JPS633701A - Rolling structure of earth working apparatus - 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] [Field of Industrial Application] The present invention provides a rolling method for a ground work device, which is connected to a walking type aircraft so as to be able to swing freely around an axis oriented approximately in the front-rear direction. Regarding structure.

[Conventional technology]

An example of a rolling structure of a ground work device configured like a snowflake is the structure shown in Japanese Utility Model Publication No. 31-15917.

[Problem that the invention seeks to solve]

Considering a rotary tillage device as an example of a ground work device, a rotary tillage device generally consists of a large number of plowing winds that are driven and rotated around a horizontal axis, and a cover that covers the top of these plowing winds. There is.

When replacing the tiller, removing grass wrapped around the tiller shaft, removing mud from the inside of the cover, washing with water after work, etc., lift the rear of the machine using the tail wheel or jack. , the rotary tiller is exposed at the rear.

However, if the rear part of the aircraft is lifted too much, the aircraft's puffiness will become unstable, so there is a limit to how far the rear part of the aircraft can be lifted.
The reality is that they are forced to work in a crouched position.

An object of the present invention is to make it possible to easily and safely perform adjustments and cleaning operations for ground-based work equipment by rationally modifying the rolling structure of the ground-based work equipment.

[Means for solving problems]

A feature of the present invention is that, in a rolling structure having a snow raising structure, the ground working device has a structure in which the posture can be changed from a substantially horizontal posture to an angle of 90 degrees or more in at least one direction on the circumference of the axis when viewed from the front and rear directions; The components that connect the walking-type aircraft and the ground work device are as follows: their functions and effects are as follows.

[For production]

If the above characteristics are configured as shown in FIG. 3, for example, by rotating the cylindrical member (7'b) 90 degrees from the horizontal position relative to the ground work device of member (A), the ground work device (A) is set in a horizontal position as shown in FIG. 1, and when the ground working device is a rotary tiller as shown in the same figure, the inside of the cover α frame is largely opened in any direction.

〔Effect of the invention〕

Therefore, by relatively simple modification of the conventional rolling structure by setting a larger rolling angle, even ground work equipment with a cover such as a rotary tiller can be easily operated from the wide space on the side of the machine. Now I can work. Additionally, since the worker does not have to take a position of crawling under the ground work equipment, the worker can now work safely from the side of the aircraft.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

As shown in Fig. 2, an engine (A) is mounted on a frame (3) extending forward from a transmission case (2) which is provided with a pair of left and right wheels (1) at the bottom of the transmission case (2). (
A belt transmission mechanism (6) is provided to transmit power from the transmission case (2) to the transmission case (2), and a pair of left and right handle rods (6) are provided extending rearward from the top of the transmission case (2). A tiller is constructed by forming a walking type machine body and connecting a rotary tiller 1 (A) as an example of a ground work device to the rear surface of a transmission case (2) via a connecting member (7). ing.

As shown in FIGS. 3 and 4, the member (7) includes a support member (7a) attached to the transmission case (2), and an axis aj) that is oriented forward and backward with respect to the support member (7a) K. A cylindrical member (7b) fitted around the circumference so as to be rotatable through 360 degrees
A worm wheel gear (8) having teeth formed over the entire circumference is attached to the outer surface of the cylindrical member (7b), and a worm wheel gear (8) is attached to the transmission case side.
The worm gear (9) that engages with 8) is the placket) (l
The electric motor αυ that drives the worm gear (9) is attached to the moving case (2 Noy law).

As shown in FIGS. 1 and 2, the rotary tillage device IA) includes a chain case (6) disposed in the center in the left-right direction, and a chain case (6) provided from the bottom of the chain case in both left and right directions. drive shafts (to), a large number of tillage wind α4 provided on these drive shafts (to), covers αQ1 that cover the upper parts of the tillage wind α, and idle wheels for setting the plowing depth. (to)
The rotary cultivating device (A) is constructed by transmitting power from the transmission case (2) through a transmission shaft αη coaxial with the shaft core (■) and installed in the support member (7a). Driven.

Incidentally, a bevel transmission mechanism is installed in the upper part of the chain rack cQ2, and the power from the transmission shaft α is transmitted to the bevel transmission mechanism.

In addition, a weight (not shown) is installed on the top surface of the chain case O-gon, and a sensor q9 is attached to detect the amount of deviation of the rotary tiller (A) from the horizontal position.
The electric motor (b) is actuated by a signal from the
The machine body is equipped with a control system (not shown) that performs rolling control that operates to always set the rotary tiller (A) in a horizontal position.

Further, the electric motor (B) can be operated arbitrarily, and by lifting the handle lever (6) so that the rotary tiller is slightly lifted off the ground and operating the electric motor (B), the electric motor (B) can be operated. As shown in Fig. 1, the rotary tillage device (A) is configured to change its angular posture by approximately 90 degrees so that inspection of the tillage type α shaft inside the cover 05, etc. can be easily carried out. There is.

[Other actual flow side]

In addition to the embodiments described above, the present invention does not require that the transmission shaft for driving the ground work device be provided on the rolling axis, and the rolling structure does not need to rotate through 360 degrees.

[Brief explanation of the drawing]

The drawings show an embodiment of the rolling structure of the ground working device according to the present invention, and FIG. 1 is a rear view of the tiller showing the state in which the rotary tiller is rolled 90 degrees, and FIG. 2 is an overall side view of the tiller. , FIG. 3 is a longitudinal sectional side view of the connecting portion of the rotary tilling device, and FIG. 4 is a plan view showing the rolling drive structure.

Claims (1)

[Claims] A rolling structure of a ground working device in which a ground working device (A) is connected to a walking type aircraft so as to be swingable around an axis (P) facing approximately in the front-back direction, and the ground working device is (A) is a member that connects the walking-type aircraft and the ground work device (A) to a structure that allows the attitude to be changed from a substantially horizontal attitude to an angle of 90 degrees or more in at least one direction around the axis (P); (7) A rolling structure of the ground work device comprising: