CN2466351Y - Full-shield powered support of high-, middle- and low-level caving coal - Google Patents
Full-shield powered support of high-, middle- and low-level caving coal Download PDFInfo
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- CN2466351Y CN2466351Y CN 00243946 CN00243946U CN2466351Y CN 2466351 Y CN2466351 Y CN 2466351Y CN 00243946 CN00243946 CN 00243946 CN 00243946 U CN00243946 U CN 00243946U CN 2466351 Y CN2466351 Y CN 2466351Y
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Abstract
The utility model relates to a novel full-shield hydraulic support of high-level, middle-level and low-level caving coal, which is formed by combining a full-shield high-level, middle-level and low-level coal discharge tail beam and a body construction of the front part of a support fitting the tail beam. The upper end of the tail beam is hinged with the rear end of a top beam of the support, and the lower part extends to a base board of one side of a gob of a rear conveyer, and is drawn to move on the base board. Both side of the tail beam is provided with a full-length side guard board. The shape of the longitudinal section of the tail beam is determined according to the position of the coal discharge window, the flow direction of the discharged caving coal, the working space of the rear conveyer, etc. The utility model has the advantages of favorable gob isolation performance, big coal discharge working space, little loss of the backbone of the coal discharge window, etc.
Description
The utility model relates to an a kind of efficient high position, meta, low caving coal hydraulic support that the colliery caving fully mechanized face has full shielding function and can adapt to different caving modes that be used for.
Recent two decades comes, the development of China's caving roof coal hydraulic support passed by one from the low level to a high position to meta again to the road of low caving coal.Alter a great deal, seemed to walk that one encloses to walk again.Rich experience and lesson in this process, have been accumulated.Low caving coal hydraulic support the earliest is owing to the insufficient strength of support stabilizing mechanism does not have developed.All adopt the low level caving mode now, just all is right neither to say present low caving coal mode and low caving coal hydraulic support.Require to analyze from caving coal technology, a high position, meta or low caving coal are adapted to different coal seam conditions: the situation of the hardness of top coal, easy degree of crushing, top coal thickness, immediate roof etc.Develop into and all use now the low caving coal mode to be because an original high position and meta sublevel caving hydrau lic support and exist the more serious problem that is difficult for overcoming by the coal method of putting of its decision.Mainly be: former high-order sublevel caving hydrau lic support is owing to only use a conveyer, mine put coal can not parallel operations, coal discharge outlet is in work plane main air duct position, coal dust is very big, working space is very little; Though it is little that two conveyers of former meta sublevel caving hydrau lic support, rear portion are put the conveyer working space that coal uses, transport capacity can not obtain performance, equipment is fragile and inconvenient maintenance.And put coal window width narrow (to bear huge moment of torsion relevant with caving shield), thereby it is big to put the loss of coal back, then is two kinds of shortcomings that support all exists.Present widely used low caving coal hydraulic support mainly contains three kinds: the little plate sublevel caving hydrau lic support of four post quadric chains, the big plate sublevel caving hydrau lic support of four post reverse-four-link-bar mechanisms, the little plate sublevel caving hydrau lic support of four post single wobbling pole mechanisms.These supports all use two conveyers, and all use wide type to put the coal plate to put coal mechanism, and the coal discharge outlet width equals support width, and it is higher therefore to put coal efficient.But but have following subject matter: (1) support rear portion can not effectively isolate the old man, has a strong impact on the quality of output coal.Because the plate both sides do not have side guard board, so between support and the support plate gap about 200～300mm are arranged; Particularly when support moves forward, will expose bigger space, make old man's spoil be easy to scurry among the support conveyer, the percentage of shale content of emitting coal is increased in the plate side of support; (2) little plate stroke and coal discharge outlet height are little, and be unfavorable to improving top-coal recovery rate, and the support back space is little, conveyer limited ability system, and overhaul of the equipments is carried out in inconvenience; (3) the low caving coal mode is for the hard little coal seam bad adaptability of following thickness in soft coal seam of top coal or the top coal, can make top coal overcrushing or reduce Coal Quality because of the chance that increases mixed cash.
The purpose of this utility model is to overcome the deficiency of above-mentioned prior art, provide a kind of employing two conveyers, can realize a high position or meta or low caving coal and put a full shielding tail boom high position, meta, the low caving coal hydraulic support that the coal working space is big, can effectively isolate the old man.
The purpose of this utility model also is to overcome original high, meta sublevel caving hydrau lic support and puts the narrow shortcoming of coal window.The full shielding of a high position, meta, low level put on the coal tail boom to put the coal window width big, can significantly reduce the back loss of putting coal, coal discharge outlet length is long, can satisfy the requirement of drawing coal technology the best drawing interval, thereby significantly improve top-coal recovery rate.
The utility model core is to adopt a full shielding high position, meta or low level to put coal tail boom (hereinafter to be referred as tail boom), the suitable stable support front body structure of homophase combines respectively, thereby forms a kind of caving roof coal hydraulic support new, that specific caving mode (high position, meta or low level) arranged.
The purpose of this utility model also can reach by following measure:
(1) the stable support front body structure of selection or design back timber suitable length: for high-order sublevel caving hydrau lic support (being applicable to softer top coal), should select the short stable support front body structure of back timber, as four posts or two post single wobbling pole mechanism rack main bodys, for meta sublevel caving hydrau lic support (resisting coal in being applicable to stubbornly), should select the stable support front body structure of back timber moderate-length, as the wide quadric chain rack body of four posts structure; For low caving coal hydraulic support (hard above thick top coal is resisted plate etc. stubbornly in being applicable to), should select the stable body frame front body structure of long back timber, as four post reverse-four-link-bar mechanism rack agent structures.(working resistance of support and back timber length etc. will satisfy roof timbering, three machines are supporting and the needs of immediate support etc.).
(2) tail boom is put in a high position, meta, the full shielding of low level, and its main body is an irregular platy structure beam body, and the tail boom upper end is hinged with the set cap rear end, and old man's one side base plate of rear portion conveyer is stretched in the tail boom bottom, and drags on base plate.The part of its contact base plate should be designed to garden arc formula sled plate shape, consider that base plate allows the variation of this pressure and adaptation support height, and reduction drags resistance; The tail boom rear portion does not contact the part of base plate will stay a space less than back conveyer intermediate channel height, so that when support moves forward the floating cash in the support is entered the old man; Tail boom and set cap are with wide, and total length side guard board (side is the active side backplate, and side is the fixation side backplate in addition, and end distance base plate height is less than conveyer intermediate channel height under the side guard board) is established in both sides.For making the back conveyer that enough transport spaces be arranged, the side guard board of tail boom bottom should be located at old man's one side (for guaranteed strength can be established reinforcing rib).The horizontal width of side guard board differing heights otherwise add necessary lap width less than the maximum unit advance of support;
(3), determine the shape (linear pattern, broken line type, bow type, arc line type or other combinatorial geometry figure) of the vertical section of tail boom according to the rational flow of back conveyer working space, coal discharge outlet rational position and length, discharging top coal etc.And the setting of determining to put device for coal (walking beam, swing jack, plate, plate jack, coal guide plate etc.);
(4) for guaranteeing support unloading and reach smoothly, that hinged row's pin-and-hole of top beam rear end and tail boom can be processed into slotted hole, slotted hole top tilts (desirable about 60～70 ° of slotted hole axis and horizontal sextant angle are about slotted hole center to center distance 20～50mm) to support the place ahead, also can be made into the hole, garden or the hole, garden of amplification.Compaction rate decision according to top coal hardness and old man's inbreak.
Because tail boom is longer, install for ease of transportation of support low level and work plane, can establish interim top tail boom jack or push rod, increase measures such as tail boom suspension ring.
The utility model has following advantage:
(1) two conveyers of employing, coal mining are put coal and can not disturbed parallel operations mutually; Put the coal position away from the work plane main air duct, help reducing the coal dust of work plane;
(2) the back conveyer is screened fully under tail boom, the side guard board of tail boom both sides can the effective isolation old man, can significantly reduce the percentage of shale content of output coal to upgrade;
(3) bigger working space is arranged at the tail boom bottom, owing to be to drag the formula tail boom, has saved the support jack of support to tail boom, makes things convenient for pedestrian and maintenance of equipment, can equip high-power back conveyer and give full play to its transport capacity;
(4) tail boom is the formula of dragging, and its upper load is born by set cap and base plate, and major part acts directly on the base plate, and the load of support has been alleviated; Tail boom itself does not transmit and bear big moment of torsion, and is stressed little, therefore can strengthen the width of coal discharge outlet under the prerequisite of guaranteed strength as far as possible, as reach 1.2m, even wideer, this is to reducing back loss of coal discharge outlet, improves top-coal recovery rate and put coal efficient very favourable.
(5) there is a long and complete area at whole tail boom back, adopt a high position, meta or low level caving mode no matter be, all can design best coal the window's position and the length of window of putting more conveniently, make it consistent, so that improve drawing effectiveness raising top-coal recovery rate with the caving coal technology requirement.
Below in conjunction with accompanying drawing the utility model is further elaborated:
One of Fig. 1 the utility model embodiment, four posts screen the high-order sublevel caving hydrau lic support of tail boom entirely;
Two, four posts of Fig. 2 the utility model embodiment screen tail boom meta sublevel caving hydrau lic support entirely;
Three, four posts of Fig. 3 the utility model embodiment screen the tail boom low caving coal hydraulic support entirely;
1 is in the short bar timber agent structure of four post single wobbling pole mechanisms of support front portion among Fig. 1; The 2nd, screen a high position to put the coal tail boom entirely, the tail boom upper end is hinged with the set cap rear end, and back conveyer old man one side base plate is stretched in its underpart, and drags on base plate; The 3rd, what install in the tail boom both sides is side guard board (side is the active side backplate, and opposite side is the fixation side backplate); The 4th, above the tail boom back, open put the coal window and be provided with at the window position put device for coal (walking beam, swing jack, coal guide plate etc.); The 5th, back conveyer.
6 is the wide quadric chain moderate-length of four posts bar timber agent structures in the support front portion among Fig. 2; The 7th, screen meta to put the coal tail boom entirely, the tail boom upper end is hinged with the set cap rear end, and back conveyer old man one side base plate is stretched in its underpart, and drags on base plate; The 3rd, the side guard board of installing in the tail boom both sides (side is the active side backplate, and opposite side is the fixation side backplate); The 4th, open at the tail boom back put the coal window and be provided with at the window position put device for coal (walking beam, swing jack, plate, plate jack, coal guide plate etc.); The 5th, back conveyer.
8 is long bar timber agent structures of four post reverse-four-link-bar mechanisms in the support front portion among Fig. 3; The 9th, screen low level to put the coal tail boom entirely, the tail boom upper end is hinged with the set cap rear end, and back conveyer old man one side base plate is stretched in its underpart, and drags on base plate; 3 side guard boards of installing in the tail boom both sides (side is that active side backplate, opposite side are the fixation side backplate); The 4th, open below leaning at the tail boom back put the coal window and be provided with at the window position put device for coal (walking beam, swing jack, plate, plate jack, coal guide plate etc.); The 5th, back conveyer.
Claims (4)
1, screen a tail boom high position, meta, low caving coal hydraulic support entirely, respectively by a full shielding high position put coal tail boom (2), screen meta to put coal tail boom (7) entirely, to screen low level to put the anterior stable agent structure (1) of coal tail boom (9) and suitable support, (6), (8) etc. entirely combined and form; It is characterized in that tail boom (2) (7) (9) main body is the platy structure beam body of row's rule, its upper end is hinged with the set cap rear end, and back conveyer old man one side base plate is stretched in its underpart, and drags on base plate; Tail boom (2) (7) (9) is respectively by the tail boom main body, total length active side backplate of installing in its both sides and fixation side backplate (3), put the coal window what its back proper site was opened, and be provided with at the window position put device for coal (4): compositions such as walking beam, swing jack, plate, plate jack, coal guide plate.
2, a full shielding tail boom high position as claimed in claim 1, meta, low caving coal hydraulic support is characterized in that the longitudinal section shape of tail boom has linear pattern, broken line type, circular arc type or other combinatorial geometry shape.
3, a full shielding tail boom high position as claimed in claim 1 or 2, meta, low caving coal hydraulic support, the contact base plate position that it is characterized in that tail boom (2) (7) (9) is a circular arc sled plated construction.
4, as claim 1 or 2 or 3 described full shielding tail boom high positions, meta, low caving coal hydraulic support, it is characterized in that, make top, hole to the slotted hole that support the place ahead tilts with that row's pin-and-hole of the hinged set cap rear end of tail boom, also can be made into the circular hole or the circular hole of amplification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00243946 CN2466351Y (en) | 2000-07-26 | 2000-07-26 | Full-shield powered support of high-, middle- and low-level caving coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00243946 CN2466351Y (en) | 2000-07-26 | 2000-07-26 | Full-shield powered support of high-, middle- and low-level caving coal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2466351Y true CN2466351Y (en) | 2001-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00243946 Expired - Fee Related CN2466351Y (en) | 2000-07-26 | 2000-07-26 | Full-shield powered support of high-, middle- and low-level caving coal |
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| Country | Link |
|---|---|
| CN (1) | CN2466351Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906984A (en) * | 2010-08-02 | 2010-12-08 | 北京诚田恒业煤矿设备有限公司 | Landing beam sliding hydraulic support system for coal mine |
| CN101260810B (en) * | 2007-03-06 | 2011-05-04 | 李泽宇 | Hydraulic support tail beam |
| CN102052084A (en) * | 2010-10-30 | 2011-05-11 | 煤炭科学研究总院太原研究院 | Remote-controlled pulley-type shielding bracket under coal mine |
| CN102226409A (en) * | 2011-05-24 | 2011-10-26 | 太原理工大学 | Stepped-type support of top paving mesh laneway blast advancement face |
| CN102704976A (en) * | 2012-06-29 | 2012-10-03 | 中国矿业大学 | Full-mechanized filling and coal-mining hydraulic support |
| CN102749432A (en) * | 2012-05-17 | 2012-10-24 | 中国矿业大学(北京) | Fully mechanized caving top coal caving three-dimensional simulation experiment platform and experiment method |
| CN102900450A (en) * | 2012-09-05 | 2013-01-30 | 山东科技大学 | Caving coal hydraulic support with large swing beam structure |
| CN102926778A (en) * | 2012-11-16 | 2013-02-13 | 无锡阳工机械制造有限公司 | Shielding beam structure of hydraulic bracket |
| CN108252732A (en) * | 2018-03-26 | 2018-07-06 | 中国矿业大学(北京) | A kind of transition bracket that can be realized top-coal caving face end and put coal |
| CN110671140A (en) * | 2019-10-16 | 2020-01-10 | 河南理工大学 | Oscillation tail beam of hydraulic support for caving coal |
| CN114562314A (en) * | 2022-03-09 | 2022-05-31 | 中国矿业大学 | Fully mechanized caving face filling hydraulic support and use method thereof |
-
2000
- 2000-07-26 CN CN 00243946 patent/CN2466351Y/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101260810B (en) * | 2007-03-06 | 2011-05-04 | 李泽宇 | Hydraulic support tail beam |
| CN101906984B (en) * | 2010-08-02 | 2012-05-02 | 北京诚田恒业煤矿设备有限公司 | Landing beam sliding hydraulic support system for coal mine |
| CN101906984A (en) * | 2010-08-02 | 2010-12-08 | 北京诚田恒业煤矿设备有限公司 | Landing beam sliding hydraulic support system for coal mine |
| CN102052084A (en) * | 2010-10-30 | 2011-05-11 | 煤炭科学研究总院太原研究院 | Remote-controlled pulley-type shielding bracket under coal mine |
| CN102226409A (en) * | 2011-05-24 | 2011-10-26 | 太原理工大学 | Stepped-type support of top paving mesh laneway blast advancement face |
| CN102226409B (en) * | 2011-05-24 | 2013-11-06 | 太原理工大学 | Stepped-type support of top paving mesh laneway blast advancement face |
| CN102749432A (en) * | 2012-05-17 | 2012-10-24 | 中国矿业大学(北京) | Fully mechanized caving top coal caving three-dimensional simulation experiment platform and experiment method |
| CN102749432B (en) * | 2012-05-17 | 2014-08-06 | 中国矿业大学(北京) | Fully mechanized caving top coal caving three-dimensional simulation experiment method |
| CN102704976B (en) * | 2012-06-29 | 2015-09-30 | 中国矿业大学 | A kind of combining puts filling coal mining hydraulic support |
| CN102704976A (en) * | 2012-06-29 | 2012-10-03 | 中国矿业大学 | Full-mechanized filling and coal-mining hydraulic support |
| CN102900450A (en) * | 2012-09-05 | 2013-01-30 | 山东科技大学 | Caving coal hydraulic support with large swing beam structure |
| CN102926778A (en) * | 2012-11-16 | 2013-02-13 | 无锡阳工机械制造有限公司 | Shielding beam structure of hydraulic bracket |
| CN108252732A (en) * | 2018-03-26 | 2018-07-06 | 中国矿业大学(北京) | A kind of transition bracket that can be realized top-coal caving face end and put coal |
| CN110671140A (en) * | 2019-10-16 | 2020-01-10 | 河南理工大学 | Oscillation tail beam of hydraulic support for caving coal |
| CN110671140B (en) * | 2019-10-16 | 2021-11-12 | 河南理工大学 | Oscillation tail beam of hydraulic support for caving coal |
| CN114562314A (en) * | 2022-03-09 | 2022-05-31 | 中国矿业大学 | Fully mechanized caving face filling hydraulic support and use method thereof |
| CN114562314B (en) * | 2022-03-09 | 2023-02-28 | 中国矿业大学 | Fully mechanized caving face filling hydraulic support and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |