RU187643U1 - Snowmobile Caterpillar - Google Patents

Abstract

The snowmobile caterpillar suspension comprises a support frame (1) connected via a guide lever (2) to the snowmobile frame (3), a rear lever (4) connected to the snowmobile frame (3) at points (5), supporting rollers (6), a damper (7), and the caterpillar (8). One end of the damper (7) is pivotally connected to the guide lever (2), and the other to the rear lever (4). Support rollers (6) are mounted on the frame (3) of the snowmobile on the brackets (9) with the possibility of rotation.

The rear lever (4) is equipped with an arm (10) with several mounting holes (11). The bracket (10) may take the form of a versatile triangle mounted on the rear arm (4) with the possibility of rotation relative to it. The holes (11) are located in the corners of the bracket (10) at different distances from the points (5) of the connection of the rear lever (4) with the frame of the snowmobile (3). The design provides the possibility of using levers and a damper of the same size in suspensions with different lengths of the support frame and tracks. 3 ill.

Description

The utility model relates to the field of transport equipment and may find application in the development of snowmobiles.

The operating conditions of the snowmobile, namely: the terrain, the depth of snow cover, the driving style of the driver determine the optimal parameters of the track, which is one of the most important and loaded elements of the chassis of the snowmobile, since it is in constant contact with a heterogeneous surface.

In some cases, there is a need to change the length of the track in accordance with the terrain and driving style, as this affects the cross-country ability and handling of the snowmobile.

A suspension of a snowmobile caterpillar is known, comprising a support frame connected through a guide lever to a snowmobile frame, supporting rollers located on an axis fixed to the snowmobile frame.

The suspension also includes a rear linkage, an intermediate linkage and a damper. One end of the rear arm and one end of the damper are pivotally connected to the support frame. The second ends of the rear lever and damper are pivotally connected to each other and through an intermediate lever with the axis of the supporting rollers, (Utility Model Patent No. 78161, IPC B62D 55/00, announced July 16, 2008, publ. 2008).

The connection of one end of the damper with the support frame adversely affects the distribution of pressure on the support surface of the suspension.

Such a suspension unevenly absorbs impacts falling on the front of the suspension due to the absence of a damper of the guide lever.

The constant contour of the track is ensured by fixing the axis of the support rollers on the frame of the snowmobile.

This suspension design does not imply the use of a rear lever and damper with the same geometric parameters with a support frame and a track of a different length due to their connection with the axis of the support rollers, which should in this case be displaced along the snowmobile frame to ensure a constant contour of the track.

A snowmobile caterpillar suspension is also known, comprising a support frame connected via a guide lever to a snowmobile frame, a rear arm supporting rollers located on a rear arm connected to the snowmobile frame, and a damper, one end of which is pivotally connected to the guide arm, and the other end is connected to rear lever, (http://www.motocontinent.ru/article-004, Ohlins Mono Shock EU)

Such a suspension absorbs shock equally uniformly, no matter where in the suspension they are due to the damper being connected to both suspension arms. It gives a softer ride.

Ensuring the constancy of the track circuit is achieved by the geometric dimensions of the levers, damper, idler rollers.

This suspension design does not allow changing the length of the support frame and, accordingly, the tracks without replacing the suspension arms, to the arms with other geometric parameters.

The technical result aimed at achieving the utility model is the creation of a suspension for a snowmobile caterpillar, the design of which provides the possibility of using levers and a damper of the same size in suspensions with different lengths of the support frame and the caterpillar due to the lack of connection between the idler rollers and the rear lever, which allows changing the location rollers on the frame, depending on the length of the support frame and the track to ensure the constancy of its contour.

The claimed technical result is achieved by the fact that the suspension of the track of the snowmobile contains a support frame, a guide lever and a rear lever connected to the support frame and the frame of the snowmobile, a damper, one end of which is pivotally connected to the guide lever, and the other end with the rear lever, the track and supporting rollers .

New in the utility model is that the support rollers are mounted on a snowmobile frame.

An additional technical result of the utility model is the ability to adjust the damping force by changing the attachment point of the damper on the rear arm, for which it is equipped with a bracket with several mounting holes located at different distances from the junction of the arm with the frame of the snowmobile.

The attached drawing shows the inventive suspension.

The caterpillar suspension of the snowmobile contains a support frame 1 (Fig. 1, 2), connected through the guide lever 2 (Fig. 1) to the frame 3 of the snowmobile, the rear arm 4 connected to the frame of the snowmobile 3 at points 5 (Fig. 1, 2), support rollers 6 (Fig. 1, 2), damper 7 (Fig. 1), and track 8. One end of damper 7 is pivotally connected to the guide lever 2, and the second to the rear lever 4. Support rollers 6 are mounted on the snowmobile frame 3 on the brackets 9 (Fig. 2) with the possibility of rotation.

The rear lever 4 (Fig. 1, 3) is equipped with a bracket 10 (Fig. 3) with several mounting holes 11. The bracket 10 may be in the form of a versatile triangle mounted on the rear lever 4 with the possibility of rotation relative to it. The holes 11 are located in the corners of the bracket 10 at different distances from points 5 (Fig. 1) of the connection of the rear lever 4 with the frame of the snowmobile 3.

When driving on rough terrain due to the connection of the damper 7 with the guide lever 2 and the rear lever 4, the suspension evenly absorbs the blows falling on its front and rear parts.

When installing the suspension on a snowmobile, the guide 2 and the rear levers 4 with the damper 7 connected to them are connected to the support frame 1 and the frame of the snowmobile 3.

Brackets 9 with supporting rollers 6 are mounted on the frame 3 of the snowmobile in a place that provides the required contour and tension of the track 8.

The guide lever 2, the rear lever 4 and the damper 7 are not connected to the supporting rollers 6, which allows the use of these suspension elements with the same geometric dimensions with different guide frames 1 and tracks 8.

To adjust the suspension and adjust the damping force, the damper 7 can be connected to the rear arm 4 through various holes 10 on the bracket 9.

Claims (1)

Snowmobile caterpillar mover, comprising a support frame, a guide lever and a rear lever connected to a support frame and a snowmobile frame, a damper, one end of which is pivotally connected to the guide lever and the other end with a rear lever, a caterpillar and supporting rollers, characterized in that supporting The rollers are mounted on a snowmobile frame.

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