阅读说明：本技术 电磁失电制动器的减振传动联接装置 (Vibration-damping transmission connecting device of electromagnetic power-off brake ) 是由 杨海燕 杨俊� 林正华 彭鑫 于 2019-10-18 设计创作，主要内容包括：本发明属于机械技术领域,涉及一种电磁失电制动器的减振传动联接装置。电磁失电制动器包括制动盘,所述制动盘的中心开设有连接孔,所述连接孔的孔壁凹陷形成内花键槽,其特征在于:所述制动盘上设置有弹性片,所述弹性片包括与制动盘端面接触的弹性片基片,弹性片基片对应于制动盘中心孔的花键槽处设有向花键槽内翻折并形成在花键槽两侧壁旁的挡片,所述挡片处于自由状态时与花键槽的侧壁之间具有弹性间隙。它可有效降低制动盘与转子之间的噪音。(The invention belongs to the technical field of machinery, and relates to a vibration reduction transmission connecting device of an electromagnetic power-off brake. The electromagnetic power-off brake is characterized in that the brake disc is provided with an elastic sheet, the elastic sheet comprises an elastic sheet substrate which is in contact with the end face of the brake disc, the elastic sheet substrate is provided with a blocking sheet which is turned inwards towards the spline groove and is formed beside two side walls of the spline groove corresponding to the spline groove of the center hole of the brake disc, and an elastic gap is formed between the blocking sheet and the side walls of the spline groove when the blocking sheet is in a free state. It can effectively reduce the noise between the brake disc and the rotor.)

1. A vibration reduction transmission coupling device of an electromagnetic power-off brake comprises a brake disc, a connecting hole is formed in the center of the brake disc, and the hole wall of the connecting hole is sunken to form an inner spline groove.

2. The vibration reducing transmission coupling device of the electromagnetic power loss brake as claimed in claim 1, wherein an inclined angle is formed between the blocking piece and the side wall of the spline groove when the blocking piece is in the free state, so that the elastic gap is formed between the blocking piece and the side wall of the spline groove.

3. The coupling device of claim 1, wherein the blocking plate is curved when in a free state, such that the elastic gap is formed between the blocking plate and the side wall of the spline groove when the blocking plate is in the free state.

4. The vibration-damping transmission coupling device of the electromagnetic power-off brake of claim 1, wherein the end of the baffle plate (21) is bent to form a limiting plate (22), the limiting plate (22) is attached to the brake disc (1), a limiting notch (23) is formed between the baffle plate (21) and the limiting plate (22), and the brake disc (1) can be partially embedded into the limiting notch (23).

5. The coupling device of the electromagnetic power loss brake with vibration damping and transmission as claimed in claim 4, wherein the baffle plate (21) and the limit plate (22) are smoothly transited.

6. The coupling device of claim 1, 2 or 3, wherein a stop is provided in each spline groove of the base plate corresponding to the center hole of the brake disc.

7. A vibration damping transmission coupling device for an electromagnetic power loss brake as defined in claim 2, wherein said included angle of inclination is 1-10 degrees.

8. The electromagnetic power-off brake damping transmission coupling device according to claim 1, 2 or 3, wherein the elastic sheet base is provided with an installation part (24), the blocking piece (21) is arranged at two ends of the installation part (24), the installation part (24) is provided with a connecting part (25) connected with the blocking piece (21), and a yielding notch (26) is arranged between the connecting part (25) and the installation part (24).

9. The coupling device of the electromagnetic power-off brake with vibration damping and transmission as claimed in claim 1, 2 or 3, characterized in that the elastic sheet (2) is made of metal elastic material.

Technical Field

The invention belongs to the technical field of machinery, and relates to a vibration reduction transmission connecting device of an electromagnetic power-off brake.

Background

The electromagnetic power-off brake consists of iron core, spring, armature, friction plate, brake disc, driving connector and other parts and is used mainly in braking various motors. After the iron core of the electromagnetic power-off brake is powered on, a winding generates a magnetic field to suck the armature back, at the moment, the armature compresses a spring fixed in the iron core, and a motor rotating shaft connected with a brake disc through a connecting device can freely rotate; when the iron core loses power, the magnetic field of the iron core disappears, and then the attraction force to the armature is lost, the armature is ejected out by the spring, the armature and the brake disc are mutually pressed, the brake torque is generated on the brake disc through the friction plate to limit the rotation of the brake disc, and the brake disc is connected with the rotor through the transmission connecting device, so that the rotation of the motor rotor is limited.

The working principle of the electromagnetic power-off brake determines that the brake disc has displacement freedom degree in the axial direction when working, so that a certain gap exists in the transmission connection between the brake disc and the rotor, and the existence of the gap is very likely to cause noise and vibration to be generated at the transmission connection part when the motor runs, thereby influencing the user experience of a user.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a damping transmission coupling device of an electromagnetic power-off brake, which can effectively reduce the noise between a brake disc and a rotor.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides an electromagnetism loses electric brake's damping transmission coupling device, electromagnetism loses electric brake and includes the brake disc, the connecting hole has been seted up at the center of brake disc, the sunken internal spline groove that forms of pore wall of connecting hole, be provided with the flexure strip on the brake disc, the flexure strip includes the flexure strip substrate with brake disc end face contact, and the flexure strip substrate is equipped with to spline inslot turn over a book and form the other separation blade in spline groove both sides wall corresponding to the spline groove department of brake disc centre bore, the separation blade is in free state when and has the elastic gap between the lateral wall in spline groove. The rotor can be embedded into the connecting hole of the brake disc, and is provided with a spline, and the spline on the rotor can be embedded into a spline groove; before the splines of the rotor are matched with the brake disc, the width of the spline grooves of the brake disc limited by the two blocking sheets is smaller than the width of the splines of the rotor.

When the brake disc is connected with electric motor rotor, electric motor rotor's spline compression separation blade to eliminated the fit clearance between rotor spline and the brake disc spline groove, the separation blade forms elastic buffer between brake disc and electric motor rotor's spline, thereby can effectively eliminate the noise that sends because of the striking between electric motor rotor spline and the brake disc among the motor operation process, reduced the running noise of motor. The elastic piece substrate can realize good location and good stability to the separation blade, after long-time use, still can play better cushioning effect to can reduce the noise between brake disc and the rotor, improve user's user experience.

Preferably, an inclined included angle is formed between the blocking sheet and the side wall of the spline groove when the blocking sheet is in a free state, so that the elastic gap is formed between the blocking sheet and the side wall of the spline groove. When the separation blade is in a free state, an inclined included angle is formed between the separation blade and the side wall of the spline groove, so that a gap is formed between the separation blade and the side wall of the spline groove.

Preferably, the blocking piece is in a curved surface shape in a free state, so that the elastic gap is formed between the blocking piece and the side wall of the spline groove when the blocking piece is in the free state. The curved surface shape of the baffle can be compressed by the rotor spline so as to eliminate the fit clearance between the rotor spline and the brake disc spline groove. The curved surface can be in an arc shape, or in a folded angle shape, or in a wave shape, or in other cross-sectional shapes.

Preferably, the end part of the baffle plate is bent to form a limiting plate, the limiting plate is attached to the brake disc, a limiting notch is formed between the baffle plate and the limiting plate, and the brake disc can be partially embedded into the limiting notch. The setting of this structure for the setting that the flexure strip can be better on the brake disc, has improved the stability that the flexure strip is connected with the brake disc, makes when the motor operation, noise absorption and impact force that the separation blade can be stable.

Preferably, the baffle plate and the limiting plate are in smooth transition. Smooth transition between separation blade and the limiting plate enables the separation blade to obtain better elasticity to make the separation blade can play better buffering noise reduction effect between brake disc and the rotor.

Preferably, the elastic piece substrate is provided with a stop piece in each spline groove corresponding to the central hole of the brake disc. The separation blade is arranged in each spline groove, so that the buffering and noise reduction effects of the separation blade on the brake disc and the rotor can be further enhanced.

Preferably, the inclined included angle is 1-10 degrees. The angle of the inclined included angle is controlled to be 1-10 degrees, so that elastic buffering of the blocking piece between the brake disc and the motor rotor can be guaranteed, and assembling convenience between the brake disc and the motor rotor can be guaranteed.

Preferably, be equipped with the installation department on the elastic sheet base piece, the separation blade sets up the both ends at the installation department, be equipped with the connecting portion of being connected with the separation blade on the installation department, the notch of stepping down has between connecting portion and the installation department. The setting of this structure for the separation blade can be better set up in the internal spline inslot, to the brake disc that the size is similar, the flexure strip can all be installed, further improvement the commonality of flexure strip.

Preferably, the elastic sheet is made of metal elastic material. Adopt metal elastic material to make the flexure strip can improve the durable degree of flexure strip to a great extent under the prerequisite of noise abatement and buffering to make the structure and the intensity of flexure strip can be more stable.

Compared with the prior art, the damping transmission connecting device of the electromagnetic power-off brake has the following advantages:

1. the separation blade forms elastic buffer between the spline of brake disc and electric motor rotor to can effectively eliminate the noise that sends because of the striking between electric motor rotor spline and the brake disc among the motor operation process, reduce the operation noise of motor. The elastic piece substrate can realize good location and good stability to the separation blade, after long-time use, still can play better cushioning effect to can reduce the noise between brake disc and the rotor, improve user's user experience.

The effect of limiting plate for the setting that the flexure strip can be better on the brake disc, improved the stability that the flexure strip is connected with the brake disc, make when the motor operation, noise absorption and impact force that the separation blade can be stable.

Drawings

FIG. 1 is a schematic structural view of the vibration damping transmission coupling device of the electromagnetic power-off brake after being assembled;

FIG. 2 is a schematic structural view of the vibration reduction transmission coupling device and the elastic sheet of the electromagnetic power-off brake after being assembled;

FIG. 3 is a schematic structural diagram of an elastic sheet in the vibration reduction transmission coupling device of the electromagnetic power loss brake;

FIG. 4 is a cross-sectional view C-C of FIG. 2;

FIG. 5 is an enlarged view at I of FIG. 4;

FIG. 6 is another schematic structural diagram of the damping transmission coupling device of the electromagnetic power-off brake;

FIG. 7 is a cross-sectional view D-D of FIG. 6;

FIG. 8 is an enlarged view at K of FIG. 7;

FIG. 9 is a schematic perspective view of an elastic sheet of the present invention;

fig. 10 is a front view of the elastic sheet of the present invention.

In the figure, 1, a brake disc; 11. connecting holes; 12. a spline groove; 2. an elastic sheet; 21. a baffle plate; 22. a limiting plate; 23. a limiting notch; 24. an installation part; 25. a connecting portion; 26. a abdication notch; 27. an elastic sheet substrate; 3. a rotor; 31. a spline.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.