CN109578545A

CN109578545A - Automobile-used two-stage bipyramid tooth mechanical differential structure

Info

Publication number: CN109578545A
Application number: CN201910076673.8A
Authority: CN
Inventors: 赵晓东
Original assignee: Dalian Bilan Energy Saving and Environmental Protection Technology Co Ltd
Current assignee: Dalian Bilan Energy Saving and Environmental Protection Technology Co Ltd
Priority date: 2019-01-26
Filing date: 2019-01-26
Publication date: 2019-04-05

Abstract

The present invention is a kind of automobile-used two-stage bipyramid tooth mechanical differential structure, is related to a kind of automobile-used deceleration mechanism, including input shaft component one, input shaft component two, planet stent component, output shaft assembly one, output shaft assembly two.In deceleration mechanism operational process, the revolving speed of output shaft one and output shaft two is related to two rotational speed differences of motor, it is big with transmission ratio, the big advantage of output torque, two motor can be in high-speed cruising state always, in the state that two motor direction of rotation are constant, the output shaft one of the deceleration mechanism and the direction of rotation of output shaft two can be changed simultaneously, it drives electric car to realize to drive, parking, the function of reversing, the deceleration mechanism can ensure that motor is run under the higher working condition of efficiency, and the deceleration mechanism is accelerating and is changing electric automobile during traveling direction, response speed is improved when driving or move backward.The deceleration mechanism includes to coordinate the wheel differential of two sides vehicle wheel rotational speed.

Description

Automobile-used two-stage bipyramid tooth mechanical differential structure

Technical field

The present invention is a kind of automobile-used two-stage bipyramid tooth mechanical differential structure, is related to a kind of automobile-used deceleration mechanism, especially Be related to a kind of two motor of use drives speed difference acquisition slow-speed of revolution when a set of bipyramid tooth planetary reducer defeated jointly Out, and include wheel differential automobile-used two-stage bipyramid tooth mechanical differential structure.

Background technique

The problem of electric car urgent need to resolve is that course continuation mileage is short and moment of accelerating is insufficient at present.Electric car course continuation mileage Short disadvantage not only needs battery technology to have breakthrough, it is also desirable to be innovated in motor and deceleration field of mechanisms.In order to Increase motor power (output) under the premise of equal volume, the revolving speed of driving motor for electric automobile is very high, in order to match vehicle wheel rotational speed and increasing Add driving torque, electric car common configuration single-stage gearbox, automotive wheel rotation speed change range is very big, and electric car is caused to drive The output revolving speed of dynamic motor often works in the low engine speed range of low efficiency, and electric automobile during traveling is in congested in traffic municipal highway When, the short disadvantage of electric car course continuation mileage is especially apparent.Electric car common configuration single-stage gearbox, cause electric car from The slow-speed of revolution accelerates to that the high-revolving time is long, and motor controller output frequency is constant torque speed control mode below fundamental frequency, electricity Power when motivation high-speed cruising is greater than power when low speed is run, and bigger output torque is needed when electric car is climbed, this When motor low speed run, output power of motor decline, lead to motor output torque drop, this contradictory root not only exists In configuration single-stage gearbox, driving motor for electric automobile self character is lain also in.In the motion process of electric car, need frequently Acceleration, slow down, frequent starting stops, and even frequently changes the direction of rotation of its motor, these motion features make Motor is run under the lower working condition of efficiency.In addition, the driving device for being applied to automobile, which should configure, can coordinate a left side The wheel differential of right two sides vehicle wheel rotational speed.

The technical solution for having following characteristics is able to solve above-mentioned electric car problem, always works in efficiency in motor Under the premise of high high-speed state, deceleration mechanism output revolving speed is enable to be adjusted to high-speed state from stationary state, or even Turning to the output of deceleration mechanism can be from status adjustment be rotated in the forward direction to reverse rotation state.

If having the advantages that, a kind of deceleration mechanism is big with transmission ratio, output torque is big, and the motor drive deceleration mechanism connects Continuous rotation, and when keeping motor direction of rotation constant, deceleration mechanism driving electric car can be realized driving, parking, The function of reversing, then the deceleration mechanism can ensure that motor is run under the higher working condition of efficiency, and the speed reducer Structure is accelerating and is changing electric automobile during traveling direction, that is, drives or improve response speed when moving backward.If two motor can The output revolving speed and output power for adjusting motor simultaneously are keeping the speed difference of two motor drive deceleration mechanisms constant Under the premise of, while improving the output revolving speed i.e. raising simultaneously or reduction by two simultaneously for perhaps reducing by two motor simultaneously The output power of the motor drive deceleration mechanism, then the deceleration mechanism can be realized electric car tune when exporting same rotational speed The control requirement for motivation output power and the output torque of economizing on electricity.

Summary of the invention

The purpose of the present invention is overcome common electric automobile single-stage gearbox to cause course continuation mileage short and moment of accelerating deficiency The shortcomings that, provide it is a kind of have the advantages that transmission ratio is big, output torque is big, and while ensuring the motor drive deceleration mechanism, is high The automobile-used two-stage bipyramid tooth mechanical differential structure of efficiency operation, the deceleration mechanism include wheel differential.Embodiment party of the invention Case is as follows:

The deceleration mechanism includes input shaft component one, input shaft component two, planet stent component, output shaft assembly one, output Shaft member two.Input shaft component one includes input bevel gear one, input shaft one.Input shaft component two include input bevel gear two, Input shaft two.Planet stent component includes bevel planet gear two, axle sleeve four, planet axis, planet stent, axle sleeve three, planet cone tooth Wheel one, output shaft assembly one include output shaft one, bi-bevel gear one, axle sleeve one, output bevel gear wheel one, and output shaft assembly two includes Output bevel gear wheel two, bi-bevel gear two, axle sleeve two, output shaft two, or axle sleeve is replaced using bearing respectively in above-mentioned component One, axle sleeve two, axle sleeve three, axle sleeve four, the loading ability of bearing radial load and axial load.Input shaft component one and input shaft component Two are separately mounted to planet stent component radial outside, and output shaft assembly one and output shaft assembly two are separately mounted to planet stent Component axial ends.

The deceleration mechanism in use, input shaft one and the output shaft of motor one link together, input shaft two with The output shaft of motor two links together, and output shaft one links together with the semiaxis one for being equipped with right wheel, output shaft two It links together with the semiaxis two for being equipped with left wheel.

When the deceleration mechanism is run, controller one controls motor one and rotates, and controller one can adjust motor one Rotation speed.Controller two controls motor two and rotates, and controller two can adjust two rotation speed of motor.Motor one drives Driven input shaft one is rotated along one direction of rotation of input shaft, and motor two drives input shaft two to revolve along two direction of rotation of input shaft Turn.Motor one drives bi-bevel gear one around output shaft axis along bi-bevel gear by input shaft one, input bevel gear one The rotation of one direction of rotation, motor two drive bi-bevel gear two to surround output shaft axis by input shaft two, input bevel gear two It is rotated along two direction of rotation of bi-bevel gear, one direction of rotation of bi-bevel gear is opposite with two direction of rotation of bi-bevel gear.Motor When one rotation speed is equal with two rotation speed of motor, bevel planet gear one is at planet axis axis rotation, planet stent In stationary state, the revolving speed of output shaft one and output shaft two is zero.One rotation speed of motor and two rotation speed of motor are not When equal, for bevel planet gear one while surrounding the rotation of planet axis axis, bevel planet gear one can also surround output shaft axis Revolution, bevel planet gear one drive planet stent slow-speed of revolution rotation, and planet stent respectively drives output by bevel planet gear two Two slow-speed of revolution rotating Vortex of bevel gear one and output bevel gear wheel.When automobile turning, inboard wheel can generate bigger resistance, row For star bevel gear two while around the revolution of output shaft axis, bevel planet gear two can also surround the rotation of planet axis axis, cause Output bevel gear wheel one drives the rotation speed of right wheel and output bevel gear wheel two to pass through output shaft two and drives a left side by output shaft one The rotation speed of wheel is unequal, realizes the technical requirements for coordinating left and right sides vehicle wheel rotational speed.

Axle sleeve one, axle sleeve two, axle sleeve three, axle sleeve four are cylindrical, and it is axle sleeve axis hole that radial direction is intermediate, and axial one end is axis Cover the thrust shaft shoulder.Planet axis is cylindrical, and axial one end is planet axis positioning shaft shoulder.It is cone among bevel planet gear one is radial Gear shaft holes, radial outside are the gear teeth, and axial one end is gear front end face, and the axial other end is gear rear end face.Planet cone It is bevel gear axis hole among gear two is radial, radial outside is the gear teeth, and axial one end is gear front end face, and the axial other end is Gear rear end face.In a ring, planet stent radially inner side is rack bore to planet stent, if planet stent inner radial surface is uniformly distributed Dry bracket mounting plane, there is a bracket fixed shaft hole at each bracket mounting plane center.

Planet stent component is in assembly, respectively a bevel planet gear two, axle sleeve four, bevel planet gear one, axle sleeve Three are sequentially arranged in a planet axis, are mounted on axle sleeve four in the bevel gear axis hole of bevel planet gear two, and make axle sleeve four The axle sleeve thrust shaft shoulder and the gear rear end face contact of bevel planet gear two be installed together, make axle sleeve three be mounted on planet cone tooth In the bevel gear axis hole of wheel one, and the axle sleeve thrust shaft shoulder of axle sleeve three and the gear rear end face contact of bevel planet gear one are installed Together, it contacts the gear front end face of bevel planet gear two with the planet axis positioning shaft shoulder of planet axis to be installed together, then Several planet axis are separately mounted in the bracket fixed shaft hole of planet stent, planet axis, bevel planet gear two, axle sleeve are made Four, bevel planet gear one, axle sleeve three are located in the rack bore of planet stent, make the axle sleeve thrust shaft shoulder and planet branch of axle sleeve three The bracket mounting plane contact of frame is installed together, and enables bevel planet gear two and bevel planet gear one respectively around planet axis Axis rotation.

Input shaft one is cylindrical, and axial one end is input bevel gear one, inputs the gear front end face position of bevel gear one In the axially external one end of input shaft one.Input shaft two is cylindrical, and axial one end is input bevel gear two, inputs bevel gear two Gear front end face be located at the axially external one end of input shaft two.

It is bi-bevel gear axis hole one among bi-bevel gear one is radial, bi-bevel gear one is successively inside outward from radially inner side The gear teeth one, the outside gear teeth one, the inside gear teeth one, the outside gear teeth one are in axial the same side.It is interior among output bevel gear wheel one is radial Spline one, radial outside are the gear teeth, and axial one end is gear front end face, and the axial other end is gear rear end face.Output shaft one Cylindrical, axial left side one end is successively external splines one, axle journal one, the shaft shoulder one to the right.

Output shaft assembly one is mounted on axle sleeve one on the axle journal one of output shaft one in assembly, makes the axle sleeve of axle sleeve one The thrust shaft shoulder is contacted with the shaft shoulder one of output shaft one and is installed together, and the bi-bevel gear axis hole one of bi-bevel gear one is mounted on axis On set one, it is installed together bi-bevel gear one without one end of the outside gear teeth one and the axle sleeve thrust shaft shoulder grafting touching of axle sleeve one, The internal spline one of output bevel gear wheel one is mounted on the external splines one of output shaft one, the gear rear end face of output bevel gear wheel one is made It contacts and is installed together with one left end face of axle sleeve.

It is bi-bevel gear axis hole two among bi-bevel gear two is radial, bi-bevel gear two is successively inside outward from radially inner side The gear teeth two, the outside gear teeth two, the inside gear teeth two, the outside gear teeth two are in axial the same side.It is interior among output bevel gear wheel two is radial Spline two, radial outside are the gear teeth, and axial one end is gear front end face, and the axial other end is gear rear end face.Output shaft two Cylindrical, axial right side one end is successively external splines two, axle journal two, the shaft shoulder two to the left.

Output shaft assembly two is mounted on axle sleeve two on the axle journal two of output shaft two in assembly, makes the axle sleeve of axle sleeve two The thrust shaft shoulder is contacted with the shaft shoulder two of output shaft two and is installed together, and the bi-bevel gear axis hole two of bi-bevel gear two is mounted on axis On set two, it is installed together bi-bevel gear two without one end of the outside gear teeth two and the axle sleeve thrust shaft shoulder grafting touching of axle sleeve two, The internal spline two of output bevel gear wheel two is mounted on the external splines two of output shaft two, the gear rear end face of output bevel gear wheel two is made It contacts and is installed together with two right end face of axle sleeve.

After deceleration mechanism assembly, the bevel planet gear one of planet stent component on the right side of axial direction with output shaft assembly one The inside gear teeth one of bi-bevel gear one engage, the bevel planet gear one of planet stent component is on the left of axial direction and output shaft assembly The inside gear teeth two of two bi-bevel gear two engage.The bevel planet gear two of planet stent component is on the right side of axial direction and output shaft The output bevel gear wheel one of part one engages, and the bevel planet gear two of planet stent component is defeated with output shaft assembly two on the left of axial direction Bevel gear two engages out.

Input shaft component one is mounted on the radial outside of planet stent component, also, input shaft component one is mounted on bipyramid Position between two axial direction of gear one and bi-bevel gear, the input bevel gear one of input shaft component one and pair of output shaft assembly one The outside gear teeth one of bevel gear one engage, and input shaft component two is mounted on the radial outside of planet stent component, also, input shaft Component two is mounted on the position between two axial direction of bi-bevel gear one and bi-bevel gear, the input bevel gear two of input shaft component two with The outside gear teeth two of the bi-bevel gear two of output shaft assembly two engage.

Bi-bevel gear two, bevel planet gear one, planet axis, planet stent, the bi-bevel gear one of the deceleration mechanism form Bipyramid tooth planetary reducer, the driving link of bipyramid tooth planetary reducer is first is that bi-bevel gear one, driving link is second is that double Bevel gear two, driven member are planet stents.Bipyramid tooth planetary reducer does deceleration transmission.One direction of rotation of bi-bevel gear with Two direction of rotation of bi-bevel gear is opposite.When one rotation speed of bi-bevel gear is equal with two rotation speed of bi-bevel gear, planet bores tooth Wheel one surrounds the rotation of planet axis axis, and planet stent remains static.One rotation speed of bi-bevel gear and bi-bevel gear two are revolved When rotary speed is unequal, while surrounding the rotation of planet axis axis, bevel planet gear one can also surround defeated bevel planet gear one The revolution of shaft axis, bevel planet gear one drive planet stent slow-speed of revolution rotation, and planet stent rotation speed is equal to bi-bevel gear The absolute value of the difference of one rotation speed and two rotation speed of bi-bevel gear.If one rotation speed of bi-bevel gear is greater than bi-bevel gear two Rotation speed, planet stent direction of rotation are identical as one direction of rotation of bi-bevel gear.If two rotation speed of bi-bevel gear is greater than double One rotation speed of bevel gear, planet stent direction of rotation are identical as two direction of rotation of bi-bevel gear.

Output bevel gear wheel two, bevel planet gear two, planet axis, planet stent, the output bevel gear wheel one of the deceleration mechanism Wheel differential is formed, wheel differential driving link is planet stent, and driven member is an output bevel gear wheel one, and driven member is two defeated Bevel gear two out.When one rotation speed of bi-bevel gear and two rotation speed of bi-bevel gear are unequal, the driving row of bevel planet gear one Prong frame slow-speed of revolution rotation, planet stent respectively drives output bevel gear wheel one by bevel planet gear two and output bevel gear wheel two is low Revolving speed rotating Vortex.When automobile turning, inboard wheel can generate bigger resistance, and bevel planet gear two is surrounding output shaft axis While line revolves, bevel planet gear two can also surround the rotation of planet axis axis, and output bevel gear wheel one is caused to pass through output shaft one The rotation speed of right wheel is driven to drive the rotation speed of left wheel unequal by output shaft two with output bevel gear wheel two, outside Vehicle wheel rotational speeds are faster than inboard wheel rotation speed, it is ensured that automobile can smoothly turn.

The bi-bevel gear one of the input bevel gear one and output shaft assembly one of the input shaft component one of the deceleration mechanism The outside gear teeth one form a first order retarder, the bipyramid of the input bevel gear two and output shaft assembly two of input shaft component two The outside gear teeth two of gear two form another first order retarder, and bipyramid tooth planetary reducer is the deceleration mechanism Second level retarder.

Bi-bevel gear two is replaced according to B-mode bi-bevel gear two, input shaft component two is made to be mounted on B-mode bi-bevel gear two Axial left side, form B-mode automobile-used two-stage bipyramid tooth mechanical differential structure, input shaft component two and one edge of input shaft component Output shaft axis space interference will not occur when axially aligning installation.

It is B-mode bi-bevel gear axis hole two among B-mode bi-bevel gear two is radial, the axial ends of radial outside is respectively The B-mode inside gear teeth two, the B-mode outside gear teeth two, and the B-mode inside gear teeth two are located at B-mode two radially inner side of the outside gear teeth.Second Type bi-bevel gear two is mounted on the B-mode bi-bevel gear axis hole two of B-mode bi-bevel gear two on axle sleeve two in assembly, makes second Type bi-bevel gear two has one end of the B-mode outside gear teeth two and the axle sleeve thrust shaft shoulder grafting touching of axle sleeve two to be installed together.Planet branch The bevel planet gear one of frame component engages on the left of axial direction with the B-mode inside gear teeth two of B-mode bi-bevel gear two.Input shaft component Two input bevel gear two engages with the B-mode outside gear teeth two of B-mode bi-bevel gear two.

Deceleration mechanism operational process is:

When the deceleration mechanism starts, controller one controls one slow-speed of revolution of motor starting, and is gradually increased one turn of motor Speed, at the same time, controller two control two slow-speed of revolution of motor starting, and two revolving speed of motor, motor one is gradually increased Bi-bevel gear one is driven to revolve around output shaft axis along one direction of rotation of bi-bevel gear by input shaft one, input bevel gear one Turn, motor two drives bi-bevel gear two around output shaft axis along bi-bevel gear by input shaft two, input bevel gear two The rotation of two direction of rotation, one direction of rotation of bi-bevel gear are opposite with two direction of rotation of bi-bevel gear.One rotation speed of motor with When two rotation speed of motor is equal, bevel planet gear one surrounds the rotation of planet axis axis, and planet stent remains static, defeated The revolving speed of shaft one and output shaft two is zero, and automobile stops traveling.

If one rotation speed of motor is greater than two rotation speed of motor, bi-bevel gear one drives bevel planet gear one to enclose It is greater than bi-bevel gear two along the rotation speed of one direction of rotation of bevel planet gear around planet axis axis and drives bevel planet gear one Around planet axis axis along the rotation speed of one direction of rotation of bevel planet gear, in order to offset the speed difference, bevel planet gear One can also revolve around output shaft axis, and bevel planet gear one drives planet stent slow-speed of revolution rotation, and planet stent rotates linear speed Degree is equal to the difference of two linear velocity of one linear velocity of bi-bevel gear and bi-bevel gear.Planet stent direction of rotation and bipyramid tooth It is identical to take turns a direction of rotation, planet stent respectively drives output bevel gear wheel one by bevel planet gear two and output bevel gear wheel two is low Revolving speed rotating Vortex, automobile move forward.

If two rotation speed of motor is greater than one rotation speed of motor, bi-bevel gear two drives bevel planet gear one to enclose It is greater than bi-bevel gear one along the rotation speed of one direction of rotation of bevel planet gear around planet axis axis and drives bevel planet gear one Around planet axis axis along the rotation speed of one direction of rotation of bevel planet gear, in order to offset the speed difference, bevel planet gear One can also revolve around output shaft axis, and bevel planet gear one drives planet stent slow-speed of revolution rotation, and planet stent rotates linear speed Degree is equal to the difference of one linear velocity of two linear velocity of bi-bevel gear and bi-bevel gear.Planet stent direction of rotation and bipyramid tooth It is identical to take turns two direction of rotation, planet stent respectively drives output bevel gear wheel one by bevel planet gear two and output bevel gear wheel two is low Revolving speed rotating Vortex, automobile travel backward.

One rotation speed of motor and two rotation speed of motor it is unequal when, planet stent by bevel planet gear two, Output bevel gear wheel one drives one slow-speed of revolution rotating Vortex of output shaft, meanwhile, planet stent passes through bevel planet gear two, output bevel gear Two driving two slow-speed of revolution rotating Vortex of output shaft of wheel.When automobile turning, inboard wheel can generate bigger resistance, and planet bores tooth For wheel two while around the revolution of output shaft axis, bevel planet gear two can also surround the rotation of planet axis axis.If automobile is to the left Side turning, one angular velocity of rotation of output bevel gear wheel are greater than planet stent angular velocity of rotation, meanwhile, output bevel gear wheel two rotation angles speed Degree is less than planet stent angular velocity of rotation.If automobile is turned to the right, two angular velocity of rotation of output bevel gear wheel is greater than planet stent Angular velocity of rotation, meanwhile, one angular velocity of rotation of output bevel gear wheel is less than planet stent angular velocity of rotation.Lead to output bevel gear wheel one The rotation speed for driving the rotation speed of right wheel and output bevel gear wheel two to pass through the driving left wheel of output shaft two by output shaft one Spend unequal, outboard wheels rotation speed is faster than inboard wheel rotation speed, it is ensured that automobile can smoothly turn.

In deceleration mechanism operational process, the rotational speed difference phase of the revolving speed of output shaft one and output shaft two and two motor It closes, has the advantages that transmission ratio is big, output torque is big, two motor can be in high-speed cruising state always, in two electricity In the state that motivation direction of rotation is constant, the output shaft one of the deceleration mechanism and the rotation side of output shaft two can be changed simultaneously To driving electric car realizes that the function of driving, stop, move backward, the deceleration mechanism can ensure that motor is higher in efficiency Working condition under run, and the deceleration mechanism accelerate and change electric automobile during traveling direction, that is, drive or move backward when Improve response speed.The deceleration mechanism includes to coordinate the wheel differential of two sides vehicle wheel rotational speed.

Detailed description of the invention

Fig. 1 is the axonometric drawing of the deceleration mechanism.

Fig. 2 is the isometric cutaway view of the deceleration mechanism.

Fig. 3 is the isometric cutaway view of planet stent component.

Fig. 4 is the axonometric drawing of planet stent.

Fig. 5 is the axis surveys view of planet axis.

Fig. 6 is the axonometric drawing of axle sleeve one or axle sleeve two or axle sleeve three or axle sleeve four.

Fig. 7 is the axonometric drawing of bevel planet gear one or bevel planet gear two.

Fig. 8 is the axonometric drawing of input shaft component one or input shaft component two.

Fig. 9 is the isometric cutaway view of output shaft assembly one.

Figure 10 is the isometric cutaway view of bi-bevel gear one.

Figure 11 is the axonometric drawing of output bevel gear wheel one.

Figure 12 is the axonometric drawing of output shaft one.

Figure 13 is the isometric cutaway view of output shaft assembly two.

Figure 14 is the isometric cutaway view of bi-bevel gear two.

Figure 15 is the axonometric drawing of output bevel gear wheel two.

Figure 16 is the axonometric drawing of output shaft two.

Figure 17 is that the deceleration mechanism runs slowly the schematic diagram of process.U I is greater than U II in figure, then U III and I side of rotation U To identical.

Figure 18 is the schematic diagram that wheel differential operational process is coordinated by the deceleration mechanism.U V is greater than U VI in figure.

Figure 19 is the deceleration mechanism along axis cut-away illustration.

Figure 20 is B-mode automobile-used two-stage bipyramid tooth mechanical differential structure along axis cut-away illustration.

Figure 21 is the axonometric drawing of B-mode automobile-used two-stage bipyramid tooth mechanical differential structure.

Figure 22 is the isometric cutaway view of B-mode bi-bevel gear two.

U I is the linear velocity of bi-bevel gear one division circle position rotation in figure, and U II is the rotation of two reference circle position of bi-bevel gear The linear velocity turned, U III be it is equal with bi-bevel gear one division radius of circle on planet stent or with two reference circle of bi-bevel gear half The linear velocity of the equal position rotation of diameter.U IV is the angular speed of planet stent rotation, and U V is the angle that output bevel gear wheel one rotates Speed, U VI are the angular speed that output bevel gear wheel two rotates.

Be labeled in figure input bevel gear 21, input shaft 22, input bevel gear 1, input shaft 1, output shaft 1, Bi-bevel gear 1, axle sleeve 1, output bevel gear wheel 1, bevel planet gear 29, axle sleeve 4 10, planet axis 11, planet stent 12, Axle sleeve 3 13, bevel planet gear 1, output bevel gear wheel 2 15, bi-bevel gear 2 16, axle sleeve 2 17, output shaft 2 18, bracket Mounting plane 19, rack bore 20, bracket fixed shaft hole 21, planet axis positioning shaft shoulder 22, the axle sleeve thrust shaft shoulder 23, axle sleeve axis hole 24, bevel gear axis hole 25, gear rear end face 26, one direction of rotation 27 of input shaft, two direction of rotation 28 of input shaft, bi-bevel gear axis Hole 1, the inside gear teeth 1, the outside gear teeth 1, internal spline 1, external splines 1, axle journal 1, the shaft shoulder 1, bipyramid Gear shaft holes 2 36, the outside gear teeth 2 37, the inside gear teeth 2 38, internal spline 2 39, the shaft shoulder 2 40, axle journal 2 41, external splines two 42, planet stent direction of rotation 43, planet stent rotational trajectory 44, two rotational trajectory 45 of bi-bevel gear, bi-bevel gear two rotate Direction 46, output shaft axis 47, one direction of rotation 48 of bevel planet gear, planet axis axis 49, one rotational trajectory of bevel planet gear 50, one rotational trajectory 51 of bi-bevel gear, one direction of rotation 52 of bi-bevel gear, two rotational trajectory 53 of output bevel gear wheel, output bevel gear Take turns two direction of rotation 54, two direction of rotation 55 of bevel planet gear, two rotational trajectory 56 of bevel planet gear, the rotation of output bevel gear wheel one Track 57, one direction of rotation 58 of output bevel gear wheel, B-mode bi-bevel gear 2 59, B-mode bi-bevel gear axis hole 2 60, B-mode inside The gear teeth 2 61, the B-mode outside gear teeth 2 62.

Specific embodiment

The present invention is further discussed below with reference to the accompanying drawing.

Referring to Fig.1, Fig. 2, Figure 19, the deceleration mechanism include input shaft component one, input shaft component two, planet stent portion Part, output shaft assembly one, output shaft assembly two.Input shaft component one includes input bevel gear 1, input shaft 1.Input axle portion Part two includes input bevel gear 21, input shaft 22.Planet stent component includes bevel planet gear 29, axle sleeve 4 10, planet axis 11, planet stent 12, axle sleeve 3 13, bevel planet gear 1, output shaft assembly one include output shaft 1, bi-bevel gear 1, Axle sleeve 1, output bevel gear wheel 1, output shaft assembly two includes output bevel gear wheel 2 15, bi-bevel gear 2 16, axle sleeve 2 17, defeated Shaft 2 18, or axle sleeve 1, axle sleeve 2 17, axle sleeve 3 13, axle sleeve 4 10 are replaced using bearing respectively in above-mentioned component, The loading ability of bearing radial load and axial load.Input shaft component one and input shaft component two are separately mounted to planet stent component Radial outside, output shaft assembly one and output shaft assembly two are separately mounted to planet stent component axial ends.

The deceleration mechanism is in use, input shaft 1 and the output shaft of motor one link together, input shaft 22 It links together with the output shaft of motor two, output shaft 1 links together with the semiaxis one for being equipped with right wheel, output shaft 2 18 link together with the semiaxis two for being equipped with left wheel.

When the deceleration mechanism is run, controller one controls motor one and rotates, and controller one can adjust motor one Rotation speed.Controller two controls motor two and rotates, and controller two can adjust two rotation speed of motor.Motor one drives Driven input shaft 1 is rotated along one direction of rotation 27 of input shaft, and motor two drives input shaft 22 along two side of rotation of input shaft To 28 rotations.Motor one drives bi-bevel gear 1 to surround 47 edge of output shaft axis by input shaft 1, input bevel gear 1 One direction of rotation 52 of bi-bevel gear rotation, motor two by input shaft 22, input bevel gear 21 drive bi-bevel gear two 16 rotate around output shaft axis 47 along two direction of rotation 46 of bi-bevel gear, one direction of rotation 52 of bi-bevel gear and bi-bevel gear Two direction of rotation 46 are opposite.When one rotation speed of motor is equal with two rotation speed of motor, bevel planet gear 1 is surrounded 49 rotation of planet axis axis, planet stent 12 remain static, and the revolving speed of output shaft 1 and output shaft 2 18 is zero.It is electronic When one rotation speed of machine and two rotation speed of motor are unequal, bevel planet gear 1 is around 49 rotation of planet axis axis Meanwhile bevel planet gear 1 can also revolve around output shaft axis 47, bevel planet gear 1 drives 12 low turns of planet stent Speed rotation, planet stent 12 respectively drive 2 15 slow-speed of revolution of output bevel gear wheel 1 and output bevel gear wheel by bevel planet gear 29 Rotating Vortex.When automobile turning, inboard wheel can generate bigger resistance, and bevel planet gear 29 is surrounding output shaft axis 47 While revolution, bevel planet gear 29 can also surround 49 rotation of planet axis axis, and output bevel gear wheel 1 is caused to pass through output shaft The rotation speeds of the one 5 right wheels of driving and output bevel gear wheel 2 15 pass through the rotation speed of the driving left wheel of output shaft 2 18 not phase Deng the technical requirements of realization coordination left and right sides vehicle wheel rotational speed.

Referring to figs. 1 to Figure 18, Figure 22, axle sleeve 1, axle sleeve 2 17, axle sleeve 3 13, axle sleeve 4 10 are cylindrical, radial direction Centre is axle sleeve axis hole 24, and axial one end is the axle sleeve thrust shaft shoulder 23.Planet axis 11 is cylindrical, and axial one end is planet axis Positioning shaft shoulder 22.It is bevel gear axis hole 25 among bevel planet gear 1 is radial, radial outside is the gear teeth, and axial one end is tooth Front end face is taken turns, the axial other end is gear rear end face 26.It is bevel gear axis hole 25 among bevel planet gear 29 is radial, diameter is outside Side is the gear teeth, and axial one end is gear front end face, and the axial other end is gear rear end face 26.Planet stent 12 in a ring, is gone 12 radially inner side of prong frame is rack bore 20, and 12 inner radial surface of planet stent is evenly distributed with several bracket mounting planes 19, often There is a bracket fixed shaft hole 21 at one 19 center of bracket mounting plane.

Planet stent component assembly when, respectively a bevel planet gear 29, axle sleeve 4 10, bevel planet gear 1, Axle sleeve 3 13 is sequentially arranged in a planet axis 11, and axle sleeve 4 10 is made to be mounted on the bevel gear axis hole 25 of bevel planet gear 29 In, and contact the axle sleeve thrust shaft shoulder 23 of axle sleeve 4 10 with the gear rear end face 26 of bevel planet gear 29 and be installed together, make Axle sleeve 3 13 is mounted in the bevel gear axis hole 25 of bevel planet gear 1, and makes the axle sleeve thrust shaft shoulder 23 and row of axle sleeve 3 13 The contact of gear rear end face 26 of star bevel gear 1 is installed together, and makes the gear front end face and planet axis of bevel planet gear 29 11 contact of planet axis positioning shaft shoulder 22 is installed together, several planet axis 11 are then separately mounted to planet stent 12 In bracket fixed shaft hole 21, make planet axis 11, bevel planet gear 29, axle sleeve 4 10, bevel planet gear 1,3 13, axle sleeve In the rack bore 20 of planet stent 12, keep the bracket installation of the axle sleeve thrust shaft shoulder 23 and planet stent 12 of axle sleeve 3 13 flat The contact of face 19 is installed together, and bevel planet gear 29 and bevel planet gear 1 is enable to revolve respectively around planet axis axis 49 Turn.

Input shaft 1 is cylindrical, and axial one end is input bevel gear 1, inputs the gear front end face of bevel gear 1 Positioned at the axially external one end of input shaft 1.Input shaft 22 is cylindrical, and axial one end is input bevel gear 21, input cone The gear front end face of gear 21 is located at the axially external one end of input shaft 22.

It is bi-bevel gear axis hole 1 among bi-bevel gear 1 is radial, bi-bevel gear 1 is successively outward from radially inner side The inside gear teeth 1, the outside gear teeth 1, the inside gear teeth 1, the outside gear teeth 1 are in axial the same side.Output bevel gear wheel 1 Radial intermediate is internal spline 1, and radial outside is the gear teeth, and axial one end is gear front end face, after the axial other end is gear End face 26.Output shaft 1 is cylindrical, and axial left side one end is successively external splines 1, axle journal 1, the shaft shoulder one to the right 35。

Output shaft assembly one is mounted on axle sleeve 1 on the axle journal 1 of output shaft 1 in assembly, makes axle sleeve 1 The axle sleeve thrust shaft shoulder 23 is contacted with the shaft shoulder 1 of output shaft 1 and is installed together, the bi-bevel gear axis hole of bi-bevel gear 1 One 29 are mounted on axle sleeve 1, make bi-bevel gear 1 without one end of the outside gear teeth 1 and the axle sleeve thrust shaft of axle sleeve 1 The contact of shoulder 23 is installed together, and the internal spline 1 of output bevel gear wheel 1 is mounted on the external splines 1 of output shaft 1, The gear rear end face 26 of output bevel gear wheel 1 is contacted with one 7 left end face of axle sleeve to be installed together.

Bi-bevel gear 2 16 it is radial it is intermediate be bi-bevel gear axis hole 2 36, bi-bevel gear 2 16 from radially inner side outward successively It is the inside gear teeth 2 38, the outside gear teeth 2 37, the inside gear teeth 2 38, the outside gear teeth 2 37 are in axial the same side.Output bevel gear wheel Intermediate 2 15 radial directions are internal splines 2 39, and radial outside is the gear teeth, and axial one end is gear front end face, and the axial other end is tooth Take turns rear end face 26.Output shaft 2 18 is cylindrical, and axial right side one end is successively external splines 2 42, axle journal 2 41, axis to the left Shoulder 2 40.

Output shaft assembly two is mounted on axle sleeve 2 17 on the axle journal 2 41 of output shaft 2 18 in assembly, makes axle sleeve two The 17 axle sleeve thrust shaft shoulder 23 is contacted with the shaft shoulder 2 40 of output shaft 2 18 to be installed together, the bipyramid tooth of bi-bevel gear 2 16 Axle hole 2 36 is mounted on axle sleeve 2 17, makes bi-bevel gear 2 16 without one end of the outside gear teeth 2 37 and the axis of axle sleeve 2 17 The set contact of the thrust shaft shoulder 23 is installed together, and the internal spline 2 39 of output bevel gear wheel 2 15 is mounted on the outer flower of output shaft 2 18 On key 2 42, contacts the gear rear end face 26 of output bevel gear wheel 2 15 with 2 17 right end face of axle sleeve and be installed together.

After deceleration mechanism assembly, the bevel planet gear 1 of planet stent component is on the right side of axial direction and output shaft assembly The inside gear teeth 1 of one bi-bevel gear 1 engage, the bevel planet gear 1 of planet stent component on the left of axial direction with it is defeated The inside gear teeth 2 38 of the bi-bevel gear 2 16 of shaft member two engage out.The bevel planet gear 29 of planet stent component is in axial direction Right side is engaged with the output bevel gear wheel 1 of output shaft assembly one, the bevel planet gear 29 of planet stent component on the left of axial direction with The output bevel gear wheel 2 15 of output shaft assembly two engages.

Input shaft component one is mounted on the radial outside of planet stent component, also, input shaft component one is mounted on bipyramid Position between 2 16 axial direction of gear 1 and bi-bevel gear, the input bevel gear 1 of input shaft component one and output shaft assembly one The outside gear teeth 1 of bi-bevel gear 1 engage, input shaft component two is mounted on the radial outside of planet stent component, and And input shaft component two is mounted on the position between 2 16 axial direction of bi-bevel gear 1 and bi-bevel gear, input shaft component two it is defeated Enter bevel gear 21 to engage with the outside gear teeth 2 37 of the bi-bevel gear 2 16 of output shaft assembly two.

The bi-bevel gear 2 16 of the deceleration mechanism, bevel planet gear 1, planet axis 11, planet stent 12, bipyramid tooth One 6 composition bipyramid tooth planetary reducers are taken turns, the driving link of bipyramid tooth planetary reducer is first is that bi-bevel gear 1, main Moving part is second is that bi-bevel gear 2 16, driven member are planet stents 12.Bipyramid tooth planetary reducer does deceleration transmission.Bipyramid tooth It is opposite with two direction of rotation 46 of bi-bevel gear to take turns a direction of rotation 52.One 6 rotation speed of bi-bevel gear and bi-bevel gear 2 16 are revolved When rotary speed is equal, bevel planet gear 1 surrounds 49 rotation of planet axis axis, and planet stent 12 remains static.Bipyramid tooth When taking turns one 6 rotation speeds and unequal 2 16 rotation speed of bi-bevel gear, bevel planet gear 1 is surrounding planet axis axis 49 While rotation, bevel planet gear 1 can also revolve around output shaft axis 47, and bevel planet gear 1 drives planet stent 12 slow-speed of revolution rotation, 12 rotation speed of planet stent are equal to one 6 rotation speed of bi-bevel gear and 2 16 rotation speed of bi-bevel gear Absolute value of the difference.If one 6 rotation speed of bi-bevel gear is greater than 2 16 rotation speed of bi-bevel gear, planet stent direction of rotation 43 It is identical as one direction of rotation 52 of bi-bevel gear.If 2 16 rotation speed of bi-bevel gear is greater than one 6 rotation speed of bi-bevel gear, planet Bracket direction of rotation 43 is identical as two direction of rotation 46 of bi-bevel gear.

Output bevel gear wheel 2 15, bevel planet gear 29, planet axis 11, planet stent 12, the output cone of the deceleration mechanism Gear 1 forms wheel differential, and wheel differential driving link is planet stent 12, and driven member is an output bevel gear wheel 1, from Moving part is two output bevel gear wheels 2 15.When one 6 rotation speed of bi-bevel gear and 2 16 rotation speed of bi-bevel gear are unequal, planet Bevel gear 1 drives 12 slow-speed of revolution of planet stent rotation, and planet stent 12 respectively drives output cone by bevel planet gear 29 2 15 slow-speed of revolution rotating Vortex of gear 1 and output bevel gear wheel.When automobile turning, inboard wheel can generate bigger resistance, row For star bevel gear 29 while revolving around output shaft axis 47, bevel planet gear 29 can also be around planet axis axis 49 certainly Turn, output bevel gear wheel 1 is caused to drive the rotation speed of right wheel and output bevel gear wheel 2 15 to pass through output by output shaft 1 Axis 2 18 drives the rotation speed of left wheel unequal, and outboard wheels rotation speed is faster than inboard wheel rotation speed, it is ensured that vapour Vehicle can smoothly turn.

The bi-bevel gear 1 of the input bevel gear 1 and output shaft assembly one of the input shaft component one of the deceleration mechanism The outside gear teeth 1 form a first order retarder, the input bevel gear 21 of input shaft component two and output shaft assembly two Bi-bevel gear 2 16 the outside gear teeth 2 37 form another first order retarder, bipyramid tooth planetary reducer is described The second level retarder of deceleration mechanism.

Bi-bevel gear 2 16 is replaced according to B-mode bi-bevel gear 2 59, input shaft component two is made to be mounted on B-mode bipyramid tooth The axial left side for taking turns 2 59 forms B-mode automobile-used two-stage bipyramid tooth mechanical differential structure, input shaft component two and input axle portion When axially aligning installation along output shaft axis 47 space interference will not occur for part one.

It is B-mode bi-bevel gear axis hole 2 60, the axial ends point of radial outside among B-mode bi-bevel gear 2 59 is radial It is not the B-mode inside gear teeth 2 61, the B-mode outside gear teeth 2 62, and the B-mode inside gear teeth 2 61 are located at the B-mode outside gear teeth two 62 radially inner sides.B-mode bi-bevel gear 2 59 is in assembly, the B-mode bi-bevel gear axis hole 2 60 of B-mode bi-bevel gear 2 59 It is mounted on axle sleeve 2 17, B-mode bi-bevel gear 2 59 is made to have one end of the B-mode outside gear teeth 2 62 and the axle sleeve of axle sleeve 2 17 to stop The contact of push shaft shoulder 23 is installed together.The bevel planet gear 1 of planet stent component on the left of axial direction with B-mode bi-bevel gear two The 59 B-mode inside gear teeth 2 61 engagement.The input bevel gear 21 of input shaft component two is B-mode with B-mode bi-bevel gear 2 59 The outside gear teeth 2 62 engage.

Referring to Fig.1, to Figure 21, deceleration mechanism operational process is by Fig. 2, Figure 19:

When the deceleration mechanism starts, controller one controls one slow-speed of revolution of motor starting, and is gradually increased one turn of motor Speed, at the same time, controller two control two slow-speed of revolution of motor starting, and two revolving speed of motor, motor one is gradually increased Bi-bevel gear 1 is driven to rotate around output shaft axis 47 along bi-bevel gear one by input shaft 1, input bevel gear 1 Direction 52 rotates, and motor two drives bi-bevel gear 2 16 to surround output shaft axis by input shaft 22, input bevel gear 21 47 rotate along two direction of rotation 46 of bi-bevel gear, one direction of rotation 52 of bi-bevel gear and two direction of rotation of bi-bevel gear, 46 phase Instead.When one rotation speed of motor is equal with two rotation speed of motor, bevel planet gear 1 surrounds planet axis axis 49 certainly Turn, planet stent 12 remains static, and the revolving speed of output shaft 1 and output shaft 2 18 is zero, and automobile stops traveling.

If one rotation speed of motor is greater than two rotation speed of motor, bi-bevel gear 1 drives bevel planet gear one 14 are greater than the driving row of bi-bevel gear 2 16 along the rotation speed of one direction of rotation 48 of bevel planet gear around planet axis axis 49 Star bevel gear 1 surrounds planet axis axis 49 along the rotation speed of one direction of rotation 48 of bevel planet gear, in order to offset the speed It is poor to spend, and bevel planet gear 1 can also revolve around output shaft axis 47, and bevel planet gear 1 drives 12 low turns of planet stent Speed rotation, 12 linear velocity of planet stent are equal to one 6 linear velocity of bi-bevel gear and 2 16 linear velocity of bi-bevel gear Difference.Planet stent direction of rotation 43 is identical as one direction of rotation 52 of bi-bevel gear, and planet stent 12 passes through bevel planet gear 29 2 15 slow-speed of revolution rotating Vortex of output bevel gear wheel 1 and output bevel gear wheel is respectively driven, automobile moves forward.

If two rotation speed of motor is greater than one rotation speed of motor, bi-bevel gear 2 16 drives bevel planet gear one 14, which are greater than bi-bevel gear 1 along the rotation speed of one direction of rotation 48 of bevel planet gear around planet axis axis 49, drives planet Bevel gear 1 surrounds planet axis axis 49 along the rotation speed of one direction of rotation 48 of bevel planet gear, in order to offset the speed Difference, bevel planet gear 1 can also revolve around output shaft axis 47, and bevel planet gear 1 drives 12 slow-speed of revolution of planet stent Rotation, 12 linear velocity of planet stent be equal to 2 16 linear velocity of bi-bevel gear and one 6 linear velocity of bi-bevel gear it Difference.Planet stent direction of rotation 43 is identical as two direction of rotation 46 of bi-bevel gear, and planet stent 12 passes through 29 points of bevel planet gear Not Qu Dong 2 15 slow-speed of revolution rotating Vortex of output bevel gear wheel 1 and output bevel gear wheel, automobile travels backward.

When one rotation speed of motor and two rotation speed of motor are unequal, planet stent 12 passes through bevel planet gear two 9, output bevel gear wheel 1 drive one 5 slow-speed of revolution rotating Vortex of output shaft, meanwhile, planet stent 12 by bevel planet gear 29, Output bevel gear wheel 2 15 drives 2 18 slow-speed of revolution rotating Vortex of output shaft.When automobile turning, inboard wheel can generate bigger resistance Power, for bevel planet gear 29 while revolving around output shaft axis 47, bevel planet gear 29 can also surround planet axis axis 49 rotations.If automobile is turned to the left, one 8 angular velocity of rotation of output bevel gear wheel is greater than 12 angular velocity of rotation of planet stent, meanwhile, 2 15 angular velocity of rotation of output bevel gear wheel is less than 12 angular velocity of rotation of planet stent.If automobile is turned to the right, output bevel gear wheel 2 15 angular velocity of rotations are greater than 12 angular velocity of rotation of planet stent, meanwhile, one 8 angular velocity of rotation of output bevel gear wheel is less than planet branch 12 angular velocity of rotation of frame.Output bevel gear wheel 1 is caused to drive the rotation speed and output bevel gear wheel of right wheel by output shaft 1 2 15 drive the rotation speed of left wheel unequal by output shaft 2 18, and outboard wheels rotation speed rotates speed than inboard wheel Degree is fast, it is ensured that automobile can smoothly turn.

In deceleration mechanism operational process, the revolving speed of the revolving speed and two motor of output shaft 1 and output shaft 2 18 It is poor related, have the advantages that transmission ratio is big, output torque is big, two motor can be in high-speed cruising state always, two In the state that a motor direction of rotation is constant, the output shaft 1 and output shaft 2 18 of the deceleration mechanism can be changed simultaneously Direction of rotation, driving electric car realize drive, the function of parking, reversing, the deceleration mechanism can ensure that motor exists Run under the higher working condition of efficiency, and the deceleration mechanism accelerate and change electric automobile during traveling direction, that is, drive or Person improves response speed when moving backward.The deceleration mechanism includes to coordinate the wheel differential of two sides vehicle wheel rotational speed.

Claims

1. a kind of automobile-used two-stage bipyramid tooth mechanical differential structure, it is characterised in that: the deceleration mechanism include input shaft component one, Input shaft component two, planet stent component, output shaft assembly one, output shaft assembly two；Input shaft component one includes input cone tooth Take turns one (3), input shaft one (4)；Input shaft component two includes input bevel gear two (1), input shaft two (2)；Planet stent component Including bevel planet gear two (9), axle sleeve four (10), planet axis (11), planet stent (12), axle sleeve three (13), bevel planet gear One (14), output shaft assembly one includes output shaft one (5), bi-bevel gear one (6), axle sleeve one (7), output bevel gear wheel one (8), defeated Shaft member two includes output bevel gear wheel two (15), bi-bevel gear two (16), axle sleeve two (17), output shaft two (18), Huo Zhe out Axle sleeve one (7), axle sleeve two (17), axle sleeve three (13), axle sleeve four (10) are replaced using bearing respectively in above-mentioned component, which holds Carry radial load and axial load；It is outside that input shaft component one and input shaft component two are separately mounted to planet stent component diameter Side, output shaft assembly one and output shaft assembly two are separately mounted to planet stent component axial ends；

The deceleration mechanism is in use, input shaft one (4) and the output shaft of motor one link together, input shaft two (2) It links together with the output shaft of motor two, output shaft one (5) links together with the semiaxis one for being equipped with right wheel, output Axis two (18) links together with the semiaxis two for being equipped with left wheel；

When the deceleration mechanism is run, controller one controls motor one and rotates, and controller one can adjust the rotation of motor one Speed；Controller two controls motor two and rotates, and controller two can adjust two rotation speed of motor；Motor one drives defeated Enter axis one (4) to rotate along one direction of rotation of input shaft (27), motor two drives input shaft two (2) to rotate along input shaft two Direction (28) rotation；Motor one is by input shaft one (4), input bevel gear one (3) driving bi-bevel gear one (6) around output Axis axis (47) is rotated along one direction of rotation of bi-bevel gear (52), and motor two passes through input shaft two (2), input bevel gear two (1) driving bi-bevel gear two (16) is rotated around output shaft axis (47) along two direction of rotation of bi-bevel gear (46), bipyramid tooth It is opposite with bi-bevel gear two direction of rotation (46) to take turns a direction of rotation (52)；One rotation speed of motor and motor two rotate speed When spending equal, bevel planet gear one (14) surrounds planet axis axis (49) rotation, and planet stent (12) remains static, and exports The revolving speed of axis one (5) and output shaft two (18) is zero；When one rotation speed of motor and two rotation speed of motor are unequal, row For star bevel gear one (14) while surrounding planet axis axis (49) rotation, bevel planet gear one (14) can also surround output shaft axis Line (47) revolution, bevel planet gear one (14) drive planet stent (12) slow-speed of revolution rotation, and planet stent (12) is bored by planet Gear two (9) respectively drives output bevel gear wheel one (8) and output bevel gear wheel two (15) slow-speed of revolution rotating Vortex；When automobile turning Inboard wheel can generate bigger resistance, and bevel planet gear two (9) around output shaft axis (47) while revolving, planet cone Gear two (9) can also surround planet axis axis (49) rotation, cause output bevel gear wheel one (8) right by output shaft one (5) driving The rotation speed of wheel drives the rotation speed of left wheel unequal with output bevel gear wheel two (15) by output shaft two (18), real Now coordinate the technical requirements of left and right sides vehicle wheel rotational speed；

Axle sleeve one (7), axle sleeve two (17), axle sleeve three (13), axle sleeve four (10) are cylindrical, and it is axle sleeve axis hole that radial direction is intermediate (24), axial one end is the axle sleeve thrust shaft shoulder (23)；Planet axis (11) is cylindrical, and axial one end is planet axis positioning shaft shoulder (22)；It is bevel gear axis hole (25) among bevel planet gear one (14) is radial, radial outside is the gear teeth, and axial one end is gear Front end face, the axial other end are gear rear end face (26)；It is bevel gear axis hole (25), diameter among bevel planet gear two (9) is radial It is the gear teeth outward, axial one end is gear front end face, and the axial other end is gear rear end face (26)；Planet stent (12) is in Annular, planet stent (12) radially inner side are rack bore (20), and planet stent (12) inner radial surface is evenly distributed with several brackets There is a bracket fixed shaft hole (21) at mounting plane (19), each bracket mounting plane (19) center；

Planet stent component is in assembly, respectively a bevel planet gear two (9), axle sleeve four (10), bevel planet gear one (14), axle sleeve three (13) is sequentially arranged on a planet axis (11), and axle sleeve four (10) is made to be mounted on bevel planet gear two (9) In bevel gear axis hole (25), and make the axle sleeve thrust shaft shoulder (23) of axle sleeve four (10) and the gear rear end of bevel planet gear two (9) Face (26) contact is installed together, and is mounted on axle sleeve three (13) in the bevel gear axis hole (25) of bevel planet gear one (14), and It contacts the axle sleeve thrust shaft shoulder (23) of axle sleeve three (13) with the gear rear end face (26) of bevel planet gear one (14) and is mounted on one It rises, contacts the gear front end face of bevel planet gear two (9) with the planet axis positioning shaft shoulder (22) of planet axis (11) and be mounted on one It rises, then several planet axis (11) is separately mounted in the bracket fixed shaft hole (21) of planet stent (12), make planet axis (11), bevel planet gear two (9), axle sleeve four (10), bevel planet gear one (14), axle sleeve three (13) are located at planet stent (12) In rack bore (20), make the axle sleeve thrust shaft shoulder (23) of axle sleeve three (13) and the bracket mounting plane (19) of planet stent (12) Contact is installed together, and makes bevel planet gear two (9) and bevel planet gear one (14) that can surround planet axis axis (49) respectively Rotation；

Input shaft one (4) is cylindrical, and axial one end is input bevel gear one (3), inputs the gear front end of bevel gear one (3) Face is located at the axially external one end of input shaft one (4)；Input shaft two (2) is cylindrical, and axial one end is input bevel gear two (1), the gear front end face for inputting bevel gear two (1) is located at the axially external one end of input shaft two (2)；

It is bi-bevel gear axis hole one (29) that bi-bevel gear one (6) is radial intermediate, bi-bevel gear one (6) from radially inner side outward successively It is the inside gear teeth one (30), the outside gear teeth one (31), the inside gear teeth one (30), the outside gear teeth one (31) are in axial the same side；It is defeated It is internal spline one (32) that bevel gear one (8) radial direction is intermediate out, and radial outside is the gear teeth, and axial one end is gear front end face, axis It is gear rear end face (26) to the other end；Output shaft one (5) is cylindrical, and axial left side one end is successively external splines one to the right (33), axle journal one (34), the shaft shoulder one (35)；

Output shaft assembly one is mounted on axle sleeve one (7) on the axle journal one (34) of output shaft one (5) in assembly, makes axle sleeve one (7) the axle sleeve thrust shaft shoulder (23) is contacted with the shaft shoulder one (35) of output shaft one (5) to be installed together, bi-bevel gear one (6) Bi-bevel gear axis hole one (29) be mounted on axle sleeve one (7), make bi-bevel gear one (6) without one end of the outside gear teeth one (31) It contacts and is installed together with the axle sleeve thrust shaft shoulder (23) of axle sleeve one (7), the internal spline one (32) of output bevel gear wheel one (8) is pacified On the external splines one (33) of output shaft one (5), make the gear rear end face (26) and axle sleeve one (7) of output bevel gear wheel one (8) Left end face contact is installed together；

It is bi-bevel gear axis hole two (36) that bi-bevel gear two (16) is radial intermediate, bi-bevel gear two (16) from radially inner side outward according to Secondary is the inside gear teeth two (38), the outside gear teeth two (37), and the inside gear teeth two (38), the outside gear teeth two (37) are in axial the same side； It is internal spline two (39) among output bevel gear wheel two (15) is radial, radial outside is the gear teeth, and axial one end is gear front end face, The axial other end is gear rear end face (26)；Output shaft two (18) is cylindrical, and axial right side one end is successively outer flower to the left Key two (42), axle journal two (41), the shaft shoulder two (40)；

Output shaft assembly two is mounted on axle sleeve two (17) on the axle journal two (41) of output shaft two (18) in assembly, makes axle sleeve The axle sleeve thrust shaft shoulder (23) of two (17) is contacted with the shaft shoulder two (40) of output shaft two (18) to be installed together, bi-bevel gear two (16) bi-bevel gear axis hole two (36) is mounted on axle sleeve two (17), makes bi-bevel gear two (16) without the outside gear teeth two (37) One end contact and be installed together with the axle sleeve thrust shaft shoulder (23) of axle sleeve two (17), the internal spline of output bevel gear wheel two (15) Two (39) are mounted on the external splines two (42) of output shaft two (18), make the gear rear end face (26) of output bevel gear wheel two (15) with The contact of axle sleeve two (17) right end face is installed together；

After deceleration mechanism assembly, the bevel planet gear one (14) of planet stent component on the right side of axial direction with output shaft assembly one Bi-bevel gear one (6) the inside gear teeth one (30) engagement, the bevel planet gear one (14) of planet stent component is in axial left side It is engaged with the inside gear teeth two (38) of the bi-bevel gear two (16) of output shaft assembly two；The bevel planet gear two of planet stent component (9) it is engaged on the right side of axial direction with the output bevel gear wheel one (8) of output shaft assembly one, the bevel planet gear two of planet stent component (9) it is engaged on the left of axial direction with the output bevel gear wheel two (15) of output shaft assembly two；

Input shaft component one is mounted on the radial outside of planet stent component, also, input shaft component one is mounted on bi-bevel gear Position between one (6) and bi-bevel gear two (16) axial direction, the input bevel gear one (3) of input shaft component one and output shaft assembly The outside gear teeth one (31) of one bi-bevel gear one (6) engage, and the diameter that input shaft component two is mounted on planet stent component is outside Side, also, input shaft component two is mounted on the position between bi-bevel gear one (6) and bi-bevel gear two (16) axial direction, input shaft The outside gear teeth two (37) of the bi-bevel gear two (16) of the input bevel gear two (1) and output shaft assembly two of component two engage；

It is the bi-bevel gear two (16) of the deceleration mechanism, bevel planet gear one (14), planet axis (11), planet stent (12), double Bevel gear one (6) forms bipyramid tooth planetary reducer, and the driving link of bipyramid tooth planetary reducer is first is that bi-bevel gear One (6), driving link is second is that bi-bevel gear two (16), driven member are planet stent (12)；Bipyramid tooth planetary reducer, which is done, to be subtracted Speed transmission；One direction of rotation of bi-bevel gear (52) is opposite with bi-bevel gear two direction of rotation (46)；Bi-bevel gear one (6) rotation speed When spending equal with bi-bevel gear two (16) rotation speed, bevel planet gear one (14) surrounds planet axis axis (49) rotation, planet Bracket (12) remains static；When bi-bevel gear one (6) rotation speed and bi-bevel gear two (16) rotation speed are unequal, row For star bevel gear one (14) while surrounding planet axis axis (49) rotation, bevel planet gear one (14) can also surround output shaft axis Line (47) revolution, bevel planet gear one (14) drive planet stent (12) slow-speed of revolution rotation, planet stent (12) rotation speed etc. In the absolute value of the difference of bi-bevel gear one (6) rotation speed and bi-bevel gear two (16) rotation speed；If bi-bevel gear one (6) is revolved Rotary speed is greater than bi-bevel gear two (16) rotation speed, planet stent direction of rotation (43) and one direction of rotation of bi-bevel gear (52) It is identical；Bi-bevel gear two if (16) rotation speed be greater than bi-bevel gear one (6) rotation speed, planet stent direction of rotation (43) with Two direction of rotation of bi-bevel gear (46) is identical；

It is the output bevel gear wheel two (15) of the deceleration mechanism, bevel planet gear two (9), planet axis (11), planet stent (12), defeated Bevel gear one (8) forms wheel differential out, and wheel differential driving link is planet stent (12), and driven member is an output bevel gear One (8) are taken turns, driven member is two output bevel gear wheels two (15)；Bi-bevel gear one (6) rotation speed and bi-bevel gear two (16) rotate When speed is unequal, bevel planet gear one (14) drives planet stent (12) slow-speed of revolution rotation, and planet stent (12) passes through planet Bevel gear two (9) respectively drives output bevel gear wheel one (8) and output bevel gear wheel two (15) slow-speed of revolution rotating Vortex；Work as automobile turning When inboard wheel can generate bigger resistance, bevel planet gear two (9) around output shaft axis (47) while revolving, planet Bevel gear two (9) can also surround planet axis axis (49) rotation, and output bevel gear wheel one (8) is caused to drive by output shaft one (5) The rotation speed of right wheel drives the rotation speed of left wheel unequal with output bevel gear wheel two (15) by output shaft two (18), Outboard wheels rotation speed is faster than inboard wheel rotation speed, it is ensured that automobile can smoothly turn；

The input bevel gear one (3) of the input shaft component one of the deceleration mechanism and the bi-bevel gear one (6) of output shaft assembly one The outside gear teeth one (31) form a first order retarder, the input bevel gear two (1) of input shaft component two and output shaft The outside gear teeth two (37) of the bi-bevel gear two (16) of part two form another first order retarder, bipyramid tooth planetary gear speed-reduction Device is the second level retarder of the deceleration mechanism；

Bi-bevel gear two (16) are replaced according to B-mode bi-bevel gear two (59), input shaft component two is made to be mounted on B-mode bipyramid tooth The axial left side for taking turns two (59), forms B-mode automobile-used two-stage bipyramid tooth mechanical differential structure, input shaft component two and input shaft When axially aligning installation along output shaft axis (47) space interference will not occur for component one；

It is B-mode bi-bevel gear axis hole two (60), the axial ends point of radial outside among B-mode bi-bevel gear two (59) is radial It is not the B-mode inside gear teeth two (61), the B-mode outside gear teeth two (62), and the B-mode inside gear teeth two (61) are located at B-mode outside The gear teeth two (62) radially inner side；B-mode bi-bevel gear two (59) is in assembly, the B-mode bipyramid of B-mode bi-bevel gear two (59) Gear shaft holes two (60) are mounted on axle sleeve two (17), and B-mode bi-bevel gear two (59) is made to have the one of the B-mode outside gear teeth two (62) End is contacted with the axle sleeve thrust shaft shoulder (23) of axle sleeve two (17) to be installed together；The bevel planet gear one (14) of planet stent component It is engaged on the left of axial direction with the B-mode inside gear teeth two (61) of B-mode bi-bevel gear two (59)；Tooth is bored in the input of input shaft component two It is engaged with the B-mode outside gear teeth two (62) of B-mode bi-bevel gear two (59) two (1) of wheel.

2. a kind of application method of automobile-used two-stage bipyramid tooth mechanical differential structure according to claim 1, it is characterised in that: Deceleration mechanism operational process is:

When the deceleration mechanism starts, controller one controls one slow-speed of revolution of motor starting, and is gradually increased one turn of motor Speed, at the same time, controller two control two slow-speed of revolution of motor starting, and two revolving speed of motor, motor one is gradually increased By input shaft one (4), input bevel gear one (3) driving bi-bevel gear one (6) around output shaft axis (47) along bipyramid tooth A direction of rotation (52) rotation is taken turns, motor two drives bi-bevel gear two by input shaft two (2), input bevel gear two (1) (16) around output shaft axis (47) along two direction of rotation of bi-bevel gear (46) rotate, one direction of rotation of bi-bevel gear (52) with Two direction of rotation of bi-bevel gear (46) is opposite；When one rotation speed of motor is equal with two rotation speed of motor, planet bores tooth It takes turns one (14) and surrounds planet axis axis (49) rotation, planet stent (12) remains static, output shaft one (5) and output shaft two (18) revolving speed is zero, and automobile stops traveling；

If one rotation speed of motor is greater than two rotation speed of motor, bi-bevel gear one (6) drives bevel planet gear one (14) it is greater than bi-bevel gear two along the rotation speed of one direction of rotation of bevel planet gear (48) around planet axis axis (49) (16) driving bevel planet gear one (14) is around planet axis axis (49) along the rotation of one direction of rotation of bevel planet gear (48) Speed, in order to offset the speed difference, bevel planet gear one (14) can also revolve around output shaft axis (47), bevel planet gear one (14) driving planet stent (12) slow-speed of revolution rotation, planet stent (12) linear velocity are equal to bi-bevel gear one (6) rotational line The difference of speed and bi-bevel gear two (16) linear velocity；Planet stent direction of rotation (43) and one direction of rotation of bi-bevel gear (52) identical, planet stent (12) respectively drives output bevel gear wheel one (8) and output bevel gear wheel two by bevel planet gear two (9) (15) slow-speed of revolution rotating Vortex, automobile move forward；

If two rotation speed of motor is greater than one rotation speed of motor, bi-bevel gear two (16) drives bevel planet gear one (14) it is greater than bi-bevel gear one (6) along the rotation speed of one direction of rotation of bevel planet gear (48) around planet axis axis (49) The rotation speed of bevel planet gear one (14) around planet axis axis (49) along one direction of rotation of bevel planet gear (48) is driven, In order to offset the speed difference, bevel planet gear one (14) can also revolve around output shaft axis (47), bevel planet gear one (14) Planet stent (12) slow-speed of revolution rotation is driven, planet stent (12) linear velocity is equal to bi-bevel gear two (16) linear velocity And the difference of bi-bevel gear one (6) linear velocity；Planet stent direction of rotation (43) and two direction of rotation of bi-bevel gear (46) phase Together, planet stent (12) respectively drives output bevel gear wheel one (8) by bevel planet gear two (9) and output bevel gear wheel two (15) is low Revolving speed rotating Vortex, automobile travel backward；

When one rotation speed of motor and two rotation speed of motor are unequal, planet stent (12) passes through bevel planet gear two (9), output bevel gear wheel one (8) drives output shaft one (5) slow-speed of revolution rotating Vortex, meanwhile, planet stent (12) is bored by planet Gear two (9), output bevel gear wheel two (15) drive output shaft two (18) slow-speed of revolution rotating Vortex；The inboard wheel when automobile turning Bigger resistance can be generated, bevel planet gear two (9) around output shaft axis (47) while revolving, bevel planet gear two (9) planet axis axis (49) rotation can also be surrounded；If automobile is turned to the left, output bevel gear wheel one (8) angular velocity of rotation is greater than Planet stent (12) angular velocity of rotation, meanwhile, output bevel gear wheel two (15) angular velocity of rotation is less than planet stent (12) rotation angle Speed；If automobile is turned to the right, output bevel gear wheel two (15) angular velocity of rotation is greater than planet stent (12) angular velocity of rotation, together When, output bevel gear wheel one (8) angular velocity of rotation is less than planet stent (12) angular velocity of rotation；Cause output bevel gear wheel one (8) logical Crossing output shaft one (5) drives the rotation speed of right wheel and output bevel gear wheel two (15) to pass through output shaft two (18) driving left wheel Rotation speed it is unequal, outboard wheels rotation speed is faster than inboard wheel rotation speed, it is ensured that automobile can smoothly turn.