JPH0123243Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a self-propelled working machine such as an onion harvester.
The purpose is to make effective use of the space above the engine, intermediate transmission, control section, etc., and to reduce the width of the vehicle body.

In a crawler-type onion harvester, etc., a pair of left and right crawlers are installed below the vehicle body, and an engine and an intermediate transmission device are mounted on the front of the vehicle body, and the power from the engine is transmitted through the intermediate transmission device to the left and right pair of crawlers. The transmission is transmitted to a traveling transmission device disposed between the crawlers, and each crawler is driven by this traveling transmission device (see, for example, Japanese Utility Model Application Publication No. 76028/1983). However, in conventional work machines of this type, the output shaft of the engine is arranged horizontally, so
The positional relationship between the engine and intermediate transmission is poor, with the engine and intermediate transmission being placed with a large shift in the front and back, and the control section for the transmission system and the driver's seat are located in the front and rear directions, so the space above them should be used effectively. I couldn't do it. Furthermore, since the driver's seat was located above the engine, noise and vibration were easily transmitted to the driver's seat.

The present invention has been developed to solve these conventional problems, and its characteristics are that the vehicle body 1 is equipped with an engine 3 and an intermediate transmission device 4, and the power from the engine 3 is transmitted to the vehicle body 1. In the self-propelled work machine in which the transmission is transmitted to the traveling transmission device 5 via the intermediate transmission device 4, the engine 3, the intermediate transmission device 4, and the control section 19 of the transmission device 4 are arranged in this order in the lateral direction. In addition to being arranged in parallel, the control section 1
A driver's seat 2 is disposed on the side opposite to the engine 3 of No. 9 and protrudes laterally outward from the vehicle body 1.
6 is provided, and the engine 3 is disposed at one end in the lateral direction of the vehicle body 1 so that its crankshaft 6 extends in the longitudinal direction.

The present invention will be described in detail below with reference to the illustrated embodiment, and the drawings illustrate an onion harvester as an example of a self-propelled working machine. In FIGS. 1 to 3, reference numeral 1 denotes a vehicle body, which is provided with a pair of left and right crawlers 2. Reference numeral 3 denotes an engine, 4 an intermediate transmission, and 5 a traveling transmission, which are respectively provided on the front end side of the vehicle body 1. The engine 3 is disposed at one end in the lateral direction of the vehicle body 1 so that the crankshaft 6 extends in the longitudinal direction, and a radiator 7 is provided behind the engine 3. The intermediate transmission device 4 is attached to the vehicle body 1 on the inside of the engine 3, and is arranged so that the input shaft 8 faces in the longitudinal direction parallel to the crankshaft 6, and the input shaft 8 is connected to the pulleys 9, 10, It is interlocked and connected to the crankshaft 6 via a winding transmission mechanism 12 consisting of a belt 11. Traveling transmission device 5
is arranged between the left and right pair of crawlers 2 and slightly offset to the side opposite to the engine 3, and the traveling transmission device 5 transmits power to each crawler 2 via a steering clutch (not shown). It is composed of The traveling input shaft 13 of the traveling transmission device 5 is connected to the traveling transmission shaft 18 of the intermediate transmission device 4 via a winding transmission mechanism 17 consisting of pulleys 14, 15 and a belt 16.
is linked to. Note that this winding transmission mechanism 17 is located at the center of the vehicle body 1 in the lateral direction. Reference numeral 19 denotes a control section, which is located on the side of the intermediate transmission 4. This control section 19 includes a gear shift lever 20 and a clutch lever 2 for the intermediate transmission 4.
1, 22, or a speed change lever 23 erected on the traveling transmission device 5, etc., are centrally arranged. 2
Reference numeral 4 denotes a step, which is provided so as to protrude forward and laterally outward from the vehicle body 1. A driver's cab 25 is provided at the front end of this step 24, and a driver's seat 26 is provided at the rear. A tank 27 is arranged. The driver's cab 25 is provided with a handrail 28 and a pair of steering clutch bars 29 for the aforementioned steering clutch. Reference numeral 30 denotes an onion digging device, which is attached to a conveyor frame 32 of a digging conveyor 31, and a pair of left and right gauge wheels 33 are attached to this conveyor frame 32. Excavation conveyor 3
Reference numeral 1 is for picking up onions from the field, and is pivotally supported by a conveyor frame 35 of a rear lifting conveyor 34 so as to be vertically movable, and can be raised and lowered by a cylinder 36. The lifting conveyor 34 extends upward from the front side of the engine 3, the intermediate transmission device 4, and the control section 19, and is arranged so as to be inclined rearward, and its conveyor frame 35 is attached to the vehicle body 1 so that its angle can be adjusted. There is. Note that the lifting conveyor 34 has a large number of claws to prevent onions from falling. Further, a cover 36 is provided on the lower side of the lifting conveyor 34 over substantially the entire width to prevent mud and the like from getting on the engine 3 and the like. Reference numeral 37 denotes a tapping device for cutting the stems and leaves of onions, which is made up of 2 to 3 sets of smooth rollers, spiral rollers, etc., and is installed in multiple sets in the horizontal direction. Configured to cut. 38 is a pair of left and right side plates, and 39 is a chute, which is provided between the lifting conveyor 34 and the tapping device 37.

As shown in FIGS. 4 and 5, the intermediate transmission device 4 includes a transmission case 43 formed by joining a pair of half cases 40 and 41 with bolts 42, an input shaft 8, a traveling transmission shaft 18, and an intermediate shaft 44. and a work transmission shaft 45 are incorporated. The input shaft 8 , the intermediate shaft 44 , and the work transmission shaft 45 are arranged parallel to each other in the front-rear direction with a predetermined interval in the vertical direction, and the input shaft 8 projects forward from the transmission case 43 to connect to the ball shaft 4 .
6 and 47, and a pulley 10 is provided at the protruding end thereof via an input clutch 48. The intermediate shaft 44 is rotatably supported within the transmission case 43 via ball bearings 49 and 50, and the work transmission shaft 45 is rotatably supported by ball bearings 51 and 52 so as to protrude back and forth from the transmission case 43. The front end of the work transmission shaft 45 is interlocked and connected to the driving parts of the excavation conveyor 31 and the lifting conveyor 34 via a universal joint 53, a connecting shaft 54, a bevel gear mechanism 55, and a winding transmission mechanism 56. , and an output clutch 57 at the rear end.
A pulley 58 is provided via. The pulley 58 is operatively connected to each roller of the tapping device 37 via a winding transmission mechanism 59. The clutches 48, 57 include rotary discs 60, 61 fixed to the shafts 8, 45, sliding discs 62, 63 fitted on the shafts 8, 45 so as to be slidable in the axial direction, and Fixed to the disks 62, 63 and rotating disks 60, 61
Pins 64 and 65 are slidably inserted in the axial direction.
and a clamping plate 6 supported by pins 64 and 65.
6, 67, clamping plates 66, 67, and rotating plates 60, 6
A plurality of clutch plates 68 and 69 are interposed between the clutch plates 68 and 69 and are engaged with the pulleys 10 and 58 or the pins 64 and 65, the clamping plates 66 and 67, and the rotating disk 6.
springs 70, 71 that bias the sliding discs 62, 63 in the axial direction so as to sandwich the clutch plates 68, 69 between the rotating cylinders 72, 73. When sliding, the sliding disks 62, 63 are pressed against springs 70, 71 and cut. The rotating cylinders 72 and 73 are the bearing holding members 7
The lever 7 is fitted onto the cylindrical shaft formed at the
6, 77, which are interlocked with the clutch levers 21, 22 via push-pull wires, etc., and when the clutch levers 21, 22 are operated, the rotating cylinders 72, 73 rotate, and are connected to the bearing press members 74, 75. It is configured to slide in the axial direction by cam mechanisms 78 and 79 formed therebetween. The traveling output shaft 18 is disposed in the lateral direction perpendicular to the intermediate shaft 44 and is rotatably supported via a ball bearing 81 by a bearing case 80 attached to the side wall of the split case 41. is interlockingly connected to the intermediate shaft 44 via bevel gears 82 and 83. 84 is a transmission means for switching the traveling system between high and low speeds, which includes gears 85 and 86 provided on the input shaft 8;
Gear part 8 that can be selectively engaged with 5 and 86
7 and 88, and a shift gear 89 which is slidably spline fitted to the intermediate shaft 44.
90 is a clutch means that connects the working part drive system when the speed change means 84 is set to a low speed;
The gear part 91 integrally formed with the work transmission shaft 4
When the gear portion 87 of the shift gear 89 is engaged with the gear 85, the gear portion 91 engages with the gear 92. A shift fork 93 that engages with the shift gear 89 is supported by a fork rod 94 and can be positioned in two high and low speed positions by a positioning mechanism 95, and a shift lever 96,
It can be operated by the speed change lever 20 via a lever shaft 97, a lever 98, etc.

Next, the effect will be explained. When the engine 3 is operated, its power is transmitted to the input shaft 8 of the intermediate transmission 4 via the wrap transmission mechanism 12 and the input clutch 48, and from this input shaft 8 to the transmission means 84 and the intermediate shaft 4.
4, bevel gears 82, 83, traveling transmission shaft 18,
It is transmitted to each crawler 2 via the winding transmission mechanism 17 and traveling transmission device 5, and travels as the crawler 2 rotates. When traveling on the road, the shift gear 89 of the transmission means 84 is at a high speed position as shown in FIG. 4, and the gear portion 88 is engaged with the gear 86, so the crawler 2 rotates at a high speed. On the other hand, when harvesting work in the field, the shift lever 20 is operated to slide the shift gear 89 to the low speed side (arrow a), and the gear portion 87 is shifted to the gear 85.
and switch to low-speed running. At this time, the gear portion 91 of the shift gear 89 meshes with the gear 92 and the clutch means 90 is connected, so that the power of the intermediate shaft 44 is decelerated through the gear portion 91 and the gear 92 and transmitted to the work transmission shaft 45. After that, it is transmitted from the front and rear of this work transmission shaft 45 to the excavation conveyor 30, lifting conveyor 34, and tapping device 37, and drives these. That is, the excavation conveyor 31 and the lifting conveyor 34 are driven from the front end of the work transmission shaft 45 via the universal joint 53, the connecting shaft 54, the bevel gear mechanism 55, and the winding transmission mechanism 56, and the rear end of the work transmission shaft 45 is driven. From the end, the tapping device 3 passes through the output clutch 57 and the winding transmission mechanism 59.
7 is driven. Therefore, there is a series of steps in which onions are dug up in the field using a digging device 30, picked up by a digging conveyor 31, lifted by a lifting conveyor 34 and sent to a tapping device 37, and the tapping device 37 cuts off the stems and leaves. Harvest work can be done.

During operation, the operator stands on step 24,
When seated in the driver's seat 26, the control section 19 is located on the side of the driver's seat 26.
Operate the various levers. Then, when the clutch lever 21 is operated, the input clutch 48 is engaged, and when it is disengaged, the input to the intermediate transmission 4 is cut off, so both the travel and work systems are stopped, and when the clutch lever 22 is operated, the input clutch 48 is disconnected. When the clutch 57 is disengaged, the tapping device 37 is stopped. The excavation conveyor 30 and the lifting conveyor 34 are operated by tension clutches interposed in their winding transmission mechanisms 56 and the like.

Mechanically, the engine 3 and intermediate transmission 4 are installed side by side in the horizontal direction with the crankshaft 6, input shaft 8, etc. facing in the front-rear direction, so the width required for installing these is reduced, and the vehicle body 1 can be spaced accordingly. The width of the controller can be reduced, and the space for the control section 19 can be increased. Moreover, in addition to directly interlocking the crankshaft 6 of the engine 3 and the input shaft 8 of the intermediate transmission device 4 through the wrap-around transmission mechanism 12, the intermediate transmission device 4
Since the work transmission shaft 45 is also located in the front-rear direction, the mechanism of the transmission system itself is simple, and maintenance and inspection can be easily performed. By arranging the control section 19 together with the engine 3 and the intermediate transmission 4 in a horizontal line, and by making the driver's seat 26 protrude outward from the vehicle body 1, the upper part of the engine 3, the intermediate transmission 4, and the control section 19 is arranged. It can be used effectively, and even if the lifting conveyor 34 is located in the entire area above these installation parts, the operation can be performed without any problem. Moreover, since the driver's seat 26 protrudes laterally, the forward visibility is good and driving is easy.

In this invention, the engine, intermediate transmission, and control section are arranged laterally, and the driver's seat protrudes laterally outward from the vehicle body, so the space above the engine, intermediate transmission, and control section is effectively utilized. available,
For example, in the case of an onion harvester, it is possible to provide a lifting conveyor that spans the entire width of the upper region, and therefore, the width of the vehicle body can be used effectively, so that the machine can be made smaller. Additionally, the driver's seat protrudes to the side, making it easy to drive with good visibility ahead. Furthermore, according to the present invention, the engine is placed at one end in the lateral direction of the vehicle body so that its crankshaft is oriented in the front-rear direction, so the area of the engine that is squeezed in the lateral direction is small, and the intermediate transmission device and the control section can be placed laterally. It becomes easy to arrange them in parallel in the direction. Furthermore, since the driver's seat is disposed on the side opposite to the engine so as to protrude laterally outward from the vehicle body, engine noise and vibrations are less likely to be transmitted, resulting in a better driving environment.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is an overall side view, Fig. 2 is a front view of the main parts, Fig. 3 is a schematic plan view, Fig. 4 is an enlarged sectional view of the main parts, and Fig. 5 The figure is number 4
It is a - arrow direction view of a figure. 1...Vehicle body, 2...Crawler, 3...Engine, 4...Intermediate transmission device, 5...Traveling transmission device,
6... Crankshaft, 8... Input shaft, 19... Control section, 26... Driver's seat, 34... Lifting conveyor, 3
7... Tapping device.

Claims (1)

[Scope of utility model registration request] A self-propelled working machine in which a vehicle body 1 is provided with an engine 3 and an intermediate transmission 4, and power from the engine 3 is transmitted to a travel transmission 5 via the intermediate transmission 4. The intermediate transmission device 4 and the control section 19 of the transmission device 4 are arranged side by side in this order, and the control section 1
A driver's seat 2 is disposed on the side opposite to the engine 3 of No. 9 and protrudes laterally outward from the vehicle body 1.
6, and the engine 3 is disposed at one end in the lateral direction of the vehicle body 1 so that the crankshaft 6 thereof extends in the longitudinal direction.