JPS63502157A - Protruding pole rotor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Technique J mouth close- TECHNICAL FIELD This invention relates generally to electrical devices, and in particular to generators or other electrical machines. The present invention relates to a protruding pole rotor for use.

11 to 11 In an electrical device, such as a two salient pole synchronous generator rotor, with an AC winding The stator is arranged to provide a pulsating or rotating multipolar magnetic field, and the rotor is An electrical winding in which magnetic material is arranged is provided. This is called the parallel axis position. When the stator is in one position with respect to the magnetic field supplied by the stator windings, A path of low reluctance is provided for the magnetic flux from the motor. On the other hand, with the orthogonal axis position When the rotor is in the 90” electrical position for this position, called The majority of zero reaction motors are supplied with a path of high reluctance for the magnetic flux G from In the rotor, two protruding poles are provided.1 Usually, the rotor has a stator magnet. There are as many protruding pole portions as there are magnetic poles in the field.

Traditionally, rotor core and winding assemblies drive the rotor and other parts of electrical equipment. It is located between a pair of end shafts and/or end plates that are connected in a dynamic relationship. The rotor core is , to the end shaft and/or end plate by some configuration means to transmit the torque. It is connected. Often, the configuration means are threaded through a torque tube or rotor core. It consists of a shaft that extends in the normal axial direction. Torque to support rotor structure The tube or shaft extends between the end plates or the end shaft means itself. This type of structural support, which may consist of an extension, is suitable for relatively low power electrical equipment. It is sufficient for However, by obstructing the magnetic flux path through the rotor axis, Significant flux path problems arise. For high power electrical equipment requiring high saturation magnetic fields It is most often necessary to provide an unobstructed magnetic flux path through the rotor shaft. It is. This is a thin material that cannot be used as a structural or torque transmitting component. This is a particular truth when the core is constructed of plates. This problem works with generators, e.g. For example, this can be understood when designing in the range of 30 to 90 KV^.

Some electrical devices, such as generators, have cooling oil around their rotor parts. A "can" is used to hold the thin film of the rotor core. between the end plates Since the can opening is used as a component or frame structure for the elongated rotor, there are many Numerous attempts have been made. However, for example when used in high power or highly saturated generators. In this case, the can has to be relatively thick, so there is no space between the rotor core and the armature core. This creates inefficient voids.

This invention uses a new structure of support means between the end shafts of the rotor and solves the above problems. A new and improved rotor structure is provided.

North W car Accordingly, one object of the invention is to provide an unobstructed magnetic flux path through the rotor shaft. The object of the present invention is to provide a mouth structure having unique support means.

In an exemplary embodiment of the invention, the two salient pole rotors are connected to a generator or other electrical machine. is disclosed for use with a digital device. The solid core supports the rotor and its rotating shaft. extending longitudinally through the rotor shaft to provide an unobstructed magnetic flux path through the rotor shaft. this The core has a pair of diametrically disposed and axially extending holes along its circumferential length. Has grooves.

The pair of end shaft means including the end plate means have complementary groove means coordinating with the grooves of the core. have A pair of structural support wedge members are mounted with a gap radially from the rotor axis. extending in the length direction of the motor and disposed in the groove in the core and in the groove means in the end plate means. .

The core is of FHMA construction and provides high saturation flux. The wedge member is connected to the end plate means. The rotor is fixed by welding within the groove means and the rotor has an orientation of the membrane between the core and the end plate means. including end support means fixed to the mating ends, the rectangle of the core relative to the outside diameter of the rotor; Control form. the end support means includes groove means for accommodating the wedge member; The end plate means and the end support means are typically disc-shaped, of substantially equal diameter, and have a rotor shape. provides a cylindrical boundary for the data. of the groove means in the plate means and in the end support means; The depth, thickness, and outer circumference shape of the wedge member are such that the outer circumference of the wedge member is A continuous shape is formed around the circumference of the step. The cylindrical “can” is It is located about the rotor extending between the end plate means. This can is relatively thin and rotary. Minimize the air gap between the rotor core and stator armature. Because the can rotor This is because it does not have any structural or torque transmitting parts.

Other objects, features and advantages of the invention will be apparent from the following description together with the accompanying drawings. Probably.

Easy terrorist drawing The features of this invention believed to be novel are set forth in the appended claims. ing. The present invention, together with its objects and advantages, is described in the drawings and the following description. In the drawings, like reference numerals appear in the drawings. FIG. 1 shows the rotor core and rotor end of the present invention. Oblique, parent view showing end support means; Figure 2 shows the assembled rotor with the rotor support wedge means removed; A perspective view of FIG. 3 is a perspective view similar to FIG. 2, showing the suspension in which the support wedge member is assembled and fixed; figure, Figure 4 is similar to Figure 3 showing the can assembled around most of the rotor components. Similar perspective views, FIGS. 5-7', illustrate other embodiments of the invention, FIGS. 1-7'. FIG. 3 is a perspective view similar to FIG. 3;

l　;4t;day Hereinafter, to explain in more detail with reference to the drawings, the rotor of the present invention can be used as a generator or Shown as constructed with two salient pole rotors for use with other electrical equipment Ru. The completed rotor assembly, indicated generally at 10, is shown in FIG. 4 in its final assembled condition. Illustrated. Referring to FIG. 1, the rotor has a solid core generally indicated at 12. , the solid core having a central core portion 14 and projecting diametrically opposite each other. This invention is particularly useful for high power or It should be immediately pointed out that it is employed as a highly saturated magnetic device. Therefore , the core 12 including the central portion 14 and the seed portions 16 and 18 are bonded thin films. In this specification and claims, the term "solid" A is used to mean a core with an unobstructed magnetic flux path through the rotor axis. ing.

Terminal support members 20 are provided at opposite ends of core 12, thereby providing Its axial outer circumferential surface allows controlling the parallelism of the core to the outer diameter of the rotor. Processed. Hole 22 receives a pierced rod, as described below. To hold the parts together as an assembly, the end support member 20 and the seeds of the thin film core 12 are attached. through portions 16 and 18.

A pair of thin film cores 12 are disposed diametrically and extend axially along the outer circumferential length. It can be seen from FIG. 1 that the groove 24 is formed. The support member 20 actually is a portion of the disk-shaped member that brings the groove means 26 into alignment with the groove 24 of the core 12. I don't understand. The rotor winding 2 is defined by the groove 24 and the end support portion 20. The groove means 26 is wrapped around a central core portion within the groove means 26.

Referring to FIG. 2, the terminal shaft means, indicated generally at 30, includes rotor 12 and and at opposite ends of the support portion 20. The terminal shaft means 30 includes: The rotor may have a shaft spline portion 31 at one end, as well as However, it may have a bearing generally in the position shown at 30a, and may also have a The rotor has a shaft 34 fitted with a bearing (not shown) at the other end of the rotor. Good too.

Each terminal shaft means 30 includes a terminal plate 32, where the term "shaft means" The use requires that the actual end shaft portion or end bearing be isolated from the end plate. It should be understood that this is used in the sense of a rotor assembly. Other power transmission The end piece may be coupled to end plate means such as end plate 32 within the rotor assembly. Are known.

Each end plate 32 includes a groove 24 in the core 12 between the core end support portions 20 and a groove means 2. A groove means 36 is provided so as to be in line with 6. These grooves and groove means , a pair of structural support wedge members 38 extending along the length of the rotor are radially aligned with each other. Accept and position it so that it is spaced apart. Each wedge member 38 has a central core portion 14 and through the opposite wedge member to allow the wedge member to fit into the groove. means 24. receiving the bolt 42 to be penetrated and holding it in position within the means 24, 26 and 36; It has a hole 40 for opening. Also, Figure 2 shows the rod that is passed through the end plate on the opposite side. Core end support portion for receiving 48 and retaining components in the axial assembly Figure 1 shows an axial hole 46 in end plate 32 that is in line with hole 22 in 20 (FIG. 1). , each wedge member 38 has a pair of extension recesses 49 inside to accommodate the winding 28. have

FIG. 3 shows a wedge member 38 positioned within groove 24 within core 12, end support portion 2 0 and groove means 36 in the end plate 32 of the end shaft means 30. 2 and 3 that the outer peripheral surface of each wedge member 38 is generally cylindrical. It can be understood from The end plate 32 and end support portion 20 are generally sun-shaped. Ku The outer peripheral surface of the rust member is a circle that complements the shape of the end plate and the end support portion, as shown in the figure. It is the shape.

When unassembled, as shown, wedge member 38 is generally shown at 50. , is permanently secured within the rotor assembly by welding to the end plate 32.

FIG. 4 shows the completed salient pole rotor 10 in its final construction, with terminations around the rotor. Includes a "can" 52 extending between the plates 32.

This can is sealed and fixed to the outer periphery of the end plate 32 and is connected to the rotor core 12 and the end plate 32. It is press-fitted into the outer periphery of the end support portion 20. This can is used to load cooling oil for core parts. It is provided only to hold the thin film of the rotor core.

This can is thin and provides the torque transmission function provided by the wedge member 38. No, access means for oil supply and recovery are provided as before. Yes, but not shown.

5-7 show a modified configuration of the present invention in which the wedge member 38A is attached to the end plate. 32 and extending all the way to its outer circumferential surface. Similarly, the groove means 36A may be longer. Extending axially through the width of the end plate for receiving a wedge member. So In addition, similar reference numerals indicate similar parts to those described in connection with the embodiments of FIGS. 1 to 3. attached to the product.

As mentioned above, salient pole rotors provide an unobstructed magnetic flux path through the rotor shaft. It can be seen that a novel support structure is provided to Wedge member 38 This support structure includes a core end support portion and a peripheral boundary of the shaft end support means. limited within. This structure only needs to be fixed in a sealed position. allows the use of a relatively thin hydraulic bar 52 which also reduces the structural components of the rotor assembly. The thinness of the hydraulic bar minimizes the air gap between the rotor core 12 and the stator core 12. limit.

The invention may be embodied in other distinctive forms without departing from its spirit or central characteristics. It will be appreciated that the examples and embodiments described herein may be , should be considered in all respects as illustrative and non-specific.2 This invention It should not be limited to the detailed shapes shown here.

Submission of translation of written amendment (Article 184-7, Paragraph 1 of the Patent Law) August 21, 1986 1. International application number PCT/US 86102769 2. Name of the invention protruding pole rotor 3. Patent applicant Name: Sundstrand Corporation 4, Agent Address: Marunouchi Building 4, 2-4-1 Marunouchi, Chiyoda-ku, Tokyo 100 floor [Telephone: Tokyo (216) 5811 Representative] 5. Date of submission of amendment May 18, 1986 6. List of attached documents Translation of written amendment Scope of request (amendment) 1. Through an unobstructed magnetic flux path extending along the length of the rotor and through the rotor axis. an elongated solid core and a pair of terminal shafts substantially abutting opposite terminal ends of said core; foot means; The groove has a shape that complements the groove, extends in the length direction of the rotor, and is spaced apart from the axis in the radial direction. and an elongated structural wedge member disposed within the groove; Equipped with The core has an axially extending groove along its circumferential length, and the wedge member has an axially extending groove along its circumference. The mating ends are rigidly fixed to the end shaft means to provide a lock between the end shaft means. provide structural support for the data; Salient pole rotor for use with generators or other electrical equipment.

2. The protruding pole rotor according to claim 1, wherein the core includes a bipolar thin film.

3゜ 4. Each said terminal shaft means receives and secures opposite terminal ends of the wedge member. The protruding pole rod according to claim 1, further comprising end plate means having row means for determining the protruding pole rod. Data.

5. The wedge member is fixed within the groove means of the end plate means by welding. The protruding pole rotor according to item 4.

6. between said core and said end plate means, a termination fixed to opposite ends of the core; including end support means, said end support means having row means for accommodating the wedge member. A protruding pole rotor according to claim 4.

7. The wedge member is fixed within the groove means of the end plate means by welding. The protruding pole rotor according to item 6.

8. Claim 6 or 8, wherein the end plate means and the end support means are generally disc-shaped; The protruding pole rotor according to item 7.

9. Claim that the outer peripheral surface of the wedge member is annular to complement the circular periphery of the end plate means. The protruding pole rotor according to item 8.

10. A relatively thin, non-structural circle extending around the rotor and between the end plate means. The protruding pole rotor according to claim 4, comprising a cylindrical can.

11. The wedge member has an inner diameter for accommodating the rotor winding around the core. A protruding pole rotor according to claim 1, wherein the sides are concave.

12. A pair of said wedge members disposed diametrically on opposite sides of the rotor. A protruding pole rotor according to claim 1, comprising:

13, extending along the length of the rotor and passing an unobstructed magnetic flux path through the rotor axis. said core having a solid core extending from said core and an auxiliary row means in line with a groove in said core; a pair of terminal shaft means including terminal plate means substantially abutting opposite terminal ends of the and, a core extending along the length of the rotor and radially spaced from the axis thereof and within the end plate means; and a pair of elongated structural support wedge members disposed within the grooves in the groove means. Prepare, The core has a pair of diametrically disposed grooves extending axially along a circumferential length. the wedge member is rigidly secured to the end plate means and the wedge member is rigidly secured to the end shaft means. a generator or other electrical device that provides structural support for the rotor between Protruding pole rotor used together.

14. The protruding pole rotor according to claim 13, wherein the wedge member includes one membrane having two diameters.

15. The wedge member is fixed within the groove means of the end plate means by welding. The protruding pole rotor according to item 13.

16, between the core and said end plate means, fixed to opposite ends of said core; including an end support means, said end support means comprising a row means for receiving a wedge member; 14. The protruding pole rotor according to claim 13.

17. The claim that the wedge member is fixed within the groove means of the end plate means by welding. The protruding pole rotor according to item 16.

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Claims (28)

[Claims] 1. through an unobstructed magnetic flux path extending along the length of the rotor and through the rotor axis. an elongated solid core and a pair of terminal shaft means at opposite ends of the core. extending the length of the rotor, radially spaced from its axis, and terminating in opposite ends; a structural support means rigidly secured to the end shaft means; A salient pole rotor for use with a generator or other electrical device, comprising: 2. 2. A protruding pole rotor according to claim 1, wherein said core is provided with a bipolar thin film. 3. The support means extends between and is fixed to the opposite ends. at least one elongated wedge member, the core for receiving the wedge member; The protruding pole row according to claim 1, further comprising a groove extending axially along the circumferential length of the protruding pole row. Ta. 4. Each said terminal shaft means receives and secures opposite terminal ends of the wedge member. The protruding pole rod according to claim 3, further comprising end plate means having groove means for defining the protruding pole rod. Data. 5. The wedge member is secured within the groove means of the end plate means by welding. The protruding pole rotor according to item 4. 6. between the core and said end plate means. terminators fixed to opposite ends of said core. including end support means. The end support means includes groove means for accommodating a wedge member. A protruding pole rotor according to claim 4. 7. The wedge member is secured within the groove means of the end plate means by welding. The protruding pole rotor according to item 6. 8. Claim 6 or 6, wherein the end plate means and the end support means are generally disc-shaped; The protruding pole rotor according to item 7. 9. Claims: The outer peripheral surface of the wedge member is annular to complement the circular periphery of the end plate means. The protruding pole rotor according to item 8. 10. a relatively thin, non-structural circle extending around the rotor and between the end plate means; The protruding pole rotor according to claim 4, comprising a cylindrical can. 11. The wedge member has an inner diameter for accommodating rotor windings around the core. 4. A protruding pole rotor according to claim 3, wherein the sides are concave. 12. a pair of wedge members arranged diametrically on opposite sides of the rotor; A protruding pole rotor according to claim 3. 13. Extending the length of the rotor and providing an unobstructed magnetic flux path through the rotor axis a solid core extending across the core and having auxiliary groove means in line with the grooves in the core; a pair of terminal shaft means including terminal plate means at mating terminal ends; a core extending along the length of the rotor and radially spaced from the axis thereof and within the end plate means; and a pair of structural support wedge members disposed within the grooves in the groove means; Equipped with The core has a pair of diametrically disposed grooves extending axially along a circumferential length. wherein the wedge member is firmly fixed to the end plate means; Salient pole rotor for use with generators or other electrical equipment. 14. 14. The protruding pole rotor according to claim 13, wherein said core includes two pole thin plates. 15. Claims wherein the wedge member is fixed within the groove means of the end plate means by welding. The protruding pole rotor according to item 13. 16. between the core and said end plate means, secured to opposite ends of said core; including an end support means, said end support means having a groove means for receiving a wedge member; 14. The protruding pole rotor according to claim 13. 17. Claims wherein the wedge member is fixed within the groove means of the end plate means by welding. The protruding pole rotor according to item 16. 18. Claim 16, wherein the end plate means and the end support means are generally disc-shaped. Or the protruding pole rotor according to item 17. 19. Claims wherein the outer peripheral surface of the wedge member is annular to complement the circular periphery of the end plate means. 19. The protruding pole rotor according to item 18. 20. Extends around the rotor and between the end plates. Relatively thin and unstructured cylindrical 14. A protruding pole rotor according to claim 13, comprising a can. 21. The wedge member has an inner diameter for accommodating rotor windings around the core. 14. A salient pole rotor according to claim 13, wherein the sides are concave. 22. The rotor includes termination plates at opposite ends of the rotor core and In a protruding pole rotor for use in a mechanical device, the support means is located opposite the rotor core. a pair of wedges of non-magnetic material disposed axially in grooves on the mating sides; The rust extends axially beyond each core termination and on opposite sides of said termination plate. A protruding pole rotor fixed within an auxiliary groove means. 23. 23. The protruding pole rotor according to claim 22, wherein said core comprises two pole thin films. 24. Claim 22, wherein the wedge is secured within the groove means of the end plate by welding. Protruding pole rotor as described. 25. 23. A salient pole rotor as claimed in claim 22, wherein the end plate is generally disc-shaped. 26. Claim 25: The outer peripheral surface of the wedge is annular to complement the circular periphery of the end plate. Protruding pole rotor as described in section. 27. The wedge is concave on the inside to accommodate the rotor windings around the core. 23. A protruding pole rotor according to claim 22. 28. a relatively thin, unstructured cylindrical shape extending around the rotor and between the end plates 23. A salient pole rotor according to claim 22, comprising a can.