Anti-tearing detection device for coal mine high-strength belt

Abstract

The utility model discloses an anti-tearing detection device for a coal mine high-strength belt. The anti-tearing detection device comprises a tearing detection mechanism for detecting the belt of a belt conveyor, the tearing detection mechanism comprises a cable blocking feeler lever arranged at the bottom of the belt, and cable blocking sensors are installed at the two ends of the cable blocking feeler lever respectively. A support is installed between the bottoms of the blocking cable sensors, the two ends of the support are rotationally connected with supporting mechanisms respectively, and the supporting mechanisms are lifted and supported at the bottom of the belt and reduce materials on the belt from falling off from the tearing opening. The supporting mechanism comprises a rotating lifting arm arranged in a rotating connection mode, and a long supporting cylinder is rotationally connected to the rotating lifting arm. The supporting mechanisms are synchronously pulled through the hinging and pulling structures, and the rotating lifting arms are synchronously pulled through the hinging and pulling structures to be lifted to the long supporting barrels to be supported at the bottom of the belt. The structure protects the belt from further aggravation of belt tearing. And the belt is supported in the mode, and the technical defects that the belt is broken due to further aggravation of tearing of the belt, and a large amount of materials are overturned are overcome.

Description

Technical Field

[0001] This utility model belongs to the field of high-strength conveyor belt tear detection technology, and in particular relates to a tear-proof detection device for high-strength conveyor belts in coal mines. Background Technology

[0002] Belt conveyors are frequently used in coal mining to transport materials over long distances. To meet the demands of high-load material transport, existing technologies employ high-strength belt conveyors. These belts are superior in thickness, length, tensile strength, and deformation resistance compared to conventional belts, thus enabling the transport of larger quantities of material.

[0003] However, as belts age and operate under high loads for extended periods, they become prone to tearing, most commonly longitudinal tears. If these tears are not detected and the machine stopped promptly, they will widen, making repairs extremely difficult. Most seriously, the belt may tip over or break, causing significant material spillage.

[0004] Therefore, in the existing technology, the most common way to install a sensor at the bottom of the belt is through a cable-stayed sensor structure. That is, the cable-stayed sensor is located below the belt. When the belt tears, the tear touches the cable-stayed sensor. Since the cable-stayed sensor is installed on the sensor, the cable-stayed sensor flips over and immediately sends a signal back to the equipment, triggering an alarm or immediate shutdown.

[0005] However, in actual use, the drawbacks are also obvious. For example, the cable can detect the tear in the belt but cannot effectively deal with it. Even if the belt is supported to prevent the tear from widening and the machine is stopped in time, the belt will still travel a distance. During this process, because the belt and the tear are not supported, the tear will widen under the action of the material and the pulling of the belt. A large amount of material will continue to fall, making subsequent belt repair and material cleaning complicated. Utility Model Content

[0006] Based on the above background, the purpose of this utility model is to provide a high-strength belt tear prevention detection device for coal mines.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A high-strength belt tear detection device for coal mines includes a tear detection mechanism for detecting belt tears of belt conveyors; the tear detection mechanism includes a cable-stopping contact rod located at the bottom of the belt, and cable-stopping sensors are respectively installed at both ends of the cable-stopping contact rod.

[0009] A bracket is installed between the bottom of the cable-blocking sensor, and a support mechanism is rotatably connected to both ends of the bracket. The support mechanism is raised to support the bottom of the belt, reducing the material on the belt from falling through the tear.

[0010] The supporting mechanism comprises a rotating lifting arm provided in a rotating connection, and a long supporting cylinder in a rotating connection on the rotating lifting arm;

[0011] The supporting mechanisms are synchronously pulled through the hinged pulling structure, and the rotating lifting arm is lifted to the long supporting cylinder for supporting at the bottom of the belt through the synchronous pulling of the hinged pulling structure.

[0012] Preferably, the bottom of the cable sensor is fixedly connected with a bottom mounting bracket, and the bottom mounting bracket is fixedly mounted on the top of the bracket.

[0013] Preferably, the left and right ends of the bracket are respectively rotatably connected with a first supporting mechanism and a second supporting mechanism.

[0014] Preferably, the first supporting mechanism comprises a first rotating lifting arm, and a first long supporting cylinder in a rotating connection on the first rotating lifting arm.

[0015] The second supporting mechanism comprises a second rotating lifting arm, and a second long supporting cylinder in a rotating connection on the second rotating lifting arm.

[0016] The first rotating lifting arm and the second rotating lifting arm each comprise a straight arm portion, and the straight arm portion is integrally formed with an L-shaped arm portion at both ends, and the first long supporting cylinder and the second long supporting cylinder are rotatably connected on the straight arm portion.

[0017] Preferably, the left and right ends of the bracket are respectively fixedly connected with a boss, and the L-shaped arm portion is rotatably connected on the boss.

[0018] Preferably, the rotating lifting arm comprises a first rotating wheel fixedly connected at the end position of the first rotating lifting arm, and the end of the second rotating lifting arm is fixedly connected with a second rotating wheel.

[0019] The bracket is rotatably connected with a driving rotating wheel, and the eccentric position of the driving rotating wheel is hingedly connected with the eccentric position of the first rotating wheel and the eccentric position of the second rotating wheel through a first pulling arm and a second pulling arm.

[0020] The driving motor is mounted on the driving rotating wheel.

[0021] Preferably, the two ends of the first pulling arm and the second pulling arm are respectively fixedly connected with a hinged seat, and the first rotating wheel, the second rotating wheel and the driving rotating wheel are fixedly connected with a pin shaft hingedly connected on the hinged seat.

[0022] Preferably, the bracket is fixedly connected with a boss body, and the driving motor is fixedly mounted on the boss body through a mounting rod.

[0023] Preferably, the bracket is rotatably connected with a material receiving disc, and the bracket is mounted with a turnover motor for driving the turnover of the material receiving disc.

[0024] Preferably, the bottom part of the support is respectively welded with a U-shaped mounting frame, and the U-shaped mounting frame is fixedly mounted on the rack of the belt conveyor.

[0025] The utility model has the following beneficial effects:

[0026] 1. When the first pull arm - first long support cylinder and the second pull arm - second long support cylinder are tilted to the left side and keep a certain safety distance from the belt in normal posture, the first pull arm - first long support cylinder and the second pull arm - second long support cylinder are synchronously turned to the vertical posture and supported at the bottom of the belt under the drive of the driving motor when the support needs to be lifted.

[0027] Under the friction of the belt, the first long support cylinder and the second long support cylinder automatically rotate. Under the support of the first long support cylinder and the second long support cylinder, the tearing force of the tearing opening is reduced due to the reduction of the gravity load of the belt, and the tearing opening will not be further torn under the support.

[0028] 2. The method can protect the belt and prevent the tearing of the belt from further intensifying. The method can support the belt and prevent the belt from being torn further to cause the technical defect of material overturning.

[0029] 3. The material receiving disc can receive the fallen gravel from the tearing opening of the belt. In the actual working process, a pressure sensor is installed on the material receiving disc according to the existing method. When the pressure reaches the threshold value of the pressure sensor, the overturning motor works to drive the material receiving disc to overturn and unload. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings needed in the embodiment or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the structures shown in the drawings without creative labor for those skilled in the art.

[0031] Figure 1 The utility model is an overall structure schematic view in the embodiment of the utility model;

[0032] Figure 2 The utility model is a structure schematic view of the support mechanism in the embodiment of the utility model;

[0033] Figure 3 The utility model is a structure schematic view in another perspective of the embodiment of the utility model; Figure 1

[0034] Figure 4 ​The front view of the embodiment of the present application Figure 1 The front view of the embodiment of the present application

[0035] Figure 5 The top view of the embodiment of the present application Figure 1 The top view of the embodiment of the present application

[0036] The realization, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0038] It should be noted that all the directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0039] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features or implicitly indicating the number of the indicated technical features. Therefore, the features with "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, and when the combination of the technical solutions appears contradictory or unachievable, it should be considered that the combination of the technical solutions does not exist, and is not within the protection scope required by the present application.

[0040] Embodiment 1

[0041] As Figures 1-5As shown, a coal mine high-strength belt tear detection device, including detecting the tear detection mechanism of the belt conveyor belt; With the same structure as the existing longitudinal belt tear detection device, the tear detection mechanism includes a cable touch lever 12 (the cable touch lever 12 is similar to a V shape, and the cable touch lever 12 is supported on the V-shaped support roller) arranged at the bottom of the belt. Both ends of the cable touch lever 12 are respectively provided with a cable sensor 11. The structure and working principle of the cable sensor 11 and the cable touch lever 12 are the same as those of the existing longitudinal belt tear detection device. That is, when the belt has a tear, the tear touches the cable touch lever 12, and the cable touch lever 12 is turned over. At this time, the cable sensor 11 senses the signal (the same as the existing mode, the cable touch lever 12 is installed on the signal input end of the cable sensor 11 through the connecting arm 121), and feeds back to the equipment, and takes measures such as stopping and alarming.

[0042] The specific structure and working principle of the above-mentioned cable touch lever 12 and cable sensor 11 can be known by those skilled in the art by consulting technical manuals and dictionaries.

[0043] The bottom of the above-mentioned cable sensor 11 is provided with a support 2 (specifically, the bottom of the cable sensor 11 is fixedly connected with a bottom mounting bracket, and the bottom mounting bracket is fixedly installed on the top of the support 2). The support 2 is installed on the rack of the belt conveyor, specifically on the roller rack (that is, the whole device is arranged between the rollers).

[0044] Specifically, the bottom of the support 2 is respectively welded with a U-shaped mounting bracket 21, and the U-shaped mounting bracket 21 is fixedly installed on the rack by bolts.

[0045] In order to realize the protection measures immediately after the belt is torn, and avoid the further enlargement of the belt tear (the cable sensor 11 and the cable touch lever 12 sense the belt tear, and stop in time, and the belt still moves a distance under the mechanical inertia), therefore, the two ends of the support 2 are respectively rotatably connected with a supporting mechanism, and the supporting mechanism is lifted to support at the bottom of the belt, so as to reduce the material on the belt from falling from the tear.

[0046] Specifically, the supporting mechanism is lifted to support on the belt, the gravity load of the belt in the tear interval is reduced, and after the gravity load of the belt is reduced by supporting, the force of the moving belt pulling the tear is reduced, so as to protect the belt tear and avoid further tearing.

[0047] Specifically, the supporting mechanism includes a rotatably connected rotary lifting arm, and a long supporting cylinder is rotatably connected to the rotary lifting arm; The supporting mechanisms are synchronously pulled through a hinge pulling structure, and the rotary lifting arm is lifted to the long supporting cylinder supporting at the bottom of the belt through the synchronous pulling of the hinge pulling structure.

[0048] The hinge pulling structure realizes synchronous lifting of the bilateral supporting mechanisms to support on the belt. The belt is protected.

[0049] Embodiment 2

[0050] As Figures 1-5 shown, the embodiment is based on the structure of embodiment 1, and the left and right ends of the support 2 are respectively rotationally connected with the first supporting mechanism and the second supporting mechanism.

[0051] Specifically, the first supporting mechanism includes a first rotating lifting arm 52, and a first long supporting cylinder 51 is rotationally connected to the first rotating lifting arm 52; similarly, the second supporting mechanism includes a second rotating lifting arm 42, and a second long supporting cylinder 41 is rotationally connected to the second rotating lifting arm 42.

[0052] The first long supporting cylinder 51 and the second long supporting cylinder 41 are internally hollow structures, which are used to reduce weight and increase lifting flexibility.

[0053] Specifically, according to the existing rotational connection mode, bearings are installed on the two end cylinder openings of the first long supporting cylinder 51 and the second long supporting cylinder 41, and the inner rings of the bearings are fixed to the corresponding first rotating lifting arm 52 and second rotating lifting arm 42.

[0054] Meanwhile, the first rotating lifting arm 52 and the second rotating lifting arm 42 both include straight arm portions, and L-shaped arm portions are integrally formed at the two ends of the straight arm portions, and the first long supporting cylinder 51 and the second long supporting cylinder 41 are rotationally connected to the straight arm portions. Specifically, the left and right ends of the support 2 are respectively fixedly connected with bosses, and the L-shaped arm portions are rotationally connected to the bosses (similarly, the same as the existing mode, bearings suitable for rotational connection are installed on the bosses).

[0055] The rotating lifting arm includes a first rotating wheel 53 fixedly connected to the end position of the first rotating lifting arm 52, and a second rotating wheel 43 is fixedly connected to the end of the second rotating lifting arm 42; a driving rotating wheel 61 is rotationally connected to the support 2 (the driving rotating wheel 61 is fixedly connected with an axle, and the axle is rotationally connected to a bearing seat installed on the side wall of the support 2, which is the same as the existing rotational connection mode). Meanwhile, the eccentric positions of the driving rotating wheel 61 are respectively hingedly connected to the eccentric positions of the first rotating wheel 53 and the second rotating wheel 43 through a first pull arm 54 and a second pull arm 44; and a driving motor 6 is installed on the driving rotating wheel 61 (a boss body is fixedly connected to the support 2, and the driving motor 6 is fixedly installed on the boss body through an installation rod).

[0056] The two ends of the first pull arm 54 and the second pull arm 44 are respectively fixedly connected with hinged seats, and pin shafts hingedly connected to the hinged seats are fixedly connected to the first rotating wheel 53, the second rotating wheel 43, and the driving rotating wheel 61.

[0057] Specifically, the first pull arm 54 and the second pull arm 44 are symmetrically arranged upward and downward.

[0058] In the normal position, the first pull arm 54-first long support cylinder 51 and the second pull arm 44-second long support cylinder 41 are tilted to the left and maintain a certain safe distance from the belt. When it is necessary to lift the support, the drive wheel 61 rotates clockwise under the drive of the drive motor. During the rotation, the first pull arm 54 pulls the first wheel 53 to rotate, and the second pull arm 44 pulls the second wheel 43 to rotate. Then, the first pull arm 54-first long support cylinder 51 and the second pull arm 44-second long support cylinder 41 are simultaneously flipped to a vertical position and supported at the bottom of the belt.

[0059] Under the friction of the belt, the first long support sleeve 51 and the second long support sleeve 41 rotate automatically. Supported by the first long support sleeve 51 and the second long support sleeve 41, the weight load of the belt is reduced, the tearing force of the tear is reduced, and the tear will not further accelerate tearing under the support.

[0060] The above method protects the conveyor belt from further tearing. It also supports the belt, preventing it from breaking due to further tearing and thus avoiding the technical drawback of large-scale material spillage.

[0061] Example 3

[0062] like Figures 1-5 As shown, in this embodiment, based on the structure of embodiment 2, a material support plate 31 is rotatably connected between the brackets 2 (a rotating shaft is installed on the front and rear side walls of the material support plate 31, and the rotating shaft is rotatably connected to the bracket 2). A flipping motor 32 that drives the material support plate 31 to flip is installed on the bracket 2. Similarly, the output shaft of the flipping motor 32 is fixed to the rotating shaft, and the flipping motor 32 is fixed to the bracket 2 by means such as bolts.

[0063] The material receiving plate 31 is used to receive the crushed stone falling from the belt tear.

[0064] Example 4

[0065] like Figures 1-5 As shown, in this embodiment, based on the structure of embodiment 3, in actual operation, a pressure sensor (not shown in the figure) is installed on the material receiving tray 31 in the existing manner. When the pressure reaches the threshold of the pressure sensor, the flipping motor 32 works to drive the material receiving tray 31 to flip and unload the material.

[0066] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A coal mine high-strength belt anti-tearing detection device, comprising a tearing detection mechanism for detecting the belt of a belt conveyor; the tearing detection mechanism comprises a cable touch lever arranged at the bottom of the belt, and cable sensors are arranged at the two ends of the cable touch lever; characterized in that a support is arranged between the bottoms of the cable sensors, and support mechanisms are rotatably connected at the two ends of the support, which are lifted and supported at the bottom of the belt to reduce the falling of materials on the belt from the tearing opening; the support mechanism comprises a rotationally connected rotating lifting arm, and a long support cylinder is rotatably connected to the rotating lifting arm; the support mechanisms are synchronously pulled through a hinge pulling structure, and the rotating lifting arm is lifted to the long support cylinder supported at the bottom of the belt through synchronous pulling of the hinge pulling structure.

2. The coal mine high-strength belt anti-tearing detection device according to claim 1, characterized in that, The bottom of the cable sensor is fixedly connected with a bottom mounting bracket, and the bottom mounting bracket is fixedly installed on the top of the support.

3. The coal mine high-strength belt anti-tearing detection device according to claim 1, characterized in that, The left and right ends of the support are rotatably connected with first and second support mechanisms, respectively.

4. The coal mine high-strength belt anti-tearing detection device according to claim 3, characterized in that, The first support mechanism comprises a first rotating lifting arm, and a first long support cylinder is rotatably connected to the first rotating lifting arm; The second support mechanism comprises a second rotating lifting arm, and a second long support cylinder is rotatably connected to the second rotating lifting arm; The first and second rotating lifting arms each comprise a straight arm portion, and L-shaped arm portions are integrally formed at the two ends of the straight arm portion, and the first and second long support cylinders are rotatably connected to the straight arm portion.

5. The coal mine high-strength belt anti-tearing detection device according to claim 4, characterized in that, The left and right ends of the support are fixedly connected with convex seats, and the L-shaped arm portions are rotatably connected to the convex seats.

6. The coal mine high-strength belt anti-tearing detection device according to claim 4, characterized in that, The rotating lifting arm comprises a first rotating wheel fixedly connected to the end portion of the first rotating lifting arm, and a second rotating wheel is fixedly connected to the end portion of the second rotating lifting arm; a driving rotating wheel is rotatably connected to the support, and the eccentric positions of the driving rotating wheel are hingedly connected to the eccentric positions of the first and second rotating wheels through first and second pulling arms, respectively; The driving rotating wheel is provided with a driving motor.

7. The coal mine high-strength belt anti-tearing detection device according to claim 6, characterized in that, The two ends of the first and second pulling arms are fixedly connected with hinge seats, and the first and second rotating wheels and the driving rotating wheel are fixedly connected with pin shafts hingedly connected to the hinge seats.

8. The coal mine high-strength belt anti-tearing detection device according to claim 6, characterized in that, The support is fixedly connected with a convex body, and the driving motor is fixedly installed on the convex body through an installation rod.

9. The coal mine high-strength belt anti-tearing detection device according to claim 1, characterized in that, The support is rotatably connected with a material receiving disc, and a turnover motor is installed on the support to turn over the material receiving disc.

10. The coal mine high-strength belt anti-tearing detection device according to claim 1, characterized in that, The bottom of the support is welded with a U-shaped mounting bracket, and the U-shaped mounting bracket is fixedly installed on the rack of the belt conveyor.

Images