CN2379642Y

CN2379642Y - Combination and clearance adjustable type roller bearing

Info

Publication number: CN2379642Y
Application number: CN 99209791
Authority: CN
Inventors: 周海宝
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-02
Filing date: 1999-06-02
Publication date: 2000-05-24
Anticipated expiration: 2009-06-02

Abstract

The utility model discloses a combined type rolling bearing with an adjustable clearance, which is composed of a rolling body, an inner ring, an outer ring with outer threads, an outer ring with inner threads and an adjustable washer group. The outer ring with outer threads is connected with the outer ring with inner threads by matched threads; the adjustable washer group is arranged between the outer ring with outer threads and the outer ring with inner threads. The utility model which has the advantages of easy fabrication, convenient assembly and maintenance, etc., can improve force situation of a bearing, can reduce bearing component kinds, and can be used for various technical fields of machine manufacture.

Description

Combined type is adjustable play rolling bearing

The utility model relates to a kind of rolling bearing, and is especially relevant with adjustable play rolling bearing.

Rolling bearing is widely used in the production practices, and because of its accuracy of manufacturing requires high, complex technical process, the rolling bearing of standard all adopts special plane processing at present, and is made by professional factory.Because existing design is not considered adjustable link between these hard parts such as the inner ring of bearing, outer ring, rolling element, make bearing important precision index---radial internal clearance guarantees by allowance for finish entirely.Like this, even adopt high-precision lathe to come the part of machining bearing,, also be difficult to and meet the requirements of precision with the mode of direct assembling owing to be subjected to the influence of inevitable accumulated error.Generally all to select, assemble with classified group assembly method, but still precision be limited, make holding at high price of high-precision bearing by measuring.Simultaneously the play that causes because of wearing and tearing of bearing is overproof also can't compensate, and reduced its actual life, causes waste.

The purpose of this utility model provides a kind of novel structure, long service life, the adjustable play rolling bearing of the highi degree of accuracy combined type that can process on the general precision lathe.

For achieving the above object, technical solution of the present utility model is such: this combined type is adjustable play rolling bearing is by rolling element, inner ring, band outside thread outer ring, band internal thread outer ring and adjustment washer sets are formed, band outside thread outer ring adopts screw-thread fit to connect with band internal thread outer ring, adjusts washer sets and places between band outside thread outer ring and the band internal thread outer ring.

The adjustment washer sets of described combined type is adjustable play rolling bearing is made up of the some different packing rings of thickness, and wherein a slice can be elastic washer.

Described combined type is adjustable, and play rolling bearing rolling element is abound with along raceway, and retainer is not set, and raceway is totally two row.

The utility model is owing to adopted above-mentioned technical solution, thereby have a following beneficial effect: the one, easy to manufacture: because adjustable link in the middle of having had---adjust washer sets, the processing dimension tolerance of part can be relaxed greatly, also reduced requirement simultaneously machine tool accuracy; The 2nd, easy to assembly: the outer ring make split type after, the radial internal clearance that can adjust bearing easily need not adopt classified group assembly method can reach higher precision to ideal value; The 3rd, improve force-bearing situation: adopt the biserial rolling element can increase bearing capacity, and can bear bi-directional axial power; The 4th, reduce the part kind: the outer ring make split type after, rolling element is abound with on raceway.Can save retainer like this, can also reduce operation, improve bearing capacity, be to achieve many things at one stroke; The 5th, easy to maintenance: as when bearing causes play overproof because of wearing and tearing, only to need suitably to reduce the thickness of adjusting washer sets, just can recover original precision, correspondingly prolonged the working life of bearing.

Embodiment to the adjustable play rolling bearing of the utility model combined type is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is the structural representation of the adjustable play rolling bearing of the utility model combined type.

Fig. 2 is the schematic representation that the adjustable play rolling bearing of the utility model combined type is adjusted washer sets.

As shown in Figure 1, combined type is adjustable play rolling bearing is by band outside thread outer ring 1, and washer sets 3 is adjusted in band internal thread outer ring 4, and rolling element 2 and inner ring 5 are formed.Band outside thread outer ring 1, band internal thread outer ring 4 is split type outer ring, is processed with outside thread on band outside thread outer ring 1, is processed with internal thread, accurate each other interworking on band internal thread outer ring 4.For guaranteeing the needs of outer ring intensity and locking thread, should adopt fine thread.Rolling element 2 is a steel ball, adopts biserial to arrange, radially is abound with, but need leaves enough gaps, reduces bearing efficient in order to avoid steel ball rubs mutually.Adjust washer sets 3 and formed (as shown in Figure 2), promptly adjust washer sets 3 and be provided with multiple thickness specification by the some different packing rings of thickness, so as to select to make up and wherein a slice can be elastic washer, in order to locking thread.For ease of assembling and adjustment, be provided with inclined-plane 8 at inner ring raceway 7 upper edge bearing biends, be provided with driving hole 6 at the two ends, outer ring.The radial internal clearance of adjusting bearing easily by the thickness of increase and decrease adjustment washer sets when assembling is combined into integral body with split type outer ring with scyewed joint at last to desired value.After bearing wear, only need suitably to reduce the thickness of adjusting washer sets, just can recover original precision, reach predetermined purpose.

Claims

1, the adjustable play rolling bearing of a kind of combined type, comprise rolling element (2), inner ring (5), it is characterized in that: it also comprises band outside thread outer ring (1), band internal thread outer ring (4) and adjustment washer sets (3), band outside thread outer ring (1) adopts screw-thread fit to connect with band internal thread outer ring (4), adjusts washer sets (3) and places between band outside thread outer ring (1) and the band internal thread outer ring (4).

2, the adjustable play rolling bearing of combined type according to claim 1 is characterized in that: adjust washer sets (3) and be made up of the some different packing rings of thickness, and wherein a slice can be elastic washer.

3, the adjustable play rolling bearing of combined type according to claim 1 and 2, it is characterized in that: rolling element (2) is abound with along raceway, and retainer is not set, and raceway (7) is totally two row.