CN2071653U

CN2071653U - High-speed spinning spindle using elastic bearing

Info

Publication number: CN2071653U
Application number: CN 90207419
Authority: CN
Inventors: 杨正中; 周群
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-07-11
Filing date: 1990-07-11
Publication date: 1991-02-20

Abstract

The utility model relates to a high-speed spinning spindle using an elastic bearing. The utility model comprises a spindle rod disc, an upper bearing device, an upper bearing block, an elastic tube, a lower bearing, spindle feet, etc. The upper bearing device is provided with a roller bearing, a couple of upper and lower cover plates and a retainer. A bearing aligning mechanism is arranged in the upper bearing device, which is achieved via changing the bearing structure or adding the elastic components. The utility model has the advantages that the bearing abrasion is reduced, the spalling fatigue thereof is eliminated, the outer ring looseness thereof is obviously improved, the noise and the power consumption are reduced, the abnormal vibration is reduce, the end breakage rate is reduced, and the service life of the spindle is prolonged.

Description

High-speed spinning spindle using elastic bearing

The utility model relates to a kind of high-speed spinning spindle, especially relates to a kind of upper bearing (metal) and uses flexibly mounted high-speed spinning spindle.

China produces the D that uses at present ₁₂, D ₃₂The series spindle is that upper bearing (metal) is fixed, the lower bearing elastic support structure, and this supporting system can make spindle cross critical speed reposefully, to adapt to needs at a high speed.But this spindle can produce unusual vibration when turning round, and makes that spindle axis is not parallel fully moving, and often be swing state that in this case, will produce several shortcomings: (1) in the spindle blade upper bearing (metal), there is serious fatigue flake at its place, roller two ends; (2) there are friction in upper and lower end face of roller and cover plate place, make lubricated inoperative and cause strong wear; (3) because violent wearing and tearing cover plate, upper bearing (metal) outer shroud are become flexible, and the roller diameter diminish gradually, causes spindle to be scrapped fully; (4) noise, power consumption are big, during maintenance cost, take a lot of work.

The purpose of this utility model is by changing the structure or the supporting situation of upper bearing (metal), making upper bearing (metal) become an elastic bearing.

The utility model is the flexibly mounted high-speed spinning spindle of a kind of use, it comprises that a spindle shaft disk, has parts such as the upper bearing equipment of a roller bearing, a pair of upper and lower cover plate and a retainer, a top chock, an elastic tube, a lower support and a bolster, is provided with a bearing core-regulating mechanism in the described upper bearing equipment.

The utility model has the advantages that spindle blade can radially be freely swung in given range, reduced friction, the abrasion of bearing; Improved working condition, eliminated fatigue flake, thereby it is loosening obviously to have improved its outer shroud; Noise reduces more than 2 decibels than existing spindle, thereby can improve the environment in workshop; Reduced power consumption, the energy saving economy benefit is bigger; Reduce the amplitude of abnormal vibrations, made end breakage rate descend; The life-span of spindle can prolong 1 year at least.

Below in conjunction with accompanying drawing most preferred embodiment of the present utility model is described in detail, therefrom can sees the more advantage of the utility model.

Fig. 1 is the cutaway view of the utility model most preferred embodiment;

Fig. 2 is the cutaway view of the upper bearing equipment of the utility model second embodiment;

Fig. 3 is the cutaway view of the upper bearing equipment of the utility model the 3rd embodiment;

Fig. 4 is the cutaway view of the upper bearing equipment of the utility model the 4th embodiment.

Now referring to Fig. 1, the utility model comprises parts such as spindle shaft disk 1, upper bearing equipment 2, top chock 3, elastic tube 4, lower support 5 and bolster 6, upper bearing equipment 2 is made up of roller bearing 7, a pair of upper and lower cover plate 8,9 and retainer 10, and they all equally assemble according to existing spindle.But roller bearing 6 is with used slightly different, and roller 11 side faces of roller bearing 7 are convex surface, and the inner surface of its outer ring 12 is the concave curved surface that matches with roller 11 curved surfaces, and roller bearing 7 becomes a self-aligning bearing like this.

Certainly, if the side face of roller 11 is a convex surface, and the inner surface of outer ring 12 is the face of cylinder; Perhaps, the side face of roller 11 is the face of cylinder, and the inner surface of outer ring 12 is a convex surface, and these two kinds of situations can both satisfy the needs of aligning equally.

Now referring to Fig. 2, be second embodiment of the present utility model, upper bearing equipment 2 also comprises a pair of upper and lower elastic ring 13,14 that is coated on respectively on upper and lower cover plate 8,9 end faces and roller bearing 7 side faces, has some equally spaced axial notches 15 and has some radial grooves 16 at its end face at elastic ring 13,14 side faces.Elastic ring 13,14 the most handy oil resistant rubbers are made.Because elastic ring 13,14 has certain elasticity, can suitably be out of shape, therefore also have the effect of aligning, and it is better to have elastic ring 13,14 elasticity of groove 15,16.

Now referring to Fig. 3, be the 3rd embodiment of the present utility model, upper bearing equipment 2 also comprises the L shaped last lasso 18 of lasso 17 and cross section under the stairstepping.Following lasso 17 is enclosed within outside roller bearing 7 and the upper and lower cover plate 8,9 and the end face of lower cover 9 is resisted against down on the interior step surface of lasso 17.Last lasso 18 is arranged on the end face of upper cover plate 8, and the top periphery of following lasso 17 inwardly turnover is clamped lasso 18.Between the bottom of following lasso 17 and last lasso 18 and top chock 3, an

elastic ring

19,20 is housed respectively, makes down and leave certain clearance between lasso 17 and the top chock, thereby make the upper bearing equipment can aligning.The elastic ring 13,14 of upper bearing equipment 2 is identical among the used material of

elastic ring

19,20 and second embodiment.

Now referring to Fig. 4, be the 4th embodiment of the present utility model, upper bearing equipment 2 comprises a stairstepping lasso 21, and it is outer and make lower cover 9 end faces on step surface within it that lasso 21 is enclosed within roller bearing 7 and upper and lower cover plate 8,9.One elastic ring 22 is housed between lasso 21 bottoms and top chock 3, and top chock 3 top peripheries inwardly turnover are clamped elastic ring 22.The elastic ring 13,14 of upper bearing equipment 2 is identical among the material of elastic ring 22 and second embodiment.

In above-mentioned all embodiment, upper and lower cover plate 8,9 all available oil-containing materials are made, and can remain bearing 7 like this and be in lubricating status, reducing the wearing and tearing of bearing 7, and can need not refuel for a long time.

In the utility model, elastic tube 4 has also been done suitable improvement.Elastic tube 4 is made by the elastic thin-wall pipe, top chock 3 inwalls are made two stairsteppings big in the end and small in the middle, elastic tube 4 upper ends hang on the step surface on top chock 3 tops, and being shaped on some flanges can lean on mutually with another step surface of top chock 3 at the middle part of elastic tube 4.This elastic tube 4 processing are simple, good springiness.If axially have some kidney slots 23 on the side face of elastic tube 4, at this moment elasticity will be better.

Claims

1, the flexibly mounted high-speed spinning spindle of a kind of use, it comprises that a spindle shaft disk, has parts such as the upper bearing equipment of a roller bearing, a pair of upper and lower cover plate and a retainer, a top chock, an elastic tube, a lower support and a bolster, it is characterized in that, be provided with a bearing core-regulating mechanism in the described upper bearing equipment.

2, high-speed spinning spindle as claimed in claim 1 is characterized in that, described bearing core-regulating mechanism is that to be convex surface and inner surface be the self-aligning bearing of the concave curved surface that matches with described roller curved surface to its roller side face.

3, high-speed spinning spindle as claimed in claim 1 is characterized in that, described bearing core-regulating mechanism is that its inner surface is the self-aligning bearing of convex surface.

4, high-speed spinning spindle as claimed in claim 1 is characterized in that, described bearing core-regulating mechanism is the self-aligning bearing that its roller side face is a convex surface.

5, high-speed spinning spindle as claimed in claim 1 is characterized in that, described bearing core-regulating mechanism is a pair of upper and lower elastic ring that is coated on described upper and lower cover plate end face and the described roller bearing side face.

6, high-speed spinning spindle as claimed in claim 1 is characterized in that, described elastic ring side face has some equally spaced axial notches and its end face has radial groove.

7, high-speed spinning spindle as claimed in claim 1, it is characterized in that, described bearing core-regulating mechanism comprise a stairstepping trap the circle and a cross section be L shaped last lasso, the described snare of trapping is outside described roller bearing and described upper and lower cover plate and make described lower cover end face on step surface within it, the described lasso of going up is arranged on the described upper cover plate end face and by described lasso top down and fixes, the bottom of described lasso down and described on an elastic ring is housed between lasso and the described top chock respectively.

8, high-speed spinning spindle as claimed in claim 1, it is characterized in that, described bearing core-regulating mechanism also comprises a stairstepping lasso, it is outer and make described lower cover end face on step surface within it that described lasso is enclosed within described roller bearing and described upper and lower cover plate, between the bottom of described lasso and described top chock an elastic ring is housed and is fixed by described top chock top.

9, as any one described high-speed spinning spindle in the claim 1 to 8, it is characterized in that, described elastic tube is made by the elastic thin-wall pipe, described top chock inwall is made stairstepping, described elastic tube upper end hangs on the step surface on described top chock top, and some flanges are made at its middle part and another step surface of described top chock matches.

10, high-speed spinning spindle as claimed in claim 9 is characterized in that, axially has some grooves on the described elastic tube side face.

11, as any one described high-speed spinning spindle in the claim 1 to 8, it is characterized in that described upper and lower cover plate is made by the oil-containing material.