CN2483944Y - Mini-size combine matched with small walking tractor - Google Patents
Mini-size combine matched with small walking tractor Download PDFInfo
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- CN2483944Y CN2483944Y CN 00268958 CN00268958U CN2483944Y CN 2483944 Y CN2483944 Y CN 2483944Y CN 00268958 CN00268958 CN 00268958 CN 00268958 U CN00268958 U CN 00268958U CN 2483944 Y CN2483944 Y CN 2483944Y
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- combine
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Abstract
A micro-combine harvester of the small-sized walking tractor relates to the agricultural machinery, including a connection part (20, 23, 25, 51), a back part frame body (17), a back part walking mechanism (68), a working power transmission mechanism and an independent clutch (44, 45, 47, 52, 64), a fling jan mechanism (8, 22, 58), a negative pressure and centrifugal flowing cleaning and choosing structure (54, 48, 34, 53, 6, 7, 9), a fixation sealing feeding conductive plate (12, 71, 73), a manual hydraulic lift (16, 26) and so on. The utility model makes the matching convenient and easy with special case and novel thought, and suits for the machinery harvest at the mountain area, hilly region or plot.
Description
The utility model belongs to the crops harvest machinery, relates generally to the special construction into the supporting use miniature combine harvester of small hand tractor.
Known baby combine is the Work machine that has own characteristic in the results, has filled up the corresponding vacancy of harvest operation series of machine.But in the face of the actual conditions in 1 year one season of the north, existing baby combine is because the cost height, needs the several years could cost-recovering, and is still difficult widely-used.The supporting combine of finding small hand tractor, how because of the structure heaviness, through performance is poor, cleans effect bad (have do not have cleaning plant), the combining operation in incompatibility Wheat in Northern producing region.Face the present situation that rural area, knob, northern China mountain area has a large amount of small hand tractors, for the supporting miniature combine harvester of small hand tractor is very necessary.
The purpose of this utility model is to propose to be the organization plan of the supporting miniature combine harvester of small hand tractor.
The utility model purpose is achieved in that to the supporting miniature combine harvester of small hand tractor and comprises: frame; Link with frame, contain the ceding of Taiwan, conveyer, threshing, cleaning plant, and the drum threshing formula combining Working mechanism that through transfer member these devices is coupled to each other according to the crop harvesting flow chart; Link with frame and to be the supporting transmission of this Working mechanism, manipulation, governor motion; The parts of each part mentioned above are connected and fixed.Wherein, the contained threshing cabinet of described Working mechanism intermediate roll threshing part bottom be provided with downwards stretch out, can with the support for the treatment of that the contained gearbox of supporting small hand tractor is fixedly connected; Other establish front end can join traction frame fixing hole on this gearbox, rear end can with treat supporting small hand tractor frame links, this tractor can be fixedly laid at the middle part engine, vertically be short vertically long flat class " U " the font rear portion support body of vertical direction along complete machine; Can will place this engine power output of rear portion support body respectively, and be fixed in the Working mechanism on the contained gearbox of supporting small hand tractor through described support and treat the driving-belt structure that the contained gearbox of supporting small hand tractor power intake separately links; The afterbody running gear that links with class flat " U " font rear portion support body.Like this, the support that stretches out downwards can with desire the tennis partner and hold up the gear box of tractor existing structure to link, the support component that links as the power chassis of combine operation mechanism part and supporting back combine; Flat U-shaped rear portion support body can be used as the new support fixed structure of combining mechanomotive force; The tail directive wheel as guide frame and and the rear portion support body participate in complete machine support after supporting.That is,, in assurance self operation function, increased the connection supporting construction again as the combine operation part; The dependency structure of introducing this programme as the power chassis hand tractor partly of combine has also had new assembly type, can adapt to and the supporting needs of described combining Working mechanism.As seen this programme is operation and the supporting feasible configurations basis that the connection assembling is provided, thereby has realized the purpose for the existing supporting miniature combine harvester of corresponding small hand tractor.
Also be provided with in the driving-belt structure described in the utility model can with four supporting groove belt pulleys of described engine power output, link with described frame, the adjusted mechanism of controlled driving belt rate of tension.Like this, the more former small hand tractor engine power output of four groove belt pulleys two races that belt pulley increased can be used to transmit the power that provides for supporting combine; Adjusted mechanism can realize the foundation and the termination of this transmission by the rate of tension of controlling this driving belt, to reach the independent control to the Working mechanism transmission; And other two races still can be used as the power-transmitting part of tractor, with the drive mechanism of the former tractor of basic reservation.
Drum threshing Working mechanism described in the utility model connect carry with the threshing part treat threshing crop passage, be positioned at the axial end section of threshing cylinder; At the air inlet of establishing under the recessed sieve of this distolateral wall of threshing cabinet inside and outside the conducting casing; Threshing cylinder axially holds section to be provided with ventilating fan in addition, and the inside and outside straw outlet of UNICOM's casing is tangentially established in the corresponding air-out of threshing cabinet position.Like this, will produce with air inlet during operation in the threshing case, wait to take off the crop inlet is common import, is outlet with the straw outlet, can carry out the case interior orientation air-flow that wind-force is cleaned to contained thing in the case.
Working mechanism described in the utility model also contains to link, have to throw with threshing cabinet bottom residue on sieve output raises wheel assembly; with link with this assembly output, can derive the throwing machine structure that tube is raised in the throwing of being raised thing by throwing, be connected to the centrifugal flow formula dressing mechanism of throwing machine structure output.Like this, together with the structure of above-mentioned generation windstream, make the parts major part of cleaning that generally is located under the threshing bolter be moved to relevant position on the sieve; Clean operation and not only therefore can finish preferably, also simultaneously for the total height that reduces the harvesting machine body provides possibility, the structure configuration of favourable integrated equipment; Can also reduce feeding working resistance, the assistance of threshing operations in addition and carry, avoid being taken off in the threshing operations obstruction and the unhelpful delay of crop.
Throwing machine structure described in the utility model contains the throwing that sidewall is provided with air admission hole and raises the wheel housing, and can be to throw to raise with moving air flow provides inlet channel fully, improves to throw and raises efficient.
The inlet of drum threshing Working mechanism described in the utility model be provided with near the conveyer throughput direction, again with separate the plane resting guide that recessed sieve has big excessively fillet to link, itself and wait to feed between crop conveyer base plate, also have with the conveyer axis that is close to the threshing feeding mouth be the arc of home position be slidingly matched adjutant the two link.Like this, can set up the feeding that reduces the unhelpful pulverizing of straw as possible and sealing carry with threshing unit between connects the condition in gap, also adapt to the needs that ceding of Taiwan operation height is regulated simultaneously, the possibility of eliminating generation threshing extracting dead band in this place feeding also is provided.
Header described in the utility model is double-deck shunting, to reduce the live load of operation subsequent handling when low stubble gathers in.
The following cutter of double-deck shunting header described in the utility model is removable the connection with frame, to satisfy different instructions for uses.
Also contain hydraulic hand-pump in the transmission described in the utility model, hydraulic transmission part and connect the two fluid pressure line.To solve corresponding transmission needs.
The utility model with the selection of rear portion support body, afterbody ground-engaging element, special support, Working mechanism input position and mode, independently the operation transmission clutch, newly be located at that negative-pressure air-flow in the cylinder is cleaned structure, throwing machine structure, centrifugally cleaned structure, sealing is connected with threshing feeding connection, double-deck shunting header, the hand-hydraulic transmission of fixing feeding guide plate gently and improves structure accordingly, can be easy be embodied as the supporting miniature combine harvester of small hand tractor, enlarged this minitype motivation and combining mode range of application separately.Simultaneously, manufacture also extremely easyly, be easy to promote.The utility model conceptual design is original, and is novel ingenious, for the mechanized harvest that adapts in knob, mountain area or the cell assignments provides appointed condition.
Accompanying drawing has provided the signal of the utility model example structure.
Fig. 1 is the supporting side view of the state of the supporting miniature combine harvester of small hand tractor;
The vertical view of Fig. 2 Fig. 1;
It is the threshing and cleaning cutaway view that A-A of Fig. 3 Fig. 1 analyses and observe;
The B of Fig. 4 Fig. 2 is the signal of tensioning clutch configuration to view;
The D of Fig. 5 Fig. 3 promptly throws to partial sectional view and raises the air flow cleaning structural representation;
The C of Fig. 6 Fig. 2-C cutaway view promptly feeds threshing and cabinet fixed plate part cutaway view.
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
:1.2.3.4.5.6.7.8.9.10.11.12.13.14.15.16.17.“U”18.19.20.21.22.23.24.25.26.27.28.29.30.31.32.33.34.35.36.37.38.39.40.41.42.43.44.4546.4748.49.50.51.52.53.54.55.56.57.58.59.60.61.62.63.64.68.69.70.71.72.73.
First embodiment is the miniature combine harvester for the 7kw walking tractor matching, with the overall dimensions behind the tractor be 3320 * 1300 * 1270 millimeters, 623 kilograms of integrated equipment quality, 690 kilograms of integrated equipment service property (quality)s, 350 kilograms of this supporting part-structure quality.About 0.1 hectare/hour of theoretical production efficiency.As Fig. 1-6.
This routine combine partly comprises the ceding of Taiwan, conveying, threshing, cleaning plant, and its concrete structure is consistent with known combine.Be that 13 times cutters 27 of the ceding of Taiwan 14 straw shift wheels, 15 conveyers are all conventional structure.Make with axis on the conveyer conveyer negative upper end is the curved section 71 of cambered surface of home position, and resting guide cambered surface section 12 forms with it with same shape can be around axle sliding connection pair.Resting guide back segment 73 is the plane, in threshing cylinder direction of advance left end section, and separates recessed sieve 59 vertical welding and links with big excessively circular arc.Position under the recessed sieve of this side sidewall of threshing cabinet drum shaft end is provided with air inlet 48.Fix four air blades 54 in the inboard welding of threshing cylinder 56 right-hand members, straw outlet 34 is established in threshing cabinet 72 corresponding tangential air-out positions.The thresher lower box part is provided with screw conveyor shaft 60, stretches out end section dress outside the casing of right side at screw conveyor shaft and throws and raise wheel 58, and hub 22 is raised in the throwing that link with casing, sidewall is shaped on air inlet 70, raises the device output with throwing and raises direction by throwing and link to throw and raise tube 8.It is terminal to raise tube in throwing, connection tangentially links, is fixed in the threshing case with it, has the centrifugal scourclean 6 of conical lower portion outlet with its cylinder, the fixing Shopping bag support 5 that can articulate dress seed bag around its outlet at bottom is equipped with pocket and connects dish 19 articulating below the bag support body 17 corresponding positions, flat class " U " font rear portion.Drum shaft 57 right-hand members stretch out outside the casing, and suction fan impeller 53 is housed, and the casing corresponding position is suction fan shell 9 fixedly, and fans entrance links through the assorted surplus outlet of air intake duct 7 and scourclean 6 central upper portion lightweights.It more than is the primary structure of these routine work operations parts.
This example is with designed miniature combine harvester part, carries out supporting assembling with existing hand tractor and becomes complete machine.During supporting assembling, the small hand tractor traction frame is pulled down, install custom-designed flat class " U " font rear portion support body 17, the frame rear end links with the handrail handle that is positioned at chassis control frame 69 back segments respectively with two link rods, its rear end also is equipped with and is used adjustable for height afterbody running gear 68, with the supported at three point of hand tractor two driving wheel cost machines.Again small hand tractor diesel engine 18 is pulled down, be installed on the support body of flat class " U " font rear portion by the requirement that is connected and fixed with former diesel oil frame.Diesel oil frame on the tractor is pulled down, utilized four diesel oil frame fixing holes 24 on the gear box of tractor 21, the middle and lower part, forebay 25 both sides of square frame shape is fixed.Combine threshing cabinet 72 lower left side with welding link, straight down,, cabinet fixed head 51 that lower end both sides respectively have bifurcated stretch out consistent with the forebay width along the casing axis; with the cabinet fixed head under the upper end, forebay both sides and the tail wheel frame front upper part of external part relevant position; be shaped on the connection holes 23,20 of the cabinet fixed head 51 that is connected and fixed, miniature combine harvester be fixed on the gearbox 21 by bolt 23,20.The ceding of Taiwan, conveyer assembly 14,13 are installed on the threshing cabinet relevant position, load onto down cutter 27.Mmi machine frame bottom is provided with the hinged pair that links with hoist cylinder 26 cylinder bodies, is provided with the hinged pair that links with the oil cylinder plunger in the conveyer bottom, and oil cylinder 26 assembling backs link by the road with the hand pump 16 that is located at tail wheel frame rear end.Pull down the flywheel belt pulley of diesel engine, change four special-purpose groove belt pulleys 47, load onto tractor driving belt 46 and main drive belt 44, following cutter belt 28, straw shift wheel belt 30 and driving chain 40, ceding of Taiwan driving chain 29.More than assemble the description of main process for integrated equipment.
The transmission of miniature combine harvester is achieved in that four groove belt pulleys, 47 inboard two grooves on the diesel engine flywheel are to be used for driving the tractor walking, and the outside two grooves are to be used for driving miniature combine harvester.During work, outside main drive belt 44 carries out the transmission combination and separates by pulling, relieving tractor clutch control crank 2,45 pairs of miniature combine harvesters of manipulation tensioning clutch wheel.When pulling clutch control handle 2, make tensioning clutch wheel 45 push down main drive belt slack list between belt pulley 42 and the carrier wheel 64, make main drive belt by the former state of entrusting bent plate 52 intrados, being in separation that is attached to, become the state of holding four groove belt pulleys tightly, being in combination, drive the belt pulley 42 on the miniature combine harvester cylinder shaft 57, drive threshing cylinder 56 and coaxial suction fan impeller 53 rotations.There is gear 43 belt pulley inboard on cylinder shaft, there is minor sprocket 41 in the outside, gear is crossed wheel gear 49 and helical axis gear 50 by two and is driven screw conveyor shafts 60 and throwing and raise wheel 58 and carry out work, and the minor sprocket 41 in the outside drives by driving chain 40 hinge wheels 38 that axle 37 rotates on the conveyers.Axle has a single groove belt pulley 39 on the conveyer, by cutter 27 work under cutter belt 28 drives down.Two transportation sprockets 62 are arranged in conveyer inside, two transportation sprockets 62 drive chain harrow 61 and 33 rotations of conveyer lower shaft, and feeding screw feeder 32, ceding of Taiwan cutter 31, straw shift wheel 15 that the conveyer lower shaft drives in the cedings of Taiwan by ceding of Taiwan driving chain 29, straw shift wheel belt 30 respectively again rotate.Promptly finish the extremely transmission of all Working mechanisms of power by supporting hand tractor.
The course of work of miniature combine harvester is: when miniature combine harvester carries out harvest operation in the field with operating rate, straw shift wheel is at first pulled over crop backward and is guided cutter into, after cutter is cut off crop from the fringe bottom simultaneously, continuation is pushed to ceding of Taiwan feeding screw feeder by straw shift wheel, and the crop straw of cutting off fringe is cut by following cutter and is sprinkling upon the field.The feeding screw feeder focuses on ceding of Taiwan middle part feeding mouth with the crop of cutting off, and by feeding screw feeder expansion teeth 36 crop is dialled to conveyer along ceding of Taiwan tangential direction, and sends into axial threshing cylinder by the chain harrow of conveyer.The base closed at this place when the pair of being made up of two cambered surfaces at cylinder feeding mouth place 12,71 that is slidingly matched can guarantee to regulate cutting-height, resting guide back segment 73 links with big excessively fillet fixed vertical with separating recessed sieve, the unhelpful pulverizing in the time of can reducing straw and feed at this place.Because when the threshing cylinder high speed rotating is taken off the seed on the crop; air blade 54 fixing on the threshing cylinder is gone out the air propeller of threshing cabinet inside; produce negative pressure; additional air flow can only enter from two air inlets 48 of the relative position of driver left surface with the threshing cabinet of conveyer 13 formed gas channels; meanwhile under the cylinder effect of rotatablely moving, make and taken off crop and pasting the garden tube intrados that separates recessed sieve 59 and cover 35 compositions straw outlet 34 is for the helical movement to the right.Supplemental air flow make through the thing convergence suspended state to be processed of part, also produce the beneficial effect that the conveyer crop is sucked thresher simultaneously.Long straw and a part of lightweight taken off behind the seed are assorted surplus under the air-flow effect, inhale to the cylinder right-hand member, by the air blade on the cylinder from straw outlet 34 along grass guard the 11 threshing cabinets of dishing out, fall to the ground.In threshing course, impacted the part seed that splashes, in cabinet, be rotated to when separating recessed sieve 59, fall from sieve aperture by the seed blocking plate 55 of cover right-hand member retaining by the threshing cylinder spike-tooth.Lightweights such as the clever shell of seed and part, broken straw rod are assorted surplus under the effect of threshing cylinder centrifugal force and gravity, fall by separating recessed sieve 59 holes simultaneously, fall on screw conveyor shaft 60.Pushed to throw by screw conveyor shaft and raise device 22, raise wheel 58 by throwing again and raise tube 8 through throwing and tangentially be thrown into centrifugal scourclean 6 at a high speed, throw this moment and raise wheel shell side wall air inlet and can be to throw to raise inlet channel fully is provided with moving air flow.Because the assorted surplus quality of the relative lightweight of seed is bigger, paste the barrel rotation and glide, drop out by mouthful place that puts out cereal, fall in pocket.The centrifugal force that lightweight obtains when mixing surplus the rotation is little, relatively concentrates on the central part of scourclean, and the high velocity air that is produced by suction fan 9 blows to underground through air intake duct 7 inhale blower fans by the assorted surplus outlet 10 of lightweight.At the fixing packing bag of the Shopping bag support 5 of scourclean outlet, the bottom has pocket to connect dish 19, and makes it be in umbrella-waiting state.Packing bag articulates between outer ring and the scourclean and leaves certain clearance, is the assorted remaining air-flow admission passage that has of scourclean separation of lighter.Ceding of Taiwan cutter cuts is cut the height of stubble, drives taiwan cut off and landing oil cylinder 26 by hand oil pump 16 and realizes.Following cutter cuts the height of stubble, by cutter is adjusted handle 1 down, cutter backguy 3 realizes down.More than be whole results processes of this example.
Second embodiment is the results that are used for need not reclaiming straw crop, only needs this moment to descend cutter and transmission thereof to pull down, or this part is not installed.All the other structures are consistent with use and last example.
Claims (10)
1. comprise for the supporting miniature combine harvester of small hand tractor: frame; Link with frame, device such as contain the ceding of Taiwan, conveyer, threshing, clean, and the drum threshing formula combining Working mechanism that through transfer member these devices is coupled to each other according to the crop harvesting flow chart, link, be supporting transmission, manipulation, the governor motion of this Working mechanism, the parts of the each part mentioned above that is connected and fixed with frame; It is characterized in that: the contained threshing cabinet of described Working mechanism intermediate roll threshing part bottom be provided with downwards stretch out, can with treat the support that the contained gearbox of supporting small hand tractor is fixedly connected (51,25); Other establish front end can join traction frame fixing hole on this gearbox, rear end can with treat supporting small hand tractor frame (69) links, this tractor can be fixedly laid at the middle part engine, vertically be short vertically long flat class " U " the font rear portion support body (17) of vertical direction along complete machine; Can this engine power output of described rear portion support body will be placed respectively, with be loaded on the Working mechanism on the contained gearbox of supporting small hand tractor through described support and treat the driving-belt structure (44,45,46,47,52,64) that the contained gearbox of supporting small hand tractor power intake separately links, the afterbody running gear (68) that links with the rear portion support body.
2. combine according to claim 1, it is characterized in that: also be provided with in the described driving-belt structure can with four supporting groove belt pulleys (47) of described engine power output, link with described frame, the adjusted mechanism (44,45,52,64) of controlled driving-belt rate of tension.
3. combine as claimed in claim 1 or 2 is characterized in that: described drum threshing Working mechanism connect carry with the threshing part treat threshing crop passage, be positioned at the axial end section of threshing cylinder; At the air inlet of establishing under the recessed sieve of this distolateral wall of threshing cabinet inside and outside the conducting casing (48); Threshing cylinder axially holds section to be provided with ventilating fan (54) in addition, and the inside and outside straw outlet (34) of UNICOM's casing is tangentially established in the corresponding air-out of threshing cabinet position.
4. combine as claimed in claim 1 or 2; it is characterized in that: described Working mechanism also contains to link, have to throw with threshing cabinet bottom residue on sieve output raises wheel assembly; with link with this assembly output, can derive the throwing machine structure (8,22,58) that tube is raised in the throwing of being raised thing by throwing, be connected to the centrifugal flow formula dressing mechanism (6,7,9) of throwing machine structure output.
5. as combine as described in the claim 3; it is characterized in that: described Working mechanism also contains to link, have to throw with threshing cabinet bottom residue on sieve output raises wheel assembly; with link with this assembly output, can derive the throwing machine structure (8,22,58) that tube is raised in the throwing of being raised thing by throwing, be connected to the centrifugal flow formula dressing mechanism (6,7,9) of throwing machine structure output.
6. as combine as described in the claim 4, it is characterized in that: described throwing machine structure contains the throwing that sidewall is provided with air admission hole (70) and raises wheel housing (22).
7. combine as claimed in claim 1 or 2 is characterized in that: the inlet of described drum threshing Working mechanism be provided with near the conveyer throughput direction, again with separate the plane resting guide (73) that recessed sieve has big excessively fillet to link; Itself and wait to feed between crop conveyer base plate, also having with the conveyer axis that is close to the threshing feeding mouth is that the arc of the home position pair (12,71) that is slidingly matched links the two.
8. as combine as described in the claim 3, it is characterized in that: the inlet of described drum threshing Working mechanism be provided with near the conveyer throughput direction, again with separate the plane resting guide (73) that recessed sieve has big excessively fillet to link; Itself and wait to feed between crop conveyer base plate, also having with the conveyer axis that is close to the threshing feeding mouth is that the arc of the home position pair (12,71) that is slidingly matched links the two.
9. combine as claimed in claim 1 or 2, it is characterized in that: described header is double-deck shunting, its down cutter be removable the connection with frame.
10. combine as claimed in claim 1 or 2 is characterized in that: also contain hydraulic hand-pump in the described transmission, hydraulic transmission part and connect the two fluid pressure line (16,26).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 00268958 CN2483944Y (en) | 2000-12-29 | 2000-12-29 | Mini-size combine matched with small walking tractor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 00268958 CN2483944Y (en) | 2000-12-29 | 2000-12-29 | Mini-size combine matched with small walking tractor |
Publications (1)
Publication Number | Publication Date |
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CN2483944Y true CN2483944Y (en) | 2002-04-03 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN 00268958 Expired - Fee Related CN2483944Y (en) | 2000-12-29 | 2000-12-29 | Mini-size combine matched with small walking tractor |
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CN (1) | CN2483944Y (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103781346A (en) * | 2011-07-20 | 2014-05-07 | 洋马株式会社 | Combine |
CN104129296A (en) * | 2014-08-21 | 2014-11-05 | 中国农业大学 | Hydraulic hand self-propelled type cutting and flattening machine |
CN108725120A (en) * | 2018-06-04 | 2018-11-02 | 湖南科洋农机制造有限公司 | A kind of chassis height self-checking device of agricultural machinery |
WO2019242291A1 (en) * | 2018-06-22 | 2019-12-26 | 李仕清 | Feeding-free harvester |
-
2000
- 2000-12-29 CN CN 00268958 patent/CN2483944Y/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103781346A (en) * | 2011-07-20 | 2014-05-07 | 洋马株式会社 | Combine |
CN103781346B (en) * | 2011-07-20 | 2016-05-25 | 洋马株式会社 | United reaper |
CN104129296A (en) * | 2014-08-21 | 2014-11-05 | 中国农业大学 | Hydraulic hand self-propelled type cutting and flattening machine |
CN104129296B (en) * | 2014-08-21 | 2016-08-24 | 中国农业大学 | Hydraulic pressure walking self-propelled mowing-flattening machine |
CN108725120A (en) * | 2018-06-04 | 2018-11-02 | 湖南科洋农机制造有限公司 | A kind of chassis height self-checking device of agricultural machinery |
WO2019242291A1 (en) * | 2018-06-22 | 2019-12-26 | 李仕清 | Feeding-free harvester |
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CF01 | Termination of patent right due to non-payment of annual fee |