A permanent magnet motor structure

Abstract

The present invention provides a permanent magnet motor structure, which includes a motor housing. At the lower position of the outer surface of the motor housing, two obliquely arranged connecting plates are fixedly connected. One end of the connecting plate away from the motor housing is fixedly connected with a horizontally arranged bottom plate. On the upper surface of the bottom plate, a first clamping plate is fixedly connected to one side close to the connecting plate, and a second clamping plate parallel to the first clamping plate is fixedly connected to the other side away from the connecting plate. A plurality of sliding blocks are arranged between the first clamping plate and the second clamping plate. A vertically arranged first threaded hole is formed on the upper surface of the sliding block, and a support screw is threadedly connected in the first threaded hole. A guide groove arranged along the length direction of the second clamping plate is formed on the surface of the second clamping plate facing away from the first clamping plate. A limiting head is fixedly connected to the surface of the sliding block facing the second clamping plate. The present invention has the following beneficial effects: It is applicable to the needs of different arc-shaped carriers, expands the universality, does not need to produce support structures of different specifications, and reduces the production cost.

Description

Technical Field

[0001] The present invention relates to a permanent magnet motor structure, belonging to the field of motors. Background Art

[0002] A permanent magnet motor is a type of motor. A permanent magnet motor is a DC motor in which the stator is a permanent magnet and only the rotor is a coil. After the permanent magnet motor is manufactured, it can maintain its magnetic field without external energy. Permanent magnet motors are generally fixed in position by bolts. At present, the support structure for inserting bolts on the permanent magnet motor is fixed and can only be installed on a flat carrier. For a curved surface carrier, a support structure specifically matched with the surface of the curved surface carrier is required. One type of curved surface carrier requires a corresponding support structure, which not only has insufficient versatility but also requires the manufacture of support structures of different specifications, resulting in high production costs. Summary of the Invention

[0003] Aiming at the deficiencies existing in the prior art, the purpose of the present invention is to provide a permanent magnet motor structure to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention is realized through the following technical solutions: A permanent magnet motor structure includes a motor housing. Two inclined connecting plates are fixedly connected to the lower position of the outer surface of the motor housing. One end of the connecting plate away from the motor housing is fixedly connected to a horizontally arranged bottom plate. A first clamping plate is fixedly connected to one side of the upper surface of the bottom plate close to the connecting plate. A second clamping plate parallel to the first clamping plate is fixedly connected to the other side of the upper surface of the bottom plate away from the connecting plate. A plurality of sliding blocks are arranged between the first clamping plate and the second clamping plate. A vertically arranged first threaded hole is opened on the upper surface of the sliding block. A support screw is threadedly connected in the first threaded hole. Two wrench-matching notches are symmetrically opened on the outer surface of the upper end of the support screw. A strip-shaped opening matching the first threaded hole is opened on the upper surface of the bottom plate. The strip-shaped opening is arranged along the length direction of the bottom plate. The lower end of the support screw penetrates through the strip-shaped opening. A guiding groove arranged along the length direction of the second clamping plate is opened on the surface of the second clamping plate facing away from the first clamping plate. A limiting head is fixedly connected to the surface of the sliding block facing the second clamping plate. A circular hole arranged along the length direction of the guiding groove is opened on one side surface of the limiting head. A threaded rod is inserted into the circular hole. Both ends of the threaded rod are fixedly connected to the second clamping plate. Nuts are arranged on both sides of the limiting head along the length direction of the threaded rod. The nuts are threadedly connected to the threaded rod. A loosening prevention member is installed at the lower end of the support screw.

[0005] Furthermore, the limiting head is of a rectangular body structure. The limiting head and the sliding block are of an integrally formed structure. Both the limiting head and the sliding block are components produced by a kind of cast iron.

[0006] Further, the anti-loosening member includes a spring. A blind hole is provided in the middle position of the lower surface of the support screw rod. The blind hole is arranged along the length direction of the support screw rod. A spring is provided in the blind hole. The lower end of the spring extends to the outside of the blind hole. A barrel cap is sleeved on the support screw rod, and the lower end of the barrel cap is closed.

[0007] Further, a fitting plate is provided on the lower surface of the barrel cap. One end of the fitting plate is hingedly connected to the barrel cap. On one side of the outer surface of the lower end of the barrel cap away from the hinged part with the fitting plate, a fixing plate is fixedly connected. A second threaded hole is provided on the upper surface of the fixing plate. A limit screw for restricting the position of one end of the fitting plate away from its hinged part with the barrel cap is threadedly connected in the second threaded hole.

[0008] Further, support plates are fixedly connected to both ends of the threaded rod. One end of the support plate is in contact with the second clamping plate. Two threaded holes are provided on the surface of the support plate facing the second clamping plate. Countersunk holes aligned with the two threaded holes are provided on the surface of the second clamping plate facing away from the support plate. Connecting screws are provided in the countersunk holes. The connecting screws pass through the countersunk holes and are threadedly connected in the threaded holes.

[0009] Further, a limit hole is provided at the position where the support plate mounts the threaded rod. The end of the threaded rod is inserted into the limit hole and fixed in the limit hole.

[0010] Further, the connecting plate and the bottom plate are of an integrally formed structure, the first clamping plate and the bottom plate are of an integrally formed structure, and the second clamping plate and the bottom plate are of an integrally formed structure.

[0011] Advantages of the present invention:

[0012] 1. When installing the motor housing on a flat carrier, remove the sliding block from between the first clamping plate and the second clamping plate, and then pass the bolt for fixing the bottom plate through the strip-shaped opening on the bottom plate and assemble it with the flat carrier. When installing the motor housing on a curved surface carrier, according to the curvature of the surface of the curved surface carrier, adjust the positions of multiple sliding blocks in the first clamping plate and the second clamping plate. At this time, the sliding block drives the limit head to slide in the guiding groove on the second clamping plate, and at the same time, the threaded rod slides relative to the limit head in the round hole. After the position of the sliding block is adjusted, turn the nuts on both sides of the limit head so that both nuts on both sides of the limit head are in close contact with the limit head, completing the fixation of the relative position between the limit head and the threaded rod, that is, the position of the sliding block is fixed, realizing the adjustment of the distance between the support screw rods according to the curvature of the surface of the curved surface carrier, so that two sliding blocks among multiple sliding blocks do not install support screw rods, providing an insertion space for the bolts for fixing the bottom plate.

[0013] 2. After the positions of multiple sliding blocks are adjusted, a support screw rod is threadedly connected to the first threaded hole on the sliding block, and then the multiple support screw rods are rotated, so that the lower ends of the multiple support screw rods are all in contact with the surface of the arc-shaped carrier, thereby increasing the contact range between the bottom plate and the arc-shaped carrier, improving the installation stability of the motor housing, meeting the needs of different arc-shaped carriers, expanding the versatility, eliminating the need to produce support structures of different specifications, and reducing the production cost.

[0014] 3. When the support screw rod is rotated so that the lower end of the support screw rod contacts the surface of the arc-shaped carrier, the barrel cap at the lower end of the support screw rod first contacts the arc-shaped carrier. When the support screw rod is continuously rotated, the barrel cap and the support screw rod act together to squeeze the spring, causing the spring to retract into the blind hole. The barrel cap plays a role in making the spring receive a squeezing force arranged along the length direction of the support screw rod, preventing the spring from deforming laterally. Under the action of the spring's resilience, it prevents the support screw rod from rotating in the first threaded hole due to vibration, and improves the installation stability of the motor housing.

[0015] 4. Adjust the position of the limit screw in the second threaded hole, and then the length of the lower end of the limit screw extending to the lower side of the barrel cap becomes longer or shorter. Then, when the fitting plate is attached to the arc-shaped carrier, due to the blocking action of the limit screw, the angle between the fitting plate and the barrel cap is limited. At this time, the fitting plate plays a role in increasing the contact range between the barrel cap and the surface of the arc-shaped carrier, and improving the balance of the force received by the barrel cap. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects, and advantages of the present invention will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Figure 1 It is a schematic structural diagram of a permanent magnet motor structure of the present invention;

[0018] Figure 2 It is an enlarged view at A in a permanent magnet motor structure of the present invention;

[0019] Figure 3 It is an assembly schematic diagram of a connecting plate and a bottom plate in a permanent magnet motor structure of the present invention;

[0020] Figure 4 It is a three-dimensional view of a second clamping plate in a permanent magnet motor structure of the present invention;

[0021] Figure 5 It is an assembly schematic diagram of a limit head and a sliding block in a permanent magnet motor structure of the present invention;

[0022] Figure 6 It is an assembly schematic diagram of a fitting plate, a barrel cap, a spring, and a support screw rod in a permanent magnet motor structure of the present invention;

[0023] In the figure: 1 - motor housing, 2 - support screw, 3 - bottom plate, 4 - bayonet, 5 - sliding block, 6 - first clamping plate, 7 - strip-shaped opening, 8 - second clamping plate, 9 - support plate, 10 - nut, 11 - limit head, 12 - threaded rod, 13 - guide groove, 14 - round hole, 15 - first threaded hole, 16 - blind hole, 17 - spring, 18 - fitting plate, 19 - fixing plate, 20 - limit screw, 21 - barrel cap, 22 - connecting plate. Detailed implementation manners

[0024] To make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0025] Please refer to Figure 1 , Figure 2 and Figure 3 , the present invention provides a technical solution: a permanent magnet motor structure, including a motor housing 1, two inclined connecting plates 22 are fixedly connected to the lower part of the outer surface of the motor housing 1, one end of the connecting plate 22 far from the motor housing 1 is fixedly connected with a horizontally arranged bottom plate 3, the connecting plate 22 and the bottom plate 3 are of an integrally formed structure, a strip-shaped opening 7 matching with the first threaded hole 15 is opened on the upper surface of the bottom plate 3, the strip-shaped opening 7 is arranged along the length direction of the bottom plate 3, when installing the motor housing 1 on a planar carrier, the sliding block 5 is removed from between the first clamping plate 6 and the second clamping plate 8, and then the bolt for fixing the bottom plate 3 passes through the strip-shaped opening 7 on the bottom plate 3 and is assembled with the planar carrier.

[0026] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5, on one side of the upper surface of the bottom plate 3 close to the connecting plate 22, a first clamping plate 6 is fixedly connected. The first clamping plate 6 and the bottom plate 3 are of an integrally formed structure. On the side of the upper surface of the bottom plate 3 away from the connecting plate 22, a second clamping plate 8 arranged parallel to the first clamping plate 6 is fixedly connected. The second clamping plate 8 and the bottom plate 3 are of an integrally formed structure. A plurality of sliding blocks 5 are arranged between the first clamping plate 6 and the second clamping plate 8. The first clamping plate 6 and the second clamping plate 8 jointly limit the position of the sliding blocks 5. A vertically arranged first threaded hole 15 is opened on the upper surface of the sliding block 5. A support screw 2 is threadedly connected in the first threaded hole 15. On the outer surface of the upper end of the support screw 2, two notches 4 for matching a wrench are symmetrically opened. When the wrench is stuck at the notches 4, it is convenient to turn the support screw 2. The lower end of the support screw 2 penetrates through the strip-shaped opening 7. When installing the motor housing 1 on the arc-shaped carrier, according to the radian of the surface of the arc-shaped carrier, adjust the positions of the plurality of sliding blocks 5 in the first clamping plate 6 and the second clamping plate 8. At this time, the sliding block 5 drives the limiting head 11 to slide in the guiding groove 13 on the second clamping plate 8. At the same time, the threaded rod 12 slides relative to the limiting head 11 in the round hole 14. After the positions of the sliding blocks 5 are adjusted, turn the nuts 10 on both sides of the limiting head 11 so that the nuts 10 on both sides of the limiting head 11 are closely attached to the limiting head 11, completing the fixation of the relative positions of the limiting head 11 and the threaded rod 12, that is, the positions of the sliding blocks 5 are fixed, realizing the adjustment of the spacing of the support screws 2 according to the radian of the surface of the arc-shaped carrier, so that two of the plurality of sliding blocks 5 do not install the support screws 2, providing an insertion space for the bolts fixing the bottom plate 3.

[0027] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , on the side of the second clamping plate 8 facing away from the first clamping plate 6, a guiding groove 13 arranged along the length direction of the second clamping plate 8 is opened. On the side of the sliding block 5 facing the second clamping plate 8, a limiting head 11 is fixedly connected. The limiting head 11 is of a rectangular body structure. The limiting head 11 and the sliding block 5 are of an integrally formed structure. The limiting head 11 and the sliding block 5 are both components produced by a kind of cast iron. A round hole 14 arranged along the length direction of the guiding groove 13 is opened on one side surface of the limiting head 11. A threaded rod 12 is inserted in the round hole 14. Both ends of the threaded rod 12 are fixedly connected to the second clamping plate 8. Nuts 10 are arranged on both sides of the limiting head 11 along the length direction of the threaded rod 12. The nuts 10 are threadedly connected to the threaded rod 12. After the positions of the plurality of sliding blocks 5 are adjusted, the support screw 2 is threadedly connected in the first threaded hole 15 on the sliding block 5, and then the plurality of support screws 2 are turned so that the lower ends of the plurality of support screws 2 are all in contact with the surface of the arc-shaped carrier, thereby increasing the contact range between the bottom plate 3 and the arc-shaped carrier and improving the installation stability of the motor housing 1. On the one hand, it meets the needs of different arc-shaped carriers, expands the versatility, does not need to produce support structures of different specifications, and reduces the production cost.

[0028] Refer toFigure 2 , both ends of the threaded rod 12 are fixedly connected with support plates 9. One end of the support plate 9 is in contact with the second clamping plate 8. Two screw holes are formed on the surface of the support plate 9 facing the second clamping plate 8. Countersunk holes aligned with the two screw holes one by one are formed on the surface of the second clamping plate 8 facing away from the support plate 9. Connecting screws are arranged in the countersunk holes. The connecting screws penetrate through the countersunk holes and are threadedly connected in the screw holes. A limiting hole is formed at the position where the support plate 9 installs the threaded rod 12. The end of the threaded rod 12 is inserted into the limiting hole and fixed in the limiting hole, increasing the contact range between the threaded rod 12 and the support plate 9 and improving the connection stability between the threaded rod 12 and the support plate 9. The support plate 9 and the second clamping plate 8 are connected by connecting screws, facilitating the disassembly and assembly of the support plate 9 and the second clamping plate 8, that is, facilitating the disassembly and assembly of the threaded rod 12 and the second clamping plate 8.

[0029] Refer to Figure 6 , a blind hole 16 is formed in the middle position of the lower surface of the support screw 2. The blind hole 16 is arranged along the length direction of the support screw 2. A spring 17 is arranged in the blind hole 16. The lower end of the spring 17 extends to the outside of the blind hole 16. A barrel cap 21 is sleeved on the support screw 2. The lower end of the barrel cap 21 is closed. A fitting plate 18 is arranged on the lower surface of the barrel cap 21. One end of the fitting plate 18 is hingedly connected with the barrel cap 21. One side of the outer surface of the lower end of the barrel cap 21 away from the hinged part with the fitting plate 18 is fixedly connected with a fixing plate 19. A second threaded hole is formed on the upper surface of the fixing plate 19. A limiting screw 20 for restricting the position of one end of the fitting plate 18 away from the hinged part with the barrel cap 21 is threadedly connected in the second threaded hole. When the support screw 2 is rotated so that the lower end of the support screw 2 contacts the surface of the arc-shaped carrier, the barrel cap 21 at the lower end of the support screw 2 first contacts the arc-shaped carrier. When the support screw 2 is continuously rotated, the barrel cap 21 and the support screw 2 jointly act to compress the spring 17, causing the spring 17 to retract into the blind hole 16. The barrel cap 21 plays a role in making the spring 17 receive a squeezing force arranged along the length direction of the support screw 2, preventing the spring 17 from deforming laterally. Under the action of the resilience of the spring 17, it prevents the support screw 2 from rotating in the first threaded hole 15 due to vibration, improving the installation stability of the motor housing 1. By adjusting the position of the limiting screw 20 in the second threaded hole, the length of the lower end of the limiting screw 20 extending to the lower side of the barrel cap 21 becomes longer or shorter. When the fitting plate 18 is attached to the arc-shaped carrier, the angle between the fitting plate 18 and the barrel cap 21 is restricted by the blocking action of the limiting screw 20. At this time, the fitting plate 18 plays a role in increasing the contact range between the barrel cap 21 and the surface of the arc-shaped carrier, improving the balance of the force received by the barrel cap 21.

[0030] Specific implementation manner: When installing the motor housing 1 on a flat carrier, remove the sliding block 5 from between the first clamping plate 6 and the second clamping plate 8, and then pass the bolts of the fixed base plate 3 through the strip-shaped openings 7 on the base plate 3 and assemble them with the flat carrier. When installing the motor housing 1 on a curved surface carrier, adjust the positions of multiple sliding blocks 5 within the first clamping plate 6 and the second clamping plate 8 according to the curvature of the surface of the curved surface carrier. At this time, the sliding block 5 drives the limiting head 11 to slide within the guiding groove 13 on the second clamping plate 8, and at the same time, the threaded rod 12 slides relative to the limiting head 11 within the circular hole 14. After the positions of the sliding blocks 5 are adjusted, turn the nuts 10 on both sides of the limiting head 11 so that the nuts 10 on both sides of the limiting head 11 are tightly fitted with the limiting head 11, completing the fixation of the relative positions of the limiting head 11 and the threaded rod 12, that is, the positions of the sliding blocks 5 are fixed, realizing the adjustment of the spacing of the support screws 2 according to the curvature of the surface of the curved surface carrier, and not installing the support screws 2 on two of the multiple sliding blocks 5 to provide an insertion space for the bolts of the fixed base plate 3. After the positions of the multiple sliding blocks 5 are adjusted, thread the support screws 2 into the first threaded holes 15 on the sliding blocks 5, and then turn the multiple support screws 2 so that the lower ends of the multiple support screws 2 are all in contact with the surface of the curved surface carrier, thereby increasing the contact range between the base plate 3 and the curved surface carrier and improving the stability of the installation of the motor housing 1. On the one hand, it meets the needs of different curved surface carriers, expands the versatility, eliminates the need to produce support structures of different specifications, and reduces the production cost.

[0031] When turning the support screw 2 so that the lower end of the support screw 2 contacts the surface of the curved surface carrier, the barrel cap 21 at the lower end of the support screw 2 first contacts the curved surface carrier. When continuing to turn the support screw 2, the barrel cap 21 and the support screw 2 act together to squeeze the spring 17, causing the spring 17 to retract into the blind hole 16. The barrel cap 21 plays a role in making the spring 17 receive a squeezing force arranged along the length direction of the support screw 2, preventing the spring 17 from undergoing lateral deformation. Under the action of the resilience of the spring 17, it prevents the support screw 2 from rotating within the first threaded hole 15 due to vibration, improving the stability of the installation of the motor housing 1. Adjust the position of the limit screw 20 within the second threaded hole, and then the length of the lower end of the limit screw 20 extending to the lower side of the barrel cap 21 becomes longer or shorter. When the fitting plate 18 is attached to the curved surface carrier, due to the blocking action of the limit screw 20, the angle between the fitting plate 18 and the barrel cap 21 is restricted. At this time, the fitting plate 18 plays a role in increasing the contact range between the barrel cap 21 and the surface of the curved surface carrier, improving the balance of the force on the barrel cap 21.

[0032] Although this specification is described according to the implementation manners, not every implementation manner only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation manners that can be understood by those skilled in the art.

Claims

1. A permanent magnet motor structure, comprising a motor housing (1), characterized in that: At the lower position of the outer surface of the motor housing (1), two inclined connecting plates (22) are fixedly connected. One end of the connecting plate (22) away from the motor housing (1) is fixedly connected with a horizontally arranged bottom plate (3). On one side of the upper surface of the bottom plate (3) close to the connecting plate (22), a first clamping plate (6) is fixedly connected. On the side of the upper surface of the bottom plate (3) away from the connecting plate (22), a second clamping plate (8) arranged parallel to the first clamping plate (6) is fixedly connected. Between the first clamping plate (6) and the second clamping plate (8), there are a plurality of sliding blocks (5). On the upper surface of the sliding block (5), a vertically arranged first threaded hole (15) is opened. A support screw (2) is threadedly connected in the first threaded hole (15). On the outer surface of the upper end of the support screw (2), two notches (4) for matching a wrench are symmetrically opened. On the upper surface of the bottom plate (3), a strip-shaped opening (7) matching the first threaded hole (15) is opened. The strip-shaped opening (7) is arranged along the length direction of the bottom plate (3). The lower end of the support screw (2) penetrates through the strip-shaped opening (7). On the side of the second clamping plate (8) facing away from the first clamping plate (6), a guiding groove (13) arranged along the length direction of the second clamping plate (8) is opened. On the side of the sliding block (5) facing the second clamping plate (8), a limiting head (11) is fixedly connected. On one side surface of the limiting head (11), a round hole (14) arranged along the length direction of the guiding groove (13) is opened. A threaded rod (12) is inserted in the round hole (14). Both ends of the threaded rod (12) are fixedly connected with the second clamping plate (8). On both sides of the limiting head (11) along the length direction of the threaded rod (12), nuts (10) are arranged. The nuts (10) are threadedly connected on the threaded rod (12). A loosening prevention member is installed at the lower end of the support screw (2).

2. The structure of a permanent magnet motor according to claim 1, characterized in that: The limiting head (11) is of a rectangular body structure. The limiting head (11) and the sliding block (5) are of an integrally formed structure. Both the limiting head (11) and the sliding block (5) are components produced by a kind of cast iron.

3. A permanent magnet motor structure according to claim 1, characterized in that: The loosening prevention member includes a spring (17). In the middle position of the lower surface of the support screw (2), a blind hole (16) is opened. The blind hole (16) is arranged along the length direction of the support screw (2). A spring (17) is arranged in the blind hole (16). The lower end of the spring (17) extends to the outside of the blind hole (16). A barrel cap (21) is sleeved on the support screw (2). The lower end of the barrel cap (21) is closed.

4. A permanent magnet motor structure according to claim 3, characterized in that: On the lower surface of the barrel cap (21), a fitting plate (18) is arranged. One end of the fitting plate (18) is hingedly connected with the barrel cap (21). On the outer surface of the lower end of the barrel cap (21), on the side away from the hinged part with the fitting plate (18), a fixing plate (19) is fixedly connected. On the upper surface of the fixing plate (19), a second threaded hole is opened. A limiting screw (20) for restricting the position of the end of the fitting plate (18) away from its hinged part with the barrel cap (21) is threadedly connected in the second threaded hole.

5. A permanent magnet motor structure according to claim 1, characterized in that: Both ends of the threaded rod (12) are fixedly connected with support plates (9). One end of the support plate (9) is in contact with the second clamping plate (8). Two screw holes are formed on the surface of the support plate (9) facing the second clamping plate (8). Countersunk holes aligned with the two screw holes are formed on the surface of the second clamping plate (8) facing away from the support plate (9). Connecting screws are arranged in the countersunk holes, and the connecting screws penetrate through the countersunk holes and are threadedly connected in the screw holes.

6. A permanent magnet motor structure according to claim 5, characterized in that: A limiting hole is formed at the position where the support plate (9) installs the threaded rod (12). The end of the threaded rod (12) is inserted into the limiting hole and fixed in the limiting hole.

7. A permanent magnet motor structure according to claim 1, characterized in that: The connecting plate (22) and the bottom plate (3) are of an integrally formed structure. The first clamping plate (6) and the bottom plate (3) are of an integrally formed structure. The second clamping plate (8) and the bottom plate (3) are of an integrally formed structure.

Images