CN103291845A - Automatic uniform loading device of power dividing gear system - Google Patents
Automatic uniform loading device of power dividing gear system Download PDFInfo
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- CN103291845A CN103291845A CN2013102408097A CN201310240809A CN103291845A CN 103291845 A CN103291845 A CN 103291845A CN 2013102408097 A CN2013102408097 A CN 2013102408097A CN 201310240809 A CN201310240809 A CN 201310240809A CN 103291845 A CN103291845 A CN 103291845A
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Abstract
The invention discloses an automatic uniform loading device of a power dividing gear system. The automatic uniform loading device of the power dividing gear system comprises an input device, an output device and two duplicate gear shafts; the two duplicate gear shafts are divided into a left branch and a right branch, and each branch is provided with one duplicate gear shaft, and the duplicated gear shaft is fixedly connected with an input-level large gear and an output-level small gear; the input-level small gear and a division twisting input shaft are integrally processed, and the input-level small gear and the division twisting input shaft are meshed with two input-level large gears; an elastic thin wheel disk type surface of the output-level large gear is fixedly connected with a power output shaft, and the output-level large gear and the power output shaft are meshed with two output-level small gears respectively; an elastic wheel disk type surface is a compound hyperbolic type; different torsional deformation is generated by a hyperbolic-type elastic wheel disk, different radial deformation is generated through supporting of a suspension arm of the input-level gear to compensate unbalancing performance of torque, and therefore the purpose of uniform load is achieved. The automatic uniform loading device of the power dividing gear system is applied to a transmission system of a large power, and is suitable for being applied to a speed reducer which is large in power, large in speed reduction ratio, and high in reliability requirement to achieve uniform load.
Description
Technical field
The invention belongs to mechanical structure design and mechanical transmission fields, specifically, relate to the automatic load sharing device of a kind of power dividing gear system.
Background technique
Power dividing gear transmission system, its principle be the input gear simultaneously and many gear is meshed, import gear and input power distributed to simultaneously other gear that is engaged with.At present, the power dividing gear transmission system has been widely used in aviation, boats and ships, weapons and heavy machinery field.When the input gear is distributed to other gear that is engaged with simultaneously with input power in the power dividing gear transmission system, owing to there is the resiliently deformable of manufacturing, installation errors and member, can distribute uneven situation by emergent power, make one tunnel branch's stand under load excessive, the destruction that can cause transmission system when serious.
At the problem of all carrying of power dividing type gear train assembly, Chinese scholars has proposed certain methods." the Reviews of the Transmissions of the Soviet Helicopters " of NASA's issue, point out in the power dividing transmission system of certain helicopter, to be installed in a plurality of driven gears of input gear engagement and have on the circumferential tensionally elastic axle, the power dividing transmission system will all be carried.In order to realize the circumferential torsional elasticity of elastic axis, elastic axis generally adopts thin-walled major axis or large diameter thin-walled minor axis, makes the transmission system increase that takes up space.Sometimes in order to satisfy the elastic axis requirement of strength, need to increase the torsional stiffness of axle, cause transmission system can not reach desirable effect of load balancing mechanism.
Disclose a kind of power dividing gear device of automatic load sharing among the Chinese patent CN201547185U, when adopting elastic axis to satisfy all to carry when requiring, at two end faces of input and a plurality of output gears radially limited ring has been installed again, satisfied with this and all carry performance.This method is higher to the processing request of limited ring radially, and install, fixing difficulty.Proposed a kind of swelling cover and connect tooth and elastic sleeve load balancing mechanism in patent CN201666333U, this mechanism adopts the swelling cover to connect with elastic sleeve system is all carried; In structure, increase new member reaching desirable effect of load balancing mechanism, and increased the weight of transmission system, reduced the reliability of transmission system.
Above-mentioned several load-balancing device has all increased member to reach desirable effect of load balancing mechanism in structure; Increase the complexity of system when making and install, made the structure not compact, and caused gross weight to increase because increase dirivig member, made the advantage of power dividing gear transmission system be subjected to restriction to a certain degree.
Summary of the invention
For fear of the deficiencies in the prior art part, it is not compact to overcome its load-balancing device spatial structure, and the problem that causes gross weight to increase because increase dirivig member, and the present invention proposes the automatic load sharing device of a kind of power dividing gear system.
The technical solution adopted for the present invention to solve the technical problems is: comprise input device, output unit, double crosslinking gear shaft, wherein, input device comprises that branch turns round input shaft, input stage small gear, two input stage gearwheels, and output unit comprises pto, output stage gearwheel, two output stage small gears; Two branch roads about two double crosslinking gear shafts are divided into have a double crosslinking gear shaft and an input stage gearwheel and an output stage small gear to be connected respectively on each branch road; Input stage small gear and branch are turned round input shaft and are processed into one, and are meshed respectively with two input stage gearwheels; Output stage gearwheel and pto are connected, and are meshed with two output stage small gears respectively; Input stage small gear and two input stage gearwheels are cantilever support, and two input stage gearwheels and two double crosslinking gear shafts are connected by involute splines;
Described input stage gearwheel comprises Thin Elastic disc, input stage main gear rim, vibration isolator, bolt, grip gasket, the Thin Elastic disc separates with the input stage main gear rim, the input stage main gear rim is by two vibration isolators and the Thin Elastic disc axial restraint at two ends, the left and right sides, place grip gasket between Thin Elastic disc and two vibration isolators, vibration isolator, step up pad, Thin Elastic disc and connect by a plurality of circumferentially uniform bolts; The Thin Elastic disc profile of input stage gearwheel is multi sphere section compound hyperbolic type, along radius from small to large direction be followed successively by top switching circular arc, hyperbolic line segment, changeover portion, terminal switching circular arc, withdrawing inclined-plane, the smooth connection of each several part; The angle on withdrawing inclined-plane is 30-35 °, and changeover portion is random arc line, and the profile equation of hyperbolic line segment is:
Wherein, t
aBe the thickness of disc thinnest part, a is the radius of disc thinnest part, and r is the radius of any position, and t is the web thickness at any radius r place.
The Thin Elastic disc material of described input stage gearwheel is 32Cr3MoVA.
Beneficial effect
The automatic load sharing device of power dividing gear of the present invention system, do not increasing new dirivig member, do not change the shared spatial volume of transmission system, substantially do not increase under the condition of transmission system weight, produce different torsional deflections by hyperbolic-type surface elastic disc, and the radial floating of input stage gearwheel compensates manufacturing, installs and the error of distortion, makes this power dividing gear system reach and all carries purpose.The automatic load sharing device is applicable in the powerful transmission system, and it is more suitable especially to be used for realizing all carrying in high-power, the big retarding retarder than, high reliability request.
Description of drawings
Be described in further detail below in conjunction with the automatic load sharing device of drawings and embodiments to a kind of power dividing gear of the present invention system.
Fig. 1 is that wheelset axle of the present invention is to schematic layout pattern.
Fig. 2 is train of gearings end face schematic layout pattern of the present invention.
Fig. 3 is input stage gearwheel Thin Elastic disc cross-sectional view of the present invention.
Fig. 4 is that input stage gearwheel Thin Elastic disc profile of the present invention is formed connection diagram.
Fig. 5 is the train of gearings end face schematic layout pattern of the embodiment of the invention two.
Among the figure:
1. divide and turn round the terminal switching of input shaft 2. input stage small gears 3. input stage gearwheels 4. output stage small gears 5. output stage gearwheels 6. ptos 7. double crosslinking gear shafts 8. Thin Elastic disc 8a. tops switching circular arc 8b. hyperbolic line segment 8c. changeover portion 8d. circular arc 8e. withdrawing inclined-plane 9. input stage main gear rims, 10. vibration isolators, 11. bolts, 12. grip gasket, 13. power input shafts, 14. small spiral bevel gears, 15. big spiral bevel gears.
Embodiment
Present embodiment is the automatic load sharing device of a kind of power dividing gear system.
Embodiment one
Consult Fig. 1-Fig. 4, the automatic load sharing device of power dividing gear of the present invention system comprises input device, output unit and two double crosslinking gear shafts 7; Input device comprises that branch turns round input shaft 1, input stage small gear 2 and two input stage gearwheels 3, and output unit comprises power output shaft 6, two output stage small gears 4 and output stage gearwheel 5.
Two branch roads about two double crosslinking gear shafts are divided into have a double crosslinking gear shaft 7 to connect an input stage gearwheel 3 and an output stage small gear 4 respectively on each branch road.Input stage small gear 2 is processed into one with power input shaft 1, and is meshed respectively with two input stage gearwheels 3; Two output stage small gears 4 are connected with double crosslinking gear shaft 7, and are meshed with output stage gearwheel 5 respectively.Input stage small gear 2 and two input stage gearwheels 3 all are cantilever support, and two input stage gearwheels 3 all connect by involute splines with two double crosslinking gear shafts 7.
Two input stage gearwheels 3 are made of Thin Elastic disc 8, input stage main gear rim 9, vibration isolator 10, bolt 11 and grip gasket 12, Thin Elastic disc 8 separates with input stage main gear rim 9, both connect by involute splines, input stage main gear rim 9 is by two vibration isolators 10 and Thin Elastic disc 8 axial restraints at two ends, the left and right sides, Thin Elastic disc 8 and about place grip gasket 12 between two vibration isolators 10, vibration isolator 10, grip gasket 12 and Thin Elastic disc 8 are connected by 16 circumferential uniform bolts 11.
Thin Elastic disc 8 materials of two input stage gearwheels 3 adopt the 32Cr3MoVA material.
Thin Elastic disc 8 profiles of two input stage gearwheels 3 are the compound hyperbolic type, and along radius direction from small to large, profile is divided into five parts and forms: top switching circular arc 8a, hyperbolic line segment 8b, changeover portion 8c, terminal switching circular arc 8d, withdrawing inclined-plane 8e; The angle of withdrawing inclined-plane 8e is 30-35 °, and changeover portion 8c is arc section, and the profile equation of hyperbolic line segment 8b is:
Wherein, t
aBe the thickness of disc thinnest part, a is the radius of disc thinnest part, and r is the radius of any position, and t is the web thickness at any radius r place.
Embodiment two
As shown in Figure 5, the another kind of embodiment of the automatic load sharing device of power dividing gear of the present invention system also comprises reversing arrangement, and reversing arrangement comprises power input shaft 13, small spiral bevel gear 14 and big spiral bevel gear 15.Two output stage small gears 4 and output stage gearwheel 5 are chevron shaped gear.Small spiral bevel gear 14 is meshed with big spiral bevel gear 15, and both crossed axis angles are 90 °, and big spiral bevel gear 15 is connected branch with input stage small gear 2 and turns round on the input shaft 1; Gear train is two branch roads about branch is turned round input shaft 1 and is divided into, and have a double crosslinking gear shaft 7 to connect an input stage gearwheel 3 and output stage small gears 4 on each branch road respectively.Input stage small gear 2 is turned round input shaft 1 with branch and is processed into one, and is meshed respectively with two input stage gearwheels 3; Two output stage small gears 4 are processed into one with double crosslinking gear shaft 7, and are meshed with output stage gearwheel 5 respectively.Input stage small gear 2 and two input stage gearwheels 3 all are cantilever support, and two input stage gearwheels 3 all connect by involute splines with two double crosslinking gear shafts 7.Two input stage gearwheels 3 are made of Thin Elastic disc 8, input stage main gear rim 9, vibration isolator 10, bolt 11 and grip gasket 12, Thin Elastic disc 8 separates with input stage main gear rim 9, both connect by involute splines, input stage main gear rim 9 is by two vibration isolators 10 and Thin Elastic disc 8 axial restraints at two ends, the left and right sides, Thin Elastic disc 8 and about place grip gasket 12 between two vibration isolators 10, vibration isolator 10, grip gasket 12 and Thin Elastic disc 8 connect by 16 circumferential uniform bolts 11.
Thin Elastic disc 8 materials of two input stage gearwheels 3 adopt the 32Cr3MoVA material.
Thin Elastic disc 8 profiles of two input stage gearwheels 3 are the compound hyperbolic type, and along radius direction from small to large, profile is made up of five parts: top switching circular arc 8a, hyperbolic line segment 8b, changeover portion 8c, terminal switching circular arc 8d, withdrawing inclined-plane 8e; The angle of withdrawing inclined-plane 8e is 30-35 °, and changeover portion 8c is arc section, and the profile equation of hyperbolic line segment 8b is:
Wherein, t
aBe the thickness of disc thinnest part, a is the radius of disc thinnest part, and r is the radius of any position, and t is the web thickness at any radius r place.
Working principle
The automatic load sharing device of power dividing gear of the present invention system; Power is turned round input shaft 1 input through reversing arrangement from branch, and input stage small gear 2 is turned round input shaft 1 with branch and is processed into one.Input stage small gear 2 and two input stage gearwheels 3 mesh simultaneously, and its mutual alignment relation calculates by joining rack member, and input stage small gear 2 and two input stage gearwheels 3 all are cantilever support.Two output stage small gears 4 are meshed with output stage gearwheel 5 simultaneously, by pto 6 power are exported.Concrete power bang path is turned round 3 → two output stage small gears of 2 → two input stage gearwheels of input shaft 1 → input stage small gear, 4 → output stage gearwheel, 5 → pto 6 for dividing.In the moment of torsion transmittance process, because the transmission moment of torsion difference of two branch roads about processing, installation or distortion cause, then two input stage gearwheels 3 will produce different torsional deflections by hyperbolic-type elasticity disc 8, and the cantilever support by input stage gearwheel 3 and two input stage small gears 2 produces different radial deformations and comes the lack of uniformity of compensation torque, thereby reaches the purpose of all carrying.
Claims (2)
1. the automatic load sharing device of a power dividing gear system, comprise input device, output unit and two double crosslinking gear shafts, it is characterized in that: input device comprises that branch turns round input shaft, input stage small gear, two input stage gearwheels, and output unit comprises pto, output stage gearwheel, two output stage small gears; Two branch roads about two double crosslinking gear shafts are divided into have a double crosslinking gear shaft and an input stage gearwheel and an output stage small gear to be connected respectively on each branch road; Input stage small gear and branch are turned round input shaft and are processed into one, and are meshed respectively with two input stage gearwheels; Output stage gearwheel and pto are connected, and are meshed with two output stage small gears respectively; Input stage small gear and two input stage gearwheels are cantilever support, and two input stage gearwheels and two double crosslinking gear shafts are connected by involute splines;
Described input stage gearwheel comprises Thin Elastic disc, input stage main gear rim, vibration isolator, bolt, grip gasket, the Thin Elastic disc separates with the input stage main gear rim, the input stage main gear rim is by two vibration isolators and the Thin Elastic disc axial restraint at two ends, the left and right sides, place grip gasket between Thin Elastic disc and two vibration isolators, vibration isolator, step up pad, Thin Elastic disc and connect by a plurality of circumferentially uniform bolts; The Thin Elastic disc profile of input stage gearwheel is multi sphere section compound hyperbolic type, along radius from small to large direction be followed successively by top switching circular arc, hyperbolic line segment, changeover portion, terminal switching circular arc, withdrawing inclined-plane, the smooth connection of each several part; The angle on withdrawing inclined-plane is 30-35 °, and changeover portion is random arc line, and the profile equation of hyperbolic line segment is:
Wherein, t
aBe the thickness of disc thinnest part, a is the radius of disc thinnest part, and r is the radius of any position, and t is the web thickness at any radius r place.
2. the automatic load sharing device of power dividing gear according to claim 1 system, it is characterized in that: the Thin Elastic disc material of described input stage gearwheel is 32Cr3MoVA.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310240809.7A CN103291845B (en) | 2013-06-17 | 2013-06-17 | A kind of automatic load sharing device of power dividing gear system |
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| CN201310240809.7A CN103291845B (en) | 2013-06-17 | 2013-06-17 | A kind of automatic load sharing device of power dividing gear system |
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| CN103291845A true CN103291845A (en) | 2013-09-11 |
| CN103291845B CN103291845B (en) | 2016-01-06 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280237A (en) * | 2014-10-11 | 2015-01-14 | 西北工业大学 | Experiment device and method for measuring uniform load performance of power dividing gear system |
| CN104500655A (en) * | 2014-12-11 | 2015-04-08 | 中国航空动力机械研究所 | Torsion-transmission helicopter reducer |
| CN104500707A (en) * | 2014-12-19 | 2015-04-08 | 重庆大学 | Branch torque transmission mechanism for speed reduction |
| CN107685340A (en) * | 2016-08-05 | 2018-02-13 | 发那科株式会社 | Rotating shaft assembly and articulated robot |
| CN112069683A (en) * | 2020-09-08 | 2020-12-11 | 南京航空航天大学 | Optimization method and system for static load sharing of gear torque-sharing transmission system |
| CN116146669A (en) * | 2023-02-14 | 2023-05-23 | 郑州机械研究所有限公司 | Gear transmission device with load balancing and overload protection functions |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280237A (en) * | 2014-10-11 | 2015-01-14 | 西北工业大学 | Experiment device and method for measuring uniform load performance of power dividing gear system |
| CN104280237B (en) * | 2014-10-11 | 2017-01-11 | 西北工业大学 | Experiment device and method for measuring uniform load performance of power dividing gear system |
| CN104500655A (en) * | 2014-12-11 | 2015-04-08 | 中国航空动力机械研究所 | Torsion-transmission helicopter reducer |
| CN104500707A (en) * | 2014-12-19 | 2015-04-08 | 重庆大学 | Branch torque transmission mechanism for speed reduction |
| CN107685340A (en) * | 2016-08-05 | 2018-02-13 | 发那科株式会社 | Rotating shaft assembly and articulated robot |
| US10465768B2 (en) | 2016-08-05 | 2019-11-05 | Fanuc Corporation | Rotary axis module and articulated robot |
| US11111984B2 (en) | 2016-08-05 | 2021-09-07 | Fanuc Corporation | Rotary axis module and articulated robot |
| CN112069683A (en) * | 2020-09-08 | 2020-12-11 | 南京航空航天大学 | Optimization method and system for static load sharing of gear torque-sharing transmission system |
| CN112069683B (en) * | 2020-09-08 | 2024-02-20 | 南京航空航天大学 | Optimization method and system for static uniform load of gear torsion-dividing transmission system |
| CN116146669A (en) * | 2023-02-14 | 2023-05-23 | 郑州机械研究所有限公司 | Gear transmission device with load balancing and overload protection functions |
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| CN103291845B (en) | 2016-01-06 |
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