SU1495397A1 - Socket for spindle of spinning and twisting machines - Google Patents

Abstract

The bearing sleeve (6) of the spindle-bearing housing provided with an elastic intermediate tube (3) is made elastic in the longitudinal direction by means of a milled-out portion (9) in the form of a helical groove. In order to achieve optimum springing and damping properties during the running of the spindle, spirally wound damping means (5, 11) are arranged both between the bearing sleeve and the intermediate tube in the region of the foot bearing (8) and between the outer casing (1) of the bearing housing and the intermediate tube. <IMAGE>

Description

The invention relates to the textile industry and relates to the spindle nest of spinning and twisting machines.

The nest of the spindle of spinning and twisting machines is known, it contains an elastic intermediate tube, installed in the housing in the section from the upper subeupnik to the spindle bolster and rigidly connected to the housing with its lower part, bearing sleeve, pressed in the upper part into the intermediate tube and made at least at least in the area of the bearing elastic, and damping coil placed in the end of the gap between the intermediate tube and the body in its upper part (Germany application No. 2063254, class 76, 25, 1971).

The disadvantage of this nest is that its design does not provide optimal conditions for the spindle to work at the required rotational speed and under heavy loads due to unbalance of the package installed on it.

The purpose of the invention is to improve the dynamic qualities of the spindle.

t This goal is achieved by the fact that

the spindle socket additionally has a damping coil, and between the intermediate tube and the bearing sleeve in their lower part an annular gap is formed, with the latter. It has a damping coil. The drawing shows the spindle socket, a longitudinal section.

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The spindle nest includes a housing 1 with a thread 2 for connecting it to the rotor bar of the machine and an elastic intermediate tube 3 installed in the housing 1 in the section from the upper bearing 7 to the subframe: 8 and rigidly connected to the case with its lower part of a larger diameter. Inside the tube 3 is placed bearing; the sleeve 6, pressed into the upper part into the tube 3 and made at least to the least extent in the area of the bearing 7, is elastic due to the spiral slot 9 on it.

Between the sleeve 6 and the housing 1 in its upper part and between the tube 3 and the sleeve 6 in their lower part there are formed annular gaps 4 and 0 that do not communicate with each other, in which the damping coils 5 and 11 are placed.

In the upper part of the housing I, there is a cup-shaped cavity 12, closed with a cap 13 for oil-tight housing and providing oil placement for damping the bearing 7 and limiting the deflection of the sleeve 6 to the size of the gap 14.

During the rotation of the spindle installed in the sub-holder 7 and the sub-head 8 of the spindle during operation, the oscillation of the spindle is extinguished first by the elastic sleeve 6 and then by the damping spiral 1I. The damping coil 5, independent of this, takes up the force on the upper bearing 7. The intermediate tube 3 provides independent damping in the area of the bolster 8 and the bearing 7 without the need to: increase the diameter of the housing 1

spindle nests.

The proposed design allows optimal alignment of the elasticity and damped capacity of the bearing and subframe. At the same time, the ratio of the elasticity and damping coefficient of the bushing to the elasticity and damping coefficients of the upper bearing should be I: 30 - 1:60. The spindle nest allows improving its dynamic qualities and significantly reducing the forces acting on the upper bearing and extending from it to the spindle timber vibration and noise.

Claims (1)

Invention Formula Spindle nest of spinning and twisting machines, containing an elastic intermediate tube, installed in the housing from the upper bearing to the spindle bolster and rigidly connected to the housing with its lower part, bearing inlet, pressed in the upper part into the intermediate pipe and made at least the bearing area is elastic, and the damping coil is placed in the annular gap between the intermediate tube and the housing In its upper part, characterized in that, in order to improve the dynamic quality spindle, it additionally has a damping coil, and between the intermediate tube and the bearing sleeve at their lower part an annular gap, wherein the latter is set damping spiral.