SU844275A1 - Saw frame oscillation suppressor - Google Patents

Description

one

The invention relates to the woodworking industry.

Known damper oscillations of the frame of the sawing frame, comprising a housing, mounted on the elastic elements balancing mass 1.

Also known is an oscillation damper of the frame of the sawing frame, comprising a body, an equilibrium mass mounted on the elastic elements with the body mounted on the guides with sliders 2.

The disadvantages of the known devices are low reliability of operation and difficult working conditions.

The purpose of the invention is to increase the reliability of the quencher and improve working conditions.

This is achieved by the fact that the elastic elements are made flexible in the longitudinal and transverse directions, the body is made with arcuate grooves in which rusks are located, and the elastic elements of the balancing mass are angular to each other, which are associated with the rusks.

FIG. 1 shows the vibration damper of the frame of the saw-frame, side view; in fig. 2 - the same absorber, top view.

The vibration damper of the frame 1 of the sawing frame includes a body 2 mounted in the body on the elastic elements 3 of the balancing mass 4 with 5 sliders 6 placed in the guides. The elastic elements 3 are made flexible in the longitudinal and transverse directions. The body is made with arcuate grooves 7, in which the crackers 8 are located. The elastic elements 9 of the balancing mass are made in the form of springs disposed at an angle to each other, which are associated with the crackers. The slider 6 is moved in the guides 5 with screws 10.

During operation of the sawmill frame, the inertia forces from unbalanced masses excite the oscillations of the frame 1 both in the transverse and in the longitudinal directions. Moreover, the oscillation frequency of the frame

in the transverse direction is equal to the frequency of rotation of the crankshaft of the frame, and the frequency of oscillation of the bed in the feed direction is twice the frequency of rotation of the knees of the laToro shaft. At the same time balancing

mass 4 oscillates in antiphase with oscillations of the bed. As a result, a restoring moment arises from the forces of elastic interaction of the mass 4 with the body 2 through the springs 9 and the elastic elements 3,

Claims (2)

reducing the oscillation of the bed. Adjusting the mass 4 to resonance is carried out as follows. Initially, the slide blocks are installed with the help of screws 10 in the middle position along the height of the guides 5. By moving the crackers 8 through the slots 7, the stiffness of the springs 9 is distributed along the axes of the OX and OS in accordance with the oscillation frequencies of the frame in these directions. Accurate adjustment of the mass 4 to the resonant frequency is carried out by moving the sliders up or down along the guides 5. The proposed damper effectively reduces oscillations of the frame of the sawing frame in both the transverse and longitudinal directions, thereby increasing the reliability of its operation, improving the conditions labor workers. DETAILED DESCRIPTION OF THE INVENTION The vibration damper of the frame of the saw-frame, comprising a body, a balance weight mounted on elastic elements with slides placed in the guides, is characterized in that, in order to increase the reliability of its work and improve working conditions, the elastic elements are made flexible in the longitudinal and transverse directions, the body is made with arcs of different grooves in which the crackers are open: the elastic elements of the balancing mass are made in the form of angled to each other springs that are associated with crackers. Sources of information taken into account in the examination 1. The author's certificate of the USSR Alb. 442916, cl. B 27B 3/12, 1974. 2. USSR author's certificate number 497128, cl. В 27В 3/12, 1976 (prototype).