阅读说明：本技术 一种双链牵引拉力相等的拐弯拐角运输机运输方法及装置 (Double-chain traction tension-equal corner conveyor transportation method and device ) 是由 李惠芹 付昱 范云鹏 于 2021-01-06 设计创作，主要内容包括：本发明涉及一种双链牵引拉力相等的拐弯拐角运输机运输方法及装置,属于散料(煤炭)等运输链式牵引运输机技术领域。技术方案是：外牵引链(6)、内牵引链(7)与刮板组(2)置于转弯段溜槽组(5)内,外牵引链(6)在转弯段溜槽组(5)内行走的路程通过中厚板(5-7)与内牵引链(7)在转弯段溜槽组(5)内行走的路程相等,使外牵引链(6)和内牵引链(7)在转弯段溜槽组(5)内的牵引拉力相等。本发明的积极效果：内牵引链在转弯段溜槽组凸起上所行走的路程与外牵引链在转弯段溜槽组上行走的路程相等,从而达到了内牵引链和外牵引链牵引拉力相等的目的。(The invention relates to a method and a device for transporting a corner conveyor with equal double-chain traction tension, belonging to the technical field of chain type traction conveyors for transporting bulk materials (coal) and the like. The technical scheme is as follows: the outer traction chain (6), the inner traction chain (7) and the scraper group (2) are arranged in the turning section chute group (5), the walking path of the outer traction chain (6) in the turning section chute group (5) is equal to the walking path of the inner traction chain (7) in the turning section chute group (5) through the medium plates (5-7), and the traction tension of the outer traction chain (6) and the traction tension of the inner traction chain (7) in the turning section chute group (5) are equal. The invention has the following positive effects: the distance traveled by the inner drag chain on the chute group bulges at the turning section is equal to the distance traveled by the outer drag chain on the chute group at the turning section, thereby achieving the purpose of equal drag force of the inner drag chain and the outer drag chain.)

1. A corner conveyor transportation method with equal double-chain pulling force is characterized in that an outer traction chain (6), an inner traction chain (7) and a scraper group (2) are arranged in a chute group (5) at a turning section, and the method comprises the following steps: the walking path of the outer traction chain (6) in the chute group (5) at the turning section is equal to the walking path of the inner traction chain (7) in the chute group (5) at the turning section, so that the traction tension of the outer traction chain (6) and the traction tension of the inner traction chain (7) in the chute group (5) at the turning section are equal.

2. A corner conveyor transport method with equal double-chain pull force as claimed in claim 1 wherein: at least one section of bulge is arranged in the chute group (5) at the turning section, so that the path of the inner traction chain (7) passing through the bulge is lengthened and is equal to the path of the outer traction chain (6) in the chute group (5) at the turning section.

3. A corner conveyor transport method with equal double-chain pull force according to claim 2, characterized in that: the bulges are arranged on the inner side of the upper end face of a sector-shaped medium plate (5-7) of the turning section chute group (5), the sector-shaped medium plate (5-7) divides the inside of the turning section chute group into an upper space and a lower space, the upper space is a turning section upper chain way (5-10), the turning section upper chain way (5-10) is used for inputting materials and driving the materials to move through the scraper group (2), the lower space is a turning section lower chain way (5-8), and the turning section lower chain way (5-8) is used for circulating an outer traction chain (6) and an inner traction chain (7).

4. A corner conveyor transport method with equal double-chain pull force according to claim 2, characterized in that: the bulges are respectively arranged on the inner side of the upper end face of a sector section medium plate (5-7) and the inner side of the upper end face of a sector section bottom plate (5-1) of the turning section chute group (5), the sector section medium plate (5-7) and the sector section bottom plate (5-1) are arranged in the turning section chute group (5) in an up-and-down parallel mode, a space above the sector section medium plate (5-7) is a turning section upper chain way (5-10), the turning section upper chain way (5-10) is used for inputting materials, the materials are driven to move through the scraper group (2), a space between the sector section medium plate (5-7) and the sector section bottom plate (5-1) is a turning section lower chain way (5-8), and the turning section lower chain way (5-8) is used for circulating of the outer traction chain (6) and the inner traction chain (7).

5. A corner conveyor transport method with equal double-chain pulling force according to claim 3 or 4, characterized in that: the arch is a section, is an arc-shaped arch I (5-2), the arc-shaped arch I is provided with two low points and a high point along the running direction H, the two low points are divided into a turning section discharging end (5-11) and a turning section feeding end (5-12) which are positioned on a turning section chute, the high point is positioned at the midpoint of the turning section discharging end (5-11) and the turning section feeding end (5-12), the inner traction chain (7) enters from the low point positioned on the turning section feeding end (5-12), extends from the low point positioned on the turning section discharging end (5-11) after passing through the highest point, the outer traction chain (6) enters from the turning section feeding end (5-12) to the outer side of the chain path (5-10) on the turning section, and extends from the outer side of the sector-shaped medium plate (5-7) to the rear turning section discharging end (5-11), the length from the feed end (5-12) of the turning section to the discharge end (5-11) of the turning section of the inner drag chain (7) is the same as the length from the feed end (5-12) of the turning section to the discharge end (5-11) of the turning section of the outer drag chain (6).

6. A corner conveyor transport method with equal double-chain pull force according to claim 5, characterized in that: the height of one side of the arc-shaped protrusion I (5-2) connected with the arc-shaped inner upper protection plate (5-0) is the highest, the height of the other side of the arc-shaped protrusion I (5-2) close to the arc-shaped outer upper protection plate (5-16) is the lowest, and the two lower points of the arc-shaped protrusion I (5-2) are located on the same horizontal plane.

7. A corner conveyor transport method with equal double-chain pulling force according to claim 3 or 4, characterized in that: the two bulges are respectively an arc bulge II (5-9) and an arc bulge III (5-13), the arc bulge II (5-9) and the arc bulge III (5-13) are respectively provided with two low points and a high point along the running direction H, one low point of the arc bulge II (5-9) is positioned at the turning section feeding end (5-12) of the turning section chute, one low point of the arc bulge III (5-13) is positioned at the turning section discharging end (5-11) of the turning section chute, the other low points of the arc bulge II and the arc bulge III are mutually superposed and positioned at the middle points of the turning section discharging end (5-11) and the turning section feeding end (5-12), the high points of the arc bulge II and the arc bulge III are positioned on the same horizontal plane, the internal traction chain (7) enters from the low point of the arc bulge II at the turning section feeding end (5-12), the part enters a low point where the second arc-shaped bulge and the third arc-shaped bulge are overlapped with each other through the highest point of the third arc-shaped bulge, then passes through the third arc-shaped bulge and then extends out from the low point of the third arc-shaped bulge, which is positioned at the discharge end (5-11) of the turning section, the outer drag chain (6) enters the outer side of the chain channel (5-10) on the turning section from the feed end (5-12) of the turning section, and extends out from the outer side of the sector-shaped medium plate (5-7) through the discharge end (5-11) of the rear turning section from the feed end (5-12) of the turning section, and the length from the feed end (5-12) of the turning section to the discharge end (5-11) of the turning section of the inner drag chain (7) is the same as the length from the feed end (5-12) of the turning section.

8. A corner conveyor transport method with equal double-chain pull force according to claim 7 wherein: the height of one side of the arc-shaped bulge II (5-9) connected with the arc-shaped inner upper protection plate (5-0) is highest, the height of the other side of the arc-shaped bulge II (5-9) close to the arc-shaped outer upper protection plate (5-16) is lowest, and the two lower points of the arc-shaped bulge II (5-9) are positioned on the same horizontal plane; the height of one side of the arc-shaped protrusion III (5-13) connected with the arc-shaped inner upper protection plate (5-0) is the highest, the height of the other side of the arc-shaped protrusion III (5-13) close to the arc-shaped outer upper protection plate (5-16) is the lowest, and the two lower points of the arc-shaped protrusion III (5-13) are positioned on the same horizontal plane.

9. A double-chain corner conveyor device with equal traction tension, which is characterized in that: comprises a driving device (1), a chute group, a scraper group (2), an outer traction chain (6), an inner traction chain (7) and a machine tail roller (8), wherein the machine tail roller (8) is arranged at a feeding end (10) of the chute group, the driving device (1) is arranged at a discharging end (9), the inner traction chain (7) and the outer traction chain (6) are arranged on the machine tail roller (8) and the driving device (1) in a surrounding manner, the driving device (1) drives the inner traction chain (7) and the outer traction chain (6) to circulate in the chute group, the scraper group (2) is arranged on the outer traction chain (6) and the inner traction chain (7), the scraper group (2) is composed of a plurality of groups of uniformly arranged scrapers (2-1), two ends of the scrapers are respectively fixed on the outer traction chain (6) and the inner traction chain (7), fixed points at the two ends are equidistant from the midpoint, the chute group comprises a straight-line section chute group (3) and a turning section (5), the turning section chute group (5) is arranged at a corner turning part of the conveyor, and the turning section chute group (5) is connected with the straight line section chute group (3);

the turning section chute (5) comprises an arc-shaped inner upper guard plate (5-0), a sector-shaped bottom plate (5-1), a sector-shaped medium plate (5-7) and an arc-shaped outer upper guard plate (5-16), wherein the arc-shaped inner upper guard plate (5-0) and the arc-shaped outer upper guard plate (5-16) are arc-shaped plates and are respectively arranged on the inner arc side and the outer arc side of the sector-shaped bottom plate (5-1), the sector-shaped medium plate (5-7) is horizontally arranged between the arc-shaped inner upper guard plate (5-0) and the arc-shaped outer upper guard plate (5-16), the inside of the turning section chute is divided into an upper space and a lower space, the upper space is a turning section upper chain way (5-10), the turning section upper chain way (5-10) is used for inputting materials, the materials are driven to move by the scraper group (2), and the lower space is a turning section lower chain way (5-8), the lower chain channel (5-8) of the turning section is used for circulating the outer traction chain (6) and the inner traction chain (7); the upper end surface of the sector medium plate (5-7) is provided with at least one section of arc-shaped bulge, the arc-shaped bulge is close to the arc-shaped inner upper guard plate (5-0), and the inner traction chain (7) passes through the arc-shaped bulge;

the straight-line chute group (9) is composed of a plurality of groups of straight-line chutes which are connected end to end through dumbbell pins, each straight-line chute comprises a straight-line base plate (3-7), a straight-line medium plate (3-8), a straight-line inner upper protection plate (3-9) and a straight-line outer upper protection plate (3-12), the straight-line inner upper protection plates (3-9) and the straight-line outer upper protection plates (3-12) are respectively arranged on two sides of the straight-line base plate (3-7), the straight-line medium plate (3-8) is arranged between the straight-line inner upper protection plates (3-9) and the straight-line outer upper protection plates (3-12), the interior of each straight-line chute is divided into an upper space and a lower space, the upper space is a straight-line upper chain channel (3-6) and is communicated with a turning section upper chain channel (5-10) for material, is communicated with the lower chain channel (5-8) of the turning section and is used for circulating the outer drag chain (6) and the inner drag chain (7).

10. A double-stranded equal draft corner conveyor apparatus as claimed in claim 9 wherein: the driving device (1) comprises a traction motor (1-1), a traction roller (1-2) and a traction roller bearing, a driving shaft of the traction motor (1-1) penetrates through the traction roller (1-2) and then is arranged on the traction roller bearing, and an inner traction chain channel (1-3) and an outer traction chain channel (1-4) are arranged on the traction roller (1-2).

Technical Field

The invention relates to a method and a device for transporting a corner conveyor with equal double-chain traction tension, belonging to the technical field of chain type traction conveyors for transporting bulk materials (coal) and the like.

Background

The double-chain traction conveyor has the advantages of large transportation capacity, long transportation distance, good stress of the traction chain and the scraper plate and the like compared with a single-chain traction conveyor, when the double-chain traction conveyor is used at a corner, the running distances of the two chains are unequal when the corner is turned, the distance of the outer chain is long when the corner is turned, the running distance of the inner chain is short, one traction chain is stressed, and the application range of the double-chain traction conveyor is limited. Particularly, under the coal mine, the installed capacity of the chain type traction conveyor is increased more and more, and the transport capacity and the transport distance are increased more and more. The arrangement of the traction equipment of the chain type traction conveyor is limited by the environmental space environment, the arrangement of the traction equipment of the double-chain traction turning corner conveyor device is more flexible, and the double-chain traction turning corner conveyor device has great significance for the safe and efficient production of coal mines. When the two drag chains run in a straight line under the fixation of the scraper, the drag chains are driven by the drag roller of the driving device and guided by the tail roller to run in parallel, the length of the two drag chains is equivalent to the walking distance, and the stress is equal. However, when a double chain in the double-chain traction conveyor in the prior art turns a corner, two traction chain tracks respectively travel along arc lengths of circles with different radiuses on the inner side and the outer side of the corner, the operation arc lengths of the outer chain and the inner chain are unequal, the traveling arc length of the outer chain is larger than that of the inner chain, the outer chain is formed to be independently dragged, the inner chain does not have traction force, and the advantages of the double-chain traction conveyor are lost. If the two traction chains are stressed equally, the problem that the traveling distances of corresponding points of the two traction chains are equal must be solved.

Disclosure of Invention

The invention aims to provide a method and a device for transporting a corner conveyor with equal double-chain traction tension, wherein the running distances of two chains of the conveyor with equal double-chain traction tension are equal when the corner conveyor turns, the traction forces are the same, the transportation of bulk materials such as coal and ore and the like in a large-capacity long-distance environment is met, and the problems in the background technology are solved.

The technical scheme of the invention is as follows:

a corner conveyor transportation method with equal double-chain traction force is characterized in that an outer traction chain, an inner traction chain and a scraper plate set are arranged in a chute set at a turning section, the walking path of the outer traction chain in the chute set at the turning section is equal to the walking path of the inner traction chain in the chute set at the turning section, and the traction force of the outer traction chain and the traction force of the inner traction chain in the chute set at the turning section are equal.

At least one section of bulge is arranged on the chute group at the turning section, so that the path of the inner traction chain passing through the bulge is lengthened and is equal to the path of the outer traction chain in the chute group at the turning section.

The bulge is arranged on the inner side of the upper end face of the sector medium plate of the turning section chute group, the sector medium plate divides the inside of the turning section chute into an upper space and a lower space, the upper space is a turning section upper chain channel, the turning section upper chain channel is used for inputting materials, the materials are driven to move through the scraper group, the lower space is a turning section lower chain channel, and the turning section lower chain channel is used for circulating an outer traction chain and an inner traction chain.

The protrusions are respectively arranged on the inner side of the upper end face of a sector medium plate and the inner side of the upper end face of a sector bottom plate of the turning section chute group, the sector medium plate and the sector bottom plate are arranged in the turning section chute group in an up-down parallel mode, the space above the sector medium plate is a turning section upper chain channel, the turning section upper chain channel is used for inputting materials and driving the materials to move through the scraper group, the space between the sector medium plate and the sector bottom plate is a turning section lower chain channel, and the turning section lower chain channel is used for circulation of an outer traction chain and an inner traction chain.

The projection can be in multiple sections, generally, one to two sections of projections can meet engineering requirements, and the following takes a section of arc-shaped projection and two sections of arc-shaped projections as examples, and the specific technical scheme is as follows:

the arch is one section, and is the protruding one of arc, and the protruding one of arc has two low spots and a high point along traffic direction H, and two low spots divide into the turn section discharge end and the turn section feed end that are located the turn section chute, and the high point is located the mid point of turn section discharge end and turn section feed end, and interior drag chain gets into from the low point that is located turn section feed end, stretches out from the low point that is located the turn section discharge end after passing through the peak, and outer drag chain enters into the outside of turn section upper link way from turn section feed end, stretches out from turn section discharge end after passing through the sector shape cut deal outside, and the length of interior drag chain from turn section feed end to turn section discharge end is the same with the length of outer drag chain from turn section feed end to turn section discharge end.

The height of one side of the arc-shaped bulge I, which is connected with the arc-shaped inner upper protection plate, is highest, the height of the other side of the arc-shaped bulge I, which is close to the arc-shaped outer upper protection plate, is lowest, and the two low points of the arc-shaped bulge I and the arc-shaped bulge I are positioned on the same horizontal plane.

The two sections of the bulges are respectively an arc bulge II and an arc bulge III, the arc bulge II and the arc bulge III are both provided with two low points and a high point along the running direction H, one low point of the arc bulge II is positioned at the feeding end of the turning section chute, one low point of the arc bulge III is positioned at the discharging end of the turning section chute, the other low points of the arc bulge II and the arc bulge III are mutually superposed and positioned at the middle point of the discharging end of the turning section and the feeding end of the turning section, the high points of the arc bulge II and the arc bulge III are positioned on the same horizontal plane, the inner traction chain enters from the low point of the arc bulge II at the feeding end of the turning section, enters from the low point of the arc bulge II and the arc bulge III mutually superposed through the two peaks of the arc bulge II, then extends out from the low point of the arc bulge III at the discharging end of the turning section after passing through the peaks of the arc bulge III, and the outer traction chain enters from the feeding end of the turning section, the length from the feeding end of the inner drag chain to the discharging end of the turning section is the same as that from the feeding end of the outer drag chain to the discharging end of the turning section.

The height of one side of the arc-shaped bulge II, which is connected with the arc-shaped inner upper protection plate, is the highest, the height of the other side of the arc-shaped bulge II, which is close to the arc-shaped outer upper protection plate, is the lowest, and the two lower points of the arc-shaped bulge II are positioned on the same horizontal; the height of one side of the arc-shaped protrusion III, which is connected with the arc-shaped inner upper protection plate, is the highest, the height of the other side of the arc-shaped protrusion III, which is close to the arc-shaped outer upper protection plate, is the lowest, and the two low points of the arc-shaped protrusion III are positioned on the same horizontal.

A corner conveyor device with equal double-chain traction tension comprises a driving device, a chute group, a scraper group, an outer traction chain, an inner traction chain and a tail roller, wherein the feed end of the chute group is provided with the tail roller, the discharge end of the chute group is provided with the driving device, the inner traction chain and the outer traction chain are arranged on the tail roller and the driving device in a surrounding manner, the driving device drives the inner traction chain and the outer traction chain to circulate in the chute group, the scraper group is arranged on the outer traction chain and the inner traction chain, the scraper group consists of a plurality of groups of uniformly arranged scrapers, two ends of each scraper are respectively fixed on the outer traction chain and the inner traction chain, the fixed points at the two ends are equal in distance from the middle point of the scraper, the chute group comprises a straight-line section chute group and a turning chute group, the turning section chute group is arranged at the corner of the conveyor, and two ends of the turning section chute group are respectively connected with the corresponding straight-line section chute group, forming an L-shaped structure;

the inner side protection plate and the outer side protection plate are arc-shaped plates and are respectively arranged on the inner arc side and the outer arc side of the sector-shaped bottom plate, the sector-shaped medium plate is horizontally arranged between the inner side protection plate and the outer side protection plate, the inner part of the chute at the turning section is divided into an upper space and a lower space, the upper space is an upper chain channel at the turning section, the upper chain channel at the turning section is used for inputting materials and driving the materials to move through the scraper group, the lower space is a lower chain channel at the turning section, and the lower chain channel at the turning section is used for circulating an outer traction chain and an inner traction chain; the upper end surface of the sector medium plate is provided with at least one section of arc-shaped bulge, the arc-shaped bulge is close to the arc-shaped inner upper guard plate, and the inner traction chain passes through the arc-shaped bulge;

the straight-line chute group is composed of a plurality of straight-line chutes, the heads and the tails of which are connected through dumbbell pins, each straight-line chute comprises a straight-line bottom plate, a straight-line medium plate, a straight-line inner upper protection plate and a straight-line outer upper protection plate, the straight-line inner upper protection plate and the straight-line outer upper protection plate are respectively arranged on two sides of the straight-line bottom plate, the straight-line medium plates are arranged between the straight-line inner upper protection plates and the straight-line outer upper protection plates, the interior of each straight-line chute is divided into an upper space and a lower space, the upper space is a straight-line upper chain channel and communicated with a turning section upper chain channel and used for inputting materials, and the lower space is a straight-line.

The driving device comprises a traction motor, a traction roller and a traction roller bearing, wherein a driving shaft of the traction motor penetrates through the traction roller and then is arranged on the traction roller bearing, and an inner traction chain channel and an outer traction chain channel are arranged on the traction roller.

The structure of the sector bottom plate is the same as that of the sector medium plate, and at least one section of bulge is arranged on the inner side of the upper end face and has the same structure as that of the bulge on the sector medium plate.

The total length of the outer drag chain and the total length of the inner drag chain are consistent and are respectively formed by connecting two double-ring chains end to end, the drag chain is driven by a drag roller to drag and drive a scraper to push materials to move, and the materials (coal, ore and the like) are transported to a machine head from a machine tail.

The invention has the following positive effects: the inner traction chain runs through the bulges in the chute group at the turning section, and the traveling distance of the inner traction chain in the bulges of the chute group at the turning section is equal to the traveling distance of the outer traction chain in the chute group at the turning section, so that the purpose of equalizing the traction tension of the inner traction chain and the traction tension of the outer traction chain is achieved.

Drawings

FIG. 1 is a schematic top view of a semiconductor device according to an embodiment of the present invention;

FIG. 2 is a schematic sectional view of a linear chute group according to an embodiment of the present invention;

FIG. 3 is a schematic sectional view of a chute group at a turning section according to an embodiment of the invention;

FIG. 4 is a schematic structural diagram of a driving device according to an embodiment of the present invention;

FIG. 5 is a schematic top view of a squeegee set according to an embodiment of the invention;

FIG. 6 is a schematic top view of a linear chute according to an embodiment of the present invention;

FIG. 7 is a schematic sectional view of the structure of FIG. 6A-A;

FIG. 8 is a schematic view of the cross-sectional view of the structure of FIG. 6B-B;

FIG. 9 is a schematic top view of a trough assembly of a turning section according to an embodiment of the present invention;

FIG. 10 is a schematic view of the cross-sectional structure of FIG. 9C-C;

FIG. 11 is a top plan view of a portion of a trough at a turn section in accordance with an embodiment of the present invention;

FIG. 12 is a schematic cross-sectional view taken along the direction of line D-D in FIG. 11;

FIG. 13 is a schematic structural view in section taken along the direction of FIG. 11F-F;

FIG. 14 is a schematic illustration of a chute feed end configuration at a turn section in accordance with an embodiment of the present invention;

FIG. 15 is a cross-sectional view of an arcuate projection taken from the low point to the high point of the feed end in accordance with the practice of the present invention;

FIG. 16 is a cross-sectional view of an arcuate projection taken from a high point to a low point at the discharge end in accordance with the practice of the present invention;

FIG. 17 is a schematic top view of a second embodiment of the present invention;

FIG. 18 is a schematic sectional view of the inner drag chain of FIG. 17 taken along the direction I-I;

FIG. 19 is a schematic cross-sectional view of the outer drag chain J-J of FIG. 17;

in the figure: the device comprises a driving device 1, a traction motor 1-1, a traction roller 1-2, an inner traction chain way 1-3 and an outer traction chain way 1-4; the scraping plate group 2 and the scraping plates 2-1; the device comprises a straight-line section chute group 3, a straight-line section lower part outer traction chain 3-1, a straight-line section lower scraper 3-2, a straight-line section lower chain channel 3-3, a straight-line section upper part outer traction chain 3-4, a straight-line section upper scraper 3-5, a straight-line section upper chain channel 3-6, a straight-line section bottom plate 3-7, a straight-line section medium plate 3-8, a straight-line section inner upper side protection plate 3-9, a straight-line section upper part inner traction chain 3-10, a straight-line section lower part inner traction chain 3-11 and a straight; the device comprises a turning section chute group 5, an arc-shaped inner upper protection plate 5-0, a sector section bottom plate 5-1, an arc-shaped bulge I5-2, a turning section upper outer traction chain 5-3, a turning section upper inner traction chain 5-4, a turning section upper scraper 5-5, a turning section lower scraper 5-6, a sector section medium plate 5-7, a turning section lower chain way 5-8, an arc-shaped bulge II 5-9, a turning section upper chain way 5-10, a turning section discharge end 5-11, a turning section feed end 5-12, an arc-shaped bulge III 5-13, a turning section lower outer traction chain 5-14, a turning section lower inner traction chain 5-15, an arc-shaped outer upper protection plate 5-16, a turning section chute I5A and a turning section chute II 5B; an outer drag chain 6, an inner drag chain 7, a tail drum 8, a discharge end 9 and a feed end 10.

Detailed Description

The invention is further described with reference to the following figures and examples:

a corner conveyor transportation method with equal double-chain traction force is characterized in that an outer traction chain 6, an inner traction chain 7 and a scraper group 2 are arranged in a turning section chute group 5, the walking path of the outer traction chain 6 in the turning section chute group 5 is equal to the walking path of the inner traction chain 7 in the turning section chute group 5, and the traction force of the outer traction chain 6 and the traction force of the inner traction chain 7 in the turning section chute group 5 are equal.

At least one section of bulge is arranged on the chute group 5 at the turning section, so that the path of the inner traction chain 7 passing through the bulge is lengthened and is equal to the path of the outer traction chain 6 in the chute group 5 at the turning section.

The bulges are arranged on the inner side of the upper end face of a sector-shaped medium plate 5-7 of the chute group 5 of the turning section, the sector-shaped medium plate 5-7 divides the inside of the chute of the turning section into an upper space and a lower space, the upper space is a turning section upper chain way 5-10, the turning section upper chain way 5-10 is used for inputting materials, the materials are driven to move by the scraper group 2, the lower space is a turning section lower chain way 5-8, and the turning section lower chain way 5-8 is used for circulating an outer traction chain 6 and an inner traction chain 7.

The bulges are respectively arranged on the inner side of the upper end face of a sector-shaped medium plate 5-7 and the inner side of the upper end face of a sector-shaped bottom plate 5-1 of the turning section chute group 5, the sector-shaped medium plate 5-7 and the sector-shaped bottom plate 5-1 are arranged in the turning section chute group 5 in an up-and-down parallel mode, the space above the sector-shaped medium plate 5-7 is a turning section upper chain way 5-10, the turning section upper chain way 5-10 is used for inputting materials and driving the materials to move through the scraper group 2, the space between the sector-shaped medium plate 5-7 and the sector-shaped bottom plate 5-1 is a turning section lower chain way 5-8, and the turning section lower chain way 5-8 is used for circulating an external traction chain 6 and an internal traction chain 7.

The bulge can be in multiple sections, the inner drag chain passes through the bulge, the walking track of the inner drag chain can be raised for multiple times, and the once height-changing mode or the twice height-changing mode is generally adopted to meet the engineering requirement, and the method comprises the following steps:

with reference to fig. 1 to 17, a first variable mode of the first embodiment of the present invention is: the arc-shaped bulge I is a section and is an arc-shaped bulge I5-2, the arc-shaped bulge I is provided with two low points and a high point along the running direction H, the two low points are divided into a turning section discharging end 5-11 and a turning section feeding end 5-12 which are positioned in a turning section chute, the high point is positioned at the midpoint of the turning section discharging end 5-11 and the turning section feeding end 5-12, the inner drag chain 7 enters from the low point positioned at the turning section feeding end 5-12 and extends out from the low point positioned at the turning section discharging end 5-11 after passing through the highest point, the outer drag chain 6 enters from the turning section feeding end 5-12 to the outer side of the upper chain channel 5-10 of the turning section and extends out from the outer side of the sector-shaped medium plate 5-7 through the rear self-turning section discharging end 5-11, the length of the inner drag chain 7 from the turning section feeding end 5-12 to the turning section discharging end 5-11 is equal to the length of the outer drag chain 6 from the turning section discharging end 5-12 to the feeding end 5-12 5-11 are the same length.

The height of the first arc-shaped bulge is gradually reduced along the direction vertical to the running direction H, the height of one side, connected with the first arc-shaped inner upper protection plate 5-0, of the first arc-shaped bulge 5-2 is the highest, the height of the other side, close to the second arc-shaped outer upper protection plate 5-16, of the first arc-shaped bulge 5-2 is the lowest, and the two lower points of the first arc-shaped bulge 5-2 and the two lower points of the first arc-shaped bulge 5-.

The working principle of the first-time height changing mode of the first embodiment is as follows:

the outer drag chain and the inner drag chain run in parallel in the straight line chute under the fixation of the scraper, and run along the outer arc track of the chute group at the turning section when entering the turning corner, and the running height of the outer drag chain in the chute group at the turning section is the same as that of the outer drag chain in the straight line chute group at the moment. In order to solve the problem that the traveling distance of an inner traction chain at a chute group of a turning section is shorter than that of an outer traction chain at the chute group of the turning section, the height of the inner side of a sector-shaped medium plate of the chute group of the turning section is changed, the upper end of the sector-shaped medium plate is in an up-down slope shape (namely, an arc protrusion I) and used for changing the track of the inner traction chain and increasing the traveling length of the inner traction chain, the traveling distances of the outer traction chain and the inner traction chain are the same when the turning angle turns, the purposes that the traction tension of the outer traction chain and the traction tension of the inner traction chain are equal are achieved, and the height of the outer side of.

With reference to fig. 18-20, the second two-time variable mode of the embodiment of the present invention is: the two bulges are respectively an arc bulge II 5-9 and an arc bulge III 5-13, the arc bulge II 5-9 and the arc bulge III 5-13 are provided with two low points and a high point along the running direction H, one low point of the arc bulge II 5-9 is positioned at the feeding end 5-12 of the turning section chute, one low point of the arc bulge III 5-13 is positioned at the discharging end 5-11 of the turning section chute, the other low point of the arc bulge II and the arc bulge III are mutually superposed and are positioned at the middle point of the discharging end 5-11 of the turning section and the feeding end 5-12 of the turning section, the high points of the arc bulge II and the arc bulge III are positioned on the same horizontal plane, the internal traction chain 7 enters from the low point of the arc bulge II at the feeding end 5-12 of the turning section and enters the low point of the arc bulge II and the arc bulge III mutually superposed through the arc bulge II, and then the outer drag chain 6 passes through the highest point of the third arc-shaped bulge and then extends out from the lower point of the third arc-shaped bulge, which is positioned at the discharge end 5-11 of the turning section, of the third arc-shaped bulge, the outer drag chain 5-12 enters the outer side of the upper chain channel 5-10 of the turning section from the feeding end 5-12 of the turning section, and extends out from the outer side of the sector-shaped medium plate 5-7 through the discharge end 5-11 of the rear turning section from the feeding end 5-12 of the turning section, and the length of the inner drag chain 7 from the feeding end 5-12 of the turning section to the discharge end 5-11 of the turning section is the same as that of the outer drag chain 6.

The height of the second arc-shaped bulge is gradually reduced along the direction vertical to the running direction H, the height of one side, connected with the second arc-shaped inner upper protection plate 5-0, of the second arc-shaped bulge 5-9 is the highest, the height of the other side, close to the second arc-shaped outer upper protection plate 5-16, of the second arc-shaped bulge 5-9 is the lowest, and the two lower points of the second arc-shaped bulge 5-9 are located on the same horizontal plane; the height of one side of the arc-shaped bulge III 5-13, which is connected with the arc-shaped inner upper protection plate 5-0, is the highest, the height of the other side of the arc-shaped bulge III 5-13, which is close to the arc-shaped outer upper protection plate 5-16, is the lowest, and the two low points of the arc-shaped bulge III 5-13 are positioned on the same horizontal plane.

The working principle of the secondary height changing mode is as follows: the outer drag chain and the inner drag chain run in parallel in the straight line chute under the fixation of the scraper, and run along the outer arc track of the chute group at the turning section when entering the turning corner, and the running height of the outer drag chain in the chute group at the turning section is the same as that of the outer drag chain in the straight line chute group at the moment. In order to solve the problem that the walking distance of an inner traction chain at a chute group of a turning section is shorter than that of an outer traction chain at the chute group of the turning section, the height of the inner side of a segmental medium plate of the chute group of the turning section is changed, the height of the segmental medium plate is increased twice, the upper end of the segmental medium plate is in an up-down slope shape twice (namely an arc-shaped bulge II and an arc-shaped bulge III), the inner traction chain track is changed, the walking length of an inner traction chain is increased, the walking distances of the outer traction chain and the inner traction chain when the turning angle turns are the same, the purpose that the traction tension of the outer traction chain is equal to that of the inner traction chain is achieved, and the height of the outer side of the.

A double-chain corner conveyor device with equal traction tension comprises a driving device 1, a chute group, a scraper group 2, an outer traction chain 6, an inner traction chain 7 and a tail roller 8, wherein a feed end 10 of the chute group is provided with the tail roller 8, a discharge end 9 is provided with the driving device 1, the inner traction chain 7 and the outer traction chain 6 are arranged on the tail roller 8 and the driving device 1 in a surrounding manner, the driving device 1 drives the inner traction chain 7 and the outer traction chain 6 to circulate in the chute group, the outer traction chain 6 and the inner traction chain 7 are provided with the scraper group 2, the scraper group 2 consists of a plurality of groups of uniformly arranged scrapers 2-1, two ends of each scraper are respectively fixed on the outer traction chain 6 and the inner traction chain 7, the distances from fixed points at the two ends to the midpoint of the scrapers are equal, the chute group comprises a straight-line section chute group 3 and a turning section chute group 5, the turning section chute group 5 is formed by connecting a first turning section chute 5A and a second turning section B end to end through dumbbell pins, the two ends of the turning section chute group 5 are respectively connected with the corresponding straight section chute group 3 to form an L-shaped structure.

The first turning section chute 5A and the second turning section chute 5B are identical in structure and respectively comprise an arc-shaped inner upper protection plate 5-0, a sector-shaped bottom plate 5-1, a sector-shaped medium plate 5-7 and an arc-shaped outer upper protection plate 5-16, the arc-shaped inner upper protection plate 5-0 and the arc-shaped outer upper protection plate 5-16 are arc-shaped plates and are respectively arranged on the inner arc side and the outer arc side of the sector-shaped bottom plate 5-1, the sector-shaped medium plate 5-7 is horizontally arranged between the arc-shaped inner upper protection plate 5-0 and the arc-shaped outer upper protection plate 5-16, the inner part of the turning section chute is divided into an upper space and a lower space, the upper space is a turning section upper chain path 5-10, and the turning section upper chain path 5-10 is used for inputting materials, the scraper group 2 drives the materials to move, the lower space is a turning section lower chain channel 5-8, and the turning section lower chain channel 5-8 is used for circulating an outer drag chain 6 and an inner drag chain 7; the upper end surface of the sector medium plate 5-7 is provided with at least one section of arc-shaped bulge, the arc-shaped bulge is close to the arc-shaped inner upper protection plate 5-0, and the inner drag chain 7 passes through the arc-shaped bulge.

The straight-line chute group 3 consists of a plurality of straight-line chutes connected end to end through dumbbell pins, each straight-line chute comprises a straight-line bottom plate 3-7, a straight-line middle thick plate 3-8, a straight-line inner upper protection plate 3-9 and a straight-line outer upper protection plate 3-12, the straight-line inner upper protection plates 3-9 and the straight-line outer upper protection plates 3-12 are respectively arranged on two sides of the straight-line bottom plate 3-7, the straight-line middle thick plates 3-8 are arranged between the straight-line inner upper protection plates 3-9 and the straight-line outer upper protection plates 3-12, the interior of each straight-line chute is divided into an upper space and a lower space, the upper space is a straight-line upper chain path 3-6 and is communicated with a turning section upper chain path 5-10 and is used for inputting materials, the lower space is a straight-line, for circulation of the outer drag chain 6 and the inner drag chain 7.

The distance of the walking path of the outer drag chain 6 on the sector-shaped medium plate 5-7 is equal to the distance of the walking path of the inner drag chain 7 on the arc-shaped bulge of the sector-shaped medium plate 5-7.

The scraper is obliquely arranged on the arc-shaped bulge, and two ends of the scraper are respectively close to the arc-shaped inner upper protection plate 5-0 and the arc-shaped outer upper protection plate 5-16.

The driving device 1 comprises a traction motor 1-1, a traction roller 1-2 and a traction roller bearing, a driving shaft of the traction motor 1-1 penetrates through the traction roller 1-2 and then is arranged on the traction roller bearing, and an inner traction chain channel 1-3 and an outer traction chain channel 1-4 are arranged on the traction roller 1-2.

The outer drag chain and the inner drag chain are formed by connecting end to end of a double-ring chain.

The protrusions may be arc-shaped, bent, etc.

The structure of the sector bottom plate is the same as that of the sector medium plate, and at least one section of bulge is arranged on the inner side of the upper end face and has the same structure as that of the bulge on the sector medium plate.