CN102577844B - Electric pruning device - Google Patents
Electric pruning device Download PDFInfo
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- CN102577844B CN102577844B CN2011100083424A CN201110008342A CN102577844B CN 102577844 B CN102577844 B CN 102577844B CN 2011100083424 A CN2011100083424 A CN 2011100083424A CN 201110008342 A CN201110008342 A CN 201110008342A CN 102577844 B CN102577844 B CN 102577844B
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Abstract
The invention relates to an electric pruning device, which comprises a longitudinal extension casing, a motor, a transmission mechanism, a first auxiliary part, a second auxiliary part and a containing space. The motor disposed inside the casing is used for providing rotational output. The transmission mechanism is connected with the motor. The first auxiliary part is driven by the transmission mechanism. The second auxiliary part is connected with the casing. The containing space for at least partially containing a work piece is reserved between the first auxiliary part and the second auxiliary part. At least one of the first auxiliary part and the auxiliary part is provided with a cutting blade. The transmission mechanism comprises a motion conversion mechanism which drives the first auxiliary part to move relative to the second auxiliary part so as to cut the work piece. The transmission mechanism further comprises a rotary impact mechanism. When load reaches a certain preset valve, the rotary impact mechanism converts rotational output of the motor into rotational impact output which is transmitted to the motion conversion mechanism. The transmission mechanism of the electric pruning device comprises the rotary impact mechanism, which is used for providing rotational impact output to the first auxiliary part to improve cutting ability.
Description
Technical field
The present invention relates to a kind of electric lopping device.
Background technology
At present, the structure of electric lopping device mainly utilizes two blades to do relatively reciprocating motion to shear, its effect is the branch of shearing trees, the branches and leaves of flower etc., compared to the pruner of manpower, has the advantages that to reduce working strength, increase work efficiency, improve work safety.As China Patent No., be 99213524.9 disclosed a kind of lopping shearss, it adopts ledger-plate and relative ledger-plate to make forward and backward reciprocating knife section formation and shears the edge of a knife, therefore the branch be sheared is difficult for from the edge of a knife, skidding off, moving, ledger-plate is in the rectilinear motion state while working simultaneously, can additionally not increase machine volume, be convenient to from grove, shearing single branch.
Yet, this pruning machine Shortcomings.The knife section of this kind pruning machine drives by the elastic force of spring, while shearing branch, need manual operation to promote knife section and overcome spring force to open the edge of a knife, and then utilize spring restoring force drive knife section to reset and carry out the branch shearing, this process operation trouble effort, labour intensity is large, the people is easy to fatigue, greatly affects operating efficiency.Can only shear more tiny branch, when running into the thicker branch of shearing, spring force is not enough to produce very high shearing force, causes shearing, and functional reliability is reduced greatly.Therefore market is in the urgent need to a kind of pruning machine with larger cutting power.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of electric lopping device with larger cutting power.
The present invention solves the technical scheme that the prior art problem adopts: a kind of electric lopping device comprises housing extending longitudinally; The motor that is positioned at housing and provides rotation to export; The transmission mechanism of connecting motor; The first auxiliary member by the transmission mechanism driving; The second auxiliary member be connected with housing; Between the first auxiliary member and the second auxiliary member, has the receiving space of accommodating at least partly workpiece, at least one in the first auxiliary member and the second auxiliary member is provided with cutting edge, transmission mechanism comprises that driving the first auxiliary member moves the movement conversion mechanism with cut workpiece relative to the second auxiliary member, wherein transmission mechanism also comprises rotary impact mechanism, when load reached the certain predetermined value, rotary impact mechanism was converted into rotary impact by the rotation of motor output and exports and pass to movement conversion mechanism.
Preferably, transmission mechanism comprises the jackshaft be connected with motor, and rotary impact mechanism comprises the active impact block of the passive impact block that connects movement conversion mechanism and relative passive impact block rotation, initiatively impact block relatively jackshaft move axially.
Preferably, initiatively impact block is placed on jackshaft, and initiatively impact block has the first shock step, and passive impact block has second and clashes into step, second clashes into step clashes into step butt or disengagement with first, thereby makes active impact block and passive impact block relative to static or rotate.
Preferably, jackshaft is provided with the first groove; Initiatively impact block is provided with the second groove, and rotary impact mechanism also comprises that the while partly is contained in the rolling member of the first groove and the second groove and is connected to the bias piece between active impact block and housing.
Preferably, the second auxiliary member is fixedly connected with housing.
Preferably, the first auxiliary member and the second auxiliary member form the shearing edge of a knife with opening, and the direction of opening is vertical with direction extending longitudinally.
Preferably, cutting edge is arranged on the second auxiliary member.
Preferably, cutting edge is arranged on the first auxiliary member, and cutting edge and direction extending longitudinally have angle of inclination.
Preferably, on movement conversion mechanism comprises the screw rod that connects rotary impact mechanism and is socketed in screw rod and be fixedly connected with the nut of the first auxiliary member, screw rod drives nut and moves axially.
Preferably, electric lopping device comprises the telescopic prolongation handle of being located at the housing rear end.
Preferably, electric lopping device has dismountable lithium battery bag, and the voltage of described lithium battery bag is 10.8 volts.
Preferably, the diameter range of workpiece is 0 to 95 millimeter.
Compared with prior art, beneficial effect of the present invention is: the electric lopping device transmission mechanism comprises rotary impact mechanism can provide rotary impact to export to the first auxiliary member, thereby under identical dynamic condition, the cutting power of electric lopping device improves greatly.
The accompanying drawing explanation
Above-described purpose of the present invention, technical scheme and beneficial effect can, by the following detailed description that can realize specific embodiments of the invention, be described and clearly acquisition simultaneously by reference to the accompanying drawings.
Identical label in accompanying drawing and specification and symbol are for representing element identical or that be equal to.
Fig. 1 is the schematic diagram of the electric lopping device of the first embodiment of the present invention.
Fig. 2 is the schematic diagram of the holding part pivotable of electric lopping device shown in Figure 1.
Fig. 3 is the schematic diagram after electric lopping device shown in Figure 1 removes partial shell.
Fig. 4 is that electric lopping device shown in Figure 1 removes after partial shell the schematic diagram that demonstrates rotary impact mechanism.
Fig. 5 is the schematic diagram that demonstrates movement conversion mechanism that the housing front end of electric lopping device shown in Figure 1 removes partial shell.
Fig. 6 is that the cutting edge of the electric lopping device of the second embodiment of the present invention is installed on the schematic diagram on the second auxiliary member.
Fig. 7 is the schematic diagram of the first auxiliary member of electric lopping device time cutting branch that has cutting edge.
Fig. 8 is the schematic diagram of the second auxiliary member of electric lopping device time cutting branch that has cutting edge.
Fig. 9 is the schematic diagram that the first auxiliary member of the electric lopping device of the third embodiment of the present invention rotates relative to the second auxiliary member.
Figure 10 is the schematic diagram that the first auxiliary member of the electric lopping device of the fourth embodiment of the present invention rotates relative to the second auxiliary member.
Figure 11 is the schematic diagram with the electric lopping device that extends handle of the fifth embodiment of the present invention.
1, electric lopping device 2, housing 3, motor
4, transmission mechanism 5, the shearing edge of a knife 6, rotary impact mechanism
7, movement conversion mechanism 8, the second auxiliary member 9, the first auxiliary member
10, cutting edge 12, holding part 13, switch
14, extend handle 15, rotating shaft 21, front end
22, rear end 23, block 31, motor drive shaft
32, power brick 33, planet pinion group 34, planetary gear
35, central gear 61, jackshaft 62, active impact block
63, passive impact block 64, elastic component 65a, cam path
65b, cam path 66, steel ball 67a, first clash into step
67b, second clashes into step 71, screw rod 72, nut
73, bracing frame 74, guiding groove 75, retaining element
76, guide rail 77, pull bar 78, the first pivotal axis
79, the second pivotal axis 80, position stop piece 81, opening
82, blocking arm 83, accommodation section 84, sizing hook
91, holding tank 92, end-tooth 93, tooth bar
94, gear 101, cutting part 141, the first extension tube
142, the second extension tube 143, coupling assembling 144, lock tube
145, adapter sleeve 611, axis 621, the first side
622, the second side 623, fixture 641, first end
642, the second end 711, external screw thread 721, nut sleeve
723, extension block 724, guide finger G, gravity
Embodiment
Be illustrated in figure 1 the electric lopping device 1 of one embodiment of the invention.The housing 2 that electric lopping device 1 extends along a longitudinally.Housing 2 has along the front end 21 of longitudinally and rear end 22.In the rear end 22 of housing 2, be provided with the holding part 12 for gripping.Holding part 12 can be set to relative housing 2 and turn an angle.As shown in Figure 2, be provided with rotating shaft 15 between housing 2 and holding part 12, holding part 12 can be rotated around this rotating shaft 15.The angle that rotate the holding part 12 of comparative optimization is 0 to 90 degree.Like this, be convenient to shear the branch in corner.The rear end 22 of housing 2 also is provided with switch 13 be used to starting electric lopping device 1.Certainly, the position of switch 13 can be located at any one position that is suitable for operating of housing 2, as long as the position handled easily person starting switch 13 that switch 13 arranges.Shear the front end 21 that the edge of a knife 5 is positioned at housing 2, be mainly used in placing the workpiece such as branch that will cut, and keep the workpiece that will cut relatively fixing in cutting process.
Please refer to Fig. 3 and shown in Figure 4, in the inside of housing 2, have the motor 3 that rotation output is provided.Motor 3 can be that d.c. motor can be also alternating current motor.Motor 3 can be rotated in the forward and counter-rotate.In the present embodiment, switch 13 also has forward or the counter-rotating that two-way controlling organization can be controlled motor 3.Front end 21 at housing 2 has the edge of a knife 5 of shearing, shears the edge of a knife 5 and is arranged at outside housing 2.Motor 3 has motor drive shaft 31, for outputting power.For keeping the small volume of electric lopping device 1 integral body, adopting power brick 32 is motor power supplying, and power brick 32 is arranged at the rear end 22 of housing 2 simultaneously.Power brick 32 is removably disposed on housing 2.In the present embodiment, power brick 32 preferably adopts the lithium battery bag, and the relatively environmental protection of lithium battery bag, had increasing application scenario.While through the voltage that experiment showed, power brick 32, being 7 volts to 18 volts, power brick 32 both can provide enough power to shear branch to pruning machine 1, to such an extent as to can not make again the too large operability that reduces of the volume of power brick 32 own.In optimum embodiment, the voltage of power brick 32 is 10.8 volts.Certainly in the present embodiment, use power brick 32 power supplies, can also on electric lopping device 1, be connected to ac power supply by installing wire, now motor 3 adopts the alternating current motor.
As shown in Figure 3 and Figure 5, at the interior connecting motor axle 31 of housing 2, are transmission mechanisms 4.Transmission mechanism 4 mainly plays transferring power, the transmission of power of motor 3 generations is given and sheared the edge of a knife 5, thereby cutting is positioned at the workpiece of shear knife mouth 5.Shearing the edge of a knife 5 is mainly formed by the second auxiliary member 8 and the first auxiliary member 9.Between the first auxiliary member 9 and the second auxiliary member 8, has the receiving space of accommodating at least partly workpiece.The second auxiliary member 8 is positioned at the front end 21 of housing 2 and is fixedly connected with housing 2.The second auxiliary member 8 can with housing 2 Integral designs, also can by the common fixed form such as bolt, be connected with housing 2.On the cutaway view of vertical direction, the second auxiliary member 8 is roughly the semi-closed structure of U-shaped shape as shown in Figure 5, and a side of this semi-closed structure has opening 81 and is communicated with the external world, and other three sides have the blocking arm 82 that plays the partition effect with the external world.The blocking arm 82 of opening 81 and part is positioned at outside housing 2.The direction of opening 81 is perpendicular to the lengthwise bearing of trend.In the present embodiment, opening 81 is positioned at the lower end of the second auxiliary member 8.In other embodiments, opening 81 can be positioned at the upper end of the second auxiliary member 8.The central authorities of the second auxiliary member 8 are the accommodation section 83 that can hold the hollow of object to be cut.And on the direction of vertical this section, accommodation section 83 is communicated to the external world, makes workpiece partly pass accommodation section 83 along the direction perpendicular to this section.In addition in the present embodiment, on the blocking arm 82 of the second auxiliary member 8, be provided with sizing hook 84.This sizing hook 84 is horizontal at opening 81 places, can prevent that so the thick branch that must exceed cutting power from entering accommodation section 83, thereby avoid branch to be stuck in the second auxiliary member 8.As shown in Figure 3, power brick 32, transmission mechanism 4, the first auxiliary member 9 and the second auxiliary member 8 arrange along same axis 611 successively.
As shown in Figure 3 and Figure 5, transmission mechanism 4 one end connecting motors 3, the other end connects the shearing edge of a knife 5 that is positioned at front end 21.Transmission mechanism 4 mainly comprises rotary impact mechanism 6 and movement conversion mechanism 7.The transmission mechanism 4 that comprises rotary impact mechanism 6, movement conversion mechanism 7 with motor 3 all accommodate with same housing 2 in.Rotary impact mechanism 6 and movement conversion mechanism 7 are arranged in order along longitudinally, and rotary impact mechanism 6 one ends are connected with motor 3, and the other end is connected with movement conversion mechanism 7.When load reached the certain predetermined value, rotary impact mechanism 6 was converted into rotary impact by the rotation of motor 3 output and exports and pass to movement conversion mechanism 7.One end of movement conversion mechanism 7 is connected with rotary impact mechanism 6, and the other end is connected with the first auxiliary member 9.Movement conversion mechanism 7 drives the first auxiliary member 9 and moves to cut described workpiece relative to described the second auxiliary member 8.
As shown in Figure 5, transmission mechanism 4 comprises the jackshaft 61 extended along longitudinally.Axis 611 directions of jackshaft 61 are consistent with the lengthwise bearing of trend.Jackshaft 61 is connected with motor drive shaft 31 by planet pinion group 33, and the planet pinion group 33 here is power drive mechanism common in this area, generally includes planetary gear 34 and central gear 35 and changes whereby gearratio.Repeat no more herein.Rotary impact mechanism 6 comprises initiatively impact block 62.Initiatively impact block 62 is socketed on jackshaft 61 actively, and initiatively impact block 62 can produce circumferential rotation and move axially with respect to jackshaft 61.Initiatively impact block 62 have the first side 621 and 622, the first sides 621, the second side and the second side 622 each other back to.And the first side 621 and the second side 622 are approximately perpendicular to axis 611.In addition, on jackshaft 61, also be socketed with the elastic component 64 as bias piece.In the present embodiment, elastic component 64 is springs.It can certainly be other forms of elastic component.The first end 641 of elastic component 64 abuts on active impact block 62.642, second end of elastic component 64 abuts on block 23.Block 23 is fixing is connected in housing 2, and the power that provides support is to elastic component 64.Initiatively the first side 621 of impact block 62 is provided with fixture 623 for the fixing first end 641 of elastic component 64.Elastic component 64 is located between housing 2 and active impact block 62.Elastic component 64 has the state of compression, and elastic component 64 is provided along the elastic-restoring force of the axial and circumferential of jackshaft 61, promotes initiatively impact block 62.Initiatively impact block 62 is formed with cam path 65a near on the surface of jackshaft 61, on the surface of jackshaft 61, also is formed with cam path 65b, and cam path 65a and cam path 65b are corresponding to be arranged.Rolling member 66 is arranged between cam path 65a and cam path 65b, and rolling member 66 can rotate on axis 611 directions.The rolling member 66 here is steel ball.Certainly those skilled in the art will be appreciated that rolling member can be also other forms.Initiatively the second side 622 of impact block 62 is provided with the first shock step 67a.First clashes into step 67a around the circumferential setting of axis 611, and the first shock step 67a protrudes from the second side 622.
As shown in Figure 3 and Figure 5, rotary impact mechanism 6 also comprises passive impact block 63.Passive impact block 63 connects movement conversion mechanism 7.Passive impact block 63 can produce relative rotation with active impact block 62.Passive impact block 63 is provided with second and clashes into step 67b, the second shock step 67b is corresponding with the first shock step 67a on active impact block 62, and both are butt mutually, thereby make transmission of power to movement conversion mechanism 7 by the gearing of active impact block 62 and passive impact block 63.
When operating, press starting switch 13, motor 3 produces rotation output and drives jackshaft 61 rotations, and jackshaft 61 drives initiatively impact block 62 by rolling member 66 and rotates with jackshaft 61.Initiatively first on impact block 62 clashes into second on step 67a and passive impact block 63 and clashes into the mutual butt of step 67b, thereby makes active impact block 62 relative static with passive impact block 63.Initiatively the passive impact block 63 of impact block 62 drive rotates together.And then transmission of power is to movement conversion mechanism 7.When running into larger resistance, cutting make load become large and when reaching certain preset value, passive impact block 63 rotates initiatively impact block 62 is rotated relative to passive impact block 63, and can't drive passive impact block 63 rotations.Initiatively impact block 62 611 moves to motor 3 vertically, thereby when making the first shock step 67a and second clash into step 67b disengagement, active impact block 62 further pushes elastic component 64.Initiatively impact block 62 is thrown off with passive impact block 63, and passive impact block 63 loses the restriction to active impact block 62.Under the effect of the elastic-restoring force of elastic component 64, initiatively impact block 62 moves axially to passive impact block 63 rapidly, because rolling member 66 moves in cam path 65a, 65b, make initiatively impact block 62 rotatablely move around the relatively passive impact block 63 of axis 611 simultaneously.Initiatively 62 pairs of passive impact blocks 63 of impact block produce rotary impact thus, and the moment of rotary impact can produce larger dynamic torque to overcome the resistant load acted on passive impact block 63.In a word, rotary impact mechanism 6 is converted to rotary impact by the rotation of motor 3 output and exports and pass to movement conversion mechanism 7.
Because rotary impact mechanism 6 can provide rotary impact output, make electric lopping device 1 that larger cutting force can be provided, thereby improved cutting power.As can be known according to the experimental data provided as table 1, under identical power initial conditions, the cutting power with electric lopping device 1 of rotary impact mechanism 6 has had significant raising than the cutting power of the electric lopping device 1 that does not have beater mechanism 6.
Table 1
Therefore according to upper table, but the maximum gauge scope of electric lopping device 1 cut workpiece at 0 to 95 millimeter, when power brick 32 voltages of installing when electric lopping device 1 are 10.8 volts, but the maximum gauge scope of cut workpiece is at 0 to 65 millimeter.The maximum gauge scope of the cut workpiece of electric lopping device 1 is not less than 10 millimeters.
As shown in Figure 3 and Figure 6, movement conversion mechanism 7 is between rotary impact mechanism 6 and the second auxiliary member 8.Movement conversion mechanism 7 mainly comprises screw rod 71 and nut 72.Movement conversion mechanism 7 and motor 3 all are positioned at housing 2.In the present embodiment, screw rod 71 extends axially, and the passive impact block 63 of end connection, and the kinetic force of passive impact block 63 is delivered on screw rod 71.Screw rod 71 can be subjected to the driving of rotary impact mechanism 6 and rotate around axis 611, moves axially but can't produce.Screw rod 71 is supported on bracing frame 73.Bracing frame 73 roughly extends along axis 611, and bracing frame 73 can be one-body molded with housing 2, also can by common fixed forms such as screws, be fixedly connected with housing 2.Bracing frame 73 is provided with the guiding groove 74 extended along axis 611, and screw rod 71 is arranged in this guiding groove 74, and the length of guiding groove 74 is not less than the length of screw rod 71.The guiding groove 74 here can be form of grooves, can be also the groove form.One end of guiding groove 74 is provided with retaining element 75, and retaining element 75 can be screwed on bracing frame 73, also can be shaped on bracing frame 73.This retaining element 75 passes to hold screw rod 71 ringwise, and in retaining element 75, is provided with ball bearing and supports screw rod 71.Screw rod 71 is provided with external screw thread 711.In addition, on bracing frame 73, also be provided with parallel with the bearing of trend of guiding groove 74 guide rail 76, guide rail 76 can be also the form of groove or groove.The second auxiliary member 8 also can screw etc. common fixed form be fixedly mounted on bracing frame 73.The quantity of guide rail 76 is 2 and the symmetrical both sides that are distributed in guiding groove 74.Certainly, the present invention does not limit the use guide rail, and the device that other forms play the guiding role also is fine, for example guide groove.
On nut 72, have nut sleeve 721 and be socketed on screw rod 71, be provided with internal thread in nut sleeve 721, the intermeshing nut 72 that makes of internal thread and external screw thread 711 can move along screw rod 71.Thereby rotatablely moving of screw rod 71 is converted to nut 72 moving axially along screw rod 71.On nut 72, also be provided with extension block 723.The quantity of extension block 723 is 2, is symmetricly set on the radially both sides of nut sleeve 721.And be provided with guide finger 724 on each extension block 723.Certainly guide finger 724 also can be set directly on nut sleeve 721, and the quantity of guide finger 724 is not limit.Guide finger 724 just in time can be inserted in guide rail 76, and moves along the bearing of trend of guide rail 76, thereby nut 72 is moved axially along guide rail 76.Guide finger 724 and guide rail 76 form guider.Guider also comprises other elements.As shown in Figure 5, on nut 72, also be fixedly connected with the first auxiliary member 9.The first auxiliary member 9 is fixedly connected with the extension block 723 on nut 72 by common fixtures such as screws, make the first auxiliary member 9 with nut 72 along traveling priority.The first auxiliary member 9 roughly extends and is subject to the driving of motor 3 and transmission mechanism 4 along longitudinally.But the first auxiliary member 9 towards rear end and a side of motor 3 be provided with the holding tank 91 of holding portion screw rod 71.The bearing of trend of holding tank 91 is consistent with the bearing of trend of screw rod 71.When the first auxiliary member 9 moved with nut 72, when especially nut 72 moved near retaining element 75, screw rod 71 can extend into holding tank 91 from the edge of the first auxiliary member 9.Like this, by movement conversion mechanism 7, the output of the rotary impact of rotary impact mechanism 6 is converted into to the straight reciprocating motion of relative the second auxiliary member 8 of the first auxiliary member 9.The second auxiliary member 8 is fixedly mounted on bracing frame 73, and forms and can hold the through hole that the first auxiliary member 9 passes between the second auxiliary member 8 and bracing frame 73.When nut 72, move on screw rod 71 when the second auxiliary member 8, the first auxiliary member 9 passes this through hole and enters the accommodation section 83 of the second auxiliary member 8.In addition, be respectively equipped with position stop piece 80 on the blocking arm 82 of the second auxiliary member 8 and on retaining element 75, limiting nut 72 between two position stop pieces 80.80 pairs of nuts 72 of position stop piece are played and limit the effect that it moves, and nut 72 can not broken away from from screw rod 71.
Certainly movement conversion mechanism 7 can also have other forms with shearing coordinating of the edge of a knife 5.As shown in figure 10, shearing the edge of a knife 5 is mainly formed by the second auxiliary member 8 and the first auxiliary member 9.The second auxiliary member 8 fixing being arranged on housing 2 or bracing frame 73.The second auxiliary member 8 is connected by the first pivotal axis 78 with the first auxiliary member 9, makes the first auxiliary member 9 with the second auxiliary member 8, to produce relative rotation around the first pivotal axis 78.The first auxiliary member 9 and the second auxiliary member 8 form the structure of similar scissors.In addition, on the first auxiliary member 9, also be provided with the second pivotal axis 79.Movement conversion mechanism 7 comprises screw rod 71, nut 72 and pull bar 77.The setting of screw rod 71 and nut 72 and embodiment before are similar, have just no longer described at this.One end attaching nut 72 of pull bar 77, the other end couples together connecting rod 77 and the first auxiliary member 9 by the second pivotal axis 79.During work, nut 72 is along screw rod 71 rectilinear motions, and pushing drawing rod 77.Pull bar 77 pulls the first auxiliary member 9 by the second pivotal axis 79, thereby makes the first auxiliary member 9 rotate around the first pivotal axis 78.
Another embodiment that movement conversion mechanism 7 as shown in figure 11 coordinates with the shearing edge of a knife 5.Shear the edge of a knife 5 and have equally the second auxiliary member 8 and the first auxiliary member 9.Between the second auxiliary member 8 and the first auxiliary member 9, connect by the first pivotal axis 78.The first auxiliary member 9 is provided with end-tooth 92.Movement conversion mechanism 7 comprises screw rod 71, nut 72, tooth bar 93 and gear 94.Tooth bar 93 is fixedly attached on nut 72, and extends along axis 611.The peripheral surface of tooth bar 93 has helical tooth, and meshes with gear 94.Simultaneously gear 94 again with the first auxiliary member 9 on end-tooth 92 mesh.During work, nut 72 is along screw rod 71 rectilinear motions, and promotion tooth bar 93 traveling priorities.The traveling priority of tooth bar 93 drives the gear 94 be engaged with and rotates, and gear 94 drives the first auxiliary member 9 again and rotates around the first pivotal axis 78.As can be known by Figure 10 and embodiment shown in Figure 11, by movement conversion mechanism 7, the rotation of motor 3 output is converted into to the first auxiliary member 9 rotatablely moving with respect to the second auxiliary member 8.
As shown in Figure 6, also be provided with cutting edge 10 on the shearing edge of a knife 5 be comprised of the second auxiliary member 8 and the first auxiliary member 9, cutting edge 10 is for the cut substrate workpiece.Cutting edge 10 can be installed on the second auxiliary member 8 or on the first auxiliary member 9, or is provided with simultaneously cutting edge 10 on the second auxiliary member 8 and the first auxiliary member 9.In the present embodiment, cutting edge 10 is arranged on the first auxiliary member 9.Cutting edge 10 can be one-body molded with the first auxiliary member 9 or be fixedly connected with.For reaching better cutting effect, the cutting part 101 on cutting edge 10 has certain angle of inclination with longitudinally.Particularly, the sizing hook on the second auxiliary member 8 84 of cutting part 101 extends.In other embodiment, as shown in Figure 7, on the blocking arm that is arranged on the second auxiliary member 8 82 that cutting edge 10 is fixed, and cutting part 101 is towards the first auxiliary member 9.As 8 and shown in Figure 9, the benefit that cutting edge 10 is set like this is: because work habit cutting branch is all to pressing down by electric lopping device 1, the gravity G of branch can be pressed on the first auxiliary member 9 in cutting process, thereby avoids gravity pressure on cutting edge 10, easily to cause the wearing and tearing of cutting edge 10.
During normal operation, object is put into and sheared the edge of a knife 5, then Push switch 13 control motor 3 forwards are rotated around axis 611 with drive screw 71, screw rod 71 drives the nut 72 be engaged with and moves along axis 611 forward end 21, thereby the first auxiliary member 9 is moved to the second auxiliary member 8, making to be positioned at the object of shearing the edge of a knife 5 is clamped, and the cutting edge 10 that is sheared the edge of a knife 5 cuts, due to the existence of rotary impact mechanism 6, make power that motor 3 provides can overcome larger resistance object is cut like a cork.After cutting, switch 13 is controlled motor 3 counter-rotatings again, nut 72 22 is moved to the back-end along axis 611, thereby make the first auxiliary member 9 to away from the second auxiliary member 8 directions, moving, and opening 81 is reopened.Now repeat again just can carry out the shearing work of a new round after an aforesaid operations process.
For shearing the branch that is in eminence, especially the place that reaches of staff, can install telescopic prolongation handle 14 in the housing rear end 22 of electric lopping device 1.As shown in figure 12, extend handle 14 and comprise the first extension tube 141, the second extension tube 142 and the coupling assembling 143 between the first extension tube 141 and the second extension tube 142.The upper end of the first extension tube 141 can be threaded with the rear end 22 of housing 2.Coupling assembling 143 comprises the lock tube 144 be arranged in the second extension tube 142 upper ends, and is arranged on the adapter sleeve 145 of the first extension tube 141 lower ends.Lock tube 144 is connected by thread forms with adapter sleeve 145.Lock tube 144 has the bellmouth structure that radius reduces gradually, and when lock tube 144 is tightened along screw thread, lock tube 144 extruding adapter sleeves 145 are with fixing by the first extension tube 141 and the second extension tube 142.In addition, for ease of operation, be provided with switch 13 and detachable battery bag 32 at the lower end of the second extension tube 142.
In a word, the present invention is not limited to the specific embodiment structure of lifting, and the structure of conceiving based on the present invention all belongs to protection domain of the present invention.
Claims (9)
1. an electric lopping device, comprise housing extending longitudinally, the motor that is positioned at described housing and provides rotation to export, the transmission mechanism that connects described motor, the first auxiliary member by described transmission mechanism driving, the second auxiliary member be connected with described housing, between described the first auxiliary member and described the second auxiliary member, has the receiving space of accommodating at least partly workpiece, at least one in described the first auxiliary member and described the second auxiliary member is provided with cutting edge, described transmission mechanism comprises that driving described the first auxiliary member moves to cut the movement conversion mechanism of described workpiece relative to described the second auxiliary member, it is characterized in that: described transmission mechanism also comprises rotary impact mechanism, when load reaches the certain predetermined value, described rotary impact mechanism is converted into rotary impact by the rotation of described motor output and exports and pass to described movement conversion mechanism, described transmission mechanism comprises the jackshaft be connected with described motor, described rotary impact mechanism comprises the passive impact block that connects described movement conversion mechanism and the active impact block of relative described passive impact block rotation, described active impact block can move axially by relatively described jackshaft.
2. electric lopping device according to claim 1, it is characterized in that: described active impact block is placed on described jackshaft, described active impact block has first and clashes into step, described passive impact block has second and clashes into step, described second clashes into step and described the first shock step butt or disengagement, thereby makes described active impact block and described passive impact block relative to static or rotate.
3. electric lopping device according to claim 2, it is characterized in that: described jackshaft is provided with the first groove; Described active impact block is provided with the second groove, and described rotary impact mechanism also comprises and partly is contained in the rolling member of described the first groove and described the second groove and is connected to the bias piece between described active impact block and described housing simultaneously.
4. electric lopping device according to claim 1 is characterized in that: described the first auxiliary member and described the second auxiliary member form the shearing edge of a knife with opening, and the direction of described opening is vertical with described direction extending longitudinally.
5. electric lopping device according to claim 1, it is characterized in that: described cutting edge is arranged on described the second auxiliary member.
6. electric lopping device according to claim 1, it is characterized in that: described cutting edge is arranged on described the first auxiliary member, and described cutting edge and described direction extending longitudinally have angle of inclination.
7. electric lopping device according to claim 1, it is characterized in that: on described movement conversion mechanism comprises the screw rod that connects described rotary impact mechanism and is socketed in described screw rod and be fixedly connected with the nut of described the first auxiliary member, the described nut of described screw rod drive moves axially.
8. electric lopping device according to claim 1, it is characterized in that: described electric lopping device comprises the telescopic prolongation handle of being located at described housing rear end.
9. electric lopping device according to claim 1, it is characterized in that: the diameter range of described workpiece is 0 to 95 millimeter.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100083424A CN102577844B (en) | 2011-01-14 | 2011-01-14 | Electric pruning device |
| PCT/CN2012/070358 WO2012095028A1 (en) | 2011-01-14 | 2012-01-14 | Electric pruner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100083424A CN102577844B (en) | 2011-01-14 | 2011-01-14 | Electric pruning device |
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| Publication Number | Publication Date |
|---|---|
| CN102577844A CN102577844A (en) | 2012-07-18 |
| CN102577844B true CN102577844B (en) | 2013-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100083424A Active CN102577844B (en) | 2011-01-14 | 2011-01-14 | Electric pruning device |
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| CN (1) | CN102577844B (en) |
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| FR3037839B1 (en) * | 2015-06-24 | 2017-12-08 | Pellenc Sa | ELECTROPORTATIVE TOOL WITH EPICYCLOIDAL REDUCER |
| CN105475004B (en) * | 2016-01-31 | 2018-02-23 | 卢谱帆 | A kind of electric fruit tree pruning machine |
| CN114145146A (en) * | 2020-09-08 | 2022-03-08 | 苏州吉锂智能科技有限公司 | Built-in translation tool bit formula electric flower and tree is cut |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4707917A (en) * | 1986-01-23 | 1987-11-24 | Westover Dwight G | Methods and apparatus for cutting rod-like objects |
| JP2001340023A (en) * | 2000-05-31 | 2001-12-11 | Nishigaki Kogyo Kk | Electrically-powered high twig shear |
| CN2896850Y (en) * | 2006-02-14 | 2007-05-09 | 陈寅 | Direct-current pruner |
| CN101653082A (en) * | 2009-09-11 | 2010-02-24 | 李爱良 | Charge type brush cutter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008048669A (en) * | 2006-08-24 | 2008-03-06 | Max Co Ltd | Electric pruning scissors |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4707917A (en) * | 1986-01-23 | 1987-11-24 | Westover Dwight G | Methods and apparatus for cutting rod-like objects |
| JP2001340023A (en) * | 2000-05-31 | 2001-12-11 | Nishigaki Kogyo Kk | Electrically-powered high twig shear |
| CN2896850Y (en) * | 2006-02-14 | 2007-05-09 | 陈寅 | Direct-current pruner |
| CN101653082A (en) * | 2009-09-11 | 2010-02-24 | 李爱良 | Charge type brush cutter |
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| CN102577844A (en) | 2012-07-18 |
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