CN210371656U

CN210371656U - Radial protection device for clearance between inner ring and outer ring of rolling bearing

Info

Publication number: CN210371656U
Application number: CN201920928571.XU
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Harbin Northeast Pump Co ltd
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-04-21
Anticipated expiration: 2029-06-20

Abstract

The utility model belongs to the technical field of the protection bearing device technique and specifically relates to a radial protection device in outer lane clearance in antifriction bearing, including the bearing frame, the pivot has been placed on the bearing frame, the pivot runs through the bearing frame, one side of bearing frame is seted up flutedly, the outside of pivot is located fixedly connected with antifriction bearing in the recess, be located one side fixedly connected with fixed establishment of antifriction bearing in the recess, the pivot runs through fixed establishment, be located one side fixedly connected with axle sleeve of antifriction bearing in the pivot, the spout has been seted up in the outside of axle sleeve, fixedly connected with cushion in the spout, three ball has been placed in the outside of cushion, the inboard top that is located the ball of antifriction bearing is equal fixedly connected with spacing arch, every spacing arch. The utility model discloses simple structure is worth promoting.

Description

Radial protection device for clearance between inner ring and outer ring of rolling bearing

Technical Field

The utility model relates to a protection bearing technical field especially relates to a radial protection device in antifriction bearing inner and outer lane clearance.

Background

In a magnetic suspension bearing system, a set of protection bearings are generally required to be used as temporary supports in emergency situations such as system power failure, overload, control system failure or malfunction. In a traditional protective bearing design, a rolling bearing is generally assembled in a bearing seat, and a radial clearance required by normal operation of a magnetic suspension bearing arranged between an inner ring of the rolling bearing and a rotor is generally half of the radial clearance between the rotor and the radial magnetic suspension bearing.

The existing protective bearing has poor impact and vibration resistance, and is easy to damage, so that a serious accident of damage of a magnetic suspension bearing system is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the existing anti-impact and vibration capabilities are poor in the prior art, and providing a radial protection device for the clearance between an inner ring and an outer ring of a rolling bearing.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a radial protection device in outer lane clearance in antifriction bearing, includes the bearing frame, the pivot has been placed on the bearing frame, the pivot runs through the bearing frame, one side of bearing frame is seted up flutedly, the outside of pivot is located fixedly connected with antifriction bearing in the recess, lie in the recess one side fixedly connected with fixed establishment of antifriction bearing, the pivot runs through fixed establishment, lie in the pivot one side fixedly connected with axle sleeve of antifriction bearing, the spout has been seted up in the outside of axle sleeve, fixedly connected with cushion in the spout, three ball has been placed in the outside of cushion, antifriction bearing's inboard is located the equal fixedly connected with spacing arch in top of ball, every spacing arch all with the ball contacts.

Preferably, the limiting protrusions are distributed at equal intervals.

Preferably, the fixing mechanism comprises a gland, the gland is placed in the groove, the gland is fixedly connected with a plurality of screws, one end of each screw extends to the bearing seat, a through hole is formed in the bearing seat, and the rotating shaft extends to the outer side of the gland through the through hole.

Preferably, one side of the gland, which is close to the bearing seat, is fixedly connected with a first sealing gasket.

Preferably, a second sealing gasket is fixedly connected in the through hole.

The utility model provides a radial protection device in outer lane clearance in antifriction bearing, beneficial effect lies in:

1. through the ball structure, the ball slides on the spout, and under spacing bellied spacing, reduce the radial force that antifriction bearing received under scram, protection antifriction bearing ability reinforce.

Drawings

Fig. 1 is a schematic structural view of a radial protection device for a gap between an inner ring and an outer ring of a rolling bearing according to the present invention;

fig. 2 is the utility model provides a radial protection device in outer lane clearance's in antifriction bearing's sectional structure sketch map.

In the figure: the sealing device comprises a rotating shaft 1, a rolling bearing 2, a shaft sleeve 3, a sliding groove 4, an elastic pad 5, a ball 6, a limiting protrusion 7, a bearing seat 8, a gland 9, a groove 10, a first sealing gasket 11, a screw 12, a through hole 13 and a second sealing gasket 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a radial protection device for a gap between an inner ring and an outer ring of a rolling bearing comprises a bearing seat 8, a rotating shaft 1 is placed on the bearing seat 8, the rotating shaft 1 penetrates through the bearing seat 8, a groove 10 is formed in one side of the bearing seat 8, the groove 10 is used for connecting a fixing mechanism, a rolling bearing 2 is fixedly connected in the groove 10 on the outer side of the rotating shaft 1, the fixing mechanism is fixedly connected to one side of the rolling bearing 2 in the groove 10 and used for fixing the rolling bearing 2, the fixing mechanism comprises a gland 9, the gland 9 is placed in the groove 10, a first sealing gasket 11 is fixedly connected to one side, close to the bearing seat 8, of the gland 9, the first sealing gasket 11 is used for preventing the rolling bearing 2 from shaking, a plurality of screws 12 are fixedly connected to the gland 9, the screws 12 are used for fixing the gland 9 to the bearing seat 8, the bearing seat 8 is provided with a through hole 13, the through hole 13 is used for placing the rotating shaft 1, and the rotating shaft 1 extends to the outer side of the gland 9 through the through hole 13.

A second sealing gasket 14 is fixedly connected in the through hole 13, the second sealing gasket 14 is used for preventing sundries from entering the groove 10 from the through hole 13, the rotating shaft 1 penetrates through the fixing mechanism, the shaft sleeve 3 is fixedly connected on one side of the rolling bearing 2 on the rotating shaft 1, the shaft sleeve 3 is used for connecting the rolling balls 6, a chute 4 is formed in the outer side of the shaft sleeve 3, the chute 4 is used for enabling the rolling balls 6 to roll on the shaft sleeve 3, an elastic cushion 5 is fixedly connected in the chute 4, the elastic cushion 5 is used for enabling the rolling balls 6 to shift in the axial direction, three rolling balls 6 are placed on the outer side of the elastic cushion 5, limiting bulges 7 are fixedly connected on the inner side of the rolling bearing 2 above the rolling balls 6, and the rolling balls 6 slide on, under spacing of spacing arch 7, reduce the radial force that antifriction bearing received under scram, spacing arch 7 equidistant distribution, every spacing arch 7 all contacts with ball 6.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The radial protection device for the gap between the inner ring and the outer ring of the rolling bearing comprises a bearing seat (8) and is characterized in that a rotating shaft (1) is placed on the bearing seat (8), the rotating shaft (1) penetrates through the bearing seat (8), a groove (10) is formed in one side of the bearing seat (8), the outer side of the rotating shaft (1) is located in the groove (10) and fixedly connected with the rolling bearing (2), a fixing mechanism is fixedly connected to one side of the rolling bearing (2) in the groove (10), the rotating shaft (1) penetrates through the fixing mechanism, a shaft sleeve (3) is fixedly connected to one side of the rolling bearing (2) on the rotating shaft (1), a sliding groove (4) is formed in the outer side of the shaft sleeve (3), an elastic pad (5) is fixedly connected in the sliding groove (4), and three balls (6) are placed on the outer side of the, the inner side of the rolling bearing (2) is located above the ball (6) and is fixedly connected with limiting protrusions (7), and each limiting protrusion (7) is in contact with the ball (6).

2. A radial protector for the clearance between the inner and outer races of a rolling bearing according to claim 1, in which the said limit projections (7) are equally spaced.

3. The radial protection device for the clearance between the inner ring and the outer ring of the rolling bearing according to claim 1 is characterized in that the fixing mechanism comprises a gland (9), the gland (9) is placed in the groove (10), a plurality of screws (12) are fixedly connected to the gland (9), one end of each screw (12) extends to the bearing seat (8), a through hole (13) is formed in the bearing seat (8), and the rotating shaft (1) extends to the outer side of the gland (9) through the through hole (13).

4. A radial protector for the clearance between the inner and outer races of a rolling bearing according to claim 3, in which a first seal (11) is fixedly attached to the gland (9) on the side adjacent to the bearing seat (8).

5. A radial protector for the clearance between the inner and outer races of a rolling bearing according to claim 3, characterized in that a second seal (14) is fixedly connected to the inside of said through-hole (13).