A flexible belt-shaped roller conveyor device

Abstract

The present invention discloses a flexible belt-shaped body roller belt conveyor device, comprising a support frame and a belt conveyor mechanism; the belt conveyor mechanism comprises an active friction roller, a redirecting roller, a tensioning roller and a friction conveyor belt, the active friction roller is provided with a friction wheel driving component, the tensioning roller is installed on the support frame through a telescopic tensioning component, and the friction conveyor belt connected end to end in a closed loop is sleeved on the active friction roller, the redirecting roller and the tensioning roller; the support frame is provided with a flexible belt-shaped body input end and a flexible belt-shaped body output end, the flexible belt-shaped body input end is correspondingly arranged at the starting point of the wrap angle between the friction conveyor belt and the active friction roller, and the flexible belt-shaped body output end is correspondingly arranged at the end point of the wrap angle between the friction conveyor belt and the active friction roller. The present invention can achieve a larger contact area when conveying a relatively thick and heavy flexible belt-shaped body in a single-layer output, thereby greatly reducing the volume of the equipment and reducing the installation space of the equipment under the premise of improving the conveying efficiency.

Description

Technical Field

[0001] The invention relates to a conveying device, in particular to a wheel-belt conveying device suitable for conveying relatively thick and heavy flexible belt-shaped bodies such as flat tail ropes for mine shafts and rubber belts for belt conveyors, and belongs to the technical field of conveyors. Background Art

[0002] The relatively thick and heavy flexible belt-like body is usually a belt-like structure with a large weight per unit length. Take the flat tail rope and the belt of the belt conveyor as examples: the flat tail rope is a flat steel wire rope, which is a certain number of rope strands (or sub-rope) arranged in parallel on a plane and then woven into a flat belt-like flat steel wire rope by weft rope. It is the only steel wire rope that can meet the requirements of modern large-scale mines for balance ropes. It is absolutely non-rotatable and has a large weight per unit length. As a carrier for belt conveyors to carry and transport materials, the belt should not only have sufficient strength, but also have corresponding carrying capacity. Ultra-long distance belt conveyors usually have high power and large transportation capacity. The belts usually use a structure in which multiple belt segments are connected as one through belt joints, which is large in size and weight.

[0003] The characteristic of large weight per unit length makes it relatively difficult to transport relatively thick and heavy flexible belt bodies in single-layer output. For example, the replacement of mine flat tail ropes and belt conveyor belts requires single-layer output of flat tail ropes or belts, which not only requires consideration of large driving transmission power, but also the slippage during the transportation process.

[0004] The existing conveying device of flat-tail rope or tape usually adopts a conveying device with an opposing clamping conveying structure, that is, the flat-tail rope or tape is clamped and conveyed by an upper clamping conveying component and a lower clamping conveying component composed of multiple clamping rollers with rotational power. On the one hand, since the contact between the clamping roller and the flat-tail rope or tape is line contact, even if the clamping force can be adjusted to achieve compression of the flat-tail rope or tape and then achieve a small range of surface contact, the contact area is still small, which is not only prone to friction slippage, but also has low efficiency; on the other hand, in order to ensure sufficient friction conveying force, it is usually adopted to set multiple upper clamping conveying components and lower clamping conveying components side by side, which invisibly increases the volume of the equipment and thus increases the equipment installation space.

[0005] On the basis of the above technology, the prior art also has an upper clamping conveying component and a lower clamping conveying component that are integrally mounted on the outside of a plurality of clamping rollers with rotating power to form a circulating conveyor structure, and the flat tail rope or tape is clamped and conveyed by the conveying belt or chain plate. Although the contact between the conveying belt or chain plate and the flat tail rope or tape is surface contact, which can reduce friction and slippage, the flat tail rope or tape can only be effectively clamped and conveyed by the clamping roller when the conveying belt or chain plate passes through the clamping roller, that is, its essence is still a line contact method with a small effective contact surface, and there is still a problem of low efficiency. Summary of the invention

[0006] In response to the problems existing in the above-mentioned prior art, the present invention provides a flexible belt roller conveyor device, which can achieve a larger contact area when conveying a relatively thick and heavy flexible belt in a single-layer output, thereby greatly reducing the equipment volume and equipment installation space while improving the conveying efficiency.

[0007] In order to achieve the above-mentioned purpose, the flexible belt-shaped roller belt conveyor device comprises a support frame and a belt conveyor mechanism installed inside the support frame;

[0008] The belt conveyor mechanism comprises an active friction roller, a redirecting roller, a tensioning roller and a friction conveyor belt. The central axes of the active friction roller, the redirecting roller and the tensioning roller are arranged in parallel in space. The active friction roller and the redirecting roller are both mounted on the support frame through a bearing seat positioning installation, and the center dividing surfaces of the active friction roller, the redirecting roller and the tensioning roller are located in the same installation vertical plane; the active friction roller is provided with a friction wheel driving component that can drive the active friction roller to rotate; the tensioning roller is installed on the support frame through a telescopic tensioning component, the body end of the telescopic tensioning component is fixedly installed on the support frame, and the tensioning roller is rollingly installed on the telescopic end of the telescopic tensioning component; the width dimension of the friction conveyor belt matches the width dimension of the flexible belt-shaped body, and the friction conveyor belt connected end to end in a closed loop is sleeved on the active friction roller, the redirecting roller and the tensioning roller;

[0009] The support frame is provided with a flexible belt input end and a flexible belt output end, on which an input guide roller group and an output guide roller group including a plurality of side-by-side rollers are respectively mounted and rolled, the flexible belt input end is arranged correspondingly at a position along the running direction of the friction conveyor belt where the friction conveyor belt enters the starting point of the wrapping angle with the active friction roller, and the flexible belt output end is arranged correspondingly at a position along the running direction of the friction conveyor belt where the friction conveyor belt leaves the ending point of the wrapping angle with the active friction roller.

[0010] As a further improvement of the present invention, a plurality of active friction rollers are provided.

[0011] As an embodiment of the present invention, the number of active friction rollers is set to an odd number, the odd number of active friction rollers are positioned and arranged with upper and lower intervals, and the rotation directions of two adjacent active friction rollers are arranged in opposite directions, a plurality of redirecting rollers are provided, the input end of the flexible strip body is correspondingly arranged at the position of the active friction roller located at the bottom layer or the top layer, and the output end of the flexible strip body is correspondingly arranged at the position of the active friction roller located at the top layer or the bottom layer.

[0012] As another embodiment of the present invention, the number of active friction rollers is set to an even number, the even number of active friction rollers are symmetrically arranged front and back, and the rotation directions of two adjacent active friction rollers are opposite, the redirecting rollers are set to multiple, the input end of the flexible strip body is correspondingly arranged at the position of the active friction roller located at the front end or the rear end, and the output end of the flexible strip body is correspondingly arranged at the position of the active friction roller located at the rear end or the front end.

[0013] As a further improvement of the present invention, the wrap angle between the friction conveyor belt and the active friction roller is not less than 180°.

[0014] As a further improvement of the present invention, the friction conveyor belt adopts a flame retardant antistatic conveyor belt.

[0015] As a further improvement of the present invention, the active friction roller, the redirecting roller or the tensioning roller is also provided with a tape anti-static structure.

[0016] As a further improvement of the present invention, the belt conveyor mechanism further comprises a friction conveyor belt anti-deviation component, and the friction conveyor belt anti-deviation component, which is symmetrically arranged on the left and right, is positioned and installed on the support frame corresponding to the side position of the friction conveyor belt.

[0017] Compared with the prior art, the flexible belt roller conveyor device adopts a friction conveyor belt to squeeze the flexible belt onto the active friction roller and conveys it by driving the active friction roller. When the friction conveyor belt enters the starting point of the wrap angle between it and the active friction roller, the flexible belt is clamped between the wheel surface of the active friction roller and the friction conveyor belt. Under the squeezing effect of the friction conveyor belt and the supporting effect of the active friction roller, the wheel surface of the active friction roller and the friction conveyor belt simultaneously provide conveying friction to the flexible belt. At the same time, the arc surfaces within the entire wrap angle range are all contact surfaces, so a larger contact area and a larger conveying friction can be achieved. Furthermore, when the friction wheel driving component can provide sufficient conveying torque, it is possible to greatly reduce the volume of the equipment and reduce the installation space of the equipment while improving the conveying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention when the flexible belt-shaped body is transported in and out from the same side;

[0019] Figure 2It is a schematic structural diagram of the present invention when a transportation mode is adopted in which a flexible belt-shaped body enters at one side and is discharged at the other side.

[0020] In the figure: 1. Support frame, 11. Input guide roller group, 12. Output guide roller group, 2. Active friction roller, 3. Redirecting roller, 4. Tensioning roller, 41. Telescopic tensioning component, 5. Friction conveyor belt, 6. Flat tail rope. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings (hereinafter referred to as Figure 1 and Figure 2 The left side direction is described as the front).

[0022] like Figure 1 , Figure 2 As shown, the flexible belt roller conveyor device comprises a support frame 1 and a belt conveyor mechanism installed inside the support frame 1 .

[0023] The belt conveyor mechanism comprises an active friction roller 2, a redirecting roller 3, a tensioning roller 4 and a friction conveyor belt 5. The central axes of the active friction roller 2, the redirecting roller 3 and the tensioning roller 4 are arranged in parallel in space. The active friction roller 2 and the redirecting roller 3 are both mounted on the support frame 1 through a bearing seat positioning frame, and the center dividing surface of the active friction roller 2, the redirecting roller 3 and the tensioning roller 4 is located in the same installation vertical surface; the active friction roller 2 can be set to be multiple, and each active friction roller 2 is provided with a friction wheel driving component that can drive the active friction roller 2 to rotate. The friction wheel driving component can be a motor or a Hydraulic motor; the tensioning roller 4 is installed on the supporting frame 1 through the telescopic tensioning component 41. The telescopic tensioning component 41 can be a hydraulic cylinder structure, an electric cylinder structure, or other linear motion structures such as a co-arranged gear rack structure. The body end of the telescopic tensioning component 41 is fixedly installed on the supporting frame 1, and the tensioning roller 4 is rollingly mounted on the telescopic end of the telescopic tensioning component 41; the width dimension of the friction conveyor belt 5 is matched with the width dimension of the flexible belt body, and the friction conveyor belt 5 connected end to end in a closed loop is sleeved on the active friction roller 2, the redirecting roller 3 and the tensioning roller 4.

[0024] The support frame 1 is provided with a flexible strip input end and a flexible strip output end, on which an input guide roller group 11 and an output guide roller group 12 including a plurality of side-by-side rollers are respectively mounted and rolled, and the input guide roller group 11 and the output guide roller group 12 are used to convey and guide the flexible strip, and the flexible strip input end is correspondingly arranged at a position along the running direction of the friction conveyor belt 5 where the friction conveyor belt 5 enters the starting point of the wrapping angle with the active friction roller 2, and the flexible strip output end is correspondingly arranged at a position along the running direction of the friction conveyor belt 5 where the friction conveyor belt 5 leaves the end point of the wrapping angle with the active friction roller 2.

[0025] When the flexible belt-shaped body roller conveyor device is used to convey the flexible belt-shaped body, taking the conveying flat tail rope 6 as an example, the two sides of the conveying end of the flat tail rope 6 are first positioned with the two sides of the friction conveyor belt 5 at the position of the corresponding input guide roller group 11 through clamping and positioning components such as spring clamps and locking clamps, and then the friction wheel driving component of the active friction roller 2 is started, and the active friction roller 2 rotates to drive the friction conveyor belt 5 to move, and at the same time, the friction conveyor belt 5 drives the conveying end of the flat tail rope 6 to move. When the friction conveyor belt 5 at the position corresponding to the input guide roller group 11 enters the starting point of the wrap angle between it and the active friction roller 2, the conveying end of the flat tail rope 6 That is, it is clamped between the wheel surface of the active friction roller 2 and the friction conveyor belt 5. Under the squeezing effect of the friction conveyor belt 5 and the supporting effect of the active friction roller 2, the wheel surface of the active friction roller 2 and the friction conveyor belt 5 simultaneously provide conveying friction to the flat tail rope 6. At the same time, the arc surfaces within the entire wrap angle range are all contact surfaces. Therefore, a larger contact area and a larger conveying friction force can be achieved. When the flat tail rope 6 is output from the end position of the wrap angle between the friction conveyor belt 5 and the active friction roller 2, the friction wheel driving component of the active friction roller 2 can be paused. After the clamping and positioning components are removed, the friction wheel driving component of the active friction roller 2 can be restarted to carry out continuous conveying operations.

[0026] In order to further increase the contact area and friction driving force, as a further improvement of the present invention, multiple active friction rollers 2 are provided, so that the wheel surface of at least one active friction roller 2 and the friction conveyor belt 5 can provide conveying friction to the flat tail rope 6 at the same time.

[0027] In order to further increase the contact area and the friction driving force, as a further improvement of the present invention, the wrap angle between the friction conveyor belt 5 and the active friction roller 2 is not less than 180°.

[0028] As an embodiment of the present invention, the flexible strip body is discharged from the same side, and the number of active friction rollers 2 is set to an odd number, such as Figure 1 As shown, the number of active friction rollers 2 is set to three, an odd number of active friction rollers 2 are positioned and arranged at intervals up and down, and the rotation directions of two adjacent active friction rollers 2 are arranged in opposite directions, the number of redirecting rollers 3 matching the active friction rollers 2 is set to multiple, the input end of the flexible belt body is correspondingly arranged at the position of the active friction roller 2 located at the bottom layer or the top layer, and the output end of the flexible belt body is correspondingly arranged at the position of the active friction roller 2 located at the top layer or the bottom layer.

[0029] As another embodiment of the present invention, the flexible strip body enters from one side and is discharged from the other side, the number of active friction rollers 2 is set to an even number, the even number of active friction rollers 2 are symmetrically arranged front and back, and the rotation directions of two adjacent active friction rollers 2 are opposite, such as Figure 2As shown, the number of active friction rollers 2 is set to four, and the four active friction rollers 2 are symmetrically arranged in pairs front and back, the number of redirecting rollers 3 matching the active friction rollers 2 is set to multiple, the input end of the flexible strip body is correspondingly arranged at the position of the active friction roller 2 located at the front end or the rear end, and the output end of the flexible strip body is correspondingly arranged at the position of the active friction roller 2 located at the rear end or the front end.

[0030] For the rope changing operation and belt changing operation in the coal mine, in order to prevent the potential safety hazard caused by static electricity generated by friction, as a further improvement scheme of the present invention, the friction conveyor belt 5 adopts a flame-retardant antistatic conveyor belt.

[0031] For the rope changing operation and belt changing operation in the coal mine, in order to prevent the static electricity generated by friction and cause safety hazards, as a further improvement scheme of the present invention, the active friction roller 2 or the redirecting roller 3 or the tensioning roller 4 is also provided with a belt anti-static structure. The belt anti-static structure can be a conductive fiber brush structure grounded by a wire, or a conductive metal roller surface structure grounded by a wire, or other structures.

[0032] In order to prevent the friction conveyor belt 5 from running off, as a further improvement of the present invention, the belt conveyor mechanism further includes a friction conveyor belt anti-running component, which is symmetrically arranged on the left and right and is positioned and installed on the support frame 1 corresponding to the side position of the friction conveyor belt 5. The friction conveyor belt anti-running component can be a vertical anti-running roller structure that is arranged to roll along the front and rear directions, or other rolling structures such as a roller structure with a track in the circumferential direction.

[0033] The flexible belt roller conveyor device adopts a friction conveyor belt 5 to squeeze the flexible belt onto the active friction roller 2, and conveys it by driving the active friction roller 2, which can achieve a larger contact area and a larger conveying friction force. Furthermore, when the friction wheel driving component can provide sufficient conveying torque, it can achieve a significant reduction in equipment size and equipment installation space while improving conveying efficiency.

Claims

1. A flexible belt-shaped roller conveyor device, comprising a support frame (1) and a belt conveyor mechanism installed inside the support frame (1); characterized in that: The belt conveyor mechanism comprises an active friction roller (2), a redirecting roller (3), a tensioning roller (4) and a friction conveyor belt (5); the central axes of the active friction roller (2), the redirecting roller (3) and the tensioning roller (4) are arranged in parallel in space; the active friction roller (2) and the redirecting roller (3) are both mounted on a support frame (1) through a bearing seat positioning mounting, and the central dividing planes of the active friction roller (2), the redirecting roller (3) and the tensioning roller (4) are located in the same installation vertical plane; the active friction roller (2) is provided with a drive mechanism that can drive the active friction roller ( 2) a rotating friction wheel driving component; the tensioning roller (4) is installed on the supporting frame (1) through a telescopic tensioning component (41), the body end of the telescopic tensioning component (41) is fixedly installed on the supporting frame (1), and the tensioning roller (4) is rollingly mounted on the telescopic end of the telescopic tensioning component (41); the width dimension of the friction conveyor belt (5) matches the width dimension of the flexible belt-shaped body, and the friction conveyor belt (5) connected end to end to form a closed loop is sleeved on the active friction roller (2), the redirecting roller (3) and the tensioning roller (4); The support frame (1) is provided with a flexible belt input end and a flexible belt output end, and an input guide roller group (11) and an output guide roller group (12) including a plurality of parallel rollers are respectively mounted and rollingly mounted on the flexible belt input end and the flexible belt output end. The flexible belt input end is correspondingly arranged at a starting point of a wrap angle between the friction conveyor belt (5) and the active friction roller (2) in the running direction of the friction conveyor belt (5), and the flexible belt output end is correspondingly arranged at a terminal point of a wrap angle between the friction conveyor belt (5) and the active friction roller (2) in the running direction of the friction conveyor belt (5).

2. The flexible belt roller conveyor according to claim 1, characterized in that: The active friction rollers (2) are arranged in plurality.

3. The flexible belt roller conveyor according to claim 2, characterized in that: The number of active friction rollers (2) is set to an odd number, the odd number of active friction rollers (2) are arranged with an interval between the upper and lower positions, and the rotation directions of two adjacent active friction rollers (2) are arranged in opposite directions, a plurality of redirecting rollers (3) are arranged, the input end of the flexible belt body is arranged correspondingly at the position of the active friction roller (2) located at the bottom layer or the top layer, and the output end of the flexible belt body is arranged correspondingly at the position of the active friction roller (2) located at the top layer or the bottom layer.

4. The flexible belt roller conveyor according to claim 2, characterized in that: The number of active friction rollers (2) is set to an even number, the even number of active friction rollers (2) are symmetrically arranged front and back, and the rotation directions of two adjacent active friction rollers (2) are opposite, a plurality of redirecting rollers (3) are set, the input end of the flexible belt body is correspondingly arranged at the position of the active friction roller (2) located at the front end or the rear end, and the output end of the flexible belt body is correspondingly arranged at the position of the active friction roller (2) located at the rear end or the front end.

5. The flexible belt roller conveyor according to any one of claims 1 to 4, characterized in that: The wrap angle between the friction conveyor belt (5) and the active friction roller (2) is not less than 180°.

6. The flexible belt roller conveyor according to any one of claims 1 to 4, characterized in that: The friction conveyor belt (5) adopts a flame retardant antistatic conveyor belt.

7. The flexible belt roller conveyor according to any one of claims 1 to 4, characterized in that: The active friction roller (2) or the redirecting roller (3) or the tensioning roller (4) is also provided with a tape anti-static structure.

8. The flexible belt roller conveyor according to any one of claims 1 to 4, characterized in that: The belt conveyor mechanism also includes a friction conveyor belt anti-deviation component, and the friction conveyor belt anti-deviation component is symmetrically arranged on the left and right and is positioned and installed on the support frame (1) corresponding to the side position of the friction conveyor belt (5).

Images