CN219875229U

CN219875229U - High-power short-time working motorcycle starting motor

Info

Publication number: CN219875229U
Application number: CN202321092496.0U
Authority: CN
Inventors: 陈宗全; 郑明波; 梁迅
Original assignee: Chongqing Quanzhi Electromechanical Manufacturing Co ltd
Current assignee: Chongqing Quanzhi Electromechanical Manufacturing Co ltd
Priority date: 2023-05-09
Filing date: 2023-05-09
Publication date: 2023-10-20
Anticipated expiration: 2033-05-09

Abstract

The utility model relates to a high-power short-time working motorcycle starting motor, which belongs to the technical field of motors, and comprises a shell and a front cover, wherein a rotor and a stator are arranged in a cavity formed by the shell and the front cover, the rotor comprises an output shaft, a commutator and rotor sheets, a brush holder which is in electric shock connection with the commutator in a propping way is arranged on the front cover, and a carbon brush is arranged on the brush holder. The utility model has the advantages of high power, high rotating speed, high torque, more starting times, long service life and low noise.

Description

High-power short-time working motorcycle starting motor

Technical Field

The utility model relates to a high-power short-time working motorcycle starting motor, and belongs to the technical field of motors.

Background

At present, the starting motor is called a motor, and can convert electric energy of a storage battery into mechanical energy to drive an engine flywheel to rotate so as to realize the starting of the engine. The starting motor is divided into a direct current starting motor, a gasoline starting motor, a compressed air starting motor and the like according to the working principle. The internal combustion engine is mostly a direct current starting motor, and is characterized by compact structure, simple operation and convenient maintenance. The gasoline starter is a small-sized gasoline engine with a clutch and a speed change mechanism, has high power and less influence by air temperature, can start a large-sized internal combustion engine, and is suitable for high and cold areas.

The related chinese patent with publication number CN206564524U discloses a motor, which comprises a stator, a rotor and an end cover, wherein the stator comprises a stator housing, a magnetic member attached to the inner wall of the stator housing and a stator bearing, the stator bearing is fixed on the stator housing, the end cover comprises an end cover housing, an end cover bearing and at least one electric brush, the end cover bearing is fixed on the end cover housing, each electric brush comprises a friction member, the rotor comprises a rotor rotating shaft, a coil structure and a commutator, the coil structure and the commutator are fixed on the rotor rotating shaft, and two ends of the rotor rotating shaft are respectively accommodated in the stator bearing and the end cover bearing.

The inventor considers that when the motor is used for starting the motorcycle, the starting moment requirement on the motorcycle engine is larger and larger because the cylinder diameter of the motorcycle engine is larger and larger (the cylinder is expanded) at the present stage, and the motor is used for starting the motorcycle engine, so that the use requirement cannot be completely met.

Disclosure of Invention

The utility model provides a high-power short-time working motorcycle starting motor aiming at the defects in the prior art.

The technical scheme for solving the technical problems is as follows: the utility model provides a high-power short-time work system motorcycle starter motor, includes casing and protecgulum, be equipped with rotor and stator in the cavity that casing and protecgulum are constituteed, the rotor includes output shaft, commutator and rotor piece, be equipped with the brush yoke of being connected with the electric shock that offsets of commutator on the protecgulum, the brush yoke is equipped with the carbon brush, the protecgulum eccentric arrangement, the eccentric distance of protecgulum represents as R, the external diameter of rotor piece represents as L, wherein R and L satisfy: [ (L/9) -2.50] < R < [ (L/8) -2.65].

Based on the technical scheme, the utility model can also be improved as follows:

further, the eccentricity R of the front cover is 2.10-2.40mm.

Further, the preferred value of the front cover eccentricity R is 2.25mm.

Further, the outer diameter L of the rotor sheet is in the range of 41.0-42.0mm.

Further, the diameter M of the commutator is 24-24.8mm.

Further, rotor grooves are formed in the rotor plates, the number of the rotor grooves is 12, rectifying grooves are formed in the reverser, and the number of the rectifying grooves is 12.

Further, the number of the brush holders and the number of the carbon brushes are four, wherein two positive carbon brushes and two negative carbon brushes are arranged.

Further, the rotor further comprises a winding, and an insulating rotor sleeve is arranged between the rotor sheet and the winding.

Further, the insulating rotor sleeve is made of PA material.

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

1. the utility model increases the torque by increasing the diameter of the rotor sheet, increases the number of rotor grooves on the rotor sheet and the number of rectifying grooves on the commutator, and increases the number of brush holders and carbon brushes to increase the number of times of work done by one revolution of the commutator, thereby improving the power and the rotating speed of the motor, and further enabling the motor to meet the starting requirement of the motorcycle engine;

2. according to the utility model, the eccentric design is carried out on the front cover, the optimized value of the eccentricity R of the front cover is set to be 2.25mm, the stress condition of the motor can be improved, the speed ratio of the motor is adjusted, and the motor shaft is ensured to be effectively meshed with the gear, so that the running stability of the motor can be ensured, the phenomena of large motor noise and dead transmission when the eccentricity is larger or smaller can be reduced, the using noise of the motor is reduced, the working smoothness of the motor is ensured, in addition, the deflection coefficient of the gear of the starting motor can be adjusted through the eccentric arrangement of the front cover, the transmission effect of the gear inside the starting motor is improved, and the service life of the starting motor is prolonged.

Drawings

FIG. 1 is a schematic diagram of a high-power short-time operation motorcycle starting motor in an embodiment of the utility model;

fig. 2 is a schematic structural view of a protruding front cover according to an embodiment of the present utility model.

In the figure, 1, an output shaft; 2. a front cover bearing; 3. an inner cover; 4. a commutator; 5. a brush holder; 6. a rotor sheet; 7. a magnetic shoe; 8. a stator bearing; 9. a housing; 10. an insulating rotor sleeve; 11. and a front cover.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

As shown in fig. 1 and 2, a high-power starting motor for a motorcycle with short-time working comprises a casing 9 and a front cover 11, a cavity is reserved between the casing 9 and the front cover 11, a rotor and a stator are arranged in the cavity formed by the casing 9 and the front cover 11, the rotor is installed in the stator, one end of the stator is matched with the front cover 11, a stator bearing 8 is arranged on the stator, a front cover 11 bearing 2 is arranged on the front cover 11, coaxiality of two ends of the rotor is ensured by the front cover 11 bearing 2 and the stator bearing 8, the stator consists of a bearing and a magnetic shoe 7, the rotor comprises an output shaft 1, a shaft seal, a commutator 4, a rotor sheet 6, an insulating rotor sleeve 10 and windings, a brush holder 5 in electric shock connection with the commutator 4 is arranged on the front cover 11, and compared with a carbon brush of a motor with the same specification, the cross section area of the carbon brush is improved by 3 square millimeters, so that the design life of the carbon brush can be improved, and the problem of carbon brush abrasion under high-power high-speed is reduced.

As shown in fig. 1, the outer diameter L of the rotor sheet 6 is in the range of 41.0-42.0mm, the preferred value of the outer diameter L of the rotor sheet 6 is 41.2mm, the diameter M of the commutator 4 is in the range of 24-24.8mm, the preferred value of the diameter M of the commutator 4 is 24.5mm, by the above arrangement, the torque of the motor can be increased, the output power of the motor can be increased, the performance of the motor can be improved, the starting requirement of the motorcycle engine can be satisfied,

as shown in fig. 1, the rotor sheet 6 is provided with rotor grooves, the number of the rotor grooves is 12, the commutator 4 is provided with rectifying grooves, the number of the rectifying grooves is 12, the number of the brush frame 5 and the carbon brushes is four, two positive carbon brushes and two negative carbon brushes can increase the number of times of doing work in one rotation through the arrangement, so that the power and the rotating speed of the motor can be further improved, and the starting requirement of the motorcycle engine can be further met.

As shown in fig. 1, the insulating rotor sleeve 10 is made of PA material, and is made by high-temperature pressing, so that the rotor assembly performance is improved, the insulating rotor sleeve 10 is mounted at two ends of the rotor sheet 6, the insulating rotor sleeve 10 can avoid direct contact between a winding coil and the rotor sheet 6, and leakage of the coil is prevented, thereby improving the safety of the motor during operation and reducing potential safety hazards.

As shown in fig. 1 and 2, the front cover 11 is eccentrically disposed, the eccentricity of the front cover 11 is denoted as R, and the outer diameter of the rotor sheet is L, where R and L satisfy: the noise reduction effect of the starting motor can be further ensured by limiting the eccentricity R of the front cover and the outer diameter L of the rotor sheet, and the performances of the starting motor, such as power, rotating speed, torque and the like, can be further optimized; the range of the eccentricity R of the front cover 11 is 2.10-2.40mm, the preferred value of the eccentricity R of the front cover 11 is 2.25mm, the output shaft 1 of the motor is matched with the front cover 11, so that the output shaft 1 of the motor is also eccentrically arranged, the problem of high noise in the operation process of the motor can be controlled by adjusting the center distance, the problem of blocking of the output shaft 1 in the transmission process can be reduced, the problem of high noise exists when the center distance is too large or too small, the transmission blocking can be caused when the center distance is too small, normal operation cannot be performed, the displacement coefficient of a transmission gear inside the motor can be controlled through the eccentric arrangement of the output shaft 1 and the front cover 11, the contact performance of the tooth surface of the transmission gear is improved, and the efficiency, the service life and the stability of the motor can be improved.

Example 1

The starting motor is adopted in the embodiment, and the main parameters of the starting motor are that the outer diameter L of a rotor sheet is 41.2mm, the diameter M of a commutator is 24.5mm, the number of rotor grooves is 12, the number of rectifying grooves is 12, and the eccentricity R of a front cover is 2.25mm.

Example 2

The present embodiment differs from embodiment 1 in that the eccentricity R of the front cover is 2.10.

Example 3

This embodiment differs from embodiment 1 in that the eccentricity R of the front cover is 2.40mm.

Comparative example 1

The comparative example is different from example 1 in that the outer diameter L of the rotor sheet is 35mm, the diameter M of the commutator is 22.5mm, the number of rotor grooves is 10, the number of rectifying grooves is 10, and the eccentricity R of the front cover is 3.00mm.

Comparative example 2

The outer diameter L of the rotor sheet is 35mm, the diameter M of the commutator is 22.5mm, the number of rotor grooves is 10, the number of rectifying grooves is 10, and the eccentricity R of the front cover is 2.00mm.

Performance test tests were performed on the starter motors in examples 1, 2, and 3 and comparative examples 1 and 2, and table 1 was obtained:

table 1 list of starter motor performances in examples 1, 2, 3 and comparative example 1, 2

Analysis of experimental results:

1. it can be seen from example 1, comparative example 1 and table 1 that by limiting the sizes of the rotor sheet and the commutator, the number of rotor grooves and rectifying grooves can be increased to effectively improve the rotation speed, torque and power of the starting motor, thereby meeting the starting requirement of the motorcycle engine, reducing the noise of the motor and prolonging the service life of the motor by setting the eccentricity R of the front cover; in addition, when the eccentricity R of the front cover is larger, the problems of larger noise and short service life exist;

2. from example 1, comparative example 2 and table 1, it can be seen that when the eccentricity R of the front cover is smaller, the starting motor also has the problems of larger noise and shorter service life, and when the eccentricity R of the front cover is smaller, the influence on the service life of the starting motor is more obvious;

3. it can be seen from examples 1, 2 and 3 and comparative examples 1, 2 and table 1 that when the eccentricity R of the front cover is within a certain range (2.10-2.40 mm), there is an effect of increasing the life of the starting motor while reducing the problem of loud motor noise, and that when the eccentricity R of the front cover is 2.25mm, the life-increasing and noise-reducing effects are optimal, so that the eccentricity R of the front cover is set to 2.25mm as an optimal preferred value.

In summary, the starting motor related to the utility model reasonably sets the outer diameter L of the rotor sheet and the diameter M of the commutator, sets the outer diameter L of the rotor sheet and the eccentricity R of the front cover, and reasonably sets the number of rotor grooves and the number of rectifying grooves, so that the power, the rotational speed torque and the starting times of the starting motor can be improved, the starting motor can meet the starting requirement of the motorcycle engine, the service life of the starting motor is prolonged, and the noise of the starting motor is reduced.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. The utility model provides a high-power short-time work system motorcycle starter motor, includes casing (9) and protecgulum (11), be equipped with rotor and stator in the cavity that casing (9) and protecgulum (11) constitute, its characterized in that: the rotor comprises an output shaft (1), a commutator (4) and rotor sheets (6), a brush holder (5) which is in electric shock connection with the commutator (4) in a propping mode is arranged on a front cover (11), a carbon brush is arranged on the brush holder (5), the front cover (11) is eccentrically arranged, the eccentricity of the front cover (11) is represented as R, the outer diameter of each rotor sheet (6) is represented as L, and R and L satisfy the following conditions: [ (L/9) -2.50] < R < [ (L/8) -2.65].

2. The high-power short-time operation motorcycle starting motor of claim 1, wherein: the eccentricity R of the front cover (11) is 2.10-2.40mm.

3. A high power short time operation motorcycle start motor according to claim 2, characterized in that: the value of the eccentricity R of the front cover (11) is 2.25mm.

4. The high-power short-time operation motorcycle starting motor of claim 1, wherein: the outer diameter L of the rotor sheet (6) ranges from 41.0 mm to 42.0mm.

5. The high-power short-time operation motorcycle starting motor of claim 1, wherein: the diameter M of the commutator (4) is 24-24.8mm.

6. The high-power short-time operation motorcycle starting motor of claim 1, wherein: rotor piece (6) has seted up the rotor groove, the quantity of rotor groove is 12, the commutator (4) has seted up the rectifying groove, the quantity of rectifying groove is 12.

7. The high-power short-time operation motorcycle starting motor of claim 1, wherein: the number of the brush holders (5) and the number of the carbon brushes are four, wherein two positive carbon brushes and two negative carbon brushes are arranged.

8. The high-power short-time operation motorcycle starting motor of claim 1, wherein: the rotor further comprises a winding, and an insulating rotor sleeve (10) is arranged between the rotor sheet (6) and the winding.

9. The high-power short-time operation motorcycle starting motor of claim 8, wherein: the insulating rotor sleeve (10) is made of PA material.