CN2052461U

CN2052461U - Transmission with inner engage

Info

Publication number: CN2052461U
Application number: CN 89204770
Authority: CN
Inventors: 王健
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-04-22
Filing date: 1989-04-22
Publication date: 1990-02-07

Abstract

The utility model relates to a coaxial type gear speed variator which adopts an inner engaged transmission form. The utility model has the structure that an eccentric and rigid inner and outer gear ring with speed variation is arranged between an outer gear which is combined with a shaft into integration and an inner gear ring which is combined with the other shaft into integration, and the inner and outer gear ring is inwards engaged with the outer gear and an outer gear ring. Furthermore, the inner and outer gear ring can be changed by an inversion gear which is outwards engaged with the outer gear and inwards engaged with the inner gear ring so as to variates speed in a reversible direction to transfer a rotating torque, multi-stage speed variation is realized by the use of inner and outer teeth duplicate gears which are coaxial and connected in series, and multi-barrier speed variation is realized by that an engaging tooth disc which is combined with the shaft into integration and the gear rings are matched with a gear-shift mechanism through a gear-shift engaging tooth sleeve and the gears.

Description

Transmission with inner engage

The design belongs to and is used for the gear drive that the variable gear ratio transmission rotatablely moves, particularly the coaxial-type speed change gear.

Speed changer can be divided into retarder or speed increaser by the ratio of revolutions of its input with output.The coaxial-type gear-shift transmission generally is the external gear transmission gear shift, also has a parallel with it change gear shaft outside coaxial input and output shaft, and its shortcoming is that the speed changer volume is big.Another kind of in-line gears speed change is a meshing transmission structure in adopting, and can cancel outer speed change gear, but present internally engaged gears is to adopt engagement driving in flexible internal gear and the ring gear, and it is little to exist transmission power, the shortcoming that the life-span is low, cost is high.

The design's purpose is to propose a kind of coaxial speed variator technological scheme, and this programme adopts internal gearing structure, can have the big advantage of through-put power simultaneously, and is easily manufactured and cost is low.

The design's basic structure form is in input relatively axial and that slip, in the output shaft, there is one to become the external gear of one on axle with axle, there is one to become the ring gear of one on another with axle, the interior external toothing of rigidity speed change that an off-centre is arranged between ring gear and the external gear, engagement in the external toothing in external gear and the rigidity, the interior engagement of external toothing and ring gear in the rigidity, external toothing is by bearings in the rigidity, and spring bearing and case of transmission are become one.When making retarder according to the design's speed changer structure, realize that the approach that slows down is to have the axle of external gear to make input shaft, there is the axle of ring gear to make output shaft, the internal gear of interior external toothing is more than the external gear number of teeth, the interior number of teeth of ring gear is more than the outer number of teeth of interior external toothing, and the input shaft revolution is realized slowing down greater than the output shaft revolution when being meshing with each other transmission.When being used as speed increaser, will import, output shaft commutation uses and gets final product.

The design for increase velocity ratio can be connected in series between external gear and the ring gear one or more coaxial in the external tooth duplicate gear, sliding sleeve connects between interior external tooth duplicate gear and the axle, external toothing in the eccentric speed change rigidity is arranged between the ring gear of the interior external tooth duplicate gear adjacent with external gear and the external gear, engagement in external gear and the interior external toothing, engagement in the ring gear of interior external toothing and interior external tooth duplicate gear, external toothing in the eccentric speed change rigidity is arranged between the external gear of interior external tooth duplicate gear and the adjacent ring gear, engagement in external gear and the interior external toothing, engagement in interior external toothing and the ring gear.According to present design, the interior external tooth duplicate gear of a serial connection of every increase just can enlarge one-level with velocity ratio.

Present design can be used for designing multi-speed transmission, and its specific constructive form is that the ring gear that will become one with axle becomes with an axle sliding sleeve and connects; The engaging gear of becoming one is with it arranged becoming on the external gear of one with axle, there is the gear ring that engages of becoming one with ring gear the ring gear corresponding section adjacent with this external gear, the joint fluted disc is arranged at engaging gear with engaging between the gear ring, engage the one of spool becoming that fluted disc and sliding sleeve connect ring gear; In engaging gear, the common outer radius that engages fluted disc and engage gear ring the soldered tooth cover is arranged, the slippage vertically of soldered tooth cover, plug together simultaneously engaging gear with engage fluted disc or joint gear ring with engage fluted disc or only with engage fluted disc and plug together; On the soldered tooth cover external diameter annular groove is arranged, have gear shift to dial finger in the annular groove, have fork shift arm and gear shift to dial and refer to connect, the fork shift arm the other end has the sliding hoop of gear shift, on the sliding hoop of gear shift the gear shift cotter way is arranged, and has shift shaft to pass the sliding hoop of gear shift, the fork shift pin is arranged on the shift shaft, and fork shift Xiao is in the gear shift cotter way.The structural characteristics of multi-speed transmission are at first to remove the constraint between axle and the ring gear, make to select gear to become possibility.Next is to set up engage a gear mechanism.The basic structure of every suit engage a gear mechanism is identical, all is by the sliding hoop of a gear shift, and fork shift arm and gear shift are dialled the soldered tooth cover that refers to a band groove and constituted.Correspondence engage a gear mechanism, with another external gear that combines as a whole on or in each on the external gear of external tooth duplicate gear with adjacent ring gear, in comprising on the ring gear of external tooth duplicate gear, the engaging gear that is combined as a whole with external gear is arranged respectively and engage gear ring with ring gear is combined as a whole.Each adjacent engaging gear with engage have between the gear ring and removed and ring gear between the axle that retrains become tooth disc integrated.The soldered tooth cover be enclosed within on the soldered tooth dish external diameter and with it in plug together.The slippage vertically of soldered tooth cover, simultaneously with engaging gear with to engage the fluted disc interpolation fashionable, the axle of band external gear is identical with a revolution of band joint fluted disc when its.When soldered tooth cover simultaneously with engages fluted disc and engages the gear ring interpolation fashionable, the axle of band external gear and band joint fluted disc spool rotating speed different, its velocity ratio can draw precise number by the velocity ratio of each driving gear of process in the calculated torque transmittance process.Only fashionable with soldered tooth cover interpolation when soldered tooth cover, the moment of torsion transmission between two axles is cut off, and becomes neutral gear.The soldered tooth cover is dialled by fork shift arm and gear shift by the sliding hoop of gear shift and is accused system axial displacement.Can establish many cover gearshift mechanisms and realize multistage gear shift, the implementation of multistage gear shift is to be connected in series the sliding hoop of a plurality of gear shift with a shift shaft, gear shift cotter way and the pin shelves that interlace and arrange according to all radians in its external diameter garden are respectively arranged on the sliding hoop of each gear shift, but the fork shift pin of setting on the rotation shift shaft chosen axis is gone up pin shelves overlap joint with setting the sliding hoop of gear shift, twitches just engage a gear on demand of shift shaft again.

Present design can also be used to designing reverse gear, transmits the moment of torsion of opposite direction rotation.The organization plan of reverse gear is to establish one or more tumbler gears between the external gear that combines as a whole with axle and corresponding ring gear, tumbler gear and external gear outer gearing, and with ring gear in mesh, swing to gear by becoming the bearings of one with housing.Constant speed reversing drive or speed change reversing drive can realize by the variation of adjusting multistage or single-stage driving ratio.The commutation speed changer that designs single velocity ratio can replace the design's the how fast drive mechanism form of interior external toothing with swinging to gear structure.

The design's embodiment is as shown in drawings:

Fig. 1 is the automobile gearbox according to the present design design;

Fig. 2 is Fig. 1 gearbox A-A sectional view, engagement speed changing structure in showing;

Fig. 3 is Fig. 1 gearbox B-B sectional view, and structure is swung in engagement in showing;

Fig. 4 is shift shaft and the sliding hoop of gear shift schematic representation.

Fig. 5 is Fig. 1 gearbox D-D sectional view, shows with axle and becomes the relation that engaging gear and the soldered tooth of the external gear of one overlap.

To illustrated explanation:

Shift shaft 1, upper shell 2,4, the sliding hoop 3 of 3 gear shifts, the sliding hoop of gear shift positioning screwn 4, external toothing 6 in 5,3 grades of transmissions of external toothing bearing in the speed change transmission, external toothing bearing 9 in the external tooth duplicate gear 8 in 7,3 grades on the fork shift arm, speed change transmission, external toothing 10 in 2 grades of speed changes, locking ball stage clip 11, external toothing bearing 12 in the speed change transmission, duplex gear ring 14 in 13,1 grades of external toothings and the reverse gear in 1 grade of speed change transmission, locking ball 15, sliding hoop locating slot hole 16, transmission shaft bearing 17, snap ring 18, transmission shaft 19, needle bearing 20,21,29,38, reverse dual-linked gear 22, reverse dual-linked gear axle 23, lower shell body 24, the screw 25 of draining the oil, spring pad 26, end cap 27, transmission shaft bearing 28, snap ring 30, transmission shaft 31, countersunk head fastening screw trip bolt 32, engaging gear 33, engage fluted disc 34, soldered tooth cover 35, gear shift are dialled and are referred to 36, engage gear ring 37, transmission shaft reverse gear 39, duplicate gear 40 inside and outside 2 grades, fork shift arm 41, fork shift pin 42, spring pad 43, oil injecting screw 44, the sliding hoop 45,1 of reverse gear, 2 grades of sliding hoops 46, fork shift cotter way 47, fork shift pin shelves 48, transmission shaft core retainer plate 49, transmission shaft mandrel 50, with the external gear 51 of transmission shaft 31 one, fork shift annular groove 52.

In conjunction with implementing accompanying drawing present design is further specified:

Present embodiment has comprised several derived structures of the design's basic structure form: multi-stage speed-changing structure, many grades of speed changing structures and swing to structure.

Transmission shaft 31 and 19 subtend sliding sleeves connect, and needle bearing 29 is supporting the mandrel 50 in the core retainer plate 49 of 19 embedding axles 31, and makes axle 19 concentric with 31.The external gear 51 that axle 31 has one to connect, engagement in the interior external toothing 6 of external gear 51 and speed change transmission, gear ring 6 is by support gear ring 6 and the interior engagement of the ring gear of inside and outside duplicate gear 8 with bearings 5 housing 2,24 one and axle 19,31 off-centre.If duplicate gear 8 is a ring gear that connects with axle 19 one just, the structure that then provides is by by external gear 51 between the design's the basic structure form axle 31 and 19, external toothing 6 and ring gear 8 transmit rotation torque in the eccentric speed change, realize the speed change transmission.In the design proposal shown in the accompanying drawing 1, duplicate gear 8 connects with axle 19 sliding sleeves, the gear ring 37 of joint is arranged on the ring gear of gear 8, on the axle 19 tooth disc integrated 34 is arranged, the engaging gear 33 that one is arranged on the external gear 51 is having the soldered tooth cover 35 that plugs together with it can be in axial slippage between engaging gear 33 and the gear teeth that engage gear ring 37 on fluted disc 34 external diameters.Tooth cover 35 is fashionable with gear 33, fluted disc 34 interpolations at the same time, an axle 19 and axle 31 transmissions such as revolution such as grade.Tooth cover 35 is only fashionable with fluted disc 34 interpolations, and axle 19 cuts off transmission with axle 31 and gets in touch, and becomes the neutral gear of no-output.Interpolation is fashionable simultaneously with fluted disc 34, gear ring 37 for tooth cover 35, realizes the one-level speed change transmission as the design's basic structure form.Tooth cover 35 is moved axially by gearshift mechanism control.Gearshift mechanism overlaps dialling in the annular groove 52 on 35 external diameters and refers to 36 by embedding tooth, refers to the 36 fork shift arms 7 that connect, the sliding hoop 3 of the gear shift of fork shift arm 7 the other ends, shift shaft 1 composition of the sliding hoop 3 of serial connection with dialling.Structure shown in the accompanying drawing 1 is multistage multi-speed transmission.The mode that realizes multi-change speed is the interior external tooth duplicate gear that utilizes axle 19 upper sliding sleeves to connect, and the external gear of each duplicate gear all adopts identical mode of structure, passes through eccentric interior external toothing and adjacent ring gear engagement, shown in external tooth duplicate gear 40 in Fig. 1.End one-level ring gear combines as a whole with axle 19.Can design the speed changer of any single velocity ratio with above-mentioned structural type.Realize that many grades of gear shift modes are at first to remove ring gear to connect with the endosome of axle 19, on the ring gear on the gear of setting, the joint gear ring is set then, on the external gear of correspondence, engaging gear is set, the joint fluted disc is set on axle 19, on the fluted disc external diameter, establish soldered tooth cover and gearshift mechanism.The sliding hoop of 1,2 gear shifts of accompanying drawing 1 46 mechanisms that connect with fork shift arm 41 show many gear shifts organization plan.The realization reverse gear is that the mode of back transfer rotation torque is that the final stage ring gear is designed to duplex ring gear 14, swinging to gear is duplicate gear 22, have transmission shaft reverse gear external gear 39 and axle sliding sleeve to connect on the axle 19, gear 39 connects with axle 19 by engage a gear mechanism.If designs fix reversing drive speed changer, just gear 39 and axle 19 need only be combined as a whole and can realize.The gear 22 of swinging to of this example is that the center is symmetrical arranged two with axle 19, can balanced swing to the radial pressure of gear mesh wheel 19.

Accompanying drawing 2 has been showed the meshing relation of external gear, interior external toothing and another transmission shaft ring gear of the design's basic structure form transmission shaft.Accompanying drawing 3 has showed that the design swings to drive mechanism form transmission shaft external gear, swings to the meshing relation of gear and another transmission shaft ring gear.The a of accompanying drawing 4, b, c, three sliding hoops are respectively 4,3 grades, 1,2 grade and the sliding hoop of reverse gear.Three fork shift cotter ways of sliding on the hoop 47 are " doing " font respectively, " soil " font and " worker " font, three fork shift pins 42 on the shift shaft 1 point-blank, rotate shift shaft 1 and can select the relative position of the fork shift pin shelves 48 on 3 fork shift pins 42 and each the sliding hoop, thereby realize sliding stirring of binding round a certain setting.Locating slot screw 4 among Fig. 1, spring 11 and steel ball 15 cooperate with groove hole 16 can make sliding

hoop

3,46,45 location.The screw 25 of draining the oil in Fig. 2 medi-spring pad 43, oiling screw 44 and Fig. 1, spring pad 26 are used in housing oiling or drain the oil respectively outside housing.

Engagement system can reduce volume in the design's speed changer adopted, and the gear ring structure flexibility is compared inside and outside the eccentric speed change of employing rigidity in interior engagement gear teeth wheels, has the big advantage of transmission ratio, and is also simple in processing and manufacturing, and cost is low.

Claims

1, a kind of gear-shift transmission, comprise input shaft, output shaft, speed change gear group, the design's feature is that input shaft and output shaft are on same axis, by rigidity inside engaged gear group speed change, its basic structure form is axially relatively and in the input of slipping, output shaft, an external gear of becoming one is arranged on the axle, a ring gear of becoming one is arranged on another, the interior external toothing of speed change that an off-centre is arranged between ring gear and the external gear, engagement in external gear and the interior external toothing, engagement in interior external toothing and the ring gear; Interior external toothing is the rigidity gear ring, and by bearings, spring bearing and case of transmission combine as a whole.

2, according to the described gear-shift transmission of claim 1, it is characterized in that external toothing replaces by swinging to gear in the described rigidity, swing to gear and external gear outer gearing, with ring gear in mesh, swing to gear by becoming the bearings of one with housing.

3, according to claim 1 or 2 described gear-shift transmissions, in it is characterized in that the structural type of engagement speed change gear group be and axle ring gear of becoming one and another external gear between have one or more coaxial in the external tooth duplicate gear, sliding sleeve connects between interior external tooth duplicate gear and the axle, external toothing in the eccentric speed change of rigidity is arranged between the ring gear of the interior external tooth duplicate gear adjacent with external gear and the external gear, engagement in external gear and the interior external toothing, engagement in interior external toothing and the ring gear; The interior external toothing of eccentric speed change that rigidity is arranged between the external gear of interior external tooth duplicate gear and the adjacent ring gear, engagement in external gear and the interior external toothing, engagement in interior external toothing and the ring gear; The eccentric interior external toothing of rigidity is supported by bearing bracket stand, and bearing bracket stand and housing combine as a whole.

According to claim 1 or 2 described gear-shift transmissions, it is characterized in that 4, ring gear connects with the axle sliding sleeve; External gear has the engaging gear of becoming one, there is the joint gear ring of becoming one at the corresponding engaging gear of ring gear place, engage fluted disc and connect with engaging to have between the gear ring at engaging gear with the axle one of slipping ring gear, at engaging gear, engage fluted disc and engage the common outer radius of gear ring the soldered tooth cover is arranged, the slippage vertically of soldered tooth cover, plug together simultaneously engaging gear with engage fluted disc or engage fluted disc with engage gear ring or only with engage fluted disc and plug together; On the soldered tooth cover external diameter annular groove is arranged, have gearshift to dial in the annular groove and refer to, have fork shift arm and gear shift to dial and refer to connect, the fork shift arm the other end has on the sliding hoop of gear shift, the sliding hoop of gear shift gear shift Xiao groove is arranged, have shift shaft to pass the sliding hoop of gear shift, fork shift Xiao is arranged on the shift shaft, fork shift Xiao is in gear shift Xiao groove.

According to the described gear-shift transmission of claim 3, it is characterized in that 5, ring gear connects with the axle sliding sleeve; External tooth dies the engaging gear of becoming one, there is the joint gear ring of becoming one at the corresponding engaging gear of ring gear place, engage fluted disc and connect with engaging to have between the gear ring at engaging gear with the axle one of slipping ring gear, at engaging gear, engage fluted disc and engage the common outer radius of gear ring the soldered tooth cover is arranged, the slippage vertically of soldered tooth cover, plug together simultaneously engaging gear with engage fluted disc or engage fluted disc with engage gear ring or only with engage fluted disc and plug together; On the soldered tooth cover external diameter annular groove is arranged, have gear shift to dial finger in the annular groove, have fork shift arm and gear shift to dial and refer to connect, the fork shift arm the other end has on the sliding hoop of gear shift, the sliding hoop of gear shift gear shift Xiao groove is arranged, have shift shaft to pass the sliding hoop of gear shift, fork shift Xiao is arranged on the shift shaft, fork shift Xiao is in gear shift Xiao groove.

6, according to the described gear-shift transmission of claim 5, it is characterized in that having a shift shaft to be connected in series the sliding hoop of a plurality of gear shift, gear shift Xiao groove and Xiao's shelves that interlace and arrange according to all radians in its external diameter garden are respectively arranged on the sliding hoop of each gear shift.