JPH0610086U - Rubber crawler traveling device - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a rubber crawler running device equipped with a crop harvester for harvesting root vegetables such as sweet potato, potato, onion, beet, taro, konjac potato, ginseng, and lacquer root. To do. [Structure] A rubber crawler traveling device in which a rubber crawler is wound between a drive roller and an induction roller whose distance between the drive roller and the drive roller can be adjusted by a distance adjusting mechanism. A protective member was installed to prevent stones from getting caught on the guide wheel side, adhesion of soil, and derailment of the rubber crawler.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a rubber crawler running device equipped in an agricultural product harvester for harvesting root vegetables such as sweet potato, potato, onion, beet, taro, konjac potato, ginseng root, and lacquer root.

[0002]

[Prior art]

 Conventionally, as a crop harvester that harvests root vegetables such as sweet potato, potato, onion, beet, taro, konjac potato, ginseng, and lacquer, left and right rubber crawlers that enable super-trust rotation. It has a traveling device, which digs and conveys agricultural products vegetated in the field, and a sorting conveyor for sorting, and a worker carrying out sorting work on the side of the sorting conveyor. The applicant has proposed a self-propelled type in which a passenger boarding device is provided and a harvesting device is provided behind the sorting conveyor.

[0003]

[Problems to be solved by the device]

 By the way, the left and right rubber crawlers are wound between a drive roller and an induction roller whose distance between the drive roller and the drive roller can be adjusted by an interval adjusting mechanism, and run in a ridged field, Since the vehicle makes a turning turn, it is easy for stones to be caught on the guide wheel side and for dirt to adhere, and for some cases the rubber crawler may come off. For this reason, if a protective tool is installed on the frame near the guide wheels to prevent stone trapping, soil adhesion, and wheel crawling of the rubber crawler, it is possible to protect the guide wheels when the guide wheels are moved by the gap adjustment mechanism. There were problems that the function of the protective gear could not be fulfilled due to the change in the distance between the tool and the guide wheel, and that the protective gear had to be removed when moving the guide wheel. The present invention is intended to solve the above problems.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a rubber crawler traveling device in which a rubber crawler is wound between a drive roller and an induction roller whose distance between the drive roller and the drive roller can be adjusted by a distance adjusting mechanism. In the above, the interval adjustment mechanism is equipped with a protective member for preventing stones from getting caught on the guide wheel side, adhesion of soil, and wheel crawling of the rubber crawler.

[0005]

[Action]

 In the rubber crawler traveling device of the present invention having the above-described structure, the interval adjusting mechanism is provided with the protection member for preventing the trapping of stones on the guide wheel side, the adhesion of soil, the derailment of the rubber crawler, etc. Therefore, if the guide roller is moved by the gap adjusting mechanism to adjust the gap with the drive roller, the protective member also moves with the guide roller at the same time and the gap does not change, and the function of the protective member may change. Absent.

[0006]

【Example】

 Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In FIG. 3 to FIG. 6, reference numeral 1 is a potato harvester. This potato harvester 1 is equipped with rubber crawler traveling devices 3 and 3 which have a pair of left and right bodies and are capable of super-spinning. ing. An engine 4 is mounted on the machine body 2 on the front side of the rubber crawler traveling devices 3 and 3, and a generator driven by the engine, a hydraulic pump and the like (not shown) are mounted in the vicinity thereof. A transmission 5 is provided at a lower position on the front side of the machine body 2 between the rubber crawler traveling devices 3 and 3. In addition, from the lower front of the machine body 2 through the transmission 5 to the upper center of the machine body, the agricultural products vegetated in the field are excavated and conveyed backward, and the excavation conveyor device 6 is inclined so that the tip side descends. This conveyor device 6 has a front end portion pivotally supporting a base end portion so as to be vertically movable. A control unit 7 is provided on the other side of the machine body 2 opposite to the engine 4.

As shown in FIGS. 4, 1 and 2, the rubber crawler traveling device 3 has a rubber crawler 32 having an inner protrusion 32 a wound between a drive roller 3 a and a guide roller 31. ing. The guide wheel 31 is supported by a gap adjusting frame 34, which is inserted in the crawler support frame 33 so as to be movable back and forth, via a roll wheel attachment member 35, and the gap between the guide roller 31 and the drive roller 3a is within the adjustment gap S. It can be adjusted with. Further, a protective member 36 is attached to the rolling wheel attachment member 35 to prevent stones from being caught on the induction rolling wheel 31 side, adhesion of soil, and derailment of the rubber crawler 32. The protection member 36 is composed of a plate-shaped vertical member 6a and a connecting member 36b, and a round bar-shaped derailment prevention member 36c, and a part of the vertical member 6a is fixed to the gap adjusting frame 34. Numeral 37 is an outer wheel, which is provided with four wheels.

In the excavation conveyor device 6, excavation blades 9 are attached to the tip ends of the left and right side frames (frames) 8, the link rods are provided between the side frames 8 and 8, and slats are provided at predetermined intervals. The digging conveyor 10 is wound, and the inclined lower end side is vertically rotatable around the rotating upper portion 10a of the inclined upper end, and the hydraulic cylinder 11 provided between the machine body 2 and the side frames 8 and 8 is expanded and contracted. The vertical movement is adjusted by the operation, that is, the digging depth is adjusted, and the digging conveyor 10 and the side frames 8 and 8 can be folded toward the fuselage side from the middle. The hydraulic cylinder 12 is used for folding and unfolding operations. The moving speed of the digging conveyor 10 can be adjusted steplessly or stepwise. Further, the brackets 13, 13 projecting forward from the left and right side frames 8, 8 are provided with a ridge tracking device 14 that follows the movement of the machine body along the length direction of the ridge to be harvested.

The ridge-following device 14 is provided with a pair of wheels 15 and 15 that are in contact with both inclined shoulders of the ridge to be harvested so as to face each other, and the both wheels 15 are vertically adjusted with respect to the digging conveyor device 6. It is supported so that it can be adjusted up and down by the slide mechanism, and can be adjusted in the left and right direction by the slide mechanism 17, 17. The pair of wheels 15 and 15 have a camber angle. On the side frame 8 of the excavation conveyor device 6, a power connection / disconnection mechanism (not shown) is provided near the folding portion. On the side of the digging conveyor device 6, an auxiliary worker boarding device 18 on which an auxiliary worker who carries out pretreatment of the harvested and conveyed crop is boarded is arranged. The auxiliary worker boarding device 18 is composed of a step 18a, a vertically adjustable and rotatable seat 18b, and a handrail 18c, and can be removed when not needed.

A sorting conveyor device 19 for carrying out sorting work while placing and transferring harvested products is arranged at a rear position of the machine body behind the digging conveyor device 6. The operator boarding device 20 on which the operator who carries out the operation of the control unit 7 and the sorting work is mounted on one side in the transfer direction of the sorting conveyor device 19 and the sorting work which is carried on the other side by the worker who carries out the sorting work. A passenger boarding device 21 is provided. A clutch lever 22 that can be operated in cooperation with the traveling clutch lever provided in the control section 7 and the clutch lever of the digging conveyor 10 is provided near the sorting operator boarding device 21. The both boarding devices 20 and 21 are composed of steps 20a and 21a and seats 20b and 21b which are vertically adjustable and rotatable. Further, handrails 23, 23 also serving as strength members of the machine body 2 are provided at the front positions of the two boarding devices 20, 21 facing the selection conveyor device 19.

The sorting conveyor device 19 can be easily replaced with a plurality of other types having different sorting modes, if necessary. In this embodiment, the flat belt type is used, but in addition to this, a rod (bar) conveyor type, a rope conveyor type in which a plurality of short horizontal bars are fixed to every other rope at predetermined intervals, and a large number of tees are used. It is possible to attach or detach the taper roller type in which the super rollers are arranged side by side in the width direction with the front side thick and each roller is rotated. In addition to these, it is possible to replace with a sorting conveyor having a different sorting mode. A space 24 is formed below the sorting conveyor device 19. Although not shown, a sieve line is provided below the terminal end of the sorting conveyor device 19.

At the rear end of the machine body behind the sorting conveyor device 19, a harvested product mounting device 25 for mounting a harvested product is arranged. The harvesting device 25 is a loading platform that can mount a number of containers that contain harvested products, and can be adjusted up and down by changing the front end of the machine. It can be moved to the use state that it is extended to the rear of the fuselage and the storage state that it stands upright on the fuselage side. Although not shown, an overhanging portion may be provided at steps 20a and 21a of both the boarding devices 20 and 21 so that a container for containing harvested products can be placed.

A straddle frame 26 is provided so as to extend above the handrails 23, 23 so as to straddle over the sorting conveyor device 19 and the excavation conveyor 10, and a light 27 that illuminates the front and rear directions of the machine body is attached to the straddle frame 26. Has been. Further, a parasol 30 is supported by a tip of a support arm 28, which has its base end fixed to the straddle frame 26 and extends rearward, via a parasol attachment seat 29 so as to be tiltable and fixable in all front, rear, left and right directions. The parasol 30 protects the workers sitting on the worker boarding device 20 and the sorting worker boarding device 21 from the shade and rain, and a fan or a radio may be attached to the pillar of the parasol 30.

The transmission 5 that receives power from the engine 4 to change gears is equipped with a hydraulic continuously variable transmission (HST) (not shown) that continuously changes gears. The speed is changed, and the power transmission is turned on and off via the side clutch and the differential device so that the rubber crawler running devices 3 and 3 can run continuously and steplessly. Further, a brake device is provided in association with the differential device. Then, when the steering lever is operated greatly, the side clutch, the differential mechanism, and the brake are operated to make the aircraft turn super-superiorly.

Further, as described above, the excavation conveyor 10 is capable of adjusting the moving speed of the rubber crawler traveling device 3, 3 in a stepless or stepwise manner. By doing so, the mining work speed can be freely set. When the potato harvester 1 is not used, the digging conveyor device 6 rotates the digging conveyor device 6 as a whole around the rotating portion 10a, or, as shown in FIG. 5, folds the tip side portion. Fold it up and rotate it to the side of the machine to store it, shorten the front and back of the machine to load it on a cargo bed of a light truck for transportation, or store it in a warehouse or the like, and make it possible to rotate the headland in a small area. ing.

Next, the operation of the potato harvester 1 configured as described above will be described. The potato harvester 1 harvests the wheels 15 and 15 of the ridge-following device 14 when harvesting root vegetables such as sweet potato, potato, onion, beet, taro, konjac potato, ginseng, and rakkyo from the field. The target ridge is rolled to both shoulders, and the digging blade 9 of the digging conveyor device 6 is vertically moved by the hydraulic cylinder 11 to adjust the digging depth, and the forward movement of the machine digs the harvested product. It is excavated by the blade 9, and the excavation conveyor 10 hoists and conveys it together with the soil diagonally above the machine body. During this transportation, soil falls from between the link rods, and a worker sitting on the auxiliary worker boarding device 18 performs a pretreatment for removing vines, foliage, large soil blocks, stones, etc. other than root vegetables.

Only the root vegetables in the harvest discharged from the transport end of the digging conveyor 10 onto the sorting conveyor device 19 are handrailed by a worker sitting on the operator boarding device 20 and the selecting operator boarding device 21. , 23, and picked up and stored in a container (container) mounted on the harvesting device 25. The soil and foreign matters remaining on the sorting conveyor device 19 are dropped from the end of the transportation to the field through the space 24. The parasol 30 prevents the workers sitting on the worker boarding device 20 and the selection worker boarding device 21 from being directly exposed to the sunlight or rain.

Since the rubber crawler traveling devices 3 and 3 are provided with the protective member 36, stones are not caught in the guide roller 31 side and soil is not attached thereto, and the rubber crawler 32 is prevented from coming off. Be stopped. The potato harvester 1 is provided with an engine 4, a transmission 5, and an operating section (operating system) 7 on the front side thereof, and a worker boarding device 20, a sorting worker boarding device 21, and a harvested product mounting device 25 on the rear side thereof. By arranging, the front-rear, left-right balance of the machine body 2 is improved, workability and work accuracy are improved, and the runnability, turning performance, and stability of the machine body 2 are improved. Further, the crawler 3, 3 traveling device is configured to be capable of super-complex turning, and the transmission 5 is arranged in the central portion on the front side of the machine body. You can also turn in a well-balanced direction. Therefore, the crawlers 3 and 3 do not greatly scrape the soil in the field.

In front of the digging conveyor device 6, there is provided a ridge follower device 14 that follows the movement of the machine body along the length direction of the ridge to be harvested, and a pair of ridges to be rolled to the inclined shoulders of the ridge to be harvested. Since the wheels 15 are provided so as to face each other so as to be vertically adjustable and horizontally adjustable with respect to the digging conveyor device 6, both wheels 15 accurately follow the ridge to be harvested and automatically operate the machine. Then, the digging conveyor device 6 automatically digs and conveys. Therefore, the worker sitting on the worker boarding device 20 can spend most of the time on the sorting work except for the operation of the machine body steering operation at the ridge of the ridge to be harvested. When the headland is swung at the end of the field, the excavation conveyor device 6 is folded by the hydraulic cylinder 12 so that the rubber crawler traveling devices 3 and 3 can swivel with a small turning radius as well as the super-spinning.

The potato harvesting machine 1 of the present invention is used not only for the potato harvesting work but also for the work of collecting the empty cans, empty bottles, wood chips, etc., which are left on the coast or sand dunes, for example. You can In that case, the ridge-following device 14 may be removed or it may be made to function as a device for adjusting the digging depth of the digging blade 9.

[0021]

[Effect of device]

 As described above, according to the rubber crawler traveling device of the present invention, the guide roller spacing adjustment mechanism that can adjust the gap between the drive roller and the drive roller is used to trap stones on the guide roller side and remove dirt. Since a protective member is attached to prevent adhesion and wheel crawling of the rubber crawler, if the guide roller is moved by the gap adjustment mechanism to adjust the gap with the drive roller, the protective member is also guided. There is no change in the distance between the protective member and the guide wheel when moving with the wheel, and the function of the protective member is constant, and a stable protective effect is obtained. Further, when the guide wheel is moved to adjust the distance from the drive wheel, it is not necessary to remove the protective member, the operation is simple, and the adjustment can be performed in a short time.

[Brief description of drawings]

FIG. 1 is a partial side view of a rubber crawler traveling device according to the present invention.

FIG. 2 is a front view of the same portion.

FIG. 3 is a plan view of the whole potato harvester according to the present invention.

FIG. 4 is a side view of the same.

FIG. 5 is a rear view of the same.

FIG. 6 is a perspective view of the same.

[Explanation of symbols]

1 potato harvester 2 machine body 3 rubber crawler traveling device 3a drive wheel 4 engine 5 transmission 6 digging conveyor device 7 control part 8 side frame (frame) 9 digging blade 10 digging conveyor 10a rotating part 11 digging conveyor Hydraulic cylinder for adjusting vertical movement of device 12 Hydraulic cylinder for folding of digging conveyor device 13 Bracket 14 Ridge tracking device 15 Wheel 16 Vertical adjustment mechanism 17 Slide mechanism 18 Auxiliary operator boarding device 18a Step 18b
Seat 19 Sorting conveyor device 20 Worker boarding device 20a Step 20b Seat 21 Sorting worker boarding device 21a Step 21b
Seat 22 Clutch lever 23 Handrail that also serves as strength of the aircraft 24 Space 25 Harvesting equipment 26 Crossing frame 27 Light 28 Support arm 29 Parasol mounting seat 30 Parasol 31 Induction wheel 32 Rubber crawler 32a Inner protrusion 33 Crawler support frame 34 Spacing Adjustment frame 35 Rolling wheel attachment member 36 Protective member 36a Vertical member 36b Connecting member
36c Wheel slip prevention member 37 Outer wheel

Claims (1)

[Scope of utility model registration request] 1. A rubber crawler traveling device in which a rubber crawler is wound between a drive roller and an induction roller whose distance between the drive roller and the drive roller can be adjusted by a distance adjusting mechanism. A rubber crawler traveling device equipped with a protective member for preventing stones from being caught on the guide wheel side, adhesion of soil, and derailment of the rubber crawler.