Motorcycle auxiliary wheel support structure with adjustable swing arm angle

Abstract

The utility model discloses a motorcycle auxiliary wheel support structure capable of adjusting the angle of a swing arm, a motorcycle is provided with a frame main body, the left side and the right side of the frame main body are respectively provided with a mounting part, and each mounting part is provided with a swing arm and a shock-proof rod; the swing arm transversely extends out of the left side and the right side of the frame body, the end, close to the frame body, of the swing arm is hinged to the installation part so that the swing arm can swing up and down, and an auxiliary trundle is arranged at the end, away from the frame body, of the swing arm and used for falling on the ground. One end of the shock-absorbing rod is a first end, the other end of the shock-absorbing rod is a second end, the first end is connected to the mounting part, the second end is connected to the swing arm, the second end of the shock-absorbing rod can be connected to different positions of the swing arm, and / or the first end of the shock-absorbing rod can be connected to different positions of the mounting part; therefore, the swing arm can swing up and down to be fixed at different positions, and different distances are formed between the auxiliary caster and the ground. The device can be suitable for motorcycle curve ABS tests and common straight ABS tests.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of motorcycle auxiliary wheel, especially relates to a motorcycle auxiliary wheel support structure with adjustable swing arm angle. BACKGROUND

[0002] The motorcycle ABS (Anti-lock Brake System) system is a kind of anti-lock braking system, and it is important safety configuration, in order to improve the safety system of motorcycle brake stability, the performance of ABS system of different vehicle models is often uncertain in the early stage of research and development, and it needs to be tested and verified multiple times to confirm performance before being pushed to the market.

[0003] In the test of ABS system in the early stage of research and development, the motorcycle will slide or roll over in most cases, so in order to ensure the safety of the test driver, auxiliary wheel mechanism is needed to prevent the motorcycle from rolling over during the matching test of new vehicle ABS system;The traditional motorcycle auxiliary wheel mechanism is to install an auxiliary wheel on the left and right sides of the motorcycle body respectively, the auxiliary wheel is connected between the auxiliary wheel and the motorcycle through the auxiliary wheel support, and the auxiliary wheel support is hard connected with the frame, in the instant of the car dumping, the auxiliary wheel and the ground will produce a huge impact force, which is easy to throw the test driver off the motorcycle;In addition, the body posture of motorcycle ABS test on curve and ordinary straight ABS test is different, and the test driver often needs to tilt the body at a certain angle during the brake of steering process in curve test, therefore, the auxiliary wheel structure for motorcycle ABS test on curve and the auxiliary wheel for ordinary ABS test often adopt two different supports, which increases the test cost of motorcycle manufacturers. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of motorcycle auxiliary wheel support structure with adjustable swing arm angle, and the technical problems solved are that auxiliary wheel support can simultaneously adapt to motorcycle ABS test on curve and ordinary straight ABS test.

[0005] To achieve the above purpose, the solution of the utility model is as follows: a kind of motorcycle auxiliary wheel support structure with adjustable swing arm angle, the motorcycle has frame main body, and the left and right sides of frame main body are respectively provided with mounting portion, and each mounting portion is installed with a swing arm and a shock rod;

[0006] The swing arm extends out the left and right sides of frame main body horizontally, and the end of swing arm close to frame main body is hinged on mounting portion, so that swing arm swings up and down, and the end of swing arm away from frame main body is provided with an auxiliary caster, and the auxiliary caster is used to fall on the ground;

[0007] The shock rod is capable of elastic extension and contraction, one end of the shock rod is a first end, the other end is a second end, the first end is connected to the mounting portion, the second end is connected to the swing arm, and the second end of the shock rod can be connected to different positions of the swing arm, and / or the first end of the shock rod can be connected to different positions of the mounting portion, so as to enable the swing arm to be fixed at different positions during up and down swinging, thereby forming different distances between the auxiliary casters and the ground.

[0008] Further, when the frame body is upright, the auxiliary casters are located above the ground and are spaced from the ground, so that when the frame body is inclined, the auxiliary casters fall on the ground.

[0009] Further, the mounting portion is formed on a connecting frame, and the connecting frame is detachably mounted on the frame body.

[0010] Further, the connecting frame extends longitudinally, the swing arm is hingedly connected to the bottom side of the connecting frame near one end of the frame body, the shock rod is located above the swing arm, the first end of the shock rod is connected to the top side of the connecting frame, and the second end of the shock rod is connected to the swing arm, so as to form a triangular structure between the shock rod, the connecting frame and the swing arm.

[0011] Further, the triangular structure is located at the middle of the frame body, and the triangular structure is perpendicular to the frame body.

[0012] Further, a plurality of mounting holes are formed on the swing arm, the plurality of mounting holes are spaced apart along the extension direction of the swing arm, the first end of the shock rod is pivotally connected to the mounting portion, and the second end of the shock rod is pivotally connected to one of the plurality of mounting holes, so as to form different distances between the auxiliary casters and the ground.

[0013] Further, the auxiliary casters are universal casters.

[0014] Further, the auxiliary casters are detachably mounted on the swing arm, so as to enable different auxiliary casters to be replaced.

[0015] Further, the auxiliary casters are made of wood or nylon material.

[0016] Further, the swing arm and the mounting portion are pivotally connected through a swing arm bearing, the axis of the swing arm bearing extends front and back, so that the swing arm can swing up and down relative to the mounting portion.

[0017] The beneficial effects of the utility model lie in that: through the left and right sides of the frame body being respectively provided with mounting parts, each mounting part is provided with a swing arm and a shock-absorbing rod, the swing arm is hinged on the mounting part at one end close to the frame body, the swing arm swings up and down, an auxiliary caster is installed at one end of the swing arm away from the frame body, the auxiliary caster is used to fall on the ground, when the frame body is inclined, the auxiliary caster can provide support, the shock-absorbing rod can be elastically extended and contracted, can absorb and buffer the impact from the ground, the auxiliary caster can be more stable, and the risk of rollover is reduced; in addition, the first end of the shock-absorbing rod is connected on the mounting part, the second end of the shock-absorbing rod is connected on the swing arm, the second end of the shock-absorbing rod can be connected on different positions of the swing arm, and / or the first end of the shock-absorbing rod can be connected on different positions of the mounting part, when in use, the connecting position of the shock-absorbing rod is adjusted, so that the swing arm can swing up and down and be fixed on different positions, and then the height between the auxiliary caster and the ground is adjusted, so as to adapt to the ABS test of the motorcycle in straight line or the ABS test of the motorcycle in curve. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the auxiliary wheel support structure of the utility model installed on the frame body.

[0019] Figure 2 It is the elevation view of one kind of mounting structure of the auxiliary wheel support structure of the utility model.

[0020] Figure 3 It is the elevation view of another kind of mounting structure of the auxiliary wheel support structure of the utility model.

[0021] Figure 4 It is the exploded view of the auxiliary wheel support structure of the utility model.

[0022] Label explanation:

[0023] 100-frame body, 1-mounting part, 2-swing arm, 3-shock-absorbing rod, 4-auxiliary caster, 5-connection frame, 6-swing arm bearing, 7-fixing shaft, 8-latch, 9-connection plate, 10-bolt, 21-mounting hole, 22-pivot hole, 23-protruding part, 31-first end, 32-second end, 33-mounting groove, 34-through hole, 51-first mounting part, 52-second mounting part. DETAILED DESCRIPTION

[0024] The utility model is described in detail below in combination with the drawings and specific embodiments.

[0025] In the claims, the specification, and the drawings of the present application, terms such as "top", "bottom", "front", "back", "leading", "trailing", etc., if any, are used for convenience only and are not intended to limit or imply the orientation or configuration of the present application or any related device, unless specifically so stated. The terms "coupled" and "connected", if used, are used broadly and encompass both direct and indirect coupling or connection, as well as fixed or removable coupling or connection.

[0026] As shown in Figures 1 to 4 The utility model provides a kind of auxiliary wheel support structure of adjustable swing arm angle of motorcycle, and motorcycle has frame main body 100, the left and right sides of frame main body 100 are provided with mounting portion 1 respectively, each mounting portion 1 is installed with a swing arm 2 and a shock bar 3;Specifically, mounting portion 1 can be directly formed on frame main body 100, so that swing arm 2 and shock bar 3 are directly installed on frame main body 100, in this specific embodiment, mounting portion 1 is formed on a connecting frame 5, connecting frame 5 is detachably installed on frame main body 100, the number of connecting frame 5 is two, two connecting frames 5 are fixed on the left and right sides of frame main body 100 respectively by bolt connection, and mounting portion 1 on each connecting frame 5 is used for swing arm 2 and shock bar 3;Of course, in other embodiments, connecting frame 5 can be integrally formed, for example, form U-shaped structure, after being mounted and fixed on frame main body 100, it can form the described mounting portion 1 on the left and right sides of frame main body 100 respectively, of course, connecting frame 5 can also be composed of multiple independent parts, after being mounted and fixed on the left and right sides of frame main body 100 respectively, swing arm 2 and shock bar 3 are installed respectively, not specific limit, and those skilled in the art can design according to specific circumstances.

[0027] Focus on Figure 1As shown, two swing arms 2 extend laterally out of the left and right sides of the frame body 100, and the swing arms 2 are hingedly connected to the mounting portion 1 at the end close to the frame body 100, so that the swing arms 2 can swing up and down, and the swing arms 2 are provided with auxiliary casters 4 at the end away from the frame body 100, which are used to fall on the ground, and the shock rods 3 can be elastically extended and retracted, and the shock rods 3 have a first end 31 and a second end 32, the first end 31 is connected to the mounting portion 1, and the second end 32 is connected to the swing arm 2, and the connecting frames 5 extend longitudinally, and each connecting frame 5 is formed with longitudinally spaced first mounting portions 51 and second mounting portions 52, the first mounting portions 51 are located above the second mounting portions 52, the swing arms 2 are connected to the second mounting portions 52 of the connecting frames 5 at the end close to the frame body 100, and the shock rods 3 are located above the swing arms 2, the first ends 31 of the shock rods 3 are connected to the first mounting portions 51 of the connecting frames 5, and the second ends 32 of the shock rods 3 are connected to the swing arms 2, so that a triangular structure is formed between the shock rods 3, the connecting frames 5 and the swing arms 2, and further, triangular structures are formed on both sides of the frame body 100, so that when the frame body 100 is tilted, the frame body 100 can be stably supported, and the connection between the shock rods 3 and the mounting portion 1 and the swing arms 2 is a pivotal connection, so that when the frame body 100 is tilted, the shock rods 3 can be elastically extended and retracted when they are impacted by the ground; of course, in other embodiments, the shock rods 3 can also be located below the swing arms 2, the shock rods 3 are connected to the second mounting portions 52 below the first mounting portions 51, and the swing arms 2 are connected to the first mounting portions 51, so that the triangular structure formed between the shock rods 3, the connecting frames 5 and the swing arms 2 is located below the swing arms 2, and those skilled in the art can design according to specific conditions; in addition, the structure of the shock rod 3 is known, including a damper and a spring arranged on the damper, and will not be specifically described, and when the frame body is tilted during motorcycle testing, the auxiliary casters 4 fall on the ground, and the shock rods 3 can absorb and buffer the impact from the ground, so that the auxiliary casters 4 can be more stable and reduce the risk of rollover.

[0028] In order to adapt the auxiliary wheel support structure formed by the connecting frame 5, the swing arm 2 and the shock rod 3 to different ABS test scenarios, such as motorcycle straight-line ABS test or motorcycle ABS test on a curve, the required motorcycle body inclination angle is different due to the different postures of the motorcycle body in the two test scenarios, and therefore the auxiliary wheel support structure is required to be flexible to adapt to different test scenarios. Specifically, the second end 32 of the shock rod 3 can be connected to different positions of the swing arm 2, and / or the first end 31 of the shock rod 3 can be connected to different positions of the mounting portion 1, so as to enable the swing arm 2 to swing up and down and be fixed at different positions, and further enable the auxiliary foot wheel 4 to form different distances with the ground. That is, there are multiple connection modes between the shock rod 3 and the mounting portion 1 and the swing arm 2. In one of the connection modes, the first end 31 of the shock rod 3 is connected to a fixed position of the mounting portion 1, and the second end 32 of the shock rod 3 is connected to different positions of the swing arm 2. That is, by adjusting the connection position of the second end 32 of the shock rod 3, the swing angle of the swing arm 2 up and down is adjusted. In another connection mode, the second end 32 of the shock rod 3 is connected to a fixed position of the swing arm 2, and the first end 31 of the shock rod 3 is connected to different positions of the mounting portion 1. That is, by adjusting the connection position of the first end 31 of the shock rod 3, the swing angle of the swing arm 2 up and down is adjusted. In another connection mode, the first end 31 of the shock rod 3 is connected to different positions of the mounting portion 1, and the second end 32 of the shock rod 3 is connected to different positions of the swing arm 2. That is, by adjusting the connection positions of the first end 31 and the second end 32 of the shock rod 3, the swing angle of the swing arm 2 up and down is adjusted. By adjusting the swing angle of the swing arm 2 up and down, the distance between the auxiliary foot wheel 4 and the ground is changed. For example, when the motorcycle straight-line ABS test is performed, the distance between the auxiliary foot wheel 4 and the ground can reach 200-300 mm to adapt to the straight-line ABS test. When the motorcycle ABS test on a curve is performed, the swing arm 2 is further swung up by 0-35 degrees and fixed based on the straight-line ABS test, so that the height of the auxiliary foot wheel 4 from the ground is greater than 300 mm to adapt to the ABS test on a curve. Different ABS test scenarios can be adapted. In addition, there are multiple connection modes between the shock rod 3 and the swing arm 2 or the mounting portion 1, which can be sliding connection or connection through multiple mounting positions provided on the swing arm 2 or the mounting portion 1, and the shock rod 3 is connected to the multiple mounting positions, which is not specifically limited.

[0029] Focus on Figure 2 As shown in the figure, multiple mounting holes 21 are formed on the swing arm 2, and the multiple mounting holes 21 are distributed at intervals along the extension direction of the swing arm 2. The first end 31 of the shock rod 3 is pivotally connected to the mounting portion 1, and the second end 32 of the shock rod 3 is pivotally connected to one of the multiple mounting holes 21, so as to form different distances between the auxiliary foot wheel 4 and the ground. For example, Figure 4As shown, a protrusion 23 is formed on the top surface of the swing arm 2, and multiple mounting holes 21 are formed on the protrusion 23. The second end 32 of the shock absorber rod 3 forms a mounting groove 33, the inner diameter of which matches the outer diameter of the protrusion 23. Through holes 34 are formed on the side walls of the mounting groove 33, so that when the mounting groove 33 is fitted onto the protrusion 23, the two side walls of the mounting groove 33 are located on opposite sides of the protrusion 23, and the through holes 34 correspond to the mounting holes 21. A pin 8 is also included, which passes through the through holes 34 and the mounting holes 21 in sequence to pivotally connect the second end 32 of the shock absorber rod 3 to the swing arm 2. In use, as... Figure 2 As shown, when the second end 32 of the shock absorber rod 3 is pivotally connected to the mounting hole 21 closest to the frame body 100, the distance between the auxiliary caster 4 and the ground is minimal, as shown. Figure 3 As shown, when the second end 32 of the shock absorber rod 3 is pivotally connected to the mounting hole 21 furthest from the frame body 100, the upward swing angle of the swing arm 2 reaches its maximum, and the distance between the auxiliary caster 4 and the ground is at its maximum. In addition, the first end 31 of the shock absorber rod 3 and the mounting part 1 can also be connected by the pin 8 to achieve pivoting. This is existing technology and will not be described in detail.

[0030] Preferably, the triangular structure is located in the middle of the frame body 100, and the triangular structure is perpendicular to the frame body 100 to provide maximum support to the frame body 100.

[0031] Key points combined Figure 2 As shown, when the frame body 100 is upright, the auxiliary caster 4 is located above the ground and spaced apart from the ground, so that when the frame body 100 is tilted, the auxiliary caster 4 falls to the ground; of course, in other embodiments, when the frame body 100 is upright, the auxiliary caster 4 may also fall to the ground.

[0032] In this specific embodiment, the auxiliary caster 4 is a swivel caster, which can flexibly adapt to ground with different flatness, so as to provide support during ABS testing and prevent the motorcycle from tipping over.

[0033] In this specific embodiment, the auxiliary caster 4 is detachably mounted on the swing arm 2. Specifically, a connecting plate 9 is fixed at the end of the swing arm 2 away from the frame body 100. The connecting plate 9 extends in the direction away from the frame body 100 and also includes bolts 10. The auxiliary caster 4 is detachably fixed to the swing arm 2 by the bolts 10 so that different auxiliary casters 4 can be replaced to adapt to different test scenarios.

[0034] Preferably, the auxiliary caster 4 is made of wood or nylon.

[0035] Key points combined Figure 4 As shown, the swing arm 2 and the mounting part 1 are pivotally connected by a swing arm bearing 6. The axis of the swing arm bearing 6 extends forward and backward, allowing the swing arm 2 to swing up and down relative to the mounting part 1. Figure 4As shown, the swing arm 2 is formed with a pivot hole 22 near one end of the frame body 100, the pivot hole 22 extends in front and back, the swing arm bearing 6 is embedded in the pivot hole 22, that is, the bearing outer ring of the swing arm bearing 6 is fixed with the pivot hole 22, and the two can be interference fit or other fixing mode, not specifically limited, a fixed shaft 7 is installed on the swing arm bearing 6, the fixed shaft 7 is interference fit with the bearing inner ring, when the swing arm bearing 6 is installed in the pivot hole 22, the front and back ends of the connecting shaft 7 respectively extend out of the front and back ends of the pivot hole 22, and the front and back ends of the connecting shaft 7 are fixedly connected with the connecting frame 5, so that when the swing arm 2 swings up and down, the swing arm 2 can drive the bearing outer ring of the swing arm bearing 6 to rotate relative to the bearing inner ring of the swing arm bearing 6, so that the swing arm 2 pivots up and down relative to the connecting frame 5; the number of swing arm bearings 6 is two, the two swing arm bearings 6 are respectively installed at the front and back ends of the pivot hole 22, the connecting shaft 7 passes through the bearing inner rings of the two swing arm bearings 6 in turn, and is fixed with the bearing inner rings of the two swing arm bearings 6, the two swing arm bearings 6 are provided, so that the swing arm 2 rotates more smoothly.

[0036] The above is only the preferred embodiment of the present application, and is not a limitation on the design of the present application. Any equivalent changes made according to the key design of the present application fall within the scope of protection of the present application.

Claims

1. An adjustable swing arm angle motorcycle auxiliary wheel bracket structure, wherein the motorcycle has a frame body (100), characterized in that: Mounting parts (1) are provided on the left and right sides of the frame body (100), and each mounting part (1) is equipped with a swing arm (2) and a shock absorber rod (3); Two swing arms (2) extend laterally from the left and right sides of the frame body (100) respectively. The end of the swing arm (2) close to the frame body (100) is hinged to the mounting part (1) so that the swing arm (2) can swing up and down. An auxiliary caster (4) is provided at the end of the swing arm (2) away from the frame body (100) for landing on the ground. The shock absorber (3) is elastically telescopic. One end of the shock absorber (3) is the first end (31) and the other end is the second end (32). The first end (31) is connected to the mounting part (1) and the second end (32) is connected to the swing arm (2). The second end (32) of the shock absorber (3) can be connected to different positions of the swing arm (2) and / or the first end (31) of the shock absorber (3) can be connected to different positions of the mounting part (1) so that the swing arm (2) can swing up and down and be fixed in different positions, thereby creating different distances between the auxiliary caster (4) and the ground.

2. The motorcycle auxiliary wheel bracket structure with adjustable swing arm angle according to claim 1, characterized in that: When the frame body (100) is upright, the auxiliary caster (4) is located above the ground and spaced apart from the ground so that when the frame body (100) is tilted, the auxiliary caster (4) falls to the ground.

3. The motorcycle auxiliary wheel bracket structure with adjustable swing arm angle according to claim 1, characterized in that: The mounting part (1) is formed on a connecting frame (5), which is detachably mounted on the frame body (100).

4. The motorcycle auxiliary wheel bracket structure with adjustable swing arm angle according to claim 3, characterized in that: The connecting frame (5) extends longitudinally, and a first mounting part (51) and a second mounting part (52) are formed on the connecting frame (5) with longitudinal spacing. The first mounting part (51) is located above the second mounting part (52). The swing arm (2) is hinged to the second mounting part (52) of the connecting frame (5) at one end near the frame body (100). The shock absorber (3) is located above the swing arm (2). The first end (31) of the shock absorber (3) is connected to the first mounting part (51) of the connecting frame (5), and the second end (32) of the shock absorber (3) is connected to the swing arm (2), so that the shock absorber (3), the connecting frame (5) and the swing arm (2) form a triangular structure.

5. The motorcycle auxiliary wheel bracket structure with adjustable swing arm angle according to claim 4, characterized in that: The triangular structure is located in the middle of the frame body (100), and the triangular structure is perpendicular to the frame body (100).

6. The motorcycle auxiliary wheel bracket structure with adjustable swing arm angle according to claim 1, characterized in that: The swing arm (2) has multiple mounting holes (21) formed on it. The multiple mounting holes (21) are distributed at intervals along the extension direction of the swing arm (2). The first end (31) of the shock absorber (3) is pivotally connected to the mounting part (1), and the second end (32) of the shock absorber (3) is pivotally connected to one of the multiple mounting holes (21), so that the auxiliary caster (4) is at different distances from the ground.

7. The motorcycle auxiliary wheel bracket structure with adjustable swing arm angle according to claim 1, characterized in that: The auxiliary caster (4) is a swivel caster.

8. The motorcycle auxiliary wheel bracket structure with adjustable swing arm angle according to claim 1, characterized in that: The auxiliary caster (4) is detachably mounted on the swing arm (2) so that different auxiliary casters (4) can be replaced.

9. The motorcycle auxiliary wheel bracket structure with adjustable swing arm angle according to claim 1, characterized in that: The auxiliary caster (4) is made of wood or nylon.

10. The motorcycle auxiliary wheel bracket structure with adjustable swing arm angle according to claim 1, characterized in that: The swing arm (2) is pivotally connected to the mounting part (1) via a swing arm bearing (6). The axis of the swing arm bearing (6) extends forward and backward, allowing the swing arm (2) to swing up and down relative to the mounting part (1).

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