CN215831018U

CN215831018U - Leaf spring assembly structure behind lorry

Info

Publication number: CN215831018U
Application number: CN202122052064.4U
Authority: CN
Inventors: 兰利晓; 荆中顺; 刘业伟; 刁仁训
Original assignee: Qingdao Zefeng Auto Parts Co ltd
Current assignee: Qingdao Zefeng Auto Parts Co ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-02-15
Anticipated expiration: 2031-08-30

Abstract

The utility model discloses a truck rear leaf spring assembly structure which comprises a leaf spring main body, wherein the leaf spring main body consists of a main leaf spring, a reinforcing leaf spring, a first auxiliary leaf spring, a second auxiliary leaf spring, a first limiting lug, a third auxiliary leaf spring, a fourth auxiliary leaf spring, a fifth auxiliary leaf spring, a sixth auxiliary leaf spring and a second limiting lug, the first limiting lug is fixedly connected with the second auxiliary leaf spring, the second limiting lug is fixedly connected with the fourth auxiliary leaf spring, and a central fixing mechanism is arranged in the middle of the leaf spring main body. According to the utility model, the steel plate spring main body, the first limiting clamp, the second limiting clamp and the central fixing mechanism are arranged, and the first limiting lug, the second limiting lug, the first limiting clamp and the second limiting clamp can limit force along the length direction, so that the service life is prolonged, the fixing bolt is not easy to damage, the increase of a cylinder body is enhanced, the service life of the fixing bolt is prolonged, the fixing bolt is more impact-resistant, and the use is convenient.

Description

Leaf spring assembly structure behind lorry

Technical Field

The utility model relates to the technical field of automobile parts, in particular to a rear leaf spring assembly structure of a heavy truck.

Background

In the driving process of an automobile, when the automobile runs across an uneven road surface, the whole automobile jolts, and the jolt process can generate vibration up and down, so that impact is reduced, a suspension system of the automobile needs to be provided with a steel plate spring assembly, the steel plate spring assembly is complex in stress in the whole automobile and simultaneously bears vertical force, lateral force and longitudinal force, the steel plate spring is an elastic element which is most widely applied in the automobile suspension, the large part of the elastic element of the truck suspension is the steel plate spring, the first piece of the steel plate spring, namely the longest piece of the steel plate spring, is called as a main piece, and two ends of the current steel plate spring main piece are bent into a rolling lug and used for mounting a steel plate spring pin.

Although the existing steel plate spring can provide better vibration reduction in the vertical direction, the force along the length direction is not well limited and is limited only by the fixing bolt in the middle, so that the fixing bolt is easy to damage, the service life is shortened, and the use is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a rear leaf spring assembly structure of a heavy truck.

In order to achieve the purpose, the utility model adopts the following technical scheme: a rear leaf spring assembly structure of a truck comprises a leaf spring main body, wherein the leaf spring main body consists of a main reed, a reinforcing reed, a first auxiliary reed, a second auxiliary reed, a first limiting lug, a third auxiliary reed, a fourth auxiliary reed, a fifth auxiliary reed, a sixth auxiliary reed and a second limiting lug, the first limiting lug is fixedly connected with the second auxiliary reed, and the second limiting lug is fixedly connected with the fourth auxiliary reed;

the middle part of leaf spring main part is provided with central fixed establishment, central fixed establishment comprises fixing bolt, enhancement barrel, fixation nut, the outside of leaf spring main part is provided with the spacing clamp of first spacing clamp, second.

As a further description of the above technical solution:

the end part of the main reed is provided with a rolling lug, and the reinforcing reed is positioned below the main reed.

As a further description of the above technical solution:

the length of the first auxiliary spring leaf is smaller than that of the reinforcing spring leaf, and the length of the second auxiliary spring leaf is smaller than that of the first auxiliary spring leaf.

As a further description of the above technical solution:

the lower part of the first limiting clamp is fixedly connected with the second auxiliary reed through a rivet, and the first limiting convex block is located on the outer side of the third auxiliary reed.

As a further description of the above technical solution:

the length of the third auxiliary spring leaf is smaller than that of the second auxiliary spring leaf, and the lower part of the second limiting clamp is fixedly connected with the fourth auxiliary spring leaf through a rivet.

As a further description of the above technical solution:

the second limiting convex block is positioned on the outer side of the fifth auxiliary reed, and the length of the fifth auxiliary reed is smaller than that of the fourth auxiliary reed.

As a further description of the above technical solution:

the length of the sixth auxiliary spring leaf is smaller than that of the fifth auxiliary spring leaf, and the fixing bolt penetrates through the reinforcing cylinder.

As a further description of the above technical solution:

the length of the reinforcing cylinder body is the same as the thickness of the whole reinforcing cylinder body.

The utility model has the following beneficial effects:

1. compared with the prior art, this leaf spring assembly structure behind lorry has set up leaf spring main part, first spacing clamp, the spacing clamp of second, and the spacing clamp of first spacing lug, the spacing lug of second, first spacing clamp, second can restrict the power along length direction, and increase of service life is difficult to damage.

2. Compared with the prior art, the rear leaf spring assembly structure of the lorry is provided with the central fixing mechanism, the increase of the cylinder body is enhanced, the service life of the fixing bolt is prolonged, the fixing bolt is more impact-resistant, and the use is convenient.

Drawings

FIG. 1 is a schematic structural view of a rear leaf spring assembly structure of a truck according to the present invention;

FIG. 2 is a front view of a rear leaf spring assembly configuration for a truck in accordance with the present invention;

FIG. 3 is a structural schematic diagram of another perspective view of a rear leaf spring assembly structure of a truck according to the present invention;

fig. 4 is a bottom view of a rear leaf spring assembly structure of a truck according to the present invention.

Illustration of the drawings:

1. a leaf spring body; 2. a first limit clamp; 3. a central fixing mechanism; 4. a second limit clamp; 101. a main reed; 102. a reinforcing reed; 103. a first secondary reed; 104. a second secondary reed; 105. a first limit bump; 106. a third auxiliary reed; 107. a fourth secondary reed; 108. a fifth auxiliary reed; 109. a sixth secondary reed; 110. a second limit bump; 301. fixing the bolt; 302. reinforcing the cylinder body; 303. and (5) fixing the nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, one embodiment of the present invention is provided: a rear leaf spring assembly structure of a heavy truck comprises a leaf spring main body 1, wherein the leaf spring main body 1 consists of a main leaf spring 101, a reinforcing leaf spring 102, a first auxiliary leaf spring 103, a second auxiliary leaf spring 104, a first limit lug 105, a third auxiliary leaf spring 106, a fourth auxiliary leaf spring 107, a fifth auxiliary leaf spring 108, a sixth auxiliary leaf spring 109 and a second limit lug 110, a winding lug is arranged at the end part of the main leaf spring 101 and used for installation, the reinforcing leaf spring 102 is positioned below the main leaf spring 101, the length of the first auxiliary leaf spring 103 is smaller than that of the reinforcing leaf spring 102, the length of the second auxiliary leaf spring 104 is smaller than that of the first auxiliary leaf spring 103, the first limit lug 105 is fixedly connected with the second auxiliary leaf spring 104, the second limit lug 110 is fixedly connected with the fourth auxiliary leaf spring 107, the first limit lug 105 is positioned at the outer side of the third auxiliary leaf spring 106, and the length of the third auxiliary leaf spring 106 is smaller than that of the second auxiliary leaf spring 104, second limit projection 110 is located outside fifth auxiliary reed 108, length of fifth auxiliary reed 108 is smaller than length of fourth auxiliary reed 107, and length of sixth auxiliary reed 109 is smaller than length of fifth auxiliary reed 108;

the middle part of the steel plate spring main body 1 is provided with a center fixing mechanism 3, the center fixing mechanism 3 is composed of a fixing bolt 301, a reinforcing cylinder 302 and a fixing nut 303, the increase of the reinforcing cylinder 302 improves the service life of the fixing bolt 301, so that the fixing bolt 301 is more impact-resistant and convenient to use, the fixing bolt 301 penetrates through the reinforcing cylinder 302, the length of the reinforcing cylinder 302 is the same as the whole thickness, and the limiting force can be provided for each auxiliary spring piece, the outer side of the steel plate spring main body 1 is provided with a first limiting clamp 2 and a second limiting clamp 4, the lower part of the first limiting clamp 2 is fixedly connected with a second auxiliary spring piece 104 through a rivet, the lower part of the second limiting clamp 4 is fixedly connected with a fourth auxiliary spring piece 107 through a rivet, the first limiting clamp 2, the second limiting clamp 4, a first limiting lug 105 and a second limiting lug 110 can provide limitation for most auxiliary spring pieces, the integral impact resistance is increased, and the service life is prolonged.

The working principle is as follows: first spacing clamp 2, the spacing clamp 4 of second, first spacing lug 105, the spacing lug 110 of second can provide the restriction to most vice reed, increase holistic impact resistance, increase of service life strengthens barrel 302, has improved fixing bolt 301's life, makes it more resistant impact force, convenient to use.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a leaf spring assembly structure behind lorry, includes leaf spring main part (1), its characterized in that: the steel plate spring main body (1) consists of a main reed (101), a reinforcing reed (102), a first auxiliary reed (103), a second auxiliary reed (104), a first limiting lug (105), a third auxiliary reed (106), a fourth auxiliary reed (107), a fifth auxiliary reed (108), a sixth auxiliary reed (109) and a second limiting lug (110), wherein the first limiting lug (105) is fixedly connected with the second auxiliary reed (104), and the second limiting lug (110) is fixedly connected with the fourth auxiliary reed (107);

the middle part of leaf spring main part (1) is provided with central fixed establishment (3), central fixed establishment (3) comprise fixing bolt (301), strengthen barrel (302), fixation nut (303), the outside of leaf spring main part (1) is provided with first spacing clamp (2), the spacing clamp of second (4).

2. The truck rear leaf spring assembly structure of claim 1, characterized in that: the end part of the main reed (101) is provided with a rolling lug, and the reinforcing reed (102) is positioned below the main reed (101).

3. The truck rear leaf spring assembly structure of claim 1, characterized in that: the length of the first secondary reed (103) is smaller than that of the reinforcing reed (102), and the length of the second secondary reed (104) is smaller than that of the first secondary reed (103).

4. The truck rear leaf spring assembly structure of claim 1, characterized in that: the lower part of the first limit clamp (2) is fixedly connected with a second auxiliary spring plate (104) through a rivet, and the first limit lug (105) is positioned on the outer side of a third auxiliary spring plate (106).

5. The truck rear leaf spring assembly structure of claim 1, characterized in that: the length of the third auxiliary spring plate (106) is smaller than that of the second auxiliary spring plate (104), and the lower part of the second limiting clamp (4) is fixedly connected with the fourth auxiliary spring plate (107) through a rivet.

6. The truck rear leaf spring assembly structure of claim 1, characterized in that: the second limiting convex block (110) is positioned on the outer side of the fifth auxiliary reed (108), and the length of the fifth auxiliary reed (108) is smaller than that of the fourth auxiliary reed (107).

7. The truck rear leaf spring assembly structure of claim 1, characterized in that: the length of the sixth secondary reed (109) is smaller than that of the fifth secondary reed (108), and the fixing bolt (301) penetrates through the reinforcing cylinder (302).

8. The truck rear leaf spring assembly structure of claim 1, characterized in that: the length of the reinforcing cylinder (302) is the same as the thickness of the whole body.