CN209806432U - Combined non-circular gear planetary gear train pot seedling taking mechanism - Google Patents
Combined non-circular gear planetary gear train pot seedling taking mechanism Download PDFInfo
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- CN209806432U CN209806432U CN201920437875.6U CN201920437875U CN209806432U CN 209806432 U CN209806432 U CN 209806432U CN 201920437875 U CN201920437875 U CN 201920437875U CN 209806432 U CN209806432 U CN 209806432U
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- circular gear
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- 230000005540 biological transmission Effects 0.000 abstract description 15
- 210000000078 claw Anatomy 0.000 abstract description 9
- 240000005002 Erythronium dens canis Species 0.000 abstract 1
- 238000002054 transplantation Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
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Abstract
The utility model discloses a combined non-circular gear planetary gear train pot seedling taking mechanism. The existing incomplete non-circular planetary gear train has the disadvantages of non-ideal motion track and small seedling pushing angle. The utility model comprises a first central incomplete non-circular gear, a second central incomplete non-circular gear, a first middle non-circular gear, a second middle non-circular gear, a third middle non-circular gear, a fourth middle non-circular gear, a fifth middle non-circular gear, a sixth middle non-circular gear, a first planet non-circular gear, a second planet non-circular gear and a seedling taking arm; the first central incomplete non-circular gear is provided with only a single concave tooth, and the first intermediate incomplete non-circular gear and the fourth intermediate incomplete non-circular gear are both provided with only a single convex tooth. The utility model discloses because the second level gear pair chooses for use two solitary complete gear engagement, combines the big drive ratio meshing transmission of single concave tooth of first order and single dogtooth for total drive ratio curve adjustability is stronger, and it can be darker to get the seedling claw income alms bowl seedling, and it can be bigger to push away the seedling angle.
Description
Technical Field
The utility model belongs to the agricultural machine field relates to a seedling mechanism is got to vegetables, concretely relates to modular non-circular gear planetary gear train alms bowl seedling mechanism of getting.
Background
The transplanting has the comprehensive benefits of advancing the crop growth and compensating the climate, can fully utilize the photo-thermal resource and has considerable economic and social benefits. The pot seedling transplanting operation in paddy fields and dry lands needs to develop a transplanting and seedling taking mechanism. In order to solve the problems of large rigid impact of an intermittent transmission mechanism with a locking arc and unsatisfactory track and power performance formed by a continuous transmission mechanism of a two-order free non-circular gear planetary gear train, the planetary gear train rotary type non-uniform speed continuous automatic seedling taking mechanism based on combined incomplete non-circular gear transmission with the characteristic of secondary unequal amplitude and large fluctuation of transmission ratio in a period is applied. The mechanism has stable transmission and small impact, and avoids the problems of unsatisfactory movement track of the vertex of the seedling taking claw, small seedling pushing angle, low pot seedling uprightness and the like in rigid impact during meshing.
Disclosure of Invention
The utility model aims at prior art not enough, provide a modular non-circular gear planetary gear train alms bowl seedling gets seedling mechanism, this mechanism accords with the required special orbit requirement of alms bowl seedling transplanter, gets the seedling degree of depth and pushes away the better and transmission of seedling gesture steadily, strike for a short time.
The utility model discloses a central pin, planet carrier, incomplete non-circular gear in first center, the incomplete non-circular gear in second center, incomplete non-circular gear in the middle of first jackshaft, second jackshaft, incomplete non-circular gear in the middle of the first, the second, non-circular gear in the middle of the third, incomplete non-circular gear in the middle of the fourth, incomplete non-circular gear in the middle of the fifth, non-circular gear in the middle of the sixth, first planet axle, second planet axle, first planet non-circular gear, second planet non-circular gear and get seedling arm. The central shaft is fixed with the planet carrier; the second central incomplete non-circular gear is fixed with the rack, the first central incomplete non-circular gear and the second central incomplete non-circular gear are fixed, and gear teeth of the first central incomplete non-circular gear and the second central incomplete non-circular gear are arranged on different sides; the first central incomplete non-circular gear and the second central incomplete non-circular gear are sleeved on the central shaft in a hollow way; the first intermediate shaft and the second intermediate shaft are symmetrically arranged on two sides of the central shaft and are connected with the planet carrier through bearings; the first middle incomplete non-circular gear, the second middle incomplete non-circular gear and the third middle non-circular gear are all connected with the first intermediate shaft through splines, and the fourth middle incomplete non-circular gear, the fifth middle incomplete non-circular gear and the sixth middle non-circular gear are all connected with the second intermediate shaft through splines; the first central incomplete non-circular gear is only provided with a single concave tooth, and the first middle incomplete non-circular gear and the fourth middle incomplete non-circular gear are both only provided with a single convex tooth; the first planet shaft and the second planet shaft are symmetrically arranged at two ends of the planet carrier and are connected with the planet carrier through bearings; the first planet non-circular gear is connected with the first planet shaft through a spline, and the second planet non-circular gear is connected with the second planet shaft through a spline; when the first middle incomplete non-circular gear is meshed with the first central incomplete non-circular gear, the second middle incomplete non-circular gear is separated from the second central incomplete non-circular gear, and the fifth middle incomplete non-circular gear is meshed with the second central incomplete non-circular gear; when the first middle incomplete non-circular gear is separated from the first central incomplete non-circular gear, the second middle incomplete non-circular gear is meshed with the second central incomplete non-circular gear; when the fourth intermediate incomplete non-circular gear is meshed with the first central incomplete non-circular gear, the fifth intermediate incomplete non-circular gear is separated from the second central incomplete non-circular gear, and the second intermediate incomplete non-circular gear is meshed with the second central incomplete non-circular gear; when the fourth middle incomplete non-circular gear is separated from the first central incomplete non-circular gear, the fifth middle incomplete non-circular gear is meshed with the second central incomplete non-circular gear; the third intermediate non-circular gear is meshed with the first planetary non-circular gear, and the sixth intermediate non-circular gear is meshed with the second planetary non-circular gear. One ends of the first planet shaft and the second planet shaft extending out of the planet carrier are respectively fixed with a shell of a seedling taking arm; the seedling pushing cams of the two seedling taking arms are fixed with the planet carrier.
The pitch curve parameters of the first middle incomplete non-circular gear and the fourth middle incomplete non-circular gear are the same, the pitch curve parameters of the second middle incomplete non-circular gear and the fifth middle incomplete non-circular gear are the same, the pitch curve parameters of the third middle non-circular gear and the sixth middle non-circular gear are the same, and the pitch curve parameters of the first planet non-circular gear and the second planet non-circular gear are the same.
The utility model has the advantages that:
the utility model has the advantages that the unequal-speed transmission enables the seedling needle point of the seedling-taking claw to form the seedling-taking track, thereby meeting the agricultural requirements of pot seedling transplantation; compared with the existing non-circular planetary gear train seedling taking mechanism, the second-stage gear pair adopts two independent complete gears for engagement, is not influenced by the engagement of the incomplete gear of the first stage, and is combined with the large transmission ratio engagement transmission of the single concave gear and the single convex gear of the first stage, so that the adjustability of a total transmission ratio curve is stronger, an ideal seedling taking section track inserted into a plug tray and a seedling pushing posture are easier to form, the top point of a seedling taking claw is deeper into a pot seedling, the depth can be increased by 5mm at most, and the seedling taking stability is improved; meanwhile, the seedling pushing angle of the seedling pushing section can be increased by 15 degrees at most.
Drawings
FIG. 1 is a sectional view of the overall structure of the present invention;
FIG. 2 is a schematic view of the working principle of the present invention;
fig. 3 is a schematic view of the engagement of each gear on the second intermediate shaft with the first central incomplete non-circular gear, the second central incomplete non-circular gear and the second planetary non-circular gear;
FIG. 4 is a schematic view of the tooth profile engagement of the gears in the present invention;
FIG. 5-1 is a sectional view of the internal structure of the seedling-picking arm of the present invention;
FIG. 5-2 is a schematic view of the overall structure of the seedling picking arm of the present invention;
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, 2, 3 and 4, a combined non-circular gear planetary gear train pot seedling taking mechanism comprises a central shaft 13, a planet carrier 19, a first central incomplete non-circular gear 6, a second central incomplete non-circular gear 5, a first intermediate shaft 12, a second intermediate shaft 14, a first intermediate incomplete non-circular gear 2, a second intermediate incomplete non-circular gear 4, a third intermediate non-circular gear 3, a fourth intermediate incomplete non-circular gear 7, a fifth intermediate incomplete non-circular gear 8, a sixth intermediate non-circular gear 9, a first planet shaft 11, a second planet shaft 15, a first planet non-circular gear 1, a second planet non-circular gear 10 and a seedling taking arm 16. One end of the central shaft 13 is connected with the power device, and the other end is fixed with the planet carrier 19; the second central incomplete non-circular gear 5 is fixed with the frame, the first central incomplete non-circular gear 6 and the second central incomplete non-circular gear 5 are fixed, and the gear teeth of the first central incomplete non-circular gear 6 and the second central incomplete non-circular gear 5 are arranged on different sides; the first central incomplete non-circular gear 6 and the second central incomplete non-circular gear 5 are both sleeved on the central shaft 13; the first intermediate shaft 12 and the second intermediate shaft 14 are symmetrically arranged on two sides of the central shaft 13 and are connected with the planet carrier 19 through bearings; the first middle incomplete non-circular gear 2, the second middle incomplete non-circular gear 4 and the third middle non-circular gear 3 are all connected with the first intermediate shaft 12 through splines, and the fourth middle incomplete non-circular gear 7, the fifth middle incomplete non-circular gear 8 and the sixth middle non-circular gear 9 are all connected with the second intermediate shaft 14 through splines; the first central incomplete non-circular gear 6 is only provided with a single concave tooth, and the first middle incomplete non-circular gear 2 and the fourth middle incomplete non-circular gear 7 are both only provided with a single convex tooth; the first planet shaft 11 and the second planet shaft 15 are symmetrically arranged at two ends of the planet carrier 19 and are connected with the planet carrier 19 through bearings; the first planet non-circular gear 1 is connected with a first planet shaft 11 through a spline, and the second planet non-circular gear 10 is connected with a second planet shaft 15 through a spline; when the first middle incomplete non-circular gear 2 is meshed with the first central incomplete non-circular gear 6, the second middle incomplete non-circular gear 4 is separated from the second central incomplete non-circular gear 5, and the fifth middle incomplete non-circular gear 8 is meshed with the second central incomplete non-circular gear 5; when the first middle incomplete non-circular gear 2 is separated from the first central incomplete non-circular gear 6, the second middle incomplete non-circular gear 4 is meshed with the second central incomplete non-circular gear 5; when the fourth intermediate incomplete non-circular gear 7 is meshed with the first central incomplete non-circular gear 6, the fifth intermediate incomplete non-circular gear 8 is separated from the second central incomplete non-circular gear 5, and the second intermediate incomplete non-circular gear 4 is meshed with the second central incomplete non-circular gear 5; when the fourth middle incomplete non-circular gear 7 is separated from the first central incomplete non-circular gear 6, the fifth middle incomplete non-circular gear 8 is meshed with the second central incomplete non-circular gear 5, so that the transmission continuity is ensured; the third intermediate non-circular gear 3 meshes with the first planetary non-circular gear 1, and the sixth intermediate non-circular gear 9 meshes with the second planetary non-circular gear 10. One ends of the first planet shaft 11 and the second planet shaft 15 extending out of the planet carrier 19 are respectively fixed with a shell 16-1 of a seedling taking arm 16; the seedling pushing cams 16-2 of the two seedling taking arms 16 are fixed with the planet carrier 19.
The pitch curve parameters of the first middle incomplete non-circular gear 2 and the fourth middle incomplete non-circular gear 7 are the same, the pitch curve parameters of the second middle incomplete non-circular gear 4 and the fifth middle incomplete non-circular gear 8 are the same, the pitch curve parameters of the third middle non-circular gear 3 and the sixth middle non-circular gear 9 are the same, and the pitch curve parameters of the first planetary non-circular gear 1 and the second planetary non-circular gear 10 are the same.
As shown in fig. 5-1 and 5-2, the seedling arm 16 is a mature prior art seedling arm assembly such as that disclosed in the patent application No. 201210293743.3.
As shown in figure 2, the planet carrier 19 rotates anticlockwise, and the seedling needle point of the seedling taking arm 16 forms a seedling taking track 17 through the unequal-speed transmission of gears; the head part of the seedling taking track is provided with a buckle, a seedling taking section is arranged from a tip point of the head part to the top part of the pot seedling tray, the length of the seedling taking section is 35mm, compared with the existing non-circular planetary gear train seedling taking mechanism, the top point of a seedling taking claw is deeper into the pot seedlings, and the seedling taking stability is improved; meanwhile, the seedling pushing angle of the seedling pushing section can be increased by 15 degrees at most.
The combined non-circular gear planetary gear train pot seedling taking mechanism has the working principle that:
the power is transmitted to the planet carrier 19 through the central shaft 13 to drive the planet carrier 19 to rotate; the first central incomplete non-circular gear 6 and the second central incomplete non-circular gear 5 are sleeved on the central shaft 13 and fixed with the frame, and the planet carrier 19 is provided with a first middle incomplete non-circular gear 2, a second middle incomplete non-circular gear 4, a third middle non-circular gear 3, a fourth middle incomplete non-circular gear 7, a fifth middle incomplete non-circular gear 8, a sixth middle non-circular gear 9, a first planet non-circular gear 1 and a second planet non-circular gear 10 for revolution; when the first middle incomplete non-circular gear 2 is meshed with the first central incomplete non-circular gear 6, the second middle incomplete non-circular gear 4 is separated from the second central incomplete non-circular gear 5, and the fifth middle incomplete non-circular gear 8 is meshed with the second central incomplete non-circular gear 5; when the first intermediate incomplete non-circular gear 2 is disengaged from the first central incomplete non-circular gear 6,
the second intermediate incomplete non-circular gear 4 is meshed with the second central incomplete non-circular gear 5; when the fourth intermediate incomplete non-circular gear 7 is meshed with the first central incomplete non-circular gear 6, the fifth intermediate incomplete non-circular gear 8 is separated from the second central incomplete non-circular gear 5, and the second intermediate incomplete non-circular gear 4 is meshed with the second central incomplete non-circular gear 5; when the fourth middle incomplete non-circular gear 7 is separated from the first central incomplete non-circular gear 6, the fifth middle incomplete non-circular gear 8 is meshed with the second central incomplete non-circular gear 5, so that the transmission continuity is ensured; the third middle non-circular gear 3 is meshed with the first planet non-circular gear 1, and the sixth middle non-circular gear 9 is meshed with the second planet non-circular gear 10, so that the unequal-speed transmission of the seedling taking claw 16 is realized.
When the planet carrier 19 rotates to a seedling pushing position, the seedling pushing cam 16-2 pushes the seedling pushing fork 16-4 to rotate, the seedling pushing fork 16-4 drives the seedling pushing rod 16-3 to move towards the head of the seedling taking claw 16, the seedling pushing claw 16-7 at the head of the seedling pushing rod completes the seedling pushing action, the seedling needle 16-8 opens under the action of the seedling pushing rod, and the pot seedling 18 falls off; when the planet carrier 19 rotates to a seedling taking position, the seedling pushing shifting fork 16-4 is positioned at a near-rest section of the seedling pushing cam 16-2, the seedling pushing rod 16-3 and the seedling pushing shifting fork 16-4 return to an initial position under the action of the spring 16-5 (one end of the spring is limited by the seedling pushing rod 16-3, and the other end of the spring is limited by the spring seat 16-6), and the seedling needle 16-8 clamps the pot seedlings 18 in the pot seedling tray under the action of the seedling pushing claw 16-7 to finish the seedling taking action and prepare for next seedling pushing.
Claims (2)
1. The utility model provides a modular non-circular gear planetary gear train alms bowl seedling mechanism of getting, includes center pin, planet carrier, the incomplete non-circular gear in first center, the incomplete non-circular gear in second center, incomplete non-circular gear in first jackshaft, second jackshaft, incomplete non-circular gear in first centre, incomplete non-circular gear in the middle of the second, incomplete non-circular gear in the middle of the fourth, incomplete non-circular gear in the middle of the fifth, first planet axle, second planet axle, first planet non-circular gear, second planet non-circular gear and get seedling arm, its characterized in that: the first intermediate non-circular gear and the second intermediate non-circular gear are arranged in the first gear; the central shaft is fixed with the planet carrier; the second central incomplete non-circular gear is fixed with the rack, the first central incomplete non-circular gear and the second central incomplete non-circular gear are fixed, and gear teeth of the first central incomplete non-circular gear and the second central incomplete non-circular gear are arranged on different sides; the first central incomplete non-circular gear and the second central incomplete non-circular gear are sleeved on the central shaft in a hollow way; the first intermediate shaft and the second intermediate shaft are symmetrically arranged on two sides of the central shaft and are connected with the planet carrier through bearings; the first middle incomplete non-circular gear, the second middle incomplete non-circular gear and the third middle non-circular gear are all connected with the first intermediate shaft through splines, and the fourth middle incomplete non-circular gear, the fifth middle incomplete non-circular gear and the sixth middle non-circular gear are all connected with the second intermediate shaft through splines; the first central incomplete non-circular gear is only provided with a single concave tooth, and the first middle incomplete non-circular gear and the fourth middle incomplete non-circular gear are both only provided with a single convex tooth; the first planet shaft and the second planet shaft are symmetrically arranged at two ends of the planet carrier and are connected with the planet carrier through bearings; the first planet non-circular gear is connected with the first planet shaft through a spline, and the second planet non-circular gear is connected with the second planet shaft through a spline; when the first middle incomplete non-circular gear is meshed with the first central incomplete non-circular gear, the second middle incomplete non-circular gear is separated from the second central incomplete non-circular gear, and the fifth middle incomplete non-circular gear is meshed with the second central incomplete non-circular gear; when the first middle incomplete non-circular gear is separated from the first central incomplete non-circular gear, the second middle incomplete non-circular gear is meshed with the second central incomplete non-circular gear; when the fourth intermediate incomplete non-circular gear is meshed with the first central incomplete non-circular gear, the fifth intermediate incomplete non-circular gear is separated from the second central incomplete non-circular gear, and the second intermediate incomplete non-circular gear is meshed with the second central incomplete non-circular gear; when the fourth middle incomplete non-circular gear is separated from the first central incomplete non-circular gear, the fifth middle incomplete non-circular gear is meshed with the second central incomplete non-circular gear; the third middle non-circular gear is meshed with the first planet non-circular gear, and the sixth middle non-circular gear is meshed with the second planet non-circular gear; one ends of the first planet shaft and the second planet shaft extending out of the planet carrier are respectively fixed with a shell of a seedling taking arm; the seedling pushing cams of the two seedling taking arms are fixed with the planet carrier.
2. The combined non-circular gear planetary gear train pot seedling taking mechanism according to claim 1, characterized in that: the pitch curve parameters of the first middle incomplete non-circular gear and the fourth middle incomplete non-circular gear are the same, the pitch curve parameters of the second middle incomplete non-circular gear and the fifth middle incomplete non-circular gear are the same, the pitch curve parameters of the third middle non-circular gear and the sixth middle non-circular gear are the same, and the pitch curve parameters of the first planet non-circular gear and the second planet non-circular gear are the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920437875.6U CN209806432U (en) | 2019-04-02 | 2019-04-02 | Combined non-circular gear planetary gear train pot seedling taking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920437875.6U CN209806432U (en) | 2019-04-02 | 2019-04-02 | Combined non-circular gear planetary gear train pot seedling taking mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN209806432U true CN209806432U (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920437875.6U Expired - Fee Related CN209806432U (en) | 2019-04-02 | 2019-04-02 | Combined non-circular gear planetary gear train pot seedling taking mechanism |
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| CN (1) | CN209806432U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113228897A (en) * | 2021-02-22 | 2021-08-10 | 中国农业大学 | Automatic tray supplying and high-speed seedling taking and throwing device of automatic plug seedling transplanter |
| CN113317013A (en) * | 2021-03-26 | 2021-08-31 | 江苏大学 | Probing type seedling taking device and one-way feeding seedling taking method |
-
2019
- 2019-04-02 CN CN201920437875.6U patent/CN209806432U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113228897A (en) * | 2021-02-22 | 2021-08-10 | 中国农业大学 | Automatic tray supplying and high-speed seedling taking and throwing device of automatic plug seedling transplanter |
| CN113228897B (en) * | 2021-02-22 | 2022-05-20 | 中国农业大学 | Automatic tray supplying and high-speed seedling taking and throwing device of automatic plug seedling transplanter |
| CN113317013A (en) * | 2021-03-26 | 2021-08-31 | 江苏大学 | Probing type seedling taking device and one-way feeding seedling taking method |
| CN113317013B (en) * | 2021-03-26 | 2022-05-17 | 江苏大学 | Probing type seedling taking device and one-way feeding seedling taking method |
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