CN113381645A - Self-locking motor and gate in power failure - Google Patents
Self-locking motor and gate in power failure Download PDFInfo
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- CN113381645A CN113381645A CN202110620648.9A CN202110620648A CN113381645A CN 113381645 A CN113381645 A CN 113381645A CN 202110620648 A CN202110620648 A CN 202110620648A CN 113381645 A CN113381645 A CN 113381645A
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- 230000009467 reduction Effects 0.000 claims description 34
- 230000005540 biological transmission Effects 0.000 claims description 28
- 238000010521 absorption reaction Methods 0.000 claims description 12
- 239000003638 chemical reducing agent Substances 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 description 7
- 238000013459 approach Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/02—Details of stopping control
- H02P3/04—Means for stopping or slowing by a separate brake, e.g. friction brake or eddy-current brake
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
- E01F13/04—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage
- E01F13/044—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage the barrier being formed by obstructing members situated on, flush with, or below the traffic surface, e.g. with inflatable members on the surface
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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
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The application discloses outage is from locking-type motor and floodgate machine. The power-off self-locking motor comprises a shell, a rotor, a polygonal limiting sheet arranged on the rotor and a locking device; the locking device comprises an electromagnetic adsorption piece fixedly connected with the shell, an upper friction plate movably arranged on the electromagnetic adsorption piece, a lower friction plate positioned between the upper friction plate and the electromagnetic adsorption piece, a limiting friction plate positioned between the upper friction plate and the lower friction plate, and an elastic piece arranged between the lower friction plate and the electromagnetic adsorption piece; the electromagnetic adsorption piece can generate magnetic attraction force on the upper friction plate and the lower friction plate; the rotor is provided with a polygonal limiting hole, the rotor penetrates through the polygonal limiting hole, and when the polygonal limiting piece is located in the polygonal limiting hole, the rotor can be limited to rotate by the limiting friction piece. The polygonal limiting hole in the limiting friction plate is matched with the polygonal limiting piece in the rotor, and the brake is locked in a manner of being meshed with the upper teeth and the lower teeth, so that the cost of the brake is reduced.
Description
Technical Field
The application relates to the field of pedestrian passageway access management equipment, in particular to a self-locking motor and a gate for power failure.
Background
The gate is used as a pedestrian passageway access management device, and needs to be locked in certain use states so as to prevent pedestrians from passing through. The existing mode is that, adopt electromagnetic clutch, through tooth meshing about the circular telegram time, lock the floodgate machine core transmission shaft, make the floodgate machine lock die, its main problem lies in: the requirement on the precision of a fixing piece of the clutch is high, and the upper and lower teeth are easy to be dislocated, so that the upper and lower teeth cannot be completely meshed, and a brake cannot be locked; and the clutch is high in processing difficulty, and the upper and lower teeth need certain strength to prevent impact, so that the overall cost is high.
Disclosure of Invention
An object of this application is to provide a outage is from locking-type motor, aims at solving prior art, and floodgate machine auto-lock structure is with high costs problem.
To achieve the purpose, the embodiment of the application adopts the following technical scheme:
the outage self-locking type motor comprises a shell, a rotor rotatably arranged in the shell, a polygonal limiting piece arranged on the rotor and a locking device arranged in the shell; the locking device comprises an electromagnetic adsorption piece fixedly connected with the shell, an upper friction plate movably arranged on the electromagnetic adsorption piece, a lower friction plate positioned between the upper friction plate and the electromagnetic adsorption piece, a limiting friction plate positioned between the upper friction plate and the lower friction plate, and an elastic piece arranged between the lower friction plate and the electromagnetic adsorption piece; the electromagnetic adsorption piece can generate magnetic attraction force on the upper friction plate and the lower friction plate; the rotor is provided with a polygonal limiting hole, the rotor penetrates through the polygonal limiting hole, and when the polygonal limiting piece is located in the polygonal limiting hole, the rotor can be limited to rotate by the limiting friction piece.
In one embodiment, the upper friction plate is provided with a first yielding hole, the lower friction plate is provided with a second yielding hole, and the rotor penetrates through the first yielding hole and the second yielding hole.
In one embodiment, the electromagnetic adsorption member is provided with a plurality of threaded holes, the upper friction plate is provided with sliding holes corresponding to the threaded holes one to one, and mounting screws are arranged between the electromagnetic adsorption member and the upper friction plate and penetrate through the sliding holes and are in threaded connection with the threaded holes.
In one embodiment, the locking device further comprises a limiting cylinder surrounding the mounting screw, and the limiting cylinder is located on one side, opposite to the lower friction plate, of the upper friction plate.
In one embodiment, the edge of the lower friction plate is provided with a plurality of limiting notches, and one side of the limiting cylinder, which is far away from the upper friction plate, is inserted into the limiting notches.
In one embodiment, a third yielding hole is formed in the electromagnetic absorption piece, the rotor penetrates through the third yielding hole, a first bearing and a second bearing are arranged on the rotor, the first bearing is located on one side, away from the second bearing, of the electromagnetic absorption piece, and the first bearing and the second bearing are both installed in the shell.
In one embodiment, the electromagnetic absorption member is provided with a mounting hole, the elastic member is a spring, and the elastic member is mounted in the mounting hole.
In one embodiment, the power-off self-locking motor further comprises a coupler in transmission connection with the rotor, and a planetary reducer in transmission connection with the coupler.
In one embodiment, the coupling is provided with a first sun gear, the planetary reducer comprises a reduction box body with an inner gear ring, a first reduction transmission disc which is rotatably installed in the reduction box body and is provided with a second sun gear, a first planet gear assembly which is rotatably installed in the first reduction transmission disc and is meshed with the first sun gear, a second reduction transmission disc which is rotatably installed in the reduction box body and is provided with a reduction transmission shaft, and a second planet gear assembly which is rotatably installed in the second reduction transmission disc and is meshed with the second sun gear.
In one embodiment, a third bearing and a fourth bearing are arranged on the speed reduction transmission shaft, and the third bearing and the fourth bearing are both arranged on the speed reduction box body; the power-off self-locking motor also comprises a sealing cover detachably connected with the shell, the rotor is rotationally connected with the sealing cover, and a permanent magnet is further arranged on the rotor; the polygon limiting pieces are quadrilateral limiting pieces, the polygon limiting holes are square holes, and chamfers are arranged between adjacent edges of the polygon limiting pieces.
The application aims to provide a gate which comprises the outage self-locking type motor.
The beneficial effects of the embodiment of the application are as follows: when the power-off self-locking motor stops working, namely, in the power-off state, the elastic part is compressed. When the elastic piece resets, the lower friction plate and the upper friction plate can be driven to move along the axial direction of the rotor, and when the lower friction plate and the upper friction plate move, the limiting friction plate is driven to move, so that the polygonal limiting plate on the rotor is inserted into the polygonal limiting hole on the limiting friction plate. At the moment, the polygonal limiting plate on the rotor is limited by the inner wall of the polygonal limiting hole in the limiting friction plate, and the polygonal limiting plate cannot rotate along with the rotor, so that the self-locking of the motor is realized in a power-off state. When the outage self-locking motor is applied to the gate, self-locking of the gate in outage can be achieved. Adopt the spacing hole of polygon on the spacing friction disc, with the spacing piece complex auto-lock mode of polygon on the rotor, for among the prior art, through going up the lower teeth meshing during the circular telegram, lock the dead mode of floodgate machine core transmission shaft, the meshing precision of tooth about need not to consider, and then reduce floodgate machine auto-lock structure's cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a power-off self-locking motor in an embodiment of the present application;
FIG. 2 is a cross-sectional view of a power-off self-locking motor in an embodiment of the present application;
FIG. 3 is a partial cross-sectional view of a power-off self-locking motor at a locking device in an embodiment of the present application;
FIG. 4 is an exploded view of a power down self-locking motor in an embodiment of the present application;
FIG. 5 is a schematic diagram of an internal structure of a power-off self-locking motor at a locking device according to an embodiment of the present application;
FIG. 6 is a schematic structural view of a rotor in an embodiment of the present application;
FIG. 7 is an exploded view of a locking device in an embodiment of the present application;
FIG. 8 is an exploded view of a planetary reducer in an embodiment of the present application;
in the figure:
1. a housing; 2. a rotor; 3. a polygonal limiting sheet; 4. a locking device; 401. an electromagnetic adsorption member; 402. an upper friction plate; 4021. a first abdicating hole; 403. a lower friction plate; 4031. a second abdicating hole; 4032. a limiting notch; 404. limiting the friction plate; 4041. a polygonal limiting hole; 405. an elastic member; 406. mounting screws; 407. a limiting cylinder; 5. a first bearing; 6. a second bearing; 7. a coupling; 701. a first sun gear; 8. a planetary reducer; 801. a reduction box body; 802. a first reduction drive disk; 803. a first planet gear assembly; 804. a second reduction drive disk; 805. a reduction drive shaft; 806. a second sun gear; 807. a second planet wheel assembly; 9. a third bearing; 10. a fourth bearing; 11. sealing the cover; 12. and a permanent magnet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
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 be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
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 application, "a plurality" means two or more unless specifically limited otherwise.
The following detailed description of implementations of the present application is provided in conjunction with specific embodiments.
As shown in fig. 1-3, the embodiment of the present application provides a power-off self-locking motor, which includes a housing 1, a rotor 2 rotatably installed in the housing 1, a polygonal limiting plate 3 installed on the rotor 2, and a locking device 4 installed in the housing 1; the locking device 4 comprises an electromagnetic adsorption piece 401 fixedly connected with the shell 1, an upper friction plate 402 movably arranged on the electromagnetic adsorption piece 401, a lower friction plate 403 positioned between the upper friction plate 402 and the electromagnetic adsorption piece 401, a limiting friction plate 404 positioned between the upper friction plate 402 and the lower friction plate 403, and an elastic piece 405 arranged between the lower friction plate 403 and the electromagnetic adsorption piece 401; the electromagnetic adsorption member 401 can generate magnetic attraction force on the upper friction plate 402 and the lower friction plate 403; the limiting friction plate 404 is provided with a polygonal limiting hole 4041, the rotor 2 penetrates through the polygonal limiting hole 4041, and when the polygonal limiting plate 3 is located in the polygonal limiting hole 4041, the limiting friction plate 404 can limit the rotor 2 to rotate.
The rotor 2 rotates to output the power of the motor, and the locking device 4 is used for selectively locking the rotor 2. The electromagnetic absorption member 401 can generate strong magnetic force to absorb the upper friction plate 402 and the lower friction plate 403 to move along the axial direction of the rotor 2, and the polygonal limiting plate 3 on the rotor 2 leaves the polygonal limiting hole 4041 on the limiting friction plate 404, at this time, the elastic member 405 is compressed. When the elastic element 405 is reset, the lower friction plate 403 and the upper friction plate 402 can be driven to move along the axial direction of the rotor 2, and when the lower friction plate 403 and the upper friction plate 402 move, the limiting friction plate 404 is driven to move, so that the polygonal limiting plate 3 on the rotor 2 is inserted into the polygonal limiting hole 4041 on the limiting friction plate 404.
In the embodiment of this application, when the outage is from locking-type motor circular telegram during operation, electromagnetism adsorbs piece 401 and produces strong magnetism, will go up friction disc 402 and lower friction disc 403 and extrude toward the electromagnetism piece's direction under the effect of strong magnetic attraction, and then make spacing friction disc 404 compress tightly by last friction disc 402 and lower friction disc 403, spacing friction disc 404 can't go up friction disc 402 relatively and friction disc 403 rotates down. When the upper friction plate 402 and the lower friction plate 403 are attracted and moved by the electromagnetic attraction member 401, the limit friction plate 404 is driven to move along the axial direction of the rotor 2, and the polygonal limit plate 3 on the rotor 2 is separated from the polygonal limit hole 4041 on the limit friction plate 404. At this time, the polygonal limiting plate 3 on the rotor 2 cannot be limited by the inner wall of the polygonal limiting hole 4041 on the limiting friction plate 404, the polygonal limiting plate 3 can rotate along with the rotor 2, normal operation of the power-off self-locking motor is further realized, and the elastic part 405 is compressed at this time.
When the self-locking motor is stopped, the elastic member 405 is compressed. When the elastic element 405 is reset, the lower friction plate 403 and the upper friction plate 402 can be driven to move along the axial direction of the rotor 2, and when the lower friction plate 403 and the upper friction plate 402 move, the limiting friction plate 404 is driven to move, so that the polygonal limiting plate 3 on the rotor 2 is inserted into the polygonal limiting hole 4041 on the limiting friction plate 404. At this time, the polygonal limiting plate 3 on the rotor 2 is limited by the inner wall of the polygonal limiting hole 4041 on the limiting friction plate 404, and the polygonal limiting plate 3 cannot rotate along with the rotor 2, so that the self-locking of the motor is realized in a power-off state. When the outage self-locking motor is applied to the gate, self-locking of the gate in outage can be achieved. Adopt the spacing hole 4041 of polygon on the spacing friction disc 404, with the spacing piece 3 complex of polygon on the rotor 2 auto-lock mode, for among the prior art, through going up the meshing of lower teeth during the circular telegram, lock the floodgate core transmission shaft, make the dead mode of floodgate machine lock, need not to consider the precision of upper and lower tooth meshing, and then reduce the cost of floodgate machine auto-lock structure.
Referring to fig. 7, as another embodiment of the power-off self-locking motor provided in the present application, the upper friction plate 402 has a first yielding hole 4021, the lower friction plate 403 has a second yielding hole 4031, and the rotor 2 penetrates through the first yielding hole 4021 and the second yielding hole 4031. That is, the rotor 2 penetrates the whole locking device 4, and when the locking device 4 locks the rotor 2, the force is applied to the rotor 2 in the middle of the rotor 2, so that the rotor 2 is not easy to deflect radially.
Referring to fig. 3-4 and 7, as another embodiment of the power-off self-locking motor provided in the present application, a plurality of threaded holes are formed in the electromagnetic adsorption member 401, sliding holes corresponding to the threaded holes one to one are formed in the upper friction plate 402, mounting screws 406 are disposed between the electromagnetic adsorption member 401 and the upper friction plate 402, and the mounting screws 406 penetrate through the sliding holes and are in threaded connection with the threaded holes. That is, the upper friction plate 402 is movably attached to the electromagnetic attraction member 401 by the attachment screw 406, and the upper friction plate 402 is movable in the axial direction of the attachment screw 406 and further movable in the axial direction of the attachment screw 406 and the rotor 2 when receiving the magnetic attraction force of the electromagnetic attraction member 401.
Referring to fig. 5-7, as another embodiment of the power-off self-locking motor provided in the present application, the locking device 4 further includes a limiting cylinder 407 surrounding the mounting screw 406, and the limiting cylinder 407 is located on a side of the upper friction plate 402 opposite to the lower friction plate 403. Therefore, when the upper friction plate 402 is moved in the axial direction of the mounting screw 406 and the rotor 2 by the magnetic attraction force of the electromagnetic attraction member 401, the upper friction plate is pushed against the stopper cylinder 407 after moving for a certain distance, thereby preventing the upper stopper plate from moving for an excessively long distance.
Referring to fig. 5, as another embodiment of the power-off self-locking motor provided in the present application, a plurality of limit notches 4032 are formed in an edge of the lower friction plate 403, and one side of the limit cylinder 407, which is away from the upper friction plate 402, is inserted into the limit notch 4032. Therefore, the lower friction plate 403 is restrained by the restraining cylinder 407 and can only move in the axial direction of the rotor 2, but cannot rotate around the axial direction of the rotor 2. After the upper friction plate 402 and the lower friction plate 403 compress the limiting friction plate 404, the limiting friction plate 404 cannot rotate around the axial direction of the rotor 2, and further more tightly limits the polygonal limiting plate 3, so that the rotor 2 is clamped, and the self-locking of the motor is realized.
Referring to fig. 2-3 and fig. 6, as another embodiment of the power-off self-locking motor provided in the present application, a third yielding hole is formed in the electromagnetic absorption member 401, the rotor 2 penetrates through the third yielding hole, a first bearing 5 and a second bearing 6 are disposed on the rotor 2, the first bearing 5 is located on a side of the electromagnetic absorption member 401 away from the second bearing 6, and the first bearing 5 and the second bearing 6 are both mounted in the housing 1. First bearing 5 and second bearing 6 rotate rotor 2 in the relative both sides of electromagnetic adsorption piece 401 and support, guarantee the stability when rotor 2 rotates, and then make the motor rotate more stably at the during operation.
Referring to fig. 2-3 and fig. 7, as another embodiment of the power-off self-locking motor provided in the present application, an electromagnetic absorption member 401 is provided with a mounting hole, an elastic member 405 is a spring, and the elastic member 405 is mounted in the mounting hole. When the spring is compressed or reset along the self axial direction, the mounting hole can be used as a limiting piece of the spring, so that the deflection of the spring is avoided, and the spring approaches to a state of only generating compression and extension along the self axial direction.
Referring to fig. 1-2, as another embodiment of the power-off self-locking motor provided by the present application, the power-off self-locking motor further includes a coupling 7 in transmission connection with the rotor 2, and a planetary reducer 8 in transmission connection with the coupling 7. On the one hand, planetary reducer 8 can reduce outside torsion step by step for the torsion that transmits to electric motor rotor 2 department is far less than external force, and then cooperates above-mentioned locking device 4's spacing friction disc 404 to carry on spacingly to the spacing piece 3 of polygon, locks spacingly in two of rotor 2 to rotor 2, makes rotor 2 by inseparable locking, promotes the intensity of motor auto-lock.
Referring to fig. 2 and 8, as another embodiment of the power-off self-locking motor provided in the present application, a first sun gear 701 is disposed on the coupling 7, the planetary reducer 8 includes a reduction box 801 having an annular gear (the annular gear is engaged with the first planetary gear assembly 803 and the second planetary gear assembly 807), a first reduction transmission disc 802 rotatably mounted in the reduction box 801 and having a second sun gear 806, a first planetary gear assembly 803 rotatably mounted in the first reduction transmission disc 802 and engaged with the first sun gear 701, a second reduction transmission disc 804 rotatably mounted in the reduction box 801 and having a reduction transmission shaft 805, and a second planetary gear assembly 807 rotatably mounted in the second reduction transmission disc 804 and engaged with the second sun gear 806. Also, planetary reducer 8 adopts the structure of multistage speed reduction for outside conduction's torsion can be very big reduce step by step and approach to static, and external force is difficult for driving rotor 2 and rotates, and the spacing friction disc 404 of cooperation locking device 4 carries on spacingly to the spacing piece 3 of polygon, can be better with rotor 2 locking, and then realize the firm locking of motor under the outage condition.
Referring to fig. 2 and 8, as another embodiment of the power-off self-locking motor provided in the present application, a third bearing 9 and a fourth bearing 10 are disposed on a reduction transmission shaft 805, and both the third bearing 9 and the fourth bearing 10 are mounted on a reduction box 801; the third bearing 9 and the fourth bearing 10 can provide stable rotational support for the reduction transmission shaft 805 at two positions.
The outage self-locking motor further comprises a sealing cover 11 detachably connected with the shell 1, the rotor 2 is rotatably connected with the sealing cover 11, the first bearing 5 can be mounted on the sealing cover 11, the second bearing 6 can be mounted at the bottom of the shell 1 (opposite to the sealing cover 11), and therefore the first bearing 5 and the second bearing 6 can exert rotating support on the rotor 2 at two ends of the motor.
The rotor 2 is also provided with a permanent magnet 12 which is matched with a coil of the motor so as to drive the rotor 2 to rotate. The polygon limiting piece 3 is limited to be a quadrilateral limiting piece, and the polygon limiting hole 4041 is a square hole, so that the polygon limiting piece 3 cannot rotate in the polygon limiting hole 4041, and locking and limiting are achieved. The adjacent sides of the polygon limiting pieces 3 are provided with chamfers, so that the polygon limiting pieces 3 can be conveniently inserted into the polygon limiting holes 4041 on one hand, and the connection parts of the adjacent sides of the polygon limiting pieces 3 are prevented from contacting with the inner wall of the polygon limiting holes 4041 to damage the polygon limiting pieces 3 on the other hand.
The embodiment of the application provides a gate, which comprises any one of the power-off self-locking type motors. When the floodgate machine is closed, the outage stops working under the self-locking motor outage state: the elastic member 405 is compressed at this time. When the elastic element 405 is reset, the lower friction plate 403 and the upper friction plate 402 can be driven to move along the axial direction of the rotor 2, and when the lower friction plate 403 and the upper friction plate 402 move, the limiting friction plate 404 is driven to move, so that the polygonal limiting plate 3 on the rotor 2 is inserted into the polygonal limiting hole 4041 on the limiting friction plate 404. At this time, the polygonal limiting plate 3 on the rotor 2 is limited by the inner wall of the polygonal limiting hole 4041 on the limiting friction plate 404, and the polygonal limiting plate 3 cannot rotate along with the rotor 2, so that the self-locking of the motor is realized in a power-off state. When the outage self-locking motor is applied to the gate, self-locking of the gate in outage can be achieved. Adopt the spacing hole 4041 of polygon on the spacing friction disc 404, with the spacing piece 3 complex of polygon on the rotor 2 auto-lock mode, for among the prior art, through going up the meshing of lower teeth during the circular telegram, lock the floodgate core transmission shaft, make the dead mode of floodgate machine lock, need not to consider the precision of upper and lower tooth meshing, and then reduce the cost of floodgate machine auto-lock structure.
It is to be understood that aspects of the present invention may be practiced otherwise than as specifically described.
It should be understood that the above examples are merely examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.
Claims (10)
1. The outage self-locking type motor is characterized by comprising a shell, a rotor rotatably arranged in the shell, a polygonal limiting piece arranged on the rotor, and a locking device arranged in the shell; the locking device comprises an electromagnetic adsorption piece fixedly connected with the shell, an upper friction plate movably arranged on the electromagnetic adsorption piece, a lower friction plate positioned between the upper friction plate and the electromagnetic adsorption piece, a limiting friction plate positioned between the upper friction plate and the lower friction plate, and an elastic piece arranged between the lower friction plate and the electromagnetic adsorption piece; the electromagnetic adsorption piece can generate magnetic attraction force on the upper friction plate and the lower friction plate; the rotor is provided with a polygonal limiting hole, the rotor penetrates through the polygonal limiting hole, and when the polygonal limiting piece is located in the polygonal limiting hole, the rotor can be limited to rotate by the limiting friction piece.
2. The power-off self-locking type motor according to claim 1, wherein the upper friction plate is provided with a first yielding hole, the lower friction plate is provided with a second yielding hole, and the rotor penetrates through the first yielding hole and the second yielding hole.
3. The power-off self-locking type motor according to claim 2, wherein the electromagnetic absorption member is provided with a plurality of threaded holes, the upper friction plate is provided with sliding holes corresponding to the threaded holes one to one, and a mounting screw is arranged between the electromagnetic absorption member and the upper friction plate and penetrates through the sliding holes and is in threaded connection with the threaded holes.
4. The power-off self-locking type motor according to claim 3, wherein the locking device further comprises a limiting cylinder surrounding the mounting screw, and the limiting cylinder is positioned on one side of the upper friction plate, which faces the lower friction plate.
5. The power-off self-locking type motor according to claim 4, wherein a plurality of limiting notches are formed in the edge of the lower friction plate, and one side of the limiting cylinder, which is far away from the upper friction plate, is inserted into the limiting notches.
6. The power-off self-locking type motor according to claim 2, wherein a third yielding hole is formed in the electromagnetic absorption member, the rotor penetrates through the third yielding hole, a first bearing and a second bearing are arranged on the rotor, the first bearing is located on one side, away from the second bearing, of the electromagnetic absorption member, and the first bearing and the second bearing are both installed in the housing.
7. The power-off self-locking type motor according to claim 1, wherein the electromagnetic absorption member is provided with a mounting hole, the elastic member is a spring, and the elastic member is mounted in the mounting hole.
8. A power-off self-locking motor according to any one of claims 1 to 7, further comprising a coupler in transmission connection with the rotor, and a planetary reducer in transmission connection with the coupler.
9. The power-off self-locking type motor according to claim 8, wherein the coupling is provided with a first sun gear, the planetary reducer comprises a reduction box body with an inner gear ring, a first reduction transmission disc rotatably mounted in the reduction box body and provided with a second sun gear, a first planet gear assembly rotatably mounted in the first reduction transmission disc and engaged with the first sun gear, a second reduction transmission disc rotatably mounted in the reduction box body and provided with a reduction transmission shaft, and a second planet gear assembly rotatably mounted in the second reduction transmission disc and engaged with the second sun gear.
10. Gate, characterized in that it comprises a power-off self-locking electric motor according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110620648.9A CN113381645A (en) | 2021-06-03 | 2021-06-03 | Self-locking motor and gate in power failure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110620648.9A CN113381645A (en) | 2021-06-03 | 2021-06-03 | Self-locking motor and gate in power failure |
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| Publication Number | Publication Date |
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| CN113381645A true CN113381645A (en) | 2021-09-10 |
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| CN202110620648.9A Pending CN113381645A (en) | 2021-06-03 | 2021-06-03 | Self-locking motor and gate in power failure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115341500A (en) * | 2022-09-06 | 2022-11-15 | 内蒙古第一机械集团股份有限公司 | Band-type brake device for channel brake core |
-
2021
- 2021-06-03 CN CN202110620648.9A patent/CN113381645A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115341500A (en) * | 2022-09-06 | 2022-11-15 | 内蒙古第一机械集团股份有限公司 | Band-type brake device for channel brake core |
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