CN201866093U

CN201866093U - Two-half bearing

Info

Publication number: CN201866093U
Application number: CN201020643771XU
Authority: CN
Inventors: 薛永杰; 李志龙; 江波; 郑永生; 吴广河
Original assignee: Qingdao Port Group Co Ltd
Current assignee: Qingdao Port Group Co Ltd
Priority date: 2010-11-24
Filing date: 2010-11-24
Publication date: 2011-06-15
Anticipated expiration: 2020-11-24

Abstract

The utility model provides a two-half bearing which can solve the problems of the prior art that the detachment and installation are extremely inconvenient, and the duration is long when a bearing is used for large equipment. The two-half bearing comprises an inner ring, an outer ring, and a holder which is arranged between the inner ring and the outer ring; a rolling body is arranged on the holder; the inner ring, the outer ring and the holder respectively comprise two half bodies which are involuted; and the parts at which the two half bodies on the inner ring and the outer ring are involuted are respectively fastened by bolts. The two-half bearing is fastened and formed by the bolts; when the two-half bearing is detached or installed, parts on both sides of the bearing do not need to be detached and installed but only the bolts need to be operated, so that the use is simple and convenient, the operation time is greatly reduced, the labor intensity is reduced, and valuable time is won for the production. In addition, the two-half bearing can be cut from an original whole-circle bearing, so that the original size does not need to be changed, the service life of the original bearing is not affected, and accessible replacement can be realized.

Description

Two halves formula bearing

Technical field

The utility model relates to a kind of bearing, specifically, relates to a kind of two halves formula bearing that is removed and installed fast by realizing of connecting and composing of two-part halfbody bearing.

Background technique

Bearing is a mechanical field fixed member commonly used, and it is of a great variety, can be divided into sliding friction bearing (abbreviation sliding bearing) and rolling friction bearing (abbreviation rolling bearing) two big classes by the frictional property difference of its work.Selfaligning roller bearing can bear radial load because of it in the rolling bearing, also can bear simultaneously the thrust load of either direction, be specially adapted to work under heavy duty or the oscillating load, and have good aligning performance and be widely used, selfaligning roller bearing is to be between the outer ring of sphere at inner ring that two raceways are arranged and raceway, is assembling the bearing of barrel shaped roller on the retainer.

With the selfaligning roller bearing is example, and in the prior art, selfaligning roller bearing is a completely circular structure, need overlap during use and install on the live axle, then when needs dismounting maintenance or replacement, the parts that at least one side of bearing connects must be dismantled, and bearing could be unloaded down from an end of live axle.In harbour and mining machinery field, bearing is mainly used in and connects some main equipments, so remove and install very inconvenience, consuming time very long, have a strong impact on the ordinary production of enterprise, is respectively speed reducer and bucket wheel body as balance shaft type bucket wheel material taking machine because of the parts that big trunnion shaft spring bearing both sides connect, so need repairing or when replacing when bearing goes wrong, the used time is a week at least, half wheat harvesting period at most, have a strong impact on coal, ore harbour harbour and mine operation, cause for the management and production of above-mentioned enterprise and have a strong impact on.

Summary of the invention

The utility model provides a kind of two halves formula bearing, can solve and remove and install very inconvenience, the problem of length consuming time when bearing that prior art exists is used for main equipment.

For reaching the purpose that solves the problems of the technologies described above, the utility model is achieved by the following technical solutions:

A kind of two halves formula bearing, comprise the retainer between inner ring, outer ring and inner ring and the outer ring, on the described retainer rolling element is installed, described inner ring, outer ring and retainer are by the involutory formation of halved body, and the halved body apposition position of inner ring and outer ring is respectively by bolton.

In the technical solution of the utility model, also have following additional technical feature:

The outer round surface two ends of the first halfbody inner ring of described inner ring all have and are used to prevent that described rolling element from moving axially the inner ring rib that deflects away from raceway, and described bolt is positioned at described inner ring rib place.

Described inner ring rib place, two ends is equipped with two bolts.

The bolt of the halved body apposition position of described outer ring is positioned at the neutral position of outer ring outer surface width direction.

Described bolt is a high-strength bolt.

Compared with prior art, advantage of the present utility model and good effect are:

1, the utility model two halves formula bearing adopts bolton to constitute by two-part halfbody bearing, needn't remove and install the parts of bearing both sides when removing and installing, and only needs operating screw to get final product, simple and convenient, greatly reduced the operating time, reduced labor intensity, for production tries to gain time precious to one.

2, the utility model two halves formula bearing is by unidimensional being processed to form of original full circle bearing, bolt is located on the structure that bearing itself had, as the inner ring rib on the selfaligning roller bearing inner ring, do not need to change former bearing virtually any size, can not influence the working life of former bearing, can realize accessible replacement.

Description of drawings

Fig. 1 is the structure sectional view of the utility model two halves formula bearing;

Fig. 2 is the structural representation of inner ring in the utility model;

Fig. 3 is an A cut-away section structure enlarged view among Fig. 2;

Fig. 4 is the structural representation of outer ring in the utility model;

Fig. 5 is a B part-structure enlarged view among Fig. 4;

Wherein: 1, inner ring; 11, the first halfbody inner ring; 12, the second halfbody inner ring; 2, outer ring; 21, the first halfbody outer ring; 22, the second halfbody outer ring; 23, oil duct; 3, retainer; 4, rolling element; 5, bolt; 6, inner ring rib; 7, bolt is installed notch.

Embodiment

For the purpose, technological scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.

With reference to shown in Figure 1, present embodiment two halves formula bearing, comprise the retainer 3 between inner ring 1, outer ring 2 and inner ring 1 and the outer ring 2, rolling element 4 is installed on the retainer 3, inner ring 1 is by the first halfbody inner ring 11 and the second halfbody inner ring 12 is involutory constitutes, and apposition position is fastening by bolt 5, and outer ring 2 is by the first halfbody outer ring 21 and the second halfbody outer ring 22 is involutory constitutes, apposition position is also fastening by bolt 5, and retainer 3 also is by the involutory structure of halved body.That is to say, present embodiment two halves formula bearing integral is to constitute a complete round bearing by the incomplete bearing amalgamation of two-part, then when dismounting, needn't dismantle the parts that any side of bearing connects, only need disassemble bolt fastener, two-part bearing are taken off to get final product respectively.

For guaranteeing bolted intensity and tightness, bolt 5 is a high-strength bolt.Plain bolt is to be made by the Q235 steel, and intensity is lower, and high-strength bolt is by the high tensile steel manufacturing, and common used material has 35VB, 20MnTiB, 35CrMoA etc., heat-treats after making, and has improved intensity.

Present embodiment two halves formula bearing does not need to change former bearing virtually any size for by unidimensional being processed to form of original full circle bearing, and easy to process, cost is low.For example, when processing two halves formula selfaligning roller bearing, have on its inner ring 1 and be used to prevent that rolling element 4 from moving axially two inner ring ribs 6 that deflect away from raceway, with reference to Fig. 2 and shown in Figure 3, when by the unidimensional processing halved body of original full circle bearing bearing, two inner ring ribs 6 are positioned on the outer round surface of the first halfbody inner ring 11, and the position symmetry, form bolt notch 7 is installed, bolt 5 is installed in bolt installation notch 7 places on the inner ring rib 6.Bolt is installed notch 7 and is in the outer position of inner ring rib on the inner ring 16, does not destroy the internal surface of inner ring rib 6, then at rolling element 4 when raceway rolls, can not influence the normal rolling of rolling element 4.

Because the rolling element 4 on the retainer 3 is to be embedded between raceway on the outer round surface of inner ring 1 and the raceway on 2 internal circular surfaces of outer ring to roll, the halved body retainer is installed after the contraposition because the restriction of raceway, can guarantee the connection of halved body retainer effectively, then the halved body retainer can connect without bolt.

Based on technique scheme, optionally, for enhancing is fastenedly connected intensity, bolt is installed notch 7 places and is equipped with two bolts 5 on the two ends inner ring rib 6.

With reference to Fig. 4 and shown in Figure 5, in the present embodiment, the bolt 5 of the halved body apposition position on the outer ring 2 is positioned at the neutral position of outer ring outer surface width direction, as the oil hole position on the oil duct 23 on the first halfbody outer ring 21, bolt 5 is along oil duct 23 tangential fastening location, present embodiment two halves formula Bearing Installation is when the bearing support, and outer ring 2 compresses the location by bearing support.

The above, it only is preferred embodiment of the present utility model, be not to be the restriction of the utility model being made other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection domain of technical solutions of the utility model according to technical spirit of the present utility model.

Claims

1. two halves formula bearing, comprise the retainer between inner ring, outer ring and inner ring and the outer ring, on the described retainer rolling element is installed, it is characterized in that: described inner ring, outer ring and retainer are by the involutory formation of halved body, and the halved body apposition position of inner ring and outer ring is respectively by bolton.

2. two halves formula bearing according to claim 1 is characterized in that: the outer round surface two ends of the first halfbody inner ring of described inner ring all have and are used to prevent that described rolling element from moving axially the inner ring rib that deflects away from raceway, and described bolt is positioned at described inner ring rib place.

3. two halves formula bearing according to claim 2 is characterized in that: the described inner ring rib in two ends place is equipped with two bolts.

4. two halves formula bearing according to claim 1 is characterized in that: the bolt of the halved body apposition position of described outer ring is positioned at the neutral position of outer ring outer surface width direction.

5. according to each described two halves formula bearing in the claim 1 to 4, it is characterized in that: described bolt is a high-strength bolt.