CN117508436A - Novel motorcycle front suspension and steering system thereof - Google Patents
Novel motorcycle front suspension and steering system thereof Download PDFInfo
- Publication number
- CN117508436A CN117508436A CN202311766011.6A CN202311766011A CN117508436A CN 117508436 A CN117508436 A CN 117508436A CN 202311766011 A CN202311766011 A CN 202311766011A CN 117508436 A CN117508436 A CN 117508436A
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- Prior art keywords
- steering
- motorcycle
- front wheel
- suspension
- rocker arm
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- 239000000725 suspension Substances 0.000 title claims abstract description 60
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 230000035939 shock Effects 0.000 claims abstract description 9
- 239000006096 absorbing agent Substances 0.000 claims abstract description 7
- 230000006835 compression Effects 0.000 claims abstract description 7
- 238000007906 compression Methods 0.000 claims abstract description 7
- 230000033001 locomotion Effects 0.000 claims description 13
- 238000012546 transfer Methods 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000009191 jumping Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- B62K25/00—Axle suspensions
- B62K25/04—Axle suspensions for mounting axles resiliently on cycle frame or fork
-
- 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
-
- 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
- B62K21/12—Handlebars; Handlebar stems
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Axle Suspensions And Sidecars For Cycles (AREA)
Abstract
The invention discloses a novel motorcycle front suspension and a steering system thereof, comprising: front wheel of motorcycle; a frame; a compression shock absorber; the first end of the single rocker arm type suspension is used for driving operation, and the second end of the single rocker arm type suspension is connected with the frame; the first end of the steering mechanism is in transmission connection with the third end of the single rocker type suspension, the second end of the steering mechanism is connected with the frame, and the third end of the steering mechanism is in transmission connection with the front wheel of the motorcycle. The invention increases the arrangement freedom degree of the steering handle relative to the steering wheel, improves the buffer performance and steering stability of the suspension, effectively improves the problems of limited wheel jump travel of the motorcycle wheels, poor pitching resistance of the motorcycle body, uncontrollable wheel jump steering and the like, reduces the production cost of the motorcycle and improves the production efficiency of the motorcycle type.
Description
Technical Field
The invention relates to the technical field of front suspensions of motorcycles, in particular to a novel front suspension of a motorcycle and a steering system thereof.
Background
With the gradual development of science and technology, motorcycles are widely applied to daily life as a riding instead of walking tools.
In the prior art, conventional front suspensions of motorcycles and steering systems thereof generally employ a front fork. However, the axes of the steering wheels and the steering handle in the front fork suspension and steering system approximately coincide, restricting the position of the steering handle and the front wheels. In addition, the front fork suspension and the steering system have the problems of limited wheel jump, poor pitching resistance and the like.
In order to enrich motorcycle types, expand the degree of freedom of man-machine design and improve the dynamic performance of vehicles, the invention provides a front suspension of a motorcycle and a steering system thereof.
Disclosure of Invention
The invention aims to provide a novel motorcycle front suspension and a steering system thereof. The novel motorcycle front suspension and the steering system thereof aim to increase the arrangement freedom degree of the steering handle relative to the steering wheel and improve the buffer performance and steering stability of the suspension. Based on a single compression shock absorber, a single rocker arm type suspension and a four-bar linkage steering mechanism matched with the single rocker arm type suspension are combined to form a novel single rocker arm type suspension steering system, the problems of limited wheel jump travel of the wheels of the motorcycle, poor pitching resistance of the vehicle body, uncontrollable wheel jump steering and the like are effectively improved, the production cost of the motorcycle is reduced, and the production efficiency of the vehicle type is improved.
In order to achieve the above object, the present invention provides a novel motorcycle front suspension and a steering system thereof, specifically, the novel motorcycle front suspension and the steering system thereof comprise:
front wheel of motorcycle;
a frame;
the compression shock absorber is arranged between the frame and the front wheel of the motorcycle and is used for carrying out shock absorption treatment on the front wheel of the motorcycle;
the first end of the single rocker arm type suspension is used for driving operation of a driver, and the second end of the single rocker arm type suspension is connected with the frame;
the first end of the steering mechanism is in transmission connection with the third end of the single rocker arm type suspension, the second end of the steering mechanism is connected with the frame, and the third end of the steering mechanism is in transmission connection with the front wheel of the motorcycle, so that the motion operation of the single rocker arm type suspension is conveniently transmitted to the front wheel of the motorcycle, and the front wheel of the motorcycle is driven to move.
One embodiment of the present solution, wherein the single rocker arm suspension comprises:
steering handle for driver to drive;
the first steering connecting component is connected with the steering handle and is positioned on the first side of the frame;
the second steering connecting component is positioned on the second side of the frame and is symmetrically arranged with the first steering connecting component;
and the transverse shaft is respectively connected with the first steering connecting component and the second steering connecting component and is used for transmitting the motion on the first steering connecting component to the second steering connecting component.
In one embodiment of the present solution, the first steering linkage assembly further includes: a steering arm, a first steering pull rod, and a first adapter rod; and the first end of the steering arm is connected with the steering handle, and the second end of the steering arm is connected with the transverse shaft through the first steering pull rod and the first steering link rod in sequence.
In one embodiment of the present disclosure, the first steering rod is respectively connected to the steering arm and two ends of the first steering rod by ball joints.
In one embodiment of the present disclosure, the first connecting rod is a lever, and its support point is fixed on the frame; and the long arm of the first connecting rod is connected with the first steering pull rod, and the short arm of the first connecting rod is fixedly connected with the transverse shaft.
In one embodiment of the present solution, the second steering connection assembly further includes: a second transfer lever, a second tie rod; the first end of the second switching rod is connected with the second end of the transverse shaft, the second end of the second switching rod is connected with the front wheel of the motorcycle and the steering mechanism through the second steering pull rod, and the movement of the right side of the vehicle body transmitted by the transverse shaft drives the front wheel of the motorcycle to move.
In one embodiment of the present disclosure, the second steering rod is connected to the second adapter rod, the front wheel of the motorcycle, and the steering mechanism by ball joints.
In one embodiment of the present solution, the steering mechanism further includes:
the first end of the main steering knuckle is connected with the second steering connecting component, and the second end of the main steering knuckle is in transmission connection with the front wheel of the motorcycle;
a first end of the auxiliary knuckle is in transmission connection with a third end of the main knuckle;
the first end of the main rocker arm is in transmission connection with the second end of the auxiliary knuckle, and the second end of the main rocker arm is connected with the frame;
the first end of the auxiliary rocker arm is in transmission connection with the third end of the auxiliary knuckle, and the second end of the auxiliary rocker arm is connected with the frame;
the auxiliary knuckle, the main rocker arm, the auxiliary rocker arm and the frame form a four-bar linkage structure.
In one embodiment of the present invention, the primary rocker arm is connected to the secondary knuckle by a bushing, and the axis of the bushing is parallel to the axial direction of the front wheel of the motorcycle.
In one embodiment of the present disclosure, the steering knuckle is in driving connection with the secondary steering knuckle via a first ball joint, and the steering knuckle is in driving connection with the front wheel of the motorcycle via a second ball joint.
Compared with the prior art, the invention has at least the following beneficial effects:
the novel motorcycle front suspension and the steering system thereof provided by the invention are matched based on the single compression shock absorber, the single rocker arm type suspension and the four-bar steering mechanism matched with the single rocker arm type suspension, so that the novel single rocker arm type suspension steering system is formed, the problems of limited wheel jump stroke, poor pitching resistance of a vehicle body, uncontrollable wheel jump steering and the like of the wheels of the motorcycle are effectively improved, the production cost of the motorcycle is reduced, and the production efficiency of the motorcycle type is improved.
Drawings
Fig. 1 is a schematic diagram of a novel motorcycle front suspension and a steering system thereof.
Fig. 2 is an enlarged schematic view of the steering mechanism according to the present invention.
Fig. 3 is a top view of the steering mechanism provided by the present invention.
Detailed Description
The invention is further described by the following examples, which are given by way of illustration only and are not limiting of the scope of the invention.
The present embodiment provides a novel motorcycle front suspension and a steering system thereof, as shown in fig. 1, specifically, the novel motorcycle front suspension and the steering system thereof include: motorcycle front wheel 1, frame 2, compression shock absorber 3, single rocker arm type suspension, steering mechanism 5.
Wherein, the first end of single rocking arm formula suspension is used for the driver to drive the operation, and the second end of single rocking arm formula suspension is connected with frame 2. The first end of the steering mechanism 5 is in transmission connection with the third end of the single rocker type suspension, the second end of the steering mechanism 5 is connected with the frame 2, the third end of the steering mechanism 5 is in transmission connection with the front wheel 1 of the motorcycle, and steering operation of the single rocker type suspension is conveniently transmitted to the front wheel 1 of the motorcycle so as to drive steering movement of the front wheel 1 of the motorcycle.
Specifically, as shown in fig. 1, the single rocker arm suspension further includes: steering handle 401, first steering linkage assembly, second steering linkage assembly, and transverse shaft 404. Wherein the steering handle 401 is used for the operation and driving of a driver; the first steering linkage assembly is connected to the steering handle 401 and is located on a first side of the frame 2; the second steering connecting component is positioned on the second side of the frame 2 and is symmetrically arranged with the first steering connecting component; the transverse shaft 404 is connected to the first steering connecting component and the second steering connecting component, respectively, and is used for transmitting the rotation instruction on the first steering connecting component to the second steering connecting component. The first steering connecting component and the second steering connecting component are arranged to be matched with the structure of the frame 2, so that the interference of the vehicle body structure of the frame 2 is avoided.
Specifically, the first steering linkage assembly further comprises: a steering arm 4021, a first steering rod 4022, and a first adapter rod 4023; a first end of a steering arm 4021 is connected with a steering handle 401, and a second end of the steering arm is connected with a transverse shaft 404 through a first steering rod 4022 and a first connecting rod 4023 in sequence;
as shown in fig. 1, specifically, a steering handle 401 in a single rocker suspension is fixedly connected with a steering arm 4021 in a first steering connection assembly, and when a driver operates the steering handle 401, the steering arm 4021 is driven to coaxially rotate; the steering arm 4021 in turn drives the first steering rod 4022 and the first steering rod 4023. In this embodiment, the two ends of the first steering rod 4022, which are respectively connected to the steering arm 4021 and the first adapter rod 4023, are both ball-hinged.
Specifically, in the present embodiment, the first adapter rod 4023 is a lever, and its fulcrum is fixed to the frame 2. And the long arm of the lever 4023 is connected to the first steering tie rod 4022, and the short arm thereof is fixedly connected to the transverse shaft 404.
In this embodiment, a first end of the transverse shaft 404 is fixedly connected to the short arm of the first adapter rod 4023, and a second end of the transverse shaft 404 is connected to a first end of the second adapter rod 4031; the movement of the first adapter rod 4023 on the left side of the vehicle body of the vehicle frame 2 is converted to the movement of the second adapter rod 4031 on the right side of the vehicle body by the transverse shaft 404.
As shown in fig. 2, the second steering linkage assembly further includes: a second transfer lever 4031 and a second tie rod 4032; the first end of the second switching lever 4031 is connected to the second end of the transverse shaft 404, and the second end of the second switching lever 4031 is connected to the motorcycle front wheel 1 and the steering mechanism 5 through the second steering link 4032, so that the movement of the right side of the vehicle body transmitted from the transverse shaft 404 drives the motorcycle front wheel 1 to move. In this embodiment, the second steering rod 4032 is connected to the second adapter rod 4031, the front wheel 1 of the motorcycle, and the steering mechanism 5 by ball joints.
As shown in fig. 2 and 3, the steering mechanism 5 further includes: a primary knuckle 501, a secondary knuckle 502, a primary rocker arm 503, and a secondary rocker arm 504. Wherein, the first end of the main steering knuckle 501 is connected with the second switching lever 4031 through the second steering rod 4032, the second end is in transmission connection with the front wheel 1 of the motorcycle, and the third end is in transmission connection with the auxiliary steering knuckle 502; the first end of the main rocker arm 503 is in transmission connection with the second end of the auxiliary knuckle 502, and the second end of the main rocker arm is connected with the frame 2; the first end of the auxiliary rocker arm 504 is drivingly connected to the third end of the auxiliary knuckle 502 and the second end is connected to the frame 2. As shown in fig. 2, the sub-knuckle 502, the main rocker 503, the sub-rocker 504, and the frame 2 form a four-bar linkage structure.
In this embodiment, the primary rocker arm 503 is connected to the secondary knuckle 502 by a bushing, the axis of which is parallel to the axial direction of the front wheel 1 of the motorcycle.
In the embodiment, the main steering knuckle 501 is in transmission connection with the auxiliary steering knuckle 502 through a first spherical hinge, and the main steering knuckle 501 is in transmission connection with the front wheel 1 of the motorcycle through a second spherical hinge; and the extension line of the two ball center connecting lines of the first ball hinge and the second ball hinge intersects with the central plane of the front wheel 1 of the motorcycle and the horizontal ground, so as to ensure that braking steering caused by torque generated by braking force on the main pin of the front wheel 1 of the motorcycle is avoided when the vehicle brakes.
As shown in fig. 2, the inboard extension lines of the second tie rod 4032, the primary rocker arm 503, and the secondary rocker arm 504 intersect at a point. Meanwhile, the first ends of the three connecting rods are all positioned on the same straight line, and the connecting lines of the first ends of the three connecting rods are just parallel to the axial direction of the main pin of the front wheel 1 of the motorcycle; the second ends of the three connecting rods are all positioned on the other straight line, so that the first end of the second steering pull rod 4032 is unchanged relative to the main pin position of the front wheel 1 of the motorcycle in the jumping process of the front wheel 1 of the motorcycle, and the front wheel 1 of the motorcycle is prevented from jumping and steering.
Meanwhile, as shown in fig. 2, the connecting lines of the second ends of the three connecting rods form an inclination angle of about 20 degrees with the vertical direction, and the inclination angle is the back inclination angle of the kingpin of the front wheel 1 of the motorcycle, so that the front wheel 1 of the motorcycle can automatically return to the right for improving the steering stability of the vehicle.
Specifically, as shown in fig. 2, when the front wheel 1 of the motorcycle is excited to jump up by the wheel surface, the auxiliary knuckle 502 is driven to move, and the main rocker 503 and the auxiliary rocker 504 rock around the rotation shafts of the respective frames 2. This structure moves the instantaneous roll axis of the motorcycle front wheel 1 from the main rocker 503 rotation axis to the intersection of the extension lines of the main rocker 503 and the auxiliary rocker 504, and extends the instantaneous roll radius of the motorcycle front wheel 1 axis, thereby improving the anti-pitching characteristic of the vehicle body.
The working principle of the invention is as follows:
when a driver operates the rotary steering handle, the steering arm is driven to coaxially rotate; the steering arm transmits the motion to the transverse shaft through the first steering rod and the first steering rod, and converts the motion of the left side of the vehicle body of the vehicle frame to the motion of the second steering rod on the right side of the vehicle body through the transverse shaft; the second transfer rod is connected with the main steering knuckle through a second steering pull rod, when the front wheel of the motorcycle is excited by the wheel surface to jump upwards, the auxiliary steering knuckle is driven to move, and the main rocker arm and the auxiliary rocker arm rock around the rotating shafts on the frame respectively.
In summary, the novel motorcycle front suspension and the steering system thereof improve the buffer performance and steering stability of the suspension by increasing the arrangement freedom degree of the steering handle relative to the steering wheel, form the novel single-rocker-arm suspension steering system based on the cooperation of the single compression shock absorber, the single-rocker-arm suspension and the four-bar steering mechanism matched with the single-rocker-arm suspension, effectively improve the problems of limited wheel jump stroke, poor pitching resistance of the vehicle body, uncontrollable wheel jump steering and the like of the wheels of the motorcycle, reduce the production cost of the motorcycle and improve the production efficiency of the vehicle type.
While the present invention has been described in detail through the foregoing description of the preferred embodiment, it should be understood that the foregoing description is not to be considered as limiting the invention. Many modifications and substitutions of the present invention will become apparent to those of ordinary skill in the art upon reading the foregoing. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (10)
1. A novel motorcycle front suspension and steering system thereof, characterized by comprising:
front wheel of motorcycle;
a frame;
the compression shock absorber is arranged between the frame and the front wheel of the motorcycle and is used for carrying out shock absorption treatment on the front wheel of the motorcycle;
the first end of the single rocker arm type suspension is used for driving operation of a driver, and the second end of the single rocker arm type suspension is connected with the frame; the first end of the steering mechanism is in transmission connection with the third end of the single rocker arm type suspension, the second end of the steering mechanism is connected with the frame, and the third end of the steering mechanism is in transmission connection with the front wheel of the motorcycle, so that the motion operation of the single rocker arm type suspension is conveniently transmitted to the front wheel of the motorcycle, and the front wheel of the motorcycle is driven to move.
2. The novel motorcycle front suspension and steering system thereof as claimed in claim 2, wherein said single rocker arm suspension comprises:
steering handle for driver to drive;
the first steering connecting component is connected with the steering handle and is positioned on the first side of the frame;
the second steering connecting component is positioned on the second side of the frame and is symmetrically arranged with the first steering connecting component;
and the transverse shaft is respectively connected with the first steering connecting component and the second steering connecting component and is used for transmitting the motion on the first steering connecting component to the second steering connecting component.
3. The novel motorcycle front suspension and steering system thereof of claim 2, wherein said first steering linkage assembly further comprises: a steering arm, a first steering pull rod, and a first adapter rod; and the first end of the steering arm is connected with the steering handle, and the second end of the steering arm is connected with the transverse shaft through the first steering pull rod and the first steering link rod in sequence.
4. The novel motorcycle front suspension and steering system thereof according to claim 3, wherein both ends of the first steering pull rod, which are respectively connected with the steering arm and the first steering pull rod, are respectively connected with a spherical hinge.
5. The front suspension of the novel motorcycle and a steering system thereof according to claim 3, wherein the first connecting rod is a lever, and a supporting point thereof is fixed on the frame; and the long arm of the first connecting rod is connected with the first steering pull rod, and the short arm of the first connecting rod is fixedly connected with the first end of the transverse shaft.
6. The novel motorcycle front suspension and steering system thereof of claim 2, wherein said second steering linkage assembly further comprises: a second transfer lever, a second tie rod; the first end of the second switching rod is connected with the second end of the transverse shaft, the second end of the second switching rod is connected with the front wheel of the motorcycle and the steering mechanism through the second steering pull rod, and the movement of the right side of the vehicle body transmitted by the transverse shaft drives the front wheel of the motorcycle to move.
7. The front suspension and steering system of claim 6 wherein the second steering rod is ball hinged to the second steering rod, the front wheel and the steering mechanism at three ends.
8. The novel motorcycle front suspension and steering system thereof as claimed in claim 2 wherein said steering mechanism further comprises:
the first end of the main steering knuckle is connected with the second steering connecting component, and the second end of the main steering knuckle is in transmission connection with the front wheel of the motorcycle;
a first end of the auxiliary knuckle is in transmission connection with a third end of the main knuckle;
the first end of the main rocker arm is in transmission connection with the second end of the auxiliary knuckle, and the second end of the main rocker arm is connected with the frame;
the first end of the auxiliary rocker arm is in transmission connection with the third end of the auxiliary knuckle, and the second end of the auxiliary rocker arm is connected with the frame;
the auxiliary knuckle, the main rocker arm, the auxiliary rocker arm and the frame form a four-bar linkage structure.
9. A new motorcycle front suspension and steering system as claimed in claim 8, wherein said primary rocker arm is connected to said secondary knuckle by a bushing, and the axis of said bushing is parallel to the axial direction of said motorcycle front wheel.
10. The novel motorcycle front suspension and steering system thereof according to claim 8, wherein said knuckle is drivingly connected to said sub-knuckle by a first ball joint and said knuckle is drivingly connected to said motorcycle front wheel by a second ball joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311766011.6A CN117508436A (en) | 2023-12-21 | 2023-12-21 | Novel motorcycle front suspension and steering system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311766011.6A CN117508436A (en) | 2023-12-21 | 2023-12-21 | Novel motorcycle front suspension and steering system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117508436A true CN117508436A (en) | 2024-02-06 |
Family
ID=89748018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311766011.6A Pending CN117508436A (en) | 2023-12-21 | 2023-12-21 | Novel motorcycle front suspension and steering system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117508436A (en) |
-
2023
- 2023-12-21 CN CN202311766011.6A patent/CN117508436A/en active Pending
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