Large-inclination upraise scraper

Abstract

This utility model discloses a large-angle uphill scraper conveyor, including a chute, a traction mechanism, and scrapers. The chute includes two side plates and an upper and lower chute plate connected between the two side plates. The lower chute plate has a scraper retraction guide at its head end and a scraper deployment guide at its tail end. The traction mechanism includes a head shaft installed at the head of the chute, a tail shaft installed at the tail of the chute, and two sets of chain assemblies. The chain assemblies include a head sprocket, a tail sprocket, and chains connecting the head and tail sprockets. The head sprockets of the two sets of chain assemblies are respectively located at both ends of the head shaft, and the tail sprockets of the two sets of chain assemblies are respectively located at both ends of the tail shaft. The upper part of each chain is located on the upper side of the upper chute plate, and the lower part of each chain is located on the upper side of the lower chute plate. The scrapers are installed between the chains of the two sets of chain assemblies via hinges. This utility model improves the efficiency of the scraper conveyor for uphill lifting while reducing the height of the scraper conveyor.

Description

Technical Field

[0001] This utility model relates to the field of material conveying technology, specifically to a large-angle uphill lifting scraper conveyor. Background Technology

[0002] steep incline tunneling refers to tunneling operations carried out in downhill tunnels with a large incline (usually greater than 15°), and is widely used in the mining industry.

[0003] Mineral hoisting uphill is a challenging problem in steep downhill tunneling. Currently, mineral hoisting uphill generally uses trailer transportation, which is inefficient, resulting in slow tunneling speed and long working face formation time. At the same time, trailer transportation carries a high risk of rope breakage, as the path from the face to the top is a smooth channel, which can easily cause the bucket to tip over and roll down to the face, injuring people.

[0004] A scraper conveyor is a common material conveying equipment. It primarily utilizes a rigid connection between a chain and scrapers, with a sprocket driving the chain in a cyclical motion, causing the scrapers to continuously transport materials within a chute. When using a scraper conveyor for steep incline lifting, the height of the scrapers needs to be increased to ensure sufficient transport capacity. This increase in scraper height inevitably increases the height of the scraper chute. Furthermore, as the working face advances, the scraper conveyor also needs to extend forward. Current scraper conveyors suffer from the inconvenience of extending the chute plates, making them unsuitable for steep incline lifting. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a large-angle uphill lifting scraper conveyor to improve the efficiency of uphill lifting while reducing the height of the scraper conveyor.

[0006] This utility model provides a large-angle uphill lifting scraper conveyor, comprising:

[0007] A chute includes two side plates and an upper chute plate and a lower chute plate connected between the two side plates. A material conveying channel is formed on the upper side of the upper chute plate, and a scraper circulation channel is formed between the lower chute plate and the upper chute plate. The head end of the lower chute plate has a scraper retraction guide that extends obliquely away from the upper chute plate, and the tail end of the lower chute plate has a scraper unfolding guide that extends obliquely away from the upper chute plate.

[0008] The traction mechanism includes a head shaft, a tail shaft, and two sets of chain assemblies symmetrically arranged on the left and right sides. The head shaft is rotatably mounted on the head section of the chute, and the tail shaft is rotatably mounted on the tail section of the chute. The upper surface of the circumferential surfaces of the head shaft and the tail shaft are tangent to the upper surface of the upper chute plate. The chain assembly includes a head sprocket, a tail sprocket, and chains with their ends meshing with the head sprocket and the tail sprocket, respectively. The head sprockets of the two sets of chain assemblies are coaxially arranged at both ends of the head shaft, and the tail sprockets of the two sets of chain assemblies are coaxially arranged at both ends of the tail shaft. The upper part of each chain is located on the left and right sides of the upper surface of the upper chute plate, and the lower part of each chain is located on the left and right sides of the upper surface of the lower chute plate.

[0009] Scrapers, multiple scrapers are distributed at intervals along the chain. The scrapers are installed between the chains of two sets of chain assemblies via hinges. One end of the scraper is provided with a support plane, which is used to support the scraper on the upper groove plate when it moves to the upper side of the upper groove plate.

[0010] Furthermore, the inner sides of the two side plates are provided with pressure strips that are respectively limited to the upper side of the chain on the corresponding side.

[0011] Furthermore, the scraper protrudes forward and backward on both sides of the end near the support plane, and the hinge shaft is connected to the forward protruding part of the scraper.

[0012] Furthermore, the two ends of the hinge shaft are respectively fixed on the chains of the two sets of chain assemblies, and the scraper is rotatably mounted on the hinge shaft.

[0013] Furthermore, a plurality of first ear plates are provided at intervals on both sides of the upper groove plate. The first ear plates are provided with first pin holes. The first ear plates on both sides of the upper groove plate pass through the through holes on the corresponding side plates and are locked to the outside of the side plates by fixing pins passing through the first pin holes.

[0014] The lower groove plate is provided with several second ear plates at intervals on both sides. The second ear plates are provided with second pin holes. The second ear plates on both sides of the lower groove plate pass through the through holes on the corresponding side plates and are fixed to the outside of the side plates by fixing pins passing through the second pin holes.

[0015] Furthermore, the first ear plate and the second ear plate are in one-to-one correspondence, and each pair of the first ear plate and the second ear plate is fixed by the same fixing pin.

[0016] Furthermore, the side plate is assembled from several side plate units along its length, the upper groove plate is assembled from several upper groove plate units along its length, and the lower groove plate is assembled from several lower groove plate units along its length. The joints of the side plates are staggered from the joints of the upper groove plate units and the joints of the lower groove plate units.

[0017] Furthermore, it also includes a tail tensioning mechanism, which is used to tension the tail sprockets and chains of the two sets of chain assemblies.

[0018] Furthermore, the tail section of the chute can extend and retract relative to the length of the chute, and the tail tensioning mechanism is a tail tensioning cylinder that drives the tail section of the chute to extend and retract.

[0019] Furthermore, anti-rock-blocking curtains are provided at intervals along the length of the chute on the upper side of the chute.

[0020] The beneficial effects of this utility model are reflected in:

[0021] This invention employs a rotatable scraper. The upper scraper stands upright on the upper trough plate, and the chains on both sides drive the scraper forward to push the ore in the material conveying channel uphill to the front end of the chute. After the scraper moves to the front end of the chute, it rotates along the outer circumference of the machine head shaft to the lower side, and then is guided by the scraper retraction guide to the scraper circulation channel. As the distance between the scraper retraction guide and the chain gradually decreases, the scraper gradually flips to a flat state under the guidance of the scraper retraction guide. The flat scraper moves along the scraper circulation channel between the lower and upper trough plates to the tail end of the chute, and then passes through the scraper unfolding guide. The distance between the scraper unfolding guide and the chain gradually increases, and the scraper gradually unfolds to an upright state under the guidance of the scraper unfolding guide. After the scraper unfolds to an upright state, it rotates along the outer circumference of the tail shaft to the upper side, thus circulating the scraper to the upper side of the upper trough plate.

[0022] This utility model employs a scraper conveyor with a large incline to lift ore uphill. By increasing the height of the scraper, the lifting and transporting capacity can be increased. The increased scraper height also prevents large pieces of gangue from rolling downhill. At the same time, the scraper can be laid flat and moved horizontally within the scraper channel, thereby reducing the height requirement of the scraper channel and lowering the height of the scraper conveyor. Compared with traditional uphill lifting and transport methods, this significantly improves the efficiency of uphill lifting, thereby increasing the speed of downhill tunneling, while also enhancing safety. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0025] Figure 2This is a schematic diagram of the head section of an embodiment of the present utility model;

[0026] Figure 3 This is a schematic diagram of the tail section of an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the scraper structure in an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the connection between the scraper and the chain in an embodiment of the present invention;

[0029] Figure 6 This is a front view of the chute according to an embodiment of the present invention;

[0030] Figure 7 This is a side view of the chute according to an embodiment of the present invention;

[0031] Figure 8 This is a top view of the chute according to an embodiment of the present invention;

[0032] Figure 9 This is a schematic diagram of the structure of the anti-flying stone and rock barrier curtain according to an embodiment of this utility model.

[0033] In the attached diagram, 100-chute; 110-side plate; 111-pressure strip; 112-handle; 120-upper chute plate; 121-first ear plate; 122-first pin hole; 130-lower chute plate; 131-second ear plate; 132-second pin hole; 140-material conveying channel; 150-scraper circulation channel; 160-scraper retraction guide; 170-scraper unfolding guide; 180-fixing pin; 200-traction mechanism; 210-head shaft; 220-tail shaft; 230-head sprocket; 240-tail sprocket; 250-chain; 300-scraper; 310-hinge shaft; 320-support plane; 400-tail tension cylinder; 500-anti-flying stone and gangue curtain. Detailed Implementation

[0034] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0035] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0036] like Figures 1-9 As shown in the figure, this utility model embodiment provides a large-angle uphill lifting scraper conveyor, including a chute 100, a traction mechanism 200 and a scraper 300.

[0037] Reference Figure 2 , Figure 3 and Figure 6 The chute 100 includes two side plates 110 and an upper chute plate 120 and a lower chute plate 130 connected between the two side plates 110. A material conveying channel 140 is formed on the upper side of the upper chute plate 120, and a scraper circulation channel 150 is formed between the lower chute plate 130 and the upper chute plate 120. The head end of the lower chute plate 130 has a scraper retraction guide 160 that extends obliquely away from the upper chute plate 120, and the tail end of the lower chute plate 130 has a scraper unfolding guide 170 that extends obliquely away from the upper chute plate 120.

[0038] The traction mechanism 200 includes a head shaft 210, a tail shaft 220, and two sets of chain assemblies arranged symmetrically on the left and right.

[0039] Reference Figure 2 and Figure 3 The head shaft 210 is rotatably mounted on the head part of the chute 100, and the tail shaft 220 is rotatably mounted on the tail part of the chute 100. The upper side of the circumferential surface of the head shaft 210 and the tail shaft 220 are respectively tangent to the upper side of the upper trough plate 120.

[0040] Reference Figure 2 Pattern 3 and Figure 6 The chain assembly includes a head sprocket 230, a tail sprocket 240, and a chain 250 with both ends meshing with the head sprocket 230 and the tail sprocket 240, respectively. The head sprockets 230 of the two chain assemblies are coaxially arranged at both ends of the head shaft 210, and the tail sprockets 240 of the two chain assemblies are coaxially arranged at both ends of the tail shaft 220. The upper part of each chain 250 is respectively located on the left and right sides of the upper side of the upper groove plate 120, and the lower part of each chain 250 is respectively located on the left and right sides of the upper side of the lower groove plate 130.

[0041] Reference Figures 2-6 Multiple scrapers 300 are distributed at intervals along the chain 250. The scrapers 300 are installed between the chains 250 of the two chain assemblies via hinge pins 310. One end of the scraper 300 is provided with a support plane 320, which is used to support the scraper 300 on the upper groove plate 120 when the scraper 300 moves to the upper side of the upper groove plate 120.

[0042] This utility model employs a rotatable scraper 300. The upper scraper 300 stands on the upper trough plate 120, and the chains 250 on both sides can drive the scraper 300 forward to push the ore in the material conveying channel 140 uphill to the front end of the chute 100. After the scraper 300 moves to the front end of the chute 100, it will rotate along the outer circumference of the head shaft 210 to the lower side, and then be guided by the scraper retraction guide 160 into the scraper circulation channel 150. As the distance between the scraper retraction guide 160 and the chain 250 gradually decreases, when the scraper 300 passes the scraper retraction guide 160, it will gradually rotate to a flat state under the guidance of the scraper retraction guide 160 (e.g., ...). Figure 2 As shown), the flat scraper 300 moves along the scraper channel 150 between the lower trough plate 130 and the upper trough plate 120 to the tail section of the chute 100, and then passes through the scraper unfolding guide 170. The distance between the scraper unfolding guide 170 and the chain 250 gradually increases, and the scraper 300 gradually unfolds to an upright state under the guidance of the scraper unfolding guide 170 (as shown). Figure 3 As shown), after the scraper 300 is unfolded to the upright position, it rotates along the outer circumference of the tail shaft 220 to the upper side, thereby circulating the scraper 300 to the upper side of the upper trough plate 120.

[0043] This utility model employs a scraper conveyor with a large incline to lift ore uphill. By increasing the height of the scraper 300, the lifting and transporting capacity can be increased. The increased height of the scraper 300 also prevents large pieces of gangue from rolling downhill. At the same time, the scraper 300 can be laid flat and moved horizontally within the scraper channel 150, thereby reducing the height requirement of the scraper channel 150 and lowering the height of the scraper conveyor. Compared with the traditional uphill lifting and transport method, this can greatly improve the uphill lifting efficiency, thereby increasing the downhill tunneling speed, while also improving safety.

[0044] In some embodiments, refer to Figure 6 The inner sides of the two side plates 110 are provided with pressure strips 111 that are respectively positioned on the upper side of the chain 250 on the corresponding side. By setting pressure strips 111 on the inner sides of the two side plates 110 to press down the chain 250, the scraper 300 standing on the upper trough plate 120 can be prevented from being overturned by the material, thereby improving the load-bearing capacity of the scraper 300.

[0045] In some embodiments, refer to Figure 4 The scraper 300 protrudes forward and backward on both sides near the end of the support plane 320. The hinge shaft 310 is connected to the forward protruding part of the scraper 300. This increases the distance between the hinge shaft 310 and the rear edge of the support plane 320, thereby improving the stability of the scraper 300.

[0046] In some embodiments, refer to Figure 5The two ends of the hinge shaft 310 are respectively fixed on the chains 250 of the two chain assemblies, and the scraper 300 is rotatably mounted on the hinge shaft 310, thereby realizing the flip-up of the scraper 300.

[0047] It is understood that in another embodiment, the scraper 300 can also be fixed to the hinge 310, and the two ends of the hinge 310 can be rotatably connected to the chains 250 of the two sets of chain assemblies, so that the scraper 300 can also be flipped.

[0048] In some embodiments, refer to Figures 6-8 The upper groove plate 120 has several first ear plates 121 spaced apart on both sides. The first ear plates 121 are provided with first pin holes 122. The first ear plates 121 on both sides of the upper groove plate 120 pass through the corresponding holes on the side plate 110 and are locked to the outside of the side plate 110 by the fixing pins 180 passing through the first pin holes 122.

[0049] Several second ear plates 131 are provided on both sides of the lower groove plate 130 at intervals. The second ear plates 131 are provided with second pin holes 132. The second ear plates 131 on both sides of the lower groove plate 130 pass through the through holes on the corresponding side plates 110 and are fixed to the outside of the side plates 110 by fixing pins 180 passing through the second pin holes 132.

[0050] The chute 100 in this embodiment adopts a split design, which can be extended and assembled during the downhill excavation process. During assembly, the ear plates on both sides of the upper chute plate 120 and the lower chute plate 130 are passed through the holes on the side plates 110 on both sides and fixed with fixing pins 180. The assembly is convenient and quick. The components of this split design are relatively lightweight, which reduces the difficulty of assembly.

[0051] Optionally, the first ear plate 121 and the second ear plate 131 correspond one-to-one, and each pair of the first ear plate 121 and the second ear plate 131 is fixed by the same fixing pin 180.

[0052] Of course, in another embodiment, the first ear plate 121 and the second ear plate 131 can also be fixed separately by the fixing pin 180.

[0053] In some embodiments, the side plate 110 is spliced ​​from a plurality of side plate units in the length direction, the upper trough plate 120 is spliced ​​from a plurality of upper trough plate units in the length direction, and the lower trough plate 130 is spliced ​​from a plurality of lower trough plate units in the length direction. The splicing seams of each side plate 110 are staggered from the splicing seams of each upper trough plate unit and each lower trough plate unit, so as to ensure the integrity of the chute 100 spliced ​​downhill.

[0054] To facilitate moving the side panel 110 during assembly, a handle 112 is provided on the outer side of the side panel 110.

[0055] In some embodiments, refer to Figure 3 It also includes a tail tensioning mechanism, which is used to tension the tail sprocket 240 and chain 250 of the two chain assemblies. The tail tensioning mechanism ensures the preload of the chain 250 at the tail end, ensuring that the support plane 320 can press against the surface of the tail shaft 220 when the scraper 300 passes the tail shaft 220, thereby ensuring the rotation force of the scraper 300 and ensuring that the scraper 300 can stand upright after passing the tail shaft 220. At the same time, the tail tensioning mechanism also allows the chain 250 to be fitted onto the tail sprocket 240 in a slack state, and then tensioned by the tail tensioning mechanism, which reduces the difficulty of installing the chain 250.

[0056] Optionally, the tail section of the chute 100 can extend and retract relative to the length of the chute 100. The tail tensioning mechanism is a tail tensioning cylinder 400 that drives the tail section of the chute 100 to extend and retract. In this way, the tension of the chain 250 can be adjusted by driving the tail section to extend and retract through the tail tensioning cylinder 400.

[0057] In some embodiments, refer to Figure 9 Along the length of the chute 100, horizontal barriers 500 are installed at intervals on the upper side of the chute 100 to prevent large pieces of gangue from rolling down during uphill transportation, thus avoiding injuries from flying gangue and greatly reducing safety risks.

[0058] The anti-flying rock and gangue curtain 500 includes a support frame and a baffle. The baffle is restricted from rotating diagonally downwards, but can rotate diagonally upwards. This not only allows large pieces of gangue to push open the baffle and pass through when being transported uphill, but also serves to block flying gangue.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A large-angle inclined uphill lifting scraper conveyor, characterized in that, include: A chute includes two side plates and an upper chute plate and a lower chute plate connected between the two side plates. A material conveying channel is formed on the upper side of the upper chute plate, and a scraper circulation channel is formed between the lower chute plate and the upper chute plate. The head end of the lower chute plate has a scraper retraction guide that extends obliquely away from the upper chute plate, and the tail end of the lower chute plate has a scraper unfolding guide that extends obliquely away from the upper chute plate. The traction mechanism includes a head shaft, a tail shaft, and two sets of chain assemblies symmetrically arranged on the left and right sides. The head shaft is rotatably mounted on the head section of the chute, and the tail shaft is rotatably mounted on the tail section of the chute. The upper surface of the circumferential surfaces of the head shaft and the tail shaft are tangent to the upper surface of the upper chute plate. The chain assembly includes a head sprocket, a tail sprocket, and chains with their ends meshing with the head sprocket and the tail sprocket, respectively. The head sprockets of the two sets of chain assemblies are coaxially arranged at both ends of the head shaft, and the tail sprockets of the two sets of chain assemblies are coaxially arranged at both ends of the tail shaft. The upper part of each chain is located on the left and right sides of the upper surface of the upper chute plate, and the lower part of each chain is located on the left and right sides of the upper surface of the lower chute plate. Scrapers, multiple scrapers are distributed at intervals along the chain. The scrapers are installed between the chains of two sets of chain assemblies via hinges. One end of the scraper is provided with a support plane, which is used to support the scraper on the upper groove plate when it moves to the upper side of the upper groove plate.

2. The steep-angle uphill lifting scraper conveyor according to claim 1, characterized in that, The inner sides of the two side plates are provided with pressure strips that are respectively limited to the upper side of the chain on the corresponding side.

3. The steep-angle uphill lifting scraper conveyor according to claim 1, characterized in that, The scraper protrudes forward and backward on both sides near the end of the supporting plane, and the hinge shaft is connected to the forward protruding part of the scraper.

4. The steep-angle uphill lifting scraper conveyor according to claim 1, characterized in that, The two ends of the hinge shaft are respectively fixed on the chains of the two chain assemblies, and the scraper is rotatably mounted on the hinge shaft.

5. The steep-angle uphill lifting scraper conveyor according to claim 1, characterized in that, The upper groove plate is provided with a plurality of first ear plates at intervals on both sides. The first ear plates are provided with first pin holes. The first ear plates on both sides of the upper groove plate pass through the corresponding holes on the side plates and are locked to the outside of the side plates by fixing pins passing through the first pin holes. The lower groove plate is provided with several second ear plates at intervals on both sides. The second ear plates are provided with second pin holes. The second ear plates on both sides of the lower groove plate pass through the through holes on the corresponding side plates and are fixed to the outside of the side plates by fixing pins passing through the second pin holes.

6. The steep-angle uphill lifting scraper conveyor according to claim 5, characterized in that, The first ear plate and the second ear plate are in one-to-one correspondence, and each pair of the first ear plate and the second ear plate is fixed by the same fixing pin.

7. The steep-angle uphill lifting scraper conveyor according to claim 5, characterized in that, The side plate is assembled from several side plate units along its length, the upper groove plate is assembled from several upper groove plate units along its length, and the lower groove plate is assembled from several lower groove plate units along its length. The joints of the side plates are staggered from the joints of the upper groove plate units and the joints of the lower groove plate units.

8. The steep-angle uphill lifting scraper conveyor according to claim 1, characterized in that, It also includes a tail tensioning mechanism, which is used to tension the tail sprockets and chains of the two sets of chain assemblies.

9. The steep-angle uphill lifting scraper conveyor according to claim 8, characterized in that, The tail section of the chute can extend and retract relative to the length of the chute, and the tail tensioning mechanism is a tail tensioning cylinder that drives the extension and retraction of the tail section of the chute.

10. The steep-angle uphill lifting scraper conveyor according to claim 1, characterized in that, Along the length of the chute, horizontal barriers are provided at intervals on the upper side of the chute to prevent flying rocks and debris.

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