CN201911019U

CN201911019U - Vacuum seed extracting type precision hole seeding device provided with negative pressure storage tank

Info

Publication number: CN201911019U
Application number: CN2011200145727U
Authority: CN
Inventors: 陈恒
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-01-18
Filing date: 2011-01-18
Publication date: 2011-08-03
Anticipated expiration: 2021-01-18

Abstract

The utility model relates to an agricultural seeding machine, particularly to a vacuum seed extracting type precision hole seeding device provided with a negative pressure storage tank. The precision hole seeding device comprises a hole seeding drum, an air-aspiration type seed extracter and a negative pressure tube connected with the air-aspiration type seed extracter; the negative pressure tube connected with the air-aspiration type seed extracter is connected with a negative pressure storage tank (4); and the negative pressure storage tank (4) is connected with a negative pressure pump (16). Compared with the prior art, the vacuum seed extracting type precision hole seeding device has the advantages as follows: the device adopts the negative pressure storage tank to balance the required negative pressure and the stability of a seed suction hole, so as to improve the quality of precision seed extraction and the working performance of the whole machine; moreover, through the design that a seed suction plate and the hole seeding drum rotate coaxially at the same speed, the structure is simple, the manufacture cost is low, and the operation and the adjustment are simple and fast; and through the design that the seed suction plate and a negative pressure cavity are connected as a whole, the problem that a conventional seed suction plate has negative pressure loss during rotation is solved, so that better sealing is realized, and the seed suction force is improved remarkably.

Description

The vacuum of band negative pressure basin is got the seed precise hole sowing device

Technical field

The utility model relates to a kind of agricultural seeding machine, and particularly a kind of vacuum with the negative pressure basin is got the seed precise hole sowing device.

Technical background

At present, the development that deepens continuously along with precision agriculture, precision drilling farm machinery as sowing link in the precision agriculture have also been accelerated paces to the agricultural machinery modernization development, especially a kind of vacuum is got the seed precision drill, because the costliness of breeding and the needs of the accurate agriculture requirement of high standard, the new technology of these facility continued to bring out in recent years, and new product constantly emerges.The most new products that emerged have solved some key issues of different technologies aspect to some extent, with the precise hole sowing technical development of part to a new step.But there are some defectives in all multi-functional and serviceabilities etc. in these products aspect some to some extent.1., there is defective in the overall construction design of negative pressure system the main problem that exists has:, cause the big or sealing instability of negative-pressure sealing difficulty easily, and negative pressure pump is when being connected transmission with the rear output shaft of agricultural four-wheel tractor, negative pressure pump break-off when agricultural four-wheel tractor carries out the clutch operation can't be got the seed dibbler to vacuum the stable negative pressure that continues is provided.What 2., vacuum was got the seed device gets seed drive mechanism complexity, the instability of the loaded down with trivial details and serviceability that the rising that causes manufacturing cost and operation are adjusted.

The utility model content

The purpose of this utility model is to solve the problem that exists in the above-mentioned technology, and the vacuum of provide a kind of negative regulation, getting the smart amount of seed, performance brilliance, easy-operating band negative pressure basin simple in structure is got the seed precision drill.

The purpose of this utility model is achieved in that

The utility model mainly comprises bunch planting cylinder, air-sucking type seed-taking device and the negative pressure pipe that is connected with the air-sucking type seed-taking device, and negative pressure Guan Yuyi the negative pressure basin 4 that is connected with the air-sucking type seed-taking device connects, and negative pressure basin 4 is connected with negative pressure pump 16; The negative pressure pipe that is connected with the air-sucking type seed-taking device is the set hollow shaft of bunch planting drum shaft 12, and the middle part of hollow shaft 12 is installed in the center of negative pressure cavity 25 by bearing 18, airtight seal 28 and bearing 31, airtight seal 30; The vacuum cavity 20 of air-sucking type seed-taking device is fixedly connected with the bedplate 1 of bunch planting inner wall of rotary drum; The center of the vacuum cavity 20 of air-sucking type seed-taking device is provided with bearing block 35, and airtight seal 30 and bearing 31 are installed in the bearing block 35; Center at the bedplate 1 of bunch planting inner wall of rotary drum is provided with bearing block 6, and airtight seal 28 and bearing 18 are installed in the bearing block 6; One side and the vacuum cavity 20 of the seed absorbing plate 26 of air-sucking type seed-taking device link, and the five equilibrium seed suction hole 27 that adopts seed absorbing plate 26 to be provided with is corresponding with the five equilibrium negative pressure hole 36 that vacuum cavity 20 is provided with; On the bearing block 6 on the central shaft of the bedplate 1 of bunch planting inner wall of rotary drum, positioning seat 40 is set, on the connected location-plate 5 slide block 38 is set, the friction of the slide block 38 corresponding contact in negative pressure hole 36 districts on end and the vacuum cavity 20 of holding one's breath; The end that is located by connecting of described slide block 38 is installed with the 40 one-tenth plug-in types of positioning seat on the location-plate 5, is provided with spring 39 therebetween.

The utility model compared with prior art has the following advantages: the utility model has adopted the pressure and stability that comes the required negative pressure of balance seed suction hole with the negative pressure basin, thereby has improved smart quality of measuring seed, has improved the service behaviour of complete machine.In addition, adopt seed absorbing plate and the coaxial design of bunch planting cylinder with fast transmission, simple in structure, low cost of manufacture, simple and fast is adjusted in operation; The design of adopting seed absorbing plate and vacuum cavity to be connected as a single entity has solved the problem that has the negative pressure loss when conventional seed absorbing plate rotates, and has realized better seal, has obviously improved kind of the power of inhaling.

Description of drawings

Fig. 1 is the utility model figure sectional plan view;

Fig. 2 is the L place amplification view of Fig. 1;

Fig. 3 is the B-B cutaway view of Fig. 1;

Fig. 4 is the I place amplification view of Fig. 1.

Embodiment

Below in conjunction with accompanying drawing the utility model feature and correlated characteristic thereof are described in further detail, so that technical staff of the same trade understands the utility model more

As accompanying drawing 1-4 signal, the label among the figure is represented respectively: 1-bedplate, 2-bolt, 3-negative pressure pipe, 4-negative pressure basin, 5-location-plate, 6-bearing block, 7-Connection Block, 8-locknut, 9-negative pressure channel, 10-flat key, 11-negative pressure switch, 12-hollow shaft, 13-belt pulley, 14-negative pressure pipe, 15-hitch frame, 16-negative pressure pump, 17-inlet plenum 18,31-bearing, 19-press mold wheel, 20-vacuum cavity, 21-duck mouth, 22-bunch planting cylinder, 23-kind of case, defeated kind of the box of 24-inoculation, 25-negative pressure cavity, 26-seed absorbing plate, 27-seed suction hole, 28-airtight seal, 29-negative pressure through-hole, 30-airtight seal, 32-flat key, 33-locknut, 34-enter kind of a hole, 35-bearing block, 36-negative pressure hole, 37-fill kind of a seat, 38-slide block, 39-spring, 40-positioning seat, 41,42,46-intercommunicating pore, 43-the hole of holding one's breath, 44-switch space, 45-the sheet of holding one's breath, 47-spacing.

The utility model mainly comprises bunch planting cylinder 22, air-sucking type seed-taking device and the negative pressure pipe that is connected with the air-sucking type seed-taking device, and negative pressure Guan Yuyi the negative pressure basin 4 that is connected with the air-sucking type seed-taking device connects, and negative pressure basin 4 is connected with negative pressure pump 16; The negative pressure pipe that is connected with the air-sucking type seed-taking device is the set hollow shaft of bunch planting drum shaft 12, and the middle part of hollow shaft 12 is installed in the center of negative pressure cavity 25 by bearing 18, airtight seal 28 and bearing 31, airtight seal 30; The vacuum cavity 20 of air-sucking type seed-taking device is fixedly connected with the bedplate 1 of bunch planting inner wall of rotary drum; The center of the vacuum cavity 20 of air-sucking type seed-taking device is provided with bearing block 35, and airtight seal 30 and bearing 31 are installed in the bearing block 35; Center at the bedplate 1 of bunch planting inner wall of rotary drum is provided with bearing block 6, and airtight seal 28 and bearing 18 are installed in the bearing block 6; One side and the vacuum cavity 20 of the seed absorbing plate 26 of air-sucking type seed-taking device link, and the five equilibrium seed suction hole 27 that adopts seed absorbing plate 26 to be provided with is corresponding with the five equilibrium negative pressure hole 36 that vacuum cavity 20 is provided with; On the bearing block 6 on the central shaft of the bedplate 1 of bunch planting inner wall of rotary drum, positioning seat 40 is set, on the connected location-plate 5 slide block 38 is set, the friction of the slide block 38 corresponding contact in negative pressure hole 36 districts on end and the vacuum cavity 20 of holding one's breath; Being located by connecting of described slide block 38 holds the positioning seat with on the location-plate 5 to become plug-in type to install, and is provided with spring 39 therebetween.Further expand explanation, the utility model mainly comprises bunch planting cylinder, air-sucking type seed-taking device and the negative pressure pipe that is connected with the air-sucking type seed-taking device, and negative pressure Guan Yuyi the negative pressure basin 4 that is connected with the air-sucking type seed-taking device connects, and negative pressure basin 4 is connected with negative pressure pump 16; The center of vacuum cavity 20 is provided with bearing block 35, airtight seal 30 and bearing 31 are installed in the bearing block 35, the center of bedplate 1 is provided with bearing block 6, airtight seal 28 and bearing 18 are installed in the bearing block 6, vacuum cavity 20 is connected as one by bolt 2 with bedplate 1 and forms negative pressure cavity 25, and the middle part of hollow shaft 12 is installed in the center of negative pressure cavity 25 by bearing 18, airtight seal 28 and bearing 31, airtight seal 30; One side 26 of seed absorbing plate links with vacuum cavity 20, and the five equilibrium seed suction hole 27 that adopts seed absorbing plate 26 to be provided with is corresponding continuous with the five equilibrium negative pressure hole 36 that vacuum cavity 20 is provided with; Fill kind of seat 37 and be provided with into kind of hole 34, the one side is fixedly linked with planting case 23, and opposite side contacts with seed absorbing plate 26, and the center of filling kind of seat 37 is passed through flat key 32 and linked to each other with an end of hollow shaft 12, is provided with locknut 33 filling on hollow shaft 12 spindle noses of kind of seat 37 1 sides; Bunch planting cylinder 22 is fixedly linked with press mold wheel 19, bedplate 1, is respectively equipped with defeated kind of box of the inoculation identical with seed suction hole 27 quantity and duck mouth 21 on the internal and external circumference of bunch planting cylinder; Hollow shaft 12 is provided with negative pressure through-hole 29 on the position of negative pressure cavity 25 inside, and be provided with negative pressure channel 9 in its axial centre, this negative pressure channel 9 links to each other with negative pressure pipe 3 and communicates, hollow shaft 12 also is provided with the mechanism of holding one's breath on the position of negative pressure cavity 25 inside, be that positioning seat 40 is connected as a single entity with location-plate 5 and hollow shaft 12, the friction of slide block 38 hold one's breath the end with vacuum cavity 20 on the corresponding contact in negative pressure hole 36 districts, being located by connecting of slide block 38 holds the positioning seat with on the location-plate 5 to become plug-in type to install, and is provided with spring 39 therebetween; Connection Block 7 is fixedly linked with hitch frame 15, and links to each other by flat key 10 with the other end of hollow shaft 12, is provided with locknut 8 on hollow shaft 12 spindle noses in Connection Block 7 outsides; Negative pressure basin 4 is hollow bodies, which is provided with air inlet and exhaust outlet, and air inlet links to each other with negative pressure pipe 3 and communicates, and exhaust outlet links to each other with negative pressure pump 16 by negative pressure pipe 14 and communicates; Exhaust outlet at negative pressure basin 4 is provided with negative pressure switch 11, this negative pressure switch 11 is by the intercommunicating pore 46 that is located on the tank body, intercommunicating pore 41, intercommunicating pore 42, spacing 47, sheet 45 formations of holding one's breath of holding one's breath hole 43 and switch space 44 and being located at 44 inside, switch space, negative pressure switch 11 is when opening, seed suction hole 27 is by negative pressure hole 36, negative pressure cavity 25, negative pressure through-hole 29, negative pressure channel 9, negative pressure pipe 3, negative pressure basin 4, intercommunicating pore 46, intercommunicating pore 41, intercommunicating pore 42, negative pressure pipe 14, inlet plenum 17 communicates with negative pressure pump 16 sealings, negative pressure switch 11 is when closing state, and seed suction hole 27 is by negative pressure hole 36, negative pressure cavity 25, negative pressure through-hole 29, negative pressure channel 9, negative pressure pipe 3 communicates with 4 sealings of negative pressure basin.

The utility model technology links to each other by belt the driving pulley of agricultural four-wheel tractor when using with belt pulley 13 transmissions of negative pressure pump 16, or with the rear output shaft of agricultural four-wheel tractor with after negative pressure pump 16 transmissions link to each other, can come into operation; During use, along with the startup of agricultural four-wheel tractor and the work of negative pressure pump 16, the negative pressure that produces in the negative pressure pump 16 is by inlet plenum 17, negative pressure pipe 14 and the hole 43 of holding one's breath in the negative pressure basin 4 sheet 45 of will holding one's breath picks up, at this moment, the sheet 45 limited 47 of holding one's breath is spacing, hole 43 sheet 45 sealings of being held one's breath of holding one's breath, intercommunicating pore 46 is opened, the negative pressure of negative pressure pump 16 is just by inlet plenum 17, negative pressure pipe 14, intercommunicating pore 42, intercommunicating pore 41, intercommunicating pore 46, negative pressure basin 4, negative pressure pipe 3, negative pressure channel 9, negative pressure through-hole 29, negative pressure cavity 25, negative pressure hole 36, communicate and make seed suction hole 27 generation suction, vacuum fine measure seed work and can carry out with seed suction hole 27; Because it is bigger that negative pressure pump 16 produces the flow of negative pressure, and be no matter the smaller seed suction hole 27 of getting seed does not still get the seed state getting the seed state, flow by its negative pressure loss is all less, continuous operation along with negative pressure pump 16, this just makes and seals in the tighter whole negative pressure system, especially just produce the bigger negative pressure of reserves in the negative pressure basin 4 that vacuum space is bigger, and seed suction hole 27 just produced a bigger and metastable negative pressure source of pressure, solved the problem that the suction of seed absorbing plate 27 changes with agricultural four-wheel tractor throttle size variation in the course of work, get seed for the vacuum of seed suction hole 27 suction that vacuum is bigger and stable is provided, get seed for the stable vacuum of high-quality and just providing the guarantor.When agricultural four-wheel tractor needs to carry out of short duration clutch operation at work, the rear output shaft of agricultural four-wheel tractor just can quit work more momently, negative pressure pump 16 also can quit work thereupon more momently, at this moment, negative pressure in the negative pressure basin 4 just can produce suction to the sheet 45 of holding one's breath in the switch space 44 that loses negative pressure, in negative pressure basin 4 under the effect of negative-pressure sucking, the sheet 45 of holding one's breath is just closed intercommunicating pore 46, has stopped all negative pressure losses except that seed suction hole 27 has the negative pressure loss at this moment; Because the reserves of negative pressure are bigger in the negative pressure basin 4, and seed suction hole 27 is smaller in the negative pressure of ofer short duration time internal loss, at negative pressure pump in 16 of short duration out-of-work times, negative pressure basin 4 can provide enough suction for seed suction hole 27, the disappearance that has solved because of suction makes seed break away from the drawback of seed suction hole, has guaranteed the continuity of working; When beginning to sow, seed is entered and fills in kind of the seat 37 and be attracted on the seed suction hole 27 by entering kind of hole 34 by kind of case 23, at this moment, dibbler rotates in the counterclockwise direction, and slide block 38 is connected as a single entity by location-plate 5 and hollow shaft 12, do not rotate, so the negative pressure hole 36 on the vacuum cavity 20 becomes the frictional rotation state with the state of slide block 38; Rotation along with dibbler, when the seed suction hole 27 that is adsorbed seed turns to the position of slide block 38 with negative pressure hole 36, because negative pressure hole 36 is sealed by slide block 38, the suction at seed suction hole 27 places just disappears, seed just falls in defeated kind of the box 24 of corresponding with it inoculation in the effect of deadweight, and under the inoculation of defeated kind of box 24 of inoculation and defeated kind effect, enter duck mouth 21, and by bunch planting in ground, finished vacuum and got seed and precise hole sowing.

Though below design and embodiment according to the utility model purpose have been done to elaborate with reference to accompanying drawing; but those of ordinary skills can recognize; under the precondition that does not break away from the claim limited range; still can make various improvement and conversion to the utility model, and this improvement and conversion still should belong to protection domain of the present utility model.

Claims

1. the vacuum with the negative pressure basin is got the seed precise hole sowing device, mainly comprise bunch planting cylinder, air-sucking type seed-taking device and the negative pressure pipe that is connected with the air-sucking type seed-taking device, it is characterized in that, negative pressure Guan Yuyi the negative pressure basin (4) that is connected with the air-sucking type seed-taking device connects, and negative pressure basin (4) is connected with negative pressure pump (16).

2. the vacuum of band negative pressure basin according to claim 1 is got the seed precise hole sowing device, it is characterized in that, the negative pressure pipe that is connected with the air-sucking type seed-taking device is the set hollow shaft of bunch planting drum shaft (12), and the middle part of hollow shaft (12) is installed in the center of vacuum cavity (20) by bearing (18), airtight seal (28) and bearing (31), airtight seal (30).

3. the vacuum of band negative pressure basin according to claim 1 is got the seed precise hole sowing device, it is characterized in that, the vacuum cavity of air-sucking type seed-taking device (20) is fixedly connected with the bedplate (1) of bunch planting inner wall of rotary drum.

4. the vacuum of band negative pressure basin according to claim 1 is got the seed precise hole sowing device, it is characterized in that, the center of the vacuum cavity of air-sucking type seed-taking device (20) is provided with bearing block (35), and airtight seal (30) and bearing (31) are installed in the bearing block (35).

5. the vacuum of band negative pressure basin according to claim 1 is got the seed precise hole sowing device, it is characterized in that, center at the bedplate (1) of bunch planting inner wall of rotary drum is provided with bearing block (6), and airtight seal (28) and bearing (18) are installed in the bearing block (6).

6. the vacuum of band negative pressure basin according to claim 1 is got the seed precise hole sowing device, it is characterized in that, one side of the seed absorbing plate of air-sucking type seed-taking device (26) and vacuum cavity (20) link, and the five equilibrium seed suction hole (27) that adopts seed absorbing plate (26) to be provided with is corresponding with the five equilibrium negative pressure hole (36) that vacuum cavity (20) is provided with.

7. the vacuum of band negative pressure basin according to claim 1 is got the seed precise hole sowing device, it is characterized in that, on the bearing block (6) on the central shaft of the bedplate (1) of bunch planting inner wall of rotary drum, positioning seat (40) is set, slide block (38) is set on the connected location-plate (5), and the friction of slide block (38) end of holding one's breath is distinguished corresponding contact with the negative pressure hole (36) on the vacuum cavity (20).

8. the vacuum of band negative pressure basin according to claim 7 is got the seed precise hole sowing device, it is characterized in that, being located by connecting of slide block (38) holds the positioning seat with on the location-plate (5) to become plug-in type to install, and is provided with spring (39) therebetween.