Groove type carrier roller device and belt conveyor

Abstract

The invention relates to a groove-shaped carrier roller device and a belt conveyor. The groove-shaped carrier roller device comprises a bottom support, a carrier roller frame, a connecting mechanism and a limiting piece, the connecting mechanism and the limiting piece are arranged between the bottom support and the carrier roller frame, and the connecting mechanism comprises a first connecting base arranged in the middle of the carrier roller frame and a second connecting base rotationally connected with the bottom support through a first shaft; the first connecting base is in sliding connection with the second connecting base in the left-right direction of the groove-shaped carrier roller device, and when the groove-shaped carrier roller device is used for bearing the conveying belt, the axis of the first shaft extends in the conveying direction of the conveying belt; the limiting piece is used for limiting the rotating angle of the carrier roller frame around the first shaft. The groove-shaped carrier roller device is used for a turning section of a belt conveyor, the height of the inner curve side of the groove-shaped carrier roller set can be automatically adjusted under the combined action of centripetal force and tension of a conveying belt according to different turning radiuses of a roadway chamber, manual intervention is not needed, and the groove-shaped carrier roller device can well adapt to different turning radiuses in a self-adaptive mode.

Description

Technical Field

[0001] This invention relates to the field of belt conveyor technology, and more specifically to a trough-type idler device and a belt conveyor. Background Technology

[0002] Belt conveyors are important equipment in mining bulk material conveying equipment. Belt conveyors that can adapt to various turning radii are one of the commonly used equipment for bulk material conveying in coal mines. Achieving smooth transition and free turning of belt conveyors is currently a challenge in the curved section conveying of belt conveyors.

[0003] The currently used trough-type idler roller device cannot achieve a free and smooth transition, nor can it adapt to different turning radii. The angle of the trough-type idler roller can only be adjusted manually according to the actual working conditions. The adjustment process is complicated, cumbersome, time-consuming and labor-intensive. Summary of the Invention

[0004] In view of this, the present invention provides an improved trough idler device for belt conveyors, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art.

[0005] A second objective of the present invention is to provide a belt conveyor.

[0006] To achieve the aforementioned objectives, the technical solution adopted by the present invention is as follows:

[0007] A trough-type idler device for a belt conveyor, the trough-type idler device comprising:

[0008] Base support;

[0009] A roller frame, on which multiple rollers are respectively arranged to rotate around their own axis;

[0010] A connecting mechanism is disposed between the base support and the roller frame;

[0011] The connecting mechanism includes a first connecting seat disposed in the middle of the idler frame and a second connecting seat rotatably connected to the bottom support via a first shaft. The first connecting seat is slidably connected to the second connecting seat in the left-right direction of the trough idler device. The axis of the first shaft extends in the horizontal direction, and when the trough idler device is used to support the conveyor belt, the axis of the first shaft also extends in the conveying direction of the conveyor belt.

[0012] The trough-shaped idler roller device also includes a limiting member that is rotatably connected between the bottom support and the idler roller frame, the limiting member being used to limit the angle of rotation of the idler roller frame around the first axis.

[0013] In the aforementioned trough-type idler device for belt conveyors, optionally, a groove extending along the sliding direction of the first connecting seat is formed on one of the two components, the first connecting seat and the second connecting seat. The connecting mechanism also includes a pin inserted into the other component of the two components. The pin is also inserted into the groove and can slide within the groove. The other component can also rotate around the axis of the pin, and the axis of the pin extends in the vertical direction.

[0014] Optionally, the first connecting seat is integrally formed with the roller frame;

[0015] The second connecting seat includes a main body, a connecting part and a connecting part connected to opposite sides of the main body, respectively. The connecting part and the connecting part extend laterally from the main body, so that an open receiving cavity is formed between the connecting part, the main body and the connecting part. The first connecting seat is slidably inserted into the receiving cavity. The connecting part and the connecting part are respectively provided with the sliding groove. The pin passes through the sliding groove of the connecting part, the first connecting seat and the connecting part in sequence.

[0016] In the aforementioned trough-type idler roller device for belt conveyors, optionally, one end of the limiting member is rotatably connected to the bottom support via a second shaft, and the other end of the limiting member is rotatably connected to the idler roller frame via a third shaft, wherein the center lines of the first shaft, the second shaft, and the third shaft are parallel to each other.

[0017] Optionally, a first through hole is provided at one end of the limiting member, and a second through hole is provided at the other end of the limiting member. The second shaft passes through the first through hole, and the third shaft passes through the second through hole. The diameter of the first through hole is larger than the outer diameter of the second shaft, and the diameter of the second through hole is larger than the outer diameter of the third shaft, so that gaps are reserved between the wall of the first through hole and the outer wall of the second shaft, and between the wall of the second through hole and the outer wall of the third shaft, respectively.

[0018] Optionally, the trough roller device further includes a limiting groove for limiting the rotation angle of the limiting member; the limiting groove is formed on the bottom support and extends along the left and right direction of the trough roller device, and the limiting member can enter the limiting groove during rotation.

[0019] In the aforementioned trough-type idler roller device for belt conveyors, optionally, the left and right ends of the bottom support are respectively provided with the second shaft, the left and right ends of the idler roller frame are respectively provided with the third shaft, and the left and right ends of the bottom support are respectively provided with the limiting groove. The limiting member is connected between the second shaft and the third shaft on the left side, or between the second shaft and the third shaft on the right side.

[0020] In the aforementioned trough idler device for belt conveyors, optionally, the trough idler device further includes guide rollers that are rotatably disposed on the left and right sides of the idler frame, respectively, about their own axis. The guide rollers on both sides are located on the left and right sides of the plurality of idlers, and each guide roller is used to confine the conveyor belt between the guide rollers on both sides.

[0021] In the aforementioned trough-type idler device for belt conveyors, optionally, the bottom support includes a bottom support body and a connecting lug integrally connected to the middle part of the bottom support body, wherein the connecting lug and the second connecting seat are rotatably connected through the first shaft.

[0022] The second technical solution adopted by the present invention is: a belt conveyor, comprising the aforementioned trough-shaped idler roller device.

[0023] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0024] The trough idler device of the present invention is used in the turning section of a belt conveyor. It can automatically adjust the height of the inner curve side of the trough idler group according to the different turning radii of the tunnel chamber, under the combined action of centripetal force and conveyor belt tension, without manual intervention, and can adapt well to different turning radii. Attached Figure Description

[0025] The disclosure of this invention will become more apparent from the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention.

[0026] Figure 1 This is a schematic diagram of the structure of the trough-type idler device for a belt conveyor provided in an embodiment of the present invention;

[0027] Figure 2 for Figure 1 A schematic diagram of the structure of the bottom support of the trough-type idler roller device;

[0028] Figure 3 for Figure 1 A schematic diagram of the structure of the second connecting seat of the trough-type idler roller device;

[0029] Figure 4 for Figure 1 A schematic diagram of the structure of the roller frame of the trough-type roller device;

[0030] Figure 5 for Figure 1 A schematic diagram of the limiting component of the trough-type idler roller device;

[0031] Figure 6 for Figure 1 A schematic diagram of a trough-type idler device used in belt conveyors when they are turning;

[0032] Figure 7 for Figure 1 A schematic diagram of the trough-type idler device used in a belt conveyor when it is in a straight line without turning.

[0033] In the picture:

[0034] 1. Base support; 101. Base support body; 102. Connecting lug; 2. Idler roller frame; 3. Idler roller; 4. First connecting seat; 5. Second connecting seat; 501. Body part; 502. Connecting part one; 503. Connecting part two; 6. First shaft; 7. Second shaft; 8. Third shaft; 9. Pin; 10. Slide groove; 11. Limiting component; 12. First through hole; 13. Second through hole; 14. Limiting groove; 15. Guide roller. Detailed Implementation

[0035] As described in the background section, achieving a smooth transition and free turning is currently a challenge for belt conveyors in curved sections. To achieve a smooth and free transition, the inner curved side of the trough roller assembly needs to be raised. The higher the inner curved side is raised, the smaller the turning radius of the belt conveyor can be. However, excessive raising will cause the material's angle of repose to exceed the material's angle of repose, resulting in material spillage.

[0036] Based on this, this application sets a connecting mechanism and a limiting component between the idler frame and the bottom support, so that the idler frame can slide in the left and right directions and rotate at a certain angle in the left and right directions. This allows the trough idler device to adjust the height of the inner curve side of the trough idler group according to the different turning radii of the tunnel chamber, under the action of centripetal force and conveyor belt tension, so as to achieve free and smooth transition turning and adapt to different turning radii.

[0037] Furthermore, the trough idler device also integrates the self-centering function of the trough idler group, which can realize horizontal rotation adjustment of the trough idler group within a small angle range to prevent the conveyor belt from running off-center and wearing out.

[0038] Referring to the accompanying drawings and specific embodiments, the structure, composition, features, and advantages of the trough roller device of the present invention will be described below by way of example; however, all descriptions should not be construed as limiting the present invention in any way.

[0039] For any single technical feature described or implied in the embodiments submitted herein, or any single technical feature shown or implied in the various drawings, the present invention still operates in any combination or deletion among these technical features or their equivalents without any technical obstacle, and thus these further embodiments according to the present invention should also be considered within the scope of the description herein.

[0040] Reference Figure 1 The trough-type idler device for the belt conveyor shown includes a base support 1, an idler frame 2, and a connecting mechanism.

[0041] Depend on Figure 2 As can be seen, the base support 1 includes a base support body 101 and a connecting ear seat 102 integrally connected to the middle part of the base support body 101.

[0042] When the trough-type idler device is used in a belt conveyor, both ends of the bottom support body 101 are fixed to the truss of the belt conveyor by bolts.

[0043] The roller frame 2 is provided with a grooved roller group. The grooved roller group includes multiple rollers that are respectively set on the roller frame 2 and rotate around their own axis. Specifically, it includes side rollers located on the left and right sides of the roller frame 2 and a middle roller located between the two side rollers. The middle roller extends in the horizontal direction, and each side roller extends in an inclined direction in the horizontal direction, forming a downward concave groove shape.

[0044] See also Figure 1 The connecting mechanism includes a first connecting seat 4 disposed in the middle of the roller frame 2 and a second connecting seat 5 rotatably connected to the connecting lug 102 of the bottom support 1 via a first shaft 6. The first connecting seat 4 is slidably connected to the second connecting seat 5 along the left-right direction of the trough roller device. The axis of the first shaft 6 extends horizontally, and when the trough roller device is used to support the conveyor belt, the axis of the first shaft 6 also extends along the conveying direction of the conveyor belt. In this invention, "left" and "right" refer to the fact that when the trough roller device is used in a belt conveyor, the conveying direction of the conveyor belt is the front-to-back direction, and the left-right direction of the conveyor belt is the left-right direction of the trough roller device.

[0045] Optionally, a groove 10 extending along the sliding direction of the first connecting seat 4 is provided on one of the two components, the first connecting seat 4 and the second connecting seat 5. The connecting mechanism also includes a pin 9 inserted into the other component of the two components, the first connecting seat 4 and the second connecting seat 5. The pin 9 is also inserted into the groove 10 and can slide within the groove 10. The other component can also rotate around the axis of the pin 9, and the axis of the pin 9 extends in the vertical direction.

[0046] In this example, Figure 3A schematic diagram of the structure of the second connecting seat 5 is shown. As can be seen from the figure, the second connecting seat 5 includes a main body 501, a connecting part 502 and a connecting part 503 respectively connected to opposite sides of the main body 501. The connecting part 502 and the connecting part 503 extend laterally from the main body 501, so that an open receiving cavity is formed between the connecting part 502, the main body 501 and the connecting part 503. The first connecting seat 4 is slidably inserted into the receiving cavity. A sliding groove 10 is formed on the second connecting seat 5, and is formed by... Figure 3 As can be seen, the sliding groove 10 is respectively provided on the connecting part 502 and the connecting part 503. The pin 9 is sequentially inserted into the sliding groove of the connecting part 502, the first connecting seat 4 and the sliding groove of the connecting part 503. The first connecting seat 4 can also rotate around the axis of the pin 9. However, when the first connecting seat 4 rotates around the pin 9, it is also restricted by the side of the body part 501 of the second connecting seat 5. Therefore, the first connecting seat 4 can rotate around the axis of the pin 9 within a small range. The axis of the pin 9 is perpendicular to the axis of the first shaft 6.

[0047] Figure 4 A schematic diagram of the structure of the roller frame 2 is shown. As can be seen from the figure, the first connecting seat 4 is integrally formed with the roller frame 2.

[0048] See also Figure 1 The trough-shaped idler roller device also includes a limiting member 11 that is rotatably connected between the bottom support 1 and the idler roller frame 2, and the limiting member 11 is used to limit the angle of rotation of the idler roller frame 2 around the first axis 6.

[0049] One end of the limiting member 11 is rotatably connected to the bottom support 1 via the second shaft 7, and the other end of the limiting member 11 is rotatably connected to the roller frame 2 via the third shaft 8. The center lines of the first shaft 6, the second shaft 7, and the third shaft 8 are parallel to each other. The second shaft 7 is fixedly connected to the end of the bottom support body 101 of the bottom support 1, and the third shaft 8 is fixedly connected to the corresponding end of the roller frame 2.

[0050] Figure 5 A schematic diagram of the limiting member 11 is shown. As can be seen from the figure, a first through hole 12 is opened at one end of the limiting member 11, and a second through hole 13 is opened at the other end of the limiting member 11. The second shaft 7 passes through the first through hole 12, and the third shaft 8 passes through the second through hole 13. The diameter of the first through hole 12 is larger than the outer diameter of the second shaft 7, and the diameter of the second through hole 13 is larger than the outer diameter of the third shaft 8. This allows for gaps to be reserved between the wall of the first through hole 12 and the outer wall of the second shaft 7, and between the wall of the second through hole 13 and the outer wall of the third shaft 8, respectively, providing a degree of freedom for the roller frame 2 to rotate horizontally at a small angle around the axis of the pin shaft 9.

[0051] The trough-type idler roller device also includes a limiting groove 14 for limiting the rotation angle of the limiting member 11. See Figure 1 and Figure 2 The limiting groove 14 is provided on the base support body 101 of the base support 1 and extends along the left and right directions of the trough roller device. During the rotation of the limiting member 11, it can enter the limiting groove 14. When the limiting member 11 rotates into the limiting groove 14 and abuts against the end of the limiting groove 14, the limiting groove 14 restricts the further rotation of the limiting member 11, so as to avoid the inner curve side being raised too high when turning, which would cause the material accumulation angle to exceed the material repose angle and cause the rolling material to spill.

[0052] Optionally, a second shaft 7 is provided at the left and right ends of the base support body 101 of the base support 1, and a third shaft 8 is provided at the left and right ends of the idler roller frame 2. A limiting groove 14 is also provided at the left and right ends of the base support 1. The limiting member 11 is connected between the left second shaft 7 and the third shaft 8, or between the right second shaft 7 and the third shaft 8, so that when the trough idler roller device is used for a belt conveyor, the limiting member 11 can be connected to the left or right side according to the turning direction of the tunnel chamber.

[0053] See also Figure 1 The trough-shaped idler roller device also includes guide rollers 15 that are rotatably arranged on the left and right sides of the idler roller frame 2 around their own axis. The guide rollers 15 are located on the left and right sides of the multiple idler rollers 3 respectively, and the guide rollers 15 are used to restrict the conveyor belt between the guide rollers 15.

[0054] The guide roller 15 includes a guide roller section 1 and a guide roller section 2 formed at the upper end of the guide roller section 1. The outer diameter of the guide roller section 2 is larger than the outer diameter of the guide roller section 1, which facilitates pressing the conveyor belt onto the idler roller.

[0055] The trough-shaped idler is used at the bend of the belt conveyor. The bottom support body 101 is fixed to the truss of the belt conveyor by bolts. The conveyor belt is placed above the idler and is confined between the guide rollers on both sides.

[0056] like Figure 6 As shown, at the turning point of the conveyor belt, this trough idler device can, according to the different turning radii of the tunnel chamber, under the combined action of centripetal force and conveyor belt tension, on the one hand, the first connecting seat 4 can slide horizontally left and right through the pin shaft 9, and at the same time, it can also rotate horizontally at a small angle around the axis of the pin shaft 9; on the other hand, the first connecting seat 4 and the second connecting seat 5 can also rotate left and right around the axis of the first shaft 6, and at the same time, under the action of the limiting rod 11, it can prevent rolling and spillage of materials. The height of the inner curve side of the trough idler group is freely and smoothly self-adjusting, requiring no manual intervention, making it convenient and efficient to use. It can also adapt to small turning radii and self-adjust centering function to prevent the conveyor belt from running off-center and wearing.

[0057] In some alternative embodiments, the trough-shaped idler assembly can also be used when the belt conveyor is in a straight section without turns, where the limiting member 11 can be removed, such as... Figure 7 As shown, this provides the trough idler device with the maximum horizontal rotational freedom, and the self-centering effect of the trough idler device is the best, which can effectively prevent the conveyor belt from running off-center and improve the service life of the conveyor belt.

[0058] The above embodiments are only used to illustrate the embodiments of the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the embodiments of the present invention. Therefore, all equivalent technical solutions also fall within the scope of the embodiments of the present invention, and the patent protection scope of the embodiments of the present invention should be defined by the claims.

Claims

1. A trough-type idler device for a belt conveyor, characterized in that, The trough-type idler roller device includes: Base support; A roller frame, on which multiple rollers are respectively arranged to rotate around their own axis; A connecting mechanism is disposed between the base support and the roller frame; The connecting mechanism includes a first connecting seat disposed in the middle of the idler frame and a second connecting seat rotatably connected to the bottom support via a first shaft. The first connecting seat is slidably connected to the second connecting seat in the left-right direction of the trough idler device. The axis of the first shaft extends in the horizontal direction, and when the trough idler device is used to support the conveyor belt, the axis of the first shaft also extends in the conveying direction of the conveyor belt. The trough-shaped idler roller device also includes a limiting member that is rotatably connected between the bottom support and the idler roller frame, the limiting member being used to limit the angle of rotation of the idler roller frame around the first axis.

2. The trough-type idler roller device for belt conveyors according to claim 1, characterized in that, The first connecting seat and the second connecting seat have a sliding groove extending along the sliding direction of the first connecting seat on one of the two components. The connecting mechanism also includes a pin inserted into the other component of the two components. The pin is also inserted into the sliding groove and can slide in the sliding groove. The other component can also rotate around the axis of the pin, and the axis of the pin extends in the vertical direction.

3. The trough-type idler roller device for a belt conveyor according to claim 2, characterized in that, The first connecting seat and the roller frame are integrally formed; The second connecting seat includes a main body, a connecting part and a connecting part connected to opposite sides of the main body, respectively. The connecting part and the connecting part extend laterally from the main body, so that an open receiving cavity is formed between the connecting part, the main body and the connecting part. The first connecting seat is slidably inserted into the receiving cavity. The connecting part and the connecting part are respectively provided with the sliding groove. The pin passes through the sliding groove of the connecting part, the first connecting seat and the connecting part in sequence.

4. The trough-type idler roller device for a belt conveyor according to claim 1, characterized in that, One end of the limiting member is rotatably connected to the bottom support via a second shaft, and the other end of the limiting member is rotatably connected to the roller frame via a third shaft. The center lines of the first shaft, the second shaft, and the third shaft are parallel to each other.

5. The trough-type idler roller device for a belt conveyor according to claim 4, characterized in that, One end of the limiting member has a first through hole, and the other end of the limiting member has a second through hole. The second shaft passes through the first through hole, and the third shaft passes through the second through hole. The diameter of the first through hole is larger than the outer diameter of the second shaft, and the diameter of the second through hole is larger than the outer diameter of the third shaft, so that gaps are reserved between the wall of the first through hole and the outer wall of the second shaft, and between the wall of the second through hole and the outer wall of the third shaft.

6. The trough-type idler roller device for a belt conveyor according to claim 4, characterized in that, The trough-shaped idler roller device also includes a limiting groove for limiting the rotation angle of the limiting member; The limiting groove is formed on the bottom support and extends along the left and right direction of the trough-shaped roller device. The limiting member can enter the limiting groove during rotation.

7. The trough-type idler device for a belt conveyor according to claim 6, characterized in that, The second shaft is provided at both the left and right ends of the base support, and the third shaft is provided at both the left and right ends of the roller frame. The limiting groove is also provided at both the left and right ends of the base support. The limiting member is connected between the second shaft and the third shaft on the left side, or between the second shaft and the third shaft on the right side.

8. The trough-type idler device for a belt conveyor according to any one of claims 1 to 7, characterized in that, The trough-shaped idler roller device also includes guide rollers that are rotatably arranged on the left and right sides of the idler roller frame, respectively, around their own axis. The guide rollers on both sides are located on the left and right sides of the plurality of idlers, and the guide rollers on both sides are used to restrict the conveyor belt between the guide rollers on both sides.

9. The trough-type idler device for a belt conveyor according to any one of claims 1 to 7, characterized in that, The base support includes a base support body and a connecting lug integrally connected to the middle part of the base support body. The connecting lug and the second connecting seat are rotatably connected through the first shaft.

10. A belt conveyor, characterized in that, The belt conveyor includes the trough-type idler device according to any one of claims 1 to 9.

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