Belt conveyor protection net failure power-off device
The status of the protective net is monitored in real time through infrared rangefinder and spring motor drive screw system, which solves the problem of failure of the protective net that cannot be detected, and achieves safe power outage of the belt conveyor and improves safety.
Patent Information
- Application Number
- CN202422270717.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-18
AI Technical Summary
The protective net of existing belt conveyors cannot be detected whether it fails, resulting in personnel being involved in the machine, which poses production risks.
A belt conveyor protection network failure power failure device is designed, using an infrared rangefinder to detect the position changes of the moving plate, combined with a spring and a motor drive screw, the status of the protective network is monitored in real time, and the power is cut off in time.
Real-time detection and timely power outage of the protection network are achieved, safety hazards caused by the failure of the protection network are avoided, and production safety is improved.
Smart Images
Figure CN223059933U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of mine equipment, in particular to a power-off device for a belt conveyor protection net failure. Background Art
[0002] Belt conveyor is a friction-driven machine that transports materials in a continuous manner. It is mainly composed of a frame, conveyor belt, rollers, drums, tensioning devices, transmission devices, etc. Among them, the conveyor belts are connected into a closed loop, and they are tensioned with a tensioning device. Driven by the motor, the friction between the conveyor belt and the driving drum makes the conveyor belt run continuously, thereby achieving the purpose of transporting the cargo from the loading end to the unloading end.
[0003] In order to prevent people or objects from being drawn into the belt conveyor when it is working, a protective net is usually installed on the outside of the belt conveyor. However, after the protective net is installed, it is impossible to detect whether the protective net has failed. As a result, when people come into contact with the protective net, they may be drawn into the belt conveyor due to the failure of the protective net installation, thus causing production risks. Utility Model Content
[0004] The utility model aims to provide a belt conveyor protection net failure power-off device to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a belt conveyor protection net failure power-off device, comprising a mounting base plate, a plurality of groups of protection nets are fixedly connected to the outside of the mounting base plate, mounting frames are fixedly connected to both sides of the mounting base plate, a movable seat is slidably connected to the inside of the mounting frame, a mounting block is slidably connected to the inside of the movable seat, a mounting groove is provided inside the mounting block, a movable sheet is slidably connected to the inside of the mounting groove, a connecting rod is fixedly connected to one side of the movable sheet, the other end of the connecting rod penetrates the mounting block and is fixedly connected to a contact sheet, a spring is fixedly connected to one side of the movable sheet, the spring is sleeved on the outside of the connecting rod, the other end of the spring is fixedly connected to the inner wall of the mounting groove, and an infrared rangefinder is fixedly connected to one side of the mounting groove.
[0006] Preferably, a lead screw is threadedly connected to the inner side of the lower side of the movable seat, one end of the lead screw is rotatably connected to the mounting frame, and the other end of the lead screw is fixedly connected to a motor, and the motor is fixedly connected to the outer side of the mounting frame.
[0007] Preferably, a second connecting groove is opened on the front side of the mounting frame, a second connecting block is fixedly connected to one side of the lower portion of the movable seat, and the second connecting block penetrates the second connecting groove and is fixedly connected to a second limiting piece.
[0008] Preferably, baffles are fixedly connected to both sides of the protective net.
[0009] Preferably, first communication grooves are formed on both sides of the mounting frame, first connection blocks are fixedly connected to both sides of the mounting block, the first connection blocks penetrate through the first communication grooves and are fixedly connected to first limiting pieces, fixing holes are formed on both sides of the first limiting pieces, height holes matching the fixing holes are formed on both sides of the mounting frame, and fixing screws are threadedly connected inside the fixing holes.
[0010] Preferably, the upper part of the mounting frame is of a communicating structure.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0012] 1. In the present utility model, a spring is used to pull a moving piece, and a pushing force is given to a protective net through a connecting rod and a contact piece. When the protective net fails, the protective net tilts under the pushing force of the spring, causing a change in the position of the moving piece. An infrared rangefinder detects the degree of change in the position of the moving piece, thereby detecting whether the protective net fails, being able to give an appropriate pressure to the protective net, thereby judging whether the protective net detaches under the action of the pressure, thereby judging whether the protective net is damaged, and thus powering off the belt conveyor in a timely manner;
[0013] 2. In the present utility model, a motor drives a lead screw to rotate, causing a moving seat to move left and right, thereby changing the contact position of the contact piece. By moving the mounting block up and down inside the moving seat, the contact position of the contact piece is changed, and pressure can be given to different positions of the protective net to comprehensively detect the safety of the protective net. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a schematic three-dimensional structure diagram of the first perspective of the present utility model;
[0015] Figure 2 is a schematic structure diagram of the moving seat of the second perspective of the present utility model;
[0016] Figure 3 is a sectional view of the mounting block of the third perspective of the present utility model.
[0017] In the figure: 1, mounting base plate; 2, protective net; 3, mounting frame; 4, motor; 5, lead screw; 6, moving seat; 7, mounting block; 8, mounting groove; 9, moving piece; 10, connecting rod; 11, contact piece; 12, spring; 13, infrared rangefinder; 14, first communication groove; 15, first connection block; 16, first limiting piece; 17, fixing hole; 18, height hole; 19, fixing screw; 20, second communication groove; 21, second connection block; 22, second limiting piece; 23, baffle. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0019] Please refer to Figures 1-3 , the present utility model provides a technical solution: a power-off device for the failure of the protective net of a belt conveyor, including a mounting base plate 1, several groups of protective nets 2 are fixedly welded to the outside of the mounting base plate 1, mounting frames 3 are fixedly welded to both sides of the mounting base plate 1, a moving seat 6 is slidably installed inside the mounting frame 3, a mounting block 7 is slidably installed inside the moving seat 6, a mounting groove 8 is formed inside the mounting block 7, a moving piece 9 is slidably installed inside the mounting groove 8, a connecting rod 10 is fixedly welded to one side of the moving piece 9, the other end of the connecting rod 10 penetrates through the mounting block 7 and is fixedly welded with a contact piece 11, a spring 12 is fixedly welded to one side of the moving piece 9, the spring 12 is sleeved outside the connecting rod 10, and the other end of the spring 12 is fixedly welded to the inner wall of the mounting groove 8. An infrared rangefinder 13 is fixedly welded inside one side of the mounting groove 8. The spring 12 pushes the protective net 2 by pulling the moving piece 9, through the connecting rod 10 and the contact piece 11. If the protective net 2 fails, the protective net 2 tilts under the thrust of the spring 12, causing a change in the position of the moving piece 9. The infrared rangefinder 13 detects the degree of change in the position of the moving piece 9, thereby detecting whether the protective net 2 fails, and thus controlling the belt conveyor to cut off power in time;
[0020] A lead screw 5 is installed inside the lower side of the moving seat 6 with internal threads. One end of the lead screw 5 is rotatably connected to the mounting frame 3, and the other end of the lead screw 5 is connected to a motor 4 through a coupling. The motor 4 is flange-mounted on the outer side of the mounting frame 3. The motor 4 drives the lead screw 5 to rotate, causing the moving seat 6 to move left and right, thereby changing the contact position of the contact piece 11. A second communication groove 20 is provided on the front side of the mounting frame 3. A second connecting block 21 is fixedly welded to one side of the lower part of the moving seat 6. The second connecting block 21 penetrates through the second communication groove 20 and is fixedly welded to a second limiting piece 22 to prevent the lead screw 5 from driving the moving seat 6 to rotate, thereby changing the contact situation between the contact piece 11 and the protective net 2. Baffles 23 are fixedly welded to both sides of the protective net 2 to limit the left and right moving distance of a group of moving seats 6 and prevent the contact piece 11 from entering the gap between the protective nets 2. First communication grooves 14 are provided on both sides of the mounting frame 3. First connecting blocks 15 are fixedly welded to both sides of the mounting block 7. The first connecting blocks 15 penetrate through the first communication grooves 14 and are fixedly welded to first limiting pieces 16 to ensure the parallelism of the mounting block 7. Fixing holes 17 are provided on both sides of the first limiting piece 16. Height holes 18 matching the fixing holes 17 are provided on both sides of the mounting frame 3. A fixing screw 19 is threadedly connected inside the fixing hole 17. By moving the mounting block 7 up and down inside the moving seat 6, the contact position of the contact piece 11 is changed. Different height holes 18 are connected to the fixing holes 17 through the fixing screw 19 to fix the position of the mounting block 7. The upper part of the mounting frame 3 is provided with a communicating structure to facilitate taking out the mounting block 7 for maintenance of the mounting block 7.
[0021] Working principle: When this utility model is in use, the spring 12 pulls the moving piece 9, and gives a thrust to the protective net 2 through the connecting rod 10 and the contact piece 11. If the protective net 2 fails, the protective net 2 tilts under the thrust of the spring 12, causing a change in the position of the moving piece 9. The infrared rangefinder 13 detects the degree of change in the position of the moving piece 9, thereby detecting whether the protective net 2 fails. The motor 4 drives the lead screw 5 to rotate, causing the moving seat 6 to move left and right, thereby changing the contact position of the contact piece 11. By moving the mounting block 7 up and down inside the moving seat 6, the contact position of the contact piece 11 is changed. Different height holes 18 are connected to the fixing holes 17 through the fixing screw 19 to fix the position of the mounting block 7.
[0022] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.
[0023] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A power-off device for the failure of the protective net of a belt conveyor, comprising a mounting base plate (1), characterized in that: A number of groups of protective nets (2) are fixedly connected to the outside of the installation base plate (1). Installation frames (3) are fixedly connected to both sides of the installation base plate (1). A moving seat (6) is slidably connected inside the installation frame (3). An installation block (7) is slidably connected inside the moving seat (6). An installation groove (8) is formed inside the installation block (7). A moving piece (9) is slidably connected inside the installation groove (8). A connecting rod (10) is fixedly connected to one side of the moving piece (9). The other end of the connecting rod (10) penetrates through the installation block (7) and is fixedly connected to a contact piece (11). A spring (12) is fixedly connected to one side of the moving piece (9). The spring (12) is sleeved on the outside of the connecting rod (10). The other end of the spring (12) is fixedly connected to the inner wall of the installation groove (8). An infrared distance measuring instrument (13) is fixedly connected to the inside of one side of the installation groove (8).
2. The belt conveyor protection net failure power-off device according to claim 1, characterized in that: A lead screw (5) is threadedly connected to the inside of the lower side of the moving seat (6). One end of the lead screw (5) is rotatably connected to the installation frame (3). The other end of the lead screw (5) is fixedly connected to a motor (4). The motor (4) is fixedly connected to the outside of the installation frame (3).
3. The power-off device for belt conveyor protection net failure according to claim 1, characterized in that: A second communication groove (20) is formed in the front side of the installation frame (3). A second connecting block (21) is fixedly connected to one side of the lower part of the moving seat (6). The second connecting block (21) penetrates through the second communication groove (20) and is fixedly connected to a second limiting piece (22).
4. The power-off device for the failure of the protective net of a belt conveyor according to claim 1, characterized in that: Baffles (23) are fixedly connected to both sides of the protective net (2).
5. The belt conveyor protection net failure power-off device according to claim 1, characterized in that: First communication grooves (14) are formed in both sides of the installation frame (3). First connecting blocks (15) are fixedly connected to both sides of the installation block (7). The first connecting blocks (15) penetrate through the first communication grooves (14) and are fixedly connected to first limiting pieces (16). Fixing holes (17) are formed in both sides of the first limiting piece (16). Height holes (18) for cooperating with the fixing holes (17) are formed in both sides of the installation frame (3). Fixing screws (19) are threadedly connected to the inside of the fixing holes (17).
6. The power-off device for the failure of the protection net of the belt conveyor according to claim 1, characterized in that: The upper part of the installation frame (3) is arranged in a communicating structure.