CN109473083A - A kind of string micro-adjusting mechanism of planet-gear transmission - Google Patents
A kind of string micro-adjusting mechanism of planet-gear transmission Download PDFInfo
- Publication number
- CN109473083A CN109473083A CN201811427701.8A CN201811427701A CN109473083A CN 109473083 A CN109473083 A CN 109473083A CN 201811427701 A CN201811427701 A CN 201811427701A CN 109473083 A CN109473083 A CN 109473083A
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- CN
- China
- Prior art keywords
- shaft
- string
- planet
- pin
- gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 37
- 238000013016 damping Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims 1
- 238000005096 rolling process Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 235000015110 jellies Nutrition 0.000 description 3
- 239000008274 jelly Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10D—STRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR
- G10D3/00—Details of, or accessories for, stringed musical instruments, e.g. slide-bars
- G10D3/14—Tuning devices, e.g. pegs, pins, friction discs or worm gears
-
- 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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
-
- 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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
-
- 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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
- F16H2001/325—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear comprising a carrier with pins guiding at least one orbital gear with circular holes
-
- 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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
- F16H2001/327—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear with orbital gear sets comprising an internally toothed ring gear
Abstract
The present invention relates to stringed musical instrument tuning device, the string micro-adjusting mechanism of specifically a kind of planet-gear transmission.Including abutment sleeve axis, the spool shaft being rotatably arranged in abutment sleeve axis, the positioning core axle being rotatably arranged in spool shaft and adjustment device;Adjusting device includes the annular groove being fixed on abutment sleeve axis and the knob for being rotatably arranged on annular groove outer rim, one end of spool shaft is located in annular groove and is coaxially fixed with pin disk, biasing transmission shaft is eccentrically provided in knob, it rotates coaxially on biasing transmission shaft equipped with planetary gear, planetary gear is connected by meshing transmission with the ring gear being located on annular groove inner edge, multiple pin holes are also provided on planetary gear, the pin shaft with the cooperation of pin hole inscribe is correspondingly provided on pin disk, and the diameter of axle of pin shaft is less than the aperture of pin hole so that planetary gear can drive pin disk to rotate.The present invention can be realized the fine tuning of string elasticity, and noise is small when tuning a stringed instrument, and be influenced by temperature, humidity small.
Description
Technical field
The present invention relates to stringed musical instrument tuning device, the string of specifically a kind of planet-gear transmission is finely tuned
Mechanism.
Background technique
The stringed musical instruments such as violin, violoncello are required before use by tuning a stringed instrument, optimal to guarantee to have when playing
Tone color is tuned a stringed instrument particularly important for violin.
The stringed musical instruments such as violin, violoncello are also craftworks while as instrumental music, the requirement to shape, size
The design difficulty of height, mechanism of tuning a stringed instrument automatically is big.
Through hole usually is opened up at scroll head position at present, solid wooden stick of tuning a stringed instrument is inserted into two holes, string is consolidated
Determine and be coiled in tune a stringed instrument on stick, stick of tuning a stringed instrument is rotated by tuning a stringed instrument the knob on stick and tuned a stringed instrument, tuned up.Make in this way not
String can be finely adjusted, so that low precision of tuning a stringed instrument, inconvenient, easily qin itself be caused to wear when tuning up every time.By temperature,
Humidity etc. is affected, and when use can generate biggish noise, and the precision and quality tuned a stringed instrument will receive influence, make for a long time
With ineffective.
Summary of the invention
The present invention is intended to provide a kind of string micro-adjusting mechanism of planet-gear transmission, can be realized string elasticity
Fine tuning, noise is small when tuning a stringed instrument, and is influenced by temperature, humidity small.
In order to solve the above technical problems, the technical solution adopted by the present invention are as follows: a kind of planet-gear transmission
String micro-adjusting mechanism, including abutment sleeve axis, rotate coaxially the spool shaft being arranged in abutment sleeve axis, rotate coaxially setting exist
Positioning core axle in spool shaft and the adjustment device that string fine tuning is realized for driving spool shaft to rotate, abutment sleeve axis and
Two opposite perforation that positioning core axle was respectively used to and was provided with scroll head position are fixed, and the part of spool shaft is by abutment sleeve axis
Middle stretching is for string coiling;Adjustment device includes the annular groove being coaxially fixed on abutment sleeve axis and rotates coaxially setting
In the knob of annular groove outer rim, spool shaft is located in annular groove far from its one end for coiling string part and coaxially fixation is set
Have pin disk, be eccentrically provided with biasing transmission shaft in knob, bias and rotated coaxially on transmission shaft equipped with planetary gear, planetary gear with
Ring gear on annular groove inner edge is connected by meshing transmission, and multiple pin holes are also provided on planetary gear, on pin disk
It is correspondingly provided with the pin shaft with the cooperation of pin hole inscribe, and the diameter of axle of pin shaft is less than the aperture of pin hole so that planetary gear can drive pin
Disk rotation.
Preferably, spool shaft is provided with the step for radial positioning far from its one end for coiling string part, in pin disk
Center offer the mounting hole being coupled with step.
Preferably, positioning core axle is distributed in annular groove far from its one end for being coupled part with scroll head and cooperates peace
Equipped with check ring, check ring is used for the axially position of abutment sleeve axis, spool shaft and positioning core axle.
Preferably, spool shaft and positioning core axle are multi-diameter shaft, and spool shaft includes that clearance fit is mounted on abutment sleeve axis
In reduced diameter section reel inner shaft and for string coiling enlarged diameter section reel outer shaft, positioning core axle include clearance fit peace
The locating core inner shaft of reduced diameter section in spool shaft and locating core outer shaft for being fixedly connected with scroll head position.
Preferably, the outer diameter of abutment sleeve axis, reel outer shaft and locating core outer shaft is identical.
Preferably, the string hole for fixing string is equipped on the axial plane of reel outer shaft.
Preferably, the axis hole for installing biasing transmission shaft is offered on knob, biasing transmission shaft is multi-diameter shaft, small straight
Diameter section part passes through tight fit and is mounted in axis hole, and remainder is coupled with planetary gear centre bore, and the shaft shoulder is for real
Existing planetary gear axially position effect.
Preferably, the convex edge being rotatably assorted with the outer rim of annular groove is equipped in the inner edge of knob;It is sliding in convex edge and annular
The jelly for increasing damping ratio is respectively provided at the cooperation of slot and at the cooperation of planetary gear and ring gear.
Preferably, planetary gear is roller gear.
Preferably, it is respectively provided between increase and qin body and rubs on the axial plane of abutment sleeve axis and locating core outer shaft
The convex stripe of power.
Beneficial effect
String micro-adjusting mechanism of the invention specifically uses planet-gear transmission, and planetary gear is that eccentric wheel can be with internal tooth
Circle engages, and locating core outer shaft and abutment sleeve axis are separately fixed at two opposite perforation being opened on scroll head in the course of work
In, so that locating core outer shaft and abutment sleeve shaft position are fixed.Turning knob, planetary gear are engaging simultaneously phase with ring gear
When to rotation, the pin hole on planetary gear drives the pin shaft and reel inner shaft rotation tangent with it, and generates the rotation with knob
Angle is compared and its small corner, carries out elastic fine tuning to the string being fixed on reel outer shaft to realize.
The present invention is simple using planet-gear transmission positioning, has the characteristics that vibration is small, noise is low, can increase
The accuracy tuned a stringed instrument, it is most important for work of tuning a stringed instrument.Planet-gear transmission mode of the invention simultaneously can be reduced
The complexity of entire micro-adjusting mechanism, reduces cost, greatly reduces occupied space, and it is narrow to can be very good adaptation working space
The characteristics of, and the weight of entire micro-adjusting mechanism is reduced, guarantee that mechanism is simple and compact.
Detailed description of the invention
Fig. 1 is configuration schematic diagram of the invention;
Fig. 2 is the schematic diagram of the section structure of the invention;
Fig. 3 is the schematic perspective view of the annular groove part in the present invention;
Fig. 4 is the schematic perspective view of the knob portion in the present invention;
Fig. 5 is the structural schematic diagram that the pin shaft on pin hole and fluted disc on planetary gear is coupled;
Marked in the figure: 1, knob, 101, convex edge, 102, axis hole, 2, biasing transmission shaft, 3, planetary gear, 301, pin hole, 4, spring
Retaining ring, 5, pin disk, 501, pin shaft, 6, abutment sleeve axis, 601, annular groove, 602, ring gear, 7, spool shaft, 701, in reel
Axis, 702, reel outer shaft, 8, positioning core axle, 801, locating core inner shaft, 802, locating core outer shaft.
Specific embodiment
As shown in Figures 1 and 2, the string micro-adjusting mechanism that a kind of small teeth number difference planet gear 3 of the invention is driven, including positioning
Quill 6 rotates coaxially the spool shaft 7 being arranged in abutment sleeve axis 6, rotates coaxially the locating core being arranged in spool shaft 7
Axis 8 and adjustment device.The rotation of adjustment device can drive spool shaft 7 and its small corner to be rotated, to realize
Elastic fine tuning is carried out to the string being fixed on reel outer shaft 702.
Spool shaft 7 and positioning core axle 8 are multi-diameter shaft.Spool shaft 7 includes the reduced diameter section and enlarged diameter section being coaxially distributed,
Reduced diameter section forms reel inner shaft 701 and clearance fit is mounted in abutment sleeve axis 6, the reel outer shaft that enlarged diameter section is formed
702 are distributed in 6 outside of abutment sleeve axis and coil fixation for string, and the string fixed for string is offered on reel outer shaft 702
Hole.Positioning core axle 8 equally includes the reduced diameter section and enlarged diameter section being coaxially distributed, the locating core inner shaft 801 that reduced diameter section is formed
Clearance fit is mounted in spool shaft 7, and the locating core outer shaft 802 that enlarged diameter section is formed with scroll head position for being fixedly connected.It is fixed
The outer diameter of position quill 6, reel outer shaft 702 and locating core outer shaft 802 is identical.In the application, entirety of the invention can be worn
It is fixed in two opposite perforation that scroll head position opens up, the outer rim of abutment sleeve axis 6 and one of perforation tight fit are solid
Fixed, the outer rim of locating core outer shaft 802 is tightly fixed with another perforation, so that reel outer shaft 702 is located between two perforation
Position fixed with string, and spool shaft 7 can then pass through reel relative to 8 flexible rotating of abutment sleeve axis 6 and positioning core axle
The rotation of axis 7 is to adjust the tensioning degree of string.In order to guarantee the present invention stability fixed with qin body, in abutment sleeve axis 6
The convex stripe of frictional force between the perforation being respectively provided on the axial plane of locating core outer shaft 802 in increase and qin body.
Adjustment device includes coaxially being fixed on the annular groove 601 of 6 upper end of abutment sleeve axis and rotating coaxially to be arranged in ring
The knob 1 of 601 outer rim of shape sliding slot.The convex edge 101 being rotatably assorted with the outer rim of annular groove 601 is equipped in the inner edge of knob 1, and
The jelly for increasing damping ratio is equipped at the cooperation of convex edge 101 and annular groove 601.Annular groove 601 and knob 1 divide
Not not as shown in Figures 3 and 4.The upper end of reel inner shaft 701 is located in annular groove 601 and is coaxially fixed with pin disk 5, rotational pin
Disk 5 can drive spool shaft 7 to rotate according to same speed.Axis hole 102, tight fit in axis hole 102 are eccentrically provided in knob 1
The biasing transmission shaft 2 of ladder shaft-like is installed.The reduced diameter section part of biasing transmission shaft 2 is mounted on axis hole 102 by tight fit
In, the centre bore of remainder and the planetary gear 3 of Cylinder Gear colyliform is coupled, the shaft shoulder for realizing planetary gear 3 axis
To positioning action, planetary gear 3 is connected by meshing transmission with the ring gear 602 being arranged on 601 inner edge of annular groove, and in planet
The jelly for increasing damping ratio is again provided at the cooperation of gear 3 and ring gear 602.As shown in figure 5, in planetary gear 3
On be also provided with multiple pin holes 301, the pin shaft 501 with the cooperation of pin hole 301 inscribe, and pin shaft 501 are correspondingly provided on pin disk 5
The diameter of axle is less than the aperture of pin hole 301 so that planetary gear 3 can drive pin disk 5 to rotate.Turning knob 1 passes through biasing transmission shaft 2
To drive 7 axis of winding reel axis revolution while engaging rotation with ring gear 602 of planetary gear 3, the drive of pin hole 301 and its phase
Rotational speed of the pin shaft 501 cut with biggish reduction ratio with respect to knob 1, then the rotation of band movable reel outer shaft 702 is tuned a stringed instrument.
The number of teeth of planetary gear 3 is set as Z2, the number of teeth of ring gear 602 is Z1, it is however noted that Z2With Z1It
Between, it cannot numerically differ too big, to avoid there is the phenomenon that planetary gear 3 cannot be engaged with ring gear 602.
Assuming that the corner of knob 1 is denoted as, the corner of planetary gear 3 (equal with 5 revolving speed of pin disk) is denoted as.Knob 1 with
Corner (i.e. the corner of the spool shaft 7) relationship for selling disk 5 is as follows:。
In the present embodiment, takeIt brings into known to above formula:.It is enclosed in this way in the rotation of knob 17,
Reel outer shaft 702 can rotate 1 circle, thus illustrate, the present invention is capable of providing sufficiently large reduction ratio, and then can accurately tune a stringed instrument
Meet actual need of work.
In the present embodiment, the upper end of 7 inner shaft of spool shaft is provided with the step for radial positioning, in the centre bit of pin disk 5
Set the mounting hole for offering and being coupled with step.The step-like setting of positioning core axle 8 can also be to abutment sleeve axis 6, spool shaft 7
Play the role of axially position, the upper end of locating core inner shaft 801 is distributed in annular groove 601 and is fitted with check ring 4,
Check ring 4 is used for the axially position of abutment sleeve axis 6, spool shaft 7 and positioning core axle 8.
Claims (10)
1. a kind of string micro-adjusting mechanism of planet-gear transmission, it is characterised in that: including abutment sleeve axis (6), coaxially
The spool shaft (7) that is rotatably arranged in abutment sleeve axis (6), rotate coaxially the positioning core axle (8) that is arranged in spool shaft (7) with
And for driving spool shaft (7) rotation to realize the adjustment device of string fine tuning, abutment sleeve axis (6) and positioning core axle (8) point
It Yong Yu not be fixed with two opposite perforation for being provided with scroll head position, the part of spool shaft (7) in abutment sleeve axis (6) by stretching
Out for string coiling;Adjustment device includes the annular groove (601) being coaxially fixed on abutment sleeve axis (6) and rotates coaxially
Knob (1) in annular groove (601) outer rim is set, and spool shaft (7) is located at annular far from its one end for coiling string part and slides
Pin disk (5) are fixed in slot (601) and coaxially, biasing transmission shaft (2) is eccentrically provided in knob (1), are biased transmission shaft (2)
On rotate coaxially equipped with planetary gear (3), planetary gear (3) is nibbled with the ring gear (602) being located on annular groove (601) inner edge
Transmission connection is closed, multiple pin holes (301) are also provided on planetary gear (3), is correspondingly provided on pin disk (5) and pin hole
(301) pin shaft (501) of inscribe cooperation, and the diameter of axle of pin shaft (501) is less than the aperture of pin hole (301) so that planetary gear
(3) pin disk (5) can be driven to rotate.
2. a kind of string micro-adjusting mechanism of planet-gear transmission according to claim 1, it is characterised in that: reel
Axis (7) is provided with the step for radial positioning far from its one end for coiling string part, opens up in the center of pin disk (5)
There is the mounting hole being coupled with step.
3. a kind of string micro-adjusting mechanism of planet-gear transmission according to claim 1, it is characterised in that: positioning
Mandrel (8) is distributed in annular groove (601) far from its one end for being coupled part with scroll head and is fitted with spring catch
It encloses (4), check ring (4) is used for the axially position of abutment sleeve axis (6), spool shaft (7) and positioning core axle (8).
4. a kind of string micro-adjusting mechanism of planet-gear transmission according to claim 1, it is characterised in that: reel
Axis (7) and positioning core axle (8) are multi-diameter shaft, spool shaft (7) include clearance fit be mounted on it is small straight in abutment sleeve axis (6)
The reel outer shaft (702) of the reel inner shaft (701) of diameter section and the enlarged diameter section for string coiling, positioning core axle (8) includes gap
The locating core inner shaft (801) for the reduced diameter section being fitted in spool shaft (7) and for determining with what scroll head position was fixedly connected
Position core outer shaft (802).
5. a kind of string micro-adjusting mechanism of planet-gear transmission according to claim 4, it is characterised in that: positioning
The outer diameter of quill (6), reel outer shaft (702) and locating core outer shaft (802) is identical.
6. a kind of string micro-adjusting mechanism of planet-gear transmission according to claim 4, it is characterised in that: rolling up
The axial plane of cylinder outer shaft (702) is equipped with the string hole for fixing string.
7. a kind of string micro-adjusting mechanism of planet-gear transmission according to claim 1, it is characterised in that: revolving
The axis hole (102) for installing biasing transmission shaft (2) is offered on button (1), biasing transmission shaft (2) is multi-diameter shaft, reduced diameter section
Part is mounted in axis hole (102) by tight fit, and remainder and the centre bore of planetary gear (3) are coupled, and the shaft shoulder is used
In the axially position effect for realizing planetary gear (3).
8. a kind of string micro-adjusting mechanism of planet-gear transmission according to claim 1, it is characterised in that: revolving
The inner edge of button (1) is equipped with the convex edge (101) being rotatably assorted with the outer rim of annular groove (601);In convex edge (101) and annular groove
(601) it is respectively provided at cooperation and at the cooperation of planetary gear (3) and ring gear (602) glue for increasing damping ratio
Object.
9. a kind of string micro-adjusting mechanism of planet-gear transmission according to claim 1, it is characterised in that: planet
Gear (3) is roller gear.
10. a kind of string micro-adjusting mechanism of planet-gear transmission according to claim 1, it is characterised in that:
The protrusion of frictional force between increase and qin body is respectively provided on the axial plane of abutment sleeve axis (6) and locating core outer shaft (802)
Striped.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811427701.8A CN109473083B (en) | 2018-11-27 | 2018-11-27 | String fine-tuning mechanism driven by planetary gear with small tooth difference |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811427701.8A CN109473083B (en) | 2018-11-27 | 2018-11-27 | String fine-tuning mechanism driven by planetary gear with small tooth difference |
Publications (2)
Publication Number | Publication Date |
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CN109473083A true CN109473083A (en) | 2019-03-15 |
CN109473083B CN109473083B (en) | 2023-12-19 |
Family
ID=65674403
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201811427701.8A Active CN109473083B (en) | 2018-11-27 | 2018-11-27 | String fine-tuning mechanism driven by planetary gear with small tooth difference |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004301685A (en) * | 2003-03-31 | 2004-10-28 | Denso Corp | Rotational angle detection device |
CN204440885U (en) * | 2015-02-06 | 2015-07-01 | 张亚军 | A kind of string fine tuning structure |
DE102015004405A1 (en) * | 2015-04-11 | 2016-10-13 | Jan Klindworth | variator |
CN107202152A (en) * | 2017-06-01 | 2017-09-26 | 南京理工大学 | A kind of pair of gearratio few teeth difference harmonic gear reducer |
CN108510967A (en) * | 2018-06-11 | 2018-09-07 | 洛阳金衢工贸有限公司 | A kind of string micro-adjusting mechanism by face gear planet |
CN209312424U (en) * | 2018-11-27 | 2019-08-27 | 河南科技大学 | A kind of string micro-adjusting mechanism of planet-gear transmission |
-
2018
- 2018-11-27 CN CN201811427701.8A patent/CN109473083B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004301685A (en) * | 2003-03-31 | 2004-10-28 | Denso Corp | Rotational angle detection device |
CN204440885U (en) * | 2015-02-06 | 2015-07-01 | 张亚军 | A kind of string fine tuning structure |
DE102015004405A1 (en) * | 2015-04-11 | 2016-10-13 | Jan Klindworth | variator |
CN107202152A (en) * | 2017-06-01 | 2017-09-26 | 南京理工大学 | A kind of pair of gearratio few teeth difference harmonic gear reducer |
CN108510967A (en) * | 2018-06-11 | 2018-09-07 | 洛阳金衢工贸有限公司 | A kind of string micro-adjusting mechanism by face gear planet |
CN209312424U (en) * | 2018-11-27 | 2019-08-27 | 河南科技大学 | A kind of string micro-adjusting mechanism of planet-gear transmission |
Non-Patent Citations (1)
Title |
---|
王凯杰;索双富;杨义勇;: "孔销式少齿差行星增速器的压力角计算方法及其影响因素", 机械传动, no. 09, pages 170 - 174 * |
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