Belt edge anti-gnawing device

Abstract

The utility model belongs to the technical field of coal belt conveyor equipment, and particularly relates to a belt edge anti-gnawing device, which comprises a support frame, a belt edge anti-gnawing device and a belt edge anti-gnawing device, the two telescopic assemblies are arranged up and down, and each telescopic assembly comprises a fixing plate, a connecting rod, a limiting seat and an elastic piece; an avoiding hole I is formed in the fixed plate; one end of the connecting rod is connected with the limiting seat, and the other end penetrates through the avoiding hole I and is in threaded connection with a blocking cap; an avoiding hole II is formed in the limiting seat; the elastic piece is sleeved on the connecting rod; the upper fixing plate and the lower fixing plate are connected through a locking plate. The top of the upper fixing plate is hinged to the supporting frame. The rotating shaft penetrates through the middle of the rotating sleeve; the two ends of the rotating shaft penetrate through the upper and lower avoiding holes II respectively and are fixed through bolts; and the switch mounting plate is fixed on the vertical rods on the two sides of the support frame, and an alarm limit switch and a stop limit switch are arranged on the switch mounting plate. The device can solve the problem that early warning and stopping cannot be carried out in time when the deviation running route of the belt is large, and has a good market application prospect.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal belt conveyor equipment, and in particular relates to a belt edge anti-gnaw device. Background Art

[0002] The existing coal conveyor belt head lacks a belt edge anti-gnaw detection device. When conveying materials, once the coal conveyor belt has an incorrect drop point or slips, it is very easy for the conveyor belt to rub against the steel structure of the coal drop bucket, causing edge gnawing damage, tearing, and even fire accidents, seriously threatening the safety of personnel and equipment.

[0003] The patent with application number CN202022755390.7 discloses a belt conveyor return anti-wear roller lifting lug, including a lifting lug body, a U-shaped roller is arranged in the middle of the lifting lug body, a U-shaped roller is arranged in the middle of the lifting lug body, a top plate is arranged on the top of the lifting lug body, a left side plate is arranged on the left side of the lifting lug body, a right side plate is arranged on the right side of the lifting lug body, and a bottom plate is arranged at the bottom of the lifting lug body. The utility model of the belt conveyor return anti-wear roller lifting lug not only protects the belt and avoids the belt edge being stuck between the lifting lug and the return roller to cause tearing damage, but also prevents the steel structure of the lifting lug from being worn by the belt. However, the scheme of the utility model cannot warn and stop when the belt deviates from the running route to a large extent, and there is a risk of the accident expanding. To this end, the present application provides a new belt edge anti-gnaw device.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The utility model aims to provide a belt edge anti-biting device to solve the problem that when the belt deviates greatly from the running route, early warning and prevention cannot be carried out in time, resulting in the risk of accident expansion.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A belt edge anti-biting device, comprising:

[0008] Two support frames are symmetrically arranged; the support frame is in the shape of the letter "n" and has a horizontal bottom plate at the bottom;

[0009] The telescopic assembly is provided with two upper and lower parts, including a fixing plate, a connecting rod, a limiting seat and an elastic member; the fixing plate is provided with an avoidance hole 1; one end of the connecting rod is connected and fixed to the limiting seat, and the other end passes through the avoiding hole 1 and is threadedly connected to a stop cap; the limiting seat is provided with an avoidance hole 2; the elastic member is sleeved on the connecting rod, and its two ends are respectively abutted on the fixing plate and the limiting seat; the upper and lower fixing plates are connected by a locking plate, and the two ends of the locking plate are respectively connected and fixed to the upper and lower fixing plates by bolts; the top of the fixing plate located at the top is hinged on the support frame;

[0010] The sleeve is rotated, and the middle of the sleeve is penetrated by the shaft; the two end extension sections of the shaft respectively pass through the avoidance holes 2 opened on the upper and lower limit seats, and are fixed by bolts;

[0011] A switch mounting plate, whose two ends are respectively fixed on the vertical rods on both sides of the support frame, is provided with an alarm limit switch and a stop limit switch; the alarm limit switch is triggered by the fixed plate located below, and the stop limit switch is triggered by the stop cap on the connecting rod located below.

[0012] Preferably, the upper limit seat is provided with a protective plate near one end of the belt, and the protective plate is arranged in an arc surface toward one end of the belt.

[0013] Preferably, the elastic will include pad 1, pad 2 and a compression spring; pad 1 abuts against the fixed plate, and pad 2 abuts against the limit seat; the compression spring is sleeved on the connecting rod, and its two ends are respectively connected to pad 1 and pad 2.

[0014] Preferably, a avoidance hole three for the connecting rod to pass through is provided in the middle of the pad one and the pad two.

[0015] Preferably, the alarm limit switch is located on the side of the middle horizontal plate of the switch mounting plate facing the belt; a switch box is fixed to the switch mounting plate by bolts, and the stop limit switch is located inside the switch box.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] (1) The belt edge anti-biting device of the utility model is provided with two upper and lower telescopic components on the support frame, which triggers the warning limit switch and the stop limit switch in sequence when the belt deviates from the running route, and performs early warning and stopping operations in time, which is helpful to avoid the expansion of accident risks.

[0018] (2) The belt edge anti-biting device of the utility model has a retractable assembly with a rotating shaft and a rotating sleeve near one end of the belt. When the belt contacts the rotating sleeve, the rotating sleeve can rotate around the rotating shaft to avoid serious wear on the belt.

[0019] (3) The belt edge anti-biting device of the utility model has an elastic member on the telescopic assembly. When the belt deviates from the running route, it can push the rotating sleeve to compress the compression spring along the direction of the connecting rod, so that the stop cap at one end of the connecting rod triggers the stop limit switch; after the belt stops moving, the rotating sleeve returns to the initial position under the elastic force of the compression spring, so as to be ready for the next detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an external schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the telescopic assembly of the utility model installed on the support frame;

[0022] Figure 3 It is a side schematic diagram of the support frame of the utility model;

[0023] Figure 4 It is a schematic diagram of the telescopic assembly of the utility model;

[0024] Figure 5 It is an exploded view of the telescopic component located above;

[0025] Description of main reference numerals:

[0026] 1. Support frame; 2. Bottom plate; 3. Fixed plate; 4. Connecting rod; 5. Limit seat; 6. Avoidance hole 1; 7. Stop cap; 8. Avoidance hole 2; 9. Locking plate; 10. Rotating sleeve; 11. Rotating shaft; 12. Switch mounting plate; 13. Alarm limit switch; 14. Stop limit switch; 15. Protective plate; 16. Pad 1; 17. Pad 2; 18. Compression spring; 19. Avoidance hole 3; 20. Switch box; 21. Belt. DETAILED DESCRIPTION

[0027] The following is a clear and complete description of the technical solution of the utility model patent. Obviously, the described embodiments are part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] See attached Figure 1-5 , a belt edge anti-biting device, comprising:

[0031] Two support frames 1 are symmetrically arranged; the support frame 1 is in the shape of the letter "n", and a horizontal bottom plate 2 is arranged at the bottom;

[0032] The telescopic assembly is provided with two pieces, one above and one below, including a fixing plate 3, a connecting rod 4, a limiting seat 5 and an elastic member; an avoidance hole 6 is provided on the fixing plate 3; one end of the connecting rod 4 is connected and fixed to the limiting seat 5, and the other end passes through the avoidance hole 6 and is threadedly connected to a stop cap 7; an avoidance hole 2 8 is provided on the limiting seat 5; the elastic member is sleeved on the connecting rod 4, and its two ends are respectively abutted on the fixing plate 3 and the limiting seat 5; the upper and lower fixing plates 3 are connected by a locking plate 9, and the two ends of the locking plate 9 are respectively connected and fixed to the upper and lower fixing plates 3 by bolts, which can ensure the synchronous movement of the two fixing plates 3; the top of the fixing plate 3 located above is hinged on the support frame 1, which is convenient for the overall rotation of the telescopic assembly to a certain angle;

[0033] The rotating sleeve 10 is penetrated by the rotating shaft 11 in the middle, and can rotate around the rotating shaft 11 when in contact with the belt 21; the two end extension sections of the rotating shaft 11 respectively pass through the avoidance holes 8 opened on the upper and lower limit seats 5, and are fixed by bolts;

[0034] The switch mounting plate 12 has its two ends respectively fixed on the vertical bars on both sides of the support frame 1, and is provided with an alarm limit switch 13 and a stop limit switch 14; the alarm limit switch 13 is triggered by the fixed plate 3 located below, and the stop limit switch 14 is triggered by the stop cap 7 on the connecting rod 4 located below.

[0035] In this embodiment, a protective plate 15 is provided at one end of the upper limit seat 5 close to the belt 21. The protective plate 15 is arranged to be an arc surface toward the end of the belt 21, which can limit the belt 21 that deviates from the running route.

[0036] It should be noted that the elastic will include pad 16, pad 2 17 and compression spring 18; pad 16 abuts against the fixed plate 3, pad 2 17 abuts against the limit seat 5; compression spring 18 is sleeved on the connecting rod 4, and its two ends are respectively connected to pad 16 and pad 2 17; the middle of pad 16 and pad 2 17 are provided with avoidance hole 3 19 for the connecting rod 4 to pass through. When the stop cap 7 is tightened on the connecting rod 4, the compression spring 18 is in a compressed state. Since the outer diameter of the stop cap 7 is larger than the inner diameter of the avoidance hole 1 6, it can not only prevent the connecting rod 4 from falling out of the limit hole 1, but also keep the telescopic assembly intact.

[0037] The alarm limit switch 13 is located on the side of the middle horizontal plate of the switch mounting plate 12 facing the belt 21, so that it can be easily triggered by the fixing plate 3 located below. A switch box 20 is fixed on the switch mounting plate 12 by bolts, and the stop limit switch 14 is located inside the switch box 20. When the telescopic assembly rotates a certain angle to trigger the alarm limit switch 13 by the fixing plate 3 located below, the connecting rod 4 and the stop cap 7 located below are just aligned with the switch box 20. When the belt 21 continues to deviate from the original route, it will push the rotating sleeve 10 to compress the compression spring 18, so that the connecting rod 4 and the stop cap 7 enter the switch box 20 to trigger the stop limit switch 14.

[0038] In actual use, two support frames 1 equipped with telescopic components need to be placed on both sides of the belt 21, and the rotating rollers are as close to the edge of the belt 21 as possible. Figure 1 It can be seen that the telescopic assembly is in an inclined state due to the effect of gravity, and the rotating drum is also in an inclined state, so as to better contact and bear force with the edge of the belt 21.

[0039] When the material drop point is not straight or slips during the material conveying process, causing the belt 21 to deviate from the running route, the edge of the belt 21 will first contact the rotating roller; when the deviation of the belt 21 is small, the rotating roller rotates around the rotating shaft 11 driven by the belt 21, which can reduce the wear on the edge of the belt 21.

[0040] When the belt 21 deviates from the original route, the rotating roller receives the lateral thrust from the belt 21, which drives the entire telescopic assembly to rotate a certain angle, and the alarm limit switch 13 is triggered by the fixed plate 3 located below; after the alarm limit switch 13 is triggered, if the deviation of the belt 21 continues to increase, the entire telescopic assembly can no longer rotate, and the rotating roller is continuously subjected to force, which compresses the compression spring 18 and drives the connecting rod 4 to move toward the switch box 20, until the stop cap 7 at the end of the connecting rod 4 triggered the stop limit switch 14 in the switch box 20, so that the belt 21 stops moving. It is easy to understand that it is a relatively mature technology to access the belt conveyor PLC system through the switch trigger signal, send an alarm signal and stop the belt conveyor from running, which will not be repeated in this solution.

[0041] After the belt 21 stops moving, the staff can respond in time and carry out relevant maintenance and repair work. After the belt 21 is restored to the original running route, the telescopic assembly rotates a certain angle under the action of gravity and returns to the initial tilted state. At this time, under the elastic force of the compression spring 18, the connecting rod 4 and the rotating rod roller are pushed back to the original position, and the stop cap 7 and the end of the fixing plate 3 away from the compression spring 18 are against each other, which can ensure that the connecting rod 4 does not fall out of the avoidance hole 6 and prevent the telescopic assembly from falling apart.

[0042] The belt edge anti-gnaw device of the utility model can perform early warning and stop operations in time by installing a telescopic component on the support frame 1 in cooperation with an alarm limit switch 13 and a stop limit switch 14 on the switch mounting plate 12, which is beneficial to avoiding the expansion of accident risks, effectively reducing the rate of accidents caused by gnawing and tearing of the belt 21, reducing the loss of manpower and material resources, and improving the working efficiency. It is very practical and has good market application prospects.

[0043] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of illustration and illustration. These descriptions are not intended to limit the utility model to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the utility model and various different options and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. A belt edge anti-biting device, characterized in that: include: Two support frames are symmetrically arranged; the support frame is in the shape of the letter "n" and has a horizontal bottom plate at the bottom; The telescopic assembly is provided with two upper and lower parts, including a fixing plate, a connecting rod, a limiting seat and an elastic member; the fixing plate is provided with an avoidance hole 1; one end of the connecting rod is connected and fixed to the limiting seat, and the other end passes through the avoiding hole 1 and is threadedly connected to a stop cap; the limiting seat is provided with an avoidance hole 2; the elastic member is sleeved on the connecting rod, and its two ends are respectively abutted on the fixing plate and the limiting seat; the upper and lower fixing plates are connected by a locking plate, and the two ends of the locking plate are respectively connected and fixed to the upper and lower fixing plates by bolts; the top of the fixing plate located at the top is hinged on the support frame; The sleeve is rotated, and the middle of the sleeve is penetrated by the shaft; the two end extension sections of the shaft respectively pass through the avoidance holes 2 opened on the upper and lower limit seats, and are fixed by bolts; A switch mounting plate, whose two ends are respectively fixed on the vertical rods on both sides of the support frame, is provided with an alarm limit switch and a stop limit switch; the alarm limit switch is triggered by the fixed plate located below, and the stop limit switch is triggered by the stop cap on the connecting rod located below.

2. The belt edge anti-biting device according to claim 1, characterized in that: The upper limit seat is provided with a protective plate near one end of the belt, and the protective plate is arranged in an arc surface toward one end of the belt.

3. The belt edge anti-biting device according to claim 1, characterized in that: The elastic will include pad 1, pad 2 and a compression spring; pad 1 abuts against the fixed plate, and pad 2 abuts against the limit seat; the compression spring is sleeved on the connecting rod, and its two ends are respectively connected to pad 1 and pad 2.

4. The belt edge anti-biting device according to claim 3, characterized in that: The middle parts of the pad plate 1 and the pad plate 2 are both provided with avoidance holes 3 for the connecting rod to pass through.

5. The belt edge anti-biting device according to claim 1, characterized in that: The alarm limit switch is located on the side of the middle horizontal plate of the switch mounting plate facing the belt; a switch box is fixed on the switch mounting plate by bolts, and the stop limit switch is located inside the switch box.

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