CN217904197U - Servo brake and motor - Google Patents
Servo brake and motor Download PDFInfo
- Publication number
- CN217904197U CN217904197U CN202221791477.2U CN202221791477U CN217904197U CN 217904197 U CN217904197 U CN 217904197U CN 202221791477 U CN202221791477 U CN 202221791477U CN 217904197 U CN217904197 U CN 217904197U
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- rotor
- spring
- armature
- stator
- service brake
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Abstract
The utility model discloses a servo brake and motor, wherein servo brake includes arresting gear and rotor, arresting gear is including braking the main part, armature and spring, the braking main part is equipped with the clearance, the armature activity is located in the clearance, the spring is the loop configuration, the one end and the armature of spring are connected, the other end and the braking main part of spring are connected, the rotor activity is located in the clearance, and be located armature one side of spring dorsad, the rotor is used for being connected with the motor shaft, spring and the coaxial setting of rotor, wherein, the rotor has rotating condition and quiescent condition, at rotating condition, braking main part drive armature keeps away from the rotor, at quiescent condition, spring drive armature is close to the rotor, and with the rotor butt. The utility model discloses technical scheme aims at making armature even with each point atress on the circumferencial direction of the contact surface of rotor, stability and security when reinforcing service brake braking.
Description
Technical Field
The utility model relates to a servo brake technical field, in particular to servo brake and motor.
Background
Current servo brake includes stator, armature, rotor and ring flange, and wherein, the fixed position of stator and ring flange, the rotor is located between stator and the ring flange, and the motor shaft passes ring flange and rotor fixed connection, and the rotor can be along with the motor shaft rotation, and armature locates between rotor and the stator, and armature is connected with the stator through a plurality of springs, and a plurality of spring equipartitions provide the holding power for servo brake's armature on the stator circumference. When the stator is electrified, the armature iron compresses the plurality of springs to be attracted with the stator under the action of electromagnetic force; when the stator is powered off, the rotor is clamped between the armature and the flange disc by means of the counterforce of a plurality of springs, and braking is carried out by means of friction force.
However, the plurality of springs are stressed inconsistently, so that the gap between the armature and the rotor is not uniform, and the friction torque of each point is not uniform.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a servo brake, aim at making armature even with each point atress on the circumferencial direction of the contact surface of rotor, stability and security when reinforcing servo brake braking.
To achieve the above object, the present invention provides a servo brake comprising:
the braking device comprises a braking main body, an armature and a spring, wherein the braking main body is provided with a gap, the armature is movably arranged in the gap, the spring is of an annular structure, one end of the spring is connected with the armature, and the other end of the spring is connected with the braking main body; and
the rotor is movably arranged in the gap and is positioned on one side, back to the spring, of the armature, the rotor is used for being connected with a motor shaft, and the spring and the rotor are coaxially arranged;
wherein the rotor has a rotational state in which the brake body drives the armature away from the rotor and a stationary state; in the rest state, the spring drives the armature closer to the rotor and abuts against the rotor.
In an embodiment of the present invention, the brake main body includes a stator, a flange plate and a plurality of supporting members, a plurality of the supporting members are disposed between the stator and the flange plate, and the stator and the flange plate support the gap therebetween, the spring is away from one end of the armature and the stator is connected, and the rotor is disposed between the armature and the flange plate.
In an embodiment of the present invention, one side of the stator close to the armature is provided with a spring slot, the spring slot is annular, the spring slot is arranged along the circumferential direction of the stator, and the spring is away from one end of the armature and is arranged in the spring slot.
In an embodiment of the present invention, the length of the spring in the natural state is a first length, and the distance from the bottom of the spring groove to the flange is smaller than the first length.
In an embodiment of the present invention, a coil is disposed in the stator, and the coil is electrically connected to an external circuit.
In an embodiment of the present invention, a plurality of the supporting members are disposed at intervals along the stator rim; and/or, the edge of the armature is provided with a plurality of openings, and each support piece movably penetrates through one opening.
In an embodiment of the present invention, the supporting member is provided with a through hole, the circumferential edge of the stator is provided with a mounting hole, the circumferential edge of the flange is provided with a through hole, the braking body further includes a fixing member, and the fixing member sequentially passes through the through hole and extends into the mounting hole.
In an embodiment of the present invention, a distance from the central position of the rotor to the support member is greater than a radius of the rotor.
In an embodiment of the present invention, the spring material is metal.
The utility model also provides a motor, the motor includes the motor shaft and as above servo brake, the motor shaft runs through servo brake, and with the rotor is connected.
The utility model discloses technical scheme provides a servo brake changes an annular spring who locates armature circumferencial direction through a plurality of springs between with armature and the braking main part, make the spring equal to the holding power that armature circumferencial direction provided, wherein, armature and braking main part are connected respectively to the both ends of spring, the rotor is located one side of armature dorsad spring, the braking main part is stationary, when spring drive armature is close to the rotor, because the holding power that the spring provided armature circumferencial direction equals, then armature and rotor contact air gap department before equal, armature and rotor contact back friction force that produces everywhere also department equals, thereby armature and rotor contact surface on each friction torque also the same, stability and security when having strengthened servo brake.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic cross-sectional view of an embodiment of a service brake of the present invention;
fig. 2 is a schematic structural diagram of an embodiment of the servo brake of the present invention;
fig. 3 is a schematic structural diagram of another embodiment of the servo brake of the present invention;
fig. 4 is a schematic view of a spring in the servo brake of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name(s) |
| 100 | Servo |
131 | Through |
| 1 | |
14 | |
| 10 | Brake |
141 | Through hole |
| 11 | |
15 | |
| 12 | |
20 | |
| 121 | |
21 | Opening(s) |
| 122 | |
30 | |
| 123 | |
2 | |
| 13 | Flange plate |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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. 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 should be noted that all the directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the expression "and/or" as used throughout is meant to encompass three juxtaposed aspects, exemplified by "A and/or B", including either the A aspect, or the B aspect, or aspects in which both A and B are satisfied. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a servo brake 100.
In the embodiment of the present invention, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, the servo brake 100 includes a brake device 1 and a rotor 2, the brake device 1 includes a brake main body 10, an armature 20 and a spring 30, the brake main body 10 is provided with a gap 11, the armature 20 is movably disposed in the gap 11, the spring 30 is in an annular structure, one end of the spring 30 is connected to the armature 20, and the other end of the spring 30 is connected to the brake main body 10; the rotor 2 is movably arranged in the gap 11 and is positioned on one side of the armature 20, which is opposite to the spring 30, the rotor 2 is used for being connected with a motor shaft, and the spring 30 and the rotor 2 are coaxially arranged;
wherein the rotor 2 has a rotating state in which the braking body 10 drives the armature 20 away from the rotor 2 and a stationary state; in the rest state, the spring 30 drives the armature 20 close to the rotor 2 and in abutment with the rotor 2.
The utility model discloses technical scheme is through changing a plurality of springs 30 between armature 20 and the braking main part 10 into one and locates the ascending annular spring 30 of armature 20 circumferencial direction, make the holding power that spring 30 provided armature 20 circumferencial direction equal, wherein, armature 20 and braking main part 10 are connected respectively to the both ends of spring 30, rotor 2 is located armature 20 one side of spring 30 dorsad, braking main part 10 is immovable, when spring 30 drive armature 20 is close to rotor 2, because the holding power that spring 30 provided armature 20 circumferencial direction equals, then armature 20 and the air gap department before the rotor 2 contact equal, armature 20 and the friction force that produces everywhere after the rotor 2 contact also everywhere of armature 2 contact equal everywhere, thereby each friction torque on armature 20 and the rotor 2 contact surface is also the same, stability and security when servo brake 100 brakes have been strengthened.
In the present embodiment, the whole servo brake 100 comprises a fixed brake main body 10, an armature 20 and a spring 30 which are arranged in a gap 11 of the brake main body 10, and a rotor 2 which can rotate along with a motor shaft, wherein one end of the spring 30 is connected with the armature 20, and the other end of the spring 30 is connected with the brake main body 10, and the rotor 2 is positioned on one side of the armature 20, which is opposite to the spring 30.
Further, when the rotor 2 is to be rotated normally, the armature 20 compresses the spring 30 and abuts the one-side braking body 10 connected to the spring 30, so that the air gap between the armature 20 and the other-side braking body 10 is greater than the thickness of the rotor 2 without blocking the normal rotation of the rotor 2.
Further, when the rotor 2 is to be braked, due to the fixation of the brake body 10, the spring 30 provides the armature 20 with a supporting force moving towards the rotor 2, so that the armature 20 abuts against the rotor 2, the rotor 2 is clamped between the armature 20 and the brake body 10 close to the rotor 2, and friction is realized by the contact surfaces between the rotor 2 and the armature 20, and between the rotor 2 and the brake body 10, thereby realizing the braking of the rotor 2.
In this embodiment, the central axis of the spring 30 and the motor shaft connected to the rotor 2 are on the same straight line to ensure that the spring 30 uniformly applies force to each point in the circumferential direction of the armature 20, and the armature 20 is arranged parallel to the rotor 2 to ensure that the frictional force at each point on the contact surface between the armature 20 and the rotor 2 is the same when the rotor 2 is braked.
In the embodiment, compared with the prior art in which a plurality of springs 30 are arranged, the arrangement of one spring 30 can reduce the assembly time by 50% or more, greatly improve the production efficiency and reduce the production cost.
In an embodiment of the present invention, as shown in fig. 1 and 2, the braking body 10 includes a stator 12, a flange 13 and a plurality of supporting members 14, the plurality of supporting members 14 are disposed between the stator 12 and the flange 13 and support the gap 11 between the stator 12 and the flange 13, one end of the spring 30 away from the armature 20 is connected to the stator 12, and the rotor 2 is disposed between the armature 20 and the flange 13.
In the present embodiment, the braking body 10 includes a stator 12, a flange 13, and 3 supporting members 14,3 supporting members 14 support a gap 11 between the stator 12 and the flange 13, an armature 20 and a spring 30 are disposed in the gap 11, the armature 20 is connected to the stator 12 through the spring 30, and the rotor 2 is located between the armature 20 and the flange 13.
Further, when the rotor 2 is braked, the spring 30 drives the armature 20 to be close to the rotor 2, the rotor 2 is clamped between the armature 20 and the flange 13, and friction is realized by contact surfaces between the rotor 2 and the armature 20 and between the rotor 2 and the flange 13, so that the rotor 2 is braked.
In the present embodiment, the surface of the stator 12 connected to the spring 30, the surface of the armature 20 connected to the spring 30, the contact surface between the armature 20 and the rotor 2, and the contact surface between the rotor 2 and the flange 13 are all parallel to each other, and the direction of the supporting force provided by the spring 30 to the armature 20 is perpendicular to the above surfaces and the contact surfaces, so as to ensure that the friction force at each point on the contact surfaces between the rotor 2 and the armature 20, and between the rotor 2 and the flange 13 is the same when the rotor 2 is braked.
In an embodiment of the present invention, as shown in fig. 2 and 3, a spring slot 121 is disposed on one side of the stator 12 close to the armature 20, the spring slot 121 is annular, the spring slot 121 extends along a circumferential direction of the stator 12, and one end of the spring 30 away from the armature 20 is disposed in the spring slot 121.
In the present embodiment, a spring slot 121 is provided on one side of the stator 12 close to the armature 20, and the spring slot 121 is used for fixing the spring 30, so that the compression and release directions of the spring 30 are perpendicular to the contact surface of the armature 20 and the rotor 2.
In this embodiment, the spring slot 121 is annular and extends along the circumferential direction of the stator 12, ensuring that the spring 30 provides the same support force to the armature 20 at each point in the circumferential direction.
In an embodiment of the present invention, as shown in fig. 1, the length of the spring 30 in the natural state is a first length, and the distance from the bottom of the spring groove 121 to the flange 13 is smaller than the first length.
In this embodiment, the distance from the bottom of the spring groove 121 to the flange 13 is smaller than the length of the spring 30 in the natural state, so that the spring 30 is always in the compressed state, even if the spring 30 is in the longest state in the gap 11, the spring is in the compressed state, and the spring can continuously provide a supporting force for the friction between the armature 20 and the rotor 2, thereby ensuring that the rotor 2 can be braked by using the friction force.
In an embodiment of the present invention, as shown in fig. 1, a coil 122 is disposed in the stator 12, and the coil 122 is used for electrically connecting with an external circuit.
In this embodiment, a coil 122 is disposed in the stator 12, the coil 122 is used for electrically connecting with an external circuit, when the coil 122 is energized, the coil 122 in the stator 12 generates an electromagnetic force, the electromagnetic force attracts the armature 20 to compress the spring 30, and causes the armature 20 to attract the stator 12, and a sufficient air gap is left for the rotor 2 to rotate along with the motor shaft.
Further, when the coil 122 is de-energized, the attraction force of the coil 122 to the armature 20 disappears, and the armature 20 can receive only the supporting force from the spring 30, so that the armature 20 approaches the rotor 2, and the rotor 2 is braked by the friction force.
It will be appreciated that when coil 122 is energized, the force of attraction of coil 122 to armature 20 is greater than the force of support of armature 20 by spring 30, enabling armature 20 to compress spring 30 and engage stator 12.
In an embodiment of the present invention, as shown in fig. 2, a plurality of the supporting members 14 are spaced along the edge of the stator 12; and/or, the edge of the armature 20 is provided with a plurality of openings 21, and each support member 14 is movably arranged through one of the openings 21.
In this embodiment, 3 support members 14 are spaced evenly around the periphery of the stator 12, the periphery of the armature 20 is provided with 3 openings 21 that mate with the 3 support members 14, and the 3 support members 14 guide the armature 20 as the armature 20 moves toward or away from the rotor 2.
It will be appreciated that when the rotor 2 is braked, a circumferential frictional force is generated between the armature 20 and the rotor 2, and the armature 20 is prevented from rotating in the circumferential direction by the frictional force by providing the armature 20 with an opening 21 that engages with the support member 14.
In an embodiment of the present invention, as shown in fig. 1 and 2, the supporting member 14 is provided with a through hole 141, the circumferential edge of the stator 12 is provided with a mounting hole 123, the circumferential edge of the flange 13 is provided with a through hole 131, the braking body 10 further includes a fixing member 15, and the fixing member 15 sequentially passes through the through hole 131 and the through hole 141 and extends into the mounting hole 123.
In this embodiment, the fixing member 15 sequentially passes through the through hole 131 and the through hole 141 and extends into the mounting hole 123 to fix the flange 13, the supporting member 14, and the stator 12 together, so that the gap 11 of the braking body 10 does not increase, and the armature 20 and the flange 13 can be ensured to clamp the rotor 2 to brake the rotor 2.
In an embodiment of the present invention, as shown in fig. 1 and 2, the distance from the central position of the rotor 2 to the supporting member 14 is greater than the radius of the rotor 2.
In this embodiment, the distance from the center of the rotor 2 to the support 14 is greater than the radius of the rotor 2, so as to ensure that the rotor 2 is not blocked by the support 14 during the normal rotation process.
In an embodiment of the present invention, the spring 30 is made of metal.
The utility model discloses still provide a motor, the motor includes motor shaft and servo brake 100, and this servo brake 100's concrete structure refers to above-mentioned embodiment, because this motor has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A service brake, characterized in that the service brake comprises:
the braking device comprises a braking main body, an armature and a spring, wherein the braking main body is provided with a gap, the armature is movably arranged in the gap, the spring is of an annular structure, one end of the spring is connected with the armature, and the other end of the spring is connected with the braking main body; and
the rotor is movably arranged in the gap and positioned on one side of the armature, which is opposite to the spring, the rotor is used for being connected with a motor shaft, and the spring and the rotor are coaxially arranged;
wherein the rotor has a rotational state in which the brake body drives the armature away from the rotor and a stationary state; in the rest state, the spring drives the armature closer to the rotor and abuts against the rotor.
2. The service brake of claim 1 wherein said brake body includes a stator, a flange, and a plurality of support members disposed between said stator and said flange to support said gap between said stator and said flange, an end of said spring remote from said armature being connected to said stator, and said rotor being positioned between said armature and said flange.
3. The servo brake of claim 2 wherein the stator includes a spring slot on a side thereof adjacent the armature, the spring slot being annular and extending circumferentially of the stator, an end of the spring remote from the armature being disposed in the spring slot.
4. A service brake according to claim 3 wherein said spring has a natural length of a first length and the distance from the bottom of said spring groove to said flange is less than said first length.
5. A service brake according to claim 2, wherein a coil is provided in the stator for electrical connection to an external circuit.
6. The service brake of claim 2 wherein a plurality of said support members are spaced along said stator rim;
and/or, the edge of the armature is provided with a plurality of openings, and each support piece movably penetrates through one opening.
7. The service brake as recited in claim 2, wherein said support member is provided with a through hole, said stator is provided with a mounting hole at a circumferential edge thereof, said flange plate is provided with a through hole at a circumferential edge thereof, and said brake main body further comprises a fixing member which is inserted through said through hole and said through hole in this order and is inserted into said mounting hole.
8. A service brake as recited in claim 2, wherein a center position of said rotor is spaced from said support by a distance greater than a radius of said rotor.
9. A service brake according to any one of claims 1 to 8, wherein the spring material is metal.
10. An electric machine comprising a motor shaft extending through the service brake and connected to the rotor, and a service brake as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221791477.2U CN217904197U (en) | 2022-07-12 | 2022-07-12 | Servo brake and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221791477.2U CN217904197U (en) | 2022-07-12 | 2022-07-12 | Servo brake and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217904197U true CN217904197U (en) | 2022-11-25 |
Family
ID=84133953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221791477.2U Active CN217904197U (en) | 2022-07-12 | 2022-07-12 | Servo brake and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217904197U (en) |
-
2022
- 2022-07-12 CN CN202221791477.2U patent/CN217904197U/en active Active
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