CN101120631B - Agricultural tractor - Google Patents
Agricultural tractor Download PDFInfo
- Publication number
- CN101120631B CN101120631B CN2007100857202A CN200710085720A CN101120631B CN 101120631 B CN101120631 B CN 101120631B CN 2007100857202 A CN2007100857202 A CN 2007100857202A CN 200710085720 A CN200710085720 A CN 200710085720A CN 101120631 B CN101120631 B CN 101120631B
- Authority
- CN
- China
- Prior art keywords
- aforementioned
- grounding body
- rotary tillage
- tillage device
- supporting arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Soil Working Implements (AREA)
Abstract
An agricultural tractor, including: an body, supported by a plurality of wheels containing left as well as right rear wheels; a rotary tillage device, which is supported on the rear of the body with the mode of moving along up and down direction; a first earthing body setting on one part of the crossrange right side part and the crossrange left side part of the rotary tillage device, and a second earthing body setting on the other part, to set the tillage depth of the rotary tillage device by means of the contact of the first as well as the second earthing bodies and the field; a bearing device, for supporting the first earthing body, so as to make it turn action posture contacting to the field, and a non action posture departing from the field upwards.
Description
Technical field
The present invention relates to go up and down to be supported with freely the rotary tillage device structure in the farm tractor of rotary tillage device at the rear portion of body.
Background technology
As the rotary tillage device of going up and down to be bearing in freely After-Body, as disclosed in the Japan special public clear 58-31882 number (Fig. 1, Fig. 2, Fig. 4), the device that possesses grounding body in the horizontal right side and the left side of rotary tillage device is arranged.Thus, contact with the field, and set the height of rotary tillage device, thereby set the ploughing and weeding degree of depth of rotary tillage device with respect to the field through making grounding body.
In farm tractor, carry out following operation sometimes, that is, on one side along the furrow sidepiece ploughing and weeding furrow limit, the horizontal right side through rotary tillage device (or left side) on one side of advancing.In this case, for example, make rotary tillage device partially on the right side, so that the horizontal right side of rotary tillage device is positioned at the lateral outer side portion rear of off hind wheel with respect to body.Steering operation through carrying out front-wheel can make the horizontal right side of rotary tillage device be positioned near the furrow and carries out ploughing and weeding so that off hind wheel is advanced near furrow.
For example, in the softer field of soil property, the part of furrow can be caved in and flowed into the furrow limit sometimes, makes the furrow limit become inclined plane (inclined plane that the upward slope that from the field, raises towards furrow is such).
Under such state; If carry out following operation; That is, on one side along the ploughing and weeding furrow limit, horizontal right side (or horizontal left side) that furrow are advanced and passed through rotary tillage device on one side, then the right grounding body of rotary tillage device can ride on the inclined plane on furrow limit sometimes as aforementioned; Rotary tillage device is lifted, and can not carry out carrying out the state of horizontal ploughing and weeding or can not obtaining enough ploughing and weeding degree of depth during by rotary tillage device ploughing and weeding furrow limit by rotary tillage device and become.
Summary of the invention
The objective of the invention is to realize; Rear portion at body goes up and down to be supported with freely in the farm tractor of rotary tillage device; Can suitably carry out following operation, that is, on one side along the furrow horizontal right side or the ploughing and weeding furrow limit, left side (furrow avris) through rotary tillage device on one side of advancing.
For realizing above-mentioned purpose, farm tractor of the present invention comprises:
Body is bearing on a plurality of wheels that comprise the right side and left rear wheel;
Rotary tillage device is supported in the rear portion of aforementioned body with the mode that can move along the vertical direction;
Side's in the horizontal right side that is configured in aforementioned rotary tillage device and the horizontal left side the 1st grounding body and be configured in the horizontal right side of aforementioned rotary tillage device and the opposing party's in the horizontal left side the 2nd grounding body; The the aforementioned the 1st and the 2nd grounding body constitutes; Through the aforementioned the 1st with the contacting of the 2nd grounding body and field, set the ploughing and weeding degree of depth of rotary tillage device;
Supporting arrangement supports aforementioned the 1st grounding body, makes it can become effect posture that contacts with the field and the non-effect posture of leaving to the top from the field.
Therefore; Carrying out following operation; That is, edge furrow are advanced on one side under the situation through the horizontal right side of rotary tillage device or ploughing and weeding furrow limit, left side (furrow avris), and the 1st grounding body (furrow avris) that will be positioned at the lateral outer side portion rear of the right side or left rear wheel is made as non-effect posture and gets final product.
Thus, can not contact with the inclined plane on furrow limit, so, be difficult for producing following state, that is, the horizontal right side of rotary tillage device or left side (furrow avris) is lifted and can not carries out horizontal ploughing and weeding by rotary tillage device.
In addition, in a preferred embodiment, preferably,
The horizontal right side of aforementioned rotary tillage device and the aforementioned the opposing party in the horizontal left side, have the transmission case of taking in transmission mechanism, said transmission mechanism will be delivered to the tilling shaft of aforementioned rotary tillage device from the driving force of aforementioned body,
The horizontal right side of aforementioned rotary tillage device and the aforementioned side in the horizontal left side, have the bearing support of rotatably mounted aforementioned tilling shaft,
The aforementioned supporting arrangement that supports aforementioned the 1st grounding body is supported in aforementioned bearing support side.
Because dress will be from the transmission of power of the body transmission mechanism (driving-chain etc.) to tilling shaft in need be in transmission case; So the transmission case transverse width is big slightly; Relative therewith; Owing to adorn the transmission mechanism of aforementioned that kind in need be in supported box (bearing support), so the transverse width of supported box is narrower.
Therefore, can make horizontal right side rotary tillage device, that be provided with the narrow supported box of transverse width or left side (furrow avris) and furrow approaching, come ploughing and weeding furrow limit.
In addition, the structure of preferred following that kind in embodiment.
Aforementioned supporting arrangement has the bolster that extends along the fore-and-aft direction of aforementioned body, and the displacement of aforementioned the 1st grounding body between aforementioned effect posture and non-effect posture is the swing of carrying out around aforementioned bolster.
Aforementioned rotary tillage device is configured to respect to body partially on the right side or the left side so that the horizontal right side of aforementioned rotary tillage device or laterally left-hand portion in the lateral outer side portion rear of the aforementioned right side or left rear wheel.
Each of the aforementioned the 1st and the 2nd grounding body has the plate member of circular shape when being side-looking.
The the aforementioned the 1st and the 2nd grounding body front-end configuration separately is on the position higher than its rear end.
The the aforementioned the 1st and the 2nd grounding body has respectively and is used under its effect posture, regulating the mechanism with respect to the above-below direction position of aforementioned rotary tillage device.
In the side that aforementioned rotary tillage device is leaned on partially, the supporting arrangement of aforementioned the 1st grounding body of supporting is installed.
Description of drawings
Fig. 1 is the integral left end view of farm tractor and rotary tillage device.
Fig. 2 is the whole vertical view of farm tractor and rotary tillage device.
Fig. 3 is the overall perspective view of observing from the left back of farm tractor and rotary tillage device.
Fig. 4 is the vertical profile rearview of rotary tillage device.
Fig. 5 is the left side view of rotary tillage device.
Fig. 6 is the right side view of rotary tillage device.
Fig. 7 is under the state that right grounding body is set at the effect posture, the stereogram of observing from the right back of rotary tillage device.
Fig. 8 is being set to right grounding body under the state midway of non-effect posture from the effect posture stereogram of observing from the right back of rotary tillage device.
Fig. 9 is being set at right grounding body under the state of non-effect posture, the stereogram of observing from the right back of rotary tillage device.
Embodiment
Below, based on description of drawings preferred implementation of the present invention.
Fig. 1, Fig. 2, Fig. 3 represent the integral body of farm tractor, connect gearbox 2 and constitute body at the rear portion of right and left organism frame 1, at right and left organism frame 1 upper support the right side and the near front wheel 3 and engine 4 are arranged, and at gearbox 2 upper supports the right side and left rear wheel 5 are arranged.The control handwheel 6 that the right side and the near front wheel 3 are carried out steering operation is arranged on the rear side of engine 4; Upper support at gearbox 2 has driver seat 7; The power of engine 4 is delivered to gearbox 2 via the interior tape handler (not shown) that is loaded in the cover 8, thereby the power of engine 4 is passed to the right side and left rear wheel 5 and the PTO axle 10 that is arranged on gearbox 2 rear portions.
Like Fig. 1, Fig. 2, shown in Figure 3, on the right side of hollow rubber tire form and the lateral outer side portion of left rear wheel 5, be connected with the right side and left redundant wheel 9 (being equivalent to trailing wheel).The right side and left redundant wheel 9 have: a pair of rim part 9a of ring-type, stride the tabular grounding parts 9b that rim part 9a links and be attached at the 9c of spoke portion on the rim part 9a etc., the 9c of spoke portion is attached on the wheel part of the right side and left rear wheel 5.
Like Fig. 1, Fig. 2, shown in Figure 3, be fixed with carriage 11 on the top, rear portion of gearbox 2, on carriage 11, swing up and down and be supported with a upward connecting rod 12 freely.In the rear lower of gearbox 2, swing up and down and be supported with two lower links 13 freely, stride the rear lower of gearbox 2 and the bar 45 that lower link 13 is connected with decision lower link 13 left and right directions positions.On the top, rear portion of gearbox 2, swing up and down and be supported with two lifting arms 14 freely, the hydraulic cylinder (not shown) that lifting arm 14 is set at the top of gearbox 2 drives and swings up and down, and strides lifting arm 14 and is connected with bar 15 with lower link 13.
Like Fig. 1, Fig. 2, shown in Figure 3, have in the horizontal left side of driver seat 7: main transformer speed action bars 16, put (not shown) with the main transformer quick-mounting and operate being provided in gearbox 2 inner advancing; And secondary variable speed operation bar 17, operate with secondary speed-changing device (not shown) being equipped in advancing that gearbox 2 inside have.Horizontal right side at driver seat 7 has descending operation bar 18, and said descending operation bar 18 makes hydraulic cylinder action and drives lifting arm 14 and swing up and down (rotary tillage device of stating after the driving 19 is gone up and down).
Then, the rotary tillage device 19 that is connected with last connecting rod 12 and lower link 13 is described.
Like Fig. 1, Fig. 2, Fig. 3, shown in Figure 4; Has helical teeth roller box 20; Crosswise fixed has the right and left bearing support 21 of pipe shape on helical teeth roller box 20; On right and left bearing support 21, be fixed with carriage 22, stride helical teeth roller box 20 and carriage 22 and be fixed with the cross section and be the tabular framework 23 that コ word shape and front side are opened wide.Be fixed with carriage 24 on the top of framework 23, last connecting rod 12 swings up and down the top that is connected carriage 24 freely, and lower link 13 swings up and down and is connected freely on the carriage 22.
Like Fig. 1, Fig. 2, Fig. 3, shown in Figure 4; The narrower tabular bearing support 25 of transverse width is fixed on the end of right bearing support 21 and extends downwards; Be fixed with shaft hub 25a in the bottom of bearing support 25, transmission case 26 is fixed on the end of left bearing support 21 and downwards and extends.Transmission case 26 is made up of substrate element 26a and cap assembly 26b, and substrate element 26a is fixed on the end of left bearing support 21, is fixed with shaft hub 26c in the bottom of substrate element 26a.
Like Fig. 3 and shown in Figure 4, the power shaft 27 that is equipped with in the helical teeth roller box 20 is forwards outstanding, strides PTO axle 10 and output shaft 27, is connected with power transmission shaft 28 via universal joint 29.Stride the inside of helical teeth roller box 20, left bearing support 21 and transmission case 26, dispose power transmission shaft 30,, be fixed on helical gear 27a and the helical gear 30a engagement that is fixed on the power transmission shaft 30 on the power shaft 27 in the inside of helical teeth roller box 20.
As shown in Figure 4; Stride the shaft hub 25a of bearing support 25 and the shaft hub 26c of transmission case 26; Set up and rotate along left and right directions and be supported with tilling shaft 31 freely; In the inside of transmission case 26, stride the sprocket wheel 30b that is fixed on the power transmission shaft 30 and be fixed on the sprocket wheel 31a on the tilling shaft 31, be wound with driving-chain 32 (example of drive disk assembly).As drive disk assembly, except chain, also known technology such as power transmission shaft capable of using.The a plurality of ploughing and weeding pawl 31b that when top view, are bent into L word shape separate set compartment of terrain and are fixed on the tilling shaft 31.Through above structure, the power of PTO axle 10 is delivered to tilling shaft 31 via power transmission shaft 28, power shaft 27, power transmission shaft 30 and driving-chain 32, and tilling shaft 31 is driven and counterclockwise rotates to the paper of Fig. 1.
Like Fig. 4, Fig. 5, shown in Figure 6, on the substrate element 26a of bearing support 25 and transmission case 26, be fixed with side plate 33, to stride the right side and left plate 33 and be fixed with top board 34, top board 34 is positioned at the top of tilling shaft 31.Stride the right side and left plate 33 and swing up and down around transverse axis core P1 and be supported with rear portion cover 35 freely, stride right carriage 22 and be connected with chain (chain) 36,, can regulate the last lower angle of rear portion cover 35 through regulating the length of chain (chain) 36 with rear portion cover 35.
Like Fig. 2 and shown in Figure 3; Dispose rotary tillage device 19 with respect to body to right avertence ground; Make lateral outer side portion rear that the horizontal right side of rotary tillage device 19 is positioned at right redundant wheel 9 (on the left and right directions of body; The lateral outer side portion of right redundant wheel 9 and the horizontal right side of rotary tillage device 19 are positioned at roughly the same position), (, setting right bearing support 21 than left bearing support 21 length) like Fig. 2 and shown in Figure 4.Bearing support 25 is positioned at the horizontal right side (bearing support 25 is positioned at the lateral outer side portion rear of right redundant wheel) of rotary tillage device 19.Transmission case 26 is positioned at the horizontal left side of rotary tillage device 19.
Then, the right grounding body 37 (the 1st grounding body) of the horizontal right side that is provided in rotary tillage device 19 and the left grounding body 38 (the 2nd grounding body) that is provided in the horizontal left side of rotary tillage device 19 are described.In addition, supporting arrangement is described, in said supporting arrangement support right grounding body 37 and the left grounding body 38 one makes it can become effect posture that contacts with the field and the non-effect posture of leaving to the top from the field.
Like Fig. 4, Fig. 6, shown in Figure 7, right grounding body 37 is that the sheet material of growing crosswise is formed circular-arc and constitutes, and has flat installation portion 37a at the front portion and the rear portion of right grounding body 37.Support plate 46 is fixed on the right plate 33 with the front side of striding bearing support 25 and the mode of rear side, in the front portion of support plate 46 and the kink 46a at rear portion be fixed with shaft hub 39,40 up and down.Have before and after supporting arm 41, before and after the bolster 41b of supporting arm 41 rotation is inserted in the shaft hub 39 freely.Before and after the bottom of supporting arm 41 is bent to form installation portion 41a.The installation portion 37a of right grounding body 37 is fixed on the installation portion 41a of supporting arm 41 before and after by bolt 42.
Like Fig. 4 and shown in Figure 5; The same with right grounding body 37; Left side grounding body 38 also forms sheet material circular-arc and constitutes; Front portion and rear portion at left grounding body 38 have flat installation portion 38a, and the installation portion 38a of left grounding body 38 is fixed on front portion and the rear portion of the substrate element 26a of transmission case 26 by bolt 42.In this case, left grounding body 38 is set at the effect posture that contacts with the field all the time.
Fig. 4, Fig. 6, state shown in Figure 7 are the states that right grounding body 37 is set at the effect posture that contacts with the field.Under the effect posture, the pin 41c that is fixed on the pars intermedia of supporting arm 41 before and after inserts propeller boss 40, and locking pin 43 is installed on the bolster 41b of preceding supporting arm 41, thereby right grounding body 37, before and after supporting arm 41 is fixed to the effect posture.
Thus, contact with the field through making the right side and left grounding body 37,38, and set the height of rotary tillage device 19, thereby set the ploughing and weeding degree of depth of rotary tillage device 19 with respect to the field.In this case; Like Fig. 5, Fig. 6, shown in Figure 7; Installation portion 37a, 38a at right and left grounding body 37 are last, are formed with a plurality of installing hole 37b, 38b of fixing by bolt 42 of being used for along the vertical direction, installing hole 37b, the 38b of the right and left grounding body 37 through changing construction bolt 42; Can change right and left grounding body 37,38 height under the effect posture with respect to rotary tillage device 19, can change the ploughing and weeding degree of depth of rotary tillage device 19 thus.
Then, the state that right grounding body 37 is set at the non-effect posture of leaving to the top from the field is described.
Like Fig. 4, Fig. 6, shown in Figure 7, be fixed on the front portion of right plate 33 through the maintaining part 44 that constitutes of bending bar.As shown in Figure 8; In right grounding body 37; The bolster 41b of supporting arm 41 takes off with 43 the past of locking pin; And make right grounding body 37, before and after supporting arm 41 (bolster 41b) along shaft hub 39 forwards (paper of Fig. 6 and Fig. 8 is right-hand) move, thus, the pin 41c of supporting arm 41 is before and after extracted from shaft hub 40.
Like Fig. 8 and shown in Figure 9; Around shaft hub 39 with right grounding body 37, before and after supporting arm 41 lifts about 180 ° to the top; And make right grounding body 37, before and after supporting arm 41 (bolster 41) along shaft hub 39 rearward (the paper left of Fig. 6 and Fig. 9) move, thereby preceding supporting arm 41 is packed in the maintaining part 44.
Then, on the bolster 41b of supporting arm 41 before once more locking pin 43 being installed to, and right grounding body 37 remained the non-effect posture of leaving to the top from the field.
Other embodiments
In aforementioned embodiments; Under the situation that does not have the right side and left redundant wheel 9; As long as rotary tillage device 19 is configured to respect to body partially on the right side,, the horizontal right side of rotary tillage device 19 (right grounding body 37) get final product so that being positioned at the lateral outer side portion rear of off hind wheel 2.
In addition, in aforementioned a plurality of embodiments, also can be equipped with transmission case 26, be equipped with bearing support 25 in horizontal left side in the horizontal right side of rotary tillage device 19.
If constitute like this; Then rotary tillage device 19 is configured to respect to the body side that keeps left partially; So that the horizontal left side of rotary tillage device 19 (left grounding body 38) is positioned at the lateral outer side portion rear of left redundant wheel 9 (under the situation that does not have the right side and left redundant wheel 9, being left rear wheel 2); Thereby as Fig. 7, Fig. 8, shown in Figure 9, left grounding body 38 can freely become effect posture that contacts with the field and the non-effect posture of leaving to the top from the field.
Claims (6)
1. farm tractor comprises:
Body is bearing on a plurality of wheels that comprise the right side and left rear wheel;
Rotary tillage device is supported in the rear portion of aforementioned body with the mode that can move along the vertical direction;
Arbitrary side's in the horizontal right side that is configured in aforementioned rotary tillage device and the horizontal left side bearing support and the 1st grounding body and be configured in the horizontal right side of aforementioned rotary tillage device and the laterally the opposing party's in the left side transmission case and the 2nd grounding body; The the aforementioned the 1st and the 2nd grounding body constitutes; Through the aforementioned the 1st with the contacting of the 2nd grounding body and field, set the ploughing and weeding degree of depth of rotary tillage device;
Supporting arrangement supports aforementioned the 1st grounding body, makes it can become effect posture that contacts with the field and the non-effect posture of leaving to the top from the field,
Aforementioned supporting arrangement constitutes,
Support plate is fixed on the side plate of bearing support side with the front side of striding aforementioned bearing support and the mode of rear side; In the front portion of support plate and the kink at rear portion be fixed with shaft hub up and down; Before and after the rotation of the bolster of supporting arm is inserted in the shaft hub of upside freely; The installation portion of aforementioned the 1st grounding body is by being bolted on the installation portion that is formed at aforementioned before and after supporting arm
On the installation portion of the 1st grounding body and the 2nd grounding body; Be formed with a plurality of installing holes of fixing by bolt of being used for along the vertical direction; Through changing the aforementioned installing hole that aforementioned bolt is installed; Aforementioned the 1st grounding body and aforementioned the 2nd grounding body are with respect to the height of aforementioned rotary tillage device under the aforementioned effect posture of ability change
About the 1st grounding body; Under aforementioned effect posture; The pin that is fixed on the pars intermedia of aforementioned before and after supporting arm inserts the shaft hub of downside, on the bolster of preceding supporting arm, locking pin is installed, thereby aforementioned the 1st grounding body, before and after supporting arm is fixed to the effect posture; Under aforementioned non-effect posture; Preceding supporting arm is packed in the maintaining part of the front portion through the side plate that is fixed on aforementioned bearing support side that forms of bending bar, before locking pin is installed on the bolster of supporting arm, and with aforementioned the 1st grounding body, before and after supporting arm remains aforementioned non-effect posture.
2. farm tractor as claimed in claim 1 is characterized in that,
Aforementioned transmission case is taken in transmission mechanism, and said transmission mechanism will be delivered to the tilling shaft of aforementioned rotary tillage device from the driving force of aforementioned body,
The rotatably mounted aforementioned tilling shaft of aforementioned bearing support,
The aforementioned supporting arrangement that supports aforementioned the 1st grounding body is supported in aforementioned bearing support side.
3. according to claim 1 or claim 2 farm tractor is characterized in that,
Aforementioned rotary tillage device is configured to respect to body partially on the right side or the left side so that the horizontal right side of aforementioned rotary tillage device or laterally left-hand portion in the lateral outer side portion rear of the aforementioned right side or left rear wheel.
4. according to claim 1 or claim 2 farm tractor is characterized in that,
Each of the aforementioned the 1st and the 2nd grounding body has the plate member of circular shape when being side-looking.
5. according to claim 1 or claim 2 farm tractor is characterized in that,
The the aforementioned the 1st and the 2nd grounding body front-end configuration separately is on the position higher than its rear end.
6. farm tractor as claimed in claim 3 is characterized in that,
In the side that aforementioned rotary tillage device is leaned on partially, the supporting arrangement of aforementioned the 1st grounding body of supporting is installed.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006217131A JP2008035826A (en) | 2006-08-09 | 2006-08-09 | Farming tractor |
| JP2006217131 | 2006-08-09 | ||
| JP2006-217131 | 2006-08-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101120631A CN101120631A (en) | 2008-02-13 |
| CN101120631B true CN101120631B (en) | 2012-06-06 |
Family
ID=39083300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100857202A Active CN101120631B (en) | 2006-08-09 | 2007-03-08 | Agricultural tractor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2008035826A (en) |
| CN (1) | CN101120631B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105165147A (en) * | 2015-10-09 | 2015-12-23 | 吴千生 | Liftable rotary tilling device for walking tractor |
| CN108432367A (en) * | 2018-04-03 | 2018-08-24 | 莱州奥伦农业机械有限公司 | Caterpillar band self-propelled rotary cultivator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1227147A (en) * | 1967-04-01 | 1971-04-07 | ||
| US4240508A (en) * | 1978-03-23 | 1980-12-23 | Kubota Ltd. | Power-driven rotary ground working implement |
-
2006
- 2006-08-09 JP JP2006217131A patent/JP2008035826A/en active Pending
-
2007
- 2007-03-08 CN CN2007100857202A patent/CN101120631B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1227147A (en) * | 1967-04-01 | 1971-04-07 | ||
| US4240508A (en) * | 1978-03-23 | 1980-12-23 | Kubota Ltd. | Power-driven rotary ground working implement |
Non-Patent Citations (1)
| Title |
|---|
| 同上. |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101120631A (en) | 2008-02-13 |
| JP2008035826A (en) | 2008-02-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2727802B1 (en) | Working vehicle | |
| CN101120631B (en) | Agricultural tractor | |
| US4585084A (en) | Agricultural tractor | |
| US20240025477A1 (en) | Steering knuckle gearbox assembly | |
| JP4250604B2 (en) | Work wheel rear wheel support structure | |
| JP5018897B2 (en) | Seedling transplanter | |
| JP4405885B2 (en) | Paddy field work vehicle | |
| WO1984001336A1 (en) | An agricultural tractor | |
| CN201161550Y (en) | Bidirectional-running liftable multi-service car for spraying farm insecticide on farmland | |
| CN104320966B (en) | rice transplanter | |
| JP3847110B2 (en) | Passenger work vehicle | |
| US1372339A (en) | Mowing attachment for automobiles | |
| CN203120411U (en) | Walking driving device of traction power chassis suitable for long-stalked crop agricultural machinery operation | |
| JP4052962B2 (en) | Paddy field machine | |
| CN107140044B (en) | Profiling triangle crawler-type driving mechanism | |
| JP4533402B2 (en) | Ride type rice transplanter | |
| JP3666027B2 (en) | Agricultural equipment traveling device | |
| JP2537139B2 (en) | Wheel steering device for riding type agricultural machine | |
| JP3778823B2 (en) | Passenger work vehicle | |
| JP3425798B2 (en) | Passenger management machine | |
| CN206402644U (en) | A kind of riding type wheel steering cultivator steering structure | |
| JP3776006B2 (en) | Ride type paddy field work vehicle | |
| JP4083133B2 (en) | Steering structure of a four-wheel drive work vehicle | |
| US1004139A (en) | Traction-plow. | |
| JP3504575B2 (en) | Work vehicle steering system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |