A double-body inverted three-wheeled motorcycle

Abstract

In order to solve the problems of easy deviation during braking at medium and high speeds and rollover accidents caused by inconsistent balance of side three-wheelers, the present invention provides a double-body reverse three-wheeled motorcycle, including a frame, wheels, an engine and a transmission system, characterized in that the wheels include two front wheels and a rear wheel centrally arranged behind the middle position of the two front wheels, the two front wheels are symmetrically distributed on the left and right sides of the front end of the frame, the rear wheel is connected to the rear of the frame, the engine, the transmission system, the sidecar cabin, the driver's saddle, and the fuel tank are all arranged above the frame, the fuel tank and the driver's saddle are separately arranged on the left and right sides of the frame with the sidecar cabin, and the engine is located below one side of the fuel tank and the driver's saddle, so that the balance of the whole vehicle is greatly improved, the problems of deviation during high-speed braking and easy rollover during high-speed small-radius right turns of traditional side three-wheeled motorcycles are overcome, and the problem of rollover caused by change of center of gravity during medium-speed and small-radius turns of positive three-wheeled motorcycles is overcome.

Description

Technical Field

[0001] The present invention relates to the technical field of reverse three-wheeled motorcycles, and in particular to a double-body reverse three-wheeled motorcycle. Background Art

[0002] The sidecar tricycle appeared relatively early. It was originally improved and formed as a military vehicle to make up for the shortage of light vehicles. Because of its light weight and relatively low price, it was widely used in a certain historical period. The sidecar tricycle adopts the main structure of a general two-wheeled motorcycle, with a sidecar cabin and a third tire supporting the sidecar cabin added to one side. The rear wheel and the front wheel are on the same horizontal line. The rear wheel is responsible for providing driving power, the front wheel is responsible for steering, and the side wheel is responsible for supporting the sidecar cabin. This structure leads to huge differences in the left and right structures of the vehicle, inconsistent weight distribution and balance, which makes it easy to deviate when braking at medium and high speeds. The third wheel rebounds easily due to the physical shift of the center of gravity when turning right at medium and high speeds, causing rollover accidents. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a twin-body reverse three-wheeled motorcycle, and the technical solution adopted is as follows:

[0004] A double-body inverted three-wheeled motorcycle includes a frame, wheels, an engine and a transmission system, characterized in that the wheels include two front wheels and a rear wheel centrally arranged behind the middle position of the two front wheels, the two front wheels are symmetrically distributed on the left and right sides of the front end of the frame, the rear wheel is connected to the rear of the frame, the engine, transmission system, sidecar cabin, driver's saddle, and fuel tank are all arranged above the frame, and the fuel tank and the driver's saddle are separately arranged on the left and right sides of the frame with the sidecar cabin, and the engine is located below one side of the fuel tank and the driver's saddle.

[0005] Preferably, the frame is mainly composed of a middle frame, a first bracket and a second bracket fixedly connected to the left and right sides of the middle frame, a third bracket is arranged above the first bracket, the fuel tank and the driver's saddle are arranged above the third bracket, the sidecar cabin is fixedly connected above the second bracket, the engine is arranged between the first bracket and the third bracket, and the two front wheels are symmetrically connected to the left and right sides of the front end of the middle frame, and the rear wheels are connected to the rear end of the middle frame.

[0006] Preferably, a rear bracket is provided at the rear end of the middle frame, and the rear bracket is fixedly connected to the left bracket and the right bracket.

[0007] Preferably, the vehicle frame further comprises a seat cushion bracket located above the rear wheel, and at least one seat cushion is provided on the seat cushion bracket.

[0008] Preferably, the middle frame is connected to the rear wheel via a rear single-sided rocker arm.

[0009] Preferably, the transmission system includes a gearbox and a transfer case which are sequentially connected to the power output end of the engine, and a differential and a bevel gear protection box which are respectively connected to the two power output shafts of the transfer case. The two front-wheel drive full-floating half-axles of the differential are respectively connected to the two front wheels, and the bevel gear protection box is connected to the rear wheels.

[0010] Preferably, a rear-drive transmission shaft, a universal joint protection sleeve, and a rear-drive full-floating half-axle are sequentially connected between the bevel gear protection box and the rear wheels.

[0011] The beneficial effects of the present invention are:

[0012] The overall device adopts a split reverse three-wheel structure, with double front wheels symmetrically distributed along the front end of the middle frame, and the rear wheels arranged in the center behind the frame. The sidecar cockpit and the driver's saddle are separated, which greatly improves the balance of the whole vehicle. Compared with the side three-wheel, the braking difficulty is reduced, and the steering stability is greatly improved. It overcomes the problems of high-speed braking deviation and easy rebound and rollover caused by high-speed small-radius right turn of traditional side three-wheel motorcycles. At the same time, it also overcomes the problems of medium-high speed and small-radius turning of traditional positive three-wheel motorcycles, which cause the inner rear wheel to leave the ground or even roll over due to the change of center of gravity; compared with positive three-wheel motorcycles, the reverse three-wheel structure has the advantage of more stable forward driving. When the existing positive three-wheel motorcycle is driving forward, if an emergency situation requires emergency steering, it is easy to cause a large body sway in the face of a sudden change in the center of gravity, which may cause loss of control and rollover. The reverse three-wheel can support the body sway in such situations because the two wheels are in front, and the risk of loss of control is greatly reduced; in addition, a seat bracket and a seat cushion are also provided at the rear of the frame, which can carry more people than the existing reverse three-wheel or side three-wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Schematic diagram of the structure of the present invention

[0014] Figure 2 Exploded view of the structure of the present invention

[0015] Figure 3 A top view of the internal structure

[0016] Figure 4 Schematic diagram of the middle frame structure

[0017] Figure 5 Schematic diagram of the transmission system

[0018] Among them, 1-frame, 101-middle frame, 102-first bracket, 103-second bracket, 104-third bracket, 105-rear bracket, 106-seat bracket, 2-front wheel, 3-rear wheel, 4-side bucket cabin, 5-engine, 6-fuel tank, 7-driver's saddle, 8-handlebar, 9-gearbox, 10-transfer case, 11-umbrella gear protection box, 12-rear drive shaft, 13-universal joint protection cover, 14-rear drive full-floating half shaft, 15-differential, 16-storage box, 17-rear single-sided rocker arm, 18-front rocker arm, 19-spare tire, 20-muffler, 21-front drive shaft, 22-ball cage, 23-front drive full-floating half shaft. DETAILED DESCRIPTION

[0019] The following will refer to the attached Figure 1-5 Exemplary embodiments of the present disclosure are described in more detail. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0020] In the description of the invention, it is necessary to understand that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention.

[0021] like Figure 1-5 The double-body three-wheeled motorcycle shown mainly comprises a frame 1, two front wheels 2, a rear wheel 3, a sidecar cabin 4, an engine 5, a fuel tank 6, a driver's saddle 7, and a transmission system.

[0022] Frame 1 Figure 2As shown, it mainly includes a middle frame 101, a first bracket 102 and a second bracket 103 welded to the left and right sides of the middle frame 101, a third bracket 104 fixedly connected to the top of the first bracket 102, a rear bracket 105 fixedly connected to the rear of the first bracket 102 and the second bracket 103, and a cushion bracket 106 fixedly connected to the top of the rear bracket 105 and located above the rear wheel 3. The first bracket 102 is welded to the left side of the middle frame 101 and is used to install and place the engine 5 and some transmission components. The second bracket 103 is fixedly connected to the right side of the middle frame 101 and is used to install a sidecar cabin 4. A passenger seat is arranged in the sidecar cabin 4. A third bracket 104 is also welded above the first bracket 102. The fuel tank 6 and the driver's saddle 7 are respectively fixedly connected to the top of the third bracket 104 and the front and rear Direction distribution, the upper front end of the third bracket 104 is used to install the steering handle 8, and the rear bracket 105 is fixedly connected to the rear of the first bracket 102 and the second bracket 103, and the rear bracket 105 as a whole is a frame structure that wraps the left and right sides of the rear wheel 3, and a storage box 16 is fixedly connected to the rear bracket 105 on the left and right sides of the rear wheel 3, respectively, the cushion bracket 106 is welded on the top of the rear bracket 105, and the cushion bracket 106 is located on the front side above the rear wheel 3, and a saddle is fixedly connected to the left and right sides of the cushion bracket 106, respectively, and a passenger armrest is also provided between the left saddle and the driver's saddle 7, and the passenger armrest is fixedly connected to the third bracket 104. In addition, the storage box 16 is fixedly connected to the rear bracket 105, and the spare tire 19 is located above the storage box 16 and is fixedly connected to the rear bracket 105.

[0023] like Figure 4 As shown, the middle frame 101 is distributed in the front-to-back direction, and the two front wheels 2 are symmetrically arranged on the left and right sides in front of the middle frame 101. The front wheels 2 are rotatably connected to the front end of the middle frame 101 through a rotating shaft and a front rocker arm 18, and the rear wheels 3 are connected to the rear of the middle frame 101 through a rear single-sided rocker arm 17.

[0024] Transmission system such as Figure 5As shown, it includes a gearbox 9, a transfer case 10, a bevel gear protection box 11, a rear drive transmission shaft 12, a universal joint protection cover 13, a rear drive full floating half shaft 14 and a differential 15. The engine 5 is fixed above the first bracket 102, and the rear end of the engine 5 is connected to a muffler 20 located above the rear bracket 105, and the power output end of the engine 5 is connected to the gearbox 9 and the transfer case 10 in sequence. The gearbox 9 is located above the first bracket 102, and the transfer case 10 is located at the front part above the middle frame 101. The power output end of the front end of the transfer case 10 is connected to the power input end of the differential 15 through the front drive shaft 21. The front-wheel drive fully-floating half-shafts 23 on the left and right sides of the transmission 15 are respectively connected to the ball cages 22 on the two front wheels 2, and the power output shaft at the right end of the transfer case 10 is connected to the umbrella-shaped gear protection box 11. The umbrella-shaped gear protection box 11 is connected to the rear-wheel drive shaft 12, the universal joint protection cover 13 and the rear-wheel drive fully-floating half-shafts 14 in sequence. The rear-wheel drive fully-floating half-shafts 14 are connected to the rear wheels 3. The above-mentioned transmission system can conveniently drive the two front wheels 2 and the rear wheels 3 at the same time. Of course, conventional front-wheel drive, rear-wheel drive and other methods can also be adopted. In addition to being driven by the engine alone, the drive system can also be driven in a hybrid manner.

[0025] The device also includes conventional system devices such as electrical system, braking system, fuel supply system, suspension system, and control system, so there is no need to elaborate on them. The two symmetrically arranged front wheels 2, the centrally arranged rear wheel 3, and the split side bucket cabin 4 and fuel tank 6, and the engine 5 can make the vehicle run more smoothly. This device not only increases the number of passengers, but also overcomes the defects of inconsistent balance of the side three-wheel, which leads to easy deviation during braking at medium and high speeds, and easy rebound of the third wheel during medium and high speed right turns with a small radius, which may cause rollover accidents due to physical shift of the center of gravity and easy rebound of the third wheel. Compared with the positive three-wheel and reverse three-wheel, it has the advantage of more stable forward driving. The existing positive three-wheel forward driving, if encountering an emergency situation requiring emergency steering, faces a sudden change in the center of gravity, it is easy to have a large body sway, which may cause loss of control and rollover. The reverse three-wheel can support the body sway in such situations due to the two wheels in the front, and the risk of loss of control is greatly reduced.

[0026] The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements can be made without departing from the principle of the present invention. These improvements should also be regarded as the protection scope of the present invention.

Claims

1. A twin-body three-wheeled motorcycle, comprising a frame, wheels, an engine and a transmission system, characterized in that: The wheels include two front wheels and a rear wheel centrally arranged behind the middle position of the two front wheels, the two front wheels are symmetrically distributed on the left and right sides of the front end of the frame, the rear wheel is connected to the rear of the frame, the engine, transmission system, sidecar cabin, driver's saddle, and fuel tank are all arranged above the frame, and the fuel tank and driver's saddle are separately arranged on the left and right sides of the frame with the sidecar cabin, the engine is located below one side of the fuel tank and the driver's saddle, the frame consists of a middle frame, a first bracket and a second bracket fixedly connected to the left and right sides of the middle frame, a third bracket is arranged above the first bracket, the fuel tank and the driver's saddle are both arranged above the third bracket, the sidecar cabin is fixedly connected above the second bracket, the engine is arranged between the first bracket and the third bracket, and the two front wheels are symmetrically connected to the left and right sides of the front end of the middle frame, the rear wheel is connected to the rear end of the middle frame, a rear bracket is arranged at the rear end of the middle frame, the rear bracket is fixedly connected to the first bracket and the second bracket, the frame also includes a cushion bracket located above the rear wheel, and at least one cushion is arranged on the cushion bracket.

2. The twin-body three-wheeled motorcycle according to claim 1, characterized in that: The middle frame is connected with the rear wheel through a rear single-sided rocker arm.

3. The twin-body three-wheeled motorcycle according to claim 1, characterized in that: The transmission system includes a gearbox and a transfer case which are sequentially connected to the power output end of the engine, and a differential and a bevel gear protection box which are respectively connected to the two power output shafts of the transfer case. The two front-wheel drive full-floating half shafts of the differential are respectively connected to the two front wheels, and the bevel gear protection box is connected to the rear wheels.

4. The twin-body three-wheeled motorcycle according to claim 3, characterized in that: A rear-drive transmission shaft, a universal joint protection sleeve, and a rear-drive full-floating half-axle are sequentially connected between the umbrella-shaped gear protection box and the rear wheels.

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