CN115280912A - Agricultural work machine with rear resistance drive system - Google Patents
Agricultural work machine with rear resistance drive system Download PDFInfo
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- CN115280912A CN115280912A CN202211024394.5A CN202211024394A CN115280912A CN 115280912 A CN115280912 A CN 115280912A CN 202211024394 A CN202211024394 A CN 202211024394A CN 115280912 A CN115280912 A CN 115280912A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 128
- 230000008859 change Effects 0.000 claims abstract description 60
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 208000032370 Secondary transmission Diseases 0.000 claims 1
- 230000001681 protective effect Effects 0.000 claims 1
- 238000009313 farming Methods 0.000 abstract description 8
- 230000009193 crawling Effects 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 2
- 238000003971 tillage Methods 0.000 description 14
- 239000002689 soil Substances 0.000 description 6
- 230000007935 neutral effect Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241000283690 Bos taurus Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002420 orchard Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
- A01B33/08—Tools; Details, e.g. adaptations of transmissions or gearings
- A01B33/082—Transmissions; Gearings; Power distribution
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
- A01B33/08—Tools; Details, e.g. adaptations of transmissions or gearings
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Abstract
The invention relates to the technical field of agricultural mini-tillers, and discloses an agricultural operation machine with a rear resistance driving system, which comprises: the main machine body comprises a first machine shell, a main speed changing system arranged in the first machine shell and an operation cutter in transmission connection with the main speed changing system; the rear resistance driving system comprises an auxiliary speed change system arranged in the second machine shell and a rear walking assembly in transmission connection with the auxiliary speed change system, and the rear walking assembly is hinged with the first machine shell; the first machine shell is fixedly connected with the second machine shell, and the output speed of the rear walking assembly is smaller than that of the operation cutter. The invention firstly carries out primary speed change through the main speed change system, then carries out primary speed change through the auxiliary speed change system, outputs the speed to the rear resistance driving system, the rear walking system generates resistance during farming, the rear walking system is equivalent to the action of the resistance rod, and generates crawling force when the micro-farming machine is blocked from walking, thereby ensuring continuous work and labor saving.
Description
Technical Field
The invention relates to the technical field of agricultural mini-tillers, in particular to an agricultural operation machine with a rear resistance driving system.
Background
The agricultural operation machine, also called mini-tiller or field management machine (hereinafter referred to as mini-tiller), uses small diesel engine or gasoline engine as power, and has the characteristics of light weight, small volume, simple structure and the like. The micro-tillage machine is widely applicable to dry lands, paddy fields, orchards and the like in plains, mountainous areas and hills. The micro-cultivator can be used for pumping water, generating electricity, spraying medicine, cultivating land or earthing up and the like by being matched with corresponding machines, the micro-cultivator can be freely operated in the field, the use and the storage of a user are convenient, the trouble that large agricultural machinery cannot enter a mountain field is eliminated, and the micro-cultivator is the best choice for replacing the traditional manual cultivation or cattle cultivation for vast farmers and consumers.
The existing mini-tillers generally have three types:
self-propelled: only the working shaft is driven by power, and no walking shaft or wheel (or walking shaft wheel is not driven by power) works by the cutter, and meanwhile, a forward driving force is generated for the micro-cultivator to work and move. The mini-tiller has the advantages that all power is used on the working cutter, power loss is small, power requirements are few, the mini-tiller is flexible to transfer, the mini-tiller is widely applicable to being convenient for hilly and mountainous areas, and the holding capacity of the existing mini-tiller is over 80%. The resistance rod is often inserted into soil in actual cultivation, so that the speed of the mini-tiller is reduced, the cutter rotates more at a certain place of the soil, operation difficulty is increased, and manual labor intensity is increased. In addition, the working depth and the advancing speed are manually controlled, the labor intensity is high, the working efficiency is low, the work is discontinuous, the uneven tillage depth caused by the uneven advancing speed is large in difference, a groove can be formed at the position where the resistance rod passes after tillage, and the ground is uneven after tillage.
Front rotary tillage: the driving shaft close to the front end of the mini-tiller is a cutter, and the rear end of the mini-tiller is provided with a traveling wheel. The advantages are stable operation, and the disadvantages are that the heavy mini-tiller is heavy and inconvenient to transfer in the field and is not deep to plough, and the mini-tiller cannot adapt to the cultivation of dry land with harder geology and is only limited to paddy fields and particularly loose land.
The back rotary tillage type: the walking wheel is installed near the front end of the mini-tiller, the rear end cutter of the mini-tiller is similar to the farming mode of a tractor, but the walking wheel is not enough in crawling force due to the light weight of the mini-tiller, the walking is difficult, the front wheel can be upwarped and lifted off due to the rotation stress of the cutter, and the mini-tiller flies out along with the speed linear velocity direction of the cutter, so that great potential safety hazards are caused. Meanwhile, the machine body is heavy and is inconvenient to transfer in the field. It cannot adapt to hilly and mountainous regions.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides an agricultural operation machine with a rear resistance driving system, which comprises a main machine body, wherein the main machine body transmits power to an operation cutter, and the operation cutter has a certain speed to cultivate land, cultivate soil or ditch.
In order to achieve the above object, the present invention provides an agricultural work machine having a rear drag drive system, comprising:
the main machine body comprises a first machine shell, a main speed changing system arranged in the first machine shell and an operation cutter in transmission connection with the main speed changing system; and
the rear resistance driving system comprises an auxiliary speed change system arranged in the second machine shell and a rear walking assembly in transmission connection with the auxiliary speed change system, and the rear walking assembly is hinged with the first machine shell;
the first machine shell is fixedly connected with the second machine shell, and the speed output by the rear walking assembly is smaller than the speed output by the operation cutter.
The agricultural operation machine with the rear resistance driving system can be a mini-tiller, a ditcher or a field management machine.
Furthermore, the auxiliary transmission system comprises a power input assembly, a first transmission shaft, a second transmission shaft, a third transmission shaft and a power output assembly, wherein the power input assembly is rotatably installed in the second casing, the power input assembly is in transmission connection with the output end of the main transmission system, the first transmission shaft is rotatably installed in the second casing, a first gear and a gear shifting gear set are fixed on the first transmission shaft, the first gear is in transmission connection with the power input assembly, the second transmission shaft is arranged in parallel with the first transmission shaft, the second transmission shaft is coaxially provided with the gear shifting gear set, the gear shifting gear set can be meshed with the gear shifting gear set, the second transmission shaft is also fixedly provided with a second gear, the second gear is meshed with a third gear installed on the third transmission shaft, the third transmission shaft is fixedly provided with a fourth gear, the fourth gear is in transmission fit with the power output assembly, and the power output assembly is used for outputting power from the main transmission system to the rear traveling assembly;
wherein, the handle bar is installed to the second casing, the shifting block is installed to the tip that the handle bar stretched into in the second casing, and accessible shifting block drives behind the operation handle bar change gear group removes along second transmission shaft axis direction to make change gear group can with the different gear engagement of gear shifting gear group.
Further, the power input assembly comprises an input shaft, the input shaft is rotatably connected with the second shell, and the end of the input shaft, which is positioned in the second shell, is meshed with the first gear.
Furthermore, the inner wall of the speed change gear set is provided with a plurality of gear grooves distributed along the length direction of the second transmission shaft, a limiting clamp is arranged in the second transmission shaft, the limiting clamp is perpendicular to the axis direction of the second transmission shaft, two ends of the limiting clamp extend out of the second transmission shaft and can be clamped into the gear grooves, the speed change gear set comprises a first speed change gear, a second speed change gear and a third speed change gear, and the first speed change gear, the second speed change gear and the third speed change gear are of an integrally formed structure which is easier to machine and form;
when the limit is clamped into one of the gear grooves, the speed change gear set and the gear shifting gear set are in a non-meshed state.
Furthermore, the hand lever is arranged at the upper part of the second machine shell and is positioned at one end close to the rear walking component.
Furthermore, the rear walking assembly comprises a resistance wheel, a walking box and a resistance transmission assembly in transmission connection with a power output assembly of the auxiliary transmission system;
the walking box comprises a third shell, a bevel gear arranged in the third shell and a bevel gear meshed with the bevel gear; the bevel gear is installed inside the third casing through a resistance input shaft, the end part of the resistance input shaft extending out of the third casing is a power input end, the power input end is in transmission connection with the resistance transmission assembly, the bevel gear is installed inside the third casing through a resistance output shaft, and the end part of the resistance output shaft extends out of the third casing and is provided with the resistance wheel.
Furthermore, the resistance transmission assembly comprises a first connecting shaft and universal joint shaft couplers detachably connected to two ends of the first connecting shaft, and the universal joint shaft couplers are in transmission connection with the power output assembly of the auxiliary speed change system and in transmission connection with the resistance input shaft respectively.
Further, the resistance transmission assembly comprises a second connecting shaft, a protection pipe and universal joint coupling devices connected to two ends of the second connecting shaft, and the protection pipe is sleeved on the outer portion of the second connecting shaft.
Further, the protection tube is fixed with a pedal, and a seat or a cushion with changeable height is arranged outside the third machine shell.
Further, the resistance output shaft can also be provided with a road wheel.
Through the technical scheme, the invention has the following beneficial effects:
1. the invention provides an agricultural operation machine with a rear resistance driving system, wherein a main machine body is connected with a power source, such as a gasoline engine or a diesel engine, the main machine body comprises a main speed changing system, an operation cutter in transmission connection with the main speed changing system and a rear resistance driving system. The auxiliary speed change system is provided with a plurality of speed gears so as to meet the requirements of different soil qualities and different farming depths and farming modes;
2. under the optimal condition, the walking box is hinged with the second shell, so that the walking box can swing left and right relative to the second shell, operators can conveniently operate the handrails to turn and the phenomenon of missing cultivation during cultivation is avoided;
3. under the optimal conditions, the speed change gear set and the gear shift gear set of the agricultural operation machine with the rear resistance driving system are in a non-engagement state, namely in a neutral state, and the resistance wheel does not need to be lifted off the ground and rotates with the main machine body when the mini-tiller transfers and backs up, so that the mini-tiller is more convenient, safer and more labor-saving in operation compared with the traditional mini-tiller (the traditional mini-tiller needs to be lifted off the ground by the resistance rod).
Drawings
FIG. 1 is a schematic perspective view of a part of a standing mini-tiller according to the present invention;
FIG. 2 is a rear view of the second housing;
FIG. 3 isbase:Sub>A partial cross-sectional view A-A of FIG. 2;
FIG. 4 is an enlarged view at A in FIG. 2;
FIG. 5 is a partial cross-sectional view B-B of FIG. 2;
FIG. 6 is a schematic perspective view of a part of the sitting mini-tiller of the present invention;
FIG. 7 is a partial cross-sectional view of the sitting mini-tiller of the present invention;
FIG. 8 is a schematic view of the three-dimensional structure of the station-type mini-tiller during partial ditching.
Description of the reference numerals
The automatic transmission comprises a first machine shell 1, a working tool 11, an armrest 12, a second machine shell 3, a hand lever 31, a shifting block 32, a hinge joint 33, an auxiliary transmission system 4, a power input assembly 41, a first transmission shaft 42, a first gear 421, a gear shifting gear set 422, a second transmission shaft 43, a gear shifting gear set 431, a gear groove 432, a second gear 433, a limit clamp 434, a third transmission shaft 44, a third gear 441, a fourth gear 442, a power output assembly 45, a rear walking assembly 5, a resistance wheel 51, a walking box 52, a third machine shell 521, a bevel gear 522, a bevel gear 523, a resistance transmission assembly 53, a first connecting shaft 531, a second connecting shaft 532, a universal joint coupling 533, a protection pipe 534, a pedal 535 and a seat 536.
Detailed Description
The agricultural operation machine with the rear resistance driving system can be a mini-tiller, a ditcher or a field management machine. In the prior art, a micro-cultivator is generally used for cultivating a field, a ditcher is used for ditching or covering a thin film, and a field management machine can be used for operations such as ridging.
The present invention provides an agricultural machine having a rear resistance drive system, as shown in fig. 1, comprising:
the main machine comprises a main machine body, a first machine shell 1, a main speed change system and a working tool 11, wherein the main speed change system is arranged in the first machine shell 1, the working tool 11 is in transmission connection with the main speed change system, and a handrail 12 is arranged at the upper part of the main machine body; and
the rear resistance driving system comprises an auxiliary transmission system 4 arranged in the second machine shell 3 and a rear walking component 5 in transmission connection with the auxiliary transmission system 4, and the rear walking component 5 is hinged with the first machine shell 1;
the first machine shell 1 is fixedly connected with the second machine shell 3, and the speed output by the rear walking component 5 is smaller than the speed output by the operation cutter 11. Therefore, the rear walking system generates resistance in tillage, the rear walking system is equivalent to the action of the resistance rod, and crawling force is generated when the micro-tillage machine is blocked in walking, so that the micro-tillage machine always works at a fixed speed, and the continuity and labor saving of work are ensured. The auxiliary transmission system 4 of the present invention is provided with a plurality of speed gears to meet the requirements of different soil qualities (hard and loose soil qualities) and different cultivation depths, different cultivation speeds and cultivation modes. According to the agricultural operation machine, the rear resistance driving system is in transmission fit with the main machine body, the rear resistance driving system has a certain rotating speed, not only has the function of dragging the main machine body and having resistance, but also can push the operation cutter to move forward at a fixed speed during operation, so that the labor intensity of cultivation is greatly reduced, and the agricultural operation machine has both resistance and driving functions.
In addition, the working depth and the advancing speed are controlled by the mounted resistance driving system, so that both hands of human are liberated, the working efficiency is high, the work is continuous, the advancing speed is uniform, the depth difference of the farming depth is small, and a ditch cannot be formed after the farming, so that the ground is smooth after the farming.
According to an embodiment of the present invention, the main body of the present invention is in transmission connection with a power source (not shown in the figures) of the mini-tiller, and the power source can be a gasoline engine, a diesel engine or an electric motor, which is prior art and will not be described herein again. In the invention, the main gear shifting system arranged in the first machine shell 1 is in transmission connection with the main gear shifting system, the working tool 11 can be a rotary blade during cultivation, the working tool 11 can be a ditching tool during ditching, and the specific shapes of the ditching tool and the rotary blade are not limited here and can be used at present.
According to the invention, the rear resistance driving system is detachably connected with the rear part of the main machine body, the rear resistance driving system comprises an auxiliary speed change system 4 arranged in a second machine shell 3 and a rear walking assembly 5 in transmission connection with the auxiliary speed change system 4, the rear walking assembly 5 is in hinged connection with the first machine shell 1, specifically, a hinged joint 33 is fixed on one side of a walking box 52, the hinged joint 33 is correspondingly arranged on one side of the second machine shell 3, and the hinged joint is connected by adopting a bolt, so that when the rear resistance driving system is taken down from the main machine body, a resistance rod can be arranged on the main machine body, and the structure is the same as that of the existing mini-tiller. The walking box 52 and the second machine shell 3 are hinged, so that the walking box 52 can swing left and right relative to the second machine shell 3, walking operators can conveniently operate the handrails 12 to turn, and the phenomenon of missing cultivation during cultivation is avoided.
The first casing 1 and the second casing 3 of the present invention are fixedly connected, specifically, a fastening member mode can be adopted, the shapes of the first casing 1 and the second casing 3 are not limited, the rotating speed of the working tool 11 of the present invention adopts a conventional speed, generally 100-300 rotating speed, after the speed change of the main speed change system and the auxiliary speed change system 4, the output speed of the rear walking assembly 5 can be controlled to be about 1-50 rotation, which is far less than the output speed of the existing working tool 11. Thus, in the case of a structure without using a resistance bar, the operator does not press down the armrest 12 with a great amount of force, and the work is labor-saving and efficient.
Further, as shown in fig. 2-5, the auxiliary transmission system 4 includes a power input assembly 41, a first transmission shaft 42, a second transmission shaft 43, a third transmission shaft 44 and a power output assembly 45, wherein the power input assembly 41 is rotatably mounted in the second housing 3, the power input assembly 41 is in transmission connection with an output end of the main transmission system, the first transmission shaft 42 is rotatably mounted in the second housing 3, a first gear 421 and a shift gear set 422 are fixed on the first transmission shaft 42, the first gear 421 is in transmission connection with the power input assembly 41, the second transmission shaft 43 is parallel to the first transmission shaft 42, a shift gear set 431 is coaxially mounted on the second transmission shaft 43, the shift gear set 431 is capable of meshing with the shift gear set 422, a second gear 433 is further fixed on the second transmission shaft 43, the second gear 433 is meshed with a third gear 441 mounted on the third transmission shaft 44, a fourth gear 442 is fixed on the third transmission shaft 44, the fourth gear 442 is in transmission cooperation with the power output assembly 45, and the power output assembly 45 is used for outputting power from the main transmission system to the rear traveling assembly 5;
the hand lever 31 is installed on the second housing 3, the shifting block 32 is installed on the end of the hand lever 31 extending into the second housing 3, and the shifting block 32 can drive the speed change gear set 431 to move along the axial direction of the second transmission shaft 43 after the hand lever 31 is operated, so that the speed change gear set 431 can be meshed with different gears of the gear shift gear set 422.
According to an embodiment of the present invention, in operation, power from the main transmission system is transmitted to the first gear 421 through the power input assembly 41, the first gear 421 is fixedly connected to the first transmission shaft 42 through a spline, two ends of the first transmission shaft 42, the second transmission shaft 43 and the third transmission shaft 44 are connected to the second housing 3 through bearings, the first transmission shaft 42 rotates to drive the shift gear set 422 to rotate, the second transmission shaft 43 is coaxially installed with the shift gear set 431, the shift gear set 431 is movable along an axial direction of the second transmission shaft 43 so as to be engaged with the shift gear set 422, the second transmission shaft 43 is further fixed with the second gear 433 through a spline, the second gear 433 is engaged with the third gear 441 installed on the third transmission shaft 44, the third transmission shaft 44 is fixed with the fourth gear 442, the fourth gear 442 is in transmission fit with the power output assembly 45, the rotational speeds of the second transmission shaft 43 after shifting are different, and power is output to the rear traveling assembly 5 through the power output assembly 45 through the third gear 441.
A hand lever 31 is installed on the upper portion of the second machine shell 3, a shifting block 32 is installed at the end portion, extending into the second machine shell 3, of the hand lever 31, and the shifting block 32 can be formed by adopting an existing structure. During gear shifting, the operating lever 31 can drive the speed change gear set 431 to move along the axial direction of the second transmission shaft 43 through the shifting block 32, so that the speed change gear set 431 can be meshed with different gears of the gear shifting gear set 422.
The power output assembly 45 is matched with a transmission shaft and a gear, the transmission shaft is still rotatably installed inside the second machine shell 3 through a bearing, and the gear is meshed with the third gear 441.
Further, the power input assembly 41 includes an input shaft, the input shaft is rotatably connected with the second housing 3, and the end of the input shaft located in the second housing 3 is meshed with the first gear 421. The end of the input shaft is toothed in an annular array so as to mesh with the first gear 421.
Further, change gear 431 inner wall has a plurality of gear grooves 432 that distribute along second transmission shaft 43 length direction, and change gear 431 inner wall is the inner wall of being connected with second transmission shaft 43, is provided with spacing card 434 in the second transmission shaft 43, spacing card 434 is perpendicular with second transmission shaft 43 axis direction, and spacing card 434 both ends stretch out outside second transmission shaft 43 and can block in gear groove 432, and change gear 431 includes first change gear, second change gear and third change gear, and first change gear, second change gear and third change gear are integrated into one piece structure, and the size of first change gear, second change gear and third change gear is selected according to actual conditions.
According to an embodiment of the present invention, the position-limiting card 434 is of an existing structure, such as a spring and a position-limiting ball. Specifically, four gear grooves 432 may be formed in the inner wall of the speed change gear set 431. In order to facilitate the shift gear set 431 to be in the neutral state, the shift gear set 422 of the present embodiment may be arranged corresponding to the shift gear set 431, and thus, when the first gear 421, the second gear 433, and the third gear 441 of the shift gear set 431 are not engaged with the shift gear set 422, the shift gear set 422 may be in the neutral state. Like this, resistance wheel 51 need not lift off ground and with the host computer body and rotate along with the host computer body when ploughing the machine transfer a little and retreating, when avoiding to lift the ground surface through the resistance bar that the machine was ploughed a little to the handrail, lift on the handrail of ploughing a little and make operating personnel and operation cutter distance too near, lead to the operation cutter to cause the injury to the health, it is more convenient, safer, more laborsaving to plough the machine than the tradition a little during finally making the operation.
Further, the handle bar 31 is installed at the upper portion of the second housing 3 and is located near one end of the rear traveling assembly 5. Thereby facilitating the shifting of the gear by the operator.
Further, the rear traveling assembly 5 includes a resistance wheel 51, a traveling box 52 and a resistance transmission assembly 53 in transmission connection with the power output assembly 45 of the auxiliary transmission system 4;
the traveling box 52 comprises a third housing 521, a bevel gear 522 arranged inside the third housing 521, and a bevel gear 523 in gear engagement with the bevel gear 522; the bevel gear 523 is mounted inside the third housing 521 through a resistance input shaft, the end of the resistance input shaft extending out of the third housing 521 is a power input end, the power input end is in transmission connection with the resistance transmission assembly 53, the bevel gear 522 is mounted inside the third housing 521 through a resistance output shaft, and the end of the resistance output shaft extends out of the third housing 521 and is provided with the resistance wheel 51.
According to an embodiment of the present invention, in this embodiment, the resistance wheel 51 can be selected according to different requirements, for example, when the operator is walking to cultivate land, in order to provide greater resistance, the resistance wheel 51 needs to have a longer rod on the circumferential surface, so as to be inserted deeper into the ground. And when adopting the mode that operating personnel sat the operation in seat 536 or cushion, then adopt the better resistance wheel 51 of support nature, because operating personnel's weight has provided some gravity this moment, can satisfy rotary blade operation arable land degree of depth completely, adopt resistance wheel 51 that the wheel face resistance is little to conveniently walk.
Further, the resistance transmission assembly 53 includes a first connecting shaft 531 and a universal joint coupling 533 detachably connected to both ends of the first connecting shaft 531, and the universal joint coupling 533 is in transmission connection with the power output assembly 45 and the resistance input shaft of the auxiliary transmission system 4, respectively.
In this embodiment, the universal joint coupling 533 and the first connecting shaft 531 are connected and driven, so that the resistance driving system can be easily disassembled and assembled and the assembly error can be overcome.
Further, the resistance transmission assembly 53 includes a second connecting shaft 532, a protection tube 534 and a universal joint coupling 533 connected to two ends of the second connecting shaft 532, and the protection tube 534 is sleeved outside the second connecting shaft 532.
According to an embodiment of the present invention, as shown in fig. 6 and 7, there is provided another resistance transmission assembly 53, which is different from the other embodiments in that the length of the second connection shaft 532 is greater than that of the first connection shaft 531, and the hinge joint 33 is fixed to the lower portion of the protection pipe 534 to be hinged to the second housing 3. The protection tube 534 fixes the pedal 535 for stepping, and the third housing 521 is externally installed with a variable height seat 536 or a cushion. During the use, operating personnel can sit the operation on cushion or seat 536, and the mode that can rise can be, adopts the structure of cup jointing of two steel pipes, and two steel pipes correspond along the direction of height and have seted up the hole, adopt the bolt to insert the hole and can realize fixing.
Further, as shown in fig. 8, when the mini-tiller is used for ditching, the land and the ground are hard, or when the mini-tiller needs to be pushed to move, the resistance output shaft can also be provided with the travelling wheels, so that time and labor are saved.
Compared with the existing self-propelled mini-tiller, the agricultural operation machine provided by the invention has the advantages that the rear resistance driving system replaces the structure of the resistance rod, the handrail does not need to be pressed down by means of the weight of the body, the labor intensity of workers is reduced, the working depth and the advancing speed are controlled by the operation cutter and the rear resistance driving system, the labor intensity is low, and the working efficiency is high.
Compared with the existing front rotary tillage type mini-tiller, the agricultural operation machine provided by the invention has the advantages that the walking wheels are arranged on the output shaft of the rear resistance driving system, then the neutral gear is hung, the heavy mini-tiller can be easily transferred in the field, and the rear resistance driving system can be well suitable for dry land tillage with harder geology.
Compared with the existing rear rotary tillage type agricultural operation machine, the rear resistance driving system and the operation cutter have the speed difference, so that the walking wheels have enough crawling force, the front wheels cannot be tilted upwards to leave the ground due to the rotation stress of the cutter, the mini-tiller flies out along with the speed linear velocity direction of the cutter, and potential safety hazards are eliminated.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. The mini-tiller provided by the invention is an agricultural operation machine with a rear resistance driving system, and can be a mini-tiller, a ditcher or a field management machine. Including the combination of the specific features in any suitable manner such as the combination of a trenching blade, a rotary tillage blade with resistance wheels of different shapes and resistances, or the combination of a seat, a cushion, a trenching blade and a rotary tillage blade. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.
Claims (10)
1. An agricultural work machine having a rear drag drive system, comprising:
the main machine body comprises a first machine shell, a main speed changing system arranged in the first machine shell and an operation cutter in transmission connection with the main speed changing system; and
the rear resistance driving system comprises an auxiliary speed change system arranged in the second machine shell and a rear walking assembly in transmission connection with the auxiliary speed change system, and the rear walking assembly is hinged with the first machine shell;
the first machine shell is fixedly connected with the second machine shell, and the output speed of the rear walking assembly is smaller than the output speed of the operation cutter.
2. The agricultural implement machine having a rear drag drive system of claim 1, wherein the secondary transmission system comprises a power input assembly, a first transmission shaft, a second transmission shaft, a third transmission shaft and a power output assembly, the power input assembly is rotatably mounted in the second housing, the power input assembly is in transmission connection with the output end of the main transmission system, the first transmission shaft is rotatably mounted in the second housing, the first transmission shaft is fixed with a first gear and a shift gear set, the first gear is in transmission connection with the power input assembly, the second transmission shaft is parallel to the first transmission shaft, the second transmission shaft is coaxially mounted with a shift gear set, the shift gear set can be engaged with the shift gear set, the second transmission shaft is further fixed with a second gear, the second gear is engaged with a third gear mounted on the third transmission shaft, the third transmission shaft is fixed with a fourth gear, the fourth gear is in transmission connection with the power output assembly, and the power output assembly is used for outputting power from the main transmission system to the rear traveling assembly;
wherein, the handle bar is installed to the second casing, the shifting block is installed to the tip that the handle bar stretched into in the second casing, and accessible shifting block drives behind the operation handle bar change gear group removes along second transmission shaft axis direction to make change gear group can with the different gear engagement of gear shifting gear group.
3. An agricultural work machine having a rear resistance drive system according to claim 2, wherein the power input assembly includes an input shaft that is rotatably connected to the second housing and an end of the input shaft within the second housing engages the first gear.
4. The agricultural working machine with the rear resistance driving system according to claim 2 or 3, wherein the inner wall of the speed change gear set is provided with a plurality of gear grooves distributed along the length direction of the second transmission shaft, a limit card is arranged in the second transmission shaft, the limit card is perpendicular to the axis direction of the second transmission shaft, two ends of the limit card extend out of the second transmission shaft and can be clamped in the gear grooves, the speed change gear set comprises a first speed change gear, a second speed change gear and a third speed change gear, and the first speed change gear, the second speed change gear and the third speed change gear are of an integrally formed structure;
when the limit is clamped into one of the gear grooves, the speed change gear set and the gear shifting gear set are in a non-meshed state.
5. An agricultural machine having a rear drag drive system according to claim 2 or 3, wherein the handle bar is mounted to the upper portion of the second housing at a position adjacent to one end of the rear running assembly.
6. An agricultural implement machine having a rear resistance drive system according to claim 2 or 3, wherein the rear travel assembly includes resistance wheels, a travel box and a resistance transmission assembly drivingly connected to the power take off assembly of the range-change system;
the walking box comprises a third shell, a bevel gear arranged in the third shell and a bevel gear meshed with the bevel gear; the bevel gear is installed inside the third casing through a resistance input shaft, the end part of the resistance input shaft extending out of the third casing is a power input end, the power input end is in transmission connection with the resistance transmission assembly, the bevel gear is installed inside the third casing through a resistance output shaft, and the end part of the resistance output shaft extends out of the third casing and is provided with the resistance wheel.
7. An agricultural machine having a rear resistance drive system according to claim 6, wherein the resistance drive assembly includes a first connecting shaft and universal joint couplings releasably attached to opposite ends of the first connecting shaft, the universal joint couplings being drivingly connected to the power take-off assembly and the resistance input shaft of the auxiliary transmission system, respectively.
8. The agricultural implement machine with the rear resistance drive system of claim 6, wherein the resistance transmission assembly includes a second connecting shaft, a protection pipe, and a universal joint coupling connected to both ends of the second connecting shaft, the protection pipe is sleeved outside the second connecting shaft.
9. An agricultural machine having a rear resistance drive system according to claim 8, wherein a step is fixed to the protective pipe, and a seat or a cushion with a variable height is attached to the outside of the third housing.
10. An agricultural implement having a rear resistance drive system according to any one of claims 7 to 9, wherein the resistance output shaft may also mount road wheels.
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| CN115280912B (en) | 2023-10-24 |
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Address after: 400707 No. 3, building 3, No. 99, Jiade Avenue, caijiagang Town, Beibei District, Chongqing Applicant after: Chongqing keniu Machinery Co.,Ltd. Address before: No. 3, Building 3, No. 99, Jiade Avenue, Caijiagang Street, Beibei District, Chongqing 400707 Applicant before: Chongqing keniu Machinery Co.,Ltd. |
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