Wear-resistant floating sealing structure for thrust wheel
By introducing the design of guide rollers and clamping grooves into the floating seal structure of the supporting wheel, the problems of poor wear resistance of the floating oil seal and poor fixing stability of the rubber ring are solved, and a longer service life and a more stable sealing effect are achieved.
Patent Information
- Application Number
- CN202422389435.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-30
AI Technical Summary
In practical applications, the existing floating seal structures for supporting wheels have problems such as poor wear resistance, reduced sealing and poor fixing stability of the rubber ring.
An wear-resistant floating seal structure including a load bearing member, a first seal member and a second seal member is designed. The sliding roller guides the floating ring body to reduce contact wear between the inner side of the floating ring body and the supporting wheel shaft, and fixes the sealing ring through the structure of the snap ring and the slot to improve the firmness of the connection.
It effectively reduces the wear of the floating seal structure, maintains the sealing effect, improves service life, and enhances the stability of the structure.
Smart Images
Figure CN223001610U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of idler wheels, in particular to a wear-resistant floating seal structure for an idler wheel. Background Technique
[0002] The idler wheel is used to support the weight of the tractor, and at the same time rolls on the guide rail or the tread surface of the crawler belt. It is also used to limit the crawler belt to prevent lateral slippage. When the tractor turns, the idler wheel forces the crawler belt to slip on the ground. The floating seal structure of the idler wheel is a high-performance seal structure that integrates floating ring seal, clearance seal and comb seal, and effectively prevents leakage by using the tension of the oil film. For example, a Chinese patent discloses a wear-resistant floating seal structure for an idler wheel;
[0003] However, when the existing disclosed floating seal structure for an idler wheel is actually applied, there are still some defects that need to be improved. For example:
[0004] First of all, the wear resistance of the corresponding surface between the floating oil seal and the idler wheel shaft rod is poor. The wear of the floating oil seal leads to a decrease in sealing performance, which is not conducive to the service life of the floating oil seal;
[0005] Secondly, the rubber ring outside the floating oil seal is fixed by elastic contraction, and the fixing stability is poor. There is a problem that the rubber ring detaches from the floating oil seal during the working process. Therefore, those skilled in the art provide a wear-resistant floating seal structure for an idler wheel to solve the problems raised in the above background technique. Content of the Utility Model
[0006] The purpose of the utility model is to provide a wear-resistant floating seal structure for an idler wheel to solve the problems raised in the above background technique.
[0007] To achieve the above purpose, the utility model provides the following technical solutions:
[0008] A wear-resistant floating seal structure for an idler wheel, including a bearing member, a first seal member and a second seal member. The first seal member is located at the front end position outside the bearing member, and the second seal member is located at the rear end position outside the bearing member;
[0009] The bearing member includes a floating ring body. A rotating groove is opened inside the floating ring body, a guide roller is arranged inside the rotating groove, and clamping grooves are opened at both ends of the outside of the floating ring body;
[0010] Both the first seal member and the second seal member include a snap ring, and a seal ring is arranged outside the snap ring.
[0011] As a further solution of the utility model: a rotating rod is arranged inside the guide roller, nail grooves are arranged at both sides of the floating ring body, positioning screws are arranged inside the nail grooves, a fixing block is arranged at the front side of the snap ring, and a fixing hole is formed at the front side of the fixing block.
[0012] As a further solution of the utility model: the snap ring is located inside the clamping groove, and the sealing ring is fixed to the outer side of the floating ring body through the snap ring and the clamping groove.
[0013] As a further solution of the utility model: the guide roller rotates inside the rotating groove, and the outer diameter of the guide roller is 0.3 cm.
[0014] As a further solution of the utility model: the outer end of the rotating rod rotates inside the rotating groove, and the guide roller rotates inside the rotating groove through the rotating rod.
[0015] As a further solution of the utility model: the positioning screw corresponds to the position of the fixing hole, and the rear end of the positioning screw rotates inside the fixing hole.
[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0017] 1. A wear-resistant floating seal structure for a carrier roller guides the floating ring body through a guide roller, avoiding excessive wear of the inner side of the floating ring body contacting the carrier roller shaft rod, reducing the wear of the corresponding surface between the inner side of the floating ring body and the carrier roller shaft rod, maintaining the sealing effect of the floating seal structure, and being beneficial to the service life of the floating seal structure;
[0018] 2. A wear-resistant floating seal structure for a carrier roller fixes the sealing ring to the outer side of the floating ring body through a snap ring and a clamping groove, improving the firmness of the connection and the working stability of the floating seal structure. Description of the Drawings
[0019] Figure 1 It is a structural schematic diagram of a wear-resistant floating seal structure for a carrier roller;
[0020] Figure 2 It is a structural schematic diagram of a load-bearing member in a wear-resistant floating seal structure for a carrier roller;
[0021] Figure 3 It is a structural schematic diagram of a first sealing member in a wear-resistant floating seal structure for a carrier roller;
[0022] Figure 4 It is a wear-resistant floating seal structure for a carrier roller Figure 2 The structural schematic diagram of part A therein;
[0023] Figure 5 It is an abrasion-resistant floating seal structure for a track roller. Figure 3 The structural schematic diagram of part B in it.
[0024] In the figure: 1. Bearing member; 2. First sealing member; 3. Second sealing member; 4. Floating ring body; 5. Rotating groove; 6. Guide roller; 7. Card slot; 8. Snap ring; 9. Sealing ring; 10. Rotating rod; 11. Nail slot; 12. Set screw; 13. Fixed block; 14. Fixed hole. Specific implementation manner
[0025] Please refer to Figures 1 to 5 , in the embodiment of the present utility model, an abrasion-resistant floating seal structure for a track roller includes a bearing member 1, a first sealing member 2 and a second sealing member 3. The first sealing member 2 is located at the outer front end position of the bearing member 1, and the second sealing member 3 is located at the outer rear end position of the bearing member 1. The bearing member 1 includes a floating ring body 4. A rotating groove 5 is opened inside the floating ring body 4, a guide roller 6 is arranged inside the rotating groove 5, card slots 7 are opened at both outer ends of the floating ring body 4. Both the first sealing member 2 and the second sealing member 3 include snap rings 8. A sealing ring 9 is arranged outside the snap ring 8. The snap ring 8 is located inside the card slot 7. The sealing ring 9 is fixed to the outside of the floating ring body 4 through the snap ring 8 and the card slot 7. The guide roller 6 rotates inside the rotating groove 5. The outer diameter of the guide roller 6 is 0.3 cm. First, snap the snap ring 8 into the inside of the card slot 7 and fix the snap ring 8 inside the card slot 7. Then, install an abrasion-resistant floating seal structure for a track roller into the inside of the track roller and start using it. During use, the bearing member 1 is fixed to the wheel body of the track roller through the first sealing member 2 and the second sealing member 3, and the guide roller 6 rotates inside the rotating groove 5 to guide and slide the bearing member 1.
[0026] In Figure 2 , 3, among 4 and 5: A rotating rod 10 is arranged inside the guiding roller 6. Nail grooves 11 are arranged at both sides of the floating ring body 4. A positioning screw 12 is arranged inside the nail groove 11. A fixing block 13 is arranged at the front side of the snap ring 8. A fixing hole 14 is opened at the front side of the fixing block 13. The outer end of the rotating rod 10 rotates inside the rotating groove 5. The guiding roller 6 rotates inside the rotating groove 5 through the rotating rod 10. The position of the positioning screw 12 corresponds to that of the fixing hole 14. The rear end of the positioning screw 12 rotates inside the fixing hole 14. The snap ring 8 is snapped into the inside of the clamping groove 7. The rear end of the positioning screw 12 is inserted into the inside of the fixing hole 14 to fix the snap ring 8 to the inside of the clamping groove 7. Then, a wear-resistant floating seal structure for a carrier wheel is installed inside the carrier wheel and starts to be used. During the use process, the load-bearing member 1 is fixed to the wheel body of the carrier wheel through the first sealing member 2 and the second sealing member 3. The guiding roller 6 guides and slides the load-bearing member 1 by rotating inside the rotating groove 5 through the rotating rod 10.
[0027] The working principle of the present utility model is: First, the snap ring 8 is snapped into the inside of the clamping groove 7. The rear end of the positioning screw 12 is inserted into the inside of the fixing hole 14 to fix the snap ring 8 to the inside of the clamping groove 7. Then, a wear-resistant floating seal structure for a carrier wheel is installed inside the carrier wheel and starts to be used. During the use process, the load-bearing member 1 is fixed to the wheel body of the carrier wheel through the first sealing member 2 and the second sealing member 3. The guiding roller 6 guides and slides the load-bearing member 1 by rotating inside the rotating groove 5 through the rotating rod 10.
[0028] The above-mentioned is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.
Claims
1. A wear-resistant floating seal structure for a track roller, characterized in that: The invention comprises a bearing member (1), a first sealing member (2) and a second sealing member (3), wherein the first sealing member (2) is located at the front end of the outer side of the bearing member (1), and the second sealing member (3) is located at the rear end of the outer side of the bearing member (1); The bearing member (1) comprises a floating ring body (4), a rotation groove (5) is provided on the inner side of the floating ring body (4), a guide roller (6) is provided on the inner side of the rotation groove (5), and clamping grooves (7) are provided at both ends of the outer side of the floating ring body (4); The first sealing component (2) and the second sealing component (3) both comprise a snap ring (8), and a sealing ring (9) is arranged on the outer side of the snap ring (8).
2. A wear-resistant floating seal structure for a track roller according to claim 1, characterized in that: A rotating rod (10) is arranged on the inner side of the guide roller (6), nail grooves (11) are arranged on both sides of the floating ring body (4), positioning screws (12) are arranged on the inner side of the nail grooves (11), a fixing block (13) is arranged on the front side of the clamping ring (8), and a fixing hole (14) is opened on the front side of the fixing block (13).
3. The wear-resistant floating seal structure for a track roller according to claim 1, characterized in that: The clamping ring (8) is located at an inner side of the clamping groove (7), and the sealing ring (9) is fixed to an outer side of the floating ring body (4) through the clamping ring (8) and the clamping groove (7).
4. The wear-resistant floating seal structure for a track roller according to claim 1, characterized in that: The guide roller (6) rotates at an inner position of the rotating groove (5), and the outer diameter of the guide roller (6) is 0.3 cm.
5. The wear-resistant floating seal structure for a track roller according to claim 2, characterized in that: The outer end of the rotating rod (10) rotates to the inner side of the rotating groove (5), and the guide roller (6) rotates to the inner side of the rotating groove (5) through the rotating rod (10).
6. The wear-resistant floating seal structure for a track roller according to claim 2, characterized in that: The positions of the positioning screw (12) and the fixing hole (14) correspond, and the rear end of the positioning screw (12) is rotated to an inner position of the fixing hole (14).