CN210344128U

CN210344128U - Steel plate spring assembly

Info

Publication number: CN210344128U
Application number: CN201920610266.6U
Authority: CN
Inventors: 曾小女; 王远青; 张�杰; 熊默根; 张星星
Original assignee: Jiangxi Yuncheng Automobile Parts Co ltd
Current assignee: Jiangxi Yuncheng Automobile Parts Co ltd
Priority date: 2019-04-29
Filing date: 2019-04-29
Publication date: 2020-04-17
Anticipated expiration: 2029-04-29

Abstract

The utility model provides a leaf spring assembly, connect axle and frame, be used for transmitting the frame with power and moment between the axle, play direction and cushioning effect, including the leaf spring to and still include at least one package and protect the subassembly, the tip of leaf spring forms the bending portion, the package protects the subassembly parcel the bending portion, the package protects the subassembly and includes end pad cover, rubber sleeve and two laminating pieces, the upper surface and the lower surface of leaf spring tip paste respectively and establish one the laminating piece, the rubber sleeve wraps up the laminating piece, the end pad cover is established on the surface of rubber sleeve; the steel plate spring assembly is simple in structure, long in service life and capable of avoiding early fracture of the steel plate spring.

Description

Steel plate spring assembly

Technical Field

The utility model relates to an automobile damping technical field especially relates to a leaf spring assembly.

Background

In the driving process of the automobile, when the automobile runs over an uneven road surface, the whole automobile bumps, and the automobile can vibrate up and down to generate impact in the bumping process, so in order to reduce the impact, a suspension system for buffering is required to be arranged on the automobile, wherein a steel plate spring assembly of the automobile is a main buffering element.

In the prior art, the leaf spring assembly is formed by overlapping a plurality of leaf springs with different lengths, and two ends of the leaf spring assembly generally adopt a lug rolling structure, however, along with the continuous vibration of an automobile in the driving process, the lug rolling position of the leaf spring assembly can bear a quite large load, and the lug rolling position is very easy to break, so that the leaf spring assembly is easy to break, the service life of the leaf spring assembly is influenced, and the use requirement of the leaf spring assembly cannot be effectively met.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model discloses an aim at provides a long-lived leaf spring assembly. The problem that the service life of a steel plate spring assembly is influenced due to the fact that a rolling lug structure is easy to break in the prior art is solved.

The utility model provides a leaf spring assembly, leaf spring assembly includes the leaf spring to and still include that at least one package protects the subassembly, the tip of leaf spring forms the portion of buckling, the package protects the subassembly parcel the portion of buckling, the package protects the subassembly and includes end pad cover, rubber sleeve and two laminating pieces, the upper surface and the lower surface of leaf spring tip paste respectively and establish one laminating piece, the rubber sleeve parcel laminating piece, the end pad cover is established on the surface of rubber sleeve.

The utility model provides a leaf spring assembly, the tip of leaf spring forms the bending portion, protects the subassembly through setting up at least one package, so that the package protects the subassembly parcel the bending portion, the package protects the subassembly and includes end pad cover, rubber sleeve and two laminating pieces, the rubber sleeve is as the location and the biography power part of leaf spring assembly, in order to reduce leaf spring assembly's transverse torsion stress and reduce its horizontal angular stiffness, the end pad cover is in order to protect the rubber sleeve and be used for with leaf spring assembly fixes on the car, laminating piece is used for protecting the rubber sleeve, in order to prevent the rubber sleeve wearing and tearing; the steel plate spring assembly is simple in structure, early fracture of the steel plate spring is avoided, and the service life of the steel plate spring assembly is prolonged.

Further, the rubber sleeve comprises a first horizontal portion, a second horizontal portion and a vertical portion connected with the first horizontal portion and the second horizontal portion, the first horizontal portion is attached to the top of the attaching piece on the upper surface of the plate spring, and the second horizontal portion is attached to the bottom of the attaching piece on the lower surface of the plate spring.

Further, the rubber sleeve is U-shaped.

Further, the end pad cover comprises an upper end cushion block and a lower end cushion block which are connected in sequence, the upper end cushion block is arranged on the upper surface of the first horizontal portion, and the lower end cushion block is arranged on the lower surface of the second horizontal portion.

Further, the top of upper end cushion outwards protrudes and forms two connecting portions, the leaf spring assembly passes through connecting portion are fixed in on the automobile body.

Further, the leaf spring is formed by eight spring leafs with consistent width and uniform thickness, and eight the length of spring leaf reduces from top to bottom in proper order, is located two on the leaf spring upper strata the tip of spring leaf all is bent to form the bending portion.

Further, the leaf spring is formed by eight spring leafs with consistent width and inconsistent thickness, and eight the length of spring leaf reduces from top to bottom in proper order, is located two on the leaf spring upper strata the tip of spring leaf all is bent to form the bending portion.

Furthermore, the laminating piece comprises a first fixing part and a second fixing part which are sequentially connected, the first fixing part is U-shaped, and the first fixing part and the second fixing part are attached to the bending part.

Further, the both sides at leaf spring center all are equipped with the clamp, the clamp will five on the upper strata of leaf spring the spring leaf is fixed, be equipped with the liner on the inner wall of clamp.

Furthermore, the package protects the subassembly and is equipped with two, two the package protects the subassembly and locates respectively the both ends of leaf spring.

Drawings

Fig. 1 is a schematic structural diagram of a leaf spring assembly according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of the leaf spring of FIG. 1;

FIG. 3 is a schematic structural view of the sheathing assembly of FIG. 1;

FIG. 4 is a cross-sectional view taken along the line A-A in FIG. 1;

fig. 5 is a schematic structural view of the bonding sheet in fig. 1.

Description of the main element symbols:

plate spring	10	Spring leaf	11
				Press bending part	111	Bolt	12
Clamp hoop	13	Clamp bolt	131
				Clamp sleeve	132	Clamp rivet	133
Liner pad	134	Bag protection assembly	20
				Adhesive sheet	21	First fixed part	211
Second fixed part	212	Rubber sleeve	22
				The first horizontal part	221	Vertical part	222
Second horizontal part	223	End pad sleeve	23
				Upper end cushion block	231	Lower end cushion block	232
Connecting part	233

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 5, an embodiment of the present invention provides a leaf spring assembly including a leaf spring 10 and two sheathing members 20.

Leaf spring 10 includes spring leaf 11, bolt 12 and clamp 13, specifically, leaf spring 10 can be unanimous by eight widths, and the even unanimous spring leaf 11 stack of thickness forms, and eight the length of spring leaf 11 down reduces in proper order from last, is located two on leaf spring 10 upper strata the tip of spring leaf 11 all is buckled to form bending portion 111, just bending portion 111 is by the tip of two spring leaves 11 is buckled to relative direction and is extended and form, the middle part of leaf spring 10 is passed through bolt 12 is fixed.

In other embodiments, the plate spring 10 may further be formed by stacking eight spring strips 11 with the same width and different thicknesses, the lengths of the eight spring strips 11 decrease from top to bottom, ends of two spring strips on an upper layer of the plate spring 11 are bent to form the bent portion 111, meanwhile, the number of the spring strips 11 is not limited to eight, and in other embodiments, the number of the spring strips 11 may also be increased or decreased according to actual requirements.

In this embodiment, the bending portion 111 is formed by bending the ends of the two spring pieces 11, in other embodiments, the bending portion 111 may also be formed by bending the ends of three spring pieces 11 on the upper layer of the plate spring 10, and the bending portion 111 is to better enable the sheathing member 20 to be sleeved on the two ends of the plate spring 10, so that how to arrange may be set according to actual conditions.

The two hoops 13 are arranged, the two hoops 13 are respectively arranged on two sides of the bolt 12, and the five spring pieces 11 on the upper layer of the plate spring 10 are fixed by the hoops 13, so that the plate spring 10 plays a better vibration damping role.

In this embodiment, the two clips 13 are provided, but it is understood that the clips 13 are not limited to two clips 13, in other embodiments, the clips 13 may be provided with one or more clips 13, and the clips 13 are not necessarily fixed to only five spring strips 11, in other embodiments, the clips 13 may also fix four, six or other spring strips 11 on the upper layer of the plate spring 10, but the final purpose is to fix the plate spring 10 so that the spring strips 11 are not loose, thereby achieving a better damping effect.

In addition, the clip 13 is provided with a clip bolt 131, a clip sleeve 132, a clip rivet 133, and a gasket 134.

The clamp bolt 131 is used for with the clamp 13 is fixed on the leaf spring 10, prevents the clamp 13 drops, the clamp sleeve 132 cover is established on the clamp bolt 131, can be used for reducing the friction between clamp bolt 131 and the spring leaf 11, the bottom and the fifth of clamp 13 the bottom of spring leaf 11 all is equipped with a through-hole, clamp rivet 133 passes through the through-hole will the clamp 13 with the leaf spring 10 is fixed in together.

The number of the pads 134 is two, the two pads are respectively placed on two inner sides of the clamp 13, and the pads 134 may be used to reduce friction between the spring plate 11 and the clamp 13, so as to protect the spring plate 11, and reduce noise.

The two protecting components 20 are respectively sleeved at two ends of the plate spring 10, and each protecting component 20 comprises a fitting sheet 21, a rubber sleeve 22 and an end gasket sleeve 23.

The quantity of laminating piece 21 is two, two laminating piece 21 pastes respectively and establishes the upper surface and the lower surface of bending portion 111, and through rivet welded fastening respectively on leaf spring 10, laminating piece 21 is including the first fixed part 211 and the second fixed part 212 that connect gradually, first fixed part 211 is the type of falling U, first fixed part 211 with second fixed part 212 passes through rivet welded fastening and is in on the leaf spring 10 to paste and lean on in bending portion 111.

The fitting piece 21 is for preventing the rubber sleeve 22 from being worn, and the automobile can vibrate up and down when encountering an uneven road surface, so that a certain impact force is generated, if the fitting piece 21 is not provided, the bent portion 111 is directly contacted with the rubber sleeve 22, and the rubber sleeve 22 is worn after a certain time, so that the service life of the steel plate spring assembly is influenced, the fitting piece 21 is attached to the upper surface and the lower surface of the bent portion 111, and in addition, the first fixing portion 211 is in an inverted U shape, so that the rubber sleeve 22 is better prevented from being worn.

The rubber sleeve 22 is sleeved on the end of the plate spring 10, and the fitting piece 21 is sleeved inside the rubber sleeve 22, and the rubber sleeve 22 includes a first horizontal portion 221, a vertical portion 222 and a second horizontal portion 223.

The first horizontal part 221 is attached to the top of the attaching piece 21 on the upper surface of the plate spring 10, the second horizontal part 223 is attached to the bottom of the attaching piece 21 on the lower surface of the plate spring 10, the first horizontal part 221 and the second horizontal part 223 are connected through the vertical part 222, so that the rubber sleeve is U-shaped and wraps the end of the plate spring 10, the rubber sleeve 22 can be used as a positioning and force-transmitting part of the plate spring 10, the transverse torsion stress of the plate spring assembly can be reduced, the transverse angular stiffness of the plate spring assembly is reduced, the early fracture of the plate spring assembly can be further avoided, and the service life of the plate spring assembly is prolonged.

The end cover 23 cover is located the surface of rubber sleeve 22, the end cover 23 is including the upper end cushion 231 and the lower extreme cushion 232 that connect gradually, upper end cushion 231 sets up the upper surface of first horizontal part 221, the outside arch in top of upper end cushion 231 forms two connecting portion 233, the leaf spring assembly passes through connecting portion 233 is fixed in on the automobile body, lower extreme cushion 232 sets up second horizontal part 223 lower surface, the end cover 23 is used for fixing the rubber sleeve, and be used for with the leaf spring assembly is fixed on the automobile body.

In addition, the steel plate spring assembly is designed into a middle straight section, so that the loading is convenient and the clamping is convenient, the early fracture of the steel plate spring is avoided, and the service life of the product is prolonged.

To sum up, the leaf spring assembly of the present invention, the end of the leaf spring forms a bending portion, and the bending portion is wrapped by at least one wrapping component, the wrapping component includes a rubber sleeve, an end cushion sleeve and two attaching pieces, the rubber sleeve is used as a positioning and force transferring part of the leaf spring assembly to reduce the transverse torsion stress of the leaf spring assembly and reduce the transverse angular stiffness thereof, the end cushion sleeve is used for protecting the rubber sleeve and fixing the leaf spring assembly on the automobile, and the attaching pieces are used for protecting the rubber sleeve to prevent the rubber sleeve from being worn; the hoops are arranged on two sides close to the middle of the plate spring, and the inner walls of the hoops are provided with the gaskets, so that the gaskets can reduce friction between the spring piece and the hoops and reduce noise; the steel plate spring assembly is simple in structure, early fracture of the steel plate spring is avoided, and the service life of the steel plate spring assembly is prolonged.

The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a leaf spring assembly, connects axle and frame, is used for the transmission the frame with power and moment between the axle play direction and cushioning effect, a serial communication port, leaf spring assembly includes the leaf spring to and still include that at least one package protects the subassembly, the tip of leaf spring forms the portion of buckling, the package protects the subassembly parcel the portion of buckling, the package protects the subassembly and includes end pad cover, rubber sleeve and two laminating pieces, the upper surface and the lower surface of portion of buckling paste respectively and establish one the laminating piece, the rubber sleeve parcel laminating piece, the end pad cover is established on the surface of rubber sleeve.

2. The leaf spring assembly of claim 1, wherein the rubber boot includes a first horizontal portion, a second horizontal portion, and a vertical portion connecting the first horizontal portion and the second horizontal portion, the first horizontal portion abutting against a top portion of the engagement tab on the upper surface of the leaf spring, and the second horizontal portion abutting against a bottom portion of the engagement tab on the lower surface of the leaf spring.

3. The leaf spring assembly of claim 2, wherein the rubber boot is U-shaped.

4. The leaf spring assembly of claim 2, wherein the end pad cover includes an upper end pad and a lower end pad connected in series, the upper end pad being disposed on an upper surface of the first horizontal portion and the lower end pad being disposed on a lower surface of the second horizontal portion.

5. The leaf spring assembly of claim 4, wherein the top of the upper end pad is outwardly convex to form two connecting portions through which the leaf spring assembly is secured to the vehicle body.

6. The leaf spring assembly according to claim 1, wherein the leaf spring is formed by stacking eight leaf springs having uniform width and uniform thickness, and the length of the eight leaf springs decreases from top to bottom, and the ends of two leaf springs located on the upper layer of the leaf spring are bent to form the bent portions.

7. The leaf spring assembly according to claim 1, wherein the leaf spring is formed by stacking eight leaf springs having uniform width and non-uniform thickness, and the length of the eight leaf springs decreases from top to bottom, and the ends of two leaf springs located on the upper layer of the leaf spring are bent to form the bent portions.

8. The leaf spring assembly of claim 1, wherein the attachment tab includes a first fastening portion and a second fastening portion connected in series, the first fastening portion is of an inverted U shape, and the first fastening portion and the second fastening portion are both attached to the bent portion.

9. The leaf spring assembly of claim 6, wherein the plate spring has a clamp on both sides of the center thereof, the clamp fixing the five spring leaves on the upper layer of the plate spring, and a pad is provided on the inner wall of the clamp.

10. The leaf spring assembly according to claim 1, wherein there are two of the protecting members, and the two protecting members are respectively sleeved on two ends of the leaf spring.