JP3379932B2 - Conveyor frame structure for root cropper - Google Patents

Description

Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a frame structure of a rod conveyor device used for a root vegetable harvester such as a beet harvester. 2. Description of the Related Art A root harvester such as a beet harvester is connected to a towing vehicle such as a tractor to dig root vegetables while traveling in a root vegetable field, and a rod conveyor provided with the digged root vegetables at a lower portion of the harvester. It is conveyed diagonally upward by the device and loaded into a hopper on a harvester via a horizontal conveyor, a lifter, or the like. In this rod conveyor device, an endless rod conveyor is suspended between rotation engaging members axially mounted on left and right guide frames, and is configured to rotate along the longitudinal direction of the frame. [0004] Root crops excavated from the soil of the field are transported together with the soil and root stems of the root vegetables by a rod conveyor, and a part of the soil and leaf stems is passed through a gap in the rod conveyor. It is swept down below the conveyor, but part of it is swung down on the left and right lateral frames of the conveyor. [0005] In the conventional rod conveyor device, since the upper surfaces of the left and right frames are flat, soil and mud that have been shaken down from the conveyor to the left and right accumulate on the flat surface of the upper surface of the frame.
This not only reduces the smooth transport function of the conveyor, but also interrupts the work. Further, since soil and leaf stems are hardly deposited in a mixed state, it is extremely difficult to remove them and maintenance is not easy. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a conveyor device having a structure in which mud and foliage are less likely to accumulate on a guide frame of a conveyor for transporting excavated root vegetables. [0007] In order to achieve the above object, a conveyor device according to the present invention is arranged such that an endless conveyor is suspended from a rotation engaging member of a left and right guide frame extending in a longitudinal direction, and is excavated from a field. In a conveyor device of a root vegetable harvesting machine for carrying root vegetables, the upper surface of the guide frame is inclined downward to the outside, and the upper edge of the guide frame is formed at an acute angle. An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a side view showing an entire configuration of a root vegetable harvesting machine 1 such as a beet harvester. The root vegetable harvesting machine 1 places a hopper 4 on a chassis 3 having wheels 2 and attaches a towing arm 5 in front of the vehicle body to the rear of the tractor. Connected to the three-point link (not shown) of the
It is configured to be pulled in a direction. As shown in FIGS. 1 to 3, a root vegetable harvesting machine 1
Has a conveyor device 6 for lifting inclined from the machine base 3 toward the ground below, and a shovel member 7 is provided at the lower end of the inclination of the lifting conveyor device 6. Further, the upper end of the conveyor device 6 for lifting and the rotary lifter 8 are connected to the horizontal conveyor device 9.
A deflector 10 for turning the direction is provided in the middle of the horizontal conveyor device 9. Thus, the root vegetables dug and raised by the shovel member 7 are conveyed by the lifting conveyor device 6 and inherited by the horizontal conveyor device 9, sent to the rotary lifter 8 by the deflector 10, and then put into the hopper 4. As shown in FIGS. 2 and 3, the conveyor device 6 has a drive roller 12, a rotation engagement member 13 and the like mounted on the inner facing surfaces of the left and right guide frames 11, 11, and the drive roller 12, the rotation engagement member 13 and the like. In this configuration, the transport means 14 such as an endless rod conveyor is suspended around the member 13 or the like. As shown in FIG. 4, the conveyor device 6 of the present invention forms the upper surfaces of the left and right frames 11, 11 of the conveying means 14 on an inclined surface 15 descending outward, and forms the upper edge 16 at a substantially acute angle. By forming, the frame 11 has a structure in which a flat surface does not exist at the upper end. That is, in the embodiment of FIG. 4, the upper portions of the left and right frames 11, 11 to which the rotation engaging member 13 of the transport means 14 is attached are formed by the vertical inner wall 11a and the inclined surface 15 lowered outward from the upper end of the inner wall. Made of a triangular steel material. The embodiment shown in FIG.
6 is shown with a sharp angle at the tip, but the vertical inner wall 11a
And the descending inclined surface 15 may be substantially at an acute angle,
The tip may have some roundness. With the above structure, the fallen mud and leaf stems spilled from the side of the conveying means 14 onto the left and right guide frames 11, 11 slide down outward along the descending inclined surface 15 of the frame 11, and fall. No longer deposits on top. The embodiment shown in the figure is the conveying means 1 of the conveyor device 6.
Although the case where 4 is a rod conveyor is illustrated, the present invention is also applicable to a case where other conveyor means such as a belt conveyor is used. Although the above description has been given by taking the conveyor device 6 for unloading as an example, the present invention is applied to all the conveyor devices having the guide frame 11. When is used, this is also included. In the figure, reference numeral 17 denotes the conveyor device 6
Reference numeral 18 denotes a cover for covering the upper portion of the guide frame 11 so as to prevent the root vegetables being transported from dropping in the lateral direction of the transport means 14. According to the present invention, since the upper ends of the left and right guide frames for guiding the conveyor form an acute angle, and the outer surface forms a downwardly inclined surface, the soil and mud that has been repelled onto the left and right frames of the conveyor is moved to the upper side of the frame. Fall along the slope without accumulating on the surface. In addition, the leaf stems are pulled off when falling, so that the accumulation of leaf stems is reduced, and even if some of the leaf stems are caught on the upper end of the frame, the upper end of the frame has a sharp ridgeline. It is easy to remove because it is separated from mud and light. Since earth and sand and leaf stems are unlikely to accumulate on the guide frame, piles do not accumulate around the upper portion of the guide frame as in the prior art. Therefore, an unreasonable load is not applied to the structure and power of the conveyor, and the operation is not interrupted, so that the efficiency of the harvesting operation is improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view showing an entire configuration of a root vegetable harvesting machine. FIG. 2 is a plan view of a transport route of the root vegetable harvesting machine. FIG. 3 is an internal explanatory view of a rod conveyor. FIG. Cross sectional view of a guide frame of a conveyor device according to an embodiment [Description of symbols] 1 ... root vegetable harvester 2 ... wheels 3 ... carriage 4 ... hopper 5 ... index arm 6 ... conveyor device 7 ... shovel member 8 ... rotary lifter 9 ... horizontal conveyor DESCRIPTION OF SYMBOLS 10 ... Deflector 11 ... Conveyor frame 12 ... Drive roller 13 ... Rotary engagement member 14 ... Conveying means 15 ... Lowering inclined surface 16 ... Frame upper edge 17 ... Bar 18 ... Cover [Reference number] PAS00-006

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A01D 13/00-33/14 B65G 21/00

Claims (1)

(57) [Claims 1] A conveyor device of a root vegetable harvesting machine that hangs an endless conveyor around a rotation engagement member of a left and right guide frame extending in a longitudinal direction, and loads and transports root vegetables dug out of a field. , Placed on both sides of the conveyor
A frame structure of a conveyor device in a root vegetable harvesting machine, wherein an upper surface of the guide frame to which a falling object from the side hits is formed on an inclined surface descending outward to make an upper edge of the guide frame an acute angle.