SU1207725A1 - Machine for scraping surfaces - Google Patents

Description

and

The invention relates to the processing of metals by grinding and can be used in various mass-forming areas for machining sheet, internal and external surfaces, cylindrical and conical large-sized products.

The purpose of the invention is to increase the productivity by mechanization of stripping.

FIG. schematically presents the proposed machine for cleaning surfaces, a general view; figure 2 - section aa in figure 1; on fig.Z - section bb in figure 1.

The machine for cleaning and grinding surfaces contains a support frame I of a self-propelled chassis with leading 2 and controlled 3 wheels equipped with an electric actuator 4 with a drive 5. On the support frame t there is a frame 6 carrying the working member and an additional frame 7. The frame 6 of the operating member and the frame 7 is interconnected by a horizontal axis 8 and with a supporting frame - by a vertical axis 9, operating according to the Hooke’s hinge principle. On the frame 6, carrying the working body 10, the actuator 11 of the working body is mounted, driven by the V-belt transmission 12. On the additional frame 7, the body 13 of the pneumatic cylinder 14 is supported, the rod 15 of which engages the frame 6 of the working body. Additional frame 7 through the crank mechanism 16 is connected to the gearbox 17 of the electric actuator 18 of the horizontal oscillatory movement of the working body. The working body 10 includes a housing 19, in which a hollow shaft 21 is mounted on ball bearings 20, in the cavity of which a Morse 23 conical is mounted with a pin 22 with abrasive elements 24 placed on it, fixed by a threaded connection 25, the backpressure cylinder 14 includes a housing 13 a piston 26 with a hollow rod 15 rigidly fixed in it 15. The cavity 27 of the rod 15 through a needle valve 28 mounted on the line 29 containing the reducing valve 30 is connected to the compressed air supply system by an electro-valve 31. C fifth shop air from line 26 is supplied below the piston, a pressure reducing miiu kla1

to

15

20

25

2077252

Pan 30, ensuring the inoperative position of the housing 19 of the working body. The cylinder rod 15 is tarniro fixed in the upper frame 6.

A spring 32 is installed between the body of the pneumatic cylinder and the platform 6, which, together with the pneumatic cylinder 14, ensures a smooth supply of the working body to the surface to be treated, increasing the load on the electric drive when the position of the upper platform changes. Electric drives of all executive mechanisms (steering gear, chassis, working device, oscillatory locking of the rim frame are connected to the remote control not shown)

The machine works as follows.

With the help of a Morse cone 23, the necessary abrasive elements 24 are installed. Compress the air from the workshop main line through the reducer 30, the needle valve 28 and the cavity 27 of the rod 15 to the pneumatic cylinder 14, where the booster pressure is raised, lifting the working member. Meanwhile, CBMI.IM partially compensates the load from the electric actuator 1-1 and creates the necessary force of pressing the working body to the treated surface of the product. The chassis electric drives, the rotation of the working element and the oscillatory movement of the additional frame 7 are sequentially turned on. The frequency of oscillation of the frame 7 is adjusted depending on the type of processing from the remote control. The pneumatic cylinder of the overpressure mounted on the frame 7 moves with it, providing the pressure of the working body to the treated surface with adjustable pressure. By varying the pressure in the pneumatic cylinder by the pressure reducing valve 30 in the course of a single operation, ensure a smooth running-in of the working body at the beginning of the operation and an increase or decrease in pressure during the processing. The possibility of changing the position of frames 6 and 7 with respect to each other is provided by axis 8, and changing the position of these frames relative to the support frame 1 - by axis 9. The presence of a crank mechanism 6 connected to a gearbox 17, for example a worm gear, provides air

35

40

45

50

(: and rykleuchepio provides r-Hiio to the integrity of surface cleaning, excluding PP (T 1usky,

Claims (1)

A SURFACE CLEANING MACHINE containing a self-propelled chassis with an electric drive and a steering mechanism, a frame carrying a working body with a lifting mechanism, characterized in that, in order to increase productivity by cleaning mechanization, the machine is equipped with an additional frame pivotally mounted on the chassis pivotally connected to the frame the working body and the carrier introduced into the machine drive horizontal oscillatory motion, and the lifting mechanism of the working body is located on an additional frame with the possibility of interaction with ama working body.