Motorcycle shock absorber

Abstract

The present invention provides a motorcycle shock absorber, comprising four cylinders, wherein the lower parts of two adjacent cylinders are movably connected together through a connecting sleeve, a front wheel axle hole is provided on the connecting sleeve, a movable rod is inserted into the inner cavity of each cylinder, the top of each movable rod is connected to a support seat assembly, a spring is sleeved on each movable rod, and the upper and lower ends of the spring are limited; the lower parts of the two adjacent cylinders can move radially. The shock absorber provided by the present invention has: high dimensional accuracy and shape and position tolerance accuracy, long service life; good flexibility, the ability to adapt to the machining errors of the cylinder and its mounting hole, and can avoid the loss of shock absorption comfort due to the jamming of the left and right front shock absorbers after tightening the front wheel axle; good comfort and safety.

Description

Technical Field

[0001] The invention relates to a shock absorber, in particular to a motorcycle shock absorber. Background Art

[0002] In the prior art, document CN303738089S discloses a shock absorber (new four-spring model), which is a typical four-spring shock absorber, comprising four iron cylinders, wherein the bottoms of two adjacent iron cylinders are fixedly connected by a connecting piece, a front wheel axle hole is provided on the connecting piece, a movable rod is inserted into the inner cavity of each iron cylinder, the top of each movable rod is connected to a support seat assembly, a spring is sleeved on each movable rod, and the upper and lower ends of the spring are limited. When in use, under the action of external force, the lower part of the iron cylinder is axially compressed and moves upward to drive the spring to contract. After the external force is removed, the spring rebounds and drives the iron cylinder to reset.

[0003] However, as mentioned above, the four-spring shock absorber has the problems of short service life and poor comfort. Moreover, when a motorcycle equipped with such a four-spring shock absorber is running at high speed, the shock absorber is prone to swinging left and right and unilateral deviation, which affects the riding comfort and stability. Summary of the invention

[0004] The present invention aims to provide a motorcycle shock absorber, which is at least used to solve the technical problem of short service life of four-spring shock absorbers existing in the background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution.

[0006] A motorcycle shock absorber comprises four cylinders, wherein the lower parts of two adjacent cylinders are movably connected together by a connecting sleeve, a front wheel axle hole is arranged on the connecting sleeve, a movable rod is inserted into the inner cavity (inner hole) of each cylinder, the top of each movable rod is connected to a support seat assembly, a spring is sleeved on each movable rod, and the upper and lower ends of the spring are limited; the characteristic is that the lower parts of two adjacent cylinders can move radially.

[0007] In order to improve the comfort and safety of the four-spring shock absorber, the radial range of motion of two adjacent cylinders is 1mm.

[0008] In order to further improve the comfort and safety of the four-spring shock absorber, a support ear with a hole is provided at the lower part of each cylinder, the holes on the two support ears of two adjacent cylinders are coaxially arranged, and the connecting sleeves are simultaneously passed through the holes on the two support ears.

[0009] As a preferred solution, the connecting sleeve is a movable connecting sleeve, and the matching mode between the connecting sleeve and the hole on the support ear is a clearance fit.

[0010] In order to better solve the problem of "a motorcycle with such a four-spring shock absorber is prone to swinging left and right and unilateral deviation when running at high speed", the front wheel axle hole is set in the middle of the connecting sleeve, and the center of the front wheel axle hole is located on the symmetry line of the two adjacent cylinders.

[0011] Furthermore, the cylinder body is made of an aluminum alloy cylinder that meets the strength requirements, and the inner hole of the aluminum alloy cylinder is processed by internal chip removal processing equipment.

[0012] In order to further improve the shock absorption performance and road adaptability of the shock absorber, a damper and / or a hydraulic buffer component is also arranged in the cylinder.

[0013] Due to the adoption of the above technical solution, the shock absorber provided by the present invention has the following beneficial effects:

[0014] (1) High dimensional accuracy and geometric tolerance, long service life;

[0015] (2) Good flexibility, with the ability to adapt to the machining errors of the cylinder and its mounting holes, which can prevent the left and right front shock absorbers from getting stuck and losing shock absorption comfort after tightening the front wheel axle;

[0016] (3) Good comfort and safety, good stability during driving, especially at high speeds, stable and reliable heavy-load driving, and no problems with left and right swinging of the shock absorber or unilateral deviation;

[0017] (4) The problems of poor shock absorption performance, compression bottoming and recovery noise, and poor road and load adaptability of the existing four-spring shock absorber are solved, greatly improving the driving stability and anti-rollover ability of the motorcycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the main direction of the motorcycle shock absorber in the embodiment

[0019] Figure 2 yes Figure 1 Schematic diagram of the left direction;

[0020] Figure 3 yes Figure 1 Schematic diagram of the top view;

[0021] Figure 4 yes Figure 1 Schematic cross-sectional view of ;

[0022] Figure 5 Schematic diagram of a motorcycle shock absorber in an embodiment Figure 1 ;

[0023] Figure 6 Schematic diagram of a motorcycle shock absorber in an embodiment Figure 2 . DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but the following embodiments are only used to help understand the principles and core ideas of the present invention and are not intended to limit the scope of protection of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principles of the present invention, improvements made to the present invention also fall within the scope of protection of the claims of the present invention. Example

[0025] See also Figures 1 to 6 A motorcycle shock absorber includes four cylinders 2, the lower parts of two adjacent cylinders 2 are movably connected together through a connecting sleeve 1, specifically including a left front cylinder 21, a left rear cylinder 23, a right front cylinder and a right rear cylinder, the left front cylinder 21 is adjacent to the left rear cylinder 23 and movably connected together through the connecting sleeve 1, and the right front cylinder is adjacent to the right rear cylinder and movably connected together through the connecting sleeve 1. A front wheel axle hole 8 is provided on the connecting sleeve 1, and a movable rod 4 is inserted into the inner cavity of each cylinder 2, and the top of each movable rod 4 is connected to a support seat assembly, and a spring 3 is sleeved on each movable rod 4, and the upper and lower ends of the spring 3 are limited; the lower parts of the two adjacent cylinders 2 can move radially.

[0026] In a preferred embodiment, the radial movable range of two adjacent cylinders 2 is 1 mm, that is, the cylinders 2 have a radial movable range of 1 mm after being loaded.

[0027] In a preferred embodiment, a support ear with a hole is provided at the lower part of each cylinder 2, the holes on the two support ears of two adjacent cylinders 2 are coaxially arranged, and the connecting sleeve 1 is simultaneously passed through the holes on the two support ears. Figure 2 As shown, a support ear 22 is provided at the lower portion of the left front cylinder 21, and a support ear 24 is provided at the lower portion of the left rear cylinder 23. The support ear 22 and the support ear 24 are arranged opposite to each other, and holes are provided on the support ear 22 and the support ear 24 respectively, and the two holes are coaxially arranged. The connecting sleeve 1 is simultaneously passed through the two holes and is clearance-matched therewith, and the clearance amount can be controlled at 1-2 mm to enable the cylinder 2 to move radially.

[0028] In order to better solve the problem of "a motorcycle with such a four-spring shock absorber is prone to swinging left and right and unilateral deviation when running at high speed", the front wheel axle hole 8 is set in the middle of the connecting sleeve 1, and the center of the front wheel axle hole 8 is located on the symmetry line of the two adjacent cylinders 2.

[0029] In this embodiment, the cylinder 2 is made of an aluminum alloy cylinder, and the inner hole of the aluminum alloy cylinder is processed by internal chip removal processing equipment. This aluminum alloy cylinder is beneficial to improving the comfort and service life of the shock absorber.

[0030] Furthermore, a damper and / or a hydraulic buffer assembly is also provided in the cylinder 2. In one application scheme, the motorcycle shock absorber uses 4 sets of aluminum cylinder shock absorbers (four cylinders 2, 3 hydraulic compression buffers, 3 positioning rod assembly hydraulic recovery buffers, 1 built-in damping device), and 4 variable pitch springs.

[0031] The shock absorber in this embodiment solves the problems of poor shock absorbing performance of the shock absorber, compression bottoming and abnormal recovery noise, poor road and load adaptability, etc., and improves driving stability and anti-rollover capability.

Claims

1. A motorcycle shock absorber, comprising four cylinders (2), wherein the lower parts of two adjacent cylinders (2) are movably connected together through a connecting sleeve (1), the connecting sleeve (1) is provided with a front wheel axle hole (8), a movable rod (4) is inserted into the inner cavity of each cylinder (2), the top of each movable rod (4) is connected to a support seat assembly, a spring (3) is sleeved on each movable rod (4), and the upper and lower ends of the spring (3) are limited; the characteristics are: The lower parts of two adjacent cylinders (2) are capable of radial movement.

2. The motorcycle shock absorber according to claim 1, characterized in that: The radial movable range of two adjacent cylinders (2) is 1 mm.

3. The motorcycle shock absorber according to claim 1 or 2, characterized in that: A support ear with a hole is provided at the lower part of each cylinder (2), the holes on the two support ears of two adjacent cylinders (2) are coaxially arranged, and the connecting sleeve (1) is simultaneously inserted into the holes on the two support ears.

4. The motorcycle shock absorber according to claim 3, characterized in that: The connecting sleeve (1) is a movable connecting sleeve, and the matching mode between the connecting sleeve (1) and the hole on the support ear is a clearance fit.

5. The motorcycle shock absorber according to claim 4, characterized in that: The front wheel axle hole (8) is arranged in the middle of the connecting sleeve (1), and the center of the front wheel axle hole (8) is located on the symmetry line of two adjacent cylinders (2).

6. The motorcycle shock absorber according to claim 5, characterized in that: The cylinder (2) is made of an aluminum alloy cylinder, and the inner hole of the aluminum alloy cylinder is processed by internal chip removal processing equipment.

7. The motorcycle shock absorber according to claim 1, 2, 4, 5 or 6, characterized in that: A damper is also arranged inside the cylinder (2).

8. The motorcycle shock absorber according to claim 1, 2, 4, 5 or 6, characterized in that: A hydraulic buffer component is also arranged in the cylinder (2).

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