CN101871360B - Thin coal bed fully-mechanized mining scraper conveyor - Google Patents
Thin coal bed fully-mechanized mining scraper conveyor Download PDFInfo
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- CN101871360B CN101871360B CN 200910014819 CN200910014819A CN101871360B CN 101871360 B CN101871360 B CN 101871360B CN 200910014819 CN200910014819 CN 200910014819 CN 200910014819 A CN200910014819 A CN 200910014819A CN 101871360 B CN101871360 B CN 101871360B
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Abstract
The invention relates to a thin coal bed fully-mechanized mining scraper conveyor comprising a machine head (1), a machine tail (12), a middle groove (6), a scraper chain, and the like, wherein middle plates of the machine head (1) and the machine tail (12) are horizontally arranged and form an included angle of 0+6 to 0-20 degrees with the middle plate of the middle groove (6) and positioned at the same height; scraper running lower chain ways (4 and 9) of the machine head (1) and the machine tail (12) are in shapes of inverse curves; and the bottoms of the machine head (1) and the machine tail (12) are provided with hoistable poppets (2 and 11) capable of adjusting the heights of the machine head (1) and the machine tail (12). The invention can solve the problems that triangle coal is not remained at both ends of a thin coal bed fully-mechanized mining face, and returning coal is conveyed by the lower chain ways (4 and 9); a machine head coal dropping device and a machine tail recovering device can solve the problems of poor coaling effect of a thin coal bed coal-winning machine and recovery cleanness of float coal positioned at both ends of the thin coal bed fully-mechanized mining face; the scraper chain with a wide chain pitch can permit larger-lump bastard coal to pass through a bottom bracket of the coal-winning machine; the invention is suitable for the fully-mechanized mining of a thin coal bed dug from top to bottom, especially suitable for the fully-mechanized mining of a thin coal bed containing ferric sulfide concretions or/and hard gangues, and also suitable for the fully-mechanized mining of a moderate thick coal bed and a thick coal bed.
Description
Technical field
The present invention relates to the coal-mine integrated-mining equipment drag conveyor, particularly a kind of being suitable for, dug the thin coal bed fully-mechanized mining scraper conveyor that the thin coal bed fully-mechanized mining face in the end is used along the top; It especially is fit to the larger lump coal of lumpiness, Containing Sulfur ferruginous concretions and/or the thin coal bed fully-mechanized mining face of hard dirt band and uses.
Background technology
Thin coal bed fully-mechanized mining face mining height is little, corollary equipment is many, remarkable space is little.The drag conveyor of tradition Mining Face in Thin Coal Seam, head, tail are higher than intermediate channel, and the middle plate of head, tail is tip-tilted, the shearer haulage device that is installed in this place certain altitude that also will raise.When coal-winning machine ran to head, afterbody, fuselage can raise, and pivot angle also can change under the rocker arm of coal mining machine, thereby caused that coal-winning machine is in the cut change in depth of this section.Make the coal-winning machine cut produce residual Triangle Coal and the problem that does not fill coal at the stope two ends.In addition, the existence of chain road retracts a coal problem under the Scraper Conveyor in Mining Face, and is more remarkable for the impact of girdle, especially more outstanding for this problem of sealing bottom type drag conveyor.
Because the low seam mining machinery fuselage is short, diameter of cylinder is little, the coal mining machine roller effect of loading coal is poor when causing thin seam mining, and the drag conveyor of can not packing into after the raw coal that is positioned at the work plane two ends is cut is in time transported.Coal-winning machine is cut to the float coal that often will locate this position next time and is pushed into the tunnel, can't reclaim.
Summary of the invention
Upwarp and make coal-winning machine can not cut work plane two ends Triangle Coal and there is weak points such as retracting a coal in lower chain road in order to overcome existing thin coal seam scraper blade conveyor frame head and tail, the invention provides a kind of thin coal bed fully-mechanized mining scraper conveyor, it can make low seam mining machinery in the coal cutting of stope two ends, do not stay Triangle Coal, lower chain road does not retract a coal.
The present invention solves the problems of the technologies described above the technical scheme that adopts to be:
Thin coal bed fully-mechanized mining scraper conveyor is comprised of head, tail, intermediate channel, scraper chain etc.The middle plate of its head, tail is horizontal arrangement, is in sustained height with the middle plate of intermediate channel, and the angular range with the middle plate of intermediate channel in using is 0+6 degree～0-20 degree.The lower chain road of the scraper plate operation of head, tail is anti-curve shaped.The device of the adjustment height of head is the liftable poppet of head bottom.The liftable poppet of adjusting the tail height is also arranged at the tail bottom.
The present invention solves the problems of the technologies described above the technical scheme that adopts can also be:
The head of thin coal bed fully-mechanized mining scraper conveyor, tail have respectively cleaning head, the head eqipment of tail coal breakage, tail retracting device.It is wide chain pitch double center chain scraper chain that scraper chain adopts accurate double center chain scraper chain.Head, tail liftable poppet are made of poppet pendular body, outer case, internal box and elevating mechanism.
The invention has the beneficial effects as follows:
1. can solve the problem that Triangle Coal is not stayed at thin coal bed fully-mechanized mining face two ends, and guarantee that head unloading place has good excessively coal space.
2. can solve the problem that lower chain road retracts a coal.
3. the liftable poppet of head, tail can be adjusted the height of head, tail at any time, improve drag conveyor to the tunnel or/and the adaptive capacity of floor undulation fluctuations.
4. can solve the problem of thin coal bed fully-mechanized mining working surface coal mining machine loading weak effect, make the float coal at fully-mechanized mining working two ends be recycled and clear up.
5. the scraper chain of wide chain pitch can strengthen the chain stripe pitch, allows the bastard coal of more large degree by the coal-winning machine bottom bracket.Rear 2 needs that are particularly suitable for the larger lump coal of lumpiness, Containing Sulfur ferruginous concretions and/or hard dirt band thin coal bed fully-mechanized mining.
Description of drawings
Fig. 1, the 2nd, the structural representation master of thin coal bed fully-mechanized mining scraper conveyor of the present invention, top view.
Fig. 3, the 4th, the structural representation master of head eqipment, top view.
Fig. 5, the 6th, the structural representation master of tail retracting device, top view.
Fig. 7 is the cross-sectional drawing that accurate double center chain scraper chain is positioned at intermediate channel.
Fig. 8, the 9th, the structural representation master of liftable poppet, lateral view.
Among the figure: the 1-head, 2-machine head liftable poppet, 3-head section cochain road, chain road under the 4-head section, the 5-coal-winning machine, 6-conveyer intermediate channel, 7-ramp plate or shovel board, 8-shearer haulage mechanism, chain road under the 9-tail, 10-tail cochain road, 11-tail liftable poppet, the 12-tail, 13-fortune lane or transportation lane, the 14-elevating conveyor, 15-head fixed dam, the 16-hydraulic jack, 17-head telescopic baffle, the 18-coupling components, the 19-work plane, the 20-tail bent plate that stretches, 21-tail telescopic baffle, the hydraulic jack of 22-secondary telescoping mechanism, the hydraulic jack of 23-one-level telescoping mechanism, 24-tail fixed dam, 25-air way or return airway, the 26-coupling components, the 27-cylinder, 28-round-link chain or chain, 29 and 30-cross coal space I and II, 31-coal-winning machine bottom bracket, 32-poppet pendular body, 33-poppet outer case, 34-poppet internal box, the 35-hydraulicefficiency elevation structure, the double-stranded center to center distance of M-.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
Composition at thin coal bed fully-mechanized mining scraper conveyor of the present invention shown in Fig. 1,2.It is the drag conveyor of the straight layout of plate in a kind of head, the tail, mainly is made of head 1, tail 12, intermediate channel 6, scraper chain etc.
1. the straight layout of middle plate of the head of drag conveyor, tail:
1. in the whole laying length of drag conveyor, the middle plate of its head 1, tail 12 and the middle plate of intermediate channel 6 are horizontal arrangement, are in sustained height, remain consistent layout.The angle of plate is take about zero degree as preferred in the middle plate of head 1, tail 12 and the intermediate channel 6, can have+upper uplifting angles of 6 degree are to the angles of descent of-20 degree.Upwarp angle less than universal drag conveyor, generally be not more than+8 the degree, head is a little more than intermediate channel, still applicable to thin seam mining in this scope; The decline angle can be to-20 degree, and this moment, the conveyer head was lower than intermediate channel, can adapt to well thin seam mining.
The advantage of this layout is to make the haulage gear 8 that is installed in coal-winning machine 5 on the drag conveyor, be rack rails, chain rail etc., keep straight layout, avoid top top board on the frame head and tail, guarantee that coal-winning machine move in whole work plane that pivot angle is constant under constant, the cylinder of height degree on opportunity, the cut degree of depth is constant, solution thin coal bed fully-mechanized mining cut work plane two ends Triangle Coal and head unloading place the coal space problem.
2. the scraper plate of head 1, tail 12 moves lower chain road 4, the 9th, anti-curve shaped.Scraper chain enters the process that has before the lower chain road 4 one to rise along base plate through machine head chain wheel, and each scraper plate operates in this Duan Shiyu base plate collision, shakes and skids off along head sticking to raw coal on the scraper chain.The chain road retracts a coal under this structure decrease drag conveyor, and is particularly outstanding for the advantage of this structure of sealing bottom type drag conveyor.If it is too much that the drag conveyor end chain of back cover structure retracts a coal, base plate or middle plate distortion, outwardly can occur, cause the middle pan of scraper conveyor damage.
3. arrangement: head 1, tail 12 and lead-over groove are arranged in up and down in the crossheading fully, do not need to increase planted agent's amount of coal-winning machine.
4. increase the excessively coal space that drag conveyor is positioned at head, simplify the equipment configuration at head, tail place.
5. head 1, tail 12 have respectively liftable poppet 2,11, can adjust at any time the height of scraper plate head 1, tail 12, improve scrapper conveyor to the tunnel or/and the adaptive capacity of floor undulation fluctuations.
All the other have among the figure: lower chain road 9 and the cochain road 10 of head section cochain road 3 and lower chain road 4, tail.
2. head eqipment:
Structure at head eqipment shown in Fig. 3,4.This device is used near the raw coal that work plane is positioned at the conveyer head is transported to elevating conveyor, solves the problem that float coal that work plane is in the fortune heading falls into the tunnel.
1. the head eqipment is installed in shovel board 7 one sides of conveyer head 1 by coupling components 18, and its structure is a telescopic slot-type device, with 14 one-tenths certain inclination angles of elevating conveyor layout in stope 19 and fortune lane 13, the raw coal landing of being convenient to be located thereon.The head eqipment is comprised of fixed dam 15, telescopic baffle 17, hydraulic jack 16 etc.Telescopic baffle 17 can be moved back and forth at fixed dam 15 slideways by hydraulic jack 16 controls.Except consisting of hydraulic telescopic machanism by hydraulic jack, also can adopt other mechanical retractable mechanism.Such as the telescoping mechanism that is consisted of by leading screw, screw etc.
2. the head eqipment course of work: move to conveyer head 1 front startup telescoping mechanism 16 at coal-winning machine 5 telescopic baffle 17 is docked with the side, tunnel, between work plane side and elevating conveyor 14, form continuous flute profile passage; When coal-winning machine 5 moved near 1 coal cutting of drag conveyor head, the part raw coal is caving fell into the head eqipment, slips into elevating conveyor 14 along the head eqipment.
3. the head eqipment is particularly useful for thin coal bed fully-mechanized mining.Because the low seam mining machinery fuselage is short, diameter of cylinder is little, the loading weak effect; And coal mining machine roller counter-rotates, and near the drag conveyor of can't packing into of a large amount of raw coal under being cut the conveyer head also can be dished out laterally by cylinder.Or/and coal-winning machine when being cut to this position next time, this place's raw coal is pushed to the tunnel when moving conveyor, can only the labor cleaning, recovery.Use the head eqipment, realized that the mechanization of thin seam working surface head coalings.
3. tail retracting device:
Structure at tail retracting device shown in Fig. 5,6.This device cooperates with coal mining machine roller 27, is used near the raw coal that work plane 19 is positioned at the conveyer tail 12 are loaded into conveyer, solves the problem that two float coal that are in air way 25 1 ends as face fall into the tunnel.
1. the structure of tail retracting device is a telescopic slot-type device, is installed in the side that conveyer tail 12 has shovel board 7 by coupling components 26.
The tail retracting device is comprised of fixed dam 24, telescopic baffle 21, flexible bent plate 20, two-stage hydraulic telescopic machanism and coupling components 26 etc.Telescopic baffle 21 is positioned at fixed dam 24, the hydraulic jack 23 of hinged one-level contracting mechanism between the two; Flexible bent plate 20 is positioned at telescopic baffle 21, the hydraulic jack 22 of hinged secondary telescoping mechanism between the two, and flexible bent plate 20 and telescopic baffle 21 can be moved back and forth at the slideway of fixed dam 24 by hydraulic telescopic machanism control.
Be positioned at the terminal flexible bent plate 20 of groove, and form arc passage of coalingging between the coal mining machine roller 27; The raw coal of pressure between cylinder 27 and flexible bent plate 20 is thrown into chute along cylinder 27 helixes.
Same with the head eqipment, the two-stage telescoping mechanism also can adopt other mechanical retractable mechanism except consisting of hydraulic telescopic machanism by hydraulic jack.
2. the course of work of tail retracting device: the hydraulic jack 23 that starts the one-level telescoping mechanism before coal-winning machine moves to the conveyer tail docks telescopic baffle 21 with air way 25 sides; The coal-winning machine coal cutting is exercised to drag conveyor tail stopping means place, and coal mining machine roller 27 and part raw coal are caving in the channel section that enters the tail retracting device; Rocker arm of coal mining machine is down to maximum planted agent, and the distance that the hydraulic jack 22 of startup secondary telescoping mechanism reduces flexible bent plate 20 and coal mining machine roller 27 is 100 to 200 millimeters, forces to be positioned at their middle raw coal and is thrown into drag conveyor.
The scraper chain of the drag conveyor double center chain scraper chain that is as the criterion, or claim the double center chain scraper plate of wide chain pitch.The center to center distance M of two chains of scraper chain is between the chain pitch of double center chain and limit two strands.
4. adopt accurate double center chain scraper chain form:
Accurate double center chain scraper chain shown in Figure 7 is positioned at the structure of intermediate channel 6.It is the center to center distance M increasing with two round-link chains 28 of scraper chain, makes it between the double-stranded reference center distance of double center chain and limit.
1. compare with the double-stranded scraper chain form in limit, two round-link chains 28 are positioned on the ledge along the outside, can strengthen the chain specification in the situation that does not increase the middle pan of scraper conveyor height.
2. during thin seam mining, after two chain center to center distance M strengthen, the coal-winning machine bottom cross coal space II (29) though become, cross coal space II (30) and strengthen, allow larger sized lump coal by coal-winning machine bottom bracket 31.
5. liftable poppet:
Structure at the liftable poppet of head shown in Fig. 8,9, tail.This lifting of device by poppet changes the height of handpiece of scraper conveyer, tail, thereby conveyer head, tail keep level with the conveyer intermediate channel all the time when realizing at the bottom of the relative tunnel of fully-mechanized mining working height change.
1. the liftable poppet is comprised of poppet pendular body 32, poppet outer case 33, poppet internal box 34 and hydraulicefficiency elevation structure.Poppet pendular body 32 is installed in the conveyer tail or/and the bottom surface of tail, and its lower end and poppet outer case 33 tops are hinged, but counter piece out of frame box body 33 turns an angle.Poppet outer case 33 is sleeved on the poppet internal box 34, and can move up and down along the guide rail of poppet internal box 33, and its operation power and position are provided by hydraulicefficiency elevation structure.Hydraulicefficiency elevation structure is comprised of two hydraulic jacks 35 that are articulated between poppet internal box 34, the outer case 33; Two oil cylinders 35 lay respectively at the inside and outside casing 34 of poppet, 33 both sides.Hydraulicefficiency elevation structure provides the power of adjusting the poppet height and lock poppet with securing member after adjustment is finished.The base plate of poppet internal box 34 is placed on the bottom surface, tunnel, and its base plate two ends have drawing that mobile poppet uses to move or pass otic placode.
Elevating mechanism between poppet outer case 3 and the internal box 34 also can adopt other mechanical adjusting mechanism, such as being made of screw, leading screw, handwheel etc.
The course of work of liftable poppet: when opposite working bottom surface, tunnel height changes, the conveyer head is or/and tail can not be not consistent with the conveyer intermediate channel time, open the locking piece of hydraulicefficiency elevation structure, the primer fluid cylinder pressure increases or reduces the distance of outer case in the poppet; After being in the height of requirement to conveyer head or tail, the locking poppet.In the head lifting process, the poppet pendular body is adjusted the angle of conveyer head or tail and poppet automatically.
3. the liftable poppet solved fully-mechanized mining working or and the conveyer head that causes of tunnel fluctuations or/and the scraggly problem of tail, both be conducive to the processing of frame head and tail Triangle Coal, can make again the drag conveyor complete machine be in all the time level, the excessive damage or/and tail rises and falls of avoiding the conveyer head.
Drag conveyor of the present invention is applicable to along the thin coal bed fully-mechanized mining face of top pick end exploitation, is particularly useful for the larger lump coal of lumpiness, Containing Sulfur ferruginous concretions and/or the hard thin coal bed fully-mechanized mining face of dirt band.The drag conveyor of this form of structure can be used for medium-thickness seam, mining in combined mining thick coal seam work plane equally.
Claims (6)
1. a thin coal bed fully-mechanized mining scraper conveyor comprises head, tail, intermediate channel, scraper chain; Head has the device of adjusting height, it is characterized in that: the middle plate of said head (1), tail (12) is horizontal arrangement, be in sustained height with the middle plate of intermediate channel (6), the angular range with the middle plate of intermediate channel (6) in using is 0+6 degree～0-20 degree; The lower chain road (4,9) of the scraper plate operation of head (1), tail (12) is anti-curve shaped; The device of the adjustment height of said head is the liftable poppet (2) of head (1) bottom; The liftable poppet (11) of adjusting the tail height is also arranged at the bottom of said tail (12).
2. thin coal bed fully-mechanized mining scraper conveyor according to claim 1, it is characterized in that: said head (1) has head eqipment and/or tail (12) that the tail retracting device is arranged;
The head eqipment is contained in conveyer head (1) shovel board side, is a telescopic slot-type device, is to be in tilted layout between work plane and elevating conveyor, comprises fixed dam (15), telescopic baffle (17), telescoping mechanism; Fixed dam (15) is fixed on head shovel board side by link (18), telescoping mechanism be connected in fixed dam (15), telescopic baffle (17) between; Telescopic baffle (17) can be along on the slideway of fixed dam, reciprocatingly slide by rib under telescoping mechanism control;
The tail retracting device is contained in conveyer tail (12) shovel board side, is a telescopic slot-type device, comprises fixed dam (24), telescopic baffle (21), flexible bent plate (20), two telescoping mechanisms of firsts and seconds; Fixed dam (24) is fixed on tail (12) shovel board side by coupling components (26); The one-level telescoping mechanism is connected between fixed dam (24), the telescopic baffle (21), the secondary telescoping mechanism is connected between telescopic baffle (21) and the flexible bent plate (20), and telescopic baffle (21) and flexible bent plate (20) can reciprocatingly slide along the slideway of fixed dam (24) under telescoping mechanism control; Telescopic baffle (21) and flexible bent plate (20) can move back and forth by the slideway along fixed dam (24) under telescoping mechanism control; Be the arc passage of coalingging between flexible bent plate (20) and the coal mining machine roller (27).
3. thin coal bed fully-mechanized mining scraper conveyor according to claim 2, it is characterized in that: the telescoping mechanism of said head eqipment is hydraulic telescopic machanism, and its hydraulic jack (16) is articulated between the bottom surface of fixed dam (15), telescopic baffle (17);
The one-level telescoping mechanism of said tail retracting device is hydraulic telescopic machanism, and its hydraulic jack (23) is articulated between fixed dam (24), telescopic baffle (21) bottom surface; The secondary telescoping mechanism is hydraulic telescopic machanism, and its hydraulic jack (22) is articulated between telescopic baffle (21) and flexible bent plate (20) bottom surface.
4. thin coal bed fully-mechanized mining scraper conveyor according to claim 1 is characterized in that: said scraper chain be as the criterion the double center chain scraper chain, be the double center chain scraper chain of wide chain pitch; The center to center distance (M) of two round-link chains (28) of scraper chain is between the chain pitch of double center chain and limit two strands.
5. thin coal bed fully-mechanized mining scraper conveyor according to claim 1, it is characterized in that: said liftable poppet comprises poppet pendular body (32), poppet outer case (33), poppet internal box (34) and elevating mechanism; Poppet pendular body (32) end face is fixed on conveyer head or tail bottom surface, and its lower end and poppet outer case (33) are hinged, and poppet outer case (33) is enclosed within outside the poppet internal box (34), and elevating mechanism is connected between the two; Under the elevating mechanism effect, poppet outer case (33) can slide up and down along poppet internal box (34); The base plate two ends of poppet internal box (34) are drawn and are moved or pass otic placode.
6. thin coal bed fully-mechanized mining scraper conveyor according to claim 5, it is characterized in that: said elevating mechanism is hydraulicefficiency elevation structure, its hydraulic jack (35) is articulated between poppet outer case (33), the poppet internal box (34).
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910014819 CN101871360B (en) | 2009-04-22 | 2009-04-22 | Thin coal bed fully-mechanized mining scraper conveyor |
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| CN 200910014819 CN101871360B (en) | 2009-04-22 | 2009-04-22 | Thin coal bed fully-mechanized mining scraper conveyor |
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| CN101871360B true CN101871360B (en) | 2013-03-27 |
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| CN201391334Y (en) * | 2009-04-22 | 2010-01-27 | 兖州煤业股份有限公司 | Scraper conveyor for fully-mechanized mining in thin seam |
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| CN101871360A (en) | 2010-10-27 |
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