JPH0553419U - Supporting structure for planter shaft in transplanter - Google Patents

Abstract

(57) [Summary] [Purpose] In a transplanter in which planters attached to planter shafts are used to plant seedlings, the planter shafts supported by the left and right bearings can be adjusted tediously even if there are variations in size. Make it easy to install without any work. [Structure] Both end sides of the planter shaft 14 are supported by left and right bearing portions 18, 18, and a restricting body 30 for preventing axial movement is provided on one of the bearing portions 18 of the planter shaft 14. It was

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a planter shaft support structure to which a planter is attached in a transplanter.

[0002]

[Prior Art]

 Generally, in transplanters such as walk-behind rice transplanters and riding rice transplanters, seedlings are planted by planters attached to planter shafts, but conventional planter shafts have two left and right sides that support both ends of the planter shaft. The bearing has a structure that prevents axial movement. Therefore, if the component parts such as the shaft and the metal have dimensional variations, the planter shaft is loosened. Therefore, the liner or the like is interposed in the bearing portion to adjust the position each time.

[0003]

[Problems to be solved by the present invention]

 By the way, in order to carry out transplanting work in an orderly manner, the planter attached to the planter shaft must be accurately positioned with respect to the seedling take-out port of the seedling mounting table. However, if the liner was adjusted at the bearings one by one, there was a problem that the adjustment work was troublesome and it was difficult to finely adjust the correlation position between the seedling take-out port and the planter. The present invention was devised in view of the above-mentioned circumstances. Even though the planter shaft has both ends supported by the left and right bearings, the planter shaft can be manufactured even if there are variations in the dimensions of each component. It is an object of the present invention to provide a support structure for a planter shaft in a transplanter that can easily position the planter shaft without further adjustment of the liner, etc. without causing play in the mounting.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the technical means taken by the present invention is a transplanter in which a planter mounted on a planter shaft is used to plant seedlings, and both end sides of the planter shaft are supported by left and right bearing portions. At the same time, the planter shaft is characterized in that a restricting body for preventing axial movement is provided only on one of the bearing portions.

Therefore, according to the present invention, the planter shaft to which the planter is attached has its both ends supported by the left and right bearing portions, and the restrictor provided on the planter shaft prevents the planter shaft from moving in the axial direction. Even if there are variations in the dimensions of the shaft, metal, and other components, the planter shaft with the restricting body only on one of the bearings will not cause play in the mounting. It can be easily positioned at the proper mounting position without doing any work.

[0006]

【Example】

 Next, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. Reference numeral 1 is a walk-behind rice transplanter exemplified as a transplanter, in which a mission case 4 and an engine 5 are arranged in front of a body frame 3 supported by wheels 2, and a longitudinal direction is provided below the body frame 3. The float 6 is mounted so as to be vertically movable. On the rear end side of the machine body frame 3, a left and right reciprocating seedling mounting table 7 on which mat seedlings are placed is supported in a front-rear and rear-high manner, and a steering handle 8 is directed rearward and upward toward the rear thereof. Has been extended. Further, below the seedling mounting table 7, a planter 10 is arranged which faces the seedling take-out port of the seedling receiving body 9 and operates for planting. The planter 10 includes a planting rod 11, a planting claw 12 and a seedling extruded body 13 attached to the tip of the planting rod 11.

Reference numeral 14 denotes a planter shaft to which the planter 10 is attached. A tip end of a crank arm 15 fixed to a shaft end of the planter shaft 14 is rotatably supported in a middle portion of the planting rod 11. The motive power from the power source is transmitted to the sprocket 16 fixed to the planter shaft 14 to be rotationally driven. Both ends of the planter shaft 14 are supported by bearings 18, 18 provided on a pair of left and right brackets 17, 17, and the brackets 17, 17 are fixed seats 19, 19 fixed to the body frame 3. The outer surface of the planter shaft 14 is mounted so as to be displaceably fixed about the axis of the planter shaft 14. That is, on the side surface of the fixed seat 19, a mounting hole 21 is opened corresponding to the three adjustment long holes 20 provided in the bracket 17, and a nut 22 is fixed to the inner rear surface of the mounting hole 21. The bracket 17 is displaceably fixed to the side surface of the fixed seat 19 via the mounting bolt 23. Reference numeral 24 is a rotatable bell crank connected to the rear part of the planting rod 11, and the lower end of the bell crank 24 is rotatably connected to a fulcrum shaft 25 provided at the lower end of the bracket 17. When the planter shaft 14 is driven to rotate, the planting rod 11 provided with the planting claw 12 is supported by the crank arm 15 and the bell crank 24, so that the planting claw 12 can be planted in a predetermined manner. After rotating along the locus A and scraping off the mat seedlings on the seedling mounting table 7 for each unit planting stock, the seedling extruding body 13 descends to plant the seedlings in the field P. Then, when the bracket 17 is rotationally displaced, the position of the fulcrum shaft 25 of the bell crank 24 moves, and the distance between the planting locus A of the planting claw 12 and the seedling receiving body 9 approaches or separates, The amount of seedlings scraped can be adjusted. A locking hole 26 is formed in the upper portion of the bracket 17, and the locking hole 26 is movably supported by an adjusting seat 27 provided on the fixed receiving seat 19 via a W nut 28. The tip end of the adjusting rod 29 is engaged, and the bracket 17 can be rotationally displaced by adjusting the adjusting rod 29 back and forth.

The planter shaft 14 is provided with a restricting body 30 for preventing axial movement thereof on only one of the bearing portions 18. That is, the bearings 32 and 33 are fitted and fixed in the bearing holes 31 and 31 formed in the bearing portions 18 and 18, and both ends of the planter shaft 14 are fitted and supported in the bearings 32 and 33. A C ring 34, which is in contact with the outer surface of the bearing 32, is attached and fixed to the plant shaft 14, and another C ring 36 is provided in the bearing hole on the inner surface of the planter shaft 14, which is in contact with the body surface 35. The C-rings 34 and 36 are attached and fixed to the inner surface of 31 and constitute a restricting body 30 that prevents the planter shaft 14 from moving in the axial direction. Therefore, the other bearing portion 18 is in a free state without the regulation body 30.

In the above-described structure, when the planter shaft 14 rotates during the transplanting operation, the planting claws 12 of the planter 10 attached to the planter shaft 14 rotate along the planting track A, The seedlings on the seedling mounting table 7 are scraped from the seedling receiving port of the seedling receiver 9 to a unit planted plant and planted in the field P. At this time, since the planter shaft 14 is prevented from moving in the axial direction by the restricting body 30, it is possible to form an orderly planting strip. When assembling the planter shaft 14, only the C rings 32 and 33 are attached to the bearing 32 provided on the one bearing portion 18 to prevent the planter shaft 14 from moving in the axial direction and to position the planter shaft 14 securely. be able to. In addition, the planer shaft 14 is positioned by only one bearing portion 18 and the other bearing portion 18 is free even if the component parts have dimensional variations. Does not occur. Therefore, unlike the conventional case, it is possible to easily position at an appropriate mounting position without adjusting the liner one by one. In this embodiment, the restricting body 30 including the C rings 34 and 36 is provided on the bearing 32 on one side, but the restricting body 30 may be provided on the bearing 33 on the other side. .

[0010]

[Effect of the device]

 In short, according to the present invention, in a transplanter in which a planter attached to a planter shaft is used for planting seedlings, both end sides of the planter shaft are supported by the left and right bearing portions, and the planter shaft has an axial direction. Since the restricting body that prevents movement is provided on only one of the bearings, both ends of the planter shaft to which the planter is attached are supported by the left and right bearings, but the restricting body is provided on one of the bearings. Only by providing, it is possible to prevent the movement in the axial direction and to easily perform the positioning. Moreover, even if the component parts such as the planter shaft have dimensional variations, the planter shaft provided with the restricting body on only one of the bearings does not cause backlash, so that a particularly troublesome adjustment. Without any work, it can always be installed in the proper mounting position, and an orderly transplantation work can be performed.

[Brief description of drawings]

FIG. 1 is a sectional view of a main part.

FIG. 2 is a side view of a planter.

FIG. 3 is a plan development view of the same.

FIG. 4 is an overall side view of the transplanter.

FIG. 5 is a perspective view of a body frame.

[Explanation of symbols]

 10 Planter 14 Planter Shaft 18 Bearing Part 30 Regulator

Claims (1)

[Scope of utility model registration request] 1. A transplanter adapted to plant seedlings with a planter attached to a planter shaft, wherein both ends of the planter shaft are supported by left and right bearing portions, and the planter shaft is axially moved. A support structure for a planter shaft in a transplanter, wherein a restricting body for preventing is provided only on one of the bearings.