CN211501489U

CN211501489U - Brake driver

Info

Publication number: CN211501489U
Application number: CN201922243770.XU
Authority: CN
Inventors: 李迎
Original assignee: Okin Refined Electric Technology Co Ltd
Current assignee: Okin Refined Electric Technology Co Ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-09-15
Anticipated expiration: 2029-12-13

Abstract

The utility model provides a brake driver, including motor, gear assembly and gear box, the shaft extension section of motor sets up the gear box, and the gear assembly is installed in the gear box, and the gear assembly includes gear, gear shaft, and the output shaft department of motor is equipped with worm portion, worm portion and gear engagement, its characterized in that, worm portion cover are equipped with the brake circle, and it locates to establish with worm portion cover and is equipped with the deformation groove to brake circle.

Description

Brake driver

Technical Field

The utility model relates to a brake actuator.

Background

The existing furniture driver is widely applied to household furniture such as electric sofas, electric beds, electric lifting tables and the like, and is popular due to convenient operation and diversified functions. The existing driver generally realizes power transmission through the matching of the worm and the gear, and the driving mode can cause the driver to be forced to drive if the worm or the gear is touched carelessly to rotate, so that certain potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to a brake actuator with simple structure and high safety.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a brake driver comprises a motor, a gear assembly and a gear box, wherein the gear box is arranged on a shaft extension section of the motor, the gear assembly is installed in the gear box and comprises a gear and a gear shaft, a worm part is arranged at an output shaft of the motor and meshed with the gear, and the brake driver is characterized in that a brake ring is sleeved on the worm part, and a deformation groove is formed in the position, where the brake ring is sleeved with the worm part, of the brake ring.

The brake ring comprises a sleeving hole, an outer ring and connecting plates, the connecting plates are annularly arranged on the outer surfaces of the sleeving holes, the sleeving holes are connected with the outer ring through the connecting plates, the inner surfaces of the sleeving holes are sunken towards the direction of the outer ring, and a deformation groove is formed between each two adjacent connecting plates.

And the outer surface of the outer ring is sunken towards the direction of the sleeving hole and a groove is formed between the two adjacent connecting plates.

Wherein, the width of the connecting plate is gradually widened from the joint of the connecting plate and the sleeving hole to the joint of the connecting plate.

Wherein, the diameter of the sleeving hole is smaller than that of the cross section of the worm part, and the diameter difference is between 0.1 and 1 mm.

Compared with the prior art, the brake driver of the utility model has the following advantages:

the brake ring is sleeved on the worm part, the diameter of the sleeved hole of the brake ring is smaller than that of the cross section of the worm part, and the rotating friction of the worm part is improved, so that the driver has better brake performance, and the safety is improved.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic perspective view of the present invention;

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

fig. 3 is the schematic view of the brake rim structure of the present invention.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In addition, in the embodiments of the present invention, the directional indications (such as upper, lower, left, right, front and rear … …) are mentioned, and the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

All directions or positional relationships mentioned in the embodiments of the present invention are positional relationships based on the drawings, and are only for convenience of description and simplified description, and do not imply or imply that the device or element referred to must have a specific orientation, and should not be construed as limiting the present invention. If there is a description in an embodiment of the present invention that refers to "or" second ", etc., then this description of" or "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying any relative importance or implicit identification of the number of technical features indicated. Thus, a feature defined as "a" or "a second" can explicitly or implicitly include at least one of the feature.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1-3, the utility model provides a brake driver, which comprises a motor 1, a gear assembly 2 and a gear box 3, wherein the gear box 3 is arranged at the shaft extension section of the motor 1, the gear assembly 2 is arranged in the gear box 3, the gear assembly 2 comprises a gear 21 and a gear shaft 22, a worm part 11 is arranged at the output shaft of the motor 1, worm part 11 and the meshing of gear 21, worm part 11 cover are equipped with brake circle 4, brake circle 4 includes outer loop 6, connecting plate 7 and the cover that is used for the cover to establish worm part 11 establish hole 5, the annular setting of connecting plate 7 establishes 5 surfaces at the cover, the cover is established hole 5 and is connected with outer loop 6 through connecting plate 7, the cover is established 5 internal surfaces and is sunken and adjacent two connecting plates 7 shape between to the outer loop 6 direction and become groove 41, the shape that sets up on brake circle 4 becomes groove 41 and can be when worm part 11 rotates at a high speed, provide certain crooked deformation volume for brake circle 4.

In this embodiment, be provided with three deformation groove 41 on brake rim 4, establish hole 5 surface equidistant annular setting in the cover promptly to this guarantees that the crooked deformation volume that every deformation groove 41 received is the same, can effective homodisperse stress, avoids brake rim 4 fracture.

In this embodiment, the outer surface of the outer ring 6 is recessed towards the direction of the sleeving hole 5 and forms a groove 51 between two adjacent connecting plates 7, so as to provide a certain amount of bending deformation for the brake ring 4, and prevent the brake ring 4 from being broken in the sleeving process with the worm part 11.

In this embodiment, the width of connecting plate 7 is established the hole 5 junction by with the cover and is widened gradually to the junction with connecting plate 7, can guarantee the holistic intensity of braking circle 4, can provide certain bending deformation volume for the cover again effectively, avoids braking circle 4 to establish the in-process fracture in with the worm part 11 cover.

In this embodiment, the diameter of the sleeve hole 5 is smaller than the diameter of the cross section of the worm part 11, specifically, the sleeve hole 5 slides along the end of the output shaft of the motor 1 in the click direction and is sleeved on the worm part 11, and the sleeve hole 5 has a certain pressure on the worm part 11. Preferably, the diameter difference between the cross section of the sleeving hole 5 and the cross section of the worm part 11 is between 0.1 and 1mm, if the diameter difference between the cross section of the sleeving hole 5 and the cross section of the worm part 11 is greater than 1mm, the worm part 11 is not easy to be inserted into the sleeving hole 5, if the worm part 11 is forcibly inserted into the sleeving hole 5, the hole wall of the sleeving hole 5 is easy to break, and if the diameter difference between the cross section of the sleeving hole 5 and the cross section of the worm part 11 is less than 0.1mm, the pressing force of the sleeving hole 5 on the worm part 11 is too small, so that the friction force between the worm part 11 and the brake ring 4 cannot be effectively improved, namely, the brake ring 4 cannot effectively realize the braking effect on the worm part 11.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a brake driver, includes motor (1), gear assembly (2) and gear box (3), and the axle extension section of motor (1) sets up gear box (3), and gear assembly (2) are installed in gear box (3), gear assembly (2) are including gear (21), gear shaft (22), the output shaft department of motor (1) is equipped with worm portion (11), worm portion (11) and gear (21) meshing, its characterized in that, worm portion (11) cover is equipped with brake rim (4), brake rim (4) are gone up and are established the department with worm portion (11) cover and are equipped with deformation groove (41).

2. A brake actuator according to claim 1, wherein the brake ring (4) comprises a sleeve hole (5), an outer ring (6) and a connecting plate (7), the connecting plate (7) is annularly arranged on the outer surface of the sleeve hole (5), the sleeve hole (5) is connected with the outer ring (6) through the connecting plate (7), the inner surface of the sleeve hole (5) is recessed towards the outer ring (6) to form a deformation groove (41) between two adjacent connecting plates (7).

3. A brake actuator according to claim 2, wherein the outer surface of the outer ring (6) is recessed in the direction of the housing opening (5) to form a groove (51) between two adjacent webs (7).

4. A brake actuator according to claim 2, wherein the width of the web (7) widens from the connection with the housing opening (5) to the connection with the web (7).

5. A brake actuator according to claim 2, wherein the diameter of the sleeve opening (5) is smaller than the diameter of the cross-section of the worm (11) and the difference in diameter is between 0.1 and 1 mm.