An electrically excited double-salient-pole motor with a composite stator

Abstract

The present invention discloses an electrically excited double-pole motor with a composite stator in the technical field of salient-pole motors, comprising a motor housing, a motor back cover being arranged on the right side of the motor housing, a sealing sleeve being sleeved and mounted on the outer wall of the motor housing and matching the motor back cover, four groups of fixing blocks being arranged on the outer wall of the motor back cover, two groups of first plug holes being arranged on the outer wall of the four groups of fixing blocks, four groups of mounting components being arranged on the outer wall of the sealing sleeve, and a heat dissipation port being arranged on the right side wall of the motor back cover. The present invention can facilitate the disassembly and assembly of the motor back cover and the motor housing by arranging the mounting components, the fixing blocks and the first plug holes, and is convenient for regular inspection and maintenance. Therefore, when the internal components are worn, aged or contaminated and need regular inspection and cleaning, the technicians can easily access the inside of the motor and perform necessary maintenance operations, and the motor is easy to use.

Description

Technical Field

[0001] The present invention relates to the technical field of salient pole motors, in particular to an electrically excited double-salient pole motor using a composite stator. Background Art

[0002] The electrically excited double-pole motor with a composite stator combines the design of a composite stator and the advantages of an electrically excited double-pole motor. The motor mainly includes a composite stator, a salient pole rotor and an air gap. The composite stator is composed of a left armature tooth stator, an intermediate yoke stator and a right armature tooth stator in the axial direction. Both armature tooth stators are composed of an annular armature tooth stator yoke, a number of armature tooth palms and tooth heels arranged at equal intervals along the circumference, and a centralized armature winding is wound on the tooth heel. The intermediate yoke stator is composed only of an annular iron core yoke. The single annular excitation coil is placed in an annular cavity formed by the left armature tooth stator, the right armature tooth stator and the intermediate yoke stator. The salient pole inner rotor is composed only of an iron core, which is sturdy and durable, and is convenient for brushless realization;

[0003] However, the existing motor casings are mostly connected to the back cover with screws, which is inconvenient for installation and disassembly, and is not convenient for regular inspection and maintenance. As a result, when the internal components are worn, aged or contaminated and need regular inspection and cleaning, the technicians cannot easily access the inside of the motor to perform necessary maintenance operations. Secondly, the filter on the back cover of the motor is not convenient to replace. The filter is mostly a metal mesh, and the anti-rust layer is easily rubbed off when it is worn, resulting in rust damage. Therefore, we propose an electrically excited double-pole motor with a composite stator. Summary of the invention

[0004] The object of the present invention is to provide an electrically excited double-salient pole motor using a composite stator to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electrically excited double-pole motor with a composite stator, comprising a motor shell, a motor back cover is provided on the right side of the motor shell, a sealing sleeve matching the motor back cover is sleeved and installed on the outer wall of the motor shell, four groups of fixing blocks are provided on the outer wall of the motor back cover, two groups of first jacks are provided on the outer wall of the four groups of fixing blocks, four groups of mounting components are provided on the outer wall of the sealing sleeve, a heat dissipation port is provided on the right side wall of the motor back cover, a mounting ring is provided inside the heat dissipation port, a filter is provided on the inner wall of the mounting ring, four groups of fixing components are provided on the outer wall of the mounting ring, four groups of card slots are provided on the right side wall of the motor back cover, two groups of second jacks are provided on the inner wall of the four groups of card slots.

[0006] Furthermore, the mounting assembly includes a mounting block provided on the outer side wall of the sealing sleeve, a fixing groove matching the fixing block is provided on the front side wall of the mounting block, a first cavity is provided inside the mounting block, a bidirectional screw rod is provided in the first cavity, both ends of the bidirectional screw rod are respectively connected to bearings provided on the left and right side walls in the first cavity, sliders are sleeved on the left and right outer walls of the bidirectional screw rod, sliding plates are provided at the bottom of the two groups of sliders, first plug rods are provided on the outer walls of the two groups of sliding plates, and one end of the two groups of the first plug rods respectively penetrates the corresponding holes in the first cavity. The opposite side wall matches the first jack, and a driven bevel gear is sleeved on the outer wall of the bidirectional screw rod. An active bevel gear meshing with the driven bevel gear is provided in the first cavity, and a rotating shaft is provided on the top of the active bevel gear. A second cavity is opened inside the mounting block, and one end of the rotating shaft is connected with the gear provided in the second cavity. A rack meshing with the gear is slidably connected in the second cavity, and a movable plate is provided at one end of the rack. A push rod is provided on the right side wall of the movable plate, and one end of the push rod passes through the right side wall of the second cavity and is connected with an extrusion plate provided on the outside.

[0007] Furthermore, two groups of guide grooves are provided at the top of the first cavity, and guide blocks matching the guide grooves are provided at the tops of the two groups of slide blocks.

[0008] Furthermore, a limiting groove is provided on the top of the second cavity, and a limiting block matching the limiting groove is provided on the top of the movable plate.

[0009] Furthermore, a locking bolt is penetrated through the right side wall of the extrusion plate.

[0010] Furthermore, the fixing assembly includes a block provided on the outer wall of the mounting ring, the block matches the slot, a third cavity is opened inside the block, two groups of movable plates are slidably connected in the third cavity, air bags are provided between the opposite side walls of the two groups of movable plates, second plug rods are provided on the side walls away from the two groups of movable plates, springs are sleeved on the outer walls of the two groups of second plug rods, one ends of the two groups of second plug rods respectively penetrate the left and right side walls of the third cavity and match the second socket, and pull blocks are provided on the front side walls of the two groups of movable plates.

[0011] Furthermore, a sliding groove is provided on the front side wall of the clamping block, and the two groups of pulling blocks are slidably connected in the sliding groove.

[0012] Furthermore, a sealing ring is provided on the left side wall of the motor rear cover, and the sealing ring matches the motor housing.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention can facilitate the disassembly and assembly of the motor rear cover and the motor housing by providing the installation assembly, the fixing block and the first jack, and is convenient for regular inspection and maintenance. Therefore, when the internal parts are worn, aged or contaminated and need regular inspection and cleaning, the technicians can easily access the inside of the motor and perform necessary maintenance operations, which is convenient to use;

[0015] 2. The present invention can facilitate the replacement of the metal mesh made of metal material by setting the card slot, the second plug hole and the fixing assembly, without replacing the overall motor back cover, thus saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 It is a right view of the internal structure of the first cavity of the present invention;

[0018] Figure 3 A top view of the internal structure of the third cavity of the present invention;

[0019] Figure 4 It is a schematic diagram of the structure C of the present invention;

[0020] Figure 5 A schematic diagram of the structure of the present invention;

[0021] Figure 6 It is a schematic diagram of the structure B of the present invention.

[0022] In the figure: 1. motor housing; 2. mounting assembly; 20. mounting block; 21. fixing groove; 22. first cavity; 23. first plug rod; 24. sliding plate; 25. slider; 26. bidirectional screw rod; 27. driven bevel gear; 28. driving bevel gear; 29. ​​rotating shaft; 200. second cavity; 201. gear; 202. rack; 203. movable plate; 204. push rod; 205. extrusion plate; 206. locking bolt; 3. motor back cover; 4. heat dissipation port; 5. mounting ring; 6. filter screen; 7. fixing assembly; 70. clamping block; 71. third cavity; 72. air bag; 73. movable plate; 74. spring; 75. second plug rod; 76. sliding groove; 77. pulling block; 8. sealing ring; 9. fixing block; 10. first jack; 11. clamping groove; 12. second jack; 13. sealing sleeve. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Embodiment 1:

[0025] See also Figure 1-6 The present invention provides a technical solution: an electrically excited double-pole motor with a composite stator, comprising a motor shell 1, a motor back cover 3 is arranged on the right side of the motor shell 1, a sealing sleeve 13 matching the motor back cover 3 is sleeved and installed on the outer wall of the motor shell 1, a sealing ring 8 is arranged on the left side wall of the motor back cover 3, the sealing ring 8 matches the motor shell 1, and the sealing performance between the motor shell 1 and the motor back cover 3 can be improved under the action of the sealing ring 8, four groups of fixing blocks 9 are arranged on the outer side wall of the motor back cover 3, two groups of first plug holes 10 are opened on the outer side wall of the four groups of fixing blocks 9, four groups of mounting components 2 are arranged on the outer wall of the sealing sleeve 13, a heat dissipation port 4 is opened on the right side wall of the motor back cover 3, a mounting ring 5 is arranged inside the heat dissipation port 4, a filter screen 6 is arranged on the inner side wall of the mounting ring 5, four groups of fixing components 7 are arranged on the outer side wall of the mounting ring 5, four groups of card slots 11 are opened on the right side wall of the motor back cover 3, and two groups of second plug holes 12 are opened on the inner side walls of the four groups of card slots 11.

[0026] See also Figure 2 and Figure 4The mounting assembly 2 includes a mounting block 20 provided on the outer wall of the sealing sleeve 13, a fixing groove 21 matching the fixing block 9 is provided on the front side wall of the mounting block 20, a first cavity 22 is provided inside the mounting block 20, a bidirectional screw rod 26 is provided in the first cavity 22, both ends of the bidirectional screw rod 26 are respectively connected to the bearings provided on the left and right side walls in the first cavity 22, and sliders 25 are sleeved on the left and right outer walls of the bidirectional screw rod 26, two groups of guide grooves are provided on the top of the first cavity 22, and guide blocks matching the guide grooves are provided on the tops of the two groups of sliders 25. Under the action of the guide grooves and the guide blocks, the two groups of sliders 25 move more stably on the bidirectional screw rod 26, and sliding plates 24 are provided at the bottom of the two groups of sliders 25. The outer walls of the two groups of sliding plates 24 are provided with first plug rods 23, and one end of the two groups of first plug rods 23 respectively penetrates the opposite side walls in the first cavity 22 and matches the first jack 10, and the outer wall of the bidirectional screw rod 26 is sleeved with a driven bevel gear 27, a driving bevel gear 28 meshing with the driven bevel gear 27 is provided in the first cavity 22, a rotating shaft 29 is provided on the top of the driving bevel gear 28, a second cavity 200 is opened inside the mounting block 20, one end of the rotating shaft 29 is connected with the gear 201 provided in the second cavity 200, a rack 202 meshing with the gear 201 is slidably connected in the second cavity 200, a moving plate 203 is provided at one end of the rack 202, a locking bolt 206 is penetrated through the right side wall of the extrusion plate 205, and the extrusion plate 205 is fixed to the mounting block 20 by the locking bolt 206 to improve stability, a push rod 204 is provided on the right side wall of the moving plate 203, one end of the push rod 204 penetrates through the right side wall of the second cavity 200 and is connected with the extrusion plate 205 provided on the outside, a locking bolt 206 is penetrated through the right side wall of the extrusion plate 205, and the extrusion plate 205 is fixed to the mounting block 20 by the locking bolt 206 to improve stability.

[0027] See also Figure 3 The fixing assembly 7 includes a block 70 provided on the outer wall of the mounting ring 5, the block 70 matches the slot 11, a third cavity 71 is provided inside the block 70, two sets of movable plates 73 are slidably connected in the third cavity 71, an air bag 72 is provided between the opposite side walls of the two sets of movable plates 73, and the two sets of movable plates 73 are provided with second plug rods 75 on the side walls away from each other. The outer walls of the two sets of second plug rods 75 are sleeved with springs 74, one ends of the two sets of second plug rods 75 respectively penetrate the left and right side walls in the third cavity 71 and match the second plug hole 12, the front side walls of the two sets of movable plates 73 are provided with pull blocks 77, the front side walls of the block 70 are provided with a sliding groove 76, and the two sets of pull blocks 77 are slidably connected in the sliding groove 76. Under the action of the sliding groove 76, the movement of the pull blocks 77 is more stable.

[0028] Working principle: insert the fixing block 9 into the fixing groove 21, and the motor back cover 3 is inserted into the sealing sleeve 13 at this time. Under the action of the sealing ring 8, the sealing between the motor housing 1 and the motor back cover 3 can be improved. Then the staff pushes the extrusion plate 205 to drive the push rod 204 and the moving plate 203 to move, and the moving plate 203 drives the rack 202 to move, and the rack 202 drives the gear 201 to rotate, and the gear 201 drives the rotating shaft 29 to rotate, and the rotating shaft 29 drives the active bevel gear 28 to rotate, and the active bevel gear 28 drives the driven bevel gear 27 to drive, and the driven bevel gear 27 drives the bidirectional screw rod 26 to rotate. Under the action of the guide groove and the guide block, the two groups of sliders 25 move relative to the bidirectional screw rod 26, and the slider 25 drives the sliding plate 24 and the first plug rod 23 to move, and the first plug rod 23 is inserted into the first plug hole 10, and then the extrusion plate 205 is fixed to the mounting block 20 by the locking bolt 206, so as to realize the installation between the motor back cover 3 and the motor housing 1, and also facilitate disassembly;

[0029] The staff pulls the pull block 77 to drive the movable plate 73 to move and squeeze the airbag 72. The movable plate 73 drives the second plug rod 75 to move and stretches the spring 7. The second plug rod 75 moves to the third cavity 71, and then the block 70 is inserted into the slot 11. The pull block 77 is released, and the second plug rod 75 is inserted into the second hole 12 under the action of the elastic force of the spring 74, thereby realizing the installation of the filter screen 6 and facilitating disassembly.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electrically excited double-salient-pole motor with a composite stator, comprising a motor housing (1), wherein a motor rear cover (3) is provided on the right side of the motor housing (1), and characterized in that: The outer wall of the motor housing (1) is sleeved and installed with a sealing sleeve (13) matching the motor rear cover (3); the outer wall of the motor rear cover (3) is provided with four groups of fixing blocks (9); the outer walls of the four groups of fixing blocks (9) are each provided with two groups of first plug holes (10); the outer wall of the sealing sleeve (13) is provided with four groups of mounting components (2); the right side wall of the motor rear cover (3) is provided with a heat dissipation port (4); a mounting ring (5) is provided inside the heat dissipation port (4); a filter screen (6) is provided on the inner wall of the mounting ring (5); four groups of fixing components (7) are provided on the outer wall of the mounting ring (5); the right side wall of the motor rear cover (3) is provided with four groups of card slots (11); the inner walls of the four groups of card slots (11) are each provided with two groups of second plug holes (12).

2. The electrically excited double-salient-pole motor with a composite stator according to claim 1, characterized in that: The mounting assembly (2) comprises a mounting block (20) provided on the outer wall of the sealing sleeve (13), a fixing groove (21) matching the fixing block (9) is provided on the front wall of the mounting block (20), a first cavity (22) is provided inside the mounting block (20), a bidirectional screw rod (26) is provided in the first cavity (22), two ends of the bidirectional screw rod (26) are respectively connected to bearings provided on the left and right side walls of the first cavity (22), sliders (25) are sleeved on the left and right outer walls of the bidirectional screw rod (26), sliding plates (24) are provided at the bottom of the two groups of the sliders (25), first plug rods (23) are provided on the outer walls of the two groups of the sliding plates (24), one ends of the two groups of the first plug rods (23) respectively penetrate the opposite side walls of the first cavity (22) and match the first plug hole (10), A driven bevel gear (27) is sleeved on the outer wall of the bidirectional screw rod (26); a driving bevel gear (28) meshing with the driven bevel gear (27) is provided in the first cavity (22); a rotating shaft (29) is provided on the top of the driving bevel gear (28); a second cavity (200) is opened inside the mounting block (20); one end of the rotating shaft (29) is connected to a gear (201) provided in the second cavity (200); a rack (202) meshing with the gear (201) is slidably connected in the second cavity (200); a moving plate (203) is provided at one end of the rack (202); a push rod (204) is provided on the right side wall of the moving plate (203); one end of the push rod (204) passes through the right side wall of the second cavity (200) and is connected to an extrusion plate (205) provided outside.

3. The electrically excited double-salient-pole motor with a composite stator according to claim 2, characterized in that: Two groups of guide grooves are provided at the top of the first cavity (22), and guide blocks matching the guide grooves are provided at the tops of the two groups of slide blocks (25).

4. The electrically excited double-salient-pole motor with a composite stator according to claim 2, characterized in that: A limiting groove is provided at the top of the second cavity (200), and a limiting block matching the limiting groove is provided at the top of the movable plate (203).

5. The electrically excited double-salient-pole motor with a composite stator according to claim 2, characterized in that: A locking bolt (206) is provided through the right side wall of the extrusion plate (205).

6. The electrically excited double-salient-pole motor with a composite stator according to claim 1, characterized in that: The fixing assembly (7) comprises a clamping block (70) provided on the outer wall of the mounting ring (5), the clamping block (70) matches the clamping slot (11), a third cavity (71) is provided inside the clamping block (70), two groups of movable plates (73) are slidably connected in the third cavity (71), an air bag (72) is provided between the opposite side walls of the two groups of movable plates (73), the two groups of movable plates (73) are provided with a second plug rod (75) on the side walls away from each other, the outer walls of the two groups of the second plug rods (75) are sleeved with a spring (74), one end of the two groups of the second plug rods (75) respectively penetrates the left and right side walls of the third cavity (71) and matches the second plug hole (12), and the front side walls of the two groups of movable plates (73) are provided with a pull block (77).

7. The electrically excited double-salient-pole motor with a composite stator according to claim 6, characterized in that: The front side wall of the clamping block (70) is provided with a sliding groove (76), and the two groups of pulling blocks (77) are slidably connected in the sliding groove (76).

8. The electrically excited double-salient-pole motor with a composite stator according to claim 1, characterized in that: A sealing ring (8) is provided on the left side wall of the motor rear cover (3), and the sealing ring (8) matches the motor housing (1).

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