SU1727983A1 - Device for removing suspension carriage spring from caterpillar tractors - Google Patents

Abstract

Use: in repair equipment to remove the spring of the carriage suspension tracked tractors. The invention: on the base 13 a lever 1 is installed, on the supporting end of which roller 2 is fixed, on the surface of lever 1 a shelf 3 is fixed perpendicular to it with a supporting surface in the form of a groove, and stops made in the form of a triangle, the base of which is facing shelf 3. 4 Il.

Description

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The invention relates to repair equipment and can be used to remove the springs (springs) of the tracked tractor suspension carriage.

A device is known for removing the spring of a carriage for a tracked tractor, with the aid of a T-bar pulled through the openings of the cups of the inner and outer balancers and a spring containing a lever with a roller on the supporting end and a shelf-shaped shelf perpendicular to it. in the longitudinal direction of the form with transverse stops for placement between the coils of the spring to be removed.

However, the device, when the spring to be removed interacts with the shelf of the lever, its turns often rest against stops and prevent it from lying down on the shelf and, moreover, when the spring stretches, its turns remove from each other, rest against the turns and prevent the spring from stretching, causing operation of such a device is difficult.

The aim of the invention is to improve the performance by removing the transverse stops of the arm shelf from the coils of the spring to be disassembled when they interact with each other.

The goal is achieved by the fact that the device for removing the spring of the carriage of the tracked tractor suspension includes a base with a lever mounted on it with the possibility of rotation and fixed on the lever surface perpendicular to it a shelf with a supporting surface in the form of a groove and placed on it with transverse stops, transverse the protrusions are made of triangular cross section, the base of which is facing the shelf and mounted for movement along it.

When a lever shelf interacts with a removable spring, its turns, resting on the inclined sides of the stops, act on them, move them away and stand next to them.

When the spring is released, the distance between the coils increases and they, acting on the stops, move them apart.

FIG. 1 shows the device, a general view; in fig. 2 - the same at the time of removal of the spring; in fig. 3 shows section A-A in FIG. 2: in FIG. 4 shows a section BB in FIG. 2

The proposed device for removing the spring of the carriage of the tracked tractor suspension includes a lever 1, on the supporting end of which roller 2 is fixed, and near the supporting end perpendicular to the lever is fixed shelf 3 of the groove-shaped in the longitudinal direction of the form

gutter-shaped surface which is placed transverse lugs 4.

The stops 4 are made with a triangular cross-section, providing side sliding against the coil of the spring during a frontal meeting with it, and are placed on the shelf 3 so that they can move along the shelf, for which longitudinal grooves 5 are made on the latter, and the stops 4 are made with sliders 6 for directional motions along the grooves provided with movement stops 7 in a direction perpendicular to the shelf.

The stops 4 are designed to be placed 5 between the turns of the spring to be disassembled 8 while raising its end above the rocker cup, and hence to fix it on the shelf 3. Moving the stops 4 along the shelf is necessary to prevent them from meeting

0 with a spring coil during frontal engagement and with a change in the distance between the coils when the spring is stretched, there are 9 with a T-shaped end 10, fixed to the cup of the external balancer 11 by a nut 12, and

5, the lever 1 is mounted on the base 13 with the possibility of rotation and the emphasis in the cup of the internal balancer 14.

The device works as follows.

0Before removing the spring 8 from the carriage,

it is squeezed tightly with a T-shaped end 10, for which the nut 12 is unscrewed from the threaded end 9 and the thrust is passed through the holes of the inner balance 14 cups,

5 of the spring 8 and the outer balance bar 11, after which the nut 12 is tightened, causing the T-shaped end 10 to exit the hole of the cup of the balance bar 14 and rest against the end of the spring 8, which will compress and exit the cup of the balance bar 14.

According to the cantilever end of the compressed spring 8, which is removed from the cup of the balance weight 14, the device is mounted on the base 13 so that the roller 2 stands on

5, the inner surface of the balancer 14, and the shelf 3 - under the spring 8, and the mechanical end of the spring - against the lever 1.

The nut 12 and the spring 8 are turned off. When the lever 1 is pressed against the lever 1 and rotates it on the roller 2. Together with the lever 1, the shelf 3 rotates as well, when turning it lifts the cantilever end of the spring 8 and the stops 4 of the shelf 3 enters the gaps coils of spring 8, holding the console end of the stretchable and simultaneously rotated in the vertical plane of the spring 8 located on the shelf.

If, when the lever 1 turns, the stops 4, interact with the coils of the spring 8, meet head-on, then the stops 4, having a triangular cross-section, under the influence of the forces from the turns of the spring on their inclined sides will move away from the coils, while the sliders 6 protrusions the cross section will move along the longitudinal grooves 5 on the shelf 3, also having a four-sided cross section, giving way to the coils of the spring that lies on the shelf 3, and the stops 4 will be between the coils of the spring, keeping it from slipping from the shelf 3.

After turning, the lever 1 stops the balancer cup 14, and the cantilever end of the spring 8 rises above the balancer cup 14. As the spring 8 is further stretched, the distance between the turns increases and therefore they, applying force to the sides of the stops 4, move them along the shelf 3, while the tetrahedral slider 6 of the stops 4 move along the longitudinal grooves 5 of the tetrahedral section. With this movement of the spring on the shelf, the protrusions do not allow it to crawl off the shelf.

Unscrewing the nut 12 completely, the tug 9 is removed from the hole of the cup of the balancer 11 and from the spring 8, then the spring 8 is removed from the shelf 3.

Claims (1)

The invention is a device for removing a spring of a carriage of a suspension of tracked tractors, comprising a base with a lever mounted on it which can be rotated and a shelf mounted perpendicular to it on a surface with a supporting surface in the form of a groove and transverse stops placed on it, characterized in that In order to improve the performance characteristics, the transverse stops are made of a triangular cross section, the base of which is facing the shelf, and are mounted for movement along it. 3-6-6 Fig4