Automatic belt winding machine for belt conveyor

Abstract

The utility model provides an automatic winding machine for a belt conveyor, which comprises a base, a winding device, a guide device and a belt surface carding device, and the base is used for being placed on a plane; at least one part of the tape winding device is fixed on the base, and the tape winding device comprises a driving mechanism and a tape winding roller; at least one part of the guiding device is fixed to the base, the guiding device is far away from the belt conveyor relative to the belt winding device and comprises a guiding roller, the guiding roller is close to the base relative to the belt winding roller, and a shaft of the guiding roller is parallel to a shaft of the belt winding roller. One end of the original belt can bypass the guide roller in the direction away from the belt conveyor to be connected with the belt winding roller. The belt face combing device is close to the belt conveyor relative to the belt winding device and comprises a set of carrier rollers, and the two carrier rollers are arranged at intervals in the direction perpendicular to the base so that a belt can penetrate through the carrier rollers. The belt conveyor solves the problems that in the prior art, the belt surface replacement process of a belt conveyor is complicated, and the occupied area is large.

Description

Technical Field

[0001] The utility model relates to the field of coal preparation equipment maintenance, in particular to an automatic belt winding machine for a belt conveyor. Background Art

[0002] According to the actual situation of production and maintenance in coal preparation plants, there are about 200 belt conveyors in an average 10 million ton coal preparation plant. The maintenance and replacement of the belt surface is relatively frequent, and the space and conditions on the construction site are limited. At present, when replacing the belt, the old belt is often piled on the open space outside the factory building by pulling the belt surface with a loader or winch. After the replacement is completed, the old belt is rolled up with a crane, forklift, etc. The entire replacement process is inefficient and often occupies a large construction site, resulting in damage to the green belt in the factory area and environmental pollution.

[0003] That is to say, the belt conveyor in the prior art has the problems of complicated process and large space required for replacing the belt surface. Utility Model Content

[0004] The main purpose of the utility model is to provide an automatic belt winding machine for a belt conveyor, so as to solve the problems of complicated belt surface replacement process and large area occupied by the belt conveyor in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides an automatic belt winding machine for a belt conveyor, which is used to replace the belt of the belt conveyor, and includes: a base, which is used to be placed on a plane; a belt winding device, at least a part of which is fixed on the base, the belt winding device includes a driving mechanism and a belt winding roller, the belt winding roller is used to connect one end of the original belt, and the driving mechanism can drive the belt winding roller to wind the original belt; a guide device, at least a part of which is fixed on the base, the guide device is away from the belt conveyor relative to the belt winding device, the guide device includes a guide roller, the guide roller is arranged close to the base relative to the belt winding roller, the axis of the guide roller is parallel to the axis of the belt winding roller, and one end of the original belt can bypass the guide roller and connect to the belt winding roller in a direction away from the belt conveyor; a belt surface combing device, the belt surface combing device is close to the belt conveyor relative to the belt winding device, and the belt surface combing device includes a group of rollers, and the two rollers are arranged at intervals in a direction perpendicular to the base for the belt to pass through.

[0006] Furthermore, the driving mechanism includes a variable frequency motor, a brake and a reducer, the brake and the reducer are both connected to the output shaft of the variable frequency motor, the reducer is connected to the shaft of the winding drum, and the variable frequency motor is used to adjust the winding speed.

[0007] Furthermore, the belt winding device has an upper belt position, and the original belt is wound onto the belt winding drum from the upper belt position, and the upper belt position is located below the axis of the belt winding drum.

[0008] Furthermore, the tape winding device also includes a bracket, the bracket is fixed on the base, and the tape winding roller is detachably arranged on the bracket.

[0009] Furthermore, the bracket includes two support rod groups which are parallel and spaced apart, and both ends of the axis of the tape roller are respectively connected to the two support rod groups so that the axis of the tape roller is parallel to the base.

[0010] Furthermore, the driving mechanism is arranged on one side of the bracket, and the automatic winding machine also includes an auxiliary device, at least a part of which is arranged on the side of the bracket away from the driving mechanism, and the auxiliary device is used to pull one end of the original belt toward the winding roller.

[0011] Furthermore, the auxiliary device includes: a winch, which is arranged on the side of the bracket away from the driving mechanism, and the winch includes a traction rope, which is used to pull one end of the original belt; a guide wheel group, which is arranged on the side of the guide roller away from the winding roller, and the guide wheel group can change the direction of the traction rope.

[0012] Furthermore, the guide wheel group includes: a first guide wheel, which is arranged on one side of the winch; a second guide wheel, which is located between the driving mechanism and the auxiliary device, and the connecting line between the second guide wheel and the first guide wheel is parallel to the axis of the winding drum.

[0013] Furthermore, the auxiliary device also includes a connecting plate, one side of which is connected to the movable end of the traction rope, and the other side of the connecting plate is detachably connected to one end of the original belt.

[0014] Furthermore, the belt surface combing device also includes two spaced-apart limiting mechanisms, the interval between the two limiting mechanisms is greater than the width of the belt, the connecting line of the two limiting mechanisms is parallel to the axis of the winding drum, and the limiting mechanism is arranged away from the winding drum relative to the support roller.

[0015] Furthermore, the automatic tape reel also includes a tape clamp having a through hole for the belt to pass through, and the height of the through hole is adjustable so that the tape clamp can clamp the belt.

[0016] By applying the technical solution of the utility model, an automatic belt winding machine is used to replace the belt of a belt conveyor, comprising: a base, the base is used to be placed on a plane; a belt winding device, at least a part of the belt winding device is fixed on the base, the belt winding device comprises a driving mechanism and a belt winding roller, the belt winding roller is used to connect one end of an original belt, and the driving mechanism can drive the belt winding roller to wind up the original belt; a guide device, at least a part of the guide device is fixed on the base, the guide device is away from the belt conveyor relative to the belt winding device, the guide device comprises a guide roller, the guide roller is arranged close to the base relative to the belt winding roller, the axis of the guide roller and the axis of the belt winding roller are parallel to each other, and one end of the original belt can bypass the guide roller and connect to the belt winding roller in a direction away from the belt conveyor; a belt surface combing device, the belt surface combing device is close to the belt conveyor relative to the belt winding device, and the belt surface combing device comprises a group of rollers, and two rollers are arranged at intervals in a direction perpendicular to the base for the belt to pass through.

[0017] The present application provides an automatic belt winding machine for a belt conveyor. The belt conveyor is placed outside one end of the base of the automatic belt winding machine. The base is fixed on a plane to provide stability and prevent the automatic belt winding machine from moving or tipping over. The belt surface combing device includes two rollers arranged at intervals in a direction perpendicular to the base. The belt passes through the gap between the two rollers, thereby straightening the belt surface, avoiding stacking and winding, reducing the difficulty of belt winding, and can also effectively support the belt passing through, reducing the sagging and swinging of the belt. The belt after passing through the belt surface combing device is guided by a guide device and wound on the belt winding device. At least a part of the belt winding device and the guide device are fixed on the base. Compared with the belt winding device, the guide device is further away from the belt conveyor. The design of this relative position is conducive to reducing the friction and power loss of the belt winding device. The belt winding device can include a driving mechanism and a belt winding roller. The driving mechanism can drive the belt winding roller connected to one end of the original belt to automatically wind, which is convenient for winding the belt surface and thus saving space and improving winding efficiency. The guide device includes a guide roller. Compared with the belt winding roller, the guide roller is closer to the base. The guide roller and the winding roller are parallel to each other, which is beneficial to improving the transmission efficiency. Setting the guide rollers parallel to each other can also reduce the risk of errors and belt surface misalignment. After the original belt of the self-contained conveyor breaks, the original belt will first pass through the two rollers of the belt surface combing device of the automatic winding machine. In the direction away from the belt conveyor, one end of the original belt is first guided by the guide roller and then connected to the winding roller for winding. The present application realizes the automatic winding of the belt, avoiding the complicated replacement of belts in the prior art that leads to low efficiency, and at the same time avoids the stacking of old belts, that is, original belts, greatly reducing the space occupied by replacing belts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting 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 on the present invention. In the drawings:

[0019] Figure 1 The figure shows a front view of the automatic tape reel according to the first embodiment of the utility model;

[0020] Figure 2 Shows Figure 1 A top view of the automatic tape reel in FIG.

[0021] Figure 3 Shows Figure 1 A side view of the roller in FIG.

[0022] Figure 4 Shows Figure 1 A schematic diagram of an angle of the take-up drum in FIG.

[0023] Figure 5 Shows Figure 1 A schematic diagram of another angle of the take-up drum in FIG.

[0024] Figure 6 Shows Figure 1 Schematic diagram of the connection structure between the traction rope and the original belt;

[0025] Figure 7 Shows Figure 1 Schematic diagram of the connection structure between the original belt and the winding roller.

[0026] The above drawings include the following reference numerals:

[0027] 01. Original belt; 10. Base; 20. Belt winding device; 21. Driving mechanism; 211. Frequency conversion motor; 212. Brake; 213. Speed ​​reducer; 214. Pair of wheels; 22. Belt winding drum; 221. Belt winding core; 222. Channel steel; 223. Belt winding shaft; 23. Bracket; 231. Active coupling plate; 232. Support rod group; 24. Auxiliary device; 241. Winch; 242. Traction rope; 243. Guide wheel group; 244. First guide wheel; 245. Second guide wheel; 246. Connecting plate; 247. Belt hook; 30. Guide device; 31. Guide drum; 40. Belt surface combing device; 41. Roller; 411. Fixed roller; 412. Adjustable roller; 42. Limiting mechanism; 50. Tape clamp. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0030] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0031] In order to solve the problems in the prior art that the belt conveyor has a complicated belt surface replacement process and occupies a large area, the utility model provides an automatic belt winding machine for the belt conveyor.

[0032] like Figures 1 to 7 As shown, the utility model provides an automatic belt winding machine for a belt conveyor, which is used to replace the belt of the belt conveyor, and includes a base 10, a belt winding device 20, a guide device 30 and a belt surface combing device 40. The base 10 is used to be placed on a plane; at least a part of the belt winding device 20 is fixed on the base 10, and the belt winding device 20 includes a driving mechanism 21 and a belt winding roller 22. The belt winding roller 22 is used to connect one end of the original belt 01, and the driving mechanism 21 can drive the belt winding roller 22 to wind the original belt 01; at least a part of the guide device 30 is fixed on the base 10. The guide device 30 is away from the belt conveyor relative to the belt winding device 20, and the guide device 30 includes a guide roller 31. The guide roller 31 is arranged close to the base 10 relative to the belt winding roller 22. The axis of the guide roller 31 and the axis of the belt winding roller 22 are parallel to each other. One end of the original belt 01 can bypass the guide roller 31 and connect with the belt winding roller 22 in the direction away from the belt conveyor; the belt surface combing device 40 is close to the belt conveyor relative to the belt winding device 20, and the belt surface combing device 40 includes a group of rollers 41. The two rollers 41 are arranged at intervals in a direction perpendicular to the base 10 for the belt to pass through.

[0033] The present application provides an automatic belt winding machine for a belt conveyor. The belt conveyor is placed outside one end of the automatic belt winding machine base 10. The base 10 is fixed on a plane to provide stability and prevent the automatic belt winding machine from moving or tipping over. The belt surface combing device 40 includes two rollers 41 spaced apart in a direction perpendicular to the base 10. The belt passes through the gap between the two rollers 41, thereby straightening the belt surface, avoiding stacking and winding, reducing the difficulty of belt winding, and effectively supporting the passing belt to reduce the sagging and swinging of the belt. The belt after passing through the belt surface combing device 40 is guided by the guide device 30 and wound on the belt winding device 20. At least a portion of the belt winding device 20 and the guide device 30 are fixed on the base 10. Compared with the belt winding device 20, the guide device 30 is further away from the belt conveyor. The design of this relative position is conducive to reducing the friction and power loss of the belt winding device 20. The belt winding device 20 may include a driving mechanism 21 and a belt winding drum 22. The driving mechanism 21 may drive the belt winding drum 22 connected to one end of the original belt 01 to automatically wind, so as to facilitate the winding of the belt surface and save space and improve the winding efficiency. The guide device 30 includes a guide roller 31. Compared with the belt winding drum 22, the guide roller 31 is closer to the base 10. The guide roller 31 is parallel to the belt winding drum 22, which is conducive to improving the transmission efficiency. Setting the guide roller 31 parallel to the axis can also reduce the error and the risk of belt surface misalignment. After the original belt 01 is broken by the self-belt conveyor, the original belt 01 will first pass through the two rollers 41 of the belt surface combing device 40 of the automatic belt winding machine. In the direction away from the belt conveyor, one end of the original belt 01 is first guided by the guide roller 31 and then connected to the belt winding drum 22 for winding. The present application realizes the automatic winding of the belt, avoids the complicated replacement of the belt in the prior art resulting in low efficiency, and avoids the stacking of the old belt, that is, the original belt 01, which greatly reduces the space occupied by the replacement belt.

[0034] like Figure 2As shown, the driving mechanism 21 includes a variable frequency motor 211, a brake 212 and a reducer 213. The brake 212 and the reducer 213 are both connected to the output shaft of the variable frequency motor 211. The reducer 213 is connected to the shaft of the tape roller 22. The variable frequency motor 211 is used to adjust the speed of the tape roller 22. In other words, the tape roller 22 includes a variable frequency motor 211, a brake 212 and a reducer 213. The variable frequency motor 211 provides an output shaft, and the brake 212 and the reducer 213 are coaxially connected to the output shaft of the variable frequency motor 211. A pair of wheels 214 are also provided between the reducer 213 and the shaft of the tape roller 22 to assist in transmitting the power of the variable frequency motor 211 and the deceleration of the reducer 213. The variable frequency motor 211 controls the motor operation by adjusting the power supply frequency. As the diameter of the tape drum 22 increases, the running linear speed of the tape drawing also increases. The variable frequency motor 211 adjusts the speed of the tape during the whole process to control the speed of the tape winding, which can also reduce energy consumption and loss of the variable frequency motor 211. At the same time, the brake 212 is used to stop or control the movement of the tape drum 22 to avoid the variable frequency motor 211 from losing control in an emergency. The reducer 213 can reduce the speed of the variable frequency motor 211 through the shaft dynamic connection to meet the requirements of different tape drums 22 for working speed.

[0035] like Figures 1 to 3 As shown, the belt winding device 20 has an upper belt position, and the original belt 01 is wound onto the belt winding drum 22 from the upper belt position, and the upper belt position is located below the axis of the belt winding drum 22. In other words, the guide roller 31 is located on the side of the belt winding drum 22 away from the belt conveyor. After the original belt 01 passes through the belt surface combing device 40, it passes under the belt winding drum 22, bypasses the side of the guide roller 31 away from the belt conveyor, and then winds around the belt winding drum 22. Figure 1 Taking the automatic tape reel as an example, the original belt 01 is wound clockwise around the tape reel 22. The upper belt position is located below the axis of the tape reel 22, which effectively utilizes the conduction between the axes. This optimized design can effectively reduce friction resistance and improve transmission efficiency, thereby further improving the labor-saving effect of the tape reel 20.

[0036] like Figures 1 to 3 As shown, the belt winding device 20 further includes a bracket 23, which is fixed on the base 10, and the belt winding roller 22 is detachably arranged on the bracket 23. That is, the bracket 23 is arranged to support the belt winding roller 22, and the bracket 23 is fixedly connected to the base 10, and the bracket 23 and the base 10 form a stable whole, which is conducive to supporting the stable operation of the belt winding device 20 and providing a belt transmission space for the belt winding roller 22 and the guide roller 31. The belt winding roller 22 is detachably arranged on the bracket 23, which is convenient for the disassembly and assembly of the belt winding roller 22, and effectively improves the efficiency of belt arrangement.

[0037] like Figures 1 to 3As shown, the bracket 23 includes two parallel and spaced support rod groups 232, and the two ends of the axis of the tape roller 22 are respectively connected to the two support rod groups 232, so that the axis of the tape roller 22 is parallel to the base 10. In other words, the two parallel and spaced support rod groups 232 provide support and connection on both sides of the tape roller 22, and provide sufficient space for the tape winding process.

[0038] like Figure 2 As shown, the winding device 20 may further include a movable coupling disk 231, and one end of the shaft of the winding drum 22 is connected to the shaft of the reducer 213 through the movable coupling disk 231, so as to facilitate the disassembly of the winding drum 22 while controlling the axial direction of the winding drum 22 to be parallel to the base 10, thereby avoiding poor belt winding effect due to the inclination of the winding drum 22 and avoiding excessive loss of driving force of the driving mechanism 21.

[0039] like Figures 1 to 3 As shown, the driving mechanism 21 is arranged on one side of the bracket 23, and the automatic tape winding machine further comprises an auxiliary device 24, at least a part of which is arranged on the side of the bracket 23 away from the driving mechanism 21, and the auxiliary device 24 is used to pull one end of the original belt 01 toward the direction close to the tape winding drum 22. That is to say, along the axis direction of the tape winding drum 22, the two ends of the bracket 23 are the driving mechanism 21 and the auxiliary device 24, respectively, wherein the auxiliary device 24 is used to pull one end of the original belt 01 toward the tape winding drum 22, and the auxiliary device 24 is provided to provide traction force and traction track for the original belt 01.

[0040] like Figures 1 to 3 As shown, the auxiliary device 24 includes a winch 241 and a guide wheel group 243. The winch 241 is arranged on the side of the bracket 23 away from the driving mechanism 21. The winch 241 includes a traction rope 242, which is used to pull one end of the original belt 01; the guide wheel group 243 is arranged on the side of the guide roller 31 away from the belt roller 22, and the guide wheel group 243 can change the direction of the traction rope 242. In other words, the winch 241 is arranged on the side of the bracket 23 away from the driving mechanism 21, and the traction rope 242 passes through the guide wheel group 243 to pull the original belt 01 to move along a predetermined path. By setting the guide wheel group 243, the winch 241 can reduce friction and reduce energy loss.

[0041] like Figures 1 to 3As shown, the guide wheel group 243 includes a first guide wheel 244 and a second guide wheel 245. The first guide wheel 244 is arranged on one side of the winch 241; the second guide wheel 245 is located between the driving mechanism 21 and the auxiliary device 24, and the line connecting the second guide wheel 245 and the first guide wheel 244 is parallel to the axis of the belt roller 22. In other words, the guide wheel group 243 includes the first guide wheel 244 and the second guide wheel 245. The line connecting the second guide wheel 245 and the first guide wheel 244 is parallel to the axis of the belt roller 22. The first guide wheel 244 guides the traction rope 242 from the winch 241 to the side of the belt roller 22 away from the belt conveyor, that is, the rear of the belt roller 22. The second guide wheel 245 further guides the traction rope 242 to the rear of the belt roller 22, so that one end of the traction rope 242 pulls the original belt 01 from the rear of the belt roller 22, so that the original belt 01 can be connected to the belt roller 22 with minimal adjustment. The arrangement of the first guide wheel 244 and the second guide wheel 245 can provide the simplest, labor-saving and efficient path for traction of the original belt 01 to be connected to the belt reel 22. It can also disperse the load of the guide wheel group 243, reduce the traction force borne by a single guide wheel, and extend the service life of the guide wheel group 243.

[0042] like Figure 6 As shown, the auxiliary device 24 further includes a connecting plate 246, one side of which is connected to the movable end of the traction rope 242, and the other side of which is detachably connected to one end of the original belt 01. That is, the auxiliary device 24 is pulled by the winch 241, and the traction rope 242 is connected to the connecting plate 246 along the guide wheel group 243, and the other end of the connecting plate 246 is connected to one end of the original belt 01 through the belt hook 247. By providing the connecting plate 246, it is convenient to disassemble and assemble the original belt 01 and the traction rope 242, and the original belt 01 can evenly transmit the traction force.

[0043] like Figures 1 to 3 As shown, the belt combing device 40 also includes two spaced limiting mechanisms 42, the space between the two limiting mechanisms 42 is greater than the width of the belt, the line connecting the two limiting mechanisms 42 is parallel to the axis of the belt winding drum 22, and the limiting mechanism 42 is arranged away from the belt winding drum 22 relative to the roller 41. In other words, the original belt 01 will be limited by the two limiting mechanisms 42 before being pulled into the roller 41. The two limiting mechanisms 42 are spaced apart, respectively at the two ends of the axial direction of the roller 41, and the line connecting the two limiting mechanisms 42 is parallel to the axis of the roller 41. By setting the limiting mechanism 42, the original belt 01 can be ensured to enter the roller 41 without deviation, avoiding the winding failure caused by the tilt of the original belt 01.

[0044] like Figures 1 to 3As shown, the automatic tape reel also includes a tape clamp 50, which has a through hole for the belt to pass through, and the height of the through hole is adjustable so that the tape clamp 50 can clamp the belt. After the belt reel 22 winds the belt to a certain diameter, the reeling can be stopped, the belt can be fixed by the tape clamp 50, and the belt can be cut at an appropriate position so that the belt reel 22 and the wound belt can be removed. Along the pulling direction of the original belt 01, the tape clamp 50 is arranged after the belt surface combing device 40 to allow the belt to pass through and clamp the belt, which can play a role in fixing the belt and reducing the wear caused by the belt deviation.

[0045] The process of replacing the tape surface using the automatic tape reel of the present application is as follows:

[0046] 1. Pre-select a reasonable position to fix the automatic belt winding machine. After the power is turned off and all preparations are ready, after the belt is broken, connect and fix one end of the old belt (that is, the original belt 01 of this application) to the new belt surface prepared in advance according to the predetermined plan. Use a winch to pull the belt head of the other end of the old belt through the belt surface combing device 40 with a winch 241 to the designated location (the belt winding drum 22), and then use a quick fixing method to fix the belt head on the belt winding drum 22 (while fixing the belt head, adjust the gap of the belt surface combing device 40).

[0047] 2. After the motor is turned on, the belt surface is straightened by the belt surface combing device 40, and the belt is slowly wound normally through the guide roller 31. When the diameter of the winding roller 22 is rolled to a preset length, the belt is fixed with a tape clamp 50, and the belt is broken at an appropriate position (the length of the belt head ensures that it can be quickly fixed to the reel again). At this time, a crane is used to move the winding roller 22 and the wound belt to a transport vehicle, and finally transported to a designated location, and then the winding roller 22 is disassembled and reinstalled to start the next winding.

[0048] By using the automatic belt reel of the present application, the efficiency of replacing the belt surface is greatly improved, and the process of replacing the belt surface is safe, fast and efficient, achieving the purpose of standardized operation and efficient maintenance of belt conveyors and automatic belt reels, and solving the problems of difficulty in winding the belt surface of belt conveyors and narrow space for replacing the belt surface. The automatic belt reel of the present application removes and automatically reels the old belt while putting on the new belt, thus realizing the functions of pulling and reeling the belt at the same time. During the entire reeling process, the running speed of the belt surface is basically kept at a constant speed. Through professional automation equipment, the difficulties of belt reeling and recycling at the production site are solved, and finally the task of replacing the belt surface of the belt conveyor is achieved accurately, efficiently and safely.

[0049] Embodiment 1

[0050] like Figures 1 to 7As shown, the utility model provides an automatic belt winding machine for a belt conveyor, which is used to replace the belt of the belt conveyor, and includes a base 10, a belt winding device 20, a guide device 30 and a belt surface combing device 40. The base 10 is used to be placed on a plane; at least a part of the belt winding device 20 is fixed on the base 10, and the belt winding device 20 includes a driving mechanism 21 and a belt winding roller 22. The belt winding roller 22 is used to connect one end of the original belt 01, and the driving mechanism 21 can drive the belt winding roller 22 to wind the original belt 01; at least a part of the guide device 30 is fixed on the base 10. The guide device 30 is away from the belt conveyor relative to the belt winding device 20, and the guide device 30 includes a guide roller 31. The guide roller 31 is arranged close to the base 10 relative to the belt winding roller 22. The axis of the guide roller 31 and the axis of the belt winding roller 22 are parallel to each other. One end of the original belt 01 can bypass the guide roller 31 and connect with the belt winding roller 22 in the direction away from the belt conveyor; the belt surface combing device 40 is close to the belt conveyor relative to the belt winding device 20, and the belt surface combing device 40 includes a group of rollers 41. The two rollers 41 are arranged at intervals in a direction perpendicular to the base 10 for the belt to pass through.

[0051] like Figures 4 to 7 As shown, the belt roller 22 includes a belt core 221, a channel steel 222 and a belt shaft 223. The belt core 221 provides support and winding effects for the belt, the channel steel 222 is used to flexibly connect and fix the belt, and the belt shaft 223 is driven by the variable frequency motor 211 to support and guide the belt core 221 to wind the belt. After the original belt 01 is fixed with the belt hook 247, the belt hook 247 can be snap-connected with the groove of the channel steel 222 to achieve the effect of fixing the original belt 01 to the belt roller 22.

[0052] like Figure 1 As shown, the support rod group 232 includes a plurality of columns supported at intervals on the base 10, and the other ends of the plurality of columns are commonly supported on one side of the axis of the take-up drum 22, providing a stable support similar to a triangle.

[0053] Optionally, the variable frequency motor 211 is selected as ACS600, with an applicable range of 2.2-110kW and a voltage of 660V, and is used in conjunction with a low-speed, high-torque reducer 213.

[0054] Optionally, the reducer 213 is a K187DV180L4 / BMG / HR type reducer according to the standard, and its nominal input power P N The speed ratio is 21kW, i=112.6, n=1500r / min, and the rated output torque is 50kN·m. N The expression is:

[0055] P N =22kW>21kW

[0056] It should be noted that the selection of brake 212 should be determined according to the use requirements and working conditions. When selecting, the working nature and conditions, reasonable braking torque, and the space size of the installation site should generally be considered. According to the results of previous calculations, the torque of the high-speed shaft is 285.13N·m. Combined with the actual situation and according to the brake 212 standard, the electric hydraulic block brake is selected as YWZ400 / 90, with a rated braking torque of 1120N·m.

[0057] It should be noted that the movable coupling 231 is selected based on the load conditions, calculated torque, shaft end diameter, and operating speed. According to the actual situation, the output end of the reducer 213 is 50kN·m, so the ZL12 elastic pin-tooth movable coupling is selected:

[0058] Active end: Y-type shaft hole, B-type keyway, d1=160mm, L=302mm;

[0059] Driven end: Y-type shaft hole, B-type keyway, d2=160mm, L=302mm.

[0060] Optionally, the guide wheel group 243 is arranged on the base 10, and the traction rope 242 is led out from the winch 241 and along the edge of the base 10, and according to the arrangement of the guide wheel group 243, one end of the original belt 01 is pulled along a predetermined path close to the belt winding drum 22, so as to connect the original belt 01 to the belt winding drum 22. The first guide wheel 244 is connected to the base 10, and the second guide wheel 245 is located at one end of the base 10 close to the guide drum 31. The winch 241 drives the traction rope 242 along the second guide wheel 245 to form a traction force perpendicular to the axis of the guide drum 31.

[0061] like Figure 3 As shown, the rollers 41 are respectively a fixed roller 411 and an adjustable roller 412. The fixed roller 411 is closer to the base 10 than the adjustable roller 412. This arrangement can ensure flexible adjustment of the roller 41 and ensure that the final passing gap of the belt is reasonable.

[0062] Among them, taking the 823 belt conveyor as an example, the conveying distance of the belt conveyor is L = 348m, the belt width B = 1800mm, the belt conveyor inclination angle α = 11°, the spacing of the adjustable rollers 412 = 1200mm, the spacing of the fixed rollers 411 = 3000mm, the groove angle λ of the roller 41 = 35°, the roller diameter Φ of the roller 41 = 159mm, and the forward inclination angle ε of the roller 41 = 1°25′. The belt speed of the automatic belt winding machine is v = 0.3m / s, and the diameter of the belt winding drum 22 of the automatic belt winding machine when it is not wound is Dmin = 400mm, and the maximum diameter Dmax = 2000mm when the drum is fully wound.

[0063] Furthermore, the components of the automatic tape reel are calculated:

[0064] 1. Circular driving force

[0065] (1) Calculation formula

[0066] The circumferential driving force F required to drive the belt roller 22 U It is the sum of all resistances of the belt conveyor. For belt conveyors with a length greater than 80m, the additional resistance F N It is obviously smaller than the main resistance and can be calculated in a simple way. For this purpose, the coefficient C is introduced for simplified calculation. The formula is:

[0067] F U =C·F H +F S1 +F S2 +F St

[0068] The units of the parameters in the formula are: main resistance is N; special main resistance is N; special additional resistance is N; inclined resistance is N.

[0069] The coefficient related to the length of the belt conveyor is calculated as follows when the length of the belt conveyor is greater than 80m:

[0070]

[0071] In the formula, the additional length is generally between 70m and 100m; C is the coefficient, not less than 1.02.

[0072] (2) Main obstacles

[0073] The main resistance F of the belt conveyor H It is the sum of the resistance generated by the movement of the belt and the rotation of the supporting rollers of the carrying branch and the return branch. It can be calculated by the following formula:

[0074] F H =fLg[q RO +q RU +(2q B +q G )cosα]

[0075] Where, f is the simulated friction coefficient, which is determined according to working conditions and manufacturing and installation level; L is the length of the belt conveyor, in meters; g is the acceleration of gravity, g = 9.81m / s 2 ≈10m / s 2 ;q RO To carry the weight of the rotating part of the branch roller group per meter, kg / m, use the following formula:

[0076]

[0077] Among them, G1 is the mass of the rotating part of each group of rollers in the load-bearing branch, in kg; a U is the spacing between the bearing branch rollers, in m; q B The mass of the rotating part of the return branch roller group per meter in length, in kg / m; calculated using the following formula:

[0078]

[0079] Among them, G2 is the mass of the rotating part of each set of rollers in the return branch, in kg; a U is the return branch roller spacing, in m; q B is the belt mass per meter, in kg / m; q G is the mass of material transported per meter, in kg / m; α is the inclination angle of the belt conveyor, in (°).

[0080] By We can get:

[0081] By looking up the table, we can get q B =46.98kg / m;q G =0kg / m;

[0082] So F H =fLg[q RO +q RU +(2q B +q G )cosα]=0.03×360×10[60+20.3+(2×46.98+0)con11°=78×(54.3+93.96×0.96)=18443.6N.

[0083] (3) Main special resistance

[0084] Main special resistance F SI Including the friction resistance F of the roller tilting forward ε and the friction resistance F between the conveyed material and the guide chute baffle gl The two parts are calculated as follows:

[0085] F S1 =F ε +F gl

[0086] When adjusting the forward tilt of three equal-length rollers:

[0087] F ε =C ε μ0L ε (q B +q G )gcosαsinε

[0088] In the formula, C ε is the groove coefficient, which is 0.4 at a groove angle of 30°, 0.43 at a groove angle of 35°, and 0.5 at a groove angle of 45°; μ0 is the friction coefficient between the roller and the belt, which is generally taken as 0.3-0.4; L ε is the length of the conveyor equipped with forward-tilted rollers, in meters; ε is the forward-tilt angle of the rollers, in degrees.

[0089] By formula F ε =C ε μ0L ε (q B +q G )gcosαsinε, we can get:

[0090] F ε =C ε μ0L ε (q B +q G )gcosαsinε=0.43×0.4×348(46.98+0)×10×cos11°×sin1°25′=28120.3×0.98×0.03=826.7N, F gl =0;

[0091] By formula F S1 =F ε +F gl We can get: F S1 =F ε +F gl =826.7+0=826.7N.

[0092] (4) Additional special resistance

[0093] Additional special resistance F S2 Including the friction resistance F of the belt conveyor cleaner r , calculated as follows:

[0094] F S2 =n3·F r

[0095] F r =A·p·μ3

[0096] Where n3 is the number of cleaners, including head cleaners and empty section cleaners; A is the contact area between a cleaner and the conveyor belt, in m 2 ; P is the pressure between the cleaner and the belt, in N / ㎡, usually 3×10 4 -10×10 4N / ㎡; μ3 is the friction coefficient between the cleaner and the belt, which is generally taken as 0.5~0.7.

[0097] By formula F r =A·p·μ3, we can get: F r =A·p·μ3=0.05×10×10 4 ×0.6=3000N;F S2 =n3·F r =2×3000=6000N.

[0098] Therefore, the circumferential driving force F required to drive the belt roller 22 is U for:

[0099] By We can get:

[0100] By formula F U =C·F H +F S1 +F S2 +F St We can get: F U =C·F H +F S1 +F S2 +F St =1.29×18443.6+826.7+6000+0=30618.9N.

[0101] According to the actual situation, the circumferential driving force F on the driving belt roller 22 U Select 50000N.

[0102] 2. Drive belt roller 22 axis power

[0103] Drive belt drum 22 shaft power P A Calculate as follows:

[0104]

[0105] The maximum torque M of the drive belt drum 22 max Calculate as follows:

[0106]

[0107] Wherein, D is the diameter of the driving belt roller 22, in mm.

[0108] By Available

[0109] By We can get:

[0110] 3. Calculation of backstop force

[0111] For inclined belt conveyors, the backstop force calculation should generally be performed. To prevent reverse rotation, the backstop force F required on the drive belt roller 22 is L The following formula can be used for calculation:

[0112]

[0113] For safety reasons, the force to prevent reverse rotation is multiplied by a factor of 0.8. The reverse torque M acting on the drive belt drum 22 shaft L 'for:

[0114]

[0115] Wherein, D is the diameter of the driving belt roller 22, in mm.

[0116] The backstop torque M required by the backstop L for:

[0117]

[0118] Wherein, i is the speed ratio from the drive belt roller 22 shaft to the speed reducer 213 mounting backstop shaft; η L The transmission efficiency of the backstop shaft installed from the drive belt drum 22 shaft to the reducer 213.

[0119] By We can get:

[0120]

[0121] By We can get:

[0122] By We can get:

[0123] 4. Variable frequency motor 211 power

[0124] Frequency conversion motor 211 power P M , calculated as follows:

[0125]

[0126] η=η1·η2

[0127] Wherein, η is the transmission efficiency, which is generally selected between 0.85 and 0.95; η1 is the efficiency of the movable coupling plate 231; each mechanical movable coupling plate 231: η1 = 0.98; hydraulic coupling: η1 = 0.96; η2 is the transmission efficiency of the reducer, which is calculated based on the transmission efficiency of each gear stage being 0.98; two-stage reducer: η2 = (0.98 × 0.98) = 0.96; three-stage reducer: η2 = (0.98 × 0.98 × 0.98) = 0.94; η′ is the voltage drop coefficient, which is generally taken as 0.90 to 0.95; η″ is the multi-motor drive power imbalance coefficient, which is generally taken as 0.90 to 0.95. When driven by a single motor, η″ = 1.

[0128] From the formula η = η1 · η2, we can get: η = η1 · η2 = 0.98 × 0.98 × 0.94 = 0.90;

[0129]

[0130] According to the calculated P M According to the actual situation, the motor model is selected as DV180L4 according to the principle of larger rather than smaller, with N=22kW and motor speed of 1500r / min.

[0131] 5. Determine the speed of the belt roller 22

[0132] When the belt speed v=0.3m / s is guaranteed, the drum speed is:

[0133]

[0134] According to the actual situation, the rotation speed of the winding drum 22 is selected to be 14.33 r / min.

[0135] 6. Selection of reducer 213

[0136] When selecting a hardened gear reducer, the load-bearing capacity must be calculated through mechanical strength, thermal effect, and two power calculations. The selection steps are as follows:

[0137] (1) Determine the transmission ratio of the reducer 213

[0138]

[0139] Where n1 is the input speed, unit is r / min; n2 is the output speed, unit is r / min.

[0140] So by the formula have to:

[0141] According to the work requirements, SEW reducer 213 is selected, and it is initially determined to be K type.

[0142] (2) Determine the specifications of reducer 213

[0143] Determine the nominal center distance of reducer 213 according to the nominal power value:

[0144] P N ≥P e ·f

[0145] Where P N is the nominal input power of reducer 213, in kW; P e is the power required by the working machine connected to the reducer 213, in kW; f is the working machine operating coefficient.

[0146] According to the standard, the load characteristic is M, f = 1.4, then P e f = 15 × 1.4 = 21 kW.

[0147] According to the standard, K187DV180L4 / BMG / HR type reducer 213 is selected, and its nominal input power P N It is 21kW, speed ratio i=112.6, n=1500r / min, and rated output torque is 50kN·m.

[0148] P N =22kW>21kW

[0149] 7. Selection of movable coupling plate 231

[0150] The movable coupling plate 231 is selected according to the load condition, calculated torque, shaft end diameter, and operating speed. Calculated torque T C It is found by the following formula:

[0151]

[0152] Where, T n is the nominal torque, in N·m; T C is the calculated torque, in N·m; T is the theoretical torque, in N·m; P W is the driving power in kW; n is the operating speed in r / min; K is the operating coefficient.

[0153] By have to: T n =63000N·m; so T C =27856.94≤T n =63000N·m.

[0154] According to the actual situation, the output terminal T of the reducer 213 C=50kN·m, so choose ZL12 elastic pin-tooth movable coupling:

[0155] Active end: Y-type shaft hole, B-type keyway, d1=160mm, L=302mm;

[0156] Driven end: Y-type shaft hole, B-type keyway, d2=160mm, L=302mm.

[0157] 8. Selection of brake 212

[0158] The selection of brake 212 should be determined according to the use requirements and working conditions. When selecting, the working nature and conditions, reasonable braking torque, and the space size of the installation site should generally be considered. According to the results of previous calculations, the torque of the high-speed shaft is 285.13N·m. Combined with the actual situation and according to the brake 212 standard, the electric hydraulic block brake 212 is selected as YWZ400 / 90, with a rated braking torque of 1120N·m, that is:

[0159] YWZ400 / 90 brake JB / ZQ 4388-1997

[0160] Among them, YWZ is the electric hydraulic push rod brake; 400 is the brake wheel diameter, in mm; 90 means the thrust of the electric hydraulic pusher is 900N.

[0161] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0162] 1. The automatic belt winding machine can simultaneously carry out the winding and unwinding of the original belt 01 and the new belt, which can maximize the efficiency and speed of belt replacement, shorten the impact of equipment failure on production, ensure production and transportation, and generate great economic benefits.

[0163] 2. The automatic belt winding machine improves the safety factor of belt replacement, reduces personnel input, and enables safe and orderly production, thereby saving funds, tapping potential, and improving efficiency.

[0164] 3. The belt combing device 40 includes two rollers 41 spaced apart and perpendicular to the direction of the base 10, which can effectively support the belt passing through and reduce the sagging and swinging of the belt.

[0165] 4. The guide device 30 includes a guide roller 31. Compared with the belt winding roller 22, the guide roller 31 is closer to the base 10. The guide roller 31 is parallel to the belt winding roller 22, which is beneficial to improve the transmission efficiency. Setting the guide roller 31 parallel to the axis can also reduce the error and the risk of belt surface misalignment.

[0166] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0167] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0168] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0169] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An automatic belt winding machine for a belt conveyor, characterized in that: The automatic belt winding machine is used to replace the belt of a belt conveyor, and comprises: A base (10), wherein the base (10) is used to be placed on a plane; A belt winding device (20), at least a portion of which is fixed on the base (10), the belt winding device (20) comprising a driving mechanism (21) and a belt winding roller (22), the belt winding roller (22) being used to connect one end of the original belt (01), and the driving mechanism (21) being able to drive the belt winding roller (22) to wind up the original belt (01); A guide device (30), at least a part of which is fixed on the base (10), the guide device (30) is away from the belt conveyor relative to the belt winding device (20), the guide device (30) comprises a guide roller (31), the guide roller (31) is arranged close to the base (10) relative to the belt winding roller (22), the axis of the guide roller (31) and the axis of the belt winding roller (22) are parallel to each other, and one end of the original belt (01) can bypass the guide roller (31) in a direction away from the belt conveyor and connect with the belt winding roller (22); A belt surface combing device (40), wherein the belt surface combing device (40) is close to the belt conveyor relative to the belt winding device (20), and the belt surface combing device (40) comprises a group of rollers (41), and two of the rollers (41) are spaced apart in a direction perpendicular to the base (10) to allow the belt to pass through.

2. The automatic tape reel according to claim 1, characterized in that: The driving mechanism (21) comprises a variable frequency motor (211), a brake (212) and a reducer (213); the brake (212) and the reducer (213) are both connected to the output shaft of the variable frequency motor (211); the reducer (213) is connected to the shaft of the tape winding drum (22); and the variable frequency motor (211) is used to adjust the tape winding speed.

3. The automatic tape reel according to claim 1, characterized in that: The belt winding device (20) has an upper belt position, and the original belt (01) is wound onto the belt winding roller (22) from the upper belt position, and the upper belt position is located below the axis of the belt winding roller (22).

4. The automatic tape reel according to claim 1, characterized in that: The tape winding device (20) further comprises a bracket (23), wherein the bracket (23) is fixed on the base (10), and the tape winding roller (22) is detachably arranged on the bracket (23).

5. The automatic tape reel according to claim 4, characterized in that: The bracket (23) comprises two support rod groups (232) which are arranged in parallel and at intervals, and the two ends of the axis of the tape winding roller (22) are respectively connected to the two support rod groups (232) so that the axis of the tape winding roller (22) is parallel to the base (10).

6. The automatic tape reel according to claim 4, characterized in that: The driving mechanism (21) is arranged on one side of the bracket (23), and the automatic winding machine also includes an auxiliary device (24), at least a part of which is arranged on a side of the bracket (23) away from the driving mechanism (21), and the auxiliary device (24) is used to pull one end of the original belt (01) in a direction close to the winding roller (22).

7. The automatic tape reel according to claim 6, characterized in that: The auxiliary device (24) comprises: A winch (241), wherein the winch (241) is arranged on a side of the bracket (23) away from the driving mechanism (21), and the winch (241) comprises a traction rope (242), and the traction rope (242) is used to pull one end of the original belt (01); A guide wheel group (243), wherein the guide wheel group (243) is arranged on a side of the guide roller (31) away from the belt winding roller (22), and the guide wheel group (243) can change the direction of the traction rope (242).

8. The automatic tape reel according to claim 7, characterized in that: The guide wheel set (243) comprises: A first guide wheel (244), wherein the first guide wheel (244) is arranged on one side of the winch (241); A second guide wheel (245), the second guide wheel (245) is located between the driving mechanism (21) and the auxiliary device (24), and a line connecting the second guide wheel (245) and the first guide wheel (244) is parallel to the axis of the winding drum (22).

9. The automatic tape reel according to claim 7, characterized in that: The auxiliary device (24) also includes a connecting plate (246), one side of which is connected to the movable end of the traction rope (242), and the other side of which is detachably connected to one end of the original belt (01).

10. The automatic tape reel according to any one of claims 1 to 9, characterized in that: The belt surface combing device (40) further comprises two spaced-apart limiting mechanisms (42), the space between the two limiting mechanisms (42) being greater than the width of the belt, the connecting line of the two limiting mechanisms (42) being parallel to the axis of the belt winding roller (22), and the limiting mechanism (42) being arranged away from the belt winding roller (22) relative to the support roller (41).

11. The automatic tape reel according to any one of claims 1 to 9, characterized in that: The automatic tape reel also includes a tape clamp (50), which has a through hole for the belt to pass through, and the height of the through hole is adjustable so that the tape clamp (50) can clamp the belt.

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