JPS6021923Y2 - Sliding type work machine for connecting to a tractor - Google Patents

Description

[Detailed Description of the Invention] The present invention is configured so that the working parts such as the rotary tilling section, which is attached to the tractor body via a three-point support mechanism so that it can be raised and lowered, can be changed in position relative to the tractor body in the width direction. Related to sliding type working machines.

When performing work along ridges or close to trees, etc. with a tractor equipped with a work equipment, the working part should protrude toward the ridge or tree, etc., and the distance between the machine and the tree should be increased. It is desirable to maintain sufficient maintenance to prevent contact accidents and to prevent untreated areas from occurring. For this purpose, the working part is divided into a base frame that is connected to the tractor and a movable frame that can be moved left and right relative to the base frame. A working mechanism section is provided on the movable frame, and a portion of the power that drives the working mechanism section is used to move the movable frame relative to the base frame side to change and adjust the position of the working mechanism section. This has been practiced for a long time.

By the way, the relative movement of the movable frame to the base frame side is activated and stopped by forwarding, reversing, and stopping the operating mechanism, which is built in the transmission mechanism to the working mechanism, by operating the operating lever. In this case, the operating mechanism installed on the movable frame is configured to operate the operating lever even when it is in a working position, for example, when it is engaged in the soil, so there is no need to inadvertently operate the operating mechanism when the working part is in the soil. Accidents have occurred in which the control lever is actuated and the device is moved from side to side under heavy load, causing damage to the device.

Therefore, the present invention was carried out with the purpose of providing a sliding type working machine which has an extremely simple structure and can reliably prevent the working mechanism from moving from side to side when it is in a working position. .

The present invention solves this problem by retracting the operating lever to a position where it can be reached by a seated worker when the working part is in the non-working position, and out of reach when the working part is in the working position. The feature is that the length and direction are set.

Next, one embodiment will be explained with reference to the drawings.

In this embodiment, as shown in FIGS. 1 and 2, a tilling section 4 is placed at the rear of a tractor 2 via a conventional three-point support mechanism 3 at a working position (a tilling position) where a tilling operation can be performed. 1
The present invention is applied to a slide type working machine, that is, a slide rotary 1, which is connected so as to be able to be raised and lowered between a non-working position (position A in the figure) and a non-tillage position (position B in the figure), which is raised by a predetermined amount from the ground surface. The structure of this slide rotary 1 will be described below, relating to an example implemented.

That is, the tilling section 4 slides the transmission case 7 and the support body 8, which are integrally connected to the gear case 5 connected to the tractor 2 by the connecting rod 6, in the width direction of the machine via the slide tubes 9 and 10. A tilling shaft 12 is freely supported and has a large number of tilling claws 11, 11 planted between the transmission case 7 and the support body 8, and the tilling shaft 12 is connected to the output shaft 13 of the tractor 2. A gear case 5, a slide cylinder 9, and a transmission case 7 are connected in an interlocking manner via a conventional power transmission mechanism 14 (only a portion is shown), and can be slid freely in the width direction of the fuselage using a slide operation mechanism 15. being done.

The slide operation mechanism 15 is housed in a slide tube 10 fixed to the gear case 5 and the support 8, and one end thereof is connected to a transmission shaft 14a that is a part of the power transmission mechanism 14.
The other end portion of the threaded shaft 16 supported relatively rotatably is screwed into and supported by the female threaded body 17 fixed to the support body 8 and inserted into the slide cylinder 10, and is attached to the transmission shaft 14a. An intermediate bevel gear 19 rotatably supported by the gear case 5 is engaged with the fixed normal bevel gear 18, and a reverse bevel gear 20 loosely fitted on the threaded shaft 16 is engaged with the intermediate bevel gear 19, so that a A clutch body 21 is attached to the threaded shaft 16 in a forward clutch engagement position where it engages with the clutch teeth 18a of the forward rotation bevel gear 18, a reverse clutch engagement position where it engages with the clutch teeth 20a of the reverse rotation bevel gear 20, and both clutches. Teeth 18a, 2
The clutch is supported so as to be movable in the axial direction and non-rotatable relative to each other so as to be selectively operated to a clutch disengaged position (FIG. 3 position) in which the clutch is not engaged with any of the clutches 0a.

Therefore, according to this slide operation mechanism 15, when the clutch body 21 is operated to the normal rotation clutch engagement position, the screw shaft 16 is directly connected to the transmission shaft 14a and rotates in the same direction as this, and the female screw body 17 is rotated. When the support body 8 and therefore the cultivating part 4 are slid in the A direction, and the clutch body 21 is operated to the reverse clutch engaged position, the screw shaft 16 is moved by the transmission shaft 14a. Forward rotation bevel gear 18 intermediate gear 19 and further reverse rotation bevel gear 20
The tiller 4 is rotated in the opposite direction to the transmission shaft 14a via the transmission shaft 14a, and the tiller 4 is slid in the direction A'. The connection with 16 was severed,
The sliding of the tilling section 4 is stopped.

Then, a grip part 22a having an operating lever 22 formed at one end thereof is attached to the driver's seat 22 of the tractor 2 at a suitable position on the upper surface of the gear case 5 and in a part facing the clutch body 21.
When the control lever 22 is supported so as to be rotatable in the mouth direction or the mouth direction, and the operating lever 22 is brought to a neutral position perpendicular to the screw shaft 16 (solid line position in FIGS. 3 and 4),
The clutch body 21 is brought to the clutch disengaged position, and when the clutch body 21 is rotated from the neutral position toward the opening or opening, a pair of springs 24 and 24 are applied to the operating lever 22.
A shifter 27 is interlocked with the lock body 25 and an operating shaft 26, and the clutch body 21 is operated to the normal rotation clutch engagement position or the reverse rotation clutch engagement position.

The length of this operating lever 22, that is, the relative position of the grip portion 22a with respect to the driver's seat 23, is such that when the slide rotary 1 is brought to the tilling position, the operator's hand in the driver's seat 23 cannot reach the grip portion 22a. The setting is such that the operator can grip the grip portion 22a from the driver's seat 23 and operate the operating lever 22 only when the slide rotary 1 is raised to the tilling position.

That is, the three-point support mechanism 3 has its top link connected to the tilling section 4.
When the tiller is lowered (ground contact work position), it becomes straight as shown in Fig. 1A, and when the tiller is raised, it is bent as shown in Fig. 2B. The setting is such that the operator can grip the grip portion 22a with the top link in FIG. B bent (non-till position).

The operating lever 22 moves the clutch body 21 to each of the above positions by engaging the engagement holes 28, 29, 30 formed in the gear case 5 with a locking body 31 which is energized so as to be freely engaged with the engagement holes 28, 29, 30. It is removably locked at each predetermined operating position, and as a safety measure in case you forget to operate it to the neutral position, when the tilling part 4 slides the full stroke in the A direction or the A direction, A stopper 32 or 33 fixed to the connecting rod 6 forcibly brings it to the neutral position.

Therefore, in the slide rotary 1 configured as described above according to the present invention, the manual operation part of the slide operation mechanism 15, that is, the operation lever 22 (grip part 22a) for operating the clutch body 21 is attached to the slide rotary. 1
The operator in the driver's seat 23 cannot operate the slide operation of the tiller 4 unless it is in the non-till position (position B in Figure 1), which is raised from the ground surface. Regardless of the operator's will, this is always carried out in a state where the tilling section 4 is not in contact with the ground.

By the way, if the sliding operation of the tilling section 4 is performed while the tilling section 4 is in contact with the ground, the tilling claws 11 (and the tail wheel 34) will be moved while scraping the ground. Various troubles may occur, such as unexpected wear of the tail wheel 34), increased slide resistance, and excessive overload on the slide operating mechanism 15, etc., and especially operator carelessness. If the slide operation is performed during tilling work due to etc., the tiller claw 1
1 (and the tailwheel 34) are buried in the ground, the occurrence of the above-mentioned problems becomes noticeable, and in extreme cases, there is a risk that the slide mechanism 15 etc. in the plowing section 4 area may be damaged. .

However, as described above, depending on the operator sitting in the driver's seat 23, the sliding operation of the tilling section 4 may be performed without ensuring that the tilling section 4 is in contact with the ground, which may cause the above-mentioned problems. This can be prevented,
It is always well done.

Note that the present invention is applicable to the slide rotary 1 as in the above embodiment.
It goes without saying that the present invention is not limited to, but can be applied to various slide-type working machines in which the working part can be slid freely with an appropriate slide operation mechanism, and the same effects as those of the above embodiments can be obtained. .

Further, the slide operation mechanism is not limited to the above embodiment, and may be configured to include, for example, a link mechanism to swing and displace a working part such as a tilling part to perform a sliding operation. In addition to the mechanical type, it is also possible to use a hydraulic type or an electric type.

As is clear from the above explanation, the present invention has three parts at the rear of the tractor 2, including a working position where the working part 4 can perform a predetermined work and a non-working position where it can be raised from the ground surface. It is connected via a point support mechanism 3 so that it can be raised and lowered,
In a slide-type working machine in which the working part 4 is slidable in the width direction by an appropriate slide operating mechanism 15, the operating lever 22 of the slide operating mechanism 15 is arranged to face the back of the driver's seat 23 of the tractor 2, and The operating lever 22 can be operated by the operator seated in the driver's seat when the working part 4 is brought to the non-working position by operating the three-point support mechanism 3, and when the working part 4 is brought to the working position. is a slide-type work machine for connecting to a tractor, which is set to a length that allows it to be retracted to a position out of the reach of a seated worker. If you want to slide the
Since the operating lever 22 cannot be reached unless it is raised to the non-working position using the pressure point support mechanism 3, the working part is always raised when operating the slide, and no load is applied to the slide operation, resulting in damage to the equipment, deformation, etc. A smooth adjustment is always carried out.

In addition, even if you try to slide the work part while in the working position, you will not be able to reach the control lever in the same position, so incorrect operation will be avoided and it will be safe. This can be done by simply setting the direction and length, which has the advantage of simplifying the structure.

[Brief explanation of the drawing]

1A and 1B are side views showing an example of a slide rotary, which is a slide type work machine according to the present invention, where A shows the slide rotary in the tilling position, and B shows the slide rotary in the non-tilling position. Fig. 2 is a plan view of the same, Fig. 3 is a sectional view taken along the line ■-■ in Fig. 2, Fig. 4 is an enlarged view showing the main parts of Fig. 2, and Fig. 4 is an enlarged view showing the main parts of Fig. FIG. 5 is a sectional view taken along the line ■-V in FIG. 4. 1...Slide rotary (slide type work machine)
, 2...Tractor, 4...Plowing section (working section), 15...Slide operation mechanism, 22...Operation lever (human operation section) .

Claims (1)

[Scope of utility model registration request] A working part 4 is connected to the rear of the tractor 2 via a three-point support mechanism 3 so that it can be raised and lowered between a working position where a predetermined work can be performed and a non-working position where it can be raised from the ground surface. , in a slide-type working machine in which the working part 4 is slidable in the width direction by an appropriate slide operating mechanism 15, the operating lever 22 of the slide operating mechanism 15
is opposed to the back of the driver's seat 23 of the tractor 2, and its operating lever 22 is operated by the three-point support mechanism 3 to move the working section 4.
When it is brought to the non-working position, the operator in the driver's seat can operate it while remaining seated, and when the working part 4 is brought to the working position, it has a length that is retracted out of the reach of the seated worker. A slide-type work machine for connecting to a tractor, which is characterized by the following settings: