CN209037666U - The light-duty fore sub frame of new-energy automobile - Google Patents

Abstract

The utility model discloses a kind of light-duty fore sub frames of new-energy automobile, it is related to vehicle frame technical field, its key points of the technical solution are that including crossbeam and the curvature of space longitudinal tubule (L tubule) beam for being symmetrically fixed on crossbeam both ends, two longitudinal tubule (L tubule) beams and crossbeam are in H-type structure, and support, swing arm rear support, rear connection frame and lateral stability rod bearing before symmetrically arranged vehicle body connection vertical tube beam, swing arm are fixed on two longitudinal tubule (L tubule) beams；Longitudinal tubule (L tubule) beam connects vertical tube beam with vehicle body and cuts bending forming using steel pipe.The utility model solves the problems, such as that existing fore sub frame metal plate is integrally formed occupied space and causes to influence battery placement greatly, increases automobile batteries arrangement space, improves course continuation mileage.

Description

The light-duty fore sub frame of new-energy automobile

Technical field

The utility model relates to vehicle frame technical fields, more specifically, it is related to a kind of light-duty preceding secondary vehicle of new-energy automobile Frame.

Background technique

Fore sub frame is the load bearing component of automobile front axle, the top connection vehicle body of fore sub frame and the load of vehicle front axle Lotus, the bottom of fore sub frame and suspension, wheel and stationary deflector etc. are connect, for by these component sets at a sub-unit To be connect with vehicle body.

Prior art application reference publication No. is the Chinese invention patent application of CN108482488A, and it discloses a kind of vehicles Structure of front auxiliary frame, including the left installation branch of left steering casing, left stiffening plate, mounting bracket, left front oscillating arm bracket, fore sub frame Frame, left front swing arm stiffening plate, left bushing, left rear swing arm bracket reinforcing plate, left rear swing arm bracket, subframe upper plate, right rear-swing arm Bracket, right rear-swing arm bracket reinforcing plate, right bushing, right front swing arm stiffening plate, right turn machine casing, right stiffening plate, fore sub frame Stiffening plate and subframe lower plate afterwards, the subframe upper plate are fixedly connected by welding with subframe lower plate, described outstanding Bracket, left rear swing arm bracket, right rear-swing arm bracket is set to be fixedly connected by welding with subframe upper plate, it is described left front Oscillating arm bracket, left front swing arm stiffening plate, right forward swing arm support, right front swing arm stiffening plate, left steering machine casing, right turn machine set Pipe, left bushing, right bushing, left stiffening plate, right stiffening plate, suspension reinforcing plate pass through weldering with subframe upper plate, subframe lower plate The mode connect is fixedly connected, and the left front oscillating arm bracket is fixedly connected by welding with left front swing arm stiffening plate, described Right forward swing arm support is fixedly connected by welding with right front swing arm stiffening plate, the fore sub frame left installation bracket, preceding Subframe right mounting bracket is bolted with subframe upper plate, subframe lower plate, and both sides pass through three respectively and are bolted, institute It states left rear swing arm bracket reinforcing plate to be fixedly connected by welding with subframe upper plate, left rear swing arm bracket, behind the right side Oscillating arm bracket stiffening plate is fixedly connected by welding with subframe upper plate, right rear-swing arm bracket, after the fore sub frame Stiffening plate is fixedly connected by welding with subframe upper plate, subframe lower plate.

The utility model application has the disadvantage that fore sub frame is welded using metal plate, and weight accounts for while increase It is big with space, the arranging batteries of electric car are influenced, cause new-energy automobile course continuation mileage that expection is not achieved.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of light-duty preceding pairs of new-energy automobile Vehicle frame is in the crossbeam combining form of ∩ type using double-strength pipe beam and cross section, increases electricity while mitigating fore sub frame weight Pond arrangement space improves new-energy automobile course continuation mileage.

To achieve the above object, the utility model provides following technical solution: secondary vehicle before a kind of new-energy automobile is light-duty Frame, including crossbeam and is symmetrically fixed on the curvature of space longitudinal tubule (L tubule) beam at crossbeam both ends, and two longitudinal tubule (L tubule) beams and crossbeam are in H-type structure, and two Be fixed on root longitudinal tubule (L tubule) beam support before symmetrically arranged vehicle body connection vertical tube beam, swing arm, swing arm rear support, rear connection frame with And lateral stability rod bearing；Longitudinal tubule (L tubule) beam connects vertical tube beam with vehicle body and cuts bending forming using steel pipe.

By using above-mentioned technical proposal, subframe is high-intensitive longitudinal tubule (L tubule) beam and crossbeam combining form, guarantee it is sufficiently strong Under the premise of degree and rigidity, purer metal plate welded type fore sub frame weight saving, H-type structure occupies little space, and both realizes light weight Change purpose, and increase battery arrangement space, new-energy automobile course continuation mileage is promoted in terms of two.

In addition, the design of longitudinal tubule (L tubule) beam replaces current metal plate type design, meet different vehicle optimization needs.Because of existing metal plate For the design of metal type fore sub frame when vehicle body and other attachment installation sites change, the fore sub frame change amplitude of metal plate is big, needs Longer time is spent to redesign；And use Guan Liang fore sub frame only need to finely tune curvature, can direction in space according to It needs to bend longitudinal tubule (L tubule) beam, the installation points such as lower swing arm, stabilizer bar, vehicle body connecting bracket before Lai Shixian different structure Arrangement, facilitates the upgrading design of later period vehicle, applicability with higher, and reduction designs and manufactures cost.

The utility model is further arranged to: longitudinal tubule (L tubule) beam one end is bent to form the bending section of arc, other end bending S-shaped, plane where plane where the central axes of bending section and remaining position central axes is arranged in angle.

By using above-mentioned technical proposal, longitudinal tubule (L tubule) beam can according to need to be bent in space, meets different set Meter needs, and improves vehicle upgrading rate.

The utility model is further arranged to: the cross section of the crossbeam is in ∩ type, and the end both side plate of crossbeam cuts shape At the first arc bayonet and the second arc bayonet, the first arc bayonet and the second arc bayonet respectively with longitudinal tubule (L tubule) beam middle profile phase It adapts to.

By using above-mentioned technical proposal, crossbeam can coincide with longitudinal tubule (L tubule) beam to be abutted, one side arc bayonet design limitation Right longitudinal tubule (L tubule) beam is moved up and down with respect to crossbeam, so that position is fixed when welding；The design of another aspect arc bayonet increases crossbeam With the contact area between longitudinal tubule (L tubule) beam, firm welding is improved.

The utility model is further arranged to: the crossbeam is equipped between the first arc bayonet and the second arc bayonet Second flange.

By using above-mentioned technical proposal, on the one hand the second flange limits right longitudinal tubule (L tubule) beam and moves up, on the other hand into One step increases the contact area between crossbeam and right longitudinal tubule (L tubule) beam, and firm welding improves.

The utility model is further arranged to: vehicle body connection vertical tube beam one end is equipped with mutually fits with longitudinal tubule (L tubule) beam exterior contour The third arc bayonet answered, the vehicle body connection vertical tube beam other end are installed with vehicle body connecting support；Vehicle body connecting support includes and vehicle The bolt installation bushing pipe and be horizontally fixed on the mounting plate that bolt installs bushing pipe end that body connection vertical tube beam is fixedly connected, mounting plate It is equipped with mounting hole.

By using above-mentioned technical proposal, vehicle body connection vertical tube beam, which is coincide by third arc bayonet with longitudinal tubule (L tubule) beam, to be abutted, Improve firm welding.Mounting plate connect vertical tube beam with vehicle body by bolt installation bushing pipe and fixes, and increases the bearing of mounting plate Ability.

The utility model is further arranged to: the mounting plate corresponds at the nozzle of bolt installation bushing pipe equipped with circular hole, peace Loading board is located at circular and raises upward to form the flange of annular；The vehicle body connects one of vertical tube beam far from third arc bayonet End is equipped with perforation, and nozzle of the vehicle body connection vertical tube beam close to perforation one end cuts to form truncation end, and vehicle body connects the bending of vertical tube beam It is parallel with other end nozzle end face to truncation end.

By using above-mentioned technical proposal, when bolt installation bushing pipe is abutted with mounting plate, bolt installs bushing pipe and flange Between form gap so that vehicle body connection vertical tube beam truncation end be connected to interstitial site, be conducive to welding when fill solder, increase It is welded with and connects fastness.

The utility model is further arranged to: before the swing arm support one end be equipped with longitudinal tubule (L tubule) beam exterior contour be adapted 4th arc bayonet, support is fixedly connected with front of the car connecting bracket before swing arm.

By using above-mentioned technical proposal, the 4th arc bayonet of support is abutted and is welded with longitudinal tubule (L tubule) beam corresponding position before swing arm Fixation is connect, front of the car connecting bracket can be connect with car body, so that subframe and main car frame form entirety.

The utility model is further arranged to: support cross section is U-shaped before the swing arm, and support both side plate is bent before swing arm There is third flange；Front of the car connecting bracket is fixed with third flanging welded, and front of the car connecting bracket is bent at third flange It is formed with bending part.

By using above-mentioned technical proposal, on the one hand make front of the car connecting bracket concordant with third flange height, it is another Aspect front of the car connecting bracket can frequently be shaken the power of generation in use, and bending part plays certain buffering and makees With, it prevents front of the car connecting bracket and third flanging welded position from shaking welding position in use and cracks, extension use Service life.

The utility model is further arranged to: the both ends of the swing arm rear support are equipped with the 5th arc bayonet and the 6th arc Bayonet, the 5th arc bayonet and the 6th arc bayonet are adapted with the exterior contour of bending section both ends inner circle respectively, are propped up after swing arm It seats against nearly 6th arc bayonet one end and is equipped with connection outer rim, connection outer rim and bending contouring are adapted.

By using above-mentioned technical proposal, swing arm rear support coincide with longitudinal tubule (L tubule) beam to be abutted, and increases swing arm rear support and longitudinal tubule (L tubule) Bonding area between beam increases bonding strength.

The utility model is further arranged to: the bending section top surface is set there are two pilot hole；The stabilizer bar branch Seat is that steel disc metal plate punching forms, and the middle part of lateral stability rod bearing is abutted to bending section recess forms groove, and groove both ends are Flat support portion, support portion are equipped with punching corresponding with pilot hole, and support portion two sides are bent with connecting lateral plate, connecting side Plate is welded and fixed with bending section.

By using above-mentioned technical proposal, after being weldingly fixed on lateral stability rod bearing on bending section, weldering Connecing square nut four has space not interfere, and another aspect groove floor abutting is played a supporting role on the bends, The stress of connecting lateral plate when mitigating stabilizer bar Bearing Seat Force, reduces the possibility of connecting lateral plate weld cracking.

In conclusion the utility model has the advantages that compared with the prior art

1. subframe, in the crossbeam combining form of ∩ type, mitigates fore sub frame weight using double-strength pipe beam and cross section Increase battery arrangement space simultaneously, improves new-energy automobile course continuation mileage；

2. the design of longitudinal tubule (L tubule) beam replaces current metal plate type design, meet different vehicle optimization needs.Because of existing metal plate For the design of type fore sub frame when vehicle body and other attachment installation sites change, the fore sub frame change amplitude of metal plate is big, needs to spend Take longer time redesign；And the fore sub frame of Guan Liang is used only to need to finely tune curvature, it can be in direction in space according to need Longitudinal tubule (L tubule) beam is bent, the cloth of the installation points such as lower swing arm, stabilizer bar, vehicle body connecting bracket before Lai Shixian different structure It sets, facilitates the upgrading design of later period vehicle, applicability with higher, reduction designs and manufactures cost；

3. each component can be fabricated separately, welding assembly is then carried out, is suitble to pipelining, improves production efficiency；

4. weld is designed using arc bayonet between component, the shifting opposite with remaining part of longitudinal tubule (L tubule) beam is on the one hand limited It is dynamic, so that position is fixed when welding, bonding area is on the other hand increased, improves firm welding；

5. the groove floor abutting of lateral stability rod bearing is played a supporting role on the bends, mitigate stabilizer bar branch The stress of connecting lateral plate, reduces the possibility of connecting lateral plate weld cracking, extends the service life of entire subframe when seat stress.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of embodiment；

Fig. 2 is the top view of Fig. 1；

Fig. 3 is the right view of Fig. 2；

Fig. 4 is the explosive view for showing each modular construction；

Fig. 5 is the explosive view for highlighting each component assembling relationship；

Fig. 6 is the structural schematic diagram of crossbeam；

Fig. 7 is the main view of Fig. 6；

Fig. 8 is the bottom view of Fig. 7；

Fig. 9 is the structural schematic diagram of right longitudinal tubule (L tubule) beam；

Figure 10 is the main view of Fig. 9；

Figure 11 is the right view of Figure 10；

Figure 12 is the structural schematic diagram that right vehicle body connects vertical tube beam；

Figure 13 is the top view of Figure 12；

Figure 14 be Figure 13 in A-A to cross-sectional view；

Figure 15 is the structural schematic diagram of vehicle body connecting support；

Figure 16 is the top view of Figure 15；

Figure 17 is the cross-sectional view of B-B direction in Figure 16；

Figure 18 is the structural schematic diagram of support before right swing arm；

Figure 19 is the main view of Figure 18；

Figure 20 is the side view of Figure 18；

Figure 21 is the structural schematic diagram of right swing arm rear support；

Figure 22 is the main view of Figure 21；

Figure 23 is the left view of Figure 21；

Figure 24 is the structural schematic diagram of right rear connection frame；

Figure 25 is the main view of Figure 24；

Figure 26 is the right view of Figure 24；

Figure 27 is the top view of Figure 24；

Figure 28 is the structural schematic diagram of right lateral stability rod bearing；

Figure 29 is the main view of Figure 28；

Figure 30 is the bottom view of Figure 28.

Appended drawing reference: 1, crossbeam；11, retarder spare mounting hole；12, steering system mounting hole；121, square weld nut One；13, lightening hole；14, the first flange；15, the first arc bayonet；16, the second arc bayonet；17, the second flange；2, longitudinal tubule (L tubule) Beam；21, bending section；22, pilot hole；3, vehicle body connects vertical tube beam；31, third arc bayonet；32, it perforates；33, truncation end；4, Support before swing arm；41, the 4th arc bayonet；42, front of the car connecting bracket；421, square weld nut two；422, bending part；43, Third flange；44, bolt mounting holes one；441, square weld nut three；5, swing arm rear support；51, the 5th arc bayonet；52, Six arc bayonets；53, outer rim is connected；54, bolt mounting holes two；55, the 4th flange；6, rear connection frame；61, plate； 611, vehicle body connects bolt mounting holes one；612, vehicle body connects bolt mounting holes two；62, limit plate is held；621, side limiting section； 63, arc cage plate；7, vehicle body connecting support；71, mounting plate；711, mounting hole；712, flange；72, bolt installs bushing pipe；8, horizontal To stabilizing rod support；81, groove；82, support portion；821, connecting lateral plate；822, punching；823, square weld nut four.

Specific embodiment

A kind of light-duty fore sub frame of new-energy automobile as depicted in figs. 1 and 2, including crossbeam 1, is fixed on 1 both ends pair of crossbeam The longitudinal tubule (L tubule) beam 2 of setting, vehicle body is claimed to connect support 4, swing arm rear support 5 and rear connection frame 6 before vertical tube beam 3, swing arm.Wherein indulge Pipe beam 2 includes the left longitudinal tubule (L tubule) beam and right longitudinal tubule (L tubule) beam for being weldingly fixed on 1 both ends of crossbeam, and vehicle body connects vertical tube beam 3 and connects including left vehicle body It connects vertical tube beam and connects vertical tube beam with right vehicle body, support 4 includes left swing arm rear support and right swing arm rear support before swing arm, is propped up after swing arm Seat 5 includes left swing arm rear support and right swing arm rear support, and rear connection frame 6 includes that left back vehicle body connection frame and right rear connect Connect frame.Left vehicle body connection vertical tube beam, left swing arm rear support and left back vehicle body connection frame are welded and fixed with left longitudinal tubule (L tubule) beam respectively, right vehicle Body connection vertical tube beam, right swing arm rear support and right rear connection frame are welded and fixed with right longitudinal tubule (L tubule) beam respectively.

Referring to figs. 2 and 3,4 edge of support before rear connection frame 6, swing arm rear support 5, vehicle body connection vertical tube beam 3 and swing arm 2 length of longitudinal tubule (L tubule) beam set gradually.

For ease of description, connected below with right longitudinal tubule (L tubule) beam, right vehicle body connection vertical tube beam, right swing arm rear support, right rear Connect support 4, swing arm rear support 5 and rear connection frame before longitudinal tubule (L tubule) beam 2, vehicle body connection vertical tube beam 3, swing arm are discussed in detail for frame Structure connection relationship between 6.

With reference to Fig. 4 and Fig. 5, right longitudinal tubule (L tubule) beam 2 can use high-strength alloy steel pipe, and one end of right longitudinal tubule (L tubule) beam 2 is equipped with arc Bending section 21, right longitudinal tubule (L tubule) beam 2 can be using bending device machine-shaping or casting and forming.The middle part of right longitudinal tubule (L tubule) beam 2 with Crossbeam 1 is fixedly connected.

21 top surface of bending section of right longitudinal tubule (L tubule) beam 2 is set there are two pilot hole 22, is fixed with stabilizer bar branch at pilot hole 22 Seat 8.

One end of right vehicle body connection vertical tube beam 3 is equipped with the third arc bayonet 31 being adapted with right 2 outer profile of longitudinal tubule (L tubule) beam, right Vehicle body connection vertical tube beam 3 abuts and junction is connected and fixed by the way that third arc bayonet 31 and right longitudinal tubule (L tubule) beam 2 are identical.Right vehicle body connects The other end for connecing vertical tube beam 3 is equipped with perforation 32, is fixed with vehicle body connecting support 7 in perforation 32.

Support 4 is equipped with the 4th arc being adapted with right longitudinal tubule (L tubule) beam 2 far from 21 one end outer profile of bending section before right swing arm Bayonet 41, support 4, which is coincide by the 4th arc bayonet 41 with right longitudinal tubule (L tubule) beam 2, before right swing arm abuts and junction is welded and fixed.

One end of right swing arm rear support 5 is equipped with the 5th arc bayonet 51 and its other end is equipped with the 6th arc bayonet 52, the Five arc bayonets 51 and the 6th arc bayonet 52 are adapted with circle contour in the both ends of bending section 21 respectively, so that propping up after right swing arm Seat 5 coincide with right longitudinal tubule (L tubule) beam 2 to abut, and is then welded and fixed in the two junction.

Right rear bracket 6 is arranged along 21 end axis of bending section and is welded and fixed with bending section 21.

With reference to Fig. 6 and Fig. 7, in order to keep mitigating its weight on the basis of 1 intensity of crossbeam, crossbeam 1 can be designed to cross section In ∩ type, crossbeam 1 can be the production of high-strength alloy steel plate, lighter weight while having higher-strength.In order to further subtract The two sides of the weight of light crossbeam 1, crossbeam 1 are equipped with multiple lightening holes 13.Crossbeam 1 is respectively equipped with one close to the principal plane of end positions A steering system mounting hole 12,12 bottom side of steering system mounting hole is fixed with square weld nut 1, to install steering system System.The light-duty fore sub frame is mainly the design of motor postposition rear-guard vehicle, close in principal plane for suitable for preposition forerunner's vehicle 12 position of steering system mounting hole is respectively provided with a retarder spare mounting hole 11, installs retarder as needed for the later period. 1 both side plate edge of crossbeam deviates from relatively is bent to form the first flange 14, increases the intensity of 1 side plate of crossbeam, it is anti-to improve 1 side plate of crossbeam Deformability.

In order to enable crossbeam 1 is connected firmly with right longitudinal tubule (L tubule) beam 2, the first arc is respectively equipped in the both side plate end of crossbeam 1 Bayonet 15 and the second arc bayonet 16, the first arc bayonet 15 and the second arc bayonet 16 and right 2 middle part outer profile phase of longitudinal tubule (L tubule) beam It adapts to, crossbeam 1 is coincide with right longitudinal tubule (L tubule) beam 2 and is abutted, the right longitudinal tubule (L tubule) beam 2 of one side arc bayonet design limitation is relatively horizontal Beam 1 moves up and down, so that position is fixed when welding；The design of another aspect arc bayonet increases between crossbeam 1 and right longitudinal tubule (L tubule) beam 2 Contact area, improve firm welding.

With reference to Fig. 7 and Fig. 8, since the middle bent of right longitudinal tubule (L tubule) beam 2 tilts, the first arc bayonet 15 and the second arc bayonet It is spaced a distance between 16 along 1 length direction of crossbeam, so that the center of circle of the first arc bayonet 15 and the second arc bayonet 16 connects Line and crossbeam 1 make an angle alpha setting.It is formed between the first arc bayonet 15 and the second arc bayonet 16 in 1 end of crossbeam Second flange 17,17 one side of the second flange limit right longitudinal tubule (L tubule) beam 2 and move up, on the other hand further increase crossbeam 1 with Contact area between right longitudinal tubule (L tubule) beam 2, firm welding improve.

With reference to Fig. 9 to Figure 11, whole right longitudinal tubule (L tubule) beam 2 is in J-type, plane and other end central axes where 21 central axes of bending section Place plane is arranged in angle.Right longitudinal tubule (L tubule) beam 2 is far from 21 one end of bending section in the recessed bending of place plane, bending radius r.It is right The middle part of longitudinal tubule (L tubule) beam 2 raises upward bending in place plane, bending radius R.The middle bent position and bending section of right longitudinal tubule (L tubule) beam 2 21 and the other end it is tangent.Difference in height is d between the bottom end and the other end of bending section 21.

The design of longitudinal tubule (L tubule) beam replaces current metal plate type design, meets different vehicle optimization needs.Because of existing metal plate type When vehicle body and other attachment installation sites change, the fore sub frame change amplitude of metal plate is big for fore sub frame design, needs to spend Longer time redesigns；And the fore sub frame of Guan Liang is used only to need to finely tune curvature, it can be as needed in direction in space Longitudinal tubule (L tubule) beam is bent, the cloth of the installation points such as lower swing arm, stabilizer bar, vehicle body connecting bracket before Lai Shixian different structure It sets, facilitates the upgrading design of later period vehicle, applicability with higher, reduction designs and manufactures cost.

Referring to figs 12 to Figure 14, right vehicle body connection vertical tube beam 3 can be made of round steel pipe, 31 He of third arc bayonet Perforation 32 can be cut using tool.Right vehicle body connection vertical tube beam 3 cut close to 32 one end of perforation to be formed truncation end 33 with Increase the area of port, while passing through 32 installation of perforation convenient for vehicle body connecting support 7 and fixing.The two of right vehicle body connection vertical tube beam 3 End bending is so that both ends central axes are arranged in angle β, and truncation end 33 is parallel with the other end face at this time.

With reference to Figure 15 to Figure 17, vehicle body connecting support 7 includes that the bolt installation bushing pipe 72 of circular tube shaped is pacified with bolt is fixed on The mounting plate 71 of the tongue type of 72 one end of fitted lining pipe, mounting plate 71 are equipped with mounting hole 711.Bolt installation bushing pipe 72 can be high-strength Alloy pipe is spent, the nozzle position of the corresponding bolt installation bushing pipe 72 of mounting plate 71 is equipped with circular hole, and mounting plate 71 and bolt installation serve as a contrast Pipe 72, which can be, to be welded and fixed.In order to improve welding effect, mounting plate 71 is located at bore edges and raises upward to form the convex of annular Edge 712 forms gap between bolt installation bushing pipe 72 and flange 712 when bolt installation bushing pipe 72 is abutted with mounting plate 71, so that The truncation end 33 of right vehicle body connection vertical tube beam 3 is connected to interstitial site, is conducive to fill solder when welding, increases firm welding Property.

With reference to Figure 18 and Figure 19,4 cross section of support is U-shaped before swing arm, and the edge of support 4 has been bent to form third before swing arm Flange 43, to improve the stiffness and strength of support 4 before swing arm.The both side plate of support 4 is equipped with bolt mounting holes 1 before swing arm, In be fixed with square weld nut 3 441 at a bolt mounting holes 1.Before swing arm support 4 far from the 4th arc bayonet 41 one It holds and is arranged between end face and open one side in angle γ, reduce sharp corners.

With reference to Figure 18 and Figure 20, the side third flange 43 of support 4 is welded with front of the car connecting bracket 42, front truck before swing arm Body connecting bracket 42 can be steel disc and bend, and square weld nut 2 421 is fixed on steel disc.Front of the car connecting bracket 42 is leaned on It is bent to form bending part 422 at nearly third flange 43, on the one hand makes remaining steel disc and 43 concordant, another party of height of third flange Vehicle body connecting bracket 42 can frequently be shaken the power of generation in use in front, and bending part 422 plays certain buffering Effect prevents front of the car connecting bracket 42 and 43 welding position of third flange from shaking welding position cracking in use.

With reference to figures 21 to Figure 23,5 cross section of right swing arm rear support is U-shaped, and the both side plate edge of right swing arm rear support 5 is equipped with For increasing the 4th flange 55 of stiffness and strength.The two sides of right swing arm rear support 5 are respectively equipped with a bolt mounting holes 2 54, For installing swing arm.Right swing arm rear support 5 is equipped with the connection outer rim 53 of arc far from 51 one end of the 5th arc bayonet, connects outer rim 53 is adaptable with the bending section 21 of right longitudinal tubule (L tubule) beam 2, abuts so that right swing arm rear support 5 coincide with right longitudinal tubule (L tubule) beam 2, increases right swing arm Bonding area between rear support 5 and right longitudinal tubule (L tubule) beam 2 increases bonding strength.

With reference to Figure 24 to Figure 27, rear connection frame 6 includes integrally formed plate 61, end limit plate 62 and arc cage plate 63, it holds and is arranged between limit plate 62 and plate 61 in angle theta, arc cage plate 63 is located at the two sides of end limit plate 62 with plate 61, Arc cage plate 63 is arranged perpendicular to end limit plate 62, the central axis of arc cage plate 63 and the length direction of plate 61 in included angle X.It is flat The different vehicle body connection bolt mounting holes 1 in aperture are equipped with along 63 central axial direction of arc cage plate on plate 61 and vehicle body connects Connecting bolt mounting hole 2 612.

The inner wall radius of arc cage plate 63 is identical as right longitudinal tubule (L tubule) beam 2, and such rear connection frame 6 can be fixed in right longitudinal tubule (L tubule) Hold limit plate 62 far from arc cage plate 63 1 in order to enable right 2 position of longitudinal tubule (L tubule) beam is fixed when welding in 21 end of bending section of beam 2 Side is extended with side limiting section 621, and side limiting section 621 and arc cage plate 63, which cooperate, fixes bending section 21, is conducive to welding operation. 63 a part of arc cage plate is supported on bending section 21, the possibility of 6 cracking of rear connection frame when mitigating 61 stress of plate.

With reference to Figure 28 to Figure 30, lateral stability rod bearing 8 can be formed using steel disc metal plate punching, lateral stability rod bearing 8 middle concave part is flat support portion 82 at groove 81, both ends, and 82 two sides of support portion are connected with perpendicular to support The connecting lateral plate 821 that portion 82 is arranged, one side of the connecting lateral plate 821 far from support portion 82 is the cambered surface being adapted with bending section 21, Lateral stability rod bearing 8 is coincide to be connected on bending section 21.On support portion 82 be equipped with a punching 822, two Two pilot holes 22 in punching 822 and bending section 21 correspond.Punching 822 is located at 821 side of connecting lateral plate and is fixed with weldering Connect square nut 4 823.The depth of groove 81 is higher than square weld nut 4 823, on the one hand makes the welding of lateral stability rod bearing 8 solid After being scheduled on bending section 21, square weld nut 4 823 has space not interfere, and 81 bottom surface of another aspect groove abuts It plays a supporting role on bending section 21, the stress of connecting lateral plate 821 when mitigating 8 stress of lateral stability rod bearing reduces connection The possibility of 821 weld of side plate cracking.

The assemble method of the light-duty fore sub frame of the new-energy automobile is as follows:

By support 4, left/right swing arm before crossbeam 1, left/right longitudinal tubule (L tubule) beam 2, left/right vehicle body connection vertical tube beam 3, left/right swing arm Rear support 5, left/right rear connection frame 6, left/right lateral stability rod bearing 8 are got all the ready.

The middle part of left/right longitudinal tubule (L tubule) beam 2 is snapped onto the first arc bayonet 15 and the second arc bayonet 16 of crossbeam 1, is moved Dynamic left/right longitudinal tubule (L tubule) beam 2 adjusts pad and reaches design position and it is close between crossbeam 1, is then welded and fixed, Welding manner is to be fully welded.

The third arc bayonet 31 of left/right vehicle body connection vertical tube beam 3 is abutted and welded with 2 corresponding position of left/right longitudinal tubule (L tubule) beam Connect fixation.

4th arc bayonet 41 of support 4 before left/right swing arm is abutted with 2 corresponding position of left/right longitudinal tubule (L tubule) beam and welded solid It is fixed.

5th arc bayonet 51 of left/right swing arm rear support 5 and the 6th arc bayonet 52 are distinguished abutting inflection portion 21 Both ends, the mobile left/right swing arm rear support 5 that adjusts make connection outer rim 53 and bending section 21 coincide, are then welded and fixed.

6 sets of the left/right rear connection frame ends in bending section 21, so that bending section 21 is abutted with end limit plate 62, Then it is welded and fixed.

Punching 822 on left/right lateral stability rod bearing 8 is aligned with the pilot hole 22 on bending section 21, it then will be even Side plate 821 is connect to be welded and fixed with bending section 21.

Each quality of welding spot is checked after welding, and repair welding is carried out to existing defects position, finally clears up weld burr.

The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.

Claims (10)

1. a kind of light-duty fore sub frame of new-energy automobile, it is characterised in that: including crossbeam (1) and be symmetrically fixed on crossbeam (1) two The curvature of space longitudinal tubule (L tubule) beam (2) at end, two longitudinal tubule (L tubule) beams (2) and crossbeam (1) are in H-type structure, are fixed on two longitudinal tubule (L tubule) beams (2) pair Support (4), swing arm rear support (5), rear connection frame (6) and transverse direction before claiming the vehicle body of setting to connect vertical tube beam (3), swing arm Stabilizing rod support (8)；Longitudinal tubule (L tubule) beam (2) connects vertical tube beam (3) with vehicle body and cuts bending forming using steel pipe.

2. the light-duty fore sub frame of new-energy automobile according to claim 1, it is characterised in that: described longitudinal tubule (L tubule) beam (2) one end It is bent to form the bending section (21) of arc, other end bending is S-shaped, in plane where bending section (21) central axes and remaining position Plane is arranged in angle where axis.

3. the light-duty fore sub frame of new-energy automobile according to claim 2, it is characterised in that: the crossbeam (1) it is transversal Face is in ∩ type, and the end both side plate of crossbeam (1) cuts to form the first arc bayonet (15) and the second arc bayonet (16), the first arc Shape bayonet (15) and the second arc bayonet (16) are adapted with longitudinal tubule (L tubule) beam (2) middle profile respectively.

4. the light-duty fore sub frame of new-energy automobile according to claim 3, it is characterised in that: the crossbeam (1) is located at the The second flange (17) are equipped between one arc bayonet (15) and the second arc bayonet (16).

5. the light-duty fore sub frame of new-energy automobile according to claim 1, it is characterised in that: the vehicle body connects vertical tube beam (3) one end is equipped with the third arc bayonet (31) being adapted with longitudinal tubule (L tubule) beam (2) exterior contour, and it is another that vehicle body connects vertical tube beam (3) End is installed with vehicle body connecting support (7)；Vehicle body connecting support (7) includes the bolt for connecting vertical tube beam (3) with vehicle body and being fixedly connected Installation bushing pipe (72) and the mounting plate (71) for being horizontally fixed on bolt installation bushing pipe (72) end, mounting plate (71) are equipped with installation Hole (711).

6. the light-duty fore sub frame of new-energy automobile according to claim 5, it is characterised in that: the mounting plate (71) is corresponding Bolt is installed and is equipped with circular hole at the nozzle of bushing pipe (72), and mounting plate (71) is located at circular and raises upward to form the flange of annular (712)；Vehicle body connection vertical tube beam (3) is equipped with perforation (32) far from one end of third arc bayonet (31), and vehicle body connection is perpendicular Nozzle of the Guan Liang (3) close to perforation (32) one end cuts to be formed truncation end (33), and vehicle body connection vertical tube beam (3) is bent to truncation end (33) parallel with other end nozzle end face.

7. the light-duty fore sub frame of new-energy automobile according to claim 1, it is characterised in that: support (4) before the swing arm One end is equipped with the 4th arc bayonet (41) being adapted with longitudinal tubule (L tubule) beam (2) exterior contour, before support (4) is fixedly connected with before swing arm Vehicle body connecting bracket (42).

8. the light-duty fore sub frame of new-energy automobile according to claim 7, it is characterised in that: support (4) before the swing arm Cross section is U-shaped, and support (4) both side plate is bent with third flange (43) before swing arm；Front of the car connecting bracket (42) is turned over third Side (43) is welded and fixed, and front of the car connecting bracket (42) has been bent to form bending part (422) at third flange (43).

9. the light-duty fore sub frame of new-energy automobile according to claim 2, it is characterised in that: the swing arm rear support (5) Both ends be equipped with the 5th arc bayonet (51) and the 6th arc bayonet (52), the 5th arc bayonet (51) and the 6th arc bayonet (52) it is adapted respectively with the exterior contour of bending section (21) both ends inner circle, swing arm rear support (5) is close to the 6th arc bayonet (52) one end is equipped with connection outer rim (53), and connection outer rim (53) and bending section (21) profile are adapted.

10. the light-duty fore sub frame of new-energy automobile according to claim 2, it is characterised in that: bending section (21) top Face is set there are two pilot hole (22)；The lateral stability rod bearing (8) is that steel disc metal plate punching forms, lateral stability rod bearing (8) middle part abuts to bending section (21) recess and is formed groove (81), and groove (81) both ends are the support portion of plate (61) shape (82), support portion (82) is equipped with punching (822) corresponding with pilot hole (22), and support portion (82) two sides are bent with connecting lateral plate (821), connecting lateral plate (821) is welded and fixed with bending section (21).