CN109017987A - Large-scale rake wheel follower steering device - Google Patents
Large-scale rake wheel follower steering device Download PDFInfo
- Publication number
- CN109017987A CN109017987A CN201810985890.4A CN201810985890A CN109017987A CN 109017987 A CN109017987 A CN 109017987A CN 201810985890 A CN201810985890 A CN 201810985890A CN 109017987 A CN109017987 A CN 109017987A
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- China
- Prior art keywords
- steering
- hinged
- wheel
- bar
- link
- 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.)
- Pending
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- 102000004315 Forkhead Transcription Factors Human genes 0.000 claims description 5
- 108090000852 Forkhead Transcription Factors Proteins 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 241000656145 Thyrsites atun Species 0.000 description 1
- 230000000916 dilatatory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/20—Links, e.g. track rods
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D80/00—Parts or details of, or accessories for, haymakers
Abstract
The invention discloses a kind of large-scale rake wheel follower steering devices, including pair of wheels and hitch bar, joint tongue, steering link, intermediate steering link, adjust connecting rod, steering arm, steering mechanism and wheel shaft, hitch bar both ends are hinged with the rear hanger bracket both ends of tow tractor respectively, the longitudinal center of joint tongue front end and hitch bar is hinged, rear end is connect with front end of rack, and rear end of rack is fixedly connected with triangle wheel carrier front end.Steering link rear end is successively hinged with intermediate steering link and adjusting connecting rod, it is hinged by the first hinged set and steering arm one end to adjust rod rear end, it is hinged in the middle part of the steering arm other end and steering mechanism, respectively with wheel articulation, triangle wheel carrier rear portion both ends are hinged with steering mechanism both ends respectively at steering mechanism both ends.Structure of the invention is compact, does not need to install other power or hydraulic tube piece, and manufacturing cost is low, extends the service life of wheel and wheel shaft, improves the reliability that large-scale rake uses.
Description
Technical field
The present invention relates to a kind of transfer of rake wheel, especially a kind of large-scale rake wheel is dilatory with traction
Machine turns to and the device of steering, belongs to agricultural machinery technological field.
Background technique
Rake for herbage or stalk to hug grass in heaps, transported outward after breaking into bale using baler.Large-scale rake
Refer to that working width reaches the rake of 4~6m, figure is larger heavier, and the pair of wheels of existing large size rake is without steering
Device, when it is turned to tow tractor, the angle of pair of wheels cannot change, the steering with tractor can only be forced and
Center of rotation around tow tractor rotates, and steering is very laborious, and flexibility is poor；The load of wheel and wheel shaft is larger and not phase
Deng seriously affecting the service life of rake wheel and wheel shaft.
Summary of the invention
The object of the present invention is to provide it is a kind of it is compact-sized, easy to operate, be not necessarily to other external power or hydraulic tube piece, system
Make large-scale rake wheel follower steering device at low cost.
The present invention is achieved by the following technical programs:
A kind of large size rake wheel follower steering device, including the pair of wheels being arranged under large-scale rake rear portion, and
Hitch bar, steering link, intermediate steering link, adjusts connecting rod, steering arm, steering mechanism and wheel shaft, hitch bar both ends point at joint tongue
Not hinged with the rear hanger bracket both ends of tow tractor, the longitudinal center of joint tongue front end and hitch bar is hinged, joint tongue rear end and machine
The connection of frame front end, rear end of rack are fixedly connected with triangle wheel carrier front end；The hinged place B of steering link front end and hitch bar deviates
Hitch bar longitudinal center and joint tongue front end hinged place A, steering link rear end is successively hinged with intermediate steering link and adjusting connecting rod,
It is hinged by the first hinged set and steering arm one end to adjust rod rear end, it is hinged in the middle part of the steering arm other end and steering mechanism, turn
Pass through wheel shaft and wheel articulation respectively to mechanism both ends；Triangle wheel carrier rear portion both ends are hinged with steering mechanism both ends respectively.
The purpose of the present invention can also be further realized by following technical measures.
Further, the hitch bar and in the hinged place B of steering link front end and joint tongue front end and hitch bar are longitudinal
It is mounted with hitch bar oscillating bearing respectively in center and joint tongue front end hinged place A, joint tongue front end and steering link front end lead to respectively
It crosses hinged across the preceding lateral pin and hitch bar for corresponding to hitch bar oscillating bearing.Gag lever post is respectively and vertically fixed at joint tongue front end and hangs
The two sides of extension bar longitudinal center hinged place A.
Further, steering link oscillating bearing is fixedly connected with steering link rear end, and steering link oscillating bearing injects
In the connecting rod fork head of intermediate steering link front end, pass through the company of passing across between steering link rear end and intermediate steering link front end
The rear lateral pin of pike pole forming head and steering link oscillating bearing is hinged.
Further, the steering arm is in horizontal L shape, the horizontal L-shaped horizontal long side end and adjusting connecting rod
The adjusting screw of rear end is hinged by the first hinged set, and horizontal L-shaped vertical short end both sides of head is respectively and in steering mechanism
Portion is hinged；The point of intersection pin hole of L-shaped horizontal long side and L-shaped vertical short side in the middle part of middle lateral pin and triangle wheel carrier by cutting with scissors
It connects.
Further, the wheel shaft is L-shaped, the upright bar including being fixedly connected and horizon bar, one end of the horizon bar with
The sleeve of wheel articulation, triangle wheel carrier rear portion both ends packs into upright bar respectively, and it is another to be resisted against horizon bar on the downside of the sleeve
The upside at end.
Further, the steering mechanism include the articulated linkage for being symmetricly set on steering arm two sides, adjustable-length pull rod,
Second hinged set and steering connecting lever, the steering connecting lever is square, including the level board being vertically fixedly connected and vertical sleeve.
Articulated linkage is hinged close to one end of steering arm and the side of steering arm, articulated linkage one end and adjustable-length far from steering arm
Pull rod one end is hinged, and the adjustable-length pull rod other end is hinged by the second hinged set and level board one end of steering connecting lever, turns to
The vertical sleeve of the connecting lever other end covers in the upright bar of wheel shaft, and is located on the upside of the sleeve of triangle wheel carrier rear portion one end.
Further, A-frame is located at the upside of triangle wheel carrier, the rack of A-frame front end and large-scale rake
Rear end is fixedly connected, and set square is fixed on A-frame, and A-frame rear end sides each extend over out for fixing safety post
The tilting bar of will plate, the tilting bar are located above wheel.
Structure of the invention is compact, does not need to install other power or hydraulic tube piece, and manufacturing cost is low.Tow tractor turning
When, the rear hanger bracket of the rear part tilts therewith, and hinged hitch bar also tilts therewith with rear hanger bracket both ends, drives and deviates mounting
The steering link of bar longitudinal center hinged place B moves linearly, then successively drives intermediate steering link and adjusting link linear mobile,
So that middle lateral pin axis of the steering arm in the middle part of the upper end and triangle wheel carrier rotates, pass through the vertical short of steering arm lower end
Two swivel pins of side end head transverse direction produce the corresponding articulated linkage in steering arm lower end two sides, adjustable-length pull rod and the second hinged set
Raw one pushes away drawing effect, so that the steering connecting lever on pair of wheels rotates in same direction, then passes through the drive pair of wheels of wheel shaft with phase
The same radius of gyration rotates in same direction, and completes the follow-up steering of large-scale rake wheel.It is negative when pair of wheels of the invention turns to
Lotus is identical, and the load of a pair of axle spindles is also identical, extends the service life of wheel and wheel shaft, improves what large-scale rake used
Reliability.
The advantages and features of the present invention will be illustrated and explained by the non-limitative illustration of preferred embodiment below, these
Embodiment only provides as an example referring to attached drawing.
Detailed description of the invention
Fig. 1 is top view of the invention；
Fig. 2 is the structural schematic diagram of drive path of the present invention；
Fig. 3 is enlarged diagram hinged with steering arm, steering connecting lever and wheel shaft in the middle part of triangle wheel carrier.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
In fig. 1 and 2, before top is, after lower part is.The present embodiment includes one be arranged under large-scale rake rear portion
To wheel 1 and hitch bar 2, joint tongue 3, steering link 4, intermediate steering link 5, adjust connecting rod 6, steering arm 7, steering mechanism 8
With wheel shaft 9,2 both ends of hitch bar of cast steel are hinged with 120 both ends of rear hanger bracket of tow tractor 100 respectively, before joint tongue 3
Hold it is hinged with the longitudinal center of hitch bar 2,3 rear end of joint tongue is connect with 10 front end of rack, the rack inclined plate 101 of 10 rear end of rack and
The wheel carrier inclined plate 201 of 20 front end of triangle wheel carrier is fixedly connected.The hinged place B of 4 front end of steering link and hitch bar 2, which deviates, to be mounted
The hinged place A of bar longitudinal center and 3 front end of joint tongue turns in tow tractor 100 and the rear hanger bracket 101 of the rear part is driven to be in
When heeling condition, with the hinged hitch bar 2 in rear 101 both ends of hanger bracket around the hinged of its 3 front end of joint tongue and 2 longitudinal center of hitch bar
Center rotating and tilt, so as to drive deviate 2 longitudinal center hinged place B of hitch bar steering link 4 move linearly, finally
Complete the follow-up steering of large-scale rake pair of wheels 1.4 rear end of steering link successively with intermediate steering link 5 and adjust connecting rod 6
Hingedly, it is hinged by the first hinged set 61 and 7 right end of steering arm to adjust 6 rear end of connecting rod, 7 other end of steering arm and steering mechanism 8
Middle part is hinged, and 8 both ends of steering mechanism pass through wheel shaft 9 respectively and wheel 1 is hinged.20 rear portion both ends of triangle wheel carrier respectively with steering
8 both ends of mechanism are hinged.
As shown in Fig. 2, in hitch bar 2 and the hinged place B of 4 front end of steering link and joint tongue front end and hitch bar 2 are longitudinal
Be mounted with hitch bar oscillating bearing 21 in the A of center hinged place respectively, 3 front end of joint tongue and 4 front end of steering link respectively by across
The preceding lateral pin 22 and hitch bar 2 of corresponding hitch bar oscillating bearing 21 are hinged.Oscillating bearing can bear radial load but also bear
Axial load remains to normal use when the concentricity of support shaft and oscillating bearing is poor, has convenient for traction, strong flexibility
Advantage also will not influence 1 follow-up steering of wheel of large-scale rake in large-scale rake rough ride.3 front end of joint tongue with
The two sides of 2 longitudinal center hinged place A of hitch bar, vertically secure a pair of of gag lever post 31, can be to avoid large-scale rake because of rotation
Angle is excessive and causes to topple.
Steering link oscillating bearing 41 is fixedly connected with 4 rear end of steering link, and steering link oscillating bearing 41 injects centre
In the connecting rod fork head 51 of 5 front end of steering link, by passing across between 5 front end of 4 rear end of steering link and intermediate steering link
The rear lateral pin 52 of connecting rod fork head 51 and steering link oscillating bearing 41 is hinged.
Steering arm 7 is in horizontal L shape, and horizontal L-shaped horizontal 71 end of long side is adjustable with adjusting 6 rear end of connecting rod
Screw rod 61 is hinged by the first hinged set 62, convenient for adjusting the length of connecting rod 6, meets installation needs.Horizontal is L-shaped vertical
Straight 72 end two sides of short side pass through swivel pin 73 respectively and 8 middle part of steering mechanism is hinged, and middle lateral pin 74 sequentially passes through triangle wheel
The point of intersection pin hole of the middle part axle sleeve 202 of frame 20 and L-shaped horizontal long side 71 and L-shaped vertical short side 72, makes steering arm 7 and three
Angular wheel carrier 20 is hinged.
Wheel shaft 9 is L-shaped, the upright bar 91 including being fixedly connected and horizon bar 92, and one end of horizon bar 92 and wheel 1 are hinged,
The sleeve 203 at 20 rear portion both ends of triangle wheel carrier is packed into respectively in upright bar 91, and 92 other end of horizon bar is resisted against on the downside of sleeve 203
Upside.
As shown in Figures 2 and 3, steering mechanism 8 includes articulated linkage 81, the adjustable length for being symmetricly set on 7 two sides of steering arm
It spends pull rod 82, the second hinged set 83 and turns to connecting lever 84, steering connecting lever 84 is square, including the level board being vertically fixedly connected
841 and vertical sleeve 842.Articulated linkage 81 is hinged close to one end of steering arm 7 and the side of steering arm 7, far from steering arm 7
One end and 82 one end of adjustable-length pull rod are hinged, and 82 other end of adjustable-length pull rod passes through the second hinged set 83 and steering connecting lever 84
841 one end of level board it is hinged, turn to 841 sets of vertical sleeve of 84 other end of connecting lever in the upright bar 91 of wheel shaft 9, the two hinge
It connects, and is located at 203 upside of sleeve of 20 rear portion one end of triangle wheel carrier.
As shown in Figure 1, being located at the upside of triangle wheel carrier 20, A-frame as the A-frame 30 of 10 extension body of rack
30 front ends are fixedly connected with 10 rear end of rack of large-scale rake by array bolt and nut group, and set square 301 is weldingly fixed on
On A-frame 30,30 rear end sides of A-frame each extend over out the tilting bar 302 for fixing safety sign plate, tilting bar
302 are located at 1 top of wheel, improve the safety that the present invention uses.
As depicted in figs. 1 and 2, when lead when draw tractor 100 turn right when, two front-wheels 110 of tractor 100 to the right,
The rear hanger bracket 120 at 100 rear portion of tractor tilts to right low left high therewith, with rear 101 both ends of hanger bracket hinged hitch bar 2 around
Hitch bar 2 and the hinged center A of 3 front end of joint tongue are rotated clockwise, and hitch bar 2 tilts down therewith, drive steering link 4 downward
Linear movement, then successively drive intermediate steering link 5 and adjust connecting rod 6 and move linearly downwards, adjust the first hinge of 6 lower end of connecting rod
Female connector 61 drives middle lateral pin 74 axis both clockwise of the steering arm 7 around 20 middle part of the upper end and triangle wheel carrier to rotate, and passes through steering
Two swivel pins 73 of 72 end of the vertical short side transverse direction of 7 lower end of arm respectively draw the articulated linkage 81 of the left and right sides, adjustable-length
The one of bar 82 and the second hinged set 83 pushes away drawing effect, so that the steering connecting lever 84 on pair of wheels 1 turns left in the same direction, then leads to
Crossing wheel shaft 9 drives pair of wheels 1 to complete servo-actuated rotation to the left in the same direction.At this point, as shown in Figure 1, two of tow tractor 100
To the right, to the left, the arrangement of four wheels camber, arc center is in tow tractor for the pair of wheels 1 of large-scale rake for front-wheel 110
100 and large-scale rake right side, so as to allow the large-scale rake of tow tractor 100 and the rear part around arc center
It turns right, completes large-scale rake follow-up steering.
In addition to the implementation, the present invention can also have other embodiments, all to use equivalent substitution or equivalent transformation shape
At technical solution, be all fallen within the protection domain of application claims.
Claims (8)
1. a kind of large size rake wheel follower steering device, including the pair of wheels being arranged under large-scale rake rear portion,
It is characterized in that: further including hitch bar, joint tongue, steering link, intermediate steering link, adjusts connecting rod, steering arm, steering mechanism and wheel
Axis, hitch bar both ends are hinged with the rear hanger bracket both ends of tow tractor respectively, longitudinal center's hinge of joint tongue front end and hitch bar
It connects, joint tongue rear end is connect with front end of rack, and rear end of rack is fixedly connected with triangle wheel carrier front end；Steering link front end and mounting
The hinged place B of bar deviates the hinged place A of hitch bar longitudinal center and joint tongue front end, and steering link rear end, which is successively turned to centre, to be connected
Bar and adjust connecting rod it is hinged, adjust rod rear end by the first hinged set and steering arm one end it is hinged, the steering arm other end with turn
Hinged in the middle part of to mechanism, steering mechanism both ends pass through wheel shaft and wheel articulation respectively；Triangle wheel carrier rear portion both ends respectively with turn
It is hinged to mechanism both ends.
2. large size rake wheel follower steering device as described in claim 1, it is characterised in that: the hitch bar and steering
Mounting bar joint is mounted in the hinged place B of connecting rod front end and in joint tongue front end and hitch bar longitudinal center hinged place A respectively
Bearing, joint tongue front end and steering link front end are cut with scissors by the preceding lateral pin and hitch bar that pass through corresponding hitch bar oscillating bearing respectively
It connects；Gag lever post is respectively and vertically fixed at the two sides of joint tongue front end Yu hitch bar longitudinal center hinged place A.
3. large size rake wheel follower steering device as described in claim 1, it is characterised in that: steering link oscillating bearing
It is fixedly connected with steering link rear end, steering link oscillating bearing injects in the connecting rod fork head of intermediate steering link front end, turns
To the rear cross between rod rear end and intermediate steering link front end by passing across connecting rod fork head and steering link oscillating bearing
Pin is hinged.
4. large size rake wheel follower steering device as described in claim 1, it is characterised in that: the steering arm is in horizontal
L shape, the horizontal L-shaped horizontal long side end and adjust rod rear end adjusting screw by the first hinged set it is hinged,
Horizontal L-shaped vertical short end both sides of head respectively with hinged in the middle part of steering mechanism, L-shaped horizontal long side and L-shaped vertical short
The point of intersection pin hole on side passes through hinged in the middle part of middle lateral pin and triangle wheel carrier.
5. large size rake wheel follower steering device as described in claim 1, it is characterised in that: the wheel shaft is L-shaped, packet
Include the upright bar being fixedly connected and horizon bar, one end of the horizon bar and wheel articulation, the sleeve at triangle wheel carrier rear portion both ends
It packs into upright bar respectively, the upside of the horizon bar other end is resisted against on the downside of the sleeve.
6. large size rake wheel follower steering device as described in claim 1, it is characterised in that: the steering mechanism includes
It is symmetricly set on articulated linkage, adjustable-length pull rod, the second hinged set and the steering connecting lever of steering arm two sides, the steering connecting lever
For square, including the level board being vertically fixedly connected and vertical sleeve.
7. large size rake wheel follower steering device as claimed in any one of claims 1 to 6, it is characterised in that: articulated linkage
Hinged, the one end of articulated linkage far from steering arm and adjustable-length pull rod one end close to one end of steering arm and the side of steering arm
Hingedly, the adjustable-length pull rod other end is hinged by the second hinged set and level board one end of steering connecting lever, and it is another to turn to connecting lever
The vertical sleeve at end covers in the upright bar of wheel shaft, and is located on the upside of the sleeve of triangle wheel carrier rear portion one end.
8. large size rake wheel follower steering device as described in claim 1, it is characterised in that: A-frame is located at triangle
The upside of shape wheel carrier, A-frame front end are fixedly connected with the rear end of rack of large-scale rake, and set square is fixed on A-frame
On, A-frame rear end sides each extend over out the tilting bar for fixing safety sign plate, and the tilting bar is located on wheel
Side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810985890.4A CN109017987A (en) | 2018-08-28 | 2018-08-28 | Large-scale rake wheel follower steering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810985890.4A CN109017987A (en) | 2018-08-28 | 2018-08-28 | Large-scale rake wheel follower steering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109017987A true CN109017987A (en) | 2018-12-18 |
Family
ID=64625506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810985890.4A Pending CN109017987A (en) | 2018-08-28 | 2018-08-28 | Large-scale rake wheel follower steering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109017987A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110447380A (en) * | 2019-09-23 | 2019-11-15 | 王洪钢 | One kind gathering formula bundling incomplete film-recovering machine |
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| CN201800769U (en) * | 2010-04-01 | 2011-04-20 | 上海景想广告传播有限公司 | Steering mechanism of advertising vehicle |
| CN102409593A (en) * | 2011-11-04 | 2012-04-11 | 傅燕桥 | Towed asphalt distributor |
| CN103043099A (en) * | 2013-01-30 | 2013-04-17 | 安徽合力股份有限公司 | Bidirectional four-axis type steering platform trailer |
| CN103640620A (en) * | 2013-11-27 | 2014-03-19 | 合肥海源机械有限公司 | Front steering system for tractor for airport |
| CN104773204A (en) * | 2015-04-23 | 2015-07-15 | 北京福田戴姆勒汽车有限公司 | Trailer and active steering device thereof |
| DE102014013888A1 (en) * | 2014-09-18 | 2016-03-24 | Alois Pöttinger Maschinenfabrik Ges.m.b.H. | Agricultural implement |
| EP3090922A1 (en) * | 2015-04-14 | 2016-11-09 | HORSCH LEEB Application Systems GmbH | Method for guiding an agricultural trailer and agricultural trailer combination |
| DE102015014292A1 (en) * | 2015-11-06 | 2017-05-11 | Stapel Gmbh | Device for tillage |
| CN106995007A (en) * | 2016-01-26 | 2017-08-01 | 中国农业机械化科学研究院 | A kind of spraying machine is with rut steering mechanism |
| CN208774875U (en) * | 2018-08-28 | 2019-04-23 | 江苏沃得高新农业装备有限公司 | Large-scale rake wheel follower steering device |
-
2018
- 2018-08-28 CN CN201810985890.4A patent/CN109017987A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2486901A1 (en) * | 2004-11-25 | 2006-05-25 | Herve Cantin | Steerable trailer assembly |
| US20070145714A1 (en) * | 2005-11-30 | 2007-06-28 | Friggstad Terrance A | Steering connection assembly between multiple towed implements |
| CN201800769U (en) * | 2010-04-01 | 2011-04-20 | 上海景想广告传播有限公司 | Steering mechanism of advertising vehicle |
| CN102409593A (en) * | 2011-11-04 | 2012-04-11 | 傅燕桥 | Towed asphalt distributor |
| CN103043099A (en) * | 2013-01-30 | 2013-04-17 | 安徽合力股份有限公司 | Bidirectional four-axis type steering platform trailer |
| CN103640620A (en) * | 2013-11-27 | 2014-03-19 | 合肥海源机械有限公司 | Front steering system for tractor for airport |
| DE102014013888A1 (en) * | 2014-09-18 | 2016-03-24 | Alois Pöttinger Maschinenfabrik Ges.m.b.H. | Agricultural implement |
| EP3090922A1 (en) * | 2015-04-14 | 2016-11-09 | HORSCH LEEB Application Systems GmbH | Method for guiding an agricultural trailer and agricultural trailer combination |
| CN104773204A (en) * | 2015-04-23 | 2015-07-15 | 北京福田戴姆勒汽车有限公司 | Trailer and active steering device thereof |
| DE102015014292A1 (en) * | 2015-11-06 | 2017-05-11 | Stapel Gmbh | Device for tillage |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110447380A (en) * | 2019-09-23 | 2019-11-15 | 王洪钢 | One kind gathering formula bundling incomplete film-recovering machine |
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