CN1114015A

CN1114015A - Rotating shaft centering device

Info

Publication number: CN1114015A
Application number: CN 94106114
Authority: CN
Inventors: 徐光第; 渠仁书
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-05-26
Filing date: 1994-05-26
Publication date: 1995-12-27

Abstract

The rotating shaft centering device consists of a conical surface centering cone arranged on a rotating shaft and a conical surface centering ring arranged on a fixed base. The matching conical surfaces of the centering cone and the centering ring are attached by the dead weight of the pressure spring or the rotating shaft. The radial bearing is matched with the radial bearing for use, and the problem of spacious movement of the axle center after the radial bearing is worn is solved. Is characterized in that the binding surfaces of the centering cone and the centering ring are conical surfaces. The advantage is that the centering operation of the rotating shaft can be realized, and the centering device can be used for machinery with durable centering of the rotating shaft or for replacing a thrust bearing.

Description

Gyro shaft centralizer

This patent belongs to Machine Design manufacturing technology field.

Now all do not have the constant centering function in constraint axle center with sliding bearing and rolling bearing, after the bearing wear, the axle center just can spaciously be moved, and influences machine performance.

The purpose of this patent be create a kind of can be from the constant gyro shaft centralizer in moving constraint axle center.

The gyro shaft centralizer structure is shown in accompanying drawing 1,2.The conical surface in the rotating shaft is sought heart awl [1], [5], [7], [8] and the conical surface centering ring [2], [6] that are loaded on the fixing support are formed by being loaded on for it.The conical surface is sought [7], [8] that heart awl can be made [1], [5] or the bipyramid face of single conical surface; The conical surface is sought [5], [8] that heart awl can be made [1], [7] or the concave cone face of convex cone face.Conical surface centering ring correspondingly can be made [2] of concave cone face or [6] of convex cone face.Conical surface centering ring is made single conical surface.Two conical surfaces are sought heart awl (Fig. 1 a, b) and are loaded on the axle with feather key; Pressure spring [3] is housed therebetween; Pressure spring [3] (Fig. 2 a, b) perhaps is housed in conical surface centering ring both sides.For vertical shaft (Fig. 2 c, d), the conical surface is sought heart awl [1], [5], [7], [8] and is fixed on the axle by the shaft shoulder and key or back-up ring and key or Cock screw.

During machine run, rotating shaft is rotated in radial bearing [4]; Also drive simultaneously and seek the commentaries on classics of heart coning.Connect with rotating shaft with feather key because two seek heart awl (Fig. 1 a, b), can move along axis; Owing to two pressure springs of seeking between heart awl, perhaps the pressure spring of centering ring both sides often forces together seeking heart awl and centering ring, and the two is fitted, and can in time eliminate and seek the gap that the heart is bored, the centering ring faying surface weares and teares and forms again.Because the axle center with the kinematic pair of cone match can not change; So this patent can be constant from the moving constraint rotating shaft core.For vertical shaft, seek the applying of heart awl and centering ring and eliminate the gap that produces of wearing and tearing therebetween and work by the rotating shaft deadweight.

The advantage of this patent is: in service in the machine life-cycle, and can be constant all the time from the moving constraint rotating shaft core.

Fig. 1 shows two kinds of horizontal-vertical double-purpose gyro shaft centralizer structure principle charts.Fig. 2 shows four kinds of vertical shaft centralizer structure principle charts.Among the figure: the protruding single conical surface of 1-is sought heart awl; The recessed single conical surface centering ring of 2-; The 3-pressure spring; The 4-radial bearing; The recessed single conical surface of 5-is sought heart awl; The protruding single conical surface centering ring of 6-; The 7-biconvex conical surface is sought heart awl; The 8-concave-concave conical surface is sought heart awl.

The optimum structure of gyro shaft centralizer and parameter: seek heart awl and be advisable with the high tenacity high hardness material; The convex cone face is for well.Centering ring is advisable with the low coefficient of friction high-abrasive material; The concave cone face is for well.Seek to have between heart awl and centering ring lubricated.Seek heart awl, centering ring the two one of, the radial tank that stores lubricator is arranged on the faying surface of the two.The face angle α that seeks heart awl and centering ring between 10 °～15 ° for well.

Gyro shaft centralizer can be used for all and requires rotating shaft to change the constant mechanically various or replacement slide thrust bearing of the heart.

Claims

1, a kind of gyro shaft centralizer is characterized in that: a, be loaded on the conical surface in the rotating shaft and seek heart awl and be loaded on conical surface centering ring on the fixing support, b, the conical surface are sought heart awl and conical surface centering ring depended on pressure spring or rotating shaft deadweight applying.

2, gyro shaft centralizer according to claim 1 is characterized in that: the conical surface is sought heart awl and is single conical surface or bipyramid face, and the conical surface is sought heart awl and is convex cone face or concave cone face, and the conical surface is sought heart awl and is loaded on the axle by feather key or the shaft shoulder and key or back-up ring and key or Cock screw.

3, gyro shaft centralizer according to claim 1 is characterized in that: conical surface centering ring is single conical surface, and conical surface centering ring is convex cone face or concave cone face.

4, gyro shaft centralizer according to claim 1 is characterized in that: the conical surface seek heart awl and conical surface centering ring the two one of, on the faying surface of the two, radial tank is arranged.