CN204810898U - Double -deck disc type covering device - Google Patents
Double -deck disc type covering device Download PDFInfo
- Publication number
- CN204810898U CN204810898U CN201520257288.0U CN201520257288U CN204810898U CN 204810898 U CN204810898 U CN 204810898U CN 201520257288 U CN201520257288 U CN 201520257288U CN 204810898 U CN204810898 U CN 204810898U
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- covering device
- double
- earthing
- disc type
- disc
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Abstract
The utility model discloses a double -deck disc type covering device, the partial disc by two sets of specifications difference of earthing dish is formed, and the branch maybe be 255mm's inboard disc and the outside disc that blade plane diameter is 320mm by blade plane diameter, connects through the double -screw bolt between the two -layer disc, and general center pin is connected with the frame and is a covering device wholly again. The utility model discloses can obviously reduce earthing in -process earthflow to the impact of seed, reduces the seed displacement. Test the analysis through soil box experiment and field test to utility model's double -deck disc type covering device to contrast with plain disk formula covering device effect. The experimental result shows that double -deck disc type covering device earthing in -process is less to the impact of seed, and seed displacement is less, and earthing thickness is comparatively unanimous, and the seeding homogeneity is high.
Description
Technical field
The utility model belongs to agricultural machinery technological field, relates to a kind of double-layer circular disc type covering device.
Background technology
Covering device is one of main working parts of precision planter, is connected with seeding unit by single articulated form, for the kind subcovering in kind of ditch is tight, and reaches the suitable and uniform object of earthing of earthing amount.The structure of covering device and kinematic parameter decide the service behaviour of covering device, not only affect earthing quality, and affect the actual seed level of seed and spacing in the rows change, and then affect the germination rate of after planting seed, emergence rate and plant field distributing homogeneity.The supporting covering device of current domestic conventional precision planter mostly is double-disk covering device, and its earthing amount is comparatively large, but impacts obviously seed simultaneously, causes seed spacing in the rows and seed level to change greatly, affects seeding quality and seeding accuracy.
Utility model content
In order to overcome the defect existed in prior art, the utility model provides a kind of double-layer circular disc type covering device, is that one obviously can reduce seed displacement variable in earthing process, improves the double-layer circular disc type covering device of seeding accuracy.By observing plain disk formula covering device, in conjunction with earthing operation mechanism, on the basis observing a large amount of field sowing operation, the series of problems such as poor to the seeding uniformity occurred in seeding process, seed level is inconsistent is summarized, in conjunction with earthing operation actual requirement, by changing the number of plies of earthing dish, the size of earthing dish, the arrangement, position relationship etc. of disc change earthing effect.Its technical scheme is as follows:
A kind of double-layer circular disc type covering device, earthing disc portion is made up of the disk that two groups of specifications are different, inboard disc and the cutting edge planar diameter of to be cutting edge planar diameter be respectively 255mm are the outboard disc of 320mm, by Stud connection between two-layer disk, then Universal centre axle to be connected with frame be a covering device entirety.
Preferably, described inner side earthing dish cutting edge planar diameter is 255mm, and plane residing for earthing dish is the sphere of radius 550mm, and outside earthing dish cutting edge planar diameter is 320mm, and plane residing for earthing dish is the sphere of diameter 550mm.
Preferably, the large earthing dish of diameter to be the little earthing dish of 255mm and diameter be 320mm is placed on the inner side and outer side of covering device respectively, by Stud connection, can realize interior outboard disc synchronous axial system.
Preferably, the distance between inside and outside two-layer disk is 35mm.
The beneficial effects of the utility model:
The utility model obviously can reduce the percussion of soil stream to seed in earthing process, reduces seed displacement, improves seeding accuracy; By gradation earthing, when can ensure earthing, seed can touch the higher soil of moisture content, reduces the mixing of dry wet soil, is conducive to seed sprouting.Carry out test analysis by soil box experiment and the double-layer circular disc type covering device of field trial to institute's utility model, and contrast with plain disk formula covering device effect.Experimental result shows in double-layer circular disc type covering device earthing process less to the impact of seed, and seed change in displacement is less, and thickness of earth covering is more consistent, and seeding uniformity is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of double-layer circular disc type covering device.
Embodiment
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is described in more detail.
Fig. 1 illustrates the structure of double-layer circular disc type covering device.In FIG, outside earthing dish 1 thickness is 5mm, and cutting edge planar diameter is 320mm, and cutting edge plane place spherical radius is 550mm; Inner side earthing dish 2 thickness is 5mm, and cutting edge planar diameter is 255mm, and cutting edge plane place spherical radius is 550mm; Covering device frame 3 is welded by band iron, and frame top transverse slat is drilled with the through hole that 4 diameters are φ 10mm, for installing earthing dish angle connection device; Subtended angle adjusting device 4 is connected to form by two bendings, is arranged on the both sides of frame respectively.
Outside earthing dish 1 passes through together with Stud connection with inner side earthing dish 2, and can realize synchronous axial system, two-layer earthing dish is connected with the axle sleeve on angle regulator 4 by central shaft, and angle regulator is bolted and is fixed in frame.
Soil bin test proves, when when inner side, earthing dish diameter is 255mm, outside earthing dish diameter is 320mm, earthing speed is 0.85m/s, covering device subtended angle is 50 °, it is 0.27mm that covering device touches the average displacement after soil to seed, substantially reduces seed displacement.
The above; be only the utility model preferably embodiment; protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses, the simple change of the technical scheme that can obtain apparently or equivalence are replaced and are all fallen in protection domain of the present utility model.
Claims (4)
1. a double-layer circular disc type covering device, it is characterized in that: earthing disc portion is made up of the disk that two groups of specifications are different, inboard disc and the cutting edge planar diameter of to be cutting edge planar diameter be respectively 255mm are the outboard disc of 320mm, by Stud connection between two-layer disk, then Universal centre axle to be connected with frame be a covering device entirety.
2. double-layer circular disc type covering device according to claim 1, it is characterized in that: described inner side earthing dish cutting edge planar diameter is 255mm, plane residing for earthing dish is the sphere of radius 550mm, and outside earthing dish cutting edge planar diameter is 320mm, and plane residing for earthing dish is the sphere of diameter 550mm.
3. double-layer circular disc type covering device according to claim 1, it is characterized in that: the large earthing dish of diameter to be the little earthing dish of 255mm and diameter be 320mm is placed on the inner side and outer side of covering device respectively, by Stud connection, interior outboard disc synchronous axial system can be realized.
4. double-layer circular disc type covering device according to claim 1, is characterized in that: the distance between inside and outside two-layer disk is 35mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520257288.0U CN204810898U (en) | 2015-04-24 | 2015-04-24 | Double -deck disc type covering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520257288.0U CN204810898U (en) | 2015-04-24 | 2015-04-24 | Double -deck disc type covering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204810898U true CN204810898U (en) | 2015-12-02 |
Family
ID=54668569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520257288.0U Expired - Fee Related CN204810898U (en) | 2015-04-24 | 2015-04-24 | Double -deck disc type covering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204810898U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104813777A (en) * | 2015-04-24 | 2015-08-05 | 吉林农业大学 | Two-layer disc type covering device and method |
| CN107896574A (en) * | 2017-12-27 | 2018-04-13 | 福建农林大学 | A kind of planting huge fungous grass machine touches native device and its application method |
-
2015
- 2015-04-24 CN CN201520257288.0U patent/CN204810898U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104813777A (en) * | 2015-04-24 | 2015-08-05 | 吉林农业大学 | Two-layer disc type covering device and method |
| CN107896574A (en) * | 2017-12-27 | 2018-04-13 | 福建农林大学 | A kind of planting huge fungous grass machine touches native device and its application method |
| CN107896574B (en) * | 2017-12-27 | 2023-10-20 | 福建农林大学 | Soil touching device of pennisetum sinese planter and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20160424 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |