JPH0135603Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a device for leveling the surface of cultivated soil in a tiller.

(Prior Art) In the conventionally known one shown in FIG. 3, a screw rod B is projected from an end of a rear cover A, and after the screw rod B is inserted into a vertical hole C, it is fixed with a screw D.

Furthermore, in the conventionally known one shown in FIG. 4, a vertical hole C is formed at the end of the rear cover A, a screw rod B is made to protrude from the main body side from the vertical hole C, and the screw rod B is inserted into the vertical hole C before being screwed. It was fixed at D.

(Problems to be Solved by the Invention) However, the known example has a defect in that the adjustment range cannot be adjusted.

(Means for Solving the Problems) Therefore, the present invention provides a transmission case 3 at the upper central position of a horizontally long earth crusher main body 1, and attaches horizontal transmission cases 2 to both sides of the transmission case 3. A vertical power transmission case 4 for rotating the rotor of the earth crusher body 1 is attached to one end of the horizontal transmission case 2, and a rear cover 5 is provided at the rear of the earth crusher body 1. The rear cover 5 is mounted at a vertically symmetrical position by a shaft 23 in the front-rear direction, and shaft cylinders 19 are provided at both left and right ends of the rear cover 5, and vertical rods 20 are fixed to both left and right ends of the earth crusher main body 1, and the vertical rods 20 A tiller in which a shaft cylinder 19 is loosely fitted into the vertical rod 20, adjustment holes 21 are provided at regular intervals in the height direction, and pins 22 are selectively engaged with the adjustment holes 21. This device is used as a leveling device for the surface of cultivated soil.

(Example) To explain with the drawings, 1 is a horizontally long earth crusher main body, 3 is a transmission case provided in the center, 2 is a horizontal transmission case 2 extending left and right from the transmission case 3. A vertical power transmission case 4 is provided on one side, and a transmission device leading to the vertical power transmission case 4 is housed inside the horizontal transmission case 2 .

As is well known, a rotor having a large number of radially protruding soil crushing blades is attached to the earth crusher main body 1.

A rear cover 5 is attached to the rear part of the earth crusher main body 1, and the right and left center of the rear cover 5 is pivotally attached to the earth crusher main body 1 side by a longitudinal shaft 23. rear cover 5
The lower end of the vertical rod 6 is pivoted to the left and right sides of the frame 7, and the upper part of the vertical rod 6 has a mounting bracket 8 that protrudes from the horizontal transmission case 2.
The spring 9 is wound below the mounting bracket 8, and the spring 10 is wound above the mounting bracket 8.

A horizontal rod 11 is provided at the upper part of the center of the rear cover 5, and vertical rods 12 are installed at both left and right ends of the horizontal rod 11.
The lower end of the vertical rod 12 is pivoted 13 to the rear cover 5.

The lower end of the swinging rod 14 is fixed to the left and right intermediate parts of the horizontal rod 11, the pin 15 is attached to the upper end of the swinging rod 14, and the pin 15 is engaged with the long hole 16 in the left and right direction on the side of the earth crusher main body 1. let Rear cover 5 through long hole 16
Limit swing.

Swing plates 17 projecting upward are provided on both left and right sides of the rear cover 5, a shaft plate 18 is fixed to the upper end of the swing plate 17, and a shaft cylinder 19 is fixed to the shaft plate 18. The shaft cylinder 19 is loosely fitted into a vertical rod 20 fixedly provided on the side of the earth crusher main body 1 so that it can be moved up and down.
A plurality of upper and lower adjustment holes 21 are formed at regular intervals, and pins 22 are selectively inserted into the adjustment holes 21.

(effect) Next, we will discuss the effect.

When the tractor is driven to pull the crusher body 1, the rotation of the output shaft enters the transmission case 3,
The soil crushing blade is rotated through the horizontal power transmission case 2 and the vertical power transmission case 4 to crush the soil in the field.

The rear cover 5 has its left and right centers pivoted to the earth crusher main body 1 side by a longitudinal shaft 23, and swing plates 17 projecting upward are provided on both left and right sides of the rear cover 5. fixes the shaft plate 18, fixes the shaft cylinder 19 to the shaft plate 18,
The shaft cylinder 19 is loosely fitted into a vertical rod 20 fixedly provided on the side of the earth crusher main body 1 so that it can be freely moved up and down. Since the pin 22 is selectively inserted, the pin 22 can be inserted into the adjustment hole 2 provided in the vertical rod 20.
When the rear cover 5 is inserted into the top of the slot 1 and worked, the rear cover 5 swings left and right around the shaft 23 when there are heights on the left and right sides of the field.
This is done until the pin 15 sliding inside 6 abuts against it.

However, if the pin 22 is replaced with another adjustment hole 21 provided in the vertical rod 20, the swing will continue until the shaft tube 19 abuts against the pin 22, so that the swing can be restricted to a small size.

(Effects) The known one had the defect that the swing range could not be adjusted.

However, in the present invention, a transmission case 3 is provided at the upper center of a horizontally long earth crusher body 1, horizontal transmission cases 2 are attached to both sides of the transmission case 3, and the crushed soil is attached to one end of the horizontal transmission case 2. A vertical power transmission case 4 for rotating the rotor of the machine body 1 is attached, and a rear cover 5 is provided at the rear of the earth crusher body 1, and the rear cover 5 is rotated by a longitudinal axis 23 at the left-right center position with respect to the earth crusher body 1. A shaft cylinder 19 is provided at both left and right ends of the rear cover 5, a vertical rod 20 is fixed to both left and right ends of the earth crusher main body 1, and the shaft cylinder 19 is loosely fitted to the vertical rod 20, Adjustment holes 21 are provided in the vertical rod 20 at regular intervals in the height direction, and pins 22 are selectively engaged with the adjustment holes 21. Therefore, the swing range can be adjusted simply by selectively engaging the pin 22 with the adjustment hole 21 of the vertical rod 20.

[Brief explanation of the drawing]

1 is a rear view, FIG. 2 is a side view of essential parts, FIG. 3 is a diagram of a first known example, FIG. 4 is a diagram of a second known example, and FIG. 5 is a schematic diagram of the present invention. Explanation of symbols, 1... Earth crusher body, 2... Horizontal transmission case, 3... Mission case, 4... Vertical power transmission case, 5... Rear cover, 6... Vertical rod, 7... Shaft attachment, 8...Mounting bracket, 9...Spring,
10...Spring, 11...Horizontal rod, 12...Vertical rod, 1
3... shaft mounting, 14... rocking rod, 15... pin, 1
6...Long hole, 17...Swing plate, 18...Mounting plate, 19...Vertical tube, 20...Vertical rod, 21...Adjustment hole, 22...Pin, 23...Shaft.

Claims (1)

[Scope of utility model registration request] A transmission case 3 is provided at the upper center of the horizontally long earth crusher main body 1, horizontal transmission cases 2 are attached to both sides of the transmission case 3, and the rotor of the earth crusher main body 1 is attached to one end of the horizontal transmission case 2. A vertical power transmission case 4 for rotating the earth crusher body 1 is attached, and a rear cover 5 is provided at the rear of the earth crusher body 1, and the rear cover 5 is pivotally attached to the earth crusher body 1 at the left-right center position by a longitudinal axis 23. rear cover 5
A shaft tube 19 is provided at both left and right ends of the earth crusher body 1, and a vertical rod 20 is fixed to both left and right ends of the earth crusher body 1, and the shaft tube 19 is loosely fitted into the vertical rod 20. A leveling device for leveling the surface of cultivated soil in a tiller, in which adjustment holes 21 are provided at regular intervals in the direction of height, and pins 22 are selectively engaged with the adjustment holes 21.