CN108561507B - Herringbone tooth gap eliminating and split-flow speed reducer - Google Patents
Herringbone tooth gap eliminating and split-flow speed reducer Download PDFInfo
- Publication number
- CN108561507B CN108561507B CN201810700233.0A CN201810700233A CN108561507B CN 108561507 B CN108561507 B CN 108561507B CN 201810700233 A CN201810700233 A CN 201810700233A CN 108561507 B CN108561507 B CN 108561507B
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- China
- Prior art keywords
- gear
- herringbone gear
- herringbone
- speed reducer
- output shaft
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 239000007787 solid Substances 0.000 claims abstract description 5
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 125000003003 spiro group Chemical group 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000003754 machining Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
-
- 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
- F16H57/00—General details of gearing
- F16H57/12—Arrangements for adjusting or for taking-up backlash not provided for elsewhere
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The herringbone gear gap eliminating and flow dividing speed reducer is driven in a direct connection mode by adopting a planetary gear motor, a solid output shaft of the planetary gear motor extends to be connected with an input hollow shaft through a flat key, and is meshed with passive herringbone gears A & B on output shafts at two sides respectively through active herringbone gears on the input shaft, so that power flow dividing output is realized; the double-output hollow shaft transmits the power of the planetary gear motor to the two input shafts of the working machine in a split way through the locking disc. The application solves the market demand of high-precision (angle or position) gear transmission application; the gear machining precision is not very high, the gear is easy to manufacture, and the manufacturing cost is saved; the assembly and adjustment are convenient, the reliability is high, and the mass production is easy.
Description
Technical Field
The invention relates to a speed reducer design, in particular to a herringbone gear backlash eliminating and splitting speed reducer, and belongs to the technical field of gear transmission.
Background
During the gear transmission, the gear pair side gap is used for preventing gears from being blocked due to machining errors and thermal expansion, and a space is reserved for a lubricating oil film between the meshing tooth surfaces; but the backlash can also cause idle stroke, namely return stroke error of the speed reducer, when the speed reducer rotates forwards and reversely. The return error is one of the important factors influencing the transmission precision of the speed reducer, and if the return error of the speed reducer is eliminated by only improving the gear machining precision, the machining and manufacturing cost of the speed reducer is greatly increased, so that the speed reducer cannot be born by customers. Therefore, where high precision (angular or positional) gear drive is required, the speed reducer must have a suitable anti-backlash mechanism to control the gear reducer return error.
Disclosure of Invention
The invention provides a herringbone gear backlash eliminating and splitting speed reducer, which meets the application requirements of high-precision (angle or position) gear transmission.
The herringbone gear gap eliminating and flow dividing speed reducer comprises a planetary speed reducing motor, an input flange, an active herringbone gear, an input shaft, a passive herringbone gear A, a passive herringbone gear B, a pressure spring, a pressure plate, a pressing block nut, a set screw, a locking thread block, an output shaft, a bearing, a box body, a locking disc, an output transparent cover and a protective cover;
The four light holes of the output flange of the planetary gear motor are in threaded connection with the threaded interface of the input flange through bolts, the six light holes of the input flange are in threaded connection with the threaded interface of the box body through bolts, the driving herringbone gear is fixedly arranged on the input shaft through interference fit, and the input shaft is placed in the bearing hole of the box body through a bearing;
The passive herringbone gear A is fixedly arranged on the output shaft through interference fit and flat keys; the passive herringbone gear B is sleeved on the output shaft through clearance fit and flat keys; the compression spring is placed in eight unthreaded holes on the end face of the passive herringbone gear B, the pressing plate is sleeved between the compression spring and the pressing block nut on the output shaft, the pressing block nut is in threaded connection with a threaded shaft section on the output shaft through threads, and the set screw is propped against the end face of the anti-loose threaded block through threads; the output shaft is placed in the bearing hole of the box body through the bearing.
Further, the locking disc is used for fastening the solid shaft of the working machine in the inner hole of the output shaft through bolts.
Further, six unthreaded hole through-hole bolts of output through-cover spiro union in the screwed connection department of box.
Further, four light holes of the protective cover are connected to the threaded interface of the output transparent cover in a threaded mode through bolts.
Furthermore, the eight light holes of the box body are in threaded connection with a threaded interface of the installation plane of the working machine through bolts.
The invention has the beneficial effects that: 1. the market demand of high-precision (angle or position) gear transmission application is solved; 2. the gear machining precision is not very high, the gear is easy to manufacture, and the manufacturing cost is saved; 3. the assembly and adjustment are convenient, the reliability is high, and the mass production is easy.
Drawings
FIG. 1 is a block diagram of a speed reducer according to the present application
FIG. 2 is a block nut block diagram of the present application
The planetary reduction gear comprises a 1-planetary reduction motor, a 2-input flange, a 3-driving herringbone gear, a 4-input shaft, a 5-driven herringbone gear A, a 6-driven herringbone gear B, a 7-pressure spring, an 8-pressure plate, a 9-press block nut, a 902-set screw, a 903-anti-loose screw block, a 10-output shaft, an 11-bearing, a 12-box body, a 13-output transparent cover, a 14-locking disc and a 15-protection cover.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to the attached drawings.
Referring to the drawings:
The invention discloses a herringbone gear gap eliminating and flow dividing speed reducer, which comprises a planetary speed reducing motor 1, an input flange 2, an active herringbone gear 3, an input shaft 4, a passive herringbone gear A5, a passive herringbone gear B6, a pressure spring 7, a pressure plate 8, a pressing block nut 9, a set screw 902, a locking thread block 903, an output shaft 10, a bearing 11, a box body 12, an output transparent cover 13, a locking disc 14 and a protective cover 15. Four unthreaded holes of the output flange of planetary gear motor 1 pass through the screwed connection department at input flange 2, six unthreaded holes of input flange 2 pass through the screwed connection department at box 12, initiative herringbone gear 3 pass through interference fit and adorn on input shaft 4, input shaft 4 place in the bearing hole of box 12 through the bearing.
The passive herringbone gear A5 is fixedly arranged on the output shaft 10 through interference fit and flat key; the passive herringbone gear B6 is sleeved on the output shaft 10 through clearance fit and flat keys; the pressure spring 7 is placed in eight unthreaded holes on the end face of the passive herringbone gear B6, the pressure plate 8 is sleeved between the pressure spring 7 and the pressure block nut 9 on the output shaft 10, the pressure block nut 9 is in threaded connection with a threaded shaft section on the output shaft 10 through threads, and the set screw 902 is propped against the end face of the anti-loosening threaded block 903 through threads; the output shaft 10 is placed in a bearing hole of the box body 12 through a bearing.
The locking disc 14 is used for fastening the solid shaft of the working machine in the inner hole of the output shaft 10 through bolts.
The six through hole bolts of the output transparent cover 13 are screwed at the screw thread interface of the box body 12.
The four light holes of the protective cover 15 are connected to the screw thread interface of the output transparent cover 13 through bolts.
The eight light holes of the box body 12 are connected to the screw thread interface of the installation plane of the working machine through bolts.
The herringbone gear gap eliminating and flow dividing speed reducer is driven in a direct connection mode by adopting a planetary gear motor 1, a solid output shaft of the planetary gear motor 1 is connected with an input hollow shaft through a flat key, and is meshed with passive herringbone gears A & B on output shafts at two sides respectively through an active herringbone gear 3 on the input shaft, so that power flow dividing output is realized; the double-output hollow shaft transmits the power of the planetary reduction motor 1 to the two input shafts of the working machine in a split way through the locking disc 14.
Herringbone tooth clearance elimination principle: the passive herringbone gear A, B has a phase requirement when it is used for machining a key slot. The passive herringbone gear A5 is fixedly arranged on the output shaft through interference fit and a flat key, the flat key mainly plays a role in fixing phase, and torque is mainly born by interference; the passive herringbone gear B is sleeved on the output shaft through clearance fit and a flat key, and the flat key not only plays a role in fixing the phase, but also bears the torque transmitted by the gear pair. During speed reducer assembly, axial pretightening force F is applied to the pressing plate by tightening the pressing block nut, the pressing plate transmits the axial pretightening force F to the driven herringbone gear B6 through the pressure spring, the driven herringbone gear B6 can axially move under the action of the axial pretightening force F, and meanwhile the driving herringbone gear 3 on the input shaft rotates by a small angle, so that the driven herringbone gears A and B are in double-sided engagement with the driving herringbone gear, and gear backlash is eliminated. When the speed reducer works, the pressure spring can store tiny axial displacement generated by the thermal expansion of the gear and a lubricating oil film together, and the locking of the press block nut 9 is realized by pressing the end face of the locking thread block through a set screw. The passive herringbone gears A and B and the active herringbone gear 3 keep double-sided meshing, so that the speed reducer can realize forward and reverse transmission without return errors.
The above description is merely of preferred embodiments of the present invention, and the scope of the present invention is not limited to the above embodiments, but all equivalent modifications or variations according to the present disclosure will be within the scope of the claims.
Claims (5)
1. Herringbone tooth gap eliminating and flow dividing speed reducer is characterized in that:
The herringbone gear gap eliminating and split-flow speed reducer comprises a planetary speed reducing motor, an input flange, an active herringbone gear, an input shaft, a passive herringbone gear A, a passive herringbone gear B, a pressure spring, a pressure plate, a press block nut, a set screw, a locking thread block, an output shaft, a bearing, a box body, a locking disc, an output transparent cover and a protective cover;
The four light holes of the output flange of the planetary gear motor are in threaded connection with the threaded interface of the input flange through bolts, the six light holes of the input flange are in threaded connection with the threaded interface of the box body through bolts, the driving herringbone gear is fixedly arranged on the input shaft through interference fit, and the input shaft is placed in the bearing hole of the box body through a bearing;
The passive herringbone gear A is fixedly arranged on the output shaft through interference fit and flat keys; the passive herringbone gear B is sleeved on the output shaft through clearance fit and flat keys; the compression spring is placed in eight unthreaded holes on the end face of the passive herringbone gear B, the pressing plate is sleeved between the compression spring and the pressing block nut on the output shaft, the pressing block nut is in threaded connection with a threaded shaft section on the output shaft through threads, and the set screw is propped against the end face of the anti-loose threaded block through threads; the output shaft is placed in a bearing hole of the box body through a bearing;
The herringbone gear gap eliminating and split-flow speed reducer is driven in a direct-connection mode by adopting a planetary speed reducing motor;
The passive herringbone gear A, B has a phase requirement when processing a key slot; the passive herringbone gear A is fixedly arranged on the output shaft through an interference fit and a flat key, the flat key mainly plays a role in fixing phase, and torque is mainly born by the interference; the passive herringbone gear B is sleeved on the output shaft through clearance fit and a flat key, and the flat key not only plays a role in fixing the phase, but also bears the torque transmitted by the gear pair; when the speed reducer is assembled, axial pretightening force is applied to the pressing plate by screwing the pressing block nut, the pressing plate transmits the axial pretightening force to the driven herringbone gear B through the pressure spring, the driven herringbone gear B can axially move under the action of the axial pretightening force, and meanwhile, the driving herringbone gear on the input shaft rotates by an angle, so that the driven herringbone gears A and B are in double-sided engagement with the driving herringbone gear, and the gear backlash is eliminated; when the speed reducer works, the pressure spring stores axial displacement generated by the thermal expansion of the gear and the lubricating oil film together, and the locking of the press block nut is realized by pressing the end surface of the locking screw block through the set screw; the passive herringbone gears A and B are kept in double-sided engagement with the active herringbone gear, so that the speed reducer can realize forward and reverse transmission without return errors.
2. The herringbone gear backlash shunt speed reducer according to claim 1, characterized in that: the locking disc is used for fastening the solid shaft of the working machine in the inner hole of the output shaft through the bolt.
3. The herringbone gear backlash shunt speed reducer according to claim 1, characterized in that: six unthreaded hole through-hole bolts of output through-cover spiro union is in the screwed connection department of box.
4. The herringbone gear backlash shunt speed reducer according to claim 1, characterized in that: four light holes of the protective cover are connected to the threaded interface of the output transparent cover through bolts in a threaded mode.
5. The herringbone gear backlash shunt speed reducer according to claim 1, characterized in that: eight unthreaded holes of box pass through the screw thread interface department of bolt spiro union in the work machine mounting plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810700233.0A CN108561507B (en) | 2018-06-29 | 2018-06-29 | Herringbone tooth gap eliminating and split-flow speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810700233.0A CN108561507B (en) | 2018-06-29 | 2018-06-29 | Herringbone tooth gap eliminating and split-flow speed reducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108561507A CN108561507A (en) | 2018-09-21 |
| CN108561507B true CN108561507B (en) | 2024-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810700233.0A Active CN108561507B (en) | 2018-06-29 | 2018-06-29 | Herringbone tooth gap eliminating and split-flow speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108561507B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372951A (en) * | 2018-11-14 | 2019-02-22 | 南京传仕重工科技有限公司 | A kind of speed reducer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101000081A (en) * | 2006-12-31 | 2007-07-18 | 重庆大学 | Gare changing thick involute planetary decelerating unit |
| CN201705890U (en) * | 2010-04-15 | 2011-01-12 | 沃德(天津)传动有限公司 | Speed reducer and herringbone gear installing structure thereon |
| CN208831595U (en) * | 2018-06-29 | 2019-05-07 | 江苏国茂减速机股份有限公司 | Double helical tooth disappears gap shunting speed reducer |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3022020C2 (en) * | 1980-06-12 | 1982-09-30 | Voith Getriebe Kg, 7920 Heidenheim | Axial power transmission device for a spur gear |
| DE19624083B4 (en) * | 1996-06-17 | 2005-08-04 | Renk Ag | transmission |
| CN201827300U (en) * | 2010-08-04 | 2011-05-11 | 无锡中盈实业有限公司 | X-axis reduction gearbox for boring-milling machine |
| CN201760446U (en) * | 2010-08-31 | 2011-03-16 | 常州减速机总厂有限公司 | Large hot-rolled gear reducer |
| CN101975248A (en) * | 2010-10-15 | 2011-02-16 | 北京伊贝格机械有限公司 | Backlash planetary retarding mechanism |
| CN202756573U (en) * | 2012-07-06 | 2013-02-27 | 浙江中控太阳能技术有限公司 | Heliostat tracking system |
| CN202901171U (en) * | 2012-10-10 | 2013-04-24 | 中信重工机械股份有限公司 | Speed reducer with herringbone teeth and hard tooth surface |
| CN204153060U (en) * | 2014-01-10 | 2015-02-11 | 重庆永进重型机械成套设备有限责任公司 | Gas turbine generating system and high-power gear type speed reducer thereof |
| CN104913029A (en) * | 2015-06-16 | 2015-09-16 | 南京高精齿轮集团有限公司 | Herringbone gear pair capable of bearing additional axial force and application of herringbone gear pair to gear box |
| CN204985553U (en) * | 2015-08-20 | 2016-01-20 | 郑州机械研究所 | Herringbone tooth planetary reducer |
-
2018
- 2018-06-29 CN CN201810700233.0A patent/CN108561507B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101000081A (en) * | 2006-12-31 | 2007-07-18 | 重庆大学 | Gare changing thick involute planetary decelerating unit |
| CN201705890U (en) * | 2010-04-15 | 2011-01-12 | 沃德(天津)传动有限公司 | Speed reducer and herringbone gear installing structure thereon |
| CN208831595U (en) * | 2018-06-29 | 2019-05-07 | 江苏国茂减速机股份有限公司 | Double helical tooth disappears gap shunting speed reducer |
Non-Patent Citations (1)
| Title |
|---|
| 新型中心距可调消隙齿轮副;唐元玉;;纺织器材(第04期);全文 * |
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| Publication number | Publication date |
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| CN108561507A (en) | 2018-09-21 |
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