CN102259589A - Transmission Mechanism Of Workover Rig - Google Patents
Transmission Mechanism Of Workover Rig Download PDFInfo
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- CN102259589A CN102259589A CN2010102958318A CN201010295831A CN102259589A CN 102259589 A CN102259589 A CN 102259589A CN 2010102958318 A CN2010102958318 A CN 2010102958318A CN 201010295831 A CN201010295831 A CN 201010295831A CN 102259589 A CN102259589 A CN 102259589A
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Abstract
The invention relates to a transmission mechanism of a workover rig which makes the transmission mechanism transmitting power from a generator to an oil hydraulic pump and a mobile mechanism as well as an operational mechanism operating the transmission mechanism to be smaller in volume. A rotating drive shaft driven by the power of the generator and a pump of the hydraulic pump are in a connection. A plurality of upstream side gears is disposed along an axial direction on an upstream side of the transmission mechanism. And the upstream side gears are installed on the drive shaft in an embedded manner. The upstream side gears can rotate freely on the drive shaft relatively to the drive shaft. A plurality of change gears in a downstream side of the transmission mechanism are installed on a driven shaft in an embedded manner and the change gears can rotate with the driven shaft as a whole and slide freely. A main clutch is installed on the drive shaft in an embedded manner and is operated to switch freely from a transmission state of the upstream gear which transmits the power of the drive shaft to one end of the axial direction and an cut-off state which cutting off the power transmission.
Description
Technical field
The present invention relates to a kind of drive mechanism of working rig, be used for and be passed to mobile devices from the power of driving engine via master clutch and gear type transmission system, and have by from the power driven of driving engine and to the oil pressure pump of oil pressure actuator supply pressure oil.
Background technology
The working rig of said structure was in that structure was as follows: the axle drive shaft that is passed to the transmission upstream side of gear type transmission system from the power of driving engine via the belt transmission that is also used as belt tension (belt tension) the formula power-transfer clutch that constitutes master clutch in the past, the outer embedding of the upstream side gear of gear type transmission system is installed on the axle drive shaft, and can rotate freely with the axle drive shaft one, be installed on the driven shaft with the outer embedding of the variable gear in the downstream of upstream side gear mesh, the variable gear in this downstream can rotate freely with the driven shaft one, and is free to slide (for example with reference to patent documentation 1) by the operation of variable speed operation member along axis direction.And the working rig of patent documentation 1 record has at the rear portion of the body that travels by as the oil cylinder of oil pressure actuator and the apparatus for work of free lifting, and, also have the oil pressure pump that is used for supplying with power fluid to oil cylinder.
And, though not record in patent documentation 1, but working rig in the past forms following structure, promptly, with the transmission of power of the driving engine belt transmission to the gear type transmission system is separated, be provided in addition the transmission of power of driving engine the driving device (for example with reference to patent documentation 2) that pump drives that is exclusively used in to oil pressure pump.
The prior art document:
Patent documentation 1:JP spy opens flat 5-169998 communique;
Patent documentation 2:JP spy opens flat 10-288150 communique.
In above-mentioned existing structure, has following shortcoming, promptly, constitute master clutch because be by belt tension clutch, maximize so that tension wheel moves between clutch position and declutched position on a large scale and keep the power-transfer clutch of tension wheel to connect from operating structure at this engage position or disengaged position, and, because also need to be used for the transmission of power of driving engine the driving device that pump drives that is exclusively used in to oil pressure pump, thus be used for from the transmission of power of driving engine to the transmission device of oil pressure pump and mobile devices and the operating mechanism that is used to operate transmission device maximize.
Summary of the invention
The object of the present invention is to provide can make with from the transmission of power of driving engine to the transmission device of oil pressure pump and mobile devices be used to operate the drive mechanism of working rig of the operating mechanism miniaturization of this transmission device.
Working rig drive mechanism of the present invention, to be passed to mobile devices via master clutch and gear type transmission system from the power of driving engine, and, have by from the power driven of driving engine and to the oil pressure pump of oil pressure actuator supply pressure oil, wherein, its first feature structure is, make by the power driven of described driving engine and the pump axle drive shaft of drive shaft rotating and described oil pressure pump is connected, a plurality of upstream side gears of the transmission upstream side in the described transmission system respectively with arrange along the axis direction of described axle drive shaft and each upstream side gear is supported on the described axle drive shaft and the state that can rotate freely with respect to described axle drive shaft outside embedding be installed on the described axle drive shaft, and, adjacent upstream side gear is connected to each other and rotates with one, and, the outer embedding of a plurality of variable gears in the transmission downstream of described transmission system is installed on the driven shaft, a plurality of variable gears in described transmission downstream can rotate freely with the driven shaft one, and the operation by the variable speed operation member can be free to slide on axis direction, the outer embedding of described master clutch is installed on the described axle drive shaft, this master clutch is operated and can and cuts off at drive state and freely switches between the dissengaged positions of transmission of power, and described drive state is meant the transmission of power of the described axle drive shaft state that is positioned at the distolateral upstream side gear of axis direction one in a plurality of upstream side gears of described axis direction arrangement extremely.
According to first feature structure, make the power driven of launched machine and the axle drive shaft and the pump axle drive shaft that are rotated are connected, so if engine operation just drives oil pressure pump.
Because a plurality of upstream side gears that outer embedding is installed on the axle drive shaft can directly or via outer embeddings such as needle bearings be installed on the axle drive shaft with respect to axle drive shaft with rotating freely, so when master clutch switches to dissengaged positions, even being driven, axle drive shaft is rotated, a plurality of upstream side gears are not driven yet, thereby power can not be passed to driven shaft.
Because being connected to each other, rotate by a plurality of upstream side gears with one, so when master clutch switches to drive state, the rotary power that forms axle drive shaft is via being positioned at the state that the distolateral whole a plurality of upstream side gears of upstream side gear drive are rotated on the axis direction, like this, all be driven under the state that is rotated at a plurality of upstream side gears, variable gear is operated and slides, optionally with a plurality of upstream side gears mesh, thus speed change rotary power be passed to driven shaft.
Like this, axle drive shaft is not only brought into play the function of the power transmission shaft that is used to drive oil pressure pump, also performance is used to support the function of pivot shaft of a plurality of upstream side gears of transferring power of the slave end of master clutch and master clutch, with during engine operation driven always pump be set respectively separately in order to drive oil pressure pump compare with transmission shaft separates the transmission shaft that makes the slave end that drive state changes with joint by master clutch structure, can reduce the quantity of transmission shaft, thereby realize the miniaturization of transmission device.
If specify, the transmission shaft that separates the slave end that makes the drive state change as joint by master clutch, can form urceolus axle cylindraceous can outside the mode that described axle drive shaft freely rotates, be embedded in the dual barrel structure on this axle drive shaft, the a plurality of upstream side gears of embedding outside this urceolus axle upper spline cylindraceous, according to said structure, compare with such structure, do not need urceolus axle cylindraceous, can reduce the quantity of transmission shaft, thereby realize the miniaturization of transmission device.
In addition, the outer embedding of master clutch is installed on the axle drive shaft, and this master clutch is operated and can and switches at drive state and freely switch between the dissengaged positions of transmission of power, and described drive state is meant the transmission of power of axle drive shaft to the state that is positioned on the axis direction a distolateral upstream side gear.This master clutch for example is made of friction clutch or engaged clutch etc., the distance of operating the power-transfer clutch of this structure and only making friction lining or mesh component etc. move weak point on axis direction just can be switched drive state and dissengaged positions, compare with the belt tension power-transfer clutch, can make the operating mechanism miniaturization.
Thereby, can provide make with from the transmission of power of driving engine to the transmission device of oil pressure pump and mobile devices be used to operate the drive mechanism of working rig of the operating mechanism miniaturization of this transmission device.
Second feature structure of the present invention is that on the basis of first feature structure, described master clutch is made of the multi-disc friction type power-transfer clutch.
According to second feature structure, the multi-disc friction type power-transfer clutch has a plurality of drive side friction linings and a plurality of slave end friction lining, not only increased the area of contact that the transmission between drive side friction lining and the slave end friction lining is used, and can reduce oad, and,, small-sized thereby operating structure becomes because can shorten the distance that friction lining moves on axis direction, thus, can make the transmission device miniaturization.
The 3rd feature structure of the present invention is, on the basis of first feature structure or second feature structure, have the portion that is stuck that engages with described variable speed operation member, the described portion of being stuck is the state of the end of the side on the axis direction that is positioned at the described driven shaft on the described variable gear.
According to the 3rd feature structure, variable gear has the portion of being stuck, this portion of being stuck is the state of the end of the side's side on the axis direction that is positioned at driven shaft, and the variable speed operation member is fastened on this and is stuck in the portion, and the operation variable gear moves on the axis direction of driven shaft.
Variable gear for example has two kinds of different wheels tooth of the outside diameter of gear, if make the portion of being stuck be positioned at pars intermedia on the axis direction of two kinds of wheels tooth, then need be set to separating the state of being wider than the width on the variable gear axis direction on the axis direction at least with two kinds of wheel tooth ingear upstream side gears.
With respect to this, in the 3rd feature structure, because the portion of being stuck is positioned at the end of the side's side on the axis direction of driven shaft, so two kinds of wheels tooth are set to state approaching on axis direction, the state that only is set to separate the width of two kinds of wheels tooth on axis direction with two kinds of wheel tooth ingear upstream side gears gets final product, compare with the situation that makes the portion of being stuck be positioned at two kinds of wheels tooth centres, can on axis direction, shorten the distance of the width that is equivalent to the portion that is stuck, thus, can make the transmission device miniaturization.
The 4th feature structure of the present invention is that on the basis of the 3rd feature structure, described a plurality of variable gears described portion of being stuck separately forms the state of the end of the same side on the axis direction that is positioned at described driven shaft.
According to the 4th feature structure, because a plurality of variable gears portion of being stuck separately is positioned at the end of the same side on the axis direction of driven shaft, be set to approaching state so can be fastened on a plurality of variable speed operation members that respectively are stuck in the portion, be combined in the operating mechanism miniaturization that respectively is stuck a plurality of variable speed operation members in the portion thereby can be used in operation sheet.
The 5th feature structure of the present invention is, in first～the 4th feature structure on the basis of any, adjacent a pair of upstream side gear in the described transmission system, make under the approximating state of wheel tooth portion, connecting pin embedded along the axis direction of described axle drive shaft be installed in each other, the adjacent a pair of upstream side gear in the described transmission system is connected rotates thus with one at the radial outer end portion of wheel tooth portion and the gear side wall portion between the radial inner end.
According to the 5th feature structure, under the approximating state of wheel tooth portion with adjacent a pair of upstream side gear, by connecting pin being embedded so simple structure in the gear side wall portion that is installed in each other, the space that on axis direction, can not have waste, thereby can form by being connected so that the seamlessly approaching state of a pair of upstream side gear of their one rotation, a plurality of upstream side gears are configured on the axis direction of axle drive shaft compactly, thus, can make the transmission device miniaturization.
The 6th feature structure of the present invention is, in first～the 5th feature knot on the basis of any, described axle drive shaft and described pump axle drive shaft are connected via relay axis, and, embedding is equipped with the power reverse gear that speed change is used that retreats of described transmission system outside on this relay axis, and this power reverse can rotate freely with respect to described relay axis with gear, described axle drive shaft, described driven shaft, described relay axis is configured in the transmission gearbox respectively, make described axle drive shaft more lean on lower side than described driven shaft, described axle drive shaft and described driven shaft are arranged in the horizontal direction, and described relay axis is positioned at the top of described axle drive shaft.
According to the 6th feature structure, because axle drive shaft and pump axle drive shaft are connected via relay axis, so relay axis is driven when engine operation and is rotated always, but utilize the outer embedding of this relay axis to install and retreat the power reverse gear that speed change is used, relay axis is also used as to be used to support retreats power reverse that speed change uses with the axle of gear and the relay axis of pump driving usefulness, thereby can make the transmission device miniaturization.
In addition, because axle drive shaft, driven shaft, relay axis are configured in the transmission gearbox respectively, make axle drive shaft more lean on lower side than driven shaft, axle drive shaft and driven shaft are arranged in the horizontal, and relay axis is positioned at the top of axle drive shaft, thereby the spatial allocation relay axis of the upper side by utilizing axle drive shaft, thereby can make the compact in size of transmission gearbox in the orientation of axle drive shaft and driven shaft, thus, can make the transmission device miniaturization.
Description of drawings
Fig. 1 is the unitary side view of saddle type rice transplanter.
Fig. 2 is the whole birds-eye view of saddle type rice transplanter.
Fig. 3 is the cross-sectional birds-eye view of gearbox body.
Fig. 4 is the cross-sectional birds-eye view of gearbox body.
Fig. 5 is near the cross-sectional birds-eye view of output shaft of gearbox body.
Fig. 6 is the lateral plan of the bindiny mechanism that uses of expression variable speed operation.
Fig. 7 is the cross-sectional birds-eye view of gearbox body.
Fig. 8 is the lateral plan of the front portion of gearbox body.
Fig. 9 is the birds-eye view of the front portion of gearbox body.
Figure 10 is the lateral plan of attended operation mechanism.
Figure 11 is the front view of attended operation mechanism.
Figure 12 is the vertical profile front view of attended operation mechanism.
Figure 13 is the cross-sectional birds-eye view of attended operation mechanism.
Figure 14 represents the birds-eye view of lever operated guide portion.
Figure 15 is the exploded perspective view of the part of attended operation mechanism.
Figure 16 is the birds-eye view of the variable speed operation state of expression gear change hand lever.
Figure 17 is the figure of the correlationship between the expression gear and the speed of a motor vehicle.
The specific embodiment
Based on accompanying drawing the situation that the embodiment of the drive mechanism of working rig of the present invention is used for saddle type rice transplanter is described below.
As shown in Figure 1, as mobile devices, the oil cylinder 4 that has connecting rod mechanism 3 and 3 liftings of drive link mechanism at the rear portion of the body A that travels with pair of right and left front-wheel 1 and pair of right and left trailing wheel 2 as actuator, in the back support of connecting rod mechanism 3 seedling growing device 5 as apparatus for work is arranged, thereby constitute saddle type rice transplanter as an example of working rig.
As shown in Figure 1, seedling growing device 5 has transmission gearbox 6, be supported on the rear portion of transmission gearbox 6 and can be driven and rotate freely plant case 7, be formed on a pair of arm 8, ground connection hull 9 and the seedling carrying base 10 etc. of planting of planting case 7 two ends, along with seedling carrying base 10 be driven and about reciprocal cross-feed, plant case 7 and be driven and rotate, plant arm 8 and alternatively take out rice shoot and plant on the face of field from the bottom of seedling carrying base 10.
As shown in Figure 1, the hopper 12 and the unloading part 13 that store fertilizer are fixed on the rear side of driving seat 11, have blowing engine 14 at the downside of driving seat 11.In addition, on ground connection hull 9, has the ditch of work device 15, at unloading part 13 and make to be connected with between the ditch device 15 flexible pipe 16, along with planting of above-mentioned rice shoot, send the fertilizer of specified amount by unloading part 13 from hopper 12 at every turn, air-supply by blowing engine 14 makes fertilizer be supplied to by flexible pipe 16 and makes ditch device 15, and fertilizer is supplied to the field face via making ditch device 15.
As shown in Figure 1, be fixed with gearbox body 17A in the front portion of the body A that travels, supporting bracket 18 upper supports in the front portion that is connected in gearbox body 17A have driving engine 19.Horizontal sidepiece is connected with left and right sides front truck axle box 20 about gearbox body 17A, left and right sides front-wheel 1 with can around the longitudinal axis of left and right sides front truck axle box 20 freely control this left and right sides front-wheel 1 towards mode supported.
Then, drive mechanism is described.As Fig. 3～shown in Figure 5, the power of driving engine 19 is passed to the axle drive shaft 71 that the transmission gearbox 17B that uses with the anterior horizontal side bonded assembly transmission system of gearbox body 17A is had via drive belt 70, the power of this axle drive shaft 71 is passed to as the gear type main transformer quick-mounting of driving transmission via master clutch 72 and puts 21, put 21 power that carried out speed change by the main transformer quick-mounting and be passed to front-wheel 1 and trailing wheel 2 via secondary speed-changing device 74, on the other hand, put 21 power that carried out speed change via driving transmission between strain 50 with plant power-transfer clutch 57 and be passed to seedling growing device 5 by the main transformer quick-mounting.
On input belt wheel 70B, be formed with: belt wheel main part 70Ba, it forms along the cone shape of the outside face of coniform the 17BT of outside case part 17Ba; The belt coiling 70Bb of portion, it is provided in the periphery of this belt wheel main part 70Ba.Be formed with the recess 70Bc of cone shape in the inboard of belt wheel main part 70Ba, under the part of coniform the 17BT of outside case part 17Ba enters state among this recess 70Bc, input belt wheel 70B be connected with axle drive shaft 71.Thus, formed the input belt wheel 70B big more space Q of the distance on the axis direction of axle drive shaft 71 between outer circumferential side and cooling fan 70C more, in the Q of this space, make cooling air that cooling fan 70C produces pass to the lateral outer side of transmission gearbox 17B, thereby can cool off the lateral external surface of transmission gearbox 17B efficiently by compact design with the state flow that is difficult for being transfused to belt wheel 70B and hinders.
The main transformer quick-mounting is put 21 and is constituted and can freely switch to ease ahead speed change state (below be called advance first grade), middling speed advance speed change state (below be called advance second grade), the speed change state that advances at utmost speed (below be called the third gear of advancing) and retreat speed change state (below be called fallback state) by will the travel speed change state of travelling of body A of operation, that is to say, can freely switch to and advance 3 shelves and retreat these 4 gears of 1 shelves.
Promptly, as shown in Figure 3, the main transformer quick-mounting is put in 21, axle drive shaft 71, speed change output shaft 75, counter-rotating with relay axis 76 each comfortable rotation axis towards being supported on respectively on the transversely arranged direction on the transmission gearbox 17B, and axle drive shaft 71, speed change output shaft 75, counter-rotating can rotate freely with relay axis 76.And, two upstream side gears 77,78, respectively with arrange along the axis direction of axle drive shaft 71 and upstream side gear 77,78 respectively being supported on state on the axle drive shaft 71 via needle bearing 149 with respect to axle drive shaft 71 free rotation mode, outer embedding is installed on the axle drive shaft 71, and, above-mentioned two upstream side gears 77,78 form be connected with can one the state of rotation.
At two upstream side gears 77, have on the upstream side that is positioned at master clutch 72 1 sides first gear 77 in 78 as the driven wheel portion 79 of the first grade of usefulness of advancing of wheel tooth portion and the driven wheel portion 80 of the second grade of usefulness of advancing, on upstream side second gear 78 that is positioned at master clutch 72 opposite sides, have driven wheel portion 81 that uses as the third gear of advancing of wheel tooth portion and the driven wheel portion 82 that retreats usefulness, wherein, the driven wheel portion 82 that retreats usefulness forms and relay gear 84 ingear states, and this relay gear 84 can be supported on counter-rotating with on the relay axis 76 via bearing 83 with rotating freely.
By connecting pin 85 being embedded in the driven wheel portion 81 that the third gear of advancing of the driven wheel portion 80 of the second grade of usefulness of advancing that is installed in adjacent mutually upstream side first gear 77 and upstream side second gear 78 uses along the axis direction of axle drive shaft 71, thus, two upstream side gears 77,78 are connected can one rotating.
Further be specifically described, for two adjacent upstream side gears 77,78, under the approaching state of the driven wheel portion that uses in the third gear of advancing that makes upstream side first gear 77 81 as wheel tooth portion as the driven wheel portion 80 of the second grade of usefulness of advancing of wheel tooth portion and upstream side second gear 78, and, along the axis direction of axle drive shaft 71 with connecting pin 85 embed be installed in driven wheel portion 80 in the gear side wall portion between radial outer end portion and radial inner end of the driven wheel portion 81 that the gear side wall portion between radial outer end portion and the radial inner end and the third gear of advancing are used, thereby with two adjacent upstream side gears 77,78 are connected can one rotating.
In addition, on speed change output shaft 75 outside embedding two variable gears 86,87 are installed, these two variable gears 86,87 can one rotate freely, and by the operation can on axis direction, be free to slide.The driven gear portion 89 that has the driven gear portion 88 of the first grade of usefulness of advancing and the second grade of usefulness of advancing on the first stud gear 86 that is positioned at master clutch 72 1 sides in two variable gears 86,87 has driven gear portion 90 that the third gear of advancing uses and the driven wheel portion 91 that retreats usefulness on the second stud gear 87 that is positioned at master clutch 72 opposite sides.
That is to say, when second stud gear 87 being operated to Neutral Position and first stud gear 86 is operated to first P PARK Position P, switch to and advance first grade, when second stud gear 87 being operated to Neutral Position and first stud gear 86 is operated to second P PARK Position P, switch to and advance second grade, when first stud gear 86 being operated to Neutral Position and second stud gear 87 is operated to the third gear position, switch to the third gear of advancing, when first stud gear 86 being operated to Neutral Position and second stud gear 87 is operated to going-back position, switch to fallback state.
As shown in Figure 7, be used to operate first stud gear 86 moves it on axis direction the first variable speed operation member 92, be integrally formed on the control lever 94, control lever 94 can be supported on the gearbox body 17A with being free to slide, and by ball detent (ball detent) mechanism B holding position, slide by operating this control lever 94, first stud gear 86 freely can be switched to described 3 positions.In addition, being used to operate second stud gear 87 makes its second mobile on axis direction variable speed operation member 93 also identical with the first variable speed operation member 92, be formed on the control lever 95, this control lever 95 constitutes the B holding position by ball detent mechanism, slide by operating this control lever 95, second stud gear 87 freely can be switched to described 3 positions.Described each control lever 94,95 forms the state of giving prominence in the outside of transmission gearbox 17B, the operating structure back narration of above-mentioned control lever 94,95.
Described variable gear 86,87 constitutes, and makes the k of the portion that is stuck that engages with variable speed operation member 92,93 form the state of the end of a side on the axis direction that is positioned at speed change output shaft 75.That is, two variable gear 86,87 k of the portion that is stuck separately form the state of the end (Fig. 7 is positioned at the end in left side) of the same side on the axis direction that is arranged in speed change output shaft 75.And as shown in Figure 3, when variable gear 86 was in Neutral Position, from observing perpendicular to the direction of speed change output shaft 75 axis, the k of the portion that is stuck of variable gear 86 was in the state overlapping with the driven wheel portion 79 of the first grade of usefulness of advancing.In addition, when variable gear 87 was in Neutral Position, from observing perpendicular to the direction of speed change output shaft 75 axis, the k of the portion that is stuck of variable gear 87 was in the overlapping state of the driven wheel portion that uses with the third gear of advancing 81.
As shown in figure 17, the main transformer quick-mounting is put 21 and is constituted, the converter speed ratio α 3 of the third gear of advancing (F3) and the poor Δ α b of the poor Δ α a of the converter speed ratio α 2 of advance second grade (F2) less than the converter speed ratio α 1 of the converter speed ratio α 2 of advance second grade (F2) and advance first grade (F1).
If describe in detail, as shown in figure 17, to connect the state of initial point and the straight line L of the third gear F3 that advances, in other words, with the constant state of the difference of converter speed ratio, compare with the situation that each converter speed ratio of a plurality of gears is set, the converter speed ratio α 2 that forms advance second grade (F2) sets greatly, the state that the converter speed ratio α 1 of advance first grade (F1) sets for a short time.
And secondary speed-changing device 74 switches to high-speed side and is meant that the converter speed ratio of secondary speed-changing device 74 is set to form is not suitable for the moving velocity that suits to travel travelling on the field on highway.Thereby, when in the field, carrying out operation, keep the state that secondary speed-changing device 74 switches to low speed side.
Then, illustrate that the main transformer quick-mounting puts 21 variable speed operation structure.
As Fig. 2 and shown in Figure 6, the leftward position of steering dish 98 that is arranged at the bearing circle pillar 97 of body manoeuvre portion 96 front portions in setting has and is used to operate the main transformer quick-mounting and puts 21 gear change hand lever 99, can be along bullport 152 these gear change hand levers 99 of operation.
As shown in figure 16, this gear change hand lever 99 is operated and can freely switches to and the main transformer quick-mounting is put 21 switches to first grade the ease ahead operating position (below be called first P PARK Position P (F1) that advances) of advancing, the main transformer quick-mounting is put 21 to switch to and advances second grade middling speed forward operation position (below be called second P PARK Position P (F2) that advances) and the main transformer quick-mounting put each position of 21 operating positions that advance at utmost speed that switch to the third gear of advancing (below be called the third gear position (F3) of advancing), and, the main transformer quick-mounting is put 21 switches to the back operation position (R) of fallback state and the third gear position (F3) of advancing and be arranged on along with along body forward-and-rearward move operation and the mutual state of blocked operation position in opposite directions.
Gear change hand lever 99 has: vertical shaft part 99a, and it is configured to be communicated with up and down the state of the peristome 97A of the elongated rectangle in the front and back that form on the upper surface of bearing circle pillar 97 lateral sides; Handle part 99b, it is arranged on the extension end of this vertical shaft part 99a.Vertical shaft part 99a of gear change hand lever 99 extends to the top of lateral outer side obliquely from the connection on the peristome 97A, and this elongated end bending is extended obliquely to the back upper place.The handle part 99b of gear change hand lever 99 with observe from the side and state configuration that steering dish 98 is overlapping near the outer circumference end of steering dish 98.Thus, the handle guiding piece that stretches out towards the horizontal side and the rear side of bearing circle pillar 97 etc. is not set, makes bearing circle pillar 97 peripheral densifications, and the handle part 99b of gear change hand lever 99 can be configured near the position of the easy operating the steering dish 98.
And, have and connect gear change hand lever 99 and main transformer quick-mounting and put 21 attended operation mechanism 101, make gear change hand lever 99 with supported by the operation mode that can on body left and right directions and body fore-and-aft direction, freely swing respectively, be rocked under the state of left from Neutral Position N at gear change hand lever 99, gear change hand lever 99 is operated to the place ahead, thereby switch to the third gear position (F3) of advancing, gear change hand lever 99 is operated to the rear, thereby switches to back operation position (R).
The following describes attended operation mechanism 101.As shown in Figure 6, attended operation mechanism 101 is set to be positioned at the state at the base end side place of bearing circle pillar 97 in-to-in gear change hand levers 99.And, as Figure 10～Figure 12, shown in Figure 15, observe the load-carrying element 100 upper edge body left and right directions be approximate " U " word shape in the side and set up and be supported with pivot shaft 103, wherein, load-carrying element 100 is fixed on from the longitudinal carrier 102 extended framework 102A of bearing circle pillar 97.First boss member 104 is arranged and first boss member 104 can be rotated freely in these pivot shaft 103 upper supports, this first boss member 104 is used for can supporting gear change hand lever 99 around the mode that axis of pitch X1 freely rotates with gear change hand lever 99, the upper end that is fixed on the attaching parts 105 on this first boss member 104 in one is connected with second boss member 106, and this second boss member 106 is used for can supporting gear change hand lever 99 around the mode that front and back axis X2 freely rotates with gear change hand lever 99.
Attended operation mechanism 101 has the interlock control member 107 that pole bending is constituted for " L " word roughly, the top 107A of the fore-and-aft direction posture of this interlock control member 107 is being installed in second boss member 106 with respect to the mode that second boss member 106 is freely rotated is embedded, and, the bottom 107B above-below direction posture of this interlock control member 107 is extended downwards, one is fixedly connected with and connects with member 153 on this interlock control member 107, and this connection is connected on the bottom of gear change hand lever 99 with stationary state with member 153.That is to say, this interlock control member 107 form be operated and can with the structure of gear change hand lever 99 one swings.
Thereby, gear change hand lever 99 is supported on the load-carrying element 100, and be operated around axis (axis of pitch X1) rotation by pivot shaft 103, can on the body fore-and-aft direction, freely swing, and be operated around axis (front and back axis X2) rotation by second boss member 106, can on the body left and right directions, freely swing.
As Figure 10～Figure 13, shown in Figure 15, place, the left and right sides in first boss member 104 of pivot shaft 103 has first transom 109 and second transom 108, and it is can be around the mode that the axis X 1 of pivot shaft 103 is freely rotated supported that this first transom 109 and second transom 108 are.First transom 109 has: the 109A of pivot branch, and it can be supported on the pivot shaft 103 freely to rotate; The 109B of snap action portion, it forms for approximate " L " word shape from the 109A of this pivot branch one extension downwards and bending; Operating portion 109C, from the 109A of pivot branch rearward one extend and pivotal support ground is connecting the distolateral of pull bar 111.Second transom 108 and first transom 109 are same, have the distolateral operating portion 108C that the 108A of pivot branch, the 108B of snap action portion and pivotal support ground is being connected pull bar 110.
As Fig. 7～shown in Figure 9, near the control lever 94 that the variable speed operation of gearbox body 17A is used foreign side's side has the rotating operation axle 112 that can freely rotate around self axis, to connect another of pull bar 110 distolateral with supporting being formed at motion arm 113 head lamp brush guard pivots on the side of this rotating operation axle 112, have card at the opposite side of rotating operation axle 112 and end the control member 114 that acts among the 94A of the portion that is operated at control lever 94, along with push-and-pull operation pull bar 110 up and down, rotating operation axle 112 rotates and can slide by operating operation bar 94.
The control lever 95 that variable speed operation is used is also identical with control lever 94, have the rotating operation axle 115 that can freely rotate around self axis, pivotal support connecting pull bar 111 another distolateral motion arm 116, block the control member 117 that only in the 95A of the portion that is operated of control lever 95, acts on, along with push-and-pull operation pull bar 111 up and down, rotating operation axle 115 rotates and can slide by operating operation bar 95.
As Figure 11 and shown in Figure 12, first transom 109 and second transom 108 have the 108B of snap action portion, 109B and operating portion 108C, the 109C that forms by bending sheets separately, the 108B of snap action portion of the 109B of snap action portion of first transom 109 and second transom 108, the leading section that forms their lower side toward each other and aspectant state, and first transom 109 and second transom 108 are formed with the engaging recessed part 119,120 that interlock control member 107 engages by swinging chimericly separately.In addition, one is welded with rod member 121,122 respectively on each 108B of snap action portion, 109B, and this rod member the 121, the 122nd forms along the inner edge portion bending pole of the engaging recessed part 119,120 that is used to engage interlock control member 107.
And, as shown in figure 13, first transom 109 and second transom 108 (specifically, be weldingly fixed on integratedly on first transom 109 and second transom 108 rod member 121,122) form at body fore-and-aft direction (the paper above-below direction among Figure 13) and go up the state overlapping with the interlock control member 107 that is in Neutral Position.
As shown in figure 14, on the bottom surface sections 100A of the bottom of described load-carrying element 100, formed and had sway path L1, the left side moves forward and backward the handle bullport 123 that path L2 and right side move forward and backward path L3, bottom surface sections 100A by this load-carrying element 100 constitutes lever operated guide portion G, wherein, sway path L1 is for allowing interlock control member 107 from the path of Neutral Position to the operation of body left and right directions, the left side moves forward and backward path L2 for allowing interlock control member 107 from the left end position of this sway path L1 to the path of body fore-and-aft direction operation, the right side move forward and backward path L3 for allow with interlock control member 107 from the right-hand end position of described sway path L1 the path to the operation of body fore-and-aft direction.
But, the moving direction of interlock control member 107 is opposite with the moving direction of gear change hand lever 99, and when to left swing gear change hand lever 99, interlock control member 107 is to right-hand swing, when forwards swinging gear change hand lever 99, interlock control member 107 is rearward swung.
In the attended operation mechanism 101 of said structure, interlock control member 107 is under the state of the right-hand end position that is rocked to sway path L1 from Neutral Position, by operating to the body fore-and-aft direction, first transom 109 is operated by interlock, and, interlock control member 107 is under the state of the left end position that is rocked to sway path L1 from Neutral Position, by operating to the body fore-and-aft direction, interlock is operated second transom 108, operation by first transom 109, the main transformer quick-mounting is put 21 and is switched between third gear and the fallback state advancing, and, by the operation of second transom 108, the main transformer quick-mounting is put 21 and is being advanced second grade and advance and switch between first grade.
In addition, whether switch to the fallback state detecting sensor S that fallback state detects and be used for detecting first transom 109 of attended operation mechanism 101, put 21 and switch to fallback state thereby can detect the main transformer quick-mounting by the main transformer quick-mounting being put 21.
Promptly, as shown in figure 10, has the fallback state detecting sensor S that is the state that is supported on the load-carrying element 100 in the front side position of first transom 109, when first transom 109 is operated side oscillation forwards, first transom 109 contacts with fallback state detecting sensor S, puts 21 and has switched to fallback state thereby can detect the main transformer quick-mounting by fallback state detecting sensor S.Like this, form the structure that first transom 109 is also used as the detection effect member of fallback state detecting sensor S.
When utilizing this fallback state detecting sensor S to detect to retreat motoring condition, so that rising to the mode of maximum hoisting position, seedling growing device 5 controls the action of pressure control valve V to oil cylinder 4 as the control setup H of the control unit that the running of each several part is controlled.In addition, though it is unspecified, but control setup H forms following structure, promptly, when in the field, travelling operation, the amount of moving up and down that changes changing based on the ground pressure of center-point earth hull 9 detects, and controls the lifting control of oil cylinder 4 for seedling growing device 5 is maintained setting value with respect to the height of field face.
Attended operation mechanism 101 has: neutral gear force application mechanism 125, it is positioned under the state of sway path L1 interlock control member 107 (gear change hand lever 99), in the L1 of sway path, under the state of operation interlock control member 107 (gear change hand levers 99), interlock control member 107 (gear change hand lever 99) is pushed the application of force so that it restores to Neutral Position from the left and right directions both sides overcoming application force by M/C; Mobile limiting member 124, it switches to active state when restoring to Neutral Position at interlock control member 107, when the application force that overcomes neutral gear force application mechanism 125 is operated to the left end position of sway path L1 or right-hand end position with interlock control member 107, switch to the mode of non-active state, switch linkedly with neutral gear force application mechanism 125.
Then, describe neutral gear force application mechanism 125 in detail.
As Figure 12, Figure 13 and shown in Figure 15, be fixed with the carriage 126 of approximate " コ " font in the outside of vertical wall 100B of portion of load-carrying element 100 left and right sides, be connected with to pivotal support swing arm 127 on each carriage 126 respectively, this swing arm 127 can freely swing around horizontal axis X 3.One is fixed with butt limiting member 128 in the bottom of each swing arm 127, this butt limiting member 128 is the pole bending to be formed for approximate " コ " word shape to interlock control member 107 side-prominent modes with the fore-and-aft direction outside that extends to load-carrying element 100 and front and back central portion, stretching to each other in the both sides, front and back of the butt limiting member 128 of the swing arm 127 of the left and right sides is provided with coil spring 129, this coil spring 129 with each butt limiting member 128 to the approaching direction tractive application of force mutually.
Application force by coil spring 129, the butt limiting member 128 of the left and right sides is applied in application force and is being pulled to mutual approaching direction, swing arm 127 is connected to that vertical wall 100B of portion goes up and the swing that surpasses vertical wall 100B of portion is limited, under this state, the butt limiting member 128 of the left and right sides remains on Neutral Position near being in the interlock control member 107 of Neutral Position.
In addition, when making interlock control member 107 direction or right move from Neutral Position,, it is restored towards Neutral Position left to interlock control member 107 application of forces by the application force of coil spring 129.But the application force of coil spring 129 is set to such an extent that the degree of the power of direction M/C gear change hand lever 99 is little to the left and right than overcoming this application force.
And, swing arm 127 pars intermedia up and down separately in the left and right sides is provided with mobile limiting member 124 with the fixing state of one, be at interlock control member 107 under the state of Neutral Position, this mobile limiting member 124 passes the inserting hole 130 that is formed on the load-carrying element 100, embedding is fastened in first transom 109 and the last formed engaging recessed part 119,120 of second transom 108 108B of snap action portion, 109B separately, thereby this mobile limiting member 124 limits first transom 109, second swing of transom 108 on fore-and-aft direction.
Like this, mobile limiting member 124 is arranged on the swing arm 127 with stationary state, thereby the application force that overcomes neutral gear force application mechanism 125 when interlock control member 107 is when being operated to the left end position of sway path L1 or right-hand end position, mobile limiting member 124 interlocks are swung in this, thereby the embedding engaging with respect to engaging recessed part 119,120 is disengaged, thereby switches to a cooresponding non-active state of swinging on fore-and-aft direction that allows in first transom 109 and second transom 108.
Thereby, mobile limiting member 124 constitutes as follows and switches with neutral gear force application mechanism 125 interlocks, promptly, when gear change hand lever 99 restores to Neutral Position, switch to active state, by overcoming the application force operation gear change hand lever 99 of neutral gear force application mechanism 125, when it is operated to the left end position in sway path or right-hand end position, switch to non-active state.
If describe in detail, in the master clutch 72, with the drive side member 72a of axle drive shaft 71 one rotations on have a plurality of drive side friction lining 72b, these a plurality of drive side friction lining 72b can one freely rotate, and can move freely on the axis direction of axle drive shaft 71.In addition, master clutch 72 has slave end member 72c, this slave end member 72c is entrenched on upstream side first gear 77 by spline, can freely rotate with upstream side first gear 77 one, and can move freely on the axis direction of axle drive shaft 71, have a plurality of slave end friction lining 72d on this slave end member 72c, these a plurality of slave end friction lining 72d can one freely rotate, and, can on the axis direction of axle drive shaft 71, move freely.And, above-mentioned drive side friction lining 72b and slave end friction lining 72d are configured to the state of intermeshing, application force by compression spring 131, the slave end member 72c application of force is made it on axis direction, move, carry out crimping by above-mentioned friction lining 72b, 72d thus and switch to drive state.That is to say that the application force by compression spring 131 is the clutch engagement state by the application of force.
On the drive side member 72a of master clutch 72, form coniform 72aT that axis with axle drive shaft 71 is the summit and coniform the 17BT of outside case part 17Ba separates specified gap state in opposite directions at its Outboard Sections.
And, by depressing the operating pedal of operating on the manoeuvre portion 96 that is formed on the body A that travels 132, switch to the disengaging of clutch state, if remove the operation that depresses of operating pedal 132, then switch to the clutch engagement state.
That is to say, as Fig. 6, Fig. 8 and shown in Figure 9, support operation pedal 132 and the lateral rotation pivot shaft 133 that operating pedal 132 can freely be rotated extend setting along left and right directions, and the swing arm 134 and the clutch operating arm 135 that are undertaken being had on bonded assembly pull bar 136 these rotation support shaft 133 of connection by pivotal support ground make swing arm 134 and clutch operating arm 135 interlocks.In addition, clutch operating arm 135 is being supported and can freely rotated by rotation support shaft 150, this rotation support shaft 150 is supported on the inside of gearbox body 17A, and can freely rotate around longitudinal axis, when when depressing operating operation pedal 132 operated clutch motion arms 135 and rotate, the operating parts 151 operation slave end member 72b that had by rotation support shaft 150 move its application force that overcomes compression spring 131 round about, make its separation thereby can operate master clutch 72.
In addition, operating pedal 132 constitutes when removing the entering into of operating pedal 132, and by the application force of restoring spring 137, to operating pedal 132 application of forces it is restored to original position, by the application force of compression spring 131, master clutch 72 restores and is the clutch engagement state.
Next, describe the main transformer quick-mounting being put the structure that 21 output is passed to front-wheel 1 and trailing wheel 2.
As shown in Figure 4, the transmission shaft 22 of speed change upstream side is supported on gearbox body 17A via bearing 23 and goes up and can rotate freely, and the main transformer quick-mounting is put 21 speed change output shaft 75 and the transmission shaft 22 of speed change upstream side is by the spline structure bonded assembly.
On the transmission shaft of speed change upstream side, be fixed with low speed gear 25 and high speed gear 24, on the transmission shaft 26 in speed change downstream, be embedded with variable gear 27 outside by spline structure, this variable gear 27 can with the rotation of transmission shaft 26 one, and can be free to slide.Operation variable gear 27 makes its slip, makes variable gear 27 and low speed gear 25 and high speed gear 24 engagements, and the power speed changing of the transmission shaft 22 of speed change upstream side is passed to the transmission shaft 26 in speed change downstream for two shelves of height thus.Thus, constituted and the main transformer quick-mounting can have been put 21 the free speed change of output secondary speed-changing device 74 for two shelves of height.
In addition, by the changer lever (not shown) that these secondary speed-changing device 74 operation secondary speed-changing devices are used, can operate switching at a high speed and low speed.
As shown in Figure 4, on left and right sides front truck axle box 20, relatively dispose a pair of transmission shaft 28, have box of tricks 29 between a pair of transmission shaft 28, the case 29a of box of tricks 29 is supported on the gearbox body 17A via bearing 33, and the case 29a of box of tricks 29 can rotate freely.On the transmission shaft 26 in speed change downstream, be fixed with transmission gear 30, be fixed on transmission gear 31 and transmission gear 30 engagements on the case 29a of box of tricks 29.
On the transmission shaft 28 of a side, be embedded with cylinder element 32 outside by bond structure, this cylinder element 32 can and can be free to slide with the rotation of transmission shaft 28 one, and, on the transmission shaft 28 of a side, also have be used to operate cylinder element 32 make its slip operating axis 41 and with operating axis 41 bonded assembly differential locking pedals (diff-lock pedal) (not shown).When depressing operation differential locking pedal, operating operation axle 41 makes its rotation, cylinder element 32 is operated and slides, thereby cylinder element 32 meshes with the end of the case 29a of box of tricks 29, by cylinder element 32 and the end of the case 29a of box of tricks 29 are meshed, can make box of tricks 29 form lockup states.
And the output shaft 34 that travels is formed on the rear portion of gearbox body 17A with rearwardly projecting state, is fixed on finishing bevel gear cuter 35 and finishing bevel gear cuter 36 engagements that are formed on the output shaft 34 that travels on the case 29a of box of tricks 29.As shown in Figure 1, have the back axle case 37 that supports trailing wheel 2, between the input shaft (not shown) of output shaft 34 and back axle case 37 that travels, be connected with transmission shaft 38.
That is to say, constituted following driving transmission agent, promptly, the power that the main transformer quick-mounting is put 21 speed change output shaft 75 is passed to front-wheel 1 via secondary speed-changing device 74, box of tricks 29, transmission shaft 28, and the main transformer quick-mounting is put the power of 21 speed change output shaft 75 and is passed to trailing wheel 2 via the case 29a of box of tricks 29, travel output shaft 34 and transmission shaft 38.
In addition, as shown in Figure 4, in the interior wall portion of gearbox body 17A and travel and have a plurality of friction linings 39 between the output shaft 34, discoid control member 40 outer being embedded on the output shaft 34 that travels, and can rotate freely with respect to the output shaft 34 that travels, be provided with the operating axis 42 that operating operation member 40 slides.
And, the rotation support shaft 133 of operating pedal 132 is connected via not shown link mechanism interlocking with described operating axis 42, when depressing operating operation pedal 132, master clutch 72 is operating as released state, and operating operation axle 42 makes its rotation, and operating operation member 40 makes its slip, thereby control member 40 is pushed friction lining 39, output shaft 34 brakings of travelling.When output shaft 34 glancing impacts that travel, make front-wheel 1 braking by box of tricks 29 and transmission shaft 28, make trailing wheel 2 brakings by travel output shaft 34 and transmission shaft 38.
The following describes drive mechanism to 5 transmissions of seedling growing device.
As shown in Figure 4, the transmission gear 43 of upstream side cylindraceous is via free-wheel clutch 44 outer being embedded on the transmission shaft 22 of speed change upstream side, by free-wheel clutch 44, the onward impulse of speed change output shaft 75 is passed to the transmission gear 43 of upstream side, retreats the transmission gear 43 of transmission of power to upstream side.
The transmission gear 45 in downstream and 6 speed change upstream side transmission gears 46 are interconnecting in mode that can the one rotation, the transmission gear 46 that the driven gear 45 in downstream and 6 speed changes are used is being embedded in outward with respect to transmission shaft 26 free rotation mode in downstream on the transmission shaft 26 in downstream, and the transmission gear 43 of upstream side and the driven gear in downstream 45 form the state that is engaged and linked.
And, as shown in Figure 5, with the selection power take-off shaft 47 of transmission shaft 26 configured in parallel in downstream on outside be embedded with 6 speed change downstream transmission gears 48, and 6 speed change downstream transmission gears 48 can be with respect to selecting power take-off shaft 47 to rotate freely, 6 speed change upstream side transmission gears 46 and speed change downstream transmission gear 48 mesh respectively, and have control lever 49, this control lever 49 can freely select in 6 speed change downstream transmission gears 48 one with select power take-off shaft 47 to be connected and remove connection between them.
Constitute driving transmission 50 between strain by 6 speed change upstream side transmission gears 46, speed change downstream transmission gear 48 and control lever 49 etc., select in 6 speed change downstream transmission gears 48 one to be connected by control lever 49 with selecting power take-off shaft 47, thus with speed change output shaft 75 to advance with power speed changing be that 6 shelves are passed to selection power take-off shaft 47.
Top at gearbox body 17A rear portion has output shaft 51, and this output shaft 51 is outstanding backward, can rotate freely the extraterrestrial finishing bevel gear cuter 52 and finishing bevel gear cuter 53 engagements that are fixed on the transmission shaft 47 that is embedded on the output shaft 51 with respect to output shaft 51.Speed change member 54 is embedded in outward on the output shaft 51 by spline structure and can rotates with output shaft 51 one, and speed change member 54 can be free to slide, have to speed change member 54 towards with the spring 55 of the finishing bevel gear cuter 52 engagement one side application of force, also have the control lever 56 of operation speed change member 54 away from finishing bevel gear cuter 52, thus constitute the power of speed change output shaft 75 freely can be driven to output shaft 51 and cut off this transmission plant power-transfer clutch 57.As shown in Figure 1, between the input shaft (not shown) of output shaft 51 and seedling growing device 5, be connected transmission shaft 58.
Thereby, the power of transmission shaft 26 via driving transmission between strain 50, finishing bevel gear cuter 52,53, plant power-transfer clutch 57, output shaft 51 and transmission shaft 58 and be passed to seedling growing device 5.
The following describes the drive mechanism of oil pressure pump 59.
As shown in Figure 3 and Figure 4, on gearbox body 17A, have the driven gear 138 that can rotate freely with relay axis 76 one with counter-rotating, on axle drive shaft 71, have and this driven gear 138 ingear driven wheels 139.In addition, the pump with the state that is the cross side that being positioned at reverses uses relay axis 76 making counter-rotating be connected with gear mechanism 141 via speedup with output shaft 140 with relay axis 76 and pump with output shaft 140.
And, on gearbox body 17A, between the input shaft 59a of pump, dispose pump axle drive shaft 60 with output shaft 140 and oil pressure pump 59, pump is connected by spline structure via transom cylindraceous 61 with output shaft 140 and pump axle drive shaft 60, and the input shaft 59a of oil pressure pump 59 is connected via transom 62 cylindraceous with pump axle drive shaft 60.
Like this, the power of driving engine 19 is passed to pump axle drive shaft 60 with gear mechanism 141, pump with output shaft 140 with relay axis 76, speedup via axle drive shaft 71, counter-rotating, at driving engine 19 on period, drives oil pressure pump 59 always.
As shown in Figure 8, observe from the side of gearbox body 17A, axle drive shaft 71, speed change output shaft 75, counter-rotating are configured in respectively in the gearbox body 17 with following state with relay axis 76, promptly, axle drive shaft 71 is than speed change output shaft 75 lower side of side more on the front, axle drive shaft 71 and speed change output shaft 75 make rotation axis arrange in the horizontal direction towards body transverse width direction, and counter-rotating is positioned at the top of axle drive shaft 71 with relay axis 76.
(other embodiments)
(1) in the above-described embodiment, show the state that two variable gears 86,87 k of the portion that is stuck separately forms the end of the same side on the axis direction that is positioned at speed change output shaft 75, but can adopt following structure to replace this structure, that is, two variable gear 86,87 k of the portion that is stuck separately are positioned at the end of the mutual opposition side on the axis direction of speed change output shaft 75.
In addition, in the above-described embodiment, formation makes the k of the portion that is stuck of each variable speed operation member 92,93 engagings be positioned at the state of the end of the side on the axis direction of speed change output shaft 75 of variable gear 86,87, but can adopt following structure to replace such mechanism, that is, form the state that the k of portion is positioned at the centre of variable gear 86,87 that is stuck.
(2) in the above-described embodiment, show by axis direction connecting pin 85 embeddings are installed in a pair of upstream side gear 77, the 78 gear side wall portion each other along axle drive shaft 71, thereby a pair of upstream side gear 77,78 that is connected is so that the rotation of their one, but also can be as inferior structure, that is, by the chimeric a pair of upstream side gear 77,78 that is connected of spline, so that the rotation of their one, perhaps, on gear side wall portion each other, form engaged claw.Perhaps, in the above-described embodiment, show a pair of upstream side gear 77,78 via the needle bearing 149 outer structures that are embedded on the axle drive shaft 71, but also can not use needle bearing 149, and with a pair of upstream side gear 77,78 direct outer being embedded on the axle drive shaft 71.
(3) in the above-described embodiment, show the structure that constitutes master clutch 72 by the multi-disc friction type power-transfer clutch, but master clutch 72 can use the power-transfer clutch of various structures such as single plate friction clutch, engagement type pawl power-transfer clutch.
(4) in the above-described embodiment, show and make axle drive shaft 71, speed change output shaft 75, counter-rotating makes axle drive shaft 71 with relay axis 76 rotation axis separately towards body transverse width direction, speed change output shaft 75, counter-rotating is supported with the state of arranging in the horizontal direction with relay axis 76, and axle drive shaft 71, speed change output shaft 75, counter-rotating can rotate freely with relay axis 76, but can adopt following structure to replace this structure, promptly, make axle drive shaft 71, speed change output shaft 75, state that counter-rotating is arranged towards the body front and back with separately rotation axis with relay axis 76 is supported, and axle drive shaft 71, speed change output shaft 75, counter-rotating can rotate freely with relay axis 76.
(5) in the above-described embodiment, show oil cylinder 4 as the oil pressure actuator, but can use various oil pressure actuators such as hydraulic type steering hardware or hydraulic motor to replace oil cylinder 4, perhaps, on the basis of using oil cylinder 4, re-use various oil pressure actuators such as hydraulic type steering hardware or hydraulic motor.
(6) in the above-described embodiment, show rice transplanter as working rig, but the invention is not restricted to rice transplanter, the present invention also is applicable to direct sower and other working rigs.
The present invention for example is applicable to that rice transplanter, direct sower etc. have the working rig of driving engine, gear type transmission system, oil pressure pump etc.
Claims (6)
1. the drive mechanism of a working rig will be passed to mobile devices via master clutch and gear type transmission system from the power of driving engine, and, have by from the power driven of driving engine and, it is characterized in that to the oil pressure pump of oil pressure actuator supply pressure oil,
Make by the power driven of described driving engine and the pump axle drive shaft of drive shaft rotating and described oil pressure pump is connected,
A plurality of upstream side gears of the transmission upstream side in the described transmission system respectively with arrange along the axis direction of described axle drive shaft and each upstream side gear is supported on the described axle drive shaft and the state that can rotate freely with respect to described axle drive shaft outside embedding be installed on the described axle drive shaft, and, adjacent upstream side gear is connected to each other and rotates with one, and, the outer embedding of a plurality of variable gears in the transmission downstream of described transmission system is installed on the driven shaft, a plurality of variable gears in described transmission downstream can rotate freely with the driven shaft one, and the operation by the variable speed operation member can be free to slide on axis direction
The outer embedding of described master clutch is installed on the described axle drive shaft, this master clutch is operated and can and cuts off at drive state and freely switches between the dissengaged positions of transmission of power, and described drive state is meant the transmission of power of the described axle drive shaft state that is positioned at the distolateral upstream side gear of axis direction one in a plurality of upstream side gears of described axis direction arrangement extremely.
2. the drive mechanism of working rig as claimed in claim 1 is characterized in that,
Described master clutch is made of the multi-disc friction type power-transfer clutch.
3. the drive mechanism of working rig as claimed in claim 1 or 2 is characterized in that,
Have the portion that is stuck that engages with described variable speed operation member, the described portion of being stuck is the state of the end of the side on the axis direction that is positioned at the described driven shaft on the described variable gear.
4. the drive mechanism of working rig as claimed in claim 3 is characterized in that,
Described a plurality of variable gear described portion of being stuck separately forms the state of the end of the same side on the axis direction that is positioned at described driven shaft.
5. as the drive mechanism of each described working rig in the claim 1～4, it is characterized in that,
Adjacent a pair of upstream side gear in the described transmission system, make under the approximating state of wheel tooth portion, connecting pin embedded along the axis direction of described axle drive shaft be installed in each other, the adjacent a pair of upstream side gear in the described transmission system is connected rotates thus with one at the radial outer end portion of wheel tooth portion and the gear side wall portion between the radial inner end.
6. as the drive mechanism of each described working rig in the claim 1～5, it is characterized in that,
Described axle drive shaft and described pump axle drive shaft are connected via relay axis, and, embedding is equipped with the power reverse gear that speed change is used that retreats of described transmission system outside on this relay axis, and this power reverse can rotate freely with respect to described relay axis with gear
Described axle drive shaft, described driven shaft, described relay axis are configured in the transmission gearbox respectively, make described axle drive shaft more lean on lower side than described driven shaft, described axle drive shaft and described driven shaft are arranged in the horizontal direction, and described relay axis is positioned at the top of described axle drive shaft.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-124979 | 2010-05-31 | ||
| JP2010124979A JP5341822B2 (en) | 2010-05-31 | 2010-05-31 | Work machine transmission structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102259589A true CN102259589A (en) | 2011-11-30 |
| CN102259589B CN102259589B (en) | 2016-02-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010295831.8A Expired - Fee Related CN102259589B (en) | 2010-05-31 | 2010-09-21 | The drive mechanism of working rig |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5341822B2 (en) |
| CN (1) | CN102259589B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111016604A (en) * | 2019-12-04 | 2020-04-17 | 西南大学 | Ultra-large torque double-helix double-surpassing integrated intelligent self-adaptive electric drive precursor system |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013203359A (en) | 2012-03-29 | 2013-10-07 | Kubota Corp | Rice field working machine |
| CN103644288B (en) * | 2013-11-18 | 2016-01-06 | 无锡京华重工装备制造有限公司 | A kind of gearbox designs |
| US9599974B2 (en) | 2013-11-26 | 2017-03-21 | Rockwell Automation Technologies, Inc. | System for dynamic connection of distributed advanced process control components with control level applications |
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| JPH10338041A (en) * | 1997-06-09 | 1998-12-22 | Kubota Corp | Traveling transmission gear for working vehicle |
| JP4770110B2 (en) * | 2003-07-25 | 2011-09-14 | いすゞ自動車株式会社 | Scissor gear |
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| JP3959904B2 (en) * | 1999-10-06 | 2007-08-15 | 井関農機株式会社 | Mounting structure of hydrostatic continuously variable transmission for work vehicle |
| US20020033093A1 (en) * | 2000-09-18 | 2002-03-21 | Shusuke Nemoto | Transmission for vehicle |
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| CN111016604B (en) * | 2019-12-04 | 2022-03-15 | 西南大学 | Ultra-large torque double-helix double-surpassing integrated intelligent self-adaptive electric drive precursor system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102259589B (en) | 2016-02-03 |
| JP5341822B2 (en) | 2013-11-13 |
| JP2011251572A (en) | 2011-12-15 |
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