Adhesive tape elongation monitoring device for adhesive tape bucket elevator

Abstract

The adhesive tape elongation monitoring device comprises a tensioning shaft, a balancing weight, a screw rod, a connecting rod and a magnetostriction displacement sensor, the tensioning shaft is located in a conveying assembly, one end of the connecting rod is fixedly connected with one end of the tensioning shaft, the balancing weight is fixed to the tensioning shaft, and the screw rod is connected with the connecting rod. Two screw rods are fixed between the conveying assembly and the tensioning shaft; the magnetostrictive displacement sensor comprises a magnetic head, a waveguide rod and a waveguide rod support, the other end of the connecting rod is fixedly connected with the magnetic head, the magnetic head is arranged close to the waveguide rod and does not make contact with the waveguide rod, the two ends of the waveguide rod are fixed to the waveguide rod support, and the waveguide rod support is fixed to the inner wall of the machine shell; the connecting rod is firmly connected with the tensioning shaft, accurate displacement transmission is ensured, the waveguide rod is firmly installed on the machine shell through the fixing clamp, accurate monitoring of position changes of the magnetic head is achieved, and then the elongation of the adhesive tape is accurately obtained.

Description

Technical Field

[0001] This utility model relates to the field of tape monitoring technology, and in particular to a tape elongation monitoring device for tape bucket elevators. Background Technology

[0002] In cement production, conveyor belt bucket elevators are subjected to dynamic loads and material impacts over long periods. The conveyor belts undergo expansion and contraction due to fatigue or temperature changes, which can lead to tension imbalance, joint cracking, or delamination. Existing conveyor belt elongation monitoring technologies have the following shortcomings:

[0003] 1) High reliance on manual inspection: The belt elongation is assessed by periodically measuring the position of the tensioning shaft, which has poor timeliness and low accuracy (error of more than ±5mm);

[0004] 2) Limitations of mechanical sensors: Traditional wire-type displacement sensors are susceptible to dust contamination and mechanical wear, resulting in short lifespan and high maintenance costs;

[0005] 3) Poor environmental adaptability: Electronic components are prone to failure under high temperature (80℃) and high humidity conditions, leading to data drift.

[0006] Therefore, there is an urgent need for a tape elongation monitoring device for tape bucket elevators that can monitor tape elongation. Utility Model Content

[0007] The purpose of this invention is to provide a belt elongation monitoring device for a belt bucket elevator to solve the above-mentioned problems.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A belt elongation monitoring device for a belt bucket elevator, the belt bucket elevator including a housing and a conveying assembly, the housing being disposed outside the conveying assembly; the belt elongation monitoring device for the belt bucket elevator including a tension shaft, a counterweight, screws, a connecting rod, and a magnetostrictive displacement sensor, the tension shaft being located inside the conveying assembly, one end of the connecting rod being fixedly connected to one end of the tension shaft, the counterweight being fixed on the tension shaft, and two screws being fixed between the conveying assembly and the tension shaft; the magnetostrictive displacement sensor including a magnetic head, a waveguide rod, and a waveguide rod bracket, the other end of the connecting rod being fixedly connected to the magnetic head, the magnetic head being disposed close to the waveguide rod but not in contact with the waveguide rod, both ends of the waveguide rod being fixed on the waveguide rod bracket, and the waveguide rod bracket being fixed to the inner wall of the housing.

[0010] Furthermore, the conveying assembly includes a drive wheel, a driven wheel, and a conveyor belt. The conveyor belt is wound around the drive wheel and the driven wheel. The housing covers the drive wheel, the driven wheel, and the conveyor belt. The tensioning shaft is disposed between the drive wheel and the driven wheel. A central shaft passes through the center of the driven wheel and is rotatably connected to the driven wheel. Two screws are disposed between the central shaft and the tensioning shaft, and the two screws are arranged in parallel.

[0011] Furthermore, one end of the connecting rod is fixedly connected to the side end of the tensioning shaft by bolts or welding.

[0012] Furthermore, it also includes fixing clips, which are disposed at both ends of the waveguide rod and are fixedly connected to the waveguide rod bracket by bolts.

[0013] This utility model discloses the following technical effects: It provides a belt elongation monitoring device for a belt bucket elevator. Through the cooperation of a tensioning shaft, a counterweight, and a screw, when the belt elongates, the gravity of the counterweight causes the tensioning shaft to drive the driven wheel downwards, ensuring constant contact with the belt. This ensures stable belt operation, reduces slippage and deviation, and extends belt lifespan. The downward movement of the tensioning shaft causes a change in the position of the magnetic head. The magnetostrictive displacement sensor's magnetic head and waveguide rod are non-contact, allowing for precise and sensitive sensing of the positional change of the magnetic head as the tensioning shaft displaces. This accurately monitors the belt elongation, providing reliable data for equipment maintenance. The reasonable structural design of each component facilitates installation and disassembly, enabling convenient daily maintenance and repair, effectively reducing equipment maintenance costs, improving equipment efficiency, and allowing the device to better adapt to different working conditions. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This utility model discloses a structural schematic diagram of a tape elongation monitoring device for a tape bucket elevator.

[0016] Figure 2 : Figure 1 Schematic diagram of the AA structure;

[0017] Figure 3 : Schematic diagram of the limiting frame structure of this utility model;

[0018] Figure 4: Schematic diagram of the limiting frame, central shaft, and tensioning shaft of this utility model;

[0019] Specifically, 201, housing; 202, driven wheel; 203, drive wheel; 204, tape; 205, connecting rod; 206, magnetic head; 207, waveguide rod; 208, waveguide rod bracket; 209, fixing clamp; 2010, tensioning shaft; 2011, counterweight; 2012, screw; 2013, central shaft; 2014, limit frame; 2015, limit groove one; 2016, limit groove two; 2017, limit piece one; 2018, limit piece two. Detailed Implementation

[0020] 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.

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] The specific implementation method is as follows:

[0023] like Figures 1-2 As shown, this utility model discloses a belt elongation monitoring device for a belt bucket elevator, including a tensioning shaft 2010, a counterweight 2011, a screw 2012, a connecting rod 205, and a magnetostrictive displacement sensor. The tensioning shaft 2010 is located inside the conveying assembly. One end of the connecting rod 205 is fixedly connected to one end of the tensioning shaft 2010. The counterweight 2011 is fixed on the tensioning shaft 2010. Two screws 2012 are fixed between the conveying assembly and the tensioning shaft 2010. The magnetostrictive displacement sensor includes a magnetic head 206, a waveguide rod 207, and a waveguide rod support 208. The other end of the connecting rod 205 is fixedly connected to the magnetic head 206. The magnetic head 206 is positioned close to the waveguide rod 207, but the magnetic head 206 does not contact the waveguide rod 207. Both ends of the waveguide rod 207 are fixed on the waveguide rod support 208, and the waveguide rod support 208 is fixed to the inner wall of the housing 201.

[0024] This invention employs a magnetostrictive displacement sensor. A sensitive element made of magnetostrictive material is installed inside the waveguide rod 207. The measurement process involves generating a current pulse in the sensor's electronic chamber. This current pulse propagates within the waveguide rod 207, thereby generating a circumferential magnetic field outside the waveguide rod 207. When this magnetic field intersects with the magnetic field generated by the movable magnetic head 206, a strain mechanical wave pulse signal is generated within the waveguide rod 207 due to the magnetostrictive effect. This strain mechanical wave pulse signal propagates at a fixed sound speed and is quickly detected by the electronic chamber. Since the propagation time of this strain mechanical wave pulse signal within the waveguide rod 207 is proportional to the distance between the movable magnetic ring and the electronic chamber, this distance can be determined with high precision by measuring the time.

[0025] The tension adjustment system in this invention, consisting of a tensioning shaft 2010, a counterweight 2011, and a screw 2012, enables the tensioning shaft 2010 to move smoothly downwards due to the gravity of the counterweight 2011 when the conveyor belt 204 elongates. This gravity, in turn, causes the driven wheel 202 to move downwards, allowing for timely adjustment of the conveyor belt 204 tension and effectively preventing slippage and deviation. The magnetostrictive displacement sensor employs a non-contact design between the magnetic head 206 and the waveguide rod 207. When the tensioning shaft 2010 shifts, the magnetic head 206 moves accordingly. The magnetostrictive effect allows the waveguide rod 207 to sensitively detect changes in the position of the magnetic head 206, accurately calculating the elongation of the conveyor belt 204 and providing precise data support for equipment maintenance. Furthermore, the modular design of each component results in a simple structure, easy installation and disassembly, and convenient daily inspection and maintenance, reducing equipment maintenance costs and improving efficiency. This allows the system to better adapt to the operational needs of conveyor belt bucket elevators under different working conditions.

[0026] In this embodiment, the conveying assembly includes a drive wheel 203, a driven wheel 202, and a conveyor belt 204. The conveyor belt 204 is wound around the drive wheel 203 and the driven wheel 202. The housing 201 covers the drive wheel 203, the driven wheel 202, and the conveyor belt 204. The tensioning shaft 2010 is disposed between the drive wheel 203 and the driven wheel 202. A central shaft 2013 is inserted through the center of the driven wheel 202. The central shaft 2013 is rotatably connected to the driven wheel 202. Two screws 2012 are disposed between the central shaft 2013 and the tensioning shaft 2010, and the two screws 2012 are arranged in parallel.

[0027] The drive wheel 203 and driven wheel 202 of this utility model work together to provide stable driving force and support force for the conveyor belt 204, so that the conveyor belt 204 can run continuously and smoothly, thereby ensuring the stable conveying of materials by the conveyor belt bucket elevator.

[0028] In this embodiment, one end of the connecting rod 205 is fixedly connected to the side end of the tensioning shaft 2010 by bolts or welding, and the other end of the connecting rod 205 is fixedly connected to the magnetic head 206 by bolts or welding.

[0029] Whether using bolted connections or welding, this invention can securely fix the connecting rod 205 to the side end of the tensioning shaft 2010 and the magnetic head 206.

[0030] In this embodiment, a fixing clip 209 is also included. The fixing clip 209 is disposed at both ends of the waveguide rod 207, and the two ends of the fixing clip 209 are fixedly connected to the waveguide rod bracket 208 by bolts.

[0031] The fixing clamp 209 of this utility model is fixedly connected to the waveguide rod bracket 208 at both ends by bolts, which can firmly install the waveguide rod 207 on the waveguide rod bracket 208. This installation method can ensure that the waveguide rod 207 maintains a stable position during the operation of the conveyor belt bucket elevator, and will not be displaced or loosened due to equipment vibration or other external forces, and accurately monitor the elongation of the conveyor belt 204.

[0032] In this invention, the magnetic head 206 and the waveguide rod 207 form a magnetostrictive measurement circuit. This non-contact measurement method has high measurement accuracy, reaching ±0.1mm.

[0033] In this embodiment, as Figure 3-4 As shown, it also includes two limiting frames 2014, which are arranged on both sides of the central shaft 2013 and the tensioning shaft 2010. A first limiting groove 2015 and a second limiting groove 2016 are provided on the limiting frames 2014. The width of the first limiting groove 2015 is the same as the diameter of the central shaft 2013, and the width of the second limiting groove 2016 is the same as the diameter of the tensioning shaft 2010. Both ends of the central shaft 2013 pass through the first limiting groove 2015 on both sides. Two first limiting pieces 2017 are provided on the central shaft 2013, located on both sides of the first limiting groove 2015. The diameter of the first limiting piece 2017 is larger than that of the central shaft 2010. The diameter of the spindle 2013 and the two ends of the tensioning shaft 2010 pass through the limiting grooves 2016 on both sides. Two limiting pieces 2018 are provided on the tensioning shaft 2010, located on both sides of the limiting grooves 2016. The diameter of the limiting pieces 2018 is larger than the diameter of the tensioning shaft 2010. The limiting grooves 2015, 2016, 2017, and 2018 limit and fix the spindle 2013 and the tensioning shaft 2010, preventing the driven wheel 202 connected to the spindle 2013 from deviating and restricting the driven wheel 202 to move only vertically up and down.

[0034] In practical use, the belt elongation monitoring device for a belt bucket elevator of this utility model involves the rotation of the drive wheel 203, which drives the belt 204 wound around it through friction, thereby lifting the material. The driven wheel 202 assists the belt 204 in forming a closed loop. During operation, if the belt 204 elongates due to factors such as temperature changes or prolonged use, the tensioning shaft 2010, the central shaft 2013, and the screw 2012 move downwards under the gravity of the counterweight 2011, thus affecting the belt 204. A pulling force is applied to maintain the tension of the conveyor belt 204. When the tensioning shaft 2010 moves, the connecting rod 205 fixedly connected to it moves synchronously, and the magnetic head 206 connected to the other end of the connecting rod 205 also moves accordingly. When the position of the magnetic head 206 changes, the internal circuit of the waveguide rod 207 converts the relative position of the magnetic head 206 into a corresponding electrical signal output, which can accurately calculate the displacement of the magnetic head 206, and thus obtain the elongation of the conveyor belt 204. This makes the monitoring data accurate and reliable, and provides an effective basis for the maintenance and operation of the conveyor belt bucket elevator.

[0035] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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.

[0036] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0037] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A belt elongation monitoring device for a belt bucket elevator, the belt bucket elevator comprising a housing and a conveying assembly, the housing being disposed outside the conveying assembly; characterized in that: The system includes a tensioning shaft, a counterweight, screws, a connecting rod, and a magnetostrictive displacement sensor. The tensioning shaft is located inside the conveying assembly. One end of the connecting rod is fixedly connected to one end of the tensioning shaft. The counterweight is fixed on the tensioning shaft. Two screws are fixed between the conveying assembly and the tensioning shaft. The magnetostrictive displacement sensor includes a magnetic head, a waveguide rod, and a waveguide rod bracket. The other end of the connecting rod is fixedly connected to the magnetic head. The magnetic head is positioned close to the waveguide rod, but does not contact the waveguide rod. Both ends of the waveguide rod are fixed to the waveguide rod bracket, and the waveguide rod bracket is fixed to the inner wall of the housing.

2. The conveyor belt elongation monitoring device for a conveyor belt bucket elevator according to claim 1, characterized in that: The conveying assembly includes a drive wheel, a driven wheel, and a conveyor belt. The conveyor belt is wound around the drive wheel and the driven wheel. The housing covers the drive wheel, the driven wheel, and the conveyor belt. The tensioning shaft is disposed between the drive wheel and the driven wheel. A central shaft passes through the center of the driven wheel and is rotatably connected to the driven wheel. Two screws are disposed between the central shaft and the tensioning shaft, and the two screws are arranged in parallel.

3. The conveyor belt elongation monitoring device for a conveyor belt bucket elevator according to claim 2, characterized in that: One end of the connecting rod is fixedly connected to one end of the tensioning shaft by bolts or welding.

4. The conveyor belt elongation monitoring device for a conveyor belt bucket elevator according to claim 1, characterized in that: It also includes fixing clips, which are disposed at both ends of the waveguide rod and are fixedly connected to the waveguide rod bracket by bolts.

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