JPH0823A - Power-transmitting apparatus for agricultural working machine - Google Patents

Abstract

PURPOSE:To enable the easy adjustment of the amount of fertilizer applied through a fertilizing nozzle by a vari-speed mechanism of a power transmission to a fertilizing pump and to enable the use of the same power transmission even in another mobile vehicle in an agricultural working machine which is designed to perform an agricultural work and applying fertilizer into the soil at the same time by placing a fertilizing nozzle connected to the fertilizing pump on a mobile vehicle having front wheels. CONSTITUTION:An agricultural working machine is provided with a power transmission 13 for transmitting power from a mobile vehicle to a fertilizing pump 12. A vari-speed mechanisms 33, 34 of the power transmission 13 is constructed in such a manner as to be variable in multiple stages by changing the combination of power transmitting wheels 35 and further, the power transmission 13 is attached through a connecting member 46 on the mobile vehicle in a freely detachable manner.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power transmission device for an agricultural working machine which can be applied to soil at the same time as agricultural work such as seedling transplantation.

[0002]

2. Description of the Related Art Generally, agricultural working machines for transplanting seedlings have
It is known that a fertilizer application nozzle is provided on a traveling machine body having front and rear wheels, and the fertilizer application nozzle is connected to a fertilizer pump driven by power from the traveling machine body so that fertilizer can be applied to soil at the same time as seedling transplantation. ing.

[0003]

This type of agricultural working machine is provided with a dedicated power transmission device for changing the power from the traveling machine body and transmitting it to the fertilizer pump for each machine body. However, when the type of crop changes and it is desired to change the amount of fertilizer applied accordingly, there is a problem that another power transmission device for changing the rotation speed of the fertilizer pump is required each time. The present invention was created in order to solve the above-mentioned problems, and it is possible to easily switch the power from the traveling machine body to a plurality of gear ratios, and further, this power transmission unit is used for another traveling machine body. It is an object of the present invention to provide a power transmission device for an agricultural work machine that can be easily detached and used.

[0004]

In order to solve the above-mentioned problems, the technical means taken by the present invention is to provide a traveling machine body having front and rear wheels with a fertilizer application nozzle connected to a fertilizer pump so as to simultaneously perform agricultural work. In an agricultural work machine adapted to fertilize soil, a power transmission unit for transmitting power from a traveling machine body is provided to the fertilizer pump, and a speed change mechanism of the power transmission unit is changed to a plurality of stages by changing power transmission wheels. Possible configuration,
The power transmission section is detachably attached to the traveling machine body through a connecting tool.

[0005]

Therefore, according to the present invention, the power transmission unit transmits the power from the traveling machine body to the fertilizer pump, and the fertilizer application nozzle connected to the fertilizer pump performs soil fertilization. Then, only by recombining the power transmission wheels, the speed change mechanism of the power transmission unit is shifted in a plurality of stages, so that the fertilizer application amount can be adjusted in a wide range according to the type of crop and the like. And the power transmission part that is detachably connected to the traveling machine body via the connecting tool can be easily attached to another traveling machine body, so use the same power transmission part to perform soil fertilization efficiently. You can

[0006]

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings. First, in FIG. 1, reference numeral 1 denotes a machine body frame of a traveling machine body 4 having front wheels 2 and rear wheels 3, and a seedling transplanting device 6 including a seedling supply disc 5 and the like is provided at a substantially central portion of the machine body frame 1. The driver's seat 7 is disposed behind the vehicle. Further, in the front part of the traveling machine body 4, a fertilizer application nozzle 8 extending rearward and downward, a switching lever 9 for moving the fertilizer application nozzle 8 up and down between a working position and a non-working position, and an indicator for intermittently flowing the fertilizer to the fertilizer application nozzle 8. An engine 11, a fertilizer pump 12, and a power transmission unit 13 for transmitting the power from the engine 11 to the fertilizer pump 12 at a variable speed are arranged at the rear of the traveling machine body.
Reference numeral 14 is a fertilizer tank communicating with the fertilizer pump 12, and 15 is a seedling stand.

The fertilizer application nozzle 8 is an upper stage nozzle 8 on the left and right.
a, a middle stage nozzle 8b and a single lower stage nozzle 8c, the entire fertilizer application nozzle 8 rolls left and right, and is moved up and down by the switching lever 9. That is, as shown in FIGS. 5 and 6, the mounting boss 16 is attached to the body frame 1
A bracket 17 fixed to the above is supported by a support shaft 18 so as to be swingable back and forth, and a mounting plate 19 projecting forward is fitted to the mounting boss 16 so as to be rotatable left and right. The left and right support bars 20 are fixed to the rear surface of the fitting portion of the mounting plate 19, and both end sides of the support bar 20 are
The support plates 21 of the upper nozzle 8a and the middle nozzle 8b are fixed. Further, the support plate 22 of the lower stage nozzle 8c is supported by the mounting plate 19 via a connecting plate 23 so as to be freely swingable back and forth, and the entire fertilizer application nozzle 8 is capable of rolling left and right around the mounting boss 16 as an axis. Reference numeral 24 denotes a spring for urging the connecting plate 23 rearward. The spring 24 biases and holds the lower nozzle 8c at a lower working position, and when the lower nozzle 8c abuts on the cultivator or the like. Move up against the force.

Further, the switching lever 9 is fixed to a rearwardly facing bracket 25 provided on the upper end side of the mounting boss 16,
A locking pin 26 is provided at the lower end thereof. Then, the upper and lower two-stage grooves 27a, 27 with which the locking pin 26 is locked.
If the locking bracket 27 having the b formed therein is fixed to the machine body frame 1 and the locking pin 26 is locked in the lower groove 27a by operating the switching lever 9 up and down, the fertilizer application nozzle 8 supports the spindle of the mounting boss 16. The fertilizer application nozzle 8 rises to the upper non-working position by descending to the lower working position around the axis 18 and switching and locking the locking pin 26 to the upper groove 27b.

The indicator 10 has its upstream side connected to the fertilizer pump 12 via a connecting pipe 28, and its downstream side via a connecting pipe 29 to an upper stage nozzle 8a and a middle stage nozzle 8 respectively.
It is connected to b. The fertilizer pumped from the fertilizer pump 12 flows to the fertilizer application nozzle 8 at the working position where the lever 30 is pivoted forward, and the pumped fertilizer flows back to the sub-tank at the stop position where the lever 30 is pivoted upward. At the cleaning position where the lever 30 is operated downward, the connection hose 29 to the fertilizer application nozzle 8 can be cleaned by connecting a water hose or the like to the path to the sub tank. Reference numeral 31 is a connector for changing the connecting pipe 29 from the upper stage nozzle 8a or the middle stage nozzle 8b to the lower stage nozzle 8c.

As shown in FIGS. 2 to 4, the power transmission unit 13 has a frame 32 provided with a gear speed change mechanism 33 and a sprocket speed change mechanism 34 for changing the power from the engine 11 to the fertilizer pump 12. The fertilizer transmitted and stored in the fertilizer tank 14 is pressure-fed to the indicator 10 side. Then, the power transmission wheels 35 such as gears and sprockets are recombined so that the gears can be shifted in multiple stages. That is, in this embodiment,
The gear transmission mechanism 33 has a gear 36, 2 of 40T (T is the number of teeth).
It is composed of a 6T gear 37, a 40T gear 38, and a 26T gear 39.
Are concentric 12T and 18T sprockets 40, 4 that transmit the power from the gear transmission 33 to the fertilizer pump 12.
1. 12T sprocket 4 attached to fertilizer pump 12
2. Concentric 12T and 24T sprockets 43 and 44
And 12T sprocket 45 etc.,
By changing these gears and sprockets, it is possible to change gears in six stages. And, a detachable connecting tool 46 for connecting the power transmission section 13 to the traveling machine body 4,
It is formed by a hitch 47 provided on the machine body side, a hitch 48 provided on the power transmission section 13 side, and one connecting pin 49 inserted through these.

In the above-mentioned construction, when the machine is running and the seedling transplanting work is performed, if the fertilizer application nozzle 8 is set as the working position, the soil is formed from the upper stage nozzle 8a and the middle stage nozzle 8b to the upper and lower two stage fertilizer application. Fertilized in the middle, and the connecting pipe 2
By replacing 9 with the lower nozzle 8c, the fertilization arrangement can be changed to the upper and lower stages or the middle and lower stages. Even when the traveling machine body 4 bends and meanders during traveling, the fertilizer application nozzle 8 extending rearward and downward is provided with the mounting boss 16 on the front end side.
Since it rolls to the left and right with the rotation axis as the rotation support shaft, it is possible to apply the fertilizer at a predetermined fertilization position by going straight without bending with the machine body.

When it is desired to change the amount of fertilizer applied according to the type of crops to be transplanted, the rotation speed of the fertilizer pump 12 can be changed over a wide range by simply changing the gear of the power transmission unit 13, the sprocket and the like. Therefore, the amount of fertilizer to be pumped can be adjusted to an appropriate amount according to the working conditions. The detachable power transmission unit 13 connected to the traveling machine body 4 by one connecting pin 49 can be easily attached to other working machines, so that the same power transmission unit 13 can be used efficiently. You can do the work.

[0013]

In summary, the present invention provides an agricultural working machine in which a fertilizing nozzle connected to a fertilizer pump is provided on a traveling machine body having front and rear wheels so as to fertilize the soil simultaneously with the agricultural work. The pump is provided with a power transmission unit for transmitting power from the traveling machine body, and the speed change mechanism of the power transmission unit is
The power transmission wheels are reconfigured so that the gears can be shifted in multiple stages, and the power transmission section can be attached to and detached from the traveling machine body through a connecting tool. Therefore, the power transmission section transmits the power from the machine body to the fertilizer pump. Therefore, it is possible to surely apply fertilizer in the soil from the fertilizer application nozzle connected to the fertilizer pump. And when it is necessary to change the fertilizer application rate depending on the type of crop, the rotation of the fertilizer pump can be changed in multiple stages simply by recombining the power transmission wheels of the speed change mechanism. Can be adjusted in a wide range, and proper soil fertilization can always be performed according to working conditions. Since the power transmission section that is detachable via the connecting tool can be easily attached to other traveling aircraft, it is possible to efficiently perform fertilization in the soil by using the same power transmission section. is there.

[Brief description of drawings]

FIG. 1 is an overall side view of an agricultural work machine.

FIG. 2 is a plan view of a power transmission unit.

FIG. 3 is a rear view of the same.

FIG. 4 is a perspective view of the same.

FIG. 5 is an enlarged side view of a fertilizer application nozzle portion.

FIG. 6 is a perspective view of the same.

[Explanation of symbols]

 1 Front Wheel 2 Rear Wheel 4 Traveling Machine 8 Fertilizer Nozzle 12 Fertilizer Pump 13 Power Transmission Part 33 Gear Transmission Mechanism 34 Sprocket Transmission Mechanism 35 Power Transmission Wheel 46 Coupling

Claims (1)

[Claims] 1. In an agricultural work machine in which a fertilizer application nozzle connected to a fertilizer pump is provided on a traveling machine body having front and rear wheels to fertilize soil in the soil at the same time as agricultural work, the fertilizer pump supplies power from the traveling machine body. Is provided with a power transmission section for transmitting
Agricultural work characterized in that the speed change mechanism of the power transmission unit is configured to be capable of shifting in a plurality of stages by recombining the power transmission wheels, and the power transmission unit is detachably attached to the traveling machine body through a connector. Power transmission device in a machine.