KR200170455Y1 - Cutting machine for cutting or crushing weed or tree branches - Google Patents

Abstract

The present invention is to change the constant rotational force generated in the driving device, such as cultivator or tractor, which is an agricultural machine to the rotational force suitable for the weeding characteristics and to the rotational force suitable for the pruning wood shredding characteristics, so that the weeding and pruning of the pruning wood in one agricultural work machine The present invention relates to a weeding and weaving plant that combines weeding and pruning. According to the present invention, a number of revolutions per minute is generated through a speed changer that generates a number of revolutions suitable for the purpose of the tractor's power take-off shaft. By adjusting at least two tasks with one work machine, it is possible to reduce the working time and double the work efficiency by allowing the speed adjustment work to be done at the same time by simple operation without having to purchase a plurality of expensive work machines. Can be.

Description

Cutting machine for cutting or crushing weed or tree branches}

The present invention relates to a weeding mower combined with both weeding and pruning. Especially, the number of revolutions per minute of the power take-off shaft of the tiller or tractor is changed to the number of revolutions suitable for the weeding properties and the speed suitable for pruning of the pruning wood. The present invention relates to a weeding and pruning combined lawn mower that allows for the operation of crushing wood on a single agricultural work machine.

Recently, due to the development of agricultural technology, the spread of agricultural machinery, which greatly reduces the labor force of agricultural workers who grow crops or fruit trees, is widely used.

In the case of agricultural machinery is mostly made by a drive device for generating power, for example, a combination of a cultivator body, a tractor body and a cultivator or a tractor, a work machine that performs a variety of operations in the recent rapid spread.

This variety of work machines are developed because of the wide variety of farming operations. For example, if you look at an orchard work machine used for orchard work, a weeding machine that removes weeds growing around the fruit, narrow and deep Representatives are working machines for carrying out the work required for effective fruit growing, such as excavators that form deep bones and rotary soils. In addition, various working machines have been developed to meet specific working purposes.

Recently, the pruning tree shredder which reduced the labor force and shredded pruning tree became necessary manure for the soil by crushing the pruning tree, which is pruned from the fruit tree and fell to the ground, instead of being picked up and removed by the worker. have.

However, conventional mowers and vestibular shredders have the function of weeding and shredding by rotating the rotary blades, so that weeding work and pruning wood shredding work cannot be performed in one working machine, despite the very similar function and structure. In order to crush the pruning tree, both the mower and the pruning crusher must be purchased, and after weeding, the mower must be removed from the cultivator. There is a problem that is greatly increased.

The problem is that the weeding operation is performed by changing the rotational speed of the power take-off shaft such as the cultivator to the rotational speed suitable for the weeder, and the rotational speed of the power take-off shaft to the rotational speed suitable for the pruning wood shredder. By crushing the entire event, but occurs because the operator can not change the rotational speed in the mower or the entire event crusher itself.

Accordingly, the present invention has been made in view of such a conventional problem, and an object of the present invention is to provide a constant rotational speed taken out of a drive device such as a cultivator or a tractor at least two or more agricultural work, for example, weeding work. And rotational speeds suitable for carrying out pruning of lumber.

In addition, another object of the present invention is to be able to change the rotational speed taken out from the drive by a single operation.

Another object of the present invention will become more apparent from the detailed description of the present invention to be described later.

1 is a lawnmower combined weeding and pruning crushed according to the present invention

Figure 2 is an exploded perspective view of the rotation speed conversion gear box according to the present invention.

Figure 3 is a partially exploded perspective view of the rotation speed converting device when performing pruning wood shredding work according to the present invention.

Figure 4 is a partially exploded perspective view of the rotation speed conversion device when performing the weeding operation according to the present invention.

5 is a combined state showing that the cultivator according to the present invention equipped with a weed and pruning crushed combine mowing device according to the present invention in one embodiment according to the present invention.

In order to achieve the object of the present invention, weeding and vestibular crushing combine mowing machine is a farm work machine that performs the operation by a drive device for rotating the power take-off shaft at a predetermined number of revolutions, the rotating shaft is supported by the rotating shaft is formed The mowing body body, and the bearing body installed in the mowing body body so that the rotating shaft is rotated, the power transmission shaft which is supported by the bearing body to transfer the power of the power take-off shaft to the rotating shaft, the pulleys and pulleys installed on the power transmission shaft and the rotating shaft with a predetermined tension A power transmission means including a belt for transmitting power, and a first gear detachably coupled to any one of the power take-off shaft and the power transmission shaft, the power being received from the first gear and having less teeth than the first gear. The second gear, the first and the second gear, which are detachably coupled to the other one of the shaft and the power transmission shaft The rotating shaft rotation speed converting means which consists of a gear cover is included.

Hereinafter, with reference to the accompanying drawings, the herbicide and vestibular crushed mowing combine according to the present invention is as follows.

1 or 5 attached to one embodiment of the lawn mower 600 combines the weeding and pruning crushed according to the present invention is shown.

Referring to the accompanying drawings, the weeding and all-wood shredding combine mower 600 is composed of a lawn mower body 100, the body support wheel 200, the power transmission device 300 and the rotation converter 400 as a whole do.

More specifically, the lawn mower body 100 supports both ends of the rotary shaft 20 and the rotary shaft 20, each of which has a plurality of mowing blades 10 suitable for weeding and pruning, so as to be rotatable with minimal friction. The cover 30 is configured to prevent the weeding and crushed pruning of wood from scattering.

The power transmission device 300 is coupled to the rotating shaft 20 of the lawn mower body 100.

The power transmission device 300 includes a pair of pulleys 310 (not shown), a power transmission belt 320, and a power transmission shaft 330, and another transmission gear box is provided on the power transmission shaft 330. 340 may be optionally installed.

The power transmission device 300 will be described in more detail with reference to FIGS. 1, 3, and 4 as follows.

One of the pair of pulleys 310 (not shown) is integrally installed at the end of the rotary shaft 20 of the lawn mower body 100, driven pulley (not shown) installed at the end of the rotary shaft 20 To be defined as the pulley, a detailed description of the driving pulley 310 for transmitting power to the driven pulley will be described later.

Meanwhile, referring to FIG. 3 or 4, more specifically, a bearing body having a bushing 350 provided with a bearing (not shown) on the upper surface of the cover 30 of the lawn mower body 100 to reduce friction. 352 is installed, the power transmission shaft 330 is inserted into the bushing 350 is rotatably supported.

At this time, the bushing 350 is installed at a predetermined position of the lawn mower body 100 so that the power transmission shaft 330 is parallel to the rotating shaft 20 of the lawn mower body 100, the rotation conversion device 400 in the bearing body The fixed shaft 355 is provided to be installed.

In this way, at one end of the power transmission shaft 330 supported by the bushing 350, a drive pulley 310 is installed so that the power transmission belt 320 can be caught with a predetermined tension in parallel with the driven pulley (not shown) described above. do.

At the other end of the power transmission shaft 330 in which the driving pulley 310 is installed, a rotation speed converting device 400 which is a core part of the present invention is installed.

A more specific configuration of the rotation speed conversion device 400 will be described with reference to FIG. 2.

The rotation speed converting apparatus 400 is composed of an upper cover 410, a lower cover 420, two sprocket wheels 430 and 440, a power transmission chain 450, and a fastening bolt 460.

More specifically, the two sprocket wheels 430 and 440 are formed to have different diameters, so that a sprocket wheel having a large diameter is defined as a first sprocket wheel 440 and a sprocket wheel having a small diameter is defined as a second sprocket wheel. It is defined as (430).

At the center of the first and second sprocket wheels 440 and 430 has a cylindrical shape with a diameter larger than that of the power transmission shaft 430 and has a cylindrical shape at both centers of the first and second sprocket wheels 440 and 430 and protrudes at a predetermined height. Sprocket wheel support parts 435 and 445 are formed, and through holes 437 and 447 are formed in the center of the sprocket wheel support parts 435 and 445 so that the power transmission shaft 330 is properly inserted.

The first and second sprocket wheels 440 and 430 having such a shape are seated on the lower cover 420 with the power transmission chain 450 coupled thereto. The second sprocket wheels 440 and 430 have a shape that can be accommodated therein.

In particular, the sprocket wheel support parts 435 and 445 are inserted into the lower cover 420 so that the first and second sprocket wheels 440 and 430 are not separated from the designated positions. Holes 425 and 427 are formed.

The upper cover 410 is coupled to the lower cover 420 formed as described above, and the inside of the power transmission chain 450 of the lower cover 420 so that the upper cover 410 is coupled to the lower cover 420. Two fastening bosses 422 having a predetermined interval therebetween and having female threads on the inner circumferential surface thereof are formed to protrude, and the bearing body 352 shown in FIG. 3 or 4 is provided between the fastening bosses 422. The fixed shaft coupling sleeve 424 penetrating the lower cover is installed to be detachably coupled to the fixed shaft 355 formed in the.

At this time, the distance between the center of the fixed shaft coupling sleeve 424 from the center of the two insertion holes (425, 427) formed in the lower cover 420 should be formed to be the same.

The lower cover 420 formed as described above has the same shape as the plane of the lower cover 420 and is fastened to the lower cover 420 by the fastening boss 422 and the fixed shaft coupling sleeve 424. The supported upper cover 410 is coupled and then fastened and fixed by the bolt 460 by the fastening boss 422.

Of course, insertion holes 417 and 415 in which the first and second sprocket wheel supports 445 and 435 are inserted should be formed in the upper cover 410 so that the first and second sprocket wheels 440 and 430 are not separated from the designated positions.

Any one of the through holes 447 and 437 formed in the center of the first and second sprocket wheels 440 and 430 installed in the rotation speed converting apparatus 400 configured as described above may have a rotation slip with the power transmission shaft 330 described above. It is inserted detachably so as not to occur, and inserted into the other one of the through-holes so that rotation slip does not occur in the power take-off shaft 500 of the tiller or tractor, and the fixed shaft coupling sleeve 424 of the power transmission device 300 Removably coupled to the fixed shaft 355 formed in the bearing body 352.

Referring to the accompanying drawings, the process of performing weed removal after vestibular crushing by the herbicide and vestibular crushing combine mowing according to the present invention configured as described above is as follows.

In order to crush pruning trees, the cutting blade 10 shown in FIG. 1 should be rotated at least 2000 rpm or more, and the operator can rotate the cutting blade 10 as shown in FIG. The second sprocket wheel 430 of the rotation speed converter 400 shown in FIG. 2 is mounted on the power transmission shaft 330 of the power transmission device 300 formed in the lawn mower body 100, and the first sprocket wheel 440 is coupled to the power take-off shaft 500 of the tiller or tractor, and the fixed shaft coupling sleeve 424 is firmly coupled to the fixed shaft 355.

Then, the operator is to extract the power from the power take-off shaft 500 of the tiller or tractor to output a predetermined number of revolutions from the power take-off shaft 500, at this time, the power take-off shaft 500 is rotated and at the same time the first sprocket As the wheel 440 is also rotated, power is transmitted to the power transmission chain 450 to rotate the second sprocket wheel 430.

At this time, the diameter of the second sprocket wheel 430 is smaller than the diameter of the first sprocket wheel 440 and the number of gear teeth is also small, the number of revolutions per minute of the power transmission shaft 330 coupled to the second sprocket wheel 430 is a tiller Or more than the revolutions per minute in the power take-off shaft 500 of the tractor.

As a result, the drive pulley 310 of the power transmission shaft 330 shown in FIG. 1 rotates corresponding to the rotation speed of the power transmission shaft 330, and the power transmission belt ( As the driven pulley (not shown) is rotated by the power transmission of 320, the cutting blade blade 10 also has the same speed as the rotating shaft 20 while rotating the rotary shaft 20 of the lawn mower body 100 at a high speed of about 2000 rmp or more. To rotate.

In this state, as the tiller or tractor passes through the pruning tree, the pruning tree is crushed to a size of about 3 cm or less by the high-speed rotating mowing blade 10.

After all the pruning wood crushing work is finished through this process, the worker takes out the power transmission shaft 330 and power take-off of the tiller or tractor as shown in FIG. 4 to perform the weeding operation. After detaching from the shaft 500, the first sprocket wheel 440 of the rotation speed converter 400 shown in FIG. 2 is coupled to the power transmission shaft 330 of the lawn mower body 100, and the second sprocket wheel 430 is firmly coupled to the power take-off 500 of the tiller or tractor, and the fixed shaft coupling sleeve 424 is coupled to the fixed shaft 355.

Then, when the operator is to generate a rotational force from the power take-off shaft 500 of the tiller or tractor, the second sprocket wheel 430 is rotated by the rotation of the power take-off shaft 500 by the power transmission chain 450 The first sprocket wheel 440 is rotated by the transmitted power.

At this time, since the first sprocket wheel 440 has a larger diameter than the second sprocket wheel 430, the revolutions per minute lower than the revolutions per minute generated by the power take-off shaft 500, for example, 2000 rpm or less suitable for weeding operations. The rotational speed of the power take-off shaft 500 is again driven to the driven pulley (not shown)-power transmission belt 320-drive pulley 310-the rotating shaft 20 is transmitted to the rotating shaft 20 Rotate the mowing blade 10 formed in the).

At this time, the number of revolutions per minute of the lawn mower blade 10 in the state as shown in Figure 4 is significantly lower than the number of revolutions per minute of the lawn mower blade 10 in the state as shown in Figure 3, that is particularly suitable for weeding operation Rotate by rotation

In this state, the operator can perform both the weeding operation and the pruning of the pruning tree by simple operation by performing a weeding operation while advancing the tiller or tractor to the position for weeding.

As described in detail above, at least two engines are controlled by rotating the gears per minute through a speed change gear box which generates a rotational speed suitable for the purpose of the rotational speed generated at the power take-off shaft of the tiller or tractor. By performing more than two operations, it is possible to reduce the working time and double the work efficiency by allowing the rotation speed adjustment operation to be performed at once without having to purchase a plurality of expensive work machines at all.

Claims (5)

In the agricultural work machine performing the work by a drive device for rotating the power take-off shaft at a predetermined revolutions, A lawn mower body on which a rotating shaft on which a rotary blade is formed is supported; A bearing body installed on the lawn mower body so that the rotating shaft is rotated, a power transmission shaft which is supported by the bearing body to transfer the power of the power take-off shaft to the rotating shaft, and a predetermined tension on the power transmission shaft and the pulleys and pulleys installed on the rotating shaft; A power transmission means comprising a power transmission belt spanning the air; A first gear detachably coupled to any one of the power take-off shaft and the power transmission shaft; the other one of the power take-off shaft and the power transmission shaft, the power being transmitted from the first gear and having a smaller number of teeth than the first gear; Weeding and pruning combined lawn mowers, characterized in that it comprises a second shaft coupled to be detachably coupled to the first, the gear cover for receiving the first and second gears. The rotation shaft of claim 1, wherein the first gear of the rotation shaft rotation speed converting means is coupled to the power transmission shaft, and the second gear is coupled to the power extraction shaft so that the rotation shaft is formed with the rotation of the power extraction shaft. Weeding and pruning combined lawn mowers, characterized in that rotated at a lower speed than the number. The rotation shaft of claim 1, wherein the first gear of the rotation shaft rotation speed converting means is coupled to the power take-off shaft, and the second gear is coupled to the power transmission shaft, so that the rotation shaft on which the rotary blade is formed rotates the power take-off shaft. Weeding and pruning combined lawn mowers, characterized in that rotated faster than the number. The lawn mower according to claim 2 or 3, wherein the first and second gears are sprocket wheels, and the sprocket wheels are powered by a power transmission chain. According to claim 2 or 3, wherein the bearing body is a gear cover fixed shaft is formed so that the gear cover is detachable, the gear cover is characterized in that the coupling sleeve is formed to be detachable to the gear cover fixed shaft. Combine mowers for weeding and pruning.