JPS5948001A - Reversible rotor in tractor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] In more detail, the present invention relates to a forward/reverse rotary that can be divided into a tractor that can achieve both forward and reverse rotation effects without replacing the rotary claw or mechanically reversing the rotation of the rotary. It is something.

When performing normal tillage with a tractor, rotate the rotary claws in the same direction as the tractor wheels,
The mechanism is such that the claws are driven down into the tilled soil from the upper front to the lower back, and this is called a down cassette and is applied to normal tillage work. On the other hand, when the rotary claws are rotated in the opposite direction to the wheels of the l-rafter, the claws are driven into the tilled soil from the upper rear, and the paddy soil is thrown upwards in the front, which is called anobakanoto. It is applied to ridge breaking, weeding, deep plowing, etc. To switch from the down-canoto mechanism to the anopakanoto mechanism, it is necessary to reverse the rotation of the rotary by changing gears, remove the pawl from the rotary shaft, and reinstall it in the opposite direction, which requires extra gear mechanism and worker labor. It was necessary.

To solve this inconvenience, for example, JP-A-57-
No. 83202 or Japanese Unexamined Patent Publication No. 57-9794.6 discloses a system in which two input shafts are protruded from one side of the rotary in opposite directions, and both input shafts are selectively connected to the PTO shaft on the tractor side. A mechanism is disclosed which is provided so as to be able to be coupled to the. When switching from a down cut mechanism to an upper cut mechanism on a tractor with this type of mechanism,
This can be achieved by removing part of the rotary from the main body, turning the tractor 180 degrees, and connecting the PTO shaft to the input shaft on the opposite side. However,
These conventional improved mechanisms require a rotary part with two input shafts, and when turning the tractor, the cover and tail wheel must also be removed and reinstalled in the opposite direction. , and 1 which is also equipped with a sensor mechanism.
In the case of a tractor, the levers and wires of the same sensor mechanism also need to be reattached, and the reality is that replacing them is extremely troublesome.

The present inventor has arrived at the present invention as a result of intensive studies to improve the above-mentioned prior art. Therefore, the purpose of the present invention is to 1- replace the tally claw in a forward/reverse rotary;
To provide a rotary mechanism that enables forward and reverse rotation without requiring any addition of a gear for reverse rotation.

That is, the present invention provides a rotary transmission case that is rotatable in the front and back directions about the rotary shaft as a fulcrum, and an input input that projects from the front end of the rotary mission case in the direction of the longitudinal extension of the case. By connecting the shaft to the P'TO shaft on the tractor side in a detachable manner, forward and reverse rotation can be obtained with a simple mechanism and operation. It is.

The gist of the present invention is that a rotary shaft is rotatably mounted horizontally at the rear end of a rotary transmission case that incorporates a transmission mechanism such as gears and chains in conjunction with the transmission mechanism, while the front end of the transmission case Then, a human power shaft whose one end is connected to the transmission mechanism is provided so as to protrude forward in a manner extending along the longitudinal direction of the transmission case, and a universal joint is connected to the PTO shaft on the tractor side. The transmission case is provided so that it can be detachably connected via the universal joint, and the transmission case is provided so as to be rotatable in the front-rear direction about the rotary shaft as a fulcrum by attaching and detaching the universal joint.

Specific implementations and examples of the present invention will be described below with reference to illustrative drawings. 1 to 5 are drawings showing a first embodiment, in which (1) shows a tractor main body, and (2) shows a rotary device connected to the rear of the tractor main body (1). A lift mechanism 09 is provided on the tractor main body (1), and a PTo shaft (3) is provided protruding rearward from the rear end of the vehicle body frame (7). The rotary device (2) also includes a rotary frame (4), a soil scattering prevention cover (5),
It mainly consists of a tail wheel (6) and a rotary part (8) to be described later, and the rotary frame (4) is connected to the body frame (7) of the tractor main body (1) via the lift mechanism 051. It is connected so that it can be raised and lowered.

The height of the tail wheel (6) can be adjusted via the adjustment mechanism (15), and the soil scattering prevention cover (
5) is provided so that the shock can be alleviated by a spring mechanism 06). On the other hand, the P and T O axes (3) protruding from the heavy frame (7) are connected to the input shaft (1) of the rotary part (+8) via the universal joint (+7).
9). The structure of the rotary part 081 will be explained with reference to both FIGS. 4 and 5. Figure 4 is a partially cutaway front view of the rotary part (18), and Figure 5 is a side view thereof. A bevel gear (20) is provided at the other end of the input shaft (1, 9+).
20) is provided so as to mesh with another bevel gear (2I) at right angles, and a sedge rocket wheel (2:(l) is provided on a shaft (221) that supports this bevel gear (21).

This sprocket wheel Q;3) is the rotary shaft C2
4) on the other sprocket wheel (2)
It becomes a pair with 5I, and a large number of rotary claws f271 (fourth
(only one is shown in the figure) are arranged radially. The transmission mechanism is built into the transmission case. That is, Che 7
There is a check/case (28) on the outside of r, 2+11, and a gear case (2 false) on the outside of the bevel gear (2u, (2',!:), but this gear case (flange α for 21 sword) ), and the gear case (29) is connected to the rotary frame (
4)) is regulated by (31) (first
figure). Returning to FIG. 1, since the direction in which the tractor is traveling is in the direction of arrow B, the drive wheels rotate in the direction of arrow B, and the rotary shaft (24) and rotary pawl (271) rotate in the B direction similarly to the drive wheels.

Figure 2 is a drawing showing the work of switching from forward rotation to reverse rotation. First, remove 311 in the state shown in Figure 1,
Still remove the input shaft 09) from the universal joint 07) and attach the rotary part (18) to the tractor body (1).
Separate from. At this time, for example, the gear case (32) (stand) that supports the rotary part θ8) is
A bar (33) or a shaft case (34) projecting laterally from the rotary shaft (29) is placed thereon and rotated in the direction of arrow C about the rotary shaft (24). Next, the lift mechanism 351
At the lift arm (11) and lift rod (1
2) through the operation of the rotary frame (4) and
The accompanying tail wheel and the like are raised upward, the drive wheels are driven, and the tractor main body is turned by 180°. FIG. 2 shows this state.

FIG. 3 is a diagram showing a state in which the tractor main body (1) and the rotary part (18) in the state shown in FIG. 2 are reconnected, and shows the rotary of the upper cut mechanism. That is, in Fig. 3, the direction of movement of the tractor is in the direction indicated by the arrow, and the direction of rotation of the drive wheels is in the direction of arrow C.
The rotation direction of 1 is the I3 direction as in FIG. 1, and is a reverse rotation.

4 to 8 are views showing the rotary part (18j), and FIGS. 4 and 5 show the rotary shaft (241 FIG. 6 shows a second embodiment of the rotary system, and FIG. 6 shows a side view of a part of the rotary rotary system called the Zytotribe system. As shown in Figures 6 and 7, the shaft (22) of the bevel gear (21) extends to one side, and the sprockets (23), (25!) and the chino (26) are housed in the chino case (281'). .Also, the axis (22
) is staged by l#l+case C341. FIG. 8 shows a third embodiment, and is a side view of a quick left drive type rotary.

In the example of FIG. 8, the connecting shaft a! 1) is long, and the bevel gear (20) at the tip thereof directly meshes with the bevel gear (2J) provided on the rotary shaft (24). Therefore,
In this example, Sprockeno) (231, (25+) and Cheno (2G) are unnecessary.

As explained above, compared to the prior art, the rotary mechanism of the present invention does not require the input shaft on the rotary transmission side to protrude in two directions, and can still control the direction of the tractor body including the tail wheel using a simple force mechanism. A rotary that can rotate in both forward and reverse directions can be obtained by a simple operation of just changing the rotation, and manufacturing costs and working labor can be significantly reduced.

[Brief explanation of the drawing]

1 to 8 show a first embodiment of the present invention.
The figure is a side view of the normal rotation state, Fig. 2 is a side view showing the transition state from normal rotation to reverse rotation, Fig. 3 is a side view of the reverse rotation state ρ, and Figs. 4 and 8 show a part of the rotary. Fig. 4 is a front view of the center drive system, Fig. 5 is a side view thereof, Fig. 6 is a front view of the second embodiment of the side drive system, Fig. 7 is a side view thereof, and Fig. 8 is a front view of the side drive system. FIG. 7 is a side view of a tie-left drive system, showing a third embodiment. (1) Tractor body, (2) rotary device, (31
1) TO axis, (4) rotary frame, (5) soil blowout prevention 11 cover, (6) tail wheel, (7) biological frame, (
8) Boss, (9) Engagement arm, (10) Engagement claw, (11) Lift arm, (I2) Lift rod, (13+, Q
J tail wheel arm, (15) adjustment mechanism, (lfil spring mechanism, (17) universal joint, dry 1-tally part, 09) input shaft, (2+11, (2+1 bevel gear), (22) shaft, (23) ) sprocket wheel,
(24) Rotor 'J -11ql+, (25) Sprocket wheel, (21i1 chain, (27) Rotary claw, (28) Cheno case, +2! +1 gear case, 1
3111 Norange, (31) bolt, (321 savok, (331 bar, (, round 1 (offer case), (35) lift mechanism. Patent applicant Tsukushi Co., Ltd. ?Y (?1 No. 31'4 Fig. 5, 61 N-

Claims (1)

[Claims] (1) A rotary shaft is rotatably mounted horizontally in conjunction with the transmission mechanism at the rear end of a rotary mission case that houses a transmission mechanism such as gears and a chino, while the front end of the transmission case and one end thereof An input shaft that connects to the transmission mechanism is provided protruding forward so as to extend along the longitudinal direction of the transmission case, and the input shaft is connected to the PTO shaft on the tractor side via a universal joint. A forward/reverse rotary rotary for a tractor, which is provided so as to be connectable and detachable, and the transmission case is provided to be freely rotatable in the front and back directions about the rotary shaft as a fulcrum through the attachment and detachment of the universal joint.