SU1209365A1 - Portable device for turning brake rims of mine hoists - Google Patents

Description

The invention relates to mechanical engineering, in particular to portable devices for machining, and can be used to process the cylindrical surfaces of large-sized rotating parts, for example brake rims of belt-guiding pulleys or drums of mine hoisting machines on the site of their installation.

The purpose of the invention is to increase productivity by reducing the installation time of the device.

Figure 1 shows the device, side view on the same, top view.

The device comprises a frame 1 with guides 2 mounted on guides 2 a support 3 with a tool holder 4, a screw 5 for a longitudinal movement of the support, a box of 6 feeds, an electric motor 7, Perpendicularly to the guides 2, measuring rods 8 and 9 are spring-loaded with springs 10 and 11, and the indicator device 12. In this line, connecting the tips of the measuring rods 8 and 9, is parallel: to the guide 2, In addition, the measuring rods 8 and 9 are installed at a certain distance, for example 200 m and interconnected with current 13 of the indicator device 12 by means of a flexible element, for example, line 14 and blocks 15 and 16. The axis of block 16 is made movable and soy, 1shnena with rod 13, on the surface 17 of the brake rim fixed line 18, made with magnetic grippers 19 and 20 and two exemplary parallel surfaces 21 and 22. The surface 21 of the ruler is in contact with the surface 17 of the brake rim, and the surface 22 - with the measuring rods 8 and 9. On the base 1 there is an adjusting screw 23 and fingers 24 and 25. The finger 24 is fixed and finger 25 is made with a diameter A threaded hole for engagement with the adjusting screw 23 and mounted for movement in the groove 26. The device is equipped with a handle 27 for automatic longitudinal feeding of a support, a handle 28 for manual longitudinal movements of the support,

manual transverse movements of the toolholder, handle 30 for turning on the electric motor 7, handle 31 for turning the adjusting screw 23, and attachment points 32.

The device works as follows.

The device is mounted on a previously prepared base 33 so that the fingers 24 and 25 fall into the hole 34 and the base groove 35, then pre-tighten the nuts of the mountings 32,. The bar 18 is secured with magnetic grips 19 and 20 on the brake fluid. , while the sample surface 21 of the ruler is in contact with the surface 17 of the brake rim. On the scale of the indicator device 12, O. is moved. The tool holder 4 is moved by turning the handle 29 until the measuring rods 8 and 9 stop against the reference surface 22 of the ruler 18. The measuring rods 8 and 9, moving, compress the springs 10 and 11 and move the left respectively and the right ends of the flexible element 14. The movable unit 16 and the rod 13 of the indicator device 12 under the action of the spring of the latter (not shown) or the spring 11 moves along the axis of the indicator device 12 exactly half the difference of the magnitudes of the displacements of the measuring rod 8 and 9. The scale of the indicator device 12 will show the tangent of the angle of displacement of the device relative to the surface of the brake rim (tgo (), since with a distance between measuring rods 8 and 9 equal to 200 mm,

B 7

tg о (Oi.01 h. With appropriate graduation of the scale tp, ot h. Here h is the indicator indicator 12. Rotating the adjusting screw 23 with the handle 31, cause the angular movement of the frame 1 due to the interaction of the groove 26 with the finger 25, at the same time controlling to the indicator device 12 the magnitude of the angular displacement. The device is continued until the moment when the measured value of the angular displacement becomes less than the allowable value. Then the nut of the attachment points 32 is finally tightened, the output is measured3

The solid rods 8 and 9 from the contact with the ruler 18, rotating the handle 29, remove the ruler 18, install the cutting tool into the tool holder 4, turn on the drive of the mine hoisting machine and the electric motor 7 of the device with the handle 30, and brake the rim. After grooving the device is dismantled.

093654.

The design of the proposed device makes it possible to reduce the processing time by quickly exhibiting and fixing the device, as well as 5 to improve the processing accuracy, since it makes it possible to control the amount of angular displacement of the device relative to the surface of the rim

/ 7 9 21 W 8 Yu T2 22 S

20 P

Editor A. Shandor

Compiled by A. Shubin

Tehred S. Migunova Proofreader G. Reshetnik

364/17

Circulation 1000 Subscription VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

1iili PPP Patent, Uzhgorod, st. Project, 4

Claims (2)

1. PORTABLE DEVICE FOR DRILLING BRAKE RIMS OF SHAFT LIFTING MACHINES, comprising a bed with guides mounted on guides a caliper with a tool holder, a screw for longitudinal movement of the caliper, feed box, control handle and attachment points, characterized in that, in order to increase productivity by reducing time installation, the device is equipped with spring-loaded measuring rods and an indicator device, 'set-. updated on the tool holder, a ruler made with magnetic grippers and two exemplary surfaces, one of which has the ability to interact with the surface of the brake rim, and the other with the measuring rods, and the exhibition elements of the device placed on the frame, and the measuring rods are interconnected with the indicator device by introduced into the device of a flexible element and blocks, the axis of one of which is movable and connected to the rod of the indicator device. 2. The device according to claim 1, characterized in that the elements of the exhibition are made in the form of an adjusting screw and fingers, one of which is fixed motionless, the other is mounted with the possibility of movement in the groove and interacts with the adjusting screw. . figure 1