CN102232331A - Self-driven mower - Google Patents
Self-driven mower Download PDFInfo
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- CN102232331A CN102232331A CN2010101586341A CN201010158634A CN102232331A CN 102232331 A CN102232331 A CN 102232331A CN 2010101586341 A CN2010101586341 A CN 2010101586341A CN 201010158634 A CN201010158634 A CN 201010158634A CN 102232331 A CN102232331 A CN 102232331A
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- mower
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- gripping handle
- powered
- action bars
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Abstract
The invention discloses a self-driven mower. The self-driven mower comprises a main body of the mower, a plurality of rollers for supporting the main body of the mower, a motor for driving at least one roller, an operating lever of which one end is connected with the main body of the mower rightly, and a control device for regulating the self-driving operation of the mower. The control device comprises a holding handle movably arranged on the operating lever, and an electronic control device, wherein the holding handle can move between the first position where the rotating speed of the motor of the mower is zero and the second position where the rotating speed of the motor is more than zero relative to the operating lever; and the electronic control device detects the position of the holding handle and regulates the speed of the motor according to detection results. The self-driving operation of the mower can be controlled conveniently; and the mower walks steadily.
Description
Technical field
The present invention relates to a kind of lawn treating instrument, especially a kind of self-powered mower.
Background technology
Usually, all be provided with the action bars that is used to carry out on outdoor gardening class such as the mower cutting tool, operate the switch enclosure and the controlling organization of control on the action bars near the holding area person that is provided with the handled easily.The thrust that mower relies on the operator to put on action bars is advanced in ground and is carried out cutting operation, and the labour intensity that the operator operates this implementation formula mower is very big.And the implementation that the mower with self-powered function just no longer needs the operator to require great effort, this type of mower is provided with CD-ROM drive motor the front wheel or the rear roller of mower is driven, and the operator only need just can control the speed or retreat etc. of advancing of energy mower by the operation controlling organization when operation.
United States Patent (USP) is announced the speed regulating control scheme that has disclosed a kind of self-powered mower for No. 5442901, the self-powered speed of this mower depends on that the operator puts on the total amount of mower thrust and CD-ROM drive motor output torque, and the controlling organization of blade motor regulates separately and the adjusting of CD-ROM drive motor output torque is independent of.The operator will set self-powered speed earlier before the operation of mower self-powered, can suitably increase thrust or apply pulling force in operating process and regulate mower self-powered speed slightly.This regulative mode can make mower certain effect be arranged reducing the energy output facet, but when operation owing to can not provide continuous speed to regulate therefore and can not bring convenience to the operator.
China's utility model is announced the stepless speed regulation that has disclosed a kind of self-powered mower for No. 200956739, it comprises tensioning support, tensioner arm, driving belt, belt pulley and speed pulley, tensioner arm is hinged and connected on the tensioning support, one end of tensioner arm is connected with extension spring, the other end of extension spring is connected on the tensioning support, the other end of tensioner arm is connected with the speed governing stay cord, also is connected with rotating idle pulley at least one end of tensioner arm; Driving belt is socketed on the speed pulley of belt pulley, and they are in a side of described tensioner arm and are in the same side with rotating idle pulley; First wheel disc of speed pulley and second wheel disc are socketed in and can transmit on the mandrel that chases after moment of torsion; thereby forming V font belt grooves can make idle pulley compress driving belt by regulating the speed governing stay cord in operation process; change the actual pitch radius of speed pulley, be implemented under the non-stop-machine situation and adjust at any time from walking speed.This stepless speed regulation complexity, speed governing relies on mechanical system fully, the stability shortcoming.
Summary of the invention
For overcoming the deficiencies in the prior art, the invention provides a kind of easy to operate, mower that self-powered is stable.
Technical scheme of the present invention is achieved in that
A kind of self-powered mower, comprise the mower main body, support a plurality of rollers of described mower main body, drive the motor of at least one roller, one end is connected in the action bars of mower main body, and the control device of control mower self-powered operation, described control device comprises the gripping handle that is movably set in action bars, described gripping handle can be that zero primary importance and motor rotary speed move between greater than zero the second place at the mower motor rotary speed relative to action bars; And an electronic-controlled installation, described electronic-controlled installation is responded to the position of gripping handle, and the result detects to induction, and according to surveying the inspection result motor rotary speed is regulated.
Described gripping handle is pivotally connected to the other end of action bars, and described electronic-controlled installation comprises the electronic inductor that is arranged between gripping handle and the action bars; Described electronic inductor is the Hall element unit.Described electronic-controlled installation further comprises the processor that electrically connects with the Hall element unit, and described processor is arranged at the mower main body, receives and handle the signal by the output of Hall element unit.Described processor comprises velocity sensor, and described velocity sensor is used to detect motor rotary speed, and the rotating speed of motor is regulated.
Described action bars is provided with switch enclosure, and described switch enclosure is provided with first, second link, and described gripping handle is provided with first, second connecting portion, and first, second connecting portion of described gripping handle is fixedlyed connected with first, second link of switch enclosure respectively.Described Hall element unit comprises first Hall sensor device that relative action bars fixedly installs, and rotating second Hall sensor device that is provided with relative to first Hall device, described first, second Hall sensor device is contained in second link of described switch enclosure.The side of relative second Hall sensor device of described first Hall sensor device is provided with semiconductor element, the side of relative first Hall sensor device of described second Hall sensor device is provided with two magnet steel bodies, and described semiconductor element is between the magnet steel body.
Be provided with the driving switch of control motor in the described switch enclosure, described switch enclosure head lamp brush guard pivot is provided with the control lever that is used to trigger described driving switch.Described control lever is provided with the holding part, and described gripping handle is provided with the holding part, and the holding part of described gripping handle and the holding part of control lever are in the sustained height position.
Compared with prior art, the invention has the beneficial effects as follows: since adopted on the mower can motor rotary speed be zero primary importance and motor rotary speed greater than zero the second place between the gripping handle of movable control, the operator can easily regulate the self-powered speed of mower continuously when self-powered is operated; Corresponding to the diverse location of gripping handle, electronic-controlled installation can detect and the mower motor rotary speed be controlled to adjust exactly, makes the mower self-powered stable.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the schematic perspective view of self-powered mower.
Fig. 2 is the end view of self-powered mower.
Fig. 3 is that schematic perspective view is amplified in the part of self-powered mower operation interface.
Fig. 4 is the structural representation of self-powered mower operation interface side-looking direction.
Fig. 5 is the part-structure schematic diagram after self-powered mower operation interface switch enclosure is removed lid.
Fig. 6 is the structural representation after self-powered mower operation interface switch enclosure is removed lid.
Fig. 7 is another status architecture schematic diagram after self-powered mower operation interface switch enclosure is removed lid.
Fig. 8 is the cross-sectional schematic of Fig. 6 along the A-A direction.
Fig. 9 is a self-powered mower part drives structure schematic perspective view.
Figure 10 is the local enlarged diagram of Fig. 9, and transmission this moment clutch is in first state.
Figure 11 is the local enlarged diagram of Fig. 9, and transmission this moment clutch is in second state.
Figure 12 is the enlarged diagram of the local transmission clutch of Fig. 8.
Figure 13 is the cross-sectional schematic of Fig. 6 along the B-B direction, and this moment, gripping handle was in first pivot position.
Figure 14 is the cross-sectional schematic of Fig. 6 along the B-B direction, and this moment, gripping handle was positioned at original state.
Figure 15 is the cross-sectional schematic of Fig. 6 along the B-B direction, and this moment, gripping handle was positioned at second pivot position.
Figure 16 is a self-powered mower electronics control device structural representation.
Wherein:
1-mower 20a-holding part 39-perforate
2-key spare 20b, 20c connecting portion 40-rotating shaft
2a-service portion 201-pin 401-gripper shoe
3a-switch contact 21-moving block 402-steel wire rope
4-power supply 21a, 21b-end arm 403-rotating shaft
6-CD-ROM drive motor 21c-pivot 50-transmission clutch
Action bars 22-slide block 51-elastic component under the 8-
8 '-intermediate bar 23-driving switch 52-control piece
The last action bars 24-of 9-back-moving spring 54-shift fork
9a-terminal part 25-starting switch 55-moved end tooth
10-mower main body 26-back-moving spring 55a-slope tooth
11-action bars 27-seesaw spare 55b-groove
The quiet end tooth of the 12-housing 27a-first end arm 56-
The 13a-front wheel 27b-second end arm 56a-slope tooth
13b-rear roller 27c-pivot 57-motor drive shaft
14-collection grass case 28-mating part 58 driving cogs
15-heightens assembly 29-trigger end 59-pinion
151-retaining mechanism 30-Hall element unit 501-gear-box
The 16-switch enclosure 31-first Hall sensor device 60-power transmission shaft
The 16a-main part 32-second Hall sensor device 61-wheel shaft
16b, the 16c-link 32a-first groove 62-internal tooth
The 17-connecting portion 32b-second groove 63-one-way clutch mechanism
18-connecting rod 33a-carriage 65-screw
19-control lever 33b-carriage 70-apparatus for converting DC power
19a-rotating shaft 35-pin 71-processor
19b-briquetting 36-Hall connecting line 72-velocity sensor
19c-holding part 37-Hall element 73-transistor driver circuit
20- gripping handle 38a, 38b-magnet steel body X, Y-central axis
Embodiment
The invention discloses a kind of self-powered mower, this self-powered mower is provided with the self-powered speed control unit, the operator can control in the self-powered speed on ground mower by the position of regulating the mower gripping handle, rapid operation, comfortable and mower are advanced stable, now describe with specific embodiment.
With reference to Fig. 1, shown in Figure 2, self-powered mower 1 comprises mower main body 10, support a pair of front wheel 13a and a pair of rear roller 13b (only illustrating among the figure) of mower main body 10, be installed on the action bars 11 of mower main body 10 both sides, be positioned at the collection grass case 14 at mower main body 10 rears, wherein, mower main body 10 comprises housing 12, is arranged at the CD-ROM drive motor 6 (with reference to Fig. 8), cutting motor of housing 12, by the cutting tool (not shown) of cutting motor driven rotation and power supply 4 that power is provided for cutting motor and CD-ROM drive motor 6.In the present embodiment, a pair of rear roller 13b is by CD-ROM drive motor 6 driven in rotation, and for CD-ROM drive motor 6 and cutting motor are power brick for the power supply 4 of power, it is arranged in the housing 12 formed host cavities.Action bars 11 comprises a pair of down action bars 8 that is connected in mower main body 10 both sides and almost parallel, a pair of last action bars 9 that is connected with following action bars 8 respectively, and action bars 11 is from mower main body 10 longitudinal extension that (illustrates direction shown in the arrow L) towards the back upper place.Deposit the time save space in order to make mower 1, following action bars 8 in the present embodiment is connected with last action bars 9 by intermediate bar 8 ', be provided with quick retaining mechanism 151 between intermediate bar 8 ' and the following action bars 8, one horizontal connecting portion 17 is set between the extending end of intermediate bar 8 ', action bars 8 is provided with and heightens assembly 15 under one of them of close connecting portion 17, pivotally connected between last action bars 9 and the following action bars 8, by heighten on the assembly 15 action bars 9 descend relatively action bars 8 can be between the second place shown in primary importance shown in the dotted line and the solid line pivotal adjustment (with reference to Fig. 2), with the needs of the operation height that is fit to the different operating person.The extension of action bars 9 is parallel to each other on two, and between two operation repetitive bars 9, be provided with a horizontal connecting rod 18, be provided with switch enclosure 16 between the 9a of extending end portion of last action bars 9, this switch enclosure 16 and horizontal connecting rod 18 almost parallels, this switch enclosure 16 comprises main part 16a and lays respectively at the link 16b of main part 6a both sides, 16c, one offers gripping handle 20 that the operator grips usefulness fixedly connects with the first link 16b and the second link 16c of switch enclosure 16 respectively.This gripping handle 20 is provided with and takes the shape of the letter U, this U-shaped handle comprises that one is positioned at the holding part 20a of switch enclosure 16 tops, and the first connecting portion 20b and the second connecting portion 20c that lay respectively at 20a both sides, holding part, corresponding respectively first, second link 16b that is connected in switch enclosure of the described first connecting portion 20b and the second connecting portion 20c, 16c.U-shaped control lever 19 pivots that are positioned at gripping handle 20 the place aheads are arranged at switch enclosure 16, the holding part 19c of this U-shaped control lever 19 and the holding part 20a of U-shaped handle roughly are positioned at the sustained height position, so the operator is easy to that the holding part 19c of control lever 19 is grasped in the centre of the palm with the holding part 20a of gripping handle 20 and controls.Control lever 19 in the present embodiment can adopt rigid material to make round bar, and gripping handle 20 can adopt diameter that rigid material the makes hollow steel pipe greater than control lever, and the steel pipe appearance is provided with the soft cover rubber material, is suitable for operation and grips.
CD-ROM drive motor 6 in the present embodiment and cutting motor can share a motor and replace, and driving mechanism can adopt motor, gasoline motor etc. certainly; Wherein gripping handle 20 can be configured to other shapes such as L shaped, annular, cattle horn shape; It is different shapes that control lever 19 also can cooperate the operation setting of gripping handle 20; The front wheel 13a and the rear roller 13b quantity that support mower main body 10 include three at least, and wherein the roller that is driven by CD-ROM drive motor 6 comprises one at least.
With reference to Fig. 3, shown in Figure 4, a key spare 2 is selectively matched with switch enclosure 16, and this key spare 2 comprises that a service portion 2a can fixedly connect by switch enclosure 16 shell nozzle (not shown)s and switch enclosure 16.Control lever 19 can rotate by pivot between the second place shown in primary importance shown in the solid line and the dotted line relative to gripping handle 20, angle [alpha] between the primary importance and the second place is 30 degree greatly most, when control lever 19 is pivoted to the second place just and gripping handle 20 lean.Control lever 19 has a rotating shaft 19a who extends switch enclosure 16 main part 16a, rotating shaft 19a is provided with briquetting 19b, when control lever 19 when switch enclosure 16 pivots rotate, briquetting 19b is correspondingly rotated to the second place shown in the dotted line by the primary importance shown in the solid line.The moving block 21 that leans with briquetting 19b moves to the second place shown in the dotted line owing to briquetting 19b impetus by initial position.
With reference to shown in Figure 5, switch enclosure main part 16a is disposed with the driving switch 23 of briquetting 19b, moving block 21, slide block 22, control mower 1 self-powered along clockwise direction, the starting switch 25 of control blade rotation, and a mating part 28 that is used to connect key spare 2.Wherein starting switch 25 is positioned at the top of driving switch 23, and near first, second link 16b, the position of 16c is respectively arranged with back-moving spring 26, the end of back-moving spring 26 and control lever 19 abutment action in the switch enclosure main part 16a; The rotating shaft 19a of control lever 19 has a central axis X, and the downside of control lever 19 is provided with a rotating shaft 40, and rotating shaft 40 has a central axis Y, and gripping handle 20 40 relative action bars 11 around the shaft is pivotable.Moving block 21 is provided with forming V-shape, the first end arm 21a of this V-arrangement moving block 21 contact with briquetting 19b against.When control lever 19 around its rotating shaft 19a during to gripping handle 20 rotation, thereby briquetting 19b rotates and promotes V-arrangement moving block 21 and rotate along arrow R direction indication around its pivot 21c; V-arrangement moving block 21 second end arm 21b one sides and slide block 22 adjacency, opposite side and back-moving spring 24 lean, and when moving block 21 pivoted, its second end arm 21b promoted slide block 22 and slides along direction shown in the arrow S in switch enclosure 16; When control lever 19 was switched to the second place against gripping handle 20, moving block 21 promoted slide blocks 22 and moves to the switch contact 3a conflict that makes slide block 22 sidepieces and driving switch 23, driving switch 23 conducting that is triggered.
With reference to shown in Figure 6, the starting switch 25 that is positioned at driving switch 23 tops is provided with an elasticity trigger end 29, the top pivot of this trigger end 29 connects a V-arrangement seesaw spare 27, first end arm 27a of this V-arrangement seesaw spare 27 and slide block 22 adjacency, the second end arm 27b and key mating part 28 adjacency; Under the usual condition, V-arrangement seesaw spare 27 its second end arm 27b under the effect of an elastic component (not shown) tilts and is in close proximity to a side of key mating part 28 to starting switch 25.When key spare service portion 2a with after key mating part 28 is connected, the second end arm 27b of V-arrangement seesaw spare 27 contact with key spare service portion 2a against, key spare service portion 2a will carry out spacing to the pivoting action of the second end arm 27b.If this moment, control lever 19 was switched to against the second place of gripping handle 20, then moving block 21 promotion slide blocks 22 move, slide block 22 promotes the first end arm 27a of V-arrangement seesaw spare 27 again, because the second end arm 27b of V-arrangement seesaw spare 27 is subjected to the position-limiting action power of key spare 2 service portion 2a at this moment, under the stressed respectively condition of two of V-arrangement seesaw spare 27 end arms, the elastic acting force that V-arrangement seesaw spare 27 promptly overcomes trigger end 29 produces to the displacement of starting switch 25 and makes starting switch 25 triggering and conducting.
With reference to shown in Figure 7, key spare service portion 2a is not with the key mating part 28 of switch enclosure 16 when matched, and the second end arm 27b of V-arrangement seesaw spare 27 promptly can not be subjected to the spacing of key spare service portion 2a.After V-arrangement seesaw spare 27 first end arm 27a were stressed, V-arrangement seesaw spare 27 power turned to the second place shown in the dotted line by initial position around its pivot 27c in switch enclosure 16, can't not make starting switch 25 conductings thereby trigger end 29 produces displacement.Therefore want to make starting switch 25 triggering and conducting, need earlier key spare service portion 2a to be connected with switch enclosure mating part 28 to put in place, control lever 19 driving switch 23 and starting switch 25 simultaneously again pivot.When needs stop cutting operation or self-powered and advance, be held in the control lever 19 in the hand after only needing to discharge, control lever 19 just automatically returns back to 20 initial positions away from gripping handle under the active force of back-moving spring 26.Self-powered switch 23 all can disconnect with starting switch 25 and self-powered and cutting operation are quit work respectively, and operation is very easy.Certainly the operator can select whether to use key spare 2 according to the needs of practical operation; When the operator only selects the mower self-powered, only need pivot action control lever 19; When selecting self-powered, mowing operation, operate control lever 19 again after needing to connect key spare 2.
With reference to shown in Figure 8, gripping handle 20 go up relatively action bars 9 can be between the first operating position II shown in initial position I shown in the solid line and the dotted line, the second operating position III around the shaft 40 pivots change; Wherein primary importance I is the pivot position near last action bars 9, and second place II is the pivot position away from last action bars 9.The gripping handle first connecting portion 20b fixedly is coupled to the first link 16b of switch enclosure 16, one L shaped rigidity carriage 33a is set between action bars terminal part 9a and the gripping handle first connecting portion 20b, this rigidity carriage 33a is fixedly connected on action bars terminal part 9a by securing member, one gripper shoe 401 is pivotally connected to this rigidity carriage 33a, and can 402 rotate around the shaft; Rotating shaft 40 is connected in the angle point of rigidity carriage 33a and extends to switch enclosure main part 16a, and gripping handle 20 this rotating shaft 40 relatively moves pivotally; Fixedly install a pin 201 on the gripping handle first connecting portion 20b, this pin 201 pass rigidity carriage 33a perforate 39 back to switch enclosure main part 16a direction longitudinal extension and with gripper shoe 401 1 side contacts against, gripper shoe 401 afterbodys are connected with tensioning member, what this tensioning member adopted usually is steel wire rope 402, wherein contact with pin 201 against gripper shoe 401 1 sides near a side of last action bars 9, when gripping handle 20 and switch enclosure 16 when countershaft 40 is made pivoting action away from last action bars 9 mutually together, pin 201 pivots with gripping handle 20 and promotes gripper shoe 401 to doing to pivot away from the relative rigidity carriage of the direction of last action bars 9 33a and the generation displacement, and steel wire rope 402 is owing to the rotation that is subjected to gripper shoe 401 produces stretching.When gripping handle 20 when pivoting near the primary importance of last action bars 9, pin 201 lateral deviations are from gripper shoe 401 1 sides, gripper shoe 401 does not rotate, promptly steel wire rope 402 can not produce stretching.In addition, because the shape of perforate 39 is arranged so that pin 201 is subjected to the spacing of perforate 39 two sides in the pivoting action of perforate 39, the maximum forward leaning angle that is gripping handle 20 relative action bars 11 is roughly 90 degree right angles, and maximum hypsokinesis angle is roughly 105 degree and has been subjected to qualification respectively.
Gripping handle 20 relative action bars 11 in the present embodiment are pivot settings, those skilled in the art it is also contemplated that gripping handle 20 relative action bars 11 slips are provided with, the operator just can control in the self-powered speed on ground mower like a cork as long as slide control gripping handle 20 on action bars 11.
Shown in Fig. 9, Figure 10,11, a pair of rear roller 13b of mower 1 is a driving wheel, is provided with transmission clutch 50 between rear roller 13b and the CD-ROM drive motor 6, and this transmission clutch 50 is contained in the gear-box 501; CD-ROM drive motor 6 is provided with motor drive shaft 57, one moved end tooth 55 is mounted slidably on motor drive shaft 57, and selectively mesh with quiet end tooth 56 or throw off, one driving cog 58 is fixedly set on the power transmission shaft 60 and with quiet end tooth 56 engagements and connects, the two ends of power transmission shaft 60 are provided with pinion 59 (only illustrating among the figure) thereby are meshed with the internal tooth 62 of rear roller 13b respectively and drive rear roller 13b, wherein rear roller 13b is connected by a wheel shaft 61, be provided with one-way clutch mechanism 63 between pinion 59 and the power transmission shaft 60, it is the unidirectional delivery moment of torsion that this one-way clutch mechanism 63 makes between pinion 59 and the rear roller 13b, be that the thrust that the operator puts on mower can be by rear roller 13b reverse drive to power transmission shaft 60 and motor drive shaft 58, a forward transmits rotation torque between pinion 59 and the rear roller 13b, does not oppositely transmit moment of torsion.Even mower is in non-self-powered state, the operator also can carry out operation to mower like a cork.Control piece 52 pivots that one end and steel wire rope 402 connect are arranged on the gear-box 501, one shift fork 54 is fixedly connected on the lower end of control piece 52, shift fork 54 be arranged at the circumferential groove 55b clamping in 55 surfaces of moved end tooth, control piece 52 produces and pivots under the stretching action of steel wire rope 402, drive shift fork 54 simultaneously and rotate, shift fork 54 drives moved end tooth 55 and produce slip on motor drive shaft 57.
With further reference to Fig. 8, shown in Figure 11, when gripping handle 20 when deviating from drilling and make the second place III of bar 9 and pivot, the stretching of steel wire rope 402 makes control piece 52 produce and pivots, cause that shift fork 54 rotates drive moved end tooth 55 and moves to the direction that departs from quiet end tooth 56 in motor drive shaft 57, make the engagement of 55 disengagements of moved end tooth and quiet end tooth 56, cause rotatablely moving of CD-ROM drive motor 6 to be passed to rear roller 13b by transmission clutch 50.Therefore meet with barrier when mower the place ahead, the operator is as long as pivot gripping handle 20 to second place III, makes moved end tooth 55 throw off engagement with quiet end tooth 56, mower 1 can the person of being operated easily pulling and drawing back.When gripping handle 20 is in initial position I or when pivoting near the primary importance II of last action bars 9, because steel wire rope 402 does not produce stretching, so control piece 52 all is in its initial position.
With reference to shown in Figure 10, control piece 52 is in its initial position under flexible member 51 effects, and moved end tooth 55 is in the state that meshes with quiet end tooth 56 at this moment; If this moment, pivot control lever 19 was with driving switch 23 triggering and conducting, again control lever 19 is pivoted to the direction near action bars 11 with gripping handle 20, mower can quicken in the self-powered on ground, and along with the increase of pivoting angle, the corresponding increase of mower self-powered speed.By said structure, the operator can be in rotation gripping handle 20, and the stretching that utilizes steel wire rope 402 to produce is controlled the transmission clutch 50 that is arranged between CD-ROM drive motor 6 and the rear roller 14b.It is pointed out that mower self-powered speed can be arranged to stepless speed regulation, also can arrange into the gear speed governing.
With reference to shown in Figure 12, adopt matched in clearance between the quiet end tooth 56 of present embodiment and the motor drive shaft 57, quiet end tooth 56 rotates relative to motor drive shaft 57, but quiet end tooth 56 has been carried out restriction moving axially of motor drive shaft 57.The tooth of transmission of matching on quiet end tooth 56 and the moved end tooth 55 is made as slope tooth 56a respectively, 55a, and slope tooth 56a, and the slope of 55a is over against setting.When moved end tooth 55 and quiet end tooth 56 are meshing with each other, tooth 55 slope tooth 55a in moved end are passed to quiet end tooth 56 slope tooth 56a with driving torque, quiet end tooth 56 transfers a torque to power transmission shaft 60 by driving cog 58 again, and power transmission shaft 60 drives rear roller 13b by the pinion 59 that is arranged at terminal part.Moved end tooth 55, will slide along arrow P direction indication among the figure, thereby throw off and quiet end tooth 56 engagements under the stretching action of steel wire rope 402 by shift fork 54 and control piece 52.
With reference to Figure 13, Figure 14, shown in Figure 15, second connecting portion 20c of gripping handle 20 and the second link 16c of switch enclosure 16 fixedly connect, be provided for detecting the electronic inductor of gripping handle 20 change in location in this switch enclosure 16, what the electronic inductor in the present embodiment adopted is Hall element unit 30, Hall element unit 30 comprises first Hall sensor device 31 and second Hall sensor device 32 of involutory setting, wherein second Hall sensor device 32 is near gripping handle 20, first Hall sensor device 31 roughly is fan-shaped second link 16 that is accommodated in switch enclosure 16 away from gripping handle 20, the first Hall sensor devices 31 and second Hall sensor device 32.Be set with second rigidity carriage 33b between action bars 9 terminal part 9a and the gripping handle second connecting portion 20c, this rigidity carriage 33b is provided with pin 35, first Hall sensor device 31 and second Hall sensor device 32 are connected on this pin 35, and first Hall sensor device 31 fixes by screw 65 or other fastening means and this rigidity carriage 33b, therefore first Hall sensor device 31 and rigidity carriage 33b and on action bars 9 be relative static; Wherein an end face over against gripping handle 20 is provided with the first groove 32a on second Hall sensor device 32, one pin 201 parts that fixedly are coupled to gripping handle 20 are contained in this groove 32a, when pivot gripping handle 20, pin 35 pivots with gripping handle 20 and rotates in groove 32a, when pin 32a turns to groove 32a wall position contacting, just drive second Hall sensor device 32 and rotate together, promptly second Hall sensor device 32 can be that rotating shaft is rotated relative to first Hall sensor device 31 with pin 35.Wherein second Hall sensor device 32 is provided with the second groove 32b over against the end face of first Hall sensor device 31, and two magnet steel body 38a, 38b are arranged at the two ends of the second groove 32b respectively.First Hall sensor device 31 is provided with Hall element 37, this Hall element 37 is made by semi-conducting material, it is connected with power supply 4 by Hall connecting line 36 (with reference to Figure 14), and this Hall element 37 is just between two relative magnet steel body 38a, 38b of second Hall sensor device 32; When second Hall sensor device 32 when first Hall sensor device 31 rotates, two magnet steel body 38a, 38b are relative, and Hall elements 37 produce displacements, it is hall sensing voltage that the two ends of Hall element 37 will produce voltage change.The electronic inductors such as potentiometer that Hall element unit 30 in the present embodiment can industry adopts are replaced.
With further reference to shown in Figure 16, when driving switch close 23 close after, dc source 4 flows to apparatus for converting DC power 70 through driving switch 23, this apparatus for converting DC power 70 is converted to low-voltage dc power supply with high-voltage DC power supply, for related elements such as processor 71, Hall element unit 30 provide electric power.After Hall element unit 30 obtained electric power, according to current Hall element 37 relative magnet steel body 38a, corresponding induced voltage signal was exported in the position of 38b, and this induced voltage signal is passed to processor 71.After processor 71 receives this induced voltage, can judge the speed that the user is provided with according to the size of this inductive voltage value.Processor 71 detects current CD-ROM drive motor 6 rotating speeds by velocity sensor 72 simultaneously, and the velocity ratio that current driving rotating speed and user are provided with, after the certain calculation processing is carried out in processor 71 inside, generate control signal corresponding, processor 71 is exported to transistor driver circuit 73 transistorized disconnection of control or closing times with this control signal, thereby adjust current CD-ROM drive motor 6 speed, current CD-ROM drive motor 6 speed and user's setting speed are complementary.
During concrete operations, can start driving switch 23 by first rotation control rod 19, make the control circuit closure of mower self-powered, gripping gripping handle 20 then pivots to close last action bars 9 directions with control lever 19, mower quickens gradually in the self-powered on ground, and along with the increase of pivoting angle, the corresponding increase of mower self-powered speed.With reference to Fig. 8, shown in Figure 13, when gripping handle 20 is switched to primary importance II with last action bars 9 approximate vertical, be that angle beta 1 is 90 degree right angles when being provided with between gripping handle 20 central axis and the action bars terminal part 9a central axis, the mower self-powered speed maximum that this moment is corresponding.Certainly, this maximum self-powered speed is to have taken all factors into consideration the optimum speed for realizing that the optimum Cutting effect designs behind lawn, the surface condition, therefore the operator is in course of normal operation, the speed of travel that the operator can the not occur situation of self-powered speed that can't follow up; When maximum gait of march, carrying out cutting operation, because it is big in vertical state that gripping handle 20 is gone up action bars 9 relatively, therefore the operator puts on force direction and action bars 11 almost parallels on the gripping handle 20, the active force that puts on the gripping handle 20 is passed to mower main body 10 by last action bars 9, force direction extended line on the last action bars 9 roughly is positioned near the barycenter of mower main body 10, therefore not having extra power can make mower main body 10 is that fulcrum produces upset with front wheel 13a or rear roller 13b, thereby make the implementation of mower more stable, the operator operates comfortable, indefatigability meets human engineering.With reference to Fig. 8, shown in Figure 14, joystick 20 returns to initial position I, angle beta 0 between gripping handle 20 central axis and the last action bars terminal part 9a central axis is roughly the obtuse angle of 97 degree, this moment, the speed of CD-ROM drive motor 6 was zero, the self-powered gait of march that is mower is zero, because the steel wire rope 402 of this position can not produce stretching, so transmission clutch 50 is in engagement.With reference to Fig. 8, shown in Figure 15, when gripping handle 20 leaves initial position I when deviating from direction that drilling makes bar 9 and be switched to second place III, maximum angle β 2 between gripping handle 20 central axis and the action bars terminal part 9a central axis is roughly the dullness of 105 degree, this moment, steel wire rope 402 generations stretched, the transmission clutch 50 of mower is in disengaged condition, and mower can not be operated person's pulling like a cork and retreats walking.
Claims (10)
1. self-powered mower comprises:
The mower main body;
Support a plurality of rollers of described mower main body;
Drive the motor of at least one roller;
The action bars that one end is connected with the mower main body;
And the control device of regulating the operation of mower self-powered;
It is characterized in that:
Described control device comprises that one is movably set in the gripping handle of action bars, and described gripping handle can be that zero primary importance and motor rotary speed move between greater than zero the second place at the mower motor rotary speed relative to action bars; And an electronic-controlled installation, described electronic-controlled installation is responded to the position of gripping handle, and the result detects to induction, and according to surveying the inspection result motor rotary speed is regulated.
2. self-powered mower according to claim 1 is characterized in that: described gripping handle is pivotally connected to the other end of action bars, and described electronic-controlled installation comprises the electronic inductor that is arranged between gripping handle and the action bars.
3. self-powered mower according to claim 2 is characterized in that: described electronic inductor is the Hall element unit.
4. self-powered mower according to claim 3, it is characterized in that: described electronic-controlled installation further comprises the processor that electrically connects with the Hall element unit, described processor is arranged at the mower main body, receives and handle the signal by the output of Hall element unit.
5. self-powered mower according to claim 4 is characterized in that: described processor comprises velocity sensor, and described velocity sensor is used to detect motor rotary speed, and the rotating speed of motor is regulated.
6. self-powered mower according to claim 3, it is characterized in that: described action bars is provided with switch enclosure, described switch enclosure is provided with first, second link, described gripping handle is provided with first, second connecting portion, and first, second connecting portion of described gripping handle is fixedlyed connected with first, second link of switch enclosure respectively.
7. self-powered mower according to claim 6, it is characterized in that: described Hall element unit comprises first Hall sensor device that relative action bars fixedly installs, and rotating second Hall sensor device that is provided with relative to first Hall device, described first, second Hall sensor device is contained in second link of described switch enclosure.
8. self-powered mower according to claim 7, it is characterized in that: the side of relative second Hall sensor device of described first Hall sensor device is provided with semiconductor element, the side of relative first Hall sensor device of described second Hall sensor device is provided with two magnet steel bodies, and described semiconductor element is between the magnet steel body.
9. self-powered mower according to claim 8 is characterized in that: be provided with the driving switch of control motor in the described switch enclosure, described switch enclosure head lamp brush guard pivot is provided with the control lever that is used to trigger described driving switch.
10. self-powered mower according to claim 9 is characterized in that: described control lever is provided with the holding part, and described gripping handle is provided with the holding part, and the holding part of described gripping handle and the holding part of control lever are in the sustained height position.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010158634 CN102232331B (en) | 2010-04-21 | 2010-04-21 | Self-driven mower |
| PCT/CN2011/000703 WO2011131031A1 (en) | 2010-04-21 | 2011-04-21 | Mower and controlling method for controlling its self-driven operation |
| US13/656,128 US20130046448A1 (en) | 2010-04-21 | 2012-10-19 | Lawn mower and method for controlling self-driving operations of the lawn mower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010158634 CN102232331B (en) | 2010-04-21 | 2010-04-21 | Self-driven mower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102232331A true CN102232331A (en) | 2011-11-09 |
| CN102232331B CN102232331B (en) | 2013-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010158634 Active CN102232331B (en) | 2010-04-21 | 2010-04-21 | Self-driven mower |
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