CN112039274A - High-power high-torque direct-drive motor - Google Patents

High-power high-torque direct-drive motor Download PDF

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Publication number
CN112039274A
CN112039274A CN202011004075.9A CN202011004075A CN112039274A CN 112039274 A CN112039274 A CN 112039274A CN 202011004075 A CN202011004075 A CN 202011004075A CN 112039274 A CN112039274 A CN 112039274A
Authority
CN
China
Prior art keywords
cooling
main shaft
drive motor
stator
direct drive
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
CN202011004075.9A
Other languages
Chinese (zh)
Inventor
张冬
赵叶坤
程文发
林守金
林鑫
方园
黄冠锋
王君毅
龚德明
邹晓阳
周昌
王昆
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.)
Zhongshan Mltor Cnc Technology Co ltd
Original Assignee
Zhongshan Mltor Cnc Technology 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 Zhongshan Mltor Cnc Technology Co ltd filed Critical Zhongshan Mltor Cnc Technology Co ltd
Priority to CN202011004075.9A priority Critical patent/CN112039274A/en
Publication of CN112039274A publication Critical patent/CN112039274A/en
Pending legal-status Critical Current

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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
    • 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
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • 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
    • H02K7/08—Structural association with bearings
    • H02K7/083—Structural association with bearings radially supporting the rotary shaft at both ends of the rotor
    • 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
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

The invention discloses a high-power high-torque direct-drive motor, which comprises a motor shell, a main shaft, a rotor and a stator, wherein the main shaft, the rotor and the stator are arranged in a containing cavity of the motor shell; the invention has compact integral structure and optimized volume.

Description

High-power high-torque direct-drive motor
[ technical field ] A method for producing a semiconductor device
The application relates to the technical field of processing machine tool equipment, in particular to a high-power high-torque direct drive motor.
[ background of the invention ]
The traditional motor needs to transmit power through a mechanical transmission device (such as a gear rack, a belt pulley and the like), and the mechanical transmission device is easy to generate positioning errors in the installation process and generate reverse gaps and mechanical friction in the transmission process.
[ summary of the invention ]
The invention provides a high-power high-torque direct-drive motor which is improved aiming at the problems that a traditional motor needs to transmit power through a mechanical transmission device and positioning errors, reverse gaps and mechanical friction are easily caused.
As an improvement of the high-power high-torque direct drive motor, a circulating cooling mechanism for heat dissipation is arranged between the motor shell and the stator shell.
As an improvement of the high-power high-torque direct-drive motor, the circulating cooling mechanism comprises a plurality of cooling convex strips arranged on the stator shell at intervals, two adjacent cooling convex strips form a cooling groove, and a liquid inlet hole for inputting cooling liquid from the outside of the motor shell to the cooling groove and a liquid outlet hole for outputting the cooling liquid from the inside of the cooling groove to the outside of the motor shell are formed in the motor shell.
As an improvement of the high-power high-torque direct drive motor, the cooling convex strips comprise A cooling convex strips and B cooling convex strips, the A cooling convex strips and the B cooling convex strips are arranged in a staggered and spaced mode, and cooling gaps used for communicating two adjacent cooling grooves are formed in the A cooling convex strips.
As an improvement of the high-power high-torque direct drive motor, the main shaft is provided with a plurality of bearing assemblies coaxially arranged with the main shaft, each bearing assembly comprises a front end bearing assembly and a rear end bearing assembly which are respectively arranged on two sides of the rotor, and each rear end bearing assembly is a cylindrical roller bearing.
As an improvement of the high-power high-torque direct drive motor, the stator housing comprises a hollow stator housing body, and an upper opening and a lower opening which are respectively arranged at two ends of the stator housing body in the axial direction of the main shaft, and the stator housing body is provided with an upper pressure plate for plugging the upper opening and a lower pressure plate for plugging the lower opening; the motor shell comprises a motor shell body, a front port and a rear port, the front port and the rear port are arranged at two axial ends of the spindle, and the motor shell body is provided with a front end cover used for plugging the front port and a rear end cover used for plugging the rear port.
As an improvement of the high-power high-torque direct-drive motor, one side of the motor shell body, which is close to the front end cover, is provided with an airtight groove which is annularly arranged around the periphery of the motor shell body, the airtight groove and the inner wall of the front end cover are enclosed to form an airtight channel, the motor shell body is provided with an air inlet channel communicated with the airtight channel and an air inlet hole communicated with the air inlet channel, an air pipe joint is arranged in the air inlet hole, the front end cover and the motor shell body form a gap which is arranged around the periphery of the front end cover and communicated with the airtight channel, and air flows into the air inlet channel and the airtight channel through the air pipe joint and is discharged from the gap.
As an improvement of the high-power high-torque direct drive motor, the rear end cover is connected with a rear sealing cover which is coaxial with the main shaft.
As an improvement of the high-power high-torque direct drive motor, an encoder mounting seat which is coaxial with the main shaft is arranged between the rear end cover and the rear sealing cover, and an encoder is arranged on the encoder mounting seat.
As an improvement of the high-power high-torque direct drive motor, one end of the main shaft penetrating through the rear sealing cover is connected with a rotary oil cylinder.
Compared with the prior art, the invention has the following advantages:
the invention provides a high-power high-torque direct-drive motor which comprises a motor shell, a main shaft, a rotor and a stator, wherein the main shaft, the rotor and the stator are arranged in a containing cavity of the motor shell; the invention has compact integral structure and optimized volume.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below.
FIG. 1 is a perspective view of a high power high torque direct drive motor of the present application;
FIG. 2 is a cross-sectional view of the high power high torque direct drive motor of the present application;
FIG. 3 is a cross-sectional view of the high power high torque direct drive motor of the present application;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
fig. 5 is a perspective view of a stator housing in the high-power high-torque direct drive motor of the present application.
[ detailed description ] embodiments
In order to make the technical problems, technical solutions and advantageous effects solved by the present application more clear and obvious, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
As shown in fig. 1-5, the high-power high-torque direct drive motor includes a motor housing 1 and a spindle 2 disposed in the motor housing 1, wherein the spindle 2 is coaxially provided with a rotor 3 and a stator assembly 4 from inside to outside in a radial direction thereof, the spindle 2 is fixedly connected to the rotor 3, and the stator assembly 4 includes a stator housing 41 coaxially disposed with the spindle 2 and a stator 42 disposed in the stator housing 41 and configured to drive the rotor 3 to rotate. As can be seen from the figure, a containing cavity is arranged in the motor housing 1, the main shaft 2, the rotor 3 and the stator assembly 4 are coaxially arranged in the containing cavity, the stator 42 is arranged outside the rotor 3, and the stator housing 41 is used for fixing the stator 42. When the stator 42 is electrified, the rotor 3 and the main shaft 2 are driven to rotate, so that a large torque is generated, the output end of the main shaft 2 is directly connected with load equipment, a mechanical transmission device is not required to be arranged between the load equipment and a motor to reduce output horsepower, and the high-efficiency and convenient operation are realized; the invention has compact integral structure and optimized volume.
Specifically, the stator housing 41 includes a hollow stator housing body 411, and an upper opening and a lower opening respectively provided at two ends of the stator housing body 411 in the axial direction of the spindle 2, and an upper pressing plate 414 for blocking the upper opening and a lower pressing plate 415 for blocking the lower opening are provided on the stator housing body 411; the motor housing 1 comprises a motor housing body 11, a front port and a rear port, wherein the front port and the rear port are arranged at two axial ends of the main shaft 2, the motor housing body 11 is provided with a front end cover 14 for plugging the front port and a rear end cover 15 for plugging the rear port. The structure has good sealing performance, low noise and compactness, further optimizes the space and reduces the volume.
Further, a rear cover 300 coaxially disposed with the main shaft 2 is connected to the rear end cover 15, the rear end cover 15 and the rear cover 300 form a rear cavity, an encoder mounting base 400 coaxially disposed with the main shaft 2 is disposed in the rear cavity, an encoder 500 is disposed on the encoder mounting base 400, and the encoder 500 may be a renishao encoder. The encoder 500 can improve the accuracy of the rotation of the rotor 3. One end of the main shaft 2 penetrating through the rear sealing cover 300 is connected with a rotary oil cylinder 600, and the rotary oil cylinder 600 can increase the output torque of the main shaft 2, further reduce the output horsepower, and enable the operation precision of a mechanism connected to the output end of the main shaft 2 to be higher.
Further, a plurality of bearing assemblies 5 coaxial with the main shaft 2 are arranged on the main shaft 2, each bearing assembly 5 includes a front end bearing assembly 51 and a rear end bearing assembly 52 respectively arranged on two sides of the rotor 3, and each rear end bearing assembly 52 is a cylindrical roller bearing. As can be seen, the front end bearing assembly 51 and the rear end bearing assembly 52 are disposed along the axial direction of the main shaft 2 and are disposed on both sides of the rotor 3, respectively. The rear end bearing assembly 52 adopts a cylindrical roller bearing, so that friction is reduced, the rigidity of the shaft is enhanced, and the service life of the motor is prolonged. The structure can realize the high-speed operation with small torque and the low-speed operation with large torque.
Further, a circulating cooling mechanism 6 for heat dissipation is arranged between the motor housing 1 and the stator housing 41. Specifically, the circulating cooling mechanism 6 includes a plurality of cooling ribs 61 disposed on the stator housing 41 at intervals, two adjacent cooling ribs 61 form a cooling groove 62, and the motor housing 1 is provided with a liquid inlet hole 63 for inputting cooling liquid from the outside of the motor housing 1 to the cooling groove 62 and a liquid outlet hole for outputting cooling liquid from the inside of the cooling groove 62 to the outside of the motor housing 1. The liquid inlet hole 63 and the liquid outlet hole are oppositely arranged, cooling liquid flows into the motor housing 1 from the liquid inlet hole 63 and is conveyed into the cooling groove 62, and the cooling liquid is discharged out of the motor housing 1 through the liquid outlet hole after cooling the rotor 3, the spindle 2 and the bearing assembly 5, so that a closed circulating cooling path is formed.
Specifically, the cooling ribs 61 include a cooling ribs 611 and a cooling ribs 612, the cooling ribs 611 and the cooling ribs 612 are arranged at intervals, and the cooling ribs 611 are provided with cooling notches 7 for communicating two adjacent cooling grooves 62. This structure is advantageous in that the cooling liquid must flow around one cooling groove 62 before flowing from one cooling groove 62 to another adjacent cooling groove 62, so as to achieve complete cooling, and avoid incomplete cooling caused by the direct flow of the cooling liquid from one cooling groove 62 to another adjacent cooling groove 62.
Further, motor housing body 11 is close to one side of front end housing 14 is equipped with around motor housing body 11 week side annular setting's airtight recess 8, airtight recess 8 with front end housing 14 inner wall encloses and covers and form airtight passageway 9, be equipped with on motor housing body 11 with the inlet channel 10 of airtight passageway 9 intercommunication and with the inlet port of inlet channel 10 intercommunication, be equipped with air pipe connector 100 in the inlet port, front end housing 14 with motor housing body 11 forms around 14 week side of front end housing set up and with the clearance 200 of airtight passageway 9 intercommunication, gaseous warp air pipe connector 100 flows in inlet channel 10 with behind the airtight passageway 9 by clearance 200 discharges. By means of the structure, scraps can be prevented from entering the motor shell 1 to damage the direct drive motor in the machining process, and the service life of the direct drive motor is shortened.
It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present application. Furthermore, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The foregoing is illustrative of one or more embodiments provided in connection with the detailed description and is not intended to limit the disclosure to the particular forms disclosed. Similar or identical methods, structures, etc. as used herein, or several technical inferences or substitutions made on the concept of the present application should be considered as the scope of the present application.

Claims (10)

1. High-power high-torque direct drive motor, its characterized in that includes motor housing (1) and locates main shaft (2) in motor housing (1), main shaft (2) are at its radial from inside to outside coaxial rotor (3) and stator module (4) of being equipped with, main shaft (2) with rotor (3) fixed connection, stator module (4) including with stator housing (41) of main shaft (2) coaxial setting with locate be used for the drive in stator housing (41) rotor (3) pivoted stator (42).
2. The high-power high-torque direct drive motor according to claim 1, wherein a circulating cooling mechanism (6) for heat dissipation is arranged between the motor housing (1) and the stator housing (41).
3. The high-power high-torque direct drive motor according to claim 2, wherein the circulating cooling mechanism (6) comprises a plurality of cooling ribs (61) arranged on the stator housing (41) at intervals, two adjacent cooling ribs (61) form a cooling groove (62), and the motor housing (1) is provided with a liquid inlet hole (63) for inputting cooling liquid from the outside of the motor housing (1) to the cooling groove (62) and a liquid outlet hole for outputting cooling liquid from the inside of the cooling groove (62) to the outside of the motor housing (1).
4. The high-power high-torque direct drive motor according to claim 3, wherein the cooling ribs (61) comprise A cooling ribs (611) and B cooling ribs (612), the A cooling ribs (611) and the B cooling ribs (612) are arranged in a staggered and spaced manner, and cooling notches (7) for communicating two adjacent cooling grooves (62) are formed in the A cooling ribs (611).
5. The high-power high-torque direct-drive motor according to claim 1, wherein a plurality of bearing assemblies (5) are arranged on the main shaft (2) and are coaxial with the main shaft (2), each bearing assembly (5) comprises a front bearing assembly (51) and a rear bearing assembly (52) which are respectively arranged on two sides of the rotor (3), and each rear bearing assembly (52) is a cylindrical roller bearing.
6. The high-power high-torque direct drive motor according to claim 1, wherein the stator housing (41) comprises a hollow stator housing body (411) and an upper opening and a lower opening which are respectively arranged on the stator housing body (411) at two axial ends of the spindle (2), and an upper pressure plate (414) for sealing the upper opening and a lower pressure plate (415) for sealing the lower opening are arranged on the stator housing body (411); the motor housing (1) comprises a motor housing body (11) and is arranged at the two ends of the main shaft (2) in the axial direction, wherein the motor housing body (11) comprises a front port and a rear port, the front end cover (14) and the rear end cover (15) are arranged on the motor housing body (11) and used for plugging the front port and the rear port.
7. The high-power high-torque direct drive motor according to claim 6, wherein one side of the motor housing body (11) close to the front end cover (14) is provided with an airtight groove (8) annularly arranged around the peripheral side of the motor housing body (11), the airtight groove (8) and the inner wall of the front end cover (14) are enclosed to form an airtight channel (9), an air inlet channel (10) communicated with the airtight channel (9) and an air inlet communicated with the air inlet channel (10) are arranged on the motor shell body (11), be equipped with in the inlet port and connect (100) trachea, front end housing (14) with motor housing body (11) form around front end housing (14) week side set up and with clearance (200) of airtight passageway (9) intercommunication, gaseous warp trachea joint (100) flow in inlet channel (10) with behind airtight passageway (9) by clearance (200) are discharged.
8. The high-power high-torque direct drive motor according to claim 4, wherein a rear cover (300) which is arranged coaxially with the main shaft (2) is connected to the rear end cover (15).
9. The high-power high-torque direct drive motor according to claim 7, wherein an encoder mounting seat (400) which is coaxial with the main shaft (2) is arranged between the rear end cover (15) and the rear sealing cover (300), and an encoder (500) is arranged on the encoder mounting seat (400).
10. The high-power high-torque direct drive motor according to claim 7, wherein one end of the main shaft (2) penetrating through the rear cover (300) is connected with a rotary oil cylinder (600).
CN202011004075.9A 2020-09-22 2020-09-22 High-power high-torque direct-drive motor Pending CN112039274A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011004075.9A CN112039274A (en) 2020-09-22 2020-09-22 High-power high-torque direct-drive motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011004075.9A CN112039274A (en) 2020-09-22 2020-09-22 High-power high-torque direct-drive motor

Publications (1)

Publication Number Publication Date
CN112039274A true CN112039274A (en) 2020-12-04

Family

ID=73574978

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011004075.9A Pending CN112039274A (en) 2020-09-22 2020-09-22 High-power high-torque direct-drive motor

Country Status (1)

Country Link
CN (1) CN112039274A (en)

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