CN110768459B - Permanent magnet brushless direct current planetary gear speed reduction motor - Google Patents
Permanent magnet brushless direct current planetary gear speed reduction motor Download PDFInfo
- Publication number
- CN110768459B CN110768459B CN201911246924.9A CN201911246924A CN110768459B CN 110768459 B CN110768459 B CN 110768459B CN 201911246924 A CN201911246924 A CN 201911246924A CN 110768459 B CN110768459 B CN 110768459B
- Authority
- CN
- China
- Prior art keywords
- ring
- gear
- output shaft
- cross
- groove
- 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
- 230000009467 reduction Effects 0.000 title description 4
- 230000008859 change Effects 0.000 claims description 23
- 239000003638 chemical reducing agent Substances 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 230000005389 magnetism Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Retarders (AREA)
Abstract
The invention discloses a novel permanent magnet brushless direct current planetary gear speed reducing motor which comprises a permanent magnet brushless motor, a connecting plate, motor rotating teeth, a shell sleeve, bolts, a clamping ring, an adjusting ring, a primary speed changing device, a secondary speed changing device, an end cover and inner hexagon bolts. The speed reducing motor has a two-stage speed reducing function, can realize the switching between the first-stage speed changing and the second-stage speed changing through manual adjustment, has an exquisite structure, is simple to use, realizes two functions without replacing the structure of equipment, and greatly saves the cost for replacing the equipment.
Description
Technical Field
The invention relates to a speed reducing motor, in particular to a permanent magnet brushless direct current planetary gear speed reducing motor.
Background
The permanent magnet brushless motor is a permanent magnet motor controlled by electronic circuit phase change or current, and the planetary gear reducer is also called a planetary reducer and a servo reducer. In the reducer family, the planetary reducer is widely applied to transmission systems such as servo motors, stepping motors, direct current motors and the like due to the advantages of small size, high transmission efficiency, wide reduction range, high precision and the like. The function of the device is mainly used for reducing the rotating speed, increasing the torque and reducing the rotational inertia ratio of the load/the motor on the premise of ensuring the precision transmission. The planetary gear speed reducer has fixed drive ratio, changes the drive ratio and needs to change the speed reducer or go to the producer to change spare part and change the tooth number of the gear and realize, this in-process greatly increased the cost of purchasing equipment, and the phenomenon of stopping work appears in the in-process of changing the speed reducer, influences the operation production.
Disclosure of Invention
The invention aims to provide a permanent magnet brushless direct current planetary gear speed reduction motor to solve the technical problem.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a permanent magnetism brushless direct current planetary gear reducer motor, changes tooth, shell, bolt, clamp ring, adjustable ring, one-level speed change gear, second grade speed change gear, end cover, hexagon socket head cap screw including permanent magnetism brushless motor, connecting plate, motor, permanent magnetism brushless motor front end integrated into one piece has the connecting plate, permanent magnetism brushless motor pivot outer end is fixed with the motor and changes the tooth, shell rear end four corners is passed through the bolt and is fixed with the connecting plate, the clamp ring cup joints the installation with the shell outer end, and motor commentaries on classics tooth internally mounted has one-level speed change gear and second grade speed change gear in proper order, the end cover is installed through hexagon socket head cap screw to the shell front end.
On the basis of the technical scheme, the shell sleeve comprises a first gear ring, a second gear ring, a protective shell, a screw rod gear and an annular groove, the first gear ring and the second gear ring which are parallel and are incomplete are arranged inside the shell sleeve from back to front respectively, the periphery of the second gear ring is divided into three protective shells in an equal angular degree mode, the screw rod is axially connected to the center of the protective shell, the screw rod gear is fixed to the front end of the screw rod, the screw rod can rotate for 360 degrees through the screw rod gear, and the annular groove is formed in the outer wall of the shell sleeve.
On the basis of the technical scheme, the clamping ring comprises a toothed ring, moving blocks, screw holes and inner teeth, the two parallel toothed rings are fixed through the three moving blocks, the screw holes are formed in the centers of the moving blocks, the screw holes are in threaded connection with the screw rods, the toothed ring is in axial sliding connection with the inner ring of the second toothed ring, the inner teeth are formed in the inner ring of the moving blocks, and the inner teeth and the second toothed ring form a complete toothed ring.
On the basis of the technical scheme, the adjusting ring comprises an adjusting toothed ring and an anti-skidding lug, the front part and the rear part of the outer ring of the adjusting ring are respectively and integrally formed with the anti-skidding lug and the adjusting toothed ring, the adjusting ring rotates 360 degrees along the annular groove, and the adjusting toothed ring is respectively meshed with the three screw gears.
On the basis of the technical scheme, the primary speed changing device comprises a first triangular plate, a first planetary gear, a first planetary bearing, a first output shaft, a sun gear and cross teeth, wherein three first planetary gears are installed on the back surface of the first triangular plate through the first planetary bearing, the inner side of the first planetary gear is meshed with the rotating teeth of the motor, the outer ring of the first planetary gear is meshed with a first gear ring, the front center of the first triangular plate is vertically fixed with the first output shaft, the outer wall of the first output shaft is fixed with the sun gear, and the front end of the first output shaft is integrally formed with the cross teeth.
On the basis of the technical scheme, the two-stage speed changing device comprises a second triangular plate, a second planetary gear, a second planetary bearing and a cross output shaft sleeve, wherein the back of the second triangular plate is provided with three second planetary gears through the second planetary bearing, the three second planetary gears are arranged between two toothed rings, an outer ring is meshed with the second toothed ring, the cross output shaft sleeve is vertically fixed at the front center of the second triangular plate, and the first output shaft axially slides in the cross output shaft sleeve.
On the basis of the technical scheme, the end cover comprises a cover disc, a sealing bearing, a total output shaft, a shaft sleeve groove, a connector, a cross groove, a compression spring and a spring groove, wherein the center of the cover disc is in interference fit with the sealing bearing, the inner side of the sealing bearing is in interference fit with the total output shaft, the inner side of the back face of the total output shaft is provided with the shaft sleeve groove, the cross output shaft sleeve is spliced with the shaft sleeve groove, the connector is in sliding connection with the inner wall of the shaft sleeve groove, the cross groove is formed in the connector, one end of the cross groove is spliced with the first output shaft through the cross groove, the other end of the cross groove is fixed with the compression spring, the spring groove is formed in the deep position of the.
On the basis of the technical scheme, the secondary speed changing device can move back and forth along the inside of the shell sleeve along with the clamping ring, when the clamping ring moves to the rear end of the second gear ring, the sun gear is disconnected with the second planetary gear, the cross-shaped output shaft sleeve is disconnected with the shaft sleeve groove, the first output shaft is inserted into the connector to drive the main output shaft to rotate, and primary speed changing is realized; when the clamping ring moves to the front end of the second gear ring, the sun gear is meshed with the second planetary gear, the cross-shaped output shaft sleeve is inserted into the shaft sleeve groove to drive the main output shaft to rotate, and secondary speed change is achieved.
Compared with the prior art, the invention has the following advantages: the speed reducing motor has a secondary speed reducing function, and can realize the switching between primary speed changing and secondary speed changing through manual adjustment, in the switching process, the adjusting ring can keep three screw gears to synchronously rotate, so that the clamping ring drives the secondary speed changing device to axially move in the shell sleeve, the primary speed changing device is directly connected with the main output shaft to realize the primary speed changing, or the primary speed changing device is connected with the secondary speed changing device, the secondary speed changing is realized by connecting the secondary speed changing device with the main output shaft, the structure is exquisite, the use is simple, the two functions are realized without replacing the structure of equipment, and the cost for replacing the equipment is greatly saved.
Drawings
Fig. 1 is a schematic view of the external structure of the present invention.
Fig. 2 is an assembly schematic of the present invention.
Fig. 3 is a schematic view of the appearance structure of the shell of the present invention.
Fig. 4 is a schematic cross-sectional view of a shell of the present invention.
FIG. 5 is a schematic view of an appearance structure of the clamp ring of the present invention.
FIG. 6 is a schematic view of the appearance of the adjusting ring of the present invention.
Fig. 7 is a schematic view of an appearance structure of the one-stage transmission according to the present invention.
FIG. 8 is a schematic view of the external structure of the two-stage transmission according to the present invention.
Fig. 9 is a schematic structural diagram of the appearance of the end cap of the present invention.
FIG. 10 is a schematic cross-sectional view of an end cap of the present invention.
Fig. 11 is a one-stage shift cross-sectional view of the present invention.
Fig. 12 is a two-stage shift cross-sectional view of the present invention.
In the figure: 1. permanent magnet brushless motor, 2, connecting plate, 3, motor rotary gear, 4, housing, 5, bolt, 6, clamping ring, 7, adjusting ring, 8, primary speed changing device, 9, secondary speed changing device, 10, end cover, 11, hexagon socket head cap screw, 12, first gear ring, 13, second gear ring, 14, protective housing, 15, screw, 16, screw gear, 17, ring groove, 18, gear ring, 19, moving block, 20, screw hole, 21, internal gear, 22, adjusting gear ring, 23, anti-slip bump, 24, first triangle plate, 25, first planet gear, 26, first planet bearing, 27, first output shaft, 28, sun gear, 29, cross gear, 30, second triangle plate, 31, second planet gear, 32, second planet bearing, 33, cross output shaft sleeve, 34, cover disc, 35, sealed bearing, 36, total output shaft, 37, shaft sleeve groove, 38, 39. cross recess, 40, compression spring, 41, spring groove.
Detailed Description
The invention is explained in further detail below with reference to the figures and the specific embodiments.
As shown in fig. 1-12, a permanent magnet brushless dc planetary gear reducer motor, includes permanent magnet brushless motor 1, connecting plate 2, motor rotary teeth 3, shell 4, bolt 5, clamping ring 6, adjusting ring 7, one-level speed change gear 8, second grade speed change gear 9, end cover 10, hexagon socket head cap screw 11, permanent magnet brushless motor 1 front end integrated into one piece has connecting plate 2, permanent magnet brushless motor 1 pivot outer end is fixed with motor rotary teeth 3, shell 4 rear end four corners is fixed with connecting plate 2 through bolt 5, clamping ring 6 cup joints the installation with shell 4 outer end, and motor rotary teeth 3 internally mounted has one-level speed change gear 8 and second grade speed change gear 9 in proper order, shell 4 front end installs end cover 10 through hexagon socket head cap screw 11.
The shell 4 includes first ring gear 12, second ring gear 13, protective housing 14, screw rod 15, screw rod gear 16, ring channel 17, shell 4 is inside by back to preceding division respectively have parallel first ring gear 12 and incomplete second ring gear 13, second ring gear 13 circumference equiangular separation has three protective housing 14, protective housing 14 central axial is connected with screw rod 15, screw rod gear 16 is fixed with to screw rod 15 front end, screw rod 15 can 360 rotations through screw rod gear 16, shell 4 outer wall is opened there is ring channel 17.
The clamping ring 6 comprises a toothed ring 18, moving blocks 19, screw holes 20 and inner teeth 21, the two parallel toothed rings 18 are fixed through the three moving blocks 19, the center of each moving block 19 is provided with a screw hole 20, each screw hole 20 is in threaded connection with the corresponding screw 15, the toothed ring 18 is in axial sliding connection with the second toothed ring 13, the inner rings of the moving blocks 19 are provided with the inner teeth 21, and the inner teeth 21 and the second toothed ring 13 form a complete toothed ring.
The adjusting ring 7 comprises an adjusting toothed ring 22 and an anti-skidding lug 23, the front and the back of the outer ring of the adjusting ring 7 are respectively and integrally formed with the anti-skidding lug 23 and the adjusting toothed ring 22, the adjusting ring 7 rotates 360 degrees along the annular groove 17, and the adjusting toothed ring 22 is respectively meshed with the three screw gears 16.
One-level speed change gear 8 includes first set-square 24, first planetary gear 25, first planet bearing 26, first output shaft 27, sun gear 28, cross tooth 29, three is installed through first planet bearing 26 at the 24 back of first set-square three first planetary gear 25, three first planetary gear 25 inboard changes tooth 3 meshing with the motor, and outer lane and the meshing of first ring gear 12, the preceding center of first set-square 24 is fixed with first output shaft 27 perpendicularly, first output shaft 27 outer wall is fixed with sun gear 28, first output shaft 27 front end integrated into one piece has cross tooth 29.
The two-stage transmission 9 includes a second triangle plate 30, a second planetary gear 31, a second planetary bearing 32, and a cross output shaft sleeve 33, three second planetary gears 31 are mounted on the back of the second triangle plate 30 through the second planetary bearings 32, the three second planetary gears 31 are disposed between the two toothed rings 18, the outer ring of each second planetary gear 31 is meshed with the second ring gear 13, the cross output shaft sleeve 33 is vertically fixed on the center of the front of the second triangle plate 30, and the first output shaft 27 axially slides along the cross output shaft sleeve 33.
The end cover 10 comprises a cover disc 34, a sealing bearing 35, a total output shaft 36, a shaft sleeve groove 37, a connector 38, a cross groove 39, a compression spring 40 and a spring groove 41, the sealing bearing 35 is in interference fit at the center of the cover disc 34, the total output shaft 36 is in interference fit at the inner side of the sealing bearing 35, the shaft sleeve groove 37 is formed in the inner side of the back face of the total output shaft 36, the cross output shaft sleeve 33 is connected with the shaft sleeve groove 37 in an inserted mode, the connector 38 is in sliding connection with the inner wall of the shaft sleeve groove 37, the cross groove 39 is formed in the connector 38, one end of the cross groove 39 is connected with the first output shaft 27 in an inserted mode through the cross groove 39, the compression spring 40 is fixed to the other end of the cross groove 40, the spring groove 41 is.
The secondary speed changing device 9 can move back and forth along the inside of the shell sleeve 4 along with the clamping ring 6, when the clamping ring 6 moves to the rear end of the second gear ring 13, the sun gear 28 is disconnected from the second planetary gear 31, the cross-shaped output shaft sleeve 33 is disconnected from the shaft sleeve groove 37, the first output shaft 27 is connected with the connector 38 in an inserted mode, the main output shaft 36 is driven to rotate, and primary speed changing is achieved; when the clamping ring 6 moves to the front end of the second gear ring 13, the sun gear 28 is meshed with the second planetary gear 31, and the cross output shaft sleeve 33 is inserted into the shaft sleeve groove 37 to drive the main output shaft 36 to rotate, so that two-stage speed change is realized.
The working principle of the invention is as follows: the anti-skid lugs are manually rotated to drive the three screw gears to synchronously rotate, so that when the clamping ring drives the secondary speed change device to move to the rear end of the second gear ring, the sun gear is disconnected with the second planetary gear, the cross output shaft sleeve is disconnected with the shaft sleeve groove, the first output shaft is inserted into the connector to drive the main output shaft to rotate, and primary speed change is realized; when the clamping ring moves to the front end of the second gear ring, the sun gear is meshed with the second planetary gear, the cross-shaped output shaft sleeve is inserted into the shaft sleeve groove to drive the main output shaft to rotate, and secondary speed change is achieved.
The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that variations, modifications, substitutions and alterations can be made in the embodiment without departing from the principles and spirit of the invention.
Claims (1)
1. The utility model provides a brushless direct current planetary gear reducer motor of permanent magnetism, includes permanent magnetism brushless motor (1), connecting plate (2), motor commentaries on classics tooth (3), shell (4), bolt (5), clamp ring (6), adjustable ring (7), one-level speed change gear (8), second grade speed change gear (9), end cover (10), hexagon socket head cap screw (11), its characterized in that: the front end of the permanent magnet brushless motor (1) is integrally formed with a connecting plate (2), the outer end of a rotating shaft of the permanent magnet brushless motor (1) is fixed with a motor rotating tooth (3), four corners of the rear end of the shell (4) are fixed with the connecting plate (2) through bolts (5), the clamping ring (6) is sleeved with the outer end of the shell (4), a primary speed change device (8) and a secondary speed change device (9) are sequentially installed inside the motor rotating tooth (3), and an end cover (10) is installed at the front end of the shell (4) through an inner hexagon bolt (11);
the shell (4) comprises a first gear ring (12), a second gear ring (13), a protective shell (14), a screw (15), a screw gear (16) and an annular groove (17), wherein the first gear ring (12) and the second gear ring (13) which are parallel and incomplete are respectively arranged in the shell (4) from back to front, the second gear ring (13) is circumferentially divided into three protective shells (14) at equal angles, the screw (15) is axially connected to the center of each protective shell (14), the screw gear (16) is fixed at the front end of each screw (15), the screws (15) can rotate for 360 degrees through the screw gears (16), and the annular groove (17) is formed in the outer wall of the shell (4);
the clamping ring (6) comprises a toothed ring (18), moving blocks (19), screw holes (20) and inner teeth (21), the two parallel toothed rings (18) are fixed through the three moving blocks (19), the screw holes (20) are formed in the centers of the moving blocks (19), the screw holes (20) are in threaded connection with the screw rods (15), the toothed ring (18) is in axial sliding connection with the inner ring of the second gear ring (13), the inner rings of the moving blocks (19) are provided with the inner teeth (21), and the inner teeth (21) and the second gear ring (13) form a complete gear ring;
the adjusting ring (7) comprises an adjusting toothed ring (22) and anti-skidding lugs (23), the anti-skidding lugs (23) and the adjusting toothed ring (22) are integrally formed on the front and the rear of the outer ring of the adjusting ring (7) respectively, the adjusting ring (7) rotates for 360 degrees along the annular groove (17), and the adjusting toothed ring (22) is meshed with the three screw gears (16) respectively;
the primary speed changing device (8) comprises a first triangular plate (24), a first planetary gear (25), a first planetary bearing (26), a first output shaft (27), a sun gear (28) and cross teeth (29), wherein the back of the first triangular plate (24) is provided with three first planetary gears (25) through the first planetary bearing (26), the inner sides of the three first planetary gears (25) are meshed with the motor rotating teeth (3), the outer rings of the three first planetary gears are meshed with a first gear ring (12), the center of the front surface of the first triangular plate (24) is vertically fixed with the first output shaft (27), the outer wall of the first output shaft (27) is fixed with the sun gear (28), and the front end of the first output shaft (27) is integrally formed with the cross teeth (29);
the two-stage speed changing device (9) comprises a second triangular plate (30), second planet gears (31), second planet bearings (32) and a cross output shaft sleeve (33), wherein the back of the second triangular plate (30) is provided with three second planet gears (31) through the second planet bearings (32), the three second planet gears (31) are arranged between two toothed rings (18), the outer ring of each second planet gear is meshed with the second gear ring (13), the cross output shaft sleeve (33) is vertically fixed at the center of the front of the second triangular plate (30), and the first output shaft (27) axially slides along the cross output shaft sleeve (33);
the end cover (10) comprises a cover disc (34), a sealing bearing (35), a total output shaft (36), a shaft sleeve groove (37), a connector (38), a cross groove (39), a compression spring (40) and a spring groove (41), the sealing bearing (35) is arranged in the center of the cover disc (34) in an interference fit mode, the total output shaft (36) is arranged in the sealing bearing (35) in an interference fit mode, the shaft sleeve groove (37) is formed in the inner side of the back face of the total output shaft (36), the cross output shaft sleeve (33) is connected with the shaft sleeve groove (37) in an inserted mode, the connector (38) is connected with the inner wall of the shaft sleeve groove (37) in a sliding mode, the cross groove (39) is formed in the connector (38), one end of the cross groove (39) is connected with the first output shaft (27) in an inserted mode through the cross groove (39), the compression spring (40) is fixed to the other end, the compression spring (40) is arranged in the spring groove (41);
the two-stage speed changing device (9) can move back and forth along the inner side of the shell sleeve (4) along with the clamping ring (6), when the clamping ring (6) moves to the rear end of the second gear ring (13), the sun gear (28) is disconnected with the second planetary gear (31), the cross-shaped output shaft sleeve (33) is disconnected with the shaft sleeve groove (37), the first output shaft (27) is inserted into the connector (38) to drive the main output shaft (36) to rotate, and primary speed changing is achieved; when the clamping ring (6) moves to the front end of the second gear ring (13), the sun gear (28) is meshed with the second planetary gear (31), the cross output shaft sleeve (33) is inserted into the shaft sleeve groove (37) to drive the main output shaft (36) to rotate, and two-stage speed change is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911246924.9A CN110768459B (en) | 2019-12-09 | 2019-12-09 | Permanent magnet brushless direct current planetary gear speed reduction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911246924.9A CN110768459B (en) | 2019-12-09 | 2019-12-09 | Permanent magnet brushless direct current planetary gear speed reduction motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110768459A CN110768459A (en) | 2020-02-07 |
| CN110768459B true CN110768459B (en) | 2021-05-14 |
Family
ID=69341380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911246924.9A Active CN110768459B (en) | 2019-12-09 | 2019-12-09 | Permanent magnet brushless direct current planetary gear speed reduction motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110768459B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145910A (en) * | 2020-10-29 | 2020-12-29 | 深圳市随拍科技有限公司 | Folding tripod head stabilizer |
| CN117097073A (en) * | 2023-08-30 | 2023-11-21 | 余姚市雀美电机有限公司 | Brushless motor with gear mechanism |
| CN117277682B (en) * | 2023-09-26 | 2024-05-17 | 无锡捷欣杰自动化科技有限公司 | Servo motor carrying high-precision planetary reducer |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB808997A (en) * | 1957-01-30 | 1959-02-18 | Radio A I R Applic Ind Radioel | Angular positioning system |
| JP4405900B2 (en) * | 2004-03-10 | 2010-01-27 | 株式会社マキタ | Impact driver |
| EP1970165A1 (en) * | 2007-03-12 | 2008-09-17 | Robert Bosch Gmbh | A rotary power tool operable in a first speed mode and a second speed mode |
| CN101713449B (en) * | 2009-05-07 | 2012-06-20 | 浙江吉利汽车研究院有限公司 | Synchronizer in a mechanical speed changer |
| DE102010021057A1 (en) * | 2010-05-19 | 2011-11-24 | Gm Global Technology Operations Llc (N.D.Ges.D. Staates Delaware) | Synchronizing device for change speed gearbox, has synchronizing body, which is fixed on gearbox shaft in torque-proof manner and has external teeth |
| WO2013010888A2 (en) * | 2011-07-20 | 2013-01-24 | C. Rob. Hammerstein Gmbh & Co. Kg | Adjusting device for a motor vehicle seat |
| CN203363043U (en) * | 2013-05-31 | 2013-12-25 | 上海龙创汽车设计有限公司 | Hand-operated two speed transmission |
| CN209278417U (en) * | 2018-11-28 | 2019-08-20 | 深圳市大科电机有限公司 | A kind of easy-to-mount planetary reduction gear |
-
2019
- 2019-12-09 CN CN201911246924.9A patent/CN110768459B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110768459A (en) | 2020-02-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110768459B (en) | Permanent magnet brushless direct current planetary gear speed reduction motor | |
| CN106230186B (en) | It is a kind of to gather the hollow type harmonic speed reducer for having motor | |
| CN210431137U (en) | Large-torque motor integrated with speed reducer and encoder | |
| CN204794553U (en) | Driving device | |
| CN111795120A (en) | Self-locking planetary reducer | |
| CN209819133U (en) | Lifting type hollow rotating platform | |
| CN105202153A (en) | Welding manipulator horizontal gun rotating mechanism clearance-less gear and output transmission device | |
| CN102269238B (en) | Integral type multifunctional locating transmission mechanism | |
| CN215567685U (en) | Differential gear speed reduction steering engine with compact structure and differential gear speed reduction structure | |
| CN212717830U (en) | High-speed high-efficiency planetary gear reducer | |
| CN214337722U (en) | Folding type electric cylinder | |
| CN205824054U (en) | Servo deceleration machine | |
| CN210889929U (en) | Servo rotary hollow platform | |
| CN109412334B (en) | Speed-changing motor capable of being manually adjusted | |
| CN204253749U (en) | The speed reducer of a kind of involute gear and cycloidal gear combination transmission | |
| CN112431914B (en) | Precision positioning self-locking bearing speed reducer | |
| CN105134881A (en) | Worm wheel and worm mechanism with reverse output function | |
| CN202108936U (en) | Adjustable worm-gear case | |
| CN203542475U (en) | Miniature planetary gear speed reduction labor saver | |
| CN208397247U (en) | A kind of speed changing device | |
| CN112815046A (en) | Differential gear speed reduction steering engine with compact structure and differential gear speed reduction structure | |
| CN105822749A (en) | Gear structure of vehicle sliding door driving motor | |
| CN207454673U (en) | A kind of crawler-type engineering equipment rotary reducer | |
| CN216343130U (en) | Hydraulic cylinder capable of being adjusted manually | |
| CN216478713U (en) | Eccentric shaft planetary reducer |
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 |