JPS61185121A - Foldable mechanism of hay reversal machine - 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 A8 Objectives of the Invention A. Field of Application The present invention seeks to provide a folding mechanism with a novel configuration for a pasture turning machine.

Conventional technology and its problems Previously provided grass turning machines are large and have a wide working width of 4 to 6 meters, and when transporting on the road or storing, it is necessary to fold the machine and make the width of the machine narrow. be. There are two types of folding methods: an upward folding method and a backward (horizontal) folding method, and the former is the mainstream in Japan. There are two types: a hydraulic folding type) and a spring-based type (manual folding type).However, this type that uses tractor hydraulic pressure can be used if the hydraulic lever is accidentally operated, i.e. if the hydraulic operating lever touches clothing or if the 6P interlocking switching lever is turned off. There were problems such as the IC rotor being folded during work (while the rotor was rotating) due to operating the lever without switching, resulting in sudden damage to the aircraft.

B0 Structure of the Invention A0 Means for Solving the Problem The present application attempts to solve the above-mentioned problem by using the following structure.

That is, the present invention is a folding mechanism for a grass turning machine that utilizes hydraulic pressure, which is the cause of accidents, and controls the hydraulic system and P, T, and 0 rotations.

EXAMPLE 1 An example of the folding mechanism 1 of the first invention is as follows. This pasture inverting machine has a foldable tool bar in which a second tool bar 5 is connected to the outer end of a first tool bar 6 connected to the left and right sides of a main box 2 via a support shaft 4 so as to be able to rise and fall freely. - the first toolbar 6 and the second toolbar 6;
A single acting cylinder 6 for raising and lowering the second tool bar 5t is disposed between the tool bars 5, and the input shaft 8 connected to the rotor drive shaft 7 via the main box 2 is bevel driven with the input shaft 8A. It is divided into side shafts 8B, and these shafts 8A.

8B is fixed to the input side pawl clutch 8 which engages and disengages with each other, and a bevel drive side pawl clutch 8 pin is attached so as to be movable forward and backward in the longitudinal direction of the shaft. The drive-side pawl clutch 8B' is connected to the piston 1 of the hydraulic cylinder 10 which acts along the longitudinal direction of the input shaft 8 through the hook 9t.
0A, and the single-acting cylinder 6 and the hydraulic cylinder 10 communicate with a tractor hydraulic pump 11 through the same pipe system.

An embodiment of the folding mechanism 1' of the second invention is as follows. A pasture inversion machine has a foldable tool bar which is formed by connecting a second tool bar to the outer end of a first tool bar that is connected to the left and right sides of a main box via a support shaft so that the second tool bar can be raised and lowered freely. A single acting cylinder 6 is disposed between the two tool bars to raise and lower the second tool bar, and the input shaft 8 connected to the rotor drive shaft via the main box has an input side shaft 8A and a bevel drive side shaft 8B. An input-side pawl clutch 8A' that engages and disengages with each other is fixed to the corresponding surfaces of these shafts 8A and 8B, and a bevel drive-side pawl clutch 8B' is attached so that it can move forward and backward in the longitudinal direction of the shaft. has been done. The input side shaft 8A and the bevel drive side shaft 8B are held in a sealed state by a housing 12, and this housing 12 has a hydraulic pressure between the input side pawl clutch 8A' and the drive side pawl clutch 8B'. The hydraulic socket 12A is opened so that the hydraulic socket 12A acts on the single acting cylinder 6, and the hydraulic socket 12A and the single acting cylinder 6 are connected to the tractor hydraulic pump 11 through the same pipe system. In addition, 18
19 is a return spring that engages each pawl clutch when the hydraulic cylinder 10'hhIL is under no load, and 19 is a bevel drive-side pawl that acts against the disc spring 19AK as the hydraulic cylinder 10Vc is loaded. This is a brake lining installed on the clutch side. As is clear from FIGS. 1 and 2, the second toolbar 5 has the following functions:
When the second tool bar 5 is erected, the tip of the second tool bar 5 is configured to be located slightly inward from the support shaft 4. Also,! In the two-engine FIAJ/c, the hydraulic cylinder 10 is provided in a housing 12 that encloses the input shaft 8, but it is of course possible to construct it separately. In the figure, 21 indicates a three-point frame, and 22 indicates a main 7 frame.

Furthermore, as mentioned above, the first. In addition to the second invention, the following configuration can be used. That is, referring to FIGS. 5 and 6, a second tool bar 5 is connected to the outer end of a first tool bar 6 which is connected to the left and right sides of the main box 2 via a support shaft 4 so as to be able to rise and fall freely. In the pasture turning machine having a folding tool bar, a single acting cylinder 6 is disposed between the first tool bar 6 and the second tool bar 5 for raising and lowering the second tool bar 5, and is inserted into the main box 2. input shaft and rotor drive shaft 7
are connected via a bevel gear 16 on the input shaft side and a bevel gear 14 on the rotor drive shaft side, and the claw clutch 15 fitted on the rotor drive shaft 7 is connected to the claw clutch 14A provided with the bevel gear 14&c on the rotor drive shaft side. The pawl clutch 15 is configured to be engageable and disengageable, and the pawl clutch 15 is connected to a shift arm 1 connected to a clutch lever 16 provided in the main box 2.
7A, connected to the shift 17 and the clutch lever 16
A hydraulic cylinder 20 is connected to the hydraulic cylinder 20, and the hydraulic cylinder 20, the single acting cylinder 6, and the m-piping system communicate with the tractor hydraulic pump 11.

Ha0 effect I will explain it along with the effects.

Effects of the C0 invention A: When the hydraulic pressure is unloaded, each pawl clutch engages due to the action of a return spring, etc.
Drive is transmitted to the rotor drive shaft via the main box.

In the case where hydraulic pressure is applied during rotation due to incorrect operation ■ In the first invention, the pressure difference between the single-acting cylinder 6 and the hydraulic cylinder 10,
In the second invention, the single acting cylinder 6 and the pawl clutch 8 have 8B'
Due to the difference in the hydraulic pressure between the hydraulic cylinder 10 and the pawl clutch 8A, the hydraulic pressure between the 8 pins operates first.

■ As a result, each pawl clutch is disengaged and the drive rotation is cut off.

■ At this time, if a brake lining is used, one side of the pawl clutch will come into contact with this brake lining, stopping the rotation of each rotor due to inertia.
Safety will be further improved.

(2) Thereafter, the single-acting cylinder 6 acts to fold the second tool bar upward using the support shaft as a rotational fulcrum.

When hydraulic pressure is free ■　It operates as follows due to the pressure difference mentioned above.

■ The pawl clutch can be released from the brake lining by the action of a disc spring or return spring.

■ The single-acting cylinder extends due to the weight of the second tool bar and assumes the working position.

■ The return spring engages the pawl clutch and transmits the drive rotation to the work equipment.

As is clear from the above, according to the present invention, even if there is an erroneous operation of the hydraulic lever, the problem as pointed out at the beginning,
This is a useful tool that can definitely prevent accidents.

[Brief explanation of drawings]

Fig. 1 is a rear view of the whole, Fig. 2 is a right side view, Fig. 6 is an enlarged vertical sectional view of the main part of the first invention, Fig. 4 is an enlarged sectional view of the main part of the second invention, Fig. 5 The figure is an enlarged cross-sectional view of a main part of another embodiment, and FIG. 6 is a cross-sectional view taken along the line A--A with a part omitted. 1.1', , folding mechanism, 200. Main box, 69.6 First toolbar, 411. Support shaft, 500.
second toolbar, 600. Single acting cylinder, 700. Rotor drive shaft, 8.8', input shaft, 1000. Hydraulic cylinder, 11,...) Rakuta hydraulic pump. Patent applicant: Star Agricultural Machinery Co., Ltd. Figure 6

Claims (2)

[Claims] (1) In a pasture inverting machine having a folding tool bar, the first tool bar is connected to the left and right sides of the main box, and the second tool bar is connected to the outer end of the main box so that the second tool bar can be raised and lowered freely via a support shaft. A single acting cylinder is disposed between the and the second tool bar to raise and lower the second tool bar, and the input shaft connected to the rotor drive shaft via the main box is divided into an input side shaft and a bevel drive side shaft. In addition, an input side pawl clutch and a bevel drive side pawl clutch that are engaged and disengaged by the action of a hydraulic cylinder are provided on the corresponding surfaces of each of these axes, and the hydraulic cylinder and the above-mentioned single acting cylinder are connected to the tractor hydraulic pressure through the same conduit system. A folding mechanism for a grass turning machine characterized by communicating with a pump. (2) In a pasture inverting machine having a folding tool bar, the first tool bar is connected to the left and right sides of the main box, and the second tool bar is connected to the outer end of the main box so that the second tool bar can be raised and lowered freely via a support shaft, wherein the first tool bar is A single-acting cylinder is disposed between the second tool bar and the second tool bar to raise and lower the second tool bar, and the input shaft, which is connected to the rotor drive shaft through the main box and is sealed in the housing, is the input shaft. and a bevel drive side shaft, and an input side pawl clutch and a bevel drive side pawl clutch are provided on the corresponding surfaces of these shafts, which are engaged and disengaged by the action of a hydraulic cylinder, and the hydraulic cylinder and the single acting cylinder are connected to each other. A folding mechanism for a grass turning machine characterized by communicating with a tractor hydraulic pump through the same pipe system.