JPS602111A - Seedling planting drive device of rice transplanter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a seedling planting drive device for a rice transplanter.

As shown in Fig. 8, conventional seedling planting drive devices include the following system described in [I], and as shown in Fig. 9, the system described in [II] There are things that do.

[I] The above-mentioned planting gooseberry υ, (6υ) each equipped with a transmission mechanism Q50 to the planting part, and a feed case interlocked with this via a cylindrical transmission case castle. A claw drive shaft (54) linked to the transmission (950) is rotatably installed, and a drive shaft (54) linked to the output shaft of the machine side and a drive shaft (54) linked to the output shaft of the machine are installed in the feed case. +51
19, a helical shaft steel interlocked with a gear, and both sides of these shafts (6), which can be slid freely in the direction of the rotation axis, and
A fixedly connected cross-feeding shaft is installed between the seedling stands, and the cross-feeding shaft is formed into a helical shaft and can be engaged with fc@swivel shaft 9). A member v31 is provided that reciprocates and slides the 1-inch feed goose (5 shafts) by the drive rotation of the helical shaft in the on state, and a chain transmission that interlocks the drive shaft and the pawl drive shaft l54. Mechanism +H is provided.

(ul) Left and right planting cases t6fEl each with a transmission groove ((to) to the planting part, and a cylindrical transmission case I6η
The transmission mechanism (9) is rotatably installed over the feed case steel, and the feed case steel Inside the drive shaft linked to the output shaft of
A cylindrical shaft (71) interlocked with a gear is installed to rotate freely, and within the cylindrical shaft ff1), a transverse feed shaft σ connected to a seedling stand σ2 is installed as a rotation axis. It is inserted and held so that it can slide freely in the direction, and this horizontal feed shaft r73)
The transverse feed shaft V (6
) Of course, a member (751) for reciprocating sliding movement relative to the feed case mower is housed in the cylindrical shaft (71), and a chain transmission mechanism is further provided for interlocking the drive shaft and the pawl drive shaft β. It is being

In the case of the former [I], the claw drive shaft (54), the drive shaft (
A dangerously large space is required to install a large number of axes such as 6@, helical shafts, and lateral feed shafts separately to prevent mutual interference. 71) and the transverse feed shaft (c) are provided on the same axis, but a relatively large space is required to erect these and the drive shaft (tortoise and claw drive shaft β9) separately.
Moreover, in order to interlock each shaft, a large number of transmission mechanisms and a large number of cases for supporting each shaft are required, so in any case, the entire seedling planting drive device becomes large and complicated. At the same time, there was a drawback that the cost was likely to be high.

The present invention aims at overcoming all the above-mentioned drawbacks of the prior art.

The characteristic structure of the seedling planting ffi#J device of the rice transplanter according to the present invention, which was made to achieve the above object, is that it is equipped with a transmission unit for the planting section, and then the rice transplanter is connected to the left and right planting cases. A cylindrical l[shaft is rotatably installed in conjunction with the side output shaft and the transmission mechanism, and within this drive shaft, a transverse feed shaft fixedly connected to the seedling stand rotates and rotates in the direction of the rotation axis. In addition to being fitted and supported so as to be slidable, an a mechanism is provided in which the drive shaft, the lateral feed shaft, and the metal wheels interlock with each other in a differential state due to the rotation of these two wheels. It can be engaged in a spiral groove formed on the outer periphery of the feed shaft, and the relative rotation of the two shafts in the engaged state causes the horizontal feed shaft to reciprocate in the direction of the rotation axis with respect to the drive shaft. The point is that there is a member that allows the

The effects of the above feature configuration are as follows.

Not only do the seedling stand drive system and the planting claw drive system require only two shafts, but because both shafts are fitted together with a coaxial core, more space is available for installing the shafts than with conventional structures. In addition to being able to reduce the number of parts such as the transmission mechanism and case as much as possible, it is possible to reduce the number of parts such as the transmission mechanism and case as much as possible, making the entire seedling planting drive device smaller and simpler, and reducing costs. We were able to achieve this.

Hereinafter, embodiments of the present invention will be described based on the drawings.

The entire structure of the walking rice transplanter shown in Figures 1 and 2 consists of a vertical axis with a solid core at the front and rear center of the frame (1). aII
The nondle (2) whose direction can be changed freely and one traveling 11iifl +3) are pivotally supported by the nondle (2).
2) Orientation The chain case (4), which is steered left and right in conjunction with the night rotation, is fully deployed, and the front part of the frame (1) is equipped with an engine (5) and a transmission case 18). Further, a pair of left and right grounding bodies (7), +7+ are provided on both left and right sides of the running wheel (3), and are movable up and down by driving with the horizontal axis on the end side of the row of 7 as a fulcrum, and the frame 11) At the rear end, a seedling planting device equipped with a bacteria stand (8) and a pair of left and right ground flowers is connected so as to be able to roll freely around the front and rear wheel cores.

The inside of the seedling planting device is constructed as follows.

As shown in FIGS. 8 to 7, the front ends of the pair of left and right planting cases tlLl), tlO) and the frame tl
) is pivotally connected to the central case (Il) so that it can roll freely.
A transmission chain (A
A cylindrical drive shaft is rotatably connected to the planting case 1101, 110+, and a crank for supporting a planting arm with a full planting claw is provided at the rear of each of the planting cases 1101 and 110+, respectively. Between the axes and a swinging arm (!), and
A chain transmission mechanism 9 for transmitting power from the drive shaft (141) to the crankshaft (+7) is provided in each of the planting cases LIOI and LOL.

In addition, a transverse feed shaft connected to the seedling stand (8) is inserted and supported within the drive shaft H so that it can rotate and slide freely in the direction of the rotation axis, and this drive shaft H and the transverse feed shaft A gear 'MA@Fe' is provided to interlock the two shafts I and (C) with a difference in their rotational speeds, and a spiral groove is provided on the outer periphery of the central round shaft part (20g) of the transverse feed shaft (E). (2
), and furthermore, the drive shaft (14) is capable of engaging the spiral #I wing, and the relative rotation of the shafts 04) and (2) in the engagement state allows the horizontal A member (c) for sliding the feed shaft back and forth in the direction of the rotational axis relative to the drive shaft (l) is provided.

Therefore, the four gears (21
a) , (glb) , (glc) , (21d
) is set to zl * zl * zIf + zl, and the number of rotations of the drive shaft (+4) is set to N, not only the lateral feed speed can be changed completely freely.
Therefore, the sprocket (
19a) It is possible to make the planting case 110+ more compact by reducing k, and the gap between the planting case tlO+ and the ground float (9) ftrd! ! By increasing the force and increasing the swing angle of the grounding float (9), it is possible to increase the degree of response to irregularities, plowing depth, etc.

The drive shaft (to) is connected to a part of the holder (1) at the end of the feeding member.
4a) and a pair of left and right first cylindrical portions (
14b), (14b) and a pair of left and right second cylindrical parts (14c), (14c), and the holder part (14a) and the first cylindrical part (14b), (
14b) are integrated by plug welding, and the wJ2 cylindrical portions (14c), (14c) are fitted with the 'NSl gears (21a), (21) of the gear mechanism I21).
a) and chain transmission mechanism (19), sprocket (19a), (19a) f of (19) are provided.

The holder portion (14a) is fitted onto the outer circumferential surface of the central round shaft portion (20a) within the transverse feed shaft in sliding contact or in a similar manner to the outer peripheral surface of the central round shaft portion (20a), and the first cylindrical portion (14b).

(14b) is fitted onto the outer surface of the central round shaft part ('30a) with a platform having an appropriate gap between the outer circumferential surface of the central round shaft part ('30a);
The cylindrical portions (14c) and (14c) I/i are configured to be fitted onto the hexagonal shaft portions (20b) and (20b) of the lateral feed shaft in a manner such that they come into sliding contact with each other.

In addition, the hexagonal shaft part (20b) in the horizontal feed shaft and the case (
The hexagonal shaft portion (2) forms the seal between the hexagonal shaft portion (2) and
A rubber cylindrical sealing material (24) fixed to the outer metal sealing hole 4 is installed, and the free end of the rubber cylindrical sealing material (24) is moved horizontally. Case (to) with one core in a shape that allows sliding movement of shaft (b) and rotation 1411
It is fitted and held at the peripheral edge of the circular hole.

1ifl Seedling stand (8), planting case (tto), cry, ground flow) +91, +9) is connected to the drive shaft O to this machine and can be freely swung back and forth between the shaft centers and can be fixed in S configuration. has been done.

[Brief explanation of drawings]

Figures 1 to 7 are final F! An embodiment of the seedling planting drive device of the rice transplanter according to A is shown, and FIGS. 1 and 2 are an overall side view and an overall plan view of the rice transplanter, and FIG. Figure 4 is a perspective view and a schematic plan view of the seedling planting device, Figure 5 is an enlarged sectional view of the seedling planting drive unit, Figure 6 is a sectional view taken along the line ■-■ in Figure 5, and Figure 7 is a seal. It is a partially cutaway perspective view of the section. FIG. 8 and FIG. 9 are sectional views showing a conventional seedling planting drive device N, respectively. (8) Seedling stand, 901... Planting case, (lsu... Case, 0 odor...
Output shaft, (+4)... Drive shaft, (+9)...
...Transmission mechanism, 4)...Transverse feed shaft, barrel...
...Spiral groove, (c) ...Part group, (Pl...
...Anteroposterior axis.

Claims (1)

[Claims] ■ The left and right planting cases (too) and (tol) each have a transmission mechanism (a) for transmitting power to the planting section.
A cylindrical drive shaft linked to the transmission structure 12J and liQ is rotatably constructed, and this drive shaft (14
), a transverse feed shaft fixedly connected to the seedling stand (8) is inserted and supported so that it can rotate and slide freely in the direction of the rotation axis, and the drive shaft (14I and the end of the transverse feed shaft both of these axes 94). Mechanism tg that interlocks with a difference in the number of revolutions of the company.
i> is provided on the drive shaft H, and the two wheels (14) can be engaged in a spiral groove formed on the outer periphery of the end of the traversing shaft, and in the engaged state. By the relative rotation of (e), the horizontal feed shaft is moved to the drive shaft IJ.
A seedling planting drive device for a rice transplanter, which is provided with a member that slides reciprocatingly in the direction of the rotation axis relative to the rice transplanter. ■ The seedling stand (&), planting case uO), drive shaft H
The transverse feed shaft (C) can be rolled integrally with the front and rear shaft core (P) with respect to the machine via a case (11) that rotatably supports the intermediate part of the drive shaft (I4). A seedling planting drive device for a rice transplanter according to claim 2, which is constructed as follows.