RU201849U1 - ATV frame - Google Patents

Abstract

The utility model relates to all-terrain vehicles, in particular to the frame structures of this technique with an electric drive of all wheels. The technical result of the proposed utility model is to increase the rigidity of the frame. The frame of the ATV consists of round tubes, milled brackets and sheet metal parts welded into a single load-bearing structure. At the same time, developed milled brackets are used in the front and rear parts of the frame, on each of which there are fastenings for the suspension arms of the corresponding wheels, and sheet bridge welded brackets are used in the front and rear parts (modules) of the frame, on which the attachment points of the elastic damping axle struts are located and which the developed brackets of the suspension arms of one axle are connected to each other. 5 ill.

Description

Technology area

The utility model relates to all-terrain vehicles, in particular to the frame structures of this technique with an electric drive of all wheels.

State of the art

Known design of an ATV frame (RF patent RU 135609 U1 "ATV Frame", B62D 21/00, published on 12/20/2013, bull. No. 35). The frame of the all-terrain vehicle is made in the form of a three-dimensional rigid structure, including upper and lower longitudinal and transverse elements, as well as racks, between which compartments for installing the engine and a gas tank are made, and the engine compartment is made in the middle part of the frame, in the front part of the frame on its upper the longitudinal elements have a tubular base of the bracket for attaching the steering column, in the rear part there is a base for attaching the driver's seat; on the lower longitudinal elements of the front and rear parts of the frame there are brackets for installing the lower levers of the front and rear suspensions, in the front part of the frame between adjacent struts there is a crossbar on which a bracket is installed for attaching the upper arms of the front suspension, while in the front and rear parts of the frame are installed brackets for gearboxes, and in the middle part of the frame on the longitudinal elements there is a bracket for installing the footrest, while the longitudinal, transverse elements and racks in the front and middle parts of the frame are made of round pipes. The struts in the rear part of the frame are also made of round pipes and two adjacent struts are connected by a crossbar, the compartment for the gas tank is located between them and contains mounting strips between the crossbars, transverse mounting sheet brackets are located in the engine compartment, brackets for installing levers and a gearbox are made in the form individual parts, brackets for installing the gearbox are located in the front part of the frame on the longitudinal elements, and in the rear part on the transverse ones, while each bracket for installing the levers is made of two separate parts.

The disadvantage of this design is the impossibility of using a traction electric drive, because the considered design was developed taking into account the peculiarities of the installation of the internal combustion engine, as well as the insufficient rigidity of the structure due to the peculiarities of the execution of the brackets.

Also known is the design of the ATV frame (patent JP 2010058759 A "Vehicle body frame for saddle riding type four-wheel vehicle" 03/18/2010), which contains the frame (20) of the vehicle, which consists of the lower part of the frame (21), passing in the longitudinal direction below the engine (11); and an upper frame (25) located above the lower frame (21). The frame (21) of the lower part has an engine support (23) located under the engine (11) and supporting it. The engine support part (23) for supporting the engine and the lower part of the frame (21) consists of a material that has a higher coefficient of elasticity than that of the material from which the upper part of the frame (25) is made.

The disadvantage of this design is the impossibility of using a traction electric drive, in addition, there is a large number of detachable joints of the frame parts, which complicates the process of manufacturing and assembling such a frame, as well as insufficient structural rigidity due to the large number of detachable joints.

Disclosure of a utility model

The technical result of the proposed utility model is to increase the rigidity of the frame.

To achieve the specified technical result, the frame of the ATV consists of circular pipes, milled brackets and sheet parts welded into a single load-bearing structure. At the same time, developed milled brackets are used in the front and rear parts of the frame, on each of which there are fastenings for the suspension arms of the corresponding wheels, and sheet bridge welded brackets are used, on which the attachment points of the elastic damping axle struts are located and which connect the developed brackets of the suspension arms of one axle to each other. friend.

List of figures

FIG. 1 - Frame as part of an ATV.

FIG. 2 - ATV frame. View 1.

FIG. 3 - ATV frame. View 2.

FIG. 4 - Front frame module.

FIG. 5 - Rear frame module.

Implementation of the utility model

FIG. 1-5 shows the frame as part of the all-terrain vehicle (1), its different types and modules in its composition. The utility model is a spatial frame made of circular tubes with integrated milled (cast) brackets and sheet parts and forms a low-mass load-bearing system, which provides for attachment points for traction electric drive elements, traction batteries, main gears, front and rear suspensions, and steering , driver's seat, body kit, etc.

The transfer case complete with an electric motor is attached to the sheet metal parts (22) and (23) (Fig. 2) located on the lower longitudinal pipes (24) and (25), and to the transfer case cross member (27) through four screw-on brackets (28 ). The front battery module is mounted on the frame on the sheet brackets (30) (Fig. 2) and is fixed by means of clamping strips through the pins screwed into the brackets (31) welded into the upper longitudinal pipes (35) and (36). The rear battery module is installed on the frame in a sheet bracket (51) installed in the middle of the frame, and on platforms on the brackets of the rear suspension arms (52) and (53) and is fixed to the frame with pressure bands, the axes of which are installed in the lugs (54) and (55). The traction inverter is mounted on the plate (45) and fixed by means of a bolt connection with the brackets (46) welded into the pipes and the corners (47) provided on the transfer case cross member.

In the utility model, advanced milled brackets (70), (71), (52) and (53) are used in the front and rear parts of the frame, which, together with bridge welded sheet brackets (72) and (74), form the front (Fig. 4 ) and rear (Fig. 5) rigid modules for mounting main gears, levers and suspension struts. On each of the four advanced milled brackets, there are fastenings for the suspension arms of the corresponding wheel, and on the bridge sheet brackets - the attachment points for the elastic damping struts. The front and rear final drives are attached to the carrier system with screw-on milled crossbars (75).

The power steering is attached to the plate (81), which, with the help of reinforcing ribs, takes up the loads falling on it without loss of performance. A handlebar bearing is attached to a milled bracket (83) located at the intersection of two tubes (84) and (86).

The sheet brackets are the attachment points for the footrests (91) and the footrest linkages (14). The body kit and seat are installed on the sheet brackets (96), (97) and the cross member (98), respectively. The front bumper (15) is attached to the brackets of the front suspension arms, which is also attached to the front rack (16). The front rack is additionally attached to the frame with two tie rods (17). The towing hitch bracket (12) is bolted to the rear suspension arm brackets.

The utility model has been developed as part of the work under the Agreement No. 075-15-2019-1335 (14.577.21.0272) between the Moscow State Technical University. N.E. Bauman and the Ministry of Education and Science of Russia.

Claims (1)

ATV frame, consisting of circular pipes, milled brackets and sheet metal parts welded into a single load-bearing structure, while advanced milled brackets are used in the front and rear parts of the frame, on each of which there are fastenings for the suspension arms of the corresponding wheels, and sheet bridge welded brackets , on which the points of attachment of the elastic damping axle struts are located and which connect the developed brackets of the suspension arms of one axle to each other.

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