阅读说明：本技术 一种助力输出机构及其安装方法和电助力自行车 (Power-assisted output mechanism, mounting method thereof and electric power-assisted bicycle ) 是由 曹景宽 徐博颖 张建博 张方浩 吴祯宇 刘亚萍 于 2021-07-20 设计创作，主要内容包括：本发明公开了一种助力输出机构,包括：电机,所述的电机包括电机主体组件、电机外壳和延伸出电机外壳外部的电机脚踏轴,所述的电机外壳上设置有渐开线齿结构,所述的电机脚踏轴的延伸端设置有螺纹结构；牙碗组件,安装在电动助力车共用基座的五通管内,用于安装和限位电机的组件；所述的牙碗组件包括左牙碗组件和右牙碗；其中,所述的右牙碗内部设置有与电机外壳渐开线齿结构相配合的右牙碗渐开线结构；所述的左牙碗组件上设置有与五通管配合的外牙纹结构。还公开了该助力输出机构的安装方法及一种电动助力车。该助力输出机构,结构简单,安装方便,可以直接将电机安装在自行车五通管上,能够满足各种类型的电动助力车的通用性设计要求。(The invention discloses a power-assisted output mechanism, which comprises: the motor comprises a motor main body assembly, a motor shell and a motor pedal shaft extending out of the motor shell, wherein an involute tooth structure is arranged on the motor shell, and a thread structure is arranged at the extending end of the motor pedal shaft; the tooth bowl assembly is arranged in a five-way pipe of a common base of the electric moped and is used for installing and limiting the assembly of the motor; the tooth bowl assembly comprises a left tooth bowl assembly and a right tooth bowl; the inside of the right tooth bowl is provided with a right tooth bowl involute structure matched with the motor shell involute tooth structure; and an outer tooth pattern structure matched with the five-way pipe is arranged on the left tooth bowl component. Also discloses an installation method of the power output mechanism and an electric moped. The power-assisted output mechanism is simple in structure and convenient to install, can directly install the motor on a five-way pipe of the bicycle, and can meet the universal design requirements of various types of electric moped.)

1. A power assist output mechanism characterized by comprising:

the motor (1), the said motor (1) includes the motor outer casing (3) and extends the motor foot rest axle (4) outside the motor outer casing (3), there are involute tooth structure (5) on the said motor outer casing (3), the extension end of the said motor foot rest axle (4) has whorl structure (6);

the tooth bowl component (7) is used for installing and limiting components of the motor (1); the tooth bowl component (7) comprises a left tooth bowl component (8) and a right tooth bowl (9); wherein the content of the first and second substances,

a right-tooth-bowl involute structure (10) matched with the involute tooth structure (5) on the motor shell is arranged in the right-tooth bowl (9); and an outer thread structure (11) is arranged on the left tooth bowl component (8).

2. A power assist output mechanism according to claim 1, wherein: right side tooth bowl (9) including integrative tooth bowl portion (12) and backstop portion (13) that sets up, the outside of tooth bowl portion (12) still be provided with five-way pipe complex tooth bowl external screw thread (14).

3. A power assist output mechanism according to claim 1, wherein: the left tooth bowl component (8) comprises a left tooth bowl body (15), and a thrust bearing (16) and a bearing (17) which are arranged inside the left tooth bowl body (15).

4. A power assist output mechanism according to claim 3, wherein: left side tooth bowl body (15) be the stair structure, thread portion (18) and installation department (19) including integrative setting, the inside bearing mount pad (20) that sets up of thread portion (18), installation department (19) inside installation cavity (21) that sets up.

5. A power assist output mechanism according to claim 1, wherein: motor housing (3) include motor housing main part (22) and motor housing output part (23), motor housing output part (23) on be provided with spacing portion (24) with motor pedal axle coaxial line, involute tooth structure (5) set up on spacing portion (24).

6. A power assist output mechanism according to claim 5, wherein: the motor shell output part (23) and the motor shell main body part (22) are arranged in an offset structure.

7. A power assist output mechanism according to claim 1, wherein: the motor pedal shaft (4) extends towards two sides of the motor shell (3) respectively, and one end of the motor pedal shaft penetrates through the right tooth bowl, the five-way pipe and the left tooth bowl assembly, is fixed through the locking part (25) and is in rotary connection with the left tooth bowl assembly; the other end is rotationally connected with the motor (1).

8. A power assist output mechanism according to any one of claims 1 to 7, wherein: the motor mainly comprises a motor main body component (2), wherein the motor main body component (2) comprises a motor circuit board support (33), an isolator (34) and a gear reducer (35), wherein the motor circuit board support (33), the isolator (34) and the gear reducer are sleeved on a motor pedal shaft (4).

9. A method of mounting a power assist output mechanism according to any one of claims 1 to 8, comprising the steps of:

s1: respectively screwing the left tooth bowl assembly and the right tooth bowl into two ends of the five-way pipe;

s2: a motor pedal shaft of the motor penetrates into the right tooth bowl, a bearing and a thrust bearing inside the left tooth bowl component from one side of the right tooth bowl, and an involute tooth structure of a motor shell on the motor shell is matched and screwed with the involute structure of the right tooth bowl;

s3: the end part of the motor pedal shaft at one side of the left tooth bowl assembly is tightly locked through first locking;

s4: the chain gear disc set is sleeved at one end, facing the right tooth bowl, of the motor pedal shaft and is locked through the second locking part, and then the assisting output mechanism can be installed.

10. An electric power-assisted bicycle, which is characterized in that: the power output mechanism of any one of claims 1 to 8 is mounted on a five-way pipe of a common base of the power output mechanism.

Technical Field

The invention relates to the technical field of motors, in particular to a power output mechanism, an installation method of the power output mechanism and an electric power-assisted bicycle.

Background

The traditional electric power-assisted bicycle is characterized in that a frame is welded to form a special hanging frame, and an electric power-assisted output mechanism (such as a motor) is hung on the hanging frame to obtain forward power, so that the point power-assisted bicycle cannot cause too large burden to the physical strength of a rider, and the effect of body building can be achieved after leisure.

The traditional electric power-assisted bicycle is of a customized type in the frame manufacturing process and the assembly process of the power-assisted output mechanism of the electric power-assisted bicycle, and the manufacturing and assembly costs are high. The universal design requirements of various types of electric moped cannot be met.

Chinese patent literature (announcement date: 29/1/2014, and announcement number: CN 203410587U) discloses a fixing device for a motor of an electric bicycle, which comprises a bottom bracket and a motor shell, wherein the motor shell is provided with a motor middle tube, one end of the bottom bracket is sleeved on the motor middle tube, and the fixing device is characterized in that a fixing frame is fixed on the motor shell, and the other end of the bottom bracket is fixed with the fixing frame. The utility model discloses a can ensure to the firm location of motor, effectively prevent rocking and the circumference activity of motor, and it is convenient to the installation of motor.

Above-mentioned technical scheme utilizes five-way pipe fixing device, and the device is fixed through addding the mount and five-way pipe on motor housing, ensures the firm location to the motor to effectively prevent rocking and the circumference activity of motor, and it is convenient to the installation of motor. It does not enable a versatile design of various types of electric power assisted bicycles.

Therefore, it is urgently needed to design a power output mechanism which can be directly mounted on a common base of the frame of an electric power-assisted bicycle so as to meet the universal design requirements of various types of electric power-assisted bicycles, and the power output mechanism is simple in structure, convenient to mount and capable of effectively reducing the manufacturing and assembling costs.

Disclosure of Invention

The invention aims to solve the problems that the existing motor cannot meet the universal design requirements of various types of electric moped, and the manufacturing and assembling costs are high, and provides a power output mechanism, an installation method thereof and an electric moped, wherein the power output mechanism is simple in structure and convenient to install, can directly install the motor on a five-way pipe of the moped, can meet the universal design requirements of various types of electric moped, and can effectively reduce the manufacturing and assembling costs.

The invention adopts the technical scheme that the invention achieves the aim that: a power assist output mechanism comprising:

the motor comprises a motor shell and a motor pedal shaft extending out of the motor shell, wherein an involute tooth structure is arranged on the motor shell, and a thread structure is arranged at the extending end of the motor pedal shaft;

the tooth bowl assembly is used for installing and limiting the assembly of the motor; the tooth bowl assembly comprises a left tooth bowl assembly and a right tooth bowl; wherein the content of the first and second substances,

the inside of the right tooth bowl is provided with a right tooth bowl involute structure matched with the involute tooth structure of the motor shell; and an outer tooth pattern structure matched with the five-way pipe is arranged on the left tooth bowl component.

The power output mechanism can be quickly connected with a five-way pipe of a common seat of any conventional electric moped through a left tooth bowl component and a right tooth bowl, a specially-made motor pedal shaft and a motor shell are arranged through the universal design of a motor, and the motor pedal shaft extends towards two sides of the motor shell and is used for realizing the connection with the five-way pipe and a chain tooth disc group, so that the power output is realized; simultaneously, be provided with involute tooth structure on motor housing, realized radial spacing to the motor through the cooperation of involute tooth structure and right tooth bowl, prevent that the motor from producing radial displacement at the during operation, and the axial of motor is spacing by realizing through left tooth bowl subassembly, like this with the structure setting, guaranteed the axial of motor and radial spacing installation simultaneously for the motor is more stable in the use. This helping hand output mechanism, simple structure, simple to operate can directly install the motor on bicycle five-way pipe, can satisfy the commonality designing requirement of various types of electric bicycle, can effectively reduce preparation, assembly cost simultaneously.

Preferably, the right tooth bowl comprises a tooth bowl part and a stopping part which are integrally arranged, and a tooth bowl external thread matched with the five-way pipe is further arranged outside the tooth bowl part. The setting of right side tooth bowl is in order to cooperate the commonality installation of motor housing in order to realize the motor, right side tooth bowl is provided with tooth bowl portion, the inside setting of tooth bowl portion be with motor housing involute tooth structure matched with right tooth bowl involute structure, and the outside then be the setting with five-way pipe complex tooth bowl external screw thread, realized that the part is connected with the tooth line of part, consequently be provided with backstop portion for the spacing needs of tip assembly of realization with the five-way pipe, make things convenient for the installation of right side tooth bowl and five-way pipe.

Preferably, the left dental bowl assembly comprises a left dental bowl body, a thrust bearing and a bearing, wherein the thrust bearing and the bearing are installed inside the left dental bowl body. The left tooth bowl component is connected with the tooth lines of the five-way pipe through a left tooth bowl body, meanwhile, the axial direction of the motor pedal shaft is limited through the thrust bearing installed inside the left tooth bowl, and the rotation of the motor pedal shaft and the left tooth bowl component is connected through the bearing.

Preferably, left side tooth bowl body be the stair structure, thread portion and installation department including integrative setting, the inside bearing mount pad that sets up of thread portion, the inside installation cavity that sets up of installation department. Left side tooth bowl body is provided with the thread portion for the threaded connection of outer thread structure realization and five-way pipe of convenient setting, simultaneously, conveniently sets up the bearing mount pad in its inside to realize the installation of footstep bearing and bearing, and set up the installation department, then for the installation of convenient footstep bearing and bearing, the convenient locking location to motor pedal axle simultaneously.

Preferably, the motor housing comprises a motor housing main body part and a motor housing output part, a limiting part is arranged on the motor housing output part and coaxial with the motor pedal shaft, and the involute tooth structure is arranged on the limiting part. Motor housing is provided with a motor housing main part for the installation to motor body subassembly is realized, and motor housing output, then be in order to realize being connected with the five-way pipe and realize the output of power, be provided with spacing portion on motor housing output, the outside of spacing portion is provided with involute tooth structure, during the installation, involute tooth structure and the inside right tooth bowl involute structure cooperation of right tooth bowl, thereby realize the profile of tooth and connect, install the motor and radially spacing.

Preferably, the motor housing output part and the motor housing main body part are arranged in an offset structure, so that the arrangement structure is more compact and convenient to install, and meanwhile, the chain gear disc group can be conveniently installed, and the appearance of the whole power-assisted output mechanism is simpler.

Preferably, the motor pedal shaft extends towards two sides of the motor shell respectively, and one end of the motor pedal shaft penetrates through the right tooth bowl, the five-way pipe and the left tooth bowl assembly, is fixed through the locking part and is rotatably connected with the left tooth bowl assembly; the other end is rotationally connected with the motor. The motor pedal shaft plays a role of a motor output shaft and a power shaft of the chain gear disc set, so that the motor pedal shaft extends towards two sides of the motor shell respectively to realize the functions of installation and power output.

Preferably, the motor mainly comprises a motor main body component, and the motor main body component comprises a motor circuit board support, an isolator and a gear reducer, wherein the motor circuit board support, the isolator and the gear reducer are sleeved on the pedal shaft of the motor. The motor main body assembly comprises a stator and a rotor which are commonly used by a common motor and other accessories, and also comprises a motor circuit board bracket, an isolator and a gear reducer.

The invention adopts the technical scheme that the second invention purpose is realized: a mounting method of a power output mechanism comprises the following steps:

s1: respectively screwing the left tooth bowl assembly and the right tooth bowl into two ends of the five-way pipe;

s2: a motor pedal shaft of the motor penetrates into the right tooth bowl, a bearing and a thrust bearing inside the left tooth bowl component from one side of the right tooth bowl, and an involute tooth structure of a motor shell on the motor shell is matched and screwed with the involute structure of the right tooth bowl;

s3: the end part of the motor pedal shaft at one side of the left tooth bowl assembly is fastened and locked through a first locking part;

s4: the chain gear disc set is sleeved at one end, facing the right tooth bowl, of the motor pedal shaft and is locked through the second locking part, and then the assisting output mechanism can be installed.

The technical scheme adopted by the invention for realizing the third invention purpose is as follows: the electric power-assisted bicycle has the power-assisted output mechanism mounted on the five-way pipe of the common base.

The invention has the beneficial effects that: this helping hand output mechanism, simple structure, simple to operate can directly install the motor on bicycle five-way pipe, can satisfy the commonality designing requirement of various types of electric bicycle, can effectively reduce preparation, assembly cost simultaneously.

Drawings

FIG. 1 is a schematic diagram of a power assist output mechanism of the present invention;

FIG. 2 is a cross-sectional view of the power assist output mechanism of the present invention;

FIG. 3 is a schematic diagram of a right-handed bowl according to the present invention;

FIG. 4 is a cross-sectional view of the left dental bowl assembly of the present invention;

FIG. 5 is a schematic view of a left dental bowl body according to the present invention;

FIG. 6 is a schematic view of an exemplary mounting arrangement for the power assist output mechanism of the present invention;

FIG. 7 is a schematic structural view of the electric bicycle of the present invention;

in the figure: 1. the motor 2, the motor main body component 3, the motor shell 4, the motor pedal shaft 5, the involute tooth structure 6, the thread structure 7, the tooth bowl component 8, the left tooth bowl component 9, the right tooth bowl 10, the right tooth bowl involute structure 11, the external thread structure 12, the tooth bowl part 13, the stopping part 14, the tooth bowl external thread 15, the left tooth bowl body 16, the thrust bearing 17, the bearing 18, the gear reducer comprises a tooth thread part, 19, a mounting part, 20, a bearing mounting seat, 21, a mounting cavity, 22, a motor shell main body part, 23, a motor shell output part, 24, a limiting part, 25, a first locking piece, 26, a five-way pipe, 27, a shared base, 28, a second thrust bearing, 29, a second bearing, 30, a chain gear disc group, 31, a second locking piece, 32, a frame, 33, a motor circuit board support, 34, an isolator, 35 and a gear reducer.

Detailed Description

The technical solution of the present invention is further described in detail by the following specific embodiments with reference to the accompanying drawings.

Example 1:

in the embodiment shown in fig. 1 and 2, a power output mechanism includes:

the motor comprises a motor 1, wherein the motor comprises a motor main body component 2, a motor shell 3 and a motor pedal shaft 4 extending out of the motor shell 3, an involute tooth structure 5 is arranged on the motor shell 3, and a thread structure 6 is arranged at the extending end of the motor pedal shaft 4;

the tooth bowl assembly 7 is arranged in a five-way pipe of a common base of the electric moped and is used for installing and limiting components of the motor 1; the tooth bowl component 7 comprises a left tooth bowl component 8 and a right tooth bowl 9; wherein the content of the first and second substances,

a right tooth bowl involute structure 10 matched with the involute tooth structure 5 on the motor shell is arranged in the right tooth bowl 9; and an outer thread structure 11 matched with the five-way pipe is arranged on the left tooth bowl component 7. In the embodiment, the two ends of the inner part of the five-way pipe, which is coaxial with the pedal shaft of the motor, are respectively provided with the internal thread structure of the five-way pipe.

As shown in fig. 3, the right dental bowl 9 includes a dental bowl portion 12 and a stopper portion 13, which are integrally formed, and a dental bowl external thread 14 matched with the five-way pipe is further provided outside the dental bowl portion 12. Right side dental bowl 9 is provided with dental bowl portion 12, what the inside of dental bowl portion 12 set up is right dental bowl involute structure 10 with motor housing involute tooth structure 5 matched with, and outside then be the setting with five-way pipe complex dental bowl external screw thread 14, the tooth line that has realized five-way pipe 26 and right dental bowl is connected and motor housing is connected with the tooth line of right dental bowl, realized radially putting the spacing of changeing motor housing, consequently be provided with backstop portion for the spacing needs of realization and five-way pipe 26's tip assembly, make things convenient for the installation of right side dental bowl and five-way pipe.

As shown in fig. 4, the left dental bowl assembly 8 includes a left dental bowl body 15, a thrust bearing 16 and a bearing 17 installed inside the left dental bowl body 15. Left side dental articulator subassembly 8 realizes being connected with the profile of tooth of five-way pipe 26 through a left dental articulator body 15, simultaneously, realizes spacing the axial of motor pedal axle 4 through installing the footstep bearing 16 inside the left dental articulator, and realizes through bearing 17 that motor pedal axle 4 is connected with the rotation of left dental articulator subassembly 7.

As shown in fig. 5, in this embodiment, the left tooth bowl body 15 has a stepped structure, and includes a thread portion 18 and a mounting portion 19, which are integrally formed, a bearing mounting seat 20 is disposed inside the thread portion 18, and a mounting cavity 21 is disposed inside the mounting portion 19. Left side tooth bowl body 15 is provided with the profile of tooth portion for the threaded connection of the outer profile of tooth structure realization of convenient setting and five-way pipe, simultaneously, conveniently sets up the bearing mount pad in its inside to realize the installation of footstep bearing and bearing, the setting of installation department then is for the installation of convenient footstep bearing and bearing, the convenient locking location to motor pedal axle simultaneously. Because the motor pedal shaft 4 plays a role of a motor output shaft and a power shaft of the chain gear disc set, the motor pedal shaft 4 is rotatably connected with the left tooth bowl assembly through a bearing, and axial limiting is realized through a thrust bearing.

The motor housing 3 comprises a motor housing main body part 22 and a motor housing output part 23, a limiting part 24 is arranged on the motor housing output part 23 and is coaxial with the motor pedal shaft 4, and the involute tooth structure 5 is arranged on the limiting part 24. Motor housing is provided with a motor housing main part for the installation to motor body subassembly is realized, and motor housing output, then be in order to realize being connected with the five-way pipe and realize the output of power, be provided with spacing portion on motor housing output, the outside of spacing portion is provided with involute tooth structure, during the installation, involute tooth structure and the inside right tooth bowl involute structure cooperation of right tooth bowl, thereby realize the profile of tooth and connect, install the motor and radially spacing. In this embodiment, a second thrust bearing 28 and a second bearing 29 are installed inside the stopper portion 24, thereby realizing the rotational connection of the motor pedal shaft 4.

The motor housing output part 23 and the motor housing main body part 22 are arranged in an offset structure, so that the arrangement structure is more compact and convenient to install, and meanwhile, the chain gear disc group can be favorably installed, so that the appearance of the whole power-assisted output mechanism is simpler.

The motor pedal shaft 4 extends towards two sides of the motor shell 3 respectively, and one end of the motor pedal shaft passes through the right tooth bowl 9, the five-way pipe 26 and the left tooth bowl assembly 8, is fixed through the first locking part 25 and is rotatably connected with the left tooth bowl assembly 8; the other end is rotationally connected with the motor 1. The motor pedal shaft 4 plays a role of a motor output shaft and a power shaft of the chain gear disc set, so that the motor pedal shafts extend towards two sides of the motor shell respectively to realize the functions of installation and power output.

In this embodiment, the motor body assembly 2 includes, in addition to the stator and the rotor that are common to the common motor and other accessories, a motor circuit board bracket 33, an isolator 34 and a gear reducer 35 that are sleeved on the motor pedal shaft 4, and the gear reducer is connected to the chain gear set 30. While the other components of the motor body assembly 2 are disposed within the motor housing body portion 22. The chain gear set 30 is connected to a flywheel of the electric power-assisted bicycle by adopting a structure common in the industry.

The power output mechanism can be quickly connected with a five-way pipe of a common seat of any conventional electric moped through a left tooth bowl component and a right tooth bowl, a specially-made motor pedal shaft and a motor shell are arranged through the universal design of a motor, and the motor pedal shaft extends towards two sides of the motor shell and is used for realizing the connection with the five-way pipe and a chain tooth disc group, so that the power output is realized; simultaneously, be provided with involute tooth structure on motor housing, realized radial spacing to the motor through the cooperation of involute tooth structure and right tooth bowl, prevent that the motor from producing radial displacement at the during operation, and the axial of motor is spacing by realizing through left tooth bowl subassembly, like this with the structure setting, guaranteed the axial of motor and radial spacing installation simultaneously for the motor is more stable in the use. This helping hand output mechanism, simple structure, simple to operate can directly install the motor on bicycle five-way pipe, can satisfy the commonality designing requirement of various types of electric bicycle, can effectively reduce preparation, assembly cost simultaneously.

As shown in fig. 6, the method for mounting the power output mechanism includes the following steps:

s1: the left tooth bowl component 8 and the right tooth bowl 9 are screwed into two ends of the five-way pipe 26 respectively;

s2: a motor pedal shaft 4 of a motor 1 penetrates into a right tooth bowl 9, a bearing 17 and a thrust bearing 16 inside a left tooth bowl component 8 from one side of the right tooth bowl 9, and a motor shell involute tooth structure 5 on a motor shell is matched and screwed with a right tooth bowl involute structure 10;

s3: the end part of the motor pedal shaft at one side of the left tooth bowl component 8 is tightly locked through a first locking piece 25;

s4: the chain gear disc group 30 is sleeved at one end of the motor pedal shaft 4 facing the right tooth bowl 9 and is locked by the second locking part 31, and then the assisting output mechanism can be installed.

As shown in fig. 7, the power output mechanism is mounted on a bottom bracket 26 of a common base 27 of an electric power-assisted bicycle.

The assist output mechanism is a simplified assist power mechanism used for an electric power assisted bicycle, and can be easily attached to the electric power assisted bicycle frame 32. The motor 1 can be directly installed on the five-way pipe of the electric power-assisted bicycle, so that simplification and generalization of the structure and rapidness and convenience in installation are realized.

The embodiments described above are only a part of the embodiments of the present invention, and not all of them. Meanwhile, based on the embodiments described in the present invention, all other embodiments obtained on the basis of the technical solutions of the present application by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.