CN110131338B - Electromagnetic brake and friction plate assembly thereof - Google Patents
Electromagnetic brake and friction plate assembly thereof Download PDFInfo
- Publication number
- CN110131338B CN110131338B CN201910363269.9A CN201910363269A CN110131338B CN 110131338 B CN110131338 B CN 110131338B CN 201910363269 A CN201910363269 A CN 201910363269A CN 110131338 B CN110131338 B CN 110131338B
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- friction plate
- armature
- baffle
- magnetic
- stator
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- 230000005389 magnetism Effects 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 9
- 238000005299 abrasion Methods 0.000 abstract description 6
- 230000009471 action Effects 0.000 abstract description 6
- 239000000428 dust Substances 0.000 abstract description 6
- 239000002131 composite material Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/18—Electric or magnetic
- F16D2121/20—Electric or magnetic using electromagnets
Abstract
The invention provides an electromagnetic brake and a friction plate assembly thereof, and relates to the technical field of power equipment. Wherein the friction plate assembly comprises: the armature, the friction plate and the baffle are coaxially stacked; one side of the baffle is connected with a connecting column, the armature is sleeved on the connecting column, the armature can slide along the connecting column, and the friction plate is limited between the baffle and the armature; the armature, the friction plate and the baffle plate have magnetism, the armature and the friction plate have mutual repulsive force, and the friction plate and the baffle plate have mutual repulsive force. In the power-on engineering, a gap is formed between the stator and the friction plate, the friction plate rotates between the armature and the baffle under the action of magnetic repulsive force, contact friction is not generated on the end faces of the two ends of the friction plate in the rotating process, dust, noise and abrasion caused by friction are reduced to the maximum extent, and the reliability of the electromagnetic brake is guaranteed.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to an electromagnetic brake and a friction plate assembly thereof.
Background
The electromagnetic brake is an automatic executing element in the electric equipment and mainly plays roles of transmitting power, controlling movement and the like in a mechanical transmission system; the electromagnetic brake is an important basic component, integrates mechanical, electric and electronic technologies, and is mainly used for precisely controlling and braking a rotating mechanism (such as a motor device and the like).
When the electromagnetic brake is arranged in the servo motor, the friction plate of the electromagnetic brake rotates along with the rotating shaft of the motor, and in the brake electrifying engineering, the friction plate can deflect to generate bad noise, and the deflection leads to friction between one side of the friction plate or an armature or a baffle plate to generate dust and generate unnecessary abrasion.
Disclosure of Invention
In order to solve the technical problems of noise, abrasion and dust generated by deflection of a friction plate in the prior art, the invention mainly aims to provide an electromagnetic brake and a friction plate assembly thereof for improving friction between the friction plate and an armature or a baffle in power-on engineering.
In a first aspect, embodiments of the present invention provide a friction plate assembly comprising: the armature, the friction plate and the baffle are coaxially stacked;
one side of the baffle is connected with a connecting column, the armature is sleeved on the connecting column, the armature can slide along the connecting column, and the friction plate is limited between the baffle and the armature;
The armature, the friction plate and the baffle plate have magnetism, the armature and the friction plate have mutual repulsive force, and the friction plate and the baffle plate have mutual repulsive force.
Further, in a preferred embodiment of the present invention,
A first magnetic piece is arranged on one side of the armature close to the friction plate;
the friction plate is provided with a second magnetic piece;
And a third magnetic piece is arranged on one side of the baffle close to the friction plate.
Further, in a preferred embodiment of the present invention, both the end face of the first magnetic member and the end face of the third magnetic member are coated with a wear-resistant layer.
Further, in a preferred embodiment of the present invention, the second magnetic member is integrally formed with the friction plate.
Further, in a preferred embodiment of the present invention, the armature is provided with a first annular groove, and the first magnetic member is assembled with the first groove;
The baffle is provided with an annular second groove, and the third magnetic piece is assembled with the second groove.
Further, in a preferred embodiment of the present invention, the friction plate is a permanent magnet.
Further, in a preferred embodiment of the present invention,
The end face, close to the friction plate, of the armature is provided with a magnetic coating;
The end face, close to the friction plate, of the baffle plate is provided with a magnetic coating;
and magnetic coatings are arranged on two end surfaces of the friction plate.
Further, in a preferred embodiment of the present invention, a plurality of the connection posts are provided, and a plurality of the connection posts are located in the circumferential direction of the baffle plate.
In a second aspect, embodiments of the present invention provide a friction plate assembly comprising a stator, a spring, and any one of the friction plate assemblies;
one end of the spring is connected with the armature, the other end of the spring is connected with the stator, and a gap is formed between the stator and the armature in the state that the spring stretches;
One end of the connecting column is connected with the baffle, and the other end of the connecting column is connected with the stator.
Further, in a preferred embodiment of the present invention, the gap has a width of 0.05cm to 0.15cm.
Further, in a preferred embodiment of the present invention, a plurality of mounting holes are provided in the circumferential direction of the stator, and the springs are mounted in the mounting holes;
one end of the spring is connected with the armature, and the other end of the spring is connected with the bottom wall of the mounting hole.
According to the electromagnetic brake and the friction plate assembly thereof provided by the embodiment of the invention, in the non-energized engineering, under the action of a spring force, a gap is formed between the stator and the armature. In the power-on engineering, the stator generates magnetic force to attract the armature, so that the spring is compressed, a gap between the stator and the armature is zero, a gap is formed between the stator and the friction plate, and as the armature and the friction plate have mutual repulsive force and the friction plate and the baffle plate have mutual repulsive force, the friction plate rotates between the armature and the baffle plate, contact friction is not generated on the end surfaces of two ends of the friction plate in the rotating process, dust, noise and abrasion caused by friction are reduced to the maximum extent, and the reliability of the electromagnetic brake is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an electromagnetic brake according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an electromagnetic brake provided by an embodiment of the present invention;
FIG. 3 is a schematic diagram of an electromagnetic brake provided in an embodiment of the invention.
Reference numerals:
1 stator 2 coil 3 friction plate 31 second magnetic piece 4 baffle 41 third magnetic piece 5 square wheel 6 armature 61 first magnetic piece 7 spring 8 connecting column
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
As shown in fig. 1 to 3, an electromagnetic brake according to an embodiment of the present invention includes a stator 1, a spring 7, and a friction plate assembly. Wherein, friction disc assembly includes: the armature 6, the friction plate 3, and the damper 4 are coaxially stacked on the motor shaft. One side of the baffle plate 4 is connected with a connecting column 8, the armature 6 is sleeved on the connecting column 8, the armature 6 can slide along the connecting column 8, and the friction plate 3 is limited between the baffle plate 4 and the armature 6; the armature 6, the friction plate 3 and the baffle plate 4 have magnetism, the armature 6 and the friction plate 3 have mutual repulsive force, and the friction plate 3 and the baffle plate 4 have mutual repulsive force. Wherein, the connection relation of friction disc subassembly and stator 1 is: one end of the spring 7 is connected with the armature 6, the other end of the spring 7 is connected with the stator 1, and a gap is formed between the stator 1 and the armature 6 in the spring stretching state; one end of the connecting column 8 is connected with the baffle plate 4, and the other end of the connecting column 8 is connected with the stator 1. In the non-energized process, a gap is formed between the stator 1 and the armature 6 by the spring force. In the power-on engineering, the stator 1 generates magnetic force to attract the armature 6, so that the spring 7 is compressed, a gap between the stator 1 and the armature 6 is zero, and a gap is formed between the stator 1 and the friction plate 3, and as the armature 6 and the friction plate 3 have mutual repulsive force and the friction plate 3 and the baffle 4 have mutual repulsive force, the friction plate 3 rotates between the armature 6 and the baffle 4, contact friction is not generated on the end surfaces of two ends of the friction plate 3 in the rotating process, dust, noise and abrasion caused by friction are reduced to the greatest extent, and reliability of the electromagnetic brake is ensured.
The stator 1 is made of magnetic metal material, such as low carbon steel with high magnetic conductivity, the stator 1 comprises a coil 2, the coil 2 is installed in the stator 1 after winding, and the coil 2 and the stator 1 can be fixed in an interference fit/injection molding manner. The axial line position of the stator 1 is also provided with a square wheel 5, the square wheel 5 can be connected with a motor shaft, the friction plate 3 is sleeved on the square wheel 5, and the friction plate 3 is limited among the armature 6, the baffle 4 and the connecting column 8. In the assembly process, after the coil 2 is assembled into the stator 1, the armature 6, the friction plate 3, the connecting column 8 and the baffle 4 are assembled at one time, and after the assembly is completed, all parts are integrated and no dispersion assembly exists. In this embodiment, the connecting posts 8 are hollow cylindrical structures or through hole screws, the connecting posts 8 are provided with a plurality of connecting posts 8, the connecting posts 8 are located in the circumferential direction of the baffle 4, and the armatures 6 are sleeved on the connecting posts 8 at the same time and can slide along the connecting posts 8.
In this embodiment, three connecting posts 8 are provided, and through holes are provided on the armature 6 at positions corresponding to the connecting posts 8 to allow the connecting posts 8 to pass through, so that the armature can slide along the connecting posts 8 under the action of spring force.
As shown in fig. 2-3, in this embodiment, a first magnetic member 61 is disposed on a side of the armature 6 near the friction plate 3; the friction plate 3 is provided with a second magnetic piece 31, and in this embodiment, the second magnetic piece 31 is equidistant from two end surfaces of the friction plate 3; a third magnetic member 41 is disposed on a side of the baffle plate 4 close to the friction plate 3. After the brake is electrified, the stator 1 generates magnetic force, one end of the stator 1 close to the armature 6 is N pole, one end of the first magnetic piece 61 close to the stator 1 is S pole, namely the magnetism of the end of the stator 1 close to the first magnetic piece 61 is opposite and can attract each other; one end of the first magnetic element 61 close to the second magnetic element 31 is an N pole, and one end of the second magnetic element 31 close to the first magnetic element 61 is an N pole, that is, the second magnetic element 31 and the first magnetic element 61 close to each other have the same magnetism and can repel each other; the end of the second magnetic element 31 close to the third magnetic element 41 is the S pole, and the end of the third magnetic element 41 close to the second magnetic element 31 is the S pole, that is, the magnetism of the end of the second magnetic element 31 close to the third magnetic element 41 is the same, and the second magnetic element and the third magnetic element 41 can repel each other. In the power-off engineering, the elastic force of the spring 7 can counteract the magnetic repulsive force and generate braking force.
In this embodiment, the end surface of the first magnetic element 61 and the end surface of the third magnetic element 41 are both coated with a wear-resistant layer, such as a nickel/chromium coating with high wear resistance, so that the friction surface obtained in this way is more wear-resistant than the surface galvanized form of the armature 6 or the baffle 4 in the prior art, and the friction coefficient is also higher, thereby improving the braking torque of the brake.
In the electromagnetic brake provided by the embodiment of the invention, the first magnetic member 61, the second magnetic member 31 and the third magnetic member 41 are magnetic ring type permanent magnets, and most of permanent magnet materials are neodymium iron boron. In other embodiments, the first magnetic member 61, the second magnetic member 31, and the third magnetic member 41 may be annular electromagnets, and the magnets may be energized to generate magnetism.
In one embodiment of the present invention, the friction plate 3 is made of a composite material, the composite material includes phenolic resin, metal fiber or glass fiber, and the second magnetic member 31 and the composite material are molded integrally, that is, the magnetic ring type permanent magnet and the material for preparing the friction plate 3 are molded into an integral structure at high temperature and high pressure. The friction plate 3 with the second magnetic member 31 is magnetized before use, and the permanent magnet is magnetized. In this embodiment, a common metal material may be used for the structure other than the stator 1 and the friction plate 3.
As shown in fig. 2, in an embodiment of the present invention, an end of the armature 6 is provided with a first annular groove, and the first magnetic member 61 is assembled with the first groove. The first magnetic part 61 is a magnetic ring type permanent magnet, is fixed with the armature 6 with the first groove into a whole through bonding, and is magnetized after bonding is finished, so that the armature 6 is assembled. One end of the baffle 4 is provided with an annular second groove, and the third magnetic member 41 is assembled with the second groove. The third magnetic part 41 is a magnetic ring type permanent magnet, is fixed into a whole with the baffle plate 4 with the second groove through bonding, and is magnetized after bonding is finished, so that the baffle plate 4 is assembled.
In addition, in the electromagnetic brake according to another embodiment of the present invention, the friction plate 3 may also be a permanent magnet, so as to achieve magnetic properties.
Or in other embodiments, the end surface of the armature 6 close to the friction plate 3 is provided with a magnetic coating; the end face, close to the friction plate 3, of the baffle plate 4 is provided with a magnetic coating; the two end surfaces of the friction plate 3 are provided with magnetic coatings. The armature 6, friction plate 3 and shutter 4 are magnetically provided in the form of a magnetic coating.
As shown in fig. 2 to 3, the electromagnetic brake provided in an embodiment of the present invention is provided with a plurality of mounting holes in the circumferential direction of the stator 1, in which springs 7 are mounted; one end of the spring 7 is connected with the bottom wall of the mounting hole, and the other end of the spring 7 is connected with the armature 6, so that a gap is reserved between the armature 6 and the stator 1 in a natural extension state of the spring 7. The spring 7 is used for realizing the return of the armature 6 under the action of the spring 7 and providing a spring force in the state of the coil 2 being in the off-state. In this embodiment, the width of the gap between the armature 6 and the stator 1 is 0.05cm-0.15cm.
In the prior art, in the electrifying engineering of the brake, the friction plate 3 may deflect in the running process due to the size problem, the friction with the armature 6 and the baffle 4 cannot be avoided in the deflection process, noise is generated, the friction plate 3 is abnormally worn, and when the friction plate 3 is worn to a certain extent, the braking performance of the brake is invalid. In order to solve the problem, based on the above technical solution, the working process of the electromagnetic brake provided in the embodiment of the invention is as follows:
When the magnetic element-free brake works, the coil 2 is electrified, the stator 1 generates electromagnetic force, and as the magnetic properties of the end, close to the armature 6, of the stator 1 are opposite and attractive to each other, the armature 6 is rapidly attracted by the stator 1, compared with the armature 6 without the magnetic element, the attraction time of the stator 1 is reduced, and the response time of the brake is shortened; the armature 6 compresses the spring 7, the gap between the armature 6 and the stator 1 becomes 0, and the friction plate 3 is constrained by the force and drives the square wheel 5 and the motor shaft to rotate freely; the second magnetic piece 31 and the first magnetic piece 61 which are arranged in the friction plate 3 are same in magnetic property and mutually repulsive at the mutually approaching ends, and the second magnetic piece 31 and the third magnetic piece 41 are same in magnetic property and mutually repulsive at the mutually approaching ends, so that the friction plate 3 rotates between the armature 6 and the baffle 4, and the two end surfaces of the friction plate 3 are prevented from generating contact friction in the rotating process; the technical problems of dust, noise and abrasion caused by friction of the friction plate 3 are reduced to the maximum extent, so that the reliability of the brake is improved.
The coil 2 is de-energized, the stator 1 loses electromagnetic force, the armature 6 is released, the spring 7 expands under the action of the spring force, the armature 6 is pushed and the armature 6 is pressed against the baffle 4. The friction plate 3 is clamped between the armature 6 and the baffle 4 to exert a braking effect, and is unfolded by spring force, the friction plate 3 rubs with the armature 6 and the baffle 4 to generate friction force, also called braking force, and the motor rotating shaft drives the square wheel 5 to stop rotating under the action of the braking force.
In the description of the present invention, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, that is, the corresponding orientations when the air conditioner is normally installed. It is used merely for convenience in describing the invention and to simplify the description and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A friction plate assembly, comprising: an armature (6), a friction plate (3) and a baffle (4) which are coaxially stacked;
One side of the baffle plate (4) is connected with a connecting column (8), the armature (6) is sleeved on the connecting column (8), the armature (6) can slide along the connecting column (8), and the friction plate (3) is limited between the baffle plate (4) and the armature (6);
The armature (6), the friction plate (3) and the baffle plate (4) have magnetism, the armature (6) and the friction plate (3) have mutual repulsive force, and the friction plate (3) and the baffle plate (4) have mutual repulsive force;
A first magnetic piece (61) is arranged on one side of the armature (6) close to the friction plate (3); the friction plate (3) is provided with a second magnetic piece (31); a third magnetic piece (41) is arranged on one side of the baffle (4) close to the friction plate (3);
The end face of the first magnetic part (61) and the end face of the third magnetic part (41) are plated with wear-resistant layers; the second magnetic piece (31) and the friction plate (3) are integrally formed;
the armature (6) is provided with an annular first groove, and the first magnetic piece (61) is assembled with the first groove; the baffle (4) is provided with an annular second groove, and the third magnetic piece (41) is assembled with the second groove.
2. A friction plate assembly according to claim 1, characterized in that the friction plate (3) is a permanent magnet.
3. A friction plate assembly as described in claim 1 wherein,
The end face, close to the friction plate (3), of the armature (6) is provided with a magnetic coating;
the end face, close to the friction plate (3), of the baffle plate (4) is provided with a magnetic coating;
and magnetic coatings are arranged on two end surfaces of the friction plate (3).
4. A friction plate assembly according to claim 1, wherein a plurality of said connection posts (8) are provided, a plurality of said connection posts (8) being located in a circumferential direction of said baffle plate (4).
5. An electromagnetic brake, characterized by comprising a stator (1), a spring (7) and a friction plate assembly according to any of claims 1-4;
One end of the spring (7) is connected with the armature (6), the other end of the spring (7) is connected with the stator (1), and a gap is formed between the stator (1) and the armature (6) in the spring stretching state;
one end of the connecting column (8) is connected with the baffle plate (4), and the other end of the connecting column (8) is connected with the stator (1).
6. An electromagnetic brake according to claim 5, wherein the gap has a width of 0.05cm to 0.15cm.
7. An electromagnetic brake according to claim 5, characterized in that the stator (1) is provided with mounting holes in the circumferential direction, in which holes the springs (7) are mounted;
one end of the spring (7) is connected with the armature (6), and the other end of the spring (7) is connected with the bottom wall of the mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910363269.9A CN110131338B (en) | 2019-04-30 | 2019-04-30 | Electromagnetic brake and friction plate assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910363269.9A CN110131338B (en) | 2019-04-30 | 2019-04-30 | Electromagnetic brake and friction plate assembly thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110131338A CN110131338A (en) | 2019-08-16 |
| CN110131338B true CN110131338B (en) | 2024-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910363269.9A Active CN110131338B (en) | 2019-04-30 | 2019-04-30 | Electromagnetic brake and friction plate assembly thereof |
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| CN (1) | CN110131338B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112196917B (en) * | 2020-10-19 | 2021-12-14 | 珠海格力电器股份有限公司 | Electromagnetic brake and motor |
| CN114542624A (en) * | 2022-01-26 | 2022-05-27 | 广东大钧机械有限公司 | Clutch assembly |
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| CN210196323U (en) * | 2019-04-30 | 2020-03-27 | 珠海格力电器股份有限公司 | Electromagnetic brake and friction plate assembly thereof |
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2019
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|---|---|---|---|---|
| US6540056B1 (en) * | 1998-01-21 | 2003-04-01 | Tesma International Inc. | Armature disk with friction material |
| WO2006033149A1 (en) * | 2004-09-24 | 2006-03-30 | I. T. O. Co., Ltd. | Electromagnetic brake device |
| DE102009034123A1 (en) * | 2009-07-20 | 2011-02-03 | Sew-Eurodrive Gmbh & Co. Kg | Electromagnetically braking and/or coupling device, has lining support comprising friction lining that cooperates with braking surface of part during braking or coupling, and permanent magnets producing eddy currents in relative moved part |
| DE102011004814A1 (en) * | 2011-02-28 | 2012-08-30 | Zf Friedrichshafen Ag | Brake unit for industrial truck, has secondary magnetic element that is arranged in magnetic field of primary magnetic element so that magnetic force is produced between magnetic elements to press brake element to rotary disc |
| CN105952819A (en) * | 2016-06-08 | 2016-09-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Electromagnetic brake |
| CN108458013A (en) * | 2018-03-23 | 2018-08-28 | 康德瑞恩电磁科技（中国）有限公司 | High magnetic horizontal permanent magnet brake |
| CN210196323U (en) * | 2019-04-30 | 2020-03-27 | 珠海格力电器股份有限公司 | Electromagnetic brake and friction plate assembly thereof |
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| Publication number | Publication date |
|---|---|
| CN110131338A (en) | 2019-08-16 |
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