CN109274209B - Motor with rotation speed self-adjusting function - Google Patents
Motor with rotation speed self-adjusting function Download PDFInfo
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- CN109274209B CN109274209B CN201811179271.2A CN201811179271A CN109274209B CN 109274209 B CN109274209 B CN 109274209B CN 201811179271 A CN201811179271 A CN 201811179271A CN 109274209 B CN109274209 B CN 109274209B
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- synchronizing wheel
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- coupler
- gear
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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
Abstract
The invention provides a motor with a rotation speed self-adjusting function, wherein a synchronous shaft extends towards the outer side of the axial direction from the end head of an output shaft of the motor; a first synchronizing wheel is arranged on the periphery of the synchronizing shaft, a second synchronizing wheel is concentrically arranged at the axial outer side end of the synchronizing shaft, a linkage disk is concentrically arranged at the axial outer side end of the second synchronizing wheel, a plurality of first raised strips are convexly arranged on the periphery of the linkage disk, and the diameters of the linkage disk, the second synchronizing wheel and the first synchronizing wheel are sequentially reduced; the load input shaft is connected with the output shaft through a coupler, a telescopic mechanism for driving the coupler to move axially is arranged between the load input shaft and the output shaft, the coupler and the load input shaft rotate synchronously, and the coupler is in switching linkage with the linkage disc, the second synchronizing wheel and the first synchronizing wheel. The invention improves the motor structure and solves the technical problem of single motor control mode.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a motor with a rotation speed self-adjusting function.
Background
The motor has a wide application range, and most of electric power systems need the motor to drive. The motors are various in types, but the control modes of the motors are different, namely the control of starting, accelerating, running, decelerating and stopping of the motors is carried out through the power supply frequency and the voltage, and the control is carried out according to the types of the different motors, the use occasions of the motors and different requirements and purposes. When the parameters and the operation requirements of the motor are determined, the control strategy of the motor is also determined. However, at present, the control of the motor is mostly limited to the control of the power supply of the motor so as to realize the operation control of the motor, the control mode of the motor is single, the selectivity is small, and the application range of the motor is limited to a certain extent.
Disclosure of Invention
The invention aims to provide a motor with a rotation speed self-adjusting function, which has the advantages that through the improvement of the structure, particularly through the improvement of the output shaft of the motor and the connection mode of the output shaft and a load, the motor has the change of the dragging parameter of the motor, which can be changed through the change of the connection mode of the motor, and the technical problem of single control mode of the motor is solved.
The invention also aims to provide a motor with a rotation speed self-adjusting function, so as to realize the control of the motor by combining a plurality of control modes and optimize the control mode of the motor.
In order to achieve the purpose, the invention provides a motor with a rotation speed self-adjusting function, wherein a synchronous shaft extends towards the axial outer side from the end head of an output shaft of the motor, the diameter of the synchronous shaft is smaller than that of the output shaft, and the synchronous shaft and the output shaft are arranged concentrically; a first synchronizing wheel is arranged on the periphery of the synchronizing shaft, a second synchronizing wheel is concentrically arranged at the axial outer side end of the synchronizing shaft, a linkage disk is concentrically arranged at the axial outer side end of the second synchronizing wheel, a plurality of first raised strips are convexly arranged on the periphery of the linkage disk, and the diameters of the linkage disk, the second synchronizing wheel and the first synchronizing wheel are sequentially reduced;
the load input shaft and the linkage disc are coaxially arranged at intervals, the load input shaft and the output shaft are connected through a coupler, a telescopic mechanism for driving the coupler to axially move is arranged between the load input shaft and the output shaft, the coupler and the load input shaft synchronously rotate, and the coupler, the linkage disc, the second synchronizing wheel and the first synchronizing wheel are in switching linkage.
Preferably, a plurality of second convex strips are arranged on the periphery of the end of the load input shaft in a protruding mode along the axial direction, and the second convex strips are consistent with the distribution outer diameter of the first convex strips.
Preferably, the coupler is of a hollow structure with a center axially penetrating, the inner diameter of the coupler is consistent with the diameter of the load input shaft, an annular bulge is convexly arranged on the inner side wall of the first axial end of the coupler, and an inner ring gear is arranged on the inner periphery of the annular bulge; a first groove is formed in the inner side wall of the coupler on the inner side of the axial direction of the annular bulge along the circumferential direction, and a certain distance is reserved between the first groove and the annular bulge; a plurality of first channels are axially formed in the inner side wall of the coupler between the annular protrusion and the first grooves, a second groove is circumferentially formed in the inner side wall of the coupler axially inward of the first grooves, and the second groove is spaced from the first groove by a certain distance; and a second channel is formed from the second groove to the inner side wall of the axial second end of the coupler along the circumferential direction.
Preferably, the coupler is sleeved on the second raised strip through the second channel in a telescopic manner, and the length of the second channel is not smaller than the distance between the linkage disk and the first synchronizing wheel.
Preferably, an accommodating cavity is formed in an end head of the load input shaft, the telescopic mechanism body is installed in the accommodating cavity, a telescopic end of the telescopic mechanism protrudes outwards from the accommodating cavity, and the telescopic end, the load input shaft and the output shaft are located on the same axis; the telescopic end is provided with a linkage end head, the linkage end head axially moves between the load input shaft and the output shaft, the diameter of the linkage end head is larger than the inner diameter of the coupler, and the periphery of the linkage end head is arranged in the second groove.
Preferably, the second synchronizing wheel and the first synchronizing wheel are arranged on the output shaft at intervals, the axial length of the second synchronizing wheel and the axial length of the first synchronizing wheel are larger than that of the annular bulge, and the interval distance between the second synchronizing wheel and the first synchronizing wheel is not smaller than that of the annular bulge.
Preferably, the first protruding strip is selectively clamped in the first groove, and the axial length of the first groove is not smaller than the distance between the linkage disc and the first synchronous wheel.
Preferably, the coupling is rotatably arranged in an axial flow cylinder, the axial flow cylinder is fixed on the ground through a support seat, and the coupling is driven by the telescopic mechanism to axially move in the axial flow cylinder; the axial second end of the axial flow cylinder is open, the load input shaft penetrates through the center of the axial second end of the axial flow cylinder and extends into the coupler to rotate synchronously with the axial second end of the axial flow cylinder, the axial first end of the axial flow cylinder is sealed by an end cover, a through hole is formed in the center of the end cover in a penetrating mode, and the synchronizing shaft penetrates through the through hole and extends into the axial flow cylinder.
Preferably, at least one pair of brackets bent at right angles are symmetrically arranged on the axial inner side wall of the end cover, the brackets are distributed at the radial outer side end of the synchronizing shaft, each bracket comprises a first rotating shaft and a second rotating shaft, the directions of the first rotating shaft and the second rotating shaft are parallel to the axial direction of the output shaft, the first rotating shaft is connected to the axial inner side wall of the end cover, and the second rotating shaft is connected to the radial outer side end of the first rotating shaft through a right-angle bending piece; the first rotating shaft is located on the radial periphery of the first synchronizing wheel, the second rotating shaft is located on the radial periphery of the second synchronizing wheel, and the length of the second rotating shaft is smaller than the axial length of the second synchronizing wheel.
Preferably, a first gear is rotatably mounted on the first rotating shaft and is meshed with the first synchronizing wheel, a second gear is rotatably mounted on the second rotating shaft and is meshed with the second synchronizing wheel, the first gear and the second gear are arranged at intervals, the interval distance between the first gear and the second gear is not less than the axial length of the annular protrusion, the distribution outer diameters of the first gear and the second gear are consistent, the axial lengths of the first gear and the second gear are respectively greater than the axial length of the annular protrusion, the interval distance between the second gear and the linkage disc is not less than the axial length of the annular protrusion, and the inner gear ring moves along with the coupler in a synchronous axial direction to be selectively meshed with the first gear or the second gear respectively.
Compared with the prior art, the invention has the following advantages:
1. the motor can control the output parameters of the motor by changing the connection mode of the output shaft and the load input shaft, and can also control the dragging parameters of the motor on the premise of not changing a control power supply of the motor, thereby expanding the dragging control mode of the motor;
2. the motor drive connection mode is changed, and the control change of the motor drive power supply is combined, so that the multi-way control of the motor output parameters is realized, and the motor control strategy and the output performance are optimized.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a structural diagram of a corresponding relationship between a load input shaft and a motor output shaft;
FIG. 2 is a cross-sectional view of the motor output shaft;
FIG. 3 is a side view of the load input shaft and the motor output shaft coupled by the coupling;
FIG. 4 is a cross-sectional view of the coupling;
FIG. 5 is a schematic structural view of the coupling combined with the axial flow cylinder;
FIG. 6 is a schematic view of the linkage of the load input shaft and the linkage disc;
FIG. 7 is a schematic view of the structure in which the output shaft of the motor and the coupling rotate independently;
FIG. 8 is a schematic view of the load input shaft coupled to the second synchronizing wheel;
fig. 9 is a schematic view of the structure of the load input shaft linked with the first synchronous wheel.
Detailed Description
The present invention is described in further detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description.
Referring to fig. 1-9, the present invention provides a motor with a rotation speed self-adjusting function, wherein an end of an output shaft 200 of the motor extends to an axial outside to form a synchronizing shaft 210, a diameter of the synchronizing shaft 210 is smaller than a diameter of the output shaft 200, and the synchronizing shaft 210 and the output shaft 200 are concentrically arranged; the outer periphery of the synchronizing shaft 210 is provided with a first synchronizing wheel 211, the axial outer side end of the synchronizing shaft 210 is concentrically provided with a second synchronizing wheel 220, the axial outer side end of the second synchronizing wheel 220 is concentrically provided with a linkage disk 230, the second synchronizing wheel 220, the first synchronizing wheel 211, the synchronizing shaft 210 and the output shaft 200 rotate synchronously, and the diameters of the linkage disk 230, the second synchronizing wheel 220 and the first synchronizing wheel 211 are reduced in sequence.
Among the above-mentioned technical scheme, the periphery protrusion of linkage disk 230 is provided with a plurality of first sand grips 231, 100 end peripheries of load input shaft are provided with a plurality of second sand grips 110 along the axial protrusion on the body, second sand grip 110 with the distribution external diameter of first sand grip 231 is unanimous.
Meanwhile, the coupler 420 is a hollow structure with a center axially penetrating, the inner diameter of the coupler 420 is consistent with the diameter of the load input shaft 100, an annular protrusion 460 is convexly arranged on the inner side wall of the first end of the coupler 420 in the axial direction, and an inner gear ring is arranged on the inner periphery of the annular protrusion 460 and used for being meshed and linked with the second synchronizing wheel 220 or the first synchronizing wheel 211.
A first groove 430 is formed on the inner side wall of the coupling 420 on the inner side of the annular protrusion 460 in the axial direction along the circumferential direction, the axial length of the first groove 430 is not less than the distance between the linkage plate 230 and the first synchronizing wheel 211, and the inner diameter of the first groove 430 is not less than the distribution outer diameter of the first protruding strip 231.
The first groove 430 and the annular protrusion 460 are spaced at a certain distance, a plurality of first grooves 442 are axially formed on the inner side wall of the coupling 420 between the annular protrusion 460 and the first groove 430, a second groove 450 is circumferentially formed on the inner side wall of the coupling 420 axially inward of the first groove 430, and the second groove 450 is spaced at a certain distance from the first groove 430; a second groove 441 is formed from the second groove 450 to the inner side wall of the second end of the coupling 420 in the axial direction along the circumferential direction.
The shaft coupling 420 passes through the flexible cover of second slot channel 441 is established on the second sand grip 110 for shaft coupling 420 and load input shaft 100 synchronous rotation, second sand grip 110 provides the direction for shaft coupling 420's axial displacement simultaneously, the length of second slot channel 441 is not less than the distance between linkage dish 230 and the first synchronizing wheel 211 makes shaft coupling 420 have sufficient displacement, guarantees that shaft coupling 420 can switch the linkage with linkage dish 230, second synchronizing wheel 220 or first synchronizing wheel 211.
An accommodating cavity 120 is formed in the end head of the load input shaft 100, the body of the telescopic mechanism 300 is installed in the accommodating cavity 120, the telescopic end of the telescopic mechanism 300 protrudes outwards from the accommodating cavity 120, and the telescopic end, the load input shaft 100 and the output shaft 200 are located on the same axial line; set up a linkage end 310 on the flexible end, linkage end 310 axial displacement is in load input shaft 100 with between the output shaft 200, the diameter of linkage end 310 is greater than shaft coupling 420 internal diameter, just linkage end 310 periphery sets up in the second recess 450 to make linkage end 310 and shaft coupling 420 synchronous axial displacement, when telescopic machanism 300 drive linkage end 310 removed, can drive shaft coupling 420 synchronous axial displacement on load input shaft 100, change shaft coupling 420's axial position, switch shaft coupling 420 and linkage dish 230, second synchronizing wheel 220 or the linkage mode of first synchronizing wheel 211, change the input rotational speed of load input shaft 100 through the adjustment of connected mode.
In the above technical solution, the second synchronizing wheel 220 and the first synchronizing wheel 211 on the output shaft 200 are arranged at an interval, the axial length of the second synchronizing wheel 220 and the axial length of the first synchronizing wheel 211 are greater than the axial length of the annular protrusion 460, and the interval distance between the second synchronizing wheel 220 and the first synchronizing wheel 211 is not less than the axial length of the annular protrusion 460, so as to avoid that the ring gear on the annular protrusion 460 is simultaneously contacted with the second synchronizing wheel 220 and the first synchronizing wheel 211.
As the axial position of the coupling 420 is moved, the first protrusion 231 is selectively engaged in the first groove 442, so that the coupling 420 is coupled with the output shaft 200 of the motor via the coupling disc 230. As the coupler 420 axially moves toward the output shaft 200, the inner gear ring at the upper end of the annular protrusion 460 is sequentially in contact linkage with the second synchronizing wheel 220 and the first synchronizing wheel 211, thereby switching the linkage manner of the coupler 420 and the output shaft 200 through the axial movement of the coupler 420. Meanwhile, the axial length of the first groove 430 is not less than the distance between the linkage plate 230 and the first synchronizing wheel 211, so that a sufficient axial movement space of the coupling 420 is ensured.
The coupling 420 is rotatably disposed in an axial flow cylinder 400, the axial flow cylinder 400 is fixed on the ground through a support seat 410, and the coupling 420 is driven by the telescopic mechanism 300 to axially move in the axial flow cylinder 400; the axial second end of the axial flow cylinder 400 is open, the load input shaft 100 penetrates through the center of the axial second end of the axial flow cylinder 400 and extends into the coupler 420 to rotate synchronously with the axial second end, the axial first end of the axial flow cylinder 400 is sealed by an end cover 470, a through hole 471 is formed in the center of the end cover 470 in a penetrating manner, and the synchronous shaft 210 penetrates through the through hole 471 and extends into the axial flow cylinder 400.
In the above technical solution, at least a pair of brackets 480 bent at right angles are symmetrically disposed on an axial inner side wall of the end cover 470, the brackets 480 are distributed at a radial outer end of the synchronizing shaft 210, each bracket 480 includes a first rotating shaft and a second rotating shaft, directions of the first rotating shaft and the second rotating shaft are parallel to an axial direction of the output shaft 200, the first rotating shaft is connected to the axial inner side wall of the end cover 470, and the second rotating shaft is connected to a radial outer end of the first rotating shaft through a right-angle bending member; the first rotating shaft is located at the radial periphery of the first synchronizing wheel 211, the second rotating shaft is located at the radial periphery of the second synchronizing wheel 220, and the length of the second rotating shaft is smaller than the axial length of the second synchronizing wheel 220.
In the above technical solution, a first gear 482 is rotatably mounted on the first rotating shaft, the first gear 482 is engaged with the first synchronizing wheel 211, a second gear 481 is rotatably mounted on the second rotating shaft, the second gear 481 is engaged with the second synchronizing wheel 220, the first gear 482 and the second gear 481 are spaced apart from each other, and the spacing distance between the first gear 482 and the second gear 481 is not less than the axial length of the annular protrusion 460, so that the ring gear is prevented from contacting the first gear 482 and the second gear 481 at the same time, the outer diameters of the first gear 482 and the second gear 481 are the same, and the inner diameter of the ring gear is the same, so that the ring gear is linked with the first gear 482 and the second gear 481, and when the coupling 420 moves axially, the ring gear can be switched and linked with the first gear 482 and the second gear 481.
And the axial lengths of the first gear 482 and the second gear 481 are respectively greater than the axial length of the annular protrusion 460 to provide a sufficient meshing distance for the ring gear, and the second gear 481 is spaced from the link plate 230 by a distance not less than the axial length of the annular protrusion 460, as shown in fig. 7, when the annular protrusion 460 is moved between the second gear 481 and the link plate 230, the coupling and the motor output shaft can be rotated independently. The ring gear moves axially with the synchronizing shaft 210 of the coupling 420 to selectively engage with the first gear 482 or the second gear 481, respectively.
As shown in fig. 6 to 9, the periphery of the linkage end 310 is disposed in the second groove 450, so that the linkage end 310 and the coupler 420 move axially in a synchronous manner, when the telescopic mechanism 300 drives the linkage end 310 to move, the coupler 420 is driven to move axially in a synchronous manner on the load input shaft 100, the axial position of the coupler 420 is changed, the linkage manner between the coupler 420 and the linkage disc 230, the second synchronizing wheel 220 or the first synchronizing wheel 211 is switched, and the input rotation speed of the load input shaft 100 is changed by adjusting the connection manner.
Specifically, in the initial position, the first protrusion 231 is engaged in the first slot 442, so that the coupling 420 is coupled to the output shaft 200 of the motor via the coupling disc 230. Along with the axial movement of the coupler 420, as the coupler 420 axially moves toward the output shaft 200, the inner gear ring at the upper end of the annular protrusion 460 may sequentially contact and link with the second synchronizing wheel 220 and the first synchronizing wheel 211, so that the linking manner between the coupler 420 and the output shaft 200 is switched by the axial movement of the coupler 420.
Due to the fact that the diameters of the linkage disc 230, the second synchronizing wheel 220 and the first synchronizing wheel 211 are different, when the coupler 420 is in linkage with the linkage disc 230, the second synchronizing wheel 220 or the first synchronizing wheel 211 with different diameters, the final output of the motor is different, namely, different output rotation is used for driving the load to operate, the purpose of controlling the rotating speed of the load is achieved, and meanwhile, the rotating speed control of the motor is matched, so that the control strategy and the output performance of the motor are optimized.
That is to say, the motor of the invention can control the output parameters of the motor by changing the connection mode of the output shaft and the load input shaft, and can also control the dragging parameters of the motor on the premise of not changing the control power supply of the motor, thereby expanding the dragging control mode of the motor; meanwhile, the multi-way control of the output parameters of the motor is realized by changing the dragging connection mode of the motor and combining the control change of the motor driving power supply.
While embodiments of the invention have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art.
The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modifications made on the basis of the technical scheme according to the technical idea of the present invention fall within the protection scope of the present invention.
Claims (9)
1. The motor with the rotation speed self-adjusting function is characterized in that a synchronous shaft extends towards the axial outer side from the end head of an output shaft of the motor, the diameter of the synchronous shaft is smaller than that of the output shaft, and the synchronous shaft and the output shaft are arranged concentrically; a first synchronizing wheel is arranged on the periphery of the synchronizing shaft, a second synchronizing wheel is concentrically arranged at the axial outer side end of the synchronizing shaft, a linkage disk is concentrically arranged at the axial outer side end of the second synchronizing wheel, a plurality of first raised strips are convexly arranged on the periphery of the linkage disk, and the diameters of the linkage disk, the second synchronizing wheel and the first synchronizing wheel are sequentially reduced;
the load input shaft and the linkage disc are coaxially arranged at intervals, the load input shaft is connected with the output shaft through a coupler, a telescopic mechanism for driving the coupler to axially move is arranged between the load input shaft and the output shaft, the coupler and the load input shaft synchronously rotate, and the coupler, the linkage disc, the second synchronizing wheel and the first synchronizing wheel are in switching linkage;
the coupler is of a hollow structure with a center axially penetrating, the inner diameter of the coupler is consistent with the diameter of the load input shaft, an annular bulge is convexly arranged on the inner side wall of the first axial end of the coupler, and an inner gear ring is arranged on the inner periphery of the annular bulge; a first groove is formed in the inner side wall of the coupler on the inner side of the axial direction of the annular bulge along the circumferential direction, and a certain distance is reserved between the first groove and the annular bulge; a plurality of first channels are axially formed in the inner side wall of the coupler between the annular protrusion and the first grooves, a second groove is circumferentially formed in the inner side wall of the coupler axially inward of the first grooves, and the second groove is spaced from the first groove by a certain distance; and a second channel is formed from the second groove to the inner side wall of the axial second end of the coupler along the circumferential direction.
2. The electric motor with rotation speed self-adjusting function as claimed in claim 1, wherein a plurality of second ribs are axially and convexly arranged on the periphery of the load input shaft end, and the second ribs are consistent with the first ribs in distributed outer diameter.
3. The motor with rotation speed self-adjusting function according to claim 2, wherein the coupling is telescopically sleeved on the second protruding strip through the second channel, and the length of the second channel is not less than the distance between the linkage disk and the first synchronizing wheel.
4. The motor with the rotation speed self-adjusting function as claimed in claim 3, wherein a receiving cavity is formed in an end head of the load input shaft, the telescopic mechanism body is installed in the receiving cavity, a telescopic end of the telescopic mechanism protrudes outwards from the receiving cavity, and the telescopic end is coaxial with the load input shaft and the output shaft; the telescopic end is provided with a linkage end head, the linkage end head axially moves between the load input shaft and the output shaft, the diameter of the linkage end head is larger than the inner diameter of the coupler, and the periphery of the linkage end head is arranged in the second groove.
5. The motor having a rotation speed self-adjusting function according to claim 4, wherein the second synchronizing wheel and the first synchronizing wheel are provided at a spacing on the output shaft, the axial length of the second synchronizing wheel and the first synchronizing wheel is greater than the axial length of the annular protrusion, and the spacing distance between the second synchronizing wheel and the first synchronizing wheel is not less than the axial length of the annular protrusion.
6. The motor with rotation speed self-adjusting function according to claim 5, wherein the first rib is selectively engaged in the first groove, and the axial length of the first groove is not less than the distance between the link plate and the first synchronizing wheel.
7. The motor with rotation speed self-adjusting function according to claim 6, wherein the coupling is rotatably disposed in an axial flow cylinder, the axial flow cylinder is fixed on the ground through a supporting seat, and the coupling is driven by the telescopic mechanism to axially move in the axial flow cylinder; the axial second end of the axial flow cylinder is open, the load input shaft penetrates through the center of the axial second end of the axial flow cylinder and extends into the coupler to rotate synchronously with the axial second end of the axial flow cylinder, the axial first end of the axial flow cylinder is sealed by an end cover, a through hole is formed in the center of the end cover in a penetrating mode, and the synchronizing shaft penetrates through the through hole and extends into the axial flow cylinder.
8. The motor with the rotation speed self-adjusting function according to claim 7, wherein at least a pair of brackets bent at right angles are symmetrically arranged on the inner axial side wall of the end cover, the brackets are distributed at the outer radial end of the synchronizing shaft, the brackets comprise a first rotating shaft and a second rotating shaft, the directions of the first rotating shaft and the second rotating shaft are parallel to the axial direction of the output shaft, the first rotating shaft is connected to the inner axial side wall of the end cover, and the second rotating shaft is connected to the outer radial end of the first rotating shaft through a right-angle bending piece; the first rotating shaft is located on the radial periphery of the first synchronizing wheel, the second rotating shaft is located on the radial periphery of the second synchronizing wheel, and the length of the second rotating shaft is smaller than the axial length of the second synchronizing wheel.
9. The motor with rotation speed self-adjusting function according to claim 8, wherein a first gear is rotatably mounted on the first rotation shaft, the first gear is meshed with the first synchronous wheel, a second gear is rotatably arranged on the second rotating shaft, the second gear is meshed with the second synchronous wheel, the first gear and the second gear are arranged at intervals, the spacing distance between the first gear and the second gear is not less than the axial length of the annular bulge, the distribution outer diameters of the first gear and the second gear are consistent, the axial lengths of the first gear and the second gear are respectively greater than the axial length of the annular bulge, the second gear and the linkage disc are arranged at intervals, and the spacing distance between the two gears is not less than the axial length of the annular bulge, and the inner gear ring synchronously and axially moves along with the coupler so as to be selectively meshed with the first gear or the second gear respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811179271.2A CN109274209B (en) | 2018-10-10 | 2018-10-10 | Motor with rotation speed self-adjusting function |
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| CN201811179271.2A CN109274209B (en) | 2018-10-10 | 2018-10-10 | Motor with rotation speed self-adjusting function |
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| CN109274209B true CN109274209B (en) | 2020-01-17 |
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