CN203847140U - Self-moving advance support bracket - Google Patents
Self-moving advance support bracket Download PDFInfo
- Publication number
- CN203847140U CN203847140U CN201420077837.1U CN201420077837U CN203847140U CN 203847140 U CN203847140 U CN 203847140U CN 201420077837 U CN201420077837 U CN 201420077837U CN 203847140 U CN203847140 U CN 203847140U
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- CN
- China
- Prior art keywords
- units
- bracing
- self
- support
- support bracket
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- 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.)
- Expired - Lifetime
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- 239000003245 coal Substances 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 abstract 1
- 238000005065 mining Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
Abstract
The utility model particularly discloses a gateway self-moving advance support bracket for a coal working face. By the aid of the self-moving advance support bracket, problems of poor orientation of an existing advance support bracket and easiness in damaging roofs during bracing can be solved. The self-moving advance support bracket comprises two support units. The two support units are arranged in the front-back direction, a thrust jack is arranged between the two support units, each support unit comprises two pairs of bracing units which are distributed in the left-right direction, each pair of bracing units comprises two bracing units, a crossed slider is arranged between each pair of bracing units and is connected with the two bracing units, a bracket adjusting jack is arranged between the two pairs of bracing units, a side protective plate is arranged on the top of the outer side of each left bracing unit, each bracing unit comprises a base and a top beam which are distributed in the up-down direction, and retractable barrels and upright columns are arranged among the bases and the top beams. Falling of roofs can be effectively completely eradicated by the aid of the self-moving advance support bracket, and the self-moving advance support bracket has the advantages of simple structure, convenience in self-moving and low cost.
Description
Technical field
The utility model relates to support apparatus under coal mine, is specially a kind of coal-face crossheading automatic moving type advance support rack.
Background technology
Under coal mine, ahead work face supporting is one of Focal point and difficult point of fully-mechanized mining working supporting.On the one hand, due to the stack of mine pressure with need the increase of supporting area, face end and advance support are had higher requirement; On the other hand, the increase of fully-mechanized mining working number of devices, the increasing of equipment size, personnel increase, and the complexity of operation, higher to face end and advance support reliability requirement.
Forepoling hydraulic support is the direction of face end supporting development.The advance support rack using at present exists the guidance quality of advancing poor, need arrange and try to stop people from fighting each other a little above; Support is longer along the bearing length of crossheading direction, and while moving frame, top board large area loses support, through stressed top board destructible repeatedly repeatedly.
Summary of the invention
There is guidance quality problem poor and top board destructible while supporting in order to solve existing advance support rack in the utility model, a kind of automatic moving type advance support rack is provided.
The utility model is to adopt following technical scheme to realize: automatic moving type advance support rack, two supporting unit that arrange before and after comprising, between two supporting unit, be provided with advancing jack, two pairs of support units that each supporting unit is distributed by left and right form, every pair of support unit is comprised of two support units, between every pair of support unit, be provided with the crosshead shoe being connected with two support units, and between two pairs of support units, be provided with and adjust frame jack, the support unit outside top that is positioned at left side is provided with side guard board, each support unit comprises base and the back timber distributing up and down, between base and back timber, be provided with retracting cylinder and column.
During operation, the supporting unit back timber in the place ahead declines, a step pitch of advancing jack reach, the a pair of support unit back timber in right forward side rises and reaches setting load, shrink the side of left side support unit and protect top, and reduce after the back timber of this support unit, shrink step pitch of advancing jack, the back timber that rises left side support unit reaches setting load, and the side that rises left side support unit is protected top.Overcome existing advance support rack and had guidance quality problem poor and top board destructible while supporting.
The utility model reasonable in design is reliable, has effectively stopped the generation of top board across the phenomenon that falls, support-moving step pitch 1700mm, to reduce the support top number of times to top board repeatedly, adapt to efficient requirement, and guidance quality is better, have advantages of simple in structure, certainly move convenient and cost is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the schematic side view of Fig. 1.
In figure: 1-advancing jack, 2-support unit, 3-crosshead shoe, 4-adjusts frame jack, 5-side guard board, 6-base, 7-back timber, 8-retracting cylinder, 9-column.
The specific embodiment
Automatic moving type advance support rack, two supporting unit that arrange before and after comprising, between two supporting unit, be provided with advancing jack 1, two pairs of support units 2 that each supporting unit is distributed by left and right form, every pair of support unit 2 is comprised of two support units 2, between every pair of support unit 2, be provided with the crosshead shoe 3 being connected with two support units 2, and between two pairs of support units 2, be provided with and adjust frame jack 4, support unit 2 outside top that are positioned at left side are provided with side guard board 5, each support unit 2 comprises base 6 and the back timber 7 distributing up and down, between base 6 and back timber 7, be provided with retracting cylinder 8 and column 9.
Claims (1)
1. an automatic moving type advance support rack, it is characterized in that: two supporting unit that arrange before and after comprising, between two supporting unit, be provided with advancing jack (1), two pairs of support units (2) that each supporting unit is distributed by left and right form, every pair of support unit (2) is comprised of two support units (2), between every pair of support unit (2), be provided with the crosshead shoe (3) being connected with two support units (2), and between two pairs of support units (2), be provided with and adjust frame jack (4), support unit (2) outside top that is positioned at left side is provided with side guard board (5), each support unit (2) comprises base (6) and the back timber (7) distributing up and down, between base (6) and back timber (7), be provided with retracting cylinder (8) and column (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420077837.1U CN203847140U (en) | 2014-02-24 | 2014-02-24 | Self-moving advance support bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420077837.1U CN203847140U (en) | 2014-02-24 | 2014-02-24 | Self-moving advance support bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203847140U true CN203847140U (en) | 2014-09-24 |
Family
ID=51560174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420077837.1U Expired - Lifetime CN203847140U (en) | 2014-02-24 | 2014-02-24 | Self-moving advance support bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203847140U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104790997A (en) * | 2015-03-26 | 2015-07-22 | 北京科技大学 | Self-moving advance temporary supporting hydraulic bracket used for fully-mechanized excavation |
| CN105201536A (en) * | 2015-08-31 | 2015-12-30 | 中国矿业大学 | Self-moving whole-section advanced supporting equipment |
| CN106761874A (en) * | 2017-03-31 | 2017-05-31 | 河南理工大学 | A kind of automatic moving type forepoling hydraulic support with side guard plate |
| CN110094220A (en) * | 2019-04-29 | 2019-08-06 | 北京诚田恒业煤矿设备有限公司 | A kind of mining two columns guide rod type erosion control tunnel advanced hydraulic support |
| CN110284916A (en) * | 2019-05-05 | 2019-09-27 | 辽宁大学 | Erosion control alley hydraulic support unit and hydraulic support |
-
2014
- 2014-02-24 CN CN201420077837.1U patent/CN203847140U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104790997A (en) * | 2015-03-26 | 2015-07-22 | 北京科技大学 | Self-moving advance temporary supporting hydraulic bracket used for fully-mechanized excavation |
| CN104790997B (en) * | 2015-03-26 | 2017-03-01 | 北京科技大学 | A kind of certainly mobile advanced gib hydraulic support for comprehensive pick |
| CN105201536A (en) * | 2015-08-31 | 2015-12-30 | 中国矿业大学 | Self-moving whole-section advanced supporting equipment |
| CN106761874A (en) * | 2017-03-31 | 2017-05-31 | 河南理工大学 | A kind of automatic moving type forepoling hydraulic support with side guard plate |
| CN110094220A (en) * | 2019-04-29 | 2019-08-06 | 北京诚田恒业煤矿设备有限公司 | A kind of mining two columns guide rod type erosion control tunnel advanced hydraulic support |
| CN110284916A (en) * | 2019-05-05 | 2019-09-27 | 辽宁大学 | Erosion control alley hydraulic support unit and hydraulic support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140924 |
|
| CX01 | Expiry of patent term |