SU755283A1 - Driving roller for apparatus moving upon supports - Google Patents

Description

The invention relates to mechanisms for moving along the posts, supports, frames and other vertical structures and can be used in the construction and operation of power lines, as well as other similar objects.

The leading roller of the device for moving on supports is known, which contains two working rollers connected by means of studs with axle flanges mounted on the axle, and a ratchet wheel interacting with a spring-loaded doggie, • Interconnected with a flexible rod, the other end connected to the control lever [1] ·

The disadvantage of the leading roller is that such a design, when the rollers are mounted on a shaft that rotates in the supports on the frame, creates difficulties in the manufacture and installation of the node in the space frame. With this design of rollers, braking when the device is lowered to move on supports is carried out by braking the main drive. At the same time, the possibility of descending with acceleration is not excluded, which is rendered by the otritsa2

telny psychological impact on the worker.

The purpose of the invention is to improve the manufacturability of the design of the skating rink, improve installation and increase safety in operation.

To do this, on the axis, by means of bearings, a pipe is installed on which the working rollers are fixed, one of the flanges is made with a ring gear on its inner surface, and at one end of the axis, a roller with gears is mounted in the supports, which interact with the flange teeth, and the ratchet the wheel is mounted on the said roller, interconnected with the latter by a threaded connection and enclosed in a casing, one of the walls

20 of which is provided on both sides

friction lining interacting with. side surface of the ratchet wheel.

FIG. 1 schematically shows a roller, a general view; in fig. 2 is a view A of FIG. one.

On axis 1 there is a pipe 2 and working rollers 3, between which there is a sleeve 4. The working rollers are connected with studs 5 together with flange 75

us 6 and 7. Flange 6 is made together with an asterisk of the tensioning mechanism of the device for movement on the supports. The second flange 7 is made with a leading sprocket and gear. Rollers with flanges, sprockets and gears rotate on ball bearings 8.

A roller 10 is attached to the right end of the axis using brackets 9, one end of which is made in the form of a gear and the other has a thread.

A ratchet wheel 11 is mounted on the right end of the roller by means of a thread, which interacts with the pawl 12, which has a spring 13 and a cable 14 fixed on it. A flange 15 is fixedly mounted on the roller 6. Friction lining 17 is attached to the wall 6 of the housing on the end of the roller the handle 18 and the washer 19. The axis is attached to the frame with the help of flanges 20 and 21. The ball bearings are closed by covers 22 and 23.

In working position, the roller is in 'pressed' to the support and provides movement as a result of friction between the surface of the support and the working surface of the rollers 3. When moving up, the flange 7 receives movement from the drive sprocket, and since the rollers 3 and the flanges 6 are connected by studs 5, the movement and an asterisk made at the same time with the flange 6, which is used to rotate the tensioning mechanism, the flange 7 is made together with the leading sprocket and gear wheel and transmits the movement to the roller 10. The thread on the roller has a direction that Removing the device up allows the ratchet wheel 11 to move away from the housing wall 16 to a distance limited by the washer 19, while the dog 12 jumps, the handle 18 rotates freely.

When stopped, the flange 7 receives movement in the opposite direction from the roller 3, drives the gear, from which the roller 10 moves. The dog 12 stops the rotation of the ratchet wheel, and therefore attracts it to the wall 16 of the housing, equipped with friction linings 17, and device stops.

four

To descend, it is necessary to raise the pawl 12 with a handle on a frame (not shown) using a cable 14 and, constantly turning the handle 18, move the ratchet wheel 11 away from the wall of the lining 17, the device descends at a speed dependent on the speed of rotation of the handle 18.

To stop on the descent, you must release the dog 12 for engagement with the ratchet wheel 11. This is done by a handle on the frame with the help of a cable 14. The dog restricts the rotation of the ratchet wheel 11, which by means of a thread is attracted to the wall of the lining 17, and the device stops.

Claims (1)

Claim The drive roller of the device for moving on supports, containing two working rollers connected by means of studs with axle-mounted flanges with asterisks, and a ratchet wheel interacting with a spring-loaded pawl interconnected with a flexible rod, the other end connected to the control lever, characterized in that in order to improve the manufacturability of the design, simplify installation and increase safety in operation, a pipe is mounted on the axis through bearings, on which the working rollers are fixed, one of the flange provided with a toothing on its inner surface. on one of the ends of the axle, a roller with a gear wheel mounted in the supports interacting with the toothed flange crown, the ratchet wheel mounted on the said roller interconnected with the latter by means of a threaded connection and enclosed in a casing, one of the walls of which other plates, interconnecting with the side surface of the ratchet wheel.