CN1048740A - Hydraulic end supporting rack - Google Patents
Hydraulic end supporting rack Download PDFInfo
- Publication number
- CN1048740A CN1048740A CN 90105356 CN90105356A CN1048740A CN 1048740 A CN1048740 A CN 1048740A CN 90105356 CN90105356 CN 90105356 CN 90105356 A CN90105356 A CN 90105356A CN 1048740 A CN1048740 A CN 1048740A
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- back timber
- column
- bearing support
- supporting rack
- base
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Abstract
The present invention is the suspension device that is used for coal-face, comprises back timber, shielding plate, base, column and hydraulic system, and it is characterized in that: back timber has adopted track structure, and its two ends of column that are positioned at the back timber below are hinged with back timber and base respectively.Be provided with the hydro-cushion pipe that is communicated with the column working chamber between the column, be provided with equalizing valve in the pipeline; The also articulated oil cylinder of advancing between end of base and back timber.Said structure has been realized the propelling of coal roadway support device under unloading condition not, has protected the integrality of top board, has improved the downhole safety condition, and can save a large amount of high-quality lumps of wood.
Description
The invention belongs to mining equiment, say it is a kind of suspension device that is used for the coal mining face definitely.
Adopt hydraulic support support works face top board, prevent in the operation because the caving danger that effect produced such as ore deposit pressure have been known technology.Wherein adopting as shown in Figure 1 end support device to carry out coal face two ends crossheadings (coal road) advance support is efficient ways.This device main body structure comprises: front column a, front-axle beam b, side retaining wall c, back timber d, caving shield e, front rod f, tail boom g, supporting plate h, back link i, base j, column k and hydraulic system l etc.Front-axle beam b and back timber d support the pressure of support butt entry roof through front column a and column k.Two of said apparatus are that use is closed in an assembly in the work, propelling with work plane, moving forward the supporting frame finishes like this: wherein the front column a and the column k of an equipment descend in right amount, make front-axle beam b and back timber d throw off butt entry roof (off-load), make base j slippage one segment distance forward under external force then, to treating to make behind the supporting position front column a and column k with front-axle beam b and back timber d jack-up again, carrying top board load.Subsequently, another suspension device repeats the above-mentioned action of last suspension device.Move thereby finish once.Its weak point is: the off-load one by one of (one) support, decline cause that easily top board produces local whereabouts, have increased the difficulty of management top board, are unfavorable for keeping the safety in production; Thereby restricted the raising of productivity ratio; Need use a large amount of high-quality lumps of wood to finish the temporary lining task when (two) implementing suspension device mobile, be in the sky top of the suspension device top of mobile status with protection; (3) distance of advance support is short, can not satisfy the needs of production scene.
The objective of the invention is: design a kind of suspension device of under the condition of not off-load, finishing travel task,, and improve work efficiency, reduce raw-material consumption with the integrality and the safety of raising coal face top board.
Hydraulic end supporting rack provided by the present invention comprises back timber, shielding plate, base, column and hydraulic system, it is characterized in that: back timber adopts track structure, its two ends of column that are positioned at the back timber below are hinged with back timber and base respectively, be provided with the hydro-cushion pipe of UNICOM's column working chamber between the column, be provided with equalizing valve in the pipeline.At the articulated oil cylinder of advancing of an end of base, the other end and the back timber of the oil cylinder of advancing are hinged.
The back timber of track structure comprises " U " type bearing support, by bearing block support on bearing support guide wheel and carrier wheel and cooperate guiding with guide wheel and by the crawler belt that has guide rail of carrier wheel load-bearing.
Because crawler belt is heavier, be the problem that hangs that solves the lower half crawler belt, the present invention is provided with carrier wheel between the external surface of the bottom land of " U " type bearing support and creeper tread.
In order to adapt to the needs of coal road operation, be provided with hitch in the both sides of bearing support.Back timber more than two groups can be connected in parallel through the hitch effect.Corresponding with each back timber after the parallel connection, at the front end of bearing support corresponding aiding support frame is arranged, guide wheel and carrier wheel are installed on the aiding support frame, crawler belt is walked around guide wheel that bearing support rear end and aiding support frame front end be provided with respectively and is supported by carrier wheel.Back timber rear lower in parallel connection has at least two group shore supports, each side is provided with one group of upright supports in the preceding bottom of back timber in parallel.
In order to increase the stability of support, the spacing of the two adjacent upright of every group of column and base pin joint is greater than the spacing of itself and back timber pin joint among the present invention.
In order to adapt to the rough condition of work of butt entry roof, the present invention is connecting firmly leaf spring on bearing support, and the axle sleeve in leaf spring spring ear cooperates with track supporting wheel shaft and supporting carrier wheel.
For ease of removing original support in the coal road, the present invention has installed the support stripping attachment at the front end of back timber.
Further introduce design feature of the present invention and using method below in conjunction with Figure of description:
Figure of description 1 is the front view of prior art-end support device;
Figure of description 2 is front views of the present invention;
Figure of description 3 is left side of the present invention schematic diagrames;
Figure of description 4 is right side of the present invention schematic diagrames;
Figure of description 5 is central post of the present invention and walking cylinder action position view.
Among Fig. 2 to Fig. 5: 1-crawler belt, 2-carrier wheel, 3-guide wheel, 4-leaf spring, the 5-bearing support, 6-carrier wheel, 7-column, the 8-oil cylinder of advancing, bearing before the 9-base, 10-, 11-monomer column, 12-support stripping attachment, 13-column, 14-aiding support frame, 15-screens plate, 16-mine car, the 17-track, 18-balance pipe, 19-equalizing valve.
As shown in the figure, bearing support (5) is one " U " type tower structure, bearing shell on " U " of bearing support (5) type frame side wall in bearing support is installed with the wheel shaft of guide wheel (3), has to be used for going up the direction recess that protruding guide rail cooperates with creeper tread (1) on the wheel rim of guide wheel (3).Leaf spring (4) connects firmly (generally selecting the fixing mode for use) on the sidewall of bearing support (5), is being equipped with axle sleeve in the spring ear of leaf spring (4), and the track supporting wheel shaft same moping pulley (2) equipped with axle sleeve cooperates the weight that is supporting crawler belt.By means of the effect of leaf spring (4) and the multi-disc plank frame of crawler belt, work guaranteed in the moving process back timber all the time large tracts of land press and be attached on the top board.The effect that is installed in the carrier wheel (6) between crawler belt (1) and bearing support (5) groove floor mainly is the weight of support lower branch crawler belt.
The rear portion of bearing support (5) is installed with the shielding plate, the lug that the outside, bottom surface of bearing support (5) has several hinged stanchions to use.Usually, upper end and this lug of column (7) are hinged, and the other end of column (7) and base (9) are hinged; Back timber for lengthening then locates also should have two two ends and attached bearing support (14) and the hinged column (13) of preceding bearing (10) of helping at aiding support frame (14), also have upper end and the attached bearing support (14) that helps hinged simultaneously, the lower end stands monomer column (11) on the ground.In particular cases, promptly when the suffered working resistance of suspension device is excessive, also can utilize lug to connect the monomer column of requirement to increase support capacity.In real work, the supporting of coal road needs many group devices to be connected in parallel, and forms an integral top beam, at this moment should increase by one group of column (7) (as shown in Figure 3) at the hitch place of every adjacent back timber.At the other end of back timber is that the front end of auxiliary stand (14) then only respectively is provided with the bracing or strutting arrangement that a group (seeing accompanying drawing 4) comprises preceding bearing (10), column (13) and monomer column (11) under outermost back timber.Between two groups of bracing or strutting arrangements, be the space of mine car (16) along track (17) walking.Be positioned on the same base (on the preceding bearing) hinged column and use balance pipe (18) and equalizing valve (19) its operating cylinder of UNICOM in good time each other.
During work, column (7) is pressed against the butt entry roof surface with the back timber of track structure under hydraulic system (utilizing known technology) effect, and makes suspension device obtain specified setting load rear oil duct locking.Because the compensating action of leaf spring (4) and the creeper tread that is hinged, the present invention can adapt to the convex-concave fluctuating of butt entry roof, thereby has improved supporting effect greatly.
When this suspension device need move forward, need not off-load, the equalizing valve as long as outward winding (19), utilize balance pipe (18) to be communicated with the operating cylinder that base (9) (and preceding bearing (11)) is gone up front and back two columns (7) (and column (13)), be hinged on the oil cylinder of advancing (8) of bearing support (5) and base (9) front end respectively for pressure oil to two ends then.Be expert under the effect of oil-feed cylinder (8), all-in-one-piece back timber in parallel is that fulcrum is implemented to connect the top translation under the carrying condition with base (9) (with preceding bearing (10)).Because butt entry roof produces sizable frictional resistance between crawler belt and top board to the pressure of back timber, crawler belt does not produce relative slippage with top board in the translation process of suspension device.And bearing support (5) translation forward under the promotion of oil-feed cylinder (8) of being expert at, therefore, guide wheel (3) and carrier wheel (6) roll at the inner surface that forces the lower edge crawler belt of bearing support (5) and move ahead, and having finished crawler belt (1) is advancing of basal plane with the top board.
Along with moving of back timber, column (7) and (13) will be that fulcrum is swung with its lower end.As shown in Figure 5, in the column swing process, the length size of every root post will change, the structure of reasonably selecting the pin joint of column and joining with balance pipe, can guarantee that the carrying in column swing of every group of pressure oil in the column operating cylinder can transfer the Ji compensation automatically when changing, the load that consequently acts on the back timber remains unchanged, thereby has eliminated the danger that top plate portion is subsided.
When back timber advances to extreme position, when promptly column swings to the position that Fig. 5 mid point lines out, set about carrying out moving of bearing.Its process is, according to top board suspension device constructed and makes the size of pressure, and base is divided into some groups, and each is organized column and moves gradually.When operating pressure is excessive, should consider to utilize bearing support (5) to go up the monomer upright supports back timber of the equipped respective numbers of lug of setting, when mobile, at first close equalizing valve, connect the column operating cylinder, to column lower end operating cylinder pump pressure oil, base (9) (or preceding bearing (10)) is lifted from ground, subsequently, by the return of the oil cylinder of advancing, base (9) (or preceding bearing (10)) reach is put in place.Reversing pump oil in column again, (or preceding bearing (10) lands base (9) and make it reach setting load.So moving, this group base (preceding bearing) finishes.By this program each group base is moved the back suspension device that finishes in succession and finish once " taking a step " and move, when needs continue next and take a step to be shifted, repeat said process and get final product.
For the ease of adjusting the direct of travel of suspension device, the present invention has selected the method that a horizontal jack respectively is set in back timber front end both sides in the prior art for use.
Main body at the support stripping attachment (12) of assisting the back timber front end to install is a hydraulic jack.In the process of hydraulic end supporting rack reach, during supporting girder steel in running into the tunnel, utilization is stuck on the support stripping attachment of auxiliary stand (14) front end and lifts girder steel, make girder steel slowly break away from top board again behind the support of dismounting girder steel, utilize this equipment to remove girder steel and can avoid in the prior art invar beam under the effect of impact force, to topple over effectively, make roof pressure moment disequilibrium and the danger of subsiding.
If when the present invention is used for the supporting of gob side entry retaining, can with near the crawler belt of coal face one side as cutting the top crawler belt, hinged many group columns in corresponding bearing support (5) bottom surface, and side guard board is set.
In coal mining activity, solid accumulation the place ahead at suspension device is often arranged, influenced moving of coal excavation apparatus, to expend a large amount of manually being removed for this reason.For addressing this problem, known technology-small-sized shovel loader structure can be fitted in the middle part of hydraulic end supporting rack, at once the bottom of the bearing support (5) in oil-feed cylinder (8) the place ahead.
Advantage of the present invention is: the not off-load that has realized a protection unit is advanced and has been guaranteed the integrality of top board. Therefore, be convenient to roof control, alleviated simultaneously the device damage rate, and can save a large amount of high-quality lumps of wood.
Claims (7)
1, a kind of hydraulic end supporting rack, comprise back timber, shielding plate, base, column and hydraulic system, it is characterized in that: back timber adopts and covers the belt structure, its two ends of column that are positioned at the back timber below are hinged with back timber and base respectively, be provided with the hydro-cushion pipe of UNICOM's column working chamber between the column, be provided with equalizing valve in the pipeline; At the articulated oil cylinder of advancing of an end of base, the other end and the back timber of the oil cylinder of advancing are hinged.
2, hydraulic end supporting rack according to claim 1, it is characterized in that: the back timber of track structure comprises " U " type bearing support, by bearing block support on bearing support guide wheel and cooperate guiding with guide wheel and by the crawler belt that has guide rail of carrier wheel load-bearing.
3, hydraulic end supporting rack according to claim 2 is characterized in that: be provided with carrier wheel between the bottom land of " U " shape bearing support and creeper tread external surface.
4, hydraulic end supporting rack according to claim 1 and 2, it is characterized in that: the hitch at least two group crawler type back timbers through the bearing support both sides are connected in parallel, front end at bearing support has corresponding aiding support frame and bearing support to join, guide wheel and carrier wheel are installed on the aiding support frame, crawler belt is walked around guide wheel that bearing support rear end and aiding support frame front end be provided with respectively and is supported by carrier wheel, back timber rear lower in parallel has at least two group pillar supportings, and one group of column supporting is each side arranged in the front portion of back timber in parallel.
5, hydraulic end supporting rack according to claim 1 and 2 is characterized in that: the spacing of two adjacent upright and base pin joint is greater than the spacing of itself and back timber pin joint in every group of column.
6, hydraulic end supporting rack according to claim 1 is characterized in that: connecting firmly leaf spring on the bearing support, the axle sleeve in leaf spring spring ear cooperates with track supporting wheel shaft and is supporting carrier wheel.
7, hydraulic end supporting rack according to claim 1 is characterized in that: the Front-end Design of back timber has supporting frame stripping attachment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90105356 CN1022943C (en) | 1990-08-04 | 1990-08-04 | Hydraulic end supporting rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90105356 CN1022943C (en) | 1990-08-04 | 1990-08-04 | Hydraulic end supporting rack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1048740A true CN1048740A (en) | 1991-01-23 |
| CN1022943C CN1022943C (en) | 1993-12-01 |
Family
ID=4879180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90105356 Expired - Fee Related CN1022943C (en) | 1990-08-04 | 1990-08-04 | Hydraulic end supporting rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1022943C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410035A (en) * | 2011-11-25 | 2012-04-11 | 刘混举 | A advance support crawler-type hydraulic support for fully mechanized coal mining face |
| CN103452573A (en) * | 2013-09-12 | 2013-12-18 | 河南理工大学 | Self movable forepoling support with caterpillar band top beam |
| CN103835737A (en) * | 2013-11-29 | 2014-06-04 | 单淑花 | Temporary supporting device of driving machine |
| CN103924997A (en) * | 2013-01-11 | 2014-07-16 | 王新丰 | Rolling moving method of hydraulic bracket |
| CN105221175A (en) * | 2015-10-12 | 2016-01-06 | 山东科技大学 | A kind of automatic moving type end hydraulic support based on parallel institution and application thereof |
| CN106121700A (en) * | 2016-08-30 | 2016-11-16 | 孙姗姗 | The improved structure of a kind of advance timbering and shifting frame method thereof |
| CN106321129A (en) * | 2016-08-30 | 2017-01-11 | 高净净 | Modification device for fore-pole top-bottom beam and supporting method thereof |
| CN108361052A (en) * | 2018-05-02 | 2018-08-03 | 石家庄煤矿机械有限责任公司 | Without the support quick holder of self-loopa repeatedly |
| CN109488358A (en) * | 2018-12-29 | 2019-03-19 | 华晋焦煤有限责任公司 | Movable-type intelligent advance support system and method for protecting support |
| CN110748174A (en) * | 2019-11-22 | 2020-02-04 | 天津亿金鑫金属制品有限公司 | K-shaped inclined support composite component |
-
1990
- 1990-08-04 CN CN 90105356 patent/CN1022943C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410035A (en) * | 2011-11-25 | 2012-04-11 | 刘混举 | A advance support crawler-type hydraulic support for fully mechanized coal mining face |
| CN103924997A (en) * | 2013-01-11 | 2014-07-16 | 王新丰 | Rolling moving method of hydraulic bracket |
| CN103452573A (en) * | 2013-09-12 | 2013-12-18 | 河南理工大学 | Self movable forepoling support with caterpillar band top beam |
| CN103452573B (en) * | 2013-09-12 | 2015-08-12 | 河南理工大学 | A kind of automatic moving type advance support rack with caterpillar band top beam |
| CN103835737A (en) * | 2013-11-29 | 2014-06-04 | 单淑花 | Temporary supporting device of driving machine |
| CN105221175A (en) * | 2015-10-12 | 2016-01-06 | 山东科技大学 | A kind of automatic moving type end hydraulic support based on parallel institution and application thereof |
| CN106121700A (en) * | 2016-08-30 | 2016-11-16 | 孙姗姗 | The improved structure of a kind of advance timbering and shifting frame method thereof |
| CN106321129A (en) * | 2016-08-30 | 2017-01-11 | 高净净 | Modification device for fore-pole top-bottom beam and supporting method thereof |
| CN108361052A (en) * | 2018-05-02 | 2018-08-03 | 石家庄煤矿机械有限责任公司 | Without the support quick holder of self-loopa repeatedly |
| CN109488358A (en) * | 2018-12-29 | 2019-03-19 | 华晋焦煤有限责任公司 | Movable-type intelligent advance support system and method for protecting support |
| CN110748174A (en) * | 2019-11-22 | 2020-02-04 | 天津亿金鑫金属制品有限公司 | K-shaped inclined support composite component |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1022943C (en) | 1993-12-01 |
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