Rotary kiln wheel belt deformation compensation type structure
By introducing a honeycomb buffer layer and fixing components into the rotary kiln, the problem of tire deformation due to thermal stress was solved, achieving heat buffering and stable operation, extending equipment life and simplifying maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG YUELONG ENVIRONMENTAL PROTECTION EQUIP CO LTD
- Filing Date
- 2025-06-21
- Publication Date
- 2026-06-02
AI Technical Summary
The existing rotary kiln tire is prone to deformation under high temperature conditions due to uneven thermal stress distribution, resulting in poor fit with the idler rollers and affecting the stable operation of the equipment.
A transition cylinder with a honeycomb buffer layer is added between the cylinder body and the tire. The pad is stabilized by the first and second fixing components to evenly distribute thermal stress and gravity, reduce heat transfer, and the honeycomb buffer layer is made of heat-resistant alloy material to reduce the heat conduction speed.
It significantly improves thermal buffering performance, reduces tire deformation, reduces equipment running vibration, extends equipment life, and improves maintenance convenience.
Smart Images
Figure CN224316748U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rotary kiln technology, and in particular to a rotary kiln tire deformation compensation structure. Background Technology
[0002] Rotary kilns are core equipment in industries such as cement, metallurgy, and building materials, and the tire plays a crucial role in them. The tire not only bears the entire weight of the rotary kiln shell, but also ensures the stable operation of the shell on the support rollers.
[0003] However, in actual production, the temperature inside the kiln can reach over 1000℃. The temperature of the cylinder and the tire rises sharply due to heat conduction. The uneven distribution of thermal stress caused by the temperature difference makes the tire very prone to deformation. After the tire is deformed, the tire and the idler roller do not fit well, causing the equipment to bounce during operation. In the existing compensation structure, the heat of the cylinder is directly transferred to the tire, accelerating the tire deformation.
[0004] In summary, existing compensation structures suffer from insufficient thermal buffering capacity. Therefore, we propose a rotary kiln tire deformation compensation structure to address the aforementioned issues. Utility Model Content
[0005] The purpose of this invention is to provide a rotary kiln belt deformation compensation structure. By using this device, the existing problems in the background art mentioned above can be solved.
[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows: a rotary kiln tire deformation compensation structure, comprising a cylinder, wherein a plurality of evenly distributed bottom plates are radially fixedly connected to the surface of the cylinder, a transition cylinder is sleeved on the outer side of the plurality of bottom plates, a first pad is filled between the transition cylinder and each bottom plate, a first fixing component for limiting the first pad is provided between the transition cylinder and each bottom plate, a tire is sleeved on the outer side of the transition cylinder, a plurality of second pads are filled between the tire and the transition cylinder, and a second fixing component for limiting each second pad is provided between the tire and the transition cylinder.
[0007] Preferably, the transition cylinder includes an inner cylinder, an outer cylinder is sleeved on the outside of the inner cylinder, and a honeycomb-shaped buffer layer is provided between the inner cylinder and the outer cylinder.
[0008] Preferably, the first fixing component includes two first blocks, which are fixedly connected between the inner cylinder and the first pad. Each first block has a slot at its bottom near the inner cylinder. The first pad has plugs at both ends, which are inserted into the slots. One of the first blocks has a first limiting rib fixedly connected to the side away from the inner cylinder, and the first limiting rib is fixedly connected to the bottom plate.
[0009] Preferably, the first limiting ribs in each of two adjacent sets of the first fixing components are fixedly connected to the first stop blocks on different sides.
[0010] Preferably, the second fixing component includes a limiting groove, which is formed inside the tire. The second pad is slidably connected to the limiting groove. One end of the second pad contacts a second stop block, and the other end contacts a pressure plate. The pressure plate is fixedly connected between the tire and the outer cylinder. The second stop block is fixedly connected between the tire and the outer cylinder. A second limiting rib is fixedly connected to the side of the second stop block away from the tire. The second limiting rib is fixedly connected to the outer cylinder.
[0011] Preferably, the pressure plate and the second stop block in each pair of adjacent sets of the second fixing components are alternately distributed along the circumferential direction of the tire.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] Improved thermal buffering performance: By adding a transition cylinder with a honeycomb buffer layer between the cylinder and the tire, the honeycomb structure reduces the heat conduction speed from the inner cylinder to the outer cylinder, reduces the heat transfer from the cylinder to the tire, and effectively prevents the tire from deforming due to excessive thermal stress. Compared with the traditional structure, the thermal buffering performance is significantly improved, reducing the phenomenon of poor fit between the tire and the idler roller, reducing the vibration amplitude during equipment operation, ensuring stable operation of the rotary kiln, and extending the service life of the equipment.
[0014] Easier maintenance: The first and second fixing components ensure that the first and second pads are securely installed and evenly distribute the weight and thermal stress of the cylinder, preventing local stress concentration. When the first and second pads are to be replaced, only specific parts need to be cut off and removed for replacement, reducing maintenance time and cost and improving the maintainability of the equipment. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram showing the positional relationship between the tire and the second pad in this utility model;
[0017] Figure 3 This is a schematic diagram of the structure of the first pad in this utility model;
[0018] Figure 4 This is a schematic diagram of the structure of the first stop block in this utility model.
[0019] In the diagram: 1. Cylinder body; 2. First pad plate; 21. Plug; 3. Transition cylinder; 31. Inner cylinder; 32. Outer cylinder; 33. Buffer layer; 4. First fixing component; 41. First stop block; 42. First limiting rib; 43. Slot; 5. Tire; 6. Second pad plate; 7. Second fixing component; 71. Limiting groove; 72. Second stop block; 73. Pressure plate; 74. Second limiting rib; 8. Base plate. 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 further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.
[0022] Combination Figures 1-4 A rotary kiln tire deformation compensation structure includes a cylinder 1. Multiple evenly distributed bottom plates 8 are radially fixedly connected to the surface of the cylinder 1. A transition cylinder 3 is sleeved on the outer side of each bottom plate 8. A first pad 2 is filled between the transition cylinder 3 and each bottom plate 8. The first pad 2 buffers the force between the transition cylinder 3 and the bottom plate 8 and allows for fine-tuning of the installation gap. A first fixing component 4 is provided between the transition cylinder 3 and each bottom plate 8 to limit the displacement of the first pad 2 and to achieve a transmission connection between the transition cylinder 3 and the bottom plate 8. A tire 5 is sleeved on the outer side of the transition cylinder 3. Multiple second pads 6 are filled between the tire 5 and the transition cylinder 3. The second pads 6 disperse the pressure between the tire 5 and the transition cylinder 3 and accommodate minor deformations during operation. A second fixing component 7 is provided between the tire 5 and the transition cylinder 3 to limit the displacement of each second pad 6 and to achieve a transmission connection between the transition cylinder 3 and the tire 5.
[0023] Furthermore, the transition cylinder 3 includes an inner cylinder 31, with an outer cylinder 32 sleeved on the outside of the inner cylinder 31. A honeycomb-shaped buffer layer 33 is provided between the inner cylinder 31 and the outer cylinder 32. The inner cylinder 31 is in direct contact with the first pad 2, receiving heat and pressure from the cylinder 1. The outer cylinder 32 interacts directly with the tire 5, transmitting the buffered force to the tire 5. The honeycomb-shaped buffer layer 33 is made of a material with a certain degree of elasticity, such as a heat-resistant alloy. The honeycomb structure contains a large amount of air. As a poor conductor of heat, air reduces the heat conduction speed from the inner cylinder 31 to the outer cylinder 32, reduces the heat transfer from the cylinder 1 to the tire 5, and alleviates the deformation of the tire caused by thermal stress. The honeycomb-shaped buffer layer 33, with its own elasticity, can absorb some mechanical vibration and thermal stress, improving the stability of the entire structure.
[0024] Furthermore, the first fixing component 4 includes two first blocks 41, which are fixedly connected between the inner cylinder 31 and the first pad 2. Each first block 41 has a slot 43 at its bottom near the inner cylinder 31. The first pad 2 has plugs 21 at both ends, which are inserted into the slots 43 to effectively limit the axial and radial displacement of the first pad 2. One of the first blocks 41 is fixedly connected to a first limiting rib 42 on the side away from the inner cylinder 31. The first limiting rib 42 is fixedly connected to the bottom plate 8 to further prevent the first pad 2 from circumferentially displacing.
[0025] Furthermore, the first limiting rib 42 in each of the two adjacent sets of first fixing components 4 is fixedly connected to the first stop block 41 on different sides, so as to avoid deformation of the transition cylinder 3 or other components due to excessive force on one side, and improve the load-bearing capacity and stability of the entire structure.
[0026] Furthermore, the second fixing component 7 includes a limiting groove 71, which is formed inside the tire 5. The second pad 6 is slidably connected to the limiting groove 71 to prevent the second pad from displacing radially 6. One end of the second pad 6 contacts a second stop 72, and the other end contacts a pressure plate 73. The pressure plate 73 is fixedly connected between the tire 5 and the outer cylinder 32. The second stop 72 is fixedly connected between the tire 5 and the outer cylinder 32. The pressure plate 73 and the second stop 72 cooperate with each other to prevent the second pad from displacing axially 6. A second limiting rib 74 is fixedly connected to the side of the second stop 72 away from the tire 5. The second limiting rib 74 is fixedly connected to the outer cylinder 32 to further prevent the second stop 72 from displacing and ensure the stability of the second fixing component 7, thereby enabling the second pad 6 to stably support the tire 5.
[0027] Furthermore, in each pair of adjacent sets of second fixed components, the pressure plate 73 and the second stop block 72 are alternately distributed along the circumference of the tire 5 to ensure that the tire 5 is subjected to uniform force in the circumferential direction, avoid deformation of the tire 5 due to uneven local force, and ensure the stability of the rotary kiln operation.
[0028] Working principle:
[0029] During rotary kiln operation, the high temperature of over 1000℃ inside the kiln causes the temperature of the cylinder 1 to rise sharply. Since the cylinder 1 is connected to the transition cylinder 3 through the bottom plate 8, heat will be conducted to the transition cylinder 3. Due to the honeycomb structure of the honeycomb buffer layer 33, the heat conduction speed from the inner cylinder 31 to the outer cylinder 32 is reduced, and the heat transfer from the cylinder 1 to the tire 5 is reduced. At the same time, the honeycomb wall can absorb some thermal stress through elastic deformation, avoiding tire deformation due to excessive thermal stress, thereby reducing the risk of poor fit between the tire and the idler roller and reducing the jumping phenomenon during equipment operation.
[0030] The cylinder 1 is connected to the base plate 8 and the transition cylinder 3. A first pad 2 is provided between the base plate 8 and the inner cylinder 31 of the transition cylinder 3. The first pad 2 is limited by the first fixing component 4. The plugs 21 at both ends of the first pad 2 are inserted into the slots 43 at the bottom of the first stop block 41. The first stop block 41 is fixed to the base plate 8 by the first limiting rib 42. The first limiting ribs 42 of the two adjacent sets of first fixing components 4 are fixed to the first stop blocks 41 on different sides, which not only makes the first pad 2 firmly installed, but also evenly disperses the gravity and thermal stress transmitted by the cylinder 1 and prevents local stress concentration. When replacing the first pad 2, the first stop block 41 that is not fixed to the first limiting rib 42 needs to be cut off, and then the first pad 2 can be pulled out for replacement.
[0031] A limiting groove 71 is provided on the inner side of the tire 5. The second pad 6 can slide in the limiting groove 71 and is limited by the second fixing component 7. One end of the second pad 6 contacts the second stop 72 and the other end contacts the pressure plate 73. The second stop 72 and the pressure plate 73 are respectively fixed between the tire 5 and the outer cylinder 32. The second stop 72 is more stably connected to the outer cylinder 32 through the second limiting rib 74, which not only ensures that the second pad 6 stably supports the tire 5, but also adapts to the small displacement and deformation of the tire during operation. The pressure plates 73 and the second stops 72 of the two adjacent sets of second fixing components 7 are alternately distributed along the circumference of the tire 5 to ensure that the tire 5 is subjected to uniform force. When replacing the second pad 6, the pressure plate 73 needs to be cut off, and then the second pad 6 can be pulled out for replacement.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A rotary kiln tire deformation compensation structure, comprising a cylinder (1), wherein a plurality of evenly distributed bottom plates (8) are radially fixedly connected to the surface of the cylinder (1), characterized in that: A transition cylinder (3) is fitted on the outer side of a plurality of base plates (8). A first pad (2) is filled between the transition cylinder (3) and each base plate (8). A first fixing component (4) for limiting the first pad (2) is provided between the transition cylinder (3) and each base plate (8). A tire (5) is fitted on the outer side of the transition cylinder (3). A plurality of second pads (6) are filled between the tire (5) and the transition cylinder (3). A second fixing component (7) for limiting each second pad (6) is provided between the tire (5) and the transition cylinder (3).
2. The rotary kiln tire deformation compensation structure according to claim 1, characterized in that: The transition cylinder (3) includes an inner cylinder (31), an outer cylinder (32) is sleeved on the outside of the inner cylinder (31), and a honeycomb-shaped buffer layer (33) is provided between the inner cylinder (31) and the outer cylinder (32).
3. The rotary kiln tire deformation compensation structure according to claim 2, characterized in that: The first fixing component (4) includes two first blocks (41), which are fixedly connected between the inner cylinder (31) and the first pad (2). Each first block (41) has a slot (43) at the bottom of the side near the inner cylinder (31). The first pad (2) has a plug (21) at both ends, which is inserted into the slot (43). One of the first blocks (41) has a first limiting rib (42) fixedly connected to the side away from the inner cylinder (31), which is fixedly connected to the bottom plate (8).
4. The rotary kiln tire deformation compensation structure according to claim 3, characterized in that: The first limiting rib (42) in each of the two adjacent sets of the first fixing components (4) is fixedly connected to the first stop block (41) on different sides.
5. The rotary kiln tire deformation compensation structure according to claim 2, characterized in that: The second fixing component (7) includes a limiting groove (71) which is opened inside the tire (5). The second pad (6) is slidably connected to the limiting groove (71). One end of the second pad (6) contacts a second stop (72) and the other end contacts a pressure plate (73). The pressure plate (73) is fixedly connected between the tire (5) and the outer cylinder (32). The second stop (72) is fixedly connected between the tire (5) and the outer cylinder (32). The side of the second stop (72) away from the tire (5) is fixedly connected to a second limiting rib (74). The second limiting rib (74) is fixedly connected to the outer cylinder (32).
6. The rotary kiln tire deformation compensation structure according to claim 5, characterized in that: The pressure plate (73) and the second stop (72) in each pair of adjacent sets of the second fixing components (7) are alternately distributed along the circumferential direction of the tire (5).