WO2019192200A1 - 打草机 - Google Patents

打草机 Download PDF

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Publication number
WO2019192200A1
WO2019192200A1 PCT/CN2018/118606 CN2018118606W WO2019192200A1 WO 2019192200 A1 WO2019192200 A1 WO 2019192200A1 CN 2018118606 W CN2018118606 W CN 2018118606W WO 2019192200 A1 WO2019192200 A1 WO 2019192200A1
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WO
WIPO (PCT)
Prior art keywords
mode
bobbin
grass
head
grassing
Prior art date
Application number
PCT/CN2018/118606
Other languages
English (en)
French (fr)
Inventor
付祥青
任宇飞
杨德中
Original Assignee
南京德朔实业有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 南京德朔实业有限公司 filed Critical 南京德朔实业有限公司
Priority to CN201880003943.6A priority Critical patent/CN110177455B/zh
Publication of WO2019192200A1 publication Critical patent/WO2019192200A1/zh

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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G3/00Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
    • A01G3/06Hand-held edge trimmers or shears for lawns
    • A01G3/062Motor-driven edge trimmers
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D34/00Mowers; Mowing apparatus of harvesters
    • A01D34/01Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/416Flexible line cutters
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G3/00Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
    • A01G3/06Hand-held edge trimmers or shears for lawns
    • A01G3/067Motor-driven shears for lawns

Definitions

  • the present disclosure relates to a lawnmower.
  • the grass machine has a grass file, and the user can start the grass button to start the grass mode.
  • the mower has been in operation for a period of time, it is necessary to take out the line or take up the line.
  • Most of the mowers can only be manually placed or manually taken.
  • Chinese public patent CN105850342A discloses a pay-off structure, which can realize instant release by the operator operating the corresponding button, but it only reveals how to automatically release the line.
  • the main object of the present disclosure is to provide a more automated and intelligent grass cutter.
  • a lawnmower comprising:
  • a grass head comprising a head shell and a bobbin, the bobbin is used for winding a straw rope, and the head shell is for accommodating the bobbin and forming a threading hole for the straw to pass through;
  • the main motor is operatively associated with the spool to drive the spool to cut vegetation in the grassing mode, or to lay the line in the payout mode, and to wind in the winding mode, wherein, in the grassing mode,
  • the main motor drive spool rotates in a first direction and at a first speed;
  • a switching mechanism including a switching device and an auxiliary motor associated with the head casing, for driving the switching device to drive the head shell to move up and down;
  • the auxiliary motor drives the switching device to move the head shell to the grassing position to enter the grassing mode; when the switching mechanism receives the payout signal, the auxiliary The motor drive switching device drives the head shell to move to the pay-off position to enter the pay-off mode; when the switching mechanism receives the winding signal, the auxiliary motor drives the switching device to move the head shell to the winding position to enter the winding mode .
  • the head case includes an associated member
  • the switching device includes a gear shaft associated with the auxiliary motor shaft, a gear mounted on the gear shaft, a rack meshing with the gear, and a claw member associated with the rack, wherein The jaw member is associated with an associated member of the head shell.
  • the motor drive spool rotates in a second direction relative to the first direction.
  • the motor drive spool rotates at a second speed lower than the first speed.
  • the lawnmower has a first main switch, the first main switch is for the user to trigger to enter the grassing mode, the head shell is engaged with the bobbin, and the motor drive bobbin and the head shell rotate together at a high speed.
  • the lawnmower has a second switch, and the second switch is used by the user to trigger to enter the winding mode.
  • the lawnmower has a third switch different from the first main switch, and the first main switch and the third switch are activated by the user to enter the payout mode, the head shell and the bobbin are disengaged, and the motor drive bobbin is high speed. Forward rotation, causing the speed difference with the head shell to be released.
  • the lawnmower wirelessly connects at least one mobile terminal, sends a grass signal to the grass cutter to trigger a grassing mode, or sends a winding signal to the grasser to trigger a winding mode, or send a payoff A signal is sent to the lawnmower to trigger the payout mode.
  • a lawnmower comprising:
  • the grass head including the head shell and the spool;
  • the main motor is operatively associated with the spool to drive the spool to cut the vegetation in the grassing mode, or to lay the line in the payout mode, and to wind in the winding mode
  • a switching mechanism comprising: a switching device associated with any one of the head shell and the bobbin for driving the switching device to move one of the head shell and the bobbin up and down to engage or disengage the other of the head shell and the bobbin;
  • the switching device When the switching mechanism receives the grassing signal, the switching device is driven to drive the head shell to move to the grassing position to enter the grassing mode, at which time the head shell meshes with the bobbin; when the switching mechanism receives the payout signal When the switching device is driven, the head case is moved to the pay-off position to enter the pay-off mode, and the head shell and the bobbin are disengaged to the first distance; when the switching mechanism receives the winding signal, the switching device is driven. The head shell is moved to the winding position to enter the winding mode, and the head shell and the bobbin are disengaged to the second distance.
  • the head case includes an associated member
  • the switching device includes a gear shaft associated with the main motor shaft, a gear mounted on the gear shaft, a rack meshing with the gear, and a claw member associated with the rack, wherein The claw member is coupled to an associated member of the head case.
  • the bobbin includes a bobbin related member
  • the switching device includes a gear shaft associated with the main motor shaft, a gear mounted on the gear shaft, a rack meshing with the gear, and a claw member associated with the rack, wherein The jaw member is associated with the spool associated.
  • the main motor driving bobbin rotates together with the head shell in a first direction and a first speed
  • the main motor drives the bobbin in a first direction and A speed and the head shell are disengaged and differentially rotated.
  • the main motor drive spool rotates in a second direction relative to the first direction.
  • the main motor drive spool rotates at a second speed lower than the first speed.
  • the lawnmower has a first main switch, the first main switch is for the user to trigger to enter the grassing mode, the head shell is engaged with the bobbin, and the motor drive bobbin and the head shell rotate together at a high speed.
  • the lawnmower has a second switch, and the second switch is used by the user to trigger to enter the winding mode.
  • the lawnmower has a third switch different from the first main switch, and the first main switch and the third switch are activated by the user to enter the payout mode, the head shell and the bobbin are disengaged, and the motor drive bobbin is high speed. Forward rotation, causing the speed difference with the head shell to be released.
  • the lawnmower wirelessly connects to the mobile terminal, and triggers the grassing signal, the winding signal, the payout signal, and starts to enter the corresponding grassing mode, the winding mode, and the pay-off mode through the mobile terminal.
  • the lawnmower includes a control unit, the control unit is operatively connected to the switching mechanism and the main motor, and the control unit controls the according to a grass signal, a payout signal, and a winding signal.
  • the switching mechanism and the main motor are in an operating state corresponding to the grassing mode, the pay-off mode, and the winding mode.
  • the lawnmower includes a line length detecting device, and the line length detecting device detects the state of the grassing rope, and sends a payout signal when the grassing rope line is short, that is, less than the preset grassing length
  • the control unit is configured to switch the lawnmower to a pay-off mode, and send a grass signal to the control unit when the grass rope is greater than a preset grass length, so that the grass cutter is switched to Grass pattern.
  • the head shell has an outer threading hole
  • the bobbin has an inner threading hole
  • the outer threading hole and the inner threading hole are passed through the grass rope to be wound around the bobbin
  • the grass cutter includes a line length.
  • the line length detecting device includes a micro switch, a striking member, the micro switch is disposed on the grass head, and the striking member is disposed at a relative position of the contact of the micro switch to The electric signal generated by the striking member striking the micro switch periodically generates the relevant payout signal and the grassing signal when the grass rope is rotated.
  • the line length detecting device includes a striking member, a Hall element, an elastic member, and a magnet
  • the elastic member connects the striking member and the Hall element, and periodically strikes the striking when the grass rope rotates
  • the member drives the elastic member to shift, thereby changing the relative relationship between the Hall element and the magnet, and the Hall element sensing magnet generates an electrical signal to generate an associated payout signal and a grassing signal.
  • a lawnmower comprising: a driving device; a grass head comprising a head shell and a bobbin; the driving device being operatively associated with the spool to drive the spool Cutting the vegetation in the grassing mode, or discharging in the pay-off mode, and winding in the winding mode; the switching mechanism includes at least a clutch device associated with any one of the head shell and the bobbin, the clutch device Triggered to cause the head shell to engage or disengage the spool;
  • the switching mechanism When the switching mechanism receives the grassing signal, triggering the clutch device, so that the grass head moves to the grassing position to enter the grassing mode, at which time the head shell meshes with the bobbin; when the switching mechanism receives the payout signal At the same time, the clutch device is triggered to move the grass head to the pay-off position to enter the pay-off mode, at which time the head shell and the bobbin are disengaged to a first distance; when the switching mechanism receives the winding signal, the clutch device is triggered, so that Move the grass head to the winding position to enter the winding mode.
  • the switching mechanism is associated with the head casing, and in the grassing mode, the clutch device drives the head shell to move down to engage with the bobbin, and the driving device drives the bobbin and the head shell to a first direction and a first speed rotation.
  • the clutch device drives the head shell to be disengaged to the first distance, and the driving device drives the bobbin in a first direction and a first speed and The head shell disengages differential rotation, in the winding mode, the clutch device drives the head shell up to a second distance, and the driving device drives the bobbin at a second speed lower than the first speed, and Rotating in a second direction relative to the first direction.
  • the switching mechanism is associated with the bobbin.
  • the clutch device drives the bobbin up to mesh with the head shell, and the driving device drives the bobbin and the head shell to Rotating in a direction and a first speed
  • the clutch device drives the bobbin down to disengage to the first distance
  • the driving device drives the bobbin in a first direction and the first speed and the The head shell is disengaged from the differential rotation.
  • the clutch device drives the bobbin down to a second distance
  • the driving device drives the bobbin at a second speed lower than the first speed, and is opposite to the first The second direction of one direction is rotated.
  • the switching mechanism is associated with the head shell or the bobbin.
  • the clutch device drives the head shell or the bobbin to rotate so that the two are engaged, and the driving device drives the bobbin and the The head shell rotates in a first direction and at a first speed.
  • the clutch device drives the head shell or the bobbin to rotate so that the two are disengaged to the first distance, the driving device The driving bobbin rotates in a first direction and at a first speed and the head shell is disengaged.
  • the clutch device drives the head shell or the bobbin to rotate, so that the two are disengaged to the second Distance, the drive drive spool rotates at a second speed that is lower than the first speed and in a second direction relative to the first direction.
  • the lawnmower has a first main switch, a second switch, a first main switch for the user to trigger to enter the grassing mode, and a second switch for the user to trigger to enter the winding mode.
  • the lawnmower has a third switch different from the first main switch, and is activated to enter the pay-off mode when the first main switch and the third switch are triggered by the user.
  • the lawnmower wirelessly connects the mobile terminal, and the first main switch, the second switch, and the third switch are triggered by the mobile terminal, and enter a corresponding grassing mode, a winding mode, and a pay-off mode.
  • the grass cutter includes a control unit and a line length detecting device, the control unit is connected to the driving device and the switching mechanism, and the line length detecting device detects the grass
  • the length of the rope generates a corresponding grassing signal, a payout signal, and a winding signal, and is switched to the corresponding grassing mode, pay-off mode, and winding mode by the control unit.
  • the line length detecting device detects the state of the straw rope, and sends a payout signal to the control unit when the grass rope line is short, that is, less than the preset grass length, so that the grass cutter Switching to the pay-off mode, and sending a grass signal to the control unit when the grass rope is greater than the preset grass length, the grass cutter is switched to the grass-scraping mode.
  • the head shell has an outer threading hole
  • the bobbin has an inner threading hole
  • the outer threading hole and the inner threading hole are passed through the grass rope to be wound around the bobbin
  • the grass cutter includes a line length.
  • the user can receive the payout signal, the winding signal, the grass signal, and automatically switch the relative positional relationship between the head shell and the bobbin according to the signal command issued by the user.
  • the mower is switched to the corresponding grassing, winding, pay-off mode, or the line length detecting device is set by itself, and the grass cutting, winding, and pay-off modes are automatically switched according to the detection of the line length, thereby eliminating the need for the user to manually
  • the laying and winding are performed, the operation difficulty of the lawnmower is reduced, the operation steps are reduced, and the user is prevented from switching the working mode in time, so that the lawn mower is more flexible in the process of cutting grass and improves the working efficiency.
  • FIG. 1 is a schematic view of a lawnmower according to an embodiment of the present disclosure
  • Figure 2 is a schematic view of the grass head of Figure 1 including a bobbin;
  • Figure 3 is a schematic view of the grass head of Figure 1 including a threading structure
  • FIG 4 is a schematic view of the switching device of the position switching mechanism of the lawnmower of Figure 1;
  • Figure 5 is another perspective view of the portion switching device of the position switching mechanism of the grass cutter of Figure 1;
  • Figure 6 is a perspective view of a portion of the switching device of the position switching mechanism of the lawnmower of Figure 1;
  • Figure 7 is a schematic view showing the grassing machine of Figure 1 in a grassing position
  • Figure 8 is a schematic view of the lawnmower of Figure 1 in a pay-off position
  • Figure 9 is a schematic view of the lawnmower of Figure 1 in a take-up position
  • Figure 10 is a schematic view showing the meshing structure of the bobbin and the head shell when the grass-grazing machine of Figure 7 is in the grassing position;
  • Figure 11 is a schematic view showing the meshing structure of the head shell and the fixed casing in the wire-receiving position of Figure 9;
  • FIG. 12 is a schematic diagram showing the circuit structure of a lawnmower according to an embodiment of the present disclosure
  • FIG. 13 is a schematic diagram showing the circuit structure of a lawnmower according to an embodiment of the present disclosure
  • FIG. 14 is a control flow chart of a lawnmower according to an embodiment of the present disclosure.
  • FIG. 15 is a schematic structural view of a first line length detecting device of a lawnmower according to an embodiment of the present disclosure
  • 16 is a schematic structural view of a second line length detecting device of a lawnmower according to an embodiment of the present disclosure
  • FIG. 17 is a schematic structural view of a third line length detecting device of a lawnmower according to an embodiment of the present disclosure.
  • FIG. 18 is a partial structural schematic view of a third line length detecting device of a lawnmower according to an embodiment of the present disclosure.
  • Figure 19 is a control flow chart of a lawnmower according to an embodiment of the present disclosure.
  • FIG. 20 is a schematic diagram showing the circuit structure of a lawnmower according to an embodiment of the present disclosure
  • 21 is a schematic diagram of a line length detecting device of a lawnmower according to an embodiment of the present disclosure
  • FIG. 22 is a first control flow chart of a lawnmower according to an embodiment of the present disclosure.
  • FIG. 23 is a second control flow chart of a lawnmower according to an embodiment of the present disclosure.
  • Figure 24 is a third control flow diagram of the lawnmower of one embodiment of the present disclosure.
  • the lawnmower includes a head shell, a bobbin and a motor, and when the grass signal is received, the grass head is activated in a grassing mode, and the grass cutter performs a grassing operation; Receiving the payout signal, starting the grassing head in the pay-off mode, the grass-climbing machine performs a pay-off operation; when receiving the take-up signal, starting the grass-cutting head in the take-up mode, The mower is used for the closing operation.
  • a lawn mower includes a main motor 1 , a grass head 2 , a main operation device 3 , and a switching mechanism disposed near the grass cutting head. 4.
  • the lawnmower may further include a shield 5 for protecting the grass head and the grass rope connected to the grass head.
  • the main motor 1 can drive the grass head 2 to rotate about an axis 210a, thereby driving the grass rope 21 to rotate and cut the vegetation.
  • the operating device 3 is for the user to operate to control the lawnmower.
  • the rotor of the main motor 1 is coupled to the drive shaft 122.
  • the drive shaft 122 is coupled to the grass head 2 to drive the grass head 2 to rotate.
  • the grass head 2 is used for installing and accommodating the straw rope 21, and the portion of the straw rope 21 is housed inside the grass head 2, and the grass rope 21 is further extended to the grass head 2 for use in the grass head 2 Cut vegetation when rotating.
  • the grass head 2 includes a bobbin 211 and a head shell 212.
  • the bobbin 211 is used to wrap the grass rope 21 and is housed in the head shell 212.
  • the head casing 112 is formed with an outer threading hole 212a through which the grass rope 21 passes; the bobbin 211 is provided with an inner threading hole 211a, and the outer threading hole 212a of the head shell 112 and the inner thread of the bobbin 11 are threaded.
  • the grassing cord 21 passes through the outer threading hole 212a and the inner threading hole 211a and is wound onto the bobbin 211.
  • the outer threading hole of the head shell 112 may not be aligned with the inner threading inlet on the bobbin. After the grass rope passes through the outer threading hole of the head shell 112, the channel and the spool are guided through the head shell 112. The butt between the upper threading passages winds the straw 21 onto the bobbin 211.
  • the head case 212 includes an upper cover 212b and a lower cover 212c, so that the head case 212 can be easily assembled with the bobbin 211 and the user can open the head case 212 to detect the inside of the head case 212.
  • the grass head 2 may also include a spring 213 that exerts a force between the head shell 212 and the spool 211.
  • the spring 213 applies a force that causes the bobbin 211 to move away from the lower cover 212c.
  • the user When the user needs to add a new straw 21, the user relatively moves the head shell 212 and the bobbin 211 through the switching mechanism 4, thereby aligning the inner threading hole 211a and the outer threading hole 212a, and then passing the straw 21 through the outer threading.
  • the hole 212a then enters the inner threading hole 211a.
  • the drive shaft 122 is coupled to the head housing 212, which is capable of directly rotating the spool 211 about the axis 210a.
  • the bobbin 211 and the head case 212 constitute a rotational connection therebetween which are relatively rotatable, and the head case 212 is driven by the switching mechanism 4 such that the head case moves up and down with respect to the bobbin 211 in a direction parallel to the axis 210a of the bobbin 211.
  • the switching mechanism 4 includes an auxiliary motor 41 and a switching device 42. After the position switching mechanism receives the grassing signal, the pay-off signal and/or the wire-receiving signal, the auxiliary motor drives the switching device 42 to make the grass-grawing machine The grass position, the take-off position, and the take-up position are switched.
  • the switching device 42 may include a gear shaft 420, a gear 421 mounted on the gear shaft 420, a rack 423 associated with the gear 421, and a claw member associated with the rack 423. 425, the jaw member 425 can be coupled directly or indirectly to the head shell 212.
  • the present disclosure provides a lawnmower comprising: a grass head comprising a head shell, a bobbin and a motor position switching mechanism, including a switching device associated with the head shell, and an auxiliary motor
  • the driving device drives the head casing to move up and down to engage or disengage the bobbin.
  • the switching device When receiving the grass signal, the switching device is driven to drive the head shell to move to the grassing position, and the head shell meshes with the bobbin; When receiving the payout signal, the switching device is driven to move the head shell to the payout position, and the head shell is disengaged from the bobbin; when receiving the take-up signal, the switching device is driven to drive the head shell to move to the take-up line Position, the head shell and the bobbin are disengaged.
  • the position switching mechanism responds to the signal that the auxiliary motor in the position switching mechanism drives its motor shaft, and the motor shaft of the auxiliary motor is coupled with the gear shaft 420, thereby driving the gear shaft 420.
  • the upper gear 421 and the gear 421 drive the rack 423 to move up and down. Since the rack 423 is coupled with the claw member 425, the claw member 425 is engaged or coupled to the head housing 212 or to the associated member 110 associated with the head housing 212 such that the auxiliary motor drives the rack and pinion, and the rack 423 is up and down
  • the motion-driven claw member 425 engages the head housing 212 to move up and down, i.e., upward or downward in the direction of the axis 210a.
  • connection relationship refers not only to the structural connection between the two, but also to the switching mechanism 4, which can change the head shell 212 and the bobbin only by the force of the relevant force, such as the magnetic force of the magnet. Relative positional relationship.
  • the switching structure 4 is a position switching structure 4.
  • the position switching mechanism receives the grassing signal, if the lawnmower is already in the grassing position, the auxiliary motor drive gear 121 on the position switching mechanism does not act or does not drive the motor, and the lawnmower is still in the first A position or a grass position.
  • the grassing position of the lawnmower is the reset position of the lawnmower, which is 0.
  • the grass cutter is in the grassing position, the bobbin 211 is engaged with the head shell 212, and the bobbin 211 is driven by the main motor 1 to rotate at a high speed.
  • the main motor of the lawnmower rotates forward, that is, forward rotation, through the stopper 231 on the bobbin 211 and the limiting member 212d on the head shell 212 when the motor rotates forward.
  • Engage the bobbin 211 and the head shell 212 rotate together at a high speed.
  • the mower main motor drive bobbin 211 is rotated in the forward direction, and since the bobbin 211 is engaged with the head case 212, the bobbin 211 and the head case 212 are rotated at a high speed.
  • the stopper 231 on the bobbin 211 is composed of a stop surface and an inclined surface; the limiting member 212d on the head shell 212 includes a limiting surface, and the bobbin is rotated when the main motor rotates forward.
  • the stop surface of the 211 abuts against the limiting surface of the head shell 212, and the bobbin 211 rotates at a high speed together with the head shell 212.
  • the position switching mechanism When the position switching mechanism receives the payout signal, if the lawnmower is originally in the grassing position, after receiving the payout signal, the position switching mechanism drives the auxiliary motor, and the auxiliary motor drives the rack and pinion to be driven by the rack and pinion and the claw member.
  • the head shell is moved up, for example, moved up to 3.5 mm, so that the head shell 212 is disengaged from the bobbin 211, that is, the switching device of the position switching mechanism drives the head shell to move to the second position or the pay-off position, which is the first gear. As shown in Fig.
  • the lawnmower is in the pay-off position, the head shell 212 is disengaged from the bobbin 211, and the bobbin 211 is driven by the main motor to maintain a high speed forward rotation, and a speed difference is formed with the head shell 212 to perform the payout.
  • the position switching mechanism When the position switching mechanism receives the wire receiving signal, if the lawnmower is originally in the grassing position, after receiving the wire receiving signal, the position switching mechanism drives the auxiliary motor, and the auxiliary motor drives the gear rack, which is driven by the rack and pinion and the claw member.
  • the head shell is moved up, for example, moved up to 7 mm, that is, in the take-up position, the head shell 212 is moved up or raised by a distance greater than the line position, so that the head shell 212 is disengaged from the bobbin 211 and
  • the head shell 212 is further engaged with the fixed housing 10, that is, the switching device of the position switching mechanism drives the head shell up to the third position or the take-up position, which is the second gear. As shown in FIG.
  • the grass cutter is in the take-up position, the head shell 212 is disengaged from the bobbin 211, and further meshed with the fixed casing 10. Since the fixed casing 10 is fixed, the head casing 11 is fixed together with the fixed casing 10.
  • the bobbin 211 is driven by the main motor and reversed at a low speed to realize winding.
  • the position switching mechanism is used to assist the motor drive switching device to move the head case up and down.
  • other mechanical structures may be employed as long as the head case 11 can move up and down.
  • the spool 13 is engaged or disengaged.
  • the above-described driving of the main motor and the auxiliary motor can be realized by the circuit configuration shown in FIG.
  • the circuit structure mainly includes: a battery pack, a control unit 6, a driving circuit 7, a main motor, an auxiliary motor in the position switching mechanism, and three operation switches SW1 and SW2 corresponding to three operations of controlling grassing, winding and paying respectively. , SW3.
  • the control unit 6, the drive circuit 7, and the operation switch SW1 responsible for controlling the grassing operation may be disposed in the vicinity of the main operation device 3 of the lawnmower.
  • the operation switch SW2 responsible for controlling the winding operation can be disposed near the grass head 2.
  • the operation switch SW2 responsible for controlling the pay-off operation may be disposed near the sub-handle 31 of the lawn mower in FIG.
  • the battery pack is used as the power supply device, and the output voltage of the battery pack is boosted and regulated by the corresponding circuit unit, and the power is supplied to the control unit 6, the drive circuit 7, the main motor, and the position switching mechanism.
  • the buck-boost and voltage-stabilization processing can be realized by a voltage regulating circuit or a filter circuit composed of separate components, or can be realized by an existing power chip.
  • the control unit 6 is configured to output a corresponding control signal to the drive circuit 7 or the position switching mechanism according to the on/off states of the three operation switches SW1, SW2, and SW3, and respectively control the drive circuit 7 to output a drive signal to drive the main motor 1 to operate.
  • the auxiliary motor 41 in the control position switching mechanism drives the switching device 42 to switch the grass cutter at the grassing position, the pay-off position, and the take-up position.
  • the drive circuit 7 is electrically connected to the three-phase electrodes U, V, W of the main motor 1 to drive the motor to operate.
  • the driving circuit 7 specifically includes a switching circuit for changing the conduction state according to the control signal output by the control unit 6 to output a driving signal to the three-phase electrode of the motor, and the driving signal controls the motor
  • the rotor is running.
  • the drive circuit 7 has an input end and an output end. As shown in FIG. 12, the switching circuit includes switching elements VT1, VT2, VT3, VT4, VT5, VT6.
  • the switching elements VT1-VT6 are exemplified by a field effect transistor, and the gate end thereof is used as an input end of the driving circuit 7, and is electrically connected to a control signal of the control unit 6, respectively, and each drain or source of the switching element is respectively connected to the motor.
  • the stator is electrically connected.
  • the switching elements VT1-VT6 sequentially change the conduction state according to the control signal output by the control unit 6, thereby changing the voltage state of the battery pack loaded on the winding of the brushless motor, and generating a cross on the winding.
  • the varying magnetic field drives the rotor of the motor to operate by the alternating magnetic field.
  • the driving circuit 7 has a plurality of driving states for rotating the brushless motor, and a stator generates a magnetic field in a driving state, and the control unit 6 is configured to output a corresponding control according to the rotor rotational position of the motor.
  • the signal is applied to the drive circuit 7 to cause the drive circuit 7 to switch the drive state, thereby rotating the magnetic field generated by the stator to drive the rotor to rotate, thereby driving the brushless motor.
  • the rotor rotational position of the motor in one embodiment of the present disclosure, can be obtained by position estimation of the phase current and/or bus current of the motor.
  • the control unit 6 further outputs a corresponding PWM control signal to the auxiliary motor according to the on-off states of the three operation switches SW1, SW2, and SW3 to drive the
  • the motor of the auxiliary motor rotates in a corresponding direction in a certain direction
  • the motor shaft of the auxiliary motor drives the switching device 42 to drive the gear shaft 420, the gear 421 mounted on the gear shaft 420, the rack 423 coupled to the gear 421,
  • a claw member 425 coupled to the rack 423, the head shell 212 that directly or indirectly couples the claw member 425 switches the grass cutter at the grassing position, the pay-off position, and the take-up position.
  • the three operation switches SW1, SW2, and SW3 respectively correspond to the first main switch, the second switch, and the third switch, for the user to operate the lawnmower.
  • Step S11 is performed: the grass head is set to stay in the grassing position by default.
  • Step S12 When it is detected that the winding switch SW2 is triggered, step S13 is performed: the control unit 6 controls the auxiliary motor in the position switching mechanism, and the auxiliary motor drives the claw member to drive the head shell of the grass cutter to make the hitting The grass machine goes to the winding position.
  • Step S13 The button time is greater than T1S. At this time, in step S15, the control unit 6 can synchronously control the drive circuit 7 to invert the motor for winding.
  • Step S16 During the winding process, if it is detected that the duration of the triggering of the winding switch SW2 exceeds T1s, or the winding switch SW2 is detected to be over T2s and is not triggered, step S17 is executed, the motor brakes an error signal, and step S18 is performed. Then the control unit 6 judges that the winding should be ended. Upon completion of the winding, the control unit 6 outputs a corresponding control signal to the auxiliary motor to drive the grass head back to the default grassing position. When the result of S16 is NO, the S139 motor winding stop is executed.
  • Step S19 is executed.
  • step S110 is executed.
  • the control unit 6 controls the driving circuit 7 to drive the main motor 1 to rotate at a high speed, and the grass-cutting machine enters the grass-riding state, and the grass rope is driven and rotated by the main motor. Perform cutting operations.
  • step S113 is performed, and it is further detected whether the payout switch SW3 is triggered.
  • step S114 is executed, and once the payout switch SW3 is triggered to exceed T3s, it is judged that the payout is required.
  • the control unit 6 further controls the auxiliary motor in the position switching mechanism while maintaining the high speed forward rotation of the main motor, and the auxiliary motor drives the claw shell to drive the head shell of the grass cutter to make the grass The machine goes to the release position.
  • step S116 is performed, and the control unit 6 outputs a corresponding control signal to the auxiliary motor to drive the grass head back to the default grassing position.
  • the time intervals T1, T2, and T3 are used to avoid false triggering of the operation switch, and the lawn mower is prevented from being erroneously switched between the winding mode, the pay-off mode, and the grass-scraping mode due to the false triggering of the operation switch.
  • the winding and grassing and discharging functions cannot be realized at the same time: if the winding and grass switching switches are pressed at the same time, the motor will stop running and the system will report an error; if the winding and discharging switches are pressed at the same time, If the grass switch is not pressed, the machine will implement the winding function, and the function of the pay-off will not be realized, and no functional conflict will occur. This is because the pay-off function is only effective in the high-speed grass-grazing mode. If you do not press the grass switch, just press the pay-off switch to make the speed difference and release the line.
  • the motor will stop winding after the winding (T2s-T1s).
  • the position switching mechanism drives the grass head to return from the winding position to the grassing position.
  • grass The length of the winding in the head is limited, so that it does not wrap too much wire into the grass head; secondly, the rotation speed of the brushless motor in the reverse winding is very low, and a control method similar to a sine wave is used, leaving a certain The remaining amount of time after the winding time is stopped, which can further protect the motor and prevent damage.
  • step S111 the grass switch SW1 is released, and in step S112, the motor brake position switching device controls the grass head to return to the grassing position.
  • the mechanical structure of the lawnmower is similar to that of the previous embodiment, except that, referring to FIG. 13, the main motor 1 in the embodiment is implemented by using a brush motor and passing through the line.
  • the long detecting means replaces the operation switch SW3 in the previous embodiment to realize automatic control of the payout.
  • the driving circuit 7 in this embodiment can be implemented by selecting a dedicated driving chip, or the driving circuit 7 can be driven by a switching element such as a thyristor to realize driving of the brush motor. .
  • the drive circuit 7 for the brushed motor is not commonly described herein as a technique commonly used in the art.
  • Step S21 is executed, and the grass head is stopped at the grassing position.
  • Step S29 is executed, the lawnmower operates in a high speed, forward rotation state: step S212 is performed. If the grass rope line is detected to be short, the position switching mechanism is activated to respond, and the grass head is raised to the first gear to perform the release; S213, once the grassing rope is detected to be normal, the position switching mechanism responds, and step S214 is executed, the grassing shell is lowered, the file is returned to the 0th gear, and the grass is continued.
  • step S211 is executed, and the motor brake position switching mechanism controls the grass head to return to the grassing position.
  • the retracting logic in this embodiment is as follows.
  • the winding logic the lawn mower works at a low speed, reverse state: step S22 is performed, the winding switch is pressed, the wire receiving signal is triggered, step S23 is performed, the position switching mechanism responds, the grass head is lifted to the second gear, and execution is performed.
  • step S24 the main motor is low speed and reversed to realize the winding.
  • the straw head casing 212 is separated from the bobbin 211 and engaged with the fixed casing 10
  • the straw rope is driven by the reversed bobbin and is housed in the head casing.
  • step S25 is executed, the winding switch SW2 is released, or when the time when the winding switch SW2 is triggered reaches the preset winding length T2s, the position switching mechanism responds, and steps S26, S27 are performed to lower the grass head shell 11, At the same time, the motor stops.
  • the grass cutter can move the grass head to the grassing position or the pay-off position or the take-up position by the clutch device.
  • the clutch device causes the head shell of the lawnmower to engage with the spool or correspondingly disengage a specific distance to achieve switching of the grassing position, the pay-off position or the take-up position.
  • the clutch device may adopt the structure of the switching device 42 in the previous embodiment, or may be controlled by the control unit 6 through other mechanical structures, such as a relay driven by the control unit 6. The positional switching is performed such that the head shell or the bobbin of the lawnmower is correspondingly engaged or disengaged.
  • the clutch device is also designed to control the distance the head housing is disengaged from the spool.
  • a grass cutter comprising: a motor; a grass head, including a head shell, a bobbin; a clutch device, associated with the head shell and/or the spool The clutch device is triggered to engage or disengage the head shell and the bobbin.
  • the clutch device When receiving the grass signal, the clutch device is triggered to move the grass head to the grassing position, and the head shell is engaged with the bobbin; When the line signal is triggered, the clutch device is triggered to move the grass head to the pay-off position, and the head shell and the bobbin are disengaged to a first distance; when the take-up signal is received, the clutch device is triggered to move the grass head to the take-up position The head shell and the bobbin are disengaged to a second distance.
  • the stopper 231 on the bobbin 211 since the stopper 231 on the bobbin 211 includes an inclined surface, the limiting member 212d on the head casing 212 includes a finite plane, and the bobbin 211 is stopped under the payout or take-up logic.
  • the gear surface is disengaged from the limiting surface of the head shell 212, and the grass rope is wound or loosened in the gap on one side of the inclined surface. Since the friction against the grass rope is small, the torque required to drive the straw to be tight or loose is smaller, and the wear on the straw is smaller. Therefore, the grass head structure according to the present disclosure can protect the grass rope from being worn easily while realizing the winding or paying off control of the grass rope.
  • the motor in the reverse winding state, since the resistance to the diagonally facing grass rope is smaller, the torque required to drive the straw winding is smaller, that is, the motor can be wound to provide a smaller torque to achieve winding.
  • the winding current is reduced so that the winding current is less than or equal to 3 amps. That is to say, the grass head structure provided by the present disclosure can drive the main motor to drive the grass rope with a small reverse current due to the inclined surface, and realize the winding with a small reverse torque.
  • the grass head structure provided by the present disclosure can also reduce the current required for the motor to reverse drive, further protecting the motor.
  • the following table is the test data of the winding current of the grass head in the winding mode according to the embodiment. Since the bobbin is separated from the head casing in the winding mode in this embodiment, the winding current is significantly improved. The winding current is only 1/4 of the current of the existing lawn mower.
  • the lawnmower includes: a motor; a grass head, including a head shell and a bobbin; and when receiving a grass signal, starting the grass head in a grassing mode, the grass The machine performs a grassing operation; when receiving the payout signal, the grassing head is started in the pay-off mode, and the grass-cutting machine performs the laying operation.
  • the line length detecting device 50a shown in Fig. 15 includes a micro switch 51 disposed in the lawnmower shield 5, and a striker 52 is disposed at a position opposite to the contact of the micro switch, and the striking member 52 passes A connector 53 is coupled to the shield 5.
  • the straw rope is driven to rotate by the grass head, and the grass rope is rotated, and the striker 52 is periodically hit within a certain line length range, and the striker 52 is struck to trigger the micromotion.
  • the switch 51, the contact of the microswitch is periodically triggered by the striker 52 to generate a periodic electrical signal.
  • the control unit 6 Once the control unit 6 is able to detect the periodic electrical signal, it can be determined that the rope length of the straw rope is within the normal range. When the straw rope becomes short and cannot touch the striker 52, the periodic electrical signal is turned off, whereby the control unit 6 can determine that the payout signal is received, and the grass cutter is driven to enter the payoff line. Status, the corresponding take-off operation. That is, in the grassing state, the control unit 6 receives the normal signal of the micro switch 51, and uses the normal signal as the payout signal to drive the lawnmower to enter the pay-off state, and performs a corresponding pay-off operation.
  • the line length detecting device 50b shown in Fig. 16 also includes a micro switch 51 provided in the lawnmower shield 5 and a striking member 52 which is coupled to the shroud 5 via a connecting member 53.
  • the line length detecting device shown in Fig. 16 differs from the previous embodiment in that it further includes an elastic structure 54.
  • the elastic structure connects the connecting member 53 and the shroud 5 such that the striking member releases the triggering of the micro switch 51 in a state of being struck by the straw.
  • the contact of the micro switch is triggered only to generate an electrical signal when the cord length is shortened so that the striker cannot be hit.
  • control unit 6 Once the control unit 6 is able to detect the electrical signal, it can be determined that the length of the rope of the straw rope is insufficient to be released. That is, in the apparatus shown in Fig. 16, the control unit 6 judges the payout signal in the opposite manner to the previous embodiment. That is, in the grassing state, the control unit 6 receives the trigger signal of the micro switch 51, and uses the trigger signal as the payout signal to drive the lawnmower to enter the pay-off state, and performs a corresponding pay-off operation.
  • the wire length detecting device 50c includes a striking member 52 that is attached to the inner side of the shroud by a resilient means 55.
  • a Hall element 57 and a magnet 58 are also disposed oppositely on the elastic device 55 or on the outer casing 56 surrounding the striker 52.
  • the striking member 52 is periodically struck by the rotating grass rope to drive the elastic device 55 to periodically displace.
  • the elastic device 55 is displaced to drive the Hall element 57 and the magnet 58 to move relative to each other to produce a positional change.
  • the Hall element 57 induces an electrical signal when approaching the magnet 58, and the electrical signal decreases as it moves away from the magnet.
  • the position of the Hall element and the position of the magnet are respectively set, and the electric signal generated by the Hall element sensing magnet can determine whether the striking member is struck by the grass rope, thereby determining whether the strapping needs to be controlled.
  • the grass head enters the pay-off mode.
  • the position of the Hall element 57 and the magnet 58 is shifted correspondingly, and the Hall element is disposed on the opposite side of the position where the magnet is located when the striking member is struck by the straw.
  • the above-mentioned detection of the length of the straw line can be implemented by the opposite logic. Under such a setting, the straw rope can not be hit after the wear of the straw rope becomes short, and the Hall element can not detect the magnet correspondingly, and a low-level signal is generated, and the signal is used as the pay-off signal to control the lawnmower. Enter the release state.
  • the mechanical structure of the lawnmower is similar to that of the above embodiment, except that, referring to FIG. 20, the operation in the previous embodiment is replaced by the line length detecting device 50d in this embodiment.
  • the switch SW2 generates a wire-receiving signal to realize automatic control of the winding.
  • the lawnmower may include: a motor; a grass head, including a head shell and a bobbin; and when the grass signal is received, the grass head is activated in a grassing mode, the hitting The grass machine performs a grass-graining operation; when receiving the wire-receiving signal, the grass-carrying head is started in the wire-receiving mode, and the grass-cutting machine performs the wire-removing operation.
  • the line length detecting device 50d can be set in the manner shown in FIG.
  • the structure is disposed in the grass head, and detects that the grass rope is limited by the outer threading hole 212a to trigger an electrical signal.
  • the control unit 6 determines that the grass cutter is switched to the winding mode. .
  • the grass cutter is brought into the winding position, and the straw 21 is gradually wound on the bobbin 211 as the outer threading hole 212a moves relative to the bobbin 211.
  • both the winding and the pay-off modes can be controlled in a fully automatic manner without manual judgment.
  • the lawnmower may include: a motor; a grass head, including a head shell and a bobbin; and when the grass signal is received, starting the grass head in a grassing mode, The grass-carrying machine performs a grass-graining operation; when receiving the pay-off signal, the grass-crushing head is activated in a pay-off mode, and the grass-grawing machine performs a pay-off operation; when receiving the wire-receiving signal, the start-up station The grass cutter is in the take-up mode, and the grass cutter performs the take-up operation.
  • Step S31 is performed, and the grass head is set to stay at the grassing position by default.
  • Step S32 is executed.
  • step S33 is executed.
  • the control unit 6 controls the auxiliary motor in the position switching mechanism.
  • the auxiliary motor drives the claw member to drive the head shell of the grass cutter to enable the grass cutter to go. Winding position.
  • the control unit 6 can synchronously control the drive circuit 7 to invert the motor for winding.
  • Step S34 in the winding process, if it is detected that the effective duration of the winding signal does not exceed T1s, or the effective length of the winding signal is detected to exceed T2s, steps S35, S36 are performed, and step S37 is performed, then the control unit 6 determines The winding should be finished. Upon completion of the winding, the control unit 6 outputs a corresponding control signal to the auxiliary motor to drive the grass head back to the default grassing position.
  • step S39 is performed to cause the motor to be wound around.
  • the control unit 6 controls the drive circuit 7 to drive the main motor 1 to rotate at a high speed, the grass cutter enters the grassing state, and the grass rope is driven by the main motor to perform the cutting operation. In the grassing state, it is further detected whether a payout signal is received.
  • the control unit 6 further controls the auxiliary motor in the position switching mechanism while maintaining the high-speed forward rotation of the main motor, and the auxiliary motor drives the claw shell to drive the head shell of the lawnmower, so that the lawnmower goes to the line. position.
  • the control unit 6 always maintains the driving of the main motor by the drive circuit 7, and the head case 212 is disengaged from the bobbin 211 by the rack and pinion, and the bobbin 211 is subjected to a speed difference between the main motor drive and the head case 212, thereby The straw rope is loosened and the line is released.
  • the control unit 6 outputs a corresponding control signal to the auxiliary motor to drive the grass head back to the default grassing position.
  • the winding signal described in this embodiment can be triggered by the operation switch SW2 or automatically by the line length detecting device.
  • the payout signal can be triggered by the operation switch SW3, or can be automatically detected by the line length detecting device.
  • the operating switches or detecting devices are independent of one another. Therefore, optionally, the present disclosure may also implement separate control of the winding state or the pay-off state separately.
  • the lawnmower may include: a motor; a grass head, including a head shell and a bobbin; and when the payout signal is received, starting the grass head in a pay-off mode, The lawnmower performs the line-lifting operation; when the wire-receiving signal is received, the grass-crushing head is started in the wire-receiving mode, and the grass-cuttering machine performs the wire-removing operation.
  • FIG. 23 is a flow chart showing the control unit 6 separately controlling the pay-off state.
  • step S41 the grass head is stopped at the grassing position, and step S42 is performed.
  • the pay-off signal is triggered by the operation switch SW3, and can also be automatically generated by the line length detecting device.
  • Step S43 is performed, and after step S44 is performed, step S45 is executed, the lawnmower brakes, and the grass head is returned to the grassing position.
  • step S46 when step S47 occurs, it is judged that the payout is required once the payout signal is triggered to exceed T3s. At this time, the control unit 6 performs step S48 while maintaining the high speed forward rotation of the main motor, and further proceeds to step S49 to control the auxiliary motor in the position switching mechanism, and the auxiliary motor drives the head shell of the grass cutter through the rack and pinion driving claw member. , so that the lawnmower goes to the release position.
  • control unit 6 always maintains the driving of the main motor by the drive circuit 7, and the head case 212 is disengaged from the bobbin 211 by the rack and pinion, and the bobbin 211 is subjected to a speed difference between the main motor drive and the head case 212, thereby The straw rope is loosened and the line is released.
  • control unit 6 outputs a corresponding control signal to the auxiliary motor to drive the grass head back to the default grassing position.
  • Fig. 24 is a flow chart showing the control unit 6 separately controlling the winding state.
  • Step S51 is executed, the grass head is stopped at the grassing position, and when the step S52 is excited, the winding signal is received, and step S53 is performed, the position switching mechanism controls the grass head to go to the winding position, and S54 is when the effective signal time is greater than T1s.
  • Step S55 is executed. When the effective signal time is greater than T2s, that is, step S56, step S58 is executed, S59 strikes the brake error signal, and the position switching mechanism controls the grass head to go to the grassing position. Otherwise, step S57 is excited and the motor is stopped.
  • the grass switch When the S510 is activated, the grass switch is pressed, SW1, the step S511 is executed to rotate the motor at a high speed, and when the step S512 is executed, the step S513 is executed, and the motor brakes the grass back to the grassing position.
  • the winding signal is triggered by the operation switch SW2, and can also be automatically generated by the line length detecting device.
  • the control unit 6 controls the auxiliary motor in the position switching mechanism, and the auxiliary motor drives the claw shell to drive the head shell of the grass cutter to drive the grass cutter to the winding position.
  • the control unit 6 can synchronously control the drive circuit 7 to invert the motor for winding.
  • the control unit 6 determines that the winding should be ended.
  • the control unit 6 can also output a corresponding control signal to the auxiliary motor to drive the grass head back to the default grassing position.
  • the grassing head when the lawnmower receives the grassing signal, the grassing head is started in the grassing mode, and the grassing machine performs the grassing operation; when the grasshopper Receiving the payout signal, starting the grassing head in the pay-off mode, the grass-climbing machine performs a pay-off operation; when receiving the take-up signal, starting the grass-cutting head in the take-up mode, The mower is used for the closing operation.
  • a lawnmower comprising: a grass cutter comprising a head shell 212 and a spool 211; a main motor operatively coupled to the spool 211 to drive the spool 211 Cutting the vegetation in the grassing mode, or paying the line in the pay-off mode, and winding in the winding mode;
  • the switching mechanism 4 includes a switching device 42 associated with any one of the head shell 212 and the bobbin 211, Driving the switching device 42 to drive one of the head case 212 and the bobbin 211 to move up and down to engage or disengage the other of the head case 212 and the bobbin 211;
  • the switching device 42 When the switching mechanism 4 receives the grassing signal, the switching device 42 is driven to drive the head shell 212 to move to the grassing position to enter the grassing mode, at which time the head shell 212 is engaged with the bobbin 211; 4, when the payout signal is received, the switching device 42 is driven to drive the head shell 212 to move to the pay-off position to enter the pay-off mode, at which time the head shell 212 and the bobbin 211 are disengaged to a first distance; when the switching mechanism 4 receives When the winding signal is applied, the switching device 42 is driven to move the head shell 212 to the winding position to enter the winding mode, and the head shell 212 and the bobbin 211 are disengaged to the second distance.
  • the first distance is smaller than the second distance, that is, the distance between the head shell 212 and the bobbin 211 in the winding mode is farer than the distance between the head shell 212 and the bobbin 211 in the pay-off mode.
  • the first distance and the second distance are designed according to the specific structure of the grass head, thereby ensuring that the head shell 212 moves to a corresponding position in different working modes, and the grass cutter is ensured The accuracy of automatic winding and automatic take-off.
  • the user can receive the payout signal, the winding signal, the grass signal, and automatically switch the lawnmower to the corresponding grassing mode according to the signal command issued by the user. Therefore, the user does not need to manually perform the paying and winding, which reduces the operation difficulty of the lawnmower, reduces the operation steps, prevents the user from switching the working mode in time, and makes the grasser more flexible during the grass cutting process, thereby improving the flexibility. Its work efficiency.
  • the head housing 212 includes an associated member 110.
  • the switching device 42 includes a gear shaft 420 coupled to the main motor shaft, a gear 421 mounted on the gear shaft 420, and a rack 423 engaged with the gear 421 coupled to the rack 423.
  • the claw member 425 wherein the claw member 425 is associated with the associated member 110 of the head case 212, and the claw member 425 is coupled to the associated member 110 of the head case 212.
  • the switching device 42 can be driven to move up and down by the auxiliary motor 41 to drive the head casing 212 to switch to different positions to quickly and effectively change the same.
  • the grassing mode, the pay-off mode, and the winding mode thereby realizing the automatic switching of the lawnmower in the grass-grazing mode, the winding mode, and the pay-off mode.
  • the bobbin 211 may include a bobbin 211 associated member 110.
  • the switching device 42 includes a gear shaft 420 coupled to the main motor shaft, a gear 421 mounted on the gear shaft 420, and a tooth meshing with the gear 421. a strip 425 coupled to the rack 423, wherein the claw member 425 is associated with the spool 211 associated member 110, and the associated member 110 of the head shell 212 is no longer disposed.
  • the bobbin 211 is connected by the switching device 42 and the drive spool 211 is moved to drive the bobbin 211 and the head shell 212 to engage or disengage.
  • the main motor driving bobbin 211 rotates in the first direction and the first speed and the head shell 212.
  • the main motor drives the bobbin 211 in the first direction and A speed and the head shell 212 are disengaged from differential rotation.
  • the main motor drive spool 211 In the winding mode, the main motor drive spool 211 is rotated in a second direction relative to the first direction. In the winding mode, the main motor drive spool 211 rotates at a second speed lower than the first speed. Therefore, in the winding mode, the bobbin 211 and the head shell 212 are rotated slowly relative to each other, and the grassing rope 21 is wound around the bobbin 211 to achieve the purpose of automatic winding in an orderly manner. And improve the accuracy of automatic winding and winding efficiency.
  • the auxiliary motor 41 drives the switching device 42 to move the head shell 212 downward, so that the head shell 212 and the bobbin 211 are engaged, so that the main motor drives the meshing
  • the bobbin 211 and the head shell 212 rotate at a same speed in the first direction to drive the grass rope 21 in the grass head to rotate at high speed to realize the function of semi-automatic switching of the grassing mode.
  • the auxiliary motor 41 drives the head case 212 to move up, the head case 212 and the bobbin 211 are disengaged, and the bobbin 211 is rotated by the main motor, thereby making The bobbin 211 is differentially rotated with respect to the head shell 212 to discharge the grassing cord 21 wound around the bobbin 211 to realize the function of automatic pay-off.
  • the lawnmower has a first main switch, the first main switch is for the user to trigger to enter the grassing mode, the head shell 212 is engaged with the bobbin 211, and the main motor driving bobbin 211 and the head shell 212 rotate together at a high speed.
  • the lawnmower has a second switch, and the second switch is used by the user to trigger the startup into the winding mode.
  • the grass cutter has a third switch different from the first main switch.
  • the grass enters the pay-off mode, and the head shell 212 is disengaged from the bobbin 211, and the main motor is driven.
  • the bobbin 211 is rotated at a high speed to promote the speed difference with the head casing 212.
  • the first main switch, the second switch, and the third switch may be implemented as one or a combination of a mechanical button, a touch screen button, and a voice recognizer.
  • a mechanical button or a touch screen button the first The main switch, the second switch, and the third switch are disposed at suitable positions of the lawnmower.
  • voice commands can be set, such as voice "grassing", “winding” ", "discharge”, respectively, as the activation command of the first main switch, the second switch, and the third switch. Reduce the user's operating procedures in the use of the lawnmower, improve the efficiency of grassing.
  • the grass-carrying machine wirelessly connects the mobile terminal, and sends the grass-sending signal, the winding signal, the pay-off signal, and the corresponding grass-feeding mode, the winding mode, and the pay-off mode through the mobile terminal.
  • the lawnmower wirelessly connects at least one mobile terminal, sends a grass signal to the grass cutter to trigger a grassing mode, or sends a winding signal to the grasser to trigger a winding mode, or sends a payoff signal to the The grass cutter triggers the payout signal.
  • the mobile terminal is connected to the control unit 6 by wireless. Therefore, the user can send a grass-sending signal, a winding signal, a pay-off signal, and receive the signal according to the signal by the mobile terminal, such as a mobile phone, a smart watch, or the like.
  • the information converts the lawnmower to a corresponding grassing mode, thereby eliminating the need to press the mechanical mechanism, prolonging the service life of the lawnmower, reducing the manufacturing cost, and facilitating the user's real time on the grass cutter. Control.
  • the user can easily switch the working mode of the lawnmower through the first main switch, the second switch and the third switch, and only need to press the corresponding button or issue a related voice command when the user uses the lawnmower. It can realize semi-automatic winding, paying, and grassing functions.
  • the lawnmower comprises a control unit 6, the control unit 6 is operatively connected to the switching mechanism 4 and the main motor, and the control unit 6 controls the station according to the grass signal, the payout signal, and the winding signal.
  • the switching mechanism 4 and the main motor are in an operating state corresponding to the grassing mode, the pay-off mode, and the winding mode.
  • the grassing signal, the pay-off signal, and the winding signal may be sent by the user during the operation of the lawnmower according to the demand for grass and the situation of the lawnmower by pressing the switch or by the mobile terminal.
  • the signal generates a corresponding grassing signal, a payout signal, a winding signal, and the control unit 6 controls the main motor and the switching mechanism 4 according to the corresponding signal, so that the lawnmower enters a corresponding working mode.
  • the grassing signal, the payout signal, and the winding signal may also be a state in which the grasser itself detects the grassing rope 21, and when it is necessary to change its working mode to meet the working demand of the grassing rope 21,
  • the grasshopper itself generates a corresponding work signal, and controls the grasshopper to automatically switch the working mode of the grasser to achieve the fully automatic grassing mode to the winding mode, the pay-off mode to the grassing mode, State switching from grass mode to release mode.
  • the lawnmower includes a line length detecting device 6, and the line length detecting device 6 detects the state of the grassing rope 21, and sends when the grassing rope 21 line is short, that is, less than the preset grassing length. Sending a signal to the control unit 6, causing the lawnmower to switch to the pay-off mode, and sending a grass signal to the control unit 6 when the grass rope 21 is greater than the preset grass length The lawnmower is switched to the grassing mode.
  • the preset grass length is greater than the grass hitting requirement in the actual working process of the grass cutter, which is greater than the minimum grass length required for the grass hitting process, and is smaller than the grass rope 21 a total length, so the preset grass length can be implemented as a value in the minimum grass length and the length of the grass rope 21, and the grass rope 21 is detected relative to the preset grass length
  • the relative relationship sends a working signal.
  • the line length detecting device 6 can indirectly detect the rope length of the grassing rope 21 by directly detecting the rope length of the grassing rope 21 or by detecting the relevant parameters of the grassing rope 21.
  • the head shell 212 has an outer threading hole 212a, and the bobbin 211 has an inner threading hole, and the outer threading hole 212a and the inner threading hole are passed through the grass rope 21 to be wound around the bobbin 211, the grass cutter Including the line length detecting device 6, when detecting that the grass cutter has a threading action or the grass rope 21 is restrained at the threading hole, sending a winding signal to the control unit 6 to make the grass The machine switches to the winding mode.
  • the line length detecting device 6 can be implemented as the structure described in any embodiment of the present disclosure, and will not be described in detail herein.
  • a lawnmower comprising:
  • the grass head comprises a head shell 212 and a bobbin 211, and the bobbin 211 is used for winding the grass rope 21, the head shell 212 is for accommodating the bobbin 211 and is formed with a threading hole for the grass rope 21 to pass through; the main motor is operatively Coupling with the bobbin 211 to drive the bobbin 211 to cut the vegetation in the grassing mode, or to perform the payout in the pay-off mode, and to perform the winding in the winding mode, wherein in the grassing mode, the main motor is driven
  • the bobbin 211 is rotated in a first direction and at a first speed;
  • the switching mechanism 4 includes a switching device 42 associated with the head housing 212 and an auxiliary motor 41 for driving the switching device 42 to drive the head housing 212 to move up and down; when the switching mechanism 4 When the grass signal is received, the auxiliary motor 41 drives the switching device 42 to move the head shell 212 to the grassing position to enter the grassing mode; when the switching mechanism 4 receives
  • the head case 212 includes an associated member 110
  • the switching device 42 includes a gear shaft 420 axially coupled to the auxiliary motor 41, a gear 421 mounted on the gear shaft 420, and a rack 423 engaged with the gear 421.
  • a jaw member 425 coupled to the rack 423, wherein the jaw member 425 is coupled to the associated member 110 of the head shell 212.
  • the main motor may be disposed in the grass head or may be disposed at some place of the grass cutter without limitation.
  • a lawnmower comprising:
  • a driving device a grass head comprising a head shell 212 and a bobbin 211; the driving device being operatively coupled to the bobbin 211 for driving the bobbin 211 to cut vegetation in the grassing mode, or to perform paying in the pay-off mode, And winding in the winding mode;
  • the switching mechanism 4 includes at least a clutch device associated with any one of the head housing 212 and the spool 211, the clutch device being triggered to urge the head housing 212 to engage or disengage the spool 211;
  • the clutch device When the switching mechanism 4 receives the grassing signal, the clutch device is triggered to move the grass head to the grassing position to enter the grassing mode, at which time the head shell 212 is engaged with the bobbin 211; when the switching mechanism 4 receives When the signal is released, the clutch device is triggered to move the grass head to the pay-off position to enter the pay-off mode, at which time the head shell 212 and the bobbin 211 are disengaged to a first distance; when the switching mechanism 4 receives the winding signal When the clutch device is triggered, the grass head is moved to the winding position to enter the winding mode.
  • the switching mechanism 4 is coupled to the head case 212.
  • the clutch device drives the head case 212 to move downward to engage with the bobbin 211, and the grass head moves to a grassing position
  • the driving device drives the bobbin 211 and the head shell 212 to rotate in a first direction and at a first speed; in the pay-off mode, the clutch device drives the head shell 212 to be disengaged to the first distance, Moving the grass head to the pay-off position, the driving device driving the bobbin 211 is rotated in a first direction and at a first speed and the head shell 212 is disengaged.
  • the clutch device drives the The head shell 212 is moved up to a second distance such that the grass head moves to a winding position, and the drive device drives the spool 211 to rotate at a second speed lower than the first speed and in a second direction relative to the first direction.
  • the clutch device may be coupled to the bobbin 211 and the displacement of the bobbin 211, and the switching mechanism 4 is coupled to the bobbin 211.
  • the clutch device drives the bobbin 211 to move up and The head shell 212 is engaged, the grass head moves to a grassing position, and the driving device drives the bobbin 211 and the head shell 212 to rotate in a first direction and at a first speed, in the pay-off mode,
  • the clutch device drives the bobbin 211 to move down to the first distance, so that the grass head moves to the pay-off position, and the driving device drives the bobbin 211 in the first direction and the first speed and the head shell 212.
  • the clutch device drives the bobbin 211 to move down to a second distance, so that the grass head moves to the winding position, and the driving device drives the bobbin 211 to be lower than the first a second speed of speed and a second direction relative to the first direction.
  • the switching mechanism 4 is coupled to the head shell 212 or the bobbin 211.
  • the clutch device drives the head shell 212 or the bobbin 211 to rotate so that the two are engaged.
  • the driving device drives the bobbin 211 and the head shell 212 to rotate in a first direction and at a first speed.
  • the clutch device drives the head shell 212 or The bobbin 211 is rotated such that the two are disengaged to the first distance, so that the grass head is moved to the pay-off position, and the driving device drives the bobbin 211 to take off the head shell 212 in the first direction and at the first speed.
  • the clutch device drives the head shell 212 or the bobbin 211 to rotate, so that the two are disengaged to a second distance, so that the grass head moves to a winding position,
  • the driving device drives the bobbin 211 to rotate at a second speed lower than the first speed and in a second direction relative to the first direction.
  • a lawnmower comprising:
  • the grass head includes a head shell 212, a bobbin 211 and a main motor; the main motor is operatively associated with the bobbin 211 to drive the bobbin 211 to cut vegetation in the grassing mode and to perform the paying operation in the pay-off mode
  • the switching mechanism 4 includes a switching device 42 associated with either of the head housing 212 and the bobbin 211 for driving the head housing 212 to be engaged or relatively disengaged with the bobbin 211; when the lawn mower receives the grass signal The switching device 42 is driven to drive the grass head into the grassing mode, at which time the head shell 212 is engaged with the bobbin 211; when the lawn mower receives the payout signal, the switching device 42 is driven to drive the grass The head enters the pay-off mode, at which time the head shell 212 is relatively disengaged from the spool 211.
  • the user does not need to manually perform the payout, which reduces the difficulty of the operation of the lawnmower, and automatically or semi-automatically switches to the grassing mode after the line is released, reducing the operation steps, preventing the user from switching the working mode in time, so that the playing The grass machine is more flexible during the grasshopper process and improves its work efficiency.
  • the switching structure is implemented in accordance with the structure and the coupling relationship in the above embodiments, and will not be described in detail herein.
  • the lawnmower can select an automatic pay-off mode and an automatic grass-scraping mode, and the automatic winding mode is not selected, so that the lawnmower can automatically switch between the pay-off mode and the grass-grazing mode, and the winding process is Implemented as semi-automatic or manual, requiring the user to wire or start the semi-automatic winding of the relevant components.
  • the main motor driving bobbin 211 rotates in the first direction and the first speed and the head shell 212.
  • the main motor drives the bobbin 211 in the first direction and A speed and the head shell 212 are disengaged from differential rotation.
  • the lawnmower has a first main switch, the first main switch is for the user to trigger to enter the grassing mode, the head shell 212 is engaged with the bobbin 211, and the main motor driving bobbin 211 and the head shell 212 rotate together at a high speed.
  • the grass cutter has a third switch different from the first main switch.
  • the grass enters the pay-off mode, and the head shell 212 is disengaged from the bobbin 211, and the main motor is driven.
  • the bobbin 211 is rotated at a high speed to promote the speed difference with the head casing 212.
  • the first main switch, the second switch, and the third switch are disposed to be connected to the control unit 6, and are triggered by the control unit 6 according to the first main switch, the second main switch, and the third main switch.
  • the grass signal, the winding signal and the line signal are disposed to be connected to the control unit 6, and are triggered by the control unit 6 according to the first main switch, the second main switch, and the third main switch.
  • the first main switch is set to a preset grass triggering time T1, and the grassing triggering time T1 is set to be shorter, such as 1 s, so that the user can quickly enter the grass through the first main switch. mode.
  • the first main switch is triggered by the user to enter the pay-off mode, the head shell 212 is disengaged from the bobbin 211, and the main motor drive bobbin 211 rotates at a high speed to promote the speed difference with the head shell 212.
  • the first main switch is further set to a preset payout trigger time T2 is set to be greater than the grassing mode trigger time T1, such as 2s, the user long presses the first main switch, activates the payout signal and sends to the station
  • the control unit 6 is described.
  • the lawnmower wirelessly connects at least one mobile terminal, and sends a grass signal to the grasshopper to trigger a grassing mode, or sends a payoff signal to the grasshopper to trigger a payout signal, thereby not
  • the mechanical mechanism needs to be pressed to extend the service life of the lawnmower, reduce the manufacturing cost, and facilitate the user's real-time manipulation of the lawnmower.
  • control unit 6 is operatively connected to the switching mechanism 4 and the main motor, and the control unit 6 controls the switching mechanism 4 and the main motor to play according to the grass signal and the payout signal.
  • the working state corresponding to the grass mode and the release mode. Reduce the user's operating procedures in the use of the lawnmower, improve the efficiency of grassing.
  • the lawnmower includes a line length detecting device 6, and the line length detecting device 6 detects the state of the grassing rope 21, and sends a payout signal when the grassing rope 21 line is short, that is, less than the preset grassing length. Go to the control unit 6 to switch the lawnmower to the pay-off mode, and send a grass signal to the control unit 6 when the grass rope 21 is greater than the preset grass length, so that the hitting The grass machine is switched to the grassing mode, and the wire length detecting device 6 can effectively detect the grassing state of the grasshopper and switch its working mode in time to improve the accuracy and stability of the grassing. Simplify the user's steps.
  • providing a lawnmower includes:
  • the grass head includes a head shell 212 and a bobbin 211; a driving device operatively associated with the bobbin 211 to drive the bobbin 211 to cut vegetation in the grassing mode, and to perform a pay-off operation in the pay-off mode; the switching mechanism 4,
  • the switching device 42 is associated with any one of the head shell 212 and the bobbin 211 for driving the head shell 212 to be engaged or disengaged with the bobbin 211; when the lawn mower receives the grass signal, the switching device 42 is Driving, driving the grass head into the grassing mode, at which time the head shell 212 is engaged with the bobbin 211; when the lawn mower receives the payout signal, the switching device 42 is driven to drive the grass head into the pay-off mode At this time, the head shell 212 is relatively disengaged from the bobbin 211.
  • the lawnmower function is given by the driving device, and the pay-off mode and the grass-grazing mode are switched by the driving device driving spool 211 to improve the compatibility of the lawnmower.
  • a lawnmower comprising: a grassing head comprising a head shell 212 and a bobbin 211; and a driving device for driving the grass head in the grassing mode Cutting the vegetation and performing the pay-off operation in the pay-off mode;
  • the switching mechanism 4 includes a switching device 42 associated with any one of the head shell 212 and the bobbin 211 for driving the head shell 212 to engage or disengage with the bobbin 211 open;
  • the switching device 42 When the lawn mower receives the grassing signal, the switching device 42 is driven to drive the grass head into the grassing mode, at which time the head shell 212 is engaged with the bobbin 211; when the lawn mower receives the pay-off line When the signal is applied, the switching device 42 is driven to drive the grass head into the pay-off mode, and the head shell 212 and the bobbin 211 are relatively disengaged.
  • the switching mechanism 4 is associated with the head case 212.
  • the switching mechanism 4 drives the head case 212 to move downwardly to mesh with the bobbin 211, and the driving device drives the grass head to In one direction and the first speed is rotated
  • the switching mechanism 4 drives the head shell 212 to be disengaged to the first distance
  • the driving device drives the grass head so that the bobbin 211
  • the differential rotation is disengaged in the first direction and at the first speed and the head shell 212.
  • the driving device is connected to the grass head, and the grass head is controlled to switch between different grassing modes and pay-off modes.
  • the switching mechanism 4 is associated with the bobbin 211.
  • the switching mechanism 4 drives the bobbin 211 to move up and mesh with the head shell 212, and the driving device drives the grass head Rotating in a first direction and at a first speed
  • the switching mechanism 4 drives the bobbin 211 to move down to the first distance, and the driving device drives the grass head to make
  • the bobbin 211 is rotated in a first direction and at a first speed and the head shell 212 is disengaged.
  • the switching mechanism 4 is associated with the head case 212 or the bobbin 211.
  • the switching mechanism 4 drives the head case 212 or the bobbin 211 to rotate so that the two are engaged. Driving the grass head to rotate in a first direction and at a first speed.
  • the switching mechanism 4 drives the head shell 212 or the bobbin 211 to rotate, so that the two are disengaged to the first
  • the driving device drives the grass head and causes the bobbin 211 to rotate in a first direction and at a first speed and the head shell 212 to be disengaged.
  • a lawnmower comprising: a grassing head comprising a head shell 212, a spool 211 and a main motor; the main motor being operatively associated with the spool 211
  • the driving bobbin 211 cuts the vegetation in the grassing mode and performs the paying operation in the pay-off mode;
  • the switching mechanism 4 includes a switching device 42 associated with any one of the head shell 212 and the bobbin 211 for driving the head shell 212 is engaged or relatively disengaged with the bobbin 211; when the lawn mower receives the grassing signal, the switching device 42 is driven to drive the grass head into the grassing mode, and the head shell 212 is engaged with the bobbin 211.
  • the switching device 42 When the lawn mower receives the payout signal, the switching device 42 is driven to drive the grass head into the pay-off mode, and the head shell 212 and the bobbin 211 are relatively disengaged. Therefore, the user does not need to manually perform the payout, which reduces the difficulty of the operation of the lawnmower, and automatically or semi-automatically switches to the grassing mode after the line is released, reducing the operation steps, preventing the user from switching the working mode in time, so that the playing The grass machine is more flexible during the grasshopper process and improves its work efficiency.
  • the switching structure is implemented in accordance with the structure and the coupling relationship in the above embodiments, and will not be described in detail herein.
  • the lawnmower can select an automatic pay-off mode and an automatic grass-scraping mode, and the automatic winding mode is not selected, so that the lawnmower can automatically switch between the pay-off mode and the grass-grazing mode, and the winding process is Implemented as semi-automatic or manual, requiring the user to wire or start the semi-automatic winding of the relevant components.
  • the main motor driving bobbin 211 rotates in the first direction and the first speed and the head shell 212.
  • the main motor drives the bobbin 211 in the first direction and A speed and the head shell 212 are disengaged from differential rotation.
  • the lawnmower has a first main switch, the first main switch is for the user to trigger to enter the grassing mode, the head shell 212 is engaged with the bobbin 211, and the main motor driving bobbin 211 and the head shell 212 rotate together at a high speed.
  • the grass cutter has a third switch different from the first main switch. When the first main switch and the third switch are triggered by the user, the grass enters the pay-off mode, and the head shell 212 is disengaged from the bobbin 211, and the main motor is driven. The bobbin 211 is rotated at a high speed to promote the speed difference with the head casing 212.
  • the first main switch, the second switch, and the third switch are disposed to be connected to the control unit 6, and are triggered by the control unit 6 according to the first main switch, the second main switch, and the third main switch.
  • the grass signal, the winding signal and the line signal are disposed to be connected to the control unit 6, and are triggered by the control unit 6 according to the first main switch, the second main switch, and the third main switch.
  • the first main switch is set to a preset grass triggering time T1, and the grassing triggering time T1 is set to be shorter, such as 1 s, so that the user can quickly enter the grass through the first main switch. mode.
  • the first main switch is triggered by the user to enter the pay-off mode, the head shell 212 is disengaged from the bobbin 211, and the main motor drive bobbin 211 rotates at a high speed to promote the speed difference with the head shell 212.
  • the first main switch is further set to a preset payout trigger time T2 is set to be greater than the grassing mode trigger time T1, such as 2s, the user long presses the first main switch, activates the payout signal and sends to the station
  • the control unit 6 is described.
  • the lawnmower wirelessly connects at least one mobile terminal, and sends a grass signal to the grasshopper to trigger a grassing mode, or sends a payoff signal to the grasshopper to trigger a payout signal, thereby not
  • the mechanical mechanism needs to be pressed to extend the service life of the lawnmower, reduce the manufacturing cost, and facilitate the user's real-time manipulation of the lawnmower.
  • control unit 6 is operatively connected to the switching mechanism 4 and the main motor, and the control unit 6 controls the switching mechanism 4 and the main motor to play according to the grass signal and the payout signal.
  • the working state corresponding to the grass mode and the release mode. Reduce the user's operating procedures in the use of the lawnmower, improve the efficiency of grassing.
  • the lawnmower includes a line length detecting device 6, and the line length detecting device 6 detects the state of the grassing rope 21, and sends a payout signal when the grassing rope 21 line is short, that is, less than the preset grassing length. Go to the control unit 6 to switch the lawnmower to the pay-off mode, and send a grass signal to the control unit 6 when the grass rope 21 is greater than the preset grass length, so that the hitting The grass machine is switched to the grassing mode, and the wire length detecting device 6 can effectively detect the grassing state of the grasshopper and switch its working mode in time to improve the accuracy and stability of the grassing. Simplify the user's steps.
  • the preset grass length is set to be greater than a minimum grass length corresponding to the grass cutter.
  • providing a lawnmower includes:
  • the grass head includes a head shell 212 and a bobbin 211; and a driving device operatively associated with the bobbin 211 to drive the bobbin 211 to cut vegetation in the grassing mode and to perform the paying operation in the pay-off mode;
  • the switching mechanism 4 includes a switching device 42 associated with any one of the head housing 212 and the bobbin 211 for driving the head housing 212 to be engaged or relatively disengaged with the bobbin 211; when the lawn mower receives the grass signal, The switching device 42 is driven to drive the grass head into the grassing mode, at which time the head shell 212 is engaged with the bobbin 211; when the lawn mower receives the payout signal, the switching device 42 is driven to drive the grass head When the pay-off mode is entered, the head shell 212 and the bobbin 211 are relatively disengaged.
  • the lawnmower function is given by the driving device, and the pay-off mode and the grass-grazing mode are switched by the driving device driving spool 211 to improve the compatibility of the lawnmower.
  • a lawnmower comprising:
  • the grass head includes a head shell 212 and a bobbin 211; a driving device for driving the grass head to cut vegetation in the grassing mode, and performing a paying operation in the pay-off mode; the switching mechanism 4, including the head shell a switching device 42 associated with any one of the spools 211 and the spool 211 for driving the head shell 212 to be engaged or relatively disengaged with the spool 211;
  • the switching device 42 When the lawn mower receives the grassing signal, the switching device 42 is driven to drive the grass head into the grassing mode, at which time the head shell 212 is engaged with the bobbin 211; when the lawn mower receives the pay-off line When the signal is applied, the switching device 42 is driven to drive the grass head into the pay-off mode, and the head shell 212 and the bobbin 211 are relatively disengaged.
  • the switching mechanism 4 is associated with the head case 212.
  • the switching mechanism 4 drives the head case 212 to move downwardly to mesh with the bobbin 211, and the driving device drives the grass head to In one direction and the first speed is rotated
  • the switching mechanism 4 drives the head shell 212 to be disengaged to the first distance
  • the driving device drives the grass head so that the bobbin 211
  • the differential rotation is disengaged in the first direction and at the first speed and the head shell 212.
  • the driving device is connected to the grass head to control the grass head to switch between different grassing modes and pay-off modes.
  • the switching mechanism 4 is associated with the bobbin 211.
  • the switching mechanism 4 drives the bobbin 211 to move up and mesh with the head shell 212, and the driving device drives the grass head Rotating in a first direction and at a first speed
  • the switching mechanism 4 drives the bobbin 211 to move down to the first distance, and the driving device drives the grass head to make
  • the bobbin 211 is rotated in a first direction and at a first speed and the head shell 212 is disengaged.
  • the switching mechanism 4 is associated with the head case 212 or the bobbin 211.
  • the switching mechanism 4 drives the head case 212 or the bobbin 211 to rotate so that the two are engaged. Driving the grass head to rotate in a first direction and at a first speed.
  • the switching mechanism 4 drives the head shell 212 or the bobbin 211 to rotate, so that the two are disengaged to the first
  • the driving device drives the grass head and causes the bobbin 211 to rotate in a first direction and at a first speed and the head shell 212 to be disengaged.
  • a lawnmower comprising:
  • the grass head includes a head shell 212, a bobbin 211 and a main motor; the main motor is operatively coupled to the bobbin 211 to drive the bobbin 211 to cut vegetation in the grassing mode and to perform winding in the winding mode
  • the switching mechanism 4 includes a switching device 42 coupled to either of the head housing 212 and the bobbin 211 for driving the head housing 212 to be engaged or relatively disengaged with the bobbin 211; when the lawn mower receives the grass signal The switching device 42 is driven to drive the grass head into the grassing mode, at which time the head shell 212 is engaged with the bobbin 211; when the lawn mower receives the winding signal, the switching device 42 is driven to drive the grass The head enters the winding mode, at which time the head shell 212 is relatively disengaged from the bobbin 211.
  • the lawnmower comprises a control unit 6, the control unit 6 is operatively connected to the switching mechanism 4 and the main motor, and the control unit 6 controls the switching mechanism 4 according to a grassing signal and a winding signal. And the working state corresponding to the main motor to the grassing mode and the winding mode.
  • the head shell 212 has an outer threading hole 212a, and the bobbin 211 has an inner threading hole, and the outer threading hole 212a and the inner threading hole are passed through the grass rope 21 to be wound around the bobbin 211, the grass cutter Including the line length detecting device 6, when detecting that the grass cutter has a threading action or the grass rope 21 is restrained at the threading hole, sending a winding signal to the control unit 6 to make the grass The machine switches to the winding mode.
  • the step is to prevent the user from switching the working mode in time, so that the lawn mower is more flexible during the grass cutting process and improves the working efficiency.
  • a lawnmower comprising:
  • the grass head includes a head shell 212 and a bobbin 211; and a driving device operatively coupled to the bobbin 211 to drive the bobbin 211 to cut vegetation in the grassing mode and to perform winding work in the winding mode;
  • the switching mechanism 4 includes a switching device 42 coupled to either of the head housing 212 and the bobbin 211 for driving the head housing 212 to be engaged or relatively disengaged with the bobbin 211; when the lawn mower receives the grass signal, The switching device 42 is driven to drive the grass head into the grassing mode, at which time the head shell 212 is engaged with the bobbin 211; when the lawn mower receives the winding signal, the switching device 42 is driven to drive the grass head Entering the winding mode, the head shell 212 and the bobbin 211 are relatively disengaged.
  • the lawnmower function is given by the driving device, and the pay-off mode and the grass-grazing mode are switched by the driving device driving spool 211 to improve the compatibility of the lawnmower.
  • a lawn mower comprising:
  • the grass head includes a head shell 212 and a bobbin 211; a driving device for driving the grass head to cut vegetation in the grassing mode, and winding work in the winding mode; the switching mechanism 4, including the head shell
  • the switching device 42 coupled to any one of the spools 211 and the bobbin 211 is configured to drive the head shell 212 to be engaged or disengaged with the bobbin 211; when the lawn mower receives the grass-grazing signal, the switching device 42 is driven to drive The grass head enters the grassing mode, at which time the head shell 212 is engaged with the bobbin 211; when the lawn mower receives the winding signal, the switching device 42 is driven to drive the grass head into the winding mode, at which time the head The shell 212 is relatively disengaged from the spool 211.
  • the wire length detecting device 6 can effectively detect the grassing state of the grass cutter, and switch its working mode in time to improve the accuracy and stability of the grassing, and simplify the operation steps of the user.
  • the driving device is connected to the grass head to control the grass head to switch between different grassing modes and pay-off modes.
  • a lawnmower comprising:
  • the grass head comprises a head shell 212, a bobbin 211 and a main motor; the main motor is operatively coupled with the bobbin 211 to drive the bobbin 211 to cut vegetation in the grassing mode or to perform the line-up operation in the pay-off mode Or winding in the winding mode;
  • the switching mechanism 4 includes a switching device 42 associated with any one of the head housing 212 and the bobbin 211 for driving the head housing 212 to be engaged or relatively disengaged with the bobbin 211; when the lawn mower receives the grass signal, The switching device 42 is driven to drive the grass head into the grassing mode, at which time the head shell 212 is engaged with the bobbin 211; when the lawn mower receives the payout signal, the switching device 42 is driven to drive the grass head Entering the pay-off mode, the head shell 212 and the bobbin 211 are disengaged to the first state or the second distance; when the lawn mower receives the winding signal, the switching device 42 is driven to drive the grass head to enter In the winding mode, the head shell 212 and the bobbin 211 are disengaged to the second state or the second distance.
  • the transition from the first state to the second state corresponds to not only the distance and displacement relationship between the bobbin and the head shell, but also the head shell 212 and the The relative relationship of the bobbin 211 is changed to switch the pay-off mode and the winding mode of the lawnmower.
  • a lawnmower comprising:
  • the grass head includes a head shell 212 and a bobbin 211; a driving device operatively coupled with the bobbin 211 to drive the bobbin 211 to cut vegetation in the grassing mode, or to perform a paying operation in the pay-off mode, or to wind the wire The winding operation is performed in the mode; the switching mechanism 4 includes a switching device 42 coupled to any one of the head case 212 and the bobbin 211 for driving the head case 212 to be engaged or relatively disengaged with the bobbin 211;
  • the switching device 42 When the lawn mower receives the grassing signal, the switching device 42 is driven to drive the grass head into the grassing mode, at which time the head shell 212 is engaged with the bobbin 211; when the lawn mower receives the pay-off line When the signal is received, the switching device 42 is driven to drive the grass head into the pay-off mode, at which time the head shell 212 and the bobbin 211 are disengaged to a first distance; when the lawn mower receives the winding signal, the switching device The 42 is driven to drive the grass head into the winding mode, and the head shell 212 is disengaged from the bobbin 211 to a second distance, wherein the second distance is different from the first distance.
  • the grassing signal, the payout signal, and the winding signal are directly sent to the lawnmower, and the lawnmower is directly controlled to switch to the corresponding mode according to the working signal.
  • a lawnmower comprising:
  • the grass head includes a head shell 212 and a bobbin 211; a driving device for driving the grass head to cut vegetation in the grassing mode, and winding work in the winding mode; the switching mechanism 4, including the head shell
  • the switching device 42 coupled to any one of the bobbin 211 and the bobbin 211 is configured to drive the head shell 212 to be engaged or disengaged with the bobbin 211; when the lawn mower receives the grassing signal, the switching device 42 is driven to drive The grass head enters the grassing mode, at which time the head shell 212 is engaged with the bobbin 211; when the lawn mower receives the payout signal, the switching device 42 is driven to drive the grass head into the pay-off mode; When the lawn mower receives the winding signal, the switching device 42 is driven to drive the grass head into the winding mode.
  • the user does not need to manually perform the paying and winding, which reduces the difficulty of the operation of the lawnmower, reduces the operation steps, prevents the user from switching the working mode in time, and makes the grasshopper hit the grass. More flexible and improved work efficiency.
  • the present disclosure provides a lawn mower. By switching the relative positional relationship between the head shell and the bobbin, the grass cutter can be more flexible in the grass cutting process and the working efficiency is improved.

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Abstract

公开了一种打草机,打草机的打草头包括头壳(212)、线轴(211)、主电机(1)和切换机构(4),线轴(211)用于缠绕打草绳(21),头壳(212)用于容纳线轴(211)并形成有供打草绳(21)穿过的穿线孔(212a);主电机(1)驱动线轴(211)切割植被;切换机构(4)包括与头壳(212)关联的切换装置(42)和辅助电机(41),辅助电机(41)用以驱动切换装置(42)带动头壳(212)上下移动;当切换机构(4)接收到打草信号时,带动头壳(212)移动至打草位置进入打草模式;当接收到放线信号时,带动头壳(212)移动至放线位置进入放线模式;当接收到绕线信号时,带动头壳(212)移动至绕线位置进入绕线模式。该打草机实现了自动化,方便操作。

Description

打草机 技术领域
本公开涉及一种打草机。
背景技术
一般而言,打草机上设有打草档,用户可以启动打草按键启动打草模式。但,打草机作业一段时间后,需要放线或收线,多数打草机只能进行手动放线或手动收线。
中国公开专利CN105850342A,揭示了一种放线结构,其通过操作者操作相应按键,可实现即时放线,但其仅揭示如何自动放线。
国际公开申请WO2017124865,揭示了我司一种自动收线结构,其通过打草按键,进入打草模式;通过收线按键,进入收线模式,但其未揭示如何自动地在打草模式、收线模式和/或放线模式下进行切换,以使打草机更自动和智能化。
发明内容
为了解决现有技术的不足,本公开的主要目的在于提供一种更自动化和智能化的打草机。
为实现上述主要目的,本公开提供一种打草机,所述打草机包括:
打草头,包括头壳和线轴,线轴用于缠绕打草绳,头壳用于容纳线轴并形成有供打草绳穿过的穿线孔;
主电机,可操作地与线轴关联,以驱动线轴在打草模式下切割植被、或在放线模式下进行放线、以及在绕线模式下进行绕线,其中,在打草模式下,所述主电机驱动线轴以第一方向且第一速度转动;
切换机构,包括与头壳关联的切换装置和辅助电机,用以驱动切换装置带动头壳上下移动;
当所述切换机构接收到打草信号时,所述辅助电机驱动切换装置,带动头壳移动至打草位置进入所述打草模式;当所述切换机构接收到放线信号时,所 述辅助电机驱动切换装置,带动头壳移动至放线位置进入放线模式;当所述切换机构接收到绕线信号时,所述辅助电机驱动切换装置,带动头壳移动至绕线位置进入绕线模式。
进一步的,所述头壳包括关联件,所述切换装置包括与辅助电机轴关联的齿轮轴、安装在齿轮轴上的齿轮、与齿轮啮合的齿条,与齿条关联的爪件,其中,所述爪件与头壳的关联件关联。
进一步的,在绕线模式下,所述电机驱动线轴以相对第一方向的第二方向转动。
进一步的,在绕线模式下,所述电机驱动线轴以低于第一速度的第二速度转动。
进一步的,所述打草机具有第一主开关,第一主开关供用户触发启动进入打草模式,所述头壳与线轴啮合,电机驱动线轴和头壳一起高速正转。
进一步的,所述打草机具有第二开关,第二开关供用户触发启动进入绕线模式。
进一步的,所述打草机具有不同于第一主开关的第三开关,在第一主开关与第三开关被用户触发下启动进入放线模式,头壳与线轴脱开,电机驱动线轴高速正转,促使与头壳速度差放线。
进一步的,所述打草机无线连接至少一移动终端,发送打草信号到所述打草机触发打草模式,或发送绕线信号到所述打草机触发绕线模式,或发送放线信号到所述打草机触发放线模式。
为实现上述主要目的,本公开提供一种打草机,所述打草机包括:
打草头,包括头壳和线轴;主电机,可操作地与线轴关联,以驱动线轴在打草模式下切割植被、或在放线模式下进行放线、以及在绕线模式下进行绕线;切换机构,包括与头壳和线轴之任一个关联的切换装置,用以驱动切换装置带动头壳和线轴之其中之一上下移动,以与头壳和线轴之其中另一个啮合或脱开;
当所述切换机构接收到打草信号时,切换装置受驱动,带动头壳移动至打草位置进入所述打草模式,此时头壳与线轴啮合;当所述切换机构接收到放线信号时,切换装置受驱动,带动头壳移动至放线位置进入放线模式,此时头壳 与线轴脱开至第一距离;当所述切换机构接收到绕线信号时,切换装置受驱动,带动头壳移动至绕线位置进入绕线模式,此时头壳与线轴脱开至第二距离。
进一步的,所述头壳包括关联件,所述切换装置包括与主电机轴关联的齿轮轴、安装在齿轮轴上的齿轮、与齿轮啮合的齿条,与齿条关联的爪件,其中,所述爪件,用以与头壳的关联件联接。
进一步的,所述线轴包括线轴关联件,所述切换装置包括与主电机轴关联的齿轮轴、安装在齿轮轴上的齿轮、与齿轮啮合的齿条,与齿条关联的爪件,其中,所述爪件与所述线轴关联件关联。
进一步的,在打草模式下,所述主电机驱动线轴以第一方向且第一速度和所述头壳啮合一起转动,在放线模式下,所述主电机驱动线轴以第一方向且第一速度和所述头壳脱开差速转动。
进一步的,在绕线模式下,所述主电机驱动线轴以相对第一方向的第二方向转动。
进一步的,在绕线模式下,所述主电机驱动线轴以低于第一速度的第二速度转动。
进一步的,所述打草机具有第一主开关,第一主开关供用户触发启动进入打草模式,所述头壳与线轴啮合,电机驱动线轴和头壳一起高速正转。
进一步的,所述打草机具有第二开关,第二开关供用户触发启动进入绕线模式。
进一步的,所述打草机具有不同于第一主开关的第三开关,在第一主开关与第三开关被用户触发下启动进入放线模式,头壳与线轴脱开,电机驱动线轴高速正转,促使与头壳速度差放线。
进一步的,所述打草机无线连接移动终端,通过移动终端触发打草信号,绕线信号,放线信号并启动进入对应的打草模式,绕线模式,放线模式。
进一步的,所述打草机包括控制单元,所述控制单元可工作的连接于所述切换机构和所述主电机,所述控制单元根据打草信号,放线信号,绕线信号控制所述切换机构和所述主电机到打草模式、放线模式、绕线模式对应的工作状态。
进一步的,所述打草机包括线长检测装置,所述线长检测装置检测所述打草绳状态,在所述打草绳线短,即小于预设打草长度时发送放线信号到所述控制单元,使所述打草机转换到放线模式,并在所述打草绳大于预设打草长度时,发送打草信号到所述控制单元,使所述打草机转换到打草模式。
进一步的,所述头壳具有外穿线孔,所述线轴具有内穿线孔,所述外穿线孔和所述内穿线孔供打草绳穿过以缠绕于线轴,所述打草机包括线长检测装置,在检测到所述打草机有穿线动作或所述打草绳于穿线孔处被限位时,发送绕线信号到所述控制单元,使所述打草机转换到绕线模式。
进一步的,所述线长检测装置包括微动开关,打击件,所述微动开关设置于所述打草头,所述打击件被设置于所述微动开关的触点的相对位置,以打草绳旋转时周期性带动所述打击件打击所述微动开关而产生的电信号生成相关的放线信号和打草信号。
进一步的,所述线长检测装置包括打击件,霍尔元件,弹性件,以及磁体,所述弹性件连接所述打击件和所述霍尔元件,打草绳旋转时周期性打击所述打击件带动所述弹性件位移,从而改变所述霍尔元件和所述磁体的相对关系,所述霍尔元件感应磁体产生电信号生成相关的放线信号和打草信号。
为实现上述主要目的,本公开提供一种打草机,所述打草机包括:驱动装置;打草头,包括头壳和线轴;所述驱动装置,可操作地与线轴关联,以驱动线轴在打草模式下切割植被、或在放线模式下进行放线、以及在绕线模式下进行绕线;切换机构,至少包括离合装置,与头壳和线轴之任一个关联,所述离合装置受触发以促使头壳与线轴啮合或脱开;
当所述切换机构接收到打草信号时,触发离合装置,使得打草头移动至打草位置进入所述打草模式,此时头壳与线轴啮合;当所述切换机构接收到放线信号时,触发离合装置,使得打草头移动至放线位置进入放线模式,此时头壳与线轴脱开至第一距离;当所述切换机构接收到绕线信号时,触发离合装置,使得打草头移动至绕线位置进入绕线模式。
进一步的,所述切换机构关联所述头壳,在打草模式下,所述离合装置带动所述头壳下移与所述线轴啮合,所述驱动装置带动所述线轴和所述头壳以第一方向且第一速度转动,在放线模式下,所述离合装置带动所述头壳上移脱开 至所述第一距离,所述驱动装置驱动线轴以第一方向且第一速度和所述头壳脱开差速转动,在绕线模式下,所述离合装置带动所述头壳上移至第二距离,所述驱动装置驱动线轴以低于第一速度的第二速度,且相对于第一方向的第二方向转动。
进一步的,所述切换机构关联所述线轴,在打草模式下,所述离合装置带动所述线轴上移与所述头壳啮合,所述驱动装置带动所述线轴和所述头壳以第一方向且第一速度转动,在放线模式下,所述离合装置带动所述线轴下移脱开至所述第一距离,所述驱动装置驱动线轴以第一方向且第一速度和所述头壳脱开差速转动,在绕线模式下,所述离合装置带动所述线轴下移至第二距离,所述驱动装置驱动线轴以低于第一速度的第二速度,且相对于第一方向的第二方向转动。
进一步的,所述切换机构关联所述头壳或所述线轴,在打草模式下,所述离合装置带动所述头壳或线轴旋转使得两者啮合,所述驱动装置带动所述线轴和所述头壳以第一方向且第一速度转动,在放线模式下,所述离合装置带动所述头壳或所述线轴旋转,使得两者脱开至所述第一距离,所述驱动装置驱动线轴以第一方向且第一速度和所述头壳脱开差速转动,在绕线模式下,所述离合装置带动所述头壳或所述线轴旋转,使得两者脱开至第二距离,所述驱动装置驱动线轴以低于第一速度的第二速度,且相对于第一方向的第二方向转动。
进一步的,所述打草机具有第一主开关,第二开关,第一主开关供用户触发启动进入打草模式,第二开关供用户触发启动进入绕线模式。
进一步的,所述打草机具有不同于第一主开关的第三开关,在第一主开关与第三开关被用户触发下启动进入放线模式。
进一步的,所述打草机无线连接移动终端,通过移动终端触发打开所述第一主开关,第二开关,第三开关,并进入对应的打草模式,绕线模式,放线模式。
进一步的,所述的打草机,所述打草机包括控制单元和线长检测装置,所述控制单元连接所述驱动装置和所述切换机构,所述线长检测装置检测所述打草绳长度,生成对应的打草信号、放线信号、绕线信号,并通过所述控制单元切换到对应的打草模式、放线模式、绕线模式。
进一步的,所述线长检测装置检测所述打草绳状态,在所述打草绳线短,即小于预设打草长度时发送放线信号到所述控制单元,使所述打草机转换到放线模式,并在所述打草绳大于预设打草长度时,发送打草信号到所述控制单元,使所述打草机转换到打草模式。
进一步的,所述头壳具有外穿线孔,所述线轴具有内穿线孔,所述外穿线孔和所述内穿线孔供打草绳穿过以缠绕于线轴,所述打草机包括线长检测装置,在检测到所述打草机有穿线动作或所述打草绳于穿线孔处被限位时,发送绕线信号到所述控制单元,使所述打草机转换到绕线模式。
有益效果:
根据所述打草机的结构,可以接收用户发出的放线信号,绕线信号,打草信号,并自动地根据用户的发出的信号指令,通过切换头壳和线轴的相对位置关系,将所述打草机切换到对应的打草,绕线,放线模式,或者自身设置线长检测装置,根据对线长的检测自动切换打草,绕线,放线模式,因而不需要用户手动的进行放线和绕线,降低了对所述打草机的操作难度,减少操作步骤,防止用户未及时切换工作模式,使得打草机打草过程中更加灵活,提升了其工作效率。
附图说明
图1是本公开之一个实施例打草机示意图;
图2是图1中打草头包括线轴示意图;
图3是图1中打草头包括穿线结构示意图;
图4是图1中打草机位置切换机构切换装置示意图;
图5是图1中打草机位置切换机构部分切换装置另一视角示意图;
图6是图1中打草机位置切换机构部分切换装置再一视角示意图;
图7是图1中打草机处于打草位置示意图;
图8是图1中打草机处于放线位置示意图;
图9是图1中打草机处于收线位置示意图;
图10是图7中打草机在打草位置时线轴与头壳啮合结构示意图;
图11是图9中打草机在收线位置时头壳与固定机壳的啮合结构示意图;
图12是本公开之一种实施例打草机的电路结构示意图;
图13是本公开之一种实施例打草机的电路结构示意图;
图14是本公开之一种实施例打草机的控制流程图
图15是本公开之一种实施例打草机的第一种线长检测装置的结构示意图;
图16是本公开之一种实施例打草机的第二种线长检测装置的结构示意图;
图17是本公开之一种实施例打草机的第三种线长检测装置的结构示意图;
图18是本公开之一种实施例打草机的第三种线长检测装置的局部结构示意图
图19是本公开之一种实施例打草机的控制流程图;
图20是本公开之一种实施例打草机的电路结构示意图;
图21是本公开之一种实施例打草机的线长检测装置的示意图;
图22是本公开之一种实施例打草机的第一种控制流程图;
图23是本公开之一种实施例打草机的第二种控制流程图;
图24是本公开之一种实施例打草机的第三种控制流程图。
具体实施方式
以下结合附图和具体实施例对本公开作具体的介绍。
在本公开的实施例中,打草机包括头壳、线轴和电机,当接收到打草信号时,启动所述打草头处于打草模式下,所述打草机进行打草作业;当接收到放线信号时,启动所述打草头处于放线模式下,所述打草机进行放线作业;当接收到收线信号时,启动所述打草头处于收线模式下,所述打草机进行收线作业。
参考图1至图6所示,为本公开之一个实施例的打草机,所述打草机包括主电机1、打草头2、主操作装置3和设置在打草头附近的切换机构4。所述打草机还可包括一护罩5,用以保护所述打草头以及该打草头所连接的打草绳。
主电机1能驱动打草头2绕一轴线210a转动,从而带动打草绳21转动切割植被。操作装置3用于供用户操作以控制打草机。
具体而言,主电机1的转子连接驱动轴122。其中,驱动轴122连接至打草头2从而驱动打草头2转动。
打草头2用于安装和收纳打草绳21,打草绳21的部分收纳在打草头2的内部,打草绳21还有一部分伸出打草头2以用于在打草头2旋转时切割植被。打草头2包括线轴211和头壳212。线轴211用于缠绕打草绳21并被容纳在头壳212内。在本公开的一个实施例中,头壳112形成有供打草绳21穿过的外穿线孔212a;线轴211设有内穿线孔211a,当头壳112的外穿线孔212a与线轴11的内穿线孔211a对齐时,供打草绳21穿过外穿线孔212a和内穿线孔211a并绕至线轴211上。在本公开的另一个实施例中,头壳112的外穿线孔可以与线轴上内穿线入口不对齐,打草绳穿过头壳112的外穿线孔后,通过头壳112上导引通道与线轴上的穿线通道之间的对接,将打草绳21绕至线轴211上。这里,作为一种实现方式,头壳212包括上盖212b和下盖212c,这样能使头壳212便于与线轴211装配也便于用户打开头壳212检测头壳212内部的情况。
打草头2还可包括在头壳212和线轴211之间施加作用力的弹簧213。弹簧213施加使线轴211远离下盖212c的作用力。
在用户需要补充新的打草绳21时,用户通过切换机构4使头壳212和线轴211相对移动,进而使内穿线孔211a和外穿线孔212a对齐,然后使打草绳21穿过外穿线孔212a,然后进入内穿线孔211a。此时只要能使线轴211和头壳212发生相对运动,使打草绳21随着线轴211的运动而逐渐将打草绳21缠绕在线轴211上。驱动轴122连接至头壳212,其能直接带动线轴211绕轴线210a转动。
线轴211和头壳212构成转动连接,它们之间是可以相对转动的,同时头壳212由切换机构4带动,使得头壳相对线轴211在平行于线轴211的轴线210a的方向上下移动。
所述切换机构4包括辅助电机41和切换装置42,在所述位置切换机构接收到打草信号、放线信号和/或收线信号后,辅助电机驱动切换装置42,使打草机在打草位置、放线位置和收线位置进行切换。以图4至图5所示结构为例,所 述切换装置42可包括齿轮轴420、安装在齿轮轴420上的齿轮421、与齿轮421关联的齿条423、与齿条423关联的爪件425,此爪件425可直接或间接联接在所述头壳212上。
在一种实施方式下,本公开提供一种打草机,所述打草机包括:打草头,包括头壳、线轴和电机位置切换机构,包括与头壳关联的切换装置、和辅助电机,用以驱动切换装置带动头壳上下移动,以与线轴啮合或脱开,当接收到打草信号时,切换装置受驱动,以带动头壳移动至打草位置,头壳与线轴啮合;当接收到放线信号时,切换装置受驱动,以带动头壳移动至放线位置,头壳与线轴脱开;当接收到收线信号时,切换装置受驱动,以带动头壳移动至收线位置,头壳与线轴脱开。
具体而言,当所述切换机构4接收到信号,位置切换机构响应该信号:位置切换机构内的辅助电机驱动其电机轴,辅助电机的电机轴与齿轮轴420联接,由此带动齿轮轴420上的齿轮421,齿轮421带动齿条423上下运动。由于齿条423联接有爪件425,爪件425啮合或联接在与头壳212上或联接在与头壳212关联的关联件110上,这样辅助电机驱动齿轮齿条,所述齿条423上下运动带动爪件425啮合头壳212在上下位置移动,即沿轴线210a的方向向上或向下移动。
值得一提的是,关联的连接关系不仅仅指两者结构上的连接,也只通过相关力的方式如磁铁的磁力,使得所述切换机构4可以改变所述头壳212和所述线轴的相对位置关系。
可以理解的是,所述切换结构4即是一位置切换结构4。
如图7,当位置切换机构接收到打草信号,如打草机已处在打草位置,则位置切换机构上的辅助电机驱动齿轮121不作动,或不驱动电机,打草机仍旧在第一位置或打草位置。打草机的打草位置,为打草机的复位位置,为0档。
请参考图7,打草机在打草位置,线轴211与头壳212啮合,线轴211受主电机1驱动而高速正转。请参考图10,在打草位置时,所述打草机主电机正转,即正向转动,通过线轴211上的止档件231和头壳212上的限位件212d在电机正转时啮合,线轴211和头壳212一起正向高速转动。这样,在打草位置,打草机主电机驱动线轴211正向转动,由于线轴211与头壳212啮合在一起,线 轴211和头壳212一起高速正转。
在图10中,所述线轴211上的止档件231,由止档面和倾斜面构成;所述头壳212上的限位件212d包括限位面,当主电机正转时,所述线轴211的止档面抵靠所述头壳212的限位面,线轴211与头壳212一起高速正转。
当位置切换机构接收到放线信号,如打草机原先处在打草位置,接收到放线信号后,位置切换机构驱动辅助电机,辅助电机驱动齿轮齿条,通过齿轮齿条及爪件带动头壳上移,例如被上移动至3.5mm,使得头壳212跟线轴211脱开,即位置切换机构的切换装置带动头壳上移至第二位置或放线位置,为1档。如图8,打草机在放线位置,头壳212跟线轴211脱开,线轴211由主电机驱动保持高速正转,与头壳212形成速度差进行放线。
当位置切换机构接收到收线信号,如打草机原先处在打草位置,接收到收线信号后,位置切换机构驱动辅助电机,辅助电机驱动齿轮齿条,通过齿轮齿条及爪件带动头壳上移,例如被上移动至7mm,也就是说,在收线位置,头壳212比防线位置被上移或抬起的距离大些,使得头壳212与线轴211脱开,并使得头壳212进一步与固定壳体10啮合,即位置切换机构的切换装置带动头壳上移至第三位置或收线位置,为2档。如图9,打草机在收线位置,头壳212与线轴211脱开,并与固定壳体10进一步啮合,由于固定机壳10固定不动,头壳11与固定机壳10一起被固定,线轴211由主电机驱动而低速反转,实现绕线。
在本公开的上述实施例中,采用位置切换机构辅助电机驱动切换装置,将头壳上下移动,在本公开的其他一些实施例中,也可采用其他机械结构,只要头壳11能够上下移动与线轴13啮合或脱开。
上述对主电机以及对辅助电机的驱动可通过图12所示的电路结构实现。电路结构主要包括:电池包、控制单元6、驱动电路7、主电机、位置切换机构中的辅助电机,以及分别对应控制打草、绕线和放线三个操作的三个操作开关SW1、SW2、SW3。其中的控制单元6、驱动电路7和负责控制打草操作的操作开关SW1可设置于打草机的主操作装置3附近。作为一种可选的方式,可将负责控制绕线操作的操作开关SW2可设置于打草头2附近。作为一种可选的方式,可将负责控制放线操作的操作开关SW2可设置于图1中打草机的副把手31附近。
在本实施例中,由电池包作为供电装置,电池包输出电压经相应电路单元升降压、稳压处理后,为所述控制单元6、驱动电路7、主电机、位置切换机构供电。升降压、稳压处理可通过分离元件构成的调压电路或滤波电路实现,也可以通过现有的电源芯片实现。
控制单元6用于根据三个操作开关SW1、SW2、SW3的通断状态输出相应的控制信号至所述驱动电路7或位置切换机构,分别控制驱动电路7输出驱动信号以驱动主电机1运转,控制位置切换机构内的辅助电机41带动切换装置42,以使打草机在打草位置、放线位置和收线位置进行切换。
以驱动无刷电机为例,本公开的一种实现方式下,所述驱动电路7与所述主电机1的三相电极U、V、W电连接,驱动所述电机运转。所述驱动电路7具体包括有开关电路,所述开关电路用于根据所述控制单元6输出的控制信号相应地改变导通状态以输出驱动信号至电机的三相电极,驱动信号控制所述电机的转子运转。所述驱动电路7具有输入端、输出端。如图12所示,开关电路包括开关元件VT1、VT2、VT3、VT4、VT5、VT6。开关元件VT1-VT6以场效应管为例,其栅极端作为所述驱动电路7的输入端,分别与控制单元6的控制信号电性连接,开关元件的每个漏极或源极分别与电机的定子电连接。在本公开的一个实施例中,所述开关元件VT1-VT6依次按照控制单元6输出的控制信号改变导通状态,从而改变电池包加载在无刷电机绕组上的电压状态,在绕组上产生交变的磁场,通过该交变的磁场驱动所述电机的转子运转。
具体而言,上述驱动电路7为了使无刷电机转动,具有多个驱动状态,在一个驱动状态下电机的定子会产生一个磁场,控制单元6被配置为依据电机的转子转动位置输出相应的控制信号至驱动电路7以使驱动电路7切换驱动状态,从而使定子产生的磁场转动以驱动转子转动,实现对无刷电机的驱动。电机的转子转动位置,在本公开的一个实施例中可通过电机的相电流和/或母线电流经位置估算而获得。
以驱动一种以舵机实现的辅助电机为例,所述控制单元6还根据三个操作开关SW1、SW2、SW3的通断状态输出相应的PWM控制信号至所述辅助电机,以驱动所述辅助电机的电机轴向相应的方向旋转一定角度,由辅助电机的电机轴驱动切换装置42,带动所述齿轮轴420、安装在齿轮轴420上的齿轮421、与 齿轮421联接的齿条423、与齿条423联接的爪件425,带动爪件425所直接或间接联接的所述头壳212使打草机在打草位置、放线位置和收线位置进行切换。
值得一提的是,三个操作开关SW1、SW2、SW3分别对应第一主开关,第二开关,第三开关,供用户操作所述打草机。
其中,所述控制单元6根据三个操作开关SW1、SW2、SW3的通断状态而相应控制所述驱动电路7或所述切换机构4的流程图可参见图14:
执行步骤S11:所述打草头被设置为默认停留在打草位置。执行步骤S12:当检测到绕线开关SW2被触发时,执行步骤S13:控制单元6控制位置切换机构中的辅助电机,辅助电机通过齿轮齿条驱动爪件带动打草机的头壳,使打草机前往绕线位置。步骤S13:按键时间大于T1S,此时,执行步骤S15,控制单元6可同步控制驱动电路7使电机反转进行绕线。步骤S16:绕线过程中,若检测到绕线开关SW2被触发的时长超过T1s,或检测到绕线开关SW2超过T2s而未被触发,执行步骤S17,电机刹车报错信号,并执行步骤S18,则控制单元6判断应当结束绕线。结束绕线时,控制单元6输出相应的控制信号至所述辅助电机以驱动所述打草头回到默认的打草位置。在S16结果为否时,执行S139电机绕线停转,。
执行步骤S19,当检测到打草开关SW1被触发时,执行步骤S110,控制单元6控制驱动电路7驱动主电机1高速正转,打草机进入打草状态,打草绳由主电机驱动旋转进行切割作业。在此打草状态下,执行步骤S113,还进一步检测放线开关SW3是否被触发。
打草状态下,执行步骤S114,一旦放线开关SW3被触发超过T3s则判断需要进行放线。此时,执行步骤S115,控制单元6在保持主电机高速正转的同时,进一步控制位置切换机构中的辅助电机,辅助电机通过齿轮齿条驱动爪件带动打草机的头壳,使打草机前往放线位置。此时,控制单元6始终保持驱动电路7对主电机的驱动,而头壳212受齿轮齿条作动与线轴211脱离,线轴211受主电机驱动与头壳212之间产生速度差,由此,打草绳被松脱,实现放线。放线结束时,执行步骤S116,控制单元6输出相应的控制信号至所述辅助电机以驱动所述打草头回到默认的打草位置。
上述控制步骤中,时间间隔T1、T2、T3被用于避免操作开关误触发,避免 因操作开关误触发而使打草机错误地在绕线模式、放线模式、打草模式之间切换。
在这种控制方式下,绕线和打草、放线功能不能同时实现:如果同时按下绕线和打草开关,电机会停止运行,系统报错;如果同时按下绕线和放线开关,并没有按打草开关的话,机器会实行绕线功能,并不会实现放线功能,也不会发生任何功能性的冲突。这是因为放线功能只有在高速打草的模式下才会有效,不按打草开关,只按放线开关是不会产生速度差而放线的。
并且,电机会在绕线进行(T2s-T1s)后停止绕线,此时位置切换机构带动打草头从绕线位置返回到打草位置,这样做的目的有两点:第一,打草头内能绕线的长度有限,这样不会绕过多的线到打草头内;第二,无刷电机反向绕线时转速很低,采用类似于正弦波的控制方式,留有一定余量的绕线时间后停机,能够进一步保护电机,防止损坏。
进一步的,在步骤S111被执行后,打草开关SW1松开,执行步骤S112,电机刹车位置切换装置控制打草头回到打草位置。
在本公开的另一实施例中,所述打草机的机械结构与上一实施例类似,区别仅在于,参见图13,本实施例中的主电机1选用有刷电机实现,并通过线长检测装置替代上一实施例中的操作开关SW3实现对放线的自动控制。
为配合所述有刷电机,本实施例中的驱动电路7可选择专用的驱动芯片而实现,或者也可通过可控硅等开关元件构建相应的驱动电路7实现对所述有刷电机的驱动。针对有刷电机的驱动电路7,作为本领域常用的技术,在此不加赘述。
参考图19右侧,本实施例中打草/放线模式之间的切换逻辑如下。执行步骤S21,打草头停在打草位置。执行步骤S29,打草机工作在高速,正转状态:执行步骤S212,如探测到打草绳线短,则启动位置切换机构响应,抬起打草头至1档,进行放线;执行步骤S213,一旦探测到打草绳正常,则位置切换机构响应,执行步骤S214,放下打草外壳,回复到0档,继续打草。
在S210打草开关SW1松开时,执行步骤S211,电机刹车位置切换机构控制打草头回到打草位置。
参考图19左侧,本实施例中收线逻辑如下。绕线逻辑中,打草机工作在低速,反转状态:执行步骤S22,绕线开关按下,触发收线信号,执行步骤S23,位置切换机构响应,抬起打草头至2档,执行步骤S24,同时主电机低速、反转实现收线。此时由于打草机头壳212与线轴211分开,与固定壳体10啮合,打草绳被反转的线轴带动,收纳于所述头壳中。之后,执行步骤S25,松开绕线开关SW2或者当绕线开关SW2被触发的时间达到预设的绕线时长T2s后,位置切换机构响应,执行步骤S26,S27,放下打草头壳11,同时电机停转。
本实施例中,所述打草机可通过离合装置使得打草头移动至打草位置或放线位置或收线位置。所述的离合装置使得所述打草机的头壳与线轴啮合或相应地脱开特定的距离,以实现对打草位置、放线位置或收线位置的切换。在一种实现方式中,所述的离合装置可采用上一实施例中所述切换装置42的结构,也可通过其他机械结构,例如由控制单元6驱动的继电器,通过控制单元6控制其触点进行位置切换使得所述打草机的头壳或线轴相应地啮合或脱开。在某些优选的实施例中,所述离合装置还被设计为可控制所述头壳与线轴脱开的距离。
由此,在一种实施方式下,可提供一种一种打草机,所述打草机包括:电机;打草头,包括头壳、线轴;离合装置,与头壳和/或线轴关联,所述离合装置受触发以使头壳与线轴啮合或脱开,当接收到打草信号时,触发离合装置,使得打草头移动至打草位置,头壳与线轴啮合;当接收到放线信号时,触发离合装置,使得打草头移动至放线位置,头壳与线轴脱开至第一距离;当接收到收线信号时,触发离合装置,使得打草头移动至收线位置,头壳与线轴脱开至第二距离。
参考图10,由于所述线轴211上的止档件231包括有倾斜面,所述头壳212上的限位件212d包括有限位面,放线或收线逻辑下,所述线轴211的止档面与所述头壳212的限位面脱开,打草绳在倾斜面一侧的空隙内被绕紧或被松脱。由于斜面对打草绳的摩擦较小,因此驱动打草绳绕紧或松脱所需的扭矩更小,对打草绳的磨损更小。因而,本公开所述的打草头结构在实现对打草绳的绕线或放线控制的同时,还能够保护打草绳不易磨损。尤其,在反转绕线状态下,由于斜面对打草绳的阻力更小,驱动打草绳绕线所需扭矩更小,即,只需电机反转提供较小的扭矩即可实现绕线,降低了绕线电流,使得绕线电流小于等于3安培。也就是说,本公开所提供的打草头结构,因该倾斜面,而能够以较小的 反转电流驱动主电机带动打草绳,以较小的反转扭矩实现绕线。由此,本公开所提供的打草头结构还能够降低电机反转驱动所需的电流,进一步保护电机。
下表为本实施例所述打草头在绕线模式下绕线电流的测试数据。由于本实施例中,绕线模式下,线轴与头壳脱离,因此绕线电流得到明显改善。绕线电流仅为现有打草机绕线电流的1/4。
表1
Figure PCTCN2018118606-appb-000001
在一种实施方式下,所述打草机包括:电机;打草头,包括头壳、线轴;当接收到打草信号时,启动所述打草头处于打草模式下,所述打草机进行打草作业;当接收到放线信号时,启动所述打草头处于放线模式下,所述打草机进行放线作业。
其中,探测到打草绳线短而产生的放线信号可通过图15所示的装置产生。图15所示的线长检测装置50a包括一个设置于打草机护罩5内的微动开关51,与该微动开关的触点相对的位置还设置有一打击件52,该打击件52通过一个连接件53与护罩5连接。打草状态下,打草绳由打草头驱动旋转,打草绳旋转,在一定的线长范围内会周期性地击打该打击件52,打击件52被击打而触发所述微动开关51,微动开关的触点被打击件52周期性地触发而产生周期性的电信号。一旦控制单元6能够检测到该周期性的电信号,即可判断打草绳的绳长在正常范围内。当打草绳磨损变短无法触碰到该打击件52时,该周期性的电信号关断,由此,控制单元6可判断为接收到放线信号,驱动所述打草机进入放线状态,进行相应的放线操作。即,打草状态下,控制单元6接收微动开关51的常态信 号,以该常态信号为放线信号,驱动所述打草机进入放线状态,进行相应的放线操作。
作为另一种可选的实现方式,上述的放线信号还可由图16所示的装置产生。图16所示的线长检测装置50b同样包括一个设置于打草机护罩5内的微动开关51以及一打击件52,该打击件52通过一个连接件53与护罩5连接。图16所示的线长检测装置与上一实施方式的区别在于,还包括一弹性结构54。所述弹性结构连接所述连接件53以及所述护罩5,使得所述打击件在被打草绳击打的状态下而松开对所述微动开关51的触发。微动开关的触点仅在打草绳线长缩短以至于无法击打该打击件时才被触发而产生电信号。一旦控制单元6能够检测到该电信号,即可判断打草绳的绳长不足需要放线。也就是说,图16所示的装置中,控制单元6对放线信号的判断与上一实施方式相反。即,打草状态下,控制单元6接收微动开关51的触发信号,以该触发信号为放线信号,驱动所述打草机进入放线状态,进行相应的放线操作。
作为又一种可选的实现方式,上述的放线信号还可由图17及图18所示的装置产生。该所述线长检测装置50c包括一打击件52,该打击件52通过一弹性装置55安装于所述护罩的内侧。弹性装置55上或包围所述打击件52的外壳56上还相对地设有霍尔元件57以及磁体58。所述打击件52被转动的打草绳周期性地击打而带动所述弹性装置55周期性地位移。弹性装置55位移,带动所述霍尔元件57以及磁体58相对运动而产生位置变化。所述霍尔元件57在接近所述磁体58时感应产生电信号,在远离所述磁体时电信号减小。相应设置所述霍尔元件的位置以及所述磁体的位置,通过霍尔元件感应磁体所产生的电信号即可判断所述打击件是否被打草绳击打,进而判断是否需要控制所述打草头进入放线模式。
本领域技术人员可以理解,相应地错开所述霍尔元件57与所述磁体58的位置,将所述霍尔元件设置在打击件被打草绳击打时磁体所处位置的对侧,即可以相反的逻辑实现上述对打草绳线长的检测。这样的设置下,打草绳磨损变短后无法击打所述打击件,霍尔元件相应地无法检测到磁体,而产生低电平信号,以该信号作为放线信号控制所述打草机进入放线状态。
在本公开的又一实施例中,所述打草机的机械结构与上述实施例类似,区 别仅在于,参见图20,本实施例中通过线长检测装置50d替代上一实施例中的操作开关SW2,产生收线信号实现对绕线的自动控制。
在一种实施方式下,所述打草机可包括:电机;打草头,包括头壳、线轴;当接收到打草信号时,启动所述打草头处于打草模式下,所述打草机进行打草作业;当接收到收线信号时,启动所述打草头处于收线模式下,所述打草机进行收线作业。
其中,所述的线长检测装置50d可通过图21所示的方式设置。该结构设置于打草头内,在检测到打草绳被外穿线孔212a限位而触发一电信号,控制单元6检测到该电信号后判断,将所述打草机切换至绕线模式。使打草机进入绕线位置,打草绳21随着外穿线孔212a相对线轴211的运动而逐渐将打草绳21缠绕在线轴211上。
由此,本实施例所提供的打草机,其绕线、放线两种模式均可通过全自动的方式进行控制而无需人工进行判断。
将上述对绕线或放线的控制进行叠加或集成。在本公开的一种实施方式中,所述打草机可包括:电机;打草头,包括头壳、线轴;当接收到打草信号时,启动所述打草头处于打草模式下,所述打草机进行打草作业;当接收到放线信号时,启动所述打草头处于放线模式下,所述打草机进行放线作业;当接收到收线信号时,启动所述打草头处于收线模式下,所述打草机进行收线作业。
参考图22所示:
执行步骤S31,所述打草头被设置为默认停留在打草位置。执行步骤S32,当接收到绕线信号时,执行步骤S33,控制单元6控制位置切换机构中的辅助电机,辅助电机通过齿轮齿条驱动爪件带动打草机的头壳,使打草机前往绕线位置。此时,控制单元6可同步控制驱动电路7使电机反转进行绕线。执行步骤S34,绕线过程中,若检测到绕线信号的有效时长不超过T1s,或检测到绕线信号的有效时长超过T2s,执行步骤S35,S36,并执行步骤S37,则控制单元6判断应当结束绕线。结束绕线时,控制单元6输出相应的控制信号至所述辅助电机以驱动所述打草头回到默认的打草位置。
在步骤S36判定为否时,执行执行步骤S39,使得电机绕线停转。
当检测到打草开关SW1被触发时,控制单元6控制驱动电路7驱动主电机1高速正转,打草机进入打草状态,打草绳由主电机驱动旋转进行切割作业。在此打草状态下,还进一步检测是否接收到放线信号。
打草状态下,一旦放线信号被触发超过T3s则判断需要进行放线。此时,控制单元6在保持主电机高速正转的同时,进一步控制位置切换机构中的辅助电机,辅助电机通过齿轮齿条驱动爪件带动打草机的头壳,使打草机前往放线位置。此时,控制单元6始终保持驱动电路7对主电机的驱动,而头壳212受齿轮齿条作动与线轴211脱离,线轴211受主电机驱动与头壳212之间产生速度差,由此,打草绳被松脱,实现放线。放线结束时,控制单元6输出相应的控制信号至所述辅助电机以驱动所述打草头回到默认的打草位置。
本领域技术人员可理解,本实施例所述绕线信号即可由所述操作开关SW2触发,也可通过所述线长检测装置而自动检测。所述放线信号即可由所述操作开关SW3触发,也可通过所述线长检测装置而自动检测。所述的操作开关或检测装置相互独立。因此,可选的,本公开还可单独对绕线状态或放线状态实现单独的控制。
在一种实施方式下,所述的打草机可包括:电机;打草头,包括头壳、线轴;当接收到放线信号时,启动所述打草头处于放线模式下,所述打草机进行放线作业;当接收到收线信号时,启动所述打草头处于收线模式下,所述打草机进行收线作业。
参考图23。图23为控制单元6单独对放线状态进行控制的流程示意。其中,执行步骤S41,打草头停在打草位置,并执行步骤S42,所述放线信号由操作开关SW3触发提供,也可通过所述线长检测装置而自动产生。执行步骤S43,并在执行S44步骤后,执行步骤S45,打草机刹车,打草头回到打草位置。
在步骤S46中,步骤S47发生时,一旦放线信号被触发超过T3s则判断需要进行放线。此时,执行步骤S48控制单元6在保持主电机高速正转的同时,进一步并进行到步骤S49控制位置切换机构中的辅助电机,辅助电机通过齿轮齿条驱动爪件带动打草机的头壳,使打草机前往放线位置。此时,控制单元6始终保持驱动电路7对主电机的驱动,而头壳212受齿轮齿条作动与线轴211脱离,线轴211受主电机驱动与头壳212之间产生速度差,由此,打草绳被松 脱,实现放线。放线结束时,控制单元6输出还可相应的控制信号至所述辅助电机以驱动所述打草头回到默认的打草位置。
参考图24。图24所示为控制单元6单独对绕线状态进行控制的流程示意。执行步骤S51,打草头停在打草位置,并在步骤S52激发时,接收到绕线信号,执行步骤S53,位置切换机构控制打草头前往绕线位置,S54在有效信号时间大于T1s时,步骤S55执行,在有效信号时间大于T2s时,即步骤S56,执行步骤S58,S59打击刹车报错信号,位置切换机构控制打草头前往打草位置。否则激发步骤S57,电机绕线停转。
在S510被激发时,按下打草开关,SW1,执行步骤S511电机高速旋转,并在步骤S512被执行时,执行步骤S513,电机刹车打草头回到打草位置。
其中,所述绕线信号由操作开关SW2触发提供,也可通过所述线长检测装置而自动产生。当接收到绕线信号时,控制单元6控制位置切换机构中的辅助电机,辅助电机通过齿轮齿条驱动爪件带动打草机的头壳,使打草机前往绕线位置。此时,控制单元6可同步控制驱动电路7使电机反转进行绕线。绕线过程中,若检测到绕线信号的有效时长不超过T1s,或检测到绕线信号的有效时长超过T2s,则控制单元6判断应当结束绕线。结束绕线时,控制单元6还可输出相应的控制信号至所述辅助电机以驱动所述打草头回到默认的打草位置。
总之,基于本公开的实施例,当所述打草机接收到打草信号时,启动所述打草头处于打草模式下,所述打草机进行打草作业;当所述打草机接收到放线信号时,启动所述打草头处于放线模式下,所述打草机进行放线作业;当接收到收线信号时,启动所述打草头处于收线模式下,所述打草机进行收线作业。
根据本公开的另一个实施例,提供一种打草机,所述打草机包括:打草头,包括头壳212和线轴211;主电机,可操作地与线轴211联接,以驱动线轴211在打草模式下切割植被、或在放线模式下进行放线、以及在绕线模式下进行绕线;切换机构4,包括与头壳212和线轴211之任一个关联的切换装置42,用以驱动切换装置42带动头壳212和线轴211之其中之一上下移动,以与头壳212和线轴211之其中另一个啮合或脱开;
当所述切换机构4接收到打草信号时,切换装置42受驱动,带动头壳212移动至打草位置进入所述打草模式,此时头壳212与线轴211啮合;当所述切 换机构4接收到放线信号时,切换装置42受驱动,带动头壳212移动至放线位置进入放线模式,此时头壳212与线轴211脱开至第一距离;当所述切换机构4接收到绕线信号时,切换装置42受驱动,带动头壳212移动至绕线位置进入绕线模式,此时头壳212与线轴211脱开至第二距离。
所述第一距离小于第二距离,即在所述绕线模式下的所述头壳212与线轴211的距离远于所述放线模式下的所述头壳212与所述线轴211的距离,并且所述第一距离和所述第二距离根据所述打草头的具体结构被设计,从而确保所述头壳212在不同的工作模式下移动到对应的位置,保证所述打草机自动绕线和自动放线的准确性。
根据所述打草机的结构,可以接收用户发出的放线信号,绕线信号,打草信号,并自动地根据用户的发出的信号指令将所述打草机切换到对应的打草模式,因而不需要用户手动的进行放线和绕线,降低了对所述打草机的操作难度,减少操作步骤,防止用户未及时切换工作模式,使得打草机打草过程中更加灵活,提升了其工作效率。
所述头壳212包括关联件110,所述切换装置42包括与主电机轴联接的齿轮轴420、安装在齿轮轴420上的齿轮421、与齿轮421啮合的齿条423,与齿条423联接的爪件425,其中,所述爪件425与头壳212的关联件110关联,所述爪件425,用以与头壳212的关联件110联接。
通过所述切换装置42和所述关联件110的关联,可以通过所述辅助电机41驱动所述切换装置42上下移动,以带动所述头壳212切换到不同的位置,以快速有效地改变其打草模式,放线模式,绕线模式,从而实现所述打草机在打草模式,绕线模式,放线模式下的自动切换。
值得一提的是,所述线轴211可以包括线轴211关联件110,所述切换装置42包括与主电机轴联接的齿轮轴420、安装在齿轮轴420上的齿轮421、与齿轮421啮合的齿条423,与齿条423联接的爪件425,其中,所述爪件425用于与所述线轴211关联件110关联,此时所述头壳212的所述关联件110不再被设置,通过所述切换装置42连接所述线轴211并驱动线轴211移动,达到驱动所述线轴211和所述头壳212啮合或脱开的目的。
在打草模式下,所述主电机驱动线轴211以第一方向且第一速度和所述头 壳212啮合一起转动,在放线模式下,所述主电机驱动线轴211以第一方向且第一速度和所述头壳212脱开差速转动。
在绕线模式下,所述主电机驱动线轴211以相对第一方向的第二方向转动。在绕线模式下,所述主电机驱动线轴211以低于第一速度的第二速度转动。从而在绕线模式下,使得所述线轴211与所述头壳212相对反向慢速转动,将所述打草绳21缠绕在所述线轴211,以达到有序地自动绕线的目的,并提升自动绕线的精准度和绕线效率。
具体的,在打草模式下,所述辅助电机41驱动所述切换装置42带动所述头壳212下移,使得所述头壳212和所述线轴211啮合,从而所述主电机带动啮合的所述线轴211和所述头壳212同速高速以第一方向旋转,以带动所述打草头内的所述打草绳21高速旋转打草,以实现半自动切换打草模式的功能。
进一步的,在放线模式下,所述辅助电机41带动所述头壳212上移,所述头壳212和所述线轴211脱开,所述线轴211被所述主电机带动旋转,从而使得所述线轴211相对所述头壳212差速旋转,以将缠绕到所述线轴211的所述打草绳21放出,以实现自动放线的功能。通过以上简单的所述切换装置42和所述头壳212的结构,可以有效地实现在绕线模式,打草模式,放线模式之间的半自动切换。
所述打草机具有第一主开关,第一主开关供用户触发启动进入打草模式,所述头壳212与线轴211啮合,所述主电机驱动线轴211和头壳212一起高速正转。所述打草机具有第二开关,第二开关供用户触发启动进入绕线模式。
所述打草机具有不同于第一主开关的第三开关,在第一主开关与第三开关被用户触发下启动进入放线模式,头壳212与线轴211脱开,所述主电机驱动线轴211高速正转,促使与头壳212速度差放线。
所述第一主开关,第二开关,第三开关可以被实施为机械按钮,触屏按键,语音识别器的一种或组合,在被实施为机械按钮或触屏按键时,所述第一主开关,第二开关,第三开关被设置在所述打草机的合适位置,在被实施为语音识别器时,可设定对应的语音指令,如发出语音“打草”,“绕线”,“放线”,分别作为所述第一主开关,第二开关,第三开关的激活指令。降低用户在使用打草机过程中的操作步骤,提高了打草效率。
所述打草机无线连接移动终端,通过移动终端发送打草信号,绕线信号,放线信号并进入对应的打草模式,绕线模式,放线模式。
所述打草机无线连接至少一移动终端,发送打草信号到所述打草机触发打草模式,或发送绕线信号到所述打草机触发绕线模式,或者发送放线信号到所述打草机触发放线信号。
所述移动终端通过无线和所述控制单元6连接,因此用户可以通过移动终端如手机,智能手表等设备发送打草信号,绕线信号,放线信号,并由所述控制单元6接收根据信号信息将所述打草机转换到对应的打草模式,从而不需要按动机械机构,延长了所述打草机的使用寿命,并降低了制造成本,方便用户对所述打草机的实时操控。
用户通过所述第一主开关,第二开关以及第三开关可以轻松地切换所述打草机的工作模式,在用户使用打草机时只需按动对应的按钮或者发出相关的语音指令,即可实现半自动绕线,放线,打草的功能。
所述打草机包括控制单元6,所述控制单元6可工作的连接于所述切换机构4和所述主电机,所述控制单元6根据打草信号,放线信号,绕线信号控制所述切换机构4和所述主电机到打草模式、放线模式、绕线模式对应的工作状态。
可以理解的是,所述打草信号,放线信号,绕线信号可以是用户在操作所述打草机过程中,根据打草需求和打草机的情况通过按下开关或者通过移动终端发送信号产生对应的打草信号,放线信号,绕线信号,并由所述控制单元6根据对应信号控制所述主电机和所述切换机构4,使得所述打草机进入对应的工作模式。
所述打草信号,放线信号,绕线信号也可以是所述打草机自身检测所述打草绳21的状态,在需要转变其工作模式来满足所述打草绳21工作需求时,由所述打草机自身产生对应的工作信号,并控制所述打草机自身自动地切换器工作模式,以达到全自动地打草模式到绕线模式,放线模式到打草模式,打草模式到放线模式的状态切换。
具体地,所述打草机包括线长检测装置6,所述线长检测装置6检测所述打草绳21状态,在所述打草绳21线短,即小于预设打草长度时发送放线信号到所述控制单元6,使所述打草机转换到放线模式,并在所述打草绳21大于预设 打草长度时,发送打草信号到所述控制单元6,使所述打草机转换到打草模式。
所述预设打草长度根据所述打草机实际工作过程中的打草需求,其大于所述打草绳21打草过程所需的最低打草长度,并小于所述打草绳21的总长度,因此所述预设打草长度可以被实施为所述最低打草长度和所述打草绳21长度区间内的一个数值,检测所述打草绳21相对所述预设打草长度的相对关系发送工作信号。所述线长检测装置6通过直接检测所述打草绳21绳长,也可以通过检测所述打草绳21相关参数间接地检测所述打草绳21绳长。
所述头壳212具有外穿线孔212a,所述线轴211具有内穿线孔,所述外穿线孔212a和所述内穿线孔供打草绳21穿过以缠绕于线轴211,所述打草机包括线长检测装置6,在检测到所述打草机有穿线动作或所述打草绳21于穿线孔处被限位时,发送绕线信号到所述控制单元6,使所述打草机转换到绕线模式。
所述线长检测装置6可以被实施为本公开任一实施例所介绍的结构,在此不再详述。
根据本公开的另一个实施例,提供一种打草机,所述打草机包括:
打草头,包括头壳212和线轴211,线轴211用于缠绕打草绳21,头壳212用于容纳线轴211并形成有供打草绳21穿过的穿线孔;主电机,可操作地与线轴211联接,以驱动线轴211在打草模式下切割植被、或在放线模式下进行放线、以及在绕线模式下进行绕线,其中,在打草模式下,所述主电机驱动线轴211以第一方向且第一速度转动;切换机构4,包括与头壳212关联的切换装置42和辅助电机41,用以驱动切换装置42带动头壳212上下移动;当所述切换机构4接收到打草信号时,所述辅助电机41驱动切换装置42,带动头壳212移动至打草位置进入所述打草模式;当所述切换机构4接收到放线信号时,所述辅助电机41驱动切换装置42,带动头壳212移动至放线位置进入放线模式;当所述切换机构4接收到绕线信号时,所述辅助电机41驱动切换装置42,带动头壳212移动至绕线位置进入绕线模式。
参照图4,所述头壳212包括关联件110,所述切换装置42包括与辅助电机41轴联接的齿轮轴420、安装在齿轮轴420上的齿轮421、与齿轮421啮合的齿条423,与齿条423联接的爪件425,其中,所述爪件425与头壳212的关联件110联接。
值得一提的是,在本实施例中,所述主电机可以被设置在所述打草头内,也可以被设置在所述打草机某处,在此不造成限制。
根据本公开的另一个实施例,提供一种打草机,所述打草机包括:
驱动装置;打草头,包括头壳212和线轴211;所述驱动装置,可操作地与线轴211联接,以驱动线轴211在打草模式下切割植被、或在放线模式下进行放线、以及在绕线模式下进行绕线;切换机构4,至少包括离合装置,与头壳212和线轴211之任一个关联,所述离合装置受触发以促使头壳212与线轴211啮合或脱开;
当所述切换机构4接收到打草信号时,触发离合装置,使得打草头移动至打草位置进入所述打草模式,此时头壳212与线轴211啮合;当所述切换机构4接收到放线信号时,触发离合装置,使得打草头移动至放线位置进入放线模式,此时头壳212与线轴211脱开至第一距离;当所述切换机构4接收到绕线信号时,触发离合装置,使得打草头移动至绕线位置进入绕线模式。
所述切换机构4联接所述头壳212,在打草模式下,所述离合装置带动所述头壳212下移与所述线轴211啮合,所述打草头移动到打草位置,所述驱动装置带动所述线轴211和所述头壳212以第一方向且第一速度转动;在放线模式下,所述离合装置带动所述头壳212上移脱开至所述第一距离,使得打草头移动到放线位置,所述驱动装置驱动线轴211以第一方向且第一速度和所述头壳212脱开差速转动,在绕线模式下,所述离合装置带动所述头壳212上移至第二距离,使得打草头移动到绕线位置,所述驱动装置驱动线轴211以低于第一速度的第二速度,且相对于第一方向的第二方向转动。
进一步的,所述离合装置可以联接所述线轴211并带动所述线轴211位移,所述切换机构4联接所述线轴211,在打草模式下,所述离合装置带动所述线轴211上移与所述头壳212啮合,所述打草头移动到打草位置,所述驱动装置带动所述线轴211和所述头壳212以第一方向且第一速度转动,在放线模式下,所述离合装置带动所述线轴211下移脱开至所述第一距离,使得打草头移动到放线位置,所述驱动装置驱动线轴211以第一方向且第一速度和所述头壳212脱开差速转动,在绕线模式下,所述离合装置带动所述线轴211下移至第二距离,使得打草头移动到绕线位置,所述驱动装置驱动线轴211以低于第一速度的第 二速度,且相对于第一方向的第二方向转动。
可以理解的是,所述切换机构4联接所述头壳212或所述线轴211,在打草模式下,所述离合装置带动所述头壳212或线轴211旋转使得两者啮合,所述打草头移动到打草位置,所述驱动装置带动所述线轴211和所述头壳212以第一方向且第一速度转动,在放线模式下,所述离合装置带动所述头壳212或所述线轴211旋转,使得两者脱开至所述第一距离,使得打草头移动到放线位置,所述驱动装置驱动线轴211以第一方向且第一速度和所述头壳212脱开差速转动,在绕线模式下,所述离合装置带动所述头壳212或所述线轴211旋转,使得两者脱开至第二距离,使得打草头移动到绕线位置,所述驱动装置驱动线轴211以低于第一速度的第二速度,且相对于第一方向的第二方向转动。
根据本公开的另一个实施例,提供一种打草机,所述打草机包括:
打草头,包括头壳212、线轴211和主电机;所述主电机,可操作地与线轴211关联,以驱动线轴211在打草模式下切割植被、以及在放线模式下进行放线作业;切换机构4,包括与头壳212和线轴211之任一个关联的切换装置42,用以驱动头壳212与线轴211一起啮合或相对脱开;当所述打草机接收到打草信号时,切换装置42受驱动,带动打草头进入所述打草模式,此时头壳212与线轴211啮合;当所述打草机接收到放线信号时,切换装置42受驱动,带动打草头进入放线模式,此时头壳212与线轴211相对脱开。因而不需要用户手动的进行放线,降低了对所述打草机的操作难度,在放线后自动或半自动地切换到打草模式,减少操作步骤,防止用户未及时切换工作模式,使得打草机打草过程中更加灵活,提升了其工作效率。
所述切换结构被实施与上述实施例中结构和联接关系可以一致,在此不再详述。所述打草机可以选取自动放线模式和自动打草模式,而不选取所述自动绕线模式,使得所述打草机可以在放线模式和打草模式自动切换,而绕线过程被实施为半自动或手动,需要用户自己绕线或者启动相关元件半自动绕线。
在打草模式下,所述主电机驱动线轴211以第一方向且第一速度和所述头壳212啮合一起转动,在放线模式下,所述主电机驱动线轴211以第一方向且第一速度和所述头壳212脱开差速转动。
所述打草机具有第一主开关,第一主开关供用户触发启动进入打草模式, 所述头壳212与线轴211啮合,所述主电机驱动线轴211和头壳212一起高速正转。
所述打草机具有不同于第一主开关的第三开关,在第一主开关与第三开关被用户触发下启动进入放线模式,头壳212与线轴211脱开,所述主电机驱动线轴211高速正转,促使与头壳212速度差放线。
所述第一主开关,第二开关,第三开关被设置连接于所述控制单元6,并通过所述控制单元6根据所述第一主开关,第二主开关,第三主开关触发相应的打草信号,绕线信号和放线信号。
优选的,所述第一主开关被设置一预设的打草触发时间T1,所述打草触发时间T1被设置较短,如1s,使得用户可以通过所述第一主开关快速进入打草模式。所述第一主开关被用户触发启动进入放线模式,头壳212与线轴211脱开,所述主电机驱动线轴211高速正转,促使与头壳212速度差放线。
所述第一主开关还被设置一预设的放线触发时间T2被设置为大于打草模式触发时间T1,如2s,用户长按所述第一主开关,激活放线信号并发送到所述控制单元6。
所述打草机无线连接至少一移动终端,通过所述移动终端发送打草信号到所述打草机触发打草模式,或发送放线信号到所述打草机触发放线信号,从而不需要按动机械机构,延长了所述打草机的使用寿命,并降低了制造成本,方便用户对所述打草机的实时操控。
此时,所述控制单元6可工作的连接于所述切换机构4和所述主电机,所述控制单元6根据打草信号,放线信号控制所述切换机构4和所述主电机到打草模式、放线模式对应的工作状态。降低用户在使用打草机过程中的操作步骤,提高了打草效率。
所述打草机包括线长检测装置6,所述线长检测装置6检测所述打草绳21状态,在所述打草绳21线短,即小于预设打草长度时发送放线信号到所述控制单元6,使所述打草机转换到放线模式,并在所述打草绳21大于预设打草长度时,发送打草信号到所述控制单元6,使所述打草机转换到打草模式,通过所述线长检测装置6可以有效的检测所述打草机的打草状态,以及时的切换其工作模式,以提升其打草的精确性和稳定性,简化用户的操作步骤。
根据本公开的另一个实施例,提供一打草机包括:
打草头,包括头壳212和线轴211;驱动装置,可操作地与线轴211关联,以驱动线轴211在打草模式下切割植被、以及在放线模式下进行放线作业;切换机构4,包括与头壳212和线轴211之任一个关联的切换装置42,用以驱动头壳212与线轴211一起啮合或相对脱开;当所述打草机接收到打草信号时,切换装置42受驱动,带动打草头进入所述打草模式,此时头壳212与线轴211啮合;当所述打草机接收到放线信号时,切换装置42受驱动,带动打草头进入放线模式,此时头壳212与线轴211相对脱开。
在本实施例中,用驱动装置给所述打草机功能,并通过所述驱动装置驱动线轴211切换放线模式和打草模式,以提升所述打草机的兼容性。
根据本公开的另一个实施例,提供一种打草机,所述打草机包括:打草头,包括头壳212和线轴211;驱动装置,用以驱动所述打草头在打草模式下切割植被、以及在放线模式下进行放线作业;切换机构4,包括与头壳212和线轴211之任一个关联的切换装置42,用以驱动头壳212与线轴211一起啮合或相对脱开;
当所述打草机接收到打草信号时,切换装置42受驱动,带动打草头进入所述打草模式,此时头壳212与线轴211啮合;当所述打草机接收到放线信号时,切换装置42受驱动,带动打草头进入放线模式,此时头壳212与线轴211相对脱开。
所述切换机构4关联所述头壳212,在打草模式下,所述切换机构4带动所述头壳212下移与所述线轴211啮合,所述驱动装置带动所述打草头以第一方向且第一速度转动,在放线模式下,所述切换机构4带动所述头壳212上移脱开至所述第一距离,所述驱动装置驱动打草头,使得所述线轴211以第一方向且第一速度和所述头壳212脱开差速转动。
在本实施例里,所述驱动装置连接所诉打草头,控制所述打草头在不同的打草模式和放线模式之间切换。
进一步的,所述切换机构4关联所述线轴211,在打草模式下,所述切换机构4带动所述线轴211上移与所述头壳212啮合,所述驱动装置带动所述打草头以第一方向且第一速度转动,在放线模式下,所述切换机构4带动所述线轴 211下移脱开至所述第一距离,所述驱动装置驱动所述打草头,使得所述线轴211以第一方向且第一速度和所述头壳212脱开差速转动。
进一步的,所述切换机构4关联所述头壳212或所述线轴211,在打草模式下,所述切换机构4带动所述头壳212或线轴211旋转使得两者啮合,所述驱动装置带动所述打草头以第一方向且第一速度转动,在放线模式下,所述切换机构4带动所述头壳212或所述线轴211旋转,使得两者脱开至所述第一距离,所述驱动装置驱动所述打草头,并使得所述线轴211以第一方向且第一速度和所述头壳212脱开差速转动。
根据本公开的另一个实施例,提供一种打草机,所述打草机包括:打草头,包括头壳212、线轴211和主电机;所述主电机,可操作地与线轴211关联,以驱动线轴211在打草模式下切割植被、以及在放线模式下进行放线作业;切换机构4,包括与头壳212和线轴211之任一个关联的切换装置42,用以驱动头壳212与线轴211一起啮合或相对脱开;当所述打草机接收到打草信号时,切换装置42受驱动,带动打草头进入所述打草模式,此时头壳212与线轴211啮合;当所述打草机接收到放线信号时,切换装置42受驱动,带动打草头进入放线模式,此时头壳212与线轴211相对脱开。因而不需要用户手动的进行放线,降低了对所述打草机的操作难度,在放线后自动或半自动地切换到打草模式,减少操作步骤,防止用户未及时切换工作模式,使得打草机打草过程中更加灵活,提升了其工作效率。
所述切换结构被实施与上述实施例中结构和联接关系可以一致,在此不再详述。所述打草机可以选取自动放线模式和自动打草模式,而不选取所述自动绕线模式,使得所述打草机可以在放线模式和打草模式自动切换,而绕线过程被实施为半自动或手动,需要用户自己绕线或者启动相关元件半自动绕线。
在打草模式下,所述主电机驱动线轴211以第一方向且第一速度和所述头壳212啮合一起转动,在放线模式下,所述主电机驱动线轴211以第一方向且第一速度和所述头壳212脱开差速转动。
所述打草机具有第一主开关,第一主开关供用户触发启动进入打草模式,所述头壳212与线轴211啮合,所述主电机驱动线轴211和头壳212一起高速正转。所述打草机具有不同于第一主开关的第三开关,在第一主开关与第三开 关被用户触发下启动进入放线模式,头壳212与线轴211脱开,所述主电机驱动线轴211高速正转,促使与头壳212速度差放线。
所述第一主开关,第二开关,第三开关被设置连接于所述控制单元6,并通过所述控制单元6根据所述第一主开关,第二主开关,第三主开关触发相应的打草信号,绕线信号和放线信号。
优选的,所述第一主开关被设置一预设的打草触发时间T1,所述打草触发时间T1被设置较短,如1s,使得用户可以通过所述第一主开关快速进入打草模式。所述第一主开关被用户触发启动进入放线模式,头壳212与线轴211脱开,所述主电机驱动线轴211高速正转,促使与头壳212速度差放线。
所述第一主开关还被设置一预设的放线触发时间T2被设置为大于打草模式触发时间T1,如2s,用户长按所述第一主开关,激活放线信号并发送到所述控制单元6。
所述打草机无线连接至少一移动终端,通过所述移动终端发送打草信号到所述打草机触发打草模式,或发送放线信号到所述打草机触发放线信号,从而不需要按动机械机构,延长了所述打草机的使用寿命,并降低了制造成本,方便用户对所述打草机的实时操控。
此时,所述控制单元6可工作的连接于所述切换机构4和所述主电机,所述控制单元6根据打草信号,放线信号控制所述切换机构4和所述主电机到打草模式、放线模式对应的工作状态。降低用户在使用打草机过程中的操作步骤,提高了打草效率。
所述打草机包括线长检测装置6,所述线长检测装置6检测所述打草绳21状态,在所述打草绳21线短,即小于预设打草长度时发送放线信号到所述控制单元6,使所述打草机转换到放线模式,并在所述打草绳21大于预设打草长度时,发送打草信号到所述控制单元6,使所述打草机转换到打草模式,通过所述线长检测装置6可以有效的检测所述打草机的打草状态,以及时的切换其工作模式,以提升其打草的精确性和稳定性,简化用户的操作步骤。
所述预设打草长度被设置大于所述打草机对应的最低打草长度。
根据本公开的另一个实施例,提供一打草机包括:
打草头,包括头壳212和线轴211;驱动装置,可操作地与线轴211关联,以驱动线轴211在打草模式下切割植被、以及在放线模式下进行放线作业;
切换机构4,包括与头壳212和线轴211之任一个关联的切换装置42,用以驱动头壳212与线轴211一起啮合或相对脱开;当所述打草机接收到打草信号时,切换装置42受驱动,带动打草头进入所述打草模式,此时头壳212与线轴211啮合;当所述打草机接收到放线信号时,切换装置42受驱动,带动打草头进入放线模式,此时头壳212与线轴211相对脱开。
在本实施例中,用驱动装置给所述打草机功能,并通过所述驱动装置驱动线轴211切换放线模式和打草模式,以提升所述打草机的兼容性。
根据本公开的另一个实施例,提供一种打草机,所述打草机包括:
打草头,包括头壳212和线轴211;驱动装置,用以驱动所述打草头在打草模式下切割植被、以及在放线模式下进行放线作业;切换机构4,包括与头壳212和线轴211之任一个关联的切换装置42,用以驱动头壳212与线轴211一起啮合或相对脱开;
当所述打草机接收到打草信号时,切换装置42受驱动,带动打草头进入所述打草模式,此时头壳212与线轴211啮合;当所述打草机接收到放线信号时,切换装置42受驱动,带动打草头进入放线模式,此时头壳212与线轴211相对脱开。
所述切换机构4关联所述头壳212,在打草模式下,所述切换机构4带动所述头壳212下移与所述线轴211啮合,所述驱动装置带动所述打草头以第一方向且第一速度转动,在放线模式下,所述切换机构4带动所述头壳212上移脱开至所述第一距离,所述驱动装置驱动打草头,使得所述线轴211以第一方向且第一速度和所述头壳212脱开差速转动。
在本实施例里,所述驱动装置连接所述打草头,控制所述打草头在不同的打草模式和放线模式之间切换。
进一步的,所述切换机构4关联所述线轴211,在打草模式下,所述切换机构4带动所述线轴211上移与所述头壳212啮合,所述驱动装置带动所述打草头以第一方向且第一速度转动,在放线模式下,所述切换机构4带动所述线轴 211下移脱开至所述第一距离,所述驱动装置驱动所述打草头,使得所述线轴211以第一方向且第一速度和所述头壳212脱开差速转动。
进一步的,所述切换机构4关联所述头壳212或所述线轴211,在打草模式下,所述切换机构4带动所述头壳212或线轴211旋转使得两者啮合,所述驱动装置带动所述打草头以第一方向且第一速度转动,在放线模式下,所述切换机构4带动所述头壳212或所述线轴211旋转,使得两者脱开至所述第一距离,所述驱动装置驱动所述打草头,并使得所述线轴211以第一方向且第一速度和所述头壳212脱开差速转动。
根据本公开的另一个实施例,提供一种打草机,所述打草机包括:
打草头,包括头壳212、线轴211和主电机;所述主电机,可操作地与线轴211联接,以驱动线轴211在打草模式下切割植被、以及在绕线模式下进行绕线作业;切换机构4,包括与头壳212和线轴211之任一个联接的切换装置42,用以驱动头壳212与线轴211一起啮合或相对脱开;当所述打草机接收到打草信号时,切换装置42受驱动,带动打草头进入所述打草模式,此时头壳212与线轴211啮合;当所述打草机接收到绕线信号时,切换装置42受驱动,带动打草头进入绕线模式,此时头壳212与线轴211相对脱开。
所述打草机包括控制单元6,所述控制单元6可工作的连接于所述切换机构4和所述主电机,所述控制单元6根据打草信号,绕线信号控制所述切换机构4和所述主电机到打草模式、绕线模式对应的工作状态。
所述头壳212具有外穿线孔212a,所述线轴211具有内穿线孔,所述外穿线孔212a和所述内穿线孔供打草绳21穿过以缠绕于线轴211,所述打草机包括线长检测装置6,在检测到所述打草机有穿线动作或所述打草绳21于穿线孔处被限位时,发送绕线信号到所述控制单元6,使所述打草机转换到绕线模式。
因而不需要用户手动的进行绕线,降低了对所述打草机的操作难度,在打草后,或刚连接所述打草绳21时,自动或半自动地切换到绕线模式,减少操作步骤,防止用户未及时切换工作模式,使得打草机打草过程中更加灵活,提升了其工作效率。
具体的,如图21所示,所述打草绳21在被缠绕于所述线轴211时,需要经过所述外穿线孔212a,可以设置压力感应装置在所述外穿线孔212a处,在所 述打草绳21穿过所述外穿线孔212a时,或所述打草绳21在所述外穿线孔212a处被限位时,激活一电信号到所述控制单元6,以触发所述绕线信号。
根据本公开的另一个实施例,提供一种打草机,所述打草机包括:
打草头,包括头壳212和线轴211;驱动装置,可操作地与线轴211联接,以驱动线轴211在打草模式下切割植被、以及在绕线模式下进行绕线作业;
切换机构4,包括与头壳212和线轴211之任一个联接的切换装置42,用以驱动头壳212与线轴211一起啮合或相对脱开;当所述打草机接收到打草信号时,切换装置42受驱动,带动打草头进入所述打草模式,此时头壳212与线轴211啮合;当所述打草机接收到绕线信号时,切换装置42受驱动,带动打草头进入绕线模式,此时头壳212与线轴211相对脱开。
在本实施例中,用驱动装置给所述打草机功能,并通过所述驱动装置驱动线轴211切换放线模式和打草模式,以提升所述打草机的兼容性。
一种打草机,所述打草机包括:
打草头,包括头壳212和线轴211;驱动装置,用以驱动所述打草头在打草模式下切割植被、以及在绕线模式下进行绕线作业;切换机构4,包括与头壳212和线轴211之任一个联接的切换装置42,用以驱动头壳212与线轴211一起啮合或相对脱开;当所述打草机接收到打草信号时,切换装置42受驱动,带动打草头进入所述打草模式,此时头壳212与线轴211啮合;当所述打草机接收到绕线信号时,切换装置42受驱动,带动打草头进入绕线模式,此时头壳212与线轴211相对脱开。
通过所述线长检测装置6可以有效的检测所述打草机的打草状态,以及时的切换其工作模式,以提升其打草的精确性和稳定性,简化用户的操作步骤。
在本实施例里,所述驱动装置连接所述打草头,控制所述打草头在不同的打草模式和放线模式之间切换。
根据本公开的另一个实施例,提供一种打草机,所述打草机包括:
打草头,包括头壳212、线轴211和主电机;所述主电机,可操作地与线轴211联接,以驱动线轴211在打草模式下切割植被、或在放线模式下进行放线作业、或在绕线模式下进行绕线作业;
切换机构4,包括与头壳212和线轴211之任一个关联的切换装置42,用以驱动头壳212与线轴211一起啮合或相对脱开;当所述打草机接收到打草信号时,切换装置42受驱动,带动打草头进入所述打草模式,此时头壳212与线轴211啮合;当所述打草机接收到放线信号时,切换装置42受驱动,带动打草头进入所述放线模式,此时头壳212与线轴211脱开至第一状态或第二距离;当所述打草机接收到绕线信号时,切换装置42受驱动,带动打草头进入所述绕线模式,此时头壳212与线轴211脱开至第二状态或第二距离。
在本实施例中,所述第一状态到第二状态的转变对应的不只是所述线轴和所述头壳的距离位移关系,也可以通过弹性变形等手段,使得所述头壳212和所述线轴211相对关系发生一定变化,以切换所述打草机的放线模式和绕线模式。
根据本公开的另一个实施例,提供一种打草机,所述打草机包括:
打草头,包括头壳212和线轴211;驱动装置,可操作地与线轴211联接,以驱动线轴211在打草模式下切割植被、或在放线模式下进行放线作业、或在绕线模式下进行绕线作业;切换机构4,包括与头壳212和线轴211之任一个联接的切换装置42,用以驱动头壳212与线轴211一起啮合或相对脱开;
当所述打草机接收到打草信号时,切换装置42受驱动,带动打草头进入所述打草模式,此时头壳212与线轴211啮合;当所述打草机接收到放线信号时,切换装置42受驱动,带动打草头进入所述放线模式,此时头壳212与线轴211脱开至第一距离;当所述打草机接收到绕线信号时,切换装置42受驱动,带动打草头进入所述绕线模式,此时头壳212与线轴211脱开至第二距离,其中第二距离不同于第一距离。
在本实施例中,所述打草信号,放线信号,绕线信号直接发送到所述打草机,并直接控制所述打草机根据工作信号切换到对应的模式。
根据本公开的另一个实施例,提供一种打草机,所述打草机包括:
打草头,包括头壳212和线轴211;驱动装置,用以驱动所述打草头在打草模式下切割植被、以及在绕线模式下进行绕线作业;切换机构4,包括与头壳212和线轴211之任一个联接的切换装置42,用以驱动头壳212与线轴211一起啮合或相对脱开;当所述打草机接收到打草信号时,切换装置42受驱动, 带动打草头进入所述打草模式,此时头壳212与线轴211啮合;当所述打草机接收到放线信号时,切换装置42受驱动,带动打草头进入所述放线模式;当所述打草机接收到绕线信号时,切换装置42受驱动,带动打草头进入所述绕线模式。
根据此打草机,不需要用户手动的进行放线和绕线,降低了对所述打草机的操作难度,减少操作步骤,防止用户未及时切换工作模式,使得打草机打草过程中更加灵活,提升了其工作效率。
以上显示和描述了本公开的基本原理、主要特征和优点。本行业的技术人员应该了解,上述实施例不以任何形式限制本公开,凡采用等同替换或等效变换的方式所获得的技术方案,均落在本公开的保护范围内。
工业实用性
本公开提供一种打草机,通过切换头壳和线轴的相对位置关系,可以使得打草机打草过程中更加灵活,提升了其工作效率。

Claims (33)

  1. 一种打草机,所述打草机包括:
    打草头,包括头壳和线轴,线轴用于缠绕打草绳,头壳用于容纳线轴并形成有供打草绳穿过的穿线孔;
    主电机,可操作地与线轴关联,以驱动线轴在打草模式下切割植被、或在放线模式下进行放线、以及在绕线模式下进行绕线,其中,在打草模式下,所述主电机驱动线轴以第一方向且第一速度转动;
    切换机构,包括与头壳关联的切换装置和辅助电机,用以驱动切换装置带动头壳上下移动;
    当所述切换机构接收到打草信号时,所述辅助电机驱动切换装置,带动头壳移动至打草位置进入所述打草模式;当所述切换机构接收到放线信号时,所述辅助电机驱动切换装置,带动头壳移动至放线位置进入放线模式;当所述切换机构接收到绕线信号时,所述辅助电机驱动切换装置,带动头壳移动至绕线位置进入绕线模式。
  2. 如权利要求1所述的打草机,其特征在于:所述头壳包括关联件,所述切换装置包括与辅助电机轴关联的齿轮轴、安装在齿轮轴上的齿轮、与齿轮啮合的齿条,与齿条关联的爪件,其中,所述爪件与头壳的关联件关联。
  3. 如权利要求1所述的打草机,其特征在于:在绕线模式下,所述电机驱动线轴以相对第一方向的第二方向转动。
  4. 如权利要求3所述的打草机,其特征在于:在绕线模式下,所述电机驱动线轴以低于第一速度的第二速度转动。
  5. 如权利要求1所述的打草机,其特征在于:所述打草机具有第一主开关,第一主开关供用户触发启动进入打草模式,所述头壳与线轴啮合,电机驱动线 轴和头壳一起高速正转。
  6. 如权利要求1所述的打草机,其特征在于:所述打草机具有第二开关,第二开关供用户触发启动进入绕线模式。
  7. 如权利要求5所述的打草机,其特征在于:所述打草机具有不同于第一主开关的第三开关,在第一主开关与第三开关被用户触发下启动进入放线模式,头壳与线轴脱开,电机驱动线轴高速正转,促使与头壳速度差放线。
  8. 如权利要求6或7所述的打草机,其特在在于:所述打草机无线连接至少一移动终端,发送打草信号到所述打草机触发打草模式,或发送绕线信号到所述打草机触发绕线模式,或发送放线信号到所述打草机触发放线模式。
  9. 一种打草机,所述打草机包括:
    打草头,包括头壳和线轴;
    主电机,可操作地与线轴关联,以驱动线轴在打草模式下切割植被、或在放线模式下进行放线、以及在绕线模式下进行绕线;
    切换机构,包括与头壳和线轴之任一个关联的切换装置,用以驱动切换装置带动头壳和线轴之其中之一上下移动,以与头壳和线轴之其中另一个啮合或脱开;
    当所述切换机构接收到打草信号时,切换装置受驱动,带动头壳移动至打草位置进入所述打草模式,此时头壳与线轴啮合;当所述切换机构接收到放线信号时,切换装置受驱动,带动头壳移动至放线位置进入放线模式,此时头壳与线轴脱开至第一距离;当所述切换机构接收到绕线信号时,切换装置受驱动,带动头壳移动至绕线位置进入绕线模式,此时头壳与线轴脱开至第二距离。
  10. 如权利要求9所述的打草机,其特征在于:所述头壳包括关联件,所述 切换装置包括与主电机轴关联的齿轮轴、安装在齿轮轴上的齿轮、与齿轮啮合的齿条,与齿条关联的爪件,其中,所述爪件,用以与头壳的关联件联接。
  11. 如权利要求9所述的打草机,其特征在于:所述线轴包括线轴关联件,所述切换装置包括与主电机轴关联的齿轮轴、安装在齿轮轴上的齿轮、与齿轮啮合的齿条,与齿条关联的爪件,其中,所述爪件与所述线轴关联件关联。
  12. 如权利要求9所述的打草机,其特征在于:在打草模式下,所述主电机驱动线轴以第一方向且第一速度和所述头壳啮合一起转动,在放线模式下,所述主电机驱动线轴以第一方向且第一速度和所述头壳脱开差速转动。
  13. 如权利要求9所述的打草机,其特征在于:在绕线模式下,所述主电机驱动线轴以相对第一方向的第二方向转动。
  14. 如权利要求13所述的打草机,其特征在于:在绕线模式下,所述主电机驱动线轴以低于第一速度的第二速度转动。
  15. 如权利要求9所述的打草机,其特征在于:所述打草机具有第一主开关,第一主开关供用户触发启动进入打草模式,所述头壳与线轴啮合,电机驱动线轴和头壳一起高速正转。
  16. 如权利要求15所述的打草机,其特征在于:所述打草机具有第二开关,第二开关供用户触发启动进入绕线模式。
  17. 如权利要求16所述的打草机,其特征在于:所述打草机具有不同于第一主开关的第三开关,在第一主开关与第三开关被用户触发下启动进入放线模式,头壳与线轴脱开,电机驱动线轴高速正转,促使与头壳速度差放线。
  18. 如权利要求9所述的打草机,其特征在于:所述打草机无线连接移动终端,通过移动终端触发打草信号,绕线信号,放线信号并启动进入对应的打草 模式,绕线模式,放线模式。
  19. 如权利要求9所述的打草机,其特征在于:所述打草机包括控制单元,所述控制单元可工作的连接于所述切换机构和所述主电机,所述控制单元根据打草信号,放线信号,绕线信号控制所述切换机构和所述主电机到打草模式、放线模式、绕线模式对应的工作状态。
  20. 如权利要求19所述的打草机,其特征在于:所述打草机包括线长检测装置,所述线长检测装置检测所述打草绳状态,在所述打草绳线短,即小于预设打草长度时发送放线信号到所述控制单元,使所述打草机转换到放线模式,并在所述打草绳大于预设打草长度时,发送打草信号到所述控制单元,使所述打草机转换到打草模式。
  21. 如权利要求20所述的打草机,其特征在于:所述头壳具有外穿线孔,所述线轴具有内穿线孔,所述外穿线孔和所述内穿线孔供打草绳穿过以缠绕于线轴,所述打草机包括线长检测装置,在检测到所述打草机有穿线动作或所述打草绳于穿线孔处被限位时,发送绕线信号到所述控制单元,使所述打草机转换到绕线模式。
  22. 如权利要求21所述的打草机,其特征在于:所述线长检测装置包括微动开关,打击件,所述微动开关设置于所述打草头,所述打击件被设置于所述微动开关的触点的相对位置,以打草绳旋转时周期性带动所述打击件打击所述微动开关而产生的电信号生成相关的放线信号和打草信号。
  23. 如权利要求21所述的打草机,其特征在于:所述线长检测装置包括打击件,霍尔元件,弹性件,以及磁体,所述弹性件连接所述打击件和所述霍尔元件,打草绳旋转时周期性打击所述打击件带动所述弹性件位移,从而改变所述 霍尔元件和所述磁体的相对关系,所述霍尔元件感应磁体产生电信号生成相关的放线信号和打草信号。
  24. 一种打草机,所述打草机包括:
    驱动装置;
    打草头,包括头壳和线轴;
    所述驱动装置,可操作地与线轴关联,以驱动线轴在打草模式下切割植被、或在放线模式下进行放线、以及在绕线模式下进行绕线;
    切换机构,至少包括离合装置,与头壳和线轴之任一个关联,所述离合装置受触发以促使头壳与线轴啮合或脱开;
    当所述切换机构接收到打草信号时,触发离合装置,使得打草头移动至打草位置进入所述打草模式,此时头壳与线轴啮合;当所述切换机构接收到放线信号时,触发离合装置,使得打草头移动至放线位置进入放线模式,此时头壳与线轴脱开至第一距离;当所述切换机构接收到绕线信号时,触发离合装置,使得打草头移动至绕线位置进入绕线模式。
  25. 如权利要求24所述的打草机,其特征在于:所述切换机构关联所述头壳,在打草模式下,所述离合装置带动所述头壳下移与所述线轴啮合,所述驱动装置带动所述线轴和所述头壳以第一方向且第一速度转动,在放线模式下,所述离合装置带动所述头壳上移脱开至所述第一距离,所述驱动装置驱动线轴以第一方向且第一速度和所述头壳脱开差速转动,在绕线模式下,所述离合装置带动所述头壳上移至第二距离,所述驱动装置驱动线轴以低于第一速度的第二速度,且相对于第一方向的第二方向转动。
  26. 如权利要求24所述的打草机,其特征在于:所述切换机构关联所述线轴, 在打草模式下,所述离合装置带动所述线轴上移与所述头壳啮合,所述驱动装置带动所述线轴和所述头壳以第一方向且第一速度转动,在放线模式下,所述离合装置带动所述线轴下移脱开至所述第一距离,所述驱动装置驱动线轴以第一方向且第一速度和所述头壳脱开差速转动,在绕线模式下,所述离合装置带动所述线轴下移至第二距离,所述驱动装置驱动线轴以低于第一速度的第二速度,且相对于第一方向的第二方向转动。
  27. 如权利要求24所述的打草机,其特征在于:所述切换机构关联所述头壳或所述线轴,在打草模式下,所述离合装置带动所述头壳或线轴旋转使得两者啮合,所述驱动装置带动所述线轴和所述头壳以第一方向且第一速度转动,在放线模式下,所述离合装置带动所述头壳或所述线轴旋转,使得两者脱开至所述第一距离,所述驱动装置驱动线轴以第一方向且第一速度和所述头壳脱开差速转动,在绕线模式下,所述离合装置带动所述头壳或所述线轴旋转,使得两者脱开至第二距离,所述驱动装置驱动线轴以低于第一速度的第二速度,且相对于第一方向的第二方向转动。
  28. 如权利要求24所述的打草机,其特征在于:所述打草机具有第一主开关,第二开关,第一主开关供用户触发启动进入打草模式,第二开关供用户触发启动进入绕线模式。
  29. 如权利要求28所述的打草机,其特征在于:所述打草机具有不同于第一主开关的第三开关,在第一主开关与第三开关被用户触发下启动进入放线模式。
  30. 如权利要求28所述的打草机,其特征在于:所述打草机无线连接移动终端,通过移动终端触发打开所述第一主开关,第二开关,第三开关,并进入对应的打草模式,绕线模式,放线模式。
  31. 如权利要求24所述的打草机,所述打草机包括控制单元和线长检测装置,所述控制单元连接所述驱动装置和所述切换机构,所述线长检测装置检测所述打草绳长度,生成对应的打草信号、放线信号、绕线信号,并通过所述控制单元切换到对应的打草模式、放线模式、绕线模式。
  32. 如权利要求31所述的打草机,其特征在于:所述线长检测装置检测所述打草绳状态,在所述打草绳线短,即小于预设打草长度时发送放线信号到所述控制单元,使所述打草机转换到放线模式,并在所述打草绳大于预设打草长度时,发送打草信号到所述控制单元,使所述打草机转换到打草模式。
  33. 如权利要求32所述的打草机,其特征在于:所述头壳具有外穿线孔,所述线轴具有内穿线孔,所述外穿线孔和所述内穿线孔供打草绳穿过以缠绕于线轴,所述打草机包括线长检测装置,在检测到所述打草机有穿线动作或所述打草绳于穿线孔处被限位时,发送绕线信号到所述控制单元,使所述打草机转换到绕线模式。
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