CN201554778U

CN201554778U - Outer spherical bearing with locking sleeve

Info

Publication number: CN201554778U
Application number: CN200920262784XU
Authority: CN
Inventors: 黄财
Original assignee: Dongguan TR Bearing Co Ltd
Current assignee: Dongguan TR Bearing Co Ltd
Priority date: 2009-11-15
Filing date: 2009-11-15
Publication date: 2010-08-18
Anticipated expiration: 2019-11-15

Abstract

The utility model relates to an outer spherical bearing with a locking sleeve, which comprises an inner ring which extends out the end surface of an outer ring, wherein the inner ring is sleeved with a locking sleeve, the inner ring is in a convex shape, the inner ring wall of the upper end of a convex-shaped inner ring step surface extends out the end surface of the outer ring and is in a tooth shaped wall, teeth have uniform sizes and are uniformly distributed, adjacent teeth are spaced by slots, the hardness of the inner ring step surface and the tooth-shaped inner ring wall on the upper end of the step surface are processed in 40-50 Rockwell hardness, the section of the locking sleeve which is sleeved on the inner ring is in a major arc shape, the two ends of a locking sleeve opening are provided with screw holes which are arranged on the same axial line, and locking screws which are connected with the two ends of the locking sleeve opening are arranged in the screw holes. The outer spherical bearing with the locking sleeve can be conveniently and closely mounted and connected with an operating shaft, the bearing and a rotating shaft are not easy to loose in use, the disassembling is convenient, the bearing and the operating shaft are not easy to be damaged, and the service life is prolonged.

Description

A kind of bearing with spherical outside surface with lock sleeve

Technical field

The utility model relates to a kind of bearing, relates in particular to a kind of bearing with spherical outside surface with lock sleeve.

Background technique

In mechanical industry, bearing its inner ring under user mode needs and the rotatingshaft fixed installation, and bearing and rotatingshaft are fixedly installed togather for convenience generally all is fitted with locking device on the bearing.At present, relatively the Chang Yong mode that bearing with spherical outside surface is fixedlyed connected with rotatingshaft is a suit eccentric bushing on inner ring, and it radially has screw the eccentric bushing upper edge, and the screw that tightens up rotating shaft is housed in the screw, and eccentric bushing drives rotating shaft by eccentric inclined-plane and rotates.The bearing with spherical outside surface of this kind structure, when the rotating shaft sense of rotation changes or rotation speed change when big, relative movement can take place in eccentric bushing and bearing inner race, and influence is stable.The patent No. is the Chinese utility model patent of " 200820037642.9 ", disclosed a kind of bearing with spherical outside surface with eccentric bushing, comprise bearing inner race and be sleeved on eccentric bushing on the inner ring, the wall thickness thickness of eccentric bushing has screw, in this screw lock screw is housed, and the head of lock screw props up bearing inner race, and lock screw locking rotating shaft is housed on the eccentric bushing simultaneously.Though solved rotating shaft counter-rotating or the rotation speed change problem that eccentric bushing unclamps when big to a certain extent, but still need to use screw directly to lock rotating shaft and withstand bearing inner race to tighten up eccentric bushing by screw, screw can directly contact with rotating shaft with bearing inner race, under the situation of rotating shaft rotary work, damage bearing inner race and rotating shaft easily, rotating shaft is in high speed rotating, and eccentric bushing also unclamps easily, has strengthened the maintenance expense.

The model utility content

The technical problem that this practicality will solve provides the bearing with spherical outside surface of the band lock sleeve that a kind of locking effect is good, mounting or dismounting are convenient, cost of production is low.

In order to solve the problems of the technologies described above, the utility model is taked following technological scheme:

A kind of bearing with spherical outside surface with lock sleeve comprises the inner ring that extends cycle surface, is set with lock sleeve on this inner ring, described inner ring is convex, the inner ring wall of this convex inner ring step surface upper end stretches out cycle surface and is made as teeth wall, and the tooth size is consistent and evenly distribute, between adjacent teeth with groove at interval.The cross section that is set in the lock sleeve on the inner ring is a major arc shape, and the two ends of this lock sleeve opening have the screw that is positioned at same axis, and the lock screw that connects lock sleeve opening two ends is housed in this screw.

As the improvement to such scheme, the profile of tooth inner ring wall hardness of described convex inner ring step surface and step surface upper end is 40～50 Rockwell hardnesss.

The utility model is by slotting on bearing inner race, utilize lock sleeve to clamp inner ring, thereby make the fastening installation of bearing and rotating shaft, need not utilize screw to pass lock sleeve props up inner ring and directly locks rotating shaft by the screw that passes lock sleeve, but tighten by the lock sleeve that is sleeved on the inner ring, the teeth wall that drives inner ring tightens, and makes inner ring being connected with rotating shaft tightly, tighten up effectively, mounting or dismounting are convenient; Because screw does not contact with inner ring and rotating shaft, makes inner ring and rotating shaft not fragile, has prolonged working life.

Description of drawings

Master when Fig. 1 does not have the assembling lock sleeve for the utility model looks the part section structural representation; Fig. 2 looks the part section structural representation for the master after the utility model assembling; Fig. 3 overlooks the part section structural representation for the utility model lock sleeve.

Embodiment

Understanding for the ease of those skilled in the art is further described the utility model below in conjunction with the drawings and specific embodiments:

As shown in Figure 1, 2, 3, a kind of bearing with spherical outside surface with lock sleeve, comprise the inner ring 2 that extends outer ring 1 end face, be set with lock sleeve 3 on this inner ring 2, described inner ring 1 is convex, the inner ring wall of this convex inner ring 2 step surfaces upper end stretches out outer ring 1 end face and is made as teeth wall, and the tooth size is consistent and evenly distribute, between adjacent teeth with groove 4 at interval.The cross section of the lock sleeve 3 of suit is major arc shape on the inner ring 2, and the two ends of these lock sleeve 3 openings have the screw that is positioned at same axis, the lock screw 5 that connects lock sleeve 3 opening two ends is housed in this screw, in order to make not easy-rupturing of a end that inner ring 2 is provided with teeth wall, improve toughness, reduce fragility, the hardness of the profile of tooth inner ring wall of inner ring 2 step surfaces and step surface upper end is processed as 40～50 Rockwell hardnesss.

During installation, bearing inner race is set in the work rotating shaft, lock sleeve is enclosed within on the inner ring, by tightening the lock screw on the lock sleeve, make lock sleeve tighten the teeth wall of compressing inner ring, because the position that the inner ring teeth wall contacts with lock sleeve has groove, therefore, along with the deflation of lock sleeve, the teeth wall of inner ring also clamps rotating shaft along with tightening, realize that bearing is connected with the installation of rotating shaft, locking effect is good, and mounting or dismounting are convenient.

Claims

1. bearing with spherical outside surface with lock sleeve, comprise the inner ring (2) that extends outer ring (1) end face, be set with lock sleeve (3) on this inner ring, it is characterized in that: described inner ring is convex, the inner ring wall of this convex inner ring step surface upper end stretches out cycle surface and is made as teeth wall, tooth size is consistent and evenly distribute, between adjacent teeth with groove (4) at interval.

2. the bearing with spherical outside surface of band lock sleeve according to claim 1, it is characterized in that: the cross section that is sleeved on the lock sleeve on the described inner ring is major arc shape, the two ends of this lock sleeve opening have the screw that is positioned at same axis, and the lock screw (5) that connects lock sleeve opening two ends is housed in this screw.

3. the bearing with spherical outside surface of band lock sleeve according to claim 1 and 2 is characterized in that: the profile of tooth inner ring wall hardness of described inner ring step surface and step surface upper end is 40～50 Rockwell hardnesss.