CN107295831B - Hole opening device of seeder - Google Patents

Hole opening device of seeder Download PDF

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Publication number
CN107295831B
CN107295831B CN201710507080.3A CN201710507080A CN107295831B CN 107295831 B CN107295831 B CN 107295831B CN 201710507080 A CN201710507080 A CN 201710507080A CN 107295831 B CN107295831 B CN 107295831B
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double
ball bearing
rack
bearing
rectangular pyramid
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CN107295831A (en
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李丽霞
陈星智
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Kunming University of Science and Technology
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Kunming University of Science and Technology
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C5/00—Making or covering furrows or holes for sowing, planting or manuring
    • A01C5/04—Machines for making or covering holes for sowing or planting

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  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Soil Working Implements (AREA)

Abstract

The invention relates to a hole opening device of a seeder, and belongs to the technical field of agricultural machinery. The invention comprises a shaft, a chain wheel, a box body, a rectangular pyramid and a ball bearing
Figure 100004_DEST_PATH_IMAGE002
Incomplete toothGear and ball bearing
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Ball bearing
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Double-sided rack and ball bearing
Figure 100004_DEST_PATH_IMAGE008
(ii) a The device adopts an incomplete gear and a bilateral rack for meshing transmission, converts the circular motion of the incomplete gear into the up-and-down reciprocating motion of the rack, and realizes the opening of the cavity by depending on a rectangular pyramid at the bottom. The invention can solve the defects that the prior duckbill type acupoint opening device blocks up and blocks soil, has high requirement on working environment and can only work singly. The hole forming device has the advantages of good hole forming effect, high hole depth consistency, high hole opening reliability, reasonable structural design, suitability for various soil environments, high working efficiency, capability of simultaneously working a plurality of hole opening devices side by side, suitability for large-scale farmland operation and the like.

Description

Hole opening device of seeder
Technical Field
The invention relates to a hole opening device of a seeder, and belongs to the technical field of agricultural machinery.
Background
Along with the development of modern agriculture, the agricultural seeder of China has been used quite extensively, seeding machinery has taken an important position on agricultural machinery, the hill planting is widely used as a high-yield seeding mode, but the dibbling device of direct seeding agricultural seeder adopts duckbilled formula dibbling ware more, to topography, soil viscosity, cave depth requirement higher, the reliable operation degree is low, can not effectual be suitable for complicated topography, soil, the degree of difficulty is adjusted to the cave depth, it also causes easily to miss to sow and rebroadcast to open the cave and sow simultaneously, seeding efficiency is low. The development of modern agriculture leads the farmland area to be continuously increased, the personnel engaged in agricultural operation to be continuously reduced, and higher requirements are put forward in the aspects of farming time rush and precision seeding. Therefore, a hole opener with high efficiency, strong adaptability and good hole opening effect is needed for sowing and opening holes.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the invention provides a hole opening device of a seeding machine, which is used for solving the problems of low working efficiency, low working stability, high requirement on environment and difficult adjustment of hole opening depth of the existing hole opening device of the seeding machine and the defects that the existing duckbill hole opening device blocks up soil, has high requirement on working environment and can only work singly.
The technical scheme of the invention is as follows: a hole opening device of a seeder comprises a shaft 2, a chain wheel 8, a box body 10, a rectangular pyramid 11 and a ball bearing
Figure 100002_DEST_PATH_IMAGE002
13. Incomplete gear 14, ball bearing
Figure 100002_DEST_PATH_IMAGE004
15. Ball bearing
Figure 100002_DEST_PATH_IMAGE006
17. Bilateral rack 18, ball bearing
Figure 100002_DEST_PATH_IMAGE008
19；
The incomplete gear 14 is meshed with the double-sided rack 18, when the incomplete gear 14 is meshed with one side of the double-sided rack 18, the whole incomplete gear 14 can move upwards or downwards, and when the incomplete gear 14 is meshed with the other side of the double-sided rack 18, the incomplete gear 14 can move in the direction opposite to the last movement direction;
the incomplete toothed gear 14 and the chain wheel 8 are respectively arranged at two ends of the shaft 2, when the chain wheel 8 rotates, the shaft 2 is driven to rotate, and the shaft 2 drives the incomplete toothed gear 14 to rotate;
the bilateral rack 18 is made into an internal gear, the external part is smooth, the whole body is in a closed rectangular shape, and two side edges of the bilateral rack 18 and the ball bearings
Figure 494316DEST_PATH_IMAGE002
Figure 494316DEST_PATH_IMAGE002
13. Ball bearing
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15. Ball bearing
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17. Ball bearing
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19 to make the bilateral rack 18 move up and down smoothly; incomplete toothThe gear 14 and the bilateral rack 18 are both arranged in the box body 10, the lower end of the bilateral rack 18 extends out of the rectangular pyramid 11, and the bilateral rack 18 can drive the rectangular pyramid 11 to continuously reciprocate linearly up and down.
A mudguard 12 extends downwards from the bottom of the box body 10, and a double-layer spring piece is arranged at the lower part of the mudguard 12
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20. Mud scraper
Figure 29202DEST_PATH_IMAGE002
21. Mud scraper
Figure 266149DEST_PATH_IMAGE004
Figure 266149DEST_PATH_IMAGE004
22. Double-layer spring piece
Figure 70157DEST_PATH_IMAGE004
Figure 70157DEST_PATH_IMAGE004
23, a mud scraping device of a rectangular pyramid 11; double-layer spring piece
Figure 894018DEST_PATH_IMAGE002
Figure 894018DEST_PATH_IMAGE002
20 and a scraper
Figure 441674DEST_PATH_IMAGE002
Figure 441674DEST_PATH_IMAGE002
21 cooperating, double-layer spring leaf
Figure 533127DEST_PATH_IMAGE004
Figure 533127DEST_PATH_IMAGE004
23 and a mud scraper
Figure 508036DEST_PATH_IMAGE004
Figure 508036DEST_PATH_IMAGE004
22, the double-layer spring leaf is matched to work in the process that the rectangular pyramid 11 moves downwards to the hole opening position
Figure 317730DEST_PATH_IMAGE002
Figure 317730DEST_PATH_IMAGE002
20. Double-layer spring piece
Figure 669076DEST_PATH_IMAGE004
Figure 669076DEST_PATH_IMAGE004
23 scraper for mud
Figure 287140DEST_PATH_IMAGE002
Figure 287140DEST_PATH_IMAGE002
21. Mud scraper
Figure 823163DEST_PATH_IMAGE004
Figure 823163DEST_PATH_IMAGE004
22 are continuously compressed, and the double-layer spring piece is arranged in the process that the rectangular pyramid 11 completes the hole opening and upward movement
Figure 729939DEST_PATH_IMAGE002
Figure 729939DEST_PATH_IMAGE002
20. Double-layer spring piece
Figure 242567DEST_PATH_IMAGE004
Figure 242567DEST_PATH_IMAGE004
23 outwards-bouncing mud scraping plate
Figure 183978DEST_PATH_IMAGE002
Figure 183978DEST_PATH_IMAGE002
21. Mud scraper
Figure 625324DEST_PATH_IMAGE004
Figure 625324DEST_PATH_IMAGE004
22, making the mud scraping plate
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Figure 19396DEST_PATH_IMAGE002
21. Mud scraper
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Figure 571600DEST_PATH_IMAGE004
22 scrape off the mud adhering to the upper surface of the rectangular pyramid 11.
Four through holes are symmetrically formed in the box body 10 from front to back so as to facilitate the installation of the ball bearings
Figure 367518DEST_PATH_IMAGE002
Figure 367518DEST_PATH_IMAGE002
13. Ball bearing
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15. Ball bearing
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17. Ball bearing
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19 shaft and bearing cap required for installation
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1. Bearing cap
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Figure 355327DEST_PATH_IMAGE004
3. Bearing cap
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Figure 848626DEST_PATH_IMAGE006
7. Bearing cap
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Figure 883578DEST_PATH_IMAGE008
9 and bearing seat
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Figure 513142DEST_PATH_IMAGE002
24. Bearing seat
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Figure 608137DEST_PATH_IMAGE004
25. Bearing seat
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Figure 588732DEST_PATH_IMAGE006
26. Bearing seat
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Figure 896216DEST_PATH_IMAGE008
27。
The top end of the bilateral rack 18 is provided with a limit baffle 5, the bilateral rack 18 is connected with the limit baffle 5 through a connecting rod 16, and a rubber pad is pasted at the position where the limit baffle 5 contacts with the box body 10
Figure 144401DEST_PATH_IMAGE002
4. Rubber pad
Figure 100002_DEST_PATH_IMAGE010
Figure 100002_DEST_PATH_IMAGE010
6。
The invention has the beneficial effects that: the hole opening device is reasonable in structural design and low in working energy consumption, a plurality of hole opening devices of the seeding machine can be driven by a single shaft, a plurality of holes can be simultaneously operated side by side, the hole opening device is suitable for large-scale farmland operation, and the operation efficiency is high. The mechanism has reliable transmission, good hole forming effect, high hole depth consistency, high hole opening reliability, suitability for various soil environments, high working efficiency, farming time rush, hole sowing planting operation for various crops and the like.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a rear view of the present invention;
FIG. 3 is a front view of the present invention;
FIG. 4 is a right side view of the present invention;
fig. 5 is a schematic structural view of the mud scraping device of the invention.
The respective reference numerals in FIGS. 1 to 5: 1-bearing cap
Figure 3773DEST_PATH_IMAGE002
2-shaft 3-bearing cap
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4-rubber pad
Figure 848418DEST_PATH_IMAGE002
5-limit baffle and 6-rubber pad
Figure 327941DEST_PATH_IMAGE004
7-bearing cap
Figure 889372DEST_PATH_IMAGE006
8-sprocket, 9-bearing cap
Figure 251084DEST_PATH_IMAGE008
10-box body, 11-rectangular pyramid, 12-mudguard and 13-ball bearing
Figure 165950DEST_PATH_IMAGE002
14-incomplete-tooth gear, 15-ball bearing
Figure 719553DEST_PATH_IMAGE004
16-connecting rod, 17-ball bearing
Figure 451886DEST_PATH_IMAGE006
18-double-sided rack, 19-ball bearing
Figure 504156DEST_PATH_IMAGE008
20-double layer spring leaf
Figure 845882DEST_PATH_IMAGE002
21-mud scraper
Figure 486948DEST_PATH_IMAGE002
22-mud scraper
Figure 891647DEST_PATH_IMAGE004
23-double layer spring leaf
Figure 431212DEST_PATH_IMAGE004
24-bearing seat
Figure 78094DEST_PATH_IMAGE002
25-bearing seat
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26-bearing seat
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27-bearing seat
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。
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Example 1: as shown in figures 1-5, a hole opening device of a seeding machine comprises a bearing cover
Figure 827034DEST_PATH_IMAGE002
1. Shaft 2, bearing cap
Figure 678578DEST_PATH_IMAGE004
Figure 678578DEST_PATH_IMAGE004
3. Rubber pad
Figure 798980DEST_PATH_IMAGE002
Figure 798980DEST_PATH_IMAGE002
4. Limiting baffle 5 and rubber pad
Figure 437772DEST_PATH_IMAGE004
Figure 437772DEST_PATH_IMAGE004
6. Bearing cap
Figure 301823DEST_PATH_IMAGE006
Figure 301823DEST_PATH_IMAGE006
7. Sprocket 8, bearing cap
Figure 444091DEST_PATH_IMAGE008
Figure 444091DEST_PATH_IMAGE008
9. Case 10, rectangular pyramid 11, fender 12, ball bearing
Figure 975DEST_PATH_IMAGE002
13. Incomplete gear 14, ball bearing
Figure 861483DEST_PATH_IMAGE004
15. Connecting rod 16, ball bearing
Figure 263646DEST_PATH_IMAGE006
17. Bilateral rack 18, ball bearing
Figure 198104DEST_PATH_IMAGE008
19. Double-layer spring piece
Figure 752319DEST_PATH_IMAGE002
Figure 752319DEST_PATH_IMAGE002
20. Mud scraper
Figure 506649DEST_PATH_IMAGE002
21. Mud scraper
Figure 102715DEST_PATH_IMAGE004
Figure 102715DEST_PATH_IMAGE004
22. Double-layer spring piece
Figure 94942DEST_PATH_IMAGE004
Figure 94942DEST_PATH_IMAGE004
23. Bearing seat
Figure 852682DEST_PATH_IMAGE002
Figure 852682DEST_PATH_IMAGE002
24. Bearing seat
Figure 563150DEST_PATH_IMAGE004
Figure 563150DEST_PATH_IMAGE004
25. Bearing seat
Figure 697328DEST_PATH_IMAGE006
Figure 697328DEST_PATH_IMAGE006
26. Bearing seat
Figure 544061DEST_PATH_IMAGE008
Figure 544061DEST_PATH_IMAGE008
27；
The incomplete gear 14 is meshed with the double-sided rack 18, when the incomplete gear 14 is meshed with one side of the double-sided rack 18, the whole incomplete gear 14 can move upwards or downwards, and when the incomplete gear 14 is meshed with the other side of the double-sided rack 18, the incomplete gear 14 can move in the direction opposite to the last movement direction; taking the clockwise rotation of the incomplete gear 14 as an example, when the incomplete gear 14 is in meshing transmission with the left side of the bilateral rack 18, the bilateral rack 18 moves upwards, when the incomplete gear 14 is in meshing transmission with the right side of the bilateral rack 18, the bilateral rack 18 moves downwards to drive the rectangular pyramid 11 to open the cavity downwards, and when the incomplete gear 14 is in meshing transmission with the left side of the bilateral rack 18 again, the bilateral rack 18 moves upwards to drive the rectangular pyramid 11 to move upwards, so that a cavity opening operation cycle is completed.
The incomplete toothed gear 14 and the chain wheel 8 are respectively arranged at two ends of the shaft 2, when the chain wheel 8 rotates, the shaft 2 is driven to rotate, and the shaft 2 drives the incomplete toothed gear 14 to rotate; the circular rotation of the partial tooth gear 14 is converted into the reciprocating linear motion of the double-sided rack 18 through the partial tooth meshing transmission. The opening speed can be adjusted by adjusting the rotation speed of the incomplete tooth gear 14.
The bilateral rack 18 is made into an internal gear, the external part is smooth, the whole body is in a closed rectangular shape, and two side edges of the bilateral rack 18 and the ball bearings
Figure 239747DEST_PATH_IMAGE002
Figure 239747DEST_PATH_IMAGE002
13. Ball bearing
Figure 171931DEST_PATH_IMAGE004
Figure 171931DEST_PATH_IMAGE004
15. Ball bearing
Figure 109800DEST_PATH_IMAGE006
Figure 109800DEST_PATH_IMAGE006
17. Ball bearing
Figure 76619DEST_PATH_IMAGE008
Figure 76619DEST_PATH_IMAGE008
19 to make the bilateral rack 18 move up and down smoothly; the bearing and the contact part of the bilateral rack 18 need to be lubricated by grease. The incomplete gear 14 and the double-sided rack 18 are both arranged in the box body 10, and one lower end of the double-sided rack 18 extends outThe double-side rack 18 of the rectangular pyramid 11 can drive the rectangular pyramid 11 to continuously reciprocate linearly up and down, and the rectangular pyramid 11 keeps a certain working length.
In a preferred embodiment of the present invention, a fender 12 is extended downward from the bottom of the housing 10 by a predetermined distance, and a double-layer leaf spring is provided at the lower part of the fender 12
Figure 176162DEST_PATH_IMAGE002
20. Mud scraper
Figure 595642DEST_PATH_IMAGE002
Figure 595642DEST_PATH_IMAGE002
21. Mud scraper
Figure 71622DEST_PATH_IMAGE004
Figure 71622DEST_PATH_IMAGE004
22. Double-layer spring piece
Figure 892948DEST_PATH_IMAGE004
Figure 892948DEST_PATH_IMAGE004
23, a mud scraping device of a rectangular pyramid 11; the mud guard 12 can block the soil in front, and the soil will not stick on the rectangular pyramid 11, the double-layer spring leaf
Figure 661927DEST_PATH_IMAGE002
Figure 661927DEST_PATH_IMAGE002
20 and a scraper
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Figure 568703DEST_PATH_IMAGE002
21 cooperating, double-layer spring leaf
Figure 848375DEST_PATH_IMAGE004
Figure 848375DEST_PATH_IMAGE004
23 and a mud scraper
Figure 524207DEST_PATH_IMAGE004
Figure 524207DEST_PATH_IMAGE004
22, the double-layer spring leaf is matched to work in the process that the rectangular pyramid 11 moves downwards to the hole opening position
Figure 231132DEST_PATH_IMAGE002
Figure 231132DEST_PATH_IMAGE002
20. Double-layer spring piece
Figure 421942DEST_PATH_IMAGE004
Figure 421942DEST_PATH_IMAGE004
23 scraper for mud
Figure 115091DEST_PATH_IMAGE002
Figure 115091DEST_PATH_IMAGE002
21. Mud scraper
Figure 35643DEST_PATH_IMAGE004
Figure 35643DEST_PATH_IMAGE004
22 are continuously compressed, and the double-layer spring piece is arranged in the process that the rectangular pyramid 11 completes the hole opening and upward movement
Figure 788835DEST_PATH_IMAGE002
Figure 788835DEST_PATH_IMAGE002
20. Double-layer spring piece
Figure 30723DEST_PATH_IMAGE004
Figure 30723DEST_PATH_IMAGE004
23 outwards-bouncing mud scraping plate
Figure 527563DEST_PATH_IMAGE002
Figure 527563DEST_PATH_IMAGE002
21. Mud scraper
Figure 302621DEST_PATH_IMAGE004
Figure 302621DEST_PATH_IMAGE004
22, making the mud scraping plate
Figure 226715DEST_PATH_IMAGE002
Figure 226715DEST_PATH_IMAGE002
21. Mud scraper
Figure 720013DEST_PATH_IMAGE004
Figure 720013DEST_PATH_IMAGE004
22 scraping off the mud attached to the upper surface of the rectangular pyramid 11 to complete the mud scraping.
As a preferable scheme of the invention, four through holes are symmetrically formed in the box body 10 from front to back so as to install ball bearings
Figure 82861DEST_PATH_IMAGE002
Figure 82861DEST_PATH_IMAGE002
13. Ball bearing
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Figure 587792DEST_PATH_IMAGE004
15. Ball bearing
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Figure 329394DEST_PATH_IMAGE006
17. Ball bearing
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Figure 919775DEST_PATH_IMAGE008
19 shaft and bearing cap required for installation
Figure 883052DEST_PATH_IMAGE002
1. Bearing cap
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Figure 304806DEST_PATH_IMAGE004
3. Bearing cap
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Figure 570702DEST_PATH_IMAGE006
7. Bearing cap
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Figure 773013DEST_PATH_IMAGE008
9 and bearing seat
Figure 149768DEST_PATH_IMAGE002
Figure 149768DEST_PATH_IMAGE002
24. Bearing seat
Figure 753925DEST_PATH_IMAGE004
Figure 753925DEST_PATH_IMAGE004
25. Bearing seat
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Figure 190722DEST_PATH_IMAGE006
26. Bearing seat
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Figure 381794DEST_PATH_IMAGE008
27。
As a preferable scheme of the invention, the top end of the bilateral rack 18 is provided with a limit baffle 5, the bilateral rack 18 is connected with the limit baffle 5 through a connecting rod 16, and a rubber pad is adhered to the position where the limit baffle 5 is contacted with the box body 10
Figure 296661DEST_PATH_IMAGE002
4. Rubber pad
Figure 20903DEST_PATH_IMAGE010
Figure 20903DEST_PATH_IMAGE010
6, can cushion and inhale the shake, reduce the wearing and tearing to the device, avoid the rigidity impact in the working process.
As shown in fig. 1 to 5, the incomplete gear 14 according to the present invention may not be only three teeth as shown in the drawings, and the number of teeth may be determined according to actual production needs.
As shown in fig. 1-5, the bearing seat
Figure 628602DEST_PATH_IMAGE002
Figure 628602DEST_PATH_IMAGE002
24. Bearing seat
Figure 539926DEST_PATH_IMAGE004
Figure 539926DEST_PATH_IMAGE004
25 and a bearing seat
Figure 524063DEST_PATH_IMAGE006
Figure 524063DEST_PATH_IMAGE006
26. Bearing seat
Figure 102812DEST_PATH_IMAGE008
Figure 102812DEST_PATH_IMAGE008
27 are distributed on the side of the box body 10 far away from the chain wheel 8 and are provided with bearing covers
Figure 881412DEST_PATH_IMAGE002
1. Bearing cap
Figure 952136DEST_PATH_IMAGE004
Figure 952136DEST_PATH_IMAGE004
3 and a bearing cap
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Figure 300815DEST_PATH_IMAGE006
7. Bearing cap
Figure 406175DEST_PATH_IMAGE008
Figure 406175DEST_PATH_IMAGE008
9 are also distributed on the box 10 on the side close to the chain wheel 8, avoiding bearing seats
Figure 480310DEST_PATH_IMAGE002
24. Bearing seat
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Figure 507172DEST_PATH_IMAGE004
25. Bearing seat
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Figure 692165DEST_PATH_IMAGE006
26. Bearing seat
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Figure 120873DEST_PATH_IMAGE008
27 interfere with the sprocket 8.
As shown in fig. 1 to 5, the box 10 can be adjusted correspondingly according to the different racks while keeping the internal structure unchanged, so as to adapt to different racks for reliable installation and fixation.
The working process of the invention is as follows: during operation, the chain wheel 8 rotates to drive the shaft 2 to rotate, and the shaft 2 drivesThe incomplete gear 14 rotates, and the incomplete gear 14 is in meshed transmission with the bilateral rack 18 to convert circular motion into reciprocating linear motion. The bilateral rack 18 drives the rectangular pyramid 11 at the lower end to do continuous reciprocating up-and-down linear motion to open holes in the farmland, taking the clockwise rotation of the incomplete gear 14 as an example, when the incomplete gear 14 is in meshing transmission with the right side of the bilateral rack 18, the bilateral rack 18 moves downwards to drive the rectangular pyramid 11 to open holes downwards, and when the incomplete gear 14 is in meshing transmission with the left side of the bilateral rack 18 again, the bilateral rack 18 moves upwards to drive the rectangular pyramid 11 to move upwards, so that a hole opening operation cycle is completed. Along with the advancing of the seeder, the hole opening device continuously reciprocates to carry out hole opening operation, thereby realizing continuous operation. The top end of the hole opening device is provided with a limit baffle 5 for positioning and limiting the bilateral rack 18, and a rubber pad at the upper end of the box body 10 is used for positioning and limiting the bilateral rack
Figure 365909DEST_PATH_IMAGE002
Figure 365909DEST_PATH_IMAGE002
4. Rubber pad
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And 6, buffering and absorbing vibration. Ball bearings are disposed on both sides of the double-sided rack 18
Figure 839058DEST_PATH_IMAGE002
13. Ball bearing
Figure 122272DEST_PATH_IMAGE004
Figure 122272DEST_PATH_IMAGE004
15. Ball bearing
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Figure 538210DEST_PATH_IMAGE006
17. Ball bearing
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Figure 274085DEST_PATH_IMAGE008
19 to ensure the normal and smooth up and down reciprocating motion of the bilateral rack 18. Ball bearing
Figure 66460DEST_PATH_IMAGE002
Figure 66460DEST_PATH_IMAGE002
13. Ball bearing
Figure 204180DEST_PATH_IMAGE004
Figure 204180DEST_PATH_IMAGE004
15. Ball bearing
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Figure 791020DEST_PATH_IMAGE006
17. Ball bearing
Figure 810928DEST_PATH_IMAGE008
Figure 810928DEST_PATH_IMAGE008
19 are mounted on a shaft with bearing caps at both ends
Figure 282361DEST_PATH_IMAGE002
1. Bearing cap
Figure 897757DEST_PATH_IMAGE004
Figure 897757DEST_PATH_IMAGE004
3. Bearing cap
Figure 530863DEST_PATH_IMAGE006
Figure 530863DEST_PATH_IMAGE006
7. Bearing cap
Figure 365964DEST_PATH_IMAGE008
Figure 365964DEST_PATH_IMAGE008
9 and bearing seat correspondingly matched with same
Figure 375508DEST_PATH_IMAGE002
24. Bearing seat
Figure 346875DEST_PATH_IMAGE004
Figure 346875DEST_PATH_IMAGE004
25. Bearing seat
Figure 150883DEST_PATH_IMAGE006
Figure 150883DEST_PATH_IMAGE006
26. Bearing seat
Figure 473280DEST_PATH_IMAGE008
Figure 473280DEST_PATH_IMAGE008
27。
A fender 12 is provided at the lower end of the housing 10 to ensure that no soil is stuck to the rectangular pyramid 11 when the sowing machine advances, and a double leaf spring is horizontally provided
Figure 20936DEST_PATH_IMAGE002
20. Mud scraper
Figure 348275DEST_PATH_IMAGE002
Figure 348275DEST_PATH_IMAGE002
21. Mud scraper
Figure 588763DEST_PATH_IMAGE004
Figure 588763DEST_PATH_IMAGE004
22. Double-layer spring piece
Figure 132877DEST_PATH_IMAGE004
Figure 132877DEST_PATH_IMAGE004
23, by double-layer spring leaf
Figure 484224DEST_PATH_IMAGE002
Figure 484224DEST_PATH_IMAGE002
20 outwards eject the mud scraper
Figure 430183DEST_PATH_IMAGE002
Figure 430183DEST_PATH_IMAGE002
21, by a double-layer spring sheet
Figure 638311DEST_PATH_IMAGE004
Figure 638311DEST_PATH_IMAGE004
23 outwards eject the mud scraper
Figure 545087DEST_PATH_IMAGE004
Figure 545087DEST_PATH_IMAGE004
22, making the mud scraping plate
Figure 824758DEST_PATH_IMAGE002
Figure 824758DEST_PATH_IMAGE002
21. Mud scraper
Figure 500590DEST_PATH_IMAGE004
The distance between the rectangular pyramids 22 changes along with the reciprocating motion of the rectangular pyramids 11, so that the soil on the rectangular pyramids 11 is scraped, and the normal operation of opening the holes is ensured.
While the present invention has been described in detail with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, and various changes and modifications can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims (3)

1. The utility model provides a seeder opening cave device which characterized in that: comprises a shaft (2), a chain wheel (8), a box body (10), a rectangular pyramid (11) and a ball bearing
Figure DEST_PATH_IMAGE002
(13) Incomplete gear (14), ball bearing
Figure DEST_PATH_IMAGE004
(15) Ball bearing
Figure DEST_PATH_IMAGE006
(17) A double-sided rack (18) and a ball bearing
Figure DEST_PATH_IMAGE008
（19）；
The incomplete toothed gear (14) is meshed with the double-sided rack (18), when the incomplete toothed gear (14) is meshed with one side of the double-sided rack (18), the whole double-sided rack (18) can move upwards or downwards, and when the incomplete toothed gear (14) is meshed with the other side of the double-sided rack (18), the double-sided rack (18) can move in the direction opposite to the last moving direction;
the incomplete gear (14) and the chain wheel (8) are respectively arranged at two ends of the shaft (2), when the chain wheel (8) rotates, the shaft (2) is driven to rotate, and the shaft (2) drives the incomplete gear (14) to rotate;
the bilateral rack (18) is made into an internal gear, the external part is smooth, the whole body is in a closed rectangular shape, and two side edges of the bilateral rack (18) and the ball bearings
Figure 525143DEST_PATH_IMAGE002
(13) Ball bearing
Figure 114387DEST_PATH_IMAGE004
(15) Ball bearing
Figure 612233DEST_PATH_IMAGE006
(17) Ball bearing
Figure 476284DEST_PATH_IMAGE008
(19) The bilateral racks (18) move up and down smoothly by matching; the incomplete gear (14) and the bilateral rack (18) are both arranged in the box body (10), the lower end of the bilateral rack (18) extends out of the rectangular pyramid (11), and the bilateral rack (18) can drive the rectangular pyramid (11) to continuously reciprocate up and downLinear motion;
the bottom of the box body (10) extends downwards to form a mudguard (12), and the lower part of the mudguard (12) is provided with a double-layer spring piece
Figure 25077DEST_PATH_IMAGE002
(20) Mud scraper
Figure 316381DEST_PATH_IMAGE002
(21) Mud scraper
Figure 504786DEST_PATH_IMAGE004
(22) Double-layer spring leaf
Figure 172528DEST_PATH_IMAGE004
(23) A mud scraping device of a rectangular pyramid (11); double-layer spring piece
Figure 310248DEST_PATH_IMAGE002
(20) And a mud scraper
Figure 959404DEST_PATH_IMAGE002
(21) Working in cooperation with the double-layer spring piece (23) and the mud scraper
Figure 169193DEST_PATH_IMAGE004
(22) The double-layer spring leaf is matched to work, and in the process that the rectangular pyramid (11) moves downwards to the hole opening position
Figure 843888DEST_PATH_IMAGE002
(20) Double-layer spring leaf
Figure 757486DEST_PATH_IMAGE004
(23) Mud scraper
Figure 108702DEST_PATH_IMAGE002
(21) Mud scraper
Figure 22431DEST_PATH_IMAGE004
(22) Continuously compressing, and in the process that the rectangular pyramid (11) completes the hole opening and upward movement, the double-layer spring piece
Figure 484506DEST_PATH_IMAGE002
(20) Double-layer spring leaf
Figure 331239DEST_PATH_IMAGE004
(23) Outwards-bouncing mud scraping plate
Figure 59548DEST_PATH_IMAGE002
(21) Mud scraper
Figure 726153DEST_PATH_IMAGE004
(22) To make the mud scraping plate
Figure 788656DEST_PATH_IMAGE002
(21) Mud scraper
Figure 427578DEST_PATH_IMAGE004
(22) Scraping off mud attached to the rectangular pyramid (11).
2. The planter hole opening device of claim 1, wherein: four through holes are symmetrically formed in the front and the back of the box body (10) so as to facilitate the installation of the ball bearings
Figure 855018DEST_PATH_IMAGE002
(13) Ball bearing
Figure 992607DEST_PATH_IMAGE004
(15) Ball bearing
Figure 812795DEST_PATH_IMAGE006
(17) Ball bearing
Figure 355159DEST_PATH_IMAGE008
(19) Shaft and bearing cap required for installation
Figure 235391DEST_PATH_IMAGE002
(1) And a bearing cap
Figure 407746DEST_PATH_IMAGE004
(3) And a bearing cap
Figure 218576DEST_PATH_IMAGE006
(7) And a bearing cap
Figure 143676DEST_PATH_IMAGE008
(9) And a bearing seat
Figure 398071DEST_PATH_IMAGE002
(24) Bearing seat
Figure 979094DEST_PATH_IMAGE004
(25) Bearing seat
Figure 381563DEST_PATH_IMAGE006
(26) Bearing seat
Figure 177481DEST_PATH_IMAGE008
（27）。
3. The planter hole opening device of claim 1, wherein: the top end of the bilateral rack (18) is provided with a limit baffle (5), the bilateral rack (18) is connected with the limit baffle (5) through a connecting rod (16), and a rubber pad is pasted at the position where the limit baffle (5) is contacted with the box body (10)
Figure 930673DEST_PATH_IMAGE002
(4) Rubber pad
Figure DEST_PATH_IMAGE010
（6）。
CN201710507080.3A 2017-06-28 2017-06-28 Hole opening device of seeder Active CN107295831B (en)

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