CN208623524U - Novel stepper motor anti-falling rotor - Google Patents

Abstract

The utility model discloses novel stepper motor anti-falling rotors, including shaft and rotor core, the shaft, which runs through, is connected to rotor core, described shaft one end is welded with block, the block sidewall thread is connected with bolt corresponding with rotor core, the rotor core side is equipped with threaded hole corresponding with bolt, the shaft other end is connected with the snap ring positioned at rotor core side wall, the utility model limits rotor core for cooperating by increasing block in shaft, block side is equipped with bolt simultaneously, for cooperating the threaded hole on rotor core to carry out fixed rotor iron core, rotor core is fixed on block side, it can prevent rotor core from sliding, so that rotor core is fixed in shaft, the snap ring of jackscrew is installed to cooperate block to block rotor core, prevent rotor core from sliding in shaft, it turns Jackscrew pushes ahead rotor core, guarantees that rotor core can be completely attached to block, prevents rotor core from loosening.

Description

Novel stepper motor anti-falling rotor

Technical field

The utility model relates to rotor technology fields, specially novel stepper motor anti-falling rotor.

Background technique

Rotor is divided into internal rotor rotating manner and two kinds of outer rotor rotating manner.Internal rotor rotating manner is in motor Between core be rotary body, output torque or income energy.Outer rotor rotating manner is different i.e. using motor ectosome as rotary body Mode facilitate the applications of various occasions.

The rotor of brshless DC motor is embedded in iron core surface or insertion core interior by the permanent magnet of certain number of pole-pairs It constitutes.Permanent magnet mostly uses the high-coercive forces such as neodymium iron boron, and the rare earth permanent-magnetic material of hypertonic magnetic induction density is made.It exchanges different The rotor windings of step motor are divided to mouse-cage type and two class of winding-type.Mouse-cage type structure is relatively simple, is generally poured people by alloy aluminum It is shorted in rotor core slot and by both ends end ring；Also useful copper bar is embedded in copper end ring of burn-oning again.Wound rotor around Group is identical as stator winding, it goes back available waveforms winding in addition to above-mentioned various winding can be used.Wave waveform winding is commonly applied to large size AC motor rotor winding and dc motor armature winding.

Armature spindle is typically all directly to be docked with target to existing rotor when in use, due to what is fixed using the external world Mode is easy to cause the loosening of armature spindle because of the loosening of extraneous fixation member, be easy to cause rotor when high-speed rotation The shaking of axis, axis and claw iron core cooperate not close, be easy to cause the damage of armature spindle, and then lower rotor uses the longevity Life.

Utility model content

The purpose of this utility model is to provide novel stepper motor anti-falling rotors, increase block in shaft for cooperating Rotor core is limited, rotor core is fixed on block side, rotor core can be prevented to be slidably fitted with jackscrew Snap ring cooperates block to block rotor core, prevents rotor core from loosening, to solve the problems mentioned in the above background technology.

To achieve the above object, the utility model provides the following technical solutions: novel stepper motor anti-falling rotor, including turns Axis and rotor core, for the shaft through rotor core is connected to, described shaft one end is welded with block, the block side wall spiral shell Line is connected with bolt corresponding with rotor core, and the rotor core side is equipped with threaded hole corresponding with bolt, described The shaft other end is connected with the snap ring positioned at rotor core side wall, and the snap ring sidewall thread is connected with jackscrew, the jackscrew end Portion is in contact through snap ring with rotor core, and the rotor core upper end is equipped with rack gear, is wound with magnet exciting coil on the rack gear, Described shaft one end is fixedly connected with slip ring, and the magnet exciting coil end is welded on slip ring side.

Preferably, it is socketed with limited block inside the snap ring, is equipped with groove corresponding with limited block among the shaft.

Preferably, through strut is connected among the snap ring, the strut lower end is fixedly connected on limited block, and described Strut upper end extends to outside snap ring.

Preferably, the strut middle position is socketed with spring, and the spring is located inside snap ring, and the lower spring end It is connected to limited block.

Preferably, the limit number of blocks is at least symmetrically arranged two groups centered on shaft, and the strut and limit Position number of blocks is corresponding.

Preferably, the rack gear end is connected with protective plate, and the protective plate is located on the outside of magnet exciting coil, and the protection Board width is greater than rack gear.

Compared with prior art, the utility model has the beneficial effects that

1, the utility model limits rotor core for cooperating by increasing block in shaft, guarantees rotor iron The precision of core installation, while block side is equipped with bolt, for cooperating the threaded hole on rotor core to carry out fixed rotor iron core, Rotor core is fixed on block side, can prevent rotor core from sliding, so that rotor core is fixed in shaft；

2, the utility model is equipped with the snap ring of jackscrew by increase to cooperate block to block rotor core, prevents rotor Iron core slides in shaft, while turning jackscrew, can push ahead rotor core, guarantees that rotor core can be complete with block Full connected fixes rotor core, prevents rotor core from loosening.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model positive structure schematic；

Fig. 3 is the utility model rotor core structure schematic diagram；

Fig. 4 is the utility model stop block structure schematic diagram；

Fig. 5 is the utility model snap ring schematic diagram of internal structure.

In figure: 1 shaft, 2 rotor cores, 3 blocks, 4 bolts, 5 threaded holes, 6 snap rings, 7 jackscrews, 8 rack gears, 9 excitation wires Circle, 10 slip rings, 11 limited blocks, 12 struts, 13 springs, 14 protective plates.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-5 is please referred to, the utility model provides a kind of technical solution: novel stepper motor anti-falling rotor, including shaft 1 With rotor core 2, for the shaft 1 through rotor core 2 is connected to, described 1 one end of shaft is welded with block 3,3 side of block Wall is threaded with bolt 4 corresponding with rotor core 2, and 2 side of rotor core is equipped with screw thread corresponding with bolt 4 Hole 5, increased block 3 limits rotor core 2 for cooperating in shaft 1, while 3 side of block is equipped with bolt 4, For cooperating the threaded hole 5 on rotor core 2 to carry out fixed rotor iron core 2, rotor core 2 is fixed on 3 side of block, Neng Goufang Only rotor core 2 slides, so that rotor core 2 is fixed in shaft 1,1 other end of shaft is connected with positioned at rotor core 2 The snap ring 6 of side wall, 6 sidewall thread of snap ring are connected with jackscrew 7, and snap ring 6 and 2 phase of rotor core are run through in 7 end of jackscrew Contact, 2 upper end of rotor core are equipped with rack gear 8, are wound with magnet exciting coil 9 on the rack gear 8, described 1 one end of shaft is fixed It is connected with slip ring 10,9 end of magnet exciting coil is welded on 10 side of slip ring, is equipped with the snap ring 6 of jackscrew 7 to cooperate block 3 Rotor core 2 is blocked, prevents rotor core 2 from sliding in shaft 1, jackscrew 7 is turned and pushes ahead rotor core 2, is guaranteed Rotor core 2 can be completely attached to block 3, prevent rotor core 2 from loosening.

Specifically, being socketed with limited block 11 inside the snap ring 6, it is equipped among the shaft 1 corresponding with limited block 11 Groove, through strut 12 is connected among the snap ring 6,12 lower end of strut is fixedly connected on limited block 11, and described 12 upper end of strut extends to outside snap ring 6, and 12 middle position of strut is socketed with spring 13, and the spring 13 is located at snap ring 6 Inside, and 13 lower end of the spring is connected to limited block 11,11 quantity of limited block is at least symmetrically to be set centered on shaft 1 Two groups set, and the limit connected by strut 12 installed inside the snap ring 6 corresponding with 11 quantity of limited block of the strut 12 Block 11 cooperates the space inside snap ring 6, limited block 11 is pressed downward under the action of spring 13, guarantees that limited block 11 blocks always In the groove among shaft 1, prevents snap ring 6 from loosening, snap ring 6 is limited.

Specifically, 8 end of rack gear is connected with protective plate 14, the protective plate 14 is located at 9 outside of magnet exciting coil, and 14 width of protective plate is greater than rack gear 8, and protective plate 14 avoids encouraging for protecting the magnet exciting coil 9 connected on rack gear 8 Magnetic coil 9 is worn.

Working principle: when use by 2 sets of rotor core in shaft 1, in shaft 1 increased block 3 for cooperate to turn Sub- iron core 2 is limited, while 3 side of block is equipped with bolt 4, is fixed and is turned for cooperating the threaded hole 5 on rotor core 2 Rotor core 2 is fixed on 3 side of block by sub- iron core 2, can prevent rotor core 2 from sliding, so that rotor core 2 is fixed on In shaft 1, snap ring 6 is then connected to 2 side of rotor core, the snap ring 6 of jackscrew 7 is installed to cooperate block 3 by rotor iron Core 2 blocks, and prevents rotor core 2 from sliding in shaft 1, turns jackscrew 7 and pushes ahead rotor core 2, guarantees rotor core 2 can completely attach to block 3, prevent rotor core 2 from loosening.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (6)

1. novel stepper motor anti-falling rotor, including shaft (1) and rotor core (2), it is characterised in that: the shaft (1) is passed through Wear and be connected to rotor core (2), described shaft (1) one end is welded with block (3), block (3) sidewall thread be connected with The corresponding bolt (4) of rotor core (2), rotor core (2) side are equipped with threaded hole (5) corresponding with bolt (4), Shaft (1) other end is connected with the snap ring (6) positioned at rotor core (2) side wall, and snap ring (6) sidewall thread is connected with Jackscrew (7), jackscrew (7) end are in contact through snap ring (6) with rotor core (2), and rotor core (2) upper end is equipped with Rack gear (8) is wound with magnet exciting coil (9) on the rack gear (8), and described shaft (1) one end is fixedly connected with slip ring (10), described Magnet exciting coil (9) end is welded on slip ring (10) side.

2. novel stepper motor anti-falling rotor according to claim 1, it is characterised in that: socket inside the snap ring (6) Have limited block (11), groove corresponding with limited block (11) is equipped among the shaft (1).

3. novel stepper motor anti-falling rotor according to claim 2, it is characterised in that: run through among the snap ring (6) It is connected with strut (12), strut (12) lower end is fixedly connected on limited block (11), and the strut (12) upper end extends to Snap ring (6) is external.

4. novel stepper motor anti-falling rotor according to claim 3, it is characterised in that: strut (12) middle position It is socketed with spring (13), it is internal that the spring (13) is located at snap ring (6), and the spring (13) lower end is connected to limited block (11)。

5. novel stepper motor anti-falling rotor according to claim 3, it is characterised in that: limited block (11) quantity is extremely Few is symmetrically arranged two groups centered on shaft (1), and the strut (12) is corresponding with limited block (11) quantity.

6. novel stepper motor anti-falling rotor according to claim 1, it is characterised in that: rack gear (8) the end connection Have protective plate (14), the protective plate (14) is located on the outside of magnet exciting coil (9), and the protective plate (14) width is greater than rack gear (8)。