CN111969756B - Three-phase motor with protective action - Google Patents
Three-phase motor with protective action Download PDFInfo
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- CN111969756B CN111969756B CN202010869075.9A CN202010869075A CN111969756B CN 111969756 B CN111969756 B CN 111969756B CN 202010869075 A CN202010869075 A CN 202010869075A CN 111969756 B CN111969756 B CN 111969756B
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- end cover
- cover
- sealing
- annular
- wall
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a three-phase motor with a protection effect, which comprises a motor body and an end cover arranged on one side of the motor body, wherein the end cover is provided with a shaft hole for a motor rotating shaft to pass through, the edge of the outer end surface of the end cover is provided with an annular table in a protruding mode, a plurality of inserting grooves are formed in the annular table in the circumferential direction, the outer side of the end cover is detachably connected with an outer connecting sleeve which is coaxially arranged with the end cover, a plurality of through holes corresponding to the inserting grooves are formed in the circumferential direction of the outer connecting sleeve, a check ring is arranged at the port part, far away from the end cover, of each through hole, a sealing cover is coaxially arranged in the outer connecting sleeve, one side, far away from the end cover, of each sealing cover is connected with a plurality of circumferentially distributed connecting rods, each connecting rod is a U. The motor rotating shaft protection device is simple in structure, convenient to install and detach, good in sealing performance and capable of protecting the internal environment of the motor body, and can well protect the motor rotating shaft.
Description
Technical Field
The invention relates to the field of motor production, in particular to a three-phase motor with a protection function.
Background
At present, the motor is mainly used for generating driving torque and converting mechanical energy into electric energy as a power source of electric appliances or various machines. At present, motor on the market mainly includes motor main part and transmission shaft, the transmission shaft sets up at the motor front end, because the transmission shaft position is comparatively outstanding on the motor, easily be collided with when placing for a long time or when the transport removes, make the transmission shaft warp or damage, influence the performance of motor during operation, the transmission shaft can expose in the air always when not using for a long time in addition, receive the corruption easily, influence the structural strength of transmission shaft, for this, we propose a motor with safeguard function.
Disclosure of Invention
The present invention is directed to a three-phase motor with a protection function, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a three-phase motor with guard action, includes motor body, locates the end cover of motor body one side, sets up the shaft hole that the power supply motor pivot passed on the end cover, the outer terminal surface edge arch of end cover has annular platform, and a plurality of slots are seted up to circumference on annular platform.
The outer side of the end cover is detachably connected with an outer connecting sleeve coaxially arranged with the end cover, a plurality of through holes corresponding to the slots are circumferentially formed in the outer connecting sleeve, and a check ring is arranged at the position, far away from the end cover, of one side port of the through hole.
The outer connecting sleeve is internally and coaxially provided with a sealing cover, one side of the sealing cover, which is far away from the end cover, is connected with a plurality of connecting rods which are distributed in the circumferential direction, the connecting rods are U-shaped rods and correspond to the through holes, the other ends of the connecting rods are inserted into the slots through the corresponding through holes, and the tail ends of the connecting rods which are positioned in the slots are fixedly provided with stop blocks.
The middle part of the sealing cover is provided with a mounting hole, the inner wall of the mounting hole is fixedly provided with a central tube for the rotating shaft of the motor to pass through, and the outer side of the central tube is movably sleeved with a telescopic tube.
Furthermore, annular connecting plates are arranged on the outer walls of the annular platform and the outer connecting sleeve on the end cover, a plurality of circumferentially distributed connecting holes are formed in the connecting plates, and the two connecting plates are detachably connected through bolts penetrating through the connecting holes.
Furthermore, the outer ring surface of the sealing cover is connected with the inner wall of the outer connecting sleeve in a sliding mode.
Furthermore, the inner wall of the annular table on the end cover is provided with a pressure bearing table, one side of the pressure bearing table close to the sealing cover is provided with an annular groove, a movable sealing element is arranged in the annular groove, and the inner end surface of the sealing cover is in sealing contact with the movable sealing element.
Furthermore, the section of the channel of the annular groove is in a right trapezoid shape, namely the width of the channel of the annular groove is gradually reduced from outside to inside, the movable sealing element is movably embedded in the annular groove, one side of the sealing cover, which is close to the movable sealing element, is provided with a protrusion, and one end of the movable sealing element extends out of the annular groove and is positioned between the protrusion and the inner wall of the annular table;
the sealing cover is close to the pressure bearing table, the protrusion is driven to extrude the movable sealing element, the movable sealing element moves along the inclined inner wall section of the annular groove until the movable sealing element is in sealing contact with the outer wall of the protrusion.
Further, the movable sealing element is an annular rubber sealing ring.
Furthermore, an annular sealing groove is formed in the outer wall of the protrusion, and a sealing ring matched with the sealing groove is arranged on the inner wall of the movable sealing element.
Further, the end cover and the motor body are welded or integrally formed.
Furthermore, the outer side of the central tube is provided with external threads, and the telescopic tube is spirally arranged on the outer wall of the central tube.
The invention has the beneficial effects that:
the end cover provided by the invention is provided with an annular table, the annular table is provided with slots, an outer connecting sleeve is detachably arranged on the annular table, through holes corresponding to the slots are arranged on the outer connecting sleeve, a sealing cover is arranged in the outer connecting sleeve, a mounting hole for the motor rotating shaft to pass through is arranged on the sealing cover, a central pipe is arranged in the mounting hole, a telescopic pipe is connected to the outer side of the central pipe, the telescopic pipe and the central pipe can play a good protection role corresponding to the motor rotating shaft, the sealing cover provided by the device can slide along the direction of sliding fit of the connecting rod, the slots and the through holes, the sliding direction is consistent with the axial direction of the motor rotating shaft, so that the motor rotating shaft can be effectively protected according to the motor rotating shafts with different lengths, and the sealing cover provided by the device is in sealing contact with a pressure bearing table on the inner wall of the end cover, further prolonging the service life of the device.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a perspective view of the overall construction of the present invention;
FIG. 2 is an elevational view of the overall construction of the present invention;
FIG. 3 is a cross-sectional view taken at D-D of FIG. 2 in accordance with the present invention;
FIG. 4 is an enlarged view of FIG. 3 at A according to the present invention.
In the figure: the motor comprises a motor body 1, an end cover 2, a sealing cover 3, an outer connecting sleeve 4, a central pipe 5, an extension pipe 6, a connecting rod 7, a protrusion 8, a movable sealing element 9, an annular groove 10, a slot 11, a stop block 12, a connecting plate 13, a retainer ring 14, a sealing ring 15, a motor rotating shaft 16, a shaft hole 17, a pressure-bearing platform 18 and a through hole 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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:
referring to fig. 1-2, a three-phase motor with a protection effect comprises a motor body 1 and an end cover 2 arranged on one side of the motor body 1, wherein a shaft hole 17 for a motor rotating shaft 16 to pass through is formed in the end cover 2, an annular table is protruded on the edge of the outer end face of the end cover 2, a plurality of slots 11 are formed in the annular table in the circumferential direction, and a bearing connected with the motor in a matched mode is installed in the shaft hole 17, so that the device is more stable and reliable in matching.
The outer side of the end cover 2 is detachably connected with an outer connecting sleeve 4 which is coaxial with the end cover, a plurality of through holes 19 corresponding to the slots 11 are circumferentially formed in the outer connecting sleeve 4, and a retainer ring 14 is arranged at one side port of each through hole 19, which is far away from the end cover 2; the stopper 14 is made of rubber and blocks the stopper 12 from being drawn out of the through hole 19.
The coaxial sealed lid 3 that is provided with in the outer adapter sleeve 4, the one side that the end cover 2 was kept away from to sealed lid 3 is connected with the connecting rod 7 of a plurality of circumference distributions, connecting rod 7 is the U-shaped pole and corresponds with through-hole 19, and the other end of connecting rod 7 inserts slot 11 through corresponding through-hole 19 in, and the connecting rod 7 end that is located slot 11 is fixed with dog 12.
The middle part of the sealing cover 3 is provided with a mounting hole, the inner wall of the mounting hole is fixed with a central tube 5 for a motor rotating shaft 16 to penetrate through, and the outer side of the central tube 5 is movably sleeved with a telescopic tube 6.
Furthermore, the annular platform on the end cover 2 and the outer wall of the outer connecting sleeve 4 are both provided with annular connecting plates 13, a plurality of circumferentially distributed connecting holes are formed in the connecting plates 13, and the two connecting plates 13 are detachably connected through bolts penetrating into the connecting holes; the installation and the disassembly are convenient.
Further, the outer ring surface of the sealing cover 3 is in sliding connection with the inner wall of the outer connecting sleeve 4; the connecting structure between the end cover 3 and the outer connecting sleeve 4 is more stable and reliable.
Example 2:
referring to fig. 3 and 4, the present embodiment is a further improvement on embodiment 1, a pressure-bearing platform 18 is provided on an inner wall of an annular platform on the end cover 2, an annular groove 10 is provided on one side of the pressure-bearing platform 18 close to the sealing cover 3, a movable sealing member 9 is provided in the annular groove 10, and an inner end surface of the sealing cover 3 is in sealing contact with the movable sealing member 9; the sealing performance of the device can be further improved by the movable sealing ring 9.
Furthermore, the section of the channel of the annular groove 10 is a right trapezoid, that is, the width of the channel of the annular groove 10 is gradually reduced from outside to inside, the movable sealing element 9 is movably embedded in the annular groove 10, a protrusion 8 is arranged on one side of the sealing cover 3 close to the movable sealing element 9, and one end of the movable sealing element 9 extends out of the annular groove 10 and is positioned between the protrusion 8 and the inner wall of the annular table;
the sealing cover 3 is close to the pressure bearing table 18, and drives the protrusion 8 to extrude the movable sealing element 9, so that the movable sealing element 9 moves along the inclined inner wall section of the annular groove 10 until the movable sealing element 9 is in sealing contact with the outer wall of the protrusion 8.
Further, the movable sealing element 9 is an annular rubber sealing ring.
Further, an annular sealing groove is formed in the outer wall of the protrusion 8, and a sealing ring 15 matched with the sealing groove is arranged on the inner wall of the movable sealing element 9; further improving the sealing effect of the device.
Further, the end cover 2 and the motor body 1 are welded or integrally formed; the processing is convenient.
Further, an external thread is arranged on the outer side of the central tube 5, and the telescopic tube 6 is spirally arranged on the outer wall of the central tube 5; the telescopic pipe 6 is convenient to mount and dismount, the length of a pipeline formed by the telescopic pipe 6 and the central pipe 5 can be adjusted, and the adjustment can be conveniently carried out according to motor rotating shafts with different lengths.
When the invention is used, the end cover 2 of the motor is provided with the annular table, the annular table is provided with the slots 11, then the annular table is detachably provided with the outer connecting sleeve 4, the outer connecting sleeve 4 is provided with the through holes 19 opposite to the slots 11, the sealing cover is arranged in the outer connecting sleeve and is provided with the mounting hole for the motor rotating shaft to pass through, the mounting hole is internally provided with the central pipe, the outer side of the central pipe is connected with the telescopic pipe 6, the telescopic pipe 6 and the central pipe 5 can play a good protection role corresponding to the motor rotating shaft, the sealing cover provided by the device can slide along the direction in which the connecting rod 7, the slots and the through holes are in sliding fit, the sliding direction is consistent with the axial direction of the motor rotating shaft, so that the motor rotating shaft with different lengths can be effectively protected, and the sealing cover provided by the device is in sealing contact with the pressure-bearing table, thereby further improve end cover 2 and to the sealed guard action of motor body 1, further prolong the life of device.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a three-phase motor with guard action, includes motor body (1), locates end cover (2) of motor body (1) one side, sets up shaft hole (17) that power supply motor shaft (16) passed on end cover (2), its characterized in that: an annular table is protruded on the edge of the outer end face of the end cover (2), and a plurality of slots (11) are formed in the circumferential direction of the annular table;
an outer connecting sleeve (4) which is coaxial with the end cover (2) is detachably connected to the outer side of the end cover (2), a plurality of through holes (19) corresponding to the slots (11) are circumferentially formed in the outer connecting sleeve (4), and a retainer ring (14) is arranged at one side port of each through hole (19) far away from the end cover (2);
a sealing cover (3) is coaxially arranged in the outer connecting sleeve (4), one side, far away from the end cover (2), of the sealing cover (3) is connected with a plurality of circumferentially distributed connecting rods (7), each connecting rod (7) is a U-shaped rod and corresponds to the through hole (19), the other end of each connecting rod (7) is inserted into the corresponding slot (11) through the corresponding through hole (19), and a stop block (12) is fixed at the tail end of each connecting rod (7) located in the corresponding slot (11);
a mounting hole is formed in the middle of the sealing cover (3), a central pipe (5) for a motor rotating shaft (16) to penetrate through is fixed on the inner wall of the mounting hole, and a telescopic pipe (6) is movably sleeved on the outer side of the central pipe (5);
a pressure bearing table (18) is arranged on the inner wall of the annular table on the end cover (2), an annular groove (10) is formed in one side, close to the sealing cover (3), of the pressure bearing table (18), a movable sealing element (9) is arranged in the annular groove (10), and the inner end face of the sealing cover (3) is in sealing contact with the movable sealing element (9);
the section of the channel of the annular groove (10) is in a right trapezoid shape, the width of the channel of the annular groove (10) is gradually reduced from outside to inside, the movable sealing element (9) is movably embedded in the annular groove (10), a protrusion (8) is arranged on one side, close to the movable sealing element (9), of the sealing cover (3), and one end of the movable sealing element (9) extends out of the annular groove (10) and is located between the protrusion (8) and the inner wall of the annular table;
the sealing cover (3) is close to the pressure bearing table (18) and drives the protrusion (8) to extrude the movable sealing element (9), so that the movable sealing element (9) moves along the inclined inner wall section of the annular groove (10), and the movable sealing element (9) is in sealing contact with the outer wall of the protrusion (8).
2. A three-phase electric machine with protective action, according to claim 1, characterized in that: annular connecting plates (13) are arranged on the outer walls of the annular table and the outer connecting sleeve (4) on the end cover (2), a plurality of circumferentially distributed connecting holes are formed in the connecting plates (13), and the two connecting plates (13) are detachably connected through bolts penetrating through the connecting holes.
3. A three-phase electric machine with protective action, according to claim 1, characterized in that: the outer ring surface of the sealing cover (3) is in sliding connection with the inner wall of the outer connecting sleeve (4).
4. A three-phase electric machine with protective action, according to claim 1, characterized in that: the movable sealing element (9) is an annular rubber sealing ring.
5. The three-phase motor with a protective effect according to claim 4, characterized in that: the outer wall of the bulge (8) is provided with an annular sealing groove, and the inner wall of the movable sealing element (9) is provided with a sealing ring (15) matched with the sealing groove.
6. A three-phase electric machine with protective action, according to claim 1, characterized in that: the end cover (2) and the motor body (1) are welded or integrally formed.
7. A three-phase electric machine with protective action, according to claim 1, characterized in that: the outer side of the central pipe (5) is provided with an external thread, and the telescopic pipe (6) is spirally arranged on the outer wall of the central pipe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010869075.9A CN111969756B (en) | 2020-08-26 | 2020-08-26 | Three-phase motor with protective action |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010869075.9A CN111969756B (en) | 2020-08-26 | 2020-08-26 | Three-phase motor with protective action |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111969756A CN111969756A (en) | 2020-11-20 |
| CN111969756B true CN111969756B (en) | 2021-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010869075.9A Active CN111969756B (en) | 2020-08-26 | 2020-08-26 | Three-phase motor with protective action |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111969756B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208348622U (en) * | 2018-05-15 | 2019-01-08 | 常州兰陵自动化设备有限公司 | The motor and box body connecting structure of intelligent valve electric device |
| CN210536392U (en) * | 2019-10-28 | 2020-05-15 | 佛山市晶本电机有限公司 | Outer rotor permanent magnet synchronous motor structure |
| CN210724396U (en) * | 2019-12-04 | 2020-06-09 | 焜月电器科技(常州)有限公司 | Motor aluminum end cover convenient to install |
| CN210806980U (en) * | 2019-12-26 | 2020-06-19 | 深圳市国领微特电机有限公司 | Novel protection device of direct current motor |
-
2020
- 2020-08-26 CN CN202010869075.9A patent/CN111969756B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208348622U (en) * | 2018-05-15 | 2019-01-08 | 常州兰陵自动化设备有限公司 | The motor and box body connecting structure of intelligent valve electric device |
| CN210536392U (en) * | 2019-10-28 | 2020-05-15 | 佛山市晶本电机有限公司 | Outer rotor permanent magnet synchronous motor structure |
| CN210724396U (en) * | 2019-12-04 | 2020-06-09 | 焜月电器科技(常州)有限公司 | Motor aluminum end cover convenient to install |
| CN210806980U (en) * | 2019-12-26 | 2020-06-19 | 深圳市国领微特电机有限公司 | Novel protection device of direct current motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111969756A (en) | 2020-11-20 |
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