CN212616043U

CN212616043U - Two-stage rigidity front axle plate spring

Info

Publication number: CN212616043U
Application number: CN202020444607.XU
Authority: CN
Inventors: 薛现勇
Original assignee: Taifute Steel Suspension Jinan Co ltd
Current assignee: Taifute Steel Suspension Jinan Co ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2021-02-26
Anticipated expiration: 2030-03-31

Abstract

The utility model discloses a two-stage rigidity front axle leaf spring, including first reed, second reed, third reed and fourth reed, the both ends contact position installation shock attenuation backing plate of second reed and third reed, and wear-resisting backing plate between the adjacent two sets of reeds of first reed, second reed, third reed and fourth reed, wear to put central bolt in the middle of first reed, second reed, third reed and the fourth reed, central bolt couples together first reed, second reed, third reed and fourth reed and middle wear-resisting backing plate, first reed left side is fixed with the book ear. According to the two-stage rigidity front axle plate spring, the rigidity of the plate spring is the rigidity of the first group of reeds, the rigidity is small, the self-vibration frequency of the plate spring is low, the first group of reeds and the second group of reeds jointly bear load when a vehicle is fully loaded, the rigidity of the plate spring is the sum of the rigidity of the first group of reeds and the rigidity of the second group of reeds, the rigidity is large, the working stress of the plate spring is small, and the service life.

Description

Two-stage rigidity front axle plate spring

Technical Field

The utility model relates to an automobile parts field specifically is a two-stage rigidity front axle leaf spring.

Background

The automobile industry is an important mark for measuring the national economic development level, developed countries in the western world have higher automobile manufacturing technical level, automobile plate springs need to work under complex stress states such as tension, compression, bending and alternation and high stress values for a long time, the working environment is extremely severe, and the automobile plate springs have direct influence on the reliability and the service life of automobiles, so the automobile plate springs are basic parts and key parts of the automobiles, the quality of the automobile plate springs determines the performance of the automobiles, and the famous automobile manufacturers in the world have higher requirements on the plate springs. Under the condition of long service life, the ordinary first-level steel plate spring can cause the plate spring to have high self-vibration frequency in no-load, and the driving performance and the riding comfort are greatly reduced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem lie in overcoming the problem that the background art provided, provide a two-stage rigidity front axle leaf spring.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a two-stage rigidity front axle leaf spring, includes first reed, second reed, third reed and fourth reed, the both ends contact position installation shock attenuation backing plate of second reed and third reed, and wear-resisting backing plate between the adjacent two sets of reeds of first reed, second reed, third reed and fourth reed, wear to put central bolt in the middle of first reed, second reed, third reed and the fourth reed, and the spiro union has center nut on central bolt, and central bolt couples together first reed, second reed, third reed and fourth reed and middle wear-resisting backing plate, first reed left side is fixed with the book ear, and is provided with the book ear backup pad on the second reed of book ear below.

Preferably, be provided with the constant head tank on the both sides lower surface of first reed, the upper surface of second reed corresponds and is provided with the protruding muscle in location, and the lower surface of second reed is provided with the constant head tank, and the upper surface of shock attenuation backing plate corresponds and is provided with the protruding muscle in location, and the lower surface of shock attenuation backing plate is provided with the constant head tank, and the upper surface of third reed corresponds and is provided with the protruding muscle in location simultaneously, and the lower surface of third reed is provided with the constant head tank, and the upper surface of fourth reed corresponds and is provided with the protruding muscle in.

Preferably, the first reed, the second reed, the third reed and the fourth reed are stacked in sequence, wherein the first reed and the second reed are a first group of reeds, and the third reed and the fourth reed are a second group of reeds.

Preferably, the side surface of the first reed is spaced from the two sides of the second reed, the two sides of the fourth reed are spaced from the two sides of the third reed, the two ends of the second reed are spaced from the two ends of the third reed, and the widths of the two ends of the first reed, the second reed, the third reed and the fourth reed are smaller than the width of the middle part.

Preferably, the spring eye that first reed side set up is the cylinder structure, and the fixed spring eye backup pad of second reed below the spring eye of left side is the arc structure to the arc radius of spring eye backup pad is greater than the radius of spring eye.

Preferably, the shock absorption base plate consists of a first pressing plate, a second pressing plate and a wear-resistant layer with a bonding effect between the first pressing plate and the second pressing plate, the wear-resistant layer is nitrile rubber, and the first pressing plate and the second pressing plate are of steel sheet structures.

Compared with the prior art, the beneficial effects of the utility model are that: the two-stage rigidity front axle plate spring has the advantages that the rigidity of the plate spring is equal to that of the first group of the plate springs, the rigidity is small, the self-vibration frequency of the plate spring is low and is close to that of a human body when the human body walks, and the driving performance and riding comfort of a vehicle are good; when the vehicle is fully loaded, the first group of reeds and the second group of reeds jointly bear load, the rigidity of the plate spring is the sum of the rigidity of the first group of reeds and the rigidity of the second group of reeds, the rigidity is high, the working stress of the plate spring is small, and the service life is long.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic top view of the structure of the present invention;

fig. 3 is a schematic view of the shock absorbing pad plate of the present invention.

In the figure: 1. a first reed; 2. a second reed; 3. a central nut; 4. a wear-resistant backing plate; 5. a third reed; 6. a fourth reed; 7. a center bolt; 8. a shock-absorbing base plate; 9. a tab support plate; 10. ear rolling; 11. positioning a groove; 12. positioning the convex ribs; 13. a wear layer; 14. a first platen; 15. and a second pressure plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a two-stage rigidity front axle plate spring comprises a first reed 1, a second reed 2, a third reed 5 and a fourth reed 6, wherein shock absorption backing plates are arranged at the contact positions of the two ends of the second reed 2 and the third reed 5, a wear-resistant backing plate 4 is arranged between two adjacent groups of the first reed 1, the second reed 2, the third reed 5 and the fourth reed 6, a central bolt 7 penetrates through the middles of the first reed 1, the second reed 2, the third reed 5 and the fourth reed 6, a central nut 3 is screwed at the upper end of the central bolt 7, the central bolt 7 connects the first reed 1, the second reed 2, the third reed 5 and the fourth reed 6 with the middle wear-resistant backing plate 4, the wear-resistant backing plate 4 is made of a material with good wear resistance and lower hardness than the reeds, a rolling lug 10 is fixed on the left side of the first reed 1, a rolling lug support plate 9 is arranged on the second reed 2 below the rolling lug 10, positioning grooves 11 are arranged on the lower surfaces of the two sides of the first reed 1, the upper surface of the second reed 2 is correspondingly provided with a positioning convex rib 12, the lower surface of the second reed 2 is provided with a positioning groove 11, the upper surface of the shock absorption backing plate 8 is correspondingly provided with a positioning convex rib 12, the lower surface of the shock absorption backing plate 8 is provided with a positioning groove 11, meanwhile, the upper surface of the third reed 5 is correspondingly provided with a positioning convex rib 12, the lower surface of the third reed 5 is provided with a positioning groove 11, and the upper surface of the fourth reed 6 is correspondingly provided with a positioning convex rib 12, so that the structure is integrated;

the side surface of the first reed 1 is separated from the two sides of the second reed 2, the two sides of the fourth reed 6 are separated from the two sides of the third reed 5, the two ends of the second reed 2 and the third reed 5 are separated, meanwhile, the width of the two ends of the first reed 1, the second reed 2, the third reed 5 and the fourth reed 6 is smaller than that of the middle part, a good supporting effect is achieved, the first reed 1, the second reed 2, the third reed 5 and the fourth reed 6 are sequentially overlapped, wherein the first reed 1 and the second reed 2 are a first group of reeds, the third reed 5 and the fourth reed 6 are a second group of reeds, only the first group of reeds bear load when a vehicle is in a no-load state, the rigidity of the reeds is the rigidity of the first group of reeds, the rigidity is small, the self-vibration frequency of the leaf springs is low, the self-vibration frequency of the leaf springs is 1.0-1.6hz when the vehicle is near to walk, the driving, when the vehicle is fully loaded, the first group of reeds and the second group of reeds jointly bear load, the rigidity of the plate spring is the sum of the rigidity of the first group of reeds and the rigidity of the second group of reeds, the rigidity is high, the working stress of the plate spring is small, and the service life is long;

the book ear 10 that first reed 1 side set up is the cylinder structure, and the fixed book ear backup pad 9 of second reed 2 of left side book ear 10 below is the arc structure, and the arc radius of book ear backup pad 9 is greater than the radius of book ear 10, book ear backup pad 9 plays the effect of supporting book ear 10, improve the intensity of book ear 10, vibration damping pad 8 is by first clamp plate 14, the wearing layer 13 of second clamp plate 15 and

first clamp plate

14 and 15 middle bonding effects of second clamp plate constitutes, and wearing layer 13 is butadiene acrylonitrile rubber, and first clamp plate 14 and second clamp plate 15 are the steel sheet structure, play absorbing effect, and come through vibration damping pad 8 with two sets of reed intervals.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a two-stage rigidity front axle leaf spring, includes first reed (1), second reed (2), third reed (5) and fourth reed (6), its characterized in that: the damping cushion plate is installed at the contact positions of the two ends of the second reed (2) and the third reed (5), and a wear-resistant cushion plate (4) is arranged between two adjacent sets of reeds of the first reed (1), the second reed (2), the third reed (5) and the fourth reed (6), a central bolt (7) is arranged between the first reed (1), the second reed (2), the third reed (5) and the fourth reed (6) in a penetrating mode, a central nut (3) is screwed on the upper end of the central bolt (7), the central bolt (7) connects the first reed (1), the second reed (2), the third reed (5) and the fourth reed (6) with the middle wear-resistant cushion plate (4), a rolling lug (10) is fixed on the left side of the first reed (1), and a rolling lug supporting plate (9) is arranged on the second reed (2) below the rolling lug (10).

2. A two-stage stiffness front axle leaf spring as claimed in claim 1, wherein: be provided with constant head tank (11) on the both sides lower surface of first reed (1), the upper surface of second reed (2) corresponds and is provided with location protruding muscle (12), and the lower surface of second reed (2) is provided with constant head tank (11), the upper surface of shock attenuation backing plate (8) corresponds and is provided with location protruding muscle (12), the lower surface of shock attenuation backing plate (8) is provided with constant head tank (11), the upper surface of third reed (5) corresponds and is provided with location protruding muscle (12) simultaneously, the lower surface of third reed (5) is provided with constant head tank (11), and the upper surface of fourth reed (6) corresponds and is provided with location protruding muscle (12).

3. A two-stage stiffness front axle leaf spring as claimed in claim 1, wherein: the first reed (1), the second reed (2), the third reed (5) and the fourth reed (6) are sequentially stacked, wherein the first reed (1) and the second reed (2) are a first group of reeds, and the third reed (5) and the fourth reed (6) are a second group of reeds.

4. A two-stage stiffness front axle leaf spring as claimed in claim 1, wherein: the side face of the first reed (1) is spaced from two sides of the second reed (2), two sides of the fourth reed (6) are spaced from two sides of the third reed (5), two ends of the second reed (2) are spaced from two ends of the third reed (5), and the widths of the two ends of the first reed (1), the second reed (2), the third reed (5) and the fourth reed (6) are smaller than that of the middle part.

5. A two-stage stiffness front axle leaf spring as claimed in claim 1, wherein: the spring eye (10) that first reed (1) side set up is the cylinder structure, and the fixed spring eye backup pad (9) of second reed (2) of left side spring eye (10) below is the arc structure to the arc radius of spring eye backup pad (9) is greater than the radius of spring eye (10).

6. A two-stage stiffness front axle leaf spring as claimed in claim 1, wherein: the shock absorption base plate (8) is composed of a first pressing plate (14), a second pressing plate (15) and a wear-resistant layer (13) which is bonded between the first pressing plate (14) and the second pressing plate (15), the wear-resistant layer (13) is nitrile rubber, and the first pressing plate (14) and the second pressing plate (15) are of steel sheet structures.