JP6571402B2 - Transplanter - Google Patents

Description

  The present invention relates to a transplanter such as a riding type rice transplanter, and more specifically, a transplanter in which a planting device is connected to a machine body including a front wheel and a rear wheel so as to be movable up and down, and a lubrication portion of the planting device is lubricated by a greasing device. About.

  A planting device for a riding type rice transplanter is provided with a storage tank for storing lubricating oil, an oil pump for sending the lubricating oil from the storage tank to a plurality of oiling points in the planting device, and an operation tool for the oil pump. There is known an oiling device that appropriately supplies lubricating oil to a plurality of locations (for example, see Patent Document 1). Similarly, there is known a sliding part structure of a seedling stage that supplies a lubricant to a sliding rail surface that supports the seedling stage of the riding type rice transplanter so as to be capable of reciprocating left and right (see, for example, Patent Document 2). ).

JP 2000-14217 A JP 2013-21963 A

  Among the planting equipment of the riding type rice transplanter, which is provided with an oil supply device or a grease supply device, the former one swings the operation tool and supplies lubricating oil from the oil supply pump to a plurality of oil supply locations at once. Since the centralized oil supply system is adopted, the oil supply can be centralized. Further, when the operator operates the operation tool, an appropriate amount of lubricating oil can be supplied to the lubrication point based on the operation amount or the number of operations.

  However, in this case, if the operator forgets the lubrication operation or does not carry out the lubrication operation, the lubrication member wears even if the lubrication operation is performed by noticing the occurrence of abnormal noise from the planting device. As a result, a great deal of work time and cost are required for repair and replacement. In addition, as the farming farming progresses, the operating time of the riding rice transplanter through the shared use of machinery has also been prolonged, and the frequency of oiling per day has increased accordingly. It is difficult to overlook the power loss due to the frictional resistance.

  Furthermore, in the former case, it can be said that an appropriate amount of lubricating oil can be supplied to the lubrication point based on the operation amount of the operation tool, but the lubrication point is often located inside the machine that is difficult to see. Therefore, it is difficult to visually grasp the required amount of lubrication, and if the amount of operation of the operation tool is determined only by intuition, excess or deficiency of the amount of lubrication will occur and the lubricating oil may leak out to the surroundings. There is a problem that sufficient lubrication is not performed and wear progresses.

  And in the supply of lubricating oil by gravity using natural flow from the storage tank, if the supply distance to the lubrication point is long or short, there is a possibility that sufficient lubricating oil may not be supplied to the part where the oil path resistance is large Adopted forced lubrication by oil pump. However, for example, the left and right oil passages for supplying lubricating oil to the sliding surface between the seedling platform and the support frame shown in FIG. 2 clearly have long and short supply distances, and the oil passage resistance naturally differs between the left and right. Therefore, it cannot be said that the excess or deficiency of the lubricating oil is necessarily eliminated just because the forced lubrication is performed.

  In the latter case, a space for holding the lubricant is provided between the cover body and the slide rail, and the lubricant is injected into the space from the injection plug provided in the partitioning part of the seedling stand via the pipe and the hose. Since (grease) is supplied, the frequency of filling the sliding portion of the seedling table with grease can be reduced. However, there is an inconvenience that it is necessary to individually fill the plurality of sliding parts of the seedling stand with grease, and since the amount of grease filled in the space cannot be visually checked, there is an excess or deficiency of the lubricant. There are problems such as leakage to the surroundings, and insufficient lubrication and wear.

  Therefore, in view of the above problems, the present invention can easily supply a suitable amount of lubricant in a timely manner to the lubrication part of the planting device, and the lubricant leaks to the surroundings due to excess or deficiency of the lubricant, It is an object to provide a transplanter in which insufficient lubrication does not occur.

In order to solve the above-mentioned problem, the present invention firstly relates to a transplanting machine in which a planting device is connected to a machine body including a front wheel and a rear wheel so that the planting device can be moved up and down, and a lubricating portion of the planting device is lubricated by a greasing device. The greasing device communicates and blocks the grease cup that stores lubricant and applies pressure to the lubricant with a spring, the hose that supplies the lubricant to the lubrication point, and the oil path between the grease cup and the hose. An on-off valve ,
The hose is passed through a groove of a guide rib provided between adjacent mat seedling placement portions of the seedling mounting base, and a joint is provided in the middle of the hose, and each hose branched from the joint to the upper part of the vertical feed belt is provided. By detouring to the left and right, with the harness of the seedling shortage sensor fixed to the back of the seedling mounting stand with a wire band and configured by piping,
During the operation of the planting device, the on-off valve is opened, and an appropriate amount of lubricant is continuously supplied from the grease cup to the lubrication point.

In addition, the present invention is characterized in that, secondly, the nozzle attached to the lubrication point is inclined so as to be separated from the planting device, and the end portion of the hose is fixed to the nozzle with a clip .
Further, according to the present invention, thirdly , the grease cup and the on-off valve are attached to a single member that is detachably attached to the planting device to form a unit, and the on-off valve is attached directly below the grease cup. It is characterized by that.

Fourthly , the present invention is such that the single member is formed into a T-shape consisting of a recumbent and a vertical reed, a reed is disposed on the back surface of the guide rib, and the left and right ends of the recumbent reed are planted. It is attached to the left and right outer sides of the guide rib on the back surface of the seedling platform of the apparatus, the grease cup is attached to the upper side of the attachment surface protruding in the middle of the vertical shaft, and the on-off valve is attached to the lower side. To do.

  According to the transplanter of the present invention, a grease cup that stores lubricant and applies pressure to the lubricant with a spring, a hose that supplies the lubricant to the lubrication point, and an oil path between the grease cup and the hose are provided. The lubrication device is composed of the open / close valve that communicates and shuts off, and the open / close valve is opened while the planting device is in operation, so that an appropriate amount of lubricant is continuously supplied from the grease cup to the lubrication point. When the on-off valve is opened at this time, the lubricant is continuously supplied from the grease cup to the lubrication part by a pressurized pressure, so that the lubrication part can be lubricated without excess or deficiency.

  In addition, when the planting operation is completed or a break is made, the supply of lubricant can be stopped by closing the on-off valve. It is possible to prevent the surroundings from being soiled by preventing the lubricant from leaking out.

  In addition, the lubricant is supplied to the lubrication point at a predetermined flow rate determined by the spring biasing force, pipe resistance such as hose length and pipe diameter, etc., so that the capacity of the grease cup and the spring biasing force are planted throughout the day. By deciding on the basis of the amount of lubrication required at the time of operation, for example, the operation tool (open / close valve) can be opened and closed at the start and end of the day, reducing the frequency of greasing operations In addition, there is no need to care about the operation amount of the operation tool.

  Often, it is not possible to directly confirm that the lubrication point is located inside the machine and the lubricant has reached the lubrication point. However, in this case, if the grease cup or hose that stores the lubricant is made of a transparent or translucent material, the grease cup or hose is properly filled with the lubricant, and there is little remaining lubricant. Therefore, it is possible to indirectly detect the breakage of the piping or the like from the decrease of the lubricant in the grease cup or the like, so that insufficient lubrication to the lubrication point can be prevented.

  In addition, a grease cup and an open / close valve are attached to the upper back of the seedling stand of the planting device, a nozzle is attached to the lubrication point of the planting device, and a hose with the above open / close valve and nozzle piped to the back of the seedling stand. When connected, the grease can be filled into the grease cup and the opening / closing operation of the on-off valve can be performed from the control unit side while riding on the airframe, and it is difficult to reach between the planting device and the airframe. Even so, it can be easily lubricated.

  Furthermore, a joint is provided in the middle of the hose, and the pipe resistance of the lubricant reaching the two lubrication points of the planting device with the tube diameter, length, material, and bending of each hose branching bifurcated from this joint being substantially the same. Are substantially the same, the lubricant can be evenly supplied to the two lubrication locations, and excess or deficiency of the lubricant can be prevented. In addition, the lubricant stored in the grease cup can be branched and supplied to two lubrication locations, reducing the cost compared to providing a lubrication device at each lubrication location, the number of operations of the on-off valve, and The work time for filling the grease cup with the lubricant can be reduced.

  Then, the hose is passed through the groove of the guide rib provided between the adjacent mat seedling placing parts of the seedling placing table, and each hose branching from the joint is diverted to the left and right at the upper part of the vertical feed belt, When the sensor harness and the back of the seedling stand are fixed with a wire band and piped, the hose can be prevented from interfering with and being damaged by a member such as a vertical feeding belt of the planting device. In addition, since it is fixed with a wire band together with the seedling shortage sensor harness, the piping is stabilized, and the wire cost can be shared to reduce the piping cost. Further, when the hose is re-piped during maintenance, there is no possibility that the mounting position is wrong, and the increase or decrease in pipe resistance due to a pipe error can be eliminated.

  In addition, if the nozzle attached to the lubrication point is tilted away from the planting device, and the end of the hose is fixed to the nozzle with a clip, the position of the end of the hose is stable and unforeseen on the drive shaft of the longitudinal feed belt There is no possibility of contact, and the flow of the lubricant is improved, and the pipe resistance can be reduced.

It is a side view of a riding type rice transplanter. It is a top view of a riding type rice transplanter. It is a side view of a planting apparatus. It is a rear view of a planting apparatus. It is a rear view which shows the right half of a planting apparatus. It is a perspective view which shows the upper part side of a seedling mounting stand. It is an expanded view which shows the structure of the sliding part of a seedling mounting stand. It is a side view which shows the structure of the sliding part of a seedling mounting stand. It is a perspective view which shows the structure of the sliding part of a seedling mounting stand (a part of conventional structure is included). It is a perspective view which shows piping of a hose.

  Embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, a riding type rice transplanter 1 constituting a transplanter has a planting device 5 attached to a rear part of a machine body 4 including a front wheel 2 and a rear wheel 3 by a hydraulic cylinder 7 via a link mechanism 6. Connect up and down freely. The airframe 4 is configured by integrally connecting a chassis frame 8, a transmission case 9, a front axle case, a rear axle case 10, and the like, and a water-cooled inline three-cylinder diesel engine 11 is mounted on the front portion of the airframe 4.

  Further, a radiator bracket is erected on the chassis frame 8 at the rear of the engine 11, a radiator having a radiator fan driven by an electric motor is attached to the radiator bracket, and an air cleaner is attached above the engine 11. Configure the prime mover. Further, a steering wheel 13 is provided on the upper part of the steering column 12 that is erected on the rear side of the radiator, and a rear panel cover 14 covers the rear side of the steering column 12.

  The steering column 12 is provided with lever guides such as a main transmission lever 15, an auxiliary transmission lever 16, and an engine control lever 17, and the middle of the steering column 12 and the upper part of the radiator bracket are connected to each other by a connection bracket. A meter panel 18 having an instrument panel and various switches is attached to the connection bracket. Further, a fulcrum pin is provided at the left and right ends of the connection bracket near the front part, and a bonnet 19 that covers the driving part of the engine 11 and the like is pivotally supported by the fulcrum pin so that the upper part on the rear side can be pivoted. Support the side to open and close.

  Further, the left and right front steps 20 are provided on the chassis frame 8 on the left and right sides of the bonnet 19 (the driving portion), and the rear steps 21 are provided behind the left and right front steps 20 and the rear panel cover 14. Further, the rear portion of the rear step 21 is formed as an inclined surface 21 a that rises upward, and an opening is provided between the center of the floor surface and the inclined surface 21 a, and the opening is closed by the seat under cover 22.

  The seat under cover 22 is provided with a hole on the upper surface, and the driver seat 23 that is rotatably attached to the chassis frame 8 through the hole has a seating posture above the seat under cover 22 and a lying posture that is tilted to the steering wheel 13 side. Can be switched. The steering unit includes the steering wheel 13, the rear step 21, the driver's seat 23, and the like. Further, side steps are provided on the left and right sides of the rear step 21.

  The side step is composed of a lower step 24 and an upper step 25. Of these steps, the lower step 24 is an extension step that is substantially flush with the tread surface of the rear step 21 and continues to the left and right of the rear step 21. In addition, the upper step 25 is provided above the rear side of the lower step 24 and serves as a scaffold for replenishing the planting device 5 with seedlings. Note that a sub-step 26 for facilitating getting on and off the machine body 4 and a side support frame 27 for supporting the operator's body are attached to the lower step 24. A rear support frame 28 is attached to the rear of the upper step 25.

  Further, on both the left and right sides near the front of the machine body 4, a spare seedling stand 29 for placing a spare seedling (mat seedling) through a mounting frame raised from the chassis frame 8, and the mat seedling slide from the edge. A slide-type preliminary seedling stand 30 that is supplied to the planting device 5 is provided. Further, a center pole 31 is provided at the front portion of the chassis frame 8 so as to be pivotable back and forth, and trace markers 32 are provided on the left and right sides of the chassis frame 8. In addition, 33 is a paste tank for performing side strip fertilization, and 34 is a fuel tank.

  Next, the planting device 5 will be described. As shown in FIGS. 3 and 4, the planting device 5 includes a planting frame 35 that is connected to the rear portion of the link mechanism 6 in a rolling manner, and four plants that are attached to the planting frame 35. Planter case 36, apron 37 disposed above planter case 36 in the left-right direction, seedling mounting table 38 that moves left and right along apron 37, and planting claws (beaks) from the lower end of seedling mounting table 38 A rotary planting mechanism 40 that is scraped by 39 and planted on the paddy surface, a float 41 that slides on the paddy field and leveles the running trace while leveling, a pillow that is provided between the rear wheel 3 and the float 41 and is roughened by turning of the airframe 4 A rotor 42 and the like for leveling the ground are provided.

  The power from the engine 11 is transmitted to the drive case 43 of the planting device 5 through the transmission case 9 and the planting PTO shaft and the propeller shaft. Further, it is transmitted from the drive case 43 to the planter case 36 and the lateral feed case 44 through the shaft. Further, it is transmitted from the traveling PTO shaft provided in the transmission case 9 to the rotor gear case 45 via a propeller shaft or the like.

  The power transmitted to the planter case 36 drives the rotary planting mechanism 40, and the power transmitted to the lateral feed case 44 rotates and drives a screw shaft (not shown) in the spiral groove of the screw shaft. A slide block that meshes with and is connected to the back surface (front surface) of the seedling mounting table 38 drives the seedling mounting table 38 back and forth. The longitudinal feed cam provided at one end of the screw shaft drives the longitudinal feed mechanism 46 of the seedling stage 38. Further, the power transmitted to the rotor gear case 45 drives the rotor 42.

  Further, the seedling mounting table 38 will be described. The seedling mounting table 38 has a front, rear, and lower inclined posture in the planting device 5, and the surface (rear surface) is partitioned by a plurality of guide ribs 38a facing in the vertical direction. The mat seedling placement portions 38b are provided, for example, for eight strips corresponding to the number of planting strips. Each mat seedling placement section 38b is provided with a pair of left and right vertical feeding belts 46a and 46a constituting the vertical feeding mechanism 46, and a seedling for detecting the presence or absence of a mat seedling between the left and right vertical feeding belts 46a and 46a. A break sensor 47 is provided. Further, an extended seedling mounting base 38d is provided above the mat seedling mounting portion 38b.

  Further, as shown in FIGS. 5 to 7, each mat seedling placement portion 38b is attached to the three rails 38e, 38f, and 38g with rivets on the upper and lower sides of the rear surface thereof, so that the seedling placement plate 38 is mounted. The mat seedling placement portions 38b are connected and integrated in a series in the left-right direction. Of the three rails, the rail 38f on the upper end side is fitted to an upper slide piece 49 attached to a gate-shaped stay 48 standing from the planting frame 35, and is standing from the planting frame 35. The front surfaces of the rollers 51 attached to the left and right supports 50 are in contact with each other, whereby the upper end side of the seedling table 38 is supported.

  Further, a plurality of lower slide pieces 52 are attached to the lower surface of the rail 38g on the lower end side by bolts and nuts, while a plurality of plates 53 are attached to the seedling support part 37a of the apron 37 by tapping screws. When the lower slide piece 52 is fitted on the plate 53, the lower end of the seedling mounting table 38 is supported by the seedling mounting table support part 37 a of the apron 37. Further, as shown in FIGS. 8 and 9, if the upper side rail 38g is prevented from moving upward by the plate 54 and the support 55 attached to the apron 37, the above-mentioned fitted state is maintained, and the seedling stage 38 is Only lateral movement with respect to the apron 37 is allowed.

  The apron 37 forms a seedling receiving wall 37b for receiving the lower end portion of the mat seedling behind the seedling support base 37a. Further, a scraping hole 37c is cut out in the seedling receiving wall 37b, and the scraping hole 37c passes through the planting claw 39 so that seedlings can be taken out from the seedling mount 38 one by one. Further, the apron 37 is attached to the planter case 36 via a bracket so as to be movable up and down. When the apron 37 is moved up and down by a planting number adjusting lever 56 provided in front of the seedling mount 38, the apron 37 and the seedling receiving wall 37b are planted. The relative distance from the attached claw 39 is changed, and the scraping amount of the seedling by the planted claw 39 can be adjusted.

  Therefore, in short, the seedling stage 38 is guided at its upper end side by the upper slide piece 49 and the roller 51, and its lower end side is supported by the seedling stage support part 37a of the apron 37 via the lower slide piece 52, The slide block connected to the rear surface meshes with the helical groove of the screw shaft to reciprocate the seedling mounting table 38 in the left-right direction.

  The mat seedling placed on the mat seedling placing portion 38b while the seedling placing stand 38 moves left and right is 1 by the planting claws 39 in a state where the lower end portion is received by the seedling receiving wall 37b of the apron 37. Each stock is scraped and planted on the rice field. When the seedling stage 38 reaches the left and right reciprocating ends, the longitudinal feed cam provided at one end of the screw shaft drives the left and right longitudinal feed belts 46a and 46a, and the mat seedling is directed vertically toward the seedling receiving wall 37b. It can be fed and planted continuously.

  By the way, the sliding part of the seedling stage 38 will be described again here. The apron 37 that supports the seedling stage 38 is formed of an aluminum drawing member, and the seedling stage support part 37a is made of a hard material such as stainless steel. A plate 53 is attached to prevent the seedling support 37a from being worn. In addition, the other seedling stage 38 has a resin slide piece 52 attached to the sliding portion thereof to prevent wear caused by sliding with the plate 53.

  However, from the work environment, muddy water, pebbles and the like are likely to adhere on the plate 53, and the slide piece 52 is thus worn early. Further, when the other plate 53 is worn, the lateral feed resistance increases, which may cause noise or damage the lateral feed mechanism (screw shaft of the lateral feed case 44). Therefore, conventionally, as shown in FIG. 9, the rail 38g is provided with a grease supply port, the cap C is removed, and grease is manually supplied from the grease supply port to the sliding portion to lubricate the sliding portion.

  For this reason, it is troublesome to supply grease to the sliding part, and if this is neglected, wear will progress due to insufficient lubrication, and if it is performed manually, excessive grease will be supplied, and grease will leak from the sliding part and will Was dirty. Furthermore, since the slide pieces 52 are distributed and attached to a plurality of positions in the left-right direction of the seedling stage 38, a plurality of grease supply ports are provided along with the slide pieces 52. 3 and the planting device 5 were taken out, and the grease was supplied from the grease supply port with the spray grease having a long nozzle, and the greasing time was accordingly complicated.

  Therefore, the present invention provides a greasing device capable of supplying a suitable amount of lubricant (grease) to a portion of the planting device 5 that requires lubrication in a timely manner. Provided is a grease supply device that automatically supplies grease to a sliding portion (lubricated portion) that reciprocates left and right of a table.

  Hereinafter, the greasing device of the planting device 5 will be described with reference to FIGS. 5 to 8. The greasing device is configured using a grease cup 57, an on-off valve 58, a hose 59, a joint 60, a nozzle 61, and the like. . The grease cup 57 for storing grease includes a main body 57b provided with a nipple 57a for supplying grease and a dome 57c made of hard transparent plastic, and the dome 57c is screwed onto the upper part of the main body 57b and integrally connected. And configure.

  The dome 57c incorporates a piston and a spring for pressing the piston, and the grease guided from the nipple 57a to the main body 57b and the dome 57c against the spring is temporarily stored in the grease cup 57, and thereafter The grease is pressurized by the piston pushed by the spring, and the grease is discharged from the discharge port 57d provided at the lower part of the main body 57b. An opening / closing valve 58 for stopping the grease discharge (communication / shutoff) is connected to the discharge port 57d of the grease cup 57.

  Further, the grease cup 57 and the on-off valve 58 configured as described above are attached to a T-shaped bracket 62 to constitute a grease cup assembly. Further, the T-shaped bracket 62 is screwed together with the extension seedling table 38d, and a grease cup assembly is attached to the upper part of the back surface of the seedling table 38. Then, the start end side of the transparent or translucent first vinyl hose 59a is connected to the outlet of the on-off valve 58 through the back of the rail 38f on the upper end side, and is fixed by the clip 63.

  In addition, a T-shaped joint 60 is connected to the terminal end side of the first vinyl hose 59a and fastened with a clip 63, and the remaining two connection portions of the joint 60 are connected to the second and third vinyl hoses 59b and 59c. The start ends are connected to each other and fixed with clips 63. Then, the second and third vinyl hoses 59b and 59c are routed along the corrugated tube 64 covering the harness of the seedling break sensor 47 in which the second and third vinyl hoses 59b and 59c are routed above the longitudinal feed belts 46a and 46a. Is fixed to the rear surface of the seedling stage 38 together with the corrugated tube 64 by the wire band 65, and the upper portions of the vertical feed belts 46a and 46a are bypassed to the left and right, and then the second and third vinyl hoses 59b and 59c are connected. The terminal side of the

  On the other hand, the nozzle 61 for supplying the grease to the sliding portion of the seedling stage 38 is formed by a steel pipe 61b welded to the bracket 61a that rises slightly inclined forward from the bracket 61a, and this bracket 61a is formed on the seedling stage. The lower slide piece 52 is mounted on the rail 38g on the lower end side of the 38 using a bolt for mounting. Further, the end of the second or third vinyl hose 59b, 59c is connected to the upper end of the steel pipe 61b and is fastened with a clip 63.

  Accordingly, the grease passes through the communication hole r1 formed in the rail 38g from the tip of the nozzle 61 and the communication hole r2 of the slide piece 52, and is stored in the oil reservoir p formed on the lower surface of the slide piece 52. In addition, the first vinyl hose 59a that reaches the joint 60 from the on-off valve 58 through the piping of the hose 59 described above passes through the groove a of the guide rib 38a located between the two mat seedling placement portions 38b, thereby planting the first hose 59a. Interference with other components of the attaching device 5 can be prevented.

  Further, the first vinyl hose 59a is passed through the groove a of the guide rib 38a, and the second and third vinyl hoses 59b and 59c are routed along the corrugated tube 64 covering the harness of the seedling breakage sensor 47 and corrugated by the wire band 65. It fixes to the back surface of the seedling mounting stand 38 with the tube 64. Furthermore, if the nozzle 61 (steel pipe 61b) is tilted forward and separated from the longitudinal feed belt 46a, the hose 59 may unexpectedly hang down and come into contact with the drive shaft 46b of the longitudinal feed belt 46a. Lost and stable piping. Further, since the hose 59 is fixed by using the wire band 65 for fixing the corrugated tube 64, the piping cost can be reduced. Further, when the hose 59 is re-connected during maintenance, the hose 59 is again attached to the remaining wire band 65. There is no risk of mistakes because it only needs to be attached.

  The grease supply device of the planting device 5 configured as described above, for example, opens the on-off valve 58 in a state where the grease is set in the grease gun before performing the planting operation, and the nipple 57a of the grease cup 57 Press the grease gun straight down to fill it with grease. In this case, since the on-off valve 58 is open, the grease is forcibly supplied until the end of the hose 59 (second and third vinyl hoses 59b, 59c) is filled with grease.

  When the grease is forcibly supplied, the maximum amount of grease is stored in the grease cup 57. Here, the on-off valve 58 is once closed and the start of the planting operation is awaited. When the planting operation is started, the opening / closing valve 58 is opened again, and the grease stored in the grease cup 57 is gradually supplied to the lubrication location by the pressure applied by the spring. When the planting operation is finished or a break is taken, the on-off valve 58 is closed to stop the supply of lubricant.

  Therefore, when the on-off valve 58 is opened while the grease is forcibly supplied and the grease cup 57 stores the maximum amount of grease, the amount of grease necessary for lubrication on the sliding portion of the seedling stage 38 is increased and decreased. Continue to be supplied. Further, if the capacity of the grease cup 57 is determined so that this continues throughout the planting operation, the opening / closing operation of the opening / closing valve 58 may be performed once a day. It is not necessary to perform the fat operation frequently.

  In addition, such a greasing operation is simple because it only opens and closes the opening / closing valve 58 at the upper back of the seedling table 38 from above the machine body 4, and even when the grease cup 57 is filled with grease. Since it can be performed from above the machine body 4, it is not necessary to start greasing between the rear wheel 3 and the planting device 5 and directly greasing the grease supply port, thereby shortening the greasing work time. Can do.

  Moreover, if the dome 57c of the grease cup 57 is transparent and the hose 59 is also transparent or semi-transparent, it is possible to visually check whether the grease cup 57 needs to be filled with grease and the supply state of the lubricant to the lubrication location. It is possible to quickly take appropriate measures accordingly. Further, the second and third vinyl hoses 59b and 59c branched from the first vinyl hose 59a by the joint 60 have the same or substantially the same tube diameter, length, material, and bend, and the seedling mounting. Since the pipes are connected to the two sliding portions of the table 38, the pipe resistances of the both are substantially the same, and the lubricant can be supplied equally to the two lubrication points.

  Further, in the present embodiment, two sets of the above-described greasing devices are attached to the planting device 5 and each of the two locations is lubricated for a total of four locations. However, when performing four lubrication points with a set of greasing devices, first branch from the first hose 59 to the second and third hoses 59 and then from the second and third hoses 59. Lubrication may be performed by the four final hoses 59 branched into two forks. In this case as well, the pipe lengths and the bends of the respective hoses 59 are the same, and the pipe resistance is made equal. Further, the capacity of the grease cup 57, the urging force of the spring, etc. are reviewed, and this is appropriately determined based on the amount of lubrication required when the planting operation is performed all day.

  It should be noted that more than four lubrication points may be lubricated by the above-described greasing device, or one location may be lubricated, and if the pipe resistance can be made substantially the same, branch from the joint 60 The lengths, bends, etc. of the hose 59 are not necessarily the same, and the present invention is not limited to the above embodiment.

1 Passenger rice transplanter (Transplanter)
2 Front Wheel 3 Rear Wheel 4 Airframe 5 Planting Device 38 Seedling Stand 38a Guide Rib 46a Vertical Feed Belt 47 Seedling Sensor 52 Slide Piece (Lubricated Location)
53 Plate (Lubricated part)
57 Grease cup 58 On-off valve 59 Hose 60 Joint 61 Nozzle 63 Clip 65 Wire band

Claims (4)

In a transplanting machine in which a planting device is connected to a machine body including a front wheel and a rear wheel so as to be movable up and down, and a lubrication portion of the planting device is lubricated by a greasing device, the lubrication device stores a lubricant and lubricates with a spring. A grease cup that applies pressure to the agent, a hose that supplies lubricant to the lubrication point, and an on-off valve that communicates and blocks the oil passage between the grease cup and the hose ,
The hose is passed through a groove of a guide rib provided between adjacent mat seedling placement portions of the seedling mounting base, and a joint is provided in the middle of the hose, and each hose branched from the joint to the upper part of the vertical feed belt is provided. By detouring to the left and right, with the harness of the seedling shortage sensor fixed to the back of the seedling mounting stand with a wire band and configured by piping,
An transplanter characterized in that an on-off valve is opened during operation of the planting device, and an appropriate amount of lubricant is continuously supplied from the grease cup to the lubrication point. The transplanter according to claim 1 , wherein a nozzle attached to the lubrication point is inclined so as to be separated from the planting device, and a terminal end portion of the hose is fixed to the nozzle with a clip . The grease cup and the on-off valve are attached to a single member that is detachably attached to the planting device to form a unit, and the on-off valve is attached directly below the grease cup. The transplanter according to claim 2 . The single member is formed into a T-shape composed of a reed and a reed, the reed is disposed on the back surface of the guide rib, and the left and right ends of the reed are the guide ribs on the back surface of the seedling platform of the planting device. 4. The transplanter according to claim 3 , wherein the transplanter is attached to the left and right outwards, the grease cup is attached to an upper side of an attachment surface projecting in the middle of the vertical shaft, and the on-off valve is attached to a lower side .

Images