JPH08126410A - Apparatus for installing rotary apparatus - Google Patents

Abstract

PURPOSE: To enable control form of a rotary apparatus to correspond to two kinds of attaching apparatuses of automatic hitch attaching form and specific three-point link attaching form without increasing control form of the rotary apparatus in a rotary apparatus fitted through a link apparatus installed in the rear of a tractor body and driven by power taking-out shaft of the rear of the tractor body. CONSTITUTION: The rotary apparatus is constituted so as to detachably attach an extending mast 11 to a top mast 5 comprising a plate fixed by a fixing tool at a prescribed interval and the rotary apparatus is fitted by an automatic hitch apparatus installed in the rear end of the link apparatus using the fixing tool of the top mast in a state in which the extending mast is detached and the rotary apparatus is fitted by connecting the top of the top link 10 to the extending mast in a state in which the extending mast is attached.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting device for a rotary device mounted on a rear side of a tractor body via a link.

[0002]

2. Description of the Related Art Conventionally, in a rotary device which is mounted via a link device arranged in the rear portion of the tractor body and is driven by a power take-off shaft at the rear portion of the tractor body, the mounting system with the tractor body is an auto hitch device system. , Or when using a method different from the three-point link device method,
It is already known to prepare a plurality of types of rotary devices having different mounting portions corresponding to the respective mounting devices.

[0003]

When a plurality of types of rotary devices are mounted, as is already known, it is not possible to prepare a rotary device having a different mounting portion for each mounting device. As the number of rotary devices increased, product management and inventory management became complicated.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and is mounted via a link device (3) arranged at the rear portion of the tractor (1) main body, and the tractor (1) is mounted. In the rotary device (2) driven by the power take-off shaft (20) at the rear of the main body, the extension mast (11) is attached to the top mast (5) made of a plate fixed by a fixing tool (16) at a predetermined interval. Is attached to the rear end of the link device (3) by using the fixture (16) of the top mast (5) with the extension mast (11) removed. The rotary device (2) is mounted by the auto hitch device (4), and the extension mast (11) is attached to the rotary mast (11) by connecting the tip of the top link (10) to the rotary mast (11). Dress (4) configured to be wearing the, solved the problems described above.

[0005]

Based on the above structure, from the state in which the top link (10) on the tractor (1) main body side and the top mast (5) on the rotary device (4) side are connected via the automatic hitch device (4). In order to mount the rotary device (2) by another three-point link device, first, the auto hitch device (4) is removed and the drive device (2) from the power take-off shaft (20) is attached.
After removing 1), the extension mast (11) is attached to the top mast (5) of the rotary device (2), and the tractor (1) is attached.
After connecting the top link (10) on the main body side and the lower link (15), the power take-off shaft (20) and the drive device (21) are connected to complete the replacement. That is, by simply installing the extension mast (11) on the top mast (5) of the rotary device (2) of the same type, it is possible to support the auto hitch device (4) system and the three-point link device system. Therefore, the type of the rotary device (2) does not increase due to the difference of the mounting device, and it is easy in product management and inventory management.

The reference numerals in parentheses are for the purpose of contrasting with the drawings, but do not limit the structure of the present invention.

[0007]

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

When the rotary device 2 is attached to the rear of the main body of the tractor 1 via the link 3, as shown in FIG. 1, an automatic hitch device 4 which can be automatically attached to the rear end of the link 3 is provided.
With the rotary device 2 held in a predetermined posture, the tractor 1 main body is moved backward while the rotary device 2
The top mast 5 and the lower hook pin 6 of
The automatic hitch device 4 can be mounted by receiving the corresponding receiving parts of the automatic hitch device 4 and lifting the link 3 upward by hydraulic pressure to automatically lock it with the hook 7 without any human hand. 2 and the tractor 1 with the rotary device 2 attached thereto so that the rear part of the rotary device 2 does not interfere with the ground when moving over a high ridge or when entering or leaving a field facing an inclined surface. As described above, there is a special three-point link device system that can lift the rotary device 2 high in a side view.

More specifically, when the rotary device 2 is mounted on the rear side of the tractor 1 main body, the top link bracket 8 fixed to the center of the upper rear surface of the tractor 1 main body and opened rearward also has the top link opened rearward. The support 9 is mounted, the front end of the top link 10 is supported at the rear end thereof, and the rear end of the top link 10 is supported at the front part of the upper bracket 12 of the above-mentioned automatic hitch device 4 or the extension mast 11 described later. ing.

Lower link pins 14 are fixed to the lower left and right sides of the rear part of the tractor 1 main body, the lower link pins 14 support the tips of the lower links 15, and two lower links 15 extend rearward. The rear end of the lower link 15 is the lower receiving portion of the above-mentioned automatic hitch device 4 or the rotary device 2
Is supported by the lower pin 17 of the support link 16.

At the center of the rear surface of the tractor 1 main body, a power take-off shaft 20 for transmitting the power from the engine to a rear working device.
Is connected to the input shaft of the rotary device 2 via a yoke joint 21 which can be expanded and contracted rearward, and drives the plowing blade 22 via the chain and the plowing shaft of the rotary device 2 to perform the plowing work. To do.

In the rotary device 2, centering on a gear box 23 in the center, the support links 16 are extended leftward and rightward in a front part, and a top mast 5 composed of two plates is extended upward from an upper part. The support link 16 and the top mast 5 are connected at the upper side to form a triangular structure together with the gear box 23.

A tool bar 26 is rotatably extended rearward from the gear box 23, and an attachment such as a tail wheel or a cultivating plate is attached to a rear end of the tool bar 26 and is extended rearward of the top mast 5. It is connected to the arm portion 5a through the plowing depth adjusting handle 27, and by rotating the plowing depth adjusting handle 27, the position of the attachment such as the tail wheel or the cultivating plate is moved up and down, and with the ground contact portion of the plowing blade 22. By both of them, the above-mentioned predetermined posture for automatic mounting of the automatic hitch device 4 is obtained.

Below the gear box 23, a rigid backbone structure 28 having a bent cross section is attached, and on its lower surface,
In order to prevent the soil from scattering from the rotation of the tilling blade 22 and prevent the danger, the rotary cover 30 covers the outer side of the locus of the tilling blade 22 over the entire width, and the rear end of the rotary cover 30 is covered with the tilled soil. A rear cover 31 for leveling is suspended so as to be swingable and is supported between the spine structure 28 and the rear cover 31 via a biasing device.

Tractor 1 equipped with an auto hitch device 4
In order to mount the rotary device 2 on the above, the working depth adjusting handle 27 is rotated to bring the rotary device 2 into a predetermined posture as described above, and the main body of the tractor 1 is moved backward to automatically connect the rotary device 2 to the yoke joint. 21 is contracted, the front end is fitted to the power take-off shaft 20, and the rear end is attached to the rotary device 2
The yoke joint 21 is extended while facing the input shaft on the side and fitted, and after mounting the yoke joint 21, the front end is fixed to the power take-off shaft 20 and the rear end is fixed to the input shaft.

In order to disengage the rotary device 2 from the state where the auto hitch device 4 is mounted, the rotary device 2 is grounded in the opposite manner to the above, and first the yoke joint 21 is contracted so that the power take-off shaft 20 and the rotary device 2 are separated. Off the input shaft,
The hook 7 is unlocked, the hook pin 6 is removed, and the rotary device 2 is further lowered by hydraulic pressure.
With the opening of the upper receiving part of the
When the main body is advanced, the tractor 1 main body and the rotary device 2
Are completely separated.

According to the present invention, the rear end support position of the top link 10 and the rear end support position of the lower link 15 when the special 3-point link type mounting device other than the auto hitch device 4 is mounted on the main body of the tractor 1. The rotary device 2 which is connected to the rear side by aligning the support position of the automatic hitch device 4
And is therefore the basis of the constituent members of the rotary device 2 because of the above-described structure and operation.
A triangular structure formed by the support link 16, the top mast 5 and the gear box 23 is fixed, and an extension mast 11 composed of two plates is provided inside the front end portion of the top mast 2 as shown in FIG. Attach with the nut 11b,
The position of the tip hole of the extension mast 11 is set to the automatic hitch device 4
By matching the rear end support position of the top link 10 of the upper bracket 12 and the front end width of the extension mast 11 with the rear end width of the top link 10, without increasing the management form of the rotary device 2, By simply attaching and detaching the extension mast 11, one type of rotary device 2 can support the auto hitch device 4 on the tractor 1 main body and two types of mounting devices of the special three-point link system.

When the rotary device 2 is raised to the highest position by using the special 3-point link type mounting device, as shown in FIG. 4, the upper surface of the top link bracket 8 and the upper support of the automatic hitch device 4 are received. When the tip 32 of the metal fitting 12 approaches and may come into contact due to vibration or the like while traveling on the road, when inserting the pin 32 connecting the top link bracket 8 and the top link support 9 as shown in FIGS. 5 and 6. At the same time, it is possible to prevent the metals from directly contacting each other by externally mounting the thick hollow elastic body 33.

[0019]

INDUSTRIAL APPLICABILITY The present invention is a rotary device which is mounted via a link device arranged at the rear part of a tractor body and is driven by a power take-off shaft at the rear part of the tractor body, and is fixed by a fixing tool at a predetermined interval. The extension mast is configured to be detachably attached to the top mast formed by the plate, and the auto mast installed at the rear end of the link device by using the fixture for the top mast with the extension mast removed. Since the rotary device is mounted by the hitch device, and the extension mast is attached, the rotary device is mounted by connecting the top link tip to the extension mast. Without changing the model, simply attach and detach the extension mast, and the tractor body is equipped with an auto hitch device and a special three-point link system. It has become possible to correspond to the device.

[Brief description of drawings]

FIG. 1 is a side view of an automatic hitch mounting device.

FIG. 2 is a side view of a special three-point link mounting device.

FIG. 3 is a plan view of the extension mast.

FIG. 4 is a side view of the special 3-point link mounting device when the maximum position is raised.

FIG. 5 is a perspective view of mounting an elastic body.

FIG. 6 is an exploded perspective view of mounting an elastic body.

[Explanation of symbols]

 1 Tractor 2 Rotary Device 4 Auto Hitch Device 5 Top Mast 10 Top Link 11 Extension Mast 15 Lower Link 16 Support Link 20 Power Extraction Shaft 21 Yoke Joint 33 Elastic Body

Claims (1)

[Claims] 1. A rotary device mounted via a link device arranged at the rear of the tractor main body and driven by a power take-off shaft at the rear of the tractor main body, wherein a plate fixed by a fixture at a predetermined interval is used. The extension mast is detachably attached to the top mast, and with the extension mast removed, the fixture for the top mast is used and the automatic hitch device is installed at the rear end of the link device. A mounting device for a rotary device, wherein the rotary device is mounted, and the rotary device is mounted by connecting a top link tip to the extension mast with the extension mast attached.