Belt surface speed protection device of belt conveyor

Abstract

The utility model relates to the technical field of conveying equipment, and discloses a belt surface speed protection device of a belt conveyor, which comprises an H frame and an adhesive tape, the inner side of the H frame is fixedly connected with a cross beam, the top of the H frame is provided with two fixing blocks, the tops of the two fixing blocks are both fixedly connected with fixing discs, and the fixing discs are fixedly connected with the cross beam. The inner sides of the two fixing discs are rotationally connected with a second pull rod, a winch is installed on the outer side of the second pull rod, a connecting steel wire rope is arranged on the outer side of the winch, the end, away from the winch, of the connecting steel wire rope is fixedly connected with a first pull rod, and one end of the first pull rod is provided with a roller type measuring belt speed slipping protection body. The device can be processed and installed by using existing materials, is suitable for various mine plants, reduces the reconstruction cost, has good popularization feasibility, and effectively reduces the safety risk by optimizing the mechanical structure and enabling an operator to remotely operate the rocker and finish a speed protection experiment and resetting without entering the protective net.

Description

Technical Field

[0001] This utility model relates to the field of conveying equipment technology, and in particular to a belt conveyor surface speed protection device. Background Technology

[0002] Belt conveyors are widely used in various industrial and mining sectors, primarily for the continuous transport of materials. Their working principle involves a belt circulating along the conveyor's path, transporting materials from one location to another. Due to their high efficiency and reliability, belt conveyors have become an indispensable piece of equipment in material handling.

[0003] However, during operation, especially under heavy loads or high speeds, belt conveyors may experience problems such as abnormal belt speed or slippage. This directly affects the normal operation of the conveyor and may even lead to equipment damage or serious safety accidents. Therefore, the application of speed protection devices becomes crucial. The main function of speed protection devices is to monitor the speed of the belt conveyor and ensure that it operates within a set safe range. When the conveyor belt speed becomes abnormal, the protection device can automatically trigger and stop the equipment, preventing safety hazards caused by abnormal belt speed or slippage.

[0004] The existing roller-type belt speed measuring slip protection for belt conveyors is installed under the original H-frame crossbeam. The belt conveyor has an external protective netting device. Every day, when performing speed protection checks or tests, operators need to remove the netting and use a long stick to lift the roller-type belt speed measuring slip protection device, which is inconvenient and time-consuming. If the protection fails, the rotating belt can easily cause mechanical injury. Therefore, a belt surface speed protection device for belt conveyors is proposed to solve these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a belt conveyor surface speed protection device, which aims to improve the problems of inconvenient operation, safety hazards and low operating efficiency of traditional belt conveyor speed protection devices.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a belt conveyor surface speed protection device, comprising an H-frame and a belt, wherein a crossbeam is fixedly connected to the inner side of the H-frame, two fixing blocks are installed on the top of the H-frame, and a fixing disc is fixedly connected to the top of each of the two fixing blocks, a second pull rod is rotatably connected to the inner side of the two fixing discs, a winch is installed on the outer side of the second pull rod, a connecting steel wire rope is provided on the outer side of the winch, a first pull rod is fixedly connected to the end of the connecting steel wire rope away from the winch, a roller-type belt speed measuring slippage protection body is installed on one end of the first pull rod, and a rocker arm is provided on one end of the second pull rod through an adjustment component, the adjustment component being used to adjust the length of the rocker arm.

[0007] As a further description of the above technical solution:

[0008] The adjustment assembly includes a set of two mounting cavities, both located on the outer side of the rocker arm. The openings of the two mounting cavities are opposite to each other. A movable plate is slidably connected to the inner wall of each mounting cavity. One end of the movable plate is fixedly connected to the inner wall of the mounting cavity with a spring, and the other end of the movable plate is fixedly connected to a post. Multiple sets of slots are provided on the outer side of the pull rod, with two slots in each set. The post is inserted into the slot. A reinforcing assembly is provided on the outer side of the rocker arm to enhance the strength when the rocker arm is connected to the pull rod.

[0009] As a further description of the above technical solution:

[0010] The reinforcing assembly includes two reinforcing plates, both of which are fixedly connected to the outside of the rocker arm. The inner wall of the second pull rod has two reinforcing grooves, and the reinforcing plates are slidably connected to the reinforcing grooves.

[0011] As a further description of the above technical solution:

[0012] The outer surface of the roller-type belt speed measuring slip protection body is in contact with the outer surface of the tape.

[0013] As a further description of the above technical solution:

[0014] Two fixing plates are fixedly connected to the top of the crossbeam, and the end of the pull rod away from the roller-type measuring belt speed slippage protection body is rotatably connected to the two fixing plates.

[0015] As a further description of the above technical solution:

[0016] The handle of the joystick is provided with anti-slip texture.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model can utilize existing materials for processing and installation, is applicable to various mines, reduces modification costs, and has good feasibility for promotion. By optimizing the mechanical structure, operators can remotely operate the joystick to complete speed protection experiments and resets without entering the protective net, effectively reducing safety risks. The overall design improves safety benefits, reduces safety hazards caused by traditional operating methods, and improves work efficiency and equipment reliability.

[0019] 2. In this utility model, the length of the rocker arm is adjustable by adjusting the component. The operator can adjust the length of the rocker arm according to actual needs, which can adapt to different working environments and operation requirements. In addition, the reinforcing component increases the force-bearing area and improves the connection stability by sliding the reinforcing plate and the reinforcing groove, preventing the rocker arm from shaking or loosening during use, and ensuring long-term durability and safety. Attached Figure Description

[0020] Figure 1 This is a perspective view of the belt speed protection device for the belt conveyor proposed in this utility model;

[0021] Figure 2 This is a top view of the belt speed protection device for the belt conveyor proposed in this utility model;

[0022] Figure 3 This is a side view of the belt speed protection device for the belt conveyor proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the rocker structure of the belt speed protection device for the belt conveyor proposed in this utility model;

[0024] Figure 5 for Figure 4 Enlarged view of point A in the image;

[0025] Figure 6 This is a schematic diagram of the reinforcing plate structure of the belt speed protection device for the belt conveyor proposed in this utility model;

[0026] Figure 7 for Figure 6 Enlarged view of point B in the image.

[0027] Legend:

[0028] 1. H-frame; 2. Crossbeam; 3. Adhesive tape; 4. Tie rod one; 5. Roller-type measuring belt speed slippage protection body; 6. Fixing block; 7. Tie rod two; 8. Fixing disc; 9. Winch; 10. Connecting wire rope; 11. Fixing plate; 12. Rocker arm; 13. Mounting cavity; 14. Moving plate; 15. Spring; 16. Insert post; 17. Slot; 18. Reinforcing plate; 19. Reinforcing groove. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figures 1-4 This utility model provides an embodiment of a belt conveyor surface speed protection device, comprising an H-frame 1 and a conveyor belt 3. A crossbeam 2 is fixedly connected to the inner side of the H-frame 1. Two fixing blocks 6 are installed on the top of the H-frame 1, and fixing discs 8 are fixedly connected to the top of each fixing block 6. A second tie rod 7 is rotatably connected to the inner side of the two fixing discs 8. A winch 9 is installed on the outer side of the second tie rod 7. A connecting wire rope 10 is provided on the outer side of the winch 9. The end of the connecting wire rope 10 away from the winch 9 is fixedly connected to the first tie rod. 4. One end of the pull rod 4 is equipped with a roller-type measuring belt speed slip protection body 5. The outer surface of the roller-type measuring belt speed slip protection body 5 is in contact with the outer surface of the tape 3. Two fixing plates 11 are fixedly connected to the top of the crossbeam 2. The end of the pull rod 4 away from the roller-type measuring belt speed slip protection body 5 is rotatably connected to the two fixing plates 11. One end of the pull rod 7 has a rocker arm 12 through the adjustment component. The handle of the rocker arm 12 is provided with anti-slip texture. The adjustment component is used to adjust the length of the rocker arm 12.

[0031] Specifically, the H-frame 1 serves as the basic structure of the entire belt conveyor surface speed protection device, providing a reliable load-bearing platform for the belt 3 and the crossbeam 2. Through the H-frame 1, in conjunction with the fixing block 6, the H-frame 1 acts as the main support for the entire device, its solid top providing a reliable installation platform for the fixing block 6. Through the fixing disc 8, in conjunction with the second pull rod 7, when the operator shakes the rocker arm 12, the resulting operating force is transmitted through the second pull rod 7. The fixing disc 8 then guides the movement of the second pull rod 7, ensuring that the rotation and movement of the second pull rod 7 are accurately transmitted to the subsequent winch 9. Through the winch 9, in conjunction with the connecting wire rope 10, the operator can shake the rocker arm 12 within a safe area, causing the winch 9 to rotate accordingly, thus easily controlling the first pull rod 4. With the lever 4 rotating around the fixed plate 11, its position can be adjusted. The roller-type belt speed measuring slip protection body 5 at one end of the lever 4 can be precisely moved closer to or further away from the belt 3 as needed, allowing it to rise or fall steadily. This enables speed protection experiments and reset operations to be completed without personnel approaching the dangerous operating area of ​​the belt 3, greatly improving operational safety and avoiding mechanical injuries caused by direct human contact. Through the adjustment components, operators can adjust the length of the rocker arm 12 according to actual needs, adapting to different working environments and operational requirements. The anti-slip texture of the rocker arm 12 ensures that the operator's hand firmly grips the handle when operating it. These textures act like small "grips," significantly increasing the friction between the hand and the rocker arm 12.

[0032] Reference Figure 4 and Figure 5The adjustment assembly includes a set of two mounting cavities 13, both of which are located on the outside of the rocker arm 12. The openings of the two mounting cavities 13 are opposite to each other. A movable plate 14 is slidably connected to the inner wall of the mounting cavity 13. A spring 15 is fixedly connected to one end of the movable plate 14 and the inner wall of the mounting cavity 13. A pin 16 is fixedly connected to the other end of the movable plate 14. Multiple sets of slots 17 are provided on the outside of the pull rod 7. Each set of slots 17 has two slots, and the pin 16 is inserted into the slot 17.

[0033] Specifically, the mounting cavity 13 cooperates with the movable plate 14, allowing the movable plate 14 to slide within the mounting cavity 13. A spring 15 provides the necessary rebound force, ensuring that the insertion post 16 can freely insert and withdraw from the slot 17 when needed. The insertion of the insertion post 16 into the slot 17 allows for rapid adjustment of the rocker arm 12's length, which is then automatically locked by the spring 15 after adjustment, preventing loosening or displacement of the rocker arm 12 due to improper operation and ensuring its stability and safety during use. This design enhances the equipment's flexibility, enabling it to adapt to different operating conditions and increasing operational convenience and equipment versatility.

[0034] Reference Figure 6 and Figure 7 A reinforcing component is provided on the outer side of the rocker arm 12. The reinforcing component is used to strengthen the connection between the rocker arm 12 and the second pull rod 7. The reinforcing component includes two reinforcing plates 18, both of which are fixedly connected to the outer side of the rocker arm 12. Two reinforcing grooves 19 are opened on the inner wall of the second pull rod 7, and the reinforcing plates 18 are slidably connected to the reinforcing grooves 19.

[0035] Specifically, by cooperating with the reinforcing plate 18 and the reinforcing groove 19 on the inner wall of the second pull rod 7, the contact area at the connection between the rocker arm 12 and the second pull rod 7 is increased, resulting in more uniform force distribution. The sliding connection design of the reinforcing plate 18 and the reinforcing groove 19 ensures that the rocker arm 12 slides more stably on the inner wall of the second pull rod 7 when adjusting its length, thus enhancing the strength of the rocker arm 12.

[0036] Working principle: During operation, the conveyor belt 3 will continue to rotate normally. The roller-type belt speed measuring and slippage protection body 5 is in close contact with the surface of the conveyor belt 3 and rotates synchronously with the conveyor belt 3. When speed protection is required or a speed protection test is to be conducted, the operator does not need to enter the protective net; instead, the entire operation is completed by controlling the joystick 12.

[0037] When the operator cranks lever 12, the force is transmitted to winch 9 through pull rod 7. Once winch 9 starts rotating, it tightens or loosens connecting wire rope 10. The movement of connecting wire rope 10 directly acts on pull rod 4, causing it to rotate around the rotation point of fixed plate 11. As pull rod 4 rotates, the roller-type belt speed measuring slip protection body 5 gradually detaches from the surface of belt 3, the roller stops rotating, while belt 3 continues to run. In this way, the system detects the speed difference between the roller and belt 3, triggering the protection action. After completing the experiment or resetting, the operator can crank lever 12 in the opposite direction to release connecting wire rope 10 from winch 9, return pull rod 4 to its initial position, and the roller-type belt speed measuring slip protection body 5 re-contacts belt 3.

[0038] By pressing the movable plate 14, the insertion post 16 retracts into the mounting cavity 13, thus disengaging the insertion post 16 from the slot 17. Subsequently, the rocker arm 12 can slide along the inner wall of the second pull rod 7. After finding the appropriate length, the movable plate 14 is released. Under the action of the spring 15, the insertion post 16 will automatically pop out and re-lock into the slot 17, completing the locking. In this way, the operator can quickly adjust the length of the rocker arm 12.

[0039] When the rocker arm 12 is connected to the pull rod 7, the reinforcing plate 18 slides into the reinforcing groove 19, increasing the contact area between the two. This effectively distributes the force points and prevents the rocker arm 12 from loosening or wobbling when subjected to external forces (such as shaking or pulling), thus ensuring operational stability.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A belt conveyor surface speed protection device, comprising an H-frame (1) and a conveyor belt (3), characterized in that: A crossbeam (2) is fixedly connected to the inner side of the H-frame (1). Two fixing blocks (6) are installed on the top of the H-frame (1). A fixing plate (8) is fixedly connected to the top of each of the two fixing blocks (6). A pull rod (7) is rotatably connected to the inner side of the two fixing plates (8). A winch (9) is installed on the outer side of the pull rod (7). A connecting wire rope (10) is provided on the outer side of the winch (9). A pull rod (4) is fixedly connected to the end of the connecting wire rope (10) away from the winch (9). A roller-type measuring belt speed slip protection body (5) is installed on one end of the pull rod (4). A rocker (12) is provided on one end of the pull rod (7) through an adjustment component. The adjustment component is used to adjust the length of the rocker (12).

2. The belt conveyor surface speed protection device according to claim 1, characterized in that: The adjustment assembly includes a set of mounting cavities (13), with two mounting cavities (13) in each set. Both mounting cavities (13) are located on the outside of the rocker arm (12), and the openings of the two mounting cavities (13) are arranged opposite to each other. A movable plate (14) is slidably connected to the inner wall of the mounting cavity (13). A spring (15) is fixedly connected to one end of the movable plate (14) and a plug (16) is fixedly connected to the other end of the movable plate (14). Multiple sets of slots (17) are provided on the outside of the second pull rod (7), with two slots in each set. The plug (16) is inserted into the slot (17). A reinforcing assembly is provided on the outside of the rocker arm (12) to enhance the strength when the rocker arm (12) is connected to the second pull rod (7).

3. The belt conveyor surface speed protection device according to claim 2, characterized in that: The reinforcing assembly includes two reinforcing plates (18), both of which are fixedly connected to the outside of the rocker arm (12). The inner wall of the second pull rod (7) has two reinforcing grooves (19), and the reinforcing plates (18) are slidably connected to the reinforcing grooves (19).

4. The belt speed protection device for a belt conveyor according to claim 1, characterized in that: The outer surface of the roller-type measuring belt slip protection body (5) is in contact with the outer surface of the tape (3).

5. The belt conveyor surface speed protection device according to claim 1, characterized in that: The top of the crossbeam (2) is fixedly connected to two fixing plates (11), and the end of the pull rod (4) away from the roller-type measuring belt speed slip protection body (5) is rotatably connected to the two fixing plates (11).

6. The belt speed protection device for a belt conveyor according to claim 1, characterized in that: The handle of the rocker arm (12) is provided with anti-slip texture.

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