JP2553009Y2 - Tillage claw drive of rotary work machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tilling claw driving device of a rotary working machine for rotating a claw group between two side drive type transmission cases.

[0002]

2. Description of the Related Art Conventionally, in a rotary working machine configured to be capable of transmitting power from a central input gear case to both side drive type transmission cases on both sides for driving a pawl shaft, respectively.
2. Description of the Related Art There is known a structure in which a claw shaft between both transmission cases is divided so that the two transmission cases can be driven to rotate forward, respectively, so that a tillage operation can be performed as a so-called twin cut rotary.

[0003]

[Problems to be solved by the invention] However, the required horsepower during plowing work is large, and foreign matter is easily caught between the two claw shafts that are divided and normally rotated, and a safety shear pin for overload is provided. However, the transmission case is damaged without the action.

[0004]

SUMMARY OF THE INVENTION The present invention has been devised to solve such a problem and to further improve the fine soil effect. Therefore, the forward and reverse rotations from the input gear case to the two transmission cases respectively. The power transmission is enabled, and at least four or more pawl cylinders each having a plurality of pawls are respectively mounted between the two power transmission cases with the same axis as the shaft center, and the both transmission cases are driven forward and reverse. The inner pawl cylinder adjacent to the pawl shaft cylinder can be driven in reverse and forward rotations, respectively.

[0005]

Therefore, in each pawl shaft cylinder between the two transmission cases, the both pawl shaft cylinders at both ends are driven forward and reverse by the two transmission cases, respectively, and the respective inner pawl shaft cylinders are connected to the two pawl shaft cylinders. It will be driven in reverse and forward by the claw shaft cylinder, and will be driven alternately forward and reverse on the same axis,
The required power is reduced, and tillage work can be performed in which the fine soil effect is further improved.

[0006]

FIG. 1 shows a main part of a rotary working machine connected to a rear part of an agricultural tractor. The rotary working machine is connected to a rear end of both transmission cylinders 5a and 5b extending right and left from both sides of a central input gear case 2 transmitted from the agricultural tractor. Are connected to the upper portions of both side drive type transmission cases 1a and 1b vertically suspended in parallel with each other, and the forward rotation side bevel gear 7a and the reverse rotation side bevel gear 7 which mesh with the transmission bevel gear 6 in the input gear case 2 and rotate in the opposite direction.
b, transmission shafts 8a, 8b suspended in transmission cylinders 5a, 5b.
And a forward sprocket 9a and a reverse sprocket 9b, which are mounted in the lower portions of both transmission cases 1a and 1b, are attached to the transmission shafts 8a and 8b.
a and 10b, respectively, between the forward-rotating claw shaft 11a and the reverse-rotating claw shaft 11b, which extend in the same axial direction from the forward-rotating sprocket 9a and the reverse-rotating sprocket 9b. A shaft is constructed by interposing a core shaft or a shaft type connector.

[0007] Four claw shaft cylinders 4a to 4d each having a plurality of claws 3 are fitted on both claw shafts 11a and 11b between the two transmission cases 1a and 1b.
The claw shaft tube 4 is provided at the base side of the claw shafts 11a and 11b to be shifted.
a and 4d are engaged so as to rotate together, and the claw shaft 11
The claw shaft cylinders 4b and 4 whose ends are adjacent to the tip sides of
c is loosely fitted with a bearing interposed therebetween, and reduction gear cases 12a and 12b are interposed between the claw shaft cylinders 4a and 4b and the claw shaft cylinders 4b and 4c, respectively. Is a claw shaft 1 as shown in FIG.
The sun gears 13a and 11b, the three planetary gears 14 and the ring gear 15 are provided, respectively, and the claw shaft cylinders 4b and 4c are rotated in the deceleration state from the claw shaft cylinders 4a and 4d on both sides driven forward and reverse, respectively. It is configured such that it can be driven forward.

Therefore, the input gear case 2 is driven so that the claw shaft 11a rotates forward and the claw shaft 11b rotates in the reverse direction, so that the two claw shaft cylinders 4a and 4d at both ends are rotated in the forward and reverse directions. , 11b are driven forward and reverse, respectively, and the inner pawl shaft cylinders 4b, 4c are driven reversely and forward, respectively, by the pawl shaft cylinders 4a, 4d. Transmission case 1
The claw shaft cylinders that are side-driven between a and 1b are alternately driven in the forward and reverse directions, so that the required power is reduced and the plowing work in which the fine soil effect is further improved can be performed.

[0009]

[Effects of the Invention] As described above, the present invention provides two transmission cases 1
a and 1b are divided into at least four or more pawl shaft cylinders 4a to 4d, and both pawl shaft cylinders 4 driven forward and reverse from both transmission cases 1a and 1b.
From a and 4b, the adjacent inner claw shaft cylinders 4b and 4c can be driven to rotate in the reverse and forward directions, respectively, so that the claw shaft cylinders 4a to 4d can be alternately driven to rotate forward and reverse on the same axis. Therefore, the required power is reduced, and the tillage work can be performed in which the fine soil effect is further improved.
It has the advantage that conventional problems can be resolved and can be suitably implemented.

[Brief description of the drawings]

FIG. 1 is a rear view showing a main part of an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view showing a part of FIG. 1 in section.

[Explanation of symbols]

 1a Transmission case 1b Transmission case 2 Input gear case 3 Claw 4a Claw shaft tube 4b Claw shaft tube 4c Claw shaft tube 4d Claw shaft tube

Claims (1)

(57) [Scope of request for utility model registration] 1. A rotary working machine configured to be capable of transmitting power from a central input gear case 2 to both side drive type transmission cases 1a and 1b on both sides for driving a claw shaft, respectively. 1b
The transmission cases 1a,
At least four pawl shaft cylinders 4a to 4d each having a plurality of pawls 3 are respectively mounted between the transmission cases 1a and 1b. A tillage claw driving device characterized in that the claw shaft cylinders 4b, 4c on the inner side adjacent to the claw shaft cylinders 4a, 4d can be driven in reverse and forward rotations, respectively.