A belt conveyor tensioning trolley loosening early warning device

Abstract

The utility model relates to belt conveyor technical field especially relates to a kind of belt conveyor tension trolley loosening early warning device, the belt conveyor tension trolley loosening early warning device, including, track and auxiliary mechanism, track, the track top is equipped with tension trolley, and the tension trolley front end is fixedly connected with positioning plate;Auxiliary mechanism, the track top is equipped with auxiliary mechanism, auxiliary mechanism can use the cooperation of spring and telescopic rod to assist travel switch to swing, this cooperation not only can accurately transmit signal when triggering, but also in long-term use, through the elastic restoring force of spring and the stable support of telescopic rod, avoid the problem that swing is due to frequent swing, external force impact or long time use and appears flexibility drop, effectively guarantee the reliability and stability of travel switch;The utility model provides the early warning function when tension trolley loosens.

Description

Technical Field

[0001] This utility model relates to the field of belt conveyor technology, specifically to a belt conveyor tensioning trolley loosening early warning device. Background Technology

[0002] As a key component of belt conveyors, the tensioning system directly determines whether the equipment can operate efficiently, safely, and stably. However, in actual operation, current monitoring of the tensioning system is insufficient, lacking effective means to monitor its status in real time. When the tensioning trolley becomes slightly loose, this subtle abnormality often goes undetected, easily leading to problems such as belt misalignment and slippage, and in severe cases, even causing safety accidents and adversely affecting production. To address this pain point, it is necessary to further strengthen the monitoring of the main belt tensioning system to ensure timely detection of changes in tension. Based on this, a "tensioning trolley loosening early warning device" is designed and manufactured in the tensioning direction of the tensioning trolley. This allows operators to monitor the changes in the tensioning trolley's status in real time, detect potential loosening hazards immediately, effectively prevent accidents, and ensure the stable operation of the belt conveyor.

[0003] To address this, we propose an early warning device for loosening of the tensioning trolley in a belt conveyor. Utility Model Content

[0004] The purpose of this invention is to provide a belt conveyor tension trolley loosening early warning device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a belt conveyor tensioning trolley loosening early warning device, comprising: A track, on the top of which a tensioning trolley is mounted, and a positioning plate is fixedly connected to the front end of the tensioning trolley; An auxiliary mechanism includes a first sliding groove, which is provided on the outer side of the track. A first sliding block is slidably installed inside the first sliding groove, and a support plate is fixedly connected to the outer side of the first sliding block.

[0006] Preferably, a supporting flat iron is installed on the top of the track, a nut is fixedly connected to the outside of the supporting flat iron, a bolt is installed inside the nut, and a limit switch is installed on the outside of the top of the supporting flat iron.

[0007] Preferably, the auxiliary mechanism further includes a vertical plate, with the other end of the support plate fixedly connected to the vertical plate. A telescopic rod is installed at the top and bottom of the vertical plate, and a spring is installed on the outside of the telescopic rod. A second sliding groove is formed on the inner wall of the vertical plate, and a second sliding block is slidably installed inside the second sliding groove. The other end of the telescopic rod is fixedly connected to the second sliding block. When the tensioning trolley becomes loose, it will shift along the track, and the positioning plate at its front end will move along with it. During the shift, the positioning plate will come into contact with the support plate in the auxiliary mechanism and apply force. Affected by the thrust of the positioning plate, the support plate drives the first sliding block fixed thereto to slide along the first sliding groove. At the same time, the support plate drives the vertical plate at the top to shift synchronously. When the vertical plate shifts, the second sliding groove on its inner wall limits the second sliding block, causing the second sliding block to change position under the action of the vertical plate. The second sliding block pushes the swing head of the limit switch to swing through the rotating connecting rod.

[0008] Preferably, a connecting rod is installed at the swing head of the limit switch, and the other end of the connecting rod is rotatably connected to the inside of the second sliding block.

[0009] Preferably, the outer side of the supporting flat iron is provided with a guide groove, and a mounting base is slidably installed inside the guide groove. A mounting plate is fixedly connected to the front end of the mounting base, and a brush plate is installed at the front end of the mounting plate. A heat dissipation vent is provided on the back of the limit switch. The mounting plate fixed to the front end of the mounting base drives the brush plate to move synchronously. During the movement, the brush plate can clean the heat dissipation vent on the back of the limit switch, removing accumulated dust, debris, etc., to prevent the heat dissipation vent from being blocked, which would prevent the internal heat of the limit switch from being unable to dissipate in time and prevent the limit switch from malfunctioning due to overheating.

[0010] Preferably, the limit switch is connected to the central control host and is electrically controlled by the central control host.

[0011] Compared with the prior art, the beneficial effects of this utility model are: Ensuring the reliability and stability of early warning: The auxiliary mechanism, through the cooperation of the telescopic rod and the spring, can provide a smooth thrust to the limit switch swing head when the tension trolley loosens, ensuring accurate signal transmission and effective early warning; at the same time, with the elastic restoring force of the spring and the stable support of the telescopic rod, it can avoid the problem of reduced flexibility of the swing head due to frequent swinging, external impact or long-term use, which significantly improves the service life and operational reliability of the limit switch and ensures the continuous effectiveness of the early warning function.

[0012] Real-time monitoring and risk control: Through the linkage of the positioning plate, auxiliary mechanism, and limit switch, the device can quickly detect displacement changes when the tension trolley becomes slightly loose, trigger the limit switch, and transmit the signal to the central control host, realizing real-time monitoring of the tension trolley's status. This process allows operators to detect potential loosening hazards immediately and take timely intervention measures, effectively avoiding problems such as belt misalignment and slippage caused by tension trolley loosening, and even preventing safety accidents, ensuring the efficient, safe, and stable operation of the belt conveyor.

[0013] It possesses long-term operational reliability: The cleaning structure, consisting of a guide groove, mounting base, mounting plate, and brush plate on the outer side of the top support flat iron of the track, allows the mounting base to slide along the guide groove during device operation, driving the brush plate to clean the heat dissipation vents on the back of the limit switch, preventing dust and debris from clogging the vents. This prevents the limit switch from malfunctioning due to overheating, further ensuring the long-term stable operation of the entire early warning device, reducing equipment maintenance frequency and costs, and improving the practicality and economy of the device. Attached Figure Description

[0014] Figure 1 This is one of the overall structural schematic diagrams of this utility model; Figure 2 This is a schematic diagram of the structure at point A of this utility model; Figure 3 This is the second schematic diagram of the overall structure of this utility model; Figure 4 This is a schematic diagram of the structure at point B of this utility model.

[0015] In the diagram: 1. Track; 2. Tensioning trolley; 3. Positioning plate; 4. Support flat iron; 5. Nut; 6. Bolt; 7. Limit switch; 8. First sliding groove; 9. First sliding block; 10. Support plate; 11. Vertical plate; 12. Telescopic rod; 13. Spring; 14. Second sliding groove; 15. Second sliding block; 16. Connecting rod; 17. Guide groove; 18. Mounting base; 19. Mounting plate; 20. Brush plate; 21. Heat dissipation vent. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-4 A belt conveyor tensioning trolley loosening early warning device, comprising: Track 1, with a tensioning trolley 2 mounted on the top of the track 1, and a positioning plate 3 fixedly connected to the front end of the tensioning trolley 2; The auxiliary mechanism includes a first sliding groove 8, which is provided on the outer side of the track 1. A first sliding block 9 is slidably installed inside the first sliding groove 8, and a support plate 10 is fixedly connected to the outer side of the first sliding block 9.

[0018] Please see Figure 1-4 A supporting flat iron 4 is installed on the top of the track 1, and a nut 5 is fixedly connected to the outside of the supporting flat iron 4. A bolt 6 is installed inside the nut 5, and a limit switch 7 is installed on the outside of the top of the supporting flat iron 4.

[0019] Please see Figure 1-4 The auxiliary mechanism also includes a vertical plate 11. The other end of the support plate 10 is fixedly connected to the top of the vertical plate 11. A telescopic rod 12 is installed at the top and bottom of the vertical plate 11. A spring 13 is installed on the outside of the telescopic rod 12. A second sliding groove 14 is opened on the inner wall of the vertical plate 11. A second sliding block 15 is slidably installed inside the second sliding groove 14, and the other end of the telescopic rod 12 is fixedly connected to the second sliding block 15. When the tensioning trolley 2 becomes loose, it will shift along the track 1, and the positioning plate 3 at its front end will move along with it. During the displacement, the positioning plate 3 will come into contact with the support plate 10 in the auxiliary mechanism and apply force. Affected by the thrust of the positioning plate 3, the support plate 10 will drive the first sliding block 9 fixed thereto to slide along the first sliding groove 8. At the same time, the support plate 10 will drive the vertical plate 11 at the top to shift synchronously. When the vertical plate 11 shifts, the second sliding groove 14 on its inner wall will limit the second sliding block 15, so that the second sliding block 15 will change position under the drive of the vertical plate 11. The second sliding block 15 will push the swing head of the limit switch 7 to swing through the rotating connecting rod 16.

[0020] Please see Figure 1-4 A connecting rod 16 is installed at the swing head of the limit switch 7, and the other end of the connecting rod 16 is rotatably connected to the inside of the second sliding block 15.

[0021] Please see Figure 1-4 The supporting flat iron 4 has a guide groove 17 on its outer side, and a mounting base 18 is slidably installed inside the guide groove 17. A mounting plate 19 is fixedly connected to the front end of the mounting base 18, and a brush plate 20 is installed at the front end of the mounting plate 19. A heat dissipation vent 21 is provided on the back of the limit switch 7. The mounting plate 19 fixed to the front end of the mounting base 18 drives the brush plate 20 to move synchronously. During the movement, the brush plate 20 can clean the heat dissipation vent 21 on the back of the limit switch 7, removing dust, debris, etc. accumulated at the heat dissipation vent 21, preventing the heat dissipation vent 21 from being blocked and preventing the internal heat of the limit switch 7 from failing to dissipate in time, thus preventing the limit switch 7 from malfunctioning due to overheating.

[0022] Please see Figure 1-4 The limit switch 7 is connected to the central control host and is electrically controlled by the central control host.

[0023] Working principle: When the belt conveyor is running normally, the tensioning trolley 2 is stably stopped at the top of the track 1, and the positioning plate 3 fixed at its front end is in the initial position. At this time, the components in the auxiliary mechanism also remain in the initial state. The first sliding block 9 is stationary in the first sliding groove 8 outside the track 1. The support plate 10 and the vertical plate 11 at the top of the support plate 10, which are fixedly connected to the first sliding block 9, have no displacement. The telescopic rod 12 installed at the bottom of the top of the vertical plate 11 is in a natural extension and contraction state. The outer spring 13 is not compressed or stretched. The second sliding block 15 in the second sliding groove 14 on the inner wall of the vertical plate 11 also remains stationary. The connecting rod 16, which is rotatably connected to the second sliding block 15, is in the initial untriggered position due to the stationary state of the second sliding block 15. The limit switch 7 does not send a signal to the central control host. The central control host determines that the tensioning trolley 2 is not loose, and the whole device is in a normal monitoring standby state.

[0024] When the tensioning trolley 2 becomes loose, it will shift along the track 1, and the positioning plate 3 at its front end will move along with it. During the displacement, the positioning plate 3 will come into contact with the support plate 10 in the auxiliary mechanism and apply force. Affected by the thrust of the positioning plate 3, the support plate 10 will drive the first sliding block 9 fixed thereto to slide along the first sliding groove 8. At the same time, the support plate 10 will drive the vertical plate 11 at the top to move synchronously. When the vertical plate 11 moves, the second sliding groove 14 on its inner wall limits the second sliding block 15, causing the second sliding block 15 to change position under the action of the vertical plate 11. The second sliding block 15 will push the swing head of the limit switch 7 to swing through the rotating connecting rod 16. During this process, the telescopic rod 12 at the top and bottom of the vertical plate 11 will move along with the second sliding block 11. The second sliding block 15 extends and retracts as it moves. The spring 13 on the outside of the telescopic rod 12 compresses or stretches according to the extension and retraction state of the telescopic rod 12. The elastic restoring force of the spring 13 provides stable buffer support for the movement of the second sliding block 15, preventing the second sliding block 15 from being damaged due to excessive instantaneous force. On the other hand, it ensures that the thrust of the connecting rod 16 on the swing head of the limit switch 7 remains stable, preventing the swing head from becoming less flexible or damaged due to sudden changes in force, and ensuring that the limit switch 7 can be accurately triggered. After the limit switch 7 is triggered, it immediately transmits the signal of the tension carriage 2 loosening to the central control host. After receiving the signal, the central control host completes the early warning prompt through the preset electrical control program, realizing real-time monitoring and early warning of the loosening of the tension carriage 2.

[0025] Furthermore, during long-term operation of the device, the guide groove 17 on the outer side of the top support flat iron 4 of the track 1 cooperates with the mounting base 18. The mounting base 18 can slide along the guide groove 17. The mounting plate 19 fixed at the front end of the mounting base 18 drives the brush plate 20 to move synchronously. During the movement, the brush plate 20 can clean the heat dissipation vent 21 on the back of the limit switch 7, remove the dust and debris accumulated at the heat dissipation vent 21, and prevent the heat dissipation vent 21 from being blocked, which would prevent the heat inside the limit switch 7 from being unable to dissipate in time. This prevents the limit switch 7 from malfunctioning due to overheating, further ensuring the stability and reliability of the entire early warning device, and ensuring that it can continuously and accurately monitor and warn of the loosening of the tension trolley 2.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A belt conveyor tensioning trolley loosening early warning device, characterized in that, include: Track (1), a tensioning trolley (2) is installed on the top of the track (1), and a positioning plate (3) is fixedly connected to the front end of the tensioning trolley (2); The auxiliary mechanism includes a first sliding groove (8), which is provided on the outer side of the track (1). A first sliding block (9) is slidably installed inside the first sliding groove (8), and a support plate (10) is fixedly connected to the outer side of the first sliding block (9).

2. The belt conveyor tensioning trolley loosening early warning device according to claim 1, characterized in that: A support flat iron (4) is installed on the top of the track (1), a nut (5) is fixedly connected to the outside of the support flat iron (4), a bolt (6) is installed inside the nut (5), and a limit switch (7) is installed on the outside of the top of the support flat iron (4).

3. The belt conveyor tensioning trolley loosening early warning device according to claim 1, characterized in that: The auxiliary mechanism also includes a vertical plate (11), and the other end of the support plate (10) is fixedly connected to the top of the vertical plate (11). A telescopic rod (12) is installed at the top and bottom of the vertical plate (11), and a spring (13) is installed on the outside of the telescopic rod (12). A second sliding groove (14) is opened on the inner wall of the vertical plate (11), and a second sliding block (15) is slidably installed inside the second sliding groove (14). The other end of the telescopic rod (12) is fixedly connected to the second sliding block (15).

4. The belt conveyor tensioning trolley loosening early warning device according to claim 2, characterized in that: The limit switch (7) has a connecting rod (16) installed at its swing head, and the other end of the connecting rod (16) is rotatably connected to the inside of the second sliding block (15).

5. The belt conveyor tensioning trolley loosening early warning device according to claim 2, characterized in that: The support flat iron (4) has a guide groove (17) on its outer side. A mounting seat (18) is slidably installed inside the guide groove (17). A mounting plate (19) is fixedly connected to the front end of the mounting seat (18). A brush plate (20) is installed at the front end of the mounting plate (19). A heat dissipation vent (21) is provided on the back of the limit switch (7).

6. The belt conveyor tensioning trolley loosening early warning device according to claim 2, characterized in that: The limit switch (7) is connected to the central control host and is electrically controlled by the central control host.

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