JP4403186B2 - Disk work machine - Google Patents

Description

  The present invention relates to an agricultural machine, and more particularly to a disk working machine that performs crushed soil after plowing by pulling by a tractor, a so-called disk roller.

  Since the soil in the field becomes hard due to rain and snow, the soil is changed before sowing and the soil is crushed finely.

  The work of crushed soil is widely known as a working machine (combined work machine) that performs tractor towing a series of processes such as crushed soil that is finely crushed after leveling the soil, and leveling the ground crushed soil. This is provided with a disc for crushing (a disc harrow), and may be applied in combination with a pressure reducing roller for leveling.

  By the way, the principle of the conventional crushed earth disc working machine generally has a structure as shown in FIGS. 6 and 7 regardless of whether or not the pressure-reducing roller is integrated.

  That is, the work machine 2 pulled by the tractor 1 is provided with two front and rear disk rows 3 and 4 with respect to the traveling direction, and the angle (gang angle) of the front disk row 3 and the angle of the rear disk row 4 Are fixed at different angles in the range of 0 to 30 degrees with respect to the traveling traversal.

As the disks D constituting the disk rows 3 and 4, disks having various shapes such as a disk having a gently curved surface and a flower disk having a notch in a part of the outer periphery are used. This is to perform a preferable operation according to the depth, the degree of crushed soil, and the like.
JP2003-225003

The problem is the increase in size of the work equipment and the associated movement to the site.
That is, the conventional disk work machine performs the work with the gang angle fixed in advance. The gang angle is adjusted and fixed before work, but when changing the gang angle, the beam material 6 is moved to adjust the angle. For this reason, in the conventional apparatus, it is necessary to provide the front disk row 3 and the rear disk row 4 so as to be sufficiently separated from each other, which inevitably increases the size in the front-rear direction of the device and increases the size.

  The work equipment is pulled and moved by the tractor during work on site, but when moving from the site to the next site, it is loaded and transported on a small truck, so it is desirable to make the device itself as compact as possible, The conventional working machine has a large size in the front-rear direction and may protrude from the truck bed, leaving room for improvement in terms of legal compliance such as the Road Traffic Law.

  Therefore, an object of the present invention is to reduce the size of the disk work machine to such an extent that it can be loaded on a truck bed without any problem.

  In order to achieve the above-mentioned object and to solve the problem, the disk work machine according to the present invention is based on the technical premise of a work machine having two rows of front and rear disk rows in the traveling direction. In addition to providing an angle adjusting shaft, the axle unit of each disk is attached below the gang angle adjusting shaft so as to be interlocked (claim 1).

  According to such a configuration, each disk can independently adjust the angle with respect to the traveling direction by the individual gang angle adjusting axis. For this reason, the front and rear beam members (members) that support the gang angle adjusting shaft may be provided in parallel at the shortest distance, and even if the size in the front-rear direction is reduced and the size is reduced, the work performance that is the same as before is exhibited. .

The disc working machine according to the present invention has a structure for collectively adjusting the gang angle of the disc . A slide member for collectively adjusting the gang angle of each disk and a hydraulic device for driving the slide member in the left-right direction are provided in parallel with the beam material for fixing the gang angle adjustment shaft, while the gang angle adjustment shaft is provided. One end of the connecting bracket that rotates in conjunction with the gang angle adjusting shaft is fixed between the first and second axle units, and the other end of the connecting bracket is fixed to the slide member.

  According to such a configuration, the gang angle adjusting shaft rotates via the connecting bracket by driving the slide member to the left and right via the hydraulic device, so that the gang angle of each disk can also be changed simultaneously. Can do. Unlike the conventional device, the angle of the beam member 6 (FIG. 7) is not changed, but only the slide member arranged in parallel with the beam member is moved left and right. It is possible to adjust the drive collectively.

  According to the disk work machine according to the present invention, the separation distance between the front and rear disk rows can be minimized, and the work machine can be further downsized. As a result, transportation by a small truck becomes easy and labor saving of the storage space can be achieved.

  FIG. 1 shows an embodiment of a disk working machine according to the present invention. Like the conventional work machine, this work machine is connected to the tractor 1 via the swing draw bar H and is advanced by towing the tractor 1. The work machine is moved forward and backward of the strong frame material 11 arranged in the front-rear direction. Disc rows 23 and 24 are provided, respectively, and freely rotating tires 15 are arranged on the left and right sides between the front and rear disc rows 23 and 24.

  The tire 15 is provided so as to be driven up and down through appropriate driving means, for example, a hydraulic device (not shown). This is because the tire 15 is grounded when towed by the tractor 1 and is pulled up during transportation. If it is necessary to change the gang angle during the work, the grounded tire 15 is further lowered to reduce the depth of the disk rows 23 and 24, or lifted from the ground, and the gang angle is reduced. Adjust the corners.

  As shown in FIG. 2, the disk row 23 (24) includes a disk D, an axle unit 33 for freely rotating the disk D, and a horizontal angle (gang angle) of the axle unit 33. A vertical axis unit 36 is provided, the vertical axis unit 36 is fixed to a beam member 39, and a plurality of disks D are arranged in parallel at substantially equal intervals. 32 is an axle, and 37 is a vertical axis (gang angle adjustment axis).

  Reference numeral 38 denotes a bearing that rotatably supports the longitudinal axis 37. Further, the beam member 39 is fixed to the frame member 11 through appropriate means. The beam member 39 has a shape that forms a straight line using a rigid metal material, and is fixed to the frame member 11 so as not to move. The bearing 38 is also present in the vertical axis unit 36 and the axle unit 33 other than those shown, but is not shown because it is inside the case.

  The vertical axis unit 36 is preferably fixed in a state where the case body penetrates the beam member 39, for example. This is to prevent the vertical axis 37 and the axle 32 from shaking by wrapping and fixing the periphery of the case body in a state of being inserted into the beam member 39.

  According to such a configuration, the vertical axis unit 36 is provided on the horizontal beam member 39 fixed to the frame material 11, and the axle unit 33 is fixed to the vertical axis 37 of the vertical axis unit 36. According to the angle adjustment of the vertical axis 37, each can independently change the gang angle. For this reason, it is not necessary to adjust the gang angle by moving the member (reference numeral 6 in FIG. 7) to which the disk D is attached as in the prior art, and the beam members 39 can be installed in parallel and with a minimum separation distance. It becomes possible to freely change and adjust the gang angle. Each disk D can be individually fixed at a set angle by a suitable means such as a bolt.

  FIG. 3 exemplifies a structure for collectively adjusting the angles of the disks D, each of which can independently change the gang angle, to the same angle.

  In this case, a slide member (slide member) 40 is arranged in parallel with the beam member (reference numeral 39 in FIGS. 1 and 2; not shown in FIG. 3), and this slide member 40 is connected via a hydraulic device 41. The slide member 40 is used to adjust and change the gang angle all at once. Reference numeral 42 denotes a piston that is driven forward / backward by the hydraulic device 41, and 43 denotes a connecting member that connects the piston 42 and the slide member 40.

  On the other hand, a connecting bracket 45 is disposed below the vertical axis 37 of the vertical axis unit 36 and above the axle unit 33. The connection bracket 45 has, for example, a substantially Z-shape, and includes, for example, a lower horizontal plate 46 fixed to the vertical axis 37, a vertical plate 47 rising from the lower horizontal plate 46, and an upper end of the vertical plate 47. And an upper horizontal plate 48 directed toward the slide member 40. An upper horizontal plate 48 is fixed to the slide member 40, and the movement of the slide member 40 is transmitted to the vertical axis 37. Reference numeral 49 denotes a fixing bracket for fixing the upper horizontal plate 48 to the slide member 40. The fixing bracket 49 can be used by combining a bolt and a nut, for example. Although FIG. 3 shows the angle adjustment for one disk D, it is a matter of course that a plurality of disks D are attached to the slide member 40 in the same structure in parallel to the illustrated disk D. Other disks D attached to the slide member 40 with the same structure are omitted for simplicity of the drawing.

  According to such a structure, when the slide member 40 arranged in parallel with the beam member 39 is driven to advance and retract in the longitudinal direction via the hydraulic device 41, all the vertical axes 37 are rotated via the connection bracket 45, and contact is made. The disks D connected to the slide member 40 via the bracket 45 change the angle all at once.

  The hydraulic device 41, the piston 42, and the connecting member 43 for driving the slide member 40 are individually arranged in the vicinity of the front and rear slide members 40 so that the front and rear disk rows 23 and 24 can be driven independently. It is desirable to keep it.

  The disk work machine according to the present invention is not limited to the above embodiment. The disk D can be used by freely replacing various shapes. The front and rear disk rows 23 and 24 may be constituted by different types of disks D.

  When changing the gang angle all at once, it is desirable to drive and control the hydraulic device 41 via a control switch (not shown) provided in the driver's seat of the tractor 1, but the hydraulic device 41 is controlled in the vicinity of the slide member 40. Even if a switch is provided, the same effect can be obtained.

  The slide member 40 does not have to be configured by a single metal tube (such as a square tube or a round tube). For example, the slide members 40 constituting the disk rows 23 and 24 are configured using two metal pipes on the left and right sides, hydraulic devices for driving the left and right metal pipes are independently arranged, and the left and right slide members are independently advanced and retracted. It may be drivable. In this way, the left and right disks D of the front disk row 23 or the rear disk row 24 can be changed and adjusted to different gang angles.

  A roller may be provided behind the rear disk row 24 to perform rolling after crushing. When a roller is provided, the dimension in the front-rear direction increases during use. However, as shown in FIG. 4, a bendable arm M that supports the roller R is attached, and the arm R is folded and driven via a hydraulic device (not shown) so that the roller R is shown in FIG. 5. If it is configured to be pulled up above the disk row 24, it will not hinder the loading of the truck. This is because when the roller R is pulled up, the roller R is on the rear disk row 24 and does not affect the longitudinal dimension. Thus, by shortening the front-rear direction dimension of the work machine and attaching the pressure-reducing roller to the rear part, it is possible to obtain a process integrated work machine including a pressure-reduction work in combination with crushed soil and leveling.

  Although it has been described that the hydraulic device 41, the piston 42, and the connecting member 43 are used as the stage for driving the slide member 40 in the left-right direction, the same effect can be obtained by using other mechanisms. For example, a hydraulic drive rack and pinion may be used. When using the contact material 43, it is desirable to disperse the weight by providing a plurality of the contact materials 43.

It is a top view which illustrates the disk work machine concerning a first embodiment. It is a figure which illustrates the support structure of the disk of the working machine shown in FIG. It is a figure which illustrates the support structure of the disk which concerns on 2nd embodiment. It is a top view which shows the state which attached the roller to the disk working machine of FIG. It is a top view which shows the state which pulled up the roller of FIG. It is a side view which shows the conventional disk working machine. It is a top view which shows the conventional disk working machine.

Explanation of symbols

1 Tractor 11 Frame material 15 Tire 23, 24 Disk row 32 Axle 33 Axle unit 36 Vertical axis unit 37 Vertical axis (gang angle adjustment axis)
38 Bearing 39 Beam material (member)
40 Slide member (slide member)
41 Hydraulic device 42 Piston 43 Connecting material 45 Connecting bracket 46 Lower horizontal plate 47 Vertical plate 48 Upper horizontal plate 49 Fixing bracket D Disk H Swing drawbar M Arm R Roller

Claims (1)

In a disk work machine having two rows of front and rear disk rows in the traveling direction,
Each disc has its own gang angle adjustment axis,
The axle unit for each disc, one Ru operatively mounted beneath the gang angle adjusting shaft,
A slide member for collectively adjusting the gang angle of each disk and a hydraulic device for driving the slide member in the left-right direction are provided in parallel with the beam material for fixing the gang angle adjustment shaft,
While fixing one end of the connecting bracket that rotates in conjunction with the gang angle adjustment shaft between the gang angle adjustment shaft and the axle unit,
A disk working machine , wherein the other end of the connection bracket is fixed to the slide member .

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