CN210431165U

CN210431165U - Improved motor roller reversing structure

Info

Publication number: CN210431165U
Application number: CN201921231084.4U
Authority: CN
Inventors: 黄显华
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-01
Filing date: 2019-08-01
Publication date: 2020-04-28
Anticipated expiration: 2029-08-01

Abstract

The utility model discloses an improved generation motor gyro wheel switching-over structure, including motor housing, belong to the motor field. A bearing sealing cover is fixedly arranged at the position of the motor shell close to the rotating shaft; a motor armature is fixedly arranged in the motor shell, and a conductive roller commutator is fixedly embedded in the inner side wall of the motor armature; the inside wall of electrically conductive gyro wheel commutator and the laminating of the lateral wall of electrically conductive gyro wheel adopt the form of electrically conductive gyro wheel to replace traditional carbon brush form. The reversing mode is changed from the original sliding friction into rolling friction, so that the abrasion of the motor can be greatly reduced, the reliability of the motor is improved, and particularly, the high-rotating-speed performance and the reliability of the motor at high rotating speed are improved. The key point of the design of the conductive roller is that the electrical contact is connected with the sliding friction of the rotating cover in a central rotating and conical surface connecting mode, the sliding friction is reduced to the minimum in the central rotating mode, and the conical surface obtains a larger contact conductive area on the basis of not increasing the contact radius.

Description

Improved motor roller reversing structure

Technical Field

The utility model belongs to the technical field of the motor, concretely relates to improved generation motor gyro wheel switching-over structure.

Background

The DC motor has high efficiency and great torque, can produce controllable torque at any rotation speed and can realize precise drive control, and its principle is that the torque is produced by the current conductor under the action of electromagnetic force in the magnetic field.

The existing electromotor realizes the reversing by the sliding friction of the carbon brush on the conductive roller commutator, the carbon brush generates larger heat when in friction motion on the conductive roller commutator, so that the conductive roller commutator and the carbon brush are abraded, and substances such as copper, carbon powder and the like generated by abrasion pollute the inside of the motor, so that the problems of short circuit, insulation reduction, lubrication part pollution and the like of the conductive roller commutator are caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an improved generation motor gyro wheel switching-over structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an improved motor roller reversing structure comprises a motor shell, wherein a bearing sealing cover is fixedly arranged at the position, close to a rotating shaft, of the motor shell; a motor armature is fixedly arranged in the motor shell, and a conductive roller commutator is fixedly embedded in the inner side wall of the motor armature; the inner side wall of the conductive roller commutator is attached to the outer side wall of the conductive roller, and the conductive roller is rotationally connected to the conductive roller frame; the conductive roller carrier is fixedly arranged in the motor shell; the conductive roller mainly comprises a base, a shaft, a pin, a wheel arm, a pressure adjusting device and a conductive roller tire; the base is rotatably connected with a wheel arm through a shaft, and the wheel arm is fixedly provided with a pressure adjusting device through a pin; a conductive rolling tire is arranged on one side of the wheel arm and is attached to the outer side wall of the conductor spoke; one side of the conductor spoke is in threaded connection with a rotary cover; the inner side of the rotating cover is connected with an electric contact in a sliding friction mode; a bearing is clamped in the cavity on the inner side of the conductor spoke and sleeved on the connecting shaft; one end of the connecting shaft is connected with a lead.

Preferably, one side of the electrical contact, which is far away from the rotating cover, is connected with one end of a compression spring, and the compression spring is fixedly installed on the inner side of the connecting shaft.

Preferably, one side of the conductor spoke is detachably connected with an end cover through a bolt.

Preferably, the connecting shaft is in threaded connection with two line pressing bolts in contact with the lead.

Preferably, the electrical contact and the rotating cover rotate around a central line, and the contact and the rotating cover are connected in a conical surface mode.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the conductive roller is adopted to replace the traditional carbon brush form, the reversing mode is changed from the original sliding friction into the rolling friction, so that the abrasion of the motor can be greatly reduced, the reliability of the motor is improved, particularly the high-rotating-speed performance and the reliability of the motor at a high rotating speed are improved, the key point of the design of the conductive roller is the sliding friction connection of the electric contact and the rotating cover, the central rotation and conical surface connection form is adopted, the sliding friction amount is reduced to the minimum by the central rotation form, and the conical surface obtains a larger contact conductive area on the basis of not increasing the contact radius.

(2) The technical form can reduce friction energy consumption, reduce abrasion, improve the running state of the motor, prolong the overhaul period and the running life of the direct current motor, and further expand the application field of the direct current motor.

Drawings

FIG. 1 is a structural diagram of a conductive roller inner wall type compression joint reversing four-level DC motor of the present invention;

FIG. 2 is a structural diagram of the conductive roller outer wall type compression joint reversing four-stage DC motor of the present invention;

FIG. 3 is a structural diagram of the conductive roller inner wall compression joint type double-track reversing eight-stage DC motor of the present invention;

FIG. 4 is a structural diagram of the conductive roller device of the present invention;

FIG. 5 is a structural view of the conductive roller of the present invention;

FIG. 6 is a view of the structure of the base of the present invention;

fig. 7 is a structural diagram of the pressure adjusting device, the wheel arm, the shaft and the pin of the present invention;

in the figure: 1. a motor housing; 2. a bearing seal cover; 3. a motor armature; 4. a conductive roller commutator; 5. A conductive roller; 6. a conductive roller frame; 501. a base; 502. a wheel arm; 503. a pressure regulating device; 504. a conductive roller tire; 505. a conductor spoke; 506. a rotating cover; 507. an electrical contact; 508. a bearing; 509. an end cap; 510. a compression spring; 511. a wire; 512. a wire pressing bolt; 513. a shaft; 514. And (4) a pin.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: an improved motor roller reversing structure comprises a motor shell 1, a bearing sealing cover 2 is fixedly arranged at a position, close to a rotating shaft, of the motor shell 1, a motor armature 3 is fixedly arranged inside the motor shell 1, a conductive roller reverser 4 is fixedly embedded in the inner side wall of the motor armature 3, the inner side wall of the conductive roller reverser 4 is attached to the outer side wall of a conductive roller 5, the conductive roller 5 is rotatably connected to a conductive roller frame 6, the conductive roller frame 6 is fixedly arranged inside the motor shell 1, the conductive roller 5 consists of a base 501, a shaft 513, a pin 514, a wheel arm 502, a pressure adjusting device 503 and a conductive roller tire 504, the base 501 is rotatably connected with a wheel arm 502 through the shaft 513, the wheel arm 502 is fixedly provided with the pressure adjusting device 503 through the pin 514, one side of the wheel arm 502 is provided with the conductive roller tire 504, and the conductive roller tire 504 is attached to the outer side wall of, one side of the conductor spoke 505 is in threaded connection with a rotary cover 506, the inner side of the rotary cover 506 is in sliding friction connection with an electric contact 507, a bearing 508 is connected in a clamping mode in a cavity in the inner side of the conductor spoke 505, the bearing 508 is sleeved on the connecting shaft, and one end of the connecting shaft is connected with a lead 511.

In this embodiment, the form of the conductive roller 5 is adopted in the dc motor to replace the form of the conventional carbon brush, and the sliding friction is changed into the rolling friction, and meanwhile, the internal structural form of the conductive roller 5 and various matching forms of the conductive roller 5 and the conductive roller commutator 4 are innovatively designed, as shown in fig. 1, the technical route of implementing the conductive roller 5 mode to replace the carbon brush in the dc motor is as follows: the power is transmitted into the conductor spoke 505 by the friction contact of the wire 511 through the electric contact 507 and the rotating cover 506, and then the rotation on the conductive roller commutator 4 through the conductive roller tyre 504, the commutation of the motor winding is realized, the commutation mode is changed from the original sliding friction into the rolling friction, the abrasion of the motor can be greatly reduced, the reliability of the motor is improved, in particular, the high rotating speed performance and the reliability under the high rotating speed are improved, the key point of the design core of the conductive roller 5 is the sliding friction connection of the electric contact 507 and the rotating cover 506, the connection mode of the center rotation and the conical surface is adopted, the sliding friction is reduced to the minimum by the center rotation mode, the conical surface obtains larger contact conductive area on the basis of not increasing the contact radius, the conductive roller 5 can be ensured to rotate in the conductive roller commutator 4 by the arrangement of the wheel arm 502, as shown in figures 1, 2 and 3, a plurality of design structure forms of the conductive roller 5 and the conductive roller commutator 4 are provided, the conductive roller 5 has a compact structure in the form of an inner ring (shown in figure 1), the arrangement of an outer ring (shown in figure 2) is flexible and convenient to adjust, and the arrangement of double tracks or multiple tracks (shown in figure 3) is suitable for a multi-pole direct current motor.

Specifically, one side of the electrical contact 507 away from the rotating cover 506 is connected with one end of a pressing spring 510, the pressing spring 510 is fixedly installed in the inner side of the connecting shaft, and the electrical contact 507 is always kept in contact with the rotating cover 506 by the pressing spring 510.

Specifically, a side of the conductor spoke 505 is detachably connected to the end cap 509 by bolts, so that the end cap 509 is convenient to mount.

Specifically, the connecting shaft is in threaded connection with two line pressing bolts 512 which are in contact with the conducting wire 511, so that the connection stability of the conducting wire 511 is ensured, and the conducting wire 511 is prevented from being separated.

Specifically, the electrical contact 507 and the rotating cover 506 are rotated around a center line, and the contact and the rotating cover 506 are connected through a conical surface, the sliding friction is minimized through the center rotation, and the conical surface is a larger contact conductive area on the basis of not increasing the contact radius.

The utility model discloses a theory of operation: the conductive roller 5 is adopted to replace the traditional carbon brush form, the reversing mode is changed from the original sliding friction into rolling friction, the abrasion of the motor can be greatly reduced, the reliability of the motor is improved, particularly the high rotating speed performance and the reliability of the motor under the high rotating speed are improved, the key point of the design core of the conductive roller 5 is that the sliding friction connection of the electric contact 507 and the rotating cover 506 adopts a central rotation and conical surface connection mode, the sliding friction quantity is reduced to the minimum by the central rotation mode, the conical surface obtains larger contact conductive area on the basis of not increasing the contact radius, the internal structure mode of the conductive roller 5 and various matching modes of the conductive roller 5 and the conductive roller commutator 4 are innovatively designed, the friction energy consumption of the motor can be reduced, the abrasion is reduced, the running state of the motor is improved, the overhaul period and the running life of the direct current motor are prolonged, thereby expanding the application field of the direct current motor.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an improved generation motor gyro wheel switching-over structure, includes motor housing (1), its characterized in that: a bearing sealing cover (2) is fixedly arranged at the position, close to the rotating shaft, of the motor shell (1); a motor armature (3) is fixedly arranged in the motor shell (1), and a conductive roller commutator (4) is fixedly embedded in the inner side wall of the motor armature (3); the inner side wall of the conductive roller commutator (4) is attached to the outer side wall of the conductive roller (5); the conductive roller (5) is rotationally connected to the conductive roller frame (6); the conductive roller carrier (6) is fixedly arranged in the motor shell (1); the conductive roller (5) mainly comprises a base (501), a shaft (513), a pin (514), a wheel arm (502), a pressure adjusting device (503) and a conductive roller tire (504), wherein the base (501) is rotatably connected with the wheel arm (502) through the shaft (513), and the wheel arm (502) is fixedly provided with the pressure adjusting device (503) through the pin (514); a conductive rolling tire (504) is arranged on one side of the wheel arm (502); the conductive rolling tire (504) is attached to the outer side wall of the conductor spoke (505); one side of the conductor spoke (505) is in threaded connection with a rotary cover (506); an electric contact (507) is connected to the inner side of the rotating cover (506) in a sliding friction mode; a bearing (508) is clamped in a cavity on the inner side of the conductor spoke (505), and the bearing (508) is sleeved on the connecting shaft; one end of the connecting shaft is connected with a lead (511).

2. The improved motor roller commutation structure of claim 1, wherein: one side of the electric contact (507) far away from the rotating cover (506) is connected with one end of a compression spring (510), and the compression spring (510) is fixedly arranged in the inner side of the connecting shaft.

3. The improved motor roller commutation structure of claim 1, wherein: one side surface of the conductor spoke (505) is detachably connected with an end cover (509) through a bolt.

4. The improved motor roller commutation structure of claim 1, wherein: and two line pressing bolts (512) contacted with the lead (511) are connected to the connecting shaft in a threaded manner.

5. The improved motor roller commutation structure of claim 1, wherein: the electrical contact (507) and the rotating cover (506) rotate around a central line, and the contact and the rotating cover (506) are connected in a conical surface mode.