CN217481805U - Brake and motor and automation equipment with same - Google Patents

Abstract

The utility model provides a stopper and have its motor and automation equipment. Wherein, the stopper includes: the base is sleeved on the motor shaft; the electromagnetic assembly is arranged on the base and is not sleeved on the motor shaft; the brake assembly is sleeved on the motor shaft; the moving assembly is movably arranged between the braking assembly and the electromagnetic assembly; the elastic component is arranged between the electromagnetic component and the moving component; and/or the elastic component is arranged between the base and the moving component; and/or the elastic assembly is arranged between the moving assembly and the braking assembly, and the elastic assembly is provided with a braking position critical point for enabling the braking assembly to be in a braking state and a non-braking position critical point for enabling the braking assembly to be in a non-braking state. The utility model discloses technical scheme can the effectual central axial magnetic field that the solution stopper produced to reduce or eliminate the influence of axial magnetic field to encoder magnetic induction, the reliability and the stability of effectual improvement encoder operation.

Description

Brake and motor and automation equipment with same

Technical Field

The utility model relates to a braking equipment field particularly, relates to a stopper and have its motor and automation equipment.

Background

A brake is a device having a braking function, and has a function of decelerating, stopping, or maintaining a stopped state of a moving mechanism such as a motor. In a motor including a brake, the brake is used for braking the motor and maintaining a required position state, and a magnetic encoder is usually selected in the motor to measure an operation position and accuracy of the motor. In the prior art, when the brake works, a strong magnetic field is generated in the axial direction of a motor shaft, which has an adverse effect on the performance of a magnetic encoder, so that the measurement performance of the encoder is reduced, and the performance of the overall brake motor is also adversely affected.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a stopper and have its motor and automation equipment, the utility model discloses technical scheme can the effectual central axial magnetic field that the solution stopper produced to reduce or eliminate the influence of axial magnetic field to encoder magnetic induction, the reliability and the stability of effectual improvement encoder operation

In order to achieve the above object, according to an aspect of the present invention, there is provided a brake applied to a motor, the motor including a motor shaft, the brake including: the base is sleeved on the motor shaft; the electromagnetic assembly is arranged on the base and is not sleeved on the motor shaft; the braking component is sleeved on the motor shaft and is in a braking state of the braking motor shaft or in a non-braking state of enabling the motor shaft to rotate; the moving assembly is movably arranged between the braking assembly and the electromagnetic assembly; the elastic component is arranged between the electromagnetic component and the moving component; and/or the elastic component is arranged between the base and the moving component; and/or the elastic assembly is arranged between the moving assembly and the braking assembly, and the elastic assembly is provided with a braking position critical point for enabling the braking assembly to be in a braking state and a non-braking position critical point for enabling the braking assembly to be in a non-braking state.

Further, the electromagnetic assembly comprises a magnetic yoke, an excitation coil is arranged on the magnetic yoke, the magnetic yoke is arranged on the end face of the base, and/or at least one mounting groove is formed in the end face of the base, and at least one magnetic yoke is arranged in the mounting groove.

Further, the number of the magnetic yokes is N, N is a positive integer greater than or equal to 2, the N magnetic yokes are uniformly arranged at intervals in the circumferential direction of the motor shaft, and/or the N magnetic yokes are uniformly arranged in groups in the circumferential direction of the motor shaft.

Furthermore, the magnetic yoke and the base are made of magnetic conductive materials, or the magnetic yoke is made of magnetic conductive materials, and the surface of the base is provided with a magnetic conductive material layer.

Furthermore, the brake also comprises a fixed sleeve arranged on the base, at least one magnetic yoke is arranged in the fixed sleeve, the fixed sleeve is used for positioning the magnetic yoke, and/or a first fastener is arranged on the end face of the base, a second fastener is arranged on one side, close to the base, of the magnetic yoke, and the first fastener and the second fastener are connected or matched with each other to fix the at least one magnetic yoke on the base.

Further, the brake comprises at least two magnetic yokes, and the excitation coils of two adjacent magnetic yokes are connected in series or in parallel or are independently arranged.

Furthermore, be provided with first recess or first fixed knot on the removal subassembly, elastic component and first fixed knot construct or first recess cooperation and be connected, and/or, be provided with second recess or second fixed knot structure on the base, elastic component and second fixed knot construct or second recess cooperation and be connected, and/or, the stopper still includes fixed cover, is provided with third recess or third fixed knot structure on the fixed cover, elastic component and third recess or third fixed knot construct the cooperation and be connected, and/or, electromagnetic component is provided with fourth recess or fourth fixed knot structure, elastic component and fourth recess or fourth fixed knot construct the cooperation and be connected.

Further, the elastic component is arranged on one side, away from the braking component, of the moving component, the maximum distance between one end, facing the base, of the elastic component and the moving component is not larger than the maximum axial length of the free state of the elastic component, and/or the elastic component is arranged on one side, facing the braking component, of the moving component, and the maximum distance between one end, facing the braking component, of the elastic component and the moving component is not larger than the maximum axial length of the free state of the elastic component.

Furthermore, the brake assembly comprises a transmission hub arranged on the motor shaft, the transmission hub and the motor shaft synchronously rotate, and a dynamic friction assembly arranged between the transmission hub and the moving assembly and parallel to the moving assembly, wherein the center of the dynamic friction assembly is provided with a first through hole matched with the appearance of the transmission hub; and the static friction component is arranged on one side, far away from the moving component, of the transmission hub, is parallel to the moving component and is fixedly connected with the base.

Furthermore, the stopper still includes the guide, and guide one end sets up on the base or sets up on the electromagnetism subassembly, and the other end setting of guide is on the static friction subassembly.

Further, the moving assembly is provided with a third through hole or a first guide groove matched with the guide piece, and the dynamic friction assembly is provided with a fourth through hole or a second guide groove matched with the guide piece.

Furthermore, one end of the guide piece facing the base is a first end, one end of the guide piece facing the brake assembly is a second end, the brake further comprises a cover body arranged on one side of the brake assembly far away from the moving assembly, the cover body is detachably connected with the base or the brake assembly, wherein the first end of the guide piece is integrally formed with the electromagnetic assembly and/or the base, the second end of the guide piece is fixedly connected or embedded with the brake assembly and/or the cover body, and/or the first end of the guide piece is fixedly connected with the electromagnetic assembly and/or the base, the second end of the guide piece is fixedly connected or integrally formed with the brake assembly and/or the cover body, and/or the brake further comprises a fixing sleeve, the first end of the guide piece is integrally formed with the fixing sleeve, the second end of the guide piece is fixedly connected or embedded with the brake assembly and/or the cover body, and/or the brake further comprises a fixing sleeve, the first end of the guide piece is fixedly connected with the fixed sleeve, the second end of the guide piece is fixedly connected or integrally formed with the brake component and/or the cover body, and/or the electromagnetic component is integrally formed or fixedly connected with the base.

Furthermore, the brake also comprises a heat dissipation assembly, wherein the heat dissipation assembly is heat dissipation glue wrapping the magnet yoke; or the heat dissipation assembly is a first heat dissipation rubber sleeve which is independently sleeved on the surface of each magnetic yoke with the excitation coil; or the heat dissipation assembly is a second heat dissipation rubber sleeve which is independently sleeved on the surface of each magnet yoke with the excitation coil, the second heat dissipation rubber sleeve is provided with a second accommodating groove, and the magnet yoke with the excitation coil is positioned in the second accommodating groove; or the heat radiation assembly is a heat radiation structure which is integrally formed with the base and is provided with a third accommodating groove, the magnet yoke is positioned in the third accommodating groove, and the third accommodating groove is matched with the outer contour of the magnet yoke with the magnet exciting coil.

Further, the stopper and the front end housing or the rear end housing fixed connection of motor, or, the stopper still includes the support, and the stopper passes through support and motor fixed connection, or the motor includes the casing and sets up the organism in the casing, the stopper setting in the casing and with organism or shells inner wall fixed connection, or, the motor includes the rear end housing, base and rear end housing integrated into one piece.

According to another aspect of the utility model, a motor is provided, include: the brake comprises a motor main body, a motor shaft and a brake, wherein the brake is the brake; the motor shaft passes through the brake to be in a braking position or a non-braking position.

According to the utility model discloses an on the other hand provides an automation equipment, include: the brake is the brake; the rotating assembly passes through the brake to be in a braking position or a non-braking position.

Use the technical scheme of the utility model, when the stopper circular telegram, the electromagnetic component produces the magnetic field, and the magnetic force that the magnetic field produced makes the removal subassembly keep in non-braking position, and the stopper is in non-braking state this moment, and the motor shaft of motor can rotate. When the motor shaft needs to be braked, the brake is powered off, the moving assembly moves towards the braking position under the action of the elastic restoring force of the elastic assembly, the brake is in a braking state at the moment, and the motor shaft stops rotating. The utility model discloses technical scheme can the effectual central axial magnetic field that the solution stopper produced to reduce or eliminate the influence of axial magnetic field to encoder magnetic induction, the reliability and the stability of effectual improvement encoder operation. In addition, the elastic assembly is in a compression state or a stretching state when the brake is powered on, the moving assembly is in a non-braking position under the traction of the elastic assembly, and when the brake is powered off, the moving assembly moves towards the braking position under the action of the elastic restoring force of the elastic assembly and is in the braking position through the pushing of the elastic assembly, so that the braking on the motor shaft is realized, the structure is simple, and the effect is stable.

Drawings

The accompanying drawings, which form a part of the present application, 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 and not to limit the invention. In the drawings:

figure 1 shows an exploded schematic view of an embodiment of a brake according to the present invention;

FIG. 2 shows a perspective view of the brake of FIG. 1; and

fig. 3 shows a longitudinal section of the brake of fig. 1.

Wherein the figures include the following reference numerals:

10. a motor shaft; 20. an electromagnetic assembly; 21. a magnetic yoke; 22. a field coil; 30. a brake assembly; 31. a transmission hub; 32. a dynamic friction component; 33. a static friction component; 40. a moving assembly; 50. an elastic component; 60. a base; 70. heat dissipation glue; 80. a guide member.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.

As shown in fig. 1 to 3, the brake of the present application is applied to a motor including a motor shaft 10, and includes: the base 60, the at least one solenoid assembly 20, the braking assembly 30, the moving assembly 40, and the resilient assembly 50. Wherein, the base 60 is sleeved on the motor shaft 10; at least one electromagnetic assembly 20 disposed on the base 60 and not sleeved on the motor shaft 10; the braking component 30 is sleeved on the motor shaft 10, and the braking component 30 is in a braking state for braking the motor shaft 10 or in a non-braking state for rotating the motor shaft 10; the moving assembly 40 is movably disposed between the braking assembly 30 and the electromagnetic assembly 20; the elastic assembly 50 is disposed between the solenoid assembly 20 and the moving assembly 40; the resilient assembly 50 has a braking position threshold that places the brake assembly 30 in a braking state and a non-braking position threshold that places the brake assembly 30 in a non-braking state.

By applying the technical solution of the present embodiment, when the brake is powered on, the electromagnetic assembly 20 generates a magnetic field, and the magnetic force generated by the magnetic field makes the moving assembly 40 in the non-braking position, at this time, the brake is in the non-braking state, and the motor shaft 10 of the motor can rotate. When it is required to brake the motor shaft, the brake is de-energized, and at this time, the moving assembly 40 is moved toward the braking position by the elastic restoring force of the elastic assembly 50, so that the brake is in a braking state and the motor shaft 10 stops rotating. The utility model discloses technical scheme can the effectual central axial magnetic field that the solution stopper produced to reduce or eliminate the influence of axial magnetic field to encoder magnetic induction, the reliability and the stability of effectual improvement encoder operation. In addition, the elastic component 50 is in a compressed state when the brake is powered on, the moving component 40 is in a non-braking position under the traction of the elastic component 50, when the brake is powered off, the moving component 40 moves towards the braking position under the action of the elastic restoring force of the elastic component 50, and is in the braking position through the pushing of the elastic component 50, so that the braking on the motor shaft 10 is realized, the structure is simple, and the effect is stable.

Of course, in other embodiments not shown in the figures, the elastic member 50 is disposed between the base 60 and the moving member 40. Alternatively, the elastic member 50 may be disposed between the moving member 40 and the braking member 30. Both the above two modes can drive the position of the moving assembly 40 by switching on and off the brake and pulling the elastic assembly, so that the moving assembly 40 moves between a non-braking position critical point far away from the braking assembly 30 and a braking position critical point abutting against the braking assembly 30, and the brake can generate a braking effect on the motor shaft 10.

The moving member 40 is an armature.

As shown in fig. 1 to 3, the electromagnetic assembly 20 includes a yoke 21, the yoke 21 is provided with an excitation coil 22, and the yoke 21 is provided on an end surface of the base 60. Specifically, in this embodiment, the yoke 21 is disposed on the end surface of the base 60 close to the moving assembly 40, so that the electromagnetic assembly 20 is firmly fixed, the heat dissipation effect between the electromagnetic assemblies is better, and the braking performance of the brake is improved.

Of course, in other embodiments not shown in the drawings, at least one mounting groove may be provided on the end surface of the base 60, and at least one yoke 21 is disposed in the mounting groove. This way can facilitate the installation of yoke 21 and base 60, shorten the whole size of stopper, make the structure of stopper compacter, the installation space that needs is littleer.

As shown in fig. 1 to 3, in the present embodiment, the electromagnet assembly 20 includes N yokes 21 and an exciting coil 22 disposed on the yokes 21, where N is a positive integer greater than or equal to 2, and the N yokes 21 are disposed at regular intervals on the circumferential outer side of the motor shaft 10. N may be 2, 3, 4, 5 or 6. Above-mentioned structure is different from traditional yoke, and traditional yoke is a whole loop configuration, and the motor shaft is worn to establish in the hole of yoke, and traditional setting up of yoke is placed and can be leaded to the axial of motor shaft to produce stronger magnetic field to influence magnetic encoder's performance. Providing a plurality of yokes 21, on each of which yokes 21 the exciting coil 22 is wound individually, enables the magnetic field to be uniformly distributed in the circumferential direction of the motor shaft 10, greatly reducing the magnetic field strength in the axial direction of the motor shaft 10.

Preferably, in the present embodiment, the number of the yokes 21 is 6. The above structure can make the electromagnetic assembly 20 generate uniform magnetic force to the moving assembly 40 on one hand, thereby improving the braking effect of the brake. On the other hand, the above structure allows the magnetic field around the electromagnet assembly 20 to be distributed as little as possible on the motor shaft 10, thereby reducing the influence of the brake on the function of the magnetic encoder.

Of course, in other embodiments, the N yokes 21 may be divided into a plurality of groups, and the plurality of groups are disposed at regular intervals on the circumferential outer side of the motor shaft 10. The above structure can also reduce the magnetic field strength in the axial direction of the motor shaft 10, thereby improving the working performance of the magnetic encoder.

As shown in fig. 1 to 3, in the present embodiment, the yoke 21 and the base 60 are made of a magnetic conductive material. The above structure can enhance the magnetic field intensity generated by the electromagnetic assembly 20, thereby enhancing the braking intensity of the brake.

In other embodiments, the magnetic yoke 21 may be made of a magnetic conductive material, and a magnetic conductive material layer may be disposed on the surface of the base. The structure can also improve the braking strength of the electric brake, and on the other hand, the manufacturing cost of the brake can be reduced.

As shown in fig. 1 to 3, in the present embodiment, the brake further includes a fixing sleeve disposed on the base 60, and at least one magnetic yoke 21 is disposed in the fixing sleeve, and the fixing sleeve is used to position the magnetic yoke 21. In the above structure, when the yoke 21 is installed, the yoke 21 can be directly assembled into the fixing sleeve, thereby shortening the overall size of the brake, making the structure of the brake more compact and requiring less installation space.

Of course, in other embodiments, a first fastening member may be disposed on an end surface of the base 60, and a second fastening member may be disposed on a side of the yoke 21 close to the base 60, and the first fastening member and the second fastening member are connected or fitted to fix at least one yoke 21 on the base 60. The structure can also achieve the effects of realizing the rapid assembly and stable assembly of the magnet yoke 21, and further improve the assembly rate of the brake.

As shown in fig. 1 to 3, the brake includes at least two yokes 21, and the exciting coils 22 of adjacent two yokes 21 are connected in series or in parallel or are independently disposed.

Specifically, in the present embodiment, the exciting coil 22 of at least two adjacent yokes 21 of the brake is connected in series, and the above structure can simplify the installation process of the brake and improve the installation efficiency of the brake.

Of course, in other embodiments, the excitation coils 22 of two adjacent magnetic yokes 21 may be connected in parallel or independently, and the above-mentioned structure can ensure the operation safety of the brake, and achieve the driving effect on the moving assembly 40, and in case of failure of one of the excitation coils, the other excitation coils may work normally.

In the present embodiment, the current directions of the two adjacent exciting coils 22 are different, and the above structure can make the magnetic fields generated by the two adjacent yokes 21 opposite in direction when the brake is energized, shorten the magnetic field loop, and increase the driving effect of the electromagnetic assembly 20 on the moving assembly 40.

As shown in fig. 1 to 3, a first groove or a first fixing structure is disposed on the moving component 40, the elastic component 50 is connected to the first fixing structure or the first groove in a matching manner, a second groove or a second fixing structure is disposed on the base 60, and the elastic component 50 is connected to the second fixing structure or the second groove in a matching manner.

Specifically, a first end of the elastic member 50 is fixedly connected to the moving member 40, and a second end of the elastic member 50 is fixedly connected to the base 60. A first end of the elastic member 50 may be connected to the moving member 40 through a first fixing structure, and a second end of the elastic member 50 may be connected to the base 60 through a second fixing structure. And/or, a first groove is arranged on the moving component 40, a second groove is arranged on the base 60, a first end of the elastic component 50 is connected in the first groove, and a second end of the elastic component 50 is connected in the second groove. The structure is simple, and the brake is convenient to assemble.

Of course, in other embodiments, the brake may also include a fixing sleeve, the fixing sleeve is provided with a third groove or a third fixing structure, the elastic component 50 is connected with the third groove or the third fixing structure in a matching manner, the electromagnetic component 20 is provided with a fourth groove or a fourth fixing structure, and the elastic component 50 is connected with the fourth groove or the fourth fixing structure in a matching manner. In the above structure, the first end of the elastic member 50 may be connected to the moving member 40 by the third fixing structure, and the second end of the elastic member 50 may be connected to the base 60 by the third fixing structure. And/or a first end of the elastic member 50 is coupled in the third recess and a second end of the elastic member 50 is coupled in the fourth recess. The structure also has the effects of simple structure and convenient assembly of the brake.

As shown in fig. 1 to 3, in the present embodiment, the elastic component 50 is disposed on a side of the moving component 40 away from the braking component 30, and a maximum distance between an end of the elastic component 50 facing the base 60 and the moving component 40 is not greater than a maximum axial length of the elastic component 50 in a free state. Specifically, the maximum axial length of the free state of the elastic component 50 is the axial length of the elastic component in the non-deformation state, and the structure ensures that the elastic component 50 is abutted against the moving component 40, so that the braking effect of the brake is improved.

In the above structure, when the electromagnetic assembly 20 is powered off, the moving assembly 40 moves towards the braking position under the elastic restoring force of the elastic assembly 50, and since the maximum distance between the end of the elastic assembly 50 facing the base 60 and the moving assembly 40 is less than the maximum axial length of the elastic assembly 50 in the free state, the moving assembly 40 is pushed onto the braking assembly 30 under the elastic restoring force of the elastic assembly 50, so that the motor shaft 10 can be braked. The elastic member 50 is a spring. The elastic member 50 includes a plurality of elastic members 50, and the plurality of elastic members 50 are disposed at a circumferential outer side of the motor shaft 10.

Of course, in other embodiments, the elastic component 50 may also be disposed on the side of the moving component 40 facing the braking component 30, and the maximum distance between the end of the elastic component 50 facing the braking component 30 and the moving component 40 is not greater than the maximum axial length of the elastic component 50 in the free state. In the above structure, when the solenoid assembly 20 is de-energized, the elastic assembly 50 pulls the moving assembly 40 toward the braking assembly 30, thereby performing a braking action on the motor shaft 10. When the solenoid assembly 20 is energized, the magnetic attraction of the solenoid assembly 20 moves the moving assembly 40 away from the brake assembly 30, thereby enabling the motor shaft 10 to normally rotate.

As shown in fig. 1 to 3, in the present embodiment, the braking assembly 30 includes a driving hub 31 disposed on the motor shaft 10, the driving hub 31 rotating synchronously with the motor shaft 10, a dynamic friction assembly 32 disposed between the driving hub 31 and the moving assembly 40 and parallel to the moving assembly 40, the dynamic friction assembly 32 having a first through hole at the center thereof, the first through hole matching with the external shape of the driving hub 31; and the static friction component 33 is arranged on one side of the transmission hub 31 far away from the moving component 40 and is arranged parallel to the moving component 40, and the static friction component 33 is fixedly connected with the base 60. In the above structure, the motor shaft 10 rotates to drive the transmission hub 31 to rotate synchronously. When the electromagnet assembly 20 is energized, the moving assembly 40 is gradually separated from the dynamic friction assembly 32 by the magnetic force generated by the electromagnet assembly 20 until the critical point of the non-braking position is reached, at this time, the dynamic friction assembly 32 is not abutted by the moving assembly 40 and is separated from the transmission hub 31, the rotation of the transmission hub 31 is not limited, and the motor shaft 10 can rotate. When the motor shaft 10 needs to be braked, the electromagnetic assembly 20 is powered off, and at this time, the moving assembly 40 moves towards the dynamic friction assembly 32 under the elastic restoring force of the elastic assembly 50 until a critical point of a braking position is reached, when the moving assembly 40 reaches the braking position, the moving assembly 40 presses the dynamic friction assembly 32 to enable the first through hole arranged in the center of the moving assembly to be matched with the outline of the transmission hub 31 and further presses the static friction assembly 33, so that the rotation of the transmission hub 31 is limited, and because the rotation of the transmission hub 31 is limited, the rotation of the motor shaft 10 connected with the transmission hub 31 is also limited, so that the braking of the motor shaft 10 is realized.

It should be noted that the outer contour of the transmission hub 31 is a polygonal structure, and the first through hole at the center of the dynamic friction component 32 is matched with the polygonal structure, so that the transmission hub 31 and the dynamic friction component 32 are embedded, and the braking effect of the brake is improved.

It should be noted that the number of sides of the polygonal structure of the outer contour of the transmission hub 31 is not less than 3.

As shown in fig. 1 to 3, in the present embodiment, the brake further includes a guide 80, one end of the guide 80 is disposed on the base 60 or on the electromagnetic assembly 20, and the other end of the guide 80 is disposed on the static friction assembly 33. The moving assembly 40 is provided with a third through hole or a first guide groove matched with the guide 80, and the dynamic friction assembly 32 is provided with a fourth through hole or a second guide groove matched with the guide 80. In the above structure, the guide member 80 can guide the movement of the dynamic friction assembly 32 in the moving assembly 40 and the braking assembly 30, so that the moving assembly 40 and the dynamic friction assembly 32 can move along the extending direction of the guide member 80, that is, along the axial direction of the brake, thereby improving the stability of the movement of the moving assembly 40 and the dynamic friction assembly 32 and improving the braking effect of the brake.

It should be noted that the dynamic friction assembly 32 includes a reinforcing iron plate located in the middle and friction materials attached to both ends of the reinforcing iron plate.

As shown in fig. 1 to fig. 3, in the present embodiment, an end of the guiding element 80 facing the base 60 is a first end, an end of the guiding element 80 facing the braking assembly 30 is a second end, and the brake further includes a cover disposed on a side of the braking assembly 30 far away from the moving assembly 40, and the cover is detachably connected to the base 60 or the braking assembly 30. A first end of the guide 80 is integrally formed with the solenoid assembly 20 and/or the base 60, and a second end of the guide 80 is fixedly coupled or engaged with the brake assembly 30 and/or the cover. The above structure facilitates the attachment of the guide member 80.

In other embodiments, the first end of the guide 80 may be fixedly connected to the electromagnetic assembly 20 and/or the base 60, and the second end of the guide 80 is fixedly connected to or integrally formed with the brake assembly 30 and/or the cover, and/or the brake further includes a fixing sleeve, the first end of the guide 80 is integrally formed with the fixing sleeve, and the second end of the guide 80 is fixedly connected to or embedded in the brake assembly 30 and/or the cover, and/or the brake further includes a fixing sleeve, the first end of the guide 80 is fixedly connected to the fixing sleeve, and the second end of the guide 80 is fixedly connected to or integrally formed with the brake assembly 30 and/or the cover, and/or the electromagnetic assembly 20 is integrally formed with or fixedly connected to the base 60. Likewise, the above structure can also serve to facilitate the attachment of the guide 80.

As shown in fig. 1 to 3, in the present embodiment, the brake further includes a heat dissipation component, which is a heat dissipation glue 70 wrapping the yoke 21. The structure can improve the heat dissipation performance of the electromagnetic assembly 20, so that the working stability of the brake is improved, and the service life of the brake is prolonged.

Of course, in other embodiments, the heat dissipation assembly may be a first heat dissipation rubber sleeve separately sleeved on the surface of each magnetic yoke 21 with the excitation coil 22; or the heat dissipation assembly is a second heat dissipation rubber sleeve which is independently sleeved on the surface of each magnet yoke 21 with the excitation coil 22, the second heat dissipation rubber sleeve is provided with a second accommodating groove, and the magnet yoke 21 with the excitation coil 22 is positioned in the second accommodating groove; or the heat dissipation assembly is a heat dissipation structure integrally formed with the base 60 and having a third receiving groove, the yoke 21 is located in the third receiving groove, and the third receiving groove is matched with the outer contour of the yoke 21 with the excitation coil 22. The structure can also play a role in radiating the electromagnetic assembly 20, and is beneficial to improving the performance of the brake and prolonging the service life of the brake.

As shown in fig. 1 to 3, the brake is fixedly connected to the front end cover or the rear end cover of the motor, and the above structure can improve the assembly stability of the brake and the motor. Or, the brake further comprises a support, the brake is fixedly connected with the motor through the support, or the motor comprises a shell and a machine body arranged in the shell, the brake is arranged in the shell and fixedly connected with the machine body or the inner wall of the shell, or the motor comprises a rear end cover, and the base 60 and the rear end cover are integrally formed. The structure can facilitate the connection of the brake and the motor, so that the brake and the motor are compact in structure and reasonable in layout after being connected.

The application also provides a motor, and the motor of this application includes: motor main part, motor shaft and stopper. The brake is the brake, and the motor shaft passes through the brake to be in a braking state or a non-braking state. Because the stopper has less axial magnetic field, the simple structure is compact and the advantage of being convenient for install, consequently the motor mountable magnetic encoder that has above-mentioned stopper, measurement accuracy is high, and is effectual, and the motor that has above-mentioned stopper has the advantage that the assembly is convenient, compact structure.

The application also provides an automation equipment, and the automation equipment of this application includes: a brake and a rotating assembly. The brake is the brake, the rotating assembly, and the rotating assembly is in a braking state or a non-braking state through the brake. Because the brake has the advantages of simple and compact structure and convenient installation, the automatic equipment with the brake has the advantages of convenient assembly and compact structure.

To facilitate understanding of the brake and the automation device of the present embodiment, the following description is made with reference to several specific embodiments:

the first embodiment is as follows:

the first embodiment provides a brake, is applied to the motor, and the motor includes motor shaft 10, and the brake includes: a base 60, at least one electromagnetic assembly 20, a braking assembly 30, a moving assembly 40, and a resilient assembly 50. Wherein, the base 60 is sleeved on the motor shaft 10; at least one electromagnetic assembly 20 disposed on the base 60 and not sleeved on the motor shaft 10; the braking component 30 is sleeved on the motor shaft 10, and the braking component 30 is in a braking state for braking the motor shaft 10 or in a non-braking state for rotating the motor shaft 10; the moving assembly 40 is movably disposed between the braking assembly 30 and the electromagnetic assembly 20; the elastic assembly 50 is disposed between the solenoid assembly 20 and the moving assembly 40; the resilient assembly 50 has a braking position threshold that places the brake assembly 30 in a braking state and a non-braking position threshold that places the brake assembly 30 in a non-braking state.

The electromagnetic assembly 20 includes a yoke 21, the yoke 21 is provided with an excitation coil 22, and the yoke 21 is disposed on an end surface of the base 60. The electromagnetic assembly 20 includes a yoke 21 and an excitation coil 22 disposed on the yoke 21, the number of the yoke 21 is N, N is a positive integer greater than or equal to 2, and the N yokes 21 are uniformly disposed on the outer side of the motor shaft 10 in the circumferential direction at intervals. The magnetic yoke 21 and the base 60 are made of magnetic conductive materials or the magnetic yoke is made of magnetic conductive materials, and the surface of the base is provided with a magnetic conductive material layer. The brake further comprises a fixing sleeve arranged on the base 60, at least one magnet yoke 21 being arranged in the fixing sleeve, the fixing sleeve being used to position the magnet yoke 21. The brake includes at least two yokes 21, and the exciting coils 22 of two adjacent yokes 21 are connected in series or in parallel or are independently arranged. The movable assembly 40 is provided with a first groove or a first fixing structure, the elastic assembly 50 is connected with the first fixing structure or the first groove in a matching manner, the base 60 is provided with a second groove or a second fixing structure, and the elastic assembly 50 is connected with the second fixing structure or the second groove in a matching manner. In the present embodiment, the elastic component 50 is disposed on a side of the moving component 40 away from the braking component 30, and a maximum distance between an end of the elastic component 50 facing the base 60 and the moving component 40 is not greater than a maximum axial length of a free state of the elastic component 50. The brake assembly 30 comprises a transmission hub 31 arranged on the motor shaft 10, the transmission hub 31 and the motor shaft 10 synchronously rotate, a dynamic friction assembly 32 arranged between the transmission hub 31 and the moving assembly 40 and parallel to the moving assembly 40, and a first through hole matched with the transmission hub 31 in shape is arranged in the center of the dynamic friction assembly 32; and the static friction component 33 is arranged on one side of the transmission hub 31 far away from the moving component 40 and is arranged parallel to the moving component 40, and the static friction component 33 is fixedly connected with the base 60. The brake further includes a guide member 80, one end of the guide member 80 is disposed on the base 60 or on the solenoid assembly 20, and the other end of the guide member 80 is disposed on the static friction assembly 33. The moving assembly 40 is provided with a third through hole or a first guide groove matched with the guide 80, and the dynamic friction assembly 32 is provided with a fourth through hole or a second guide groove matched with the guide 80. The end of the guiding element 80 facing the base 60 is a first end, the end of the guiding element 80 facing the braking assembly 30 is a second end, and the brake further comprises a cover body disposed on the side of the braking assembly 30 far away from the moving assembly 40, and the cover body is detachably connected with the base 60 or the braking assembly 30. A first end of the guide 80 is integrally formed with the solenoid assembly 20 and/or the base 60, and a second end of the guide 80 is fixedly coupled or engaged with the brake assembly 30 and/or the cover. The brake further includes a heat dissipation assembly, which is a heat dissipation glue 70 wrapping the yoke 21. The brake is fixedly connected with the front end cover or the rear end cover of the motor.

By applying the technical solution of the present embodiment, when the brake is powered on, the electromagnetic assembly 20 generates a magnetic field, and the magnetic force generated by the magnetic field makes the moving assembly 40 in the non-braking position, at this time, the brake is in the non-braking state, and the motor shaft 10 of the motor can rotate. When it is necessary to brake the motor shaft, the brake is de-energized, and the moving assembly 40 is moved toward the braking position by the elastic restoring force of the elastic assembly 50, and the brake is gradually in the braking state, and the motor shaft 10 stops rotating. The utility model discloses the central axial magnetic field that technical scheme can effectual solution stopper produce, thereby reduce or eliminate the influence of axial magnetic field to encoder magnetic induction, the reliability and the stability of effectual improvement encoder operation are in addition, elastic component 50 is in compression state when the stopper circular telegram, remove subassembly 40 and progressively be in non-braking position under elastic component 50's traction, when the stopper outage, remove subassembly 40 and remove towards braking position under elastic component 50's the effect of elastic recovery power, the ejection through elastic component 50 keeps at braking position, thereby realize the braking to motor shaft 10, moreover, the steam generator is simple in structure, the effect is stable.

The second embodiment is as follows:

the second embodiment provides a brake, and the difference between the second embodiment and the first embodiment is that in the second embodiment, the brake may also include a fixing sleeve, a third groove or a third fixing structure is disposed on the fixing sleeve, the elastic component 50 is connected with the third groove or the third fixing structure in a matching manner, the electromagnetic component 20 is provided with a fourth groove or a fourth fixing structure, and the elastic component 50 is connected with the fourth groove or the fourth fixing structure in a matching manner. In the above structure, the first end of the elastic member 50 may be connected to the moving member 40 by the third fixing structure, and the second end of the elastic member 50 may be connected to the base 60 by the third fixing structure. And/or a first end of the elastic member 50 is coupled in the third recess and a second end of the elastic member 50 is coupled in the fourth recess. The structure also has the effects of simple structure and convenient assembly of the brake.

The third concrete embodiment:

the third embodiment provides a brake, and the difference between the third embodiment and the first embodiment lies in the arrangement position of the elastic component, in this embodiment, the elastic component 50 can also be arranged on the side of the moving component 40 facing the brake component 30, and the maximum distance between the end of the elastic component 50 facing the brake component 30 and the moving component 40 is not greater than the maximum axial length of the free state of the elastic component 50. In the above structure, when the brake is de-energized, the elastic member 50 pulls the moving member 40 toward the braking member 30, thereby performing a braking action on the motor shaft 10. When the brake is energized, the electromagnetic assembly 20 generates a magnetic field, and the magnetic attraction of the magnetic field moves the moving assembly 40 to a non-braking position away from the brake assembly 30, thereby allowing the motor shaft 10 to normally rotate.

The fourth concrete embodiment:

a fourth embodiment provides a brake, which is different from the first embodiment in that the guide member is fixed, in this embodiment, a first end of the guide member 80 can be fixedly connected with the electromagnetic assembly 20 and/or the base 60, a second end of the guide member 80 is fixedly connected with or integrally formed with the brake assembly 30 and/or the cover body, and/or, the brake also includes a fixing sleeve, the first end of the guiding element 80 is integrated with the fixing sleeve, the second end of the guiding element 80 is fixedly connected or embedded with the brake component 30 and/or the cover body, and/or, the brake further includes a fixing sleeve, a first end of the guiding element 80 is fixedly connected with the fixing sleeve, a second end of the guiding element 80 is fixedly connected or integrated with the braking assembly 30 and/or the cover body, and/or the electromagnetic assembly 20 is integrally formed or fixedly connected with the base 60. The above structure can play a role in facilitating the setting of the guide member 80, thereby improving the stability of the movement of the electromagnetic assembly 20 and the braking assembly 30.

The fifth concrete embodiment:

a fifth embodiment provides a brake, and the fifth embodiment is different from the first embodiment in a mounting structure of a magnetic yoke, in which at least one mounting groove is provided on an end surface of the base 60, and at least one magnetic yoke 21 is disposed in the mounting groove. The yoke 21 is provided on an end surface of the base 60. Or, the brake further comprises a fixing sleeve arranged on the base 60, a first fastening piece is arranged on the end face of the base 60, a second fastening piece is arranged on one side of the magnetic yoke 21 close to the base 60, and the first fastening piece and the second fastening piece are connected or matched in an embedding mode to fix at least one magnetic yoke 21 on the base 60. The structure can also achieve the effects of realizing the rapid assembly and stable assembly of the magnet yoke 21, and further improve the assembly rate of the brake.

The sixth specific embodiment:

a sixth embodiment provides a brake, and the sixth embodiment differs from the first embodiment in the arrangement of the magnetic yokes, in which the electromagnetic assembly 20 includes N magnetic yokes 21 and excitation coils 22 disposed on the magnetic yokes 21, and the N magnetic yokes 21 are uniformly divided into a plurality of groups in the circumferential direction of the motor shaft 10. The structure can also reduce the axial magnetic field intensity of the motor shaft 10, thereby improving the working performance of the magnetic encoder.

The seventh specific embodiment:

a seventh embodiment provides a brake, and the difference between the seventh embodiment and the first embodiment lies in the structure of a heat dissipation assembly, in this embodiment, the heat dissipation assembly is a first heat dissipation rubber sleeve independently sleeved on the surface of each magnetic yoke 21 with a field coil 22; or, the heat dissipation assembly is a second heat dissipation rubber sleeve which is independently sleeved on the surface of each magnetic yoke 21 with the excitation coil 22, the second heat dissipation rubber sleeve is provided with a second accommodating groove, and the magnetic yoke 21 with the excitation coil 22 is located in the second accommodating groove; alternatively, the heat dissipating assembly is a heat dissipating structure integrally formed with the base 60 and having a third receiving groove, the yoke 21 is located in the third receiving groove, and the third receiving groove is matched with the outer contour of the yoke 21 with the exciting coil 22. The structure can also play a role in radiating the electromagnetic assembly 20, and is beneficial to improving the performance of the brake and prolonging the service life of the brake.

The eighth embodiment:

a eighth specific embodiment provides a motor, and in the eighth specific embodiment, the motor includes: motor main part, motor shaft and stopper. The brake is the brake, and the motor shaft passes through the brake to be in a braking state or a non-braking state. Because the stopper has less axial magnetic field, the simple structure is compact and the advantage of being convenient for install, consequently the motor mountable magnetic encoder that has above-mentioned stopper, measurement accuracy is high, and is effectual, and the motor that has above-mentioned stopper has the advantage that the assembly is convenient, compact structure.

The specific embodiment is nine:

a ninth embodiment provides an automation apparatus, and in a ninth embodiment, the automation apparatus includes: a brake and a rotating assembly. The brake is the brake, the rotating assembly, and the rotating assembly is in a braking state or a non-braking state through the brake. Because the brake has the advantages of simple and compact structure and convenient installation, the automatic equipment with the brake has the advantages of convenient assembly and compact structure.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (16)

1. A brake for an electric machine comprising a motor shaft (10), characterized in that it comprises:

the base (60) is sleeved on the motor shaft (10);

at least one electromagnetic assembly (20) disposed on the base (60) and not sleeved on the motor shaft (10);

the brake assembly (30) is sleeved on the motor shaft (10), and the brake assembly (30) is in a braking state for braking the motor shaft (10) or in a non-braking state for enabling the motor shaft (10) to rotate;

a moving assembly (40) movably disposed between the brake assembly (30) and the solenoid assembly (20);

an elastic assembly (50) disposed between the electromagnetic assembly (20) and the moving assembly (40); and/or the elastic component (50) is arranged between the base (60) and the moving component (40); and/or the elastic component (50) is arranged between the moving component (40) and the braking component (30), and the elastic component (50) is provided with a braking position critical point which enables the braking component (30) to be in a braking state and a non-braking position critical point which enables the braking component (30) to be in a non-braking state.

2. Brake according to claim 1, characterized in that the magnet assembly (20) comprises a magnet yoke (21), on which magnet yoke (21) the magnet coil (22) is arranged, which magnet yoke (21) is arranged on an end face of the base (60), and/or in that on an end face of the base (60) at least one mounting groove is arranged, in which at least one magnet yoke (21) is arranged.

3. The brake of claim 2, characterized in that the number of the yokes (21) is N, N being a positive integer equal to or greater than 2, the N yokes (21) are uniformly arranged at intervals in the circumferential direction of the motor shaft (10), and/or the N yokes (21) are uniformly arranged in groups in the circumferential direction of the motor shaft (10).

4. The brake of claim 2,

the magnetic yoke (21) and the base (60) are made of magnetic conductive materials, or,

the magnetic yoke (21) is made of magnetic conductive materials, and the surface of the base (60) is provided with a magnetic conductive material layer.

5. The brake of claim 2,

said brake further comprising a fixing sleeve arranged on said base (60), at least one of said magnetic yokes (21) being arranged in said fixing sleeve, said fixing sleeve being intended to position said magnetic yokes (21), and/or,

the end face of the base (60) is provided with a first fastening piece, one side of the magnetic yoke (21) close to the base (60) is provided with a second fastening piece, and the first fastening piece and the second fastening piece are connected or embedded to fix at least one magnetic yoke (21) on the base (60).

6. Brake according to claim 2, characterized in that the brake comprises at least two yokes (21), the field coils (22) of two adjacent yokes (21) being arranged in series or in parallel or independently.

7. The brake of claim 1,

a first groove or a first fixing structure is arranged on the moving component (40), the elastic component (50) is matched and connected with the first fixing structure or the first groove, and/or,

a second groove or a second fixing structure is arranged on the base (60), the elastic component (50) is matched and connected with the second fixing structure or the second groove, and/or,

the brake also comprises a fixed sleeve, a third groove or a third fixing structure is arranged on the fixed sleeve, the elastic component (50) is matched and connected with the third groove or the third fixing structure, and/or,

the electromagnetic assembly (20) is provided with a fourth groove or a fourth fixing structure, and the elastic assembly (50) is connected with the fourth groove or the fourth fixing structure in a matched mode.

8. The brake of claim 1,

the elastic component (50) is arranged on the side of the moving component (40) far away from the braking component (30), the maximum distance between one end of the elastic component (50) facing the base (60) and the moving component (40) is not more than the maximum axial length of the free state of the elastic component (50), and/or,

the elastic component (50) is arranged on the side, facing the braking component (30), of the moving component (40), and the maximum distance between one end, facing the braking component (30), of the elastic component (50) and the moving component (40) is not larger than the maximum axial length of the elastic component (50) in a free state.

9. The brake of claim 1, characterized in that the brake assembly (30) comprises,

a transmission hub (31) arranged on the motor shaft (10), the transmission hub (31) and the motor shaft (10) rotate synchronously,

the dynamic friction component (32) is arranged between the transmission hub (31) and the moving component (40) and is parallel to the moving component (40), and a first through hole matched with the appearance of the transmission hub (31) is formed in the center of the dynamic friction component (32);

the static friction component (33) is arranged on one side, far away from the moving component (40), of the transmission hub (31) and is parallel to the moving component (40), and the static friction component (33) is fixedly connected with the base (60).

10. Brake according to claim 9, characterized in that it further comprises a guide (80), said guide (80) being provided at one end on said base (60) or on said electromagnetic assembly (20), the other end of said guide (80) being provided on said stiction assembly (33).

11. The brake of claim 10,

the moving component (40) is provided with a third through hole or a first guide groove matched with the guide piece (80),

the dynamic friction component (32) is provided with a fourth through hole or a second guide groove matched with the guide piece (80).

12. The brake of claim 10, wherein the guide member (80) comprises a plurality of guide members, one end of the guide member (80) facing the base (60) is a first end, one end of the guide member (80) facing the brake assembly (30) is a second end, the brake further comprises a cover disposed on a side of the brake assembly (30) away from the moving assembly (40), the cover is detachably connected to the base (60) or the brake assembly (30), and the guide member (80) is installed in a manner including at least one of

A first end of the guide piece (80) is integrally formed with the electromagnetic assembly (20) and/or the base (60), and a second end of the guide piece (80) is fixedly connected or embedded with the brake assembly (30) and/or the cover body;

a first end of the guide piece (80) is fixedly connected with the electromagnetic assembly (20) and/or the base (60), and a second end of the guide piece (80) is fixedly connected with or integrally formed with the brake assembly (30) and/or the cover body;

the brake also comprises a fixed sleeve, the first end of the guide piece (80) is integrally formed with the fixed sleeve, and the second end of the guide piece (80) is fixedly connected or embedded with the brake component (30) and/or the cover body;

the brake also comprises a fixing sleeve, wherein the first end of the guide piece (80) is fixedly connected with the fixing sleeve, and the second end of the guide piece (80) is fixedly connected with the brake component (30) and/or the cover body or integrally formed;

the electromagnetic assembly (20) and the base (60) are integrally formed or fixedly connected.

13. The brake of claim 2, further comprising a heat sink assembly,

the heat dissipation assembly is heat dissipation glue (70) wrapping the magnet yoke (21); or

The heat dissipation assembly is a first heat dissipation rubber sleeve which is independently sleeved on the surface of each magnetic yoke (21) with the excitation coil (22); or

The heat dissipation assembly is a second heat dissipation rubber sleeve which is independently sleeved on the surface of each magnetic yoke (21) with the excitation coil (22), the second heat dissipation rubber sleeve is provided with a second accommodating groove, and the magnetic yoke (21) with the excitation coil (22) is located in the second accommodating groove; or alternatively

The heat dissipation assembly is a heat dissipation structure which is integrally formed with the base (60) and provided with a third accommodating groove, the magnet yoke (21) is located in the third accommodating groove, and the third accommodating groove is matched with the outer contour of the magnet yoke (21) with the magnet exciting coil (22).

14. The brake of claim 1,

the brake is fixedly connected with the front end cover or the rear end cover of the motor, or,

the brake further comprises a bracket, and the brake is fixedly connected with the motor through the bracket, or

The motor comprises a shell and a machine body arranged in the shell, the brake is arranged in the shell and is fixedly connected with the machine body or the inner wall of the shell, or,

the motor comprises a rear end cover, and the base (60) and the rear end cover are integrally formed.

15. An electric motor comprising a motor body, a motor shaft and a brake, wherein the brake is any one of the brakes 1 to 14.

16. An automated device comprising:

a brake, characterized in that the brake is any one of 1 to 14;

a rotating assembly that passes through the brake to be in a braking position or a non-braking position.

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