Method and device for replacing belt of belt conveyor

Abstract

The invention discloses a belt replacement method and device for a belt conveyor, and relates to the technical field of mechanical equipment maintenance, and the technical scheme is characterized by comprising the following steps: arranging an old belt winding frame and a new belt winding frame, and sequentially placing the old belt winding frame and the new belt winding frame on one side of a tail wheel of the belt conveyor; the old belt is cut off from a tail wheel of the belt conveyor, one end of the old belt is fixed to an old belt winding frame, and the other end of the old belt is connected with the new belt end; the transmission between the belt speed reducer and the head wheel driving roller is relieved; multiple groups of power rollers are arranged, and meanwhile, upper clamping rollers are arranged to be matched with the power rollers to clamp the belt part; the exterior of the power roller is connected to a driving motor to drive the power roller to rotate. The old belt on the belt conveyor is connected with the new belt, and the power roller is matched with the upper clamping roller to implement integral transmission on the belt, so that the old belt can drive the new belt to automatically sleeve the belt conveyor while being separated from the belt conveyor, the time for manually dismounting and mounting the belt is saved, and the replacement efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical equipment maintenance, and in particular to a belt conveyor belt replacement method and device. Background Art

[0002] As a material conveying equipment, belt conveyors are widely used in industrial sites such as coal mines, metal mines, cement plants, and non-metallic mines. Limited by the difficulty of entering large equipment in underground and factory spaces, the removal of old belts and the installation of new belts require a lot of manual work, which can easily lead to safety accidents. At the same time, the steps of manual belt replacement are complicated and the operation is extremely inconvenient, resulting in low replacement efficiency.

[0003] In view of this, the present invention is designed to solve the above-mentioned problems.

[0004] The above contents are only used to assist in understanding the technical solution of the present invention, and do not constitute an admission that the above contents are the closest prior art. Summary of the invention

[0005] The object of the present invention is to solve the above-mentioned shortcomings and provide a belt conveyor belt replacement method and device.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The belt conveyor belt replacement method includes the following steps:

[0008] S1. Set up an old belt winding frame and a new belt winding frame, and wind the new belt on the new belt winding frame;

[0009] S2. Place the old belt winding frame and the new belt winding frame on one side of the tail wheel of the belt conveyor in sequence, and keep them aligned with the center line of the belt movement direction;

[0010] S3. Cut off the old belt from the tail wheel of the belt conveyor, fix one end of it to the old belt reel, and connect the other end to the end of the new belt;

[0011] S4, release the transmission connection between the belt reducer and the first wheel driving roller, so that the first wheel driving roller can rotate freely;

[0012] S5. multiple groups of power rollers are arranged in the middle of the belt, and upper clamping rollers are arranged to cooperate with the power rollers to clamp the belt portion located on the upper side thereof;

[0013] S6, connecting the power roller to the drive motor so that the drive motor can drive the power roller to rotate;

[0014] S7, start the driving motor to drive the power roller to rotate, so that the old belt is wound onto the old belt winding rack and the new belt is unwound from the new belt winding rack to replace the old belt and be installed on the belt conveyor;

[0015] S8. Cut off the connection between the new belt and the old belt, and connect the two ends of the new belt to form a closure.

[0016] Furthermore, in step S5, a lower clamping roller is provided on the side of the power roller away from the upper clamping roller, and the upper clamping roller and the lower clamping roller cooperate with the power roller to clamp the belts on both sides.

[0017] A belt conveyor belt replacement device, used for the above-mentioned belt replacement method, comprises two sets of fixed frames arranged in parallel, one set of fixed frames is provided with a mounting platform for installing a driving motor, and the driving motor is transmission-connected to one end of a power roller; the two ends of the power roller, the upper clamping roller and the lower clamping roller are respectively rotatably arranged on the two sets of fixed frames, wherein the fixed frames are also provided with an adjustment component for adjusting the distance between the upper clamping roller and the lower clamping roller relative to the power roller.

[0018] Furthermore, a fixed transverse plate is arranged on the fixed frame at the side of the power roller away from the mounting platform, and a bearing at one end of the power roller away from the mounting platform is arranged on the fixed transverse plate.

[0019] Furthermore, the adjustment component includes two groups of movable horizontal plates arranged in a fixed frame and movable with upper and lower limits, and a bidirectional threaded screw with bearings at both ends arranged on the fixed frame and threadedly connected to the two groups of movable horizontal plates; the two ends of the upper clamping roller and the lower clamping roller are rotatably arranged on the movable horizontal plate, and the two groups of movable horizontal plates move relatively synchronously on the fixed frame.

[0020] Furthermore, the driving motor is connected to the power roller via an output shaft, and a pulling component for tightening the belt portion moving toward the power roller is also provided on the fixing frame.

[0021] Furthermore, the pulling assembly includes two groups of rotating shafts with bearings at both ends respectively arranged on two groups of fixed frames, silicone plates evenly arranged on the rotating shafts, and two groups of gears respectively arranged on the two groups of fixed frames close to one end of the driving motor and meshing with each other; the two groups of rotating shafts are respectively located on the upper and lower sides of the belt part moving toward the power roller; one group of gears is provided with a pulley, and a transmission belt for transmission is sleeved on the output shaft and the pulley, so that the silicone plates on the two groups of rotating shafts sweep in the opposite direction of the belt movement direction.

[0022] Compared with the prior art, the beneficial effect of the present scheme is as follows: the present invention connects the old belt on the belt conveyor with the new belt, and transmits the belt as a whole through the power roller and the clamping roller, so that the old belt is detached from the belt conveyor and the new belt is automatically put on the belt conveyor at the same time, which saves the manpower time for removing and installing the belt, improves the replacement efficiency, and has higher overall safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0024] Figure 1 is a front perspective schematic diagram of a belt replacement method implemented by a device according to an embodiment of the present invention;

[0025] Figure 2 is a side perspective schematic diagram of a belt replacement method implemented by an apparatus according to an embodiment of the present invention;

[0026] Figure 3 is a schematic front view of the structure of the device according to an embodiment of the present invention;

[0027] Figure 4 is a schematic side view of the structure of the device according to an embodiment of the present invention;

[0028] Figure 5 It is a schematic diagram of the transmission relationship between the driving motor and the pulling component in an embodiment of the present invention.

[0029] In the figure: 1. Old belt winding frame; 11. New belt winding frame; 2. Power roller; 21. Upper clamping roller; 22. Lower clamping roller; 23. Driving motor; 24. Output shaft; 3. Fixed frame; 31. Mounting table; 32. Fixed cross plate; 4. Movable cross plate; 41. Bidirectional threaded screw; 5. Rotating shaft; 51. Silicone plate; 52. Gear; 53. Pulley; 54. Transmission belt. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0031] The present invention provides a belt conveyor belt replacement method, comprising the following steps:

[0032] First, set up an old belt winding rack 1 and a new belt winding rack 11, and wind the new belt on the new belt winding rack 11, then place the old belt winding rack 1 and the new belt winding rack 11 on one side of the tail wheel of the belt conveyor in turn, and keep the two aligned with the center line of the belt movement direction to control the subsequent belts to be accurately docked; then cut off the old belt from the tail wheel of the belt conveyor, and fix one end of it to the old belt winding rack 1, and connect the other end to the end of the new belt, and the connection method is the conventional belt connection technology, that is, the hot melt hot pressing connection process, or a special belt buckle connection, etc. After the connection is completed, it is best to keep the belt as a whole in a taut state; then release the transmission connection between the belt reducer and the first wheel drive roller, that is, disengage the coupling between the reducer and the first wheel drive roller, so that the first wheel drive roller can rotate freely; then set up multiple sets of power rollers 2 and place them in the middle position of the two sections of the cut belt. At the same time, an upper clamping roller 21 is arranged to cooperate with the power roller 2 to clamp the belt part located on its upper side. The upper belt end is connected to the old belt winding frame 1, so when the old belt winding frame 1 is wound, the new belt can be completely pulled out and put on the belt conveyor; finally, the power roller 2 is connected to the outside of the drive motor 23, and the drive motor 23 is started to drive the power roller 2 to rotate. When the power roller 2 rotates, it will cooperate with the upper clamping roller 21 to clamp the old belt and move, and at the same time cooperate with the winding work of the old belt winding frame 1 to guide the old belt to be stably wound onto the old belt winding frame 1. When the old belt is wound onto the old belt winding frame 1, it will drive the new belt to be unwound from the new belt winding frame 11, and gradually replace the old belt to be put on the belt conveyor, cut off the connection between the new belt and the old belt, and connect the two ends of the new belt to form a closure, thereby completing the belt replacement work in an orderly and efficient manner.

[0033] In one embodiment, a lower clamping roller 22 is further provided on the side of the power roller 2 away from the upper clamping roller 21. The upper clamping roller 21 and the lower clamping roller 22 cooperate with the power roller 2 to clamp the belts on both sides thereof, so that when the power roller 2 rotates, the friction force drives the belt parts on both sides to transmit synchronously, so that the part of the belt located on the belt conveyor maintains tension. This method of using the power roller 2 to cooperate with the upper clamping roller 21 and the lower clamping roller 22 to clamp the belt from both ends and generate traction force ensures that the belt will not be offset when it moves, and the replacement process is more stable.

[0034] like Figure 1-5As shown, a belt conveyor belt replacement device adapted and designed according to the above-mentioned belt replacement method comprises two sets of fixed frames 3 arranged in parallel, one set of fixed frames 3 is provided with a mounting platform 31 for mounting a driving motor 23, and the driving motor 23 is drivingly connected to one end of the power roller 2; the two ends of the power roller 2, the upper clamping roller 21, and the lower clamping roller 22 are rotatably arranged on the two sets of fixed frames 3, wherein the fixed frames 3 are also provided with an adjustment component for adjusting the distance between the upper clamping roller 21 and the lower clamping roller 22 relative to the power roller 2, and the required distance in the above-mentioned method is adjusted by adjusting the upper clamping roller 21 and the lower clamping roller 22. The important structural parts are integrated into a whole, which is convenient for moving and transportation and saves time for assembly. When the device is in use, it is only necessary to pass the two ends of the old belt through the position between the power roller 2 and the upper clamping roller 21 and the lower clamping roller 22 after the old belt is cut off, and connect them to the old belt winding frame 1 and the end of the new belt respectively, and then move the upper clamping roller 21 and the lower clamping roller 22 through the adjustment component to cooperate with the power roller 2 on both sides of the power roller 2 to clamp the belt, and then drive the drive motor 23 to implement the winding of the old belt and the replacement of the new belt.

[0035] In one embodiment, a fixed cross plate 32 is provided on the fixed frame 3 on the side of the power roller 2 away from the mounting platform 31, and the bearing at one end of the power roller 2 away from the mounting platform 31 is provided on the fixed cross plate 32. The fixed cross plate 32 is fixed as a whole, and it is inconvenient to maintain the height of the power roller 2. The belt clamping action is implemented only by adjusting and moving the upper clamping roller 21 and the lower clamping roller 22.

[0036] In one embodiment, the adjustment component includes two groups of movable horizontal plates 4 arranged in the fixed frame 3 and movable in upper and lower limit positions, and a bidirectional threaded screw 41 with bearings at both ends arranged on the fixed frame 3 and threadedly connected to the two groups of movable horizontal plates 4; the upper clamping roller 21 and the lower clamping roller 22 are rotatably arranged at both ends on the movable horizontal plates 4, and the two groups of movable horizontal plates 4 move relatively synchronously on the fixed frame 3. By rotating the bidirectional threaded screw 41, the upper clamping roller 21 and the lower clamping roller 22 can be driven to synchronously approach the power roller 2 to clamp the belt.

[0037] In one embodiment, the driving motor 23 is connected to the power roller 2 through the output shaft 24, and a pulling assembly for tightening the belt portion moving toward the power roller 2 is also provided on the fixed frame 3, and the pulling assembly includes two groups of rotating shafts 5 with bearings at both ends respectively arranged on the two groups of fixed frames 3, a silicone plate 51 evenly arranged on the rotating shafts 5, and two groups of gears 52 respectively arranged on the two groups of fixed frames 3 near one end of the driving motor 23 and meshing with each other; the two groups of rotating shafts 5 are respectively located on the upper and lower sides of the belt portion moving toward the power roller 2; a pulley 53 is provided on one group of gears 52, and a transmission belt 54 for transmission is sleeved on the output shaft 24 and the pulley 53. When the driving motor 23 drives the power roller 2 to rotate, the belt portion clamped by the upper clamping roller 21 moves to the old belt winding frame 1 and is wound, and the bottom belt portion moves and is sleeved on the belt conveyor under the cooperation of the power roller 2 and the lower clamping roller 22. During this process, the new belt winding frame 11 is in the process of continuously unwinding the new belt , and because the power roller 2 and the lower clamping roller 22 cooperate to clamp the bottom belt part, the belt part on the belt conveyor maintains a stable tension, and then the new belt winding frame 11 does not need to be equipped with additional power to maintain the tension of its sent-out belt part, avoiding additional drive. However, in this process, when the new belt is sent into the position between the power roller 2 and the lower clamping roller 22, it may cause wrinkles on the upper part or impurities to adhere to the surface under no tension, thereby affecting the transmission of the power roller 2 to the belt as a whole, and then the output shaft 24 is used to transmit the power to the pulley 53 through the transmission belt 54, and the pulley 53 drives the rotating shaft 5 at the bottom to rotate, and the rotating shaft 5 at the upper part is driven by the meshing of the gear 52, so that the silicone plates 51 on the two sets of rotating shafts 5 will sweep in the opposite direction of the belt movement to keep the belt with partial tension before entering the lower side of the power roller 2, and at the same time, it can sweep away impurities on its surface to ensure the stability of the overall movement.

[0038] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A belt conveyor belt replacement method, characterized in that: The following steps are involved: S1, setting an old belt winding frame (1) and a new belt winding frame (11), and winding a new belt on the new belt winding frame (11); S2, placing the old belt winding frame (1) and the new belt winding frame (11) on one side of the tail wheel of the belt conveyor in sequence, and keeping the two aligned with the center line of the belt movement direction; S3, cutting off the old belt from the tail wheel of the belt conveyor, fixing one end of the old belt to the old belt reel (1), and connecting the other end to the end of the new belt; S4, release the transmission connection between the belt reducer and the first wheel driving roller, so that the first wheel driving roller can rotate freely; S5, arranging a plurality of groups of power rollers (2) in the middle of the belt, and arranging upper clamping rollers (21) to cooperate with the power rollers (2) to clamp the belt portion located on the upper side thereof; S6, connecting the power roller (2) to the drive motor (23) externally, so that the drive motor (23) can drive the power roller (2) to rotate; S7, start the driving motor (23), drive the power roller (2) to rotate, so that the old belt is wound onto the old belt winding frame (1) and the new belt is unwound from the new belt winding frame (11) to replace the old belt and be mounted on the belt conveyor; S8. Cut off the connection between the new belt and the old belt, and connect the two ends of the new belt to form a closure.

2. The belt conveyor belt replacement method according to claim 1, characterized in that: In step S5, a lower clamping roller (22) is further provided on the side of the power roller (2) away from the upper clamping roller (21), and the upper clamping roller (21) and the lower clamping roller (22) cooperate with the power roller (2) to clamp the belts on both sides thereof.

3. A belt conveyor belt replacement device, used in the belt replacement method of claim 1 or 2, characterized in that: It comprises two sets of fixed frames (3) arranged in parallel, wherein one set of fixed frames (3) is provided with a mounting platform (31) for mounting a driving motor (23), and the driving motor (23) is drivingly connected to one end of a power roller (2); The two ends of the power roller (2), the upper clamping roller (21) and the lower clamping roller (22) are rotatably arranged on two sets of fixed frames (3), wherein the fixed frames (3) are also provided with adjustment components for adjusting the distance between the upper clamping roller (21) and the lower clamping roller (22) relative to the power roller (2).

4. The belt conveyor belt replacement device according to claim 3, characterized in that: A fixed transverse plate (32) is arranged on the fixed frame (3) at the side of the power roller (2) away from the mounting platform (31), and a bearing at one end of the power roller (2) away from the mounting platform (31) is arranged on the fixed transverse plate (32).

5. The belt conveyor belt replacement device according to claim 3, characterized in that: The adjustment assembly comprises two groups of movable horizontal plates (4) arranged in a fixed frame (3) and movable in upper and lower limit positions, and a bidirectional threaded screw (41) with bearings at both ends arranged on the fixed frame (3) and threadedly connected to the two groups of movable horizontal plates (4); The two ends of the upper clamping roller (21) and the lower clamping roller (22) are rotatably arranged on the movable transverse plate (4), and the two groups of movable transverse plates (4) move relatively and synchronously on the fixed frame (3).

6. The belt conveyor belt replacement device according to any one of claims 3 to 5, characterized in that: The driving motor (23) is connected to the power roller (2) via an output shaft (24), and a pulling component for tightening the belt portion moving toward the power roller (2) is also provided on the fixing frame (3).

7. The belt conveyor belt replacement device according to claim 6, characterized in that: The pulling assembly comprises two sets of rotating shafts (5) whose two ends are respectively bearing-mounted on two sets of fixing frames (3), silicone plates (51) evenly arranged on the rotating shafts (5), and two sets of gears (52) respectively arranged on one end of the two sets of fixing frames (3) close to the driving motor (23) and meshing with each other; The two groups of rotating shafts (5) are respectively located on the upper and lower sides of the belt portion moving toward the power roller (2); A pulley (53) is arranged on one of the gears (52), and a transmission belt (54) for transmission is sleeved on the output shaft (24) and the pulley (53), so that the silicone plates (51) on the two sets of rotating shafts (5) sweep in the opposite direction relative to the movement direction of the belt.

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