Tearing detection device suitable for belt conveyor

Abstract

The utility model relates to a tearing detection device suitable for a belt conveyor, which is arranged on a belt conveyor rack and comprises a mechanical detection part and a weight detection part, and the mechanical detection part comprises a fitting rod, a detection rod, a balancing weight, a bearing seat, a platform, a stop lever, a stop block, a proximity switch, a trigger plate and a foundation rod; the weight detection part comprises a receiving disc, a weight sensor, a side plate and a support. The device is simple in structure, convenient to install, low in maintenance cost, capable of detecting most belt conveyor tearing problems, good in stability and reliability, low in false triggering probability and capable of stably running for a long time in a severe industrial environment.

Description

Technical Field

[0001] This patent application belongs to the technical field of belt conveyor detection devices. More specifically, it relates to a tear detection device applicable to belt conveyors. Background Art

[0002] As a continuous conveying device, belt conveyors are widely used in industries such as coal, mining, metallurgy, and chemical engineering. As Figure 1 shown, during the production process, belt conveyors face various fault risks, among which the tear fault is particularly prominent. Once a tear occurs, it will not only cause material leakage but also may lead to serious consequences such as equipment shutdown and production interruption. Therefore, it is of great significance to install an efficient and accurate tear detection device on the belt conveyor to ensure production safety and improve production efficiency.

[0003] The problem of belt tearing has always been the main factor affecting its stable operation and production efficiency. The traditional method for detecting belt tearing is generally to install a detection rod under the belt. When the belt tears, it hits the detection rod, giving a trigger signal to the system. When the operation system receives the tear trigger signal, the belt conveyor stops.

[0004] This detection method has the following problems: First, the detection rod is prone to false triggering, causing false faults and affecting production efficiency. Second, there may be belt tears that cannot hit the detection rod. For example, there are through injuries on the belt, but the belt is adhered, and in this case, the detection fails, which will increase the loss of the belt conveyor equipment.

[0005] To solve the above problems, considering various aspects and combining with the actual situation, it is necessary to design a set of tear detection devices applicable to belt conveyors, which can not only reduce the probability of false triggering but also not miss tear faults. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a tear detection device applicable to belt conveyors, which can reduce the probability of false triggering and at the same time ensure tear faults.

[0007] To solve the above problems, the technical solution adopted by this utility model is:

[0008] A tear detection device applicable to belt conveyors, installed on the belt conveyor frame, includes a mechanical detection part and a weight detection part.

[0009] The mechanical detection part includes a bearing seat fixed on the belt conveyor frame, a detection rod with both ends installed in the bearing seat and rotatable along the belt running direction, a fitting mechanism arranged on the upper half of the detection rod for fitting the belt angle, a counterweight block installed on the lower half of the detection rod, stop rods installed at both ends of the detection rod and close to the bearing seat, a stop block installed on the belt conveyor frame and corresponding to the forward and backward rotation amplitude of the stop rods, a proximity switch installed on one of the stop blocks, and a trigger plate installed on the stop rod and corresponding to the proximity switch. The proximity switch is communicatively connected to the belt conveyor operation system;

[0010] The weight detection part is located on one side of the mechanical detection part. The weight detection part includes a bracket, side plates arranged on both sides of the bracket, a plurality of weight sensors located on the bracket, and a receiving plate located on the weight sensors. The side plates are fixed on the belt conveyor frame, and the weight sensors are communicatively connected to the belt conveyor operation system.

[0011] Furthermore, the fitting mechanism includes a base rod vertically arranged on the detection rod and a fitting rod arranged on the base rod. The fitting rod and the base rod are in the same plane, and the fitting rod is trapezoidal.

[0012] Furthermore, it further includes a platform not in the same plane as the base rod. The platform is located on the lower half of the detection rod, and the counterweight block is located on the platform.

[0013] Furthermore, the base rod is rectangular, and the platform is a rectangular frame.

[0014] Furthermore, there are two stop rods on the same side of the detection rod. The two stop rods are cross - arranged (the whole is in a fork - like or vertical shape). The two stop blocks corresponding to the above two stop rods are arranged front and back along the belt running direction, and the trigger plate is located on one of the stop rods.

[0015] Furthermore, the receiving plate is rectangular, circular, long - waisted or oval.

[0016] Furthermore, the side plate is L - shaped, and the side plate is fastened to the belt conveyor frame by bolts.

[0017] Furthermore, the bracket is a channel steel.

[0018] Due to the adoption of the above - mentioned technical solutions, the beneficial effects obtained by the present utility model are:

[0019] 1. The device has a simple structure, is easy to install, and has a low maintenance cost.

[0020] 2. The use of this device can detect most belt tears, and at the same time, the probability of false triggering is low.

[0021] 3. The device has a wide application range, is applicable to various equipment using belt conveyors, and the increased cost is low, which is extremely economical. Description of the Drawings

[0022] Figure 1 It is the layout diagram of the belt conveyor.

[0023] Figure 2 It is the overall structure schematic diagram of this device.

[0024] Figure 3 It is the structure schematic diagram of the mechanical detection part in this device.

[0025] Figure 4 It is the structure schematic of the weight detection part in this device Figure 1 .

[0026] Figure 5 It is the structure schematic of the weight detection part in this device Figure 2 .

[0027] Wherein:

[0028] 1. Mechanical detection part, 10. Fitting rod, 11. Detection rod, 12. Counterweight, 13. Bearing seat, 14. Platform, 15. Stop rod, 16. Stop block, 17. Proximity switch, 18. Trigger plate, 19. Foundation rod.

[0029] 2. Weight detection part, 21. Receiving plate, 22. Weight sensor, 23. Side plate, 24. Bracket.

[0030] 3. Belt conveyor frame. Specific implementation mode

[0031] The following further elaborates on the present utility model in conjunction with embodiments.

[0032] A tearing detection device applicable to a belt conveyor, as Figure 2 , is installed on the belt conveyor frame 3, and is characterized in that it includes a mechanical detection part 1 and a weight detection part 2.

[0033] As Figure 3 , the mechanical detection part 1 includes a bearing seat 13 fixed on the belt conveyor frame 3, a detection rod 11 with both ends installed in the bearing seat 13 and rotatable along the belt running direction, a fitting mechanism for fitting the belt angle arranged on the upper half of the detection rod 11, a counterweight 12 installed on the lower half of the detection rod 11, stop rods 15 installed at both ends of the detection rod 11 and close to the bearing seat 13, stop blocks 16 installed on the belt conveyor frame 3 and corresponding to the forward and backward rotation amplitude of the stop rods 15, a proximity switch 17 installed on one of the stop blocks 16, and a trigger plate 18 installed on the stop rod 15 and corresponding to the proximity switch 17, and the proximity switch 17 is communicatively connected to the belt conveyor operation system.

[0034] As Figure 2 , Figure 4 , Figure 5, the weight detection part 2 is located on one side of the mechanical detection part 1. The weight detection part 2 includes a bracket 24, side plates 23 arranged on both sides of the bracket 24, a plurality of weight sensors 22 located on the bracket 24, and a tray 21 located on the weight sensors 22. The side plates 23 are fixed on the belt conveyor frame 3, and the weight sensors 22 are communicatively connected to the belt conveyor operation system.

[0035] Such as Figure 2 , Figure 3 , the fitting mechanism includes a base rod 19 vertically arranged on the detection rod 11 and a fitting rod 10 arranged on the base rod 19. The fitting rod 10 and the base rod 19 are in the same plane, and the fitting rod 10 is trapezoidal. In addition, it also includes a platform 14 not in the same plane as the base rod 19. The platform 14 is located in the lower half of the detection rod 11, and a counterweight 12 is located on the platform 14. Preferably, the base rod 19 is rectangular and the platform 14 is a rectangular frame.

[0036] In Figure 2 , Figure 3 , there are two stop rods 15 on the same side of the detection rod 11. The two stop rods 15 are cross - arranged, and the whole is in a fork - like or vertical shape. The two stop blocks 16 corresponding to the above two stop rods 15 are arranged one in front of and the other behind along the running direction of the belt. In this way, there are 2 groups of 4 stop blocks 16 in total, and the trigger plate 18 can be located on one of the stop rods 15.

[0037] In Figure 4 , Figure 5 , the tray 21 is rectangular, circular, long - waisted or oval, the side plates 23 are L - shaped, the side plates 23 are fastened to the belt conveyor frame 3 by bolts, and the bracket 24 is a channel steel.

[0038] During the overall manufacturing, Figure 3 is designed with a detection rod 11 that can rotate along the running direction of the belt. The upper half of the detection rod 11 is a trapezoidal fitting rod 10 for fitting the angle of the belt. When a torn belt head passes by, it can directly touch the detection rod 11. From Figure 3Next, look at the lower half of the tearing rod 11. A small platform 14 is designed on the lower half, and a counterweight 12 is installed on it. The function of the counterweight 12 is to adjust the force required when the detection rod 1 is triggered. By adding the counterweight 12, vibrations during the operation of the belt conveyor equipment and occasional accidental touches will not trigger the detection rod 11. Bearing seats 13 are provided on both sides of the detection rod 11, and the bearing seats 13 are fixed to the belt rack 14 by bolts. Stop rods 15 are designed at positions near the bearing seats 13 on both sides of the detection rod 11, and corresponding stop blocks 16 are installed on the belt conveyor rack 14. The function of the stop block 16 is to limit the rotation angle of the detection rod 11 and prevent the tearing rod 11 from hitting the belt. A proximity switch 17 is installed on one of the stop blocks 16, and a trigger plate 18 is provided on the corresponding stop rod 15. After the detection rod 11 rotates, it triggers the proximity switch 17 and feeds back an electrical signal of tearing trigger to the belt conveyor operation system.

[0039] Figure 4 As shown, a rectangular material receiving tray 21 is designed. Four weight sensors 22 are installed below the receiving tray 21. Below the sensors 22 are two channel steels for support. L-shaped side plates 23 are welded on both sides of the channel steels and hung on the belt rack 14 and fastened by bolts. A weight limit is set for this part. When there is a through tearing injury without a belt head, the material spills onto the receiving tray 21 through the tearing opening, and an electrical signal of tearing trigger is fed back to the belt conveyor operation system.

[0040] Under the combined detection of these two parts, most belt conveyor tearing problems can be detected. At the same time, this device also has good stability and reliability and can operate stably for a long time in a harsh industrial environment.

Claims

1. A tear detection device suitable for a belt conveyor, mounted on a belt conveyor frame (3), characterized in that: It includes a mechanical detection part (1) and a weight detection part (2). The mechanical detection part (1) comprises a bearing seat (13) fixed on a belt conveyor frame (3), a detection rod (11) with both ends mounted in the bearing seat (13) and rotatable along the running direction of the belt, a fitting mechanism arranged on the upper half of the detection rod (11) for fitting the angle of the belt, a counterweight (12) mounted on the lower half of the detection rod (11), a stop rod (15) mounted on both ends of the detection rod (11) and close to the bearing seat (13), a stop block (16) mounted on the belt conveyor frame (3) and corresponding to the forward and backward rotation amplitude of the stop rod (15), a proximity switch (17) mounted on one of the stop blocks (16), and a trigger plate (18) mounted on the stop rod (15) and corresponding to the proximity switch (17), wherein the proximity switch (17) is communicatively connected to the belt conveyor running system; The weight detection part (2) is located on one side of the mechanical detection part (1), and comprises a bracket (24), side plates (23) arranged on both sides of the bracket (24), a plurality of weight sensors (22) located on the bracket (24), and a receiving plate (21) located on the weight sensor (22). The side plates (23) are fixed on the belt conveyor frame (3), and the weight sensor (22) is communicatively connected to the belt conveyor operation system.

2. A tear detection device suitable for a belt conveyor according to claim 1, characterized in that: The laminating mechanism comprises a base rod (19) vertically arranged on the detection rod (11) and a laminating rod (10) arranged on the base rod (19); the laminating rod (10) and the base rod (19) are located on the same plane, and the laminating rod (10) is trapezoidal.

3. A tear detection device suitable for a belt conveyor according to claim 2, characterized in that: It also includes a platform (14) that is not in the same plane as the base rod (19), the platform (14) is located at the lower half of the detection rod (11), and the counterweight (12) is located on the platform (14).

4. A tear detection device suitable for a belt conveyor according to claim 2, characterized in that: The base rod (19) is rectangular, and the platform (14) is a rectangular frame.

5. The tear detection device for a belt conveyor according to claim 1, characterized in that: There are two stop rods (15) located on the same side of the detection rod (11), and the two stop rods (15) are arranged crosswise. There are two stop blocks (16) corresponding to the two stop rods (15) arranged front and back along the running direction of the belt, and the trigger plate (18) is located on one of the stop rods (15).

6. The tear detection device for a belt conveyor according to claim 1, characterized in that: The receiving plate (21) is rectangular, circular, long waist-shaped or oval.

7. A tear detection device suitable for a belt conveyor according to claim 1, characterized in that: The side plate (23) is L-shaped and is fastened to the belt conveyor frame (3) by bolts.

8. The tear detection device for a belt conveyor according to claim 1, characterized in that: The support (24) is a channel steel.

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