CN2422802Y - Negative pressure air conversion distributor - Google Patents
Negative pressure air conversion distributor Download PDFInfo
- Publication number
- CN2422802Y CN2422802Y CN 00235079 CN00235079U CN2422802Y CN 2422802 Y CN2422802 Y CN 2422802Y CN 00235079 CN00235079 CN 00235079 CN 00235079 U CN00235079 U CN 00235079U CN 2422802 Y CN2422802 Y CN 2422802Y
- Authority
- CN
- China
- Prior art keywords
- negative pressure
- valve
- air
- operated direction
- control valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Catching Or Destruction (AREA)
Abstract
The utility model relates to a negative pressure air conversion distributor, belonging to the improvement of a negative pressure air sucking device of an air sucking seeding machine. The side face of an air collecting chamber shell of an air filter is connected with a negative pressure regulating valve, the inner part of which is provided with a control automatic valve and a hand operated direction valve, the automatic valve controls an air inlet of the end of a valve body used for communicating with the atmosphere, the hand operated direction valve controls a negative pressure channel and a main inlet communicating with the atmosphere of the negative regulating valve, and the valve body of the negative pressure regulating valve arranged between the automatic valve and the hand operated direction valve is provided with a negative pressure air channel which is connected with a negative pressure distributing chamber which is uniformly distributed with air distributing pipes through pipelines. The utility model cancels a negative pressure source of a centrifugal fan. The utility model has the advantages of simple structure of the complete machine, low cost, low failure rate, and reliable operation.
Description
The utility model belongs to the improvement of suction specision planting after plastic covered machine negative pressure soaking gas equipment, particularly negative pressure gas shift distributor.
Sowing is a cargo handling operation important in the farming process,, and all generally uses widely in agricultural production all over the world not only in China with planting with sowing machine.A large amount of labours has been saved in the extensive popularization of sower, improves work efficiency, has promoted the raising and the development of the level of agricultural productive forces greatly.Along with agrotechnical continuous progress, agricultural is had higher requirement to sower, arises at the historic moment for the needs that satisfy agricultural development as the suction specision sower of progressively promoting.This sower automaticity height can reach precision drilling, satisfies requirement of seeding.It is big that but it manufactures and designs difficulty, complex process, and the production cost height, its mating power will could be used at the tractor more than 22 kilowatts, needs to drive the high speed and high pressure centrifugal blower and produces the sowing needs that negative-pressure air-flow satisfies pneumatic seeder.And China uses the tractor quantity below 22 kilowatts quite big, so applying of suction specision sower is subjected to restriction.
The purpose of this utility model is to provide a kind of negative pressure aspiration conversion assignments device, breathing process in the tractor engine work can be carried out the suction specision sowing because of the direct conversion assignments of the air-breathing negative pressure that produces to seeder and uses.The negative pressure that thorough change suction specision sower is used must be produced the structure of negative pressure by the high speed and high pressure centrifugal blower, can cancel centrifugal blower, makes complete machine structure simple, and cost is low, and fault is few, no drive mechanism, and reliable operation, the scope of application is wide.
The utility model is achieved in that a kind of negative pressure gas shift distributor, by air cleaner, negative pressure control valve and negative pressure distributing chamber are formed, side at air cleaner collection chamber shell is connecting the negative pressure control valve by pipe joint, spring controlled automatic valve and hand-operated direction valve are being set in the negative pressure control valve, automatic valve is positioned at the outer distolateral of negative pressure control valve, automatic valve is being controlled the air inlet that valve end communicates with atmosphere, hand-operated direction valve is positioned at the opposite side of negative pressure control valve, the main import that hand-operated direction valve is being controlled the negative pressure gas passage of negative pressure control valve and communicated with atmosphere, offer negative pressure gas passage on the valve body of negative control valve between automatic valve and the hand-operated direction valve, negative pressure gas passage is connecting the negative pressure distributing chamber that is provided with uniform gas-distributing pipe by pipeline.
The air inlet pipe of the utility model air cleaner is connected with the tractor air cleaner, on the uniform gas-distributing pipe negative pressure appendix is installed respectively on the negative pressure distributing chamber, and the other end of negative pressure appendix is connected with the aspiration dibbler respectively.During work, each part is tightly connected in the airtight air-channel system.When tractor engine work is air-breathing, enter engine by the air of air cleaner in airtight gas circuit, use for engine operation.Make the interior negative pressure that forms of gas circuit of sealing simultaneously, air feed is inhaled sower and is carried out negative pressure aspiration seeding operation.When work, when the handle of hand-operated direction valve was horizontal, the main import that the ball valve of hand-operated direction valve will communicate with atmosphere was closed, and negative pressure channel is opened, and made work system be in aspiration sowing situation.Negative pressure in airtight air-channel system is too high, when influencing engine operation, the spool of the automatic valve of negative pressure control valve end is compressed control spring by suction function, automatic valve is opened, the import that valve end is communicated with atmosphere is opened, and negative pressure gas passage communicates with atmosphere, and air enters in the valve body from the import that communicates with atmosphere, vacuum in the airtight gas circuit of compensation balance makes it remain on engine and the required negative pressure value of pneumatic seeder operate as normal.In the time of in the negative pressure value in the airtight gas circuit is adjusted in the required negative pressure value scope of pneumatic seeder operate as normal, automatic valve is closed the atmosphere import automatically.Automatic valve in the negative pressure control valve is in the open and close situation at any time along with the height of the negative pressure value in the airtight air-channel system.When the hand-operated direction valve handle is in vertical position, the ball valve of reversal valve is closed negative pressure gas passage, sower quits work, the atmosphere master import of negative pressure control valve is opened, air enters the airtight gas circuit to the engine air feed from main import, make the engine operate as normal, tractor operation this moment unit is in and shifts or Ferry Status.The breathing process of the utility model during with engine operation converts to pneumatic seeder supplying negative voltage gas, to satisfy the pneumatic seeder need of work, thereby thoroughly changed the structure that negative pressure that air-breathing precision sower uses must be produced negative pressure by the high speed and high pressure centrifugal blower, cancelled centrifugal blower, make complete machine structure simple, low cost of manufacture, fault is few, no drive mechanism, reliable operation, easy to use, the suction specision sower that the middle-size and small-size tractor that can satisfy various models articulates different size carries out sowing work.The sower line number makes up arbitrarily in the 1-20 line range, and thoroughly having changed domestic and international existing suction specision sower must make negative pressure source with the high speed and high pressure centrifugal blower, the restricted and restricted situation of sowing line number of workover rig assembly cover power.
Fig. 1 is the structural representation of negative pressure gas shift distributor
Fig. 2 is the A-A sectional structure schematic diagram of Fig. 1 negative pressure control valve
Fig. 3 is a negative pressure control valve plan structure schematic diagram
Fig. 4 is the main TV structure schematic diagram of negative pressure distributing chamber
Fig. 5 is the plan structure schematic diagram of negative pressure distributing chamber
Fig. 6 is the B-B sectional structure schematic diagram of Fig. 4
Below in conjunction with accompanying drawing the utility model is further described, a kind of negative pressure gas shift distributor, by air cleaner 1, negative pressure control valve and negative pressure distributing chamber 11 are formed, as shown in Figure 1, the air inlet of tractor air cleaner 7 is communicated with the air inlet pipe 3 of air cleaner 1, the centre bore of collection chamber shell 6 bottoms and the bottom of air inlet pipe 3 weld together, being equipped with the bottom surface on the top of collection chamber shell 6 is the gas-flow deflector 5 on inclined-plane, the inner hole sleeve of gas-flow deflector 5 is contained on the outer circle wall of air inlet pipe 3, assembling dust pocket 4 on the cylindrical port of gas-flow deflector 5, air filter cover 2 passes through the bolt spiral-lock on dust pocket 4; Side at air cleaner collection chamber shell 6 is connecting the negative pressure control valve by pipe joint, as shown in Figure 2, in the negative pressure control valve, be provided with spring controlled automatic valve 9 and hand-operated direction valve 8, automatic valve 9 is positioned at the outer distolateral of negative pressure control valve, automatic valve 9 is slidingly matched for the centre bore of spring controlled sphere core 15 and guide post 16, the two ends of guide post 16 are fixed on negative pressure by nut and regulate in the valve housing 17, the sphere of spool 15 matches with the valve seat of negative pressure control valve inner end, automatic valve 9 is being controlled the import that valve body 17 ends communicate with atmosphere, hand-operated direction valve 8 is a manual ball valve, in the rotating shaft 20 of handle 19 controls, spherical valve core 18 is installed, offer one side closed at the middle part of spherical valve core 18, the open slot of three perforations, hand-operated direction valve 8 is positioned at the opposite side of negative pressure control valve, hand-operated direction valve 8 is being controlled the negative pressure gas passage 21 of negative pressure control valve and the main import 22 that communicates with atmosphere, on the valve body 17 of negative pressure control valve between automatic valve 9 and the hand-operated valve 8, offer negative pressure gas passage 21, as shown in Figure 1, negative pressure gas passage 21 is connecting the negative pressure distributing chamber 11 that is provided with uniform gas-distributing pipe 10 by pipeline, connecting a negative pressure air hose on each gas-distributing pipe 10 respectively, the other end of negative pressure air hose is connected with the aspiration dibbler, and the connecting plate 12 of welding is fastened on the mulch film machine on the suspension plate 14 by bolt on the appendix 13.
Claims (3)
1. negative pressure gas shift distributor, it is characterized in that by air cleaner (1), negative pressure control valve and negative pressure distributing chamber (11) are formed, side at air cleaner (1) collection chamber shell (6) is connecting the negative pressure control valve by pipe joint, spring controlled automatic valve (9) and hand-operated direction valve (8) are being set in the negative pressure control valve, automatic valve (9) is positioned at the outer distolateral of negative pressure control valve, automatic valve (9) is being controlled the air inlet that valve body (17) end communicates with atmosphere, hand-operated direction valve (8) is positioned at the opposite side of negative pressure control valve, hand-operated direction valve (8) is being controlled the negative pressure channel (21) of negative pressure control valve and the main import (22) that communicates with atmosphere, offer negative pressure gas passage (21) on the valve body (17) of negative control valve between automatic valve (9) and the hand-operated direction valve (8), negative pressure gas passage (21) is connecting the negative pressure distributing chamber (11) that is provided with uniform gas-distributing pipe (10) by pipeline.
2. according to the described negative pressure gas shift of claim distributor, it is characterized in that automatic valve (9) is slidingly matched to bar (16) with guiding for the centre bore of spring controlled sphere core (15), the two ends of guide post (16) are fixed on negative pressure by nut and regulate in the valve housing (17), and the sphere of spool (15) matches with the valve seat of negative pressure control valve inner end.
3. according to the described negative pressure gas shift of claim distributor, it is characterized in that hand-operated direction valve (8) is a manual ball valve, in the rotating shaft (20) of handle (19) control, spherical valve core (18) is installed, offer at the middle part of spherical valve core (18) one side closed, the open slot of three perforations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00235079 CN2422802Y (en) | 2000-05-15 | 2000-05-15 | Negative pressure air conversion distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00235079 CN2422802Y (en) | 2000-05-15 | 2000-05-15 | Negative pressure air conversion distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2422802Y true CN2422802Y (en) | 2001-03-14 |
Family
ID=33596981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00235079 Expired - Fee Related CN2422802Y (en) | 2000-05-15 | 2000-05-15 | Negative pressure air conversion distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2422802Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102714959A (en) * | 2011-03-30 | 2012-10-10 | 华中农业大学 | A pneumatic wheat precise seed-metering device |
| CN114710997A (en) * | 2022-04-21 | 2022-07-08 | 黑龙江省众为农机有限公司 | Negative pressure controller for mechanical variable-frequency steering engine agricultural fan |
| US11885424B2 (en) | 2020-03-16 | 2024-01-30 | Cnh Industrial Canada, Ltd. | Airflow equalizing system for distributing particulate material |
-
2000
- 2000-05-15 CN CN 00235079 patent/CN2422802Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102714959A (en) * | 2011-03-30 | 2012-10-10 | 华中农业大学 | A pneumatic wheat precise seed-metering device |
| CN102714959B (en) * | 2011-03-30 | 2015-11-25 | 华中农业大学 | A kind of pneumatic type Wheat Precision Metering Device |
| US11885424B2 (en) | 2020-03-16 | 2024-01-30 | Cnh Industrial Canada, Ltd. | Airflow equalizing system for distributing particulate material |
| CN114710997A (en) * | 2022-04-21 | 2022-07-08 | 黑龙江省众为农机有限公司 | Negative pressure controller for mechanical variable-frequency steering engine agricultural fan |
| CN114710997B (en) * | 2022-04-21 | 2024-01-26 | 黑龙江省众为农机有限公司 | Mechanical variable-frequency type negative pressure controller for steering engine agricultural fan |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203261689U (en) | Air-suction rotary drum type small-size-seed sowing device | |
| JP5237256B2 (en) | Low pressure spray device | |
| CN106922259A (en) | For the material distribution apparatus of farm machine | |
| CN201081892Y (en) | Gas intaking seeding device of seeding machine | |
| CN2422802Y (en) | Negative pressure air conversion distributor | |
| CN105850294B (en) | Intelligent seeder | |
| CN201911028U (en) | Seed sowing device of pneumatic type vegetable seeder | |
| CN2808838Y (en) | Automatic vacuum powder absorbing device | |
| CN107852909A (en) | Seeder | |
| CN104170564B (en) | Air-blowing is for the little granule feed mechanism for seed of dish suction planted | |
| CN106576527B (en) | One device multirow electrical control rice and kernel seed placing device | |
| CN206790945U (en) | The aspirated-air type tomato seedling feed drum of both-end air-breathing | |
| CN210671281U (en) | Pneumatic seeder | |
| CN213907439U (en) | Pneumatic seed disturbing type seed sowing device cover body | |
| CN209882543U (en) | Multi-fan fertilizer quantitative conveying assembly | |
| CN205611214U (en) | Intelligence seeder | |
| CN208446014U (en) | A kind of precise seeder for agricultural robot | |
| CN215912500U (en) | Seeding device | |
| CN207808026U (en) | Porcelain glazing machine | |
| CN207390483U (en) | A kind of cigarette filter charge bar conveying equipment automatic on-off device | |
| CN115299424B (en) | Pesticide spraying system for preventing and controlling agricultural diseases and insect pests | |
| CN105830593A (en) | Energy-saving type sowing device used for plug seedling | |
| CN206274739U (en) | Blast compensation device and the blower fan with blast compensation device | |
| CN2321545Y (en) | Electric powder-jetting gun | |
| US4842449A (en) | Pneumatic evacuator-filler for grain drill hopper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |