CN1673558A

CN1673558A - Integrated one-way bearing and producing method

Info

Publication number: CN1673558A
Application number: CN 200410017262
Authority: CN
Inventors: 华如祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-25
Filing date: 2004-03-25
Publication date: 2005-09-28

Abstract

The integral unidirectional bearing is one combination of two bearings and has relatively large volume. The present invention features the sectional inner diameter of the outer ring, including one section with arc groove, one connected section with homogeneously distributed curves, each of which corresponds to one roller and has relatively small diameter in one end than in the other end; and the sectional outer diameter of the inner ring and including one section with arc groove and one connected section of circle. The manufacture process of the integral unidirectional bearing includes forming the outer ring with steel pipe through drawing teeth and extruding, and other steps. The present invention has the advantages of simple unidirectional stop structure, ball holder and roller holder with cap, compact structure, saving in steel material, etc.

Description

One unilateral bearing and manufacture method

Technical field

The present invention relates to the bearing means field.

Background technique

At present, the unilateral bearing kind is no lack of.For example, application number on August 27th, 03115457.3,2003 disclosed " magnetic force mechanism unilateral bearing "; The ZL patent No. on June 25th, 02243811.4,2003 was announced " unilateral bearing structure "; The ZL patent No. on October 23rd, 01276673.9,2002 was announced " the integral type unilateral bearing device of winder "; The ZL patent No. on September 25th, 00110543.4,2002 was announced " driven disk of non-return clutch with unidirectional bearing "; The ZL patent No. on May 8th, 01243035.8,2002 was announced " a kind of unilateral bearing ".These several Patent publish bearing be made as characteristic because of the requirement of operating conditions with one-way rotation, their structure is different, the pros and cons coexistence.The existing like product of the present invention is that two bearing pack are integrated, and every bearing is sent out not Wei different sense of rotation, and the shortcoming of this structure is that volume is big, the cost height, and the waste raw material, design proposal is unreasonable.

Summary of the invention

The present invention will provide the one unilateral bearing to related domain, and manufacture method.Owe rationally to solve original structural design, comprise unidirectional stop complexity, volume is big, cost is high, raw material consumes is big etc.Now in conjunction with the accompanying drawings, its feature is described as follows: the one unilateral bearing, this bearing is made up of outer ring, inner ring, steel ball, ball retainer with cover, roller cage with cover, spring, roller etc., it is characterized in that: the internal diameter segmentation of outer ring 1 is provided with, wherein one section is provided with arc raceway groove 9, one connected section is provided with curved section 10, curved section is even distribution, the corresponding roller 7 of every pitch curve section, the curved section joint number is corresponding with roller cage 5 space-numbers with cover, and an end of every pitch curve section is little apart from the radius in the center of circle than the other end.When the bearing that assembles during to the rotation of direction, roller is in which the end space bigger place far away from the center of circle under the effect of friction, and roller is dead by folder, thereby bearing can rotate.When bearing was reverse, roller tended to from the center of circle closely that end motion until dead by folder under the thrust of friction and spring, thereby bearing stop.The also segmentation setting of the external diameter of described inner ring 2, wherein one section is provided with ditch arc 13, and one connected section is corner cut 14 for circle at the external diameter two ends of inner ring.

Be respectively equipped with steel ball 3, ball retainer 4 with cover, roller cage with cover 5, spring 6, roller 7 between the arc raceway groove 9 of the outer ring 1 of described one unilateral bearing and the raceway groove 13 of inner ring 2.

Every joint of the ball retainer 4 with cover of described one unilateral bearing is equipped with disjunctor arc piece 8.

One unilateral bearing manufacture method, this manufacture method be characterised in that the curved section 10 1 of the internal diameter of outer ring 1 be select for use whole steel pipe directly " drawing tooth " be shaped the manufacturing procedure of size blanking in accordance with regulations then; The 2nd, earlier with steel pipe size blanking in accordance with regulations, and then the operation of extrusion moulding.

Advantage of the present invention is that unidirectional chocking construction is simple, and ball retainer and roller cage are all with cover, and " lid " and " frame " are fused, and makes the bearing integral compact structure.Overall volume is little, and relative cost is low, reduces cost 30% approximately, saves steel about 50%.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Fig. 2 is the structural representation that the present invention unloads ball retainer with cover.

Fig. 3 is a ball retainer structural representation with cover;

Fig. 4 is the left view of Fig. 3;

Fig. 5 is a single-unit ball retainer with cover enlarged diagram;

Fig. 6 is that the A-A of Fig. 5 analyses and observe enlarged diagram.

Fig. 7 is the outer ring structure schematic representation;

Fig. 8 is the B-B sectional view of Fig. 7;

Fig. 9 is that the C of Fig. 7 is to enlarged diagram.

Figure 10 is a roller cage structural representation with cover;

Figure 11 is the left view of Figure 10;

Figure 12 is interior coil structures enlarged diagram.

The sequence number of above accompanying drawing and title: 1, outer ring, 2, inner ring, 3, steel ball, 4, ball retainer with cover, 5, roller cage with cover, 6, spring, 7, roller, 8, disjunctor arc piece, 9, the arc raceway groove, 10, curved section, 11, interior circular arc, 12, external arc, 13, the ditch arc, 14, corner cut.

Embodiment

Mode of execution is example to install, to use.During the bearing rotation, the roller that roller cage with cover is put toward the bigger direction rotation of radius, promptly rotates apart from the big end of center of circle radius to curved section under the effect of friction.When bearing reverses, under the effect of friction and spring, to the less end rotation of radius, promptly by stop.Spring is that the effect played is a roller when the less end application of force of curved section radius, avoids roller unsettled, prevents that stop is not in place.

One unilateral bearing assembly method

(1) inner ring, outer ring, steel ball

According to the requirement of bearing end-play, select the diameter dimension of rational inner ring ditch arc, outer ring arc raceway diameter size, ball size

The steel ball size size of bearing end-play=outer ring arc raceway diameter size-inner ring ditch arc dia size-2 times

(2) lid ball retainer

Evenly separately by inner ring ditch arc, the steel ball that outer ring arc raceway groove surrounds falls into the disjunctor arc piece the inside of ball retainer with cover to steel ball, and then firmly one presses.

(3) grease

The bearing that installs ball retainer with cover is carried out demagnetizing and cleaning, and requirement in accordance with regulations adds the grease of the corresponding trade mark and weight then.

(4) with roller, the spring roller cage with cover of packing into.

Add an amount of grease earlier in roller cage with cover, then with roller, spring is adorned in the roller cage with cover one by one.

(5) adorn roller cage with cover

To comprise roller, the roller cage with cover of spring adds to pack into and installs ball retainer with cover and having added in the bearing of grease.Should make roller cage with cover and outer ring that relative rotation is arranged during assembling, and firmly, roller be moved downwards under the effect of friction toward the outer ring curved section from center of circle larger distance.

The installation of bearing and use

Unit bore system is adopted in the selection of axle, and unit shaft system is adopted in the selection in hole.

Bearing is please recognized face by the sense of rotation that indicates on the bearing and is installed in assembly process.

Claims

1, one unilateral bearing, this bearing is made up of outer ring, inner ring, steel ball, ball retainer with cover, roller cage with cover, spring, roller etc., it is characterized in that:

A) the internal diameter segmentation of outer ring (1) is provided with, wherein one section is provided with arc raceway groove (9), one connected section is provided with curved section (10), curved section is even distribution, the corresponding roller (7) of every pitch curve section, the curved section joint number is corresponding with roller cage with cover (5) space-number, and an end of every pitch curve section is little apart from the radius in the center of circle than the other end;

B) the also segmentation setting of external diameter of inner ring (2), wherein one section is provided with ditch arc (13), and one connected section is corner cut (14) for circle at the external diameter two ends of inner ring.

2, one unilateral bearing as claimed in claim 1 is characterized in that being respectively equipped with steel ball (3), ball retainer with cover (4), roller cage with cover (5), spring (6), roller (7) between the raceway groove (13) of the arc raceway groove (9) of outer ring (1) and inner ring (2).

3, one unilateral bearing as claimed in claim 1 is characterized in that every joint of ball retainer with cover (4) is equipped with disjunctor arc piece (8).

4, one unilateral bearing manufacture method, this manufacture method are characterised in that the curved section (10) the one of the internal diameter of outer ring (1), select for use whole steel pipe directly " drawing tooth " be shaped the manufacturing procedure of size blanking in accordance with regulations then; The 2nd, earlier with steel pipe size blanking in accordance with regulations, and then the operation of extrusion moulding.