JPS6310650Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a work implement mounting device used when mounting a work implement on a moving vehicle such as a tractor.

In order to facilitate handling when attaching a working machine to a moving vehicle such as a tractor via a three-point linkage mechanism, a male mounting frame with a mountain shape and a mountain-shaped male mounting frame into which this frame can be freely fitted and removed from the lower side are used. There is a mounting device that utilizes a female mounting frame. However, in the past, the male mounting frame was provided on the three-point linkage mechanism, and the female mounting frame was provided on the work machine, so if the work machine does not have a female mounting frame, the male mounting frame must be removed. Therefore, at that time, it became difficult to install the working machine. Furthermore, when mounting a work implement on a tractor in an offset manner, it is not possible to directly transmit power from the front and rear PTO shafts of the tractor to the driven part of the work implement. Normally, power is transmitted through these devices. For this reason, each working machine must be provided with a relay means, which has the drawback of making the structure of the working machine complicated and large.

The present invention was provided for the purpose of solving these conventional problems, and its feature is that a mountain is mounted on one of the three-point linkage mechanism and the support frame on the moving vehicle side. The work equipment can be attached to and detached from the left and right ends of the support frame, respectively. A work equipment mounting part is provided that can be freely attached, and a power relay device that relays power from the moving vehicle is provided at the center of the support frame in the left-right direction. It is provided with a pair of left and right output shafts to be driven, and each of the output shafts projects toward the work implement mounting portion.

Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments. In FIGS. 1 and 2, 1 is a tractor;
2 is its front wheel. 3 is a front-mounted three-point link mechanism, and has a top link 5 connected to the upright frame 4 at the front end of the tractor 1, and a pair of left and right lower links 6 pivotally supported on both sides of the front end of the tractor 1. The lower link 6 can be raised and lowered by a lift cylinder 9 via a lift rod 7 and a lift arm 8. A mountain-shaped male mounting frame 1 is attached to the front end of the three-point linkage mechanism 3.
The male mounting frame 10 is removably fitted from below to the female mounting frame 11 assembled in a mountain shape, and is fixed by a fixing means not shown. That is, as shown in FIGS. 3 and 4, the male mounting frame 10 is made up of two rectangular tubes fixed in a mountain shape, and has a guide ring 12 at the upper end, a top link bracket 13 at the upper end, A pair of lower link brackets 14 are provided at the lower left and right ends, respectively.
A top link 5 is detachably attached to the top link bracket 13, and a lower link 6 is detachably attached to the lower link bracket 14 by attachment pins 15 and 16, respectively. The female mounting frame 11 is made by fixing a pair of channel materials in a mountain shape.
A top mast 18 erected on a support frame 17 is connected to the upper end of the support frame 17, and a pair of left and right mounting brackets 19 extending rearward from the support frame 17 are fixed to the left and right lower ends. The support frame 17 is, for example, a flat rectangular cylinder arranged laterally, and a pair of left and right brackets 20 are provided on the lower side surface of the center in the lateral direction.
A power relay device 21 is attached thereto, and both left and right ends are work implement mounting portions 23 provided with through holes 22 in the front and back direction. The power relay device 21 has an input shaft 24 that projects rearward and an output shaft 25 that projects both left and right sides, and the input shaft 24 is connected to the universal joint shaft 2.
6, the output shafts 25 are removably connected to the PTO shaft 28 of the front power take-off device 27 mounted on the front end of the tractor 1, and each output shaft 25 can be operated in forward and reverse directions by a gear mechanism and clutch inside the power relay device 21. Can be intermittent. A support shaft 29 and a bracket 3 in the front-rear direction are attached to one of the work equipment mounting portions 23 of the support frame 17.
An elevating arm 31 is removably pivoted through the support frame 17, and the elevating arm 31 can be moved up and down around the support shaft 29 by a hydraulic cylinder 33 interposed between it and a bracket 32 on the support frame 17. 34 is a rotary machine, and a rotary machine frame 35 also serves as the main cover.
, a claw shaft 37 supported between the side plates 36 at both ends of the rotary machine frame 35, and a rear flat cover that is pivotally connected to the rear side of the rotary machine frame 35 and is lowered downward by the lowering mechanism. 38 and a cage-shaped grading wheel 39 arranged at the rear, and is attached to the lifting arm 31 so as to be laterally separated from the tractor 1. The claw shaft 37 has a large number of tilling claws 4
0, and is operatively connected to one output shaft 25 via a universal joint shaft 41.

In the above configuration, when the rotary 34 is offset mounted in front of the tractor 1, for example, the male mounting frame 10 and the female mounting frame 1 are attached to the three-point link mechanism 3.
A support frame 17 is mounted through the support frame 17, and a bracket 30 of the lifting arm 31 is pivotally connected to one of the work equipment mounting portions 23 of the support frame 17 via a support shaft 29, and a hydraulic cylinder 33 and the bracket are connected together. 30
Connect with a connecting pin. Then, the output shaft 25 of the power relay device 21 and the claw shaft 37 are connected to the universal joint shaft 41.
You can connect it with Alternatively, a procedure may be adopted in which the support frame 17 is connected to the lifting arm 31, and then the male type attachment frame 10 is fitted into the female type attachment frame 11 and connected. In any case, by connecting the support frame 17 to the three-point linkage mechanism 3 via the male mounting frame 10 and the female mounting frame 11, and mounting the rotary 34 on this support frame 17, handling when the rotary is mounted is extremely easy. The power relay device 2 can be attached to the support frame 17 easily.
5, the rotary 34 side only needs to have the minimum necessary configuration and can be made smaller.

In this case, the claw shaft 37 is powered by the power from the PTO shaft 28 of the front power take-off device 27 of the tractor 1 to move the universal joint shaft 26, input shaft 24, output shaft 25,
It is driven in the direction of arrow a through the universal joint shaft 41, and the field is tilled and crushed by the rotation of the tilling claws 40 at that time, and then compacted and leveled by the compaction leveling wheel 39. Also, if the hydraulic cylinder 33 is contracted,
The rotary 34 is in an upright state around the support shaft 29.

The rotary 34 may be attached to the work implement attachment portion 23 on the opposite side of the support frame 17, and the work implement may be fastened to the work implement attachment portion 23 with bolts or the like. Furthermore, the male attachment frame 10 may be attached to the support frame 17 and the female attachment frame 11 may be attached to the three-point link mechanism 3. The working machine may be a mower or the like.

In this invention, the support frame is attached to the three-point linkage mechanism via the male and female type mounting frame, and the work equipment is attached to the work equipment attachment part of this support frame. Even various working machines that do not have a frame can be easily attached and detached. Furthermore, since the support frame is equipped with a power relay device, the working machine side can be made smaller and power can be quickly transmitted.

Furthermore, since the work implement mounting portions are provided on both the left and right ends of the support frame, it is possible to mount the work implement in an offset state on either of the left and right ends of the support frame depending on the work situation.

In addition, if the work equipment is simply mounted offset to the left or right depending on the work situation, power transmission to the work equipment will be a problem, but with this invention, a pair of left and right output shafts of the power relay device are attached to the work equipment. Since the power relay device is installed in the center of the support frame in the left and right direction, it is possible to easily and reliably transmit power. There are also advantages such as being able to prevent the left and right balance from being significantly disrupted even when worn.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a front view, Fig. 2 is a partially cutaway side view, Fig. 3 is an enlarged sectional view of the main part, and Fig. 4 is a view taken in the direction of - arrow in Fig. 3. It is a diagram. 1... Tractor, 3... Three-point linkage mechanism, 10
...Male mounting frame, 11 Female mounting frame, 17...Support frame, 21...Power relay device, 23...Work equipment mounting section, 25...Output shaft, 34...Rotary.

Claims (1)

[Scope of Claim for Utility Model Registration] A mountain-shaped male mounting frame on one side of a three-point link mechanism and a support frame on the moving vehicle side, and a mountain-shaped male mounting frame that is removably fitted on the other side. A work equipment mounting part is provided on each of the left and right ends of the support frame to removably mount the work equipment, and a work equipment mounting part is provided at the center of the support frame in the left and right direction on the moving vehicle side. A power relay device is provided for relaying power from the work equipment, and the power relay device includes an input shaft and a pair of left and right output shafts driven via the input shaft, each of the output shafts being connected to the work equipment mounting portion. A work machine mounting device characterized in that each of the work machine mounting devices protrudes toward the other direction.