A belt conveyor belt breakage gripping device

Abstract

The utility model provides a kind of belt conveyor belt broken head grabbing device, belong to conveyor technical field.Device structure includes: the inner recessed ridge portion is equipped on outer sleeve body, recess and positioning convex point are equipped on ridge portion, fixed plate is equipped on rack, fixed plate is located in the position above oblique seat, pneumatic actuator is fixedly installed on the fixed plate, gas circuit is connected on pneumatic actuator, solenoid valve is equipped on gas circuit, pressure head is connected on the free end of pneumatic actuator, pressure head is located above outer sleeve body, several slide rods are connected on pressure head, the fixed plate is worn on the slide rod and is slidably engaged with fixed plate.The utility model starts operation according to the change of equipment rotating speed in belt breaking instant, utilizes pneumatic actuator to drive pressure head to compactly fixed to belt, to reach the purpose of grabbing.In addition, the utility model constructs occlusion mechanism between pressure head and rotating shaft, and utilizes groove body, positioning convex point to increase friction force, ensure the success rate of grabbing.

Description

Technical Field

[0001] This utility model relates to the field of conveyor technology, specifically to a belt breakage gripping device for belt conveyors. Background Technology

[0002] A belt conveyor, also known as a rubber belt conveyor or belt conveyor, is a mechanical device that achieves continuous material transport through friction. The working principle of a belt conveyor mainly relies on the friction between the drive drum and the conveyor belt. The drive drum drives the conveyor belt through an electric motor and a reducer. Material is fed from the feeding end and transported to the discharge end by the friction of the conveyor belt, where it is discharged.

[0003] The core structure of a belt conveyor consists of a conveyor belt, drive unit, idler system, tensioning device, braking device, frame, and auxiliary devices (such as belt storage and cleaning devices). The conveyor belt is the core component of the belt conveyor, responsible for load-bearing and traction, enabling the continuous and efficient transport of various solid lumps, powders, or packaged goods. Conveyor belts operate under tension for extended periods and may break due to various reasons: material fatigue and aging, overload operation, defective joints, jammed or abnormally operating rollers, foreign object entanglement and tearing, and failure to correct belt misalignment in time. The breakage of a large conveyor belt is accompanied by a sudden bounce and overturning; if the broken end is not secured promptly, it can easily cause injury to surrounding personnel and equipment. Summary of the Invention

[0004] This utility model aims to address the technical deficiencies of existing technologies by providing a belt breakage grabbing device for belt conveyors, thereby solving the technical problem that large conveyor belts can easily cause injury to surrounding personnel and equipment when they break.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution:

[0006] A belt breakage gripping device for a belt conveyor includes a frame, a lower roller, inclined seats, bearings, a rotating shaft, a central ridge, an outer sleeve, a groove, positioning protrusions, a pneumatic actuator, an air circuit, a solenoid valve, a pressure head, a slide bar, and a spring. The lower roller is rotatably connected to the lower side of the frame's central section. Inclined seats are fixedly connected to the frame on both sides of the lower roller. Bearings are fixedly connected to the inclined seats, and the rotating shaft is rotatably connected to the bearings. An outer sleeve is provided outside the rotating shaft, and the outer sleeve has a concave central ridge. The machine has several grooves and positioning protrusions on its central ridge. A fixed plate is mounted on the frame above the inclined seat. A pneumatic actuator is fixedly mounted on the fixed plate. An air circuit is connected to the pneumatic actuator, and a solenoid valve is installed on the air circuit. A pressure head is connected to the free end of the pneumatic actuator. The pressure head is located above the outer casing. Several sliding rods are connected to the pressure head. The sliding rods pass through the fixed plate and slide in cooperation with the fixed plate. Several springs are connected between the pressure head and the fixed plate.

[0007] Preferably, the two inclined seats located on the left and right sides of the lower roller are arranged symmetrically.

[0008] Preferably, several protruding ridges are provided on the bottom surface of the pressure head.

[0009] Preferably, several springs are respectively sleeved on the outside of several sliding rods, and the springs do not contact the sliding rods.

[0010] Preferably, several slide bars are evenly distributed along the circumference outside the pneumatic actuator.

[0011] Preferably, the solenoid valve is communicatively connected to the speed sensor of the belt conveyor.

[0012] Preferably, there are multiple gripping devices, which are spaced apart along the extension direction of the belt conveyor.

[0013] Preferably, a V-groove is provided on the bottom surface of the pressure head, which matches the central ridge.

[0014] In the above technical solution, the frame serves as a basic support; the lower roller supports and positions the bottom of the conveyor belt; the inclined seat is used to house the bearing; the bearing is used to house the rotating shaft. During normal operation of the conveyor, the rotating shaft and its associated structures come into contact with the conveyor belt. When the pressure head performs a gripping action, it presses down on the conveyor belt, thus clamping the conveyor belt between the pressure head and the rotating shaft. To increase the gripping force, this invention features an alternating structure of a central ridge and an outer sleeve on the outside of the rotating shaft. The grooves and positioning protrusions on the central ridge increase the friction on the conveyor belt. When the conveyor belt breaks, the speed sensor of the device suddenly spikes. This triggers a solenoid valve to open via a preset threshold, opening the air circuit and activating the pneumatic actuator. The actuator drives a pressure head to rapidly press down on the conveyor belt below, pressing it against a rotating shaft. The shaft, due to its inertia, is rotating. The pressing head, across the conveyor belt, presses against the shaft surface. The rotating shaft's central ridge reaches the side of the pressure head, creating a gripping effect between them, thus securing the conveyor belt. During the downward pressure of the pressure head, the sliding cooperation of the slide bar and the fixing plate ensures feed stability; a spring assists in resetting the pressure head after the device has finished its work.

[0015] In practical applications, multiple copies of this invention need to be arranged at intervals along the extension path of the conveyor belt, so that multiple points can be activated simultaneously at the moment of breakage to ensure successful gripping.

[0016] This invention provides a belt breakage gripping device for belt conveyors. The device activates based on the change in equipment speed at the moment the belt breaks, using a pneumatic actuator to drive a pressure head to clamp and fix the belt, thus achieving the gripping purpose. Furthermore, this invention incorporates a meshing mechanism between the pressure head and the rotating shaft, and utilizes structures such as grooves and positioning protrusions to increase friction, ensuring a high success rate of gripping. Attached Figure Description

[0017] Figure 1 This is an overall drawing of the present invention;

[0018] Figure 2 This is the first partial view of this utility model;

[0019] Figure 3 yes Figure 1 A partial view of position A in the middle;

[0020] Figure 4 This is the second partial view of this utility model;

[0021] In the picture:

[0022] Detailed Implementation

[0023] The specific embodiments of this utility model will be described in detail below. To avoid excessive and unnecessary details, well-known structures or functions will not be described in detail in the following embodiments. The approximate language used in the following embodiments can be used for quantitative descriptions, indicating that a certain degree of variation in quantity is permissible without changing the basic function. Unless otherwise defined, the technical and scientific terms used in the following embodiments have the same meaning as commonly understood by those skilled in the art to which this utility model pertains.

[0024] Example 1

[0025] A belt breakage gripping device for a belt conveyor, such as Figures 1-4 As shown, the assembly includes a frame 1, a lower roller body 2, an inclined seat 3, a bearing 4, a rotating shaft 5, a central ridge 6, an outer sleeve 7, a groove 8, a positioning protrusion 9, a pneumatic actuator 10, an air passage 11, a solenoid valve 12, a pressure head 13, a slide rod 14, and a spring 15. The lower roller body 2 is rotatably connected to the lower side of the middle of the frame 1. An inclined seat 3 is fixedly connected to the frame 1 on both sides of the lower roller body 2. A bearing 4 is fixedly connected to the inclined seat 3. A rotating shaft 5 is rotatably connected to the bearing 4. An outer sleeve 7 is provided outside the rotating shaft 5. A concave central ridge 6 is provided on the outer sleeve 7. The frame 6 has several grooves 8 and several positioning protrusions 9. A fixing plate is provided on the frame 1. The fixing plate is located above the inclined seat 3. A pneumatic actuator 10 is fixedly installed on the fixing plate. An air passage 11 is connected to the pneumatic actuator 10. A solenoid valve 12 is provided on the air passage 11. A pressure head 13 is connected to the free end of the pneumatic actuator 10. The pressure head 13 is located above the outer casing 7. Several sliding rods 14 are connected to the pressure head 13. The sliding rods 14 pass through the fixing plate and slide in cooperation with the fixing plate. Several springs 15 are connected between the pressure head 13 and the fixing plate.

[0026] In the above technical solution, the frame 1 serves as a basic support; the lower roller 2 supports and positions the bottom of the conveyor belt; the inclined seat 3 is used to house the bearing 4; the bearing 4 is used to house the rotating shaft 5. During normal operation of the conveyor, the rotating shaft 5 and its associated structure are in contact with the conveyor belt. When the pressure head 13 performs a gripping action, it presses down on the conveyor belt, thus clamping the conveyor belt between the pressure head 13 and the rotating shaft 5. To increase the gripping force, this utility model provides an alternating structure of a central ridge 6 and an outer sleeve 7 on the outside of the rotating shaft 5. The groove 8 and positioning protrusion 9 on the central ridge 6 can increase the friction force on the conveyor belt. When the conveyor belt breaks, the speed sensor of the device suddenly spikes. At this moment, a preset threshold triggers the solenoid valve 12 to open, thereby connecting the air passage 11 and triggering the pneumatic actuator 10. The pneumatic actuator 10 drives the pressure head 13 to quickly press down on the conveyor belt and press against the rotating shaft 5. At this time, the rotating shaft 5 is rotating due to its own inertia. The pressing head 13 presses against the surface of the rotating shaft 5 through the conveyor belt. The rotating shaft 5 causes its central ridge 6 to reach the side of the pressure head 13, thus forming a biting state with the pressure head 13, gripping and fixing the conveyor belt. During the process of the pressure head 13 pressing down on the conveyor belt, the sliding cooperation between the slide rod 14 and the fixed plate ensures the stability of the feed; the spring 15 can assist in resetting the pressure head 13 after the device has finished working.

[0027] Example 2

[0028] A belt breakage gripping device for a belt conveyor, such as Figures 1-4As shown, the assembly includes a frame 1, a lower roller body 2, an inclined seat 3, a bearing 4, a rotating shaft 5, a central ridge 6, an outer sleeve 7, a groove 8, a positioning protrusion 9, a pneumatic actuator 10, an air passage 11, a solenoid valve 12, a pressure head 13, a slide rod 14, and a spring 15. The lower roller body 2 is rotatably connected to the lower side of the middle of the frame 1. An inclined seat 3 is fixedly connected to the frame 1 on both sides of the lower roller body 2. A bearing 4 is fixedly connected to the inclined seat 3. A rotating shaft 5 is rotatably connected to the bearing 4. An outer sleeve 7 is provided outside the rotating shaft 5. A concave central ridge 6 is provided on the outer sleeve 7. The frame 1 has several grooves 8 and several positioning protrusions 9. A fixing plate is provided on the frame 1, located above the inclined seat 3. A pneumatic actuator 10 is fixedly installed on the fixing plate. An air passage 11 is connected to the pneumatic actuator 10, and a solenoid valve 12 is provided on the air passage 11. A pressure head 13 is connected to the free end of the pneumatic actuator 10, located above the outer casing 7. Several sliding rods 14 are connected to the pressure head 13, which pass through the fixing plate and slide in cooperation with it. Several springs 15 are connected between the pressure head 13 and the fixing plate. The two inclined seats 3 located on the left and right sides of the lower roller 2 are arranged axially symmetrically. Several protruding ridges are provided on the bottom surface of the pressure head 13. Several springs 15 are respectively sleeved on the outside of several sliding rods 14, and the springs 15 do not contact the sliding rods 14. Several sliding rods 14 are evenly distributed circumferentially on the outside of the pneumatic actuator 10. The solenoid valve 12 is communicatively connected to the speed sensor of the belt conveyor. Multiple gripping devices are provided, and these gripping devices are arranged at intervals along the extension direction of the belt conveyor. A V-shaped groove is provided on the bottom surface of the pressure head 13, which cooperates with the central ridge 6.

[0029] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, and improvements made within the scope of this utility model application should be included within the protection scope of this utility model.

Claims

1. A belt breakage gripping device for a belt conveyor, characterized in that: The machine includes a frame (1), a lower roller body (2), an inclined seat (3), a bearing (4), a rotating shaft (5), a central ridge (6), an outer sleeve (7), a groove (8), a positioning protrusion (9), a pneumatic actuator (10), an air passage (11), a solenoid valve (12), a pressure head (13), a slide bar (14), and a spring (15). The lower roller body (2) is rotatably connected to the lower side of the middle part of the frame (1). An inclined seat (3) is fixedly connected to the frame (1) on both sides of the lower roller body (2). A bearing (4) is fixedly connected to the inclined seat (3). A rotating shaft (5) is rotatably connected to the bearing (4). An outer sleeve (7) is provided outside the rotating shaft (5). A concave central ridge is provided on the outer sleeve (7). (6) Several grooves (8) and several positioning protrusions (9) are provided on the middle ridge (6). A fixing plate is provided on the frame (1). The fixing plate is located above the inclined seat (3). A pneumatic actuator (10) is fixedly installed on the fixing plate. An air passage (11) is connected to the pneumatic actuator (10). A solenoid valve (12) is provided on the air passage (11). A pressure head (13) is connected to the free end of the pneumatic actuator (10). The pressure head (13) is located above the outer sleeve (7). Several sliding rods (14) are connected to the pressure head (13). The sliding rods (14) pass through the fixing plate and slide in cooperation with the fixing plate. Several springs (15) are connected between the pressure head (13) and the fixing plate.

2. The belt breakage gripping device for a belt conveyor according to claim 1, characterized in that, The two inclined seats (3) located on the left and right sides of the lower roller body (2) are arranged symmetrically.

3. The belt breakage gripping device for a belt conveyor according to claim 1, characterized in that, Several protruding ridges are provided on the bottom surface of the pressure head (13).

4. The belt breakage gripping device for a belt conveyor according to claim 1, characterized in that, Several springs (15) are respectively placed outside several sliding rods (14), and the springs (15) do not contact the sliding rods (14).

5. A belt breakage gripping device for a belt conveyor according to claim 1, characterized in that, Several slide bars (14) are evenly distributed along the circumference outside the pneumatic actuator (10).

6. The belt breakage gripping device for a belt conveyor according to claim 1, characterized in that, The solenoid valve (12) is communicatively connected to the speed sensor of the belt conveyor.

7. A belt breakage gripping device for a belt conveyor according to claim 1, characterized in that, The gripping device is provided in multiple units, and the multiple gripping devices are arranged at intervals along the extension direction of the belt conveyor.

8. A belt breakage gripping device for a belt conveyor according to claim 1, characterized in that, A V-groove is provided on the bottom surface of the pressure head (13), which matches the central ridge (6).

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