JP2009284806A - Traveling controller for combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance the safety of cleaning operation of traveling crawler in a traveling controller of a combine harvester. <P>SOLUTION: The traveling controller for a combine harvester has a constitution that an engine (3) is mounted on the upper side of a traveling chassis (2), a traveling apparatus (4) equipped with the traveling crawler (5) to be driven by a hydraulic continuously variable gear (9) is arranged under the traveling chassis (2), an operation apparatus (7) equipped with a washing setting means (6) for setting a washing mode is arranged at the front upper side of the traveling chassis (2), and a controller (8) that automatically stops the engine (3) when a working oil pressure in the hydraulic continuously variable gear (9) rises to a pressure higher than a pressure caused by an ordinary traveling load is arranged. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a traveling control device for a combine.

As shown in Patent Document 1, a crawler traveling device is provided on both the left and right sides, a drive mechanism for operating the crawler traveling devices with respect to the airframe is provided, and the lower side of each traveling device support frame portion is provided with each crawler. This is a combine provided with a stand abutting surface for providing a stand for supporting the machine body and operating it when the traveling device is operated to the lowest lowered position or a position close thereto by a drive mechanism.
Japanese Utility Model Publication No. 7-18266

  The current combine must be removed when a large amount of mud etc. adheres to the left and right traveling crawlers stretched on the crawler traveling device. At this time, each traveling crawler of the crawler traveling device is removed from the fuselage. The driving crawler of each crawler traveling device is operated to the lowermost position or a position close to it by the driving mechanism on the lower side of the traveling device support frame portion by a driving mechanism provided for raising and lowering operation. In order to provide a stand for the machine body and to act, a mounting surface for each stand is provided. As a result, it is difficult to mount each stand, or the stand is a special part, which increases costs. However, the present invention is intended to solve these problems. It is what.

In order to solve the above problems, the present invention takes the following technical means.
In other words, a traveling device having an engine (3) mounted on the upper side of the traveling chassis (2) and a traveling crawler (5) driven by a hydraulic continuously variable transmission (9) on the lower side of the traveling chassis (2). (4) is provided, and an operating device (7) provided with a car wash setting means (6) for setting a car wash mode is provided on the front upper side of the traveling chassis (2), and the operation in the hydraulic continuously variable transmission (9) When the hydraulic pressure rises to a pressure higher than the pressure generated by a normal traveling load, a combined traveling control device is provided, which is provided with a control device (8) for automatically stopping the engine (3).

  According to the present invention, for example, when the traveling device 4 is levitated in a non-grounded state by a stand and the traveling crawler 5 is driven by the car wash setting means 6 and is washed, the stand is removed and the traveling crawler 5 is grounded. If the operating oil pressure of the hydraulic continuously variable transmission 9 due to this grounding rises to a pressure higher than the pressure generated by the normal traveling load, the engine 3 is automatically stopped and the combine suddenly starts. Can be prevented and safety can be improved.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
An engine 3 is placed on the upper side surface of the traveling chassis 2 of the combine 1, and a traveling device 4 in which traveling crawlers 5 are stretched on both the left and right sides of the traveling chassis 2, and an upper front side of the traveling chassis 2 are This is a configuration in which a car wash setting device 6 for setting a car wash mode, a traveling device 7, a hydraulic continuously variable transmission 9 and the like are mounted.

  Further, when the hydraulic continuously variable transmission 9 is raised by a normal traveling load, the engine 3 is automatically stopped and controlled. In the operating device 7, a control device 8 is provided. The traveling speed control of the combine 1 and the automatic stop control are performed.

  As shown in FIG. 1 and FIG. 2, a traveling device 4 in which a pair of left and right traveling crawlers 5 traveling on the soil surface is stretched is disposed below the traveling chassis 2 of the combine 1. The threshing device 10, the engine 3 and the like are placed on the upper side surface of 2. The napped cereals are harvested by the reaping device 13 at the front part of the traveling chassis 2 and transferred to the upper rear part, and the threshing is carried out while being nipped and transferred by the feed chain 11a of the threshing device 10 and the clamping pod 11b. The grain that has been threshed and sorted is supplied into the grain storage tank 12 disposed on the right side of the threshing apparatus 10 and temporarily stored.

  As shown in FIGS. 1 to 3, the engine 3 is mounted on the upper side surface of the traveling chassis 2 of the combine 1, and the traveling devices 4 are disposed on the left and right sides below the traveling chassis 2. The traveling crawler 5 is stretched. An operating device 7 provided with a car wash setting means 6 for setting a car wash mode or the like is provided at the front upper part of the traveling chassis 2, and a hydraulic continuously variable transmission 9 or the like is provided on the upper side surface of the traveling chassis 2. Yes. The configuration is such that the traveling device 4, which is each part of the combine, is rotationally driven by the rotational driving of the engine 3.

  When the hydraulic continuously variable transmission 9 rises due to pressure fluctuation due to a normal running load, automatic stop control or the like is performed by a control device 8 provided with the engine 3 built in the operation device 7.

  As described above, the traveling device 4 in which the traveling crawlers are stretched by the engine 3 placed on the upper side surface of the traveling vehicle base 2 of the combine 1 and provided on the left and right sides of the lower side of the traveling vehicle base 2, and the traveling vehicle base 2. A car wash selection device 6 for setting a car wash mode or the like at the front upper portion of the vehicle, a hydraulic continuously variable transmission 9, a reaping device 13 provided at the front portion of the traveling chassis 2 for cutting cereals and transferring them to the upper rear portion; The threshing device 10 or the like that receives the harvested cereal mash that is transferred to the rear upper part by the reaping device 13 and threshs is placed on the upper surface of the traveling chassis 2. When the stand 2a provided on the traveling chassis 2 is detached, the traveling crawler 5 is grounded, which is dangerous because the airframe 1a is moved. The pressure increase of the continuously variable transmission 9 is determined. By the engine 3 control device 8, by being automatic stop control, and it is possible to prevent the risk, a secure configuration.

  Also, when the combine 1 is in the car wash mode, the pressure of the hydraulic continuously variable transmission 9 increases more than the pressure fluctuation caused by the normal running load that is the set pressure, so that the engine 3 is automatically stopped by the control device 8. It is the structure to control.

  By the above, if the stand 2a is detached and the traveling crawler 5 is grounded, the airframe 1a is dangerous. The engine 3 is configured to automatically stop and detect an increase in pressure of the hydraulic continuously variable transmission 9 due to this ground contact.

  As shown in FIGS. 2 and 3, the traveling vehicle base 2 is provided with a plurality of “ON”-“OFF” type stand storage sensors 2b for detecting the storage state of the stand 2a. When the cam 2c is turned OFF by 2b and the stand 2a does not stand up, the car wash mode is not entered.

As a result, erroneous operation during normal work is eliminated. (During normal work, the setting will not exceed the upper limit of the vehicle height.)
When the pressure of the hydraulic continuously variable transmission 9 detects that the pressure sensor 9a provided in the hydraulic continuously variable transmission 9 has increased from the set pressure, the main transmission lever 7a provided in the operating device 7 is automatically In this configuration, the movement is controlled to the neutral position.

  In the unlikely event that the stand 2a provided on the steering wheel stand 2 is removed and the traveling crawler 5 of the traveling device 4 is grounded, the airframe 1a is dangerous to move. 9 is detected and determined by the pressure sensor 9a, the danger can be prevented by setting the main transmission lever 8a to the neutral position.

  When one of the plurality of stands 2a provided on the traveling chassis 2 is detached, the engine 3 is connected to the operation device 7 by detection of each stand storage sensor 2b provided on each stand 2a. The automatic stop control is performed by the control device 7b provided in FIG.

As described above, the engine 3 is stopped and detected safely by detecting the fall of each stand 2a by each stand storage sensor 2b provided in each stand 2a.
As shown in FIGS. 4 to 9, on the upper side of the traveling chassis 2, a crawler vertical cylinder 20 is provided in an upper fixture 20 a, and a lot having a predetermined length in the front-rear direction is provided at the front end of the crawler vertical cylinder 20. 20b is provided. A support plate 2d is provided on the lower side of the front portion of the traveling chassis 2, and a front upper crawler roller 5a is pivotally supported on the lower portion of the support plate 2d, and a crawler is disposed on the lower portion of the traveling chassis 2. A support tool 21 is provided, and a front lower crawler roller 5b and a rear lower crawler roller 5c are provided at the front and rear portions of the crawler support tool 21, and between the crawler roller 5b and the rear lower crawler roller 5c. Is provided with a plurality of auxiliary crawler rollers 5d.

  A traveling crawler 5 is stretched between the front upper crawler roller 5a, the front lower crawler roller 5b, the rear lower crawler 5c, and the auxiliary crawler rollers 5d provided on the left and right sides of the traveling chassis 2. It is a configuration.

  The front end portion and the rear portion of the lot 20b provided at the front portion of the crawler upper and lower cylinders 20 on the upper side of the traveling chassis 2 are respectively provided with front and rear side portions on the upper side surface of the crawler support 21. 21a, a substantially central portion of each of the U-shaped arms 22 is rotatably attached to each receiving plate 2e provided on the front and rear portions of the lower side surface of the traveling chassis 2 with each mounting pin 22a. Provided.

  By the expansion and contraction operation of each of the crawler upper and lower cylinders 20, the respective holders 21 a and the respective crawler support tools 21 are moved up and down by the respective lots 20 b and the respective arms 22 provided in the respective crawler upper and lower cylinders 20. The distance from the lower surface portion of the traveling chassis 2 to the lower surface portion of each traveling crawler 5 is controlled to change, and the overall height of the airframe 1a changes.

  As described above, since the riding angle formed by the front upper crawler roller 5a and the front lower crawler roller 5b becomes tight, the vehicle height cannot be raised more than the setting. However, when the machine body 1a is raised and mud dropped, there is no problem, so the gist of the present invention can be adopted, and the amount of the machine body 1a raised by using the stand can be increased to facilitate the mud dropping work.

  As shown in FIG. 6, the position of each stand 2a is the front and rear machine body center (A) position is substantially the center between the front and rear stands 2a. It is the structure provided in position (L), (L). In addition, as shown in FIG. 7, the left and right stands 2a provided on both sides of the machine body 1a have the left and right machine body centers of gravity (B) at substantially the center positions (M) and (M) between the stands 2a. It is the structure provided in the position.

Due to the above, when the airframe 1a is lifted up, the load applied to each stand 2a is equalized and safe.
A vehicle height upper limit switching dial 7b for switching the upper limit of the vehicle height rise of the traveling chassis 2 of the combine 1 having the vehicle body horizontal mechanism between the time of working and the time of car washing, as shown in FIG. The operation of the vehicle height upper limit switching dial 7b is input into the control device 8 built in the operation device 7, and this input changes the vehicle height rising position of the traveling vehicle base 2 to the working state. The automatic movement control is performed to the position or the car wash state position.

As described above, the work state mode and the car wash state mode can be easily selected, which is convenient.
As shown in FIG. 11, a restriction guide portion 7d is provided in the lever guide groove 7c of the main transmission lever 7a of the operating device 7, and an arrow mark indicating a car wash range is provided on the right side of the lever guide groove 7c. 7e and a car wash range mark 7f are affixed to the right side of the arrow mark 7e.

If the rotational speed of each traveling crawler 5 becomes faster than the set speed during car washing, the car washing operation is dangerous, but this can be prevented by the above configuration.
As shown in FIG. 1 and FIG. 2, a narrow guide 14 and a weeding body 15 for separating the napped cereals, each pulling device 16 for raising the napped cereals, Each squeezing device 18 of the stalk scraping and transporting device 17 for scraping the sown cereal, a cutting blade device 19 for cutting the squeezed stalk, A reaping device 13 including a root / ear tip transfer device 17a / 17b of a cereal scraping transfer device 17 to be delivered to a feed chain 11a of the threshing device 10 and a holding rod 11b is provided. The reaping device 13 is raised and lowered with respect to the soil surface by a hydraulic cylinder.

  A support pipe rod 13c provided at the upper end portion of the support rod 13b inclined from the lower front portion to the rear upper portion of the reaping device 13 is rotatably supported by a support device 13d provided on the upper side surface of the traveling chassis 2. When the telescopic cylinder 13a is operated, the reaping device 13 is rotated up and down together with the support rod 13b.

  In the culm transfer path formed by the culm picking and transferring device 17 of the reaping device 13, the presence or absence of supply of the culm to the threshing device 10 is made by contacting the culm that is harvested and transferred. A cereal sensor 13e for detection is provided.

  As shown in FIG. 1 and FIG. 2, the control unit 7 for starting and stopping the combine 1 and adjusting each part and the like, and a cockpit 8 a are provided at the front part on the grain storage tank 12 side. The engine 3 is placed below the cockpit 8a.

  A potentiometer type vehicle speed sensor 8d for detecting the traveling vehicle speed is provided in the transmission path of the transmission mechanism 8c in the traveling mission case 8b mounted on the front end of the traveling chassis 2 based on the output. ing.

  As shown in FIG. 1 and FIG. 2, a discharge support with a vertical transfer spiral 12 b installed on the rear side of the grain storage tank 12 for discharging the grains stored in the grain storage tank 12 to the outside of the machine. A cylinder 12a is pivotably mounted in a substantially vertical posture, and a discharge spiral 12d that discharges the grain to the outside of the combiner 1 with its entire length extending in the longitudinal direction of the combine 1 is extendable at the upper end of the discharge support cylinder 12a. The discharge auger 12c is arranged in the front-rear direction so as to be extendable, turnable up and down, and turnable left and right.

Combine right side side view Combine left side side view Rear enlarged side view of stand mounting part Side view of the traveling device during grain harvesting Front view of the travel device when harvesting cereals Side view at the time of cereal harvesting when the stand is mounted on the traveling device Front view at the time of cereal harvesting when the stand is mounted on the traveling device Side view of the stand of the traveling device Front view of the stand of the traveling device Top view of the vehicle height upper limit dial mounting part of the operating device Plan view of lever guide groove of operating device

Explanation of symbols

2 Traveling chassis 3 Engine 4 Traveling device 5 Traveling crawler 6 Car wash setting means 7 Operating device 8 Control device 9 Hydraulic continuously variable transmission

Claims (1)

  A traveling device (4) having an engine (3) mounted on the upper side of the traveling chassis (2) and a traveling crawler (5) driven by a hydraulic continuously variable transmission (9) on the lower side of the traveling chassis (2). ) And an operating device (7) having a car wash setting means (6) for setting a car wash mode is provided on the front upper side of the traveling chassis (2), and the hydraulic pressure in the hydraulic continuously variable transmission (9) is A travel control device for a combine, comprising a control device (8) for automatically stopping the engine (3) when the pressure rises to a pressure higher than a pressure caused by a normal travel load.

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