CN111108869B - Seed metering device - Google Patents
Seed metering device Download PDFInfo
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- CN111108869B CN111108869B CN202010062616.7A CN202010062616A CN111108869B CN 111108869 B CN111108869 B CN 111108869B CN 202010062616 A CN202010062616 A CN 202010062616A CN 111108869 B CN111108869 B CN 111108869B
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- 238000009331 sowing Methods 0.000 claims abstract description 86
- 238000010899 nucleation Methods 0.000 claims abstract description 82
- 230000005540 biological transmission Effects 0.000 claims abstract description 66
- 230000002093 peripheral effect Effects 0.000 claims abstract description 10
- 230000001360 synchronised effect Effects 0.000 claims description 10
- 238000005452 bending Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 4
- 239000002245 particle Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 2
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000000306 component Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000008358 core component Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/20—Parts of seeders for conducting and depositing seed
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Sowing (AREA)
Abstract
The invention discloses a seed metering device, wherein a shell is provided with a top plate, a first side plate and a second side plate, a seed inlet is formed in the top plate, and a first baffle plate and a second baffle plate are obliquely fixed between the first side plate and the second side plate; the lower end of the second baffle is provided with a seed outlet, the transmission shaft is rotationally connected with the first side plate and the second side plate, the transmission shaft is fixedly provided with a driving sowing wheel, a driven sowing wheel is sleeved on the transmission shaft and detachably connected with the driving sowing wheel, the sizes of sowing teeth arranged on the driving sowing wheel and the driven sowing wheel are different, and the outer side surfaces of the driving sowing wheel and the driven sowing wheel are opposite to the seed outlet; the seeding control frame is detachably connected to the second baffle plate and is covered on the outer peripheral sides of the driving seeding wheel and the driven seeding wheel; the transmission shaft is in transmission connection with the driving device. Aims at solving the problem that seed metering devices in the prior art can not simultaneously sow seeds with different particle sizes. The effect is as follows: the adaptability of the seed sowing device to seed particles is obviously improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of core components of a seeder, in particular to a seed metering device.
Background
The seed metering ware is the core component of seeder for carry out even equivalent distribution to the seed of seeder seed case, the good quality of seeder seed quality directly depends on the performance of seed metering ware, seed wheel structure of the seed metering ware of drill among the prior art is single, can only realize the regulation of the volume of sowing of single kind of seed size, can't be applicable to the seed of equidimension, and the seed of great granule and the seed of less granule often need change different seed metering ware just can satisfy the user demand, lacks a seed metering ware that can realize the seed of different granule sizes of same seed metering ware through simple component adjustment.
Disclosure of Invention
Therefore, the embodiment of the invention provides a seed metering device, which aims to solve the problem that seeds with different particle sizes cannot be sown simultaneously by the seed metering device in the prior art.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
According to a first aspect of an embodiment of the present invention, a seed metering device includes a housing, a first baffle, a second baffle, a drive shaft, a driving sowing wheel, a driven sowing wheel, a sowing control frame, and a driving device; the shell is provided with a top plate, a first side plate and a second side plate, wherein the first side plate and the second side plate are vertically fixed on the top plate, the first side plate and the second side plate are mutually parallel, a seed inlet is formed in the top plate, the first baffle plate and the second baffle plate are obliquely fixed between the first side plate and the second side plate, and an accommodating cavity with an open upper end is formed among the first baffle plate, the second baffle plate, the first side plate and the second side plate; the lower end of the second baffle is provided with a seed outlet, two ends of the transmission shaft are respectively connected with the first side plate and the second side plate in a rotating way, a driving sowing wheel is fixed on the transmission shaft, a driven sowing wheel is sleeved on the transmission shaft and is detachably connected with the driving sowing wheel, the size of sowing teeth arranged on the driving sowing wheel is different from that of sowing teeth arranged on the driven sowing wheel, and the outer side surfaces of the driving sowing wheel and the driven sowing wheel are opposite to the seed outlet; the seeding control frame is detachably connected to the second baffle plate, the seeding control frame is covered on the outer peripheral sides of the driving seeding wheel and the driven seeding wheel, and a seed discharging opening with adjustable size is arranged between the seeding control frame and the outer peripheral side bottom surfaces of the driving seeding wheel and the driven seeding wheel; the transmission shaft is in transmission connection with the driving device.
Further, the device also comprises a split tongue plate, a tongue plate rotating shaft and a split pin; the seeding control frame is provided with two vertical side walls which are parallel to each other, two ends of the tongue plate rotating shaft are respectively connected to the two side walls of the seeding control frame in a rotating way, one end of the opening tongue plate is sleeved and fixed on the tongue plate rotating shaft, the other end of the opening tongue plate extends to the outer side walls of the driving seeding wheel and the driven seeding wheel, the opening tongue plate is provided with an arc surface which is matched with the outer peripheral sides of the driving seeding wheel and the driven seeding wheel, the two side walls of the seeding control frame are respectively provided with a plurality of adjusting holes, the cotter pins are correspondingly inserted into one group of adjusting holes, and one end downside of the opening tongue plate deviating from the tongue plate rotating shaft is abutted to the cotter pins.
Further, the seeding control frame also comprises a tongue plate adjusting plate, one end of the tongue plate adjusting plate is fixed at the end part of the tongue plate rotating shaft, and the tongue plate adjusting plate is positioned at the outer side of the vertical side wall of the seeding control frame.
Further, the device also comprises a positioning sleeve, an adjusting pin and an adjusting screw; the locating sleeve is fixed on the transmission shaft, the outer side wall of the locating sleeve is a cylindrical surface, the driven seeding wheel is sleeved on the outer side wall of the locating sleeve, round holes are formed in spoke surfaces of the driving seeding wheel and the driven seeding wheel, the adjusting pin is inserted into the round holes of the driving seeding wheel and the driven seeding wheel, the adjusting screw is in threaded connection with the driven seeding wheel along the radial direction of the driven seeding wheel, and the tail end of the adjusting screw is abutted to the adjusting pin.
Further, the transmission shaft is a hexagonal shaft, and a hexagonal hole is formed in the positioning sleeve.
Further, the driving device comprises a driving motor, a driving belt pulley, a driven belt pulley and a synchronous belt; the driving motor is arranged between the first side plate and the second side plate, the shell of the driving motor is fixed on the first side plate, the output shaft of the driving motor penetrates through the first side plate to be fixed with the driving belt pulley, the driven belt pulley is rotationally fixed at the end part of the transmission shaft, the driven belt pulley is connected with the driving belt pulley through a synchronous belt, and the driving belt pulley and the driven belt pulley are both positioned at the outer side of the first side plate.
Further, the belt pulley driving device further comprises a transmission protection cover, the transmission protection cover is clamped on the first side plate where the driving belt pulley and the driven belt pulley are located, and the transmission protection cover covers the driving belt pulley, the driven belt pulley and the synchronous belt on the first side plate of the shell.
Further, still include a plurality of guard shield fixing clips, a plurality of fixing clips can be dismantled and connect on first curb plate, and the guard shield fixing clip is bent for the shell fragment and is formed, and the guard shield fixing clip has from outside to interior opening that increases gradually, and the inside of transmission safety cover is provided with a plurality of joint protruding that correspond with the guard shield fixing clip, and the joint that the joint protruding corresponds is in the guard shield fixing clip.
Further, still include the joint screw, the guard shield fixation card passes through the joint screw and can dismantle the connection on first curb plate.
Further, the power supply device further comprises a driving circuit box, the driving circuit box is detachably arranged on the second side plate, and a power supply indicator lamp, a stall state lamp, a fault state lamp and a communication state lamp are arranged on the outer surface of the driving circuit box.
The invention has the following advantages: according to the invention, the driving sowing wheel and the driven sowing wheel are arranged on the transmission shaft, so that the seed sowing device can be simultaneously suitable for crop seeds with different particle sizes, and the adaptability of the seed sowing device to seed particles is obviously improved; the shell is arranged to be in the structure of the top plate, the first side plate and the second side plate, and the first baffle and the second baffle are matched to form the accommodating cavity for accommodating seeds of the seed sowing device, so that the structure is simple, the huge mould cost required by the mould opening of the shell of the conventional seed sowing device is reduced, and the processing cost is obviously reduced; meanwhile, the seeding apparatus has the advantages of simple component structure, low processing cost and convenient repair and maintenance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.
The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the invention, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present invention, should fall within the ambit of the technical disclosure.
Fig. 1 is a perspective view of a seed metering device according to some embodiments of the present invention.
Fig. 2 is a perspective view of a first perspective view of a seed metering device according to some embodiments of the present invention with a transmission protection cover removed.
Fig. 3 is a perspective view of a second perspective view of a seed metering device according to some embodiments of the present invention with a transmission protection cover removed.
Fig. 4 is a perspective view of a third perspective view of a seed metering device according to some embodiments of the present invention with a transmission protection cover removed.
Fig. 5 is an exploded view of a seed metering device according to some embodiments of the present invention.
Fig. 6 is a partial block diagram of a seed metering device according to some embodiments of the present invention.
Fig. 7 is a front view of a seed metering device according to some embodiments of the present invention.
Fig. 8 is a top view of a seed metering device according to some embodiments of the present invention.
Fig. 9 is a left side view of a seed meter according to some embodiments of the present invention.
In the figure: 1. the seed sowing device comprises a shell, 2, a seed inlet, 3, a first baffle, 4, a second baffle, 5, a seed outlet, 6, a transmission shaft, 7, a driven sowing wheel, 8, a driving sowing wheel, 9, a sowing control frame, 10 adjusting holes, 11, cotter pins, 12, a driving belt wheel, 13, a driven belt wheel, 14, a synchronous belt, 15, clamping screws, 16, a shield fixing clamp, 17, a transmission protecting cover, 18, a driving circuit box, 19, an opening tongue plate, 20, a tongue plate rotating shaft, 21, a driving motor, 22, a tongue plate adjusting plate, 23, a positioning sleeve, 24, an adjusting pin, 25, an adjusting screw, 26, a first side plate, 27 and a second side plate.
Detailed Description
Other advantages and advantages of the present invention will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1 to 9, a seed metering device in the present embodiment includes a housing 1, a first baffle 3, a second baffle 4, a transmission shaft 6, a driving sowing wheel 8, a driven sowing wheel 7, a sowing control frame 9, and a driving device; the shell 1 is provided with a top plate and a first side plate 26 and a second side plate 27 which are vertically fixed on the top plate, the first side plate 26 and the second side plate 27 are parallel to each other, the top plate is provided with a seed inlet 2, the first baffle plate 3 and the second baffle plate 4 are obliquely fixed between the first side plate 26 and the second side plate 27, and a containing cavity with an open upper end is formed among the first baffle plate 3, the second baffle plate 4, the first side plate 26 and the second side plate 27; the lower end of the second baffle 4 is provided with a seed outlet 5, two ends of a transmission shaft 6 are respectively connected with a first side plate 26 and a second side plate 27 in a rotating way, a driving sowing wheel 8 is fixed on the transmission shaft 6, a driven sowing wheel 7 is sleeved on the transmission shaft 6 and is detachably connected with the driving sowing wheel 8, the size of sowing teeth arranged on the driving sowing wheel 8 is different from that of sowing teeth arranged on the driven sowing wheel 7, and the outer side surfaces of the driving sowing wheel 8 and the driven sowing wheel 7 are opposite to the seed outlet 5; the seeding control frame 9 is detachably connected to the second baffle plate 4, the seeding control frame 9 is covered on the outer peripheral sides of the driving seeding wheel 8 and the driven seeding wheel 7, and a seed discharging opening with adjustable size is arranged between the seeding control frame 9 and the outer peripheral side bottom surfaces of the driving seeding wheel 8 and the driven seeding wheel 7; the transmission shaft 6 is connected with the driving device in a transmission way.
In the embodiment, the shell 1 is a structure formed by bending a steel plate to form a top plate, a first side plate 26 and a second side plate 27, a connecting hole connected with an inoculation box is formed in the upper side of the top plate, the open end of a containing cavity formed between the first baffle plate 3, the second baffle plate 4 and the first side plate 26 and the second side plate 27 is a seed inlet 2, two ends of the transmission shaft 6 are respectively connected to the first side plate 26 and the second side plate 27 through a bearing and a bearing seat in a rotating way, and the seed outlet 5 is used for conveying seeds to a seed outlet of the seeding control frame 9 through rotation of the driving seeding wheel 8 and the driven seeding wheel 7; the driving device consists of a motor and a transmission device, and the transmission device can be in the forms of gear transmission, belt transmission, chain transmission and the like; the seeding teeth on the driving seeding wheel 8 are double rows, the two rows of seeding teeth on the driving seeding wheel 8 are staggered, the seeding teeth on the driven seeding wheel 7 are double rows, the two rows of seeding teeth on the driven seeding wheel 7 are staggered, and the stability of seed flow is improved through the staggered seeding teeth.
The technical effects achieved by the embodiment are as follows: by arranging the driving sowing wheel 8 and the driven sowing wheel 7 on the transmission shaft 6 in the embodiment, the seeding device can be simultaneously suitable for crop seeds with different particle sizes, and the adaptability of the seeding device to seed particles is obviously improved; by arranging the shell 1 as the structure of the top plate, the first side plate 26 and the second side plate 27, and matching with the first baffle plate 3 and the second baffle plate 4 to form a containing cavity for containing seeds of the seed sowing device, the structure is simple, the huge mould cost required by the mould opening of the shell 1 of the conventional seed sowing device is reduced, and the processing cost is obviously reduced; meanwhile, the seeding apparatus has the advantages of simple component structure, low processing cost and convenient repair and maintenance.
Example 2
As shown in fig. 1 to 9, a seed metering device in this embodiment includes all the technical features of embodiment 1, and in addition, includes a split tongue plate 19, a tongue plate rotating shaft 20 and a split pin 11; the seeding control frame 9 is provided with two vertical side walls which are parallel to each other, two ends of the tongue plate rotating shaft 20 are respectively connected to the two side walls of the seeding control frame 9 in a rotating way, one end of the opening tongue plate 19 is sleeved and fixed on the tongue plate rotating shaft 20, the other end of the opening tongue plate 19 extends to the outer side walls of the driving seeding wheel 8 and the driven seeding wheel 7, the opening tongue plate 19 is provided with an arc surface which is matched with the outer peripheral sides of the driving seeding wheel 8 and the driven seeding wheel 7, the two side walls of the seeding control frame 9 are respectively provided with a plurality of adjusting holes 10, the opening pins 11 are correspondingly inserted into one group of adjusting holes 10, and the lower side of one end of the opening tongue plate 19, which is away from the tongue plate rotating shaft 20, is abutted to the opening pins 11; and the seeding control frame also comprises a tongue plate adjusting plate 22, one end of the tongue plate adjusting plate 22 is fixed at the end part of the tongue plate rotating shaft 20, and the tongue plate adjusting plate 22 is positioned outside the vertical side wall of the seeding control frame 9.
In the embodiment, the gap between the opening tongue plate 19 and the driving sowing wheel 8 and the driven sowing wheel 7 is the seed outlet of the seed sowing device, wherein a containing cavity communicated from the seed outlet 5 to the outside is arranged in the sowing control frame 9, and the opening tongue is arranged in the containing cavity; the distance between the regulating holes 10 and the rotating shaft of the opening tongue plate 19 is equal, the regulating holes 10 are distributed at equal intervals along an arc, scale values are arranged on the extending arc curve of the regulating holes 10, and the regulating size of the swatter weight can be known by arranging the scale values.
In the use process, the deflection angle of the split tongue plate 19 is adjusted through the split pin 11, so that the adjustment of the gaps between the tail end of the split tongue plate 19 and the outer side walls of the driving sowing wheel 8 and the driven sowing wheel 7 is realized, and the adjustment of the size of the seed discharging opening is realized.
The beneficial effects in this embodiment are: by arranging the opening tongue plate 19, the convenience of adjusting the seed metering quantity of the seed metering device is obviously improved, and the adjustment is convenient and reliable; by providing the flap adjustment plate 22, the difficulty of manually adjusting the open flap 19 is reduced, and the amount of force required is reduced.
Example 3
As shown in fig. 1 to 9, a seed metering device in this embodiment includes all the technical features of embodiment 2, and in addition, includes a positioning sleeve 23, an adjusting pin 24 and an adjusting screw 25; the positioning sleeve 23 is fixed on the transmission shaft 6, the outer side wall of the positioning sleeve 23 is a cylindrical surface, the driven sowing wheel 7 is sleeved on the outer side wall of the positioning sleeve 23, round holes are formed in the spoke surfaces of the driving sowing wheel 8 and the driven sowing wheel 7, the adjusting pin 24 is inserted into the round holes of the driving sowing wheel 8 and the driven sowing wheel 7, the adjusting screw 25 is in threaded connection with the driven sowing wheel 7 along the radial direction of the driven sowing wheel 7, and the tail end of the adjusting screw 25 is abutted against the adjusting pin 24; the transmission shaft 6 is a hexagonal shaft, a hexagonal hole is formed in the positioning sleeve 23, in this embodiment, the axis of the adjusting pin 24 is parallel to the axis of the transmission shaft 6, and the driven sowing wheel 7 is rotatable relative to the outer side wall of the positioning sleeve 23.
In the use process, when the driven sowing wheel 7 is required to be fixed on the driving sowing wheel 8, the adjusting pin 24 passes through the driving sowing wheel 8 and the driven sowing wheel 7, and the adjusting screw 25 is screwed and abutted on the adjusting pin 24; when the driven sowing wheel 7 is required not to rotate along with the driving sowing wheel 8, the adjusting screw 25 is unscrewed to be separated from the adjusting pin 24, and the adjusting pin 24 is pulled out of the driving sowing wheel 8.
The beneficial effects in this embodiment are: by arranging the positioning sleeve 23, the rotation of the driven sowing wheel 7 on the positioning sleeve 23 is realized; by arranging the adjusting pin 24 and the adjusting screw 25, the difficulty of the matching relationship between the driving sowing wheel 8 and the driven sowing wheel 7 is obviously reduced, the adjustment is convenient and quick, the time is saved, and the adjustment efficiency is obviously improved.
Example 4
As shown in fig. 1 to 9, a seed metering device in this embodiment includes all the technical features of embodiment 3, except that the driving device includes a driving motor 21, a driving pulley 12, a driven pulley 13, and a timing belt 14; the driving motor 21 is arranged between the first side plate 26 and the second side plate 27, the shell 1 of the driving motor 21 is fixed on the first side plate 26, the driving pulley 12 penetrates through the first side plate 26, the driven pulley 13 is rotationally fixed at the end part of the transmission shaft 6, the driven pulley 13 is in transmission connection with the driving pulley 12 through the synchronous belt 14, and the driving pulley 12 and the driven pulley 13 are positioned at the outer side of the first side plate 26; the transmission protection cover 17 is clamped on a first side plate 26 where the driving pulley 12 and the driven pulley 13 are located, and the transmission protection cover 17 covers the driving pulley 12, the driven pulley 13 and the synchronous belt 14 on the first side plate 26 of the shell 1; the protection cover comprises a first side plate 26, a second side plate 26, a transmission protection cover 17 and a plurality of protection cover fixing cards 16, wherein the protection cover fixing cards 16 are detachably connected to the first side plate 26, the protection cover fixing cards 16 are formed by bending elastic sheets, the protection cover fixing cards 16 are provided with openings which are gradually increased from outside to inside, and the transmission protection cover 17 is internally provided with a plurality of clamping bulges corresponding to the protection cover fixing cards 16 and clamped in the protection cover fixing cards 16; the cover fixing clamp 16 is detachably connected to the first side plate 26 through the clamping screw 15.
In this embodiment, the driving pulley 12 and the driven pulley 13 are both synchronous pulleys, the driving pulley 12 is fixed on the output shaft of the driving motor 21 through pin connection, a hexagonal hole is arranged in the driven pulley 13, and the driven pulley 13 is fixed on the transmission shaft 6 through a gasket and a screw.
The beneficial effects in this embodiment are: by arranging the synchronous belt 14, the stability of power transmission is improved, the seed sowing device runs stably, slipping is not easy in the transmission process, and the uniformity of seed sowing quantity is remarkably improved; by arranging the transmission protection cover 17, the phenomenon that the transmission device is wound and blocked is avoided, and the safety of the transmission mechanism is ensured; the shield fixing clamp 16 formed by bending the elastic sheets obviously reduces the disassembly difficulty of the transmission protective cover 17, improves the maintenance efficiency and reduces the tools required for disassembling the transmission protective cover 17.
Example 5
As shown in fig. 1 to 9, a seed metering device in this embodiment includes all the technical features in embodiment 4, and in addition, the seed metering device further includes a driving circuit box 18, the driving circuit box 18 is detachably disposed on the second side plate 27, the outer surface of the driving circuit box 18 is provided with a power indicator lamp, a stall condition lamp, a fault condition lamp and a communication condition lamp, in this embodiment, a circuit board and a controller are disposed in the driving circuit box 18, the controller is electrically connected with the driving motor 21 through the circuit board, the power indicator lamp, the stall condition lamp, the fault condition lamp and the communication condition lamp are all electrically connected with the controller through the circuit board, and the controller can adjust the rotation speed of the seed metering device according to the rotation speed of an encoder disposed on a travelling wheel of the machine tool; the stall state and the fault state of the seed metering device can be realized through detection signals of a sensor, for example, a photoelectric sensor is arranged at a seed metering port of the seed metering device, so that whether seeds are normally discharged or not is detected, the signals are transmitted to a controller to realize the display of the fault state, and the circuit is a common circuit in the prior art in the seeder.
The beneficial effects in this embodiment are: by providing the drive circuit box 18, the safety of the electronic components provided on the seed metering device is protected.
While the invention has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
The terms such as "upper", "lower", "left", "right", "middle" and the like are also used in the present specification for convenience of description, but are not intended to limit the scope of the present invention, and the changes or modifications of the relative relationship thereof are considered to be within the scope of the present invention without substantial modification of the technical content.
Claims (7)
1. The seed metering device is characterized by comprising a shell (1), a first baffle plate (3), a second baffle plate (4), a transmission shaft (6), a driving sowing wheel (8), a driven sowing wheel (7), a sowing control frame (9) and a driving device; the shell (1) is provided with a top plate, a first side plate (26) and a second side plate (27) which are vertically fixed on the top plate, the first side plate (26) and the second side plate (27) are mutually parallel, the top plate is provided with a seed inlet (2), the first baffle (3) and the second baffle (4) are obliquely fixed between the first side plate (26) and the second side plate (27), and an accommodating cavity with an open upper end is formed between the first baffle (3), the second baffle (4), the first side plate (26) and the second side plate (27); the seed outlet (5) is formed in the lower end of the second baffle (4), two ends of the transmission shaft (6) are respectively connected with the first side plate (26) and the second side plate (27) in a rotating mode, the driving sowing wheel (8) is fixed on the transmission shaft (6), the driven sowing wheel (7) is sleeved on the transmission shaft (6) and is detachably connected with the driving sowing wheel (8), sowing teeth arranged on the driving sowing wheel (8) are different in size from sowing teeth arranged on the driven sowing wheel (7), and the outer side faces of the driving sowing wheel (8) and the driven sowing wheel (7) are opposite to the seed outlet (5); the seeding control frame (9) is detachably connected to the second baffle plate (4), the seeding control frame (9) is covered on the outer peripheral sides of the driving seeding wheel (8) and the driven seeding wheel (7), and a seeding opening with adjustable size is arranged between the seeding control frame (9) and the outer peripheral side bottom surfaces of the driving seeding wheel (8) and the driven seeding wheel (7); the transmission shaft (6) is in transmission connection with the driving device;
The novel tongue plate also comprises a tongue plate opening (19), a tongue plate rotating shaft (20) and a cotter pin (11); the seeding control frame (9) is provided with two vertical side walls which are parallel to each other, two ends of the tongue plate rotating shaft (20) are respectively connected to the two side walls of the seeding control frame (9) in a rotating way, one end of the opening tongue plate (19) is sleeved and fixed on the tongue plate rotating shaft (20), the other end of the opening tongue plate (19) extends to the outer side walls of the driving seeding wheel (8) and the driven seeding wheel (7), the opening tongue plate (19) is provided with an arc surface which is matched with the common peripheral side of the driving seeding wheel (8) and the driven seeding wheel (7), a plurality of adjusting holes (10) are respectively formed in the two side walls of the seeding control frame (9), the opening tongue plate (11) is correspondingly inserted into one group of adjusting holes (10), and one end lower side of the opening tongue plate (19) deviating from the tongue plate rotating shaft (20) is abutted against the opening tongue plate (11);
The seeding control device further comprises a tongue plate adjusting plate (22), wherein one end of the tongue plate adjusting plate (22) is fixed at the end part of the tongue plate rotating shaft (20), and the tongue plate adjusting plate (22) is positioned at the outer side of the vertical side wall of the seeding control frame (9);
The device also comprises a positioning sleeve (23), an adjusting pin (24) and an adjusting screw (25); the positioning sleeve (23) is fixed on the transmission shaft (6), the outer side wall of the positioning sleeve (23) is a cylindrical surface, the driven seeding wheel (7) is sleeved on the outer side wall of the positioning sleeve (23), round holes are formed in the spoke surfaces of the driving seeding wheel (8) and the driven seeding wheel (7), the adjusting pin (24) is inserted into the round holes of the driving seeding wheel (8) and the driven seeding wheel (7), the adjusting screw (25) is connected with the driven seeding wheel (7) in a threaded mode along the radial direction of the driven seeding wheel (7), and the tail end of the adjusting screw (25) is abutted to the adjusting pin (24).
2. A seed metering device according to claim 1, characterised in that the drive shaft (6) is a hexagonal shaft, and the locating sleeve (23) is internally provided with a hexagonal hole.
3. A seed metering device according to claim 1, characterised in that the drive means comprises a drive motor (21), a drive pulley (12), a driven pulley (13) and a timing belt (14); the driving motor (21) is arranged between the first side plate (26) and the second side plate (27), a shell (1) of the driving motor (21) is fixed on the first side plate (26), an output shaft of the driving motor (21) penetrates through the first side plate (26) to be fixed with the driving pulley (12), the driven pulley (13) is rotationally fixed at the end part of the transmission shaft (6), the driven pulley (13) is in transmission connection with the driving pulley (12) through the synchronous belt (14), and the driving pulley (12) and the driven pulley (13) are both positioned at the outer side of the first side plate (26).
4. A seed metering device according to claim 3, further comprising a transmission protection cover (17), wherein the transmission protection cover (17) is clamped on a first side plate (26) where the driving pulley (12) and the driven pulley (13) are located, and the transmission protection cover (17) covers the driving pulley (12), the driven pulley (13) and the synchronous belt (14) on the first side plate (26) of the housing (1).
5. The seed metering device according to claim 4, further comprising a plurality of shield fixing clips (16), wherein the plurality of shield fixing clips are detachably connected to the first side plate (26), the shield fixing clips (16) are formed by bending elastic sheets, the shield fixing clips (16) are provided with openings which are gradually enlarged from outside to inside, a plurality of clamping protrusions corresponding to the shield fixing clips (16) are arranged in the transmission protection cover (17), and the clamping protrusions are correspondingly clamped in the shield fixing clips (16).
6. The seed metering device of claim 5, further comprising a clamping screw (15), wherein the shroud securing clip (16) is removably attached to the first side plate (26) by the clamping screw (15).
7. The seed metering device according to claim 1, further comprising a drive circuit box (18), wherein the drive circuit box (18) is detachably arranged on the second side plate (27), and a power indicator lamp, a stall state lamp, a fault state lamp and a communication state lamp are arranged on the outer surface of the drive circuit box (18).
Priority Applications (1)
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