CN217533133U

CN217533133U - Rear rocker arm assembly suitable for horizontal pull type shock absorber

Info

Publication number: CN217533133U
Application number: CN202221456639.7U
Authority: CN
Inventors: 安丰谦; 高淑斌
Original assignee: Jinan Weitao Science & Technol
Current assignee: Jinan Weitao Science & Technol
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2022-10-04
Anticipated expiration: 2032-06-13

Abstract

The utility model discloses a be fit for horizontal back rocking arm assembly who draws formula bumper shock absorber, including back rocking arm welding main part to and set up the backplate at both ends around the back rocking arm welding main part, and two the size of backplate is equated, still includes: the inboard of back rocking arm welding main part is provided with the otic placode, and the length of otic placode is less than the length of back rocking arm welding main part, the inboard of back rocking arm welding main part is provided with the pivot, and the outside nested connection of pivot has pivot bush to the both ends of pivot bush are connected to pull rod lug and bumper shock absorber lug through the panhandle main part respectively. This back rocking arm assembly that is fit for horizontal pull formula bumper shock absorber does not rely on the bumper shock absorber to lengthen spacing formation through the swing limit of back rocking arm, and this impact in the twinkling of an eye when having just avoided the bumper shock absorber tensile to the limit, in addition, the increase of hanging some quantity, main load hang some skew and the middle part of frame crossbeam and back rocking arm bottom end rail have reduced hangers pulling force crossbeam bending stress by a wide margin.

Description

Rear rocker arm assembly suitable for horizontal pull type shock absorber

Technical Field

The utility model relates to a bumper shock absorber technical field specifically is a back rocking arm assembly that is fit for horizontal pull formula bumper shock absorber.

Background

The heavy motorcycle modified truck is provided with a bearing and pulling shock absorber which horizontally arranges the shock absorber in the space under an engine gearbox, and aims to obtain the mounting space of the rear wheel as large as possible under the condition of not increasing the wheelbase, use a large tire and pursue the simple appearance of the rear tail. But in actual use, the problems of the breaking of the shock absorber, the bending of the vehicle bottom cross beam or the lower cross beam of the rear rocker arm, the connection of a hinge pull ring or local tearing and the like exist;

therefore, the rear rocker arm assembly suitable for the horizontal pull type shock absorber is provided, and the problems can be well solved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a back rocking arm assembly that is fit for horizontal formula bumper shock absorber that draws to it has one kind to arrange the bumper shock absorber level to hold in the engine gearbox bottom space and draw to be the bumper shock absorber to solve the heavy motorcycle modified car on the existing market that above-mentioned background art provided, and the purpose acquires rear wheel installation space as big as possible, uses the large tyre, pursues the back tail outward appearance succinct under the condition that does not increase the wheel base. But from the in-service use, the problem of bumper shock absorber breaking, vehicle bottom crossbeam or rear rocker arm bottom end rail stretch bending, connection hinge pull ring or local tear etc..

In order to achieve the above object, the utility model provides a following technical scheme: a rear rocker arm assembly suitable for a horizontal pull type shock absorber comprises a rear rocker arm welding main body and guard plates arranged at the front end and the rear end of the rear rocker arm welding main body, wherein the two guard plates are equal in size;

further comprising: the inboard of back rocking arm welding main part is provided with the otic placode, and the length of otic placode is less than the length of back rocking arm welding main part, the inboard of back rocking arm welding main part is provided with the pivot, and the outside nested connection of pivot has pivot bush to the both ends of pivot bush are connected to pull rod lug and bumper shock absorber lug through the panhandle main part respectively.

Preferably, a flat-turning rocker arm combination is arranged inside the rear rocker arm welding main body, the rear side of the flat-turning rocker arm combination is connected with a pull rod lug through a pin shaft bolt, the diameter of the pull rod lug is larger than that of the pin shaft bolt, a specially-made key bearing is arranged at the front end of the flat-turning rocker arm combination, the inner side of the specially-made key bearing is provided with glue pressing and injecting, and the outer side of the glue pressing and injecting is connected with a shock absorber lug.

Through adopting above technical scheme, the processing of the back rocking arm assembly of supplementary bumper shock absorber is used through the combination of flat commentaries on classics rocking arm that can be fine.

Preferably, both ends all are connected with the backplate around the otic placode to two backplates are the vertical center line symmetry setting about the otic placode, the one end of flat commentaries on classics rocking arm combination is connected with the connecting seat through the loose axle, and the outside of connecting seat is connected with the loop bar, and the outside of loop bar is connected with the pull rod combination, the one end outside of pull rod combination is connected to the connecting rod, and the outside of connecting rod is connected to the connecting block to the outside of connecting block is connected to the otic placode.

By adopting the technical scheme, the better processing and use of the Fang Bianhou post-stage rocker arm assembly can better reduce the bending stress of the pull beam of the suspension loop.

Compared with the prior art, the beneficial effects of the utility model are that: the rear rocker arm assembly is suitable for the horizontal pull type shock absorber; the horizontal rotation rocker is pulled by the pull rod to rotate along with the swinging of the rear rocker arm, the other end of the horizontal rotation rocker pulls the shock absorber, the pulling force of the shock absorber reacts on the horizontal rotation rocker arm and generates pulling force for preventing the rear rocker arm from moving through the pull rod, and in addition, the other end of the shock absorber also generates pulling force for the rear rocker arm. As the rotation angle of the horizontal rotation rocker arm is increased, the moment arm between the pull rod and the connecting line between the suspension point and the pivot of the counterweight rocker arm is obviously reduced, the acting moment arm of the shock absorber is far larger than that of the pull rod, the pulling force of the shock absorber reflects larger force on the pull rod, the moment ratio is nonlinearly and rapidly increased along with the further rotation of the horizontal rotation rocker arm, and therefore a rear rocker arm swing limit which can be infinitely close but can never reach is formed, the swing limit of back rocking arm does not rely on the bumper shock absorber to lengthen spacing formation, and this impact in the twinkling of an eye when having avoided the bumper shock absorber tensile to the limit, in addition, the increase of hanging some quantity, main load hang some skew and the middle part of frame crossbeam and back rocking arm bottom end rail, have reduced hangers pulling force crossbeam bending stress by a wide margin, better make things convenient for the operation of later stage bumper shock absorber to use.

Drawings

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

FIG. 2 is a schematic view of the top view structure of the rear rocker arm welding main body and the guard plate of the present invention;

FIG. 3 is a schematic view of a top-down structure of the rear rocker arm welding main body of the present invention;

FIG. 4 is a schematic view of a side-sectional structure of the combination of the swing arm of the present invention;

fig. 5 is the schematic view of the main structure of the horizontal rotary rocker arm assembly of the present invention.

In the figure: 1. the rear rocker arm is welded with the main body; 2. an ear plate; 3. combining a pull rod; 3-1, connecting blocks; 3-2, connecting rods; 3-3, a connecting seat; 3-4, sleeving a rod; 4. a horizontal rotation rocker arm combination; 4-1, a pan arm body; 4-2, specially manufacturing a key bearing; 4-3, injecting glue; 4-4, pivot bushing; 4-5, pressing a cover; 4-6, a pin shaft bolt; 5. a movable shaft; 6. a guard plate; 7. a pivot; 8. the pull rods are crossed with ears; 9. the shock absorbers are crossed with ears.

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. 1-5, the present invention provides a technical solution: a rear rocker arm assembly suitable for a horizontal pull type shock absorber comprises a rear rocker arm welding main body 1, an ear plate 2, a pull rod assembly 3, a connecting block 3-1, a connecting rod 3-2, a connecting seat 3-3, a sleeve rod 3-4, a flat rotating rocker arm assembly 4, a flat rocker arm main body 4-1, a specially-made key bearing 4-2, pressure injection glue 4-3, a pivot shaft bushing 4-4, a gland 4-5, a pin shaft bolt 4-6, a movable shaft 5, a protective plate 6, a pivot shaft 7, a pull rod lug 8 and a shock absorber lug 9;

the welding device comprises a rear rocker arm welding main body 1 and guard plates 6 arranged at the front end and the rear end of the rear rocker arm welding main body 1, wherein the two guard plates 6 are equal in size;

further comprising: the inner side of the rear rocker arm welding main body 1 is provided with an ear plate 2, the length of the ear plate 2 is smaller than that of the rear rocker arm welding main body 1, the inner side of the rear rocker arm welding main body 1 is provided with a pivot shaft 7, the outer side of the pivot shaft 7 is connected with a pivot shaft bushing 4-4 in a nested mode, and two ends of the pivot shaft bushing 4-4 are connected to a pull rod lug 8 and a shock absorber lug 9 through a flat rocker arm main body 4-1 respectively.

The inner part of the rear rocker arm welding main body 1 is provided with a flat-turning rocker arm combination 4, the rear side of the flat-turning rocker arm combination 4 is connected with a pull rod cross lug 8 through a pin shaft bolt 4-6, the diameter of the pull rod cross lug 8 is larger than that of the pin shaft bolt 4-6, the front end of the flat-turning rocker arm combination 4 is provided with a special key bearing 4-2, the inner side of the special key bearing 4-2 is provided with a pressure glue injection 4-3 in a fit mode, the outer side of the pressure glue injection 4-3 is connected with a shock absorber cross lug 9, the front end and the rear end of the lug plate 2 are both connected with guard plates 6, the two guard plates 6 are symmetrically arranged about the vertical center line of the lug plate 2, one end of the flat-turning rocker arm combination 4 is connected with a connecting seat 3-4 through a movable shaft 5, the outer side of the connecting seat 3-4 is connected with a sleeve rod 3-3, the outer side of the sleeve rod 3-3 is connected with a pull rod combination 3, the outer side of the pull rod combination 3 is connected with a connecting rod 3-2, the outer side of the connecting rod 3-2 is connected with a connecting block 3-1, and the outer side of the connecting block 3-1 is connected with the lug plate 2.

As shown in fig. 1-5, the rear rocker arm swings, the horizontal rotation rocker arm is pulled by a pull rod to rotate, the other end of the horizontal rotation rocker arm pulls a shock absorber, the pulling force of the shock absorber acts on the horizontal rotation rocker arm in a reaction manner and generates a pulling force for preventing the rear rocker arm from moving through the pull rod, then the other end of the shock absorber also generates a pulling force for the rear rocker arm, as the rotation angle of the horizontal rotation rocker arm increases, the moment arm of the pull rod relative to the connecting line between a hanging point and a pivot of the counterweight rocker arm obviously decreases, the action moment arm of the shock absorber is far larger than that of the pull rod, the pulling force of the shock absorber reflects larger force on the pull rod, the moment ratio can be nonlinearly and rapidly increased along with the further rotation of the horizontal rotation rocker arm, the swing limit of the rear rocker arm is not formed by means of the stretching and limiting of the shock absorber, the instant impact when the shock absorber reaches the stretching limit can be well avoided, and as the number of the hanging points increases, the main bearing hanging point deviates from the middle part of the frame cross beam and the lower cross beam of the rear rocker arm, the bending stress of the hanging lug cross beam is greatly reduced, and the better tension 8978 zft is more convenient to use.

The working principle is as follows: when the rear rocker arm assembly suitable for the horizontal pull type shock absorber is used, firstly, the horizontal rotation and swing tension rod is utilized to generate rotation, then the other end of the shock absorber also generates tension force on the rear rocker arm, the tension arm of the tension rod and the tension arm of the connection line from the hanging point to the pivot of the balance weight rocker arm are obviously reduced, the shock of the shock absorber when the shock absorber is stretched to the limit can be well avoided, and along with the increase of the quantity of the hanging points, the deviation of the main load hanging points and the middle parts of the frame cross beam and the rear rocker arm lower cross beam greatly reduce the bending stress of the pull cross beam of the hangers, and better facilitates the use of the shock absorber in the later period.

Those not described in detail in this specification are well within the skill of the art.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, such as "connected," which may be 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

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 invention.

Claims

1. A rear rocker arm assembly suitable for a horizontal pull type shock absorber comprises a rear rocker arm welding main body (1) and guard plates (6) arranged at the front end and the rear end of the rear rocker arm welding main body (1), wherein the two guard plates (6) are equal in size;

it is characterized by also comprising:

the inner side of the rear rocker arm welding main body (1) is provided with an ear plate (2), and the length of the ear plate (2) is smaller than that of the rear rocker arm welding main body (1);

a pivot (7) is arranged on the inner side of the rear rocker arm welding main body (1), a pivot bushing (4-4) is connected to the outer side of the pivot (7) in a nested mode, and two ends of the pivot bushing (4-4) are connected to a pull rod lug (8) and a shock absorber lug (9) through the pan rocker arm main body (4-1) respectively;

one end of the horizontal rotation rocker arm assembly (4) is connected with a connecting seat (3-4) through a movable shaft (5), the outer side of the connecting seat (3-4) is connected with a loop bar (3-3), and the outer side of the loop bar (3-3) is connected with a pull rod assembly (3).

2. The rear rocker arm assembly for a horizontal pull type shock absorber according to claim 1, wherein: a horizontal rotation rocker arm combination (4) is arranged inside the rear rocker arm welding main body (1), the rear side of the horizontal rotation rocker arm combination (4) is connected with a pull rod lug (8) through a pin shaft bolt (4-6), and the diameter of the pull rod lug (8) is larger than that of the pin shaft bolt (4-6).

3. The rear rocker arm assembly for a horizontal pull type shock absorber according to claim 2, wherein: the front end of the horizontal rotation rocker arm combination (4) is provided with a special key bearing (4-2), the inner side of the special key bearing (4-2) is provided with a pressure glue injection (4-3) in a fitting manner, and the outer side of the pressure glue injection (4-3) is connected with a shock absorber lug (9).

4. The rear rocker arm assembly suitable for a horizontal pull type shock absorber according to claim 1, wherein: both ends all are connected with backplate (6) around otic placode (2) to two backplate (6) are the vertical center line symmetry setting about otic placode (2).

5. The rear rocker arm assembly for a horizontal pull type shock absorber according to claim 1, wherein: the outer side of one end of the pull rod combination (3) is connected to the connecting rod (3-2), the outer side of the connecting rod (3-2) is connected to the connecting block (3-1), and the outer side of the connecting block (3-1) is connected to the ear plate (2).