CN209860701U - Novel shaft sleeve suitable for reciprocating motion motor and reciprocating motor with same - Google Patents

Abstract

The utility model discloses a novel axle sleeve suitable for reciprocating motion motor and have reciprocating motor of this axle sleeve, including the axle sleeve body, the axle sleeve body is moulded the material by soft and is made, the utility model discloses an axle sleeve adopts soft material of moulding to make, and the pivot is when carrying out axial or circumference reciprocating motion, and this physical stamina of axle sleeve automatically adaptation pivot motion, the motor during operation noise is little, and has certain lubricated effect, and pivot life is longer.

Description

Novel shaft sleeve suitable for reciprocating motion motor and reciprocating motor with same

Technical Field

The utility model relates to the technical field of electric machines, concretely relates to novel axle sleeve and have reciprocating motor of this axle sleeve suitable for reciprocating motion motor.

Background

With the continuous development of society, people pay more and more attention to the quality of life, so that personal health care products and beauty health care products, such as electric toothbrushes, electric face cleaners, electric shavers and other related products are more and more popularized, and the products can not be driven by a reciprocating motion motor. At present, reciprocating motion motors/devices are mainly divided into two types, namely circumferential reciprocating motion and axial reciprocating motion, the two types of reciprocating motion are generally independently present in a certain motor, and a shaft sleeve of a traditional reciprocating motion motor is generally a common metal shaft sleeve which is easy to cause overlarge noise of the motor.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a novel shaft sleeve suitable for a reciprocating motor with less noise and a reciprocating motor with the same.

The technical scheme is as follows:

one of the purposes of the utility model is realized as follows:

the utility model provides a novel axle sleeve suitable for reciprocating motion motor, its key lies in: the shaft sleeve comprises a shaft sleeve body, wherein the shaft sleeve body is made of soft plastic materials. Traditional axle sleeve generally adopts metal material to make, and its hardness is higher, when the motor is reciprocating motion, the pivot often easily and the axle sleeve between produce the friction, not only lead to the noise grow, still lead to the pivot wearing and tearing easily, and adopt the utility model provides an axle sleeve body adopts soft material of moulding to make, and the relative metal material of its material is softer, and when axial or circumference reciprocating motion was made to the pivot, this kind of motion change of its ability self-adaptation pivot, and the noise is little during normal work, the difficult wearing and tearing of pivot.

Preferably, the method comprises the following steps:

the soft plastic material is graphite nylon or Teflon. By adopting the structure, the shaft sleeve has better lubricating effect, the noise can be further reduced, and the abrasion of the rotating shaft is reduced.

The second purpose of the utility model is realized like this:

the utility model provides a reciprocating motor with above-mentioned novel axle sleeve suitable for reciprocating motion motor, includes cylindric casing, is equipped with stator and rotor in this casing, and wherein the rotor includes the pivot, and its key lies in: the two ends of the shell are sealed through end covers, a shaft sleeve chamber is arranged on the inner wall of each end cover, the shaft sleeve chamber is internally provided with the shaft sleeve body, the rotating shaft is arranged along the axial direction of the shell, and the two ends of the rotating shaft respectively penetrate out of the corresponding shaft sleeve body and then stretch out of the shell. By adopting the technical scheme, when the rotating shaft performs axial or circumferential reciprocating motion, the shaft sleeve body can automatically adapt to the motion of the rotating shaft, and the noise of the motor during working is low.

Further, the air conditioner is provided with a fan,

the end cover of the outer end of the shaft sleeve chamber is provided with a limiting hole around the rotating shaft, the limiting hole is communicated with the shaft sleeve chamber, and the aperture of the limiting hole is larger than the diameter of the rotating shaft and smaller than the outer diameter of the shaft sleeve body. By adopting the structure, when the rotating shaft is under larger radial pressure, the rotating shaft can be abutted against the inner wall of the limiting hole, thereby playing the role of protecting the shaft sleeve body.

The stator comprises a cylindrical wire frame sleeved outside the rotating shaft, the middle part of the wire frame is sunken towards the rotating shaft to form a wire winding part, a coil is wound on the wire winding part, and the wire frames at two ends of the wire winding part are respectively fixedly connected with the inner wall of the shell;

the rotor also comprises two rotor cores, the rotating shafts at the two ends of the wire frame are respectively provided with one rotor core, each rotor core comprises a cylindrical mounting part, the mounting parts are sleeved on the rotating shafts and fixedly connected with the rotating shafts, and N rotor teeth are uniformly arranged on the mounting parts along the circumferential direction;

the stator still includes two stator tooth subassemblies, it is equipped with one respectively to correspond every in the casing rotor core stator tooth subassembly, stator tooth subassembly includes 2N stator teeth that have magnetism, 2N stator teeth around corresponding rotor core's circumference evenly distributed and respectively with the inner wall fixed connection of casing, it is adjacent stator tooth orientation the magnetic pole of rotor core one side is opposite, rotor core's rotor tooth orientation is adjacent between the stator tooth.

By adopting the structure, after the coil is electrified, the same induction magnetic poles are simultaneously generated on each rotor tooth of the rotor core, and the rotor teeth are positioned between the two adjacent stator teeth and interact with the magnetic poles on the adjacent stator teeth, so that a circumferential push-pull force is generated to drive the rotating shaft to rotate, and the rotor core drives the rotating shaft to do corresponding periodic reciprocating motion along the circumferential direction along with the periodic electrification direction change of the coil.

Above-mentioned rotor tooth comprises banding root of tooth and curved tooth top, wherein the root of tooth with installation department fixed connection, the bulge orientation at tooth top the casing, the middle part at tooth top is followed the axial of pivot is equipped with positioning groove, and is adjacent positioning gap has between the stator tooth, positioning groove orientation is adjacent positioning gap between the stator tooth. Adopt this structure, when the coil does not switch on, rotor core is equivalent to an iron, only there is simple magnet actuation effort between its and the stator tooth, location through positioning groove, the rotor tooth is all the time towards the clearance between two adjacent stator teeth, when external force acts on the pivot, positioning groove deflects the back towards any stator tooth, positioning groove plays fine magnetic resistance effect to the magnetic line of force that the stator tooth sent, after external force removes, the rotor tooth can automatic recovery to the home position, and do not have gapped location structure between the stator tooth and compare, set up the location clearance between the stator tooth and be favorable to the location accuracy on the one hand, on the other hand can also effectively prevent the magnetic leakage.

And a cylindrical magnetic steel guide sleeve is further sleeved on the rotating shaft between the two rotor cores and is positioned inside the wire frame, and two ends of the magnetic steel guide sleeve are respectively contacted with the two rotor cores. By adopting the structure, the magnetic conduction effect is enhanced, and thus, enough magnetic force can be provided even when a thinner rotating shaft is adopted.

Compared with the prior art, the beneficial effects of the utility model are that: the axle sleeve adopts soft plastic material to make, and the pivot is when carrying out axial or circumferential reciprocating motion, and this physical stamina of axle sleeve self-adaptation pivot motion, the motor during operation noise is little, and has certain lubricated effect, and pivot life is longer.

Drawings

Fig. 1 is a schematic view of the appearance structure of the present invention;

FIG. 2 is a cross-sectional view A-A' of FIG. 1;

fig. 3 is a sectional view B-B' of fig. 1.

Detailed Description

The present invention will be further described with reference to the following examples and accompanying drawings.

Embodiment 1, as shown in fig. 2, a novel axle sleeve suitable for reciprocating motion motor, including axle sleeve body 2, axle sleeve body 2 is made by soft material of moulding, soft material of moulding is graphite nylon or teflon, axle sleeve body 2 is formed by the coincide of a plurality of lantern rings, and a plurality of lantern rings all adopt the punching press technology process (can adjust the lantern ring number as required to the length of the axle sleeve body 2 that the adjustment was prepared), also can adopt the technology of moulding plastics to prepare in addition axle sleeve body 2.

Embodiment 2, as shown in fig. 1 to 3, a reciprocating motor includes a cylindrical housing 1, a stator and a rotor are disposed in the housing 1, the rotor includes a rotating shaft 3, two ends of the housing 1 are sealed by end caps 8, a shaft sleeve chamber is disposed on an inner wall of each end cap 8, the shaft sleeve chamber is provided with the shaft sleeve body 2 of embodiment 1, the rotating shaft 3 is disposed along an axial direction of the housing 1, two ends of the rotating shaft extend out of the housing 1 after penetrating through the corresponding shaft sleeve bodies 2, a limiting hole 4 is further disposed on the end cap 8 at an outer end of the shaft sleeve chamber around the rotating shaft 3, the limiting hole 4 is communicated with the shaft sleeve chamber, and an aperture of the limiting hole 4 is larger than a diameter of the rotating shaft 3 and smaller than an outer diameter of the shaft sleeve body 2.

Specifically, the stator comprises a cylindrical wire frame 5 sleeved outside the rotating shaft 3, the middle part of the wire frame 5 is recessed towards the rotating shaft 3 to form a wire winding part, a coil 6 is wound on the wire winding part, and the wire frames 5 at two ends of the wire winding part are respectively fixedly connected with the inner wall of the shell 1;

the rotor also comprises two rotor cores 7, the rotating shafts 3 at two ends of the wire frame 5 are respectively provided with one rotor core 7, each rotor core 7 comprises a cylindrical mounting part 7a, the mounting parts 7a are sleeved on the rotating shafts 3 and fixedly connected with the rotating shafts, N rotor teeth 7b are uniformly arranged on the mounting parts 7a along the circumferential direction, N is a natural number, and the natural number is preferably more than or equal to 2;

the stator further comprises two stator tooth assemblies 9, each stator tooth assembly 9 is arranged in the housing 1 corresponding to each rotor core 7, each stator tooth assembly 9 comprises 2N stator teeth 9a with magnetism, 2N stator teeth 9a are uniformly distributed around the corresponding circumference of the rotor core 7 and are respectively fixedly connected with the inner wall of the housing 1, south poles and north poles of the stator teeth 9a are distributed along the radial direction of the rotating shaft 3, the adjacent stator teeth 9a face the opposite magnetic poles of one face of the rotor core 7, and the rotor teeth 7b of the rotor core 7 face the adjacent stator teeth 9 a.

Preferably, stator tooth 9a is rectangular form magnet steel, and this magnet steel is close to rotor tooth 7 b's one side and the one side that is close to casing 1 are the two poles of the earth respectively, and are adjacent the magnet steel is close to the magnetic pole of rotor tooth 7 b's one side is opposite, rotor tooth 7b comprises rectangular form tooth root and curved tooth top, wherein tooth root with installation department 7a fixed connection, the bulge orientation at tooth top casing 1, the middle part at tooth top is followed the axial of pivot 3 is equipped with positioning groove 7c, and is adjacent positioning gap has between the stator tooth 9a, positioning groove 7c orientation is adjacent positioning gap between the stator tooth 9 a.

In order to increase the magnetic conductivity, a cylindrical magnetic conductive steel bushing 10 is further sleeved on the rotating shaft 3 between the two rotor cores 7, the magnetic conductive steel bushing 10 is located inside the wire frame 5, the magnetic conductive steel bushing 10 is fixedly connected with the rotating shaft 3, and two ends of the magnetic conductive steel bushing 10 are respectively contacted with the two rotor cores 7.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.

Claims (7)

1. The utility model provides a novel axle sleeve suitable for reciprocating motion motor which characterized in that: the novel bearing sleeve comprises a sleeve body (2), wherein the sleeve body (2) is made of soft plastic materials.

2. The novel bushing adapted for use with a reciprocating motor as defined in claim 1, wherein: the soft plastic material is graphite nylon or Teflon.

3. A reciprocating motor with a new bushing for a reciprocating motor according to claim 1 or 2, comprising a cylindrical housing (1), a stator and a rotor being arranged in the housing (1), wherein the rotor comprises a shaft (3), characterized in that: the both ends of casing (1) are passed through end cover (8) and are sealed, be equipped with the axle sleeve room on the inner wall of end cover (8), install in the axle sleeve room axle sleeve body (2), pivot (3) are followed the axial setting of casing (1), and its both ends are worn out respectively and are corresponded stretch out behind axle sleeve body (2) casing (1).

4. The reciprocating motor of claim 3, wherein: the end cover (8) at the outer end of the shaft sleeve chamber is provided with a limiting hole (4) around the rotating shaft (3), the limiting hole (4) is communicated with the shaft sleeve chamber, and the aperture of the limiting hole (4) is larger than the diameter of the rotating shaft (3) and smaller than the outer diameter of the shaft sleeve body (2).

5. The reciprocating motor of claim 3, wherein: the stator comprises a cylindrical wire frame (5) sleeved outside the rotating shaft (3), the middle part of the wire frame (5) is sunken towards the rotating shaft (3) to form a winding part, a coil (6) is wound on the winding part, and the wire frames (5) at two ends of the winding part are respectively fixedly connected with the inner wall of the shell (1);

the rotor also comprises two rotor cores (7), the rotating shafts (3) at the two ends of the wire frame (5) are respectively provided with one rotor core (7), each rotor core (7) comprises a cylindrical mounting part (7a), the mounting parts (7a) are sleeved on the rotating shafts (3) and fixedly connected with the rotating shafts, and N rotor teeth (7b) are uniformly arranged on the mounting parts (7a) along the circumferential direction;

the stator still includes two stator tooth subassemblies (9), correspond every in casing (1) rotor core (7) are equipped with one respectively stator tooth subassembly (9), stator tooth subassembly (9) include 2N have magnetic stator tooth (9a), 2N stator tooth (9a) around corresponding the circumference evenly distributed of rotor core (7) and respectively with the inner wall fixed connection of casing (1), it is adjacent stator tooth (9a) orientation the magnetic pole of rotor core (7) one side is opposite, rotor tooth (7b) orientation of rotor core (7) is adjacent between stator tooth (9 a).

6. The reciprocating motor of claim 5, wherein: rotor tooth (7b) comprise banding root of tooth and curved tooth top, wherein the root of tooth with installation department (7a) fixed connection, the bulge orientation at tooth top casing (1), the middle part at tooth top is followed the axial of pivot (3) is equipped with positioning groove (7c), and is adjacent stator tooth (9a) between have a positioning gap, positioning groove (7c) orientation is adjacent positioning gap between stator tooth (9 a).

7. The reciprocating motor of claim 5, wherein: two between rotor core (7) still the cover is equipped with cylindric magnetic conduction steel bushing (10) on pivot (3), this magnetic conduction steel bushing (10) are located inside line frame (5), just the both ends of magnetic conduction steel bushing (10) respectively with two rotor core (7) contact.