CN202250135U - Low-position sublevel caving hydraulic support - Google Patents
Low-position sublevel caving hydraulic support Download PDFInfo
- Publication number
- CN202250135U CN202250135U CN2011203880289U CN201120388028U CN202250135U CN 202250135 U CN202250135 U CN 202250135U CN 2011203880289 U CN2011203880289 U CN 2011203880289U CN 201120388028 U CN201120388028 U CN 201120388028U CN 202250135 U CN202250135 U CN 202250135U
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- China
- Prior art keywords
- caving
- hydraulic support
- stage
- inserting plate
- low
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Abstract
The utility model provides a low-position sublevel caving hydraulic support, also called two-stage telescopic inserting plate type sublevel caving hydraulic support. The low-position sublevel caving hydraulic support comprises a top beam 1, an upright, a base, a caving shield 2, a four-link mechanism, and a caving mechanism consisting of a tail beam and inserting plates, wherein the caving mechanism of the low-position sublevel caving hydraulic support is a two-stage telescopic inserting plate type caving mechanism and comprises a tail beam 3, a first-state inserting plate 4, a second-stage pile 5 and a double-telescopic jack 6, the first-state inserting plate is embedded on a slideway in the body of the tail beam, the second-stage inserting plate is embedded on a slideway in the first-stage inserting plate, the double-telescopic jack is articulated between the tail beam and the second-stage inserting plate. The double-telescopic jack is controlled to push the two stages of inserting plates to stretch out or contract back to close or open a caving port. The support is applied to a full-mechanized caving mining face, and the adaptability of the support to the change of support height can be improved on the basis of the characteristic that the two-stage telescopic inserting plate type caving mechanism has a large telescopic stroke; on the condition of a shorter inserting plate length, the shield ranges of the tail beam and the inserting plates are increased during high-level support; when the support height is low, the inserting plates are prevented from colliding with a conveyer at the rear part; meanwhile, the conveyer at the rear part can be assembled conveniently.
Description
Technical field
The utility model relates to the coal mine fully-mechanized mining caving roof coal hydraulic support, particularly a kind of strong to stent support height size compliance, put the flexible big low caving coal hydraulic support of stroke of coal mechanism.
Background technology
The coal mechanism of putting of the two pillar low caving coal hydraulic supports that at present, fully mechanized coal face uses under the coal mine all adopts the scalable plate structure of single-stage.Adopt this low caving coal hydraulic support of putting coal mechanism; Particularly big mining height two pillar low caving coal hydraulic supports are when bearing height is higher; Also can't all protect the problem of rear portion drag conveyor after causing tail beam flashboard all to stretch out easily; A large amount of spoils are emitted put, pour in the drag conveyor of rear portion, influence ordinary production.And when bearing height was low, the tail boom bottom reached in the drag conveyor of rear portion easily, causes chain rupture accident.Therefore, influence the use of low caving coal hydraulic support, hinder the performance of drawing effectiveness.
Summary of the invention
Adopt the flexible plate of single-stage to put the deficiency that coal mechanism can not the well adapted bearing height changes fully mechanized coal face greatly in order to overcome existing low caving coal hydraulic support; The utility model provides a kind of low caving coal hydraulic support; The flexible stroke of its plate is big; It is big to put coal mechanism shielding scope, can adapt to bearing height well and change fully mechanized coal face greatly.
The utility model is to solve the problems of the technologies described above the technical scheme that is adopted to be:
Low caving coal hydraulic support is by back timber, column, base, caving shield, quadric chain, and is made up of the coal mechanism etc. of putting that tail boom and plate constitute.It puts coal mechanism is that the flexible board plug type of two-stage is put coal mechanism.This is put coal mechanism and is made up of tail boom, one-level plate, secondary plate and two flexible jack etc.In the tail boom body, be equipped with slideway in the one-level plate body; The one-level plate is flush-mounted on the slideway in the tail boom body, and the secondary plate is flush-mounted on the slideway in the one-level plate body; Two flexible jack are articulated between tail boom and the secondary plate.Handling two flexible jack can make the two-stage plate realize stretching.
The beneficial effect of the utility model is:
The flexible board plug type of the two-stage of low caving coal hydraulic support is put coal mechanism, and the flexible stroke of plate is increased greatly.When keeping short tail boom length, improved the shielding scope of sublevel caving hydrau lic support tail boom and plate under high-order holding state effectively, avoid the deficiency of one-level plate extension elongation; And when bearing height was low, the plate shrinkage amplitude was big, can avoid tail boom to run into the rear portion drag conveyor, has made things convenient for the supporting of rear portion drag conveyor, improved the compliance of support tail boom to bearing height.
Description of drawings
Fig. 1 is the schematic perspective view of the utility model low caving coal hydraulic support structure.
Fig. 2 is that the master of the utility model low caving coal hydraulic support structure looks sketch map.
Fig. 3 is the structure schematic top plan view that the flexible board plug type of two-stage is put coal mechanism.
Fig. 4 is the structure A-A cross-sectional schematic that the flexible board plug type of two-stage is put coal mechanism among Fig. 3.
Among the figure: 1-back timber, 2-caving shield, 3-tail boom, 4-one-level plate, 5-secondary plate, the two flexible jack of 6-.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Structure at Fig. 1, the low caving coal hydraulic support of the utility model shown in 2.This low caving coal hydraulic support is claimed two-stage stretch board plug type, two pillar low caving coal hydraulic supports again; Mainly by back timber 1, column, base, caving shield 2, quadric chain, and tail boom and plate constitute put composition such as coal mechanism.Its coal mechanism of putting is that the flexible board plug type of two-stage is put coal mechanism; Mainly constitute by tail boom 3, one-level plate 4, secondary plate 5, two flexible jack 6.Tail boom 3, one-level plate 4, secondary plate 5 all are the box structures that is welded by steel plate; Be provided with slideway in the tail boom body, one-level plate 4 is inlaid in the slideway of tail boom body; Be provided with slideway in the one-level plate body, secondary plate 5 is inlaid in the slideway of one-level plate body.Two flexible jack 6 are installed in the secondary plate 5, and its two ends are through bearing pin, and are hinged with tail boom 3, secondary plate 5 respectively.
Flexible through the two flexible jack between hydraulic circuit control tail boom 3 and the secondary plate 56; One-level plate 4 is slided along the slideway in the one-level plate 4 along the slideway in the tail boom 3, secondary plate 5; Realize stretching out or regaining of one-level plate 4, secondary plate 5, close or open coal discharge outlet.One-level plate 4 relies on self structure with secondary plate 5, realizes guiding and spacing.Control tail boom jack is flexible can to make tail boom 3 swing up and down, to become flexible the top coal or to put coal.Secondary plate 5 front ends are provided with the gear shaping that is used for inserting coal.
The utlity model has the flexible board plug type of two-stage and put coal mechanism, so claim two-stage flexible board plug type low caving coal hydraulic support.The flexible board plug type of two-stage is put coal mechanism; Improved the flexible stroke of plate effectively; Help when keeping than the short-tail beam length; Increase the tail boom of low caving coal hydraulic support under high-order holding state and the shielding scope of plate, improve the compliance of support, made things convenient for the supporting of rear portion transporter bearing height.
The prototype of the foregoing description low caving coal hydraulic support is little plate two pillar low caving coal hydraulic supports.It is suitable equally for little plate four-column type low caving coal hydraulic support that the flexible board plug type of two-stage is put coal mechanism.
Claims (4)
1. low caving coal hydraulic support; Comprise back timber (1), column, base, caving shield (2), quadric chain; And put coal mechanism by what tail boom and plate constituted; It is characterized in that: the said coal mechanism of putting is that the flexible board plug type of two-stage is put coal mechanism, and this mechanism comprises tail boom (3), one-level plate (4), secondary plate (5), two flexible jack (6); In tail boom (3) body, be provided with slideway in one-level plate (4) body, one-level plate (4) is flush-mounted on the slideway in tail boom (3) body, and secondary plate (5) is flush-mounted on the slideway in one-level plate (4) body; Two flexible jack (6) are articulated between tail boom (3) and the secondary plate (5).
2. low caving coal hydraulic support according to claim 1 is characterized in that: said low caving coal hydraulic support is little board plug type low caving coal hydraulic support.
3. low caving coal hydraulic support according to claim 2 is characterized in that: said little board plug type low caving coal hydraulic support is two pillar low caving coal hydraulic supports.
4. low caving coal hydraulic support according to claim 2 is characterized in that: said little board plug type low caving coal hydraulic support is the four-column type low caving coal hydraulic support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203880289U CN202250135U (en) | 2011-10-13 | 2011-10-13 | Low-position sublevel caving hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203880289U CN202250135U (en) | 2011-10-13 | 2011-10-13 | Low-position sublevel caving hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202250135U true CN202250135U (en) | 2012-05-30 |
Family
ID=46111393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203880289U Withdrawn - After Issue CN202250135U (en) | 2011-10-13 | 2011-10-13 | Low-position sublevel caving hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202250135U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352762A (en) * | 2011-10-13 | 2012-02-15 | 兖州煤业股份有限公司 | Low-position coal-caving hydraulic bracket |
| CN102808639A (en) * | 2012-08-24 | 2012-12-05 | 郑州煤机综机设备有限公司 | Thin-shell hydraulic support |
| CN109630164A (en) * | 2018-12-04 | 2019-04-16 | 安徽省皖北煤电集团有限责任公司 | A kind of extensible hydraulic support |
-
2011
- 2011-10-13 CN CN2011203880289U patent/CN202250135U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352762A (en) * | 2011-10-13 | 2012-02-15 | 兖州煤业股份有限公司 | Low-position coal-caving hydraulic bracket |
| CN102352762B (en) * | 2011-10-13 | 2015-09-23 | 兖州煤业股份有限公司 | Low caving coal hydraulic support |
| CN102808639A (en) * | 2012-08-24 | 2012-12-05 | 郑州煤机综机设备有限公司 | Thin-shell hydraulic support |
| CN109630164A (en) * | 2018-12-04 | 2019-04-16 | 安徽省皖北煤电集团有限责任公司 | A kind of extensible hydraulic support |
| CN109630164B (en) * | 2018-12-04 | 2020-06-02 | 安徽恒源煤电股份有限公司 | Extensible hydraulic support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120530 Effective date of abandoning: 20150923 |
|
| RGAV | Abandon patent right to avoid regrant |