CN217582958U - Electromagnetic brake and motor - Google Patents
Electromagnetic brake and motor Download PDFInfo
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- CN217582958U CN217582958U CN202221948217.1U CN202221948217U CN217582958U CN 217582958 U CN217582958 U CN 217582958U CN 202221948217 U CN202221948217 U CN 202221948217U CN 217582958 U CN217582958 U CN 217582958U
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Abstract
The utility model provides an electromagnetic brake, which comprises a friction piece, a brake piece, an electromagnet assembly, a control mechanism and a frame body; the friction piece is used for being arranged on a rotor unit of the motor; the brake piece is arranged on the control mechanism; the control mechanism is movably arranged on the frame body; the electromagnet assembly is arranged on the frame body and is connected with the control mechanism so as to drive the control mechanism to operate and enable the brake piece and the friction piece to be combined or separated; the electromagnet assembly comprises a first electromagnet and a second electromagnet, the telescopic rod of the first electromagnet and the telescopic rod of the second electromagnet are connected with the same control mechanism, and the control mechanism can drive the telescopic rods of the first electromagnet and the second electromagnet to synchronously operate. And simultaneously, the utility model also provides a motor, it includes electromagnetic brake ware. Compared with the prior art, the utility model provides a can realize the linkage between two electro-magnets in electromagnetic braking ware and the motor, made things convenient for the control to the electro-magnet.
Description
Technical Field
The utility model relates to a motor braking technical field especially relates to electromagnetic brake ware and motor.
Background
The electromagnetic brake is a mechanical device for stopping or decelerating a moving part in machinery, and has the advantages of compact structure, simplicity in operation, sensitivity in response, reliability in use, easiness in control and the like. The electromagnetic brake is mainly used in a matched manner with the motor, is usually designed and installed at the tail of the motor, and locks a rotor in the motor through the electromagnetic brake, so that the motor is braked.
The electromagnetic brake in the prior art mainly comprises an electromagnet, a friction piece and a brake piece, wherein the friction piece is arranged on a rotor unit of a motor, and the brake piece is arranged on an iron core of the electromagnet. Under the non-braking state, the braking piece and the friction piece are mutually spaced, and the electromagnetic brake can not block the normal movement of the motor at the moment. And under the braking state, the braking piece and the friction piece are combined with each other, so that the motor is braked by the friction force generated by the combination between the braking piece and the friction piece. The relative position relation between the braking piece and the friction piece is realized by driving the braking piece to correspondingly move by the electromagnet, namely, the electromagnet controls the braking piece to move to a corresponding position, thereby realizing the braking of the motor.
However, in the electromagnetic brake of the prior art, the electromagnets are independent from each other, and linkage cannot be formed between the electromagnets.
SUMMERY OF THE UTILITY MODEL
The electromagnetic brake aims at the technical problem that linkage cannot be formed among electromagnets in the electromagnetic brake in the prior art, and the control difficulty is increased. The utility model provides an electromagnetic brake, it can make and form the linkage between two electro-magnets, has made things convenient for the control to the electro-magnet.
An electromagnetic brake comprises a friction piece, a brake piece, an electromagnet assembly, a control mechanism and a frame body;
the friction piece is used for being arranged on a rotor unit of the motor;
the brake piece is arranged on the control mechanism;
the control mechanism is movably arranged on the frame body;
the electromagnet assembly is arranged on the frame body and is connected with the control mechanism to drive the control mechanism to operate so as to combine or separate the brake piece and the friction piece;
the electromagnet assembly comprises a first electromagnet and a second electromagnet, the telescopic rod of the first electromagnet and the telescopic rod of the second electromagnet are connected with the same control mechanism, and the control mechanism can drive the telescopic rods of the first electromagnet and the second electromagnet to synchronously operate.
Preferably, the electromagnet assembly further comprises an electromagnet seat mounted on the frame body, and the first electromagnet and the second electromagnet are respectively mounted on the electromagnet seat.
Preferably, the electromagnet assembly further comprises a first connecting piece and a second connecting piece, the first connecting piece is connected with the telescopic rod of the first electromagnet and the control mechanism, and the second connecting piece is connected with the telescopic rod of the second electromagnet and the control mechanism.
Preferably, the first connecting piece comprises a first connecting piece body and a first connecting column, the first connecting piece body is connected with the telescopic rod of the first electromagnet, the first connecting column is arranged on the first connecting piece body, and the first connecting column is inserted into the control mechanism;
the second connecting piece comprises a second connecting piece body and a second connecting column, the second connecting piece body is connected with the telescopic rod of the second electromagnet, the second connecting column is arranged on the second connecting piece body, and the second connecting column is inserted into the control mechanism.
Preferably, the control mechanism comprises a first adjusting seat which is rotatably and movably arranged on the frame body, and a first connecting arm and a second connecting arm are arranged on the first adjusting seat;
the first connecting arm and the second connecting arm are positioned on two opposite sides along the rotating direction of the first adjusting seat;
the first connecting column is inserted into the first connecting groove of the first connecting arm so as to drive the first adjusting seat to rotate forwards;
the second connecting column is inserted into the second connecting groove of the second connecting arm so as to drive the first adjusting seat to rotate reversely.
Preferably, the first connecting groove is concavely formed from the outer surface of the first connecting arm to the direction close to the second connecting arm;
the second connecting groove is formed by being sunken from the outer surface of the second connecting arm to the direction close to the first connecting arm.
Preferably, the control mechanism further comprises a control rod, the control rod is connected with the first adjusting seat, the brake piece is installed on the control rod, and the control rod can be driven by the first adjusting seat to move, so that the brake piece is combined with or separated from the friction piece.
Preferably, the control mechanism further comprises a second adjusting seat and an elastic driving member, the second adjusting seat is fixedly mounted on the frame body, and the first adjusting seat is rotatably and movably mounted on the second adjusting seat;
two ends of the elastic driving piece are respectively connected with the second adjusting seat and the control rod, so that the braking piece is combined with the friction piece.
Preferably, the control rod penetrates through the first adjusting seat and the second adjusting seat, and the elastic driving piece is sleeved on the control rod.
An electric machine comprising an electric machine body and an electromagnetic brake as claimed in any one of the above;
the friction piece is installed in the rotor unit of the motor body, and the frame body is installed in the stator unit of the motor body.
Compared with the prior art, the electromagnetic brake provided by the utility model comprises a friction piece, a brake piece, an electromagnet assembly, a control mechanism and a frame body; the friction piece is used for being arranged on a rotor unit of the motor; the brake piece is arranged on the control mechanism; the control mechanism is movably arranged on the frame body; the electromagnet assembly is arranged on the frame body and is connected with the control mechanism to drive the control mechanism to operate so as to combine or separate the brake piece and the friction piece; the electromagnet assembly comprises a first electromagnet and a second electromagnet, the telescopic rod of the first electromagnet and the telescopic rod of the second electromagnet are connected with the same control mechanism, and the control mechanism can drive the telescopic rods of the first electromagnet and the second electromagnet to synchronously operate. In the electromagnetic brake, the telescopic rod of the first electromagnet and the telescopic rod of the second electromagnet are connected with the same control mechanism, so that when the electromagnet assembly runs, only a signal is applied to the first electromagnet or the second electromagnet, and then the other electromagnet can be driven to run synchronously, linkage can be formed between the two electromagnets, the control process is simpler, and the control of the electromagnets is facilitated.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic perspective view of a motor according to an embodiment;
fig. 2 is a schematic cross-sectional view of the motor shown in fig. 1;
FIG. 3 is an enlarged view of a portion of area A shown in FIG. 2;
FIG. 4 is a schematic perspective view of a portion of the components of the electromagnetic brake in the motor shown in FIG. 1;
FIG. 5 is a perspective view of a portion of the components of the structure shown in FIG. 4;
FIG. 6 is a perspective view of a portion of the components of the structure of FIG. 4;
FIG. 7 is a schematic perspective view of the first adjusting seat shown in FIG. 3;
FIG. 8 is a schematic perspective view of the second adjustment base shown in FIG. 3;
fig. 9 is a schematic perspective view of a motor according to another embodiment;
fig. 10 is a schematic cross-sectional view of the motor shown in fig. 9.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It will be understood that when an element is referred to as being "secured to," "mounted to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element; when an element is "connected" to another element, or is referred to as being "connected" to another element, it can be directly connected or indirectly connected to the other element.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the practical limit conditions of the present application, so that the modifications of the structures, the changes of the ratio relationships, or the adjustment of the sizes, do not have the technical essence, and the modifications, the changes of the ratio relationships, or the adjustment of the sizes, are all within the scope of the technical contents disclosed in the present application without affecting the efficacy and the achievable purpose of the present application.
The utility model provides an electromagnetic brake, which comprises a friction piece, a brake piece, an electromagnet assembly, a control mechanism and a frame body; the friction piece is used for being arranged on a rotor unit of the motor; the brake piece is arranged on the control mechanism; the control mechanism is movably arranged on the frame body; the electromagnet assembly is arranged on the frame body and is connected with the control mechanism to drive the control mechanism to operate so as to combine or separate the brake piece and the friction piece; the electromagnet assembly comprises a first electromagnet and a second electromagnet, the telescopic rod of the first electromagnet and the telescopic rod of the second electromagnet are connected with the same control mechanism, and the control mechanism can drive the telescopic rods of the first electromagnet and the second electromagnet to synchronously operate. Linkage can be realized between two electromagnets in the electromagnetic brake, so that the electromagnets can be conveniently controlled.
Example one
Please refer to fig. 1 to 8. The present embodiment provides an electromagnetic brake 100, which includes a friction member 10, a braking member 20, an electromagnet assembly 30, a control mechanism 40 and a frame 50. The friction member 10 is configured to be mounted on a rotor unit of an electric motor, the brake member 20 is mounted on the control mechanism 40, and the control mechanism 40 is movably mounted on the frame 50. Wherein, the movable installation of the control mechanism 40 on the frame body 50 means: the control mechanism 40 is mounted on the frame 50, and the control mechanism 40 is movable (movable and/or rotatable) relative to the frame 50 after receiving a driving force. The electromagnet assembly 30 is installed on the frame body 50, and the electromagnet assembly 30 is connected to the control mechanism 40 to drive the control mechanism 40 to operate, so that the brake member 20 is combined with or separated from the friction member 10. Wherein, the electromagnet assembly 30 drives the control mechanism 40 to operate, which refers to: the electromagnet assembly 30 is used for providing a driving force to drive the control mechanism 40 to move and/or rotate, so that the control mechanism 40 drives the position of the braking member 20 to change, the braking member 20 is combined with or separated from the friction member 10, and the braking of the rotor unit of the motor can be realized. The brake member 20 in combination with the friction member 10 means: the braking member 20 contacts with the friction member 10, so that a frictional resistance is generated between the braking member 20 and the friction member 10, and the rotation of the rotor unit of the motor is limited, thereby realizing the braking of the rotor unit of the motor.
The electromagnet assembly 30 comprises a first electromagnet 31 and a second electromagnet 32, the telescopic rod 311 of the first electromagnet and the telescopic rod 321 of the second electromagnet are connected with the same control mechanism 40, and the control mechanism 40 can drive the telescopic rod 311 of the first electromagnet and the telescopic rod 321 of the second electromagnet to synchronously operate. That is the telescopic link 311 of first electro-magnet the telescopic link 321 of second electro-magnet is connected with same part, makes first electro-magnet 31 the second electro-magnet 32 control mechanism 40 constitutes an holistic part, when arbitrary one electro-magnet drive control mechanism 40 moves, control mechanism 40 can drive the synchronous operation of another electro-magnet equally, only needs during the control input a control signal can realize the control to two electro-magnets operation for can form the linkage between two electro-magnets, let control process simple more, convenient.
Specifically, in this embodiment, the first electromagnet 31 and the second electromagnet 32 are respectively used for driving the control mechanism 40 to rotate. The first electromagnet 31 is used for driving the control mechanism 40 to rotate in the forward direction, and the second electromagnet 32 is used for driving the control mechanism 40 to rotate in the reverse direction. When the first electromagnet 31 is powered on, the telescopic rod 311 of the first electromagnet extends out, so as to drive the control mechanism 40 to rotate in the forward direction; when the control mechanism 40 rotates, the control mechanism simultaneously acts on the second electromagnet 32, so that the telescopic rod 321 of the second electromagnet retracts. When the second electromagnet 32 is powered, the telescopic rod 321 of the second electromagnet extends out, so as to drive the control mechanism 40 to rotate in the reverse direction; similarly, when the control mechanism 40 rotates, it will simultaneously act on the first electromagnet 31, so that the telescopic rod 311 of the first electromagnet retracts. Forward rotation and reverse rotation refer to two opposite directions of rotation, e.g., clockwise in one embodiment, and counterclockwise in the other embodiment. In one embodiment, when the forward rotation is counterclockwise, the reverse rotation is clockwise.
More specifically, in this embodiment, when the first electromagnet 31 drives the control mechanism 40 to rotate forward to a certain position, the control mechanism 40 drives the braking member 20 to combine with the friction member 10, so as to achieve braking. When the second electromagnet 32 drives the control mechanism 40 to rotate reversely to a certain position, the control mechanism 40 drives the brake member 20 to separate from the friction member 10, so as to unlock the brake member.
It can be understood that in the electromagnetic brake in the prior art, the electromagnets are independent from each other, and cannot be linked, so that the control difficulty is increased. Meanwhile, the electromagnet can only control the brake piece to rapidly move along one direction, and the direction opposite to the direction needs to be slowly reset through the elastic force of the elastic piece, so that the unlocking or braking timeliness is influenced, and the arrangement of components in the electromagnetic brake is limited.
In the electromagnetic brake 100 provided in this embodiment, the electromagnet assembly 30 and the control mechanism 40 are connected to form an integral structure, so that the first electromagnet 31 and the second electromagnet 32 can be linked. And when the unlocking or braking is carried out, the second electromagnet 32 and the first electromagnet 31 are independently electrified, so that the control is simpler, the telescopic rod of the other electromagnet can be quickly retracted, the normal unlocking or braking cannot be influenced, and the unlocking and braking speed and stability are better guaranteed. Meanwhile, the first electromagnet 31 and the second electromagnet 32 can control the control mechanism 40 to rotate in two opposite directions through the structure, and the control mechanism 40 is controlled to rotate to different direction angles to realize unlocking or braking.
Preferably, the electromagnet assembly 30 further includes an electromagnet seat 33 installed on the frame body 50, and the first electromagnet 31 and the second electromagnet 32 are respectively installed on the electromagnet seat 33. Therefore, with the structure, the first electromagnet 31 and the second electromagnet 32 can be better fixedly mounted on the frame body 50, so that the whole structure is more compact and reliable.
Preferably, the electromagnet assembly 30 further includes a first connecting member 34 and a second connecting member 35, where the first connecting member 34 connects the telescopic rod 311 of the first electromagnet with the control mechanism 40, that is, the telescopic rod 311 of the first electromagnet is connected with the control mechanism 40 through the first connecting member 34. The second connecting member 35 connects the telescopic rod 321 of the second electromagnet with the control mechanism 40, that is, the telescopic rod 321 of the second electromagnet is connected with the control mechanism 40 through the second connecting member 35. Therefore, by adopting the structure, the connection stability between the first electromagnet 31 and the control mechanism 40 and the connection stability between the second electromagnet 32 and the control mechanism 40 are better guaranteed, and the arrangement of the first electromagnet 31 and the second electromagnet 32 is also facilitated.
Preferably, the first connecting member 34 includes a first connecting member body 341 and a first connecting column 342, the first connecting member body 341 is connected to the telescopic rod 311 of the first electromagnet, the first connecting column 342 is disposed on the first connecting member body 341, and the first connecting column 342 is inserted into the control mechanism 40. The second connecting member 35 includes a second connecting member body 351 and a second connecting column 352, the second connecting member body 351 is connected to the telescopic rod 321 of the second electromagnet, the second connecting column 352 is disposed on the second connecting member body 351, and the second connecting column 351 is inserted into the control mechanism 40. Therefore, when the first electromagnet 31 is powered on, the first connecting member body 341 can be driven to move by the extension of the telescopic rod 311 of the first electromagnet, and the first connecting column 342 on the first connecting member body 341 can drive the control mechanism 40 to rotate in the forward direction in the moving process, and the telescopic rod 321 of the second electromagnet can be driven to correspondingly retract while the control mechanism 40 rotates. When the second electromagnet 31 is powered on, the telescopic rod 321 of the second electromagnet can stretch to drive the second connecting piece body 351 to move, and the second connecting column 352 on the second connecting piece body 351 can drive the control mechanism 40 to rotate in the opposite direction in the moving process, and the telescopic rod 311 of the first electromagnet can be correspondingly retracted while the control mechanism 40 rotates. In this embodiment, the first connecting column 342 is inserted into the control mechanism 40, and the second connecting column 352 is inserted into the control mechanism 40, so that the non-rigid connection between the first connecting piece 34, the second connecting piece 35 and the control mechanism 40 is realized, the driving of the electromagnet assembly 30 on the control mechanism 40 is better ensured, and the reliability of operation is ensured.
Preferably, the control mechanism 40 includes a first adjusting seat 41 rotatably and movably mounted on the frame body 50, wherein the rotatably and movably mounting means: the first adjusting seat 41 is mounted on the frame body 50, and the first adjusting seat 41 can rotate relative to the frame body 50, and in the rotating process, the first adjusting seat 41 can also linearly move along the axial direction of the rotating central shaft. That is, the first adjustment seat 41 is driven to rotate, so that the rotational motion can be converted into the linear motion.
The first adjusting base 41 is provided with a first connecting arm 411 and a second connecting arm 412, and the first connecting arm 411 and the second connecting arm 412 are located on two opposite sides along the rotation direction of the first adjusting base 41. The first connecting column 342 is inserted into the first connecting groove 4111 of the first connecting arm 411 to drive the first adjusting seat 41 to rotate in the forward direction, that is, the first electromagnet 31 is used to provide a driving force to drive the first adjusting seat 41 to rotate in the forward direction through the first connecting column 342. The second connecting column 352 is inserted into the second connecting groove 4121 of the second connecting arm 412 to drive the first adjusting base 41 to rotate reversely, that is, the second electromagnet 32 is used to provide driving force to drive the first adjusting base 41 to rotate reversely through the second connecting column 352. Therefore, with the structure, the control mechanism 40 can be controlled more simply by the first connecting piece 34 and the second connecting piece 35, and the whole structure is simpler and more compact.
Preferably, the first connecting groove 4111 is concavely formed from an outer surface 4112 of the first connecting arm 411 to a direction approaching to the second connecting arm 412, wherein the outer surface 4112 of the first connecting arm refers to a side surface of the first connecting arm 411 away from the second connecting arm 412. The second connection groove 4121 is formed by recessing from an outer surface 4122 of the second connection arm 412 toward the first connection arm 411, wherein the outer surface 4122 of the second connection arm refers to a side surface of the second connection arm 412 away from the first connection arm 411. Therefore, by the structure, the installation between the electromagnet assembly 30 and the control mechanism 40 can be facilitated, and the installation difficulty among the first connecting piece 34, the second connecting piece 35 and the first adjusting seat 41 is reduced.
Preferably, the control mechanism 40 further comprises a control rod 42, the control rod 42 is connected with the first adjusting seat 41, the brake member 20 is mounted on the control rod 42, and the control rod 42 can be moved by the first adjusting seat 41 to combine or separate the brake member 20 with or from the friction member 10. That is, in this embodiment, the brake member 20 and the friction member 10 are directly coupled or decoupled by the linear movement of the control rod 42, so as to achieve braking or unlocking. Specifically, the electromagnet assembly 30 drives the first adjusting seat 41 to rotate, so that the rotating motion is converted into a linear motion in the rotating process of the first adjusting seat 41, and the control rod 42 is driven to move, thereby controlling the position of the brake element 20.
It can be understood that in the electromagnetic brake in the prior art, the brake piece is directly driven to linearly move by the electromagnet, so that unlocking and braking are realized. When the motor has a load, unlocking and braking are very difficult, and even unlocking and braking cannot be successfully performed. If when the motor is applied to the wheels of the wheelchair, the rotor unit of the motor is in a rotating state in the process of the wheelchair, and the electromagnet drives the braking piece to move linearly, so that the braking piece can not be normally combined with the friction piece, the braking failure is caused, and even the damage of the electromagnet can be caused. In the electromagnetic brake 100 provided by this embodiment, the control mechanism 40 is arranged, and the electromagnet assembly 30 controls the rotation of the control mechanism 40, so that the control mechanism 40 converts the rotation motion into a linear motion, and then drives the brake piece 20 to move, thereby unlocking and braking. The whole control process is smoother, the unlocking and braking effectiveness can be better guaranteed, and the damage to the electromagnet is better avoided.
Preferably, the control mechanism 40 further includes a second adjusting seat 43 and an elastic driving element 44, the second adjusting seat 43 is fixedly installed on the frame body 50, and the first adjusting seat 41 is rotatably and movably installed on the second adjusting seat 43, that is, in this embodiment, the first adjusting seat 41 is indirectly rotatably and movably installed on the frame body 50. The two ends of the elastic driving element 44 are respectively connected to the second adjusting seat 43 and the control rod 42, so as to combine the brake element 20 with the friction element 10. Wherein the resilient drive member 44 is referred to as: can be elastically deformed after being stressed, and can restore the component in the initial state after the stress is reduced or eliminated. In the present embodiment, the elastic driving member 44 is embodied as a spring. It can be understood that by providing the elastic driving member 44, the elastic driving member 44 can apply force to the control rod 42, so that the braking member 20 can be continuously combined with the friction member 10, and the first electromagnet 31 is not required to be continuously electrified to maintain the braking state, thereby saving electric energy and prolonging the service life of the electromagnet.
In this embodiment, the specific structure of the first adjusting seat 41 rotatably and movably mounted on the second adjusting seat 43 is as follows: the first adjusting seat 41 and the second adjusting seat 43 are respectively provided with a sliding groove 45, and a ball 46 is arranged in the sliding groove 45. The sliding groove 45 extends along the rotation direction of the first adjusting seat 41, and the depth of the sliding groove 45 increases or decreases along the rotation direction of the first adjusting seat 41. So that the relative distance between the second regulation seat 43 and the first regulation seat 41 is closer when the ball 46 is located in the deeper region of the sliding groove 45; when the first adjusting seat 41 rotates, the ball 46 gradually moves in the sliding groove 45, and the ball 46 gradually moves toward the region of the sliding groove 45 with a shallow depth, so that two opposite points of the ball 46 respectively abut against and limit the first adjusting seat 41 and the second adjusting seat 43, so that the ball 46 extrudes and drives the first adjusting seat 41 to move, and the relative distance between the second adjusting seat 43 and the first adjusting seat 41 gradually increases, thereby converting the rotational motion of the first adjusting seat 41 into linear motion. Of course, in other embodiments, the specific structure of the first adjusting seat 41 rotatably and movably mounted on the second adjusting seat 43 may also adopt other required structures, for example, a slope structure is disposed between the first adjusting seat 41 and the second adjusting seat 43, and the slope structure is used to guide the first adjusting seat 41 to linearly move in the rotating process, or a screw rod and other structural schemes may be adopted between the first adjusting seat 41 and the second adjusting seat 43. In the embodiment, the sliding groove 45 and the ball 46 are adopted, so that the ball 46 is in point contact with the first adjusting seat 41 and the second adjusting seat 43, the required machining precision is low, and the machining difficulty is effectively reduced.
Preferably, the control rod 42 penetrates through the first adjusting seat 41 and the second adjusting seat 43, and the elastic driving member 44 is sleeved on the control rod 42. Thereby through this kind of structure, let overall structure compacter, also can be better carry out more accurate control to the atress direction simultaneously.
Example two
Please refer to fig. 1 to fig. 3. The embodiment provides an electric motor, which includes a motor body 200 and an electromagnetic brake, wherein the electromagnetic brake can adopt the electromagnetic brake 100 provided in the first embodiment.
The friction member 10 is mounted to the rotor unit 210 of the motor body 200, and the holder 50 is mounted to the stator unit 220 of the motor body 200.
Specifically, in this embodiment, the motor body 200 is an inner rotor motor, that is, the shaft of the motor body 200 is a rotatable structure, and the friction member 10 is mounted on the shaft of the motor body 200.
EXAMPLE III
Please refer to fig. 9 and fig. 10 in combination. The embodiment provides an electric motor, which includes an electric motor body 300 and an electromagnetic brake, wherein the electromagnetic brake may adopt the electromagnetic brake 100 provided in the embodiment.
The friction member 10 is mounted to the rotor unit 310 of the motor body 300, and the frame 50 is mounted to the stator unit 320 of the motor body 300.
Specifically, in this embodiment, the motor body 300 is a hub motor, that is, the shaft of the motor body 300 is a fixed structure, the hub of the motor body 300 is a rotatable structure, the friction member 10 is mounted on the hub of the motor body 200, and the frame 50 is mounted on the shaft of the motor body 300.
Example four
The embodiment provides an electric vehicle, and the motor provided in the second embodiment or the third embodiment is mounted on a wheel body of the electric vehicle.
The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.
Claims (10)
1. An electromagnetic brake is characterized by comprising a friction piece, a brake piece, an electromagnet assembly, a control mechanism and a frame body;
the friction piece is used for being arranged on a rotor unit of the motor;
the brake piece is arranged on the control mechanism;
the control mechanism is movably arranged on the frame body;
the electromagnet assembly is arranged on the frame body and is connected with the control mechanism so as to drive the control mechanism to operate, so that the brake piece is combined with or separated from the friction piece;
the electromagnet assembly comprises a first electromagnet and a second electromagnet, the telescopic rod of the first electromagnet and the telescopic rod of the second electromagnet are connected with the same control mechanism, and the control mechanism can drive the telescopic rods of the first electromagnet and the second electromagnet to synchronously operate.
2. The electromagnetic brake of claim 1, wherein the electromagnet assembly further comprises an electromagnet base mounted to the frame, and the first electromagnet and the second electromagnet are mounted to the electromagnet base, respectively.
3. The electromagnetic brake of claim 1 or 2, wherein the electromagnet assembly further comprises a first connecting member and a second connecting member, the first connecting member connects the telescoping rod of the first electromagnet with the control mechanism, and the second connecting member connects the telescoping rod of the second electromagnet with the control mechanism.
4. The electromagnetic brake of claim 3, wherein the first connecting member comprises a first connecting member body and a first connecting post, the first connecting member body is connected with the telescopic rod of the first electromagnet, the first connecting post is arranged on the first connecting member body, and the first connecting post is inserted into the control mechanism;
the second connecting piece comprises a second connecting piece body and a second connecting column, the second connecting piece body is connected with the telescopic rod of the second electromagnet, the second connecting column is arranged on the second connecting piece body, and the second connecting column is inserted into the control mechanism.
5. The electromagnetic brake of claim 4, wherein the control mechanism comprises a first adjusting seat rotatably and movably mounted on the frame body, and the first adjusting seat is provided with a first connecting arm and a second connecting arm;
the first connecting arm and the second connecting arm are positioned on two opposite sides along the rotating direction of the first adjusting seat;
the first connecting column is inserted into the first connecting groove of the first connecting arm so as to drive the first adjusting seat to rotate forwards;
the second connecting column is inserted into the second connecting groove of the second connecting arm to drive the first adjusting seat to rotate reversely.
6. The electromagnetic brake according to claim 5, wherein the first connecting groove is concavely formed from an outer surface of the first connecting arm toward a direction close to the second connecting arm;
the second connecting groove is formed by being sunken from the outer surface of the second connecting arm to the direction close to the first connecting arm.
7. The electromagnetic brake of claim 5, wherein the control mechanism further comprises a control rod, the control rod is connected to the first adjusting seat, the brake member is mounted on the control rod, and the control rod can be moved by the first adjusting seat to engage or disengage the brake member with or from the friction member.
8. The electromagnetic brake according to claim 7, wherein the control mechanism further comprises a second adjusting seat and an elastic driving member, the second adjusting seat is fixedly mounted on the frame body, and the first adjusting seat is rotatably and movably mounted on the second adjusting seat;
and two ends of the elastic driving piece are respectively connected with the second adjusting seat and the control rod so as to combine the brake piece with the friction piece.
9. The electromagnetic brake of claim 8, wherein the control rod passes through the first adjusting seat and the second adjusting seat, and the elastic driving member is sleeved on the control rod.
10. An electric machine comprising an electric machine body and an electromagnetic brake according to any one of claims 1 to 9;
the friction piece is installed in the rotor unit of the motor body, and the frame body is installed in the stator unit of the motor body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221948217.1U CN217582958U (en) | 2022-07-26 | 2022-07-26 | Electromagnetic brake and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221948217.1U CN217582958U (en) | 2022-07-26 | 2022-07-26 | Electromagnetic brake and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217582958U true CN217582958U (en) | 2022-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221948217.1U Active CN217582958U (en) | 2022-07-26 | 2022-07-26 | Electromagnetic brake and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217582958U (en) |
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2022
- 2022-07-26 CN CN202221948217.1U patent/CN217582958U/en active Active
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