CN109083984A - Retarder, decelerating motor and robot - Google Patents

Retarder, decelerating motor and robot Download PDF

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Publication number
CN109083984A
CN109083984A CN201811187936.4A CN201811187936A CN109083984A CN 109083984 A CN109083984 A CN 109083984A CN 201811187936 A CN201811187936 A CN 201811187936A CN 109083984 A CN109083984 A CN 109083984A
Authority
CN
China
Prior art keywords
rigid disk
driving motor
retarder
planet carrier
planetary gear
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.)
Pending
Application number
CN201811187936.4A
Other languages
Chinese (zh)
Inventor
刘成
胡余生
钟成堡
崔中
程中甫
田珍珍
孙豹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN201811187936.4A priority Critical patent/CN109083984A/en
Priority to JP2021514997A priority patent/JP7213958B2/en
Priority to PCT/CN2018/122845 priority patent/WO2020073496A1/en
Publication of CN109083984A publication Critical patent/CN109083984A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H1/00Toothed gearings for conveying rotary motion
    • F16H1/28Toothed gearings for conveying rotary motion with gears having orbital motion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25JMANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J9/00Programme-controlled manipulators
    • B25J9/08Programme-controlled manipulators characterised by modular constructions
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H57/021Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H57/023Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/04Features relating to lubrication or cooling or heating
    • F16H57/048Type of gearings to be lubricated, cooled or heated
    • F16H57/0482Gearings with gears having orbital motion
    • F16H57/0486Gearings with gears having orbital motion with fixed gear ratio
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/08General details of gearing of gearings with members having orbital motion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/08General details of gearing of gearings with members having orbital motion
    • F16H57/082Planet carriers
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Robotics (AREA)
  • Power Engineering (AREA)
  • Retarders (AREA)
  • Manipulator (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

It includes pin wheel housing, rigid disk, planet carrier, crankshaft, planetary gear, needle roller, needle bearing and Cycloidal Wheel that the present invention, which provides a kind of retarder, decelerating motor and robot, retarder,;Pin wheel housing has working chamber, and rigid disk is installed on the axial first end of working chamber, and planet carrier is installed on the axial second end of working chamber, and between rigid disk and planet carrier, multiple needle rollers are engaged between the outer flank of tooth of Cycloidal Wheel and the inner toothed surface of pin wheel housing Cycloidal Wheel;Crank rotation is connected between rigid disk and planet carrier, and the eccentric part and needle bearing of crankshaft are located in the bearing hole of Cycloidal Wheel;Planetary gear is between rigid disk and Cycloidal Wheel or is located at outside rigid disk.Decelerating motor includes retarder and driving motor, and robot includes decelerating motor.Planetary gear, which is placed on working chamber or is arranged in outside retarder, can cancel the setting that planet carrier gear places position, and the volume for reducing planet carrier makes retarder volume-diminished, and the planetary gear in working chamber is effectively protected and sufficient lubrication.

Description

Retarder, decelerating motor and robot
Technical field
The present invention relates to retarding device technical fields, and in particular to a kind of retarder, decelerating motor and application deceleration electricity The robot of machine.
Background technique
The integrated connection of progress is docked by flange between existing RV retarder and driving motor.In general, existing RV retarder includes pin wheel housing, rigid disk, planet carrier, crankshaft, planetary gear, needle roller, needle bearing, Cycloidal Wheel and gear shaft; Have in the middle part of pin wheel housing through axial working chamber, rigid disk is rotatably installed on axially the of working chamber by first bearing One end, planet carrier are rotatably installed on the axial second end of working chamber by second bearing, and Cycloidal Wheel is located at rigid disk and row Between carrier, multiple needle rollers are engaged between the outer flank of tooth of Cycloidal Wheel and the inner toothed surface of pin wheel housing.
Crankshaft is rotatably connected between rigid disk and planet carrier, and needle bearing is sleeved on the eccentric part of crankshaft, partially Center portion and needle bearing are located in the bearing hole of Cycloidal Wheel.The gear towards the outside of RV retarder is provided on planet carrier to put Set, planetary gear are mounted on crankshaft and are located at gear and place in position, and planetary gear periphery is protected by planet carrier;Tooth The flank of tooth end of wheel shaft sequentially pass through after the centre bore of the centre bore of rigid disk, the centre bore of Cycloidal Wheel and planet carrier with planetary gear Engagement.Pin wheel housing is being connected with first flange close to axial one end of rigid disk, the second flange on driving motor shell and the The output shaft of the docking of one flange, driving motor is axially docked with gear shaft.
The connection type of existing RV retarder and driving motor the problem is that, due to planetary gear be located at RV slow down Back on the axial end of driving motor on device, planetary gear in the working chamber of RV retarder not at RV not at also slowing down Device and driving motor seal the joint, therefore gear is arranged on planet carrier and places position and carries out periphery protection to planetary gear, Planet carrier can accommodate planetary gear gear placement position because that need to be arranged due to volume increases, accordingly the overall volume of RV retarder It increases with it, therefore the mounting means of retarder and driving motor in robot is also restricted.
Summary of the invention
The first object of the present invention is to provide a kind of volume and reduces and effective protection planetary gear retarder.
The second object of the present invention is to provide a kind of volume and reduces and effective protection planetary gear decelerating motor.
The third object of the present invention is to provide another volume reduction and effective protection planetary gear decelerating motor.
The fourth object of the present invention is to provide another volume reduction and effective protection planetary gear decelerating motor.
The fifth object of the present invention is to provide another volume reduction and effective protection planetary gear decelerating motor.
The sixth object of the present invention is to provide a kind of volume and reduces and effective protection planetary gear robot.
To solve the first object of the present invention, retarder provided by the invention includes pin wheel housing, rigid disk, planet carrier, song Axis, planetary gear, needle roller, needle bearing and Cycloidal Wheel;Have in the middle part of pin wheel housing through axial working chamber, rigid disk passes through the One bearing is rotatably installed on the axial first end of working chamber, and planet carrier is rotatably installed on working chamber by second bearing Axial second end, Cycloidal Wheel between rigid disk and planet carrier, multiple needle rollers be engaged on Cycloidal Wheel the outer flank of tooth and needle tooth Between the inner toothed surface of shell;Crankshaft is rotatably connected between rigid disk and planet carrier, and needle bearing is sleeved on the bias of crankshaft In portion, eccentric part and needle bearing are located in the bearing hole of Cycloidal Wheel;Planetary gear is mounted on crankshaft and is located at working chamber Interior, in the axial direction of pin wheel housing, planetary gear is between rigid disk and Cycloidal Wheel.
By above scheme as it can be seen that due to the working chamber in the middle part of pin wheel housing need to accommodate can switch Cycloidal Wheel, in working chamber Diameter is larger, and planetary gear, which is placed in working chamber, can then cancel the setting that planet carrier gear places position, reduces planet carrier Volume and reduce the overall volume of retarder, the planetary gear in working chamber is effectively protected and sufficient lubrication.
Further embodiment is that the flank of tooth of the flank of tooth of the first gear teeth group and the second gear teeth group has for dome arcuation.
Therefore first is engaged using bicircular arcs between gear teeth group and the second gear teeth group, and contact force is made to be evenly distributed, Flank profil is not easy to wear, bearing capacity is strong, can guarantee the strength of gear teeth in gear manufacturing processes without infiltration quenching technical And service life.
Further embodiment is that retarder includes at least two Cycloidal Wheels, is provided with and Cycloidal Wheel quantity Matching on crankshaft Eccentric part.
To solve the second object of the present invention, decelerating motor provided by the invention includes driving motor and retarder, is slowed down Device uses above-mentioned retarder;The shell of driving motor is fixedly connected with rigid disk, and the output shaft of driving motor is equipped with first Gear teeth group, the first gear teeth group are engaged with planetary gear second gear teeth group.
By above scheme as it can be seen that the minimum diameter of flow path of pin wheel housing is larger, planetary gear, which is placed in working chamber then, be can use The planet carrier gear that disappears places the setting of position, reduces the volume of planet carrier and reduces the volume of retarder therewith, decelerating motor Overall volume also reduce therewith, and the planetary gear being located in working chamber is effectively protected and sufficient lubrication.
Further embodiment is that the output shaft of driving motor is gear shaft, and the first gear teeth group machine-shaping is on output shaft.
Therefore since planetary gear is close to the axial end of rigid disk, the i.e. output shaft of planetary gear and driving motor Position be closer to, the output shaft of driving motor is not necessarily to external output shaft, and directly processes on the output shaft of driving motor In first gear teeth group, to reduce the aperture of input shaft bore in the middle part of retarder, the whole body of decelerating motor is further decreased Product.
Further embodiment is to be locked between rigid disk and the shell of driving motor by bolt.
Therefore it is directly connected between rigid disk and the shell of driving motor to further decrease the body of decelerating motor Product.
Another further embodiment is that the shell of rigid disk and driving motor is integrally formed.
Therefore after the integrated molding of the end cap of rigid disk and driving motor can reduce driving motor end cap and rigid disk End, further reduces the axial dimension of decelerating motor.
To solve the third object of the present invention, decelerating motor provided by the invention includes driving motor and retarder, is slowed down Device uses above-mentioned retarder;The shell of driving motor is fixedly connected with pin wheel housing, and the output shaft of driving motor is equipped with first Gear teeth group, the first gear teeth group are engaged with planetary gear second gear teeth group.
Therefore the minimum diameter of flow path of pin wheel housing is larger, planetary gear, which is placed in working chamber, can then cancel planet Frame gear places the setting of position, reduces the volume of planet carrier and reduces the volume of retarder therewith, the entirety of decelerating motor Volume also reduces therewith, and the planetary gear being located in working chamber is effectively protected and sufficient lubrication.
Further embodiment is that the output shaft of driving motor is gear shaft, and the first gear teeth group machine-shaping is on output shaft.
Further embodiment is to be fixedly connected between pin wheel housing and the shell of driving motor by fixed frame.
Further scheme is that fixed frame is annular in shape, and the axial first end of fixed frame is sleeved on outside pin wheel housing, fixed frame Axial second end be sleeved on outside the shell of driving motor.
Therefore replace original flanged joint that can reduce retarder and decelerating motor using cricoid fixed frame Radial dimension.
To solve the fourth object of the present invention, decelerating motor provided by the invention includes driving motor and retarder, is slowed down Device includes pin wheel housing, rigid disk, planet carrier, crankshaft, planetary gear, needle roller, needle bearing and Cycloidal Wheel;Have in the middle part of pin wheel housing Through axial working chamber, rigid disk is rotatably installed on the axial first end of working chamber by first bearing, and planet carrier is logical The axial second end that second bearing is rotatably installed on working chamber is crossed, Cycloidal Wheel is multiple between rigid disk and planet carrier Needle roller is engaged between the outer flank of tooth of Cycloidal Wheel and the inner toothed surface of pin wheel housing;Crankshaft is rotatably connected to rigid disk and planet carrier Between, needle bearing is sleeved on the eccentric part of crankshaft, and eccentric part and needle bearing are located in the bearing hole of Cycloidal Wheel;Planet Gear is mounted on crankshaft and is located at outside working chamber, and in the axial direction of pin wheel housing, planetary gear is located on the outside of rigid disk;Driving The shell of motor is fixedly connected with rigid disk and has gap between shell and rigid disk, and planetary gear is located in gap, drives The output shaft of motor is equipped with the first gear teeth group, and the first gear teeth group is engaged with planetary gear second gear teeth group.
By above scheme as it can be seen that being arranged planetary gear outside rigid disk, then it can cancel planet carrier gear and place position Setting reduces the volume of planet carrier and reduces the overall volume of retarder and decelerating motor;And planetary gear is located at rigidity In gap between disk and driving motor, the fixed frame or flange being connected between retarder and driving motor enclose clearance seal Around it is not necessary that additionally setting protection mechanism can be to planetary gear effective protection.
Further embodiment is that the flank of tooth of the flank of tooth of the first gear teeth group and the second gear teeth group has for dome arcuation.
Therefore first is engaged using bicircular arcs between gear teeth group and the second gear teeth group, and contact force is made to be evenly distributed, Flank profil is not easy to wear, bearing capacity is strong, can guarantee the strength of gear teeth in gear manufacturing processes without infiltration quenching technical And service life.
Further embodiment is that the output shaft of driving motor is gear shaft, and the first gear teeth group machine-shaping is on output shaft.
Further embodiment is to be fixedly connected between rigid disk and the shell of driving motor by fixed frame.
Further embodiment is that fixed frame is annular in shape, and the axial first end of fixed frame is sleeved on outside rigid disk, fixed frame Axial second end is sleeved on outside the shell of driving motor.
To solve the fifth object of the present invention, decelerating motor provided by the invention includes driving motor and retarder, is slowed down Device includes pin wheel housing, rigid disk, planet carrier, crankshaft, planetary gear, needle roller, needle bearing and Cycloidal Wheel;Have in the middle part of pin wheel housing Through axial working chamber, rigid disk is rotatably installed on the axial first end of working chamber by first bearing, and planet carrier is logical The axial second end that second bearing is rotatably installed on working chamber is crossed, Cycloidal Wheel is multiple between rigid disk and planet carrier Needle roller is engaged between the outer flank of tooth of Cycloidal Wheel and the inner toothed surface of pin wheel housing;Crankshaft is rotatably connected to rigid disk and planet carrier Between, needle bearing is sleeved on the eccentric part of crankshaft, and eccentric part and needle bearing are located in the bearing hole of Cycloidal Wheel;Planet Gear is mounted on crankshaft and is located at outside working chamber, and in the axial direction of pin wheel housing, planetary gear is located on the outside of rigid disk;Driving The shell of motor is fixedly connected with pin wheel housing, has gap between shell and rigid disk and planetary gear is located in gap, is driven The output shaft of motor is equipped with the first gear teeth group, and the first gear teeth group is engaged with planetary gear second gear teeth group.
By above scheme as it can be seen that being arranged planetary gear outside rigid disk, then it can cancel planet carrier gear and place position Setting reduces the volume of planet carrier and reduces the overall volume of retarder and decelerating motor;And planetary gear is located at rigidity In gap between disk and driving motor, the fixed frame or flange being connected between retarder and driving motor enclose clearance seal Around it is not necessary that additionally setting protection mechanism can be to planetary gear effective protection.
Further embodiment is that the flank of tooth of the flank of tooth of the first gear teeth group and the second gear teeth group has for dome arcuation.
Further embodiment is that the output shaft of driving motor is gear shaft, and the first gear teeth group machine-shaping is on output shaft.
Further embodiment is to be fixedly connected between pin wheel housing and the shell of driving motor by fixed frame.
Further embodiment is that fixed frame is annular in shape, and the axial first end of fixed frame is sleeved on outside pin wheel housing, fixed frame Axial second end is sleeved on outside the shell of driving motor.
To solve the fifth object of the present invention, robot provided by the invention includes the first component relative to described first The second component of part rotation, the robot further include such as above-mentioned decelerating motor, and the decelerating motor is connected to described first Between component and the second component.
By above scheme as it can be seen that equally having the characteristics that small in size, and volume using the robot of above-mentioned decelerating motor Lesser decelerating motor increases in the mounting means of robot.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of decelerating motor first embodiment of the present invention.
Fig. 2 is the structural schematic diagram of decelerating motor second embodiment of the present invention.
Fig. 3 is the structural schematic diagram of decelerating motor 3rd embodiment of the present invention.
Fig. 4 is the structural schematic diagram of decelerating motor fourth embodiment of the present invention.
Fig. 5 is the structural schematic diagram of the 5th embodiment of decelerating motor of the present invention.
The invention will be further described with reference to the accompanying drawings and embodiments.
Specific embodiment
Retarder and decelerating motor provided by the invention are applied at joint of robot, and robot can be industrial machinery Arm, industrial machinery arm have the first arm (first component) and the second arm (second component), the first arm and the second arm it Between there is joint component, retarder or decelerating motor are arranged at joint component, by subtracting between the first arm and the second arm Fast device or deceleration strip driving motor, which are realized, to be relatively rotated.
Decelerating motor first embodiment
Referring to Fig. 1, Fig. 1 is the structural schematic diagram of decelerating motor first embodiment of the present invention.Decelerating motor is RV retarder 1 and drives The all-in-one machine that dynamic motor 2 is combined into, RV retarder 1 include pin wheel housing 11, rigid disk 12, planet carrier 13, needle roller 14, Cycloidal Wheel 15, crankshaft 16, needle bearing 162, planetary gear 17, bearing group and oil seal washer 19, bearing group include first bearing 181, Two bearings 182,3rd bearing 183 and fourth bearing 184.
It is formed in pin wheel housing 11 through its axial working chamber, pin wheel housing 11 is provided with internal tooth on the internal perisporium of working chamber Face;There is through-hole, rigid disk 12 is rotatably installed on axial the first of working chamber by first bearing 181 in the middle part of rigid disk 12 End, the middle part of planet carrier 13 have a through-hole, and planet carrier 13 is rotatably installed on axial the of working chamber by second bearing 182 Two ends, and oil seal washer 19 is provided between the inner wall of the axial second end of planet carrier 13 and pin wheel housing 11, in the fixation of oil seal washer 19 Embedded in the axial second end of pin wheel housing 11, and oil seal washer 19 and 13 clearance fit of planet carrier.
Two Cycloidal Wheels 15 are arranged in working chamber and between rigid disk 12 and planet carrier 13, have in the middle part of Cycloidal Wheel 15 There is through-hole, the through-hole of the through-hole and planet carrier 13 in the middle part of through-hole, two Cycloidal Wheels 15 in the middle part of rigid disk 12 is interconnected.Pendulum The periphery of line wheel 15 is provided with the outer flank of tooth, and the number of teeth is less than the number of teeth of the inner toothed surface of 11 inner circumferential of pin wheel housing, multiple needle rollers on the outer flank of tooth 14 are engaged between the outer flank of tooth of Cycloidal Wheel 15 and the inner toothed surface of pin wheel housing 11.It is provided in the axial direction of Cycloidal Wheel 15 through axial Two bearing holes in direction.
There are two the different eccentric part 161 of eccentric position each other, the axial first ends of crankshaft 16 for the middle part tool of crankshaft 16 It is installed in rotation on rigid disk 12 by 3rd bearing 183, the axial second end of crankshaft 16 can be turned by fourth bearing 184 It is mounted on planet carrier 13 dynamicly, two eccentric parts 161 are respectively positioned in working chamber, and each eccentric part 161 is located at and it In the bearing hole of the corresponding Cycloidal Wheel 15 of axial position, and needle bearing 162 is sleeved on eccentric part 161, needle bearing 162 Multiple roller rolls are connected between the outer peripheral surface of eccentric part 161 and the inner peripheral surface of the bearing hole of Cycloidal Wheel 15.
Crankshaft 16 passes through rigid disk 12 and stretches out in outside rigid disk 12 from working chamber, and planetary gear 17 is fixedly mounted on crankshaft On the part for protruding from rigid disk 12 on 16, therefore planetary gear 17 is integrally located at outside working chamber, and is located at the axis of rigid disk 12 Outward.
Driving motor 2 has shell 21, and shell 21 includes the end cap 211 positioned at axial one end, and end cap 211 has in the axial direction The lug boss 212 of lateral protrusions, end cap 211 form a stepped part in the circumferential position of lug boss 212, and driving motor 2 also wraps The output shaft 22 stretched out at one end from end cap 211 is included, the first gear teeth group is provided on the circumferential surface of the end of output shaft 22, is driven The output shaft 22 of motor 2 is gear shaft, and the first gear teeth group machine-shaping is on output shaft 22.
Connection is realized by fixed frame 3 between driving motor 2 and retarder 1, fixed frame 3 is whole annular in shape, and in fixation On the radial section of frame 3, fixed frame 3 is L-shaped, and the axial first end of fixed frame 3 has the first fixed part 31 radially extended, The axial second end of fixed frame 3 has the second fixed part 32 axially extended, and the second fixed part 32 is top-down in Fig. 1 Radially extend to axis direction, the first fixed part 31 is fixedly set on the outer peripheral surface of rigid disk 12, the second fixed part 32 are fixedly set on the lug boss 212 of end cap 211.Gap of the planetary gear 17 between rigid disk 12 and driving motor 2 In.
The output shaft 22 of driving motor 2 extends between two planetary gears 17, and face by the middle part of rigid disk 12 through-hole, The interconnected input through-hole 10 of the through-hole of through-hole and planet carrier 13 in the middle part of two Cycloidal Wheels 15.The first round of output shaft 22 Tooth group is engaged with the second gear teeth group of planetary gear 17, and the second of the flank of tooth of the first gear teeth group of output shaft 22 and planetary gear 17 The flank of tooth of gear teeth group has for dome arcuation.
Planetary gear 17 is arranged outside rigid disk 12, then can cancel the setting that 13 gear of planet carrier places position, is reduced The volume of planet carrier 13 and make the overall volume of retarder and decelerating motor reduce, and planetary gear 17 be located at rigid disk 12 and In gap between driving motor 2, the fixed frame 3 being connected between retarder 1 and driving motor 2 surrounds clearance seal, nothing Protection mechanism need to additionally be arranged can be to planetary gear effective protection.
Referring to fig. 2, Fig. 2 is the structural schematic diagram of decelerating motor second embodiment of the present invention.The periphery of pin wheel housing 11 is arranged Have axially through first through hole 111, fixed frame 4 through to section on it is L-shaped, the axial first end of fixed frame 4 has Prolong the first fixed part 41 radially extended, be provided on the first fixed part 41 axially through the second through-hole 411, fixed frame 4 Axial second end have axially extend and radially to axis direction extend the second fixed part 42, the first fixed part 41 are fixedly set on the outer peripheral surface of rigid disk 12, and first through hole 111 is penetrated through in the second through-hole 411, and it is logical that bolt passes through first Cooperate behind hole 111 and the second through-hole 411 with nut to realize being fixedly connected between retarder 1 and fixed frame 4, the second fixed part 42 are fixedly set on the lug boss 212 of end cap 211.
Referring to Fig. 3, Fig. 3 is the structural schematic diagram of decelerating motor 3rd embodiment of the present invention.Decelerating motor is RV retarder 5 The all-in-one machine being combined into driving motor 6, RV retarder 5 is by pin wheel housing 51, rigid disk 52, planet carrier 53, needle roller 54, Cycloidal Wheel 55, crankshaft 56, needle bearing 562, planetary gear 57, bearing group and oil seal washer 59, bearing group include first bearing 581, Two bearings 582,3rd bearing 583 and fourth bearing 584.
It is formed in pin wheel housing 51 through its axial working chamber 510, pin wheel housing 51 is arranged on the internal perisporium of working chamber 510 There is inner toothed surface;There is through-hole, rigid disk 52 is rotatably installed on the axis of working chamber by first bearing 581 in the middle part of rigid disk 52 To first end, the middle part of planet carrier 53 has through-hole, and planet carrier 53 is rotatably installed on working chamber by second bearing 582 510 axial second end, and oil seal washer 59, oil sealing are provided between the inner wall of the axial second end of planet carrier 53 and pin wheel housing 51 The fixed axial second end for being embedded in pin wheel housing 51 of circle 59, and oil seal washer 59 and 53 clearance fit of planet carrier.
Two Cycloidal Wheels 55 are arranged in working chamber and between rigid disk 52 and planet carrier 53, have in the middle part of Cycloidal Wheel 55 There is through-hole, the through-hole of the through-hole and planet carrier 53 in the middle part of through-hole, two Cycloidal Wheels 55 in the middle part of rigid disk 52 is interconnected.Pendulum The periphery of line wheel 55 is provided with the outer flank of tooth, and the number of teeth is less than the number of teeth of the inner toothed surface of 51 inner circumferential of pin wheel housing, multiple needle rollers on the outer flank of tooth 54 are engaged between the outer flank of tooth of Cycloidal Wheel 55 and the inner toothed surface of pin wheel housing 51.It is provided in the axial direction of Cycloidal Wheel 55 through axial Two bearing holes in direction.
There are two the different eccentric part 561 of eccentric position each other, the axial first ends of crankshaft 56 for the middle part tool of crankshaft 56 It is installed in rotation on rigid disk 52 by 3rd bearing 583, the axial second end of crankshaft 56 can be turned by fourth bearing 584 Be mounted on planet carrier 53 dynamicly, two eccentric parts 561 are respectively positioned in working chamber 510, and each eccentric part 561 be located at In the bearing hole of the corresponding Cycloidal Wheel 55 of its axial position, and needle bearing 562 is sleeved on eccentric part 561, needle bearing 562 multiple roller rolls are connected between the outer peripheral surface of eccentric part 561 and the inner peripheral surface of the bearing hole of Cycloidal Wheel 55.
In working chamber 510, there is space between Cycloidal Wheel 55 and rigid disk 52, planetary gear 57 is fixedly mounted on crankshaft On 56, and planetary gear 57 is located in 510 and in the space between Cycloidal Wheel 55 and rigid disk 52.Driving motor 6 has Shell 61, shell 61 include the end cap 611 positioned at axial one end, and driving motor 6 further includes stretching out at one end from end cap 611 Output shaft 62 is provided with the first gear teeth group on the circumferential surface of the end of output shaft 62, and the output shaft 62 of driving motor 6 is gear shaft, First gear teeth group machine-shaping is on output shaft 62.
It is locked between driving motor 6 and retarder 5 by bolt.It is provided on end cap 611 and passes through for bolt 63 Through-hole, threaded hole is provided in the axial external surface of rigid disk 52, and bolt 63 passes through on the through-hole and rigid disk 52 of end cap 611 Threaded hole locking cooperation, and then realize being fixed to each other between driving motor 6 and retarder 5.Optionally, rigid disk 52 and drive The end cap 611 of dynamic motor 6 be integrally formed with substitute the bolt in the present embodiment connection.
The output shaft 62 of driving motor 6 is extended back across the through-hole at the middle part of rigid disk 52 to two planetary gears 57, and The face input through-hole 50 interconnected by the through-hole of through-hole and planet carrier 53 in the middle part of two Cycloidal Wheels 55.Output shaft 62 First gear teeth group is engaged with the second gear teeth group of planetary gear 57, the flank of tooth and planetary gear 57 of the first gear teeth group of output shaft 62 The flank of tooth of the second gear teeth group have for dome arcuation.
510 internal diameter of working chamber of pin wheel housing 51 is larger, and planetary gear 57, which is placed in working chamber 510, can then cancel planet 53 gear of frame places the setting of position, reduces the volume of planet carrier 53 and reduces the volume of retarder 5 therewith, decelerating motor Overall volume also reduces therewith, and the planetary gear 57 being located in working chamber 510 is effectively protected and sufficient lubrication.
Referring to fig. 4, Fig. 4 is the structural schematic diagram of decelerating motor fourth embodiment of the present invention.In the present embodiment, with third reality It applies example to compare, planetary gear 57 is similarly disposed in working chamber 510, between Cycloidal Wheel 55 and rigid disk 7.Implement with upper one Unlike example, rigid disk 7 is provided with the installation position 71 of invagination on axial outer end face, convex on the end cap 611 of driving motor 6 Portion 612 is played to snap fitted in installation position 71 to realize fixation.Certainly, the cooperation of bolt screw hole can be increased between end cap 611 and rigid disk 7 It is consolidated.
Referring to Fig. 5, Fig. 5 is the structural schematic diagram of the 5th embodiment of decelerating motor of the present invention.In the present embodiment, planetary gear 57 are similarly disposed in working chamber 510, between Cycloidal Wheel 55 and rigid disk 8.Pass through between retarder 5 and driving motor 6 Fixed frame 9 realizes connection, and fixed frame 9 includes annularly that on the radial section of fixed frame 9, fixed frame 9 is L-shaped, fixed frame 9 Axial first end there is the first fixed part 91 for axially extending, the axial second end of fixed frame 9, which has, to be radially extended Second fixed part 92, the first fixed part 91 are sleeved on the outer peripheral surface of pin wheel housing 51, and the second fixed part 92 is sleeved on driving motor 6 End cap 611 lug boss 612 outer peripheral surface on, between the axial outer end face and end cap 611 of rigid disk 8 have gap, with protect Card rigid disk 8 can be relatively rotated relative to end cap 611.
Finally it is emphasized that the above description is only a preferred embodiment of the present invention, it is not intended to restrict the invention, it is right For those skilled in the art, the present invention can have various change and change, all within the spirits and principles of the present invention, Any modification, equivalent substitution, improvement and etc. done, should all be included in the protection scope of the present invention.

Claims (22)

1. retarder, including pin wheel housing, rigid disk, planet carrier, crankshaft, planetary gear, needle roller, needle bearing and Cycloidal Wheel;
Have in the middle part of the pin wheel housing through itself axial working chamber, the rigid disk is rotatably mounted by first bearing In the axial first end of the working chamber, the planet carrier is rotatably installed on the axial direction of the working chamber by second bearing Second end, for the Cycloidal Wheel between the rigid disk and the planet carrier, multiple needle rollers are engaged on the Cycloidal Wheel The outer flank of tooth and the pin wheel housing inner toothed surface between;
The crankshaft is rotatably connected between the rigid disk and the planet carrier, and the needle bearing is sleeved on the song On the eccentric part of axis, the eccentric part and the needle bearing are located in the bearing hole of the Cycloidal Wheel;
It is characterized by:
The planetary gear is mounted on the crankshaft and is located in the working chamber, described in the axial direction of the pin wheel housing Planetary gear is between the rigid disk and the Cycloidal Wheel.
2. retarder according to claim 1, it is characterised in that:
The flank of tooth of first gear teeth group and the flank of tooth of second gear teeth group have for convex arc surface.
3. retarder according to claim 1 or 2, it is characterised in that:
The retarder includes at least two Cycloidal Wheels, and the institute with the Cycloidal Wheel quantity Matching is provided on the crankshaft State eccentric part.
4. decelerating motor, including driving motor and retarder, it is characterised in that:
The retarder uses the described in any item retarders of the claims 1 to 3;
The shell of the driving motor is fixedly connected with the rigid disk, and the output shaft of the driving motor is equipped with first gear teeth Group, first gear teeth group are engaged with second gear teeth of the planetary gear group.
5. decelerating motor according to claim 4, it is characterised in that:
The output shaft of the driving motor is gear shaft, and first gear teeth group machine-shaping is on the output shaft.
6. decelerating motor according to claim 4 or 5, it is characterised in that:
It is bolted to connection between the rigid disk and the shell of the driving motor.
7. decelerating motor according to claim 4 or 5, it is characterised in that:
The shell of the rigid disk and the driving motor is integrally formed.
8. decelerating motor, including driving motor and retarder, it is characterised in that:
The retarder uses the described in any item retarders of the claims 1 to 3;
The shell of the driving motor is fixedly connected with the pin wheel housing, and the output shaft of the driving motor is equipped with first gear teeth Group, first gear teeth group are engaged with second gear teeth of the planetary gear group.
9. decelerating motor according to claim 8, it is characterised in that:
The output shaft of the driving motor is gear shaft, and first gear teeth group machine-shaping is on the output shaft.
10. decelerating motor according to claim 8 or claim 9, it is characterised in that:
It is fixedly connected between the pin wheel housing and the shell of the driving motor by fixed frame.
11. decelerating motor according to claim 10, it is characterised in that:
The fixed frame is annular in shape, and the axial first end of the fixed frame is sleeved on outside the pin wheel housing, the axis of the fixed frame It is sleeved on to second end outside the shell of the driving motor.
12. decelerating motor, including driving motor and retarder, the retarder include pin wheel housing, rigid disk, planet carrier, crankshaft, Planetary gear, needle roller, needle bearing and Cycloidal Wheel;
Have in the middle part of the pin wheel housing through axial working chamber, the rigid disk is rotatably installed on institute by first bearing The axial first end of working chamber is stated, the planet carrier is rotatably installed on axial the second of the working chamber by second bearing End, for the Cycloidal Wheel between the rigid disk and the planet carrier, multiple needle rollers are engaged on the outer of the Cycloidal Wheel Between the flank of tooth and the inner toothed surface of the pin wheel housing;
The crankshaft is rotatably connected between the rigid disk and the planet carrier, and the needle bearing is sleeved on the song On the eccentric part of axis, the eccentric part and the needle bearing are located in the bearing hole of the Cycloidal Wheel;
It is characterized by:
The planetary gear is mounted on the crankshaft and is located at outside the working chamber, described in the axial direction of the pin wheel housing Planetary gear is located on the outside of the rigid disk;
The shell of the driving motor is fixedly connected with the rigid disk, between the shell and the rigid disk have gap and The planetary gear is located in the gap, and the output shaft of the driving motor is equipped with the first gear teeth group, first gear teeth Group is engaged with second gear teeth of the planetary gear group.
13. decelerating motor according to claim 12, it is characterised in that:
The flank of tooth of first gear teeth group and the flank of tooth of second gear teeth group have for convex arc surface.
14. decelerating motor according to claim 12, it is characterised in that:
The output shaft of the driving motor is gear shaft, and first gear teeth group machine-shaping is on the output shaft.
15. 2 to 14 described in any item decelerating motors according to claim 1, it is characterised in that:
It is fixedly connected between the rigid disk and the shell of the driving motor by fixed frame.
16. decelerating motor according to claim 15, it is characterised in that:
The fixed frame is annular in shape, and the axial first end of the fixed frame is sleeved on outside the rigid disk, the axis of the fixed frame It is sleeved on to second end outside the shell of the driving motor.
17. decelerating motor, including driving motor and retarder, the retarder include pin wheel housing, rigid disk, planet carrier, crankshaft, Planetary gear, needle roller, needle bearing and Cycloidal Wheel;
Have in the middle part of the pin wheel housing through axial working chamber, the rigid disk is rotatably installed on institute by first bearing The axial first end of working chamber is stated, the planet carrier is rotatably installed on axial the second of the working chamber by second bearing End, for the Cycloidal Wheel between the rigid disk and the planet carrier, multiple needle rollers are engaged on the outer of the Cycloidal Wheel Between the flank of tooth and the inner toothed surface of the pin wheel housing;
The crankshaft is rotatably connected between the rigid disk and the planet carrier, and the needle bearing is sleeved on the song On the eccentric part of axis, the eccentric part and the needle bearing are located in the bearing hole of the Cycloidal Wheel;
It is characterized by:
The planetary gear is mounted on the crankshaft and is located at outside the working chamber, described in the axial direction of the pin wheel housing Planetary gear is located on the outside of the rigid disk;
The shell of the driving motor is fixedly connected with the pin wheel housing, between the shell and the rigid disk have gap and The planetary gear is located in the gap, and the output shaft of the driving motor is equipped with the first gear teeth group, first gear teeth Group is engaged with second gear teeth of the planetary gear group.
18. decelerating motor according to claim 17, it is characterised in that:
The flank of tooth of first gear teeth group and the flank of tooth of second gear teeth group have for convex arc surface.
19. decelerating motor according to claim 17, it is characterised in that:
The output shaft of the driving motor is gear shaft, and first gear teeth group machine-shaping is on the output shaft.
20. 7 to 19 described in any item decelerating motors according to claim 1, it is characterised in that:
It is fixedly connected between the pin wheel housing and the shell of the driving motor by fixed frame.
21. decelerating motor according to claim 20, it is characterised in that:
The fixed frame is annular in shape, and the axial first end of the fixed frame is sleeved on outside the pin wheel housing, the axis of the fixed frame It is sleeved on to second end outside the shell of the driving motor.
22. robot, including the first component and relative to the second component of first component rotation, it is characterised in that:
The robot further includes such as the described in any item decelerating motors of the claims 4 to 21, the decelerating motor connection Between the first component and the second component.
CN201811187936.4A 2018-10-12 2018-10-12 Retarder, decelerating motor and robot Pending CN109083984A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201811187936.4A CN109083984A (en) 2018-10-12 2018-10-12 Retarder, decelerating motor and robot
JP2021514997A JP7213958B2 (en) 2018-10-12 2018-12-21 Reduction gears, reduction motors and robots
PCT/CN2018/122845 WO2020073496A1 (en) 2018-10-12 2018-12-21 Speed reducer, geared motor, and robot

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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CN (1) CN109083984A (en)
WO (1) WO2020073496A1 (en)

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