CN215831027U - Hydraulic bushing for vehicle - Google Patents

Abstract

The utility model discloses a vehicle hydraulic bushing, which comprises an inner pipe and an outer pipe which are mutually sleeved, wherein an elastic buffer part is arranged between the inner pipe and the outer pipe, an annular flow passage plate is arranged on the peripheral side of the elastic buffer part, a plurality of first liquid chambers are formed between the annular flow passage plate and the elastic buffer part, a second liquid chamber is formed between the annular flow passage plate and the outer pipe, a plurality of flow passage holes are formed in the annular flow passage plate, and the first liquid chambers and the second liquid chambers are mutually communicated. This hydraulic bushing for vehicle is provided with annular flow passage board between elastic buffer and outer tube, the inboard and the elastic buffer of annular flow passage board form a plurality of first liquid chambeies, its outside forms the second liquid chamber with the outer tube, when the hydraulic bushing for vehicle receives various external vibrations or impact, liquid is through the second liquid chamber circulation reciprocating flow between a plurality of first liquid chambeies, further buffering damping, the second flow passage groove on the annular flow passage board can set up different runner cross-sectional area sizes and make the damping effect adjustable.

Description

Hydraulic bushing for vehicle

Technical Field

The utility model relates to the field of bushings, in particular to a hydraulic bushing for a vehicle.

Background

In modern society, with the improvement of quality of life of people, the car has become the indispensable vehicle of most people, and the travelling comfort is the essential factor of considering at first when people purchase and use the car always, and in order to reduce the vibration that the vehicle produced in the driving process, most cars can choose to set up the connection structure of chassis suspension as the flexonics, wherein, set up automobile-used hydraulic pressure bush as the most common flexonics implementation means, automobile-used hydraulic pressure bush can reduce the vibration that comes from the external world in order to guarantee the stationarity of vehicle driving process.

The hydraulic bushing for the automobile can well meet the requirements of high rigidity and high damping of the automobile on vibration reduction and noise reduction under the working conditions of low frequency and large amplitude, but the existing hydraulic bushing for the automobile is formed by a closed liquid chamber between an outer pipe and a rubber part to store liquid, so that liquid leakage easily occurs, the damping effect is not obvious, the damping is not adjustable, and the NVH performance of the automobile is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a vehicle hydraulic bushing, and aims to solve the technical problems that liquid leakage is easy to occur and damping effect is not obvious and damping is not adjustable in the conventional vehicle hydraulic bushing.

In order to achieve the above object, the present invention provides a hydraulic bushing for a vehicle, including an inner tube and an outer tube that are sleeved with each other, wherein an elastic buffer member is disposed between the inner tube and the outer tube, an annular flow passage plate is disposed on a peripheral side of the elastic buffer member, a plurality of first liquid chambers are formed between the annular flow passage plate and the elastic buffer member, a second liquid chamber is formed between the annular flow passage plate and the outer tube, a plurality of flow passage holes are disposed on the annular flow passage plate, and each of the first liquid chambers and the second liquid chamber are communicated with each other.

Preferably, the inner side of the elastic buffer part is provided with a shell part connected with the outer wall of the inner tube, and the outer side of the elastic buffer part is provided with a sealing rib group arranged along the axial direction of the inner tube.

Preferably, automobile-used hydraulic bushing still establishes respectively including the cover the locating part at the two port departments of shell, the shell with inner tube interference fit.

Preferably, two ports of the shell are respectively provided with an annular step part which is recessed along the radial direction of the shell and used for installing the limiting part.

Preferably, the upper end of the elastic buffer is provided with a plurality of first positioning parts distributed along the circumferential direction of the elastic buffer.

Preferably, the annular flow channel plate comprises a first flow channel plate and a second flow channel plate which are butted with each other, and the first flow channel plate and the second flow channel plate are fixedly inserted into each other.

Preferably, the two ends of the annular runner plate are respectively provided with a second positioning part, the peripheral sides of the annular runner plate are provided with second runner grooves, and the runner ports are located in the second runner grooves.

Preferably, an inner skeleton is arranged in the elastic buffer part.

Preferably, the elastic buffer and the inner tube are vulcanized into a whole through rubber.

The utility model has the beneficial effects that: this hydraulic bushing for vehicle is provided with annular flow passage board between elastic buffer and outer tube, the inboard and the elastic buffer of annular flow passage board form a plurality of first liquid chambeies, its outside forms the second liquid chamber with the outer tube, when the hydraulic bushing for vehicle receives various external vibrations or impact, liquid is through the second liquid chamber circulation reciprocating flow between a plurality of first liquid chambeies, further buffering damping, the second flow passage groove on the annular flow passage board can set up different runner cross-sectional area sizes and make the damping effect adjustable.

Drawings

FIG. 1 is an exploded view of a hydraulic bushing for a vehicle according to the present invention;

FIG. 2 is a cross-sectional view of the hydraulic bushing for a vehicle of the present invention;

FIG. 3 is a schematic structural view of the elastomeric damper of the hydraulic bushing for a vehicle of the present invention;

FIG. 4 is a partial enlarged view of portion A of FIG. 3;

FIG. 5 is a cross-sectional view of the elastomeric cushion of the hydraulic bushing for a vehicle of the present invention;

FIG. 6 is a schematic structural view of a circumferential runner plate of the hydraulic bushing for a vehicle according to the present invention;

fig. 7 is a schematic structural view of an inner frame of the hydraulic bushing for a vehicle of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the present invention and should not be construed as limiting the present invention, and all other embodiments that can be obtained by one skilled in the art based on the embodiments of the present invention without inventive efforts shall fall within the scope of protection of the present invention.

The utility model provides a vehicle hydraulic bushing, which comprises an inner tube 1 and an outer tube 2 which are mutually sleeved, wherein an elastic buffer part 3 is arranged between the inner tube 1 and the outer tube 2, an annular flow passage plate 4 is arranged on the peripheral side of the elastic buffer part 3, a plurality of first liquid chambers 5 are formed between the annular flow passage plate 4 and the elastic buffer part 3, a second liquid chamber 6 is formed between the annular flow passage plate 4 and the outer tube 2, a plurality of flow passage holes 41 are arranged on the annular flow passage plate 4, and the first liquid chambers 5 are mutually communicated with the second liquid chambers 6.

In the above embodiment, the outer tube 2 is sleeved on the elastic buffer member 3, the liquid is sealed between the elastic buffer member 3 and the outer tube 2, when the hydraulic bushing for a vehicle is subjected to vibration or impact from the outside, and the liquid in the plurality of first liquid chambers 5 formed between the annular flow passage plate 4 and the elastic buffer member 3 is subjected to vibration or impact from the outside, the liquid in one of the first liquid chambers 5 flows out from the flow passage hole 41, passes through the second liquid chamber 6 formed between the annular flow passage plate 4 and the outer tube 2, and flows into the other of the first liquid chambers 5 from the flow passage hole 41 on the other annular flow passage plate 4, and since the sealed liquid flows back and forth in the two first liquid chambers 5 through the second flow passage grooves 42 on the annular flow passage plate 4, the sealed liquid has certain damping performance and better vibration and noise reduction functions than the hydraulic bushing for a vehicle without using the annular flow passage plate 4, the annular flow passage plate 4 can adjust the cross-sectional area of the second flow passage grooves 42 as required to increase or decrease the cross-sectional area of the liquid in the hydraulic bushing for a vehicle of the utility model And the damping performance of the hydraulic bushing is suitable for the NVH performance requirements of different automobiles.

In a preferred embodiment, referring to fig. 3, the inner side of the elastic buffer 3 is provided with a shell 31 connected to the outer wall of the inner tube, the outer side of the elastic buffer 3 is provided with a sealing rib group 32 axially disposed along the inner tube 1, in this embodiment, the shell 31 on the elastic buffer 3 is integrally connected to the outer wall of the inner tube, the outer side of the elastic buffer 3 is provided with a sealing rib group 32 axially disposed along the inner tube 1 at predetermined intervals, the sealing rib group 32 is integrally formed when the elastic buffer 3 is molded, and protrudes circumferentially along the elastic buffer 3, the sealing rib group 32 and the outer tube 2 are in interference fit, and after the outer tube 2 is sleeved on the elastic buffer 3, the outer tube 2 is applied with an external force to further compress the sealing rib group 32, thereby achieving a sealing effect.

In a preferred embodiment, referring to fig. 2 and 3, the hydraulic bushing for a vehicle of the present invention further includes limiting members 7 respectively sleeved at two ports of the shell 31, the limiting members 7 are in interference fit with the shell 31, in this embodiment, the rigidity of the limiting members 7 is greater than the rigidity of the inner tube 1, the rigidity of the inner tube 1 is enhanced by the limiting members 7 disposed at the two ports of the shell 31, and the axial runout and deformation of the elastic buffer member 3 can be simultaneously limited, specifically, the limiting members 7 are provided with tube openings having an inner diameter slightly smaller than the outer diameter of the shell 31, so that the two are in interference fit and not easy to loosen, the two ends of the tube openings are symmetrically provided with bosses vertically protruding along the mounting surfaces thereof, and an operator can apply an external force along the axial direction of the inner tube 1 by holding the bosses, thereby quickly disassembling and assembling the limiting members 7.

In a preferred embodiment, referring to fig. 3 and 4, the two ports of the shell 31 are respectively provided with annular step portions 311 recessed along the radial direction thereof for installing the position-limiting member 7, in this embodiment, the annular step portions 311 provide the position-limiting and positioning functions for installing the position-limiting member 7.

In a preferred embodiment, referring to fig. 5, the outer side of the elastic buffer 3 is configured with two first channel grooves 33 distributed around the circumference thereof, and two sides of the first channel grooves 33 are provided with annular abutting parts 34 abutting against the annular channel plate 4, in this embodiment, the annular channel plate 4 abuts against the annular abutting parts 34, and the first liquid chamber 5 is formed between the inner side of the annular channel plate 4 and the first channel grooves 33.

In a preferred embodiment, referring to fig. 3, the upper end of the elastic buffer member is provided with a plurality of first positioning portions 35 distributed along the circumferential direction thereof, and in this embodiment, the first positioning portions 35 are used for positioning when an operator uses a clamping tool to clamp the hydraulic bushing for a vehicle.

In a preferred embodiment, referring to fig. 6, the annular flow channel plate 4 includes a first flow channel plate 43 and a second flow channel plate 44 that are butted with each other, and the first flow channel plate 43 and the second flow channel plate 44 are inserted and fixed, in this embodiment, the annular flow channel plate 4 is designed in a split type for simple assembly and disassembly, both ends of the two flow channel plates are respectively provided with a plug or a socket, the two flow channel plates are rapidly inserted and combined with each other to form the annular flow channel plate 4, and the two flow channel plates can also be connected by a snap-fit method, which can be selected as required.

In a preferred embodiment, referring to fig. 6, the two ends of the annular flow channel plate 4 are respectively provided with a second positioning portion 45, the circumferential side of the annular flow channel plate 4 is provided with a second flow channel groove 42, and the flow channel opening 41 is located in the second flow channel groove 42. In this embodiment, the second positioning portion 45 is used for providing a mounting fool-proof effect when the annular flow channel 4 is installed on the elastic buffer 3 in a ring-buckle manner, the flow channel port 41 is located in the second flow channel groove 42, the flow channel port is a through hole communicating the inner side and the outer side of the annular flow channel plate 4, the second flow channel groove 42 is a groove which is arranged on the circumferential side of the annular flow channel plate 4 and is recessed inwards along the outer side thereof, and the damping effect of the automotive hydraulic bushing of the utility model can be adjusted according to the sizes of the cross sections of the grooves which are arranged differently.

In a preferred embodiment, referring to fig. 7, an inner frame 8 is disposed in the elastic buffer 3, in this embodiment, the inner frame 8 is made of steel alloy, the strength of the whole elastic buffer is improved by the inner frame 8 disposed in the elastic buffer 3, and the inner frame 8 can be disposed in different shapes according to the shape of the elastic buffer 3.

In a preferred embodiment, the elastic buffer member 3 and the inner tube 1 are integrally vulcanized by rubber, and in this embodiment, the elastic buffer member 3 and the inner tube 1 are integrally connected by rubber vulcanization, so that the integrally connected structure has higher strength and better stability.

The above description is only a part of or preferred embodiments of the present invention, and neither the text nor the drawings should be construed as limiting the scope of the present invention, and all equivalent structural changes, which are made by using the contents of the present specification and the drawings, or any other related technical fields, are included in the scope of the present invention.

Claims (9)

1. A hydraulic bushing for a vehicle is characterized by comprising an inner pipe and an outer pipe which are sleeved with each other, wherein an elastic buffering part is arranged between the inner pipe and the outer pipe, annular runner plates are arranged on the peripheral sides of the elastic buffering part, a plurality of first liquid chambers are formed between the annular runner plates and the elastic buffering part, a second liquid chamber is formed between the annular runner plates and the outer pipe, a plurality of runner holes are formed in the annular runner plates, and the first liquid chambers are communicated with the second liquid chambers;

the inner side of the elastic buffer part is provided with a shell part connected with the outer wall of the inner tube, and the outer side of the elastic buffer part is provided with a sealing rib group arranged along the axial direction of the inner tube.

2. The vehicular hydraulic bushing according to claim 1, further comprising stoppers respectively sleeved at two ports of the housing, wherein the stoppers are in interference fit with the housing.

3. The vehicular hydraulic bushing according to claim 2, wherein the casing portion is provided at both ends thereof with annular stepped portions recessed in a radial direction thereof for mounting the retainer, respectively.

4. The vehicular hydraulic bushing according to claim 1, wherein the elastic buffer member is configured at an outer side thereof with two first flow channel grooves circumferentially distributed therearound, and annular abutting portions abutting against the annular flow channel plate are provided at both sides of the first flow channel grooves.

5. The hydraulic bushing as claimed in claim 1, wherein the upper end of the elastic buffer member is provided with a plurality of first positioning portions distributed along a circumferential direction thereof.

6. The vehicular hydraulic bushing according to claim 1, wherein the annular runner plate includes a first runner plate and a second runner plate that are butted against each other, and the first runner plate and the second runner plate are fixed by being inserted into each other.

7. The vehicular hydraulic bushing according to claim 1, wherein second positioning portions are provided at both ends of the annular flow passage plate, respectively, and second flow passage grooves are provided on a circumferential side of the annular flow passage plate, and the flow passage port is located in the second flow passage grooves.

8. The vehicular hydraulic bushing of claim 1, wherein an inner frame is provided in the elastic buffer member.

9. The vehicular hydraulic bushing according to claim 1, wherein the elastic buffer is integrally vulcanized with the inner tube by rubber.

Images