CN203285852U

CN203285852U - Outer spherical bearing

Info

Publication number: CN203285852U
Application number: CN2013203118646U
Authority: CN
Inventors: 刁杰伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-05-31
Filing date: 2013-05-31
Publication date: 2013-11-13
Anticipated expiration: 2023-05-31

Abstract

The utility model provides an outer spherical bearing, comprising a first oil nipple disposed on the upper part of a bearing seat, a bearing outer ring in a spherical contact with the bearing seat, a bearing inner ring, a plurality of steel balls disposed between the bearing inner ring and the bearing outer ring, a holder sleeved on the steel balls, two sealing rings disposed between the bearing inner ring and the bearing outer ring and two stop pins disposed on the spherical outer wall of the bearing outer ring. A second oil nipple is disposed on an outward direction in an axial direction of the bearing inner ring, an oil guide groove inward along an axial direction of the bearing inner ring is disposed on the inner wall of the bearing inner ring at a position corresponding to that of the second oil nipple; and the inward end part of the oil guide groove is disposed at the lower part of a lubrication chamber formed by the bearing outer ring, the bearing inner ring and the sealing ring and is provided with an oil guide hole communicating the lubrication chamber and the oil guide groove. The bearing overcomes the oiling defects of a conventional bearing, greatly increases the performance of the outer spherical bearing and prolongs the service life of the outer spherical bearing.

Description

A kind of bearing with spherical outside surface

Technical field

The utility model relates to mechanical engineering Element Technology field, is specifically related to a kind of bearing.

Background technique

Lubricated fatigue life to rolling bearing and friction, wearing and tearing, temperature rise, vibration etc. have material impact, if bearing does not lubricate through normal, the performance of bearing and life-span will reduce greatly.Show according to data analysis, the bearing damage of 40% left and right is all relevant with insufficient lubrication.Therefore, to bearing as effectively lubricating, be the effective measures that reduce pivot friction and wearing and tearing.And, effectively lubricated can also be to the heat radiation of bearing, antirust, sealing, relax the useful effect of playing of impacting.Make bearing with spherical outside surface that good working environment be arranged, give full play to its service behaviour, increase the service life, must inject moderate lubrication fat in the lubricating cavity of bearing after bearing with spherical outside surface uses a period of time.and existing bearing with spherical outside surface, particularly GB UCP serial band base spherical outside surface bearing is all to adopt " indirect mode " to carry out oil injecting lubricating, namely pass through the oil nozzle on bearing support top, the oil guide slot on bearing support inwall and surface, outer ring and oil guiding hole inject lubricating grease or lubricant oil in lubricating cavity, owing to having fit up gap between bearing with spherical outside surface body and bearing support, particularly in the bearing with spherical outside surface working procedure, fit up gap can be strengthened because of the deformation that bearing produces, dust and foreign matters from being blocked oil guiding hole and can't be the bearing oil injecting lubricating, moreover, sometimes also can make oil guide slot and oil guiding hole produce dislocation when the bearing with spherical outside surface aligning and can't oiling, cause the reduction greatly in bearing with spherical outside surface service behaviour and life-span.

The model utility content

In view of the deficiency of prior art, the utility model provides a kind of bearing with spherical outside surface, and this bearing has overcome the defect of existing bearing oiling, has greatly improved performance and the life-span of bearing.

The scheme that the utility model solves the problems of the technologies described above is as follows:

A kind of bearing with spherical outside surface, comprise first pump nozzle that is positioned at bearing support top, one and bearing support is the bearing outer ring, a bearing inner race of sphere-contact, a plurality of steel ball, that is uniformly distributed in the middle of bearing inner race and bearing outer ring is placed in the retainer on steel ball, 2 seal ring and 2 stop pin of being located on the spherical outer wall of bearing outer ring that are placed between bearing inner race, bearing outer ring, it is characterized in that

Upper one second pump nozzle that also is provided with of the axial outward direction of described bearing inner race, the inwall of the bearing inner race corresponding with this second pump nozzle position is provided with one along the inside oil guide slot of bearing inner race axial direction, the inside end of oil guide slot is positioned at the lubricating cavity bottom that bearing outer ring, bearing inner race and seal ring surround, and is provided with the oil guiding hole of a connection lubricating cavity and oil guide slot.

Under guaranteeing that bearing with spherical outside surface in working order, be placed in the rotating shaft of bearing inner race inside and bearing inner race does not produce relative rotation and rotating shaft does not produce vibration when running up, or when oiling, rotating shaft and oil guide slot can close to coordinate and form the oiling passage of sealing more, and described bearing inner race circle wall also is provided with a rotating shaft securing means on the position corresponding with the oiling through hole.

For guaranteeing bearing with spherical outside surface manufacture cost and versatility, described rotating shaft securing means can adopt interior hexagonal Cock screw.

The beneficial effect of bearing with spherical outside surface provided by the utility model is:

due to the utility model when not abandoning original pump nozzle and providing lubricating function between for bearing outer ring and bearing support, adopted the mode of " directly " oiling, utilize the closed oiling passage that forms of rotating shaft and oil guide slot, make the oiling through hole that is positioned on bearing inner race pass through oil guide slot, oil guiding hole and bearing outer ring, the lubricating cavity that bearing inner race and seal ring surround directly is communicated with, lubricant grease can be injected in lubricating cavity smoothly, even bearing with spherical outside surface is after any direction and angle aligning, also can guarantee smooth oiling, and owing to also being provided with a rotating shaft securing means on the bearing inner race circle wall position corresponding with the oiling through hole, stability when this device not only improves the bearing rotation, also greatly reduced simultaneously the fit up gap of oiling path, reduced the oiling path by the possibility of foreign body obstruction, thereby improved the performance of bearing with spherical outside surface and extended its working life.

Description of drawings

Fig. 1～Fig. 5 is respectively front elevation, A-A sectional view, rear view, bearing inner race oiling path partial enlarged drawing and the top view of a specific embodiment of a kind of bearing with spherical outside surface described in the utility model.

Embodiment

This example is a kind of bearing with spherical outside surface with the vertical shaft bearing provided by the utility model.As shown in Fig. 1～5, this bearing with spherical outside surface comprise first pump nozzle 13 that is positioned at the bearing support crown center, one and vertical shaft bearing 6 be sphere-contact bearing outer ring 5, a bearing inner race 3, a plurality ofly be uniformly distributed in steel ball 4 in the middle of bearing inner race 3, bearing outer ring 5, be placed in retainer 7 on steel ball, be placed between bearing inner race, bearing outer ring, 2

seal rings

8 and 2 stop pin 11 of being located on the spherical outer wall of bearing outer ring of being used for the closed lubrication chamber, this bearing with spherical outside surface also comprises one second pump nozzle 1 in addition, wherein

Described the second pump nozzle 1 is located on the position of axial outward direction of bearing inner race 3, the inwall of the bearing inner race 3 corresponding with this second pump nozzle 1 position is provided with one along the inside oil guide slot 2 of bearing inner race axial direction, the inside end of oil guide slot 2 is positioned at the lubricating cavity bottom that bearing outer ring 5, bearing inner race 3 and seal ring 8 surround, and is provided with an oil guiding hole that runs through bearing inner race 3.

For guarantee with the bearing with spherical outside surface of vertical shaft bearing in working order under, the rotating shaft 9 that is placed in bearing inner race 3 inside does not produce relative rotation with bearing inner race 3 and rotating shaft 9 does not produce vibration when running up, or when oiling, rotating shaft 9 can be closed to coordinate with oil guide slot 2 and be formed the oiling passage of sealing more, and described bearing inner race 3 encloses on the walls position corresponding with the oiling through hole and also is provided with an interior hexagonal Cock screw 10.

as shown in Figure 3, this bearing with spherical outside surface with the vertical shaft bearing is when assembling, back out the second pump nozzle 1, the bearing with spherical outside surface level is put into vertical shaft bearing 6, and the groove that makes stop pin 11 be stuck in vertical shaft bearing 6 lacks place, then with bearing with spherical outside surface along the sphere vertical rotation, make rotating shaft 9 can insert smoothly bearing inner race 3, then tighten interior hexagonal Cock screw 10 and the second pump nozzle 1 is screwed on and can be used, when bearing performance decline needs oil injecting lubricating, can pass through the second pump nozzle 1, oil guide slot 2, oil guiding hole 12 is to directly oiling in lubricating cavity, improved the performance of bearing with spherical outside surface and extended its working life.

Claims

1. bearing with spherical outside surface, comprise first pump nozzle that is positioned at bearing support top, one and bearing support is the bearing outer ring, a bearing inner race of sphere-contact, a plurality of steel ball, that is uniformly distributed in the middle of bearing inner race and bearing outer ring is placed in the retainer on steel ball, 2 seal ring and 2 stop pin of being located on the spherical outer wall of bearing outer ring that are placed between bearing inner race, bearing outer ring, it is characterized in that

2. a kind of bearing with spherical outside surface as claimed in claim 1, is characterized in that, also is provided with a rotating shaft securing means on described bearing inner race with on the radially corresponding position of oiling through hole.

3. as claimed in claim 2 one all bearing with spherical outside surfaces, is characterized in that, described rotating shaft securing means is interior hexagonal Cock screw.