CN107006219B - Tangent line water conservancy diversion formula gas cotton separator - Google Patents
Tangent line water conservancy diversion formula gas cotton separator Download PDFInfo
- Publication number
- CN107006219B CN107006219B CN201710338380.3A CN201710338380A CN107006219B CN 107006219 B CN107006219 B CN 107006219B CN 201710338380 A CN201710338380 A CN 201710338380A CN 107006219 B CN107006219 B CN 107006219B
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- cotton
- comb
- channel
- exhaust
- combs
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- 229920000742 Cotton Polymers 0.000 title claims abstract description 108
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title description 2
- 238000000926 separation method Methods 0.000 claims abstract description 48
- 210000001520 comb Anatomy 0.000 claims abstract description 18
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 2
- 230000007704 transition Effects 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 description 24
- 239000000203 mixture Substances 0.000 description 19
- 238000003306 harvesting Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 4
- 238000005192 partition Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D46/00—Picking of fruits, vegetables, hops, or the like; Devices for shaking trees or shrubs
- A01D46/08—Picking of fruits, vegetables, hops, or the like; Devices for shaking trees or shrubs of cotton
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to a tangential flow guide type air-cotton separation device, which comprises a support frame and a cotton conveying channel arranged on the support frame; the cotton conveying channel consists of an inlet channel, a gas-cotton separation channel and an outlet channel which are connected in sequence; the cotton conveying pipeline consists of a side plate, a bottom plate and at least three groups of guide and exhaust combs which are arranged at the top of the side plate and are sequentially connected, the guide and exhaust combs comprise comb plates fixedly connected with the side plate and a plurality of comb teeth fixed on the comb plates, and the comb plates of the guide and exhaust combs are closer to the inlet channel than the comb teeth of the guide and exhaust combs; all the diversion exhaust combs are positioned on different circumscribed directions of the same preset circular arc. The device ensures smooth movement of seed cotton while efficiently exhausting air flow, and realizes smooth transition between the cotton conveying pipeline and the airborne pretreatment device.
Description
Technical Field
The invention relates to a tangential flow type air-cotton separation device, and belongs to the technical field of agricultural machinery.
Background
Currently, cotton pickers can be divided into two basic types according to the picking objects: the selective harvest type and the total harvest type are adopted, the former is only used for harvesting mature seed cotton, the repeated harvest is often needed, the latter is used for harvesting mature seed cotton and immature seed cotton together, and a harvesting object is needed to have higher maturity.
The cotton picker is an agricultural field operation machine with wide application range, low price and high harvesting efficiency, can finish operations such as cotton harvesting, conveying, cotton boll recycling, impurity removal, collection and the like at one time, has high production efficiency, and is a cotton picker type with great development potential. The cotton picker mainly comprises a picking table, a conveying pipeline, a conveying fan, a gas-cotton separation device, a pretreatment impurity removal device, a cotton collecting box and other large parts. The seed cotton, the immature cotton boll, the branch, the boll shell, the broken leaves and the like are collected together in the collecting process of the cotton picker, and the cotton impurity mixture formed by the seed cotton, the immature cotton boll, the branch, the boll shell, the broken leaves and the like is conveyed to a impurity removing device for pretreatment through a cotton boll separation pneumatic cotton conveying pipeline under the action of the output airflow of a conveying fan. In order to improve the impurity removing effect, a gas-cotton separation device is generally added between a cotton boll separation pneumatic cotton conveying pipeline and an impurity removing device to serve as a transition device, so that air flow is separated from cotton impurity mixture.
Most of the existing air-cotton separation devices are mesh-type air-cotton separation devices, generally adopt a cuboid structure, and as shown in fig. 1, the air-cotton separation devices are composed of a net rack 1, a net plate 2 and a bottom frame 3, and can play a role in exhausting air flow. According to field experiments, a large amount of small impurities carried by air flow in the mesh type air-cotton separation device can block meshes, so that cotton impurity mixtures are stacked, seed cotton is closed after stacked by the mesh plates, and the air flow carrying the cotton impurity mixtures is directly poured into the pretreatment device, so that the impurity removal effect is reduced, and the pretreatment impurity removal device is easy to block.
The applicant analyzed the following for its cause: the existing mesh type gas-cotton separation conveying device is of a cuboid structure, and the adjacent two sides of the existing mesh type gas-cotton separation conveying device are all right angles, so that a mixture cannot move along the inner frame of the existing mesh type gas-cotton separation conveying device, namely the existing mesh type gas-cotton separation conveying device cannot move along the adjacent two sides of a mesh plate, accumulation is easy to form, and gas flow cannot deviate from. As shown in fig. 2, the opening a is a cotton conveying pipeline, the opening B is an inlet of a pretreatment impurity removing device, when materials enter the mesh type air-cotton separation conveying device from the cotton conveying pipeline of the opening a, tiny fragments, branches and leaves and the like are easy to block nearby meshes under the blocking of the mesh frame 1, so that firstly, a mixture is piled up on the surface C, under the action of air flow, the mixture is compacted continuously until the mixture cannot pass through the air flow, the air flow carries the mixture to be piled up and compacted on the surface D, the surfaces C, D are all air-closed, the air flow is poured into the opening B to enter the airborne pretreatment impurity removing device, part of the air flow which cannot enter the airborne pretreatment impurity removing device returns to the mesh type air-cotton separation conveying device to form vortex, part of the mixture which is conveyed subsequently directly enters the airborne pretreatment device under the action of the air flow, and part of the mixture spirals in a vortex area. When the mixture piled up on two sides of C, D is accumulated to a certain amount, the action of air flow is overcome, and the mixture falls into the zone B, so that the treatment capacity of the pretreatment device is instantaneously improved, the treatment effect is reduced, and the blockage is easily caused; when the cotton picker is stopped, a large amount of materials piled on C, D face lose the wind force effect, fall into the B district simultaneously, especially easily cause the jam of airborne pretreatment clear miscellaneous device.
Disclosure of Invention
The invention aims to solve the technical problems that: the defects of the technology are overcome, and the air-cotton separation device capable of avoiding blockage is provided, so that smooth transition between a cotton boll separation pneumatic cotton conveying pipeline and an airborne pretreatment device can be realized.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a tangential flow guide type cotton-air separation device comprises a support frame and a cotton conveying pipe arranged on the support frame; the cotton conveying pipe is composed of an inlet channel, a gas-cotton separation channel and an outlet channel which are connected in sequence; the air-cotton separation channel consists of a side plate, a bottom plate and at least three groups of diversion and exhaust combs which are arranged at the top of the side plate and are sequentially connected, and the whole air-cotton separation channel is arc-shaped; the guide exhaust comb comprises a comb plate fixedly connected with the side plate and a plurality of comb teeth fixed on the comb plate, and the comb plate of the guide exhaust comb is closer to the inlet channel than the comb teeth of the guide exhaust comb; all the diversion exhaust combs are positioned on different circumscribed directions of the same preset circular arc.
When the cotton boll separating and conveying device is used, the inlet channel is connected with a cotton boll separating and pneumatic cotton conveying pipeline of the collecting cotton picker, and the outlet channel is connected with a pretreatment impurity removing device of the collecting cotton picker, so that after a cotton impurity mixture collected by the collecting cotton picker enters the device through the air conveying flow of the conveying fan, the air flow in the cotton impurity mixture is discharged from the diversion exhaust comb, and the cotton impurity mixture is separated.
The invention adopts the diversion exhaust comb, the tail end is of an open structure, and the net plate structure of the net-type air-cotton separation conveying device in the prior art is different from that of the net plate structure of the net-type air-cotton separation conveying device, and no transverse partition exists, so that smooth material passing can be ensured, and small impurities such as broken leaves and the like can be discharged together while air flow is discharged. According to the invention, seed cotton can not be accumulated in the gas-cotton separation channel, so that the uniform material input of the pretreatment impurity removal device is ensured, the influence of wind power on the pretreatment impurity removal device is eliminated, and the guarantee is provided for the efficient operation of the pretreatment impurity removal device.
According to the invention, the whole air-cotton separation channel is arc-shaped, the diversion exhaust combs are sequentially connected and are positioned on different circumscribed directions of the same preset arc, and cotton hybrid can move along the inner frame of the air-cotton separation channel, so that accumulation can not be formed on the surface of the diversion exhaust comb, and vortex can not be generated in the air-cotton separation channel, and the air-cotton separation effect is ensured.
Because the mixture components entering the diversion type gas-cotton separation conveying device are complex, contain branches (which can be as long as 15 cm) and the like, and once the branches are blocked, the device is very easy to be blocked, so that the branches are blocked due to the structure that criss-cross does not exist in the movement path of the material, and the further improvement of the technical scheme is as follows: in the two adjacent exhaust combs, the tail ends of the comb teeth of the diversion exhaust comb which are closer to the inlet channel are propped against the comb teeth of the other diversion exhaust comb. Therefore, the comb plate only plays a role in fixing comb teeth and strengthening the strength of the comb teeth, and does not participate in conveying cotton mixture, so that the phenomenon of branch jamming is avoided.
In order to further avoid the accumulation of cotton hybrid on the gas-cotton separation device, the further improvement of the technical scheme is as follows: the inlet guide plate is fixedly connected with the inlet channel, one end of the inlet guide plate is propped against the top wall of the inlet channel, and the other end of the inlet guide plate is propped against the diversion exhaust comb closest to the inlet channel; the outlet guide plate is fixedly connected with the outlet channel, one end of the outlet guide plate is propped against the top wall of the outlet channel, and the other end of the outlet guide plate is propped against the diversion exhaust comb closest to the outlet channel.
Preferably, the lower end of the outlet guide plate is flush with the outlet of the outlet channel.
In order to further strengthen the strength of the flow-guiding exhaust comb, two sides of the comb teeth of each group of flow-guiding exhaust comb are respectively provided with a reinforcing plate consistent with the direction of the comb teeth, and the reinforcing plates are fixedly connected with the side plates and the comb plates.
Drawings
The invention is further described below with reference to the accompanying drawings.
Fig. 1 is a schematic view of one side of a conventional mesh-type air-cotton separation apparatus.
Fig. 2 is a schematic diagram of a conventional mesh-type air-cotton separator in which a pile is formed on a mesh surface.
Fig. 3 is a schematic structural view of an embodiment of the present invention.
FIG. 4 is a schematic view of a flow-guiding exhaust comb according to an embodiment of the present invention.
Reference numerals: the air-cotton separation device comprises a net rack 1, a net plate 2, a bottom frame 3, an air-cotton separation channel 4, an inlet guide plate 4-1, a diversion exhaust comb 4-2, a side plate 4-3, an outlet guide plate 4-4, a bottom plate 4-7, an inlet channel 5, an outlet channel 6, a reinforcing plate 11, comb teeth 12 and a comb plate 13.
Detailed Description
Examples
As shown in fig. 3, the tangential flow type air-cotton separation device of the embodiment comprises a supporting frame and a cotton conveying channel arranged on the supporting frame; the cotton conveying channel can be divided into an inlet channel 5, a gas-cotton separation channel 4 and an outlet channel 6, the inlet channel 4 and the outlet channel 6 are vertically arranged, the inlet channel 5 is connected with an outlet of a cotton boll separation pneumatic cotton conveying pipeline of the cotton picking system harvester, and the outlet channel 6 is connected with an inlet of an airborne pretreatment device of the cotton picking system harvester. Preferably, the inlet channel, the gas-cotton separation channel and the outlet channel can be integrally manufactured.
As shown in FIG. 3, the air-cotton separation channel 4 is composed of two side plates 4-3, a bottom plate 4-7 and three groups of flow-guiding and exhausting combs 4-2 which are arranged at the top of the side plates 4-3 and are sequentially connected, and the whole air-cotton separation channel is arc-shaped. As shown in fig. 3 and 4, the guide exhaust comb 4-2 comprises a comb plate 13 fixedly connected with the side plate 4-3 and a plurality of comb teeth 12 fixed on the comb plate 13, wherein two sides of the comb teeth 12 are respectively provided with a reinforcing plate 11 in the same direction as the comb teeth 12, the reinforcing plates 11 are fixedly connected with the side plate 4-3 and the comb plate 13, and the comb plate 13 of the guide exhaust comb is closer to the inlet channel 5 than the comb teeth 12; all the diversion exhaust combs 4-2 are positioned in different circumscribed directions of the same preset circular arc (see the circular arc shown by the dotted line in fig. 3).
In order to avoid the accumulation of cotton mixture on the gas-cotton separation channel, as shown in fig. 3, an inlet guide plate 4-1 fixedly connected with the side wall of the inlet channel and an outlet guide plate 4-4 fixedly connected with the side wall of the outlet channel are further arranged, and the inlet guide plate 4-1 and the outlet guide plate 4-4 are also positioned on the circumscribed line of the preset circular arc. One end of the inlet guide plate 4-1 is propped against the top wall of the inlet channel 5, and the other end of the inlet guide plate is propped against the diversion exhaust comb closest to the inlet channel 4-1; one end of the outlet guide plate 4-4 is propped against the top wall of the outlet channel, and the other end of the outlet guide plate is propped against the diversion exhaust comb closest to the outlet channel. Preferably, the lower end of the outlet guide plate 4-4 is flush with the outlet of the outlet channel 6.
When the embodiment works, air flow and cotton hybrid output from the cotton conveying pipeline enter the air-cotton separation device of the embodiment, the air flow and the cotton hybrid firstly reach the inlet guide plate 5 and are then guided to the guide exhaust comb 4-2, the air flow is separated from the guide exhaust comb gap and is exhausted after passing through the guide exhaust comb 4-2 which is arranged along a preset circular arc (serving as a guide arc) along a plurality of groups, and the cotton hybrid reaches the outlet guide plate 6 under the inertia effect and finally falls into the airborne pretreatment impurity removal device.
The present embodiment can also be modified as follows: 1) In the two adjacent diversion exhaust combs 4-2, the comb teeth tail end of the diversion exhaust comb which is closer to the inlet channel is propped against the comb teeth of the other diversion exhaust comb. Thus, the device of the invention has no transverse partition, and thus the blockage of the device is almost completely avoided.
2) The flow-guiding exhaust comb 4-2 is not limited to three groups, and more than three groups may be arranged on the basis of downsizing.
The present invention is not limited to the specific technical solutions described in the above embodiments, and other embodiments may be provided in addition to the above embodiments. All technical schemes formed by adopting equivalent substitution are the protection scope of the invention.
Claims (3)
1. A tangential flow guide type air-cotton separation device comprises a support frame and a cotton conveying channel arranged on the support frame; the method is characterized in that: the cotton conveying channel consists of an inlet channel, a gas-cotton separation channel and an outlet channel which are connected in sequence; the air-cotton separation channel consists of a side plate, a bottom plate and at least three groups of guide exhaust combs which are sequentially connected and arranged at the top of the side plate and are integrally arc-shaped, the guide exhaust combs comprise comb plates fixedly connected with the side plate and a plurality of comb teeth fixed on the comb plates, and the comb plates of the guide exhaust combs are closer to the inlet channel than the comb teeth of the guide exhaust combs;
all the diversion exhaust combs are positioned in different circumscribed directions of the same preset circular arc;
The two sides of the comb teeth of each group of flow-guiding exhaust comb are respectively provided with a reinforcing plate in the same direction as the comb teeth, and the reinforcing plates are fixedly connected with the side plates and the comb plates;
In the two adjacent diversion exhaust combs, the comb teeth tail end of the diversion exhaust comb which is closer to the inlet channel is propped against the comb teeth of the other diversion exhaust comb.
2. The tangential flow-guided gas-cotton separation device of claim 1, wherein: the inlet guide plate is fixedly connected with the inlet channel, one end of the inlet guide plate is propped against the top wall of the inlet channel, and the other end of the inlet guide plate is propped against the diversion exhaust comb closest to the inlet channel; the outlet guide plate is fixedly connected with the outlet channel, one end of the outlet guide plate is propped against the top wall of the outlet channel, and the other end of the outlet guide plate is propped against the diversion exhaust comb closest to the outlet channel.
3. The tangential flow-guided gas-cotton separation device of claim 2, wherein: the lower end of the outlet guide plate is flush with the outlet of the outlet channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710338380.3A CN107006219B (en) | 2017-05-15 | 2017-05-15 | Tangent line water conservancy diversion formula gas cotton separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710338380.3A CN107006219B (en) | 2017-05-15 | 2017-05-15 | Tangent line water conservancy diversion formula gas cotton separator |
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| Publication Number | Publication Date |
|---|---|
| CN107006219A CN107006219A (en) | 2017-08-04 |
| CN107006219B true CN107006219B (en) | 2024-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710338380.3A Active CN107006219B (en) | 2017-05-15 | 2017-05-15 | Tangent line water conservancy diversion formula gas cotton separator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107685029B (en) * | 2017-10-19 | 2023-07-28 | 农业部南京农业机械化研究所 | Uniform flow type seed cotton gas-impurity separation device |
| CN109673258B (en) * | 2019-01-25 | 2024-01-23 | 农业农村部南京农业机械化研究所 | Seed cotton conveying channel |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206728612U (en) * | 2017-05-15 | 2017-12-12 | 农业部南京农业机械化研究所 | A kind of tangent line flow-guiding type gas cotton separator |
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| EP1418258A1 (en) * | 2002-11-08 | 2004-05-12 | Maschinenfabrik Rieter Ag | Solid particles separator for fibre material |
| CN2627806Y (en) * | 2003-06-04 | 2004-07-28 | 新疆石河子柴油机厂 | Improved overhead pneumatic cotton picker and spraying multi-purpose machine |
| CN2670301Y (en) * | 2003-12-30 | 2005-01-12 | 中国石化上海石油化工股份有限公司 | Gas and cotton separater for pneumatic super-short fiber conveying and separating apparatus |
| CN106561160B (en) * | 2015-11-30 | 2018-09-11 | 周潘玉 | A kind of classification closed type cotton picker plucks head and cotton picker |
| CN205546572U (en) * | 2016-02-25 | 2016-09-07 | 浙江亚特电器有限公司 | Take impurity removal function's defeated cotton transition device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN206728612U (en) * | 2017-05-15 | 2017-12-12 | 农业部南京农业机械化研究所 | A kind of tangent line flow-guiding type gas cotton separator |
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