CN104025735A - Walking type agricultural soil preparation machine - Google Patents
Walking type agricultural soil preparation machine Download PDFInfo
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- CN104025735A CN104025735A CN201410256496.9A CN201410256496A CN104025735A CN 104025735 A CN104025735 A CN 104025735A CN 201410256496 A CN201410256496 A CN 201410256496A CN 104025735 A CN104025735 A CN 104025735A
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Abstract
The invention discloses a walking type agricultural soil preparation machine. The walking type agricultural soil preparation machine comprises a frame, a walking mechanism, an engine and a gearbox, wherein a push shovel mechanism is arranged in the front of the frame; the walking mechanism comprises a left crawler-type walking wheel, a right crawler-type walking wheel and a driving axle, and the left half axle and the right half axle of the driving axle are respectively connected with driving wheels of the left crawler-type walking wheel and the right crawler-type walking wheel; the input shaft of the gearbox is connected with a main shaft of the engine through a clutch, a first output gear and a second output gear are arranged on the output shaft of the gearbox, the first output gear is connected with the driving axle, the second output gear is connected with a driving oil pump, and the driving oil pump is respectively connected to a soil preparation shovel lifting oil cylinder and a soil preparation shovel tilt oil cylinder through a high-pressure oil pipe and a hydraulic control valve; a handrail is mounted on the shell of the gearbox, and a clutch operating lever, a shift operating lever and an operating lever of the hydraulic control valve are respectively arranged on the handrail. The walking type agricultural soil preparation machine is self-powered, high in integration level and good in passing ability, and can easily walk in various landforms; moreover, the machine is simple in structure, low in cost and wide in application range.
Description
Technical field
The present invention relates to field of agricultural machinery, particularly relate to a kind of hand-held agro-farming soil preparation machine.
Background technology
Existing soil preparation machine is generally combined soil preparing machine, this soil preparation machine self does not have power, and it need to be arranged on the rear of tractor, uses together with tractor, advance by tractor-drawn, because this soil preparation machine itself is longer, after linking together, it and tractor become length very big, turn to very dumb, trafficability characteristic is very poor, the narrow road of can not walking, therefore, can only use in wide flat area.
On the other hand, soil preparation machine, tractor are large-scale plant equipment, bulky, and weight is also large, and at southern china and a lot of regional rainfalls are very abundant in the world, soil property is soft, and water content is high, can not carry the weight of soil preparation machine, tractor completely.Southern china and in the world a lot of areas be generally the densely covered hilly country of terraced fields or the narrow mountain area of road, gully, terraced bank are full of, soil preparation machine, tractor can be in these area walkings, limit greatly the scope of application of soil preparation machine, therefore, these areas still need peasant to rely on the farm implements such as hoe, farm cattle, plow harrow manually to complete whole ground process up to now, production efficiency is low, therefore, the hysteresis of scarification equipment development has limited China and the agricultural development in a lot of areas in the world greatly.
The price of tractor own is higher, conventionally need to coordinate more farm implements to use, and to reduce production costs, still, common peasant's land area is limited, and crops are less, therefore, uses the cost of tractor very high; And the unwanted function of combined soil preparing machine is more, complex structure, price is higher, has limited equally the scope of application of soil preparation machine.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, a kind of hand-held agro-farming soil preparation machine is provided, it is self-powered, and integrated level is high, and volume is little, lightweight, and trafficability characteristic is good, be easy in various landform walkings, and it is simple in structure, cheap, applied range.
The object of the present invention is achieved like this:
A kind of hand-held agro-farming soil preparation machine, comprises vehicle frame, running gear, engine, gearbox,
Described vehicle frame front portion is provided with shoveling mechanism, described shoveling mechanism comprises wholely and shoveling, support arm, the quantity of described support arm is two, two support arms are symmetricly set on vehicle frame front portion, rear end and the vehicle frame of two support arms are hinged, the front end of two support arms and whole shovel hinged, two support arms are shoveled hoist cylinder and are connected with vehicle frame by whole respectively, support arm and whole the tailpiece of the piston rod that shovels hoist cylinder are hinged, vehicle frame and whole cylinder body end of shoveling hoist cylinder are hinged, shovel by whole wholely and shovel the crossbeam being fixedly connected with between dump ram and two support arms and be connected, shovel with whole the tailpiece of the piston rod that shovels dump ram hinged wholely, crossbeam and whole cylinder body end of shoveling dump ram are hinged,
Described running gear comprises left and right caterpillar type tavelling wheel, drive axle, and the left and right half of described drive axle is connected with the driving wheel of left and right caterpillar type tavelling wheel respectively;
The power shaft of described gearbox is connected with the main shaft of engine by clutch, the output shaft of gearbox is provided with first, second output gear, the first output gear is connected with drive axle, the second output gear and one drives oil pump to be connected, this driving oil pump is by high-pressure oil pipe connecting fluid pressure control valve, and hydraulic control valve connects whole hoist cylinder, whole the dump ram that shovels of shoveling by high-pressure oil pipe respectively;
On the housing of described gearbox, handrail is installed, on described handrail, is respectively equipped with the control stick of clutch operating lever, gear shift operating rod, hydraulic control valve.
The first output gear of described gearbox is connected with the travelling gear power being provided with in Driving axle housing, and this travelling gear is enclosed within on a power transmission shaft, and the two ends of power transmission shaft are connected with the left and right half of drive axle by arrangement of clutch respectively.
A left side for described drive axle, right axle shaft is supported in respectively the housing of drive axle by clutch shaft bearing, described arrangement of clutch comprises the left side being respectively equipped with in housing, right sliding sleeve, a described left side, right sliding sleeve respectively with housing in respectively arrange the second bearing be slidably matched, the 3rd bearings is passed through respectively in a left side in the two ends of described power transmission shaft, in the hole of right sliding sleeve, described travelling gear is with left, the end face that right sliding sleeve is corresponding is in opposite directions provided with the end-tooth of normal engagement, left, the opposing one end of right sliding sleeve respectively with a left side, right axle shaft is positioned at one end spline joint of housing, left, right sliding sleeve with the left side between corresponding clutch shaft bearing, on right axle shaft, cover has return spring respectively, left, the annular groove that right sliding sleeve is provided with by periphery is respectively with left, right shifting fork mechanism connects.
Described shifting fork mechanism is rotation shift fork, and the jaw of rotation shift fork inserts in the annular groove on sliding sleeve periphery, and the fork-tail of rotation shift fork is connected with control drag-line.
Jaw, the fork-tail of described left and right rotation shift fork are mutually vertical, and when normality, the fork-tail end of left and right rotation shift fork in opposite directions.
The fulcrum of described left and right rotation shift fork is articulated with respectively in housing the bearing pin arranging respectively, the left hand and right hand of described handrail on be respectively equipped with handle, left hand and right hand is connected upper handle respectively with the control drag-line of left and right rotation shift fork.
Described engine is single-cylinder air-cooled diesel engine, and this engine is positioned at directly over the supporting wheel of caterpillar type tavelling wheel, and the side of engine is fixed diesel fuel tanks, air filter, silencer.
Between the left hand and right hand handle of described handrail, be fixedly connected with an installing rack, each control stick and hydraulic control valve are all fixed on this installing rack.
Described driving oil pump is connected with gearbox by reduction box.
The housing rear portion of described drive axle is fixed with fuel tank hanger, and the hydraulic oil container of described driving oil pump is fixed on this fuel tank hanger.
Owing to having adopted such scheme, rear end and the vehicle frame of two support arms are hinged, and the front end of two support arms and whole shovel hingedly forms and shovels and being connected of vehicle frame wholely.Between two support arms, be fixedly connected with crossbeam, two support arms are synchronized with the movement, and the installing space that shovels dump ram is provided wholely.Two support arms are shoveled hoist cylinder and are connected with vehicle frame by whole respectively, support arm and whole the tailpiece of the piston rod that shovels hoist cylinder are hinged, vehicle frame and whole cylinder body end of shoveling hoist cylinder are hinged, shovel wholely and when hoist cylinder shrinks or extends, can promote or reduce the position of shoveling wholely.Shovel by whole wholely and shovel the crossbeam being fixedly connected with between dump ram and two support arms and be connected, shovel with whole the tailpiece of the piston rod that shovels dump ram hinged wholely, crossbeam and whole cylinder body end of shoveling dump ram are hinged, shovel when dump ram shrinks or extends wholely and can make to shovel clockwise wholely or rotate counterclockwise.Therefore, according to need of work, can adjust up and down or tilt and shovel wholely, better ground grading.The running gear of this hand-held agro-farming soil preparation machine is crawler type walking mechanism, longer with the contact area on ground, is convenient to walk under various operating modes, and the scope of application is more extensive.The first output gear of gearbox is connected with drive axle, makes the walking power of engine as this hand-held agro-farming soil preparation machine; The second output gear of gearbox and one drives oil pump to be connected, this driving oil pump is by high-pressure oil pipe connecting fluid pressure control valve, hydraulic control valve connects whole hoist cylinder, whole the dump ram that shovels of shoveling by high-pressure oil pipe respectively, make the power of engine as the hydraulic system of this hand-held agro-farming soil preparation machine, by hydraulic control valve whole the shovel of both can having adjusted up and down or tilt.On the housing of described gearbox, handrail is installed, on described handrail, is respectively equipped with the control stick of clutch operating lever, gear shift operating rod, hydraulic control valve, be convenient to staff operation, and solenoidoperated cluthes, gearbox, hydraulic control valve.This hand-held agro-farming soil preparation machine carries engine power, does not need to connect tractor again, thereby length is minimum, and trafficability characteristic is good, is convenient to, in various landform walkings, adapt to hilly country or mountain area; This hand-held agro-farming soil preparation machine volume is little, lightweight, the soft terrain of can walking, only need to build plank can cross gully, terraced bank, and the scope of application is extensive, can use in China's overwhelming majority area, improved agricultural production efficiency, and this hand-held agro-farming soil preparation machine is simple in structure, cheap, production cost is low, can effectively promote the agricultural development of China and south east asia.
In the housing of drive axle, be respectively equipped with a left side, right sliding sleeve, left, in housing chamber between right sliding sleeve, be provided with a power transmission shaft, the two end supports of this power transmission shaft is in a left side, in the hole of right sliding sleeve, the first output gear of described gearbox is connected with travelling gear power, travelling gear is with left, the end face that right sliding sleeve is corresponding is in opposite directions provided with the end-tooth of normal engagement, left, the opposing one end of right sliding sleeve respectively with a left side, right axle shaft is positioned at one end spline joint of housing, therefore, under normality, the power of travelling gear can transfer a torque to a left side by the end-tooth of normal engagement, right sliding sleeve, left, right sliding sleeve transfers a torque to a left side by spline, right axle shaft, realize the driving of Minitype agricultural machinery.Left and right sliding sleeve with in the left and right half between corresponding clutch shaft bearing respectively cover have return spring, ensure that the end-tooth of travelling gear and left and right sliding sleeve is in normal engagement.The jaw clamping of the annular groove that left and right sliding sleeve is provided with by periphery respectively and left and right rotation shift fork, the fork-tail of left and right rotation shift fork connects respectively control drag-line.In the time pulling the control drag-line of anticlockwise shift fork, the jaw of anticlockwise shift fork is stirred left sliding sleeve away from travelling gear, travelling gear separates with the end-tooth of left sliding sleeve, thereby engagement is interrupted, no longer transmitting torque, therefore, left half axle stops operating, and right axle shaft works on, and then realize Minitype agricultural machinery and turn left; In the time pulling the control drag-line of right rotation shift fork, the jaw of right rotation shift fork is stirred right sliding sleeve away from travelling gear, travelling gear separates with the end-tooth of right sliding sleeve, thereby engagement is interrupted, no longer transmitting torque, therefore, right axle shaft stops operating, and left half axle works on, and then realize Minitype agricultural machinery and turn right.Therefore, this drive axle can be realized auto-steering, handiness, and can not damage equipment, protection operator's is healthy and safe.
Jaw, the fork-tail of left and right rotation shift fork are mutually vertical, when normality, the fork-tail end of left and right rotation shift fork in opposite directions, shorten distance between the fork-tail of left and right rotation shift fork, thereby make distance between the fork-tail of left and right rotation shift fork equal left hand and right hand the distance between upper handle, two control drag-lines are parallel to each other, and stressed effect is better.
Engine is single-cylinder air-cooled diesel engine, and volume is little, lightweight, and power is large, adapts to the power requirement of hand-held agro-farming soil preparation machine.This engine is positioned at directly over the supporting wheel of caterpillar type tavelling wheel, and the side of engine is fixed diesel fuel tanks, air filter, silencer, and the weight of this hand-held agro-farming soil preparation machine is concentrated on supporting wheel, reduces the load of driving wheel, guide wheel, and stressed effect is good.Between the left hand and right hand handle of handrail, be fixedly connected with an installing rack, each control stick and hydraulic control valve are all fixed on this installing rack, are convenient to staff and handle.Drive oil pump to be connected with gearbox by reduction box, slow down to increase and turn round, strength is larger, adapts to agricultural use environment.The housing rear portion of drive axle is fixed with fuel tank hanger, and the hydraulic oil container of described driving oil pump is fixed on this fuel tank hanger, has shortened vehicle frame length, makes complete vehicle structure compactness, and volume is less, and trafficability characteristic is better.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is that schematic diagram is looked on the right side of Fig. 1;
Fig. 3 is the schematic top plan view of Fig. 1;
Fig. 4 is schematic perspective view of the present invention;
Fig. 5 is the structural representation of drive axle.
In accompanying drawing, 1 is vehicle frame, 2 is engine, 3 is gearbox, 4 for to shovel wholely, 5 is support arm, 6 for shovel hoist cylinder wholely, 7 for shovel dump ram wholely, 8 is crossbeam, 9, 10 is left, right-hand track chiain formula road wheel, 11 is drive axle, 12, 13 is left, right axle shaft, 14 for driving oil pump, 15 is hydraulic control valve, 16 is handrail, 17 is clutch operating lever, 18 is gear shift operating rod, 19 is the control stick of hydraulic control valve, 20 is travelling gear, 21 is power transmission shaft, 22 is clutch shaft bearing, 23, 24 is left, right sliding sleeve, 25 is the second bearing, 26 is the 3rd bearing, 27 is end-tooth, 28 is return spring, 29 is annular groove, 30 is rotation shift fork, 31 for controlling drag-line, 32 is bearing pin, 33 is handle, 34 is diesel fuel tanks, 35 is air filter, 36 is silencer, 37 is installing rack, 38 is reduction box, 39 is fuel tank hanger, 40 is hydraulic oil container, 41 is bevel gear shaft, 42 is accumulator.
Embodiment
Referring to Fig. 1 to Fig. 5, for a kind of embodiment of hand-held agro-farming soil preparation machine, comprise vehicle frame 1, running gear, engine 2, gearbox 3, engine 2, gearbox 3 are all bolted on vehicle frame, and described vehicle frame 1 front portion is provided with shoveling mechanism, described shoveling mechanism comprise shovel 4 wholely, support arm 5, the quantity of described support arm 5 is two, two support arms 5 are symmetricly set on vehicle frame 1 front portion, and the rear end of two support arms 5 and vehicle frame 1 are hinged, the front end of two support arms 5 and whole shovel 4 hinged.Two support arms 5 are shoveled hoist cylinder 6 and are connected with vehicle frame 1 by whole respectively, support arm 5 is hinged with the tailpiece of the piston rod that shovels hoist cylinder 6 wholely, vehicle frame 1 is hinged with the cylinder body end of shoveling hoist cylinder 6 wholely, in the present embodiment, the two ends, left and right of vehicle frame be respectively equipped with upwardly extending for whole the hinged bracing frame of hoist cylinder that shovels, bracing frame can increase the height that shovels hoist cylinder rear end hinge wholely, thereby makes the angle that shovels hoist cylinder and support arm become large, application of force better effects if wholely.Shovel 4 is shoveled the crossbeam 8 being fixedly connected with between dump ram 7 and two support arms 5 and is connected by whole wholely, shovel 4 hinged with the tailpiece of the piston rod that shovels dump ram 7 wholely wholely, crossbeam 8 is hinged with the cylinder body end of shoveling dump ram 7 wholely, in the present embodiment, the hinge that shovels dump ram front end is positioned at the top of support arm wholely, prevent in whole ground process, shovel dump ram and other objects bump wholely.When the described lower surface of shoveling is set to shovel type wholely, can ground grading, the described lower surface of shoveling is set to plough type wholely, can be for ploughing.
Described running gear comprises left and right caterpillar type tavelling wheel 9,10, drive axle 11, each caterpillar type tavelling wheel comprises respectively a guide wheel, a supporting wheel, a driving wheel, the lower surface of guide wheel, supporting wheel, driving wheel flushes, wherein, described supporting wheel is rotatably supported in the dead axle that vehicle frame two ends are welded and fixed, for load-bearing, described engine 2 is single-cylinder air-cooled diesel engine, this engine 2 is positioned at directly over the supporting wheel of caterpillar type tavelling wheel, and the side of engine 2 is fixed diesel fuel tanks 34, air filter 25, silencer 36.On the guide wheel of the each side of vehicle frame, supporting wheel, driving wheel, wrap up rubber belt track, the left and right half 12,13 of described drive axle 11 is connected with the driving wheel of left and right caterpillar type tavelling wheel 9,10 respectively.The power shaft of described gearbox 3 is connected with the main shaft of engine 2 by clutch, the output shaft of gearbox 3 is provided with first, second output gear, the first output gear is connected with drive axle 11 power, the second output gear and one drives oil pump 14 to be connected, this driving oil pump 14 is by high-pressure oil pipe connecting fluid pressure control valve 15, and hydraulic control valve 15 connects whole hoist cylinder 6, whole the dump ram 7 that shovels of shoveling by high-pressure oil pipe respectively.Handrail 16 is installed on the housing of described gearbox 3, on described handrail 16, is respectively equipped with the control stick 19 of clutch operating lever 17, gear shift operating rod 18, hydraulic control valve.Between the left hand and right hand handle of described handrail 16, be fixedly connected with an installing rack 37, each control stick and hydraulic control valve 15 are all fixed on this installing rack 37.In the present embodiment, on installing rack 37, be also welded with instrument cases.
Described gearbox be positioned at the rear of engine and drive axle directly over, described driving oil pump 14 is positioned at the rear of gearbox, and is connected with gearbox 3 by reduction box 38.In the present embodiment, driving oil pump is high-pressure gear pump, and power is larger, adapts to need of work.The housing rear portion of described drive axle 11 is fixed with fuel tank hanger 39, and the hydraulic oil container 40 of described driving oil pump 14 is fixed on this fuel tank hanger 39, hydraulic oil container 40 is positioned at drive oil pump under, be convenient to be connected with driving the oil inlet pipe of oil pump.This distribution mode has shortened the width of this hand-held agro-farming soil preparation machine, and allows bit space for whole motion of shoveling provides.In the present embodiment, the top of reduction box is also provided with accumulator 42, for ato unit, and is other equipment (if electric light etc.) power supply of installing additional.
The first output gear of described gearbox 3 is connected with travelling gear 20 power that are provided with in drive axle 11 housings, this travelling gear 20 is enclosed within on a power transmission shaft 21, travelling gear can be connected or matched in clearance with splined driveshaft, in the present embodiment, travelling gear is connected with splined driveshaft, to prevent, between travelling gear and power transmission shaft, fretting wear occurs, and lock by holding screw, prevent that travelling gear from axially moving.Described travelling gear 13 is bevel gear, and travelling gear is by engaging and accept power with the bevel gear shaft 41 of gearbox.The upper end of bevel gear shaft 41 arranges gear and engages with gearbox the first output gear.The two ends of power transmission shaft 21 are connected with the left and right half 12,13 of drive axle 11 by arrangement of clutch respectively.Further, the left and right half 12,13 of described drive axle 11 is supported in respectively the housing of drive axle 11 by clutch shaft bearing 22, clutch shaft bearing is located at respectively the two ends of housing, further, the two ends of described housing are respectively equipped with oil sealing, each oil sealing lay respectively at the outside of corresponding clutch shaft bearing, prevent oil leakage, and impurity enters in housing.Described arrangement of clutch comprises the left and right sliding sleeve 23,24 being respectively equipped with in housing, described left and right sliding sleeve 23,24 respectively with housing in respectively arrange the second bearing 25 be slidably matched, the outer peripheral face of the second bearing and housing interference fit.The two ends of described power transmission shaft 21 are supported in the hole of left and right sliding sleeve 23,24 by the 3rd bearing 26 respectively, the inner peripheral surface of the 3rd bearing and power transmission shaft matched in clearance, and the outer peripheral face of the 3rd bearing and left and right sliding sleeve are slidably matched.The end face that described travelling gear 20 is corresponding in opposite directions with left and right sliding sleeve 23,24 is provided with the end-tooth 27 of normal engagement, and in the present embodiment, the end-tooth that travelling gear is provided with is recessed tooth, and the end-tooth of left and right sliding sleeve is double wedge.The opposing one end of left and right sliding sleeve 23,24 is positioned at respectively one end spline joint of housing with left and right half 12,13, left and right sliding sleeve 23,24 with in the left and right half 12,13 between corresponding clutch shaft bearing 22 respectively cover have return spring 28, in the present embodiment, return spring is Compress Spring.The annular groove 29 that left and right sliding sleeve 23,24 is provided with by periphery is respectively connected with left and right shifting fork mechanism.Further, described shifting fork mechanism is rotation shift fork 30, and the jaw of rotation shift fork 30 inserts in the annular groove 29 on sliding sleeve periphery, and the fork-tail of rotation shift fork 30 is connected with control drag-line 31.Jaw, the fork-tail of described left and right rotation shift fork 30 are mutually vertical, and when normality, the fork-tail end of left and right rotation shift fork 30 in opposite directions.The fulcrum of described left and right rotation shift fork 30 is articulated with respectively the bearing pin 32 arranging respectively in housing, and locks described bearing pin and left and right half spatial vertical by holding screw.The left hand and right hand of described handrail 16 on be respectively equipped with handle 33, left hand and right hand is connected upper handle 33 respectively with the control drag-line 31 of left and right rotation shift fork 30.
The present invention is not only confined to above-described embodiment, carries out the technical scheme of a little change in the situation that not deviating from technical solution of the present invention spirit, should fall into protection scope of the present invention.
Claims (10)
1. a hand-held agro-farming soil preparation machine, comprises vehicle frame, running gear, engine, gearbox, it is characterized in that:
Described vehicle frame front portion is provided with shoveling mechanism, described shoveling mechanism comprises wholely and shoveling, support arm, the quantity of described support arm is two, two support arms are symmetricly set on vehicle frame front portion, rear end and the vehicle frame of two support arms are hinged, the front end of two support arms and whole shovel hinged, two support arms are shoveled hoist cylinder and are connected with vehicle frame by whole respectively, support arm and whole the tailpiece of the piston rod that shovels hoist cylinder are hinged, vehicle frame and whole cylinder body end of shoveling hoist cylinder are hinged, shovel by whole wholely and shovel the crossbeam being fixedly connected with between dump ram and two support arms and be connected, shovel with whole the tailpiece of the piston rod that shovels dump ram hinged wholely, crossbeam and whole cylinder body end of shoveling dump ram are hinged,
Described running gear comprises left and right caterpillar type tavelling wheel, drive axle, and the left and right half of described drive axle is connected with the driving wheel of left and right caterpillar type tavelling wheel respectively;
The power shaft of described gearbox is connected with the main shaft of engine by clutch, the output shaft of gearbox is provided with first, second output gear, the first output gear is connected with drive axle, the second output gear and one drives oil pump to be connected, this driving oil pump is by high-pressure oil pipe connecting fluid pressure control valve, and hydraulic control valve connects whole hoist cylinder, whole the dump ram that shovels of shoveling by high-pressure oil pipe respectively;
On the housing of described gearbox, handrail is installed, on described handrail, is respectively equipped with the control stick of clutch operating lever, gear shift operating rod, hydraulic control valve.
2. hand-held agro-farming soil preparation machine according to claim 1, it is characterized in that: the first output gear of described gearbox is connected with the travelling gear power being provided with in Driving axle housing, this travelling gear is enclosed within on a power transmission shaft, and the two ends of power transmission shaft are connected with the left and right half of drive axle by arrangement of clutch respectively.
3. hand-held agro-farming soil preparation machine according to claim 2, it is characterized in that: a left side for described drive axle, right axle shaft is supported in respectively the housing of drive axle by clutch shaft bearing, described arrangement of clutch comprises the left side being respectively equipped with in housing, right sliding sleeve, a described left side, right sliding sleeve respectively with housing in respectively arrange the second bearing be slidably matched, the 3rd bearings is passed through respectively in a left side in the two ends of described power transmission shaft, in the hole of right sliding sleeve, described travelling gear is with left, the end face that right sliding sleeve is corresponding is in opposite directions provided with the end-tooth of normal engagement, left, the opposing one end of right sliding sleeve respectively with a left side, right axle shaft is positioned at one end spline joint of housing, left, right sliding sleeve with the left side between corresponding clutch shaft bearing, on right axle shaft, cover has return spring respectively, left, the annular groove that right sliding sleeve is provided with by periphery is respectively with left, right shifting fork mechanism connects.
4. hand-held agro-farming soil preparation machine according to claim 3, is characterized in that: described shifting fork mechanism is rotation shift fork, and the jaw of rotation shift fork inserts in the annular groove on sliding sleeve periphery, and the fork-tail of rotation shift fork is connected with control drag-line.
5. hand-held agro-farming soil preparation machine according to claim 4, is characterized in that: jaw, the fork-tail of described left and right rotation shift fork are mutually vertical, and when normality, the fork-tail end of left and right rotation shift fork in opposite directions.
6. according to the hand-held agro-farming soil preparation machine described in claim 4 or 5, it is characterized in that: the fulcrum of described left and right rotation shift fork is articulated with respectively the bearing pin arranging respectively in housing, the left hand and right hand of described handrail on be respectively equipped with handle, left hand and right hand is connected upper handle respectively with the control drag-line of left and right rotation shift fork.
7. hand-held agro-farming soil preparation machine according to claim 1, is characterized in that: described engine is single-cylinder air-cooled diesel engine, this engine is positioned at directly over the supporting wheel of caterpillar type tavelling wheel, and the side of engine is fixed diesel fuel tanks, air filter, silencer.
8. hand-held agro-farming soil preparation machine according to claim 1, is characterized in that: between the left hand and right hand handle of described handrail, be fixedly connected with an installing rack, each control stick and hydraulic control valve are all fixed on this installing rack.
9. hand-held agro-farming soil preparation machine according to claim 1, is characterized in that: described driving oil pump is connected with gearbox by reduction box.
10. hand-held agro-farming soil preparation machine according to claim 1, is characterized in that: the housing rear portion of described drive axle is fixed with fuel tank hanger, and the hydraulic oil container of described driving oil pump is fixed on this fuel tank hanger.
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| CN105637997A (en) * | 2016-03-31 | 2016-06-08 | 戴雷栋 | Leveling device of farmland leveling machine |
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| CN105874947A (en) * | 2015-01-09 | 2016-08-24 | 吕文杰 | Greenhouse 3D farm machinery operation platform |
| CN106888588A (en) * | 2017-03-08 | 2017-06-27 | 徐州迪惠尔工程机械有限公司 | A kind of efficiently adjustable land leveller |
| CN108432367A (en) * | 2018-04-03 | 2018-08-24 | 莱州奥伦农业机械有限公司 | Caterpillar band self-propelled rotary cultivator |
| CN112449769A (en) * | 2020-11-18 | 2021-03-09 | 魏忠群 | Agricultural land leveler leveling device |
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