阅读说明：本技术 一种背后安装的半开口整装式无刷有限转角电机 (Half-opening integrally-mounted brushless limited-angle motor mounted behind back ) 是由 智豪 潘龙飞 马太辉 王建飞 高向阳 李学蛟 董艳 于 2021-01-08 设计创作，主要内容包括：本发明涉及一种背后安装的半开口整装式无刷有限转角电机,特点为；壳体组件由背底、外环壁、中心壳体轴及多个壳体法兰构成；外环壁与中心壳体轴之间形成环腔；四个定位块均布固定于环腔内,在定位块内部同轴嵌装有定子铁芯,四组电枢绕组分布嵌装于四个定位块之间,构成电机的定子；中部壳体轴与轴承内环连接,构成电机的轴系；轴承外环连接轴套的内圆,轴套外圆固定连接磁钢,构成电机的转子；在中部壳体轴上连接锁紧螺母,实现电机轴系的轴向锁紧；多个安装螺钉一一穿装背底上的弧形长孔和轴套上对应的直通孔内,实现与框架式平台的轴系连接；多个壳体法兰用于实现与框架式平台的外环框架连接。本发明方便了安装和提高了空间利用率。(The invention relates to a half-opening integrally-mounted brushless limited angle motor arranged at the back, which is characterized in that; the shell assembly consists of a back bottom, an outer ring wall, a central shell shaft and a plurality of shell flanges; an annular cavity is formed between the outer annular wall and the central shell shaft; four positioning blocks are uniformly distributed and fixed in the annular cavity, a stator core is coaxially embedded in each positioning block, and four groups of armature windings are distributed and embedded among the four positioning blocks to form a stator of the motor; the middle shell shaft is connected with the bearing inner ring to form a shaft system of the motor; the outer ring of the bearing is connected with the inner circle of the shaft sleeve, and the outer circle of the shaft sleeve is fixedly connected with magnetic steel to form a rotor of the motor; a locking nut is connected to the middle shell shaft to realize axial locking of the motor shaft system; a plurality of mounting screws penetrate through the arc-shaped long holes in the back bottom and the corresponding through holes in the shaft sleeve one by one to realize the shaft system connection with the frame type platform; a plurality of housing flanges are used to effect the connection with the outer ring frame of the framed platform. The invention facilitates the installation and improves the space utilization rate.)

1. The utility model provides a half opening whole installation formula brushless limited angle motor behind one's back which characterized in that: the motor stator comprises a shell assembly, four positioning blocks, a stator core, four groups of armature windings, magnetic steel, a shaft sleeve, a bearing, a locking nut, a plurality of mounting screws and a lead wire;

the shell component is a revolving body structure provided with an annular cavity and consists of a back bottom, an outer annular wall, a central shell shaft and a plurality of shell flanges connected to the outer part of the outer annular wall; an annular cavity is formed between the outer annular wall and the central shell shaft; the four positioning blocks are uniformly distributed in the annular cavity along the circumferential direction in a manner of contacting with the inner annular surface of the outer annular wall and are connected with the back bottom through positioning pins, a stator core is coaxially embedded in the positioning blocks, the four groups of armature windings are distributed and embedded in the space among the four positioning blocks, and the positioning blocks, the stator core and the armature windings form a stator of the motor;

the central shell shaft is a hollow shaft and is connected with the bearing inner ring to form a shaft system of the motor;

the outer ring of the bearing is connected with the inner circle of the shaft sleeve, and the outer circle of the shaft sleeve is fixedly connected with magnetic steel to form a rotor of the motor;

a locking nut is coaxially sleeved on the central shell shaft outside the outer end face of the bearing and is in threaded connection with the central shell shaft, so that the axial locking of a motor shaft system is realized;

a plurality of arc-shaped long holes which play a role in swing limiting are uniformly distributed on the back bottom along the circumferential direction, a plurality of through holes along the axial direction are correspondingly arranged on the shaft sleeve along the circumferential direction, and a plurality of mounting screws are arranged in the corresponding arc-shaped long holes and the through holes in a penetrating manner one by one and are used for realizing the shaft system connection with the frame type platform;

a plurality of shell flanges on the shell assembly are used for realizing connection with an outer ring frame of the frame type platform;

the two lead wires are led out from the back bottom and used for being connected with a power supply to supply power to the motor.

2. The back-mounted, half-opening, self-contained, brushless, limited angle motor of claim 1, wherein: the excircle of the shaft sleeve is connected with the magnetic steel in a bonding way.

Technical Field

The invention belongs to the technical field of brushless torque motors, relates to an integrally-mounted brushless limited-angle motor, and particularly relates to a half-opening integrally-mounted brushless limited-angle motor arranged behind the motor.

Background

The micro special motor is used as an important executing element of the system and is connected with the frame type platform to realize the swing of the platform within the angle range. To increase the utilization of system space, the motor needs to be designed compactly, to be light, and to have high reliability. In general, a frame structure using a self-contained motor as an actuator requires mounting from the front. This not only limits the volume of the motor and causes low space utilization, but also brings inconvenience to the assembly of high precision systems.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a rear-mounted half-opening integrally-mounted brushless limited-angle motor so as to solve the problems of inconvenient system installation and low space utilization rate of the conventional brushless torque motor.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a half opening whole installation formula brushless limited angle motor behind one's back which characterized in that: the motor stator comprises a shell assembly, four positioning blocks, a stator core, four groups of armature windings, magnetic steel, a shaft sleeve, a bearing, a locking nut, a plurality of mounting screws and a lead wire;

the shell component is a revolving body structure provided with an annular cavity and consists of a back bottom, an outer annular wall, a central shell shaft and a plurality of shell flanges connected to the outer part of the outer annular wall; an annular cavity is formed between the outer annular wall and the central shell shaft; the four positioning blocks are uniformly distributed in the annular cavity along the circumferential direction in a manner of contacting with the inner annular surface of the outer annular wall and are connected with the back bottom through positioning pins, a stator core is coaxially embedded in the positioning blocks, the four groups of armature windings are distributed and embedded in the space among the four positioning blocks, and the positioning blocks, the stator core and the armature windings form a stator of the motor;

the central shell shaft is a hollow shaft and is connected with the bearing inner ring to form a shaft system of the motor;

the outer ring of the bearing is connected with the inner circle of the shaft sleeve, and the outer circle of the shaft sleeve is fixedly connected with magnetic steel to form a rotor of the motor;

a locking nut is coaxially sleeved on the central shell shaft outside the outer end face of the bearing and is in threaded connection with the central shell shaft, so that the axial locking of a motor shaft system is realized;

a plurality of arc-shaped long holes which play a role in swing limiting are uniformly distributed on the back bottom along the circumferential direction, a plurality of through holes along the axial direction are correspondingly arranged on the shaft sleeve along the circumferential direction, and a plurality of mounting screws are arranged in the corresponding arc-shaped long holes and the through holes in a penetrating manner one by one and are used for realizing the shaft system connection with the frame type platform;

a plurality of shell flanges on the shell assembly are used for realizing connection with an outer ring frame of the frame type platform;

the two lead wires are led out from the back bottom and used for being connected with a power supply to supply power to the motor.

Further: the excircle of the shaft sleeve is connected with the magnetic steel in a bonding way.

The invention has the advantages and positive effects that:

1. the invention adopts a 'back mounting' self-contained structure, the utilization rate of axial space is high, and the axial space of the system is saved by 2-4 mm.

2. In the invention, the bearing is completely wrapped in the inner cavity of the motor, which is beneficial to reducing the axial length of the motor.

The 'mounting screw' of the motor passes through the through hole of the 'shaft sleeve' from the back and is fixed on the shaft system of the frame type platform, and the motor can be directly mounted from the outside, so that the system is convenient to mount and dismount.

4. The invention improves the limit mode of the limited angle motor, and the mounting screw can be used for mechanical limit besides being used for fixing the motor rotor, thereby simplifying the overall structure of the motor.

5. The screw head of the 'mounting screw' of the motor can be embedded into the arc-shaped long hole of the 'shell assembly', so that the space utilization rate of the system is increased.

Drawings

FIG. 1 is a schematic view of the mounting side of a brushless limited angle torque motor of the present invention;

fig. 2 is a cross-sectional view of a brushless limited angle torque motor of the present invention (the locating pin is not shown in the drawing).

Detailed Description

The present invention will be described in further detail with reference to the following embodiments, which are illustrative only and not limiting, and the scope of the present invention is not limited thereby.

A rear-mounted half-open integrally-mounted brushless limited angle motor, please refer to fig. 1-2, the invention points are: the magnetic steel type motor mainly comprises a shell assembly 1, four positioning blocks 4, a stator core 5, four groups of armature windings (not shown in the drawing), magnetic steel 6, a shaft sleeve 7, a bearing 9, a locking nut 8, a plurality of mounting screws 3 (four in the drawing) and a lead wire 2.

The shell component is a revolving body structure provided with an annular cavity and comprises a back bottom 1.1, an outer annular wall 1.3, a central shell shaft 1.4 and a plurality of shell flanges 1.2 connected to the outer part of the outer annular wall. An annular cavity is formed between the outer annular wall and the central shell shaft. The four positioning blocks are uniformly distributed in the annular cavity along the circumferential direction in a mode of contacting with the inner annular surface of the outer annular wall and are connected with the back bottom through positioning pins, a stator core is coaxially embedded in the positioning blocks, the four groups of armature windings are distributed and embedded in spaces among the four positioning blocks, and the positioning blocks, the stator core and the armature windings form a stator of the motor.

The central shell shaft is a hollow shaft provided with a central hole 1.4.1, and the central shell shaft is connected with the bearing inner ring to form a shaft system of the motor but does not rotate.

The outer ring of the bearing is connected with the inner circle of the shaft sleeve, and the outer circle of the shaft sleeve is fixedly connected with the magnetic steel in a bonding mode and the like to form a rotor of the motor;

a locking nut is coaxially sleeved on the central shell shaft outside the outer end face of the bearing and is in threaded connection with the central shell shaft, so that the axial locking of a motor shaft system is realized;

a plurality of arc-shaped long holes 1.1.1 playing a role in swinging and limiting are uniformly distributed on the back bottom along the circumferential direction, a plurality of through holes distributed along the axial direction are correspondingly arranged on the shaft sleeve along the circumferential direction, and a plurality of mounting screws are arranged in the corresponding arc-shaped long holes and the through holes in a penetrating manner one by one and used for realizing the shaft system connection with the frame type platform;

a plurality of shell flanges on the shell assembly are used for realizing connection with an outer ring frame of the frame type platform;

the two lead wires are led out from the back bottom and used for being connected with a power supply to supply power to the motor, and the motor can rotate.

The specific working principle of the invention is as follows:

the middle shell shaft plays a shaft system supporting role and does not rotate, the outer ring of the bearing directly drives the shaft sleeve and the magnetic steel to rotate, and the locking nut locks the shaft system, so that a complete supporting framework is formed. The mounting screw directly penetrates through the through hole of the shaft sleeve and is connected with the frame type platform shaft system through thread matching.

When the motor is electrified, the rotor swings in a limited corner range by means of the limiting relation between the screw head of the mounting screw and the arc-shaped long hole, so that the aim of driving the frame of the system to rotate is fulfilled.

Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the invention and the appended claims, and therefore the scope of the invention is not limited to the disclosure of the embodiments and the accompanying drawings.