Slipping detection device

Abstract

The utility model provides a slip detection device, which belongs to the technical field of belt conveyors, and comprises a sensed part, a sensing part, a detection part and a control part, and is characterized in that the sensed part is arranged on the end face of a tensioning roller on a tensioning device of a belt conveyor; the bracket is arranged on the tensioning device; the detection part is arranged on the bracket; and the control center is connected with the detection part and a driving motor of a driving roller of the belt conveyor. When the tensioning roller rotates by one circle, the sensed part passes through the detection area of the detection part once, so that the rotating frequency of the tensioning roller is obtained, whether the rotating speeds of the tensioning roller are the same or not can be automatically recognized and judged by combining the control center with the rotating speed of the driving roller, and then whether a belt slips or not is judged. The device does not need frequent manual inspection, reduces the labor intensity of workers, is more reliable, can effectively detect the slippage at the first time, and facilitates the timely treatment of the workers.

Description

Technical Field

[0001] The utility model belongs to the technical field of belt conveyors, and in particular relates to a slip detection device. Background Art

[0002] The belt conveyor mainly includes a driving roller, a driven roller, a roller assembly, a belt and a driving motor. The two ends of the belt are wound around the driving roller and the driven roller. The roller assembly is arranged between the driving roller and the driven roller to support the belt and limit the belt in some scenarios to facilitate material transportation. The driving motor is connected to the driving roller. In order to ensure smooth transmission of the belt, it is necessary to ensure that the belt is tight. The driven roller is often set as a tensioning roller. The position of the tensioning roller is adjusted in advance to ensure that the belt is tight. During the conveying process, the tension of the belt will change due to the different forces acting on the belt by the material, which may lead to tension failure. If the belt fails to be tensioned, it will cause the speed of the tail and head to be mismatched, that is, the speed of the driving roller is higher than that of the driven roller, causing the belt to slip, affecting the transportation operation. It is often necessary to manually check whether the belt is slipping. Utility Model Content

[0003] The utility model aims to solve at least one of the above technical problems existing in the prior art. To this end, the utility model provides a slip detection device that can automatically detect the rotation speed of the driven roller to determine whether the belt is slipping without frequent manual inspection.

[0004] The skid detection device according to the embodiment of the utility model comprises:

[0005] The sensed part is arranged on the end surface of the tensioning roller on the tensioning device of the belt conveyor;

[0006] A bracket, arranged on the tensioning device, the bracket being provided with a mounting portion extending toward the end surface of the tensioning roller;

[0007] A detection part, which is arranged on the mounting part, and the axial distance between the detection part and the tension roller is equal to the axial distance between the sensed part and the tension roller, and is used to detect the rotation frequency of the sensed part;

[0008] The control center is connected to the detection part and the driving motor of the active roller of the belt conveyor, and is used to analyze and determine whether the rotation frequency of the sensed part detected by the detection part is the same as the rotation frequency of the active roller.

[0009] The slip detection device according to the embodiment of the utility model has at least the following beneficial effects: the slip detection device in the utility model, by setting a sensed part on the end face of the tensioning roller (i.e., the driven roller), and then setting a detection part corresponding to the sensed part, when the tensioning roller rotates one circle, the sensed part will pass through the detection area of ​​the detection part once, thereby obtaining the rotation frequency of the tensioning roller, and through the control center combined with the rotation speed of the active roller, it can automatically identify and determine whether the rotation speed of the tensioning roller is the same, and then determine whether the belt is slipping. There is no need for frequent manual inspections, which not only reduces the labor intensity of workers, but also is more reliable, and can effectively detect the slip at the first time, which is convenient for workers to deal with in time. It should be noted that, usually, the active roller and the driven roller are of the same size, so it is only necessary to determine whether the rotation frequency is the same to determine whether the belt is slipping. If there is a size difference, an appropriate speed ratio conversion can be performed based on the condition that the belt speed is unchanged.

[0010] According to some embodiments of the utility model, the tensioning device is provided with two adjustment seats, the tensioning roller is rotatably mounted between the two adjustment seats, and a mounting platform is defined on one side of the adjustment seat, and the bracket is arranged on the mounting platform.

[0011] According to some embodiments of the present invention, the bracket comprises:

[0012] A first bracket plate, arranged in close contact with the mounting platform, wherein one end of the first bracket plate close to the tensioning roller extends out of the adjustment seat;

[0013] A second bracket plate, vertically connected to the extended end of the first bracket plate, the second bracket plate being parallel to the end surface of the tensioning roller;

[0014] The detection portion is provided on the second bracket plate so as to be movable and adjustable along the axial direction of the tension roller.

[0015] According to some embodiments of the utility model, the second bracket plate is provided with a mounting hole, the detection part is inserted into the mounting hole, and adjustment nuts are provided at both ends of the mounting hole, which are used to be clamped and fixed on the second bracket plate by the two adjusting nuts, and the movement is adjusted by the adjusting nuts.

[0016] According to some embodiments of the present invention, the first bracket plate and the second bracket plate are an integral structure.

[0017] According to some embodiments of the utility model, the belt conveyor is provided with a support beam, the adjustment seat is slidably sleeved on the support beam, the mounting platform is located at the upper end of the adjustment seat, the adjustment seat is provided with a threaded through hole and a mounting screw installed in the threaded through hole on the mounting platform in a direction perpendicular to the support beam, the bracket is provided with a clearance hole for the mounting screw to pass through, and the mounting screw is sleeved with a gasket on the upper end of the bracket, and the lower end of the mounting screw abuts against the support beam.

[0018] According to some embodiments of the utility model, the support beam includes an upper wing plate, a web plate and a lower wing plate, the upper wing plate and the lower wing plate are vertically arranged at both ends of the web plate in the width direction, the adjustment seat includes a surrounding plate and a sliding seat, the surrounding plate covers the support beam, and the sliding seat is arranged on the inner side wall of the surrounding plate opposite to the upper wing plate.

[0019] According to some embodiments of the utility model, the tensioning device is provided with an adjustment structure at one end of the adjustment seat, which is used to control the movement of the adjustment seat on the support beam through the adjustment structure.

[0020] According to some embodiments of the present utility model, the sensed portion is welded to the end surface of the tensioning roller.

[0021] According to some embodiments of the utility model, an adjusting screw hole is provided at one end of the sensed portion close to the detecting portion, and a sensed bolt is installed in the adjusting screw hole.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0024] Figure 1 A schematic diagram of the positions of the sensed part, the bracket and the detection part in the utility model;

[0025] Figure 2 A structural schematic diagram of the tensioning device in the utility model;

[0026] Figure 3 It is a structural schematic diagram of the adjustment seat in the utility model. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 present invention.

[0029] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] The belt conveyor mainly includes a driving roller, a driven roller, a roller assembly, a belt and a driving motor. The two ends of the belt are wound around the driving roller and the driven roller. The roller assembly is arranged between the driving roller and the driven roller to support the belt and limit the belt in some scenarios to facilitate material transportation. The driving motor is connected to the driving roller. In order to ensure smooth transmission of the belt, it is necessary to ensure that the belt is tight. The driven roller is often set as a tensioning roller. The position of the tensioning roller is adjusted in advance to ensure that the belt is tight. During the conveying process, the tension of the belt will change due to the different forces acting on the belt by the material, which may lead to tension failure. If the belt fails to be tensioned, it will cause the speed of the tail and head to be mismatched, that is, the speed of the driving roller is higher than that of the driven roller, causing the belt to slip, affecting the transportation operation. It is often necessary to manually check whether the belt is slipping.

[0032] To this end, the utility model provides a slip detection device, which can automatically detect the rotation speed of the driven roller, thereby determining whether the belt is slipping, without the need for frequent manual inspections.

[0033] Reference Figures 1 to 3As shown, a slip detection device of an embodiment of the utility model comprises a sensed part 200, a bracket 202, a detection part 201 and a control center, wherein the sensed part 200 is arranged on the end surface of the tensioning roller 100 on the tensioning device of the belt conveyor, and rotates with the tensioning roller 100 when the tensioning roller 100 rotates. The bracket 202 is arranged on the tensioning device, and the bracket 202 is provided with a mounting part extending toward the end surface of the tensioning roller 100. The detection part 201 is arranged on the mounting part, and the axial distance from the detection part 201 to the tensioning roller 100 is equal to the axial distance from the sensed part 200 to the tensioning roller 100, and is used to detect the rotation frequency of the sensed part 200. It is understandable that, due to the axial distance between the detection part 201 and the tension roller 100 and the distribution center distance of the sensed part 200 on the tension roller 100, the rotation path of the sensed part 200 overlaps with the detection area of ​​the detection part 201. When the sensed part 200 rotates with the tension roller 100, it enters the detection area of ​​the detection part 201 once every rotation. The control center connects the detection part 201 and the driving motor of the active roller of the belt conveyor to analyze and determine whether the rotation frequency of the sensed part 200 detected by the detection part 201 is the same as the rotation frequency of the active roller.

[0034] The slip detection device in the present invention is provided with a sensed portion 200 on the end surface of the tensioning roller 100 (i.e., the driven roller), and then a detection portion 201 is provided corresponding to the sensed portion 200. When the tensioning roller 100 rotates one circle, the sensed portion 200 will pass through the detection area of ​​the detection portion 201 once, thereby obtaining the rotation frequency of the tensioning roller 100. By combining the rotation speed of the active roller with the control center, it can be automatically identified and determined whether the rotation speed of the tensioning roller 100 is the same, and then it can be determined whether the belt is slipping. There is no need for frequent manual inspections, which not only reduces the labor intensity of the workers, but is also more reliable. It can effectively detect the slip at the first time it occurs, which is convenient for the workers to deal with it in time. It should be noted that, usually, the active roller and the driven roller are of the same size, so it is only necessary to determine whether the rotation frequency is the same to determine whether the belt is slipping. If there is a size difference, an appropriate speed ratio conversion can be performed based on the condition that the belt speed is unchanged.

[0035] In some embodiments of the utility model, the tensioning device is provided with two adjustment seats 300, the tensioning roller 100 is rotatably mounted between the two adjustment seats 300, and a mounting platform 204 is defined on one side of the adjustment seat 300, and the bracket 202 is arranged on the mounting platform 204. Since the tensioning device needs to be moved and adjusted according to the tensioning condition of the belt, if the detection part 201 is arranged on the frame of the belt conveyor, it will affect the detection. In this embodiment, by arranging the mounting platform 204 on the adjustment seat 300 of the tensioning device to install the bracket 202, it can be ensured that the detection part 201 and the sensed part 200 are always aligned during the tensioning adjustment process.

[0036] In some embodiments of the utility model, the bracket 202 includes a first bracket plate 2022 and a second bracket plate 2021, the first bracket plate 2022 is arranged on the mounting platform 204, and the end of the first bracket plate 2022 close to the tensioning roller 100 extends out of the adjustment seat 300. The second bracket plate 2021 is vertically connected to the extended end of the first bracket plate 2022, and the second bracket plate 2021 is parallel to the end surface of the tensioning roller 100. The detection unit 201 is arranged on the second bracket plate 2021 so as to be movable and adjustable along the axial direction of the tensioning roller 100. With the structural arrangement of this embodiment, the arrangement of the first bracket plate 2022 and the second bracket plate 2021 can be stably installed on the adjustment seat 300, and the detection unit 201 can be conveniently installed. In addition, the detection unit 201 can be arranged close to the tensioning roller 100 by using the first bracket plate 2022 and the second bracket plate 2021 to ensure the detection accuracy.

[0037] In some embodiments of the utility model, the second bracket plate 2021 is provided with a mounting hole, the detection unit 201 is inserted into the mounting hole, and adjustment nuts are provided at both ends of the mounting hole, which are used to be clamped and fixed on the second bracket plate 2021 by two adjustment nuts, and adjusted and moved by the adjustment nuts. With the structural setting of this embodiment, the distance from the detection unit 201 to the sensed unit 200 can be changed by adjusting the nuts, so as to facilitate the adjustment of the detection range and accuracy. The detection unit 201 can adopt a proximity switch sensor, or other structures that can realize the detection of the sensed unit 200.

[0038] In some embodiments of the present invention, the first bracket plate 2022 and the second bracket plate 2021 are an integral structure, such as a structure formed by integral bending, so as to optimize the production component.

[0039] In some embodiments of the utility model, the belt conveyor is provided with a support beam 400, the adjustment seat 300 is slidably sleeved on the support beam 400, the mounting platform 204 is located at the upper end of the adjustment seat 300, the adjustment seat 300 is provided with a threaded through hole and a mounting screw 203 installed in the threaded through hole on the mounting platform 204 in a direction perpendicular to the support beam 400, the bracket 202 is provided with a clearance hole for the mounting screw 203 to pass through, and the mounting screw 203 is sleeved with a gasket on the upper end of the bracket 202, and the lower end of the mounting screw 203 abuts the support beam 400. With the structural setting of this embodiment, the mounting screw 203 is used to lock the bracket 202, so that the bracket 202 can be detachably installed, which is convenient for inspection and maintenance. Secondly, by adding or removing gaskets, while ensuring the locking of the bracket 202, the end of the mounting screw 203 abuts the support beam 400, so that when the adjustment seat 300 is acted upon by the belt, the mounting screw 203 is used to improve the stability of the bracket 202.

[0040] In some embodiments of the utility model, the support beam 400 includes an upper wing plate, a web plate and a lower wing plate, the upper wing plate and the lower wing plate are vertically arranged at both ends of the web plate in the width direction, the adjustment seat 300 includes a panel and a slide 303, the panel covers the support beam 400, and the slide 303 is arranged on the inner side wall of the panel opposite to the upper wing plate. The panel includes a first enclosed plate 301 made by bending and a second enclosed plate 302 connected to the first enclosed plate 301, wherein the first enclosed plate 301 includes a first plate surface, a second plate surface, a third plate surface, a fourth plate surface and a fifth plate surface which are vertically connected in sequence, wherein the first plate surface, the second plate surface and the fourth plate surface and the fifth plate surface are symmetrical about the center line of the third plate surface. The second enclosed plate 302 is connected to the first plate surface and the fifth plate surface by bolts, thereby surrounding the support beam 400. Due to the setting of the slide seat 303, the support of the tensioning roller 100 and the strength of the adjustment seat 300 can be ensured, so the enclosure is made of a steel plate with a thickness of 3mm-5mm to reduce the thickness and weight.

[0041] In some embodiments of the present invention, the tensioning device is provided with an adjustment structure at one end of the adjustment seat 300, which is used to control the adjustment seat 300 to move on the support beam 400 through the adjustment structure. Specifically, the adjustment structure includes a screw rod that is rotated between the upper wing plate and the lower wing plate and a support spring that is arranged at one end of the adjustment seat 300. The screw rod passes through the adjustment seat 300 and is threadedly connected to the adjustment seat 300, so as to control the movement of the adjustment seat 300 by rotation. The support spring is supported at one end of the adjustment seat 300 close to the active roller of the belt conveyor to ensure force is applied to avoid displacement under the tension of the belt and destroying the tension state of the belt.

[0042] In some embodiments of the present invention, the sensed portion 200 is welded to the end surface of the tensioning roller 100 .

[0043] In some embodiments of the utility model, an adjustment screw hole is provided at one end of the sensed part 200 close to the detection part 201, and a sensed bolt is installed in the adjustment screw hole. In this embodiment, by providing an adjustment screw hole on the sensed part 200, the distance from the head of the sensed bolt to the detection part 201 can be adjusted by rotating the sensed bolt to adjust the detection accuracy. And further adjustment can be made by adding a washer to the sensed bolt.

[0044] In summary, the slippage detection device in the present invention can automatically detect and determine whether the belt is slipping, so that the staff can be informed of the slippage and deal with it in the first place.

[0045] The present invention is described in detail above in conjunction with the embodiments, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A skid detection device, characterized in that: include: The sensed part is arranged on the end surface of the tensioning roller on the tensioning device of the belt conveyor; A bracket, arranged on the tensioning device, the bracket being provided with a mounting portion extending toward the end surface of the tensioning roller; A detection part, which is arranged on the mounting part, and the axial distance between the detection part and the tension roller is equal to the axial distance between the sensed part and the tension roller, and is used to detect the rotation frequency of the sensed part; The control center is connected to the detection part and the driving motor of the active roller of the belt conveyor, and is used to analyze and determine whether the rotation frequency of the sensed part detected by the detection part is the same as the rotation frequency of the active roller.

2. The skid detection device according to claim 1, characterized in that: The tensioning device is provided with two adjustment seats, the tensioning roller is rotatably mounted between the two adjustment seats, and a mounting platform is defined on one side of the adjustment seat, and the bracket is arranged on the mounting platform.

3. The skid detection device according to claim 2, characterized in that: The support comprises: A first bracket plate, arranged in close contact with the mounting platform, wherein one end of the first bracket plate close to the tensioning roller extends out of the adjustment seat; A second bracket plate, vertically connected to the extended end of the first bracket plate, the second bracket plate being parallel to the end surface of the tensioning roller; The detection portion is provided on the second bracket plate so as to be movable and adjustable along the axial direction of the tension roller.

4. The skid detection device according to claim 3, characterized in that: The second bracket plate is provided with a mounting hole, the detection part is inserted into the mounting hole, and adjustment nuts are provided at both ends of the mounting hole for being clamped and fixed on the second bracket plate through the two adjustment nuts and adjusted and moved through the adjustment nuts.

5. The skid detection device according to claim 3, characterized in that: The first bracket plate and the second bracket plate are an integrated structure.

6. The skid detection device according to claim 2, characterized in that: The belt conveyor is provided with a support beam, the adjustment seat is slidably sleeved on the support beam, the mounting platform is located at the upper end of the adjustment seat, the adjustment seat is provided with a threaded through hole and a mounting screw installed in the threaded through hole on the mounting platform in a direction perpendicular to the support beam, the bracket is provided with a clearance hole for the mounting screw to pass through, and the mounting screw is sleeved with a gasket on the upper end of the bracket, and the lower end of the mounting screw abuts against the support beam.

7. The skid detection device according to claim 6, characterized in that: The support beam includes an upper wing plate, a web plate and a lower wing plate, wherein the upper wing plate and the lower wing plate are vertically arranged at both ends of the web plate in the width direction, and the adjustment seat includes a surrounding plate and a sliding seat, wherein the surrounding plate covers the support beam, and the sliding seat is arranged on the inner side wall of the surrounding plate opposite to the upper wing plate.

8. The skid detection device according to claim 7, characterized in that: The tensioning device is provided with an adjustment structure at one end of the adjustment seat, which is used to control the movement of the adjustment seat on the support beam through the adjustment structure.

9. The skid detection device according to claim 1, characterized in that: The induced portion is welded to the end surface of the tensioning roller.

10. The skid detection device according to claim 1, characterized in that: An adjusting screw hole is provided at one end of the sensed portion close to the detecting portion, and a sensed bolt is installed in the adjusting screw hole.

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