CN110005765B - Automatic speed changing speed reducer for curtain rolling machine - Google Patents
Automatic speed changing speed reducer for curtain rolling machine Download PDFInfo
- Publication number
- CN110005765B CN110005765B CN201810604601.1A CN201810604601A CN110005765B CN 110005765 B CN110005765 B CN 110005765B CN 201810604601 A CN201810604601 A CN 201810604601A CN 110005765 B CN110005765 B CN 110005765B
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- China
- Prior art keywords
- transmission shaft
- drive gear
- slow
- stage transmission
- grade
- 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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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 22
- 238000005096 rolling process Methods 0.000 title claims abstract description 21
- 230000008859 change Effects 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 112
- 208000032370 Secondary transmission Diseases 0.000 claims description 17
- 238000007906 compression Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 208000032369 Primary transmission Diseases 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract 2
- 230000009471 action Effects 0.000 description 5
- 238000000926 separation method Methods 0.000 description 3
- 244000025254 Cannabis sativa Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/22—Shades or blinds for greenhouses, or the like
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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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
- F16H3/093—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts
-
- 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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/10—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with one or more one-way clutches as an essential feature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Gear Transmission (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Abstract
The utility model provides an automatic speed change speed reducer for rolling up curtain machine, includes the box, installs primary transmission shaft and the secondary drive axle in the box, is equipped with the one-level quick drive gear and the one-level slow drive gear of axial arrangement on the primary transmission shaft, sets up the second grade quick drive gear and the second grade slow drive gear that correspond with the one-level slow drive gear with the one-level quick drive gear meshing on the secondary drive axle, the cooperation of second grade quick drive gear and secondary drive axle through spiral keyway, the rotation of second grade slow drive gear is installed on the secondary drive axle, and is located between second grade quick drive gear and the second grade slow drive gear on the secondary drive axle and set up the clutch block, the clutch block passes through straight keyway cooperation with the secondary drive axle, and is equipped with the skewed tooth of mutually supporting on the opposite face of clutch block and second grade slow drive gear respectively. The curtain can be rolled slowly and discharged rapidly, so that the driving energy of a motor in the curtain discharging process is saved, and the waiting time of curtain discharging operation is shortened.
Description
Technical Field
The invention relates to a speed reducer for a curtain rolling machine, in particular to an automatic speed change speed reducer for the curtain rolling machine.
Background
The curtain rolling machine is agricultural mechanical equipment for automatically rolling and releasing greenhouse grass curtains, and consists of a motor, a speed reducer connected with a motor secondary transmission shaft, a greenhouse roller shutter shaft rod connected with the speed reducer secondary transmission shaft, and grass curtains wound on the greenhouse roller shutter shaft rod. When the greenhouse curtain rolling machine works, motor power is transmitted to a greenhouse curtain rolling shaft rod through a speed reducer, and the greenhouse curtain rolling operation is realized through forward and reverse rotation of the motor. The existing roller shutter machine speed reducer is a fixed speed reduction ratio, the roller shutter speed is the same as the curtain releasing speed and is slow, and the slow curtain releasing speed meaningless wastes the motor driving energy and the waiting time of curtain releasing operation.
Disclosure of Invention
The invention aims to solve the technical problems and provides an automatic speed changing speed reducer for a curtain rolling machine, which can realize slow curtain rolling and quick curtain releasing, save motor driving energy in the curtain releasing process and shorten the waiting time of curtain releasing operation.
The technical scheme of the invention is as follows:
an automatic speed change speed reducer for a curtain rolling machine comprises a box body, a primary transmission shaft and a secondary transmission shaft which are arranged in the box body, and is characterized in that: the clutch block is matched with the secondary transmission shaft through a straight key groove, and mutually matched helical teeth are respectively arranged on opposite faces of the clutch block and the secondary slow transmission gear.
Further preferably, a compression spring is sleeved between the clutch block and the second-stage slow-speed transmission gear on the second-stage transmission shaft, so that the clutch block can be conveniently and quickly reset when the clutch block rotates at a high speed or a low speed.
Further preferably, a three-stage transmission shaft in transmission connection with the two-stage transmission shaft is arranged in the box body, and a self-locking device is arranged on the three-stage transmission shaft.
Further preferably, the self-locking device is composed of a baffle plate arranged on the tertiary transmission shaft, a tertiary transmission gear which is arranged on the tertiary transmission shaft through threads and meshed with the secondary transmission shaft, a friction ratchet wheel arranged between the tertiary transmission gear and the baffle plate, and a pawl inserted between the friction ratchet wheel teeth.
Further preferably, a four-stage transmission shaft in driving connection with the three-stage transmission shaft is arranged in the box body.
Further preferably, a five-stage transmission shaft in driving connection with the four-stage transmission shaft is arranged in the box body.
The beneficial effects of the invention are as follows:
because set up the second grade fast-driving gear and the second grade slow-driving gear that corresponds with the second grade fast-driving gear meshing with the second grade fast-driving gear on the second grade driving shaft, second grade fast-driving gear passes through spiral keyway cooperation with the second grade driving shaft, the second grade slow-driving gear rotates and installs on the second grade driving shaft, and is located the separation and reunion piece between second grade fast-driving gear and the second grade slow-driving gear on the second grade driving shaft, separation and reunion piece passes through straight keyway cooperation with the second grade driving shaft, and is equipped with the skewed tooth of mutually supporting on separation and reunion piece and second grade fast-driving gear's opposite face respectively.
When the roller shutter is operated, the forward driving motor drives the primary transmission shaft to rotate forward, the secondary quick transmission gear moves rightwards to overcome the resistance under the action of the spiral key groove and separate from the primary quick transmission gear, the clutch block is pushed to move rightwards to the secondary slow transmission gear, the helical teeth on the clutch block are engaged with the helical teeth on the secondary quick transmission gear, the motor power drives the secondary transmission shaft to rotate slowly through the primary slow transmission gear, the secondary slow transmission gear and the clutch block in sequence, and the speed reducer is changed into slow transmission from quick transmission to start the slow roller shutter operation.
When the curtain is put, the reverse driving motor drives the primary transmission shaft to reversely rotate, the primary slow transmission gear drives the secondary slow transmission gear to rotate, the clutch block moves leftwards and is separated from the secondary slow transmission gear under the action of the helical teeth on the secondary slow transmission shaft and the clutch block, and the secondary fast transmission gear is pushed to move leftwards through the helical key slot, so that the secondary fast transmission gear is meshed with the primary fast transmission gear, the speed reducer is changed from slow transmission to fast transmission, the fast curtain putting operation is started, the motor driving energy in the curtain putting process is saved, and the waiting time of curtain putting operation is shortened.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a diagram of the connection of the primary drive shaft to the secondary drive shaft of FIG. 1;
FIG. 3 is a schematic view of the secondary drive shaft of FIG. 1;
in the figure: the novel high-speed transmission device comprises a 1-box body, a 2-primary transmission shaft, a 3-secondary transmission shaft, a 4-primary quick transmission gear, a 5-primary slow transmission gear, a 6-secondary quick transmission gear, a 7-secondary slow transmission gear, an 8-spiral key slot, a 9-clutch block, a 10-straight key slot, 11-helical teeth, 12-compression springs, 13-tertiary transmission shafts, 14-baffle plates, 15-tertiary transmission gears, 16-friction ratchet wheels, 17-pawls, 18-quaternary transmission shafts and 19-fifth transmission shafts.
Detailed Description
As shown in fig. 1-3, an automatic speed reducer for a curtain rolling machine comprises a box body 1, a primary transmission shaft 2 and a secondary transmission shaft 3 which are installed in the box body 1, wherein a primary quick transmission gear 4 and a primary slow transmission gear 5 which are axially arranged are arranged on the primary transmission shaft 2, a secondary quick transmission gear 6 meshed with the primary quick transmission gear 4 and a secondary slow transmission gear 7 meshed with the primary slow transmission gear 5 are arranged on the secondary transmission shaft 3, the secondary quick transmission gear 6 is matched with the secondary transmission shaft 3 through a spiral key groove 8, the secondary slow transmission gear 7 is rotatably installed on the secondary transmission shaft 3, a clutch block 9 is arranged between the secondary quick transmission gear 6 and the secondary slow transmission gear 7 on the secondary transmission shaft 3, the clutch block 9 is matched with the secondary transmission shaft 3 through a straight key groove 10, and inclined teeth 11 which are mutually matched are respectively arranged on opposite sides of the clutch block 9 and the secondary slow transmission gear 7, and a compression spring 12 is sleeved between the clutch block 9 and the secondary slow transmission gear 7 on the secondary transmission shaft 3.
A three-stage transmission shaft 13 in transmission connection with the two-stage transmission shaft 3 is arranged in the box body 1, and a self-locking device is arranged on the three-stage transmission shaft 13. The self-locking device is composed of a baffle 14 arranged on a tertiary transmission shaft 13, a tertiary transmission gear 15 which is arranged on the tertiary transmission shaft 13 through threads and is meshed with the secondary transmission shaft 3, a friction ratchet wheel 16 which is positioned between the tertiary transmission gear 15 and the baffle 14, and a pawl 17 which is inserted between the friction ratchet wheel 16. A four-stage transmission shaft 18 in transmission connection with the three-stage transmission shaft 13 is arranged in the box body 1. A five-stage transmission shaft 19 in transmission connection with a four-stage transmission shaft 18 is arranged in the box body 1.
When in installation, the primary transmission shaft 2 is connected with a motor through a belt transmission mechanism, and the five-stage transmission shaft 19 is connected with a greenhouse roller shutter shaft rod.
When the roller shutter is operated, the forward driving motor drives the primary transmission shaft 2 to rotate forward, the secondary rapid transmission gear 6 moves rightwards to overcome the resistance under the action of the spiral key groove 8 and is separated from the primary rapid transmission gear 4, the clutch block 9 is pushed to move rightwards to the secondary slow transmission gear 7, the helical teeth 11 on the clutch block 9 are engaged with the helical teeth 11 on the secondary rapid transmission gear 6, the motor power drives the secondary transmission shaft 3 to rotate slowly through the primary slow transmission gear 5, the secondary slow transmission gear 7 and the clutch block 9 in sequence, and the speed reducer is changed from rapid transmission to slow transmission to start the slow roller shutter operation. In the rolling process, the tertiary transmission gear 15 is screwed on the tertiary transmission shaft 13 along threads, and clamps the friction ratchet 16 together with the baffle 14, so that the tertiary transmission shaft 13 and the tertiary transmission gear 15 synchronously rotate. When the motor is powered off, the three-stage transmission shaft 13 is reversely locked under the combined action of the pawl 17 inserted between the friction ratchet wheels 16 and the friction force between the friction ratchet wheels 16 and the baffle plate 14, so that the rotating shaft of the greenhouse roller shutter is prevented from reversely rotating and retreating.
When the curtain is put, the reverse driving motor drives the primary transmission shaft 2 to reversely rotate, the primary slow transmission gear 5 drives the secondary slow transmission gear 7 to rotate, the tertiary transmission gear 15 is unscrewed along threads on the tertiary transmission shaft 13, the clamped friction ratchet 16 is restored to a free rotation state, the self-locking device is closed, the clutch block 9 moves leftwards to be separated from the secondary slow transmission gear 7 under the action of the helical teeth 11 on the secondary slow transmission shaft and the clutch block 9, and pushes the secondary fast transmission gear 6 to move leftwards through the helical key groove 8, so that the secondary fast transmission gear 6 is meshed with the primary fast transmission gear 4, the speed reducer is changed from slow transmission to fast transmission, the fast curtain putting operation is started, the motor driving source in the curtain putting process is saved, and the waiting time of curtain putting operation is shortened.
The above is only a specific embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides an automatic speed change speed reducer for rolling machine, includes the box, installs primary drive axle and the secondary drive axle in the box, its characterized in that: the clutch block is matched with the secondary transmission shaft through a straight key groove, and mutually matched helical teeth are respectively arranged on opposite faces of the clutch block and the secondary slow transmission gear.
2. The automatic speed change speed reducer for a curtain rolling machine according to claim 1, characterized in that: a compression spring is sleeved between the clutch block and the second-stage slow-speed transmission gear on the second-stage transmission shaft.
3. The automatic speed change speed reducer for a curtain rolling machine according to claim 1, characterized in that: the box body is internally provided with a three-stage transmission shaft in transmission connection with the two-stage transmission shaft, and the three-stage transmission shaft is provided with a self-locking device.
4. The automatic speed change speed reducer for a curtain rolling machine according to claim 3, wherein: the self-locking device is composed of a baffle plate arranged on the three-stage transmission shaft, a three-stage transmission gear which is arranged on the three-stage transmission shaft through threads and meshed with the two-stage transmission shaft, a friction ratchet wheel positioned between the three-stage transmission gear and the baffle plate, and a pawl inserted between the friction ratchet wheel teeth.
5. The automatic speed change speed reducer for a curtain rolling machine according to claim 3, wherein: a four-stage transmission shaft in transmission connection with the three-stage transmission shaft is arranged in the box body.
6. The automatic transmission speed reducer for a curtain rolling machine according to claim 5, characterized in that: a five-stage transmission shaft in transmission connection with the four-stage transmission shaft is arranged in the box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810604601.1A CN110005765B (en) | 2018-06-13 | 2018-06-13 | Automatic speed changing speed reducer for curtain rolling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810604601.1A CN110005765B (en) | 2018-06-13 | 2018-06-13 | Automatic speed changing speed reducer for curtain rolling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110005765A CN110005765A (en) | 2019-07-12 |
| CN110005765B true CN110005765B (en) | 2024-03-12 |
Family
ID=67164768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810604601.1A Active CN110005765B (en) | 2018-06-13 | 2018-06-13 | Automatic speed changing speed reducer for curtain rolling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110005765B (en) |
Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0193391A2 (en) * | 1985-02-26 | 1986-09-03 | Kuron Corporation | Overhead blind |
| US4782714A (en) * | 1987-04-14 | 1988-11-08 | Deere & Company | Multi-range synchronized transmission and housing therefor |
| CN2136320Y (en) * | 1992-08-07 | 1993-06-16 | 许昌继电器厂 | Automatic opening device for rolling shutter door |
| US6092432A (en) * | 1996-10-09 | 2000-07-25 | Klaricic; Boris | Countershaft transmission with constant mesh reverse gearing |
| CN2465456Y (en) * | 2001-01-21 | 2001-12-19 | 杭州万杰减速机有限公司 | Curtain take-up machine for greenhouse |
| CN2496237Y (en) * | 2001-09-09 | 2002-06-26 | 索亚敏 | Greenhouse curtain-rolling machine |
| CN2815564Y (en) * | 2005-09-09 | 2006-09-13 | 上海海新机床制造有限公司 | Drilling machine mainshaft box structure using frequency gowernor |
| CN201319777Y (en) * | 2008-12-22 | 2009-10-07 | 高绪忠 | Greenhouse rolling machine |
| CN201374941Y (en) * | 2009-03-10 | 2010-01-06 | 陈湘浦 | Brake of curtain rolling machine |
| CN201595045U (en) * | 2010-02-12 | 2010-10-06 | 赤峰市宁城长明机械有限公司 | Solar greenhouse curtain rolling machine with open gear drive |
| CN101884289A (en) * | 2010-06-17 | 2010-11-17 | 范金波 | Greenhouse rolling blind machine and operating method thereof |
| CN201771998U (en) * | 2010-07-05 | 2011-03-23 | 陈湘浦 | Brake for curtain rolling machine of big-arch shelter |
| CN202301762U (en) * | 2011-09-30 | 2012-07-04 | 佛山市星光传动机械有限公司 | Improved speed reducer |
| CN102562960A (en) * | 2010-12-14 | 2012-07-11 | 蔡旭阳 | Transmission for electric vehicles |
| CN202746505U (en) * | 2012-08-17 | 2013-02-20 | 华芯电子科技（泗洪）有限公司 | Position-changing bidirectional switching mechanism of gear with teeth difference |
| CN203005684U (en) * | 2013-01-09 | 2013-06-19 | 杨香文 | Power device for two-stage reduction electric car |
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| CN103348885A (en) * | 2013-08-01 | 2013-10-16 | 周德兴 | Greenhouse curtain rolling machine with ball slide rail type self-lock device |
| CN104806656A (en) * | 2015-04-24 | 2015-07-29 | 傅元才 | Bidirectional overrunning clutch, speed control device and automatic speed control system |
| CN105465293A (en) * | 2014-08-26 | 2016-04-06 | 天津市万新传动设备有限公司 | Spindle box of equipment used for winding large-diameter high-strength steel wire springs |
| CN107173120A (en) * | 2017-03-18 | 2017-09-19 | 台州唯丰农业科技有限公司 | A kind of integral type automatic air discharging machine |
| CN107489741A (en) * | 2017-09-22 | 2017-12-19 | 梁琼 | A kind of pure electric automobile power failure-free manual transmission and its shift control method |
| CN208273733U (en) * | 2018-06-13 | 2018-12-25 | 周雨馨 | Shutter fluid drive speed reducer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008000822B4 (en) * | 2008-03-26 | 2020-01-09 | Zf Friedrichshafen Ag | Device for reducing rattling noises in step gears |
| CN102951132B (en) * | 2012-11-09 | 2015-04-22 | 广东富华工程机械制造有限公司 | Electric gearbox of semitrailer supporting leg |
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Patent Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0193391A2 (en) * | 1985-02-26 | 1986-09-03 | Kuron Corporation | Overhead blind |
| US4782714A (en) * | 1987-04-14 | 1988-11-08 | Deere & Company | Multi-range synchronized transmission and housing therefor |
| CN2136320Y (en) * | 1992-08-07 | 1993-06-16 | 许昌继电器厂 | Automatic opening device for rolling shutter door |
| US6092432A (en) * | 1996-10-09 | 2000-07-25 | Klaricic; Boris | Countershaft transmission with constant mesh reverse gearing |
| CN2465456Y (en) * | 2001-01-21 | 2001-12-19 | 杭州万杰减速机有限公司 | Curtain take-up machine for greenhouse |
| CN2496237Y (en) * | 2001-09-09 | 2002-06-26 | 索亚敏 | Greenhouse curtain-rolling machine |
| CN2815564Y (en) * | 2005-09-09 | 2006-09-13 | 上海海新机床制造有限公司 | Drilling machine mainshaft box structure using frequency gowernor |
| CN201319777Y (en) * | 2008-12-22 | 2009-10-07 | 高绪忠 | Greenhouse rolling machine |
| CN201374941Y (en) * | 2009-03-10 | 2010-01-06 | 陈湘浦 | Brake of curtain rolling machine |
| CN201595045U (en) * | 2010-02-12 | 2010-10-06 | 赤峰市宁城长明机械有限公司 | Solar greenhouse curtain rolling machine with open gear drive |
| CN101884289A (en) * | 2010-06-17 | 2010-11-17 | 范金波 | Greenhouse rolling blind machine and operating method thereof |
| CN201771998U (en) * | 2010-07-05 | 2011-03-23 | 陈湘浦 | Brake for curtain rolling machine of big-arch shelter |
| CN102562960A (en) * | 2010-12-14 | 2012-07-11 | 蔡旭阳 | Transmission for electric vehicles |
| CN202301762U (en) * | 2011-09-30 | 2012-07-04 | 佛山市星光传动机械有限公司 | Improved speed reducer |
| KR20130084565A (en) * | 2012-01-17 | 2013-07-25 | 현대위아 주식회사 | Automatic manual transmission |
| CN202746505U (en) * | 2012-08-17 | 2013-02-20 | 华芯电子科技（泗洪）有限公司 | Position-changing bidirectional switching mechanism of gear with teeth difference |
| CN203005684U (en) * | 2013-01-09 | 2013-06-19 | 杨香文 | Power device for two-stage reduction electric car |
| CN103348885A (en) * | 2013-08-01 | 2013-10-16 | 周德兴 | Greenhouse curtain rolling machine with ball slide rail type self-lock device |
| CN105465293A (en) * | 2014-08-26 | 2016-04-06 | 天津市万新传动设备有限公司 | Spindle box of equipment used for winding large-diameter high-strength steel wire springs |
| CN104806656A (en) * | 2015-04-24 | 2015-07-29 | 傅元才 | Bidirectional overrunning clutch, speed control device and automatic speed control system |
| CN107173120A (en) * | 2017-03-18 | 2017-09-19 | 台州唯丰农业科技有限公司 | A kind of integral type automatic air discharging machine |
| CN107489741A (en) * | 2017-09-22 | 2017-12-19 | 梁琼 | A kind of pure electric automobile power failure-free manual transmission and its shift control method |
| CN208273733U (en) * | 2018-06-13 | 2018-12-25 | 周雨馨 | Shutter fluid drive speed reducer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110005765A (en) | 2019-07-12 |
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