CN106838201A - Two teeth difference balance drive-type automobile differential - Google Patents

Two teeth difference balance drive-type automobile differential Download PDF

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Publication number
CN106838201A
CN106838201A CN201710101707.5A CN201710101707A CN106838201A CN 106838201 A CN106838201 A CN 106838201A CN 201710101707 A CN201710101707 A CN 201710101707A CN 106838201 A CN106838201 A CN 106838201A
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CN
China
Prior art keywords
teeth difference
shock wave
axial direction
bevel gear
slot type
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Pending
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CN201710101707.5A
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Chinese (zh)
Inventor
梁尚明
屈九洲
陈飞宇
张园
曾亚迪
龚金禄
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Sichuan University
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Sichuan University
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Priority to CN201710101707.5A priority Critical patent/CN106838201A/en
Publication of CN106838201A publication Critical patent/CN106838201A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H48/00Differential gearings
    • F16H48/06Differential gearings with gears having orbital motion
    • F16H48/08Differential gearings with gears having orbital motion comprising bevel gears
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H48/00Differential gearings
    • F16H48/38Constructional details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H49/00Other gearings
    • F16H49/001Wave gearings, e.g. harmonic drive transmissions

Abstract

Two teeth difference balance drive-type automobile differential, belongs to technical field of mechanical transmission.The present invention provides a kind of new automobile differential mechanism, the outside of its slot type two teeth difference axial direction shock wave balance bevel gear is bevel gear, inside is slot type two teeth difference axial direction shock wave balance, power is input into by the bevel gear outside the shock wave balance bevel gear of slot type two teeth difference axial direction, spherical oscillating tooth is transmitted to through the balance inside the shock wave balance bevel gear of slot type two teeth difference axial direction, power is transmitted to spherical oscillating tooth the end tooth wheel being connected with left half axle and the retainer being connected with right axle shaft again, left half axle and right axle shaft are connected with left and right wheel respectively, so that left and right wheel can differential.The differential mechanism eliminates the planetary gear system in orthodox car differential mechanism, spherical oscillating tooth and slot type two teeth difference axial direction shock wave balance bevel gear, multiple tooth engagement is between end tooth wheel and retainer, therefore the differential mechanism small volume, it is lightweight, registration is big, bearing capacity is strong, can be widely used for needing the wheeled vehicle of differential mechanism, such as automobile, engineering truck.

Description

Two teeth difference balance drive-type automobile differential
Technical field
The present invention relates to a kind of two teeth difference balance drive-type automobile differential, for the differential of wheeled vehicle, belong to machinery Drive technology field.
Background technology
Conventional automobile differential is realized using the planetary gear system being made up of multiple spur bevel gears at present The purpose of differential, although the system can realize the function of automobile left and right half differential, but the component of a system it is more, axially and Radial dimension is all big, volume is big, heavier-weight, especially for heavy-duty car for, in order to be able to realizing differential and transmitting enough Power, then volume and weight can further increase;Spur bevel gear transmission also has registration low, therefore bearing capacity is low, Transmission efficiency is not high, spur bevel gear processing difficulties, the shortcomings of manufacturability is poor.
The content of the invention
The purpose of the present invention is:It is the disadvantages mentioned above for overcoming existing automobile differential to exist, the present invention provides a kind of structure It is simple it is compact, axially and radially size is small, lightweight, registration is high, the new differential of large carrying capacity, transmission efficiency Device --- two teeth difference balance drive-type automobile differential.
The present invention is adopted the technical scheme that to solve its technical problem:A kind of two teeth difference balance drive-type automobile differential Device, mainly by end tooth wheel (1), slot type two teeth difference axial direction shock wave balance bevel gear (2), retainer (3), spherical oscillating tooth (4), left half Axle (5), right axle shaft (6), left shell half (7), sleeve (8), taper roll bearing (9,18), screw (10), deep groove ball bearing (11, 19), key (12,17) composition, it is characterised in that:The planetary gear system of orthodox car differential mechanism is abandoned, instead " slot type two Tooth deviation shaft is to shock wave balance bevel gear --- spherical oscillating tooth --- end tooth wheel " system, the system mainly includes end tooth wheel (1), groove Formula two teeth difference axial direction shock wave balance bevel gear (2), retainer (3), spherical oscillating tooth (4), differential is realized with this system, constitutes differential Device;The outside of slot type two teeth difference axial direction shock wave balance bevel gear (2) is the driven spur bevel gear of main reducing gear, and inside is groove Formula two teeth difference axial direction shock wave balance, therefore slot type two teeth difference axial direction shock wave balance bevel gear (2) is both a cone tooth of main reducing gear Wheel, in being again " slot type two teeth difference axial direction shock wave balance bevel gear --- spherical oscillating tooth --- end tooth wheel " system differential mechanism Slot type two teeth difference axial direction shock wave balance, slot type two teeth difference axial direction shock wave balance bevel gear (2) is by main reducing gear and " slot type two teeth difference Axial shock wave balance bevel gear --- spherical oscillating tooth --- end tooth wheel " system differential mechanism is organically integrated, slot type two teeth difference Axial shock wave balance bevel gear (2) is fixedly connected into an entirety and is rolled by a pair of circular cones with left shell half (7) by screw (10) Sub- bearing (18) is supported in frame;Z is provided with retainer (3) is circumferentially equidistant3Individual radius is identical with the radius of spherical oscillating tooth (4) Axially extending bore, Z3Individual spherical oscillating tooth (4) be placed in the axially extending bore of retainer (3) and can left and right motion vertically, in two teeth In difference balance drive-type automobile differential, the track of spherical oscillating tooth (4) geometric center is a cylinder surface curve, where the curve Cylinder be referred to as the indexing cylinder of two teeth difference balance drive-type automobile differential, spherical oscillating tooth (4) and meanwhile with retainer (3), end tooth Wheel (1) and slot type two teeth difference axial direction shock wave balance bevel gear (2) be meshed contact and transmit motion and power, end tooth wheel (1) and Slot type two teeth difference axial direction shock wave balance bevel gear (2) is circumferentially provided with guide groove, end tooth wheel (1) and slot type two teeth difference in its end face The circumferential guide groove of both axial shock wave balance bevel gear (2) ends is spherical oscillating tooth (4) edge in the axially extending bore of retainer (3) A series of envelope surface of residing positions, shape of these guide grooves in shaft section when being axially moved and being rotated with retainer (3) It is circular arc, the radius of circular arc is identical with the radius of spherical oscillating tooth (4), the track of these guide grooves is cosine function curve along the face of cylinder Distribution, wherein slot type two teeth difference axial direction shock wave balance bevel gear (2) guide groove track cosine function periodicity be equal to slot type The wave amplitude number of two teeth difference axial direction shock wave balance bevel gear (2), is designated as Z2, and Z2=2, and the cosine of the guide groove track of end tooth wheel (1) Function cycle number is equal to the number of teeth of end tooth wheel (1), is designated as Z1, end tooth wheel (1) connected firmly by key (17) with left half axle (5), is kept Frame (3) is connected firmly by key (12) with right axle shaft (6);Left half axle (5) is supported in left shell half by a pair of taper roll bearings (9) (7) in, left end and the left side wheel (13) of left half axle (5) are mutually connected firmly;The two ends of right axle shaft (6) pass through a pair of deep groove ball bearings (11,19) are respectively supported in left half axle (5) and in slot type two teeth difference axial direction shock wave balance bevel gear (2), the right side of right axle shaft (6) End mutually connects firmly with the right wheel (14);The cosine function periodicity Z of the guide groove track of end tooth wheel (1)1With the axial direction of retainer (3) Via count Z3Difference 2, slot type two teeth difference axial direction shock wave balance bevel gear realizes axial shock wave.End tooth wheel (1), slot type two teeth difference axle Overlapped to the axis of rotation of shock wave balance bevel gear (2), retainer (3), left half axle (5), right axle shaft (6) five.
Other NM places of differential mechanism of the present invention use prior art.
Compared with the prior art primary object of the invention is:
1. the present invention uses " slot type two teeth difference axial direction shock wave balance bevel gear --- spherical oscillating tooth --- end tooth wheel " system generation For the planetary gear system of orthodox car differential mechanism, the system mainly includes end tooth wheel, slot type two teeth difference axial direction shock wave balance cone Gear, retainer, spherical oscillating tooth, differential is realized with this system, constitutes differential mechanism.
2. the outside of slot type two teeth difference axial direction shock wave balance bevel gear is the driven spur bevel gear of main reducing gear, internal It is slot type two teeth difference axial direction shock wave balance, therefore slot type two teeth difference axial direction shock wave balance bevel gear is both a cone tooth of main reducing gear Wheel, in being again " slot type two teeth difference axial direction shock wave balance bevel gear --- spherical oscillating tooth --- end tooth wheel " system differential mechanism Slot type two teeth difference axial direction shock wave balance, slot type two teeth difference axial direction shock wave balance bevel gear is by main reducing gear and " slot type two teeth difference axle --- spherical oscillating tooth --- the end tooth wheel to shock wave balance bevel gear " system differential mechanism is organically integrated, slot type two teeth difference axle With left shell half one entirety is fixedly connected into by screw to shock wave balance bevel gear and is supported on by a pair of taper roll bearings In frame.
3. Z is provided with retainer is circumferentially equidistant3The radius identical axially extending bore of individual radius and spherical oscillating tooth, Z3It is individual spherical Oscillating tooth be placed in the axially extending bore of retainer and can left and right motion vertically, in two teeth difference balance drive-type automobile differential, The track of spherical oscillating tooth geometric center is a cylinder surface curve, and the cylinder where the curve is referred to as two teeth difference balance drive-type automobile The indexing cylinder of differential mechanism, spherical oscillating tooth simultaneously with retainer, end tooth wheel and slot type two teeth difference axial direction shock wave balance bevel gear phase Engagement contact and transmit motion and power, end tooth wheel and slot type two teeth difference axial direction shock wave balance bevel gear in its end face circumferentially Guide groove is provided with, the circumferential guide groove of both end tooth wheel and slot type two teeth difference axial direction shock wave balance bevel gear end is that spherical oscillating tooth is being protected A series of envelope surface of residing positions when holding in the axially extending bore of frame axially movable and being rotated with retainer, these guide grooves exist Shape in shaft section is circular arc, and the radius of circular arc is identical with the radius of spherical oscillating tooth, and the track of these guide grooves is cosine function Curve along the face of cylinder distribution, the wherein cosine function periodicity of the guide groove track of slot type two teeth difference axial direction shock wave balance bevel gear Equal to the wave amplitude number Z of slot type two teeth difference axial direction shock wave balance bevel gear2, and Z2=2, and the cosine letter of the guide groove track of end tooth wheel Several weeks issue is equal to the tooth number Z of end tooth wheel1, end tooth wheel connected firmly by key with left half axle, and retainer is connected firmly by key with right axle shaft; Left half axle is supported in left shell half by a pair of taper roll bearings, and left end and the left side wheel of left half axle are mutually connected firmly;Right axle shaft Two ends by a pair of deep groove ball bearings be respectively supported in left half axle and slot type two teeth difference axial direction shock wave balance bevel gear in, it is right The right-hand member of semiaxis is mutually connected firmly with the right wheel;The cosine function periodicity Z of the guide groove track of end tooth wheel1Axial direction with retainer leads to Hole count Z3Difference 2.Shock wave balance bevel gear realizes axial shock wave for slot type two teeth difference axial direction.End tooth wheel, slot type two teeth difference axially swash Ripple balance bevel gear, retainer, left half axle, the axis of rotation of right axle shaft overlap.
4. the axial shock wave balance bevel gear of end tooth wheel, slot type two teeth difference, retainer are axially symmetric structure, inertia force and institute By radially, circumferentially external force all autobalances, therefore differential mechanism smooth running.
5. spherical oscillating tooth and end tooth wheel, retainer and slot type two teeth difference axial direction shock wave balance bevel gear be it is multiple tooth engage, Therefore registration is big, large carrying capacity is capable of achieving high-power, high pulling torque differential gearing.
6. the structure of both end tooth wheel and slot type two teeth difference axial direction shock wave balance bevel gears end channels is essentially identical, difference It is only that the parameter of the equation of locus of end channels is different, this feature can reduce the processing and manufacturing cost of differential mechanism.
7. the tooth number Z of end tooth wheel1With the tooth number Z that the axially extending bore number of retainer is spherical oscillating tooth3It is 2 to differ, the tooth of slot type two Deviation shaft realizes axial shock wave to shock wave balance bevel gear.
It is of the invention compared with existing conventional automobile differential, with following beneficial technique effect:
1. size significantly reduces, and weight is lighter
The present invention replaces passing using " slot type two teeth difference axial direction shock wave balance bevel gear --- spherical oscillating tooth --- end tooth wheel " system The planetary gear system of system automobile differential, axial shock wave, and groove are realized with slot type two teeth difference axial direction shock wave balance bevel gear Formula two teeth difference axial direction shock wave balance bevel gear is by main reducing gear and " slot type two teeth difference axial direction shock wave balance bevel gear --- spherical work Tooth --- end tooth wheel " system differential mechanism is organically integrated, and makes the axially and radially size of transmission device all smaller, thus this The compact conformation of invention differential mechanism, volume is smaller, alleviates weight.
2. registration is big, and bearing capacity is high
Spherical oscillating tooth is multiple tooth nibbling with end tooth wheel, retainer and slot type two teeth difference axial direction shock wave balance bevel gear in the present invention Close, the spherical oscillating tooth that can have up to 50% simultaneously participates in joggleword, therefore registration is high, and bearing capacity is high, be capable of achieving big work( Rate, high pulling torque differential gearing.
3. good manufacturability, low production cost
Part in differential mechanism of the present invention is less, simple structure, and end tooth wheel and slot type two teeth difference axial direction shock wave balance bevel gear The structure of both end channels is essentially identical, and the parameter for differing only in the equation of locus of end channels is different, it is easy to process, work Skill is good, low production cost.
4. stress equalization, smooth running
The axial shock wave balance bevel gear of end tooth wheel, slot type two teeth difference in differential mechanism of the present invention, retainer are axially symmetric structure, Inertia force and suffered radially, circumferentially external force all autobalances, therefore differential mechanism smooth running.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.But will be it is emphasized that tool of the invention Body implementation method is not limited to the form described by example below, and those skilled in the art is not paying creative work In the case of, other specific embodiments can be also easily designed, therefore should not be by specific embodiment given below Embodiment be interpreted as protection scope of the present invention, protection scope of the present invention is limited in given embodiment.
Fig. 1 is the structural representation of two teeth difference balance drive-type automobile differential
Fig. 2 is the section expanded schematic diagram along reference cylinder of two teeth difference balance drive-type automobile differential
Fig. 3 is the structural representation of end tooth wheel
Fig. 4 is the structural representation of slot type two teeth difference axial direction shock wave balance bevel gear
Fig. 5 is to maintain the structural representation of frame
Fig. 6 is the differential gearing schematic diagram of two teeth difference balance drive-type automobile differential
Fig. 7 is that each wheel is illustrated with the relative position relation of two teeth difference balance drive-type automobile differential when automobile turns left Figure
Fig. 8 is the threedimensional model and guide groove geometric locus figure of end tooth wheel
Fig. 9 is the threedimensional model and guide groove geometric locus figure of slot type two teeth difference axial direction shock wave balance bevel gear
The mark pair for scheming to know label in above-mentioned each accompanying drawing is liked:1 end tooth wheel;2 slot type two teeth differences axial direction shock wave balance cone tooth Wheel;3 retainers;4 spherical oscillating tooths;5 left half axles;6 right axle shafts;7 left shell halfs;8 sleeves;9 taper roll bearings;10 screws;11 is deep Ditch ball bearing;12 keys;13 left side wheels;14 the right wheels;The active spur bevel gear of 15 main reducing gears;16 two teeth difference balances Drive-type automobile differential;17 keys;18 taper roll bearings;19 deep groove ball bearings.
Specific embodiment
Two teeth difference balance drive-type automobile differential shown in Fig. 1 to Fig. 5 and Fig. 8 and Fig. 9, mainly by end tooth wheel (1), slot type Two teeth difference axial direction shock wave balance bevel gear (2), retainer (3), spherical oscillating tooth (4), left half axle (5), right axle shaft (6), left shell half (7), sleeve (8), taper roll bearing (9,18), screw (10), deep groove ball bearing (11,19), key (12,17) composition, it is special Levy and be:The planetary gear system of orthodox car differential mechanism is abandoned, instead " slot type two teeth difference axial direction shock wave balance cone tooth Wheel --- spherical oscillating tooth --- end tooth wheel " system, the system mainly includes end tooth wheel (1), slot type two teeth difference axial direction shock wave balance Bevel gear (2), retainer (3), spherical oscillating tooth (4), differential is realized with this system, constitutes differential mechanism;Slot type two teeth difference axially swashs The outside of ripple balance bevel gear (2) is the driven spur bevel gear of main reducing gear, and inside is slot type two teeth difference axial direction shock wave pendulum Disk, therefore slot type two teeth difference axial direction shock wave balance bevel gear (2) is both a bevel gear of main reducing gear, is again " slot type two teeth difference Slot type two teeth difference axial direction shock wave in axial shock wave balance bevel gear --- spherical oscillating tooth --- end tooth wheel " system differential mechanism Balance, slot type two teeth difference axial direction shock wave balance bevel gear (2) is by main reducing gear and " slot type two teeth difference axial direction shock wave balance bores tooth Wheel --- spherical oscillating tooth --- end tooth wheel " system differential mechanism is organically integrated, slot type two teeth difference axial direction shock wave balance cone tooth Wheel (2) is fixedly connected into an entirety and is supported on by a pair of taper roll bearings (18) with left shell half (7) by screw (10) In frame;Z is provided with retainer (3) is circumferentially equidistant3The radius identical axially extending bore of individual radius and spherical oscillating tooth (4), Z3Individual ball Shape oscillating tooth (4) be placed in the axially extending bore of retainer (3) and can left and right motion vertically, in two teeth difference balance drive-type automobile In differential mechanism, the track of spherical oscillating tooth (4) geometric center is a cylinder surface curve, and the cylinder where the curve is referred to as two teeth difference pendulum The indexing cylinder of dish driving formula automobile differential, spherical oscillating tooth (4) at the same with retainer (3), end tooth wheel (1) and slot type two teeth difference Axial shock wave balance bevel gear (2) is meshed contact and transmits motion and power, end tooth wheel (1) and slot type two teeth difference axial direction shock wave Balance bevel gear (2) is circumferentially provided with guide groove, end tooth wheel (1) and slot type two teeth difference axial direction shock wave balance bevel gear in its end face Both (2) the circumferential guide groove of end be spherical oscillating tooth (4) in the axially extending bore of retainer (3) axially movable and with retainer (3) a series of envelope surface of residing positions when rotating, shape of these guide grooves in shaft section is circular arc, the radius of circular arc with The radius of spherical oscillating tooth (4) is identical, and the track of these guide grooves is distribution of the cosine function curve along the face of cylinder, wherein the tooth of slot type two Deviation shaft is equal to slot type two teeth difference axial direction shock wave balance and bores to the cosine function periodicity of the guide groove track of shock wave balance bevel gear (2) The wave amplitude number of gear (2), is designated as Z2, and Z2=2, and the cosine function periodicity of the guide groove track of end tooth wheel (1) is equal to end tooth wheel (1) the number of teeth, is designated as Z1, end tooth wheel (1) connected firmly by key (17) with left half axle (5), and retainer (3) is by key (12) and right half Axle (6) is connected firmly;Left half axle (5) is supported in left shell half (7) by a pair of taper roll bearings (9), the left end of left half axle (5) with Left side wheel (13) is mutually connected firmly;The two ends of right axle shaft (6) are respectively supported at left half axle by a pair of deep groove ball bearings (11,19) (5) in and in slot type two teeth difference axial direction shock wave balance bevel gear (2), right-hand member and the right wheel (14) of right axle shaft (6) are mutually connected firmly; The cosine function periodicity Z of the guide groove track of end tooth wheel (1)1With the axially extending bore number Z of retainer (3)3Difference 2, slot type two teeth difference Axial shock wave balance bevel gear realizes axial shock wave.End tooth wheel (1), slot type two teeth difference axial direction shock wave balance bevel gear (2), holding Frame (3), left half axle (5), the axis of rotation of right axle shaft (6) five overlap.Black curve in Fig. 8 is the several of spherical oscillating tooth (4) What track of the center on the reference cylinder of end tooth wheel (1), the black curve in Fig. 9 is the geometric center of spherical oscillating tooth (4) Track on the reference cylinder of slot type two teeth difference axial direction shock wave balance bevel gear (2).Two teeth difference balance drive-type vehicle differential The reference cylinder of fast device and the reference cylinder of end tooth wheel (1), the indexing of slot type two teeth difference axial direction shock wave balance bevel gear (2) The face of cylinder is to overlap.
The operation principle of differential mechanism of the present invention is:
When the driven wheel of differential of main reducing gear is that slot type two teeth difference axial direction shock wave balance bevel gear (2) is driven and with isogonism Speed n2(referring to Fig. 1, Fig. 2) during rotation, the guide groove of slot type two teeth difference axial direction shock wave balance bevel gear (2) produces axial mechanical wave Promote spherical oscillating tooth (4) by slot type two teeth difference axial direction shock wave balance bevel gear (2) guide groove shock wave rule axially movable, ball Shape oscillating tooth (4) is engaged and promotes them respectively with rotating speed n while also being contacted with end tooth wheel (1) and retainer (3)1、n3Rotate, from And a two degrees of freedom differential system is constituted, motion and power on end tooth wheel (1) and retainer (3) are then transmitted to and its phase respectively Left half axle (5), the right axle shaft (6) for connecting firmly, and it is finally transmitted to left side wheel (13), the right wheel (14).End tooth wheel (1) and guarantor Frame (3) is held to be rotated respectively in the presence of driving force, but respective motion state be it is uncertain, it is different by left and right rear wheel Road surface, bend situation are determined.When automobile on straight road straight-line travelling, left side wheel (13) and the right wheel (14) are without speed discrepancy When, end tooth wheel (1) is identical with the rotating speed of retainer (3), i.e., differential mechanism does not have differential action.Now, each part in differential system Geo-stationary is kept, torque is input into by slot type two teeth difference axial direction shock wave balance bevel gear (2), is averagely transmitted to through spherical oscillating tooth (4) End tooth wheel (1) and retainer (3).Travel when automobile turning or on rough road, behind left side wheel (13) and the right wheel (14) when there is speed discrepancy, spherical oscillating tooth (4) is ordered about by slot type two teeth difference axial direction shock wave balance bevel gear (2), is on the one hand driven Moved end gear (1) and retainer (3) are rotated, and are on the other hand led in the axial direction of retainer (3) while being rotated with retainer (3) Axially moved in groove, it is ensured that end tooth wheel (1) and retainer (3) are able to realize differential in the case where transmission is not departed from.And Due to the effect of the torque that the active force of spherical oscillating tooth (4) opposite end gear (1) and retainer (3) is produced, make the driving that rotating speed is slow The bigger torque of the fast driving wheel of specific speed can be obtained on wheel.
The differential property of differential mechanism to illustrate the invention, if left and right wheel speed is respectively n behind automobile5(n5=n1)、n6 (n6=n3), the rotating speed of slot type two teeth difference axial direction shock wave balance bevel gear (2) is n2, then can be obtained by Fig. 6:
In formula, Z1--- the number of teeth of end tooth wheel;Z3--- the number of teeth of spherical oscillating tooth.
If automobile will turn left, two front-wheels of automobile in the presence of steering mechanism (Fig. 7), its axis and the trailing wheel of automobile two Axis intersect at P points, now can be considered whole automobile be around P points revolution.In the case where wheel and ground are non-slip, after two The rotating speed of wheel should be directly proportional to turning radius, can be obtained by Fig. 7:
In formula, r --- bend mean radius;L --- rear tread half.
Simultaneous solution formula (1), formula (2), and makeCan then obtain:
It is determined that vehicle parameter and driving conditions under, n2、Z1、Z3, L be it is known.Therefore, n5With n6Only with radius of turn R and become.Therefore differential mechanism of the present invention possesses differential function, the vehicle for equipping the differential mechanism can be by any half curve.
Disclosed by the invention is widely suitable to differential mechanism in need wheeled vehicle, such as automobile, engineering truck.

Claims (3)

1. two teeth difference balance drive-type automobile differential, mainly by end tooth wheel (1), slot type two teeth difference axial direction shock wave balance bevel gear (2), retainer (3), spherical oscillating tooth (4), left half axle (5), right axle shaft (6), left shell half (7), sleeve (8), taper roll bearing (9,18), screw (10), deep groove ball bearing (11,19), key (12,17) composition, it is characterised in that:Orthodox car differential is abandoned The planetary gear system of device, instead " slot type two teeth difference axial direction shock wave balance bevel gear --- spherical oscillating tooth --- end tooth wheel " system System, the system mainly includes end tooth wheel (1), slot type two teeth difference axial direction shock wave balance bevel gear (2), retainer (3), spherical oscillating tooth (4) differential, is realized with this system, differential mechanism is constituted;The outside of slot type two teeth difference axial direction shock wave balance bevel gear (2) is main deceleration The driven spur bevel gear of device, inside is slot type two teeth difference axial direction shock wave balance, therefore slot type two teeth difference axial direction shock wave balance cone Gear (2) is both a bevel gear of main reducing gear, is again " slot type two teeth difference axial direction shock wave balance bevel gear --- spherical work Slot type two teeth difference axial direction shock wave balance in tooth --- end tooth wheel " system differential mechanism, slot type two teeth difference axial direction shock wave balance Bevel gear (2) is by main reducing gear and " slot type two teeth difference axial direction shock wave balance bevel gear --- spherical oscillating tooth --- end tooth wheel " system Differential mechanism is organically integrated, and slot type two teeth difference axial direction shock wave balance bevel gear (2) is solid by screw (10) with left shell half (7) Surely connect into an entirety and be supported in frame by a pair of taper roll bearings (18);It is provided with retainer (3) is circumferentially equidistant Z3The radius identical axially extending bore of individual radius and spherical oscillating tooth (4), Z3The axial direction that individual spherical oscillating tooth (4) is placed on retainer (3) leads to In hole and can left and right motion vertically, in two teeth difference balance drive-type automobile differential, spherical oscillating tooth (4) geometric center Track is a cylinder surface curve, and the cylinder where the curve is referred to as the indexing cylinder of two teeth difference balance drive-type automobile differential, Spherical oscillating tooth (4) connects while being meshed with retainer (3), end tooth wheel (1) and slot type two teeth difference axial direction shock wave balance bevel gear (2) Touch and transmit motion and power, end tooth wheel (1) and slot type two teeth difference axial direction shock wave balance bevel gear (2) in its end face circumferentially Guide groove is provided with, the circumferential guide groove of both end tooth wheel (1) and slot type two teeth difference axial direction shock wave balance bevel gear (2) end is spherical work A series of envelope of tooth (4) residing positions axially movable and when being rotated with retainer (3) in the axially extending bore of retainer (3) Curved surface, shape of these guide grooves in shaft section is circular arc, and the radius of circular arc is identical with the radius of spherical oscillating tooth (4), and these are led The track of groove is distribution of the cosine function curve along the face of cylinder, and wherein slot type two teeth difference axial direction shock wave balance bevel gear (2) is led The cosine function periodicity of grooved rail mark is equal to the wave amplitude number of slot type two teeth difference axial direction shock wave balance bevel gear (2), is designated as Z2, and Z2 =2, and the cosine function periodicity of the guide groove track of end tooth wheel (1) is equal to the number of teeth of end tooth wheel (1), is designated as Z1, end tooth wheel (1) Connected firmly with left half axle (5) by key (17), retainer (3) is connected firmly by key (12) with right axle shaft (6);Left half axle (5) is by one Taper roll bearing (9) is supported in left shell half (7), left end and the left side wheel (13) of left half axle (5) are mutually connected firmly;Right axle shaft (6) two ends are respectively supported in left half axle (5) by a pair of deep groove ball bearings (11,19) and slot type two teeth difference axial direction shock wave is put In discone gear (2), right-hand member and the right wheel (14) of right axle shaft (6) are mutually connected firmly;The cosine letter of the guide groove track of end tooth wheel (1) Several weeks issue Z1With the axially extending bore number Z of retainer (3)3Difference 2, slot type two teeth difference axial direction shock wave balance bevel gear is realized axially Shock wave;End tooth wheel (1), slot type two teeth difference axial direction shock wave balance bevel gear (2), retainer (3), left half axle (5), right axle shaft (6) Five axis of rotation overlaps.
2. two teeth difference balance drive-type automobile differential according to claim 1, it is characterised in that:Above-mentioned end tooth wheel (1), slot type two teeth difference axial direction shock wave balance bevel gear (2), retainer (3) are axially symmetric structure, inertia force and suffered radial direction, All outward forces all autobalances, therefore differential mechanism smooth running.
3. two teeth difference balance drive-type automobile differential according to claim 1, it is characterised in that:Above-mentioned spherical oscillating tooth The multiple tooth ball for engaging, can have up to 50% is with end tooth wheel, retainer and slot type two teeth difference axial direction shock wave balance bevel gear Shape oscillating tooth simultaneously participates in joggleword, therefore registration is high, and bearing capacity is high, is capable of achieving high-power, high pulling torque differential gearing.
CN201710101707.5A 2017-02-24 2017-02-24 Two teeth difference balance drive-type automobile differential Pending CN106838201A (en)

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CN201710101707.5A CN106838201A (en) 2017-02-24 2017-02-24 Two teeth difference balance drive-type automobile differential

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107461474A (en) * 2017-09-15 2017-12-12 四川大学 Three tooth difference plane steel balls are driven retainer drive-type automobile differential
CN107477164A (en) * 2017-09-28 2017-12-15 四川大学 Two-tooth difference plane steel ball driven type automobile differential
CN107654607A (en) * 2017-09-15 2018-02-02 四川大学 Two-tooth difference plane steel ball is driven holder-type automobile differential
CN107725721A (en) * 2017-10-09 2018-02-23 四川大学 Two-tooth difference plane steel ball is driven Central inner gear drive-type automobile differential

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH180556A (en) * 1934-04-20 1935-10-31 Weidmann Gottfried Differential.
CN102348911A (en) * 2009-03-24 2012-02-08 瓦列里尼古拉耶维奇·克拉西科夫 Harmonic differential for a vehicle
CN105443717A (en) * 2016-01-05 2016-03-30 四川大学 Inner two-phase shock wave wheel driving rolling-into block type automobile differential
CN105508552A (en) * 2016-01-28 2016-04-20 四川大学 Any-tooth-difference inner gear driven rolling pin roller block type automobile differential
CN105570424A (en) * 2016-01-08 2016-05-11 四川大学 Any-tooth-difference inner cam shock wave rolling block type automobile differential
CN205423738U (en) * 2016-03-16 2016-08-03 四川大学 Tooth -like automotive differential of internal gear driven pendulum

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH180556A (en) * 1934-04-20 1935-10-31 Weidmann Gottfried Differential.
CN102348911A (en) * 2009-03-24 2012-02-08 瓦列里尼古拉耶维奇·克拉西科夫 Harmonic differential for a vehicle
CN105443717A (en) * 2016-01-05 2016-03-30 四川大学 Inner two-phase shock wave wheel driving rolling-into block type automobile differential
CN105570424A (en) * 2016-01-08 2016-05-11 四川大学 Any-tooth-difference inner cam shock wave rolling block type automobile differential
CN105508552A (en) * 2016-01-28 2016-04-20 四川大学 Any-tooth-difference inner gear driven rolling pin roller block type automobile differential
CN205423738U (en) * 2016-03-16 2016-08-03 四川大学 Tooth -like automotive differential of internal gear driven pendulum

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107461474A (en) * 2017-09-15 2017-12-12 四川大学 Three tooth difference plane steel balls are driven retainer drive-type automobile differential
CN107654607A (en) * 2017-09-15 2018-02-02 四川大学 Two-tooth difference plane steel ball is driven holder-type automobile differential
CN107477164A (en) * 2017-09-28 2017-12-15 四川大学 Two-tooth difference plane steel ball driven type automobile differential
CN107725721A (en) * 2017-10-09 2018-02-23 四川大学 Two-tooth difference plane steel ball is driven Central inner gear drive-type automobile differential

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