CN101568750B

CN101568750B - Planetary gear transmission and vehicle using same

Info

Publication number: CN101568750B
Application number: CN200780047866.6A
Authority: CN
Inventors: 卞东焕
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-10-24
Filing date: 2007-10-24
Publication date: 2012-02-15
Anticipated expiration: 2027-10-24
Also published as: EP2079941A4; WO2008051014A1; EP2079941A1; CN101568750A

Abstract

This invention touches the planetary gear type transmission which is comprised of a pair of single planetary gear rows are combined, and a carrier of one side and a ring gear of the other side are integrated, and a housing of a transmission is formed with the help of two carriers which operate as an input side and an output side, respectively. The transmission work is implemented by controlling the each sun gear which is rotatably installed at the fixed center shaft to engage or disengage with said center shaft or by controlling an integration and a disintegration of two sun gears. This invention gives the planetary gear type transmission a compact size and a light weight because the carrier plays a role for the housing. The center shaft can be engaged and disengaged with the body of the vehicle. One can choose any mode in an acceleration mode, a deceleration mode and a direct connection mode, without using the clutch and under any mode the planetary gear type transmission transmits the driving force in both ways.

Description

Planetary type gear transmission unit and use the vehicle of this planetary type gear transmission unit

Technical field

The present invention relates to not use clutch (clutch) just to can be used for quickening, slowing down and the direct transmission device of the planetary gear type of connection mode.The transmission device of this planetary gear type has two independent epicyclic gear trains; And the gear ring of gear carrier (carrier) on one side and another side combines, and the shell of gear drive (housing) is to utilize two to form as input limit and the gear carrier that operate on the output limit respectively.Therefore, the size of planetary gear type transmission device is little, in light weight.The main body that the central shaft of planetary gear type transmission device (center shaft) is easy to engagement (engage) and unclamps (disengage) wheelchair.

Background technique

Transmission device normally is used to change the unit of the rotating speed of axle.Belt, friction wheel or speed changer have been used at present.When we use speed changer; Utilize the circumscribed gear drive of spur wheel, helical gear and gear transmission chain (geartrain); With the planetary type gear transmission unit interior gear cutting machine that utilizes one of them gear and another gearwheel to link mutually and the small gear that outer surface utilization and sun gear links mutually, just be used usually.

Yet the gear that the transmission device use resembles spur wheel, helical gear and the gear transmission chain has but brought some problems.The shaking force that the wheel between cog of two different gears when meshing with the change rotating speed is produced influences each gear teeth, and the load that concentrates on each gear teeth causes the fracture of these gear teeth perhaps to be ground away.The part engagement of each gear also all causes the generation of noise or vibrations.Consider that along the quantity of the outside formed whole gear teeth of outer tangent plane the engagement of wheel between cog also is rough even this means us.

The transmission device of the planetary gear type of gear cutting machine has littler shaking force than the gear transmission chain of any other type when gear teeth meshing (mesh) and the littler gear teeth are loaded in using.At present it is used to resemble aircraft industry, automobile industry, office equipment process industry, machine tool industry these needs in reduced size and volume and the fields such as industry than light weight; Because it has higher energy transmission efficiency; And more gear teeth meshing will produce few more noise and vibrations, and identical center is all used in input and output.

Wheelchair needs more powerful arm strength to operate two wheels.Wheel and annular throw-out collar are fixed, and the radius of throw-out collar is less than the radius of wheel.The moment of throw-out collar should be greater than the moment of wheel to rotate wheelchair, even this just brings a lot of inconvenience perhaps to make them when wanting to climb little slope, all abandon to people.Some kinds have been proposed through rotating the transmission device that ratio reduces the muscle power of climbing the slope between change wheel and the throw-out collar.Utilize for example U. S. Patent 5362081 and Japan Patent 2000-316914, proposed concrete reduction speed ratio wheelchair or multi-range transmission wheelchair and solved the problems referred to above.These products are difficult to driving under the condition on road surface or be difficult in driving, change speed sometimes, and this is because the change of speed and the transmission of driving force can not take place simultaneously.The transmission device of these products itself is because its complexity and deal are heavy, price is high, and noise is big.They all can not make the user satisfied.

Summary of the invention

The present invention is used for addressing the above problem.The present invention will introduce a kind of new transmission device that is used for wheelchair, and this new transmission device price is low, in light weight, structure is very thin and can make things convenient for and change quickly speed when driving.The present invention will propose a kind of new universal transmission that is used for household electric appliance.

Transmission device provided by the invention has solved the problems referred to above; In this transmission device; A pair of independent gear row combines; And a planetary gear carrier and another planetary gear ring lump together; The shell of transmission device constitutes as input limit and the gear carriers operated of output limit respectively by said two, is installed on the fixed center axis perhaps to separate with this central shaft engagement or the sun gear that unclamps or the merging through two sun gears of control (sun gear) and realizes transmission work through controlling each rotation.

In operation, can select one of 4 kinds of patterns of this structure of following use: the aero mode that a planetary sun gear is fixed in central shaft and does not rotate with respect to central shaft; Two sun gear merging and the direct connection mode that dallies with respect to central shaft; The deceleration mode that another sun gear is fixed in central shaft and does not rotate with respect to central shaft; Two sun gears merge mutually and also be fixed in central shaft so that two sun gears not with respect to the stop modes of central shaft rotation.

The expectation planetary type gear transmission unit comprises: the groove cam rotating member, and its axial restraint and can under the support of central shaft, rotating, and have two grooves on the identical and outer surface that be used for groove cam at it; First groove cam; It moves with axial court one position along first groove on this groove cam rotating member; This position makes one of sun gear be engaged to central shaft so that fixing sun gear can not rotate and make the relative central shaft idle running of another sun gear simultaneously, and this first groove cam moves to and makes two not intermeshing positions of sun gear; Second groove cam, it intermeshes so that two sun gears freely rotate with respect to central shaft to move axially and to allow two sun gears along second groove on the groove cam rotating member.When transmission according to the rotational position of groove cam rotating member control two sun gears engagement (engagement), unclamp (disengagement), merge (integration) and separate (disintegration).

Each said sun gear all comprises the protrusion on the opposite flank that lays respectively on the sun gear inner peripheral surface with two sun gears.First groove cam and second groove cam do not rotate with central shaft.First groove cam have on its outer peripheral surface with each sun gear inner peripheral surface on the protrusion of protrusion engagement, and move to the position that is meshed with one of sun gear or move to the position that is not meshed with two sun gears.When first groove cam did not mesh with two sun gears, second groove cam was exerted pressure vertically to a sun gear and is made this sun gear move to the intermeshing position of side protrusion of two sun gears.For transmission work, according to the rotational position of groove cam rotating member control two sun gears engagement, unclamp, merge and separate.

Also expect to come control flume cam rotating member through the drive link that passes central shaft vertically.

Drive link stretches out central shaft, and its part of stretching out is meshed with the transmission handle through tape or linkage mechanism or the like.Rotational position according to the groove cam rotating member that determines through the action of moving the transmission handle is implemented transmission.

The transmission handle is meshed with the transmission device of two planetary gear type through tape or linkage mechanism or the like at least, so that make the transmission device of all planetary gear type that link to each other with the transmission handle implement transmission work simultaneously.

The transmission handle is meshed with actuator (actuator); And comprise: be used to detect the sensor that shifts the warping force that comes from driver element, also with good grounds that judge from the data of this sensor and control actuator so that the controller that transmission work is carried out automatically.

Central shaft and vehicle body mesh fast and unclamp, and when it is meshed, are not rotated with respect to this vehicle body.

The transmission device of planetary gear type is positioned at the center of the wheel of vehicle, and a gear carrier of vehicle is meshed with driver element, and another gear carrier is meshed with wheel.

If the present invention is applied to the vehicle as the wheelchair, the transmission device of planetary gear type just is mounted as follows:

Two independent epicyclic gear trains are installed on each wheel hub of wheelchair, and the shell of transmission device is formed as the input limit and the gear carrier on output limit respectively by two in the wheelchair, one side gear carrier and the gear ring of another side combine.Transmission work perhaps through making each be installed in sun gear and the central shaft engagement on the fixed center axis or unclamping, is perhaps perhaps separated with the merging of two sun gears through control, carries out.The planetary gear type transmission device is installed in the center of wheel, and a gear carrier is meshed with driver element, and another gear carrier is meshed with wheel.

The wheel that contains central shaft is apace with the wheelchair engagement with unclamp.Drive link through passing central shaft is vertically controlled transmission work.The drive link of each wheel all passes central shaft, and the transmission handle comes to be meshed with the projection of drive link through tape or linkage mechanism or the like, to make two wheels of wheelchair realize transmission simultaneously through mobile transmission handle.Driver element is the throw-out collar by the wheelchair that manpower drove.

Because gear carrier plays an important role for shell, the transmission device volume of planetary gear type provided by the present invention is little, in light weight.Central shaft can and unclamp with the vehicle body engagement.Need not use clutch just can select any pattern in aero mode, deceleration mode and the direct connection mode, and come transmission of drive force through dual mode at the transmission device of arbitrary pattern lower planetary gear type.In direct connection mode, throw-out collar directly connects with wheel and rotates with identical speed especially.

Description of drawings

Fig. 1 is the external side view that the perspective view that is installed in the present device on the wheelchair is shown a);

Fig. 1 b) is the private side view that the perspective view that is installed in the present device on the wheelchair is shown;

Fig. 2 is the perspective exploded view of 3 speed planetary gear type transmission parts;

Fig. 3 is the partial section of 3 speed planetary gear type transmission aero modes;

Fig. 4 is the sectional view along the hatching line A-A of Fig. 3;

Fig. 5 is the partial section of the direct connection mode of 3 speed planetary gear type transmission;

Fig. 6 is the sectional view along the hatching line B-B of Fig. 5;

Fig. 7 is the partial section of 3 speed planetary gear type transmission deceleration modes;

Fig. 8 is the sectional view along the hatching line C-C of Fig. 7;

Fig. 9 is the perspective view of the central shaft of 3 speed planetary gear type transmission;

Figure 10 is the perspective view of the drive link of 3 speed planetary gear type transmission;

Figure 11 is the perspective view of the groove cam rotating member of 3 speed planetary gear type transmission;

Figure 12 is the perspective view of the driving key (transmission key) of 3 speed planetary gear type transmission;

Figure 13 is the perspective view of 3 speed planetary gear type transmission, first groove cam;

Figure 14 is the perspective view of 3 speed planetary gear type transmission, second groove cam;

Figure 15 is the perspective view of the sun gear of 3 speed planetary gear type transmission;

Figure 16 is the perspective view of the input gear carrier inscribe gear stand (inputcarrier inscribing gear holder) of 3 speed planetary gear type transmission;

Figure 17 is the perspective view of the wheel center axle of 3 speed planetary gear type transmission;

In the accompanying drawing, the list of parts of each label representative is following:

1, central shaft, 2, drive link,

3, groove cam rotating member,

4, groove cam sense of rotation fixed component,

5, driving key, 6, first groove cam,

7, second groove cam, 8, quicken sun gear,

9, deceleration sun gear (deceleration sun gear), 10, add speed planetary gear,

11, epicyclic reduction gear,

12, quicken interior gear cutting machine,

13, slow down in gear cutting machine, 14, input gear carrier (Input Carrier),

15, input gear carrier inscribe gear stand,

16, input gear carrier throw-out collar support (input Carrier Push Rim Holder),

17, output gear wheel carrier (wheel center axle), 18, wheel,

19, quicken planet pin,

20, epicyclic reduction gear axle,

8z, 9z, 10z, 11z, 14z, 17z: bearing, 21, key (Key),

24, spring, 25, the transfer key engagement ring,

26,6a, 7a: bulb, 27, wheel center axle fixed base (shaft Block),

28, central shaft fixed component, 29, the dish hub (Disc Hub),

30, transmission device tape handle,

31, transmission device fixed plate tape,

32, transmission device fixed bolt tape,

33, transmission device guide plate tape,

35, transmission device deceleration tape,

36, transmission device quickens tape,

100, wheelchair main body, 110, the clamp type brake,

111, clamp, 112, brake disc (Disc).

Embodiment

Scheme to describe in detail the preferred embodiments of the present invention according to enforcement below.Fig. 1 is the perspective view that is installed on the present device on the wheelchair.Fig. 2 is the perspective exploded view of parts of the 3 speed planetary gear type transmission of Fig. 1.

The planetary gear type transmission device is considered to be made up of two epicyclic gear trains in the present invention.Epicyclic gear train is worked when sun gear is worked as fixing parts (constant element); If interior gear cutting machine is the input limit; Then gear carrier comes work and deceleration as the output limit, and we just claim and should be gear cutting machine in slowing down by interior gear cutting machine in this case.On the contrary, if gear carrier is the input limit, then interior gear cutting machine comes work and acceleration as the output limit, and we just claim and should be gear cutting machine in quickening by interior gear cutting machine in this case.Quicken sun gear, add speed planetary gear and quicken interior gear cutting machine to be meshed.Gear cutting machine is meshed in deceleration sun gear, epicyclic reduction gear and the deceleration.Because two epicyclic gear trains are separate, so the module of each epicyclic gear train, velocity ratio and size can be carried out different tissues.

Output gear wheel carrier (17) plays an important role as the center of wheel chair wheel, and it is with respect to central shaft (1) rotation, and (17z) supports by bearing, and radially extends, for the planetary gear type transmission device provides a sidewall.Four planet pins (20) are installed on this sidewall to support four epicyclic reduction gears among the epicyclic reduction gear row.Output gear wheel carrier (17) extends vertically, and with quicken in gear cutting machine (12) engagement, not with the deceleration of epicyclic reduction gear engagement in gear cutting machine (13) contact, and in slow down gear cutting machine (13).Output gear wheel carrier (17) is around bearing (17z) and outstanding vertically, and the outer peripheral surface of protrusion has spline (splined) shape to mesh with dish hub (29).

Input gear carrier (14) is steadily fixed through the bolt of throw-out collar, and the input limit is supported by bearing (14) with respect to central shaft (1) rotation, and radially extends and think that the planetary gear type transmission device provides another sidewall.Four planet pins (19) are installed on this sidewall and add speed planetary gear with four in the support acceleration epicyclic gear train.Four planet pins (19) are embedded in the through hole (15a) of input gear stand (15) inscribe gear stand; In said inscribe gear stand steadily is fixed in through bolt or welding and slows down on the gear cutting machine (12), so that gear cutting machine (12) rotates with input gear carrier (14) in slowing down.The throw-out collar (16) that is fixed in input gear carrier (14) is near hub for vehicle wheel, output gear wheel carrier (17), and comes the support wheel wheel hub through sliding bearing, and the planetary gear type transmission device is blocked in the periphery by guard ring.

Another kind method is also feasible, and the input gear carrier (14) that is promptly supported by bearing (14z) is given prominence to vertically, center on and quicken sun gear (8), and the radially extension between two epicyclic gear trains in edge is so that steadily fixing with the interior gear cutting machine (12) of deceleration.The lid position of output gear wheel carrier (17) is near input gear carrier (14); And another sidewall of planetary gear type transmission device is provided in this case, and through using the bearings hub for vehicle wheel so that guard ring is blocked in the periphery with the planetary gear type transmission device.

These two inner peripheral surfaces that quicken sun gear (8) and deceleration sun gear (9) all have formation, and (8d is 9d) with minor radius circumferential surface (8b, bearing shell 9b) (step) than the long radius inner peripheral surface.The minor radius circumferential surface around groove cam sense of rotation fixed component (4) and comprise a plurality of be positioned at the surface, with the radially protrusion (8b) of the radially protrusion (6c) of first groove cam (6) engagement; (8d 9d) comprises a smooth surface and than the long radius inner peripheral surface.(8c 9c) is formed near each side than the sun gear (8,9) of long radius circumferential surface, thereby is engaged with each other along centripetal direction a plurality of axial protrusions.With its centripetal direction protrusion (8c, 9c) two of corresponding arrangement sun gears (8,9) along centripetal direction move and be meshed with than the long radius inner peripheral surface (8d, slot milling holds first groove cam (6) under help 9d), and together the rotation.According to the rapid change rate of each sun gear, two sun gears (8,9) just might have the different external diameter, but miscellaneous part still can be by identical formation.

Central shaft (1) comprises axial hole (1a).One end is by forming than long radius and come the interior ring contacts side surfaces with the bearing (14z) that supports input gear carrier (14) with bearing shell (1b), the other end then have minor radius with the body engages of vehicle.The intermediate portion of central shaft (1) comprises plane (1c), is used to prevent that central shaft (1) from rotating; Also comprise annular groove (1d), be used to support the interior ring side of the bearing (17z) of this output gear wheel carrier (17) of said support.

The keyway (1f) of fixed groove cam sense of rotation fixed component (4) is formed at the middle part of central shaft (1) than the long radius part with the radial direction through hole (1e) that holds transmission device key (5).This through hole (1e) links to each other with the through hole (1a) of center of circle direction, and transmission device key (5) can sense of rotation be spent in the scope of 100 degree 80 and moved in this hole (1e).

The minor radius of central shaft (1) partly comprises 2 to 4 radial direction through hole (1g) that hold bulb (26), and bulb (26) makes central shaft (1) be fixed in the main body of vehicle.

Two ends of letter " T " shape drive link (2) all protrude in the through hole (1a) of central shaft (1).The head (2a) of drive link (2) joins with the end (1b) of central shaft (1) than the long radius part.The middle part that keyway or protrusion are formed at drive link (2) to be holding driving key (5), and with driving key (5) tight engagement.The other end of drive link (2) comprises makes the outstanding bearing shell that supports bulb of bulb (26), comprises that also groove (2d) is to be used for when the body portion of planetary gear type transmission device and vehicle leaves, holding bulb.This end comprises the groove (2e) with drive link engagement ring (25) engagement, also comprises making drive link engagement ring (25) and the unseparated annular groove of carriage (2f).

The spring that is installed between central shaft (1) and the drive link engagement ring (25) is all exerted pressure to bulb (26) on both direction, so that bulb protrudes in the outside of central shaft (1).Simultaneously, this spring provides the elastic force of sense of rotation, so that drive link engagement ring (25) meshes in sense of rotation with drive link (2), thereby makes central shaft (1) be in neutral gear position.When the body portion of wheel and vehicle from the time this spring make drive link (2) be in neutral gear position always, this spring is then handled drive link (2) and is made two sun gears be in direct connection mode when the body engages of wheel and vehicle.The outer dia of drive link engagement ring (25) is less than the outer dia of central shaft (1) minor radius part; So that wheel easily with the body engages of vehicle with unclamp; And drive link engagement ring (25) has groove on outer peripheral surface, to be meshed with driving belt support (30).

The groove cam rotating member (3) that is supported rotation by central shaft (1) is installed between bearing (14z) and the bearing (17z).Keyway (3a) is formed on the inner peripheral surface of groove cam rotating member (3), and with closely fixing with driving key (5), three pairs first groove cams (6) and second groove cam (7) then are formed on the outer peripheral surface of groove cam rotating member (3).

According to present embodiment; The guide slot that is used for first groove cam (6) guides first groove cam (6) to be meshed with acceleration sun gear (8) when the scope rotation of groove cam rotating member (3) at 0 degree to 5 degree (3b); And when groove cam rotating member (3) the scope rotation of 40 degree to 60 degree (3c) time just guide first groove cam (6) not with two sun gears (8; 9) be meshed, the time then guide first groove cam (6) to be meshed in the scope rotation of 80 degree to 90 degree (3d) when groove cam rotating member (3) at last with deceleration sun gear (9) according to present embodiment.

The guide slot that is used for second groove cam (7) then guides two sun gears (8,9) to be meshing with each other when the scope rotation of groove cam rotating member (3) at 45 degree to 55 degree (3e).Three couple in the guide slot (3b, 3c, 3d, 3e) is installed on the groove cam rotating member (3); Have starting point 0 degree, 120 degree, 240 degree respectively; The two is closed or banking to prevent first groove cam (6) and second groove cam (7); Thereby first groove cam and second groove cam all, centripetal direction are turned round well when moving at two cams (6,7).

Groove cam sense of rotation fixed component (4) fixes with respect to center-pole (1f) through key (21) and is installed between bearing (14z) and the bearing (17z).Three protrusions extend in parallel along centripetal direction from groove cam sense of rotation fixed component (4), and with the steering channel (3b, 3c, 3d, 3e) of groove cam rotating member (3) not in contact around groove cam rotating member (3).

First groove cam (6) comprises three grooves (6b) that hold bulb (6a), and this bulb (6a) is used for being meshed with the steering channel (3b, 3c, 3d, 3e) of groove cam rotating member (3); Also comprise three entad steering channels (6d), it meshes with groove cam sense of rotation fixed component (4) respectively on the internal surface of first groove cam (6).Radially protrusion (6c) is formed at the outer peripheral surface of first groove cam (6), with the radially protrusion engagement of the inner peripheral surface of sun gear (8,9).Therefore; Even groove cam rotating member (3) rotation; Also only move along the first groove cam steering channel (3b, 3c, 3d) at centripetal direction with first groove cam (6) of groove cam rotating member (3) engagement, this is because three the fixing parallel protrusions that extend from groove cam sense of rotation fixed component (4) mesh with three centripetal direction steering channels (6d).

Hold three bulbs (7a) with the engagement of the steering channel (3e) of groove cam rotating member (3) and hold three steering channels (7d) are formed at second groove cam (7) with three grooves (7b) with groove cam sense of rotation fixed component (4) engagement inner peripheral surface.The outer peripheral surface of second groove cam (7) comprises the bearing shell that holds bearing (9z), and this bearing (9z) is exerted pressure with centripetal direction to deceleration sun gear (9).Therefore; Come only to move through three bulbs (7a) at the steering channel of centripetal direction along second groove cam (6) with second groove cam (7) of groove cam rotating member (3) engagement; To apply pressure to bearing (9z) and this deceleration sun gear (9), like this since, even groove cam rotating member (3) rotation; Two sun gears all are meshing with each other, this be because extend from groove cam sense of rotation fixed component (4) three fixedly protrusion be meshed with three centripetal direction steering channels (7d).Bearing (8z) is installed on and quickens to quicken sun gear (8) to support along centripetal direction between sun gear (8) and the input gear carrier (14), like this since, when two sun gears all were meshing with each other, acceleration sun gear (8) just can not be pushed.

Wheel center axle fixed base (27) makes the body engages of wheel and vehicle (100).Wheel center axle fixed base (27) comprises " U " shape groove (27a), in order to be fixed to the cylinder-shaped body of vehicle (100).According to user's height, can pass cylinder with bolt wheel center axle fixed base (27) is fixed on the car body (100).Wheel center axle fixed base (27) comprises that through hole (27b) is fixing to be used for central shaft (1); And wheel center axle fixed base (27) extends vertically, and makes not support wheel central shaft (1) rotatably of this plane (27d) through the engagement between the plane of plane (27d) and central shaft (1).The middle part of wheel center axle fixed base (27) comprises holding and is used to support this central shaft (1) and from the bearing shell of its outstanding bulb.The end of wheel center axle fixed base (27) comprises the elongated hole that holds driving belt support (30), also comprises in order to not support the button annular groove of driving belt support (30) discretely.Another bearing shell (27e) is formed at the periphery on plane (27d) to be used to hold coaxial disks hub (29), and bearing shell (27e) comprises that also annular groove (27c) is to be used for supporting this dish hub (29).

Driving belt support (30) comes to be meshed with being installed on user's handrail transmission handle on every side through connecting two driving belts (35,36), and when the transmission handle person of being used moves, just moves thereupon.

In the driving belt (35,36) each all passed the driving belt corbel back slab that is connected with wheel center axle fixed base (27), between the outer shroud of driving belt support (30) and driving belt fixed plate (31), twines along opposite direction respectively, and fixed by driving belt fixed bolt (32).Axially protrusion is formed on the inner peripheral surface of driving belt support (30), to mesh with drive link engagement ring (25).

Dish hub (29) is connected to vehicle braking to be provided with braking system.The small radii inner peripheral surface of dish hub (29) is supported by wheel center axle fixed base (27) rotationally.The long radius inner peripheral surface of dish hub (29) has radially protrusion to be used for through being meshed transmission of drive force with output gear wheel carrier (17).The outer peripheral surface of dish hub (29) has the bearing shell with dish (112) engagement, and keyhole radially is formed on dish hub (29) side.Dish hub (29) rotates with dish (112) simultaneously, and this is because they are fixed together through bolt.Dish (112) meshes the rotation of controlling wheel with clamp.

Set forth the working state of the planetary gear type conveying means of making by the present invention below.

Fig. 5 is the partial cross-sectional view of the drive condition of expression 3 speed planetary gear type transmission under direct connection mode.Fig. 6 is the viewgraph of cross-section of cutting open along the B-B line of Fig. 5.

Spring (24) guiding drive link engagement ring (25) is to neutral gear position, and this neutral gear position makes drive link (2) be in direct connection mode when wheel and wheelchair engagement.If the head (2a) through drawing drive link (2) inserts central shaft (1) in the through hole (27b) of wheel center bracing strut (27); And discharge head (2a), so, the elastic force of spring (24) is exerted pressure to drive link (2); Thus; Bulb (26) is just promoted by drive link (2) and is outstanding from central shaft (1), like this since, central shaft (1) has just meshed with wheel center bracing strut (27).Drive link (2) is meshed with driving belt support (30) through drive link engagement ring (25).

Under the help of groove cam rotating member (3) and groove cam sense of rotation fixed component (4); Second groove cam (7) of planetary gear type transmission device pushes quicken bearing (9z) and deceleration sun gear (9) to sun gear (8) so that two sun gears are meshing with each other, and the guide slot (3e) of second groove cam (7) supports two sun gears to keep the engagement of two sun gears under direct connection mode.

Because first groove cam (6) place by two sun gears at it both do not contact the space that provided when merging under the situation (8d, 9d) in, so two sun gears can not mesh with central shaft (1).This means that (14z, the epicyclic gear train that 17z) supports can freely rotate with respect to central shaft (1) by two bearings.

Under direct connection mode, when driving force from throw-out collar (6) when being transfused to, driving force just passes to 4 acceleration planet pins (19) through input gear carrier (14).This driving force through add speed planetary gear (10) be delivered to quicken in gear cutting machine (12) with quicken sun gear (8), and simultaneously through with add the input gear carrier inscribe gear stand (15) that speed planetary gear bar (19) is meshed and be delivered to the interior gear cutting machine (13) that slows down.Merge with deceleration sun gear (9) owing to quicken sun gear (8), so deceleration sun gear (9) gear cutting machine (13) rotation in slowing down.Therefore, planetary gear type transmission device of the present invention has constituted direct connection mode.If (any two gears in the planetary pinion rotate together, and then remaining gear is along same direction, with same speed rotation, and this just is equal to direct coupled condition.)

Wheel (17) and throw-out collar (16) are rotatably supported by central shaft (1).Because input gear carrier (16) is directly linking to each other with output gear wheel carrier (17) in the connection mode, then the rotational speed of throw-out collar (16) equals the rotational speed of wheel (17).

Fig. 3 is that expression 3 speed planetary gear type transmission are in the partial cross-sectional view of quickening the drive condition under the connection mode.Fig. 4 is the viewgraph of cross-section of cutting open along the A-A line of Fig. 3.

If select aero mode through moving the transmission handle, the driving belt support (30) that is installed on wheel center bracing strut (27) then is rotated counterclockwise, and this is that gearing down band (35) is released because drive up that band (36) is stretched.As shown in Figure 4, driving key (5) is rotated counterclockwise, and this is because driving belt support (30) is meshed with combination drive link engagement ring (25)/drive link (2)/driving key (5).

If driving key (5) rotation, then also rotation together of groove cam rotating member (3), this just makes the steering channel of second groove cam (7) rotate.Can not be discharged the pressure of centripetal direction by second groove cam that groove cam sense of rotation fixed component (4) rotates; So that two sun gears (8; 9) merge, this is to move towards output gear wheel carrier (17) direction along steering channel (3f) because of second groove cam (7) with the bulb that places steering channel (7a) engagement.From the idle running in the opposite direction respectively of intrafascicular approximately two sun gears (8,9) that unclamp, this makes two sun gears unclamp.(in this case, there is not fixed component to be used for the warping force that transmits at two epicyclic gear trains.Yet when the user moved the transmission handle, he just can not push throw-out collar simultaneously, that is, this does not just come from the warping force input of this throw-out collar just.)

Then; The steering channel that rotates first groove cam of (3c->3b) with the steering channel of second groove cam simultaneously guides first groove cam (6) to the position that first groove cam (6) is meshed with the inner circumference protrusion (8b) that quickens sun gear (8), and first groove cam (6) can not be rotated by groove cam sense of rotation fixed component (4).Mesh with central shaft (1) along with quickening sun gear (8), first groove cam (6) and acceleration sun gear (8) engagement, then the planetary gear type transmission device just forwards aero mode to.

Transmission device runs well, and this is because mesh in a kind of motion of all protrusions, and in the motion engagement, does not have frictional noise or any resistance, rotates with low speed mode even if quicken sun gear (8).Under aero mode, when driving force from throw-out collar (16) when being transfused to, driving force is passed to four through input gear carrier (14) and quickens planet pins (19).This driving force is passed to gear cutting machine (12) and acceleration sun gear (8) in the acceleration through adding speed planetary gear (10).Although this driving force is passed to gear cutting machine (13), epicyclic reduction gear (11) and deceleration sun gear (9) in the reduction planetary through input gear carrier inscribe gear stand (15), owing to wherein do not have fixed component, still idle running of reduction gear row.Owing to have only accelerating gear to rafting commentaries on classics, then driving force is passed to and the output gear wheel carrier (17) that quickens gear cutting machine (12) engagement in the planet according to given transmission ratio.

If the user selects direct connection mode through moving the transmission handle, the driving belt support (30) that then is installed on the wheel center bracing strut (27) just is rotated counterclockwise, and this is that the band (36) that drives up is released because gearing down band (35) is stretched.Driving key (5) is rotated counterclockwise, and gets back to direct connection mode as shown in Figure 6, and this is because driving belt support (30) is meshed with combination drive link engagement ring (25)/drive link (2)/driving key (5).

Because the process from aero mode to direct connection mode is the inverse process from direct connection mode to aero mode, set forth so omit in detail herein.In this transmission process, first groove cam (6) unclamps with acceleration sun gear (8), and two sun gears merge with centripetal direction.

Transmission device runs well; This is because the protrusion on all circumferential surfacies all meshes in a kind of motion or unclamps; Engagement in the motion or separately do not bring any frictional noise or any resistance is even if each parts all is rotated with inequality and somewhat low speed respectively.

Fig. 7 is the partial cross-sectional view of the drive condition of expression 3 speed planetary gear type transmission under deceleration mode.

Fig. 8 is the viewgraph of cross-section of cutting open along the C-C line of Fig. 7.

Under direct connection mode; If the user selects deceleration mode through moving the transmission handle; The driving belt support (30) that then is installed on the wheel center bracing strut (27) just turns clockwise, and this is that the band (36) that drives up is released because gearing down band (35) is stretched.Driving key (5) turns clockwise, and is as shown in Figure 8, and this is because driving belt support (30) is meshed with combination drive link engagement ring (25)/drive link (2)/driving key (5).

If driving key (5) rotation, then groove cam rotating member (3) rotate together, and this just makes steering channel (3e, 3f, 3g) rotation of second groove cam.Can not be discharged the pressure of centripetal direction by second groove cam that groove cam sense of rotation fixed component (4) is rotated; This pressure makes two sun gears (8; 9) merge, this is because move towards output gear wheel carrier (17) direction along steering channel (3e->3g) with second groove cam (7) of the bulb that is arranged in steering channel (7a) engagement.Be rotated with opposite direction respectively from intrafascicular approximately two sun gears (8,9) that unclamp, the state that this has just caused warping force not transmitted, this is because do not have fixed component in two epicyclic gear trains.(in this case, there is not fixed component that warping force is transmitted in two epicyclic gear trains.But when the user moved the transmission handle, he just can not push throw-out collar simultaneously, that is, this does not just import from the warping force of throw-out collar just.)

Steering channel (the 3b of first groove cam that rotates with the steering channel of second groove cam; 3c; 3d) guide first groove cam (6), and first groove cam (6) can not be rotated by groove cam sense of rotation fixed component (4) to the position that the inner circumference protrusion (9b) that makes first groove cam (6) with deceleration sun gear (9) (decelerationsun gear) is meshed.First groove cam (6) and deceleration sun gear (9) (deceleration solar gear) engagement, and deceleration sun gear (9) (deceleration solargear) and central shaft (1) engagement.Transmission device runs well, and this is that engagement does not at the volley bring any frictional noise or any resistance because the protrusion of all circumferential surfacies all meshes in a kind of motion, even deceleration sun gear (9) rotation.

Under deceleration mode, when driving force is transfused to when coming in from pushing away limit (16), then driving force just is passed to four through input gear carrier (4) and quickens planet pins (19).Although this driving force is passed to gear cutting machine (12) and acceleration sun gear (8) in the acceleration through adding speed planetary gear (10), yet, still idle running do not arranged owing to wherein have the fixed component accelerating gear.Like this, this driving force is passed to gear cutting machine (13), epicyclic reduction gear (11) and deceleration sun gear (9) in the reduction planetary through input gear carrier inscribe gear stand (15).Owing to have only reduction gear to rafting commentaries on classics, then according to given transmission ratio, driving force just is passed to the output gear wheel carrier (17) that is meshed with epicyclic reduction gear axle (20) with the speed that reduces.

If the user selects direct connection mode through moving the transmission handle, the driving belt support (30) that then is installed on the wheel center bracing strut (27) just is rotated counterclockwise, and this is that gearing down band (35) is released because drive up that band (36) is stretched.Driving key (5) is rotated counterclockwise, and turns back to direct connection mode as shown in Figure 6, and this is because driving belt support (30) is meshed with combination drive link engagement ring (25)/transmission shaft (2)/driving key (5).

Because the process from deceleration mode to direct connection mode is the inverse process of direct connection mode to the process of deceleration mode, describe in detail so omit herein.

Above-mentioned preferred embodiment has shown the design according to 26S Proteasome Structure and Function of the present invention.The present embodiment that is used for showing and describes is a kind of for the enforcement legend that expresses possibility.Under above-mentioned description design, we can change it by each feasible mode.The present invention comprises each the disposable type of feasible shape in the accompanying claims scope.

Industrial applicibility

Because gear carrier (carrier) is to the shell role, so the transmission device volume of planetary gear type provided by the present invention is little, in light weight.Central shaft can with the body engages of vehicle with unclamp.The user need not to use clutch just can select aero mode, deceleration mode and the direct any pattern in the connection mode, and under any pattern, and the planetary gear type transmission device is transmission of drive force in two ways all.

Because the planetary gear type transmission device comprises the gear carrier that shell is served a dual purpose, so it is not only light but also compact.Its central shaft might with the body engages of vehicle with unclamp.Need not use clutch, the user just can and directly select among the connection mode at aero mode, deceleration mode, and in these patterns, driving force need not transmission device and just can transmit.Under any pattern, driving force can be transmitted with dual mode.

The present invention is applied to the wheel of wheelchair.The user just can climb the mountain with low speed (deceleration mode) with less strength and perhaps on sandy beach or carpet, move.On the level land, user's (aero mode) at a high speed moves.

Claims

1. the transmission device of a planetary gear type; It is characterized in that; A pair of single planetary gear row combines, and the gear carrier that one of them single planetary gear is arranged and another single planetary gear row's interior gear cutting machine lumps together, and the gear carrier that the shell of transmission device utilizes two said a pair of single planetary gears that operate as input limit and output limit respectively to arrange forms; And; Transmission work is to be rotatably mounted in sun gear on the fixed center axis to be meshed with said central shaft or to unclamp through controlling each, perhaps the merging through two sun gears of control with separate, realize.

2. transmission device according to claim 1, wherein, said transmission device comprises: aero mode, one and the engagement of said central shaft in the wherein said sun gear, and not with respect to said central shaft rotation; Direct connection mode, wherein said two sun gears combine and dally with respect to said central shaft; Deceleration mode, wherein, another said sun gear and the engagement of said central shaft, and not with respect to said central shaft rotation; And, stop mode, wherein, two sun gears combine and not with respect to this central shaft rotation.

3. transmission device according to claim 2, wherein, said transmission device comprises: the groove cam rotating member, it rotatably supports with axial restraint and by said central shaft, and first groove and second groove are formed on the same outer surface; First groove cam, its first groove with the said groove cam rotating member in axial edge moves, and allows a sun gear perhaps not rotate with respect to said central shaft or dally; And second groove cam; Its second groove with the said groove cam rotating member in axial edge moves; And allow said two sun gears or be harmonious or leave mutually; Thus, in transmission work, according to the rotational position of this groove cam rotating member make two sun gears engagement, unclamp, merge and separate controlled.

4. transmission device according to claim 3; Wherein, Said sun gear comprises: be positioned at the inner peripheral surface of two sun gears and the protrusion on the opposite flank; And said first and second groove cams are non-rotatably supported by said central shaft; The outer peripheral surface of said first groove cam comprises that protrusion is to be meshed with the said protrusion of the inner peripheral surface of each said sun gear; Said first groove cam moves to the position that is meshed with said sun gear or moves to the position of all unclamping with two sun gears, and said second groove cam is with axial pressure and under the situation that said first groove cam and two sun gears all unclamp, and the side protrusion that makes said sun gear move to two sun gears all is meshing with each other in position wherein.

5. transmission device according to claim 3, wherein, said groove cam rotating member is by controlling through the drive link of said central shaft vertically.

6. transmission device according to claim 5; Wherein, Said drive link passes through said central shaft; And the transmission handle is meshed with the projection of said drive link through bindiny mechanism, thus, realizes transmission work according to the rotational position of the said groove cam rotating member that is determined by said transmission handle.

7. transmission device according to claim 6; Wherein, Said transmission handle is meshed with at least two planetary gear type transmission devices through bindiny mechanism, thus the transmission work of all planetary gear type transmission devices of linking to each other with said transmission handle of Parallel Implementation.

8. transmission device according to claim 7; Wherein, Said transmission handle and actuator engages; And comprise and be used to detect the sensor that shifts the warping force that comes from driver element that also comprise controller, it is used for according to judging from the data of said sensor and controlling said actuator with automatic realization transmission work.

9. according to each described transmission device of claim 1 to 8, wherein, said central shaft apace with the body engages of vehicle with unclamp, and when it is meshed, do not rotate with respect to the main body of vehicle.

10. according to each described transmission device of claim 1 to 8; Wherein, Said transmission device is positioned at the center of the wheel of vehicle, a single planetary gear row's of vehicle gear carrier and driver element engagement, and its another single planetary gear row's gear carrier and wheel engagement.

11. vehicle; It is characterized in that: have single planetary gear row's who is meshed with driver element gear carrier and have another single planetary gear row's who is meshed with wheel gear carrier; The wheel center place is equipped with the planetary gear type transmission device, and wherein, a pair of single planetary gear row is combined in together; One of them single planetary gear row's gear carrier and another single planetary gear row's interior gear cutting machine lumps together; And the shell of transmission device utilizes two said a pair of single planetary gears rows' that operate as input limit and output limit respectively gear carrier and forms, and, transmission work or through allowing each rotatablely to be installed on sun gear on the fixed center axis thus all with said central shaft engagement or unclamp; Or, realize through controlling being harmonious or leaving mutually of two sun gears.

12. vehicle according to claim 11, wherein, the said wheel that contains said central shaft apace with the body engages of vehicle with unclamp.

13. vehicle according to claim 12, wherein, transmission work is controlled by the drive link that passes through said central shaft vertically.

14. vehicle according to claim 13; Wherein, The said drive link of each wheel all passes through said central shaft; And the transmission handle is meshed with the projection of said drive link through bindiny mechanism, the transmission that comes at least two wheels of Parallel Implementation vehicle through the action of moving a transmission handle thus.

15. vehicle according to claim 11, wherein, said driver element is the throw-out collar by the wheelchair of people's driving.