JPH0520522U - Transmission in fertilizer applicator - Google Patents

Abstract

(57) [Summary] [Object] The present invention is intended to simplify a transmission and its associated transmission mechanism in a fertilizer applicator, and to avoid the muddy soil from which the wheels bounce. [Composition] A mission case 2 for distributing the power of the engine 3 to wheels 7 and a fertilizer feeding device is mounted on the front part of the machine body, and a space between the mission case 2 and an axle 8 of the wheel 7 provided at the rear part thereof. A speed change device in a fertilizer applicator in which the speed change device of the fertilizer feeding device is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a transmission in a fertilizer applicator for applying fertilizer such as liquid fertilizer, paste fertilizer or granular fertilizer to a field.

[0002]

[Prior Art]

 Conventionally, a fertilizer applicator has a transmission of a fertilizer feeding device disposed behind an axle, and is transmitted to the transmission through a transmission shaft extending rearward from a transmission case that is linked to an engine, and the transmission is transmitted to the transmission. The fertilizer application part was provided behind the device and the fertilizer feeding device.

[0003]

[Problems to be solved by the device]

 In the known fertilizer applicator, since the distance between the mission case, the fertilizer feeding device and its transmission is wide in the front and rear, the transmission is complicated and large, and the fertilizing part is located further behind the fertilizer feeding device. Since it is located, the front-rear length of the fuselage becomes large, and when adding a planting device, the center of gravity of the fuselage was closer to the rear part, and the front-rear balance of the fuselage was poor. Further, since the wheel jumps up the mud behind the axle, it adheres to the transmission.

[0004]

[Means for Solving the Problems]

 According to the present invention, a mission case is attached to the front of a vehicle equipped with wheels, an engine is mounted on the mission case, and a fertilizer feeding device and a transmission of the fertilizer feeding device are provided behind the mission case. By arranging the fertilizer tank above, the front-rear balance of the machine body was improved, the front-rear length of the machine body was shortened, and the transmission was downsized to solve the above problems.

[0005]

[Action]

 The mission case distributes the power of the engine to the wheels, the fertilizer feeding device and other devices, and is transmitted to the fertilizer feeding device through the transmission. At that time, since the transmission is arranged in front of the axle, the transmission mechanism between the transmission and the transmission case can be simplified and the longitudinal balance of the body can be improved. The mud that the wheels bounce off rarely hits the transmission. Then, the fertilizer fed from the fertilizer feeding device is applied to the field in the fertilizer application section.

[0006]

【Example】

 The present invention will be described in more detail with reference to an embodiment shown in the drawings. A mission case 2 is attached to a front portion of a body 1, an engine 3 is mounted on the mission case 2, and a wheel drive projecting from the mission case 2 to the left and right. A wheel 7 is mounted on an axle 8 at the rear of a swing chain case 6 whose front part is swingably mounted on a shaft 5, and a seedling that reciprocates laterally at the rear of the machine body 1. A planting device 12 consisting of a platform 10 and a plurality of plant bodies 11 for planting the mat seedlings in the seedling platform 10 by scraping off one by one and planting them in a field that has been scraped, is attached below A rear part is pivotally supported on the rear end part of the body 1 so as to be vertically swingable, and a front part is provided with a float 13 which is vertically movable by a link. The front part of the engine 3 is provided with a shaft in the front-rear direction. One end of the balance rod 15 pivotally supported by A rod 17 is connected to an arm 16 protruding from the front part of the base 6, and the other end is connected to an arm protruding from the front part of the other swing chain case 6 through a hydraulic cylinder 18 for horizontal sensing. The horizontal control of the machine body is performed by switching the hydraulic valve 19 and operating the hydraulic cylinder 18 according to the detection result of the sensor. 20 is a muffler and 21 is an air cleaner.

Further, the tank stay 23 of the fuel tank 22 is provided with a tray 23a on which the fuel tank 22 is mounted and whose ribs are screwed by bolts 25 ,. 2 and a column portion 23b screwed to the stay bolt 26, and the front portion of the tray 23a is supported by a goat bolt 26a standing upright from the engine 3.

A transmission 28 of a fertilizer application pump 27, which constitutes a fertilizer feeding device, is provided in the upper part of the mission case 2 near the rear part and in front of the axle 8, and the front part of the case is provided. Is attached to one side of the connecting metal 30 having a U-shape in a plan view with two bolts 31 and 31 nuts 31a and 31a, and the other side of the connecting metal 30 is bolted to the column portion 23b of the tank stay 23. 32, 32. The front portion is screwed to the outside of the transmission 28 with bolts 29, ..., and the rear portion is screwed to the bonnet stay 33. The fertilizer application pump 27 is attached.

The drive shaft 34 of the mission case 2 is formed as a screw shaft that reciprocates the seedling table 10 to the left and right, and protrudes from the sprocket 36 attached to the outer end of the screw shaft and the lower rear portion of the transmission 28. The chain 39 is stretched over the sprocket 38 attached to the input shaft 37, and the sprocket 41 attached to the output shaft 40 near the upper front and one sprocket 42 attached to the pump shaft on the front side of the fertilizer pump 27. The fertilizer pump 27 is driven by stretching the chain 43 and stretching the chain 47 on the other sprocket 45 and the sprockets 46 attached to the rear pump shaft. Further, the fertilizer pump 27 is shifted in a plurality of steps by the main shift lever 48, the sub shift lever 49 is switched between high speed, neutral and low speed, and the outside of each chain 43, 47 extending from the output shaft 40 to the fertilizer pump 27. The cover 50 covering the cover is detachably attached by two bolts 51, 51 and wing nuts 52, 52 protruding from the mounting base 35, and the front cover 57 is attached to the right side of the transmission case 2 by the bolts 56, 56. The plate 58 fixed to the rear outer surface of the front cover 57 by screwing is extended rearward, the input shaft 37 is penetrated, and the rear cover 60 that covers the chain 39 is the plate 58. On the other hand, bolts and wing nuts 61, 61 are detachably attached.

The upper surfaces of the engine 3 and the fertilizer application pump 27 are covered with a bonnet 62, and the front part of the fertilizer tank 63 arranged above the bonnet 62 is U-shaped in front view and plan view, and the lower part is attached. It is attached to the upper end of a front stay 67 attached to the bent portion of the bumper 66 by the plate 64 and bolts 65, and the rear portion is screwed to the plate 69 standing on the indicator receiver 68 to support the indicator receiver 68. The indicator stay 71 has a fulcrum 70, and the lower part thereof is fastened to the bonnet stay 33 together with the mounting base 35 by bolts 72, 72. 63a is a remaining amount gauge.

The indicator receiver 68 is located at a position slightly lower than the bottom surface of the fertilizer tank 63, and the hose 75 from the fertilizer pump 27 is connected to the inlets of the plurality of indicators 73 mounted on the indicator receiver 68. Is connected in the space between the bonnet 62 and the fertilizer tank 63 by bending it backward, and the outlet of the coupler 78 is attached to the float 13 by the hose 76. .. and the lever 79 of the indicator 73 is leveled, the paste fertilizer pumped from the fertilizer application pump 27 is pumped to the nozzle 77 and discharged into the mud, and when it turns upward, it passes through the return hose 80 and fertilizer. When returning to the tank 63 and rotating downward, cleaning is performed. Further, since the coupler 78 faces rearward and is located in front of the axle 8, the mud scattered on the coupler 78 itself is less likely to fall, and the hose 76 is provided between the axles 8 and 8. It is possible to dispose a portion corresponding to the front from the upper side and to prevent the mud from adhering to the hose 76. Further, as shown in FIG. 2, the hoses 76 and 76 are arranged on both sides of the main speed change lever 48 and the sub speed change lever 49 from one side of the laterally arranged indicators 73. After being separated, the couplers 78 are connected.

In the fertilizer application planter described above, the power of the engine 3 is distributed to the wheels 7, 7 and the planting device 12 and the fertilizer pump 27 by the mission case 2 provided immediately below the fertilizer pump 27. The chain 39 that extends obliquely upward and rearward, the transmission 28, and the chain 43 whose rear part overlaps the chain 39 in the upper and lower directions are transmitted, and the transmission 28 and the fertilizer pump 27 are transferred to the engine 3 on the mission case 2. By arranging it, it becomes possible to install it closer to the front than the conventional one as shown in FIG. 1, and as a result, both of them are distributed to the front and rear with respect to the axle 8, and the center of gravity of the axle 8 is reduced. It is possible to improve the front-rear balance of the entire machine body including the rear planting device 12, which becomes heavy during the planting work, with the wheel 7 on the axle 8. Although the mud is flipped up at the rear part of the vehicle, since the speed change device 28 is arranged at the front part of the axle 8, it is less likely that the speed change device 28 will fall on the chains 39 and 43. It can be protected by a simple bar.

Further, the fertilizer application pump 27 sucks and discharges the liquid fertilizer in the fertilizer tank 63, and the discharged liquid fertilizer is sent to the nozzle 77 through the hose 75, the indicator 73, and the hose 76. By adjusting the angle of the nozzle 77, the fertilizer is applied to a desired depth in the mud.

[0014]

[Effect of the device]

 According to the present invention, a mission case 2 for distributing the power of the engine 3 to the wheels 7 and the fertilizer feeding device is mounted on the front part of the machine body, and the mission case 2 and the axle 8 of the wheel 7 provided on the rear part of the mission case 2. Since the speed change device 28 of the fertilizer feeding device is arranged in the space between the two, the gap between the speed change device 28 and the mission case 2 becomes narrower, the transmission mechanism can be made smaller and simpler, and the rear part of the machine body can be provided. The front and rear balance of the machine will not deteriorate even if other work machines are installed. Further, the wheel 7 jumps up the mud at the rear part of the axle 8, but since the transmission 28 and the transmission mechanism associated therewith are located in front of the axle 8, it is possible to prevent the mud from falling.

[Brief description of drawings]

FIG. 1 is a side view of a walk-behind fertilizer transplanter.

FIG. 2 is a plan view of the same.

FIG. 3 is a side view of the mission case, engine and fertilizer pump.

FIG. 4 is a plan view of the same.

5 is a cross-sectional view taken along the line AA of FIG.

6 is a sectional view taken along line BB of FIG.

FIG. 7 is a side view of an indicator mounting portion.

[Explanation of symbols]

 2 mission case 3 engine 7 wheel 8 axle 12 planting device 22 fuel tank 23 tank stay 27 fertilizer pump 28 transmission device 33 bonnet stay 34 drive shaft 35 mounting base 37 input shaft 39 chain 40 output shaft 43 chain 57 front cover 60 rear part Cover 63 Fertilizer tank 67 Front stay 73 Indicator 77 Nozzle

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display area A01C 23/02 F 2101-2B

Claims (1)

[Scope of utility model registration request] 1. A mission case 2 for distributing the power of an engine 3 to a wheel 7 and a fertilizer feeding device is mounted on the front part of the machine body, and between the mission case 2 and an axle 8 of the wheel 7 provided on the rear part thereof. The speed change device 28 of the fertilizer feeding device is disposed in the space described above.