JPH0139721B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention provides a center drive rotary rotary system in which left and right rotors are attached to rotor attachment shafts that are pivotally supported at the bottom of a drive chain case. The present invention relates to a power extraction device configured to separately extract power for driving a planting mechanism to perform planting work.

As such a power extraction device, Utility Model Application No. 55-119226
This is a transmission case with the same length on both the left and right sides of the transmission case, which is installed at the top of the drive chain case and houses a transmission gear mechanism that transmits the power received from the traction machine to the rotor mounting shaft. A PTO is installed on the intermediate shaft, which is driven by a transmission gear mechanism and is pivotally supported in the left and right direction inside the transmission case.
A PTO shaft is provided in a removable manner, and the tip of the PTO shaft is simply protruded outward from one protrusion frame, and the left and right protrusion frames can be connected to a traction machine. The shaft directly transmits power to a working machine other than the rotary, and since the rotary rotates at high speed, a special speed reduction mechanism was required on the working machine side.

The present invention aims to eliminate the drawbacks of the above-mentioned conventional device and to firmly mount a motive force extraction case in which a speed reduction mechanism is installed, and has taken the following technical measures.

That is, a rotor mounting shaft 4 to which a sprocket wheel 3 is attached is rotatably supported at the lower part of the drive chain case 2, and a rotor 64 is mounted on both left and right sides of the rotor mounting shaft 4, and at the upper part of the drive chain case 2, A transmission case 1 is provided, which houses an intermediate shaft 14 to which a sprocket wheel 17 for transmitting power to the sprocket wheel 3 of the rotor mounting shaft 4 is attached, and a transmission gear mechanism for transmission driving the intermediate shaft 14. Long and short protruding frames 20 and 19 are provided on both left and right sides of the frame, the longer protruding frame 20 is fixed with a connecting frame 24 for attaching the transmission case 1 to the towing vehicle body, and the shorter protruding frame 19 is attached to the intermediate protruding frame 20. A cylindrical frame houses a PTO shaft 38 that is transmitted and rotated integrally with the shaft 14, and the short protruding frame 19 has the above-mentioned
A connection frame 24 that fixes a power take-off case 26 that houses a deceleration transmission mechanism that is transmitted and rotated from a PTO shaft 38 and connects the power take-off case 26 to the towing vehicle body.
This is the configuration of a power take-off device in a center drive rotary equipped with.

With this configuration, the present invention was able to obtain the following technical effects. That is, a power take-off case 26 in which a deceleration transmission mechanism is installed is fixed to a long protrusion frame 20 and a short protrusion frame 19 on the left and right sides of the transmission case 1, respectively.
Since the transmission case 1 is connected to the towing vehicle body by the connection frame 24 fixed to the frame 24 and the connection frame 24 fixed to the long protruding frame 20, the power take-off case 26 is firmly attached, and the transmission The work machine to be used here has a reduction transmission, which allows the work machine to be made compact.Moreover, in order to transmit the power via the power take-off case 26, the power is transmitted from an appropriate location away from the axis of the PTO shaft 38. It produces effects that can be communicated.

Next, the specific structure will be explained based on an example shown in the drawings.As shown in FIG.
A drive chain case 2 is connected to the lower part of the transmission case 1 provided with a, and a rotor mounting shaft 4 with a sprocket wheel 3 fitted in the center is connected to the lower part of the drive chain case 2 with bearings 5, 5. It is pivoted. The transmission gear mechanism 6 for driving the sprocket wheel 3 is assembled with a mounting foot 7a that can be inserted into the opening 1a of the transmission case 1, and a bolt that matches the mounting flange 1b formed around the opening 1a. A bearing lid 7 is provided with a lid portion 7b that can be attached to the bearing 10, 11.
Bearings 12, 1 are pivoted to the mounting foot 7a.
A bevel gear 1 is provided on the input shaft 9, and a bevel gear 15 is fitted onto an intermediate shaft 14 which is pivotally supported at the input shaft 9.
6, and the drive chain is wound around the sprocket wheel 17 fitted on the intermediate shaft 14 and the sprocket wheel 3 of the rotor mounting shaft 4.

Then, the left and right sides of the transmission case 1 are opened, the short protrusion frame 19 and the long protrusion frame 20 are welded to the left and right openings 1c and 1d, and the mounting seat 21 provided with the hole 21a is attached to the outside of the short protrusion frame 19. The left and right connecting frames 24, 24 are welded to the ends, and the auxiliary pipe 22 is attached to the outer end of this short protrusion frame 19 with bolts 23, and the left and right connecting frames 24, 24 are attached to the outer ends of the auxiliary pipe 22 and the long protrusion frame 20, respectively. It is configured to be connected to the rear of the towing machine by means of the following.

Then, as shown in Fig. 2, a power take-off case 26 is installed in which a deceleration mechanism is housed and has a case attachment seat 26a that can be attached to the attachment seat 21 with the auxiliary pipe 22 removed with bolts 25. The output rotating shaft 43 is configured to drive a working machine such as a transplanter. Furthermore, this rotating shaft 43
Another power take-off shaft 27, which is transmitted from The deceleration drive mechanism 28 is configured to be connectable to the transmission gear mechanism 6.

That is, the illustrated power take-off case 26 includes a case main body 29 that includes a case mounting seat 26a, and a bearing body 3 that is attached to a work machine frame 32 with a power take-off shaft 27 supported by bearings 30 and 31.
3, and a chain case 34 that joins the case body 29 and the bearing body 33.

In addition, the deceleration drive mechanism 28 for power extraction includes a rotating shaft 3 supported by a bearing 35 on the case body 29.
PTO shaft 38 whose inner end of PTO shaft 6 is exposed through the hole 21a of the mounting seat 21 into the short protrusion frame 19, inserted into the shaft hole 14a of the intermediate shaft 14, and attached with the connecting pin 37.
The spline boss 38a (which may be formed integrally with the intermediate shaft 14) and the joint tube 40 attached to the rotating shaft 36 with a connecting pin 39 are spline-fitted, and one end is inserted into the chain case 34. A rotating shaft 43 is pivotally supported on the case body 29 by bearings 41 and 42, and a chain 46 is attached to a sprocket foil 44 loosely fitted on the rotating shaft 43 and a sprocket foil 45 fitted on the rotating shaft 36. The clutch pawl 47a of the clutch shifter 47 is fitted around the rotating shaft 43 so as to be movable only in the axial direction, and the clutch pawl 47a of the clutch shifter 47 is provided so as to be removable from the clutch pawl 44a of the sprocket foil 44. A chain 50 is wound around the sprocket wheel 48 and the sprocket wheel 49 fitted on the power take-off shaft 27.

In the illustrated example, another power take-off shaft 51 is further supported by the bearing body 33. The power take-off device described above is applied to the planting machine illustrated in FIGS. 3 and 4 as a working machine. A beak-shaped planting claw 55 that can freely open and close the left and right claw pieces 54a, 54b is pivoted to the lower part of the parallel link-shaped planting links 56, 56.
The upper part of 56 is pivotally connected to the working machine frame 32 through rotating shafts 57, 57, and the drive arm 58 fixed to one of the rotating shafts 57 and the arm 52 are connected through a link 59 to extract power. As the shaft 27 rotates, the planting links 56 and 56 move together with the drive arm 58, and the planting claw 55 bites into the upper surface of the ridge 62 from the seedling receiving position directly below the seedling receiving cylinder 61 of the rotating seedling receiving table 60. It is configured so that it can be moved up and down to the desired position.

In addition, the reference numeral 63 is a seedling stand on which a large number of seedlings are placed, and the seedlings on the seedling stand 63 are placed in the seedling receiver 61 by a person.
When the seedling receiver 61 is placed in the seedling receiver 61, the bottom of the seedling receiver 61 directly above the planting claw 55 that has reached the seedling receiver position opens.
The inner flute falls into the planting claw 55. Also, the rotors 6 installed on the left and right sides of the rotor installation shaft 4
A ridge erector 65 is attached to the tiller 66 so as to be located at the rear of the ridges 4 and 64, and the sides of the ridges 62 are compressed by pressure rolls 67 and 67.

Therefore, in order to perform only plowing work, the transmission gear mechanism 6 can be operated by attaching the auxiliary pipe 22 to the reinforcing frame 21 as shown in FIG. The rotors 64, 64 are rotationally driven via the rotor drive shaft 4. or,
In order to perform, for example, planting of seedlings together with this plowing work, the auxiliary pipe 22 is removed from the mounting seat 21.
The case body 29 of the power extraction case 26 is attached to the reinforcing frame 2
1 with bolts 25 . By connecting the rotating shaft 36 of , the rotating shaft 4 of the power extraction drive mechanism 28
Power take-off shaft 2 further transmitted from 3 through a chain 50
7 is rotated, and the planting links 56, 56 are then reciprocated up and down as described above to perform the planting operation. In this way, the planting work machine is equipped with special equipment because the power is transmitted from the deceleration rotation shaft that transmits the rotor to the power take-off case 26 side in which the deceleration mechanism provided on the rotor side is installed. There is no need to provide a speed reduction mechanism, the structure can be made compact, and since the power take-off case 26 is attached to the towing vehicle body side by the connection frame 24, the work implement itself can be strongly supported.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional plan view of one embodiment of the present invention, showing a state in which a power mounting case is not attached;
Figure 2 is a cross-sectional plan view of the main parts of the invention with the power extraction case attached, Figure 3 is a side view of the invention applied to a planting machine, and Figure 4 is a plan view of Figure 3. be. Description of symbols: 1 is a transmission case, 2 is a drive chain case, 3 is a sprocket wheel, 4 is a rotor mounting shaft, 14 is an intermediate shaft, 17 is a sprocket wheel,
19 is a short protruding frame, 20 is a long protruding frame, 24 is a connecting frame, 26 is a power take-off case, 38 is a PTO shaft,
64 indicates a rotor.

Claims (1)

[Claims] 1. A rotor mounting shaft 4 with a sprocket wheel 3 mounted thereon is rotatably supported at the lower part of the drive chain case 2, and a rotor 64 is mounted on both left and right sides of the rotor mounting shaft 4. Sprocket wheel 3 of rotor mounting shaft 4
A transmission case 1 is provided, which houses an intermediate shaft 14 to which a sprocket wheel 17 for transmitting power is attached, and a transmission gear mechanism for transmission driving the intermediate shaft 14. Long and short protruding frames 20 are provided on both left and right sides of the transmission case 1. , 19, a connecting frame 24 for attaching the transmission case 1 to the towing vehicle body is fixed to the longer protruding frame 20, and the shorter protruding frame 19 is transmitted and rotated integrally with the intermediate shaft 14. It is a cylindrical frame that houses the PTO shaft 38, and the short protruding frame 19 has the above-mentioned
A connection frame 24 that fixes a power take-off case 26 that houses a deceleration transmission mechanism that is transmitted and rotated from a PTO shaft 38 and connects the power take-off case 26 to the towing vehicle body.
A power take-off device for a center drive rotary.