CN1058833A - Speed-changing chain - Google Patents
Speed-changing chain Download PDFInfo
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- CN1058833A CN1058833A CN 90106578 CN90106578A CN1058833A CN 1058833 A CN1058833 A CN 1058833A CN 90106578 CN90106578 CN 90106578 CN 90106578 A CN90106578 A CN 90106578A CN 1058833 A CN1058833 A CN 1058833A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 238000013016 damping Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 3
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- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
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- 230000007812 deficiency Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 208000002193 Pain Diseases 0.000 description 1
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- 230000000739 chaotic effect Effects 0.000 description 1
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- 230000008602 contraction Effects 0.000 description 1
- 238000003967 crop rotation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
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Abstract
The present invention is a kind of working diameter of utilizing moving of slide block to change sprocket wheel, reaches the sprocket transmission of the purpose that changes velocity ratio, is particularly suitable on the bicycle as speed change gear.It has overcome in the speed-change process that speed-changing chain in the past exists the coarse shortcoming of engagement between the chain and sprocket wheel, on the slider guide wheel, be provided with gear shift phase identification device, on helical gear, be provided with the gear shift angle controller, on the frame that speed-changing chain is installed, be provided with the shift lock device, the three is a unified integral body, finishes gear shift control jointly.This cover mechanism has been arranged, and no matter in any situation, gear shift can not make the meshing relation confusion between chain and the sprocket wheel.
Description
The present invention relates to a kind of sprocket transmission, be particularly suitable on bicycle and other bicycle as speed change gear.It can utilize moving of slide block to change the working diameter of sprocket wheel reliably, reaches the purpose that changes velocity ratio.
There is the shortcoming in following in known in the past speed-changing chain:
1. in the speed-change process, meshing incorrect between chain and the sprocket wheel.
2. the error between low-grade location and the high tap position is bigger, and this error makes sprocket transmission meshing inaccuracy on many gears.
For example, a kind of slide block type sprocket speed changing device is disclosed in Chinese model utility (cn86200102).This device has adopted three sprocket pieces and three to hold the chain piece, these six slide blocks are clipped between two garden dishes, wherein the right disk is fixed on the right crank, on radial slide plate is arranged, slide block can be along slide plate slides, the left circles dribbling has common helical, with the rectangle plane threads engaged on the slide block, chain also is between two disks, fixes by pin between two dishes, during gear shift, fixing left side disk rotates right crank, unplugs the pin between two dishes automatically, slide block is moved radially, change the effective diameter of sprocket wheel.The deficiency of this device is, fail to solve sprocket tooth in the gearshift procedure and the meshing problem between the chain, because in chain crop rotation fore and aft motion process, arc length between per two sprocket pieces is in continuous variation, as long as two sprocket pieces and chain interlock are arranged simultaneously, meshing incorrect phenomenon will appear.
The objective of the invention is to improve above-mentioned deficiency, and a kind of product of novel pattern is provided.This product will make every effort to simple in structure and function is strong, adapts to various complex conditions.Only be that example describes below with the bicycle.
Purpose of the present invention can reach by following mode of structure:
Go up at least one slider guide wheel of fixed installation at driving shaft (axis), the slider guide wheel is disc, have several radial crosshead guides above by middle mind-set disk border, a slide block is slidingly installed in each crosshead guide, wherein there are two slide blocks to have sprocket, be called the sprocket slide block, have several sprockets on each sprocket slide block, be used for combining with chain, sprocket slide block equal angles is distributed on the slider guide wheel, install the not slide block of band chain tooth in several crosshead guides between per two sprocket slide blocks, only make the usefulness of support chain, be called holder chain slide block, two kinds of slide blocks of all this are subjected to the restriction of crosshead guide, can only take turns radial direction along slider guide and entad do or centrifugal slip, constitute the approximate discoidal work sprocket wheel of a variable-diameter.
In crosshead guide, move radially and locate in order to control slide block, have helical tooth section in the side of slide block; On driving shaft (axis) helical gear has been installed, helical gear is parallel with the slider guide wheel, and is corresponding with the helical tooth section on the slide block.Have helical on the helical gear,, connects for movable between helical gear and the driving shaft (axis) with the helical tooth section interlock on the slide block, can be with respect to the rotation of slider guide wheel, so that driving sliding block moves radially.When the relative movement of helical gear and slider guide wheel stopped, the diameter of the approximate circle dish type work sprocket wheel that slide block constituted can remain unchanged.The maintenance of relative position is to realize by the frictional damping between the two-wheeled between helical gear and the slider guide wheel.
In order to increase the frictional damping between slider guide wheel and the helical gear, the present invention is interlocked sliding between the two-wheeled, and the tightness regulator is housed.Also can be directly cooperate certain tightness to produce frictional damping with between helical gear and the driving shaft.
In gearshift procedure, the variation of the working chain wheel diameter that slide block constituted is a progressive formation.Not occur the apical tooth phenomenon in the gearshift procedure in order making, must to control, thereby the present invention only installs two sprocket slide blocks on the slider guide wheel the gear shift phase place.Angle between per two sprocket slide blocks equates that two sprocket slide blocks are symmetrical in slider guide wheel center word order.In the rotation, two sprocket slide blocks always replace and the chain interlock, two sprocket slide blocks simultaneously with the phase place of chain interlock, have only when the line of two sprocket slide blocks and just can occur with by the line of movable sprocket the time perpendicular to drive sprocket, if in this phase region gear shift, tooth or apical tooth phenomenon will appear stinging, and make chain and sprocket wheel meshing incorrect, thereby these two phase regions are for forbidding the gear shift district.Remove beyond these two phase regions, at other phase region, have only a sprocket slide block and chain interlock in the same time, thereby above-mentioned phenomenon can not occur.Whole sprocket wheel is forbidden that by above-mentioned two the gear shift phase separation is divided into four phase regions, and two phase regions are to allow gear shift, and two other phase region is forbidden gear shift.
For the above reasons, the present invention is provided with gear shift phase identification device on the slider guide wheel, be provided with the gear shift angle controller on helical gear, is provided with the shift lock device on the frame that this speed-changing chain is installed, the three is a unified integral body, finishes gear shift control jointly.This cover mechanism has been arranged, and no matter under any circumstance, gear shift can not make the meshing relation between chain and the sprocket wheel chaotic.
Purpose of the present invention can also better realize by following mode of structure:
Crosshead guide is radial rectangular hole shape.
Slide block is made of two sectors, and along strip connecting plate of centerline folder, section is " worker " font, can snap in the rectangular hole shape crosshead guide on the slider guide wheel.Have helical tooth section on the sector, have link-supporting plate on another sector or have sprocket.Spring sheet is housed, so that slide block is engaged closely with the slider guide wheel on sector.
Because the slide block type speed-changing chain is to replace the disc sprocket wheel with limited the polygonal that slide block constituted, thereby if adopt common constant velocity spiral:
ρ=ρ
0+ α θ (polar equation)
(wherein: ρ is a polar radius, and θ is a polar angle, and α is a constant, ρ
0Be initial polar radius.）
Make helical gear, there are error in the girth of the formed real work sprocket wheel of polygonal and the girth of disc sprocket wheel, and this error also is different on different gears, and this error makes chain and sprocket interlock inaccuracy, wearing and tearing easily.
In order to eliminate above-mentioned error, the present invention revises common constant velocity spiral, and the polar coordinates equation of revised helical is:
Wherein: ρ is a polar radius, and θ is a polar angle, ρ
0Be initial polar radius,
K is the slide block sum,
α is identical with α in the aforementioned common constant velocity spiral, is a non-zero constant.Be specially:
α＝ (L·N)/(2πφ)
Wherein: L is a zip length, and N is a sprocket slide block sum, φ angle (radian) in relative rotation between helical gear and the slider guide wheel when whenever changing a grade.
Revised constant velocity spiral equation has increased compensating factor than full scale equation:
Have only a variable k in the factor, k is the slide block sum, and k is big more, and the factor is more near 1.
Adopt speed-changing chain that above-mentioned revised constant velocity spiral makes on any gear all with real disc sprocket wheel equivalence fully, do not have any error, thereby, improved the practicability of slide block type speed-changing chain greatly.
Gear shift phase identification device is the cam ring structure, it can be installed on the slider guide wheel, allowing the gear shift phase region and forbidding on the gear shift phase place section, the height difference of cam ring, so that be used for identifying which phase region is to allow the gear shift phase region, which phase region is to forbid the gear shift phase region, in forbidding the gear shift phase region, its effect is that the bayonet lock jack-up on the shift lock device is come, the shift lock device can not be locked helical gear, thereby, forbidding that the gear shift behavior appears in gear shift phase region never.This meshing perseverance of just having guaranteed chain and sprocket wheel is for correct.
Gear shift phase identification device basic shape is circular, is fixedly mounted on the outward edge of slider guide wheel, is symmetrical in the center of circle, and the circular arc of two projectioies is arranged, and whole annulus is divided into four phase regions.The section of annulus is " U " shape, has the ring-type chute.
The gear shift angle controller is the annulus that has the helical gear locking notch, and it is installed on the helical gear, also can directly leave the helical gear locking notch on helical gear, and formation is the gear shift angle controller of one with helical gear.Helical gear locking notch on the gear shift angle controller is that equal angles distributes, and the number of helical gear locking notch depends on the number of sprocket slide block on the speed-changing chain and whenever changes the angle that the slider guide wheel is rotated in one grade of process.During gear shift, the bayonet lock on the shift lock device will snap in the helical gear locking notch on the gear shift angle controller, and helical gear can not be rotated with the slider guide wheel, thereby, make between the two-wheeled to produce relative rotation, realize gear shift.
Gear shift angle controller basic shape is circular, and annulus is installed in respectively on the helical gear by two semicircular ring and constitutes, and two semicircular ring joints are equipped with respectively adjusts wrench with two semicircular ring to the tightness of drawing together.The section of annulus is " h " shape, has a circle ring slider.
The shift lock device mainly is made up of bayonet lock, spring and bayonet lock sliding support, and the bayonet lock that is being slidingly installed on the bayonet lock sliding support is equipped with spring between support and bayonet lock, backguy is housed on the bayonet lock, links to each other with Gear-shift switch on being installed in bicycle handlebar.
During gear shift, stir Gear-shift switch, bayonet lock is subjected to the thrust spring effect, and the top is to gear shift phase identification device and gear shift angle controller, and snaps in after allowing the gear shift phase region to arrive in the helical gear locking notch on the gear shift angle controller, and helical gear is pinned.
Be two embodiments of the present invention below:
Fig. 1 adopts the front view of the speed-changing chain of a slider guide wheel (1) and a helical gear (2) formation for the present invention.
Fig. 2 is the sectional drawing of the I-I of speed-changing chain shown in Figure 1.
Fig. 3 is the sectional drawing of the II-II of speed-changing chain shown in Figure 1.
Fig. 4 has helical tooth section (13) above for the view of the one side that has helical tooth section of the holder chain slide block of Fig. 1 to the speed-changing chain shown in Figure 3.
Fig. 5 is the view along radial direction of holder chain slide block.
Slide block is made of two sector therebetween, one strip connecting plate, and section is " worker " font, can snap in the rectangular hole shape crosshead guide on the slider guide wheel.Have helical tooth section (13) on the sector, have link-supporting plate (23) on another sector or have sprocket.Spring sheet (24) is housed on sector.
Fig. 6 is the view of the one side that has helical of helical gear (2).
Have helical tooth (12) above, be used for and the slide block interlock.Along the outer rim of helical gear (2), suit gear shift angle controller (7), has helical gear locking notch (15) on gear shift angle controller (7).
Fig. 7 is the view of gear shift phase identification device (6).
Gear shift phase identification device (6) basic shape is circular, is fixedly mounted on the outward edge of slider guide wheel (1), is symmetrical in the center of circle, and the circular arc (18) of two projectioies is arranged, and whole annulus is divided into four phase regions.The section of annulus is a flute profile, has ring-type chute (10) above.(seeing III-III)
Fig. 8 is the view of gear shift angle controller (7).
Gear shift angle controller (7) basic shape is circular, and annulus is installed on the helical gear (2) respectively by two semicircular ring and constitutes, and two semicircular ring joints are equipped with respectively adjusts wrench (14) with two semicircular ring to the tightness of drawing together.The section of annulus is " h " shape, has a ring slide block (25).(seeing IV-IV)
Fig. 9 is the sectional drawing of shift lock device (8).
Bayonet lock (26) is slidingly mounted on the bayonet lock sliding support, and thrust spring (19) is housed between support and the bayonet lock (26).Wire rope (21) is housed on the bayonet lock (26), links to each other with gear shift spanner (27) on being installed in bicycle handlebar.
Figure 10 is the sectional view of bayonet lock (26).
Section is flat rectangle, so that can contact with gear shift angle controller (7) with gear shift phase identification device (6) simultaneously.
Figure 11 is the schematic representation of Gear-shift switch (22).
The gear shift spanner has friction disk on (27), and between the fixed friction dish on the base damping is arranged, so that can keep the impaction state of thrust spring (19) during not gear shift.
Figure 12 scheme of installation that is speed-changing chain on the bicycle.
Speed-changing chain is installed on the axis, and Gear-shift switch (22) is installed on the bicycle handlebar, and shift lock device (8) is installed on the cycle frame, and chain tensioner (28) has been installed in addition, so that unnecessary portion of chain is tightened up.
Figure 13 takes turns the fragmentary cross-sectional view of the speed-changing chain of (29) and two helical gears (30) formation for adopting two slider guides.
Below, in conjunction with the accompanying drawings, embodiment is done a nearly step explanation.
Referring to Fig. 1 to Figure 12, slider guide wheel (1) is a disc, and center portion and axle sleeve (9) are fixed together, and axle sleeve (9) will be installed on the bicycle middle shaft, and connecting lever (20) is fixedlyed connected with axle sleeve (9).Thereby, rotate pedal connecting lever (20) slider guide wheel (1) is rotated.
Have slotted hole shape crosshead guide (3) on the slider guide wheel (1), slide block (4,5) flip sleeve is contained in the crosshead guide (3), slide block (4,5) constitute by two sector therebetween stripe board, when being installed in the slider guide wheel (1), rectangular plate holder is in crosshead guide (3), two sectors appear at the two sides of slider guide wheel (1) respectively, a slice has helical tooth section (13), helical tooth (12) interlock with on the helical gear (2) has link-supporting plate or sprocket on another sheet, engage with bicycle chain.Mounting spring sheet (24) can make slide block (4,5) keep engaging closely with slider guide wheel (1), not rattling.Gear shift phase identification device (6) is fixed with rivet or screw rod with the edge of slider guide wheel (1).
Gear shift angle controller (7) is made of two semi-rings, so that the ring slider (25) on the gear shift angle controller (7) can be snapped in the ring-type chute (10) on the gear shift phase identification device (6), after snapping in, passing sprocket wheel error adjustment hole (16) with screw rod is fixed on gear shift angle controller (7) on the helical gear (2), and by tightness adjust wrench (14) with two semi-rings toward tension together, make an amount of frictional damping of generation between ring slider (25) and the ring-type chute (10), tightness is adjusted the adjustable tightness of wrench (14), after the adjustment, screw rod (17) is tightened.Sprocket wheel error adjustment hole (16) is the arc strip hole, and it makes the relative angle can regulate between gear shift angle controller (7) and the helical gear (2), so that adapt to the chain of the different degrees of wear.
Have two protruding circular arcs (18) on the gear shift phase identification device (6), have four helical gear locking notches (15) on the gear shift angle controller (7), shift lock device (8) is installed on the bicycle frame, during not gear shift, bayonet lock (26) does not contact with gear shift angle controller (7) with gear shift phase identification device (6), by the pulling force of wire rope (21) compression thrust spring (19) state that remains retracted.The pulling force of wire rope (21) maintains by the damping between the friction disk on the Gear-shift switch (22).
During gear shift, stir the gear shift spanner (27) on the Gear-shift switch (22), wire rope (21) is loosened, bayonet lock (26) on the shift lock device (8) is under the promotion of thrust spring (19), withstand on the gear shift phase identification device (6), turning block upper saw pulley (1), bayonet lock (26) slides along the edge of gear shift phase identification device (6), when protruding circular arc (18) and bayonet lock (26) when contacting, bayonet lock (26) can not be contacted with gear shift angle controller (7) by jack-up, can't snap in the helical gear locking notch (15), thereby, can not pin helical gear (2), can not gear shift.Thereby, prevented to carry out gear shift in non-gear shift phase place.When arrive in the drop edge of gear shift phase identification device (6), bayonet lock (26) is not subjected to the effect of protruding circular arc (18), then push up on the edge of gear shift angle controller (7), and on the edge of gear shift angle controller (7), slide, up to running into helical gear locking notch (15), can head in the helical gear locking notch (15), helical gear (2) is pinned, make helical gear (2) can not take turns (1) and rotate with slider guide.Being rotated further slider guide wheel (1) then relatively rotates owing to having produced between slider guide wheel (1) and the helical gear (2), slide block (4,5) going up helical tooth (12) along helical gear (2) slides, simultaneously, make slide block (4,5) generation moves radially, when relatively rotating 1/4th circumference between slider guide wheel (1) and the helical gear (2), just in time make the girth of the formed work sprocket wheel of slide block (4,5) increase (acceleration) or reduce (deceleration) two chain links long, at this moment, another protruding circular arc (18) arrives, with bayonet lock (26) jack-up, helical gear (2) is released, and finishes a gear shift.
After this, during whole nearly quadrant, protruding circular arc (18) is being controlled and is being forbidden the gear shift phase region, at this moment, two kinds of selections is arranged, if stir gear shift spanner (27), wire rope (21) is tightened up, and then whole gearshift procedure finishes; If do not stir gear shift spanner (27), but be rotated further slider guide wheel (1), then bayonet lock (26) is gone up at protruding circular arc (18) and is continued to slide, and all goes over until protruding circular arc (18), then begins to take turns new gearshift procedure automatically.
Thereby, the present invention can realize gear shift continuously automatically, and owing to closely cooperating of gear shift phase identification device (6) and gear shift angle controller (7) and shift lock device (8), make the present invention no matter under any circumstance all can not produce integrating error, remain the correct meshing relation between sprocket wheel and the chain.
The unnecessary chain that goes out can tighten up automatically when making low-grade location, and chain tensioner (28) has been installed on bicycle frame.Chain tensioner (28) is the contraction pole structure, and draught spring is equipped with in inside.
Referring to Figure 13, this is embodiments of the invention 2, and the sectional drawing of half speed-changing chain that only drawn is being fixed two slider guide wheels (29) on axle sleeve (36), and chain is on the slide block that hangs between two slider guide wheels (29).Present embodiment has been equivalent to use the speed-changing chain of two previous embodiment 1 in fact, two speed-changing chains are antisymmetry each other, combines, and difference is, the shape of slide block is different with embodiment 1, is equivalent to per two antisymmetric each other slide blocks of previous embodiment 1 have been synthesized one.
Slider guide wheel (29) is equivalent to the slider guide wheel (1) among the embodiment 1.
Helical gear (30) is equivalent to the helical tooth (2) among the embodiment 1.
Helical tooth (31) is equivalent to the helical tooth (12) among the embodiment 1.
Sprocket slide block (32) is equivalent to the sprocket slide block (4) among the embodiment 1.
Gear shift phase identification device (33) is equivalent to the gear shift phase identification device (6) among the embodiment 1.
Gear shift angle controller (34) is equivalent to the gear shift angle controller (7) among the embodiment 1.
Ring washer (35) is equivalent to the ring washer (11) among the embodiment 1.
Use above-mentioned two parts among the embodiment 2, difference is wherein to have one to be antisymmetry with another.
Axle sleeve (36) is equivalent to embodiment 1 axle sleeve (9).
The bayonet lock of the shift lock device that present embodiment is used is wideer than embodiment 1, so that can control two antisymmetric each other sprocket wheels simultaneously.
The advantage of present embodiment is, owing to only bear pressure, no side direction torsion, so it is very thin that slider guide wheel (29) and helical gear (30) all can be done, good reliability is durable, attractive in appearance, anti-approaching, higher as if technological level, this speed-changing chain holds out broad prospects.
Claims (10)
1, a kind of by slide block, the sprocket transmission that slider guide wheel and helical gear constitute, it is characterized in that one or two slider guide wheel of fixed installation on driving shaft, have several radial crosshead guides above the slider guide wheel by middle mind-set disk border, a slide block is slidingly installed in each crosshead guide, in all slide blocks, there are two slide blocks to have sprocket, have helical tooth section in the side of slide block, helical gear is housed on driving shaft, helical gear is parallel with the slider guide wheel, have helical on the helical gear, with the helical tooth section interlock on the slide block, connect for movable between helical gear and the driving shaft, keep relative position by the frictional damping between the two-wheeled between helical gear and the slider guide wheel, the slider guide wheel is provided with gear shift phase identification device, and helical gear is provided with the gear shift angle controller, and the frame that this speed-changing chain is installed is provided with the shift lock device.
2, by the described sprocket transmission of claim 1, it is characterized in that crosshead guide is radial rectangular hole shape.
3, by the described sprocket transmission of claim 1, it is characterized in that slide block is made of two sectors, along strip connecting plate of centerline folder, section is " worker " font, have helical tooth section on the sector, have link-supporting plate on another sector or have sprocket, spring sheet is housed on sector.
4, by the described sprocket transmission of claim 1, it is characterized in that the polar coordinates equation of helical is:
Wherein: ρ is a polar radius, and θ is a polar angle, ρ
0Be initial polar radius,
K is the slide block sum,
α is a non-zero constant, is specially:
α＝ (N·L)/(2π·φ)
Wherein: L is a zip length, and N is a sprocket slide block sum, φ angle (radian) in relative rotation between helical gear and the slider guide wheel when whenever changing a grade.
5,, it is characterized in that being interlocked with annular groove and ring slider slip between slider guide wheel and the helical gear, and the tightness regulator is housed by the described sprocket transmission of claim 1.
6, by the described sprocket transmission of claim 1, it is characterized in that gear shift phase identification device is the cam ring structure, allowing the gear shift phase region and forbidding on the gear shift phase place section height difference of cam ring.
7, by claim 1 or the described sprocket transmission of claim 6, it is characterized in that being symmetrical in the center of circle on the cam ring of gear shift phase identification device, the circular arc that two projectioies are arranged, whole annulus is divided into four phase regions, and the section of annulus is " U " shape, has the ring-type chute.
8, by the described sprocket transmission of claim 1, it is characterized in that the gear shift angle controller is the annulus that has the helical gear locking notch, the helical gear locking notch on the gear shift angle controller is that equal angles distributes.
9, by claim 1 or the described sprocket transmission of claim 8, it is characterized in that gear shift angle controller annulus is installed in respectively on the helical gear by two semicircular ring and constitutes, two semicircular ring joints are equipped with tightness respectively adjusts wrench, the section of annulus is " h " shape, has a circle ring slider.
10, by the described sprocket transmission of claim 1, it is characterized in that the shift lock device is made up of bayonet lock, spring and bayonet lock sliding support, the bayonet lock that is being slidingly installed on the bayonet lock sliding support is equipped with spring between support and bayonet lock, backguy is housed on the bayonet lock, links to each other with Gear-shift switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90106578 CN1019598B (en) | 1990-08-04 | 1990-08-04 | Speed changing chain wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90106578 CN1019598B (en) | 1990-08-04 | 1990-08-04 | Speed changing chain wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1058833A true CN1058833A (en) | 1992-02-19 |
| CN1019598B CN1019598B (en) | 1992-12-23 |
Family
ID=4880166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90106578 Expired CN1019598B (en) | 1990-08-04 | 1990-08-04 | Speed changing chain wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1019598B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062196A (en) * | 2009-06-02 | 2011-05-18 | 杨鲁川 | Equivalent diameter adjustable chain wheel device, stepless speed change device and power system |
| CN102069891A (en) * | 2009-11-23 | 2011-05-25 | 卞焕永 | A transmission shift for bicycle |
| CN102278437A (en) * | 2010-06-10 | 2011-12-14 | 尹孝谦 | Diameter changeable wheel disc speed changing mechanism |
| CN107906172A (en) * | 2017-11-16 | 2018-04-13 | 东莞市松研智达工业设计有限公司 | Gear transmission mechanism with transmission ratio reduced along with speed increase |
| CN111889817A (en) * | 2020-08-10 | 2020-11-06 | 湖南飞阳齿轮制造有限责任公司 | Numerical control gear chamfering machine for gear machining |
-
1990
- 1990-08-04 CN CN 90106578 patent/CN1019598B/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062196A (en) * | 2009-06-02 | 2011-05-18 | 杨鲁川 | Equivalent diameter adjustable chain wheel device, stepless speed change device and power system |
| CN102069891A (en) * | 2009-11-23 | 2011-05-25 | 卞焕永 | A transmission shift for bicycle |
| CN102278437A (en) * | 2010-06-10 | 2011-12-14 | 尹孝谦 | Diameter changeable wheel disc speed changing mechanism |
| CN107906172A (en) * | 2017-11-16 | 2018-04-13 | 东莞市松研智达工业设计有限公司 | Gear transmission mechanism with transmission ratio reduced along with speed increase |
| CN111889817A (en) * | 2020-08-10 | 2020-11-06 | 湖南飞阳齿轮制造有限责任公司 | Numerical control gear chamfering machine for gear machining |
| CN111889817B (en) * | 2020-08-10 | 2021-11-02 | 湖南飞阳齿轮制造有限责任公司 | Numerical control gear chamfering machine for gear machining |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1019598B (en) | 1992-12-23 |
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