CN113644798A - Multilayer nested parallel coaxial rotary structure - Google Patents

Multilayer nested parallel coaxial rotary structure Download PDF

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Publication number
CN113644798A
CN113644798A CN202110842168.7A CN202110842168A CN113644798A CN 113644798 A CN113644798 A CN 113644798A CN 202110842168 A CN202110842168 A CN 202110842168A CN 113644798 A CN113644798 A CN 113644798A
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China
Prior art keywords
main shaft
shell
coaxial
rotary
fixedly connected
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CN202110842168.7A
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Chinese (zh)
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CN113644798B (en
Inventor
陈光辉
朱晶晶
郝小健
陈海红
郭建都
朱东
田继文
周婧
赵乾
刘义
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China North Vehicle Research Institute
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China North Vehicle Research Institute
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Publication of CN113644798A publication Critical patent/CN113644798A/en
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    • 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
    • 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
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • 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
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manipulator (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The invention provides a multilayer nested parallel type coaxial rotary structure, which is characterized in that a plurality of rotary bodies for realizing driving, electrical connection and position calculation are nested together to form a parallel structure, so that the coaxial motion of the rotary bodies can be ensured, and the structural size of a coaxial rotary body can be minimized. The method comprises the following steps: the device comprises a shell, a main shaft and more than two coaxial rotating parts; the main shaft is supported inside the shell through a bearing; more than two annular cavities coaxial with the main shaft are arranged between the shell and the main shaft along the radial direction, and the annular cavities correspond to the coaxial rotary parts one by one and are respectively used for installing the coaxial rotary parts; the rotating part of the coaxial rotating part is fixedly connected with the main shaft and rotates along with the main shaft, and the fixed part is fixedly connected with the shell.

Description

Multilayer nested parallel coaxial rotary structure
Technical Field
The invention relates to a rotary structure, in particular to a coaxial rotary structure, and belongs to the field of multi-component coaxial rotary high-precision rotary tables.
Background
Typically, when multiple parts of coaxial rotation are required, this is usually achieved by coaxial series connection of the individual rotors. However, when the structural size of each part needing coaxial rotation is large, the adoption of the traditional structural form will inevitably cause the designed turntable body to have overlarge axial size, thereby limiting the use of the turntable body.
Based on this, it is necessary to design a turntable body structure capable of realizing multi-component coaxial rotation while ensuring the axial structure size to be minimized.
Disclosure of Invention
In view of this, the invention provides a multilayer nested parallel type coaxial rotary structure, which can ensure the coaxial motion of multiple rotary bodies and can minimize the structural size of the coaxial rotary bodies.
The nested parallel coaxial rotary structure comprises: the device comprises a shell, a main shaft and more than two coaxial rotating parts;
the main shaft is supported inside the shell through a bearing;
more than two annular cavities coaxial with the main shaft are arranged between the shell and the main shaft along the radial direction, and the annular cavities correspond to the coaxial rotary parts one by one and are respectively used for installing the coaxial rotary parts;
the rotating part of the coaxial rotating part is fixedly connected with the main shaft and rotates along with the main shaft, and the fixed part is fixedly connected with the shell.
As a preferred mode of the present invention, the present invention comprises three coaxial rotary members, which are: a drive motor, a rotary connector and a resolver;
the main shaft is of a cylindrical structure with a central through hole, annular grooves coaxial with the central through hole are respectively processed in the cylinder body and on the outer circumferential surface of the main shaft, and a central boss of the shell extends into the central hole of the main shaft; three annular cavities distributed along the radial direction are formed between the shell and the main shaft and respectively are a cavity A between the inner circumferential surface of the shell and the outer circumferential surface of the main shaft, a cavity B formed by an annular groove in the cylinder body of the main shaft and a cavity C between the inner circumferential surface of the main shaft and the outer circumferential surface of a central boss of the shell;
the driving motor is coaxially arranged in the cavity A, the rotary connector is coaxially arranged in the cavity B, and the resolver is coaxially arranged in the cavity C; the driving motor rotor, the rotary connector rotor and the resolver rotor are fixedly connected with the main shaft respectively; the driving motor stator, the rotary connector stator and the resolver stator are fixedly connected with the shell respectively.
As a preferable mode of the present invention, the housing includes a lower housing and an upper housing; the lower end of the main shaft is supported on a central boss of the lower shell through a lower bearing; the upper end of the upper shell is supported on the upper shell through an upper bearing, and the upper shell is in coaxial butt joint with the lower shell
As a preferable mode of the present invention, the driving motor stator is fixedly connected to the lower housing; the rotary connector stator is fixedly connected with the upper shell; and the resolver stator is fixedly connected with the central boss of the lower shell.
As a preferable mode of the invention, the spindle further comprises an adapter cylinder, and the adapter cylinder is coaxially sleeved inside the spindle.
Has the advantages that:
the coaxial rotary structure adopts a multilayer nested parallel type, multiple rotary bodies for realizing driving, electrical connection and position calculation are nested together to form a parallel structure, the coaxial motion of the multiple rotary bodies can be ensured, and the structural size of the coaxial rotary bodies can be minimized.
Drawings
FIG. 1 is a schematic view of the spindle system of the coaxial rotary structure of the present invention;
FIG. 2 is a schematic view of the coaxial rotary structure after assembly of the drive motor and rotary connector;
FIG. 3 is a schematic view of a coaxial rotary structure after assembly of the resolver;
fig. 4 is a schematic view of a coaxial rotary structure after the adapter cylinder is installed.
Wherein: 1-lower shell, 2-upper shell, 3-upper bearing, 4-lower bearing, 5-rotary connector rotor, 6-rotary connector stator, 7-driving motor rotor, 8-driving motor stator, 9-resolver rotor, 10-resolver stator, 11-adapter cylinder and 12-main shaft.
Detailed Description
The present invention is described in detail below with reference to the attached drawings and preferred embodiments so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making the scope of the present invention more clearly and clearly defined.
The present embodiment provides a multi-level nested parallel coaxial gyroscope structure that on the one hand functionally enables multi-component coaxial gyroscope for drive, electrical connections and position calculation and on the other hand enables a minimization of the structural size of the multi-component coaxial gyroscope.
The multilayer nested parallel coaxial rotary structure comprises: the device comprises a lower shell 1, an upper shell 2, an upper bearing 3, a lower bearing 4, a rotary connector, a driving motor, a resolver, an adapter 11 and a main shaft 12; the components requiring coaxial rotation are respectively a rotary connector, a driving motor and a resolver; the driving motor is used for driving, the rotary connector is used for realizing electrical connection, and the resolver is used for realizing position calculation. Rotary connector, driving motor and resolver constitute by rotor and stator, and rotary connector includes promptly: a rotary connector rotor 5, a rotary connector stator 6; the driving motor comprises a driving motor rotor 7 and a driving motor stator 8; the resolver includes a resolver rotor 9, a resolver stator 10, and a coaxial rotary structure for realizing coaxial rotation of the rotary connector rotor 5, the drive motor rotor 7, and the resolver rotor 9.
As shown in fig. 1, the lower housing 1, the upper housing 2, the upper bearing 3, the lower bearing 4 and the main shaft 12 together form a main shaft system of the coaxial rotary structure; the main shaft 12 is a cylindrical structure with a central through hole, and annular grooves coaxial with the central through hole are processed in the cylinder body and on the outer circumferential surface of the main shaft; the lower shell 1 is of an annular structure with a central boss, the central boss extends into a central hole of the main shaft 12, and the lower end of the main shaft 12 is supported on the central boss of the lower shell 1 through the lower bearing 4; the upper end of the main shaft 12 is supported on the upper shell 2 through an upper bearing 3, and the upper shell 2 is fixedly connected with the lower shell 1 through a fastener; the spindle system formed by the method has three annular cavities, namely a cavity A formed by an annular groove between the inner circumferential surface of the lower shell 1 and the outer circumferential surface of the spindle 12, a cavity B formed by an annular groove in the barrel body of the spindle 12 and a cavity C between the inner circumferential surface of the spindle 12 and the outer circumferential surface of a central boss of the lower shell 1; the three layers of cavities are coaxially nested from outside to inside.
As shown in fig. 2, the driving motor is installed in the cavity a, and the rotary connector is installed in the cavity B; the driving motor rotor 7 is coaxially sleeved in an annular groove on the outer circumference of the main shaft 12, fixedly connected with the main shaft 12 and rotated along with the main shaft 12, and the driving motor stator 8 is arranged in an annular space between the inner circumference of the lower shell 1 and the driving motor rotor 7 and fixedly connected with the lower shell 1; the rotary connector rotor 5 and the rotary connector stator 6 are coaxially installed in the cavity B, wherein the rotary connector stator 6 is fixedly connected with the upper shell 2, and the rotary connector rotor 5 is fixedly connected with the main shaft 12 and rotates along with the main shaft 12.
As shown in fig. 3, the resolver is installed in the cavity C, wherein the resolver rotor 9 is fixedly connected to the main shaft 12 and rotates along with the main shaft 12, and the resolver stator 10 is fixedly connected to the central boss of the lower case 1.
As shown in fig. 4, the adapter 11 is coaxially sleeved inside the main shaft 12 for overlapping other devices.
Therefore, a nested parallel coaxial rotary structure capable of realizing coaxial rotation of the rotary connector, the driving motor and the resolver is formed, namely the multilayer nested coaxial rotary table body.
The coaxial rotary structure comprises the following installation steps:
firstly, the lower bearing 4 is installed on the lower shell 1, then the main shaft 12 and the lower bearing 4 are installed in a matching mode, after the assembling is completed, the upper shell 2 and the upper bearing 3 are respectively installed on the lower shell 1 and the main shaft 12, the installation of the main shaft system is achieved, and the rotation uniformity of the main shaft system is checked.
After the rotation uniformity of the main shaft system is checked, the upper shell 2 and the upper bearing 3 are detached, then the driving motor rotor 7 is assembled on the first layer of outer wall of the main shaft 12, and the driving motor stator 8 is assembled on the lower shell 1. Assembling the upper shell 2 on the lower shell 1 after completion; then the rotary connector rotor 5 is assembled on the second layer of outer wall of the main shaft 12, the rotary connector stator 6 is assembled on the corresponding connecting interface of the upper shell 2, and then the upper bearing 3 is assembled on the corresponding position.
After the assembly, the resolver rotor 9 is installed on the inner wall connecting interface of the main shaft 12, and the resolver stator is assembled on the lower shell 1, so that the assembly of the multilayer nested coaxial rotary structure rotary table body is completed. After the above process is completed, the adapter cylinder 11 is sleeved inside the main shaft 12, so that the integrity of the whole rotary table body is ensured.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. A multilayer nested parallel type coaxial rotary structure is characterized in that: the method comprises the following steps: a housing, a spindle (12) and two or more coaxial rotary members;
the main shaft (12) is supported inside the shell through a bearing;
more than two annular cavities coaxial with the main shaft (12) are arranged between the shell and the main shaft (12) along the radial direction, and the annular cavities correspond to the coaxial rotary components one to one and are respectively used for mounting each coaxial rotary component;
the rotating part of the coaxial rotating part is fixedly connected with the main shaft (12) and rotates along with the main shaft (12), and the fixed part is fixedly connected with the shell.
2. The multi-layer nested parallel coaxial gyroscope of claim 1, further comprising: comprises three coaxial rotating parts, wherein the three coaxial rotating parts are respectively: a drive motor, a rotary connector and a resolver;
the main shaft (12) is of a cylindrical structure with a central through hole, annular grooves coaxial with the central through hole are respectively processed in the cylinder body and on the outer circumferential surface of the main shaft, and a central boss of the shell extends into the central hole of the main shaft (12); three annular cavities distributed along the radial direction are formed between the shell and the main shaft (12), namely a cavity A between the inner circumferential surface of the shell and the outer circumferential surface of the main shaft (12), a cavity B formed by an annular groove in the barrel body of the main shaft (12) and a cavity C between the inner circumferential surface of the main shaft (12) and the outer circumferential surface of a central boss of the shell;
the driving motor is coaxially arranged in the cavity A, the rotary connector is coaxially arranged in the cavity B, and the resolver is coaxially arranged in the cavity C; wherein the drive motor rotor (7), the rotary connector rotor (5) and the resolver rotor (9) are fixedly connected with the main shaft (12) respectively; and the driving motor stator (8), the rotary connector stator (6) and the resolver stator (10) are fixedly connected with the shell respectively.
3. A multi-layer nested parallel coaxial rotary structure of claim 2, wherein: the shell comprises a lower shell (1) and an upper shell (2);
the lower end of the main shaft (12) is supported on a central boss of the lower shell (1) through a lower bearing (4); the upper end of the upper shell is supported on the upper shell (2) through an upper bearing (3), and the upper shell (2) is coaxially butted with the lower shell (1).
4. A multi-layer nested parallel coaxial rotary structure of claim 3, wherein: the driving motor stator (8) is fixedly connected with the lower shell (1); the rotary connector stator (6) is fixedly connected with the upper shell (2); the resolver stator (10) is fixedly connected with a central boss of the lower shell (1).
5. A multi-tier nested parallel coaxial rotary structure according to any one of claims 1 to 3, characterized in that: the spindle is characterized by further comprising an adapter cylinder (11), wherein the adapter cylinder (11) is coaxially sleeved inside the spindle (12).
CN202110842168.7A 2021-07-26 2021-07-26 Multilayer nested parallel coaxial rotary structure Active CN113644798B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110842168.7A CN113644798B (en) 2021-07-26 2021-07-26 Multilayer nested parallel coaxial rotary structure

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Application Number Priority Date Filing Date Title
CN202110842168.7A CN113644798B (en) 2021-07-26 2021-07-26 Multilayer nested parallel coaxial rotary structure

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CN113644798A true CN113644798A (en) 2021-11-12
CN113644798B CN113644798B (en) 2023-03-31

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2005200971A1 (en) * 1999-10-18 2005-04-07 Lg Electronics Inc. A driving unit for a drum type washing machine
CN102142747A (en) * 2011-02-23 2011-08-03 中科盛创（青岛）电气有限公司 Nested mouse-cage type direct-driving wind driven generator with three-stator structure
CN102832767A (en) * 2012-09-07 2012-12-19 南京航空航天大学 Parallel hybrid excitation brushless direct-current fault-tolerant motor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2005200971A1 (en) * 1999-10-18 2005-04-07 Lg Electronics Inc. A driving unit for a drum type washing machine
CN102142747A (en) * 2011-02-23 2011-08-03 中科盛创（青岛）电气有限公司 Nested mouse-cage type direct-driving wind driven generator with three-stator structure
CN102832767A (en) * 2012-09-07 2012-12-19 南京航空航天大学 Parallel hybrid excitation brushless direct-current fault-tolerant motor

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