CN106856753B

CN106856753B - Working vehicle

Info

Publication number: CN106856753B
Application number: CN201611130400.XA
Authority: CN
Inventors: 今泉大介
Original assignee: Iseki and Co Ltd
Current assignee: Iseki and Co Ltd
Priority date: 2015-12-11
Filing date: 2016-12-09
Publication date: 2020-03-03
Anticipated expiration: 2036-12-09
Also published as: CN106856753A; KR20170069939A; JP2017104066A; JP6465010B2; TWI608792B; KR101946893B1; TW201735775A; MY191609A

Abstract

The invention provides a working vehicle capable of adjusting fertilizing amount in a left-right consistent manner for fertilizing devices arranged in a left-right split mode. The work vehicle is provided with a left and right fertilization module arranged on a machine body, a fertilization amount adjusting part (13) is arranged below one of the left and right fertilization modules, the fertilization amount adjusting part (13) transmits fertilization power from a first transmission shaft (12) and can adjust fertilization amount, a left and right transmission rod (14b) for transmitting the fertilization power from the fertilization amount adjusting part (13) to the one of the left and right fertilization modules is arranged, and a second transmission shaft (14) for transmitting the fertilization power from the fertilization amount adjusting part (13) to the other of the left and right fertilization modules is arranged in a mode of stretching from the lower part of the one of the left and right fertilization modules to the lower part of the other of the left and right fertilization modules.

Description

Working vehicle

Technical Field

The present invention relates to a working vehicle including a floor step serving as a working space in a body on which a fertilizer applicator is mounted.

Background

In a work vehicle such as a seedling transplanter for performing operations such as planting seedlings in a farm field, a technique is known in which a fertilizer applicator for supplying fertilizer to the farm field is provided. In the related art, patent documents disclose that work efficiency such as a seedling replenishing work of a seedling transplanting device from a seedling stage at the front of a vehicle body to a seedling at the rear is improved by installing fertilizer applicators on the left and right sides of a traveling vehicle body to secure a work space.

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent publication No. 2015-163057

Disclosure of Invention

However, in the conventional fertilizer applicators, due to the influence of the transmission means for the driving force to the fertilizer applicators and the arrangement of the fertilizer application amount adjusting devices, the weight balance of the left and right fertilizer applicators and the adjustment of the left and right fertilizer application operations are insufficient, and the fertilizer application amounts in the left and right fertilizer applicators vary, and as a result, the seedling growth locations vary, the operation times of the subsequent steps such as harvesting vary, and the quality of the harvested products deteriorates.

In addition, the driving part and the fertilizing amount adjusting mechanism of the prior patent document are arranged at the rear lower part of the bottom plate pedal, so that the fertilizing amount is difficult to adjust, and the safety problem caused by the rotation of the driving shaft exists.

The invention aims to provide a working vehicle which can adjust fertilizing amount according to left and right of a fertilizing device which is arranged in a left-right split mode.

The invention according to claim 1 is a working vehicle comprising a pair of left and right fertigation modules 7 respectively disposed on the left and right sides of a machine body, a main frame 3 supported by front and rear wheels so as to be capable of traveling in a farmland, a floor step 4, left and right fertigation frames 8 provided to support the pair of left and right fertigation modules 7,

a front frame 3a for connecting the front side of the left and right fertilizing frames 8 and the left and right main frames 3, a rear frame 3b for connecting the rear side of the left and right fertilizing frames 8 and the left and right main frames 3,

a fertilizing amount adjusting part 13, wherein the fertilizing amount adjusting part 13 can adjust the fertilizing amount by transmitting fertilizing power from the first transmission shaft 12, a left and right transmission rod 14b for transmitting fertilizing power from the fertilizing amount adjusting part 13 to one left and right fertilizing module 7, and a second transmission shaft 14 for transmitting fertilizing power from the fertilizing amount adjusting part 13 to the other left and right fertilizing module 7 are provided,

the side ends of the first transmission shaft 12 are provided on one of the left and right sides of the left and right fertilizer frames 8, the both sides of the second transmission shaft 14 are provided on the left and right rear frames 3b, and one of the left and right rear frames 3b and one of the left and right fertilizer frames 8 are fixed by bolts.

The invention of scheme 2 is based on the invention of scheme 1, and is made into the following structure: a main transmission lever 11a for transmitting traveling power to the first transmission shaft 12, and a left and right other transmission lever 14b for transmitting power from the second transmission shaft 14 to the left and right other fertilization modules 7 are provided, and the lengths of the main transmission lever 11a and the left and right other transmission lever 14b can be adjusted.

The present invention has the following effects.

According to the invention of claim 1, the front sides of the left and right fertilizing frames 8 are connected to the main frame 3 via the left and right front frames 3a, and the rear sides of the left and right fertilizing frames 8 are connected to the main frame 3 via the left and right rear frames 3b, thereby achieving improvement in durability.

Further, by configuring to fix one of the left and right rear frames 3b and one of the left and right fertilizer frames 8 with bolts, the deviation can be corrected and fixed with bolts at the same time, thereby suppressing the deviation due to the body difference to the minimum. Therefore, in the structure for transmitting power to the left and right sides, an additional transmission shaft, an adjustment mechanism, and the like are not required, and the left and right operation accuracy can be ensured at low cost.

According to the invention of claim 2, in addition to the effect of the invention of claim 1, the length of the main transmission rod 11a can be adjusted, and the length of the other transmission rod 14b of the pair of left and right transmission rods 14b can be adjusted, so that the output of the pair of left and right fertilization modules 7 can be adjusted, and maintenance can be performed efficiently.

Drawings

Fig. 1(a) is a plan view showing a main part of the passenger seedling transplanter, and fig. 1(b) is a side view showing a main part of the passenger seedling transplanter.

Fig. 2 is a plan view of the main part of the fertilization drive system.

Fig. 3 is a side view of the main part of the fertilization drive system.

Fig. 4 is a rear view of a main part of the fertilization drive system.

Fig. 5 is a plan view of a main portion around the fertilizing apparatus.

Fig. 6 is a left side view of a main part of the left side fertilizing apparatus.

In the figure: 1 working vehicle (passenger seedling transplanter), 3 main frames, 3a fertilization front frame, 3b rear frame, 4 bottom plate pedals, 7 fertilization modules (fertilization devices), 8 fertilization frames, 11 transmission boxes, 11a main transmission rod, 12 first transmission shafts, 13 fertilization amount adjusting parts, 14 second transmission shafts, 14a fulcrums, 14b transmission rods, 22 air supply pipelines, 22a air chambers, 22b bending parts, 23 discharge pipelines and 23a discharge ports.

Detailed Description

Embodiments of the invention specifically configured based on the technical ideas are described in detail below with reference to the drawings. In the description, the front-back and left-right are described with reference to the forward direction (F) of the machine body.

Fig. 1(a) is a plan view showing a main part of a passenger seedling transplanter which is an inventive work vehicle, and fig. 1(b) is a side view showing a main part of the passenger seedling transplanter.

The working vehicle 1 includes a floor step 4 on a main frame 3 supported by front and rear wheels 2a, 2b so as to be able to travel in a field, a seedling transplanting device 5 as a field working device on a rear portion of the main frame 3, and fertilizer modules 7 in which a plurality of fertilizer applying units (3 in the example shown in the figure) are arranged in a front-rear direction on the left and right sides of the machine body so as to be able to perform a travel interlocking operation.

As shown in fig. 2, 3, and 4, which sequentially show a plan view of a main portion, a side view of a main portion, and a rear view of a main portion of the fertilization drive system, the left and right fertilization modules 7 extend from the main frame 3 to the left and right to support the fertilization frames 8, respectively, the left and right fertilization front frames 3a and the left and right rear frames 3b are provided on the left and right of the main frame 3, and the front and rear of the left and right fertilization frames 8 are fixed, respectively.

Further, a fertilizing amount adjusting unit 13 is provided below the fertilizing modules 7 on one side (right side in the drawing), a first transmission shaft 12 is connected to the front side thereof, and branched fertilizing power is received from the rear wheel transmission case 11 on the same side, and a second transmission shaft 14 is provided which is connected to the rear side of the fertilizing amount adjusting unit 13 and reaches the lower side of the left and right fertilizing modules 7, whereby the transmission system of the left and right fertilizing modules 7 is configured below the floor panel 4 and the left and right fertilizing modules 7.

A fulcrum 12a of a side end of the first transmission shaft 12 and a fulcrum of the fertilizing amount adjusting part 13 are provided in one plate of the right fertilizing frame 8, both end fulcrums 14a of the second transmission shaft 14 are provided in the left and right rear frames 3b, and the right rear frame 3b and the fertilizing frame 8 are fixed by bolts at positions between the fulcrum of the fertilizing amount adjusting part 13 and the right fulcrum 14a of the second transmission shaft 14.

In this way, the transmission system protection and the safety can be ensured outside the working space, and by providing the fulcrum 12a of the first transmission shaft 12 and the fulcrum of the fertilizing amount adjusting portion 13 to the fertilizing frame 8 and the fulcrum 14a of the second transmission shaft 14 to the rear frame 3b, the fluctuation caused by the difference in the machine body can be minimized, and in the side fertilizing structure for transmitting power to the left and right, the additional transmission shaft and the length adjusting mechanism are not required, and the left and right working accuracy can be ensured at low cost.

The length of the main transmission lever 11a connected from the rear wheel transmission case 11 to the upper first transmission shaft 12 and the left and right transmission levers 14b connected from both ends of the second transmission shaft 14 to the respective one-way clutch portions 7a of the upper left and right fertilizer modules 7 are adjustable.

The fertilizing amount adjusting part 13 is connected to the first transmission shaft 12 and the second transmission shaft 14 through the input link 13a and the output link 13b, respectively, and the input/output ratio can be adjusted by swinging the fulcrum moving handle 13c, whereby the traveling power is branched from the rear wheel transmission case 11, and the fertilizing module 7 can be driven to the left and right from the second transmission shaft 14 through the first transmission shaft 12 and the fertilizing amount adjusting part 13 with an adjustable output amount.

In the transmission system having the above configuration, the output of the entire system is adjusted by the main transmission lever 11a, and the difference in the output between the right and left is suppressed by the right and left transmission levers 14b, whereby the output of the right and left fertilization modules 7 can be effectively adjusted.

(fertilizer delivery part)

As shown in fig. 5, fig. 5 is a plan view of a main portion around the left and right fertilizer modules 7, in the fertilizer application part, the fertilizer application pipe 21 … reaching the seedling transplanting device 5 disposed at the rear is connected to the outside of the body of each unit of the left and right fertilizer modules 7, the air chamber 22a for supplying air to each unit is provided in a substantially コ shape from the inside of the body so as to communicate left and right along the rear edge of the floor panel 4, and the left and right bent parts 22b are formed in a T shape.

Further, discharge ducts 23 are provided on the outer side portions of the left and right fertilizer application modules 7, respectively, and rear ends thereof are supported by left and right bent portions 22b of the air chamber 22a, and front ends thereof are inclined downward and forward as discharge ports 23a that can be opened and closed by caps, as shown in fig. 6, which is a left side view of a main portion of the left fertilizer application module 7.

Since the discharge ports 23a are provided in the left and right discharge ducts 23 as described above, ducts for concentrated discharge, air direction switching members, and the like are not required, and therefore, the fertilizer applicator can be configured at low cost and easily, and when the two discharge ports 23a are closed by caps during a fertilizing operation, a single fan can secure an air volume, and when the residual fertilizer is discharged, the discharge speed can be secured due to the inclination of the left and right discharge ducts 23, and the residual fertilizer can be discharged without retaining water or fertilizer inside, and therefore, cleaning is easy.

(technical significance)

The technical significance of the structure of the work vehicle described above is summarized as follows.

The work vehicle having the above-described configuration includes the floor step 4 in the main frame 3, and the fertilizing modules, which are constituted by 2 fertilizing modules 7 disposed on the left and right sides of the floor step 4 and are capable of running in interlocking motion by the transmission shaft, wherein the left and right fertilizing frames 8 supporting the left and right fertilizing modules 7 are extended to the left and right from the main frame 3, and the left and right fertilizing front frames 3a, which are respectively fixed to the front sides of the left and right fertilizing frames 8, are provided in the main frame 3.

In this way, the fertilizing modules 7 can be arranged on the left and right sides of the main frame 3 by the fertilizing frames 8 on the left and right sides of the machine body, and the left and right fertilizing frames 8 are fixed to the main frame 3 by the left and right fertilizing front frames 3a, respectively, thereby improving durability.

Further, the fertilizer modules 7 are provided on both the left and right sides of the traveling vehicle body, thereby enlarging the working space and improving the workability, and the balance of the traveling vehicle body is also improved.

The transmission shafts are constituted by a first transmission shaft 12 for transmitting the fertilizing power to one of the left and right fertilizing modules 7 through a fertilizing amount adjusting part 13 for adjusting the fertilizing amount, and a second transmission shaft 14 for transmitting the fertilizing power between the left and right fertilizing modules 7, and these first transmission shaft 12 and second transmission shaft 14 are disposed below the floor panel 4 and the left and right fertilizing modules 7.

In this way, the fertilizing power is transmitted from the first transmission shaft 12 to one fertilizing module 7 so that the fertilizing amount can be adjusted by the fertilizing amount adjusting part 13, and is transmitted to the other fertilizing module 7 via the second transmission shaft 14, and the first transmission shaft 12, the fertilizing amount adjusting part 13, and the second transmission shaft 14, which are transmission components, are disposed below the floor pedal 4 and the left and right fertilizing modules 7, whereby the floor pedal 4 and the fertilizing modules 7 function as a guard of the transmission system, and safety is improved. In addition, the working space on the floor panel 4 is not obstructed.

The work vehicle is provided with a transmission case 11 for branching the traveling power from the traveling support portion of the main frame 3, a main transmission lever 11a for connecting the transmission case 11 and the first transmission shaft 12, and right and left transmission levers 14b for connecting the second transmission shaft 14 and the right and left fertilizer modules 7, respectively, and the lengths of the main transmission lever 11a and the transmission levers 14b are adjustable.

In this way, the output of the left and right fertilizer application modules 7 can be adjusted with a minimum configuration by the length-adjustable adjustment rods provided at the 3 positions, and therefore, maintenance can be performed efficiently.

In the work vehicle, rear frames 3b to which the rear portions of the left and right fertilizing frames 8 are fixed are provided on the left and right sides of the main frame 3, respectively, and fulcrums 14a of the second transmission shafts 14 are provided, respectively, and the fertilizing frame 8 and the rear frames 3b are connected to each other at a fulcrum of the fertilizing amount adjusting portion 13 at an intermediate position from the fulcrum 14a of the second transmission shaft 14 on the same side.

In this way, the fertilizing frame 8 and the rear frame 3b are connected to the fulcrum of the fertilizing amount adjusting part 13 at the middle position of the fulcrum 14a of the second transmission shaft 14 on the same side, so that the fluctuation caused by the difference of the machine body can be reduced, the additional transmission shaft and the length adjusting mechanism are not required to be arranged, and the cost can be reduced.

Further, the work vehicle is provided with left and right air supply ducts 22 for supplying transport air from the inside of the machine body to the left and right fertilizer modules 7, and left and right discharge ducts 23 for discharging residual fertilizer to the outside of the machine body, and the left and right discharge ducts 23 are provided with openable and closable discharge ports 23a, respectively.

In this way, the blower duct 22 is inside the body and the discharge duct 23 is outside the body, so that the fertilizer can be discharged from the outside of the body by opening the left and right discharge ports 23a, and the work efficiency is good.

Further, by performing the discharge of the fertilizer separately on the left and right sides, it is not necessary to concentrate the remaining fertilizer in 1 duct or switch the air direction when discharging the fertilizer. Further, an air direction switching fitting or the like is not required, and the structure can be made at low cost.

Further, in the work vehicle, an air chamber 22a communicating with the left and right air blowing ducts 22 is provided along the rear edge of the floor panel 4, and left and right discharge ducts 23 are supported obliquely forward and downward from left and right bent portions 22b of the air chamber 22a, and have discharge ports 23a at the front ends thereof.

In this way, the left and right outer discharge ducts 23 are supported to be inclined forward and downward up to the discharge port 23a, so that the residual manure is easily dropped by its own weight to improve the discharge speed, and the residual manure can be discharged with a small amount of air. In addition, the infiltration of rainwater is prevented, and water and fertilizer are not accumulated, so that the maintenance property is improved.

Claims

1. A work vehicle provided with a pair of fertilizer modules (7) disposed on the left and right of a machine body,

a main frame (3) which is supported by the front and rear wheels so as to enable the working vehicle to run on a farmland is provided with a bottom plate pedal (4), a left fertilization frame (8) and a right fertilization frame (8) which support a pair of fertilization modules (7),

a front frame (3a) connecting the front sides of the left and right fertilizing frames (8) and the left and right main frames (3), a rear frame (3b) connecting the rear sides of the left and right fertilizing frames (8) and the left and right main frames (3),

a fertilizing amount adjusting part (13), wherein the fertilizing amount adjusting part (13) transmits fertilizing power from a first transmission shaft (12) and can adjust fertilizing amount, a left and right transmission rod (14b) for transmitting fertilizing power from the fertilizing amount adjusting part (13) to one fertilizing module (7) is arranged, a second transmission shaft (14) for transmitting fertilizing power from the fertilizing amount adjusting part (13) to the other fertilizing module (7) is arranged,

one end of the first transmission shaft (12) is provided on one of the left and right sides of the left and right fertilizing frames (8), the other end of the second transmission shaft (14) is provided on the left and right rear frames (3b), and the one rear frame (3b) of the left and right rear frames (3b) and the one fertilizing frame (8) of the left and right fertilizing frames (8) are fixed by bolts.

2. The work vehicle according to claim 1,

a main transmission rod (11a) for transmitting traveling power to the first transmission shaft (12) is provided, a left and right other transmission rod (14b) for transmitting power from the second transmission shaft (14) to the other fertilization module (7) is provided, and the lengths of the main transmission rod (11a) and the left and right other transmission rod (14b) can be adjusted.