CN102845168B - Seedling transplanting machine - Google Patents

Abstract

The present invention provides a seedling transplanting machine capable of supplying fertilizer from plantation of seedling and capable of reliably informing an operator that remain of the fertilizer is becoming less. The seedling transplanting machine is characterized in that a rear part of walking car body is provided with a planting device, a fertilizer device, and an operating component used for performing stop and advance operations for the walking car body, wherein the planting device and the fertilizer device stop and work in linkage with the stop and advance operations of the operating component, the seedling transplanting machine is also provided with a control device, when the operating component performs the advance operation, the control device begins to drive the fertilizer device, after predetermined time from driving the fertilizer device, the control device enables the walking car body to advance and begins to drive the planting device.

Description

Seedling transplanting machine

Technical field

The present invention relates to the seedling transplanting machine possessing fertilizer apparatus and seeding transplantation apparatus at the rear portion of walking vehicle body.

Background technology

In the past, possess in the seedling transplanting machine of seeding transplantation apparatus at the rear portion of walking vehicle body, the known ride-type seedling transplanting machine possessing following fertilizer apparatus, described fertilizer apparatus is provided with fertilizer can at the rear portion of walking vehicle body, while by rice shoot transplanting to field, while supply the fertilizer (for example, referring to patent document 1) be accumulated in fertilizer can.

General seedling transplanting machine is configured to, and the output from engine is inputed to forward-reverse switching stepless speed change device freely, from this stepless speed change device, driving force is supplied to seeding transplantation apparatus or fertilizer apparatus.Thus, when carrying out advance walking operation to seedling transplanting machine, seeding transplantation apparatus and fertilizer apparatus work in linkage, start transplanting operation and the fertilization effect of rice shoot.

Patent document 1: Japanese Unexamined Patent Publication 2009-201520 publication

; due to be supplied to rice shoot from the fertilizer of fertilizer apparatus supply via fertilising flexible pipe transplanting position near structure; therefore; it is slower than starting transplanting rice shoot to start to supply fertilizer; can produce when starting transplanting rice shoot the interval not being supplied to fertilizer, thus there is the problem causing seedling development bad.

And, there is such problem: operator is unaware of notice when fertilizer is used up, continue operation not awaring under the state that fertilizer uses up, produce the interval not supplying fertilizer, thus the interval making genesis and development bad expands.

Summary of the invention

Contemplated by the invention the problem of existing seedling transplanting machine, even if its object is to provide a kind of transplanting starting position at rice shoot also reliably can supply the seedling transplanting machine of fertilizer.In addition, its object is to provide a kind of this situation that the surplus of fertilizer can be tailed off reliably to inform to the seedling transplanting machine of operator.

Above-mentioned problem of the present invention is solved by following solution.

The present invention described in technical scheme 1 is seedling transplanting machine, it is characterized in that, described seedling transplanting machine is configured to, walking vehicle body 9 is provided with engine 23 and stepless speed change device 33, transplanting device 14 and fertilizer apparatus 16 is provided with at the rear portion of this walking vehicle body 9, be provided with and this walking vehicle body 9 stopped and the functional unit 38 of forward operation, and described seedling transplanting machine is provided with control actuator, described control actuator changes the gear ratio of this stepless speed change device 33 according to the operation of described functional unit 38

Stopping and the forward operation of transplanting device 14 and fertilizer apparatus 16 and this functional unit 38 stop in linkage and work, when carrying out forward operation to described functional unit 38, start from the output shaft of described engine (23) to driving described fertilizer apparatus 16 transmission of drive force, described seedling transplanting machine is provided with control device 50, when from starting to drive this fertilizer apparatus 16 after a predetermined time, described control device 50 makes to make the work of control actuator accordingly with the operating position of described functional unit 38, utilize the power from described stepless speed change device 33, described walking vehicle body 9 is made to start walking of advancing, and start to drive transplanting device 14.

The present invention described in technical scheme 2 is the seedling transplanting machine described in technical scheme 1, it is characterized in that, in described seedling transplanting machine, be provided with the Rotating speed measring parts 62 of the rotating speed of the driving shaft for detecting described fertilizer apparatus 16, and be provided with the fertilizer surplus detection part 63 of the surplus of the fertilizer for detecting described fertilizer apparatus 16, described control device 50 is configured to, when these Rotating speed measring parts 62 detect the rotating speed of more than predetermined value, or when fertilizer surplus detection part 63 detects the surplus of the fertilizer being less than predetermined value, described control device 50 makes the work of described control actuator slow down to make described walking vehicle body 9.

The present invention described in technical scheme 3 is the seedling transplanting machine described in technical scheme 1 or 2, it is characterized in that, in described seedling transplanting machine, be provided with the spacing in the rows handover operation parts 24 that the transplanting interval for the rice shoot to 14 transplantings of described transplanting device regulates, and the interval alteration detection parts be provided with for detecting the operation of these spacing in the rows handover operation parts 24, described control device 50 is configured to, when these interval alteration detection parts detect described spacing in the rows handover operation parts 24 be operated to make the transplanting interval of rice shoot become large side time, described control device 50 makes the work of described control actuator slow down to make described walking vehicle body 9.

The present invention described in technical scheme 4 is the seedling transplanting machine described in technical scheme 1 or 2, it is characterized in that, in described seedling transplanting machine, be provided with the gradient detection part 71 of the gradient for detecting described walking vehicle body 9, described control device 50 is configured to, when this gradient detection part 71 detects the gradient of more than predetermined value, described control device 50 makes the work of described control actuator slow down to make described walking vehicle body 9.

The present invention described in technical scheme 5 is the seedling transplanting machine described in technical scheme 1 or 2, it is characterized in that, in described seedling transplanting machine, be provided with rice shoot detection part 46, described rice shoot detection part 46 is less than this situation of predetermined value for the surplus of the rice shoot detecting described transplanting device 14, described control device 50 is configured to, when this rice shoot detection part 46 detects the surplus of the rice shoot being less than predetermined value, walking stop position is operated to even without by described functional unit 38, described control device 50 also makes the work of described control actuator stop making walking, afterwards, even if described rice shoot detection part 46 no longer detects the surplus of the rice shoot being less than predetermined value, if described functional unit 38 is not operated to walking stop position, also walking is limited.

The present invention described in technical scheme 6 is the seedling transplanting machine described in technical scheme 1 or 2, it is characterized in that, in described seedling transplanting machine, be provided with the engine control actuator of the rotating speed for controlling this engine 23, in described seedling transplanting machine, be provided with the fuel temperature measurement parts 77 of the temperature of the working oil for measuring described stepless speed change device 33, described control device 50 is configured to, when the temperature of the working oil that these fuel temperature measurement parts 77 detect is less than predetermined value, described control device 50 makes the work of described engine control actuator to increase the rotating speed of engine 23.

For the present invention described in technical scheme 1, when seedling transplanting machine 8 starts to advance with transplanting job state, field is expelled to from the fertilizer that fertilizer apparatus 16 is sent, then body starts to advance and starts the driving of drive unit 14, thereby, it is possible to prevent the interval not having spread manure, therefore, prevent and produce difference in the growth of crop, the steady quality of the crop of results.

In addition, in order to prevent the generation between non-fertilization area, operator, without the need to carrying out complicated operation, improves operability.

For the present invention described in technical scheme 2, on the basis of the invention effect described in technical scheme 1, when Rotating speed measring parts 62 or fertilizer surplus detection part 63 detect that fertilizer is used up, control device 50 switches to low speed walking or walking is stopped, thus, can prevent from being unaware of fertilizer use up and proceed transplanting operation, therefore prevent the Crop development caused by fertilizer deficiency bad.

For the present invention described in technical scheme 3, on the basis of the invention effect described in technical scheme 1 or 2, by being formed as the structure automatically controlling the speed of travel of walking vehicle body 9 when changing the transplanting interval of rice shoot, transplanting walking can be carried out with the speed at the transplanting interval being suitable for set rice shoot, therefore, the transplanting interval of rice shoot is stablized, and the transplanting precision of rice shoot improves.

For the present invention described in technical scheme 4, on the basis of the invention effect described in technical scheme 1 or 2, with the structure of low speed walking during by being formed as more than walking vehicle body 9 tilts predetermined angle, when concavo-convex field or curb etc. being walked in sloping floor or exist, if the left and right height of walking vehicle body produces difference, then make the speed of travel become low speed, this improves the safety of operation.

For the present invention described in technical scheme 5, on the basis of the invention effect described in technical scheme 1 or 2, when rice shoot detection part 46 detects that the surplus of rice shoot is less than predetermined value, the work of control actuator is independently made to stop making walking with the operating position of functional unit 38, by being formed as said structure, can prevent from operator from not awaring rice shoot use up and walking continued thus produces the interval not having transplanting rice shoot, therefore, without the need to carrying out the operation carrying out transplanting rice shoot with handwork, alleviate the labour of operator.

In addition, during rice shoot is supplemented to transplanting device 14 by adjunctive program person, walking vehicle body 9 is not walked, and therefore, adjunctive program person can carry out the adjunctive program of rice shoot with stable posture, improve the safety of operation.

And owing to can prevent walking vehicle body 9 from just to will begin in a minute walking after rice shoot just supplements, the safety of therefore operation improves further.

For the present invention described in technical scheme 6, on the basis of the invention effect described in technical scheme 1 or 2, when the working oil of Hyaulic infinite variable speed mechanism 33 is low temperature, sufficient driving force can be guaranteed by the rotating speed improving engine 23, therefore improve in the walking of sloping floor or wetland, thus operating efficiency improves.

Accompanying drawing explanation

Fig. 1 is the end view of seedling transplanting machine.

Fig. 2 is the vertical view of seedling transplanting machine.

(a) of Fig. 3 is the end view of the operating position of description operation parts.

(b) of Fig. 3 is the vertical view of the operating position of description operation parts.

Fig. 4 is the end view of the operating position that transplanting elevating lever is described.

Fig. 5 is the block diagram of the drive system that seedling transplanting machine is shown.

Fig. 6 is the flow chart that the action of seedling transplanting machine when rice shoot transplanting starts is shown.

Fig. 7 is the block diagram of the drive system of the embodiment 2 that seedling transplanting machine is shown.

Fig. 8 be the embodiment 2 of seedling transplanting machine is shown, for the flow chart of the action that prevents the transplanting caused by the abnormal vibrations of fertilizer apparatus bad.

Fig. 9 be the embodiment 2 of seedling transplanting machine is shown, for the flow chart of the action that prevents the fertilizer in fertilizer can from using up.

Figure 10 be the embodiment 2 of seedling transplanting machine is shown, when usual and thin planting time the position of functional unit and the speed of travel between the figure of relation.

Figure 11 is the figure of the significant points of the structure of the Rotating speed measring parts of rotating speed that the embodiment 2 of seedling transplanting machine is shown, that be provided with the power shaft for detecting transplanting clutch.

Figure 12 is the block diagram of the drive system of the embodiment 3 that seedling transplanting machine is shown.

Figure 13 be the embodiment 3 of seedling transplanting machine is shown, for preventing the flow chart of the action of movement on sloping floor.

Figure 14 is flow chart that the embodiment 3 of seedling transplanting machine is shown, that carry out action when filling the gaps with seedlings operation.

Figure 15 is that the embodiment 3 of seedling transplanting machine is shown, carry out action when filling the gaps with seedlings operation as switch of filling the gaps with seedlings in use rice shoot supplementary sensor flow chart.

Figure 16 is the block diagram of the drive system of the embodiment 4 that seedling transplanting machine is shown.

Figure 17 is the flow chart of action that the embodiment 4 of seedling transplanting machine is shown, that control based on the drive system of temperature.

Label declaration

4: rice shoot transplanting device;

9: walking vehicle body;

14: seeding transplantation apparatus;

16: fertilizer apparatus;

23: engine;

33: stepless speed change device;

38: functional unit;

46: rice shoot detection part;

50: control device;

62: Rotating speed measring parts;

63: fertilizer surplus detection part;

71: gradient detection part;

77: fuel temperature measurement parts.

Embodiment

Below, with reference to the accompanying drawings, the preferred embodiment of the present invention is described.Further, the present invention does not limit by the present embodiment.

(embodiment 1)

The end view of the seedling transplanting machine 8 of 8 row transplantings of ride-type that Fig. 1 shows embodiments of the present invention 1, that possess traveling vehicle, Fig. 2 shows vertical view.In this manual, about the directional reference of front and back and left and right, from driver's seat, with the direction of travel of walking vehicle body for benchmark comes before and after regulation and the benchmark of left and right.

In the front and back of walking vehicle body 9, be provided with pair of right and left front-wheel 10 and pair of right and left trailing wheel 11 as running wheel.On the top of the front side of this walking vehicle body 9, be provided with the manipulation device with control box 12 and direction of operating dish 13 etc., in addition, be provided with the rice shoot transplanting portion 15 that can be elevated at the rear of walking vehicle body 9.

In addition, fertilizer apparatus 16 is provided with at the rear portion of described walking vehicle body 9, the fertilizer being stored in fertilizer can 17 is successively sent with predetermined amount by each bar unloading part 18 by this fertilizer apparatus 16, and the fertilizer utilizing the pressure wind from fan blower 19 this to be sent by each bar transfer flexible pipe 20 is expelled to field to apply fertilizer from the outlet 21 being located at rice shoot transplanting portion 15.

The rear side of described manipulation device being provided with driver's seat 22, being equipped with the engine 23 of each several part for transferring a driving force to seedling transplanting machine 8 in the downside of this driver's seat 22.

Described direction of operating dish 13 is configured to via output shaft, steering arm and Steering Rod etc., the front-wheel 10 of left and right to be turned to according to operation of operating the rudder and operates the rudder, and described output shaft is rotated in deceleration from the steering spindle in steering column through turning in housing.

As shown in Figure 1, described rice shoot transplanting portion 15 is for being installed on the rear portion of car body 9 and the structure be elevated along with the expanding-contracting action of lifting hydraulic cylinder 26 via lifting linking member mechanism 25 in the mode that can be elevated, in the seedling transplanting machine 8 shown in Fig. 1, be formed as the structure making rice shoot transplanting portion 15 increase in the tensile side (drawing I Side) of lifting hydraulic cylinder 26.The transplanting elevating lever 27 for making rice shoot transplanting portion 15 rise and decline is provided with in the left side of manipulation device.

Further, possess in described rice shoot transplanting portion 15: the rice shoot mounting table 1 that left and right is reciprocal; The seeding transplantation apparatus 14 of every two behavior one group; While slide while carry out the pair of right and left side buoyancy aid (サ イ De フ ロ ー ト) 29 on whole ground on rice shoot transplanting face; And the middle part buoyancy aid of middle position (セ ン タ ー フ ロ ー ト) 30.

In the both sides of described seeding transplantation apparatus 14, rotary shell 44 is supported to rotate, and each rotary shell 44 axle carries two rice shoot transplanting devices 4, and this rice shoot transplanting device 4 has the implantation bar 28 on the rice shoot implantation surface, field of the amount of crawl one strain.In addition, rice shoot detection part 46 is provided with in every a line of rice shoot mounting table 1.If rice shoot detection part 46 is not loaded in the rice shoot pressing in rice shoot mounting table 1, then uses up by buzzer or lamp report rice shoot or need supplementary rice shoot at once.

Be formed as such structure: the driving force of described engine 23 is passed to the input belt wheel 34 of the stepless speed change device (HST) 33 of band hydraulic servo via band 32 from engine output pulley 31, drive hydraulic pump, variable-speed dynamic is driven to the power shaft of gearbox 36 by the output shaft of the hydraulic motor driven from the working oil that is recycled.

Be configured with the functional unit 38 stepless speed change device 33 being carried out to variable speed operation at described control box 12, and be configured to, by carrying out handover operation along the longitudinal direction to this functional unit 38, to switch moving forward and backward.In addition, the structure of the speed of travel selecting described walking vehicle body 9 with the operational ton of this functional unit 38 is accordingly formed as.In addition, the operator behaviour action switch 47 carrying out various operation for operator is configured with at described control box 12.

Described gearbox 36 is configured to the four wheel drive distributing transmission to front-wheel 10 and trailing wheel 11, and is formed as the structure of distributing transmission to side, rice shoot transplanting portion 15.The power be assigned to from described gearbox 36 is passed to the transplanting clutch 35 arranged at the rear of walking vehicle body 9 via operation power transmission shaft, and is passed to seeding transplantation apparatus 14 from this transplanting clutch 35 via transplanting power transmission shaft 39.

And, in described fertilizer apparatus 16, not power by being assigned to from gearbox 36 but driven the rotating shaft of fertilizer apparatus 16 by the driving force of other the output shaft from engine 23, by the driving of the rotating shaft of this fertilizer apparatus, unloading part 18 being worked.

And, as depicted in figs. 1 and 2, the seedling transplanting machine 8 of present embodiment 1 is formed as whole ground rotor 40 axle to be supported on the front side of each side buoyancy aid 29,29 and middle part buoyancy aid 30 to carry out the structure on whole ground to the surface, field of transplanting rice shoot, but transmission mechanism of the present invention is formed as the structure of carrying out transmission from the transmission case 41 of described trailing wheel 11 via power take-off 42.

And, as depicted in figs. 1 and 2, described rice shoot mounting table 1 is formed as such structure: forming rice shoot conveying plant 3 at the lower surface of the platform of each transplanting row in also configuring the rice shoot conveyer belt 43,43 of the left and right of the amount of a line in column-like manner, being sent by the blanket seedling (マ ッ ト seedling) being positioned in the top of this rice shoot conveying plant 3 to the direction of the rice shoot conveying end 2 of front side.In addition, be formed as such structure: rice shoot transplanting device 4 rotates along with transplanting track is drawn in the rotation of rotary shell 44, this rice shoot transplanting device 4 charging into and by capturing and locking blanket seedling during rice shoot conveying end 2, and turns to surface, field and carries out transplanting.

And be provided with transplanting spacing in the rows bar 24 in the side of described driver's seat 22, described transplanting spacing in the rows bar 24 is for changing the rotary speed of the rotary shell 44 driving described rice shoot transplanting device 4.In addition, in the left and right sides of the front side of described walking vehicle body 9, possess the preparation rice shoot mounting table 45,45 of the left and right of being supported by scaffold, described scaffold is fixed on walking vehicle body 9.

The end view of the operating position for illustration of described functional unit 38 has been shown in (a) of Fig. 3, vertical view from top view functional unit 38 has been shown in (b) of Fig. 3, further, figure 4 illustrates the end view of the operating position for illustration of transplanting elevating lever 27.In addition, Fig. 5 is the block diagram of the drive system of the seedling transplanting machine 8 that present embodiment 1 is shown.Further, in Figure 5, the bang path of power is shown with solid line, is shown in broken lines the bang path of control system.

As shown in (a) of Fig. 3 and (b) of Fig. 3, described functional unit 38 is configured to come and go freely along forward area F and back off area R in the N of speed change neutral position.

Gudgeon for changing the angle of inclination of the swash plate of described stepless speed change device 33 rotates by controlling actuator.Control device 50, by controlling this control actuator accordingly with the operating position of functional unit 38, changes the rotational angle (being called gudgeon aperture) of gudgeon.

When functional unit 38 is in neutral position N, described control device 50 makes the work of control actuator, to form the gudgeon aperture making the swash plate of described stepless speed change device 33 be in neutral position, when described functional unit 38 is in forward area F, described control device 50 makes the work of control actuator, to form the gudgeon aperture in the direction rotated to the direction that walking vehicle body 9 advances towards the trailing wheel 11 of the front-wheel 10 and left and right that make left and right, when described functional unit 38 is in back off area R, described control device 50 makes the work of control actuator, to form the gudgeon aperture in the direction rotated to the direction that walking vehicle body 9 retreats towards the trailing wheel 11 of the front-wheel 10 and left and right that make left and right.

In addition, to functional unit 38 described in the position operation left in F side, forward area and from neutral position N, described control device 50 just makes the work of control actuator, increases to acceleration side to make gudgeon aperture.Further, to functional unit 38 described in the position operation left in back off area R side and from neutral position N, described control device 50 just makes the work of control actuator, increases to acceleration side to make gudgeon aperture.Described functional unit 38 is configured to the operating position such as can selecting 8 gears at forward area F, can select the operating position of 3 gears at back off area R.

As shown in Figure 5, via fertilising clutch 51, the rotary power from engine 23 is passed to fertilising and drives rotating shaft, drive rotating shaft to drive unloading part 18 and the fan blower 19 of described fertilizer apparatus 16 by this fertilising.This fertilising clutch 51 is electronically controlled clutch, and its controlled device 50 controls.

As shown in Figure 4, when described transplanting elevating lever 27 is operated from " rising " position forwards, " stopping " position of the neutral condition stopped as lifting, rise in the rice shoot transplanting portion 15 being located at the rear portion of described walking vehicle body 9, when being operated from " stopping " position rearward " decline " position by described transplanting elevating lever 27, described rice shoot transplanting portion 15 drops to the position of rice shoot transplanting in field.When this rice shoot transplanting portion 15 is operated to " transplanting " position further from " decline " position, described transplanting clutch 35 is connected, and becomes the state that the power exported from stepless speed change device 33 is passed to seeding transplantation apparatus 14.When making described transplanting elevating lever 27 return to " decline " position from " transplanting " position, transplanting clutch 35 disconnects, become from stepless speed change device 33 export power not to seeding transplantation apparatus 14 transmit state.

Next, to the seedling transplanting machine 8 of present embodiment 1, rice shoot transplanting start time action be described.

Fig. 6 is flow chart that the seedling transplanting machine 8 of present embodiment 1 is shown, the action of rice shoot transplanting when starting.First, before beginning transplanting rice shoot, by the fertilizers input fertilizer can 17 of fertilising.Then, the driver occupying described driver's seat 22 by transplanting elevating lever 27 from " stopping " position to " decline ", " transplanting " position operates.

When described transplanting elevating lever 27 is operated to " transplanting " position, transplanting clutch 35 is connected.Then, when detecting that this transplanting clutch 35 connects (step S10), control box 12 showing transplanting clutch 35 and connects.

Described functional unit 38, after the described transplanting clutch 35 of confirmation is connected, carries out operating (step S11) from the neutral position N region F that marches forward by driver.

When transplanting clutch 35 is connected and functional unit 38 is operated to forward area F, described control device 50 makes fertilising clutch 51 connect, to pass through the driving force of the rotating shaft of the fertilizer apparatus of the drive force of described engine 23, the action of fertilizer apparatus 16 is started (step S12).When this fertilising clutch 51 is connected, unloading part 18 and fan blower 19 are driven by the rotating shaft of fertilizer apparatus and start action, and the fertilizer be stored in fertilizer can 17 is transferred to outlet 21 by transfer flexible pipe 20.

Time (step S13) described control device 50 measures when connecting from fertilising clutch 51, and control actuator is stopped until after a predetermined time (step S17), described control actuator rotates for making the gudgeon of stepless speed change device 33.This scheduled time from unloading part 18, rotates to fertilizer in fertilizer can 17 arrive evaluation time required for outlet 21 by transfer flexible pipe 20, and this scheduled time is the time being pre-set in control device 50.

Time when connecting from fertilising clutch 51 after a predetermined time, described control device 50 and the operating position of described functional unit 38 make control actuator work (step S14) accordingly.By the work of this control actuator, gudgeon aperture increases (step S15) to the direction corresponding with the direction of advance of walking vehicle body 9.

When gudgeon aperture increases, the front-wheel 10 of left and right and the trailing wheel 11 of left and right are rotated by the power from stepless speed change device 33, walking vehicle body 9 advances (step S16), meanwhile, seeding transplantation apparatus 14 is also started working by the power from stepless speed change device 33, thus starts the transplanting action of rice shoot.

In the seedling transplanting machine 8 of present embodiment 1, control device 50 carries out above-mentioned control, thus, when starting transplanting rice shoot, when being stored in the fertilizer in fertilizer can 17 and arriving outlet 21, make walking vehicle body 9 start to advance, and start to utilize seeding transplantation apparatus 14 to carry out rice shoot transplanting action.

Therefore, while beginning transplanting rice shoot, fertilizer is also expelled to field from described outlet 21, thus, the transplanting of rice shoot can be started, and the interval (between non-fertilization area) not being supplied to fertilizer can not be produced, therefore, while to be supplied to by fertilizer in same field while carry out the transplanting of rice shoot equably, can therefore prevent the depauperation of rice shoot.

(embodiment 2)

Embodiments of the present invention 2, the end view of the seedling transplanting machine of 8 row transplantings of the ride-type that possesses traveling vehicle is identical with the seedling transplanting machine 8 of embodiment 1 with vertical view, as depicted in figs. 1 and 2.In the seedling transplanting machine of present embodiment 2, the structure to described fertilizer apparatus 16 transmission of drive force is different from the seedling transplanting machine 8 of embodiment 1.

Shown in Fig. 7 is the block diagram of the drive system of the seedling transplanting machine 8 that present embodiment 2 is shown.In the figure 7, the bang path of power is shown with solid line, is shown in broken lines the bang path of control system.In the seedling transplanting machine of embodiment 1, be formed as following structure: utilize the rotary power from the engine 23 separated with stepless speed change device 33 to make fertilising drive rotating shaft to rotate to drive fertilizer apparatus 16, but in the seedling transplanting machine of present embodiment 2, be formed as following structure: make the driving force of fertilizer apparatus 16 identical with the driving force of seeding transplantation apparatus 14, utilize and export and the power distributed at gearbox 36 from stepless speed change device 33.

Therefore, although also operate the transplanting elevating lever 27 of present embodiment 2 as shown in Figure 4, but when the transplanting elevating lever 27 of present embodiment 2 is operated to " transplanting " position further from " decline " position, transplanting clutch 35 is connected, and the clutch 61 that applies fertilizer also is connected, thus become the state that the power exported from stepless speed change device 33 is passed to seeding transplantation apparatus 14 and fertilizer apparatus 16.And, when making transplanting elevating lever 27 return to " decline " position from " transplanting " position, transplanting clutch 35 and fertilising clutch 61 disconnect, thus become the power exported from stepless speed change device 33 and be neither passed to the state that seeding transplantation apparatus 14 is not passed to fertilizer apparatus 16 yet.

In present embodiment 2, possess Rotating speed measring parts 62 and fertilizer surplus detection part 63, described Rotating speed measring parts 62 are for detecting the rotating speed of the rotating shaft of fertilizer apparatus, and described fertilizer surplus detection part 63 reduces this situation for the amount detecting the fertilizer be accumulated in fertilizer can 17.

And, the control device 50 of present embodiment 2 controls the control actuator of stepless speed change device 33 according to the testing result of the operating position of described functional unit, the testing result of Rotating speed measring parts 62 and fertilizer surplus detection part 63, change the rotational angle of gudgeon thus.

The seedling transplanting machine 8 of present embodiment 2 is formed as the structure that the transplanting caused by the abnormal vibrations of fertilizer apparatus 16 can be prevented bad, is described its action.

Fig. 8 be the seedling transplanting machine 8 of present embodiment 2 is shown, for the flow chart of the action that prevents the transplanting caused by the abnormal vibrations of fertilizer apparatus 16 bad.

When described transplanting elevating lever 27 being operated to " transplanting " position and functional unit 38 being operated to forward area F from neutral position N, control device 50 makes the work of control actuator accordingly with the operating position of functional unit 38.By the work of this control actuator, body advances, and seeding transplantation apparatus 14 and fertilizer apparatus 16 work (step S20).

Described Rotating speed measring parts 62 detect the rotating speed (step S21) of the rotating shaft of the fertilizer apparatus driving fertilizer apparatus 16, and the testing result of these Rotating speed measring parts 62 is sent to control device 50.This control device 50 judges the rotating speed (step S22) of the rotating shaft of fertilizer apparatus according to the testing result received from Rotating speed measring parts 62.If fertilising drives the rotating speed of rotating shaft within predetermined rotating speed, then control device 50 makes fertilizer apparatus 16 proceed action (step S26) with maintaining the original state.

On the other hand, when the rotating speed of the rotating shaft of fertilizer apparatus exceedes predetermined rotating speed, control actuator is made to work (step S23).Now, described control device 50 makes the work of control actuator, reduces (step S24) to make gudgeon aperture to the direction of the speed reducing walking vehicle body 9.

Then, the rotary speed of the front-wheel 10 of left and right and the trailing wheel 11 of left and right is slowed down, and the speed of travel of walking vehicle body 9 is slack-off (step S25).Further, while the speed of travel of walking vehicle body 9 is slack-off, the rotating speed of the rotating shaft of the fertilizer apparatus of fertilizer apparatus 16 is driven also to reduce.

And, following example is illustrated: described control device 50 makes the work of control actuator accordingly with the rotating speed of the rotating shaft of fertilizer apparatus, reduce to make gudgeon aperture, but according to condition, also can be formed as following structure: described control device 50 makes the work of control actuator accordingly with the rotating speed of the rotating shaft of fertilizer apparatus, increase to the direction of the speed increasing walking vehicle body 9 to make gudgeon aperture.

The seedling transplanting machine of present embodiment 2 distributes the power exported from stepless speed change device 33 and this power is used for the driving of seeding transplantation apparatus 14 and fertilizer apparatus 16, therefore, drive the rotating speed of the transplanting power transmission shaft 39 of seeding transplantation apparatus 14 and drive the fertilising of fertilizer apparatus 16 to drive the rotating speed of rotating shaft all proportional with the speed of travel of body.

Therefore, when the rotating speed of described engine 23 rises, the rotating speed of the rotating shaft of fertilizer apparatus also rises.When the rotating speed of the rotating shaft of this fertilizer apparatus exceedes fixing rotating speed, can produce large vibration singularly, due to the impact of the vibration of this exception, the transplanting that rice shoot can occur is bad.

Above-mentioned control is carried out by the control device 50 of present embodiment 2, the rotating speed of the rotating shaft of fertilizer apparatus can be continued the rotating speed suppressed for there is not abnormal vibrations, therefore, prevent the generation that the transplanting of the rice shoot caused by abnormal vibrations is bad, improve the transplanting precision of rice shoot.Therefore, as above-mentioned predetermined rotating speed, as long as be set as the value less than the rotating speed that abnormal vibrations occurs.

The seedling transplanting machine of present embodiment 2 is formed as the structure that can prevent the fertilizer in described fertilizer can 17 from using up, and is described its action.Fig. 9 is the flow chart of control action that the seedling transplanting machine of present embodiment 2 is shown, that use up for the fertilizer prevented in fertilizer can 17.

When described transplanting elevating lever 27 being operated to " transplanting " position and functional unit 38 being operated to forward area F from neutral position N, described control device 50 makes the work of control actuator accordingly with the operating position of functional unit 38.By the work of this control actuator, body advances, and seeding transplantation apparatus 14 and fertilizer apparatus 16 work (step S30).

This testing result, when detecting that the fertilizer in fertilizer can 17 is used up or is reduced to not enough scheduled volume, is sent to control device 50 (step S31) by described fertilizer surplus detection part 63.

Described control device 50 judges whether to receive from fertilizer surplus detection part 63 testing result (step S32) that fertilizer uses up.Control device 50, when not receiving from fertilizer surplus detection part 63 testing result that fertilizer uses up, makes described fertilizer apparatus 16 proceed action (step S36) with maintaining the original state.

On the other hand, control device 50, when receiving the testing result that fertilizer is used up from described fertilizer surplus detection part 63, makes control actuator work (step S33).Now, control device 50 to control actuator control, with make gudgeon aperture to reduce walking vehicle body 9 speed direction or body is stopped direction reduction (step S34).Like this, the rotary speed of the front-wheel 10 of left and right and the trailing wheel 11 of left and right is slowed down or is stopped, and the speed of travel of walking vehicle body 9 is slack-off, or body stops (step S35).

If proceed transplanting operation under the state that the fertilizer in described fertilizer can 17 is used up, then can produce when between the non-fertilization area less than transplanting rice shoot when fertilising.

The control device 50 of present embodiment 2, by controlling as described above, can prevent from forgetting supply fertilizer, thus can prevent the generation between non-fertilization area.

In addition, also can be formed as following structure: the position being configured to detect transplanting spacing in the rows bar 24, control device 50 controls control actuator according to the testing result of the operating position of this transplanting spacing in the rows bar 24.

Such as, be formed as following structure: limit switch is set near transplanting spacing in the rows bar 24, can detect that transplanting spacing in the rows bar 24 is operated to " thin planting " this situation.Further, also can form following structure: when detecting that transplanting spacing in the rows bar 24 is operated to " thin planting " this situation, control device 50 makes the work of control actuator, reduces to make the gudgeon aperture consistent with the operating position of functional unit 38.

Figure 10 is the figure of the relation illustrated between position reduce the control example of gudgeon aperture when thin planting, functional unit 38 and the speed of travel of walking vehicle body 9.In Fig. 10, the relation between the position of the functional unit 38 when illustrating usual with solid line and the speed of a motor vehicle, is shown in broken lines the relation between the position of the functional unit 38 when transplanting spacing in the rows bar 24 being operated to " thin planting " and the speed of a motor vehicle.

" functional unit angle " in Figure 10 refers to the angle of functional unit 38 relative to neutral position N, " MAX " refers to that functional unit 38 is positioned at when leaving position farthest from neutral position N, namely, in (b) of Fig. 3, refer to when functional unit 38 is operated to the uppermost position of forward area F.

In the example depicted in fig. 10, time usual, speed of a motor vehicle when described functional unit 38 being operated to the fastest position is maximum 1.8 [m/s].On the other hand, when transplanting spacing in the rows bar 24 is operated to " thin planting ", speed of a motor vehicle when functional unit 38 being located at the fastest position is maximum 1.2 [m/s].In addition, even if change gudgeon aperture similarly in other position of this functional unit 38, with speed when making thin planting than slow time usual.

In general, the speed of travel of seedling transplanting machine adjustment walking vehicle body 9 and other responsiveness, to carry out walking at a high speed while carry out suitable rice shoot transplanting, if switch to the responsiveness that do not change other parts and the responsiveness only reducing seeding transplantation apparatus 14 to carry out the form of thin planting, then the action of seeding transplantation apparatus 14 can stop or shaking, cannot transplanting rice shoot well, thus the transplanting precision that there is rice shoot reduces such problem.

Therefore, as implied above, when switching to thin planting operation, by utilizing control device 50 to carry out the control making gudgeon aperture reduce, even if the transplanting interval of rice shoot expands, higher transplanting precision also can be guaranteed.

As shown in Figure 10, at each operating position of described functional unit 38, by carrying out the control reduced pro rata when making the speed of a motor vehicle than usual, even if driver also can feel to drive with identical with time usual when thin planting, therefore, it is possible to improve operability.

The structure being provided with the turn-sensitive device 64 of the rotating speed of power shaft for detecting transplanting clutch 35 shown in Figure 11.This turn-sensitive device 64 detects the rotating speed of the power shaft of transplanting clutch 35, and this testing result is sent to control device 50.When transplanting spacing in the rows bar 24 is operated to " thin planting " and the rotating speed of the power shaft of described transplanting clutch 35 exceedes predetermined rotating speed, this control device 50 makes the work of control actuator to reduce gudgeon aperture, to make the rotating speed of the power shaft of transplanting clutch 35 identical with the rotating speed set in control device 50 or be less than the rotating speed of setting.

When seedling transplanting machine 8 carries out thin planting, if the action of seeding transplantation apparatus 14 is too fast, then this seeding transplantation apparatus 14 can rock, so that leakage is got or leaks rice transplanting seedling, thus the transplanting precision that there is rice shoot reduces such problem.

Therefore, even if when thin planting operation, if the speed setting do not rocked by described seeding transplantation apparatus 14 is in described control device 50, then make the work of control actuator carry out restricted speed by control device 50, the maximum speed in the scope can not rocked with seeding transplantation apparatus 14 carries out the transplanting of rice shoot.

And, be formed as utilizing described turn-sensitive device 64 to detect the structure of the rotating speed of the power shaft of transplanting clutch 35 at this, but also can be formed as following structure: the rotating speed detecting the output shaft of described transplanting clutch 35, and make the work of control actuator according to this testing result.

(embodiment 3)

Embodiments of the present invention 3, the end view of the seedling transplanting machine of 8 row transplantings of the ride-type that possesses traveling vehicle is identical with the seedling transplanting machine 8 of embodiment 1 with vertical view, as depicted in figs. 1 and 2.Figure 12 is the block diagram of the drive system of the seedling transplanting machine 8 that present embodiment 3 is shown.In fig. 12, the bang path of power is shown with solid line, is shown in broken lines the bang path of control system.

Compared with the structure of the embodiment 2 shown in Fig. 7, possesses gradient detection part 71 different with the rotating speed this point that turn-sensitive device 72 this point and described control device 50 can control engine 23.Further, control device 50 is equivalent to an example of control part of the present invention.In addition, turn-sensitive device 72 is equivalent to an example of rotation of wheel test section of the present invention.

Described gradient detection part 71 is sensors of the gradient of the fore-and-aft direction detecting walking vehicle body 9, and testing result is sent to control device 50 by it.

The control device 50 of present embodiment 3 controls the control actuator of stepless speed change device 33 according to the testing result of the operating position of functional unit 38 and gradient detection part 71, thus, change the rotational angle of gudgeon, and Variation control is carried out to the rotating speed of the engine control actuator of the rotating speed of control engine 23.

When detecting that walking vehicle body 9 tilts to more than predetermined value in the longitudinal direction according to the testing result of gradient detection part 71, described control device 50 makes the work of control actuator, to reduce gudgeon aperture, make the speed of a motor vehicle slack-off, further, improve the rotating speed of described engine 23, driving force is increased.Further, when angle of inclination is less than predetermined value, control device 50 does not make the work of control actuator.

Such as, when seedling transplanting machine 8 crosses ridge or seedling transplanting machine 8 carries out handling etc. relative to conveying arrangements such as trucies, if the inclination of fore-and-aft direction detected by gradient detection part 71, then carry out following control: make the speed of travel slack-off, and driving force is increased.

Described control device 50 carries out making the speed of travel slack-off and the control that the rotating speed of engine 23 is increased, and makes hoofing part power increase thus, therefore, even if also can easily advance when angle of inclination becomes large, operating efficiency is improved.Such as, the walking when crossing ridge or loading and unloading relative to conveying arrangements such as trucies is stablized.

In addition, described turn-sensitive device 72 is the sensors detected the rotation of trailing wheel 11.When seedling transplanting machine 8 is positioned at the ground of inclination, described control device 50 carries out according to the testing result of turn-sensitive device 72 control preventing seedling transplanting machine 8 movement because of inclination.

The seedling transplanting machine 8 of present embodiment 3 shown in Figure 13, for preventing the flow chart of the action of movement on sloping floor.Described control device 50 confirms the operating position (step S40) of functional unit 38, when this functional unit 38 is in neutral position N, described control device 50 receives the testing result from turn-sensitive device 72 and carries out judging (step S41, S42).When described functional unit 38 is in the position beyond the N of neutral position, the testing result of turn-sensitive device 72 is not judged.

When being judged as that described trailing wheel 11 stops, returning step S40, during described functional unit 38 is continued in neutral position N, continuing to judge the testing result from turn-sensitive device 72.

In step S42, when being judged as that described trailing wheel 11 rotates in the reverse direction, control device 50 makes control actuator work (step S43), changes gudgeon aperture (step S44) to the direction making walking vehicle body 9 advance.

Otherwise in step S42, when being judged as that described trailing wheel 11 forward direction rotates, control device 50 makes control actuator work (step S45), and gudgeon aperture (step S46) is changed in the direction retreated to making body.

Described trailing wheel 11 rotate in the reverse direction refer to such as tilt ground on seedling transplanting machine 8 rear portion towards tilt below in, by the control making control device 50 carry out step S43 and step S44, seedling transplanting machine 8 is advanced, prevents it from retreating towards the below tilted mobile.

Described trailing wheel 11 forward direction rotates and refers to that the front portion of such as seedling transplanting machine 8 on the ground tilted is towards when the below tilted, by the control making control device 50 carry out step S45 and step S46, seedling transplanting machine 8 is retreated, prevents it from advancing towards the below tilted mobile.

And, at this, be formed as the structure that described turn-sensitive device 72 detects the rotation of trailing wheel 11, but as the seedling transplanting machine 8 of present embodiment, when front-wheel 10 is also driving wheel, even if be formed as turn-sensitive device 72 detect the structure of the rotation of front-wheel 10 and be formed as carrying out based on this testing result the structure that controls, also identical effect can be obtained.

In addition, in foregoing, using the sensor of described gradient detection part 71 as the gradient of the fore-and-aft direction of detection body, but also can be formed as following such structure: using the sensor of described gradient detection part 71 as the gradient of the left and right directions of detection body, control device 50 controls according to the testing result of this gradient detection part 71.

Such as, be formed as following structure: when the gradient detection part 71 of the gradient detecting left and right directions detects the gradient of more than predetermined gradient, described control device 50 makes the work of control actuator to change gudgeon aperture, relation during to make the pass between the angle of described functional unit 38 and the speed of a motor vehicle be the thin planting of such as Figure 10.

Described gradient detection part 71 detects that the gradient of more than predetermined gradient refers to, such as, in seedling transplanting machine 8 is walked in the inclined plane that easily side or right side side tilt left.Now, by making control device 50 carry out above-mentioned control, the speed of a motor vehicle formed as being realized by functional unit 38 changes less low-speed mode, thus driver can make seedling transplanting machine 8 walk at this place safety.

In addition, when the rice shoot of described rice shoot mounting table 1 is not enough with the rice shoot of preparation rice shoot mounting table 45, make walking vehicle body 9 stop walking and carrying out filling the gaps with seedlings operation, but also can form following structure: arrange switch of filling the gaps with seedlings, control device 50 detects the operation of this switch of filling the gaps with seedlings and carries out following control.This switch of filling the gaps with seedlings is the switch for operator operation, is the switch opened (ON) when starting to fill the gaps with seedlings operation, closing (OFF) when restarting transplanting operation filling the gaps with seedlings the end of job.

Figure 14 is flow chart that the seedling transplanting machine 8 of present embodiment 3 is shown, that carry out action when filling the gaps with seedlings operation.Step S50 shown in Figure 14 ~ step S54 show operation of filling the gaps with seedlings start before action, step S55 ~ step S57 shows the action after the end of job of filling the gaps with seedlings.

When starting to fill the gaps with seedlings operation, driver makes body stop, and switching manipulation of filling the gaps with seedlings is for opening (step S50).Described control device 50 detect fill the gaps with seedlings switch opens time, confirm the position (step S51) of functional unit 38 now.

When described functional unit 38 is in the position beyond the N of neutral position, control device 50 makes control actuator work (step S52), stepless speed change device 33 is switched to the gudgeon aperture (step S53) that walking vehicle body 9 is stopped.That is, described control device 50 carries out making stepless speed change device 33 become the control of neutral condition.

Then, during switch opens of filling the gaps with seedlings, control device 50 carries out such control: even if functional unit 38 is operated to the position beyond the N of neutral position, also independently makes stepless speed change device 33 maintain a neutral stance state (step S54) with the position of functional unit 38.

Then, fill the gaps with seedlings after the end of job, switch of filling the gaps with seedlings will be carried out handover operation from open mode to closed condition by operator, but now, the operating position of control device 50 to described functional unit 38 confirms (step S55), when this functional unit 38 is in neutral position N, can be closed condition (step S56) by switching over of filling the gaps with seedlings.

On the other hand, when switching over of filling the gaps with seedlings being operating as closedown, if described functional unit 38 is in the operating position beyond the N of neutral position, then described control device 50 carries out limiting the control (step S57) of switch towards closed condition handover operation of filling the gaps with seedlings.That is, before described functional unit 38 is operated to neutral position N by operator, switch of filling the gaps with seedlings cannot switch to cut out.

In existing seedling transplanting machine, when operation of filling the gaps with seedlings etc., if functional unit 38 is operated to forward area F or back off area R from neutral position N by mistake, then walking vehicle body 9 is at the unconscious moment setting in motion of operator, thus there is operator and cannot to carry out efficiently filling the gaps with seedlings the such problem of operation.

For the seedling transplanting machine 8 of present embodiment 3, the control shown in above-mentioned steps S54 is carried out by making described control device 50, even if carried out maloperation when operation of filling the gaps with seedlings etc. to functional unit 38, walking vehicle body 9 also can not advance or retreat, and operator can carry out filling the gaps with seedlings the adjunctive program etc. of operation or fertilizer efficiently.

In addition, the control of above-mentioned steps S55 ~ step S57 is carried out by making described control device 50, even if described functional unit 38 is operated to the position beyond the N of neutral position when by switching over of filling the gaps with seedlings being closedown, walking vehicle body 9 also can not advance suddenly or retreat, and the safety of operation is improved.

And, although be illustrated with the example structure of present embodiment 3 added in the structure of the seedling transplanting machine 8 of the embodiment 2 shown in Fig. 7, the structure of present embodiment 3 also can be applied in the structure of the seedling transplanting machine 8 of the embodiment 1 shown in Fig. 5.

In addition, supplement detection part as above-mentioned switch of filling the gaps with seedlings, i.e. rice shoot of the present invention, also can utilize existing rice shoot detection part 46.Figure 15 be illustrate utilize existing rice shoot detection part 46 as fill the gaps with seedlings switch when, the flow chart that carries out action when filling the gaps with seedlings operation.Described rice shoot detection part 46, when detecting that the rice shoot be loaded in described multirow rice shoot mounting table 1 is used up or is less than predetermined amount, makes the annunciator work such as buzzer.

When being formed as the structure of described rice shoot detection part 46 as switch of filling the gaps with seedlings, be configured to, the rice shoot being loaded into described rice shoot mounting table 1 is consumed in field by seeding transplantation apparatus 14 transplanting, when the amount of rice shoot is less than predetermined amount, rice shoot detection part 46 is not pressed by rice shoot and closes, thus makes annunciator work (step S70).

Now, judge whether described functional unit 38 is neutral (step S71), if this functional unit 38 is not in neutral position, then described control device 50 makes control actuator work (step S72), moves (step S73) to stopping side to make the gudgeon of described stepless speed change device 33.In described functional unit 38 is immediately, stepless speed change device 33 neutrality (step S74) is maintained with maintaining the original state.

Thus, the state that the walking becoming described walking vehicle body 9 stops, therefore, operator can carry out the operation rice shoot being loaded into preparation rice shoot mounting table 45 being loaded rice shoot mounting table 1, and do not affect by the vibration of body or acutely rocking of the concavo-convex causing of field, therefore, it is possible to raising operating efficiency, and improve the safety of operation.Further, due to can with seeding transplantation apparatus 14 can not miss rice shoot or transplanting posture unruffled posture rice shoot is placed in rice shoot mounting table 1, therefore, it is possible to improve the transplanting precision of rice shoot.

After the adjunctive program of rice shoot terminates, rice shoot detection part 46 is pressed by rice shoot and opens (step S75).Until all switch opens of filling the gaps with seedlings, even if carry out the operation of any gear from neutral position N forward direction or direction of retreat to described functional unit 38, described control actuator does not work, and carries out the control (step S79) that retentive control device 50 is neutral condition.When all switches of filling the gaps with seedlings all are opened, judge whether described functional unit 38 is in neutral condition (step S76), if be judged as it not being neutral, then until this functional unit 38 becomes neutral condition, control actuator is not worked, carry out keeping described stepless speed change device 33 to be the control of neutral condition.

When described functional unit 38 moves to neutral position, described control actuator work (step S77), carries out the control (step S78) of the aperture increasing gudgeon according to the direction of operating of this functional unit 38.

And, if described functional unit 38 is not positioned at neutral position predetermined time (about more than 2 ~ 3 seconds) continuously, even if then functional unit 38 advanced position or going-back position are moved, the work of control actuator is not made yet, if form structure as described above, then when making the heading retrogressing of functional unit 38 the past or marching forward mobile from retrogressing, can prevent judgement from becoming neutral condition and making the work of control actuator, therefore, it is possible to prevent body from walking in the adjunctive program of rice shoot and cause the supplementary posture of rice shoot chaotic.

In addition, the aperture of gudgeon when being closed by switch of filling the gaps with seedlings is stored in control device 50, when fill the gaps with seedlings switch opens and functional unit 38 are positioned at neutral position, be automatically restored to the aperture of the gudgeon that this control device 50 stores, if be formed as structure as described above, then the rice shoot speed of travel of front and back of supplementing is constant, thus the transplanting position of rice shoot or the degree of depth can be made to stablize.

(embodiment 4)

Embodiments of the present invention 4, the end view of the seedling transplanting machine of 8 row interpolations of the ride-type that possesses traveling vehicle is identical with the seedling transplanting machine 8 of embodiment 1 with vertical view, as depicted in figs. 1 and 2.

Figure 16 is the block diagram of the drive system of the seedling transplanting machine 8 that present embodiment 4 is shown.In figure 16, the bang path of power is shown with solid line, is shown in broken lines the bang path of control system.

The control device 50 of present embodiment 4 possesses the function of the rotating speed controlling engine 23.The seedling transplanting machine of present embodiment 4 possesses: the turn-sensitive device 76 detecting the rotating speed of engine 23; With the fuel temperature measurement parts 77 of the temperature of the working oil of measurement stepless speed change device 33.The temperature of the working oil that the rotating speed of the engine 23 detected by this turn-sensitive device 76 and fuel temperature measurement parts 77 are measured is sent to control device 50.

Figure 17 is flow chart that the seedling transplanting machine of present embodiment 4 is shown, that control based on the drive system of temperature.When described engine 23 and stepless speed change device 33 work, turn-sensitive device 76 detects the rotating speed of engine 23, the rotating speed that this turn-sensitive device 76 detects is sent to control device 50 (step S60), in addition, fuel temperature measurement parts 77 measure the temperature of the working oil of stepless speed change device 33 and the temperature this measured is sent to control device 50 (step S61).

Described control device 50 judges that the temperature of the working oil of stepless speed change device 33 is whether more than predetermined temperature (step S62).When the temperature of the working oil of this stepless speed change device 33 is more than predetermined temperature, control device 50 does not carry out Correction and Control especially to drive system.

On the other hand, when the temperature of the working oil of described stepless speed change device 33 is lower than predetermined temperature, described control device 50 drives engine control actuator, carries out making the control (step S63) that the rotating speed of described engine 23 rises.Now, carry out the aperture of stepless speed change device 33 and the aperture of proportioning valve are not changed, only make the control that the rotating speed of this engine 23 rises.

When the temperature of the working oil of described stepless speed change device 33 is lower, the viscosity of working oil uprises, and therefore, compared with the rotating speed of engine 23, cannot be exported fully from this stepless speed change device 33, there is the problem that cannot obtain necessary driving force.

In present embodiment 4, when the temperature of working oil is lower than predetermined temperature, by the control carrying out making the rotating speed of described engine 23 to rise, make to send oil mass to increase, thus the output of stepless speed change device 33 is increased.Now, the aperture of stepless speed change device 33 and the aperture of proportioning valve are not changed, and only makes the rotating speed of engine 23 increase, therefore, it is possible to the driving force of the trailing wheel 11 of front-wheel 10 about making driving and left and right increases.

Therefore, preferably, in step S62, carry out the predetermined temperature judged as described control device 50, be set as minimum temperature can guarantee the driving force of sufficient stepless speed change device 33 compared with the rotating speed of engine 23, working oil.

And, be formed as following structure: after the control (step S63) carrying out making the rotating speed of described engine 23 to rise, if output sufficient driving force from stepless speed change device 33 compared with the rotating speed of this engine 23, then rotating speed when described control device 50 makes the rotating speed of engine 23 be back to usual control.

Utilizability in industry

Seedling transplanting machine of the present invention due to can from transplanting rice shoot time fertilizer is supplied to field, therefore, can be applied to ride-type seedling transplanting machine etc. possesses fertilizer apparatus seedling transplanting machine etc. at the rear portion of the walking vehicle body with running gear, the utilizability in industry is very high.

Claims (6)

1. a seedling transplanting machine, is characterized in that,

Described seedling transplanting machine is configured to, walking vehicle body (9) is provided with engine (23) and stepless speed change device (33), transplanting device (14) and fertilizer apparatus (16) is provided with at the rear portion of this walking vehicle body (9), be provided with the functional unit (38) this walking vehicle body (9) being carried out to stopping and forward operation, and described seedling transplanting machine is provided with control actuator, described control actuator changes the gear ratio of this stepless speed change device (33) according to the operation of described functional unit (38)

Stopping and the forward operation of transplanting device (14) and fertilizer apparatus (16) and this functional unit (38) stop in linkage and work,

When carrying out forward operation to described functional unit (38), start from the output shaft of described engine (23) to described fertilizer apparatus (16) transmission of drive force,

Described seedling transplanting machine is provided with control device (50), when from starting to drive this fertilizer apparatus (16) after a predetermined time, described control device (50) makes to make the work of control actuator accordingly with the operating position of described functional unit (38), utilize the power from described stepless speed change device (33), make described walking vehicle body (9) start walking of advancing, and start to drive transplanting device (14).

2. seedling transplanting machine according to claim 1, is characterized in that,

In described seedling transplanting machine, be provided with the Rotating speed measring parts (62) of the rotating speed of the driving shaft for detecting described fertilizer apparatus (16), and be provided with the fertilizer surplus detection part (63) of the surplus of the fertilizer for detecting described fertilizer apparatus (16)

Described control device (50) is configured to, when these Rotating speed measring parts (62) detect the rotating speed of more than predetermined value or when fertilizer surplus detection part (63) detects the surplus of the fertilizer being less than predetermined value, described control device (50) makes the work of described control actuator slow down to make described walking vehicle body (9).

3. seedling transplanting machine according to claim 1 and 2, is characterized in that,

In described seedling transplanting machine, be provided with the spacing in the rows handover operation parts (24) that the transplanting interval for the rice shoot to the transplanting of described transplanting device (14) institute regulates, and the interval alteration detection parts be provided with for detecting the operation of these spacing in the rows handover operation parts (24)

Described control device (50) is configured to, when these interval alteration detection parts detect described spacing in the rows handover operation parts (24) be operated to make the transplanting interval of rice shoot become large side time, described control device (50) makes the work of described control actuator slow down to make described walking vehicle body (9).

4. seedling transplanting machine according to claim 1 and 2, is characterized in that,

In described seedling transplanting machine, be provided with the gradient detection part (71) of the gradient for detecting described walking vehicle body (9), described control device (50) is configured to, when this gradient detection part (71) detects the gradient of more than predetermined value, described control device (50) makes the work of described control actuator slow down to make described walking vehicle body (9).

5. seedling transplanting machine according to claim 1 and 2, is characterized in that,

In described seedling transplanting machine, be provided with rice shoot detection part (46), described rice shoot detection part (46) is less than this situation of predetermined value for the surplus of the rice shoot detecting described transplanting device (14),

Described control device (50) is configured to, when this rice shoot detection part (46) detects the surplus of the rice shoot being less than predetermined value, walking stop position is operated to even without by described functional unit (38), described control device (50) also makes the work of described control actuator stop making walking

Afterwards, even if described rice shoot detection part (46) no longer detects the surplus of the rice shoot being less than predetermined value, if described functional unit (38) is not operated to walking stop position, also walking is limited.

6. seedling transplanting machine according to claim 1 and 2, is characterized in that,

In described seedling transplanting machine, be provided with the engine control actuator of the rotating speed for controlling this engine (23),

In described seedling transplanting machine, be provided with the fuel temperature measurement parts (77) of the temperature of the working oil for measuring described stepless speed change device (33), described control device (50) is configured to, when the temperature of the working oil that these fuel temperature measurement parts (77) detect is less than predetermined value, described control device (50) makes the work of described engine control actuator to increase the rotating speed of engine (23).