CN102785714B - A kind of reinforcement structure of saloon car rear floor spare wheel groove - Google Patents

A kind of reinforcement structure of saloon car rear floor spare wheel groove Download PDF

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Publication number
CN102785714B
CN102785714B CN201210248420.2A CN201210248420A CN102785714B CN 102785714 B CN102785714 B CN 102785714B CN 201210248420 A CN201210248420 A CN 201210248420A CN 102785714 B CN102785714 B CN 102785714B
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CN
China
Prior art keywords
wheel groove
spare
muscle
spare wheel
attachment point
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CN201210248420.2A
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Chinese (zh)
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CN102785714A (en
Inventor
王爱国
朱浩
高发华
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奇瑞汽车股份有限公司
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Priority to CN201210248420.2A priority Critical patent/CN102785714B/en
Publication of CN102785714A publication Critical patent/CN102785714A/en
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Publication of CN102785714B publication Critical patent/CN102785714B/en

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Abstract

The invention discloses a kind of reinforcement structure of saloon car rear floor spare wheel groove, it is characterized in that: described reinforcement structure is that spare wheel groove is from front to back in being tending towards closing in shape; Centered by spare tyre attachment point, be provided with T-shaped muscle, the line muscle of width gaps such as be uniform-distribution with in spare tyre attachment point rear end; Around spare tyre attachment point, be provided with straight line muscle, owing to adopting said structure, this reinforcement structure has the following advantages: 1, avoid with lower cost and occur spare wheel groove resonance effect in the process of running car, promotes car load NVH performance; 2, easily realized by Sheet Metal Forming Technology, be worth industrially promotion and application.

Description

A kind of reinforcement structure of saloon car rear floor spare wheel groove
Technical field
The present invention relates to the body structure of automobile, particularly a kind of reinforcement structure of saloon car rear floor spare wheel groove.
Background technology
The design of current car body structure many employings monocoque skin construction, rear floor, as the chief component of body bottom section, has lift-launch passenger, places spare tyre, after touch in prevent fuel tank from damaging by self-deformation and reduce the vital function to occupant injury.Meanwhile, along with client is to the progressively raising of car load NVH performance requriements, require that rear floor has enough strength and stiffness, particularly spare wheel groove and can not occur resonance effect.
In order to improve performance herein, current conventional method is that after replacing, flooring material or increase are expected thick, to optimize rear floor spare wheel groove reinforced rib or increase by a reinforcement in spare tyre attachment point peripheral region, rear floor.
But the equal Shortcomings part of above-mentioned improved procedure, such as more conversion materials can increase Sheet Metal Forming Technology difficulty, and change material is thick can increase complete vehicle weight; Higher to the depth requirements of reinforced rib, otherwise out of reach obviously promotes the effect of rear ground panel stiffness and mode; Not only can increase the cost of investment of diel and soldering cramping apparatus, and the weight of car load can be increased.
Thering is provided a kind of simple mode to avoid occurring spare wheel groove resonance effect in the process of running car, is the problem that prior art needs to solve.
Summary of the invention
Technical matters to be solved by this invention is, provides a kind of reinforcement structure of saloon car rear floor spare wheel groove, to avoid occurring spare wheel groove resonance effect in the process of running car.
For solving the problems of the technologies described above, technical scheme of the present invention is, a kind of reinforcement structure of saloon car rear floor spare wheel groove, is characterized in that: described reinforcement structure is that spare wheel groove is from front to back in being tending towards closing in shape; Centered by spare tyre attachment point, be provided with T-shaped muscle, the line muscle of width gaps such as be uniform-distribution with in spare tyre attachment point rear end; Around spare tyre attachment point, being provided with straight line muscle, thus avoiding spare wheel groove to occur resonance effect by setting up reinforced rib cleverly.
The first half shape of described spare wheel groove is be arc-shaped with spare tyre profile, and latter half diminishes gradually along circular arc tangential line direction, in pre-large post-small isosceles trapezoid closing in shape.
Shape that is described and spare tyre contact position line muscle and spare tyre are placed arc surface and are consistent, and the line muscle on its side is in association graded profile.
Described T-shaped muscle, line muscle extend through the upper surface on rear floor by the bottom surface of spare wheel groove always.
Described T-shaped muscle is provided with small t-shaped muscle.
Described straight line muscle is emitting shape.
The periphery of described spare wheel groove is provided with spare wheel groove sidewall.
Described spare wheel groove be provided with small-sized convex tendon foremost.
A reinforcement structure for saloon car rear floor spare wheel groove, owing to adopting said structure, this reinforcement structure has the following advantages: 1, avoid with lower cost and occur spare wheel groove resonance effect in the process of running car, promotes car load NVH performance; 2, easily realized by Sheet Metal Forming Technology, be worth industrially promotion and application.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation;
Fig. 1 is the structural representation of the reinforcement structure of a kind of saloon car rear floor spare wheel groove of the present invention;
Fig. 2 is the structural representation of saloon car rear floor spare wheel groove in prior art
In FIG, 1, spare wheel groove; 2, T-shaped muscle; 3, line muscle; 4, straight line muscle; 5, spare tyre attachment point; 6, small t-shaped muscle; 7, spare wheel groove sidewall; 8, small-sized convex tendon.
Detailed description of the invention
With headstock direction for front end, tailstock direction is rear end.The present invention is that spare wheel groove 1 is from front to back in being tending towards closing in shape; Centered by spare tyre attachment point 5, be provided with T-shaped muscle 2, the line muscle 3 of width gaps such as be uniform-distribution with in spare tyre attachment point 5 rear end; Around spare tyre attachment point 5, being provided with straight line muscle 4, thus avoiding spare wheel groove to occur resonance effect by setting up reinforced rib cleverly.
The object of the invention is to be improved by saloon car rear floor spare wheel groove, significantly improve spare wheel groove rigidity, mode, avoid the generation of resonance effect, and in touching after being conducive to, self is fully out of shape energy-absorbing, reach the object of protection fuel tank and passenger.
The present invention includes the spare wheel groove 1 being tending towards closing in shape from front to back, in the T-shaped muscle 2 of emitting shape centered by spare tyre attachment point 5, and be evenly distributed on spare tyre attachment point 5 rear end etc. the line muscle 3 of width gaps.Spare wheel groove 1 first half shape is be arc-shaped with spare tyre profile, and latter half diminishes gradually along circular arc tangential line direction, in pre-large post-small isosceles trapezoid closing in shape.
Reinforced rib divides T-shaped muscle 2 and 4 two kinds, straight line muscle; TXing Jin 2 intersection is spare tyre attachment point 5 position, and T-shaped muscle 2 is provided with small-sized T-shaped muscle 6, has two in emitting shape straight line muscle 4 near spare tyre attachment point 5 in the front end of spare tyre attachment point 5.Gap uniformity such as line muscle 3 grade is distributed in the rear end of spare tyre attachment point 5.Place arc surface with line muscle 3 shape at spare tyre contact position place and spare tyre to be consistent, other line muscle 3 is in association graded profile.
As shown in Figure 1, the present invention includes the spare wheel groove 1 being tending towards closing in shape from front to back, in the T-shaped muscle 2 of emitting shape centered by spare tyre attachment point 5, and be evenly distributed on spare tyre attachment point 5 rear end etc. width gaps line muscle 3.All reinforced ribs are by the upper surface extending through floor bottom spare wheel groove 1 always; At spare tyre attachment point 5, there is small t-shaped muscle 6. at place
T-shaped muscle 2 has small t-shaped muscle 6 at spare tyre attachment point 5 place, and spare wheel groove sidewall 7 and spare wheel groove bottom surface conjugation position are equipped with small-sized concave bar 8.
T-shaped muscle 2 width is 45-70mm, and the degree of depth is 7-10mm.T-shaped muscle 2, centered by spare tyre attachment point 5, in emitting shape, is installed bottom surface by spare tyre and is extended through floor upper surface always.
The width of line muscle 3 is 45-70mm, and the degree of depth is 7-10mm, equidistantly divides equally the rear end at spare tyre attachment point 5.Place arc surface with the shape of the line muscle 3 at spare tyre contact position place and spare tyre to be consistent, other line muscle 3 is in association graded profile.
Be tending towards the spare wheel groove of falling isosceles trapezoid 1 of closing in shape in the present invention than traditional spare wheel groove stabilized structure, mode and rigidity significantly promote, and avoid low-frequency resonance; TXing Jin 2 intersection arranges small t-shaped muscle 6, and is provided with two diverging straight muscle 4 to surrounding transferring energy as center in spare tyre attachment point 5 front end, adds rigidity and the mode of spare wheel groove 1, reduces the risk that spare tyre attachment point 5 tunnel runin is split; The line muscle 3 that the width gaps such as T-shaped muscle 2 rear end are arranged is conducive to the abundant conquassation distortion in the rear floor of induction in rear collision and absorbs energy, reaches the object of protection passenger and fuel tank.This technical scheme, to the raising highly significant of rear floor spare wheel groove rigidity and mode, decreases the quantity of blanked part, has saved productive costs, alleviated tare.
The present invention is tending towards by rear floor spare wheel groove 1 being adopted the structure design that circle is isosceles trapezoid shape, the T-shaped muscle 2 launched to surrounding by this is arranged in spare tyre attachment point 5 front end, the line muscle 3 placing profile gradual change with spare tyre is arranged in spare tyre attachment point 5 rear end, design in the appearance structure of spare tyre attachment point 5 location arrangements small t-shaped muscle 6 simultaneously, enhance the rigidity of rear floor spare wheel groove and spare tyre attachment point, significantly improve the local mode of spare wheel groove, avoid spare wheel groove low-frequency resonance phenomenon.By CAE check analysis, spare wheel groove 1 adopts and is tending towards the structure design that circle is isosceles trapezoid shape, and arrange T-shaped muscle 2 and straight line muscle 4 in spare wheel groove after, the mode of spare wheel groove 1 is increased to 128hz by original 94hz, improves 36%.Compared with designing with traditional spare wheel groove appearance structure, the rigidity of rear floor spare wheel groove 1 and the lifting of mode are clearly.Avoid the generation of spare wheel groove low-frequency resonance phenomenon, reduce the risk of spare wheel groove cracking in the examination of road, particularly important to the lifting of car load NVH performance, and Sheet Metal Forming Technology easily realizes, and is worth industrially promotion and application.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the various improvement that technical solution of the present invention is carried out, or directly apply to other occasion, all within protection scope of the present invention without improving.

Claims (1)

1. the reinforcement structure of a saloon car rear floor spare wheel groove, comprise and be provided with T-shaped muscle (2) centered by spare tyre attachment point (5), the line muscle (3) of width gaps such as to be uniform-distribution with in spare tyre attachment point (5) rear end, be provided with straight line muscle (4) around, straight line muscle (4) is emitting shape centered by spare tyre attachment point (5); The first half shape also comprising spare wheel groove (1) is for being arc-shaped with spare tyre profile, be provided with small-sized convex tendon (8) foremost, periphery is provided with spare wheel groove sidewall (7), it is characterized in that: described reinforcement structure is that spare wheel groove (1) is from front to back in being tending towards closing in shape; The latter half of described spare wheel groove (1) diminishes gradually along circular arc tangential line direction, in pre-large post-small isosceles trapezoid closing in shape; Place arc surface with the shape of the line muscle (3) described in spare tyre contact position place and spare tyre to be consistent, the line muscle (3) on its side is in association graded profile; Described T-shaped muscle (2), line muscle (3) are extended through the upper surface on rear floor always by the bottom surface of spare wheel groove (1), T-shaped muscle (2) is provided with small t-shaped muscle (6).
CN201210248420.2A 2012-07-18 2012-07-18 A kind of reinforcement structure of saloon car rear floor spare wheel groove CN102785714B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210248420.2A CN102785714B (en) 2012-07-18 2012-07-18 A kind of reinforcement structure of saloon car rear floor spare wheel groove

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Application Number Priority Date Filing Date Title
CN201210248420.2A CN102785714B (en) 2012-07-18 2012-07-18 A kind of reinforcement structure of saloon car rear floor spare wheel groove

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CN102785714B true CN102785714B (en) 2015-08-12

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103769435B (en) * 2014-01-15 2015-11-25 北京汽车股份有限公司 A kind of method of calibration of automobile spare tire cabin structure and device
JP6337340B2 (en) * 2014-12-02 2018-06-06 トヨタ車体株式会社 Spare tire fixing part, spare tire housing system and vehicle
CN104787124A (en) * 2015-03-31 2015-07-22 金华职业技术学院 Limousine spare wheel basin supporting plate and rear floor beam frame assembly
CN105835959A (en) * 2016-04-12 2016-08-10 奇瑞商用车(安徽)有限公司 Automobile rear floor spare tire groove structure
CN105835966B (en) * 2016-06-13 2018-03-16 奇瑞汽车股份有限公司 Automobile spare tire mounting structure
US10407098B2 (en) 2017-10-10 2019-09-10 Honda Motor Co., Ltd. Rear vehicle frame and center longitudinal frame member therefor
JP6557915B2 (en) * 2017-12-12 2019-08-14 本田技研工業株式会社 Spare tire support structure for vehicle and spare tire removal method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5860687A (en) * 1997-12-19 1999-01-19 Chrysler Corporation Vehicle spare tire storage system having stiffening plate
CN1907788A (en) * 2005-08-03 2007-02-07 马自达汽车株式会社 Vehicle rear body structure
CN201472485U (en) * 2009-08-31 2010-05-19 东风汽车公司 Disconnect-style beam connecting structure in back floor
CN102267496A (en) * 2011-06-30 2011-12-07 重庆长安汽车股份有限公司 Rear floor for automobile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5860687A (en) * 1997-12-19 1999-01-19 Chrysler Corporation Vehicle spare tire storage system having stiffening plate
CN1907788A (en) * 2005-08-03 2007-02-07 马自达汽车株式会社 Vehicle rear body structure
CN201472485U (en) * 2009-08-31 2010-05-19 东风汽车公司 Disconnect-style beam connecting structure in back floor
CN102267496A (en) * 2011-06-30 2011-12-07 重庆长安汽车股份有限公司 Rear floor for automobile

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Patentee before: Saic Chery Automobile Co., Ltd.

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