Drying machine bearing protection structure
By designing a first mounting ring and a second mounting ring to match in the dryer bearing, along with the ball bearing and sealing components, and combining a PTFE coating and a hardened coating, the problem of insufficient sealing of the dryer bearing in harsh environments is solved, thus preventing contaminant intrusion, extending bearing life, and ensuring stable operation.
Patent Information
- Application Number
- CN202520150551.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-01-22
AI Technical Summary
Dryer bearings are susceptible to dust, moisture and impurities in harsh environments, which can lead to increased friction, accelerated wear and shorten service life.
The design incorporates a first mounting ring and a second mounting ring, along with ball bearings and a sealing assembly, combined with a PTFE coating and a hardened coating to form a sealed structure that prevents contaminants from entering.
It effectively prevents dust, moisture and impurities from entering, reduces friction, extends bearing life, ensures long-term stable operation, and reduces the risk of failure.
Smart Images
Figure CN223578526U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bearing protection structure technology, specifically a bearing protection structure for a dryer. Background Technology
[0002] Bearings in drying machines are key components, primarily used to support and secure the rotating shaft, ensuring its stability and precision during high-speed rotation. Dryers are commonly used in industrial production to dry various materials, such as chemicals, food, and pharmaceuticals, by removing moisture or other solvents through heating and ventilation. The working environment of drying machine bearings is often harsh, potentially facing challenges such as high temperature, high humidity, corrosive gases, or particulate matter. Therefore, drying machine bearings need to possess high wear resistance, high temperature resistance, corrosion resistance, and good lubrication performance. Commonly used materials for drying machine bearings include stainless steel and high-temperature alloys, capable of adapting to complex working environments. Furthermore, drying machine bearings also require good sealing performance to prevent dust, moisture, or other impurities from entering the bearing and affecting its normal operation. To ensure the long-term stable operation of the drying machine, the design and selection of bearings must be optimized based on specific working conditions and load requirements. In short, drying machine bearings play a crucial role in the operation of the drying machine, and their performance directly affects the efficiency and lifespan of the equipment. Therefore, selecting the appropriate bearing type and performing regular maintenance and inspection are key to ensuring the normal operation of the drying machine.
[0003] Currently, the bearing sealing system is crucial to preventing the ingress of dust, moisture, and other impurities. If the bearing seals are aged, damaged, or poorly designed, dust and impurities can easily enter the bearing. Once inside, dust and other particles create additional friction between the rolling elements (such as balls or rollers) and raceways, increasing wear rates. Long-term accumulation can lead to surface damage and shorten the bearing's lifespan. Therefore, this design no longer meets current requirements. To address this, we propose a protective structure for the bearings of a drying machine. Utility Model Content
[0004] This invention provides a protective structure for a dryer bearing, which effectively prevents contaminants from entering the bearing, avoiding malfunctions and safety hazards caused by impurities. It addresses the issue mentioned in the background section where the bearing sealing system is crucial for preventing the entry of dust, moisture, and other impurities. If the bearing seals are aged, damaged, or poorly designed, dust and impurities can easily enter the bearing. Once inside, dust and other particles generate additional friction between the rolling elements (such as balls or rollers) and raceways, increasing wear rate. Long-term accumulation leads to surface damage and shortens the bearing's lifespan.
[0005] This utility model provides the following technical solution: a bearing protection structure for a dryer, including a first mounting ring, a second mounting ring disposed inside the first mounting ring, a ball bearing disposed between the first mounting ring and the second mounting ring, and a sealing component disposed on the side of the first mounting ring, the sealing component being used in conjunction with the second mounting ring.
[0006] As an optional solution for the bearing protection structure of the dryer described in this utility model, the outer side of the first mounting ring is provided with a polytetrafluoroethylene coating.
[0007] As an optional solution for the bearing protection structure of the dryer described in this utility model, a hardened coating is provided on the outer side of the second mounting ring.
[0008] As an optional solution for the bearing protection structure of the dryer described in this utility model, the first mounting ring is connected to a protective plate on its side, the protective plate has a first mounting groove on its side, and the sealing component is installed inside the first mounting groove.
[0009] As an optional solution for the bearing protection structure of the dryer described in this utility model, the second mounting ring has a second mounting groove on its side, and the second mounting groove is configured as a sliding groove.
[0010] As an optional solution for the bearing protection structure of the dryer described in this utility model, the sealing assembly includes a fixing rod and a piston disc, the fixing rod is connected inside the first mounting groove, and the piston disc is connected to the side of the fixing rod.
[0011] As an optional solution for the bearing protection structure of the dryer described in this utility model, the piston disc is slidably engaged with the second mounting groove.
[0012] As an optional solution for the bearing protection structure of the dryer described in this utility model, the second mounting groove is provided with a plurality of rotating shafts, and rotating balls are sleeved on the outside of the rotating shafts. The piston disc is used in conjunction with the rotating balls.
[0013] This utility model has the following beneficial effects:
[0014] 1. The bearing protection structure of this dryer, through the setting of the sealing components, ensures that during use, the first and second mounting rings engage with each other via ball bearings. While the piston disc slides within the second mounting groove, it also contacts and engages with the rotating balls. This sealing mechanism prevents contaminants from entering the bearing, avoiding malfunctions and safety hazards caused by impurities. Due to the stability of the sealing and lubrication, the bearing can achieve long-term stable operation, reducing safety risks caused by malfunctions. This addresses the crucial role of the bearing's sealing system in preventing the entry of dust, moisture, and other impurities. If the bearing seals age, are damaged, or are poorly designed, dust and impurities can easily enter the bearing. Once inside, dust and other particles generate additional friction between the rolling elements (such as balls or rollers) and the raceways, increasing the wear rate. Long-term accumulation can lead to surface damage and shorten the bearing's service life.
[0015] 2. The bearing protection structure of this dryer incorporates a polytetrafluoroethylene (PTFE) coating. The first mounting ring of the PTFE coating mates with the second mounting ring of the hardened coating. The PTFE coating provides a smooth and uniform surface, forming a tight fit with the second mounting ring of the hardened coating, effectively preventing dust, moisture, and other impurities from entering the bearing. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the structure of this utility model.
[0018] Figure 3 This is a schematic diagram of the structure of this utility model.
[0019] Figure 4 This is a schematic diagram of the structure of this utility model.
[0020] In the figure: 110, first mounting ring; 120, second mounting ring; 130, ball bearing; 133, rotating shaft; 134, rotating ball bearing; 140, sealing assembly; 141, fixing rod; 142, piston disc; 150, polytetrafluoroethylene coating; 151, hardened coating; 152, protective plate; 153, first mounting groove; 154, second mounting groove. Detailed Implementation
[0021] 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.
[0022] Example 1: This example aims to address the crucial role of the bearing sealing system in preventing the ingress of dust, moisture, and other impurities. If the bearing seals are aged, damaged, or poorly designed, dust and impurities can easily enter the bearing. Once inside, dust and other particles create additional friction between the rolling elements (such as balls 130) or between the rollers and raceways, increasing wear rate. Long-term accumulation can lead to surface damage and shorten the bearing's lifespan. Please refer to [link to relevant documentation]. Figure 1-4 A bearing protection structure for a dryer includes a first mounting ring 110, a second mounting ring 120 disposed inside the first mounting ring 110, a ball bearing 130 disposed between the first mounting ring 110 and the second mounting ring 120, and a sealing assembly 140 disposed on the side of the first mounting ring 110, the sealing assembly 140 cooperating with the second mounting ring 120.
[0023] A protective plate 152 is connected to the side of the first mounting ring 110. A first mounting groove 153 is formed on the side of the protective plate 152, and the sealing assembly 140 is installed inside the first mounting groove 153. A second mounting groove 154 is formed on the side of the second mounting ring 120, and the second mounting groove 154 is configured as a sliding groove.
[0024] The sealing assembly 140 includes a fixing rod 141 and a piston disc 142. The fixing rod 141 is connected inside the first mounting groove 153, and the piston disc 142 is connected to the side of the fixing rod 141. The piston disc 142 is slidably engaged with the second mounting groove 154. The second mounting groove 154 has a plurality of rotating shafts 133 inside, and rotating balls 134 are sleeved on the outside of the rotating shafts 133. The piston disc 142 cooperates with the rotating balls 134.
[0025] In this embodiment: With the sealing assembly 140, during use, the first mounting ring 110 and the second mounting ring 120 engage with the balls 130. While the piston disc 142 slides inside the second mounting groove 154, it also contacts and engages with the rotating balls 134. This sealing mechanism prevents contaminants from entering the bearing, avoiding malfunctions and safety hazards caused by impurities. Due to the stability of the sealing and lubrication, the bearing can achieve long-term stable operation, reducing safety risks caused by malfunctions and solving the problem that the bearing's sealing system is crucial for preventing the entry of dust, moisture, and other impurities. If the bearing seals age, are damaged, or are poorly designed, dust and impurities can easily enter the bearing. Once inside, dust and other particles generate additional friction between the rolling elements such as the balls 130 or between the rollers and raceways, increasing the wear rate. Long-term accumulation can lead to surface damage and shorten the bearing's service life.
[0026] Example 2 aims to address the issue of poor sealing caused by bearing material. This example is an improvement upon Example 1. For details, please refer to [link / reference]. Figure 1-4 The outer side of the first mounting ring 110 is provided with a polytetrafluoroethylene coating 150. The outer side of the second mounting ring 120 is provided with a hardened coating 151.
[0027] Polytetrafluoroethylene (PTFE) has a very low coefficient of friction, approximately between 0.05 and 0.1, which provides excellent lubrication between sliding surfaces, reducing friction and wear. PTFE is resistant to most chemicals, meaning it is not easily affected by corrosion or chemical reactions, thus maintaining its performance stability. PTFE can be used over a wide temperature range, from low temperatures to up to 260°C, making it suitable for operation in various environmental conditions. PTFE's self-lubricating properties reduce the need for additional lubricants, thereby simplifying maintenance and lowering operating costs.
[0028] Hardened coatings 151 are typically applied to increase the hardness of the material through heat treatment or other surface treatment techniques, thereby enhancing its wear resistance and scratch resistance. By increasing surface hardness, hardened coatings 151 can resist wear and corrosion, thus extending the service life of the bearing. Some hardened coatings 151 can also provide additional corrosion protection, further improving the performance of the bearing in harsh environments.
[0029] In this embodiment, the polytetrafluoroethylene (PTFE) coating 150 is provided, and the first mounting ring 110 of the PTFE coating 150 cooperates with the second mounting ring 120 of the hardened coating 151. The PTFE coating 150 can provide a smooth and uniform surface, forming a tight fit with the second mounting ring 120 of the hardened coating 151, effectively preventing dust, moisture and other impurities from entering the bearing.
[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A bearing protection structure for a drying machine, comprising a first mounting ring (110), characterized in that: The first mounting ring (110) has a second mounting ring (120) inside it. A ball bearing (130) is provided between the first mounting ring (110) and the second mounting ring (120). A sealing component (140) is provided on the side of the first mounting ring (110). The sealing component (140) works in conjunction with the second mounting ring (120).
2. The bearing protection structure for a drying machine according to claim 1, characterized in that: The first mounting ring (110) has a polytetrafluoroethylene coating (150) on its outer side.
3. The bearing protection structure for a drying machine according to claim 1, characterized in that: The second mounting ring (120) has a hardened coating (151) on its outer side.
4. The bearing protection structure for a drying machine according to claim 1, characterized in that: The first mounting ring (110) is connected to a guard plate (152) on its side. The guard plate (152) has a first mounting groove (153) on its side. The sealing component (140) is installed inside the first mounting groove (153).
5. The bearing protection structure for a drying machine according to claim 4, characterized in that: The second mounting ring (120) has a second mounting groove (154) on its side, and the second mounting groove (154) is configured as a sliding groove.
6. The bearing protection structure for a drying machine according to claim 5, characterized in that: The sealing assembly (140) includes a fixing rod (141) and a piston disc (142), the fixing rod (141) being connected inside the first mounting groove (153) and the piston disc (142) being connected to the side of the fixing rod (141).
7. The bearing protection structure for a drying machine according to claim 6, characterized in that: The piston disc (142) is slidably engaged with the second mounting groove (154).
8. The bearing protection structure for a drying machine according to claim 7, characterized in that: The second mounting groove (154) is provided with a number of rotating shafts (133), and rotating beads (134) are sleeved on the outside of the rotating shafts (133). The piston disc (142) is used in conjunction with the rotating beads (134).