CN107786037B - Motor device - Google Patents
Motor device Download PDFInfo
- Publication number
- CN107786037B CN107786037B CN201610736501.5A CN201610736501A CN107786037B CN 107786037 B CN107786037 B CN 107786037B CN 201610736501 A CN201610736501 A CN 201610736501A CN 107786037 B CN107786037 B CN 107786037B
- Authority
- CN
- China
- Prior art keywords
- output shaft
- gear
- housing
- motor device
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000002093 peripheral effect Effects 0.000 claims description 18
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000005192 partition Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- General Details Of Gearings (AREA)
Abstract
A motor device, when a gear connected with an output shaft receives the acting force from a driven gear engaged with the gear, the motor device is helpful to avoid the gear moving in the radial direction of the output shaft to incline the output shaft, and improve the rotation precision of the output shaft, thereby avoiding the poor engagement of the gear and the generation of noise. The motor device of the invention comprises: a motor body having a housing and an output shaft protruding from the housing; and a gear that is connected to a portion of the output shaft that protrudes from the housing, wherein the motor device further includes a mounting frame that has a mounting portion that is mounted on the housing and a support portion that is connected to the mounting portion, wherein the support portion is located on a side of the gear opposite to the housing in an axial direction of the output shaft and supports a side of the gear opposite to the housing.
Description
Technical Field
The present invention relates to a motor device.
Background
Conventionally, as shown in fig. 4, there is a motor device including a motor main body 110X and a gear 120X, wherein the motor main body 110X has a housing 111X accommodating a rotor, a stator, and a gear train (here, the rotor, the stator, and the gear train are not shown), and an output shaft 112X protruding from the housing 111X, and the gear 120X is engaged with a portion of the output shaft 112X protruding from the housing 111X, and the gear 120X is prevented from falling off from the output shaft 112X by a C-ring 150X abutting an end surface of the gear 120X.
In operation of the motor apparatus, the rotor inside the motor main body 110X is driven to rotate relative to the stator, and the rotation of the rotor is transmitted to the output shaft 112X through the gear set, thereby driving the gear 120X to rotate.
The motor device is applicable to a projector, and as shown in fig. 5, for example, the motor device is mounted in a housing 210X of the projector (typically, a motor main body 110X is fixed to the housing 210X) so that a central axis L1 of a gear 120X and a central axis L2 of a barrel-side gear 221X provided on an outer periphery of a lens barrel 220X are spaced apart in parallel from each other by a proper interval, and the gear 120X is engaged with the barrel-side gear 221X, whereby the motor device rotates the lens barrel 220X by rotation of the drive gear 120X, and focusing and the like of the projector can be performed.
However, in the projector having the above-described configuration, when the motor device drives the gear 120X to rotate, the gear 120X receives a reaction force from the barrel side gear 221X, and as shown in fig. 4 and 5, since the tip of the output shaft 112X is not supported, the gear 120X is likely to move in the radial direction of the output shaft 112X, and the output shaft 112X is likely to tilt in the radial direction and wear, and further, the rotation accuracy of the output shaft 112X is likely to be lowered, and problems such as poor engagement of the gears 120X and 221X, noise generation, and deterioration of the focus positioning accuracy of the projector occur.
Disclosure of Invention
The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a motor device that, when a gear connected to an output shaft receives a force from a driven gear or the like to be engaged with the gear, helps to prevent the gear from moving in a radial direction of the output shaft to tilt the output shaft, and improves the rotation accuracy of the output shaft, thereby preventing occurrence of a poor engagement of the gear and noise.
To achieve the above object, a motor device according to a first aspect of the present invention includes: a motor body having a housing and an output shaft protruding from the housing; and a gear that is connected to a portion of the output shaft that protrudes from the housing, wherein the motor device further includes a mounting frame that has a mounting portion that is mounted on the housing and a support portion that is connected to the mounting portion, wherein the support portion is located on a side of the gear opposite to the housing in an axial direction of the output shaft and supports a side of the gear opposite to the housing.
According to the motor device of the first aspect of the present invention, since the gear connected to the output shaft can be supported on the opposite side of the housing by the mounting frame, when the gear connected to the output shaft receives a force from a driven gear or the like of a connection object (for example, a projector or the like) engaged with the gear, the gear is prevented from moving in the radial direction of the output shaft to tilt the output shaft, and the rotation accuracy of the output shaft is improved, thereby preventing the occurrence of poor engagement of the gear and noise.
In the motor device according to the second aspect of the present invention, in the motor device according to the first aspect of the present invention, the gear is attached to the output shaft so that a tip end of the output shaft protrudes from the gear, and the support portion supports a side of the gear opposite to the housing by supporting the tip end of the output shaft.
According to the motor device of the second aspect of the present invention, without greatly changing the conventional motor device, the inclination of the output shaft caused by the movement of the gear in the radial direction of the output shaft can be avoided in the actual use of the motor device, and the rotation accuracy of the output shaft can be improved, as long as the frame is additionally installed on the motor device.
In the motor device according to the third aspect of the present invention, the support portion has an opening portion that opens toward one side in a direction perpendicular to the axial direction of the output shaft, and in which the tip end of the output shaft can be fitted from one side in the direction perpendicular to the axial direction of the output shaft.
According to the motor device of the third aspect of the present invention, the gear can be conveniently assembled to the mounting frame in the direction perpendicular to the axial direction of the output shaft, as required, contributing to an improvement in the production efficiency of the motor device.
In the motor device according to a fourth aspect of the present invention, in the motor device according to the third aspect of the present invention, the front end of the output shaft is fitted into the opening through a C-ring, and the C-ring surrounds the entire peripheral surface of the front end of the output shaft together with the opening.
According to the motor device of the fourth aspect of the present invention, the C-ring and the opening portion are used to surround the entire circumferential surface of the output shaft, so that the front end of the output shaft can be prevented from coming out of the opening portion in the direction perpendicular to the axial direction of the output shaft, and the output shaft can be prevented from tilting due to the movement of the gear in the radial direction of the output shaft, thereby improving the rotation accuracy of the output shaft.
In the motor device according to a fifth aspect of the present invention, in the motor device according to the second aspect of the present invention, the support portion has a through hole penetrating the support portion in an axial direction of the output shaft, and the output shaft is inserted into the through hole.
According to the motor device of the fifth aspect of the present invention, the gear can be reliably prevented from coming off the output shaft due to the movement in the radial direction of the output shaft.
In the motor device according to a sixth aspect of the present invention, in the motor device according to the first aspect, a shaft portion is provided on the gear, the shaft portion protrudes from an end surface of the gear on a side opposite to the housing, the housing side of the gear is connected to the output shaft, and the support portion supports the shaft portion, thereby supporting the side of the gear opposite to the housing.
According to the motor device of the sixth aspect of the present invention, the gear can be assembled to the housing after being assembled to the mounting frame, and an appropriate assembly method can be conveniently selected according to actual needs, thereby improving assembly efficiency.
A motor device according to a seventh aspect of the present invention is the motor device according to the sixth aspect of the present invention, wherein the gear is provided with an engaging portion, and the gear is connected to the output shaft by engaging the engaging portion with a front end of the output shaft.
According to the motor device of the seventh aspect of the present invention, the gear can be connected to the output shaft with ease, and the positional accuracy of the gear with respect to the output shaft can be improved.
In the motor device according to the eighth aspect of the present invention, in the motor device according to the sixth aspect of the present invention, the support portion has an opening portion that opens toward one side in a direction perpendicular to the axial direction of the output shaft, and the shaft portion is capable of being fitted from one side in the direction perpendicular to the axial direction of the output shaft.
According to the motor device of the eighth aspect of the present invention, the gear can be conveniently assembled to the mounting frame in the direction perpendicular to the axial direction of the output shaft, according to actual needs, contributing to improvement of the production efficiency of the motor device.
In the motor device according to a ninth aspect of the present invention, in the motor device according to the eighth aspect of the present invention, the shaft portion is fitted into the opening portion via a C-ring, and the C-ring surrounds the entire peripheral surface of the shaft portion together with the opening portion.
According to the motor device of the ninth aspect of the present invention, the C-ring and the opening portion are used to surround the entire peripheral surface of the shaft portion, so that the shaft portion is prevented from coming out of the opening portion in a direction perpendicular to the axial direction of the output shaft, and the output shaft is prevented from tilting due to movement of the gear in the radial direction of the output shaft, thereby improving the rotation accuracy of the output shaft.
In the motor device according to a tenth aspect of the present invention, in the motor device according to the sixth aspect of the present invention, the support portion has a through hole penetrating the support portion in the axial direction of the output shaft, and the shaft portion is inserted into the through hole.
According to the motor device of the tenth aspect of the present invention, the gear can be reliably prevented from coming off the output shaft due to the movement in the radial direction of the output shaft.
In the motor device according to the eleventh aspect of the present invention, the mounting portion includes a mounting plate portion mounted on the housing, and a connection plate portion connecting the mounting plate portion and the support portion.
According to the motor device of the eleventh aspect of the present invention, the mounting portion is formed by using the thin plate-like member, so that the manufacturing material of the mounting frame can be saved, and the manufacturing cost can be reduced.
A motor device according to a twelfth aspect of the present invention is the motor device according to the eleventh aspect of the present invention, wherein the attachment plate portion is provided with a locking portion, the housing is provided with a locked portion, and the attachment frame is fixed to the housing by locking the locking portion and the locked portion.
According to the motor device of the twelfth aspect of the present invention, the mounting frame can be easily fixed to the housing, and the assembly efficiency of the motor device can be improved.
In the motor device according to a thirteenth aspect of the present invention, in the motor device according to the twelfth aspect of the present invention, the engaged portion is a protruding portion extending from the housing in a direction perpendicular to the axial direction of the output shaft, and the engaging portion is a pair of engaging protruding pieces protruding toward the housing side, and the pair of engaging protruding pieces sandwich the protruding portion from both sides.
According to the motor device of the thirteenth aspect of the present invention, the locking portion and the locked portion can be formed with a simple structure, and the productivity of the motor device can be improved.
In the motor device according to a fourteenth aspect of the present invention, in the motor device according to the first aspect of the present invention, a rotor, a stator, and a gear train for transmitting rotation of the rotor to the output shaft are housed in the housing.
According to the motor device of the fourteenth aspect of the present invention, the output shaft can be rotated at an appropriate rotational speed according to actual needs.
Effects of the invention
According to the motor device of the present invention, since the gear connected to the output shaft can be supported on the opposite side of the housing by the mounting frame, when the gear connected to the output shaft receives a force from a driven gear or the like of a connection object (for example, a projector or the like) engaged with the gear, the gear can be prevented from moving in the radial direction of the output shaft, the output shaft can be prevented from tilting, and the rotation accuracy of the output shaft can be improved, and the occurrence of a poor engagement of the gear and noise can be prevented.
Drawings
Fig. 1A is a perspective view schematically showing the structure of a motor device according to embodiment 1 of the present invention.
Fig. 1B is an exploded perspective view schematically showing the structure of a motor device according to embodiment 1 of the present invention.
Fig. 1C is a plan view schematically showing the structure of a motor device according to embodiment 1 of the present invention.
Fig. 1D is a side view schematically showing the structure of a motor device according to embodiment 1 of the present invention.
Fig. 1E is a side cross-sectional view schematically showing the structure of a motor main body included in a motor device according to embodiment 1 of the present invention.
Fig. 1F is a top cross-sectional view schematically showing the structure of a motor main body included in a motor device according to embodiment 1 of the present invention.
Fig. 1G is a gear train development view schematically showing the structure of a motor main body included in a motor device according to embodiment 1 of the present invention.
Fig. 2A is a perspective view schematically showing the structure of a motor device according to embodiment 2 of the present invention.
Fig. 2B is a plan view schematically showing the structure of a motor device according to embodiment 2 of the present invention.
Fig. 2C is a side view schematically showing the structure of a motor device according to embodiment 2 of the present invention.
Fig. 3A is a perspective view schematically showing the structure of a motor device according to a modification of the present invention.
Fig. 3B is a plan view schematically showing the structure of a motor device according to a modification of the present invention.
Fig. 4 is a perspective view schematically showing the structure of a conventional motor device.
Fig. 5 is a plan view schematically showing the structure of a projector to which the conventional motor device is attached.
Detailed Description
A motor device according to an embodiment of the present invention will be described below with reference to the drawings. For convenience of explanation, the three directions orthogonal to each other are defined as an X direction, a Y direction, and a Z direction, and the X direction is defined as being parallel to an axis L of an output shaft of the motor device.
< embodiment 1>
Hereinafter, the motor device 1 according to embodiment 1 of the present invention will be described with reference to fig. 1A to 1G, in which fig. 1A is a perspective view schematically showing the structure of the motor device 1 according to embodiment 1 of the present invention, fig. 1B is an exploded perspective view schematically showing the structure of the motor device 1 according to embodiment 1 of the present invention, fig. 1C is a plan view schematically showing the structure of the motor device 1 according to embodiment 1 of the present invention, fig. 1D is a side view schematically showing the structure of the motor device 1 according to embodiment 1 of the present invention, fig. 1E is a side sectional view schematically showing the structure of a motor body included in the motor device 1 according to embodiment 1 of the present invention, fig. 1F is a plan sectional view schematically showing the structure of the motor body included in the motor device 1 according to embodiment 1 of the present invention, and fig. 1G is a gear set development view schematically showing the structure of the motor body included in the motor device 1 according to embodiment 1 of the present invention.
[ overall structure of motor device 1 ]
As shown in fig. 1A to 1D, the motor apparatus 1 includes: a motor body 10, the motor body 10 having a housing 11 and an output shaft 12 protruding from the housing 11; and a gear 20, the gear 20 being connected to a portion of the output shaft 12 protruding from the housing 11.
Further, as shown in fig. 1A to 1D, the motor apparatus 1 further includes a mounting frame 30 having a mounting portion 31 and a supporting portion 32 connected to the mounting portion 31, wherein the mounting portion 31 is mounted on the housing 11, the supporting portion 32 is located on a side of the gear 20 opposite to the housing 11 (i.e., an upper side in fig. 1A) in the axis L direction (i.e., the X direction) of the output shaft 12, and supports a side of the gear 20 opposite to the housing 11.
[ Structure of Motor body 10 ]
As shown in fig. 1E to 1G, the motor main body 10 includes a substantially cylindrical housing 11 and an output shaft 12 protruding from the housing 11, and a rotor 13, a stator 14, and a gear set 15 are housed in the housing 11, and rotation of the rotor 13 can be transmitted to the output shaft 12 via the gear set 15.
Here, as shown in fig. 1B, the housing 11 includes a cylindrical housing member and a plate member closing an opening of the housing member. Specifically, as shown in fig. 1E, the housing 11 has: a peripheral wall portion 111; a first plate portion 112 that is provided on one end side of the peripheral wall portion 111 in the axis L direction of the output shaft 12 so as to be formed separately from the peripheral wall portion 111, and that closes an opening of the peripheral wall portion 111 on the one end side in the axis L direction of the output shaft 12; a second plate portion 113 provided on the other end side of the peripheral wall portion 111 in the axis L direction of the output shaft 12 so as to be integrally formed with the peripheral wall portion 111, and closing an opening of the other end side of the peripheral wall portion 111 in the axis L direction of the output shaft 12; and a partition 114, wherein the partition 114 is fixed to the peripheral wall 111 so as to be provided between the first plate 112 and the second plate 113, and is provided with a hole 1141 through which the rotation shaft 131 of the rotor 13 passes.
Further, as shown in fig. 1E, the rotor 13 has: a rotation shaft 131 extending in a direction parallel to the axis L direction of the output shaft 12 and penetrating the partition 114, one end side of the rotation shaft 131 being rotatably supported by the first plate 112, and the other end side of the rotation shaft being rotatably supported by the second plate 113; and a magnet 132, the magnet 132 being mounted on the rotation shaft 131.
Further, as shown in fig. 1E, the stator 14 is fixed inside the housing 11 so as to surround the rotor 13, and includes a first stator core group 141 and a second stator core group 142 arranged along the axis L direction of the output shaft 12.
Further, as shown in fig. 1F, 1G, the gear set 15 includes: a first gear 151, the first gear 151 having a large diameter gear 1511 engaged with a gear 1311 at the front end of the rotation shaft 131 and a small diameter gear 1512 integrally formed with the large diameter gear 1511; a second gear 152, the second gear 152 having a large diameter gear 1521 meshed with the small diameter gear 1512 of the first gear 151 and a small diameter gear 1522 integrally formed with the large diameter gear 1521; a third gear 153, the third gear 153 having a large diameter gear 1531 engaged with the small diameter gear 1522 of the second gear 152 and a small diameter gear 1532 integrally formed with the large diameter gear 1531; and a fourth gear 154, the fourth gear 154 having a large diameter gear 1541 engaged with a small diameter gear 1532 of the third gear 153 and a small diameter gear 1542 integrally formed with the large diameter gear 1541. Here, the first gear 151, the second gear 152, the third gear 153, and the fourth gear 154 are rotatably supported by the housing 11 via support shafts 161, 162, 163, and 164 extending in a direction parallel to the axis L direction of the output shaft 12, and one end of the support shafts 161, 162, 163, and 164 is supported by the first plate portion 112, and the other end side is supported by the partition plate 114.
Further, as shown in fig. 1G, the output shaft 12 has a shaft main body 121 and an output shaft gear 122 integrally formed with the shaft main body 121, wherein one end (upper end in fig. 1G) of the shaft main body 121 protrudes from the housing 11 via a hole 1121 in the first plate portion 112, and the intermediate portion and the other end (lower end in fig. 1G) of the shaft main body 121 are supported by the peripheral portion of the hole 1121 and the partition 114, respectively, and the output shaft gear 122 is located in the housing 11 and is meshed with a small diameter gear 1542 of the fourth gear 154 of the gear set 15.
[ Structure of gear 20, mounting frame 30 and peripheral Member thereof ]
As shown in fig. 1C, the gear 20 is provided with a shaft 201, and the shaft 201 protrudes from an end surface of the gear 20 on the opposite side of the housing 11, and the gear 20 is connected to the output shaft 12 on the side closer to the housing 11.
Here, an engagement portion (not shown) such as a hole is provided in the gear 20 (specifically, a portion of the gear 20 on the side of the housing 11), and the gear 20 is engaged with the front end of the output shaft 12 by the engagement portion, thereby being connected to the output shaft 12.
As described above, the mounting frame 30 has the mounting portion 31 and the support portion 32 connected to the mounting portion 31.
Specifically, as shown in fig. 1B, the mounting portion 31 includes a mounting plate portion 311 mounted on the housing 11, and a connection plate portion 312, and the connection plate portion 313 connects the mounting plate portion 311 to the support portion 32.
More specifically, as shown in fig. 1A and 1B, the mounting plate portion 311 has a substantially disk shape, the support portion 32 has a substantially fan-shaped plate shape, the connection plate portion 312 extends substantially along the axis L direction of the output shaft 12, and the mounting plate portion 311, the connection plate portion 312, and the support portion 32 enclose a space in which the gear 20 is housed.
A hole (not shown) through which the output shaft 12 passes to be connected to the gear 20 is provided in the mounting plate portion 311.
As shown in fig. 1A to 1D, the attachment plate portion 311 is provided with a locking portion 3111, the housing 11 (specifically, the first plate portion 112) is provided with a locked portion 1122, and the attachment frame 30 is fixed to the housing 11 by locking the locking portion 3111 and the locked portion 1122. Here, the engaged portions 1122 are protruding portions (two are provided at intervals along the peripheral edge of the first plate portion 112 in the illustrated example, but not limited thereto) extending from the housing 11 in a direction perpendicular to the axial direction L of the output shaft 12 (Y direction in the illustrated example), the engaging portions 3111 are paired engaging protruding pieces protruding toward the housing 11 side (two are provided at the peripheral edge of the mounting plate portion 311 in the illustrated example, but not limited thereto), and the paired engaging protruding pieces sandwich the protruding portions from both sides in the circumferential direction.
As shown in fig. 1C, the support portion 32 has an opening 321 (provided in the center portion of the fan shape in the illustrated example, but is not limited to this), and the opening 321 is opened to one side in the direction perpendicular to the axis L direction of the output shaft 12 (in this case, the Z direction), and the shaft portion 201 can be fitted from one side in the direction perpendicular to the axis L direction of the output shaft 12 (in the illustrated example, the Z direction).
Further, as shown in fig. 1C, the shaft 201 is fitted into the opening 321 via the C-ring 50, and the C-ring 50 surrounds the entire circumferential surface of the shaft 201 together with the opening 321.
[ example of method of assembling the motor device 1 ]
In the assembly, for example, the gear 20 may be assembled to the mounting frame 30 and then to the motor main body 10. Specifically, for example, the gear 20 is first set in a space surrounded by the mounting plate portion 311, the connecting plate portion 312, and the support portion 32 so that the shaft portion 201 is fitted into the opening 321 via the C-ring 50. Then, the engaging portion 3111 and the engaged portion 1122 are engaged with each other, and the engaging portion of the gear 20 is engaged with the front end of the output shaft 12, whereby the motor device 1 is assembled.
According to the present embodiment, since the gear 20 connected to the output shaft 12 can be supported by the mounting frame 30 on the opposite side of the housing 11, in actual use, when the gear 20 connected to the output shaft 12 receives a force from a driven gear, rack, or the like of a connection object (for example, a projector, or the like) engaged with the gear, the gear 20 can be prevented from moving in the radial direction of the output shaft 12, the output shaft 12 can be prevented from tilting, and the rotational accuracy of the output shaft 12 can be improved, whereby the occurrence of a poor engagement of the gear 20 and noise can be prevented.
Further, according to the present embodiment, in actual use, by attaching the motor device 1 so that the opening of the opening 321 faces the driven gear side of the connection object (for example, projector or the like) engaged with the gear 20, the force of the driven gear, rack or the like from the connection object (for example, projector or the like) can be received better, and the displacement of the front end of the output shaft 12 caused by the movement of the gear 20 in the radial direction of the output shaft 12 can be avoided.
< embodiment 2>
Next, a motor device 1A according to embodiment 2 of the present invention will be described with reference to fig. 2A to 2C, wherein fig. 2A is a perspective view schematically showing the structure of the motor device 1A according to embodiment 2 of the present invention, fig. 2B is a plan view schematically showing the structure of the motor device 1A according to embodiment 2 of the present invention, and fig. 2C is a side view schematically showing the structure of the motor device 1A according to embodiment 2 of the present invention.
The motor device 1A of the present embodiment has basically the same structure as the motor device 1 of embodiment 1 described above, except that the gear 20A is attached to the output shaft 12A such that the tip of the output shaft 12A protrudes from the gear 20A. Specifically, a hole 202A extending through the gear 20A is provided in the radial center of the gear 20A, and the output shaft 12A protruding from the housing 11A of the motor main body 10A passes through the hole 202A of the gear 20A (here, for example, the hole 202A is formed in a D shape or the like when viewed in the axial direction of the output shaft 12A, and a portion of the output shaft 12A engaged with the hole 202A is formed in a corresponding shape to realize rotation stopping of the gear 20A with respect to the output shaft 12A, although the present invention is not limited thereto, and rotation stopping may be realized by adhesion). The front end of the output shaft 12A is fitted into the opening 321A of the support portion 32A of the mounting frame 30A via the C-ring 50A, and the C-ring 50A surrounds the entire peripheral surface of the front end of the output shaft 12A together with the opening 321A. Here, the motor main body 10A is the same as the motor main body 10 of the above embodiment 1 except that the output shaft 12A is longer than the output shaft 12 of the motor main body 10 of the above embodiment 1, and the structure of the mounting frame 30A is also the same as the mounting frame 30 of the above embodiment 1, and therefore, the specific structures of the motor main body 10A and the mounting frame 30A will not be described again.
According to this embodiment, the same technical effects as those of embodiment 1 described above can be achieved.
According to the present embodiment, the output shaft is prevented from tilting due to the movement of the gear in the radial direction of the output shaft in the actual use of the motor device, without greatly changing the conventional motor device, by adding the mounting frame thereto.
The invention has been described above by way of example with reference to the accompanying drawings, it being apparent that the invention is not limited to the embodiments described above.
For example, the motor device according to the above embodiment can be applied to a projector as shown in fig. 5, and in this case, the gear of the motor device is engaged with the lens barrel side gear of the projector, whereby the motor device rotates the lens barrel by driving the gear to rotate, and focusing and the like of the projector can be performed. In this case, the motor device is preferably mounted such that the opening portion opens to one side of the barrel-side gear, whereby movement of the gear in the radial direction of the output shaft can be more reliably prevented, and the rotational accuracy of the output shaft can be improved.
In the above-described embodiment, the motor main body houses the rotor, the stator, and the gear train in the housing, and the rotation of the rotor is transmitted to the output shaft via the gear train, but the present invention is not limited thereto, and the specific structure of the motor main body may be appropriately changed as needed. For example, the motor body may not include a gear set, and the output shaft may be directly connected to the rotating shaft of the rotor.
In the above embodiment, the mounting plate portion has a substantially disk shape and the support portion has a substantially fan-shaped plate shape, but the shape of the mounting plate portion and the support portion is not limited thereto and may be appropriately set as needed. For example, the support portion may be formed in a substantially disk shape.
In the above embodiment, the support portion 32 has the opening 321 and the support portion 32A has the opening 321A, but the present invention is not limited thereto, and for example, as shown in fig. 3A and 3B, a through hole 322B penetrating the support portion 32B in the direction of the axis L of the output shaft may be provided in the support portion 32B instead of the openings 321 and 321A. At this time, by inserting the output shaft or the shaft portion into the through hole 322B via the C-ring 50B, for example, the gear 20B can be reliably prevented from coming off the output shaft due to movement in the radial direction of the output shaft.
In the above embodiment, the shaft 201 is fitted into the opening 321 through the C-ring 50, and the tip of the output shaft 12A is fitted into the opening 321A of the support portion 32A of the mounting frame 30A through the C-ring 50A, but the present invention is not limited thereto, and the C-ring may be disposed outside, for example, the C-ring may be disposed so as to contact the support portions 32, 32A from the opposite side of the support portions 32, 32A from the motor main bodies 10, 10A, or the C-ring may be disposed between the gears 20, 20A and the support portions 32, 32A. Of course, depending on the actual situation, the C-ring may also be omitted.
In the above embodiment, the pair of locking tabs as the locking portions are provided on the mounting plate portion, and the locking portion is provided with the protruding portion as the locked portion on the housing, but the present invention is not limited to this, and the pair of locking tabs may be provided on the mounting plate portion. The locking portion and the locked portion are not limited to the locking tab and the protruding portion, and may be appropriately provided as needed. For example, protrusions and holes may also be employed as the locking portions and the locked portions.
In the above embodiment, the locking portion is provided in the mounting plate portion, the locked portion is provided in the housing, and the mounting frame is fixed to the housing by locking the locking portion and the locked portion, but the present invention is not limited thereto, and the manner of fixing the mounting frame to the housing may be appropriately set as necessary. For example, the mounting frame may be fixed to the housing by screws or the like, or the mounting frame may be fixed to the housing by an adhesive or the like, and the locking structure, screws, and adhesive may be freely combined as needed. The locking portion and/or the engaged portion may be formed of, for example, a resin, a metal, or the like, and in this case, the locking portion and the engaged portion may be joined by melting the resin, or the locking portion and the engaged portion may be joined by welding.
Claims (11)
1. A motor apparatus comprising: a motor body having a housing and an output shaft protruding from the housing; and a gear connected to a portion of the output shaft protruding from the housing, characterized in that,
the motor apparatus further includes a mounting frame having a mounting portion mounted on the housing and a supporting portion connected to the mounting portion, wherein the supporting portion is located on a side of the gear opposite to the housing in an axial direction of the output shaft and supports a side of the gear opposite to the housing,
the mounting portion includes a mounting plate portion mounted on the housing and a connection plate portion connecting the mounting plate portion with the support portion,
the mounting plate part is provided with a locking part,
the shell is provided with a locked part,
the mounting frame is fixed to the housing by being locked by the locking portion and the locked portion,
the engaged portion is a protruding portion extending from the housing in a direction perpendicular to an axial direction of the output shaft,
the locking parts are pairs of locking protruding pieces protruding toward the shell side, the locking protruding pieces clamp the protruding parts from two sides,
the mounting plate portion is formed in a circular plate shape,
the support portion has a fan-like shape.
2. A motor apparatus according to claim 1, wherein,
the gear is mounted to the output shaft in such a manner that a front end of the output shaft protrudes from the gear,
the support portion supports a front end of the output shaft to support a side of the gear opposite to the housing.
3. A motor apparatus as claimed in claim 2, wherein,
the support portion has an opening portion that opens toward one side in a direction perpendicular to an axial direction of the output shaft, and is configured to allow a tip of the output shaft to be fitted from one side in the direction perpendicular to the axial direction of the output shaft.
4. A motor apparatus according to claim 3, wherein,
the front end of the output shaft is fitted into the opening via a C-shaped ring, and the C-shaped ring surrounds the entire peripheral surface of the front end of the output shaft together with the opening.
5. A motor apparatus as claimed in claim 2, wherein,
the support portion has a through hole penetrating the support portion in an axial direction of the output shaft, and the output shaft is inserted into the through hole.
6. A motor apparatus according to claim 1, wherein,
the gear is provided with a shaft portion protruding from an end face of the gear on the opposite side of the housing,
one side of the gear, which is close to the shell, is connected with the output shaft,
the support portion supports the shaft portion to support a side of the gear opposite to the housing.
7. The motor apparatus of claim 6 wherein,
a clamping part is arranged on the gear,
the gear is connected to the output shaft by engaging the engaging portion with the front end of the output shaft.
8. The motor apparatus of claim 6 wherein,
the support portion has an opening portion that opens toward one side in a direction perpendicular to an axial direction of the output shaft, and is configured to allow the shaft portion to be fitted from one side in the direction perpendicular to the axial direction of the output shaft.
9. A motor apparatus according to claim 8, wherein,
the shaft portion is fitted into the opening portion via a C-shaped ring, and the C-shaped ring surrounds the entire peripheral surface of the shaft portion together with the opening portion.
10. The motor apparatus of claim 6 wherein,
the support portion has a through hole penetrating the support portion in an axial direction of the output shaft, and the shaft portion is inserted into the through hole.
11. A motor apparatus according to claim 1, wherein,
a rotor, a stator, and a gear set that transmits rotation of the rotor to the output shaft are housed within the housing.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610736501.5A CN107786037B (en) | 2016-08-26 | 2016-08-26 | Motor device |
| TW106119538A TW201807931A (en) | 2016-08-26 | 2017-06-13 | Motor device enabling to prevent the output shaft from tilting, increase the rotational precision of output shaft, and prevent bad engagement in gears and the generation of noise |
| JP2017149583A JP2018033300A (en) | 2016-08-26 | 2017-08-02 | Motor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610736501.5A CN107786037B (en) | 2016-08-26 | 2016-08-26 | Motor device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107786037A CN107786037A (en) | 2018-03-09 |
| CN107786037B true CN107786037B (en) | 2024-03-22 |
Family
ID=61303737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610736501.5A Active CN107786037B (en) | 2016-08-26 | 2016-08-26 | Motor device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2018033300A (en) |
| CN (1) | CN107786037B (en) |
| TW (1) | TW201807931A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7139228B2 (en) * | 2018-11-22 | 2022-09-20 | 株式会社ユーシン | Gear device manufacturing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103101307A (en) * | 2011-11-11 | 2013-05-15 | 精工爱普生株式会社 | Wiper unit and liquid ejecting apparatus |
| CN103154556A (en) * | 2010-10-20 | 2013-06-12 | Ntn株式会社 | Electric direct-acting actuator and electric disc-brake device |
| CN103261672A (en) * | 2010-12-09 | 2013-08-21 | 罗伯特·博世有限公司 | Starter device |
| JP2014101957A (en) * | 2012-11-21 | 2014-06-05 | Mitsuba Corp | Motor with reduction gear |
| CN206041733U (en) * | 2016-08-26 | 2017-03-22 | 日本电产三协电子(东莞)有限公司 | Motor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2559891B2 (en) * | 1990-07-20 | 1996-12-04 | 三菱電機株式会社 | Decelerator |
| JP2533531Y2 (en) * | 1991-11-29 | 1997-04-23 | 株式会社テック | Gear mechanism |
| JP3208721B2 (en) * | 1994-03-09 | 2001-09-17 | 京セラミタ株式会社 | Document separation mechanism of automatic document feeder |
| JP2000280557A (en) * | 1999-01-28 | 2000-10-10 | Seiko Epson Corp | Recorder |
| ITTO20030267A1 (en) * | 2003-04-07 | 2004-10-08 | Graziano Trasmissioni Spa | MOTORIZED AXLE FOR A VEHICLE. |
-
2016
- 2016-08-26 CN CN201610736501.5A patent/CN107786037B/en active Active
-
2017
- 2017-06-13 TW TW106119538A patent/TW201807931A/en unknown
- 2017-08-02 JP JP2017149583A patent/JP2018033300A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103154556A (en) * | 2010-10-20 | 2013-06-12 | Ntn株式会社 | Electric direct-acting actuator and electric disc-brake device |
| CN103261672A (en) * | 2010-12-09 | 2013-08-21 | 罗伯特·博世有限公司 | Starter device |
| CN103101307A (en) * | 2011-11-11 | 2013-05-15 | 精工爱普生株式会社 | Wiper unit and liquid ejecting apparatus |
| JP2014101957A (en) * | 2012-11-21 | 2014-06-05 | Mitsuba Corp | Motor with reduction gear |
| CN206041733U (en) * | 2016-08-26 | 2017-03-22 | 日本电产三协电子(东莞)有限公司 | Motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107786037A (en) | 2018-03-09 |
| TW201807931A (en) | 2018-03-01 |
| JP2018033300A (en) | 2018-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6505801B2 (en) | Lift device for vehicle rear door and drive device therefor | |
| CN109075658B (en) | Rotary actuator and robot | |
| US6701803B1 (en) | Reduction gears-integrated actuator | |
| CN107407278B (en) | Rotor and pump device | |
| US20200321833A1 (en) | Actuator | |
| EP2963782B1 (en) | Motor device | |
| CN109661528B (en) | Wave gear speed reducer with motor | |
| US9557564B2 (en) | Rotary body driving apparatus | |
| US20200241297A1 (en) | Drive device used in head-up display device and head-up display device | |
| EP3632626A1 (en) | Power tool | |
| JP2018066454A (en) | Geared motor | |
| CN107786037B (en) | Motor device | |
| US11759945B2 (en) | Dual-output-shaft servo and robot | |
| JP2006304558A (en) | Hypocycloid speed reducer built in motor | |
| CN114341663A (en) | Driving motor, scanning module and laser radar | |
| CN108351015B (en) | Motion control device | |
| JP6216742B2 (en) | Geared motor | |
| JP2020108228A (en) | Driving device | |
| JP2020192661A (en) | robot | |
| JP2010091009A (en) | Motor with speed reduction mechanism | |
| JP7355544B2 (en) | geared motor | |
| JP2003176855A (en) | Self-aligning type motor mount | |
| CN111434012B (en) | Gear system with motor | |
| CN113302509A (en) | Driving motor, scanning module and laser radar | |
| CN212410851U (en) | Driving motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |