Conveyor monitoring device

Abstract

The utility model discloses a conveyor monitoring device, which is characterized in that a lifting device is arranged at the turn-back position of a conveyor, and the monitoring device drives a rack to ascend by rotating a gear and drives a limiting rod to deviate, so that the extension part of the limiting rod is far away from the rack, a reset spring is compressed, and a roller is controlled to be in contact with the conveyor; the device can meet the speed monitoring requirements of different heights, in the unlocking process, the fixed sleeve is pressed downwards, the reset spring is compressed, the rack descends to complete unlocking operation, the rolling wheel of the monitoring device and the conveyor rotate synchronously, an encoder on the rolling wheel converts the rotating speed into an electric signal, the electric signal is transmitted to a remote monitoring system through a signal transmitter, and the remote monitoring system is started. In addition, the idler wheels are connected with the guide rods through the sliding blocks, the sliding blocks stably operate under the support of the springs, impact caused by vibration of the conveyor is buffered, it is ensured that the monitoring device works stably, accurate data are provided, and it is ensured that the conveyor operates efficiently and safely.

Description

Technical Field

[0001] This utility model relates to the field of conveyor equipment technology, specifically a conveyor monitoring device. Background Technology

[0002] In underground mines or tunnels, material handling requires efficient and continuous operation. Bulk materials such as ore, coal, and sand are usually transported quickly and continuously using conveyors. The application of conveyors can effectively replace manual transportation, reduce labor costs, and significantly improve transportation efficiency. However, when using conveyors, excessively high conveying speeds can cause excessive wear and even malfunctions to key components such as drive units, transmission systems, rollers, and bearings. For example, if the belt runs at a speed exceeding the rated speed, it will experience excessive stretching, wear, or even breakage, leading to downtime or the need for maintenance. In addition, if the conveyor runs at excessive speed, the material conveying trajectory cannot remain stable, causing problems such as material slippage, spillage, or accumulation. This leads to material waste and loss, environmental pollution, and even production line shutdowns, affecting the production progress of the entire mine or tunnel. Therefore, it is essential to strictly control the conveying speed to ensure the stability of the equipment and the efficiency of material transportation. Utility Model Content

[0003] The purpose of this utility model is to provide a conveyor monitoring device to solve the problem that excessively high conveying speeds can cause excessive wear and even malfunctions to key components of the conveyor, such as the drive unit, transmission system, rollers, and bearings. For example, if the belt runs at a speed exceeding the rated speed, it will experience excessive stretching, wear, or even breakage, leading to downtime or the need for maintenance. In addition, if the conveyor runs at excessive speed, the material conveying trajectory cannot be kept stable, causing problems such as material slippage, spillage, or accumulation. This will lead to material waste and loss, environmental pollution, and even production line shutdown, affecting the production progress of the entire mine or tunnel.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a conveyor monitoring device, disposed at the bottom of the conveyor's turnaround point, includes a lifting device, monitoring devices, and rollers. The lifting devices are symmetrically arranged on the left and right sides of the bottom of the conveyor's turnaround point and connected by a shaft. Monitoring devices are connected to the top of the lifting devices, and rollers are connected between the monitoring devices. The outer circumference of the rollers abuts against the bottom of the conveyor's turnaround point.

[0005] The lifting device includes a housing, a rack, a gear, a limiting rod, and a return spring. The housing contains a rack that slides within it. A fixing plate is connected to the top of the rack, and monitoring devices are connected to the left and right sides of the top of the fixing plate. One end of the rack meshes with a gear, and the other end abuts against the inner wall of the housing. The gear is hinged to the housing, and the gears at the left and right ends are connected by a shaft. A limiting rod is hinged to the bottom of the housing. The limiting rod is L-shaped, and a fixing sleeve is connected to the side of its horizontal end away from the vertical end. A horizontally positioned extension is connected to the top of the vertical end, perpendicular to the vertical end. The other end of the extension is tapered, and its tapered end meshes with the rack. A return spring is connected inside the fixing sleeve, with one end abutting against the inner wall of the fixing sleeve and the other end abutting against the inner wall of the bottom of the housing.

[0006] The monitoring device includes a connecting frame, a guide rod, a slider, and a spring. The connecting frame is connected to the left and right sides of the fixed plate. Guide grooves are respectively opened on the corresponding end faces between the two connecting frames. A vertically erected guide rod is connected in the guide groove, and the bottom end of the guide rod is connected to the inner wall of the bottom end of the guide groove. A limit block is connected to the top end of the guide rod. A slider is connected to the guide rod and slides in cooperation with the guide rod. Rollers are connected between the left and right sliders. A spring is provided between the slider and the inner wall of the bottom end of the guide groove, and is sleeved on the guide rod. One end of the spring abuts against the inner wall of the bottom end of the guide groove, and the other end abuts against the bottom end of the slider.

[0007] Preferably, the contact ends of the gear and the housing are respectively connected to bearing seats.

[0008] Preferably, it also includes an encoder, which is coaxially arranged with the roller and connected to the slider on the left side.

[0009] Preferably, it also includes a signal transmitter, which is disposed on the slider at the left end and electrically connected to the encoder.

[0010] Preferably, the end of the roller furthest from the encoder is connected to the contact end of the slider with a bearing seat.

[0011] Preferably, a gap is left between the bottom end of the lateral end of the limiting rod and the bottom end of the outer shell to provide the rotation range of the limiting rod.

[0012] Preferably, it also includes a pressure rod connected to the top of the fixed sleeve, and the pressure rods on the left and right sides are connected by a connecting rod.

[0013] Preferably, an adjusting handwheel is connected to the input shaft of the gear.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] By installing a lifting device at the conveyor's turnaround point, the conveyor's operating status can be effectively monitored. The top of the lifting device is connected to a monitoring device. A rotating gear drives a rack to rise. As the rack rises, it causes a limit rod to shift, moving its extension away from the rack teeth and simultaneously compressing a return spring. As the rack rises, the return spring's force causes the limit rod to rotate, restricting the movement of the next tooth. This ensures the monitoring device's rollers are in close contact with the conveyor's turnaround point. In this way, the monitoring device can adapt to speed monitoring requirements at different heights. During unlocking, the fixing sleeve is pressed down, the return spring is compressed, and then the device is lowered by rotating the gear, completing the unlocking operation.

[0016] The outer circumference of the monitoring device's roller contacts the surface of the conveyor and rotates synchronously with it. One end of the roller is connected to an encoder, which converts the roller's rotational speed into an electrical signal. This signal is then transmitted to the remote monitoring system via a signal transmitter for real-time monitoring of the conveyor's operating speed. Furthermore, the roller is connected to a guide rod via a slider. The slider slides on the guide rod and is supported by a spring at its bottom. When the conveyor vibrates, the slider's smooth operation is ensured by the impact force. When the conveyor shakes, the roller causes the slider to press down, creating a buffer effect and preventing the impact force from affecting the monitoring system. This also ensures that the roller remains in close contact with the conveyor, maintaining stable rotation. In this way, the monitoring device can operate continuously and stably in different working environments, providing accurate speed data and ensuring the efficient and safe operation of the conveyor. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the lifting device and monitoring device of this utility model.

[0019] Figure 3 This is a schematic diagram of the monitoring device structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the lifting device structure of this utility model.

[0021] In the diagram: 1. Conveyor; 2. Lifting device; 201. Housing; 202. Rack; 203. Gear; 204. Limiting rod; 205. Fixing sleeve; 206. Return spring; 207. Pressing rod; 3. Monitoring device; 301. Connecting frame; 302. Guide rod; 303. Slider; 304. Spring; 4. Roller; 5. Encoder; 6. Signal transmitter. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1: Please refer to Figure 1-3 This utility model provides an embodiment of a conveyor monitoring device, which is installed at the bottom of the turnaround point of a conveyor 1. The device includes a lifting device 2, a monitoring device 3, and rollers 4. The rollers 4 are in close contact with the surface of the conveyor 1 and rotate with the conveyor 1, driving the encoder 5 to rotate and monitoring the operating speed of the conveyor 1. By contacting the bottom of the turnaround point of the conveyor 1, the rollers 4 can reflect the rotation status of the conveyor 1 in real time. The lifting devices 2 are symmetrically arranged on the left and right sides of the bottom of the turnaround point of the conveyor 1, connected by a shaft. The lifting devices 2 at both ends are connected by a shaft, making the two lifting devices 2 form a whole, rising and falling synchronously. The top of each lifting device 2 is connected to a monitoring device 3, and rollers 4 are connected between the monitoring devices 3. The outer circumference of the rollers 4 abuts against the bottom of the turnaround point of the conveyor 1.

[0027] The monitoring device 3 includes a connecting frame 301, a guide rod 302, a slider 303, and a spring 304. The connecting frame 301 is connected to the left and right sides of the fixed plate, providing stable support for the monitoring device 3. A guide groove is provided on the connecting frame 301, with its inner wall abutting against the slider 303 to provide a sliding position for the slider 303. Guide grooves are respectively provided on the corresponding end faces between the two connecting frames 301, and a vertically erected guide rod 302 is connected within each guide groove. The slider 303 is connected to the vertically erected guide rod 302, allowing the slider 303 to slide along the guide rod 302. The roller 4 is connected to the inner wall of the bottom of the guide groove, and a limit block is connected to the top. The limit block is used to move the roller 4 when the belt of the conveyor 1 vibrates, which in turn moves the slider 303 downward, compressing the spring 304. The spring 304 generates elastic potential energy after being compressed, which drives the slider 303 to return to its original position. At the same time, the top of the spring 4 abuts against the limit block to prevent it from exceeding the predetermined range. The radius of the roller 4 is greater than the height of the guide groove to prevent the belt from contacting the top of the connecting frame 301 when the roller 4 moves downward. The slider 303 is connected to the guide rod 302 and slides in cooperation with the guide rod 302. The slider 303 moves synchronously when the roller 4 moves. Simultaneously, the spring 304 is compressed, causing the compressed spring 304 to reset the slider 303, ensuring that the roller 4 remains in contact with the belt and rotates synchronously. Rollers 4 connect the left and right sliders 303. A spring 304 is installed between the slider 303 and the inner wall of the bottom of the guide groove, sleeved on the guide rod 302. One end of the spring 304 contacts the inner wall of the bottom of the guide groove, and the other end contacts the bottom of the slider 303. The spring 304 supports the slider 303 and buffers the roller 4 when the belt vibrates, while also providing a reset function to reset the slider 303. The system also includes an encoder 5, coaxially mounted with the roller 4 and connected to the slider on the left side. On slider 303, encoder 5 is coaxially mounted with roller 4. Encoder 5 converts the rotational speed of roller 4 into an electrical signal for real-time monitoring of conveyor 1 speed. It also includes signal transmitter 6, which is mounted on slider 303 on the left side and electrically connected to encoder 5. Signal transmitter 6 transmits the electrical signal generated by encoder 5 to remote monitoring system to ensure that remote monitoring system can receive and process the transmitted data in real time, facilitating remote monitoring of conveyor 1 operating speed. The end of roller 4 away from encoder 5 is connected to the contact end of slider 303 with bearing seat for supporting and positioning roller 4, while reducing friction when rotating synchronously with conveyor 1.

[0028] In use, the monitoring device 3 is placed at the bottom of the turnaround point of the conveyor 1, so that the roller 4 abuts against the bottom turnaround point of the conveyor 1. Simultaneously, as the conveyor 1 runs, the roller 4 rotates synchronously, driving the shaft of the encoder 5 at one end to rotate synchronously. The encoder 5 converts the rotational speed of the roller 4 into an electrical signal, and the signal transmitter 6 transmits the electrical signal generated by the encoder 5 to the remote monitoring system. When the belt vibrates...

[0029] Roller 4 moves accordingly, which in turn drives slider 303 to move downward, compressing spring 304. Spring 304 generates elastic potential energy after being compressed, which drives slider 303 to reset, ensuring that roller 4 is always in contact with the belt and rotates synchronously, and monitoring the running speed.

[0030] Example 2: Please refer to Figure 1 , 2 4. Based on Example 1, it also has the following structure:

[0031] The lifting device 2 includes a housing 201, a rack 202, a gear 203, a limiting rod 204, and a return spring 206. The rack 202 is housed within the housing 201 and slides within it. The housing 201 provides support and protection, housing key components such as the rack 202, gear 203, and limiting rod 204. It provides a fixed frame, ensuring the stability and structural integrity of the internal components. Since the device is not connected to a frame, some complex fixing structures can be omitted, simplifying the design and reducing production and installation costs. This also makes the device easier to maintain and replace components. A fixing plate is connected to the top of the rack 202, which slides within the housing 201. The rack 202 meshes with gear 203 to achieve vertical movement. A fixed plate is connected to the top of the rack 202. When the rack 202 rises, it drives the monitoring device 3 to rise, causing the roller 4 to abut against the bottom of the reversing point of the conveyor 1 for real-time monitoring. Monitoring devices 3 are connected to the left and right sides of the top of the fixed plate. One end of the rack 202 meshes with gear 203. The gear 203 drives the rack 202 to move linearly through meshing with the rack 202, thereby achieving the lifting operation. The gear 203 rotates by hinge to the outer shell 201, ensuring stability during rotation. Bearing seats are connected to the contact ends of the gear 203 and the outer shell 201. The bearing seats reduce friction during rotation and support the shaft of the gear 203. One end of the gear 203 abuts against the inner wall of the housing. The gear 203 is hinged to the housing 201. The gears 203 on both sides are connected by a shaft, forming a whole. This allows the lifting device 2 to rise or fall synchronously. A limit rod 204 is hinged to the bottom of the housing 201. When the rack 202 rises, the limit rod 204 meshes with the rack 202 to control the range of movement of the rack 202. The extension part abuts against the two teeth to limit the movement, preventing the rack 202 from sliding after adjusting the lifting height and preventing it from exceeding the set stroke. The L-shaped structure and tapered end of the limit rod 204 mesh with the rack 202, providing a precise limiting function and increasing the overall stability. The limit rod 204 is L-shaped. A fixed sleeve 205 is connected to the side of the horizontal end away from the vertical end. A horizontally positioned extension is connected to the top of the vertical end, perpendicular to the vertical end. The other end of the extension is tapered, engaging with a rack 202. A return spring 206 is connected inside the fixed sleeve 205. The return spring 206 generates a reaction force between the rack 202 and the limiting rod 204, ensuring the device returns to its initial state and preventing jamming. One end of the return spring 206 abuts against the inner wall of the fixed sleeve 205, and the other end abuts against the bottom inner wall of the outer casing 201. A gap is left between the bottom of the horizontal end of the limiting rod 204 and the bottom of the outer casing 201 to provide the rotation range of the limiting rod 204.

[0032] It also includes a pressing rod 207, connected to the top of the fixed sleeve 205, and the pressing rods 207 on both sides are connected by a connecting rod. When unlocking, pressing the connecting rod causes the pressing rods 207 to press down synchronously, driving the fixed sleeve 205 down, causing the limiting rod 204 to rotate, and the extension part to move away from the teeth. At this time, the device unlocks.

[0033] An adjusting handwheel is connected to the input shaft of gear 203. The adjusting handwheel is used to drive gear 203 to rotate and simultaneously control rack 202 to rise or fall.

[0034] When the rotating gear 203 drives the rack 202 to rise, the teeth of the rack 202 contact the extension of the limiting rod 204, causing the limiting rod 204 to shift as a whole. This causes the extension of the limiting rod 204 to move away from the teeth of the rack 202, and simultaneously compresses the return spring 206. As the rack 202 rises, the force of the return spring 206 causes the limiting rod 204 to rotate. The extension of the limiting rod 204 will restrict the movement of the next tooth, thus bringing the roller 4 of the monitoring device 3 into close contact with the reversing point of the conveyor 1. In this way, the monitoring device 3 can adapt to the speed monitoring requirements at different heights. During the unlocking process, the fixing sleeve 205 is pressed down, and the return spring 206 is also compressed. Then, the device is lowered by rotating the gear 203, completing the unlocking operation.

[0035] The above description is merely an embodiment of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A conveyor monitoring device, installed at the bottom of the turnaround point of the conveyor (1), characterized in that: The conveyor includes a lifting device (2), a monitoring device (3), and rollers (4). The lifting device (2) is symmetrically arranged on the left and right sides of the bottom end of the turnaround point of the conveyor (1) and connected by a shaft. The top of the lifting device (2) is connected to the monitoring device (3), and the monitoring devices (3) are connected to each other by rollers (4). The outer circumference of the rollers (4) abuts against the bottom end of the turnaround point of the conveyor (1). The lifting device (2) includes a housing (201), a rack (202), a gear (203), a limiting rod (204), and a return spring (206). The housing (201) contains a rack (202), which slides within the housing (201). A fixing plate is connected to the top of the rack (202), and monitoring devices (3) are connected to the left and right sides of the top of the fixing plate. One end of the rack (202) meshes with a gear (203), and the other end abuts against the inner wall of the housing. The gear (203) is hinged to the housing (201), and the gears (204) at the left and right ends are connected to the gear (205). 3) A limiting rod (204) is hinged to the bottom end of the outer casing (201) via a shaft connection. The limiting rod (204) is L-shaped, with a fixed sleeve (205) connected to the side of the horizontal end away from the vertical end. The top end of the vertical end is connected to a horizontally arranged extension, which is perpendicular to the vertical end. The other end of the extension is tapered, and its tapered end meshes with a rack (202). A return spring (206) is connected inside the fixed sleeve (205). One end of the return spring (206) abuts against the inner wall of the fixed sleeve (205), and the other end abuts against the inner wall of the bottom end of the outer casing (201). The monitoring device (3) includes a connecting frame (301), a guide rod (302), a slider (303), and a spring (304). The connecting frame (301) is connected to the left and right sides of the fixed plate. Guide grooves are respectively opened on the corresponding end faces between the two connecting frames (301). A vertically erected guide rod (302) is connected in the guide groove. The bottom end of the guide rod (302) is connected to the bottom inner wall of the guide groove. A limit block is connected to the top end. A slider (303) is connected on the guide rod (302). The slider (303) slides and engages with the guide rod (302). A roller (4) is connected between the sliders (303) on the left and right sides. A spring (304) is provided between the slider (303) and the bottom inner wall of the guide groove. It is sleeved on the guide rod (302). One end of the spring abuts against the bottom inner wall of the guide groove, and the other end abuts against the bottom end of the slider (303).

2. The conveyor monitoring device according to claim 1, characterized in that: The gear (203) and the housing (201) are respectively connected to bearing seats at their contact ends.

3. The conveyor monitoring device according to claim 1, characterized in that: It also includes an encoder (5), which is coaxially arranged with the roller (4) and connected to the slider (303) on the left side.

4. The conveyor monitoring device according to claim 1, characterized in that: It also includes a signal transmitter (6), which is mounted on the slider (303) on the left side and is electrically connected to the encoder (5).

5. The conveyor monitoring device according to claim 1, characterized in that: The end of the roller (4) away from the encoder (5) is connected to the contact end of the slider (303) with a bearing seat.

6. The conveyor monitoring device according to claim 1, characterized in that: A gap is left between the bottom of the lateral end of the limiting rod (204) and the bottom of the outer shell (201) to provide the rotation range of the limiting rod (204).

7. The conveyor monitoring device according to claim 1, characterized in that: It also includes a pressure rod (207) connected to the top of the fixed sleeve (205), and the pressure rods (207) on the left and right sides are connected by a connecting rod.

8. The conveyor monitoring device according to claim 1, characterized in that: An adjusting handwheel is connected to the input shaft of the gear (203).

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