CN201813669U - Sealing device for air suction type seed taking device - Google Patents
Sealing device for air suction type seed taking device Download PDFInfo
- Publication number
- CN201813669U CN201813669U CN2009203110116U CN200920311011U CN201813669U CN 201813669 U CN201813669 U CN 201813669U CN 2009203110116 U CN2009203110116 U CN 2009203110116U CN 200920311011 U CN200920311011 U CN 200920311011U CN 201813669 U CN201813669 U CN 201813669U
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- Prior art keywords
- air suction
- bearing
- sealing
- negative
- negative pressure
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- Expired - Fee Related
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Abstract
The utility model relates to an agricultural sowing machine, in particular to an air suction type sealing device for an air suction type precision membrane-laying and sowing device. The air suction type sealing device comprises a negative-pressure air suction pipe 4, a sealing bearing 5, a bearing block 6 and a roller air tube spindle 7, the end of the negative-pressure air suction pipe 4 extends into the sealing bearing 5 and is connected with the bearing block 6 through an end cover 12 fixed on a tube, and the roller air tube spindle 7 extends into the sealing bearing 5 from the other end of the sealing bearing 5; and the end of the negative-pressure air suction pipe 4 and the roller air tube spindle 7 in the sealing bearing 5 are matched in a sliding way. The utility model has the advantages that the roller spindle (hollow) communicated with an air suction type seed taking device is matched with the negative-pressure air suction pipe in a sliding way in the sealing bearing, thus the sealing performance of connection positions of the negative-pressure pipe is greatly improved. At the same time, the sealing device has a simple structure and a low cost, and thus the sowing rate can be improved.
Description
Technical field
The utility model relates to agricultural seeding machine, particularly a kind of suction seal device that uses at driven sucking precise amount planting after plastic covered device.
Background technology
At present, built-in precise hole sowing cylinder promptly utilizes negative pressure to inhale kind of a principle, and the air-sucking type precision weighing seed implement is arranged at a kind of air-sucking type precision drill of bunch planting cylinder inside, and its technology reaches its maturity.The primary structure of this built-in precise hole sowing cylinder has coaxial with these three kinds of versions of fast structure, coaxial speed changing structure and disalignment speed changing structure.Can select the negative pressure ventilation pipe to stretch in the cylinder and be connected, and negative pressure suction tube is motionless with respect to cylinder, therefore, how to guarantee that the air tight at work or few gas leakage of negative pressure ventilation pipe is a difficult problem with negative pressure suction kind of a device by roller shaft.Negative regulation is to inhale kind of the basis of device works fine.
The utility model content
The purpose of this utility model is according to above-mentioned problems of the prior art, proposes a kind of air-sucking type seed-taking device sealing device, and this apparatus structure is simple, and sealing effectiveness is good.
The utility model purpose realizes being finished by following technical scheme:
The utility model comprises negative pressure suction tube 4, sealed bearing 5, bearing block 6, cylinder tracheae main shaft 7, the end of negative pressure suction tube 4 is stretched in the sealed bearing 5 and by the end cap 12 that is fixed on the pipe and is connected with bearing block 6, and cylinder tracheae main shaft 7 stretches into from the other end of bearing 5; Be arranged on the end and the cylinder tracheae main shaft 7 of the negative pressure suction tube 4 in the bearing 5, the two is slidingly matched; Be arranged on the end and the cylinder tracheae main shaft 7 of the negative pressure suction tube 4 in the bearing 5; Have two dish bearings 5 in the described bearing block 6 at least; Envelope gas end cap 12 is an one with negative pressure suction tube 4.
The utility model has the advantages that, the utility model adopts the drum spindle (hollow) and the frame mode of negative pressure suction tube by being slidingly matched in the bearing that communicates with the air-sucking type seed-taking device, make the sealing property of negative pressure line junction increase substantially, simultaneously simple in structure, with low cost, and then improve sowing efficient.
Description of drawings
Fig. 1 is to be structural representation during the utility model uses;
Embodiment
The utility model feature and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, but embodiment of the present utility model is not limited thereto:
As shown in Figure 1, the wherein label 1-12 in the accompanying drawing, expression respectively: 1-duckbilled bunch planting shell, 2-press mold wheel, 3-stopping-off piece, 4-negative pressure suction tube, 5-sealed bearing, 6-bearing block, 7-cylinder tracheae main shaft, 8-duck mouth, defeated kind of the box of 9-, 10-kind case, 11-air-sucking type seed-taking device, 12-envelope gas end cap.
As shown in drawings, the utility model comprises negative pressure suction tube 4, sealed bearing 5, bearing block 6, cylinder tracheae main shaft 7, the end of negative pressure suction tube 4 is stretched in the sealed bearing 5 and by the end cap 12 that is fixed on the pipe and is connected with bearing block 6, and cylinder tracheae main shaft 7 stretches into from the other end of bearing 5; Be arranged on the end and the cylinder tracheae main shaft 7 of the negative pressure suction tube 4 in the bearing 5, the two preferably is slidingly matched, and helps sealing so more, and certainly, the two also can adopt non-contacting mode; Two dish sealed bearings 5 are arranged in the described bearing block 6, can also increase as required, like this with respect to adopting a dish sealed bearing can increase extension fixture life-span stability while; Envelope gas end cap 12 is an one with negative pressure suction tube 4, and its implication is to adopt the method for direct cast or welding to make the end cap 12 and the junction of negative pressure suction tube not have the slit, can prevent gas leakage.Stopping-off piece 3 is fixed on the press mold wheel 2, during the utility model work, draw as hitch frame by negative pressure suction tube 4, duckbilled bunch planting shell 1 or title drum segment, press mold wheel 2 contacts with ground, roll on the ground and move forward, the extraneous negative pressure suction tube 4 that passes through is ventilated to air-sucking type seed-taking device 11 with cylinder tracheae main shaft 7, make the air-sucking type seed-taking device produce negative pressure, seed in kind of the case 10 accurately is separated into a seed, seed rotates to the terminal of holding one's breath of air-sucking type seeder along with seed absorbing plate, gravity by seed drops in defeated kind of the box 9, enters duck mouth 8 and buries, and finishes the sowing process.
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.And the utility model is applicable to the negative inspiratory pressure part of the driven sucking precise amount on-demand device of other type.
Claims (4)
1. air-sucking type seed-taking device sealing device, it is characterized in that, comprise negative pressure suction tube (4), sealed bearing (5), bearing block (6), cylinder tracheae main shaft (7), the end of negative pressure suction tube (4) is stretched in the sealed bearing (5) and by the end cap (12) that is fixed on the pipe and is connected with bearing block (6), and cylinder tracheae main shaft (7) stretches into from the other end of bearing (5).
2. air-sucking type seed-taking device sealing device according to claim 1 is characterized in that, is arranged on the end and the cylinder tracheae main shaft (7) of the negative pressure suction tube (4) in the sealed bearing (5), and the two is slidingly matched.
3. air-sucking type seed-taking device sealing device according to claim 1 is characterized in that, has two dish sealed bearings (5) in the described bearing block (6) at least.
4. air-sucking type seed-taking device sealing device according to claim 1 is characterized in that, end cap (12) is an one with negative pressure suction tube (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203110116U CN201813669U (en) | 2009-09-22 | 2009-09-22 | Sealing device for air suction type seed taking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203110116U CN201813669U (en) | 2009-09-22 | 2009-09-22 | Sealing device for air suction type seed taking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201813669U true CN201813669U (en) | 2011-05-04 |
Family
ID=43911638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203110116U Expired - Fee Related CN201813669U (en) | 2009-09-22 | 2009-09-22 | Sealing device for air suction type seed taking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201813669U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322527A (en) * | 2011-09-06 | 2012-01-18 | 东南大学 | Gas sealing device for high-speed rotating machine |
| CN104737676A (en) * | 2015-04-23 | 2015-07-01 | 北屯金璞机械制造有限公司 | Row spacing-adjustable air-suction precision seeding device |
-
2009
- 2009-09-22 CN CN2009203110116U patent/CN201813669U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322527A (en) * | 2011-09-06 | 2012-01-18 | 东南大学 | Gas sealing device for high-speed rotating machine |
| CN104737676A (en) * | 2015-04-23 | 2015-07-01 | 北屯金璞机械制造有限公司 | Row spacing-adjustable air-suction precision seeding device |
| CN104737676B (en) * | 2015-04-23 | 2016-10-05 | 北屯金璞机械制造有限公司 | A kind of regulatable fertilizer applicator air-suction precision sowing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Bayannaoer Futian Machinery Co., Ltd. Assignor: Chen Ying Contract record no.: 2013320010161 Denomination of utility model: Sealing device for air suction type seed taking device Granted publication date: 20110504 License type: Exclusive License Record date: 20130930 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20150922 |
|
| EXPY | Termination of patent right or utility model |