CN201391540Y

CN201391540Y - Insert bearing with concentric locking collar

Info

Publication number: CN201391540Y
Application number: CN200920039901U
Authority: CN
Inventors: 沈士礼
Original assignee: JIANGSU SUXIN MACHINERY CO Ltd
Current assignee: JIANGSU SUXIN MACHINERY CO Ltd
Priority date: 2009-04-24
Filing date: 2009-04-24
Publication date: 2010-01-27
Anticipated expiration: 2019-04-24

Abstract

The utility model relates to the technical field of bearings, in particular to an insert bearing with a concentric locking collar, which is provided with a bearing inner ring and an outer ring; the bearing inner ring is fixedly connected with a shaft by a top thread, one end of the bearing inner ring, which is exposed, is sheathed with the concentric locking collar, and the concentric locking collar is in clearance fit with the bearing inner ring, screwed holes are arranged on the concentric locking collar, a through hole is arranged on the bearing inner ring, corresponding to the position of the screw hole of the concentric locking collar, the diameter of the through hole is more than the outer diameter of the screwed hole, the top thread is connected with the screwed hole in a threading way and passes through the through hole, and the shaft, the bearing inner ring and the concentric locking collar are fixed together. The bearing inner ring of the utility model is not provided with the screwed hole, thereby not generating screwing-down torque, the inner ring can not generate cracks; the insert bearing is suitable for the occasions that the rotating direction is changed, and the processing cost is low.

Description

Band concentric locking collar bearing with spherical outside surface

Technical field

The utility model relates to technical field of bearings, relates in particular to a kind of bearing with spherical outside surface that has concentric locking collar.

Background technique

The mounting structure of bearing with spherical outside surface has multiple, and the main structure pattern has:

1, band jackscrew bearing: have wide inner ring UC type and inner ring one to hold two kinds on a UB type level with both hands, band jackscrew bearing uses the use occasion that changes with sense of rotation;

2, band eccentric bushing bearing: have wide inner ring UEL type and inner ring one to hold two kinds on a UE type level with both hands, band eccentric bushing heart cover bearing is applicable to the use occasion that sense of rotation is constant;

3, band adapter sleeve bearing: wide inner ring, internal diameter are the UK+H type of taper hole, are applicable to the use occasion that sense of rotation changes, and revolution is higher.

Band jackscrew bearing though the bearing inner race jackscrew is handled through local annealing, is subjected to being vibrated in excessive screw-down torque and the bearing using process, makes inner ring top wire hole place ftracture easily; The band eccentric bushing bearing only is applicable to the use occasion that sense of rotation is constant; Band adapter sleeve bearing requirement on machining accuracy height, cost is somewhat expensive.

The model utility content

The utility model provides a kind of bearing with spherical outside surface with concentric locking collar, with the inner ring top wire hole place that solves band jackscrew bearing this technical problem that ftractures easily.

The technological scheme that its technical problem that solves the utility model adopts is: a kind of bearing with spherical outside surface, have bearing inner race and outer ring, bearing inner race is fixedlyed connected with axle by jackscrew, the end that bearing inner race exposes is with concentric locking collar, concentric locking collar and bearing inner race Spielpassung, offer tapped hole on the concentric locking collar, offer through hole on the bearing inner race corresponding to the tapped hole place of concentric locking collar, through-hole diameter is greater than the tapped hole external diameter, jackscrew is threaded with tapped hole and by through hole, axle, bearing inner race and concentric locking collar is fixed together.

Further, more firm for axle, bearing and concentric locking collar three are connected, the through hole on the bearing inner race and the quantity of the tapped hole on the concentric locking collar are two, and the angle between two tapped holes is 120 °.

Further, the angle between two through holes also is 120 °, however since through-hole aperture greater than the tapped hole external diameter, therefore the angle between the angle between two through holes and two tapped holes has nearmis, it is worth less than ± 1 °.

For plasticity and the impact toughness that improves concentric locking collar, the material of concentric locking collar is No. 20 steel.

The utility model bearing inner race unthreaded hole does not produce screw-down torque thus, and inner ring can not produce cracking, and the utility model is applicable to the occasion that sense of rotation changes, and processing cost is lower.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further specified.

Fig. 1 is a structural representation of the present utility model;

Wherein: 1, outer ring, 2, inner ring, 2-1, through hole, 3, jackscrew, 4, concentric locking collar, 4-1, tapped hole.

Embodiment

With preferred embodiment the utility model is described in further detail in conjunction with the accompanying drawings now.These accompanying drawings are the schematic representation of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.

As shown in Figure 1, a kind of band concentric locking collar bearing with spherical outside surface, have bearing inner race 2 and outer ring 1, bearing inner race 2 is fixedlyed connected with axle by jackscrew 3, the end that bearing inner race 2 exposes is with concentric locking collar 4, concentric locking collar 4 and bearing inner race 2 Spielpassung, offer tapped hole 4-1 on the concentric locking collar 4, offer through hole 2-1 on the bearing inner race 2 corresponding to the tapped hole 4-1 place of concentric locking collar 4, through hole 2-1 diameter is greater than tapped hole 4-1 external diameter, jackscrew 3 is threaded with tapped hole 4-1 and passes through through hole 2-1, with axle, bearing inner race 2 and concentric locking collar 4 are fixed together, and through hole 2-1 on the bearing inner race 2 and the quantity of the tapped hole 4-1 on the concentric locking collar 4 are two, and the angle between two tapped hole 4-1 is 120 °, angle between two through hole 4-1 also is 120 °, yet because through-hole aperture is greater than the tapped hole external diameter, therefore the angle between the angle between two through holes and two tapped holes has nearmis, and its value should be less than ± 1 °, for plasticity and the impact toughness that improves concentric locking collar, the material of concentric locking collar is No. 20 steel.

Because the utility model bearing inner race unthreaded hole does not produce screw-down torque thus, inner ring can not produce cracking, and the utility model is applicable to the occasion that sense of rotation changes, and processing cost is lower.

Claims

1, a kind of band concentric locking collar bearing with spherical outside surface, has bearing inner race (2) and outer ring (1), bearing inner race (2) is fixedlyed connected with axle by jackscrew (3), it is characterized in that: the end that described bearing inner race (2) exposes is with concentric locking collar (4), concentric locking collar (4) and bearing inner race (2) Spielpassung, offer tapped hole (4-1) on the concentric locking collar (4), offer through hole (2-1) on the bearing inner race of locating corresponding to the tapped hole (4-1) of concentric locking collar (4) (2), through hole (2-1) diameter is greater than tapped hole (4-1) external diameter, jackscrew (3) is threaded with tapped hole (4-1) and passes through through hole (2-1), with axle, bearing inner race (2) and concentric locking collar (4) are fixed together.

2, band concentric locking collar bearing with spherical outside surface according to claim 1 is characterized in that: the through hole (2-1) on the described bearing inner race (2) and the quantity of the tapped hole (4-1) on the concentric locking collar (4) are two.

3, band concentric locking collar bearing with spherical outside surface according to claim 2, it is characterized in that: the angle between described two tapped holes (4-1) is 120 °.

4, band concentric locking collar bearing with spherical outside surface according to claim 2 is characterized in that: the error between the angle between the angle between described two through holes (2-1) and two tapped holes (4-1) is less than ± 1 °.

5, band concentric locking collar bearing with spherical outside surface according to claim 1 is characterized in that: the material of described concentric locking collar (4) is No. 20 steel.