CN213636555U

CN213636555U - High-power motor commutator

Info

Publication number: CN213636555U
Application number: CN202022440518.0U
Authority: CN
Inventors: 陈建信
Original assignee: Ruian Bonuo Electromechanical Co ltd
Current assignee: Ruian Bonuo Electromechanical Co ltd
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2021-07-06
Anticipated expiration: 2030-10-29

Abstract

The utility model relates to a commutator technical field specifically is a high-power motor commutator, which comprises a housin, the dovetail groove has been seted up in the outside of casing, the outside of dovetail groove is provided with fixed backing plate, the outside fixedly connected with commutator segment of fixed backing plate, the inside fixedly connected with metal bush of casing, the spacing post of inside fixedly connected with of metal bush, the both ends of spacing post are provided with and separate the baffle, the inside of spacing post is provided with the heat insulating mattress, the outside fixedly connected with fixed pin of spacing post, the inside of casing is provided with the strengthening frame, the inside fixedly connected with cooperation button head of casing, the outside fixedly connected with mica sheet of commutator segment. The utility model discloses a trapezoidal groove's the outside is provided with fixed backing plate, fixed backing plate's outside fixedly connected with commutator segment, and the inside of casing is provided with the strengthening frame, and the inside fixedly connected with cooperation button head of casing prevents that the commutator segment from taking place deformation under high-speed operation to can make the commutator segment be in stable state.

Description

High-power motor commutator

Technical Field

The utility model relates to a commutator technical field specifically is a high-power motor commutator.

Background

The commutator is widely applied to motors and electric tool products, and the basic structure of the commutator is as follows: the commutator is divided into a plane commutator, a groove commutator and a hook commutator, and mainly comprises an insulating base body and commutator segments distributed on the circumferential surface of the base body, wherein an insulating groove is arranged between adjacent commutator segments to separate and insulate each commutator segment, and one end bending part of each commutator segment is used for wiring.

But can make whole commutator unable normal work when the commutator segment breaks down, because under high-power high-speed operation, the commutator segment receives stronger centrifugal force to temperature under high-speed operation is higher, the inside of commutator is easily by the extrusion deformation, if the functioning speed is very fast moreover, the phenomenon that inner structure and outside structure take place relative movement appears very easily, inner structure and outside structure rotation desynchrony promptly, are unfavorable for using under powerful condition.

In order to solve the problems, the application provides a high-power motor commutator.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem who exists among the background art, the utility model provides a high-power motor commutator has high-speed stable characteristics.

For solving the technical problem, the utility model provides a high-power motor commutator, which comprises a housin, the dovetail groove has been seted up in the outside of casing, the outside of dovetail groove is provided with fixed backing plate, fixed backing plate's outside fixedly connected with commutator segment, the inside fixedly connected with metal bush of casing, the spacing post of inside fixedly connected with of metal bush, the both ends of spacing post are provided with at a distance from the baffle, the inside of spacing post is provided with the heat insulating mattress, the outside fixedly connected with fixed pin of spacing post, the inside of casing is provided with the additional strengthening, the inside fixedly connected with cooperation button head of casing, the outside fixedly connected with mica sheet of commutator segment.

Preferably, the matching round head is matched and connected with the metal bushing.

Preferably, the baffle plate is in contact connection with two sides of the commutator segment.

Preferably, the fixing pin penetrates through the inside of the shell inwards, and the fixing pin is in interference fit with the shell.

Preferably, the reinforcing frame is in a shape of a Chinese character 'ji', and the reinforcing frame is in contact connection with the cylindrical surface of the limiting column.

Preferably, the two ends of the limiting column are provided with matching holes, and the fixing pin is in interference fit with the matching holes.

Preferably, two ends of the reinforcing frame are abutted with the fixed base plate.

The above technical scheme of the utility model has following profitable technological effect:

1. the utility model discloses a the outside of dovetail groove is provided with fixed backing plate, the outside fixedly connected with commutator segment of fixed backing plate, the inside of casing is provided with the strengthening frame, the inside fixedly connected with cooperation button head of casing prevents that the commutator segment from taking place deformation under high-speed operation to can make the commutator segment be in stable state.

2. The utility model discloses an inside of spacing post is provided with the heat insulating mattress, the outside fixedly connected with fixed pin of spacing post prevents to produce great heat influence normal work under high-power on the one hand, prevents that the device from taking place to damage to can prevent that spacing post and casing from taking place relative displacement under the high-speed operation.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic structural view of a middle position-limiting post of the present invention;

fig. 3 is a schematic top view of the present invention.

Reference numerals:

1. a housing; 2. matching with a round head; 3. a metal bushing; 4. a limiting column; 5. fixing the base plate; 6. a commutator segment; 7. a trapezoidal groove; 8. a baffle plate; 9. a fixing pin; 10. a reinforcing frame; 11. mica sheets; 12. a mating hole; 13. a heat insulating pad.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings.

As shown in figures 1-3, the utility model provides a high-power motor commutator, which comprises a housing 1, a trapezoidal groove 7 is arranged on the outer side of the housing 1, a fixed backing plate 5 is arranged on the outer side of the trapezoidal groove 7, a commutator segment 6 is fixedly connected on the outer side of the fixed backing plate 5, a metal bushing 3 is fixedly connected on the inner side of the housing 1, a spacing column 4 is fixedly connected on the inner side of the metal bushing 3, two ends of the spacing column 4 are provided with baffle plates 8, a heat insulation pad 13 is arranged on the inner side of the spacing column 4, a fixed pin 9 is fixedly connected on the outer side of the spacing column 4, a reinforcing frame 10 is arranged on the inner side of the housing 1, a matching round head 2 is fixedly connected on the inner side of the commutator segment 6, a mica sheet 11 is fixedly connected on the outer side of the commutator segment 6, the whole device can prevent the commutator segment 6 from deforming under high-speed operation, can make, the device is prevented from being damaged, and the relative displacement between the limiting column and the shell under high-speed operation can be prevented.

As shown in fig. 1, the fitting round head 2 is fitted and connected with the metal bush 3, so that the metal bush 3 and the casing can keep running synchronously.

Furthermore, the baffle plate 8 is in contact connection with two sides of the commutator segment 6, and the fixing of the commutator segment 6 is further enhanced.

Furthermore, the fixing pin 9 penetrates into the inside of the housing 1, and the fixing pin 9 is in interference fit with the housing 1, so that the fixing is more sufficient, and the fixing pin 9 is prevented from falling off.

It should be noted that the reinforcing frame 10 is shaped like a Chinese character 'ji', and the reinforcing frame 10 is in contact connection with the cylindrical surface of the limiting column 4, so that the connection between the housing 1 and the metal bush 3 is more tight.

It should be noted that, the matching holes 12 are provided at the two ends of the limiting column 4, and the fixing pin 9 is in interference fit with the matching holes 12, so that the limiting column 4 is conveniently connected with the casing 1 through the fixing pin 9.

Specifically, the two ends of the reinforcing frame 10 abut against the fixed backing plate 5, so that a gap is prevented from being formed between the commutator segment 6 and the housing 1 due to a large centrifugal force.

The utility model discloses a theory of operation and use flow: at first, the outside of dovetail groove 7 is provided with fixed backing plate 5, can protect the device, prevent that centrifugal force from greatly making the device take place wearing and tearing, then the inside of casing 1 is provided with reinforcement 10, can play the effect of supporting and stabilizing the device inside, under the condition of high-speed rotation, need cooperate button head 2 at the inside fixed connection of casing 1, can make casing 1 and metal bush 3 synchronous operation, can produce certain heat in order to avoid high-speed rotation, inside through spacing post 4 is provided with heat insulating mattress 13, play the heat-proof quality, outside fixedly connected with fixed pin 9 of spacing post 4 next to, spacing post 4 will remain synchronous throughout with casing 1 like this, relative movement can not take place, can.

Claims

1. A high-power motor commutator comprises a shell (1) and is characterized in that a trapezoidal groove (7) is arranged on the outer side of the shell (1), a fixed backing plate (5) is arranged on the outer side of the trapezoid groove (7), a commutator bar (6) is fixedly connected on the outer side of the fixed backing plate (5), a metal bushing (3) is fixedly connected inside the shell (1), a limit column (4) is fixedly connected inside the metal bushing (3), two ends of the limiting column (4) are provided with baffle plates (8), a heat insulation pad (13) is arranged inside the limiting column (4), the outer side of the limiting column (4) is fixedly connected with a fixed pin (9), a reinforcing frame (10) is arranged inside the shell (1), the interior fixedly connected with cooperation button head (2) of casing (1), the outside fixedly connected with mica sheet (11) of commutator segment (6).

2. A high power motor commutator according to claim 1, characterized in that the fitting round head (2) is fitted and connected with the metal bushing (3).

3. A high power motor commutator according to claim 1, wherein the baffle plates (8) are in contact connection with both sides of the commutator segments (6).

4. The commutator for high-power electric motors according to claim 1, characterized in that the fixing pin (9) penetrates the inside of the housing (1) inwards, and the fixing pin (9) is in interference fit with the housing (1).

5. The commutator for high-power motor according to claim 1, wherein the reinforcing frame (10) is in a shape of Chinese character 'ji', and the reinforcing frame (10) is in contact connection with the cylindrical surface of the limiting column (4).

6. The commutator of the high-power motor according to claim 1, wherein the two ends of the limit column (4) are provided with matching holes (12), and the fixing pin (9) is in interference fit with the matching holes (12).

7. The commutator for high-power motor according to claim 1, wherein both ends of the reinforcing frame (10) are abutted with the fixed backing plate (5).