SU1130500A2 - Device for varying track of vehicle - Google Patents

Abstract

A DEVICE FOR CHANGING THE PMRINA KOLEY OF A VEHICLE according to autorum No. 962033, characterized in that, in order to expand its functionality by providing a change in the width of the gauge without changing the direction of movement of the vehicle, the spline half-axis is rotatably installed relative to its width of the vehicle to change its width external gearing teeth; interacting with gears, which are made on the wasps; x chervny wheels, and is supplied with an additional brake of the specified gear wheel. 7

Description

one

The invention relates to a running gear of land vehicles, namely, devices for changing the wheel track width.

According to the main bus no. 962033, a device is known for varying the track width of a vehicle, preferably a wheeled tractor, comprising a splined semi-axle interacting with worm wheels rigidly mounted on axles mounted rotatably in a wheel hub and connected to a mechanism their drive, the drive mechanism of the worm wheels is made in the form of a gear wheel with internal gearing, mounted on the half-axle and meshed with gears, which are made on the axes of the worm wheels and equipped with a brake said gear LlJ.

However, in the known device, the direction of rotation of the gear in the course of the vehicle movement when braking a gear wheel depends on the direction of rotation of the spline axis, i.e. the direction of movement of the vehicle

The purpose of the invention is to enhance the functionality by providing a change in track width without changing the direction of movement of the vehicle.

In order to achieve the goal, the gear for changing the width of the vehicle on the spitz half-axle is installed with a rotational speed relative to it of a gear wheel dp of external gearing with teeth, interacting with gears, which are made on the axles of worm wheels, and equipped with an additional brake of the specified gear wheel.

On, figure 1 shows the device, a general view; on figure 2 - section aa and fig, 1.

The device consists of a spline half-axis 1f on which at least one gear rack 2 is made, a flange 3 of the spline half-axis, a gear wheel hub 4 mounted on a gear half-axle 1, a gear wheel 5 with an internal arrangement of teeth and a gear wheel 6 with an external arrangement of teeth set bearings coaxially one inside the other and on the pinch

5002

axis 1, at least one of the worm gear 7, mounted in the hubs of the pinch wheel 4 and being in constant engagement with the teeth of the rail 2, gear 8, which is in permanent engagement with the teeth of the wheels 5 and 6 and rigidly associated with the worm wheel 7, the drum brake 9 of the gear 5 and the brake belt 10 of the other gear 6, the lever AND brake control. A kolodochny brake 9 and a brake tape 10 are mounted on the flange 3. At the end of the brake control hub 11, there are two eyelets 12 and 13. The eye 12 is connected through a hinge to the control axis of the shoe brake 9.

The device works as follows.

When working with a constant track, oles, shoe brake 9 and brake tape 10 are turned off, Shlitseva

the semi-axle 1 rotates, and at the same time with it the pinion hub of wheel 4 rotates with a worm gear 7, gear 8 and gear wheels 5 and 6, torque transmission to the worm gear

wheel 7 from the rack 2 not

going on. A worm gear pair driven by a worm gear represents a self-braking system, which maintains a certain position of the spindle hub of wheel 4 on the spline half-axis 1,

The increase and decrease of the wheel track is carried out at low speeds as follows.

The operator lever I1 acts on the brake pads 9 and stops the rotation with respect to the flange 3 of the gear wheel 5. The splined semi-axle 1 and the splined hub of wheel 4 continue to rotate. The gears 8 in this case receives rotation from the gear wheel 5 and ensures the rotation of the worm gear 7. The worm gear

the wheel 7, being in constant engagement with the teeth of the rail 2 on the spline half-axis 1, acts on the spline hub of the wheel 4 and ensures its movement along the spline half-axis 1 in a direction depending on the direction of its own rotation, and consequently depending on tractor forward or backward movement.

3

The wheel track is enlarged and reduced in a similar way when the lever I1 acts on the brake band 10 and stops rotation relative to the flange 3 of the gear wheel 6. The difference in this case is that the direction of movement of the spline hub 4 on the spline half axis 1 from the direction of movement of the tractor will be reverse, than when braking the toothed wheel 5. This thereby simplifies the management of the change in the wheel track width, since it becomes not directly related to the direction of movement of the tractors. ktoru.

To limit the movement of the spike hub when the wheel track increases at the end of the axle shaft, a limiter is provided. 5 and 6 with the gear 8. When this force reaches a magnitude greater than the braking force of the gear 5 or 6, the latter begins to rotate with the staff hub.

In order to ensure timely deceleration of gears 5 and 6, the brakes are actuated.

a lever placed in the cab that, under the action of the spring, constantly strives to be engaged. This position of the lever is locked.

To change the gauge at the hospital when the engine is not running, radial holes are provided in the design of the gear wheel 5, with

with the help of which it is possible to ensure its manually, and hence the movement of the splined hub of the wheel along the spline half-axis in one direction or the other.

For fixing the axis of the worm gear 7 in the main direction in the bushes of the spline shaft, at the end of the axis, I protrude {from the hub to the outside, a stopper is provided. The protruding part of the axis ends with a tetrahedron so that it rotates during assembly and disassembly.

To eliminate the possibility of getting mechanical particles that contribute to abrasive wear, to work, with the surface of the surface it is advisable to provide rubber-protective covers from the outside.

The use of the present image simplifies the management of the movement of the knees and eliminates the disadvantage of the known invention, saHHbdt, with non-output of the tractor reverse travel to reduce the track width.

It

/ Z

Fmg.2

Claims (1)

DEVICE FOR CHANGING THE WIDTH OF THE VEHICLE OF THE VEHICLE ON the ed., St. No. 962033, characterized in that, in order to expand its functional capabilities, V.N. -Tractor Research Institute (53) 629.11.011.12 (088.8) (56) I. USSR Certificate of Authorship No. 962033, class B 60 V 35 / 10.14 / 07.80. gear wheels. by ensuring a change in the gauge without changing the direction of movement of the vehicle, a gear crescent for external gear engagement is installed on the spline shaft with the possibility of rotation relative to it; interacting with gears that are made on the axles of the worm wheels, and is equipped with an additional brake specified. 1130500 1 1 I 30500