KR20150028548A - Furrowing apparatus for tractor - Google Patents

Abstract

The present invention relates to a furrowing apparatus for a tractor installed on a tractor or a rotary installed on a tractor to form furrow and, more specifically, to a furrowing apparatus for a tractor which comprises a power driving shaft receiving a certain power from a tractor; a main housing having a certain part coupled with the tractor or the rotary body; an auxiliary housing having a certain part of one side coupled with both ends of the main housing; a rotatory shaft having the auxiliary housing coupled on a certain part of the other side to be rotated, while including a working gear on a certain part of both ends on one side; a furrowing blade body including a coupler coupled to be fixed on the rotatory shaft and a furrowing blade; and a hallow coupled with a certain part of the main housing corresponding to the back of the tractor to smoothly receive power of the power driving shaft, and be economical by light weight with a simple structure. Moreover, the furrowing apparatus for a tractor according to the present invention can obtain an effect of reducing fuel loss of a tractor by having a simplified structure of delivering a driving power received from the tractor to the rotatory shaft, and delivering the driving shaft of the rotatory shaft to a connection plate to deliver the driving power to the furrowing blade body separated or coupled to be fixed on the connection plate, and including the furrowing blade to from furrow. Therefore, provided are an effect of being easily repaired by making verification of failure cause easy when being broken by a simple structure, and an effect of making width control of furrow easy by having the furrowing blade body be easily separated or coupled to fixed on the connection plate.

Description

[0001] The present invention relates to a furrowing apparatus for tractor,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a tractor for a tractor, which is mounted on a tractor or a rotary mounted on a tractor to form a ridge, An auxiliary housing coupled to one end of the main housing at opposite ends thereof, a pivot shaft coupled to the other end of the auxiliary housing so as to be rotatable, and having an operating gear at a certain end of one end thereof, And a sun gear which is fastened to a certain portion of the main housing corresponding to a rear portion of the tractor so that the power of the power drive shaft can be smoothly received and a simple structure And is economical in terms of cost.

Generally, a clogging device for forming ridges and valleys is provided in the form of a "V" -type panel on the rear side of a rotary body connected to a tractor that digs the ground to a certain depth. In recent years, And the ridge and valleys of the field are formed.

The following is a typical prior art related to a tractor shoveling apparatus.

Japanese Patent Application No. 10-0421807 discloses a planetary gear unit that includes a gear box that receives power from a tractor, a prime axle portion horizontally extending from the gear box to one side, a secondary axle pipe horizontally extending to the other side, And a pair of connecting arms fixed to the auxiliary shaft pipe forward to be connected to the tractor; A pair of vertical members provided on the upper portion of the prime shaft portion and the auxiliary shaft pipe, a horizontal frame fixed by horizontally fixing the upper portion of the vertical member with a C-shaped bolt, and a wheel barrel sandwiched between the left and right ends of the horizontal frame A wheel chair portion; A shoe wheel shaft which receives power from the prime shaft and drives the shoe wheel; And a plurality of batt knots fixed to the wheel disc by bolts, wherein the blind wheel axes are divided into three stages, each of which is composed of a drive side assembly, a driven side assembly and a pipe shaft connecting the two axes, The clay wheel has a structure in which the wheel disk is fixed by bolts to a flange hub fixed to the spline shaft.

Since the driving shaft can be divided into three stages, it is easy to disassemble and assemble the clay wheel from the driving shaft. Moreover, since the flange hub is turned upside down, the width of the clay wheel can be varied, However, there is a problem that the width of the ridges can not be controlled smoothly according to the judgment of the operator, and continuous research and development is required to solve the problems.

In addition, Korean Patent No. 10-1180911 of the applicant of the present invention has a power drive shaft for transmitting the power of a tractor, a power generator housing having a part of the tractor or the rotary main body and a main drive gear, And a plurality of distributor housings and a plurality of sharers, each of which includes a main drive shaft having a plurality of distributing gears that can be fixed on the shaft, a connecting gear for transmitting the driving force of the main driving shaft, and an operating gear for transmitting driving force of the connecting gear .

In order to solve the problem that the width of the ridges can not be controlled smoothly according to the operator's judgment, the distribution gear, the connecting gear and the discharger housing are used, but it is difficult to control the number of ridges by adding or removing the discharger housing However, it is required to continuously research and develop to solve the problem that troubles and repair difficulties due to the complicated configuration of the connecting gear occur.

Korean Patent No. 10-0421807 Korean Patent No. 10-1180911

The present invention has been made in order to solve the problems of the prior art of a tractor shoveling apparatus, and it is an object of the present invention to solve the problems of the conventional art, It is troublesome to repair many parts separately, and it is difficult to remove the distribution gear when adjusting the number of lugs by adding or removing the housing of the exhaust hood. In order to use again, However,

It is difficult to repair and repair due to complicated construction such as distribution gears and connecting gears. In addition, since the driving device of the clogging device is complicated and heavy, the fuel loss of the tractor is large during driving. It is the main purpose.

The present invention has been made to solve the above-

A power drive shaft to which a drive shaft of the tractor is connected at one side and a transmission gear at a certain end of the other end is connected to a tractor or a rotary body and a hydraulic cylinder connected to the tractor or the rotary body is operated to move up and down A main housing having a predetermined length in the transverse direction of the tractor, an auxiliary housing having one end fixed to both ends of the main housing, and a fixed part having opposite ends fixed to the other side of the auxiliary housing, A transmission shaft having an operating gear which receives a driving force of the transmission gear at a predetermined end portion at one end thereof, and a fastener capable of being fixedly coupled to the rotating shaft on the axis of the rotating shaft, And having a plurality of blasted blades; And a heater for pressing one side of the main housing and one side of the main housing to press the upper portion of the laid soil.

In the tractor clogging apparatus according to the present invention as described above, the driving force transmitted from the tractor is transmitted to the rotating shaft, and the power of the rotating shaft is transmitted to the connecting plate to be separated or fixed to the connecting plate, It is possible to reduce the fuel loss of the tractor by reducing the weight of the blade body by forming a ridge by transmitting power to the blade body,

With the simple structure as described above, it is possible to easily identify the cause of the trouble in the event of a fault and to easily repair it, and it is possible to easily separate or fix the clay blade body composed of the first clay blade body and the second clay blade body to the connection plate It is possible to obtain an effect that the desired width of the knee width can be easily adjusted.

Brief Description of the Drawings Fig. 1 is a side view showing a clay chute apparatus according to a preferred embodiment of the present invention. Fig.
2 is a side view of a tractor cloaking device according to another embodiment of the present invention.
FIGS. 3 to 4 are perspective views showing a chute apparatus for a tractor according to a preferred embodiment of the present invention. FIG.
5 is a partial perspective view showing an operating state of a tractor cloaking device according to a preferred embodiment of the present invention.
Fig. 6 is a side view showing a bod-head blade body of a tractor cloaking device according to a preferred embodiment of the present invention. Fig.
FIGS. 7 to 8 are partial cross-sectional views illustrating a tractor cloaking device according to a preferred embodiment of the present invention. FIG.

A tractor (100) is connected to a driving shaft (120) of a tractor (100) and a transmission gear (14) is connected to a certain end of the tractor (100) A tractor 100 or a rotary body 110 and is movable up and down by the operation of a hydraulic cylinder 130 fastened to a certain part of the tractor 100 or the tractor 100, A main housing 20 having a predetermined length in the width direction of the auxiliary housing 100 and an auxiliary housing 23 having one end fixed to both ends of the main housing 20, (30) having an operating gear (44) that is rotatably coupled to a predetermined portion of the other side of the transmission gear (23) and receives a driving force of the transmission gear (14) ) And a fastening member (46) A bladder blade main body 40 provided on the axis of the coaxial shaft 30 and separated or fixed to the coupling hole 46 and having a plurality of bladder blades 43; And a heater (50) which is fastened to a certain portion of the main housing (20) at one side and the other side presses and presses an upper portion of the clogged trough.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments of the invention are shown.

The power drive shaft (10) of the present invention

The driving shaft 120 of the tractor 100 is connected to the driving shaft 120 of the tractor 100 and the tractor 100 is connected to one side of the driving shaft 120, As shown in Fig. 1, includes a drive shaft which is branched from a drive shaft for power transmission of a tractor connected to a rotary position located at the rear portion of the tractor, as shown in Fig. 1 .

The power drive shaft 10 is connected to the driving shaft 120 of the tractor 100 at one side and is provided with a transmission gear 14 capable of transmitting a driving force to the following driving gear 44 A first driving shaft 11 connected to one side of the driving shaft 120 of the tractor 100 to receive a driving force and a second driving shaft 11 receiving a driving force from the other side of the first driving shaft 11, A second drive shaft 12 connected to one side of the gear box 13 to receive a driving force and having a transmission gear 14 at a certain end of the other end, And the like.

That is, the first drive shaft 11 is connected to one side of the drive shaft 120 of the tractor 100 to provide a driving force to a plurality of gears in the gear box. The drive shaft 120 of the tractor 100, The driving force of the driving shaft 120 or the gear box 13 of the tractor 100 can be coupled to the driving force receiving shaft of the tractor 100 by using a member such as a universal joint according to the constitution position of the driving shaft 13.

The gear box 13 is configured to change the rotational direction or the rotational speed of the driving force transmitted from the first driving shaft 11 and is configured to change the rotational direction or rotational speed of the driving force transmitted from the first driving shaft 11 Various configurations are possible to change the direction of rotation or rotation speed.

The second drive shaft 12 is connected to one side of the driving force pulling shaft of the gear box 13 and has a transmission gear 14 at a certain end portion of the other end extending from one side. To transmit the driving force of the tractor 100 to the following operating gear 44 by changing the rotating direction or the rotating speed.

At this time, one or more transmission gears 14 may be provided to smoothly transmit power to the following operating gears 44. However, as shown in the embodiment of the present invention, in order to stably transmit power, It is preferable to use the transmission gear 14.

The first drive shaft 11, the gear box 13 and the second drive shaft 12 may be configured to be oriented in various shapes and directions depending on their respective connection relationships. In the present invention, the gear box 13, It is possible to stably mount the support member 15 on the main housing 20. The means for supporting the first drive shaft 11 and the second drive shaft 12 in the present invention is not shown, but it is possible to arrange for securing a smooth turning force by using a plurality of support members and a bearing member, something to do.

The main housing 20 of the present invention

A certain portion of the tractor 100 or the rotary main body 110 is fastened and lifted and lowered by the operation of the hydraulic cylinder 130 fastened to a certain portion and a predetermined length in the width direction of the tractor 100 A portion of the main housing 20 itself having a certain length in the transverse direction of the tractor 100 is connected to the tractor 100 or the rotary main body 110 1 or 2, the one side is connected to the tractor 100 or the rotary body 110 and the other side is connected to the main housing 20 by a support part 140 fastened to a certain part of the main housing 20, Or may be formed.

The support rods 140 are directly coupled to the main housing 20 and can be moved up and down by the hydraulic cylinders 130. The support rods 140 are directly coupled to the main housing 20, The main housing 20 may be damaged if the lifting and lowering movements of the main housing 20 and the main housing 20 are performed by using a thick steel plate of the main housing 20 in order to withstand the weight of the main drive shaft 30 and the discharger housing 40 It is preferable to fasten the main housing 20 and the support member 140 using the support member 16 as shown in FIG.

The support member 15 for supporting the gear box 13 may also be bolted or integrally fastened to the main housing 20 and fixed to both the support member 16 and the main housing 20 It will be apparent to those skilled in the art that changes may be made without departing from the spirit of the invention.

The hydraulic cylinder 130 for lifting and lowering the main housing 20 is connected to a portion of the tractor 100 or the rotary main body 110 while the other side is connected to the main housing 20, The main housing 20 can be lifted or lowered from the ground by being connected to a hydraulic nozzle of a general tractor so that the main housing 20 can be lifted or lowered from the ground. Also,

At this time, the engagement between a certain portion (or the support base 140) of the main housing 20, which is lifted and lowered by the hydraulic cylinder 130, and the tractor 100 or the rotary main body 110, - It is obvious that it is configured to be able to rotate at a certain angle so that it can move downward.

As shown in FIG. 4, the main housing 20 has a roof or a polygonal tubular shape and a cylindrical shape. The auxiliary housing 23 is fastened to a certain portion of both ends of the auxiliary housing 23, It is preferable that the lower portion of the lower portion is cut so as to smoothly transmit the driving force of the rotary shaft 30 fastened to both sides to be rotatable to the lower bladder main body 40 and to drive the bladder blade main body 40 It is acceptable.

The auxiliary housing (23) of the present invention

As shown in FIG. 3 or FIG. 4, the following structure is adopted in which the transmission gear 14 is operated with a configuration in which the following ends are fastened to both ends of the main housing 20 so that one constant- A gear housing 21 accommodating the gear 44 and the tensioner 22 is fastened to one side of the second drive shaft 12 in the longitudinal direction (direction in which the transfer gear 14 is provided) 14, the actuating gear 44 and the tensioner 22 can be protected from external foreign matter during operation.

It should be apparent that the shape of the auxiliary housing 23 can be changed within the scope of the present invention without departing from the gist of the present invention. The auxiliary housing 23 and the auxiliary housing 23 And is rotatable by a bearing member engaged with a flange that can be separated and fixed.

At this time, the length from one end to the other end of the auxiliary housing 23 is a constituent factor that can control the depth of the furrow, and can be variously modified according to the judgment of a person skilled in the art.

The tensioner 22 has a structure for adjusting the tension of the chain when the transmission gear 14 of the main drive shaft 10 and the following actuating gear 44 are connected by a chain to transmit a driving force, It is preferable that the guide part 23 is provided at a predetermined position on one side of the guide part 23.

Further, the tensioner 44 can use any of the conventional tensioners, and the position of the tensioner 44 can also be changed according to the judgment of a person skilled in the art.

The pivot shaft 30 of the present invention

And an actuating gear (44) which is fixed at one end of the auxiliary housing (20) so as to be rotatable on a certain portion of the other side of the auxiliary housing (20) and receives a driving force of the transmission gear And a plurality of engaging grooves 31 for engaging the engaging grooves 31 with the following engaging members 46. The driving force of the actuating gear 44 is transmitted to the rotating shaft 30, To the fastening tool (46).

At this time, the coupling grooves (not shown) corresponding to the coupling grooves 31 are provided in the coupling holes 46, and the coupling holes 46 are formed in the coupling shafts 30 through the coupling screws 32 to receive the driving force of the coupling shafts smoothly. To be rotated.

The coupling grooves 31 may be provided as necessary according to the judgment of a person skilled in the art and the coupling between the coupling holes 46 and the rotary shaft 30 may be modified within the scope of the present invention. In the invention, it is preferable to fasten the fastening hole 46 and the rotary shaft 30 using the fastening screw 32.

As described above, the coupling between the pivot shaft 30 and the auxiliary housing 23 can be any fastening relationship as long as the pivot shaft 30 can be pivotally coupled to the auxiliary housing 23, And is rotatable by a bearing member fastened to a flange that can be separated and fixed to the auxiliary housing 23 at a predetermined portion on both sides of the coaxial shaft 30. [

The rotary shaft 30 is rotated by the actuating gear 44 that receives the driving force of the transmission gear 14 and the rotary shaft 30 is rotated by the fastener 46 which receives the driving force of the rotary shaft 30, Thereby providing a turning force to the batten blade 43 fastened to a certain portion of the batteen blade body 40.

In other words, the pivot shaft 30 of the present invention is not a type in which the driving force of the conventional power driving shaft is transmitted by the main driving shaft or the like, which is an intermediate stage, but receives the driving force of the power driving shaft 10 without intermediate steps. It is possible to obtain a more excellent lightweight effect, and it is possible to achieve a cost reduction due to the weight reduction and an effect of reducing the number of workings in the case of failure and repair.

The driving force of the transmission gear 14 is transmitted to the transmission gear 14 at a predetermined end portion of one end of the pivot shaft 30, which is inside or outside the flange corresponding to one side of the pivot shaft 30, The transmission gear 14 and the operating gear 44 may be directly coupled or may be mutually coupled as a chain but the distance between the pivot shaft 30 and the main drive shaft 10 is long It is preferable that the transmission gear 14 and the actuating gear 44 are larger in size and inefficient so that they are mutually engaged with each other as in the embodiment of the present invention.

In addition, the rotary shaft 30 according to the present invention may have a shape such as a circular shape, a polygonal shape or a circular shape having a concavo-convex shape on the outer periphery like a general driving shaft, In order to smoothly secure the driving force by the rotation between the fastener 46 and the rotary shaft 30 and to reduce the weight of the drive shaft, it is configured such that the cross section perpendicular to the axial direction has a triangular or more polygonal shape having a hollow desirable.

The discharger main body (40) of the present invention

A plurality of blades (43) are provided on the shaft of the rotating shaft (30) and fixed or detachable from the coupling member (46). The plurality of blades (43) A first batt main body 41 and a second batt main body 41 separated and fixed to a predetermined portion of the connection plate 45. The first batt main body 41 and the second batt main body 41 are fixed to the connecting plate 45, As described above, the drive force of the rotary shaft 30 is transmitted to the fastening port 46 and the driving force of the fastening port 46 is transmitted to the connection plate 45 The first and second blind blade main bodies 41 and 42 fixed to the connection plate 45 and having the blind spot 43 on a predetermined portion of the outer circumferential surface are rotated to rotate the blind spot 43.

At this time, the connecting plate 45 may be configured to be detached or fixed to the fastening hole 46, and the connecting plate 45 may be configured to be movable or fixed on the axis of the rotating shaft 30, Or may be integrally formed with a certain portion of the inner circumferential surface of the discharger main body 40. As shown in FIG.

The connecting plate 45 is configured such that the first and second blindfold bodies 41 and 42 can be separated or fixed and can be fixed to the first and second blindfold bodies 41 and 42 in any form A polygon corresponding to the outer circumferential surface of the fastener 46, or a circular shape having a concavo-convex shape on the outer circumferential surface. In the present invention, a circular plate-like shape corresponding to the shape of the fastener 46 and the shape of the first and second blindfold bodies 41 and 42 is preferable.

6, the first and second blind blade main bodies 41 and 42 are separated or fixed by a plurality of bolts and nuts to a predetermined portion of the outer circumferential surface of the connecting plate 45, And a plurality of batting blades 43 separated or fixed by a plurality of bolts and nuts at a predetermined portion of the outer circumferential surface of the main bodies 41 and 42. It is possible to add or remove the batting blades 40 as necessary And it is easy to replace and repair due to partial failure of the batting blade 43 and the batting blade main body 40.

That is, a fastening hole 46 is fastened to the pivot shaft 30 by a fastening screw 32, and a certain portion of the inner circumferential surface of the connecting plate 45 is fixedly fastened to the fastening hole 46 The first and second blind blade main bodies 41 and 42 are fixedly fastened to a predetermined portion of the outer circumferential surface of the connection plate 45 so that the driving force of the rotating shaft 30 is transmitted to the blind blade 43 ).

The rotary shaft 30 and the blind blade main body 40 are kept fixed to each other at a predetermined position on one side of the blind blade main body 40 to be fastened to the rotary shaft 30, 7, when the pivotal shaft 30 and the blind blade main body 40 are separated from each other at a predetermined interval or completely, (Not shown) corresponding to the fastening groove 31 formed in the fastening hole 46 is fastened with the fastening screw 32.

More specifically, it is preferable that the blind flange main body 40 and the rotary shaft 30 are coupled to each other so that the blindfold main body 40 and the connecting plate 45 can be moved simultaneously, It is possible to change the arrangement of the connecting plate 45 and the blind blade main body 40 on the axes of the blindfold body 40 and the rotating shaft 30 according to the judgment of a person skilled in the art.

That is, the connecting plate 45 may be directly coupled to the rotary shaft 30 without using the fastener 46, and the rotary plate 30 may be rotated by receiving the rotary force of the rotary shaft 30.

The actuating gear 44 of the present invention

And is fixed to a certain end portion of one end of a rotary shaft 30 which is coupled to a certain portion of the other side of the auxiliary housing 23 so as to be rotatable, as shown in Fig. 5 And is provided with a driving force transmitted from the transmission gear 14 to rotate the rotary shaft 30 to provide a rotary force to the blind blade main body 44. [

At this time, the connection for transmitting the driving force between the transmission gear 14 provided at a certain portion of the power drive shaft 10 and the operating gear 45 provided at a certain portion of the other side of the rotating shaft 30, But it is preferable to construct it by using a chain.

In addition, when the transmission gear 14 and the operating gear 45 are connected by a chain, the driving force is smoothly transmitted by using the tensioner 22, and the tensioner 22 is as described above, and a detailed description thereof will be omitted .

The heater (50) of the present invention

As shown in FIG. 3, the supporting bar or supporting plate corresponding to a certain portion of the main housing 20 is provided with a pressing member It is possible to adjust the degree of the upper pressurization of the lid by controlling the weight of the heater 50 itself or the height of the control bar 51. In addition,

1 or 2, the soil to be clogged by the rotation of the pick-up blade 43 of the tractor clogging device according to the present invention is directed in the forward direction (same as the traveling direction of the tractor) of the clogging device for the tractor. It is also possible to further include an auxiliary plate 150 coupled to the main housing 20 or the support base 140 so as to be angularly adjustable.

Hereinafter, the operation sequence of the tractor cloaking device according to the present invention will be described.

First, the worker loosens the fastening screws 32 in accordance with the width of the desired teeth, and aligns the gap between the body blades 40. At this time. The connecting plate 45 and the fastening port 46 are moved together with the blind blade main body 40. The worker can remove the fastening tool 46 and the connecting plate by unscrewing the fastening screw 32 coupled to the rotary shaft 30 in accordance with the number of the teeth or remove the first and second articulated blades 41 and 42 It is possible to further add or remove the blast-furnace main body 40. [

Thereafter, the operator adjusts the height of the adjustment bar 51 of the heater 50 in accordance with the depth of the trough, activates the rotary of the tractor, and operates the tractor drive shaft connected to the tractor shoveling apparatus according to the present invention.

The power drive shaft 10 is rotated by the rotation of the tractor drive shaft so that the transmission gear 14 provided on the other side of the power drive shaft 10 is rotated while the operation gear 44 connected to the transmission gear 14 by a chain . Thereafter, the rotary shaft 30 is rotated by the rotation of the operating gear 44, the fastening holes 46 and the connecting plate 45 are rotated, and the blind blade main body 40 connected to the connecting plate 45 is rotated The blunt blade 43 fastened to the blind blade main body 40 rotates to form a groove on the ground.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It is possible to carry out various changes in the present invention.

100: tractor 110: rotary body
120: drive shaft 130: hydraulic cylinder
140: support 150: support plate
10: power drive shaft 11: first drive shaft
12: second drive shaft 13: gear box
14: transmission gear 15, 16: support member
20: main housing 21: gear housing
22: tensioner 23: auxiliary housing
30: Pivot shaft 31: Fastening groove
32: fastening screw 40:
41: first blind blade main body 42: first blind blade main body
43: blotting blade 44: operating gear
45: connecting plate 46: fastener
50: Loader 51: Operation bar

Claims (4)

A power drive shaft 10 connected to a drive shaft 120 of the tractor 100 at one side and having a transmission gear 14 at a certain end of the other end;
The tractor 100 or the rotary main body 110 is connected to a certain portion of the tractor 100 and is movable up and down by the operation of the hydraulic cylinder 130 fastened to a certain portion. A main housing 20 having
An auxiliary housing (23) having one end fixed to both ends of the main housing (20);
And an actuating gear (44) which is fixed at one end of the auxiliary housing (23) so as to be rotatable on a certain portion of the other side of the auxiliary housing (23) and receives a driving force of the transmission gear 30);
(40) provided on the shaft of the rotary shaft (30) and fastened to the rotary shaft (30) by a fastening member (46) A blade main body 40; And
And a heater (50) which is fastened to a predetermined portion of the main housing (20), and the other side presses and presses the upper part of the clogged ridge.
The method according to claim 1,
The power drive shaft (10)
A first drive shaft (11) connected to one side of the tractor (100) and a drive shaft (120) to receive a drive force;
A gear box 13 for receiving the driving force from the first driving shaft 11 to change the rotating direction or changing the rotating speed,
And a second drive shaft (12) connected to one side of the gear box (13) to receive a driving force and having a transmission gear (14) at a certain end of the other end.
The method according to claim 1,
The pivot shaft 30
And a plurality of coupling grooves (31) for fixing the coupling members (46) by fastening screws (32).
The method according to claim 1,
The clay bladder main body (40)
A coupling plate 45 having a plurality of blunt teeth 43 and fixed to the coupling member 46 to receive the driving force of the rotary shaft 30;
A first blind blade main body 41 separated or fixed to a predetermined portion of the connecting plate 45; And a second blast-furnace main body (42).

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