CN111994193B - Reinforced frame of motorcycle - Google Patents
Reinforced frame of motorcycle Download PDFInfo
- Publication number
- CN111994193B CN111994193B CN202010891368.7A CN202010891368A CN111994193B CN 111994193 B CN111994193 B CN 111994193B CN 202010891368 A CN202010891368 A CN 202010891368A CN 111994193 B CN111994193 B CN 111994193B
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- frame
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- side plate
- fixed
- connecting part
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K11/00—Motorcycles, engine-assisted cycles or motor scooters with one or two wheels
- B62K11/02—Frames
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K11/00—Motorcycles, engine-assisted cycles or motor scooters with one or two wheels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Cycles, And Cycles In General (AREA)
Abstract
The invention discloses a reinforced frame of a motorcycle, which comprises a frame large plate and a frame beam assembly consisting of frame beams, wherein the frame large plate respectively forms connecting parts for fixing with the corresponding frame beams forwards and backwards, and the connecting parts wrap and fix the corresponding frame beams; according to the invention, the connecting part of the frame large plate and the corresponding frame beam is improved, so that the connecting part wraps the corresponding frame beam and then is welded, and the defects of microcracks generated at the stamping and receiving opening of the connecting part and strength reduction of the cross section are avoided, thus the overall strength of the frame is increased, the stability and the safety performance of the whole vehicle are ensured, the overall weight of the frame is not increased, the failure rate of the vehicle is reduced, and the use cost is reduced.
Description
Technical Field
The invention relates to a motorcycle component, in particular to a reinforced frame of a motorcycle.
Background
In the prior art, a motorcycle frame is a main bearing part of a motorcycle; the motorcycle frame with the general structure comprises a front structure, a middle structure and a rear structure, wherein the middle structure is a frame large plate and is a key structure for connecting the front structure and the rear structure, and the motorcycle frame plays an important role in the overall strength of the frame.
Structurally, the frame large plate is connected with the front portion of the frame forward and connected with the rear portion of the frame backward, and is responsible for supporting parts such as a bottom fork and a foot rest downward, so that the connection effect is achieved, and the overall strength requirement is high.
In the prior art, the whole frame large plate is regular, and the outer contour line is straight; the stress cannot be smoothly and effectively decomposed from the structural point of view; and the frame large plate and the frame beam need to be closed and penetrate into the frame beam to be fixed, and the end part of the connecting part is closed and then is connected and assembled with the corresponding beam body along the radial direction, so that the welding stress is concentrated and is superposed with the stress direction easily, and the integral strength of the frame is influenced.
Therefore, the structure of the large plate of the frame and the connection relation between the large plate and the beam body need to be improved, the structural improvement of the large plate can increase the connection strength between the large plate and the corresponding beam body, so that the overall strength of the frame is increased, the stability and the safety performance of the whole vehicle are ensured, the overall weight of the frame is not increased, the failure rate of the vehicle is reduced, and the use cost is reduced.
Disclosure of Invention
In view of this, the present invention provides a reinforced frame for a motorcycle, wherein the structural improvement of the large plate can increase the connection strength between the large plate and the corresponding beam body, so as to increase the overall strength of the frame, ensure the stability and safety performance of the whole motorcycle, and reduce the failure rate of the motorcycle without increasing the overall weight of the frame, thereby reducing the use cost.
The invention discloses a reinforced frame of a motorcycle, which comprises a frame large plate and a frame beam assembly consisting of frame beams, wherein the frame large plate respectively forms connecting parts for fixing with the corresponding frame beams forwards and backwards, and the connecting parts wrap and fix the corresponding frame beams; the structure of the frame large plate and the fixed position of the frame large plate and the frame beam belong to the existing structure, and are not described again; during the use, the frame macroplate is all fixed (generally for the welding) with the car frame roof beam that corresponds forward and backward, consequently, forward backward all forms connecting portion, this connecting portion are parallelly fixed with the car frame roof beam that corresponds, fixed mode is generally that the terminal surface department of connecting portion forms the welding with the car frame roof beam that corresponds, and prior art is fixed after penetrating the car frame roof beam that corresponds after closing up connecting portion wholly, easily produce the problem that the little crack and the little cross-section intensity of closing up the department are low, this structure is that connecting portion parcel is in car frame roof beam excircle, the defect that the little crack and the cross-section that have avoided connecting portion punching press (the macroplate generally adopts the punching press to take shape) to close up the production of department reduce intensity reduction.
Further, the frame large plate comprises an inner side plate and an outer side plate buckled with the inner side plate to form the frame large plate, the inner side plate and the outer side plate corresponding to the connecting parts are both provided with transverse openings, and the connecting parts are buckled with the inner side plate and the outer side plate to form the connecting parts wrapped by the corresponding frame beams; the connecting part can be understood as a complete structure wrapped on the corresponding frame beam, the cross section shape of the connecting part is matched with that of the frame beam, and because the inner side plate and the outer side plate of the structure adopt a transverse opening structure (which can be understood as a side opening of a cylindrical structure) and form wrapping (which can be understood as coaxial) and post-welding (the outer side plate and the inner side plate are buckled and welded, and the end part of the connecting part is welded with the corresponding frame beam) through the corresponding openings after the inner side plate and the outer side plate are buckled, the appearance is complete and the integral strength is improved in structure; the frame beam is generally a steel pipe structure, and the connecting portion is formed by fitting with the frame beam to form a package and then welded, which is not described herein again.
Further, a bottom fork transverse pipe mounting bushing and a foot rest mounting bushing are fixedly arranged on the frame large plate, and the bottom fork transverse pipe mounting bushing and the foot rest mounting bushing form stiffening fixation through a fixed connection structure; the bottom fork transverse tube mounting bush and the foot rest mounting bush are both lever structures extending transversely (transversely of the frame), bear certain load when in use, and are integrally in a cantilever beam state, so that the stress state is poor; in the structure, the stiffening fixation is formed between the fixed connection structure and the frame, so that the mutual support is formed between the fixed connection structure and the frame, the lever arm of force of the cantilever beam is reduced, the moment is reduced, the stress is dispersed, and the stress on the frame large plate is also properly reduced; the fixed connection structure can adopt all mechanical structures which can form fixed connection, and can be a welded steel plate, a steel member and the like; of course, the fixed connection structure is required to occupy a predetermined fixed length in the axial direction of the bottom fork horizontal tube mounting bush and the leg rest mounting bush to reduce the arm of force of the cantilever beam.
Furthermore, the fixed connection structure is a channel steel structure plate, a bottom plate of the channel steel structure plate is fixed with the frame large plate, and two ends of two side plates of the channel steel structure plate are respectively fixed with the bottom fork transverse tube mounting bush and the foot rest mounting bush; the two ends of the two side plates of the channel steel structural plate are respectively fixed (generally welded) on a horizontal fork tube mounting bush and a foot rest mounting bush, the plate surface is approximately parallel to the axial direction, the two side plates are supported within the range of a fixed part, meanwhile, the bottom plate and the frame large plate are related, the strength of the large plate is integrally improved, further strengthening and fixing are formed among the three side plates, and the three side plates form mutual supporting coordination on the original fixed basis when stressed, so that the respective integral load capacity is improved; this structure combines the parcel structure of connecting portion, improves big board itself and the holistic whole load capacity of frame greatly to improve the stability and the security of vehicle.
Further, a plurality of reinforcing structures are formed on the frame large plate, and the reinforcing structures are formed by local convex or concave deformation on the frame large plate; these local convex or concave deformations are formed by general machining, which is equivalent to the formation of stiffening ribs, thus increasing the bending moment resistance of the large frame plate and thus improving the overall strength.
Furthermore, the whole frame large plate is of a Y-shaped plate structure, and the upper front branch of the Y-shaped plate structure forms smooth transition from a forward lower contour line and an upper rear branch from a backward lower contour line to an inward concave arc line; the upper front branch and the upper rear branch are gradually widened towards the middle part of the large frame plate, the connecting part fixed with the corresponding frame beam is transited to the lower branch of the large frame plate through the arc line, and the lower part bears load parts such as a bottom fork, a foot rest and the like of a vehicle, so that when a load is transmitted through the arc transition profile, the load force decomposition is relatively regular, the force transmitted by the main foot rest, the bottom fork, an engine, shock absorption and the like can be effectively decomposed, and the overall structure appearance has better appearance.
Further, the bottom fork transverse pipe mounting bush and the foot rest mounting bush are approximately perpendicular to the frame large plate and are loaded between the inner side plate and the outer side plate, the channel steel structural plate is located in a space between the inner side plate and the outer side plate, two ends of two side plates of the channel steel structural plate are respectively fixed to the bottom fork transverse pipe mounting bush and the foot rest mounting bush, and a bottom plate of the channel steel structural plate is fixed to the outer side plate; as shown in the figure, the vertical surfaces of two side plates of the channel steel structural plate are parallel to the generatrices of the bottom fork transverse tube mounting bush and the foot rest mounting bush, so that the side plates occupy a set range in the axial direction, the whole cantilever beam is shortened, and the bearing capacity is improved; as shown in the figure, two curb plates both ends weld respectively in the bottom fork violently manage installation bush and bracket installation bush surface, because the bottom fork violently manages installation bush and bracket installation bush diameter difference for two curb plates of channel-section steel structural slab are not parallel, and the width between the two is violently managed installation bush by the bottom fork and is narrowed to bracket installation bush gradually, no longer gives details here.
Furthermore, the terminal surface of connecting portion is the inclined plane, behind the connecting portion parcel in the car frame roof beam that corresponds the terminal surface skew of connecting portion in the radial cross-section of the car frame roof beam that corresponds makes welding stress no longer along tubular product radial distribution, avoids welding stress and atress direction coincidence, improves frame intensity by a wide margin.
Further, the frame beam assembly comprises a left front main beam, a right front main beam, a left rear main beam and a right rear main beam; of course, only the frame components (corresponding to your frame beam) fixedly connected with the frame large plate are listed here, and the frame further comprises a head pipe, a vertical beam, and other front main beams and rear main beams jointly borne by the main beams, which are related to the overall design of the frame and are not described herein again;
the two frame large plates are respectively a left frame large plate and a right frame large plate, the forward connecting part of the left frame large plate is wrapped on the left front main beam and fixed, and the forward connecting part of the right frame large plate is wrapped on the right front main beam and fixed;
the backward connecting part of the left frame main plate is wrapped on the left rear main beam and fixed, and the backward connecting part of the right frame main plate is wrapped on the right rear main beam and fixed.
The invention has the beneficial effects that: according to the reinforced frame of the motorcycle, the connecting part of the frame large plate and the corresponding frame beam is improved, so that the connecting part wraps the corresponding frame beam and then is welded, the defects of microcracks generated at the stamping and receiving opening of the connecting part and strength reduction of the cross section are avoided, the overall strength of the frame is increased, the stability and the safety performance of the whole motorcycle are ensured, the overall weight of the frame is not increased, the failure rate of the motorcycle is reduced, and the use cost is reduced.
Drawings
The invention is further described below with reference to the figures and examples.
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a rear view of the structure of the present invention;
FIG. 3 is a sectional view taken along line A-A of FIG. 2;
fig. 4 is a frame structure view of the present invention.
Detailed Description
Fig. 1 is a front view of the structure of the present invention, fig. 2 is a rear view of the structure of the present invention, fig. 3 is a sectional view in the direction of fig. 2A-a, fig. 4 is a structural view of a vehicle frame of the present invention, as shown in the drawings: the reinforced motorcycle frame comprises a frame large plate 1 and a frame beam assembly consisting of frame beams, wherein the frame large plate 1 is forwards and backwards respectively provided with connecting parts 101 and 102 for fixing with the corresponding frame beams, and the connecting parts 101 and 102 are used for wrapping and fixing the corresponding frame beams; the structure of the frame large plate 1 and the fixing structure mode and position with the frame beam belong to the existing structure, and are not described again; the frame slabstone is forward and all fixes with the car frame roof beam that corresponds backward (generally for the welding), consequently, all form connecting portion forward backward, this connecting portion are parallelly fixed with the car frame roof beam that corresponds, fixed mode is generally that the terminal surface department of connecting portion forms the welding with the car frame roof beam that corresponds, and prior art is fixed after penetrating the car frame roof beam that corresponds after closing up connecting portion wholly, easily produce the problem that the little crack and the little cross-section intensity of closing up the department are low, this structure is that connecting portion wrap up in car frame roof beam excircle, the defect that the little crack and the cross-section that have avoided the production of connecting portion punching press (slabstone generally adopts the punching press to take shape) to close up the department reduce intensity reduction in the crack.
In this embodiment, the frame large plate 1 includes an inner side plate 11 and an outer side plate 12 fastened with the inner side plate 11 to form the frame large plate, the positions of the inner side plate 11 and the outer side plate 12 corresponding to the connecting portions are both horizontal openings, and the positions form the connecting portions 101 and 102 wrapping the corresponding frame beams after the inner side plate 11 is fastened with the outer side plate 12; the connecting part can be understood as a complete structure wrapped on the corresponding frame beam, the cross section shape of the connecting part is matched with that of the frame beam, and because the inner side plate and the outer side plate of the structure adopt a transverse opening structure (which can be understood as a side opening of a cylindrical structure) and form wrapping (which can be understood as coaxial) and post-welding (the outer side plate and the inner side plate are buckled and welded, and the end part of the connecting part is welded with the corresponding frame beam) through the corresponding openings after the inner side plate and the outer side plate are buckled, the appearance is complete and the integral strength is improved in structure; the frame beam is generally a steel pipe structure, and the connecting portion is welded after being wrapped by the connecting portion, which is not described herein again.
In this embodiment, the frame main plate 1 is fixedly provided with a bottom fork horizontal tube mounting bush 106 and a leg rest mounting bush 107, and the bottom fork horizontal tube mounting bush 106 and the leg rest mounting bush 107 form a stiffening fixation through a fixed connection structure; the bottom fork horizontal tube mounting bush 106 and the foot rest mounting bush 107 are both lever structures extending transversely (transversely of the frame), bear certain load when in use, and are integrally in a cantilever beam state, so that the stress state is not good; in the structure, the stiffening fixation is formed between the fixed connection structure and the frame, so that the mutual support is formed between the fixed connection structure and the frame, the lever arm of force of the cantilever beam is reduced, the moment is reduced, the stress is dispersed, and the stress on the frame large plate is also properly reduced; the fixed connection structure can adopt all mechanical structures which can form fixed connection, and can be a welded steel plate, a steel member and the like; of course, the fixed connection structure is required to occupy a predetermined fixed length in the axial direction of the bottom fork horizontal tube mounting bush and the leg rest mounting bush to reduce the arm of force of the cantilever beam.
In this embodiment, the fixed connection structure is a channel steel structural plate, and a bottom plate 108 of the channel steel structural plate is fixed to the frame large plate 1, and is generally welded and fixed; two ends of two side plates 109 of the channel steel structural plate are respectively fixed with a bottom fork horizontal tube mounting bush 106 and a leg rest mounting bush 107; two ends of two side plates 109 of the channel steel structural plate are respectively fixed (generally welded) on a horizontal cross tube mounting bush 106 and a foot rest mounting bush 107, the plate surface is approximately parallel to the axial direction, the two are supported in the range of a fixed position, meanwhile, the bottom plate and the frame large plate are associated, the strength of the large plate is integrally improved, further strengthening and fixing are formed among the three, and the three form mutual supporting coordination on the basis of original fixing when stressed, so that the respective integral load capacity is improved; this structure combines the parcel structure of connecting portion, improves big board itself and the holistic whole load capacity of frame greatly to improve the stability and the security of vehicle.
In this embodiment, a plurality of reinforcing structures 105 are formed on the frame large plate 1, and the reinforcing structures 105 are formed by deformation of local protrusions or recesses on the frame large plate 1; the local convex or concave deformation can be formed by general machining, and the structure is equivalent to a stiffening rib, so that the bending moment resistance of the large frame plate is increased, and the integral strength is improved; as shown in the figure, the inner side plate and the outer side plate of the large frame plate are both provided with local bulges or sunken deformations, so that the local bulges or the sunken deformations of the outer side plate can be more than the inner side plate to ensure the bending moment resistance of the whole structure and the external impact, and a better using effect is achieved.
In this embodiment, the whole frame large plate 1 is a Y-shaped plate structure, the upper front branch of the Y-shaped plate structure forms a smooth transition from a forward lower contour line to an inward curved line from a backward lower contour line to an upward rear branch, as shown in the figure, the upper front branch forms a connecting portion 101, and the upper front branch forms a connecting portion 102, and the upper rear branch forms a downward transition from the forward lower contour line to the inward curved line through a forward curved line 103, and the upper rear branch forms a connecting portion 102, and the rearward lower contour line passes a rear curved line 104; as shown in the figure, the upper front branch and the upper rear branch are gradually widened towards the middle part of the frame large plate, the connecting part fixed with the corresponding frame beam is transited to the lower branch of the frame large plate through the arc line, and the lower part bears load parts such as a vehicle bottom fork, a footrest and the like, so that when a load is transmitted through the profile of the arc transition, relatively regular load force decomposition is realized, the force transmitted by each aspect of a main footrest, a bottom fork, an engine, shock absorption and the like can be effectively decomposed, and the overall structure appearance has better appearance.
In this embodiment, the bottom fork transverse tube mounting bushing 106 and the leg rest mounting bushing 107 are approximately perpendicular to the frame large plate 1 and are loaded between the inner side plate 11 and the outer side plate 12, the channel steel structural plate is located in a space between the inner side plate 11 and the outer side plate 12, two ends of two side plates 109 of the channel steel structural plate are respectively fixed to the bottom fork transverse tube mounting bushing 106 and the leg rest mounting bushing 107, a bottom plate 108 of the channel steel structural plate is fixed to the outer side plate 12, the fixing manner is generally welding, and details are not described herein; as shown in the figure, the vertical surface of the side plate is parallel to the generatrix of the horizontal fork tube mounting bush and the leg rest mounting bush, so that the side plate occupies a set range in the axial direction, the whole cantilever beam is shortened, and the bearing capacity is improved; as shown in the figure, two curb plates both ends weld respectively in the bottom fork violently manage installation bush and bracket installation bush surface, because the bottom fork violently manages installation bush and bracket installation bush diameter difference for two curb plates of channel-section steel structural slab are not parallel, and the width between the two is violently managed installation bush by the bottom fork and is narrowed to bracket installation bush gradually, no longer gives details here.
In this embodiment, the end surfaces of the connecting portions 101 and 102 are inclined surfaces, and the end surfaces of the connecting portions 101 and 102 are deviated from the radial cross sections of the corresponding frame beams after the corresponding frame beams are wrapped by the connecting portions 101 and 102, so that welding stress is not distributed along the radial direction of the pipe, the superposition of the welding stress and the stress direction is avoided, and the strength of the frame is greatly improved.
In this embodiment, the motorcycle frame includes a left front main beam 2, a right front main beam 2a, a left rear main beam 3, and a right rear main beam 3 a; of course, only frame components (i.e., corresponding frame beams) fixedly connected with the frame large plate are listed here, and the frame further includes a head pipe, a vertical beam, and other front main beams and rear main beams jointly carried by the main beams, which are related to the overall design of the frame and are not described herein again;
the two frame large plates are respectively a left frame large plate 1 and a right frame large plate 1a, the forward connecting part of the left frame large plate 1 is wrapped on the left front main beam 2 and fixed, and the forward connecting part of the right frame large plate 1a is wrapped on the right front main beam 2a and fixed;
the backward connecting part of the left frame large plate 1 is wrapped on and fixed with the left rear main beam 3, and the backward connecting part of the right frame large plate 1a is wrapped on and fixed with the right rear main beam 3 a;
as shown in the figure, the whole structure of the frame is complete and the strength is high.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (5)
1. A motorcycle strenghthened type frame which characterized in that: the large frame plate is forwards and backwards respectively formed with a connecting part for fixing with the corresponding frame beam, and the connecting part wraps and fixes the corresponding frame beam; the large frame plate comprises an inner side plate and an outer side plate buckled with the inner side plate to form the large frame plate, the parts of the inner side plate and the outer side plate corresponding to the connecting parts are both horizontal openings, and the parts form the connecting parts wrapped by the corresponding frame beams after the inner side plate and the outer side plate are buckled; a bottom fork transverse pipe mounting bush and a foot rest mounting bush are fixedly arranged on the frame large plate, and stiffening fixation is formed between the bottom fork transverse pipe mounting bush and the foot rest mounting bush through a fixed connecting structure;
the fixed connecting structure is a channel steel structural plate, a bottom plate of the channel steel structural plate is fixed with the frame large plate, and two ends of two side plates of the channel steel structural plate are respectively fixed with a bottom fork transverse tube mounting bushing and a foot rest mounting bushing;
the bottom fork transverse pipe mounting bushing and the foot rest mounting bushing are approximately perpendicular to a frame large plate and are loaded between the inner side plate and the outer side plate, the channel steel structural plate is located in a space between the inner side plate and the outer side plate, two ends of two side plates of the channel steel structural plate are respectively fixed on the bottom fork transverse pipe mounting bushing and the foot rest mounting bushing, and a bottom plate of the channel steel structural plate is fixed on the outer side plate.
2. A reinforced motorcycle frame as claimed in claim 1, wherein: a plurality of reinforcing structures are formed on the frame large plate, and the reinforcing structures are formed by local convex or concave deformation on the frame large plate.
3. The reinforced motorcycle frame of claim 1, wherein: the whole frame large plate is of a Y-shaped plate structure, and the upper front branch of the Y-shaped plate structure forms smooth transition from the forward lower contour line to the backward lower contour line through the forward lower contour line and the upper rear branch of the Y-shaped plate structure.
4. A reinforced motorcycle frame as claimed in claim 1, wherein: the end face of the connecting part is an inclined face, and the end face of the connecting part is deviated from the radial section of the corresponding frame beam after the connecting part is wrapped on the corresponding frame beam.
5. A reinforced motorcycle frame as claimed in claim 4, wherein: the frame beam assembly comprises a left front main beam, a right front main beam, a left rear main beam and a right rear main beam; the two frame large plates are respectively a left frame large plate and a right frame large plate, the forward connecting part of the left frame large plate is wrapped on the left front main beam and fixed, and the forward connecting part of the right frame large plate is wrapped on the right front main beam and fixed;
the backward connecting part of the left frame main plate is wrapped on the left rear main beam and fixed, and the backward connecting part of the right frame main plate is wrapped on the right rear main beam and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010891368.7A CN111994193B (en) | 2020-08-30 | 2020-08-30 | Reinforced frame of motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010891368.7A CN111994193B (en) | 2020-08-30 | 2020-08-30 | Reinforced frame of motorcycle |
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| Publication Number | Publication Date |
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| CN111994193A CN111994193A (en) | 2020-11-27 |
| CN111994193B true CN111994193B (en) | 2022-05-17 |
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| CN202010891368.7A Active CN111994193B (en) | 2020-08-30 | 2020-08-30 | Reinforced frame of motorcycle |
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| CN (1) | CN111994193B (en) |
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| CN111994193A (en) | 2020-11-27 |
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