JPH0742247Y2 - Farm work machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an agricultural work machine such as a crushing work machine, which is mounted on the power side of a tractor or the like. More specifically,
An agricultural working machine having a folding device.

(Prior Art) As an "agricultural work machine" having a folding device for a work machine,
As shown in FIG. 5, there is known the Japanese Utility Model Laid-Open No. 64-28813. The agricultural work machine includes a main body frame having a mission having an input shaft, and an earth work unit that is pivotally attached to at least one end of the main body frame in a vertically rotatable manner and is driven by power from the mission. An agricultural working machine comprising: a working machine provided with the main body frame; and a cylinder device that is connected between the main body frame and the working machine to rotate the working machine in a vertical direction. When traveling or storing in a storage cabinet, the cylinder device is operated to rotate the working machine largely upward, thereby reducing the lateral width of the machine. "

(Problems to be Solved by the Invention) However, in the folding device for the conventional crushing work machine shown in FIG. 5, the lifting of the three-point link is fully raised as shown by the two-dot chain line in FIG. In addition, there is a problem that it may not be able to be mounted because it leans forward and hits the safety frame or the cabin of the tractor with the safety frame or the tractor with the cabin.

(Means for Solving the Problems) The present invention is directed to a machine frame that is provided with an input shaft and outputs the driving force input from the input shaft, a shaft that transmits the driving force from the machine frame, and a drive from the shaft. It consists of a transmission case that transmits force, and a working part that is driven by the output from the transmission case and that is attached to the output side of the machine frame so that it can be bent horizontally and backward on the side opposite to the power side. The agricultural work machine, which is provided closer to the input shaft than the center of the shaft and transmits the driving force to the working unit at the same position, and the machine frame which is provided with the input shaft and outputs the driving force input from the input shaft. And an auxiliary machine frame that is fixed to the machine frame on the reaction side of the machine frame and a working unit, and is rotatably horizontally and backward to the side opposite to the power side through a fixed shaft. Auxiliary flap attached to The drive case, which is provided closer to the machine frame than the center of the working unit, transmits the output from the machine frame through a disengageable clutch and at the same position to the working unit, and the auxiliary machine frame and auxiliary Provided is an agricultural working machine characterized by comprising a telescopic expansion / contraction means for connecting the frame to each of the reaction sides.

(Operation) When it is necessary to narrow the width of the working machine, the working unit is pulled by, for example, contracting the expansion / contraction means. Then, the working unit is moved to the anti-tractor side of the machine frame while maintaining the horizontal state.

(Embodiment) FIG. 1 is a side view showing a folding operation use state of an embodiment for carrying out the present invention on a crushing work machine, FIG. 2 is a plan view showing the same, and FIG. The following description will be given with reference to FIG. 4, which shows a front view of the same extended state.

(1) is the input shaft that takes in the power by attaching it to the PTO shaft of the tractor, which is the power, via a universal joint, and (2) is the machine frame of the farm work machine. The machine frame (2) has a cylindrical shape and has a shaft (3
0) is installed, and the input shaft (1) is projecting from the center of the input shaft (1) in a direction substantially perpendicular to the machine frame (2) in the direction of the tractor to be installed. (3) is a power transmission unit.
The power transmission unit (3) is provided at the intersection of the shaft (30) and the input shaft (1), and meshes with the bevel gears (6) and (6) installed at each end so that power can be transmitted. (12) is a mounting frame. Mounting frame (1
2), the base is fixed to the machine frame (2) respectively, and the lower link pins (11) and (11) are laterally attached to both protruding tips.
Make it protrude. (41) is the top mast. The base of the top mast (41) is fixed on the power transmission unit (3), and the top link pin (29) is attached to the tip thereof. The top link pin (29) and the lower link pin (11) are connected to the top link and the lower link of the tractor, respectively, and are mounted so as to be movable in the vertical direction. (24) is an auxiliary machine frame. The auxiliary machine casing (24) is positioned and fixed behind the machine casing (2).

(25) is an auxiliary frame, (4) is a working unit, and in this embodiment, a crushing work unit. The auxiliary frame (25) has a cylindrical shape and suspends the working unit (4). Auxiliary frame (25)
As shown in FIG. 3 and FIG. 4, when the agricultural working machine is set in the operating state, the is installed so as to be located on the extension of the auxiliary machine frame (24) in the longitudinal direction.

Supporting portions (27) are provided at both ends of the auxiliary machine frame (24), and supporting portions (27) are also provided at the end portions of the auxiliary frame (25). The auxiliary machine frame (24) and the auxiliary frame (25) are made of pins, and the fixed shaft (32) provided in the vertical direction is passed through the overlapping portion of the support portion (26) and the support portion (27) as a rotary shaft. , The state shown by the solid line in FIG. 3 is horizontally and rotatably connected backward from the state shown by the two-dot chain line.

Clutch (10) is provided at both ends of the machine casing (1). The clutch (10) is a dog clutch in this embodiment. The shaft (30) is fixed to one side of the clutch (10) and the shaft (20) is fixed to the other side. The shaft (22)
Guided to the transmission case (5).

The working unit (4) is provided below the diagonal tractor of the auxiliary frame (25) with a plurality of crushed earth shafts (17) installed parallel to the auxiliary frame (25) and around the crushed earth shaft (17). It consists of individual crushed earth claws (16), a crushed earth cover installed so as to cover the upper tip of the crushed earth claw (16), and a transmission case (5) connecting the shaft (22) and the crushed earth shaft (17). The working part (4) has auxiliary frames (25) and (25) at both ends at the same time.
It is hung on each. Crushed soil shaft (17) is a transmission case (5)
The driving force of the shaft (22) is transmitted via the. That is, the sprocket (8) fixed to the tip of the shaft (22) and the sprocket (9) fixed to the tip of the crushing earth shaft (17) are bridged with the chain (7) in the transmission case (5). Since the transmission case (5), which is likely to become a heavy object, is provided close to the machine casing (2) in this embodiment,
Excellent weight balance of the entire agricultural work machine.

(28) is an expansion / contraction means. The expansion / contraction means (28) comprises a hydraulic cylinder in this embodiment. One end of the expansion / contraction means (28) is fixed to the auxiliary machine frame (24) side, the other end is fixed to the auxiliary frame (25) side, and is fixed to the respective anti-tractor sides when mounted on the tractor.

Next, the operation of the embodiment will be described. The driving force from the tractor causes the input shaft (1) to rotate via the transmission shaft. Then, the driving force is transmitted to the shaft (30) by the bevel gears (6) and (6) and further transmitted to the shaft (22), and the crushing earth shaft (17) is also rotated via the transmission case (5). Therefore, the crushing work is performed by rotating the crushing claws (16) planted on the crushing shaft (17).

When it is necessary to narrow the width of the work equipment such as when passing the road or storing the farm work equipment, perform the following operations. That is, the expansion / contraction means (28) is contracted. Then, the auxiliary machine frame (24) and the auxiliary frame (25) are rotatably connected via the fixed shaft (32). Therefore, as shown by the chain double-dashed line in FIG. 3, when the fixed shaft (32) is rotated about the center of rotation, the rear side of the side opposite to the tractor is kept horizontal while maintaining the horizontal state in FIG. 1 and FIG. Move as shown in. Due to this movement, the meshing of the clutch (10) is released, and the driving force from the shaft (30) is not transmitted to the crushing shaft (17). Telescopic means (28) when operating the work machine
Auxiliary machine frame (24) Auxiliary frame (25)
Is connected on a straight line and the clutch (10) is engaged.

(Effect of the Invention) Therefore, in this invention, when it is necessary to narrow the width of the working machine, the working unit is pulled by contracting the expansion / contraction means. Then, the working unit is moved to the anti-tractor side of the machine frame while maintaining the horizontal state. Therefore, in the conventional example, it is possible to solve the problem that the working unit may be tilted forward and may not be attached to the safety frame or the cabin of the tractor with the safety frame or the tractor with the cabin.

[Brief description of drawings]

FIG. 1 is a side view of the embodiment for carrying out the present invention on a crushing work machine in a folding operation use state, and FIG. 2 is a plan view of the same.
3 is a plan view of the embodiment, FIG. 4 is a sectional front view of the same portion,
FIG. 5 is a side view of a conventional example. (1) …… Input shaft, (2) …… machine frame, (4) …… working part, (5) …… transmission case, (10) …… clutch, (2
2) …… Shaft, (24) …… Auxiliary machine frame, (25) …… Auxiliary frame, (32) …… Fixed shaft, (28) …… Expansion / contraction means,

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Setsuo Yoneuchi Yamamoto No. 1 Satonosawa, Sanbongi, Towada City, Aomori Prefecture 259 Inside Sasaki Agricultural Machinery Co., Ltd. (56) Bibliography 63-143106 Flat 1-163907 (JP, U)

Claims (2)

[Scope of utility model registration request] 1. A machine frame which is provided with an input shaft and outputs a driving force inputted from the input shaft, a shaft which transmits a driving force from the machine frame, and a transmission case which transmits a driving force from the shaft. It consists of a working part that is driven by the output from the transmission case and is attached to the output side of the machine frame so that it can be bent horizontally and backward on the side opposite to the power side, and the transmission case is closer to the input shaft than the center of the working part. An agricultural working machine, which is provided and transmits a driving force to a working unit at the same position. 2. A machine frame which is provided with an input shaft and outputs a driving force inputted from the input shaft, an auxiliary machine frame fixed to the machine frame on a reaction force side of the machine frame, and supporting a working section. An auxiliary frame that is attached to the auxiliary machine frame horizontally and rearwardly on the side opposite to the power side via a fixed shaft,
A transmission case, which is provided closer to the machine frame than the center of the working unit, transmits the output from the machine frame through a disengageable clutch and transmits the output to the working unit at the same position, and the auxiliary machine frame and the auxiliary frame. An agricultural working machine characterized in that it comprises elastic means for connecting and contracting on the side of each reaction force.