Hanging type self-adaptive horizontal turning belt conveyor

Abstract

The invention provides a self-adaptive deviation-adjusting turning belt conveyor which comprises a straight section conveyor and a bending section conveyor, a bending machine body comprises an inner side rack, an outer side rack, a connecting beam, a circular tube longitudinal beam, a plurality of bearing carrier roller sets and a plurality of return carrier roller sets, and the connecting beam is fixedly arranged between the inner side rack and the outer side rack; the round tube longitudinal beam is arranged in the turning direction of a roadway and arranged in the middle of the connecting beam, the round tube longitudinal beam is fixedly connected with the connecting beam, the bearing carrier roller set comprises an upper suspension beam and an upper carrier roller frame, the upper suspension beam is arranged below the round tube longitudinal beam, the middle of the upper suspension beam is hinged to the round tube longitudinal beam, and the upper carrier roller frame is arranged below the upper suspension beam. The upper carrier roller frame is arranged on the upper suspension beam and connected with the two ends of the upper suspension beam. According to the scheme, by reasonably controlling the running speed of the adhesive tape and the material bearing capacity, the centrifugal force and the inward centripetal force of the adhesive tape are mutually counteracted, so that the balance of the adhesive tape is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of belt conveyors, and in particular to a belt-type hanging self-adaptive horizontal turning belt conveyor. Background Art

[0002] Compared with ordinary belt conveyors, flat turning belt conveyors have a wider range of applications, especially when there are unfavorable terrain or obstacles between the starting and ending points of ground belt conveyors. The use of a flat turning route can reduce the number of driving equipment and related facilities such as civil engineering machine rooms added at the overlapping points of adjacent belt conveyors, which is conducive to centralized control and power supply of the system. At the same time, it also reduces possible problems in the operation of equipment at the transfer point, such as wear of the conveyor belt, the risk of material blockage or overflow of the funnel, and reduces noise and dust for easy protection during seasonal changes.

[0003] In the prior art, the belt conveyor can turn at any angle of 0 to 90 degrees on the horizontal plane. If a normal body is used, there is a problem of too large turning radius. If a round tube conveyor or other special conveyors are used, the investment cost will be increased, reducing the economy of the conveyor. When turning horizontally, due to the existence of the running tension of the belt, the conveyor belt will generate a centripetal force toward the center of the circle. The most effective way to balance the centripetal force is to use the gravity of the conveyor belt and the materials carried on it to generate an outward centrifugal thrust. This requires raising the roller group on the inner side of the turn along the running direction of the conveyor belt by an angle, and using the gravity branch of the conveyor belt and the materials to generate centrifugal thrust; another method is to install the roller group at an angle toward the running direction of the conveyor belt, so that the axis of the roller group and the normal direction of the center line of the conveyor belt form an angle, and the component force in the normal direction generates centrifugal thrust.

[0004] To raise the inner curve of the roller group, the method usually adopted is to raise the inner side of the roller group to a certain angle. The size of this angle is determined according to the size of the conveyor running tension. The corresponding raising angle of different tensions also needs to be adjusted. Generally, a spring is set on the inner side of the roller frame to realize the automatic adjustment of the raising angle with the change of tension. The disadvantages of this technology are: the adjustment range of the spring is limited, and the adjusted roller frame can only adapt to a certain amount of transportation and tension. If the transportation amount or tension changes, it is very easy to cause the conveyor belt to deviate, flip, scatter, etc., and the conveyor belt is basically adjusted by setting rollers at both ends of the roller frame to force the conveyor belt to be blocked, which causes greater damage to the conveyor belt and requires higher strength of the roller frame and the roller.

[0005] 201521123505.3, this patent discloses a turning device. The crossbeam of this device is connected to the middle beam through a cross bidirectional axis, so that the bracket and roller of the bearing roller group can rotate in the horizontal plane and the vertical plane relative to the support frame. The horizontal plane rotation can realize the lifting of the inner curve roller group, but the vertical plane rotation will make the roller group unable to overcome the resistance of the conveyor belt along the horizontal running direction, which is bound to cause the bracket to shake, spill material, etc. Further vertical rotation of the roller group will also cause the left and right forward tilt conditions, accelerating the conveyor belt running deviation accident. In addition, the bearing roller group and the return roller group adopt different structures respectively. The left hanger 21 and the right hanger 22 of the return roller group are both set on the support frame. The return roller group adjusts the angle between the roller group and the horizontal plane by changing the installation position of the roller group, that is, horizontal rotation to realize the turning of the return belt. Combined with Figure 3 It can be seen that the left and right hangers achieve the purpose of raising the inner curve when turning by means of different positions of the mounting holes arranged in a circular shape. In the patent, the return roller group is installed at different positions by adjusting the bolts. However, after installation, when the belt is running normally, its position cannot be adjusted. The inclination angle of the return roller can only be adjusted by stopping the machine and re-adjusting the position of the bolts, which cannot adapt to the real-time deflection angle of the belt; secondly, the load-bearing roller group and the return roller group are deflected asynchronously, and the two cannot maintain the consistency of the deflection angle. Summary of the invention

[0006] In view of the above defects, the present invention proposes an adaptive deflection turning belt conveyor, including a straight section conveyor and a bending section conveyor, the bending section conveyor includes a bending body, the bending body includes an inner frame, an outer frame, a connecting beam, a round tube longitudinal beam, and a plurality of load-bearing roller groups and a return roller group, the connecting beam is fixedly arranged between the inner frame and the outer frame, the round tube longitudinal beam is arranged along the turning direction of the lane, the round tube longitudinal beam is arranged in the middle position of the connecting beam, the round tube longitudinal beam is fixedly connected to the connecting beam, the load-bearing roller group includes an upper suspension beam, an upper roller frame, an upper suspension The beam is arranged below the circular tube longitudinal beam, and the middle position of the upper suspension beam is hinged to the circular tube longitudinal beam, the upper roller frame is arranged below the upper suspension beam and connected to the two ends of the upper suspension beam, and a plurality of upper rollers for carrying the upward section of the belt are arranged on the upper roller frame; the return roller group includes a lower suspension beam, and a plurality of lower rollers arranged on the lower suspension beam for carrying the downward section of the belt, the lower suspension beam includes a first section and a second section, the second section is arranged below the upper roller frame, and the second section is used to carry the lower rollers of the downward section of the belt, and the first section is connected between the second section and the upper suspension beam to synchronize the second section with the upper suspension beam.

[0007] The present invention is a hanging self-adaptive horizontal turning belt conveyor, which is applied to belt conveyors used underground for a long time, and the turning parts of the tunnel ground are easy to deform. The load-bearing roller group of the present invention adopts a five-roller semicircular structure to increase the groove depth of the roller group, increase the concentration and load capacity of the material, and improve the automatic centering adjustment ability of the conveyor belt at the horizontal turning point to prevent material from being scattered. The entire roller support structure adopts a round tube structure bending and forming, and the connection adopts a U-bolt quick-release connection, which requires less welding and processing, is simple to manufacture, easy to install, has low production cost, and is economical. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a front view schematic diagram of the suspended adaptive horizontal turning belt conveyor of the present invention.

[0009] Figure 2 for Figure 1 Top view of the .

[0010] Figure 3 It is a schematic diagram of the connection between a group of load-bearing rollers 50, a return roller group 60, a connecting beam 30, and a round tube longitudinal beam 40.

[0011] Figure 4 for Figure 3 Left view of .

[0012] Figure 5 for Figure 3 Schematic diagram after inward rotation.

[0013] In the figure: inner frame 10, outer frame 20, connecting beam 30, round tube longitudinal beam 40, limit pin 41, load-bearing roller group 50, upper suspension beam 51, upper roller frame 52, upper roller 53, return roller group 60, lower suspension beam 61, lower roller 62, first section 63, second section 64, upward section 71, downward section 72. DETAILED DESCRIPTION

[0014] See also Figure 1-5The present invention proposes a hanging type adaptive horizontal turning belt conveyor, including a straight section conveyor and a bending section conveyor, wherein the bending section conveyor includes a bending body, wherein the bending body includes an inner frame 10, an outer frame 20, a connecting beam 30, a round tube longitudinal beam 40, and a plurality of bearing roller groups 50 and a return roller group 60, wherein the connecting beam 30 is fixedly arranged between the inner frame 10 and the outer frame 20, the round tube longitudinal beam 40 is arranged along the turning direction of the lane, the round tube longitudinal beam 40 is arranged at the middle position of the connecting beam 30, and the round tube longitudinal beam 40 is fixedly connected to the connecting beam 30, and the bearing roller group 50 includes an upper suspension beam 51 and an upper roller frame 52, and the upper suspension beam 51 is arranged on the round tube longitudinal beam 4 0, and the middle position of the upper suspension beam 51 is hinged to the round tube longitudinal beam 40, the upper roller frame 52 is arranged below the upper suspension beam 51 and connected to the two ends of the upper suspension beam 51, and a plurality of upper rollers 53 for carrying the upward section 71 of the belt are arranged on the upper roller frame 52; the return roller group 60 includes a lower suspension beam 61, and a plurality of lower rollers 62 for carrying the downward section of the belt arranged on the lower suspension beam 61, the lower suspension beam 61 includes a first section 63 and a second section 64, the second section 64 is arranged below the upper roller frame 52, and the second section 64 is used to carry the lower rollers 62 of the downward section 72 of the belt, and the first section 63 is connected between the second section 64 and the upper suspension beam 51 to synchronize the second section 64 and the upper suspension beam 51.

[0015] Furthermore, the upper roller frame 52 is fixedly connected to both ends of the upper suspension beam 51. In this solution, the upper suspension beam 51 and the upper roller frame 52 are fixedly connected by bolts or the like to ensure that the upper suspension beam 51 and the upper roller frame 52 rotate synchronously at the same angle. Figure 5 In the figure, the upper suspension beam 51 and the upper roller frame 52 rotate synchronously at an angle of a=b=11°. In the prior art, since the bracket 11 and the 12-beam are hinged, when the rotation angle of the 12-beam reaches 11°, the bracket 11 naturally moves downward due to gravity, that is, the bracket 11 and the 12-beam cannot form a straight L-axis direction in the present invention along the hinge point, and it is also impossible to ensure that the bracket 11 reaches the same rotation angle. This is because the bracket 11 and the 12-beam are hinged, and since the bracket 11 cannot reach the angle required by the process, it is also impossible to ensure that the centripetal force of the bracket 11 when turning and the tape and material thereon have a preset centrifugal force different from the preset process.

[0016] The upper suspension beam 51 and the circular tube longitudinal beam 40 are hinged with a limit pin 41, which can rotate horizontally along the hinge point, limiting the vertical rotation of the roller group, preventing the vertical rotation of the roller group during the operation of the conveyor belt to form a left and right forward tilting condition, which accelerates the deviation of the conveyor belt. The upper suspension beam 51 and the circular tube longitudinal beam 40 are connected by sleeve bolts, which can be easily disassembled and increase the rigidity of the connection point, avoiding the swing of the roller group caused by the hinge in the prior art, and the rotation angle is partially offset, which fails to reach the preset rotation angle, offsets the centrifugal force, and affects the operation of the conveyor belt.

[0017] Furthermore, a stop roller is also provided on the inner side of the upper roller frame 52 .

[0018] Furthermore, a retaining roller is provided on the inner side of the second section 64 .

[0019] When the roadway surface is flat, the upper roller frame 52 and the second section 64 are in a horizontal state. When encountering a turn, as shown in the figure, when turning right, the right side is the inner side, and the inner side of the upper roller frame 52 and the inner side of the second section 64 need to be raised, and the tape on the inner side of the upper roller frame 52 and the tape on the inner side of the second section 64 are also raised. The material on the raised upper section has a tendency to slide rightward and outward, forming a centrifugal force outward. By reasonably controlling the speed of the belt and the material carrying capacity, the centrifugal force and the inward centripetal force of the belt offset each other, thereby ensuring the balance of the belt.

[0020] However, the downlink section does not carry materials, and when turning inward, the belt of the downlink section also has centripetal force, but because it does not carry materials, it does not have the centrifugal force that the materials on the uplink section bring to the belt, and it is impossible to neutralize the centripetal force through centrifugal force. In this scheme, a first section 63 is set to connect the return roller group 60 and the load-bearing roller group 50 as a whole. When turning inward, the centrifugal force of the load-bearing roller group 50 also drives the return roller group 60 to have centrifugal force to move outward, thereby resisting the centripetal force of the downlink section belt. The design of this scheme, through the connecting beam 30 and the circular tube longitudinal beam 40, when turning, the return roller group 60 and the load-bearing roller group 50 can adaptively adjust the rotation angle according to the different turning angles; this scheme also designs the return roller group 60 and the load-bearing roller group 50 as a linkage integrated structure, which can ensure that the two act synchronously in real time, so that the centrifugal force of the load-bearing roller group 50 and the centripetal force of the return roller group 60 are simultaneously offset by the centrifugal force of the load-bearing roller group 50.

[0021] In the prior art, although the inner side is also raised to resist the centripetal force, under actual working conditions, before the belt conveyor is installed, although the conditions of the tunnel surface are surveyed and the angles of the turning points are surveyed and designed in advance, thereby presetting the elevation angles of the inner sides of the left hanger 21 and the right hanger 22 of the return roller group 60, during actual operation, the belt runs very fast, for example, 5-8 m / s. In addition, the tunnel surface is underground and the ground is soft. After the conveyor is installed, the preset operating years are several years or even more than ten years. After the belt has been running at full load for several years, deformation and collapse of the tunnel surface are inevitable. The originally designed elevation angles of the inner sides of the left hanger 21 and the right hanger 22 at the bend are fixed angles. After the tunnel is deformed, the original elevation angles can no longer adapt to the changed tunnel surface in real time.

[0022] like Figure 5When turning right, the load-bearing roller set 50 and the return roller set 60 are adaptively raised on the inner side under the action of the belt drive, and the load-bearing roller set 50 and the return roller set 60 simultaneously rotate 11° with the circular tube longitudinal beam 40 as the center, thereby offsetting the centripetal force generated by the inward turn.

[0023] For example, when the conveyor belt running tension is less than 100kN, the material filling rate is within 70%, the curve elevation angle in the roller group can reach a=11°, and the horizontal turning radius of the conveyor can be designed within 80m to achieve small radius transportation. In addition, a limit pin 41 is provided at the hinge point between the round tube longitudinal beam 40 and the load-bearing roller group 50 to limit the horizontal rotation angle of the roller group to prevent the centripetal force of the conveyor belt from being too large, causing the horizontal angle of the roller group to exceed the use requirements and cause loose materials.

[0024] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of this patent.

Claims

1. An adaptive deflection and turning belt conveyor, characterized in that: The invention comprises a straight section conveyor and a bending section conveyor, wherein the bending section conveyor comprises a bending body, wherein the bending body comprises an inner frame, an outer frame, a connecting beam, a round tube longitudinal beam, and a plurality of load-bearing roller groups and a return roller group, wherein the connecting beam is fixedly arranged between the inner frame and the outer frame, the round tube longitudinal beam is arranged along the turning direction of the lane, the round tube longitudinal beam is arranged at the middle position of the connecting beam, the round tube longitudinal beam is fixedly connected to the connecting beam, the load-bearing roller group comprises an upper suspension beam and an upper roller frame, the upper suspension beam is arranged below the round tube longitudinal beam, and the upper The middle position of the suspension beam is hinged to the circular tube longitudinal beam, the upper roller frame is arranged below the upper suspension beam and connected to the two ends of the upper suspension beam, and a number of upper rollers for carrying the upward section of the belt are arranged on the upper roller frame; the return roller group includes a lower suspension beam, and a number of lower rollers for carrying the downward section of the belt arranged on the lower suspension beam, the lower suspension beam includes a first section and a second section, the second section is arranged below the upper roller frame, and the second section is used to carry the lower rollers of the downward section of the belt, and the first section is connected between the second section and the upper suspension beam to synchronize the second section with the upper suspension beam.

2. The self-adaptive turning belt conveyor according to claim 1, characterized in that: The upper roller frame is fixedly connected to both ends of the upper suspension beam.

3. The self-adaptive turning belt conveyor according to claim 2, characterized in that: A stop roller is also arranged on the inner side of the upper roller frame.

4. The self-adaptive turning belt conveyor according to claim 3, characterized in that: A retaining roller is also provided on the inner side of the second section.

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