CN216216311U

CN216216311U - Motor fixed through axial force bearing

Info

Publication number: CN216216311U
Application number: CN202122406965.9U
Authority: CN
Inventors: 王金国
Original assignee: Shandong Gonglida Motor Co ltd
Current assignee: Shandong Gonglida Motor Co ltd
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2022-04-05
Anticipated expiration: 2031-10-08

Abstract

The utility model relates to the technical field of bearing installation, in particular to a motor fixed through an axial force bearing, which comprises a motor rotating shaft, wherein a first arc groove is formed in the surface of the motor rotating shaft, a column bearing and a four-point contact bearing are respectively sleeved on the surface of one end of the motor rotating shaft, a bearing outer cover and a bearing inner cover which are symmetrically arranged are respectively arranged on one side of the column bearing and one side of the four-point contact bearing, and a bearing sleeve is tightly sleeved between the outer ring surfaces of the column bearing and the four-point contact bearing. According to the utility model, the bearing base plate and the bearing base plate external member are arranged, the bearing base plate is arranged in the first arc groove on the surface of the motor rotating shaft in a matching manner, and the bearing base plate external member is used for fixing the position of the bearing base plate, so that the stability of the position of the bearing base plate is improved, the problem of shaft bending deformation caused by the axial force bearing at the rear end is further avoided, and the operation stability is improved.

Description

Motor fixed through axial force bearing

Technical Field

The utility model relates to the technical field of bearing installation, in particular to a motor fixed through an axial force bearing.

Background

The bearing on the motor sometimes has axial force, so that the bearing with the axial force is selected, the bearing with the axial force relates to the fixation on the bearing, because the bearing without the axial force is fixed by the retaining ring, but the retaining ring cannot bear larger axial force, the motor has a problem after long service life, for a pure vertical motor, the bearing is fixed by a round nut and a round nut by a stop retaining ring, and because the round nut can bear larger axial force, the fixing method is not problematic and is a mature fixing method. However, the horizontal motor sometimes has axial force, for example, the tunnel fan motor is the motor with axial force, the bearing of the motor needs to be positioned at the shaft extension end, if the non-shaft extension end is fixed, the shaft is easy to bend, which causes a problem.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a motor fixed through an axial force bearing.

In order to achieve the above purposes, the technical scheme adopted by the utility model is as follows: a motor fixed through an axial force bearing comprises a motor rotating shaft, wherein a first arc groove is formed in the surface of the motor rotating shaft, a column bearing and a four-point contact bearing are respectively sleeved on one end surface of the motor rotating shaft, a bearing outer cover and a bearing inner cover which are symmetrically arranged are respectively arranged on one side of the column bearing and one side of the four-point contact bearing, a bearing sleeve is tightly sleeved between the outer ring surfaces of the column bearing and the four-point contact bearing, two symmetrical side surfaces of the bearing sleeve are respectively contacted with the side surfaces of the bearing outer cover and the bearing inner cover, an oil seal is bonded on the side surface of an inner ring of the column bearing, a bearing base plate sleeve is bonded on the side surface of the oil seal, a bearing base plate is placed inside the bearing base plate sleeve, the bearing base plate is matched and extended to the inside of the first arc groove, and the bearing base plate are connected through a plurality of fastening mechanisms, and one side of the bearing inner cover is provided with a limiting mechanism.

Preferably, the fastening mechanism comprises a step screw hole and a screw hole, the step screw hole and the screw hole are respectively arranged on the surfaces of the bearing base plate sleeve and the bearing base plate, and a fastening screw is inserted between the step screw hole and the screw hole in a threaded manner.

Preferably, stop gear includes ring piece and bearing limiting plate, the fixed cover of bearing limiting plate is established on the surface of motor axis of rotation, the ring piece passes through the side at the bearing inner cup of mounting screw, the ring spout has been seted up to the side of ring piece, the position of ring spout and bearing limiting plate corresponds, there are a plurality of connecting pieces, a plurality of in the side of bearing limiting plate through the mounting screw the one end activity cover of connecting piece is equipped with the ball, and is a plurality of the ball rolls along the inside of ring spout.

Preferably, the connecting pieces are at least four, and the four connecting pieces are arranged at equal angles.

Preferably, the fixed cover of one end of motor axis of rotation is equipped with the stopper, the side of stopper is equipped with the lug, open the side of bearing enclosing cover still is equipped with second circular arc recess, the one end of lug extends to the inside of second circular arc recess for the surface of lug slides along the inner wall of second circular arc recess.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the bearing base plate and the bearing base plate external member are arranged, the bearing base plate is arranged in the first arc groove on the surface of the motor rotating shaft in a matching manner, and the bearing base plate external member is used for fixing the position of the bearing base plate, so that the stability of the position of the bearing base plate is improved, the problem of shaft bending deformation caused by the axial force bearing at the rear end is further avoided, and the operation stability is improved.

The utility model does not change the original bearing structure, can directly adopt original components such as the inner and outer covers of the bearing, the bearing sleeve and the like to assemble, and has simple structure, small occupied space and convenient installation and maintenance.

Drawings

FIG. 1 is an isometric view of an electric machine of the present invention secured by an axial force bearing;

FIG. 2 is a cross-sectional view of an electric machine of the present invention secured by an axial force bearing;

FIG. 3 is an enlarged schematic view of the motor of the present invention shown at A and secured by an axial force bearing;

FIG. 4 is a schematic view of a bearing shim plate assembly of a motor secured by an axial force bearing according to the present invention;

fig. 5 is a schematic diagram of a bearing pad structure of a motor fixed by an axial force bearing according to the present invention.

In the figure: the bearing comprises a connecting piece 1, a bearing limiting plate 2, a bearing inner cover 3, a bearing sleeve 4, a bearing outer cover 5, a limiting block 6, a motor rotating shaft 7, a column bearing 8, a four-point contact bearing 9, a screw hole 10, a circular ring sliding groove 11, a ball 12, a stepped screw hole 13, an oil seal 14, a bearing base plate 15, a bearing base plate sleeve piece 16, a fastening screw 17 and a circular ring block 18.

Detailed Description

The following description is presented to disclose the utility model so as to enable any person skilled in the art to practice the utility model. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

As shown in fig. 1-5, a motor fixed by an axial force bearing comprises a motor rotating shaft 7, a first arc groove is formed on the surface of the motor rotating shaft 7, a cylindrical bearing 8 and a four-point contact bearing 9 are respectively sleeved on the surface of one end of the motor rotating shaft 7, a bearing outer cover 5 and a bearing inner cover 3 which are symmetrically arranged are respectively arranged on one side of the cylindrical bearing 8 and one side of the four-point contact bearing 9, a bearing sleeve 4 is tightly sleeved between the outer ring surfaces of the cylindrical bearing 8 and the four-point contact bearing 9, two symmetrical side surfaces of the bearing sleeve 4 are respectively contacted with the side surfaces of the bearing outer cover 5 and the bearing inner cover 3, an oil seal 14 is bonded on the inner ring side surface of the cylindrical bearing 8, a bearing backing plate kit 16 is bonded on the side surface of the oil seal 14, a bearing backing plate 15 is placed inside the bearing backing plate kit 16, the bearing backing plate 15 is matched and extended into the first arc groove, and the bearing backing plate kit 15 is connected with the bearing backing plate kit 16 by a plurality of fastening mechanisms, the fastening mechanism comprises a step screw hole 13 and a screw hole 10, the step screw hole 13 and the screw hole 10 are respectively arranged on the surfaces of a bearing base plate sleeve 16 and a bearing base plate 15, and a fastening screw 17 is inserted between the step screw hole 13 and the screw hole 10 in a threaded manner. When the bearing backing plate set 16 and the bearing backing plate 15 are connected and fixed, only the fastening screw 17 needs to be inserted into the stepped screw hole 13 and the screw hole 10 in a threaded manner, the bearing backing plate set 16 and the bearing backing plate 15 are connected and fixed, the bearing backing plate 15 is inserted into the first arc groove on the surface of the motor rotating shaft 7, the shaft bending deformation of the axial force bearing caused at the rear end is prevented, and the stability of the axial force bearing during working is improved.

One side of the bearing inner cover 3 is provided with a limiting mechanism. Stop gear includes ring piece 18 and bearing limiting plate 2, the fixed cover of bearing limiting plate 2 is established on the surface of motor rotation axis 7, ring piece 18 passes through the mounting screw in the side of bearing inner cup 3, ring spout 11 has been seted up to the side of ring piece 18, ring spout 11 corresponds with the position of bearing limiting plate 2, there are a plurality of connecting pieces 1 in the side of bearing limiting plate 2 through the mounting screw, the one end movable sleeve of a plurality of connecting pieces 1 is equipped with ball 12, a plurality of balls 12 roll along the inside of ring spout 11. The connecting pieces 1 are at least four, and the four connecting pieces 1 are arranged at equal angles. When further spacing axial force bearing, drive bearing limiting plate 2 along with motor axis of rotation 7 and rotate, bearing limiting plate 2 drives a plurality of connecting pieces 1 and rotates in step, and connecting piece 1 drives ball 12 and rotates in the inside of ring spout 11, and ring spout 11 plays spacing effect to ball 12, prevents axial force bearing offset on the horizontal direction, further reduces the effect of the axial force that the axial force bearing receives.

The fixed cover of one end of motor axis of rotation 7 is equipped with stopper 6, and the side of stopper 6 is equipped with the lug, and open the side of bearing enclosing cover 5 still is equipped with second circular arc recess, and the one end of lug extends to the inside of second circular arc recess for the surface of lug slides along the inner wall of second circular arc recess. Stopper 6 and stop gear's cooperation setting for all play spacing effect to the both sides of axial force bearing, further promoted the stability of axial force bearing when receiving the axial.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a motor through axial force bearing is fixed, includes motor rotation axis (7), first circular arc recess has been seted up on the surface of motor rotation axis (7), its characterized in that, the one end surface of motor rotation axis (7) is equipped with post bearing (8) and four-point contact bearing (9) respectively, one side of post bearing (8) and four-point contact bearing (9) is equipped with symmetrical arrangement's bearing enclosing cover (5) and bearing inner cup (3) respectively, the fastening cover is equipped with bearing housing (4) between the outer lane surface of post bearing (8) and four-point contact bearing (9), two symmetrical sides of bearing housing (4) contact with the side of bearing enclosing cover (5) and bearing inner cup (3) respectively, the inner circle side of post bearing (8) bonds and has oil blanket (14), the side bonding of oil blanket (14) has bearing backing plate external member (16), bearing backing plate (15) have been placed to the inside of bearing backing plate external member (16), bearing backing plate (15) match the inside that extends to first circular arc recess, connect through a plurality of fastening device between bearing backing plate (15) and the bearing backing plate external member (16), one side of bearing inner cup (3) is equipped with stop gear.

2. An electric motor fixed by an axial force bearing according to claim 1, characterized in that the fastening mechanism comprises a stepped screw hole (13) and a screw hole (10), the stepped screw hole (13) and the screw hole (10) are respectively provided on the surfaces of the bearing backing plate kit (16) and the bearing backing plate (15), and a fastening screw (17) is inserted between the stepped screw hole (13) and the screw hole (10).

3. The motor fixed by the axial force bearing according to claim 1, wherein the limiting mechanism comprises a ring block (18) and a bearing limiting plate (2), the surface of the motor rotating shaft (7) is fixedly sleeved with the bearing limiting plate (2), the ring block (18) is installed on the side of the bearing inner cover (3) through a screw, a ring sliding groove (11) is formed in the side of the ring block (18), the positions of the ring sliding groove (11) and the bearing limiting plate (2) correspond to each other, a plurality of connecting pieces (1) are installed on the side of the bearing limiting plate (2) through screws, and the connecting pieces (1) are multiple, the ball (12) rolls along the inside of the ring sliding groove (11) and is movably sleeved at one end of each connecting piece (1).

4. A machine fixed by means of axial force bearings according to claim 3, characterized in that said connecting elements (1) are provided in at least four, four of said connecting elements (1) being equiangularly aligned.

5. An electric motor fixed by an axial force bearing according to claim 1, wherein one end of the motor rotating shaft (7) is fixedly sleeved with a stopper (6), the side surface of the stopper (6) is provided with a convex block, the side surface of the bearing outer cover (5) is further provided with a second arc groove, and one end of the convex block extends to the inside of the second arc groove, so that the surface of the convex block slides along the inner wall of the second arc groove.