CN106545621B - Actuator - Google Patents

Abstract

A kind of actuator can utilize common two output links of motor drive, and can minimize.The rotation of motor (2) is transferred to the first output block (3A) and the second output block (3B) via driving force transfer mechanism (4) by the actuator (1).Drive force transfer mechanism (4) that there is planetary gear mechanism (50A), the rotation that the planetary gear mechanism (50A) is switched to driving gear (521) is transferred to the first state of the first gear (531) engaged with the first output block (3A) and the rotation of driving gear (521) is transferred to the second state of the second gear (541) engaged with the second output block (3B).The switching of first state and the second state is carried out according to the size of the first output block (3A) and the rotary load of the second output block (3B).

Description

Actuator

Technical field

The present invention relates to a kind of actuators that two output blocks are driven by common motor.

Background technique

In the actuator of driving various parts, there is the actuator that two output blocks are driven using common motor. In patent document 1, the filter driving device of the filter of driving air-conditioning device is disclosed.The filter of patent document 1 drives Dynamic device has the common actuator (driving device) of two filters of driving.The driving device of patent document 1 passes through drive Dynamic motor and the output gear of gear set rotated are engaged with the rack gear for being set to filter.

Existing technical literature

Patent document

Patent document 1: Japanese Unexamined Patent Publication 2006-71135 bulletin

The filter driving device of patent document 1 makes two filter movements by the driving force of motor simultaneously.Therefore, it needs Want biggish driving force.If the driving force of motor to be alternately transferred to two output blocks to driven, and drive simultaneously Dynamic situation is smaller compared to the driving force of motor.However, using two output blocks of motor driven, Structure is complicated changes for the driving force transfer mechanism for being present between motor and output block.Also, output is transferred in order to expand The torque of component drives force transfer mechanism enlarged if expanding reduction ratio.Accordingly, it is difficult to minimize actuator.

Summary of the invention

In view of problem above, project of the invention is the actuator of two output blocks will to be driven small by common motor Type.

In order to solve the above problems, actuator of the invention includes the first output block；Second output block；Motor；With And driving force transfer mechanism, the driving force transfer mechanism make first output block and institute based on the rotation of the motor The rotation of the second output block is stated, the driving force transfer mechanism includes driving gear, and the driving gear obtains the institute that transmitting comes State the rotation of motor；First gear, the first gear revolve first output block based on the rotation of the driving gear Turn；And second gear, the second gear rotate second output block based on the rotation of the driving gear, are cut The rotation for shifting to the driving gear is transferred to the first state of the first gear and the rotation of the driving gear is transferred to Second state of the second gear.

In accordance with the invention it is possible to drive the first output block and the second output block by common motor.Also, it drives Force transfer mechanism can be transferred to the first state of the first gear to the rotation of driving gear and the rotation of driving gear passes The second state for being handed to the second gear switches over.In this way, the transmitting destination of the driving force of motor is allowed hand over, Therefore it is capable of forming the structure for driving two output blocks by common motor, and motor need not be made enlarged.Therefore, energy It is enough that the actuator of two output blocks will be driven to minimize.

In the present invention, it is preferred to which the driving gear, the first gear and the second gear coaxially configure.Such as This one, due to can be by directly drive two output sections with the first gear that coaxially configures of driving gear and second gear Part, therefore can be by driving force transfer mechanism miniaturization, so as to minimize actuator.

In the present invention, it is preferred to which the driving force transfer mechanism has planetary gear mechanism, the planetary gear mechanism tool Have sun gear, the planetary gear engaged with the sun gear, keep the planetary gear planet carrier and with the row The internal-gear of star gear engagement, the driving gear rotates integrally with the sun gear, the first gear and described the One side of two gears rotates integrally with the planet carrier, another party of the first gear and the second gear and the internal tooth Gear rotates integrally.In this way, due to can be by being likely to become the first gear of the output element of planetary gear mechanism Two output blocks are directly driven with second gear, therefore can be by driving force transfer mechanism miniaturization.Also, pass through planet tooth It is big to take turns the reduction ratio that mechanism generates, therefore need not be by motor and driving force transfer mechanism enlargement, it will be able to obtain big turn Square.

In the present invention, it is preferred to which the driving force transfer mechanism includes driving side rotary body, the driving side rotary body tool There are the sliding tooth wheel and the sun gear；First outlet side rotary body, the first outlet side rotary body have described First gear and the planet carrier；And the second outlet side rotary body, the second outlet side rotary body have described second Gear and the internal-gear are formed in the outer diameter ratio of the second gear of the outer peripheral edge of the second outlet side rotary body It is formed in the bottom of the tooth diameter of the driving gear of the outer peripheral edge of the driving side rotary body and is formed in first outlet side The bottom of the tooth diameter of the first gear of the outer peripheral edge of rotary body is small.In this way, can be realized driving side rotary body or first The slimming of outlet side rotary body, and driving gear or first gear meshed gears between can ensure gear it Between engaging width.Therefore, it can be realized the slimming of driving force transfer mechanism.

In the present invention, it is preferred to which the outer diameter of the first gear is smaller than the bottom of the tooth diameter of the driving gear.In this way, three A rotary body is able to realize slimming, and between the gear meshed gears for being set to the outer peripheral edge of each rotary body It can ensure the engaging width between gear.Therefore, it can be realized the slimming of driving force transfer mechanism.Also, due to can Make to drive the diameter of gear bigger than the diameter of first gear and second gear, therefore reduction ratio can be expanded.

In the present invention, it is preferred to include fulcrum, the fulcrum passes through the driving side rotary body, first outlet side The rotation center of rotary body and the second outlet side rotary body；And shell, the shell support the end of the fulcrum, The driving side rotary body, the first outlet side rotary body and the second outlet side rotary body are according to second output Sidespin swivel, the first outlet side rotary body, the driving side rotary body sequence be installed on the fulcrum.In this way, By the way that fulcrum is installed on shell, and according to the second outlet side rotary body, the first outlet side rotary body, driving side rotary body Sequence falls into three rotary bodies in shell, can assemble planetary gear mechanism.Therefore, the group dressing of force transfer mechanism is driven Easily.

In the present invention, it is preferred to the rotary load of the driving force transfer mechanism based on first output block with it is described The size of the rotary load of second output block is switched to the first state and second state.In this way, pioneer Any one in two output blocks is moved, as a result, if the size of rotary load reverses, it can be by the transmitting of driving force Destination switches to another party, drives the output block of another party.It therefore, can be defeated by common motor driven two Component out.

It is passed in the present invention, it is preferred to which the driving force transfer mechanism slows down the rotation of the motor according to the first reduction ratio It is handed to first output block, the rotation deceleration of the motor is transferred to second output section according to the second reduction ratio Part, first reduction ratio are identical as second reduction ratio.In this way, can be with identical the first output section of torque actuated Part and the second output block.

Invention effect

In accordance with the invention it is possible to drive the first output block and the second output block by common motor.Also, it drives Force transfer mechanism is transferred to the rotation of first state and driving gear that the rotation of driving gear is transferred to the first gear Second state of the second gear switches over.In this way, due to the transmitting destination for the driving force for allowing hand over motor, Therefore it is capable of forming the structure for driving two output blocks by common motor, and motor need not be made enlarged.Therefore, energy It is enough that the actuator of two output blocks will be driven to minimize.

Detailed description of the invention

Fig. 1 is the perspective view of the filter driving device with application actuator of the invention.

Fig. 2 is the exploded perspective view using actuator of the invention.

Fig. 3 is plan view and the partial perspective view for indicating the state for dismantling second shell from the actuator of Fig. 2.

Fig. 4 is the differential gear train observed from second shell side and the first output block and the second output block Exploded perspective view.

Fig. 5 is the differential gear train observed from first shell side and the first output block and the second output block point Solve perspective view.

Fig. 6 is the cross-sectional view of differential gear train.

Fig. 7 is the exploded perspective view of first shell and swing mechanism.

Fig. 8 is the sectional stereogram for indicating the state for positioning connecting rod driving gear using cap.

Fig. 9 is the sectional stereogram of output block and bearing portion.

Figure 10 is the exploded perspective for indicating for the output block of swing mechanism to be installed on the state of the bearing portion of first shell Figure.

Figure 11 is the cross-sectional view of the differential gear train of variation.

Symbol description

1 ... actuator

1A ... pendulous device

2 ... motors

The first output block of 3A ...

The second output block of 3B ...

4 ... driving force transfer mechanisms

7 ... swing mechanisms

10 ... shells

11 ... first shells

12 ... second shells

13 ... recess portions

14A ... bearing portion

14B ... bearing portion

15 ... recess portions

16 ... cap mounting portions

17 ... bearing portions

18 ... bearing portions

20 ... portion of terminal

21 ... terminal pins

22 ... pinion gears

30 ... wiring taking-up portions

31 ... recess portions

32 ... terminal pins

33 ... flat cables

34 ... wall portions

35 ... guiding walls

40 ... train of reduction gears

41 ... first gears

42 ... second gears

43 ... third gears

50 ... differential gear trains

50A ... planetary gear mechanism

51 ... fulcrums

52 ... driving side rotary bodies

53 ... first outlet side rotary bodies

54 ... second outlet side rotary bodies

55 ... planetary gears

60A ... axis body

60B ... axis body

61A ... first is by driving gear

61B ... second is by driving gear

62 ... recess portions

63 ... protrusions

71 ... connecting rods drive gear

72 ... connecting rod driven gears

73 ... caps

74 ... connecting rods

75 ... output blocks

76 ... output gears

100 ... filter driving devices

111 ... end plates

112 ... side plates

113 ... protrusions

114,115,116 ... recess portion

121 ... end plates

122 ... side plates

123 ... hooks

124 ... recess portions

161 ... annular convex

162 ... recess portions

163 ... positioning regions

171 ... cylindrical portions

173 ... limiting units

174 ... one end

175 ... the other ends

200A ... filter drive shaft

200B ... filter drive shaft

300 ... tilting member drive shafts

411 ... large diameter gear portions

412 ... small-diameter gear portions

413 ... gear shafts

421 ... large diameter gear portions

422 ... small-diameter gear portions

423 ... gear shafts

431 ... large diameter gear portions

432 ... small-diameter gear portions

433 ... gear shafts

521 ... driving gears

522 ... large-diameter portions

523 ... small diameter portions

524 ... sun gears

525 ... axis holes

531 ... first gears

532 ... cylindrical portions

533 ... planet carriers

534 ... end plates

535 ... fulcrums

536 ... wall portions

537 ... protrusions

538 ... circular opens

541 ... second gears

542 ... cylindrical portions

543 ... end plates

544 ... internal-gears

545 ... axis holes

546,547 ... recess portions

711 ... axis bodies

712 ... circular protrusions

721 ... axis bodies

722 ... teeth portion

731 ... annulus

732 ... peripheral walls

733 ... boss portions

734 ... notch sections

735 ... openings

751 ... the first components

752 ... second components

753 ... plectane portions

754 ... positioning protrusions

755 ... axis bodies

L, L1, L2, L3 ... rotation axis

The outer diameter of D1 ... second gear

The bottom of the tooth diameter of D2 ... first gear and driving gear

The outer diameter of D3 ... first gear

The bottom of the tooth diameter of D4 ... driving gear

Specific embodiment

Hereinafter, being illustrated referring to attached drawing to the embodiment of application actuator of the invention.

(overall structure)

Fig. 1 is the perspective view of the filter driving device with application actuator of the invention.The actuator 1 of the method is used In filter driving device 100.Filter driving device 100 includes actuator 1；The first filter driven by actuator 1 is driven Moving axis 200A and the second filter drive shaft 200B；And tilting member drive shaft 300.Actuator 1 drives first filter Moving axis 200A and the second filter drive shaft 200B are alternately rotated, and make tilting member drive shaft 300 in defined angle model Interior round-trip rotation (swing) is enclosed, so that the cleaning component (illustration omitted) for being installed on tilting member drive shaft 300 be made to swing.It is based on The rotation of first filter drive shaft 200A and the second filter drive shaft 200B, are assembled in air interchanger, air-conditioning device etc. Air entry, the filter (illustration omitted) of air outlet are mobile towards the direction arrow A1, A2 shown in FIG. 1.Pass through the cleaning of swing Component and mobile filter contacts, the foreign matter for being attached to filter are removed.

In the present specification, this three axis of XYZ is mutually orthogonal direction, and the side of X-direction is indicated with -X direction, another Side indicates that the side of Y direction indicates that the other side is indicated with -Y direction with +Y direction with -X direction, the side use+Z of Z-direction Direction indicates that the other side is indicated with -Z direction.Z-direction is the motor 2 along the driving source as actuator 1 (referring to Fig. 2) Rotation axis L direction.Rotation axis L1, L2 of first filter drive shaft 200A and the second filter drive shaft 200B with And the rotation axis L3 of tilting member drive shaft 300 is parallel with the rotation axis L of motor 2.+Z direction is first filter driving Axis 200A, the second filter drive shaft 200B and tilting member drive shaft 300 are from 1 direction outstanding (outlet side) of actuator ,-Z Direction is the side opposite with outlet side.

Fig. 2 is the exploded perspective view using actuator 1 of the invention.Also, Fig. 3 (a) is the actuator 1 indicated from Fig. 2 By the plan view of the state of second shell disassembly, Fig. 3 (b) is the partial perspective view for amplifying the region B of Fig. 3 (a).Such as Fig. 2 institute Show, actuator 1 includes shell 10；It is contained in the motor 2 of shell 10；First that shell 10 is supported in a manner of revolvable is defeated Component 3A and the second output block 3B out；Rotation based on motor 2 revolves the first output block 3A and the second output block 3B The driving force transfer mechanism 4 turned；And the swing mechanism 7 that the rotation based on motor 2 swings tilting member drive shaft 300.It drives Power is by driving the train of reduction gears 40 of force transfer mechanism 4 to carry out from motor 2 to the transmitting of swing mechanism 7.

(shell)

Shell 10, which includes, to be configured at for first filter drive shaft 200A, the second filter drive shaft 200B and swing The first shell 11 for the side (that is, +Z direction side) that component drive shaft 300 is arranged；And-Z is configured at relative to first shell 11 The second shell 12 of direction side.Shell 10 is whole in substantially rectangular parallelepiped relatively thin in the Z-axis direction.

First shell 11 include for motor 2, the first output block 3A, the second output block 3B, driving force transfer mechanism 4, The end plate 111 that swing mechanism 7 assembles；And the side plate 112 erected from the outer peripheral edge of end plate 111 towards -Z direction.In The region of the +Y direction side of end plate 111 is formed with circular recess portion 13.Motor 2 is assembled in recess portion 13.Also, in end plate 111 by -Y direction side region and be formed with by the region of -X direction side by the first output block 3A and the second output section Part 3B bearing is bearing portion 14A, the 14B that can be rotated.Bearing portion 14A, 14B are the axis holes in penetrating end plates portion 111, and in the side Y Configuration side by side upwards.First output block 3A can be rotated by bearing portion 14A bearing around rotation axis L1.Also, second is defeated Component 3B can be rotated by bearing portion 14B bearing around rotation axis L2 out.Second output block 3B and bearing portion 14B are opposite It is located at +Y direction side in the first output block 3A and bearing portion 14A.Also, end plate 111 relative to bearing portion 14A, 14B is formed with recess portion 15 by the region of +X direction side, is assembled with swing mechanism 7 in recess portion 15.

Second shell 12 includes and the end plate 111 of first shell 11 opposite end plate 121 in the Z-axis direction；And The side plate 122 erected from the outer peripheral edge of end plate 121 towards +Z direction.In many places shape of the side plate 112 of first shell 11 At there is protrusion 113.On the other hand, in the position corresponding with the protrusion 113 of first shell 11 of the side plate 122 of second shell 12 It is formed with hook 123.If hook 123 is made to engage to combine first shell 11 with second shell 12 with protrusion 113, can constitute Shell 10.

(wiring taking-up portion)

As shown in Figure 2 and Figure 3, first shell 11 has wiring taking-up portion 30, and wiring taking-up portion 30 is formed at side The edge of the +Y direction side in plate portion 112.Wiring taking-up portion 30 has the recess portion 31 being open towards -Z direction, is configured in recess portion 31 Multiple terminal pins 32.One end of multiple terminal pins 32 is prominent towards -Z direction in recess portion 31.As shown in Figure 1, making first shell In the state that body 11 is combined with second shell 12, recess portion 31 is exposed to the outside of shell 10.Therefore, it can will power to motor 2 Conducting wire etc. is connect with terminal pins 32 outstanding into recess portion 31.

As shown in Fig. 2, the outer peripheral surface in motor 2 is provided with portion of terminal 20.Portion of terminal 20 has multiple terminal pins 21.Such as figure Shown in 3 (b), in first shell 11, the portion of terminal 20 of motor 2 faces wiring taking-up portion 30, takes out from portion of terminal 20 to wiring Portion 30 passes around flat cable 33.The terminal pins 21 of 2 side of motor and the terminal pins 32 in wiring taking-up portion 30 via flat cable 33 and Connection, in addition, the diagram of flat cable 33 is omitted in Fig. 3 (a).

As shown in Fig. 3 (b), wiring taking-up portion 30 includes the wall portion 34 positioned at the -Y direction side of recess portion 31；And from wall portion The end of 34 +X direction side is towards 2 side of motor guiding wall 35 outstanding.The outer peripheral surface towards 2 side of motor of guiding wall 35 is in circle Arcuation.It is in the shape protruded towards +X direction towards the flat cable 33 in wiring taking-up portion 30 from the portion of terminal 20 of motor 2 Mode passes around into curved shape, and is guided in a manner of the periphery face contact of the arc-shaped with guiding wall 35.That is, guiding wall 35 part contacted with flat cable 33 is that flat cable 33 damages the small shape (outer peripheral surface of arc-shaped) of possibility.

(driving force transfer mechanism)

As shown in Fig. 2, the output shaft in motor 2 is equipped with pinion gear 22.Driving force transfer mechanism 4 is included by the first tooth The train of reduction gears 40 that wheel 41, second gear 42 and third gear 43 are constituted；And it obtains and is transmitted via train of reduction gears 40 The differential gear train 50 of the rotation of the motor 2 come.First gear 41 is the input gear for driving force transfer mechanism 4, and is included The large diameter gear portion 411 engaged with pinion gear 22；And the small-diameter gear portion 412 of the -Z direction side positioned at large diameter gear portion 411. Second gear 42 includes the large diameter gear portion 421 engaged with the small-diameter gear portion 412 of first gear 41；And it is located at major diameter tooth The small-diameter gear portion 422 of the -Z direction side of wheel portion 421.Third gear 43 is included to be nibbled with the small-diameter gear portion 422 of second gear 42 The large diameter gear portion 431 of conjunction；And the small-diameter gear portion 432 of the +Z direction side positioned at large diameter gear portion 431.Across first gear The recess portion that the end of the +Z direction of the gear shaft 413 of 41 rotation center is arranged at the end face of the -Z direction of motor 2 (saves sketch map Show) bearing.Also, across the end of second gear 42, the +Z direction of the gear shaft 423,433 of the rotation center of third gear 43 The recess portion 114,115 for being arranged at the end plate 111 of first shell 11 supports.On the other hand ,-the Z of gear shaft 413,423,433 The end in direction is arranged at recess portion (illustration omitted) bearing of the end plate 121 of second shell 12.

There are two output gears for the tool of third gear 43 of the gear of final stage as train of reduction gears 40.That is, third gear 43 large diameter gear portion 431 is the output gear that the rotation of motor 2 is transferred to differential gear train 50.On the other hand, third The small-diameter gear portion 432 of gear 43 is the output gear that the rotation of motor 2 is transferred to swing mechanism 7.In addition, as by motor 2 rotation is transferred to the output gear of swing mechanism 7, and diameter tooth identical with the diameter in large diameter gear portion 431 also can be used Wheel, the diameter gear bigger than the diameter in large diameter gear portion 431.In the present embodiment, by making the number of teeth in small-diameter gear portion 432 The number of teeth than large diameter gear portion 431 is few, is capable of increasing the reduction ratio when rotation of motor 2 to be transferred to swing mechanism 7.

Fig. 4 be the differential gear train 50 observed from 12 side of second shell (-Z direction side) and the first output block 3A and The exploded perspective view of second output block 3B.Also, Fig. 5 is the differential gearing observed from 11 side of first shell (+Z direction side) The exploded perspective view of mechanism 50 and the first output block 3A and the second output block 3B.First output block 3A is included by first The bearing portion 14A bearing of shell 11 is the axis body 60A that can be rotated；And be set to the end of the -Z direction side of axis body 60A First by driving gear 61A.Also, it is that can revolve that the second output block 3B, which is included by the bearing portion 14B bearing of first shell 11, The axis body 60B turned；And be set to the -Z direction side of axis body 60B end second by driving gear 61B.First by sliding tooth It takes turns 61A and the second diameter by the diameter of driving gear 61B respectively than axis body 60A, 60B is big.Also, axis body 60A, 60B distinguish With the recess portion 62 being open in the end face of +Z direction, multiple protrusions 63 are circumferentially arranged in the inner peripheral surface of recess portion 62.It will cause When dynamic device 1 is used for filter driving device 100, recess portion 62 is used as first filter drive shaft 200A and the second filter Drive shaft 200B connects into the interconnecting piece that cannot be rotated around rotation axis L1, L2.

Differential gear train 50 includes rotation axis L1, L2 with the first output block 3A and the second output block 3B The fulcrum 51 extended parallel to；Driving side rotary body 52, the first outlet side rotary body 53 by the bearing of fulcrum 51 for that can rotate And the second outlet side rotary body 54；And three planetary gears 55 (referring to Fig. 5).Planetary gear 55 is held in aftermentioned row First outlet side rotary body 53 of carrier 533.When differential gear train 50 is assembled in first shell 11, by the end of fulcrum 51 Portion's indentation is set to the recess portion 116 of the end plate 111 of first shell 11, successively from the root side (11 side of first shell) of fulcrum 51 It is assembled according to the sequence of the second outlet side rotary body 54, the first outlet side rotary body 53 and driving side rotary body 52.If Combine first shell 11 with second shell 12, then the end of another party of fulcrum 51 is set in the position opposite with recess portion 116 It is placed in recess portion 124 (referring to Fig. 6) bearing of the end plate 121 of second shell 12.

As shown in figure 5, driving side rotary body 52 has large-diameter portion 522 and small diameter portion 523, wherein the large-diameter portion 522 exists Outer peripheral edge is formed with driving gear 521, the third gear of the driving gear 521 and the gear of the final stage as train of reduction gears 40 43 large diameter gear portion 431 is engaged, and the small diameter portion 523 is prominent from the center of large-diameter portion 522 towards +Z direction.In small diameter portion 523 outer peripheral surface is formed with sun gear 524.As described later, sun gear 524 and it is held in the first outlet side rotary body 53 Planetary gear 55 engage.The axis hole 525 at the center of large-diameter portion 522 and small diameter portion 523, driving side are threaded through by fulcrum 51 Rotary body 52 can be rotated by the bearing of fulcrum 51.

First outlet side rotary body 53 has cylindrical portion 532 and planet carrier 533, wherein the outer peripheral surface of the cylindrical portion 532 It is formed with the first first gear 531 engaged by driving gear 61A with the first output block 3A, the planet carrier 533 and circle Canister portion 532 is integrally formed.Planet carrier 533 includes the end plate 534 of the end of the -Z direction of closed circular canister portion 532 (referring to figure 4)；In three fulcrums 535 that the inner circumferential side of cylindrical portion 532 circumferentially, equally spaced configures；And adjacent fulcrum in the circumferential Between 535 three at the wall portion 536 that extends in circular arc.Fulcrum 535 and wall portion 536 are prominent from end plate 534 towards +Z direction Out.Protrusion 537 is formed in the end face of the +Z direction of wall portion 536.Planetary gear 55 is installed respectively in the state of can rotate Yu Sangen fulcrum 535.

First outlet side rotary body 53 has the circular open 538 (referring to Fig. 4) in the center for being formed in end plate 534.Make It is chimeric for the cylindric base end part of the part for not forming sun gear 524 in the small diameter portion 523 of driving side rotary body 52 In circular open 538.First outlet side rotary body 53 is assembled in fulcrum 51 by the small diameter portion 523 of driving side rotary body 52.

Second outlet side rotary body 54 has end plate 543 and cylindrical portion 542, wherein the end plate 543 is in outer peripheral edge It is formed with the second second gear 541 engaged by driving gear 61B with the second output block 3B, the cylindrical portion 542 is from end The outer peripheral edge in plate portion 543 is erected towards +Z direction.It is formed with internal-gear 544 in the inner peripheral surface of cylindrical portion 542 (referring to Fig. 4). It is formed through the axis hole 545 (referring to 5) in end plate 543 by fulcrum 51, the second outlet side rotary body 54 is supported by fulcrum 51 For that can rotate.

First outlet side rotary body 53 is formed between the inner peripheral surface and planetary gear 55 and wall portion 536 of cylindrical portion 532 There is cricoid gap (referring to Fig. 4).After second outlet side rotary body 54 is assembled in fulcrum 51, by the first outlet side rotary body 53 It is assembled in the second outlet side rotary body 54.That is, the cylindrical portion 542 of the second outlet side rotary body 54 is inserted into cylindrical portion 532 The gap of circumferential surface and planetary gear 55 and wall portion 536.Be formed in as a result, the internal-gear 544 of the inner peripheral surface of cylindrical portion 542 with Three planetary gears 55 engage.The end of the fulcrum 535 of planetary gear 55 is formed on the end plate of the second outlet side rotary body 54 The recess portion 546 in portion 543 supports.Also, it is chimeric with the recess portion 547 of end plate 543 is formed in from the protrusion 53 outstanding of wall portion 536. If driving side rotary body 52 is further assembled in fulcrum 51, sun gear after group installs the first outlet side rotary body 53 524 are inserted into the inner circumferential side of three planetary gears 55, and sun gear 524 is engaged with planetary gear 55.

Differential gear train 50 has planetary gear mechanism 50A, and the planetary gear mechanism 50A is by being formed in driving sidespin The sun gear 524 of swivel 52 is formed in the planet carrier 533 of the first outlet side rotary body 53, is held in three of planet carrier 533 Planetary gear 55 and the internal-gear 544 for being formed in the second outlet side rotary body 54 are constituted.Here, driving side rotary body 52 Driving gear 521 with the rotation for obtaining the motor 2 come via the transmitting of train of reduction gears 40, therefore it is set to driving side rotation The sun gear 524 of body 52 plays a role as the input element of planetary gear mechanism 50A.

On the other hand, the first outlet side rotary body 53 with planet carrier 533 has first with the first output block 3A The first gear 531 engaged by driving gear 61A, the second outlet side rotary body 54 with internal-gear 544 have and second The second gear 541 that the second of output block 3B is engaged by driving gear 61B.Moreover, the output of the first output block 3A and second Component 3B can rotate.Therefore, rotation is transferred to the first output block 3A and the second output section by planetary gear mechanism 50A The component of the side of rotary load greatly in part 3B works as fixed factors, and rotation is transferred to the small side of rotary load Component as output element work.That is, the planetary gear mechanism 50A of present embodiment is based on the first output block 3A and the The size of the rotary load of two output block 3B is switched to the first state for rotating the first output block 3A and makes second defeated Second state of component 3B rotation out.

That is, first state is state of the first outlet side rotary body 53 as the output element of planetary gear mechanism 50A, and Be drive the rotation of gear 521 be transferred to first gear 531, the first output block 3A by engaged with first gear 531 the One state rotated by driving gear 61A.In a first state, the second outlet side rotary body 54 becomes planetary gear mechanism The fixed factors of 50A.Also, the second state is the output element that the second outlet side rotary body 54 becomes planetary gear mechanism 50A State, and be drive gear 521 rotation be transferred to second gear 541, the second output block 3B by with second gear 541 Second state rotated by driving gear 61B of engagement.In the second state, the first outlet side rotary body 53 becomes planet tooth Take turns the fixed factors of mechanism 50A.

Fig. 6 is the cross-sectional view of differential gear train 50.As shown in the drawing, if it is the first outlet side rotary body 53, second is defeated Sidespin swivel 54 and driving side rotary body 52 are assembled into fulcrum 51 out, then as the driving gear 521 of input gear and conduct The first gear 531 and second gear 541 of two output gears constitute the outer peripheral surface of differential gear train 50.That is, differential gearing The size of the Z-direction of mechanism 50 is determined by the thickness of these three gears.In this mode, the outer diameter D 1 of second gear 541 compares The bottom of the tooth diameter D2 of other two gears (first gear 531, driving gear 521) is small.Therefore, engaged with first gear 531 One has thickness of the bulging to the peripheral side of second gear 541 by driving gear 61A, but first by driving gear 61A and the Two gears 541 are not interfered.

Since driving force transfer mechanism 4 has train of reduction gears 40 and planetary gear mechanism 50A, subtracted with defined The rotation of motor 2 is slowed down and is transferred to the first output block 3A or the second output block 3B by speed ratio.If by motor 2 and first Reduction ratio between output block 3A as the first reduction ratio, using the reduction ratio between motor 2 and the second output block 3B as Second reduction ratio, then the first reduction ratio and the second reduction ratio are almost equal in the present embodiment.It therefore, can be with almost equal Torque actuated the first output block 3A and the second output block 3B.

(swing mechanism)

Fig. 7 is the exploded perspective view of first shell 11 and swing mechanism 7.The actuator 1 of present embodiment, which has, to be used for The swing mechanism 7 for swinging tilting member drive shaft 300 in defined angular range, and work as pendulous device 1A. Swing mechanism 7 includes connecting rod driving gear 71；Connecting rod driven gear 72；The cap 73 of positioning linkage rod driving gear 71；Connect connecting rod Drive the connecting rod 74 of gear 71 and connecting rod driven gear 72；And obtain the rotation (swing) for the connecting rod driven gear 72 that transmitting comes Output block 75.Output block 75 includes the first component for being formed with the output gear 76 engaged with connecting rod driven gear 72 751；And the second component 752 rotated integrally with the first component 751.The first component 751 is included in the side+Z of output gear 76 Be formed as the diameter plectane portion 753 bigger than the diameter of output gear 76 to side；And it is prominent from plectane portion 753 towards radial outside Positioning protrusion 754.The axis body 755 extended along Z-direction is installed at the center of output gear 76.

As described above, the end plate 111 in first shell 11 is assembled with the first output block 3A, the second output block 3B And the +X direction side in the region of differential gear train 50 is formed with recess portion 15.Cap mounting portion 16 and bearing are formed in recess portion 15 Portion 17,18.Bearing portion 18 is located at the -Y direction side of cap mounting portion 16, and bearing portion 17 is located at the -X direction side of bearing portion 18.In cap Mounting portion 16 is equipped with connecting rod driving gear 71 and cap 73.Bearing portion 17 can rotate the base portion bearing of output block 75. Also, bearing portion 18 supports the axis body 721 for the rotation center for being set to connecting rod driven gear 72.

Cap mounting portion 16 includes annular convex 161；It is set to the upper of the protruding portion for being formed in the center of annular convex 161 The recess portion 162 of end face；And be formed in along annular convex 161 inner peripheral three at positioning region 163.At 162 groups of recess portion The end of axis body 711 (referring to Fig. 8) equipped with the rotation center for being set to connecting rod driving gear 71.Positioning region 163 is and ring-type Protrusion 161 compares, towards the larger-size overshooting shape of protrusion of -Z direction.Positioning region 163 is with the center of recess portion 162 (that is, connecting rod Drive gear 71 rotation center) on the basis of configure circumferentially equiangularly spacedly.

Bearing portion 17 has the cylindrical portion 171 erected from end plate 111 towards -Z direction.In the inner circumferential side of cylindrical portion 171 It is formed with the axis hole in penetrating end plates portion 111.Annular convex 161 is connected in the outer peripheral surface of cylindrical portion 171.As shown in fig. 7, bearing Portion 17 has the limiting unit 173 of the end face for the -Z direction for being formed in cylindrical portion 171.It is outstanding that limiting unit 173 is directed towards -Z direction Protruding portion.Limiting unit 173 is formed in cylindrical portion 171 in defined angular range corresponding with the hunting range of output gear 76 End face.Stage portion is formed in circumferential one end 174 of limiting unit 173 and the other end 175 of circumferential direction.

Fig. 8 is the sectional stereogram (position C1-C1 of Fig. 3 for indicating the state for positioning connecting rod driving gear 71 using cap 73 The sectional stereogram set).Connecting rod driving gear 71 is assembled in the bearing of axis body 711 of recess portion 162 as that can rotate.It is driven in connecting rod The center of moving gear 71 is formed with towards -Z direction circular protrusions 712 outstanding.Cap 73 is included from opposite with end plate 111 The annulus 731 that side (-Z direction side) is abutted with the peripheral part of connecting rod driving gear 71；And from the outer peripheral edge of annulus 731 The peripheral wall 732 extended towards 111 side of end plate.Circular opening 735, connecting rod sliding tooth are formed in the center of annulus 731 The circular protrusions 712 of wheel 71 are embedded in opening 735.Connecting rod driving gear 71 is positioned relative to cap 73 as a result, and axis body 711 upper end is positioned by connecting rod driving gear 71.That is, by the opening 735 for being formed in cap 73 and being formed in cap mounting portion 16 Recess portion 162 constitutes the upper and lower bearing by connecting rod driving gear 71 bearing for that can rotate.

Cap 73 is abutted with the end face of the -Z direction of annular convex 161 in Z axis side by the end face of the +Z direction of peripheral wall 732 Positioning upwards.Moreover, abutted at 3 points with the inner peripheral surface of peripheral wall 732 by the positioning region 163 of cap mounting portion 16, with Z axis side It is positioned on the direction of intersection relative to first shell 11.Cap 73 is located in the position coaxial with recess portion 162 by positioning region 163. As noted previously, as the inner peripheral surface for being formed in the opening 735 of cap 73 works as the bearing of connecting rod driving gear 71, therefore will Cap 73 is coaxially positioned with recess portion 162, and thus connecting rod driving gear 71 is located in the position coaxial with recess portion 162 by cap 73 It sets.Boss portion 733 is formed at the two of the peripheral side of the peripheral wall 732 of cap 73.Cap 73 is screwed on by boss portion 733 End plate 111.

Peripheral wall 732 has the notch section 734 of circumferential a part excision.Notch section 734 faces to be used as train of reduction gears The small-diameter gear portion 432 of the third gear 43 of the gear of 40 final stage.It is driven via notch section 734 and connecting rod in small-diameter gear portion 432 Moving gear 71 engages.Therefore, the rotation of motor 2 is slowed down with defined reduction ratio and is transferred to connecting rod via train of reduction gears 40 and driven Moving gear 71.

Connecting rod driven gear 72 can be rotated by axis body 721 by the bearing of bearing portion 18.One end of connecting rod 74 and connecting rod Driven gear 72 connects, and the other end of connecting rod 74 is connect with the circular protrusions 712 of connecting rod driving gear 71.If connecting rod drives gear 71 rotate a circle, then round trip, connecting rod driven gear 72 carry out past connecting rod 74 in defined angular range in the X-axis direction Return rotation (that is, reciprocating swing).Connecting rod driven gear 72 is formed with teeth portion 722 in circumferential a part of range.

Fig. 9 is the sectional stereogram (sectional stereogram of the position C2-C2 of Fig. 3) of output block 75 and bearing portion 17. Also, Figure 10 is the decomposition for indicating for the output block 75 of swing mechanism 7 to be installed on the state of the bearing portion 17 of first shell 11 Perspective view.As shown in figure 9, the diameter of output block 75 part bigger than the diameter of output gear 76 is energy by the bearing of bearing portion 17 Enough rotations.Due to 17 penetrating end plates portion 111 of bearing portion, the end of the +Z direction side of output block 75 is towards end plate 111 +Z direction side it is prominent.Therefore, above-mentioned tilting member drive shaft 300 (referring to Fig.1) is connect with output block 75, can be incited somebody to action The pendulum motion of output block 75 is transferred to tilting member drive shaft 300.

As shown in Figure 10, if output block 75 is installed on bearing portion 17, the positioning protrusion 754 of output block 75 becomes It is placed in the state of the end face of cylindrical portion 171.Output block 75 can be in circumferential one of positioning protrusion 754 and limiting unit 173 It is swung between the position that end 174 abuts and the position that positioning protrusion 754 is abutted with the circumferential other end 175 of limiting unit 173.It is logical It crosses and assembles output section in a manner of abutting positioning protrusion 754 with circumferential one end 174 or the other end 175 of limiting unit 173 Part 75 can easily provide the rotation position of output gear 76.

The diameter of the connecting rod driven gear 72 of swing mechanism 7 is bigger than the diameter of output gear 76, and swing mechanism 7 passes through Connecting rod driven gear 72 and output gear 76 constitute speed increasing mechanism.It in this mode, is to connect with the swing angle of output gear 76 The mode of the multiple of the swing angle of bar driven gear 72 sets the number of teeth of two gears.Specifically, the pendulum of output gear 76 Dynamic angle is 220 °, and the swing angle of connecting rod driven gear 72 is 110 °.In this way, can be made by using speed increasing mechanism Output gear 76 is swung in the angular range for being more than 180 degree.

(function and effect)

As described above, the actuator 1 of present embodiment can drive the first output block 3A and the using common motor 2 Two output block 3B.Also, the rotation for driving force transfer mechanism 4 to be switched to driving gear 521 is transferred to the first output sidespin The rotation of the first state and driving gear 521 of the first gear 531 of swivel 53 is transferred to the of the second outlet side rotary body 54 Second state of two gears 541.The first output block 3A and the is transferred in this way, which the driving force of motor 2 can be switched Either side in two output block 3B, therefore be capable of forming and drive the first output block 3A and second using common motor 2 The structure of output block 3B, and motor 2 need not be made enlarged.Therefore, actuator 1 can be minimized.Also, due to can Switch the transmitting destination of driving force according to the size of the rotary load of the first output block 3A and the second output block 3B, therefore The side that can first drive rotary load small, as a result, can will be driven if the rotary load of the side first driven becomes larger The transmitting destination of power switches to another party to drive another party.Therefore, the can be alternately driven using common motor 2 One output block 3A and the second output block 3B.

Also, the actuator 1 of the present embodiment planetary gear mechanism 50A big using reduction ratio, and it is formed in first The first of output block 3A is by driving gear 61A and is formed in the second of the second output block 3B by driving gear 61B and shape It is directly engaged at the first gear 531 and second gear 541 of the output element in planetary gear mechanism 50A.Therefore, it can contract The installation space of small driving force transfer mechanism 4, and reduction ratio can be expanded.Therefore, motor 2 and the first output block 3A, Reduction ratio between two output block 3B is big, and can be realized small-sized actuator.

Also, in the driving force transfer mechanism 4 of the method, it is formed in the second gear of the second outlet side rotary body 54 The bottom of the tooth diameter of first gear 531 of 541 outer diameter than being formed in the first outlet side rotary body 53 is small.Therefore, can make and first Gear 531 engage first by driving gear 61A towards the peripheral side bulging of second gear 541.It is accordingly possible to ensure gear it Between engaging width, and can be realized the slimming of the first outlet side rotary body 53.As a result, can be by differential gear turbine Structure 50 is thinned in the Z-axis direction.

Also, the driving force transfer mechanism 4 of present embodiment can by the way that fulcrum 51 is installed on first shell 11, according to The sequence of second outlet side rotary body 54, the first outlet side rotary body 53 and driving side rotary body 52 falls into three rotary bodies Differential gear train 50 is assembled in first shell 11.Therefore, the assembling of force transfer mechanism 4 is driven to be easy.

Also, the deceleration in the driving force transfer mechanism 4 of present embodiment, between motor 2 and the first output block 3A It is more roughly equal than the reduction ratio (the second reduction ratio) between (the first reduction ratio) and motor 2 and the second output block 3B, therefore energy Enough with roughly the same torque actuated the first output block 3A and the second output block 3B.Additionally, it is preferred that the first reduction ratio and the Two reduction ratio are identical.It, can be with identical the first output block of torque actuated if the first reduction ratio is identical as the second reduction ratio 3A and the second output block 3B.

Also, the actuator 1 of present embodiment not only alternately makes first filter drive shaft 200A and the second filter Drive shaft 200B rotation, and acted as the pendulous device 1A that the rotation based on motor 2 swings tilting member drive shaft 300 With.Moreover, in this mode, the connecting rod driving gear 71 for constituting swing mechanism 7 is positioned at first shell 11 by cap 73, lead to It crosses the opening 735 for being formed in cap 73 and the recess portion 162 for being formed in cap mounting portion 16 constitutes the upper and lower axis of connecting rod driving gear 71 It holds.Moreover, cap 73 is abutted with the positioning region 163 of first shell 11 and is positioned.In this way, by being set in first shell 11 The assembly precision of positioning region 163, cap 73 improves, and drives the assembly precision of gear 71 high by the connecting rod that cap 73 positions.Moreover, fixed Position portion 163 is set at equiangularly spaced three on the inside of cap 73, and is abutted at three from inner circumferential side with the peripheral wall 732 of cap 73. In such a configuration, it is not necessary to ensure to be arranged the space of positioning region in the peripheral side of cap 73, therefore can be small by pendulous device 1A Type.Also, the positioning operation of cap 73 is easy.In addition, positioning region 163 is also possible to more than everywhere.

Also, in the swing mechanism of present embodiment 7, the bearing of output block 75 is set for the bearing portion 17 that can be rotated It is placed in first shell 11, bearing portion 17 has the limiting unit 173 of the hunting range of limitation output block 75, and in output block 75 are provided with positioning protrusion 754.Therefore, by abutting limiting unit 173 with positioning protrusion 754, output block 75 can be positioned Swing position.Therefore, it is not necessary to assemble output block 75, output section while the swing position of visual confirmation output block 75 The assembling operation of part 75 is easy.

It is the bearing that can be rotated by the base portion bearing of output block 75 also, in the swing mechanism of present embodiment 7 Portion 17 has the axis hole of the end plate 111 of perforation first shell 11.Therefore, output block 75 can will swing via bearing portion 17 and transport The dynamic tilting member drive shaft 300 for being transferred to the outside for being set to shell 10.

Also, in the swing mechanism of present embodiment 7, the diameter of the diameter of connecting rod driven gear 72 than output gear 76 Greatly, speed increasing mechanism is constituted by connecting rod driven gear 72 and output gear 76.Therefore, output gear 76 can be made more than 180 It is swung in the angular range of degree.

(variation)

Figure 11 is the expanded view of the differential gear train of variation.In the above-described embodiment, in driving gear 521, the In one gear 531 and second gear 541, the outer diameter D 1 of second gear 541 is smaller than the bottom of the tooth diameter D2 of other two gears, driving Gear 521 is identical as the bottom of the tooth diameter D2 and outer diameter of first gear 531, but as shown in figure 11, in the differential gearing of variation In mechanism 50, the outer diameter D 1 of second gear 541 is smaller than the bottom of the tooth diameter D2 of first gear 531, also, the outer diameter of first gear 531 D3 is smaller than driving the bottom of the tooth diameter D4 of gear 521.

In this way, in the differential gear train 50 of variation, for gear (the driving gear of each three rotary bodies 521, first gear 531 and second gear 541), the outer diameter of the side in two adjacent gears is set as in the Z-axis direction It is smaller than the bottom of the tooth diameter of another party.It is set if it is such size, then not only makes engage with first gear 531 first to be driven Gear 61A but also can make and the large diameter gear portion that drives gear 521 to engage towards the peripheral side bulging of second gear 541 431 towards first gear 531 peripheral side bulging.Therefore the slimming of three rotary bodies can be realized respectively, and can be true Protect the engaging width between gear.Therefore, differential gear train 50 can be thinned in the Z-axis direction, so as to make to cause Dynamic device 1 is thinned in the Z-axis direction.Also, since the diameter for driving gear 521 can be made to be greater than first gear 531 and the The diameter of two gears 541, therefore reduction ratio can be expanded.

Also, in this way, which if outer diameter becomes according to driving gear 521, first gear 531, the sequence of second gear 541 It is small, then when by the assembling parts of differential gear train 50 in fulcrum 51, it can be carried out according to from the sequence of the small part of diameter Assembling.Therefore, the assembling of force transfer mechanism is driven to be easy.

(other embodiments)

(1) in the above-described embodiment, make the first output block 3A and the second output section as the rotation based on motor 2 The differential gear train 50 that part 3B alternately rotates, has used the component with planetary gear mechanism 50A, but also can be used Other differential attachments that the rotation of motor 2 is assigned to two output blocks and rotates it.

(2) actuator 1 of aforesaid way is used for filter driving device, rotates filter drive shaft, but actuator 1 It can also be used to drive the device of other drive shafts.

(3) actuator 1 of aforesaid way works as the pendulous device 1A for swinging tilting member drive shaft 300, puts The driving of dynamic component drive shaft 300 is also used as driving other than cleaning component for cleaning the component of filter The pendulous device 1A of tilting member.

Claims (6)

1. a kind of actuator comprising:

First output block；

Second output block；

Motor；And

Drive force transfer mechanism, the driving force transfer mechanism based on the rotation of the motor make first output block and The second output block rotation,

The driving force transfer mechanism includes

Gear is driven, the driving gear obtains the rotation for the motor that transmitting comes；

First gear, the first gear rotate first output block based on the rotation of the driving gear；And

Second gear, the second gear rotate second output block based on the rotation of the driving gear,

The driving gear, the first gear and the second gear coaxially configure,

The driving force transfer mechanism allows hand over to the rotation of the driving gear the first shape for being transferred to the first gear The rotation of state or the driving gear is transferred to the second state of the second gear,

The driving force transfer mechanism have planetary gear mechanism, the planetary gear mechanism have sun gear, with it is described too The planetary gear of positive gear engagement, the internal tooth tooth for keeping the planetary gear planet carrier and being engaged with the planetary gear Wheel,

The driving force transfer mechanism includes

There is outer peripheral edge to be formed with the large-diameter portion of the driving gear, be set to for driving side rotary body, the driving side rotary body From cylindric base end part, the sun gear of the outer peripheral surface of the center small diameter portion outstanding of the large-diameter portion；

First outlet side rotary body, the cylindrical portion that there is the first outlet side rotary body outer peripheral surface to be formed with the first gear And the planetary gear is kept into the revolvable planet carrier in the inside of the cylindrical portion, in the first gear Inside is configured with the planetary gear；And

Second outlet side rotary body, the end plate that there is the second outlet side rotary body outer peripheral edge to be formed with the second gear And from the outer peripheral edge of the end plate to the standing of the inside of the cylindrical portion of the first outlet side rotary body and in inner circumferential Face is formed with the cylindrical portion of the internal-gear,

The planet carrier of the first outlet side rotary body includes the cylindrical portion for closing the first outlet side rotary body Close to driving side rotary body side end end plate, be formed in the end plate center circular open, In The base end part for having the cylindrical shape of the small diameter portion set on the driving side rotary body is fitted into the circular open,

The formation of the second outlet side rotary body has the cylindrical portion of the internal-gear to be configured at outer peripheral surface formation State the inside of the cylindrical portion of first gear, the planet of the internal-gear and the inside for being configured at the first gear Gear engagement,

The outer diameter ratio for being formed in the second gear of the outer peripheral edge of the second outlet side rotary body is formed in described The bottom of the tooth diameter of the first gear of the outer peripheral surface of the cylindrical portion of one outlet side rotary body is small.

2. actuator according to claim 1, which is characterized in that

The outer diameter ratio for being formed in the second gear of the outer peripheral edge of the second outlet side rotary body is formed in the drive The bottom of the tooth diameter of the driving gear of the outer peripheral edge of dynamic sidespin swivel is small.

3. actuator according to claim 2, which is characterized in that

The outer diameter of the first gear is smaller than the bottom of the tooth diameter of the driving gear.

4. actuator according to any one of claim 1 to 3, which is characterized in that

The actuator includes

Fulcrum, the fulcrum pass through the driving side rotary body, the first outlet side rotary body and second outlet side The rotation center of rotary body；And

Shell, the shell support the end of the fulcrum,

The driving side rotary body, the first outlet side rotary body and the second outlet side rotary body are according to described second Outlet side rotary body, the first outlet side rotary body, the driving side rotary body sequence be installed on the fulcrum.

5. actuator according to claim 1, which is characterized in that

The rotation of the rotary load and second output block of the driving force transfer mechanism based on first output block The size of load is switched to the first state and second state.

6. actuator according to claim 1, which is characterized in that

The rotation deceleration of the motor is transferred to first output section according to the first reduction ratio by the driving force transfer mechanism Part,

The rotation deceleration of the motor is transferred to second output block according to the second reduction ratio,

First reduction ratio is identical as second reduction ratio.