CN213478986U - Split brake and motor - Google Patents
Split brake and motor Download PDFInfo
- Publication number
- CN213478986U CN213478986U CN202021301516.7U CN202021301516U CN213478986U CN 213478986 U CN213478986 U CN 213478986U CN 202021301516 U CN202021301516 U CN 202021301516U CN 213478986 U CN213478986 U CN 213478986U
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- end cover
- encoder
- brake
- armature
- iron core
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- 238000007789 sealing Methods 0.000 claims abstract description 48
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000010687 lubricating oil Substances 0.000 claims description 8
- 238000004512 die casting Methods 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 25
- 239000000463 material Substances 0.000 abstract description 5
- 230000010354 integration Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Abstract
The utility model relates to a stopper field specifically discloses a split type stopper and motor, including first end cover, second end cover, sealing member, wheel hub, friction disc, armature, spring, stopper iron core, all set up the axle mounting hole that is used for installing the pivot on first end cover and the second end cover, the second end cover is located one side that first end cover is close to the encoder, and the second end cover inner wall passes through the sealing member and is connected with the pivot, be equipped with the stopper iron core in the first end cover, one side that the encoder was kept away from to the stopper iron core is passed through the spring and is connected with armature, and wheel hub is connected with pivot integrated into one piece and locates one side that armature kept away from the encoder, and one side that wheel hub is close to armature is fixed with the. Wheel hub and pivot integration, the stopper is installed facing away from the encoder, increases rubber seal spare in the pivot, has so not only effectively solved the wheel hub slope, and has avoided the dust to leak to the encoder, and wheel hub can also act as the bearing shelves simultaneously, save material, reduce cost.
Description
Technical Field
The utility model relates to a stopper field, concretely relates to split type stopper and motor.
Background
China is a large manufacturing country, Chinese manufacturing is spread over various countries in the world by virtue of population dividends in the past 20 years, but currently, with the aging of the population of China becoming more and more serious, the high-speed development is required to be continuously maintained, industrial upgrading is required, and Chinese manufacturing is changed into Chinese manufacturing, so that various automatic factories are produced at one time, robots are used for replacing manual work, servo motors are widely used as core parts, and most of the servo motors are provided with brakes in order to cope with the conditions of factory power failure, machine emergency stop and the like, so that the stability of the brakes is very important. Traditional split type stopper wheel hub is fixed through B type parallel key and holding screw with between the pivot, because the nonconformity of technology during the assembly has slight slope, traditional split type stopper leads to armature to follow friction disc clearance inconsistent because the wheel hub slope, after electrifying again, needs bigger voltage just can attract armature to go back, and voltage increase, whole stopper generate heat will increase. In addition, the hub is slightly inclined after being impacted by the armature for many times, so that after the brake is powered off, the clearance between the armature and the friction plate is different, the armature cannot be in full contact with the friction plate, and the static friction torque is reduced. Traditional split type stopper is when motor emergency braking, and armature and friction disc interact can produce a large amount of dust, and the dust can leak the encoder code wheel through the clearance of end cover and axle on, causes the encoder communication unusual, and the reliability of direct influence encoder, direct damage when serious, greatly reduced servo motor reliability and life.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a split type stopper, including first end cover, second end cover, sealing member, wheel hub, friction disc, armature, spring, stopper iron core, all set up the axle mounting hole that is used for installing the pivot on first end cover and the second end cover, the second end cover is located one side that first end cover is close to the encoder, and the second end cover inner wall passes through the sealing member and is connected with the pivot, be equipped with the stopper iron core in the first end cover, one side that the encoder was kept away from to the stopper iron core is passed through the spring and is connected with armature, and wheel hub is connected with pivot integrated into one piece and locates one side that armature kept away from the encoder, and one side that wheel hub is close to armature is fixed with. The hub and the rotating shaft of the split brake are designed into an integral body, the traditional mode that a B-type flat key and a set screw are fixed on the rotating shaft is eliminated, the inclination caused by factors such as inconsistent assembly process and part tolerance is avoided, the hub and the shaft are kept perpendicular forever, and the armature is completely attached to the friction plate.
Further, the stopper still includes the bearing, be equipped with the bearing in the one side that the encoder was kept away from to wheel hub in the first end cover, be equipped with the bulge on the wheel hub, the bulge is contradicted with the inner circle of bearing. Wheel hub and pivot integration, the bearing is installed in wheel hub one side, and at this moment, wheel hub acts as the bearing shelves, and the wheel hub bulge supports the bearing inner race, saves the step of processing the bearing shelves in addition like this, the material resources of using manpower sparingly.
Further, the outer ring of the sealing element is tightly matched with the inner wall of the second end cover, and the inner ring of the sealing element is in sliding fit with the rotating shaft. The sealing member is installed between stopper iron core and second end cover, has the clearance between sealing member inner circle and the pivot, can not interfere with the second end cover when the pivot rotates.
Further, the sealing element is a sealing ring. Through installing the sealing washer in the second end cover and blockking the dust between second end cover and first end cover, the sealing washer effectively blocks the dust, prevents that the dust from overflowing to the encoder.
Further, the inner ring of the sealing ring is coated with lubricating oil. The inner circle of sealing washer scribbles lubricating oil, when the pivot rotates, the relative rotation is done with the pivot to the sealing washer, gap department at sealing washer and pivot adds lubricating oil, help avoiding the dust to leak to encoder department, its principle is similar to oil blanket theory of operation, when the clearance overflow of part dust from stopper iron core and pivot promptly, the sealing washer can block the dust, prevent that it is direct to overflow to the encoder from the clearance between second end cover and the pivot, fully guarantee the clean and tidy operational environment of encoder, improve the reliability and the life of motor complete machine greatly.
Further, the sealing element is a rubber element. The sealing element is a rubber sealing ring, and the inner ring is in sliding fit with the rotating shaft, so that the sealing ring is convenient to disassemble and replace.
Furthermore, a plurality of pin holes are formed in the brake iron core, pins are embedded in the pin holes, and through holes for the pins to penetrate through are formed in the armature. The pin is arranged in the three holes of the brake iron core, and the other end of the pin penetrates through the three holes of the armature to play roles in supporting the armature and positioning;
furthermore, a plurality of spring holes are formed in the brake iron core, and one end of each spring is arranged in each spring hole. The brake iron core is provided with a spring hole for mounting a spring, and the spring is mounted in the spring hole of the brake iron core and plays a role in supporting and positioning the spring.
Further, the first end cover is arranged on the brake iron core in an integrated forming mode through cold pressing or hot sleeving or die casting. The first end cover and the brake iron core are assembled through cold pressing, hot sleeving or die-casting, and the first end cover is made of a metal material, so that the structural strength is guaranteed.
Further, the friction plate is pasted on the hub through glue. The friction plate and the hub are fixed together through bonding, the connection is stable, and the friction plate is prevented from shifting.
The utility model provides an adopt foretell split type stopper's motor, includes casing, split type stopper, encoder lid, encoder and pivot, and first end cover is connected with the casing, and the second end cover is connected with the encoder lid, the encoder sets up in the encoder lid, be equipped with the pivot in the casing, pivot one end runs through split type stopper and is connected with the encoder.
The utility model discloses a following scheme realizes: the friction plate of the split brake is fixed on the end surface of the hub, and the hub and the rotating shaft are integrally designed and rotate with the shaft; the armature is arranged behind the hub, the brake iron core is arranged behind the armature, the spring is arranged in the brake iron core, and after the split brake is powered off, the armature is bounced to move to the upper surface of the friction plate to be attached to the friction plate. Wheel hub and pivot integrated design have not only effectively solved the wheel hub slope like this, and the bearing contact on wheel hub and the first end cover, wheel hub act as the bearing shelves, save material, reduce cost, and wheel hub, armature are located the one side that the encoder was kept away from to the stopper iron core, and the stopper is installed facing away from the encoder, have reduced the volume of leaking the dust of second end cover to installation rubber seal spare in the second end cover has avoided the dust to leak to the encoder.
Compared with the prior art, the utility model discloses the beneficial effect that can reach is:
1. the problem of inconsistent clearance between the armature and the friction plate caused by the installation inclination of the hub is solved, the armature is completely attached to the friction plate, and the static friction torque is ensured to be unchanged;
2. the problem that the gap between the hub and the friction plate is inconsistent is solved, the armature can be sucked back by ensuring the rated attraction voltage, and the temperature rise of the brake is effectively reduced;
3. the hub serves as a bearing stop, so that materials are effectively saved, and the cost is reduced;
4. effectively avoid leaking the motor communication trouble that leads to the encoder because of the dust that the friction disc produced, ensured encoder operational environment's clean and tidy nature, improved motor reliability and life.
Drawings
Fig. 1 is a schematic structural diagram of a motor carrying a split brake provided by the present invention;
FIG. 2 is a schematic structural diagram of a motor carrying a conventional split brake;
fig. 3 is a schematic structural view of a wheel hub provided by the present invention;
FIG. 4 is a schematic structural view of a hub of a conventional split brake;
FIG. 5 is a schematic view of the armature;
fig. 6 is a schematic structural view of a brake core.
The labels in the figure are: the brake comprises a machine shell 1, a split brake 2, an encoder cover 3, an encoder 4, a rotating shaft 5, a first end cover 21, a second end cover 22, a sealing piece 23, a brake iron core 24, a hub 25, a bulge 251, a friction plate 26, a spring 27, an armature 28, a bearing 29, a pin 210, a B-type flat key 6, a set screw 7, a pin hole 241 and a spring hole 242.
The arrows in fig. 2 indicate the direction of the dust.
Detailed Description
To facilitate understanding of the present invention for those skilled in the art, the present invention will be described in further detail with reference to the following detailed description and accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. "inner and outer" refer to the inner and outer portions of a particular contour. "distal and proximal" refer to distal and proximal relative to a component.
As shown in fig. 2, fig. 2 is a motor carrying a conventional split brake 2, a brake hub 25 and a rotating shaft 5 of the motor of the conventional split brake are fixed through a B-shaped flat key 6 and a set screw 7, and have a slight inclination due to inconsistent processes during assembly, and in addition, the hub 25 is slightly inclined after being impacted by an armature 28 for multiple times, so that the gap between the armature 28 and a friction plate 26 is different after the brake is powered off, and the armature 28 cannot be in sufficient contact with the friction plate 26, so that the static friction torque is reduced.
In the conventional split brake 2, because the hub 25 is inclined, the gap between the armature 28 and the friction plate 26 is inconsistent, after the power is supplied again, a larger voltage is needed to attract the armature 28 back, the voltage is increased, and the heat generation of the whole brake is increased.
When motor emergency braking, armature 28 and friction disc 26 interact can produce a large amount of dust in traditional split type stopper 2, and the dust can leak the encoder 4 code wheel through the clearance of rear end cap and axle as shown by the arrow in fig. 2 on, causes encoder 4 communication unusual, and direct influence encoder 4's reliability, direct damage when serious, greatly reduced servo motor reliability and life.
As shown in fig. 1, an embodiment of the present invention provides a split brake 2, and the present patent relates to a split brake 2 motor. The motor comprises a shell 1, a split brake 2, a coder cover 3, an encoder 4, a rotating shaft 5 and the like, wherein the brake comprises a first end cover 21, a second end cover 22, a sealing piece 23, a hub 25, a friction plate 26, an armature 28, a spring 27, a brake iron core 24 and a bearing 29, shaft mounting holes for mounting the rotating shaft 5 are formed in the first end cover 21 and the second end cover 22, the second end cover 22 is arranged on one side, close to the encoder 4, of the first end cover 21, the inner wall of the second end cover 22 is connected with the rotating shaft 5 through the sealing piece 23, the brake iron core 24 is arranged in the first end cover 21, one side, far away from the encoder 4, of the brake iron core 24 is connected with the armature 28 through the spring 27, the hub 25 is connected with the rotating shaft 5 in an integrated forming manner and is arranged on one side, far away from the encoder 4, of the armature 28, the friction plate 26 is glued to the hub 25. The friction plate 26 and the hub 25 are fixed together by bonding, the hub 25 and the rotating shaft 5 of the split brake 2 are designed into an integral body, the traditional mode that the B-shaped flat key 6 and the set screw 7 are fixed on the rotating shaft 5 is eliminated, the inclination caused by factors such as inconsistent assembly process, part tolerance and the like is avoided, the hub 25 and the shaft are kept perpendicular forever, and the armature 28 is completely attached to the friction plate 26.
A bearing 29 is arranged on one side of the hub 25, which is far away from the encoder 4, in the first end cover 21, a protruding part 251 is arranged on the hub 25, and the protruding part 251 is abutted against an inner ring of the bearing 29. The hub 25 is integrated with the rotating shaft 5, the bearing 29 is arranged on one side of the hub 25, at the moment, the hub 25 serves as a bearing stop, and the convex part 251 of the hub 25 props against the inner ring of the bearing 29, so that the step of additionally processing the bearing stop is omitted, and manpower and material resources are saved.
The sealing element 23 is a rubber sealing ring, the outer ring of the sealing ring is tightly matched with the inner wall of the second end cover 22, the inner ring of the sealing ring is in sliding fit with the rotating shaft 5, and lubricating oil is coated on the inner ring of the sealing ring. The outer ring of the sealing ring is tightly matched with the second end cover 22; after the second end cap 22 is positioned on the sealing ring, the second end cap 22 is tightly matched with the first end cap 21, so that the second end cap 22 is prevented from rotating, a gap exists between an inner ring of the second end cap 22 and the rotating shaft 5, and the rotating shaft 5 cannot interfere with the second end cap 22 when rotating; when part of the dust overflows from the gap between the brake core 24 and the rotating shaft 5, the seal ring blocks the dust and prevents the dust from directly overflowing from the gap between the second end cover 22 and the rotating shaft 5 to the encoder 4. The inner circle of sealing washer scribbles lubricating oil, when pivot 5 rotates, the relative rotation is done with pivot 5 to the sealing washer, gap department at sealing washer and pivot adds lubricating oil, help avoiding the dust to leak 4 departments of encoder, its principle is similar to oil blanket theory of operation, when partial dust overflows from the clearance of stopper iron core 24 with pivot 5 promptly, the sealing washer can block the dust, prevent that it is direct to overflow on encoder 4 from the clearance between second end cover 22 and the pivot 5, fully guarantee the clean and tidy operational environment of encoder 4, improve the reliability and the life of motor complete machine greatly.
The brake iron core 24 is provided with a plurality of pin holes 241, the pins 210 are embedded in the pin holes 241, and the armature 28 is provided with through holes for the pins 210 to penetrate through. The pin 210 is installed in three pin holes 241 of the brake core 24, and the other end of the pin 210 passes through three through holes of the armature 28 to support and position the armature 28.
Six spring holes 242 are formed in the brake iron core 24, and one end of the spring 27 is arranged in the spring holes 242. The brake core 24 is provided with a spring hole 242 for mounting the spring 27, and the spring 27 is mounted in the spring hole 242 of the brake core 24 to support and position the spring 27.
The first end cover 21 is arranged on the brake iron core 24 in an integrated forming mode through cold pressing or hot sleeving or die casting. The first end cover 21 and the brake iron core 24 are assembled through cold pressing, hot sleeving or die-casting, and the first end cover 21 is made of a metal material, so that the structural strength is guaranteed.
The friction plate 26 is glued to the hub 25. The friction plate 26 and the hub 25 are fixed together by bonding, the connection is stable, and the friction plate 26 is prevented from being displaced.
The friction plate 26 of the split brake 2 is fixed on the end surface of the hub 25, and the hub 25 and the rotating shaft 5 are integrally designed and rotate together with the shaft; after the armature 28 is installed on the hub 25, as shown in fig. 5, three holes are opened on the outer peripheral side of the armature 28, the brake iron core 24 is installed behind the armature 28, as shown in fig. 6, the brake iron core 24 is opened with three holes for installing the pins 210 and six holes for installing the springs 27, the springs 27 are installed in six holes of the brake iron core 24, the pins 210 are installed in three holes of the brake iron core 24, the other ends of the pins 210 penetrate through the three holes of the armature 28 to play roles of supporting the armature 28 and positioning, after the split brake 2 is powered off, the armature 28 is flicked to move to the friction plate 26 to be attached to the friction plate, as the hub 25 and the rotating shaft 5 are integrally designed, the armature 28 and the friction plate 26 cannot be tilted by the elastic force from the armature 28, the armature 28 and the friction plate 26; when the split brake 2 is powered on, the armature 28 is attracted, and because the hub 25 is not inclined, the armature 28 is completely attached to the friction plate 26, so that the gap between the brake iron core 24 and the armature 28 is kept consistent, the armature 28 can be attracted back only by introducing the rated attraction voltage required by the brake, the overlarge attraction voltage is effectively inhibited, and the temperature rise of the brake is reduced.
As shown in fig. 1, an embodiment of the utility model provides a split type stopper 2 motor, including casing 1, split type stopper 2, encoder lid 3, encoder 4 and pivot 5, first end cover 21 is connected with casing 1, and second end cover 22 is connected with encoder 3 lid, encoder 4 sets up in encoder lid 3, be equipped with pivot 5 in the casing 1, 5 one end of pivot runs through split type stopper 2 and is connected with encoder 4. The split brake 2 is installed back to the encoder 4, and the installation has the advantage that dust generated by the friction plate 26 cannot directly overflow to the encoder 4; the sealing ring is arranged between the brake iron core 24 and the second end cover 22, the sealing ring is a rubber part, the inner ring is tightly matched with the rotating shaft 5, lubricating oil is coated on the inner ring, the inner ring and the rotating shaft 5 rotate relatively, and the principle of the sealing ring is similar to that of an oil seal; the outer ring of the sealing ring is tightly matched with the second end cover 22; after the second end cover 22 is positioned on the sealing ring, the outer ring of the second end cover 22 is matched with the first end cover 21 through the spigot, a gap exists between the inner ring and the rotating shaft 5, and the rotating shaft 5 cannot interfere with the second end cover 22 when rotating; when partial dust overflows from the gap between the brake iron core 24 and the rotating shaft 5, the sealing ring can block the dust, so that the dust is prevented from directly overflowing to the encoder 4 from the gap between the second end cover 22 and the rotating shaft 5, the clean working environment of the encoder 4 is fully ensured, and the reliability and the service life of the whole motor are greatly improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A split brake, characterized in that: including first end cover, second end cover, sealing member, wheel hub, friction disc, armature, spring, stopper iron core, all set up the axle mounting hole that is used for installing the pivot on first end cover and the second end cover, the second end cover is located one side that first end cover is close to the encoder, the second end cover inner wall passes through the sealing member and is connected with the pivot, be equipped with the stopper iron core in the first end cover, the one side that the encoder was kept away from to the stopper iron core is passed through the spring and is connected with armature, wheel hub is connected with pivot integrated into one piece and locates one side that armature kept away from the encoder, one side that wheel hub is close to armature is fixed with the friction disc, the friction disc sets up.
2. The split brake of claim 1, wherein: the brake still includes the bearing, the one side of keeping away from the encoder in wheel hub in the first end cover is equipped with the bearing, be equipped with the bulge on the wheel hub, the bulge is contradicted with the inner circle of bearing.
3. The split brake of claim 2, wherein: the outer ring of the sealing element is tightly matched with the inner wall of the second end cover, and the inner ring of the sealing element is in sliding fit with the rotating shaft.
4. The split brake of claim 3, wherein: the sealing element is a rubber sealing ring.
5. The split brake of claim 4, wherein: the inner ring of the sealing element is coated with lubricating oil.
6. The split brake of claim 4, wherein: the brake comprises a brake iron core and is characterized in that a plurality of pin holes are formed in the brake iron core, pins are embedded in the pin holes, and through holes for the pins to penetrate through are formed in the armature.
7. The split brake of claim 2, wherein: a plurality of spring holes are formed in the brake iron core, and one end of each spring is arranged in each spring hole.
8. The split brake of claim 7, wherein: the first end cover is arranged on the brake iron core in a cold pressing or hot sleeving or die-casting integrated forming mode.
9. The split brake of claim 2, wherein: the friction plate is stuck on the hub through glue.
10. An electric machine characterized by: the encoder comprises a shell, a split brake, an encoder cover, an encoder and a rotating shaft, wherein a first end cover is connected with the shell, a second end cover is connected with the encoder cover, the encoder is arranged in the encoder cover, the rotating shaft is arranged in the shell, one end of the rotating shaft penetrates through the split brake and is connected with the encoder, and the split brake is the split brake in any one of claims 2 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021301516.7U CN213478986U (en) | 2020-07-06 | 2020-07-06 | Split brake and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021301516.7U CN213478986U (en) | 2020-07-06 | 2020-07-06 | Split brake and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213478986U true CN213478986U (en) | 2021-06-18 |
Family
ID=76359886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021301516.7U Expired - Fee Related CN213478986U (en) | 2020-07-06 | 2020-07-06 | Split brake and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213478986U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113595278A (en) * | 2021-07-30 | 2021-11-02 | 珠海格力电器股份有限公司 | Rotor subassembly and have its motor |
-
2020
- 2020-07-06 CN CN202021301516.7U patent/CN213478986U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113595278A (en) * | 2021-07-30 | 2021-11-02 | 珠海格力电器股份有限公司 | Rotor subassembly and have its motor |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210618 |