CN113883205B - Air spring air bag rubber material, manufacturing method and air spring - Google Patents
Air spring air bag rubber material, manufacturing method and air spring Download PDFInfo
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- CN113883205B CN113883205B CN202111113195.7A CN202111113195A CN113883205B CN 113883205 B CN113883205 B CN 113883205B CN 202111113195 A CN202111113195 A CN 202111113195A CN 113883205 B CN113883205 B CN 113883205B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
- F16F9/04—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall
- F16F9/0409—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall characterised by the wall structure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D22/00—Producing hollow articles
- B29D22/02—Inflatable articles
- B29D22/023—Air springs; Air bellows
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/10—Layered products comprising a layer of natural or synthetic rubber next to a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention provides an air spring airbag rubber material, a manufacturing method and an air spring, and relates to the technical field of automobile suspension, comprising the following steps: a rubber layer including an inner rubber layer and an outer rubber layer; the reinforced fiber layer is arranged between the inner rubber layer and the outer rubber layer and is divided into: a fiber parallel section formed at one end of the reinforcing fiber layer, the fibers in the fiber parallel section being arranged in the warp direction; the fiber inclined section is formed at the other end of the reinforced fiber layer, and the fibers in the fiber inclined section are obliquely arranged and form an included angle with the fibers in the fiber parallel section; and the fiber transition section is formed between the fiber parallel section and the fiber inclined section, and the fibers in the fiber transition section are smooth curves and are used for connecting the fibers in the fiber parallel section and the fiber inclined section. According to the invention, the fiber reinforcement layer in the rubber material is divided into the fiber parallel section, the fiber inclined section and the fiber transition section, so that the rubber material has better toughness and structural strength.
Description
Technical Field
The invention relates to the technical field of automobile suspension, in particular to an air bag rubber material of an air spring, a manufacturing method and the air spring.
Background
Modern vehicles are continuously developed in the directions of high speed, light weight and low noise, and requirements of people on riding comfort and running safety are also higher and higher, wherein the vehicle with the air suspension can simultaneously take account of smoothness, comfort, operation stability and safety, and is one of the development trends of the automobile suspension.
The air spring is a core component of the air suspension, and is an elastic element which uses the reaction force of compressed air in a rubber air bag as elastic restoring force, and has the advantages of variable stiffness, adjustable height, long service life and the like. In the continuous development of air springs, in the trend of light weight, intelligence and multifunction of vehicles, higher requirements are put on the air springs, for example: in a smaller installation space (especially for passenger vehicles), the air spring meets the requirement of dimensional stability, because the part of the air bag is partially exposed outside and has no constraint of an aluminum cylinder; and the reciprocating torsion around the axis of the vibration damper is satisfied, and the service life of the air bag is ensured. The prior air bag has a single-angle double-layer reinforced fiber line layer structure, which can not meet and solve the requirement, so the air bag has a part to be improved.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide an air bag rubber material for an air spring, a manufacturing method thereof, and an air spring, which are used for solving the problems that the air bag rubber material in the prior art cannot meet the structural strength of an air bag and has a service life.
To achieve the above and other related objects, the present invention provides an air bag rubber material of an air spring, comprising: a rubber layer including an inner rubber layer and an outer rubber layer; the reinforced fiber layer is arranged between the inner rubber layer and the outer rubber layer and is divided into: a fiber parallel section formed at one end of the reinforcing fiber layer, wherein the fibers in the fiber parallel section are arranged along the warp direction; the fiber inclined section is formed at the other end of the reinforced fiber layer, and the fibers in the fiber inclined section are obliquely arranged and form an included angle with the fibers in the fiber parallel section; and the fiber transition section is formed between the fiber parallel section and the fiber inclined section, and the fibers in the fiber transition section are smooth curves and are used for connecting the fibers in the fiber parallel section and the fiber inclined section.
In an embodiment of the present invention, an included angle formed by the fibers in the inclined fiber section and the fibers in the parallel fiber section is between 25 degrees and 60 degrees.
In one embodiment of the present invention, the reinforcing fiber layer includes: the inner reinforcing fiber layer is arranged at a position close to the inner rubber layer; the outer reinforcing fiber layer is arranged at a position close to the outer rubber layer; the curtain cloth glue layer is arranged between the inner reinforcing fiber layer and the outer reinforcing fiber layer; the inner reinforcing fiber layer and the outer reinforcing fiber layer are arranged in a mirror image mode along the cord fabric glue layer.
The invention also provides a manufacturing method, which is made of the air spring air bag rubber material and comprises the following steps: extruding fluid glue through a die opening of an extruder, placing the glue on a forming die, and then cooling to form an inner rubber layer; forming an inner reinforced fiber layer by arranging and covering a layer of reinforced fiber ropes forming a certain included angle on the surface of the inner rubber layer by a wire drawing and spinning method; covering a layer of curtain cloth glue on the surface of the inner reinforced fiber layer to form a curtain cloth glue layer; the method comprises the steps of repeatedly drawing and weaving on the surface of a cord fabric glue layer, and mirroring and covering a layer of reinforced fiber ropes forming a certain included angle, so as to form an outer reinforced fiber layer, wherein the angle of the reinforced fiber ropes is mirrored with the angle of the reinforced fiber ropes on the surface of an inner rubber layer; and covering the surface of the outer reinforcing fiber layer with a layer of glue solution to form an outer rubber layer.
The invention also provides an air spring, which comprises an air spring body and an air spring air bag arranged in the air spring body, wherein the air spring air bag is manufactured by the air bag manufacturing method.
In an embodiment of the present invention, the air spring body includes: the two ends of the aluminum cylinder are opened, and the caliber of one end is larger than that of the other end; the fluctuation piston coaxially penetrates through the aluminum cylinder and is detachably and fixedly connected with the aluminum cylinder; the support ring is coaxially fixed at one end of the aluminum cylinder with larger caliber; the upper cover is coaxially fixed on the supporting ring, and a gap is formed between the upper cover and the aluminum cylinder; and the shock absorber is coaxially fixed with the heave piston.
In an embodiment of the invention, two ends of the air spring air bag are fixedly connected with the upper cover and the aluminum cylinder respectively and are arranged at the inner side walls of the upper cover and the aluminum cylinder in a surrounding manner.
In one embodiment of the present invention, the fiber inclined section in the air spring bladder corresponds to a gap formed between the upper cover and the aluminum cylinder.
In an embodiment of the invention, a pressing ring is fixed at the connection position of the upper cover and the aluminum cylinder corresponding to the air spring air bag, and the air spring air bag is fixed through the pressing ring.
In one embodiment of the present invention, the air spring bladder located in the aluminum cylinder has a U-shaped cross section for filling the gap between the aluminum cylinder and the rolling piston.
As described above, the air bag rubber material of the air spring, the manufacturing method and the air spring have the following beneficial effects:
1. the fiber reinforcement layer in the rubber material is divided into the fiber parallel section, the fiber inclined section and the fiber transitional section, so that the rubber material has better toughness and structural strength, can bear larger torque when the automobile wheel jumps up and down, and ensures the service life of the air bag made of the rubber material.
2. The exposed part of the air spring air bag is the position corresponding to the inclined section of the air spring air bag fiber, so that the air spring air bag can keep stable size under the working condition of high internal pressure, not only can the condition that the air spring air bag is not interfered with other parts in a design installation space, but also can absorb and filter axial vibration waves, and achieves excellent comfortableness.
3. Under the condition of internal high air pressure, the air spring air bag is stretched and reciprocally flexed, and fiber lines of fiber parallel sections in the reinforced fiber layer inside the air spring air bag are only stretched and flexed because of parallel arrangement, so that the situation that the air spring air bag is damaged by not only the stretching force but also the shearing force is avoided.
Drawings
FIG. 1 is a cross-sectional view showing the internal structure of an air spring of the present invention in one embodiment of an air bag rubber material;
FIG. 2 is a schematic plan view of an inner fiber reinforced layer of an air spring bladder rubber material according to an embodiment of the present invention;
FIG. 3 is a schematic plan view of an outer fiber reinforced layer of an air spring bladder rubber material according to an embodiment of the present invention;
FIG. 4 is a flow chart of a manufacturing method according to an embodiment of the invention;
FIG. 5 is a schematic diagram of an air spring according to an embodiment of the invention.
Description of element reference numerals
1. A rubber layer; 11. an inner rubber layer; 12. an outer rubber layer; 2. a reinforcing fiber layer; 21. fiber parallel sections; 22. a fiber inclined section; 23. a fiber transition section; 24. an inner reinforcing fiber layer; 25. an outer reinforcing fiber layer; 3. an air spring body; 31. an aluminum cylinder; 32. a heave piston; 33. a support ring; 34. an upper cover; 35. a damper; 36. an air spring bladder; 37. a compression ring; 38. a rubber telescopic sleeve.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. It is also to be understood that the terminology used in the examples of the invention is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the invention. The test methods in the following examples, in which specific conditions are not noted, are generally conducted under conventional conditions or under conditions recommended by the respective manufacturers.
Please refer to fig. 1 to 5. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the invention, are not intended to be critical to the essential characteristics of the invention, but are intended to fall within the spirit and scope of the invention. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
Referring to fig. 1 and 2, the present invention provides an air spring air bag rubber material, which comprises a rubber layer 1 and a reinforced fiber layer 2. Wherein the rubber layer 1 is divided into an inner rubber layer 11 and an outer rubber layer 12; the reinforcing fiber layer 2 is disposed between the inner rubber layer 11 and the outer rubber layer 12.
Referring to fig. 1 and 2, in the present embodiment, the reinforcing fiber layer 2 is divided into a fiber parallel section 21, a fiber inclined section 22, and a fiber transition section 23. The fiber parallel section 21 is formed at one end of the reinforcing fiber layer 2, and the fibers in the fiber parallel section 21 are arranged along the warp direction; the fiber inclined section 22 is formed at the other end of the reinforced fiber layer 2, the fibers in the fiber inclined section 22 are obliquely arranged and form an included angle with the fibers in the fiber parallel section 21, and in addition, the included angle formed by the fibers in the fiber inclined section 22 and the fibers in the fiber parallel section 21 is 25-60 degrees; the fiber transition section 23 is formed between the fiber parallel section 21 and the fiber inclined section 22, the fibers in the fiber transition section 23 have a smooth curve, and both ends of the fibers in the fiber transition section 23 are connected with the fibers in the fiber parallel section 21 and the fibers in the fiber inclined section 22, respectively.
Referring to fig. 2 and 3, in the present embodiment, the reinforcing fiber layer 2 includes an inner reinforcing fiber layer 24, an outer reinforcing fiber layer 25, and a ply layer (not shown). The inner reinforcing fiber layer 24 corresponds to the inner rubber layer 11, and the outer reinforcing fiber layer 25 corresponds to the outer rubber layer 12; wherein the inner reinforcing fiber layer 24 and the outer reinforcing fiber layer 25 are mirror images. The inner reinforcing fiber layer 24 and the outer reinforcing fiber layer 25 which are arranged in a mirror image mode can increase the overall structural strength of the reinforcing fiber layer 2, so that the rubber material has better toughness and structural strength, can bear larger torque when the automobile wheel jumps up and down, and ensures the service life of the air bag made of the rubber material. In addition, a ply layer is provided between the inner reinforcing fiber layer 24 and the outer reinforcing fiber layer 25.
In practical application, the air bag made of the rubber material is arranged in the air spring, so that the dimensional stability of the large-angle crossed reinforced fiber can be met, and the torsion compatibility characteristic of the axially parallel reinforced fiber layer can be met; thus, the characteristics (namely excellent comfort) of the air spring can be better developed and reflected, the torsion flexibility is satisfied, and the service life is longer.
The invention also provides a manufacturing method, referring to fig. 4, which is made of the air spring air bag rubber material and comprises the following steps:
s100, extruding fluid glue solution through an extruder port, placing the glue solution on a forming die, and then cooling to form an inner rubber layer 11;
s200, arranging and covering a layer of angle-variable reinforced fiber ropes on the surface of the inner rubber layer 11 according to design requirements by a guy wire spinning method to form an inner reinforced fiber layer 24;
s300, covering a layer of curtain cloth glue on the surface of the inner reinforced fiber layer 24 to form a curtain cloth glue layer;
s400, repeating a wire pulling spinning method on the surface of the cord fabric glue layer, and mirror-arranging and covering a layer of variable-angle reinforcing fiber ropes according to design requirements to form an outer reinforcing fiber layer 25, wherein the angle of the reinforcing fiber ropes is mirror-image with the angle of the reinforcing fiber ropes on the surface of the inner rubber layer;
s500, covering a layer of glue solution on the surface of the outer reinforcing fiber layer 25 to form the outer rubber layer 12.
The present invention also provides an air spring, referring to fig. 5, comprising an air spring body 3 and an air spring air bag 36 installed in the air spring body 3, wherein the air spring air bag 36 is made of the air spring air bag rubber material.
Referring to fig. 5, in the present embodiment, the air spring body 3 includes an aluminum cylinder 31, a rolling piston 32, a support ring 33, an upper cover 34, and a damper 35. Wherein the aluminum tube 31 is in a hollow tube shape, two ends of the aluminum tube 31 are opened, and the caliber of one opening is larger than that of the other opening; one end of the aluminum cylinder 31 with smaller caliber is coaxially and fixedly connected with a rubber telescopic sleeve 38, and the rubber telescopic sleeve 38 can protect an undulating piston 32 fixed inside the aluminum cylinder 31.
Referring to fig. 5, the rolling piston 32 is coaxially inserted into the aluminum cylinder 31, and is inserted into the aluminum cylinder 31 through a larger diameter end of the aluminum cylinder 31, the cylinder of the rolling piston 32 is disposed in the aluminum cylinder and the rubber expansion sleeve 38, the damper 35 is fixed at one end of the cylinder near the rubber expansion sleeve 38, and the piston rod of the rolling piston 32 is slidably connected in the cylinder.
Referring to fig. 5, the supporting ring 33 is coaxially clamped at one end of the aluminum cylinder 31 with a larger caliber, and a certain gap exists between the supporting ring 33 and the side wall of the aluminum cylinder 31, so that the air spring air bag 36 can be conveniently clamped inside the aluminum cylinder 31; in addition, a through hole (not labeled in the figure) for the piston rod of the undulating piston 32 to pass through is further formed on the supporting ring 33, so that the piston rod of the undulating piston 32 can be connected with the upper cover 34, and the supporting ring 33 can also play a certain supporting role on the upper cover 34.
Referring to fig. 5, the upper cover 34 is coaxially fixed on the supporting ring 33, and a gap is formed between the bottom of the upper cover 34 and the aluminum cylinder 31, wherein the gap is generated according to the actual assembly requirement of an actual vehicle model, that is, the air spring meets the requirement of dimensional stability in a smaller installation space (especially a passenger car), and another through hole (not labeled in the figure) for the piston rod of the rolling piston 32 to pass through is formed in the center of the upper cover 34, so that the piston rod of the rolling piston 32 is conveniently connected with other parts of the suspension assembly of the vehicle.
Referring to fig. 5, two ends of an air spring air bag 36 are fixedly connected with an upper cover 34 and an aluminum cylinder 31 respectively, and are arranged around the inner side walls of the upper cover 34 and the aluminum cylinder 31, a compression ring 37 is fixed at the connection position of the upper cover 34 and the aluminum cylinder 31 corresponding to the air spring air bag 36, the air spring air bag 36 is fixed through the compression ring 37, and the middle position of the air spring air bag 36 is buckled and fixed with the aluminum cylinder 31 through the support ring 33 by combining with the support ring 33, so that the stability of the fixed connection of the air spring air bag 36 with the aluminum cylinder 31 and the upper cover 34 is ensured; in the embodiment, the fiber inclined section 23 in the air spring air bag 36 corresponds to the gap formed between the upper cover 34 and the aluminum cylinder 31, so that in order to meet the requirement of the air spring on dimensional stability in a small installation space (especially a passenger car), part of the air spring air bag 36 is exposed outside the aluminum cylinder 31 and the upper cover 34, and therefore the constraint and protection of the aluminum cylinder 31 are avoided, and the assembly and the placement meet the installation requirement of the air spring air bag 36 on one hand; on the other hand, mounting the portion of the air spring bag 36 having high structural strength at the gap satisfies the reciprocating torsion about the axis of the damper 35 while ensuring the service life of the air spring bag 36.
Referring to fig. 5, the air spring air bag 36 located in the aluminum cylinder 31 is provided with a U-shaped cross section for filling the gap between the aluminum cylinder 31 and the rolling piston 32, so that, on one hand, the piston cylinder of the rolling piston 32 can be clamped to a certain extent, and on the other hand, a certain buffering effect is also provided, so that the rolling piston 32 can be prevented from shaking when the wheel jumps up and down.
In practical application, the upper end of the air spring air bag 36 is not constrained by the outer aluminum cylinder 31 (rigid piston sleeve), the exposed part is the position corresponding to the inclined section 23 of the air spring air bag 36, the stable size can be kept under the working condition of high internal pressure, the condition that the air spring air bag is not interfered with other parts in the design and installation space can be met, and axial vibration waves can be absorbed and filtered, so that excellent comfort is achieved. With the up-and-down runout of the wheel and the expansion and contraction of the damper 35, the fiber parallel section 21 of the air spring air bag 36 wraps around the piston cylinder outer wall of the undulating piston 32 while being restrained by the aluminum cylinder 31, because the support ring 33 is generally fitted between the fiber inclined section 22 and the fiber transition section 23 of the air spring air bag 36. Under the condition of high internal air pressure, the air spring air bag 36 is stretched and reciprocally flexes, and fiber lines of the fiber parallel sections 21 in the reinforced fiber layer 2 inside the air spring air bag 36 are only stretched and flexes because of parallel arrangement, so that the situation that the air spring air bag 36 is damaged by not only stretching force but also shearing force is avoided, the situation can aggravate the heat generated by the air spring air bag 36 in the movement process, aggravate the fatigue damage to rubber, and reduce the service life of the air spring air bag 36.
In summary, the fiber reinforced layer 2 in the rubber material is divided into the fiber parallel section 21, the fiber inclined section 22 and the fiber transition section 23, so that the rubber material has better toughness and structural strength, can bear larger torque when the automobile wheel jumps up and down, and ensures the service life of the air bag made of the rubber material; the exposed part of the air spring air bag 36 is the position corresponding to the inclined section 22 of the air spring air bag 36 fiber, so that the stable size can be kept under the working condition of high internal pressure, the condition that the air spring air bag is not interfered with other parts in the design and installation space can be met, and axial vibration waves can be absorbed and filtered, so that excellent comfortableness is achieved. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (6)
1. An air spring, comprising:
the air spring air bag comprises a rubber layer and a reinforced fiber layer, wherein the rubber layer comprises an inner rubber layer and an outer rubber layer, the reinforced fiber layer is arranged between the inner rubber layer and the outer rubber layer, the reinforced fiber layer comprises a fiber parallel section, a fiber inclined section and a fiber transition section, the fiber parallel section is formed at one end of the reinforced fiber layer, the fibers in the fiber parallel section are arranged along the warp direction, the fiber inclined section is formed at the other end of the reinforced fiber layer, and the fibers in the fiber inclined section are obliquely arranged and form an included angle with the fibers in the fiber parallel section; the fiber transition section is formed between the fiber parallel section and the fiber inclined section, and the fibers in the fiber transition section are smooth curves and are used for connecting the fibers in the fiber parallel section and the fiber inclined section;
the air spring body comprises an upper cover, a fluctuation piston, a supporting ring, a shock absorber and an aluminum cylinder, wherein two ends of the aluminum cylinder are opened, the caliber of one end of the aluminum cylinder is larger than that of the other end of the aluminum cylinder, the fluctuation piston is coaxially arranged in the aluminum cylinder in a penetrating manner and is detachably and fixedly connected with the aluminum cylinder, the supporting ring is coaxially fixed at one end with the larger caliber of the aluminum cylinder, the upper cover is coaxially fixed above the supporting ring, a gap is formed between the upper cover and the aluminum cylinder, and the shock absorber is coaxially fixed with the fluctuation piston;
the air spring air bag is installed in the air spring body, the fiber inclined section in the air spring corresponds to a gap formed between the upper cover and the aluminum cylinder, and two ends of the air spring air bag are fixedly connected with the upper cover and the aluminum cylinder respectively and are arranged around the outer side wall of the upper cover and the inner side wall of the aluminum cylinder.
2. An air spring according to claim 1, wherein the angle formed by the fibres in the inclined section of fibres and the extension of the fibres in the parallel section of fibres is between 25 and 60 degrees.
3. The air spring of claim 1 wherein said reinforcing fiber layer is further divided into:
an inner reinforcing fiber layer disposed at a position close to the inner rubber layer;
the outer reinforcing fiber layer is arranged at a position close to the outer rubber layer;
the curtain cloth glue layer is arranged between the inner reinforcing fiber layer and the outer reinforcing fiber layer;
the inner reinforcing fiber layer and the outer reinforcing fiber layer are arranged in a mirror image mode along the cord fabric glue layer.
4. The air spring according to claim 1, wherein a pressing ring is fixed at the joint of the upper cover and the aluminum cylinder corresponding to the air spring air bag, and the air spring air bag is fixed through the pressing ring.
5. An air spring as claimed in claim 1 wherein said air spring bladder within said aluminum cylinder is U-shaped in cross section for filling a gap between said aluminum cylinder and said undulating piston.
6. The air spring according to claim 1, wherein a piston rod of the rolling piston passes through a through hole provided on the support ring and is connected to the upper cover.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2021110383378 | 2021-09-06 | ||
| CN202111038337 | 2021-09-06 |
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| Publication Number | Publication Date |
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| CN113883205A CN113883205A (en) | 2022-01-04 |
| CN113883205B true CN113883205B (en) | 2023-06-27 |
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| CN202111113195.7A Active CN113883205B (en) | 2021-09-06 | 2021-09-18 | Air spring air bag rubber material, manufacturing method and air spring |
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| CN108026999A (en) * | 2015-09-17 | 2018-05-11 | 康蒂泰克空气弹簧系统有限公司 | Product, especially air-spring bellows, metal to rubber element or damper |
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| JPH03336A (en) * | 1989-05-26 | 1991-01-07 | Yokohama Rubber Co Ltd:The | Pneumatic spring |
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| CN113063609B (en) * | 2021-05-12 | 2024-06-04 | 青岛博锐智远减振科技有限公司 | Detection method and detection test bed for automobile air spring air bag cord |
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| CN113883205A (en) | 2022-01-04 |
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