CN217633607U

CN217633607U - Automobile shock absorption buffer device

Info

Publication number: CN217633607U
Application number: CN202221972230.0U
Authority: CN
Inventors: 王国忠; 李克懂; 朱家林
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-10-21
Anticipated expiration: 2032-07-28

Abstract

The utility model discloses a shock-absorbing buffer of car, including the supporting mechanism, still including setting up be used for on the supporting mechanism with car body connection's coupling mechanism, still install the pneumatic mechanism that is used for the shock attenuation buffering on the supporting mechanism, pneumatic mechanism coupling mechanism respectively with the supporting mechanism connects. The beneficial effects are that: when the wheels vibrate up and down, a damping valve piston on a piston rod in the device does reciprocating motion in oil liquid, so that oil pressure difference is generated between an upper cavity and a lower cavity of the piston, hydraulic oil is pressed out from a working cavity to an oil outlet cavity through a constant-ratio overflow valve to form air chamber compression in a compression stage, and hydraulic oil is pressed out from an oil storage cavity to the working cavity through an oil inlet valve to form air chamber expansion in a rebound stage, so that vibration attenuation of an automobile is completed, driving comfort and driving stability are improved, and the influence of heat attenuation of the shock absorber can be effectively delayed because nitrogen in the air chamber is inert gas, and the safety of the device is improved.

Description

Automobile shock absorption buffer device

Technical Field

The utility model relates to a damping device technical field especially relates to a shock attenuation buffer for automobile.

Background

In the suspension system, because the elastic element is impacted to generate vibration, in order to improve the running smoothness of an automobile, a shock absorber is arranged in the suspension in parallel with the elastic element, and in order to attenuate the vibration, the working principle is that when the frame (or the automobile body) and the axle are vibrated to generate relative motion, a piston in the shock absorber moves up and down, and oil in a cavity of the shock absorber repeatedly flows into the other cavity from one cavity through different pores;

the utility model provides a utility model relates to a shock attenuation buffer unit of car that current application number CN201920614691.2 provided, including the shock attenuation buffer unit base, be provided with the axletree shaft hole on the shock attenuation buffer unit base, the axletree shaft hole is used for being connected with the axletree, shock attenuation buffer unit base both ends are provided with the go-between, install the connecting axle in the go-between, the connecting axle is installed in base extension rod bottom, through the connecting axle with the base extension rod with the shock attenuation buffer unit base is connected, the base extension rod is installed at shock attenuation buffer unit base both ends;

above-mentioned utility model neglected itself the design volume too big, the double spring adds the space that middle hydraulic pressure significantly reduced the installation bumper shock absorber, probably still can influence the wheel and twist reverse and the vibrations space of axle, brings unfavorable to driving, and only utilizes the hydraulic shock attenuation, and the hydraulic oil boiling point is low, and is sensitive to high temperature, does not have the shock attenuation substitute at the special case to bring the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a shock-absorbing buffer for automobile in order to solve above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

a damping device for automobile shock absorption comprises a supporting mechanism and a connecting mechanism which is arranged on the supporting mechanism and used for being connected with an automobile body, wherein an air pressure mechanism for shock absorption and buffering is further arranged on the supporting mechanism, and the air pressure mechanism and the connecting mechanism are respectively connected with the supporting mechanism;

the supporting mechanism comprises a cylinder body, a connecting disc is mounted on the cylinder body, the top end of the connecting disc is connected with a damping spring, and the top end of the damping spring is connected with a fixed disc;

the connecting mechanism comprises an axle connector arranged at the bottom end of the cylinder body and a boss arranged at the top end of the fixed disc, and a vehicle body connector is arranged on the boss;

the pneumatic mechanism comprises a piston rod installed at the center of the bottom end of the fixed disc, an oil seal is installed at the joint of the piston rod and the cylinder body, a damping valve piston is arranged at the bottom end of the piston rod, an oil inlet valve is arranged on one side of the damping valve piston, a proportional overflow valve is arranged on the other side of the damping valve piston, an oil storage cavity is arranged between the damping valve piston and the oil seal, an isolation piston is arranged below the damping valve piston, a working cavity is arranged between the isolation piston and the damping valve piston, and an air chamber is arranged below the isolation piston.

Further setting: the cylinder body with connection pad fixed connection, the connection pad with damping spring welds, damping spring with the fixed disk welding.

Further setting: the axle connector is fixedly connected with the cylinder body.

Further setting: the boss with fixed disk fixed connection, the automobile body connector with boss fixed connection.

Further setting: the piston rod is fixedly connected with the fixed disc, the oil seal is fixedly connected with the cylinder body, and the piston rod is respectively connected with the oil seal and the cylinder body in a sliding manner.

Further setting: the damping valve piston is fixedly connected with the piston rod, the damping valve piston is slidably connected with the cylinder body, and the isolation piston is slidably connected with the cylinder body.

Compared with the prior art, the beneficial effects of the utility model are as follows:

when the wheel vibrates up and down, a damping valve piston on a piston rod in the device does reciprocating motion in oil liquid, so that oil pressure difference is generated between an upper cavity and a lower cavity of a working piston, hydraulic oil is pressed out from the working cavity to an oil outlet cavity through a fixed-ratio overflow valve to form air chamber compression in a compression stage, and hydraulic oil is pressed out from an oil storage cavity to the working cavity through an oil inlet valve to form air chamber expansion in a rebound stage, so that vibration attenuation of an automobile is completed, driving comfort and driving stability are improved, and the influence of thermal attenuation of a shock absorber can be effectively delayed because nitrogen in the air chamber is inert gas, so that the whole shape design of the device is uniform and dry, a larger space on the inner side of the wheel cannot be occupied, a larger up-and-down floating space is also provided for an axle, and a driver can feel more relaxed driving experience.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a first structural schematic diagram of a shock-absorbing buffer device for an automobile according to the present invention;

fig. 2 is a schematic front sectional view of a shock absorbing device for an automobile according to the present invention;

fig. 3 is a schematic right-view structural diagram of the damping device for automobile shock absorption according to the present invention;

fig. 4 is a schematic view of a top view structure of the shock absorbing buffer device for a vehicle of the present invention.

The reference numerals are illustrated below:

1. a support mechanism; 2. a connecting mechanism; 3. a pneumatic mechanism; 11. a cylinder body; 12. a damping spring; 13. fixing the disc; 14. connecting the disc; 21. an axle connector; 22. a vehicle body connector; 23. a boss; 31. a piston rod; 32. oil sealing; 33. an oil storage chamber; 34. a damping valve piston; 35. an oil inlet valve; 36. a constant-ratio overflow valve; 37. a working chamber; 38. an isolation piston; 39. an air chamber.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "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 referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified 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 meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1 to 4, a shock-absorbing buffer device for an automobile comprises a support mechanism 1, and further comprises a connecting mechanism 2 arranged on the support mechanism 1 and used for connecting with an automobile body, wherein an air pressure mechanism 3 used for shock absorption and buffering is further arranged on the support mechanism 1, and the air pressure mechanism 3 and the connecting mechanism 2 are respectively connected with the support mechanism 1;

in this embodiment: the supporting mechanism 1 comprises a cylinder body 11, a connecting disc 14 is fixedly connected to the cylinder body 11, a damping spring 12 is welded at the top end of the connecting disc 14, a fixed disc 13 is welded at the top end of the damping spring 12, and the damping spring 12 is used for performing basic damping buffering when a vehicle body vibrates;

in this embodiment: the connecting mechanism 2 comprises an axle connector 21 fixedly connected to the bottom end of the cylinder body 11 and used for connecting the equipment with an axle, and also comprises a boss 23 fixedly connected to the top end of the fixed disc 13, wherein the boss 23 is fixedly connected with a vehicle body connector 22 and used for connecting the equipment with a vehicle body or a vehicle frame;

in this embodiment: the air pressure mechanism 3 comprises a piston rod 31 fixedly connected to the center of the bottom end of the fixed disc 13, an oil seal 32 is installed at the connection position of the piston rod 31 and the cylinder 11, the oil seal 32 is used for preventing internal oil from flowing out when the piston rod 31 reciprocates, a damping valve piston 34 is fixedly connected to the bottom end of the piston rod 31, one side of the damping valve piston 34 is provided with an oil inlet valve 35, the other side of the damping valve piston is provided with a constant ratio overflow valve 36, an oil storage cavity 33 is arranged between the damping valve piston 34 and the oil seal 32, an isolation piston 38 is arranged below the damping valve piston 34, a working cavity 37 is arranged between the isolation piston 38 and the damping valve piston 34, and an air chamber 39 is arranged below the isolation piston 38.

The utility model discloses theory of operation and use flow: when the wheels vibrate up and down, the outer side of the cylinder body 11 is buffered by the damping spring 12, the piston rod 31 inside the cylinder body 11 repeatedly moves up and down at the joint with the cylinder body 11, the damping valve piston 34 on the piston rod 31 reciprocates in oil in the oil storage cavity 33 and the working cavity 37, so that an oil pressure difference is generated between an upper cavity and a lower cavity of the damping valve piston 34, in a compression stage, the hydraulic oil is pressed out from the working cavity 37 to the oil storage cavity 33 through the proportional relief valve 36 to form an air chamber 39 for compression, and in a rebound stage, the hydraulic oil is pressed out from the oil storage cavity 33 to the working cavity 37 through the oil inlet valve 35 to form an air chamber 39 for expansion, so that the damping and buffering of the automobile are completed.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. A shock-absorbing buffer device for an automobile, which comprises a supporting mechanism (1), and is characterized in that: the vehicle body shock absorption device is characterized by further comprising a connecting mechanism (2) which is arranged on the supporting mechanism (1) and used for being connected with a vehicle body, an air pressure mechanism (3) used for shock absorption and buffering is further mounted on the supporting mechanism (1), and the air pressure mechanism (3) and the connecting mechanism (2) are respectively connected with the supporting mechanism (1);

the supporting mechanism (1) comprises a cylinder body (11), a connecting disc (14) is installed on the cylinder body (11), the top end of the connecting disc (14) is connected with a damping spring (12), and the top end of the damping spring (12) is connected with a fixed disc (13);

the connecting mechanism (2) comprises an axle connector (21) arranged at the bottom end of the cylinder body (11) and a boss (23) arranged at the top end of the fixed disc (13), and a vehicle body connector (22) is arranged on the boss (23);

pneumatic mechanism (3) are including installing piston rod (31) at fixed disk (13) bottom center, piston rod (31) with oil blanket (32) are installed to cylinder body (11) junction, piston rod (31) bottom is provided with damping valve piston (34), damping valve piston (34) one side is provided with oil feed valve (35), and the opposite side is provided with scaling overflow valve (36), damping valve piston (34) with be provided with oil storage chamber (33) between oil blanket (32), damping valve piston (34) below is provided with isolation piston (38), isolation piston (38) with be provided with working chamber (37) between damping valve piston (34), isolation piston (38) below is provided with air chamber (39).

2. The automobile shock-absorbing buffer device according to claim 1, wherein: the cylinder body (11) with connection pad (14) fixed connection, connection pad (14) with damping spring (12) welding, damping spring (12) with fixed disk (13) welding.

3. The automobile shock-absorbing buffer device according to claim 1, wherein: the axle connector (21) is fixedly connected with the cylinder body (11).

4. The automobile shock-absorbing buffer device according to claim 1, wherein: boss (23) with fixed disk (13) fixed connection, automobile body connector (22) with boss (23) fixed connection.

5. The automobile shock-absorbing buffer device according to claim 1, wherein: piston rod (31) with fixed disk (13) fixed connection, oil blanket (32) with cylinder body (11) fixed connection, piston rod (31) respectively with oil blanket (32) cylinder body (11) sliding connection.

6. The automobile shock-absorbing buffer device according to claim 1, wherein: the damping valve piston (34) is fixedly connected with the piston rod (31), the damping valve piston (34) is in sliding connection with the cylinder body (11), and the isolation piston (38) is in sliding connection with the cylinder body (11).