一种空气弹簧囊皮及空气弹簧总成
By incorporating reinforcing fiber cord layers and cord layers with different arrangements within the air spring bladder, the high strength requirements of the air spring under large turning and swing angle conditions are met, thereby improving service life and comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI LONGWEI AUTO PARTS CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-07-17
AI Technical Summary
The existing double-layer reinforced fiber structure of airbags cannot meet the high strength requirements of the clamping assembly part of the air spring under large turning angle and swing angle conditions.
Design an air spring bladder skin, including a rubber layer and a reinforcing fiber layer. The reinforcing fiber layer is composed of reinforcing fiber cord layers and reinforcing fiber cord layers with different arrangements. Multiple reinforcing fiber sections are set in the circumferential segment of the bladder skin. The cord layers are arranged in I-type and X-type cross arrangement, covering the key assembly area of the bladder skin and the air spring assembly.
It meets the high strength requirements of the snap-fit assembly, improves the service life of the air spring, and enhances the mechanical strength and comfort of the bladder by decoupling the vibration damper oscillation.
Smart Images
Figure CN224515773U_ABST
Abstract
Claims
1. An air spring bladder, comprising a rubber layer and a reinforcing fiber layer located within the rubber layer, the reinforcing fiber layer comprising a first reinforcing fiber cord layer and a second reinforcing fiber cord layer with different cord arrangement patterns, characterized in that, The outer periphery of the capsule is provided with multiple reinforcing fiber sections for assembly along its axis. The reinforcing fiber sections include reinforcing fiber cord layer one, reinforcing fiber cord layer two, or partially overlapping reinforcing fiber cord layer one and reinforcing fiber cord layer two.
2. An air spring bladder as in claim 1, wherein, The reinforcing fiber cord layer includes multiple cords arranged and spaced apart along the circumference of the skin. The projection line of the cords on the plane passing through the axial axis of the skin is I-shaped.
3. An air spring bladder as in claims 1 or 2, wherein, The second layer of reinforced fiber cord includes multiple inclined cords, and the projection lines of two cords on the plane passing through the axial axis of the skin form an X-shaped intersection.
4. An air spring bladder as defined in claim 1, wherein, The reinforcing fiber section includes a reinforcing fiber section one, which includes a reinforcing fiber cord layer one. The length of the reinforcing fiber cord layer one is sufficient to cover the assembly and fastening area between the top of the bladder and the pressure ring one of the air spring assembly.
5. An air spring bladder as defined in claim 1, wherein, The reinforcing fiber section includes a second reinforcing fiber section, which includes a partially overlapping first reinforcing fiber cord layer and a second reinforcing fiber cord layer. The length of the second reinforcing fiber section is sufficient to completely cover the assembly area of the bladder and the air spring assembly's support ring and the aluminum cylinder of the air spring assembly.
6. An air spring bladder as defined in claim 1, wherein, The reinforcing fiber section includes a third reinforcing fiber section, which in turn includes a second reinforcing fiber cord layer. The length of the third reinforcing fiber section is sufficient to cover the assembly area of the bottom of the bladder and the undulating piston of the air spring assembly.
7. An air spring bladder as defined in claim 1 wherein, The rubber layer consists of an inner rubber layer and an outer rubber layer, with a reinforcing fiber layer located between the inner and outer rubber layers.
8. An air spring bladder as defined in claim 1, wherein, The reinforcing fiber section includes reinforcing fiber section one and reinforcing fiber section three. Reinforcing fiber section one includes reinforcing fiber cord layer two, and reinforcing fiber section three includes reinforcing fiber cord layer one.
9. An air spring assembly characterized by, Includes an air spring bladder, a top cover, a first pressure ring, a support ring, an aluminum cylinder, a second pressure ring, an undulating piston, and a shock absorber as described in any one of claims 1-8. The shock absorber is fixedly connected to or clearance-fitted with the undulating piston. The piston rod of the shock absorber is fixedly connected to the top cover. A gap is left between the bottom plane of the first pressure ring and the top plane of the aluminum cylinder. The air bladder bulges out from the gap and forms a bulge. Multiple reinforcing fiber parts are respectively located in the assembly and installation area of the bladder and the air spring assembly.
10. An air spring assembly according to claim 9, wherein, The reinforcing fiber section includes reinforcing fiber section one, reinforcing fiber section two, and reinforcing fiber section three. The top cover is fixed to reinforcing fiber section one by pressing ring one. Reinforcing fiber section two of the bladder skin is located between the support ring and the aluminum cylinder. Reinforcing fiber section three of the bladder skin is fixedly connected to the undulating piston by pressing ring two.