CN208827518U - Lightweight torsion beam and torsion beam suspension and vehicle - Google Patents

Abstract

The utility model provides a kind of lightweight torsion beam and torsion beam suspension and vehicle, the lightweight torsion beam of the utility model include the ontology formed by tube body, and the section of ontology is V-shaped because of punching press.And ontology includes the constant cross-section section in section positioned at middle part, and is located at the ontology both ends, and along the opening angle in direction, V-arrangement section to the body end gradually big variable cross-section section.Lightweight torsion beam described in the utility model can reduce the weight of torsion beam, be beneficial to energy conservation environmental protection while guaranteeing torsion beam torsional strength.And cross-section section is set in the middle part of torsion beam, and uses variable cross-section section at both ends, also there is preferable weld strength while guaranteeing torsional strength.

Description

Lightweight torsion beam and torsion beam suspension and vehicle

Technical field

The utility model relates to topics on vehicle structure technology field, in particular to a kind of lightweight torsion beam, the utility model is also It is related to a kind of torsion beam suspension for being equipped with the lightweight torsion beam, and the vehicle of the torsion beam suspension is installed.

Background technique

Based on environmental protection and energy-efficient requirement, in the case where guaranteeing safety, the lightweight development of vehicle has become one kind Trend.A part important as vehicle comfort and safety, torsion beam suspension become a position being gradually concerned It sets.Generally there are two types of structures for existing torsion beam suspension, one is trailing arm is then upper and lower plates weldering using steel plate punched U-shaped opening Binding structure.Such structure is to guarantee the intensity and torsion stiffness of torsion beam assembly, generally requires and uses thicker plate or increase Stabiliser bar causes trailing arm assembly weight higher；The second is torsion beam uses hollow tube punching press, trailing arm is then hydraulic integrated, But the tail end of trailing arm is to need independent welding support to connect with hub unit perpendicular to vehicle-width direction, also increase torsion The weight of beam.

Utility model content

In view of this, the utility model is directed to a kind of lightweight torsion beam, can subtract while keeping intensity The weight of light torsion beam.

In order to achieve the above objectives, the technical solution of the utility model is achieved in that

A kind of lightweight torsion beam, including the ontology formed by tube body, and the section of the ontology is V-shaped because of punching press, The ontology includes the constant cross-section section in section positioned at middle part, and is located at the ontology both ends and along to the ontology The variable cross-section section of the opening angle gradually big setting in the direction of end, V-arrangement section.

Further, the V-arrangement section includes the equidistant section at top, and the change for the equidistant section two sides that are placed in Spacing section.

Further, the gap width of the equidistant section is 0.3-0.5mm.

Further, the cross-section segment length is the 40%-60% of the ontology total length.

Compared with the existing technology, the utility model has the advantage that

(1) lightweight torsion beam described in the utility model, due to making the section of ontology using tube body punching structure It is V-shaped, while guaranteeing torsion beam torsional strength, relative to the structure being in U-shape using solid steel plate punched, torsion can be reduced The weight of power beam entirety, convenient for energy conservation and environmental protection；Using the cross-section section that section is constant in the middle part of torsion beam ontology, and at both ends Using v-shaped opening angle gradually big variable cross-section section；Can have at both ends and external component preferable while keeping torsional strength Weld strength.

(2) gap width of the equidistant section of bodies top is set as 0.3mm-0.5mm, can provide preferable torsional strength.

(3) cross-section segment length is that the 40%-60% of body length can guarantee the weld strength at torsional strength and both ends.

The another object of the utility model is to propose a kind of torsion beam suspension, can reduce the matter of torsion beam suspension Amount.

In order to achieve the above objectives, the technical solution of the utility model is achieved in that

A kind of torsion beam suspension, including lightweight torsion beam as described above, and in lightweight torsion beam both ends Respectively arranged trailing arm；The trailing arm is bent camber, and is equipped with wheel hub mounted portion in one end of the trailing arm, and because described vertical The bending of arm, and the length direction for making the mounting surface of the wheel hub mounted portion be orthogonal to the lightweight torsion beam is arranged.

Further, the trailing arm is hydraulic integrated structure.

Further, the wheel hub mounted portion is the wheel hub mounting bracket that welding is fixed on the trailing arm end, and in institute It states on trailing arm, the two sides of Yu Suoshu lightweight torsion beam are configured with wheel hub mounting bracket welding location-plate hole.

Further, the both ends of Yu Suoshu lightweight torsion beam are configured with the first positioning plane respectively, correspond to described the Certain bit plane, in being configured with the second positioning plane on two trailing arms respectively, and the second positioning plane can be because with described in First positions the coplanar of interplanar, and constitutes the welding to the trailing arm and the lightweight torsion beam end and position.

Compared with the existing technology, the utility model has the advantage that

(1) torsion beam suspension described in the utility model, due to using the lightweight torsion beam of lighter weight, and also it is vertical Brachiocylloosis camber makes the wheel hub mounted portion for being mounted on trailing arm end be orthogonal to the length direction of ontology；Therefore, it is mounted on wheel hub Be mainly the power perpendicular to trailing arm axis to trailing arm when wheel hub lateral force on mounting portion, compared to make trailing arm by radial direction Bending force, there is better intensity, without increasing the ruggedized constructions such as reinforcing rib, weight can be further decreased.

(2) trailing arm is hydraulic integrated structure, easy to process, and intensity is higher.

(3) hub bracket location hole is set on trailing arm, in the welding of wheel hub mounting bracket, positioning accurate with higher Degree, to have preferable intensity and security performance.

(4) by the way that the first positioning plane and the second positioning plane are respectively set on ontology and trailing arm, in trailing arm to ontology When welding, the first positioning plane and second is set to position plane for face by levelling, structure is simple, and can provide preferable welding essence Degree.

The utility model additionally provides a kind of vehicle, is installed on Yu Suoshu vehicle such as above-mentioned torsion beam suspension.

The vehicle of the utility model and above-mentioned torsion beam suspension beneficial effect having the same, details are not described herein.

Detailed description of the invention

The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.? In attached drawing:

Fig. 1 is that the utility model implements lightweight torsion beam overall structure diagram described in an example；

Fig. 2 is the cross-sectional view in Fig. 1 at A；

Fig. 3 is that the utility model implements scheme of installation of the wheel hub mounted portion on trailing arm in two.

Description of symbols:

1- ontology, 11- cross-section section, 12- variable cross-section section, the equidistant section of 13-, 14- become spacing section, the first plane of 15-, 2- Trailing arm, 21- location hole, 22- second position plane, and 3- takes turns hub mounted portion.

Specific embodiment

It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can To be combined with each other.

The utility model will be described in detail below with reference to the accompanying drawings and embodiments.

Embodiment one

The present embodiment is related to a kind of lightweight torsion beam, and as depicted in figs. 1 and 2, which includes by tube body The ontology 1 of formation, the section of the ontology 1 are V-shaped because of punching press.And ontology 1 includes the cross-section constant positioned at the section at middle part Section 11, and it is located at 1 both ends of ontology, and the opening angle along direction, V-arrangement section to 1 end of ontology is gradually set greatly The variable cross-section section 12 set.

Under the material of phase homogenous quantities, by the V-shaped ontology 1 in the section of the stamped formation of hollow tube, compared to by steel plate The section of stamped formation is the structure of U-shaped, rigidity and torsional strength with higher.Namely meeting same rigidity and torsion In the case where intensity, the quality of materials needed using hollow tube punching press is smaller.It is verified it is found that meet equal design load and In the case where torsion stiffness, using hollow tube punching structure, quality of materials 2.5Kg-3.0kg can be reduced.Therefore material can both be reduced Material consumption has good energy conservation and environmental protection characteristic because mitigating weight to save cost.

The V-arrangement section of 1 cross-section section 11 of ontology is specific as shown in Fig. 2, including positioned at the equidistant of top in the present embodiment Section 13, and the change spacing section 14 for equidistant 13 two sides of section that are placed in.Preferably rigidity and torsional strength in order to obtain, equidistantly The gap width of section 13 is preferably 0.3mm-0.5mm.

When in use due to lightweight torsion beam, trailing arm 2 can be welded at the both ends of torsion beam；And in order to guarantee firm welding Property, the biggish angle of needs of the V-arrangement section opening of ontology 1.But when V-arrangement section angle is larger again influence ontology 1 rigidity and Torsional strength.For this purpose, ontology 1 includes the cross-section section 11 constant positioned at the section at middle part, and is located at ontology in the present embodiment 1 both ends, and along the direction to 1 end of ontology, V-arrangement section opening angle gradually big variable cross-section section 12.To both be able to satisfy torsion The rigidity and torsional strength of power beam, and it is able to satisfy the firm welding with both ends side wall.In order to obtain rigidity, the torsion of ontology 1 Balance between intensity and firm welding performance, the length of the cross-section section 11 should be the 40%-60% of 1 total length of ontology.

Embodiment two

The present embodiment is related to a kind of torsion beam suspension, as shown in Figure 1, the torsion beam suspension includes as described in embodiment one Lightweight torsion beam, and in the respectively arranged trailing arm 2 in lightweight torsion beam both ends；And trailing arm 2 is bent camber, and in trailing arm 2 one end is provided with wheel hub mounted portion 3, and because of the bending of trailing arm 2, and the mounting surface for taking turns hub mounted portion 3 is made to be orthogonal to ontology 1 Length direction setting.

In the present embodiment, trailing arm 2 is hydraulic integrated structure, easy to process, and has preferable intensity.Its structure is such as Shown in Fig. 1, middle part and the lightweight torsion beam of trailing arm 2 weld together, and 2 two sides of trailing arm are to away from lightweight torsion beam Curving camber.One end therein is bent substantially parallel with the length direction of lightweight torsion beam to tail portion.At the end Wheel hub mounted portion 3 is provided on trailing arm 2, and the mounting surface for taking turns hub mounted portion 3 is orthogonal with the length direction of lightweight torsion beam.This In embodiment, which is specially wheel hub mounting bracket.By above-mentioned setting, which is being installed When vehicle driving, if wheel receives lateral power, which is transferred to trailing arm 2, shows as answering the tensile stress or pressure of trailing arm 2 Power.

And 2 tail portion of trailing arm is mostly to be parallel to vehicle-body width direction in the prior art.The lateral force that wheel is subject to, cash for pair The bending stress of trailing arm 2.Cause hub bracket deflection big, flare change rate is big and influences tire road holding, needs individually to increase Add hub bracket stiffening plate, and increases turnup structure in hub bracket two sides.These hub bracket stiffening plates not only give processing to make It makes and makes troubles, and can additionally increase vehicle weight.And the tensile stress or compression that trailing arm 2 can bear are much larger than its energy The bending stress of receiving without structures such as stiffening plates, therefore can reduce vehicle weight.

In the present embodiment, on two trailing arms 2 and the two sides for the ontology 1 that is placed in are configured with the welding positioning of wheel hub mounting bracket Hole 21.Due in 2 forming process of trailing arm, it may be desirable to be machined out processing.It is can be processed while being machined out to trailing arm 2 Location hole 21 out, and location hole 21 is made to have higher positioning accuracy.To guarantee installation essence of the wheel hub mounting bracket on trailing arm 2 Degree, to improve the security performance of vehicle.

In order to guarantee welding precision that trailing arm 2 is welded in lightweight torsion beam.In the present embodiment, in lightweight torsion beam Both ends be configured with the first positioning plane 15 respectively, and correspond to the first positioning plane 15, be configured with respectively on two trailing arms 2 Second positioning plane 22.When trailing arm 2 welds, by levelling first positioning plane 15 and the second positioning plane 22, first is set to determine Bit plane 15 and the second positioning plane 22 are coplanar, may make up the positioning when welding to trailing arm 2, and have comparable positioning accurate Degree.

Embodiment three

The present embodiment is related to a kind of vehicle, and the torsion beam suspension such as embodiment two is installed on Yu Suoshu vehicle.

By install as embodiment two torsion beam option, can reduce the weight of vehicle, thus have it is good environmental protection and Energy-saving effect.And hub bracket deflection is small when wheel lateral force, will not because of the big influence tire road holding of flare change rate, The handling of vehicle can be improved.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model Protection scope within.

Claims (9)

1. a kind of lightweight torsion beam, including the ontology (1) formed by tube body, the section of the ontology (1) is in V because of punching press Shape, it is characterised in that: the ontology (1) includes the cross-section section (11) constant positioned at the section at middle part, and is located at described Body (1) both ends and along the variable cross-section section of the gradually big setting of the opening angle to the direction of the ontology (1) end, V-arrangement section (12)。

2. lightweight torsion beam according to claim 1, it is characterised in that: the V-arrangement section includes the equidistant of top Section (13), and the change spacing section (14) for equidistant section (13) two sides that are placed in.

3. lightweight torsion beam according to claim 1, it is characterised in that: the gap width of the equidistant section (13) is 0.3-0.5mm。

4. lightweight torsion beam according to claim 1, it is characterised in that: cross-section section (11) length is described The 40%-60% of body (1) total length.

5. a kind of torsion beam suspension, it is characterised in that: including lightweight torsion beam according to any one of claims 1 to 4, And in the respectively arranged trailing arm in lightweight torsion beam both ends (2)；The trailing arm (2) is bent camber, and in described vertical One end of arm (2) is equipped with wheel hub mounted portion (3), and because of the bending of the trailing arm (2), and makes the peace of wheel hub mounted portion (3) Dress face is orthogonal to the length direction setting of the lightweight torsion beam.

6. torsion beam suspension according to claim 5, it is characterised in that: the trailing arm (2) is hydraulic integrated structure.

7. torsion beam suspension according to claim 5, it is characterised in that: the wheel hub mounted portion (3) is that welding is fixed on The wheel hub mounting bracket of trailing arm (2) end, and on the trailing arm (2), two side structures of Yu Suoshu lightweight torsion beam There is wheel hub mounting bracket welding location-plate hole (21).

8. torsion beam suspension according to claim 5, it is characterised in that: distinguish structure in the both ends of Yu Suoshu lightweight torsion beam The first positioning plane (15) has been made, first positioning plane (15) is corresponded to, in being configured with the on two trailing arms (2) respectively Two positioning plane (22), and second positioning plane (22) can be because of coplanar, and the structure between first positioning plane (15) The welding of the pairs of trailing arm (2) and the lightweight torsion beam end positions.

9. a kind of vehicle, it is characterised in that: installing is just like torsion described in any one of claim 5 to 8 on Yu Suoshu vehicle Beam suspension.