CN111193348A - Drive motor and power output device - Google Patents
Drive motor and power output device Download PDFInfo
- Publication number
- CN111193348A CN111193348A CN202010068398.8A CN202010068398A CN111193348A CN 111193348 A CN111193348 A CN 111193348A CN 202010068398 A CN202010068398 A CN 202010068398A CN 111193348 A CN111193348 A CN 111193348A
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- China
- Prior art keywords
- output shaft
- positioning
- bearing
- shaft
- driving motor
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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
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
- H02K1/30—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures using intermediate parts, e.g. spiders
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
- H02K11/215—Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
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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
- H02K7/003—Couplings; Details of shafts
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a drive motor and a power output device. Wherein, this driving motor includes: a machine body and a shaft body; the motor body is provided with an installation cavity and a through hole communicated with the installation cavity, and the installation cavity is used for installing a stator of a driving motor; the axis body includes the output shaft, the setting element, first bearing and second bearing, the output shaft is located to first bearing and second bearing cover, the output shaft passes through the wall rotatable coupling of first bearing and installation cavity, the pore wall rotatable coupling of second bearing and via hole, setting element and output shaft fixed connection to encircle the circumference setting of output shaft, the side-mounting driving motor's of output shaft rotor is kept away from to the setting element, the rotor outside is located to the stator cover, the stator is used for driving rotor to rotate. The driving motor improves the stability of the rotation of the output shaft.
Description
Technical Field
The invention relates to the technical field of motor equipment, in particular to a driving motor and a power output device using the same.
Background
The driving motor generally includes a housing, an output shaft, a rotor, and a stator, the stator is installed in the housing, one end of the output shaft is fixedly connected to the rotor, a portion of the output shaft connected to the rotor and the rotor are positioned in the housing, and the stator is sleeved outside the rotor and can drive the rotor to rotate. When the output shaft works, in order to reduce the shaking generated by the output shaft, a bearing is arranged on the output shaft. On the other hand, because a certain gap exists between the inner ring and the outer ring of the bearing, when the inner ring rotates relative to the outer ring, a working clearance can be generated between the inner ring and the outer ring, and then the output shaft is caused to shake.
The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a driving motor, aiming at improving the rotation stability of an output shaft.
In order to achieve the above object, the present invention provides a driving motor including:
the motor comprises a motor body, a motor body and a motor cover, wherein the motor body is provided with an installation cavity and a through hole communicated with the installation cavity, and the installation cavity is used for installing a stator of a driving motor; and
the axis body, the axis body includes output shaft, setting element, first bearing and second bearing, first bearing with the second bearing cover is located the output shaft, the output shaft passes through first bearing with the wall rotatable coupling of installation cavity, the second bearing with the pore wall rotatable coupling of via hole, the setting element with output shaft fixed connection to encircle the circumference setting of output shaft, the setting element is kept away from the side-mounting driving motor's of output shaft rotor, the stator cover is located the rotor outside, the stator is used for the drive the rotor rotates.
In an embodiment of the present invention, the machine body includes a housing and an end cover, the housing is provided with a mounting groove and the via hole communicated with the mounting groove, and the stator is disposed on a side wall of the mounting groove;
the end cover is connected with the shell and covers the notch of the mounting groove, the end cover and the shell are enclosed to form the mounting cavity, and the end cover is rotatably connected with the output shaft through the second bearing.
In an embodiment of the present invention, a side surface of the end cover facing the output shaft is provided with a positioning groove, and the positioning groove is used for positioning the first bearing.
In an embodiment of the present invention, a positioning shoulder is convexly disposed on a side surface of the output shaft, the positioning shoulder is disposed around a peripheral side of the output shaft, and a side surface of the positioning shoulder facing the via hole abuts against the second bearing, so that the second bearing is positioned at the via hole;
the shaft body further comprises a shaft sleeve, one end of the shaft sleeve abuts against the first bearing, and the other end of the shaft sleeve abuts against the positioning piece, so that the positioning shaft shoulder is matched to clamp the positioning piece.
In an embodiment of the present invention, a positioning boss is convexly disposed on an inner wall surface of the via hole, the positioning boss is disposed around the inner wall surface of the via hole, and the positioning boss is used for matching the output shaft and the positioning shaft shoulder to abut against the second bearing.
In an embodiment of the invention, the positioning element comprises a connecting rib and a positioning sleeve, the positioning sleeve and the output shaft are coaxially arranged, one side of the positioning sleeve, which is back to the connecting rib, is connected with the rotor, and the positioning sleeve is sleeved on the output shaft through the connecting rib;
the positioning sleeve and the output shaft are arranged at intervals, the positioning sleeve, the connecting rib and the output shaft are enclosed to form at least one heat dissipation groove, and the heat dissipation groove is arranged around the output shaft.
In an embodiment of the present invention, the connecting rib is located on a central axis of the positioning sleeve, and the positioning sleeve, the connecting rib and the output shaft enclose to form two heat dissipation grooves.
In an embodiment of the present invention, the shaft body further includes a magnet, and the magnet is disposed at one end of the output shaft adjacent to the end cover;
the machine body further comprises an encoder, wherein the encoder is arranged on the end cover and is opposite to the magnet.
In an embodiment of the present invention, the end cap is provided with a yielding hole, and the yielding hole is communicated with the bottom wall of the positioning groove;
the encoder is installed in through the mounting bracket the end cover dorsad a side of shell, the encoder lid fits the hole of stepping down.
The embodiment of the invention also provides a power output device, which comprises a circuit board and the driving motor, wherein the circuit board is electrically connected with the driving motor.
According to the technical scheme, one end of the output shaft is rotatably connected with the inner wall surface of the mounting cavity through a first bearing, and the output shaft is further rotatably connected with the inner wall surface of the through hole through a second bearing; the output shaft is rotatably connected with the machine body through a first bearing and a second bearing, so that at least two connecting parts are arranged between the output shaft and the machine shell, and the stability of two ends of the output shaft is improved; on the other hand, the cover is equipped with the setting element on the output shaft, and a side installation rotor that the output shaft was kept away from to the setting element to make the rotor have certain distance apart from the output shaft, suitably increase moment, when making the output shaft rotate, the output shaft can steadily be atred, avoid the output shaft to rock. In another aspect, the output shaft and the machine body are integrally packaged, so that the structure is compact and the size is small. The driving motor improves the stability of the rotation of the output shaft.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of an assembly structure of an embodiment of a driving motor according to the present invention;
FIG. 2 is a schematic cross-sectional view of the driving motor shown in FIG. 1 in another state;
FIG. 3 is a schematic cross-sectional view of the body of FIG. 2;
fig. 4 is a schematic cross-sectional view of the shaft body in fig. 2.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
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.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a driving motor. This driving motor includes organism 1 and axis body 2, is provided with stator 12 in the organism 1, and axis body 2 is provided with rotor 25, and stator 12 is to cup jointing the setting with rotor 25, and stator 12 acts on rotor 25, and rotor 25 and axis body 2 realize jointly rotating. The specific structure of the driving motor, refer to fig. 1, which is a schematic view of an assembly structure of an embodiment of the driving motor of the present invention; referring to fig. 2, a schematic cross-sectional view of the driving motor of fig. 1 in another state is shown; referring to fig. 3, a cross-sectional structure of the body of fig. 2 is schematically illustrated; fig. 4 is a schematic cross-sectional view of the shaft body shown in fig. 2.
In an embodiment of the present invention, as shown in fig. 1 in combination with fig. 2, 3 and 4, the driving motor includes: a machine body 1 and a shaft body 2; wherein, the shaft body 2 extends into the machine body 1 and is rotatably connected with the machine body 1; wherein, organism 1 is provided with stator 12, and the axis body 2 is provided with rotor 25, and the stator 12 cover is located the rotor 25 outside, and stator 12 acts on rotor 25 to make the axis body 2 rotate for organism 1. In this embodiment, the shaft body 2 and the machine body 1 are integrally packaged, so that the shaft body 2 and the machine body 1 are compact in structure and small in size.
In an embodiment of the present invention, the machine body 1 is provided with a mounting cavity 11 and a via hole 132 communicating with the mounting cavity 11, the mounting cavity 11 is used for mounting a stator 12 of the driving motor, and the stator 12 can be positioned in the mounting cavity 11 by an adhesive; the shaft body 2 comprises an output shaft 21, a positioning piece 22, a first bearing 23 and a second bearing 24, the first bearing 23 and the second bearing 24 are sleeved on the output shaft 21, the output shaft 21 is rotatably connected with the wall surface of the installation cavity 11 through the first bearing 23, the second bearing 24 is rotatably connected with the hole wall of the through hole 132, the positioning piece 22 is fixedly connected with the output shaft 21 and arranged around the circumference of the output shaft 21, the side surface of the positioning piece 22, which is far away from the output shaft 21, is provided with a rotor 25 of a driving motor, the stator 12 is sleeved on the outer side of the rotor 25, and the stator 12 is used for; alternatively, the stator 12 may be positioned on the output shaft 21 by glue.
Based on the above, specifically referring to fig. 3, one end of the output shaft 21 is connected to the wall surface of the mounting cavity 11 through the first bearing 23, and it is considered that a limiting rib (not shown) is convexly disposed on the inner wall surface of the mounting cavity 11, and a positioning groove 141 structure is formed on the limiting rib; alternatively, the inner wall surface of the mounting cavity 11 may be recessed to form the positioning groove 141.
In the case where both the first bearing 23 and the second bearing 24 can be rotatably connected to the output shaft 21, the connection structure of the first bearing 23 to the output shaft 21, and the connection structure of the first bearing 24 to the output shaft 21 have the following conditions:
the first bearing 23 can be arranged in the positioning groove 141, and the inner ring of the first bearing 23 is connected with the outer wall surface of the output shaft 21; or, the inner ring of the first bearing 23 is in over-fit with the outer wall surface of the output shaft 21, and the over-fit is that the inner ring of the first bearing 23 and the outer wall surface of the output shaft 21 are arranged at intervals, that is, the inner ring of the first bearing 23 is in a non-connection state; when the inner ring of the first bearing 23 is excessively matched with the outer wall surface of the output shaft 21, one end of the inner ring of the first bearing 23, which is far away from the installation cavity 11, can be abutted against the output shaft 21; or, one end of the inner ring of the first bearing 23 far away from the installation cavity 11 can be abutted against the positioning piece 22; or, the shaft body 2 further includes a shaft sleeve 26, the shaft sleeve 26 is sleeved on the output shaft 21, one end of the shaft sleeve 26 abuts against the positioning element 22, and the other end abuts against the inner ring of the first bearing 23.
On the other hand, the outer ring of the first bearing 23 may be connected to the inner wall surface of the positioning groove 141, or the outer ring of the first bearing 23 may be over-fitted to the inner wall surface of the positioning groove 141.
Similarly, the inner ring of the second bearing 24 can also be fixedly connected with the output shaft 21; alternatively, the inner race of the second bearing 24 may be over-fitted with the output shaft 21. On the other hand, the outer ring of the second bearing 24 may also be fixedly connected with the output shaft 21; alternatively, the outer race of the second bearing 24 may be over-fitted to the output shaft 21. In a specific arrangement, reference may be made to the mounting between the first bearing 23 and the output shaft 21.
Alternatively, a positioning pin (not shown) may be provided in a protruding manner on the inner wall surface of the mounting cavity 11, and the positioning pin is connected to a partial surface of the inner ring of the first bearing 23.
In an embodiment of the present invention, since the rotor 25 is disposed on the output shaft 21 through the positioning element 22, when the rotor 25 is engaged with the stator 12, the positioning element 22 and the output shaft 21 rotate synchronously, and the positioning element 22 and the output shaft 21 are fixedly connected. It is understood that the positioning member 22 may be fixed with the output shaft 21 by interference fit; alternatively, the positioning member 22 may be welded and fixed to the output shaft 21; alternatively, the positioning member 22 and the output shaft 21 can be fixed in a limited manner through the bushing 26.
In the present embodiment, in order to enhance the rotational stability of the output shaft 21, the surface of the positioning member 22 away from the output shaft 21 is parallel to the axis of the output shaft 21. That is, the structure in which the rotor 25 is installed on the surface of the positioning member 22 away from the output shaft 21 allows the output shaft 21 to stably rotate when the rotor 25 rotates.
In the present embodiment, it is adopted that one end of the output shaft 21 is rotatably connected with the inner wall surface of the mounting cavity 11 through the first bearing 23, and the output shaft 21 is also rotatably connected with the inner wall surface of the through hole 132 through the second bearing 24; that is, one end and the middle part of the output shaft 21 are respectively rotatably connected with the machine body 1 through a first bearing 23 and a second bearing 24, so that at least two connecting parts are arranged between the output shaft 21 and the machine shell, and the stability of two ends of the output shaft 21 is improved; on the other hand, the locating piece 22 is sleeved on the output shaft 21, and the rotor 25 is installed on one side face, far away from the output shaft 21, of the locating piece 22, so that the rotor 25 has a certain distance from the output shaft 21, the moment is properly increased, and when the output shaft 21 rotates, the output shaft 21 can be stressed stably, and the output shaft 21 is prevented from shaking. The driving motor improves the stability of the rotation of the output shaft 21.
In an embodiment of the present invention, as shown in fig. 2 and 3, the machine body 1 includes a housing 13 and an end cover 14, the housing 13 is provided with a mounting groove (not shown) and a via hole 132 communicating with the mounting groove, and the stator 12 is provided on a side wall of the mounting groove. In the present embodiment, a structure in which the housing 13 and the end cap 14 are connected to form a mounting groove is adopted, so that the end cap 14 can be opened with respect to the housing 13, and the mounting and dismounting of the driving motor can be facilitated. Wherein, the shell and the end cover 14 can be fixed by bolts; of course, the housing and end cap 14 may be connected by a snap-fit connection or a threaded connection.
In this embodiment, the end cap 14 is connected to the housing 13 and covers the notch of the mounting groove, the end cap 14 and the housing 13 enclose the mounting cavity 11, and the end cap 14 is rotatably connected to the output shaft 21 through the second bearing 24.
In an embodiment of the present invention, as shown in fig. 2 and 3, a positioning groove 141 is provided on a side surface of the end cover 14 facing the output shaft 21, and the positioning groove 141 is used for positioning the first bearing 23. That is, a limiting rib (not shown) is convexly disposed on a side surface of the end cover 14 facing the output shaft 21, the limiting rib may be disposed in a ring shape to form a positioning groove 141 structure, and the positioning groove 141 is used for limiting the first bearing 23; the outer ring of the first bearing 23 may be fixedly connected to the inner wall surface of the positioning groove 141, or the outer ring of the first bearing 23 may be disposed in an over-fit manner with the inner wall surface of the positioning groove 141.
In this embodiment, a positioning groove 141 is provided on the end cap 14 to position the first bearing 23, so as to prevent the first bearing 23 from loosening or sliding, and improve the stability of the rotation of the output shaft 21.
In an embodiment of the present invention, as shown in fig. 2 and fig. 4, a positioning shoulder 211 is convexly disposed on a side surface of the output shaft 21, the positioning shoulder 211 is disposed around a peripheral side of the output shaft 21, and a side surface of the positioning shoulder 211 facing the through hole 132 abuts against the second bearing 24, so that the second bearing 24 is positioned at the through hole 132; that is, the second bearing 24 may be captured by the output shaft 21 at the via 132 to effectively position the second bearing 24.
The shaft body 2 further comprises a shaft sleeve 26, one end of the shaft sleeve 26 abuts against the first bearing 23, and the other end of the shaft sleeve 26 abuts against the positioning element 22, so that the positioning shoulder 211 is matched to retain the positioning element 22. In the embodiment, the shaft sleeve 26 abuts against the positioning member 22, so that the positioning member 22 can be positioned on the output shaft 21, and stable rotation of the positioning member 22 is facilitated. On the other hand, the positioning piece 22 and the output shaft 21 are relatively independent structures, so that the positioning piece 22 and the output shaft 21 are conveniently produced, and the production process of the shaft body 2 is reduced.
Optionally, a threaded hole matching structure can be arranged between the positioning member 22 and the output shaft 21 to enhance the connection strength.
Alternatively, the positioning member 22 and the output shaft 21 may be an integrally provided structure, such as: the positioning member 22 and the output shaft 21 are integrally formed by fusion casting.
In an embodiment of the present invention, as shown in fig. 2, 3 and 4, a positioning boss 133 is protruded from an inner wall surface of the through hole 132, the positioning boss 133 is disposed around the inner wall surface of the through hole 132, and the positioning boss 133 is used for matching the output shaft 21 and the positioning shoulder 211 to abut against the second bearing 24.
In this embodiment, since the positioning boss 133 is protruded on the inner wall surface of the via hole 132, the positioning boss 133 and the hole wall of the via hole 132 cooperate to form two through holes (not shown), for example: the through hole formed by the positioning boss 133 around the inner wall surface of the through hole 132 is a second through hole, and the inner wall surface of the through hole 132 and the positioning boss 133 facing one side surface of the end cap 14 are second through holes. Thus, the aperture of the second through hole is larger than that of the first through hole; when the second bearing 24 is installed in the second through hole, the second bearing 24 can be partially or completely accommodated in the first through hole, and a limiting shaft shoulder is formed on the periphery of the second bearing 24 in an extending manner and is arranged corresponding to the second through hole; alternatively, the second bearing 24 may be partially or entirely accommodated in the second through hole, and the output shaft 21 is inserted into the first through hole and rotatably connected to the inner ring of the second bearing 24.
In an embodiment of the present invention, as shown in fig. 2 and 4, the positioning element 22 includes a connecting rib 221 and a positioning sleeve 222, the positioning sleeve 222 and the output shaft 21 are coaxially disposed, a side surface of the positioning sleeve 222 opposite to the connecting rib 221 is connected to the rotor 25, and the positioning sleeve 222 is sleeved on the output shaft 21 through the connecting rib 221; the positioning sleeve 222 and the output shaft 21 are arranged at intervals, the positioning sleeve 222, the connecting rib 221 and the output shaft 21 enclose to form at least one heat dissipation groove 223, and the heat dissipation groove 223 is arranged around the output shaft 21.
In the present embodiment, the positioning sleeve 222 is connected to the output shaft 21 through the connecting rib 221, so that, in order to enhance the stability of the rotation of the output shaft 21, the vertical distance from any point of the inner wall surface of the positioning sleeve 222 to the axis of the output shaft 21 is a constant distance, that is, the positioning sleeve 222 is arranged in parallel with the output shaft 21. On the other hand, due to the fact that the positioning sleeve 222, the connecting rib 221 and the output shaft 21 are surrounded to form the at least one heat dissipation groove 223, a certain distance can be reserved between the connecting rib 221 and the inner wall face with strong installation, the heat dissipation groove 223 is formed among the output shaft 21, the positioning piece 22 and the installation cavity 11, and heat dissipation of the inner space of the driving motor is facilitated. On the other hand, the consumable material for manufacturing the positioning member 22 can be reduced, and the weight of the positioning member 22 can be reduced.
Optionally, the housing 13 and the end cap 14 are made of metal, so as to achieve effective heat transfer and heat dissipation. The temperature of the motor is reduced, the resistance caused by heating is reduced, and the current is increased, so that the power density of the motor is improved.
Optionally, the housing 13 and the end cap 14 are stainless steel.
In an embodiment of the present invention, as shown in fig. 2 and 4, the connecting rib 221 is located at a central axis of the positioning sleeve 222, and the positioning sleeve 222, the connecting rib 221 and the output shaft 21 enclose to form two heat dissipation grooves 223. On one hand, because the connecting rib 221 is located in the central axis of the positioning sleeve 222, the connecting rib 221 can equally divide the positioning sleeve 222 into two equal parts, and the thickness and the mass of the two equal parts are equal; thus, when the stator 12 drives the rotor 25 to rotate, the two equal parts of the positioning sleeve 222 rotate to form a corresponding centrifugal force, which can act on the connecting rib 221 equally at the same time, so that the stress on the connecting rib 221 is uniform, and the service life of the driving motor is prolonged.
Optionally, the positioning sleeve 222 and the connecting rib 221 are integrally disposed, so as to avoid a gap between the positioning sleeve 222 and the connecting rib 221, and improve the integration degree of the device.
Alternatively, the positioning sleeve 222 and the connecting rib 221 are integrally formed by casting.
In an embodiment of the present invention, as shown in fig. 2, 3 and 4, the shaft body 2 further includes a magnet 27, and the magnet 27 is disposed at an end of the output shaft 21 adjacent to the end cover 14; the body 1 further comprises an encoder 15, and the encoder 15 is arranged on the end cover 14 and is opposite to the magnet 27.
In this embodiment, the encoder 15 and the magnet 27 are disposed opposite to each other, and the magnet 27 is disposed on the output shaft 21, so that when the output shaft 21 rotates, the rotation angle of the output shaft 21 can be accurately obtained through the cooperation of the encoder 15 and the magnet 27, and the current value and/or the voltage value of the input stator 12 can be controlled.
Optionally, the magnet 27 is positioned on the output shaft 21 through a fixed seat (not shown), that is, the fixed seat is used as a partition medium, and is made of a non-magnetic material, so that the magnet 27 is prevented from directly contacting the output shaft 21; that is, the output shaft 21 is made of a magnetic conductive alloy material, and the magnetic properties of the magnet 27 are weakened by the direct contact between the magnet 27 and the output shaft 21. Wherein, the output shaft 21 can be made of steel, and the fixing seat is made of aluminum alloy.
Alternatively, the encoder 15 may be provided on the inner or outer surface of the end cap 14. The encoder 15 is electrically connected to an external circuit board structure by a wire.
In an embodiment of the present invention, the end cap 14 is provided with a relief hole 142, and the relief hole 142 communicates with the bottom wall of the positioning groove 141; the encoder 15 is mounted on a side surface of the end cover 14 opposite to the housing 13 through a mounting frame, and the encoder 15 covers the abdicating hole 142. In the present embodiment, the maintenance and assembly of the encoder 15 are facilitated by disposing the encoder 15 on the outer side surface of the end cap 14.
Optionally, the encoder 15 is fixed on the end cap 14 by a fixing frame, and the fixing frame is an encoder fixing frame. Specifically, the fixing bracket may be fixed to the end cap 14 by screws, thereby positioning the encoder 15 on the end cap 14.
In an embodiment of the present invention, a boss (not shown) is further convexly disposed on an outer wall surface of the housing 13, the boss is disposed around a periphery of the housing 13, and the boss is provided with a plurality of through holes; when the driving motor is installed on the speed reducer equipment, the positioning piece penetrates through the through hole to be fixedly connected with the shell of the speed reducer equipment. Wherein, the positioning piece can be a screw or a pin.
The present invention further provides a power output apparatus, which includes a circuit board (not shown) and a driving motor, and the specific structure of the driving motor refers to the above embodiments, and since the power output apparatus adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and are not described herein again. Wherein, the circuit board is electrically connected with the driving motor.
In the practical application of the embodiment, the circuit board can be a single chip microcomputer with a common model; of course, the circuit board may be other control devices. The circuit board is connected with driving motor's encoder 15 and driving motor's stator 12 electricity respectively, and the circuit board passes through encoder 15 and obtains the turned angle of axis body 2 to input signal of telecommunication to stator 12, cooperation stator 12, in order to control the rotation of rotor 25 and axis body 2.
Wherein, the power output device can be a driving module or a mechanical limb of the robot.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A drive motor, comprising:
the motor comprises a motor body, a motor body and a motor cover, wherein the motor body is provided with an installation cavity and a through hole communicated with the installation cavity, and the installation cavity is used for installing a stator of a driving motor; and
the axis body, the axis body includes output shaft, setting element, first bearing and second bearing, first bearing with the second bearing cover is located the output shaft, the output shaft passes through first bearing with the wall rotatable coupling of installation cavity, the second bearing with the pore wall rotatable coupling of via hole, the setting element with output shaft fixed connection to encircle the circumference setting of output shaft, the setting element is kept away from the side-mounting driving motor's of output shaft rotor, the stator cover is located the rotor outside, the stator is used for the drive the rotor rotates.
2. The driving motor according to claim 1, wherein the body includes a housing and an end cover, the housing is provided with a mounting groove and the via hole communicated with the mounting groove, and the stator is provided at a side wall of the mounting groove;
the end cover is connected with the shell and covers the notch of the mounting groove, the end cover and the shell are enclosed to form the mounting cavity, and the end cover is rotatably connected with the output shaft through the second bearing.
3. The drive motor of claim 2, wherein a side of the end cap facing the output shaft is provided with a positioning groove for positioning the first bearing.
4. The driving motor of claim 3, wherein a positioning shoulder is convexly provided on a side surface of the output shaft, the positioning shoulder is disposed around a peripheral side of the output shaft, and a side surface of the positioning shoulder facing the through hole abuts against the second bearing so that the second bearing is positioned at the through hole;
the shaft body further comprises a shaft sleeve, one end of the shaft sleeve abuts against the first bearing, and the other end of the shaft sleeve abuts against the positioning piece, so that the positioning shaft shoulder is matched to clamp the positioning piece.
5. The drive motor of claim 4, wherein a positioning boss is convexly provided on an inner wall surface of the via hole, the positioning boss is provided around the inner wall surface of the via hole, and the positioning boss is used for matching the output shaft and the positioning shaft shoulder to abut against the second bearing.
6. The driving motor according to any one of claims 1 to 5, wherein the positioning member includes a connecting rib and a positioning sleeve, the positioning sleeve is coaxially disposed with the output shaft, a side of the positioning sleeve facing away from the connecting rib is connected to the rotor, and the positioning sleeve is sleeved on the output shaft through the connecting rib;
the positioning sleeve and the output shaft are arranged at intervals, the positioning sleeve, the connecting rib and the output shaft are enclosed to form at least one heat dissipation groove, and the heat dissipation groove is arranged around the output shaft.
7. The drive motor of claim 6, wherein the connecting rib is located at a central axis of the positioning sleeve, and the positioning sleeve, the connecting rib and the output shaft enclose to form two heat dissipation grooves.
8. The drive motor according to any one of claims 2 to 5, wherein the shaft body further comprises a magnet provided at an end of the output shaft adjacent to the end cap;
the machine body further comprises an encoder, wherein the encoder is arranged on the end cover and is opposite to the magnet.
9. The drive motor of claim 8, wherein the end cap is provided with a relief hole communicating with a bottom wall of the positioning groove;
the encoder is installed in through the mounting bracket the end cover dorsad a side of shell, the encoder lid fits the hole of stepping down.
10. A power output apparatus characterized by comprising a circuit board and the drive motor according to any one of claims 1 to 9, the circuit board being electrically connected to the drive motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010068398.8A CN111193348A (en) | 2020-01-20 | 2020-01-20 | Drive motor and power output device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010068398.8A CN111193348A (en) | 2020-01-20 | 2020-01-20 | Drive motor and power output device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111193348A true CN111193348A (en) | 2020-05-22 |
Family
ID=70710234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010068398.8A Pending CN111193348A (en) | 2020-01-20 | 2020-01-20 | Drive motor and power output device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111193348A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200959542Y (en) * | 2006-06-05 | 2007-10-10 | 深圳市金奇稀土电机有限公司 | Generator rotor for vehicle |
| CN102097884A (en) * | 2011-01-26 | 2011-06-15 | 胡磊 | Bearing buffer unit for motor |
| CN203734398U (en) * | 2013-12-25 | 2014-07-23 | 精进电动科技（北京）有限公司 | Rotor bracket and motor rotor assembly comprising the same |
| CN209571908U (en) * | 2018-12-26 | 2019-11-01 | 深圳市越疆科技有限公司 | Motor and motor and retarder connection structure |
| CN209608522U (en) * | 2019-03-08 | 2019-11-08 | 贵州航天林泉电机有限公司 | A kind of axial-flux electric machine rotor structure |
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2020
- 2020-01-20 CN CN202010068398.8A patent/CN111193348A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200959542Y (en) * | 2006-06-05 | 2007-10-10 | 深圳市金奇稀土电机有限公司 | Generator rotor for vehicle |
| CN102097884A (en) * | 2011-01-26 | 2011-06-15 | 胡磊 | Bearing buffer unit for motor |
| CN203734398U (en) * | 2013-12-25 | 2014-07-23 | 精进电动科技（北京）有限公司 | Rotor bracket and motor rotor assembly comprising the same |
| CN209571908U (en) * | 2018-12-26 | 2019-11-01 | 深圳市越疆科技有限公司 | Motor and motor and retarder connection structure |
| CN209608522U (en) * | 2019-03-08 | 2019-11-08 | 贵州航天林泉电机有限公司 | A kind of axial-flux electric machine rotor structure |
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Application publication date: 20200522 |