CN113443348B - Wear-reducing bottomless chain scraper conveyor - Google Patents
Wear-reducing bottomless chain scraper conveyor Download PDFInfo
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- CN113443348B CN113443348B CN202110596952.4A CN202110596952A CN113443348B CN 113443348 B CN113443348 B CN 113443348B CN 202110596952 A CN202110596952 A CN 202110596952A CN 113443348 B CN113443348 B CN 113443348B
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- scraper
- chain
- supporting plate
- shaped groove
- baffle
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- 239000000463 material Substances 0.000 claims description 12
- 238000005299 abrasion Methods 0.000 abstract description 7
- 239000003245 coal Substances 0.000 description 22
- 238000000034 method Methods 0.000 description 10
- 230000007704 transition Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000005266 casting Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
- B65G19/04—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors for moving bulk material in open troughs or channels
- B65G19/06—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors for moving bulk material in open troughs or channels the impellers being scrapers similar in size and shape to the cross-section of the trough or channel
- B65G19/10—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors for moving bulk material in open troughs or channels the impellers being scrapers similar in size and shape to the cross-section of the trough or channel and attached to a pair of belts, ropes or chains
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
- B65G19/18—Details
- B65G19/20—Traction chains, ropes, or cables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
- B65G19/18—Details
- B65G19/22—Impellers, e.g. push-plates, scrapers; Guiding means therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
- B65G2201/045—Sand, soil and mineral ore
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2207/00—Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
- B65G2207/48—Wear protection or indication features
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pusher Or Impeller Conveyors (AREA)
Abstract
The utility model provides a bottom chain-free scraper conveyor capable of reducing abrasion, belonging to the technical field of scraper conveyors, comprising: the scraper chain driving device can drive the scraper chain to horizontally do circular motion; when the scraper chain runs in the scraper conveyor, the scraper chain horizontally moves circularly, the lower chain is not required to return to the chain, and the scraper chain runs on the upper surface of the conveying groove, so that the scraper chain can be overhauled timely.
Description
Technical Field
The utility model relates to the technical field of scraper conveyors, in particular to a bottom-chain-free scraper conveyor capable of reducing abrasion.
Background
As is well known, in the prior art, as in the first production site of coal, a mining scraper conveyor is disclosed in chinese patent No. 201911030672.6, and a scraper conveyor is disclosed in chinese patent No. 201510627204.2, wherein a scraper is disposed at an upper portion of a middle plate, both ends of the scraper are moved together with the chain by a pulling force of the chain, so that materials are scraped from one place to another place, and meanwhile, due to a conveying principle of a conventional scraper conveyor, the scraper chain is designed to move back and forth in a vertical direction, so that the scraper chain for conveying the materials is mainly a scraper chain of an upper chain path, the scraper chain of a lower chain path is mainly a return chain, and when the scraper chain is operated, the scraper chain is completely closed, and when the scraper chain is operated, the scraper chain is easily pulled apart, and thus, the scraper chain cannot be overhauled in time.
Disclosure of Invention
In view of the above, the utility model provides a bottomless chain scraper conveyor capable of reducing abrasion, which solves the technical problems that a chain is easily broken in the running process of a scraper chain and the scraper chain cannot be overhauled in time.
The technical scheme adopted for solving the technical problems is as follows:
a wear-reducing bottomless chain scraper conveyor that reduces wear, comprising: the scraper chain driving device can drive the scraper chain to horizontally do circular motion.
Preferably, the scraper chain comprises: the scraper assembly is fixedly connected with one end of the chain, the other end of the scraper assembly is a free end, the chain is a closed curve, and the scraper chain driving device can drive the scraper assembly to horizontally do circular motion.
Preferably, the squeegee assembly comprises: the scraper blade body, walking wheel, the one end of scraper blade body with chain fixed connection, the other end of scraper blade body is the free end, the walking wheel is located the lower part of scraper blade body free end, the walking wheel supports the scraper blade body slides, improves the smoothness nature of scraper blade body operation.
Preferably, the double flighting body length is less than the spacing formed by the closing of the chain.
Preferably, the spacing between adjacent scraper bodies is greater than the circumference of the scraper chain drive.
Preferably, the axis of the scraper chain drive is parallel to the axis of the chain.
According to the technical scheme, in the bottom-chain-free scraper conveyor with the abrasion reduced, the scraper chains and the scraper chain driving device can drive the scraper chains to horizontally do circular motion, when the scraper chains run in the scraper conveyor, the scraper chains horizontally do circular motion, a lower chain return chain is not needed, the scraper chains all run on the upper surface of the conveying groove, and timely overhaul of the scraper chains is facilitated.
Drawings
Fig. 1 is a front view of a reduced wear endless chain scraper conveyor.
FIG. 2 is a top view of a bottom chain-less scraper conveyor with reduced wear.
Fig. 3 is a top view of a scraper chain run.
Fig. 4 is a front view of the tail.
Fig. 5 is a top view of the tail.
Fig. 6 is a top view of the tail (with the coal back cover removed).
Fig. 7 is a top view of the tail power unit installation position (with the coal back cover removed).
Fig. 8 is a top view of the second tail power unit installation position (with the coal back cover removed).
Fig. 9 is a top view III of the tail power unit installation position (with the coal back cover removed).
Fig. 10 is a front view of the handpiece.
Fig. 11 is a top view of the handpiece.
Fig. 12 is a top view of the power section mounting location (scraper chain) of the handpiece.
Fig. 13 is a top view of the nose power section installation position (scraper chain).
Fig. 14 is a top view of a third power section mounting position (scraper chain) of the handpiece.
Fig. 15 is a left side view of a conveying trough for a scraper conveyor of the comparative example prior art.
Fig. 16 is a front view of the conveying trough.
Fig. 17 is a top view of the transfer tank (with the baffle removed).
Fig. 18 is a left side view of the transfer tank.
In the figure: a prior art conveyor chute 1 for scraper conveyor, a prior art baffle ledge 2, a prior art blade ledge 3, a prior art blade 31, a prior art middle plate 4, and a prior art bottom plate 5.
The wear-reducing endless chain scraper conveyor 10, the head 100, the first sprocket shaft group 110, the inner gear 111, the outer gear 112, the power section 120, the head frame body 130, the first outgoing chain side 131, the first link plate 132, the tail 200, the second sprocket shaft group 210, the tail frame body 220, the second outgoing chain side 221, the telescopic chain tightening assembly 222, the moving frame 2221, the detachable cover plate 22211, the telescopic cylinder 2222, the first telescopic cylinder 22221, the first connecting pin hole 222211, the second connecting pin hole 222212, the second telescopic cylinder 22222, the third connecting pin hole 222221, the fourth connecting pin hole 222222, the chute 223, the coal return cover 224, the second link plate 225, the scraper chain 300, the scraper assembly 310, the scraper body 311, the road wheels 312, the chain 320, the conveying chute 400, the transition chute 410, the middle chute 420, the shovel board chute 42421, the shovel board 4211, the male connecting member 42111, the female connecting member 42112, the first C-shaped chute 4212, the pallet 422, the dumbbell pin 4221, the baffle housing 4231, the second C-shaped chute 4231, the ear rail 4234, the cable run 42430.
Detailed Description
The technical scheme and technical effects of the embodiments of the present utility model are further described in detail below with reference to the accompanying drawings.
Referring to fig. 1-18, a wear-reducing endless chain scraper conveyor 10, comprising: the machine head 100, the machine tail 200, the scraper chain 300 and the conveying groove 400, wherein the machine head 100 is positioned at one end of the conveying groove 400, the machine tail 200 is positioned at the other end of the conveying groove 400, the scraper chain 300 is positioned on the upper surface of the conveying groove 400, the machine head 100 is provided with a first chain wheel shaft group 110, the machine tail 200 is provided with a second chain wheel shaft group 210, and the scraper chain 300 comprises: the scraper assembly 310 and the chain 320, one end of the scraper assembly 310 is fixedly connected with the chain 320, the other end of the scraper assembly 310 is a free end, the chain 320 is meshed with the first sprocket shaft group 110 and the second sprocket shaft group 210 to form a complete closed loop to do circular motion above the conveying groove 400, the chain 320 is meshed with the first sprocket shaft group 110 and the second sprocket shaft group 210 to form a complete closed loop to be parallel to the plane of the conveying groove 400, the axes of the first sprocket shaft group 110 and the second sprocket shaft group 210 are perpendicular to the conveying groove 400, and the chain 320 drives the scraper assembly 310 to move on the conveying groove 400 to convey materials on the conveying groove 400; when the coal blocks fall into the conveying groove 400, the inner gear 111 rotates to drive the outer gear 112 to rotate, the outer gear 112 is meshed with the chain 320, the chain 320 drives the scraper assembly 310 to convey the coal blocks in the conveying groove 400 from the tail 200 to the machine head 100, and then the coal blocks are conveyed out, the chain 320 can horizontally move in the conveying groove 400, power consumed by chain returning is reduced, the abrasion-reducing bottomless chain scraper conveyor does not need a lower chain channel, and the abrasion-reducing height of the bottomless chain scraper conveyor is reduced.
Further, the scraper chain driving device is a first sprocket shaft group 110 and a second sprocket shaft group 210, the first sprocket shaft group 110 is the same as the second sprocket shaft group 210, and the first sprocket shaft group 110 includes: an inner gear 111 and an outer gear 112, wherein the inner gear 111 is meshed with the outer gear 112, and the outer gear 112 is meshed with the chain 320, so that the chain 320 drives the scraper to move on the conveying groove 400; the teeth of the external gear 112 are inclined to the shaft of the external gear 112, so that the teeth of the external gear 112 are thinner, and when the chain 320 drives the scraper body 311 into the tail 200 or the nose 100, the scraper body 311 can easily enter the upper surface of the external gear 112, and the chain 320 is engaged.
Further, the axes of the external gear 112 and the internal gear 111 are the same, and the axes of the external gear 112 and the internal gear 111 are perpendicular to the conveying groove 400; when the scraper chain 300 performs a circular motion parallel to the upper plane of the conveying groove 400, the axes of the external gear 112 and the internal gear 111 are perpendicular to the conveying groove 400, and the chain 320 can be well meshed with the external gear 112.
Further, referring to fig. 3 to 9, the tail 200 includes: the tail frame 220, the tail frame 220 is provided with a second chain outlet side 221, the tail frame 220 is connected with the conveying groove 400 at the second chain outlet side 221, the second chain outlet side 221 is used for feeding and discharging the chain 320, the outer side of the tail frame 220 is also provided with a power part 120, the power part 120 is positioned at any side of the tail frame 220, which is not the second chain outlet side 221, the power part 120 is provided with a second connecting plate 225, the power part 120 is connected with the tail frame 220 through the second connecting plate 225, the power part 120 is connected with the inner gear 111 through a worm gear and a worm, and the power part 120 is used for providing power for the second chain wheel shaft group 210, so that the second chain wheel shaft group 210 rotates to drive the scraper chain 300 to normally run; and the power part 120 can be installed on one side of the tail frame 220 capable of accommodating the power part 120 according to the position of the mine tunnel, so that the tail 200 is more conveniently installed in the mine tunnel, and different mine tunnels can be suitable.
Further, the power unit 120 may be installed at any position on the same side of the tail frame 220 according to the mine tunnel position.
Further, the top of the tail frame 220 is further provided with a telescopic chain tightening assembly 222, the telescopic chain tightening assembly 222 is slidably connected with two sides of the tail frame 220, the telescopic chain tightening assembly 222 is detachably connected with the second sprocket shaft group 210, and the second sprocket shaft group 210 is horizontally arranged in the tail frame 220, so that the overall height of the tail 200 is reduced, and the installation of the tail 200 in a mine tunnel is facilitated.
Further, two sides of the top of the tail frame 220 are symmetrically provided with a sliding groove 223, the sliding groove 223 and the second chain outgoing side 221 are not on the same side, and the sliding groove 223 is slidably connected with the telescopic chain tightening assembly 222.
Further, the telescopic link assembly 222 includes: the moving frame 2221 and the telescopic cylinder 2222, wherein the telescopic cylinder 2222 comprises a first telescopic cylinder 22221 and a second telescopic cylinder 22222, the first telescopic cylinder 22221 and the second telescopic cylinder 22222 are respectively positioned at two sides of the moving frame 2221, the moving frame 2221 is in sliding connection with the sliding groove 223, the moving frame 2221 is connected with the second chain wheel shaft group 210, two ends of the first telescopic cylinder 22221 are provided with a first connecting pin hole 222211 and a second connecting pin hole 222212, two ends of the second telescopic cylinder 22222 are provided with a third connecting pin hole 222221 and a fourth connecting pin hole 222222, the first telescopic cylinder 22221 is in pin joint with one side of the sliding groove 223 and one side of the moving frame 2221 through the first connecting pin hole 222211 and the second connecting pin hole 222212, and the second telescopic cylinder 22222 is in pin joint with the other side of the sliding groove 223 and the moving frame 2221 through the third connecting pin hole 222221 and the fourth connecting pin hole 222222; when the scraper chain 300 is loosened, the first telescopic cylinder 22221 and the second telescopic cylinder 22222 are started, the first telescopic cylinder 22221 and the second telescopic cylinder 22222 drive the movable frame 2221 to move towards the side far away from the second chain outlet side 221, the movable frame 2221 drives the second chain wheel shaft group 210 to also move towards the side far away from the second chain outlet side 221, so that the scraper chain 300 is tensioned, the operation of the scraper chain 300 is facilitated, if the scraper chain 300 needs to be repaired, when the scraper chain 300 needs to be loosened, the first telescopic cylinder 22221 and the second telescopic cylinder 22222 are started, the first telescopic cylinder 22221 and the second telescopic cylinder 22222 drive the movable frame 2221 to move towards the side close to the second chain outlet side 221, and the movable frame 2221 drives the second chain wheel shaft group 210 to also move towards the side close to the second chain outlet side 221, so that the scraper chain 300 is loosened, and the scraper chain 300 is beneficial to be repaired.
Further, the movable rack 2221 is provided with a detachable cover 22211, and the detachable cover 22211 is located at the other end of the tail frame 220 and is no longer on the same side as the second chain outgoing side 221.
Further, a semicircle is disposed in the middle of the detachable cover plate 22211, the radius of the semicircle is the same as the radius of the shaft portion of the external gear 112, the detachable cover plate 22211 is located below the tooth portion of the external gear 112, and when the second sprocket shaft group 210 needs to be repaired, the detachable cover plate 22211 is pulled out from the side far from the second chain outlet side 221, so that the second sprocket shaft group 210 is exposed, and the second sprocket shaft group 210 is detected and repaired.
Further, a coal return cover 224 is disposed at the top of the tail frame 220, the coal return cover 224 is in threaded connection with the tail frame 220, the coal return cover 224 is not in contact with the top of the second sprocket shaft group 210, and the coal return cover 224 prevents coal blocks from falling into the second sprocket shaft group 210, so as to affect the operation of the second sprocket shaft group 210.
Further, referring to fig. 10 to 14, the handpiece 100 includes: the machine head frame body 130, the machine head frame body 130 is provided with a first chain outlet side 131, the machine head frame body 130 is connected with the conveying groove 400 at the first chain outlet side 131, the first chain outlet side 131 is used for feeding and discharging the chain 320, the outer side of the machine head frame body 130 is also provided with a power part 120, the power part 120 is positioned at any side of the machine head frame body 130, which is not the first chain outlet side 131, the power part 120 is provided with a first connecting plate 132, the power part 120 is connected with the machine tail frame body 220 through the first connecting plate 132, the power part 120 is connected with the inner gear 111 through a worm gear, and the power part 120 is used for providing power for the first chain wheel shaft group 110, so that the first chain wheel shaft group 110 rotates to drive the scraper chain 300 to normally run; and the power part 120 can be installed on one side of the tail frame 220 capable of accommodating the power part 120 according to the position of the mine tunnel, so that the tail 200 is more conveniently installed in the mine tunnel, and different mine tunnels can be suitable.
Further, the power unit 120 may be installed at any position on the same side of the tail frame 220 according to the mine hole position
Further, the squeegee assembly 310 includes: the scraper blade body 311, walking wheel 312, the one end of scraper blade body 311 with chain 320 fixed connection, the other end of scraper blade body 311 is the free end, walking wheel 312 is located the lower part of scraper blade body 311 free end, just walking wheel 312 with the upper surface contact of conveyer trough 400, walking wheel 312 supports scraper blade body 311 slides, improves scraper blade body 311 operation smoothness nature. When one end of the scraper body 311 is fixed and the other end is a free end, the scraper body 311 moves forward along with the chain 320, the travelling wheels 312 reduce the resistance of the free end of the scraper body 311, the operation is smooth, and the two ends of the scraper body 311 can walk simultaneously, that is, the scraper body 311 always keeps walking vertically to the chain 320, so that the materials can be transported and removed as much as possible in the process of transporting the materials by the scraper.
Further, the width of the conveying groove 400 is greater than twice the length of the scraper body 311; enabling the scraper chain 300 on the conveyor pan 400 to operate normally.
Further, the distance between the adjacent scraper bodies 311 is larger than the circumference of the external gear 112, when the scraper bodies 311 rotate on the first sprocket shaft group 110 and the second sprocket shaft group 210, there is only one scraper assembly 310, so that the plurality of scraper assemblies 310 are prevented from rotating on the first sprocket shaft group 110 and the second sprocket shaft group 210, and the normal operation of the scraper is prevented from being affected.
Further, twice the length of the scraper body 311 is smaller than the diameter of the external gear 112; when the chain 320 returns to the conveying trough 400, the chain 320 moves circularly parallel to the upper plane of the conveying trough 400, and the scraper body 311 of the chain 320 during the material conveying and the chain returning process can not be affected by each other when the chain 320 moves circularly.
Further, the scraper body 311 has a length smaller than the diameter of the external gear 112.
Further, referring to fig. 2 and 16 to 18, the conveying trough 400 includes: transition groove 410, middle part groove 420, cable pit 430, first play chain side 131 connects the one end of transition groove 410, the one end of transition groove 410 is connected middle part groove 420 one end, the other end of middle part groove 420 is connected another one end of transition groove 410, another one end of transition groove 410 is connected second play chain side 221, a plurality of middle part groove 420 links up and forms the track of transportation coal, a plurality of cable pit 430 links up, sets up middle part groove 420 one side.
Further, the middle groove 420 includes: the scraper ledge 421, the supporting plate 422 and the baffle ledge 423, wherein the scraper ledge 421 is connected with one end of the supporting plate 422, the other end of the supporting plate 422 is connected with the baffle ledge 423, and the upper surface of the supporting plate 422 provides a running space for conveying materials by the scraper chain 300. The scraper chain 300 moves horizontally on the upper surface of the supporting plate 422, the chain 320 is not easy to break during the operation of the scraper chain 300, the scraper chain 300 can be checked on the upper surface of the supporting plate 422, once the scraper chain 300 is broken, the maintenance can be directly carried out on the upper surface of the supporting plate 422, and the operation is convenient; and the height of the middle groove 420 is significantly reduced, saving casting materials.
Further, the shovel board 4211 is further disposed on the shovel board ledge 421, the shovel board 4211 and the supporting plate 422 are not on the same horizontal plane, and the lower plane of the scraping plate and the extension line of the lower plane of the supporting plate 422 form an included angle of 0-10 degrees, so that the conveying trough 400 is more flexible in the turning process.
Further, a male connector 42111 is disposed at one end of the shovel 4211, a female connector 42112 is disposed at the other end of the shovel 4211, and the conveying groove 400 is connected with the front-rear connecting groove through the male connector 42111 and the female connector 42112, so that the connection is more convenient and tight.
Further, a first C-shaped groove 4212 is provided inside the shovel ledge 421, the shape of the first C-shaped groove 4212 can be adapted to the end of the scraper chain 300, the bottom of the first C-shaped groove 4212 is connected with one end of the supporting plate 422 away from the baffle ledge 423, the upper portion of the first C-shaped groove 4212 presses one end of the scraper chain 300, so as to prevent the scraper chain 300 from being separated from the upper portion of the supporting plate 422, and the upper portion of the first C-shaped groove 4212 is shorter, so that the abrasion of the scraper chain 300 to the upper portion of the first C-shaped groove 4212 is reduced, and the service life of the scraper chain is longer.
Further, dumbbell pin sockets 4221 are respectively disposed in the width direction of the supporting plate 422, so as to facilitate connection between the middle grooves 420.
Further, two rack seats 4232 are disposed on the upper portion of the baffle ledge 423, and the rack seats 4232 are located on the upper end surface of the baffle ledge 423.
Further, a second C-shaped groove 4231 is provided at the inner side of the baffle ledge 423, the upper end of the second C-shaped groove 4231 is connected to one end of the baffle 4235, the bottom of the second C-shaped groove 4231 is connected to one end of the supporting plate 422 away from the shovel ledge 421, the upper portion of the second C-shaped groove 4231 presses the other end of the scraper chain 300, so as to prevent the scraper chain 300 from separating from the upper portion of the supporting plate 422, and the upper portion of the second C-shaped groove 4231 is shorter, so that the abrasion of the scraper chain 300 to the upper portion of the second C-shaped groove 4231 is reduced, and the service life of the scraper chain is longer.
Further, the second C-shaped groove 4231 has the same shape as the first C-shaped groove 4212.
Further, the length of the baffle 4235 is smaller than one third of the width of the supporting plate 422, the cross section of the baffle 4235 is trapezoidal, and when the scraper chain 300 moves to the vicinity of the baffle ledge 423 to return, the baffle 4235 can prevent a small amount of coal falling off in the operation process of the coal mining machine from entering a return channel, so that the operation of the scraper chain 300 is affected. And the included angle between the baffle 4235 and the extension line of the upper end of the second C-shaped groove 4231 is 0 ° -10 °, so that the falling coal blocks can slide down in the middle of the supporting plate 422, so that the scraper chain 300 can conveniently convey the falling coal blocks.
Further, a rack 4233 is further provided on the upper end surface of the baffle ledge 423, and the rack 4233 is installed on the rack seat 4232, so that the traveling of the coal mining machine provides a traveling track.
Further, a pushing lug 4234 is further disposed on the side surface of the baffle ledge 423.
For ease of understanding, this will be further illustrated by the following comparative examples.
Comparative example:
referring to fig. 15, in the prior art, chinese patent publication No. CN201310257684.9 discloses a middle trough and a scraper conveyor 1 with the middle trough, which includes a prior art shovel ledge 3, a prior art baffle ledge 2, a prior art bottom plate 5, a prior art middle plate 4, the prior art shovel ledge 3, the prior art baffle ledge 2, the prior art bottom plate 5, the prior art middle plate 4, and the prior art pushing lugs are connected into a whole by welding; the middle groove in the prior art also comprises a bottom plate 5, the overall height of the middle groove is higher, casting loss materials are more, the middle groove cannot be used in shorter mine holes, the scraper chain surrounds the whole middle plate in the running process, the scraper chain is not easy to detect and tear, and the scraper chain is not easy to maintain after being torn; and the shovel plate and the bottom plate in the prior art are positioned on the same horizontal plane, and the middle groove is easy to collide in the turning process, so that the shovel plate in the prior art is easy to wear.
The wear-reducing bottom-chain scraper conveyor of the present utility model has a middle trough 420 comprising: the shovel plate ledge 421, the layer board 422, baffle ledge 423, shovel plate ledge 421 with the one end of layer board 422 is connected, the other end of layer board 422 with baffle ledge 423 is connected, baffle ledge 423 connects baffle 4235, baffle 4235 one end with baffle ledge 423 is connected, and the other end is the free end, the layer board 422 upper surface is scraper chain 300 operation space, baffle 4235 can block coal-winning machine a small amount of coal pieces that drop get into the return channel in the operation in-process, influences the operation of scraper chain 300. The utility model has no bottom plate in the prior art, and the heights of the baffle ledge 423 and the shovel ledge 421 are reduced by one third to one half compared with the prior art, so that the height of the whole conveying trough 400 is reduced, the utility model can adapt to shorter mine holes, materials can be saved in the casting process, the weight of the cast conveying trough 400 is obviously reduced, and the pallet 422 is selected to have a preset thickness according to the quantity of the conveyed coal and the size of the scraper chain 300, so that the strength of material transportation can be met; in the utility model, the scraper chain 300 moves horizontally on the upper surface of the supporting plate 422, the scraper chain 300 is not easy to break in the running process of the scraper chain 300, the scraper chain 300 can be checked on the upper surface of the supporting plate 422, once the scraper chain 300 is broken, the upper surface of the supporting plate 422 can be maintained directly, and the operation is convenient; in the present utility model, the lower surface of the shovel 4211 forms a certain angle with the lower surface of the supporting plate 422, so that the conveying trough 400 is more flexible in the turning process, and the abrasion between the shovel 4211 is reduced.
The foregoing disclosure is illustrative of the preferred embodiments of the present utility model, and is not to be construed as limiting the scope of the utility model, as it is understood by those skilled in the art that all or part of the above-described embodiments may be practiced with equivalents thereof, which fall within the scope of the utility model as defined by the appended claims.
Claims (4)
1. A wear-reducing endless chain scraper conveyor, comprising: the scraper chain driving device can drive the scraper chain to horizontally do circular motion on the conveying groove;
the scraper chain comprises: the scraper chain driving device can drive the scraper assembly to horizontally do circular motion;
the squeegee assembly includes: the scraper comprises a scraper body and a travelling wheel, wherein one end of the scraper body is fixedly connected with the chain, the other end of the scraper body is a free end, the travelling wheel is positioned at the lower part of the free end of the scraper body, and the travelling wheel supports the scraper body to slide, so that the running fluency of the scraper body is improved;
the interval between the adjacent scraper bodies is larger than the circumference of the scraper chain driving device;
the conveying trough includes a middle trough, the middle trough includes: the scraper plate ledge is connected with one end of the supporting plate, the other end of the supporting plate is connected with the baffle ledge, and the upper surface of the supporting plate provides a running space for conveying materials for the scraper chain;
the inner side of the scraper ledge is provided with a first C-shaped groove, the shape of the first C-shaped groove can be matched with the end part of the scraper chain, the bottom of the first C-shaped groove is connected with one end of the supporting plate far away from the baffle ledge, and the upper part of the first C-shaped groove presses one end of the scraper chain to prevent the scraper chain from being separated from the upper part of the supporting plate;
the inner side of the baffle ledge is provided with a second C-shaped groove and a baffle, the upper end of the second C-shaped groove is connected with one end of the baffle, the bottom of the second C-shaped groove is connected with one end of the supporting plate far away from the baffle ledge, and the other end of the scraper chain is pressed by the upper part of the second C-shaped groove to prevent the scraper chain from being separated from the upper part of the supporting plate; the length of the baffle is smaller than one third of the width of the supporting plate, and the included angle between the baffle and the extension line of the upper end of the second C-shaped groove is 0-10 degrees.
2. The reduced wear bottomless chain scraper conveyor of claim 1, wherein twice the scraper body length is less than the spacing formed by the chain closure.
3. The reduced wear bottomless chain scraper conveyor of claim 2, wherein the spacing between adjacent scraper bodies is greater than the circumference of the scraper chain drive.
4. A wear-reducing bottomless chain scraper conveyor as in claim 3 wherein the axis of the scraper chain drive is parallel to the axis of the chain.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT381290B (en) * | 1983-04-08 | 1986-09-25 | Manfred Lindner Ges M B H Masc | TROUGH CHAIN CONVEYOR |
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| CN101863365A (en) * | 2010-05-20 | 2010-10-20 | 宜都思迈得机械电气有限公司 | Ultra-long distance horizontal buried scraper conveyor |
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