CN215989588U

CN215989588U - High-power commutator

Info

Publication number: CN215989588U
Application number: CN202122520658.3U
Authority: CN
Inventors: 艾发明; 罗斌; 江阿毛; 饶振汉; 陈军; 江小保
Original assignee: Jiangxi Mingde Electric Appliance Co ltd
Current assignee: Guixi Guangxin New Energy Technology Co ltd
Priority date: 2021-10-19
Filing date: 2021-10-19
Publication date: 2022-03-08
Anticipated expiration: 2031-10-19

Abstract

The utility model provides a high-power commutator which comprises commutator segments, mica sheets and a support sleeve, wherein the commutator segments and the mica sheets are distributed in the outer circumferential direction of the support sleeve at intervals, the bottom of each commutator segment is provided with a trapezoidal limiting plate, the outer circle of the support sleeve is provided with a groove, the limiting plate is matched with the groove, an insulating layer is arranged between each commutator segment and the support sleeve, a fixing pin is arranged along the axial direction of the support sleeve, the fixing pin penetrates through the limiting plate, and two ends of the fixing pin are positioned in the support sleeve. The utility model solves the problem that the commutator segment of the high-power commutator is easy to jump under the working condition of high rotating speed.

Description

High-power commutator

Technical Field

The utility model relates to the technical field of commutators, in particular to a high-power commutator.

Background

An important component of dc motor and ac commutator motor armatures. The motor plays a role in reversing when rotating. The commutator is a component which is used for current commutation on a direct current motor and an alternating current series motor and is used for enabling the motor to continuously rotate downwards, and is commonly called as a commutator.

For a high-power motor commutator, because the current born during working is large, and the radial thickness of a commutator segment needs to be designed to be wider, the weight of the commutator segment is heavy, the rotational inertia is increased, and the segment jump fault is easy to occur on high-rotating-speed working occasions.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The present invention aims to provide a high power commutator having the function of solving the above problems. In order to achieve the purpose, the utility model adopts the following technical scheme:

(II) technical scheme

The utility model provides a high-power commutator, includes commutator segment, mica sheet and supports the cover, the commutator segment with mica sheet interval distribution in support the outer circumferencial direction of cover, the commutator segment bottom is equipped with trapezoidal limiting plate, it has the recess to support the cover excircle to open, the limiting plate with recess looks adaptation, the commutator segment with telling and supporting and being equipped with the insulating layer between the cover, follow it is equipped with the fixed pin to support cover axial direction, the fixed pin runs through the limiting plate, both ends are located support in the cover.

By adopting the technical scheme, the trapezoidal limiting plate is matched with the groove; and the fixing pin is used for stringing the limiting plate and the supporting sleeve together. The connection of the commutator segment and the supporting sleeve is ensured to be reliable, and the phenomenon of segment jumping can not occur, so that the commutator segment is suitable for the working condition of higher rotating speed.

Further set up as, the fixed pin is the cylindric lock, it is the through-hole to support the cover to be equipped with the pinhole, the fixed pin with support the cover with the limiting plate is interference fit.

Through adopting above-mentioned technical scheme, the fixed pin is interference fit with supporting cover and limiting plate, firm in connection, and the through-hole is used for dismantling the fixed pin.

The fixed pin is a taper pin, the supporting sleeve is spaced from the top end of the fixed pin, a dismounting hole is formed in the top end of the fixed pin, a threaded hole is formed in the bottom end of the fixed pin, and a bolt is connected in the threaded hole in a threaded manner.

Through adopting above-mentioned technical scheme, it is more convenient to adopt the taper pin structure to dismantle to being furnished with the bolt, can effectively preventing the fixed pin from being thrown away, guaranteeing connection quality.

Further, the fixing pin is made of insulating ceramic, and a stainless steel column core is arranged inside the fixing pin.

Through adopting above-mentioned technical scheme, guaranteed insulating effect, the post core has improved the connection toughness of fixed pin.

Further, the number of the limiting plates is one or two.

Through adopting above-mentioned technical scheme, limiting plate quantity is too much, has reduced the intensity of commutator segment self.

The commutator segment is further arranged to be in an elbow shape, and the elbow part is provided with a process U-shaped groove.

By adopting the technical scheme, the process U-shaped groove is convenient for connecting the copper wire winding.

(III) advantageous effects

In conclusion, the connection between the commutator segment and the support sleeve is reliable, the segment jumping is avoided, and the utility model is suitable for the working condition with higher rotating speed.

Drawings

The utility model will be further described with reference to the following examples with reference to the accompanying drawings.

FIG. 1 is a schematic structural view of an embodiment;

FIG. 2 is a schematic structural view of the second embodiment;

FIG. 3 is a cross-sectional view of a retaining pin;

FIG. 4 is a top view of the novel model of the experiment.

The reference numbers illustrate: 1. a support sleeve; 2. a commutator segment; 3. a limiting plate; 4. a fixing pin; 5. an insulating layer; 6. disassembling the hole; 7. a threaded hole; 8. a bolt; 9. a through hole; 10. a column core; 11. a process U-shaped groove; 12. mica sheet.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The utility model is further described with reference to the following detailed description and accompanying drawings.

In a first specific embodiment, referring to fig. 1, 3 and 4, a high-power commutator includes a commutator segment 2, a mica sheet 12 and a support sleeve 1, wherein the commutator segment 2 is in an elbow shape, and the elbow portion is provided with a process U-shaped groove 11 for facilitating connection of a motor winding. The commutator segments 2 are insulated and separated by the mica sheets 12 and distributed in the outer circumferential direction of the support sleeve 1. The bottom of the commutator segment 2 is provided with a trapezoidal limiting plate 3, and the number of the limiting plates 3 is one or two. The excircle of the supporting sleeve 1 is provided with a groove, the limiting plate 3 is matched with the groove, and an insulating layer 5 is arranged between the commutator segment 2 and the supporting sleeve 1, so that the commutator segment 3 and the supporting sleeve 1 are mutually insulated. Follow support 1 axial direction of cover and be equipped with fixed pin 4, fixed pin 4 is made by insulating ceramic, for making 4 intensity toughness of fixed pin with high, is equipped with stainless steel post core 10 in its inside. The fixing pin 4 penetrates through the limiting plate 3, and two ends of the fixing pin are respectively fixedly positioned in the support sleeve 1. The fixing pin 4 is the cylindric lock, it is through-hole 9 to support the cover 1 to be equipped with the pinhole, the fixing pin 4 with support the cover 1 with limiting plate 3 is interference fit, guarantees that the cylindric lock 4 has sufficient joint strength to between segment 2 and the support cover 1.

In the second embodiment, referring to fig. 2 to 4, a high-power commutator includes a commutator segment 2, a mica sheet 12 and a support sleeve 1, where the commutator segment 2 is in an elbow shape, and the elbow is provided with a U-shaped groove 11 for connecting a winding of a motor. The commutator segments 2 are insulated and separated by the mica sheets 12 and distributed in the outer circumferential direction of the support sleeve 1. The bottom of the commutator segment 2 is provided with a trapezoidal limiting plate 3, and the number of the limiting plates 3 is one or two. The excircle of the supporting sleeve 1 is provided with a groove, the limiting plate 3 is matched with the groove, and an insulating layer 5 is arranged between the commutator segment 2 and the supporting sleeve 1, so that the commutator segment 3 and the supporting sleeve 1 are mutually insulated. Follow support 1 axial direction of cover and be equipped with fixed pin 4, fixed pin 4 is made by insulating ceramic, for making 4 intensity toughness of fixed pin with high, is equipped with stainless steel post core 10 in its inside. The fixing pin 4 penetrates through the limiting plate 3, and two ends of the fixing pin are respectively fixedly positioned in the support sleeve 1. The fixed pin 4 is a taper pin, and the supporting sleeve 1 is away from the top end of the fixed pin 4 and is provided with a dismounting hole 6, so that the taper pin can be conveniently ejected and dismounted. Support cover 1 apart from 4 bottom of fixed pin are equipped with screw hole 7, screw hole 7 female connection bolt 8 prevents that the commutator from moving and making fixed pin 4 thrown away, plays the effect of further fixing fixed pin 4.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.

Claims

1. The utility model provides a high-power commutator, includes commutator segment (2), mica sheet (12) and supports cover (1), commutator segment (2) with mica sheet (12) interval distribution in the outer circumferencial direction of supporting cover (1), its characterized in that: commutator segment (2) bottom is equipped with trapezoidal limiting plate (3), it has the recess to support set (1) excircle to open, limiting plate (3) with recess looks adaptation, commutator segment (2) with support and be equipped with insulating layer (5) between set (1), follow support set (1) axial direction and be equipped with fixed pin (4), fixed pin (4) run through limiting plate (3), both ends are located support set (1) is interior.

2. A high power commutator as defined in claim 1 wherein: the fixing pin (4) is a cylindrical pin, the supporting sleeve (1) is provided with a pin hole which is a through hole (9), and the fixing pin (4) is in interference fit with the supporting sleeve (1) and the limiting plate (3).

3. A high power commutator as defined in claim 1 wherein: the fixed pin (4) is a taper pin, the supporting sleeve (1) is arranged at the distance from the top end of the fixed pin (4) and provided with a dismounting hole (6), the supporting sleeve (1) is arranged at the distance from the bottom end of the fixed pin (4) and provided with a threaded hole (7), and the threaded hole (7) is internally connected with a bolt (8).

4. A high power commutator according to claim 2 or 3, wherein: the fixing pin (4) is made of insulating ceramics, and a stainless steel column core (10) is arranged inside the fixing pin.

5. A high power commutator as defined in claim 1 wherein: the number of the limiting plates (3) is one or two.

6. A high power commutator as defined in claim 1 wherein: the commutator segment (2) is of an elbow shape, and the elbow part is provided with a technical U-shaped groove (11).