WO2017097010A1

WO2017097010A1 - Magnetic bearing frame and magnetic bearing

Info

Publication number: WO2017097010A1
Application number: PCT/CN2016/099703
Authority: WO
Inventors: 刘健宁; 张芳; 贾金信; 田思园; 张小波; 钟成堡; 龚高; 李广海; 郭长光
Original assignee: 珠海格力节能环保制冷技术研究中心有限公司
Priority date: 2015-12-11
Filing date: 2016-09-22
Publication date: 2017-06-15
Also published as: CN105351358A

Abstract

A magnetic bearing frame (1) comprises a ring-shaped frame body having a hollow structure. The frame body is configured to be wound by an operating coil. The frame body comprises: a base ring (2); a first edge member (3); and a second edge member (4). The first edge member (3) and the second edge member (4) are disposed at two sides of the base ring (2), respectively. Both the first edge member (3) and the second edge member (4) are higher than the base ring (2) in a radial direction of the frame body. The first edge member (3), the second edge member (4) and an outer side of the base ring (2) form a recess in a circumferential direction to store the operating coil. The frame can protect an insulating layer from being damaged.

Description

Magnetic suspension bearing skeleton and magnetic suspension bearing

Technical field

The invention relates to the technical field of magnetic suspension bearings, in particular to a magnetic suspension bearing skeleton and a magnetic suspension bearing.

Background technique

The magnetic suspension bearing uses magnetic force to suspend the rotor in the air so that there is no mechanical contact between the rotor and the stator. The winding of the existing magnetic suspension bearing is difficult, the winding direction is difficult to determine, the winding is difficult to position, the wire package is too high, and the winding between the winding and the bearing core is prone to wear and damage the insulating layer. In addition, for the immersion paint of the winding, the winding is generally immersed in the place other than the skeleton, and then entangled.

Summary of the invention

The object of the present invention is to provide a magnetic suspension bearing skeleton and a magnetic suspension bearing to solve the problem that the working coil in the prior art is prone to wear when exiting the wire.

To achieve the above object, the present invention provides a magnetic suspension bearing skeleton including an annular skeleton body having a hollow structure for winding a working coil, the skeleton body including a base ring, a first end piece, and a second An end piece, wherein the first end piece and the second end piece are respectively disposed on two sides of the base ring, in the radial direction of the skeleton body, the first end piece and the second end The end pieces are both higher than the base ring, and the first end piece and the second end piece form a groove in the circumferential direction with the outer side of the base ring to store the working coil.

Further, the skeleton body is provided with an outlet hole for the outlet of the working coil to solve the problem that the working coil in the prior art is prone to wear when exiting the wire.

Further, a first boss is further disposed on the end surface of the skeleton body, and the outlet hole extends along the first boss and penetrates the first boss.

Further, the outlet hole is an elongated hole.

Further, the skeleton body includes a base ring, a first end piece and a second end piece, wherein the first end piece and the second end piece are respectively disposed on two sides of the base ring, in the bone In the radial direction of the frame body, the first end piece and the second end piece are both higher than the base ring, and the first end piece and the second end piece are opposite to the outer side of the base ring A groove is formed in the circumferential direction to store the working coil.

Further, the first boss is disposed on an end surface of the first end piece, and the outlet hole is disposed on the first end piece and the first boss.

Further, the first end piece is provided with a second boss for positioning the magnetic suspension bearing skeleton.

Further, the first end piece and/or the second end piece are provided with a varnishing hole to dip the working coil located in the groove.

Further, the second end piece is provided with a winding mark to facilitate winding.

In order to achieve the above object, the present invention provides a magnetic suspension bearing comprising a bearing core and a magnetic suspension bearing skeleton as described above, the skeleton body being provided with an outlet hole for the outlet of the working coil, the bearing core and the magnetic suspension bearing skeleton Connected to each other, the bearing core is provided with a matching hole corresponding to the outlet hole.

Further, the magnetic suspension bearing skeleton further includes a first boss, the first boss is disposed on an end surface of the skeleton body, and the outlet hole extends along the first boss and penetrates the first protrusion The first boss is inserted into the fitting hole.

Further, the first end piece is provided with a second boss, and the bearing core is provided with a mounting hole corresponding to the second boss for the second boss to pass through to locate the magnetic suspension bearing skeleton .

Further, a screw is included that passes through the mounting hole and is screwed into the second boss.

Based on the above technical solution, the present invention can be used to wind a working coil by providing an annular skeleton body having a hollow structure, and a wire hole is arranged on the skeleton of the magnetic suspension bearing, so that the working coil can be out through the outlet hole, thereby preventing the working coil from being Wear and damage to the bearing core or other components during the exit, damage the insulation, reduce the service life of the working coil or affect the safe operation of the entire component.

DRAWINGS

The drawings described herein are provided to provide a further understanding of the invention and constitute the application. In part, the illustrative embodiments of the invention and the description thereof are intended to be illustrative of the invention and are not intended to limit the invention. In the drawing:

1 is a schematic perspective structural view of an embodiment of a magnetic suspension bearing skeleton of the present invention.

Figure 2 is a right side elevational view of the magnetic suspension bearing frame of the embodiment of Figure 1.

Figure 3 is a left side elevational view of the magnetic suspension bearing frame of the embodiment of Figure 1.

4 is a schematic view showing the structure of an embodiment of the magnetic suspension bearing skeleton of the present invention and the bearing core.

In the figure: 1-magnetic suspension bearing skeleton, 2-base ring, 3-first end piece, 4-second end piece, 5-first boss, 6-dip paint hole, 7-second boss, 8- Winding mark, 9-bearing core, 10-screw, 11-fitted hole.

detailed description

The technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. It is apparent that the described embodiments are only a part of the embodiments of the invention, and not all of them. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "upper", "lower", " The orientation or positional relationship of the indications of "upright", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present invention and The simplification of the description is not intended to be a limitation or limitation of the scope of the invention.

FIG. 1 is a schematic structural view of an embodiment of a magnetic suspension bearing skeleton according to the present invention. The magnetic suspension bearing skeleton 1 comprises an annular skeleton body having a hollow structure, the skeleton body is for winding a working coil, and the skeleton body is provided with an outlet hole for the working coil outlet.

By providing an annular skeleton body having a hollow structure, the working coil can be wound and a wire hole is arranged on the skeleton of the magnetic suspension bearing, so that the working coil can pass through the outlet. The hole is taken out to prevent the working coil from being worn out with the bearing core or other components when the wire is taken out, damaging the insulating layer, reducing the service life of the working coil or affecting the safe operation of the entire component.

In one embodiment, the magnetic suspension bearing frame 1 further includes a first boss 5 disposed on an end surface of the skeleton body, and the outlet hole extends along the first boss 5 And through the first boss 5 . Thus, when the magnetic suspension bearing frame 1 is coupled with other components, it can also ensure that the working coil outlet line comes out from the entry outlet hole to the outlet hole, and does not contact other components that are coupled with the magnetic suspension bearing frame 1 to prevent wear.

Preferably, the outlet hole is an elongated hole. Of course, the shape of the outlet hole is not limited thereto, and may be other shapes such as a circle or a square, and the elongated hole is advantageous for the outlet.

In order to limit the wire package formed by the working coil wound on the skeleton body, the skeleton body comprises a base ring 2, a first end piece 3 and a second end piece 4, wherein the first end piece 3 and the The second end pieces 4 are respectively disposed on two sides of the base ring 2, and the first end piece 3 and the second end piece 4 are higher than the base in the radial direction of the frame body. The ring 2, the first end piece 3 and the second end piece 4 and the outer side of the base ring 2 are circumferentially formed with grooves to store the working coil. The portion of the first end piece 3 and the second end piece 4 above the base ring 2 can confine the wire pack within the recess for facilitating winding and securing the working coil. The working coil is wound along the circumferential direction of the magnetic suspension bearing frame 1. After the winding, the working coil is fixed in the groove without displacement, and the height of the wire package can be strictly controlled to prevent the wire package from exceeding the bearing core 9.

In one embodiment, the first end piece 3 and the second end piece 4 are both annular plates having a hollow structure concentric with the base ring 2.

Based on the above structure, the first boss 5 is disposed on an end surface of the first end piece 3, and the outlet hole is disposed on the first end piece 3 and the first boss 5.

In the assembly process of the magnetic suspension bearing frame 1, the problem that the skeleton is difficult to locate often occurs. To solve this problem, as shown in FIG. 2, the first end piece 3 may be provided with a second boss 7 for positioning. The magnetic suspension bearing skeleton 1. That is, when assembling the magnetic suspension bearing frame 1, the second boss 7 and the corresponding hole of the bearing core 9 can be matched to achieve precise Positioning is convenient and fast.

In view of the inconvenience of the conventional dip coating method, it is difficult to completely immerse the paint in the enameled wire, and the present invention also improves the dip coating method of the working coil used in the magnetic suspension bearing. As shown in Fig. 3, a dip coating hole 6 is provided in the second end piece 4 to dip the working coil located in the groove. The setting of the dip coating hole 6 does not need to substantially modify the skeleton of the magnetic suspension bearing, and only the hole is formed in the second end piece 4, and the paint can penetrate from the hole to achieve the effect of completely immersing the enameled wire.

In one embodiment, three dip-coating holes 6 are provided in the second end piece 4. It is of course also possible to provide the dip-coating holes on the first end piece 3 or to simultaneously provide a dip-coating opening on the first end piece 3 and the second end piece 4.

As shown in FIG. 3, the second end piece 4 may further be provided with a winding mark 8 to facilitate winding. When the worker performs the winding, the winding is performed according to the direction of the winding mark 8, which can reduce the difficulty of winding, improve the winding efficiency, and reduce the risk of winding error. In one embodiment, the windings are labeled as arrows.

As shown in FIG. 4, the present invention also provides a magnetic suspension bearing comprising a bearing core 9 and the above-mentioned magnetic suspension bearing skeleton 1, wherein the bearing core 9 and the magnetic suspension bearing frame 1 are connected to each other, and the bearing core 9 is provided a matching hole 11 corresponding to the outlet hole.

The magnetic suspension bearing frame 1 further includes a first boss 5 disposed on an end surface of the skeleton body, the outlet hole extending along the first boss 5 and penetrating the first The boss 5 is inserted into the fitting hole 11. This allows the working coil to be completely out of contact with the bearing core 9 during the outgoing line, preventing wear.

For the connection between the bearing core 9 and the magnetic suspension bearing frame 1, a second boss 7 may be provided on the first end piece 3, and the bearing core 9 is provided with a corresponding corresponding to the second boss 7. A mounting hole for the second boss 7 to be inserted therein to position the magnetic suspension bearing frame 1.

Further, a screw 10 is passed through the mounting hole and screwed into the second boss 7 to fixedly connect the second boss 7 and the magnetic suspension bearing frame 1. For example, the screw 10 can be selected as a screw.

Through the description of various embodiments of the magnetic suspension bearing skeleton and the magnetic suspension bearing of the present invention, it can be seen that the magnetic suspension bearing skeleton and the magnetic suspension bearing embodiment of the present invention are directly wound on the skeleton, and are provided by the base ring, the first end piece and the first Groove structure composed of two end pieces, solution The problem that the magnetic suspension bearing is difficult to wind is determined; the wire hole is arranged on the first boss, the first boss is inserted into the matching hole on the bearing core, and the lead wire is positioned and protected to avoid damage to the insulating layer by friction with the bearing core when the wire is taken out; By setting the second boss, the difficulty of positioning the magnetic suspension bearing winding is solved; the winding mark is arranged on the skeleton to determine the winding direction; the dip coating hole provided on the second end piece makes the dipping paint easy, and the bearing part is eliminated. The situation of dipping paint.

It should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention and are not intended to be limiting; although the present invention has been described in detail with reference to the embodiments, those of ordinary skill in the art DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Modifications or equivalent substitutions of some of the technical features are possible without departing from the spirit of the present invention, and should be included in the scope of the claimed invention.

Claims

A magnetic suspension bearing skeleton (1), comprising: an annular skeleton body having a hollow structure, the skeleton body is for winding a working coil, and the skeleton body comprises a base ring (2) and a first end piece (3) And a second end piece (4), wherein the first end piece (3) and the second end piece (4) are respectively disposed on two sides of the base ring (2), in the skeleton body In the radial direction, the first end piece (3) and the second end piece (4) are both higher than the base ring (2), the first end piece (3) and the second end The member (4) forms a groove in the circumferential direction with the outer side of the base ring (2) to store the working coil.
The magnetic suspension bearing skeleton (1) according to claim 1, wherein the skeleton body is provided with an outlet hole for the outlet of the working coil.
The magnetic suspension bearing skeleton (1) according to claim 2, further comprising a first boss (5), the first boss (5) being disposed at an end surface of the skeleton body, the outlet hole Extending along the first boss (5) and penetrating the first boss (5).
The magnetic suspension bearing skeleton (1) according to claim 2, wherein the outlet hole is elongated.
The magnetic suspension bearing skeleton (1) according to claim 3, wherein the first boss (5) is disposed at an end surface of the first end piece (3), and the outlet hole is disposed in the first One end piece (3) and the first boss (5).
The magnetic suspension bearing skeleton (1) according to claim 1, characterized in that the first end piece (3) is provided with a second boss (7) for positioning the magnetic suspension bearing skeleton (1).
The magnetic suspension bearing skeleton (1) according to claim 1, characterized in that the first end piece (3) and/or the second end piece (4) are provided with a varnishing hole (6) to The working coil located in the groove is dipped.
The magnetic suspension bearing skeleton (1) according to claim 1, characterized in that the second end piece (4) is provided with a winding mark (8) for facilitating winding.
A magnetic suspension bearing characterized by comprising a bearing core (9) and a magnetic suspension bearing skeleton (1) according to claim 1, the skeleton body being provided for the working line The bearing hole (9) and the magnetic suspension bearing frame (1) are connected to each other, and the bearing core (9) is provided with a matching hole (11) corresponding to the outlet hole.
The magnetic suspension bearing according to claim 9, characterized in that the magnetic suspension bearing skeleton (1) further comprises a first boss (5), the first boss (5) being disposed at an end surface of the skeleton body, The outlet hole extends along the first boss (5) and penetrates the first boss (5), and the first boss (5) is inserted into the fitting hole (11).
The magnetic suspension bearing according to claim 9, characterized in that the first end piece (3) is provided with a second boss (7), and the bearing core (9) is provided with the second boss ( 7) A corresponding mounting hole for the second boss (7) to pass therethrough to position the magnetic suspension bearing skeleton (1).
A magnetic suspension bearing according to claim 11, characterized in that it comprises a screw (10) which passes through the mounting hole and is screwed into the second boss (7).