CN218162098U - Automatic head shaking mechanism - Google Patents

Abstract

The utility model relates to an automatic head shaking mechanism, including step motor, driving medium and pivot and bearing frame, be equipped with the race ring in the bearing frame, the driving medium includes external tooth gear and internal tooth rotation platform, step motor's output shaft and external tooth gear connection, and the bottom of internal tooth rotation platform is equipped with the ring gear, external tooth gear and this ring gear meshing, internal tooth rotation platform and pivot spacing connection, and the outer wall of junction with the inner circle of race ring is connected, and the lateral wall of pivot is equipped with hall chip, and the lateral wall of bearing frame is equipped with the magnetic pole with hall chip matched with. The utility model adopts the combined design of gear transmission and bearing, and the automatic head shaking mechanism has compact integral structure and is suitable for more small-sized electrical equipment by the smooth rotation of the rotating shaft, the internal tooth rotating platform and the bearing ring in the bearing seat; the utility model discloses still set up hall chip in the pivot, set up the magnetic pole at the bearing frame, realize step motor's gyration to replace current crank rocker structure or physics to block the structure.

Description

Automatic head shaking mechanism

Technical Field

The utility model relates to the technical field of household appliances, specific theory relates to an automatic mechanism of shaking head.

Background

The existing electric equipment with the head shaking function has no two commonly used head shaking power mechanisms, one is a crank-rocker structure, the structure is simple, the processing and manufacturing cost is low, and the rocker can swing back and forth only by driving a crank to rotate through a motor and passing through a linkage assembly; the other is a synchronous motor, and by arranging a physical block, when the motor rotates and meets the block, information is fed back, and a reversal signal is obtained.

Although the two common structures can complete the shaking function of the electrical equipment, the crank and rocker structure has the defects of dead point positions (namely, the connecting rod and the crank are collinear, the moment of the connecting rod and the crank is zero, and the crank cannot be pushed to rotate) and quick return characteristics (namely, the shaking speed of the rocker is higher than the shaking speed), so that the problems of shaking, shell clamping and the like are caused; the structure physically blocked by the synchronous motor usually has stiff movement and is not smooth enough, or the false angle of the shaking head and the failure of the shaking head usually occur because of the virtual position of the motor or the damage of the blocking piece. And the two oscillating mechanisms have high assembly difficulty and large size and are not suitable for small-sized household appliances.

The above problems are worth solving.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems of the prior art, the utility model provides an automatic head shaking mechanism.

The utility model discloses technical scheme as follows:

the utility model provides an automatic head mechanism shakes, includes step motor, driving medium and pivot, step motor passes through the driving medium drives the pivot is rotatory, still includes the bearing frame, be equipped with the race ring in the bearing frame, the driving medium includes external tooth gear and internal tooth rotating platform, step motor's output shaft with external tooth gear connects, the bottom of internal tooth rotating platform is equipped with the ring gear, external tooth gear and this ring gear meshing, the internal tooth rotating platform with the spacing connection of pivot, and the outer wall of junction with the inner circle of race ring is connected, the lateral wall of pivot is equipped with hall chip, the lateral wall of bearing frame be equipped with hall chip matched with magnetic pole.

According to the above scheme the utility model discloses, a serial communication port, the bottom of pivot is equipped with the stopper, the top of internal tooth rotating platform is equipped with spacing notch, the stopper with spacing notch is pegged graft.

Furthermore, the top of the internal tooth rotating table is provided with a boss protruding out of the upper surface of the internal tooth rotating table, a limiting notch is formed in the boss, the limiting block protrudes out of the lower surface of the rotating shaft, and when the limiting block is connected with the limiting notch in an inserting mode, the boss and the connecting part of the bottom of the rotating shaft form an annular groove position used for installation of the bearing ring.

According to above scheme the utility model discloses, its characterized in that, the lateral wall of bearing frame is equipped with two the magnetic pole, and symmetric distribution is in the both sides of bearing frame.

According to the above scheme the utility model discloses, a serial communication port, the bearing frame includes the bearing frame main part and is located the bottom of bearing frame main part bottom, and the lateral wall of bearing frame main part is equipped with a plurality of screw holes, the periphery of bottom be equipped with the U type breach of screw hole one-to-one.

According to above-mentioned scheme the utility model discloses, a serial communication port, the bearing frame is equipped with and is triangular distribution threely the screw hole.

According to the above scheme the utility model discloses, its beneficial effect lies in:

the utility model adopts the combined design of gear transmission and bearing, the automatic oscillating mechanism is installed and fixed in the electrical equipment through the bearing seat by rotating the shaft, the internal tooth rotating platform and the bearing ring to rotate stably in the bearing seat, the whole structure is compact, and the automatic oscillating mechanism is suitable for more small electrical equipment;

the utility model also arranges a Hall chip on the rotating shaft and a magnetic pole on the bearing seat to realize the rotation of the stepping motor so as to replace the existing crank rocker structure or physical blocking structure;

further, the utility model discloses a race ring sets up in the junction of pivot and internal tooth rotating table, when realizing pivot pivoted, can also fix pivot and driving medium better, strengthens mechanism overall structure intensity, provides the guarantee for steady rotation.

Drawings

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

fig. 2 is an exploded view of the present invention;

FIG. 3 is an exploded view of the bearing housing;

FIG. 4 is a schematic structural view of a rotating shaft and an internal tooth rotating table;

fig. 5 is a schematic connection diagram of the rotating shaft and the internal tooth rotating table.

In the figure, 1, a rotating shaft; 11. a limiting block;

2. a bearing seat; 21. a bearing ring; 210. installing a slot position; 22. a bottom cover; 221. a U-shaped notch; 23. a screw hole;

3. an internal tooth rotating table; 31. an inner gear ring; 32. a limiting notch; 33. a boss;

4. an external gear; 5. a stepping motor;

6. a Hall chip; 7. and (4) a magnetic pole.

Detailed Description

For better understanding of the objects, technical solutions and technical effects of the present invention, the present invention will be further explained with reference to the accompanying drawings and embodiments. It is to be noted that the following examples are only for explaining the present invention and are not intended to limit the present invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

The terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and should not be construed as limiting the technical solution.

As shown in fig. 1 to 4, an automatic pan head mechanism includes a stepping motor 5, a bearing seat 2, a transmission member and a rotating shaft 1, wherein the stepping motor 5 is used for providing power, and an output shaft thereof is connected with the rotating shaft 1 through the transmission member to drive the rotating shaft 1 to rotate; the outer end face of the rotating shaft 1 is connected with a swinging component of electrical equipment to realize the rotating function of the electrical equipment; the driving medium is located in bearing frame 2, and bearing frame 2 provides the protection for core moving parts such as driving medium.

As shown in fig. 3, in the present invention, the bearing seat 2 includes a main body of the bearing seat 2 and a bottom cover 22 located at the bottom of the main body of the bearing seat 2, the side wall of the main body of the bearing seat 2 is provided with a plurality of screw holes 23, and the periphery of the bottom cover 22 is provided with U-shaped notches 221 corresponding to the screw holes 23 one by one; the whole automatic head shaking mechanism can be installed and fixed in the electrical equipment through the screw hole 23, the U-shaped notch 221 leaves an operation space for an operator to assemble and disassemble screws, and the efficiency and the quality of installing the automatic head shaking mechanism are improved.

In a preferred embodiment, the outer side wall of the bearing seat 2 is provided with three screw holes 23 which are distributed in a triangular shape, so that the automatic oscillating mechanism can be better fixed.

Be equipped with race 21 in the bearing frame 2, specifically, the inner circle fixed connection of driving medium and race 21, the outer lane fixed connection of bearing frame 2 and race 21, and sliding connection between inner circle and the outer lane to but realize the driving medium free rotation in bearing frame 2 inside.

The utility model discloses in, the driving medium includes external gear 4 and internal tooth revolving stage 3, and external gear 4 is connected with step motor 5's output shaft, and the bottom of internal tooth revolving stage 3 is equipped with ring gear 31, and external gear 4 meshes with ring gear 31, and when step motor 5 operation, external gear 4 is rotatory, drives that internal tooth revolving stage 3 is rotatory.

As shown in fig. 5, the top of internal tooth rotating table 3 is equipped with limiting notch 32, and the bottom of pivot 1 is equipped with stopper 11, and stopper 11 is pegged graft with limiting notch 32, and it is rotatory to drive pivot 1 when realizing that internal tooth rotating table 3 is rotatory. The internal tooth rotating table 3 is provided with a boss 33 protruding out of the upper surface of the internal tooth rotating table, and the limiting notch 32 is arranged in the boss 33; a limiting block 11 of the rotating shaft 1 protrudes out of the lower surface of the rotating shaft 1, and after the rotating shaft 1 is inserted into the internal tooth rotating table 3, a circular groove for installing the bearing ring 21 is formed at the joint of the boss 33 and the bottom of the rotating shaft 1. This design can make overall structure compacter, reduces the size of bearing frame 2, is convenient for install the automatic mechanism of shaking the head and use in small-size electrical equipment.

By adopting the structure, the rotating shaft 1 and the internal tooth rotating platform 3 of the utility model rotate smoothly in the bearing seat 2, and the automatic oscillating mechanism can be installed and fixed in the electrical equipment through the bearing seat 2; the utility model discloses an overall structure is compact, is applicable to more small-size equipment.

As shown in fig. 1, on the other hand, in order to realize the back and forth swing function of the swing component of the electrical equipment, the utility model discloses the positive and negative direction that the feedback component controlled the step electrode is still set up. Therefore, the automatic oscillating mechanism further comprises a Hall chip 6 and a magnetic pole 7, the Hall chip 6 is arranged on the outer side wall of the rotating shaft 1 and moves circularly along with the rotation of the rotating shaft 1, the magnetic pole 7 is arranged on the outer side wall of the bearing seat 2, and when the Hall chip 6 rotates to a position above the position of the magnetic pole 7, an induction signal can be output, so that the stepping electrode is controlled to rotate reversely.

In the embodiment, the outer side walls of two opposite sides of the top end of the bearing seat 2 are respectively provided with a magnetic pole 7, and the hall chip 6 performs semi-circular motion between the two magnetic poles 7, so that the rotating angle range of the rotating shaft 1 is 180 degrees; in other embodiments, varying the spacing between the two poles 7 allows the shaft 1 to achieve different values of the range of rotation angles.

In summary, the utility model adopts the combined design of gear transmission and bearing, and rotates steadily in the bearing seat 2, the whole structure is compact, and the utility model is suitable for more small-sized electrical equipment; the bearing ring 21 is arranged at the joint of the rotating shaft 1 and the internal tooth rotating table 3, so that the rotating shaft 1 and the transmission part are better fixed, the overall structural strength of the mechanism is enhanced, and a guarantee is provided for stable rotation; the utility model discloses a 6 response of hall chip realize step motor 5's gyration to make automatic mechanism of shaking the head obtain the function of shaking the head.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be 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. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (6)

1. An automatic head shaking mechanism comprises a stepping motor, a transmission piece and a rotating shaft, wherein the stepping motor drives the rotating shaft to rotate through the transmission piece, and is characterized by also comprising a bearing seat, a bearing ring is arranged in the bearing seat,

the transmission part comprises an external gear and an internal gear rotating table, an output shaft of the stepping motor is connected with the external gear, an internal gear ring is arranged at the bottom of the internal gear rotating table, the external gear is meshed with the internal gear ring,

the internal tooth rotating table is connected with the rotating shaft in a limiting way, the outer wall surface of the joint is connected with the inner ring of the bearing ring,

the lateral wall of pivot is equipped with hall chip, the lateral wall of bearing frame be equipped with hall chip matched with magnetic pole.

2. The automatic pan head mechanism of claim 1, characterized in that, the bottom of the rotating shaft is provided with a limiting block, the top of the internal tooth rotating table is provided with a limiting notch, and the limiting block is inserted into the limiting notch.

3. The automatic pan head mechanism of claim 2, wherein the top of the internal gear rotating table is provided with a boss protruding from the upper surface thereof, the limiting notch is provided in the boss, the limiting block protrudes from the lower surface of the rotating shaft, and when the limiting block is inserted into the limiting notch, a circular notch groove for installing the bearing ring is formed at the joint of the boss and the bottom of the rotating shaft.

4. An automatic pan mechanism as claimed in claim 1, wherein the outer side wall of the bearing seat is provided with two of the magnetic poles, and the two magnetic poles are symmetrically distributed on two sides of the bearing seat.

5. The automatic pan head mechanism of claim 1, wherein the bearing seat comprises a bearing seat body and a bottom cover at the bottom of the bearing seat body, the side wall of the bearing seat body is provided with a plurality of screw holes, and the periphery of the bottom cover is provided with U-shaped notches corresponding to the screw holes one by one.

6. An automatic pan head mechanism as claimed in claim 5, wherein the bearing seat is provided with three said screw holes in a triangular arrangement.

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