CN100345703C - Sitting type operation machine - Google Patents
Sitting type operation machine Download PDFInfo
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- CN100345703C CN100345703C CNB2005100627146A CN200510062714A CN100345703C CN 100345703 C CN100345703 C CN 100345703C CN B2005100627146 A CNB2005100627146 A CN B2005100627146A CN 200510062714 A CN200510062714 A CN 200510062714A CN 100345703 C CN100345703 C CN 100345703C
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Abstract
To provide a riding type working vehicle capable of effectively preventing generation of inconvenience caused by muddy water and suitable for work at a field with a large amount of muddy water.An engine 3 and a transmission case 4 distributed/arranged at front and rear sides of a riding operation part 2 are arranged such that regarding the engine 3, a height position of an output shaft 13 and regarding the transmission case 4, a height position of an input shaft 16 become higher than a height position of a riding step 10 at the riding operation part 2 respectively. Further, a transmission system 14 from the output shaft 13 to the input shaft 16 is displaced/arranged at one lateral side on a floor surface 84 at the riding step 10 so as to by-pass a pedal operation part 86 formed on the riding step 10.(C)2006,JPO&NCIPI.
Description
Technical field
The present invention relates to be suitable for the sitting type operation machine that in more field of muddy water etc., carries out operation.
Background technology
For sitting type operation machine, generally will be, be configured in the below of taking gangboard to the driving system the input shaft of the change speed gear box that is provided in the rear of taking Drive Section from the output shaft of the driving engine that is provided in the place ahead of taking Drive Section.In order to make the configuration of such driving system be easy to carry out, considering has following proposal: driving engine and change speed gear box are configured to, and the output shaft of these driving engines and change speed gear box, the height and position of input shaft are than the height and position of taking in the Drive Section of taking gangboard low (for example opening flat 7-277019 communique with reference to the spy).
According to said structure, be accompanied by travelling of body and the muddy water that splashes easily on the input shaft and the driving system between its peripheral position and this two parts attached to the output shaft of driving engine and its peripheral position, change speed gear box.Therefore, if in the more field of muddy water, use the sitting type operation machine that constitutes like this, then can be etc. locate to adhere to more muddy water at above-mentioned position.So, can enter between the output shaft and its support of driving engine attached to the muddy water on these positions, between the output shaft of change speed gear box and its support or among the gap between each parts in the driving system, make harmful effects such as being configured in in-to-in oil sealing and bearing generation loss thereby cause easily.
Summary of the invention
The object of the present invention is to provide a kind of like this sitting type operation machine, the generation that it can prevent the problem that causes because of muddy water effectively is suitable for carrying out operation in more field of muddy water etc.
As the mechanism that solves above-mentioned problem, riding-type working truck of the present invention has: vehicle frame is bearing on a plurality of front-wheels and a plurality of trailing wheel; Driving engine being installed on the aforementioned vehicle frame on the position of vehicle front side, has output shaft; Change speed gear box is installed on the aforementioned vehicle frame on the position after leaning on than aforementioned driving engine, has input shaft; Driving system will arrive aforementioned input shaft from the transmission of power of aforementioned output shaft; The height of the output shaft of aforementioned driving engine and the input shaft of aforementioned change speed gear box is configured to the height and position height of taking gangboard than the Drive Section of aforementioned vehicle respectively, aforementioned driving system is bent downwardly near aforementioned front portion of taking gangboard, and, be configured in and be disposed on pedal operation portion in the aforementioned zone of the taking gangboard position arranged side by side along fore-and-aft direction in the transversely biasing of the aforementioned plate face of taking gangboard and under the state of plate face.
According to this structure, be accompanied by travelling of body and the muddy water that splashes is difficult on the input shaft and the driving system between peripheral position and these parts thereof attached to the output shaft of driving engine and peripheral position thereof, change speed gear box.Therefore, even in the more farm of muddy water etc., use, also can suppress the situation that muddy water is attached on these positions effectively and take place.Like this, can prevent because of muddy water enters between the output shaft and its support of driving engine, between the input shaft of change speed gear box and its support or in the gap between each parts in the driving system, and in-to-in oil sealing and bearing etc. are caused harmful effects such as loss.
In preferred implementation of the present invention, aforementioned output shaft and aforementioned input shaft one side to about aforementioned vehicle is extended, aforementioned driving system constitutes the strap drive formula system that has the driving band that extends between aforementioned output shaft and aforementioned input shaft end separately, and the aforementioned extension of taking gangboard more extends to the outside of car body than aforementioned driving system.
According to this structure, the bevel gear higher with needing price and for having the shaft drive formula driving system of higher accuracy requirement to compare with respect to the position of the input shaft of the output shaft of driving engine and change speed gear box is involutory etc. can be realized the reduction of cost and the raising of assembleability.
And, compare with the situation that the transmission downstream side part that is positioned at the tape drive mechanism on the plate face of taking gangboard is positioned on the higher position of plate face predetermined distance, can improve the open sense that the operator who takes Drive Section is given.
Therefore, not only can cutting down cost and improve assembleability, also can improve the traveling comfort of taking Drive Section.
In preferred implementation of the present invention, the aforementioned output shaft zone of aforementioned driving system is positioned at than on the high horizontal surface of aforementioned front-wheel.Thus, when carrying out the steering operation of front-wheel, can not be connected on the aforementioned front-wheel, so can increase the steering angle of front-wheel.
In preferred implementation of the present invention, aforementioned change speed gear box forms, and the efferent that has the output shaft of the usefulness of travelling is positioned on the lower position of this change speed gear box.
According to this structure, can make the ground of change speed gear box highly be maximum state, and do not have the part except that efferent in the change speed gear box be positioned at than this efferent more by under locational situation, thus, can make the muddy water that is accompanied by travelling of body and splashes more difficult attached to change speed gear box with its input shaft is carried out on the driving system of transmission, thereby can more effectively suppress muddy water adhering to these positions, can prevent from more reliably to enter between the input shaft and its support of change speed gear box because of muddy water, perhaps in the gap between each parts in the driving system, and oil sealing and the bearing etc. that is installed in therebetween caused harmful effects such as loss.
Therefore, can prevent to carry out attached to change speed gear box with to its input shaft the generation of the problem that causes on the driving system of transmission reliably because of muddy water.
In preferred implementation of the present invention, between the output shaft of aforementioned change speed gear box and the aforementioned usefulness of travelling, be disposed with a plurality of oil sealings, the oil sealing that is installed on the outermost locations of aforementioned change speed gear box can load and unload from the outside of change speed gear box.
According to this structure, in change speed gear box, the position of considering the output shaft that has the usefulness of travelling is difficult to prevent this point of adhering to of muddy water, be provided with a plurality of oil sealings and arrange, thus, even muddy water has entered travelling with between output shaft and its support in the change speed gear box, also may be limited to the degree of the oil sealing generation loss on the outermost locations that is positioned at change speed gear box, can prevent generation losses such as bearing.
Again, even loss has taken place in the oil sealing that causes being positioned at owing to muddy water on the outermost locations of change speed gear box, because this oil sealing can be changed simply from the outside of change speed gear box, and do not need to extract out the interior required time of oil sealing of change speed gear box, thereby can promptly handle the oil sealed loss, can easily prevent the generation of the problem that causes because of adhering to of muddy water.
Therefore, can prevent effectively because of muddy water attached to the travel generation of the problem that causes on the position with output shaft of having in the change speed gear box.
In preferred implementation of the present invention, the transmission system of the usefulness of travelling and trailing wheel are equipped with in aforementioned change speed gear box with differential attachment, the variable speed operation axle of aforementioned transmission system and aforementioned trailing wheel are with the operating axis that can stop differential lockable mechanism of differential attachment, to be positioned at the top that is provided to aforementioned change speed gear box than the aforementioned higher locational mode of height and position of taking gangboard.
According to this structure, the muddy water that is accompanied by travelling of body and splashes is difficult to attached to the variable speed operation axle that is equipped with the transmission system in change speed gear box and the operating axis of lockable mechanism, and with operating system that these link to each other on, can suppress muddy water effectively is attached on these parts, can prevent because of muddy water enter change speed gear box in the variable speed operation axle and operating axis and these support between, perhaps between each parts of these operating system, and the operating system that is installed in the oil sealing between each operating axis and its support and links to each other with each operating axis etc. caused harmful effect such as loss.
Therefore, can prevent effectively because of the generation of muddy water attached to the problem that causes in the gear operation system of change speed gear box and the differential operation system.
As the mechanism that is used to solve above-mentioned problem, in the present invention, power take-off shaft is equipped with in aforementioned change speed gear box, and the accessory drive system that carries out transmission of power to aforementioned power take-off shaft from aforementioned input shaft is provided to the inner and upper of aforementioned change speed gear box.
According to this structure, be equipped in change speed gear box even will be used for the accessory drive system and the power take-off shaft of the power of usefulness such as output operation, also can avoid the problem of the ground height step-down of the change speed gear box that causes thus, can keep the muddy water of following travelling of body and splashing is difficult to attached to the state on change speed gear box and the power take-off shaft etc., can prevent muddy water effectively to the adhering to of these positions, thereby can prevent to cause harmful effects such as loss because of oil sealing and bearing etc. that muddy water enters between power take-off shaft and its support being clipped on therebetween.
Therefore, not only can be from the power of usefulness such as change speed gear box output operation, can also prevent effectively because of the generation of muddy water attached to the problem that causes on the power take-off shaft of change speed gear box and its peripheral position.
In preferred implementation of the present invention, aforementioned accessory drive system constitutes the shaft drive formula system with the attachment driving shaft that is between aforementioned input shaft and the aforementioned power take-off shaft, the posture of aforementioned attachment driving shaft is set at, and intersects with respect to the posture of each transmission shaft of the driving transmission agent between the output shaft that is in aforementioned input shaft and the aforementioned usefulness of travelling.
According to this structure, can effectively utilize between gear on each transmission shaft in the change speed gear box, that be installed in driving transmission agent and the shift fork or each transmission shaft of driving transmission agent and the gap between each operating axis, be equipped with attachment driving shaft in the mode of passing between these parts.
Therefore, can be although equipped from the accessory drive system of the power of usefulness such as change speed gear box output operation, the also maximization of the change speed gear box that can suppress to cause thus, and, although change speed gear box has been provided on the higher position of adhering to that can suppress muddy water, also can avoid uprising the problem of the stability reduction that causes because of the body center of gravity.
In preferred implementation of the present invention, on aforementioned input shaft, be equipped with the assisted clutch that can carry out with respect to the transmission switching of aforementioned power take-off shaft, the operating axis of aforementioned assisted clutch is configured in the top of aforementioned change speed gear box to be positioned at the higher locational mode of height and position of taking gangboard than aforementioned.
According to this structure, can carry out takeoff output from power take-off shaft as required.And, the muddy water that is accompanied by travelling of body and splashes be difficult to attached to the operating axis that is equipped with the assisted clutch in change speed gear box, with operating system that these link to each other on, can prevent effectively that muddy water is attached on these positions, so, can prevent to enter between the operating axis of assisted clutch of change speed gear box and its support or between each parts of its operating system the operating axis that is clipped on assisted clutch and the oil sealing between its support and the operating system of assisted clutch are caused harmful effects such as loss because of muddy water.
Therefore, can prevent effectively because of the generation of muddy water attached to the problem that causes on the operating axis of the assisted clutch in the change speed gear box and its operating system.
In preferred implementation of the present invention, by power operated Hydraulic Pump from aforementioned driving engine, at the rear of aforementioned driving engine, be positioned at than aforementioned driving system more forward state the central portion of taking gangboard and than aforementioned panels face more by the locational state configuration of top.
According to this structure, on the drive system that the muddy water that is accompanied by travelling of body and splashes is difficult to drive attached to Hydraulic Pump with to this Hydraulic Pump, can prevent effectively that muddy water is attached on these positions, therefore, can prevent because of muddy water enters between the axle drive shaft and its support of Hydraulic Pump, between each parts of its drive system etc., and axle drive shaft and the oil sealing between its support and the drive system of Hydraulic Pump etc. that are clipped on Hydraulic Pump are caused harmful effects such as loss.
Therefore, can prevent effectively because of the generation of muddy water attached to the problem that causes on Hydraulic Pump and its drive system.
In preferred implementation of the present invention, the central authorities of operating oil tank on the left and right directions that is configured in body below the aforementioned driving engine.
According to this structure, by with the following side space of engine configurations at the driving engine that can prevent to obtain on the higher position of adhering to of muddy water, effectively utilize to not being vulnerable to the configuration space of the dysgenic operating oil tank that muddy water adheres to, thus, although engine configurations on the higher position, also can be avoided uprising the stability that is caused by the body center of gravity and is reduced.
Therefore, can prevent effectively, and can guarantee the stability of body because of the generation of muddy water attached to the problem that causes on the output shaft of driving engine and its peripheral position etc.
In preferred implementation of the present invention, the front-end configuration of aforementioned input shaft or change speed gear box be located on the aforementioned working truck attend a banquet below.Thus, the front end of input shaft and change speed gear box is positioned on the position of the pin that can not interfere with the operator, can improve wider space.
Description of drawings
Fig. 1 is the integral left lateral plan of sitting type operation machine.
Fig. 2 is the integral right lateral plan of sitting type operation machine.
Fig. 3 is the whole birds-eye view of sitting type operation machine.
Fig. 4 is the overall perspective view when observing sitting type operation machine from the right front.
Fig. 5 is the overall perspective view when observing sitting type operation machine from the left back.
Fig. 6 is the summary integral left lateral plan of sitting type operation machine.
Fig. 7 is the block diagram of main portion of the configuration of expression driving engine and change speed gear box etc.
Fig. 8 is the vertical profile back view of change speed gear box.
Fig. 9 is the vertical profile back view of the main portion of change speed gear box.
Figure 10 is the vertical profile lateral plan of change speed gear box.
Figure 11 is the cross-sectional birds-eye view of expansion of the main portion of change speed gear box.
Figure 12 is the birds-eye view of main portion of shape of the guide groove of expression main shift lever.
Figure 13 is the vertical profile back view of expression with respect to the main portion of the seal construction of the support of the travelling usefulness output shaft in the change speed gear box.
Figure 14 is the vertical profile back view of main portion of the supporting construction of the accessory drive system of expression in the change speed gear box.
Figure 15 is the block diagram of the main portion of expression configuration of operating oil tank and supporting construction.
Figure 16 is the block diagram of the main portion of the configuration of expression lift cylinder and lift arm and supporting construction.
The specific embodiment
Integral left lateral plan as the trac. of an example of sitting type operation machine has been shown among Fig. 1, its integral right lateral plan has been shown among Fig. 2, its whole birds-eye view has been shown among Fig. 3, overall perspective view when observing from the right front has been shown among Fig. 4, overall perspective view when observing from the left back has been shown among Fig. 5, its summary integral left lateral plan has been shown among Fig. 6.This trac. comprises: the body frame 1 that is formed the frame shape by steel of band shape etc., what be formed at this body frame 1 rear portion side takes Drive Section 2, be equipped on the driving engine 3 of the front portion of body frame 1, link and have the change speed gear box 4 of framework effect with the rearward end of body frame 1, be provided to the front-wheel 5 about the front portion of body frame 1, be provided to change speed gear box 4 about trailing wheel 6, be provided in the fluid pressure type lift cylinder 7 of the top of change speed gear box 4, pair of right and left lift arm 8 that action by this lift cylinder 7 swings up and down etc.At the rear portion of trac., can link apparatus for work such as not shown disc plough, rotary cultivator attachment or trailer etc. via connecting rod mechanism 9 grades.
Taking Drive Section 2 attends a banquet by the bearing circle 11 of taking gangboard 10, left and right sides front-wheel being turned to of the rear portion side that is configured in body frame 1 and across the driving that predetermined distance is provided to the rear of this bearing circle 11 and 12 etc. forms.
As Fig. 1～shown in Figure 9, driving engine 3 is horizontal diesel engines, is configured to the posture that its output shaft 13 stretches out to the left side of body, is positioned at than taking the high locational mode of gangboard 10 with its integral body, is equipped on the front portion of body frame 1.Its power transmits to the input shaft 16 (with reference to Fig. 6) of change speed gear box 4 via tape drive mechanism (example of driving system) 14 and many templates of dry type master clutch 15.
As Fig. 1～Fig. 5 and Fig. 8～shown in Figure 11, in change speed gear box 4, be built-in with following parts as driving transmission agent 27: the main transformer quick-mounting of gear type puts 18, based on being provided in the attend a banquet operation of main shift lever 17 in 12 left side of the driving of taking in the Drive Section 2, the powershift that is input to input shaft 16 is become to retreat the fast state that the inverted status of usefulness, the lower-speed state that the rotary tillage operation is used, the middling speed state that the disc plough operation is used, dilatory operation are used; The secondary speed-changing device 20 of gear type based on the operation of the secondary shifter bar 19 at the rear that is provided in main shift lever 17, carries out the height Two Stages to the power of being put by the main transformer quick-mounting after 18 speed changes; Trailing wheel differential attachment 22, under the state of the differential rotation that allows left and right sides shaft 21, will be by shaft 21 transmission to the left and right of the power after these secondary speed-changing device 20 speed changes; Lockable mechanism 24 is based on being provided to the attend a banquet operation of trampling of 12 bottom-right differential locking pedal 23 of the rotation of taking in the Drive Section 2, from allowing to switch to this differential state of prevention by trailing wheel with the differential state of the left and right sides shaft 21 of differential attachment 22 gained; Transmission gear 26 transmits power from the back axle 25 of left and right sides shaft 21 to cooresponding output shaft as the usefulness of travelling.
As Fig. 7～shown in Figure 11, change speed gear box 4 is made of the 1st～the 4th housing 28～31, be one to be divided into four structure along what the left and right directions of body was cut apart, the 1st housing 28 and the 2nd housing 29 are supporting and are being equipped with in the input shaft 16 of its leading section, make it be in the state that stretches out to the left side of body.And, between the 1st housing 28 and the 2nd housing 29, accommodate that the main transformer quick-mounting puts 18, secondary speed-changing device 20 and trailing wheel be with differential attachment 22.Between the 1st housing 28 and the 3rd housing 30, accommodate the shaft 21 and the transmission gear 26 in lockable mechanism 24, left side.The 1st housing 28 and the 3rd housing 30 are supporting the back axle 25 in left side, make it be in the state that stretches out to the left side of body.Between the 2nd housing 29 and the 4th housing 31, accommodate the shaft 21 and the transmission gear 26 on right side.The back axle 25 that the 2nd housing 29 and the 4th housing 31 constitute the right side supports, make it be in the state that stretches out to the right side of body, and the efferent 32 that has left and right sides back axle 25 and transmission gear 26 is positioned at the aftermost by on the upper/lower positions of change speed gear box 4.Change speed gear box 4 integral body form the high tilted shape in front side, and are more offside in the top by the leading section side that has input shaft 16, and the first half that has input shaft 16 grades is positioned at than taking on the high position of gangboard 10.
As Fig. 8～shown in Figure 11, the top at change speed gear box 4 is equipped with: the 1st operating axis 35, and between low-speed position F1, F2 that going-back position R1, R2 and rotary tillage operation are used, the main transformer quick-mounting is put 18 the 1st variable gear 33 via the 1st shift fork 34 and carry out slide; The 2nd operating axis 38 is put 18 2nd variable gear 36 to the main transformer quick-mounting via the 2nd shift fork 37 and is carried out slide between high speed position F5, F6 that middling speed position F3, F4 that the disc plough operation is used and dilatory operation are used; The 3rd operating axis 41, the variable gear 39 to secondary speed-changing device 20 carries out slide between low-speed position L and high speed position H via the 3rd shift fork 40; The 4th operating axis 44, the conversion pawl 42 to lockable mechanism 24 carries out slide between lock position and releasing position via the 4th shift fork 43.
In addition, as Fig. 3 and shown in Figure 12, the 1st operating axis 35 and the 2nd operating axis the 38, the 3rd operating axis the 41, the 4th operating axis 44 link via cooresponding not shown link gear and main shift lever 17, secondary shifter bar 19, differential locking pedal 23 respectively.By shifter bar 17 being operated high speed position F5, the F6 that going-back position R1, R2, low-speed position F1, F2 that the rotary tillage operation is used, middling speed position F3, F4 that the disc plough operation is used or dilatory operation are used, can switch to the fast state that fallback state, the lower-speed state that the rotary tillage operation is used, the middling speed state that the disc plough operation is used, dilatory operation are used along the guide groove 45 that forms H word shape.Under any state in these states, can come this each state is further carried out the switching of height two-stage by low-speed position L or the high speed position H that secondary shifter bar 19 is operated front and back.
Speed setting under the lower-speed state that the rotary tillage operation is used is about 1.1km/h, speed setting under the fast state that the rotary tillage operation is used is about 1.7km/h, speed setting under the lower-speed state of disc plough operation (operation of plowing) usefulness is about 3.8km/h, speed setting under the fast state that the disc plough operation is used is about 5.9km/h, speed setting under the lower-speed state that dilatory operation is used is about 13.7km/h, and the speed setting under the fast state that dilatory operation is used is about 21.6km/h.
As Fig. 2～Fig. 4, Fig. 8 and shown in Figure 9, between the 1st housing 28 and the 3rd housing 30 and between the 2nd housing 29 and the 4th housing 31, accommodate the drg 47 of wet multi-plate type respectively, described drg 47 will be given cooresponding shaft 21 with the corresponding braking force of its operational ton based on the operation of trampling of the corresponding brake pedal 46 in the brake pedal 46 of the pair of right and left that is provided in the right front portion of taking Drive Section 2.
As Fig. 8 and shown in Figure 9, in the 3rd housing 30 and the 4th housing 31, equipping the operating axis 48 that cooresponding drg 47 is carried out brake operating, between the support of these operating axis 48 and the 3rd housing 30 that it is supported and the 4th housing 31, can dispose oil sealing 49 from the mode that load and unload the outside of change speed gear box 4.
Again, as shown in figure 11, between the support of aforementioned the 1st～the 4th operating axis 35,38,41,44 and the 1st housing 28 that it is supported, also can dispose oil sealing 49 from the mode that load and unload the outside of change speed gear box 4.
As Fig. 8 and shown in Figure 13, between the support of the back axle 25 in left side and the 3rd housing 30 that its outside is supported and between the back axle 25 on right side and the support to the 4th housing 31 that supports outside it, be disposed with 2 oil sealings 50,51 respectively, the oil sealing 51 that is provided in the body outside among these oil sealings 50,51 can load and unload from the outside of change speed gear box 4.
In addition, the external side end of each support in the 3rd housing 30 and the 4th housing 31 is separately installed with cover 52, adheres to or invades between left and right sides back axle 25 and each support in order to prevent muddy water etc.
As Fig. 7～shown in Figure 10, the 1st housing 28 forms deeplyer, with have with the main transformer quick-mounting put 18, secondary speed-changing device 20 and trailing wheel be with the roughly whole big volume of taking in wherein of differential attachment 22, and, in its back-end in the portion, have takeoff output portion 54, described takeoff output portion releasably is equipped with takeoff output assembly 53.
As shown in figure 10, takeoff output assembly 53 is via the 1st bearing 56 and a pair of oil sealing 57,58, the roughly barrel-contoured supporting mass 55 that bolt is attached on the 1st housing 28 is bearing in and can carries out on the power take-off shaft 59 of transmission apparatus for work etc., and, on the end that is positioned at change speed gear box 4 sides of this power take-off shaft 59, bevel gear 60 and the 2nd bearing 61 are installed.
In addition, be provided to the oil sealing 58 in the body outside among a pair of oil sealing 57,58, constitute and to load and unload from the outside of change speed gear box 4.
As Fig. 8～Figure 11 and shown in Figure 14, the 2nd housing 29 forms the lid shape of following size more shallowly: can put 18 to input shaft 16 and the main transformer quick-mounting that disposes in parallel, each right part of each transmission shaft 62～65 of secondary speed-changing device 20 supports.Front and back on the top of the 2nd housing 29, have the supporting mass 67 that is releasably supporting accessory drive system 66, described accessory drive system 66 can carry out from input shaft 16 to power take-off shaft the transmission 59, these supporting masses 67 constitute the structure that is divided into two that is formed by the 1st support 68 and the 2nd support 69, described the 1st support 68 bolts are attached on the 2nd housing 29, and described the 2nd support 69 is attached on the 2nd housing 29 with the 1st support 68 bolts.
Between input shaft 16 and bevel gear 74, dispose the assisted clutch 76 that 59 the drive state from input shaft 16 to power take-off shaft is switched.On the top of the 1st housing 28 and the 2nd housing 29, the 5th operating axis 79 is equipped with, described the 5th operating axis 79 via the 5th shift fork 78 between transmission engage position and transmission open position the converting member 77 to this assisted clutch 76 carry out slide.The 5th operating axis 79 via not shown link gear be provided in attend a banquet assisted clutch control lever 80 (with reference to Fig. 1, Fig. 2 and Fig. 4) interlock on 12 right side of the driving of taking in the Drive Section 2.
Again, although not shown, the 5th operating axis 79, and, between the support of the 1st housing 28 that it is supported and the 2nd housing 29 also can clamp oil sealing 49 from the mode that load and unload the outside of change speed gear box 4.
The assembling of change speed gear box 4 is following to be carried out: at first, in its 1st housing 28, supporting and equipment input shaft 16, main transformer quick-mounting put 18, secondary speed-changing device 20, trailing wheel be with back axle 25, takeoff output assembly 53 and the assisted clutch 76 etc. in differential attachment 22, left side, afterwards, by bolt supporting and the 2nd housing 29 that is equipped with the back axle 25, accessory drive system 66 etc. on right side are linked., lockable mechanism 24 and drg 47 be equipped in trailing wheel shaft 21 with left side in differential attachment 22 on, and transmission gear 26 be installed in the back axle 25 in left side on, afterwards, the 3rd housing 30 bolts are attached on the 1st housing 28 thereafter.Drg 47 is provided on the shaft 21 of trailing wheel with the right side in the differential attachment 22, and transmission gear 26 is installed on the back axle 25 on right side, afterwards, the 4th housing 31 is attached on the 1st housing 28 with the 2nd housing 29 bolts.Like this, can carry out the assembling of change speed gear box 4 fairly simplely.
Again, each oil sealing 49,51,58 except that inboard oil sealing 50,57 can easily be changed from the outside of change speed gear box 4, and will not decompose by change speed gear box 4.The sealing of the below by will being positioned at pasta makes to become double-layer structural, on change the outside oil sealing 51,58 o'clock, does not need to extract out the oily required time in the fuel tank 4, thereby can promptly handle the loss of oil sealing 49,51,58.
As Fig. 1～Fig. 6, Fig. 8 and shown in Figure 9, driving band 83 volumes of tape drive mechanism 14 are hung between output pulley 81 and the input belt wheel 82, described output pulley 81 is installed in the stretching out on the end of output shaft 13 of driving engine 3, and described input belt wheel 82 is installed in stretching out on the end of input shaft 16 in the change speed gear box.Driving band 83 is to roll up extension by the master clutch operation of taking on the gangboard 10 with the mode of the left-external side of pedal of clutch 85, and described pedal of clutch 85 is provided in the left front portion on the plate face 84 of taking gangboard 10.Therefore, tape drive mechanism 14 is positioned at the left side of taking gangboard 10, can avoid being formed at the pedal operation portion 86 of taking on the gangboard 10, again, the downside position of transmission shield 87 with along the state support of plate face 84 on plate face 84.The pars intermedia of tape drive mechanism 14 has reclinate shape in taking the front end near zone of gangboard 10.That is, tape drive mechanism 14 near the front end of taking gangboard 10 between the output shaft 13 of driving engine 3 forward, extend upward.
As shown in Figure 6, than tape drive mechanism 14 more by the position of the central portion of taking gangboard 10, be the right side of tape drive mechanism 14, gear type pump (example of Hydraulic Pump) 89 is equipped with.This gear type pump 89 is positioned at the left back below of driving engine 3, and by transmitting the power driven of coming via the accessory drive gear 88 of strap drive formula from driving engine 3, described accessory drive gear 88 is in abutting connection with the right side that is provided in tape drive mechanism 14.The top is more leaned on than the plate face 84 of taking gangboard 10 in the position of this gear type pump 89.
According to said structure, the input shaft 16 of the output shaft 13 of driving engine 3 and peripheral position thereof, change speed gear box 4 and each operating axis 35,38,41,44,48,79 and these peripheral position, tape drive mechanism 14, accessory drive gear 88, gear type pump 89 etc. all are disposed at than on the higher position of the height and position of taking gangboard 10.Like this, even this trac. is travelled in more paddy field of muddy water etc., the muddy water that is splash by front and back wheel 5,6 along with travelling of trac. also is difficult to be attached on the input shaft 16 of the output shaft 13 of driving engine 3 and peripheral position thereof, change speed gear box 4 and each operating axis 35,38,41,44,48,79 and these peripheral position, tape drive mechanism 14, accessory drive gear 88, gear type pump 89 etc.Therefore, even in the more paddy field of muddy water etc., use, also can suppress the situation that muddy water is attached on these positions effectively takes place, thereby can prevent to enter between the output shaft 13 and its support of driving engine 3 because of muddy water, the input shaft 16 of change speed gear box 4 and each operating axis 35,38,41,44,48,79 and its support between, each belt wheel 81 of tape drive mechanism 14,82 and driving band 83 between, between each parts of tape drive mechanism 88 and gear type pump 89, and to being installed in the oil sealing 49 in these positions, 51,58 and driving band 83 etc. cause harmful effects such as loss.
Again, by taking outfit tape drive mechanism 14 on the plate face 84 of gangboard 10, can prevent from tape drive mechanism 14 is being provided to the increase of the body left and right sides width that is produced under the situation of the lateral outer side of taking gangboard 10, and can realize simplicity with respect to the supporting construction of tape drive mechanism 14.And, although tape drive mechanism 14 has been provided on the plate face 84 of taking gangboard 10, also can avoid by this tape drive mechanism 14 caused to being equipped with in the obstruction of the operation of taking each operating pedal 23,46,85 on the gangboard 10.Compare with the situation that the transmission downstream side part that is positioned at the tape drive mechanism 14 on the plate face 84 of taking gangboard 10 is positioned on the higher position of plate face 84 predetermined distances, can improve the open sense that the operator who takes Drive Section 2 is given.
As shown in figure 10, takeoff output assembly 53 effectively utilizes gap in the change speed gear box 4, that be formed between the left and right sides transmission gear 26 and is configured, again, the attachment driving shaft 70 of accessory drive system 66 be effectively utilize in the change speed gear box 4, be formed at the main transformer quick-mounting and put 18 and each transmission shaft 62～65 and the gap between each operating axis 35,38,41,44 of secondary speed-changing device 20, dispose in the mode of passing this gap.Like this, can the accessory drive system 66 of takeoff output, the maximization of the change speed gear box 4 that also can suppress to cause thus will be used from the operation of change speed gear box 4 even equipped.Therefore, although change speed gear box 4 has been configured on the higher position of adhering to that can suppress muddy water, also can avoid uprising the problem of the stability reduction that causes because of the body center of gravity.
As Fig. 1～shown in Figure 7, Fuel Tank 90 and noise silencer 91 etc. are equipped with on the top of the supercentral driving engine 3 in the left and right sides that is equipped on body,, battery 92 etc. is equipped with in its preceding bottom.Again, under driving engine 3, effectively utilize by driving engine 3 being provided in the following side space of the driving engine 3 that obtains on the higher position of adhering to that can suppress muddy water, being equipped with and be not vulnerable to the dysgenic operating oil tank 93 that caused by adhering to of muddy water.
Promptly, battery 92 that will be heavier and operating oil tank 93 be provided in the toe lateral that is positioned at body, be again simultaneously on the position of downside of driving engine 3, can be implemented in After-Body thus and link anterior-posterior balance when apparatus for work etc. is arranged, although and driving engine 3 has been provided on the higher position, also can reduce the center-of-gravity position of body, thereby can realize the raising of organism stability.
As Fig. 6 and shown in Figure 15, operating oil tank 93, between the left and right sides main car frame parts 94 in body frame 1, and, link between the frame part 95 in the front and back that connect these main car frame parts 94, fixing by left and right sides supporting member 96 supportings that bolt is attached on the left and right sides main car frame parts 94.
As Figure 6 and Figure 7, driving engine 3 and upright being located between the Steering gear 97 at its rear, effectively utilize the space that is formed between these two parts, airfilter 98 is equipped with.
As Fig. 6 and shown in Figure 16, lift cylinder 7 is to be provided in the top of change speed gear box 4 along the low posture of the upper surface rear side of change speed gear box 4, lift arm 8 with pair of right and left, the pair of right and left carriage 99 that is attached on the change speed gear box 4 by bolt supports, thus, compare with the situation that lift cylinder 7 is equipped on the change speed gear box 4 integratedly, can realize the shape of change speed gear box 4 and the simplicity of structure.
Again, about the lower edge 100 of each carriage 99 by upper surface part 101 fixed bearings of change speed gear box 4, thus, can avoid with about each carriage 99 be attached at the situation that each bolt on the change speed gear box 4 cuts off take place under the load of apparatus for work etc.
The mud cover of the Reference numeral 102 expression pair of right and left among Fig. 6 is in order to prevent that muddy water is attached to each operating axis 35,38,41,44,48,79 that is equipped on the change speed gear box 4 and reaches on each link gear that links to each other with these.
[other embodiment]
Below, enumerate other embodiment of the present invention.
(1), also can be riding type rice transplanter or riding-type sower as sitting type operation machine.
(2) as driving system 14, also can adopt the shaft drive formula system that constitutes by transmission shaft and bevel gear etc., or the chain-driving formula system that constitutes by messenger chain etc.
(3) also can carry driving engine 3 along the posture that the fore-and-aft direction of body stretches out with output shaft 13, and the posture equipment change speed gear box 4 that stretches out along the fore-and-aft direction of body with input shaft 16, between output shaft 13 and input shaft 16, with along being formed at the circuitous mode of the pedal operation portion of taking on the gangboard 10 86, with driving system 14 biasings be provided on the horizontal sidepiece on the plate face 84 of taking gangboard 10.
In addition, as driving system 14 in this case, can consider to adopt the transmission shaft that disposes abreast by with respect to output shaft 13 and input shaft 16, the 1st cross-drive axle between output shaft 13 and the transmission shaft, but the system that the 2nd cross-drive axle between transmission shaft and the input shaft 16 and transmission ground constitutes these bevel gears that link up etc., or by the transmission shaft that disposes abreast with respect to output shaft 13 and input shaft 16, carry out the belt drive mechanism of transmission and carry out the system that the belt drive mechanism etc. of transmission constitutes from transmission shaft to input shaft 16 to transmission shaft from output shaft 13.
(4), also can adopt strap drive formula system that constitutes by driving band etc. or the chain-driving formula system that constitutes by messenger chain etc. as accessory drive system 16.
Claims (13)
1. riding-type working truck, have: vehicle frame is bearing on a plurality of front-wheels and a plurality of trailing wheel; Driving engine is installed on the aforementioned vehicle frame in the position of vehicle front side, has output shaft; Change speed gear box, the position after leaning on than aforementioned driving engine is installed on the aforementioned vehicle frame, has input shaft; Driving system, to arrive aforementioned input shaft from the transmission of power of aforementioned output shaft, it is characterized in that, the height of the output shaft of aforementioned driving engine and the input shaft of aforementioned change speed gear box is configured to the height and position height of taking gangboard than the Drive Section of aforementioned vehicle respectively, aforementioned driving system is bent downwardly near aforementioned front portion of taking gangboard, and, be configured in and be disposed on pedal operation portion in the aforementioned zone of the taking gangboard position arranged side by side along fore-and-aft direction in the transversely biasing of the aforementioned plate face of taking gangboard and under the state of plate face.
2. riding-type working truck as claimed in claim 1, aforementioned output shaft and aforementioned input shaft extend to the left side of aforementioned vehicle, aforementioned driving system constitutes the strap drive formula system that has the driving band that extends between aforementioned output shaft and aforementioned input shaft end separately, and the aforementioned extension of taking gangboard more extends to the outside of car body than aforementioned driving system.
3. the described riding-type working truck of claim 1, aforementioned output shaft and aforementioned input shaft extend to the left side of aforementioned vehicle, aforementioned driving system constitutes the strap drive formula system that has the driving band that extends between aforementioned output shaft and aforementioned input shaft end separately, the aforementioned output shaft zone of aforementioned driving system is positioned at than on the high horizontal surface of aforementioned front-wheel, makes can not abut on the aforementioned front-wheel when carrying out the steering operation of aforementioned front-wheel.
4. riding-type working truck as claimed in claim 1, aforementioned change speed gear box forms, and the efferent that has the output shaft of the usefulness of travelling is positioned on the lower position of this change speed gear box.
5. riding-type working truck as claimed in claim 4 is disposed with a plurality of oil sealings between the output shaft of aforementioned change speed gear box and the aforementioned usefulness of travelling, the oil sealing that is installed on the outermost locations of aforementioned change speed gear box can load and unload from the outside of change speed gear box.
6. riding-type working truck as claimed in claim 4, the transmission system of the usefulness of travelling and trailing wheel are equipped with in aforementioned change speed gear box with differential attachment, the variable speed operation axle of aforementioned transmission system and aforementioned trailing wheel are with the operating axis that can stop differential lockable mechanism of differential attachment, to be positioned at the top that is provided to aforementioned change speed gear box than the aforementioned higher locational mode of height and position of taking gangboard.
7. riding-type working truck as claimed in claim 1, power take-off shaft are equipped with in aforementioned change speed gear box, and the accessory drive system that carries out transmission of power to aforementioned power take-off shaft from aforementioned input shaft is provided to the inner and upper of aforementioned change speed gear box.
8. riding-type working truck as claimed in claim 7, aforementioned accessory drive system constitutes the shaft drive formula system with the attachment driving shaft that is between aforementioned input shaft and the aforementioned power take-off shaft, the posture of aforementioned attachment driving shaft is, intersects with respect to the posture of each transmission shaft of the driving transmission agent between the output shaft that is in aforementioned input shaft and the aforementioned usefulness of travelling.
9. riding-type working truck as claimed in claim 7, on aforementioned input shaft, be equipped with the assisted clutch that can carry out with respect to the transmission switching of aforementioned power take-off shaft, the operating axis of aforementioned assisted clutch is configured in the top of aforementioned change speed gear box to be positioned at the higher locational mode of height and position of taking gangboard than aforementioned.
10. riding-type working truck as claimed in claim 1, by power operated Hydraulic Pump from aforementioned driving engine, at the rear of aforementioned driving engine, be positioned at than aforementioned driving system more forward state the central portion of taking gangboard and than aforementioned panels face more by on the position of top.
11. riding-type working truck as claimed in claim 1, the central authorities of operating oil tank on the left and right directions that is configured in body below the driving engine.
12. riding-type working truck as claimed in claim 1 or 2, aforementioned input shaft are configured in the below of being located on the aforementioned working truck of attending a banquet.
13. riding-type working truck as claimed in claim 1 or 2, the front-end configuration of aforementioned change speed gear box be located on the aforementioned working truck attend a banquet below.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004181272A JP4429092B2 (en) | 2004-06-18 | 2004-06-18 | Tractor |
| JP181272/04 | 2004-06-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1709739A CN1709739A (en) | 2005-12-21 |
| CN100345703C true CN100345703C (en) | 2007-10-31 |
Family
ID=35706049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100627146A Active CN100345703C (en) | 2004-06-18 | 2005-03-30 | Sitting type operation machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4429092B2 (en) |
| CN (1) | CN100345703C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5131730B2 (en) * | 2007-03-12 | 2013-01-30 | 株式会社イシダ | X-ray inspection apparatus and production system |
| CN103444291B (en) * | 2013-08-19 | 2016-03-02 | 潍坊润达机械有限公司 | A kind of four-wheel farm working machinery adopting speed changing box for walking tractor |
| KR102331676B1 (en) * | 2017-09-13 | 2021-11-25 | 얀마 파워 테크놀로지 가부시키가이샤 | work vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3921742A (en) * | 1970-08-10 | 1975-11-25 | Kloeckner Humboldt Deutz Ag | Vehicle, especially motor vehicle for agricultural purposes |
| CN87201491U (en) * | 1987-04-25 | 1988-03-23 | 孙树才 | Tractor with tank setted before engine |
| CN2271231Y (en) * | 1996-09-05 | 1997-12-31 | 常兴华 | Doulble-funtion plow harrow |
| CN2289707Y (en) * | 1996-09-10 | 1998-09-02 | 山东潍坊拖拉机厂 | Tractor |
| CN2303741Y (en) * | 1997-05-15 | 1999-01-13 | 郭苗成 | Connection device for engine and gear-box |
| JPH1191379A (en) * | 1997-09-18 | 1999-04-06 | Kubota Corp | Work vehicle |
-
2004
- 2004-06-18 JP JP2004181272A patent/JP4429092B2/en not_active Expired - Fee Related
-
2005
- 2005-03-30 CN CNB2005100627146A patent/CN100345703C/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3921742A (en) * | 1970-08-10 | 1975-11-25 | Kloeckner Humboldt Deutz Ag | Vehicle, especially motor vehicle for agricultural purposes |
| CN87201491U (en) * | 1987-04-25 | 1988-03-23 | 孙树才 | Tractor with tank setted before engine |
| CN2271231Y (en) * | 1996-09-05 | 1997-12-31 | 常兴华 | Doulble-funtion plow harrow |
| CN2289707Y (en) * | 1996-09-10 | 1998-09-02 | 山东潍坊拖拉机厂 | Tractor |
| CN2303741Y (en) * | 1997-05-15 | 1999-01-13 | 郭苗成 | Connection device for engine and gear-box |
| JPH1191379A (en) * | 1997-09-18 | 1999-04-06 | Kubota Corp | Work vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006001465A (en) | 2006-01-05 |
| CN1709739A (en) | 2005-12-21 |
| JP4429092B2 (en) | 2010-03-10 |
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