CN105191521A - Electric mini tiller - Google Patents
Electric mini tiller Download PDFInfo
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- CN105191521A CN105191521A CN201510643578.3A CN201510643578A CN105191521A CN 105191521 A CN105191521 A CN 105191521A CN 201510643578 A CN201510643578 A CN 201510643578A CN 105191521 A CN105191521 A CN 105191521A
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Abstract
The invention relates to the field of mini tillers, in particular to an electric mini tiller. The electric mini tiller comprises a rack, a driving mechanism, a walking mechanism, tilling cutter assemblies, a handrail assembly and a transmission mechanism. The driving mechanism, the walking mechanism, the tilling cutter assemblies, the handrail assembly and the transmission mechanism are arranged on the rack, and the transmission mechanism is connected with the driving mechanism, the walking mechanism and the tilling cutter assemblies. Each tilling cutter assembly comprises a cutter shaft, a cutter head and a blade, wherein the cutter head is fixedly connected to the middle of the cutter shaft, the blade is detachably connected to the cutter head, one end of the cutter shaft is a tubular connecting section, the other end of the cutter shaft is a shrinking tube section capable of being inserted into the connecting section of another cutter shaft, and connecting holes are formed in the shrinking tube section and the connecting section of the cutter shaft in a matched mode and are through in the radial direction. An insertion pin is detachably connected to the cutter shafts and can be inserted into the connecting holes and makes the two cutter shafts fixedly connected. The tilling cutter assemblies are convenient to detach, the multiple tilling cutter assemblies can be connected through the cutter shafts, and according to widths of detailed tilling environments, the number of the tilling cutter assemblies connected with one another is convenient to select.
Description
Technical field
The present invention relates to mini-size tillage machine field, be specifically related to a kind of electric micro-cultivator.
Background technology
Mini-size tillage machine is the agricultural ploughing machine after simplifying, and mini-size tillage machine has little, the lightweight and easy to operate feature of volume compared with large-scale agricultural ploughing machine, and therefore, mini-size tillage machine is specifically designed to the narrow area such as mountain area and hills etc. that agricultural ploughing machine is not easy to operate.Mini-size tillage machine freely can be exercised in field, user-friendly and deposit, and eliminates the worry that large-scale farm machinery cannot enter mountain area field, is the optimal selection that vast farmers consumer substitutes ox and ploughs.
Mini-size tillage machine generally comprises frame, the driving mechanism be arranged in frame, running gear.Plough cutter assembly and arm assembly, driving mechanism drives running gear and the work of cultivated cutter assembly by transmission mechanism.
The miniaturization of mini-size tillage machine and convenience are the research directions of emphasis always, but the cultivated cutter assembly of current mini-size tillage machine and structure all more complicated of gearshift of being connected with transmission mechanism, volume is comparatively large, cannot adapt to miniaturized trend.
Existing cultivated cutter assembly mainly comprises cutter shaft, cutterhead and blade, generally that blade is fixed on cutterhead, cutterhead is being fixed on cutter shaft, cutter shaft is connected with the output shaft of actuating unit, cutter shaft is along with output shaft rotation, thus allow blade rotation realize breaing up of soil, large-scale farming machine unitary design still continued to use by the cutter shaft of present design, although unitary design is conducive to transmission, but be not easy to disassembled for transport, more be unfavorable for reducing of volume, and once axle upper part there is damage or buckling phenomenon appears in shaft portion, need holoaxial to change, cause the use cost of mini-size tillage machine higher the most at last.
Existing gearshift comprises gearbox, shifting shaft, gear arm and gearshift clutch, shifting shaft is arranged on gearbox, shifting shaft first end is connected with gear arm upper end, gear arm lower end coordinates with gearshift clutch, shifting shaft second end is provided with shift block, gearbox below shift block is provided with fixed block, and fixed block and shift block are connected gear-shifting inhaul cable away from one end of shifting shaft, and drag-line to the active force of shift block upwards.The gearshift used unit of existing mini-size tillage machine is more, and volume is comparatively large, is unfavorable for the volume of the entirety reducing mini-size tillage machine, and existing gearshift inconvenient operation.
In addition, the driving mechanism of existing mini-size tillage machine adopts small diesel engine or gasoline engine as power usually, is unfavorable for the sustainable development of environment and resources; The frame of existing mini-size tillage machine and arm assembly are generally one-body molded or fixing Integral welded structures, are inconvenient to dismantle in packed and transported process, because its size is comparatively large, brings certain difficulty, add shipment and delivery cost to packed and transported.
Summary of the invention
The invention is intended to provide a kind of electric micro-cultivator, to solve the cultivated cutter assembly inconvenience dismounting of existing mini-size tillage machine, the problem that volume is larger.
For overcoming the above problems, take following scheme:
Scheme one: electric micro-cultivator, comprises frame, is arranged on the driving mechanism in frame, running gear, ploughs cutter assembly, arm assembly and connects the transmission mechanism of driving mechanism and running gear and cultivated cutter assembly; The blade that described cultivated cutter assembly comprises cutter shaft, is fixed in the cutterhead in the middle part of cutter shaft and is detachably connected on cutterhead, one end of described cutter shaft is the linkage section of tubulose, the other end of cutter shaft is to insert the draw section in another cutter shaft linkage section, the draw section of cutter shaft and linkage section is provided with and matches and the connecting hole that runs through of radial direction; Described cutter shaft is removably connected with latch, and described latch can insert described connecting hole and be fixedly connected with two cutter shafts.
Operation principle:
The linkage section of two cutter shafts is connected by latch with draw section, selects the number of connection of cutter shaft according to the size of mini-size tillage machine arable area, the cutterhead quantity be fixed on cutter shaft is increased simultaneously, and then change width and the size of mini-size tillage machine arable area.
Beneficial effect:
1. described in, plough the blade that cutter assembly comprises cutter shaft, is fixed in the cutterhead in the middle part of cutter shaft and is detachably connected on cutterhead; Conveniently along with the increase successively of cutter shaft can increase cutterhead quantity, increase arable land simultaneously; Blade is detachably connected on cutterhead, and the convenient replacing to wearing blade, extends service time of the present invention.
2. one end of cutter shaft described in is the linkage section of tubulose, and the other end of cutter shaft is to insert the draw section in another cutter shaft linkage section, the draw section of cutter shaft and linkage section is provided with and matches and the connecting hole that runs through of radial direction; Convenient be together in series by multiple cutter shaft, because cutter shaft is connected with cutterhead, increase in the distance increasing cutter shaft the width and area that mini-size tillage machine ploughs at every turn, convenient geographical environment of ploughing according to reality selects the quantity connecting cutter shaft simultaneously.And make the length of single cutter shaft shorter, make the small volume of single cutter shaft and cutterhead above thereof, the miniaturization being conducive to mini-size tillage machine is used, and is conducive to the disassembled for transport of the mini-size tillage machine using multiple cutter shaft simultaneously.
3. cutter shaft described in is removably connected with latch, and described latch can insert described connecting hole and be fixedly connected with two cutter shafts.Two cutter shafts are connected by latch, easy to use, simple to operate, and make to be connected firmly by connecting hole connection one_to_one corresponding.
4. the present invention makes the cutter shaft of cultivated cutter assembly can be made up of multiple cutter shaft series winding, can according to the mini-size tillage machine model size used, whole cultivated knife structure is increased or reduces the cutter shaft quantity of its composition, what make to be formed completes mating of cultivated cutter assembly and mini-size tillage machine, such cutter shaft just can make standard body, to produce in batches, reduce production cost.
Scheme two: at the enterprising one-step optimization in the basis of scheme one, described cutterhead is provided with multiple groove, the installation portion of described blade is connected in groove, and described cutterhead and blade adopt at least one rivet to be fixed connection.
Be stuck in groove by whole for the installation portion of blade, make the whole installation portion of blade all as localization part, improve the original problem using two Bolt to position easily to loosen; Because reeded existence, only need a positioning element allowing cutterhead and blade fit together.Because the both sides of groove by the installation portion of blade are blocked, limit the rotation of blade on cutterhead face, as long as therefore use at least one fixing point just can realize the fixing of blade, and this programme adopts rivet to be fixed, because rivet two ends are fixing structure, ensure that the stability of blade when cultivating.
Scheme three: at the enterprising one-step optimization in the basis of scheme one, described cutter head center is provided with axis hole, taper hole is led in described axis hole one end, and cutterhead realizes welding by filling full weld in axis hole.
Be welded and fixed as non-removable fixed form, add the stationarity of cutterhead and cutter shaft.
Scheme four: at the enterprising one-step optimization in the basis of scheme one, described latch comprises bearing pin and U-shaped part, one end of described U-shaped part and bearing pin is hinged, the other end of bearing pin can with the clamping of U-shaped part, be provided with the handheld terminal for gripping for people at U-shaped part away from the one end with hinge place.
One end of U-shaped part and bearing pin is hinged, makes U-shaped part and bearing pin be no longer distinct independent parts, convenient in use, not easily loses.The other end of bearing pin can with the clamping of U-shaped part, when bearing pin and U-shaped part one end are fixed, only need the closed connection that other end clamping can be completed bearing pin and U-shaped part, and then the cultivated cutter be trapped among between bearing pin and U-shaped part is firmly connected with axle with the axle sleeve of mini-size tillage machine, cultivated cutter is firmly connected with mini-size tillage machine.Being provided with the handheld terminal for gripping for people at U-shaped part away from the one end with hinge place, facilitating staff to put forth effort on handheld terminal, making to open with more laborsaving during locking latch
Scheme five: at the enterprising one-step optimization in the basis of scheme one, described arm assembly comprises the armrest seat and arm-rest frame that removably connect with frame, described arm-rest frame comprises left arm-rest frame and right arm-rest frame, described left arm-rest frame sticks together with the lower end of right arm-rest frame and upper end is separated formation " Y " shape structure, the upper end of described arm-rest frame is holding part, is connected with cross bar between described left arm-rest frame and the holding part of right arm-rest frame; Lower end and the described armrest seat of described left arm-rest frame and right arm-rest frame removably connect.
Lower end and the described armrest seat of described left arm-rest frame and right arm-rest frame removably connect, and are conveniently disassembled from armrest seat by arm-rest frame.Described arm-rest frame comprises left arm-rest frame and right arm-rest frame, described left arm-rest frame sticks together with the lower end of right arm-rest frame and upper end is separated formation " Y " shape structure, the upper end of described arm-rest frame is holding part, is connected with cross bar between described left arm-rest frame and the holding part of right arm-rest frame; Conveniently left arm-rest frame, right arm-rest frame and cross bar are all disassembled packing and transporting, effectively reduce the size of all parts, saved space, reduced cost of transportation.Arm-rest frame is " Y " shape structure, and the upper end of left arm-rest frame and right arm-rest frame is holding part, facilitates staff to grip and facilitates the stressed and power transmission of arm-rest frame.Cross bar is connected to the holding part of left arm-rest frame and right arm-rest frame, conveniently stablizes arm-rest frame, makes arm-rest frame keep balance.
Scheme six: at the enterprising one-step optimization in the basis of scheme one, described running gear comprises the wheel shaft be connected with frame, be positioned at wheel shaft two ends and two road wheels be connected with wheel shaft, and cutter is ploughed in the damping be hinged on wheel shaft; Described damping is ploughed cutter and is provided with the depth adjustment hole that multiple damping adjusting ploughs the cutter degree of depth.
Be conducive to selecting different depth adjustment holes to select damping to plough cutter according to the concrete condition of soil and insert the degree of depth in soil, pace and farming dynamics size when effectively can regulate farming, increase the scope of application of the present invention, the operation different to user is selected.And use road wheel, be conducive to pushing the present invention when not farming.
Scheme seven: at the enterprising one-step optimization in the basis of scheme two, the depth of groove of described cutterhead is more than or equal to the installation portion thickness of blade.Make the installation portion of blade all be trapped in groove like this, even if blade is subject to the soil reaction force larger to it, groove also can ensure that blade can not skid off outside groove, ensure that the reliability of mini-size tillage machine operation.
Scheme eight: at the enterprising one-step optimization in the basis of scheme four, described bearing pin and described U-shaped part hinged place are the flat board having pin-and-hole, and U-shaped part is hinged on bearing pin through pin-and-hole, and U-shaped part can, around pin-and-hole 90 degree rotation, facilitate U-shaped part and bearing pin clamping to fasten.
Scheme nine: at the enterprising one-step optimization in the basis of scheme five, described driving mechanism comprises motor and the batteries for motor energy supply; Motor speed high and low shift handle controlling organization is provided with between described motor and arm assembly; Described motor speed high and low shift handle controlling organization, the control circuit board comprising the clutch lever be arranged on arm-rest frame, be connected to bracing wire between frame and clutch lever, be fixed on the base plate in frame and be positioned at below base plate; Described control circuit board is connected with electric electromechanics and can controls the rotating speed of electromotor; Described control circuit board is provided with multiple microswitch for speed stage conversion; The rotary body that described base plate is provided with fixed axis and can rotates around fixed axis; Described microswitch to be connected on base plate and to abut with rotary body; Described rotary body is the cylinder that can rotate around fixed axis, and the radial side of rotary body is provided with the flange can stirring microswitch; It one end that described bracing wire is connected with frame is the crotch with extension spring; Described guy winding is on rotary body.
By batteries for the invention provides the energy, batteries is charged, batteries can repeatedly be used, use electrical energy drive clean environment firendly and sustainable.Pull bracing wire by clutch lever, rotary body is rotated in bracing wire, makes rotary body stir microswitch to select the switching of rotating speed high and low shift, and working method is simple, convenient operation.Because the base plate at rotary body and microswitch place is setting up and down, effectively save space, what be conducive to mini-size tillage machine manufactures more miniaturized, is convenient to mini-size tillage machine and fully plays the little advantage of its volume in mountain area.One end that bracing wire is connected with frame is the crotch with extension spring, facilitates crotch to catch on the frame of mini-size tillage machine, facilitate bracing wire after pulling rotary body to rotate by extension spring Rapid reset.
Scheme ten: at the enterprising one-step optimization in the basis of scheme nine, the driven pulley that described transmission mechanism is comprised belt, the driving wheel be connected with motor shaft and is connected by belt with driving wheel; Described follower shaft is connected with gearbox; The output shaft of described gearbox connects the cutter shaft ploughing cutter assembly.
Be conducive to motor to be rotated by belt drive gearbox, rotating speed after change is delivered on the cutter shaft of cultivated cutter assembly by gearbox, select different rotary speeies when being conducive to the different soil of cultivated cutter assembly farming, more select to user, effectively increase the scope of application of the present invention.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is the explosive view of Fig. 1;
Fig. 3 is the structural blast figure of the cultivated cutter assembly of the embodiment of the present invention;
Fig. 4 is the structural representation that multiple cultivated cutter assembly is fixedly connected with;
Fig. 5 is the structural representation of the latch of the embodiment of the present invention;
Fig. 6 is the connection diagram of latch and cultivated cutter assembly;
Fig. 7 is the structural representation of the arm assembly of the embodiment of the present invention;
Fig. 8 is the structural representation of the motor speed high and low shift handle controlling organization of the embodiment of the present invention.
Embodiment
Below by embodiment, the present invention is further detailed explanation:
Accompanying drawing 1 in Figure of description and the Reference numeral of accompanying drawing 2 comprise: frame 1, cultivated cutter assembly 2, running gear 3, arm assembly 4, large frame 5, mud guard 6, shell 7, batteries 8, wheel shaft 9, road wheel 10, damping plough cutter 11, depth adjustment hole 12, belt 13, motor 14, driving wheel 15, driven pulley 16, gearbox 17.
As shown in Figure 1, electric micro-cultivator, comprises frame 1, is arranged on the driving mechanism in frame 1, running gear 3, ploughs cutter assembly 2, arm assembly 4 and connects the transmission mechanism of driving mechanism and running gear 3 and cultivated cutter assembly 2.
As shown in Figure 2, frame 1 comprise large frame 5 connected vertically with armrest assembly, with large frame 5 vertical be connected and the mud guard 6 be positioned at above large frame 5 and to be positioned at above mud guard 6 and with the shell 7 of mud guard 6 clamping; Shell 7 has the groove for placing batteries 8, groove is coated with transparent lid completely, and one end of lid is hinged on shell 7, and the other end of lid is connected on shell 7.Facilitate picking and placeing of batteries 8, meanwhile, conveniently check in groove whether batteries 8 is installed, easy to use.
Running gear 3 comprises the wheel shaft 9 be connected with large frame 5, be positioned at wheel shaft 9 two ends and two road wheels 10 be connected with wheel shaft 9, and cutter 11 is ploughed in the damping be hinged on wheel shaft 9; Damping is ploughed on cutter 11 and is had the depth adjustment hole 12 that multiple damping adjusting ploughs cutter 11 degree of depth.Wheel shaft 9 is hinged with a connector, damping can be ploughed cutter 11 with bolt through depth adjustment hole 12 and be fixed on connector.Be conducive to selecting different depth adjustment holes 12 to select damping to plough cutter 11 according to the concrete condition of soil and insert the degree of depth in soil, pace and farming dynamics size when effectively can regulate farming, increase the scope of application of the present invention, the operation different to user is selected.And use road wheel 10, be conducive to pushing the present invention when not farming.
Driving mechanism comprises motor 14 and the batteries 8 for motor 14 energy supply.The driven pulley 16 that transmission mechanism is comprised belt 13, the driving wheel 15 be connected with motor 14 axle and is connected by belt 13 with driving wheel 15; Driven pulley 16 axle is connected with gearbox 17; The chain that gearbox 17 comprises the first speed-changing chain be connected with driven pulley 16 axle, the second speed-changing chain be connected with the cutter shaft of cultivated cutter assembly 2 and is connected with the first speed-changing chain and the second speed-changing chain, the second sprocket wheel is connected with the output shaft of gearbox 17.The output shaft of gearbox 17 connects the cutter shaft ploughing cutter assembly 2.
Reference numeral in accompanying drawing 3 and accompanying drawing 4 is: cutter shaft 18, cutterhead 19, blade 20, linkage section 21, draw section 22, first connecting hole 23, second connecting hole 24, groove 25, axis hole 26, rivet 27.
As shown in Figure 3, plough cutter assembly, it comprises cutter shaft 18, cutterhead 19 and blade 20, cutter shaft 18 is divided into linkage section 21 and the draw section 22 of tubulose, draw section 22 adopts draw technique to be diminished by the caliber of cutter shaft 18 1 end, finally will ensure that draw section 22 can be inserted in linkage section 21, the draw section 22 of cutter shaft 18 is provided with the first connecting hole 23, and linkage section 21 offers the second connecting hole 24 matched with the first connecting hole 23; Cutterhead 19 center is provided with axis hole 26, and the diameter of axis hole 26 one end is greater than linkage section 21 external diameter of cutter shaft 18, and axis hole 26 side is provided with the bracing ring mated with linkage section 21, and cutterhead 19 realizes and welding between cutter shaft 18 by filling full weld at axis hole 26; Cutterhead 19 is provided with four grooves 25, groove 25 divides equally setting with axis hole 26 circumference, the installation portion of blade 20 is connected in groove 25, the quantity of groove 25 can be ploughed state according to reality, wait during fabrication and groove 25 is arranged to two, six etc., the operate portions bending direction of adjacent two blades 20 becomes inverse state to be arranged in groove 25, and groove 25 degree of depth of cutterhead 19 is more than or equal to the installation portion thickness of blade 20, and groove 25 adopts impact style directly to become in cutterhead 19 upper punch swaging; Be connected by a rivet 27 between blade 20 with cutterhead 19; Blade 20 and cutterhead 19 adopt and rush riveting assembly technology and carry out affixed.
In the application, the installation position of blade does not have one section of blade, and the operate portions of blade is one section containing blade.
As shown in Figure 4, the draw section of a cutter shaft 18 is inserted in the linkage section of another cutter shaft 18, then insert in the first connecting hole 23 of draw section and the second connecting hole 24 of linkage section by latch 5, realize being fixedly connected with of two cutter shafts 18, the quantity of connection can do adaptability increase and decrease according to the model of mini-size tillage machine.
The Reference numeral of accompanying drawing 5 and accompanying drawing 6 is: cutter shaft 18, bearing pin 28, U-shaped part 29, bearing pin top 29, handheld terminal 30.
As shown in Figure 5, lock bolt axle 28 is cylindrical, and bearing pin top is del, clamping U-shaped part 29 on bearing pin top, U-shaped part 29 bends to by a cylindrical thin excellent doubling globoidal structure that there is space centre, and this space is the pin hole connected and fixed with bearing pin 28 and U-shaped part 29.Below U-shaped part 29 with the position of bearing pin 28 clamping, U-shaped part is formed to having a downwarp and grips the handheld terminal 30 of exerting all one's strength for people.By firmly breaking handheld terminal 30 into two with one's hands or fastening handheld terminal 30 is opened or locking latch, facilitate staff holding operation.
As shown in Figure 6, when latch being used for fixing two cutter shafts of cultivated cutter assembly of mini-size tillage machine, gap at the bottom of the bearing pin of the tapered body of bearing pin 28 and in the middle of U-shaped part 29 is fastened through behind two corresponding holes by lock bolt axle 28, two iron wire limits of U-shaped part 29 are extruded at the bottom of bearing pin, article two, the extrusion of iron wire limit makes bearing pin inject gap, because iron wire has certain elasticity, restore to the original state again under the effect at elastic force after the distortion of two iron wire limits and the groove clamping bearing pin side by lock clasp.U-shaped part 29 be semicircular structure, its inner surface mates with the external surface shape of the cutter shaft of cultivated cutter assembly, U-shaped part 29 is fitted completely with the cutter shaft of cultivated cutter assembly, when the cutter shaft 18 of cultivated cutter assembly is socketed on another cutter shaft 18, latch can post and fix two cutter shafts 18 completely, and when mini-size tillage machine operation, latch can not make bearing pin front and back in U-shaped part shrug one's shoulders, impact along with the motion of cultivated cutter, reduce the wearing and tearing of U-shaped part, reduce the loss of mini-size tillage machine tractive force.
Reference numeral in accompanying drawing 7 is: armrest seat 31, holding part 32, external member 33, left arm-rest frame 34, right arm-rest frame 35, cross bar 36.
As shown in Figure 7, the arm-rest frame assembly arm-rest frame that comprises armrest seat 31 bolted with mini-size tillage machine body and be connected with armrest seat 31 screw.Arm-rest frame comprises left arm-rest frame 34 and right arm-rest frame 35, and the lower end of left arm-rest frame 34 and right arm-rest frame 35 sticks together, and external member 33 wraps the junction of left arm-rest frame 34 and right arm-rest frame 35 and armrest seat 31.The upper end of left arm-rest frame 34 and right arm-rest frame 35 separately forms " Y " shape structure, and the upper end of left arm-rest frame 34 and right arm-rest frame 35 is holding part 32.Between left arm-rest frame 34 and the holding part of right arm-rest frame 35, screw connects cross bar 36.As shown in Figure 2, the closing end of arm-rest frame and left arm-rest frame 34 have the first different adjustment hole of height and position and the second adjustment hole with on the lower end of right arm-rest frame 35 and the link position of armrest seat 31.The position of corresponding first adjustment hole of armrest seat 31 and the second adjustment hole has the first installing hole and the second installing hole, by being connected screw come through different adjustment holes and armrest seat 31 whole height of adjustable handrail frame.
Reference numeral in Fig. 8 is: bracing wire 37, rotary body 38, extension spring 39, crotch 40, alignment pin, fixed axis 41, locating slot 42, base plate 43, first flange 44, second flange 45, first microswitch 46, second microswitch 47.
As shown in Figure 8, one end of bracing wire 37 is the clutch lever that another termination of extension spring 39 is arranged on arm-rest frame, and one end away from bracing wire 37 of extension spring 39 is crotch 40, and crotch 40 is used for the frame caught on mini-size tillage machine.Bracing wire 37 solderless wrapped connection between clutch lever and mini-size tillage machine is on rotary body 38.Rotary body 38 is connected with fixed axis 41 axle through base plate 43, and around fixed axis 41 rotary motion.On the side of rotary body 38, circumference has locating slot 42, and bracing wire 37 is wrapped in locating slot 42.Rotary body 38 has groove at an angle on the side at locating slot about 42 two ends, corresponding to upper and lower two grooves, the radial position of rotary body 38 forms two flanges, and is the first flange 44 above locating slot 42, and is the second flange 45 below locating slot 42.First flange 44 and the second flange 45 are dislocatedly distributed, and make two flanges can follow rotary body 38 when different length is left behind in bracing wire 37 and turn to different positions.
First microswitch 46 and the second microswitch 47 are close to rotary body 38 and are fixed on base plate 43, and the first microswitch 46 is arranged above and below with the second microswitch 47 and corresponding with the upper-lower position of the first flange 44 and the second flange 45.Pull bracing wire 37, rotary body 38 carries out the rotation of different angles according to the different length of bracing wire 37, after turning to certain angle, the first flange 44 is stirred the first microswitch 46 and is made the first microswitch 46, all keep pressing state in the arc range of the first flange 44, now selected and opened the speed stage that the first microswitch 46 connects.After continuation bracing wire 37 continues to pull and makes rotary body 38 be rotated further certain angle, second flange 45 stirs the second microswitch 47, in the arc range of the second flange 45, the second microswitch 47 all keeps pressing state, the speed stage that now the second microswitch 47 connects is unlocked, and realizes gear shift operation.When unclamping bracing wire 37 and unclamping, rotary body 38 rotates backward, and gear shift operation is contrary with order above.
Steady pin 5 to be fixed on base plate 43 and to be positioned at locating slot 42, and bracing wire 37 is wrapped on rotary body 38 by locating slot 42 through the hole on steady pin 5 again.First microswitch 46 and the second microswitch 47 are fixed on base plate 43 by two locating dowels.Fixed axis 41 is connected with base plate 43 through the locating hole on base plate 43.With the base plate 43 of locating hole close positions on be welded with limited block, limited block is used for limiting the rotating range of rotary body 38, makes microswitch can not by error starting.
Motor speed high and low shift handle controlling organization is provided with between motor and arm assembly; Motor speed high and low shift handle controlling organization, the control circuit board comprising the clutch lever be arranged on arm-rest frame, be connected to bracing wire between frame and clutch lever, be fixed on the base plate in frame and be positioned at below base plate; Control circuit board is connected with electric electromechanics and can controls the rotating speed of electromotor; Control circuit board is provided with multiple microswitch for speed stage conversion; The rotary body that base plate is provided with fixed axis and can rotates around fixed axis; Microswitch to be connected on base plate and to abut with rotary body; Rotary body is the cylinder that can rotate around fixed axis, and the radial side of rotary body is provided with the flange can stirring microswitch; It one end that bracing wire is connected with frame is the crotch with extension spring; Guy winding is on rotary body.
Above is only embodiments of the invention, in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this, one skilled in the art know the applying date or priority date before all ordinary technical knowledge of technical field that the present invention belongs to, prior aries all in this field can be known, and the ability of normal experiment means before there is this date of application, under the enlightenment that one skilled in the art can provide in the application, improve in conjunction with self-ability and implement this programme, some typical known features or known method should not become the obstacle that one skilled in the art implement the application.Should be understood that; for a person skilled in the art, under the prerequisite not departing from structure of the present invention, some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.The protection domain that this application claims should be as the criterion with the content of its claim, and the embodiment in specification etc. record the content that may be used for explaining claim.
Claims (10)
1. electric micro-cultivator, comprises frame, the driving mechanism be arranged in frame, running gear, ploughs cutter assembly, arm assembly and connect the transmission mechanism of driving mechanism and running gear and cultivated cutter assembly; It is characterized in that: the blade that described cultivated cutter assembly comprises cutter shaft, is fixed in the cutterhead in the middle part of cutter shaft and is detachably connected on cutterhead, one end of described cutter shaft is the linkage section of tubulose, the other end of cutter shaft is to insert the draw section in another cutter shaft linkage section, the draw section of cutter shaft and linkage section is provided with and matches and the connecting hole that runs through of radial direction; Described cutter shaft is removably connected with latch, and described latch can insert described connecting hole and be fixedly connected with two cutter shafts.
2. electric micro-cultivator according to claim 1, is characterized in that: described cutterhead is provided with multiple groove, and the installation portion of described blade is connected in groove, and described cutterhead and blade adopt at least one rivet to be fixed connection.
3. electric micro-cultivator according to claim 1, is characterized in that: described cutter head center is provided with axis hole, and taper hole is led in described axis hole one end, and cutterhead realizes welding by filling full weld in axis hole.
4. electric micro-cultivator according to claim 1, it is characterized in that: described latch comprises bearing pin and U-shaped part, one end of described U-shaped part and bearing pin is hinged, the other end of bearing pin can with the clamping of U-shaped part, be provided with the handheld terminal for gripping for people at U-shaped part away from the one end with hinge place.
5. electric micro-cultivator according to claim 1, it is characterized in that: described arm assembly comprises the armrest seat and arm-rest frame that removably connect with frame, described arm-rest frame comprises left arm-rest frame and right arm-rest frame, described left arm-rest frame sticks together with the lower end of right arm-rest frame and upper end is separated formation " Y " shape structure, the upper end of described arm-rest frame is holding part, is connected with cross bar between described left arm-rest frame and the holding part of right arm-rest frame; Lower end and the described armrest seat of described left arm-rest frame and right arm-rest frame removably connect.
6. electric micro-cultivator according to claim 1, is characterized in that: described running gear comprises the wheel shaft be connected with frame, be positioned at wheel shaft two ends and two road wheels be connected with wheel shaft, and cutter is ploughed in the damping be hinged on wheel shaft; Described damping is ploughed cutter and is provided with the depth adjustment hole that multiple damping adjusting ploughs the cutter degree of depth.
7. electric micro-cultivator according to claim 2, is characterized in that: the depth of groove of described cutterhead is more than or equal to the installation portion thickness of blade.
8. electric micro-cultivator according to claim 4, is characterized in that: described bearing pin and described U-shaped part hinged place are the flat board having pin-and-hole, and U-shaped part is hinged on bearing pin through pin-and-hole, and U-shaped part can around pin-and-hole 90 degree rotation.
9. electric micro-cultivator according to claim 5, is characterized in that: described driving mechanism comprises motor and the batteries for motor energy supply; Motor speed high and low shift handle controlling organization is provided with between described motor and arm assembly; Described motor speed high and low shift handle controlling organization, the control circuit board comprising the clutch lever be arranged on arm-rest frame, be connected to bracing wire between frame and clutch lever, be fixed on the base plate in frame and be positioned at below base plate; Described control circuit board is connected with electric electromechanics and can controls the rotating speed of electromotor; Described control circuit board is provided with multiple microswitch for speed stage conversion; The rotary body that described base plate is provided with fixed axis and can rotates around fixed axis; Described microswitch to be connected on base plate and to abut with rotary body; Described rotary body is the cylinder that can rotate around fixed axis, and the radial side of rotary body is provided with the flange can stirring microswitch; It one end that described bracing wire is connected with frame is the crotch with extension spring; Described guy winding is on rotary body.
10. electric micro-cultivator according to claim 9, is characterized in that: the driven pulley that described transmission mechanism is comprised belt, the driving wheel be connected with motor shaft and is connected by belt with driving wheel; Described follower shaft is connected with gearbox; The output shaft of described gearbox connects the cutter shaft ploughing cutter assembly.
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| CN201510643578.3A CN105191521B (en) | 2015-10-08 | 2015-10-08 | Electric micro-cultivator |
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| CN201510643578.3A CN105191521B (en) | 2015-10-08 | 2015-10-08 | Electric micro-cultivator |
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| CN105191521B (en) | 2017-06-16 |
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