JPH02231011A - Rotary pickup system - Google Patents

Abstract

PURPOSE:To provide the title system intended for carrying out smooth reciprocating rotation of tine, so designed that a shaft fitted with pickup tines are put to reciprocating rotation through a sun gear fitted at a driving shaft, a planet gear and crank rods fitted at the planet gear. CONSTITUTION:When a driving shaft 5 is rotated in the arrow direction while a machine body travels in the arrow direction, a side plate 6 is rotated in the arrow direction. A planet gear 13 engaged with a sun gear 10 rotating together with the above revolves while making an autorotation, putting a tine-fitted shaft 8 to reciprocating rotation through crank rods 16, 17, thus subjecting pickup tines 9,9,... to reciprocating rotation. Even under overload, the tines are ensured to pick up pasture without causing inversion.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement in a rotary pickup device installed in a grass picking section of a grass harvester.

[Conventional technology]

Conventionally, the rotary pickup device installed in the grass picking section of grass harvesters such as Forage Roku-Vesta, Road Wagon, and Heybela uses a cam, cam follower, eccentric shaft, etc. in the drive unit that rotates the tines back and forth. is generally known.

[Problem to be solved by the invention]

Since the conventional rotary pickup device described above uses a cam/cam follower or an eccentric shaft, it generates large noise and vibration, and when a cam/cam follower is used, the tine is reversed. There were issues that needed to be solved.

The present invention has been made to solve the above problems.

[Means to solve the problem]

To achieve the above object, the present invention provides a rotary pickup device installed in a grass picking section of a grass harvester, in which the rotary pickup device is arranged parallel to the rotational drive shaft through a side plate fixed to the rotational drive shaft. A tine mounting shaft is rotatably supported, a sun gear is mounted on the rotary drive shaft, a planetary gear meshing with the sun gear is supported on the side plate, and power is transmitted from the planetary gear to the tine mounting shaft via the crank rod. The invention is characterized in that it is configured so that the tines attached to the tine attachment shaft are rotated reciprocatingly.

[For production]

With the above configuration, the present invention allows the tines to smoothly reciprocate and to reliably pick up grass without rotating in reverse even in the event of an overload. In addition, it has low noise and vibration, can rotate at high speed, and can be used for harvesting high-yielding grass.

Furthermore, maintenance is easy and there is less wear and tear on the main parts compared to conventional ones.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 denotes a rotary pick-up device, and this rotary pick-up device L is attached to the front part of a grass harvester (for example, a road wagon), not shown, and rotates as the machine advances, forming a line in a field. A drive shaft 5 is pivotally supported by a pair of support frames 2, 2 extending from the grass harvester side via bearings 3, 3 and a flange 4. Power is transmitted from the harvester side via a suitable means (for example, a chain transmission system, a belt transmission system). A pair of left and right side plates 6, 6 are fixed to the drive shaft 5, and a tine mounting shaft 8.8 is parallel to the drive shaft 5 at both ends of the side plates 6.6 via bearings 7, 7... It is pivoted on.

Pick-up tines 9.9 made of elastic wire are attached to the tine attachment shaft 8.8 at predetermined intervals by screws or other means.

A sun gear IO is attached to the drive shaft 5, and planetary gears 13. 13 is supported by the side plate 6 via the supports 11, 11 and bearings 12, 12.

Planetary gear 13. 13 has a locking nut 14. Crank rods 1B and 17 are connected to the tine mounting shaft 8.8 via 15. When the drive shaft 5 rotates in a predetermined direction, the side plate 6 rotates in a predetermined direction, and
Sun gear 101 Planetary gear l3-crank rod 1B,
The tine mounting shaft 8.8 is reciprocated through the shaft 17, and the pickup tines 9, 9, . . . are reciprocated.

The rotary pick-up device having such a configuration is used as a pick-up device for a grass harvester such as a road wagon, and when the drive shaft 5 rotates in the direction of the arrow while the machine body travels in the direction of the arrow in FIG. 6 rotates in the direction of the arrow, and the planetary gear 13 that meshes with the sun gear 1O that rotates along with the planetary gear 13 revolves around its own axis and reciprocates the tine mounting shaft 8 via the crank rods 16 and 17. In .9..., the rotating lower end of the side plate 6 picks up grass collected in rows in the field and rotates in that position, and the rotating upper end of the side plate 6 rotates back and forth to release the grass. .

In this way, the pickup tines 9, 9, .
Because it is driven by a conventional cam/cam follower or an eccentric shaft, the power transmission is smoother, there is less noise and vibration, and a large amount of grass can be picked up, so there is no overload on the pickup tine. To pick up grass and reliably feed it to a harvester without rotating backwards even when the grass is hanging. In addition, the tine mounting shaft 8 to which the pickup tines 9, 9, etc. are attached is secured with locking nuts 14, 15. By removing the bearing 7, the rotary pickup device l
It can be removed completely without disassembling the entire unit, making maintenance easy.

〔Effect of the invention〕

As explained above, the rotary pickup device of the present invention can produce the following effects.

■． The mounting shaft on which the pickup tines are attached is reciprocated by a sun gear attached to the drive shaft, a planetary gear meshing with the sun gear, and a crank rod attached to the planetary gear, resulting in low operating noise and quiet operation. , and less vibration.

■． In addition, since power is transmitted through gears and a crank rod, there is less wear on the main parts, resulting in good durability.

■． Compared to those using cams/cam followers or eccentric shafts, the configuration is simpler and easier to manufacture and maintain.

■． It becomes easy to deal with big-up devices of different sizes.

■． Inspection of pickup tines and tine mounting shafts, etc.
Easy to replace.

[Brief explanation of the drawing]

FIG. 1 is a side view of a rotary pickup device according to the present invention, and FIG. 2 is a cross-sectional plan view thereof. ■... Rotary pickup device, 2... Support frame, 3... Bearing, 4... Flange, 5... Drive shaft, B... Side plate, 7... Bearing, 8... Tine mounting shaft, 9... Big up tine, IO... Sun gear, l1... Shaft, l2... Bearing, l3... Planetary gear, 14. 15...lock nut, 18. 17...
crank rod.

Claims (1)

[Claims] In a rotary pickup device installed in a grass picking section of a grass harvester, the rotary pickup device rotates a tine mounting shaft parallel to the rotation drive shaft via a side plate fixed to the rotation drive shaft. A sun gear is mounted on the rotary drive shaft, a planetary gear that meshes with the sun gear is supported on the side plate, power is transmitted from the planetary gear to the tine mounting shaft via the crank rod, and the tine is mounted. A rotary pickup device characterized in that the tines attached to a shaft are configured to rotate back and forth.