Deviation detection device

Abstract

The invention provides a deviation detection device. The deviation detection device is used for the belt type conveying equipment, the belt type conveying equipment comprises a conveying belt, and the deviation detection device comprises a mounting assembly, a contact assembly, a spring assembly, a first signal transmitting assembly and a first signal receiving assembly; the mounting assembly is used for mounting the deviation detection device on the belt type conveying equipment; the contact assembly comprises an extrusion end, a sensing end and a connecting rod between the extrusion end and the sensing end; the spring assembly is arranged corresponding to at least one part of the connecting rod; the first signal transmitting assembly and the first signal receiving assembly are oppositely arranged, and the first signal transmitting assembly and the first signal receiving assembly are arranged on the side, away from the extrusion end, in the deviation detection device.

Description

Technical Field

[0001] The present application relates to the field of belt conveyor equipment detection, and in particular to a deviation detection device. Background Art

[0002] At present, most deviation switches are of vertical roller structure. Vertical roller deviation switches use the lateral displacement of the belt conveyor to touch the vertical roller when it deviates, so that the vertical roller deflects. The switch is triggered by the deflection angle of the vertical roller to realize the alarm signal of belt deviation. The deviation switch is divided into two levels of action functions according to its deflection tilt angle. The first level action is used for alarm and the second level action is used for shutdown.

[0003] Due to the relatively complex working environment of the deviation switch, especially underground mining operations, high dust and humid environment, the long-term deflection activity of the vertical roller deviation switch is easily affected by the environment, resulting in false operation and refusal to operate faults; at the same time, the vertical roller deviation switch is triggered by the activity of the external extension structure. If the belt conveyor vibrates too much, it is very easy to cause the deviation switch to malfunction; if the belt conveyor is piled with materials, it may also touch the vertical roller, causing the vertical roller to malfunction or fail to operate; secondly, the vertical roller component of the vertical roller deviation switch is relatively long, the structure is not compact, and the installation environment is also restricted. Summary of the invention

[0004] According to one aspect of the present application, a deviation detection device is provided for use in a belt conveyor device, the belt conveyor device comprising a conveyor belt, the deviation detection device comprising: a mounting assembly, a contact assembly, a spring assembly, a first signal transmitting assembly and a first signal receiving assembly; the mounting assembly is used to mount the deviation detection device on the belt conveyor device; the contact assembly comprises an extrusion end, a sensing end, and a connecting rod between the extrusion end and the sensing end, wherein, when the deviation detection device is mounted on the belt conveyor device via the mounting assembly, the extrusion end faces the conveyor belt, the sensing end faces away from the conveyor belt, and when the conveyor belt squeezes the extrusion end, the extrusion end can drive the sensing end to move in a direction away from the conveyor belt via the connecting rod; the spring assembly and the connecting rod At least a part of the connecting rod is arranged accordingly, and when the extrusion end drives the sensing end to move away from the conveyor belt through the connecting rod, the spring assembly can provide the extrusion end with a force in the direction of the conveyor belt; the first signal emitting assembly and the first signal receiving assembly are arranged opposite to each other, and the first signal emitting assembly and the first signal receiving assembly are arranged on a side away from the extrusion end in the deviation detection device, wherein, in an initial state, the first signal receiving assembly can receive a signal emitted by the first signal emitting assembly; in a first-level deviation state, the conveyor belt squeezes the extrusion end, and the extrusion end drives the sensing end to move away from the conveyor belt through the connecting rod, so that the first signal receiving assembly cannot receive the signal emitted by the first signal emitting assembly.

[0005] Furthermore, the deviation detection device also includes: a second signal transmitting component and a second signal receiving component, wherein the second signal transmitting component and the second signal receiving component are arranged opposite to each other, and the second signal transmitting component and the second signal receiving component are arranged on a side of the deviation detection device away from the extrusion end, and the distance between the second signal transmitting component and the extrusion end is greater than the distance between the first signal transmitting component and the extrusion end, wherein, in the secondary deviation state, the conveyor belt squeezes the extrusion end, and the extrusion end drives the sensing end to move away from the conveyor belt through the connecting rod, so that the first signal receiving component cannot receive the signal transmitted by the first signal transmitting component, and the second signal receiving component cannot receive the signal transmitted by the second signal transmitting component.

[0006] Furthermore, the deviation detection device also includes: a status indicator light, and the status indicator light can display different colors for the initial state, the first-level deviation state, and the second-level deviation state.

[0007] Furthermore, the deviation detection device further includes: a bushing, which is arranged outside at least a portion of the connecting rod.

[0008] Furthermore, the deviation detection device also includes: a circuit board assembly, and the circuit board assembly is used to supply power to the first signal transmitting assembly, the first signal receiving assembly, the second signal transmitting assembly, the second signal receiving assembly and the status indicator light.

[0009] Furthermore, the deviation detection device further includes: a limiter, which is arranged corresponding to the contact component and is used to limit the position of the contact component.

[0010] Furthermore, the deviation detection device further includes: a cover shell, and the cover shell is arranged outside at least a part of the deviation detection device.

[0011] Furthermore, the deviation detection device further includes: a sealing component, and the sealing component is arranged between the contact component and the mounting component.

[0012] Furthermore, the deviation detection device further includes: a cable, and the cable is used to connect the deviation detection device to an external power supply.

[0013] Furthermore, the deviation detection device also includes: a wire protection tube sleeve, the wire protection tube sleeve is arranged outside the cable, and the wire protection tube sleeve is connected to the cover shell.

[0014] The embodiments described in this application have the following beneficial effects:

[0015] The deviation detection device provided in the present application is used to detect the deviation level of the conveyor belt of the belt conveyor equipment. The deviation detection device includes: a mounting assembly, a contact assembly, a spring assembly, a first signal transmitting assembly and a first signal receiving assembly. When the conveyor belt does not deviate, the first signal receiving assembly can receive the signal transmitted by the first signal transmitting assembly. When the conveyor belt deviates, the conveyor belt squeezes the extrusion end of the contact assembly, and the extrusion end drives the sensing end to move away from the conveyor belt through the connecting rod, so that the first signal receiving assembly cannot receive the signal transmitted by the first signal transmitting assembly, thereby detecting the first deviation of the belt conveyor equipment.

[0016] Furthermore, the deviation detection device provided in the present application further detects the deviation state of the conveyor belt through a second signal transmitting component and a second signal receiving component. When the conveyor belt continues to deviate after the first-level deviation state, the extrusion end drives the sensing end to continue to move away from the conveyor belt through the connecting rod, so that the first signal receiving component cannot receive the signal transmitted by the first signal transmitting component, and the second signal receiving component cannot receive the signal transmitted by the second signal transmitting component, thereby detecting the secondary deviation of the belt conveyor equipment.

[0017] In addition, the contact component of the deviation detection device provided by the present application is small in size, compact in structure, has high detection accuracy, and is easy to install, thereby solving the problems of the existing technology such as the limited installation environment, long vertical roller components, and non-compact structure of the vertical roller deviation switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the embodiment of the present application, the following briefly introduces the drawings required for the description of the embodiment. The drawings described below are only exemplary embodiments of the present application.

[0019] Figure 1 A cross-sectional view of the internal structure of a deviation detection device according to an embodiment of the present application is shown;

[0020] Figure 2 A cross-sectional view of the internal structure of a deviation detection device according to another embodiment of the present application is shown;

[0021] Figure 3a A three-dimensional schematic diagram of a deviation detection device according to an embodiment of the present application is shown;

[0022] Figure 3b Another three-dimensional schematic diagram of a deviation detection device according to an embodiment of the present application is shown;

[0023] Figure 4 A schematic diagram of the assembly of a deviation detection device and a belt conveyor device according to an embodiment of the present application is shown;

[0024] Figure 5 Another schematic diagram of assembling a deviation detection device and a belt conveyor device according to an embodiment of the present application is shown.

[0025] In the accompanying drawings: 1-contact assembly, 2-spring assembly, 3-sleeve, 4-sealing assembly, 5-mounting assembly, 6-limiting member, 7-base, 8-circuit board assembly, 9-first signal transmitting assembly, 10-wire pipe clamp, 11-cable, 12-gasket, 13-transparent sleeve, 14-first signal receiving assembly, 15-status indicator light, 16-cover, 17-light guide, 18-second signal transmitting assembly, 19-second signal receiving assembly. DETAILED DESCRIPTION

[0026] The technical solutions in this application will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of this application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of this application. It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other without conflict.

[0027] Belt conveyor is a kind of conveying equipment widely used in industrial production, logistics and transportation. During the operation of belt conveyor, the deviation of conveyor belt not only affects the quality of conveyed materials, but also may cause frequent shutdown of belt conveyor if the conveyor belt deviates frequently, thus affecting the life of belt conveyor. Therefore, deviation switch plays a vital role in belt conveyor. Deviation switch is mainly used to detect and prevent conveyor belt from deviating during operation, so as to ensure the safety and stability of conveying process.

[0028] Reference Figure 1 as well as Figure 3a and Figure 3bThe present application provides a deviation detection device, which is used for a belt conveyor device, and the belt conveyor device includes a conveyor belt. The deviation detection device includes: an installation component 5, a contact component 1, a spring component 2, a first signal transmitting component 9 and a first signal receiving component 14; the installation component 5 is used to install the deviation detection device on the belt conveyor device; the contact component 1 includes an extrusion end 1A, a sensing end 1B, and a connecting rod 1C between the extrusion end 1A and the sensing end 1B, wherein, when the deviation detection device is installed on the belt conveyor device through the installation component 5, the extrusion end 1A faces the conveyor belt, the sensing end 1B faces away from the conveyor belt, and when the conveyor belt squeezes the extrusion end 1A, the extrusion end 1A can drive the sensing end 1B to move away from the conveyor belt through the connecting rod 1C; the spring component 2 and the connecting rod 1C At least a part of the connecting rod 1C is correspondingly arranged, and when the extrusion end 1A drives the sensing end 1B to move away from the conveyor belt through the connecting rod 1C, the spring assembly 2 can provide the extrusion end 1A with a force in the direction of the conveyor belt; the first signal emitting assembly 9 and the first signal receiving assembly 14 are arranged opposite to each other, and the first signal emitting assembly 9 and the first signal receiving assembly 14 are arranged on a side of the deviation detection device away from the extrusion end 1A, wherein, in an initial state, the first signal receiving assembly 14 can receive the signal emitted by the first signal emitting assembly 9; in a first-level deviation state, the conveyor belt squeezes the extrusion end 1A, and the extrusion end 1A drives the sensing end 1B to move away from the conveyor belt through the connecting rod 1C, so that the first signal receiving assembly 14 cannot receive the signal emitted by the first signal emitting assembly 9.

[0029] In this embodiment, the belt conveyor device includes a conveyor belt. The conveyor belt may be a belt, a rubber belt, a plastic belt, or a cloth belt, etc., and this application does not impose any specific restrictions on this, as long as the technical principle of this application can be realized. In this application, if there is no additional description, "belt" will be used as an example of a conveyor belt, "belt conveyor device" will be used as an example of a belt conveyor device, and "deviation switch" will be used as an example of a deviation detection device.

[0030] Refer to the following Figure 1 , Figure 4 and Figure 5 A deviation detection device according to an embodiment of the present application is described.

[0031] The installation component 5 is used to install the deviation detection device (i.e., deviation switch) on the belt conveyor. Because when the belt conveyor is running, the rotating shaft will drive the roller on the lower side of the belt to rotate. If the belt deviates, it will start to deviate from the roller. Therefore, the deviation switch can be installed on the side wall at a predetermined distance (such as the predetermined distance can be set to 1m or 3m) from the driving wheel or the driven wheel of the belt conveyor. During installation, the extrusion end 1A of the contact component 1 faces the belt, and the sensing end 1B of the contact component 1 faces away from the belt. The belt and the extrusion end 1A of the contact component 1 maintain a certain distance (for example, the distance can be set to 0.5mm-10mm). In the initial state, the first signal receiving component 14 can receive the signal emitted by the first signal emitting component 9. When the belt deviates, it will shift laterally and the belt will contact the extrusion end 1A. If the belt continues to shift laterally, the extrusion end 1A will be squeezed and drive the sensing end 1B to move away from the belt through the connecting rod 1C. The extrusion end 1A blocks the first signal transmitting component 9, so that the first signal receiving component 14 cannot receive the signal emitted by the first signal transmitting component 9. At this time, the belt is in a first-level deviation state.

[0032] In the initial state, the belt has not deviated; or the belt has deviated a small distance and has not yet touched the extrusion end 1A of the deviation switch; or the belt has deviated a small distance and although the belt has touched the extrusion end 1A of the deviation switch, the extrusion end 1A drives the sensing end 1B to move a small distance and the sensing end 1B has not yet blocked the transmission and reception of signals. The initial state, the first-level deviation state, etc. will be described below in conjunction with specific embodiments.

[0033] The mounting assembly 5 can be flat, L-shaped, U-shaped or cross-shaped, and can be installed on the belt conveyor equipment by means of screws, clips or expansion bolts. The present application does not impose any specific restrictions on the installation method of the mounting assembly 5, as long as the deviation switch and the belt conveyor equipment can be fixedly installed.

[0034] The mounting assembly 5 may also include a gasket 12. For example, by adding a gasket 12 (such as a rubber gasket) between the deviation switch and the belt conveyor, the vibration between the deviation switch and the belt conveyor can be reduced when the belt conveyor is running, thereby better protecting the deviation switch. It is understandable that the above description of the mounting assembly 5 and its composition, installation method, etc. is only exemplary, and those skilled in the art can select the mounting assembly 5 according to actual needs, as long as the technical principle of the present application can be realized.

[0035] In this embodiment, the contact component 1 includes an extrusion end 1A, a sensing end 1B, and a connecting rod 1C between the extrusion end and the sensing end. For example, the extrusion end 1A may be cylindrical, arc-shaped, square, triangular or needle-shaped. Regardless of the shape of the extrusion end 1A, as long as the belt is laterally displaced, the extrusion end can be squeezed and the sensing end can be driven to move away from the belt through the connecting rod. The connecting rod 1C is used to connect the extrusion end 1A and the sensing end 1B. The sensing end 1B is driven by the connecting rod 1C to move away from the belt, thereby blocking the first signal transmitting component 9, so that the first signal receiving component 14 cannot receive the signal transmitted by the first signal transmitting component 9.

[0036] Figure 1 The extrusion end 1A, the connecting rod 1C and the sensing end 1B shown in the figure are arranged substantially in a straight line, and the sensing end 1B and the extrusion end 1A are far away from each other. It can be understood that the above configuration of the contact assembly 1 and Figure 1 The examples are only exemplary, and those skilled in the art can select the contact component 1 according to actual needs, as long as the technical principle of the present application can be realized. For example, the sensing end and the connecting rod of the contact component can be arranged in a hook or barb shape, so that the sensing end and the extrusion end are close to each other, and accordingly, the first signal transmitting component and the first signal receiving component should also be adjusted accordingly.

[0037] In this embodiment, the deviation detection device further includes: a limiter 6, which is arranged corresponding to the contact component 1 and is used to limit the position of the contact component 1. For example, the limiter 6 can limit the movement position of the contact component 1 to prevent the contact component 1 from exceeding a predetermined travel range. At the same time, because the deviation switch is generally made of resin, if the limiter is not provided, the contact component 1 will move excessively and damage certain components inside the deviation switch. Therefore, the limiter 6 is provided corresponding to the contact component 1.

[0038] In this embodiment, the deviation detection device further includes: a sleeve 3, which is arranged outside at least a part of the connecting rod. For example, the sleeve 3 is arranged on at least a part of the outside of the connecting rod 1C of the contact component 1, so that when the contact component 1 is displaced (such as the contact component 1 is displaced away from the belt when the belt is deviated or the contact component 1 is reset after the belt returns to normal), the friction between the contact component 1 and other components inside the deviation switch can be reduced, thereby reducing the probability of damage to the contact component 1.

[0039] In this embodiment, the spring assembly 2 is arranged corresponding to at least a part of the connecting rod 1C, and when the extrusion end 1A drives the sensing end 1B to move in a direction away from the conveyor belt through the connecting rod 1C, the spring assembly 2 can provide the extrusion end 1A with a force in the direction of the conveyor belt. The spring assembly 2 is used to reset the contact assembly 1. For example, when the extrusion end 1A of the contact assembly 1 is squeezed by the belt, the extrusion end 1A moves in a direction away from the belt. At this time, the spring assembly 2 is compressed, thereby generating a force in the direction of the belt. When the belt returns to normal, the extrusion end 1A of the contact assembly 1 is no longer subjected to the pressure of the belt. At this time, the compressed spring assembly 2 can reset the contact assembly 1 by elastic force. The above setting of the spring assembly 2 is only exemplary, and those skilled in the art can select the spring assembly 2 according to actual needs, as long as the technical principles of the present application can be realized.

[0040] In this embodiment, the first signal transmitting component 9 is arranged opposite to the first signal receiving component 14, and the first signal transmitting component 9 and the first signal receiving component 14 are arranged on a side of the deviation detection device away from the extrusion end. In this application, unless otherwise specified, an infrared transmitting tube is used as a signal transmitting component and an infrared receiving tube is used as a signal receiving component.

[0041] For example, the first infrared emitting tube and the first infrared receiving tube are arranged opposite to each other, and the first infrared emitting tube and the first infrared receiving tube are installed in the deviation switch through the base 7, and are far away from the extrusion end 1A of the contact component 1. When the belt does not deviate, the first infrared emitting tube is not blocked by the sensing end 1B of the contact component 1, and the first infrared receiving tube can receive the signal emitted by the first infrared emitting tube. When the first deviation occurs (that is, the belt deviates to a large extent, has touched the extrusion end 1A and then drives the sensing end 1B to move 1mm away from the belt), the first infrared emitting tube is blocked by the sensing end 1B of the contact component 1, and the first infrared receiving tube cannot receive the signal emitted by the first infrared emitting tube. At this time, the belt is in the first deviation state.

[0042] It is understandable that the first signal emitting component 9 can select an infrared emitting tube or a laser emitter, and the first signal receiving component 14 can select an infrared receiving tube or a laser receiver. If the first signal emitting component 9 selects an infrared emitting tube, the first signal receiving component 14 also selects an infrared receiving tube accordingly. If the first signal emitting component 9 selects a laser emitter, the first signal receiving component 14 also selects a laser receiver accordingly. The above type settings of the first signal emitting component 9 and the first signal receiving component 14 are only exemplary, and those skilled in the art can select the first signal emitting component 9 and the first signal receiving component 14 according to actual needs, as long as the technical principles of the present application can be implemented.

[0043] In this embodiment, the deviation detection device further includes: a status indicator light 15, and the status indicator light 15 can display different colors for the initial state and the first-level deviation state. For example, the status indicator light 15 can be set as a red and yellow LED light. When the deviation switch is in the initial state, the LED light displays green, and when it is in the first-level deviation state, the LED light displays yellow. The above setting of the status indicator light 15 is only exemplary, and those skilled in the art can select the status indicator light 15 according to actual needs, as long as the technical principle of the present application can be implemented.

[0044] In this embodiment, the deviation detection device further includes: a circuit board assembly 8, and the circuit board assembly 8 is used to supply power to the first signal transmitting assembly 9, the first signal receiving assembly 14, the second signal transmitting assembly 18, the second signal receiving assembly 19, and the status indicator light. For example, the circuit board assembly 8 is installed in the deviation switch through the base 7, and the circuit board assembly 8 supplies power to the first signal transmitting assembly 9, the first signal receiving assembly 14, the second signal transmitting assembly 18, the second signal receiving assembly 19, and the status indicator light 15. In addition, because the working environment of the deviation switch is dusty and humid, in order to protect the circuit board assembly 8 and to enable the staff to visually check the internal circuit of the circuit board assembly 8, the circuit board assembly 8 can be encapsulated and protected by a transparent sleeve 13.

[0045] In this embodiment, the deviation detection device further includes: a cover 16, which is disposed outside at least a portion of the deviation detection device. Because the extrusion end of the contact component 1 of the deviation switch needs to contact the belt, a portion of the extrusion end is exposed, and the other components of the deviation switch are disposed in the cover 16, which can better protect the deviation switch.

[0046] In this embodiment, the deviation detection device further includes: a sealing component 4, and the sealing component 4 is arranged between the contact component 1 and the mounting component 5. Because there is a gap between the contact component 1 and the mounting component 5, and the working environment of the deviation switch is dusty and humid, in order to prevent the interior of the deviation switch from dust and moisture, it can be sealed and protected by the sealing component 4. In order to further improve the sealing performance of the deviation switch and prevent the components from getting damp, epoxy resin can be potted in the deviation switch, because epoxy resin has good electrical insulation, chemical resistance and high temperature resistance, so that the deviation switch can be better protected. When potting, the epoxy resin can use low molecular liquid bisphenol A type epoxy resin, such as E-54, E-51, E-44, E-42. These epoxy resins have low viscosity and high epoxy value, and are suitable for potting.

[0047] In this embodiment, the deviation detection device further includes: a cable 11, and the cable 11 is used to connect the deviation detection device to an external power source. For example, one end of the cable 11 is connected to a connection terminal of a deviation switch through a terminal, and the other end of the cable 11 is connected to an external power source, thereby providing power to the deviation switch.

[0048] In this embodiment, the deviation detection device further includes: a wire protection tube sleeve 10, which is arranged outside the cable 11 and connected to the cover 16. For example, the wire protection tube sleeve 10 is arranged outside the cable 11, and the wire protection tube sleeve 10 is connected to the cover 16, so that the cable can be prevented from being damaged (such as scratches, wear and extrusion) during installation and use, thereby extending the service life of the cable.

[0049] Refer to the following Figure 2 , Figure 4 and Figure 5 A deviation detection device according to another embodiment of the present application is described. Figure 2 The deviation detection device shown is similar to the one in the above reference Figure 1 The main differences between the described deviation detection devices are: Figure 2The deviation detection device shown in the figure adds a second signal emitting component 18, a second signal receiving component 19 and a light guide 17. The second signal emitting component 18 is arranged opposite to the second signal receiving component 19, and the second signal emitting component 18 and the second signal receiving component 19 are arranged on the side of the deviation detection device away from the extrusion end 1A, and the distance between the second signal emitting component 18 and the extrusion end 1A is greater than the distance between the first signal emitting component 9 and the extrusion end 1A. In the secondary deviation state, the conveyor belt squeezes the extrusion end 1A, and the extrusion end 1A drives the sensing end 1B to move away from the conveyor belt through the connecting rod 1C, so that the first signal receiving component 14 cannot receive the signal emitted by the first signal emitting component 9, and the second signal receiving component 19 cannot receive the signal emitted by the second signal emitting component 18.

[0050] exist Figure 2 In the deviation switch shown, in order to further detect the deviation level of the belt, a secondary deviation state is set (i.e., if the belt deviates to a large extent, it has touched the extrusion end 1A and then drives the sensing section 1B to move 10mm away from the belt). Specifically, on the basis of the relative arrangement of the first infrared emitting tube and the first infrared receiving tube, a second infrared emitting tube and a second infrared receiving tube are arranged, and the second infrared emitting tube and the second infrared receiving tube are also arranged relative to each other, and the second infrared emitting tube and the second infrared receiving tube are arranged in the deviation switch, on one side away from the extrusion end of the contact component 1, and the distance between the second infrared emitting tube and the extrusion end is greater than the distance between the first infrared emitting tube and the extrusion end 1A (for example, the distance between the first infrared emitting tube and the extrusion end 1A can be set to 20mm, and the distance between the second infrared emitting tube and the extrusion end 1A can be set to 30mm), so that the secondary deviation of the belt can be detected.

[0051] In the secondary deviation state, that is, after the belt has primary deviation, the belt continues to deviate. At this time, the belt continues to squeeze the extrusion end 1A, and the extrusion end 1A drives the sensing end 1B to continue to move away from the belt through the connecting rod 1C, so that the first infrared receiving tube cannot receive the signal emitted by the first infrared emitting tube, and the second infrared receiving tube cannot receive the signal emitted by the second infrared emitting tube. At this time, the belt is in the secondary deviation state.

[0052] In this embodiment, the deviation detection device further includes: a status indicator light 15, and the status indicator light 15 can display different colors for the initial state, the first-level deviation state, and the second-level deviation state. For example, the status indicator light 15 can be set as an LED light of three colors: red, yellow, and green. In the initial state, the LED light displays green; in the first-level deviation state, the LED light displays yellow; in the second-level deviation state, the LED light displays red. The above setting of the status indicator light 15 is only exemplary, and those skilled in the art can select the status indicator light 15 according to actual needs, as long as the technical principle of the present application can be implemented.

[0053] In this embodiment, the light guide 17 of the deviation detection device is arranged opposite to the status indicator light 15, and is used to guide light to the status indicator light 15. The light guide 17 can transmit light from one light source to another position, so the light of different colors (red, yellow, green) emitted by the LED lamp can be transmitted to the surface of the cover 16 of the deviation switch through the light guide 17, so that the staff can quickly understand the operating status of the belt conveyor equipment.

[0054] Reference Figure 4 and Figure 5 , the assembly of the deviation detection device and the belt conveyor equipment and the operation process of the deviation detection device are explained.

[0055] Because when the belt conveyor is running, the shaft at the shaft bearing seat will drive the roller under the belt to rotate. If the belt deviates, it will start to deviate from the roller. Therefore, the deviation switch can be installed on the side wall of the belt conveyor 1m away from the driving wheel or the driven wheel. The extrusion end 1A of the contact component 1 of the deviation switch faces the belt, and the sensing end 1B of the contact component 1 is away from the belt. When the belt is not deviated (i.e., the initial state), the belt and the extrusion end 1A of the contact component 1 maintain a certain distance (for example, the distance can be set to 1mm). At this time, the first signal receiving component 14 can receive the signal emitted by the first signal emitting component 9, and the status indicator 15 displays green. When the belt deviates, it will deviate laterally, causing the belt to contact the extrusion end 1A. At this time, if the belt continues to deviate laterally, the extrusion end 1A will be squeezed and the sensing end will be driven by the connecting rod 1C to move away from the belt, so that the extrusion end 1A blocks the first signal emitting component 9, so that the first signal receiving component 14 cannot receive the signal emitted by the first signal emitting component 9. At this time, the belt is in the first deviation state, and the status indicator 15 displays yellow. After the belt has a first-level deviation, it continues to deviate, and the belt continues to squeeze the extrusion end 1A. The extrusion end 1A drives the sensing end 1B to continue to move away from the belt through the connecting rod 1C, so that the first signal receiving component 14 cannot receive the signal emitted by the first signal transmitting component 9, and the second signal receiving component 19 cannot receive the signal emitted by the second signal transmitting component 18. At this time, the belt is in a second-level deviation state, and the status indicator light 15 displays red.

[0056] The contact assembly of the deviation detection device provided in the present application is small in size, compact in structure, high in detection accuracy, and easy to install, thereby solving the problems of the existing vertical roller deviation switch, such as limited installation environment, long vertical roller components, and non-compact structure.

[0057] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without creative effort.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0059] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0060] In the present application, unless otherwise specified, directional words such as "up" and "down" are generally used with reference to the directions shown in the drawings, or with reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are generally used with reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present application.

[0061] In this application, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "join", "hinge", etc. 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0062] The above is only an exemplary embodiment of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope recorded in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A deviation detection device for a belt conveyor, the belt conveyor comprising a conveyor belt, the deviation detection device comprising: A mounting assembly, a contact assembly, a spring assembly, a first signal transmitting assembly, and a first signal receiving assembly; The mounting assembly is used to mount the deviation detection device on the belt conveyor equipment; The contact assembly includes an extrusion end, a sensing end, and a connecting rod between the extrusion end and the sensing end, wherein, when the deviation detection device is installed on the belt conveyor equipment through the installation assembly, the extrusion end faces the conveyor belt, the sensing end faces away from the conveyor belt, and when the conveyor belt squeezes the extrusion end, the extrusion end can drive the sensing end to move away from the conveyor belt through the connecting rod; The spring assembly is arranged corresponding to at least a portion of the connecting rod, and when the extruding end drives the sensing end to move away from the conveyor belt through the connecting rod, the spring assembly can provide a force for the extruding end in the direction of the conveyor belt; The first signal transmitting component is arranged opposite to the first signal receiving component, and the first signal transmitting component and the first signal receiving component are arranged on a side of the deviation detection device away from the extrusion end, wherein in an initial state, the first signal receiving component can receive a signal transmitted by the first signal transmitting component; In the first deviation state, the conveyor belt squeezes the extrusion end, and the extrusion end drives the sensing end to move away from the conveyor belt through the connecting rod, so that the first signal receiving component cannot receive the signal emitted by the first signal emitting component.

2. The deviation detection device according to claim 1, further comprising: a second signal transmitting component and a second signal receiving component, wherein the second signal transmitting component is arranged opposite to the second signal receiving component, and the second signal transmitting component and the second signal receiving component are arranged on a side of the deviation detection device away from the extrusion end, and the distance between the second signal transmitting component and the extrusion end is greater than the distance between the first signal transmitting component and the extrusion end, wherein, In the secondary deviation state, the conveyor belt squeezes the extrusion end, and the extrusion end drives the sensing end to move away from the conveyor belt through the connecting rod, so that the first signal receiving component cannot receive the signal emitted by the first signal emitting component, and the second signal receiving component cannot receive the signal emitted by the second signal emitting component.

3. The deviation detection device according to claim 2, further comprising: A status indicator light, wherein the status indicator light can display different colors for the initial state, the first-level deviation state, and the second-level deviation state.

4. The deviation detection device according to any one of claims 1 to 3, further comprising: A bushing is disposed outside at least a portion of the connecting rod.

5. The deviation detection device according to claim 3, further comprising: A circuit board assembly is used to supply power to the first signal transmitting assembly, the first signal receiving assembly, the second signal transmitting assembly, the second signal receiving assembly and the status indicator light.

6. The deviation detection device according to any one of claims 1 to 3, further comprising: A limiting member is provided corresponding to the contact component and is used to limit the position of the contact component.

7. The deviation detection device according to any one of claims 1 to 3, further comprising: A cover shell is arranged outside at least a portion of the deviation detection device.

8. The deviation detection device according to any one of claims 1 to 3, further comprising: A sealing component is disposed between the contact component and the mounting component.

9. The deviation detection device according to any one of claims 1 to 3, further comprising: A cable is used to connect the deviation detection device to an external power source.

10. The deviation detection device according to claim 9, further comprising: A wire protection tube sleeve is arranged outside the cable and connected to the cover shell.

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