CN206246576U - A kind of subframe bushing - Google Patents

Abstract

The utility model is related to a kind of subframe bushing, including block sleeve, inner frame sleeve, outer skeleton sleeve, rubber bush, rubber bush is packaged in outer skeleton cartridge exterior and forms the fixed double-layer sleeve structure of vulcanization, inner frame sleeve is arranged with double-layer sleeve structure and forms three layers of fixed tube-in-tube structure of vulcanization, three layers of upper end of tube-in-tube structure are fixedly sleeved with block sleeve to form subframe bushing entirety.The utility model subframe bushing using vulcanization wrapping structure by outer skeleton bag in rubber sleeve, the surfacecti proteon operation of undergauge operation and ironware is eliminated, with Stability Analysis of Structures, the characteristics of low production cost.

Description

A kind of subframe bushing

Technical field

The utility model is related to a kind of secondary frame lining for automobile, more particularly to a kind of to improve new automobile accessory frame lining Set, belongs to auto parts machinery field.

Background technology

Subframe is the skeleton of tandem axle, is the part of tandem axle.Subframe supports tandem axle and suspension, Vehicle bridge, suspension is connected with " positive vehicle frame " again by it, be traditionally referred to as " subframe ".Subframe bushing is important in suspension system Flexible member, the quality of subframe bushing design directly influences the vibrating noise level of automobile, is influence ride comfort Key factor.Subframe bushing is arranged on the position that subframe is connected with positive vehicle frame.Existing frequently-used subframe bushing is general It is made up of inner sleeve, overcoat and intermediate rubber set, sub-assembly easily occurs external member during long-term use and loosens the thing for departing from Therefore, and the undergauge operation of overcoat and its protection operation on surface also increase processed complex degree and manufacturing cost.

The content of the invention

The utility model subframe bushing discloses new scheme, using vulcanization wrapping structure by outer skeleton bag in rubber sleeve It is interior, solve the overcoat complex procedures of existing product, the problem of high processing costs.

The utility model subframe bushing includes block sleeve, inner frame sleeve, outer skeleton sleeve, rubber bush, rubber Sleeve is packaged in outer skeleton cartridge exterior and forms the fixed double-layer sleeve structure of vulcanization, and inner frame is arranged with double-layer sleeve structure Sleeve forms three layers of fixed tube-in-tube structure of vulcanization, three layers of upper end of tube-in-tube structure and the fixedly sleeved formation subframe of block sleeve Bushing entirety.

The utility model subframe bushing uses vulcanization wrapping structure by outer skeleton bag in rubber sleeve, eliminates undergauge work The surfacecti proteon operation of sequence and ironware, with Stability Analysis of Structures, the characteristics of low production cost.

Brief description of the drawings

Fig. 1 is the schematic diagram of this programme subframe bushing.

Fig. 2 is the schematic cross-sectional view of subframe bushing.

Fig. 3 is the part solid assembling schematic diagram of subframe bushing.

Wherein, 100 is block sleeve, and 110 is block, and 120 is connecting key, and 200 is inner frame sleeve, and 210 is inner frame Lower end mouth structure, 220 is structure blind hole, and 300 is outer skeleton sleeve, and 310 is outer skeleton lower port structure, and 320 is indent face Wall construction, 400 is rubber bush, and 410 is zigzag bulge loop, and 420 is " mountain " shape bulge-structure.

Specific embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figure 1, 2, the utility model subframe bushing includes block sleeve, inner frame sleeve, outer skeleton sleeve, rubber Rubber sleeve, rubber bush is packaged in outer skeleton cartridge exterior and forms the fixed double-layer sleeve structure of vulcanization, in double-layer sleeve structure It is arranged with inner frame sleeve and forms three layers of fixed tube-in-tube structure of vulcanization, three layers of upper end of tube-in-tube structure and block sleeve fixed cover Connect to form subframe bushing entirety.The outer skeleton of fully wrapped around flange of rubber bodies of this programme, save product undergauge operation and The surfacecti proteon of outer skeleton, structure is more stablized, production cost reduction.Further, this programme is in order to strengthen the axial direction of bushing body Rigidity, also discloses a kind of Transform Type design, as shown in Fig. 2 the bottom of specifically inner frame sleeve is provided with barrel axially outward The inner frame lower end mouth structure of the flaring of extension, the bottom of outer skeleton sleeve is provided with the flaring that part barrel is extended axially outwardly Outer skeleton lower port structure, inner frame lower end mouth structure and the interstructural rubber bush of outer skeleton lower port form wedge-shaped rubber Body structure, wedge-shaped rubber body structure improves the axial rigidity of subframe bushing.The wedge that above structure passes through formation between inner-outer sleeve Shape angle improves the axial rigidity of product, is combined with the wrapping structure of vulcanization, improves the overall structural behaviour of bushing.

On the basis of above scheme, this programme is also made that the improvement of modular construction.As shown in figure 3, specific as follows.For Enhancing bushing and the combination stability of connector, prevent bushing from deviating from easily, this programme edge on the lateral wall of rubber bush It is axially arranged with the circumferentially arranged zigzag bulge loop of some equidistant arrangements, zigzag bulge loop strengthens the extrusion of subframe bushing Power, prevents it from deviating from easily.In order to strengthen the ability that bushing buffers axial impact, this programme is at the upper port edge of rubber bush Some " mountain " shape bulge-structures for extending axially outwardly of circumferentially equidistant arrangement are provided with, " mountain " shape bulge-structure buffering is secondary The axial impact that vehicle frame bushing is subject to.In order to strengthen the mobility of sizing material in the vulcanization of rubber, sizing material is set to be rapidly filled with mould Cave, this programme is on the stage casing lateral wall of outer skeleton sleeve circumferentially arranged with the plane Cylinder wall structure of some indents, plane barrel If structure is provided with stem structure through hole and forms inner concave hole wall structure, inner concave hole wall structure strengthens the flowing of vulcanized rubber material Property.Further, in order that the outer skeleton sleeve in embedded rubber bodies can play stronger supporting role, while be unlikely to deform, this The outer skeleton sleeve of scheme is preferably stamped metal part.For the structure design of optimization component, the premise of intensity requirement is being met Under, as far as possible reduce product weight, this programme on the barrel upper surface of inner frame sleeve circumferentially arranged with it is some vertically to The structure blind hole of interior extension, structure blind hole reduces the weight of inner frame sleeve, while the inner frame sleeve of this programme is preferably Aluminium diecasting, it is ensured that the structural strength of part.In order to ensure that bushing effectively, stably can be connected with subframe, this programme is adopted Specially designed connection member, specifically block sleeve include cylindrical central sleeve, and block is equipped with the middle part of cylindrical central sleeve, keep off Block is inverted truncated rectangular pyramids structure, circumferentially arranged with some connections for axially extending on the lateral wall of the lower port of cylindrical central sleeve Key, connecting key and three layers of upper port madial wall of tube-in-tube structure form interference fit, three layers of upper end of tube-in-tube structure and block set Cylinder forms subframe bushing entirety by the way that above-mentioned interference fit is fixedly sleeved, while the block sleeve of this programme is preferably aluminium die casting Part, on the premise of the structural strength of part is ensured, mitigates its weight.

This programme discloses a kind of bushing being mainly used on automobile accessory frame.Subframe bushing is by block, flange dermoskeleton Frame, rubber bodies and inner frame composition.The outer skeleton of flange is integral with rubber bodies vulcanization with inner frame, then assembles block, and interior Skeleton forms interference fit, is assembled together, it is ensured that product stability, will not be separated in running car, come off, and is pressed meeting Aluminium die cast is used under the requirement of intensity adjustable, pts wt is reduced as far as possible.The outer skeleton of flange is completely embedded in rubber bodies.Gear Block uses aluminium diecasting, inner framework structure to use the shape of falling Y-shaped with inner frame, and wedge angle is formed with the outer skeleton of flange.Flange Outer skeleton uses punching press ironware, strengthens the intensity of bushing.The outer skeleton of flange is wrapped in rubber bodies the inside, and rubber bodies outer ring is using saw Tooth Shape Design.The wedge structure of this programme improves axial rigidity, and the outer skeleton of flange is completely embedded in rubber bodies, eliminates contracting The surfacecti proteon operation of footpath operation and ironware, zigzag outer ring enhances the extrusion pressure of bushing, with good damping effect, and With larger axial rigidity, structural behaviour stabilization.In such scheme, there is ladder hole in the middle of block, lower end outside has convex Rise, interference fit is formed with inner frame when the projection is assembled to inner frame.The outer skeleton structure of flange is symmetrical, and two sides has larger Flange bead, tube wall caves inward, and concave face has three circular holes, and there is smaller flange bead on two sides in addition, and tube wall is in plane.It is interior , in Y-shaped, structure is symmetrical, and there is notch cuttype through hole centre, and wherein two sides is plane for skeleton, and two sides is in Y-shaped in addition.It is interior Skeleton has 6 blind holes from upper surface.Rubber bodies are bonded together with inside and outside skeleton, and the outer skeleton of flange is completely embedded into rubber bodies, A rubber bodies radial direction part is hollow area, and another part is solid area, there is 5 road sawtooth projections on the outside of rubber bodies, on End both sides have city wall shape raised.

The outer skeleton of flange has two flange beads, and in the same side, tube wall concaves to form angled with tube wall putting down Face, the plane and flange bead form wedge configuration with the Y faces of inner frame, and bushing can extrude rubber in lozenges when axial force is received Glue, improves axial rigidity.3 holes are provided with plane, the mobility of sizing material is strengthened in the vulcanization of rubber, sizing material is quickly filled Full die cavity.The outer skeleton of flange uses punching press ironware, can have stronger supporting role in embedded rubber bodies, is unlikely to deform.Inner frame is in There is stairstepping through hole Y-shaped, centre, is in oval runway dress with the hole shape that block coordinates, and anti-stop block is rotated, and material is used There are 6 blind holes aluminium diecasting, upper end, reduces the weight of product as far as possible in the case where intensity requirement is met.Rubber bodies vulcanization when with it is interior Skeleton and the outer skeleton of flange are bonded together, and the outer skeleton of flange is completely encapsulated in rubber bodies, save the outer skeleton of flange Surfacecti proteon operation and undergauge operation.Rubber bodies have 5 road sawtooth projections with subframe assembling contact surface, enhance the pressure of bushing Exert oneself.Rubber bodies upper end both sides have city wall to fill rubber bumps, can buffer the impact of axial direction, improve the life-span of product.

The subframe bushing of this programme improves the axial rigidity of product, rubber by the wedge angle formed between inner-outer sleeve The outer skeleton of fully wrapped around flange of body, saves the surfacecti proteon of the undergauge operation and outer skeleton of product, the saw of rubber bodies outline Tooth-shape structure can improve the extrusion pressure of product, prevent product from being come off from subframe.Based on above feature, the subframe of this programme Bushing has substantive distinguishing features and progress compared to existing product.

The subframe bushing of this programme is not limited to the content disclosed in specific embodiment, the technology occurred in embodiment Scheme can be with individualism, it is also possible to mutually include, the letter that those skilled in the art make according to this programme combination common knowledge Single alternative falls within the scope of this programme.

Claims (10)

1. a kind of subframe bushing, it is characterized in that including block sleeve, inner frame sleeve, outer skeleton sleeve, rubber bush, it is described Rubber bush is packaged in the outer skeleton cartridge exterior and forms the fixed double-layer sleeve structure of vulcanization, in the double-layer sleeve structure It is arranged with the inner frame sleeve and forms three layers of fixed tube-in-tube structure of vulcanization, the upper end of three layers of tube-in-tube structure and the gear Block sleeve is fixedly sleeved to form subframe bushing entirety.

2. subframe bushing according to claim 1, it is characterised in that the bottom of the inner frame sleeve is provided with barrel edge The inner frame lower end mouth structure of the axially outwardly extending flaring, the bottom of the outer skeleton sleeve be provided with part barrel vertically to The outer skeleton lower port structure of the flaring of outer extension, inner frame lower end mouth structure is interstructural with the outer skeleton lower port The rubber bush forms wedge-shaped rubber body structure, and the wedge-shaped rubber body structure improves the axially firm of the subframe bushing Degree.

3. subframe bushing according to claim 1 and 2, it is characterised in that along axle on the lateral wall of the rubber bush To the circumferentially arranged zigzag bulge loop for being provided with some equidistant arrangements, the zigzag bulge loop strengthens the subframe bushing Extrusion pressure.

4. subframe bushing according to claim 1 and 2, it is characterised in that on the upper port edge of the rubber bush It is provided with some " mountain " shape bulge-structures for extending axially outwardly of circumferentially equidistant arrangement, " mountain " the shape bulge-structure buffering The axial impact that the subframe bushing is subject to.

5. subframe bushing according to claim 1 and 2, it is characterised in that the stage casing lateral wall of the outer skeleton sleeve On circumferentially arranged with some indents plane Cylinder wall structure, if the plane Cylinder wall structure be provided with stem structure through hole formed indent Face wall construction, the inner concave hole wall structure strengthens the mobility of vulcanized rubber material.

6. subframe bushing according to claim 5, it is characterised in that the outer skeleton sleeve is stamped metal part.

7. subframe bushing according to claim 1 and 2, it is characterised in that the barrel upper surface of the inner frame sleeve On reduce the weight of the inner frame sleeve circumferentially arranged with some structure blind holes inwardly in the axial direction, the structure blind hole Amount.

8. subframe bushing according to claim 7, it is characterised in that the inner frame sleeve is aluminium diecasting.

9. subframe bushing according to claim 1 and 2, it is characterised in that the block sleeve includes cylindrical central sleeve, institute State and block is equipped with the middle part of cylindrical central sleeve, the block is inverted truncated rectangular pyramids structure, the lower port of the cylindrical central sleeve Circumferentially arranged with some connecting keys for axially extending on lateral wall, the upper port of the connecting key and three layers of tube-in-tube structure Madial wall forms interference fit, and the upper end of three layers of tube-in-tube structure is with the block sleeve by the interference fit fixed cover Connect to form subframe bushing entirety.

10. subframe bushing according to claim 9, it is characterised in that the block sleeve is aluminium diecasting.