CN212020622U

CN212020622U - Tool for installing direct current motor commutator

Info

Publication number: CN212020622U
Application number: CN202020557460.5U
Authority: CN
Inventors: 黄炎
Original assignee: Chengdu Kaiser Technology Co ltd
Current assignee: Chengdu Kaiser Technology Co ltd
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2020-11-27
Anticipated expiration: 2030-04-15

Abstract

The utility model discloses a frock of installation direct current motor commutator, including the base, one side excavation of base has the counter bore, and the inside sliding connection of counter bore has the armature, and the one end sliding connection who keeps away from the base in the outside of armature has the commutator, and a plurality of straight flute has been seted up to the one end equidistance that the commutator is close to the base, and the outside sliding connection of commutator has the pressure head, and the mounting hole has been seted up at the top of pressure head, the utility model discloses the beneficial effect who reaches is: the utility model discloses compact structure, easy operation is convenient, therefore, the clothes hanger is strong in practicability, through setting up locating pin and guide bar, the angular relation of spare part about guaranteeing, simultaneously through the conical surface of locating pin one end, block or throw off the straight flute of equalling divide on the commutator, thereby the accurate angle and the axial position relation of assurance commutator and armature, and then conveniently adjust commutator and armature shaft well, in order to guarantee that both angles are unanimous after the assembly, improve the outward appearance uniformity and the dimensional stability of product, make things convenient for subsequent welding process to normally go on simultaneously.

Description

Tool for installing direct current motor commutator

Technical Field

The utility model relates to a frock of installation commutator, in particular to frock of installation DC motor commutator belongs to frock technical field.

Background

In the prior life, an APU (auxiliary power unit) starting/generating machine of an aircraft of an airbus A330 series is a highly integrated multifunctional direct current motor, which is used for dragging turbine blades to start in the starting stage of an APU turbine (or called an APU engine), and is used as a generator in reverse after the APU turbine is started, mechanical energy input by the turbine is converted into electric energy to provide lighting and air conditioning power for an aircraft cabin, in the direct current motor, a commutator is an indispensable important element, and in the direct current motor, the direct current motor plays a role of rectification, so that the current direction in an armature winding is alternated to ensure that the direction of electromagnetic torque is always unchanged, in the direct current generator, the electromotive force generated by the direct current generator can be ensured to be in direct current electromotive force between two electric brushes, and compared with the alternating current motor, the direct current motor is more difficult to maintain due to the commutator being a loss part, but it also has good starting characteristic and speed regulation characteristic, so it still has a place in industry;

commutator and armature shaft generally adopt the mode of pressure equipment or heat jacket to assemble, and professional motor manufacturer can adjust well both through anchor clamps on the production line when batch production, carries out automated assembly, but to the maintenance enterprise of small batch operation, if the greedy is convenient, can use naked eye to adjust well back reassembling, but under extreme condition (both angular differences are great), can bring inconvenience for subsequent wiring, also can influence the outward appearance of product.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a frock of installation direct current motor commutator.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a frock of installation DC motor commutator, the on-line screen storage device comprises a base, one side excavation of base has the counter bore, the inside sliding connection in counter bore has the armature, the one end sliding connection who keeps away from the base in the outside of armature has the commutator, the commutator is close to the one end equidistance of base and has seted up a plurality of straight flute, the outside sliding connection of commutator has the pressure head, the mounting hole has been seted up at the top of pressure head, there is the locating piece at the top of pressure head through the screw connection, the top threaded connection of locating piece has the locating pin, the bottom of locating pin runs through the inside that the mounting hole extends to the pressure head, the breach is seted up in the outside of pressure head, one side sliding connection of breach inner wall has the guide bar, one side excavation of guide bar is kept away from.

As an optimized scheme of the utility model, the outside at locating pin top is seted up threadedly, a word groove has been seted up at the top of locating pin.

As a preferred scheme of the utility model, the bottom of locating pin sets up to smooth conical surface, the cone angle of the conical surface of locating pin bottom is unanimous with the contained angle of straight flute both sides, the conical surface of locating pin bottom extends to the inside of the straight flute that corresponds.

As an optimal scheme of the utility model, the top and the bottom of pressure head all set up to planar structure.

As an optimized proposal of the utility model, the inner diameter of the pressure head is 0.1mm-0.15mm larger than the outer diameter of the commutator.

As the utility model discloses a preferred scheme, the guide bar is close to the one end fixed connection of screw hole and has the spacing head, the diameter of spacing head is greater than the diameter of guide bar, the inside threaded connection of screw hole has the end cap.

As an optimized proposal of the utility model, a plurality of spacing grooves are opened to the outside equidistance of armature core, the diameter of guide bar is 0.02mm-0.06mm less than the spacing groove outside the iron core of armature.

The utility model discloses the beneficial effect who reaches is: the utility model discloses compact structure, easy operation is convenient, therefore, the clothes hanger is strong in practicability, through setting up locating pin and guide bar, the angular relation of spare part about guaranteeing, simultaneously through the conical surface of locating pin one end, block or throw off the straight flute of equalling divide on the commutator, thereby the accurate angle and the axial position relation of assurance commutator and armature, and then conveniently adjust commutator and armature shaft well, in order to guarantee that both angles are unanimous after the assembly, improve the outward appearance uniformity and the dimensional stability of product, make things convenient for subsequent welding process to normally go on simultaneously.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is an exploded view of the overall structure of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a cross-sectional view of the present invention;

FIG. 4 is a sectional view taken along A-A of FIG. 3

Fig. 5 is a schematic structural diagram of the commutator of the present invention.

In the figure: 1. a base; 2. a countersunk hole; 3. an armature; 4. a commutator; 5. a straight groove; 6. a pressure head; 7. mounting holes; 8. positioning blocks; 9. positioning pins; 10. a notch; 11. a guide bar; 12. a threaded hole; 13. a limiting head.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Examples

As shown in fig. 1-5, the utility model provides a tool for installing a commutator of a direct current motor, which comprises a base 1, wherein a counter bore 2 is drilled on one side of the base 1, an armature 3 is slidably connected inside the counter bore 2, and the counter bore 2 is convenient for better limiting the armature 3; the outer side of the armature 3 is far away from one end of the base 1 and is slidably connected with a commutator 4, one end of the commutator 4 close to the base 1 is equidistantly provided with a plurality of straight grooves 5, the outer side of the commutator 4 is slidably connected with a pressure head 6, the top of the pressure head 6 is provided with a mounting hole 7, the top of the pressure head 6 is connected with a positioning block 8 through a screw, the top of the positioning block 8 is in threaded connection with a positioning pin 9, the bottom of the positioning pin 9 penetrates through the mounting hole 7 and extends to the inside of the pressure head 6, the outer side of the pressure head 6 is provided with a notch 10, one side of the inner wall of the notch 10 is slidably connected with a guide rod 11, one side of the inner wall of the notch 10, which is far away from the guide rod 11, is provided with a threaded hole 12, the positioning block 8 and the pressure head 6 can be in an integrated structure, so that the installation, avoiding the use of tools such as a straight screwdriver and the like.

Furthermore, the outside at the top of the positioning pin 9 is provided with threads, and the top of the positioning pin 9 is provided with a straight groove, so that the positioning pin 9 can be better installed and detached.

Furthermore, the bottom of the positioning pin 9 is set to be a smooth conical surface, the included angle between the conical angle of the conical surface at the bottom of the positioning pin 9 and the two sides of the straight groove 5 is consistent, the conical surface at the bottom of the positioning pin 9 extends to the inside of the corresponding straight groove 5, the positioning pin 9 is rotated to enable the head of the positioning pin to be telescopic in the radial direction, after the end surface of the commutator 4 is tightly attached to the pressure head 6, the positioning pin 9 is screwed, the conical surface of the positioning pin is tightly attached to the inside of the straight groove 5, and at the moment, under the action of friction force, the commutator 4.

Further, the top and the bottom of the pressure head 6 are both arranged to be of a plane structure, so that the positioning block 8 can be installed and fixed better.

Furthermore, the inner diameter of the pressure head 6 is 0.1-0.15 mm larger than the outer diameter of the commutator 4, so that the commutator 4 can be limited through the pressure head 6.

Further, the one end fixed connection that guide bar 11 is close to screw hole 12 has spacing head 13, and the diameter of spacing head 13 is greater than the diameter of guide bar 11, and the internal thread of screw hole 12 is connected with the end cap, is convenient for better spacing guide bar 11 through spacing head 13, prevents that it from breaking away from equipment, simultaneously through the inside end cap of screw hole 12, is convenient for better stopping up screw hole 12.

Furthermore, a plurality of limiting grooves are formed in the outer side of the iron core of the armature 3 at equal intervals, the diameter of the guide rod 11 is smaller than that of the limiting grooves in the outer side of the iron core of the armature 3 by 0.02-0.06 mm, and the armature 3 and the commutator 4 are conveniently and better limited through the matching between the guide rod 11 and the limiting grooves.

Specifically, twenty-five uniformly distributed straight grooves 5 are drilled on the outer side of the commutator 4, so that the angular position of the installation of the guide rod 11 and the angular position of the installation of the positioning pin 9 are different by 360 degrees/25 × 5 to 72 degrees, which can ensure that when the guide rod 11 is inserted into the limiting groove on the outer side of the iron core of the armature 3, the angular positions of the armature 3 and the commutator 4 are aligned, for the commutators 4 with other groove numbers, the guide rod 11 can be installed at a proper angular position according to the principle, when the commutator 4 is used, the commutator 4 is firstly placed in the pressure head 6, then the positioning pin 9 is rotated, the head of the positioning pin 9 can be stretched in the radial direction, after the end surface of the commutator 4 and the pressure head 6 are stuck, the positioning pin 9 is screwed, the conical surface of the positioning pin is stuck with the inner part of the straight groove 5, at the moment, under the action of friction force, the commutator 4 and the pressure head 6 are integrated, after the commutator 4, then the armature 3 is placed in the counter bore 2, then the guide rod 11 outside the pressure head 6 is inserted into the limit slot of the iron core on the armature 3, at this time, the commutator 4 is aligned with the armature 3, then the commutator 4 is pressed tightly on the press machine by using proper force, when the stop surface of the pressure head 6 contacts the end surface of the iron core of the armature 3, the pressure head 6 can not move continuously, at this time, the commutator 4 is installed in place, the axial positions of the commutator 4 and the armature 3 can be ensured while the angular alignment of the commutator 4 and the armature 3 is ensured by setting the correct length of the pressure head 6, after the installation is finished, the positioning pin 9 is withdrawn in a reverse rotation manner, and the pressure head 6 can be taken down smoothly.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a frock of installation DC motor commutator, includes base (1), its characterized in that, one side of base (1) is dug there is counter bore (2), the inside sliding connection of counter bore (2) has armature (3), the one end sliding connection that base (1) was kept away from in the outside of armature (3) has commutator (4), commutator (4) are close to the one end equidistance of base (1) and have been seted up a plurality of straight flute (5), the outside sliding connection of commutator (4) has pressure head (6), mounting hole (7) have been seted up at the top of pressure head (6), there is locating piece (8) at the top of pressure head (6) through screw connection, the top threaded connection of locating piece (8) has locating pin (9), the bottom of locating pin (9) runs through the inside that mounting hole (7) extended to pressure head (6), a notch (10) is formed in the outer side of the pressure head (6), a guide rod (11) is connected to one side of the inner wall of the notch (10) in a sliding mode, and a threaded hole (12) is formed in one side, far away from the guide rod (11), of the inner wall of the notch (10).

2. The tool for mounting the direct current motor commutator, according to claim 1, characterized in that the outer side of the top of the positioning pin (9) is threaded, and the top of the positioning pin (9) is provided with a straight groove.

3. The tool for installing the direct current motor commutator, according to claim 1, characterized in that the bottom of the positioning pin (9) is provided with a smooth conical surface, the included angle between the conical angle of the bottom conical surface of the positioning pin (9) and the two sides of the straight groove (5) is consistent, and the conical surface of the bottom of the positioning pin (9) extends to the inside of the corresponding straight groove (5).

4. The tool for installing the direct current motor commutator, according to claim 1, characterized in that the top and the bottom of the pressure head (6) are both arranged in a plane structure.

5. The tool for mounting the direct current motor commutator recited in claim 1, wherein the inner diameter of the pressure head (6) is 0.1mm-0.15mm larger than the outer diameter of the commutator (4).

6. The tool for installing the direct current motor commutator, according to claim 1, characterized in that one end of the guide rod (11) close to the threaded hole (12) is fixedly connected with a limiting head (13), the diameter of the limiting head (13) is larger than that of the guide rod (11), and a plug is connected to the internal thread of the threaded hole (12).

7. The tool for mounting the direct current motor commutator according to claim 1, wherein a plurality of limiting grooves are formed in the outer side of the iron core of the armature (3) at equal intervals, and the diameter of the guide rod (11) is 0.02-0.06 mm smaller than that of the limiting grooves in the outer side of the iron core of the armature (3).