Base for air spring and air spring
By designing the heat dissipation channel of the base of the air spring, the problem of the oil storage cylinder not being able to effectively dissipate heat is solved, and the reliability and service life of the air spring are improved.
Patent Information
- Application Number
- CN202323666186.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2033-12-29
AI Technical Summary
The base of the existing air spring is sealed and connected to the rear end of the oil storage barrel, resulting in the oil storage barrel being unable to effectively dissipate heat, affecting its reliability and service life.
Design a base for air spring with a contraction end and an expanded end, and the inner wall is spaced from the outer wall of the oil storage cylinder to form a heat dissipation channel, increasing the contact area between the oil storage cylinder and the outside world, ensuring sealing connection through reinforcement ribs and sealing ring grooves, simplifying the air bag Connection process with the base.
It effectively improves the heat dissipation performance of the oil storage cylinder, extends the service life of the air spring, and improves its overall reliability.
Smart Images
Figure CN222141862U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air springs, in particular to a base for an air spring and an air spring. Background Art
[0002] Air springs are used in automobiles, rail vehicles, industrial equipment and other fields to buffer and reduce vibration. Figure 1 The cross-sectional structure of the current air spring is shown; Figure 1 As shown, the main components of the air spring include an oil storage cylinder 10', a piston rod 20' extending into the oil storage cylinder 10' and capable of reciprocating movement, and an air bag 30' respectively connected to the oil storage cylinder 10' and the piston rod 20', and the air bag 30' is filled with compressed air. The outer wall of the oil storage cylinder 10' is sleeved with the base 40', the end of the piston rod 20' is sleeved with the cover body 50', and the two ends of the air bag 30' are respectively connected to the base 40' and the cover body 50'. When vibration occurs, the piston rod 20' reciprocates, driving the air bag 30' to telescope to achieve buffering and vibration reduction by utilizing the elastic effect of air.
[0003] The current air springs have at least the following problems: the base 40' is sealed to the rear end 10'b of the oil reservoir 10', the oil reservoir 10' is almost not in contact with the outside world and cannot effectively dissipate heat; and the oil reservoir 10' generates a large amount of heat during the operation of the air spring, and the inability to effectively dissipate heat will seriously affect the reliability of the oil reservoir 10' and the entire air spring.
[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the utility model, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content
[0005] In view of this, the utility model provides an air spring base and an air spring, which can form a heat dissipation channel between the air spring base and the oil storage cylinder, thereby improving the reliability of the oil storage cylinder and the air spring and extending the service life of the air spring.
[0006] One aspect of the utility model provides a base for an air spring, which is sleeved on the outer wall of an oil storage cylinder of the air spring and is connected to the rear end of an air bag of the air spring; wherein the base for the air spring has a contraction end and an expansion end, the contraction end is close to the front end of the oil storage cylinder and is sealedly connected to the outer wall of the oil storage cylinder, and the inner wall of the base for the air spring is spaced from the outer wall of the oil storage cylinder to form a heat dissipation channel that passes through the inner cavity of the base for the air spring and the expansion end to the outside.
[0007] In some embodiments, the inner wall of the air spring base is provided with a plurality of reinforcing ribs extending in the axial direction and spaced apart in the circumferential direction, and the plurality of reinforcing ribs form an assembly space along the circumferential direction that matches the outer wall of the oil storage cylinder.
[0008] In some embodiments, a support ring is provided at the rear end of the oil storage cylinder, and the support ring abuts against the reinforcing rib extending to the expansion end.
[0009] In some embodiments, a sealing ring groove is provided on the inner wall of the contraction end, and the inner wall of the contraction end and the outer wall of the oil storage cylinder are sealedly connected via a sealing ring clamped in the sealing ring groove.
[0010] In some embodiments, the inner wall of the air spring base is provided with a plurality of reinforcing ribs extending in the axial direction, and each of the reinforcing ribs includes two sections located at two axial ends of the sealing ring groove.
[0011] In some embodiments, the outer wall of the contraction end is provided with a first clamping ring groove, the rear end of the airbag is sleeved on the outer wall of the contraction end, and is clamped and connected by a first clamping ring that clamps the first clamping ring groove.
[0012] In some embodiments, the rear end of the airbag is folded in half and sleeved onto the outer wall of the contraction end, and the first clamping ring is wrapped around the folded portion of the airbag.
[0013] In some embodiments, a sealing ring groove is provided on the inner wall of the contracted end, and the first clamping ring groove is staggered with the sealing ring groove in the axial direction.
[0014] Another aspect of the utility model provides an air spring, comprising an oil storage cylinder, a piston rod extending into the oil storage cylinder and capable of reciprocating movement, and a cover body sleeved on the front end of the piston rod; wherein the air spring also includes an air spring base as described in any of the above embodiments; wherein the front end of the airbag is connected to the cover body.
[0015] In some embodiments, the outer wall of the cover body is provided with a second clamping ring groove, the front end of the airbag is sleeved on the outer wall of the cover body and is clamped and connected by a second clamping ring that clamps into the second clamping ring groove.
[0016] Compared with the prior art, the beneficial effects of the present invention include at least:
[0017] The air spring base of the utility model has a contraction end and an expansion end, the contraction end is used to be sealed and connected with the outer wall of the oil reservoir and is close to the front end of the oil reservoir, wherein the front end of the oil reservoir refers to an end close to the piston rod; the inner wall of the air spring base is spaced apart from the outer wall of the oil reservoir, forming a heat dissipation channel leading to the outside through the inner cavity of the air spring base and the expansion end, wherein the design of the expansion end can effectively expand the heat dissipation channel; through the heat dissipation channel, the contact area between the oil reservoir and the outside is greatly increased, the heat dissipation performance of the oil reservoir is improved, and the heat generated during the working process of the oil reservoir is effectively diverted, and the internal heat of the air spring can be further effectively diverted, thereby improving the reliability of the oil reservoir and the air spring, and extending the service life of the air spring.
[0018] It should be understood that the above general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present utility model, and together with the specification, are used to explain the principles of the present utility model. Obviously, the drawings described below are only some embodiments of the present utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0020] Figure 1 A schematic diagram showing the structure of a current air spring;
[0021] Figure 2 A schematic cross-sectional view of a base for an air spring in an embodiment of the utility model is shown;
[0022] Figure 3 A bottom view of the structure of the air spring base in the embodiment of the utility model is shown;
[0023] Figure 4 A schematic cross-sectional structure diagram of an air spring in an embodiment of the utility model is shown. DETAILED DESCRIPTION
[0024] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein. Instead, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.
[0025] In the description of the present utility model, the words "first", "second" and similar words used in the specific description do not indicate any order, quantity or importance, but are only used to distinguish different components. The orientation or position relationship indicated by the terms "front", "rear" and the like is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. The term "plurality" means two or more, unless otherwise clearly and specifically defined. In addition, in the description of the present utility model, when it is said that a device is "connected" to another device, this includes not only the case of direct connection, but also the case of indirect connection through other elements.
[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in different embodiments may be combined with each other.
[0027] Figure 2 The cross-sectional structure of the air spring base in the embodiment of the utility model is shown. Figure 3 The bottom view structure of the air spring base in the embodiment of the utility model is shown. Figure 4 The cross-sectional structure of the air spring in the embodiment of the utility model is shown; Figures 2 to 4 As shown, the air spring base 40 provided in the embodiment of the utility model is sleeved on the outer wall of the oil storage cylinder 10 of the air spring and is connected to the rear end 30b of the air bag 30 of the air spring;
[0028] Among them, the air spring base 40 has a contraction end 40a and an expansion end 40b, the contraction end 40a is close to the front end 10a of the oil storage cylinder 10 and is sealed with the outer wall of the oil storage cylinder 10, and the inner wall of the air spring base 40 is spaced from the outer wall of the oil storage cylinder 10 to form a heat dissipation channel P that leads to the outside through the inner cavity of the air spring base 40 and the expansion end 40b.
[0029] In the above-mentioned air spring base 40, the contraction end 40a is used to be sealed and connected with the outer wall of the oil reservoir 10 and is close to the front end 10a of the oil reservoir 10, wherein the front end 10a of the oil reservoir 10 refers to the end close to the piston rod 20; the inner wall of the air spring base 40 is spaced apart from the outer wall of the oil reservoir 10 to form a heat dissipation channel P leading to the outside through the inner cavity of the air spring base 40 and the expansion end 40b, wherein the design of the expansion end 40b can effectively expand the heat dissipation channel P; through the heat dissipation channel P, the contact area between the oil reservoir 10 and the outside is greatly increased, the heat dissipation performance of the oil reservoir 10 is improved, and the heat generated during the operation of the oil reservoir 10 is effectively diverted, and the internal heat of the air spring can be further effectively diverted, thereby improving the reliability of the oil reservoir 10 and the air spring, and extending the service life of the air spring.
[0030] In some embodiments, the inner wall of the air spring base 40 is provided with a plurality of reinforcing ribs 42 extending along the axial direction "Z" and spaced apart in the circumferential direction "C". The plurality of reinforcing ribs 42 form an assembly space 420 along the circumferential direction "C" that is compatible with the outer wall of the oil storage cylinder 10.
[0031] The reinforcing ribs 42 can simultaneously play a positioning and supporting role without affecting the heat dissipation performance of the oil storage barrel 10. Specifically, the reinforcing ribs 42 extend along the axial direction "Z" and surround an assembly space 420 that matches the outer wall of the oil storage barrel 10 along the circumferential direction "C"; when the air spring base 40 is sleeved on the outer wall of the oil storage barrel 10, the reinforcing ribs 42 can cooperate with the outer wall of the oil storage barrel 10 to play a positioning and supporting role. In addition, the reinforcing ribs 42 are distributed at intervals in the circumferential direction "C" to form heat dissipation channels, which does not affect the heat dissipation performance of the oil storage barrel 10.
[0032] In some embodiments, a support ring 11 is provided at the rear end 10b of the oil reservoir 10, and the support ring 11 abuts against the reinforcing rib 42 extending to the expansion end 40b. Through the support of the support ring 11 and the sealing connection between the contraction end 40a of the air spring base 40 and the outer wall of the oil reservoir 10, a stable connection between the air spring base 40 and the oil reservoir 10 is achieved.
[0033] In some embodiments, the inner wall of the contraction end 40a is provided with a sealing ring groove 44, and the inner wall of the contraction end 40a and the outer wall of the oil storage barrel 10 are sealed and connected via a sealing ring 440 clamped in the sealing ring groove 44. The sealing ring 440 is sealed and matched with the sealing ring groove 44 and the outer wall of the oil storage barrel 10, thereby ensuring the sealed connection between the contraction end 40a and the oil storage barrel 10.
[0034] In some embodiments, the inner wall of the air spring base 40 is provided with a plurality of reinforcing ribs 42 extending along the axial direction "Z", and each reinforcing rib 42 includes two sections located at the axial ends of the sealing ring groove 44. In this way, it is ensured that the entire inner wall of the air spring base 40 is stably matched with the outer wall of the oil storage cylinder 10.
[0035] In some embodiments, the outer wall of the contraction end 40 a is provided with a first clamping ring groove 45 , and the rear end 30 b of the airbag 30 is sleeved on the outer wall of the contraction end 40 a and is clamped and connected by a first clamping ring 450 that clamps the first clamping ring groove 45 .
[0036] Through the clamping fit between the first clamping ring 450 and the first clamping ring groove 45 , the rear end 30 b of the airbag 30 is stably sleeved on the outer wall of the contraction end 40 a .
[0037] In addition, combined Figure 1 and Figure 4As shown, in the current air spring, the end of the airbag 30' is sleeved on the outer wall of the base 40' by a columnar tubular clamp 450', and the columnar tubular clamp 450' needs to be clamped by a clamp, which makes the process complicated. In the utility model, the outer wall of the base 40 of the air spring is provided with a ring-shaped first clamp groove 45 for the ring-shaped first clamp 450 to clamp. The first clamp 450 can automatically locate the first clamp groove 45 and interfere with the clamp when the airbag 30 is inflated, thereby simplifying the process flow.
[0038] Continue to combine Figures 2 to 4 As shown, in some embodiments, the rear end 30b of the airbag 30 is folded and sleeved on the outer wall of the contraction end 40a, and the first collar 450 is wrapped around the folded portion of the airbag 30. In this way, the rear end 30b of the airbag 30, the first collar 450 and the first collar groove 45 are more closely matched.
[0039] In some embodiments, the first collar groove 45 and the sealing ring groove 44 are staggered in the axial direction “Z”. In this way, the structural strength of the contraction end 40 a of the air spring base 40 is ensured.
[0040] The utility model also provides an air spring, combined with Figures 2 to 4 As shown, the air spring includes an oil storage cylinder 10, a piston rod 20 extending into the oil storage cylinder 10 and capable of reciprocating movement, a cover body 50 sleeved on the front end 20a of the piston rod 20, and an air spring base 40 as described in any of the above embodiments; wherein the front end 30a of the airbag 30 is connected to the cover body 50.
[0041] The air spring adopts the above-mentioned air spring base 40, which can effectively guide the heat generated during the working process, thereby improving reliability and service life.
[0042] In some embodiments, the outer wall of the cover body 50 is provided with a second collar groove 52 , and the front end 30 a of the airbag 30 is sleeved on the outer wall of the cover body 50 and is clamped and connected by a second collar 520 that is clamped in the second collar groove 52 .
[0043] The front end 30 a of the airbag 30 is stably sleeved on the outer wall of the cover body 50 by the clamping fit between the second clamping ring 520 and the second clamping ring groove 52 .
[0044] In addition, combined Figure 1 and Figure 4As shown, in the current air spring, the end of the airbag 30' is sleeved on the outer wall of the cover body 50' by a columnar tubular clamping ring 450', and the columnar tubular clamping ring 450' needs to be clamped by a clamp, and the process is cumbersome; the outer wall of the cover body 50 of the air spring of the utility model is provided with a ring-shaped second clamping ring groove 52 for the ring-shaped second clamping ring 520 to clamp, and the second clamping ring 520 can automatically locate the second clamping ring groove 52 and interfere with the clamping when the airbag 30 is inflated, thereby simplifying the process flow.
[0045] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.
Claims
1. A base for an air spring, which is sleeved on the outer wall of the oil storage cylinder of the air spring and is connected to the rear end of the air bag of the air spring; It is characterized in that The air spring base has a contraction end and an expansion end, the contraction end is close to the front end of the oil storage cylinder and is sealed with the outer wall of the oil storage cylinder, the inner wall of the air spring base is spaced apart from the outer wall of the oil storage cylinder, and a heat dissipation channel is formed through the inner cavity of the air spring base and the expansion end to the outside.
2. The air spring base according to claim 1, wherein: The inner wall of the air spring base is provided with a plurality of reinforcing ribs extending in the axial direction and spaced apart in the circumferential direction, and the plurality of reinforcing ribs surround an assembly space along the circumferential direction that matches the outer wall of the oil storage cylinder.
3. The air spring base according to claim 2, wherein: A support ring is provided at the rear end of the oil storage cylinder, and the support ring abuts against the reinforcing rib extending to the expansion end.
4. The air spring base according to claim 1, wherein: The inner wall of the contraction end is provided with a sealing ring groove, and the inner wall of the contraction end and the outer wall of the oil storage cylinder are sealed and connected via a sealing ring clamped in the sealing ring groove.
5. The air spring base according to claim 4, wherein: The inner wall of the air spring base is provided with a plurality of reinforcing ribs extending in the axial direction, and each of the reinforcing ribs includes two sections located at two axial ends of the sealing ring groove.
6. The air spring base according to claim 1, wherein: The outer wall of the contraction end is provided with a first clamping ring groove, and the rear end of the airbag is sleeved on the outer wall of the contraction end and is clamped and connected by a first clamping ring clamping the first clamping ring groove.
7. The air spring base according to claim 6, wherein: The rear end of the airbag is folded in half and sleeved on the outer wall of the contraction end, and the first clamping ring is wrapped around the folded portion of the airbag.
8. The air spring base according to claim 6, wherein: The inner wall of the contraction end is provided with a sealing ring groove, and the first clamping ring groove is staggered with the sealing ring groove in the axial direction.
9. An air spring, comprising an oil storage cylinder, a piston rod extending into the oil storage cylinder and capable of reciprocating movement, and a cover body sleeved on the front end of the piston rod; It is characterized in that The air spring further comprises a base for an air spring as claimed in any one of claims 1 to 8; Wherein, the front end of the airbag is connected to the cover body.
10. The air spring according to claim 9, characterized in that The outer wall of the cover body is provided with a second clamping ring groove, and the front end of the airbag is sleeved on the outer wall of the cover body and is clamped and connected by a second clamping ring clamping the second clamping ring groove.