CN101407236A - Two-wheel motorcycle with curved girder - Google Patents
Two-wheel motorcycle with curved girder Download PDFInfo
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- CN101407236A CN101407236A CNA200810233115XA CN200810233115A CN101407236A CN 101407236 A CN101407236 A CN 101407236A CN A200810233115X A CNA200810233115X A CN A200810233115XA CN 200810233115 A CN200810233115 A CN 200810233115A CN 101407236 A CN101407236 A CN 101407236A
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- support tube
- tailstock
- curve
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Abstract
The invention discloses a two-wheel curved beam motorcycle frame, wherein a main beam pipe of the motorcycle frame is high in the front part and low in the rear part, the front end of the main beam pipe is welded with a motorcycle head pipe, the back end of the main beam pipe is welded with a hanging seat, a tail frame of the motorcycle frame is low in the front part and low in the rear part, the tail frame is welded with a rear damping support seat, the front ends of two longitudinal beams of the tail frame are welded on the middle part of the main beam pipe, support pipes which are nearly curved to be S-shaped are welded between the longitudinal beams of the tail frame and the hanging seat, the support pipes comprises a left support pipe and a right support pipe, and are asymmetrically arranged on both sides of the tail frame, and a curved angle of a backward curved part where the upper end of the left support pipe is welded with the left longitudinal beam of the tail frame is more forward than a curved angle of a backward curved part where the upper end of the right support pipe is welded with the right longitudinal beam of the tail frame. By improving the structure of the left support pipe of the motorcycle frame, the motorcycle frame has the advantages of increasing the gaps between the left support pipe and the rear wheel tire of the motorcycle, avoiding the friction between the left support pipe and the rear wheel tire of the motorcycle and ensuring the strength of the motorcycle frame.
Description
Technical field
The present invention relates to a kind of two-wheel vehicle carriage, particularly a kind of two-wheel motorcycle with curved girder.
Background technology
The two-wheeled bent-beam motorcycle makes the rider HOP ON because of the light and handy and special camber beam structure of vehicle body, is greatly favored by consumers.Because due to the light and handy and special camber beam structure of vehicle body, so component layouts compactness of this motor bike, the structural requirement of vehicle frame is simple, small and exquisite, so the size to the height of vehicle frame and width is strict usually, in case the size super large of vehicle frame has just lost the light and handy characteristic of vehicle body of two-wheeled bent-beam motorcycle.At present, the two-wheeled bent-beam motorcycle passes through development for many years, produce, the width dimensions of vehicle frame, the size and the fitted position of various parts finalize the design almost, referring to Fig. 4, the basic structure of its vehicle frame is the low shape in high back before the girder pipe 2 of vehicle frame is, girder pipe front end welding head tube 1, rear end welding hangoff receptacle 11, the tailstock 3 of vehicle frame is front-low-rear-high shape, welding back damping supporting seat 5 on the tailstock, the front end of tailstock two longerons is welded in the stage casing of girder pipe, the support tube of the S-shaped bending of welding between tailstock longeron and the hangoff receptacle, about support tube 12 is divided into two, for guaranteeing the intensity of vehicle frame, the length of two support tubes is identical to be that symmetry is crooked to be provided with, the support tube lower end be length 112mm to front curve, this is welded on the hangoff receptacle to front curve, make the axis and the girder pipe welding axis, tailstock place of support tube middle part straight section form 107 ° of angles, the support tube upper end is the curve backward of length 106mm, this backward curve be welded on tailstock right vertical beam bottom surface, its corner is positioned under the back damping supporting seat, make the axis and the tailstock right vertical beam axis of support tube middle part straight section form 31.7 ° of angles, make the oblique the wideest position of support tube approaching through trailing wheel both sides and tire cross-sectional plane, cause the gap between support tube and the trailing wheel less, and because the left side of motor bike will be provided with chain drive, therefore left support tube is for to step down to chain drive, left side support tube is to motor bike longitudinal center deflection, the tire that makes motor cycle rear wheel 8 leans on and during forward end position being in, gap between tyre rim and the left support tube stage casing has only 5mm, in use, the rear tire of motor bike causes friction with left support tube because of distortion easily, make the motor bike can't cruising, even cause traffic accident.Because the size and the fitted position of each parts are finalized the design, if the width dimensions by widening vehicle frame or some element sizes are changed, to cause mould to be changed in a large number, both strengthened the input of productive costs, lost the small and exquisite characteristic of beam bending bicycle again, how to address this problem, perplex this motor bike manufacture always.
Summary of the invention
The objective of the invention is problem at the prior art existence, a kind of two-wheel motorcycle with curved girder is provided, and it had both increased the gap between left support tube and the motor cycle rear wheel tire by improving the structure of vehicle frame left side support tube, avoid both to rub, can guarantee the intensity of vehicle frame again.
The object of the present invention is achieved like this: low shape behind the girder Guan Chengqian height of vehicle frame, girder pipe front end welding head tube, rear end welding hangoff receptacle, the tailstock of vehicle frame is front-low-rear-high shape, welding back damping supporting seat on the tailstock, the front end of tailstock two longerons is welded in the stage casing of girder pipe, the support tube of the S-shaped bending of welding between tailstock longeron and the hangoff receptacle, about support tube is divided into two, the non-symmetrical tailstock both sides that are arranged on of described two support tubes, left support tube upper end is more forward with the corner of the curve backward of right vertical beam welding than right support tube upper end with the residing position, corner of the curve backward of tailstock left side longeron welding.
The curve backward of described left support tube upper end is welded on the longeron bottom surface, a tailstock left side of back damping supporting seat below, the corner of curve is positioned at back damping supporting seat the place ahead backward, make the axis of left support tube middle part straight section be provided with a brace panel with the left longeron axis formation of tailstock angle with the axis that tailstock left side longeron axis forms 34～40 ° of described left support tubes of angles middle part straight sections, being welded on the hangoff receptacle to front curve of support tube lower end, a left side makes the axis at the welding tailstock place of left support tube middle part straight section axis and girder pipe form 96～102 ° of angles.
The curve backward of described right support tube upper end is welded on the tailstock right vertical beam bottom surface of back damping supporting seat below, the corner of curve is positioned under the back damping supporting seat backward, make the axis and the tailstock right vertical beam axis of right support tube middle part straight section form 31～35 ° of angles, being welded on the hangoff receptacle to front curve of right support tube lower end makes the axis of right support tube middle part straight section and 103～107 ° of angles of axis formation at the welding tailstock place of girder pipe.
Owing to adopted such scheme, with two non-symmetrical tailstock both sides that are arranged on of support tube, support tube upper end, a left side is more forward with the corner of the curve backward of right vertical beam welding than right support tube upper end with the residing position, corner of the curve backward of tailstock left side longeron welding, make of the position reach of left support tube straight section, leave the wideest position of tire cross-sectional plane through the part of trailing wheel side.For satisfying the straight section reach of left support tube, being welded on the hangoff receptacle of support tube lower end, a left side to front curve, make the axis of left support tube middle part straight section and 96～102 ° of angles of axis formation at the welding tailstock place of girder pipe, the curve backward of support tube upper end, a left side is welded on the longeron bottom surface, a tailstock left side of back damping supporting seat below, its corner is positioned at back damping supporting seat the place ahead, make the axis and the tailstock left side longeron axis of left support tube middle part straight section form 34～40 ° of angles, make left support tube and the nearest position of trailing wheel spacing thus, leave the wideest position of tire cross-sectional plane, be at the rear tire of bent-beam motorcycle and leaning on and during forward end position, the gap that also has 14mm between tyre rim and the left support tube stage casing, even rear tire produces distortion, can not rub with left support tube yet, guarantee that motor bike can cruising, avoided the traffic accident generation that friction causes taking place because of tyre rim and left support tube.Simultaneously for making the position reach of left support tube middle part straight section, the length to front curve of support tube lower end, a left side and hanger bracket welding is made as 60～80mm, make the bottom reach of left support tube, and left support tube upper end is made as 160～220mm with the length of the curve backward of tailstock left side longeron welding, this backward curve be welded on the longeron bottom surface, a tailstock left side of damping supporting seat below, back, its corner is positioned at damping supporting seat the place ahead, back, make tailstock be subjected to shaking force stronger the strong support that back damping supporting seat place still obtains left support tube is set; Put forth effort to occur stress deformation for preventing tailstock left side longeron because of left support tube corner, in corner, left support tube upper end, be the axis of left support tube middle part straight section and angle welding one gusset that is used to gain in strength that tailstock left side longeron axis forms, make the intensity of body frame structure for automotive unaffected.And the right support tube lower end that is positioned at the tailstock right side be length 100～112mm to front curve, this is welded on the hangoff receptacle to front curve, make the axis of right support tube middle part straight section and 103～107 ° of angles of axis formation at the welding tailstock place of girder pipe, right support tube upper end is the curve backward of length 106～130mm, this backward curve be welded on tailstock right vertical beam bottom surface, its corner is positioned under the back damping supporting seat, make the axis and the tailstock right vertical beam axis of right support tube middle part straight section form 31～35 ° of angles, basically the structure that keeps original vehicle frame thus makes the intensity of vehicle frame unaffected.
For guaranteeing that left and right support tube can conveniently be welded on the present position according to designing requirement, so described left support tube lower end is 120～126 ° to the bent angle of front curve, the upper end bent angle of curve backward is 140～146 ° simultaneously; The bent angle of described right support tube lower end curve is 127～131 °, and the bent angle of upper end curve is 145～149 °.
The present invention is not doing under the situation of bigger change the vehicle frame of two-wheeled bent-beam motorcycle, especially under the situation that does not change frame width, by the left support tube that has key issue is improved, solved the long-standing problem of two-wheeled bent-beam motorcycle, do not change and need not make a large amount of moulds, the cost of dealing with problems has been dropped to minimum, can be motor bike manufacturing enterprise and save a large amount of funds.
The invention will be further described below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is vehicle frame of the present invention left side structural representation;
Fig. 2 is a vehicle frame of the present invention right side structural representation;
Fig. 3 is the upward view of body frame structure for automotive of the present invention;
Fig. 4 is the left side structural representation of prior art vehicle frame.
In the accompanying drawing, 1 is head tube, and 2 is the girder pipe, 3 is tailstock, and 3a is left longeron, and 3b is a right vertical beam, 4 is gusset, and 5 is back damping supporting seat, and 6 is the bumper pivot shaft, 7 is the taillight support tube, and 8 is trailing wheel, and 9 is chain stay, 10 is right support tube, 11 is hangoff receptacle, and 12 is left support tube, and 13 are the forward mounting support.
The specific embodiment
Referring to Fig. 1 to Fig. 3, the low shape in high back before the girder pipe 2 of two-wheel motorcycle with curved girder of the present invention is, girder pipe 2 front ends welding head tube 1, rear end welding hangoff receptacle 11, the tailstock of vehicle frame is front-low-rear-high shape, welding back damping supporting seat 5 on the tailstock, fixedly install on the back damping supporting seat 5 and be useful on the bumper pivot shaft 6 that the back damping is installed, the afterbody of tailstock is welded with taillight support tube 7, the front end of tailstock two longerons is welded in the stage casing of girder pipe 2, being positioned at the tailstock of tailstock below and the angle a of girder pipe 2 axis is 40～42 °, be welded with the forward mounting support 13 of driving engine on the girder pipe near welding tailstock place, this forward mounting support 13 hangs driving engine with hangoff receptacle 11, and hangoff receptacle 11 is hinged with the axle of chain stay 9 front ends, and trailing wheel 8 is installed in chain stay 9 rear ends.Welding is the support tube that is similar to the bending of S shape between described tailstock longeron and the hangoff receptacle 11, and about support tube is divided into two, the same length of two support tubes.The non-symmetrical tailstock both sides that are arranged on of described two support tubes, left support tube 12 lower ends that wherein are positioned at the tailstock left side are to front curve, bent angle to front curve is 120～126 °, length L 1 to front curve is 60～80mm, this is welded on the hangoff receptacle 11 to front curve, make the axis at the welding tailstock place of the axis of left support tube 12 middle part straight sections and girder pipe 2 form 96 °～102 ° angle c, support tube 12 upper ends, a left side are curve backward, the bent angle of curve is 140 °～146 ° backward, the length L 2 of curve is 160～220mm backward, this backward curve be welded on the longeron 3a bottom surface, a tailstock left side of damping supporting seat 5 belows, back, its corner is positioned at back damping supporting seat 5 the place aheads, make the axis and the tailstock left side longeron 3a axis of left support tube 12 middle part straight sections form 34～40 ° of angle b, this angle welding one gusset that is used to gain in strength 4, after adopting such structure, make the reach of left support tube 12 stage casings and position, trailing wheel 8 immediate position, be at trailing wheel 8 and lean on and during forward end position, having spacing between the tire of a left side support tube 12 stage casings and trailing wheel 8 at least is gap P about 14mm, can avoid the rear tyre back that deforms the phenomenon that rubs with left support tube to occur.Right support tube 10 lower ends that are positioned at the tailstock right side be length 100～112mm to front curve, bent angle to front curve is 127～131 °, this is welded on the hangoff receptacle to front curve, make the axis at the welding tailstock place of the axis of right support tube 10 middle part straight sections and girder pipe 2 form 103～107 ° of angles, right support tube 10 upper ends are the curve backward of length 106～130mm, the bent angle of curve is 145～149 ° backward, this backward curve be welded on the tailstock right vertical beam 3b bottom surface of damping supporting seat 5 belows, back, its corner is positioned under the back damping supporting seat 5, makes the axis of right support tube 10 middle part straight sections and tailstock right vertical beam 3b axis form 31～35 ° of angles.After adopting said structure, left support tube upper end is more forward with the corner of the curve backward of right vertical beam welding than right support tube upper end with the residing position, corner of the curve backward of tailstock left side longeron welding.For guaranteeing between left support tube 12 and the trailing wheel 8 enough clearance spaces are arranged, the cross-sectional width of described left support tube 12 can be less than right support tube 10 cross-sectional width.
Claims (7)
1. two-wheel motorcycle with curved girder, low shape behind the girder Guan Chengqian height of vehicle frame, girder pipe front end welding head tube, rear end welding hangoff receptacle, the tailstock of vehicle frame is front-low-rear-high shape, welding back damping supporting seat on the tailstock, the front end of tailstock two longerons is welded in the stage casing of girder pipe, the support tube of the S-shaped bending of welding between tailstock longeron and the hangoff receptacle, about support tube is divided into two, it is characterized in that: the non-symmetrical tailstock both sides that are arranged on of described two support tubes, left support tube upper end is more forward with the corner of the curve backward of right vertical beam welding than right support tube upper end with the residing position, corner of the curve backward of tailstock left side longeron welding.
2. according to the described two-wheel motorcycle with curved girder of claim 1, it is characterized in that: the curve backward of described left support tube upper end is welded on the longeron bottom surface, a tailstock left side of back damping supporting seat below, the corner of curve is positioned at back damping supporting seat the place ahead backward, make the axis of left support tube middle part straight section be provided with a brace panel with the left longeron axis formation of tailstock angle with the axis that tailstock left side longeron axis forms 34～40 ° of described left support tubes of angles middle part straight sections, being welded on the hangoff receptacle to front curve of support tube lower end, a left side makes the axis of left support tube middle part straight section and 96～102 ° of angles of axis formation at the welding tailstock place of girder pipe.
3. two-wheel motorcycle with curved girder according to claim 1, it is characterized in that: the curve backward of described right support tube upper end is welded on the tailstock right vertical beam bottom surface of back damping supporting seat below, the corner of curve is positioned under the back damping supporting seat backward, make the axis and the tailstock right vertical beam axis of right support tube middle part straight section form 31～35 ° of angles, being welded on the hangoff receptacle to front curve of right support tube lower end makes the axis of right support tube middle part straight section and 103～107 ° of angles of axis formation at the welding tailstock place of girder pipe.
4. two-wheel motorcycle with curved girder according to claim 1, it is characterized in that: described left support tube lower end to the long 60～80mm of front curve, the crooked backward minister 160～220mm of support tube upper end, a left side, described right support tube lower end to the long 100～112mm of front curve, the crooked backward minister 106～130mm of right support tube upper end.
5. according to claim 1,2 or 4 arbitrary described two-wheel motorcycle with curved girder, it is characterized in that: described left support tube lower end is 120～126 ° to the bent angle of front curve, and the upper end bent angle of curve backward is 140～146 °.
6. according to claim 1,3 or 4 arbitrary described two-wheel motorcycle with curved girder, it is characterized in that: described right support tube lower end is 127～131 ° to the bent angle of front curve, and the upper end bent angle of curve backward is 145～149 °.
7. according to the described two-wheel motorcycle with curved girder of claim 1～4, it is characterized in that: the cross-sectional width of described left support tube is less than right support tube cross-sectional width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810233115A CN100593493C (en) | 2008-11-25 | 2008-11-25 | Motorcycle frame with bent beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810233115A CN100593493C (en) | 2008-11-25 | 2008-11-25 | Motorcycle frame with bent beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101407236A true CN101407236A (en) | 2009-04-15 |
| CN100593493C CN100593493C (en) | 2010-03-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810233115A Expired - Fee Related CN100593493C (en) | 2008-11-25 | 2008-11-25 | Motorcycle frame with bent beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100593493C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101879926A (en) * | 2010-06-25 | 2010-11-10 | 江苏宗申三轮摩托车制造有限公司 | Camber beam-type right three-wheeled motorcycle |
-
2008
- 2008-11-25 CN CN200810233115A patent/CN100593493C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101879926A (en) * | 2010-06-25 | 2010-11-10 | 江苏宗申三轮摩托车制造有限公司 | Camber beam-type right three-wheeled motorcycle |
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| Publication number | Publication date |
|---|---|
| CN100593493C (en) | 2010-03-10 |
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Granted publication date: 20100310 Termination date: 20151125 |