lift bottom effect；It is complicated.
The prior art two：
As shown in Fig. 2 a, Fig. 2 b, preposition bottom raising mechanism air return lane advance timbering, this advance timbering bottom raising mechanism setting exists
Pedestal front is placed in the middle, and one group is arranged on each pedestal 1.
Bottom raising mechanism is formed by lifting bottom sleeve 2 and carried bottom jack 3 and piston shoes 4.Carried bottom jack is mounted on lift bottom set
Cylinder is intermediate, and lift bottom sleeve weld is fixed on bracket base.
Piston shoes are connected by axis pin with advance timbering pedestal, after carried bottom jack is stretched out on top to piston shoes.
The shortcomings that prior art two：
The tie point of piston shoes is close with carried bottom jack distance, is easy to form internal stress, influences to lift bottom effect；It is complicated,
Piston shoes are easy to cause secondary destruction to bottom plate in walking.
Utility model content
The purpose of this utility model is to provide a kind of air return lane advance timbering bottom raising mechanism suitable for soft seat.
The purpose of this utility model is achieved through the following technical solutions：
The air return lane advance timbering bottom raising mechanism suitable for soft seat of the utility model, the bottom raising mechanism include lift bottom
The tailpiece of the piston rod of jack and piston shoes, the carried bottom jack is directly connect with the engaging lug on pedestal, the piston shoes with it is described
The piston end of carried bottom jack is directly connected to.
What the utility model embodiment provided it can be seen from above-mentioned technical solution provided by the utility model is suitable for soft
The air return lane advance timbering bottom raising mechanism of bottom plate, pan frontward end lift bottom amount greatly, and the ratio pressure that carried bottom jack acts on bottom plate is small, whole
Body is simple in structure, easy care, and manufacturing cost is low.
Description of the drawings
Fig. 1 a are the side structure schematic view that bottom raising mechanism air return lane advance timbering is set in the prior art one；
Fig. 1 b are the overlooking structure diagram that bottom raising mechanism air return lane advance timbering is set in the prior art one；
Fig. 1 c are the structural schematic diagram of the bottom raising mechanism in the prior art one；
Fig. 2 a are the overlooking structure diagram of two preposition bottom raising mechanism air return lane advance timbering pedestal of the prior art；
Fig. 2 b are the A-A of Fig. 2 a to structural schematic diagram；
Fig. 3 is the side view for the air return lane advance timbering bottom raising mechanism suitable for soft seat that the utility model embodiment provides
Structural schematic diagram；
Fig. 4 is the vertical view for the air return lane advance timbering bottom raising mechanism suitable for soft seat that the utility model embodiment provides
Structural schematic diagram.
In figure：1, pedestal, 2, lift bottom sleeve, 3, carried bottom jack, 4, piston shoes.
Specific implementation mode
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 air return lane advance timbering bottom raising mechanism suitable for soft seat of the utility model, preferable specific implementation mode
It is：
The bottom raising mechanism includes carried bottom jack and piston shoes, the tailpiece of the piston rod of the carried bottom jack directly on pedestal
Engaging lug connection, the piston shoes and the piston end of the carried bottom jack are directly connected to.
The tailpiece of the piston rod of the carried bottom jack is hinged by axis pin with the engaging lug on the pedestal.
The piston shoes are made of steel plate, and the front end of the steel plate tilts.
The air return lane advance timbering is equipped with one or more groups of bottom raising mechanisms.
When the air return lane advance timbering is equipped with one group of bottom raising mechanism, the carried bottom jack of this group of bottom raising mechanism is arranged in
The middle position of pan frontward end or the position for biasing side.
The air return lane advance timbering bottom raising mechanism suitable for soft seat of the utility model, pan frontward end lift bottom amount greatly, lift
The ratio pressure that bottom jack acts on bottom plate is small, and overall structure is simple, easy care, and manufacturing cost is low.
Specific embodiment：
As shown in Figure 3, Figure 4, the setting of advance timbering bottom raising mechanism is placed in the middle in 1 front of pedestal, is arranged one on each pedestal 1
Group.
Bottom raising mechanism includes carried bottom jack 3 and piston shoes 4, carried bottom jack tailpiece of the piston rod directly with the engaging lug on pedestal
Connection, the piston end of carried bottom jack are connect with piston shoes.
Carried bottom jack can be rotated around the axis pin in ear mount, and the direction for stretching out power is adjustable.
The steel plate that piston shoes are mainly tilted by front end is made, and when carried bottom jack is stretched out, bottom plate is acted on by piston shoes.With
To increase the forced area of bottom plate, reduction ratio pressure.
In the utility model, carried bottom jack acts on advance timbering pan frontward end, facilitates and lifts pan frontward end.Pedestal
Front end is stretched out otic placode and is directly connect with carried bottom jack.Piston shoes are directly connect with carried bottom jack piston end, carried bottom jack with
Piston shoes form bottom raising mechanism.The steel plate that piston shoes are mainly tilted by front end is made, and for increasing the forced area of bottom plate, reduces ratio
Pressure.Piston shoes are used for increasing the area that jack acts on bottom plate, are suitable for soft seat or relatively broken bottom plate.Overall structure is simple,
Bottom raising mechanism only needs carried bottom jack and piston shoes.Easy to maintain, manufacturing cost is low.
In specific implementation, bottom raising mechanism is arranged in advance timbering pan frontward end, and one can also can be biased between two parties on position
Side can arrange that one group can also arrange two or more sets in quantity.
The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not
It is confined to this, any one 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 scope of protection of the utility model should
Subject to the scope of protection of the claims.
Claims (5)
1. a kind of air return lane advance timbering bottom raising mechanism suitable for soft seat, which is characterized in that the bottom raising mechanism includes lift
The tailpiece of the piston rod of bottom jack and piston shoes, the carried bottom jack is directly connect with the engaging lug on pedestal, the piston shoes and institute
The piston end for stating carried bottom jack is directly connected to.
2. the air return lane advance timbering bottom raising mechanism according to claim 1 suitable for soft seat, which is characterized in that described
The tailpiece of the piston rod of carried bottom jack is hinged by axis pin with the engaging lug on the pedestal.
3. the air return lane advance timbering bottom raising mechanism according to claim 2 suitable for soft seat, which is characterized in that described
Piston shoes are made of steel plate, and the front end of the steel plate tilts.
4. the air return lane advance timbering bottom raising mechanism according to claim 1,2 or 3 suitable for soft seat, feature exists
In the air return lane advance timbering is equipped with one or more groups of bottom raising mechanisms.
5. the air return lane advance timbering bottom raising mechanism according to claim 4 suitable for soft seat, which is characterized in that work as institute
When stating air return lane advance timbering equipped with one group of bottom raising mechanism, the carried bottom jack of this group of bottom raising mechanism is arranged in the residence of pan frontward end
Middle position or the position for biasing side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820294827.1U CN207944975U (en) | 2018-03-02 | 2018-03-02 | Air return lane advance timbering bottom raising mechanism suitable for soft seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820294827.1U CN207944975U (en) | 2018-03-02 | 2018-03-02 | Air return lane advance timbering bottom raising mechanism suitable for soft seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207944975U true CN207944975U (en) | 2018-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820294827.1U Active CN207944975U (en) | 2018-03-02 | 2018-03-02 | Air return lane advance timbering bottom raising mechanism suitable for soft seat |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386220A (en) * | 2018-03-02 | 2018-08-10 | 中煤北京煤矿机械有限责任公司 | Air return lane advance timbering bottom raising mechanism suitable for soft seat |
-
2018
- 2018-03-02 CN CN201820294827.1U patent/CN207944975U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386220A (en) * | 2018-03-02 | 2018-08-10 | 中煤北京煤矿机械有限责任公司 | Air return lane advance timbering bottom raising mechanism suitable for soft seat |
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