CN212690663U

CN212690663U - Hydro-pneumatic suspension

Info

Publication number: CN212690663U
Application number: CN202020693845.4U
Authority: CN
Inventors: 司万智
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2021-03-12
Anticipated expiration: 2030-04-29

Abstract

The utility model discloses an oil gas hangs, comprising a cylinder body, the cylinder body bottom is equipped with fixed ear, be equipped with the fixed orifices on the fixed ear, the inside special-shaped piston that is equipped with of cylinder body, be equipped with the sealing ring between special-shaped piston and the cylinder body, special-shaped piston bottom surface is equipped with the cushion valve, special-shaped piston cavity top is equipped with oil pipe, the diameter is wide department for the air-oil mixing chamber including the special-shaped piston cavity, the air-oil mixing chamber top is equipped with the gas pocket, fixed ear and hydraulic pressure pipe, the both sides of fixed ear are located to gas pocket and hydraulic pressure pipe branch, the special-shaped piston outside is equipped. Compared with the prior art, the utility model the advantage lie in: can alleviate the weight of whole car well, what adopt before is mostly the leaf spring external member to move away to avoid possible earthquakes, but leaf spring external member weight itself is just very big, can bring extra heavy burden for the car, uses the stress point of girder after this oil-gas suspension to increase, has promoted the travelling comfort of vehicle, has also reduced the cost of hanging.

Description

Hydro-pneumatic suspension

Technical Field

The utility model relates to a vehicle part field of moving away to avoid possible earthquakes specifically indicates an oil gas hangs.

Background

The suspension is a general term for all force-transmitting connecting devices between a frame or a load-bearing vehicle body and an axle or a wheel of an automobile, and has the functions of transmitting force and torque acting between the wheel and the frame, buffering impact force transmitted to the frame or the vehicle body from an uneven road surface, and reducing vibration caused by the impact force so as to ensure that the automobile can run smoothly. The hydro-pneumatic spring can be an independent suspension or a non-independent suspension, takes gas as an elastic medium and liquid as a force transmission medium, has good buffering capacity and vibration damping effect, can adjust the height of a frame, and is suitable for heavy vehicles and buses. The gas in the hydro-pneumatic spring is typically an inert gas, often nitrogen being selected. However, the traditional hydro-pneumatic suspension generally adopts single cylinder suspension, so that the buffer capacity and the buffer stroke are insufficient, and the oil leakage condition can be generated after long-time use.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an oil gas that can increase the buffer stroke hangs to above problem.

In order to solve the technical problem, the utility model provides a technical scheme does: the utility model provides an oil gas hangs, includes the cylinder body, the cylinder body bottom is equipped with fixed ear, be equipped with the fixed orifices on the fixed ear, the inside special-shaped piston that is equipped with of cylinder body, special-shaped piston is T type solid of revolution structure, adopt clearance fit between special-shaped piston and the cylinder body, be equipped with the sealing ring between special-shaped piston and the cylinder body, special-shaped piston bottom surface is equipped with the cushion valve, the inside cavity that is equipped with of special-shaped piston, the shape of cavity are T type solid of revolution shape, special-shaped piston cavity top is equipped with oil pipe, special-shaped piston cavity is the air-gas mixing chamber in the wide department of internal diameter, air pocket, fixed ear and hydraulic pressure pipe are equipped with the gas pocket at the both sides of fixed ear with hydraulic pressure pipe branch, the special-shaped piston outside is equipped with the.

Compared with the prior art, the utility model the advantage lie in: can alleviate the weight of whole car well, what adopt before is mostly the leaf spring external member to move away to avoid possible earthquakes, but leaf spring external member weight itself is just very big, can bring extra heavy burden for the car, uses the stress point of girder after this oil-gas suspension to increase, has promoted the travelling comfort of vehicle, has also reduced the cost of hanging.

As the improvement, the top of the connecting part of the cylinder body and the special-shaped piston is provided with an oil seal, the arrangement of the oil seal can further ensure the sealing performance, and the risk of oil leakage and air leakage is reduced.

As an improvement, the special-shaped piston and the telescopic cylinder are fixedly connected, the connection position is located on the outer side of the oil-gas mixing cavity, and the fixed connection can ensure that the telescopic cylinder cannot be separated when the telescopic cylinder reaches the maximum stroke.

As the improvement, the bottom of the connecting part of the telescopic cylinder and the cylinder body is provided with an oil seal, the arrangement of the oil seal can further ensure the sealing performance, and the risk of oil leakage and air leakage is reduced.

As an improvement, the diameter of the wide body of the special-shaped piston is the same as that of the cylinder body, the same diameter can ensure that the cavity of the telescopic cylinder is cylindrical, the condition of producing special-shaped parts is avoided, and the cost is reduced.

As the improvement, the iron pins are installed in the fixing holes in a matched mode and used for being connected with an automobile, the iron pins are connected, installation is facilitated, and installation working hours are reduced.

As an improvement, the sealing ring is a double sealing ring and is used for ensuring that the cylinder body cannot leak oil, and the sealing performance of the double sealing ring is further improved.

As the improvement, be equipped with the stopper between cylinder body and the special-shaped piston for prevent that special-shaped piston bounce-back from popping out the cylinder body after the pressurized, receive pressure at the car after, the cylinder body compresses to the limit and can produce the resilience, and the stopper can avoid the cylinder body to deviate from.

As an improvement, a limiting block is arranged between the cylinder body and the telescopic cylinder and used for preventing the cylinder body from rebounding and popping out of the telescopic cylinder after being pressed.

Drawings

FIG. 1 is a schematic diagram of a hydro-pneumatic suspension.

FIG. 2 is a schematic view of a configuration of the hydro-pneumatic suspension in a contracted state.

As shown in the figure: 1. the hydraulic suspension device comprises a cylinder body, 2, fixing lugs, 3, fixing holes, 4, a special-shaped piston, 5, a sealing ring, 6, a buffer valve, 7, an oil pipe, 8, an oil-gas mixing cavity, 9, an air hole, 10, a hydraulic pipe, 11, a telescopic cylinder, 12, an oil seal, 13, a girder, 14, a bridge, 15, tires, 16 and an oil-gas suspension.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

When the utility model is implemented, the oil-gas suspension device comprises a cylinder body 1, wherein the bottom of the cylinder body 1 is provided with a fixing lug 2, the fixing lug 2 is provided with a fixing hole 3, the inside of the cylinder body 1 is provided with a special-shaped piston 4, the special-shaped piston 4 is of a T-shaped revolving body structure, a clearance fit is adopted between the special-shaped piston 4 and the cylinder body 1, a sealing ring 5 is arranged between the special-shaped piston 4 and the cylinder body 1, the bottom surface of the special-shaped piston 4 is provided with a buffer valve 6, the inside of the special-shaped piston 4 is provided with a cavity, the shape of the cavity is of a T-shaped revolving body, the top of the cavity of the special-shaped piston 4 is provided with an oil pipe 7, the cavity of the special-shaped piston 4 is an oil-gas mixing cavity 8 at the wider inner diameter part, the top of the oil-gas, the outer side of the special-shaped piston 4 is provided with a telescopic cylinder 11, and a sealing ring 5 is arranged between the telescopic cylinder 11 and the cylinder body 1.

The top of the connecting part of the cylinder body 1 and the special-shaped piston 4 is provided with an oil seal 12, the arrangement of the oil seal can further ensure the sealing performance, and the risk of oil leakage and air leakage is reduced.

The special-shaped piston 4 and the telescopic cylinder 11 are fixedly connected, the connection position is arranged on the outer side of the oil-gas mixing cavity 8, and the fixed connection can ensure that the telescopic cylinder cannot be separated when the telescopic cylinder reaches the maximum stroke.

The bottom of the connecting part of the telescopic cylinder 11 and the cylinder body 1 is provided with an oil seal 12, the arrangement of the oil seal can further ensure the sealing performance, and the risk of oil leakage and air leakage is reduced.

The diameter of the wide body of the special-shaped piston 4 is the same as that of the cylinder body 1, the same diameter can ensure that the cavity of the telescopic cylinder is cylindrical, the condition of producing special-shaped parts is avoided, and the cost is reduced.

The iron pins are installed in the fixing holes 3 in a matched mode and used for being connected with an automobile, the iron pins are connected, installation is facilitated, and installation working hours are reduced.

The sealing ring 5 is a double sealing ring for ensuring that the cylinder body 1 does not leak oil, and the sealing performance is further improved by the double sealing ring.

Be equipped with the stopper between cylinder body 1 and the special-shaped piston 4 for prevent that special-shaped piston 4 bounce-back after the pressurized from popping out cylinder body 1, after the car received pressure, the cylinder body compression can produce the resilience to the limit, and the stopper can avoid the cylinder body to deviate from.

And a limiting block is arranged between the cylinder body 1 and the telescopic cylinder 11 and used for preventing the cylinder body 1 from rebounding to pop out of the telescopic cylinder 11 after being pressed.

The utility model discloses a theory of operation: through hydraulic pressure union coupling between two cylinder bodies, meet pothole road surface when the tire, air receives the pressure effect in No. 1 cylinder body, passes through the piston and passes through the oil pipe to liquid in No. 2 cylinder bodies, No. 2 cylinder body liquid increase, lets air pressure increase in the cylinder body through the piston to reach two cylinder body pressure balance, two long stroke cylinder body are connected, have further strengthened the compressive capacity of moving away to avoid possible earthquakes.

Furthermore, the terms "first", "second" and "first" 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" or "second" may explicitly or implicitly include one or more of that feature, and in the description of the invention, "plurality" means two or more unless explicitly specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may include, for example, fixed connections, detachable connections, 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 according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.

Claims

1. An oil gas hangs, includes cylinder body (1), its characterized in that: the oil cylinder is characterized in that a fixing lug (2) is arranged at the bottom of the cylinder body (1), a fixing hole (3) is formed in the fixing lug (2), a special-shaped piston (4) is arranged in the cylinder body (1), the special-shaped piston (4) is of a T-shaped revolving body structure, the special-shaped piston (4) and the cylinder body (1) are in clearance fit, a sealing ring (5) is arranged between the special-shaped piston (4) and the cylinder body (1), a buffer valve (6) is arranged on the bottom surface of the special-shaped piston (4), a cavity is arranged in the special-shaped piston (4), the cavity is of a T-shaped revolving body shape, an oil pipe (7) is arranged at the top of the cavity of the special-shaped piston (4), an oil-gas mixing cavity (8) is formed in the wider inner diameter position of the cavity of the special-shaped piston (4), an air hole (9), a fixing lug (2) and a hydraulic pipe (10) are arranged at the top, a telescopic cylinder (11) is arranged on the outer side of the special-shaped piston (4), and a sealing ring (5) is arranged between the telescopic cylinder (11) and the cylinder body (1).

2. The hydro-pneumatic suspension of claim 1, wherein: and an oil seal (12) is arranged at the top of the connecting part of the cylinder body (1) and the special-shaped piston (4).

3. The hydro-pneumatic suspension of claim 1, wherein: the special-shaped piston (4) and the telescopic cylinder (11) are fixedly connected and are positioned outside the oil-gas mixing cavity (8).

4. The hydro-pneumatic suspension of claim 1, wherein: and an oil seal (12) is arranged at the bottom of the connecting part of the telescopic cylinder (11) and the cylinder body (1).

5. The hydro-pneumatic suspension of claim 1, wherein: the diameter of the wide body of the special-shaped piston (4) is the same as that of the cylinder body (1).

6. The hydro-pneumatic suspension of claim 1, wherein: and an iron pin is arranged in the fixing hole (3) in a matched mode and is used for being connected with an automobile.

7. The hydro-pneumatic suspension of claim 1, wherein: the sealing ring (5) is a double sealing ring and is used for ensuring that the cylinder body (1) cannot leak oil.

8. The hydro-pneumatic suspension of claim 1, wherein: and a limiting block is arranged between the cylinder body (1) and the special-shaped piston (4) and used for preventing the special-shaped piston (4) from rebounding to pop out of the cylinder body (1) after being pressed.

9. The hydro-pneumatic suspension of claim 1, wherein: and a limiting block is arranged between the cylinder body (1) and the telescopic cylinder (11) and is used for preventing the cylinder body (1) from rebounding to pop out of the telescopic cylinder (11) after being pressed.