Motion type all-terrain vehicle frame with longitudinally-arranged engine, four-wheel independent suspension rear double supporting arms

Abstract

A moving type all-terrain vehicle frame with a longitudinally-arranged engine and rear double supporting arms and four independent suspension wheels comprises a bottom frame, a vehicle body frame is arranged on the bottom frame, a vehicle head frame and a vehicle body frame are arranged on the front portion and the rear portion of the vehicle body frame respectively, and a rear frame structure for fixing the longitudinally-arranged engine with a speed reducer is arranged at the tail end of the vehicle body frame. The rear frame structure comprises a rear bottom supporting frame, a rear top supporting frame and a rear connecting frame. The engine upper mounting end, the engine rear mounting end and the engine lower mounting end form a fixing structure for fixing the engine from top to bottom in a multi-point mode. The utility model has the beneficial effects that the structure is reasonable and compact, the whole frame realizes the shaft transmission function by using the longitudinal structural layout design of the engine with the rear speed reducer, the shaft transmission can reduce the power loss of the engine and improve the transmission efficiency, and meanwhile, the movement performance of an SSV model and the stability of the whole vehicle can be improved, and the service life of the whole vehicle is prolonged. In addition, the workload and difficulty of processing and assembling are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to traffic transport equipment technical field especially, relates to a sports all terrain vehicle, concretely is a sports all terrain vehicle frame of engine longitudinal four-wheel independent suspension rear double support arm. BACKGROUND

[0002] The all terrain vehicle frame is used to support the engine, the speed change transmission system and other systems and the passenger, in addition, the frame also provides the mounting position for the wheel, so that the whole frame is supported on the wheel again. The front wheel of the all terrain vehicle can swing left and right as the steering wheel. Because the frame is the support part of the whole all terrain vehicle, so its material and structure must have considerable strength and rigidity, and at the same time, light weight is required, so that high-speed travel is facilitated. In addition, the composition of the parts is assembled in a certain space range on the frame in the form of exposure, and the structure is very strict in stability.

[0003] At present, the traditional small and medium-sized displacement all terrain vehicle adopts the motorcycle engine front transverse structure, and the power is transmitted to the flat fork part through chain transmission, and the frame is connected through the mounting sleeve and rear reduction hanging column. The transmission mode of the engine affects the power output and the independent movement of the rear wheel, and also affects the movement speed of the whole vehicle. At the same time, because the force is transmitted to the tail of the whole vehicle through the mounting sleeve and the rear reduction hanging column, the stress distribution of the SSV vehicle is uneven. In addition, because the position of the shock absorber is on the vertical line of the rear wheel axis, part of the force of the SSV vehicle is borne on the rear wheel, that is, mainly in the tail of the frame, so it is easy to cause the frame to break. CONTENT OF THE UTILITY MODEL

[0004] The utility model solves the above-mentioned problems existing in the prior art, provides a sports all terrain vehicle frame of engine longitudinal four-wheel independent suspension rear double support arm, solves the problem that the engine of the current sports all terrain vehicle is placed forward and transversely, causes the stability of the frame and the independent movement ability of the rear wheel to be poor, and meets the stable and high-performance demand of the sports all terrain vehicle.

[0005] The utility model discloses a kind of engine longitudinal four-wheel independent suspension rear double support arm's sports all-terrain vehicle frame, including bottom frame, bottom frame is vehicle body frame, vehicle body frame front and rear are vehicle head frame and vehicle body frame, vehicle body frame tail end is equipped with the rear frame structure for the engine with reducer fixed in longitudinal arrangement, rear frame structure includes the rear bottom support frame that bottom frame tail end extends out, the rear top support frame that vehicle body frame top tail end extends out and the rear connecting frame that the rear top support frame and rear bottom support frame of upper and lower positions are connected, rear bottom support frame is equipped with engine lower installation end, rear connecting frame is equipped with engine rear installation end, vehicle body frame tail end is equipped with engine upper installation end, engine upper installation end, engine rear installation end and engine lower installation end form the fixed structure of upper rear lower multiple points fixed engine, rear frame structure is centrally arranged at vehicle body frame tail end and is equipped with rear support arm installation end for installing independent suspension rear support arm at bottom frame tail end left and right sides of rear frame structure.Such setting, frame uses the layout of rear longitudinal engine, improve the use space of frame, can reserve enough space design rear support arm independent suspension, rear support arm independent suspension is effectively output under the drive of longitudinal engine, so that the movement of better play comes out.Frame and engine hoisting use buffer rubber block fixed, avoid vibration directly transmitted to frame.The frame structure is simple, compact, the whole frame appears more concise, practical, optimize space arrangement, space utilization is high, vehicle quality distribution is more reasonable, vehicle structure has enough strength to guarantee its fatigue life.

[0006] As a further improvement of the utility model, engine upper installation end, engine rear installation end and engine lower installation end are fixed structure of triangular structure end point arrangement.Such setting, engine upper installation end, engine rear installation end and engine lower installation end are fixed from triangular end to engine, maximum limit improves the stability of fixed, while reasonable dynamic characteristic controls vibration and noise.

[0007] As a further improvement of the utility model, vehicle body frame roof tail end is upwarp and rear top support frame tail end is down-press to form the convex structure of rear top support frame and vehicle body frame junction.Such setting, whole vehicle body forms streamline, ensure driving stable also can improve speed in moving.

[0008] As a further improvement of the utility model, rear top support frame and rear bottom support frame are all front big and rear small contraction structure to form the front big and rear small prismatic structure of rear frame structure.Such setting, make that vehicle body tail end structure space is limited and simplified, to leave space for independent suspension rear support arm, ensure that independent suspension rear support arm installation space is satisfied.

[0009] As a further improvement of the utility model, the rear connecting frame is composed of left and right symmetrical rear connecting pipes, and the rear connecting pipe is a bent pipe structure with the middle part of the pipe body recessed inward. In this way, the tail end space is further contracted under the condition of ensuring the connecting strength, and space is left for the independent suspension rear support arm.

[0010] As a further improvement of the utility model, the rear connecting frame is composed of left and right symmetrical rear connecting pipes, and the rear connecting pipe is a bent pipe structure with the middle part of the pipe body recessed inward. In this way, the tail end space is further contracted under the condition of ensuring the connecting strength, and space is left for the independent suspension rear support arm.

[0011] The utility model has the advantages of reasonable and compact structure, and the overall frame is arranged in a longitudinal structure by using a rear reducer engine, realizes the function of shaft transmission, reduces the power loss of the engine, improves the transmission efficiency, increases the motion performance of the SSV vehicle and the stability of the vehicle, and reduces the processing and assembly workload and difficulty. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structural schematic view of the utility model;

[0013] Figure 2 It is a right view of the utility model;

[0014] Figure 3 It is a rear view of the utility model.

[0015] Mark explanation: rear bottom support frame 1, rear top support frame 2, rear connecting frame 3, rear connecting pipe 3-1, engine lower mounting end 4, engine rear mounting end 5, engine upper mounting end 6, independent suspension rear support arm 7, rear support arm mounting end 8, shock absorber connecting end 9. DETAILED DESCRIPTION

[0016] The utility model will be further described below in combination with the drawings:

[0017] With reference to the drawings: the engine longitudinal four-wheel independent suspension rear double support arm motion type all-terrain vehicle frame in the embodiment comprises a bottom frame, a vehicle body frame on the bottom frame, a vehicle head frame and a vehicle body frame at the front and rear of the vehicle body frame respectively, a rear frame structure for fixing the longitudinal engine with a reducer is arranged at the tail end of the vehicle body frame, the rear frame structure comprises a rear bottom support frame 1 extended from the tail end of the bottom frame, a rear top support frame 2 extended from the tail end of the top of the vehicle body frame and a rear connecting frame 3 connecting the rear top support frame 2 and the rear bottom support frame 1 in the up-down position, the rear bottom support frame 1 is provided with an engine lower mounting end 4, the rear connecting frame 3 is provided with an engine rear mounting end 5, the tail end of the vehicle body frame is provided with an engine upper mounting end 6, the engine upper mounting end 6, the engine rear mounting end 5 and the engine lower mounting end 4 form a fixing structure for fixing the engine from the upper rear lower points, the rear frame structure is arranged in the middle of the tail end of the vehicle body frame and is provided with rear support arm mounting ends 8 for mounting independent suspension rear support arms 7 on the left and right sides of the rear frame structure at the tail end of the bottom frame.

[0018] The engine upper mounting end 6, the engine rear mounting end 5 and the engine lower mounting end 4 are fixed structures arranged at the end points of a triangular structure.

[0019] The tail end of the rear top support frame 2 is depressed, and the tail end of the rear top support frame 2 is depressed to form a convex structure at the connection between the rear top support frame 2 and the vehicle body frame.

[0020] The rear top support frame 2 and the rear bottom support frame 1 are both shrink structures with a large front and a small rear, forming a rear frame structure with a large front and a small rear, like a prism.

[0021] The rear connecting frame 3 is composed of left and right symmetrical rear connecting pipes 3-1, and the rear connecting pipe 3-1 is a bent pipe structure with a concave pipe body in the middle.

[0022] The tail end of the vehicle body frame is fixed with a shock absorber connecting end 9 connected with the shock absorber of the independent suspension rear support arm 7, and the shock absorber connecting end 9 is located above the rear support arm mounting end 8.

[0023] Although the utility model has been illustrated and described by referring to the preferred embodiments, it should be understood by those skilled in the art that various changes in form and details can be made within the scope of the claims.

Claims

1. A sports all-terrain vehicle frame with a longitudinally mounted engine, four-wheel independent suspension, and rear double-trailing arms, comprising a bottom frame, a body frame on top of the bottom frame, and front and rear portions of the body frame being respectively a head frame and a body frame, characterized by: The rear end of the vehicle body frame is provided with a rear frame structure for fixing a longitudinally arranged engine with a speed reducer, the rear frame structure comprising a rear bottom support frame (1) extending from the rear end of the bottom frame, a rear top support frame (2) extending from the top end of the vehicle body frame, and a rear connecting frame (3) connecting the upper and lower rear top support frames (2) and the rear bottom support frame (1), the rear bottom support frame (1) is provided with an engine lower mounting end (4), the rear connecting frame (3) is provided with an engine rear mounting end (5), the rear end of the vehicle body frame is provided with an engine upper mounting end (6), the engine upper mounting end (6), the engine rear mounting end (5) and the engine lower mounting end (4) form a fixing structure for fixing the engine at multiple points at the upper, rear and lower ends, the rear frame structure is centrally arranged at the rear end of the vehicle body frame, and rear support arm mounting ends (8) for mounting independent suspension rear support arms (7) are provided at the rear end of the bottom frame, which are located on the left and right sides of the rear frame structure.

2. The sports all-terrain vehicle frame with a longitudinally mounted engine, four-wheel independent suspension, and rear double-travel arms according to claim 1, characterized in that: The engine upper mounting end (6), the engine rear mounting end (5) and the engine lower mounting end (4) are fixed structures arranged at the end points of a triangular structure.

3. The sports all-terrain vehicle frame with a longitudinally mounted engine, four-wheel independent suspension, and rear double-travel arms according to claim 1, characterized in that: The rear end of the roof of the vehicle body frame is tilted upwards, and the rear end of the top support frame (2) is pressed downwards to form a raised structure at the connection between the rear top support frame (2) and the vehicle body frame.

4. The sports all-terrain vehicle frame with a longitudinally mounted engine, four-wheel independent suspension, and rear double-trailing arms according to claim 1 or 2, characterized in that: The rear top support frame (2) and the rear bottom support frame (1) are both contraction structures with a larger front and a smaller back, forming a prism-like structure with a larger front and a smaller back for the rear frame structure.

5. The sports all-terrain vehicle frame with a longitudinally mounted engine, four-wheel independent suspension, and rear double-trailing arms according to claim 1, characterized in that: The rear connecting frame (3) is composed of rear connecting pipes (3-1) that are symmetrically arranged on the left and right. The rear connecting pipes (3-1) are curved pipe structures with the middle portion of the pipe body recessed inwards.

6. The sports all-terrain vehicle frame with a longitudinally mounted engine, four-wheel independent suspension, and rear double-travel arms according to claim 1, characterized in that: A shock absorber connecting end (9) connected to the shock absorber of the independent suspension rear support arm (7) is fixed to the rear of the vehicle body frame, and the shock absorber connecting end (9) is located above the rear support arm mounting end (8).

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