CN116155040A - High-integration motor for steering wheel system - Google Patents

High-integration motor for steering wheel system Download PDF

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Publication number
CN116155040A
CN116155040A CN202211434276.1A CN202211434276A CN116155040A CN 116155040 A CN116155040 A CN 116155040A CN 202211434276 A CN202211434276 A CN 202211434276A CN 116155040 A CN116155040 A CN 116155040A
Authority
CN
China
Prior art keywords
motor
output shaft
steering wheel
wheel system
encoder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211434276.1A
Other languages
Chinese (zh)
Inventor
王路阔
陈威振
赖恒
李敏
谷青明
翟国涛
屈继文
张云鹏
孙佳辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Jinling Institute Of Intelligent Manufacturing Co ltd
China Aerospace Science And Industry Group Co ltd
Original Assignee
Jiangsu Jinling Institute Of Intelligent Manufacturing Co ltd
China Aerospace Science And Industry Group Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Jinling Institute Of Intelligent Manufacturing Co ltd, China Aerospace Science And Industry Group Co ltd filed Critical Jiangsu Jinling Institute Of Intelligent Manufacturing Co ltd
Priority to CN202211434276.1A priority Critical patent/CN116155040A/en
Publication of CN116155040A publication Critical patent/CN116155040A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/02—Cable terminations
    • H02G15/04—Cable-end sealings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The invention discloses a high-integration motor for a steering wheel system, which comprises a motor stator, a motor rotor and an output shaft, wherein the motor stator is pressed in a motor shell, two sides in the motor shell are respectively connected with a motor front end cover and a motor tail cover, the motor rotor on the inner side of the motor stator is pressed in the output shaft, one end of the output shaft extends out of the motor front end cover and is used for being connected with a speed reducer, a brake and an encoder are arranged on the other end of the output shaft, the brake and the encoder are all installed on the motor tail cover, a cable sealing joint is arranged on the upper part of the motor tail cover, and cables of the motor are all sealed to be outgoing wires through the cable sealing joint. Compared with the servo motor with the same power in the market, the motor provided by the invention shortens the length by improving the integration level under the condition that the outer diameter does not greatly change.

Description

High-integration motor for steering wheel system
Technical Field
The invention belongs to the field of motor structures, and particularly relates to a high-integration motor for a steering wheel system.
Background
The steering wheel system is the power component of the AGV, wherein the motor is the key component affecting the driving capability of the steering wheel system. At present, a driving servo motor conventionally used in a steering wheel system, such as a high-performance alternating current permanent magnet servo motor mentioned in CN212323962U patent, is serially arranged in all parts, has long overall length, is a conventional optical axis at the output end, cannot be directly used as a primary gear train of a speed reducer, directly causes a larger turning radius of one of key parameters of the steering wheel system, causes unfriendly layout design of an AGV vehicle body, and influences the application range of the steering wheel system.
Disclosure of Invention
The invention aims to provide a high-integration motor for a steering wheel system, which shortens the length and expands the application range of the steering wheel system by improving the integration under the condition that the outer diameter does not greatly change compared with the same-power servo motor in the market.
The technical solution for realizing the purpose of the invention is as follows: the utility model provides a high integration motor for steering wheel system, includes motor stator, motor rotor and output shaft, and motor stator pressure equipment is in motor housing, and motor front end housing and motor tail housing are connected respectively to motor housing's inboard motor rotor pressure equipment output shaft, output shaft one end stretches out from motor front end housing for being connected with the speed reducer, the stopper and the encoder have all been installed in motor tail housing to the output shaft other end arrangement, and motor tail housing upper portion sets up cable seal joint, and motor stator, stopper, encoder's cable all realizes sealed the outgoing line through this cable seal joint.
Further, a brake is arranged in the motor tail cover through a threaded connecting piece, an output shaft penetrates through a spline of the brake and then is connected with a rotor of an encoder, and a stator of the encoder is arranged on the outer side of the motor tail cover through the threaded connecting piece.
Further, an encoder outer cover is arranged on the outer side of the encoder, and the encoder outer cover is fixed with the motor tail cover through a threaded connector.
Further, the motor output shaft is a cylindrical bevel gear shaft, and the gear shaft extends out of the motor front end cover to serve as a sun gear connected with the planetary reducer.
Further, the middle of the motor output shaft is of a boss-shaped structure and can be matched with the inner hole of the rotor.
Furthermore, the front end cover of the motor is of a quincuncial sheet structure, and a motor fixing and mounting interface is reserved on the petal structure.
Further, 12 groups of heat dissipation fins are arranged on the motor shell, the number of each group is 6, and an installation interface of a motor front end cover and a motor tail cover is reserved between each group of fins.
Further, the motor tail cover is of a box-shaped structure, a brake is installed inside the motor tail cover, and a cavity between the brake and the tail cover is used for installing a bearing and leaving an installation interface of an encoder.
Further, the motor rotor is in interference connection with the output shaft, and symmetrical bearings are respectively arranged at two ends of the output shaft and are respectively supported and positioned on the motor front end cover and the motor tail cover.
Further, the motor tail cover, the motor front end cover and the motor outer shell are sealed by epoxy resin glue, and the motor tail cover and the encoder outer cover are sealed by epoxy resin glue.
Compared with the prior art, the invention has the remarkable advantages that: (1) The whole integration level is high, the brake encoders are integrated at the tail end of the motor, the bearing and the encoder are arranged in the cavity between the brake and the tail cover, and the space is fully utilized; (2) The motor tail cover and the motor front end cover are sealed with the motor outer shell by epoxy resin glue, the motor tail cover and the encoder outer shell are sealed by epoxy resin glue, and the outgoing lines are sealed by cable sealing joints; (3) The output end of the motor is a gear shaft, and the motor can be directly used as a first-stage sun gear connected with a speed reducer, so that the axial length space is saved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
Fig. 3 is an exploded view of the present invention.
Detailed Description
The described embodiments are intended to be examples of what is believed to be the novel features of some, but not all embodiments, and all other embodiments that may be made by those skilled in the art without the exercise of inventive faculty are intended to be within the scope of the invention.
The technical solution of the present invention will be described with reference to fig. 1, 2 and 3. The embodiment provides an ultra-short type high-power high-integration servo motor for a steering wheel system, which comprises an output shaft 1, a bearing 2, a motor front end cover 3, a motor rotor 4, a motor stator 5, a motor outer shell 6, a motor tail cover 7, a brake 8, a bearing 9, an encoder 10, an encoder outer cover 11 and a cable sealing joint 12.
The motor stator 5 is pressed in the motor shell 6, the shell 6 is provided with radiating fins for natural air cooling and radiating of the motor, two ends of the shell 6 are connected with the motor front end cover 3 and the motor tail cover 7 through threaded connectors, the motor rotor 4 is pressed with the output shaft 1, the motor front end cover 3 and the motor tail cover 7 are in interference connection, two ends of the output shaft 1 are symmetrically arranged, the motor front end cover 3 and the motor tail cover 7 are respectively supported and positioned, the output shaft 1 at the motor front end cover 3 is output by a gear shaft and serves as input of a speed reducer, a brake 8 is arranged in the motor tail cover 7 through the threaded connectors, the output shaft 1 penetrates through a spline of the brake 8 and then is connected with a rotor of the encoder 10, the stator of the encoder 10 is arranged outside the motor tail cover 7 through the threaded connectors, and the encoder housing 11 is arranged outside the encoder 10 and is fixed with the motor tail cover 7 through the threaded connectors. The motor tail cover, the motor front end cover and the motor outer shell are sealed by epoxy resin glue, the motor tail cover 7 and the encoder 10 outer shell are sealed by epoxy resin glue, a cable sealing joint 12 is arranged on the upper portion of the motor tail cover 7, and all cables of the motor are led out in a sealing way through the cable sealing joint.
Working principle: the coil is wound in the internal winding groove of the motor stator 5 and is connected with an external cable through a cable sealing joint 12, and a magnetic field is generated on the stator 5 after an external power supply is electrified, so that the motor rotor 4 drives the output shaft 1 to rotate and outputs torque. Meanwhile, the encoder 10 is connected to the output shaft 1 and used as a position sensor to feed back the real-time position of the motor to the upper computer, so that the closed-loop control of the motor is realized. After power failure, the electromagnetic brake 8 connected with the output shaft 1 can be automatically locked for protection.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.

Claims (10)

1. The utility model provides a high integration degree motor for steering wheel system, includes motor stator, motor rotor and output shaft, its characterized in that, motor stator pressure equipment is in motor housing, motor housing's in the both sides connect respectively by motor front end housing and motor tail housing, the inboard motor rotor pressure equipment output shaft of motor stator, output shaft one end stretches out from motor front end housing for be connected with the speed reducer, the stopper and the encoder have been arranged to the output shaft other end, all install in motor tail housing, motor tail housing upper portion is provided with cable seal joint, the cable of motor is all through this cable seal joint seal outgoing line.
2. The high integration motor for a steering wheel system according to claim 1, wherein the brake is mounted inside the motor tail cover through a screw connection, the output shaft penetrates through a spline of the brake and then is connected with a rotor of the encoder, and a stator of the encoder is mounted outside the motor tail cover through a screw connection.
3. The high integration motor for a steering wheel system according to claim 2, wherein an encoder housing is installed at an outer side of the encoder, and the encoder housing is fixed to the motor tail housing by a screw connector.
4. A high integration motor for a steering wheel system according to claim 3, wherein the motor tail cover and the motor front end cover are sealed with an epoxy resin glue and the motor tail cover and the encoder housing are sealed with an epoxy resin glue.
5. The high integration motor for a steering wheel system according to claim 1, wherein the motor output shaft is a cylindrical bevel gear shaft as a sun gear connected to a planetary reducer.
6. The high integration motor for a steering wheel system according to claim 1, wherein the middle of the motor output shaft is a boss-shaped structure which is matched with an inner hole of a motor rotor.
7. The high integration motor for a steering wheel system according to claim 1, wherein the front end cover of the motor is a quincuncial sheet structure, and a motor fixing and mounting interface is arranged on the petal structure.
8. The high integration motor for a steering wheel system according to claim 1, wherein 12 groups of heat dissipation fins are provided on the motor outer case, each group being 6 in number, and a mounting interface of a motor front cover and a motor tail cover is left between the fins of each group.
9. The high integration motor for a steering wheel system according to claim 1, wherein the motor rotor is in interference connection with the output shaft, and a pair of symmetrical bearings are respectively arranged at two ends of the output shaft, and are respectively supported and positioned on the motor front end cover and the motor tail cover.
10. The high integration motor for a steering wheel system according to any one of claims 1 to 9, wherein the motor tail cover has a box-shaped structure, a brake is installed inside, and a cavity between the brake and the motor tail cover is used for installing a bearing and is provided with an installation interface of an encoder.
CN202211434276.1A 2022-11-16 2022-11-16 High-integration motor for steering wheel system Pending CN116155040A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211434276.1A CN116155040A (en) 2022-11-16 2022-11-16 High-integration motor for steering wheel system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211434276.1A CN116155040A (en) 2022-11-16 2022-11-16 High-integration motor for steering wheel system

Publications (1)

Publication Number Publication Date
CN116155040A true CN116155040A (en) 2023-05-23

Family

ID=86360785

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211434276.1A Pending CN116155040A (en) 2022-11-16 2022-11-16 High-integration motor for steering wheel system

Country Status (1)

Country Link
CN (1) CN116155040A (en)

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