JPH0428596B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric management machine that uses the power of an electric motor to perform cultivation work, etc.

Conventionally, as shown in Japanese Utility Model Publication No. 46-34653, there has been a technique in which a transmission case is provided at the rear of the engine, an axle is attached to the lower part of the transmission case, and a steering handle is attached to the upper part of the transmission case.

However, in the conventional technology, the center of gravity is located at the front of the aircraft due to the weight of the engine, so it is necessary to maintain the front-to-back balance by pressing the handle downward, and it is also possible to relocate the engine to the handle. However, since the engine and handle intersect, there are handling problems such as the operator holding the handle having to work close to the engine.

However, in the present invention, the electric motor and the axle case are provided approximately on the center line in the longitudinal direction of the aircraft body, the deceleration case is provided offset to one side with respect to the approximate center line in the longitudinal direction of the aircraft body, and the reduction case is provided so as to be offset to one side with respect to the approximate center line in the longitudinal direction of the aircraft body. fixing the positioned electric motor to the rear part of the deceleration case;
The upper part of the axle case, which is tilted forward and has an axle at the lower part, and the front part of the deceleration case are connected and fixed.

Therefore, the electric motor and each case can be compactly housed in an inverted triangle in front of the handle, and the front-to-back and left-right balance of the machine can be improved, for example, by setting the center of gravity of the machine on the axle or slightly to the rear. It is easy to carry out, and even in tillage work where the tiller claws are placed on the axle, steering operations can be performed with a small handle load, and there is sufficient space under the handle for the worker to walk, ensuring safe handling. At the same time, the lower part of the axle case does not plunge into the soil even during tilling work where the tiller claws are attached to the lower part of the forward-inclined axle case through the axle, reducing forward movement resistance and easily improving work efficiency. It is possible to do so.

Hereinafter, one embodiment of the present invention will be described in detail based on the drawings.

FIG. 1 is an overall side view of the electric power management machine according to the present invention, and FIG. 2 is a plan view of the same, in which 1 is a commutator electric motor that rotates at high speed, and 2 is a transmission reduction case that fixedly supports the motor 1. , 3 is the reduction case 2
4 is a tilling rotary which is an attachment that is pivotally supported on the lower end of the axle case 3, and 5 is a chain case which is an axle case that fixes the upper end of the axle case in a forward-inclined manner; 5 is a rotary rotary 4 that is detachably fixed and supported on the axle case 3; A fender covering the upper area, 6 a handle holder fixed to the middle rear part of the axle case 3 via a fixed mounting plate 7, 8 a bolt 9 attached to the holder 6;
a steering handle that removably attaches the proximal end via;
Reference numeral 10 denotes a mounting plate 1 at the rear of the handle holder 6.
A resistance holder 12 is connected to the holder 10 through a bolt 13, and a resistance rod 12 is a resistance rod which is attached to the holder 10 in a height-adjustable manner. The aircraft is configured to run at the same time.

As shown in FIGS. 3 to 5, the motor 1 is horizontally attached to a reduction case 2, and the center of gravity G of the motor 1 is displaced by a dimension l to the right from the center line X of the axle case 3, which is the center of the machine. The motor 1 and the reduction case 2 are arranged on the left side of the center line X so that the motor 1 and the reduction case 2 are balanced.

The deceleration case 2 is formed by separately forming left and right case bodies 2a and 2b that are integrally fixed together via bolts 14, and the motor 1 is fixed to the rear end side of the right case body 2b via bolts 15. The upper end of the axle case 3 is connected to the front end side of the right case body 2b via a bolt 16 and a flange 17.

Furthermore, a bracket 1 is installed in the middle of the axle case 3.
8 and bolts 19, and the housing 20 is attached to the lower end of the case 3.
The tilling pawl 25 and guide ring 26 of the rotary 4 are mounted on the axle 21 via mounting pins 22, 23 and an auxiliary cylinder shaft 24.

As is clear from the above, the electric motor 1 and the axle case 3 are provided approximately on the center line in the longitudinal direction of the aircraft body, and the reduction case 2 is provided offset to one side with respect to the approximate center line in the longitudinal direction of the aircraft body. The electric motor 1 located immediately in front of the handle 8 is fixed to the rear part of the reduction case 2, and the upper part of the forward-slanted axle case 3 having the axle 21 at the lower part and the front part of the reduction case 2 are connected and fixed. .

In short, this management body uses the axle case 3 as the main component, and the fender 15 is attached to the middle left and right sides of the case 3 via brackets 18 and bolts 19, and the mounting plates 7, 11 and the like are attached to the rear of the case 3. The handle 8 and the resistance rod 12 are connected to the upper end of the case 3 through the bolts 16 and the flange 17 through the holders 6 and 10 to the right case body 2b.
In other words, the front ends of the reduction case 2 are each fixedly supported, and by fixedly supporting the electric motor 1 at the rear end of the right case body 2b via bolts 15, the motor 1, the reduction case 2, and the rotary 4, the fender 5, the handle 8, and the resistance rod 12 are all supported by the axle case 3.

And the tilling width W, which is the width of the left and right guide wheels 26
The width D of the upper body is made smaller (D<W) to improve the stability of the machine, and to make it easier to check the situation at the tilling side edge when working on the center line l of the machine. It is composed of

On the other hand, inside the deceleration case 2, the motor 1
A small-diameter timing pulley 28 attached to the output shaft 27 of , deceleration output shaft 3
5, and each of these pulleys 28, 30, 31, 33, 34,
Timing belt 37, 3 stretched between 36 and 36
8 and 39, and is configured to rotate the output shaft 35 at a reduced speed when the electric motor 1 is driven.

Further, the output shaft 35 is disposed inside the axle case 3.
The small diameter sprocket 40 and the axle 21 attached to the
A large diameter sprocket 41 attached to the sprocket 41 and a chain 42 that stretches between these sprockets 40 and 41.
The rotation of the output shaft 35 is controlled by the axle 21.
The structure is configured to transmit deceleration to.

By the way, as shown in FIG. 4, the axle case 3
is formed to be screwed into a bolt hole 43 opened in the right case body 2b of the deceleration case 2, and a boss portion 44 for opening the bolt hole 43 in the right case body 2b is made to protrude inward. The tip of the boss portion 44 is disposed so as to face inside the side wall 45 of the timing pulley 36, thereby reducing the width of the gap between the deceleration case 2 and the axle case 3.

The present embodiment is constructed as described above, and the center of gravity G of the electric motor 1 is located on the right side of the center line X of the aircraft body, and the deceleration case 2, which is a power transmission mechanism, is located on the left side. Since the motor 1 is installed horizontally, the overall height of the main body can be kept low and the overall center of gravity can be kept low, allowing the aircraft to run stably. The motor 1 and deceleration case 2 can be integrated on top to make the configuration more compact.

On the other hand, by locating the electric motor 1 in front of the handle 8 and the deceleration case 2 in front of the electric motor 1, and attaching the axle case 3 to the front of the case 2 by tilting it forward, the center of gravity of the machine can be adjusted. By setting the axle directly above the axle or slightly behind the axle, it is possible to obtain a machine with good front-rear balance, a sense of stability, and an extremely compact structure. Also,
By tilting the posture of case 2 forward,
This eliminates the inconvenience of the case 2 digging into the soil during plowing work when the posture of the case 2 is tilted backward, and it is possible to perform good work with less work resistance.

Further, the drive system from the output shaft 27 of the electric motor 1 to the output shaft 35 of the deceleration case 2 includes timing pulleys 28, 30, 31, 33, 3.
4, 36 and timing belt 37, 38, 39
Because it is constructed with Therefore, it is economical and suitable for practical use, and is particularly recommended for use in small-sized management machines.

As is clear from the above embodiments, in the present invention, the electric motor 1 and the axle case 3 are provided approximately on the center line in the longitudinal direction of the aircraft body, and the deceleration case 2 is provided offset to one side with respect to the approximate center line in the longitudinal direction of the aircraft body. At the same time, the electric motor 1 located immediately in front of the steering handle 8 is fixed to the rear part of the deceleration case 2, and the axle 2 is attached to the lower part.
1, the upper part of the axle case 3, which is tilted forward, and the front part of the reduction case 2 are connected and fixed, and the electric motor 1 and each of the cases 2 and 3 are compactly arranged in an inverted triangle in front of the handle 8. It can be stored and arranged, and it is possible to improve the longitudinal and lateral balance of the machine body, for example, to easily set the center of gravity of the machine on the axle 21 or slightly behind the axle 21, and even in plowing work where the tilling claws 25 are disposed on the axle 21. You can perform steering operations with a small handle with 8 loads,
In addition, sufficient space is secured under the handle 8 for the operator to walk, allowing safe handling, and the tilling work is carried out by attaching the tilling claws 25 to the lower part of the forward-inclined axle case 3 via the axle 21. However, the lower part of the axle case 3 does not plunge into the soil, and the forward movement resistance can be reduced to easily improve work efficiency.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a side view of the whole, FIG. 2 is a plan view of the same, FIG. 3 is a side view of the main part, and FIG. FIG. 5 is an explanatory diagram showing the driving structure of the main part. 1...Electric motor, 2...Power reduction case, 3
...Axle case, 8...Steering handle.

Claims (1)

[Claims] 1 The electric motor 1 and the axle case 3 are installed approximately on the center line in the longitudinal direction of the aircraft body, and the deceleration case 2 is provided offset to one side with respect to the approximate center line in the longitudinal direction of the aircraft body, and is located immediately before the steering handle 8. The electric motor 1 is fixed to the rear part of the deceleration case 2, and the upper part of the forward-inclined axle case 3 having an axle 21 at the lower part and the front part of the deceleration case 2 are connected and fixed.