CN109076794B - Electric speed regulating mechanism for cleaning fan of harvester - Google Patents
Electric speed regulating mechanism for cleaning fan of harvester Download PDFInfo
- Publication number
- CN109076794B CN109076794B CN201711399066.2A CN201711399066A CN109076794B CN 109076794 B CN109076794 B CN 109076794B CN 201711399066 A CN201711399066 A CN 201711399066A CN 109076794 B CN109076794 B CN 109076794B
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- Prior art keywords
- belt pulley
- speed regulating
- fan
- pulley
- harvester
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 67
- 238000004140 cleaning Methods 0.000 title claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 35
- 239000000428 dust Substances 0.000 claims abstract description 11
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 8
- 235000013339 cereals Nutrition 0.000 description 7
- 238000003306 harvesting Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 241000209140 Triticum Species 0.000 description 2
- 235000021307 Triticum Nutrition 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/44—Grain cleaners; Grain separators
- A01F12/442—Rotary cleaners
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/58—Control devices; Brakes; Bearings
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- Threshing Machine Elements (AREA)
Abstract
The invention discloses an electric speed regulating mechanism for a cleaning fan of a harvester. The novel electric control device comprises an electric control transmission device, a fan speed regulating device and a control system, wherein the control system comprises a microprocessor, the fan speed regulating device comprises a fan, a connecting plate, a fan shaft, a second belt pulley slide block, a bearing, a check ring, a dust cover, a first belt pulley slide block, a pull rod, a speed regulating belt pulley moving disc, a speed regulating belt pulley fixed disc and a moving disc guide rod, the moving disc guide rod is a plurality of, the speed regulating belt pulley fixed disc and the speed regulating belt pulley moving disc are sequentially fixedly arranged on the moving disc guide rod from top to bottom, the speed regulating belt pulley moving disc is provided with the first belt pulley slide block, the second belt pulley slide block is arranged on the connecting plate, the dust cover is arranged between the first belt pulley slide block and the second belt pulley slide block, one end of the pull rod is arranged on the first belt pulley slide block, and the other end of the pull rod is connected with the electric control transmission device. The invention has the characteristics of convenient and quick operation, labor and time saving, high working efficiency and the like.
Description
Technical Field
The invention relates to an electric speed regulating mechanism for a cleaning fan of a harvester.
Background
The most common grain cleaning mode of the harvester is a mode of combining air separation and screening. The light sundries can be blown off the screen surface by the air flow, and the light sundries are blown out of the machine, so that the grain separation is facilitated. But the wind speed is too large and too small. The grain is lost excessively, and the impurities are more excessively small. In practice, the rotation speed of the fan is often required to be adjusted according to actual conditions. The Chinese patent specification CN102342213B discloses a hydraulic motor driven grain conveyer of a large-sized high-speed combine harvesting and planting management machine, and the hydraulic motor drives a multi-path spiral grain conveying pipe high-speed grain conveyer to finish the rapid conveying of wheat seeds after threshing at high speed when the large-sized high-speed combine harvester performs the wheat combine harvesting operation in agricultural production; the large-scale high-speed combine harvesting and planting management machine can realize 8-18kg conveying capacity per second, and effectively solves the synchronous high-speed grain conveying operation during high-speed harvesting and threshing; it is mainly composed of hydraulic motor, hydraulic drive multi-channel screw conveying pipe and transmission mechanism. Currently, the conventional change of the rotational speed of the fan is achieved by manually adjusting the structure of the fan pulley. The belt pulley has the structure that: the speed regulating belt pulley driving disc, the speed regulating belt pulley fixing disc, the adjusting gasket A and the adjusting gasket B are coaxially arranged to form the fan belt pulley. The working principle is as follows: after the number of the adjusting gaskets is increased or decreased, the gap between the speed regulating belt pulley driving disc and the speed regulating belt pulley fixed disc can be changed, and when the gap is reduced, the belt moves upwards on the belt pulley groove, so that the transmission radius is increased; when the gap becomes larger, the belt moves up and down in the pulley groove, the transmission radius is reduced, and the transmission radius is changed and the fan rotation speed is correspondingly changed because the transmission radius is inversely proportional to the rotation speed. The defects are as follows: when the method is used in actual harvesting, the gaskets are required to be frequently increased or decreased according to the actual effect, so that time and labor are wasted, and the working efficiency is low.
Disclosure of Invention
Aiming at the prior art, the invention aims to provide an electric speed regulating mechanism for a cleaning fan of a harvester, which can electrically control the rotating speed of the cleaning fan. The device has the characteristics of convenience and rapidness in operation, labor and time saving, high working efficiency and the like.
In order to solve the technical problems, the invention provides an electric speed regulating mechanism for a cleaning fan of a harvester. The harvester comprises an electric control transmission device, a fan speed regulating device and a control system, wherein the control system is arranged in a cab of the harvester and is electrically connected with the electric control transmission device and the fan speed regulating device respectively, the control system comprises a microprocessor, the electric control transmission device and the fan speed regulating device are arranged on the harvester, the fan speed regulating device comprises a fan, a connecting plate, a fan shaft, a second belt pulley sliding block, a bearing and check ring, a dust cover, a first belt pulley sliding block, a pull rod, a speed regulating belt pulley driving disc, a speed regulating belt pulley fixed disc and a moving disc guide rod, the fan, the connecting plate, the second belt pulley sliding block, the bearing and the check ring, the dust cover, the first belt pulley sliding block, the speed regulating belt pulley driving disc, the speed regulating belt pulley fixed disc and the moving disc guide rod are sequentially arranged from top to bottom, the speed regulating belt pulley sliding disc and the moving disc are movably arranged on the harvester, the speed regulating belt pulley sliding disc is provided with the first belt pulley sliding block, the second belt pulley sliding block is arranged on the connecting plate, the dust cover is arranged between the first belt pulley sliding block and the second belt pulley sliding block, the fan shaft is sequentially provided with the fan, the second belt pulley sliding block, the dust cover is arranged at one end of the first belt pulley sliding block is connected with the pull rod, and the electric control device is connected with the electric control system.
The electric control transmission device comprises a sector toothed plate, a motor, an angle sensor and a mounting plate, wherein the mounting plate is arranged on a side plate of the harvester, the sector toothed plate is arranged between the lower surface of the mounting plate and the side plate of the harvester, a first seat plate and a second seat plate are arranged on the sector toothed plate, the angle sensor is arranged on the mounting plate, one end of a rotating rod is arranged on the angle sensor, the other end of the rotating rod is arranged in the first seat plate of the sector toothed plate, and the angle sensor is used for monitoring the rotating angle of the sector toothed plate, is fed back to a microprocessor of the control system and is electrically connected with the control system; the control system is electrically connected with the motor; the motor is arranged on a side plate of the harvester, a gear is arranged below the motor, and the gear is meshed with the sector toothed plate.
The second seat board of the electric control transmission device is preferably connected with a first pulley slide block of the fan speed regulating device through a pull rod.
The first belt pulley sliding block is arranged on the speed regulating belt pulley driving disc through a bearing and a check ring, and the second belt pulley sliding block is arranged on the fan shaft through the bearing and the check ring.
The first belt pulley sliding block is meshed with the second belt pulley sliding block, when the first belt pulley sliding block is rotated, the first belt pulley sliding block can move left and right relative to the second belt pulley sliding block, so that the gap between the speed regulating belt pulley driving disc and the speed regulating belt pulley fixed disc is changed, the belt on the gap can move upwards or downwards, the transmission radius can be correspondingly changed, and the rotating speed of the fan is correspondingly changed.
The front end of the movable disc guide rod is preferably a polished rod, and the rear end of the movable disc guide rod is preferably provided with threads.
Compared with the prior art, the invention has the beneficial effects that: due to the adoption of the structure, the fan speed regulating device is connected with the electric control transmission device through the pull rod. When the fan-shaped tooth plate is rotated, the rotating rod also rotates along with the rotation of the fan-shaped tooth plate, and the angle sensor senses the angle of the fan-shaped tooth. The angle sensor can sense the rotating angle of the sector toothed plate and feed back to a microprocessor of the control system for controlling the driving of the motor. The fan-shaped toothed plate rotates, the second seat plate drives the pull rod to rotate by a certain angle, the pull rod rotates and simultaneously pulls the first pulley slide block to rotate, and in the rotation, the first pulley slide block moves left and right relative to the second pulley slide block, so that the gap between the speed regulation pulley fixed disc and the speed regulation pulley movable disc is changed. The belt on the fixed disk of the speed regulating belt wheel and the belt on the movable disk of the speed regulating belt wheel can be changed in the vertical position in the gap changing process, so that the transmission radius is changed, and the rotating speed of the fan is controlled. The electric control transmission device can enable people not to need getting off operation, and is very convenient to operate. The wind speed adjusting method of the fan speed adjusting device can change the wind speed only by driving the speed adjusting belt wheel driving disc sliding block to rotate by the pull rod, and the frequent dismounting and the adjustment of the gasket are not needed like the prior method, so that the operation is more convenient and rapid. The device has the characteristics of convenience and rapidness in operation, labor and time saving, high working efficiency and the like.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an exploded view of a fan speed governor of the present invention;
FIG. 3 is a schematic perspective view of a fan speed adjusting device according to the present invention;
FIG. 4 is a schematic top view of a fan speed governor of the present invention;
FIG. 5 is a schematic view of a longitudinal sectional partial structure of a fan speed governor of the present invention;
FIG. 6 is an exploded view of a first pulley block and a second pulley block of the fan speed adjusting device according to the present invention;
FIG. 7 is a schematic diagram illustrating a structure of a first pulley block and a second pulley block engaged with each other in a fan speed adjusting device according to the present invention;
FIG. 8 is an exploded view of the electrically controlled transmission of the present invention;
fig. 9 is a schematic structural assembly diagram of the electrically controlled transmission device of the present invention.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 to 9 show various structural schematic diagrams of the present invention. An electric speed regulating mechanism for a cleaning fan of a harvester. The electric control driving device 200 is electrically connected with the electric control driving device 200 and the fan speed regulating device 100 respectively, the electric control driving device 200 and the fan speed regulating device 100 are arranged on the harvester, the fan speed regulating device 100 comprises a fan 111, a connecting plate 110, a fan shaft 109, a second pulley slide block 101, a bearing and check ring 108, a dust cover 102, a first pulley slide block 103, a pull rod 104, a speed regulating pulley driving disc 105, a speed regulating pulley fixed disc 106 and a movable disc guide rod 107, the fan shaft 109 is sequentially provided with the fan 111, the connecting plate 110, the second pulley slide block 101, the bearing and check ring 108, the dust cover 102, the first pulley slide block 103, the speed regulating pulley driving disc 105, the speed regulating pulley fixed disc 106 and the movable disc guide rod 107 from top to bottom, the speed regulating pulley driving disc 105 is sequentially fixedly provided with the speed regulating pulley fixed disc 106 and the movable disc guide rod 105, the first pulley slide block 103 is arranged on the speed regulating pulley driving disc 103, the second pulley slide block 103 is arranged on the first pulley slide block 101 and the second pulley slide block 104 is connected with the first pulley slide block 101, and the other end of the first pulley slide block 104 is arranged on the first pulley slide block 101. The fan speed regulating device 100 of the invention is connected with an electric control transmission device 200 through a pull rod 104. The electric control transmission device 200 comprises a sector toothed plate 207, a motor 209, an angle sensor 206 and a mounting plate 204, wherein the mounting plate 204 is arranged on a side plate 201 of the harvester, the sector toothed plate 207 is arranged between the lower surface of the mounting plate 204 and the side plate 201 of the harvester, a first seat plate 202 and a second seat plate 203 are arranged on the sector toothed plate 207, the angle sensor 206 is arranged on the mounting plate 204, one end of a rotating rod 205 is arranged on the angle sensor 206, the other end of the rotating rod 205 is arranged in the first seat plate 202 of the sector toothed plate 207, and the angle sensor 206 is used for monitoring the rotating angle of the sector toothed plate 207, is fed back to a microprocessor of the control system and is electrically connected with the control system; the angle sensor 206 is used to detect an angle. The body of the utility model is provided with a hole which can be matched with the shaft of the music instrument. When attached to the RCX, the angle sensor counts once every 1/16 of a revolution of the shaft. When the rotation is in one direction, the count is increased, and when the rotation direction is changed, the count is decreased. The count is related to the initial position of the angle sensor. When the angle sensor is initialized, its count value is set to 0, and you can reset it programmatically if needed. In operation, the motor 209 drives the gear below the motor 209 to rotate, driving the sector toothed plate 207 to rotate, and when the sector toothed plate 207 rotates, the rotating rod 205 also rotates, and the angle sensor 206 senses the angle through which the sector teeth rotate correspondingly. The angle sensor 206 senses the angle through which the scalloped plate 207 rotates and feeds back to the microprocessor of the control system for controlling the drive of the motor 209. The control system is electrically connected with the motor 209; the motor 209 is arranged on the side plate 201 of the harvester, the gear 208 is arranged below the motor 209, and the gear 208 is meshed with the sector toothed plate 207. The second seat plate 203 of the electrically controlled transmission 200 is preferably connected to the first pulley 103 of the fan speed control device 100 by a tie rod 104. The second seat plate 203 drives the pull rod 104 to rotate by a certain angle while the sector toothed plate 207 rotates, and the pull rod 104 pulls the first pulley slider 103 to rotate while rotating, and during the rotation, the first pulley slider 103 moves left and right relative to the second pulley slider 101, so that the gap between the timing pulley fixed disc 106 and the timing pulley movable disc 105 is changed. In the gap changing process, the upper and lower positions of the belt on the speed regulating belt wheel fixed disc 106 and the speed regulating belt wheel movable disc 105 are changed, so that the transmission radius is changed, and the rotating speed of the fan 111 is controlled. The electric control transmission device 200 can enable people not to need getting off operation, and is very convenient to operate. The first pulley block 103 is arranged on the flywheel 105 via a bearing and a retaining ring 108, and the second pulley block 101 is arranged on the fan shaft 109 via a bearing and a retaining ring 108. The first pulley slider 103 is meshed with the second pulley slider 101, and when the first pulley slider 103 is rotated, the first pulley slider 103 moves left and right relative to the second pulley slider 101, so that the gap between the flywheel driving disc 105 and the flywheel fixed disc 106 is changed, the belt on the gap moves up or down, the transmission radius is correspondingly changed, and the rotating speed of the fan 111 is correspondingly changed. The movable disc guide rod 107 is preferably a polished rod at the front end and is threaded at the rear end. That is, the movable disc guide rod 107 is mounted on the fixed disc 106 of the speed regulating pulley through threads, the extended section is a polished rod without threads, and the movable disc 105 of the speed regulating pulley is sleeved on the section of polished rod.
The working principle of the invention is as follows:
the fan 111 speed regulating device 100 of the invention is connected with the electric control transmission device 200 through the pull rod 104. That is, the second seat plate 203 of the electrically controlled transmission 200 is preferably connected to the first pulley 103 of the fan speed regulator 100 by a tie rod 104. When the motor 209 works, the gear 208 below the motor 209 rotates to drive the sector toothed plate 207 to rotate, and when the sector toothed plate 207 rotates, the rotating rod 205 also rotates, and the angle sensor 206 senses the angle of the sector teeth correspondingly. The angle sensor 206 senses the angle through which the scalloped plate 207 rotates and feeds back to the microprocessor of the control system for controlling the drive of the motor 209. The second seat plate 203 drives the pull rod 104 to rotate by a certain angle while the fan-shaped toothed plate 207 rotates, the pull rod 104 rotates and pulls the first pulley slide block 103 to rotate, the first pulley slide block 103 is meshed with the second pulley slide block 101, and when the first pulley slide block 103 is rotated, the first pulley slide block 103 moves left and right relative to the second pulley slide block 101, so that the gap between the speed regulating pulley fixed disc 106 and the speed regulating pulley movable disc 105 is changed. In the gap changing process, the upper and lower positions of the belt on the speed regulating belt wheel fixed disc 106 and the speed regulating belt wheel movable disc 105 are changed, so that the transmission radius is changed, and the rotating speed of the fan 111 is controlled. The electric control transmission device 200 can enable people not to need getting off operation, and is very convenient to operate. According to the method for adjusting the wind speed of the fan speed adjusting device 100, the wind speed can be changed as long as the pull rod 104 drives the speed adjusting pulley driving disc 105 to rotate, and the adjustment gasket does not need to be frequently disassembled and assembled like the old method, so that the operation is more convenient and rapid, and the working efficiency is improved. The device has the characteristics of convenience and rapidness in operation, labor and time saving, high working efficiency and the like.
While the present invention has been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various modifications may be made thereto within the knowledge of those skilled in the art.
Claims (5)
1. The utility model provides an electronic speed regulating mechanism for cleaning fan of harvester, it includes automatically controlled transmission (200), fan speed regulating device (100) and control system, control system establishes in the driver's cabin of harvester, and be connected with automatically controlled transmission (200) and fan speed regulating device (100) respectively electricity, automatically controlled transmission (200) are connected with fan speed regulating device (100), control system includes microprocessor, and automatically controlled transmission (200) are established on the harvester with fan speed regulating device (100), its characterized in that: the fan speed regulating device (100) comprises a fan (111), a connecting plate (110), a fan shaft (109), a second belt pulley sliding block (101), a bearing and check ring (108), a dust cover (102), a first belt pulley sliding block (103), a pull rod (104), a speed regulating belt pulley moving disc (105), a speed regulating belt pulley fixed disc (106) and a moving disc guide rod (107), wherein the fan (111), the connecting plate (110), the second belt pulley sliding block (101), the bearing and check ring (108), the dust cover (102), the first belt pulley sliding block (103), the speed regulating belt pulley moving disc (105), the speed regulating belt pulley fixed disc (106) and the moving disc guide rod (107) are sequentially arranged on the fan shaft (109) from bottom to top, the number of the movable disc guide rods (107) is several, the movable disc guide rods (107) are sequentially fixedly provided with a speed-regulating pulley fixed disc (106) and a movable speed-regulating pulley movable disc (105) from top to bottom, the speed-regulating pulley movable disc (105) is provided with a first pulley slide block (103), the second pulley slide block (101) is arranged on a connecting plate (110), a dust cover (102) is arranged between the first pulley slide block (103) and the second pulley slide block (101), one end of a pull rod (104) is arranged on the first pulley slide block (103), and the other end of the pull rod (104) is connected with an electric control transmission device (200); the electric control transmission device (200) comprises a sector toothed plate (207), a motor (209), an angle sensor (206) and a mounting plate (204), wherein the mounting plate (204) is arranged on a side plate (201) of the harvester, the sector toothed plate (207) is arranged between the lower surface of the mounting plate (204) and the side plate (201) of the harvester, a first seat plate (202) and a second seat plate (203) are arranged on the sector toothed plate (207), the angle sensor (206) is arranged on the mounting plate (204), one end of a rotating rod (205) is arranged on the angle sensor (206), the other end of the rotating rod (205) is arranged in the first seat plate (202) of the sector toothed plate (207), and the angle sensor (206) is used for monitoring the rotating angle of the sector toothed plate (207), is fed back to a microprocessor of the control system and is electrically connected with the control system; the control system is electrically connected with the motor (209); the motor (209) is arranged on a side plate (201) of the harvester, a gear (208) is arranged below the motor (209), and the gear (208) is meshed with the sector toothed plate (207).
2. The electric governor mechanism for a cleaning fan of a harvester of claim 1, wherein: the second seat board (203) of the electric control transmission device (200) is connected with the first belt pulley sliding block (103) of the fan speed regulating device (100) through a pull rod (104).
3. The electric governor mechanism for a cleaning fan of a harvester of claim 1, wherein: the first belt pulley sliding block (103) is arranged on the speed regulating belt pulley driving disc (105) through a bearing and a check ring (108), and the second belt pulley sliding block (101) is arranged on the fan shaft (109) through the bearing and the check ring (108).
4. The electric governor mechanism for a cleaning fan of a harvester of claim 1, wherein: the first pulley slide (103) is engaged with the second pulley slide (101).
5. The electric governor mechanism for a cleaning fan of a harvester of claim 1, wherein: the front end of the movable disc guide rod (107) is a polished rod, and the rear end is provided with threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711399066.2A CN109076794B (en) | 2017-12-22 | 2017-12-22 | Electric speed regulating mechanism for cleaning fan of harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711399066.2A CN109076794B (en) | 2017-12-22 | 2017-12-22 | Electric speed regulating mechanism for cleaning fan of harvester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109076794A CN109076794A (en) | 2018-12-25 |
| CN109076794B true CN109076794B (en) | 2024-01-30 |
Family
ID=64839556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711399066.2A Active CN109076794B (en) | 2017-12-22 | 2017-12-22 | Electric speed regulating mechanism for cleaning fan of harvester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109076794B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109076795A (en) * | 2018-01-19 | 2018-12-25 | 江苏沃得农业机械有限公司 | Harvester centrifugal fan electric speed regulation mechanism |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4466230A (en) * | 1981-05-20 | 1984-08-21 | Sperry Corporation | Automatic fan speed adjuster for combine harvester |
| CN2640217Y (en) * | 2003-08-26 | 2004-09-15 | 中国农业机械化科学研究院 | Self-running self-feeding paddy rice combine |
| CN203537864U (en) * | 2013-09-13 | 2014-04-16 | 奇瑞重工股份有限公司 | Harvester fan speeder |
| CN103782731A (en) * | 2014-01-26 | 2014-05-14 | 洛阳理工学院 | Stepless speed change mechanism of threshing cylinder of combined harvester |
| CN203788717U (en) * | 2014-02-12 | 2014-08-27 | 奇瑞重工股份有限公司 | Harvester and wind speed adjusting device for draught fan of harvester |
| CN204518542U (en) * | 2015-03-04 | 2015-08-05 | 江苏大学 | A kind of combine harvester cleaning fan |
| CN204579192U (en) * | 2015-04-30 | 2015-08-26 | 中联重机股份有限公司 | A kind of harvester reel automatic speed governing device and grain header |
| CN206078158U (en) * | 2016-09-23 | 2017-04-12 | 山东巨明机械有限公司 | Grain harvesters cleaning fan speed adjusting device |
| CN207802831U (en) * | 2017-12-22 | 2018-09-04 | 江苏沃得农业机械有限公司 | A kind of electric speed regulation mechanism for harvester centrifugal fan |
-
2017
- 2017-12-22 CN CN201711399066.2A patent/CN109076794B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4466230A (en) * | 1981-05-20 | 1984-08-21 | Sperry Corporation | Automatic fan speed adjuster for combine harvester |
| CN2640217Y (en) * | 2003-08-26 | 2004-09-15 | 中国农业机械化科学研究院 | Self-running self-feeding paddy rice combine |
| CN203537864U (en) * | 2013-09-13 | 2014-04-16 | 奇瑞重工股份有限公司 | Harvester fan speeder |
| CN103782731A (en) * | 2014-01-26 | 2014-05-14 | 洛阳理工学院 | Stepless speed change mechanism of threshing cylinder of combined harvester |
| CN203788717U (en) * | 2014-02-12 | 2014-08-27 | 奇瑞重工股份有限公司 | Harvester and wind speed adjusting device for draught fan of harvester |
| CN204518542U (en) * | 2015-03-04 | 2015-08-05 | 江苏大学 | A kind of combine harvester cleaning fan |
| CN204579192U (en) * | 2015-04-30 | 2015-08-26 | 中联重机股份有限公司 | A kind of harvester reel automatic speed governing device and grain header |
| CN206078158U (en) * | 2016-09-23 | 2017-04-12 | 山东巨明机械有限公司 | Grain harvesters cleaning fan speed adjusting device |
| CN207802831U (en) * | 2017-12-22 | 2018-09-04 | 江苏沃得农业机械有限公司 | A kind of electric speed regulation mechanism for harvester centrifugal fan |
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| Publication number | Publication date |
|---|---|
| CN109076794A (en) | 2018-12-25 |
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