CN101344139B - Crankshaft type dead axle output speed changer - Google Patents
Crankshaft type dead axle output speed changer Download PDFInfo
- Publication number
- CN101344139B CN101344139B CN2008100701345A CN200810070134A CN101344139B CN 101344139 B CN101344139 B CN 101344139B CN 2008100701345 A CN2008100701345 A CN 2008100701345A CN 200810070134 A CN200810070134 A CN 200810070134A CN 101344139 B CN101344139 B CN 101344139B
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- axis
- crank
- driving gear
- driven gear
- pto
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- 230000005540 biological transmission Effects 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000003638 chemical reducing agent Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
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Abstract
The invention discloses a crank-typed fixed axis output transmission which comprises a box, a power input axis and a power output axis, and at least three cranks which are uniformly distributed in the peripheries of the power input axis and the power output axis; the axial lines of the power input axis and the power output axis are coincident; the straight axis section of the crank is provided with a first-grade driven gear which is meshed with the first-grade drive gear on the power input axis; the crank pin on the crank is provided with a second-grade drive gear which is meshed with the second-grade driven gear on the power output axis when the crank pin is positioned at a near point of the power output axis; when the crank pin is positioned at a far point of the power output axis, the second-grade drive gear and the second-grade driven gear jump out of mesh; the phase angle among the crank handles of at least three cranks is 360/n degrees; and n is the amount of the cranks. The crank-typed fixed axis output transmission not only can obtain great speed ratio, but also has simple structure, small volume, high efficiency, simple manufacturing process and low manufacturing cost, and can reduce the noise and realize precision transmission without special output mechanism.
Description
Technical field
The present invention relates to a kind of speed change gear, particularly a kind of crankshaft type dead axle output speed changer.
Background technique
Speed changer is an indispensable device in the mechanical transmission, particularly in system of vehicle transmission, exercises the irreplaceable effect of playing for the normal safety of vehicle.
In the prior art, mainly comprise plane table thermoconductivity meter, involute less tooth difference ring-type gear reducer and the isostructural retarder of interior ring-type gear reducer.Cycloidal-pin wheel retarder in the plane table thermoconductivity meter, though speed ratio is very big, mechanism's complexity, intensity difference, manufacture cost height, and much all need special output mechanism, and can not realize precision drive; And involute less tooth difference ring-type gear reducer manufacture cost reduces, but existing external circular type retarder needs special planet carrier output equally, and volume is big, and efficient is lower; Though interior ring-type gear reducer does not need special output mechanism, there are shortcomings such as complex structure and vibration are bigger; And ' dead point ' appears in ring-type gear reducer easily in transmission process.
Therefore, need a kind of speed changer, simple in structure, speed ratio is big, efficient is high, noise is low, manufacture process is simple and cost is low, do not need special output mechanism and can realize precision drive.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of crankshaft type dead axle output speed changer, simple in structure, volume is little, speed ratio is big, efficient is high, noise is low, manufacture process is simple and cost is low, do not need special output mechanism and can realize precision drive.
Crankshaft type dead axle output speed changer of the present invention comprises casing, power input shaft and pto, the dead in line of described power input shaft and pto; Also comprise and be evenly distributed on power input shaft and pto at least three bent axles on every side, the one-level driven gear of the one-level driving gear engagement on the d-axis section of described bent axle on setting and the power input shaft, the secondary driving gear is set on the crank pin of bent axle, the secondary driven gear engagement of described secondary driving gear when crank pin is positioned at the pto near point and on the pto, when crank pin was positioned at the pto far point, secondary driving gear and secondary driven gear broke away from engagement fully;
Phase place angle in described at least three bent axles between the crank of adjacent bent axle is the 360/n degree, and wherein n is a bent axle quantity.
Further, the quantity of described bent axle is three;
Further, the eccentric distance of described crankshaft pin equals 1/2nd of secondary driving gear tooth depth;
Further, described secondary driving gear and secondary driven gear are variable tooth thickness gear, described secondary driven gear is provided with the return difference counterbalance spring, and described return difference counterbalance spring is provided with pretightening force, and the descending vertically direction of pretightening force direction and secondary driving gear transverse tooth thickness is identical.
The invention has the beneficial effects as follows: crankshaft type dead axle output speed changer of the present invention, adopt bent axle and be arranged on gear on the crank pin as middle drive mechanism, not only can obtain large speed ratio, and compare with existing three-ring type speed changer, the present invention is simple in structure, volume is little, vibrations are little, efficient is high, by the quantity of reasonable Arrangement bent axle, the speed changer noise is reduced, simple and the low cost of manufacture of manufacture process of the present invention does not need special output mechanism and can realize precision drive.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described.
Fig. 1 is a structural profile schematic representation of the present invention;
Fig. 2 be Fig. 1 along A-A to sectional view.
Embodiment
Fig. 1 is a structural profile schematic representation of the present invention, Fig. 2 be Fig. 1 along A-A to sectional view, as shown in the figure: the crankshaft type dead axle output speed changer of present embodiment comprises casing 6, power input shaft 4 and pto 8, the dead in line of power input shaft 4 and pto 8;
Comprise that also 2, three bent axles of three bent axles that are evenly distributed on around power input shaft 4 and the pto 8 evenly distribute, be beneficial to the continuity of transmission, eliminate the unbalanced factor in the transmission process, reduce the vibrations of speed changer; The one-level driven gear 1 of one-level driving gear 5 engagements on the d-axis section of bent axle 2 on setting and the power input shaft 4, secondary driving gear 9 is set on the crank pin of bent axle 2, when secondary driving gear 9 is positioned at pto 8 near points at crank pin, just crank pin is forwarding under the drive of bent axle 2 in pto 8 closest approaches, with secondary driven gear 7 engagements on the pto 8; When crank pin was positioned at pto 8 far points, secondary driving gear 9 broke away from engagement fully with secondary driven gear 7; Secondary driving gear 9 and secondary driven gear 7 are variable tooth thickness gear, secondary driven gear 7 is provided with return difference counterbalance spring 3, return difference counterbalance spring 3 is provided with pretightening force, the descending vertically direction of pretightening force direction and secondary driven gear 7 transverse tooth thickness is identical, can be by the compensation of return difference, the noise when reducing the speed changer transmission when improving transmission accuracy; Certainly, non-variable tooth thickness gear is applied to the present invention and equally also can reaches goal of the invention;
Phase place angle between the crank of three bent axles 2 is the 360/n degree, and wherein n is the quantity of bent axle 2, just the 360/3=120 degree.
In the present embodiment, the eccentric distance of bent axle 2 crank pins equals 1/2nd of secondary driving gear 9 tooth depths, guarantees crank pin when pto 8 far-ends, and secondary driving gear 9 and secondary driven gear 7 can be thrown off fully, eliminate and interfere, guarantee the normal operation of speed changer; Certainly, also can reach goal of the invention equally greater than 1/2nd of secondary driving gear 9 tooth depths.
Among the present invention, when power input shaft 4 rotated, one-level driving gear 5 rotated, and drove one-level driven gear 1 and rotated, and bent axle 2 rotates thereupon, drove secondary driving gear 9 and rotated, and rotated thereby drive secondary driven gear 7; Because the phase place angle of three bent axle 2 crank pins is 120 °; Secondary driving gear 9 on first bent axle and 7 engagements of secondary driven gear, after first bent axle rotates 120 °, secondary driving gear 9 on second bent axle and 7 engagements of secondary driven gear, after first bent axle rotates 120 ° again, secondary driving gear 9 on the 3rd bent axle and 7 engagements of secondary driven gear, and the like, guarantee the continuous rotation of secondary driven gear.
Explanation is at last, above embodiment is only unrestricted in order to technological scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technological scheme of the present invention, and not breaking away from the aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (4)
1. a crankshaft type dead axle output speed changer comprises casing (6), power input shaft (4) and pto (8), it is characterized in that: the dead in line of described power input shaft (4) and pto (8); Also comprise being evenly distributed on power input shaft (4) and pto (8) at least three bent axles (2) on every side the one-level driving gear on the d-axis section of described bent axle (2) on setting and the power input shaft (4)
(5) Nie He one-level driven gear (1), secondary driving gear (9) is set on the crank pin of bent axle (2), described secondary driving gear (9) is when crank pin is positioned at pto (8) near point and the secondary driven gear (7) on the pto (8) engagement, when crank pin was positioned at pto (8) far point, secondary driving gear (9) broke away from engagement fully with secondary driven gear (7);
Phase place angle in described at least three bent axles (2) between the crank of adjacent bent axle is the 360/n degree, and wherein n is the quantity of bent axle (2).
2. crankshaft type dead axle output speed changer according to claim 1 is characterized in that: the quantity of described bent axle (2) is three.
3. crankshaft type dead axle output speed changer according to claim 1 and 2 is characterized in that: the eccentric distance of described bent axle (2) crank pin equals 1/2nd of secondary driving gear (9) tooth depth.
4. crankshaft type dead axle output speed changer according to claim 3, it is characterized in that: described secondary driving gear (9) and secondary driven gear (7) are variable tooth thickness gear, described secondary driven gear (7) is provided with return difference counterbalance spring (3), described return difference counterbalance spring (3) is provided with pretightening force, and the descending vertically direction of pretightening force direction and secondary driving gear (9) transverse tooth thickness is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100701345A CN101344139B (en) | 2008-08-18 | 2008-08-18 | Crankshaft type dead axle output speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100701345A CN101344139B (en) | 2008-08-18 | 2008-08-18 | Crankshaft type dead axle output speed changer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101344139A CN101344139A (en) | 2009-01-14 |
| CN101344139B true CN101344139B (en) | 2010-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100701345A Expired - Fee Related CN101344139B (en) | 2008-08-18 | 2008-08-18 | Crankshaft type dead axle output speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101344139B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671734A (en) * | 2013-12-04 | 2014-03-26 | 镇江新区汇达机电科技有限公司 | Multi-point-meshing outer gear speed reducer |
| CN110273984A (en) * | 2019-07-22 | 2019-09-24 | 国电联合动力技术有限公司 | Wind turbines dual input shunts electric pitch drive and Wind turbines |
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2008
- 2008-08-18 CN CN2008100701345A patent/CN101344139B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101344139A (en) | 2009-01-14 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JINAGYIN KEWEI GEARBOXES MANUFACTURER CO., LTD. Free format text: FORMER OWNER: CHONGQING UNIVERSITY Effective date: 20110504 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 400044 NO. 174, SHAZHENG STREET, SHAPINGBA DISTRICT, CHONGQING TO: 214445 NO. 2, JISHAN ROAD, HUANGTU INDUSTRIAL PARK, LINGANG NEW TOWN, JIANGYIN CITY, JIANGSU PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20110504 Address after: 214445 Jiangsu city of Jiangyin province Lingang Industrial Park Ji Huang Soil Road No. 2 Patentee after: Jiangyin Kewei Gearboxes Manufacture Co., Ltd. Address before: 400044 Shapingba District Sha Street, No. 174, Chongqing Patentee before: Chongqing University |
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| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU HAOKE TRANSMISSION TECHNOLOGY CO., LTD. Free format text: FORMER NAME: JINAGYIN KEWEI GEARBOXES MANUFACTURER CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 214445 Jiangsu city of Jiangyin province Lingang Industrial Park Ji Huang Soil Road No. 2 Patentee after: Jiangsu Hao Ke transmission Science and Technology Co., Ltd. Address before: 214445 Jiangsu city of Jiangyin province Lingang Industrial Park Ji Huang Soil Road No. 2 Patentee before: Jiangyin Kewei Gearboxes Manufacture Co., Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Crankshaft type dead axle output speed changer Effective date of registration: 20151117 Granted publication date: 20100728 Pledgee: Agricultural Bank of China Limited by Share Ltd Wuxi science and Technology Branch Pledgor: Jiangsu Hao Ke transmission Science and Technology Co., Ltd. Registration number: 2015990001009 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100728 Termination date: 20170818 |