JP2921784B2 - Gearing in rotary planting equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gear train in a rotary planting apparatus. 2. Description of the Related Art Conventionally, a rotary type planting apparatus of this type has been described, for example, in Japanese Patent Publication No. 47-28104, in which a portion of a body near a seedling mounting table is substantially horizontal. A hollow rotating case is attached to the rotating shaft protruding sideways, and a plurality of planting shafts are supported on the outer periphery of the rotating case in parallel with the rotating shaft, and one end of each planting shaft is rotated by the rotating shaft. Of the left and right side plates of the case, the planting claw provided with a seedling dividing claw at the protruding end is protruded in a direction opposite to the body by penetrating a side plate opposite to the body, and the seedling dividing claw is provided. In the rotating case, the rotating case and the non-rotating sun gear are disposed at the center position, and the sun gear and the planetary gear on the planting shaft are mounted in the rotating case. Between the gears via an intermediate gear. In addition, each of the planting bodies is configured to make a vertical swing motion in a posture state facing the seedling mounting table by the rotation of the rotating case. [0003] In the conventional rotary planting apparatus as described above, the intermediate gear is simultaneously engaged with both the non-rotating sun gear and the planetary gear on the planting shaft. Because of the configuration, they must be meshed with each other correctly, and the planting of the elliptical closed loop that is long in the vertical direction and drawn by the tip of the seedling dividing claw from the relationship between the seedling guide and the planting position and the transmission axis. Even if an attempt is made to change the trajectory, the degree of eccentricity of the gear and the size of the gear cannot be changed because there is no degree of freedom in the meshing relationship of the gears. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a gear device in a rotary planting device that can have a degree of freedom in meshing between respective gears of a planetary gear mechanism including a sun gear, an intermediate gear, and a planetary gear. . [0004] In order to achieve the above object, the present invention provides the following gear device in a rotary planting device. That is, a hollow rotating case is attached to a rotating shaft projecting substantially horizontally and laterally from a portion near the seedling mounting table of the airframe, and a plurality of planting shafts are mounted on an outer peripheral portion of the rotating case in parallel with the rotating shaft. One end of each of the planting shafts is protruded in a direction opposite to the fuselage by penetrating a side plate opposite to the fuselage out of the left and right side plates in the rotating case.
What is claimed is: 1. A planting apparatus comprising: a planting body provided with a seedling dividing claw, wherein the seedling dividing claw is attached to a seedling table side, wherein the rotating case has a non-centered position with respect to the rotating case. A rotating sun gear is provided, and an intermediate shaft is supported in a substantially intermediate position between each of the planting shafts and the rotating shaft in parallel with the rotating shaft. A first intermediate gear that meshes with the first intermediate gear; and a second intermediate gear that rotates integrally with the first intermediate gear.
The intermediate gear and the second intermediate gear are gears having unequal distances from the rotation center to the teeth and having different thicknesses, and furthermore, the distance from the gear center position of the first intermediate gear to the center of the intermediate shaft and the second
The distance from the gear center position of the intermediate gear to the center of the intermediate shaft is made different, and this second intermediate gear meshes with the planetary gear on the planting shaft so that the planetary gear is offset from the sun gear. A gear train in a rotary planting device, characterized in that two series gears having two intermediate gears are formed, and rotational movement elements of the gears of the series are different from each other. A two-system meshing mechanism having two intermediate gears is configured so that the planetary gears are arranged in an offset arrangement with respect to the sun gear. The planetary gears with respect to the gears make a rotational movement composed of a plurality of rotating elements. An embodiment shown in the drawings will be described below.
In FIGS. 2, 3, and 4, (1) denotes a transmission case of a rice transplanter, and bosses (2) protrude from both left and right sides of the transmission case (1). Is mounted on a rotating shaft (3) driven by an engine, and the rotating shaft (3)
Is fitted with a rotating case (4). A sun gear (5) is arranged on a rotating shaft (3) in the rotating case (4), and is fixed to the transmission case (1) by a phase adjusting device (not shown). A support shaft (6) is fixed at a position (L) from the rotation shaft (3) of the rotation case (4), and a hollow planting shaft (7) is rotatably fitted on the support shaft (6). I have.
A planting body (8) having a seedling dividing claw (9) is attached to the planting shaft (7). An intermediate shaft (11) is mounted on a rotating case (4) at an intermediate position between the rotating shaft (3) and the planting shaft (7), and a sun gear (5) is mounted on the intermediate shaft (11). The first intermediate gear (12) having the same number of teeth as the sun gear (5) meshes with the sun gear (5) so that the intermediate shaft (11) makes one rotation per rotation of the rotating case (4). A second intermediate gear (13) having the same number of teeth as the first intermediate gear (12) is fitted on the intermediate shaft (11), and the same as the second intermediate gear (13) is mounted on the planting shaft (7). A planetary gear (14), which has the number of teeth and always meshes with it, is fitted so that the planting shaft (7) makes one rotation per rotation of the intermediate shaft (11). Therefore, the planting shaft (7) is configured to make one rotation in the direction opposite to the rotation direction of the rotating case (4) by one rotation of the rotating case (4). When the rotating case (4) revolves in the direction of the arrow (A) by its rotating shaft (3), the first intermediate member meshes with the sun gear (5) which cannot rotate with the transmission case (1). The gear (12) rotates in the direction of arrow B by the same rotation angle as the revolution of the rotation case (4) with the revolution of the rotation case (4). The planting shaft (7) of the planetary gear (14) driven from the first intermediate gear (12) via the second intermediate gear (13) rotates in the direction of arrow C by the rotation of the first intermediate gear (12). That is, since the rotating case (4) rotates in the direction opposite to the rotation direction, the seedling dividing claws (9) of the planting body (8) attached to the planting shaft (7) face the seedling mounting table (10). In a swung position about the rotation axis (3). When the side facing the seedling mounting table (10) descends from top to bottom during this turning movement, the tip of the seedling dividing claw (9) After cutting one seedling from the seedling mat on the seedling mounting table (10) at the part, the seedling is planted in a field scene near the lower lower limit and raised. In this case, the sun gear (5) and the first
The intermediate gear (12) is a positive gear, and the second intermediate gear (1
3) and the planetary gear (14) is an eccentric gear in which the center (O) of each gear is eccentric by an appropriate dimension (e) from the rotation center of each shaft (11) (7), that is, the rotation of the gear. By configuring the gears such that the distance from the center to the teeth is unequal such that one side is longer and the other side is shorter, the planting shaft (7) associated with the revolution of the rotating case (4) in the A direction.
Of the rotating case (4) becomes faster or slower than the rotating speed of the rotating case (4) due to a difference in diameter of the eccentric gears (13) and (14) during one rotation. Of the rotation of the rotating case (4), the non-constant speed rotation of the planting shaft (7) in the direction C in the C direction.
The time when the rotation speed is slowed is the time when the planting body (8) descends so as to approach the field scene, and the C of the planting shaft (7)
By setting the time when the rotation speed increases among the non-constant rotations in the direction to correspond to the time when the rotation speed rises so as to approach the upper limit of the rise of the planting body (8), the planting body (8) can be controlled in the field. When descending to approach the surface, it rotates in the C direction later than the revolution of the rotating case (4) and changes its attitude to the downward direction, and when approaching the upper limit of the ascending, the extra C than the revolution of the rotating case (4). Because the head swings to move in the direction and change its posture upward by itself,
As shown by, the movement locus of the tip of the seedling dividing claw of the planted body (8) is a closed loop curve (16) that is vertically elongated and oval. According to the present invention, in addition to the above-described meshing mechanism, the sun gear and the first intermediate gear (12) are also eccentric gears as shown in FIG. 1, and the sun gear (5) and the first intermediate gear ( 1
The eccentricity (e ₁ ) of ₂ ) is different from the eccentricity (e ₂ ) of the second intermediate gear (13) and the planetary gear (14). With this configuration, the second intermediate gear (1
3) Due to the diameter difference of the planetary gear (14), the rotation speed of the planting body (8) becomes faster or slower than the revolving speed of the rotating case (4), and the sun gear (5), the first Since the rotation speed of the planting body (8) further changes with respect to the revolution speed of the rotating case (8) due to the difference in diameter of the intermediate gear (12), a movement trajectory different from that of FIG. 3 is drawn. .
Therefore, it is possible to cope with a case where it is desired to change the movement trajectory depending on the relationship between the seedling guide and the planting position or the transmission axis. According to the present invention, in the rotary planting apparatus, in the rotary planting apparatus, each planted body attached to the rotating case is moved up and down while being oriented in the direction of the seedling mounting table by the rotational movement of the rotating case. The orbital motion is performed by a first gear train including a sun gear and a first intermediate gear meshing with each other, and a second gear train including a second intermediate gear and a planetary gear meshing with each other, The first intermediate gear meshes only with the sun gear, and the second intermediate gear meshes only with the planetary gear. Therefore, the sun gear and the first intermediate gear, and the second intermediate gear and the planetary gear each have a unique configuration. And the eccentricity can be made different, and the rotational motion element can be made different. Therefore,
Conventionally, the eccentricity could not be changed by a single row in which the intermediate gear was simultaneously meshed with both the non-rotating sun gear and the planetary gear on the planting shaft, but the present invention can do so. It became so. Since the present invention can change the eccentricity as a rotating element of the gear train as described above,
Since the shaft centers can be set at equal intervals, gears can be installed in a narrow case of the rotating case, and each gear can have the same number of teeth and change the thickness of the gear,
There is no increase in the size and weight of the rotating case. Thus, when it is desired to change the movement trajectory of the vertically long elliptical closed loop drawn by the tip of the seedling dividing claw according to the relationship between the seedling guide and the planting position or the transmission axis.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side sectional view of the device of the present invention. FIG. 2 is a plan sectional view of a gear device in a rotary planting device. FIG. 3 is a side sectional view of the same. FIG. Figure [Figure 5] Description of operation [Description of symbols] 1 Transmission case 2 Boss body 3 Rotating shaft 4 Rotating case 5 Sun gear 6 Support shaft 7 Planting shaft 8 Planting body 9 Seedling dividing claw 11 Intermediate shaft 12 First intermediate gear 13 Second intermediate gear 14 planetary gear

Claims (1)

(57) [Claims] A hollow rotating case is attached to a rotating shaft projecting substantially horizontally and laterally from a portion near the seedling mounting table of the airframe, and a plurality of planting shafts are supported on an outer peripheral portion of the rotating case in parallel with the rotating shaft. One end of each of the planting shafts penetrates a side plate of the rotating case opposite to the body out of the left and right side plates, and projects in a direction opposite to the machine body. A planting apparatus comprising a planting body equipped with a seedling dividing claw mounted in a posture facing the seedling mounting table side,
In the rotation case, a non-rotating sun gear is disposed at the center position with respect to the rotation case, and an intermediate shaft is provided at a substantially intermediate portion between each of the planting shafts and the rotation shaft. A first intermediate gear meshing with the sun gear and a second intermediate gear rotating integrally with the first intermediate gear are provided on the intermediate shaft and supported in parallel. The intermediate gear and the second intermediate gear are gears having unequal distances from the rotation center to the teeth and having different thicknesses , and furthermore, the distance from the gear center position of the first intermediate gear to the center of the intermediate shaft and the second intermediate gear. The distance from the gear center position of the gear to the center of the intermediate shaft is made different, and this second intermediate gear meshes with the planetary gear on the planting shaft so that the planetary gear is offset from the sun gear. 2 with two intermediate gears Constitute the meshing relationship of the column, the gear device in a rotary planting device being characterized in that occupies different rotational motion component of the gear of the series between each other.