SU585058A1 - Device for securing saw disc on a shaft - Google Patents

Description

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The invention relates to the timber and woodworking industry and can & 1 used in machines with circular saws.

A device for mounting a saw blade on a shaft is known, which includes clamping shafts and shock sectors l.

It is also known a device for mounting a saw blade on a shaft, including support and clamping, washer, damper sectors, mixed in radial guide washers, sector springs with connecting rods connected to the holders of bearings mounted on the rod 2.

A disadvantage of the known devices is the low degree of damping of the saw blade,

. The purpose of the invention is the rate of 1 degree of damping of saw blade oscillations.

This is achieved by the fact that the device is additionally equipped with damper sectors with tags installed in the clamping washer, and on the rod there are mounted bushes with right and left threaded threads, onto which bearings are fitted, and

the latter are connected to the rods with the help of rings and stops.

The drawing shows the device, the overall appearance.

Claims (2)

The device contains support 1 and clamping washers 2, saw blade 3, damping sectors 4 moving in radial guide washers, spring-loaded with the help of springs 5. Sectors 4 are connected by means of t 6 to rings 7 which interact with stops 8 behind fixed in sleeves 9, mounted on outer rings of bearings 10 by means of elbows 11. Bearings 10 are seated on sleeves with right-cut 12 and left-cut 13, which interact with corresponding cutting on rod 14. Sleeves 12 and 13 are kept from turning to fingers 15, which are fixed in the guide sleeve 16, installed. foam in the bearings 17 (inside the sleeve passes the rod 14). Bearings 17 with outer rings are located inside the saw shaft 18 and are secured against axial displacement by a spring ring 19. Support shabe 1 and shaft 18 f are fixedly connected between each other by a key 20. Fastening nut is mounted as follows When changing the height of the cut therefore, the degree of damping, not stopping the rotation of the saw shaft, the rod 14 from the external drive is turned in the direction of the sleeve 16, and the sleeves 12 13 with either the right and left cutting either close to or move apart. Spread apart, the sleeves are mixed by stoppers 8 on the peg 7, connected by means of 6 with sectors 4, and thus the sectors are closed 51. When the sleeves 12 and 13 approach each other, the stops 8 weaken the rings 7, ceKTOjM.1 4 under the action of the springs 5 and the centrifugal forces, mixing the rings 7 to the saw. To replace the saw blade, tighten the nut 21 and remove the presser washer 2 together with sectors 4, 6 and 6 and ring 7. Using the device will increase the degree of damping of the saw blade, eliminating the stop of the saw shaft when the damping range is changed. The invention of the Device for mounting the saw blade on the shaft, including supporting to the clamping washers, damper sectors, peremetakpies in the radial guides of the bearing washer, springs of sectors with drafts connected to holders of bearings mounted on the rod, characterized in that the purpose of increasing the degree of damping of the saw blade oscillations, the device is additionally equipped with damping sectors installed in the pressure washer with drafts, and on the rod there are mounted bushes with right and left threaded ones Wives bearings, when the clips of the latter are connected to the rods with the help of rings and stops. Sources of information taken into account in the examination: 1. USSR author's certificate number 426809, cl. B 27 B 5/38, 1972. 2. USSR author's certificate hfo 487757, cl. B 27 B 5/38, 1974.