Belt deviation detection device

Abstract

The present invention discloses a belt deviation detection device, comprising a detection unit and a conversion unit, wherein the detection unit is arranged in the housing of a belt conveyor to be detected, the detection unit comprises a first rotating shaft, a contact element and a connecting element, and the conversion unit is arranged outside the housing of the belt conveyor, the conversion unit comprises a second rotating shaft and a conversion element. The contact surface of the contact element abuts against the side surface of the belt of the belt conveyor, and driven by the belt, the contact element rotates and slides along the first rotating shaft. Since the contact surface is a conical surface, the contact surface can always contact the belt when the belt deviates, but the change in the contact position between the contact surface and the belt directly affects the rotation speed of the contact element. The contact element is connected to the connecting element, and the connecting element can drive the first rotating shaft to rotate, and then the first rotating shaft drives the second rotating shaft to rotate. The second rotating shaft is connected to the conversion element, and the conversion element converts the speed change information and transmits it to the control mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of belt conveyor equipment and peripheral supporting facilities thereof, in particular to a belt deviation detection device. Background Art

[0002] Belt conveyors have a wide range of applications, encompassing various areas such as automated production and material transfer. As a crucial component of conveyors, belts are prone to deviation during extended operation due to environmental, operating conditions, and component quality issues. Prolonged belt deviation can severely impact the service life of the belt and its idlers, posing a significant safety hazard to on-site production.

[0003] Since belt conveyors often work in harsh environments with severe dust pollution, humidity, toxic and corrosive media, some existing deviation detection devices only have individual functions such as detecting belt deviation fault alarms and detecting belt offset when working. The deviation devices are installed in the belt working space and require power supply. For some flammable, explosive, humid, and highly corrosive working environments, the lines are easily damaged after working for a period of time, which can easily cause safety hazards and reduce working stability. The belt deviation signal cannot be effectively detected in real time, which will directly affect equipment safety and the smooth progress of safe production.

[0004] Therefore, how to solve the problem in the prior art that the deviation detection device is affected by the working environment of the belt conveyor, the detection reliability is reduced, and thus the production safety of the belt conveyor is affected, has become an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of the present invention is to provide a belt deviation detection device to solve the problems existing in the above-mentioned prior art, improve the reliability of belt deviation detection, and enhance the working safety factor of the belt conveyor.

[0006] To achieve the above-mentioned object, the present invention provides the following solution: The present invention provides a belt deviation detection device, comprising:

[0007] The detection unit is arranged in a housing of the belt conveyor to be detected, and the detection unit includes a first rotating shaft, a contact element and a connecting element, the first rotating shaft is rotatably arranged in the housing of the belt conveyor; the contact element has a contact surface, and the contact surface is a conical surface, and the contact surface can contact the side surface of the belt of the belt conveyor to be detected, and the belt of the belt conveyor can drive the contact element to rotate, and the contact element is slidably arranged on the first rotating shaft, and the sliding direction of the contact element relative to the first rotating shaft is parallel to the side surface of the belt of the belt conveyor, an elastic member is arranged between the contact element and the first rotating shaft, and in an initial state, when the contact surface is against the belt of the belt conveyor, the elastic member is in a compressed state; the contact element is connected to the connecting element, and the connecting element can drive the first rotating shaft to rotate;

[0008] A conversion unit is arranged outside the shell of the belt conveyor, and the conversion unit includes a second rotating shaft and a conversion element. The first rotating shaft is transmission-connected to the second rotating shaft, and the second rotating shaft is connected to the conversion element. The conversion element can be connected to the control mechanism.

[0009] Preferably, the detection unit also includes a guide connecting piece, which is connected to the first rotating shaft. The connecting element includes a guide rod, one end of the guide rod is connected to the contact element, and the other end of the guide rod is slidably connected to the guide connecting piece. The axis of the guide rod is parallel to the axis of the contact element, and the sliding direction of the guide rod is parallel to the sliding direction of the contact element. The elastic member is arranged between the contact element and the guide connecting piece.

[0010] Preferably, there are two guide rods, and the guide rods are symmetrically arranged with the axis of the first rotating shaft as the symmetry axis.

[0011] Preferably, the connecting element further comprises a locking nut, and one end of the guide rod passing through the guide connecting piece is provided with a screw segment, and the locking nut is threadedly connected to the screw segment.

[0012] Preferably, the elastic member is a spring, and the elastic member is sleeved on the outside of the first rotating shaft.

[0013] Preferably, the first rotating shaft is connected to the second rotating shaft through a coupling.

[0014] Preferably, the coupling is a magnetic coupling.

[0015] Preferably, the conversion element is an encoder.

[0016] Preferably, the first rotating shaft and the second rotating shaft are both connected with a positioning assembly;

[0017] The positioning assembly includes a positioning support, a copper sleeve and a locking ring. The positioning support can be connected to the housing of the belt conveyor. The first rotating shaft and the second rotating shaft can be rotatably connected to the positioning support. The copper sleeve is arranged between the first rotating shaft, the second rotating shaft and the positioning support. The locking ring can fix the relative positions of the first rotating shaft, the second rotating shaft and the positioning support.

[0018] Preferably, the first rotating shaft is connected to two groups of the positioning components, and the contact element is located between the two groups of the positioning components; the second rotating shaft passes through the positioning components and is connected to the conversion element.

[0019] Compared with the prior art, the present invention has achieved the following technical effects:

[0020] The belt deviation detection device of the present invention has a contact surface of a contact element that abuts against the side surface of the belt of the belt conveyor, and the contact element rotates under the drive of the belt. In the case that the belt deviates, the contact element slides along the first rotating shaft, and since the contact surface is a conical surface, when the belt deviates, the contact surface either maintains contact with the belt under the action of the elastic member recovering the deformation, or the belt continues to compress the elastic member and maintains contact with the contact surface. Although the contact surface can always be in contact with the belt, the change in the contact position between the contact surface and the belt directly affects the rotation speed of the contact element. The contact element is connected to the connecting element, and the connecting element can drive the first rotating shaft to rotate, and then the first rotating shaft drives the second rotating shaft to rotate. The second rotating shaft is connected to the conversion element, and the conversion element can be connected to the control mechanism. The conversion element converts the speed change information and transmits it to the control mechanism, so that the operator can obtain the belt deviation information in time. The belt offset detection device of the present invention has a detection unit arranged inside the housing of the belt conveyor, and a conversion unit arranged outside the housing of the belt conveyor. The detection unit responsible for physical detection of the offset is located inside the belt conveyor, and the conversion unit responsible for transmitting the offset information is located outside the belt conveyor. This effectively avoids the problem of reduced reliability of electrical components in the detection device due to the working environment of the belt conveyor, improves the accuracy of the detection results, extends the service life of the device, and is beneficial to improving the working safety factor of the belt conveyor. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic diagram of the main structure of the belt deviation detection device of the present invention;

[0023] Figure 2 It is a side structural schematic diagram of the belt deviation detection device of the present invention;

[0024] Figure 3 This is a schematic top view of the structure of the belt deviation detection device of the present invention.

[0025] Among them, 100 is the detection unit and 200 is the conversion unit;

[0026] 1 is the first rotating shaft, 2 is the contact element, 3 is the contact surface, 4 is the elastic member, 5 is the connecting element, 6 is the second rotating shaft, 7 is the guide connecting piece, 8 is the guide rod, 9 is the screw segment, 10 is the locking nut, 11 is the coupling, 12 is the conversion element, 13 is the positioning assembly, 14 is the positioning support, 15 is the copper sleeve, and 16 is the locking ring. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] The purpose of the present invention is to provide a belt deviation detection device to solve the problems existing in the above-mentioned prior art, improve the reliability of belt deviation detection, and enhance the working safety factor of the belt conveyor.

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] The present invention provides a belt deviation detection device, comprising a detection unit 100 and a conversion unit 200, wherein the detection unit 100 is arranged in the housing of the belt conveyor to be detected, and the detection unit 100 comprises a first rotating shaft 1, a contact element 2 and a connecting element 5, the first rotating shaft 1 being rotatably arranged in the housing of the belt conveyor; the contact element 2 having a contact surface 3, the contact surface 3 being a conical surface, the contact surface 3 being able to contact the side surface of the belt of the belt conveyor to be detected, and the belt of the belt conveyor being able to drive the contact element 2 to rotate, the contact element 2 being slidably arranged on the first rotating shaft 1, and the contact element 2 being relatively fixed to the first rotating shaft 1. The sliding direction of the first rotating shaft 1 is parallel to the side of the belt of the belt conveyor, and an elastic member 4 is arranged between the contact element 2 and the first rotating shaft 1. In the initial state, when the contact surface 3 is in contact with the belt of the belt conveyor, the elastic member 4 is in a compressed state; the contact element 2 is connected to the connecting element 5, and the connecting element 5 can drive the first rotating shaft 1 to rotate; the conversion unit 200 is arranged outside the shell of the belt conveyor, and the conversion unit 200 includes a second rotating shaft 6 and a conversion element 12. The first rotating shaft 1 is transmission-connected to the second rotating shaft 6, and the second rotating shaft 6 is connected to the conversion element 12. The conversion element 12 can be connected to the control mechanism.

[0031] In the belt deviation detection device of the present invention, the contact surface 3 of the contact element 2 is in contact with the side surface of the belt of the belt conveyor, and the contact element 2 rotates under the drive of the belt. In the case of belt deviation, the contact element 2 slides along the first rotating shaft 1, and since the contact surface 3 is a conical surface, when the belt deviates, the contact surface 3 may maintain contact with the belt under the action of the elastic member 4 recovering the deformation, or the belt continues to compress the elastic member 4 and maintain contact with the contact surface 3. Although the contact surface 3 can always be in contact with the belt, the change in the contact position between the contact surface 3 and the belt directly affects the rotation speed of the contact element 2. The contact element 2 is connected to the connecting element 5, and the connecting element 5 can drive the first rotating shaft 1 to rotate, and then the first rotating shaft 1 drives the second rotating shaft 6 to rotate. The second rotating shaft 6 is connected to the conversion element 12, and the conversion element 12 can be connected to the control mechanism. The conversion element 12 converts the speed change information and transmits it to the control mechanism, so that the operator can obtain the belt deviation information in time. In the belt deflection detection device of the present invention, the detection unit 100 is disposed inside the housing of the belt conveyor, and the conversion unit 200 is disposed outside the housing of the belt conveyor. The detection unit 100, which is responsible for physical detection of the deflection, is located inside the belt conveyor, while the conversion unit 200, which is responsible for transmitting deflection information, is located outside the belt conveyor. This effectively avoids the problem of reduced reliability of electrical components in the detection device due to the working environment of the belt conveyor, improves the accuracy of the detection results, extends the service life of the device, and is conducive to improving the operating safety factor of the belt conveyor. It should be explained here that the "side" of the belt of the belt conveyor specifically refers to the side of the belt in the thickness direction perpendicular to the belt conveying surface. At the same time, in the initial state, the elastic member 4 is in a "semi-compressed" state, and the compression amount can be half the length of the guide rod 8, which has not reached the maximum compression amount. This allows the elastic member 4 to push the contact element 2 to slide under the force of restoring the deformation. At the same time, the elastic member 4 can continue to be compressed, so that no matter which direction the belt deflects, the contact element 2 can maintain contact with the belt. In addition, the control mechanism can receive the signal of the conversion element 12 and determine whether the belt deviation is within the normal range and whether an alarm needs to be issued. Since setting up the controller and the control mechanism are common means for technical personnel in this field, they will not be repeated here.

[0032] Specifically, the detection unit 100 also includes a guide connecting piece 7, which is connected to the first rotating shaft 1. The connecting element 5 includes a guide rod 8, one end of which is connected to the contact element 2, and the other end of which is slidably connected to the guide connecting piece 7. The axis of the guide rod 8 is parallel to the axis of the contact element 2, and the sliding direction of the guide rod 8 is parallel to the sliding direction of the contact element 2. The elastic member 4 is arranged between the contact element 2 and the guide connecting piece 7. In this specific embodiment, the contact element 2 is an inverted funnel-shaped structure, one end of the elastic member 4 extends into the interior of the contact element 2, and the other end is against the guide connecting piece 7. The belt of the belt conveyor drives the contact element 2 to rotate, and the contact element 2 uses the guide rod 8 and the guide connecting piece 7 to achieve smooth transmission of torque. The contact element 2 drives the first rotating shaft 1 to rotate under the premise that it can slide relative to the first rotating shaft 1. The guide rod 8 can slide relative to the guide connecting piece 7 to avoid affecting the sliding of the contact element 2. In other specific embodiments of the present invention, other torque transmission structures may be selected according to actual working conditions, such as a structure similar to a sliding key connection between the connecting element 5 and the first rotating shaft 1, to improve the flexibility and adaptability of the device.

[0033] In this specific embodiment, there are two guide rods 8, symmetrically arranged about the axis of the first rotating shaft 1. This improves the uniformity of force applied to the contact element 2 and the guide connecting piece 7, thereby enhancing the structural strength of the device. It should also be noted that the contact element 2 is coaxially arranged with the first rotating shaft 1 to facilitate the collection of detection information. In actual applications, the position and connection relationship of the contact element 2 and the first rotating shaft 1 can also be adjusted according to specific working conditions.

[0034] More specifically, the guide connecting piece 7 has a guide hole, and the diameter of the guide hole of the guide connecting piece 7 is larger than the diameter of the guide rod 8, so that the guide rod 8 can slide back and forth in the guide hole of the guide connecting piece 7, thereby guiding the reciprocating motion of the contact element 2. The guide rod 8 passes through one end of the guide connecting piece 7 and is provided with a screw segment 9. The connecting element 5 also includes a locking nut 10, which is threadedly connected to the screw segment 9. After the guide rod 8 passes through the guide hole, it is connected to the locking nut 10. The outer diameter of the locking nut 10 is larger than the diameter of the guide hole of the guide connecting piece 7. The locking nut 10 can prevent the guide rod 8 from slipping out of the guide hole of the guide connecting piece 7, thereby improving the reliability of the guide rod 8 and facilitating the disassembly and maintenance of the device.

[0035] In this specific embodiment, the elastic member 4 is a spring, and the elastic member 4 is sleeved on the outside of the first rotating shaft 1, with a simple structure and easy installation.

[0036] Furthermore, the first rotating shaft 1 is connected to the second rotating shaft 6 via a coupling 11 , so that the first rotating shaft 1 can drive the second rotating shaft 6 to rotate, thereby ensuring smooth transmission of torque.

[0037] In practical applications, the coupling 11 can be a magnetic coupling, which is used to connect the first rotating shaft 1 and the second rotating shaft 6 to prevent the coupling 11 from damaging the housing of the belt conveyor and leakage of the conveyed material, while effectively protecting the working safety of the detection unit 200. It should be explained that the thickness and material of the housing of the belt conveyor must meet the working conditions of the magnetic coupling to avoid affecting the operation of the magnetic coupling. In other specific embodiments of the present invention, the coupling 11 can pass through the housing of the belt conveyor to connect to the second rotating shaft 6, but it should be noted that a sealing element is provided between the coupling 11 and the housing of the belt conveyor.

[0038] Among them, the conversion element 12 is an encoder, which is connected to the second rotating shaft 6. The second rotating shaft 6 can drive the encoder to rotate. At the same time, the encoder converts the angular displacement into an electrical signal and transmits the electrical signal to the control mechanism. The control mechanism controls the correction execution device through logical operations to drive the belt driven shaft adjustment screw through the pressure sensor to automatically adjust the position of the belt driven shaft with an adjustment amount of ≥1mm each time to achieve the purpose of automatic belt correction. Since the belt correction execution device is a common means used by technical personnel in this field, it will not be repeated here.

[0039] To facilitate installation and positioning, the first rotating shaft 1 and the second rotating shaft 6 are each connected to a positioning assembly 13; specifically, the positioning assembly 13 includes a positioning support 14, a copper sleeve 15, and a locking ring 16. The positioning support 14 can be connected to the housing of the belt conveyor. The first rotating shaft 1 and the second rotating shaft 6 are both rotatably connected to the positioning support 14. Copper sleeves 15 are provided between the first rotating shaft 1 and the second rotating shaft 6 and the positioning support 14. The locking ring 16 can fix the relative positions of the first rotating shaft 1 and the second rotating shaft 6 and the positioning support 14. The first rotating shaft 1 and the second rotating shaft 6 are respectively fixed by the positioning support 14, and copper sleeves 15 are provided between the positioning support 14 and the first rotating shaft 1 and the second rotating shaft 6. This enhances the movement reliability of the device, and the locking ring 16 is used to fix the relative positions of the various components, thereby improving the stability of the device.

[0040] Among them, the first rotating shaft 1 is connected to two groups of positioning components 13, the contact element 2 is located between the two groups of positioning components 13, the first rotating shaft 1 passes through the upper group of positioning components 13 and is connected to the coupling 11, and the second rotating shaft 6 passes through the positioning component 13 and is connected to the conversion element 12.

[0041] The belt deviation detection device of the present invention has a contact surface 3 of the contact element 2 which is a conical surface. In the initial state, the belt of the belt conveyor contacts the middle part of the contact surface 3 along the axial direction of the contact element 2, and the belt drives the contact element 2 to rotate. When the belt deviates in the horizontal direction, the position of the belt and the contact surface 3 changes. Under the action of the elastic member 4, the belt is always in contact with the contact element 2 and drives the contact element 2 to rotate. The contact element 2 drives the first rotating shaft 1 to rotate by using the guide rod 8 and the guide connecting piece 7. After the contact position of the belt and the contact element 2 changes along the axial direction, the rotation speed of the contact element 2 changes, and the rotation speed of the first rotating shaft 1 changes accordingly. The first rotating shaft 1 drives the second rotating shaft 6 to rotate by using the magnetic coupling. The second rotating shaft 6 is connected to the encoder, and then transmits the belt deviation information to the external control mechanism. The control mechanism adjusts the belt position by using the correction execution device to achieve the purpose of belt correction.

[0042] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A belt deviation detection device, characterized in that: include: The detection unit is arranged in a housing of the belt conveyor to be detected, and the detection unit includes a first rotating shaft, a contact element and a connecting element, the first rotating shaft is rotatably arranged in the housing of the belt conveyor; the contact element has a contact surface, and the contact surface is a conical surface, and the contact surface can contact the side surface of the belt of the belt conveyor to be detected, and the belt of the belt conveyor can drive the contact element to rotate, and the contact element is slidably arranged on the first rotating shaft, and the sliding direction of the contact element relative to the first rotating shaft is parallel to the side surface of the belt of the belt conveyor, an elastic member is arranged between the contact element and the first rotating shaft, and in an initial state, when the contact surface is against the belt of the belt conveyor, the elastic member is in a compressed state; the contact element is connected to the connecting element, and the connecting element can drive the first rotating shaft to rotate; A conversion unit is provided outside the housing of the belt conveyor, the conversion unit comprising a second rotating shaft and a conversion element, the first rotating shaft is drivingly connected to the second rotating shaft, the second rotating shaft is connected to the conversion element, and the conversion element can be connected to a control mechanism; the conversion element converts speed change information and transmits it to the control mechanism, so that an operator can obtain belt deviation information in a timely manner; The detection unit also includes a guide connecting piece, which is connected to the first rotating shaft. The connecting element includes a guide rod, one end of which is connected to the contact element, and the other end of the guide rod is slidably connected to the guide connecting piece. The axis of the guide rod is parallel to the axis of the contact element, and the sliding direction of the guide rod is parallel to the sliding direction of the contact element. The elastic member is arranged between the contact element and the guide connecting piece.

2. The belt deviation detection device according to claim 1, characterized in that: There are two guide rods, and the guide rods are symmetrically arranged with the axis of the first rotating shaft as the symmetry axis.

3. The belt deviation detection device according to claim 1, characterized in that: The connecting element further comprises a locking nut, one end of the guide rod passing through the guide connecting piece is provided with a screw segment, and the locking nut is threadedly connected to the screw segment.

4. The belt deviation detection device according to claim 1, characterized in that: The elastic member is a spring, and the elastic member is sleeved on the outside of the first rotating shaft.

5. The belt deviation detection device according to claim 1, characterized in that: The first rotating shaft is connected to the second rotating shaft through a coupling.

6. The belt deviation detection device according to claim 5, characterized in that: The coupling is a magnetic coupling.

7. The belt deviation detection device according to claim 1, characterized in that: The conversion element is an encoder.

8. The belt deviation detection device according to any one of claims 1 to 7, characterized in that: The first rotating shaft and the second rotating shaft are both connected to a positioning assembly; The positioning assembly includes a positioning support, a copper sleeve and a locking ring. The positioning support can be connected to the housing of the belt conveyor. The first rotating shaft and the second rotating shaft can be rotatably connected to the positioning support. The copper sleeve is arranged between the first rotating shaft, the second rotating shaft and the positioning support. The locking ring can fix the relative positions of the first rotating shaft, the second rotating shaft and the positioning support.

9. The belt deviation detection device according to claim 8, characterized in that: The first rotating shaft is connected to two groups of the positioning components, and the contact element is located between the two groups of the positioning components; the second rotating shaft passes through the positioning components and is connected to the conversion element.

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