JP6640585B2 - Transplant machine - Google Patents

Description

  The present invention relates to a transplanter provided with a lubrication device for lubricating a lubricating point of a planting work machine.

  2. Description of the Related Art There is known a transplanting machine including a greasing device for greasing a lubricating point of a planting work machine. For example, Patent Literature 1 includes a storage tank that stores a lubricant, an oil pump that sends the lubricant from the storage tank to a plurality of lubricating points in the planting machine, and an operating tool for the oil pump. Discloses a lubrication device that supplies a lubricant to a plurality of lubrication points in accordance with the operation of (1).

JP-A-2000-14217

  However, in the greasing device disclosed in Patent Literature 1, when lubrication is supplied to a plurality of lubrication points, it is necessary to swing the operation tool of the lubrication pump. In addition, there is a risk that the operator forgets the lubrication operation and wears the lubricating portion, or the lubricating oil is wastefully consumed by the excessive lubrication operation.

SUMMARY OF THE INVENTION The present invention has been made to solve these problems in view of the above situation, and the invention of claim 1 is directed to a traveling machine and a plant connected to the traveling machine so as to be able to move up and down. A transplanting machine, and a greasing device for lubricating a lubricating point of the planting working machine, wherein the planting working machine is attached to a main body of the planting working machine via a slide support. A seedling table slidably provided, a planting mechanism for scraping the seedlings from the seedling table and planting them in a field, and a lateral feed mechanism for sliding the seedling table to the left and right while the planting mechanism is driving planting The transverse feed mechanism comprises: a transverse feed drive shaft that slides the seedling mounting table to the left and right by rotational drive; and a transverse feed shaft rotation detecting unit that detects rotation of the transverse feed drive shaft. The greasing device pressurizes the stored lubricant with a spring. A grease cup, a hose for guiding the lubricant flowing out of the grease cup by pressurization to the slide support portion, which is a lubricating point, and a hose interposed in a lubricant flow path from the grease cup to the slide support portion. A control unit for controlling the opening and closing of the electromagnetic on-off valve when the transverse feed shaft rotation detecting means detects the rotation state of the transverse feed shaft. An on-off valve is opened, and the electromagnetic on-off valve is closed when the transverse feed mechanism detects a stopped state .
According to a second aspect of the present invention, the control unit is in a driving state when the rotation detected by the traverse shaft rotation detecting means is equal to or more than a predetermined rotation, and is in a stopped state when the rotation is less than the predetermined rotation. a of claim 1 transplanter, characterized in that to determine that.

According to the first aspect of the present invention, when the solenoid on-off valve is opened, the lubricant in the grease cup is continuously supplied to the lubricating portion by pressurization by an appropriate amount, so that the lubricating portion can be lubricated without excess or shortage. . In addition, since the electromagnetic on-off valve is opened when the traverse mechanism is in the driving state and closed when the traverse mechanism is in the stopped state, it is possible to prevent unnecessary supply of lubricant while the traverse mechanism is stopped, and to prevent lubrication. The consumption of the agent is reduced. In addition, the opening and closing of the electromagnetic on-off valve can be controlled based on the detection state of the traverse shaft rotation detecting means for detecting the rotation of the traverse drive shaft.

It is an overall plan view of a riding type rice transplanter. It is a transmission circuit diagram showing a power transmission path of a riding type rice transplanter. It is a side view which shows a hydraulic cam. It is a principal part front view of the operation part which shows a working machine operation lever. It is a rear view of the planting work machine which shows a greasing apparatus. FIG. 4 is a block diagram illustrating input and output of a control unit.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a traveling machine of a riding type rice transplanter (transplanting machine). A planting work machine 3 is connected to a rear portion of the traveling machine 1 via a lifting link mechanism 2 so as to be able to move up and down. . A lift cylinder (not shown) is interposed between the traveling machine body 1 and the elevating link mechanism 2, and the planting work machine 3 moves up and down in accordance with the hydraulic expansion and contraction operation of the lift cylinder. I have.

  As shown in FIGS. 1 and 2, the traveling body 1 also serves as an engine mounting section 6 on which an engine 5 is mounted, a transmission case 7 for shifting engine power, an operation section 8 on which an operator gets on, steering wheels, and driving wheels. This is a riding type four-wheeled vehicle including a front wheel 9, a rear wheel 10 as a driving wheel, and the like, and an operation unit 8 is provided with a driver seat 11 and a steering wheel 12.

  As shown in FIG. 2, the power of the engine 5 is input to a main transmission mechanism 14 composed of an HST (hydrostatic continuously variable transmission) via a belt tension type clutch mechanism 13. The engine power input to the main transmission mechanism 14 is continuously variable-shifted in the main transmission mechanism 14 and is input to the transmission case 7.

  In the transmission case 7, transmission shafts such as an input shaft 15, a planting transmission shaft 16, and a traveling transmission shaft 17 are provided. The power input from the main transmission mechanism 14 to the input shaft 15 is transmitted to the planting transmission shaft 16 via the inter-stock transmission mechanism 19, and the planting transmission shaft 16 is transmitted via the torque limiter 20 and the planting clutch 21. To the planting PTO shaft 22. The power taken out from the planting PTO shaft 22 is transmitted to the planting work machine 3 via a transmission mechanism outside the transmission case 7.

  The power input from the main transmission mechanism 14 to the input shaft 15 is transmitted to the traveling transmission shaft 17 via the auxiliary transmission mechanism 23. The power transmitted to the traveling transmission shaft 17 is transmitted to the left and right front wheel drive shafts 25L and 25R via the front wheel differential mechanism 24 and transmitted to the traveling PTO shaft 26. The power taken from the traveling PTO shaft 26 is transmitted to a rear axle case (not shown) via a transmission mechanism outside the transmission case 7.

  The rear axle case includes left and right rear wheel power transmission paths for transmitting power to the left and right rear wheels 10, and left and right side clutches 28L and 28R interposed in the respective rear wheel power transmission paths. By turning off the side clutches 28L and 28R inside the turning, small turning can be performed.

  As shown in FIG. 3, the traveling body 1 is provided with a hydraulic valve 31 for a lift cylinder and a hydraulic cam 31 connected to the planting clutch 21. The hydraulic cam 31 has four positions of “elevating”, “fixed”, “automatic elevating (lowering)”, and “planting”. The positions are switched by the hydraulic cam motor 32 and the hydraulic cam potentiometer 33 (planting). The position is detected by the clutch on / off detecting means). In the "up" position, the lift cylinder hydraulic valve 30 is in the raised position and the planting clutch 21 is in the off state, and in the "fixed" position, the lift cylinder hydraulic valve 30 is in the stop state and the planting clutch 21 is in the off state. In the "automatic elevating (lowering)" position, the lift cylinder hydraulic valve 30 is in the automatic position (automatic elevating / lowering control state by the sensing float), and the planting clutch 21 is in the disengaged state. The valve 30 is in the automatic position and the planting clutch 21 is in the on state.

  As shown in FIGS. 1 and 4, the operating unit 8 of the traveling machine body 1 is provided with a working machine operating lever 34 protruding from the column of the steering wheel 12 to one side. The work implement operation lever 34 is electrically connected to a control unit 35 described later, and has the following functions based on the control operation of the control unit 35. That is, the operation pattern of the working machine operation lever 34 corresponds to the above-described positions of the hydraulic cam 31 “up”, “fixed”, “automatic up / down (down)”, and “planting”. Each time the work machine operation lever 34 is operated downward, it sequentially moves in the ascending direction (“planting” → “automatic elevating (lowering)” → “ascending”). Ascending ”→“ automatic elevating (falling) ”→“ planting ”. In addition, when the work implement operating lever 34 is operated in the reverse direction during the elevating operation of the planting work implement 3, the state becomes the "fixed" state. Thereby, the lifting / lowering operation of the planting work machine 3 and the on / off operation of the planting clutch 21 by the work machine operation lever 34 become possible.

  As shown in FIGS. 1 and 5, the planting working machine 3 includes a working machine frame 36 that is rotatably connected to the lifting link mechanism 2, and a plurality of planting transmission cases extending rearward from the working machine frame 36. 37, a seedling mounting table 38 slidably provided on a main body 3a of the planting work machine including a working machine frame 36 and a planting transmission case 37 via a slide support portion 38a, and a rear end of the planting transmission case 37. , A lateral feed mechanism 40 that slides the seedling mounting table 38 left and right while the planting mechanism 39 is being driven to plant, and a vertically swayable unit below the planting transmission case 37. When the seedlings run while planting the mat seedlings on the seedling mounting table 38, the plurality of planting mechanisms 39 scrape the seedlings from the lower end of the seedling mounting table 38 and move to the field. Plant.

  As shown in FIG. 2, the planting work machine 3 has, as a transmission configuration, an input shaft 42 for inputting power transmitted from the transmission case 7, a plurality of planting transmission cases 37 and a lateral feed mechanism 40 for transmitting the input power. A power distribution shaft 43 that distributes power to the planting transmission case 37, a chain transmission mechanism 45 that transmits power distributed to the planting transmission case 37 to the planting mechanism 39 via the locking clutch 44, and a power that is distributed to the lateral feed mechanism 40. A transverse feed drive shaft 46 that is driven to rotate and slides the seedling mounting table 38 in the reciprocating left and right directions. A lateral feed shaft rotation sensor 47 (lateral feed shaft rotation detecting means) is connected to one end of the lateral feed drive shaft 46, and the rotation of the lateral feed drive shaft 46 is detected.

  Further, the planting work machine 3 is provided with a greasing device 50 for greasing the slide support portion 38a of the seedling mounting table 38. The grease supply device 50 of the present embodiment is provided on the back surface of the seedling mounting table 38, and includes a grease cup 51 that pressurizes stored grease (lubricant) by a spring (not shown), and a grease cup 51 that is pressurized. A hose 52 that guides grease flowing out from the grease 51 to the slide support portion 38a, which is a lubricating point, and a grease flow path (lubricant flow path) from the grease cup 51 to the slide support portion 38a are interposed. And an electromagnetic on-off valve 53 for shutting off. Note that the planting work machine 3 of the present embodiment includes two left and right greasing devices 50, and each greasing device 50 performs greasing on a plurality of portions of the slide support portion 38a. The number of greasing points can be arbitrarily changed.

  The grease cup 51 includes a grease reservoir 51a having a grease inlet (not shown) and a grease outlet (not shown), a piston (not shown) slidably provided in the grease reservoir 51a, and a piston. (Not shown) that urges the grease toward the grease outlet side. When grease is injected into the grease storage container 51a from the grease injection port using a grease gun (not shown), the injected grease is stored in the grease storage container 51a while pressing the piston against the spring. As a result, the spring is pressurized. The grease stored in the grease storage container 51a continuously flows out of the grease outlet by an appropriate amount by the pressurization of the spring.

  The electromagnetic on-off valve 53 is interposed between the grease outlet of the grease cup 51 and the upper end of the hose 52, and communicates / blocks the grease flow path. The hose 52 includes an upstream hose 52a that extends downward from the electromagnetic on-off valve 53, a branch joint 52b that is connected to a lower end of the upstream hose 52a, and branches the grease flow path into a plurality of parts, and a branch joint 52b that extends downward. And a plurality of downstream hoses 52c extending to the slide support portion 38a.

  As shown in FIG. 6, the opening and closing of the electromagnetic on-off valve 53 is controlled by the control unit 35. The control unit 35 is a control unit configured using a microcomputer (microcontroller unit) and the like. On the input side of the control unit 35, the above-described hydraulic cam potentiometer 33, work implement operation lever 34, lateral feed shaft rotation sensor 47 and the like, while the output side of the control unit 35 is connected to the hydraulic cam motor 32, the electromagnetic on-off valve 53, and the like.

  The control section 35 opens the electromagnetic opening / closing valve 53 and supplies the slide support section 38a with grease only when the slide support section 38a of the seedling mounting table 38 needs greasing. That is, the control unit 35 determines that the traversing mechanism 40 is in the driving state, and when determining that the traversing mechanism 40 is in the driving state, opens the electromagnetic on-off valve 53 and determines that the traversing mechanism 40 is in the stopped state. Then, the solenoid on-off valve 53 is closed. The driving state of the lateral feed mechanism 40 is determined based on detection signals from the hydraulic cam potentiometer 33 and the lateral feed shaft rotation sensor 47.

  For example, when the detection position of the hydraulic cam 31 by the hydraulic cam potentiometer 33 is “planting”, the planting clutch 21 is in the engaged state, so that it is determined that the traverse mechanism 40 is in the driving state, while the hydraulic cam If the detection position of the position 31 is other than “planting”, since the planting clutch 21 is in the disengaged state, it can be determined that the lateral feed mechanism 40 is in the stopped state. Further, when the detected rotation of the transverse feed shaft rotation sensor 47 is equal to or more than a predetermined rotation, it is determined that the transverse feed mechanism 40 is in a driving state. On the other hand, when the detected rotation of the transverse feed shaft rotation sensor 47 is less than the predetermined rotation, It can be determined that the traverse mechanism 40 is in the stopped state.

  According to the present embodiment configured as described above, the traveling machine 1, the planting work machine 3 that is connected to the traveling machine 1 so as to be able to move up and down, and the greasing device that supplies oil to the lubrication points of the planting work machine 3. 50, wherein the planting working machine 3 comprises a seedling mounting table 38 slidably provided on the planting working machine main body 3a via a slide support portion 38a, and a seedling mounting table 38. A planting mechanism 39 for scraping the seedlings from the plant and planting the seedlings in a field, and a lateral feed mechanism 40 for sliding the seedling mounting table 38 left and right while the planting mechanism 39 is being driven for planting. A grease cup 51 that pressurizes the grease with a spring, a hose 52 that guides grease flowing out of the grease cup 51 by pressurization to the slide support 38a, and a grease flow path that extends from the grease cup 51 to the slide support 38a. A control unit 35 for controlling the opening and closing of the electromagnetic on-off valve 53 when the traversing mechanism 40 is in a driving state. When the valve 40 is in the stop state, the electromagnetic on-off valve 53 is closed.

  That is, when the electromagnetic on-off valve 53 is opened, the grease in the grease cup 51 is continuously supplied to the slide supporting portion 38a by an appropriate amount by pressurization, so that the slide supporting portion 38a can be lubricated without excess or shortage.

  In addition, since the electromagnetic on-off valve 53 is opened when the traverse mechanism 40 is in a driving state and closed when the traverse mechanism 40 is in a stopped state, it is possible to prevent unnecessary supply of grease while the traverse mechanism 40 is stopped. Thus, grease consumption is reduced.

  Further, since the control unit 35 of the present embodiment determines the driving state of the traverse mechanism 40 based on the detection signals of the hydraulic cam potentiometer 33 and the traverse shaft rotation sensor 47, it is possible to accurately determine the drive of the traverse mechanism 40. Based on this, it is possible to appropriately control the opening and closing of the electromagnetic on-off valve 53.

REFERENCE SIGNS LIST 1 traveling machine 3 planting work machine 3a planting work machine main body 21 planting clutch 33 hydraulic cam potentiometer 35 control unit 38 seedling mounting table 38a slide support unit 39 planting mechanism 40 lateral feed mechanism 47 lateral feed shaft rotation sensor 50 greasing Device 51 Grease cup 52 Hose 53 Solenoid on-off valve

Claims (2)

Traveling aircraft,
A planting work machine connected to the traveling body so as to be able to move up and down,
A greasing device for greasing the lubricating point of the planting work machine,
The planting work machine,
A seedling table provided on the main body of the planting work machine so as to be slidable left and right via a slide support portion,
Planting mechanism for scraping the seedlings from the seedling mounting table and planting them in the field,
A transverse feed mechanism that slides the seedling mounting table to the left and right during the planting drive of the planting mechanism,
The transverse feed mechanism, a transverse drive shaft that slides the seedling mounting table left and right by rotational drive,
A transverse feed shaft rotation detecting means for detecting the rotation of the transverse drive shaft,
The greasing device,
A grease cup that pressurizes the stored lubricant with a spring,
A hose that guides the lubricant flowing out of the grease cup by pressurization to the slide supporting portion that is a lubricating point;
An electromagnetic on-off valve interposed in a lubricant flow path from the grease cup to the slide support portion and communicating / blocking the lubricant flow path;
The control unit that controls the opening and closing of the electromagnetic on-off valve opens the electromagnetic on-off valve when the traverse shaft rotation detection unit detects the rotation state of the traverse shaft , and the traverse mechanism detects a stop state. The implanting machine is characterized in that the electromagnetic on-off valve is closed when in operation. The control unit determines that the traverse mechanism is in a driving state when the rotation detected by the traversing axis rotation detection unit is equal to or more than a predetermined rotation, and that the traversing mechanism is in a stopped state when the rotation is less than the predetermined rotation. The transplanter according to claim 1, wherein

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