JPH0451613B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a tractor management work machine that is used by being attached to a tractor.

[Prior Art] Conventionally, this type of tractor management work machine has been known as disclosed in Japanese Utility Model Application Laid-open No. 53-117415.

This conventional structure is constructed by connecting a management work machine, which is a spreader for spreading earth, sand, fertilizer, etc., to the rear of the tractor in the direction of travel by a three-point linkage mechanism.

[Problems to be Solved by the Invention] In the case of the conventional structure described above, rocking motion is desired in the work of spreading soil and fertilizer in the scraper body in order to ensure uniform spreading.

In this case, as in Japanese Patent Publication No. 49-16292, a mounting frame is connected to the rear of the power agricultural machine, and a hopper is arranged on the mounting frame so that both left and right sides can swing around a rotation axis in the center. There is a known structure in which cam bodies are brought into contact with the lower part of the hopper with a phase difference of 180 degrees, and each cam body tilts and swings the hopper in the left-right direction about the middle of the hopper.
In this conventional structure, two cam bodies are provided as swing mechanisms between the mounting frame connected to the three-point link type coupling mechanism and the hopper attached to the mounting frame. The hopper does not swing, and the hopper tilts in the left-right direction around the middle, so the entire hopper does not swing, which may result in insufficient uniform spreading of fertilizer.

In addition, as in Japanese Utility Model Publication No. 38-20241, a storage tank for fertilizer seeds, etc. is suspended on a machine base via a bullet, and an unbalanced weight is attached to a rotating body for taking in power installed in the storage tank. However, this conventional structure requires a separate drive source to drive the rotating body because it is not an attachment attached to the tractor, and the storage tank is suspended by multiple ammunition. As a result, the amount of cargo that can be loaded into the storage tank is limited, and in practice, heavy items such as soil cannot be put in, and only light seeds or small amounts of fertilizer can be put in.

The structure of the rocking mechanism is also disclosed in Japanese Utility Model Application Publication No. 56-90859, but in this case, a rocking body with a small hole formed on the soil outlet side of the hopper is arranged so as to be horizontally rockable. However, the hopper does not swing, and if this were to be applied, a swinging body would have to be placed below the fertilizer dispersion hole, which would place restrictions on work performed with the bottom of the platform close to the field.

Furthermore, although a swinging mechanism is disclosed in Japanese Utility Model Application Publication No. 52-161924, this swinging mechanism is not provided independently on the connecting member connected to the three-point linkage type connecting mechanism, but rather is attached to the connecting member. Since the swinging mechanism is provided between the support plate and the support plate, the swinging mechanism is involved when the support plate is attached to and detached from the connecting member, and flexibility in attachment and detachment may be low.

[Means for Solving the Problems] The present invention aims to solve these disadvantages, and as shown in the accompanying drawings, a mounting frame is installed at the rear of the tractor 1 in the direction of travel by a three-point linkage type coupling mechanism 2. 10 are pivotally connected in a protruding state so as to be movable up and down, and soil or powdered or granular fertilizer 1 is attached to the mounting frame 10.
2 or an eccentric device in which a loading platform 9 capable of loading compost is connected, a plurality of fertilizer spreading holes 11 are formed in the bottom of the loading platform 9, and the loading platform 9 is driven by the power take-off shaft 17 of the tractor 1 to swing the loading platform 9; This tractor management work machine is characterized in that a swinging mechanism 4 comprising a weight ring 16 is provided on the mounting frame 10.

[Embodiment] Figs. 1 to 3 show an embodiment of the present invention, in which the management work machine 3 of this embodiment is a fertilizer spreading device.

The coupling mechanism 2 includes lower links 5 on both left and right sides of the lower part of the rear of the tractor 1, upper links 6 in the middle part, hydraulic swing arms 7 on both left and right sides of the upper part, and swing arms 7.
and the middle of the lower link 5.
The management work machine is connected at three points, the tips of the lower link 5 and the upper link 6.

This management work machine 3 consists of a loading platform 9 and a mounting frame 10. A fertilizer spreading hole 11 is formed at the bottom of the loading platform 9, and soil, powder, or granular fertilizer 12 is placed inside the loading platform 9.
Alternatively, compost is loaded.

Further, the swinging mechanism 4 of this embodiment has the above-mentioned mounting frame 1.
0, two bearing plates 13 are fixed with bolts 14, a rotating shaft 15 is mounted on these bearing plates 13, an eccentric weight ring 16 is fixed to this rotating shaft 15, and this rotating shaft 15 is connected to the power source of the tractor 1. It rotates from the take-out shaft 17 via the universal joint 18, and due to the eccentric unbalance effect caused by this, the mounting frame 10 is caused to swing, thereby causing the entire mounting frame 10 and the loading platform 9 to swing. It is.

Further, although not shown in the drawings, the fertilizer spreading hole 11 is configured to be openable, closed, and open-adjustable.

Since this embodiment has the above configuration, the tractor 1
While moving forward, the fertilizer 12 in the loading platform 9 is spread through the fertilizer spreading hole 1.
When spraying by dropping from 1, the loading platform 9 and the mounting frame 10
Due to the unbalanced action of the eccentric weight ring 16, the entire structure is subjected to an oscillating motion, thereby scattering the fertilizer 12, thereby making it possible to spread the fertilizer 12 uniformly.

Incidentally, since there are cases where the oscillating motion is not necessary, it is desirable that the oscillating mechanism 4 can be easily attached and detached.

[Effects of the Invention] As described above, the present invention pivots and connects the mounting frame 10 to the rear part of the tractor 1 in the traveling direction by the three-point link type coupling mechanism 2 in a protruding state so as to be movable up and down.
A loading platform 9 capable of loading soil, powder, granular fertilizer 12, or compost is connected to the loading platform 9, a plurality of fertilizer spreading holes 11 are formed at the bottom of the loading platform 9, and the loading platform is driven by the power extraction shaft 17 of the tractor 1. Since the oscillation mechanism 4 consisting of the eccentric weight ring 16 for oscillating the oscillation mechanism 9 is provided on the mounting frame 10, the oscillation mechanism 4, which is connected to the tractor 1, is connected to the power extraction shaft 1 of the tractor 1.
7 and is driven by the oscillating mechanism 4 provided on the mounting frame 10, the loading platform 9 can be used as an attachment mounted on a tractor, and the loading platform 9 is connected to the three-point link type coupling mechanism 2. Since it is connected to the mounting frame 10 which is connected to the mounting frame 10, the allowable load capacity can be increased, and since the loading platform 9 can be moved up and down, it can be set at any position.Furthermore, since the loading platform 9 is connected to the mounting frame 10, the mounting frame 10
And, the entire loading platform 9 can be shaken, so that, for example, when the loading platform 9 is tilted backwards and the piled soil is slid backward on the soil conveying platform and discharged, When storing powdered or granular fertilizer in the loading platform 9 and dropping it through the fertilizer spreading hole 11 formed at the bottom of the loading platform 9 to spread the fertilizer 12, or when storing compost on the loading platform 9 and using the loading platform. 9 is held in a backward tilted state, and when spreading compost by slightly sliding it down on the bottom surface of the loading platform 9, the mounting frame 10 and the entire loading platform 9 can be rocked, and only the loading platform 9 can be rocked. In this case, a mechanism is required between the mounting frame 10 and the loading platform 9 to allow only the loading platform 9 to swing.
In this case, a structure in which the mounting frame 10 and the loading platform 9 are integrally connected can be adopted, and the structure can be simplified accordingly, and since the swinging mechanism 4 is provided in the mounting frame 10, The oscillating mechanism 4 is not involved in attaching and detaching the mounting frame 10 and the loading platform 9, which increases the flexibility of attaching and detaching the mounting frame 10 and the loading platform 9.
0 and the entire loading platform 9 swing in a cantilevered state with the pivot end located near the rear of the tractor 1, where the base side of the three-point linkage type coupling mechanism 2 is connected, resulting in a good vibration state. Since the vibration mechanism 4 is composed of an eccentric weight ring 16, it can be made to have a simpler structure, and the entire mounting frame 10 and loading platform 9 can be vibrated by the eccentric unbalance action, thereby obtaining good vibration for fertilizer spreading. This makes it possible to discharge loaded soil and uniformly spread fertilizer 12 and compost, and it can be used for multiple purposes as a tractor attachment.

As described above, the intended purpose can be fully achieved.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is an overall side view, FIG. 2 is a longitudinal sectional view of the main part thereof, and FIG. 3 is a front view of the main part. DESCRIPTION OF SYMBOLS 1... Tractor, 2... Three-point link type connection mechanism, 4... Oscillating mechanism, 9... Loading platform, 10... Mounting frame, 11... Fertilizer spreading hole, 12... Fertilizer, 16...
...Eccentric weight ring, 17...Power take-off shaft.

Claims (1)

[Claims] 1. A mounting frame is pivotally connected to the rear of the tractor in the direction of travel by a three-point linkage mechanism in a protruding state so as to be movable up and down, and a loading platform capable of loading soil, powder, granular fertilizer, or compost is connected to the mounting frame. , a plurality of fertilizer spreading holes are formed in the bottom of the loading platform, and a swinging mechanism comprising an eccentric weight wheel that is driven by a power extraction shaft of the tractor to swing the loading platform is provided in the mounting frame. A management work machine for tractors featuring: