CN101846132A

CN101846132A - Hybrid bearing and assembling method thereof

Info

Publication number: CN101846132A
Application number: CN 201010193818
Authority: CN
Inventors: 潘旭华
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-06-03
Filing date: 2010-06-03
Publication date: 2010-09-29

Abstract

The invention belongs to the machining class, in particular to a hybrid bearing and an assembling method thereof. The hybrid bearing is characterized in that: a bearing shell is divided into an upper half shell and a lower half shell, the upper half shell and the lower half shell are stuck together by adhesive, the upper half shell and an inner bearing ring are stuck together by adhesive, and the lower half shell and the inner bearing ring are stuck together by adhesive. In the process of assembly, the bearing shell is machined into the upper half shell and the lower half shell, the inner bearing ring is floated on a shell, the adhesive is uniformly applied on the stuck joint between the lower half shell and the inner bearing ring of the bearing, the shaft and the shaft and inner bearing ring assembly is put on the lower half shell of the bearing, the adhesive is applied at a corresponding position on the upper half shell of the bearing, the upper half shell and the lower half shell of the bearing are then stuck together, and after the adhesive is solidified, the shaft and the bearing shell are dismounted from a base, so that the assembly of the hybrid bearing is finished. Since the adhesive is directly applied between the upper half shell, the lower half shell and the inner bearing ring of the bearing, the gap between the upper and the lower half shells and the inner bearing ring is uniformly filled up with the adhesive, and thereby the rigidity of the bearing is greatly enhanced.

Description

A kind of dynamic and hydrostatic bearing and assembly method thereof

Technical field

The invention belongs to field of mechanical manufacture technology, specifically is a kind of dynamic and hydrostatic bearing and assembly method thereof.

Background technique

Dynamic and hydrostatic bearing is the bearing that a kind of performance is good, the life-span is long, be applicable on the principle that high speed and ultra high speed support, but the depth width of the oil groove of the necessary symmetry of each oil pocket that requires the support two ends on the structure, each oil pocket must be consistent, and the center line of two support ends is necessary coaxial.In reality is made, have inevitable error owing to make assembling, the coaxality of the degree of symmetry of each oil groove and two support ends is difficult to accomplish sufficiently high precision, when bearing high speed or ultra high speed rotation, running shaft can produce vibration, makes the dynamic and hydrostatic bearing precision reduce.In order to overcome above-mentioned defective, the patent No. of my application is 200810060591.6 to have proposed a kind of assembly method of dynamic and hydrostatic bearing, adopt top withstanding at the axle two ends, load onto the bearing inner ring that processes, connect oil circuit, adhesive is injected in gap between bearing housing and bearing inner ring, solidify the back dismounting and finish the assembling of dynamic and hydrostatic bearing, thereby improve the precision of dynamic and hydrostatic bearing, but in actual processing and assembling process because adhesive injects, encircle in the filled bearing fully and bearing housing between the space, cause bonding strength not high, rigidity is bad.

Summary of the invention

The objective of the invention is deficiency at above-mentioned technology, provide a kind of more scientific and reasonable, precision is higher, the better dynamic and hydrostatic bearing of rigidity, and discloses its assembly method.

Technological scheme of the present invention is as follows:

A kind of dynamic and hydrostatic bearing, comprise bearing housing, bearing inner ring, the static pressure oil pocket is arranged in the endoporus of bearing inner ring, it is characterized in that: bearing housing is divided into upper half-shell and housing lower half, between upper half-shell and the housing lower half, between upper half-shell and the bearing inner ring, bonding by adhesive between housing lower half and the bearing inner ring.

A kind of assembly method of dynamic and hydrostatic bearing is characterized in that: bearing housing is processed into upper half-shell and housing lower half two-part, housing lower half is fixed on the pedestal; Process ring in the two bearings, bearing inner ring is contained on the axle, and connect the oil circuit of bearing inner ring endoporus, make the static-pressure system work between bearing inner ring and the axle, bearing inner ring floats on the axle, forms axle and bearing inner ring assembly; Adhesive is evenly coated in abutting edge between bearing housing lower half and bearing inner ring, axle and bearing inner ring assembly are placed on the bearing housing lower half, coat adhesive in bearing upper half-shell relevant position, bonding with the bearing housing lower half, after treating that adhesive solidifies, axle and bearing housing are pulled down from pedestal, promptly finished the assembling of dynamic and hydrostatic bearing.

The present invention is divided into two halves up and down with bearing housing, directly is coated with into adhesive between bearing upper half-shell, housing lower half and bearing inner ring, makes the space between housing lower half and the bearing inner ring evenly be full of adhesive, thereby has strengthened the rigidity of bearing greatly.With dynamic and hydrostatic bearing precision height, the good rigidly of assembly method assembling of the present invention, rational in infrastructure, shaft vibration is little.

Description of drawings

Fig. 1 is an assembly method schematic representation of the present invention.

Embodiment

As shown in Figure 1, a kind of dynamic and hydrostatic bearing, comprise bearing housing, bearing inner ring 4, in bearing inner ring 4 endoporus static pressure oil pocket 7 is arranged, it is characterized in that: bearing housing is divided into upper half-shell 5 and housing lower half 2, between upper half-shell 5 and the housing lower half 2, between upper half-shell 5 and the bearing inner ring 4, bonding by adhesive 6 between housing lower half 2 and the bearing inner ring 4.

A kind of assembly method of dynamic and hydrostatic bearing is characterized in that:

A, bearing housing is processed into upper half-shell 5 and housing lower half 2 two-part, housing lower half 2 is fixed on the pedestal 1;

B, process bearing inner ring 4, bearing inner ring 4 is contained on the axle 3, and connect the oil circuit of bearing inner ring 4 endoporus, make the static-pressure system work between bearing inner ring 4 and the axle 3, bearing inner ring 4 floats on the axle 3, forms axle and bearing inner ring assembly;

Adhesive 6 is evenly coated in C, the abutting edge between bearing housing lower half 2 and bearing inner ring 4, and axle 3 and bearing inner ring 4 assemblies are placed on the bearing housing lower half 2;

D, coat adhesive 6 in bearing upper half-shell 5 relevant positions, bonding with bearing housing lower half 2, treat that adhesive 6 solidifies after, axle 3 and bearing housing are pulled down from pedestal 1, promptly finished the assembling of dynamic and hydrostatic bearing.

Claims

1. dynamic and hydrostatic bearing, comprise bearing housing, bearing inner ring, the static pressure oil pocket is arranged in the bearing inner ring endoporus, it is characterized in that: bearing housing is divided into upper half-shell and housing lower half, between upper half-shell and the housing lower half, between upper half-shell and the bearing inner ring, bonding by adhesive between housing lower half and the bearing inner ring.

2. the assembly method of dynamic and hydrostatic bearing as claimed in claim 1 is characterized in that: bearing housing is processed into upper half-shell and housing lower half two-part, housing lower half is fixed on the pedestal; Process bearing inner ring, bearing inner ring is contained on the axle, and connect the oil circuit of bearing inner ring endoporus, make the static-pressure system work between bearing inner ring and the axle, bearing inner ring floats on the axle, forms axle and bearing inner ring assembly; Adhesive is evenly coated in abutting edge between bearing housing lower half and bearing inner ring, axle and bearing inner ring assembly are placed on the bearing housing lower half, coat adhesive in bearing upper half-shell relevant position, bonding with the bearing housing lower half, after treating that adhesive solidifies, axle and bearing housing are pulled down from pedestal, promptly finished the assembling of dynamic and hydrostatic bearing.