CN212337985U

CN212337985U - High-smoothness composite plate spring for electric tricycle

Info

Publication number: CN212337985U
Application number: CN202021533380.2U
Authority: CN
Inventors: 马光; 李召勤; 王钱; 钱春虎
Original assignee: Jiangsu Jinpeng Group Co Ltd
Current assignee: Jiangsu Jinpeng Group Co Ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-01-12
Anticipated expiration: 2030-07-29

Abstract

The utility model relates to a high ride comfort combined material board spring for electric tricycle belongs to chassis suspension technical field. The composite plate spring set comprises a first reed, a second reed, a third reed, a fourth reed and a fifth reed which are sequentially overlapped from top to bottom and fixed through fastening bolts; the two ends of the first reed adopt a lower rolling lug equal-section structure; the central parts of the second reed, the third reed, the fourth reed and the fifth reed adopt equal section structures, and both ends of the reeds adopt parabola-type variable section structures. The utility model has the advantages that: the lightweight effect is obvious, has effectively improved the NVH characteristic of electric tricycle and the operating stability of whole car, and the security is higher, and is stand wear and tear, shock resistance, corrosion-resistant, low temperature resistant, has good durability simultaneously.

Description

High-smoothness composite plate spring for electric tricycle

Technical Field

The utility model relates to a high ride comfort combined material board spring for electric tricycle belongs to chassis suspension technical field.

Background

The chassis suspension system is one of the main components of modern vehicles, and is used for elastically connecting an axle with a frame (or a bearing type vehicle body), transmitting force and torsion between wheels and the frame (or the bearing type vehicle body), relieving impact load transmitted to the frame (or the bearing type vehicle body) from an uneven road surface, reducing vibration caused by the impact load and ensuring normal running of the vehicle. The plate spring is the earliest elastic element adopted in a chassis suspension system, mainly plays roles of guiding, damping and buffering, and is widely applied due to the advantages of simple structure, reliable work, low cost and convenient maintenance.

At present, a plate spring is mostly made of steel plate materials and has an equal-section structure, the self weight is larger, the light weight of a vehicle is difficult to realize, the rigidity is difficult to adjust, and the driving smoothness is poorer; the first reed is usually in an upper rolling lug structure and is not easy to open under the action of load; an anti-friction gasket is not arranged between the reeds or is made of metal materials, so that the friction between the reeds is large, and the noise of the plate spring is large; the section of the reed is generally in a rectangular structure, so that the single mass energy storage is small, and the material utilization rate is low; most of central bolts are matched with hexagon nuts, and the anti-loosening effect is not ideal.

Disclosure of Invention

In order to overcome the weak point of above-mentioned prior art, the utility model provides a high ride comfort combined material board spring for electric tricycle, parabola type variable cross-section structure is adopted at the both ends of reed, and its high stress area is longer, and stress distribution is more reasonable, and material utilization is higher.

The utility model discloses a realize through following technical scheme: the utility model provides a high ride comfort combined material board spring for electric tricycle which characterized in that: the composite plate spring set comprises a first reed, a second reed, a third reed, a fourth reed and a fifth reed which are sequentially overlapped from top to bottom and fixed through fastening bolts; the two ends of the first reed adopt a lower rolling lug equal-section structure; the central parts of the second reed, the third reed, the fourth reed and the fifth reed adopt equal section structures, and both ends of the reeds adopt parabola-type variable section structures.

Rolling antifriction components are arranged between the first leaf spring and the second leaf spring, between the second leaf spring and the third leaf spring, between the third leaf spring and the fourth leaf spring, and between the fourth leaf spring and the fifth leaf spring, and the rolling antifriction components are made of modified ultrahigh molecular weight polyethylene materials.

The first leaf spring, the second leaf spring, the third leaf spring, the fourth leaf spring and the fifth leaf spring are made of single-face double-groove structure glass fiber reinforced plastic materials, and the grooves are isosceles trapezoids.

The center of the composite plate spring group is fastened through a fastening bolt, and a B-shaped plate spring locking nut is used for fastening in a matched mode.

The combined material plate spring group is fixed by adopting an enclosed type clamp structure, a through hole is formed in the clamp, a rivet hole corresponding to the through hole is formed in the third leaf spring, and the clamp and the combined material plate spring group are fastened and connected by adopting a rivet.

The utility model has the advantages that: the lightweight effect is obvious, has effectively improved the NVH characteristic of electric tricycle and the operating stability of whole car, and the security is higher, and is stand wear and tear, shock resistance, corrosion-resistant, low temperature resistant, has good durability simultaneously.

Drawings

The invention will be further explained below with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a cross-sectional view B-B of FIG. 1;

fig. 3 is a schematic cross-sectional view of the reed of the present invention.

In the figure: 1. a composite plate spring set; 2. a first leaf spring; 3. a second leaf spring; 4. a third reed; 5. a fourth reed; 6. a fifth reed; 7. fastening a bolt; 8. b type plate spring locking nuts; 9. a rolling wear reduction assembly; 10. a uniform cross-sectional structure; 11. a variable cross-section structure; 12. the lower scroll ear has a uniform section structure; 13. clamping a hoop; 14. a through hole; 15. rivet holes; 16. riveting; 17. single-sided double-groove structure.

Detailed Description

As shown in fig. 1 to 3, the high-ride-comfort composite plate spring for an electric tricycle is characterized in that: the composite plate spring set comprises a composite plate spring set 1 formed by sequentially overlapping a plurality of reeds with equal width but unequal length, wherein the composite plate spring set 1 comprises a first reed 2, a second reed 3, a third reed 4, a fourth reed 5 and a fifth reed 6 which are sequentially overlapped from top to bottom and fixed through a fastening bolt 7; the two ends of the first reed 2 adopt a lower rolling lug equal-section structure 12; the central parts of the second reed 3, the third reed 4, the fourth reed 5 and the fifth reed 6 adopt a uniform cross-section structure 10, and the two ends of the reeds adopt parabola-type variable cross-section structures 11, so that the high stress area is longer, the stress distribution is more reasonable, and the material utilization rate is higher.

Rolling antifriction components 9 are arranged between the first leaf spring 2 and the second leaf spring 3, between the second leaf spring 3 and the third leaf spring 4, between the third leaf spring 4 and the fourth leaf spring 5, and between the fourth leaf spring 5 and the fifth leaf spring 6, and the rolling antifriction components 9 are made of modified ultra-high molecular weight polyethylene materials, so that contact fatigue is reduced, riding comfort is improved, and fatigue life of the plate spring is prolonged.

The first reed 2, the second reed 3, the third reed 4, the fourth reed 5 and the fifth reed 6 are made of single-face double-groove structure 17 glass fiber reinforced plastic materials, the grooves are isosceles trapezoids, the allowable stress of the plate spring is improved, the quality of the plate spring is reduced, and the requirement of vehicle light weight is met.

The center of the composite plate spring group 1 is fastened through a fastening bolt 7, and is fastened by using a B-shaped plate spring locking nut 8 in a matched mode, so that the anti-loosening and anti-seismic performance is more reliable.

The combined material plate spring group 1 is structurally fixed by adopting a surrounding type hoop 13, a through hole 14 is formed in the hoop 13, a rivet hole 15 corresponding to the through hole 14 is formed in the third reed 4, the hoop 13 and the combined material plate spring group 1 are fastened and connected by adopting a rivet 16, and the combined material plate spring group is simple in process, impact-resistant and high in reliability.

Claims

1. The utility model provides a high ride comfort combined material board spring for electric tricycle which characterized in that: the composite plate spring set comprises a composite plate spring set (1) formed by sequentially overlapping a plurality of reeds with equal width but unequal length, wherein the composite plate spring set (1) comprises a first reed (2), a second reed (3), a third reed (4), a fourth reed (5) and a fifth reed (6) which are sequentially overlapped from top to bottom and fixed through a fastening bolt (7); the two ends of the first reed (2) adopt a lower rolling lug equal-section structure (12); the central parts of the second reed (3), the third reed (4), the fourth reed (5) and the fifth reed (6) adopt an equal section structure (10), and the two ends of the reeds adopt a parabola-shaped variable section structure (11).

2. The high ride comfort composite plate spring for an electric tricycle of claim 1, wherein: and a rolling antifriction component (9) is arranged between the first reed (2) and the second reed (3), between the second reed (3) and the third reed (4), between the third reed (4) and the fourth reed (5), and between the fourth reed (5) and the fifth reed (6), and the rolling antifriction component (9) is made of modified ultrahigh molecular weight polyethylene material.

3. The high ride comfort composite plate spring for an electric tricycle of claim 1, wherein: the first reed (2), the second reed (3), the third reed (4), the fourth reed (5) and the fifth reed (6) are made of single-face double-groove structure (17) glass fiber reinforced plastic materials, and the grooves are isosceles trapezoids in shape.

4. The high ride comfort composite plate spring for an electric tricycle of claim 1, wherein: the center of the composite plate spring set (1) is fastened through a fastening bolt (7) and is fastened by a B-shaped plate spring locking nut (8) in a matched mode.

5. The high ride comfort composite plate spring for an electric tricycle of claim 1, wherein: the combined material plate spring group (1) is structurally fixed by adopting an enclosed hoop (13), a through hole (14) is formed in the hoop (13), a rivet hole (15) corresponding to the through hole (14) is formed in the third reed (4), and the hoop (13) and the combined material plate spring group (1) are fastened and connected by adopting a rivet (16).