CN210554005U

CN210554005U - Leaf spring installation assembly and vehicle

Info

Publication number: CN210554005U
Application number: CN201921122562.8U
Authority: CN
Inventors: 吴铁锋; 徐锦; 朱清乐; 袁万贵
Original assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely New Energy Commercial Vehicle Group Co Ltd; Geely Sichuan Commercial Vehicle Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely New Energy Commercial Vehicle Group Co Ltd; Geely Sichuan Commercial Vehicle Co Ltd; Zhejiang Remote Commercial Vehicle R&D Co Ltd
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-05-19
Anticipated expiration: 2029-07-17

Abstract

The utility model provides a leaf spring installation assembly and vehicle relates to the vehicle field. The leaf spring installation assembly comprises a leaf spring, a bracket arranged on the vehicle body and a fastener. Leaf spring one end is provided with the book ear, and the support is injectd between two lateral walls including two lateral walls that set up relatively and is used for holding the accommodation space of book ear, and two lateral walls all are equipped with the through-hole along the axial direction of book ear. The fastener is used for being fixed in the accommodation space with the eye-curling and runs through a lateral wall of support, eye-curling and another lateral wall of support in proper order along the axial direction of eye-curling. The through holes are internally provided with shaft sleeves which are sleeved on the fasteners and used for fixing the rolling lugs in the accommodating spaces of the support so as to limit the rolling lugs to move along the axial direction of the rolling lugs. The utility model discloses reduce the leaf spring when the vehicle operation with the collision of fixed bolster lateral wall, consequently reduced the wearing and tearing of leaf spring, further improved the life of leaf spring.

Description

Leaf spring installation assembly and vehicle

Technical Field

The utility model relates to a vehicle field especially relates to a leaf spring installation assembly and vehicle.

Background

The leaf spring in the suspension system of the automobile is a bearing element and a damping element, and needs to bear the impact force of the ground to the automobile. The leaf spring is connected with the fixed bolster in the vehicle, and the width that the fixed bolster is used for the open slot of installation leaf spring among the prior art is greater than the thickness of leaf spring, makes things convenient for the installation of leaf spring. The leaf spring can collide with the fixed bolster in the operation of vehicle between the process, and long-time collision can lead to the wearing and tearing of fixed bolster and leaf spring.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a leaf spring installation assembly, solve the serious problem of leaf spring wearing and tearing.

The utility model discloses a further aim at of first aspect is to reduce the cost of changing the bush.

The utility model discloses the purpose of second aspect provides a vehicle.

According to the utility model discloses an aspect, the utility model provides a leaf spring installation assembly, include:

a leaf spring, one end of which is provided with a rolling lug;

the support is arranged on the vehicle body and comprises two side walls which are oppositely arranged, an accommodating space for accommodating the rolling lug is defined between the two side walls, and through holes are formed in the two side walls along the axial direction of the rolling lug;

the fastening piece is used for fixing the rolling lug in the accommodating space and sequentially penetrates through one side wall of the bracket, the rolling lug and the other side wall of the bracket along the axial direction of the rolling lug;

a shaft sleeve is arranged in at least one through hole, the shaft sleeve is provided with two opposite ends along the axial direction of the shaft sleeve, one end of the shaft sleeve is contacted with the rolling lug, and the other end of the shaft sleeve is contacted with the fastening piece;

the shaft sleeve is sleeved on the fastener and used for fixing the rolling lug in the accommodating space of the bracket so as to limit the rolling lug to move along the axial direction of the rolling lug.

Optionally, the width of the shaft sleeve along the axial direction of the shaft sleeve is larger than the length of the corresponding through hole.

Optionally, the method further comprises:

a bushing embedded in the eye, the fastener extending through the bushing.

Optionally, the bushing is a rubber-metal composite bushing, and the bushing comprises a metal layer and a rubber layer which are arranged at intervals along the radial direction of the bushing;

the metal layers comprise a first metal layer and a second metal layer;

the rubber layers include a first rubber layer and a second rubber layer.

Optionally, the bushing further includes an inner frame and an outer frame, and the first metal layer, the first rubber layer, the second metal layer, and the second rubber layer are sequentially disposed between the inner frame and the outer frame;

the first metal layer is close to the inner framework, and the second rubber layer is close to the outer framework.

Optionally, the bushing is provided with a groove extending in an axial direction of the bushing.

Optionally, the width of the groove gradually decreases in a direction from the outer wall of the bushing to the center of the bushing.

Optionally, the fastener comprises a bolt and a nut.

Optionally, the boss is embedded in a through hole adjacent the head of the bolt.

According to the utility model discloses a second aspect, the utility model discloses still provide a vehicle, the vehicle mounting have leaf spring installation assembly.

The utility model discloses embedded axle sleeve in the through-hole of the outer wall of fixed bolster, be used for with the book ear is fixed in the accommodation space of support is in order to restrict the book ear along its axial direction motion, reduced the leaf spring when the vehicle operation with the collision of fixed bolster lateral wall has consequently reduced the wearing and tearing of leaf spring, has further improved the life of leaf spring.

The utility model discloses in adopt rubber metal composite bush, utilize rubber to replace and add emollient in to the bush, avoided the bush wearing and tearing, practiced thrift the cost of frequently changing the bush. In addition, after the shaft sleeve is axially worn, the shaft sleeve is fixed again only by screwing the nut again, and the shaft sleeve is more convenient.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic view of the position of a leaf spring mounted with a vehicle according to one embodiment of the invention;

FIG. 2 is a schematic block diagram of a leaf spring mounting assembly according to one embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a bushing member of the leaf spring mounting assembly of FIG. 2;

3 fig. 34 3 is 3 a 3 schematic 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 a 3 sectional 3 line 3 a 3- 3 a 3 in 3 fig. 33 3. 3

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary intended for explaining the present invention, and are not to be construed as limiting the present invention.

Fig. 1 is a schematic view of a position of a leaf spring mounted with a vehicle according to an embodiment of the present invention. As shown in fig. 1, a vehicle is equipped with a plate spring fixing end 10 and a plate spring lug end 20, one end of a plate spring 2 is connected to the plate spring fixing end 10, the other end of the plate spring 2 is connected to the plate spring lug end 20, and the middle of the plate spring 2 is connected to a vehicle drive front axle by a U-bolt.

Fig. 2 is a schematic block diagram of a leaf spring mounting assembly according to one embodiment of the present invention. As shown in fig. 2, and with reference to fig. 1, in one particular embodiment, the leaf spring mounting assembly includes a bracket 1 disposed on the vehicle body, a leaf spring 2, and a fastener 5. The leaf spring 2 is provided with a lug 21 at one end close to the bracket 1, and the bracket 1 comprises two oppositely-arranged side walls, namely a first side wall 11 and a second side wall 12. An accommodating space 13 for accommodating the rolling lug is defined between the two side walls, and the two side walls are provided with through holes along the axial direction of the rolling lug. The fastening member 5 is used for fixing the rolling lug 21 in the accommodating space 13 of the bracket 1, and the fastening member 5 sequentially penetrates through one side wall (a first side wall) of the bracket 1, the rolling lug 21 and the other side wall (a second side wall) of the bracket along the axial direction of the rolling lug 21. In order to facilitate the installation of the plate spring 2, the thickness of the eye 21 is smaller than the width of the accommodating space 13 of the bracket 1 along the axial direction of the eye 21, so that a certain gap exists after the eye 21 of the plate spring 2 is installed in the accommodating space 13, and during the running of the vehicle, due to the existence of the gap, relative movement can be generated between the plate spring 2 and the bracket 1, so that the part of the structure can be abraded, and the comfort of the vehicle can be reduced. Therefore, in order to reduce abrasion and improve the comfort of the vehicle, the plate spring mounting assembly further comprises a shaft sleeve 4 arranged in at least one through hole, the shaft sleeve 4 is provided with two opposite ends along the axial direction, one end of the shaft sleeve is contacted with the rolling lug 21, the other end of the shaft sleeve is contacted with the fastening piece 5, the shaft sleeve 4 is sleeved on the fastening piece 5, the width of the shaft sleeve 4 along the axial direction is larger than the length of the corresponding through hole, and the shaft sleeve is used for fixing the rolling lug 21 in the accommodating space 13 of the support 1 so as to limit the rolling lug 21 to move along the axial direction, so that the collision between the plate spring and the side wall of the fixed support when the vehicle runs is reduced, the abrasion of the plate spring is reduced.

Further, the leaf spring mounting assembly further comprises a bushing 3, the bushing 3 being embedded in the lug 21 and penetrated by the fastener 5, the bushing 3 serving to reduce wear of the lug 21 during vehicle operation.

3 fig. 33 3 is 3 a 3 schematic 3 cross 3- 3 sectional 3 view 3 of 3 a 3 bushing 3 member 3 of 3 the 3 leaf 3 spring 3 mounting 3 assembly 3 shown 3 in 3 fig. 32 3, 3 and 3 fig. 34 3 is 3 a 3 schematic 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 a 3 sectional 3 line 3 a 3- 3 a 3 in 3 fig. 33 3. 3 As shown in fig. 3-4, and with reference to fig. 2, in a preferred embodiment the liner 3 is a rubber metal composite liner, the liner 3 having spaced apart metal and

rubber layers

32 and 33 in a radial direction of the liner 3. The liner 3 further includes an inner frame 31 and an outer frame 34, the inner frame 31 being in contact with the fastener 5 and the outer frame 34 being in contact with the eye 21. The metal layer 32 includes a first metal layer 321 and a second metal layer 322, and the rubber layer 33 includes a first rubber layer 331 and a second rubber layer 332. The layer of the bushing 3 closest to the inner frame 34 is a first metal layer 321, a thin rubber layer is vulcanized between the first metal layer 321 and the inner frame 31, a first rubber layer 331, a second metal layer 322 and a second rubber layer 332 are sequentially arranged close to the first metal layer 321, and the second rubber layer 332 is in contact with the outer frame 34. Wherein, outer skeleton 34 and the interference fit of book ear 21, inner frame 31 is equipped with two fender rings 36 outward, and two fender rings 36 and inner frame 31 interference fit, inner frame 31 can carry out surface treatment, increase the surface wear hardness. The rubber metal composite bushing is adopted, so that lubricating grease is not required to be injected in the later period, and the maintenance-free labor cost is realized. Meanwhile, the faults that the clearance between the bushing and the fastening piece is too large and is loosened due to dry grinding of the bushing, abnormal abrasion of the tire is finally caused, the whole vehicle flies at a high speed and the like are avoided. In addition, the bush can also be arranged at the position of the leaf spring lifting lug, and the abrasion of the leaf spring at the lifting lug end can be reduced.

In another embodiment the bushing 3 is provided with grooves 35 extending in its axial direction, the width of the grooves 35 decreasing in the direction of the bushing outer wall towards the bushing centre. The groove 35 can be compressed when the bushing 3 is assembled with the rolling lug 21, so that the rubber-metal composite bushing is convenient to assemble. Wherein, the groove 35 may be a triangular groove.

The fastener 5 comprises a bolt 52 and a nut 51, and the boss 4 is embedded in a through hole near the head of the bolt. The bolt 52 passes through the first side wall 11, the bush 3 and the second side wall 12 in this order, and is fastened with the nut 51 at a side close to the second side wall 12. When the shaft sleeve 4 is worn in the axial direction, the nut 51 only needs to be screwed down again to fix the shaft sleeve, and the radial gap between the shaft sleeve and the through hole can be ensured by replacing the shaft sleeve after the shaft sleeve 4 is worn in the radial direction.

Further, the bolt 52 is in clearance fit with the bushing 4, and the bushing 4 and the through hole in the bracket 1 are also in clearance fit. When the rolling lug 21 is installed with the bracket 1, the shaft sleeve 4 is firstly assembled on the bolt 52, and the bolt 52 passes through the bushing 4 and is fixed by the lock nut 51. When the nut 51 is tightened, the bolt 52 pushes the bushing 4 and presses the bushing 3 through the bushing 4 onto the mounting surface of the other side wall of the bracket 1 away from the bushing 4, so that the axial non-transmission of the leaf spring is ensured.

The utility model also provides a vehicle of installing the leaf spring installation assembly in above-mentioned arbitrary embodiment, to leaf spring installation assembly, this is not repeated.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.

Claims

1. A leaf spring mounting assembly, comprising:

a leaf spring, one end of which is provided with a rolling lug;

2. The leaf spring mounting assembly of claim 1,

the width of the shaft sleeve is larger than the length of the corresponding through hole along the axial direction of the shaft sleeve.

3. The leaf spring mounting assembly of claim 1, further comprising:

a bushing embedded in the eye, the fastener extending through the bushing.

4. The leaf spring mounting assembly of claim 3,

the bushing is a rubber-metal composite bushing and comprises metal layers and rubber layers which are arranged at intervals along the radial direction of the bushing;

the metal layers comprise a first metal layer and a second metal layer;

the rubber layers include a first rubber layer and a second rubber layer.

5. The leaf spring mounting assembly of claim 4,

the bushing also comprises an inner framework and an outer framework, and the first metal layer, the first rubber layer, the second metal layer and the second rubber layer are sequentially arranged between the inner framework and the outer framework;

6. The leaf spring mounting assembly of claim 3,

the bushing is provided with a groove extending in an axial direction of the bushing.

7. The leaf spring mounting assembly of claim 6,

the width of the groove is gradually reduced along the direction from the outer wall of the lining to the center of the lining.

8. The leaf spring mounting assembly of claim 1,

the fastener comprises a bolt and a nut.

9. The leaf spring mounting assembly of claim 8,

the shaft sleeve is embedded in a through hole close to the head of the bolt.

10. A vehicle fitted with a leaf spring mounting assembly according to any one of claims 1 to 9.