CN206968328U

CN206968328U - A kind of suspension bushes

Info

Publication number: CN206968328U
Application number: CN201720885758.7U
Authority: CN
Inventors: 窦德海
Original assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely New Energy Commercial Vehicle Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely New Energy Commercial Vehicle Co Ltd
Priority date: 2017-07-20
Filing date: 2017-07-20
Publication date: 2018-02-06
Anticipated expiration: 2027-07-20

Abstract

The utility model provides a kind of suspension bushes, is related to automobile technical field.Suspension bushes of the present utility model include inner sleeve, outer tube and rubber.Wherein, inner sleeve is the cylinder with central through hole, and at least a portion of the cylinder outside is the lug boss to radial direction.Outer tube is hollow cylinder, and the lug boss of the inner sleeve is set in the middle vacancy of the outer tube, and at least a portion of the inner sleeve is outside the outer tube.Rubber is arranged at the hollow bulb of the outer tube between the inner sleeve and the outer tube.Wherein, it is arranged at the both ends of the cylinder of the outer tube to radially bending.It is arranged to, to radially bending, carry out undergauge processing, add the rigidity radially, axially with beat direction at the both ends of the cylinder of outer tube of the present utility model, while adds the press fitting efficiency of bushing, greatly reduces the failure of press fitting failure.

Description

A kind of suspension bushes

Technical field

Automobile technical field is the utility model is related to, more particularly to a kind of suspension bushes.

Background technology

With the higher and higher requirement such as the comfortableness to automobile, handling, many interface positions of its suspension employ rubber The connection of glue bushing.The use of rubber bushing, greatly improve the NVH performances of vehicle and handling, its mitigation on chassis Power and the transmission of vibration between structural member, and isolate certain high-frequency vibration, adjust different directions suspension it is firm Degree and flexibility.Simultaneously bushing instead of it is original be rigidly connected, it must possess certain radial rigidity, whole outstanding to support Frame.It can be said that when the modern times are suspended in its performance of adjustment, bushing is the very important part that must be adjusted.

The bushing of current main-stream is, it is necessary to possess certain radial rigidity in vehicle above-below direction, to support whole front overhang. Possesses certain rigidity in vehicle left and right directions, to ensure vehicle lateral flexibility.Possess certain rigidity in vehicle fore-and-aft direction, To ensure flexibility before and after vehicle.Meanwhile in whole mechanism kinematic, possess certain beat rigidity, torsional rigidity.Traditional lining Set is that can not meet the needs of all directions rigidity, and vehicle and compliance in suspension performance improve space in the presence of very big.

Utility model content

A purpose of the present utility model is to provide for a kind of suspension bushes for meeting various aspects of performance.

Especially, the utility model provides a kind of suspension bushes, including：

Inner sleeve, for the cylinder with central through hole, at least a portion of the cylinder outside is to radially extending Lug boss；

Outer tube, is hollow cylinder, and the lug boss of the inner sleeve is set in the middle vacancy of the outer tube, institute At least a portion of inner sleeve is stated outside the outer tube；

Rubber, it is arranged at the hollow bulb of the outer tube between the inner sleeve and the outer tube；

Wherein, it is arranged at the both ends of the cylinder of the outer tube to radially bending.

Further, the outer tube includes hollow cylindrical tube portion and positioned at cylindrical tube portion both ends The bending part at place, the diameter of the stereochemical structure that the bending part is formed circumferentially are less than the cylindrical tube circumferentially straight Footpath.

Further, the girth sheets that the bending part includes circumferentially gradually changing, including first end and the second end, institute First end is stated to be connected with the cylindrical tube portion, and the circumferential diameter from the first end at the second end It is gradually reduced.

Further, the bending part is from the second end to a diameter of linear increase of the circumference of the first end, So that the section of the bending part is straight line.

Further, the bending part is from the second end to a diameter of non-linear increasing of the circumference of the first end It is long so that the section of the bending part is arc.

Further, the radial direction vertical range of the second end of the bending part and the first end is described outer The half of the radial direction radius of sleeve pipe and outermost radial direction semidiameter at the non-lug boss of inner sleeve.

Further, the rubber includes：

First rubber section, it is filled at the hollow bulb between the cylindrical tube portion and the inner sleeve；With

Second rubber section, be a thin layer, be adhered on the inside of the bending part, and with first rubber section one into Type.

Further, the rubber is vulcanization rubber, is molded to be formed using high pressure.

Further, for the boss in the middle part of the inner sleeve, the lug boss outermost is circular arc Shape and arc is connected between the non-lug boss of the inner sleeve, the both ends of the inner sleeve exposed to the outer tube it Outside, the bending part is between the end of the lug boss and the inner sleeve.

Further, the section outmost turns vertically of the lug boss are formed as a circle, and the circular circle The heart overlaps with the geometric center of the suspension bushes.

It is arranged to, to radially bending, carry out undergauge processing at the both ends of the cylinder of outer tube of the present utility model, The rigidity radially, axially with beat direction is added, while adds the press fitting efficiency of bushing, greatly reduces press fitting failure Failure；The end bending of outer tube, and make rubber be adhered to the inner side of the bending part, add outer tube and rubber Connection area, further lift the axial rigidity of whole bushing.

Further, rubber is molded using high pressure and is radially compressed processing, bushing is in elastic compression Working condition, the working condition using elastic stretching is avoided, so as to avoid the reduction of modulus of elasticity.

Further, arc convex portion is set up at inner sleeve, reduces radial direction rubber thickness, keeps rubber hardness constant In the case of, radial rigidity and axial rigidity are improved, the displacement of suspension radial direction is reduced, have adjusted the flexibility of suspension；Lug boss Radial section outmost turns at the center of circle of circle that is formed overlapped with the cluster center of whole bushing, answer substantially reducing bushing Power is concentrated, the life-span of lifting bushing.

According to the accompanying drawings will be more to the detailed description of the utility model specific embodiment, those skilled in the art Add clear of the present utility model above-mentioned and other purposes, advantages and features.

Brief description of the drawings

It is described in detail by way of example, and not by way of limitation with reference to the accompanying drawings hereinafter more of the present utility model specific real Apply example.Identical reference denotes same or similar part or part in accompanying drawing.It should be appreciated by those skilled in the art that What these accompanying drawings were not necessarily drawn to scale.In accompanying drawing：

Fig. 1 is the axial sectional view according to the suspension bushes of the utility model one embodiment；

Fig. 2 is the partial enlarged drawing of the outer tube bending part shown in Fig. 1；

Fig. 3 is the axial sectional view according to the suspension bushes of another embodiment of the present utility model.

Embodiment

Fig. 1 schematically illustrates the axial sectional view of the suspension bushes 100 of the utility model one embodiment.This implementation In example, suspension bushes 100 are general can to include inner sleeve 20, outer tube 10 and rubber 30, and inner sleeve 20 for The cylinder of central through hole, at least a portion of the cylinder outside is to the lug boss 21 radially extended.During outer tube 10 is Empty cylinder, the lug boss 21 of the inner sleeve 20 are set in the middle vacancy of the outer tube 10, the inner sleeve 20 At least a portion is outside the outer tube 10.Rubber 30 is arranged on the institute between the inner sleeve 20 and the outer tube 10 At the hollow bulb for stating outer tube 10.Wherein, it is arranged at the both ends of the cylinder of the outer tube 10 to radially bending.

As shown in figure 1, the outer tube 10 includes hollow cylindrical tube portion 11 and positioned at the cylindrical tube portion Bending part 12 at 11 both ends, the diameter of the stereochemical structure that the bending part 12 is formed circumferentially are less than the cylindrical tube The diameter of body circumferentially.It is arranged to, to radially bending, carry out at the both ends of the cylinder of outer tube 10 of the present utility model Undergauge processing, adds the rigidity radially, axially with beat direction, while adds the press fitting efficiency of bushing, greatly reduces It is pressed the failure of failure.

The girth sheets that the bending part 12 includes circumferentially gradually changing, including first end 13 and the second end 14, it is described First end 13 is connected with the cylindrical tube portion 11, and the week from the first end 13 at the second end 14 It is gradually reduced to diameter.

As a kind of embodiment, as shown in figure 1, the bending part 12 is from the second end 14 to the first end The 13 a diameter of linear increase of circumference so that the section of the bending part 12 is straight line.

Fig. 2 shows the axial sectional view of the suspension bushes 100 of another embodiment.As another embodiment, institute State circumference a diameter of non-linear growth of the bending part 12 from the second end 14 to the first end 13 so that the bending The section in portion 12 is arc.

In the utility model, no matter the section of shown bending part 12 is straight line or arc, the institute of the bending part 12 The radial direction vertical range for stating the second end 14 and the first end 13 is the radial direction radius and inner sleeve 20 of the outer tube 10 The half of outermost radial direction semidiameter at non-lug boss 21.Such as the distance at the A in Fig. 1 and Fig. 3.It is also, preferably real Example is applied, the bending part 12 is connected with the junction of circular cylinder body by circular arc transition.

In addition, as Figure 1-3, the rubber 30 includes the first rubber section 31 and the second rubber section 32.First rubber section 31 are filled at the hollow bulb between the cylindrical tube portion 11 and the inner sleeve 20.Second rubber section 32 is one thin Layer, the inner side of bending part 12 is adhered to, and is integrally formed with first rubber section 31.Because of the first rubber section 31 and second Rubber section 32 is integrally formed, and the inner side of the adhesion of the second rubber section 32 and the bending part 12, makes the second rubber section 32 to the One rubber section 31 has a lateral tensile force.The utility model and makes rubber 30 viscous in the end bending of outer tube 10 The inner side of the bending part 12 is connected to, the connection area of outer tube 10 and rubber 30 is added, further lifts whole bushing Axial rigidity.The rubber 30 is vulcanization rubber, is molded to be formed using high pressure.

The utility model is forming bushing, and 30 first high pressure of rubber is molded, and does precompression treatment, then by overcoat Pipe 10, rubber 30 and inner sleeve 20 connect according to mode as shown in the figure, vulcanization, by outer tube 10 and the adhesion of inner sleeve 20, and One layer of second rubber section 32 is formed in the inner side of bending part 12.Make bushing be in the work of elastic compression to turn to change, avoid springform The reduction of amount.

As a specific embodiment, as shown in figures 1 and 3, formed with lug boss 21, institute on neck bush of the present utility model State the middle part that lug boss 21 is located at the inner sleeve 20, the non-lug boss of the lug boss 21 and the inner sleeve 20 Arc is connected between 21, and the both ends of the inner sleeve 20 are exposed to outside the outer tube 10, and the bending part 12 is located at Between the end of the lug boss 21 and the inner sleeve 20.Arc convex portion is set up at inner sleeve 20, reduces radial direction rubber 30 thickness, in the case of keeping the hardness of rubber 30 constant, radial rigidity and axial rigidity are improved, reduces the position of suspension radial direction Move, have adjusted the flexibility of suspension.

The section outmost turns vertically of the lug boss 21 are formed as one circular, and the circular center of circle with it is described The geometric center of suspension bushes 100 overlaps.As in Fig. 1 and Fig. 3 B points be lug boss 21 formed the circular center of circle, be also outstanding The geometric center of gravity of frame bushing 100.The center of circle of the circle formed at the outmost turns of the radial section of lug boss 21 is several with whole bushing What center superposition, to substantially reducing the stress concentration of bushing, lifting the life-span of bushing.

So far, although those skilled in the art will appreciate that herein it is detailed have shown and described it is of the present utility model more Individual exemplary embodiment, still, still can be public according to the utility model in the case where not departing from the spirit and scope of the utility model The content opened directly determines or derived many other variations or modifications for meeting the utility model principle.Therefore, this practicality is new The scope of type is understood that and regarded as to cover other all these variations or modifications.

Claims

A kind of 1. suspension bushes, it is characterised in that including：

Inner sleeve, for the cylinder with central through hole, at least a portion of the cylinder outside is to the projection radially extended Portion；

Outer tube, is hollow cylinder, and the lug boss of the inner sleeve is set in the middle vacancy of the outer tube, the inner sleeve At least a portion outside the outer tube；With

Rubber, it is arranged at the hollow bulb of the outer tube between the inner sleeve and the outer tube；

Wherein, it is arranged at the both ends of the cylinder of the outer tube to radially bending.
2. suspension bushes according to claim 1, it is characterised in that

The outer tube includes hollow cylindrical tube portion and the bending part at cylindrical tube portion both ends, institute State the diameter of stereochemical structure that bending part is formed circumferentially and be less than the diameter of the cylindrical tube circumferentially.
3. suspension bushes according to claim 2, it is characterised in that

The bending part is included for the girth sheets that circumferentially gradually changes, including first end and the second end, the first end with The cylindrical tube portion connection, and the circumferential diameter from the first end at the second end is gradually reduced.
4. suspension bushes according to claim 3, it is characterised in that

The bending part is from the second end to a diameter of linear increase of the circumference of the first end so that the bending part Section be straight line.
5. suspension bushes according to claim 3, it is characterised in that

The bending part is from the second end to a diameter of non-linear growth of the circumference of the first end so that the bending The section in portion is arc.
6. suspension bushes according to claim 5, it is characterised in that

Radial direction half of the second end of the bending part with the radial direction vertical range of the first end for the outer tube Footpath and the half of outermost radial direction semidiameter at the non-lug boss of inner sleeve.
7. according to the suspension bushes any one of claim 2-6, it is characterised in that

The rubber includes：

First rubber section, it is filled at the hollow bulb between the cylindrical tube portion and the inner sleeve；With

Second rubber section, it is a thin layer, is adhered on the inside of the bending part, and be integrally formed with first rubber section.
8. suspension bushes according to claim 7, it is characterised in that

The rubber is vulcanization rubber, is molded to be formed using high pressure.
9. the suspension bushes according to claim 2 or 8, it is characterised in that

The boss in the middle part of the inner sleeve, the lug boss outermost be circular arc and with the inner sleeve Arc is connected between the non-lug boss of pipe, and the both ends of the inner sleeve are exposed to outside the outer tube, the bending part Between the end of the lug boss and the inner sleeve.
10. suspension bushes according to claim 9, it is characterised in that

The section outmost turns vertically of the lug boss are formed as a circle, and the circular center of circle serves as a contrast with the suspension The geometric center of set overlaps.