CN110439982A - A kind of connecting rod tooth-type stepless transmission - Google Patents
A kind of connecting rod tooth-type stepless transmission Download PDFInfo
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- CN110439982A CN110439982A CN201910790114.3A CN201910790114A CN110439982A CN 110439982 A CN110439982 A CN 110439982A CN 201910790114 A CN201910790114 A CN 201910790114A CN 110439982 A CN110439982 A CN 110439982A
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- ratchet
- cam
- connecting rod
- gear
- stepless transmission
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The present invention relates to a kind of connecting rod tooth-type stepless transmissions, belong to the parts such as mechanical transmission fields, including input driver structure, speed adjusting gear, eccentric wheel mechanism, ratchet and pawl arrangement, output mechanism.Input shaft rotation drives worm and gear rotation, jackshaft rotation drives two eccentric wheels and wedge block to rotate together, the rotary motion of eccentric wheel is converted into sliding block linear motion by the reciprocally swinging of rocking bar, sliding block acts on rotary motion of the ratchet gear teeth further by its transform linear motion for ratchet by pawl, ratchet is connect with output shaft by flat key, ratchet wheel drives output shaft rotation, L-type frame and thread spindle are engaged by screw thread, L-type frame drives wedge block to move continuously in axial direction in cam while rotating with cam, the present invention overcomes tradition machinery stepless transmission system pulsation degree is big, inertia force and moment of inertia are difficult to the defect balanced, realize invariable power transmission, transmission ratio is adjustable, the purpose of design of large carrying capacity and power down protection.
Description
Technical field
The present invention relates to mechanical transmission fields, more particularly to a kind of connecting rod tooth-type stepless transmission.
Background technique
Traditional speed changer is typically all the step change transmission that is made of several pairs of gears, by by the gear of different drive ratios
It is engaged, realizes the change of output revolving speed and torque, that there are operational efficiency is low, structure is complicated, and speed-change process is unstable etc. asks
Topic, is unable to satisfy demand of the people to mechanical stepless speed change.
Traditional pulse-type continuously variable transmission exist the pulsation degree of output movement greatly, link motion when the inertia force that generates with
And caused by freewheel clutch self structure the deficiencies of too low load-carrying properties, and traditional mechanical continuously-variable transmission speed
Although can accurately control, all have the shortcomings that volume is big, bearing capacity is low and the service life is short.
Summary of the invention
The invention proposes a kind of connecting rod tooth-type stepless transmissions, solve existing mechanical continuously-variable transmission and exist
Pulsation degree it is big, bearing capacity is low, the service life is short, bulky problem.
The technical scheme is that: a kind of connecting rod tooth-type stepless transmission, including input driver structure, governor
The parts such as structure, eccentric wheel mechanism, ratchet and pawl arrangement, output mechanism.
The input driver structure includes a pair of small bearing, input shaft worm screw, worm gear, jackshaft, axle sleeve, two axis
It holds, flat key, two wedge blocks, two eccentric wheels, the pair of small bearing is mounted on input shaft worm screw two sides, the input shaft snail
Bar and worm gear are meshed, and the worm gear and jackshaft are bonded by flat key, and the two sides of the jackshaft are equipped with bearing holder (housing, cover), and described two
A wedge block and two eccentric wheels match, and two eccentric wheels and two wedge blocks rotate under jackshaft drive, and with 180 degree
Movement input is realized in phase angle distribution.
The speed adjusting gear includes bevel-gear sett, thread spindle, axle sleeve, bearing, snap ring, left L-type frame, right L-type frame, institute
The bevel-gear sett stated is intermeshed, and bevel gear wheel and screw thread axle key connect in the bevel-gear sett, and the thread spindle is logical
It crosses key to be connected with bevel gear wheel, the left L-type frame and right L-type frame are connected by being threadedly engaged with thread spindle, described
Snap ring withstands on bearing outer end face.
The eccentric wheel mechanism includes wedge block, cam, and the wedge block is matched with cam, and wedge block drives convex
While wheel rotation, continuous linear movement is also done in cam.
The ratchet and pawl arrangement includes two pawls, ratchet, sliding block, slideway, connecting rod, cam, wedge block, described
Wedge block is matched with cam, and the cam is connected with connecting rod, and the connecting rod connection sliding block, the sliding block is in slideway
Middle sliding, the sliding block are also connected with two pawls simultaneously, and two pawls are meshed with ratchet.
The output mechanism includes output shaft, ratchet, bearing, and the ratchet is matched with bearing, the output
Axis links together with the ratchet bearing worked good.
Input shaft, output shaft, jackshaft and the thread spindle is arranged in juxtaposition.
Two eccentric wheels and two wedge blocks are with 180 degree phase distribution.
When the wedge block is made rotating motion together by helicitic texture and cam, by changing in wedge block in cam
In position so that change cam eccentric away from.
Two ratchets assemble two active pawls respectively, and two pawl alternating actions are in the ratchet gear teeth, further
Reduce pulsation.
The thread spindle and threaded L-type frame cooperate, and it is continuous straight to say that rotary motion is converted into using screw thread rotation
Line movement.
The eccentric wheel uses the eccentricity for adjusting eccentric wheel to realize the length for adjusting crank, finally as crank
Realize function of stepless speed regulation.
The ratchet mechanism is connected by sliding block with cam rocker arm mechanism, and the slideway of sliding block is fixed.
The pawl ratchet and eccentric wheel speed adjusting gear cooperates, real by way of changing and adjusting click transmission ratio
Existing stepless speed regulation.
The beneficial effects of the present invention are:
The present invention is using cam link combined mechanism as the generating mechanism of pulsation, using double cam Agency ratchet and pawl arrangement
The design combined effectively overcomes the poor disadvantage of power performance.By the consecutive variations of angled-lift splits position in cam come
Change cam eccentric away from realization stepless speed regulation.
The present invention sets the cooperation by helicitic texture, double eccentric wheel mechanism and two-way ratchet, overcomes traditional variable speed
Device system pulsation degree is big, and inertia force and moment of inertia are difficult to the defect balanced, can reach invariable power transmission, transmission ratio is adjustable,
The purpose of design of large carrying capacity and power down protection.
Detailed description of the invention
Fig. 1 is general structure schematic diagram of the invention；
Fig. 2 is input driver structure schematic diagram；
Fig. 3 is speed adjusting gear schematic diagram；
Fig. 4 is eccentric wheel mechanism schematic diagram；
Fig. 5 is click structural schematic diagram；
Fig. 6 is export structure schematic diagram；
In figure: 1. input shafts, 2. worm screws, 3. worm gears, 4. jackshafts, 5. wedge blocks, 6. cams, 7. ratchets, 8. pawls, 9. are shaken
Bar, 10. output shafts, 11. bevel gear wheels, 12. bevel pinions, 13. thread spindles, 14.L type frame, 15. slideways, 16. sliding blocks.
Specific embodiment
Present invention specific implementation is described in further detail with reference to the accompanying drawing:
A kind of connecting rod tooth-type stepless transmission, by input driver structure, speed adjusting gear, eccentric wheel mechanism, ratchet and pawl arrangement,
The part such as output mechanism forms, as shown in Figure 1.The rotation of input shaft 1 drives the rotation of 2 worm gear 3 of worm screw, and 3 key of worm gear connects jackshaft 4,
The rotation of jackshaft 4 drives two eccentric wheels 6 and wedge block 5 to rotate together, and eccentric wheel 6 connects ratchet 7 by rocking bar 9 and sliding block 16
Pawl 8, the rotary motion of eccentric wheel 6 are converted into after sliding block 16 moves in a straight line in slideway 15 by the reciprocally swinging of rocking bar 9
The rotary motion that 7 gear teeth of ratchet are further converted to ratchet 7, ratchet 7 and output shaft 10 is acted on by pawl 8 to connect by flat key
It connects, the rotation of ratchet 7 drives output shaft 10 to rotate, and realizes that the double reduction output of movement, if desired stepless speed regulation then utilize size
Bevel gear 11 (12) engagement drives thread spindle 13 to rotate, and L-type frame 14 and thread spindle 13 are engaged by screw thread, and thread spindle 13 rotates most
Make eventually L-type frame 14 do along jackshaft survey direction linear motion, L-type frame 14 drive wedge block 5 with cam 6 rotate while
Axially continuous moving in cam 6.The cooperation of wedge block 5 and eccentric wheel 6, so that the axial movement of wedge block 5 changes bias
The eccentricity of wheel completes stepless speed regulation by the change of eccentricity.
The input driver structure includes a pair of small bearing, input shaft worm screw, worm gear, jackshaft, axle sleeve, two bearings, puts down
Key, two wedge blocks, two eccentric wheels, as shown in Figure 2.The pair of small bearing is mounted in input shaft worm screw two sides, the input
Axis worm and worm wheel are meshed, and the worm gear is bonded by flat key with jackshaft, and the two sides of the jackshaft are equipped with bearing holder (housing, cover), institute
It states two wedge blocks and two eccentric wheels matches, two eccentric wheels and two wedge blocks rotate under jackshaft drive, and with
Movement input is realized in the distribution of 180 degree phase angle.
The speed adjusting gear includes bevel-gear sett, thread spindle, axle sleeve, bearing, snap ring, left L-type frame, right L-type frame, such as Fig. 3
It is shown.The bevel-gear sett is intermeshed, and bevel gear wheel and screw thread axle key connect in the bevel-gear sett, the spiral shell
Line axis is connected by key with bevel gear wheel, and the left L-type frame and right L-type frame are connected by being threadedly engaged with thread spindle,
The snap ring withstands on bearing outer end face.
The eccentric wheel mechanism includes wedge block, cam etc., as shown in Figure 4.The wedge block is matched with cam, wedge
While block band moving cam rotates, continuous linear movement is also done in cam.
The ratchet and pawl arrangement includes two pawls, ratchet, sliding block, slideway, connecting rod, cam, wedge block, as shown in Figure 5.
The wedge block is matched with cam, and the cam is connected with connecting rod, the connecting rod connection sliding block, the sliding block
It is slided in slideway, the sliding block is also connected with two pawls simultaneously, and two pawls are meshed with ratchet.
The output mechanism includes output shaft, ratchet, bearing etc., as shown in fig. 6, the ratchet is matched with bearing, institute
The output shaft stated links together with the ratchet bearing worked good.
Input shaft, output shaft, jackshaft and the thread spindle is arranged in juxtaposition.
Two eccentric wheels and two wedge blocks are with 180 degree phase distribution.
When the wedge block is made rotating motion together by helicitic texture and cam, by changing in wedge block in cam
In position so that change cam eccentric away from.
Two ratchets assemble two active pawls respectively, and two pawl alternating actions are in the ratchet gear teeth, further
Reduce pulsation.
The thread spindle and threaded L-type frame cooperate, and it is continuous straight to say that rotary motion is converted into using screw thread rotation
Line movement.
The eccentric wheel uses the eccentricity for adjusting eccentric wheel to realize the length for adjusting crank, finally as crank
Realize speed regulation during the motion.
The ratchet mechanism is connected by sliding block with cam rocker arm mechanism, and the slideway of sliding block is fixed.
The pawl ratchet and eccentric wheel speed adjusting gear cooperates, real by way of changing and adjusting click transmission ratio
Existing stepless speed regulation.
The above-mentioned embodiment relatively good for the present invention, does not limit the present invention with this.Therefore, based on innovation of the invention
Device is modified and is changed to embodiment described herein, is included in scope of patent protection of the invention.
Claims (9)
1. a kind of connecting rod tooth-type stepless transmission, it is characterised in that: by input driver structure, speed adjusting gear, eccentric wheel mechanism,
The part such as ratchet and pawl arrangement, output mechanism forms；
The input driver structure includes a pair of small bearing, input shaft worm screw, worm gear, jackshaft, axle sleeve, two bearings, puts down
Key, two wedge blocks, two eccentric wheels, the pair of small bearing are mounted in input shaft worm screw two sides, the input shaft worm screw and snail
Wheel is meshed, and the worm gear is bonded by flat key with jackshaft, and the two sides of the jackshaft are equipped with bearing holder (housing, cover), described two wedges
Block and two eccentric wheels match, and two eccentric wheels and two wedge blocks rotate under jackshaft drive, and with 180 degree phase angle
Movement input is realized in distribution；
The speed adjusting gear includes bevel-gear sett, thread spindle, axle sleeve, bearing, snap ring, left L-type frame, right L-type frame, described
Bevel-gear sett is intermeshed, and the bevel gear wheel in the bevel-gear sett is connect with thread spindle by spline, the left L
Type frame and right L-type frame is engaged through the thread is connected with thread spindle, the snap ring withstands on bearing outer end face；
The eccentric wheel mechanism includes wedge block, cam, and the wedge block is matched with cam, and wedge block band moving cam turns
While dynamic, continuous linear movement is also done in cam；
The ratchet and pawl arrangement includes two pawls, ratchet, sliding block, slideway, connecting rod, cam, wedge block, the wedge
Block is matched with cam, and the cam is connected with connecting rod, the connecting rod connection sliding block, and the sliding block is sliding in slideway
Dynamic, the sliding block is also connected with two pawls simultaneously, and two pawls are meshed with ratchet；
The output mechanism includes output shaft, ratchet, bearing, and the ratchet is connected by bearing with output shaft.
2. a kind of connecting rod tooth-type stepless transmission according to claim 1, which is characterized in that the input shaft, defeated
Shaft, jackshaft and thread spindle are arranged in juxtaposition.
3. a kind of connecting rod tooth-type stepless transmission according to claim 1, which is characterized in that two eccentric wheels
With two wedge blocks with 180 degree phase distribution.
4. a kind of connecting rod tooth-type stepless transmission according to claim 1, which is characterized in that the wedge block passes through
When threaded connection and cam make rotating motion together, change cam eccentric in position of the wedge block in cam by changing
Away from.
5. a kind of connecting rod tooth-type stepless transmission according to claim 1, which is characterized in that two ratchets point
Not Zhuan Pei two active pawls, two pawl alternating actions the ratchet gear teeth come further decrease pulsation.
6. a kind of connecting rod tooth-type stepless transmission according to claim 1, which is characterized in that the thread spindle and band
The L-type frame of screw thread cooperates, and converts continuous linear motion for rotary motion using screw thread rotation.
7. a kind of connecting rod tooth-type stepless transmission according to claim 1, which is characterized in that the eccentric wheel conduct
Crank uses the eccentricity for adjusting eccentric wheel to realize the length for adjusting crank, finally realizes speed-regulating function.
8. a kind of connecting rod tooth-type stepless transmission according to claim 1, which is characterized in that the ratchet mechanism is logical
It crosses sliding block to be connected with cam rocker arm mechanism, the slideway of sliding block is fixed.
9. according to a kind of connecting rod tooth-type stepless transmission described in claim 1, which is characterized in that the pawl ratchet and partially
The cooperation of heart wheel speed adjusting gear adjusts the transmission ratio realization stepless speed regulation of click by changing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910790114.3A CN110439982B (en) | 2019-08-26 | 2019-08-26 | Connecting rod tooth-meshed type continuously variable transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910790114.3A CN110439982B (en) | 2019-08-26 | 2019-08-26 | Connecting rod tooth-meshed type continuously variable transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110439982A true CN110439982A (en) | 2019-11-12 |
| CN110439982B CN110439982B (en) | 2020-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910790114.3A Expired - Fee Related CN110439982B (en) | 2019-08-26 | 2019-08-26 | Connecting rod tooth-meshed type continuously variable transmission |
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| Country | Link |
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| CN (1) | CN110439982B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112318036A (en) * | 2020-11-16 | 2021-02-05 | 董继江 | Connecting device is separated with symmetry disc formula to machining |
| CN112610672A (en) * | 2020-12-08 | 2021-04-06 | 安徽工程大学 | Design method of crank and rocker mechanism of rotation and reciprocating swing conversion device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6131758A (en) * | 1984-07-23 | 1986-02-14 | Seiroku Sasauchi | Gear system non-stage transmission |
| CN2128983Y (en) * | 1992-06-13 | 1993-03-31 | 陕西机械学院 | Juxtaposition connecting rod type impulsive motion stepless speed variator |
| CN101398069A (en) * | 2007-09-24 | 2009-04-01 | 麦妙玲 | Continuously variable transmission |
| CN107939933A (en) * | 2017-11-17 | 2018-04-20 | 中国人民解放军陆军装甲兵学院 | A kind of gear connecting rod pulse-type continuously variable transmission |
| CN108180269A (en) * | 2017-12-11 | 2018-06-19 | 王鑫弘 | Prime mover and the power such as speed reducer and slow-speed of revolution accelerating transmission gear and generator combination generating set |
-
2019
- 2019-08-26 CN CN201910790114.3A patent/CN110439982B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6131758A (en) * | 1984-07-23 | 1986-02-14 | Seiroku Sasauchi | Gear system non-stage transmission |
| CN2128983Y (en) * | 1992-06-13 | 1993-03-31 | 陕西机械学院 | Juxtaposition connecting rod type impulsive motion stepless speed variator |
| CN101398069A (en) * | 2007-09-24 | 2009-04-01 | 麦妙玲 | Continuously variable transmission |
| CN107939933A (en) * | 2017-11-17 | 2018-04-20 | 中国人民解放军陆军装甲兵学院 | A kind of gear connecting rod pulse-type continuously variable transmission |
| CN108180269A (en) * | 2017-12-11 | 2018-06-19 | 王鑫弘 | Prime mover and the power such as speed reducer and slow-speed of revolution accelerating transmission gear and generator combination generating set |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112318036A (en) * | 2020-11-16 | 2021-02-05 | 董继江 | Connecting device is separated with symmetry disc formula to machining |
| CN112610672A (en) * | 2020-12-08 | 2021-04-06 | 安徽工程大学 | Design method of crank and rocker mechanism of rotation and reciprocating swing conversion device |
| CN112610672B (en) * | 2020-12-08 | 2022-06-03 | 安徽工程大学 | Design method of crank and rocker mechanism of rotation and reciprocating swing conversion device |
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| Publication number | Publication date |
|---|---|
| CN110439982B (en) | 2020-09-25 |
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