CN211288569U

CN211288569U - Hydraulic suspension with external inertia channel and inflatable limiting block

Info

Publication number: CN211288569U
Application number: CN201822107024.3U
Authority: CN
Inventors: 上官文斌; 简艳伟
Original assignee: South China University of Technology SCUT
Current assignee: South China University of Technology SCUT
Priority date: 2018-12-15
Filing date: 2018-12-15
Publication date: 2020-08-18
Anticipated expiration: 2028-12-15

Abstract

The utility model discloses a hydraulic pressure suspension with external inertia passageway and aerify stopper, including skeleton aluminium core, rubber owner spring, go up baffle, decoupling zero membrane, lower baffle, basement membrane, skeleton aluminium core, rubber owner spring pass through high temperature vulcanization and aluminium core inseparable bonding, rubber owner spring bottom and last baffle, decoupling zero membrane surround and form the liquid chamber, the decoupling zero membrane presss from both sides between last baffle and lower baffle, the baffle surrounds with decoupling zero membrane, basement membrane down and forms liquid chamber down, go up the inside built-in inertia passageway that is provided with intercommunication liquid chamber and lower liquid chamber of baffle down, it is provided with external inertia passageway with lower liquid chamber outside to go up the liquid chamber. The utility model discloses an external inertia passageway can change the parameter of inertia passageway in a flexible way to reach the performance design requirement of hydraulic pressure suspension. In addition, the limiting block has the characteristics of a rubber air spring by filling air into the X-direction limiting block, the adjustability is stronger, and the suspension can better meet the design requirement of nonlinear performance.

Description

Hydraulic suspension with external inertia channel and inflatable limiting block

Technical Field

The utility model relates to an automobile parts, in particular to hydraulic suspension, specifically a hydraulic suspension with external inertia passageway and aerify the stopper.

Background

The suspension is an important part for connecting the power assembly and the vehicle body, and has the following main functions: the suspension original piece is used as a bearing piece and supports the mass of the whole power assembly; limiting action: under the limit working condition of the automobile, the displacement of the power assembly is limited, and the dynamic interference between the power assembly and other parts of the engine compartment is avoided; vibration isolation effect: the two ends of the suspension element are respectively subjected to external road surface immediate excitation and engine working excitation, so that the mutual transmission of the two excitations is reduced.

The rubber suspension is dynamically hardened under high-frequency excitation and is not beneficial to vibration isolation, and the inertia channel-decoupling film type hydraulic suspension has large damping and can quickly attenuate the vibration from the ground under the action of low-frequency large-amplitude excitation when liquid flows through the inertia channel; the decoupling film floats up and down under the excitation action of high frequency and small amplitude, and at the moment, the decoupling film has small damping, so that the vibration of the power assembly can be effectively isolated from being transmitted to the automobile body when the automobile runs at high speed. The dynamic performance of the inertia channel-decoupling membrane type hydraulic suspension greatly depends on the parameters of the inertia channel, including the number, diameter, length and the like of the inertia channel, and the parameter requirements of the inertia channel required by design are difficult to meet due to the limited partition space between the upper liquid chamber and the lower liquid chamber in the hydraulic suspension. Therefore, the external variable parameter inertia channel can flexibly meet the requirement of the dynamic performance of the hydraulic suspension. In addition, the inflation limiting block has the characteristics of a rubber air spring, the weight is light, the suspension can meet the expected nonlinear performance requirement by changing the air pressure in the limiting block, and the design flexibility is increased.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solves the problem that inertia passageway-decoupling zero membrane type hydraulic pressure suspension inertia passageway is difficult to arrange, provides an external hydraulic pressure suspension of inertia passageway, can change the parameter of inertia passageway in a flexible way to reach hydraulic pressure suspension dynamic properties design target. Furthermore, the utility model discloses still provide on the basis of external inertia passageway hydraulic pressure suspension and aerify the stopper, aerify the stopper and have rubber air spring's characteristic, the quality is light, makes the suspension reach anticipated nonlinear performance requirement through the gas pressure that changes in the stopper.

The utility model provides a technical scheme that its technical problem adopted is:

a hydraulic suspension with an external inertia channel and an inflatable limiting block comprises a framework aluminum core, a rubber main spring, an upper partition plate, a decoupling film, a lower partition plate and a bottom film, wherein the framework aluminum core and the rubber main spring are tightly combined with the aluminum core through high-temperature vulcanization, the bottom of the rubber main spring, the upper partition plate and the decoupling film are enclosed to form an upper liquid chamber, the decoupling film is clamped between the upper partition plate and the lower partition plate, the decoupling film and the bottom film are enclosed to form a lower liquid chamber, and a bottom film fixing frame is fixed to the outer peripheral wall of the bottom film to seal the lower liquid chamber; the inner sides of the upper partition plate and the lower partition plate are provided with built-in inertia channels communicated with the upper liquid chamber and the lower liquid chamber, and the outer sides of the upper liquid chamber and the lower liquid chamber are provided with built-out inertia channels communicated with the upper liquid chamber and the lower liquid chamber through hoses.

Furthermore, X-direction collision blocks with inflation cavities are symmetrically arranged on two sides of the rubber main spring along the X direction.

Furthermore, a plurality of connecting holes are formed in the outer sides of the upper liquid chamber and the lower liquid chamber, and the hoses are in butt joint with the corresponding connecting holes to form an external inertia channel.

Further, the lengths of the hoses are the same or different.

Further, the cross-sectional shapes of the hoses are the same or different.

Further, the cross-sectional shape of each hose is circular or rectangular.

Further, the external inertia channels change the inertia channels through variable pipeline length, diameter, number and cross-sectional shape, so that the hydraulic suspension achieves the expected dynamic performance, and the flexibility of the hydraulic suspension design is increased.

Further, the gas pressure in the inflation cavity of the X-direction collision block can be adjusted. The inflatable limiting block has the characteristics of a rubber air spring, the weight is light, the suspension achieves ideal nonlinear performance by changing the air pressure in the limiting block, the air pressure is easy to change, and the flexibility of the design of the collision block is improved.

Furthermore, the edge of the bottom of the hydraulic suspension is provided with a liquid filling hole, and a sealing ball is arranged in the liquid filling hole.

Furthermore, the top of the rubber main spring is provided with a plurality of Z-direction collision blocks, and the side surface of the rubber main spring is provided with Y-direction collision blocks along the Y direction.

Compared with the prior art, the utility model overcomes the restriction of hydraulic mount's inner space structure to the inertia passageway parameter, adopt the structure that the inertia passageway is external to make the design become more nimble, change hydraulic mount's dynamic behavior through the parameter of adjusting external inertia passageway. In addition, compared with the existing pure rubber limiting block, the inflatable limiting block has the characteristics of a rubber air spring, and the adjustability of the air pressure in the limiting block is stronger than the hardness of rubber materials and the shape of the limiting block, so that the suspension can better meet the requirement of nonlinear performance.

Drawings

Fig. 1 is an isometric view of a hydraulic mount according to an embodiment of the present invention;

fig. 2 is a front view of a hydraulic mount according to an embodiment of the present invention;

fig. 3 is a left side view of a hydraulic mount of an embodiment of the present invention;

fig. 4 is a top view of a hydraulic mount according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view B-B of FIG. 4;

FIG. 6 is a schematic view of one arrangement of hydraulically suspended external inertial channels (different cross-sectional shapes and sizes);

FIG. 7 is a schematic view of another arrangement (different lengths) of the hydraulically suspended outboard inertance channels;

FIG. 8 is a schematic view of the assembly of the liquid filling hole and the sealing ball according to the embodiment of the present invention;

reference is made to the accompanying drawings in which: the device comprises an aluminum core 1, a rubber main spring 2, an upper liquid chamber 3, an upper liquid chamber hose connecting hole 4, an upper partition plate 5, an internal inertia channel 6, a decoupling membrane 7, a lower partition plate 8, a lower liquid chamber 9, a bottom membrane 10, a bottom membrane fixing frame 11, an external inertia channel 12, a sealing ball 13, a liquid filling hole 14, a collision block 15-X direction, a collision block 16-Z direction, a collision block 17-Y direction and gas 18.

Detailed Description

For a better understanding of the present invention, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

As shown in fig. 1 to 5, a hydraulic mount with an external inertia channel and an inflation limiting block comprises a framework aluminum core 1, a rubber main spring 2, an upper partition plate 5, a decoupling film 7, a lower partition plate 8 and a bottom film 10, wherein the framework aluminum core 1 and the rubber main spring 2 are tightly combined with the aluminum core 1 through high-temperature vulcanization, the bottom of the rubber main spring 2, the upper partition plate 5 and the decoupling film 7 surround to form an upper liquid chamber 3, the decoupling film 7 is clamped between the upper partition plate 5 and the lower partition plate 8, the decoupling film 7 and the bottom film 10 surround to form a lower liquid chamber 9, and a bottom film fixing frame 11 is fixed on the peripheral wall of the bottom film 10 to seal the lower liquid chamber; an internal inertia channel 6 for communicating the upper liquid chamber 3 and the lower liquid chamber 9 is arranged inside the upper partition plate 5 and the lower partition plate 8, and an external inertia channel 12 formed by communicating the upper liquid chamber 3 and the lower liquid chamber 9 through a hose is arranged outside the upper liquid chamber 3 and the lower liquid chamber 9. The outer sides of the upper liquid chamber 3 and the lower liquid chamber 9 are provided with a plurality of connecting holes 4, and the hoses are in butt joint with the corresponding connecting holes 4 to form an external inertia channel 12.

The top of the rubber main spring 2 is provided with a plurality of Z-direction collision blocks 16, the side surface of the rubber main spring is provided with Y-direction collision blocks 17 along the Y direction, the two sides of the rubber main spring 2 are symmetrically provided with X-direction collision blocks 15 with inflation cavities along the X direction, and the pressure of gas 18 in the inflation cavities of the X-direction collision blocks 15 can be adjusted. The inflatable limiting block has the characteristics of a rubber air spring, is light in weight, enables the nonlinear performance of the suspension to reach the expected design target by changing the air pressure in the limiting block, is beneficial to reducing the impact generated when the automobile is accelerated rapidly, and improves the smoothness of working conditions such as the rapid acceleration of the automobile. The gas pressure is easily changed, and the flexibility of the design of the collision block can be improved.

The lengths of the hoses are the same or different from one another as shown in the figures. The cross-sectional shape of each of the hoses is the same or different, such as circular or rectangular. The external inertia channel 12 changes parameters of the external inertia channel 12 through variable pipeline length, diameter, number and cross-sectional shape, so that the hydraulic suspension meets the expected dynamic performance requirement, and the flexibility of the hydraulic suspension design is increased, as shown in fig. 6, the external inertia channel has different cross-sectional shapes and sizes; as shown in fig. 7, the outboard inertia tracks have different lengths to achieve different dynamic performance requirements.

The present embodiment can change the parameters of the external inertia channel 12 by changing the number of pairs of holes, the length of the hose, the diameter of the hose and the cross-sectional shape of the hose, and utilize the flexible arrangement of the external inertia channel 12 to meet the dynamic performance requirements of the hydraulic mount.

As shown in fig. 8, a liquid filling hole 14 is formed in the edge of the bottom of the hydraulic suspension, and a sealing ball 13 is arranged in the liquid filling hole 14, so that liquid can be conveniently filled and drained.

The above-mentioned embodiment is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a hydraulic pressure suspension with external inertia passageway and aerify stopper which characterized in that: the rubber sealing device comprises a framework aluminum core (1), a rubber main spring (2), an upper partition plate (5), a decoupling film (7), a lower partition plate (8), a bottom film (10) and a bottom film fixing frame (11), wherein the framework aluminum core (1) and the rubber main spring (2) are tightly combined with the aluminum core (1) through high-temperature vulcanization, the bottom of the rubber main spring (2) is surrounded with the upper partition plate (5) and the decoupling film (7) to form an upper liquid chamber (3), the decoupling film (7) is clamped between the upper partition plate (5) and the lower partition plate (8), the lower partition plate (8) is surrounded with the decoupling film (7) and the bottom film (10) to form a lower liquid chamber (9), and the bottom film fixing frame (11) is fixed on the peripheral wall of the bottom film (10) to seal the lower liquid chamber; an internal inertia channel (6) communicated with the upper liquid chamber (3) and the lower liquid chamber (9) is arranged inside the upper partition plate (5) and the lower partition plate (8), and an external inertia channel (12) formed by communicating the upper liquid chamber (3) and the lower liquid chamber (9) through a hose is arranged outside the upper liquid chamber (3) and the lower liquid chamber (9).

2. The hydraulic mount with the external inertia track and the air inflation limiting block of claim 1, wherein: and X-direction collision blocks (15) with inflation cavities are symmetrically arranged on two sides of the rubber main spring (2) along the X direction.

3. The hydraulic mount with the external inertia track and the air inflation limiting block of claim 1, wherein: the outer sides of the upper liquid chamber (3) and the lower liquid chamber (9) are provided with a plurality of connecting holes (4), and the hoses are in butt joint with the corresponding connecting holes (4) to form an external inertia channel (12).

4. The hydraulic mount with the external inertia track and the air inflation limiting block of claim 1, wherein: the lengths of the hoses are the same or different.

5. The hydraulic mount with the external inertia track and the air inflation limiting block of claim 1, wherein: the cross-sectional shapes of the hoses are the same or different.

6. The hydraulic mount of claim 1 wherein: the cross section of each hose is circular or rectangular.

7. The hydraulic mount with the external inertia track and the air inflation limiting block of claim 1, wherein: the external inertia channel (12) changes the inertia channel through variable pipeline length, diameter, number and section shape to enable the hydraulic suspension to achieve the expected dynamic performance.

8. The hydraulic mount with the external inertia track and the air inflation limiting block as claimed in claim 2, wherein: the gas pressure in the inflation cavity of the X-direction collision block (15) can be adjusted.

9. The hydraulic mount with the external inertia track and the air inflation limiting block of claim 1, wherein: the edge of the bottom of the hydraulic suspension is provided with a liquid filling hole (14), and a sealing ball (13) is arranged in the liquid filling hole (14).

10. The hydraulic mount with the external inertia track and the air inflation limiting block of claim 1, wherein: the top of the rubber main spring (2) is provided with a plurality of Z-direction collision blocks (16), and the side surface is provided with Y-direction collision blocks (17) along the Y direction.