CN110994888A - Rear end cover and split type brake motor - Google Patents
Rear end cover and split type brake motor Download PDFInfo
- Publication number
- CN110994888A CN110994888A CN201911199824.5A CN201911199824A CN110994888A CN 110994888 A CN110994888 A CN 110994888A CN 201911199824 A CN201911199824 A CN 201911199824A CN 110994888 A CN110994888 A CN 110994888A
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- Prior art keywords
- rear end
- encoder
- end cover
- dust
- motor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention provides a rear end cover which comprises an end cover body and a shaft mounting hole, wherein the shaft mounting hole is formed in the end cover body, a communication area is arranged on one side of the end cover body, one end of the communication area is an air inlet, the other end of the communication area is an air outlet, and an adsorbing material is filled in the communication area. The rear end cover is provided with the communicating area, the flowing direction of the gas in the motor is changed by utilizing the phenomena of large outer ring pressure and small inner ring pressure of the gas in the motor, so that the dust generated after the friction plate is abraded moves along the flowing route of the gas, namely, the dust enters the communicating area from the gas inlet, the gas leaves from the gas outlet of the communicating area, and the dust is locked by the adsorbing material in the communicating area, so that the quantity of the dust flowing towards the direction of the encoder is reduced, the probability of the encoder code disc being polluted by the dust is reduced, and the running reliability of the encoder is improved. The invention also provides a split brake motor which comprises a rear end cover.
Description
Technical Field
The invention belongs to the technical field of motors, and particularly relates to a rear end cover and a split brake motor.
Background
With the arrival of the industrial 4.0 era, the robot industry in China also enters the vigorous development era, and as a core part of the robot, the servo motor is developed in a close process. Carry on traditional rear end cap's split type stopper motor, servo motor's encoder is the high accuracy product, and the encoder code wheel requires clean and tidy dustless.
Split type stopper is when motor emergency braking, and friction disc and armature friction take place wearing and tearing, can produce a large amount of dusts after the friction disc wearing and tearing, and the encoder code wheel will be revealed through the clearance of rear end cap and axle to the dust, and after the encoder code wheel contacted the dust, the encoder communication can receive the influence, reduces servo motor reliability, and the unable communication of encoder when serious, consequently, need minimize the dust quantity that removes toward the encoder direction.
Disclosure of Invention
The invention provides a rear end cover which is used for solving the problem of dust leakage caused by the operation of a friction plate and achieving the beneficial effect of effectively reducing the probability of dust leakage.
The invention also provides a split brake motor, which is used for solving the problem of encoder failure caused by dust leakage and achieving the beneficial effect of improving the use reliability of the motor.
The invention is realized by the following technical scheme:
the utility model provides a rear end cover, includes end cover body and axle mounting hole, sets up axle mounting hole on the end cover body, its characterized in that: a communicating area is arranged on one side of the end cover body, one end of the communicating area is an air inlet, the other end of the communicating area is an air outlet, and adsorbing materials are filled in the communicating area.
Furthermore, the communicating area is formed by a plurality of linear cavities.
Furthermore, the communication area is composed of a plurality of bending cavities.
Furthermore, the communicating area is provided with a first air inlet, a second air inlet and an air outlet, the air inlet is positioned on the outer side of the air outlet, and the first air inlet is positioned on the outer side of the second air inlet.
Furthermore, the adsorbing material is sponge capable of adsorbing dust.
Furthermore, the communication areas are arranged in a plurality and are circumferentially distributed by taking the shaft mounting hole as a center.
A split brake motor comprises a rear end cover, wherein the rear end cover is the rear end cover.
Further, split type stopper motor still include pivot, bearing, well end cover, casing, encoder and split type stopper, be equipped with the rear end cap in the casing, be equipped with the pivot in the axle mounting hole, pivot one end is equipped with the encoder, the pivot other end is equipped with split type stopper, split type stopper is connected with well end cover, well end cover passes through the bearing and is connected with the pivot.
Furthermore, split type stopper include brake iron core, lead-out wire, friction disc, wheel hub, armature, winding and skeleton, be equipped with wheel hub, armature, brake iron core in proper order in the pivot, wheel hub is located rear end cap one side, is equipped with the friction disc between wheel hub and the armature, is equipped with the skeleton on the brake iron core, installs the winding on the skeleton, and lead-out wire one end is connected to the winding, and the other end of lead-out wire passes the casing.
Furthermore, the encoder comprises an encoder main body, an encoder coded disc and an encoder cover, wherein one side of the encoder coded disc is connected with the rotating shaft, the other side of the encoder coded disc is connected with the encoder main body, and the encoder cover is connected with the rear end cover.
The invention has the advantages that:
the rear end cover is provided with the communicating area, the flowing direction of the gas in the motor is changed by utilizing the phenomena of large outer ring pressure and small inner ring pressure of the gas in the motor, so that the dust generated after the friction plate is abraded moves along the flowing route of the gas, namely, the dust enters the communicating area from the gas inlet, the gas leaves from the gas outlet of the communicating area, and the dust is locked by the adsorbing material in the communicating area, so that the quantity of the dust flowing towards the direction of the encoder is reduced, the probability of the encoder code disc being polluted by the dust is reduced, and the running reliability of the encoder is improved.
The communicated areas are arranged into a plurality of linear cavities, the structure is convenient for processing and filling the adsorption material, and the use is time-saving and labor-saving; when the communicating area is arranged, the communicating area can be replaced by a plurality of bending cavities, and the structure is convenient for fixing the adsorbing material and improves the adsorbing effect.
According to the invention, the two air inlets are arranged in the communication area, and the second inlet can perform secondary adsorption on dust which is not fully adsorbed by the first inlet, so that the dust adsorption rate is improved; the communicating areas are arranged in a plurality of numbers, so that the adsorption effect is ensured.
The rear end cover with the communication area is arranged, when the motor normally operates, dust of the friction plate is adsorbed by the dust adsorbing material in the rear end cover, the amount of dust flowing towards the encoder is effectively reduced, the operation reliability of the motor is improved, the service life of the motor is prolonged, the probability of dust pollution of a code disc of the encoder is reduced, the frequency of replacing the encoder is reduced, and the use cost is further reduced.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic structural view of example 1;
FIG. 2 is a schematic structural view of the rear end cap of FIG. 1;
FIG. 3 is a left side view of FIG. 2;
FIG. 4 is a schematic view showing the flow direction of the internal gas in example 1;
FIG. 5 is a schematic view showing the direction of movement of the dust in example 1;
FIG. 6 is a schematic view of the structure of example 2
FIG. 7 is a schematic structural view of the rear end cap of FIG. 6;
FIG. 8 is a left side view of FIG. 7;
FIG. 9 is a schematic diagram of a prior art configuration;
FIG. 10 is a schematic illustration of a dust leakage route in the prior art; .
In the figure, 1, a rear end cover; 11. an end cap body; 12. a shaft mounting hole; 13. a connected region; 14. adsorbing material; 15. an air inlet; 16. an air outlet; 2. a housing; 3. a rotating shaft; 4. an encoder; 41. a code disc of an encoder; 42. an encoder main body; 43. an encoder cover; 5. a split brake; 51. a hub; 52. an armature; 53. a brake core; 54. a friction plate; 55. a framework; 56. a winding; 57. an outgoing line; 6. a middle end cover; 7. and a bearing.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A rear end cover, as shown in fig. 1 to 3, comprises an end cover body 11 and a shaft mounting hole 12, wherein the end cover body 11 is provided with the shaft mounting hole 12, and the shaft mounting hole 12 is used for mounting a rotating shaft 3; a communicating area 13 is arranged on one side of the end cover body 11, and the communicating area 13 is used for adsorbing dust generated by abrasion of the friction plate; one end of the communicating region 13 is a gas inlet 15, and the other end is a gas outlet 16, so that gas enters from the gas inlet 15 and leaves from the gas outlet 16 when flowing; the communicating area 13 is filled with an adsorbing material 14, the gas drives dust to move when flowing, and the adsorbing material 14 is used for adsorbing dust.
As shown in fig. 2, the communication area 13 is formed by a plurality of linear cavities. The structure is convenient for processing and filling the adsorption material 14, and the use is convenient; the adsorbing material 14 is a sponge capable of adsorbing dust, the use cost is low, the amount of the dust is different for motors with different power sections, and the volume of the adsorbing material 14 is designed to be changed according to the amount of the dust.
As shown in fig. 3, a plurality of the communication areas 13 are provided, and the communication areas 13 are circumferentially distributed around the shaft mounting hole 12. This structure ensures that a large amount of dust that friction disc 54 produced fully gets into in the communicating region 13, is favorable to adsorbing material 14 to adsorb the dust, improves the adsorption effect.
When the motor works, the rotating shaft 3, the encoder coded disc 41, the hub 51, the bearing 7 and the friction plate 54 participate in rotary motion, when the motor is braked emergently, the armature 52 presses on the friction plate 54, the friction plate 54 and the armature 52 rub and are abraded, and a large amount of dust is generated after the friction plate 54 is abraded. In order to avoid dust from leaking to the code disc of the encoder 4 through the gap between the rear end cover 1 and the rotating shaft 3, a communication area 13 is arranged on the rear end cover 1, and an adsorbing material 14 is arranged in the communication area 13.
When the motor rotating shaft 3 rotates normally, the hub 51 and the friction plate 54 rotate synchronously, the gas in the motor also rotates along with the rotation, and the gas is thrown from the inner ring to the outer ring, so that the outer ring pressure of the gas in the motor is high, and the inner ring pressure is low. The dust is driven to move by the gas flow, the gas flow route is consistent with the dust movement route, and the gas flow direction in the rear end cover is shown in figure 4; as shown in fig. 5, dust generated from the friction plate 54 in the motor will move with the airflow.
The gas carries the dust to get into from air inlet 15, and then gas leaves from gas outlet 16 through adsorbing material 14, and the dust is then fixed in communicating region 13 after being adsorbed by adsorbing material 14 for the dust quantity that flows toward encoder 4 direction reduces, reduces encoder code wheel 41 by dust pollution's probability, and the reliability of encoder 4 operation promotes.
Example 2
On the basis of embodiment 1, the communication area 13 is provided with a first air inlet 15, a second air inlet 15 and an air outlet 16, wherein the air inlet 15 is positioned outside the air outlet 16, and the first air inlet 15 is positioned outside the second air inlet 15. The second air inlet can carry out the secondary to the not abundant absorbent dust of first air inlet and adsorb, improves the dust adsorption efficiency.
As shown in fig. 2, the communication region 13 is formed by a plurality of bending cavities. This structure is convenient for fixed adsorption material 14, improves the adsorption effect. The adsorbing material 14 is a sponge capable of adsorbing dust, the use cost is low, the amount of the dust is different for motors with different power sections, and the volume of the adsorbing material 14 is designed to be changed according to the amount of the dust.
As shown in fig. 3, a plurality of the communication areas 13 are provided, and the communication areas 13 are circumferentially distributed around the shaft mounting hole 12. This structure ensures that a large amount of dust that friction disc 54 produced fully gets into in the communicating region 13, is favorable to adsorbing material 14 to adsorb the dust, improves the adsorption effect.
When the motor rotating shaft 3 rotates normally, the hub 51 and the friction plate 54 rotate synchronously, the gas in the motor also rotates along with the rotation, and the gas is thrown from the inner ring to the outer ring, so that the outer ring pressure of the gas in the motor is high, and the inner ring pressure is low. The dust is driven to move by the gas flow, the gas flow route is consistent with the dust movement route, and the gas flow direction in the rear end cover is shown in figure 4; as shown in fig. 5, dust generated from the friction plate 54 in the motor will move with the airflow.
The gas carries the dust and gets into from first air inlet and second air inlet, then gas leaves from gas outlet 16 through adsorbing material 14, and the dust is then fixed in communicating region 13 by adsorbing material 14 after adsorbing, and the second air inlet can carry out the secondary to the not abundant absorbent dust of first air inlet and adsorb, improves the dust adsorption rate. The quantity of dust flowing towards the direction of the encoder 4 is reduced, the probability that the encoder code disc 41 is polluted by the dust is reduced, and the running reliability of the encoder 4 is improved.
Example 3
On the basis of embodiments 1 and 2, a split brake motor, as shown in fig. 1 and 6, includes a rear end cap 1, and the rear end cap 1 is the rear end cap 1. The split brake motor also comprises a rotating shaft 3, a bearing 7, a middle end cover 6, a shell 2, an encoder 4 and a split brake 5, wherein a rear end cover 1 is arranged in the shell 2, the rotating shaft 3 is arranged in a shaft mounting hole 12, and the rotating shaft 3 is in clearance fit with the rear end cover 1; one end of the rotating shaft 3 is provided with an encoder 4, the other end of the rotating shaft 3 is provided with a split brake 5, the split brake 5 is connected with the middle end cover 6, and the middle end cover 6 partially wraps the brake iron core 53; the middle end cover 6 is connected with the rotating shaft 3 through a bearing 7.
As shown in fig. 1 and 6, the split brake includes a brake iron core 53, an outgoing line 57, a friction plate 54, a hub 51, an armature 52, a winding 56 and a framework 55, the hub 51, the armature 52 and the brake iron core 53 are sequentially arranged on the rotating shaft 3, the hub 51 is located at one side of the rear end cover 1, and the hub 51 and the rotating shaft 3 form a tight fit in a cold pressing or hot sleeving manner; a friction plate 54 is arranged between the hub 51 and the armature 52, and the friction plate 54 is fixed on the end face of the hub 51; the brake iron core 53 is wrapped by the middle end cover 6, the brake iron core 53 is provided with a framework 55, a winding 56 is arranged on the framework 55, the winding 56 is connected with one end of an outgoing line 57, and the other end of the outgoing line 57 penetrates through the machine shell 2.
As shown in fig. 1 and 6, the encoder 4 includes an encoder body 42, an encoder code wheel 41 and an encoder cover 43, wherein one side of the encoder code wheel 41 is connected with the rotating shaft 3, the other side of the encoder code wheel is connected with the encoder body 42, and the encoder cover 43 is connected with the rear end cover 1.
According to the invention, the rear end cover 1 with the communicating area 13 is arranged, when the motor normally operates, dust of the friction plate 54 is adsorbed by the dust adsorbing material 14 in the rear end cover 1, the amount of dust flowing towards the encoder 4 is effectively reduced, the reliability of the motor operation is improved, the service life of the motor is prolonged, the probability of dust pollution of the encoder code disc 41 is reduced, the frequency of replacing the encoder 4 is reduced, and the use cost is further reduced.
Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a rear end cover, includes end cover body and axle mounting hole, sets up axle mounting hole on the end cover body, its characterized in that: a communicating area is arranged on one side of the end cover body, one end of the communicating area is an air inlet, the other end of the communicating area is an air outlet, and adsorbing materials are filled in the communicating area.
2. A rear end cap according to claim 1, wherein: the communicating area is composed of a plurality of linear cavities.
3. A rear end cap according to claim 1, wherein: the communicating area is composed of a plurality of bending cavities.
4. A rear end cap according to claim 1, wherein: the communicating area is provided with a first air inlet, a second air inlet and an air outlet, the air inlet is positioned on the outer side of the air outlet, and the first air inlet is positioned on the outer side of the second air inlet.
5. A rear end cap according to claim 1, wherein: the adsorbing material is sponge capable of adsorbing dust.
6. A rear end cap according to claim 1, wherein: the communicating areas are arranged in a plurality of numbers and are circumferentially distributed by taking the shaft mounting hole as a center.
7. The utility model provides a split type stopper motor, includes a rear end cap, its characterized in that: the rear end cap is a rear end cap as claimed in any one of claims 1 to 6.
8. The split brake motor of claim 7, wherein: split type stopper motor still include pivot, bearing, well end cover, casing, encoder and split type stopper, be equipped with the rear end cap in the casing, be equipped with the pivot in the axle mounting hole, pivot one end is equipped with the encoder, the pivot other end is equipped with split type stopper, split type stopper is connected with well end cover, well end cover passes through the bearing and is connected with the pivot.
9. The split brake motor of claim 8, wherein: the split brake comprises a brake iron core, an outgoing line, a friction plate, a hub, an armature, a winding and a framework, wherein the hub, the armature and the brake iron core are sequentially arranged on a rotating shaft, the hub is positioned on one side of a rear end cover, the friction plate is arranged between the hub and the armature, the framework is arranged on the brake iron core, the winding is arranged on the framework, one end of the outgoing line is connected with the winding, and the other end of the outgoing line penetrates through the shell.
10. The split brake motor of claim 8, wherein: the encoder comprises an encoder main body, an encoder coded disc and an encoder cover, wherein one side of the encoder coded disc is connected with the rotating shaft, the other side of the encoder coded disc is connected with the encoder main body, and the encoder cover is connected with the rear end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911199824.5A CN110994888A (en) | 2019-11-29 | 2019-11-29 | Rear end cover and split type brake motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911199824.5A CN110994888A (en) | 2019-11-29 | 2019-11-29 | Rear end cover and split type brake motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110994888A true CN110994888A (en) | 2020-04-10 |
Family
ID=70088331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911199824.5A Pending CN110994888A (en) | 2019-11-29 | 2019-11-29 | Rear end cover and split type brake motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110994888A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116021546A (en) * | 2022-08-17 | 2023-04-28 | 深圳市大族机器人有限公司 | Joint module and robot |
| CN118100516A (en) * | 2024-04-25 | 2024-05-28 | 珠海格力电器股份有限公司 | Brake and motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202798352U (en) * | 2012-08-27 | 2013-03-13 | 无锡华达电机有限公司 | Mounting structure for brake and encoder of motor |
| CN202994194U (en) * | 2012-06-12 | 2013-06-12 | 深圳市粤华机电技术开发有限公司 | Sealing structure for encoder |
| CN102468714B (en) * | 2010-11-08 | 2015-03-04 | 株式会社安川电机 | Motor with encoder and motor used for encoder |
| CN109245426A (en) * | 2018-10-23 | 2019-01-18 | 珠海格力电器股份有限公司 | Brake, motor |
| CN109831072A (en) * | 2019-02-21 | 2019-05-31 | 珠海格力电器股份有限公司 | Motor |
-
2019
- 2019-11-29 CN CN201911199824.5A patent/CN110994888A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102468714B (en) * | 2010-11-08 | 2015-03-04 | 株式会社安川电机 | Motor with encoder and motor used for encoder |
| CN202994194U (en) * | 2012-06-12 | 2013-06-12 | 深圳市粤华机电技术开发有限公司 | Sealing structure for encoder |
| CN202798352U (en) * | 2012-08-27 | 2013-03-13 | 无锡华达电机有限公司 | Mounting structure for brake and encoder of motor |
| CN109245426A (en) * | 2018-10-23 | 2019-01-18 | 珠海格力电器股份有限公司 | Brake, motor |
| CN109831072A (en) * | 2019-02-21 | 2019-05-31 | 珠海格力电器股份有限公司 | Motor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116021546A (en) * | 2022-08-17 | 2023-04-28 | 深圳市大族机器人有限公司 | Joint module and robot |
| CN116021546B (en) * | 2022-08-17 | 2024-05-31 | 深圳市大族机器人有限公司 | Joint module and robot |
| CN118100516A (en) * | 2024-04-25 | 2024-05-28 | 珠海格力电器股份有限公司 | Brake and motor |
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Application publication date: 20200410 |
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