CN105508546A - Stepless speed stabilizing device - Google Patents

Stepless speed stabilizing device Download PDF

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Publication number
CN105508546A
CN105508546A CN201510975596.1A CN201510975596A CN105508546A CN 105508546 A CN105508546 A CN 105508546A CN 201510975596 A CN201510975596 A CN 201510975596A CN 105508546 A CN105508546 A CN 105508546A
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CN
China
Prior art keywords
speed governing
speed
friction wheel
hub splines
connecting base
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Granted
Application number
CN201510975596.1A
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Chinese (zh)
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CN105508546B (en
Inventor
罗海峰
林洁雯
刘浩
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Hunan Agricultural University
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Hunan Agricultural University
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Priority to CN201510975596.1A priority Critical patent/CN105508546B/en
Publication of CN105508546A publication Critical patent/CN105508546A/en
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Publication of CN105508546B publication Critical patent/CN105508546B/en
Expired - Fee Related legal-status Critical Current
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H37/00Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/12Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Friction Gearing (AREA)
  • Transmissions By Endless Flexible Members (AREA)

Abstract

The invention discloses a stepless speed stabilizing device comprising a power input gear (4) and a speed reducing gear (7) fixedly arranged on a spline shaft (6), wherein the power input gear is meshed with the speed reducing gear. The spline shaft is slidably connected with a spline shaft sleeve (3), a ring groove (26) is formed in one end of the spline shaft sleeve, a cylindrical speed regulating friction wheel (2) is fixedly arranged at the other end of the spline shaft sleeve, and the working surface of the cylindrical speed regulating friction wheel is tightly pressed together with the working surface of a conical speed regulating friction wheel (1) located at one end of a speed regulating shaft (12); a speed regulating ball mechanism (9) is arranged in the middle of the speed regulating shaft, and a speed increasing gear (13) is connected to the tail end of the speed regulating shaft and is meshed with an output gear (10); and a lever mechanism (8) is connected between the spline shaft sleeve and the speed regulating ball mechanism, the speed regulating ball mechanism and the lever mechanism drive the spline shaft sleeve to slide on the spline shaft to realize the change of pressing positions of the cylindrical speed regulating friction wheel and the conical speed regulating friction wheel, and furthermore the output speed of the speed regulating shaft is stabilized.

Description

A kind of stepless speed stabilizer device
Technical field
The present invention relates to a kind of mechanical speed governors structure, be specifically related to a kind of stepless speed stabilizer device.
Background technique
China more and more payes attention to the development of farm machinery, in farm machinery application process, tractor account for very large proportion, some cultivated scarification equipments, seeding and fertilizing machinery, transplanting machinery, field management machinery, harvest machinery etc. are all by carrying out work with the connection of tractor, therefore in the process of transmission of power, speed can change a lot, and causes the speed when mechanical work not stablize output.
The present invention is devoted to solve tractor and exports unstable problem with the speed being connected machinery, and break away from high cost, with simple machinery type, the speed of stable output makes work mechanism better can work under stable speed.
Summary of the invention
The technical problem to be solved in the present invention is, exports unstable problem for mechanical speed in prior art, provide a kind of simple and reasonable, cheap for manufacturing cost, make the stepless speed stabilizer device that precision is high, stable output, power consumption are little.
For solving the problems of the technologies described above, the present invention adopts following solution:
A kind of stepless speed stabilizer device, comprise the power input gear be contained on input shaft and the reduction gear be installed on splined shaft, and this power input gear engages with reduction gear; This splined shaft connects hub splines by spline slide, one end on this hub splines is provided with circular groove, and the other end of this hub splines is fixedly connected with cylindrical speed governing friction wheel, the working surface of this cylindrical speed governing friction wheel compresses with the working surface of the taper speed governing friction wheel being positioned at speed governing axle one end and is connected; The middle part of this speed governing axle is equiped with speed governing ball mechanism, and this speed governing the tip of the axis is fixedly connected with overdrive gear, and this overdrive gear engages with the output gear be positioned on output shaft; One leverage is connected between the circular groove of hub splines and speed governing ball mechanism, hub splines is driven to slide on splined shaft by speed governing ball mechanism, leverage, and realize the change of the compacted position of cylindrical speed governing friction wheel working surface and taper speed governing friction wheel working surface, and then realize the stable of speed governing axle output speed.
This speed governing ball mechanism comprises the slide rail connecting base be slidably located on speed governing axle and the speed governing ball supporting sleeve be fixedly connected on speed governing axle, the outer circumferential face of this slide rail connecting base is provided with endless glide, the inner peripheral surface of one guide rail sleeve is provided with circular groove, the circular groove of this guide rail sleeve is enclosed within the endless glide of this slide rail connecting base, guide rail sleeve is slidably located on slide rail connecting base, and does not rotate with the rotation of slide rail connecting base; The outside of this speed governing ball supporting sleeve is evenly hinged with multiple speed governing club rotated with speed governing axle, the end of each speed governing club connects speed governing bead respectively, and one end of the hinged catch bar of the middle part of each speed governing club difference, the other end of this catch bar is hinged on the front end of slide rail connecting base, make moving radially of speed governing club be delivered to slide rail connecting base by catch bar, and realize slide rail connecting base, the moving axially of guide rail sleeve.
This leverage comprises the first flexible rod and the second flexible rod that are connected, and arrange balance pivot between this first and second flexible rod, this balance pivot is fixed on casing; One end first stud connection collar of this first flexible rod, this collar is set in the circular groove of hub splines one end, and cover ring diameter is greater than circular groove and is less than hub splines, make relatively rotate between the collar and circular groove, and the collar can drive hub splines to move axially together; One end of this second flexible rod is by the square adjustable lever of the second stud connection, and this square adjustable lever is connected with the lever connecting groove on guide rail sleeve is detachable.
This collar is the spring collar.
The angle of this speed governing axle and hub splines is the half of taper speed governing friction wheel cone angle.
During original state, this cylindrical speed governing friction wheel is connected to the neutral position of this taper speed governing friction wheel.
When the present invention uses, the speed reduction that will input is engaged first by input gear and reduction gear, the speed subtracted is passed to by the cylindrical speed governing friction wheel be contained on hub splines on the speed governing axle that taper speed governing friction wheel is housed, due to the unstability of speed, the speed governing bead of speed governing club end is caused to rotate with rotating speed, and corner constantly changes, when speed reduces, the amplitude of fluctuation of speed governing bead reduces, by the leverage effect between speed governing ball mechanism and speed governing axle, whole hub splines is regulated to the direction that taper speed governing friction wheel radius increases, thus realize the relative increase of speed governing axle speed, in like manner, when speed increases, the effect of relatively slowing down can be reached, finally, realize speedup by the adjustment of overdrive gear and output gear velocity ratio and export.
The invention has the advantages that, solve existing tractor speed and export unstable problem, the power acted on by speed governing ball mechanism drives the change of the leverage Indirect method taper speed governing friction wheel radius of clean-up to carry out stabilized speed, obtain required speed, and many places use gear in transmittance process, so that better, more precisely, more stable adjustment, from practical standpoint, really deal with problems from cost, the speed issue produced is solved in simple mechanically operated mode, and the present invention to make volume little, conveniently put and use.The present invention has the series of advantages such as simple and reasonable, low cost of manufacture, transmission performance are good, practical, power consumption is little, solves the problem of mechanical output speed instability, and reaches innovation to a certain extent.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of stepless speed stabilizer device of the present invention.
Fig. 2 is the perspective view of stepless speed stabilizer device of the present invention.
Fig. 3 is the speed governing spherical structure schematic diagram of stepless speed stabilizer device of the present invention.
Fig. 4 is the lever construction schematic diagram of stepless speed stabilizer device of the present invention.
Fig. 5 is the splined shaft linkage structure schematic diagram of stepless speed stabilizer device of the present invention.
In figure: 1. taper speed governing friction wheel 2. cylindrical speed governing friction wheel 3. hub splines 4. power input gear 5. input shaft 6. splined shaft 7. reduction gear 8. leverage 9. speed governing ball mechanism 10. output gear 11. output shaft 12. speed governing axle 13. overdrive gear 14. guide rail sleeve 15. lever connecting groove 16. slide rail connecting base 17. catch bar 18. speed governing club 19. speed governing ball supporting sleeve 20. collar 22. flexible rod 23. balance pivot 24. flexible rod 21, 25. first, the square adjustable lever of two hinge 26. circular grooves 27..
Embodiment
As Figure 1-Figure 5, stepless speed stabilizer device one embodiment of the present invention comprises the power input gear 4 be contained on input shaft 5 and the reduction gear 7 be installed on splined shaft 6, and this power input gear 4 engages with reduction gear 7.This splined shaft 6 connects hub splines 3 by spline slide, and hub splines 3 is wide identical with the key of splined shaft 6, and bond distance is identical, the thick difference of key.One end on this hub splines 3 external cylindrical surface is provided with circular groove 26, and the other end of this hub splines 3 is fixedly connected with cylindrical speed governing friction wheel 2, this cylindrical speed governing friction wheel 2 compresses with the taper speed governing friction wheel 1 being positioned at speed governing axle 12 one end and is connected, with transmission of power reduction gear 7 transmitted to taper speed governing friction wheel 1.On the right of taper speed governing friction wheel 1, speed governing ball mechanism 9 is equipped with at the middle part of this speed governing axle 12.One leverage 8 is connected between hub splines 3 and speed governing ball mechanism 9.The end of this speed governing axle 12 is fixedly connected with overdrive gear 13, and this overdrive gear 13 engages with the output gear 10 be positioned on output shaft 11.
This speed governing ball mechanism 9 comprises the slide rail connecting base 16 be slidably located on speed governing axle 12 and the speed governing ball supporting sleeve 19 be fixedly connected on by key on speed governing axle 12.The cylindrical outer side face of this slide rail connecting base 16 is provided with endless glide (not shown), the cylindrical inner side surface of one guide rail sleeve 14 is provided with circular groove, the circular groove of this guide rail sleeve 14 is enclosed within the endless glide of this slide rail connecting base 16, guide rail sleeve 14 is slidably located on slide rail connecting base 16, and can not rotates with the rotation of slide rail connecting base 16.The outside of this speed governing ball supporting sleeve 19 is evenly hinged with four speed governing clubs 18 rotated with speed governing axle 12, the end of each speed governing club 18 connects speed governing bead respectively, and one end of the hinged catch bar 17 of the middle part of each speed governing club 18 difference, the other end of this catch bar 17 is hinged on the front end of slide rail connecting base 16, make moving radially of speed governing club 18 be delivered to slide rail connecting base 16 by catch bar 17, and realize slide rail connecting base 16, the moving axially of guide rail sleeve 14.
This leverage 8 comprises the first flexible rod 22 and the second flexible rod 23 be connected, and arrange balance pivot 23 between this first and second flexible rod 22,23, this balance pivot 23 is bolted on casing.One end first hinge 21 of this first flexible rod 22 connects the collar 20, this collar 20 is set in the circular groove 26 of hub splines 3 one end, and the collar 20 diameter is greater than the diameter of circular groove 26 and is less than the external diameter of hub splines 3, make relatively rotate between the collar 20 and circular groove 26, but can not axial relative movement, and the collar 20 can drive hub splines 3 to move axially together.One end of this second flexible rod 24 connects square adjustable lever 27 by the second hinge 25, this square adjustable lever 27 is connected for detachable with the lever connecting groove 15 on the guide rail sleeve 14 of speed governing ball mechanism 9, in this way, leverage 8 is removably connected on guide rail sleeve 14, be convenient to dismounting, installation and maintenance, and can rotate around first and second hinge 21,25.This collar 20 is the spring collar, the collar 20 can be dismantled from the circular groove 26 hub splines 3 and install by external force.
In the present embodiment, hub splines 3 and speed governing axle 12 are fixed on casing by bearing, and speed governing axle 12 is the half of taper speed governing friction wheel 1 cone angle with the angle of hub splines 3, can realize cylindrical speed governing friction wheel 2 and move along the teeth directional direction of taper speed governing friction wheel 1 working surface.
Working principle and the process of the present embodiment stepless speed stabilizer device are as follows:
Stepless speed stabilizer device of the present invention is under the effect of power input gear 4, the reduction gear 7 be engaged with is slowed down, by the connection of splined shaft 6 and hub splines 3 by transmission of power to cylindrical speed governing friction wheel 2, cylindrical speed governing friction wheel 2 and the mutual pressing of taper speed governing friction wheel 1, and then by transmission of power on speed governing axle 12, the rotation of speed governing axle 12 drives the speed governing ball supporting sleeve 19 of speed governing ball mechanism 9 to rotate, and then drive the rotation of speed governing club 18, when the speed of power input gear 4 increases, the corresponding increase of rotating speed of speed governing axle 12, speed governing club 18 is under centrifugal action, turning radius increases gradually, slide rail connecting base 16 and guide rail sleeve 14 is driven to be moved to the left by catch bar 17, guide rail sleeve 14 is moved to the left and drives the leverage 8 be attached thereto to be moved to the left, and then drive the hub splines 3 be connected with leverage 8 to be moved to the left, then the minor diameter direction of cylindrical speed governing friction wheel 2 along taper speed governing friction wheel 1 to taper speed governing friction wheel 1 is driven to move, the speed of speed governing axle 12 is increased, cylinder type speed governing friction wheel 2 continues to be moved to the left, when cylindrical speed governing friction wheel 2 moves to equal with taper speed governing friction wheel 1 radius, cylindrical speed governing friction wheel 2 carries out 1:1 with taper speed governing friction wheel 1 and passes speed, when speed continues to increase again, cylindrical speed governing friction wheel 2 is moved to the left, taper speed governing friction wheel 1 slows down, institute's retardation equals the speed that power source increases, therefore, output speed is still the speed that cylindrical speed governing friction wheel 2 and taper speed governing friction wheel 1 carry out when 1:1 passes speed, otherwise, when speed reduces, cylindrical speed governing friction wheel 2 moves right, cylindrical speed governing friction wheel 2 carries out speedup transmission with taper speed governing friction wheel 1, the speed increased equals the speed that power source reduces, therefore, output speed is still the speed that cylindrical speed governing friction wheel 2 and taper speed governing friction wheel 1 carry out when 1:1 passes speed.If the initial position that cylindrical speed governing friction wheel 2 and taper speed governing friction wheel 1 compress to be arranged on the neutral position of taper speed governing friction wheel 1, the stable of output speed just can be realized.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is also not only confined to above-described embodiment.For those skilled in the art, do not departing from the improvement that obtains under the technology of the present invention concept thereof and conversion also should be considered as protection scope of the present invention.

Claims (6)

1. a stepless speed stabilizer device, comprise the power input gear (4) be contained on input shaft (5) and the reduction gear (7) be installed on splined shaft (6), and this power input gear engages with reduction gear, it is characterized in that, this splined shaft connects hub splines (3) by spline slide, one end on this hub splines is provided with circular groove (26), and the other end of this hub splines is fixedly connected with cylindrical speed governing friction wheel (2), the working surface of this cylindrical speed governing friction wheel compresses with the working surface of the taper speed governing friction wheel (1) being positioned at speed governing axle (12) one end, the middle part of this speed governing axle is equiped with speed governing ball mechanism (9), and this speed governing the tip of the axis is fixedly connected with overdrive gear (13), and this overdrive gear engages with the output gear (10) be positioned on output shaft (11), one leverage (8) is connected between the circular groove of hub splines and speed governing ball mechanism, hub splines is driven to slide on splined shaft by speed governing ball mechanism, leverage, and realize the change of the compacted position of cylindrical speed governing friction wheel working surface and taper speed governing friction wheel working surface, and then realize the stable of speed governing axle output speed.
2. a kind of stepless speed stabilizer device according to claim 1, it is characterized in that, this speed governing ball mechanism (9) comprises the slide rail connecting base (16) be slidably located on speed governing axle (12) and the speed governing ball supporting sleeve (19) be fixedly connected on speed governing axle, the outer circumferential face of this slide rail connecting base is provided with endless glide, the inner peripheral surface of one guide rail sleeve (14) is provided with circular groove, the circular groove of this guide rail sleeve is enclosed within the endless glide of this slide rail connecting base, guide rail sleeve is slidably located on slide rail connecting base, and does not rotate with the rotation of slide rail connecting base; The outside of this speed governing ball supporting sleeve is evenly hinged with multiple speed governing club (18) rotated with speed governing axle, the end of each speed governing club connects speed governing bead respectively, and the one end at the middle part of each speed governing club hinged catch bar of difference (17), the other end of this catch bar is hinged on the front end of slide rail connecting base (16), make moving radially of speed governing club be delivered to slide rail connecting base by catch bar, and realize slide rail connecting base, the moving axially of guide rail sleeve.
3. a kind of stepless speed stabilizer device according to claim 1, it is characterized in that, this leverage (8) comprises the first flexible rod (22) and the second flexible rod (23) that are connected, and arrange balance pivot (23) between this first and second flexible rod, this balance pivot is fixed on casing; One end first hinge (21) of this first flexible rod connects the collar (20), this collar is set in the circular groove (26) of hub splines one end, and cover ring diameter is greater than circular groove and is less than hub splines, make relatively rotate between the collar and circular groove, and the collar can drive hub splines to move axially together; One end of this second flexible rod connects square adjustable lever (27) by the second hinge (25), and this square adjustable lever is connected with the lever connecting groove (15) on guide rail sleeve (14) is detachable.
4. a kind of stepless speed stabilizer device according to claim 1, is characterized in that, this collar is the spring collar.
5. a kind of stepless speed stabilizer device according to claim 1, is characterized in that, the angle of this speed governing axle and hub splines is the half of taper speed governing friction wheel cone angle.
6. a kind of stepless speed stabilizer device according to claim 1, is characterized in that, during initialization, this cylindrical speed governing friction wheel is pressed on the neutral position of this taper speed governing friction wheel.
CN201510975596.1A 2015-12-23 2015-12-23 A kind of stepless speed stabilizer device Expired - Fee Related CN105508546B (en)

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CN201510975596.1A CN105508546B (en) 2015-12-23 2015-12-23 A kind of stepless speed stabilizer device

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Application Number Priority Date Filing Date Title
CN201510975596.1A CN105508546B (en) 2015-12-23 2015-12-23 A kind of stepless speed stabilizer device

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CN105508546B CN105508546B (en) 2017-11-21

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109058134A (en) * 2018-08-20 2018-12-21 东莞市松研智达工业设计有限公司 A kind of fan

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191300590A (en) * 1913-07-01 1913-11-13 Edward Dodson Improvements in the Arrangement of the Components of Frictional-driven Mechanisms of Motor Vehicles.
JP2004316874A (en) * 2003-04-10 2004-11-11 Tsutomu Kikuchi Automatic transmission
CN102506134A (en) * 2011-12-27 2012-06-20 广东戈兰玛汽车系统有限公司 Novel CRT (cone ring transmission) system
CN103671782A (en) * 2012-09-19 2014-03-26 李志强 Stepless speed change device
WO2015105424A1 (en) * 2014-01-10 2015-07-16 Howeva B.V. Continuously variable transmission

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191300590A (en) * 1913-07-01 1913-11-13 Edward Dodson Improvements in the Arrangement of the Components of Frictional-driven Mechanisms of Motor Vehicles.
JP2004316874A (en) * 2003-04-10 2004-11-11 Tsutomu Kikuchi Automatic transmission
CN102506134A (en) * 2011-12-27 2012-06-20 广东戈兰玛汽车系统有限公司 Novel CRT (cone ring transmission) system
CN103671782A (en) * 2012-09-19 2014-03-26 李志强 Stepless speed change device
WO2015105424A1 (en) * 2014-01-10 2015-07-16 Howeva B.V. Continuously variable transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109058134A (en) * 2018-08-20 2018-12-21 东莞市松研智达工业设计有限公司 A kind of fan

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