JPS635443Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a storage device for a rotary work machine,
More specifically, the present invention relates to an improvement in a resting device that uses a cover mechanism that covers a rotary working part to prevent the working machine from falling over.

A drive-type tiller, which is an example of a rotary work machine, is attached to a traveling work vehicle such as a tractor and is widely used as a work machine that can plow and crush soil at the same time.

A gauge device is usually attached to this work machine to set the working depth and carry the weight, but in some cases a pair of left and right gauge wheels are provided in front of the rotary tiller, and in other cases a pair of left and right gauge wheels are provided in front of the rotary tiller. Usually, a pair of gauge wheels is provided.

Although each of these gauge devices is useful, a common problem is that the grounding point is strictly a line contact, so they are relatively immersed in the field, and the wheels may roll depending on the soil type, especially in wetlands or sandy areas. This is causing great resistance.

From this point of view, it has been proposed and put into practical use that a stable grounding body device consisting of a skid is attached to the side area of the rotary working section, ie, the tilling section, in place of the gauge wheel device.

However, because the conventional stable grounding body device slides on the field, the front and rear of the grounding body in the longitudinal direction are usually curved upward in a so-called arc shape. If the work equipment is removed from a connecting device such as the above, it will fall forward or backward due to the center of gravity of the work equipment. If the working machine falls in this way, the work of connecting the working machine not only becomes very troublesome and requires heavy labor, but also causes pain in the working machine. Furthermore, when working with a rotary work machine towed on a traveling work vehicle, if the position is controlled using the hydraulic control device installed on the work vehicle, there is virtually no need for a gauge device or a stable grounding device on the work machine. , Even such work equipment falls over when removed from the work vehicle.

In order to solve this problem, it is necessary to prepare a separate stand or take appropriate support means, which not only increases the size of the device and is uneconomical in terms of cost, but also causes problems in the timing of attaching and detaching the stand. In the end, attaching, detaching and handling the work equipment was complicated and dangerous.

Therefore, the applicant first proposed a resting device with a stand function that utilizes the rear cover of the cover mechanism that covers the rotary working part (U.S. Patent No.
4240508).

However, since the rotation direction of the rotary working part does not change, the proposed technology is a rotary working machine (hereinafter also referred to as a forward/reverse type) that can be freely used in forward and reverse directions without having to replace the tilling claws. It is not suitable for some people.

In other words, in a forward/reverse rotary work machine, the rear cover of the cover mechanism is changed back and forth, and the direction in which it is set relative to the traveling work vehicle is reversed, making it extremely difficult to use the rear cover as a stand member. It is from.

Therefore, the present invention has been developed to ensure that when the rotary work machine is removed from a traveling work vehicle, whether it is a rotary work machine that can be used for both forward and reverse rotation, or whether it is a rotary work machine that is only for forward rotation or only for reverse rotation, The purpose of this invention is to provide a storage device for a rotary work machine that prevents the machine from falling over, is easy to reset, and is convenient for storing the work machine. a frame; a drive frame having a rotary working part;
A rotary work machine is provided with a cover mechanism that covers a rotary working part, and a mounting machine frame and a drive machine frame are attached so that they can be joined and separated, the cover mechanism has at least a main cover and a side cover, and the cover mechanism has at least a main cover and a side cover, and The cover is attached to the drive frame side so as to be able to move up and down, and the outer circumference of the rotary working part and the side cover are spaced back and forth and grounded, and the outer circumference of the rotary working part and the side cover work together to form a stand. It is characterized by the provision of side cover fixings for functional purposes.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

In FIGS. 1 to 3 showing the first embodiment,
Reference numeral 1 denotes a rotary work machine, which is connected to a traveling work vehicle (not shown) via a three-point linkage mechanism 4 consisting of a top link 2 and a lower link 3 so as to be able to move up and down, and to be detachable.

The rotary work machine 1 includes a mounting machine frame 5, a drive machine frame 9 having a rotary work part 8 shown by a claw shaft 6 and a tilling claw 7, and a cover mechanism 1 that covers the rotary work part 8.
It is mainly composed of 0 and 0.

The mounting machine frame 5 has inverted U-shaped fitting portions 11 at both left and right ends.
The main body 12 has a top mast 13, a pair of left and right lower link mounting brackets 14, a support link 15 connecting the top mast 13 and the lower link mounting bracket 14, the front end of which is pivoted to the main body 12 so as to be vertically movable. A gauge rod 16 with a ring-shaped gauge 16A and a top mast 1
3 and a screw-type or telescopic cylinder-type adjustment connection body 17 which pivotally connects the intermediate portion of the gauge rod 16, and one end of the top link 2 is attached to the top mast 13, and one end of the top link 2 is attached to each lower link mounting bracket 14. One end of each lower link 3 is removably pivoted via a ball socket 18.

The drive frame 9 includes a gear case 20 in which a bevel gear mechanism having front and rear power receiving shafts 19 is built in at the center of the upper part, a cylindrical support arm 21 that protrudes outward from the gear case 20 to the left and right, and a support arm 21. It is composed of a side transmission case 22 and a side frame fixed downward at each outer end, and a pawl shaft 6 is rotated around a horizontal axis at a lower corresponding part of the side transmission case 22 and the side frame. It is freely pivoted.

Then, a transmission shaft that interlocks the bevel gear mechanism in the gear case 20 and the wrap transmission mechanism or gear transmission mechanism in the side transmission case 22 is inserted and supported in one of the support arms, and is connected to the PTO shaft of the traveling work vehicle and the power reception. By connecting the shaft 19 with a universal joint shaft, the rotary working section 8 can be driven in a side drive manner in this example.

Note that the transmission system of the rotary working section 8 may be a center drive type.

The placement machine frame 5 and the drive machine frame 9 are attached to each other so that they can be joined and separated, but in this embodiment, the fitting parts 11 formed on the left and right sides of the placement machine frame 5 are respectively fitted into the support arms 21 of the drive machine frame 9 from above. A pin 2 that can be freely inserted and removed in the front and rear direction is placed around the bottom of the support arm 21.
3, both machine frames 5 and 9 can be freely joined and separated.

The cover mechanism 10 includes at least a main cover 24 and side covers 25 and 26, and in this embodiment further includes a rear cover 27 and a front cover 28, respectively, and the main cover 24 includes a side transmission case 22 and a side cover. It is installed between the frames so as to cover the upper side of the rotary working section 8, and the side covers 25, 2
Boards 31 and 32 are attached to the side transmission case 22 via stays 29 and 30, respectively, which are attached to the front, rear, upper and lower sides of the side transmission case 22, and pivots 33 and 34 are attached to the outside of each of the boards 31 and 32 as a fulcrum in this embodiment. In addition to polymerizing in a vertically swingable manner (freely moving vertically),
A fixture 37 consisting of a bolt 35 and a nut 36,
38, the outer periphery of the rotary working section 8 and the side covers 25, 26 can be fixed freely in a grounded state in which they are separated from each other in the front and back.

That is, in this embodiment, the fixtures 37 and 38 are attached to the substrates 31 and 32, respectively, and the pivots 33 and 3
Guide holes 39, 40 are provided on the radial circumference with 4 as the fulcrum.
are formed on the side covers 25 and 26, respectively, and fixtures 37 and 38 are inserted and supported in guide holes 39 and 40, respectively.

Note that the side covers 25 and 26 are connected to the substrates 31 and 32.
In this case, a pair of guide holes are formed in each of the side covers 25 and 26 in parallel in the vertical direction, and a fixing device is inserted into the guide holes. It is designed to be inserted and supported. In any case, it is desirable to form peripheral flanges on the grounding portions of the side covers 25, 26 as shown in FIG. 8 to enlarge the grounding surfaces.

In the first embodiment, the front cover 28 and the rear cover 27 are attached to stays 41 and 42 provided on the left and right sides of the mounting machine frame 5 so as to protrude in the front-rear direction, via bending fittings 43 and 44, and the front cover 28 and the rear cover 27 are The upper part of the cover 28 and the upper part of the rear cover 27 are overlapped with the front and rear edges of the main cover 24, respectively.

Further, in the first embodiment, the gauge rod 16 and the rear cover 27 are connected by a pair of right and left elastic holding mechanisms 45 to bias the rear cover 27 in the ground direction.

In the second embodiment shown in FIGS. 4 and 5,
One power receiving shaft 19 is provided at the front, and the rear cover 27 is connected to the main cover 24 which has the front cover integrally through a bending fitting 46, and the stay 42 on the drive machine frame 9 side and the rear cover 27 are connected to the left and right. This embodiment differs from the first embodiment in that it is connected by a pair of elastic holding mechanisms 45, but other basic configurations are the same as in the first embodiment, so common parts are indicated by common symbols.

In both the illustrated first and second embodiments, a so-called rear gauge is shown as the gauge device, but even if it is a skid type gauge provided on both sides of the rotary working section 8, It may be a gauge provided in each of the lower links 3 of the point link mechanism 4, and in the case of such an embodiment not shown, the mounting machine frame 5 and the drive machine frame 9 in the illustrated embodiment are joined together and cannot be separated. It may be a so-called integrated rotary machine frame, and in this case, the attachment/detachment part (ball socket 18 part) between the three-point linkage mechanism 4, top mast 13, and lower link mounting bracket 14 is connected to the traveling work vehicle and the rotary work machine 1. Therefore, the three-point linkage mechanism 4 constitutes a mounting machine frame for a traveling work vehicle. When the pass mounting machine frame 5 is a dedicated type, it means a three-point link mechanism (or an elevating link).

Next, the effect will be explained.

In the first embodiment, FIG. 1 shows the working state of down cutting by so-called normal rotation, and the gauge 16A is
With the working depth set by , the rotary working unit 8 is driven and the tilling work is carried out.

In order to change from FIG.
7 and 38, and rotate the side covers 25 and 26 downward using the pivots 33 and 34 as supporting points to position them on the tangent line to the outer circumference when the rotary working part 8 is grounded. 37 and 38 to fix the side covers 25 and 26, respectively.

Then, the rotary work machine 1 is lowered, the side covers 25 and 26 and the outer circumference of the rotary work part 8 are spaced apart from each other in the front and back, and then grounded. Then, the left and right pins 23 are pulled out, and the three-point link mechanism 4 is raised. , the mounting machine frame 5 and the driving machine frame 9 are separated as shown in FIG.

At this time, the driver frame 9 is attached to the side covers 25 and 26.
Due to the stand function achieved by the cooperation between the rotary work unit 8 and the outer circumferential portion of the rotary work unit 8, the work unit 8 can be placed in place without falling over.

Therefore, by changing the direction of the mounting machine frame 5 from side to side as shown in FIG. Therefore, an up-cut method can be achieved without changing the rotational direction of the rotary working section 8, making it suitable for ridge breaking work and weeding work.

Also in the second embodiment shown in FIGS. 4 and 5, the drive frame 9
The mounting machine frame 5 can be installed and removed in the same manner as in the first embodiment, but when the drive machine frame 9 is set, in the second embodiment, the rear cover 27 is covered and used as part of the stand function. be able to. Therefore,
In the second embodiment, the main cover 24 and the rear cover 27 may be integrated.

The present invention includes a mounting machine frame 5 for a traveling work vehicle, a drive machine frame 9 having a rotary working part 8, and a cover mechanism 10 that covers the rotary working part 8.
In a rotary work machine 1 in which a mounting machine frame 5 and a drive machine frame 9 are attached so as to be freely joined and separated, the cover mechanism 10 includes at least a main cover 24 and side covers 25 and 26, and the side covers 25 and 26 are It is attached to the driving machine frame 9 side so as to be vertically movable, and the outer peripheral part of the rotary working part 8 and the side covers 25 and 26 are spaced back and forth and grounded, and the outer peripheral part of the rotary working part 8 and the side covers 25 and 26 are grounded. , 26 are provided with fixing devices 37, 38 for the side covers 25, 26 to function as a stand by the cooperation of the side covers 25, 26, so there are the following advantages.

When removing and storing the rotary work machine 1 from the traveling work vehicle or resetting it, the cover mechanism 1
Since the side covers 25, 26 of 0 and the rotary work unit 8 can be spaced apart from each other in the front and back and grounded, there is an advantage that the rotary work machine 1 can be held in a stable posture without falling over.

In addition, side covers 25 and 26 of the cover mechanism 10
is used as a stand member, and the side covers 25 and 26 can be easily operated with their fixing devices 37 and 38, and the side covers 25 and 26 can be attached to the drive machine frame 9 side to provide a stand function. Because it has a single section, it can be held without tipping forward or backward, regardless of whether it is a dedicated rotary work machine for forward/reverse rotation or a rotary work machine for forward/reverse rotation.This has the advantage that resetting can be done easily and quickly. have

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is an overall side view of the first embodiment, FIG. 2 is a side view showing its operating state (stand state), and FIG. 3 is a cross-sectional view of the first embodiment.
A line sectional view, FIG. 4 is an overall side view of the second embodiment, and FIG. 5 is a side view showing its operating state (stand state). DESCRIPTION OF SYMBOLS 1...Rotary work machine, 4...Three-point link mechanism, 5...Mounting machine frame, 8...Rotary work unit, 9
...Driver frame, 10...Cover mechanism, 24...Main cover, 25, 26...Side cover, 37, 38
……Fixture.

Claims (1)

[Scope of utility model registration request] A mounting machine frame 5 for a traveling work vehicle, a drive machine frame 9 having a rotary working part 8, and a cover mechanism 10 covering the rotary working part 8 are respectively provided, and the mounting machine frame 5 and the driving machine frame 9 are joined. In the rotary working machine 1 which is detachably attached, the cover mechanism 10 includes at least a main cover 24 and side covers 25, 26, and the side covers 25, 26 are attached to the drive machine frame 9 side so as to be vertically movable. , the outer periphery of the rotary working section 8 and the side covers 25, 26 are separated back and forth and grounded, and the outer periphery of the rotary working section 8 and the side covers 25, 26 cooperate to provide a stand function. Fixtures 37, 3 for side covers 25, 26
8.