TW201350695A - Rolling bearing - Google Patents

Abstract

The present invention relates to a rolling bearing including a ring body having a first rolling slot; two semi-ring bodies, in which each of the semi-ring bodies has a first side and an opposite second side, an inclined plane is formed at the first side of each semi-ring body, and a plurality of countersunk holes and threaded holes are distributed at the second side in an alternate manner. The first sides of the semi-ring bodies are mutually contacted, and the inclined planes together form a second rolling slot. The second rolling slot and the first rolling slot together form a rolling space. In addition, each of the countersunk holes of one of the semi-ring bodies is respectively communicated with each of the threaded holes of the other semi-ring body. A plurality of rollers are accommodated in the rolling space. A plurality of locking pieces are respectively screwed with each of the semi-ring bodies in each countersunk hole and each threaded hole. Thereby, assembly of the bearing can be completed by using two identical semi-ring bodies, for achieving the effects of reducing part and material inventory. And since the two semi-ring bodies have the same structure, the structure of the rolling bearing is symmetric.

Description

Rolling bearing

The invention relates to bearing construction, and in particular to a rolling bearing.

Pressing, bearing is a common rotating component in machinery. It is the main purpose of the bearing to be responsible for smooth rotation of the rotating component and proper support. Recalling the current assembly of rolling bearings, in order to allow the rolling elements (which can be spherical balls or cylindrical rollers) to be fitted into the bearing, one of the inner or outer rings of the bearing must be divided into two pieces. Forming two inner half rings or two outer half rings. When the bearing is assembled, the inner ring and one outer half ring (or outer ring and one inner half ring) are combined, and the rolling element is placed in the rolling groove, and the other outer half ring (or inner half ring) is The outer semi-rings are combined to close the opening of the roller. Next, to lock the outer outer half ring (or inner half ring), the outer outer half ring (or the inner half ring) has a combined hole, and the outer outer half ring (or the inner half ring) is locked by a bolt. However, as disclosed in Japanese Laid-Open Patent Publication No. 2003-4050A, Japanese Laid-Open No. JP-A-2000-291668A, and Japanese Laid-Open Publication No. JP-A-2000-161366A, the manner in which the two outer half rings are currently locked is that the combination bolts are locked from one side to the other side. This combination will be because the combination bolts are locked from one side to the other, so one of the two outer half rings (or inner half rings) accommodates all bolt heads and only has countersunk holes, while the other The half ring does not have the need to accommodate the head of the bolt and only has a threaded hole. The arrangement of the countersunk hole and the threaded hole causes the two outer half rings (or inner half rings) to be not interchangeable with each other, so that the parts are stocked and materials. Double inventory, which will cause economic burden and business risk for the increasingly difficult business environment; especially, the countersunk hole The diameter is much larger than the diameter of the threaded hole, which causes the outer half-ring (or inner half-ring) structure of all the counterbore holes to be removed due to the large amount of material removed, especially when subjected to external force or heat treatment. The structure is extremely easy to deform and affects the manufacturing quality of the bearing. In addition, due to the different combinations of the two outer half rings (or inner half rings), the physical properties such as structure and quality are different. In the precision mechanism, there are two pieces. Doubts about the structural asymmetry of the outer half ring (or inner half ring). Therefore, although the conventional rolling bearing has been used for many years, it still needs to be improved.

One of the objects of the present invention is to provide a rolling bearing which can complete the bearing assembly operation by using the same half ring in the same type of bearing assembly work, and achieve the effect of reducing the parts inventory and material inventory.

Another object of the present invention is to provide a rolling bearing having the same structure of the two halves to avoid the difference in the deformation of the half ring and affect the manufacturing quality of the bearing.

The third object of the present invention is to provide a rolling bearing that has the same structure and quality of the two halves, and avoids the doubt that the quality of the two half-ring structures is asymmetrical in a precise mechanism.

In order to achieve the foregoing object, a rolling bearing according to the present invention comprises a ring body having a first rolling groove; two half-rings each having a first side and a second side opposite to each other. a side surface, each of the half-rings forming a slope on the first side, and distributing a plurality of counterbores and a plurality of threaded holes on the second side; the first sides of each of the half-rings are in contact with each other, and the slopes are formed together a second rolling groove; the second rolling groove is shared with the first rolling groove Forming a rolling space; further, each of the counterbore holes of the one half ring body is respectively connected with each of the threaded holes of the other half ring body; a plurality of rolling elements are received in the rolling space; and a plurality of The locking hardware is screwed into each of the counterbore holes and each of the threaded holes.

Therefore, it is only necessary to use two identical half-rings to complete the assembly of the bearing, and it is not necessary to use different half-rings for bearing assembly as in the conventional technology, thereby achieving the effect of reducing the parts inventory and material inventory. Moreover, the two outer half rings (or inner half rings) have the same structure to avoid the difference in deformation and affect the manufacturing quality. However, since the two outer half rings (or inner half rings) have the same structure and quality, it is possible to avoid the problem of structural asymmetry of the two outer half rings (or inner half rings) in a precise mechanism.

In order to explain in detail the technical features of the present invention, the following preferred embodiments will be described with reference to the accompanying drawings, wherein: as shown in the first to third figures, the first preferred embodiment of the rolling bearing provided by the present invention For example, it mainly includes a ring body 11, a two-half ring body 12, a plurality of rolling elements 13 and a plurality of locks 14.

The ring body 11 is disposed on the inner side of the bearing (ie, the inner ring) and has a first rolling groove 111.

Each of the half-rings 12 is disposed on the outer side of the bearing (ie, the outer half-ring), and has a first side 121 and a second side 122. Each of the half-rings 12 forms a slope 123 on the first side 121. And each of the half rings 12 is in the second A plurality of counterbores 124 and a plurality of threaded holes 125 are disposed on the side 122. The plurality of counterbores 124 and the plurality of threaded holes 125 are distributed on the second side 122 of each of the half rings.

The first side 121 of each of the half-rings 12 is in contact with each other after the bearing assembly, and each of the inclined surfaces 123 forms a second rolling groove 126. The second rolling groove 126 and the first rolling groove 111 together form a rolling space 15 . In addition, each of the counterbore holes 124 of the half ring body 12 is in communication with each of the threads 125 of the other half ring body 12.

Each of the rolling elements 13 is housed in the rolling space 15. In general, the roller 13 is a ball or a roller, and the preferred embodiment is a roller.

Each of the fasteners 14 is exemplified by a bolt in the preferred embodiment. The lock in the embodiment is a stud bolt, one end is a bolt head 141 and the other end is a threaded portion 142. The head portion 141 abuts each of the half ring bodies 12 in each of the counterbore holes 124, and each of the threaded portions 142 is screwed to each of the threaded holes 125 of each of the half ring bodies 12.

It should be noted that, in the preferred embodiment, the number of the counterbore holes 124 is the same as the number of the screw holes 125. Of course, the number of the counterbore 124 and each of the threaded holes 125 may be different, but the excess counterbore 124 or the threaded hole 125 may adversely affect the strength of the half ring 12.

In addition, in the preferred embodiment, each of the counterbore holes 124 and each of the threaded holes 125 are alternately distributed on the half ring body 12. The term "alternate distribution" as used herein refers to each of the counterbore holes 124 and the respective threaded holes 125 of the same semi-annular body 12 as ... countersunk holes - threaded holes - countersunk holes - threaded holes, etc. Arrangement

Further, in the preferred embodiment, each of the counterbore holes 124 and each of the threaded holes 125 are alternately distributed at equal intervals in the half ring body 12. The so-called "equal spacing" means that the pitch diameters of the counterbore holes 124 and the threaded holes 125 are the same, and each of the counterbore holes 124 is spaced apart from the threaded holes 125 by the same distance.

The assembly method of the first preferred embodiment of the present invention is as follows. The ring body 11 is placed first, and then one of each of the half ring bodies 12 is placed (or sleeved) on the ring body 11 and placed in each of the rolling elements 13. Then, the other half ring body 12 is sleeved (or sleeved) on the ring body 11, and each of the counterbore holes 124 is connected with each of the threaded holes 125, and each of the locks 14 is respectively used in each of the blocks. The counterbore 124 and each of the threaded holes 125 are screwed into each of the half rings 12.

It is worth mentioning that each of the counterbore holes 124 and each of the threaded holes 125 are alternately distributed in the respective half-rings 12 at equal intervals. If N is the counterbore hole 124 and the number of holes of the threaded hole 125 is added, the half of the half ring body 12 is turned over and rotated 360/N degrees to reach each of the countersunk holes 124 corresponding to the threaded holes. 125 purpose.

The fourth figure is a second preferred embodiment of the present invention. The main difference from the first preferred embodiment is that the first preferred embodiment divides the outer ring into two half-rings 12, and the second preferred embodiment divides the inner ring into two half-rings. Body 16.

The fifth figure is a third preferred embodiment of the present invention. The difference from the first preferred embodiment is that each of the counterbore holes 124 and each of the threaded holes 125 are symmetrically distributed on the half ring body 12. Concentrating the counterbore holes 124 facilitates the locking of the fasteners 14. However, if N is the counterbore hole 124 and the number of holes of the screw hole 125 is added, the half ring body 12 needs to be turned over and rotated by 180 degrees, and each of the sinks The head hole 124 corresponds to each of the threaded holes 125, and cannot be rotated only 360/N degrees. Other parts of the assembly mode of the preferred embodiment are the same as those of the first preferred embodiment, and will not be described again.

However, if it is desired that each of the half-rings 12 is subjected to a force average, it is preferable that the counterbore holes 124 and the threaded holes 125 are symmetrically distributed on the half-ring body 12 at equal intervals, that is, the first The preferred embodiment and the second preferred embodiment are preferred.

Looking at the first preferred embodiment, the second preferred embodiment and the third preferred embodiment, the assembly of the bearing can be completed by using only the same half-ring 12 (or 16), compared to the prior art. Need to use different semi-rings for bearing assembly, can really achieve the effect of reducing parts inventory and material inventory. In particular, the first preferred embodiment and the second preferred embodiment, because the counterbore 124 on the half ring body 12 or the half ring body 16 and the screw holes 125 are symmetrically distributed at intervals, so that the two halves The ring body has the same structure to avoid the difference in deformation and affect the manufacturing quality. However, the half ring body 12 or the half ring body 16 of the present invention has the same structure and quality, and can avoid the problem of structural quality asymmetry in a precise mechanism.

11‧‧‧Act

111‧‧‧First rolling groove

12‧‧‧ half-ring

121‧‧‧ first side

122‧‧‧ second side

123‧‧‧Bevel

124‧‧‧ countersunk hole

125‧‧‧Threaded holes

126‧‧‧Second rolling groove

13‧‧‧Roller

14‧‧‧Lock Firmware

141‧‧‧ bolt head

142‧‧ Thread Department

15‧‧‧ rolling space

16‧‧‧Half ring

1 is a perspective view of a first preferred embodiment of the present invention; the second drawing is a cross-sectional view taken along line 2-2 of the first preferred embodiment of the present invention; and the third drawing is a first preferred embodiment of the present invention. Explosion diagram 4 is a perspective view of a second preferred embodiment of the present invention; and a fifth view is a perspective view of a third preferred embodiment of the present invention.

11‧‧‧Act

12‧‧‧ half-ring

122‧‧‧ second side

124‧‧‧ countersunk hole

125‧‧‧Threaded holes

Claims (7)

A rolling bearing comprising: a ring body having a first rolling groove; and a second half ring body, each of the half ring bodies having an opposite first side and a second side, each of the half ring bodies being formed on the first side a beveled surface, wherein each of the half-rings distributes a plurality of counterbore holes and a plurality of threaded holes on the second side; the first sides of each of the half-rings are in contact with each other, and each of the slopes collectively forms a second rolling groove; The two rolling grooves and the first rolling groove form a rolling space; each of the counterbore holes of the half ring body is respectively connected with each of the threaded holes of the other half ring body; a plurality of rolling elements are received in the And a plurality of fasteners, wherein each of the half rings is screwed into each of the counterbore holes and each of the threaded holes. The rolling bearing according to claim 1, wherein the number of the counterbore holes is the same as the number of the screw holes. The rolling bearing of claim 1, wherein each of the counterbore holes and each of the threaded holes are alternately distributed in the half ring. The rolling bearing according to claim 1, wherein each of the counterbore holes and each of the threaded holes are alternately distributed at equal intervals in the half ring body. The rolling bearing of claim 1, wherein the rolling element is a ball or a roller. The rolling bearing of claim 1, wherein each of the counterbore holes and each of the threaded holes are symmetrically distributed in the half ring. The rolling bearing according to claim 1, wherein each of the counterbore holes and each of the threaded holes are symmetrically distributed at equal intervals in the half ring body.