JPH02171101A - Resistance unit for power agricultural machine - Google Patents

Abstract

PURPOSE:To enable stabilized plowing by providing the plowing machine with a couple of arm levers supporting the shaft bearing the resistance wheel in the front or rear of the plowing blades and setting a resistance controlling mechanism between the supporting arm and the resistance wheel. CONSTITUTION:The plowing blades 2, 2,... are set to the wheel shaft 1, and a couple of arm levers 4 supporting the shaft bearing the resistance wheel 3 is provided in front or rear of the blades 2, 2,.... A resistance-controlling mechanism 5 is set near the outer periphery of 3 on one arm lever and the pressure of the friction plate on the wheel 3 is controlled by the operating lever 17.

Description

[Detailed description of the invention] Industrial applications This invention relates to a resistance device for power agricultural machinery.

PRIOR ART AND PRIOR ART PROBLEMS TO BE SOLVED BY THE INVENTION In a power agricultural machine, an appropriate number of tilling blades for tilling while rotating are attached to left and right wheel axles.

This tilling work is done by applying appropriate resistance to the traction force generated by the tilling action of the tilling blade to maintain the tillage state and tillage depth. A resistance rod that can plunge into the soil from above is installed, and the resistance is adjusted by adjusting the amount that this resistance rod plunges into the soil by operating the control handle up and down, but the resistance is difficult to stabilize, so this plowing work is not easy. do not have.

Means for Solving the Problems The present invention provides a tilling blade (21) which is attached to a left and right axle shaft (1) and which tilles while rotating. A shaft support arm (4) is provided which pivotally supports a resistance wheel (3) that provides resistance to the traction force generated with the tilling action of 21..., and these shaft support arms (4) and resistance wheel (3) A resistance adjustment device for a power agricultural machine is provided with a resistance adjustment mechanism (5) that can adjust the amount of resistance of the resistance wheel (3) between the two.

Effect of the invention Rotating axle shaft (cultivating blade on 11 +21 +21...
is a resistance wheel (3) whose resistance is adjusted by a resistance adjustment mechanism (5).
) is used to till the land while providing traction resistance.

When the resistance of the resistance wheel (3) is increased by the resistance adjustment mechanism (5), a large traction resistance is given to the tilling blade f21 +2), which slows down the advancing speed, so the size of the tilled soil becomes smaller. As time goes on, the depth of cultivation becomes deeper. Conversely, if the resistance of the resistance wheel (3) is decreased, the tilling blade will be +21 +21.
... is given a small traction resistance and the advancing speed becomes faster, so the size of the tilled soil becomes larger and the plowing depth becomes shallower.

Effects of the Invention With such an action, the resistance of the resistance wheel (3) is adjusted by the resistance adjuster M (6) instead of adjusting the resistance of the resistance rod by operating the control handle up and down as in the above title. Since only adjustment is required, it is easy to maneuver and stable plowing work can be maintained.

In the embodiment, when rotating, the lower end portion has a left and right pair of axle shafts fil fil in the left and right direction, and these axle shafts (11 (11
A transmission case (6) containing a transmission mechanism for transmitting power to the wheel shaft (11) is provided, and the wheel shaft (1) (
1), an appropriate number of tilling blades (21F2) are provided that rotate counterclockwise in the drawing.

A frame (8) with a prime mover (7) mounted on the front part is supported in the vertically intermediate part of the transmission case (6), and a vertical bottle hole is provided in the rear end of this frame (8). A handle frame (1ω) is connected to the upper end of the transmission case (6), and a handle frame (1ω) protrudes rearward. A pair of control handles flll Cl11 are provided to protrude rearward.

In the bottle hole of the pitch (9), a support pin (121) having two pivot arm rods (4) in a rear view is rotatably supported at the lower end, and the pivot arm rods (4) A resistance ring (3) having an appropriate number of radial protrusions f+3031 on the outer peripheral surface is provided at the lower end of the
is rotatably supported.

At a position near the outer periphery of the resistance ring (3) of the left shaft support arm (4), there is a female threaded portion (14) in the left and right direction of the resistance adjustment mechanism (5).
1, and this female threaded portion Q41 is provided with a male threaded rod (I) having a friction plate (19) that can press the left side surface of the resistance ring (3).
Q is screwed into the left end of this male threaded rod flE9, and an operating lever (■) for rotating the male threaded rod is provided.

Note that (+8) is a transmission case that houses a transmission mechanism that transmits power from the prime mover (7) to the transmission mechanism in the transmission case (6).

Next, the effect will be explained. The transmission mechanism in the transmission case tIll that transmits power from the prime mover (7) is connected to the transmission case (6).
), the power is transmitted to the tilling blades (2) +21... through the wheel shafts tl), fl).

When the degree of suppression of the friction plate (1!9) to the resistance wheel (3) is increased by rotating the operation lever [ω, the tilling blade (21 (21) The traction resistance against ... also increases.On the other hand, the resistance wheel (3) of the friction plate 09
When the degree of suppression is reduced, the braking force of the resistance wheel (3) is reduced, and the traction resistance against the tilling blade (21 (21...) is also reduced.

The resistance wheel (3) is pulled while pushing the protrusion (13 (1"Il...) into the soil, and the tilling blade rotates +21 +2
1... advances and plows while receiving traction resistance from the resistance wheels (3).

[Brief explanation of the drawing]

The figures show one embodiment of the invention, with FIG. 1 being a side view and FIG. 2 being a partial rear view. In the figure, (1) is a wheel shaft, (2) is a tilling blade, F3) is a resistance wheel, (4) is a shaft support arm, and (5) is a resistance adjustment mechanism.

Claims (1)

[Claims] In front or behind the tilling blades (2) (2)... which are attached to the left and right wheel shafts (1) and tillage while rotating, there is a tilling blade (2) (2)... which is used for the tilling action of these tilling blades (2) (2)... A pivot arm rod (4) is provided which pivotally supports a resistance wheel (3) that provides resistance to the resulting traction force. A resistance adjustment device for a power agricultural machine, comprising a resistance adjustment mechanism (5) capable of adjusting the amount of resistance (3).