KR102386255B1 - folding type Rotorbator - Google Patents

Abstract

The present invention relates to a folding type rotavator. According to the present invention, folding type rotavator devices which rotate and are detachably connected, as joint devices, to both ends of first and second cultivation shafts of a rotavator device to which the rotational force of a tractor power transmission device is transmitted are configured to be folded and unfolded as folding devices to enable a cultivation operation in wide and narrow areas to be selectively performed such that excellent efficiency is achieved. In addition, as a folding device, a folding rotavator device can be horizontally foldable. That is, the folding rotavator device is folded while kept in balance such that the height at which the folding rotavator device is folded is low and interference is prevented. Accordingly, maintenance of balance is easily achieved so as to facilitate an operation of a tractor.

Description

Folding type Rotorbator

The present invention relates to a folding type rotovator, and more particularly, a folding rotatorvator device that is rotatably and detachably connected as a joint device to both ends of the first and second tillering shafts of the rotavator device to which the rotational force of the power transmission device is transmitted. It is configured to be folded and unfolded as a device to facilitate tillage work in wide and narrow areas, and to be easily moved while mounted on the track.

In general, agricultural land, such as paddy fields and fields, after harvesting crops in one year, the soil is acidified and the soil is hardened, thereby worsening aeration and drainage, making it difficult to cultivate crops for the following year. In order to solve this problem, by culturing the soil to a depth of 600mm or more, the soil is restored to alkalinity, and the ventilation and drainage properties of the soil are restored, and the cover work is performed to remove parasite eggs.

This cover work is carried out using a rotavator mounted as a joint device on the tractor. The rotavator structure is connected to a tillage shaft with a number of fixed tillage blades, a tillage shaft and a gear, etc. The area consists of a horizontal rotation shaft on which a rotavator joint shaft is installed.

However, the tractor equipped with the rotavator for tillage has a structure in which the tractor cannot be operated while the rotavator is installed. When the tractor is tilled, the rotovator is removed or lifted, and then the tractor and the rotavator are tilled. Inconvenience of moving to the position occurred, and also the problem of having to install a rotavator after moving to the tilled position.

In order to solve this problem, the present applicant has developed and registered Patent No. 10-0899002 (Title of the Invention: Folding Rotavator).

Such a prior art foldable rotavator includes first and second horizontal plates; first and second finishing plates protruding upward and downward from both ends of the first and second horizontal plates; a rotavator device that is rotatably installed between the lower portions of the first and second finishing plates, and includes first and second tillering shafts equipped with tilling blades; a housing fixed to a position adjacent to the first and second horizontal plates by a rotating member; a rotavator folding device installed in the upper region of one side and the other side of the housing and the upper region of the first and second horizontal plates, the folding means for folding and unfolding the first and second horizontal plates; and a power transmission device provided inside the housing and configured to receive power from a tractor and transmit it to the first and second tillering shafts, wherein the power transmission device is fixed inside the housing and , the main power shaft with the first gear mounted on the front area is rotatably installed forward and backward, the second gear meshed with the first gear of the main power shaft is shafted, and the connecting shaft on which the first bevel gear is mounted is rotatable a gearbox in which a second bevel gear meshed with the first bevel gear is shafted, and an auxiliary power shaft is rotatably rotatable to the left and right; And a first joint for transmitting the power of the tractor is chukseol on the main power shaft; second and third joints axially installed at both ends of the auxiliary power shaft; first and second horizontal joints provided between the second and third joints and the upper portions of the first and second horizontal plates and the first and second end plates to receive power from the second and third joints; It is characterized in that it is provided at one end of the first and second horizontal joints, respectively, and consists of first and second power transmission members for transmitting power to the first and second tillering shafts.

In this prior art, the rotavator mounted on the tractor is separated on both sides, and when the tractor is operated, the rotavator is rotated upwards on both sides to separate the rotavator from the ground, and then the operation is performed and the tractor's maneuverability is secured. It can be moved quickly to the desired position, and during tillage, it is rotated downward to tillage, which has the effect of maximizing the utilization of the tractor.

However, this prior art divides the rotovator into two minutes on both sides and can only be folded up to the maximum vertically, making it easy to tillage in a wide area, but it is not easy to tillage in a narrow area, and it can be folded only vertically. There was a problem in that the folded height was not only limited to the maneuvering of the tractor, but also interfered with other objects.

[Patent Document 1] Registered Patent No. 10-0899002 (2009.05.15.)

The present invention has been devised to solve the problems of the prior art, and an object of the present invention is to enable rotation and separation as a joint device at both ends of the first and second tillering shafts of the rotavator device to which the rotational force of the tractor power transmission device is transmitted. An object of the present invention is to provide a folding type rotavator configured to fold and unfold the connected folding rotator device as a folding device to facilitate tillage work in a wide area and a narrow area.

Another object of the present invention is to provide a folding type rotavator that can be folded horizontally as a folding device and has a low folding height, so that the operation of the tractor is easy.

A means of solving the problem for achieving this object is a horizontal fixing plate in which a square through hole is formed in the central region and inner adhesion plates are fixed at both ends, a power transmission device that is mounted through the upper and lower portions in the square through hole, and a power transmission device a rotavator device comprising first and second tillering shafts rotatably installed on both sides of the lower part and on which tillage blades are mounted; First and second folding tilling shafts, both ends of which are rotatably and separably connected as joint devices at both ends of the first and second tilling shafts, and a vertical plate on which one side and the other side of the first and second folding tilling shafts are rotatably installed; a folding rotatorvator device comprising a folding horizontal plate having one end and the other end horizontally fixed to the inner upper portion of the vertical plate, and the outer contact plate being fixed at both ends to be in close contact with the outer surface of the inner adhesion plate of the horizontal fixing plate; It is installed between the horizontal fixed plate and the upper part of the folding horizontal plate, characterized in that it consists of a folding device for folding and unfolding the folding rotatorvator device.

According to the present invention, a folding rotatorvator device that is rotatably and detachably connected as a joint device to both ends of the first and second tillering shafts of the rotavator device to which the rotational force of the tractor power transmission device is transmitted is configured to be folded and unfolded as a folding device, so that a large area And the cultivating work in a small area can be selectively performed, so the efficiency is improved, and the folding rotatorvator device can be folded horizontally as a folding device, that is, the folding height is increased as the folding rotatorvator device is folded while keeping it horizontal. Low interference is prevented, and balance is easy to maintain, providing the effect of easy operation of the tractor.

1 is a perspective view showing the overall structure of a folding type rotavator according to the present invention.
Figure 2 is a front view showing the overall structure of the folding type rotavator according to the present invention.
3 to 5 are cross-sectional views illustrating a power transmission device of a folding type rotavator according to the present invention, FIG. 3 is a cross-sectional view taken along line AA of FIG. It is a longitudinal cross-sectional view of the transmission device.
FIG. 6 is an enlarged perspective view of part “A” of FIG. 2 , and is a configuration diagram showing the joint device of the folding type rotavator;
7 is a cross-sectional view showing the joint device of the folding type rotavator according to the present invention.
FIG. 8 is an enlarged perspective view of part “B” of FIG. 2 , showing the configuration of the folding device of the folding type rotavator;
9 to 11 are block diagrams showing the folding device of the folding type rotavator according to the present invention.
12A and 12B are operational state diagrams of the folding device of the folding type rotavator according to the present invention.
13 is an operation state diagram of the folding means for the folding device of the folding type rotavator according to the present invention.

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

1 and 2 of the accompanying drawings are a perspective view and a front view showing the overall structure of the clamshell rotavator according to the present invention, and FIGS. 6 is an enlarged perspective view of part “A” of FIG. 2 , which is a block diagram showing the joint device of the clamshell rotavator, and FIG. 7 is a main part showing the joint device of the clamshell rotavator according to the present invention. It is a cross-sectional view, and FIG. 8 is an enlarged perspective view of a part “B” of FIG. 2 , and is a configuration diagram illustrating a folding device of the folding type rotovator.

As shown in Figures 1 to 8, the folding type rotavator according to the present invention has a square through hole (12a) is formed in the central region, and the inner adhesion plate (11) is fixed vertically at both ends to protrude horizontally fixed plate. (12), and a power transmission device 20 that is mounted through the upper and lower portions in the square through-holes 12a of the horizontal fixing plate 12, and the power transmission device 20 is rotatably rotatably installed on both sides of the lower side, and tillage a rotavator device 10 comprising the first and second tillering shafts 14 and 15 on which the blade 13 is mounted; One side and the other side are rotatably and detachably connected as a joint device 60 to both ends of the first and second tillering shafts 14 and 15 of the rotavator device 10, and the first, on which the tilling blade 51 is mounted, Two folding tilling shafts 52 and 53, and a vertical plate 54 on which one side and the other side of the first and second folding tilling shafts 52 and 53 are rotatably installed, and the vertical plate 54 on the inner upper part One end and the other end are fixed horizontally, and the outer adhesion plate 55 is fixed at both ends so as to be in close contact with the outer surface of the inner adhesion plate 11 at both ends of the horizontal fixing plate 12. device 50; It is installed between the horizontal fixing plate 12 and the upper part of the folding horizontal plate 56, and consists of a folding device 90 for folding and unfolding the folding rotatorvator device (50).

At this time, the mounting bracket 2 is fixed to the upper central region of the horizontal fixing plate 12 and is mounted on a tractor (not shown).

The power transmission device 20 is a fixed plate 21 fastened and fixed to the outer peripheral surface of the square through hole 12a of the horizontal fixing plate 12, and penetrates the square through hole 12a and is mounted to protrude upward and downward in the vertical gear box 22 )Wow; a power input shaft 24 which is rotatably installed on the upper front side of the vertical gearbox 22 and has a front bevel gear 23 installed therein; The vertical gearbox 22 is rotatably installed through the upper left and right sides, and the side bevel gear 25 meshing with the front bevel gear 23 is installed on one side, and the upper vertical spur gear 26 is installed in the central area. an upper horizontal rotation shaft 27 and; The vertical gearbox 22 is formed to protrude to correspond to the left and right inner sides of the center, and the protrusion 28 in which the assembly groove 28a is formed; a central horizontal fixing shaft 29 having both ends axially installed in the assembly groove 28a of the protrusion 28; a central vertical spur gear 30 that is rotatably installed in the central region of the central horizontal fixed shaft 29 as a bearing 31 and meshes with the upper vertical spur gear 26; The vertical fish box 22 is integrally protruded to the inside and outside to correspond to the lower portion, and the communication hole 32 is formed through the inner and outer concave grooves (33a, 33b) and the connecting protrusion 34 having; A lower horizontal rotation shaft 36 that is rotatably installed between the bearings 35 coupled to the inner recesses 33a of the connection protrusion 34 and protrudes to the outside through the communication hole 32 at the same time; a lower vertical spur gear 37 that is axially installed in the central region of the lower horizontal rotation shaft 36 and meshes with the central vertical spur gear 30; An annular joint 38 axially installed at both ends of the lower horizontal rotation shaft 36 as a shaft insertion hole 38a formed in the central region and protrudingly coupled to the outer concave groove 33b of the protruding connection part 34; It consists of a fastening member 40 for transferring the rotational force by separably fastening the lower horizontal rotation shaft 36 to both ends of the first and second tillering shafts 14 and 15.

The fastening member 40 is screwed to both ends of the lower horizontal rotation shaft 36 to prevent separation of the annular joint 38, and a fastening cap coupled to the inner circumferential surface of the first and second tillering shafts 14 and 15 ( 41) and; It is fixed to the inner ends of the first and second tillering shafts 14 and 15 and is in close contact with the outer surface of the annular joint 38 when the fastening cap 41 is coupled to the inner peripheral surface of the first and second tillering shafts 14 and 15. a connecting flange 42 and; It is fastened to the connecting flange 42 and the annular joint 38 and consists of a fastening bolt 44 for transmitting the rotational force of the lower horizontal rotation shaft 37 to the first and second tillering shafts 14 and 15 .

The joint device 60 includes an upper fixing plate 61a fastened and fixed to the outer surface of the inner adhesion piece 11 of the horizontal fixing plate 12, and bent inwardly under the upper fixing plate 61a, and correspondingly the assembly hole ( 61b-1) and inner brackets 62 and 63 formed of a lower fixing plate 61b; The upper fixing plate 64a fastened and fixed to the inner surface of the outer adhesion piece 55 of the folding horizontal plate 56, and the upper fixing plate 64a are bent outwardly under the lower portion, and the assembly hole 64-1b is formed correspondingly outer brackets 65 and 66 made of a lower fixing plate 64b; A fixing joint member 70 that is detachably mounted on the connecting flanges 70a of both ends of the first and second tillering shafts 14 and 15 through the assembly holes 61b-1 of the inner brackets 62 and 63 and ; It passes through the assembly hole 64b-1 of the outer brackets 65 and 66 and is detachably mounted on the connecting flanges 80a of both ends of the first and second folding tilling shafts 52 and 53 and the fixed joint member 70 It is rotatably engaged with the torso and transmits a rotational force, and consists of a flow joint member 80 that is separated from the fixed joint member 70 during operation of the folding device 90 .

The fixed joint member 70 passes through the assembly holes 61b-1 of the inner brackets 62 and 63, is closely coupled to the outer surface, and includes a bearing housing 72 in which a bearing 71 is installed; The assembly hole (61b-1) is in close contact with the inner surface of the inner brackets 62 and 63 of the outer peripheral surface and is fastened and fixed to the inner brackets 62 and 63 and the bearing housing 72 as a fastening bolt 73, and the assembly through hole 74a ) and the inner connector 74 is formed; The outer annular joint 75 fastened as a fastening bolt 73 to the connecting flange 70a of the outer ends of the first and second tillering shafts 14 and 15, and the assembly through hole 74a of the inner connector 74 The circular protrusion 76a to be inserted, the circular plate 76b integrally formed inside the circular protrusion 76a, and the assembly hole 76c formed through the central region of the circular protrusion 76a and the circular plate 76b, and the circular plate (76a) a fixing joint 76 consisting of a joint groove (76d) and a joint protrusion (76e) integrally formed at equal intervals on the inner edge; It is integrally formed in the inner central region of the outer annular joint 75 and consists of an assembly hole 76c of the fixed joint 76 and a fixed joint shaft 77 rotatably installed on the bearing 71 .

The flow joint member 80 passes through the assembly holes 64b-1 of the outer brackets 65 and 66, is closely coupled to the outer surface, and includes a bearing housing 82 having a bearing 81 installed therein; It is in close contact with the inner surface of the outer brackets 65 and 66 of the outer peripheral surface of the assembly hole 64b-1, and is fastened to the outer brackets 65 and 66 and the bearing housing 82 as a fastening bolt 73, and the assembly through hole 84a ) and the inner connector 84 is formed; an outer annular joint 85 fastened to the connecting flange 80a of one side and the other end of the first and second folding tilling shafts 52 and 53 as a fastening bolt 73; A circular projection 86a inserted into the assembly through-hole 84a of the inner connector 84, a circular plate 86b integrally formed inside the circular projection 86a, and the center of the circular projection 86a and the circular plate 86b The assembly hole 86c formed through the region and the circular plate 86a are formed at equal intervals on the inner edge of the fixing joint 76, and the rotational force is transmitted to the joint groove 76d and the joint protrusion 76e of the fixed joint 76, and the joint is engaged so as to be separated. a flow joint 86 comprising a protrusion 86e and a joint groove 86d; It is integrally formed in the inner central region of the outer annular joint 85 and consists of an assembly hole 86c of the flow joint 86 and a flow joint shaft 87 rotatably installed on the bearing 81 .

The folding device 90 is fixed to protrude on both sides of the upper side of the horizontal fixing plate 12, and the cover body 91 is detachably fastened to the rear surface of the vertical housing 92 to block the space portion 92a formed therein. )class; It is rotatably installed between the vertical housing 92 and the cover body 91 and is fixed on the horizontal fixing plate 12 and the folding horizontal plate 56 and the folding horizontal plate 56, the first and second folding tilling shafts (52) (53) and a rotating means (A) for rotating the joint device 60 inwardly and outwardly; A hydraulic cylinder 94 that is flange-coupled in communication with the space 92a on the lower right or left side of the vertical housing 92 and the piston 93 is movably coupled therein, and the piston 93 on the inner surface The rod 95 formed integrally and the rack mounted on the left or right side of the rod 95 are fastened and fixed as the fixing nut 96, and are seated on the upper part of the linear moving end 97 formed in the lower part of the space 92a. It is composed of a gear 98, and consists of a folding means (B) for folding and unfolding by rotating the rotation means (A).

The rotating means (A) is formed integrally projecting to the outside of the vertical housing 92 and the cover body 91, the first and second bearings (99a, 99b) are installed therein; a horizontal rotation shaft 102 rotatably installed between the first bearings 99a of the bearing housing 100 and having a first spur gear 101 meshed with the rack gear 98 on an outer circumferential surface thereof; A horizontal rotational long shaft rotatable between the second bearings 99b of the bearing housing 100 and installed to protrude from the front and rear surfaces, and a second spur gear 103 meshed with the first spur gear 101 on the outer circumferential surface. (104) and; Annular joint ( 105) and; The inner protrusion 106a of the annular joint 105, the fitting hole 107a formed in the upper part is inserted and screwed and fixed, and the lower part is the inclined social movement arm 107 fixed to the upper part of the folding horizontal plate 56; A fitting groove 108a formed on the inner side of the upper part is fitted to the outer protrusion 106b of the annular joint 105 and is fixed, and the lower part consists of a pair of vertical fixing pieces 108 fixed to the upper part of the horizontal fixing plate 12 .

The operating state of the folding type rotovator according to the present invention configured as described above will be described.

1 and 2, as the power of the tractor is transmitted to the rotavator by operating a manipulation device (not shown) while driving the tractor, the rotavator operates to perform tillage work.

Briefly explaining this, as shown in FIGS. 3 and 5 , the power of the tractor is transmitted to the power input shaft 24 through a joint shaft (not shown) constituting the power transmission device 20 , and to the power input shaft 24 . The axially installed front bevel gear 23 rotates, and the side bevel gear 25 meshed with the front bevel gear 23 rotates around the upper horizontal rotation shaft 27 .

At the same time, the upper vertical spur gear 26 axially installed in the center of the upper horizontal rotation shaft 27 rotates, and both ends are fixed to the assembly groove 28a of the protrusion 28 formed inside the center of the vertical gearbox 22. The central horizontal fixed shaft 29 is rotatably installed as a bearing 31 in the central region, and the central vertical spur gear 30 meshed with the upper vertical spur gear 26 rotates.

Accordingly, as shown in FIG. 4, the lower horizontal rotation shaft rotatably installed between the bearings 35 coupled to the inner concave grooves 33a of the connection protrusions 34 protruding outwardly and outwardly from the vertical fish box 22 lower portion ( 36) and as the lower vertical spur gear 37 meshed with the central vertical spur gear 30 rotates, it is detachably connected to both ends of the lower horizontal rotation shaft 36 as a fastening member 40 As rotational force is transmitted to the first and second tillering shafts 14 and 15 and the first and second tillering shafts 14 and 15 are rotated, the tillage operation is performed by the tillage blade 13 .

At the same time, the rotational force of the first and second tillering shafts 14 and 15 of the rotovator device 10 is transmitted to the first and second folding tilling shafts 52 and 53 through the joint device 60, and the tilling blade ( 51), wide-area tillage is carried out.

In this way, to schematically describe the operating state of the joint device 60 for transmitting the rotational force of the rotatorvator device 10 to the first and second folding tilling shafts 52 and 53 of the folding rotatorvator device 50 do it with

6 and 7, it is formed in the inner central region of the outer annular joint 75 that is fastened and fixed to the connecting flange 70a of the first and second tillering shafts 14 and 15, and of the fixed joint 76 As the assembly hole 76c and the fixed joint shaft 77 rotatably installed on the bearing 71 rotate, the assembly hole 76c formed in the circular protrusion 76a and the circular plate 76b on the fixed joint shaft 77 ) as the fixed joint 76 is rotated.

At the same time, the rotational force is transmitted to the joint recess 76d and the joint protrusion 76e of the fixed joint 76 to the flow joint 86 engaged by the joint protrusion 86e and the joint recess 86d, As the flow joint shaft 87 rotatably installed on the assembly hole 86c and the bearing 81 rotates, the first and second folding tilling shafts are fastened and fixed to the outer annular joint 85 as a connection flange 80a. (52) and (53) are rotated, the tillage operation is made by the tillage blade (51).

As described above, the tiller blades 13 of the first and second tillering shafts 14 and 15 and the first and second folding tilling shafts 52 and 53 constituting the rotavator device 10 and the folding rotovator device 50 are formed. ) (51), after cultivating the soil, move the tractor to another place to carry out tillage work, or operate the folding device 90 constituting the clamshell rotavator when cultivating narrow fields to operate the folding rotatorvator device 50 ) is folded upwards to move the tractor to the work place.

As such, when schematically explaining the operating state of the folding device 90 for folding the folding rotatorvator device 50 upward,

When the hydraulic pressure is supplied to the inside of the hydraulic cylinder 94 constituting the folding means (B) by manipulating the hydraulic device of the worker tractor as in FIGS. 9 and 13, the piston 93 inside the hydraulic cylinder 94 is inside will move to the side.

Then, as the rack gear 98 fastened and fixed to the rod 95 as the fixing nut 96 moves inward along the linear moving end 97 , the first spur gear meshed with the rack gear 98 . 101 rotates in a clockwise direction about the horizontal rotation shaft 102 , and the second spur gear 103 meshed with the first spur gear 101 counterclockwise around the horizontal rotation axis 104 . will rotate

At the same time, it is inserted as a fitting hole (107a) into the inner protrusion (106a) of the annular joint (105) and is screwed and fixed, and the inclined social movement arms (107) on both sides of which the lower part is fixed to the upper part of the folding horizontal plate (56) are horizontal It rotates clockwise and counterclockwise about the rotation shaft 104, so that the folding horizontal plate 56 and the vertical plate 54 and the first and second folding tilling shafts 52 and 53 rotate clockwise and counterclockwise. will rotate

Accordingly, from the joint recess 76d and the joint protrusion 76e of the fixed joint 76 constituting the fixed joint member 70, the joint protrusion 96e of the flow joint 86 constituting the flow joint member 80 and The joint groove 86d is separated and rotates clockwise and counterclockwise together with the first and second folding tilling shafts 52 and 53 .

At this time, the rotation angle of the folding rotatorvator device 50 rotates about the horizontal rotation shaft 104 as much as the movement length of the piston 93 inside the hydraulic cylinder 94. It is folded about 180° from (10).

On the other hand, after moving the tractor to the work place, by manipulating the tractor to put the rotavator device 10 on the ground (soil), and then operate the folding device 90 to move the folded folding rotatorvator device 50 downward. It will be rotated and unfolded and then tillage work will be carried out.

When the operation for this, that is, the operation state of the folding device 90 for unfolding the folding rotatorvator device 50 downward, is schematically described,

When the hydraulic pressure inside the hydraulic cylinder 94 constituting the folding means (B) is discharged to the hydraulic system by manipulating the hydraulic system of the tractor as shown in FIG. 13, the piston 93 in the hydraulic cylinder 94 moves to the outside. will move

Then, the rack gear 98 moves inward along the linear movement end 97 , and the first spur gear 101 meshed with the rack gear 98 moves counterclockwise around the horizontal axis of rotation 102 . is rotated, and the second spur gear 103 meshed with the first spur gear 101 rotates in a clockwise direction about the horizontal long axis of rotation 104 .

At the same time, the tilting shaft moving arm 107 rotates counterclockwise and clockwise around the horizontal rotation shaft 104, so that the folding horizontal plate 56, the vertical plate 54 and the first and second folding tilling shafts 52 are rotated. (53) rotates counterclockwise and clockwise.

Accordingly, the flow joint 86 rotates counterclockwise and clockwise to engage the joint groove 76d and the joint projection 76e of the fixed joint 76 so that the joint projection 96e and the joint groove 86d are rotatably engaged. (refer to Figs. 7 and 12a)

In this state, while driving the tractor, the cultivating blades 31 and 51 of the first and second tillering shafts 14 and 15 of the rotavator device 10 and the first and second folding tilling shafts 52 and 53 are applied. The tillage work of a wide area is carried out by the there will be

On the other hand, the clamshell rotovator according to the present invention described above is not limited to the above embodiment, and without departing from the gist of the present invention as claimed in the claims below, those of ordinary skill in the art Anyone who grows up will say that there is a technical idea to the extent that various changes can be implemented.

10: rotavator device 12: horizontal fixed plate
14,15: 1st and 2nd tillage shaft 20: Power transmission device
50: folding rotator device 52, 53: first and second folding tiller shaft
54: vertical plate 55: outer adhesion plate
56: folding horizontal plate 60: joint device
62,63: inner bracket 65,66: outer bracket
70: fixed joint member 72, 82, 100: bearing housing
74,84: inner connector 75,85: outer annular joint
76: fixed joint 76a, 86a: circular protrusion
76b, 86b: round plate 76d, 86d: joint groove
76e, 86e: joint protrusion 87: flexible joint shaft
90: folding device 92: vertical housing
93: piston 94: hydraulic cylinder
95: rod 98: rack gear
99a, 99b: 1,2 bearings 101,103: 1,2 spur gears
102: horizontal axis of rotation 104: long axis of horizontal rotation
105: annular joint 107: inclined society copper rock
108: vertical fixed piece A: rotating means
B: folding means

Claims (6)

a horizontal fixing plate 12 having a square through hole 12a formed in the central region and having an inner adhesion plate 11 fixed to both ends thereof; a power transmission device 20 mounted so that the upper and lower portions pass through the square through hole 12a; The power transmission device 20 is rotatably axially installed on both sides of the lower portion, and the rotavator device 10 comprising the first and second tilling shafts 14 and 15 on which the tilling blade 13 is mounted;
The first and second folding tilling shafts 52 and 53 are joint devices 60 at both ends of the first and second tilling shafts 14 and 15, both sides of which are rotatably and detachably connected; a vertical plate 54 on which one side and the other side of the first and second folding tilling shafts 52 and 53 are rotatably installed; Folding horizontal plate ( 56) consisting of a folding rotatorvator device (50); and
a vertical housing 92 which is fixed to protrude on both sides of the upper side of the horizontal fixing plate 12, and a cover body 91 is detachably fastened to the rear surface to block the space portion 92a formed therein; It is rotatably installed between the vertical housing 92 and the cover body 91 and is fixed on the horizontal fixing plate 12 and the folding horizontal plate 56 and the folding horizontal plate 56, the first and second folding tilling shafts (52) and (53) and the joint device (60) rotating means (A) for rotating inwardly and outwardly; A hydraulic cylinder 94 that is flange-coupled in communication with the space 92a on the lower right or left side of the vertical housing 92, and the piston 93 is movably coupled therein, and the piston 93 on the inner surface The rod 95 formed integrally and the rack mounted on the left or right side of the rod 95 is fastened and fixed as a fixing nut 96, and is seated on the upper portion of the linear moving end 97 formed in the lower portion of the space 92a. a folding device (90) for folding and unfolding the folding rotatorvator device (50), which is composed of a gear (98) and is composed of a folding means (B) for folding and unfolding by rotating the rotation means (A);
A clamshell rotavator, characterized in that it comprises a. According to claim 1, wherein the joint device (60)
An upper fixing plate 61a fastened and fixed to the outer surface of the inner adhesion piece 11 of the horizontal fixing plate 12 is bent inwardly under the upper fixing plate 61a, and an assembly hole 61b-1 is formed correspondingly and inner brackets 62 and 63 made of a lower fixing plate 61b;
The upper fixing plate 64a fastened and fixed to the inner surface of the outer adhesion piece 55 of the folding horizontal plate 56 and the upper fixing plate 64a are bent outwardly below the upper fixing plate 64a, and the assembly hole 64-1b is formed correspondingly an outer bracket 65 and 66 made of a lower fixing plate 64b;
The fixing joint member 70 is detachably mounted to the connecting flanges 70a of both ends of the first and second tillering shafts 14 and 15 through the assembly holes 61b-1 of the inner brackets 62 and 63. Wow;
It passes through the assembly holes 64b-1 of the outer brackets 65 and 66 and is detachably mounted on the connecting flanges 80a of both ends of the first and second folding tilling shafts 52 and 53 to form a fixed joint member 70 ) is rotatably engaged to transmit a rotational force, and a folding type rotator, characterized in that it is composed of a flexible joint member (80) that is separated from the fixed joint member (70) when the folding device (90) is operated. According to claim 2, wherein the fixing joint member (70)
a bearing housing 72 passing through the assembly holes 61b-1 of the inner brackets 62 and 63, closely coupled to the outer surface, and having a bearing 71 installed therein;
It is in close contact with the inner surface of the inner brackets 62 and 63 of the outer peripheral surface of the assembly hole 61b-1, and is fastened to the inner brackets 62 and 63 and the bearing housing 72 as a fastening bolt 73, and the assembly through hole ( 74a) and the inner connector 74 is formed;
an outer annular joint 75 fastened to the connecting flange 70a of the outer ends of the first and second tillering shafts 14 and 15 as a fastening bolt 73;
A circular protrusion 76a inserted into the assembly through-hole 74a of the inner connector 74, a circular plate 76b integrally formed inside the circular projection 76a, and a circular projection 76a and a circular plate 76b A fixing joint 76 comprising an assembly hole 76c penetrating through the central region, a joint concave groove 76d and a joint protrusion 76e integrally formed at equal intervals on the inner edge of the circular plate 76a;
It is integrally formed in the inner central region of the outer annular joint (75) and is composed of an assembly hole (76c) of the fixed joint (76) and a fixed joint shaft (77) rotatably installed on the bearing (71). Clamshell Rotavator. According to claim 2, wherein the flow joint member (80)
a bearing housing 82 that passes through the assembly holes 64b-1 of the outer brackets 65 and 66, is closely coupled to the outer surface, and has a bearing 81 installed therein;
It is in close contact with the inner surface of the outer brackets 65 and 66 of the outer peripheral surface of the assembly hole 64b-1, and is fastened to the outer brackets 65 and 66 and the bearing housing 82 as a fastening bolt 73, and the assembly through hole ( 84a) and the inner connector 84 is formed;
an outer annular joint 85 fastened to the connecting flange 80a of one side and the other end of the first and second folding tilling shafts 52 and 53 as a fastening bolt 73;
A circular protrusion 86a inserted into the assembly through-hole 84a of the inner connector 84, a circular plate 86b integrally formed inside the circular projection 86a, and a circular projection 86a and a circular plate 86b The assembly hole 86c formed through the central region and the circular plate 86a are formed at equal intervals on the inner edge of the fixing joint 76, and the rotational force is transmitted to the joint recess 76d and the joint protrusion 76e. a flow joint 86 composed of a joint protrusion 86e and a joint concave groove 86d;
A folder characterized in that it is integrally formed in the inner central region of the outer annular joint (85) and is composed of an assembly hole (86c) of the flow joint (86) and a flow joint shaft (87) rotatably installed on the bearing (81). Brother Rotavator. delete According to claim 1, wherein the rotating means (A) is
a bearing housing 100 integrally projecting to the outside of the vertical housing 92 and the cover body 91 and having first and second bearings 99a and 99b installed therein;
a horizontal rotation shaft (102) rotatably installed between the first bearings (99a) of the bearing housing (100) and having a first spur gear (101) meshed with the rack gear (98) on an outer circumferential surface;
Horizontal rotation in which the second spur gear 103 is rotatable between the second bearings 99b of the bearing housing 100 and protrudes to the front and rear surfaces, and the second spur gear 103 meshes with the first spur gear 101 on the outer circumferential surface a long axis 104;
An annular joint in which a shaft insertion hole 105a in which both ends of the horizontal long shaft 104 are axially installed is formed, and an inner protrusion 106a and an outer protrusion 106b are formed on the inner and outer outer peripheral surfaces of the shaft insertion hole 105a (105) and;
The annular joint 105, the fitting hole 107a is inserted into the inner protrusion 106a, the screw is fastened and fixed, and the lower part is the inclined social moving arm 107 fixed to the upper part of the folding horizontal plate 56;
A fitting groove (108a) formed on the inner side of the upper part is fitted and fixed to the outer protrusion (106b) of the annular joint (105), and the lower part is a vertical fixing piece (108) fixed on the horizontal fixing plate (12) characterized in that it consists of clamshell rotavator.

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