CN111183786A - Wheel type liftable cutter head mower - Google Patents
Wheel type liftable cutter head mower Download PDFInfo
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- CN111183786A CN111183786A CN202010179429.7A CN202010179429A CN111183786A CN 111183786 A CN111183786 A CN 111183786A CN 202010179429 A CN202010179429 A CN 202010179429A CN 111183786 A CN111183786 A CN 111183786A
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- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 241000196324 Embryophyta Species 0.000 claims description 22
- 230000005540 biological transmission Effects 0.000 claims description 13
- 239000006096 absorbing agent Substances 0.000 claims description 11
- 239000003638 chemical reducing agent Substances 0.000 claims description 11
- 230000035939 shock Effects 0.000 claims description 11
- 239000000725 suspension Substances 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 230000005484 gravity Effects 0.000 abstract description 13
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 11
- 244000025254 Cannabis sativa Species 0.000 description 8
- 238000009333 weeding Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 206010024796 Logorrhoea Diseases 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
- A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
- A01D34/64—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
- A01D34/66—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle with two or more cutters
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
- A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
- A01D34/74—Cutting-height adjustment
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
- A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
- A01D34/82—Other details
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Harvester Elements (AREA)
Abstract
The invention discloses a wheeled type cutter head lifting mower which comprises a chassis walking device, a mowing device and two groups of height adjusting devices, wherein the chassis walking device is arranged on the chassis walking device; the chassis walking device comprises a front axle, a rear axle, a frame, walking wheels and a walking power mechanism; the mowing device comprises a rack, a cutting knife and a driving mechanism; the height adjusting device comprises two connecting rods, a connecting rod and an electric push rod which are arranged in parallel; each connecting rod is provided with three hinge points, including an upper hinge point, a middle hinge point and a lower hinge point; the lower end hinge point is hinged with the frame, and the middle hinge point is hinged with the frame; two ends of the connecting rod are respectively hinged with two upper end hinge points; one end of the electric push rod is hinged with the frame, and the other end of the electric push rod is hinged with a hinged point at the upper end of one of the connecting rods. The mower can not only realize height adjustment, but also reduce the gravity borne by the electric push rod, avoid the damage of the electric push rod due to fatigue and prolong the service life of the mower.
Description
Technical Field
The invention relates to the field of agricultural machinery, in particular to a wheeled mower with a liftable cutterhead.
Background
A lawn mower is a most common type of mowing equipment in the prior art, and is also called a weeding machine, a lawn mower, a lawn trimmer and the like. The mower is a mechanical tool for trimming lawn and vegetation, and is composed of cutter head, engine, walking wheels, walking mechanism, blades, handrail and control unit. The cutter head is arranged on the travelling wheel, the engine is arranged on the cutter head, the blade is arranged on the output shaft of the engine, the blade is greatly improved in speed by utilizing the high-speed rotation of the engine, the operation time of weeding workers is saved, and a large amount of manpower resources are reduced.
With the continuous development of scientific technology, modern lawn mowers are mature more and more, but some defects exist, such as the fact that the lawn mowers cannot lift freely, and the weed depth of different lawns is different, and therefore the practicability of the lawn mowers is reduced. Although some existing lawn mowers have a lifting function, for example, patent of invention with publication number CN107006207B discloses a height-adjustable lawn mower, in which when the height is adjusted, a lifting motor is connected with a primary electric push rod and drives the primary electric push rod to move up and down, and a power transmission plate fixed on the primary electric push rod moves up and down along with the primary electric push rod, so as to adjust the height of the grass chopping device relative to the bottom of the frame of the lawn mower. However, the above mower has the following disadvantages: because the garrulous grass device passes through the power transmission board and connects on one-level electric putter for electric putter need bear the whole gravity of garrulous grass device, when elevator motor was out of work, need overcome the gravity of garrulous grass device, makes electric putter be in and continuously bears the weight of the state, and this will lead to elevator motor and one-level electric putter to take place fatigue very easily, causes the damage to elevator motor and one-level electric putter.
Disclosure of Invention
The invention aims to overcome the existing problems and provides a wheeled mower with a liftable cutterhead, which not only can realize height adjustment, but also can reduce the gravity borne by an electric push rod, avoid the damage of the electric push rod due to fatigue and prolong the service life of the mower.
The purpose of the invention is realized by the following technical scheme:
a wheel type mower with a liftable cutterhead comprises a chassis walking device, a mowing device arranged on the chassis walking device and a height adjusting device arranged between the chassis walking device and the mowing device and used for adjusting the height of the mowing device away from the ground; the height adjusting devices are two groups, the two groups of height adjusting devices are respectively positioned at the left side and the right side of the mowing device, wherein,
the chassis walking device comprises a front axle, a rear axle, a frame arranged between the front axle and the rear axle, walking wheels arranged on the front axle and the rear axle and a walking power mechanism for providing power for the walking wheels; one end of the frame is connected with the front axle, and the other end of the frame is connected with the rear axle;
the mowing device comprises a rack, a cutting knife arranged below the rack and used for cutting off weeds, and a driving mechanism used for driving the cutting knife to rotate;
the height adjusting device is of a parallelogram connecting rod structure and comprises two connecting rods, a connecting rod and an electric push rod; the two connecting rods are respectively arranged at the front end and the rear end of the rack in parallel; each connecting rod is provided with three hinge points, including an upper end hinge point at the upper end, a middle hinge point at the middle part and a lower end hinge point at the lower end; the lower end hinge point is hinged with the frame, and the middle hinge point is hinged with the frame; the connecting rods are arranged between the two connecting rods, and two ends of each connecting rod are respectively hinged with two upper end hinge points; one end of the electric push rod is hinged with the frame, and the other end of the electric push rod is hinged with a hinged point at the upper end of one of the connecting rods.
The working principle of the wheel type liftable cutter head mower is as follows:
when the mowing device works, the walking power mechanism provides power for the walking wheels, so that the walking function of the mowing device is realized; the driving mechanism drives the cutting knife to rotate, so that weeds can be trimmed and cut. When the corresponding weeds are different in depth, the height of the mowing device can be adjusted through the height adjusting device, and the specific process is as follows:
when the mowing device needs to be lifted, electric push rods positioned at two sides of the mowing device extend to push the connecting rods to rotate around a middle hinge point on the frame, so that the upper hinge point rotates downwards, the lower hinge point rotates upwards, the other connecting rod is driven to rotate around the hinge point of the frame under the action of the connecting rods, the two connecting rods rotate synchronously, the frame is lifted gradually under the rotation of the lower hinge point, the height of a cutting knife is adjusted, and the mowing device is lifted; when the mowing device needs to be lowered, the electric push rod contracts reversely, so that the two connecting rods rotate reversely around a hinge point in the middle part at the same time, and the mowing device is lowered; because two sets of height adjusting device distribute in grass cutting device's both sides, realize supporting grass cutting device through four connecting rods, reduced the gravity that electric putter bore, realize grass cutting device's height adjustment through the rotation of drive connecting rod, utilize the arm of force of extension connecting rod to reach laborsaving effect for electric putter can not damage because of tired or overload operation in work, improved the life of lawn mower.
In a preferred embodiment of the present invention, the height adjusting device further includes an air stay rod disposed between the connecting rod and the frame, one end of the air stay rod is hinged to the middle of the connecting rod, and the other end is hinged to the frame. By arranging the air stay bar, when the mowing device needs to be lifted, the electric push rod needs to overcome the gravity of the mowing device to lift, and the connecting rod is beneficial to the movement of the connecting rod by virtue of the elasticity of the air stay bar in the forward movement process, so that the mowing device is favorably lifted smoothly; when the mowing device needs to be reduced, the electric push rod can be influenced by the gravity of the mowing device in the contraction process, so that the descending speed is increased, partial gravity is overcome under the elastic action of the supporting rod, the connecting rod and the electric push rod can run stably, and the descending stability of the mowing device is ensured.
In a preferred embodiment of the present invention, three of the hinge points are distributed in a triangular shape, which is beneficial to reduce the pushing stroke of the electric push rod, so as to obtain a larger lifting distance of the mowing device, and meanwhile, the structure is more compact.
Furthermore, an extension part is arranged at the upper end of the connecting rod and extends towards the direction of the electric push rod; and a fourth hinge point is arranged on the extension part and is hinged with the electric push rod. By adopting the structure, the pushing stroke of the electric push rod can be further reduced, so that the mowing device obtains a larger lifting distance, and the height adjusting effect of the mowing device is improved.
According to a preferable scheme of the invention, the front end of the frame is connected with the front axle through a suspension mechanism, and the rear end of the frame is fixedly connected with the middle part of the rear axle; the suspension mechanism comprises a first hinged seat arranged at the lower end of the frame, a second hinged seat arranged on the front axle and hinged to the first hinged seat, and shock absorbers symmetrically arranged on two sides of the first hinged seat, wherein the upper end of each shock absorber is hinged to the frame, and the lower end of each shock absorber is hinged to the front axle. Adopt above-mentioned structure for the front axle can do the micro-rotation round articulated department, and the impact force that transmits the frame in the unevenness road surface is gone through the bumper shock absorber buffering lawn mower, has reduced frame and grass cutting device's vibrations, guarantees the stationarity that the lawn mower went.
In a preferred embodiment of the present invention, the plurality of cutters are uniformly distributed on the frame, each cutter is rotatably connected to the frame through a rotating shaft, and the rotating shaft is connected to the driving mechanism. Through setting up a plurality of cutting knives, can increase the cutting area, improve weeding efficiency.
Furthermore, the number of the cutting knives is 3, the 3 cutting knives are uniformly arranged in a triangular shape, one cutting knife is arranged in the middle of the front axle, and the other two cutting knives are respectively arranged on two sides of the rear axle. The weed cutting device has the advantages that the existing space can be better utilized, a better cutting effect is achieved, the interference between the cutting knives is avoided, the cutting range of the mower is also ensured, and the weeds cannot be cut off due to the gap between the cutting knives is avoided.
Preferably, the lower end of the frame is also provided with a baffle plate for preventing weeds from splashing, and the periphery of the baffle plate vertically extends downwards. In the process of cutting weeds, the cut weeds can be driven to splash outwards due to the rotation of the cutting knife, and the splash of the weeds is effectively prevented by arranging the baffle.
In a preferred aspect of the present invention, the driving mechanism includes an engine, a clutch, and a synchronous transmission assembly disposed on the frame; the synchronous transmission assembly comprises belt wheels arranged on the rotating shaft and a transmission belt arranged between the belt wheels, the input end of the clutch is connected with the engine, and the output end of the clutch is connected with one of the rotating shafts. By adopting the structure, the clutch is driven by the engine to rotate, one of the rotating shafts is driven to move, and all the rotating shafts are driven to synchronously rotate under the drive of the belt wheel and the transmission belt, so that each cutting knife is driven to simultaneously rotate, and the purpose of cutting off weeds is achieved.
According to a preferable scheme of the invention, the number of the walking power mechanisms is two, the two groups of walking power mechanisms are respectively arranged at two ends of the rear axle, and each group of walking power mechanisms comprises a servo motor arranged on the rear axle, a worm and gear reducer and an output shaft arranged on the walking wheels; the input end of the worm gear and worm reducer is connected with the main shaft of the servo motor, and the output end of the worm gear and worm reducer is connected with the output shaft. Through two sets of walking power unit drive rear axle both ends walking wheel respectively, realize the walking of lawn mower, specific working process is: the servo motor drives the worm gear and worm reducer to drive the output shaft to rotate, and further drive the travelling wheels to rotate.
In a preferred aspect of the present invention, the lawn mower further includes a wireless control device disposed at a rear end of the frame; the wireless control device comprises a control box, a main control board, a motor driver, a radio control module and a remote controller, wherein the main control board, the motor driver, the radio control module and the remote controller are arranged in the control box, the motor driver is fixedly connected with the main control board, the radio control module is connected with the main control board, and the radio control module is connected with the remote controller through a radio signal. Through setting up above-mentioned structure, the lawn mower can carry out remote control through the operative hand, implements the operation of mowing, convenient operation.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the height of the mowing device can be adjusted by arranging the height adjusting mechanism, the height of the mowing device can be flexibly adjusted through different heights of weeds in the weeding process, and the weeding operation is flexible and efficient.
2. According to the invention, the height adjustment of the mowing device can be realized by arranging the height adjusting mechanism, the height adjusting mechanism is suitable for weeding operation in complex terrains, the height of the mowing device can be flexibly adjusted according to the height fluctuation of the terrains, and efficient weeding operation is realized.
3. According to the invention, as the two groups of adjusting devices are distributed on two sides of the mowing device, the mowing device is supported through the four connecting rods, the gravity load borne by the electric push rod is reduced, the height adjustment of the mowing device is realized through the rotation of the driving connecting rods, the labor-saving effect is achieved by lengthening the force arm of the connecting rods, the electric push rod is prevented from being damaged due to overload operation in work, meanwhile, the electric push rod is prevented from being damaged due to fatigue in a non-working state, and the service life of the mowing machine is prolonged.
Drawings
Fig. 1-4 are schematic structural views of an embodiment of a wheel-type liftable cutterhead mower in the present invention, wherein fig. 1 is a left side view, fig. 2 is a bottom view, fig. 3 is a perspective view, and fig. 4 is a perspective view in another viewing angle direction.
Fig. 5 is a schematic three-dimensional structure view of the wheeled mower with the liftable cutterhead, which omits an engine and a clutch.
Fig. 6 is a schematic perspective view of the height adjusting device of the present invention.
Detailed Description
In order to make those skilled in the art understand the technical solutions of the present invention well, the following description of the present invention is provided with reference to the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
Referring to fig. 1 to 5, the wheeled mower with a liftable cutterhead in the embodiment includes a chassis walking device, a mowing device disposed on the chassis walking device, and a height adjusting device 1 disposed between the chassis walking device and the mowing device and used for adjusting the height of the mowing device from the ground; the height adjusting devices 1 are two groups, and the two groups of height adjusting devices 1 are respectively positioned on two sides of the mowing device.
Referring to fig. 1 to 5, the chassis walking device includes a front axle 2, a rear axle 3, a frame 4 disposed between the front axle 2 and the rear axle 3, a walking wheel 6 disposed on the front axle 2 and the rear axle 3, and a walking power mechanism 5 for providing power to the walking wheel 6; the front end of the frame 4 is connected with the front axle 2 through a suspension mechanism, and the rear end of the frame is fixedly connected with the middle part of the rear axle 3; the suspension mechanism comprises a first hinged seat 10 arranged at the lower end of the frame 4, a second hinged seat 11 arranged on the front axle 2 and hinged to the first hinged seat 10, and shock absorbers 12 symmetrically arranged on two sides of the first hinged seat 10, wherein the upper ends of the shock absorbers 12 are hinged to the frame 4, and the lower ends of the shock absorbers are hinged to the front axle 2. By adopting the structure, the front axle 2 can rotate slightly around the hinged part, the impact force transmitted to the frame 4 by the mower running on uneven road surfaces is buffered by the shock absorber 12, the vibration of the frame 4 and the mower is reduced, and the running stability of the mower is ensured.
Referring to fig. 1 to 5, the two groups of walking power mechanisms 5 are provided, the two groups of walking power mechanisms 5 are respectively arranged at two ends of the rear axle 3, and each group of walking power mechanisms 5 comprises a servo motor 5-1 arranged on the rear axle 3, a worm and gear reducer 5-2 and an output shaft arranged on the walking wheel 6; the input end of the worm gear and worm reducer 5-2 is connected with the main shaft of the servo motor 5-1, and the output end of the worm gear and worm reducer is connected with the output shaft. Through two sets of walking power unit 5 drive 3 both ends walking wheels 6 of rear axle respectively, realize the walking of lawn mower, specific working process is: the servo motor 5-1 drives the worm gear reducer 5-2, so as to drive the output shaft to rotate, and further drive the travelling wheel 6 to rotate.
Referring to fig. 1 to 5, the mowing device comprises a frame 7, a cutting knife 8 arranged below the frame 7 and used for cutting off weeds, and a driving mechanism 9 used for driving the cutting knife 8 to rotate; the cutting knives 8 are multiple and evenly distributed on the rack 7, each cutting knife 8 is rotatably connected to the rack 7 through a rotating shaft 13, and the rotating shaft 13 is connected with the driving mechanism 9. Through setting up a plurality of cutting knives 8, can increase the cutting area, improve weeding efficiency.
Referring to fig. 1-5, the number of the cutters 8 is 3, the 3 cutters 8 are uniformly arranged in a triangular shape, one cutter 8 is arranged at the middle part close to the front axle 2, and the other two cutters 8 are respectively arranged at the two sides close to the rear axle 3. Its advantage lies in, can be better utilize current space, reach better cutting effect, avoided the interference between the cutting knife 8, also guarantee the cutting scope of lawn mower, avoided having the clearance between the cutting knife 8 and can not amputate weeds.
Referring to fig. 1-5, the lower end of the frame 7 is further provided with a baffle 14 for preventing weeds from splashing, and the periphery of the baffle 14 extends vertically downwards. During the process of cutting weeds, the cut weeds are driven to splash outwards by the rotation of the cutting knife 8, and the splash of the weeds is effectively prevented by arranging the baffle plate 14.
Referring to fig. 1-5, the driving mechanism 9 includes an engine 9-1, a clutch and a synchronous transmission assembly provided on the frame 7; the synchronous transmission assembly comprises belt wheels 9-2 arranged on the rotating shaft 13 and a transmission belt 9-3 arranged between the belt wheels 9-2, the input end of the clutch is connected with the engine 9-1, and the output end of the clutch is connected with one rotating shaft 13. By adopting the structure, the engine 9-1 drives the clutch to rotate to drive one of the rotating shafts 13 to move, and all the rotating shafts 13 are driven to synchronously rotate under the drive of the belt pulley 9-2 and the transmission belt 9-3, so that each cutting knife 8 is driven to simultaneously rotate, and the purpose of cutting off weeds is achieved.
Referring to fig. 1-6, the height adjusting device 1 is a parallelogram link structure, and comprises two links 1-1, a connecting rod 1-2 and an electric push rod 1-3; the two connecting rods 1-1 are respectively arranged at the front end and the rear end of the rack 7 in parallel; each connecting rod 1-1 is provided with three hinge points, including a hinge point 1-11 at the upper end, a hinge point 1-12 at the middle part and a hinge point 1-13 at the lower end; the lower end hinge points 1-13 are hinged with the frame 7, and the middle hinge points 1-12 are hinged with the frame 4; the connecting rod 1-2 is arranged between the two connecting rods 1-1, and two ends of the connecting rod 1-2 are respectively hinged with two upper end hinge points 1-11; one end of the electric push rod 1-3 is hinged with the frame 4, and the other end is hinged with a hinged point 1-11 at the upper end of one of the connecting rods 1-1.
Referring to fig. 1-6, the height adjusting device 1 further includes an air stay bar 1-4 disposed between the connecting bar 1-2 and the frame 4, wherein one end of the air stay bar 1-4 is hinged to the middle of the connecting bar 1-2, and the other end is hinged to the frame 4. By arranging the air supporting rods 1-4, when the mowing device needs to be lifted, the electric push rod 1-3 needs to overcome the gravity of the mowing device to lift, and the connecting rod 1-2 is beneficial to the movement of the connecting rod 1-2 by virtue of the elasticity of the air supporting rods 1-4 in the forward movement process, so that the mowing device can be lifted smoothly; when the mowing device needs to be lowered, the electric push rod 1-3 is influenced by the gravity of the mowing device in the retraction process, so that the lowering speed is increased, partial gravity is overcome under the action of the elastic force of the supporting rod, the connecting rod 1-2 and the electric push rod 1-3 can stably run, and the lowering stability of the mowing device is guaranteed.
Referring to fig. 1-6, the three hinge points are distributed in a triangular shape, which is beneficial to reduce the pushing stroke of the electric push rod 1-3 to obtain a larger lifting distance of the mowing device, and meanwhile, the structure is more compact.
Referring to fig. 1-6, an extension part is arranged at the upper end of the connecting rod 1-1, and the extension part extends towards the direction of the electric push rod 1-3; and the extension part is provided with fourth hinge points 1-14, and the fourth hinge points 1-14 are hinged with the electric push rod 1-3. By adopting the structure, the pushing stroke of the electric push rod 1-3 can be further reduced, so that the mowing device obtains a larger lifting distance, and the height adjusting effect of the mowing device is improved.
Referring to fig. 1-5, the mower further comprises a wireless control device disposed at the rear end of the frame 4; the wireless control device comprises a control box, a main control board, a motor driver, a radio control module and a remote controller, wherein the main control board, the motor driver, the radio control module and the remote controller are arranged in the control box, the motor driver is fixedly connected with the main control board, the radio control module is connected with the main control board, and the radio control module is connected with the remote controller through a radio signal. Through setting up above-mentioned structure, the lawn mower can carry out remote control through the operative hand, implements the operation of mowing, convenient operation.
Referring to fig. 1-6, the working principle of the wheel-type liftable cutterhead mower is as follows:
when the mowing device works, the walking power mechanism 5 provides power for the walking wheel 6, so that the walking function of the mowing device is realized; the driving mechanism 9 drives the cutting knife 8 to rotate, so that weeds can be trimmed and cut. When the corresponding weeds are different in depth, the height of the mowing device can be adjusted through the height adjusting device 1, and the specific process is as follows:
when the mowing device needs to be lifted, electric push rods 1-3 positioned at two sides of the mowing device extend to push a connecting rod 1-1 to rotate on a frame 4 around a middle hinge point 1-12, so that a hinge point 1-11 at the upper end rotates downwards, a hinge point 1-13 at the lower end rotates upwards, under the action of the connecting rod 1-2, another connecting rod 1-1 is driven to rotate around a hinge point of the frame 4, the two connecting rods 1-1 rotate synchronously, a frame 7 is gradually lifted under the rotation of the hinge point 1-13 at the lower end, the height of a cutting knife 8 is adjusted, and the mowing device is lifted; when the mowing device needs to be lowered, the electric push rod 1-3 contracts reversely, so that the two connecting rods 1-1 rotate reversely around the middle hinge point 1-12 at the same time, and the mowing device is lowered; because the two groups of height adjusting devices 1 are distributed on two sides of the mowing device, the mowing device is supported by the four connecting rods 1-1, the gravity borne by the electric push rods 1-3 is reduced, the height adjustment of the mowing device is realized by driving the connecting rods 1-1 to rotate, the labor-saving effect is achieved by utilizing the force arms of the lengthened connecting rods 1-1, the electric push rods 1-3 cannot be damaged due to fatigue or overload operation during working, and the service life of the mowing machine is prolonged.
The present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents and are included in the scope of the present invention.
Claims (10)
1. A wheel type mower with a liftable cutterhead comprises a chassis walking device, a mowing device arranged on the chassis walking device and a height adjusting device arranged between the chassis walking device and the mowing device and used for adjusting the height of the mowing device away from the ground; the height adjusting devices are two groups, the two groups of height adjusting devices are respectively positioned at the left side and the right side of the mowing device, and the utility model is characterized in that,
the chassis walking device comprises a front axle, a rear axle, a frame arranged between the front axle and the rear axle, walking wheels arranged on the front axle and the rear axle and a walking power mechanism for providing power for the walking wheels; one end of the frame is connected with the front axle, and the other end of the frame is connected with the rear axle;
the mowing device comprises a rack, a cutting knife arranged below the rack and used for cutting off weeds, and a driving mechanism used for driving the cutting knife to rotate;
the height adjusting device is of a parallelogram connecting rod structure and comprises two connecting rods, a connecting rod and an electric push rod; the two connecting rods are respectively arranged at the front end and the rear end of the rack in parallel; each connecting rod is provided with three hinge points, including an upper end hinge point at the upper end, a middle hinge point at the middle part and a lower end hinge point at the lower end; the lower end hinge point is hinged with the frame, and the middle hinge point is hinged with the frame; the connecting rods are arranged between the two connecting rods, and two ends of each connecting rod are respectively hinged with two upper end hinge points; one end of the electric push rod is hinged with the frame, and the other end of the electric push rod is hinged with a hinged point at the upper end of one of the connecting rods.
2. The wheel type liftable cutterhead mower according to claim 1, wherein the height adjusting device further comprises an air stay rod arranged between the connecting rod and the frame, one end of the air stay rod is hinged with the middle of the connecting rod, and the other end of the air stay rod is hinged with the frame.
3. The wheeled liftable cutterhead mower of claim 2, wherein three of said hinge points are triangularly disposed.
4. The wheeled mower with liftable cutterhead according to claim 3, wherein an extension part is arranged at the upper end of the connecting rod, and the extension part extends towards the direction of the electric push rod; and a fourth hinge point is arranged on the extension part and is hinged with the electric push rod.
5. The wheel type liftable cutterhead mower according to claim 4, wherein the front end of the frame is connected with the front axle through a suspension mechanism, and the rear end of the frame is fixedly connected with the middle part of the rear axle; the suspension mechanism comprises a first hinged seat arranged at the lower end of the frame, a second hinged seat arranged on the front axle and hinged to the first hinged seat, and shock absorbers symmetrically arranged on two sides of the first hinged seat, wherein the upper end of each shock absorber is hinged to the frame, and the lower end of each shock absorber is hinged to the front axle.
6. The wheeled mower with liftable cutterhead according to claim 5, wherein the cutting knives are distributed uniformly on the frame, each cutting knife is rotatably connected to the frame through a rotating shaft, and the rotating shaft is connected to the driving mechanism.
7. The wheel type liftable cutterhead mower according to claim 6, wherein the number of the cutters is 3, the 3 cutters are uniformly arranged in a triangular shape, one cutter is arranged near the middle of the front axle, and the other two cutters are respectively arranged near the two sides of the rear axle.
8. The wheeled mower with liftable cutterhead according to claim 7, wherein the driving mechanism includes an engine, a clutch and a synchronous transmission assembly arranged on the frame; the synchronous transmission assembly comprises belt wheels arranged on the rotating shaft and a transmission belt arranged between the belt wheels, the input end of the clutch is connected with the engine, and the output end of the clutch is connected with one of the rotating shafts.
9. The wheel type liftable cutterhead mower according to claim 8, wherein the number of the walking power mechanisms is two, the two groups of walking power mechanisms are respectively arranged at two ends of the rear axle, and each group of walking power mechanisms comprises a servo motor arranged on the rear axle, a worm and gear reducer and an output shaft arranged on the walking wheel; the input end of the worm gear and worm reducer is connected with the main shaft of the servo motor, and the output end of the worm gear and worm reducer is connected with the output shaft.
10. The wheeled liftable cutterhead mower of any one of claims 1 to 9, wherein said mower further includes a wireless control unit disposed at the rear end of said frame; the wireless control device comprises a control box, a main control board, a motor driver, a radio control module and a remote controller, wherein the main control board, the motor driver, the radio control module and the remote controller are arranged in the control box, the motor driver is fixedly connected with the main control board, the radio control module is connected with the main control board, and the radio control module is connected with the remote controller through a radio signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010179429.7A CN111183786A (en) | 2020-03-13 | 2020-03-13 | Wheel type liftable cutter head mower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010179429.7A CN111183786A (en) | 2020-03-13 | 2020-03-13 | Wheel type liftable cutter head mower |
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| Publication Number | Publication Date |
|---|---|
| CN111183786A true CN111183786A (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010179429.7A Pending CN111183786A (en) | 2020-03-13 | 2020-03-13 | Wheel type liftable cutter head mower |
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| CN (1) | CN111183786A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111937567A (en) * | 2020-07-17 | 2020-11-17 | 广西科技大学 | Hybrid power mower |
| CN112106511A (en) * | 2020-10-23 | 2020-12-22 | 山东农业大学 | Hydraulic walking mowing robot |
| CN113068505A (en) * | 2021-03-22 | 2021-07-06 | 苏州大学 | Grass cutter |
| CN113068517A (en) * | 2021-03-31 | 2021-07-06 | 苏州市双马机电有限公司 | Mowing vehicle and connection structure of cutter head suspension arm and cutter head on mowing vehicle |
| CN113108011A (en) * | 2021-04-09 | 2021-07-13 | 梅里科技(广州)有限公司 | Combined shock-absorbing device for mower |
| CN113099825A (en) * | 2021-04-09 | 2021-07-13 | 梅里科技(广州)有限公司 | Cutter body device of lawn mower |
| CN114467506A (en) * | 2022-03-21 | 2022-05-13 | 宁波市华代科技有限公司 | Intelligence chassis liftable lawn mower |
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2020
- 2020-03-13 CN CN202010179429.7A patent/CN111183786A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111937567A (en) * | 2020-07-17 | 2020-11-17 | 广西科技大学 | Hybrid power mower |
| CN112106511A (en) * | 2020-10-23 | 2020-12-22 | 山东农业大学 | Hydraulic walking mowing robot |
| CN113068505A (en) * | 2021-03-22 | 2021-07-06 | 苏州大学 | Grass cutter |
| CN113068517A (en) * | 2021-03-31 | 2021-07-06 | 苏州市双马机电有限公司 | Mowing vehicle and connection structure of cutter head suspension arm and cutter head on mowing vehicle |
| CN113108011A (en) * | 2021-04-09 | 2021-07-13 | 梅里科技(广州)有限公司 | Combined shock-absorbing device for mower |
| CN113099825A (en) * | 2021-04-09 | 2021-07-13 | 梅里科技(广州)有限公司 | Cutter body device of lawn mower |
| CN113108011B (en) * | 2021-04-09 | 2022-03-11 | 梅里科技(广州)有限公司 | Combined shock-absorbing device for mower |
| CN114467506A (en) * | 2022-03-21 | 2022-05-13 | 宁波市华代科技有限公司 | Intelligence chassis liftable lawn mower |
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Country or region after: China Address after: Building 43, Zone A, Energy Conservation and Environmental Protection Innovation Park, No. 199, Hongwu Avenue, Tangqiao Town, Zhangjiagang City, Suzhou City, Jiangsu Province, 215600 Applicant after: Suzhou New Coordinates Intelligent Equipment Co.,Ltd. Address before: 255000 MEMS Industrial Park, 158 Zhongrun Avenue, high tech Zone, Zibo City, Shandong Province Applicant before: Shandong new coordinate Intelligent Equipment Co.,Ltd. Country or region before: China |
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