CN1375182A - Rice transplanter - Google Patents

Abstract

To provide a rice transplanter having a simplified power transmission structure to a driving structure for longitudinal feed, and a transplanting structure in the rice transplanter capable of forming a seedling-transporting device into a housed posture by dividing the device into right and left two parts. A feed case 19 for receiving the power transmission from a motor part is installed in one of the right and left seedling-transplanting parts, and a driving shaft 63 for longitudinal feed is extended from the feed case 19 over the right and left seedling-transplanting parts. The other part of the seedling-transplanting parts is constituted so that the power is transfered from the driving shaft 63 to the seedling-transplanting parts.

Description

Rice transplanter

Technical field

The present invention relates to rice transplanter.More particularly, the invention relates to and have engine and the rice transplanter of accepting from the power of planting of this engine of planting the seedling device, above-mentioned plant the seedling device by about plant seedling portion and constitute, simultaneously, its structure is, switch to plant about this seedling portion for its seedling mounting surface towards the interconnective work posture in body rear and above-mentioned about plant seedling portion separately, its seedling mounting surface is towards the storage posture of body left and right directions, and, plant seedling portion about above-mentioned and have planting mechanism, and send the vertical transport driving that is positioned in the seedling on the described seedling mounting surface to this planting mechanism.

Background technology

Rice transplanter in the past with above-mentioned formation, the known technology that has Japanese kokai publication hei 10-178831 communique for example to be put down in writing.This rice transplanter all is provided with planting mechanism and seedling carrying base portion owing to plant on each of seedling portion about it, therefore, and the structure that must employing transmission mechanism can be separated with respect to these machines.

Therefore, in the rice transplanter of above-mentioned example in the past, about it, plant the service tank that is respectively arranged with in the seedling portion planting planting mechanism set on each of seedling portion and vertical transport driving etc. about power supply.And, dispose the relay distribution case that set motive power portion uses with respect to left and right sides service tank distributed power from the body that travels, and, also be provided with the gangbar mechanism of frame on this relay distribution case and left and right sides service tank, left and right sides gangbar mechanism can freely load and unload with respect to the relay distribution case, when planting seedling portion separately, unload gangbar mechanism from the relaying distributor box.

In addition, in the structure that has the multiple tracks planting mechanism, the number that is arranged on about the number of respectively planting the planting mechanism in the seedling portion is set for is identical.

But, above-mentioned situation about in the past constituting, must service tank all be set to each portion of planting of the left and right sides, therefore, structure large-scaleization, simultaneously, component number is various, and, owing to separation, link position are two positions, so the burden of operation that separates in order to switch to the storage posture and the operation that connects in order to switch to work posture is all very big.

Therefore, the objective of the invention is, in order to address the above problem, provide and plant separation, the connection needed time of operation of seedling portion about a kind of can the minimizing and reduce manufacturing cost, plant the work posture of seedling portion and the rice transplanter of storage posture about being easy to simultaneously set.

Summary of the invention

In order to finish above-mentioned purpose, rice transplanter of the present invention is as technical scheme 1 is put down in writing, and a side plants seedling portion and is provided with the service tank of acceptance from the power of planting of engine,

The vertical feed drive axle that is provided with vertical transport driving extends in the seedling portion of planting from this service tank to the opposing party.And,

This vertical feed drive axle comprise be arranged on a side plant first driving shaft in the seedling portion, be arranged on the opposing party plant second driving shaft in the seedling portion and be arranged on first driving shaft and second driving shaft between make the interrupted attaching parts of two driving shafts,

Under above-mentioned work posture,, through the attaching parts and second driving shaft, can pass to the plant setter structure of the opposing party's the seedling portion of planting from first driving shaft from the power of service tank.

The structure of above feature can obtain following action effect.

In the present invention, since only about a side the seedling portion of planting service tank is set, the power transmission shaft of planting the setting of seedling portion about process is defined as vertical conveying axis, and therefore, switching to the attaching parts that must separate when storing posture only need be in a vertically position setting of conveying axis.Must remove the operation position that is connected when switching work posture and storing posture only is a position, therefore, has alleviated homework burden.

Owing to alleviated homework burden, about plant seedling portion from work posture to the switching that stores posture, and from store posture to the switching of work posture also can be smoothly, promptly carry out, therefore, can use the segmenting structure of planting seedling portion effectively.

Since only about a side the seedling portion of planting service tank be set get final product, so the component number minimizing, the weight of planting the seedling device further alleviates, and manufacturing cost is more cheap, has obtained effect of the present invention therefrom.

Except that above-mentioned formation, as technical scheme 2 records, if about plant between the seedling portion and set above-mentioned plant setter structure with different numbers, the side that the number of planting mechanism is many plants seedling portion and is provided with above-mentioned service tank and with the reciprocal lateral transfer driving mechanism of the above-mentioned seedling carrying base of driving portion of certain stroke, then has the following advantages.

Since about plant the number difference of the plant setter structure between the seedling portion, thereby the size about the seedling carrying base portion that lateral transfer drives is also inequality.Here, by service tank and lateral transfer driving mechanism being set in the seedling portion in many planting of number of planting, can directly drive big seedling carrying base portion, making the seedling carrying base portion that is driven by this big seedling carrying base portion tractive is the little seedling portion of planting of number of planting, therefore, can successfully carry out lateral transfer.

In addition, in the rice transplanter of above-mentioned example in the past, the number of planting mechanism about plant and set identical number between the seedling portion for.Thereby, for example plant with under the situation of rice transplanter in 10 roads, will cut apart with every odd number trace (5 road).Therefore, in respectively planting seedling portion, on whole transmission cases of planting two planting mechanisms can not be set, needing to be provided with one at least can only be at the transmission case of planting of one-sided installation planting mechanism.Therefore, the transmission case of planting is needed is provided with number many (in this example in the past, the situation of planting with rice transplanter in 10 roads needs 6).

By comparison, in the present invention, as technical scheme 3 was put down in writing, the above-mentioned seedling device of planting was divided into even number road unit respectively and plants seedling portion about above-mentioned, is respectively planting in the seedling portion, and per 2 roads are provided with 1 transmission case of planting.

In this structure, plant with under the situation of rice transplanter in for example 10 roads, to plant seedling portion with one and be divided into 6 roads, another is planted seedling portion and is divided into 4 roads.Plant in the seedling portion about alienable, with per 2 road units 1 transmission case of planting is set respectively, totally two planting mechanisms can be installed in the both sides of each transmission case.Therefore, any one is planted in the seedling portion, and the transmission case of respectively planting can be taken on the task of planting in the even number road, does not need to be provided with the transmission case of planting that the planting mechanism that accounts for 1 road only is installed.Therefore, can reduce the number (planting and just can satisfy with following 5 of the situation of rice transplanter in 10 roads) of the transmission case of planting, further reduce the component number of this part, further alleviate the weight of planting the seedling device, reduce its manufacturing cost.

Except said structure, as technical scheme 4 was put down in writing, above-mentioned attaching parts were bonded together first driving shaft and second driving shaft with certain rotatable phase, and this structure can obtain following effects and effect.

That is to say, because vertically the feed drive axle can only be bonded with each other with certain rotatable phase when setting work posture for, therefore, plant the difference of the time that seedling portion vertically carries about can avoiding, and prevent the defective brought when planting the seedling device adopts segmenting structure.In addition, not need about plant and be provided for supplying with the service tank of power to vertical feed drive axle in the seedling portion respectively, formation single structure, that more simplify can be provided.

Further feature of the present invention, formation and resulting thus effect and effect, advantage hereinafter will be more readily apparent from reference to the description that accompanying drawing carried out by reading.

Brief description of drawings

Fig. 1 is the unitary side view of rice transplanter.

Fig. 2 is the end view of planting the seedling device.

Fig. 3 is the plane of planting the seedling device.

Fig. 4 represent whole ground hull configuring condition plant the seedling setting plane.

Fig. 5 is the seedling carrying base plane of the configuration of expression seedling sensor for residual amount.

Fig. 6 is the concise and to the point cross section of seedling carrying base of the configuration of expression mono-directional overrun clutch and Ge Dao clutch.

Fig. 7 is the schematic plan view of the rice transplanter of the work posture before posture that the seedling device is planted in expression is switched.

Fig. 8 is the schematic plan view that posture that the seedling device is planted in expression is switched the rice transplanter of midvoyage condition.

Fig. 9 is that the schematic plan view that the seedling device switches to the rice transplanter of the state that stores posture is planted in expression.

Figure 10 is the plane that seedling device drive mechanism is planted in expression.

Figure 11 is the major part cross section of the drive mechanism of expression service tank.

Figure 12 is the major part cross section that the posture switching midvoyage condition of seedling device is planted in expression.

Figure 13 is that expression switches to the cross section plane of planting the seedling device that stores under the posture.

Figure 14 is the major part cross sectional plane figure of expression to the transmission mechanism of planting mechanism.

Figure 15 (a) represents to keep to plant the local section end view that the seedling device switches to the whole ground hull that stores posture height and position afterwards, (b) is the local section end view of keeping the whole ground hull of minimum down position by the block effect.

Figure 16 is the plane that expression is arranged on the installment state of the impact absorbing member on the chain.

Figure 17 is the rearview that the posture switching mechanism of seedling device is planted in expression.

Figure 18 is the end view of the detection architecture of expression grounding sensor.

Figure 19 is the rearview of the detection architecture of expression grounding sensor.

Figure 20 (a) is the expression end view of the preceding state of locking of locking member down, (b) is the expression end view of the locking state of locking member down.

Figure 21 is the front view that the preceding state of locking of locking member is gone up in expression.

Figure 22 is the front view that the locking state of locking member is gone up in expression.

Figure 23 is the expression rearview of locking member up and down.

Figure 24 (a) is the coupling mechanism of the vertical feed drive axle of expression and the action plane figure that is connected the separating mechanism connection status of fender bracket, (b) is the plane that switches to the state above-mentioned coupling mechanism before of (a).

Figure 25 is the end view corresponding with Figure 24.

Figure 26 (a) is the rearview of the connection status of expression fender bracket, (b) is the rearview of the released state of expression fender bracket.

Figure 27 is and the corresponding plane of Figure 26 (a).

Figure 28 is the plane of expression fender bracket and various retaining mechanisms.

To be expression switch to plane when storing posture from Figure 28 to Figure 29.

Figure 30 (a) is the active side view of expression work posture retaining mechanism, (b) is the plane of the position in the operational guidance parts of the work posture retaining mechanism under the posture of expression Figure 30 (a).

Figure 31 (a) is that expression makes locking effect sheet make the end view of the work posture retaining mechanism of time spent from Figure 30, (b) is the plane of the position in the operational guidance parts of work posture retaining mechanism under the posture of expression Figure 31 (a).

Figure 32 is the end view that expression stores the posture retaining mechanism.

Figure 33 is the block diagram that expression control constitutes.

The working of an invention form

Fig. 1 shows the whole side of rice transplanter, the formation of this rice transplanter is, at the travel rear portion of body 1 of riding formula, liftably be connected with the plantation of 10 roads with planting seedling device 2 by linkage 4 with respect to the body 1 that travels, and, also be equipped with 10 roads fertilising fertilizer apparatus 5, linkage 4 is driven and swing up and down by hydraulic cylinder 3.

Travel body 1 to use power for travelling from the power that is equipped on its anterior engine 6, and this power passed to left and right sides front-wheel 9, trailing wheel 10 and left and right sides auxiliary wheel 10A by hydrostatic formula electrodeless variable-speed device 7 and gear type speed change gear 8 etc., thus, can obtain sufficient thrust corresponding to 10 roads plantations.As shown in Figure 3, left and right sides front-wheel 9 and trailing wheel 10 separate given compartment of terrain in the mode of crossing over 4 road seedlings along left and right directions and are setting, and left and right sides auxiliary wheel 10A is arranged side by side inboard at left and right sides trailing wheel 10 in the mode of crossing over 2 road seedlings.

As shown in Figure 1, Drive Section 15 is taken in central portion formation at the body 1 that travels, this is taken Drive Section 15 and has the steering wheel 11 that is connected on the left and right sides front-wheel 9, the gear lever 12 that is used for the hydrostatic formula electrodeless variable-speed of variable speed operation device 7, is used for the negative variable speed bar 13 of variable speed operation gear type speed change gear 8 and driver's seat 14 etc.

Aforementioned link mechanism 4 by about go up connecting rod 4A, left and right sides lower link 4B and longitudinal rod 4C that each free end of this connecting rod 4A, 4B is linked together constitutes, about go up the rear portion that connecting rod 4A can be connected the body 1 that travels around transverse axis heart P1 with swinging up and down, left and right sides lower link 4B can be connected the rear portion of the body 1 that travels around transverse axis heart P2 with swinging up and down.As shown in figure 17, the bottom of longitudinal rod 4C forms in this wise, can support axis of rolling 16A freely to rotate around axle center, front and back P3, and this axis of rolling 16A is from planting seedling device 2 to extend towards the posture of front and back, thus, planting seedling device 2 can roll around travel relatively body 1 of axle center, front and back P3.

Shown in Fig. 1～6, plant seedling device 2 and comprise: link 16 with above-mentioned axis of rolling 16A; Can be connected the swing span 17 at the both ends, the left and right sides of this link 16 around vertical axis P4 with freely swinging; The free-ended square tube type support 18 of each swing span 17 about can being connected around vertical axis P5 with freely swinging; Be installed in a service tank 19 on the support 18; With given between left and right every 5 transmission cases 20 of planting that are connected on the left and right sides support 18; Axle is supported on the rotary planting mechanism 21 of the left and right sides, rear portion of the transmission case 20 of respectively planting; The seedling carrying base 22 that can move back and forth to left and right direction with respect to each planting mechanism 21 with certain stroke; The vertical transport driving 55 of the seedling (not shown) that is positioned in the matt-like on this seedling carrying base 22 to the outlet dispatch of planting mechanism 21; And the place of in advance each planting mechanism 21 being planted put in order 4 whole ground hulls 23 on ground etc., and formation can be carried out the structure of planting in 10 roads thus.

As Fig. 2 and shown in Figure 4, hull fulcrum shaft 24 can have been supported freely to rotate around the transverse axis heart P6 in its axle center in the preceding bottom of the transmission case 20 of respectively planting, and this hull fulcrum shaft 24 is by constituting with the pipe parts that laterally set up across the mode of the transmission case 20 preceding bottoms of planting.The rear portion of corresponding whole ground hull 23 can be connected the far-end that is rearward extended a plurality of supporting arms 25 that are provided with by this hull fulcrum shaft 24 around transversal line P7 with swinging up and down.

Can support to left and right direction on the leading truck 26 of seedling carrying base 22 with moving back and forth, have when can lead operation these depth of planting adjusting rod 27 engagings are remained on the locational guide plate 28 of desired procedure around the depth of planting adjusting rod 27 of axle center, front and back P8 swinging operation and to this depth of planting adjusting rod 27.

Above-mentioned depth of planting adjusting rod 27 is connected on the hull fulcrum shaft 24 by connecting rod 27A, therefore, during around axle center, front and back P8 swinging operation depth of planting adjusting rod 27, hull fulcrum shaft 24 is rotated around its axle center P6, change the height and position of each whole ground hull 23 with respect to each planting mechanism 21, and each planting mechanism 21 planting the seedling degree of depth and also can regulate integratedly to the field, garden.

That is to say, by means of each whole ground hull 23, hull fulcrum shaft 24, a plurality of supporting arm 25, depth of planting adjusting rod 27, guide plate 28, connecting rod 27A, be configured for regulating the depth of planting governor motion A that plants the seedling degree of depth to the field, garden, thus, can be with the suitable depth of planting of having considered field, garden earth hardness etc. planting seedling to the field, garden.

Below, the formation of planting seedling device 2 is described.As Fig. 7 and shown in Figure 9, plant that seedling device 2 is planted the 2A of seedling portion by a left side that is divided into the 4 road seedlings of can planting and two parts that the right side of 6 road seedlings of can planting plants the 2B of seedling portion constitute.By being divided into two parts with even number road unit, also can be divided into the 22A of left and right sides seedling carrying base portion, 22B to seedling carrying base 22 planting seedling device 2.Like this, by being divided into left and right sides two parts planting seedling device 2, plant about changeable one-tenth work posture (Fig. 7) that the 2A of seedling portion, 2B connect with the front and back posture that can plant and by plant about being divided into the 2A of seedling portion, 2B, with can reduce its to amount that the horizontal foreign side of body stretches out towards about the folding storage posture (Fig. 9) of posture.That is to say, under work posture, plant seedling device 2 about plant the 2A of seedling portion, 2B and link together, its seedling mounting surface 22a (Fig. 5) is towards the body rear.On the other hand, storing under the posture, plant the 2A of seedling portion, 2B about being divided into, 22a is towards the body left and right directions and towards foreign side for its seedling mounting surface.Therefore, on road surface for example, travel or during by carryings such as lorries, switch under the storage posture, can alleviate the trouble and worry that contacts with other article planting seedling device 2.

The following describes and be used to cut apart the switching mechanism of planting seedling device 2.As Fig. 7～Figure 13, Figure 16 and shown in Figure 17, can freely roll above the above-mentioned link 16 that connects with linkage 4 with respect to the lifting of planting seedling device 2, be connected with and center on the swing span 17 that vertical axis P5 freely swings relatively, simultaneously, below the leading section of swing span 17, support 18 can be installed relatively swingingly.On swing span 17, be provided with chain mechanism (example of interlinked mechanism) 85 along its length, drive support 18, can carry out the switching of posture by chain mechanism 85.

Switch when planting the posture of seedling device 2, catch a side's seedling carrying base 22A of portion or a 22B, drive a left side respectively and plant the 2A of seedling portion and the right side and plant the 2B of seedling portion and make its swing.But, replace this manual operation, also can use motor etc. to carry out the switching of posture.

The detailed formation of the above-mentioned chain mechanism 85 of description.With reference to Figure 16 and Figure 17, uprightly on the connecting portion of the close end of swing span 17 and link 16 be provided with back shaft 85A, the lower end of this back shaft 85A is fixed on the link 16.The upper end of back shaft 85A is outstanding above swing span 17, is fixed with sprocket wheel (example of guide way) 86 un-rotatably in this upper end.On the other hand, on the connecting portion of the distal portion of swing span 17 and support 18, can rotate relatively freely the ground pivotal support transmission rotational axis 87 is arranged, on the outstanding part above swing span 17 of the upper end of transmission rotational axis 87, the drive sprocket (example of driven in rotation body) 88 that freely rotates with transmission rotational axis 87 one is installed.The number of teeth of drive sprocket 88 is set at half of sprocket wheel 86 numbers of teeth, thus, can be in the opposite direction and with respect to the swing speed of swing span 17 with at double rotary speed wobble drive support 18.Transmission rotational axis 87 extends downwardly into support 18 places, and its lower end is fixed on the support 18 by carriage 18C.

In such formation,, under work posture shown in Figure 7, at first must carry out to cut apart the preparatory function that this plants seedling device 2 cutting apart the occasion of planting seedling device 2.

That is to say, though it is not shown in the figures, but, can set for: in case make the end of any one lateral transfer stroke of the close integratedly left and right sides of the 22A of left and right sides seedling carrying base portion, 22B by lateral transfer driving mechanism 57, from this deviation position, just can remove the connection of the locking member up and down one example of retaining mechanism (connect) 72,73 of the 22A of left and right sides seedling carrying base portion, 22B and power drive system, operating system, make it be in separable state, afterwards, must operate the 22A of seedling carrying base portion, a 22B from other direction towards departure direction.In addition, the lock release operation must separate the operation of the connection handle 81 of fender bracket 79.Thus, when fender bracket 79 separates, can carry out the separation of the coupling mechanism (coupling mechanism, an example of attaching parts) 29 of vertical feed drive axle 63.In addition, the releasing operation by locking latch for printed circuit 76 can disconnect the contact of link 16 and support 18.Operation about the retaining mechanism that comprises above retaining mechanism will be described in detail below.

After above preparatory function finishes, catch the side of the 22A of left and right sides seedling carrying base portion, 22B, when carrying out opening operation, as Fig. 8, Figure 12, Figure 16 and shown in Figure 17, swing span 17 is that the center begins to rotate with respect to link 16 with back shaft 85A.Simultaneously, support 18 is that rotate with respect to swing span 17 at the center with transmission rotational axis 87 also.The following describes in this case drive form and direction of rotation.That is to say, when swing span 17 rotates with respect to link 16, because sprocket wheel 86 is fixing with respect to link 16, so driving-chain 89 is center revolution (revolve) with drive sprocket 88 with sprocket wheel 86.Along with this revolution, drive sprocket 88 relatively rotates with respect to driving-chain 89.Rotation by drive sprocket 88, be fixed on support 18 on the transmission rotational axis 87 towards the direction of rotation rotation opposite, become and the posture that switches to swing span 17 almost parallels under the posture of body fore-and-aft direction towards the body fore-and-aft direction with swing span 17.

As shown in figure 16, on driving-chain 89, the centre position about it is provided with impact absorbing member 89A, 89A such as spring.By means of this impact absorbing member 89A, 89A, big and the caused impact of inertia of the 22A of seedling carrying base portion of constant weight arranged during stopping in the time of to absorb the startup that is used for posture changing or after the posture changing because of structure.In illustrated form, though utilized driving-chain 89.But, also can use transmission to replace this driving-chain 89 with cable.Impact absorbing member is set in this transmission on cable.

As mentioned below, be used for also relating in transmission system of seedling carrying base 22 and plant setter structure 21 etc. plant the content that seedling device 2 is divided into two-part formation.

At first, the structure of seedling carrying base 22 is for can two being divided into the left seedling carrying base 22A of portion and the right side plants the seedling platform 22B of portion, the left side seedling carrying base 22A of portion marks off 4 road seedling mounting surface 22a by totally 5 the partition wall 22b that reach road, left and right sides end between each road, and the right seedling carrying base 22B of portion marks off 6 road seedling mounting surface 22a by totally 7 the partition wall 22b that reach road, left and right sides end between each road.

On the other hand, Fig. 3, Fig. 6 and Figure 10～14 show the transmission system of planting mechanism 21.That is to say, in rice transplanter of the present invention, only plant the service tank 19 of an acceptance from the power of planting of the engine 6 of the body 1 that travels is set on the 2B of seedling portion on the many right sides of road number.From the operation power of gear type speed change gear 8, the first transmission system B by compositions such as the power transmission shaft 30 and first clutches 31 passes to this service tank 19.Output from service tank 19, the power train that at first is delivered to the driving mechanism 57 of relative seedling carrying base 22 lateral transfer is unified to the power drive system of vertical transport driving 55, by the power drive system difference power of this vertical transport driving 55, take out the power of planting.

The power drive system of the driving mechanism 57 of lateral transfer constitutes in the following manner.That is to say, as Fig. 3, Figure 10 and shown in Figure 11, on the extension of lateral transfer axle 61, along the shift motion length formation looping snail spin slot 61a of seedling carrying base 22.Lateral transfer axle 61 rotates around horizontal axle center P11 by means of the power that transmits by the lateral transfer speed change gear 58 that is arranged in the service tank 19.Rotate by means of this, looping snail spin slot 61a engages guiding to the moving body 62 that is connected on the right seedling carrying base 22B of portion, thus, and with certain stroke lateral transfer and back and forth drive seedling carrying base 22 to left and right direction.In addition, the left seedling carrying base 22A of portion mechanically links together with the right seedling carrying base 22B of portion by bindiny mechanism described later, laterally moves integratedly.

About the power drive system of each vertical transport driving 55 adopt and followingly to constitute.As Fig. 3, Fig. 6, Figure 10, shown in Figure 11, since vertically carry with on the extension of driving shaft 63 from the seedling that the power of service tank 19 rotates around transverse axis heart P12, across a pair of motion arm 64 that is arranged at intervals with of the shift motion part of seedling carrying base 22.About being disposed at, on horizontal vertical conveying axis 65 of each 22A of seedling carrying base portion, 22B, being equipped with and having the mono-directional overrun clutch 66 that is operated arm 66a.During seedling carrying base 22 each arrival shift motion ends, alternately operate this by motion arm 64 and be operated arm 66a, this is operated arm 66a upwards lifts.Obtain thus intermittence driving force by seedling vertically carry with each road clutch 68 pass to about vertically on the conveying axis 65 on free chimeric each axle 67 of totally 5, thus, in the bottom of each seedling mounting surface 22a, drive per 4 each traveling beds 69 that is connected with each axle 67 off and on given pitch.

As Fig. 3, Figure 10～shown in Figure 12, in service tank 19, in be equipped with and vertically carry first chain type transmission mechanism 54 to what transmit, and identical operation passed to plant second chain type transmission mechanism 56 of usefulness driving shaft 53 of right side with power by first 19A to seedling with transmission of power from the operation of gear type speed change gear 8 by its first 19A with driving shaft 63.Driving shaft 63 is divided into two parts in the center, the left and right sides of the body 1 that travels, and is made up of with left side driving shaft (the being equivalent to second driving shaft) 63A that this right side driving shaft 63B is connected from right side driving shaft (the being equivalent to first driving shaft) 63B of the transmission of power of service tank 19 with by engagement type coupling mechanism 29 acceptance.

This engagement type coupling mechanism 29 engages pawl 29A by the slidingtype towards the fastening state application of force and constitutes with respect to the fixation side engaging pawl 29B that driving shaft 63A can not be installed with slidably, and the structures of two engaging pawl 29A, 29B are only to finish the engaging of engagement in the occasion of phase place unanimity.That is to say that cooperate on pawl 29A, the 29B at two 3 claws are set respectively, these claws are formed by different phase places, have only a rotatable phase to be in engagement.

As Fig. 3 and shown in Figure 10, on the driving shaft 63A of left side, be provided with the transmission case 92 that separates with service tank 19, power on the left of this transmission case 92 is delivered to when engagement type coupling mechanism 29 is engaged on the driving shaft 63A passes to the left side by the 3rd chain type transmission mechanism 91 and plants with driving shaft 53, and gives the transmission system of planting transmission of power thus.

As shown in figure 14, be delivered to about each side plant with the operation on the driving shaft 53 with power by interior be loaded on the chain type transmission mechanism 59 in the transmission case 20 of respectively planting and plant pass to each planting mechanism 21 with each road clutch 60 etc.

More than, the structure that rice transplanter of the present invention adopts is, is divided into and can carries out a left side that 4 roads plant seedling and plant the 2A of seedling portion and can carry out the right side that 6 roads plant seedling and plant two parts of the 2B of seedling portion planting seedling device 2.Thus, plant transmission case 20, in be loaded on chain type transmission mechanism 59 in this transmission case 20 of planting, plant and vertically carry with each road clutch 68 etc. with each road clutch 60 and seedling, with being divided into the situation that 6 above-mentioned inscapes must on average be set under the situation of two-part structure with per 5 roads and comparing in the past, the present invention only need on average be provided with 5 above-mentioned inscapes, has reduced inscape.Therefore, reached the purpose of simplifying inscape and reducing manufacturing cost.

In addition, because about respectively plant and have vertical transport driving 55 on the 2A of seedling portion, the 2B, therefore, as only on the left and right sides either party 2A of the seedling portion of planting, 2B, vertical transport driving 55 being set, when the posture of seedling device 2 is planted in switching, do not need to make vertical conveying axis 65 of respectively planting on the 2A of seedling portion, the 2B about being arranged on to work intermittently.Therefore, simplify the posture of planting seedling device 2 and switched to such an extent that operate, simultaneously, helped realizing the automation of this posture handover operation.

And, in the posture switching construction of planting seedling device 2 in the past that does not show in the drawings, the distributing means for power supply of respectively planting the 2A of seedling portion, 2B about a power distribution that comes from the body 1 that travels is given is being installed on the link 16 of planting seedling device 2, this distributing means for power supply and about respectively plant between the service tank 19 of the 2A of seedling portion, 2B and be respectively arranged with clutch, when thus, the posture of planting seedling device 2 being switched from travel body 1 to about plant the 2A of seedling portion, 2B transmission system carry out work intermittently.Therefore, plant seedling device 2 from storing posture when work posture switches at handle, because the planting mechanism 21 of respectively planting about being installed on the 2A of seedling portion, the 2B is the work same period, so, about each clutch need connect with the state of rotatable phase unanimity, must carry out posture to the work posture of planting seedling device 2 and switch, the result operates pretty troublesome.

And in this form of implementation, as indicated above, gear type speed change gear 8 and right planting on the first transmission system B that is provided with on the service tank 19 of the 2B of seedling portion one side in whole body 1 one sides of travelling are equipped with first clutch 31, and, vertically on the feed drive axle 63 coupling mechanism 29 is being installed, therefore, when the posture of planting seedling device 2 is switched from travel body 1 side to about respectively plant the 2A of seedling portion, 2B each transmission system B can work intermittently.The result, plant seedling device 2 from storing posture when work posture switches at handle, the planting mechanism 21 of respectively planting about being installed on the 2A of seedling portion, the 2B is the same period, only just connecting under the state of the rotatable phase unanimity of coupling mechanism 29 has been enough to, and first clutch 31 can irrespectively be connected with rotatable phase.Thereby, not only simplified and planted seedling device 2 operation when switching work postures, simultaneously, also help planting the automation of the posture handover operation of seedling device 2.

In addition, plant and vertically carry with each road clutch 68 with each road clutch 60 and seedling, 5 action bars by means of outside among the corresponding with it figure that connects of difference, switch to off-state from connection status, thus, can stop transmission with 2 road units to each planting mechanism 21 and traveling bed 69, thereby, can be discontented with the multiple tracks in 10 roads and plant.

As shown in Figure 6, amount to 2 mono-directional overrun clutchs 66 and 5 seedlings of planting about being installed on the 2A of seedling portion, the 2B are vertically carried with each road clutch 68 and are adapted to such structure, mono-directional overrun clutch 66 is positioned at the lower position from the 3rd the next door 22b in the both ends, the left and right sides of seedling carrying base 22, and, each road clutch 68 be positioned at the both ends, the left and right sides that plant seedling platform 22 next door 22b the below and from both ends, the left and right sides each lower position of the 5th next door 22b.In addition, below the 5th the next door 22b of left end of seedling carrying base 22 (being the branch cut node of seedling carrying base 22), be equipped with and belong to a left side and plant each road clutch 68 of the 2A of seedling portion and belong to two clutches 68 that the right side plants each road clutch 68 of the 2B of seedling portion.

Therefore, owing to switching under the state of work posture planting seedling device 2, seedling vertically carry with mono-directional overrun clutch 66 and seedling vertically carry with each road clutch 68 can be in be positioned at from the center, the left and right sides that plants seedling device 2 to about impartial position, therefore, can make the left and right sides balance of planting seedling device 2 of the state that switches to work posture keep good state.

As indicated above, when seedling carrying base 22 arrives the shift motion ends, be installed in seedling and vertically carry with a motion arm in a pair of motion arm 64 on the driving shaft 63 and vertically carry the arm 66a that is operated upwards to boost with mono-directional overrun clutch 66 seedling.Therefore, be equipped with under the situation of above-mentioned mono-directional overrun clutch 66 at the two ends, the left and right sides of seedling carrying base 22, when the shift motion end of one side about seedling carrying base 22 arrival, the opposing party's seedling is vertically carried with motion arm 64 major parts of driving shaft 63 and foreign side's side and is exposed, and the trouble and worry that contacts with other article and cause damage is arranged.

Therefore, in this form of implementation, be equipped with seedling from the below of the 3rd the next door 22b at the two ends, the left and right sides of seedling carrying base 22 and vertically carry with mono-directional overrun clutch 66.The result who does like this is, even when the shift motion end of one side about seedling carrying base 22 arrival, still can avoid the opposing party's seedling vertically to carry motion arm 64 to expose, avoid it to contact and cause damage, accomplish to prevent trouble before it happens with other article with driving shaft 63 and foreign side's side.

As shown in Figure 3, in 5 were planted transmission case 20,2 transmission cases 20 of planting in its left side rearward extended setting from left side support 18, and 3 transmission cases 20 of planting on its right side rearward extend setting from right side support 18.

As shown in Figure 4, the structure of hull fulcrum shaft 24 is for can two being divided into left fulcrum axial region 24A and right fulcrum axial region 24B, and left fulcrum axial region 24A is used to support the whole ground hull 23 in 2 in left side, and right fulcrum axial region 24B is used to support the whole ground hull 23 on 2 on right side.

As Fig. 2 and shown in Figure 4, because left fulcrum axial region 24A is connected with depth of planting adjusting rod 27, therefore, switching under the storage posture state planting seedling device 2, by engaging of depth of planting adjusting rod 27 and guide plate 28, can maintain predefined height and position to 2 whole ground, the left side hull of supporting by left fulcrum axial region 24A 23 in each whole ground hull 23.On the other hand, as shown in figure 15, by be installed on the right fulcrum axial region 24B block 24c with belong to the contacting of the transmission case 20 of planting that the right side plants the 2B of seedling portion, can maintain 2 whole ground, right side hull 23 27 that do not get in touch with depth of planting adjusting rod, that support by right fulcrum axial region 24B and the depth of planting occurs and regulate the minimum down position of shallow state.

As Fig. 4 and shown in Figure 17, hull fulcrum shaft 24 is provided with left and right sides attaching parts 24a, 24b, this left and right sides attaching parts 24a, 24b are along with planting carry out of seedling device 2 to the posture change action that stores posture, allow hull fulcrum shaft 24 to be divided into two parts of left fulcrum axial region 24A and right fulcrum axial region 24B, and, switch to the posture of work posture along with planting seedling device 2, left and right sides fulcrum axial region 24A, 24B can linked together under the state of its axle center P6 one rotation.Be installed in the engaging space that the left attaching parts 24a on the left fulcrum axial region 24A has the trench section shape, and be provided with the oriented plate that opens wide with connecting outwardly by this engaging steric direction.Being installed in right attaching parts 24b on the right fulcrum axial region 24B can insert, engage the engaging space of left attaching parts 24a by forming the engaging of ring-type forms with round bar.

As shown in figure 15, be divided under the state of storing state planting seedling device 2, remove the contact of right fulcrum axial region 24B and depth of planting adjusting rod 27 (Fig. 2), right fulcrum axial region 24B is switched under the state of the most shallow state that occurs that the depth of planting regulates, and keep this state by means of block 24c.On the other hand, when depth of planting adjusting rod 27 is operated the operating position of the most shallow state that occurs that the depth of planting regulates, the phase place unanimity of left and right sides attaching parts 24a, 24b.So, switch to the posture of work posture along with planting seedling device 2, will engage and insert adapted space with round bar, form engagement connection, along with planting seedling device 2 to the posture switching that stores posture and break away from.

As shown in Figures 3 and 4, in 4 whole ground hulls 23, be provided in 2 whole ground hulls 23 of planting seedling device about 2 central sides, adopted the big first whole ground hull 23A that roughly makes the ∏ word shape of width that can carry out whole ground, 3 roads, and be provided in 2 whole ground hulls 23 of two ends, the left and right sides one side of planting seedling device 2, adopted the second whole ground hull 23B that makes the T word shape that can carry out whole ground, 2 roads.

Therefore, owing to can put in order ground to the wheel trajectories of the left and right sides front-wheel 9 that is provided in the position of crossing over 4 road seedlings and trailing wheel 10 and the wheel trajectories that is provided in the auxiliary wheel 10A of the position of crossing over 2 road seedlings, what therefore, can prevent effectively that wheel trajectories that these wheels 9,10,10A form from causing falls the generation of seedling or the confusion of the posture of planting.

In addition, because the first whole ground hull 23A than whole ground, 3 roads usefulness presses the second whole ground hull 23B of whole ground, 2 few roads of earth usefulness to be provided in two ends, the left and right sides one side of planting seedling device 2, therefore, the situation that is provided in two ends, the left and right sides one side of planting seedling device 2 with the first whole ground hull 23A of whole ground, 3 roads usefulness is compared, and the whole ground hull 23 that can reduce two ends, the left and right sides one side is to the influence to the seedling of having planted of the earth of the horizontal foreign side of body extrusion.Thereby, can prevent the lodging of the seedling of having planted that the pressure earth of whole ground hull 23 causes or the confusion of the posture of planting effectively.

Shown in Fig. 7～19, about on each second whole ground hull 23B, be connected with the hull sensor of forming by rotary electric tentiometer etc. (example of lifting detecting unit) 39, this hull sensor 39 when travelling along with the operation of planting travel and the second whole ground hull 23B that changes is a ground pressure around the angle that swings up and down of transverse axis heart P7, and it is detected.By means of the second whole ground hull 23B and the hull sensor 39 that is attached thereto, be configured for detecting the sensor hull S of ground pressure change.Each sensor hull S forms control device 40 outputs from its detected value to the microprocessor that carries on the body 1 that travelling.Here, the second whole ground hull 23B is called grounding sensor.

As shown in figure 33, on control device 40, be provided with automatic lifting control module 40A and rolling control module 40B as control program, above-mentioned automatic lifting control module 40A basis is from the mean value of the ground pressure of left and right sides sensor hull S, drive to switch and drive the solenoid electric valve 41 of oil phase for the flow regime of hydraulic cylinder 3, thus, control the lifting of planting seedling device 2 in the mode in the blind area width that this mean value is contained in predefined desired value; Above-mentioned rolling control module 40B is according to poor from the ground pressure of left and right sides sensor hull S, the rolling motor 42 of drive installation on the longitudinal rod 4C of linkage 4, thus, control the rolling of planting seedling device 2 in the mode that this ground pressure difference is contained in the given range.Control by this automatic lifting control module 40A and rolling control module 40B drives, and can not only be made the fluctuations of field, garden soil face stable, also can make seedling stably plant into the operation of planting of the desirable degree of depth.

In addition, because the second whole ground hull 23B that not influenced by wheel trajectories constitutes sensor hull S, therefore, can under high accuracy, carry out the lifting control of planting seedling device 2 or the control of rolling according to its ground pressure, and, also can under high accuracy, finish with the planting of seedling that the depth of planting of hope is carried out.

Below, the detection architecture of the second whole ground hull 23B about detailed description.Shown in Figure 17～19, the upright portal 32 that is provided with lengthwise on the leading section of the second whole ground hull 23B, simultaneously, carriage 33 is under the state of the inner space that connects portal 32, preceding face forward by support 18 is stretched out, 34 leading sections that are supported on this carriage 33 of cantilever of easy on and off swing.

On the other hand, from the rear angled surfaces 35A of support 18 upright stands 35 of establishing, by carriage 36 hull sensor 39 is installed, in addition, in the back side of the carriage 36 that this hull sensor 39 an is installed side, be provided with and detect the detection arm 37 that drives this hull sensor 39.

As Figure 17～shown in Figure 19, be hung with the release wire 38 that is used to detect the second whole ground hull 23B and detection arm 37, above carriage 36 that hull sensor S uses, be provided with outside recipient 35B.Simultaneously, the top of portal 32 is also used as outside recipient 32A, be inserted with inner wire 38B within the external metallization silk 38A that hangs by two outside recipient 35B, 32A, two front ends of the inner wire 38B that extends out from outside recipient 32A, 35B are connected with an end of detection arm 37 and swing cantilever 34 respectively.

Further, transmission arm 70 extends to portal 32 from the hull fulcrum shaft 24 with the rotation of depth of planting adjusting rod 27 one, simultaneously, with connecting rod 71 leading section of this transmission arm 70 with swing cantilever 34 is linked together.

In above structure, under the state that depth of planting adjusting rod 27 is in a fixed position, the action of swing cantilever 37 is fixed, therefore, driving up and down by the second whole ground hull 23B can make portal 32 move up and down, and detects with the outer end that discharges wire 38 to move up and down.On the other hand, because swing cantilever 34 is in stationary state, so the interval L1 that swing cantilever 34 and being used to is installed between the top of portal 32 of outer end changes.Along with this change, the hull sensor also needs change with the interval L2 between the outer end of detection arm 37 and its top, and therefore, the result of change is swingingly to drive detection arm 37.

The second whole ground hull 23B swingingly moves upward, makes when L1 becomes big at interval, detection arm 37 swings, and making at interval, L2 diminishes.On the contrary, the second whole ground hull 23B swings downwards, makes when L1 diminishes at interval, detection arm 37 swings, and making at interval, L2 increases.

Below, the situation that the depth of planting is regulated is described.During operation depth of planting adjusting rod 27 (Fig. 2), just swing of supporting arm 25, the second whole ground hull 23B towards upper and lower to a direction move, change is with respect to the relative altitude of the transmission case 20 of planting.Transmission arm 70 is regulated operations linkage and swing simultaneously with this, and by the swing of this transmission arm 70, swing cantilever 34 is through bar 71, around the intermediate support swing with respect to the carriage 33 that extends out from support 18.Thus, can and the installation end of the inner wire 38B of the top that moves up and down the portal 32 that interlock and one move up and down of the second whole ground hull 23B and swing cantilever 34 between interval L1 maintain on certain degree.Because this interval L1 is certain, therefore, can not change a reference value ground switching depth of planting of the second whole ground hull 23.

As Fig. 1 and shown in Figure 33, the rolling control of planting seedling device 2 that the lifting control of planting seedling device 2 that the automatic lifting control 40A of unit carries out and the control 40B of unit that rolls carry out is that the clutch lever 43 of planting in the right side side that is equipped on driver's seat 14 is set under the situation of position of " automatically " and implements.In addition, being used to implement the setting of the desired value that the automatic lifting control 40A of unit carried out when planting the lifting control of seedling device 2, is to carry out with the manual operation of setting apparatus 44, and this setting apparatus 44 is made up of the rotary electric tentiometer that is installed on the body 1 that travels.

The bar sensor 43A that detects its operating position, this detected value is formed to the rotary electric tentiometer of control device 40 outputs is installed on the clutch lever 43 of planting.On control device 40, have the manual 40C of control unit as control program, this manually the 40C of the unit of control according to this detected value control plant seedling device 2 lifting and in be loaded on the driving of the clutch 45 of planting in the gear type speed change gear 8.

Manually the control 40C of unit switches the driving condition of solenoid electric valve 41, so that planting clutch lever 43 when " rising " position operation, plants seedling device 2 and rises, when " decline " position operation, plant seedling device 2 and descend, when " neutrality " position operation, plant seedling device 2 and stop lifting.In addition, manually control 40C of unit switches and is used for the plant driving condition of clutch motor 46 of clutch 45 of intermittent operation, so that planting clutch lever 43 when " leading to " position operation of planting, plant seedling device 2 action of planting, when planting " breaking " position operation, plant seedling device 2 action that stops to plant.

Further, manually the control 40C of unit is being set in the clutch lever 43 of planting under the situation of " automatically " position, according to from first switch 48 that is used to detect the operation that is configured in steering wheel 11 bottom-right neutral recovery types pressure descending operation bars 47 and the detection signal of second switch 49, switch the driving condition of solenoid electric valve 41 and clutch motor 46.

Particularly, be positioned at the state of the lifting position of leaving the height and position of planting planting seedling device 2, swinging operation downwards by action bars 47, from first switch, 48 output 0N signals the time, manually control module 40C switches the driving condition of solenoid electric valve 41, makes to plant seedling device 2 and drop to the height and position of planting.The above-mentioned height and position of planting is that the mean value from the ground pressure of left and right sides sensor hull S is contained in by the position in the blind area width of setting apparatus 44 target value set.

Be positioned under the state of the height and position of planting planting seedling device 2, swinging operation upward by action bars 47, from second switch 49 output ON signals the time, manually control module 40C switches the driving condition of solenoid electric valve 41, makes to plant seedling device 2 and rise to predefined upper limit position.On the other hand, plant seedling device 2 and be positioned under the state of the height and position of planting, by the swinging operation downwards of action bars 47, in case during from first switch 48 output ON signals, manually control module 40C is with regard to the driving condition of switch clutch motor 46, makes to plant seedling device 2 action of planting.

Plant seedling device 2 plant the action state under, when in case the swinging operation upward by action bars 47 makes second switch 49 output ON signals, manually control module 40C is with regard to the driving condition of switch clutch motor 46 and solenoid electric valve 41, make and plant seedling device 2 action that stops to plant, rise to upper limit position.

So, along with based on ON signal from first switch 48, utilize the control action of manual control module 40C to make and plant the carrying out that seedling device 2 arrives the action of the height and position of planting, can implement automatic lifting control module 40A to the lifting control of planting seedling device 2 and rolling control module 40B to planting the rolling control of seedling device 2.In addition, based on ON signal from second switch 49, can stop to implement automatic lifting control module 40A to the lifting control of planting seedling device 2 and rolling control module 40B to planting the rolling control of seedling device 2.

As Fig. 5, shown in Figure 33, on seedling carrying base 22, be divided among the next door 22b of 10 road seedling mounting surface 22a on each next door 22b of position, road, be equipped with and be used for detecting the seedling sensor for residual amount 50 of seedling from the minimizing of the specified rate of mounting on seedling mounting surface 22a.

Control device 40 drives alarm device 52 based on the 0N signal from each seedling sensor for residual amount 50.This alarm device 52 is formed by being installed in the buzzer taken on the operating portion 15 and bulb or liquid crystal panel or acoustical generator.Thus, can report the seedling that is positioned on any seedling mounting surface 22a situation to the driver less than specified rate.

As Fig. 3 and shown in Figure 10, switching under the state of work posture planting seedling device 2, service tank 19 is setting with the position that is positioned at the substantial middle of planting seedling device 2.

That is to say that configuration settings becomes and to switch under the state of work posture planting seedling device 2, be arranged on the right side that weight becomes a heavy side and plant service tank 19 on the 2B of seedling portion and be positioned at and plant central side position, seedling device 2 left and right sides.Therefore, the weight that the right side plants the 2B of seedling portion is easy to act on a left side and plants on the 2A of seedling portion, and the result can improve the left and right sides balance of planting seedling device 2 under the work posture effectively.The adoptable structure of this situation is, can be plant that a left side that seedling device 2 is divided into the 4 road seedlings of planting plants the 2A of seedling portion and the right side of the 6 road seedlings of planting plants two parts of the 2B of seedling portion unequally, therefore, with compare planting seedling device 2 situation that following of impartial two-part structure disposes left and right sides service tank 19 from about the body center equably about only being divided into, install without symmetery ground.

Below, illustrate when planting seedling device 2 cuts apart and the locking mechanism when connecting.

As shown in Figure 8, the structure of planting seedling device 2 is for can two left sides that are divided into the 4 road seedlings of planting planting the 2A of seedling portion and the right side of the 6 road seedlings of planting plants the 2B of seedling portion.

As Figure 20～shown in Figure 23, show and plant after seedling device 2 is divided into left and right sides two parts, plant about switching under the situation of the work posture that the 2A of seedling portion, 2B connect with the posture forward that can plant, be used to connect the retaining mechanism of two 22A of seedling carrying base portion, 22B.This retaining mechanism is provided with locking member 72 at the position of the face of the left and right sides seedling carrying base 22A of portion, 22B face-off and following locking member 73, two locking members 72,73 are operated by functional unit described later.

Last locking member 72 is accepted parts 72B by tabular engaging part 72A and engaging and is constituted, tabular engaging part 72A is arranged on the back side of the right seedling carrying base 22B of portion, can be around P12 easy on and off ground, horizontal axle center swing perpendicular to the seedling mounting surface, engaging is accepted the left side that parts 72B is arranged on adjacency and is planted on the seedling platform 22A of portion, keep cooperating with tabular engaging part 72A, from front and back clamping plates shape engaging part 72A.The engaging recessed part 72b that passes tabular engaging part 72A when parts 72B is accepted in this engaging by a pair of clamping plate in front and back and perforation support two clamping plate constitutes with the engagement pin 72C that keeps fastening state.

Following locking member 73 is forming below the last locking member 72 and on the surface of the 22B of seedling carrying base portion.Following locking member 73 is made of two locking member 73A, 73B flexible, that freely connect.Two locking member 73A, 73B set section groove shape structure down for.On the other hand, when the 22A of seedling carrying base portion, 22B are work posture at zoarium, be positioned at and the 22c of wall portion of a side, the state of 22d adjacency., with the engaging of the form that is capped, two 22c of wall portion, 22d can not left here, can maintain under the work posture planting the seedling platform 22A of portion, 22B with respect to two 22c of wall portion, 22d by two locking member 73A, 73B.

The first locking member 73A that is positioned at upper side position among first, second locking member 73A, the 73B is provided with the large-scale handle portion 73D as the single operation parts, when holding this handle portion 73D lifting, two first, second locking member 73A, 73B are raised into chevron under case of bending.When the lifting state pushed handle portion 73D downwards, two first, second locking member 73A, 73B were driven with extending, were in the locking state that the 22c of wall portion, 22d by a side cover.Be connected with tabular operation in the upper end of the first locking member 73A with attaching parts (example of bindiny mechanism) 74, this operation with attaching parts 74 can freely swing cantilever be supported in the side of the right seedling carrying base 22B of portion.The setting operation of the right seedling carrying base 22B of portion forms slot portion a little with the part of attaching parts 74, operation is positioned at the position that can embed this slot portion with attaching parts 74, under the work posture of the left and right sides seedling carrying base 22A of portion, 22B adjacency, cooperation, operation can not hindered to the outstanding of the inside from the seedling mounting surface with attaching parts 74.The upper end of the first locking member 73A can freely swing, be connected agley operation with attaching parts 74 from the outstanding part of the right seedling carrying base 22B of portion, and available above-mentioned handle portion 73D operation.

Be provided with connecting hole 72a with operation with the corresponding position of the front end of attaching parts 74 on the above-mentioned tabular engaging part 72A, simultaneously, the leading section of operating with attaching parts 74 connects this connecting hole 72a.When tabular engaging part 72A is swung, upwards promoted to operation with attaching parts 74, tabular engaging part 72A swing, leave engaging and accept parts 72B, remove locking state, simultaneously, when attaching parts 74 were used in operation from this state decline, two clamping plate that tabular engaging part 72A makes engaging accept parts 72B separated, and enter wherein, present locking state.

As indicated above, bottom at seedling carrying base 22, in seedling mounting surface one side, by two side 22c, 22d cover and the following locking member 73 of clamping, connection be arranged on top and seedling from locking member 73 down and plant the last locking member 72 of the back side one side of the face of putting and be connected in linkage with attaching parts 74 by operating, and as the functional unit of operating two locking members 72,73, can be a handle portion 73D who only on the second locking member 72B, is provided with.

Below, illustrate to be used to keep planting the work posture retaining mechanism 75 that seedling device 2 is set in the state under the work posture.Shown in Figure 28～31, on the link 16 that can rollably drive with linkage 4 freedom with respect to lifting by axis of rolling 16A,, can swing up and down the locking engaging part 76 of freely supporting to have a shape section in the front of the body 1 that travels towards it.The rearward end of this locking engaging part 76, the top of crossing link 16 extends rearward to the position, side of the support 18,18 that is positioned at the rear.In the rearward end of locking engaging part 76, form with described later and be stuck the engagement piece portion 76a that major diameter pin (end is stuck an example of portion) 18A engages.

On the other hand, on two horizontal side end faces of link 16, be equipped with short major diameter pin 16C, 16C.The horizontal stay 77 that swing is arranged in the arranged outside of major diameter pin 16C.This locking engaging part 76 is connected by bindiny mechanism 78,78 with two horizontal staies 77, swing integratedly.

Formation below bindiny mechanism 78,78 adopts.As shown in figure 30, locking engaging part 76 makes the structure that cantilevered can be swung, and its anter portion extends from a side opposite with the rearward end that clips swinging center formation engaging recessed part 76a.Below this locking engaging part 76, axle is supported with can be around the switching arm 78B of lateral shaft easy on and off swing, and this switching is connected by connecting rod 78A with the 76b of anter portion of locking engaging part 76 with arm 78B.The 76b of anter portion, connecting rod 78A and the switching of locking engaging part constitute quadric chain with arm 78B, are the structure of linkage.Install switching with the rotating shaft 78C of arm 78B along the front of link 16 towards about extend, but the end one of extending about it is equipped with horizontal stay 77 rotatably.

Be used to connect quadric chain and rotating shaft 78C, locking engaging part 76 here, and be called bindiny mechanism with the horizontal mechanism of stay 77,77.

On locking engaging part 76, stand and be provided with action bars 76A, on action bars 76A, be provided with the operation handle portion.When holding handle portion rearward bulldozing operation bar 76A operating, locking engaging part 76 and two horizontal staies 77,77 are swung integratedly, and engage with coupling side component described later, present locking state.

Below, the coupling side component that engages with locking engaging part 76 and two horizontal staies 77,77 is described.Shown in Figure 28,30,31, about the side of face-off mutually of frame 18,18, be respectively arranged with outstanding major diameter pin 18A, the 18A of being stuck towards the side of coupling side, constitute and the engagement piece portion 76a that locks engaging part 76, the structure that 76a engages.On the other hand, about the front towards link 16 of frame 18,18, be provided with carriage 18B and from this carriage 18B to lateral outer side side outstanding be stuck minor diameter pin 18a, 18a, carriage 18B is provided with connecting hole (pars intermedia is stuck an example of the portion) 18b to open front.

As shown in figure 31, during by action bars 76A swinging operation locking rearward engaging part 76, the engagement piece portion 76a of locking engaging part 76 engages with the pin 18A that is stuck of support 18, and drive transversal flaps 77, the major diameter pin 16C that is arranged on the link 16 engages with connecting hole 18b on the carriage 18B, in this simultaneously, be stuck minor diameter pin 18a and cooperate, present locking state with horizontal stay 77.

The above work posture retaining mechanism 75 of Gou Chenging, only by holding handle portion and operating operation bar 76A, just can lock the operation at position in two places in the centre position of position of the side surface part of the face-off mutually of left and right sides support 18,18 and left and right sides support 18,18.

As shown in figure 28, circular fender bracket 79 with the state configuration that centers on the transmission case 20 of planting towards the back from the two side ends of left and right sides support 18,18.Support rack 79b is establishing from the body of fender bracket 79 is upright downwards, and is fastened on the transmission case 20 of respectively planting.This support rack 79b supportive protection frame 79, protection planting mechanism 21 etc.Fender bracket 79 need be cut apart when the switching of work posture of planting seedling device 2 and storage posture, therefore, is provided with connection separating mechanism 80 in the centre position.

As shown in figure 26, connect separating mechanism 80, near the connecting portion of the 79B of right side fender bracket portion that belongs to right side support 18, be provided with carriage 81a, simultaneously, on this carriage 81a, be provided with the connection handle 81A that can swing around the axle center, front and back.Be hung with dead point spring 81B connecting on the handle 81A, towards operating position to connecting the handle 81A application of force.Connect drawing of the one swing only parts 81C that hangs tag is installed on the handle 81A, only hang tag that the leading section of parts 81C is bent to form fastener 81b drawing.

On the other hand, be bent to form at the connecting portion of the left side fender bracket 79A of portion and be stuck sheet 79a, this is stuck sheet 79a and only hangs tag that the fastener 81b of parts 81C can be fastened togather or separate with drawing.Install and fix the buffer unit of making by rubber 82 that is useful on the elastically deformable of strengthening connection status on the sheet 79a being stuck.

Below, with reference to Figure 24～Figure 26, the operating structure of the coupling mechanism 29 on the left side driving shaft 63 that is arranged on vertical feed drive axle 63 is described.As indicated above, engagement type coupling mechanism 29 is by constituting towards the slidingtype engaging pawl 29A of the mated condition application of force with respect to the fixation side engaging pawl 29B that driving shaft 63A can not be installed with slidably.

The switching of slidingtype engaging pawl 29A is to be carried out with fork 29C by the clutch that can swing.This clutch engages pawl 29A with fork 29C towards the slidingtype that detaching direction drives to the engaging direction application of force.Around the clutch of vertical axle center rotation with fork 29C on, connect fender brackets 79 and link drawing of the usefulness only parts 81C that hangs tag by discharging wire 83, by connecting the operation of handle 81A, but operated clutch is with fork 29C.So the connection handle 81A double as of fender bracket 79 is with respect to the functional unit of coupling mechanism 29.

In more detail, shown in Figure 24 (b) and Figure 26 (b), connect handle 81A and topple over, unload drop-down hanging tag when ending parts 81C left, discharge wire 83 and be subjected to stretching action, the wobble drive clutch thus, makes slidingtype engaging pawl 29A separate with fixation side engaging pawl 29B with fork 29C.Shown in Figure 24 (a) and Figure 26 (a), connect handle 81A from this state of operation, make drawing only hang tag parts 81C be stuck sheet 79a and engage connection fender bracket 79.In this connection status, towards the direction swing of leaving slidingtype engaging pawl 29A, slidingtype engaging pawl 29A moves towards the direction that engages pawl 29B engaging with fixation side under the effect of spring force clutch with fork 29C.

The following describes and switch to the operating mechanism 84 that holds the posture retaining mechanism and remove locking of locking under the state that holds posture planting seedling device 2.As Figure 28, Figure 29 and shown in Figure 32,, be respectively arranged with the card that cantilevered can swing and end locking member 84A, 84A at the left-hand end of left support 18 and the right-hand end of right support 18.Each card end the rear of locking member 84A and fender bracket 79 near be provided with lock release bar 84B.Lock release bar 84B ends locking member 84A with card and is connected by gangbar 84C.Engaging locking member 84A by spring towards the engaging direction application of force.

On the other hand, as shown in figure 28, in the back of link 16, towards about be equipped with clamping rpole (being stuck an example of portion) 16b, this clamping rpole 16b ends locking member 84A with card and engage, is configured for the storage posture retaining mechanism of definite locking state.

That is to say, as shown in figure 29, switching under the state that stores posture planting seedling device 2, the left end that switches to the support 18 under the posture of front and back is positioned at the place ahead, the posture that card ends locking member 84A be the posture along the length direction of link 16, and card only locking member 84A automatically engages with clamping rpole 16b.By the only this automatic engaging of locking member 84A of card, present the locking state that stores under the posture.

During from this locking state operation locking relieving rod (example of lock release functional unit) 84B, removable card ends locking member 84A, removes locking state.

By above-mentioned operation, switch under the work posture with the operation that stores under the posture and be summarized as follows to retaining mechanism:

At first, from work posture to storing under the situation that posture switches, from state-driven lateral transfer driving mechanism 57 shown in Figure 7, make seedling carrying base 22 near about a side (this close state does not show in the drawings).Near under a side the state, remove the locking state of each retaining mechanism.

1. be operatively connected handle 81A, remove the coupling mechanism 29 that connects separating mechanism 80 and vertical feed drive axle 63.

2. follow, upwards draw ground operation handlebar hand 73D, remove the clamped condition of two locking member 73A, 73B of locking member 73 down, upwards promote the tabular latch for printed circuit 72A that goes up locking member 72 with operation with attaching parts 74 simultaneously, remove itself and the cooperating of latch for printed circuit 72B, make seedling carrying base 2 separable.In addition, from the one side operation aforesaid operations bar 76A of driver behavior portion, the locking state of releasing locking latch for printed circuit 76 and horizontal stay 77 is removed getting in touch of link 16 and support 18.

3. remove locking state by above operation, plant the connection status of the 2A of seedling portion, 2B about removing thus.Here, one side's the 2A of the seedling portion of planting etc. about stretched operation plants the 2A of seedling portion, 2B and separates (this state does not show in the drawings) yet about making artificially.

4. in case one side's the 2A of the seedling portion of planting about stretched operation is artificially followed in separation, swingingly drive to storing posture.So, as shown in Figure 8, swing span 17 is the center with the axle center that is connected with link 16, swing rearward, switch to the posture towards front and back, in this simultaneously, support 18 is the center with the point that is connected with swing span 17, direction swing towards opposite with swing span 17 becomes the posture towards the fore-and-aft direction that is parallel to swing span 17.This state is a storage posture shown in Figure 9.

5. become when storing posture, the card of operating mechanism 84 ends locking member 84A and engages with the clamping rpole 16b of link 16, presents locking state automatically.

6. returning under the situation of work posture from storing posture, operation setting about plant each lock release bar 84B, 84B on the 2A of seedling portion, the 2B, can remove the locking under the storing state.And, respectively plant the 2A of seedling portion, 2B by catching, return original work posture artificially and operate, switch to work posture.

Other form of implementation

Below, other form of implementation of the present invention is described.

1. service tank 19 is planted on the seedling device 2A on the left of also can only being arranged on the contrary with above-mentioned form of implementation.

2. can adopt and be divided into and to carry out a left side that 6 roads plant seedling and plant the 2A of seedling portion and can carry out the two-part structure that the right side that 4 roads plant seedling plants the 2B of seedling portion planting seedling device 2.In addition, be divided into equably about can also adopting can carry out 5 roads plant seedling about plant the two-part structure of the 2A of seedling portion, 2B.Moreover, about being applicable to per 5 roads, the present invention is divided into equably under the situation of planting seedling device 2 of the two-part structure of planting the 2A of seedling portion, 2B, compare with the situation that sets the whole ground hull 23 that has the center hull, can only shorten to the degree that the center hull does not rearward stretch out planting the body total length that seedling device 2 switches under the state that stores posture.

3. the work posture that utilizes clutch mechanism 85 or form wiry as expression with store the impact absorbing member on the endless belt of being arranged on that uses when posture is switched, except that spring, also can use the structure of rubber or resin formation cord shape.

4. as switching to work posture and the switching mechanism that stores under the posture, except plant the posture of the 2A of seedling portion, 2B by frame 17,17 switching right and lefts that swing, linkage etc. also can be set on link 16 to replace this swing span 17 planting seedling device 2.In addition, in the present embodiment, though the situation of handover operation is artificially arranged,, also can utilize drive unit to carry out this action.

5. establish form as wiry, differ to establish a capital and be arranged to the U word shape, also can open and be set as linearity.In addition, if grounding sensor and lifting unit are set planting on the seedling device, its desired location without limits.In above-mentioned form of implementation, as rice transplanter of the present invention, though show the example of planting seedling device 2 of the structure that is equipped with changeable posture,, what also can be equipped with the structure that can not switch posture plants seedling device 2.

6. as grounding sensor, though used whole ground hull, but grounding sensor also can be provided with respectively with whole ground hull.

7. as grounding sensor 23, if about be provided with one.In addition, though about the end grounding sensor 23 is set respectively, also can be used to detected value from a grounding sensor 23.

Claims (4)

1. a rice transplanter comprises engine (6); Acceptance is planted seedling device (2) from the power of planting of this engine,

Described plant the seedling device by about plant seedling portion (2A, 2B) and constitute, simultaneously, its structure be changeable one-tenth plant about this seedling portion (2A, 2B) for its seedling plant the face of putting (22a) towards the interconnective work posture in body rear and above-mentioned about plant seedling portion separately, its seedling mounting surface is towards the storage posture of body left and right directions

Plant seedling portion about described and have planting mechanism (21); And send to this planting mechanism and to plant vertical transport driving (55) of putting the seedling on described seedling mounting surface (22a), it is characterized in that,

One side's the seedling portion of planting (2B) is provided with the service tank (19) of acceptance from the above-mentioned power of planting of described engine (6),

The vertical feed drive axle (63) that is provided with above-mentioned vertical transport driving (55) extends in the seedling portion of planting (2A) from this service tank to the opposing party, and,

This vertical feed drive axle comprises first driving shaft (63B) in the seedling portion of planting (2B) that is arranged on a described side, be arranged on second driving shaft (63A) in the opposing party's the seedling portion of planting (2A) and be arranged on first driving shaft and second driving shaft between make the interrupted attaching parts of two driving shafts (29)

Under described work posture,, through described attaching parts and described second driving shaft, can pass to the plant setter structure (21) of described the opposing party's the seedling portion of planting (2A) from described first driving shaft from the power of described service tank (19).

2. rice transplanter according to claim 1 is characterized in that, plants between the seedling portion (2A, 2B) about described and sets described plant setter structure (21) with different numbers,

Sides many in the number of planting mechanism plant in the seedling portion (2B), the lateral transfer driving mechanism (57) that is provided with described service tank (19) and back and forth drives described seedling carrying base portion (22A, 22B) with certain stroke.

3. rice transplanter according to claim 2 is characterized in that, the described seedling device (2) of planting is divided into even number road unit respectively and plants seedling portion (2A, 2B) about described, is respectively planting in the seedling portion, and per 2 roads are provided with 1 transmission case of planting (20).

4. according to each described rice transplanter in the claim 1～3, it is characterized in that described attaching parts (29) are bonded together described first driving shaft (63B) and second driving shaft (63A) with certain rotatable phase.

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