CN217769640U

CN217769640U - Permanent magnet steel element for brushless motor

Info

Publication number: CN217769640U
Application number: CN202221459921.0U
Authority: CN
Inventors: 沈郎挺; 沈立
Original assignee: Hangzhou Yonggu Magnetic Components Co ltd
Current assignee: Hangzhou Yonggu Magnetic Components Co ltd
Priority date: 2022-06-09
Filing date: 2022-06-09
Publication date: 2022-11-08
Anticipated expiration: 2032-06-09

Abstract

The utility model relates to a motor rotor shaft magnet steel technical field, the utility model provides a be used for brushless motor permanent magnetism magnet steel component, it connects the magnet steel through the mode of joint, fix the magnet steel through the extruded mode, improve work efficiency, improve the convenience of use, including magnet steel body and rotor shaft, the through-hole that runs through from top to bottom is seted up on the rotor shaft, and sliding connection has a plurality of slides in the top of rotor shaft and the equal fixedly connected with baffle through-hole in bottom, the bottom of slide is connected with a plurality of first fixture blocks, the mounting groove has been seted up to the bottom of first fixture block, sliding connection has the slider in the mounting groove, the top of slider is connected with the spring, the bottom of slider is connected with the second fixture block through the slide bar, and the sliding connection has the spacing ring on the slide bar, spacing ring and mounting groove fixed connection, the magnet steel body is provided with a plurality ofly, and a plurality of connecting plates of fixedly connected with on the magnet steel body, the other end of connecting plate runs through the inside that the rotor shaft extends to the through-hole.

Description

Permanent magnet steel element for brushless motor

Technical Field

The utility model relates to a motor rotor axle magnet steel technical field, it is specific, relate to one kind and be used for brushless motor permanent magnetism magnet steel component.

Background

The brushless direct current motor consists of a motor main body and a driver, wherein a rotor in the driver is a main material for driving the motor, and rotor magnetic steel in the motor is rare earth material with strong magnetism installed on the rotor. Install the coil on the stator, the circular telegram produces rotatory geomagnetic field, and the magnetic field interact power that this magnetic field and rotor magnet steel produced to promote the rotor and rotate, current magnet steel mounting means passes through glue and fixes to the rotor shaft on the surface, and the operation precision of motor is easily influenced to the deviation of pasting the process a little.

Through retrieval, china 2017, 9, 19 discloses a rotor shaft magnetic steel mounting device with patent publication number CN206506421U, which is roughly described as comprising: a magnet steel mount table for fix a position and install the magnet steel rotor shaft, the magnet steel mount table includes: the limiting shaft sleeve is sleeved on the part, to be mounted, of the rotor shaft, a plurality of limiting grooves are formed in the limiting shaft sleeve, and the positions of the limiting grooves correspond to the positions, to be mounted, of the rotor shaft, of the magnetic steel.

When the technical scheme is used, after the steel is completely pasted on the rotor shaft, the turntable is rotated by a certain angle, and the magnet is automatically aligned to the magnetic steel, so that the magnetism of the magnet facing one side of the magnetic steel is the same as that of the outer arc side of the magnetic steel. At this moment, magnet and the magnet steel that no longer pastes with rotor shaft surface attract each other, but produce a power of repelling each other with the magnet steel for magnet steel and rotor shaft surface compress tightly, but install comparatively loaded down with trivial details at the device, and need carry out single installation to the magnet steel, and work efficiency is lower, and the convenience of use is lower.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a be used for brushless motor permanent magnetism magnet steel component to the prior art that proposes in the solution background art is comparatively loaded down with trivial details at the device installation, and need carry out single installation, the lower problem of work efficiency to the magnet steel.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a be used for brushless motor permanent magnetism magnet steel component, includes magnet steel body and rotor shaft, the through-hole that runs through from top to bottom is seted up on the rotor shaft, and the top of rotor shaft and the equal fixedly connected with baffle through-hole sliding connection in bottom have a plurality of slides, and the bottom of slide is connected with a plurality of first fixture blocks, and the mounting groove has been seted up to the bottom of first fixture block, and sliding connection has the slider in the mounting groove, and the top of slider is connected with the spring, and the bottom of slider has the second fixture block through sliding rod connection, and sliding sleeve is equipped with the spacing ring on the slide bar, spacing ring and mounting groove fixed connection, magnet steel body is provided with a plurality ofly, and the last a plurality of connecting plates of fixedly connected with of magnet steel body, and the other end of connecting plate runs through the inside that the rotor shaft extends to the through-hole, and set up the draw-in groove that runs through from top to bottom on the connecting plate, the top and bottom of rotor shaft are fixedly connected with first rotor rod and second rotor rod respectively, set up the regulation hole that runs through from top to bottom of first rotor rod, and the regulation hole internal rotation is connected with the regulating block, and the bottom of screw rod runs through the baffle rotation connection of a plurality of slide and below.

Preferably, the top end of the sliding plate is provided with a plurality of limiting blocks, and the limiting blocks are fixedly connected with the side walls of the through holes.

Furthermore, the cross section of the through hole in the top view is polygonal.

Still further, the first fixture block and the second fixture block are both provided with chamfers.

On the basis of the scheme, the top end of the adjusting block is provided with an adjusting groove.

(III) advantageous effects

Compared with the prior art, the utility model provides a be used for brushless motor permanent magnetism magnet steel component possesses following beneficial effect:

this be used for brushless motor permanent magnetism magnet steel component, through setting up the second fixture block, so that extend the connecting plate to the inside of through-hole through magnet steel body, make the connecting plate extrude the second fixture block, so that the spring atress compression, when the draw-in groove is located the below of second fixture block, elasticity through the spring is to the second fixture block application of force, so that the inside that the second fixture block got into the draw-in groove carries out the joint to magnet steel body, simultaneously through setting up first fixture block, so that the screw rod rotates and drives the slide and remove, make the slide drive first fixture block and remove to the inside of draw-in groove, so that first fixture block and draw-in groove cooperation are further fixed magnet steel body, improve firm in connection nature, the device is convenient for carry out fixed connection to a plurality of magnet steel bodies simultaneously, and the work efficiency is improved, and the convenience is used.

Drawings

FIG. 1 is a front view of the cross-sectional structure of the present invention;

FIG. 2 is a schematic view of a portion A of the present invention shown in FIG. 1;

fig. 3 is a schematic view of a top-view cross-sectional structure of the rotor shaft of the present invention;

fig. 4 is a front view of the present invention.

In the figure: 1. a magnetic steel body; 2. a rotor shaft; 3. a baffle plate; 4. a slide plate; 5. a first clamping block; 6. a slider; 7. a spring; 8. a slide bar; 9. a second fixture block; 10. a limiting ring; 11. a connecting plate; 12. a card slot; 13. a second rotor bar; 14. a first rotor shaft; 15. an adjusting block; 16. a screw; 17. a limiting block; 18. and (4) adjusting the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-4, a permanent magnet magnetic steel component for a brushless motor, includes a magnetic steel body 1 and a rotor shaft 2, the rotor shaft 2 is provided with a through hole penetrating up and down, the top end and the bottom end of the rotor shaft 2 are both fixedly connected with a plurality of sliding plates 4 in the through hole of a baffle 3, the bottom end of the sliding plate 4 is connected with a plurality of first clamping blocks 5, the bottom end of the first clamping block 5 is provided with a mounting groove, the mounting groove is slidably connected with a sliding block 6, the top end of the sliding block 6 is connected with a spring 7, the bottom end of the sliding block 6 is connected with a second clamping block 9 through a sliding rod 8, a sliding sleeve on the sliding rod 8 is provided with a limiting ring 10, the limiting ring 10 is fixedly connected with the mounting groove, the sliding rod 8 is limited by the limiting ring 10, the sliding rod 8 is prevented from being separated from the mounting groove, the magnetic steel body 1 is provided with a plurality of connecting plates 11, the other ends of the connecting plates 11 penetrate through the rotor shaft 2 and extend to the inside of the through hole, and the connecting plate 11 is provided with a vertically through slot 12, the connecting plate 11 is extended to the inside of the through hole through the magnetic steel body 1, so that the connecting plate 11 extrudes the second fixture block 9, so that the spring 7 is compressed under force, when the slot 12 is positioned below the second fixture block 9, the second fixture block 9 is applied with force through the elastic force of the spring 7, so that the second fixture block 9 enters the inside of the slot 12 to clamp the magnetic steel body 1, the top end and the bottom end of the rotor shaft 2 are respectively fixedly connected with a first rotor rod 14 and a second rotor rod 13, the first rotor rod 14 is provided with a vertically through adjusting hole, the adjusting hole is rotatably connected with an adjusting block 15, the bottom end of the adjusting block 15 is connected with a screw rod 16 through the rotating rod through a baffle 3, the bottom end of the screw rod 16 is rotatably connected with the baffle 3 below through a plurality of sliding plates 4, the screw rod 16 is driven to rotate by the adjusting block 15, the screw 16 drives the plurality of sliding plates 4 to move, so that the sliding plates 4 drive the first fixture block 5 to move to the inside of the clamping groove 12, and the first fixture block 5 is further matched with the clamping groove 12 to fix the magnetic steel body 1.

It should also be noted that, the top of slide 4 is provided with a plurality of stopper 17, the lateral wall fixed connection of stopper 17 and through-hole, it is spacing to slide 4 through stopper 17, the section of overlooking of through-hole is the polygon, prevent that slide 4 from rotating in the inside of through-hole, all be provided with the chamfer on first fixture block 5 and the second fixture block 9, through setting up the chamfer, so that first fixture block 5 and second fixture block 9 insert the inside of draw-in groove 12, adjustment tank 18 has been seted up on the top of regulating block 15, adjustment tank 18 is six arris grooves, so that it is fast to rotate the regulation through six arris spanners.

To sum up, this a theory of operation and working process for brushless motor permanent magnet steel component do, when using, at first extend a plurality of magnet steel body 1 with connecting plate 11 to the inside of through-hole, make connecting plate 11 extrude second fixture block 9, so that spring 7 atress compression, when draw-in groove 12 is located the below of second fixture block 9, the elasticity through spring 7 is to second fixture block 9 application of force, so that second fixture block 9 gets into the inside of draw-in groove 12 and carries out the joint to magnet steel body 1, then drive screw rod 16 through regulating block 15 and rotate, so that screw rod 16 rotates and drives slide 4 and remove, make slide 4 drive first fixture block 5 and remove to the inside of draw-in groove 12, so that first fixture block 5 further fixes magnet steel body 1 with draw-in groove 12 cooperation.

The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. The utility model provides a be used for brushless motor permanent magnetism magnet steel component, includes magnet steel body (1) and rotor shaft (2), its characterized in that: the rotor comprises a rotor shaft (2), a plurality of through holes which penetrate through the rotor shaft from top to bottom are formed in the rotor shaft (2), the top end and the bottom end of the rotor shaft (2) are fixedly connected with a baffle (3) in a through hole in a sliding manner and are connected with a plurality of sliding plates (4), the bottom end of each sliding plate (4) is connected with a plurality of first clamping blocks (5), the bottom end of each first clamping block (5) is provided with a mounting groove, each mounting groove is internally connected with a sliding block (6) in a sliding manner, the top end of each sliding block (6) is connected with a spring (7), the bottom end of each sliding block (6) is connected with a second clamping block (9) through a sliding rod (8), a limiting ring (10) is sleeved on each sliding rod (8), each limiting ring (10) is fixedly connected with the mounting groove, a plurality of magnetic steel bodies (1) are arranged, and a plurality of connecting plates (11) of fixedly connected with on magnet steel body (1), the other end of connecting plate (11) runs through rotor shaft (2) and extends to the inside of through-hole, and sets up draw-in groove (12) that run through from top to bottom on connecting plate (11), the top and the bottom of rotor shaft (2) are fixedly connected with first rotor pole (14) and second rotor pole (13) respectively, set up the regulation hole that runs through from top to bottom on first rotor pole (14), and the regulation downthehole rotation is connected with regulating block (15), and the bottom of regulating block (15) runs through baffle (3) through the bull stick and is connected with screw rod (16), and the bottom of screw rod (16) runs through a plurality of slides (4) and baffle (3) of below and changes And (4) dynamic connection.

2. A permanent magnet steel component for a brushless electric machine according to claim 1, wherein: the top of slide (4) is provided with a plurality of stopper (17), stopper (17) and the lateral wall fixed connection of through-hole.

3. A permanent magnet steel component for a brushless electric machine according to claim 2, wherein: the overlook section of the through hole is a polygon.

4. A permanent magnet steel component for a brushless electric machine according to claim 3, wherein: and chamfers are arranged on the first clamping block (5) and the second clamping block (9).

5. A permanent magnet steel component for a brushless electric machine according to claim 4, wherein: the top end of the adjusting block (15) is provided with an adjusting groove (18).