SU852698A1 - Vacuum-endless track running gear - Google Patents

Description

one

The invention relates to the field of transport engineering, mainly to the manufacture of tracked vehicles for movement on inclined surfaces.

A vacuum-caterpillar propeller is known, comprising a caterpillar chain with suckers placed on it, an engine for rewinding the caterpillar chain using drive sprockets and a vacuum source Yu, made as a separate unit 1.

The indicated propulsion unit is complicated by its design, since it requires the presence of a separate unit with an engine that creates a vacuum.

Also known is a vacuum-caterpillar propulsion unit, containing a casing, a track chain with suction cups placed on it, a motor for rewinding the track chain with drive sprockets and a vacuum source connected by flexible hoses with suction cups of the lower branch of the track 2.

This propulsor requires the presence of a vacuum source operating from an independent drive motor, as a result of which its mass and dimensions increase significantly.

The aim of the invention is to reduce the weight and dimensions of the mover.

The goal is achieved by the fact that the vacuum source is made in the form of pneumatic cylinders with rods attached to the links of the track chain and two external and internal copier devices attached to the case, interacting with each pneumatic cylinder bodies and -beams, respectively, and the distance between the copiers in the upper part of the engine and in the area around the stars, the stars are smaller than in the area of the support, and, moreover, the copiers are made with grooves, and the pneumatic cylinders are equipped with a carrier, and the piston and the rods are driven it was supplied with epy rollers installed in the specified grooves of copying devices.

FIG. 1 shows the proposed propeller, a general view; in fig. 2 shows section A-A in FIG. one; in fig. 3, view B in FIG. 2

A vacuum-caterpillar propulsion unit is mounted on the base 1 and comprises a housing 2 having lateral guides 3. The lateral guides and the housing are made with two copier devices 4 external and internal. Tracked chain 5 encloses the housing and drive sprockets mounted on shaft 6, which are driven

rotation through gears 7 by the engine 8. The caterpillar chain can be made in the form of a chain Gall. Pneumatic cylinders 9 with pistons 10 installed in them are used as a vacuum source. Pneumatic cylinders can be installed in one or several rows. The pneumatic cylinders 9 are attached to the track 5 with the help of fingers 11 and are fitted with carriers 12 with rollers 13. Each roller is mounted in slots x 14 of the copier. The piston rod 15 of the piston 10 is made with a carrier 16, at the ends of which rollers 17 are also installed, which are located in a slot x 18. A suction cup 19 is elastically mounted on the body of the pneumatic cylinder 9 and connected with a flexible hose 20 with an internal volume of 21 pneumatic cylinders. The suction cup is made with a stem 22, at the end of which there is a plate 23, mounted in the shell 24 and spring-loaded with an elastic element 25.

The propeller is provided with a console 26 for fastening a removable working tool.

Works propulsion as follows.

The propeller is mounted on the supporting surface 27 and slightly pressed against it, then the engine 8 is turned on (for example, an electric motor). At the same time, the shaft 6 and the drive sprockets mounted on it, which are coupled with the chain 5, begin to rotate. Since the target is fastened to the pneumatic cylinders 9, the latter also move along the crawler contour. The slots 14 and 18 of the copying devices are placed at different distances, i.e., in the upper part of the drive and in the area around the sprockets, the distance between them is smaller than in the lower part of the crawler bypass, as a result of which the pneumatic cylinder and piston move. The profile of the slit 14 in section AB (Fig. 3) is designed so that the piston rises relative to the pneumatic cylinder, vacuum is created in cavity 28, and suction cup 19 is pressed against the supporting surface 27. In section CD, the piston reverses and the vacuum decreases to zero.

The propulsion is rotated by the rotation of the right and left track chains.

The propulsion unit makes it possible to significantly facilitate the work of maintenance workers of equipment placed on an inclined plane, and it also provides movement with various removable tools. In comparison with the existing structures, this propulsion unit is simpler and more reliable, since it does not require a special motor and drive to it to create a vacuum.

Claims (2)

1. A vacuum-tracked propulsion unit comprising a housing, a track chain with suckers placed on it, an engine for rewinding the track chain with drive sprockets and a vacuum source connected by flexible hoses with suction cups of the lower branch of the track chain, characterized in that, in order to reduce weight and dimensions, the vacuum source is made in the form of pneumatic cylinders with rods attached to the links of the track chain and two external and internal copier devices fixed in the housing, interacting respectively with The bodies of each pneumatic cylinder and the rods, the distances between the copying devices in the upper part of the drive and in the area around the sprockets are smaller than in the area of the support. 2. The propeller according to claim 1, characterized in that the copier devices are made with grooves, and the pneumatic cylinders are equipped with carriers, and the carrier and rods are equipped with rollers installed in said grooves of the copiers. Sources of information taken into account in the examination 1. The UK patent number 1336082, cl. In 7V, pub. 1973. 2. US patent number 3991842, cl. 180-1, publ. 1976 (prototype). / 25