Hub cover with multiple sealing effects
The injection molded hub cap of high-performance reinforced nylon material combines the design of the tongue, edge seal and O-ring to form a three-layer seal structure, which solves the problem of unstable sealing of the existing hub cap and significantly improves the sealing effect. Prevent the leakage of mud and water and lubricating oil, protect the lubrication and normal operation of the axle wheel ends.
Patent Information
- Application Number
- CN202421245745.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-06-03
AI Technical Summary
The sealing effect of the existing hub cap is unstable, and leakage and water inlet are prone to occur, resulting in wear of bearings at the wheel ends of the axle.
The hub cap, which is injection molded with high-performance reinforced nylon material, includes a rotating tongue, edge seal and O-ring, forms a three-layer sealing structure, and is sealed at the thread engagement area and edges using sealing glue.
It achieves a more stable sealing effect, prevents mud and water from entering and leaking lubricating oil, and extends the service life of the rotating body in the hub.
Smart Images
Figure CN222291383U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wheel hub sealing, in particular to a wheel hub cover with multiple sealing effects. Background Art
[0002] With the increasing requirements for environmental protection, construction vehicles, especially those in urban engineering construction, must be cleaned in water troughs, causing the wheel ends of the axles to be immersed in muddy water. If the wheel ends are not well sealed, muddy water will enter the wheel hub, thereby destroying the internal lubrication and causing abnormal wear of the bearings.
[0003] The sealing of the wheel end of the axle mainly relies on the wheel cover, which is installed on the outer end face of the wheel hub and forms a closed cavity together with the wheel hub and the oil seal inside the wheel hub. The existing wheel cover is formed by stamping of metal sheets, and the connecting threads are rolled or machined, which has a complicated process. Moreover, when stamping thin-walled parts, the accuracy is difficult to guarantee and the consistency is poor due to the influence of material rolling deformation, mold accuracy and wear. The sealing mainly relies on the meshing of thread pairs + sealant. Affected by factors such as thread accuracy, heat resistance / sealing / locking performance of the rubber material, glue coating process, and operating vibration, the sealing effect is not stable enough, and the wheel cover often leaks and water ingress occurs. Utility Model Content
[0004] The utility model aims to provide a hub cover with multiple sealing effects in view of the deficiencies of the prior art. The hub cover is made of a new material and forms a multiple sealing structure during installation, which has a stable structure and good sealing.
[0005] The technical solution adopted by the utility model to solve the technical problem is: a wheel hub cover with multiple sealing effects, which is made of high-performance reinforced nylon by one-time injection molding, including a cover body, the edge of the cover body is provided with a rotating tongue connected to the internal thread of the wheel hub and an edge seal that abuts against the end face of the wheel hub, the threaded meshing portion of the rotating tongue and the wheel hub is evenly coated with a sealing locking glue, the rotating tongue and the edge seal form an L shape, and the rotating tongue and the edge seal are provided with O-rings that abut against the wheel hub and the wheel hub cover at the L-shaped corners.
[0006] Preferably, the cover body is circular, and at least two L-shaped structures are provided from the center to the edge to enhance the strength and rigidity of the cover body.
[0007] Preferably, the material used for the integrally injection-molded hub cover is PA6+30GF.
[0008] Preferably, there is also a sealing and locking glue between the edge seal and the end face of the hub.
[0009] The beneficial effects of the utility model are: a hub cover with multiple sealing effects, which is made of high-performance reinforced nylon by one-step injection molding, including a cover body, the edge of the cover body is provided with a rotating tongue connected to the inner thread of the wheel hub and an edge seal that contacts the end face of the wheel hub, the threaded meshing part of the rotating tongue and the wheel hub is evenly coated with a sealing and locking glue, the rotating tongue and the edge seal form an L shape, and the rotating tongue and the edge seal are provided with an O-ring that contacts the wheel hub and the hub cover at the L-shaped corner. The utility model adopts reinforced nylon material to injection mold the hub cover, and after being assembled with the wheel hub, a three-layer sealing structure is formed, thereby effectively preventing mud and water from entering and lubricating oil from leaking, thereby protecting the lubrication and normal operation of the internal rotating body. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a structural schematic diagram of a hub cover with multiple sealing effects of the utility model;
[0011] Figure 2 yes Figure 1 A partial enlarged view of .
[0012] Description of reference numerals:
[0013] 1——cover, 2——swing tongue, 3——edge sealing, 4——O-ring. DETAILED DESCRIPTION
[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the scope of implementation of the present invention is not limited thereto.
[0015] like Figure 1 , 2 As shown, a hub cover with multiple sealing effects in this embodiment is made of high-performance reinforced nylon by one-step injection molding, and includes a cover body 1. The edge of the cover body 1 is provided with a rotary tongue 2 connected to the internal thread of the wheel hub and an edge seal 3 that abuts against the end face of the wheel hub. The threaded meshing portion of the rotary tongue 2 and the wheel hub is evenly coated with a sealing locking glue. The rotary tongue 2 and the edge seal 3 form an L shape. The rotary tongue 2 and the edge seal 3 are provided with an O-ring 4 that abuts against the wheel hub and the hub cover at the L-shaped corner.
[0016] This embodiment has made great improvements to the existing wheel end seal structure, using high-performance reinforced nylon composite material PA6+30GF for one-time injection molding of the hub cover, with stable performance, precision guaranteed by the mold, and good consistency. The material is fully utilized for long-term temperature resistance of -40℃~160℃, and has excellent characteristics such as high strength, high and low temperature resistance, good chemical stability, wear resistance and dimensional stability, meeting the requirements of vehicle use conditions such as high and low temperature areas and wading, as well as impact resistance and disassembly performance.
[0017] During installation, a circle of sealing and locking glue is evenly applied to the threaded meshing part of the rotating tongue 2. The sealing and locking glue can not only lock the hub cover to prevent it from loosening due to vibration during operation, but also play a role in thread sealing. In this way, the first seal is formed after tightening the rotating tongue 2; the O-ring at the root of the hub cover is compressed and deformed, and it is tightly attached to the wheel hub and the hub cover to form the second seal; as the screwing deepens, the excess glue will naturally squeeze out between the fitting surface of the hub cover and the wheel hub, forming the third seal. The three seals are firmly fastened and well sealed, which can well prevent the intrusion of mud, water and foreign objects, and can also well prevent the leakage of lubricating oil, thereby protecting the lubrication effect in the wheel hub and preventing the wear of bearings and other structures.
[0018] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, and for the convenience of describing the technical solution, the front, rear, left, right, top, middle, and bottom directions adopted are based on the settings in the accompanying drawings, rather than limiting the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.
Claims
1. A hub cover with multiple sealing effects, characterized in that: It adopts high-performance reinforced nylon one-time injection molding, including a cover body, the edge of the cover body is provided with a rotary tongue connected to the internal thread of the wheel hub and an edge seal that contacts the end face of the wheel hub, the threaded meshing part of the rotary tongue and the wheel hub is evenly coated with a sealing locking glue, the rotary tongue and the edge seal form an L shape, and the rotary tongue and the edge seal are provided with O-rings that contact the wheel hub and the wheel cover at the L-shaped corners.
2. A hub cover with multiple sealing effects according to claim 1, characterized in that: The cover body is provided with at least two L-shaped structures from the center to the edge to enhance the strength and rigidity of the cover body.
3. The hub cover with multiple sealing effects according to claim 1, characterized in that: The material used for the integral injection-molded wheel hub cover is PA6+30GF.
4. The hub cover with multiple sealing effects according to claim 1, characterized in that: There is also sealing and locking glue between the edge sealing and the end face of the hub.