CN215421607U - Rice transplanter for planting wide and narrow planting spaces - Google Patents
Rice transplanter for planting wide and narrow planting spaces Download PDFInfo
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- CN215421607U CN215421607U CN202121601704.6U CN202121601704U CN215421607U CN 215421607 U CN215421607 U CN 215421607U CN 202121601704 U CN202121601704 U CN 202121601704U CN 215421607 U CN215421607 U CN 215421607U
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Abstract
The utility model relates to a transplanter for planting wide and narrow planting distance, which comprises: a frame; the transplanting device comprises a rotary box with a rotary axis, and two transplanting arms are arranged on the rotary box; the driving device is provided with a power output end, the power output end is connected with the rotating box, and the rotating box is driven to rotate around the rotating axis at a constant speed; the rotary box is provided with a first connecting part and a second connecting part which are respectively used for being connected with the two transplanting arms, a central angle which takes the rotation axis as the center is formed between the first connecting part and the second connecting part, and the central angle is smaller than 180 degrees. In the process that the rotary box drives the two transplanting arms to rotate at a constant speed, the two transplanting arms sequentially and alternately take seedlings to rotate at different angles, so that the variation of the distance between the seedlings can be realized in the advancing process of the rice transplanter. Because the action process of the rotary box is uniform rotation, strong stopping feeling does not exist, obvious vibration problems do not exist, and the problems that parts are easy to damage, the maintenance is frequent and the like are avoided.
Description
Technical Field
The utility model relates to the technical field of rice transplanting machines, in particular to a rice transplanting machine for planting wide and narrow planting distances.
Background
In rice planting, in order to facilitate illumination and ventilation of rice, reduce plant diseases and insect pests and improve yield, a wide-narrow spacing planting mode is adopted, and a wide-narrow spacing planting mode is also adopted, and fig. 5 shows a wide-narrow planting mode, wherein x refers to a narrow planting distance between two adjacent plants in the same row, y refers to a wide planting distance between two adjacent plants in the same row, and d refers to a row spacing between two adjacent rows of plants. Wherein, aiming at the planting mode that the plant spacing is a wide-narrow spacing, the Chinese patent with the application number of CN201510054546.X (the publication number of CN104663086B) discloses a novel transplanting mechanism of a wide-narrow plant spacing transplanter, which comprises a plurality of transplanting boxes which are transversely arranged, each transplanting box is respectively provided with a left rotating box and a right rotating box, two ends of each rotating box are respectively provided with a transplanting arm, the transplanting mechanism is provided with a main input shaft which is transversely arranged, the main input shaft is connected with each transplanting box and is connected with the power input end through a variable speed rotating box with non-uniform output, the speed change transmission box comprises one or a plurality of speed change gear pairs capable of switching work, each speed change gear pair consists of a driving gear and a driven gear, each driving gear is connected with a power input end through a corresponding transmission mechanism, and each driven gear is connected with the main input shaft through a corresponding transmission mechanism.
Although the transplanting mechanism of the rice transplanter in the patent can realize wide and narrow planting distance transplanting, the transplanting mechanism has certain defects, a main input shaft of the transplanting mechanism is connected with a transplanting box through a variable speed rotating box with non-uniform output, and the rotating speed of two transplanting arms on the transplanting box is changed to realize the width change of the spacing between the seedlings in the walking direction of the rice transplanter.
Therefore, the existing transplanter for planting with wide and narrow planting distance needs further improvement.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a transplanter for planting wide and narrow row spacing, which is stable in operation and difficult to vibrate, aiming at the current situation of the prior art.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a rice transplanter for wide and narrow planting distance planting, comprising:
a frame;
the transplanting device comprises a rotary box with a rotary axis, wherein two transplanting arms are arranged on the rotary box;
the driving device is provided with a power output end, and the power output end is connected with the rotating box and drives the rotating box to rotate around the rotating axis at a constant speed;
the rotary box is provided with a first connecting part and a second connecting part which are respectively used for being connected with the two transplanting arms, a central angle which takes the rotary axis as the center is formed between the first connecting part and the second connecting part, and the central angle is smaller than 180 degrees.
In order to form reasonable wide and narrow planting distance, the central angle formed by the first connecting part and the second connecting part relative to the rotating axis of the rotating box also needs to be reasonably set, and the value range of the central angle alpha is as follows: alpha is more than or equal to 120 degrees and less than or equal to 150 degrees.
In order to ensure that the supply speed of the seedlings is matched with the rotation process of the two transplanting arms so as to ensure that the seedling taking widths of the transplanting arms are consistent, the seedling-carrying platform is also arranged on the rack in a reciprocating way along the transverse direction of the rack in a way that the moving speed of the seedling-carrying platform can be adjusted.
In order to realize the differential movement of the seedling carrying platform, the seedling carrying platform further comprises a non-uniform gear transmission mechanism and a seedling platform movement mechanism used for driving the seedling carrying platform to move, wherein the power output end of the non-uniform gear transmission mechanism is in transmission connection with the seedling platform movement mechanism, and the power input end of the non-uniform gear transmission mechanism is connected with the power output end of the driving device. And the rotation of the rotary box for one circle is used as a seedling transplanting period, one seedling transplanting period comprises a narrow-plant-spacing seedling transplanting process and a wide-plant-spacing seedling transplanting process, the output speed of the power input end of the non-uniform gear transmission mechanism is high corresponding to the narrow-plant-spacing seedling transplanting process, and the output speed of the power input end of the non-uniform gear transmission mechanism is low corresponding to the wide-plant-spacing seedling transplanting process, so that the moving distances of the seedling carrying platforms are the same.
The non-uniform gear transmission mechanism can adopt various prior arts such as an elliptic gear transmission mechanism, an eccentric circular gear and a conjugate gear mechanism thereof or a logarithmic spiral gear mechanism, and adopts the elliptic gear transmission mechanism in order to ensure that the non-uniform transmission process is more stable and reliable.
In order to drive the seedling carrying platform to move along the transverse direction of the rack stably, the rack is provided with guide rails which are transversely arranged, the seedling carrying platform is arranged on the guide rails in a sliding manner, the seedling carrying platform movement mechanism comprises a spiral shaft which is arranged along the transverse direction of the rack in an extending manner, the seedling carrying platform is in transmission connection with the spiral shaft, and the power output end of the non-uniform gear transmission mechanism is connected with the spiral shaft.
Compared with the prior art, the utility model has the advantages that: the first connecting part and the second connecting part which are used for being connected with the two transplanting arms on the rotary box are not intersected with the rotation axis of the rotary box, namely, an included angle formed between the first connecting part and the second connecting part relative to the rotation axis of the rotary box is not 180 degrees, therefore, in the process that the rotary box drives the two transplanting arms to rotate at a constant speed, the angles of the two transplanting arms which take seedlings alternately and rotate in sequence are different, and therefore, the width change of the seedling intervals can be realized in the advancing process of the rice transplanter. Because the action process of the rotary box is uniform rotation, strong stop feeling does not exist, and obvious vibration problem does not exist, so that the problems of easy damage of parts, frequent maintenance and the like are avoided.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a left side view of the swivel case of FIG. 1;
FIG. 3 is a schematic structural diagram of a non-uniform gear transmission mechanism according to an embodiment of the present invention (the non-uniform gear transmission mechanism is in a fast transmission state);
FIG. 4 is a schematic structural diagram of a non-uniform gear transmission mechanism according to an embodiment of the present invention (the non-uniform gear transmission mechanism is in a slow transmission state);
FIG. 5 is a schematic diagram of a wide and narrow planting distance planting method in the prior art.
Detailed Description
The utility model is described in further detail below with reference to the accompanying examples.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and that the directional terms are used for purposes of illustration and are not to be construed as limiting, for example, because the disclosed embodiments of the present invention may be oriented in different directions, "lower" is not necessarily limited to a direction opposite to or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
Referring to fig. 1 to 4, a rice transplanter for wide and narrow planting distance planting includes a frame 10, a planting device, a traveling device, a seedling stage 30, and a driving device 40. The seedling carrying platform 30 is arranged on the frame 10 and can reciprocate along the transverse direction of the frame 10 so as to transfer seedlings to the position of the seedling taking opening 12 of the frame 10 in time for the transplanting device to take the seedlings. The running gear is arranged at the bottom of the frame 10 and is used for driving the transplanter to move integrally.
Referring to fig. 1, the frame 10 has a transversely arranged guide rail 11, and the seedling stage 30 is slidably constrained on the guide rail 11. The rack 10 is further provided with a seedling stage movement mechanism, specifically, the seedling stage movement mechanism comprises a screw shaft 61 extending along the transverse direction of the rack 10, the seedling carrying stage 30 is in transmission connection with the screw shaft 61, and when the screw shaft 61 rotates, the seedling carrying stage 30 can be driven to move transversely and reciprocally (in detail, the direction indicated by the dotted arrow in fig. 1), and the movement processes of the seedling stage movement mechanism and the seedling carrying stage 30 are the prior art and are not described again.
With continued reference to fig. 1, the insertion device has a plurality of sets spaced apart along the transverse direction of the frame 10. Each set of transplanting devices comprises a swivel box 20 and two transplanting arms 23 provided on the swivel box 20, wherein the swivel box 20 has a rotation axis, i.e. a central axis of the swivel box 20 itself performing a circular rotation.
The rotating box 20 of the present embodiment is connected to the driving device 40 and rotates around the rotating axis at a constant speed, wherein the driving device 40 can be a power source for supplying total power by using a rice transplanter in the prior art. An important point of the present embodiment is that the swivel case 20 has a first connecting portion 21 and a second connecting portion 22 for connecting with the two transplanting arms 23, respectively, wherein a central angle α centered on the rotation axis O is formed between the first connecting portion 21 and the second connecting portion 22, and the central angle is smaller than 180 °, that is, when the central position of the first connecting portion 21, the central position of the second connecting portion 22 and the rotation center of the swivel case 20 are on the same plane, the central position of the first connecting portion 21, the central position of the second connecting portion 22 and the rotation center of the swivel case 20 are not on the same straight line (see fig. 2 for details), and the rotation center of the swivel case 20 is on the rotation axis O of the swivel case 20 (see fig. 1 for details with broken lines). In order to form a reasonable planting distance, the central angle α formed by the first connecting portion 21 and the second connecting portion 22 with respect to the rotation axis O of the rotating box 20 also needs to be set reasonably, wherein α is 120 ° ≦ 150 °, preferably, α is 135 °, see fig. 2 in detail.
Because the included angle formed between the first connecting part 21 and the second connecting part 22 of the rotating box 20 relative to the rotating axis of the rotating box 20 is not 180 degrees, in the process that the rotating box 20 drives the two transplanting arms 23 to rotate at a constant speed, the angles of the two transplanting arms 23 for alternately taking seedlings to rotate are different (namely, the used time is different), and the width change of the seedling intervals can be realized in the advancing process of the rice transplanter (see figure 5 in detail), wherein, because the action process of the rotating box 20 is the constant-speed rotation, strong stopping feeling does not exist, obvious vibration problem does not exist, and the problems that parts are easy to damage, frequent maintenance and the like are avoided.
Because the rotation angles of the two transplanting arms 23 for alternately taking seedlings in turn are different, the transverse moving speed of the seedling carrying platform 30 also needs to be correspondingly matched, in order to realize the differential moving of the seedling carrying platform 30, the driving device 40 is connected with the rotating shaft of the seedling carrying platform 30 through a non-uniform gear transmission mechanism, specifically, the non-uniform gear transmission mechanism can be an elliptic gear transmission mechanism 50, referring to fig. 3 and 4, the elliptic gear transmission mechanism 50 comprises a first elliptic gear 51 and a second elliptic gear 52 which are meshed with each other, wherein the first elliptic gear 51 is connected with the power output end of the driving device 40 through a cylindrical gear set (wherein the first elliptic gear 51 is coaxially arranged with one cylindrical gear in the cylindrical gear set), thereby forming the power input end of the non-uniform gear transmission mechanism, the second elliptic gear 52 is connected with the rotating shaft of the seedling carrying platform 30, thereby forming the power output end of the non-uniform gear transmission mechanism, which is shown in detail in figure 1. One rotation of the rotary box 20 is used as a seedling transplanting period, the seedling transplanting period comprises a narrow planting distance seedling transplanting process and a wide planting distance seedling transplanting process, the output speed of the power input end of the non-uniform gear transmission mechanism is high corresponding to the narrow planting distance seedling transplanting process, and the output speed of the power input end of the non-uniform gear transmission mechanism is low corresponding to the wide planting distance seedling transplanting process, so that the moving distances of the seedling carrying platforms 30 are the same.
On the basis of the above embodiments, other embodiments can be obtained by replacing and improving the related technical features. For example, the non-uniform gear transmission mechanism of the present embodiment may be an elliptic gear transmission mechanism 50, or may be an eccentric circular gear and a conjugate gear mechanism thereof, or a logarithmic spiral gear mechanism, etc., as long as the output speed thereof can be changed alternately.
Claims (6)
1. A rice transplanter for wide and narrow planting distance planting, comprising:
a frame (10);
the transplanting device comprises a rotary box (20) with a rotary axis (O), wherein two transplanting arms (23) are arranged on the rotary box (20);
the driving device (40) is provided with a power output end, the power output end is connected with the rotating box (20), and the rotating box (20) is driven to rotate around the rotating axis (O) at a constant speed;
the method is characterized in that: the rotating box (20) is provided with a first connecting part (21) and a second connecting part (22) which are respectively used for being connected with the two transplanting arms (23), a central angle (alpha) taking the rotating axis (O) as the center is formed between the first connecting part (21) and the second connecting part (22), and the central angle (alpha) is smaller than 180 degrees.
2. The rice transplanter for wide and narrow planting distance planting according to claim 1, wherein: the value range of the central angle (alpha) is as follows: alpha is more than or equal to 120 degrees and less than or equal to 150 degrees.
3. The rice transplanter for wide and narrow planting distance planting according to claim 1 or 2, wherein: the seedling carrying platform (30) is arranged on the rack (10) in a reciprocating manner along the transverse direction of the rack (10) in a manner that the moving speed of the seedling carrying platform (30) can be adjusted.
4. A rice transplanter for wide and narrow row spacing planting according to claim 3, wherein: the seedling stage moving mechanism is characterized by further comprising a non-uniform gear transmission mechanism and a seedling stage moving mechanism used for driving the seedling carrying stage (30) to move, wherein the power output end of the non-uniform gear transmission mechanism is in transmission connection with the seedling stage moving mechanism, and the power input end of the non-uniform gear transmission mechanism is connected with the power output end of the driving device (40).
5. The rice transplanter for wide and narrow planting distance planting according to claim 4, wherein: the non-uniform gear transmission mechanism adopts an elliptic gear transmission mechanism (50).
6. The rice transplanter for wide and narrow planting distance planting according to claim 4, wherein: the seedling carrying platform is characterized in that a guide rail (11) which is transversely arranged is arranged on the rack (10), the seedling carrying platform (30) is arranged on the guide rail (11) in a sliding mode, the seedling carrying platform moving mechanism comprises a screw shaft (61) which is arranged along the transverse extension of the rack (10), the seedling carrying platform (30) is in transmission connection with the screw shaft (61), and the power output end of the non-uniform gear transmission mechanism is connected with the screw shaft (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121601704.6U CN215421607U (en) | 2021-07-12 | 2021-07-12 | Rice transplanter for planting wide and narrow planting spaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121601704.6U CN215421607U (en) | 2021-07-12 | 2021-07-12 | Rice transplanter for planting wide and narrow planting spaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215421607U true CN215421607U (en) | 2022-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121601704.6U Active CN215421607U (en) | 2021-07-12 | 2021-07-12 | Rice transplanter for planting wide and narrow planting spaces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215421607U (en) |
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2021
- 2021-07-12 CN CN202121601704.6U patent/CN215421607U/en active Active
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