CN111765195A - Composite air spring structure with built-in spiral spring - Google Patents
Composite air spring structure with built-in spiral spring Download PDFInfo
- Publication number
- CN111765195A CN111765195A CN202010773569.7A CN202010773569A CN111765195A CN 111765195 A CN111765195 A CN 111765195A CN 202010773569 A CN202010773569 A CN 202010773569A CN 111765195 A CN111765195 A CN 111765195A
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- CN
- China
- Prior art keywords
- air
- spring
- spiral spring
- air bag
- piston
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- 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.)
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Classifications
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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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
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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
- F16F9/0454—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 assembling method or by the mounting arrangement, e.g. mounting of the membrane
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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
- F16F9/3207—Constructional features
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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
- F16F9/3207—Constructional features
- F16F9/3214—Constructional features of pistons
Abstract
The invention relates to a composite air spring structure with a built-in spiral spring, which comprises an upper aluminum part, a piston, an air bag, a dust cover and a spiral spring, wherein the upper port of the air bag is fixedly arranged on the outer side of the upper aluminum part, the lower port of the air bag is fixedly arranged on the outer side of the piston, the upper port of the dust cover is connected to the outer side of the upper port of the air bag, the spiral spring is positioned in an inner bag, the upper end of the spiral spring is connected with the upper aluminum part, the lower end of the spiral spring is connected with a base, and the base is arranged. The connecting structure of the spiral spring and the piston is arranged in the air spring, so that the rigidity and the bearing superposition are achieved, and the air spring meets the requirements of high-performance bearing and rigidity in a limited space.
Description
Technical Field
The invention relates to the field of sleeve type air springs, in particular to a composite air spring structure with a built-in spiral spring.
Background
Today, there are three main types of air springs: bladder, membrane, and sleeve. The sleeve type air spring is compact in structure and relatively small in bearing capacity, so that the sleeve type air spring is often applied to occasions with relatively compact space, such as seat suspensions, car suspensions and chassis suspensions of off-road vehicles. However, in the prior art, the sleeve type air spring applied to the car chassis has small bearing capacity and rigidity, and needs a large requirement on bearing capacity in a narrow car and off-road vehicle chassis suspension space, the internal pressure of the air spring is relatively large, the air spring is easy to fatigue and lose efficacy under large internal pressure due to exposure to air, and the service life of the air spring is shortened. Therefore, the development of the sleeve type air spring with high bearing capacity and rigidity, which is applied to the chassis suspension of the cars and off-road vehicles, is particularly urgent.
Disclosure of Invention
In view of the above, the present invention has been developed to provide a compound air spring structure with an internal coil spring that overcomes or at least partially solves the above-mentioned problems.
According to one aspect of the invention, a composite air spring structure with a built-in spiral spring is provided, which comprises an upper aluminum part, a piston, an air bag, a dust cover and a spiral spring, wherein an upper port of the air bag is fixedly arranged on the outer side of the upper aluminum part, a lower port of the air bag is fixedly arranged on the outer side of the piston, an upper port of the dust cover is connected on the outer side of the upper port of the air bag, the spiral spring is positioned in the inner bag, the upper end of the spiral spring is connected with the upper aluminum part, the lower end of the spiral spring is connected with a base, and the base is arranged.
In a possible implementation mode, an air nozzle is arranged on the upper aluminum piece and communicated with the inside of the air bag, so that the air filling and discharging function of the inside of the air bag 7 is realized.
In one possible embodiment, the upper port of the air bag is fastened with the upper aluminum piece through buckling of the upper pressing ring.
In one possible embodiment, the upper port of the dust cap is secured to the upper aluminum by a clamp.
In a possible embodiment, a first rubber pad is arranged in the aluminum piece, and the upper end of the spiral spring is connected with the first rubber pad.
In a possible embodiment, a cylindrical protrusion is arranged on the base, a second rubber pad is sleeved outside the bottom of the cylindrical protrusion, and the lower end of the spiral spring is sleeved outside the cylindrical protrusion and abuts against the second rubber pad and then is connected by a pin in an interference fit manner.
In one possible embodiment, the base and the piston are connected by a screw thread.
In one possible embodiment, the lower port of the air bag is fastened with the piston through a lower pressing ring in a buckling mode.
The invention has the beneficial effects that:
(1) the rigidity and the bearing capacity of the air spring are improved, the rigidity is improved by more than 30%, and the bearing capacity is improved by more than 20%.
(2) Under the overload condition, the built-in spiral spring can play a role in supporting and buffering, and the upper cover of the air spring and the lower piston are prevented from being damaged due to collision. The protective effect is achieved, and the service life of the product is prolonged.
(3) After the bearing capacity of the built-in air spring is improved, the requirement on the internal pressure of the air spring can be correspondingly reduced, so that the durability of the air spring is improved.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced 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 to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic perspective view of a compound air spring structure with an internal spiral spring according to an embodiment of the present invention;
FIG. 2 is a perspective view of a compound air spring structure with an internal coil spring from another perspective;
FIG. 3 is a cross-sectional view of FIG. 1;
FIG. 4 is a schematic perspective view of a cylindrical protrusion according to an embodiment of the present invention;
description of reference numerals:
1-air nozzle, 2-upper aluminum piece, 3-hoop, 4-upper press ring, 5-first rubber pad, 6-dust cover, 7-air bag, 8-spiral spring, 9-pin, 10-lower press ring, 11-second rubber pad, 12-base and 13-piston;
121-cylindrical protrusion, 122-pin hole.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The terms "comprises" and "comprising," and any variations thereof, in the present description and claims and drawings are intended to cover a non-exclusive inclusion, such as a list of steps or elements.
The technical solution of the present invention is further described in detail with reference to the accompanying drawings and embodiments.
Referring to fig. 1 to 4, an embodiment of the present invention provides a compound air spring structure with an internal spiral spring, including: go up aluminium alloy 2, piston 13, gasbag 7, dust cover 6 and coil spring 8, the last port fastening of gasbag 7 is in go up the outside of aluminium alloy 2, the lower port fastening of gasbag 7 is in the outside of piston 13, the last port of dust cover 6 is connected the outside of the last port of gasbag 7, coil spring 8 is located interior bag 7, the upper end of coil spring 8 is connected go up aluminium alloy 2, base 12 is connected to the lower extreme of coil spring 8, base 12 sets up on the piston 13.
In one example, an air tap 1 is arranged on the upper aluminum part 2, and the air tap 1 is communicated with the inside of the air bag 7 to realize the inflation and deflation functions of the inside of the air bag 7.
In one example, the upper port of the air bag 7 is fastened with the upper aluminum piece 2 through an upper pressing ring 4 in a buckling mode.
In one example, the upper port of the dust cap 6 is secured to the upper aluminum member 2 by a clamp 3.
In one example, a first rubber pad 5 is arranged in the aluminum member 2 to play a role of buffering, no noise is generated when the aluminum member moves up and down, and the upper end of the spiral spring 8 is connected with the first rubber pad 5.
In one example, a cylindrical protrusion 121 is arranged on the base 12, a second rubber pad 11 is sleeved on the outer side of the bottom of the cylindrical protrusion 121 to play a buffering role and ensure no noise during up-and-down movement, and the lower end of the spiral spring 8 is sleeved on the outer side of the cylindrical protrusion 121 and abuts against the second rubber pad 11 and then is connected by a pin 9 in an interference fit manner.
In one example, the base 12 and the piston 13 are connected by a threaded arrangement.
In one example, the lower port of the air bag 7 is fastened with the piston 13 through the lower pressing ring 10 in a buckling mode.
The installation and working process of the invention are specifically explained as follows:
(1) during assembly, the second rubber pad 11 is placed into the base 12, the spiral spring 8 is placed into the upper portions of the base 12 and the rubber pad 11, the pin 9 is pressed into the pin hole 122 of the cylindrical protrusion 121 of the base 12 through the press, and the pin 9 is connected with the pin hole in an interference fit mode. Then, a little thread fastening glue is punched on the thread at the bottom of the base 12, the base 12 is screwed into the internal thread hole of the piston 13, and then the base is fastened by a spanner. The first rubber pad 5 is adhered inside the upper aluminum part 2 by glue, and then is buckled and pressed together with the upper port of the air bag 7 by an upper press ring 4 through a pipe press. And connecting the assembled assembly of the spiral spring 8, the base 12 and the piston 13 with the air bag 7, and buckling and pressing the piston 13 and the lower port of the air bag 7 together through a pressing ring 10 for a pipe pressing machine. The assembled airbag is then crimped to the installation height position by a crimper. The air faucet 1 is screwed into the upper part of the upper aluminum piece 2 by a wrench. And (3) sheathing the dust cover 6 from the upper end of the air spring, stopping after the upper port of the dust cover 6 reaches the position of the press ring 4, and then fastening by buckling through the clamp 3.
(2) In the work, the air can realize the function of charging and discharging air into the air bag 7 through the air tap 1, when the air pressure charged into the air bag is increased, the rigidity and the hardness of the air bag are also increased, the internal spiral spring also bears part of load, and the load capacity and the rigidity requirement of the air spring are improved. When the vehicle is overloaded, the air spring and the internal spiral spring are pressed to the limit, so that the collision between the upper aluminum piece and the piston is limited, a protection effect is achieved under the limit condition, the service performance of the air spring is further improved, and the service life of the air spring is further prolonged.
The above embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. The composite air spring structure with the built-in spiral spring is characterized by comprising an upper aluminum piece (2), a piston (13), an air bag (7), a dust cover (6) and a spiral spring (8), wherein an upper port of the air bag (7) is fastened on the outer side of the upper aluminum piece (2), a lower port of the air bag (7) is fastened on the outer side of the piston (13), an upper port of the dust cover (6) is connected on the outer side of the upper port of the air bag (7), the spiral spring (8) is located in the inner bag (7), the upper end of the spiral spring (8) is connected with the upper aluminum piece (2), the lower end of the spiral spring (8) is connected with a base (12), and the base (12) is arranged on the piston (13).
2. The composite air spring structure with the built-in spiral spring according to claim 1, wherein an air tap (1) is arranged on the upper aluminum part (2), and the air tap (1) is communicated with the inside of the air bag (7) to realize the function of inflating and deflating the inside of the air bag (7).
3. The built-in spiral spring compound air spring structure as claimed in claim 1, wherein the upper port of the air bag (7) is fastened to the upper aluminum member (2) by means of an upper pressing ring (4).
4. The innerspring composite air spring structure of claim 1, wherein the upper port of the dust cover (6) is secured to the upper aluminum member (2) by a clamp (3).
5. The built-in coil spring compound air spring structure according to claim 1, wherein a first rubber pad (5) is provided in the aluminum member (2), and an upper end of the coil spring (8) is connected to the first rubber pad (5).
6. The built-in spiral spring compound air spring structure as claimed in claim 1, wherein the base (12) is provided with a cylindrical protrusion (121), a second rubber pad (11) is sleeved on the outer side of the bottom of the cylindrical protrusion (121), and the lower end of the spiral spring (8) is sleeved on the outer side of the cylindrical protrusion (121) and abuts against the second rubber pad (11) and then is connected by a pin (9) in an interference fit manner.
7. The innerspring composite air spring structure of claim 1 wherein the base (12) and piston (13) are connected by a threaded arrangement.
8. The built-in coil spring compound air spring structure according to claim 1, wherein the lower port of the air bag (7) is fastened to the piston (13) by a lower pressing ring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010773569.7A CN111765195A (en) | 2020-08-04 | 2020-08-04 | Composite air spring structure with built-in spiral spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010773569.7A CN111765195A (en) | 2020-08-04 | 2020-08-04 | Composite air spring structure with built-in spiral spring |
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| Publication Number | Publication Date |
|---|---|
| CN111765195A true CN111765195A (en) | 2020-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010773569.7A Pending CN111765195A (en) | 2020-08-04 | 2020-08-04 | Composite air spring structure with built-in spiral spring |
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| Country | Link |
|---|---|
| CN (1) | CN111765195A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102585126B1 (en) * | 2022-03-23 | 2023-10-04 | 장윤호 | Air spring for enhancing shock absorption efficiency |
-
2020
- 2020-08-04 CN CN202010773569.7A patent/CN111765195A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102585126B1 (en) * | 2022-03-23 | 2023-10-04 | 장윤호 | Air spring for enhancing shock absorption efficiency |
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