CN217362852U - Fixing tool for through-shaft permanent magnet motor rotor in transportation - Google Patents
Fixing tool for through-shaft permanent magnet motor rotor in transportation Download PDFInfo
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- CN217362852U CN217362852U CN202122759444.1U CN202122759444U CN217362852U CN 217362852 U CN217362852 U CN 217362852U CN 202122759444 U CN202122759444 U CN 202122759444U CN 217362852 U CN217362852 U CN 217362852U
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- shaped gasket
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
The invention discloses a fixing tool for a through-shaft permanent magnet motor rotor in transportation, which solves the problem that the stator and the rotor of the existing motor are easy to collide in the transportation process. Designing a T-shaped or L-shaped gasket, respectively arranging two inner end covers in the inner cavity of a motor base, inserting the gasket into an annular gap formed between the inner end cover of the motor and a rotor magnet yoke bracket of the assembled through-shaft motor at intervals, and fixedly connecting the T-shaped or L-shaped gasket with the inner end cover of the motor and the rotor magnet yoke bracket respectively through bolts to ensure that a motor rotor is fixedly connected with the end cover of the motor base, so that a gap between a motor stator and a motor rotor is kept unchanged in the transportation process, and the collision between rotor magnetic steel and a stator iron core is avoided; the safety of the magnetic steel is ensured.
Description
Technical Field
The invention relates to a through-shaft permanent magnet motor, in particular to a fixing tool and a fixing method for a through-shaft permanent magnet motor rotor in transportation.
Background
The shaft penetrating permanent magnet generator is a motor with the main shaft of a diesel engine on a ship as the rotating shaft of a motor rotor, adopts a flange pin to directly connect a motor rotor bracket with a main shaft flange, and is characterized in that: the motor is not provided with a rotor rotating shaft and a bearing, and a main shaft of a diesel engine on a ship is connected in a rotor bracket of the permanent magnet generator in a penetrating way; one end of a main shaft of the diesel engine is connected to the diesel engine, the other end of the main shaft is connected with a propeller, the main shaft is positioned and installed on a ship, the main shaft does not need to be installed and positioned through a bearing on a motor end cover, and a stator of a shaft penetrating motor is fixed on a cabin bottom plate base; the rotor magnetic yoke of the shaft penetrating motor is a cylindrical magnetic yoke rolled by a steel plate, an annular flange plate support of the rotor is arranged in an inner cavity of the cylinder, a main shaft flange plate is arranged on a main shaft of the diesel engine, after the main shaft penetrates into an inner hole of the cylindrical magnetic yoke, the annular flange plate support in the inner cavity of the cylindrical rotor magnetic yoke is butted with the main shaft flange plate, and the main shaft flange plate and the annular flange plate support of the rotor magnetic yoke are fixedly connected together through bolts and pins, so that the rotor of the shaft penetrating motor is formed; the rotor yoke bracket of the through-shaft permanent magnet motor used on the existing ship is in a single-flange structure form, the single flange plate is arranged in the middle of the inner cavity of a rotor yoke cylinder, when the through-shaft installation is carried out on site, a diesel engine main shaft penetrates through a motor rotor, a flange plate on the main shaft is fixedly butted with an annular flange plate bracket in the middle of the inner cavity of the rotor yoke cylinder, and the inner cavity of the yoke cylinder is divided into two independent spaces; the annular flange plate support is positioned in the center of the motor rotor, and the connecting structure has the defects of inconvenient field assembly, time and labor consumption and non-circulation of air in the inner cavity of the magnetic yoke cylinder, so that the cooling effect of the motor rotor and the end part of the stator is greatly reduced.
The cooling mode of the through-shaft permanent magnet motor used on the existing ship is air-cooled, and circulating cooling air carries heat in the motor out of the motor, is cooled by a water cooler on the outer side of the motor and then circulates into the motor, so that the effect of cooling the motor is achieved; this cooling method has the following problems: (1) the cooler of the motor needs to occupy a large installation space, and when the installation space of the motor on a ship is limited, the installation is difficult; (2) for the marine motor with harsh requirement on cooling index, the cooling effect of the air-cooled shaft-penetrating motor can not meet the marine requirement sometimes; (3) and a forced fan serving as a cooling air source is required to be arranged, so that the installation space of the equipment is increased, and the consumption of electric energy on a ship is increased.
The stator and the rotor of the through-shaft permanent magnet motor are generally manufactured and assembled by manufacturers, and need to be transported to a ship by a transport tool for installation; in the loading, unloading and transporting processes of the through-shaft type permanent magnet motor, the rotor of the through-shaft type motor is easy to collide with a stator core, so that the magnetic steel on the rotor is damaged, the magnetic steel on the rotor is expensive in manufacturing cost and fragile in texture, and the rotor is damaged due to slight collision; therefore, a convenient and practical fixing tool used in the rotor transportation process is developed, and the tool can be used in the subsequent separation process of the rotor and the main shaft, so that the problem to be solved by a designer is solved.
Disclosure of Invention
The invention provides a fixing tool and a fixing method for a through-shaft permanent magnet motor rotor in transportation, and solves the technical problem that a stator and a rotor of an existing motor are easy to collide in the transportation process.
The invention solves the technical problems by the following technical scheme:
the general concept of the invention is: designing a T-shaped or L-shaped gasket, arranging two inner end covers in the inner cavity of the motor base respectively, inserting the gasket into an annular gap formed between the inner end cover of the motor and a rotor magnetic yoke bracket of the assembled shaft-penetrating motor at intervals, and fixedly connecting the T-shaped or L-shaped gasket with the inner end cover of the motor and the rotor magnetic yoke bracket respectively through bolts to fixedly connect a motor rotor and the end cover of the motor base together, so that a gap between the motor stator and the motor rotor is kept unchanged in the transportation process, and the collision of rotor magnetic steel and a stator core is avoided; meanwhile, the sizes of the T-shaped gasket and the L-shaped gasket and the matching tolerance of the inner end cover and the connecting rib plate are reasonably designed, the gap deviation between the rotor and the stator is ensured to be within the deviation allowed by the electromagnetic design of the motor, the air gap is not required to be adjusted again on the installation site of the shaft penetrating motor after the motor stator and the rotor are connected through the gasket, and the difficulty of site operation work is reduced.
A fixing tool for a through-shaft permanent magnet motor rotor in transportation comprises a diesel engine spindle and a motor base, wherein a stator core is arranged in the motor base, a cylindrical rotor magnetic yoke is arranged in the stator core, a magnetic steel block is arranged on the cylindrical rotor magnetic yoke, an annular gap between a stator and the rotor is arranged between the magnetic steel block and the stator core, a motor left end cover and a motor right end cover are respectively arranged on the motor base, the diesel engine spindle is connected between a center hole of the motor left end cover and a center hole of the motor right end cover in a penetrating manner, a rotor magnetic yoke left support ring and a rotor magnetic yoke right support ring are respectively connected to the diesel engine spindle, connecting rib plates are arranged between the rotor magnetic yoke left support ring and the rotor magnetic yoke right support ring at equal intervals in radian, and a cylindrical rotor magnetic yoke is connected to the outer side face of each connecting rib plate; a motor left annular inner end cover is arranged in an inner cavity of the motor base on the outer side of the left end of the connecting rib plate, the left end of the connecting rib plate is arranged in a central hole of the motor left annular inner end cover, a T-shaped gasket is arranged between a left end outer side vertical surface of the connecting rib plate and a left side vertical surface of the motor left annular inner end cover, and a middle tongue plate of the T-shaped gasket is arranged in a gap formed between the inner side wall of the central hole of the motor left annular inner end cover and the outer side surface of the connecting rib plate; the motor right annular inner end cover is arranged in an inner cavity of the motor base on the outer side of the right end of the connecting rib plate, the right end of the connecting rib plate is arranged in a center hole of the motor right annular inner end cover, an L-shaped gasket is arranged between a right end outer side vertical surface of the connecting rib plate and a right side vertical surface of the motor right annular inner end cover, and a bottom tongue plate of the L-shaped gasket is arranged in a gap formed between the inner side wall of the center hole of the motor right annular inner end cover and the outer side surface of the connecting rib plate.
An upper T-shaped gasket connecting screw hole and a lower T-shaped gasket connecting screw hole are respectively formed in the T-shaped gasket, a connecting bolt penetrates through the upper T-shaped gasket connecting screw hole to fixedly connect the T-shaped gasket with the right annular inner end cover of the motor, another fixing bolt penetrates through the lower T-shaped gasket connecting screw hole to fixedly connect the T-shaped gasket with the connecting rib plate, and the lower bottom surface of the middle tongue plate of the T-shaped gasket is a T-shaped gasket arc-shaped matching surface; the upper part of the L-shaped gasket is provided with an L-shaped gasket connecting screw hole, a third fixing bolt is connected with the screw hole through the L-shaped gasket to fixedly connect the L-shaped gasket with the inner end cover of the right ring of the motor, and the lower bottom surface of the bottom tongue plate of the L-shaped gasket is an arc-shaped matching surface of the L-shaped gasket.
A fixing method for a through-shaft permanent magnet motor rotor in transportation comprises the steps that a left annular inner end cover and a right annular inner end cover of a motor are respectively arranged in an inner cavity of a motor base, the left annular inner end cover of the motor is arranged between a left end cover of the motor and a stator core, the left end of a connecting rib plate is arranged in a center hole of the left annular inner end cover of the motor, and the vertical face of the left end of the connecting rib plate is flush with the vertical face of the outer side of the left annular inner end cover of the motor; the motor right ring-shaped inner end cover is arranged between the stator core and the motor right end cover, and the right end of the connecting rib plate penetrates out of a center hole of the motor right ring-shaped inner end cover, and the motor right ring-shaped inner end cover is characterized by comprising the following steps of:
the method comprises the following steps that firstly, a middle tongue plate of a T-shaped gasket is arranged in a gap formed between the inner side wall of a center hole of a left annular inner end cover of a motor and the outer side surface of a connecting rib plate, a connecting bolt penetrates through a connecting screw hole in the T-shaped gasket and is fixedly connected with the left annular inner end cover of the motor, and the other connecting bolt penetrates through a lower connecting screw hole in the T-shaped gasket and is fixedly connected with the left end of the connecting rib plate;
secondly, according to the method in the first step, a T-shaped gasket is arranged at a gap between each connecting rib plate and the inner end cover of the left ring-shaped motor, the left end of the rotor is fixedly connected with the motor base, and the gap between the left end of the rotor and the stator is fixed through a middle tongue plate of the T-shaped gasket;
thirdly, arranging a bottom tongue plate of the L-shaped gasket in a gap formed between the inner side wall of a center hole of the right annular inner end cover of the motor and the outer side surface of the connecting rib plate, and connecting a third connecting bolt with the right annular inner end cover of the motor through a connecting screw hole of the L-shaped gasket;
and fourthly, according to the method in the third step, arranging an L-shaped gasket at a gap formed between each connecting rib plate and the inner side wall of the central hole of the right annular inner end cover of the motor, connecting the right end of the rotor with the base of the motor in a jacking way, and ensuring that the gap between the right end of the rotor and the stator is fixed through a bottom tongue plate of the L-shaped gasket.
The invention ensures that the rotor is fixed in the transportation process of the shaft penetrating motor, avoids the collision of the rotor and the stator and ensures the safety of the magnetic steel.
Drawings
FIG. 1 is a schematic structural view of the present invention when a T-shaped spacer and an L-shaped spacer are padded between the yoke bracket and two inner end covers of the motor;
FIG. 2 is a schematic view of the construction of the T-shaped shim 24 of the present invention;
FIG. 3 is a schematic view of the structure of the L-shaped shim 25 of the present invention;
FIG. 4 is a schematic view of the structure of the motor of the present invention viewed in the front left direction;
FIG. 5 is a schematic structural view of the motor of the present invention viewed in a right-front direction;
fig. 6 is a schematic structural diagram of a cooling water path provided in the motor base 18 according to the present invention;
FIG. 7 is a schematic view of the rotor of the present invention in a front left orientation;
fig. 8 is a schematic view of the structure of the rotor of the present invention in the right front direction;
FIG. 9 is a schematic view of the construction of the rotor yoke and its support of the present invention;
fig. 10 is a schematic structural view of the diesel engine main shaft 9 of the present invention.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
a fixing tool for a through-shaft permanent magnet motor rotor in transportation comprises a diesel engine main shaft 9 and a motor base 18, a stator core 35 is provided in the motor base 18, a cylindrical rotor yoke 7 is provided in the stator core 35, a magnetic steel block 8 is arranged on the cylindrical rotor magnetic yoke 7, an annular gap between the stator and the rotor is arranged between the magnetic steel block 8 and the stator iron core 35, a motor left end cover 19 and a motor right end cover 21 are respectively arranged on the motor base 18, the diesel engine main shaft 9 is connected between the central hole of the motor left end cover 19 and the central hole of the motor right end cover 21 in a penetrating way, a rotor magnetic yoke left support ring 1 and a rotor magnetic yoke right support ring 2 are respectively connected on a main shaft 9 of the diesel engine, a connecting rib plate 3 is arranged between the rotor magnet yoke left support ring 1 and the rotor magnet yoke right support ring 2 at equal intervals in radian, and a cylindrical rotor magnet yoke 7 is connected to the outer side surface of the connecting rib plate 3; a motor left annular inner end cover 33 is arranged in an inner cavity of the motor base 18 on the outer side of the left end of the connecting rib plate 3, the left end of the connecting rib plate 3 is arranged in a central hole of the motor left annular inner end cover 33, a T-shaped gasket 24 is arranged between a left end outer side vertical surface of the connecting rib plate 3 and a left side vertical surface of the motor left annular inner end cover 33, and a middle tongue plate 26 of the T-shaped gasket 24 is arranged in a gap formed between the inner side wall of the central hole of the motor left annular inner end cover 33 and the outer side surface of the connecting rib plate 3; a motor right annular inner end cover 34 is arranged in an inner cavity of the motor base 18 on the outer side of the right end of the connecting rib plate 3, the right end of the connecting rib plate 3 is arranged in a center hole of the motor right annular inner end cover 34, an L-shaped gasket 25 is arranged between the outer side vertical surface of the right end of the connecting rib plate 3 and the right side vertical surface of the motor right annular inner end cover 34, and a bottom tongue plate 30 of the L-shaped gasket 25 is arranged in a gap formed between the inner side wall of the center hole of the motor right annular inner end cover 34 and the outer side surface of the connecting rib plate 3.
The T-shaped gasket 24 is respectively provided with an upper T-shaped gasket connecting screw hole 27 and a lower T-shaped gasket connecting screw hole 28, a connecting bolt penetrates through the upper T-shaped gasket connecting screw hole 27 to fixedly connect the T-shaped gasket 24 with the right annular inner end cover 34 of the motor, another fixing bolt penetrates through the lower T-shaped gasket connecting screw hole 28 to fixedly connect the T-shaped gasket 24 with the connecting rib plate 3, and the lower bottom surface of the middle tongue plate 26 of the T-shaped gasket 24 is a T-shaped gasket arc-shaped matching surface 29; an L-shaped gasket connecting screw hole 31 is formed in the upper portion of the L-shaped gasket 25, a third fixing bolt fixedly connects the L-shaped gasket 25 with a right annular inner end cover 34 of the motor through the L-shaped gasket connecting screw hole 31, and the lower bottom surface of a bottom tongue plate 30 of the L-shaped gasket 25 is an L-shaped gasket arc-shaped matching surface 32.
A fixing method of a through-shaft permanent magnet motor rotor in transportation comprises the steps that a motor left annular inner end cover 33 and a motor right annular inner end cover 34 are respectively arranged in an inner cavity of a motor base 18, the motor left annular inner end cover 33 is arranged between a motor left end cover 19 and a stator core 35, the left end of a connecting rib plate 3 is arranged in a center hole of the motor left annular inner end cover 33, and the left end vertical face of the connecting rib plate 3 is flush with the outer side vertical face of the motor left annular inner end cover 33; the motor right annular inner end cover 34 is arranged between the stator core 35 and the motor right end cover 21, and the right end of the connecting rib plate 3 penetrates out of a center hole of the motor right annular inner end cover 34, and the motor right annular inner end cover connecting structure is characterized by comprising the following steps:
firstly, arranging a middle tongue plate 26 of a T-shaped gasket 24 in a gap formed between the inner side wall of a central hole of a left annular inner end cover 33 of the motor and the outer side surface of the connecting rib plate 3, fixedly connecting a connecting bolt with the left annular inner end cover 33 of the motor through an upper connecting screw hole 27 of the T-shaped gasket, and fixedly connecting another connecting bolt with the left end of the connecting rib plate 3 through a lower connecting screw hole 28 of the T-shaped gasket;
secondly, according to the method in the first step, a T-shaped gasket 24 is arranged at a gap between each connecting rib plate 3 and the left annular inner end cover 33 of the motor, the left end of the rotor is fixedly connected with the motor base 18, and a gap between the left end of the rotor and the stator is ensured to be constant through a middle tongue plate 26 of the T-shaped gasket 24;
thirdly, arranging a bottom tongue plate 30 of the L-shaped gasket 25 in a gap formed between the inner side wall of a central hole of a right annular inner end cover 34 of the motor and the outer side surface of the connecting rib plate 3, and connecting a third connecting bolt with the right annular inner end cover 34 of the motor through an L-shaped gasket connecting screw hole 31;
fourthly, according to the method of the third step, an L-shaped gasket 25 is arranged at a gap formed between each connecting rib plate 3 and the inner side wall of the central hole of the right annular inner end cover 34 of the motor, the right end of the rotor is connected with the motor base 18 in a butting mode, and the gap between the left end of the rotor and the stator is guaranteed to be fixed through a bottom tongue plate 30 of the L-shaped gasket 25.
Claims (2)
1. A fixing tool for a through-shaft permanent magnet motor rotor in transportation comprises a diesel engine main shaft (9) and a motor base (18), wherein a stator iron core (35) is arranged in the motor base (18), a cylindrical rotor magnetic yoke (7) is arranged in the stator iron core (35), a magnetic steel block (8) is arranged on the cylindrical rotor magnetic yoke (7), an annular gap between a stator and a rotor is arranged between the magnetic steel block (8) and the stator iron core (35), a motor left end cover (19) and a motor right end cover (21) are respectively arranged on the motor base (18), the diesel engine main shaft (9) is connected between a center hole of the motor left end cover (19) and a center hole of the motor right end cover (21) in a penetrating manner, and is characterized in that the diesel engine main shaft (9) is respectively connected with a rotor magnetic yoke left support ring (1) and a rotor magnetic yoke right support ring (2), and a rotor magnetic yoke left support ring (1) and a rotor magnetic yoke right support ring (2) are arranged between the rotor magnetic yoke left support ring (9), connecting rib plates (3) are arranged at equal intervals in a radian manner, and the outer side surfaces of the connecting rib plates (3) are connected with cylindrical rotor magnet yokes (7); a motor left annular inner end cover (33) is arranged in an inner cavity of a motor base (18) on the outer side of the left end of the connecting rib plate (3), the left end of the connecting rib plate (3) is arranged in a center hole of the motor left annular inner end cover (33), a T-shaped gasket (24) is arranged between a vertical surface of the outer side of the left end of the connecting rib plate (3) and a vertical surface of the left side of the motor left annular inner end cover (33), and a middle tongue plate (26) of the T-shaped gasket (24) is arranged in a gap formed between the inner side wall of the center hole of the motor left annular inner end cover (33) and the outer side face of the connecting rib plate (3); a motor right annular inner end cover (34) is arranged in an inner cavity of a motor base (18) on the outer side of the right end of the connecting rib plate (3), the right end of the connecting rib plate (3) is arranged in a center hole of the motor right annular inner end cover (34), an L-shaped gasket (25) is arranged between a right end outer side vertical surface of the connecting rib plate (3) and a right side vertical surface of the motor right annular inner end cover (34), and a bottom tongue plate (30) of the L-shaped gasket (25) is arranged in a gap formed between the inner side wall of the center hole of the motor right annular inner end cover (34) and the outer side surface of the connecting rib plate (3).
2. The fixing tool for the through-shaft permanent magnet motor rotor in transportation according to claim 1, characterized in that an upper T-shaped gasket connecting screw hole (27) and a lower T-shaped gasket connecting screw hole (28) are respectively formed in a T-shaped gasket (24), a connecting bolt penetrates through the upper T-shaped gasket connecting screw hole (27) to fixedly connect the T-shaped gasket (24) and a right annular inner end cover (34) of the motor together, another fixing bolt penetrates through the lower T-shaped gasket connecting screw hole (28) to fixedly connect the T-shaped gasket (24) and a connecting rib plate (3) together, and the lower bottom surface of a middle tongue plate (26) of the T-shaped gasket (24) is a T-shaped gasket arc-shaped matching surface (29); an L-shaped gasket connecting screw hole (31) is formed in the upper portion of the L-shaped gasket (25), a third fixing bolt fixedly connects the L-shaped gasket (25) with a right annular inner end cover (34) of the motor through the L-shaped gasket connecting screw hole (31), and the lower bottom surface of a bottom tongue plate (30) of the L-shaped gasket (25) is an L-shaped gasket arc-shaped matching surface (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122759444.1U CN217362852U (en) | 2021-11-11 | 2021-11-11 | Fixing tool for through-shaft permanent magnet motor rotor in transportation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122759444.1U CN217362852U (en) | 2021-11-11 | 2021-11-11 | Fixing tool for through-shaft permanent magnet motor rotor in transportation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217362852U true CN217362852U (en) | 2022-09-02 |
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ID=83009277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122759444.1U Active CN217362852U (en) | 2021-11-11 | 2021-11-11 | Fixing tool for through-shaft permanent magnet motor rotor in transportation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217362852U (en) |
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2021
- 2021-11-11 CN CN202122759444.1U patent/CN217362852U/en active Active
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