CN108961986A - A kind of CVT infinitely variable transmission transmission principle simulator - Google Patents
A kind of CVT infinitely variable transmission transmission principle simulator Download PDFInfo
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- CN108961986A CN108961986A CN201811164668.4A CN201811164668A CN108961986A CN 108961986 A CN108961986 A CN 108961986A CN 201811164668 A CN201811164668 A CN 201811164668A CN 108961986 A CN108961986 A CN 108961986A
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Abstract
The present invention relates to automobile CVT infinitely variable transmission fields, more particularly to a kind of CVT infinitely variable transmission transmission principle simulator, comprising: pedestal, synchronous belt, revoling tube, the first rotary power part, shell, central gear, cardan shaft, the first rotation open part, step axis, retainer ring, push pin, edge cam cylinder, the second rotary power part；Second rotation stretching mechanism includes: forward and reverse screw rod, guide sleeve, speed induction machine, third rotary power part, articulated joint guide pipe, hinged headgear, the second rotation opening part.First rotation stretching mechanism is taken turns opposite expansion simultaneously with the synchronous belt top of the second rotation stretching mechanism circumference and is reduced, continually changing the testing the speed come the intuitive influence observed to its revolving speed, so as to clearly understand the conical disc transmission principle inside automatic gear-box come the synchronous belt top wheel speed to the second rotation stretching mechanism in the process of circumference outer diameter is taken turns on the synchronous belt top of Liang Ge mechanism entirety by the first rotation stretching mechanism fixed rotating speed.
Description
Technical field
The present invention relates to automobile CVT infinitely variable transmission fields, former in particular to a kind of CVT infinitely variable transmission speed change
Manage simulator.
Background technique
With the continuous progress of science and technology, CVT technology is constantly mature, has good economy, dynamic property and drives smooth
Property, reduces discharge and cost, plurality of advantages make it using more and more common.Automobile gearbox is eventually substituted by CVT
Manual transmission (MT) and have a grade automatic gear-box (AT), stepless speed-change automobile is current or even future automobile development mainly becomes
Gesture.
The main component of CVT infinitely variable transmission is two pulleys and a metal tape, and metal tape covers on two pulleys.It is sliding
Wheel is made of two pieces of wheel discs, and the groove among this two panels wheel disc forms a V-arrangement, and wherein the wheel disc on one side is by hydraulic control
Control can carry out the movement for separating with furthering depending on different engine speed, and v-depression also broadens or narrows therewith, will be golden
Belong to band to be raised and lowered to change the diameter of metal tape and pulley contact, is equivalent to the tooth for switching different-diameter in gear shift
Wheel.Two pulleys are adjusted in reversed, i.e., when one of pulley groove gradually broadens, another pulley groove will gradually become
It is narrow, to increase the variation of transmission ratio rapidly.CVT infinitely variable transmission maintenance personal is being carried out to understand CVT for introduction training
Infinitely variable transmission transmission principle is the first step and a most important step for contacting gearbox repairing industry.
Summary of the invention
To solve the above problems, the purpose of the present invention is to provide a kind of changes of full simulation automatic gear-box interior tapered disk
The CVT infinitely variable transmission transmission principle simulator of fast principle.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of CVT infinitely variable transmission transmission principle simulator provided by the invention, comprising: pedestal, first rotation stretching mechanism,
Second rotation stretching mechanism, synchronous belt；First rotation stretching mechanism include: revoling tube, the first rotary power part, shell, in
Heart gear, cardan shaft, the first rotation open part, step axis, retainer ring, push pin, edge cam cylinder, the second rotary power
Part；Second rotation stretching mechanism includes: forward and reverse screw rod, guide sleeve, speed induction machine, third rotary power part, articulated joint
Part is opened in guide pipe, hinged headgear, the second rotation；
Revoling tube is rotatably arranged on pedestal, and the first rotary power part is set on the base to be connected by power with revoling tube
Revoling tube rotation is driven, revoling tube is connected to shell, and central gear is rotatably arranged in shell, and cardan shaft setting exists
In revoling tube and one end runs through shell, is provided with thread groove on cardan shaft, internal screw thread, centre tooth are provided in central gear
Wheel is set on cardan shaft after being meshed by internal screw thread with thread groove；The quantity that part is opened in first rotation is multiple, the first rotation
Turn to open part to include rack and the first synchronous belt top wheel；Multiple through slots, multiple racks are offered in the peripheral side of shell
One end engage and be circularly and evenly distributed with central gear, the other ends of multiple racks passes through through slot and extends hull outside
It takes turns and connects with the first synchronous belt top, multiple first synchronous belts top wheel surrounds the first rotation and opens circumference, and the other end of cardan shaft is worn
Revoling tube is connect with step axis out, and retainer ring sliding is fastened on step axis, and retainer ring is connected with promotion pin vertically, and end face is convex
Wheel cylinder is rotatably arranged on pedestal, and the second rotary power part, which is set on the base, is connected by power band with edge cam cylinder
Moved end face cam cylinder rotates, and end to end cam path is offered on edge cam cylinder, and pin card is pushed to be located in cam path；
Forward and reverse screw rod is rotatably arranged on pedestal, and guide sleeve is set on forward and reverse screw rod, and speed induction machine is arranged
On guide sleeve, third rotary power part, which is set on the base to be connected by power with forward and reverse screw rod, drives forward and reverse screw rod to turn
Dynamic, screw thread is set in the forward screw thread section of forward and reverse screw rod, in reverse thread section respectively for articulated joint guide pipe, hinged headgear, hinge
Connector guide pipe is connect with guide sleeve feather key, second rotation open part quantity be it is multiple, second rotation open part include: top
Wheel support axis, three struts, the second synchronous belt top wheel；Top wheel support axis and two of them strut, articulated joint guide pipe form four bars hinge
Connection mechanism and top wheel support axis and are arranged in parallel with articulated joint guide pipe, and another strut is hinged between top wheel support axis and hinged headgear,
Second synchronous belt top wheel is set on the wheel support axis of top, and multiple second synchronous belts top wheel surrounds the second rotation and opens circumference, synchronous belt
It is set in the first rotation opening circumference, the second rotation is opened on circumference.
Further, the long end shaft of cam path is less than the axial length of thread groove on cardan shaft to length.
Further, it is provided with fixed block set on pedestal, the through-hole that front and back penetrates through, through-hole inner sleeve are offered in fixed block set
Equipped with first bearing, revoling tube is arranged in first bearing；Cardan shaft promotes section and second propulsion section two parts group by first
At first promotes section outer diameter to be less than revoling tube internal diameter, and thread groove is provided in the first propulsion section, and second promotes section and rotary sleeve
Second bearing is cased between inside pipe wall.
Further, the other end horizontal connection of rack has synchronous belt top wheel shaft, and the first synchronous belt top wheel is set in same
On the wheel shaft of step band top, the circumference platform that former and later two end face edges are provided with protrusion is taken turns on the first synchronous belt top.
Further, the first rotary power part includes: first motor, the first worm screw, the first worm gear；First motor setting exists
On pedestal, the first worm gear is set on revoling tube, and the first worm screw is connected by power with first motor and engages with the first worm gear.
Further, it is arranged on step axis there are two the raised circumferential step in spacing distribution, in two raised circumference
Retainer ring is arranged on step axis between step, retainer ring is semicircle retainer ring, and it is more than step axis circumference that semicircle retainer ring, which covers dynamic region,
Half.
Further, connect that there are two the fixation vertical rod sleeves in spacing distribution on pedestal vertically, on two fixed vertical rod sleeves
It is arranged with edge cam cylinder, the second rotary power part includes the second motor, and the second motor is connected by power with edge cam cylinder.
Further, it is in the vertical plate of spacing distribution there are two being connected vertically on pedestal, is arranged on two vertical plates forward and reverse
Screw rod, third rotary power part include: third motor, the second worm screw, the second worm gear；Third motor is set on the base, and second
Worm gear is set on forward and reverse screw rod, and the second worm screw connect with third motor power and engages with the second worm gear.
Further, several gib blocks of circumferentially-spaced are provided on guide sleeve, articulated joint guide pipe is provided with
Several guiding cuttings of circumferentially-spaced, several gib blocks and several guiding cutting phase gaps are set to plugging, gib block with lead
It is greater than the axial distance of thread groove on cardan shaft to the length of cutting.
Further, articulated joint guide pipe, internal screw thread interstage sleeve, internal screw thread are provided with by 3rd bearing in hinged headgear
Interstage sleeve is set in the forward screw thread section of forward and reverse screw rod, in reverse thread section, and internal screw thread interstage sleeve two end faces circle distribution, which has, stretches
To articulated joint guide pipe, several baffles of hinged headgear.
In CVT infinitely variable transmission transmission principle simulator of the invention, the first rotation stretching mechanism and the second rotation
The Integral synchronous band top wheel of opening mechanism circumference is opposite simultaneously to be expanded and reduces, by the first rotation stretching mechanism fixed rotating speed two
Come the synchronous belt top to the second rotation stretching mechanism during the synchronous belt top wheel circumference outer diameter of a mechanism entirety is continually changing
Testing the speed for wheel speed intuitively observes the influence to its revolving speed, so as to clearly understand the conical disc inside automatic gear-box
Transmission principle.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of structure chart of angle of CVT infinitely variable transmission transmission principle simulator of the present invention；
Fig. 2 is the structure chart of CVT infinitely variable transmission transmission principle simulator another kind angle of the present invention；
Fig. 3 is a kind of front view of angle of CVT infinitely variable transmission transmission principle simulator of the present invention；
Fig. 4 is the front view of CVT infinitely variable transmission transmission principle simulator another kind angle of the present invention；
Fig. 5 is the structure chart of the first rotation stretching mechanism in CVT infinitely variable transmission transmission principle simulator of the present invention；
Fig. 6 is the partial cut-away view of the first rotation stretching mechanism in CVT infinitely variable transmission transmission principle simulator of the present invention；
Fig. 7 is the structure chart of shell in CVT infinitely variable transmission transmission principle simulator of the present invention；
Fig. 8 is a kind of state when central gear is engaged with rack in CVT infinitely variable transmission transmission principle simulator of the present invention
Structure chart；
Fig. 9 is another kind shape when central gear is engaged with rack in CVT infinitely variable transmission transmission principle simulator of the present invention
The structure chart of state；
Figure 10 is second rotation a kind of structure of state of stretching mechanism in CVT infinitely variable transmission transmission principle simulator of the present invention
Figure；
Figure 11 is the knot of the second rotation stretching mechanism another kind state in CVT infinitely variable transmission transmission principle simulator of the present invention
Composition；
Figure 12 is the local structural graph of the second rotation stretching mechanism in CVT infinitely variable transmission transmission principle simulator of the present invention；
Figure 13 is the structure chart of forward and reverse screw rod in CVT infinitely variable transmission transmission principle simulator of the present invention；
Figure 14 is the structure chart of articulated joint guide pipe in CVT infinitely variable transmission transmission principle simulator of the present invention；
Figure 15 is the structure chart of guide sleeve in CVT infinitely variable transmission transmission principle simulator of the present invention；
Figure 16 be in CVT infinitely variable transmission transmission principle simulator of the present invention articulated joint guide pipe and guide sleeve to slotting knot
Composition；
Figure 17 is the structure chart of internal screw thread interstage sleeve in CVT infinitely variable transmission transmission principle simulator of the present invention；
Wherein appended drawing reference are as follows: 1, pedestal；2, synchronous belt；3, revoling tube；4, shell；5, central gear；6, cardan shaft；7, platform
Rank axis；8, retainer ring；9, pin is pushed；10, edge cam cylinder；11, forward and reverse screw rod；12, guide sleeve；13, Speed sensing
Device；14, articulated joint guide pipe；15, hinged headgear；16, thread groove；17, rack；18, the first synchronous belt top is taken turns；19, through slot；
20, cam path；21, top wheel support axis；22, strut；23, the second synchronous belt top is taken turns；24, fixed block set；25, first bearing；26,
Two bearings；27, circumference platform；28, first motor；29, the first worm screw；30, the first worm gear；31, raised circumferential step；32, fixed
Vertical rod sleeve；33, the second motor；34, vertical plate；35, third motor；36, the second worm screw；37, the second worm gear；38, gib block；39,
It is oriented to cutting；40, internal screw thread interstage sleeve；41, baffle；42,3rd bearing；43, end face bearing.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
As shown in Fig. 1 to 17, a kind of CVT infinitely variable transmission transmission principle simulator of the embodiment of the present invention, comprising: bottom
Seat 1, first rotates stretching mechanism, the second rotation stretching mechanism, synchronous belt 2；First rotation stretching mechanism include: revoling tube 3,
First rotary power part, shell 4, central gear 5, the rotation of cardan shaft 6, first open part, step axis 7, retainer ring 8, push pin
9, edge cam cylinder 10, the second rotary power part；Second rotation stretching mechanism include: forward and reverse screw rod 11, guide sleeve 12,
Part is opened in speed induction machine 13, third rotary power part, articulated joint guide pipe 14, the rotation of hinged headgear 15, second；
Revoling tube 3 is rotatably arranged on pedestal 1, and the first rotary power part is arranged on pedestal 1 and 3 power of revoling tube
Connection drives revoling tube 3 to rotate, and revoling tube 3 is connected to shell 4, and central gear 5 is rotatably arranged in shell 4, is pushed away
It is arranged in revoling tube 3 into axis 6 and one end runs through shell 4, is provided with thread groove 16 on cardan shaft 6, is set in central gear 5
It is equipped with internal screw thread, central gear 5 is set on cardan shaft 6 after being meshed by internal screw thread with thread groove 16；First rotation is opened
The quantity of part be it is multiple, first rotation open part include rack 17 and the first synchronous belt top wheel 18；In the peripheral side of shell 4
Multiple through slots 19 are offered, one end of multiple racks 17 engages and is circularly and evenly distributed with central gear 5, multiple racks
17 other end extends 4 outside of shell across through slot 19 and connect with the first synchronous belt top wheel 18, multiple first synchronous belts top wheel
18, which surround the first rotation, opens circumference, and the other end of cardan shaft 6 is pierced by revoling tube 3 and connect with step axis 7, and retainer ring 8 slides
It being fastened on step axis 7, retainer ring 8 is connected with vertically pushes pin 9, and edge cam cylinder 10 is rotatably arranged on pedestal 1,
Second rotary power part, which is arranged on pedestal 1 to be connected by power with edge cam cylinder 10, drives edge cam cylinder 10 to rotate, end
End to end cam path 20 is offered on face cam cylinder 10, and pin 9 is pushed to be fastened in cam path 20；
Forward and reverse screw rod 11 is rotatably arranged on pedestal 1, and guide sleeve 12 is set on forward and reverse screw rod 11, Speed sensing
Device 13 is set on guide sleeve 12, and the setting of third rotary power part is connected by power drive with forward and reverse screw rod 11 on pedestal 1
Forward and reverse screw rod 11 rotates, and screw thread is set in the positive spiral shell of forward and reverse screw rod 11 respectively for articulated joint guide pipe 14, hinged headgear 15
In line section, reverse thread section, articulated joint guide pipe 14 is connect with 12 feather key of guide sleeve, and it is more that the quantity of part is opened in the second rotation
A, it includes: top wheel support 21, three struts 22 of axis, the second synchronous belt top wheel 23 that part is opened in the second rotation；Top wheel support axis 21 with wherein
Two struts 22, articulated joint guide pipe 14 form four bar linkworks and top wheel support, and axis 21 is parallel with articulated joint guide pipe 14 sets
It sets, another strut 22 is hinged between top wheel support axis 21 and hinged headgear 15, and the second synchronous belt top wheel 23 is set in top wheel support axis
On 21, multiple second synchronous belts top wheel 23 surround the second rotation open circumference, synchronous belt 2 be set in the first rotation open circumference,
Second rotation is opened on circumference.
In CVT infinitely variable transmission transmission principle simulator of the invention, the first rotation stretching mechanism and the second rotation
The Integral synchronous band top wheel of opening mechanism circumference is opposite simultaneously to be expanded and reduces, by the first rotation stretching mechanism fixed rotating speed two
Come the synchronous belt top to the second rotation stretching mechanism during the synchronous belt top wheel circumference outer diameter of a mechanism entirety is continually changing
Testing the speed for wheel speed intuitively observes the influence to its revolving speed, so as to clearly understand the conical disc inside automatic gear-box
Transmission principle.
In as a preferred technical scheme, the long end shaft of cam path 20 is less than the axis of thread groove 16 on cardan shaft 6 to length
To length.
10 outer wall of edge cam cylinder is provided with end to end cam path 20, and the long end shaft of cam path 20 is less than to length
The axial length of thread groove 16 on cardan shaft 6, this setting can guarantee to be promoted in the case where the driving axial of edge cam cylinder 10 pushes
The advance distance of axis 6 is always in the range of thread groove 16 controls.
In as a preferred technical scheme, it is provided with fixed block set 24 on pedestal 1, offers front and back in fixed block set 24 and passes through
Logical through-hole is arranged with first bearing 25 in through-hole, revoling tube 3 is arranged in first bearing 25；Cardan shaft 6 is promoted by first
Section and second propulsion section two parts composition, first promotes section outer diameter to be less than 3 internal diameter of revoling tube, and thread groove 16 is provided with first and pushes away
Into in section, second bearing 26 is cased between the second propulsion section and 3 inner wall of revoling tube.
The present apparatus is mainly by the first rotation stretching mechanism, the second rotation stretching mechanism, 1 dependency structure of pedestal and synchronous belt
2 compositions.Pedestal 1 is integrally fixedly connected with fixed block set 24 vertically in the region of corresponding first rotation stretching mechanism, in fixation
It is provided with the through-hole that front and back penetrates through in block set 24, first bearing 25 is cased with inside through-hole, is cased with rotary sleeve inside first bearing 25
Pipe 3, revoling tube 3 can relatively rotate with fixed block set 24 under the action of first bearing 25.Before revoling tube 3
End is coaxially connected with discoid shell 4, reinforces connection by the floor that even circumferential is distributed between revoling tube 3 and shell 4,
Revoling tube 3 is axially inside provided with the channel that front and back penetrates through, and the channel in revoling tube 3 penetrates through always the front and back end of shell 4
Face is cased with cardan shaft 6 inside revoling tube 3, and cardan shaft 6 is made of the thin two parts of the thick back segment of leading portion, and wider section outer diameter omits
Less than 3 internal diameter of revoling tube, be cased with second bearing 26 between 3 inner wall of thinner section and revoling tube, allow revoling tube 3 with
Cardan shaft 6 relatively rotates, and 6 front end of cardan shaft is stretched out from the front end face of shell 4, and in cardan shaft 6 outside front end area
Wall is provided with the thread groove 16 of spiral winding, is cased with central gear 5 on 6 sections of cardan shaft inside shell 4, in central gear 5
Circle be provided with the internal screw thread that thread groove 16 matches on cardan shaft 6 so that between central gear 5 and cardan shaft 6 be thread bush
Connect relationship.
In as a preferred technical scheme, the other end horizontal connection of rack 17 has synchronous belt top wheel shaft, and first is synchronous
Band top wheel 18 is set on the wheel shaft of synchronous belt top, and the circumference that 18 former and later two end face edges are provided with protrusion is taken turns on the first synchronous belt top
Platform 27.
It is cased with end face bearing 43 on the cardan shaft 6 between 4 two end faces in inside of central gear 5 and shell simultaneously, is being held
Under the action of spherical bearing 43, it can relatively rotate between central gear 5 and shell 4.Centre tooth inside shell 4 simultaneously
The outer collar region even circumferential of wheel 5 is provided with the rack 17(the technical program not less than three groups using eight groups, in motion process
Each group is mutually non-interference), rack 17 is that connecting rod is integrally fixedly connected with gear, the gear of the rack 17 of even circumferential distribution
Part is engaged with central gear 5 simultaneously, and the connecting rod of every group of rack 17 keeps phase relative to 5 outer circle angle of central gear
Together, rack 17 cuts with scissors dynamic connection by the Gear axis position of its gear parts inside shell 4.And the circumference side of shell 4
The region of upper every group of connecting rod of correspondence is provided with through slot 19, and the through slot 19 of 4 circumference side of shell may make the company of corresponding rack 17
Bar part is extended outside shell 4, and through slot 19 has certain deflection with certain length for the connecting rod of rack 17
Angle.When the 5 outer circle region of central gear that the direction of rack 17 is engaged with it is in plumbness, the gear of circle distribution
The circumference largest outside diameter that another end of bar 17 is expanded drives the rack 17 of its circumferential engagement when central gear 5 rotates
When rotating synchronously, the 5 outer circle region angle of central gear that the direction of rack 17 is engaged with it is gradually reduced from vertical,
The circumference minimum outer diameter that another end of rack 17 of even circumferential distribution at this time is expanded.In every group of 17 outer circumferential side of rack
End is horizontally fixed with a synchronous belt top wheel shaft, and coaxial fixing sleeve is connected to the first synchronous belt top wheel on the wheel shaft of synchronous belt top
18.On the first synchronous belt top, former and later two end face edges of wheel 18 are provided with the circumference platform 27 of protrusion, so that synchronous belt 2 will not be from
Both ends slide.
In as a preferred technical scheme, the first rotary power part includes: first motor 28, the first worm screw 29, the first snail
Wheel 30；First motor 28 is arranged on pedestal 1, and the first worm gear 30 is set on revoling tube 3, the first worm screw 29 and first motor
28 are connected by power and engage with the first worm gear 30.
It is coaxially fixed with the first worm gear 30 on the revoling tube 3 at fixed 24 rear of block set, 30 side of the first worm gear is nibbled
Conjunction has the first worm screw 29, and the first worm screw 29 is fixedly connected in first motor 28 by 29 shaft of the first worm screw, first motor 28
It is fixed on pedestal 1.It is opened when first motor 28 and drives worm gear mechanism rotation, the first worm gear 30 drives 3 turns of revoling tube
Dynamic, revoling tube 3 drives the synchronous rotation of rack 17 by shell 4.
It is arranged in as a preferred technical scheme, on step axis 7 there are two the raised circumferential step 31 in spacing distribution,
Retainer ring 8 is arranged on step axis 7 between two raised circumferential steps 31, retainer ring 8 is semicircle retainer ring 8, and 8 sets of semicircle retainer ring dynamic
Region is more than the half of 7 circumference of step axis.
In the rear end end point of cardan shaft 6, there are two raised circumferential steps 31 at regular intervals to be used as step axis for setting
7, semicircle retainer ring 8 is cased on the step axis 7 of two 31 intermediate regions of raised circumferential step, 8 sets of semicircle retainer ring dynamic regions are super
The half for crossing 7 circumference of step axis enables semicircle retainer ring 8 to be flexibly stuck on step axis 7 and will not fall off.
The fixation vertical rod sleeve 32 being distributed there are two being connected vertically in as a preferred technical scheme, on pedestal 1 in spacing, two
Edge cam cylinder 10 is arranged on a fixed vertical rod sleeve 32, the second rotary power part includes the second motor 33, the second motor 33
It is connected by power with edge cam cylinder 10.
It is fixedly connected with vertically in 8 outer peripheral surface of semicircle retainer ring and pushes pin 9, it is solid vertically on the underface pedestal 1 for pushing pin 9
There are two the fixation vertical rod sleeves 32 of front and back at regular intervals distribution for fixed connection, are cased with cylindrical shaft on fixed vertical rod sleeve 32,
Edge cam cylinder 10 is cased in cylindrical shaft between two fixed vertical rod sleeves 32.8 lower section of semicircle retainer ring is fixedly connected vertically
Promotion pin 9 be stuck in inside the cam path 20 of edge cam cylinder 10, pass through machine shaft in the rear end of edge cam cylinder 10
It has been fixedly and coaxially connected the second motor 33.When opening the second motor 33, the second motor 33 drives edge cam cylinder 10 to rotate,
The cam path 20 of 10 outer wall of edge cam cylinder, which drives, pushes pin 9 to push ahead, and pin 9 is pushed to pass through step together with semicircle retainer ring 8
Axis 7 drives cardan shaft 6 to move axially forward, and because revoling tube 3 can not be moved axially with shell 4, central gear 5
Can not move axially, between cardan shaft 6 and central gear 5 for screw thread be socketed relationship, when cardan shaft 6 relative to central gear 5 to
When preceding mobile, cardan shaft 6 drives central gear 5 to be rotated, to drive the deflection of rack 17.
In the vertical plate 34 of spacing distribution, two vertical plates there are two being connected vertically in as a preferred technical scheme, on pedestal 1
Forward and reverse screw rod 11 is arranged on 34, third rotary power part includes: third motor 35, the second worm screw 36, the second worm gear 37；The
Three motors 35 are arranged on pedestal 1, and the second worm gear 37 is set on forward and reverse screw rod 11, and the second worm screw 36 and third motor 35 are dynamic
Power is connected and is engaged with the second worm gear 37.
Pedestal 1 be fixed as one vertically respectively in corresponding second rotation stretching mechanism region Inner Front End with rear end there are two it is parallel
Vertical plate 34, forward and reverse screw rod 11 is cased on two parallel vertical plates 34, forward and reverse screw rod 11 can be with flexible rotating, positive and negative
Forward and reverse fine thread is provided on the region forward to screw rod 11, the coaxial fixing sleeve of tail end of forward and reverse screw rod 11 is connected to second
Worm gear 37 is engaged with the second worm screw 36 in the side of the second worm gear 37, and the second worm screw 36 connects by the way that 36 shaft of the second worm screw is fixed
It is connected to third motor 35, the second motor 33 is fixedly connected on pedestal 1, is covered on forward and reverse screw rod 11 in 36 front of the second worm screw
There is guide sleeve 12, it is cylindrical sleeve tubulose that back segment is leaned on guide sleeve 12, and guide sleeve 12 is even circumferential interval point by leading portion
Cylindrical section casing is same circular arc camber rearward for several gib blocks 38 of cloth, several 38 outer peripheral surfaces of gib block and guide sleeve 12.
The rear end of guide sleeve 12 is coaxially socketed with speed induction machine 13, and speed induction machine 13 can be to the revolving speed of articulated joint guide pipe 14
Incuded and is tested the speed.
In as a preferred technical scheme, it is provided with several gib blocks 38 of circumferentially-spaced on guide sleeve 12, cuts with scissors
Connector guide pipe 14 is provided with several guiding cuttings 39 of circumferentially-spaced, several gib blocks 38 and several 39 phases of guiding cutting
Gap is set to plugging, and the length of gib block 38 and guiding cutting 39 is greater than the axial distance of thread groove 16 on cardan shaft 6.
11 nested domain of forward and reverse screw rod in 12 front of guide sleeve has articulated joint guide pipe 14, and articulated joint guide pipe 14 leans on
The sleeve portion of leading portion is complete cylinder casing, and circumference is fixedly connected with no less than row's (this technology in cylinder casing
Scheme is using two rows of) 8 group of first articulated joint of even circumferential distribution (the group number of circle distribution rotates stretching mechanism with first
17 groups of numbers of rack are identical), the first articulated joint of two rows of circle distributions axially corresponds.In leaning on for articulated joint guide pipe 14
Back segment is integrally fixed with the guiding cutting 39 coincideing with 38 gap of gib block of 12 circle distribution of guide sleeve.Guide sleeve 12
Guiding 39 length of cutting of gib block 38 and articulated joint guide pipe 14 is greater than spiral shell on the cardan shaft 6 inside the first rotation stretching mechanism
The axial length of groove 16.
In as a preferred technical scheme, it is arranged by 3rd bearing 42 in articulated joint guide pipe 14, hinged headgear 15
There is an internal screw thread interstage sleeve 40, internal screw thread interstage sleeve 40 is set in the forward screw thread section of forward and reverse screw rod 11, in reverse thread section, internal screw thread
40 two end faces circle distribution of interstage sleeve has several baffles 41 for extending to articulated joint guide pipe 14, hinged headgear 15.
The forward screw thread section of forward and reverse screw rod 11 rearward is corresponded to inside articulated joint guide pipe 14, in articulated joint guide pipe
40 sets of internal screw thread interstage sleeve of 14 inside settings are in the forward screw thread section of forward and reverse screw rod 11, and 40 inner wall of internal screw thread interstage sleeve is arranged
There is the internal screw thread to match with forward and reverse screw rod 11, be socketed relationship between forward and reverse screw rod 11 for screw thread, is oriented in articulated joint
It is cased with 3rd bearing 42 between pipe 14 and internal screw thread interstage sleeve 40, allows internal screw thread interstage sleeve 40 relative to articulated joint guide pipe 14
It relatively rotates, while 14 end face of articulated joint guide pipe is extended in 40 end face of internal screw thread interstage sleeve, in 40 end face of internal screw thread interstage sleeve
Radially secure integrated several baffles 41 are distributed in place's outer wall even circumferential.In forward and reverse 11 front end reverse thread Duan Yi of screw rod
It is secondary to be cased with internal screw thread interstage sleeve 40,3rd bearing 42 and hinged headgear 15.Row's even circumferential distribution is provided on hinged headgear 15
8 group of second articulated joint, and the second articulated joint on hinged headgear 15 and the first articulated joint on articulated joint guide pipe 14 are along axis
To corresponding.
One has been respectively articulated in the first articulated joint of articulated joint guide pipe 14 and the second articulated joint of hinged headgear 15
Strut 22, it is the second of circle distribution hinged on the first articulated joint of circle distribution and hinged headgear 15 on articulated joint guide pipe 14
22 length of strut of hinged circle distribution is all the same on head, and the other end hinge of strut 22 is dynamic to be connected with top wheel support axis 21, and cuts with scissors
Connector guide pipe 14 moves the strut 22 connected with hinge in three groups of articulated joints on the axial corresponding same straight line of hinged headgear 15
The other end cuts with scissors dynamic three different positions for being connected to same root top wheel support axis 21 simultaneously, so that top wheel support 21 even circumferential of axis point
Cloth is 8 groups and is in horizontality, is begun with strut 22 hinged in 14 same groups of first articulated joints of front and back of articulated joint guide pipe
It is in parallel state, this two struts 22 and top wheel support axis 21 eventually and articulated joint guide pipe 14 forms four bar linkworks, makes
The top wheel support axis 21 of circle distribution is in expansion and receipts when first articulated joint of the proper strut 22 on articulated joint guide pipe 14 rotates
Always horizontality is in when contracting.Coaxial fixing sleeve is connected on every top wheel support axis 21 rotates on stretching mechanism equally with first
The second synchronous belt top wheel 23 of specification.The first synchronous belt top wheel 18 of first rotation stretching mechanism circle distribution and the second rotation
It is concordant that 23 end faces are taken turns on second synchronous belt top of opening mechanism circle distribution.In the first rotation stretching mechanism and the second rotation stretching mechanism
Synchronous belt top wheel on install synchronous belt 2.
When needing to simulate the conical disc transmission principle inside automatic gear-box, the second motor 33, the second motor 33 are opened
Edge cam cylinder 10 is driven to rotate, the cam path 20 of 10 outer wall of edge cam cylinder, which drives, pushes pin 9 to push ahead, and pushes pin
9 drive cardan shaft 6 to move axially forward together with semicircle retainer ring 8 by step axis 7, and because revoling tube 3 and shell 4 can not
Axial movement is socketed relationship between cardan shaft 6 and central gear 5 for screw thread so central gear 5 can not move axially, when pushing away
When moving forward into axis 6 relative to central gear 5, cardan shaft 6 drives central gear 5 to be rotated, to drive central gear 5
Periphery is uniformly distributed that meshed gears bar 17 is synchronous deflect with rotation direction, when rack 17 deflects so that its is corresponding first same
Step band top wheel 18 closes the second motor 33 when being flared to a degree of designated position.Cover at this time first rotation stretching mechanism with
2 swelling of synchronous belt between the synchronous belt top wheel of second rotation stretching mechanism, the synchronous belt 2 of swelling state can be by first at this time
The rotation of the first synchronous belt top wheel 18 on rotation stretching mechanism drives to the second synchronous belt top on the second rotation stretching mechanism
On wheel 23, so that the top wheel support axis 21 of the second rotation stretching mechanism be driven to be rotated with strut 22.
First motor 28 is opened, first motor 28 drives the first worm screw 29 to rotate synchronously, and the first worm screw 29 drives engagement
The rotation of first worm gear 30, the first worm gear 30 drives revoling tube 3 and shell 4 to synchronize rotation, in 4 circumference side through slot of shell
So that the whole progress of the rack 17 of circle distribution is rotated using 3 axis of revoling tube as the center of circle under 19 rib pushes, from
And synchronous belt 2 is driven to rotate, then drive the strut 22 of the second rotation stretching mechanism to rotate, strut 22 drives articulated joint guide pipe
14 rotate synchronously, and because are slidably connected between articulated joint guide pipe 14 and guide sleeve 12 for guiding, to drive guide sleeve
Pipe 12 rotates, and speed induction machine 13 is tested the speed.
In 2 transmission process of synchronous belt, third motor 35 is opened, third motor 35 drives the second worm screw 36 to rotate synchronously,
Second worm screw 36 drives the second worm gear 37 rotation of its engagement, and the second worm gear 37 drives forward and reverse screw rod 11 to rotate synchronously, hingedly
Head guide pipe 14 relatively rotates with the internal screw thread interstage sleeve 40 inside hinged headgear 15 with forward and reverse screw rod 11, so that in two
Screw thread interstage sleeve 40 is moved towards along axial direction, because the baffle 41 of internal screw thread interstage sleeve 40 is oriented to hinged headgear 15 with articulated joint
Pipe 14 carry out it is relatively fixed so that hinged headgear 15 follows its corresponding internal screw thread interstage sleeve 40 to carry out together with articulated joint guide pipe 14
The axial movement of step.When articulated joint guide pipe 14 and hinged headgear 15 axially away from when, strut 22 lifts angle reduction so that
The whole circumference outer diameter of top wheel support axis 21 of circle distribution reduces.When articulated joint guide pipe 14 and hinged headgear 15 axially adjacent to when,
The angle of lifting of strut 22 becomes larger, so that the whole circumference outer diameter of top wheel support axis 21 of circle distribution increases.Pass through the second electricity of operation
Machine 33 and third motor 35 rotate, so that when the whole circumference of the first synchronous belt top wheel 18 of the first rotation stretching mechanism increases,
The whole circumference of the second synchronous belt top wheel 23 of second rotation stretching mechanism reduces, at this time guide sleeve measured by speed induction machine 13
12 revolving speed of pipe increases；When whole circumference is taken turns on the synchronous belt top of the first rotation stretching mechanism to be reduced, the second rotation stretching mechanism
Synchronous belt top is taken turns whole circumference and is increased, and 12 revolving speed of guide sleeve measured by speed induction machine 13 reduces at this time.In the process
Remain that synchronous belt 2 is in swelling state.The whole revolving speed of the first rotation stretching mechanism is fixed at this time, by biography
The revolving speed that the second dynamic rotation stretching mechanism is surveyed, carrys out the conical disc transmission principle inside full simulation automatic gear-box.
Innovative technology point of the invention and beneficial effect at least that:
1. the first rotation stretching mechanism takes turns opposite expansion and contracting simultaneously with the Integral synchronous band top of the second rotation stretching mechanism circumference
It is small, the continually changing mistake of circumference outer diameter is taken turns on the synchronous belt top of Liang Ge mechanism entirety by the first rotation stretching mechanism fixed rotating speed
Intuitively to observe the influence to its revolving speed testing the speed for the synchronous belt top wheel speed to the second rotation stretching mechanism in journey, so as to
Enough conical disc transmission principles clearly understood inside automatic gear-box.
2. 4 inside center gear of shell, the 5 periphery circumference of the first rotation stretching mechanism is engaged with even circumferential distribution simultaneously
Rack 17, while through slot 19 is provided in the region that the circumference side gear bar 17 of shell 4 passes through, so that working as central gear 5
17 Integral synchronous of all racks of circle distribution can be driven to deflect when rotation, so that it is whole to reach the first rotation stretching mechanism
Synchronous belt top takes turns circumference and expands and reduce, to ensure that the synchronous belt top wheel of the first rotation stretching mechanism can unify synchronous receive
Hair.
3. the synchronous belt top wheel of the second rotation stretching mechanism is driven by the rotation of forward and reverse screw rod 11 in its forward and reverse screw thread
Duan Jinhang screw thread socket internal screw thread interstage sleeve 40 simultaneously carry out being axially opposite movement, can make articulated joint guide pipe 14 with hingedly
The hinged strut 22 of the articulated joint of circle distribution lifts angular turn and takes turns support axis 21 to top and realize circumference outer diameter on headgear 15
Expand and reduces.
4. the rear end of cardan shaft 6 is cased with semicircle retainer ring 8, semicircle card by step axis 7 in the first rotation stretching mechanism
Enclose the promotion pin 9 that 8 lower ends are fixedly connected vertically be stuck in lower section be fixedly connected with the second motor 33 edge cam cylinder 10 it is convex
Inside race 20.It can to push pin 9 that step axis 7 is driven to carry out axial reciprocating fortune by the rotation of edge cam cylinder 10
It is dynamic.The front end periphery of cardan shaft 6 is provided with thread groove 16 simultaneously, and 6 front end of cardan shaft is provided with central gear 5 and its thread bush
It connects.Central gear 5 is clamped it by end face bearing 43 inside shell 4 and prevents from moving axially and can make central gear
5 relatively rotate with shell 4, turn so being able to drive the forward and reverse circulation of central gear 5 by the rotation of edge cam cylinder 10
It is dynamic, so as to drive the unified deflection of rack 17.
5. articulated joint guide pipe 14 designs the guiding cutting 39 for having even circumferential to be distributed and having equally-spaced, guide sleeve
12 designs have even circumferential to be distributed and have the gib block 38 of equally-spaced, and articulated joint guide pipe 14 being capable of phase with guide sleeve 12
Mutually insertion coincide is oriented to, be designed as even circumferential distribution gib block 38, guiding cutting 39 can be with axially directed flexible shifting
Stress is eliminated when dynamic to the full extent, speed induction machine 13 is enabled most accurately to measure revolving speed, convenient for being to understand certainly
The conical disc transmission principle of dynamic transmission internal provides effective theoretical foundation.
6. 4 circumference side of shell is uniformly provided with through slot 19 identical with 17 groups of numbers of rack, the through slot 19 of shell 4 can make
It obtains rack 17 and stretches out and realize deflection, and the rib of through slot 19 can drive rack 17 same when shell 4 rotates
Step rotation, to realize the unified rotation of the first rotation stretching mechanism internal synchronization band top wheel.
7. radially secure integrated several baffles 41, baffle is distributed in 40 endface outer wall even circumferential of internal screw thread interstage sleeve
41 gears are on the end face of hinged headgear 15 and articulated joint guide pipe 14, while internal screw thread interstage sleeve 40 and articulated joint guide pipe 14, hinge
It is cased with bearing between fitting sleeve 15, so that hinged headgear 15, articulated joint guide pipe 14 both can mutually occur with internal screw thread interstage sleeve 40
It relatively rotates, inner screw sheath can drive hinged headgear 15, articulated joint guide pipe 14 to synchronize and move along axial direction again.
8. first motor 28 carries out driving rotation to revoling tube 3 by worm gear mechanism, worm gear mechanism has
Self-locking performance, while the slow-speed of revolution can be converted by the high revolving speed of first motor 28, so that the first rotation stretching mechanism inter-sync band
Top wheel is whole with slow rotation, while driving to the low-rotate speed that Integral synchronous band top is taken turns in the second rotation stretching mechanism, so that whole
A process easily facilitates observation.
It, can be to the 9. coaxial fixing sleeve is connected to speed induction machine 13 on guide sleeve 12 in the second rotation stretching mechanism
Integral synchronous band top wheel speed carries out precise measurement in two rotation stretching mechanisms.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of CVT infinitely variable transmission transmission principle simulator characterized by comprising pedestal, the first rotation opening machine
Structure, the second rotation stretching mechanism, synchronous belt；It is described first rotation stretching mechanism include: revoling tube, the first rotary power part,
Shell, central gear, cardan shaft, the first rotation open part, step axis, retainer ring, push pin, edge cam cylinder, the second rotation
Rotatory force part；The second rotation stretching mechanism includes: forward and reverse screw rod, guide sleeve, speed induction machine, third rotary power
Part is opened in part, articulated joint guide pipe, hinged headgear, the second rotation；
The revoling tube is rotatably arranged on the base, the first rotary power part setting on the base with
The revoling tube, which is connected by power, drives the revoling tube rotation, and the revoling tube is connected to the shell, the center
Gear is rotatably arranged in the shell, and the cardan shaft is arranged in the revoling tube and one end runs through the shell
Body is provided with thread groove on the cardan shaft, is provided with internal screw thread in the central gear, and the central gear is by described
Screw thread is set on the cardan shaft after being meshed with the thread groove；The quantity that part is opened in first rotation is multiple, institute
Stating the first rotation to open part includes rack and the first synchronous belt top wheel；It is offered in the peripheral side of the shell multiple logical
One end of slot, multiple racks engages and is circularly and evenly distributed with the central gear, multiple racks it is another
One end passes through the through slot and extends the hull outside and the wheel connection of first synchronous belt top, multiple first synchronous belts
Top wheel surrounds the first rotation and opens circumference, and the other end of the cardan shaft is pierced by the revoling tube and the step axis connects
It connects, the retainer ring sliding is fastened on the step axis, and the retainer ring is connected with the promotion pin, the edge cam vertically
Cylinder is rotatably arranged on the base, the second rotary power part setting on the base with the edge cam
Cylinder, which is connected by power, drives the edge cam cylinder rotation, offers end to end cam on the edge cam cylinder
Slot, the promotion pin card are located in the cam path；
Forward and reverse screw rod is rotatably arranged on the base, and the guide sleeve is set in forward and reverse screw rod
On, the speed induction machine is set on the guide sleeve, third rotary power part setting on the base with institute
It states forward and reverse screw rod and is connected by power drive forward and reverse screw rod rotation, the articulated joint guide pipe, hinged headgear distinguish screw thread
It is set in the forward screw thread section of forward and reverse screw rod, in reverse thread section, the articulated joint guide pipe and the guide sleeve
Feather key connection, it is described second rotation open part quantity be it is multiple, it is described second rotation open part include: top wheel support axis, three
Strut, the second synchronous belt top wheel；Strut described in the top wheel support axis and two of them, articulated joint guide pipe form the hinged machine of four bars
Structure and top wheel support axis and are arranged in parallel with the articulated joint guide pipe, and another strut is hinged on the top wheel support axis and institute
It states between hinged headgear, second synchronous belt top wheel is set on the top wheel support axis, multiple second synchronous belt top wheels
It surrounds the second rotation and opens circumference, the synchronous belt is set in the first rotation opening circumference, the second rotation is opened on circumference.
2. the apparatus according to claim 1, which is characterized in that the long end shaft of the cam path is less than the propulsion to length
The axial length of thread groove on axis.
3. the apparatus according to claim 1, which is characterized in that be provided with fixed block set, the fixing sleeve on the pedestal
The through-hole that front and back penetrates through is offered on seat, is arranged with first bearing in the through-hole, the rotation is arranged in the first bearing
Pivoted housing pipe；The cardan shaft is made of the first propulsion section and second propulsion section two parts, and described first promotes section outer diameter to be less than institute
Revoling tube internal diameter is stated, the thread groove is provided with described first and promotes in section, and described second promotes section and the revoling tube
Second bearing is cased between inner wall.
4. the apparatus according to claim 1, which is characterized in that the other end horizontal connection of the rack has synchronous belt top
Wheel shaft, first synchronous belt top wheel are set on the wheel shaft of the synchronous belt top, former and later two ends are taken turns on first synchronous belt top
Face edge is provided with the circumference platform of protrusion.
5. the apparatus according to claim 1, which is characterized in that the first rotary power part includes: first motor, first
Worm screw, the first worm gear；On the base, first worm gear is set on the revoling tube for the first motor setting,
First worm screw is connected by power with the first motor and engages with first worm gear.
6. the apparatus according to claim 1, which is characterized in that in spacing distribution there are two being arranged on the step axis
Raised circumferential step is arranged the retainer ring, the retainer ring on the step axis between two raised circumferential steps
For semicircle retainer ring, the semicircle retainer ring covers the half that dynamic region is more than the step axis circumference.
7. the apparatus according to claim 1, which is characterized in that in spacing distribution there are two being connected vertically on the pedestal
Vertical rod sleeve is fixed, is arranged with the edge cam cylinder on two fixed vertical rod sleeves, the second rotary power part includes
Second motor, second motor are connected by power with the edge cam cylinder.
8. the apparatus according to claim 1, which is characterized in that in spacing distribution there are two being connected vertically on the pedestal
Vertical plate is arranged with forward and reverse screw rod on two vertical plates, and the third rotary power part includes: third motor, second
Worm screw, the second worm gear；On the base, second worm gear is set in forward and reverse screw rod for the third motor setting
On, second worm screw connect with the third motor power and engages with second worm gear.
9. the apparatus according to claim 1, which is characterized in that if being provided with circumferentially-spaced on the guide sleeve
Dry gib block, the articulated joint guide pipe are provided with several guiding cuttings of circumferentially-spaced, if several gib blocks with
It does the guiding cutting phase gap and sets to plugging, the length of the gib block and the guiding cutting is greater than spiral shell on the cardan shaft
The axial distance of groove.
10. the apparatus according to claim 1, which is characterized in that by the in the articulated joint guide pipe, hinged headgear
Three bearings are provided with internal screw thread interstage sleeve, and the internal screw thread interstage sleeve is set in the forward screw thread section of forward and reverse screw rod, reversed spiral shell
In line section, the internal screw thread interstage sleeve two end faces circle distribution has several gears for extending to the articulated joint guide pipe, hinged headgear
Piece.
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| CN201811164668.4A CN108961986B (en) | 2018-10-06 | 2018-10-06 | CVT stepless speed change box speed change principle simulation device |
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| CN201811164668.4A CN108961986B (en) | 2018-10-06 | 2018-10-06 | CVT stepless speed change box speed change principle simulation device |
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| CN108961986B CN108961986B (en) | 2023-10-20 |
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| CN108961986B (en) | 2023-10-20 |
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