CN112963481A - Combined type air spring - Google Patents
Combined type air spring Download PDFInfo
- Publication number
- CN112963481A CN112963481A CN202110207050.7A CN202110207050A CN112963481A CN 112963481 A CN112963481 A CN 112963481A CN 202110207050 A CN202110207050 A CN 202110207050A CN 112963481 A CN112963481 A CN 112963481A
- Authority
- CN
- China
- Prior art keywords
- skin
- air spring
- support ring
- bladder
- capsule
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002775 capsule Substances 0.000 claims abstract description 49
- 239000002131 composite material Substances 0.000 claims abstract description 15
- 230000007704 transition Effects 0.000 claims description 4
- 239000012528 membrane Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000009172 bursting Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001687 destabilization Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- F16F9/3207—Constructional features
-
- 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
- F16F9/3207—Constructional features
- F16F9/3214—Constructional features of pistons
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a composite air spring which comprises an upper tank body, a bladder skin and a lower supporting seat, wherein a piston is arranged in the upper tank body, the bladder skin is curled on the piston at the lower side of the upper tank body, and the bottom of the bladder skin is arranged on the lower supporting seat; the capsule skin is provided with a capsule skin cord, the arrangement of the capsule skin cord is divided into two sections, the lower section adopts zero-angle parallel arrangement, and the upper section adopts non-zero-angle cross arrangement. The first support ring and the second support ring are bonded on the outer side of the capsule skin and form a capsule type part together with the lower base; the upper section of the bladder skin is crimped onto the piston to form the membrane portion. A jacket of variable angle cords is applied, with parallel cord segments for the bladder portion to carry torsional loads and cross cords for the diaphragm portion to carry repeated crimp loads.
Description
Technical Field
The invention relates to an air spring, in particular to a composite air spring, which is used for the technical field of passenger vehicle chassis.
Background
Most of the stretching and compressing motions of the existing air spring of the passenger car are generated by the fact that a capsule skin is curled and unfolded on a piston. In the process of stretching and compressing of the air spring of the passenger car, particularly the air spring of the elastic damping separation type, the upper mounting surface and the lower mounting surface are always provided with larger bending angles and torsion angles along the axis.
The bending angle can lead to uneven curling of the capsule on the piston, and the extreme tension situation can cause a destabilization state that one side is not curled at all, and the bursting is caused. The existing solution is to increase the piston length and increase the crimp margin, but this can present significant challenges to the space layout.
The twisting angle can cause relative dislocation of the bladder skin cross cord, seriously affect the durability of the bladder skin and cause rupture or air leakage. The existing solution is to add a plane bearing on the spring mounting surface, and the plane bearing replaces the capsule skin to bear the torsional movement, thereby protecting the capsule skin. However, this solution increases the number of parts for assembling the spring, deteriorates the stability of the whole spring, and makes the assembly more complicated.
The existing air spring bag skin cord is in a pure cross type or a parallel type. A bladder sheath using pure cross cords can achieve higher burst pressure, i.e., load bearing capacity, but cannot withstand torsional loads as previously described. In contrast, a bladder skin employing pure parallel cords can withstand torsional loads, but has low load bearing capacity.
The existing air springs are membrane type air springs or bag type air springs and are used in different occasions. For example, the membrane type air spring has the characteristics of low rigidity, good comfort, strict requirement on durability of a bag skin and the like, and is commonly used for a suspension of a passenger vehicle or a commercial vehicle. The bag type air spring has the characteristics of high rigidity, high bursting pressure, relatively poor comfort and the like, and is commonly used for partial commercial vehicles or large-scale vibration equipment.
The invention discloses a novel bag type air spring in a CN201811198306.7 document, which belongs to the technical field of air springs and comprises an air bag body, wherein the air bag body comprises a first seam allowance steel ring, a waist ring steel ring, a second seam allowance steel ring, rubber and curtain cloth, and the air bag body is integrally formed by the first seam allowance steel ring, the waist ring steel ring, the second seam allowance steel ring, the rubber and the curtain cloth; the air bag comprises an air bag body, an iron upper cover plate, a valve body, a valve seat and a valve seat, wherein the iron upper cover plate is positioned at the top end of the; the air bag body, the upper cover and the piston adopt a spigot fit and pressure self-sealing mode, so that the air bag is easy to disassemble and assemble; the air bag body can be independently replaced, so that the maintenance cost is reduced; the novel bag type air spring integrates the advantages of the traditional bag type air spring and the membrane type air spring, is strong in bearing capacity, large in volume, low in natural frequency and long in working stroke, and can be designed to obtain larger working stroke and more superior comfort on the premise of not increasing the bending number of the air bag. The purpose is to obtain an air spring with large load, long stroke and high comfort. The invention utilizes the combination of a bag type structure and a film type structure, and aims to absorb the buckling movement by utilizing the characteristic that the bag type structure is easy to buckle, thereby improving the stability of the spring.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a composite air spring, namely a combination of a bag type air spring and a membrane type air spring, which can bear large bending deformation to keep stable, can bear torsional load and can ensure the bearing capacity.
The purpose of the invention is realized by the following technical scheme, which is combined with the attached drawings:
a combined type air spring comprises an upper tank body 1, a bladder skin 2 and a lower supporting seat 7, wherein a piston is arranged in the upper tank body 1, the bladder skin 2 is curled on the piston at the lower side of the upper tank body 1, and the bottom of the bladder skin 2 is arranged on the lower supporting seat 7; the capsule skin 2 is provided with a capsule skin cord, the arrangement of the capsule skin cord is divided into two sections, the lower section adopts zero-angle parallel arrangement, and the upper section adopts non-zero-angle cross arrangement.
Furthermore, a first support ring 4 is bonded on the outer side of the capsule shell 2, and the width of the first support ring 4 is larger than the transition area of the capsule shell between the upper section and the lower section of the capsule shell cord.
Furthermore, the bladder skin cords on the upper side of the first support ring 4 are arranged in a cross mode, and the bladder skin cords on the lower side of the first support ring are arranged in a parallel mode.
Furthermore, the upper section and the lower section of the bag skin cord integrally extend along the length direction without overlapping.
Further, the capsule skin 2 is a non-constant diameter capsule skin, and the outer diameter of the area above the first support ring 4 is smaller than that of the area below the first support ring 4.
Furthermore, a second support ring 5 is bonded on the outer side of the capsule shell 2, and the second support ring 5 is positioned between the first support ring 4 and the lower support seat 7.
Furthermore, the capsule skin 2 is clamped with the piston at the lower side of the upper tank body 1 through an upper clamping ring 3.
Further, the capsule skin 2 and the lower support seat 7 are clamped through a lower clamping ring 6.
Further, the contact area of the lower supporting seat 7 and the capsule skin 2 is provided with a cambered surface.
The invention has the following beneficial effects:
the invention relates to a combined air spring which is formed by combining a bag type air spring and a membrane type air spring, wherein a bag skin is curled on a piston at the lower side of an upper tank body to form a membrane type air spring part; the first support ring and the second support ring are bonded on the outer side of the bag skin and form a bag type part together with the lower base, and the bag type air spring bears the buckling and twisting movement.
The air spring of the present invention utilizes a bladder skin of variable angle cords wherein parallel links are used for the bladder portion to bear torsional loads and cross cords are used for the membrane portion to bear repeated crimping loads.
The arrangement mode of the cord thread is divided into two sections, but the cord thread in the whole length direction is complete and is not overlapped.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
FIG. 1 is a cross-sectional view of a composite air spring structure of the present invention;
FIG. 2 is a schematic view of a variable angle cord according to the present invention;
in the figure:
1-upper tank (containing piston);
2-capsule shell;
3-installing a clamping ring;
4-support ring number one;
5-support ring II;
6-lower snap ring;
7-lower support seat.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
As shown in fig. 1, a composite air spring comprises an upper tank body 1, a bladder skin 2 and a lower supporting seat 7, wherein a piston is arranged in the upper tank body 1, the bladder skin 2 is curled on the piston at the lower side of the upper tank body 1, and the bottom of the bladder skin 2 is arranged on the lower supporting seat 7; the capsule skin 2 is provided with a capsule skin cord, the arrangement of the capsule skin cord is divided into two sections, the lower section adopts zero-angle parallel arrangement, and the upper section adopts non-zero-angle cross arrangement.
Furthermore, a first support ring 4 is bonded on the outer side of the capsule skin 2, and the width of the first support ring 4 is larger than the transition area between the upper section and the lower section of the capsule skin cord.
Furthermore, the bladder skin cords on the upper side of the first support ring 4 are arranged in a cross mode, and the bladder skin cords on the lower side of the first support ring are arranged in a parallel mode.
Furthermore, the upper section and the lower section of the bag skin cord integrally extend along the length direction without overlapping.
Further, the capsule skin 2 is a non-constant diameter capsule skin, and the outer diameter of the area (area I) above the first support ring 4 is smaller than the outer diameter of the area (area II) below the first support ring 4.
Furthermore, a second support ring 5 is bonded on the outer side of the capsule shell 2, and the second support ring 5 is positioned between the first support ring 4 and the lower support seat 7.
Furthermore, the capsule skin 2 is clamped with the piston at the lower side of the upper tank body 1 through an upper clamping ring 3.
Further, the capsule skin 2 and the lower support seat 7 are clamped through a lower clamping ring 6.
Further, the contact area of the lower supporting seat 7 and the capsule skin 2 is provided with a cambered surface.
Examples
A composite air spring comprises an upper tank body 1, a bag skin 2, a first clamping ring 3, a first support ring 4, a second support ring 5, a second clamping ring 6 and a lower support seat 7.
The upper tank body 1 and the bag skin 2 are clamped through an upper clamping ring 3, and the bag skin 2 is curled on a piston at the lower side of the upper tank body 1 to form a membrane type air spring part. In the working process of the spring, the coiling length of the capsule skin 2 on the piston of the upper tank body 1 is changed continuously, so that the length of the spring is changed continuously, namely, the suspension is jumped.
The first support ring 4 is bonded with the outer side of the capsule skin 2 and used for restricting the outer diameter of the capsule skin at the bonding position.
The width of the first support ring 4 needs to be wider than the transition area of the capsule cord, that is, the capsule cord on the upper side of the first support ring 4 is in a cross type, and the capsule cord on the lower side is in a parallel type.
The capsule skin 2 is a non-isodiametric capsule skin, the outer diameter of the area I is small, and the outer diameter of the area II is large. The cord of the capsule shell 2 in the area I is in a cross type, and the cord in the area II is in a parallel type.
The second support ring 5 is bonded with the capsule skin 2 and is positioned between the first support ring 4 and the lower support seat 7. The capsule skin 2 is clamped on the lower supporting seat 7 through the lower clamping ring 6.
The first support ring 4, the second support ring 5 and the lower support seat 7 form a bag skin air spring part for bearing the buckling and torsion loads in the working process of the air spring.
The contact area of the lower supporting seat 7 and the capsule skin 2 is provided with a cambered surface, and the supporting and guiding effects on the capsule skin are achieved.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.
In the description of the present embodiment, the terms "upper", "lower", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus should not be construed as limiting the present invention. Furthermore, the terms "a", "an" and "the" are used merely for descriptive distinction and have no particular meaning.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A composite air spring is characterized by comprising an upper tank body (1), a bag skin (2) and a lower supporting seat (7), wherein a piston is arranged in the upper tank body (1), the bag skin (2) is curled on the piston at the lower side of the upper tank body (1), and the bottom of the bag skin (2) is arranged on the lower supporting seat (7); the capsule skin (2) is provided with a capsule skin cord, the arrangement of the capsule skin cord is divided into an upper section and a lower section, the lower section adopts parallel arrangement, and the upper section adopts cross arrangement.
2. The composite air spring as claimed in claim 1, wherein a support ring (4) is bonded to the outer side of the bladder skin (2), and the width of the support ring (4) is greater than the transition area of the bladder skin between the upper and lower sections of the bladder skin cord.
3. A composite air spring according to claim 2, characterized in that the upper side of the support ring (4) has a crossed arrangement of sheath cords and the lower side has a parallel arrangement of sheath cords.
4. The composite air spring of claim 3, wherein said upper and lower sections of said bladder curtain line extend longitudinally and integrally without overlap.
5. A composite air spring according to claim 2, characterized in that the bellows (2) is a non-constant diameter bellows having an outer diameter above the first support ring (4) which is smaller than the outer diameter below the first support ring (4).
6. The composite air spring as claimed in claim 2, wherein a second support ring (5) is further bonded to the outer side of the bladder skin (2), and the second support ring (5) is located between the first support ring (4) and the lower support base (7).
7. A composite air spring according to claim 1, characterised in that the bellows (2) is clamped to the piston on the underside of the upper tank (1) by means of an upper clamping ring (3).
8. The composite air spring as claimed in claim 1, wherein the bellows (2) is clamped to the lower support (7) by means of a lower clamping ring (6).
9. The composite air spring as claimed in claim 1, wherein the contact area of the lower support base (7) and the bladder skin (2) is provided with a curved surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110207050.7A CN112963481A (en) | 2021-02-24 | 2021-02-24 | Combined type air spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110207050.7A CN112963481A (en) | 2021-02-24 | 2021-02-24 | Combined type air spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112963481A true CN112963481A (en) | 2021-06-15 |
Family
ID=76285950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110207050.7A Pending CN112963481A (en) | 2021-02-24 | 2021-02-24 | Combined type air spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112963481A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113883205A (en) * | 2021-09-06 | 2022-01-04 | 安徽隆威汽车零部件有限公司 | Air bag rubber material of air spring, manufacturing method and air spring |
| CN114486131A (en) * | 2022-01-06 | 2022-05-13 | 易瑞博科技（北京）有限公司 | Rigidity measuring method and system for air spring bag skin and storage medium |
| CN115059716A (en) * | 2022-05-26 | 2022-09-16 | 浙江孔辉汽车科技有限公司 | Air spring |
| CN115076277A (en) * | 2022-05-17 | 2022-09-20 | 中国第一汽车股份有限公司 | Low torsional rigidity's elasticity subtracts integral type air spring assembly |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101238308A (en) * | 2005-08-05 | 2008-08-06 | 株式会社普利司通 | Fibrous reinforcement for air spring and air spring |
| CN103477112A (en) * | 2011-04-06 | 2013-12-25 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Air spring having hybrid bellows |
| CN105339697A (en) * | 2013-06-20 | 2016-02-17 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Air spring |
| CN108953459A (en) * | 2018-10-15 | 2018-12-07 | 江西理工大学 | A kind of double restricted type novel suspending bracket air springs |
| CN109027093A (en) * | 2018-10-15 | 2018-12-18 | 江西理工大学 | A kind of Novel sac-type air spring |
| CN109661527A (en) * | 2016-09-06 | 2019-04-19 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Air spring unit with split type outer guide part |
| CN110159695A (en) * | 2019-05-17 | 2019-08-23 | 中国人民解放军海军工程大学 | Cord integration winding enhancing rubber air spring |
-
2021
- 2021-02-24 CN CN202110207050.7A patent/CN112963481A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101238308A (en) * | 2005-08-05 | 2008-08-06 | 株式会社普利司通 | Fibrous reinforcement for air spring and air spring |
| CN103477112A (en) * | 2011-04-06 | 2013-12-25 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Air spring having hybrid bellows |
| CN105339697A (en) * | 2013-06-20 | 2016-02-17 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Air spring |
| CN109661527A (en) * | 2016-09-06 | 2019-04-19 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Air spring unit with split type outer guide part |
| CN108953459A (en) * | 2018-10-15 | 2018-12-07 | 江西理工大学 | A kind of double restricted type novel suspending bracket air springs |
| CN109027093A (en) * | 2018-10-15 | 2018-12-18 | 江西理工大学 | A kind of Novel sac-type air spring |
| CN110159695A (en) * | 2019-05-17 | 2019-08-23 | 中国人民解放军海军工程大学 | Cord integration winding enhancing rubber air spring |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113883205A (en) * | 2021-09-06 | 2022-01-04 | 安徽隆威汽车零部件有限公司 | Air bag rubber material of air spring, manufacturing method and air spring |
| CN114486131A (en) * | 2022-01-06 | 2022-05-13 | 易瑞博科技（北京）有限公司 | Rigidity measuring method and system for air spring bag skin and storage medium |
| CN114486131B (en) * | 2022-01-06 | 2024-05-17 | 易瑞博科技（北京）有限公司 | Rigidity measuring method, system and storage medium of air spring capsule |
| CN115076277A (en) * | 2022-05-17 | 2022-09-20 | 中国第一汽车股份有限公司 | Low torsional rigidity's elasticity subtracts integral type air spring assembly |
| CN115076277B (en) * | 2022-05-17 | 2024-06-04 | 中国第一汽车股份有限公司 | Spring-reducing integrated air spring assembly with low torsional rigidity |
| CN115059716A (en) * | 2022-05-26 | 2022-09-16 | 浙江孔辉汽车科技有限公司 | Air spring |
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Application publication date: 20210615 |
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