CN217558862U

CN217558862U - Composite spring pad, vehicle spring damping assembly and vehicle

Info

Publication number: CN217558862U
Application number: CN202221647151.2U
Authority: CN
Inventors: 贾跃; 王德岭; 丁树伟
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2022-10-11
Anticipated expiration: 2032-06-28

Abstract

The utility model relates to the technical field of vehicles, especially, relate to a compound spring pad, vehicle spring shock attenuation assembly and vehicle. Wherein, compound spring pad includes wear-resisting support piece and elastic buffer, and wear-resisting support piece includes annular base member and the spacing protrusion of inner ring, and the inner circle department on annular base member is established to the spacing protrusion ring of inner ring, and the spacing protrusion of inner ring can be with the first end joint of spring. The wear-resisting support piece is made of TPU, so that better wear resistance and strength can be ensured, and unrecoverable spring traces can be prevented from being left on the wear-resisting support piece. The elastic buffer part is provided with a central through hole, the elastic buffer part is made of polyurethane, and the elastic buffer part is connected to the side face, which is not contacted with the spring, of the wear-resistant supporting part. It can be appreciated that the elastomeric cushioning member has a better resiliency, partially absorbing the movement of the wear support member to ensure the overall shock absorbing capacity of the composite spring pad.

Description

Composite spring pad, vehicle spring damping assembly and vehicle

Technical Field

The utility model relates to the technical field of vehicles, especially, relate to a compound spring pad, vehicle spring shock attenuation assembly and vehicle.

Background

The spring pad is arranged between the spring and the vehicle body and used for isolating vibration, absorbing vibration from the spring and ensuring the shock absorption capacity of the vehicle. The spring pad with good elasticity has strong damping capacity, but often has poor durability, and after the spring pad is used for a period of time, the spring pad is easy to cause the spring mark which can not rebound, so that the damping capacity is reduced. The spring pad with high hardness is not easy to cause non-resilient spring marks, but the elasticity of the spring pad is low, so that the shock absorption requirement of a vehicle cannot be met.

Therefore, a composite spring washer, a vehicle spring damping assembly and a vehicle are needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compound spring pad possesses better shock-absorbing capacity and durability simultaneously.

To achieve the purpose, the utility model adopts the following technical proposal:

a composite spring mattress comprising:

the wear-resistant support piece comprises an annular base body and an inner ring limiting protrusion, the inner ring limiting protrusion is arranged at an inner ring on the annular base body, the inner ring limiting protrusion can be clamped with the first end of the spring, and the wear-resistant support piece is made of TPU;

the elastic buffer part is provided with a central through hole, the elastic buffer part is made of polyurethane, and the elastic buffer part is connected to the side face of the spring, which is not contacted with the wear-resistant supporting part.

As the preferred scheme of a compound spring pad, the spacing protrusion of inner ring includes at least two first joint teeth, first joint tooth is followed the axial extension of cyclic annular base member, be provided with the joint bulge on the first joint tooth, the joint bulge is followed the radial of cyclic annular base member, the orientation is kept away from cyclic annular base member center protrusion sets up, the joint bulge be used for with first end joint, at least two first joint tooth interval sets up.

As a preferred scheme of compound spring pad, the spacing protrusion of inner ring still includes a plurality of second joint teeth, second joint tooth is followed the axial extension of cyclic annular base member, second joint tooth is used for restricting first end is relative the orbit of the coaxial rotation of cyclic annular base member.

As a preferred scheme of the composite spring pad, A first clamping teeth and B second clamping teeth are alternately and uniformly arranged at intervals, and A and B are positive integers larger than 1.

As a preferred scheme of compound spring pad, B/2 second joint tooth, A first joint tooth and B/2 second joint tooth set gradually and form a set of joint tooth group, N group the spacing protrusion of inner ring is followed the circumference interval of cyclic annular base member evenly sets up, and B is the even number.

As the preferred scheme of a compound spring pad, every group joint tooth group contains the connection base member, connect the base member and be used for connecting this a set of first joint tooth with the second joint tooth is close to the part at cyclic annular base member center, and is a plurality of joint tooth group connect the base member interval and set up.

As a preferable solution of the composite spring pad, the wear-resistant supporting member further includes an outer ring limiting protrusion, and the outer ring limiting protrusion is disposed at an outer ring of the annular base and is used for limiting the first end to move in a radial direction relative to the annular base.

As a preferable scheme of the composite spring cushion, the outer ring limiting bulge comprises a plurality of outer ring bulges which are arranged at intervals.

As a preferable scheme of the composite spring pad, a plurality of clearance grooves are arranged at intervals along the circumferential direction of the inner ring of the elastic buffer piece.

As a preferred scheme of the composite spring pad, the wear-resistant supporting piece and the elastic buffer piece are integrally formed in an injection molding mode.

Another object of the utility model is to provide a vehicle spring shock attenuation assembly possesses stronger shock-absorbing capacity and durability.

a vehicle spring shock absorption assembly comprises a spring and the composite spring pad.

Yet another object of the present invention is to provide a vehicle, wherein the vehicle spring damping assembly has strong damping capacity and durability.

a vehicle comprises the vehicle spring shock absorption assembly.

The utility model has the advantages that:

the utility model provides a composite spring pad, including wear-resisting support piece and elastic buffer. Wherein, wear-resisting support piece includes cyclic annular base member and the spacing protrusion of inner ring, and the inner circle department on cyclic annular base member is established to the spacing protrusion ring of inner ring, and the spacing protrusion of inner ring can with the first end joint of spring. The wear-resisting support piece is made of TPU, so that better wear resistance and strength can be ensured, and unrecoverable spring traces can be prevented from being left on the wear-resisting support piece. The elastic buffer part is provided with a central through hole, the elastic buffer part is made of polyurethane, and the elastic buffer part is connected to the side face, which is not contacted with the spring, of the wear-resistant supporting part. It is known that polyurethane has a better elasticity, and can partially absorb the movement of the wear-resistant support member to ensure the overall shock-absorbing capacity of the composite spring pad.

The utility model also provides a vehicle spring shock attenuation assembly, including spring and foretell composite spring pad, it possesses stronger shock-absorbing capacity and durability.

The utility model also provides a vehicle, including foretell vehicle spring shock attenuation assembly, the vehicle spring shock attenuation assembly of this vehicle possesses stronger shock-absorbing capacity and durability, and the cost of maintenance of vehicle is lower, and shock-absorbing capacity is stronger, can improve user's driving experience.

Drawings

Fig. 1 is a schematic diagram of a composite spring mattress according to an embodiment of the present invention at a first view angle;

fig. 2 is a schematic diagram of a composite spring mattress according to an embodiment of the present invention at a second viewing angle;

fig. 3 is a schematic diagram illustrating a third perspective view of a composite spring mattress according to an embodiment of the present invention;

fig. 4 is an assembly schematic diagram of a vehicle body and a vehicle spring damping assembly according to an embodiment of the present invention.

In the figure:

1. a vehicle body;

2. a composite spring pad; 21. a wear-resistant support; 211. an annular substrate; 212. the inner ring is limited and protruded; 2121. a first snap tooth; 21211. clamping the convex part; 2122. a second snap tooth; 2123. connecting the substrates; 213. the outer ring is limited and protruded; 2131. an outer ring projection; 22. an elastic buffer member; 221. a clearance groove;

3. a spring.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The spring pad with good elasticity has strong damping capacity, but often has poor durability, and after the spring pad is used for a period of time, the spring pad is easy to cause the spring mark which can not rebound, so that the damping capacity is reduced. The spring pad with high hardness is not easy to cause an irreversible spring mark, but has low elasticity, and cannot meet the damping requirement of a vehicle.

Accordingly, the present embodiment provides a composite spring mattress 2 to solve the above-mentioned problems.

As shown in fig. 1-3, the composite spring pad 2 includes a wear support 21 and a resilient cushion 22. The wear-resistant support 21 includes an annular base 211 and an inner ring limiting protrusion 212, the inner ring limiting protrusion 212 is annularly disposed at an inner ring of the annular base 211, and the inner ring limiting protrusion 212 can be clamped with the first end of the spring 3. The wear-resistant support member 21 is made of TPU, so that better wear resistance and strength can be ensured, and the trace of the unrecoverable spring 3 left on the wear-resistant support member 21 is avoided. The elastic buffer 22 is provided with a central through hole, the material of the elastic buffer 22 is polyurethane, and the elastic buffer 22 is connected to the side surface of the wear-resistant supporting member 21 which is not contacted with the spring 3. It will be appreciated that the elastomeric cushioning member 22 has a relatively good resiliency and partially absorbs the movement of the wear support 21 to ensure the overall cushioning capacity of the composite spring washer 2.

In order to clamp the spring 3 by the composite spring washer 2, and ensure that the spring 3 does not disengage during the assembly process, as shown in fig. 3, it is preferable that the inner ring limiting protrusion 212 includes at least two first clamping teeth 2121, the first clamping teeth 2121 extend along the axial direction of the annular base 211 to limit the relative movement of the spring 3 in the radial direction, a clamping protrusion 21211 is provided on the first clamping teeth 2121, the clamping protrusion 21211 protrudes along the radial direction of the annular base 211 and is towards the center far away from the annular base 211, the clamping protrusion 21211 is used for clamping the first end of the spring 3, and at least two first clamping teeth 2121 are arranged at intervals. It can be known that, in order to realize the clamping between the clamping protrusion 21211 and the first end of the spring 3, if two first clamping teeth 2121 are provided, two first clamping teeth 2121 are disposed oppositely along the radial direction, and if more than two first clamping teeth 2121 are provided, the polygon formed by the plurality of first clamping teeth 2121 should include the center of the annular base 211, so as to prevent the spring 3 from being separated from the composite spring pad 2.

Preferably, the inner ring limiting protrusion 212 further comprises a plurality of second snap teeth 2122, the second snap teeth 2122 extend along the axial direction of the annular base 211, and the second snap teeth 2122 are used for limiting the track of the coaxial rotation of the first end of the spring 3 relative to the annular base 211.

Preferably, a first clamping teeth 2121 and B second clamping teeth 2122 are alternately and uniformly arranged at intervals, and a and B are positive integers greater than 1. That is, the ring formed by the first clamping tooth 2121 and the second clamping tooth 2122 extends into the first end of the spring 3, the first end of the spring 3 can only rotate along the ring, and the first clamping tooth 2121 is provided with the clamping protrusion 21211, so that the first end of the spring 3 can be further prevented from being separated from the composite spring pad 2 along the axial direction of the spring 3. If a projection is also provided on the second click tooth 2122, the difficulty of assembling the spring 3 to the composite spring washer 2 increases.

Preferably, B/2 second clamping teeth 2122, A first clamping teeth 2121 and B/2 second clamping teeth 2122 are sequentially arranged to form a group of clamping teeth, N groups of inner ring limiting protrusions 212 are uniformly arranged along the circumferential direction of the annular base 211 at intervals, and B is an even number. In this embodiment, a is 2,B and 4,N is 6, that is, two second engaging teeth 2122, two first engaging teeth 2121 and two second engaging teeth 2122 are sequentially disposed to form a group of engaging teeth, and the 6 groups of inner ring limiting protrusions 212 are uniformly disposed along the circumferential direction of the annular base 211 at intervals. Of course, in other embodiments, the A, B, N may be set to different values according to different parameters, such as the stress and the size of the composite spring pad 2.

To further reduce the difficulty of assembly, each set of snap tooth sets preferably includes a connecting base 2123, the connecting base 2123 is used for connecting the first and

second snap teeth

2121 and 2122 of the set near the center of the ring-shaped base 211, and the connecting bases 2123 of a plurality of snap tooth sets are spaced apart. A plurality of joint tooth groups that the interval set up all have better elastic deformation ability, and the tip of keeping away from elastic buffer 22 can remove to reduce the assembly degree of difficulty.

In order to reduce the force applied when the first end of the spring 3 has a tendency to move in the radial direction, a portion of the first and second retaining

teeth

2121 and 2122 will be stressed more, and the wear-resistant support 21 preferably further includes an outer ring limiting protrusion 213, and the outer ring limiting protrusion 213 is annularly arranged at the outer ring of the annular base 211 to further limit the first end of the spring 3 from moving in the radial direction relative to the annular base 211, and can bear a portion of the stress when the first end of the spring 3 has a tendency to move in the radial direction. Preferably, outer ring stop projection 213 includes a plurality of spaced apart outer ring projections 2131.

Preferably, the surface of the outer ring stopper protrusion 213 contacting the spring 3 is a curved surface to increase the contact area with the spring 3, and similarly, the surface of the inner ring stopper protrusion 212 contacting the spring 3 is also a curved surface.

Preferably, the inner ring of the elastic buffer 22 is provided with a plurality of clearance grooves 221 at intervals in the circumferential direction to form a plurality of elastic buffer lobes. Since the elastic buffer 22 is used to connect the vehicle body 1, the elastic buffer flaps will deform with the vehicle body 1 during assembly with the vehicle body 1 and will fit tightly between the wear support 21 and the vehicle body 1.

Preferably, the wear-resistant supporting member 21 and the elastic buffer 22 are integrally injection-molded to ensure the connection strength therebetween.

As shown in FIG. 4, the present embodiment also provides a vehicle spring damping assembly, which includes a spring 3 and the composite spring pad 2, and has a strong damping capacity and durability.

The embodiment also provides a vehicle, including foretell vehicle spring shock attenuation assembly, the vehicle spring shock attenuation assembly of this vehicle possesses stronger shock-absorbing capacity and durability, and the cost of maintenance of vehicle is lower, and shock-absorbing capacity is stronger, can improve user's driving experience.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A composite spring mattress, comprising:

the wear-resistant support piece (21) comprises an annular base body (211) and an inner ring limiting protrusion (212), the inner ring limiting protrusion (212) is annularly arranged at an inner ring of the annular base body (211), the inner ring limiting protrusion (212) can be clamped with a first end of a spring (3), and the wear-resistant support piece (21) is made of TPU;

elastic buffer member (22), elastic buffer member (22) are provided with central through-hole, the material of elastic buffer member (22) is polyurethane, elastic buffer member (22) connect in wear-resisting support piece (21) does not contact the side of spring (3).

2. The composite spring washer of claim 1, wherein the inner ring limiting protrusion (212) includes at least two first engaging teeth (2121), the first engaging teeth (2121) extend along an axial direction of the annular base (211), a engaging protrusion (21211) is disposed on the first engaging teeth (2121), the engaging protrusion (21211) protrudes toward a center of the annular base (211) along a radial direction of the annular base (211), the engaging protrusion (21211) is configured to engage with the first end, and at least two of the first engaging teeth (2121) are spaced apart from each other.

3. The composite spring washer of claim 2, wherein the inner ring retainer projection (212) further comprises a plurality of second snap teeth (2122), the second snap teeth (2122) extending axially of the annular base (211), the second snap teeth (2122) configured to limit a trajectory of coaxial rotation of the first end relative to the annular base (211).

4. The composite spring washer of claim 3, wherein A of the first snap teeth (2121) are evenly spaced from B of the second snap teeth (2122), and both A and B are positive integers greater than 1.

5. The composite spring washer of claim 4, wherein B/2 of the second snap teeth (2122), A of the first snap teeth (2121), and B/2 of the second snap teeth (2122) are sequentially arranged to form a set of snap tooth sets, N sets of the inner ring limiting protrusions (212) are uniformly arranged along the circumferential direction of the annular base body (211) at intervals, and B is an even number.

6. The composite spring washer of claim 5, wherein each of the plurality of snap tooth sets includes a connecting base (2123), the connecting base (2123) is configured to connect portions of the first snap tooth (2121) and the second snap tooth (2122) of the one of the plurality of snap tooth sets that are adjacent to a center of the ring-shaped base (211), and the connecting bases (2123) of the plurality of snap tooth sets are spaced apart.

7. The composite spring washer of claim 1, wherein the wear support (21) further comprises an outer ring limit protrusion (213), the outer ring limit protrusion (213) being annularly disposed at an outer ring of the annular base (211) for limiting radial movement of the first end relative to the annular base (211).

8. The composite spring mattress of claim 7, wherein the outer ring retention tab (213) includes a plurality of spaced apart outer ring tabs (2131).

9. The composite spring washer of claim 1, wherein the inner ring of the elastomeric cushion (22) is circumferentially spaced with a plurality of clearance grooves (221).

10. The composite spring mattress of claim 1, wherein said wear support (21) is injection molded integrally with said elastomeric cushion (22).

11. A vehicle spring shock assembly, characterized by comprising a spring (3) and a composite spring pad according to any one of claims 1-10.

12. A vehicle comprising the vehicle spring damper assembly of claim 11.