CN100415072C - Seedling-transplanting device - Google Patents
Seedling-transplanting device Download PDFInfo
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- CN100415072C CN100415072C CNB2006100715419A CN200610071541A CN100415072C CN 100415072 C CN100415072 C CN 100415072C CN B2006100715419 A CNB2006100715419 A CN B2006100715419A CN 200610071541 A CN200610071541 A CN 200610071541A CN 100415072 C CN100415072 C CN 100415072C
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Abstract
The purpose of present invention is to provide a seedling-transplanting device of a transplanter in which the front end of transplanting case provided with a planting mechanism (4) connects with transverse transplanter frame in a backward cantilever form, and a driving mechanism in the case connects by linkage with an input shaft set up transversely at the front of the transplanting case and a transplanting driving shaft set up transversely at the rear of the transplanting case, realizing lighting of the case and improved assembly operation performance and high sealing performance. The transplanting case (8) has a structure of a direct molding long cylinder in traversing direction, partitions (8d) are formed between the front connecting part in the transplanting case (8) which connects to the transplanter frame (6) and the shaft supporting part of the input shaft (20), for separating the transplanting case interior in front and rear, the rear opening end of the transplanting case is sealed by a lid (46).
Description
Technical field
The present invention relates to link and be bearing in the seedling-transplanting device at the rear portion of riding type rice transplanter, particularly relate to characteristic seedling-transplanting device aspect the plantation case, wherein said plantation case is equipped with plantation mechanism at the rear portion.
Background technology
As seedling-transplanting device, known have a for example following apparatus: as disclosed in the Japanese kokai publication hei 10-164920 communique (below be called " patent documentation 1 "), on the plantation frame of growing crosswise, linking service tank, and the leading section of the rear portion having been equipped the plantation case of plantation mechanism is planted on the frame with cantilever-shaped being attached at backward, to give the power shaft of crossbearer in the front portion of plantation case from the transverse axis transmission of power of service tank output, the plantation driving shaft at the rear portion of plantation case links via the interlock of the transmission mechanism in the case with this power shaft and crossbearer.In addition, known also have following apparatus: as disclosed in the Japanese kokai publication hei 3-7503 communique (below be called " patent documentation 2 "), the plantation case is constituted tubular long on the integrated fore-and-aft direction, the front portion of this plantation case is attached at the horizontal side of service tank, will gives the plantation case from the transverse axis transmission of power of service tank.
Service tank and plantation case are attached at structure on the plantation frame of growing crosswise, have following characteristics: can be by quantity that changes the plantation case and the seedling-transplanting device that configuration constitutes various plantation columns, can the common feed case and plantation case and realize that cost reduces.In patent documentation 1 disclosed device, will plant the structure of cutting apart about case constitutes, one dividing box leading section partly is attached on the plantation frame, and another dividing box of joint partly and with bolted links on this dividing box part.
Owing in the plantation case, filling or stored lubricating oil, so need be to the tight oil seal of plantation case enforcement, so that this lubricating oil can not leak in the paddy field for the transmission mechanism of dress in lubricated.
In the disclosed plantation case of cutting apart structure of patent documentation 1, because the graft union complete cycle of left and right sides dividing box part all becomes the sealing position, so will engage with bolted with the periphery that little spacing will be planted case, not only the bolt bond sites becomes many, assembles and take time and energy very much, and owing to there being many bolts to make the weight of plantation case become big.
For lightweight, the raising assembleability of realizing planting case, will plant case like that one-body molded shown in patent documentation 2 is that tubular long on the fore-and-aft direction is effective.But, be attached in the structure of plantation on the frame will planting case, be that open front end with one-body molded plantation case for tubular links and is bearing on the plantation frame, need possess seal construction at the linking part place of plantation frame and plantation case for the inside that seals the plantation case.But the linking part of plantation frame and plantation case is the weight loading of plantation case and concentrates the position of effect from the plantation reaction force of plantation mechanism, might produce distortion or strain and make the sealing reduction on bond sites.
Summary of the invention
The present invention is conceived to such problem and makes, and its objective is the lightweight that realizes the plantation case and improves assembling operation, and can guarantee high leakproofness.
First feature of the present invention constitutes, a kind of seedling-transplanting device of rice transplanter,
Possess: the plantation frame of growing crosswise, plantation case and be equipped in the plantation mechanism at the rear portion of above-mentioned plantation case,
The leading section of above-mentioned plantation case is linked to above-mentioned plantation frame with backward cantilever-shaped,
The power of exporting from the body of above-mentioned rice transplanter is passed to the power shaft of crossbearer in the front portion of above-mentioned plantation case, and this power shaft and crossbearer link via the transmission mechanism of being located in the plantation case at the plantation driving shaft at the rear portion of above-mentioned plantation case,
In the seedling-transplanting device of this rice transplanter,
Above-mentioned plantation case constitutes tubular long on the integrated fore-and-aft direction, and, support between the position at the front end linking part of plantation frame binding above-mentioned plantation case and above-mentioned and the axle of power shaft, be formed with the next door of separating before and after the plantation case inside, the rear open end of plantation case is closed by cap seal.
According to above-mentioned formation, by with sealing ring etc. with power shaft and the axle support sealing of driving shaft and with rear open end that lid will plant case seal of crossbearer before and after the plantation case, can the inner space of taking in transmission mechanism is airtight.And, because the aperture area of rear open end is less, so only just can seal reliably with several bolted.
Play the function of ribs as the next door of the antetheca of the Transmission Room of interior dress transmission mechanism, the rigidity of the front of plantation case uprises, and the plantation case uprises with respect to the strength of connection of plantation frame.
Thereby according to above-mentioned formation, case is one-body molded can be realized lightweight and improve assembling operation for tubular by planting, and can guarantee high leakproofness.
Second feature of the present invention constitutes, above-mentioned transmission mechanism is made of the chain-drive mechanism of the above-mentioned plantation driving shaft of deceleration, the limit, upper end of above-mentioned plantation case constitutes linearity, and the limit, lower end of plantation case constitutes give prominence to stepped downwards near the plantation driving shaft.
In seedling-transplanting device, the float supporting arm is can be the below that mode that the center swings up and down is provided in the plantation case with the front end, and, rearward end pivot suspension binding at this float supporting arm has the level land float, change the height of level land float by swing float supporting arm, change plantation mechanism and regulate planting depth with respect to the height of field face with respect to the plantation case.In this case, limit, lower end as described above form stair-stepping plantation case below, except near plantation driving shaft all forms bigger up and down space.By in this bigger up and down space, the float supporting arm being swung up and down, can change significantly up and down the level land float the pivot suspension point of contact the position and guarantee that the planting depth adjustable range is bigger.
The 3rd feature of the present invention constitutes, and above-mentioned transmission mechanism is made of chain-drive mechanism, be equipped on this chain-drive mechanism band plate-like chain tensioning device the front end location and be limited to the fastener of the inside that is integrally formed in the plantation case.
According to above-mentioned formation, only by inserting chain tensioning device from the open rearward end of plantation case, the front end of chain tensioning device being limited to fastener in the case, just chain tensioning device can be positioned properly and make it act on the driving chain, it is easy that the assembling of chain tensioning device becomes.
The the of the present invention the 4th and the 5th feature constitutes, and is provided with the outage that the dismounting by fuel drain plug opens and closes above-mentioned covering.
According to above-mentioned formation, if at the plantation case outage is set on one's body originally, then the intensity at outage periphery place's plantation case reduces, and covers by outage is arranged on, and can guarantee to plant the intensity of case.
It is that the rear end of above-mentioned chain tensioning device is by the end bearing of above-mentioned fuel drain plug that the 6th feature of the present invention constitutes.
According to above-mentioned formation, do not need to be used for the special-purpose member of supporting chain stretcher, be effective for the reduction and the lightweight of number of components.
The 7th feature of the present invention constitutes, and the periphery in the rear open end of above-mentioned plantation case is provided with and spreads all over the projecting strip part that complete cycle ground centers on above-mentioned lid.
According to above-mentioned formation, on the composition surface of rear open end that aqueous sealant is coated in the plantation case and lid and with bolted, link under the situation about covering, the sealant of extruding from the composition surface because of being screwed into of bolt is spreaded all over the prominent bar of complete cycle ground around lid and is stopped, thereby stop it to flow out, can avoid damaging the situation of outward appearance because of the sealant of extruding to the outside.In addition, by stop the curing of the sealant that stores by prominent bar, can also improve sealing.
As the plantation mechanism of the seedling-transplanting device that is equipped on rice transplanter, for example have and have the mechanism that the pair of right and left dividing box that aluminium die casting is formed partly engages the rotary box that links and constitute.In this rotary box from the central part of the dividing box part in the outside left of plantation case with link from the outstanding plantation driving shaft that is provided with of plantation case.In this case, because the plantation that effect is bigger on the linking part of rotary box and plantation driving shaft drives load, so on the dividing box part in the outside of rotary box, the protuberance that inserts and link the plantation driving shaft is set sometimes, and the linear ribs that links this protuberance and perisporium is set on the case inner surface, improves the intensity of the axle supporting linking part of rotary box and plantation driving shaft.
But, since linear ribs with respect to protuberance with to the horn shape setting, be easy to generate difference so rotary box is in the stress diffusion property that makes progress in week with the bond sites of planting driving shaft, wish to increase the thickness and the height of linear ribs for the intensity of fully guaranteeing rotary box.In this case, if increase the thickness and the height of linear ribs partly, then the cooling distribution character during die cast dividing box part reduces and is easy to generate residual stress, need carry out careful post processings such as thermal treatment in order to remove residual stress, thereby the manufacturing cost of rotary box uprises.The 8th feature of the present invention constitutes except solving above-mentioned problem, also addresses this problem.
Promptly, the 8th feature of the present invention constitutes, in above-mentioned rice transplanting mechanism, the pawl case that possesses the plantation pawl rotates ground axle suspension freely and is installed on and constitutes two both ends of cutting apart the rotary box of structure, in the variable speed gear drive and the interlock of above-mentioned pawl case that are loaded in the above-mentioned rotary box link, along with of the rotation of above-mentioned rotary box to certain orientation, above-mentioned pawl case rotates with non-uniform velocity synchronously to the direction opposite with the direction of rotation of rotary box, rotary box is provided with the axle supporting linking part that inserts and link the plantation driving shaft of the above-mentioned rotary box of rotation driving, and, outstanding being provided with on the inner surface of rotary box or outer surface around the cyclic rib of this supporting linking part.
According to above-mentioned formation, by the axle supporting linking part of concentrating around bearing strength test with cyclic rib, axle supporting linking part becomes substantially evenly to the stress diffusion of all directions, even particularly do not thicken or increase cyclic rib, also can improve the intensity of axle supporting linking part.
In addition, the easy performance of cyclic rib makes near the function of the mobile smoothing of the melted material the axle supporting linking part when the aluminium die cast, can suppress problem, not need all especially post processings such as thermal treatment that residual stress is removed usefulness of thickly carrying out because of the inhomogeneous generation residual stress that causes of cooling distribution character.
Thereby, link the pattern of relevant reinforcement by reasonably improving with rib with the axle supporting, can under the situation that does not improve manufacturing cost, obtain possessing the rotary box of expectation strength.
Description of drawings
Fig. 1 is the end view of seedling-transplanting device.
Fig. 2 be seedling-transplanting device want portion's vertical view.
Fig. 3 is the end view of plantation case.
Fig. 4 is the vertical profile end view of plantation case.
Fig. 5 is the cross-sectional vertical view of plantation case.
Fig. 6 is the key diagram of assembling process.
Fig. 7 is the rear end face figure of plantation case.
Fig. 8 is the vertical profile rearview of the operative configuration of expression furrow limit clutch.
Fig. 9 is the vertical profile front view of plantation mechanism.
Figure 10 is the in-built end view of expression rotary box.
Figure 11 is outside dividing box part (a) inner side view, (b) cutaway view, reaches (c) outer side view.
Figure 12 is the cutaway view of expression state midway of assembling rotary box on the plantation driving shaft.
Figure 13 is the in-built end view of expression pawl case.
Figure 14 is vertical profile end view (a) and the vertical profile front view (b) of another embodiment of expression chain tension structure.
Figure 15 is the end view of another embodiment of expression chain tension structure.
Figure 16 is the cutaway view of the outside dividing box part of another embodiment of expression.
Embodiment
Fig. 1 represents to link and be equipped in the end view of the seedling-transplanting device 1 at riding type rice transplanter rear portion, and Fig. 2 represents the vertical view that it wants portion.This seedling-transplanting device 1 is to constitute with the specification of planting 6 row, wave the rear end lower that is attached at the lifting linking member mechanism 2 on the body of advancing that is equipped on the outer left side of figure freely, possess: bunch shape rice shoot of mounting 6 number of columns and the rice shoot mounting table 3 that back and forth laterally moves with certain stroke, tell rice shoot from the lower end 1 strain strain ground of this rice shoot mounting table 3 and plant on the face T of field 6 groups of revolving plantation mechanisms 4 and with the mode of plantation position two row, the two row ground equalizations of field face T 3 level land floats 5 etc. of outfit side by side.
Be equipped with on the left and right directions that the aluminium extrusion molding is formed the plantation frame 6 of long angle tubular at the preceding side lower part of seedling-transplanting device 1, this plantation frame 6 is waved the rear end lower that is attached at above-mentioned lifting linking member mechanism 2 freely.Left and right sides pars intermedia in plantation frame 6 is linking the service tank of accepting from the power of the body of advancing 7, and, near the left and right sides central portion of plantation frame 6 and two ends, the left and right sides, linking 3 plantation casees 8 with backward cantilever-shaped.Connecting crossbearer at the rear portion of planting case 8 fully has plantation driving shaft 9, and end is installed with 2 groups of above-mentioned plantation mechanisms 4 about each plantation driving shaft 9.
In plantation mechanism 4, possess: link and be fixed on the end of above-mentioned plantation driving shaft 9 and around the rotary box 10 of the axle center of plantation driving shaft 9 p one rotation with can on each pawl case 11, be equipped with plantation pawl 12 and rice shoot pushing piece 13 around the pawl case 11 of transverse axis heart q rotation ground axle suspension in the lateral outer side at the both ends of this rotary box 10.
Under the effect of plantation driving shaft 9, march forward direction of rotation (in Fig. 1, being counter clockwise direction) with constant speed rotation 1 circle This move in linkage with above-mentioned rotary box 10, pawl case 11 under the interior effect that is loaded on the variable speed gear drive 53 in the rotary box 10 in the other direction with non-uniform velocity rotation 1 circle, thus, plantation pawl 12 is depicted the terminal rotary motion trace S from the seedling conveying end of rice shoot mounting table 3 lower ends to the lengthwise of field face and is circulated mobile, for this point, details will be narrated in the back.Take moment of field face at plantation pawl 12 rice shoot that will tell from the lower end of rice shoot mounting table 3 and keep, rice shoot pushing piece 13 is to the side-prominent action of pawl point, makes the rice shoot of maintenance leave plantation pawl 12 and it is pushed in the ground.
The lower front transverse horizontal of plantation case 8 float fulcrum shaft 15 is equipped with, this float fulcrum shaft 15 is bearing on the carriage 6a at the two ends that are equipped on plantation frame 6, in the rear end of rearward giving prominence to 3 groups of float supporting arms that are provided with, respectively can link and support level land float 5 around the mode that fulcrum a swings up and down from this float fulcrum shaft 15.
The operation of the body output of advancing in left side is passed to above-mentioned service tank 7 with power by axle outside scheming, drive rice shoot mounting table 3 by the power traverse feed that passes to this service tank 7, and every its stroke finishes just feeding and drives the rice shoot that is equipped on rice shoot mounting table 3 and supply with and be with 17 1 determining deviations.The transverse axis transmission of power of exporting from the rear portion of service tank 7 is bearing in the power shaft 20 of the front portion of respectively planting case 8 to crossbearer.
Thereby the protuberance 8a that above-mentioned power shaft 20 connected and be erected at the front portion of being located at plantation case 8 goes up and is supported by bearing, and, thereby the protuberance 8b that above-mentioned defeated plantation driving shaft 9 connected and be erected at the rear portion of being located at plantation case 8 goes up and is supported by bearing, and these power shafts 20 and plantation driving shaft 9 link by chain-drive mechanism 21 interlocks.
In chain-drive mechanism 21, possess: be installed in drive sprocket 22 on the power shaft 20, be installed in the lax chain tensioning device 25 etc. that driven sprocket 23, volume on the plantation driving shaft 9 hangs over the driving chain 24 between them and absorb driving chain 24.The pitch diameter of driven sprocket 23 is set at 2 times of drive sprocket 22, so that with 1/2nd the rotary speed deceleration plantation driving shaft 9 of power shaft 20.
In addition, when the assembling of chain-drive mechanism 21, as shown in Figure 6, plantation case 8 is become under the state of its front end posture of standing up down, drive sprocket 22 is bearing on the lower end ring portion of the driving chain 24 that falls in the case, then, the skeleton component of having assembled clutch components 27, torque spring 28 and the spring-leaf retainer 30 of torque limiter 26 in advance on power shaft 20 is inserted from the protuberance 8a of big footpath side, then, on the protuberance 8a about bearing 31, oil sealing 32, bearing seal lid 33 etc. be installed in, with sealing state bearing supporting power shaft 20.
Above-mentioned driven sprocket 23 loose embeddings are bearing on the plantation driving shaft 9, and link via furrow limit clutch 35 and 9 interlocks of plantation driving shaft.Furrow limit clutch 35 be corresponding to each plantation case 8 with 2 mechanisms that the position stops to plant the work of mechanism 4 that itemize, near the furrow limit to use than planting fully under the situation that columns that columns lacks plants.This furrow limit clutch 35 comprises: can be shifted the ground spline be installed in clutch components 36 on the plantation driving shaft 9, to this clutch components 36 to the spring 37 of the driven sprocket 23 side slip application of forces and be located at clutch components 36 and the opposed position of driven sprocket 23 on pawl engaging piece 38 etc., under common plantation job state, be subjected to spring energized clutch components 36 integrated with driven sprocket 23 via pawl engaging piece 38, the rotary power that passes to driven sprocket 23 via chain-drive mechanism 21 passes to plantation driving shaft 9 via clutch components 36.Retreat the engagement that pawl engaging piece 38 places are removed in displacement by making clutch components 36 overcome spring 37, the transmission of power of driven sprocket 23 to plantation driving shaft 9 disconnected, the plantation mechanism 4 that is driven by this plantation driving shaft 9 is stopped.
As shown in Figure 8, on the perimembranous of the clutch components 36 of furrow limit clutch 35, possess and surmount inclination cam 36a towards axis direction, if the clutch operating pin 39 that is installed on the plantation case 8 from the place ahead perforation is protruded in the rotary motion trace that surmounts inclination cam 36a of the clutch components 36 that the clutch on-position rotates, then by clutch operating pin 39 that is in certain position and the cam effect that relative rotation produced that surmounts inclination cam 36a, clutch components 36 overcomes spring 37 and disconnects the direction forced displacement to clutch, and plantation driving shaft 9 stops on the rotatable phase of regulation.
The clutch of plantation driving shaft 9 by furrow limit clutch 35 disconnects the rotatable phase that action stops and being set at, and each of a pair of plantation pawl 12 that is equivalent to be equipped in the two ends of rotary box 10 does not protrude into the position of field face T.In addition, the rotatable phase of clutch components 36 and driven sprocket 23 engagements also is set on the certain position of direction of rotation, even carried out extracting the clutch making operation of clutch operating pin 39, also be to arrive certain rotatable phase up to plantation driving shaft 9, pawl engaging piece 38 just meshes, under the full row plantation state that the furrow limit clutch 35 of each plantation case 8 is all connected, whole plantation mechanisms 4 is to plant action identical opportunity.
Clutch operating pin 39 engages interlock with an end that can be attached at the clutch operating arm 40 on plantation case 8 tops around horizontal fulcrum b swing ground axle suspension, and clutch operating arm 40 is extracted direction (clutch connection direction) the swing application of force by the torsion spring 41 that is installed on the fulcrum b to pin.The elastic arm 43 that has utilized torsion spring is installed on clutch operating arm 40, is attached at the end of elastic arm 43 by the inner of the operation cable 42 of body Drive Section operation.By draw operations operation cable 42, make clutch operating arm 40 overcome torsion spring 41 and swing, charge into operation furrow limit clutch 35 is carried out opening operation thereby clutch operating pin 39 is performed.In addition, operate the difference on the opportunity of cable 42 according to draw operations, sometimes clutch operating pin 39 is connected on the outer peripheral face that surmounts inclination cam 36a and can not protrudes in the rotary motion trace that surmounts inclination cam 36a, in this case, elastic arm 43 torsional deflections and absorb the cable stroke, rotate to the moment that clutch operating pin 39 can protrude into the rotatable phase in the rotary motion trace that surmounts inclination cam 36a at clutch components 36, the recuperability of reversing by elastic arm 43 makes clutch operating arm 40 swing give prominence to operated clutch operative pin 39.
As shown in Figure 4, the following side path that is loaded on the driving chain 24 of the chain-drive mechanism 21 in the plantation case 8 in becomes the slack-side path.The chain tensioning device 25 that acts on this slack-side path is made of the leaf spring material of band shape, and convex ground is crooked, so that suppress on driving chain 24 from the below.
The case leading section 8c of plantation case 8 forms the hollow structure of opening forwards, and, be formed with the rib 8e that links to each other with next door 8d with up and down wall, improve the flexural rigidity about reaching up and down.This case leading section 8c form have with the height of plantation frame 6 about equally height and have the shape of expansion forward of big transverse width, stably be connected to bigger left and right sides width on the rear surface of plantation frame 6, be firmly fastened to by in-and-out bolt 45 about down thereon and be fixed on the plantation frame 6.On the left and right sides central part on the limit, upper end of case leading section 8c, be formed with the projection 8f that forwards stretches out, on the upper surface that this projection 8f is fastened on plantation frame 6, plant case 8 with respect to the location of plantation frame 6 and the supporting of load.
On the rear open end 8g of plantation case 8, engage the lid 46 that panel beating pressure processing structure is arranged, fastening fixing by bolt 47 up and down, will take in the back-end closure of the transmission of chain-drive mechanism 21 with space R.Chain-drive mechanism 21 is by being stored in transmission with the lubricating oil bath lubrication among the R of space, is lubricated oily supply from being located at the oil filler point c that cover 46 top, carries out oil extraction from being located at the outage d that covers 46 bottom.In addition, oil filler point c opens and closes by the dismounting of resinous lid 48, and outage d opens and closes by the dismounting of fuel drain plug 49.
On the periphery of the rear open end 8g that plants case 8, be formed with and spread all over complete cycle ground around covering 46 prominent bar 50.On the composition surface of rear open end 8g that aqueous sealant is coated in plantation case 8 and lid 46, also will cover under the situation of 46 bolted binding, thereby the sealant of extruding from the composition surface by being screwed into of bolt 47 is blocked by prominent bar 50 and stops it to flow out to the outside, has avoided the problem by the sealant infringement outward appearance of extruding.In addition, by blocked the curing of the sealant that accumulates by prominent bar 50, can improve the sealing of junction.
As shown in Figure 3, Figure 4, the limit, upper end of plantation case 8 constitutes linearity, and that the diapire of plantation case 8 forms more by low more 3 grades of rear side is stepped, extracts the rear of internal mold when becoming the moulding transmission with space R easily and expands shape.
The step e in the place ahead that is formed at stair-stepping diapire is less, forms the groove shape fastener 51 that opens wide backward at this place.Be inserted in this fastener 51 by front end, can stop chain tensioning device 25 position skew forwards above-mentioned chain tensioning device 25.The rear end of chain tensioning device 25 bends to clasp shape, and this rear end is by the ejection forwards of above-mentioned fuel drain plug 49, thereby chain tensioning device 25 presses against on the driving chain 24 from the below with the state that bends to chevron.
The rear portion of plantation case 8 needs bigger width up and down for the driven sprocket 23 of taking in big footpath, the step f that is formed on the rear on the stair-stepping diapire is bigger, and the limit, lower end of plantation case 8 becomes give prominence to significantly stepped downwards near plantation driving shaft 9.Like this, the place ahead at bigger step f, below in plantation case 8 forms higher space, rearward end by being configured to above-mentioned float supporting arm 16, be the place ahead that the fulcrum a of level land float 5 is positioned at bigger step f, thereby the position that can change the fulcrum a of level land float 5 up and down significantly guarantee that the planting depth adjustable range is bigger.
Above-mentioned plantation case 8 not only has supporting and drives the function of the transmission case of plantation mechanism 4, also has the function of the bearing support of other mechanisms of supporting and device, below its structure of explanation.
Each the plantation case 8 lower front be formed with semicircular recess 61, each the plantation case 8 recess 61 in from below locate and snap in float fulcrum shaft 15 in rotating mode.
The horizontal side in top in the middle of the front and back of each plantation case 8, bolt is linking slipper bracket 62, described slipper bracket 62 is used for supporting above-mentioned rice shoot mounting table 3, it can be moved up and down along its incline direction, and, on the upper surface of plantation case 8, be formed with the fulcrum platform 65 of fulcrum shaft 64 that snaps in and keep moving up and down the motion arm 63 of usefulness.The mode that above-mentioned rice shoot mounting table 3 can horizontally slip with its bottom is accepted and is bearing on the rail plate 66 of growing crosswise, and, on top, can horizontally slip and can accept and support the upper rear portion of rice shoot mounting table 3 along the mode that rice shoot mounting table incline direction moves up and down from the upright pair of right and left pillars of establishing 67 of plantation frame 6.And, give prominence to the sliding bar 69 that is provided with along rice shoot mounting table incline direction from the pair of right and left supporting member 68 that is attached on the above-mentioned rail plate 66, connect on each slipper bracket 62 of the plantation case 8 that is bearing in the left and right sides respectively, rail plate 66 and sliding bar 69 slide up and down mobile integratedly, thereby can make rice shoot mounting table 3 integral body along its incline direction displacement.
The end of aforesaid operations arm 63 is fastened on the supporting member 68 of rail plate 66, regulate and fixedly remain on arbitrarily on the position by rotating by the not shown seedling amount of getting adjusting rod around fulcrum shaft 64, rice shoot mounting table 3 moves along its incline direction, the terminal rotary motion trace S of plantation pawl 12 and the repetition quantitative changeization of rice shoot mounting table bottom change the seedling amount of getting thus.
Later half top at each plantation case 8 is provided with technology projection 70, fertilizer apparatus being installed or being spilt in the pattern of apparatus (not shown) such as medicine device, can utilize this technology projection 70 to come bolt to link apparatus supporting arm (not shown).
As shown in Figure 9, the plantation case 8 the rear portion plantation driving shaft 9 the axle support on, shape ground flange links with one heart fixedly projecting member 54, and, rotating center section at rotary box 10 is equipped with loose embedding to be supported on the central gear G0 of plantation driving shaft 9, and the terminal claw 54a that this central gear G0 is engaged on said fixing projecting member 54 goes up and is prevented from rotating.In addition, be supported with the pawl bolster 55 that flange is linking pawl case 11 freely in the rotation of the both ends of rotary box 10, and, on the radial direction middle part of rotary box 10, be equipped with intermediate support axle 56.Idler gear G1 is being supported in loose embedding on intermediate support axle 56, and this idler gear G1 meshes with above-mentioned central gear G0 and the final stage gear G2 that is attached on the above-mentioned pawl bolster 55 respectively.Constituting each gear G0, the G1, the G2 that are assembled in the above-mentioned variable speed gear drive 53 in the rotary box 10 all is made of identical shaped elliptic gear.
According to above-mentioned formation, when rotary box 10 rotates with constant speed along the direction of rotation of advancing, the idler gear G1 that moves around the axle center p revolution of plantation driving shaft 9 with rotary box 10 with the state that is engaged on the fixing central gear G0, with respect to rotary box 10 along with revolution direction equidirectional with non-uniform velocity rotation relatively.The rotation of the variable speed of this idler gear G1 passes to final stage gear G2 with the non-uniform velocity counter-rotating, and is final, with final stage gear G2 integrated pawl bolster 55 driven with the non-uniform velocity rotation to the direction opposite with the direction of rotation of rotary box 10.Like this, if rotary box 10 encloses with constant speed rotation 1 along the direction of rotation of advancing, then with its synchronously, with non-uniform velocity rotation 1 time, a pair of plantation pawl 12 at two ends that is equipped in rotary box 10 is respectively according to the terminal rotary motion trace S cycle rotation of lengthwise in the other direction for pawl case 11.Thus, 1 circle with respect to rotary box 10 carries out 2 plantations by the plantation pawl 12 at rotary box 10 two ends.
In above-mentioned pawl case 11, can counterrotating camshaft 76 be combined by bearing with one heart and support, and the outer end of each camshaft 76 of two pawl casees 11 links the two ends that are fixed on strut 77 with respect to above-mentioned pawl bolster 55.Thus, pawl case 11 rotates with pawl bolster 55 rotation integratedly, and each camshaft 76 is maintained certain posture with respect to rotary box 10.
As shown in figure 13, above-mentioned rice shoot pushing piece 13 is installed in the end of push-off pin 79, and by the driving of advancing and retreat as described below of above-mentioned camshaft 76, described push-off pin 79 advance and retreat are slided freely and to be installed in the pawl case 11 by the state of the spring 78 outstanding application of forces of interior dress.
In pawl case 11, can driving rod 80 swingingly be installed around fulcrum r, the rear end of the end of this driving rod 80 and push-off pin 79 links via connecting rod 81 interlocks, swing by driving rod 80, push-off pin 79 advance and retreat, rice shoot pushing piece 13 moves back and forth between the going-back position of telling usefulness at the rice shoot of radix unguis side and the release active position at the pawl end thus.On camshaft 76, be formed with the cam 76a of the base end part of operation driving rod 80.Rotation by pawl case 10, camshaft 76 is with respect to the base end part rotation of driving shaft 80, seedling is told and is brought into the operating space of field face at plantation pawl 12 from the lower end of rice shoot mounting table 3, the base end part of driving rod 80 surmounts cam 76a (taking advantage of on cam 76a), and push-off pin 79 overcomes spring 78 and maintains on the position that retreats.Move to the moment of plantation position in 12 declines of plantation pawl, the phase place that the base end part of arrival driving rod 80 falls from cam 76a, remove driving rod 80 surmounting to cam 76a quickly, push-off pin 79 is promptly outstanding action by means of spring 78, and the rice shoot that remains on the plantation pawl 12 is released and stayed in the field by rice shoot pushing piece 13 quickly.
Finished plantation pawl 12 vertical motions of rice transplanting and moved to the rice shoot extracting position, during this vertical motion, the driving rod 80 that has surmounted cam 76a overcomes spring 78 and restores swing, and push-off pin 79 is return and restored.Like this, when rice shoot pushing piece 13 backward movement, restore swing, need the bigger load of effect in order to make driving rod 80 overcome spring 78.In the more seedling-transplanting device 1 of columns, all the peak load during backward movement is quite big simultaneously for the rice shoot pushing piece 13 of the plantation mechanisms 4 of row, it is big that the pulsation of loading in the plantation action cycle becomes, seedling-transplanting device 1 can rock, produce so-called " shake (シ ヤ Network リ) action ", become a reason of rice transplanting posture confusion.Therefore, release action moment by making the rice shoot pushing piece 13 of respectively planting mechanism 4 is identical, and make the shape difference of each row cam 76a,, can realize the dispersion of peak load and suppressed the plantation action of " shake action " with the recovery opportunity of retreating of the rice shoot pushing piece 13 that staggers.In addition, the recovery opportunity of retreating of rice shoot pushing piece 13 though wish in all plantation mechanisms of multiple row plantation mechanism 4, to stagger, if but consider productivity ratio, also can stagger one plant in the case 8 about the rice shoot pushing piece of plantation mechanism 4 retreat and restore constantly, implement in the mode of the plantation case 8 that will be equipped with same size side by side.
As Fig. 9, shown in Figure 10, be equipped with backlash absorbing mechanism 82 at the both ends of rotary box 10 with respect to variable speed gear drive 53.This backlash absorbing mechanism 82 comprises: and spline adjacent with pawl case 11 sides of final stage gear G2 is attached at the cam part 83 on the pawl bolster 55, can be around fulcrum c swingingly supported and be pressed to push strut 84 on the above-mentioned cam part 83 from periphery, with the compression helical spring 85 that pushes this push strut 84 towards cam part 83 elasticity, pawl bolster 55 revolution is moved and when telling the position near the seedling of rice shoot mounting table lower end, under the effect of the elastic pushing pressure that imposes on cam 83 by push strut 84, pawl bolster 55 and pawl case 11 are rotated to the direction application of force opposite with the revolution moving direction, absorb the backlash of variable speed gear drive 53.By such formation, can prevent to protrude into moment in bunch shape seedling at the lower end of rice shoot mounting table 3 plantation pawl 12, pawl case 11 is pushed back the phenomenon of the amount that is equivalent to the backlash size under the effect of charging into resistance.
Above-mentioned rotary box 10 in the seedling-transplanting device 4 that below constitutes like that below describes the detailed construction of each dividing box part 10A, 10B in detail for dividing box part 10A, 10B about aluminium die cast joint, with the structure of cutting apart of its periphery with a plurality of bolted bindings.In addition, for convenience of explanation, the dividing box part 10A of a side that will be far away apart from plantation case 8 is called outside dividing box part, will be called inboard dividing box part near the dividing box part 10B of a side of planting case 8.
As shown in figure 11, be provided with by embedded moulding at the central part of outside dividing box part 10A and bury the center protuberance 87 that is fixed with bearing part 86 underground, by in this bearing part 86, inserting plantation driving shaft 9, and the connecting pin 88 that will squeeze into outside case is crimped on the flat excision 9a of portion of plantation driving shaft 9, and rotary box 10 is fixed on the plantation driving shaft 9.
Above-mentioned center protuberance 87 outwards forms with square stretching out significantly from the sidewall 10a of rotary box 10, and also side-prominent in case slightly.Like this, can in the width of the axis of rotation direction that reduces rotary box 10, guarantee as linking rotary box 10 bigger with the axis direction length of the center protuberance of the axle support of plantation driving shaft 9.Therefore, can be under the situation of the width that does not increase rotary box 10 high accuracy and high strength ground link rotary box 10 and plantation driving shaft 9.
On the inner surface of outside dividing box part 10A, except above-mentioned center protuberance 87, the also outstanding middle protuberance 89 of the above-mentioned intermediate support axle 56 of embedded supporting and the outer end protuberance 90 that bearing supports above-mentioned pawl bolster of being provided with, center protuberance 87 and middle protuberance 89 are connected by linear ribs 91,92 with perisporium 10b, and center protuberance 87, middle protuberance 89 and outer end protuberance 90 connect by linear ribs 93.
On the inner surface of outside dividing box part 10A, be provided with cyclic rib 94 with concentric shape ground around center protuberance 87 and with the mode of in length and breadth linear ribs 91,93 quadratures is outstanding, act on bearing strength test on the center protuberance 87 via these linear ribs 91,93 and cyclic rib 94 to the roughly diffusion equably of all directions.
The outstanding linear ribs 95 that on the rotary box length direction, links center protuberance 87 and outer end protuberance 90 that is provided with on the outer surface of outside dividing box part 10A.Linear ribs 93 in this linear ribs 95 and the case roughly overlaps consistent, and the linear ribs 95 of case outer surface and the cyclic rib of case inner surface 94 minutes intersect mutually in the inside and outside of rotary box 10.
According to said structure, the bearing strength test that acts on the center protuberance 87 is diffused into sidewall 10a via these linear ribs 95 and cyclic rib 94, and is higher thereby the axle with respect to plantation driving shaft 9 of rotary box 10 supports the intensity of linking part.In addition, cyclic rib 94, easily performance makes near the function of the mobile smoothing of the melted material the axle supporting linking part when the aluminium die cast, can suppress the inhomogeneous residual stress that produces, not need thickly to carry out residual stress especially week and remove with post processings such as thermal treatments because of the cooling distribution character.Thereby, can under the situation that does not improve manufacturing cost, obtain having the rotary box 10 of expectation strength.
As shown in Figure 9, on the outer end protuberance 90 of outside dividing box part 10A, by squeezing into the oil sealing 96 that is equipped with the lip ring portion of the outer peripheral face sliding-contact of pawl bolster 55.The end of outer end protuberance 90 is approaching with the side that is equipped in the flange 55a on the pawl bolster 55, and the lip 96a outwardly of oil sealing 96 and the contacts side surfaces of flange 55a.Thus, can stop from the axle support of pawl bolster 55 and in rotary box 10, immerse muddy water, and stop the lubricating grease that is filled in the rotary box 10 to flow out.
Be provided with outwards outstanding center protuberance 97 at the central part of inboard dividing box part 10B, on this center protuberance 97 by squeezing into the oil sealing 98 that is equipped with the lip ring portion of the outer peripheral face sliding-contact of said fixing projecting member 54.The outside of the flange 54b that is had in fixing projecting member 54 is equipped with the fastening together cartridge unit 99 that is attached on the plantation case 8.The end of this cartridge unit 99 and oil sealing 98 closely are equipped with, and the inner peripheral surface sliding-contact of the lip 98a outwardly of oil sealing 98 and tube portion 55.Thus, can stop from the central shaft support of inboard dividing box part 10B and in rotary box 10, immerse muddy water, and stop the lubricating grease that is filled in the rotary box 10 to flow out.
As shown in figure 12, fixedly the bearing support position 54c of the end side of projecting member 54 forms littler than the intermediate seal position 54d diameter of oil sealing 98 sliding-contact effects.Therefore, when embedding is installed on the plantation driving shaft 9 outside the rotary box 10 that oil sealing 98 will be installed, can prevents the internal diameter lip of oil sealing 98 to contact and cause the problem of damage with the bearing support position 54c brute force of fixing projecting member 54.
In this embodiment, outside dividing box part 10A and inboard dividing box part 10B engage binding by 8 bolts 100 fastening on its periphery, are set near the 82 bolt arrangement pitches P1 of backlash absorbing mechanism littler than the bolt arrangement pitches P2 at other positions.Arrange by adopting this bolt, can improve near the case bond strength the backlash absorbing mechanism 82, can make backlash absorbing mechanism 82 for a long time with the high accuracy action, and in the bolt radical that reduces rotary box integral body, constitute the rotary box 10 of the Splittable that does not have the lubricating grease leakage.As a result, can in the intensity of keeping rotary box 10, realize lightweight.
As shown in Figure 9, all bights are cut off and form the endless groove 101 that spreads all over the case complete cycle in the graft union of outside dividing box part 10A and the inboard dividing box part 10B place.The aqueous sealant that is coated on the case composition surface is extruded, stores in endless groove 101 owing to the joint of case, can further improve sealing property.
As Figure 10, shown in Figure 11, near the composition surface of outside dividing box part 10A and inboard dividing box part 10B, outstanding being provided with mutually with the opposed tongue piece 102 of little gap d, when decomposing maintenance rotary box 10, after bolt 100 pulled down, by instruments such as straight screwdriver are inserted in the little gap d, just can damage the case composition surface and easily decompose the rotary box 10 that engages securely by the aqueous sealant that solidifies.Therefore, when after maintenance, assembling rotary box 10 once more, can with the high sealing state outside dividing box part 10A be engaged binding with inboard dividing box part 10B via the composition surface that does not have scar.
In the bearing protuberance 103 of the above-mentioned pawl case 11 of the direction rotation action opposite, also by squeezing into the oil sealing 104 that is equipped with the lip ring portion of the outer peripheral face sliding-contact of camshaft 76 with the direction of rotation of rotary box 10.Embedding is fixed with the seal cover 105 of the ware shape of the end that closely centers on bearing protrusion 103 outside on camshaft 76, and the lip 104a outwardly of oil sealing 104 contacts with the medial surface of seal cover 105.Therefore, can stop the immersion of muddy water in pawl case 11 and the outflow that is filled in the lubricating grease in the pawl case 11.
(other embodiment)
(1) as shown in figure 14, to be installed on the side of plantation case 8 in rotatable mode of regulating via fulcrum 72 from the eccentric cam 71 of below supporting chain stretcher 25, fix with double nut 73 behind suitable turned position by regulating eccentric cam 71, can carry out suitable tension adjustment corresponding to the stretching, extension of driving chain 24.
(2) as shown in figure 15, but by accepting from the below and the supporting arm 74 of supporting chain stretcher 25 is installed on the side of plantation case 8 via the adjusting knob 75 of the band scale mode with oscillation adjustment, can plant case 8 to each and carry out the little tension adjustment of deviation.
(3) in the above-described embodiments, link crossbearer at the power shaft 20 of plantation case 8 front and back and the transmission mechanism of plantation driving shaft 9 as interlock, used chain-drive mechanism 21, but also can link via bevel gear (not shown) and along 8 interior power transmission shaft (not shown) interlocks of adorning of plantation case.
(4), undertaken to utilize the mechanism that carries out the crank-type of 1 plantation by 1 circle rotation of plantation driving shaft 92 plantations rotary by 1 circle rotation of plantation driving shaft 9 like that except above-mentioned as the plantation mechanism 4 that drives by plantation driving shaft 9.
(5) as shown in figure 16, by being formed on above-mentioned cyclic rib 94 on the case outer surface and its linear ribs 93 with the case inner surface being intersected, also can realize the dispersion of bearing strength test and improve the intensity of rotary box 10.
Claims (8)
1. the seedling-transplanting device of a rice transplanter,
Possess: the plantation frame (6) of growing crosswise, plantation case (8) and be equipped in the plantation mechanism (4) at the rear portion of above-mentioned plantation case (8),
The leading section of above-mentioned plantation case (8) is with backward the cantilever-shaped above-mentioned plantation frame (6) that is linked to,
The power of exporting from the body of above-mentioned rice transplanter is passed to the power shaft (20) of crossbearer in the front portion of above-mentioned plantation case (8), this power shaft (20) and crossbearer link via the transmission mechanism of being located in the plantation case at the plantation driving shaft (9) at the rear portion of above-mentioned plantation case (8)
It is characterized in that,
Above-mentioned plantation case (8) constitutes tubular long on the integrated fore-and-aft direction, and, support between the position at the front end linking part of plantation frame above-mentioned plantation case (8) and above-mentioned (6) binding and the axle of power shaft (20), be formed with the next door (8d) of separating before and after the plantation case inside, the rear open end (8g) of plantation case (8) is by lid (46) sealing.
2. the seedling-transplanting device of rice transplanter as claimed in claim 1 is characterized in that,
Above-mentioned transmission mechanism is made of the chain-drive mechanism (21) of the above-mentioned plantation driving shaft of deceleration (9), the limit, upper end of above-mentioned plantation case (8) constitutes linearity, and the limit, lower end of plantation case (8) constitutes give prominence to stepped downwards near plantation driving shaft (9).
3. the seedling-transplanting device of rice transplanter as claimed in claim 2 is characterized in that,
Be equipped on above-mentioned chain-drive mechanism (21) band plate-like chain tensioning device (25) front end location and be limited to the fastener (51) of the inside that is integrally formed in plantation case (8).
4. the seedling-transplanting device of rice transplanter as claimed in claim 1 is characterized in that,
On above-mentioned lid (46), be provided with the outage (d) that the dismounting by fuel drain plug (49) opens and closes.
5. the seedling-transplanting device of rice transplanter as claimed in claim 3 is characterized in that,
On above-mentioned lid (46), be provided with the outage (d) that the dismounting by fuel drain plug (49) opens and closes.
6. the seedling-transplanting device of rice transplanter as claimed in claim 5 is characterized in that,
The rear end of above-mentioned chain tensioning device (25) is by the end bearing of above-mentioned fuel drain plug (49).
7. as the seedling-transplanting device of each described rice transplanter in the claim 1～6, it is characterized in that,
In the periphery of the rear open end (8g) of above-mentioned plantation case (8), be provided with and spread all over the projecting strip part (50) of complete cycle ground around above-mentioned lid (46).
8. the seedling-transplanting device of rice transplanter as claimed in claim 1 is characterized in that,
In above-mentioned rice transplanting mechanism, the pawl case (11) that possesses plantation pawl (12) rotates ground axle suspension freely and is installed on and constitutes two both ends of cutting apart the rotary box (10) of structure, in be loaded on variable speed gear drive (53) and above-mentioned pawl case (11) interlock binding in the above-mentioned rotary box, along with the rotation of above-mentioned rotary box (10) to certain orientation, above-mentioned pawl case (11) rotates with non-uniform velocity synchronously to the direction opposite with the direction of rotation of rotary box (10)
Rotary box (10) is provided with the axle supporting linking part that inserts and link the plantation driving shaft (9) of the rotation above-mentioned rotary box of driving (10), and, the outstanding cyclic rib (94) that is provided with around this supporting linking part on the inner surface of rotary box (10) or outer surface.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005259258 | 2005-09-07 | ||
| JP2005259258A JP4528229B2 (en) | 2005-09-07 | 2005-09-07 | Rice transplanter planting mechanism |
| JP2005273809 | 2005-09-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1926940A CN1926940A (en) | 2007-03-14 |
| CN100415072C true CN100415072C (en) | 2008-09-03 |
Family
ID=37857195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100715419A Active CN100415072C (en) | 2005-09-07 | 2006-03-28 | Seedling-transplanting device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4528229B2 (en) |
| CN (1) | CN100415072C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5462676B2 (en) * | 2010-03-18 | 2014-04-02 | ヤンマー株式会社 | Rice transplanter's rotary planting equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11299314A (en) * | 1998-04-21 | 1999-11-02 | Mitsubishi Agricult Mach Co Ltd | Seedling planting apparatus |
| JP2000041433A (en) * | 1998-07-28 | 2000-02-15 | Kubota Corp | Structure of planting case |
| JP2002253013A (en) * | 2001-03-06 | 2002-09-10 | Mitsubishi Agricult Mach Co Ltd | Structure of planter case in transplanter |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0359624U (en) * | 1989-10-13 | 1991-06-12 | ||
| JPH074931U (en) * | 1993-06-21 | 1995-01-24 | ダイハツ工業株式会社 | Bearing case |
| JP3294133B2 (en) * | 1996-12-12 | 2002-06-24 | 株式会社クボタ | Seedling planting mechanism |
| JP3294136B2 (en) * | 1996-12-12 | 2002-06-24 | 株式会社クボタ | Seedling planting mechanism |
| JP3691233B2 (en) * | 1997-12-17 | 2005-09-07 | 三菱農機株式会社 | Transplanter |
| JP2001033286A (en) * | 1999-07-22 | 2001-02-09 | Aichi Tokei Denki Co Ltd | Dry-type water-meter |
| JP4502428B2 (en) * | 1999-09-02 | 2010-07-14 | 株式会社クボタ | Rice transplanter seedling planting tools |
-
2005
- 2005-09-07 JP JP2005259258A patent/JP4528229B2/en not_active Expired - Fee Related
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2006
- 2006-03-28 CN CNB2006100715419A patent/CN100415072C/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11299314A (en) * | 1998-04-21 | 1999-11-02 | Mitsubishi Agricult Mach Co Ltd | Seedling planting apparatus |
| JP2000041433A (en) * | 1998-07-28 | 2000-02-15 | Kubota Corp | Structure of planting case |
| JP2002253013A (en) * | 2001-03-06 | 2002-09-10 | Mitsubishi Agricult Mach Co Ltd | Structure of planter case in transplanter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1926940A (en) | 2007-03-14 |
| JP2007068468A (en) | 2007-03-22 |
| JP4528229B2 (en) | 2010-08-18 |
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