CN110758617A

CN110758617A - Damping structure of inverted motor tricycle

Info

Publication number: CN110758617A
Application number: CN201911190506.2A
Authority: CN
Inventors: 何强; 周大权; 吴兵勇
Original assignee: Zhejiang Qianjiang Motorcycle Co Ltd
Current assignee: Zhejiang Qianjiang Motorcycle Co Ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-02-07

Abstract

The invention provides a damping structure of an inverted motor tricycle, and belongs to the technical field of motorcycles. It has solved the relatively poor problem of current tricycle travelling comfort. This tricycle falls shock-absorbing structure, the tricycle that falls includes the frame, all connects direction axle and two rocking arms at the frame front end, and two rocking arms are located the below of direction axle, all are connected with the front wheel in the outer end of two rocking arms, and damper includes shock attenuation seat and two tilt cylinder, and the shock attenuation seat slip cap is established epaxially at the direction, two shock attenuation cylinder's upper end all articulates on the shock attenuation seat, and the lower extreme articulates respectively on two rocking arms, is equipped with the bumper shock absorber that can follow direction axle axial to flexible between shock attenuation seat and the frame, and the bumper shock absorber is located the top of shock attenuation seat. This tricycle travelling comfort's travelling comfort is better.

Description

Damping structure of inverted motor tricycle

Technical Field

The invention belongs to the technical field of motorcycles, and relates to an inverted motor tricycle.

Background

Motor tricycle is more common in the life for manned year thing, excitedly in a flexible way, and the motor tricycle that falls means that two front wheels side by side are installed to the front end of frame, and the motorcycle of a rear wheel is installed to the rear end, and the direction axle adjusts the direction through the turning of controlling two front wheels, and in the motorcycle steering process that traveles, in order to avoid the vehicle to lead to the front wheel of opposite side to be lifted and break away from ground when inclining to one side, two front wheels all articulate on the frame through respective rocking arm, and the outer end of rocking arm can the luffing motion.

For example, the inverted three-wheeled motorcycle disclosed in patent document (application No. 201020114257.7) comprises a motorcycle body, two front wheels, two shock absorber assemblies, a steering mechanism, two lower rocker arms and two steering ball head assemblies I, wherein one ends of the two lower rocker arms are respectively connected to the left side and the right side of the motorcycle body, the other ends of the two lower rocker arms are respectively connected with the two front wheels through the steering ball head assemblies I, the two shock absorber assemblies are respectively connected between the two lower rocker arms and the motorcycle body, the inverted three-wheeled motorcycle further comprises two upper rocker arms and two steering ball head assemblies II, one ends of the two upper rocker arms are respectively connected to the left side and the right side of the motorcycle body, the other ends of the two upper rocker arms are respectively connected with the two front wheels through the steering ball head assemblies II, the inverted three-wheeled motorcycle is provided with a pair of upper rocker arms and a pair of lower rocker arms, one, therefore, the shock absorber assembly is also obliquely arranged, but the buffer stroke of the shock absorber assembly is limited, the buffer effect of the shock absorber assembly disappears when the shock absorber assembly is compressed to the limit due to overlarge jumping amplitude of the current wheel or the frame, and at the moment, the shock can be directly transmitted to the frame, so that the comfort is reduced.

Since the above-mentioned defects are caused by the shock absorber assembly being compressed to the limit, those skilled in the art can easily think of avoiding the shock absorber assembly being easily compressed to the limit, i.e. increasing the compression resistance of the shock absorber assembly to bear a larger pressure or increasing the length of the shock absorber assembly to increase the buffering stroke, whereas for the former, increasing the compression resistance of the shock absorber assembly will cause the shock absorber to be harder and difficult to filter smaller shocks, which affects the comfort, and for the latter, because the shock absorber assembly is arranged obliquely, the shock absorber assembly will swing during the bumping process, and when the vehicle frame has a larger up-and-down jump, a vertical force will be generated to the shock absorber assembly, and when the vertical force acts on the oblique shock absorber assembly, the vertical force component will cause the telescopic sliding friction of the components in the shock absorber assembly to become larger, and when the shock absorber assembly is too long, the friction resistance will be amplified, the damage of the shock absorber is easy to occur, and the shock absorption effect is also influenced.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a damping structure of an inverted motor tricycle, which is used for solving the problem of poor comfort of the existing inverted motor tricycle.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a damping structure of motor tricycle falls, the motor tricycle falls includes the frame, all connects direction axle and two rocking arms at the frame front end, two the rocking arm is located the below of direction axle, all is connected with the front wheel in the outer end of two rocking arms, its characterized in that, damper includes shock absorber seat and two slope hydro-cylinders, shock absorber seat slip cover is established at the direction epaxially, two shock absorber cylinder's upper end all articulates on the shock absorber seat, and the lower extreme articulates respectively on two rocking arms, be equipped with the flexible bumper shock absorber of direction axle axial between shock absorber seat and the frame, and the bumper shock absorber is located the top of shock absorber seat.

Two front wheels are connected to a vehicle frame through two rocker arms, the vehicle frame is supported on a shock absorption seat through a shock absorber, the shock absorption seat is supported on the two rocker arms through two inclined oil cylinders, the two rocker arms are supported on the ground through the two front wheels to ensure the stability of the vehicle frame, when one front wheel jumps due to unilateral jolt in the driving process, the front wheel can compress the corresponding inclined oil cylinder through the rocker arm connected with the front wheel, the inclined oil cylinder can buffer and filter the jump of the front wheel and can not be transmitted to the front wheel on the other side, the vehicle frame can not bump to a larger extent, meanwhile, the shock absorption seat is sleeved on a direction shaft in a sliding mode, if the unilateral front wheel jumps to a larger extent, the corresponding inclined oil cylinder can transmit part of shock to the shock absorption seat when being excessively compressed, and then the shock is transmitted to the shock absorber above through the shock absorption seat and is absorbed by the, the shock absorber can buffer the front wheels when the two front wheels jump in a larger amplitude due to a larger amplitude of bumping on the ground, the shock absorber can axially extend along the direction shaft to absorb shock, so that partial acting force is absorbed in the direction of the vertical acting force of the frame, the stress of the tilt oil cylinder is reduced, meanwhile, the shock absorber can restrain one end of the shock absorber and one end of the tilt oil cylinder on the direction shaft, the shock absorber and the tilt oil cylinder can collect and transmit the shock on the two tilt oil cylinders to the shock absorber while the stability of the shock absorber and the tilt oil cylinder is ensured, the shock absorber buffers and filters the shock transmitted to the shock absorber, namely, the two tilt oil cylinders and the shock absorber form double shock absorption, and the shock absorber is used for absorbing the shock which is difficult to be completely absorbed by the tilt oil cylinder due to the large amplitude of jumping of single-side front wheels or the simultaneous jumping of double, the comfort is improved.

In the damping structure of the inverted motor tricycle, the two inclined oil cylinders are symmetrically arranged on two sides of the direction shaft, the inclined oil cylinders are all obliquely arranged, and the distance between the two inclined oil cylinders is gradually increased from top to bottom. The two inclined oil cylinders have better supporting capacity and stability, and when the two front wheels simultaneously jump, the jumping of the two front wheels can be transmitted to the middle and partially offset relatively, so that the damping and energy absorbing capacities of the two inclined oil cylinders are exerted as much as possible.

In the damping structure of the inverted motor tricycle, the front end of the frame is connected with a rocker shaft, the rocker shaft is one, the rocker shaft is arranged along the front-back direction, the two rocker arms are respectively positioned at two sides of the rocker shaft, the inner ends of the two rocker arms are hinged on the same rocker shaft, the piston rods of the two inclined oil cylinders are arranged downwards, and the piston rods of the two inclined oil cylinders are respectively hinged at the middle parts of the two rocker arms in the length direction. When the frame during to the lopsidedness, the frame only with relative rotation between two rocking arms, the contained angle between frame and a rocking arm diminishes promptly, with the contained angle grow between another rocking arm, but can not inwards pull two front wheels, the contact point interval between two front wheels and the ground can not change promptly to avoid appearing turning on one's side when the frame heels, the security is higher, and the slope hydro-cylinder that articulates at the rocking arm middle part has better support stability, improves the security when guaranteeing the travelling comfort.

In the damping structure of the inverted motor tricycle, there are two dampers, each of which includes a damping cylinder and a damping spring, the end of the damping cylinder is hinged to the frame, the piston rods of the two damping cylinders are downward and hinged to the damping seat, the two damping springs are respectively sleeved on the two damping cylinders, and the two ends of the damping spring are respectively abutted to the frame and the damping seat. The shock transmitted to the shock absorption seat can be better absorbed through the shock absorption oil cylinder and the shock absorption spring, and the comfort is improved.

In the damping structure of the inverted motor tricycle, the two damping cylinders are both arranged parallel to the direction shaft, and the two damping cylinders are symmetrically arranged on two sides of the direction shaft. The two damping oil cylinders and the damping springs can uniformly absorb the vibration on the damping seat, the comfort is guaranteed, and the service life of the two dampers can be prolonged under the condition of uniform stress.

In the damping structure of the inverted motor tricycle, the distance between the upper ends of the two inclined oil cylinders is smaller than the distance between the two damping oil cylinders, and the distance between the lower ends of the two inclined oil cylinders is larger than the distance between the two damping oil cylinders. The acting forces of the two inclined oil cylinders are closer to the middle of the shock absorption seat, partial acting forces are offset, and the two shock absorption oil cylinders are located on the outer sides of the upper ends of the two inclined oil cylinders, so that the support stability is better.

In the damping structure of the inverted motor tricycle, the damping seat is rotatably connected with a sliding sleeve, and the sliding sleeve is sleeved on the direction shaft in a sliding manner. Make the direction axle rotate the shock mount relatively, avoid producing to turning to interfere, the shock mount passes through the sliding sleeve simultaneously and can slide the direction axle relatively, for the frame provides the shock attenuation, improves the travelling comfort.

In the damping structure of the inverted motor tricycle, the damping seat is provided with two connecting parts extending towards two sides respectively, the piston rod of the damping oil cylinder is hinged at the outer end of the connecting part, and the end part of the cylinder body of the inclined oil cylinder is hinged at the inner end of the connecting part. The structural stability of the shock absorption seat is ensured, and the shock absorption seat is kept in horizontal balance.

In the damping structure of the inverted motor tricycle, the connecting part is provided with a hinge post extending forwards, an upper hinge sleeve is fixed at the end part of the cylinder body of the inclined oil cylinder, and the upper hinge sleeve is rotatably sleeved on the hinge post. The connection stability of the inclined oil cylinder and the shock absorption seat is improved.

In the damping structure of the inverted motor tricycle, the end part of the piston rod of the tilting oil cylinder is further fixed with a lower hinge sleeve, the lower hinge sleeve is hinged to the rocker arm, the piston rod of the tilting oil cylinder is further sleeved with a damping sleeve, and the damping sleeve abuts against the lower hinge sleeve. The connection stability of the inclined oil cylinder and the rocker arm is guaranteed, the damping sleeve can be abutted against the cylinder body when the inclined oil cylinder is excessively compressed, and therefore the inclined oil cylinder is limited in compression, and excessive vibration is transmitted to the damper.

Compared with the prior art, this tricycle's shock-absorbing structure has following advantage:

1. when one front wheel jumps due to unilateral bumping, the front wheel can compress the corresponding inclined oil cylinder through the rocker arm connected with the front wheel, the inclined oil cylinder can buffer and filter the jumping of the front wheel, the jumping of the front wheel can not be transferred to the front wheel on the other side, and the vehicle frame can not bump to a larger extent.

2. When the large amplitude of the ground bumping causes the two front wheels to jump, the two inclined oil cylinders can buffer the respective front wheels, the shock absorption seat can collect and transmit the shock on the two inclined oil cylinders to the shock absorber, the shock absorber buffers and filters the shock transmitted to the shock absorption seat, namely the two inclined oil cylinders and the shock absorber form double shock absorption, and the comfort is improved.

3. Because two rocking arms are connected with the frame through the same rocking arm axle, when the frame inclines to one side, the frame only rotates with relative between two rocking arms, and the contained angle between frame and a rocking arm diminishes promptly, and the contained angle between another rocking arm grow, but can not pull two front wheels inwards, and the contact point interval between two front wheels and the ground can not change promptly to avoid appearing turning on one's side when the frame heels, the security is higher.

Drawings

Fig. 1 is a partial perspective view of the front part of an inverted motor tricycle.

Fig. 2 is a partial perspective view of the front part of the inverted motor tricycle from another view angle.

Fig. 3 is a front structural view of the front portion of the inverted three-wheeled motorcycle.

Fig. 4 is a structural schematic view of the shock-absorbing structure.

In the figure, 1, a frame; 11. a rocker shaft; 12. a connecting shaft; 2. a direction axis; 3. a rocker arm; 31. a connecting seat; 32. a long sleeve; 33. a short sleeve; 4. a front wheel; 5. a shock absorbing seat; 51. a base body; 52. a connecting portion; 53. a fixing plate; 54. a sliding sleeve; 55. a hinged column; 6. inclining the oil cylinder; 61. an upper hinge sleeve; 62. a lower hinge sleeve; 63. a shock-absorbing sleeve; 7. a shock absorber; 71. a damping oil cylinder; 711. a connecting frame; 72. a shock absorbing spring.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 and fig. 2, a damping structure of an inverted three-wheeled motorcycle comprises a frame 1, a direction shaft 2, two rocker arms 3 and two front wheels 4, wherein the direction shaft 2 is rotatably connected to the front end of the frame 1, the lower part of the front end of the frame 1 is connected with a rocker arm shaft 11, the rocker arm shaft 11 is one, the rocker arm shaft 11 is arranged along the front-back direction, the rocker arm shaft 11 is arranged below the direction shaft 2, the two rocker arms 3 are respectively arranged at two sides of the rocker arm shaft 11, the middle part of the inner end edge of one rocker arm 3 is provided with a long sleeve 32, the two ends of the inner end edge of the other rocker arm 3 are provided with end sleeves, the long sleeve 32 and the two short sleeves 33 are rotatably sleeved on the rocker arm shaft 11, the long sleeve 32 is arranged between the two short sleeves 33, the two front wheels 4 are respectively rotatably connected to the outer ends of the two rocker arms 3, the damping mechanism comprises a damping base 5 and two inclined oil cylinders, the upper ends of the two damping oil cylinders 71 are hinged on the damping seat 5, the lower ends of the two damping oil cylinders are hinged on the two rocker arms 3 respectively, a damper 7 is arranged between the damping seat 5 and the frame 1, and the damper 7 is positioned above the damping seat 5.

Specifically, as shown in fig. 3 and 4, the damper base 5 includes a base body 51, a fixed plate 53 and a sliding sleeve 54, the fixed plate 53 is arc-shaped and is fixedly connected to the base body 51, the sliding sleeve 54 is rotatably connected between the base body 51 and the fixed plate 53, the sliding sleeve 54 is slidably sleeved on the direction shaft 2, two connecting portions 52 extending to both sides are provided on the base body 51, outer ends of the two connecting portions 52 are inclined downward, two tilt cylinders 6 are symmetrically provided on both sides of the direction shaft 2, the tilt cylinders 6 are inclined, a distance between the two tilt cylinders 6 is gradually increased from top to bottom, a front side surface of an inner end of the connecting portion 52 is provided with a hinge column 55 extending forward, an upper hinge sleeve 61 is fixed on a cylinder end of the tilt cylinder 6, the upper hinge sleeve 61 is rotatably sleeved on the hinge column 55, a piston rod of the tilt cylinder 6 is arranged downward, a lower hinge sleeve 62 is fixed on a piston rod end of the, the connecting seat 31 is arranged in the middle of the upper side surface of the rocker arm 3 along the length direction, the lower hinge sleeve 62 is rotatably connected to the connecting seat 31, the piston rod of the tilt cylinder 6 is further sleeved with a damping sleeve 63, the damping sleeve 63 is made of rubber materials, and the damping sleeve 63 abuts against the lower hinge sleeve 62.

Two shock absorbers 7 are provided, each shock absorber 7 comprises a shock absorbing oil cylinder 71 and a shock absorbing spring 72, the frame 1 is provided with two connecting shafts 12 which respectively extend towards two sides, the cylinder body ends of two shock absorption oil cylinders 71 are respectively articulated on the two connecting shafts 12, the piston rods of the two shock absorption oil cylinders 71 are both arranged downwards, a U-shaped plate-shaped connecting frame 711 is fixed at the end part of the piston rod of the damping oil cylinder 71, the two connecting frames 711 are respectively buckled at the outer ends of the two connecting parts 52 and are hinged with each other, the two damping springs 72 are respectively sleeved on the two damping oil cylinders 71, the upper end of the damping spring 72 is propped against the frame 1, the lower end is propped against the connecting frame 711, the two damping oil cylinders 71 are both arranged in parallel with the direction shaft 2, and the two damping oil cylinders 71 are symmetrically arranged at two sides of the direction shaft 2, the distance between the upper ends of the two tilting oil cylinders 6 is smaller than the distance between the two damping oil cylinders 71, and the distance between the lower ends of the two tilting oil cylinders 6 is larger than the distance between the two damping oil cylinders 71.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although the terms frame 1, rocker arm shaft 11, connecting shaft 12, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. The utility model provides a damping structure of motor tricycle falls, falls motor tricycle includes frame (1), all connects direction axle (2) and two rocking arms (3) at frame (1) front end, two rocking arm (3) are located the below of direction axle (2), all are connected with front wheel (4) in the outer end of two rocking arms (3), its characterized in that, damper includes shock attenuation seat (5) and two slope hydro-cylinders (6), shock attenuation seat (5) slip cover is established on direction axle (2), two the upper end of shock attenuation hydro-cylinder (71) all articulates on shock attenuation seat (5), and the lower extreme articulates respectively on two rocking arms (3), be equipped with between shock attenuation seat (5) and frame (1) and can follow direction axle (2) axial telescopic bumper shock absorber (7), and bumper absorber (7) are located the top of shock attenuation seat (5).

2. The shock-absorbing structure of a reverse motor tricycle according to claim 1, wherein the two tilt cylinders (6) are symmetrically disposed at both sides of the steering shaft (2), the tilt cylinders (6) are both disposed in a tilted manner, and the distance between the two tilt cylinders (6) is gradually increased from top to bottom.

3. The shock absorption structure of the inverted motor tricycle as claimed in claim 2, wherein the front end of the frame (1) is connected with a rocker shaft (11), the rocker shaft (11) is one, the rocker shaft (11) is arranged along the front-rear direction, the two rocker arms (3) are respectively located on two sides of the rocker shaft (11), the inner ends of the two rocker arms (3) are hinged to the same rocker shaft (11), the piston rods of the two tilt cylinders (6) are arranged downward, and the piston rods of the two tilt cylinders (6) are respectively hinged to the middle of the two rocker arms (3) in the length direction.

4. The damping structure of a motor tricycle as claimed in claim 1, 2 or 3, wherein there are two dampers (7), each damper (7) includes a damping cylinder (71) and a damping spring (72), the ends of the two damping cylinders (71) are hinged to the frame (1), the piston rods of the two damping cylinders (71) are downward arranged and hinged to the damping base (5), the two damping springs (72) are respectively sleeved on the two damping cylinders (71), and the two ends of the damping spring (72) respectively abut against the frame (1) and the damping base (5).

5. The shock absorbing structure of a reverse motor tricycle according to claim 4, wherein the two shock absorbing cylinders (71) are both disposed in parallel with the direction axis (2), and the two shock absorbing cylinders (71) are symmetrically disposed at both sides of the direction axis (2).

6. The shock-absorbing structure of an inverted motor tricycle according to claim 5, wherein the interval between the upper ends of the two tilt cylinders (6) is smaller than the interval between the two shock-absorbing cylinders (71), and the interval between the lower ends of the two tilt cylinders (6) is larger than the interval between the two shock-absorbing cylinders (71).

7. The structure of claim 4, wherein the shock absorbing seat (5) is rotatably connected with a sliding sleeve (54), and the sliding sleeve (54) is slidably sleeved on the direction shaft (2).

8. The shock-absorbing structure of an inverted motor tricycle according to claim 7, wherein the shock-absorbing seat (5) has two connection portions (52) respectively extending to both sides, the piston rod of the shock-absorbing cylinder (71) is hinged at the outer end of the connection portion (52), and the cylinder body end of the tilt cylinder (6) is hinged at the inner end of the connection portion (52).

9. The shock absorbing structure of a reverse motor tricycle according to claim 8, wherein the connecting portion (52) has a hinge pillar (55) extending forward, and an upper hinge sleeve (61) is fixed to the end of the cylinder body of the tilt cylinder (6), and the upper hinge sleeve (61) is rotatably fitted over the hinge pillar (55).

10. The shock absorbing structure of a reverse motor tricycle according to claim 9, wherein the end of the piston rod of the tilt cylinder (6) is further fixed with a lower hinge sleeve (62), the lower hinge sleeve (62) is hinged to the rocker arm (3), the piston rod of the tilt cylinder (6) is further sleeved with a shock absorbing sleeve (63), and the shock absorbing sleeve (63) abuts against the lower hinge sleeve (62).