CN208278975U - A kind of pneumatic conveying drawing-in device - Google Patents

A kind of pneumatic conveying drawing-in device Download PDF

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Publication number
CN208278975U
CN208278975U CN201820455622.7U CN201820455622U CN208278975U CN 208278975 U CN208278975 U CN 208278975U CN 201820455622 U CN201820455622 U CN 201820455622U CN 208278975 U CN208278975 U CN 208278975U
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air
pneumatic conveying
blanking tube
outlet
material blanking
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Inventor
于昭洋
胡志超
曹明珠
王申莹
徐弘博
吴峰
顾峰玮
陈有庆
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Nanjing Research Institute for Agricultural Mechanization Ministry of Agriculture
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Nanjing Research Institute for Agricultural Mechanization Ministry of Agriculture
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Abstract

The utility model relates to a kind of pneumatic conveying drawing-in devices, belong to agricultural machinery technological field.The outlet of the device blast pipe is connected to the input end of left and right guide duct and intermediate material blanking tube respectively by shunt and regulation apparatus, the inside of left and right guide duct passes through waffle slab respectively and is connected to the two sides of intermediate material blanking tube, and the outlet end of intermediate material blanking tube is connected to feed pipe;Shunt and regulation apparatus is made of the left and right wind deflector of reducer pipe and shunting tilt adjustable;The inside of left and right guide duct has the air outlet equipped with waffle slab, and arrival end to each air outlet forms guiding air duct;The spout that the top of intermediate material blanking tube has, each spout middle part is equipped with thumb wheel and front and rear is equipped with the triangular-section branching block of apex angle upward.Ingenious in design, compact-sized, simple structure, assembling is convenient, cleaning is convenient, operation is smooth, and suitable for the pneumatic conveying of most granule materials including peanut, the material suitable for mobile combining equipment is conveyed.

Description

A kind of pneumatic conveying drawing-in device
Technical field
The utility model relates to a kind of pneumatic conveying drawing-in device, especially a kind of anti-blocking antiwind pneumatic conveying feeding Device belongs to agricultural machinery technological field.
Background technique
Pneumatic conveying drawing-in device is mainly matched in full feeding peanut pickup combined harvester.Pickup formula combining equipment Peanut can disposably be completed to pick up, the combinings operation such as pluck fruit, clean, conveying, collecting fruit, after picking up, plucking fruit, clean Peanut material needs to collect pod sucking by Pneumatic conveyer, is delivered to fruit-collecting box.Therefore pneumatic conveying drawing-in device It is the chief component of full feeding peanut combination harvest equipment.The high failure rate of existing pneumatic conveying drawing-in device is to restrict connection One of the main reason for closing harvest equipment development, there are four major problems: first, long disconnected branch seedling breaking and residual film easily rewind simultaneously Careless device is dialled in winding;Second, feeding excessive materials easily cause drawing-in device to block;Third will lead to feeding after line clogging Air-flow reflux at mouthful;4th, block clearing put block up it is complicated for operation.
Summary of the invention
The purpose of this utility model is that: in view of the above-mentioned problems of the prior art, proposing that one kind can be anti-blocking, anti-tangle Around, guarantee the smooth conveying of material high-efficiency pneumatic conveying drawing-in device.
In order to reach the goals above, applicant analyzes and researches to prior art reason of problems, it is understood that: 1. dialling careless device using reversal means is welded in grass pulling shaft, disconnected branch seedling breaking and residual is easily rewinded and wound in the grass pulling shaft and reversal means of rotation Film;2. spout width is smaller, the smoothness that material is fallen into is influenced, dials careless device although being configured with, when material contains miscellaneous more, Spout also can the blocking of frame grass after working long hours;Material falls into the unilateral wind-force only welcome by front after pipeline, works as material When measuring larger, only unilateral stress is difficult rapidly to blow away material, and subsequent material is constantly fallen into, and duct bottom material then can rapid heap Product, easily leads to line clogging;3. air-flow can go out from spout reflux, can not be formed after duct bottom accumulates a small amount of material Negative pressure;4. after line clogging, can only by way of disassembly manual cleaning, pass through machine hand bridge operation, stop feeding, using sky Machine operates, improves throttle, the mode of increasing wind speed cannot exclude plugging fault (since blocking causes air-flow at spout Reflux, the speed of reflux can only be increased by improving wind speed).
On this basis, the pneumatic conveying drawing-in device basic technical scheme of the utility model is proposed are as follows:
Including blast pipe, the outlet of the blast pipe is fallen with left and right guide duct and centre respectively by shunt and regulation apparatus The input end of expects pipe is connected to, and the inside of the left and right guide duct passes through waffle slab respectively and is connected to the two sides of intermediate material blanking tube, institute The outlet end for stating intermediate material blanking tube is connected to feed pipe;
The shunt and regulation apparatus is made of the left and right wind deflector of reducer pipe and shunting tilt adjustable;
The inside of the left and right guide duct has arrange along its length at least two air outlets that waffle slab is housed, And arrival end to each air outlet forms independent guiding air duct;
The top of the intermediate material blanking tube has position spout corresponding with two sides air outlet respectively, each spout middle part Equipped with thumb wheel and front and rear is equipped with the triangular-section branching block of apex angle upward.
When work, the high speed and high pressure air-flow that blower generates is entered by blast pipe, and air-flow is divided into three tunnels by shunt and regulation apparatus Right guide duct, intermediate material blanking tube, left guide duct are imported, left and right guide duct interior air-flow is divided into multichannel via intermediate material blanking tube two Side enters intermediate material blanking tube, and three road air-flows converge, and the common mixtures of materials for pushing spout to fall is (pod, disconnected branch seedling breaking, residual Film, soil are miscellaneous), make its flow at high speed.Thumb wheel rotation disconnected branch seedling breaking, residual film are dialled in pipeline, all materials simultaneously by right side, The effect of the high pressure draught in left side, forward direction (intermediate material blanking tube air-flow) three directions, it is fast under the combined effect of airflow at three strands Speed pushes in feed pipe.Compared with traditional unilateral air-flow, the utility model significantly improves the carrying capacity of air-flow, thus thorough Bottom solves the problems, such as line clogging caused by instantaneous excessive materials.In addition, traditional spout is to generate enough negative pressure, gas is avoided Reflux is flowed, the effective width of each spout is all smaller, the smoothness that material is fallen into is influenced, and spout branching block, thumb wheel etc. close Smoothness has then been effectively ensured in the structure design of reason, and avoids reflux, has thoroughly cracked winding, has rewinded problem.
The utility model further improves, and air door plate is housed on the air outlet of the left and right guide duct.It therefore can be with Individually regulate and control the wind pressure and wind speed in each air duct on demand, to guarantee that air-flow applies Cross Wind Force to material heap bottom, accelerates material Cleaning, avoids line clogging.
The utility model further improves also:
The guiding air duct, which is independent, is respectively oriented to air duct.
The reducer pipe is in the bell mouth shape of latus rectum flaring.
There is the rotating handle axis of exposed rotating handle to be connected for one end and upper end of the wind deflector, the rotating handle and wind-guiding of the rotating handle axis The up-small and down-big inner conical drogue in C-shaped section is housed, the inner conical drogue is mounted on the external conical sleeve being fixed on reducer pipe between plate upper end The cone of matching is aerial.
The outlet air guide angle in the guiding air duct is less than 20 °.
The outlet air guide angle of each air duct guide plate successively decreases from front to back.
Three leaf thumb wheels, 40 ° of the carrier phase shift of adjacent thumb wheel are housed in the middle part of the spout.
The relief angle of the branching block is located at the preceding upper end of corresponding air outlet, and anterior angle arrives at the rear end of corresponding air outlet.
The height of the anterior angle of each branching block to air outlet bottom end is successively decreased from front to back.
In short, the utility model is ingenious in design, compact-sized, simple structure, assembling is convenient, cleaning is convenient, operation is smooth, Material suitable for the pneumatic conveying of most granule materials including peanut, especially suitable for mobile combining equipment Conveying.
Detailed description of the invention
The utility model will be further described below with reference to the accompanying drawings.
Fig. 1 is the schematic perspective view of the utility model one embodiment.
Fig. 2 is the flow division control device schematic perspective view of Fig. 1 embodiment.
Fig. 3 be Fig. 1 embodiment intermediate material blanking tube and left and right guide duct dimensional decomposition structure diagram.
Fig. 4 is the right guide duct schematic cross-sectional view of Fig. 1 embodiment.
Fig. 5 is the intermediate material blanking tube schematic cross-sectional view of Fig. 1 embodiment.
Specific embodiment
Embodiment one
The present embodiment is a kind of pneumatic conveying drawing-in device matched with full feeding peanut pickup combined harvester, basic Structure as shown in Figure 1: the blast pipe 1 of the external blower air outlet of air inlet outlet by shunt and regulation apparatus 2 respectively with it is left and right Guide duct 5,3 is connected to the input end of intermediate material blanking tube 4, and the inside of left and right guide duct 5,3 passes through waffle slab 15 and centre respectively The two sides of material blanking tube 4 are connected to (referring to Fig. 3), and the outlet end of intermediate material blanking tube 4 is connected to feed pipe 7.
The specific structure of shunt and regulation apparatus 2 is as shown in Fig. 2, by reducer pipe 8 and the left and right wind-guiding of shunting tilt adjustable Plate 9,10 is constituted, and wherein reducer pipe 8 is in the bell mouth shape of latus rectum flaring, and one end and upper end of wind deflector have the rotation of exposed rotating handle Arbor 13 is connected, and the up-small and down-big inner conical drogue 11 in C-shaped section, inner conical drogue are housed between the rotating handle and wind deflector upper end of rotating handle axis 13 11 to be mounted on the cone that the external conical sleeve 12 that is fixed on reducer pipe 8 matches aerial, " expansion set " structure is formed, by tightening fixed spiral shell Bolt, external conical sleeve 12 to inner conical drogue 11 apply axial clamping force, inside, the conical surface of external conical sleeve effect under, inner conical drogue clamp rotating handle axis 13, to be positioned after realizing the adjusting of wind deflector.
The specific structure of left and right guide duct 9,10 is as shown in Figure 3,4, and inside has evenly arranged three along its length Air outlet equipped with waffle slab 15, arrival end to each air outlet are isolated to form independent respectively guiding air duct;It is oriented to air duct Outlet air guide angle α is respectively less than 20 °, therefore the angle of emergence of air port air-flow is respectively less than 20 °;Air door plate 16 is inserted on each air outlet, it can Individually to regulate and control the wind pressure and wind speed in each air duct on demand.For the uniformity for guaranteeing air pressure and wind speed in each air duct, each air duct is led It is designed as successively decreasing from front to back to the outlet air guide angle α of plate.
The specific structure of intermediate material blanking tube 4 is as shown in Fig. 3,5, and both ends are respectively provided with flange 14, and top is with position point Three spouts not corresponding with two sides air outlet.Three leaf thumb wheels 6, the phase angle phase of adjacent thumb wheel 6 are housed in the middle part of each spout Poor 40 °, thumb wheel blade is conducive to material and is fallen in spout using 30 ° of hypsokinesis designs.The front and rear of each spout is equipped with top The triangular-section branching block 17 of angle upward, the apex angle of branching block 17 are 45-55 °, and relief angle is located at the preceding upper end of corresponding air outlet, Anterior angle then arrives at the rear end of corresponding air outlet, and the height H of the anterior angle of each branching block 17 to air outlet bottom end is from front to back with 10mm Tolerance is successively decreased.
In work, the high speed and high pressure air-flow that blower generates is entered in Pneumatic conveying pipeline by blast pipe 1, shunt and regulation apparatus Air-flow is divided into three tunnels by 2, is directed respectively into right guide duct 3, intermediate material blanking tube 4, left guide duct 5, the air-flow in right, left guide duct is then Further being divided into three tunnels, right, left side three air doors enter intermediate material blanking tube via intermediate material blanking tube.Right guide duct, centre It is common to push material high-speed flowing after material blanking tube, tri- road air-flow of left guide duct Nei converge.Peanut feeds combined harvester band entirely The mixtures of materials that is formed after peanut seedling vine is plucked fruit, cleaned in material operation (predominantly pod, disconnected branch seedling breaking, residual film, soil are miscellaneous) The spout that material curtain falls into intermediate material blanking tube 4 is formed under the shake effect of vibrating screen, these materials are in spout suction function It is lower to be immediately wicked into intermediate blanking pipeline, while the rotation of thumb wheel 6 dials in disconnected branch seedling breaking, residual film in pipeline.Material is led on the right side Under the collective effects of three sidewinds such as air hose, intermediate material blanking tube, left guide duct, pushed to rapidly in feed pipe 7.
Compared with prior art, the present embodiment has a characteristic that
1) pass through the corner of adjusting left and right wind deflector, thus it is possible to vary be assigned to right guide duct, intermediate material blanking tube, left guide duct Air force, to make shunt and regulation apparatus according to the feelings such as different peanut varieties, material water ratio, mixtures of materials accounting Condition adjusts according to actual demand and distributes each pipeline air volume, improves the utilization rate of air-flow;And by " expansion set " structure tune Section is convenient, and positioning is reliable.
2) material falls into the moment of spout, while the work of the high pressure draught by right side, left side, positive three directions With compared with the single positive draft effect of tradition, hence it is evident that the forced area for increasing material effectively increases the carrying energy of air-flow Power thoroughly solves line clogging caused by instantaneous excessive materials.
3) each duct outlet of left and right guide duct is located at the underface of three spouts of intermediate material blanking tube, guarantees every The air-flow in a air duct all acts in effective blanking region, improves air-flow utilization rate.Since the length in three air ducts is gradually passed Increase, for the uniformity for guaranteeing air pressure and wind speed in each air duct, the angle [alpha] of each air duct guide plate gradually successively decreases, is respectively less than 20 °, has Material is pushed to flow to front conducive to the air-flow that air outlet projects;The waffle slab of air outlet configuration was fed when spout moment When measuring material, material can be avoided to adverse current, blocking air duct inside air duct;And air door plate 16 is housed at each air outlet, it can The wind pressure and wind speed in each air duct are individually controlled, it is big according to different cultivars, material water ratio, mixtures of materials accounting damper Small (being realized by replacement air door plate), guarantees that air-flow applies Cross Wind Force to material heap bottom, accelerates the cleaning of material, further keep away The risk of line clogging is exempted from.
4) intermediate material blanking tube 4 uses jet current principle, and thumb wheel is configured at each spout, can during chimneying force feed It is generated at all spouts into negative pressure, it will be in the material intake line of vibrating screen discharge;Three spout bores in parallel are wide, Blanking range is wide, and all effective feed zones, any region can feedings between spout;Three points of spout configuration Stream block is triangle, and high pressure draught can be made to form " jet effect " at spout and generate negative pressure, directing material enters pipeline It is interior;The negative pressure at each spout is for the benefit of improved, the height H of three branching block bottoms is successively passed by arithmetic progression from front to back Subtract (tolerance 10mm), while branching block spacing is sequentially reduced (tolerance 20mm) by arithmetic progression.
5) thumb wheel is driven by chain drive and is rotated, and thumb wheel outer circle and spout minimum distance are greater than 30mm, guarantees impeller rotation Turn not breaking up pod, meanwhile, the rotation of thumb wheel facilitates the enhancing of spout negative pressure, boosting material is flowed into pipeline, clear Reason makes somebody a mere figurehead disconnected branch seedling breaking and residual film at spout, and conventional Shift Computation grass device is avoided to rotate residual film, the long seedling vine easily caused Winding, thoroughly cracks winding, rewinds problem.
6) when needing to clear up pipeline, thumb wheel and air door plate only need to be adjusted, pipeline can be realized from clear.

Claims (10)

1. a kind of pneumatic conveying drawing-in device, including blast pipe (1), it is characterised in that:
The outlet of the blast pipe by shunt and regulation apparatus (2) respectively with left and right guide duct (5,3) and centre material blanking tube (4) Input end connection, the inside of the left and right guide duct pass through respectively waffle slab (15) with centre material blanking tube two sides be connected to, institute The outlet end for stating intermediate material blanking tube is connected to feed pipe (7);
The shunt and regulation apparatus is made of the left and right wind deflector (9,10) of reducer pipe (8) and shunting tilt adjustable;
The inside of the left and right guide duct has arrange along its length at least two the air outlet of waffle slab is housed, and enters Mouth end to each air outlet forms independent guiding air duct;
The top of the intermediate material blanking tube has position spout corresponding with two sides air outlet respectively, is equipped in the middle part of each spout Thumb wheel (6) and front and rear are equipped with the triangular-section branching block (17) of apex angle upward.
2. pneumatic conveying drawing-in device according to claim 1, it is characterised in that: the air outlet of the left and right guide duct It is upper that air door plate (16) are housed.
3. pneumatic conveying drawing-in device according to claim 2, it is characterised in that: the guiding air duct is independent respectively It is oriented to air duct.
4. pneumatic conveying drawing-in device according to claim 3, it is characterised in that: the reducer pipe is in the loudspeaker of latus rectum flaring Mouth shape.
5. pneumatic conveying drawing-in device according to claim 1,2 or 3, it is characterised in that: one end of the wind deflector with There is the rotating handle axis of exposed rotating handle to be connected for upper end, upper equipped with C-shaped section between the rotating handle and wind deflector upper end of the rotating handle axis Small lower big inner conical drogue, it is aerial that the inner conical drogue is mounted on the cone that the external conical sleeve being fixed on reducer pipe matches.
6. pneumatic conveying drawing-in device according to claim 5, it is characterised in that: the outlet air guide angle in the guiding air duct Less than 20 °.
7. pneumatic conveying drawing-in device according to claim 6, it is characterised in that: the outlet air guide angle of each air duct guide plate Successively decrease from front to back.
8. pneumatic conveying drawing-in device according to claim 7, it is characterised in that: dialled in the middle part of the spout equipped with three leaves Wheel, 40 ° of the carrier phase shift of adjacent thumb wheel.
9. pneumatic conveying drawing-in device according to claim 8, it is characterised in that: the relief angle of the branching block is located at corresponding The preceding upper end of air outlet, and anterior angle arrives at the rear end of corresponding air outlet.
10. pneumatic conveying drawing-in device according to claim 9, it is characterised in that: the anterior angle of each branching block to air outlet The height of bottom end is successively decreased from front to back.
CN201820455622.7U 2018-04-03 2018-04-03 A kind of pneumatic conveying drawing-in device Active CN208278975U (en)

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CN201820455622.7U CN208278975U (en) 2018-04-03 2018-04-03 A kind of pneumatic conveying drawing-in device

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108483050A (en) * 2018-04-03 2018-09-04 农业部南京农业机械化研究所 A kind of Geldart-D particle drawing-in device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108483050A (en) * 2018-04-03 2018-09-04 农业部南京农业机械化研究所 A kind of Geldart-D particle drawing-in device
CN108483050B (en) * 2018-04-03 2023-09-22 农业部南京农业机械化研究所 Pneumatic conveying feeding device

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