CN117977864A - Motor with good overall sealing performance - Google Patents
Motor with good overall sealing performance Download PDFInfo
- Publication number
- CN117977864A CN117977864A CN202410390652.4A CN202410390652A CN117977864A CN 117977864 A CN117977864 A CN 117977864A CN 202410390652 A CN202410390652 A CN 202410390652A CN 117977864 A CN117977864 A CN 117977864A
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- end cover
- motor
- air
- sealing ring
- sealing
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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 94
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Sealing Devices (AREA)
Abstract
The invention belongs to the technical field of motors, in particular to a motor with good integral tightness, which comprises a shell, a first end cover and a second end cover, wherein the first end cover and the second end cover are positioned at two ends of the shell, a stator is installed in the shell, a rotor positioned on a central axis of the stator is commonly installed between the first end cover and the second end cover, a plurality of lugs are arranged at the connecting parts of the shell, the first end cover and the second end cover, two lugs of the same group are fixedly connected through a bolt assembly, a pair of bearings are sleeved on a central shaft of the rotor, the two bearings are respectively propped against the first end cover and the second end cover, mounting grooves for mounting sealing rings are respectively formed in the inner surfaces of the first end cover and the second end cover, and a sealing assembly is arranged at the mounting grooves. In the invention, after the sealing ring is worn to a certain extent, the sealing ring can be tightly attached to the central shaft of the rotor again through the sealing component, so that the motor does not need to be directly disassembled to replace the sealing ring.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a motor with good overall tightness.
Background
The motor is an electromagnetic device for converting or transmitting electric energy according to the law of electromagnetic induction, and is represented by the letter M (old standard is represented by D) in a circuit, and the motor has the main function of generating driving torque to be used as a power source of an electric appliance or various machines.
However, when the motor is actually used, because the motor is used as a power source and can be operated in places with severe environments, external dust, water and oil impurities enter the motor through gaps of the motor, the gaps between the motor shaft and the shell are generally provided with sealing rings for sealing, but the sealing rings are worn after long-term use, so that gaps are generated again, and the motor is generally detached for replacing the sealing rings, so that the motor with good overall sealing performance is quite troublesome.
Disclosure of Invention
Based on the technical problems in the prior art, the invention provides a motor with good overall tightness.
The invention provides a motor with good integral tightness, which comprises a shell, a first end cover and a second end cover, wherein the first end cover and the second end cover are positioned at two ends of the shell, a stator is arranged in the shell, a rotor positioned on the central axis of the stator is commonly arranged between the first end cover and the second end cover, a plurality of lugs are arranged at the connecting parts of the shell, the first end cover and the second end cover, the two lugs of the same group are fixedly connected through a bolt assembly, a pair of bearings are sleeved on the central shaft of the rotor, the two bearings respectively prop against the first end cover and the second end cover, mounting grooves for mounting sealing rings are formed in the inner surfaces of the first end cover and the second end cover, and a sealing assembly is arranged at the mounting grooves, so that the sealing rings are tightly attached to the central shaft of the rotor again through the sealing assembly after the sealing rings are worn to a certain extent.
Preferably, the sealing assembly comprises a connecting pipe, round holes communicated with the mounting grooves are formed in the first end cover and the second end cover, the connecting pipe and the sealing ring are integrally formed and can be inserted into the round holes, an air cavity is formed in the sealing ring, a first one-way valve is fixed in the connecting pipe, an air port is formed in the top end of the connecting pipe, an air needle on the air cylinder is inserted into the air port and then inflated, air is inflated into the air cavity through the connecting pipe, the sealing ring is inflated and then expanded, the friction surface of the sealing ring is tightly attached to the central shaft again, and the first one-way valve can only air in the air and cannot air out, so that air leakage of the sealing ring can be avoided.
Preferably, the air cavity is located at a position far away from the friction surface of the sealing ring, the sealing ring forms an expansion area and a friction area respectively at the upper part and the lower part of the air cavity, after the air cavity is inflated, the expansion area expands and abuts against the inner wall of the mounting groove, and then the friction area is abutted against the central shaft, so that the service life of the sealing ring can be prolonged, and the friction area can bear more abrasion.
Preferably, a first counter bore is formed in the top end of the round hole, a first cover plate is fixed in the first counter bore, the round hole is sealed through the first cover plate, and the first cover plate is fixed at the round hole through glue in a preferred mode, so that the sealing effect on the round hole is improved.
Preferably, the sealing assembly comprises a pair of arc-shaped pressing plates which are arranged in the mounting groove and can wrap the sealing ring, the pressing assembly is arranged at the mounting groove, the two pressing plates are pressed towards the middle, and the pressing plates are then made to press the sealing ring, so that sealing is enhanced.
Preferably, the pressing assembly comprises two pairs of threaded holes communicated with the mounting groove, the threaded holes are internally and spirally connected with screws, a pair of sleeves are arranged on the outer cambered surface of the pressing plate, the ends of the screws are propped in the sleeves, the upper and lower two sets of screws are respectively rotated, the pressing plate is downwards pressed by the upper two screws, and the other pressing plate is upwards pushed by the lower two screws, so that the sealing ring is tightly attached to the central shaft.
Preferably, the compressing assembly comprises an air hole communicated with the mounting groove, a second one-way valve is arranged in the air hole, an air tap is arranged at the top end of the second one-way valve, an air charging hole of the air cylinder is aligned with the air tap, then the air is charged, air enters the mounting groove through the second one-way valve, and the two pressing plates tightly attach the sealing ring to the central shaft under the action of air pressure.
Preferably, a second counter bore is formed in the top end of the air hole, a second cover plate is fixed in the second counter bore, the air hole is sealed through the second cover plate, and the second cover plate is fixed at the air hole through glue in a preferred mode, so that the sealing effect on the air hole is improved.
Preferably, the outer cambered surface of the pressing plate is provided with a plurality of groups of positioning blocks which are distributed in a ring-shaped array and the ends of which can prop against the mounting groove, a flow channel is formed between the two positioning blocks of the same group, and the positioning blocks are arranged, so that the two pressing plates can be positioned to be wrapped on the sealing ring, and after the air holes are filled with air, the air can fill the whole mounting groove through the flow channel.
Preferably, the ends of the two pressing plates are respectively provided with a first cambered surface and a second cambered surface, the second cambered surfaces are attached to the first cambered surfaces, and the two pressing plates can form a smaller nearly complete round shape by arranging the first cambered surfaces and the second cambered surfaces, so that the pressure of the pressing plates can uniformly act on the whole outer surface of the sealing ring, and each part of the sealing ring can be better attached to the central shaft.
Compared with the prior art, the invention provides the motor with good overall tightness, which has the following beneficial effects:
1. A motor with good overall tightness is characterized in that a first sealing component is arranged, an air needle on an air cylinder is inserted into an air port, then the air is inflated, air is inflated into an air cavity through a connecting pipe, a sealing ring is inflated and then expands, the friction surface of the sealing ring is tightly attached to a central shaft again, and the first one-way valve can only enter air and cannot exit air, so that air leakage of the sealing ring can be avoided.
2. The utility model provides a motor that wholeness leakproofness is good, through setting up the air cavity in the friction surface position that is located keeping away from the sealing washer, the air cavity is inflated the back, and the expansion takes place to expand and support the inner wall of tight mounting groove in expansion zone, then makes the friction zone paste tight center pin, just so can increase the life of sealing washer for the friction zone can bear more wearing and tearing.
3. A motor with good overall tightness is provided, two pressing plates are pressed towards the middle by arranging a second sealing assembly, and then the pressing plates are pressed against a sealing ring, so that sealing is enhanced.
4. A motor with good overall tightness is characterized in that a first pressing assembly is arranged, two groups of screws at the upper side and the lower side are respectively rotated, a pressing plate is pressed downwards by the two screws at the upper side, and the other pressing plate is pushed upwards by the two screws at the lower side, so that a sealing ring is tightly attached to a central shaft.
5. A motor with good overall tightness is provided with a second pressing assembly, an air charging port of an air cylinder is aligned with an air nozzle, then the air nozzle is inflated, air enters a mounting groove through a second one-way valve, and two pressing plates are tightly attached to a central shaft under the action of air pressure.
6. The utility model provides a motor that wholeness leakproofness is good, just can make two clamp plates form a less nearly complete circular through setting up first cambered surface and second cambered surface to make the pressure of clamp plate can be even on the whole surface of sealing washer, thereby make every position of sealing washer all can be better paste tightly with the center pin.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a motor with good overall tightness;
FIG. 2 is a schematic diagram of the internal structure of a motor with good overall tightness according to the present invention;
fig. 3 is a schematic diagram of a split structure of a motor with good overall tightness according to the present invention;
FIG. 4 is a schematic view of a first seal assembly of an electric motor with good overall tightness according to the present invention;
FIG. 5 is an enlarged schematic view of the motor A with good overall tightness according to the present invention shown in FIG. 4;
FIG. 6 is a schematic cross-sectional view of a seal ring of a motor with good overall tightness according to the present invention;
FIG. 7 is a schematic view of a second seal assembly for an electric motor with improved overall tightness according to the present invention;
FIG. 8 is an enlarged schematic view of the structure of the motor of FIG. 7 at position B with good overall tightness;
FIG. 9 is a schematic diagram of a platen structure of a motor with good overall tightness according to the present invention;
FIG. 10 is a schematic view of a mounting structure of a second compression assembly of a motor with good overall tightness according to the present invention;
fig. 11 is an enlarged view of the structure of the motor C with good overall tightness according to the present invention as shown in fig. 10.
In the figure: 1. a housing; 2. a rotor; 3. a stator; 4. a first end cap; 5. a second end cap; 6. a bearing; 7. a mounting groove; 8. a seal ring; 9. a round hole; 10. a connecting pipe; 11. an air port; 12. a first one-way valve; 13. an air cavity; 14. a pressing plate; 15. a positioning block; 16. a flow channel; 17. a threaded hole; 18. a sleeve; 19. a screw; 20. a first counterbore; 21. a first cover plate; 22. air holes; 23. a second one-way valve; 24. an air tap; 25. a second counterbore; 26. a second cover plate; 27. ear pieces; 28. a bolt assembly; 29. a first cambered surface; 30. and a second cambered surface.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1-11, a motor with good overall tightness comprises a casing 1, a first end cover 4 and a second end cover 5 positioned at two ends of the casing 1, wherein a stator 3 is installed in the casing 1, a rotor 2 positioned on a central axis of the stator 3 is commonly installed between the first end cover 4 and the second end cover 5, a plurality of lugs 27 are arranged at the connecting positions of the casing 1, the first end cover 4 and the second end cover 5, two lugs 27 of the same group are fixedly connected through a bolt assembly 28, a pair of bearings 6 are sleeved on a central shaft of the rotor 2, the two bearings 6 respectively abut against the first end cover 4 and the second end cover 5, an installation groove 7 for installing a sealing ring 8 is formed in the inner surfaces of the first end cover 4 and the second end cover 5, a sealing assembly is arranged at the installation groove 7, and after the sealing ring 8 is worn out to a certain extent, the sealing ring 8 is tightly attached to the central shaft of the rotor 2 again through the sealing assembly.
Further, the sealing assembly comprises a connecting pipe 10, round holes 9 communicated with the mounting grooves 7 are formed in the first end cover 4 and the second end cover 5, the connecting pipe 10 and the sealing ring 8 are integrally formed and can be inserted into the round holes 9, an air cavity 13 is formed in the sealing ring 8, a first one-way valve 12 is fixed in the connecting pipe 10, an air port 11 is formed in the top end of the connecting pipe 10, an air needle on the air cylinder is inserted into the air port 11, then the air is inflated, the air is inflated into the air cavity 13 through the connecting pipe 10, the sealing ring 8 is inflated and then expands, the friction surface of the sealing ring 8 is tightly attached to the central shaft again, and the first one-way valve 12 can only enter air and cannot exit air, so that air leakage of the sealing ring 8 can be avoided.
Further, the air cavity 13 is located at a position far away from the friction surface of the sealing ring 8, the sealing ring 8 forms an expansion area and a friction area respectively at the upper part and the lower part of the air cavity 13, after the air cavity 13 is inflated, the expansion area expands and abuts against the inner wall of the mounting groove 7, and then the friction area is abutted against the central shaft, so that the service life of the sealing ring 8 can be prolonged, and the friction area can bear more abrasion.
Further, a first counter bore 20 is arranged at the top end of the round hole 9, a first cover plate 21 is fixed in the first counter bore 20, the round hole 9 is sealed through the first cover plate 21, and the first cover plate 21 is fixed at the round hole 9 through glue in a preferred mode, so that the sealing effect on the round hole 9 is improved.
Further, the sealing assembly comprises a pair of arc-shaped pressing plates 14 which are arranged in the mounting groove 7 and can wrap the sealing ring 8, the pressing assembly is arranged at the mounting groove 7 and presses the two pressing plates 14 towards the middle, and then the pressing plates 14 press the sealing ring 8, so that sealing is enhanced.
Further, the compressing assembly comprises two pairs of threaded holes 17 communicated with the mounting groove 7, threaded holes 17 are internally and threadedly connected with threaded rods 19, a pair of sleeves 18 are arranged on the outer cambered surface of the pressing plate 14, the end parts of the threaded rods 19 are propped in the sleeves 18, the upper and lower sets of threaded rods 19 are respectively rotated, the upper two threaded rods 19 press the pressing plate 14 downwards, and the lower two threaded rods 19 push the other pressing plate 14 upwards, so that the sealing ring 8 is tightly attached to the central shaft.
Further, the compressing assembly comprises an air hole 22 communicated with the mounting groove 7, a second one-way valve 23 is arranged in the air hole 22, an air tap 24 is arranged at the top end of the second one-way valve 23, an air charging hole of an air cylinder is aligned with the air tap 24, then air is charged, air enters the mounting groove 7 through the second one-way valve 23, and under the action of air pressure, the two pressing plates 14 tightly attach the sealing ring 8 to a central shaft.
Further, the top end of the air hole 22 is provided with a second counter bore 25, a second cover plate 26 is fixed in the second counter bore 25, the air hole 22 is sealed by the second cover plate 26, and the second cover plate 26 is fixed at the air hole 22 by glue in a preferred mode, so that the sealing effect on the air hole 22 is improved.
Further, the outer arc surface of the pressing plate 14 is provided with a plurality of groups of positioning blocks 15 distributed in a ring-shaped array, the ends of the plurality of groups of positioning blocks 15 can prop against the mounting groove 7, a flow channel 16 is formed between the two positioning blocks 15 in the same group, and by arranging the positioning blocks 15, the two pressing plates 14 can be positioned to be wrapped on the sealing ring 8, and after the air holes 22 are filled with air, the air can fill the whole mounting groove 7 through the flow channel 16.
Further, the ends of the two pressing plates 14 are respectively provided with a first cambered surface 29 and a second cambered surface 30, the second cambered surface 30 is attached to the first cambered surface 29, and the two pressing plates 14 can form a smaller almost complete round shape by arranging the first cambered surface 29 and the second cambered surface 30, so that the pressure of the pressing plates 14 can uniformly act on the whole outer surface of the sealing ring 8, and each part of the sealing ring 8 can be better attached to the central shaft.
Working principle: when the sealing ring 8 is worn to a certain extent, the sealing ring 8 is tightly attached to the central shaft of the rotor 2 again through the sealing component;
The two modes of operation of the seal assembly are as follows:
The air needle on the air cylinder is inserted into the air port 11 and then inflated, the air is inflated into the air cavity 13 through the connecting pipe 10, and the sealing ring 8 is inflated and then expanded, so that the friction surface of the sealing ring 8 is tightly attached to the central shaft again;
pressing the two pressing plates 14 toward the middle, and then pressing the pressing plates 14 against the seal ring 8, thereby enhancing the sealing;
two modes of operation of the compression assembly are as follows:
the upper and lower two sets of screws 19 are respectively rotated, the upper two screws 19 press the pressing plate 14 downwards, and the lower two screws 19 push the other pressing plate 14 upwards, so that the sealing ring 8 is tightly attached to the central shaft;
The air inlet of the air cylinder is aligned with the air tap 24, and then the air is inflated, so that the air enters the mounting groove 7 through the second one-way valve 23, and the two pressing plates 14 tightly attach the sealing ring 8 to the central shaft under the action of air pressure.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. The utility model provides a motor that wholeness leakproofness is good, including casing (1) and be located first end cover (4) and second end cover (5) at casing (1) both ends, a serial communication port, install stator (3) in casing (1), install rotor (2) on being located stator (3) axis between first end cover (4) and the second end cover (5) jointly, casing (1), the position that first end cover (4) and second end cover (5) are connected all is equipped with a plurality of ear pieces (27), pass through bolted component (28) fixed connection between two ear pieces (27) of same group, the center pin of rotor (2) is gone up the cover and is equipped with a pair of bearing (6), two bearing (6) offset with first end cover (4) and second end cover (5) respectively, mounting groove (7) that are used for installing sealing washer (8) are all seted up to the internal surface of first end cover (4) and second end cover (5), mounting groove (7) department is provided with seal assembly, after sealing washer (8) receive certain wearing and tearing, make tight center pin (2) of sealing washer (8) again through seal assembly.
2. The motor with good overall tightness according to claim 1, wherein the sealing assembly comprises a connecting pipe (10), round holes (9) communicated with the mounting grooves (7) are formed in the first end cover (4) and the second end cover (5), the connecting pipe (10) and the sealing ring (8) are integrally formed and can be inserted into the round holes (9), an air cavity (13) is formed in the sealing ring (8), a first one-way valve (12) is fixed in the connecting pipe (10), and an air port (11) is formed in the top end of the connecting pipe (10).
3. An electric machine with good overall tightness according to claim 2, characterized in that the air chamber (13) is located at a position remote from the friction surface of the sealing ring (8), the sealing ring (8) forming an expansion zone and a friction zone above and below the air chamber (13), respectively.
4. The motor with good overall tightness according to claim 2, wherein a first counter bore (20) is arranged at the top end of the round hole (9), and a first cover plate (21) is fixed in the first counter bore (20).
5. The motor with good overall tightness according to claim 1, wherein the sealing assembly comprises a pair of arc-shaped pressing plates (14) which are arranged in the mounting groove (7) and can wrap the sealing ring (8), and the pressing assembly is arranged at the mounting groove (7) and used for pressing the pressing plates (14) to the sealing ring (8).
6. The motor with good integral tightness according to claim 5, wherein the compressing assembly comprises two pairs of threaded holes (17) communicated with the mounting groove (7), a screw rod (19) is connected in the threaded holes (17) in a threaded manner, a pair of sleeves (18) are arranged on the outer cambered surface of the pressing plate (14), and the end parts of the screw rod (19) are abutted in the sleeves (18).
7. The motor with good integral tightness according to claim 5, wherein the compressing assembly comprises an air hole (22) communicated with the mounting groove (7), a second one-way valve (23) is mounted in the air hole (22), and an air tap (24) is mounted at the top end of the second one-way valve (23).
8. The motor with good overall tightness according to claim 7, wherein the top end of the air hole (22) is provided with a second counter bore (25), and a second cover plate (26) is fixed in the second counter bore (25).
9. The motor with good overall tightness according to claim 6 or 7, characterized in that the outer arc surface of the pressing plate (14) is provided with a plurality of groups of positioning blocks (15) which are distributed in annular array and the ends of which can prop against the mounting groove (7), and a flow channel (16) is formed between the two positioning blocks (15) of the same group.
10. The motor with good overall tightness according to claim 6 or 7, characterized in that the ends of the two pressing plates (14) are respectively provided with a first cambered surface (29) and a second cambered surface (30), and the second cambered surface (30) is attached to the first cambered surface (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410390652.4A CN117977864B (en) | 2024-04-02 | 2024-04-02 | Motor with good overall sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410390652.4A CN117977864B (en) | 2024-04-02 | 2024-04-02 | Motor with good overall sealing performance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117977864A true CN117977864A (en) | 2024-05-03 |
| CN117977864B CN117977864B (en) | 2024-06-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410390652.4A Active CN117977864B (en) | 2024-04-02 | 2024-04-02 | Motor with good overall sealing performance |
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| Country | Link |
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| CN (1) | CN117977864B (en) |
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| CN217956837U (en) * | 2022-08-29 | 2022-12-02 | 北京石油化工学院 | Sealed housing for wave energy generator |
| CN115714496A (en) * | 2022-12-10 | 2023-02-24 | 上海施依洛风机有限公司 | High-protection and high-corrosion-resistance outer rotor motor |
| CN220368539U (en) * | 2023-05-17 | 2024-01-19 | 常州欧凯电器有限公司 | Air conditioner motor with built-in waterproof sealing structure |
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2024
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| JP2015195647A (en) * | 2014-03-31 | 2015-11-05 | カヤバ工業株式会社 | Electric motor and hydraulic apparatus |
| CN203896087U (en) * | 2014-05-30 | 2014-10-22 | 台州市宙义机电有限公司 | Servo motor |
| CN204985041U (en) * | 2015-07-28 | 2016-01-20 | 裴亚军 | Double sealing's automotive electronics water pump |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN117977864B (en) | 2024-06-04 |
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