CN114379988A

CN114379988A - Anti-twisting device of circular tube belt conveyor

Info

Publication number: CN114379988A
Application number: CN202210216095.5A
Authority: CN
Inventors: 施蕾
Original assignee: Shanghai Qizige Enterprise Management Center
Current assignee: Shanghai Qizige Enterprise Management Center
Priority date: 2022-03-07
Filing date: 2022-03-07
Publication date: 2022-04-22

Abstract

The invention relates to the technical field of circular tube belt conveyors, in particular to an anti-twisting device of a circular tube belt conveyor, which comprises a roller frame, a deviation-rectifying roller, a universal ball, a slide rod and a lower support; the correcting carrier roller is installed on the carrier roller frame, the carrier roller frame is provided with two sliding rods, and the sliding rods penetrate through the U-shaped slide way of the lower support. The invention adopts a pure mechanical structure and has low production cost. The deviation rectifying carrier roller of the anti-twisting device is very convenient to assemble, disassemble and maintain, and the deviation rectifying force can be controlled by rotating the adjusting bolt. To the transformation project that needs increase the anti-twist device, only need beat two mounting holes and can install in the backup pad of current pipe belt conveyor, strong adaptability, the range of application is wide.

Description

Anti-twisting device of circular tube belt conveyor

Technical Field

The invention relates to the technical field of circular tube belt conveyors, in particular to an anti-twisting device of a circular tube belt conveyor.

Background

The circular tube belt conveyor is mechanical equipment for conveying materials in a closed circular tube by rolling a conveying rubber belt into a circular tube shape, has the advantages of environmental protection, space turning and the like, and is more and more widely applied to the bulk material transportation industry. The rubber belt of the circular tube belt conveyor is often influenced by various factors to cause deviation and torsion of the tubular rubber belt in the running process. When the tubular rubber belt is twisted seriously, the rubber belt and the carrier roller are abnormally abraded, materials are scattered, the operation energy consumption is increased, even the carrier roller is cracked and flies, the rubber belt is torn, and the great economic loss is caused. The prior art is generally two types of automatic deviation adjustment and manual deviation adjustment, and the defects are as follows: 1. the automatic deviation adjusting mechanism generally has a large number of detection elements and needs an external power supply. The round pipe belt conveyor is difficult to get electricity along the way, the operation environment is generally severe, and the problems of false operation, failure, electric leakage and the like easily occur under the actions of strong wind, rainstorm, dust, corrosive muddy water, high temperature, low temperature and the like of detection elements, control systems, motors and the like. 2. For a long-distance and high-speed running circular tube belt conveyor, manual deviation adjustment needs to be stopped, time consumption is long, efficiency is low, and more workers are occupied.

When the circular tube belt conveyor is in no-load, the upper tubular rubber belt is heavy, light in weight and unstable in structure and is easy to twist. After the tubular adhesive tape bears a certain amount of materials, the gravity center moves downwards to be in a bottom-weight state, the structure is relatively stable, and the tubular adhesive tape is not easy to twist. According to the field experience of many years, the tubular adhesive tape is twisted within +/-20 degrees left and right, and normally swings within an allowable range, so that the circular tube conveying belt is considered to normally run. The deviation correction within the range of +/-20 degrees of left-right torsion of the tubular adhesive tape is likely to cause excessive deviation correction. In order to avoid excessive deviation rectification, a plurality of groups of detection devices are required to be arranged on the conventional automatic deviation regulating or anti-twisting device to monitor the twisting condition of the tubular rubber belt, and then deviation rectification is performed through a control system, an execution mechanism and the like, so that the structure is complex, the reliability is low, and the manufacturing cost is high.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the anti-twisting device of the circular tube belt conveyor, which can achieve the purpose by adopting a pure mechanical structure and has low production cost. The deviation rectifying carrier roller of the anti-twisting device is very convenient to assemble, disassemble and maintain, and the deviation rectifying force can be controlled by rotating the adjusting bolt. To the transformation project that needs increase the anti-twist device, only need beat two mounting holes and can install in the backup pad of current pipe belt conveyor, strong adaptability, the range of application is wide.

In order to solve the technical problems, the invention provides the following technical scheme:

an anti-twisting device of a circular tube belt conveyor comprises a roller frame, a deviation-rectifying roller, a universal ball, a sliding rod and a lower support; the correcting carrier roller is installed on the carrier roller frame, the carrier roller frame is provided with two sliding rods, the sliding rods penetrate through a U-shaped sliding groove of the lower support below the carrier roller frame, and five universal balls are installed between the carrier roller frame and the lower support, so that the carrier roller frame can freely slide on the lower support.

Preferably, the carrier roller frame is formed by assembling two L-shaped carrier roller side frames and a carrier roller lower frame which are arranged in an opposite mode, the deviation correcting carrier roller comprises a deviation correcting roller, a second anti-loosening washer and a second bolt, a threaded hole is drilled in the end of the deviation correcting roller, and the second bolt penetrates through the carrier roller side frames.

Preferably, the universal balls are provided with screws, the carrier roller frame is provided with four universal balls, and the lower support is provided with one universal ball.

Preferably, the rod body of the sliding rod is a high-strength bolt, the upper end of the sliding rod is fixed on the roller frame, the lower part of the sliding rod penetrates through the U-shaped sliding groove of the lower support, and two thin nuts are arranged at the lowest part of the sliding rod.

Preferably, the lower support comprises a fifth bolt, an adjusting bolt and a lower support, a U-shaped sliding groove is formed in the lower support and comprises a left U-shaped sliding groove deflection section a and a right U-shaped sliding groove deflection section a and a U-shaped sliding groove straight section b, and the opening direction of the U-shaped sliding groove is the same as the running direction of the corresponding tubular adhesive tape.

Preferably, the lower support side is provided with two waist-shaped mounting holes, the bolt five passes through the waist-shaped mounting holes and is connected with the supporting plate, a steel plate with a threaded hole for mounting an adjusting bolt is welded above the waist-shaped mounting holes, and the adjusting bolt abuts against the bolt head of the bolt five below.

Preferably, the maximum deflection angle α of the deviation correcting carrier roller is 10 ° to 20 °.

Compared with the prior art, the invention can achieve the following beneficial effects:

in order to achieve the purpose that the deviation is not corrected within the allowable torsion range of the circular tube belt conveyor and is corrected when the deviation exceeds the torsion range, the conventional torsion preventing device needs to be provided with a detection system, a control system, an actuating mechanism, a motor and the like. The invention can achieve the purpose by adopting a pure mechanical structure and has low production cost. The deviation rectifying carrier roller of the anti-twisting device is very convenient to assemble, disassemble and maintain, and the deviation rectifying force can be controlled by rotating the adjusting bolt. To the transformation project that needs increase the anti-twist device, only need beat two mounting holes and can install in the backup pad of current pipe belt conveyor, strong adaptability, the range of application is wide.

Drawings

FIG. 1 is a schematic view of an anti-twist device mounted on a round tube belt conveyor;

FIG. 2 is a front view of the anti-twist device;

FIG. 3 is a left side view of the anti-twist device;

FIG. 4 is a top view of the anti-twist device with the deflection correcting rollers in a centered position;

FIG. 5 is a top view of the anti-twist device just prior to the tubular adhesive tape being outside the allowable twist range;

FIG. 6 is a top view of the anti-twist device after the tubular adhesive tape has exceeded the allowable twist range;

FIG. 7 is an exploded view of the anti-twist device;

FIG. 8 is a front view of the anti-twist device with the tubular tape disengaged from the deviation rollers;

FIG. 9 is a front view of the anti-twisting device when the tubular adhesive tape is pressed against the deviation correcting rollers.

Wherein: 1-a truss; 11-a support plate; 2-tubular adhesive tape; 3-forming a pipe carrier roller; 4-an anti-twist device; 41-a roller frame; 411-carrier roller lower frame; 412-idler sideframe; 413-bolt one; 414-washer one; 415-nut one; 42-a deviation correcting carrier roller; 421-deviation correcting roller; 422-a second anti-loose washer; 423-bolt two; 43-universal ball; 431-a threaded rod gimbal ball assembly; 432-washer three; 433-nut three; 44-a slide bar; 441-bolt four; 442-washer four; 443-nut four; 444-thin nuts; 45-lower support; 451-bolt five; 452-an adjusting bolt; 453-lower support; 454-U type chute; 454 a-a U-shaped chute deflection section; 414 b-a straight section of a U-shaped chute.

Detailed Description

The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The above-mentioned directions or positions of the upper, lower, left, right, etc. are referred to in this specification for better describing the technical solution in conjunction with the drawings, so that the reader can understand that the practical implementation includes but is not limited to this description.

Example (b):

as shown in figure 1, the anti-twisting device of the circular tube belt conveyor comprises a truss 1, a tubular rubber belt 2, a tube forming carrier roller 3 and the like, wherein a support plate 11 on the truss 1 is used for installing the tube forming carrier roller 3, and the tube forming carrier roller 3 is used for bearing and forcing the rubber belt to form a tube. The torsion preventing means 4 is installed on the support plate 11 to prevent the tubular adhesive tape from being excessively twisted. For the built circular tube belt conveyor which needs to consume a large amount of manpower and material resources to correct torsion and even causes large economic loss, a bearing tube forming carrier roller right below a bearing tubular rubber belt is detached at a place where the torsion needs to be adjusted, two mounting holes are drilled on a supporting plate 11, and the torsion-preventing device can be mounted, so that the torsion condition of the tubular rubber belt can be relieved. The invention is also applicable to new projects.

As shown in FIG. 2, the anti-twisting device 4 comprises a roller frame 41, a deviation correcting roller 42, a universal ball 43, a slide rod 44 and a lower support 45. The correcting idler 42 is mounted on the idler frame 41, two slide rods 44 are mounted on the idler frame 41, and the slide rods 44 pass through the U-shaped chutes 454 of the lower support 45 below the idler frame 41. Five universal balls 44 are arranged between the roller frame 41 and the lower support 45, so that the roller frame 41 can freely slide on the lower support 45.

As shown in fig. 2 and 3, the idler frame 41 is assembled by two L-shaped idler side frames 412 mounted opposite to each other and an idler lower frame 411 below the L-shaped idler side frames through a first bolt 413, a first washer 414 and a first nut 415. The correcting idler 42 comprises a correcting roller 421, a second lock washer 422 and a second bolt 423. Threaded holes are drilled at the shaft ends of the deviation correcting rollers 421, bolts 423 penetrate through the carrier roller side frames 412 and are screwed into the threaded holes at the shaft ends of the rollers, and a lock washer 422 is arranged between each bolt and each side frame. The correcting carrier roller is convenient to assemble, disassemble and maintain, and the shaft head bolt and the anti-loosening washer of the correcting roller prevent the roller from falling off due to vibration.

The universal ball 43 is composed of a screw-threaded universal ball component 431, a washer three 432 and a nut three 433. Four universal balls 43 are arranged on the roller frame 41, and one universal ball 43 is arranged on the lower support 45. The universal ball 43 mounted on the lower support 45 is to prevent the roller frame 41 from tilting due to the universal ball 43 mounted on the roller frame 41 rolling into the U-shaped sliding slot 454 when the roller frame 41 slides left and right along with the adhesive tape. The universal ball main ball is made of stainless steel or nylon, so that the universal ball main ball can be prevented from rusting in a humid environment.

The slide rod 44 is composed of a bolt four 441, a washer four 442, a nut four 443, and a thin nut 444. The two thin nuts 443 are installed at the lowest part of the slide bar 44, which passes through the slide groove, to ensure that the nuts do not slip off due to vibration. And the pressing force between the thin nut 444 and the lower support 45 is adjusted to ensure that the roller frame 41 can freely translate on the lower support 45 and the roller frame 41 cannot overturn. The slide rod body, bolt four 441 is a high-strength bolt, and the thin nut 443 is made of stainless steel.

The lower support 45 includes a bolt five 451, an adjusting bolt 452, and a lower bracket 453. The lower frame 453 has a U-shaped slide groove 454. As shown in fig. 4, the U-shaped chute 454 includes a left U-shaped chute deflecting section 454a, a right U-shaped chute straight section 454b, and the opening direction of the U-shaped chute is the same as the running direction of the corresponding tubular adhesive tape 2.

The deviation correcting roller 421 contacts with the tubular adhesive tape 2 during normal operation, and the deviation correcting carrier roller 42 is driven to slide left and right when the tubular adhesive tape 2 is twisted left and right, and the sliding track is determined by the U-shaped chute 454. As shown in FIG. 5, when the tubular adhesive tape is twisted within + -20 degrees, the sliding rod 44 will move in the straight sliding slot, and the linear velocity direction of the surface of the correction roller is consistent with the tape running direction, so that no correction force will be generated. When the twisting of the adhesive tape exceeds 20 degrees as shown in fig. 6, one of the slide rods slides to the deflection section of the chute, the deviation correcting roller deflects, the surface linear speed direction of the deviation correcting roller forms an included angle with the running direction of the adhesive tape, the adhesive tape and the deviation correcting roller slide relatively to generate a friction force for pushing the tubular adhesive tape to twist back to a normal position, and therefore the purposes of correcting deviation and adjusting the twisting are achieved.

As shown in fig. 1 and 7, the lower support 45 has two waist-shaped holes on its side through which bolts five 451 pass to connect with the support plate 11. A steel plate with a threaded hole for installing the adjusting bolt 452 is welded above the waist-shaped hole, and the adjusting bolt 452 abuts against the bolt head of the lower bolt five 451. By rotating the adjusting bolt 452, the lower support base moves up and down to drive the correcting carrier roller 42 to move up and down. As shown in FIG. 8, the five bolts 451 are positioned above the waist-shaped holes, and the deviation rectifying rollers 421 are separated from the tubular adhesive tape 2, so that the anti-twisting device 4 is very convenient to mount, dismount and maintain. As shown in FIG. 9, the adjusting bolt 452 is rotated downward, the bolt five 451 is at the lower position in the waist-shaped hole, the lower support is moved upward, and the deviation correcting roller 421 contacts with the tubular adhesive tape 2 and generates positive pressure. The adjustment bolt 452 can be rotated to adjust the positive pressure between the deviation rectifying carrier roller 42 and the tubular adhesive tape 2, so as to adjust the deviation rectifying force.

The allowable torsion angle of the tubular rubber belt at the head and the tail of the circular tube belt conveyor is 20 degrees, and the allowable torsion angle of the middle section exceeds 20 degrees. Changing the length of the straight section 454b of the U-shaped chute can change the allowable torsion angle of the tubular rubber belt or adapt to circular tube belt conveyors with different tube diameters. Preferably, an anti-twisting device allowing a twisting angle to be 20 degrees is arranged at the position, close to the machine head and the machine tail, of the circular tube belt conveyor; and an anti-twisting device which allows the twisting angle to exceed 20 degrees is arranged at the middle section of the circular tube belt conveyor. The allowable torsion angle is determined by the diameter of the circular tube belt conveyor, the material of the rubber belt, the belt speed, the position and the like. The 20 ° is not a limitation of the present invention, but only for illustrating that the anti-twisting device of the present invention has no deviation rectifying force for the tubular adhesive tape within the allowable twisting range, and has a deviation rectifying force beyond this range.

As shown in fig. 6, the maximum deflection angle α of the deviation correcting idler is 10 ° to 20 °. When alpha is 15 degrees, the correction effect is better. The U-shaped chute deflection section can be an arc + inclined section or an arc section. Preferably, the anti-twisting device is compact in structure when the deflection section is an arc section, and the response speed of the deviation rectifying carrier roller is high. The maximum deflection angle of the deviation correcting carrier roller can be changed by changing the length of the left deflection segment and the right deflection segment of the U-shaped chute, so that the magnitude of the deviation correcting force is changed.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. An anti-twisting device of a circular tube belt conveyor is characterized in that the anti-twisting device (4) comprises a roller frame (41), a deviation correcting roller (42), a universal ball (43), a sliding rod (44) and a lower support (45); the correcting idler roller (42) is installed on the idler frame (41), two sliding rods (44) are installed on the idler frame (41), the sliding rods (44) penetrate through U-shaped sliding grooves (454) of a lower support (45) below the idler frame (41), five universal balls (43) are installed between the idler frame (41) and the lower support (45), and the idler frame (41) can freely slide on the lower support (45).

2. The anti-twisting device of the round pipe belt conveyor as claimed in claim 1, wherein the idler frame (41) is assembled by two L-shaped idler side frames (412) and an idler lower frame (411) which are installed oppositely, the deviation correcting idler (42) comprises a deviation correcting roller (421), a second anti-loosening washer (422) and a second bolt (423), a threaded hole is drilled in the end of the deviation correcting roller (421), and the second bolt (423) penetrates through the idler side frames (412).

3. The anti-twisting device for the round pipe belt conveyor as claimed in claim 1, wherein the universal balls (43) are provided with screws, four universal balls (43) are arranged on the roller frame (41), and one universal ball (43) is arranged on the lower support (45).

4. The anti-twisting device of the round tube belt conveyor as claimed in claim 1, wherein the rod body of the slide rod (44) is a high-strength bolt, the upper end of the slide rod (44) is fixed on the roller frame, the lower part of the slide rod (44) passes through a U-shaped chute (454) of the lower support (45), and two thin nuts (444) are arranged at the lowest part of the slide rod (44).

5. The anti-twisting device of the round tube belt conveyor as claimed in claim 1, wherein the lower support (45) comprises a bolt five (451), an adjusting bolt (452) and a lower support (453), the lower support (453) is provided with a U-shaped chute (454), the U-shaped chute (454) comprises a left U-shaped chute deflection section (454a) and a right U-shaped chute straight section (414b), and the opening direction of the U-shaped chute (454) is the same as the running direction of the corresponding tubular adhesive tape (2).

6. The anti-twisting device for the round tube belt conveyor as claimed in claim 5, wherein the lower support (45) is provided with two waist-shaped mounting holes at the side edge, the bolt five (451) penetrates through the waist-shaped mounting holes to be connected with the support plate (11), a steel plate with a threaded hole for mounting the adjusting bolt (452) is welded above the waist-shaped mounting holes, and the adjusting bolt (452) abuts against the bolt head of the lower bolt five (451).

7. The anti-twisting device for the round pipe belt conveyor according to claim 1, wherein the maximum deflection angle α of the deviation correcting carrier roller (42) is 10-20 °.