CN211701694U

CN211701694U - Ball motor bearing

Info

Publication number: CN211701694U
Application number: CN202020440609.1U
Authority: CN
Inventors: 金卫国
Original assignee: Jiangsu Vocational College of Information Technology
Current assignee: Shandong Jiafu Energy Technology Co ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-10-16
Anticipated expiration: 2030-03-30

Abstract

The utility model discloses a ball motor bearing, including stator frame, rotor block and the ball bearing subassembly of dress between stator frame and rotor block, the rotor block is the ball ring, and the ball bearing subassembly comprises the supporting piece and a plurality of balls of inlaying on the supporting piece, and the stator frame comprises stator frame upper cover and two stator frame side covers. The advantages are that: the ball bearing and the bearing are arranged between the stator seat and the rotor body, and the rotor body can rotate at any angle, any direction and any speed in the middle of the stator seat with high precision.

Description

Ball motor bearing

Technical Field

The utility model relates to a ball motor bearing.

Background

With the increasingly wide application of intellectualization and mechatronics in various fields, the motion of various mechanisms is limited by a common motor, and the spherical motor is also applied at present, but the popularization of the spherical motor is greatly limited due to the bearing structure.

In order to realize no dead angle of the rotation of the spherical motor, a special structure of a bearing is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a realize spherical motor bearing at spherical motor pivoted no dead angle.

The technical scheme is as follows: a ball motor bearing comprises a stator seat, a rotor body and a ball bearing assembly arranged between the stator seat and the rotor body, wherein the rotor body is a ball ring,

the ball bearing assembly is composed of a bearing part and a plurality of balls embedded on the bearing part, the bearing part is arranged on the outer surface of the rotor body in a matching way, the bearing part is a spherical shell with the size larger than half, and the outer surface of the bearing part is a large half spherical surface; a plurality of ball holes are formed in the supporting piece in a matched manner with the balls, the balls are embedded into the ball holes, and the balls are in rolling contact with the outer surface of the rotor body and the inner surface of the stator seat simultaneously;

the stator seat is composed of a stator seat upper cover and two stator seat side covers, the stator seat upper cover is a hemispherical shell, and the inner surface of the stator seat upper cover is in contact with the balls; the two stator seat side covers are symmetrically arranged and coated on the outer surface of the rotor body, and are connected with the stator seat upper cover.

To the utility model discloses technical scheme's preferred, bearing piece and ball adopt non-magnetic material to make, do not influence the magnetic field work between rotor and the stator.

To the utility model discloses technical scheme's preferred, the ball that the supporting piece top was arranged is close, and the ball that the supporting piece lower part was arranged is sparse. The balls are arranged densely at the top and can bear large force. Balls are distributed below the center of the rotor, so that the stator seat and the rotor body are not separated and move stably relative to each other.

It is right to the utility model discloses technical scheme's preferred, two stator seat side cap upper ends all set up the breach groove that the card goes into the stator seat upper cover to through bolted connection stator seat upper cover on the outer wall of breach groove department.

To the utility model discloses technical scheme's preferred, two stator seat side cap lower extreme internal surfaces all inwards extend and set up one section and be used for holding the filler ring of supporter.

Compared with the prior art, the utility model, its beneficial effect is:

the utility model discloses a ball motor bearing, ball and bearing are installed between stator frame and rotor block, and the rotor block can be in the middle of the stator frame arbitrary angle, arbitrary direction, arbitrary speed do the high accuracy rotatory.

Drawings

Fig. 1 is a front view of a ball motor bearing (the structure of stator windings, rotor windings, and magnets are omitted in the drawing).

Fig. 2 is a top view of a ball motor bearing (shown with the stator housing upper cover hidden).

FIG. 3 is a schematic view of a ball bearing assembly.

Fig. 4 is an enlarged view at a in fig. 3.

Detailed Description

The technical solution of the present invention is explained in detail below, but the scope of protection of the present invention is not limited to the embodiments.

In order to make the disclosure of the present invention more comprehensible, the following description is further made in conjunction with the accompanying fig. 1 to 4 and the embodiments.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Example 1:

as shown in fig. 1 and 2, a ball motor bearing includes a stator housing, a rotor body and a ball bearing assembly installed between the stator housing and the rotor body, and the rotor body 3 is a ball ring. An arch is rotated about a diameter that does not pass through it, and the resulting solid is called a ball ring. The bow shape is a figure formed by a section of circular arc and a chord opposite to the circular arc. The rotor body 3 can rotate infinitely in any direction and at any angle in the stator seat.

As shown in fig. 1, in the present embodiment, the internal structure of the rotor body is determined by the motor structure according to the rotor coil, the rotor magnet, or the like, and the internal structure of the rotor body is not specifically defined in the present invention.

As shown in fig. 3 and 4, the ball bearing assembly is composed of a bearing member 1 and a plurality of balls 2 embedded in the bearing member 1, the bearing member 1 is fittingly disposed on the outer surface of a rotor body 3, the bearing member 1 is a spherical shell larger than a half, and the outer surface of the bearing member 1 is a large semispherical surface; a plurality of ball holes are formed in the supporting piece 1 in a matched mode with the balls 2, the balls 2 are embedded into the ball holes, and the balls 2 are in rolling contact with the outer surface of the rotor body and the inner surface of the stator seat at the same time.

As shown in fig. 2, the spherical bearing member may be divided into a plurality of pieces at the time of manufacture, and assembled as a single body.

The ball and the bearing are arranged between the stator seat and the rotor body, and the rotor body can rotate at any angle, direction and speed in the middle of the stator seat with high precision.

The balls 2 are distributed in the bearing part 1 in an uneven state, the stressed upper part is dense, the stressed lower part is sparse, the balls are arranged according to the stress condition of each part, and the number of the balls is determined according to the requirement. The balls are densely arranged on the top of the bearing 1, so that the bearing can bear larger force, and the balls are distributed below the center of the rotor, so that the stator seat and the rotor body are not separated and move more stably relative to each other.

The balls 2 and the support 1 are made of a non-magnetic material and do not affect the magnetic field operation between the rotor and the stator.

As shown in fig. 1, the stator seat is composed of a stator seat upper cover 4 and two stator seat side covers 5, the stator seat upper cover 4 is a hemispherical shell, and the inner surface of the stator seat upper cover 4 contacts with the balls 2; two stator seat side covers 5 are symmetrically arranged and cover the outer surface of the rotor body 3, and the two stator seat side covers 5 are connected with the stator seat upper cover 4. The stator seat of the embodiment can be divided into a plurality of parts during manufacturing and combined together during assembly.

As shown in FIG. 1, the upper ends of the two stator base side covers 5 are both provided with a notch groove 5-1 which is clamped into the stator base upper cover 4, and the stator base upper cover 4 is connected on the outer wall at the notch groove 5-1 through a bolt. The inner surfaces of the lower ends of the two stator seat side covers 5 are provided with a section of supporting ring 5-2 which extends inwards and is used for supporting the supporting piece 1.

The internal structure of the stator holder in the present embodiment is determined by the stator coil and the like, and the internal structure of the stator holder is not specifically defined in the present embodiment.

The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize.

As mentioned above, although the present invention has been shown and described with reference to certain preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A ball motor bearing is characterized in that the bearing comprises a stator seat, a rotor body and a ball bearing assembly arranged between the stator seat and the rotor body,

the rotor body is a ball ring,

the ball bearing assembly is composed of a bearing part (1) and a plurality of balls (2) embedded on the bearing part (1), the bearing part (1) is arranged on the outer surface of the rotor body (3) in a matching mode, the bearing part (1) is a spherical shell with the size larger than half, and the outer surface of the bearing part (1) is a large half spherical surface; a plurality of ball holes are formed in the supporting piece (1) in a matched mode with the balls (2), the balls (2) are embedded into the ball holes, and the balls (2) are in rolling contact with the outer surface of the rotor body and the inner surface of the stator seat at the same time;

the stator seat is composed of a stator seat upper cover (4) and two stator seat side covers (5), the stator seat upper cover (4) is a hemispherical shell, and the inner surface of the stator seat upper cover (4) is in contact with the balls (2); the two stator seat side covers (5) are symmetrically arranged and coated on the outer surface of the rotor body (3), and the two stator seat side covers (5) are connected with the stator seat upper cover (4).

2. Ball motor bearing according to claim 1, wherein the support element (1) and the balls (2) are made of a non-magnetic material.

3. Ball motor bearing according to claim 1, wherein the balls (2) arranged on top of the support (1) are dense and the balls (2) arranged on the lower part of the support (1) are sparse.

4. The ball motor bearing according to claim 1, wherein the upper ends of both stator frame side covers (5) are provided with a gap groove (5-1) which is clamped into the stator frame upper cover (4), and the stator frame upper cover (4) is connected on the outer wall at the gap groove (5-1) through a bolt.

5. Ball motor bearing according to claim 4, wherein the inner surfaces of the lower ends of both stator frame side covers (5) are provided with inwardly extending segments of a ring (5-2) for holding the support (1).