CN215646435U - Brushless motor of adjustable rotor core length - Google Patents

Abstract

The utility model discloses a brushless motor capable of adjusting the length of a rotor core, which comprises an installation box, wherein the bottom end of the installation box is fixedly connected with an electric telescopic column, the top end of the electric telescopic column is fixedly connected with a base, two sides of the base are connected to the outer wall of a supporting column in a sliding manner, the bottom end of the supporting column is fixedly connected with the installation box, two sides of the base are fixedly connected with first convex blocks, one side of each first convex block is connected with a second convex block in a sliding manner, the bottom end of each second convex block is connected with the installation box in a sliding manner, the upper end of each second convex block is fixedly connected with a first toothed plate, the upper end of each first toothed plate is connected with a gear in a meshing manner, the upper end of each gear is connected with a second toothed plate in a meshing manner, the upper end of the base is provided with a motor box, and an adjusting mechanism is arranged in the motor box. The motor box clamping device can clamp and fix motor boxes with different specifications, reduces the installation difficulty of the motor boxes, and reduces the use cost.

Description

Brushless motor of adjustable rotor core length

Technical Field

The utility model relates to the technical field of brushless motors, in particular to a brushless motor with an adjustable rotor core length.

Background

The brushless direct current motor is composed of a motor main body and a driver, and is a typical electromechanical integration product. Because the brushless DC motor is operated in a self-control mode, a starting winding is not additionally arranged on a rotor like a synchronous motor which is started under the condition of heavy load under the condition of frequency conversion and speed regulation, and oscillation and step-out can not be generated when the load suddenly changes. The permanent magnet of the brushless DC motor with medium and small capacity is mostly made of rare earth neodymium iron boron (Nd-Fe-B) material with high magnetic energy level. Therefore, the volume of the rare earth permanent magnet brushless motor is reduced by one machine seat number compared with that of a same-capacity three-phase asynchronous motor.

However, in the work of installing the brushless motor, because of the lack of a fixing seat suitable for the brushless motor with a specific size, the installation of the brushless motor is difficult, and further the fastness strength of workers is increased, and the instable brushless motor is easy to cause the shortening of the service life due to vibration, so that the brushless motor for the efficient energy-saving type wiper is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a brushless motor with an adjustable rotor core length to solve the above-mentioned problems of the prior art.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a brushless motor of adjustable rotor core length, includes the install bin, the bottom fixedly connected with electric telescopic column of install bin, the top fixedly connected with base of electric telescopic column, the both sides sliding connection of base is on the outer wall of support column, the bottom and the install bin fixed connection of support column, the first lug of two symmetric distributions of both sides fixedly connected with of base, one side sliding connection of first lug has the second lug, the bottom and the install bin sliding connection of second lug, the first pinion rack of upper end fixedly connected with of second lug, the upper end meshing of first pinion rack is connected with the gear, the upper end of base is equipped with the motor case, the inside adjustment mechanism that is equipped with of motor case.

In a preferred embodiment: the adjusting mechanism comprises a rotor connected with the motor box in a rotating mode, a rotor core is fixedly connected to the middle position of the outer portion of the rotor, rotor sheets are arranged on two sides of the rotor core and are connected with the outer wall of the rotor in a sliding mode, a clamping groove is fixedly connected to the inner wall of the rotor, and a first clamping plate is connected to the inner wall of the upper end and the inner wall of the lower end of the clamping groove in a sliding mode.

In a preferred embodiment: fixedly connected with first spring on the inner wall of first cardboard, one side fixedly connected with second cardboard of first spring, first spring and second cardboard all with first cardboard sliding connection, two fixedly connected with second spring between the first cardboard has increased the fixed action to the rotor piece through the setting of first spring and second spring.

In a preferred embodiment: the meshing of the upper end of gear is connected with the second pinion rack, one side fixedly connected with of second pinion rack presss from both sides the post, one side fixedly connected with splint of pressing from both sides the post, the both ends of first pinion rack and second pinion rack all with install bin sliding connection, have increased the fixed action to the motor case through setting up of splint.

In a preferred embodiment: one side sliding connection of splint has the buffer board, in the splint was located to one side of buffer board, fixedly connected with third spring between one side inner wall of splint and the buffer board, one side of buffer board is equipped with the buffering cotton, through the buffer board with cushion cotton setting, has increased the guard action to the motor case.

In a preferred embodiment: sliding connection has the fourth spring on the outer wall of support column, the both ends of fourth spring respectively with base and install bin fixed connection, through the effect of fourth spring, further increase the cushioning effect to the motor case during operation.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, through the arrangement of the electric telescopic column, the base, the support column, the first lug, the second lug, the first toothed plate, the gear, the clamping column and the clamping plate, motor boxes with different specifications can be clamped and fixed, the mounting difficulty of the motor boxes is reduced, the use cost is reduced, and through the arrangement of the buffer plate and the third spring, the protection effect when the motor boxes are clamped is increased, the shock absorption effect can be realized when the motor boxes are used, and the service life of the motor boxes is prolonged.

2. According to the utility model, through the arrangement of the rotor, the fixed rotor core and the rotor sheets, the number of the rotor sheets can be increased so as to adjust the rotor core, thereby increasing the torque of the motor box, and through the arrangement of the first clamping plate, the second clamping plate, the first spring and the second spring, the fixing effect on the rotor sheets is increased.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the motor casing of the present invention;

FIG. 3 is a schematic structural diagram of the internal structure of the rotor and rotor sheet and the slot of the present invention;

FIG. 4 is a schematic view of the external structure of the mounting box of the present invention;

in the figure: 1. installing a box; 2. an electric telescopic column; 3. a base; 4. a support pillar; 5. a first bump; 6. a second bump; 7. a first toothed plate; 8. a gear; 9. a motor case; 10. a rotor; 11. fixing the rotor core; 12. a rotor sheet; 13. a first spring; 14. a second clamping plate; 15. a second toothed plate; 16. clamping the column; 17. a splint; 18. a buffer plate; 19. a third spring; 20. a fourth spring; 21. a first clamping plate; 22. a clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: the utility model provides a brushless motor of adjustable rotor core length, includes install bin 1, the electronic flexible post 2 of bottom fixedly connected with of install bin 1, the top fixedly connected with base 3 of electronic flexible post 2, the both sides sliding connection of base 3 is on the outer wall of support column 4, the bottom and the install bin 1 fixed connection of support column 4, the first lug 5 of two symmetric distributions of both sides fixedly connected with of base 3, one side sliding connection of first lug 5 has second lug 6, the bottom and the install bin 1 sliding connection of second lug 6, the first pinion rack 7 of upper end fixedly connected with of second lug 6, the upper end meshing of first pinion rack 7 is connected with gear 8, the upper end of base 3 is equipped with motor case 9, the inside adjustment mechanism that is equipped with of motor case 9.

Further, adjustment mechanism includes the rotor 10 of being connected with motor case 9 rotation, rotor 10 outside intermediate position fixedly connected with fixed rotor core 11, the both sides of fixed rotor core 11 are equipped with rotor piece 12, rotor piece 12 and rotor 10 outer wall sliding connection, fixedly connected with draw-in groove 22 on the inner wall of rotor 10, equal sliding connection has first cardboard 21 on the upper and lower end inner wall of draw-in groove 22.

Further, the inner wall of the first clamping plate 21 is fixedly connected with a first spring 13, one side of the first spring 13 is fixedly connected with a second clamping plate 14, the first spring 13 and the second clamping plate 14 are both connected with the first clamping plate 21 in a sliding mode, a second spring is fixedly connected between the two first clamping plates 21, the second clamping plate is pressed into the first clamping plate, then the first clamping plate is pressed into the clamping groove, and therefore the rotor sheet is convenient to install.

Further, the meshing of the upper end of gear 8 is connected with second pinion rack 15, one side fixedly connected with double-layered post 16 of second pinion rack 15, one side fixedly connected with splint 17 of double-layered post 16, the both ends of first pinion rack 7 and second pinion rack 15 all with installing box 1 sliding connection, the relative movement of second pinion rack drives the double-layered post removal, and then drives splint and carry out the centre gripping to the motor case.

Further, one side sliding connection of splint 17 has buffer board 18, in splint 17 was located to one side of buffer board 18, fixedly connected with third spring 19 between one side inner wall of splint 17 and buffer board 18, one side of buffer board 18 is equipped with the buffering cotton, is locking splint and to the centre gripping of motor case, drives the buffer board and slides towards splint inside, and then drives the compression of third spring, further increase the buffering effect to the motor case.

Furthermore, sliding connection has fourth spring 20 on the outer wall of support column 4, fourth spring 20's both ends respectively with base 3 and install bin 1 fixed connection, along with the base moves down, drive the compression of fourth spring, and then play the effect of buffering.

The working principle of the utility model is as follows: during installation, the second clamping plate 14 slides to the inside of the first clamping plate 21, then the two first clamping plates 21 are pressed downwards into the clamping groove 22, then the fixed rotor core 11 is fixedly installed on the rotor 10, then the rotor sheets 12 are installed on the two sides of the fixed rotor core 11 in a sliding manner along the groove on the rotor 10 from the two sides of the rotor 10, after the rotor sheets 12 are installed, the first clamping plates 21 are loosened, the first clamping plates 21 are popped out of the clamping groove 22 under the action of the second spring, then the second clamping plates 14 are popped out of the first clamping plates 21 under the action of the first spring 13, then the rotor sheets 12 on the two sides of the fixed rotor core 11 are fixedly clamped, so that the length of the rotor core body is adjusted, the rotor 10 is fixedly installed in the motor box 9 after the adjustment is completed, when the motor box is used, the box door at the front end of the installation box 1 is opened, then the motor box 9 is placed on the base 3 in the installation box 1, starting electric telescopic column 2 at this moment, electric telescopic column 2 drives base 3 downstream, base 3 downstream drives two first lugs 5 and slides downwards along support column 4, and then drive two second lugs 6 relative movement, the removal of second lug 6 drives first pinion rack 7 relative movement, the removal of first pinion rack 7 drives the gear 8 rotation that the meshing is connected, and then drive two second pinion racks 15 and remove in opposite directions along the inner wall of the front and back end box of install bin 1, the removal of two second pinion racks 15 drives two splint 17 and begins to remove in opposite directions through pressing from both sides post 16, and then accomplish installation and fixed work to motor case 9.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (3)

1. A brushless motor of adjustable rotor core length, includes install bin (1), its characterized in that: the bottom end of the installation box (1) is fixedly connected with an electric telescopic column (2), the top end of the electric telescopic column (2) is fixedly connected with a base (3), two sides of the base (3) are connected to the outer wall of a supporting column (4) in a sliding manner, the bottom end of the supporting column (4) is fixedly connected with the installation box (1), two first convex blocks (5) which are symmetrically distributed are fixedly connected to two sides of the base (3), one side of each first convex block (5) is connected with a second convex block (6) in a sliding manner, the bottom end of each second convex block (6) is connected with the installation box (1) in a sliding manner, the upper end of each second convex block (6) is fixedly connected with a first toothed plate (7), the upper end of each first toothed plate (7) is connected with a gear (8) in a meshing manner, the upper end of each gear (8) is connected with a second toothed plate (15), one side of each second toothed plate (15) is fixedly connected with a clamping column (16), one side of each clamping column (16) is fixedly connected with a clamping plate (17), two ends of the first toothed plate (7) and the second toothed plate (15) are both connected with the installation box (1) in a sliding manner, the upper end of the base (3) is provided with a motor box (9), an adjusting mechanism is arranged inside the motor box (9), the adjusting mechanism comprises a rotor (10) rotatably connected with the motor box (9), a fixed rotor core (11) is fixedly connected to the middle position of the outer portion of the rotor (10), rotor sheets (12) are arranged on two sides of the fixed rotor core (11), the rotor sheets (12) are slidably connected with the outer wall of the rotor (10), a clamping groove (22) is fixedly connected to the inner wall of the rotor (10), a first clamping plate (21) is slidably connected to the inner wall of the upper end and the lower end of the clamping groove (22), and a first spring (13) is fixedly connected to the inner wall of the first clamping plate (21), one side of the first spring (13) is fixedly connected with a second clamping plate (14), the first spring (13) and the second clamping plate (14) are both in sliding connection with the first clamping plates (21), and a second spring is fixedly connected between the two first clamping plates (21).

2. A brushless motor having an adjustable rotor core length as defined in claim 1, wherein: one side sliding connection of splint (17) has buffer board (18), in splint (17) were located to one side of buffer board (18), fixedly connected with third spring (19) between one side inner wall of splint (17) and buffer board (18), one side of buffer board (18) is equipped with the buffering cotton.

3. A brushless motor having an adjustable rotor core length as defined in claim 1, wherein: sliding connection has fourth spring (20) on the outer wall of support column (4), the both ends of fourth spring (20) respectively with base (3) and install bin (1) fixed connection.

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