CN209881580U - Locking motor - Google Patents

Abstract

The utility model belongs to the technical field of the motor and specifically relates to a locking motor is related to, wherein this locking motor, including the pivot, still include: a locking ring embedded and fixed in the rear end cover; the locking ring is internally provided with a braking part, the rotating shaft is in damping fit with the braking part, and then at the moment that the locking motor stops rotating, the braking part and the outer wall of the rotating shaft perform friction braking so as to realize timely braking of the locking motor and perform a self-locking function on the locking motor when the locking motor does not work.

Description

Locking motor

Technical Field

The utility model belongs to the technical field of the motor and specifically relates to a locking motor is related to.

Background

After the existing motor stops working, the motor can stop after continuously rotating for a period of time due to inertia, namely the motor can continuously drive the driven part to work for a certain time and then stop, and meanwhile, the motor cannot stop in time if the driven part is triggered accidentally.

In order to solve the above problems, a locking motor needs to be designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a locking motor to the realization is in time brakied and auto-lock to the motor.

In order to solve the technical problem, the utility model provides a locking motor, including the pivot, still include:

a locking ring embedded and fixed in the rear end cover; wherein

And a braking part is arranged in the locking ring, and the rotating shaft is in damping fit with the braking part.

Further, the brake portion includes at least one brake pad extending inwardly from the locking ring;

the inner side of the brake block forms a brake friction surface to abut against the outer wall of the rotating shaft;

and at the moment that the locking motor stops rotating, the braking friction surface of the braking plate and the outer wall of the rotating shaft are subjected to friction braking.

Furthermore, a thickened boss is arranged at the contact position of the brake pad and the rotating shaft so as to increase the area of the brake friction surface.

Further, the thickness of the brake pad is less than the thickness of the locking ring;

and the edge side of the brake block is integrally provided with a reinforcing part fixed with the inner side wall of the locking ring.

Furthermore, each braking piece is evenly distributed on the inner side wall of the locking ring in the circumferential direction.

Further, the outer side wall of the locking ring is provided with at least one clamping key;

the middle part of the inner side of the rear end cover is provided with a shaft hole suitable for the end part of the rotating shaft to extend out;

the mounting position of locking ring is located shaft hole department, and includes the installation wall, the last edge of installation wall is provided with the bayonet socket with the card key adaptation.

Further, the locking motor comprises a shell, a front end cover and a rear end cover; wherein

The front end cover and the rear end cover are respectively provided with a limiting bulge matched with the limiting notches at the two ends of the shell.

Furthermore, the output end sleeve of the rotating shaft is provided with a front bearing positioned at the shaft hole of the front end cover.

The beneficial effects of the utility model are that, the utility model discloses a locking motor, including the pivot, still include: a locking ring embedded and fixed in the rear end cover; the locking ring is internally provided with a braking part, the rotating shaft is in damping fit with the braking part, and then at the moment that the locking motor stops rotating, the braking part and the outer wall of the rotating shaft perform friction braking so as to realize timely braking of the locking motor and perform a self-locking function on the locking motor when the locking motor does not work.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Figure 1 is a perspective view of a preferred embodiment of a locking ring of the present invention;

figure 2 is a perspective view of a preferred embodiment of the locking ring mounting of the present invention;

fig. 3 is a perspective view of a preferred embodiment of the rear end cap of the present invention;

fig. 4 is a perspective view of a preferred embodiment of the locking motor of the present invention.

In the figure: 100-rotating shaft, 300-rear end cover, 310-mounting wall, 311-bayonet, 320-shaft hole, 330-limiting protrusion, 400-locking ring, 410-braking plate, 420-braking part, 430-thickening boss, 440-reinforcing part, 450-clamping key, 460-braking friction surface, 500-front end cover, 510-front bearing, 600-shell and 610-limiting notch.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

Figure 1 is a perspective view of a preferred embodiment of a locking ring of the present invention;

figure 2 is a perspective view of a preferred embodiment of the locking ring mounting of the present invention.

As shown in fig. 1 and fig. 2, the locking motor of the present invention, including the rotating shaft 100, further includes: a locking ring 400 embedded and fixed in the rear end cap 300; the locking ring 400 is provided with a braking portion 420 therein, and the rotating shaft 100 and the braking portion 420 are in damping fit, so that when the locking motor stops rotating, the braking portion 420 and the outer wall of the rotating shaft 100 are in friction braking, so as to realize timely braking of the locking motor, and perform a self-locking function on the locking motor when the locking motor does not work.

In this embodiment, the material of the locking ring may be, but is not limited to, a PEEK material, which has a good high temperature resistance, and the locking ring made of the PEEK material can also ensure sufficient locking performance under the condition that a large amount of heat is generated due to friction braking, thereby ensuring the braking effect, and meanwhile, the locking ring may also be a POM, PVC, PA material, or the like.

In this embodiment, the brake portion 420 includes at least one brake pad 410 extending inwardly from the locking ring 400; the inner side of the brake pads 410 forms a brake friction surface 460 to abut against the outer wall of the rotation shaft 100, and the number of the brake pads 410 is preferably three, thereby performing braking by a frictional force.

In this embodiment, the brake pad 410 is provided with a thickened boss 430 at the contact position with the rotating shaft 100, so as to increase the area of the brake friction surface 460, thereby increasing the friction force and further improving the braking effect.

In this embodiment, the thickness of the brake pad 410 is less than the thickness of the locking ring 400; the edge side of the brake pad 410 is integrally provided with a reinforcing part 440 fixed to the inner side wall of the locking ring 400, and the brake pad 410 and the locking ring 400 are separately provided, so that the brake pad 410 is prevented from deforming the locking ring 400, and the amount of deformation of the brake pad 410 can be reduced by the reinforcing part 440, thereby improving the braking effect.

In this embodiment, the brake pads 410 are circumferentially and uniformly distributed on the inner side wall of the locking ring 400, and further the brake pads 410 brake the rotating shaft 100 along the radial direction, thereby further improving the braking effect.

Fig. 3 is a perspective view of a preferred embodiment of the rear end cap of the present invention.

As shown in fig. 3, in the present embodiment, the outer sidewall of the locking ring 400 is provided with at least one catch 450; the middle part of the inner side of the rear end cap 300 is provided with a shaft hole 320 suitable for the end of the rotating shaft 100 to extend out; the mounting position of the locking ring 400 is located at the shaft hole 320 and includes a mounting wall 310, the upper edge of the mounting wall 310 is provided with a bayonet 311 adapted to the snap keys 450, preferably, the number of the snap keys 450 can be three, and the snap keys 450 are uniformly distributed on the outer side of the locking ring 400, thereby ensuring the mounting stability of the mounting wall 310 on the locking ring 400.

In this embodiment, a rear bearing is further disposed in the shaft hole 320 to support the rotation of the rotating shaft 100, the rear bearing is fixed on the inner wall of the mounting wall 310 by a bearing pressing plate, and the rear bearing may be an oil bearing.

Fig. 4 is a perspective view of a preferred embodiment of the locking motor of the present invention.

As shown in fig. 4, in an embodiment, the locking motor includes a housing 600, and a front cover 500 and a rear cover 300; wherein, the front end cover 500 and the rear end cover 300 are respectively provided with a limit protrusion 330 adapted to the limit notches 610 at two ends of the casing 600, thereby avoiding the casing 600.

In this embodiment, the output end of the rotating shaft 100 is sleeved with a front bearing 510 located at the shaft hole of the front end cover 500, and the front bearing 510 may be, but not limited to, a deep groove ball bearing, so as to ensure the rotational supporting force of the rotating shaft 100.

In summary, in the locking motor of the present embodiment, the locking ring 400 is fixed on the mounting wall 311 by the engaging key 450 and the engaging buckle 311, and at the moment that the locking motor stops rotating, the braking friction surface 460 of the brake pad 410 and the outer wall of the rotating shaft 100 perform friction braking, so as to achieve timely braking of the locking motor and perform a self-locking function on the locking motor when the locking motor does not operate.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (8)

1. A locking motor, includes the pivot, its characterized in that still includes:

a locking ring embedded and fixed in the rear end cover; wherein

And a braking part is arranged in the locking ring, and the rotating shaft is in damping fit with the braking part.

2. The locking motor of claim 1,

the brake section includes at least one brake pad extending inwardly from the locking ring;

the inner side of the brake block forms a brake friction surface to abut against the outer wall of the rotating shaft.

3. The locking motor of claim 2,

and a thickened boss is arranged at the contact position of the brake pad and the rotating shaft so as to increase the area of the brake friction surface.

4. The locking motor of claim 2,

the thickness of the brake block is smaller than that of the locking ring;

and the edge side of the brake block is integrally provided with a reinforcing part fixed with the inner side wall of the locking ring.

5. The locking motor of claim 2,

each braking piece is evenly distributed on the inner side wall of the locking ring in the circumferential direction.

6. The locking motor of claim 1,

the outer side wall of the locking ring is provided with at least one clamping key;

the middle part of the inner side of the rear end cover is provided with a shaft hole suitable for the end part of the rotating shaft to extend out;

the mounting position of locking ring is located shaft hole department, and includes the installation wall, the last edge of installation wall is provided with the bayonet socket with the card key adaptation.

7. The locking motor of claim 1,

the locking motor comprises a shell, a front end cover and a rear end cover; wherein

The front end cover and the rear end cover are respectively provided with a limiting bulge matched with the limiting notches at the two ends of the shell.

8. The locking motor of claim 7,

the output end of the rotating shaft is sleeved with a front bearing positioned at the shaft hole of the front end cover.