JP2509157Y2 - Speed sprayer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a speed sprayer used for spraying a chemical solution or the like in an orchard.

[Prior Art] Conventionally, a speed sprayer used in an orchard or the like is configured to run freely, and supplies a chemical solution or the like to a large number of spray nozzles which are opened at a blower outlet of a blower provided at the rear of the speed sprayer. The chemical liquid or the like sprayed from the spray nozzle is diffused and scattered by the air blow from the blower.

In general, a traveling internal combustion engine disposed in front of the machine body is used as a power source for the diffusion and dispersion of the chemical liquid.

That is, the driving of the chemical liquid supply pump and the blower, and the stirring of the chemical liquid and the like are also performed by using the internal combustion engine for traveling.

Further, a so-called all-wheel drive type, which is equipped with a drive type front axle, has been generally used.

[Problems to be Solved by the Invention] In the conventional speed sprayer as described above,
The internal combustion engine for traveling drives the chemical liquid supply pump and the blower,
Furthermore, since it is used for stirring chemicals and the like, a power transmission device (power train) is provided in a complicatedly entangled state, and assembly and maintenance are extremely troublesome.

In addition, since the drive type front axle having a differential case is arranged below the internal combustion engine, the front part of the airframe becomes tall and the driver's front view is interrupted, making it difficult to work. Was becoming.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to improve the forward visibility, simplify the structure of the machine body, reduce the size of the machine body, and facilitate assembly and maintenance.

[Means for solving the problem]

In order to achieve the above object, the present invention provides a radiator which is spaced apart from an internal combustion engine arranged in front of a driver's seat, and a drive type front axle portion is arranged between the internal combustion engine and the radiator. A traveling main transmission and a power distribution device that receive a driving force from the internal combustion engine are arranged beside the driver's seat, and a traveling auxiliary transmission integrally provided with a drive-type rear axle portion and the traveling main transmission are provided. The transmission is connected with a propeller shaft.

[Action]

The speed sprayer of the present invention is driven in the same manner as the conventional one, at the same time, the chemical liquid is sprayed from the spray nozzle, and the sprayed chemical liquid is diffused and scattered by the air blown from the blower. By disposing the engine between the radiator and the internal combustion engine, the body portion in front of the driver's seat can be lowered.

In addition, the traveling transmission can be divided into main and sub parts to optimize weight distribution and rational use of space.
It is possible to simplify the power train and reduce the size of the entire aircraft.

According to the other embodiments shown in the drawings, since the power distribution device is provided with the blower speed changer, the blower can be switched between high rotation (large air volume) and low rotation (small air volume), which can be used according to the working condition. It is possible.

Further, since the drive of the stirring device for the chemical liquid or the like is changed from the conventional pulley and belt type to the shaft type, space is not required as in the conventional case, and the device can be made compact.

〔Example〕

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a side view showing the drive system and the whole of an all-wheel drive self-propelled speed sprayer.

In the figure, 1 is an internal combustion engine such as a diesel engine, 2 is a chemical liquid tank, 3 is an axial blower, 4 is a main power distribution device that divides the driving force of the engine 1 into three systems, 5 is a main transmission for traveling, and 6 is Propeller shaft for traveling drive, 7 is a drive-type rear axle part, 8 is an auxiliary transmission integrated with the rear axle part 7, 9 is a propeller shaft for driving a blower, and 10 is a high-speed propeller shaft.
An auxiliary power distribution device including a low two-stage fan speed change part 10 ', 11 a drive type front axle part, 12 a front axle driving propeller shaft, 13 a chemical liquid pump fixed to the power distribution device 4, and 14 a The chemical stirring device is disposed in the chemical tank 2, 15 is a shaft for driving the chemical stirring device, 16 is a spray nozzle disposed along the arc-shaped air outlet 3'of the blower 3, and 17 is the engine 1. A radiator disposed at a lower position forward through an extension fan shroud 18 ', 18 is an engine cooling fan in the fan shroud 18', 19 is a rear transmission of the engine 1 and the main transmission 5 for traveling. It is the driver's seat provided to the side of.

In the speed sprayer having the above-described configuration, the power of the engine 1 is the main power distribution device 4, the main transmission 5, the propeller shaft 6 for traveling drive, the auxiliary transmission 8, and the drive-type rear axle portion 7.
Is transmitted to the rear wheel 58 via the front wheel drive propeller shaft 12 and the front wheel 59 via the drive type front axle 11 arranged in the space below the extension fan shroud 18 '. It will also be transmitted to all wheels as necessary.

Further, the chemical liquid in the chemical liquid tank 2 is supplied to the spray nozzle 16 by the chemical liquid pump 13, and at the same time, the blower 3 is driven by the driving propeller shaft 9 so that the chemical liquid sprayed from the spray nozzle 16 is diffused and scattered by the blowing air. It is what is done.

FIG. 2 shows details of the main power distribution device 4 and the sub power distribution device 10 following the engine 1.

That is, the output of the engine 1 is output from the flywheel 21 fixed to the output shaft 20 of the main power distribution device 4 in the same manner as the disc clutch such as the disc coupling 22, the transmission shaft 23, and the traveling power connection / disconnection. It is guided to the main transmission 5 through the dry single-plate clutch 24 and the clutch shaft 25, and the traveling drive propeller shaft 6 is connected to the rear end of the main shaft 26 of the main transmission 5. There is.

Further, two intermediate gears 28 and 29 are meshed with a gear 27 provided on the transmission shaft 23, one output gear 30 is further meshed with one intermediate gear 28, and a dry single plate clutch is provided on the axis thereof. An auxiliary power distribution device 10 including a blower transmission unit 10 'is provided via a clutch shaft 32 and a clutch shaft 32, and the propeller shaft 9 for driving the blower is connected to a main output shaft 33 thereof.

Further, the other output shaft 3 of the auxiliary power distribution device 10
A drive pulley 34 of the chemical pump 13 is fixed to 3 '.

Next, a reduction gear 35 is provided on the shaft of the other intermediate gear 29, and the other output gear 36 is meshed with the drive shaft for the chemical liquid stirring device at the rear end of the shaft of the output gear 36.
15 are connected.

As described above, the output of the internal combustion engine is divided into three directions and taken out by the main power distribution device 4.

FIG. 3 shows details of the drive-type rear axle portion 7. In the figure, the auxiliary transmission 8 is shown, so the right rear wheel portion is omitted.

The other end of the propelling shaft 6 for traveling drive is connected to the auxiliary transmission 8 and the high and low two-stage outputs are transmitted to the drive shaft 37, including the drive pinion 38 provided on the drive shaft 37. Differential gear
39 are composed.

Further, the reduction gears 42 are respectively attached to the differential output shafts 40 and 41 which are projected to the left and right sides of the differential device 39.
Also, the brake drum 43 is fixed, the reduction gear 42 is meshed with the drive gear 45 provided on the left and right rear axles 44 provided in parallel with the left and right differential output shafts 40, 41, and the rear wheel 58 is provided.
Are driven at the speeds set by the main and auxiliary transmissions 5 and 8.

Furthermore, a brake cam 46 for operating the brake is freely engageable in each of the brake drums 43,
It is connected to the left and right brake pedals 55, 56 provided in the driver's seat 19 by a link mechanism described later.

Reference numeral 47 in the figure denotes a differential locking device, which is provided on the one differential output shaft 41 and temporarily stops the differential of the differential device 39 to integrally rotate the left and right rear wheels 58. It is a device for increasing the traction force and facilitating escape from soft ground or the like.
Reference numeral 48 is a front axle driving force extracting gear provided on the drive shaft 37, and an intermediate gear 49 and an output gear are sequentially provided.
The front axle driving propeller shaft 12 is connected to the shaft of the output gear 50 via a connecting / disconnecting device 51.

FIG. 4 shows a link mechanism for operating the brake cam 46.

That is, from the brake cam 46 to the arm and the interlocking shaft.
The link rods 52, 54 provided via 54 ', etc.
It is mechanically connected to the left and right brake pedals 55 and 56 provided in 9. Reference numeral 57 in the drawing denotes an interlocking metal fitting for the left and right brake pedals 55, 56 when traveling on the road.

In the present invention, in particular, in order to improve the driver's forward and downward visual field, the front part of the body is configured to be lowered. That is, the front axle portion 11 is arranged below the oil pan portion of the engine 1 in the past, whereas in the present invention, the front axle portion 11 is arranged below the front of the cooling fan 18 at the front end of the engine 1. The radiator 17 is arranged at the front end of the fuselage in front of the front axle 11, so that the lower edge of the radiator can be lower than the upper edge of the front axle 11.

Therefore, the front cover of the fuselage can be made significantly lower than the conventional one, and the driver's visual field is improved.

[Effect of device]

According to the present invention, it is possible to improve the forward field of view, simplify the internal structure and downsize the airframe, and optimize the weight distribution of the airframe and facilitate assembly and maintenance. .

[Brief description of drawings]

The drawings show one embodiment of the present invention. Fig. 1 is a side view of the whole, Fig. 2 is a longitudinal sectional view of a power distribution device, Fig. 3 is a lateral sectional view of a rear axle portion, and Fig. 4 is a brake system. It is a schematic plan view showing. 1 ... Internal combustion engine, 4,10 ... Power distribution device, 5 ... Running main transmission device, 6 ... Propeller shaft, 7 ... Driving rear axle part, 8 ... Running auxiliary transmission device, 11 ... Driven front axle, 17 …… Radiator, 19 …… Driver's seat.

Claims (1)

(57) [Scope of utility model registration request] 1. A radiator 17 is provided apart from an internal combustion engine 1 arranged in front of a driver's seat 19 and a drive type front axle portion 11 is arranged between the internal combustion engine 1 and the radiator 17. , The internal combustion engine 1 on the side of the driver's seat 19
Driving main transmission 5 and power distribution device that receive more driving force
A speed player characterized in that 4,10 are provided, and a traveling auxiliary transmission 8 integrally provided with a drive-type rear axle portion 7 and the traveling main transmission 5 are connected by a propeller shaft 6.