CN201062524Y - Two-post secured low-roof coal hydraulic bracket - Google Patents
Two-post secured low-roof coal hydraulic bracket Download PDFInfo
- Publication number
- CN201062524Y CN201062524Y CNU2007200914164U CN200720091416U CN201062524Y CN 201062524 Y CN201062524 Y CN 201062524Y CN U2007200914164 U CNU2007200914164 U CN U2007200914164U CN 200720091416 U CN200720091416 U CN 200720091416U CN 201062524 Y CN201062524 Y CN 201062524Y
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- jack
- hinged
- back timber
- plate
- caving
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Abstract
The utility model discloses a double-column shielding type low position top coal caving hydraulic supporting frame. The utility model comprises an open crotch type base seat, and two hydraulic telescopic vertical columns arranged on an open crotch type base seat, and the top ends of the hydraulic telescopic vertical columns are respectively hinged with a top beam; the rear part of the top beam is hinged at the upper part of a shielding beam; the lower part of the shielding beam is hinged with the open crotch type base seat through a positive four-connecting rod mechanism; a balancing jack is arranged between the rear part of the top beam and the shielding beam; a box shaped tail beam is hinged at the lower end of the shielding beam,, and a tail beam jack is arranged between the lower part of the tail beam and the lower part of the shielding beam; a sliding track, an inserting plate arranged in the sliding track and an inserting plate jack driving the inserting plate to reciprocate along the sliding track are arranged in the box body of the tail beam. The utility model has the advantages that the shielding type supporting frame and the low order coal caving technology are organically integrated, the superiorities of the both are blended, the adoption of the double-column top coal caving supporting frame causes the structure to be simple and compact, and the forward center distance and backward center distance can be effectively reduced; the utility model is convenient for the descending, moving operation and ascending operations of the supporting frame.
Description
Technical field
The utility model relates to and is used for colliery underground mining working surface hydraulic support, especially relates to the two column protected type low caving coal hydraulic support.
Background technology
Sublevel caving hydrau lic support is after fully-mechanized mining applies to the top coal caving work plane, to make the top coal caving technology enter a new developing stage along with the top coal caving method is arisen at the historic moment.Promoting the use of of fully mechanized caving coal technology, enlarged the scope of application of fully-mechanized mining, the mining system and the organism of production of mine have been simplified, the labor productivity and the output of fully-mechanized mining working have been improved significantly, reduce the cost of production of coal, on Coal Production, obtained significant techno-economic effect.
Present employed sublevel caving hydrau lic support generally adopts four post support shield type hydraulic support low level to put the coal technology, and its taking and placing technology has been attained maturation.But a large amount of inputs along with the high-yield and high-efficiency mine construction, the increasing of conveyer, coal-winning machine equipment size, make and the also corresponding increasing of size of hydraulic support therefore, the operation of hydraulic support and the management of the forward and backward conveyer of exploitation work plane have been brought many difficulties.
The utility model content
The utility model purpose is to provide a kind of two column protected type low caving coal hydraulic support that improves exploitation work plane control and management top board efficient.
For achieving the above object, the utility model can be taked following technical proposals:
Two column protected type low caving coal hydraulic support described in the utility model comprises the easy opened base, is arranged on two hydraulically extensible columns on the described easy opened base, and described two hydraulically extensible column tops are hinged with back timber respectively; Described back timber rear portion and caving shield top are hinged; The easy opened base is provided with the passing jack; Described caving shield bottom is hinged by positive four connecting rods and easy opened base; Between back timber rear portion and caving shield, be provided with balance jack; Be hinged with the tail boom of box structure in the caving shield lower end, between described tail boom bottom and caving shield bottom, be provided with the tail boom jack; In the casing of tail boom, be provided with slideway, be arranged on the plate in the slideway, the plate jack that the driving plate moves back and forth along slideway; Take the control mode that links between tail boom jack and the plate jack; Be provided with in the front portion of back timber with the hydraulically extensible column and be in the preceding atomization mechanism that links when falling post; Be provided with at the rear portion of back timber with the plate jack and be in the back atomization mechanism that links when regaining.
Horizontal edge edge, lower end along described plate is provided with tooth bar.
Described back timber is an overall structure, is hinged with face guard at the back timber front end, and back timber is provided with the wall supporting jack, and the push rod of described wall supporting jack and described face guard rear portion are hinged.
Described easy opened base is provided with the passing jack.
The utility model advantage just is shield and low level are put the combination of coal technology, merges the advantage of the two, adopts the low caving coal structure of caving shield bottom magnetic tape trailer beam and plate, handles the plate jack plate is slided on slideway, carries out flexible; When plate stretches out, block spoil and flow into the rear portion conveyer, regain plate when putting coal and get final product; Handle the tail boom jack tail boom is swung up and down, to become flexible the top coal or to put coal; Utilize the size of the flexible adjustment coal discharge outlet of tail boom jack and plate jack.Its major advantage is presented as:
1, coal discharge outlet is low and continuous, and drawing effectiveness is good, does not have the back loss, the coal yield height;
2, adopt positive four connecting rods that caving shield bottom and easy opened base are hinged, can guarantee that support has reliable stability, can guarantee that again support has remarkable passage, make support that two remarkable passages be arranged on work plane;
3, it is big that the coal space is put at the rear portion, and the tail boom pendulum angle is big, helps the inbreak of top coal; Lower end horizontal edge along plate can also carry out certain fragmentation to coarse coal along being provided with tooth bar, makes coal discharge outlet be difficult for stopping up;
4, regulate the coal discharge outlet size with the swing flexible and tail boom of plate, the discharging amount of control coal guarantees the transportation of rear portion conveyer;
5, will take the control mode that links between tail boom jack and the plate jack, no matter operate or during maloperation ending beam, plate is automatic drawing back all, plate reaches and produces spring chain phenomenon in the transporter of rear portion when preventing that tail boom from regaining.
6, the setting of balance jack between back timber and the caving shield, solve existing four post sublevel caving hydrau lic supports and the forward and backward column unbalance stress of support phenomenon in weak seam, occurred, improved the ability that back timber adapts to top board of adjusting, enlarged support adaptation top board and made a concerted effort to make the scope that point changes, improved the relation of two column holders adaptation greatly with top coal country rock.
7, base adopts the easy opened structure, and front end is provided with bottom raising mechanism, and row's float coal performance is good, tries to stop people from fighting each other smoothly, and can effectively prevent the base front end bundle end, reduces the workload of cleaning float coal, has reduced working strength of workers.
8, back timber is an overall structure, is provided with the face guard structure at its front end body, and therefore, face guard can reverse and be used for supporting and live rib, preventing coal wall caving, and when trying to stop people from fighting each other, recoverable again face guard, compact conformation.
Simultaneously, it is simple in structure, compact to take two post sublevel caving hydrau lic supports to make, can effectively reduce forward and backward slide center to center distance; Be more conducive to that support falls, moves, lift operations, especially adapt to inclined seam and semi-steep in use in the caving fully mechanized face of hard coal seam and three-soft seam condition.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the left view of Fig. 1.
The specific embodiment
As shown in the figure, two column protected type low caving coal hydraulic support described in the utility model, comprise easy opened base 1, be arranged on two hydraulically extensible columns 2 on the described easy opened base 1, described two hydraulically extensible columns 2 tops are hinged with integrally-built back timber 3 respectively; Described back timber 3 rear portions and caving shield 4 tops are hinged; Described caving shield 4 bottoms are hinged with easy opened base 1 by positive four connecting rods 5; Between back timber 3 rear portions and caving shield 4, be provided with balance jack 6; Be hinged with the tail boom 7 of box structure in caving shield 4 lower ends, between described tail boom 7 bottoms and caving shield 4 bottoms, be provided with tail boom jack 8; In the case chamber of tail boom 7, be provided with slideway, be arranged on plate 9 in this slideway, drive the plate jack 10 that this plate 9 moves back and forth along slideway.For preventing that coal discharge outlet from stopping up and coarse coal carried out certain fragmentation, along the lower end horizontal edge of plate 9 along being provided with tooth bar 11.For preventing mining area's coal wall caving, be hinged with face guard 12 at back timber 3 front ends, back timber 3 is provided with wall supporting jack 13, and the push rod of described wall supporting jack 13 and described face guard 12 rear portions are hinged; Be provided with at easy opened base 1 front end and lift end jack 14, so not only improved row's float coal performance, make and try to stop people from fighting each other more smoothly, and can prevent effectively that easy opened base 1 front end from pricking the end, reduce the workload of cleaning float coal, reduced working strength of workers.For ease of moving of support, easy opened base 1 is provided with passes jack 15; To take the control mode that links between tail boom jack 8 and the plate jack 10, therefore, no matter operate or maloperation when regaining tail boom 7, plate 9 is automatic drawing back all, and plate 9 reaches and produces spring chain phenomenon in the transporter of rear portion when preventing that tail boom 7 from regaining; Be provided with in the front portion of back timber 3 with hydraulically extensible column 2 and be in the preceding atomization mechanism that links when falling post, like this, when falling hydraulically extensible column 2 and move forward support, preceding atomization mechanism is opened water spray dust thereupon, be in the back atomization mechanism that links when regaining and be provided with at the rear portion of back timber 3 with plate jack 10, when regaining plate 9 and put coal after atomization mechanism open water spray immediately; Therefore, no matter traversing carriage is still put coal all can be played good dust-laying effect, has improved the work situation of exploitation work plane.
Claims (4)
1. a two column protected type low caving coal hydraulic support comprises easy opened base (1), is arranged on two hydraulically extensible columns (2) on the described easy opened base (1), and described two hydraulically extensible column (2) tops are hinged with back timber (3) respectively; It is characterized in that: described back timber (3) rear portion and caving shield (4) top are hinged; Described caving shield (4) bottom is hinged by positive four connecting rods (5) and easy opened base (1); Be provided with at easy opened base (1) front end and lift end jack (14); Between back timber (3) rear portion and caving shield (4), be provided with balance jack (6); Be hinged with the tail boom (7) of box structure in caving shield (4) lower end, between described tail boom (7) bottom and caving shield (4) bottom, be provided with tail boom jack (8); In the case chamber of tail boom (7), be provided with slideway, be arranged on the plate (9) in the slideway, the plate jack (10) that driving plate (9) moves back and forth along slideway; Take the control mode that links between tail boom jack (8) and the plate jack (10); Be provided with in the front portion of back timber (3) with hydraulically extensible column (2) and be in the preceding atomization mechanism that links when falling post; Be provided with at the rear portion of back timber (3) with plate jack (10) and be in the back atomization mechanism that links when regaining.
2. two column protected type low caving coal hydraulic support according to claim 1 is characterized in that: the horizontal edge edge, lower end along described plate (9) is provided with tooth bar (11).
3. two column protected type low caving coal hydraulic support according to claim 1 and 2, it is characterized in that: described back timber (3) is overall structure, be hinged with face guard (12) at back timber (3) front end, back timber (3) is provided with wall supporting jack (13), and the push rod of described wall supporting jack (13) and described face guard (12) rear portion are hinged.
4. two column protected type low caving coal hydraulic support according to claim 1 and 2 is characterized in that: described easy opened base (1) is provided with passes jack (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200914164U CN201062524Y (en) | 2007-08-10 | 2007-08-10 | Two-post secured low-roof coal hydraulic bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200914164U CN201062524Y (en) | 2007-08-10 | 2007-08-10 | Two-post secured low-roof coal hydraulic bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201062524Y true CN201062524Y (en) | 2008-05-21 |
Family
ID=39450895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200914164U Expired - Lifetime CN201062524Y (en) | 2007-08-10 | 2007-08-10 | Two-post secured low-roof coal hydraulic bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201062524Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943016A (en) * | 2010-08-17 | 2011-01-12 | 天地科技股份有限公司 | Novel shielding full-mechanized mining hydraulic bracket for extremely thin coal bed |
| CN102352762A (en) * | 2011-10-13 | 2012-02-15 | 兖州煤业股份有限公司 | Low-position coal-caving hydraulic bracket |
| CN107939434A (en) * | 2017-12-22 | 2018-04-20 | 郑州合新科技有限公司 | Single pendulum beam caving roof coal hydraulic support |
-
2007
- 2007-08-10 CN CNU2007200914164U patent/CN201062524Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943016A (en) * | 2010-08-17 | 2011-01-12 | 天地科技股份有限公司 | Novel shielding full-mechanized mining hydraulic bracket for extremely thin coal bed |
| 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 |
| CN107939434A (en) * | 2017-12-22 | 2018-04-20 | 郑州合新科技有限公司 | Single pendulum beam caving roof coal hydraulic support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 105, Huashan Road, Henan, Zhengzhou Province, China: 450013 Patentee after: Zhengzhou Coal Mining Machinery Group Co., Ltd. Address before: No. 105, Huashan Road, Henan, Zhengzhou Province, China: 450013 Patentee before: Zhengzhou Coal Mining Machinery Group Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: ZHENGZHOU MINE MACHINE GROUP CO., LTD. Free format text: FORMER NAME: ZHENGZHOU COAL MINE MACHINERY GROUP CO., LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080521 |