Skid protection device for belt conveyor

Abstract

The utility model relates to the technical field of belt conveyors, in particular to a belt conveyor slipping protection device which comprises a rack, two detection assemblies and an adjusting protection assembly, two driving shafts are symmetrically and movably installed in the rack in a penetrating mode, and conveying rollers are fixedly arranged on the outer walls of the two driving shafts in a sleeved mode. The outer walls of the two conveying rollers are sleeved with a conveying belt, and a driving motor used for driving one of the driving shafts is installed on the outer side of the rack. When data monitored by the two photoelectric type rotating speed sensors are different, the two tensioning rollers can be automatically controlled to rotate upwards, the tensioning degree of the conveying belt is increased, when the rotating speed data of the two photoelectric type rotating speed sensors are the same, the controller can close the speed reduction motor and no longer control the two tensioning rollers to rotate upwards, and therefore the conveying belt can be automatically tensioned. Therefore, the effect of automatically adjusting the tension degree of the conveying belt is achieved, and the conveyor is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of belt conveyors, in particular to a slip protection device for belt conveyors. Background Art

[0002] A belt conveyor is a continuous transport machine that uses a conveyor belt as both a traction and load-bearing component. The conveyor belt is wound around a drive pulley and various redirecting pulleys, with appropriate tension applied by a tensioning device. During operation, the belt is driven by the drive device, and the friction and tension between the pulleys and the conveyor belt drive the conveyor belt. Materials are continuously fed onto the conveyor belt, moving with it, thereby transporting the materials.

[0003] When the load on the conveyor belt is too large, exceeding the load capacity of the motor or starting too quickly, it will cause slippage. When slipping, there is sliding friction between the conveyor belt and the roller, which will wear the conveyor belt and generate a lot of heat. If the slippage is serious and not discovered in time, it may cause the conveyor belt to catch fire, and then ignite the goods on the belt and cause a fire.

[0004] When existing belt conveyors slip, staff are generally unable to detect or adjust them in time, and there is no slip protection measure to automatically adjust the tension of the conveyor belt, which can easily cause the conveyor belt to slip for a long time, resulting in greater wear and tear on the conveyor belt. The limitations are great, so it is necessary to improve the existing technology. Utility Model Content

[0005] The purpose of the utility model is to solve the problems in the background technology and to propose a belt conveyor slip protection device.

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

[0007] A belt conveyor slip protection device includes a frame, two detection components, and an adjustment protection component. Two drive shafts are symmetrically and movably installed in the frame. Conveyor rollers are fixedly sleeved on the outer walls of the two drive shafts. Conveyor belts are sleeved on the outer walls of the two conveyor rollers. A drive motor for driving one of the drive shafts is installed on the outer side of the frame.

[0008] The adjusting and protecting assembly includes a fixed plate fixedly mounted in the frame, a reduction motor fixedly mounted on the top of the fixed plate, a driving end of the reduction motor vertically upward and fixedly mounted with a main bevel gear, and support plates fixedly mounted on the top of the fixed plate are provided on both sides of the driving motor, and slave bevel gears are rotatably mounted on opposite sides of the two support plates, and the two slave bevel gears are meshed with the main bevel gear, and rotating racks are coaxially mounted on the opposite sides of the two slave bevel gears, and rotating shafts are fixedly rotatably mounted on the other ends of the two rotating racks, and two adjusting rollers of different lengths are fixedly mounted on the surfaces of the two rotating shafts, and the adjusting rollers are attached to the bottom of the conveyor belt;

[0009] The two detection components are respectively placed on the outside of the two drive shafts, and the detection components include a photoelectric speed sensor detachably mounted on the surface of the frame, and a reflective mark is fixedly mounted on the surface of the drive shaft;

[0010] A controller and a processor are fixedly mounted on the surface of the frame. The controller is electrically connected to the reduction motor. The processor is electrically connected to the controller and the photoelectric speed sensor.

[0011] Preferably, a plurality of support rollers rotatably mounted in a frame are attached to the inner top of the conveyor belt, and the plurality of support rollers are arranged in a linear array.

[0012] Preferably, two alarms and alarm lights are installed on the surface of the rack, and the two alarms are symmetrically arranged.

[0013] Preferably, a plurality of shock absorbers are installed at the bottom of the frame, and the plurality of shock absorbers are symmetrically arranged.

[0014] Preferably, a mounting block is fixedly mounted on the end of each photoelectric rotation speed sensor, and a bolt is threadedly connected between each mounting block and the frame.

[0015] Compared with the existing technology, the advantages of the belt conveyor slip protection device provided by the utility model are:

[0016] When the processor receives different speed data from the two photoelectric speed sensors, it can automatically start the reduction motor through the controller to drive the main bevel gear to rotate, and drive the two slave bevel gears to rotate in the opposite direction, so that both rotating frames rotate toward the conveyor belt until the adjusting roller pushes the bottom of the conveyor belt upward, thereby increasing the tension of the conveyor belt and preventing the conveyor belt from slipping. At this time, when the speed data from the two photoelectric speed sensors are the same, the controller will turn off the reduction motor, thereby achieving the effect of automatically adjusting the tension of the conveyor belt and protecting the conveyor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a first-perspective structural diagram of a belt conveyor slip protection device proposed by the utility model;

[0018] Figure 2 This is a second perspective structural diagram of a belt conveyor slip protection device proposed by the utility model;

[0019] Figure 3 This is a partial structural diagram of a belt conveyor slip protection device proposed by the utility model;

[0020] Figure 4 This is an enlarged view of the structure of A in 1.

[0021] In the figure: 1 frame, 2 drive shaft, 3 conveyor roller, 4 conveyor belt, 5 fixed plate, 6 reduction motor, 7 main bevel gear, 8 support plate, 9 slave bevel gear, 10 rotating frame, 11 rotating shaft, 12 adjusting roller, 13 photoelectric speed sensor, 14 reflective mark, 15 controller, 16 processor, 17 support roller, 18 alarm, 19 alarm light, 20 shock absorber, 21 mounting block, 22 bolts. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Reference Figures 1 to 4 A belt conveyor slip protection device includes a frame 1, two detection components and an adjustment protection component. A plurality of shock absorbers 20 are installed at the bottom of the frame 1, and the plurality of shock absorbers 20 are symmetrically arranged, which plays a certain shock-absorbing role.

[0024] Two drive shafts 2 are symmetrically and movably installed inside the frame 1. The outer walls of the two drive shafts 2 are fixedly sleeved with conveyor rollers 3. The outer walls of the two conveyor rollers 3 are sleeved with conveyor belts 4. A drive motor for driving one of the drive shafts 2 is installed on the outside of the frame 1. The inner top of the conveyor belt 4 is fitted with multiple support rollers 17 rotatably installed in the frame 1, and the multiple support rollers 17 are arranged in a linear array, which can support the conveyor belt 4 to prevent the conveyor belt 4 from collapsing due to excessive weight of the goods on the conveyor belt 4.

[0025] The adjustment protection assembly includes a fixed plate 5 fixedly installed in the frame 1, a reduction motor 6 is fixedly installed on the top of the fixed plate 5, the driving end of the reduction motor 6 is vertically upward and fixedly installed with a main bevel gear 7, and both sides of the reduction motor 6 are provided with a support plate 8 fixedly installed on the top of the fixed plate 5, and the opposite sides of the two support plates 8 are rotatably installed with a slave bevel gear 9, and the two slave bevel gears 9 are meshed with the main bevel gear 7, and the opposite sides of the two slave bevel gears 9 are coaxially installed with a rotating frame 10, and the other ends of the two rotating frames 10 are fixedly rotated. A rotating shaft 11 is installed on the surface of the two rotating shafts 11, and two adjusting rollers 12 of different lengths are fixedly installed, and the adjusting rollers 12 are in contact with the bottom of the conveyor belt 4. When the conveyor belt 4 slips and the tension of the conveyor belt 4 needs to be adjusted, the reduction motor 6 drives the main bevel gear 7 to rotate, driving the two slave bevel gears 9 to rotate in the opposite direction, so that the two rotating frames 10 are rotated in the direction close to the conveyor belt 4 until the adjusting rollers 12 push the bottom of the conveyor belt 4 upward, thereby increasing the tension of the conveyor belt 4 and preventing the conveyor belt 4 from slipping.

[0026] The two detection components are respectively placed on the outside of the two drive shafts 2. The detection components include a photoelectric speed sensor 13 that can be detachably mounted on the surface of the frame 1. The end of each photoelectric speed sensor 13 is fixedly mounted with a mounting block 21. Each mounting block 21 and the frame 1 are threadedly connected with a bolt 2.

[0027] A reflective mark 14 is fixedly installed on the surface of the drive shaft 2. The photoelectric speed sensor 13 detects the speed of the drive shaft 2 by sensing the frequency of the reflective mark 14 (the photoelectric speed sensor 13 is an existing public technology and will not be described in detail in this technical solution). When the speeds of the two drive shafts 2 are inconsistent, it may mean that the conveyor belt 4 is slipping.

[0028] A controller 15 and a processor 16 are fixedly mounted on the surface of the frame 1. The controller 15 is electrically connected to the reduction motor 6. The processor 16 is electrically connected to the controller 15 and the photoelectric speed sensor 13. When the processor 16 receives different speed data from the two photoelectric speed sensors 13, the reduction motor 6 can be automatically started through the controller 15. Conversely, when the speed data from the two photoelectric speed sensors 13 are the same, the controller 15 will turn off the reduction motor 6.

[0029] Furthermore, two alarms 18 and alarm lights 19 are installed on the surface of the frame 1, and the two alarms 18 are symmetrically arranged. When the conveyor belt 4 slips, the two alarms 18 and alarm lights 19 will emit sound and light respectively to remind the staff that the conveyor belt 4 has slipped.

[0030] The working principle of this utility model is:

[0031] The driving motor controls the operation of the conveyor belt 4 and monitors the rotation speed of the two conveyor rollers 3 through two photoelectric speed sensors 13. When the processor 16 receives different speed data from the two photoelectric speed sensors 13, it can automatically start the reduction motor 6 through the controller 15 to drive the main bevel gear 7 to rotate, and drive the two slave bevel gears 9 to rotate in the opposite direction, so that the two rotating frames 10 rotate in the direction close to the conveyor belt 4 until the adjusting roller 12 pushes the bottom of the conveyor belt 4 upward, thereby increasing the tension of the conveyor belt 4 and making the conveyor belt 4 no longer slip. At this time, when the speed data of the two photoelectric speed sensors 13 are the same, the controller 15 will turn off the reduction motor 6, thereby protecting the conveyor.

[0032] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are common means well known to those skilled in the art.

[0033] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A belt conveyor slip protection device, characterized in that: The machine comprises a frame (1), two detection components and an adjustment and protection component, wherein two drive shafts (2) are symmetrically and movably installed in the frame (1), the outer walls of the two drive shafts (2) are fixedly sleeved with conveying rollers (3), the outer walls of the two conveying rollers (3) are sleeved with conveyor belts (4), and a drive motor for driving one of the drive shafts (2) is installed on the outer side of the frame (1); The adjustment protection component includes a fixed plate (5) fixedly installed in the frame (1), a reduction motor (6) is fixedly installed on the top of the fixed plate (5), a driving end of the reduction motor (6) is vertically upward and fixedly installed with a main bevel gear (7), and both sides of the reduction motor (6) are provided with a support plate (8) fixedly installed on the top of the fixed plate (5), the opposite side of the two support plates (8) are rotatably installed with a slave bevel gear (9), and the two slave bevel gears (9) are meshed with the main bevel gear (7), and the opposite sides of the two slave bevel gears (9) are coaxially installed with a rotating frame (10), and the other ends of the two rotating frames (10) are fixedly rotatably installed with a rotating shaft (11), and the surfaces of the two rotating shafts (11) are fixedly installed with two adjustment rollers (12) of different lengths, and the adjustment rollers (12) are attached to the bottom of the conveyor belt (4); The two detection components are respectively placed on the outside of the two drive shafts (2), and the detection components include a photoelectric speed sensor (13) detachably mounted on the surface of the frame (1), and a reflective mark (14) is fixedly mounted on the surface of the drive shaft (2); A controller (15) and a processor (16) are fixedly mounted on the surface of the frame (1); the controller (15) and the reduction motor (6) are electrically connected; and the processor (16) and the controller (15) and the photoelectric speed sensor (13) are all electrically connected.

2. A belt conveyor slip protection device according to claim 1, characterized in that: The inner top of the conveyor belt (4) is fitted with a plurality of support rollers (17) rotatably mounted in the frame (1), and the plurality of support rollers (17) are arranged in a linear array.

3. The belt conveyor slip protection device according to claim 1, characterized in that: Two alarms (18) and an alarm light (19) are installed on the surface of the frame (1), and the two alarms (18) are symmetrically arranged.

4. A belt conveyor slip protection device according to claim 1, characterized in that: A plurality of shock absorbers (20) are installed at the bottom of the frame (1), and the plurality of shock absorbers (20) are symmetrically arranged.

5. The belt conveyor slip protection device according to claim 1, characterized in that: A mounting block (21) is fixedly mounted on the end of each photoelectric speed sensor (13), and a bolt (22) is threadedly connected between each mounting block (21) and the frame (1).

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