Passive self-heating deicing carrier roller
By using electromagnetic induction to generate current and using coils to generate heat, the problem of icing in the rollers in the rollers is solved, and the smooth operation and service life of the rollers are achieved.
Patent Information
- Application Number
- CN202510435284.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2025-05-30
AI Technical Summary
Existing rollers are prone to freezing when running in low-temperature environments, resulting in uneven surfaces, increasing weight, unstable belt drives, easy derailment, and reduced service life.
A passive self-heating deicing driven roller is designed, which adopts a combination of a cylinder, a roller shaft, a bearing group, a positive electrode magnet, a negative electrode magnet, a coil and a resistive wire. The current is generated through electromagnetic induction, and the coil heats up, so that the inside of the cylinder remains warm and prevents icing.
The roller surface is kept free of freezing without external energy, ensuring smooth operation of the belt conveyor and extending service life.
Smart Images
Figure CN120057522A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of belt conveyors, and particularly to a self-heating ice-removing idler without external power source. Background Art
[0002] When the existing idlers operate in a low-temperature environment, the slime on the surface of the idlers will freeze because it contains moisture. The longer the operation time, the thicker the ice on the surface of the idlers will be, and the surface of the idlers will become more uneven. When the existing idlers operate in a low-temperature environment, the idler bodies will freeze. The longer the operation time, the thicker the idler bodies will freeze, the weight will gradually increase, the belt conveyor will run bumpily and unstably, the idlers are likely to derail from the conveyor frame, and the service lives of the idlers and the conveyor belt will be reduced. Summary of the Invention
[0003] In view of the above defects, the present invention provides a self-heating ice-removing driven idler, which includes: a cylinder body, a roller shaft, a bearing group, a positive magnet, a negative magnet, a coil, and a resistance wire. The bearing group is arranged at both ends of the roller shaft. The inner ring of the bearing is connected to the roller shaft, and the outer ring is connected to the inside of the cylinder body to realize the rotation of the cylinder body relative to the roller shaft. The positive magnet and the negative magnet are arranged on the inner wall of the cylinder body, and the positive magnet and the negative magnet are arranged opposite to each other. The coil is a closed loop and is arranged around the roller shaft between the positive magnet and the negative magnet. The resistance wire is connected to the coil, and the resistance wire forms a closed loop.
[0004] Preferably, the resistance wire is in two sections, and each section is connected in parallel with the coil.
[0005] Preferably, the coil is provided with two coils, the two coils are connected in parallel, the two ends of the resistance wire are respectively connected in parallel with the two coils, and both coils are connected to the roller shaft.
[0006] Preferably, an insulating layer is also arranged at the position where the coil is connected to the roller shaft.
[0007] Preferably, a buckle is also arranged inside the cylinder body. The buckle is fixed inside the cylinder body, and the positive magnet and the negative magnet are used to be clamped between the buckles.
[0008] The present invention can make the belt conveyor run more smoothly without any external energy, and the service life will be longer. Brief Description of the Drawings
[0009] Figure 1 It is a schematic diagram of the internal structure of the present invention.
[0010] Figure 2 It is Figure 1 the sectional view taken along A-A in
[0011] Figure 3 It is Figure 1 the partial enlarged view at position B in
[0012] Figure 4 This is the schematic diagram of the present invention.
[0013] Figure 5 、 6 These are the schematic diagrams of two implementation schemes for the connection of the coil and the resistance wire in the present invention.
[0014] Figure 7 This is the schematic diagram of the series connection of the coil and the resistance wire.
[0015] Figure 8 This is the schematic diagram of a idler roller in the prior art.
[0016] In the figure: cylinder body 10, roller shaft 20, bearing set 30, positive magnet 40, buckle 41, negative magnet 50, coil 60, insulating layer 61, resistance wire 70, idler roller 100. Detailed implementation manners
[0017] Refer to Figures 1-5 A self-heating ice-removing driven idler roller proposed by the present invention includes: a cylinder body 10, a roller shaft 20, a bearing set 30, a positive magnet 40, a negative magnet 50, a coil 60, and a resistance wire 70. The bearing set 30 is arranged at both ends of the roller shaft 20. The inner ring of the bearing is connected to the roller shaft 20, and the outer ring is connected to the inside of the cylinder body 10 to realize the rotation of the cylinder body 10 relative to the roller shaft 20. The positive magnet 40 and the negative magnet 50 are arranged on the inner wall of the cylinder body 10, and the positive magnet 40 and the negative magnet 50 are arranged opposite to each other. The coil 60 is a closed loop and is arranged around the roller shaft 20 between the positive magnet 40 and the negative magnet 50. The resistance wire 70 is connected to the coil 60, and the resistance wire 70 forms a closed loop.
[0018] Refer to Figure 8 This solution is applicable to the idler roller 100 on a belt conveyor. The idler roller includes a flat roller, a V-shaped roller, and a trough-shaped roller formed by the cooperation of three idler rollers, and is arranged on a frame body to form a structure for supporting the belt. On each belt conveyor, a set of idler rollers is arranged every 1-2 meters to support the belt. The power for the belt to run is driven by a driving roller at the head or the tail of the conveyor. The idler roller is driven to rotate by the friction force of the belt, and only the cylinder body 10 rotates during rotation. The passively rotating cylinder body 10 forms a power source for electromagnetic induction, and this power does not need to be provided externally, but is provided by the power of the belt running.
[0019] The positive magnet 40 and the negative magnet 50 have opposite magnetic properties. The coil 60 is a closed loop and is arranged on the roller shaft 20 and basically does not rotate. However, the positive magnet 40 and the negative magnet 50 rotate with the cylinder body 10, forming an electromagnetic induction effect and generating an electric current in the coil 60. The generation of the electric current causes the coil 60 to heat up, so that the inside of the cylinder body 10 has heat and temperature, and the cylinder body 10 heats up, so that ice does not form on the outside of the cylinder body 10.
[0020] Furthermore, the resistance wire 70 is a two-section type, and each section is connected in parallel with the coil 60. The resistance wires 70R at both ends are connected in parallel with the coils 60ab and 60cd respectively. The original method adopts the method of connecting the coil 60 and the resistance wire 70 in series. Although the current is relatively large in the series connection method, and because the cylinder 10 is in a rotating state, the speed of the tape is very fast, which can reach 5-6 meters / second, which can easily cause the coil 60 to be broken or the connection position of the coil 60 and the resistance wire 70 to be broken. Once the series connection is broken, no matter which position is broken, the entire coil 60 and the resistance wire 70 will be broken. Therefore, this solution adopts a parallel connection method. Even if a certain line is broken, it will not affect the circuit of the resistance wire 70. See Figure 5 , 6 、7.
[0021] Furthermore, the coil 60 is configured as two coils 60 , the two coils 60 are configured in parallel, the resistance wires 70 at both ends are respectively connected in parallel with the two coils 60 , and both coils 60 are connected to the roller shaft 20 .
[0022] In this solution, two coils 60 and two resistance wires 70 are arranged around the roller 20. When electromagnetic induction occurs, the coil 60 is made of a material with low resistance, such as copper, and the resistance wire 70 is made of a material with high resistance, such as tungsten. The coil 60 is used to generate current, and the resistance wire 70 is used to generate heat. Although the resistance wire 70 and the coil 60 may come into contact during the rotation of the cylinder 10, it does not affect the performance of their respective functions. Even if a contact point is formed, the current will still flow preferentially in the coil 60 due to the high resistance of the resistance wire 70, so it does not affect the respective functions of the coil 60 and the resistance wire 70.
[0023] Furthermore, an insulating layer 61 is provided at the position where the coil 60 is connected to the roller 20. Avoiding the connection between the coil 60 and the roller 20 not only makes the roller 20 charged, but also causes the current generated by the coil 60 to be consumed by the external structure such as the roller 20, and cannot be used for heating the coil 60, let alone heating the cylinder 10.
[0024] Furthermore, a buckle is provided inside the cylinder 10, and the buckle is fixed inside the cylinder 10, and the buckle is used to clamp the positive magnet 40 and the negative magnet 50. In this solution, a welding structure cannot be used between the magnet and the cylinder 10, because welding cannot be achieved due to the magnet material, and bolt connection is not used, because bolt connection will leave more connection points on the cylinder 10, and the cylinder 10 is in direct contact with the tape, which can easily cause the tape to be scratched or damaged.
[0025] The embodiments of the present solution have been described in detail above with reference to the accompanying drawings. However, the present solution is not limited to the above embodiments, and various changes can be made without departing from the gist of the present patent within the scope of knowledge possessed by those of ordinary skill in the art.
Claims
1. A passive self-heating deicing driven roller, characterized in that include: A cylinder, a roller shaft, a bearing group, a positive magnet, a negative magnet, a coil, and a resistance wire. The bearing group is arranged at the two ends of the roller shaft, the inner ring of the bearing is connected to the roller shaft, and the outer ring is connected to the inside of the cylinder to realize the rotation of the cylinder relative to the roller shaft. The positive magnet and the negative magnet are arranged on the inner wall of the cylinder, and the positive magnet and the negative magnet are arranged opposite to each other. The coil is a closed loop and is arranged on the roller shaft between the positive magnet and the negative magnet. The resistance wire is connected to the coil, and the resistance wire forms a closed loop.
2. The passive self-heating deicing driven roller according to claim 1, characterized in that: The resistance wire is of two sections, and each section is connected in parallel with the coil.
3. The passive self-heating deicing driven roller according to claim 2, characterized in that: The coil is arranged as two coils, the two coils are arranged in parallel, the resistance wires at both ends are respectively connected in parallel with the two coils, and the two coils are both connected to the roller shaft.
4. The passive self-heating deicing driven roller according to claim 3, characterized in that: An insulating layer is also provided where the coil is connected to the roller shaft.
5. The passive self-heating deicing driven roller according to claim 4, characterized in that: A buckle is also arranged inside the cylinder, which is fixed on the inside of the cylinder, and the positive pole magnet and the negative pole magnet are clamped in between the buckles.