An injury prevention rubber conveyor belt pulling device

Abstract

The application provides a damage-preventing rubber conveying belt traction device and relates to the field of conveying belts. The damage-preventing rubber conveying belt traction device comprises a driving pulley, the driving pulley comprises two groups of alternately distributed rotating parts, the two groups of rotating parts are sleeved on the inner ring of the conveying belt, each group of rotating parts corresponds to a power source for driving the rotating part to rotate, and the rotating part comprises a rotating wheel for tensioning, and the middle part of the rotating wheel is provided with a gear ring. The damage-preventing rubber conveying belt traction device can make the power output by a single power source uniformly act on the surface of the conveying belt by arranging the power sources on the two sides of the conveying belt and alternately and staggeredly arranging the rotating parts for driving the conveying belt to move and mutually abutting, so that the conveying belt can be stably conveyed by the fast-rotating part idling when there is a difference in the rotating speeds of the two power sources, and the conveying belt is prevented from being unevenly torn when the conveying belt is driven from the two sides and the rotating speed difference exists.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of conveying belt, in particular to a kind of anti-injury rubber conveying belt traction device. BACKGROUND

[0002] In large conveying system, large conveyor belt can transport heavy goods (such as bagged agricultural products) or long distance continuous conveying, single motor may be overloaded due to insufficient power. Two servo motors can output torque cooperatively. Two servo motors are used to drive the drums on both sides, and the deviation amount is monitored in real time by PLC (such as laser sensor detecting edge position). When the deviation amount is greater than 30mm, the speed of the motor on the deviation side is automatically increased (the difference is less than or equal to 5%), and the deviation is corrected by differential force.

[0003] The existing patent CN116198945B discloses a belt conveyor deviation monitoring and correction device and method. Rotational variable transducer sensors are installed on the left and right drums to accurately sense the rotational state of the left and right drums. When the belt is normally transmitted, the left and right clutches are in a separated state, and the belt can drive the left and right drums to rotate synchronously. The computer receives the data feedback by the left and right rotational variable transducer sensors in real time, obtains the rotational speed and angle of the left and right drums, and judges whether the deviation occurs according to whether the absolute value of the difference between the two is greater than a threshold value. If it is judged that the deviation occurs, the computer can quickly control the left and right adjusting motors to start and the left and right clutches to be in a combined state. At this time, by changing the rotational speed difference between the left and right drums and the belt, the adhesion between the left and right drums and the belt is controlled, a torque is given to the belt to correct the deviation and return to normal. The whole correction process does not need to stop adjustment and manual operation, and can realize automatic deviation monitoring and correction. However, in the technical scheme, the left and right drums correspond to the left and right sides of the belt respectively, and when the two drums rotate at different speeds, the moving speed of the two sides of the belt is different, and the belt is divided into two parts under stress, so that tearing may occur at the connection between the two drums. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides an anti-injury rubber conveying belt traction device to solve the problems raised in the above background.

[0005] In order to achieve the above object, the present application is realized by the following technical scheme: A kind of anti-injury rubber conveyor belt traction device, including conveyor belt, driving pulley and driven pulley, conveyor belt is arranged on the outer surface of driving pulley and driven pulley, the driving pulley includes two groups of rotation portion of alternate distribution, two groups of rotation portion sleeve joint in the inner ring of conveyor belt, each group of rotation portion corresponds a group of power source for driving the rotation of the rotation portion, the rotation portion includes the rotation wheel for tensioning, the middle part of rotation wheel is provided with gear ring, power source includes motor, the output end of motor is fixedly installed with center shaft, the outer surface of center shaft is installed with gear that rotates synchronously with center shaft, gear is engaged with gear ring, two motors are located in the inner ring of conveyor belt, and are set in up and down staggered.

[0006] Preferably, the rotation wheel is divided into left and right two, the gear ring is arranged in the middle part of the two rotation wheels and is concentric with the rotation wheel, and the gear ring and the two rotation wheels are fixedly connected by a plurality of screw rods arranged in a ring around the center of the gear ring.

[0007] Preferably, the end of the rotation wheel away from the gear ring on one side is provided with an annular protrusion, and the end of the rotation wheel away from the gear ring on the other side is provided with an annular groove, and the annular protrusion is inserted into the inside of the adjacent annular groove.

[0008] Preferably, the middle part of the rotation portion is provided with a through hole, and the through holes of the two groups of rotation portions are sleeved with the same support shaft.

[0009] Preferably, the gear ring is provided with a groove on both sides of the outer ring, the gear teeth of the gear ring are arranged on the protruding part between the two grooves, the outer side of the gear ring is provided with a protective shell wrapping the outer surface of the gear ring and the power source, the protective shell is arranged in the inside of the groove, the protective shell is divided into two parts, and the protective shell moves synchronously with the support shaft.

[0010] Preferably, the lower side of the conveyor belt is provided with a support frame supporting the driving pulley and the driven pulley, the support shaft and the power source are connected through a fixed frame, the fixed frame is slidingly connected to the upper side of the support frame, and the upper sides of the support frame are fixedly installed with an adjusting mechanism driving the relative movement of the fixed frame and the support frame.

[0011] Preferably, the end of the outermost two rotation wheels away from the gear ring is fixedly installed with a blocking ring, the outer surface of the support shaft is inserted with a support sleeve, the end of the support sleeve close to the blocking ring is provided with a half through hole, the inside of the half through hole is provided with a compression spring, the free end of the compression spring is provided with a ball, and the ball is in contact with the blocking ring.

[0012] Preferably, the diameter of the through hole of the gear ring is greater than the diameter of the through hole of the rotation wheel, the inside of the through hole of the rotation wheel is sleeved with a bearing, and the bearing is sleeved on the outer surface of the support shaft.

[0013] Preferably, the adjustment mechanism includes telescopic sleeves symmetrically arranged on both sides of the fixed frame, with the fixed end of the telescopic sleeve fixedly connected to the bracket and the free end of the telescopic sleeve in contact with the fixed frame.

[0014] Preferably, the adjustment mechanism includes a motor fixedly mounted on the outer surface of the bracket, a square shaft fixedly mounted on the output end of the motor, a sleeve sleeved on the outer surface of the square shaft, a threaded groove on the outer surface of the sleeve, a threaded sleeve meshing with the threaded groove fixedly mounted on the outer surface of the bracket, a ball head fixedly mounted on the end face of the sleeve, and a semi-enclosed groove for accommodating the ball head opened at one end of the fixing frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This anti-damage rubber conveyor belt traction device, by setting the power source on both sides of the conveyor belt and making the rotating parts used to drive the conveyor belt move alternately staggered and closely fitted to each other, can make the power output of a single power source act evenly on the surface of the conveyor belt. Thus, when there is a difference in the rotational speed of the two power sources, the fast rotating part idles to keep the conveyor belt stable and avoid the conveyor belt being unevenly torn when the speed difference occurs when the conveyor belt is driven from both sides.

[0017] 2. This anti-damage rubber conveyor belt traction device has a rotating part with spaced distribution. When the load is light, the power source on one side can be started to drive the conveyor belt to rotate, thus providing multiple driving modes. This solves the problem that in the existing technology, the power sources on both sides still need to work at the same time when the load is low.

[0018] 3. This anti-damage rubber conveyor belt traction device has a bracket supporting the drive pulley and driven pulley below the conveyor belt. The support shaft and the power source are connected on both sides by a fixed frame. The fixed frame is slidably connected above the bracket. Adjustment mechanisms that drive the fixed frame to move relative to the bracket are fixedly installed on both sides above the bracket. By connecting the drive pulley and the power source together, the conveyor belt correction method driven by the double roller can be adjusted to the traditional method of adjusting and leveling the drive pulley on both sides. This setting can make correction easier.

[0019] 4. In this anti-damage rubber conveyor belt traction device, the outermost two rotating wheels are fixedly equipped with retaining rings at the ends away from the toothed rings. A support sleeve is inserted into the outer surface of the support shaft. A semi-through hole is provided at the end of the support sleeve near the retaining ring. A compression spring is provided inside the semi-through hole. A ball is provided at the free end of the compression spring. The ball contacts the retaining ring. This arrangement can restrict the rotating wheels to rotate at a specified position on the support shaft. After the ball wears due to contact, the compression spring will compensate for the wear.

[0020] 5. The anti-injury rubber conveyor belt traction device, the rotating wheels are divided into left and right two, the gear ring is arranged in the middle of the two rotating wheels and is concentric with the rotating wheels, the gear ring and the two rotating wheels are fixedly connected through a plurality of screw rods which are annularly distributed with the center of the gear ring as the center, and through the arrangement, the rotating part can be conveniently installed and spliced.

[0021] 6. The anti-injury rubber conveyor belt traction device, the diameter of the gear is smaller than that of the gear ring, so that the transmission part is a speed reduction transmission, the driving mode of the two rollers between the relative power sources is driving, when the same speed of the conveyor belt is reached, the power source in the technical scheme can rotate at a faster speed, so that the influence of the difference between the two power sources on the conveyor belt can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic view of the application;

[0023] Figure 2 It is a telescopic sleeve connection schematic view of the application;

[0024] Figure 3 It is a sleeve connection schematic view of the application;

[0025] Figure 4 It is a gear ring connection schematic view of the application;

[0026] Figure 5 It is a rotating wheel connection schematic view of the application;

[0027] Figure 6 It is a protective shell schematic view of the application;

[0028] Figure 7 It is a support sleeve connection schematic view of the application.

[0029] In the figure: 1, conveyor belt; 2, driving pulley; 3, driven pulley; 21, rotating part; 24, power source; 211, rotating wheel; 212, gear ring; 241, motor; 242, center shaft; 243, gear; 213, screw rod; 214, annular protrusion; 215, annular groove; 216, through hole; 217, support shaft; 218, groove; 8, protective shell; 4, support; 5, fixing frame; 7, adjusting mechanism; 219, stop ring; 220, support sleeve; 224, half through hole; 221, compression spring; 222, ball; 223, bearing; 701, telescopic sleeve; 702, motor; 703, square shaft; 704, sleeve; 705, threaded groove; 706, threaded sleeve; 707, ball head; 708, half wrapping groove. DETAILED DESCRIPTION

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0031] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0032] like Figures 1-7 As shown, a damage-resistant rubber conveyor belt traction device includes a conveyor belt 1, a driving pulley 2, and a driven pulley 3. The conveyor belt 1 is disposed on the outer surface of the driving pulley 2 and the driven pulley 3. The driving pulley 2 includes two sets of alternately distributed rotating parts 21, which are sleeved on the inner ring of the conveyor belt 1. Each set of rotating parts 21 corresponds to a power source 24 that drives the rotating part 21 to rotate. The rotating part 21 includes a rotating wheel 211 for tensioning, and a toothed ring 212 is provided in the middle of the rotating wheel 211. The power source 24 includes a motor 241, and a central shaft 242 is fixedly installed at the output end of the motor 241. A toothed ring 212 is installed on the outer surface of the central shaft 242. The gear 243, which rotates synchronously with the shaft 242, meshes with the gear ring 212. Both motors 241 are located on the inner ring of the conveyor belt 1 and are staggered vertically. By placing the power source 24 on both sides of the conveyor belt 1 and making the rotating parts 21 used to drive the conveyor belt 1 to move alternately staggered and close to each other, the power output by a single power source 24 can be evenly applied to the surface of the conveyor belt 1. Thus, when there is a difference in the rotational speed of the two power sources 24, the fast-rotating part can idle to keep the conveyor belt 1 stable and avoid uneven tearing of the conveyor belt 1 when there is a difference in the rotational speed when the conveyor belt 1 is driven from both sides.

[0033] Meanwhile, the rotating parts 21 with interval distribution can start the power source 24 on one side to drive the conveyor belt 1 to rotate when the load is light, thereby providing multiple driving modes and solving the problem that the power sources 24 on both sides still need to work at the same time when the load is low in the prior art.

[0034] The rotating wheels 211 are divided into two left and right parts, the gear ring 212 is arranged at the middle part of the two rotating wheels 211 and is concentric with the rotating wheels 211, the gear ring 212 and the two rotating wheels 211 are fixedly connected through a plurality of screw rods 213 arranged in a ring shape with the center of the gear ring 212 as the center, and through such arrangement, the rotating part 21 can be conveniently installed and spliced.

[0035] The end of the rotating wheel 211 on one side away from the gear ring 212 is provided with an annular protrusion 214, and the end of the rotating wheel 211 on the other side away from the gear ring 212 is provided with an annular groove 215, the annular protrusion 214 is inserted into the adjacent annular groove 215, and through the arrangement of the annular protrusion 214 and the annular groove 215, the two adjacent rotating wheels 211 can be conveniently connected.

[0036] The middle part of the rotating part 21 is provided with a through hole 216, and the through holes 216 of the two groups of rotating parts 21 are sleeved with the same support shaft 217, and through the arrangement of the support shaft 217, the rotating part 21 can be supported, so that all the rotating wheels 211 and the gear 243 can move synchronously, and since the diameter of the gear 243 is smaller than the diameter of the gear ring 212, the transmission part is a speed reduction transmission, and the driving mode of the two rollers driven by the relative power source 24, when the conveying belt 1 moves at the same speed, the power source 24 in the technical scheme can rotate at a faster speed, so as to reduce the influence of the difference between the two power sources 24 on the conveying belt 1, for example, when the speed difference between the two rollers is five percent, the conveying belt 1 is deflected, at this time, the power source 24 is directly connected with the roller, that is, when the output speed of the power source 24 is 100 revolutions per minute, the other power source 24 is at 95-105 revolutions per minute, the conveying belt 1 will not be deflected, and in the technical scheme, the speed reduction transmission between the gear ring 212 and the gear 243, assuming that the speed reduction ratio is 4, then in the technical scheme, the output speed of the power source 24 is 400 revolutions per minute, and the other power source 24 is at 484-416 revolutions per minute, the conveying belt 1 will not be deflected, so as to increase the differential range of the two power sources 24.

[0037] The gear ring 212 is provided with a groove 218 on both sides of the outer ring, the teeth of the gear ring 212 are arranged on the protruding part between the two grooves 218, the outer side of the gear ring 212 is provided with a protective shell 8 wrapping the outer surface of the gear ring 212 and the power source 24, the protective shell 8 is arranged in the groove 218, the protective shell 8 is divided into two parts, and the protective shell 8 moves synchronously with the support shaft 217, since the gear ring 212 needs to be lubricated during work, through the arrangement of the protective shell 8, the lubricated part can be protected, so as to protect the lubricated part.

[0038] The lower part of the conveying belt 1 is provided with a support frame 4 supporting the driving pulley 2 and the driven pulley 3, and the support shaft 217 and the power source 24 are connected through the fixed frame 5 on both sides, which is slidingly connected to the upper part of the support frame 4, and the adjusting mechanism 7 for driving the fixed frame 5 to move relative to the support frame 4 is fixedly installed on the upper part of the support frame 4 on both sides. The detection mechanism is arranged in the traditional double-roller driving deviation correction mode, which uses the differential output on both sides. This kind of deviation correction mode increases the wear of one side of the conveying belt 1. By connecting the driving pulley 2 and the power source 24 together, the double-roller driving deviation correction mode of the conveying belt 1 can be adjusted to the traditional method of adjusting and leveling the driving pulley 2 on both sides. Through such arrangement, deviation correction can be realized more conveniently.

[0039] The outermost two rotating wheels 211 are fixedly installed with a blocking ring 219 at one end away from the gear ring 212. The outer surface of the support shaft 217 is inserted with a support sleeve 220. The support sleeve 220 is provided with a half-through hole 224 at one end close to the blocking ring 219. The half-through hole 224 is provided with a compression spring 221 inside. The free end of the compression spring 221 is provided with a ball 222. The ball 222 is in contact with the blocking ring 219. Through such arrangement, the rotating wheel 211 can be limited to rotate at a specified position on the support shaft 217. After the ball 222 is worn out, the compression spring 221 can be used for compensation.

[0040] The through hole 216 opened in the gear ring 212 has a diameter larger than that of the through hole 216 opened in the rotating wheel 211. The through hole 216 opened in the rotating wheel 211 is sleeved with a bearing 223. The bearing 223 is sleeved on the outer surface of the support shaft 217. Through such arrangement, the gear ring 212 does not contact the support shaft 217, and the rotating wheel 211, which plays a role in load, can rotate quickly relative to the support shaft 217 through the bearing 223.

[0041] The adjusting mechanism 7 includes two symmetrical telescopic sleeves 701 arranged on both sides of the fixed frame 5. The fixed end of the telescopic sleeve 701 is fixedly connected with the support frame 4. The free end of the telescopic sleeve 701 is in contact with the fixed frame 5. Through the simultaneous operation of the telescopic sleeves 701 on both sides, the angle of the support shaft 217 can be changed, thereby realizing deviation correction.

[0042] The adjusting mechanism 7 includes a motor 702 fixedly installed on the outer surface of the support frame 4. The output end of the motor 241 is fixedly installed with a square shaft 703. The outer surface of the square shaft 703 is sleeved with a sleeve 704. The outer surface of the sleeve 704 is provided with a threaded groove 705. The outer surface of the support frame 4 is fixedly installed with a threaded sleeve 706 engaged with the threaded groove 705. The end face of the sleeve 704 is fixedly installed with a ball head 707. One end of the fixed frame 5 is provided with a half-wrapped groove 708 accommodating the ball head 707. Through the simultaneous reverse rotation of the motors 702 on both sides, the angle of the support shaft 217 can be changed, thereby realizing deviation correction.

[0043] In use, firstly splice the driving pulley 2, firstly splice the gear ring 212 between the two rotating wheels 211 through the screw rod 213 to form the rotating part 21, then splice the rotating part 21 together and sleeve on the outer surface of the support shaft 217, then place the support shaft 217 between the two fixed frames 5, set the two center shafts 242 between the two fixed frames 5, and make the gear 243 inside the protective shell 8 and make the gear 243 and the gear ring 212 mesh, install the motor 241 on the fixed frame 5 and connect with the center shaft 242, install the remaining protective shell 8, sleeve the conveying belt 1 on the outer surface of the driving pulley 2 and the driven pulley 3, adjust the tension on one side of the driven pulley 3.

[0044] In use, the two power sources 24 work at the same speed to drive the driving pulley 2 to work, when the two power sources 24 have different rotating speeds, the rotating part 21 arranged at intervals can make the conveying belt 1 bear force uniformly, and the conveying belt 1 is deflected from multiple positions, thereby avoiding the problem that in the prior art, the two rollers drive the conveying belt 1, and only one side of the conveying belt 1 bears force, resulting in uneven wear;

[0045] When the conveying belt 1 is deflected at the same output speed of the power source 24, the support shaft 217 and the power source 24 are connected together on the fixed frame 5, thereby using the conventional deflection correction method of one driving pulley 2 to correct the deflection by changing the inclination angle of the driving pulley 2.

[0046] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An injury-preventing rubber conveyor belt traction device comprising a conveyor belt (1), a driving pulley (2) and a driven pulley (3), the conveyor belt (1) being arranged on the outer surface of the driving pulley (2) and the driven pulley (3), characterized in that: The driving pulley (2) comprises two groups of rotation parts (21) which are alternately distributed and sleeved on the inner ring of the conveying belt (1), and each group of rotation parts (21) corresponds to a power source (24) for driving the rotation of the rotation part (21); The rotation part (21) comprises a rotating wheel (211) for tensioning, the middle part of the rotating wheel (211) is provided with a gear ring (212), the power source (24) comprises a motor (241), the output end of the motor (241) is fixedly installed with a central shaft (242), the outer surface of the central shaft (242) is installed with a gear (243) which rotates synchronously with the central shaft (242), the gear (243) is engaged with the gear ring (212), and the two motors (241) are located on the inner ring of the conveying belt (1) and are arranged in an upper-lower staggered mode. The rotating wheel (211) is divided into left and right two parts, the gear ring (212) is arranged in the middle part of the two rotating wheels (211) and is concentric with the rotating wheels (211), and the gear ring (212) and the two rotating wheels (211) are fixedly connected through a plurality of screw rods (213) which are annularly distributed with the center of the gear ring (212) as the center. One end of the rotating wheel (211) away from the gear ring (212) is provided with an annular protrusion (214), and the other end of the rotating wheel (211) away from the gear ring (212) is provided with an annular groove (215), and the annular protrusion (214) is inserted into the adjacent annular groove (215). The middle part of the rotation part (21) is provided with a through hole (216), and the through holes (216) of the two groups of rotation parts (21) are sleeved with the same support shaft (217) inside.

2. A pull device for an injury-preventing rubber conveyor belt according to claim 1, characterized in that The outer ring of the gear ring (212) is provided with a groove (218) on both sides, the gear teeth of the gear ring (212) are arranged on the protruding part between the two grooves (218), the outer side of the gear ring (212) is provided with a protective shell (8) which wraps the outer surface of the gear ring (212) and the power source (24), the protective shell (8) is arranged in the groove (218), the protective shell (8) is divided into two parts, and the protective shell (8) moves synchronously with the support shaft (217).

3. A device according to claim 2, wherein: The lower part of the conveying belt (1) is provided with a support frame (4) for supporting the driving pulley (2) and the driven pulley (3), the support shaft (217) and the power source (24) are connected through a fixing frame (5), the fixing frame (5) is slidably connected to the upper part of the support frame (4), and the upper part of the support frame (4) is fixedly installed with an adjusting mechanism (7) for driving the relative movement of the fixing frame (5) and the support frame (4).

4. A pull device for an injury-preventing rubber conveyor belt according to claim 3, characterized in that: The end of the two rotating wheels (211) away from the gear ring (212) is fixedly installed with a blocking ring (219), the outer surface of the support shaft (217) is inserted with a support sleeve (220), one end of the support sleeve (220) close to the blocking ring (219) is provided with a half through hole (224), the inside of the half through hole (224) is provided with a compression spring (221), the free end of the compression spring (221) is provided with a ball (222), and the ball (222) is in contact with the blocking ring (219).

5. A pull device for an injury-preventing rubber conveyor belt according to claim 4, characterized in that: The gear ring (212) is provided with a through hole (216) with a diameter larger than that of the through hole (216) of the rotating wheel (211), the through hole (216) of the rotating wheel (211) is sleeved with a bearing (223), and the bearing (223) is sleeved on the outer surface of the supporting shaft (217).

6. A pull device for an injury-preventing rubber conveyor belt according to claim 5, characterized in that: The adjusting mechanism (7) comprises telescopic sleeves (701) symmetrically arranged on both sides of the fixing frame (5), the fixed ends of the telescopic sleeves (701) are fixedly connected with the support (4), and the free ends of the telescopic sleeves (701) are in contact with the fixing frame (5).

7. A device according to claim 5, wherein: The adjusting mechanism (7) comprises a motor (702) fixedly installed on the outer surface of the support (4), a square shaft (703) fixedly installed at the output end of the motor (241), a sleeve (704) sleeved on the outer surface of the square shaft (703), a threaded groove (705) formed in the outer surface of the sleeve (704), a threaded sleeve (706) fixedly installed on the outer surface of the support (4) and engaged with the threaded groove (705), a ball head (707) fixedly installed at the end face of the sleeve (704), and a half-wrapping groove (708) formed in one end of the fixing frame (5) and used for accommodating the ball head (707).

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