Deviation correction type belt conveyor belt storage bin and telescopic belt conveyor

By designing a belt storage bin for a belt conveyor with a correction mechanism, and using correction rollers and spiral protrusions to correct belt deviation, the problem of belt deviation in the storage bin was solved, thereby improving the service life of the belt and the operational stability of the equipment.

CN121894352APending Publication Date: 2026-04-21NINGXIA TIANDI NORTHWEST COAL MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NINGXIA TIANDI NORTHWEST COAL MACHINERY
Filing Date
2026-03-17
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In existing technologies, the belt in the belt storage bin of a belt conveyor is prone to deviation, leading to wear and tear. Existing deviation correction methods cannot effectively adjust it in a timely manner, affecting the operational stability of the equipment.

Method used

Design a belt storage bin for a belt conveyor with a correction mechanism, including a correction trolley and a tensioning trolley. By actively and passively rotating the correction rollers, the belt is forced back to its normal operating position, and the spiral protrusions and bumps are used to increase resistance and correct deviation.

Benefits of technology

It enables timely correction of belt misalignment, reduces the probability of wear, and improves belt life and equipment operation stability.

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Abstract

The invention discloses a bias belt conveyor belt storage bin and a telescopic belt conveyor. The bias belt conveyor belt storage bin comprises a belt storage steering device, a belt storage middle frame and a tensioning device. The belt storage middle frame is provided with a deviation correction type belt towing trolley moving along the belt storage middle frame, and a tensioning trolley connected with the tensioning device is installed on the side, facing the tensioning device, of the belt storage frame; the deviation rectifying type towing trolley comprises a left frame, a right frame, a deviation rectifying roller a, a deviation rectifying roller b, a deviation rectifying roller c, a deviation rectifying roller d and a middle deviation rectifying roller, the deviation rectifying roller c is located over the deviation rectifying roller d and can drive the deviation rectifying roller d to rotate synchronously after actively rotating, the deviation rectifying roller a and the deviation rectifying roller b are sequentially and longitudinally installed between the deviation rectifying roller c and the deviation rectifying roller d, the deviation rectifying roller a can drive the deviation rectifying roller b to rotate synchronously after actively rotating, and the middle deviation rectifying roller is located between the deviation rectifying roller a and the deviation rectifying roller b. According to the deviation correcting device, deviation correcting can be conducted on the deviated rubber belt in time, scratching and abrasion of the rubber belt after deviation are reduced, and normal operation of a conveyor is guaranteed.
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Description

Technical Field

[0001] This invention relates to the field of belt conveyor technology, and more particularly to a belt storage bin for a belt conveyor with a correction mechanism and a telescopic belt conveyor. Background Technology

[0002] A telescopic belt conveyor is a conveying device that incorporates a belt storage bin and a telescopic mechanism on a standard belt conveyor. It can freely extend and retract along its length, allowing users to control the conveying length as needed. As a core piece of equipment for coal transport, any malfunction can cause production stoppages within its transport area, significantly impacting mine operations. Therefore, ensuring the normal operation of belt conveyors is a key aspect of mine safety management.

[0003] The belt storage bin is a core component of a telescopic belt conveyor, primarily used for storing conveyor belts. Typically, the belt storage bin of a telescopic belt conveyor is equipped with multiple layers of belt. These belts are wound around multiple rollers multiple times over a certain distance, forming a multi-layered belt movement pattern with opposing belts within a certain vertical distance. However, during actual operation of the belt conveyor, belt misalignment may occur within the storage bin. This misalignment leads to collisions, scraping, and wear against the side frames, reducing the belt's safety factor, lifespan, and even causing tearing and breakage, ultimately resulting in production accidents such as belt tearing.

[0004] In the existing technology, the common way to correct the problem of belt misalignment in the storage bin is to install adjusting bolts at both ends of the rollers on the storage bin bogie and the traveling trolley. According to the belt misalignment on the rollers, the front and rear positions of the two ends of the rollers are manually adjusted to make the belt in an unbalanced state on the rollers and then reverse the adjustment to solve the misalignment problem.

[0005] However, although existing technologies can correct the belt deviation over a certain length, the belt's deviation on the roller is unpredictable, and the adjusting bolts at both ends of the roller cannot be adjusted in either direction at any time, thus failing to effectively solve the problem of belt deviation on the roller in a timely manner. Summary of the Invention

[0006] In order to solve the technical problems existing in the above-mentioned technologies, it is necessary to provide a belt storage bin for a belt conveyor with a correction mechanism.

[0007] A belt storage bin for a belt-correcting conveyor includes a belt-directing device, a belt-intermediate frame, and a tensioning device connected in sequence.

[0008] The intermediate storage rack is equipped with a correction trolley that moves along the intermediate storage rack, and a tensioning trolley that is connected to the tensioning device and moves along the intermediate storage rack is installed on the side of the storage rack facing the tensioning device.

[0009] The corrective trolley includes a left frame, a right frame, and corrective rollers a, b, c, and d rotatably mounted between the left and right frames, and an intermediate corrective roller. Corrective roller c is located directly above corrective roller d, and its active rotation can drive corrective roller d to rotate synchronously. Corrective rollers a and b are longitudinally mounted between corrective roller c and corrective roller d, and their active rotation can drive corrective roller b to rotate synchronously. The intermediate corrective roller is located between corrective roller a and corrective roller b.

[0010] Preferably, the correcting rollers a, b, c, and d have the same structure; the correcting roller a includes a left roller body, a right roller body, and a support roller shaft, with a bearing seat installed at the middle position of the support roller shaft. The left and right roller bodies are symmetrically mounted on the support roller shaft along the bearing seat. Correcting parts are rotatably installed at the left end of the left roller body and the right end of the right roller body. When the correcting part on the correcting roller a rotates actively, it can drive the correcting part on the correcting roller b to rotate synchronously. When the correcting part on the correcting roller c rotates actively, it can drive the correcting part on the correcting roller d to rotate synchronously.

[0011] Preferably, the correction section includes a support roller and spiral protrusions distributed in a spiral shape along the outer wall of the support roller.

[0012] Preferably, the spiral protrusions on the left and right rollers have opposite spiral directions.

[0013] Preferably, the intermediate correction roller includes a support shaft and a support roller body symmetrically rotatably mounted on the support shaft; the outer walls of the two ends of the support roller body are spirally distributed with spiral protrusions in opposite directions.

[0014] Preferably, wheel assemblies that move along the intermediate frame of the storage belt are provided on the left and right vehicle frames.

[0015] Preferably, passive correction components are evenly distributed at equal intervals along the top and bottom of the intermediate storage rack.

[0016] Preferably, the passive correction assembly includes a bracket, a left passive roller, and a right passive roller; the bracket is evenly distributed at equal intervals along the top and bottom of the intermediate frame of the belt storage, and the left and right passive rollers are mounted on the bracket in a V-shape, with spiral circular protrusions of opposite directions spirally distributed on the outer wall of the left end of the left passive roller and the outer wall of the right end of the right passive roller.

[0017] A telescopic belt conveyor includes the aforementioned belt storage bin for the belt conveyor with corrective properties.

[0018] Compared with the prior art, the belt storage bin and telescopic belt conveyor provided by the present invention include a belt storage and steering device, a belt storage intermediate frame, and a tensioning device connected in sequence; a belt correction trolley that moves along the belt storage intermediate frame is installed on the belt storage intermediate frame, and a tensioning trolley that is connected to the tensioning device and moves along the belt storage intermediate frame is installed on the side of the belt storage frame facing the tensioning device; the belt correction trolley includes a left frame, a right frame, and belt correction rollers a, b, c, d, and an intermediate belt correction roller rotatably installed between the left and right frames; belt correction roller c is located directly above belt correction roller d, and belt correction roller c can drive belt correction roller d to rotate synchronously after it rotates actively; belt correction rollers a and b are installed longitudinally between belt correction roller c and belt correction roller d in sequence, and belt correction roller a can drive belt correction roller b to rotate synchronously after it rotates actively; the intermediate belt correction roller is located between belt correction roller a and belt correction roller b. When the conveyor belt deviates significantly, the active rotation of correction roller a drives correction roller b to rotate synchronously, and the active rotation of correction roller c drives correction roller d to rotate synchronously. The active rotation of correction rollers a, b, c, and d forces the deviated conveyor belt back to its normal operating position. This invention can promptly correct belt deviations, reducing the probability of belt abrasion and wear, increasing belt life, and ensuring the normal operation of the conveyor. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Figure 2 For the present invention Figure 1 A top-view structural diagram.

[0022] Figure 3 For the present invention Figure 1 A schematic diagram of the cross-sectional structure of CC.

[0023] Figure 4 This is a schematic diagram of the structure of the correction-type towing trolley of the present invention.

[0024] Figure 5 For the present invention Figure 3 A schematic diagram of the B-direction structure.

[0025] Figure 6 This is a schematic diagram of the structure of the correction roller a of the present invention.

[0026] Figure 7 This is a schematic diagram of the structure of the intermediate correction roller of the present invention.

[0027] Figure 8 For the present invention Figure 1 A schematic diagram of the structure after AA is rotated.

[0028] Figure 9 For the present invention Figure 2 A magnified view of a section at point D.

[0029] Figure 10 This is a schematic diagram of the tape winding in the tape storage compartment of the present invention.

[0030] In the diagram: 01. Storage belt steering device; 02. Storage belt intermediate frame; 03. Tensioning device; 04. Correcting trolley; 41. Left frame; 42. Right frame; 43. Correcting roller a; 43. Left roller body; 432. Right roller body; 433. Idler shaft; 434. Bearing seat; 435. Correcting part; 4351. Support roller; 4352. Spiral protrusion; 44. Correcting roller b; 45. Correcting roller c; 46. Correcting roller d; 47. Intermediate correcting roller; 471. Support shaft; 472. Support roller body; 473. Spiral protrusion; 48. Wheel assembly; 49. Drive motor; 05. Tensioning trolley; 06. Passive correction assembly; 61. Bracket; 62. Left passive roller; 63. Right passive roller; 64. Spiral round protrusion; 07. Belt. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] In the description of this invention, it should be understood that the terms "upper", "middle", "outer", "inner", "lower", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0033] Please refer to Figures 1 to 10 In one embodiment, the present invention provides a belt storage bin for a belt conveyor with a correction mechanism, comprising a belt storage and steering device 01, a belt storage intermediate frame 02, and a tensioning device 03 connected in sequence.

[0034] Among them, a correction-type trolley 04 that moves along the intermediate rack 02 is installed on the intermediate rack 02, and a tensioning trolley 05 that is connected to the tensioning device 03 and moves along the intermediate rack 02 is installed on the side of the rack facing the tensioning device 03.

[0035] The corrective trolley 04 includes a left frame 41, a right frame 42, and corrective rollers a43, b44, c45, d46, and a middle corrective roller 47 rotatably mounted between the left frame 41 and the right frame 42. Corrective roller c45 is located directly above corrective roller d46, and its active rotation can drive corrective roller d46 to rotate synchronously. Corrective rollers a43 and b44 are longitudinally mounted between corrective roller c45 and corrective roller d46, and their active rotation can drive corrective roller b44 to rotate synchronously. The middle corrective roller 47 is located between corrective rollers a43 and b44.

[0036] When the conveyor belt deviates significantly, the active rotation of the correction roller A43 drives the synchronous rotation of the correction roller B44, and the active rotation of the correction roller C45 drives the synchronous rotation of the correction roller D46. The active rotation of these rollers forces the deviated conveyor belt back to its normal operating position. This allows for timely correction of the deviated belt, reducing the probability of abrasion and wear, increasing belt life, and ensuring the normal operation of the conveyor.

[0037] In one embodiment, the corrective rollers a43, b44, c45, and d46 have the same structure. The corrective roller a43 includes a left roller body 431, a right roller body 432, and a roller shaft 433. A bearing seat 434 is installed in the middle of the roller shaft 433. The left roller body 431 and the right roller body 432 are symmetrically mounted on the roller shaft 433 along the bearing seat 434. Corrective parts 435 are rotatably installed at the left end of the left roller body 431 and the right end of the right roller body 432. When the corrective part 435 on the corrective roller a43 rotates actively, it can drive the corrective part 435 on the corrective roller b44 to rotate synchronously. When the corrective part 435 on the corrective roller c45 rotates actively, it can drive the corrective part 435 on the corrective roller d46 to rotate synchronously.

[0038] Of course, the active rotation of the correction rollers a43 and c45 can be achieved by installing a drive motor 49, while the correction roller b44 can transmit power to the correction roller a43 via a mechanical transmission of sprockets and chains. Similarly, the correction roller c45 and d46 can also use the same transmission method. When the conveyor belt deviates significantly, the drive motor 49 can be controlled to drive the correction roller 435 to rotate at high speed. At this time, the correction roller 435 will generate a large speed difference with the left roller 431 and the right roller 432. Due to the speed difference, the movement speed of the edge of the conveyor belt will be greater than that of the middle of the conveyor belt, forcibly forcing the conveyor belt back to the left roller 431 and the right roller 432. The active rotation of the correction roller 435 achieves the conveyor belt correction effect, and the greater the speed difference, the more obvious the effect.

[0039] Specifically, the correction section 435 includes a support roller 4351 and spiral protrusions 4352 distributed spirally along the outer wall of the support roller 4351. The spiral protrusions 4352 on the left roller 431 and the right roller 432 have opposite spiral directions. When the conveyor belt deviates to the spiral protrusion 4352, a depression is formed at the spiral protrusion 4352, thereby increasing the resistance to deviation.

[0040] Specifically, the intermediate correction roller 47 includes a support shaft 471 and a support roller body 472 symmetrically rotatably mounted on the support shaft 471. The outer walls of the two ends of the support roller body 472 are spirally distributed with oppositely rotating spiral protrusions 473. When the conveyor belt deviates to the spiral protrusions 473, a depression is formed at the spiral protrusions 473, increasing the resistance to deviation. Furthermore, due to the spiral arrangement of the spiral protrusions 473 on the surface of the support roller body 472, when the support roller body 472 is passively rotated by the movement of the conveyor belt, it forces the conveyor belt back to the smooth surface of the support roller body 472, thus achieving the conveyor belt correction effect. Furthermore, relying on the passive correction of the intermediate correction roller 47, combined with the active correction of the correction rollers a43, b44, c45, and d46, the conveyor belt can be quickly corrected.

[0041] Accordingly, to enable the movement of the alignment-correcting trolley 04, wheel assemblies 48 are provided on the left frame 41 and the right frame 42, which move along the intermediate storage frame 02. The wheel assemblies 48 can be adapted to the running track installed on the intermediate storage frame 02, thereby enabling the alignment-correcting trolley 04 to move along the intermediate storage frame 02.

[0042] In one embodiment, passive correction components 06 are evenly distributed at equal intervals along the top and bottom of the intermediate storage rack 02.

[0043] In detail, the passive belt alignment component 06 includes a bracket 61, a left passive roller 62, and a right passive roller 63. The bracket 61 is evenly distributed at both the top and bottom of the belt storage intermediate frame 02. The left passive roller 62 and the right passive roller 63 are mounted on the bracket 61 in a V-shape. Spiral circular protrusions 64 with opposite directions of rotation are spirally distributed on the outer wall of the left end of the left passive roller 62 and the outer wall of the right end of the right passive roller 63. When the belt deviates to the spiral circular protrusion 64, the belt will form a depression at the circular protrusion, thereby increasing the resistance to belt deviation. Furthermore, due to the spiral arrangement of the circular protrusions on the surfaces of the left passive roller 62 and the right passive roller 63, when the belt moves, it drives the left passive roller 62 and the right passive roller 63 to rotate passively, which will force the belt back to the smooth surface of the left passive roller 62 and the right passive roller 63, thereby achieving the belt alignment effect.

[0044] It should be noted that in this invention, the control of the drive motor 49 can be achieved through a PLC control cabinet, and the drive motor 49 can be a variable frequency motor. The PLC control cabinet automatically adjusts the frequency of the drive motor 49 to speed up the rotation speed of the correction section, so that each layer of tape swings only within a small range (100mm).

[0045] In one embodiment, the present invention provides a telescopic belt conveyor, including a belt storage bin for the belt conveyor with a correction mechanism.

[0046] The above description discloses only preferred embodiments of the present invention and should not be construed as limiting the scope of the invention. Those skilled in the art will understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A belt storage bin for a belt-correcting conveyor, characterized in that: It includes a belt storage and steering device, a belt storage intermediate frame, and a tensioning device connected in sequence; The intermediate storage rack is equipped with a correction trolley that moves along the intermediate storage rack. A tensioning trolley that is connected to the tensioning device and moves along the intermediate storage rack is installed on the side of the storage rack facing the tensioning device. The corrective trolley includes a left frame, a right frame, and corrective rollers a, b, c, and d rotatably mounted between the left and right frames, and an intermediate corrective roller. Corrective roller c is located directly above corrective roller d, and its active rotation can drive corrective roller d to rotate synchronously. Corrective rollers a and b are longitudinally mounted between corrective roller c and corrective roller d, and their active rotation can drive corrective roller b to rotate synchronously. The intermediate corrective roller is located between corrective roller a and corrective roller b.

2. The belt storage bin for a belt-correcting conveyor according to claim 1, characterized in that: The corrective rollers a, b, c, and d have the same structure. Corrective roller a includes a left roller body, a right roller body, and a support roller shaft. A bearing seat is installed in the middle of the support roller shaft. The left and right roller bodies are symmetrically mounted on the support roller shaft along the bearing seat. Corrective parts are rotatably installed at the left end of the left roller body and the right end of the right roller body. When the corrective part on corrective roller a rotates actively, it can drive the corrective part on corrective roller b to rotate synchronously. When the corrective part on corrective roller c rotates actively, it can drive the corrective part on corrective roller d to rotate synchronously.

3. The belt storage bin for a belt-correcting conveyor according to claim 2, characterized in that: The correction section includes a support roller and spiral protrusions distributed in a spiral shape along the outer wall of the support roller.

4. The belt storage bin for a belt-correcting conveyor according to claim 3, characterized in that: The spiral protrusions on the left and right rollers have opposite spiral directions.

5. The belt storage bin for a belt-correcting conveyor according to claim 4, characterized in that: The intermediate correction roller includes a support shaft and a support roller body symmetrically rotatably mounted on the support shaft; the outer walls of the two ends of the support roller body are spirally distributed with spiral protrusions in opposite directions.

6. The belt storage bin for a belt-correcting conveyor according to claim 5, characterized in that: Wheel assemblies that move along the intermediate frame of the storage belt are provided on the left and right frames.

7. The belt storage bin for a belt-correcting conveyor according to claim 1, characterized in that: Passive correction components are evenly distributed at equal intervals along the top and bottom of the intermediate storage rack.

8. The belt storage bin for a belt-correcting conveyor according to claim 7, characterized in that: The passive correction assembly includes a support, a left passive roller, and a right passive roller. The support is evenly distributed at equal intervals along the top and bottom of the intermediate frame of the belt storage. The left and right passive rollers are mounted on the support in a V-shape. Spiral circular protrusions with opposite directions of rotation are spirally distributed on the outer wall of the left end of the left passive roller and the outer wall of the right end of the right passive roller.

9. A telescopic belt conveyor, characterized in that: Includes the belt storage bin for the belt conveyor as described in any one of claims 1-8.