CN203809637U - Speed reduction device with torsion induction differential planetary gear trains - Google Patents

Speed reduction device with torsion induction differential planetary gear trains Download PDF

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Publication number
CN203809637U
CN203809637U CN201420191138.XU CN201420191138U CN203809637U CN 203809637 U CN203809637 U CN 203809637U CN 201420191138 U CN201420191138 U CN 201420191138U CN 203809637 U CN203809637 U CN 203809637U
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China
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planet carrier
wheel
planetary gear
gear
planet
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Expired - Fee Related
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CN201420191138.XU
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Chinese (zh)
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杨洋
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Individual
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Individual
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Abstract

The utility model discloses a speed reduction device with torsion induction differential planetary gear trains. The speed reduction device comprises the first planetary gear train (200) and the second planetary gear train (300), wherein the first planetary gear train (200) and the second planetary gear train (300) are fixedly arranged on an input shaft (100) in a sleeved mode and are arranged oppositely. The outer circumferences of outer gear rings of the planetary gear trains are respectively provided with face teeth. A first transmission gear (250) and a second transmission gear (350) are meshed with the face teeth and fixedly arranged on the same transmission shaft (400) in a sleeved mode. The total transmission ratio of one planetary gear train to the transmission gears is larger than that of the other planetary gear train to the transmission gears. The opposite faces of two planet carries are provided with conical teeth. Output devices (500) are meshed with the conical teeth. The structure is simple, novel and compact; the rotating speed and the torque can be adjusted and output according to the load working condition, and the speed reduction device has the advantages of being compact in structure, low in production cost, high in bearing capacity, wide in power transmission range and transmission range, low in operation noise, high in efficiency and long in service life.

Description

Torque sensing differential planetary train speed reducer
Technical field
The utility model belongs to mechanical transmissioning technology field, especially relates to a kind of differential planetary train speed reducer that utilizes planetary gear train differential to realize gearing down.
Background technique
Traditional retarder or speed changer have utmost point formula and stepless, step type retarder or speed changer, adopt gear transmission, only there is the velocity ratio of several definite values, cannot adjust output speed and torque according to load behavior, and when operation, need to pass through clutch mechanism, cut off power, then carry out shift speed change, operation relative complex.
Electrodeless formula retarder or speed changer adopt driving belt and the variable driven wheel of the working diameter incompatible transferring power that matches, can realize continuously changing of velocity ratio, thus the optimum Match of the power train of obtaining and engine operating condition, but it need to use torque-converters conventionally, complex structure, cost is higher.
Model utility content
For solving above technical problem, the utility model provides a kind of novelty simple in structure, can be according to the torque sensing differential planetary train speed reducer of the automatic output rotating speed regulation of load and torque.
Technological scheme is as follows:
A kind of torque sensing differential planetary train speed reducer, comprise the first row star wheel series and the second planetary gear train that is solidly set on input shaft and be oppositely arranged, described the first row star wheel series comprises the first sun gear, the first external toothing, the first planet carrier, and being engaged on the first row star-wheel between described the first sun gear and the first external toothing, described the first row star-wheel is connected with the first planet carrier;
Described the second planetary gear train comprises the second sun gear, the second external toothing, the second planet carrier, and be engaged on the second planet wheel between the second sun gear and the second external toothing, described the second planet wheel is connected with the second planet carrier, and wherein, described the first sun gear and the second sun gear are solidly set on input shaft, on described the first external toothing excircle, be provided with first surface tooth, first surface tooth outer end is engaged with the first driving gear;
On the second external toothing excircle, be provided with second tooth, second tooth outer end is engaged with the second driving gear, described the first driving gear is admittedly overlapped and is connected by transmission shaft with the second driving gear, wherein the resultant gear ratio of a planetary gear train and driving gear is greater than the resultant gear ratio of another planetary gear train and driving gear, for obtaining different velocity ratios, can design respectively different moduluses for gear or driving gear in the first row star wheel series and the second planetary gear train;
On described the first planet carrier and the second planet carrier opposing side, be provided with the first cone tooth, on described the second planet carrier and the first planet carrier opposing side, be provided with the second cone tooth, between described the first planet carrier and the second planet carrier, be provided with output unit, output unit engages with described the first cone tooth and the second cone tooth.
Adopt above structure, due to the first row star wheel series and the second planetary gear train resultant gear ratio unequal, and two transmission shafts are solidly set on same transmission shaft, therefore, the first driving gear equates with the second driving gear angular velocity and linear velocity is unequal, again because the first driving gear engages with first surface tooth and second tooth respectively with the second driving gear, make the linear velocity of the first external toothing and the second external toothing inconsistent, and the first sun gear and the second sun gear are solidly set on input shaft, its rotating speed is consistent, thereby make the first row star-wheel and the second planet wheel inconsistent around sun gear revolution speed, output unit equally rotates similar automobile differential planet wheel and output speed and torque, in the time that load changes, by the automatic adjustment of differential planetary train, output unit is by variable output rotating speed and torque.
The utility model had both solved traditional retarder or speed changer cannot adjust according to load behavior the problem of output speed and torque, owing to adopting planetary gear train transmission, there is compact structure, cost of production is low, and bearing capacity is large, transmitted power scope and the advantage such as transmission range is large, operation noise is little, efficiency is high and the life-span is long.
Preferably, described output unit, comprises ring retainer, with described the first cone tooth and the second cone tooth meshed gears, described gear set is on retainer, and described retainer middle part is offered porose, described input shaft passes in hole, on described retainer outer peripheral surface, is provided with external toothing.Adopt above structure, can ensure engaging of output unit and planet carrier bevel gear, and output speed and torque reposefully.
Preferably, described the first planet carrier comprises planet carrier body and attachment post, and described planet carrier body is ring, and attachment post one end is fixed on planet carrier body side, and the other end and described the first row star-wheel are rotatably connected; Described the second planet carrier comprises planet carrier body and attachment post, and described planet carrier body is ring, and attachment post one end is fixed on planet carrier body side, and the other end and described the second planet wheel are rotatably connected.Adopt above structure, can comparatively reasonably realize the rotation of the first planet carrier and the second planet carrier.
Preferably, on the planet carrier of less planetary gear train one side of described resultant gear ratio, be provided with overrunning clutch.Adopt above structure, can ensure that the first planet carrier is consistent with the sense of rotation of the second planet carrier, avoid occurring reversing.
Preferably, for obtaining preferably transmission effect, described the first row star-wheel is 2~6, and described the second planet wheel is 2~6.
Beneficial effect: the torque sensing differential planetary train speed reducer that adopts above technological scheme, this novelty simple in structure, compactness, the utility model can be according to load behavior accurate adjustment output speed and torque, there is compact structure, cost of production is low, and bearing capacity is large, transmitted power scope and the advantage such as transmission range is large, operation noise is little, efficiency is high and the life-span is long.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A view of Fig. 1;
Fig. 3 is the B-B view of Fig. 1;
Fig. 4 is the structural representation of output unit in the utility model;
Fig. 5 is the structural representation of planet carrier in the utility model.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail.
Embodiment 1:
As shown in Figure 1 to Figure 3, a kind of torque sensing differential planetary train speed reducer, comprise the first row star wheel series 200 and the second planetary gear train 300 that is solidly set on input shaft 100 and be oppositely arranged, described the first row star wheel series 200 comprises the first sun gear 210, the first external toothing 220, the first planet carrier 230, and be engaged on the first row star-wheel 240 between described the first sun gear 210 and the first external toothing 220, described the first row star-wheel 240 is connected with the first planet carrier 230;
The second planetary gear train 300 comprises the second sun gear 310, the second external toothing 320, the second planet carrier 330, and be engaged on the second planet wheel 340 between the second sun gear 310 and the second external toothing 320, described the second planet wheel 340 is connected with the second planet carrier 330, and wherein, described the first sun gear 210 and the second sun gear 310 are solidly set on input shaft 100, on described the first external toothing 220 excircles, be provided with first surface tooth 221, first surface tooth 221 outer ends are engaged with the first driving gear 250;
On the second external toothing 320 excircles, be provided with second tooth 321, second tooth 321 outer end is engaged with the second driving gear 350, described the first driving gear 250 is connected by the solid cover of transmission shaft 400 with the second driving gear 350, and the resultant gear ratio of the first row star wheel series 200 and the first driving gear 250 is greater than the resultant gear ratio of the second planetary gear train 300 and the second driving gear 350;
On described the first planet carrier 230 and the second planet carrier 330 opposing sides, be provided with the first cone tooth 231, on described the second planet carrier 330 and the first planet carrier 230 opposing sides, be provided with the second cone tooth 331, between described the first planet carrier 230 and the second planet carrier 330, be provided with output unit 500, output unit 500 engages with described the first cone tooth 231 and the second cone tooth 331.
In conjunction with Fig. 4 and Fig. 5, described output unit 500, comprise ring retainer 510, with described the first cone tooth 231 and the second cone tooth 331 meshed gears 520, described gear 520 is sleeved on retainer 510, it is porose 530 that described retainer 510 middle parts are offered, and described input shaft 100 passes in hole 530, on described retainer 510 outer peripheral surfaces, is provided with external toothing 540.
Described the first planet carrier 230 comprises planet carrier body 232 and attachment post 233, and described planet carrier body 232 is ring, and attachment post 233 one end are fixed on planet carrier body 232 sides, and the other end and described the first row star-wheel 240 are rotatably connected; Described the second planet carrier 330 comprises planet carrier body 332 and attachment post 333, and described planet carrier body 332 is ring, and attachment post 333 one end are fixed on planet carrier body 332 sides, and the other end and described the second planet wheel 340 are rotatably connected.
On described the second planet carrier, be provided with overrunning clutch 600; Described the first row star-wheel 240 is 2~6, and described the second planet wheel 340 is 2~6.
Embodiment 2:
As shown in Figure 1 to Figure 3, a kind of torque sensing differential planetary train speed reducer, comprise the first row star wheel series 200 and the second planetary gear train 300 that is solidly set on input shaft 100 and be oppositely arranged, described the first row star wheel series 200 comprises the first sun gear 210, the first external toothing 220, the first planet carrier 230, and be engaged on the first row star-wheel 240 between described the first sun gear 210 and the first external toothing 220, described the first row star-wheel 240 is connected with the first planet carrier 230;
The second planetary gear train 300 comprises the second sun gear 310, the second external toothing 320, the second planet carrier 330, and be engaged on the second planet wheel 340 between the second sun gear 310 and the second external toothing 320, described the second planet wheel 340 is connected with the second planet carrier 330, and wherein, described the first sun gear 210 and the second sun gear 310 are solidly set on input shaft 100, on described the first external toothing 220 excircles, be provided with first surface tooth 221, first surface tooth 221 outer ends are engaged with the first driving gear 250;
On the second external toothing 320 excircles, be provided with second tooth 321, second tooth 321 outer end is engaged with the second driving gear 350, described the first driving gear 250 is connected by the solid cover of transmission shaft 400 with the second driving gear 350, and the resultant gear ratio of described the first row star wheel series 200 and the first driving gear 250 is less than the resultant gear ratio of the second planetary gear train 300 and the second driving gear 350;
On described the first planet carrier 230 and the second planet carrier 330 opposing sides, be provided with the first cone tooth 231, on described the second planet carrier 330 and the first planet carrier 230 opposing sides, be provided with the second cone tooth 331, between described the first planet carrier 230 and the second planet carrier 330, be provided with output unit 500, output unit 500 engages with described the first cone tooth 231 and the second cone tooth 331.
In conjunction with Fig. 4 and Fig. 5, described output unit 500, comprise ring retainer 510, with described the first cone tooth 231 and the second cone tooth 331 meshed gears 520, described gear 520 is sleeved on retainer 510, it is porose 530 that described retainer 510 middle parts are offered, and described input shaft 100 passes in hole 530, on described retainer 510 outer peripheral surfaces, is provided with external toothing 540.
Described the first planet carrier 230 comprises planet carrier body 232 and attachment post 233, and described planet carrier body 232 is ring, and attachment post 233 one end are fixed on planet carrier body 232 sides, and the other end and described the first row star-wheel 240 are rotatably connected; Described the second planet carrier 330 comprises planet carrier body 332 and attachment post 333, and described planet carrier body 332 is ring, and attachment post 333 one end are fixed on planet carrier body 332 sides, and the other end and described the second planet wheel 340 are rotatably connected.
On described the first planet carrier, be provided with overrunning clutch 600; Described the first row star-wheel 240 is 2~6, and described the second planet wheel 340 is 2~6.
When unloaded, 340 of described the first row star-wheel 240 and the second planet wheels revolve round the sun around sun gear, and do not produce rotation, and external toothing does not rotate, in the time that load changes, the first row star-wheel 240 and the second planet wheel 340 produce rotation, make external toothing start rotation, because the first row star wheel series and the first driving gear and the second planetary gear train and driving gear have different resultant gear ratios, the drive wheel that is connected to same transmission shaft has identical angular velocity and different linear velocities, make the two external toothing rotating speeds that are engaged with inconsistent, and then make two planetary gear train occur differential, output unit 500 starts external output speed and torque, due to the P=F*V relation of rotating speed and torque, output unit 500 will be along with load variations output speed and torque changeably.
It should be noted that, above embodiment is only in order to technical solutions of the utility model to be described but not restriction technologies scheme, although claimant is explained in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, the amendment that those carry out technical solutions of the utility model or be equal to replacement, can not depart from aim and the scope of the technical program, all should be encompassed in the middle of the utility model claim scope.

Claims (5)

1. a torque sensing differential planetary train speed reducer, comprise and be solidly set on the first row star wheel series (200) and the second planetary gear train (300) that input shaft (100) is upper and be oppositely arranged, described the first row star wheel series (200) comprises the first sun gear (210), the first external toothing (220), the first planet carrier (230), and being engaged on the first row star-wheel (240) between described the first sun gear (210) and the first external toothing (220), described the first row star-wheel (240) is connected with the first planet carrier (230);
Described the second planetary gear train (300) comprises the second sun gear (310), the second external toothing (320), the second planet carrier (330), and be engaged on the second planet wheel (340) between the second sun gear (310) and the second external toothing (320), described the second planet wheel (340) is connected with the second planet carrier (330), it is characterized in that: described the first sun gear (210) is solidly set on input shaft (100) with the second sun gear (310), on described the first external toothing (220) excircle, be provided with first surface tooth (221), first surface tooth (221) outer end is engaged with the first driving gear (250),
On described the second external toothing (320) excircle, be provided with second tooth (321), second tooth (321) outer end is engaged with the second driving gear (350), described the first driving gear (250) is connected by the solid cover of transmission shaft (400) with the second driving gear (350), and wherein the resultant gear ratio of a planetary gear train and driving gear is greater than the resultant gear ratio of another planetary gear train and driving gear;
On described the first planet carrier (230) and the second planet carrier (330) opposing side, be provided with the first cone tooth (231), on described the second planet carrier (330) and the first planet carrier (230) opposing side, be provided with the second cone tooth (331), between described the first planet carrier (230) and the second planet carrier (330), be provided with output unit (500), output unit (500) engages with described the first cone tooth (231) and the second cone tooth (331).
2. torque sensing differential planetary train speed reducer according to claim 1, it is characterized in that: described output unit (500), comprise ring retainer (510), with described the first cone tooth (231) and the second cone tooth (331) meshed gears (520), described gear (520) is sleeved on retainer (510), porose (530) are offered at described retainer (510) middle part, described input shaft (100) passes in hole (530), on described retainer (510) outer peripheral surface, is provided with external toothing (540).
3. torque sensing differential planetary train speed reducer according to claim 1, it is characterized in that: described the first planet carrier (230) comprises planet carrier body (232) and attachment post (233), described planet carrier body (232) is ring, attachment post (233) one end is fixed on planet carrier body (232) side, and the other end and described the first row star-wheel (240) are rotatably connected; Described the second planet carrier (330) comprises planet carrier body (332) and attachment post (333), described planet carrier body (332) is ring, attachment post (333) one end is fixed on planet carrier body (332) side, and the other end and described the second planet wheel (340) are rotatably connected.
4. according to the torque sensing differential planetary train speed reducer described in claim 1 or 2 or 3, it is characterized in that: on the less planetary gear train one side planet carrier of described resultant gear ratio, be provided with overrunning clutch (600).
5. torque sensing differential planetary train speed reducer according to claim 1, is characterized in that: described the first row star-wheel (240) is 2~6, and described the second planet wheel (340) is 2~6.
CN201420191138.XU 2014-04-18 2014-04-18 Speed reduction device with torsion induction differential planetary gear trains Expired - Fee Related CN203809637U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420191138.XU CN203809637U (en) 2014-04-18 2014-04-18 Speed reduction device with torsion induction differential planetary gear trains

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Application Number Priority Date Filing Date Title
CN201420191138.XU CN203809637U (en) 2014-04-18 2014-04-18 Speed reduction device with torsion induction differential planetary gear trains

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103912653A (en) * 2014-04-18 2014-07-09 杨洋 Speed reducing device of torsion sensing differential planet gear system
CN106931132A (en) * 2015-12-14 2017-07-07 丰田自动车株式会社 Power transmission

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103912653A (en) * 2014-04-18 2014-07-09 杨洋 Speed reducing device of torsion sensing differential planet gear system
CN106931132A (en) * 2015-12-14 2017-07-07 丰田自动车株式会社 Power transmission

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140903

Termination date: 20150418

EXPY Termination of patent right or utility model