JP2003275641A - Driving device for speed sprayer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a speed sprayer in which a size of a machine body is made compact by simplifying a power transmission mechanism of an engine. <P>SOLUTION: In the speed sprayer, a driver's seat, chemical tank, engine room and spraying part are arranged on a truck frame. A single engine output shaft provided in an engine room and a hydraulic continuously variable transmission carrying out a counter shaft driving transmission in parallel to this output shaft and assembled to a traveling mission at a front part of the counter shaft are connected to make a size of the machine body compact. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive device for a speed sprayer.

[0002]

2. Description of the Related Art As a speed sprayer having a transmission structure by a single engine, "J.
-15989 ". This is a configuration in which running stability is improved by a configuration considering the balance of the body weight.

[0003]

According to the above-mentioned known technique, since a plurality of counter shafts and belt transmission mechanisms are arranged, there is a problem that a large space is required for arranging them and the entire machine body becomes large. Therefore, the purpose of the invention is
(EN) Provided is a speed sprayer in which the size of the machine body is made compact by simplifying the structure of the power transmission mechanism of the engine and the turning performance is improved.

[0004]

In order to solve the above-mentioned problems, in a speed sprayer in which a driver's seat, a chemical liquid tank, an engine room and a spray section are arranged in a bogie frame, a single engine provided in the engine room Output shaft and a counter shaft in parallel with the output shaft, the drive fan is transmitted at the rear part of the counter shaft, and the hydraulic continuously variable transmission assembled to the traveling mission is installed at the front part of the counter shaft. The present invention provides a drive device for a speed sprayer, which is connected and at least a hydraulic type continuously variable transmission can be operated to change gears from a driver's seat. Further, the hydraulic continuously variable transmission is a main shift, the traveling mission is a sub shift, and the shift operation can be switched by one lever.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described with reference to the drawings. FIG. 1 is a side view showing the entire embodiment of the present invention, which is a partial cross-section, FIG. 2 is a rear view of a main portion of the present invention, and FIG. 3 is a power transmission diagram of the present invention.

Referring to FIG. 1, reference numeral 1 is a seat forming a driver's seat with two steering wheels. Reference numeral 3 denotes a chemical liquid tank, which is arranged in the center of the self-propelled carriage. Reference numeral 4 denotes an engine, and 5 is an output shaft parallel to the traveling direction and directed rearward. Power is transmitted from the output shaft 5 to a counter shaft 6 parallelly via a belt 7. A belt 9 is arranged behind the counter shaft 6 for transmitting power to the blower fan 8.
Reference numeral 12 is a gearshift lever for traveling.
The sub-shift can be switched. 13 is a nozzle. 14 is a rear wheel.

Referring to FIG. 2, a counter shaft 6 parallel to the traveling direction protruding from the engine 4 and parallel to the rearward output shaft 5 is arranged to transmit the drive. Reference numeral 8 denotes a blower fan, which takes power from the rear portion of the counter shaft 6 to the belt 9. Although not shown, the tension clutch enables continuous operation from the driver's seat. Reference numeral 15 is a dynamic injection pump for extracting power from the intermediate portion of the counter shaft 6 to the belt 16.
Although not shown, the tension clutch enables continuous operation from the driver's seat.

FIG. 3 is a power transmission diagram, which projects from the engine 4. A pulley 7a is provided at the shaft end of the output shaft 5 which is parallel to the traveling direction and directed rearward, and an engine side portion and a counter shaft 6 which is one axis for driving the blower fan and driving for traveling are arranged in parallel with the output shaft 5. The pulley 7 at the rear end of the counter shaft 6.
b is provided to transmit power from the belt 7 to the blower fan 8. Therefore, the counter shaft 6 can fit within the length of the engine body. Therefore, the engine room is made compact by eliminating unnecessary space.

A pulley 9a is provided at the rear portion of the counter shaft 6, and a pulley 9b is provided at the shaft end of the blower fan 8, and power is transmitted by the belt 9. The hydraulic continuously variable transmission 10 is arranged in front of the counter shaft, and the traveling mission 11 is arranged subsequently. Each can be operated remotely by a gear shift lever 12 provided in the driver's seat.

The hydraulic continuously variable transmission 10 is used as the main speed change, and the gear shift lever 12 is operated in the forward operation direction F1 to operate the variable bracket 10a attached to the hydraulic continuously variable transmission 10 via the speed change wire of W1. However, by operating in the rearward operating direction F2, the traveling speed can be adjusted steplessly according to the amount of tilting each of the backward movements.

By making the traveling mission 11 a sub-shift and operating the shift lever in the high speed traveling operating direction F3,
The gear shift bracket 11a is operated via the gear shift wire of W2, the gear is shifted to a high speed traveling gear, and the gear shift lever is operated in the low speed traveling operating direction F4, whereby the gear shift bracket 11a is operated via the gear shift wire of W2 to travel. Shift to the gear for use. The counter shaft 6 is provided with a pulley 16a, and the input shaft end of the dynamic injection pump 15 is provided with a pulley 16a to transmit power by the belt 16. Although not shown, an electromagnetic clutch may be used for power transmission to the blower fan.

[0012]

[Effect] With the configuration as described above, the counter shaft can be contained within the length of the engine body, and power can be taken out from the counter shaft to drive the blower fan and drive the traveling, so that the number of parts can be reduced, It can be finished in a simple and compact body.

[Brief description of drawings]

FIG. 1 is a side view showing an entire embodiment in which the present invention is implemented, and a part of which is a cross section.

FIG. 2 is a rear view of an essential part of the present invention.

FIG. 3 is a power transmission diagram embodying the present invention.

[Explanation of symbols]

1 seat 2 handles 3 chemical liquid tank 4 engine 5 Engine output shaft 6 counter axis 7 belt 7a Engine output shaft pulley 7b Counter shaft input pulley 8 Blower fan 9 belt 9a Blower fan output pulley 9b Blower fan input pulley 10 hydraulic type continuously variable transmission 10a variable bracket 11 Running mission 11a speed change bracket 12 shift lever 13 spray nozzles 14 rear wheels 15 Dynamic injection pump 16 belts 16a Dynamic injection pump output pulley 16b Dynamic injection pump input pulley F1 Forward operation direction F2 reverse operation direction F3 High-speed running direction F4 low speed running direction W1 speed change wire W2 speed change wire

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yoshiaki Kamata             No. 1 Satonosawa, Sanbongi, Towada City, Aomori Prefecture             259 Inside Sasaki Corporation F-term (reference) 4D074 AA05 BB06 CC06 CC13

Claims (2)

[Claims] 1. In a speed sprayer in which a driver's seat, a chemical tank, an engine room and a spray section are arranged in a bogie frame, an output shaft of a single engine provided in the engine room and a counter parallel to the output shaft. A shaft is provided, and a blower fan is driven and transmitted at a rear portion of the counter shaft, and a hydraulic continuously variable transmission assembled to a traveling mission is connected to a front portion of the counter shaft. A drive device for a speed sprayer characterized in that it is possible to perform gear shift operation from the. 2. The speed sprayer according to claim 1, wherein the hydraulic continuously variable transmission is a main shift, the traveling mission is a sub shift, and the shift operation can be switched by one lever.