CN110254589B - Motorcycle with high stability and controllability - Google Patents
Motorcycle with high stability and controllability Download PDFInfo
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- CN110254589B CN110254589B CN201910582256.0A CN201910582256A CN110254589B CN 110254589 B CN110254589 B CN 110254589B CN 201910582256 A CN201910582256 A CN 201910582256A CN 110254589 B CN110254589 B CN 110254589B
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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
- B62K21/00—Steering devices
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Abstract
The invention discloses a motorcycle with high stability and controllability, which comprises a frame, an engine, a front wheel and a rear wheel, wherein the front wheel is connected to a steering system of the motorcycle through a front fork assembly; the front fork assembly is provided with a front fork central line, an included angle is formed between the front fork central line and a vertical line, the included angle is a front extension angle, and the front extension angle is 23-32 degrees; the invention is provided with a proper forward extending angle, combines the gravity center setting of the whole vehicle and the setting of other structural parameters, leads the steering to be smooth, properly controls the wheelbase and effectively avoids the technical problems caused by over-small and over-large forward extending angles; in the running process of the vehicle, the additional torque is reduced, so that the energy consumption can be effectively reduced; the invention reasonably configures the structural installation parameters such as the gravity center and the like, improves the stability of the vehicle body, and improves the stability and the controllability in the control process such as turning and the like, thereby improving the driving safety and having good influence on energy conservation and consumption reduction.
Description
Technical Field
The invention relates to the field of motor vehicles, in particular to a motorcycle capable of improving driving stability.
Background
The motorcycle is a light motor vehicle, which is light, flexible and fast to run, and may be used in patrol, walking and sports equipment.
Because the two-wheeled motorcycle adopts two-wheeled structure, the principle of traveling is similar to the bicycle, and the balance stability of whole car has key influence to the travelling comfort and the security of riding. For example, the driving experience is affected by different gravity center positions of the motorcycles, the gravity center is close to the front, the operation is heavy, and the steering is not flexible; the tail is easy to swing when the gravity center is back; the center of gravity is too low, and the steering and riding operation are heavy; if the center of gravity is too high, the whole vehicle is unstable and easy to roll. Besides the center of gravity, other structures such as frame wheels have influence on stability, comfort and maneuverability, namely the influence of the motorcycle is a comprehensive index.
In the prior art, the motorcycle generally does not optimize the structure influencing the control stability, and the technical problem of poor control stability exists.
Therefore, structural parameters of the motorcycle need to be optimized, structural installation parameters such as the center of gravity and the like are reasonably configured, the stability of the motorcycle body is improved, and the stability and the controllability in the steering and other control processes are improved, so that the driving safety is improved, and good influence is brought to energy conservation and consumption reduction.
Disclosure of Invention
In view of this, the present invention provides a motorcycle with high stability and controllability, which reasonably configures structural installation parameters such as the center of gravity, etc., improves the stability of the motorcycle body, and improves the stability and controllability in the control process such as turning, etc., thereby improving the driving safety and having good influence on energy saving and consumption reduction.
The invention discloses a high-stability control motorcycle, which comprises a frame, an engine, a front wheel and a rear wheel, wherein the front wheel is connected with a steering system of the motorcycle through a front fork assembly; the motorcycle steering system comprises a steering handle, a head vertical pipe and a direction seat, wherein the steering handle and a front fork assembly are connected to the direction seat, and the direction seat can rotate around the head vertical pipe and drive the front fork assembly to drive a front wheel to steer under the driving of the direction handle, so that the motorcycle steering system belongs to the prior art and is not described again; the front fork assembly generally comprises a front fork and a front shock absorber, which are not described herein again, the front fork comprises front fork leg tubes located at two sides of a front wheel of the vehicle, the front fork leg tubes are generally used for connecting a wheel axle of the front wheel of the vehicle, and belong to the prior art, which are not described herein again;
the front fork assembly is provided with a front fork central line, an included angle is formed between the front fork central line and a vertical line, the included angle is a front extension angle, and the front extension angle is 23-32 degrees, preferably 25 degrees; when in use, the motorcycle is generally selected to be 23-26 degrees, preferably 25 degrees according to different motorcycle types, such as street running motorcycles; the street motorcycle is generally 25-32 degrees, preferably 27 degrees; when the motorcycle is actually used, the distance between the axles of the whole motorcycle is short due to the fact that the front stretching angle is too small, the whole motorcycle is flexible and labor-saving to operate, but series problems can occur due to too flexible operation, the front part sinks too fast in the snake-shaped driving operation process, the steering amplitude is not easy to control, too much steering is caused, and if the motorcycle is used for the existing motorcycle with the gravity center not optimized, the motorcycle is very easy to topple, so that safety accidents occur; if the forward extending angle is too large, the steering is heavy and jammed, the steering is not enough, and the safety accident is still difficult to avoid; the front stretching angle of the structure is set by combining the gravity center of the whole vehicle and the distance between the front wheel shaft and the rear wheel shaft and the gravity center, so that the steering is smooth, the wheelbase is properly controlled, and the technical problem caused by over-small and over-large front stretching angles is effectively avoided.
Furthermore, the mounting position of the engine is close to the horizontal fork shaft of the motorcycle, the gravity center of the engine is close to the horizontal fork shaft as much as possible, the front-back proportion and the up-down proportion of the weight of the whole motorcycle are reasonably distributed, the stability in the control process of turning and the like is ensured, the control is ensured to be smooth, and the problems of tail flicking, side tilting and the like are avoided.
Furthermore, the distance from the gravity center position of the motorcycle to the axis of the front wheel axle accounts for 50-52 percent, preferably 51 percent, of the total wheel axle distance, and the distance from the gravity center position of the motorcycle to the axis of the rear wheel axle accounts for 48-50 percent, preferably 49 percent, of the total wheel axle distance; the gravity center position is set in combination with the engine mounting position, so that the problem of uneven front-back distribution of the gravity center in the running process of the vehicle is avoided, particularly, the gravity center can slightly move backwards in the riding process, and the riding stability of the whole vehicle is relatively improved.
Furthermore, the gravity center of the engine is superposed with the integral gravity center of the motorcycle, so that the excessive moment of deflection can be avoided as much as possible in the driving process of the motorcycle, and the influence of the vehicle by the deflection moment (additional moment) is avoided; meanwhile, the engine is a part with concentrated weight on the motorcycle and is superposed with the gravity center of the motorcycle, so that the generation of deflection torque is further avoided, and the driving safety is ensured; in the driving process of the vehicle, due to the fact that the additional torque is reduced, the problems of difficult control and the like caused by curve turning can be effectively solved, and energy consumption can be effectively reduced.
Furthermore, a head riser is arranged at the front end of the frame, the central axis (steering central axis) of the head riser is parallel to the central axis of the front fork and has a distance, the distance is offset distance, the central axis of the front fork is forward relative to the central axis of the head riser, and the offset distance is 20-32mm, preferably 29 mm; in actual use, the motorcycle model can be different according to different motorcycle models, for example, the cross country motorcycle is generally 20-28mm, preferably 25 mm; street motorcycles are typically 26-32mm, preferably 29 mm; similar to the technical problem caused by the front stretching angle, the offset distance is too small, so that the distance between the whole vehicle and the axle is short, the operation is flexible and labor-saving, but a series of problems can occur due to the too flexible operation, the front part sinks too fast in the snake-shaped driving operation process, the steering amplitude is not easy to control, too much steering is caused, and if the motorcycle with the unoptimized center of gravity is used, the motorcycle is easy to topple, so that safety accidents occur; if the offset distance is too large, the steering is heavy and jammed, the steering is insufficient, and the like, and safety accidents are still difficult to avoid; the offset of this structure combines aforementioned forward extension angle, whole car focus to set up and the distance between front and back shaft and the focus to set for turn to smoothly, and proper control wheel base has effectively avoided the technical problem that the forward extension angle undersize and too big leads to.
Further, the horizontal distance between the central axis of the head riser and the grounding point of the front wheel is 92-129mm, and the horizontal distance can be different according to different vehicle types when in use, for example, the street motorcycle is generally 104-129mm, and is preferably 115; street running motorcycles are generally 92-110mm, preferably 105;
the distance has an important influence on the steering stability, and the appropriate horizontal distance can be combined with an appropriate forward extending angle and an appropriate offset distance to achieve smoother steering without causing over-flexible steering, so that the appropriate stability is ensured; simultaneously, suitable this horizontal distance still does benefit to the intensity of guaranteeing that the front fork supports in the front wheel, does benefit to the holistic lightweight of assurance vehicle.
The street vehicle is mainly suitable for replacing walking in cities, the rear seat of the vehicle can be manned, and the street vehicle belongs to a motorcycle and is not described again; the street running motorcycle is also one of motorcycles, the transmission shaft motorcycle has large force, but is not suitable for high speed, and the structural design is different from that of a street vehicle; the dirtbike is a kind of motorcycle, and will not be described herein.
Further, the motorcycle has a front wheel damper and a rear wheel damper;
the front wheel shock absorber is compressed by 20-30mm, preferably 25mm, under the condition of a whole vehicle, is compressed by 30-45mm under the condition of adult riding load, and is preferably 40mm for 65 kg adults;
the rear wheel shock absorber is compressed by 5-15mm, preferably 12 mm, under the condition of a whole vehicle, and is compressed by 20-30mm, preferably 25mm, under the condition of riding load of an adult, and 65 kg of the rear wheel shock absorber is compressed by 25 mm;
on the premise of ensuring the control stability of the motorcycle in the driving and turning processes of the motorcycle by the structural parameters, the driving comfort of the shock absorber is ensured and the height of the center of gravity can be adjusted in the driving process.
Further, the adult weighs 60-70 kg.
The invention has the beneficial effects that: according to the motorcycle, the proper forward extending angle is configured, the gravity center setting of the whole motorcycle and the setting of other structural parameters are combined, so that the steering is smooth, the wheelbase is properly controlled, and the technical problems caused by over-small and over-large forward extending angles are effectively avoided; in the running process of the vehicle, the additional torque is reduced, so that the energy consumption can be effectively reduced; the invention reasonably configures the structural installation parameters such as the gravity center and the like, improves the stability of the vehicle body, and improves the stability and the controllability in the control process such as turning and the like, thereby improving the driving safety and having good influence on energy conservation and consumption reduction.
Drawings
The invention is further described below with reference to the following figures and examples:
FIG. 1 is a schematic view of the structural principle of the present invention;
FIG. 2 is a schematic view of a motorcycle of the present invention;
fig. 3 is a top view of fig. 2.
Detailed Description
Fig. 1 is a schematic view of the structural principle of the present invention, fig. 2 is a schematic view of a whole motorcycle of the present invention, and fig. 3 is a top view of fig. 2. as shown in the drawings, the motorcycle with high stability maneuverability of the present invention comprises a frame 1, an engine 2, a front wheel 3 and a rear wheel 4, wherein the front wheel 3 is connected to a steering system of the motorcycle through a front fork assembly 7; the motorcycle steering system comprises a steering handle 6, a head vertical pipe 5 and a direction seat 8, wherein the steering handle 6 and a front fork assembly 7 are connected to the direction seat, and the direction seat can rotate around the head vertical pipe and drive the front fork assembly to drive a front wheel of the motorcycle to steer under the driving of the direction handle; the front fork assembly generally comprises a front fork and a front shock absorber, which are not described herein again, the front fork comprises front fork leg tubes located at two sides of a front wheel of the vehicle, the front fork leg tubes are generally used for connecting a wheel axle of the front wheel of the vehicle, and belong to the prior art, which are not described herein again;
the front fork assembly 7 is provided with a front fork central line, an included angle is formed between the front fork central line b and a vertical line, the included angle is a front extension angle beta, and the front extension angle beta is 23-32 degrees, preferably 25 degrees; when in use, the motorcycle is generally selected to be 23-26 degrees, preferably 25 degrees according to different motorcycle types, such as street running motorcycles; the street motorcycle is generally 25-32 degrees, preferably 27 degrees; when the motorcycle is actually used, the distance between the axles of the whole motorcycle is short due to the fact that the front stretching angle is too small, the whole motorcycle is flexible and labor-saving to operate, but series problems can occur due to too flexible operation, the front part sinks too fast in the snake-shaped driving operation process, the steering amplitude is not easy to control, too much steering is caused, and if the motorcycle is used for the existing motorcycle with the gravity center not optimized, the motorcycle is very easy to topple, so that safety accidents occur; if the forward extending angle is too large, the steering is heavy and jammed, the steering is not enough, and the safety accident is still difficult to avoid; the front stretching angle of the structure is set by combining the gravity center of the whole vehicle and the distance between the front wheel shaft and the rear wheel shaft and the gravity center, so that the steering is smooth, the wheelbase is properly controlled, and the technical problem caused by over-small and over-large front stretching angles is effectively avoided.
In the embodiment, the mounting position of the engine is close to the bottom fork shaft of the motorcycle, the gravity center of the engine is close to the bottom fork shaft as much as possible, the front-back proportion and the up-down proportion of the weight of the whole motorcycle are reasonably distributed, the stability of the steering and other control processes is guaranteed by combining the position relation of the engine and the vertical line, the control is guaranteed to be smooth, and the problems of tail flicking, side tilting and the like are avoided.
In the embodiment, the distance from the gravity center position of the motorcycle to the axis of the front wheel axle accounts for 50-52%, preferably 51% of the whole vehicle wheel base f, and the distance from the gravity center position of the motorcycle to the axis of the rear wheel axle accounts for 48-50%, preferably 49% of the whole vehicle wheel base f; the gravity center position is set in combination with the engine mounting position, so that the problem of uneven front-back distribution of the gravity center in the running process of the vehicle is avoided, particularly, the gravity center can slightly move backwards in the riding process, and the riding stability of the whole vehicle is relatively improved.
In this embodiment, a head riser is arranged at the front end of the frame, a central axis c (steering central axis) of the head riser is parallel to the central axis b of the front fork and has a distance, the distance is an offset distance, the central axis of the front fork is forward relative to the central axis of the head riser, and the offset distance is 20-32mm, preferably 29 mm; in actual use, the motorcycle model can be different according to different motorcycle models, for example, the cross country motorcycle is generally 20-28mm, preferably 25 mm; street motorcycles are typically 26-32mm, preferably 29 mm; similar to the technical problem caused by the front stretching angle, the offset distance is too small, so that the distance between the whole vehicle and the axle is short, the operation is flexible and labor-saving, but a series of problems can occur due to the too flexible operation, the front part sinks too fast in the snake-shaped driving operation process, the steering amplitude is not easy to control, too much steering is caused, and if the motorcycle with the unoptimized center of gravity is used, the motorcycle is easy to topple, so that safety accidents occur; if the offset distance is too large, the steering is heavy and jammed, the steering is insufficient, and the like, and safety accidents are still difficult to avoid; the offset of this structure combines aforementioned forward extension angle, whole car focus to set up and the distance between front and back shaft and the focus to set for turn to smoothly, and proper control wheel base has effectively avoided the technical problem that the forward extension angle undersize and too big leads to.
In this embodiment, the horizontal distance e between the central axis of the head tube and the grounding point of the front wheel is 92-129mm, and the horizontal distance e is different according to different vehicle types when in use, for example, the street motorcycle is generally 104-129mm, preferably 115; street running motorcycles are generally 92-110mm, preferably 105;
the distance e has an important influence on the steering stability, and the appropriate horizontal distance can be combined with an appropriate forward extending angle and an appropriate offset distance to achieve smoother steering without causing over-flexible steering, so that the appropriate stability is ensured; simultaneously, suitable this horizontal distance still does benefit to the intensity of guaranteeing that the front fork supports in the front wheel, does benefit to the holistic lightweight of assurance vehicle.
The street vehicle is mainly suitable for replacing walking in cities, the rear seat of the vehicle can be manned, and the street vehicle belongs to a motorcycle and is not described again; the street running motorcycle is also one of motorcycles, the transmission shaft motorcycle has large force, but is not suitable for high speed, and the structural design is different from that of a street vehicle; the dirtbike is a kind of motorcycle, and will not be described herein.
In this embodiment, the motorcycle has a front wheel damper and a rear wheel damper;
the front wheel shock absorber is compressed by 20-30mm, preferably 25mm, under the condition of a whole vehicle, is compressed by 30-45mm under the condition of adult riding load, and is preferably 40mm for 65 kg adults;
the rear wheel shock absorber is compressed by 5-15mm, preferably 12 mm, under the condition of a whole vehicle, and is compressed by 20-30mm, preferably 25mm, under the condition of riding load of an adult, and 65 kg of the rear wheel shock absorber is compressed by 25 mm;
on the premise of ensuring the control stability of the motorcycle in the driving and turning processes of the motorcycle by the structural parameters, the driving comfort of the shock absorber is ensured and the height of the center of gravity can be adjusted in the driving process.
In this example, the adult weighs 60-70 kg, typically 65 kg.
In the embodiment, the gravity center of the engine is superposed with the integral gravity center of the motorcycle, the gravity center is positioned between two wheels of the motorcycle and is set to be at a proper front position, a proper rear position and a proper up-down position, the use structure is stable, no deflection moment (additional moment) is generated, and the problems of difficult control and the like caused by turning at a curve can be effectively solved by combining the structural design of the front stretching angle and the like.
The grounding point of the front wheel and the grounding point of the rear wheel of the vehicle refer to the central point of the part of the wheel contacted with the ground, and the description is omitted.
When the engine is used, the grounding point of the rear wheel of the passing vehicle is a vertical line vertical to the central line of the front fork, and the central point of the crankshaft of the engine is positioned at the vertical line or near the vertical line; the central line of the front fork refers to a longitudinal central line between the two leg pipes, the direction of the central line is along the installation direction of the front fork (from a direction seat to a front wheel axle), the condition that the front fork is righted (a direction handle is righted) exists in the vertical line, the gravity center of the engine is generally superposed with the central point of a crankshaft as much as possible during manufacturing, and the manufacturing and installation of the whole engine are standardized; at this time, the center line of the front fork is positioned on a vertical surface of the longitudinal center of the motorcycle, as shown in fig. 3, the vertical surface of the longitudinal center of the motorcycle is a vertical surface expressed by a dotted line g, no special description is provided, and all lines recorded in the invention are in the vertical surface;
in the structure, a vertical line a from a grounding point of a rear wheel of the motorcycle to a central line b of a front fork is positioned on a longitudinal central plane of the motorcycle, the gravity center of an engine is positioned at or near the vertical line, and by combining the setting of structural parameters such as a front stretching angle, a bias distance and the like, the excessive moment of deflection can be avoided as much as possible in the driving process of the motorcycle, so that the influence of the vehicle by the deflection moment (additional moment) is avoided; meanwhile, because the engine is a component with concentrated weight on the motorcycle, the structure can effectively adjust the gravity center position of the whole motorcycle and is basically positioned on the vertical line or near the vertical line, thereby further avoiding the generation of deflection moment and ensuring the driving safety; in the running process of the vehicle, the additional moment is reduced, so that the energy consumption can be effectively reduced. As shown in the figure, the crankshaft center point P of the engine is positioned on the vertical line a, so that the engine is integrally installed in a left-right balanced manner, and a large additional moment is avoided in the driving and turning processes.
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 (4)
1. A motorcycle with high stability and controllability is characterized in that: the motorcycle front wheel is connected with a motorcycle steering system through a front fork assembly;
the front fork assembly is provided with a front fork central line, an included angle is formed between the front fork central line and a vertical line, the included angle is a front extension angle, and the front extension angle is 23-32 degrees;
the mounting position of the engine is close to a horizontal fork shaft of the motorcycle;
the gravity center of the engine is superposed with the integral gravity center of the motorcycle; the distance between the gravity center position of the motorcycle and the axis of the front wheel axle accounts for 50-52% of the total wheel base, and the distance between the gravity center position of the motorcycle and the axis of the rear wheel axle accounts for 48-50% of the total wheel base.
2. The highly stable manipulative motorcycle according to claim 1, wherein: the front end of the frame is provided with a head riser, the central axis of the head riser is parallel to the central axis of the front fork and has a distance, the distance is an offset distance, the central axis of the front fork is forward relative to the central axis of the head riser, and the offset distance is 20-32 mm.
3. The highly stable manipulative motorcycle according to claim 2, wherein: the horizontal distance between the central axis of the head riser and the grounding point of the front wheel is 92-129 mm.
4. The highly stable manipulative motorcycle according to claim 1 or 2, wherein: the motorcycle is provided with a front wheel shock absorber and a rear wheel shock absorber;
the front wheel shock absorber is compressed by 20-30mm under the condition of a whole vehicle, and is compressed by 30-45mm under the condition of adult riding load;
the rear wheel shock absorber is compressed by 5-15mm under the condition of the whole vehicle, and is compressed by 20-30mm under the condition of adult riding load.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910582256.0A CN110254589B (en) | 2019-06-30 | 2019-06-30 | Motorcycle with high stability and controllability |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910582256.0A CN110254589B (en) | 2019-06-30 | 2019-06-30 | Motorcycle with high stability and controllability |
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| Publication Number | Publication Date |
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| CN110254589A CN110254589A (en) | 2019-09-20 |
| CN110254589B true CN110254589B (en) | 2021-04-16 |
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| CN201910582256.0A Active CN110254589B (en) | 2019-06-30 | 2019-06-30 | Motorcycle with high stability and controllability |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2842491B1 (en) * | 2002-07-19 | 2004-08-27 | Jean Paul Lagar | DEVICE FOR FIXING THE FRONT AXLE TO THE CHASSIS OF A MOTORCYCLE WITH ADJUSTABLE ANGLE OF HUNTING AND GROUND HUNTING |
| DE102007001456A1 (en) * | 2007-01-03 | 2008-08-21 | Clean Mobile Gmbh | Two-wheeler e.g. bicycle, has front wheel with caster, which is more than forty five millimeter and less than ninety millimeter in deflected condition of fork, and frame with steering tube, which is inclined against horizontal around angle |
| JP5036330B2 (en) * | 2007-01-25 | 2012-09-26 | ヤマハ発動機株式会社 | Saddle riding vehicle |
| CN201276184Y (en) * | 2008-08-05 | 2009-07-22 | 刘光法 | Tricycle front fork form and fixing structure |
| CN108928419B (en) * | 2017-05-23 | 2020-06-16 | 睿能创意公司 | Vehicle with a steering wheel |
| CN208102225U (en) * | 2018-03-13 | 2018-11-16 | 刘怀禹 | Glove vehicle frame |
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