KR820001063B1 - Power-driven rotary ground working implement - Google Patents

Abstract

A soil working M/C has a rotor which can turn about a horizontal axis. There is a drive transmission for the working unit, which also has a covering head. Part of the head (4) is in the form of a movable flap (22) which can be fixed in a position in which the flap is in contact with the ground at a distance behind the peripheral region of the working unit (3). The frame and the movable flap have engagement regions (30, 31). The holding device for the movable flap comprises a holding strut (29) which engages releasably in the engagement region.

Description

Rotary Drive Land Machine

1 shows a basic embodiment of the present invention, and is a side view when the working machine separated from the tractor is placed in an upright position.

2 is a partially omitted planar cross-sectional view when the cover device is engaged with the tilling frame as a locking zone.

3 is a front perspective view of yet another embodiment when the working machine separated from the tractor is placed in an upright position.

4 is a rear perspective view thereof.

5 is a side view of the movable cover body of FIG.

6 is an abbreviated plan view of FIG.

FIG. 7 is a side view showing a fixed aspect of the movable cover body during tillage.

8 is a side view showing a fixed aspect of the movable cover body when replacing the ground work body.

FIG. 9 is a side view of a working machine mounted on a tractor.

FIG. 10 is an enlarged sectional view showing a part of local means of FIG. 9 in detail. FIG.

11 is a detailed side view of the ground portion of the movable cover of FIG. 9;

12 is a sectional view of the main portion showing an example of an electric system path for a work machine.

FIG. 13 is a half front view of arrow 12 in FIG. 12; FIG.

FIG. 14 is a cross-sectional view of the arrow of FIG.

The present invention relates to a ground work machine, and more particularly, to a rotation driven land work machine in which a ground work body acting on soil is driven by horizontal axis rotation.

A drive type tillage machine, which is an example of a rotary drive type land machine, is widely used as a work machine that can be attached to a power vehicle such as a tractor and can simultaneously carry out tillage and plowing soil.

This machine is normally followed by the instrument to set the working depth and the weight burden, but in the form of this bag, a pair of right and left gauge wheels are installed in front of the rotary tiller, It is usually adopted to install a pair of locking wheels at the rear of the unit.

These instrument devices are useful as they are, but a common problem is that the ground points are strictly contacted, which leads to relatively large droves on farms, and in particular, wheels move along soils such as wetlands and limbs. It is not a big problem.

In view of this, it has been proposed and actually provided a stationary grounding device formed of a skid instead of the instrument wheel device in the stationary section of the rotary tiller.

By the way, since the conventional stable grounding device moves on the farm, it is usually circular arc shape of which the front-back of the folding body longitudinal direction was curved upward, and the working machine is three points of a power vehicle. When disconnected from a linking device, such as a link, the center of gravity of the work machine is conducted forward or backward. If the work machine does so, it is not only troublesome to connect the work machine, but also heavy work and damage to the work machine. In addition, when the tractor is operated by towing a tractor-type cultivator, if the position is adjusted by the hydraulic control device equipped with the tractor, the instrument device or the safety grounding device is practically unnecessary for the work machine. If you remove it from the tractor, you will fall.

In order to alleviate this inconvenience, a separate stand must be prepared or appropriate supporting means must be devised, which makes the device huge and uneconomical in terms of cost. Removal and handling were cumbersome and dangerous.

The present invention, including a composition tillage machine, in other words, in the work machine for the soil rotates in the horizontal axis rotation, the cover device to cover the rotating ground work body installed so as to move freely up and down with respect to the work frame, and the work body outer peripheral part ( It is an object of the present invention to provide a work machine that constitutes a stand apparatus capable of placing a work machine in an upright body in cooperation with an external worker. Based on this, even if the work machine with the stable earthing device or the instrument wheel device and the stable earthing device device in the stationary work of the earth work body can be placed, the work machine can be placed in an upright position even without a stand member. In addition, the work machine can be easily connected and disconnected, as well as the storage of the work machine.

Still another object of the present invention is to attach and detach the locking mechanism to the work frame and the cover device, each of which can be selectively selected and maintained in a grounding position of the cover device covering the rotating ground work body and a large open position. When this material is installed and the cover device is kept open, the work space is large and easy for the management of rotating ground work, for example, claw replacement, removal of attached soil or foreign matter. It is to provide a device that can accurately and accurately.

In order to achieve the above object, the present invention is characterized by a work base, a rotation-supporting work body freely rotating on a horizontal axis, and a transmission means for the work body, and the rotation. In the rotation drive type land work machine including a cover device covering the ground work body, the outer periphery of the rotating land work body and the movable cover of the cover device are separated and grounded back and forth, and the work body and the cover body cooperate with each other. In this case, the fixing means is provided on the movable cover to enable the stand function.

In addition, according to the embodiment of the present invention, by forming the ground portion of the cover device, the ground portion and the rear ground portion are all formed, by making a space portion that is not grounded between both ground portions, the rear ground portion is installed so that the position is lower than the ground portion, An apparatus is illustrated that can stop the tilled surface evenly and evenly.

In the embodiment of the present invention, the up and down motion of the cover device connects the cover with a local color to the work frame, and at the same time creates a buffer in a part of the color, thereby making the cover up and down. A device that prevents the carbache and its local color from being damaged or deformed by mitigating it even when it is vibrated and also by reducing the external force of the lumps that collide during the operation is exemplified.

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

As an example of the rotary drive type land work machine, reference numeral 1 denotes the whole work machine in the case where the tillage tiller is separated from the tractor and settled.

The work machine 1 is composed of a work piece 2 and a ground work piece 3 which is temporarily installed horizontally on the lower part of the work piece 2 and a cover device 4 covering the work piece 3. In this embodiment, the transmission means for the work piece illustrates a side drive type. The work frame 2 extends toward both sides in the width direction outward from the transmission case 6 with the power import shaft 5 installed in the upper portion of the center thereof, and the transmission case 6. Of the complete body 7 and the shaft-driven case 8 which is fixed to the outer end face of one body 7 and extends downward and the other body, although not shown in FIGS. The side plate is fixed to the outer end surface and extends downward, and the transmission case 8 and the side plate have bearings in the lower opposing parts, respectively. The work frame 2 is installed in the middle of the longitudinal direction of the top mast 9 and the pair of left and right arms 7, which are supported by the transmission case 6 again, and protrude forward. (10) and a pair of left and right sandpaper support links (11) connecting the respective connection brackets (10) and the top mast (9), the top link (12) on the top of the top mast (9) ) Is a hole structure in the embodiment, and a lower link connection portion 13 is provided in the connection bracket 10 in the embodiment.

14 is a safety grounding device, and in the embodiment shown in FIG. 1, it is provided with a pair of front and rear supports 15 at the lower part of the side transmission case 8 which is one side station of the work part 3. The front and rear of the member 14A is a plate member having a semicircular arc curved upward and having a required ground width, and is located outside the radial direction of the work part 3.

The earth work part 3 is a rotating work body 18 by a claw which is detachably attached to the rotating shaft 16 and the bracket 17 fixed to the rotating shaft 16 by bolts and nuts. It is constructed and is provided in the bearing device which provided the both ends of the rotating shaft 16 to the side transmission case 8 and a side plate.

In addition, the workpiece 18 may be a rotating body such as a screw, a crew making a screw, a combination of a screw claw, a disk rotor, a cage rotor, a sire, and a weeding machine. Include.

Since the embodiment illustrates a side drive driving method as a transmission means, when the rotating power coming from the tractor PTO shaft out of the drawing is transmitted to the power import shaft 5, a bevel gear embedded in the central vibration case 6 is provided. Rolling body and shaft The work part 3 is driven by horizontal horizontal axis rotation via the rolling body or the gear rolling body built in the transmission case 8.

The cover device 4 is fixed to the support plate 8A and the side plate of the shaft transmission case 8 by fasteners 19 such as bolts and nuts, respectively, and mainly covers the rotation trajectory of the work unit 3. Movable cover 22 and main cover 20 and shaft drive case 8 in which the upper and lower motions are freely attached to the cover body 20 and the main cover body 20 with a plurality of refractive metal balls 21. ) Is formed of the side cover body (24) attached to the fasteners 23, such as bolts and nuts, in the drawing to prevent the tilled soil masses from scattering, colliding the tilled soil masses to break and stop. . The movable cover body 22 has its ground portion 25 in a curved form in the embodiment of FIG. 1, and the connecting portion 26 is mounted in the ground portion 25, and the yagra connector 26 and In the embodiment, the support sections 27 extending from the base 2 are connected as George color bodies 28 represented by link chains. The locking zone 29 is a means for fixing the cover device and the movable cover body 22, and in the preferred embodiment of the present invention, as illustrated in FIG. It is a so-called channel-type latching region formed by forming curvature portions 29B parallel to each other on both ends of the shaft, and the counting portion 29B is formed on the support plate 8A of the shaft transmission case 8. It is a material which is engraved with respect to the perforated locking part 30, and the other engaging part 29B is made from the pipe which was attached to the reinforcing rib 22A of the movable cover 22. As shown in FIG. It is a retaining material with respect to the locking part 31.

Therefore, when the engagement portion 29B of the engagement portion 29 is engaged with each of the engagement portions 30 and 31, the movable cover of the refractory material is moved to the refractive index portion 21 at the point. The sieve 22 is fixed with respect to the machine frame 2, and as shown in FIG. 1, the outer periphery of the work part 3, ie, the outer end of several rotating workpieces 18, is shown. ) And the grounding portion 25 of the movable cover 22 are separated from each other back and forth, respectively, and grounded. ), The outer periphery of the workpiece 18 and the grounding portion 25 cooperate with each other to stand in a standing posture.

Of course, the settled position shown in FIG. 1 is the center of the work machine 1 between the rotary work body 18 and the angular ground portion of the ground portion 25.

In addition, the work machine 1 is connected to the tractor by a three-point linkage device, and the work machine 1 is held in an elevated position by a device for lifting hydraulic pressure provided in the tractor. 보지), and as shown by an imaginary line in FIG. 1, the movable kava body 22 is held in engagement with the paper-making tool 29, so that the working part 3 The rear part is largely held open, which is advantageous in the management work of the work part 3.

3-11 illustrate another useful embodiment of the present invention. As illustrated in FIG. 9, the work machine 101 is towed with a three-point link 50 in the embodiment with respect to the tractor T. As shown in FIG. The vehicle body 51 of the tractor T is mounted with a device 52 for lifting hydraulic pressure including a pair of left and right lift arms 53.

In addition, the rear upper surface of the vehicle body 51 and a top link mounting device 54 are provided in the center portion of the vehicle width. In the embodiment, the mounting device 54 includes three mounting holes 55. It is established at intervals in this height direction.

The top link 56 of the three-point link 50 is a stretchable material made of a naza structure, and both ends of the material receiving portion are pinned to one of the mounting holes 55 of the mounting apparatus 54. ) And the pin body of the connecting portion 112 of the top mask 109. The left and right pairs of Lowa Links 57 of the three-point link 50 each have a material receiving portion at both ends, and the receiving portions at each end thereof are connected to the lower sides of the vehicle body 51 by pin bodies. And, the other end (연결) is connected to the connecting portion 113 of the work machine 101 in a pin body, the long-term direction midway of each of the furnace and the link 57 and each lift arm 53 is connected to the lift rod 580 It is.

As shown in FIGS. 3 and 4, the Lowa link connecting portion 113 is arranged in the middle of the length of the pair of left and right bodies 107 extending from the central transmission case 106. A connecting bracket 110 having a shape that is extended outwardly is provided in one piece, and a bolt fitting body 58 is opened to the bracket 110 so as to be detachable. Again, the connecting portion 113 is illustrated as a shaft structure in the embodiment shown in FIGS. 3 and 9, and it is possible to selectively mount the shaft 113A up, down, left, and right.

The central transmission case 106 shown in FIG. 3 and FIG. 4 has the Berbergia rolling element embedded therein, and the power import shaft 105 protrudes forward. Had). As illustrated in FIG. 9 with respect to the power import shaft 105, the power in the tractor PTO shaft 59 can be interlocked by opening the transmission 60.

As illustrated in FIG. 3 and FIG. 4, the shaft electric motor casing 108 and the side plate 61 are provided on the outer ends of the pair of left and right bodies 107 in a downward direction, and on the other arm 107 A transmission shaft (not shown) for interlocking the rolling elements in the center transmission case 106 and the rolling elements in the side transmission case 108 is incorporated.

As shown in FIG. 3, the rotary work unit 103 is formed between the rotary shaft 116 and the ground work body 118, and both ends of the rotary shaft 116 are supported by the water storage device 62. )do.

The stable grounding device 114 provided in the side station of the work part 103 is a side station of the work part 103, ie, the side transmission case 108 and the side frame in the examples of FIGS. 3 to 5 and 9. In the lower part of 61, the height adjustment apparatus 63 is provided in the Example and is provided.

That is, as shown in FIG. 5 and FIG. 9, front and rear brackets 64 and 65 are respectively provided in the height direction midway of the side transmission case 108 and the side frame 61, and the bracket 64 in front of each. And the fixed cover body 120 with the stud 66, and at the same time, the bracket 64 and the front support body 115A of the stable grounding body 114A are rotated as fasteners 67 as the fasteners 67, respectively. The lower part of the height adjusting body is connected to the rear support body 115B of the stable ground body by the fastener 69 by the rotation material.

In more detail in FIG. 5, the height adjuster 68 has a long hole 68A long in the height direction, and an uneven engagement portion 70 is formed along the long life direction of the long hole. have.

On the other hand, the screw shaft 71 is inserted into the rear bracket 65 at best, and the pipe shaft is inserted into the long hole 68A. The screw shaft 71 has a naked body 72. The handle 73 is formed integrally with the naked body 72. The 74 is loosely inserted into the screw shaft 71 by the engagement member, and the naked body 72 is opened by loosening the fastening of the handle 73 to engage the engagement portion 70. do.

Accordingly, each of the stable grounding bodies 114A of the pair of right and left stable grounding bodies 114 located in the radially inward direction of the work part 103 is the height adjusting device 63. In FIG. 9, it is a height adjustment material using the fastener 67 as a point.

The cover device 104 is a movable cover body 122 that is connected to the main cover body 120 fixed to the frame 102 and the refractive bracket 121 shown in FIG. In the embodiment shown in Figs. 3 to 11, the locking means for fixing the is provided on the side plate 61 side.

In Figs. 5 to 8, reference numeral 129 denotes a gripping region, and a pair of the gripping portions 129B parallel to each other in the main body portion 129A is refracted, and the rear bracket ( A locking portion 130 made of a pipe is provided on the upper portion of the upper portion 65, and a pair of front and rear locking portions 131A and 131B are provided in the same pipe structure on the rear surface of the movable cover body 122. ) Is a material for each locking portion 130, 131A and 131B, and as shown in FIGS. 5 and 6, the cover portion 129B of the locking portion 129 is carbache. When engaging with the succession part 131B of 122 and the engagement part 130 of the base side, the outer periphery part of the rotating workpiece 118 of the work part 103, and the ground part 125 of the kava body 122 are carried out. Even if each of the right and left pairs of stable grounding body devices 114 are grounded and separated from the ground, the work machine 101 is removed from the three-point link 50, and is placed in a standing position.

That is, the movable cover body 122 of the refractory material is fixed to the frame 102 as the locking zone 129, and cooperates with the work body 118 to form a stand apparatus of the work machine.

In addition, when the locking zone 129 is engaged with the front and rear locking portions 131A and 131B of the movable cover 122 as shown in FIG. 7, the movable cover 122 is compared with the main cover 120. It becomes a refraction material, and the movable cover body 122 becomes the shape hanged down by its own weight.

At this time, in one embodiment of FIG. 9, the tilling operation is underway, and the movable cover (122) is restricted by the George color body (128). In addition, when the engaging region 129 is engaged with the front locking portion 131A of the movable cover 122 and the locking portion 130 on the side of the frame 102 as shown in FIG. 8, the movable cover 122 is refracted. When the bracket 121 is held in the posture rising to the point, the work piece 101 is lifted and the work machine 101 is lifted with the posture shown in FIG. It is convenient for maintenance work such as replacement. In addition, in FIG. 5 thru | or FIG. 8, 75 is a locking zone bulge body, and the locking zone 129 was engaged with two of each locking part 130 (131A) and 131B. At this time, the bulging body 75 is inserted into the hole formed in the radial direction in the to-be-engaged part 129B.

In addition, in FIGS. 5 to 8, although the locking zone 129 is used as a dislocation material from the inside with respect to each of the locking zones 130, 131A, and 131B, as shown in FIG. It is good also as a locking material 129 in the outer side.

During the work shown in FIG. 9, tillage collapse in the work part 103 collides with the cover device 104 and is rubbed, but the impact energy causes deformation of the movable cover body 122 ( Deformation, deformation of the refractive bracket 121, breakage of the George color body 128 may occur.

In addition, tension is applied to the George color body 128 due to vibration when the work machine 101 is lifted and moved relative to the tractor. In order to cope with such a situation, as illustrated in Figs. 4 and 9 to 10, the george color body 128 is provided with a buffer device 76 made of a spring.

In FIG. 9 and FIG. 10, the cylinder 77 is connected to the connecting body 126 standing in the movable cover 122, by the pin body 78, and the cylinder 77 The rod 80 is inserted into the vane water 79 attached to the rod as a sliding material, and between the vane water fastened to the rod 80 and the vane water 79, The coil spring 82 is interposed in a ballistic shape, and the rod 80 is connected to the chain of the George color body 128.

In addition, the crude color 128 illustrated in FIGS. 3, 4 and 9 is attached to a fin body 127 which is set up at the base of the top bust 109. The ground angle of the cover body 122 is appropriately adjusted by setting the connection position with respect to the pin body 127 of the color body 128 here, and it is made of a material material.

Therefore, whenever the above-mentioned impact energy acts on the kava autonomous 104, the kava body 122 moves up and down to the point of refraction bracket 121 shocking each time. When the cover body 122 descends, an abnormal tension is added to the George color body 128 instantaneously. In this situation, the spring 82 is deformed by compression, thereby alleviating the impact to prevent breakage, deformation or loosening of the bolts.

Of course, the shock absorber 76 also works effectively against the vibrational shock when the work machine 101 is mounted in an elevated posture and the tractor T runs. In addition, although the shock absorber 76 is provided in the lower end of the George color body 128 in the Example, you may be provided in the upper, upper and lower stages, or the middle of the George color body 128. As shown in FIG. When carrying out the tillage operation as the posture shown in FIG. 9, the static equilibrium of the race soil is used as the ground portion 125 of the kava body 122. In this case, the stator 126A is attached to the grounding part 125 with the fastener 83A, and the connecting body 126 is attached to the stir 126A with the fastener 83 in a detachable posture. At this time, a fastener 83 such as a nitwasher for the stir 126A is exposed to the ground plane side, and for this reason, a stem formed by the fastener 83 is formed in a flat (flat) trace, which is seeded. It is not desirable for work.

In order to solve such a bad situation, the connecting body 126 may be welded to the cover body 122, but this causes welding distortion, and the most undesirable is the cover when the connecting body 126 breaks. All of the devices 104 will be replaced.

As shown in FIG. 11, the ground portion 125 of the carcass body 122 is formed in the front ground portion 125A and the rear ground portion 125B in the front-rear parallel phase in parallel with the entire width direction. The non-grounded space portion 125C in the entire width direction is formed between each of the ground portions 125A and 125B, and the rear ground portion 125B is denoted by the letter H rather than the front ground portion 125A. As it is, it is formed in stages so that it may become low level.

Therefore, after carrying out the balancing action as the front grounding portion 125A during tillage, and then performing the balancing action as the rear grounding portion 125B, the connecting body 126 is connected by the fastener 83. Even if it is, it will finish the balance evenly. Further, when the second stage is flat, the protruding portion raised in the space 125C acts as a resistance portion, so that it bends and bends around the axis in the front-back direction, for example, and the rear ground portion 125B has a width. Always perform horizontal equalization throughout the entire (width) direction.

In addition, the space 125C compensates for this when some excess soil is collected and flowed out, or when the amount of soil to be leveled is temporarily reduced.

As shown in FIG. 9, the work machine 101 is towed by the three-point link 50 to the tractor T, and the tiller 103 is driven by the transmission device 60. An excessive impact acts on the tilling part 103 during such operation, and this impact gives the vehicle body 51 an undesirable external force to the internal transmission. In order to solve such a situation, the slippery clutch 84 is incorporated in the receiving part of the transmission 60 as shown in FIGS. 12-14. In addition, the transmission 60 has a receiving portion by cross reception at both ends, and each receiving portion is connected to a tractor PTO shaft 59 and a power import shaft 105. In the figure, the clutch device 84 is incorporated in the receiving part of the power import shaft 105, and is illustrated.

Of course, this clutch apparatus 84 may be built in the receiving part with the tractor PTO shaft.

In Fig. 12, 85 and Ga stup 86 are yokes and both are connected by a cross connecting shaft 87. The disk type clutch 84 is incorporated in the yoke 86, and the yoke 86 is divided into a body 88 and a cylinder rib 89. As shown in FIG.

The body 88 and the tub ribs 89 are assembled with a relative rotating material as the ball bearing 90, and splines 89A and 89B are awakened on the inner and outer circumferential walls of the tub ribs 89, respectively. )

The barrel sleeve 89 is opened to the import shaft 105 so as to engage the inner prime 89A with the sprinkling of the power import shaft 105, and the barrel sleeve As shown in FIG. 14, a pin hole for attaching the taping stop pin 92 of the bias is formed as the vat 91. As shown in FIG.

In addition, the clutch 84 is connected to the body flange 94 so as to be connected to a shaft-adjustable malt 96 provided with the pressing fretting 95 at intervals such as the main direction. The bolt coil 96 is casted on each of the bolts 96, and the ring press 95 is urged in the clutch contact direction. (98) is a pair of distans ring plates, which are formed by alternately arranging the driving disk (99A) and the driven disk (99B) between the plates (98). The driving disk 99A is locked to the engaging portion 88A of the body 88 with respect to the main direction, and the driven disk 99B is outspread of the tubular rib 89. At 89B, the main direction is locked. In Fig. 12, reference numeral 100 denotes a built-in Berberiya rolling element in the transmission case 106 or (6). In the transmission 60 illustrated in FIG. 12, the trckle on the tractor PTO shaft 59 shown in FIG. 9 is conducted to the power import shaft 105 or the power import shaft 5 of FIG. 1. The cultivation unit 103 or 3 shown in each embodiment is driven.

When an abnormal impact acts on the tilling part, the slippery clutch 84 slips, and protects the transmission device of the vehicle body 51 including the PTO shaft. In addition, the cutting and torque transmission of the slippery clutch 84 are performed by forcibly adjusting the banne 97 by adding or subtracting the indentation amount of the nit 96A to the bolt 96.

In addition, when the transmission 60 is removed from the tractor PTO shaft 51 and the power import shaft 105 or 5, it stops as shown in the example of the power import shaft 105 in FIG. The pin 92 may be removed and the cylinder sleeve 89 may be removed.

In general, when a slippery clutch is installed in a transmission, the slippery clutch is provided integrally with the power import shaft, but in this case, it is necessary to grind the fourteen connecting shafts due to the maintenance of the clutch, but the structure shown in FIG. The barrel rib 89 is divided from the body 88, which corresponds to the maintenance of the clutch 84, and there is no need to disassemble the cross connecting shaft 87.

In summary, according to the present invention, the rotary drive type ground work machine 1 or 101 connected to the tractor by a three-point linkage device is detached, and at the same time, the transmission device 60 is detached to stand the work machine in an upright position. In the embodiment shown in FIG. 1 and FIG. 2, the working part 18 of the work part 3 and the ground part of the movable cover body 22 in the state where the work machine is connected to the three-point link are shown. (25) is spaced apart from each other back and forth, and the center of the work machine 1 is positioned between both grounds, so that the fixing means in the preferred embodiment 29B of the latches (29) ( 29B) is engaged (engaged) with the locking portion 30 of the frame 2 and the locking portion 31 of the kava body 22, so as to fix the movable cover body 22, and then the three-point linkage device is removed. Inside, a stand is formed here in cooperation with the Caba body 22 and the work body 18, and the work machine 1 is placed in an upright position, Even if a work machine 1 having a stable grounding device 14 or a locking foil device at the station (side) of the section 3 or a working machine having no stable grounding device at all, the working machine is placed in an upright position. The gain is large, which in turn prevents the fall of the work machine to protect it from breakage, and is also advantageous when the work machine is connected to the tractor again.

Also in the embodiment shown in FIG. 3 to FIG. 11, the work piece 118 and the movable cover body 122 of the work part 103 in the state where the work machine 101 is connected as the three-point link 50. The grounding portions 125 of the gages 129 are separated from each other by grounding the grounding portions 125 of the grounding portions 125 so that the center of the work machine 101 is located between both grounds. If the engaging portion 130 of the) and the engaging portion 131B of the movable kava body 122 are engaged, the stand is formed as a cooperation of the kava body 122 and the jaw 118, and 3 Even if the work machine 101 is detached from the point link device 50, it is placed in an upright position.

In the preferred embodiment shown in FIGS. 5 to 8 again, the locking zone 129 is engaged between the locking portions 131A and 131B of the carcass body 122 so that the locking zone 129 is engaged. ) Can be added during the tillage operation, and this is more preferable as there is no loss or loss of the locking zone 129.

In addition, although all of the above examples are inverted in a side drive manner with respect to the rotary work part of the earth work machine, the present invention does not deviate from the claims specifically hereinafter described. The same applies to the center drive type.

Claims (1)

In a rotary drive type work machine including a work base, a rotating ground work body freely provided with a rotational drive on the base by transverse rotation, a transmission means for the working body, and a cover device covering the rotating ground work body, A drive type tillage characterized by isolating the outer periphery of the rotating earth work piece and the movable cover of the cover device back and forth, and at the same time, providing a fixing means of the movable cover to enable the work body and cover to cooperate with each other. Work industry.

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