WO2022262762A1 - 割草机 - Google Patents

割草机 Download PDF

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Publication number
WO2022262762A1
WO2022262762A1 PCT/CN2022/098906 CN2022098906W WO2022262762A1 WO 2022262762 A1 WO2022262762 A1 WO 2022262762A1 CN 2022098906 W CN2022098906 W CN 2022098906W WO 2022262762 A1 WO2022262762 A1 WO 2022262762A1
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WO
WIPO (PCT)
Prior art keywords
assembly
blower
lawn mower
wind direction
lawnmower
Prior art date
Application number
PCT/CN2022/098906
Other languages
English (en)
French (fr)
Inventor
韦群力
石冬冬
朱陈
丁敏
王超群
朱飞
范俊
彭亮
Original Assignee
格力博(江苏)股份有限公司
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
Priority claimed from CN202110667075.5A external-priority patent/CN113303178B/zh
Priority claimed from CN202121339839.XU external-priority patent/CN215380408U/zh
Priority claimed from CN202121341560.5U external-priority patent/CN215714914U/zh
Priority claimed from CN202121339069.9U external-priority patent/CN215379928U/zh
Priority claimed from CN202110670378.2A external-priority patent/CN113243190A/zh
Priority claimed from CN202121339751.8U external-priority patent/CN214758312U/zh
Priority claimed from CN202121544380.7U external-priority patent/CN215011659U/zh
Priority claimed from CN202122313957.XU external-priority patent/CN215735809U/zh
Priority to EP22824238.4A priority Critical patent/EP4356710A1/en
Application filed by 格力博(江苏)股份有限公司 filed Critical 格力博(江苏)股份有限公司
Priority to AU2022293632A priority patent/AU2022293632A1/en
Priority to CA3221907A priority patent/CA3221907A1/en
Publication of WO2022262762A1 publication Critical patent/WO2022262762A1/zh
Priority to US18/536,143 priority patent/US20240099196A1/en

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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D69/00Driving mechanisms or parts thereof for harvesters or mowers
    • A01D69/02Driving mechanisms or parts thereof for harvesters or mowers electric
    • 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
    • A01D34/63Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/64Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
    • A01D34/66Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle with two or more cutters
    • 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
    • A01D34/63Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/64Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
    • A01D34/66Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle with two or more cutters
    • A01D34/661Mounting means
    • A01D34/662Mounting means to the front of the vehicle
    • 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
    • A01D34/63Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/64Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
    • A01D34/66Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle with two or more cutters
    • A01D34/667Means for directing the cut crop
    • 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
    • A01D34/63Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/76Driving mechanisms for the cutters
    • A01D34/78Driving mechanisms for the cutters electric
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D67/00Undercarriages or frames specially adapted for harvesters or mowers; Mechanisms for adjusting the frame; Platforms
    • A01D67/04Seats
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01HSTREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/08Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles

Definitions

  • the invention relates to the technical field of lawnmowers, in particular to a lawnmower with a hub motor.
  • the current electric-driven riding lawn mower products are all driven by a drive motor plus a gearbox, and the battery pack is installed at the rear of the frame, directly above the drive motor, and ends at the front end to the seat.
  • This structural design has many disadvantages. Specifically, the size and weight of the drive motor and the gearbox are large, occupy a large space, and are inconvenient to install and replace.
  • the gear transmission has a part of efficiency loss, high noise, and the gear oil needs regular maintenance and replacement. , the gear oil must be emptied during transportation, resulting in unnecessary waste.
  • the battery pack is installed above the drive motor, and the installation position is higher than the rear, which causes the center of the whole machine to be higher than the rear, which is not conducive to driving stability and climbing Stability, and lead to a long power harness connected to the battery pack, increasing safety hazards.
  • Lawn mowers usually use an anti-reverse charging module to dissipate the energy generated when the garden tool brakes, so as to avoid damage to the lawn mower.
  • the anti-reverse charging module includes a reverse charging resistor and a control module, both of which are integrated in the same closed container, so it is difficult to dissipate heat and its installation position is within the range that the human body can easily touch.
  • the reverse charging resistance will continue to heat up, which will cause damage to the components of the control module; and due to the slow heat dissipation of the entire anti-reverse charging module, when the human body accidentally touches or touches the shell of the entire anti-reverse charging module Can cause burns of varying degrees.
  • the purpose of the present invention is to provide a lawn mower with a hub motor, which is used to solve the problem of inconvenient installation and replacement of the drive structure using a drive motor plus a gearbox, high cost, and The technical problems that lead to unreasonable distribution of the center of gravity of the whole machine, poor driving stability and climbing stability.
  • a lawnmower comprising:
  • a walking assembly including a first traveling wheel assembly and a second traveling wheel assembly connected to the vehicle frame;
  • the first road wheel assembly and/or the second road wheel assembly includes a main road wheel and a hub motor, the main road wheel is connected to the hub motor, and the hub motor is arranged outside the frame side;
  • the battery pack is lowered and installed on the vehicle frame and extends below the seat.
  • the first road wheel assembly is arranged at the front end of the vehicle frame, and the first road wheel assembly includes a front wheel and a steering mechanism for controlling the steering of the front wheel;
  • the second traveling wheel assembly is arranged at the rear end of the vehicle frame, and the second traveling wheel assembly includes the main traveling wheel and the in-wheel motor.
  • the seat is arranged between the first road wheel assembly and the second road wheel assembly, and the battery pack is mounted on the tail of the vehicle frame and extends under the seat.
  • the seat is arranged between the first road wheel assembly and the second road wheel assembly, and the battery pack is mounted on the tail of the vehicle frame and extends under the seat.
  • the longitudinal distance between the front end of the battery pack and the axle of the main road wheel is between 340 mm and 400 mm.
  • the distance between the center of gravity of the battery pack and the axle of the main road wheel is between 60 mm and 70 mm.
  • the height of the center of gravity of the battery pack from the ground is between 400mm-500mm.
  • the total length of the in-wheel motor is between 250mm-310mm.
  • the working components include:
  • a drive assembly the drive assembly is installed on the top of the header, and an air vent is arranged between the header and the header;
  • a cutter assembly the cutter assembly is installed on the bottom of the header and connected with the output shaft of the drive assembly.
  • the driving assembly is installed at the mounting hole, and partially extends from the mounting hole into the bottom of the header, and is connected to the cutter assembly.
  • the lawn mower further includes a resistance assembly, the resistance assembly is installed at the bottom of the vehicle frame, and the resistance assembly includes a reverse charging group.
  • the traveling assembly includes a first traveling wheel assembly and a second traveling wheel assembly arranged at the bottom of the vehicle frame, and the resistance assembly is located at the first traveling wheel assembly and the second traveling wheel assembly. Between the second road wheel assembly.
  • the resistance assembly also includes:
  • a mesh plate installed on the mounting bracket
  • the counter charging resistor is located between the heat sink and the mesh plate, and the heat dissipation holes of the mesh plate expose the surface of the counter charging resistor on a side away from the heat sink.
  • the mesh plate is arranged on a side of the resistance assembly facing the advancing direction of the mower.
  • the mower includes a control module, the control module is installed independently from the resistance assembly; the control module is connected to the reverse charging resistance, and the control module is connected to the resistance assembly
  • the anti-reverse charging resistors together constitute an anti-reverse charging module.
  • the lawnmower also includes a blower, and the blower is installed to the front end of the lawnmower; the blower includes:
  • the blower wind direction adjustment mechanism is arranged on the blower frame
  • the blower wind direction adjustment mechanism includes:
  • the gear seat is installed on the skeleton of the hair dryer, wherein the skeleton of the hair dryer has an air outlet;
  • the swing arm is rotated and installed on the gear seat
  • An adjustment handle one end of which is pivotally arranged on the rotating swing arm;
  • one end of the connecting rod assembly is connected to the rotating swing arm;
  • the rotating shaft of the adjusting plate is arranged at the air outlet, and the rotating shaft of the adjusting plate is connected to the other end of the connecting rod assembly through a transmission member;
  • the wind direction regulating plate is located in the air outlet, the wind direction regulating plate is fixedly connected to the rotating shaft of the regulating plate, and the wind direction regulating plate rotates synchronously with the rotating shaft of the regulating plate.
  • the adjustment handle includes a grip portion and a pivot installation portion, and the pivot installation portion is arranged at one end of the grip portion, and the blower wind direction adjustment mechanism further includes a first A torsion spring, the first torsion spring is sheathed on the pivot mounting part, one end of the first torsion spring is connected to the grip part, and the other end is connected to the rotating swing arm.
  • the hair dryer wind direction adjustment mechanism further includes a second torsion spring, the second torsion spring is sleeved on the rotation shaft of the adjustment plate, and one end of the second torsion spring is connected to On the transmission part, the other end is connected to the skeleton of the blower.
  • the blower wind direction adjustment mechanism further includes two joint bearings, one end of the connecting rod assembly is connected to the rotating swing arm through the joint bearing, and the connecting rod assembly The other end is connected to one end of the transmission member through the joint bearing, and the other end of the transmission member is connected to the rotating shaft of the adjustment plate.
  • the lawn mower further includes a blower connected to the lawn mower;
  • the hair dryer includes:
  • An adjustment mechanism is arranged on the blower assembly, and the adjustment mechanism includes:
  • the rotating air duct assembly is connected to the air outlet of the hair dryer
  • a driving mechanism the driving mechanism is in transmission connection with the rotary air duct assembly, and the driving mechanism has an operating component;
  • the setting position of the operating part is a position that can be controlled by the operator when he is in the driving position of the lawn mower, and the driving mechanism is controlled by the operating part to drive the rotating air duct assembly to rotate.
  • the hub motor saves 1/3-1/2 of the cost compared with the motor gearbox solution.
  • the total length of the hub motor is shorter than that of the drive motor plus the gear box, and the weight is lighter, the mass of the rear axle is reduced, and the stability of the whole machine is better.
  • the main part of the hub motor is installed in the rim, and the whole is located outside the frame, the installation space of the battery pack is larger, and the center of gravity of the battery pack is lower and closer to the rear axle. Therefore, the distribution of the center of gravity of the whole machine is more reasonable, and the climbing stability is greatly increased.
  • the hub motor directly drives the wheels, has high efficiency without any transmission loss, does not require gear oil, does not require maintenance, and is convenient for transportation.
  • the hub motor is completely installed on the outside of the vehicle frame, and the outer rotor of the motor rotates with the wheel, so that the heat dissipation performance is significantly improved.
  • the reverse charging resistance is installed independently from the anti-reverse charging module to separate the reverse charging resistance from the control module, so as to protect the control module from being damaged by the high temperature of the reverse charging resistance and prolong the life of the control module .
  • the wind direction adjustment mechanism of the hair dryer designed by the multi-link adjustment mechanism of the lawnmower of the present invention can realize the multi-angle adjustment of the wind direction of the air outlet of the hair dryer, and the installation position of the hair dryer is located at the front of the lawn mower, and the operator is on the lawn mower during the whole adjustment process.
  • the body leans forward in the driving position, and the driver's arm can adjust the wind direction angle by adjusting the handle, which is simple and convenient, saving manpower and time.
  • the lawnmower of the present invention adopts the blower air direction adjustment mechanism composed of the rotating air duct assembly and the driving mechanism, which can realize the stepless adjustment of the direction of the blower outlet, and the installation position of the blower is located at the front of the lawn mower, and the operator is in the whole adjustment process.
  • Lean forward in the driving position on the lawn mower, and the driver's arm can rotate the upper rotating handle to drive the air outlet to rotate, and the angle adjustment of the wind direction can be quickly completed, which is simple and convenient, saving manpower and time.
  • Fig. 1 is a schematic structural view of the garden tool of the present invention.
  • Fig. 2 is a half-sectional view of the vertical plane behind the rear wheelbase of the garden tool of the present invention.
  • Fig. 3 is a sectional view along the direction A-A in Fig. 2 .
  • Fig. 4 shows a front view of the hub motor of the present invention.
  • Fig. 5 shows a left side view of the hub motor of the present invention.
  • Fig. 6 shows the left side view of the hub motor of the present invention, which is a sectional view along the B-B direction in Fig. 5 .
  • FIG. 7 is a schematic diagram of the overall structure of the mowing assembly in an embodiment of the present invention.
  • FIG. 8 is a schematic view of the overall structure of another angle of the mowing assembly in an embodiment of the present invention.
  • FIG. 9 is a schematic structural view of the header in an embodiment of the present invention.
  • Fig. 10 is a schematic view showing another angle structure of the header in an embodiment of the present invention.
  • FIG. 11 is a schematic cross-sectional structure diagram of a driving assembly and a cutter assembly in an embodiment of the present invention.
  • FIG. 12 is an enlarged schematic diagram of A in FIG. 8 .
  • FIG. 13 is an enlarged schematic view at B in FIG. 11 .
  • Fig. 14 is a schematic view showing the assembly structure of the driving assembly and the cutter assembly in an embodiment of the present invention.
  • FIG. 15 is a schematic exploded structure diagram of a driving assembly and a cutter assembly in an embodiment of the present invention.
  • Fig. 16 is a schematic diagram showing the structure of the lower end cap in an embodiment of the present invention.
  • Fig. 17 is a front view of the lower end cover in an embodiment of the present invention.
  • FIG. 18 is a schematic cross-sectional structure diagram of the lower end cover in an embodiment of the present invention.
  • Fig. 19 is a schematic view showing disassembly and assembly of the cutter assembly in an embodiment of the present invention.
  • Fig. 20 is a schematic structural diagram of a lawnmower in an embodiment of the present invention.
  • Figure 21 is a front view of a lawn mower with a resistance assembly of the present invention.
  • Figure 22 shows a top view of a lawn mower with a resistance assembly of the present invention.
  • Fig. 23 is a schematic structural diagram of the resistor assembly of the present invention.
  • Fig. 24 shows an exploded view of the resistor assembly of the present invention.
  • Fig. 25 is a schematic diagram showing the relative movement of the flowing air flow and the resistor assembly.
  • Fig. 26 is a schematic diagram showing the heat dissipation of the resistor assembly under the action of flowing air flow.
  • Fig. 27 is a three-dimensional structural schematic diagram of a hair dryer with a hair dryer wind direction adjustment mechanism of the present invention.
  • Fig. 28 is a schematic exploded view of a hair dryer with a hair dryer wind direction adjustment mechanism of the present invention.
  • Fig. 29 is a right side view of the hair dryer with the hair dryer wind direction adjustment mechanism of the present invention.
  • Fig. 30 is a front view of a hair dryer with a hair dryer wind direction adjustment mechanism of the present invention.
  • FIG. 31 is a partially enlarged view of the area indicated by the dotted circle in FIG. 30 .
  • Fig. 32 is a top view of a hair dryer with a hair dryer wind direction adjustment mechanism of the present invention.
  • FIG. 33 is a partially enlarged view of the area indicated by the circle in FIG. 32 .
  • Fig. 34 shows the front view of the hair dryer with the wind direction adjustment mechanism of the hair dryer of the present invention after the adjustment handle overcomes the torsion force of the first torsion spring and swings away from the ratchet.
  • FIG. 35 is a partially enlarged view of the area indicated by the dotted circle in FIG. 34 .
  • Fig. 36 shows the top view of the hair dryer with the hair dryer wind direction adjustment mechanism of the present invention after the adjustment handle overcomes the torsional force of the first torsion spring and swings away from the ratchet.
  • FIG. 37 is a partially enlarged view of the area indicated by the dotted circle in FIG. 36 .
  • Fig. 38 shows the right side view of the hair dryer with the hair dryer wind direction adjustment mechanism of the present invention when the adjustment handle swings forward.
  • Fig. 39 shows the front view of the hair dryer with the blower wind direction adjustment mechanism of the present invention when the adjustment handle swings forward.
  • Fig. 40 shows the right side view of the hair dryer with the blower wind direction adjustment mechanism of the present invention when the adjustment handle swings backward.
  • Fig. 41 shows the front view of the hair dryer with the wind direction adjustment mechanism of the hair dryer when the adjustment handle swings backward.
  • Fig. 42 is a structural schematic diagram of a hair dryer with a hair dryer wind direction adjustment mechanism installed on the front end of the lawn mower of the present invention.
  • Fig. 43 is a three-dimensional structural schematic diagram of a hair dryer with a second hair dryer tuyere direction adjustment mechanism of the present invention.
  • Fig. 44 is a schematic perspective view of the three-dimensional structure of the rotary air duct assembly of the second blower tuyere direction adjustment mechanism of the present invention.
  • Fig. 45 is an exploded schematic diagram of the rotary air duct assembly of the second blower tuyere direction adjustment mechanism of the present invention.
  • Fig. 46 is a schematic perspective view of the three-dimensional structure of the manual drive mechanism of the second hair dryer tuyere direction adjustment mechanism of the present invention.
  • Fig. 47 is an exploded schematic view of the manual drive mechanism of the second hair dryer tuyere direction adjustment mechanism of the present invention.
  • Fig. 48 is a schematic view showing the tuyere direction adjustment of the hair dryer with the second hair dryer tuyere direction adjustment mechanism of the present invention.
  • Fig. 49 is a schematic view of the rotation angle of the air outlet of the hair dryer with the second air outlet direction adjustment mechanism of the hair dryer according to the present invention.
  • Fig. 50 is a schematic view showing the structure of a hair dryer with a second hair dryer tuyere direction adjustment mechanism installed on the front end of the lawn mower of the present invention.
  • Fig. 51 is a three-dimensional structural schematic diagram of a hair dryer with a third hair dryer tuyere direction adjustment mechanism of the present invention.
  • Fig. 52 is an exploded view of a hair dryer with a third hair dryer tuyere direction adjustment mechanism of the present invention.
  • Fig. 53 is a three-dimensional structural schematic diagram of the third hair dryer tuyere direction adjustment mechanism of the present invention.
  • Fig. 54 is an exploded view of the third hair dryer tuyere direction adjustment mechanism of the present invention.
  • Fig. 55 is a schematic structural diagram of the worm motor of the third hair dryer tuyere direction adjustment mechanism of the present invention.
  • Fig. 56 shows the electrical principle diagram of the hair dryer with the third hair dryer tuyere direction adjustment mechanism of the present invention.
  • Fig. 57 is a structural schematic diagram of a hair dryer with a third hair dryer tuyere direction adjustment mechanism installed on the front end of a lawn mower according to the present invention.
  • the embodiment of the present invention introduces a lawn mower driven by a hub motor 32 .
  • the lawn mower includes a vehicle frame 10 , a seat 60 disposed on the vehicle frame 10 , a manipulation assembly 90 , a walking assembly, a mowing assembly 40 , a battery pack 20 and an electric control box 80 .
  • the seat 60 is arranged at the upper middle of the vehicle frame 10 for the operator to sit on.
  • the manipulation assembly 90 is arranged at a position convenient for the operator to operate, such as two sides of the seat 60, and is used for controlling the mower.
  • Electric control box 80 is arranged on the vehicle frame 10 and is positioned at the below of seat 60, and electric control box 80 is connected with the rear wheel assembly 30 of mowing assembly 40 (as working assembly), walking assembly, and electric control box 80 is used for controlling mowing.
  • Grass assembly 40 the working state of walking assembly.
  • walking assembly is used for the movement of lawn mower, and it comprises a pair of front wheel assembly 50 (the first walking wheel assembly) that is arranged on vehicle frame 10 bottom front ends and is arranged on vehicle A pair of rear wheel assemblies 30 (second road wheel assemblies) at the rear position of the frame 10 bottom.
  • the front wheel assembly 50 is a driven wheel assembly, which includes a front wheel rotatably connected to the bottom front end of the vehicle frame 10 and a steering mechanism for controlling the steering of the front wheel.
  • the front wheel may be a universal wheel, for example.
  • the front wheels can be smooth universal wheels, so as to effectively avoid the impact of the front wheels on the working ground when turning.
  • the vehicle frame 10 is also provided with an anti-rollover assembly 70, and the anti-rollover assembly 70 is arranged on the rear side of the seat 60 to prevent the operator from falling.
  • the anti-rollover assembly 70 The injury caused to the operator due to accidental rollover is reduced, and the personal safety of the operator is greatly guaranteed.
  • rear wheel assembly 30 is as driving wheel assembly, and it comprises hub motor 32 and rear wheel 31 (as main traveling wheel), and the main part of hub motor 32 passes flange bolt 3209 ( See FIG. 6 ) installed in the rim of the rear wheel 31 , the whole is located outside the vehicle frame 10 , and the rear wheel 31 is directly driven by the hub motor 32 .
  • the differential movement of the two rear wheels 31 can be controlled respectively by the two hub motors 32, which can effectively increase the steering angle of the rear wheels 31, so that the turning radius of the rear wheel assembly 30 approaches zero infinitely, further improving the lawn mower. practicability and performance.
  • the in-wheel motor 32 is installed outside the vehicle frame 10, and the fixing bolts 3206 and lock nuts 3205 to be introduced later are fixedly connected with the vehicle frame 10, and the installation and disassembly are very convenient.
  • the hub motor 32 includes a motor stator shaft 3202 , a motor outer rotor 3201 , a first outer end cover 3203 , a second outer end cover 3204 , a disc brake 3208 and a fixing bracket 3207 .
  • the motor stator shaft 3202 is fixed, fixed together with the vehicle frame 10, and is located at the center of the motor outer rotor 3201.
  • the axial length of the motor stator shaft 3202 is greater than the axial length of the motor outer rotor 3201.
  • One end of the motor stator shaft 3202 is formed by the first The center of the two outer end caps 3204 protrudes, and is fixedly connected with the vehicle frame 10 through the locking nut 3205 after passing through the vehicle frame 10 .
  • the outer rotor 3201 of the motor, the first outer end cover 3203, and the second outer end cover 3204 form a housing cavity, wherein the first outer end cover 3203 passes through a bearing (not marked ) is supported at one end of the motor stator shaft 3202, the second outer end cover 3204 is supported at the middle of the motor stator shaft 3202 through another bearing (not marked), and the two sides of the motor outer rotor 3201 are respectively connected to the first outer end cover 3203 by bolts It is fixedly connected with the second outer end cover 3204 , therefore, the motor outer rotor 3201 , the first outer end cover 3203 and the second outer end cover 3204 can rotate together relative to the motor stator shaft 3202 .
  • the fixing bracket 3207 is arranged on the side of the second outer end cover 3204 away from the first outer end cover 3203, and is fixedly connected with the shaft sleeve 32021, and the shaft sleeve 32021 is sleeved on On the part of the motor stator shaft 3202 protruding from the second outer end cover 3204 , the fixing bracket 3207 is arranged around the sleeve 32021 , and the end of the fixing bracket 3207 away from the second outer end cover 3204 is fastened to the vehicle frame 10 through fixing bolts 3206 .
  • the fixing bracket 3207 and the shaft sleeve 32021 may be connected by welding, for example.
  • the number of fixing bolts 3206 may be four, for example.
  • the disc brake 3208 includes a brake disc 32081 and a brake caliper 32082.
  • the brake disc 32081 is arranged between the second outer end cover 3204 and the frame 10, and the brake disc 32081 is sleeved on the shaft.
  • the sleeve 32021 or the motor stator shaft 3202 is fixed with the second outer end cover 3204 by bolts, and the brake caliper 32082 is fixedly connected to the fixing bracket 3207 and arranged on the edge of the brake disc 32081.
  • the high-pressure brake fluid pushes the brake block of the brake caliper 32082 to clamp the brake disc 32081 to produce an actuation effect.
  • the in-wheel motor 32 is completely installed outside the vehicle frame 10, and is connected with the vehicle frame 10 by fixing bolts 3206 and lock nuts 3205, and it is easy to install and disassemble. Simple and convenient; the wheel hub motor 32 directly drives the wheels, with high efficiency and basically no transmission loss, the transmission is more efficient, and no gear oil is required, no maintenance is required, and it is convenient to transport; the hub motor 32 is compared with the existing driving scheme of driving motor plus gearbox It can save 1/3-1/2 of the cost, and the cost is lower; the total length D of the hub motor is between 250mm-310mm, such as 280mm, and the weight of the hub motor is between 42kg-52kg, such as 47kg.
  • the total length D of the motor 32 is shorter than the total length of the drive axle (drive motor plus gearbox), the weight can be reduced by about 1/3, the weight is lighter, the mass of the rear axle is reduced, and the stability of the whole machine is better;
  • the motor 32 is completely installed on the outside of the vehicle frame 10 , and the hub motor 32 rotates with the wheels during operation, and its heat dissipation capacity far exceeds that of the driving scheme of the driving motor and the gear box installed inside the vehicle frame 10 .
  • the mower uses two hub motors 32 to directly drive the rear wheel 31, the main part of the hub motor 32 is installed in the rim (also called the rim), and the hub motor 32 can be completely mounted on the outside of the frame 10.
  • the battery pack 20 is set in a flat and long strip shape, which can increase the volume of the battery pack 20.
  • the battery pack 20 is lowered and installed inside the vehicle frame 10 and extends to the seat 60.
  • the longitudinal distance L5 between the front end of the battery pack 20 and the cross-sectional plane of the rear wheel 31 is between 340 mm and 400 mm, such as 370 mm;
  • the distance C between the center of gravity of the battery pack 20 and the rear axle is between 60 mm and 70 mm, such as 65 mm
  • the height H6 between the center of gravity of the battery pack 20 and the ground is between 400mm-500mm, such as 450mm.
  • the center of gravity of the battery pack 20 increases the installation space of the battery pack 20 by changing the structure of the vehicle frame 10, so that the center of gravity of the battery pack 20 moves forward, and the center of gravity of the battery pack 20 drops, so that the height of the position close to the center of gravity of the whole machine from the ground is greatly reduced and is closer to the axis of the rear wheel 31,
  • the center of gravity of the whole machine is at the optimal position (that is, the half position of the front and rear wheelbase), which increases the driving stability and climbing stability of the whole machine.
  • the battery pack 20 is flat and long, the surface area of the upper and lower surfaces can be increased, and the heat dissipation capacity of the battery pack 20 is also improved.
  • the part extension of battery pack 20 is installed under the seat 60, so the front end of battery pack 20 can go out, and one end of power harness 81 is connected with the front end of battery pack 20, and the other end is connected with the front end of battery pack 20.
  • the electric control box 80 is connected, and the direction of the power wire harness 81 is shown in FIG. 2 , which can greatly shorten the length of the power wire harness 81 and improve safety.
  • the lawn mower driven by the wheel hub motor 32 in this embodiment is compared with the lawn mower that uses a drive motor and a gear box that is basically the same in size and size.
  • the installation space of the battery pack 20 is increased, and the distance between the installation surfaces of the battery pack 20 is increased.
  • the H4 distance from the ground is about 330mm, and the installation space of the battery pack 20 is L4(860mm)*W1(710mm)*H5(240mm).
  • the length of the battery pack 20 has been increased by 40%, and the capacity has been increased by 1/3.
  • the longitudinal distance L5 from the rear wheel 31 to the cross section of the axle of the rear wheel 31 is about 370 mm
  • L3 means that the length of the rear overhang remains unchanged
  • the distance C between the center of gravity of the battery pack 20 and the rear axle is about 65 mm
  • the height H6 of the center of gravity of the battery pack 20 from the ground About 450mm
  • the center of gravity of the battery pack 20 moved forward by 135mm
  • the center of gravity of the battery pack 20 dropped by 170mm.
  • the center of gravity of the whole machine moved closer to the optimal position (that is, half of the front and rear wheelbase) by 50mm
  • the center of gravity of the whole machine The height is thus reduced by about 40mm, and the climbing stability is greatly increased.
  • the total length D of the wheel hub motor 32 is about 280 mm, and the weight is about 47 kg, which is shorter than the drive axle of the lawn mower that uses the drive motor and the gear box with basically the same specifications and dimensions. 40%, the weight is about 1/3 lighter, the mass of the rear axle is reduced, and the stability of the whole machine is better.
  • the lawn mower driven by the wheel hub motor 32 in this embodiment is compared with the lawn mower driven by a drive motor and a gear box with basically the same specifications and dimensions. Since the front end of the battery pack 20 is used to lead out, one end of the power harness 81 is connected to the front end of the battery pack 20. , the other end is connected with the electric control box 80, and the trend of the power supply harness 81 is changed as shown in Figure 2, and the length of the power supply harness 81 is shortened by about 400mm, which improves the safety.
  • the lawnmower of the present embodiment adopts the rear wheel driven by the hub motor 32 as the main traveling wheel, it can be understood that, in other embodiments, the lawnmower can also adopt the front wheel driven by the hub motor 32 as the main walking wheel.
  • the battery pack 20 is lowered and installed on the front part of the vehicle frame 10 and extends to the bottom of the seat 60 .
  • the design idea of the lawnmower with the hub motor 32 in this embodiment can also be applied to other garden tools, as a tool with the hub motor 32
  • the garden tool, the vehicle frame 10 and the battery pack 20 of the garden tool can refer to the above-mentioned similar design, and the specific types of the working components of the garden tool can be selected according to actual needs.
  • the lawn mower includes a mowing assembly 40, and the mowing assembly 40 includes Header 41, drive assembly 42 and cutter assembly 43, wherein, drive assembly 42 and cutter assembly 43 are installed on the header 41, and the output shaft 4201 of cutter assembly 43 and drive assembly 42 is fixedly connected, the second in drive assembly 42
  • the drive motor 4205 starts to rotate, thereby driving the cutter assembly 43 to rotate to cut the lawn, and the mower is installed at the bottom of the frame 10 of the mower.
  • the top of the header 41 is recessed downwards to form a motor installation groove 4101
  • the bottom of the motor installation groove 4101 is provided with an installation hole 4102
  • the drive assembly 42 is installed in the motor installation groove 4101 and the output shaft 4201 of the driving assembly 42 extends from the mounting hole 4102 to the bottom of the header 41 to connect with the cutter assembly 43, thereby driving the cutter assembly 43.
  • the header The bottom of header 41 is formed with a cutter accommodation cavity 44, and the cutter assembly 43 is located in the cutter accommodation cavity 44, and is fixedly connected with the output shaft 4201 of the drive assembly 42.
  • a baffle plate 45 is arranged around the bottom of the header 41, and the baffle plate 45
  • the height is higher than the height of the cutter assembly 43, that is, the distance between the cutter assembly 43 and the header 41 is less than the distance between the lower end of the baffle plate 45 and the header 41, so that the cutter assembly 43 is accommodated by the combination of the baffle plate 45 and the header 41.
  • the driving assembly 42 includes an output shaft 4201 and a second driving motor 4205 , and the bottom of the second driving motor 4205 includes a lower end cover 4206 .
  • the lower end cover 4206 is installed in the motor installation groove 4101 of the header 41, and partly located in the installation hole 4102, the second driving motor 4205 is installed on the lower end cover 4206, and is fixedly connected by bolts, and the output shaft One end of 4201 is connected with the second drive motor 4205, and the other end protrudes from the through hole in the middle of the lower end cover 4206, and extends into the cutter accommodation cavity 44 to be fixedly connected with the cutter assembly 43.
  • Ventilation holes 4103 are arranged between them, so that air can enter the cutter accommodation chamber 44 of the header 41 along the surface of the header 41, ensuring that the air volume of the grass discharge is not affected, and at the same time, the heat emitted by the second drive motor 4205 is dissipated. Absorbed into the cutting tool receiving cavity 44 of the header 41, and discharged with the rotation of the cutting tool assembly 20, so as to improve the heat dissipation effect of the second driving motor 4205.
  • the lower end cover 4206 includes a main body part 4207, a boss part 4208 and a partition 4209, the main body part 4207 and the boss part 4208 are fixedly connected, and Coaxially arranged, the partitions 4209 are distributed around the boss part 4208 at intervals, and are fixedly connected with the main body part 4207 and the boss part 4208, and the lower end cover 4206 is similar to a ring structure, that is, a through hole is arranged in the middle of the lower end cover 4206.
  • the output shaft 4201 protrudes from the through hole and connects with the cutter assembly 43 .
  • the main body part 4207, the boss part 4208 and the partition plate 4209 are integrally formed.
  • the boss part 4208 is located in the installation hole 4102, and the diameter of the boss part 4208 is smaller than the diameter of the installation hole 4102, and the main body part 4207 is located in the motor
  • the main body part 4207 is fixedly connected to the second driving motor 4205 of the driving assembly 42 in the installation slot 4101 , and the diameter of the main body part 4207 is larger than the diameter of the installation hole 4102 .
  • the partition 4209 includes a first partition 42091 and a second partition 42092, and the first partition 42091 and the second partition 42092 connect the lower end
  • the cover 4206 is separated from the header 41 and forms a gap, and the gap is a vent 4103.
  • the first dividing plate 42091 is arranged on the outer surface of the boss portion 4208, and the outer contour of the first dividing plate 42091 is circular.
  • the installation hole 4102 is matched and installed, because the diameter of the boss part 4208 is less than the diameter of the installation hole 4102, and the effect of the first dividing plate 42091, the boss part 4208 and the header 41 are separated from each other to form a gap, and the second dividing plate 42092 It is located at the bottom of the main body part 4207, and is installed in contact with the bottom of the motor installation groove 4101 to form a gap between the header 41 and the main body part 4207, and the gap between the main body part 4207 and the boss part 4208 and the header 41 forms Vent 4103.
  • a grass outlet 46 is provided on the mowing platform 41, and is positioned at one side of the mowing platform 41, and the grass outlet 46 is installed with The grass discharge cover 47, when the cutter assembly 43 was turned on and rotated, the air in the cutter accommodation chamber 44 of the header 41 was discharged from the grass outlet 46 on the right side of the header 41 along with the rotation of the cutter assembly 43, and the lower edge of the header 41 When the supplementary air around is not as fast as the exhausted air, a negative pressure state will be formed in the cutter accommodation chamber 44 of the header 41. If the air is not replenished in time at this time, the cut grass will blow the cutter accommodation chamber 44 of the header 41.
  • the air can enter the surface of the header 41 along the surface of the header 41 In the cutter accommodation cavity 44, it is ensured that the air volume of the grass discharge is not affected, so as to discharge the grass smoothly.
  • the air flow will also speed up the air flow around the second drive motor 4205, and the heat emitted by the second drive motor 4205 will be absorbed into the cutter accommodation cavity 44 of the header 41, and as the cutter assembly 43 rotates, is discharged, thereby improving the heat dissipation effect of the motor.
  • the cutter assembly 43 includes a blade mounting seat 4301 and a blade 4302, the blade 4302 is installed on the bottom of the blade mounting seat 4301, and the bolts 4303 are sequentially passed through the blade 4302 and the blade mounting seat 4301 are threadedly connected with the output shaft 4201 to press and fix the blade 4302 and the blade mounting seat 4301 on the output shaft 4201, and a disc spring 4304 is arranged between the bolt 4303 and the blade 4302.
  • an anti-rotation structure is provided between the bottom of the blade mounting seat 4301 and the blade 4302, that is, a special-shaped protrusion structure 43011 is provided on the bottom of the blade mounting seat 4301, and a special-shaped protrusion structure 43011 is provided on the blade 4302.
  • the opening 43021 matched with the special-shaped protrusion structure 43011 is used to prevent rotation between the blade 4302 and the blade mounting seat 4301, thereby affecting the mowing efficiency.
  • the blade mounting seat 4301 is fixedly connected to the output shaft 4201
  • the blade 4302 is connected to the blade mounting seat 4301 through bolts 4303 or other installation methods are adopted.
  • a plurality of blades 4305 are arranged on the side of the blade mounting seat 4301 that is close to and away from the blade 4302, and when the cutter assembly 43 rotates, the blades 4305 also rotate together , can also dissipate heat for the second drive motor 4205, further improving the heat dissipation effect of the mower.
  • what adopt is double cutter structure namely this mower is equipped with two cutter assemblies 43, and is respectively equipped with a drive assembly 42, and the distance between the tip of the blade 4302 and the ground is 1 inch to 2 inches to improve mowing effectiveness.
  • the bottom of the lower end cover 4206 that is, a blade loading and unloading hole 4306 is provided on the side close to the cutter assembly 43, and a fixing tool 48 is used to connect with the blade loading and unloading hole 4306 , and then connected to the bolt 4303 through a dismounting tool 49, the dismounting tool 49 is rotated so that the bolt 4303 rotates together for disassembly or installation, and the rotation of the blade 4302 is limited due to the action of the fixing tool 48, preventing the blade 4302 from following
  • the rotation of dismounting tool 49 rotates, thereby realizes the loading and unloading or changing of cutter, makes its dismounting process more labor-saving, is convenient to carry out loading and unloading and changing cutter.
  • the output shaft 4201 is sleeved with a bearing 4202 and the oil seal structure 4203, the bearing 4202 and the oil seal structure 4203 are all located in the through hole of the lower end cover 4206, and the oil seal structure 4203 is located below the bearing 4202, so as to prevent water from entering the lawn mower when mowing.
  • the baffle plate 213 is integrally formed with the lower end cover 4206, that is, the baffle plate 213 is a part of the lower end cover 4206, of course, in some other embodiments, the baffle plate 213 can also be set as a separate part, and connected with the lower end cover 4206 through a hole internally connected together.
  • a baffle 213 is provided in the through hole of the lower end cover 4206, the baffle 213 is arranged around the output shaft 4201, the baffle 213 is located below the oil seal structure 4203, and a small gap is left between the baffle 213 and the output shaft and because the blade mounting seat 4301 is also fixedly connected to the output shaft 4201, and partly located in the through hole 231, and there is also a small gap between the blade mounting seat 4301 and the inner surface of the through hole of the lower end cover 4206, When the mower is working, the dew enters the through hole of the lower end cover 4206 through the gap between the blade mounting seat 4301 and the lower end cover 4206.
  • the dew can only come from the original path. Flow out or flow in the direction towards the output shaft 4201, and then move upward through the gap between the baffle plate 213 and the output 21, and again due to the effect of the oil seal structure 4203, the dew can only return in the same way, that is, the lower end cover 4206, the baffle plate 213 1.
  • the mutual cooperation between the output shaft 4201 and the oil seal structure 4203 makes the gap between them form a labyrinth loop to further prevent water mist from entering the second drive motor 4205 and ensure the service life of the mower.
  • the air flow around the motor is also accelerated, and the heat emitted by the motor is absorbed into the cavity of the header through the vent In this way, it is discharged with the rotation of the tool, which improves the heat dissipation effect of the motor.
  • blades are also designed on the blade mounting seat, which can rotate together with the blades, and can also dissipate heat for the motor, further improving the heat dissipation effect of the lawnmower in the present invention.
  • the setting of the air vent also ensures that the grass discharge air volume of the lawn mower is not affected, so as to achieve the purpose of smooth grass discharge.
  • a small gap is reserved between the output shaft of the drive motor and the flange plate in the lower end cover, and then the A small gap is reserved between the blade mounting seat and the flange of the lower end cover to form a labyrinth circuit, coupled with the barrier of the oil seal structure, to minimize the entry of water vapor into the interior of the drive motor and ensure the service life of the mowing motor .
  • the present invention also introduces a lawnmower 1000 with a resistance assembly 1 .
  • the arrangement of the resistance assembly 1 of the present invention can also be applied to riding washing machines, riding vacuum cleaners or other garden tools.
  • the front wheel assembly 50 can be used as a driven wheel assembly, which includes a front wheel rotatably connected to the front end of the bottom of the vehicle frame 10 and a steering mechanism for controlling the steering of the front wheels.
  • the rear wheel assembly 30' can be used as a driving wheel assembly, which includes a drive axle 32' mounted on the vehicle frame 10 rear end and a rear wheel 31 connected to the drive axle 32'.
  • the mowing assembly 40 is mounted on the bottom of the frame 10 between the front wheel assembly 50 and the rear wheel assembly 30'.
  • the electric control box is connected with the rear wheel assembly 30 ' of the mowing assembly 40 and the walking assembly, and the electric control box is used to control the working state of the mowing assembly 40 and the walking assembly.
  • FIG. 23 is a schematic structural view of the resistor assembly 1 ;
  • FIG. 24 is an exploded view of the resistor assembly 1 .
  • the resistor assembly 1 is installed and fixed on the bottom of the vehicle frame 10 , and the resistor assembly 1 includes a reverse charging resistor 102 , a heat sink 101 , a mounting bracket 103 and a mesh plate 104 .
  • the heat sink 101 is fixedly installed on one side of the mounting bracket 103
  • the reverse charging resistor 102 is mounted on the side of the heat sink 101 facing the mounting bracket 103
  • the mesh plate 104 is mounted on the side of the mounting bracket 103 away from the heat sink 101
  • the charging resistor 102 is located between the heat sink 101 and the mesh plate 104 , and the heat dissipation holes of the mesh plate 104 expose the surface of the counter charging resistor 102 away from the heat sink 101 .
  • the structure of the resistance assembly 1 will be described below by using the actual position where the resistance assembly 1 is installed on the lawnmower 1000 .
  • the heat sink 101 can be a rectangular plate-shaped structure.
  • heat dissipation ribs are provided on the back of the heat sink 101 .
  • the shape of the heat sink 101 can be flexibly adjusted according to actual needs, for example, it can also be a circular plate structure, an oval plate structure, a trapezoidal plate structure, and the like.
  • the radiator 101 is fixedly installed on the rear side of the counter charging resistor 102, in order to dissipate the heat generated by the counter charging resistor 102 into the air in time, between the counter charging resistor 102 and the radiator 101 It is also filled with thermal conductive glue to achieve the bonding of the two.
  • the anti-charging resistor 102 and the heat sink 101 can be fixed by hexagon socket bolts 107 and locknuts 108 .
  • the mounting bracket 103 is disposed on a side of the heat sink 101 that is not provided with heat dissipation ribs.
  • the mounting bracket 103 includes a first mounting portion 1031 , a second mounting portion 1032 and a third mounting portion 1033 .
  • the first installation part 1031 is arranged on the two ends of the top of the installation bracket 103, the first installation part 1031 is a flat plate arranged horizontally, and the first installation part 1031 is used to install the resistance assembly 1 on the vehicle.
  • Rack 10 Specifically, the first installation part 1031 is provided with a second installation hole 1034, and the two bolts of the height adjustment mechanism of the mowing assembly 40 can be used to fix the resistance assembly 1 between the drive axle 32' and the cutting platform of the mowing assembly 40. Location.
  • the second mounting part 1032 is arranged on the two ends of the bottom of the mounting bracket 103, the second mounting part 1032 is a strip plate extending in the vertical direction, and the second mounting part 1032 is parallel to the heat sink 101 It is provided that the first reed nut 105a is disposed on the second mounting portion 1032 . There are through holes at the left and right ends of the heat sink 101, as the first mounting hole 1011, the first combination bolt 106a passes through the first mounting hole 1011 and the first reed nut 105a, so that the heat sink 101 is fixedly installed on the second on the mounting part 1032.
  • the first combined bolt 106a refers to a three-unit assembly consisting of an outer hexagonal bolt coupled with a spring washer and a flat washer combined with rubbing teeth.
  • the third installation part 1033 is arranged on the two ends of the bottom of the installation bracket 103, and is located at the end of the second installation part 1032 away from the notch 1035, the third installation part 1033 is from the second installation part
  • the end of 1032 away from the notch 1035 is a strip plate extending forward
  • the third mounting part 1033 is arranged parallel to the fourth mounting part 1042 of the mesh plate 104
  • the third mounting part 1033 is provided with a second reed nut 105b.
  • a notch 1035 is opened on the mounting bracket 103, and the notch 1035 is located between the two second mounting parts 1032.
  • One end of the orifice plate 104 passes through the notch 1035 , so that the airflow passes through the heat dissipation holes of the mesh plate 104 and directly blows on the front of the counter-charging resistor 102 to realize rapid cooling.
  • the notch 1035 can also be replaced by an opening.
  • the mesh plate 104 is disposed on one side of the resistance assembly 1 facing the advancing direction of the mower, and the mesh plate 104 covers the front side and both sides of the counter charging resistor 102 .
  • the mesh plate 104 includes a main body 1041 and two fourth installation parts 1042, and the two fourth installation parts 1042 are from the left and right ends of the main body 1041 to the rear side (that is, the side of the main body 1041 facing the heat sink 101)
  • the extended side plate has a third mounting hole 1043 on the fourth mounting part 1042, and the second combination bolt 106b passes through the third mounting hole 1043 and the second reed nut 105b to fix the mesh plate 104 on the second Three mounting parts 1033 on.
  • the second combined bolt 106b refers to a three-unit assembly consisting of an outer hexagonal bolt coupled with a spring washer and a flat washer combined with rubbing teeth.
  • a plurality of heat dissipation holes are arranged at intervals on the main body portion 1041 of the mesh plate 104, and the heat dissipation holes may be, for example, round holes, strip holes, cross holes, Y-shaped holes, triangular holes or others.
  • the size of the cooling hole needs to meet the requirements of safety regulations, which can avoid the risk of being burned by fingers directly touching the anti-charging resistor 102 .
  • the heat dissipation hole is a round hole, and the diameter of the round hole is between 7mm-9mm, such as 8mm, and the diameter meets the requirements of safety regulations.
  • the outer surface of the fourth mounting part 1042 of the mesh plate 104 is provided with the words "HOT" (also can be the words “be careful of scalding” or others) as the anti-scald warning sign 1044, reminding the need
  • HAT also can be the words "be careful of scalding” or others
  • the anti-scald warning sign 1044 reminding the need
  • the personnel who disassemble and maintain the resistor assembly 1 should not touch this part with their hands just after the machine finishes working. They need to wait for a period of time and wait for the heat of the anti-charging resistor 102 to dissipate naturally before disassembling and repairing.
  • the setting of the mesh plate 104 in addition to the effect of avoiding the risk of fingers directly touching the anti-charging resistance 102 and being burned, also has the following effects: when the lawn mower is moving, the airflow speeds up after passing through the holes of the heat dissipation holes, and also That is, the mesh plate 104 can accelerate the air circulation on the surface of the anti-charging resistor 102 to quickly help the counter-charging resistor 102 to cool down; The fire caused by excessive temperature improves the safety of the lawn mower; the anti-charging resistor 102 is placed independently away from the electrical components of the control module, so that the electrical components will not be damaged by high temperature.
  • the resistance assembly 1 is fixedly installed on the bottom of the vehicle frame 10 of the lawn mower, so that the reverse charging resistance 102 is separately set from the control module, which can prevent the high temperature of the reverse charging resistance 102 during the mowing operation. Damage to the electrical components of the control module prolongs the life of the control module.
  • the mounting point on the complete lawnmower can be used for installation and fixation.
  • the two bolts of the height adjustment mechanism of the mowing assembly 40 can be used to fix the resistance assembly 1 on the drive axle 32 ′ of the rear wheel assembly 30 ′ and the middle position of the header of the mowing assembly 40, so that all surfaces of the entire resistance assembly 1 It is completely exposed in the air, and can exchange heat with the air to the greatest extent.
  • the mesh plate 104 on the front side of the reverse charging resistor 102 can also block the broken grass, leaves and other sundries splashed from the cutting platform to prevent the broken grass and leaves Other sundries fall onto the surface of the resistor and are dried and ignited, causing safety accidents.
  • installing the resistance assembly 1 in the middle of the header of the driving axle 32 ′ and the grass mowing assembly 40 can not only allow the reverse charge resistance 102 to have good heat dissipation, but also can use the width of the header of the grass mowing assembly 40 , the shielding of the rear wheel 31 of the rear wheel assembly 30 ′ prevents the human body from directly contacting the anti-charging resistance 102 , so as to avoid being scalded by the high temperature of the anti-charging resistance 102 .
  • Figure 25 shows a schematic diagram of the relative movement of the flowing airflow and the resistance assembly 1.
  • the airflow will directly pass through the holes on the mesh plate 104 to accelerate and impact on the surface of the counter-charging resistance 102, taking away the counter-charging resistance 102 generated heat.
  • Figure 26 shows the schematic diagram of the heat dissipation of the resistance assembly 1 under the action of the flowing air flow. Since the air flow velocity around the resistance assembly 1 increases, and the flow velocity of the heat sink 101 remains unchanged, the rear side of the heat sink 101 (where the heat dissipation ribs are arranged) One side) forms a negative pressure, so that the heat on the heat sink 101 quickly dissipates to the surroundings.
  • the reverse charging resistance is installed independently from the anti-reverse charging module, so that the reverse charging resistance and the control module are independently set, so as to protect the control module from being damaged by the high temperature of the reverse charging resistance and prolong the life of the control module .
  • the resistance assembly of the invention has a simple structure and is convenient for installation and replacement.
  • blower wind direction adjustment mechanism 200 with a multi-link design on the blower 2000. Realize the adjustment of the wind direction of the hair dryer 2000 outlet.
  • blower 200 is attached to the front end of lawnmower 1000 .
  • the hair dryer 2000 includes a hair dryer assembly 100 and a hair dryer wind direction adjustment mechanism 200 installed on the hair dryer assembly 100 .
  • the blower assembly 100 includes a blower frame 150, a motor assembly (not shown) and a blade assembly (not shown) accommodated in the blower frame 150, a handle 120 arranged above the blower frame 150, a handle 120 arranged below the blower frame 150,
  • the base 110 supporting the entire blower assembly 100 , the second connecting piece 140 arranged on one side of the blower frame 150 for connecting with the lawnmower 1000 , and the controller 130 set on the blower frame 150 .
  • the blower frame 150 includes an air outlet 151, and the air outlet 151 is arranged on one side of the blower frame 150, and the second connector 140 is arranged on the side of the blower frame 150 near the mower 1000 (see Fig. 42 ), which can be connected by the second connection.
  • the member 140 installs the blower 2000 on the front end of the mower 1000 .
  • the hair dryer wind direction adjustment mechanism 200 includes a gear seat 220, a rotating swing arm 230, an adjustment handle 210, a connecting rod assembly 240, an adjustment plate rotation shaft 250 and an air direction adjustment plate 260.
  • the gear seat 220 is installed on the blower frame 150, and the rotating swing arm 230 is rotatably mounted on the gear seat 220.
  • One end of the adjusting handle 210 is pivotally arranged on one end of the rotating swing arm 230, and one end of the connecting rod assembly 240 is connected to the rotating swing arm 230.
  • the other end of the adjustment plate rotation shaft 250 is passed through the air outlet 151 of the blower frame 150.
  • the wind direction adjustment plate 260 is located on the blower frame. In the air outlet 151 of 150 , the wind direction adjusting plate 260 is fixedly connected to the rotating shaft 250 of the adjusting plate, and the wind direction adjusting plate 260 can rotate synchronously with the rotating shaft 250 of the adjusting plate.
  • the hair dryer wind direction adjustment mechanism 200 of the present invention swings back and forth through the adjustment handle 210 to drive the rotary swing arm 230 to perform a rotary motion around the rotating shaft (shaft pin 231), and the rotary swing arm 230 drives the connecting rod assembly 240 to move up and down, and the connecting rod assembly 240
  • the rotating shaft 250 of the adjusting plate is driven to rotate, and the rotating shaft 250 of the adjusting plate drives the wind direction adjusting plate 260 to swing, thereby changing the size of the air outlet 151 and the direction of the wind.
  • the bottom end of the gear seat 220 can be installed and fixed on the top of the blower skeleton 150 of the blower 2000 by bolts or welding, for example, near one end of the mower 1000, so that The operator leans forward in the driving position of the lawn mower 1000, and the operator's arm can adjust the angle of the wind direction by adjusting the handle 210, without getting off the lawn mower 1000 and adjusting the wind direction at the air outlet 151. Simple and convenient, saving manpower and time.
  • gear seat 220 can also be arranged at other suitable positions of the blower frame 150, as long as it can be ensured that the operator leans forward in the driving position of the lawn mower 1000, and the operator's arm can reach the adjustment handle 210 That's it.
  • the top of the shift seat 220 is provided with a strip-shaped chute 221 extending generally along the front and rear directions, and the strip-shaped chute 221 limits the movement of the adjustment handle 210 Range; on the left side wall (or right side wall) of the elongated chute 221, a plurality of ratchet gear slots 223 for adjusting the limit of the handle 210 are arranged at intervals.
  • the angle of each ratchet gear slot 223 is engaged with the corresponding ratchet gear slot 223.
  • the number of each ratchet gear slot 223 corresponds to the number of gear positions.
  • Each ratchet gear slot 223 can realize the adjustment of an angle.
  • 27-33 show the situation that includes 5 ratchet gear slots 223 .
  • the adjusting handle 210 includes a gripping portion 212 and a pivot mounting portion 213 .
  • the grip part 212 is a rod-shaped structure, and the upper end of the grip part 212 is covered with a handle cover 211.
  • the handle cover 211 is provided for the convenience of the user's hand holding.
  • the side wall of the grip part 212 is close to the ratchet gear slot 223.
  • One side is provided with a ratchet 214 that matches the ratchet gear slot 223.
  • the pivot mounting part 213 is a tubular structure, the sidewall of the pivot mounting part 213 is mounted on the lower end of the handle part 212 , and the axial direction of the pivot mounting part 213 is perpendicular to the axial direction of the handle part 212 .
  • the pivot mounting part 213 is pivotally arranged on the handle mounting part 238 of the rotating swing arm 230 through the pin shaft 236, and one end of the pin shaft 236 passes through one end side wall of the upper part of the rotating swing arm 230 and the center hole of the pivot mounting part 213 successively. It passes through the other end side wall of the upper part 238 of the handle mounting part of the rotating swing arm 230 , and is limited by the first R pin 232 and the first washer 233 .
  • the axial direction of the pivot mounting portion 213 and the axial direction of the gripping portion 212 may also be in a non-perpendicular structure.
  • a first torsion spring 290 is sheathed on the pivot mounting part 213 of the adjustment handle 210, and one end of the first torsion spring 290 is fixed to the end of the adjustment handle 210.
  • the other end of the first torsion spring 290 is fixed on the rotating swing arm 230, and the first torsion spring 290 acts on the force on the adjustment handle 210, so that the adjustment handle 210 has a ratchet towards the gear seat 220 all the time.
  • the direction of the shift groove 223 (the left side in FIG. 28 ) has a tendency of movement.
  • the swivel swing arm 230 is substantially L-shaped, and the swivel swing arm 230 includes a handle mounting portion 238 and a connecting rod mounting portion 237 connected to each other.
  • the rotating swing arm 230 is mounted on the shift seat 220 through a shaft pin 231 , and the rotating swing arm 230 can rotate around the pin shaft 231 .
  • the shaft pin 231 is fixedly installed on the shift seat 220 through the first bolt 234 and the second washer 235 , and the shaft hole of the rotating swing arm 230 is sleeved on the shaft pin 231 .
  • the upper end of the connecting rod assembly 240 is fixed on the end of the connecting rod installation part 237 away from the shaft pin 231, and the lower end of the connecting rod assembly 240 passes through the transmission member 251 and the adjusting plate.
  • the rotating shaft 250 is connected.
  • two joint bearings 270 are mounted on both ends of the connecting rod assembly 240.
  • the joint bearings 270 include a joint vertical section 271 and a joint horizontal section 272 connected to each other.
  • the joint vertical section 271 has an internally threaded hole, and the joint
  • the horizontal section 272 has an external thread; the two ends of the connecting rod assembly 240 are provided with a threaded section 241 that matches the internal threaded hole of the joint vertical section 271, and the two ends of the connecting rod assembly 240 are screwed into the two joints through the threaded section 241 respectively.
  • the joint vertical section 271 of the bearing 270 is inserted into the internally threaded hole, and is fastened by a third nut 274 .
  • the joint bearing 270 located at the upper end of the connecting rod assembly 240 is defined as the upper joint bearing
  • the joint bearing 270 located at the lower end of the connecting rod assembly 240 is defined as the lower joint bearing.
  • the joint horizontal section 272 of the upper joint bearing passes through the end of the connecting rod mounting part 237 away from the shaft pin 231, and is fixed by the second nut 273; the joint horizontal section 272 of the lower joint bearing passes through one end of the transmission member 251, and passes through the second Two nuts 273 are fixed.
  • other reasonable ways of connecting the joint bearing 270 to the connecting rod assembly 240 , the rotating swing arm 230 and the transmission member 251 can also be adopted.
  • an arc-shaped hole 222 can be provided on one side of the gear seat 220.
  • the second nut 273 connected with the joint horizontal section 272 of the upper joint bearing is movable, so that the connecting rod assembly 240 can be moved closer to the rotating swing arm 230 .
  • the rotating shaft 250 of the adjusting plate is passed through the pipe wall at the air outlet 151 of the blower frame 150, and the two ends of the rotating shaft 250 of the adjusting plate can pass through the second R pin 253 and the third washer 252 are limited on both sides of the air outlet 151 , and the adjusting plate rotation axis 250 is located in the middle of the air outlet 151 .
  • One end of the adjusting plate rotation shaft 250 is fixedly connected with one end of the transmission member 251, so that the adjustment plate rotation shaft 250 and the transmission member 251 can rotate synchronously, and the wind direction adjustment plate 260 can be fixed on the adjustment plate by the second bolt 261 and the first nut 262
  • the shaft section of the rotating shaft 250 located in the air outlet 151 that is, the wind direction adjusting plate 260 is located in the air outlet 151 .
  • the second torsion spring 280 is sheathed on the end of the rotating shaft 250 of the adjustment plate close to the transmission part 251, between the transmission part 251 and the second R pin 253, One end of the second torsion spring 280 is fixed on the transmission member 251 , and the other end of the second torsion spring 280 is fixed on the fixing portion 152 of the blower frame 150 .
  • the second torsion spring 280 will give a downward force to the rotating shaft 250 of the adjusting plate. Under the natural state, the rotating shaft 250 of the adjusting plate will have a turning tendency under the action of the second torsion spring 280, and this tendency will eliminate each connecting rod.
  • the connecting rod assembly 240 will drive the rotating swing arm 230 to have a clockwise rotation trend, and finally the rotating swing arm 230 will drive the adjustment handle 210 to have a forward movement trend, so that the ratchet of the adjustment handle 210 214 is stuck in the ratchet gear slot 223 of the gear seat 220 (Fig. 30-Fig. 32)
  • the adjustment handle 210 can have two kinds of movement states, forward and backward movement (corresponding to Fig. 32 and Fig. 33) and left-right movement (corresponding to Fig. 34-Fig. 37).
  • the action of the first torsion spring 290 makes the adjustment handle 210 move toward the slotting direction of the ratchet gear slot 223 of the gear seat 220, and the state of left and right movement is always subject to the leftward torque.
  • the ratchet 214 of the adjustment handle 210 needs to overcome the torsional swing of the first torsion spring 290 to break away from the ratchet gear slot 223.
  • the function of the second torsion spring 280 is to eliminate the movement gap between the multi-links, and at the same time, it shows the clockwise torque to the adjustment handle 210, and the ratchet 214 of the adjustment handle 210 and the position of the gear seat 220
  • the ratchet gear slots 223 form a ratchet meshing mechanism, allowing the adjusting handle 210 to move forward in a natural state. This forward moving force makes the ratchet 214 of the adjusting handle 210 firmly locked in the gear seat 220. The inside of the ratchet gear slot 223 will not move or loosen.
  • the operator When adjusting the wind direction angle of the blower 2000, the operator leans forward in the driving position of the mower 1000, and the arm can adjust the multi-angle wind direction of the blower 2000 by adjusting the handle 210.
  • the adjustment process is simple and convenient, and in the adjustment process The operator does not need to get off the mower 1000, saving manpower and time.
  • the embodiment of the present invention also introduces another wind direction adjustment mechanism of the hair dryer.
  • the wind direction adjustment mechanism of the hair dryer is
  • the manual wind direction adjustment mechanism of the hair dryer adopts a manual method to adjust the wind direction of the air outlet of the hair dryer 2000, including the first rotating air duct assembly 600 installed at the air outlet 151 of the hair dryer and the air outlet duct driving the first rotating air duct assembly 600
  • the rotating drive mechanism is a manual drive mechanism 300 .
  • the hair dryer 2000 includes a hair dryer assembly 100 and a hair dryer tuyere direction adjustment mechanism installed on the hair dryer assembly 100 .
  • the blower assembly 100 includes a blower frame 150, a motor assembly and a fan assembly accommodated in the blower frame 150, a handle 120 arranged above the blower frame 150, and a base 110 for supporting the entire blower assembly 100 arranged below the blower frame 150 1. Connect one side of the blower frame 150 with the second connecting piece 140 and the controller 130 of the mower 1000 .
  • the blower frame 150 includes a blower air outlet 151, and the blower air outlet 151 is arranged on one side of the blower frame 150, and the second connector 140 is arranged on the side of the blower frame 150 near the lawn machine (see Fig. 50 ), which can be connected through the second connection.
  • the member 140 installs the blower 2000 on the front end of the mower 1000 .
  • the first rotary air channel assembly 600 is installed at the air outlet 151 of the blower, and the first rotary air channel assembly 600 includes a first air inlet duct 610, a fixed duct 630 , the first rotating member 640 and the first air outlet duct 620 .
  • the first air inlet pipe 610 can be an elbow structure, for example, and the upper end of the first air inlet pipe 610 has a connecting flange, and the connecting flange of the first air inlet pipe 610 is connected to the blower air outlet 151 of the blower 2000 through the fastening assembly 650
  • the connecting flange at the place is fixedly connected to fix the upper end of the first air inlet pipe 610 to the blower outlet 151 of the blower 2000
  • the fastening assembly 650 includes a bolt 651 , a fourth washer 652 and a nut 653 .
  • the upper end of the first air inlet duct 610 and the blower outlet 151 of the blower 2000 may also be connected and fixed by means of rivets or welding.
  • the fixed pipe 630 has a cylindrical tubular structure as a whole, and the lower end of the fixed pipe 630 is outwardly formed with a bottom annular convex edge 631, when the first rotating member 640 is sleeved on the fixed On the outside of the pipe 630 , the bottom annular flange 631 is used to support the first rotating member 640 to prevent the first rotating member 640 from falling.
  • the upper end of the fixed pipe 630 can be connected and fixed with the lower end of the first air inlet pipe 610 through, for example, a throat clamp 660 , so as to facilitate disassembly.
  • the upper end of the fixed duct 630 may be connected and fixed to the lower end of the first air inlet duct 610 by, for example, bolts, nuts, fasteners or rivets.
  • a first connecting piece 632 is also provided on the pipe wall of the fixed pipe 630, and one end of the first connecting piece 632 is fixedly connected to the first rotating part of the fixed pipe 630.
  • the other end of the first connecting piece 632 can be fixedly connected to the top of the worm screw seat 360 through a bolt and nut assembly.
  • the first rotating member 640 is a rotating toothed plate, including a first toothed plate portion 641 at the upper end and a first connecting tube portion 642 at the lower end.
  • the first toothed part 641 is a disk-shaped structure, and the first toothed part 641 has a central opening through which the fixed pipe 630 passes, and the central opening of the first toothed part 641 communicates with the first connecting pipe part 642 .
  • the first rotating member 640 is sleeved on the lower end of the fixed pipe 630, and the lower end of the first rotating member 640 is overlapped on the bottom annular flange 631 to prevent the first rotating member 640 from falling, and the first rotating member 640 can be fixed around the Conduit 630 rotates.
  • a spiral oil channel 643 is opened on the inner wall of the first rotating member 640 , and the lubricating oil nipple 644 is installed on the outer wall of the first connecting pipe portion 642 of the first rotating member 640 Above, the lubricating oil nipple 644 communicates with the inner wall of the first rotating member 640, through which lubricating oil can be injected into the helical oil passage 643 of the first rotating member 640 to lubricate the space between the first rotating member 640 and the fixed pipe 630 relative rotation.
  • the outer diameter of the bottom annular flange 631 is larger than the inner diameter of the first connecting pipe portion 642 of the first rotating member 640 but smaller than the outer diameter of the first connecting pipe portion 642 .
  • the first air outlet pipe 620 can be, for example, an elbow structure.
  • the upper end of the first air outlet pipe 620 is sheathed on the lower end of the first connecting pipe portion 642 and can be connected and fixed by a throat clamp 660 to facilitate disassembly.
  • the upper end of the first air outlet pipe 620 and the lower end of the first connecting pipe portion 642 may also be connected and fixed by, for example, bolts, nuts, fasteners or rivets.
  • the manual drive mechanism 300 and the first rotary air duct assembly 600 are arranged on the same side of the blower 2000, and the manual drive mechanism 300 is located on the side of the first rotary air duct assembly 600. side.
  • the manual drive mechanism 300 includes a rotary handle 320 , a coupling and a worm 370 , and the rotary handle 320 is connected to the worm 370 through a coupling, wherein the coupling and the worm 370 serve as transmission parts for transmitting power or movement of the manual drive mechanism 300 .
  • the worm 370 is provided with a first active meshing part, and the first sprocket part 641 is provided with a first driven meshing part 645, and the worm 370 is arranged on one side of the first rotating member 640 to ensure the first active meshing of the worm 370
  • the part is engaged with the first driven engagement part 645 of the first rotating member 640 , and the rotation of the worm 370 drives the first rotating member 640 to rotate around the fixed pipe 630 .
  • the first driving engagement part of the worm 370 is a helical tooth
  • the first driven engagement part 645 of the first toothed disc part 641 is a tooth.
  • the worm 370 is directly engaged with the first rotating member 640 to transmit power or motion, but it can be understood that the power or motion can also be transmitted through the engagement between the worm 370 and the first rotating member 640 ,
  • the worm 370 and the intermediate piece form a transmission piece.
  • the coupling is a universal joint, including a connecting rod 350 and two cross-axis universal joints 340, the connecting rod 350 is, for example, a round rod, and the connecting rod 350 One end of the connecting rod 350 is connected with the lower end of the rotary handle 320 through a cross-axis universal joint 340, and can be fixed by a pin shaft. The shaft is fixed.
  • the rotary handle 320 performs a rotary motion under the action of the operator, driving the upper cross-axis universal joint 340 (defined as the upper cross-axis universal joint 340 ) to rotate, and the upper cross-axis universal joint drives the connecting rod 350 to rotate, and the connecting rod 350 drives the rotation of the lower cross-axis universal joint 340 (defined as the upper cross-axis universal joint 340), the lower cross-axis universal joint 340 drives the rotation of the worm 370, and the rotation of the worm 370 drives the rotation of the first rotating member 640.
  • the rotation of the first air outlet pipe 620 is driven, so as to achieve the purpose of adjusting the angle of the wind direction.
  • a handle cover 310 which is provided for the convenience of the user to hold.
  • the first toothed disc part 641 can only be provided with the first driven engagement part 645 in the partial circumferential direction, such a design can not only meet the needs of angle adjustment, but also It can play a position limiting function, which means that the first rotating member 640 will stop when it rotates to the position of the tooth edge, thereby limiting the continuous rotation of the first air outlet pipe 620 .
  • the first driven meshing part 645 that meshes with the first driving meshing part of the worm 370 may also be provided on the entire circumferential direction of the first toothed disc part 641 .
  • the manual driving mechanism 300 is installed on one side of the hair dryer 2000 through the fixing base 330, and one side of the fixing base 330 is sequentially provided with an upper mounting plate 331 and a lower mounting plate 331 from top to bottom.
  • the mounting plate 333, the upper mounting plate 331 and the lower mounting plate 333 are provided with coaxial mounting holes for the rotary handle 320 to pass through, and the lower end of the rotary handle 320 passes through the upper mounting plate 331 and the lower mounting plate of the fixed seat 330 in turn
  • the mounting hole of 333 is connected with one end of the universal coupling, and the side wall of the rotating handle 320 is provided with an annular locking protrusion 321, and the locking protrusion 321 overlaps the mounting hole of the upper mounting plate 331 .
  • the manual drive mechanism 300 also includes a compression spring 323 and a fifth washer 324 sleeved on the rotary handle 320, and the fifth washer 324 is fixed on the first pin shaft 322.
  • the compression spring 323 is arranged between the fifth washer 324 and the upper mounting plate 331 so that the compression spring 323 is in a compressed state, so that the compression spring 323 indirectly gives the rotary handle 320 a downward force through the fifth washer 324 , this force makes the locking protrusion 321 on the rotary handle 320 and the upper mounting plate 331 always have a pre-tightening force, and in a natural state, the rotary handle 320 will not shake or loosen.
  • the manual drive mechanism 300 also includes a sleeve 332, the sleeve 332 is a circular tube, the diameter of the sleeve 332 is greater than the outer diameter of the compression spring 323, the sleeve 332 Sleeved on the outside of the compression spring 323 , the sleeve 332 is located between the fifth washer 324 and the upper mounting plate 331 , and the upper end of the sleeve 332 is connected and fixed to the bottom of the upper mounting plate 331 .
  • the worm 370 is fixed on the worm seat 360, the worm seat 360 is fixed on one side of the blower frame 150 by bolts, and the worm seat 360 is located on the first rotating air duct assembly 600 Between the blower frame 150 , the upper end of the worm seat 360 is connected to the side wall of the fixed pipe 630 through the first connecting piece 632 .
  • the rotating handle 320 by controlling the rotating handle 320 to rotate clockwise, the first air outlet pipe 620 can be driven to rotate counterclockwise, otherwise the rotating handle 320 can drive the first air outlet The pipe 620 rotates clockwise, so as to achieve the purpose of adjusting the wind direction.
  • the rotary handle 320 rotates clockwise for one turn (360°), which can drive the worm 370 to rotate one turn, and drive the first air outlet pipe 620 to rotate counterclockwise by 4° (this angle can be determined according to the worm 370 and the first rotation
  • the transmission ratio between parts 640 is adjusted)
  • the rotary handle 320 rotates counterclockwise for one turn (360°), which can drive the worm 370 to rotate one turn, and drive the first air outlet pipe 620 to rotate clockwise by 4° (this angle can be adjusted according to the worm 370 and the transmission ratio between the first rotating member 640 to adjust).
  • the air outlet of the first air outlet duct 620 Relative to the 0° position in the figure, it can be adjusted steplessly within the angle range B of -45° ⁇ 135°.
  • the design of the tuyere direction adjustment mechanism of the hair dryer in this embodiment can realize stepless adjustment of the air direction of the tuyere of the hair dryer 2000.
  • a clip spring 323 is installed inside the rotary handle 320, and the clip spring 323 has a pre-tightening effect on the rotary handle 320. In a natural state, the rotary handle 320 will not shake or loosen, so that the whole set of adjustment mechanism is compact and reliable.
  • the blower 2000 is installed on the front end of the lawn mower 1000 through the second connecting member 140 disposed on one side thereof.
  • the rotary handle 320 of the blower tuyere direction adjustment mechanism is arranged at a suitable position on the top of the blower 2000 near the lawnmower 1000, so that the operator can manipulate the lawnmower 1000 when it is in the driving position.
  • the operator leans forward in the driving position of the lawn mower 1000 during the whole adjustment process, and the operator's arm can rotate the upper rotating handle 320 to drive the first air outlet pipe 620 to rotate to complete the adjustment process.
  • the angle of the wind direction is adjusted, and the adjustment process is simple and convenient, and the operator does not need to get off the mower 1000 during the adjustment process, which saves manpower and time.
  • the embodiment of the present invention also introduces another blower wind direction adjustment mechanism to realize the adjustment of the wind direction of the blower 2000.
  • the adjustment includes the second rotating air channel assembly 500 installed at the air outlet 151 of the blower and the driving mechanism for driving the air outlet pipe of the second rotating air channel assembly 500 to rotate, and the driving mechanism is a motor driving mechanism.
  • the hair dryer 2000 includes a hair dryer assembly 100 and a blower tuyere direction adjustment mechanism installed on the hair dryer assembly 100 .
  • the blower assembly 100 includes a blower frame 150, a motor assembly 180 housed in the blower frame 150 and a fan assembly 160, a handle 120 arranged above the blower frame 150, a handle 120 arranged below the blower frame 150 for supporting the entire blower assembly 100
  • the base 110 the second connecting piece 140 arranged on one side of the blower skeleton 150 for connecting with the lawnmower 1000 and the controller 130 arranged on the blower skeleton 150 .
  • the blower frame 150 includes a blower air outlet 151 and a connecting frame 156, a fixed frame 153, an air inlet cover 154 and a fan housing 155 arranged in sequence along the axial direction of the motor assembly 180; the motor assembly 180 is installed in the fixed frame 153, and the blower
  • the casing 155 is installed on one side of the fixed frame 153
  • the fan blade assembly 160 is installed on the output shaft of the motor assembly 180
  • the air inlet cover 154 is installed on the side of the fan casing 155 away from the fixed frame 153
  • the connecting frame 156 passes through
  • the bolts are mounted on the fixing frame 153
  • the second connecting piece 140 is arranged on the side of the connecting frame 156 away from the fixing frame 153
  • the blower 2000 can be installed on the front end of the lawnmower 1000 through the second connecting piece 140 .
  • the controller 130 is arranged on the top of the fixed frame 153
  • the controller cover 131 is arranged on the controller 130, the top surface and the side of the controller cover 131
  • the fan blade assembly 160 is an impeller including 6 blades
  • the air inlet area of the air inlet cover 154 can be, for example, 0.0288m 2
  • the motor assembly 180 can be, for example, a 1.5KW motor, Rated voltage 82V, working current 16.5A, continuous working system
  • the controller 130 is a 1.5KW controller, the maximum allowable current is 45A
  • the side of the connecting frame 156 away from the fixed frame 153 is installed with a square tube as the second connecting piece 140; the whole set
  • the main structure of Hair Dryer 2000 is designed to meet the waterproof level requirements of IPX4, with a maximum wind speed of 42m/s and a maximum air volume of 922CFM.
  • the second rotary air duct assembly 500 is installed at the air outlet 151 of the blower, and the second rotary air duct assembly 500 includes a second air inlet duct 510, a second rotary piece 540, a fixed tray 560, and a second air outlet duct 520.
  • the second air inlet pipe 510 can be an elbow structure, for example, and the upper end of the second air inlet pipe 510 has a connecting flange, and the connecting flange of the second air inlet pipe 510 is arranged on the blower frame 150 through the fastening assembly and the blower 2000
  • the connecting flange at the air outlet 151 of the blower on one side is fixedly connected, so that the upper end of the second air inlet pipe 510 is fixed on the air outlet 151 of the blower.
  • the fastening components may include bolts, washers and nuts, for example;
  • the lower end of the tuyere duct 510 is inserted into the second rotating member 540 and overlapped with the central hole of the second rotating member 540 .
  • the upper end of the second air inlet pipe 510 and the air outlet 151 of the blower may also be connected and fixed by means of rivets or welding.
  • the fixed tray 560 has a disc-shaped structure with a central opening 561 as a whole, one side of the fixed tray 560 is fixedly installed on the blower frame 150 of the hair dryer 2000, and the fixed tray 560 The central opening 561 is used for installing the second rotating member 540 .
  • the fixed tray 560 is provided with a gear opening 562, and the gear opening 562 is located on one side of the second rotating member 540.
  • the third drive motor 400 of the motor drive mechanism is installed on the side of the fixed tray 560 facing the air outlet pipe, and the motor drives The transmission gear 420 of the mechanism passes through the gear opening 562 and is arranged on one side of the rotating member.
  • the second rotating member 540 is a rotating toothed plate, including a second toothed plate portion 541 located at the upper end and a second connecting tube portion 542 located at the lower end.
  • the second toothed plate portion 541 is a disc-shaped structure, and the second toothed plate portion 541 has a central opening for inserting the lower end of the second air inlet pipe 510, and the central opening of the second toothed plate portion 541 communicates with the second connecting pipe portion 542 , the lower end of the second air inlet pipe 510 is inserted into the central opening of the second toothed disc part 541, and is overlapped with the central opening of the second toothed disc part 541 by the annular rib 511, wherein the annular rib 511 is arranged on the second toothed disc part 541.
  • the two air inlet ducts 510 are located on the outer wall near the lower end.
  • the second air outlet pipe 520 can be an elbow structure, for example, and the upper end of the second air outlet pipe 520 is sleeved on the second connecting pipe part of the second rotating member 540 542, and can be connected and fixed by bolts and nuts fasteners or rivets, that is, the lower end of the second rotating member 540 passes through the central opening 561 of the fixing tray 560 and is connected and fixed with the upper end of the second air outlet pipe 520, the second The rotating member 540 and the second air outlet pipe 520 are fixed to rotate together.
  • the upper end of the second air outlet pipe 520 and the lower end of the second connecting pipe portion 542 of the second rotating member 540 may also be connected and fixed by, for example, a throat clamp, so as to facilitate disassembly.
  • the second rotating air duct assembly 500 also includes a gear plate cover 530, where the gear plate cover 530 is covered and fixed on the fixed tray 560 and covers the second
  • the rotating member 540 and the transmission gear 420 can protect the second rotating member 540 and the transmission gear 420 .
  • the gear plate cover 530 can adopt the radially butt joint left gear plate cover 531 and the right gear plate cover 532, and the left gear plate cover 531 and the right gear plate cover 532 are respectively located at the second air inlet.
  • the upper ends of the left toothed case 531 and the right toothed case 532 are butted on the upper end of the annular rib 511, and the lower ends of the left toothed case 531 and the right case 532 of the toothed plate can be respectively passed through bolts.
  • the nut assembly is fixed on the fixing tray 560 .
  • the top surfaces of the left toothed shell 531 and the right toothed shell 532 are generally semi-circular structures, and the two can form a center suitable for the outer diameter of the corresponding position of the second air inlet duct 510 after they are docked. Opening, the diameter of the central opening needs to be smaller than the outer diameter of the annular rib 511 , which can prevent the second air inlet pipe 510 from slipping out of the sprocket housing 530 .
  • a sixth washer 550 can be provided between the second rotating member 540 and the fixed tray 560, The sixth washer 550 is sleeved on the second connecting pipe portion 542 of the second rotating member 540 and located between the second toothed plate portion 541 and the fixed tray 560 .
  • the sixth washer 550 may be a nylon washer, for example.
  • the motor driving mechanism includes a third driving motor 400, a transmission gear 420 and an adjustment switch 410, and the transmission gear 420 is arranged on the output shaft of the third driving motor 400, wherein, The transmission gear 420 serves as a transmission member for transmitting power or movement of the motor drive mechanism.
  • the transmission gear 420 is arranged on one side of the second rotating member 540 , and the second active meshing part of the driving gear 420 meshes with the second driven meshing part 543 of the second rotating part 540 , and the adjusting switch 410 is connected to the third driving motor 400 , the third driving motor 400 is controlled by the adjusting switch 410 to drive the transmission gear 420 to rotate, thereby driving the second rotating member 540 to rotate synchronously with the second air outlet pipe 520 to complete the adjustment of the direction of the air outlet of the hair dryer 2000.
  • the third driving motor 400 can be fixedly installed on the side of the fixing tray 560 facing the second air outlet duct 520 , for example, through a screw and nut assembly.
  • the transmission gear 420 is set on one side of the second rotating member 540 after passing through the gear opening 562 of the fixed tray 560, and the rotation of the third driving motor 400 drives the second rotating member 540 and the second air outlet pipe 520 to synchronously rotate around the second rotating member 540.
  • the air inlet duct 510 rotates.
  • the third drive motor 400 can be, for example, a worm motor with a rated voltage of 72V, a rated speed of 100r/min, and an output gear with 7 teeth;
  • the second rotating member 540 has 91 teeth and a transmission ratio of 1 :13, the rated speed is 7.7r/min;
  • the diameter of the second air outlet pipe 520 is 115mm, the area of the air outlet is 0.01m 2 , the angle of the air outlet is 20° downward, and the rated speed is 7.7r/min.
  • the transmission gear 420 is directly engaged with the second rotating member 540 to transmit power or movement, but it can be understood that in other embodiments, the transmission gear 420 and the second rotating member 540 can also be Power or movement is transmitted through the meshing of the middle piece, and the transmission gear 420 and the middle piece form a transmission piece.
  • the second driven meshing part 543 is arranged on the entire circumference of the second chainring part 541, and the second driving meshing part of the transmission gear 420 and the second toothing part
  • the second driven engagement part 543 of 541 may be teeth, for example.
  • the second rotating member 540 can also adopt the second driven engagement member 543 similar to the first rotating member 640 of Embodiment 1, that is, the second driven engagement member 543 can only be provided On the partial circumference of the second toothed disc part 541, such a design can not only meet the needs of angle adjustment, but also play a role of limit.
  • the air outlet duct 520 continues to rotate.
  • the adjustment switch 410 of the motor drive mechanism can be arranged at the corresponding position on the upper end of the blower frame 150 of the blower 2000. This position needs to ensure that the blower 2000 is installed on the front of the mower 1000. In the driving position of the machine 1000, the body is leaned forward, and it is advisable that the driver's arm can reach it.
  • the electrically driven regulating switch 410 is installed at the opening of the controller housing 131 .
  • Fig. 56 shows the electrical principle diagram of the hair dryer 2000 with the hair dryer tuyere direction adjustment mechanism of this embodiment.
  • the third drive motor 400 (worm motor) is connected to the battery pack through the adjustment switch 410, and the switch 410 can control the on-off of the third drive motor 400 and the battery pack 190 to provide power to the third drive motor 400.
  • the battery pack may be, for example, the power supply battery pack of the lawn mower 1000 .
  • the motor assembly 180 of the hair dryer 2000 is connected to the battery pack 190 through the controller 130, and the controller 130 is also communicatively connected with the hall sensor 170 carried by the motor assembly 180 of the hair dryer 2000, and the operation of the motor assembly 180 of the hair dryer 2000 is controlled by the controller 130 .
  • the adjustment switch 410 controls the rotation direction (forward rotation, reverse rotation and stop) of the third driving motor 400, the output steering of the third driving motor 400 has two kinds of steering, counterclockwise and clockwise, and the third driving motor 400 rotates clockwise with the second
  • the lower nozzle of the air outlet pipe 520 rotates counterclockwise in the horizontal direction; otherwise, the third driving motor 400 rotates counterclockwise to drive the lower nozzle of the second air outlet pipe 520 to rotate clockwise in the horizontal direction, thereby realizing the blower 2000.
  • the orientation of the air outlet can be adjusted freely within a 360°circumferential range.
  • the integral hair dryer 2000 of this embodiment is designed such that the tuyere can freely rotate 360° in the horizontal direction around the location, and the third driving motor 400 can be controlled by the adjustment switch 410 to realize forward and reverse rotation at any time.
  • the air inlet and outlet area ratio of the fan is 2.77. Please refer to Fig.
  • the blower 2000 can be installed on the front end of the lawnmower 1000 through the second connecting piece 140 mentioned above, the height h1 of the lowest point of the blower 2000 from the ground can be 120mm, for example; the outlet of the blower 2000 The height h2 of the lowest point of the tuyere (the lower nozzle of the second air outlet duct 520 ) from the ground can be, for example, 140mm, so that the lowest height of the air outlet of the blower 2000 (the lower nozzle of the second air outlet duct 520 ) is higher than that of the blower 2000
  • the lowest height (h2-h1) of the whole machine may be 20mm, for example. It can be understood that the sizes of h1 and h2 can be adjusted according to actual needs, and are not limited to the above data.
  • the structural design of the hair dryer 2000 in this embodiment can realize free adjustment of 360 degrees in the horizontal plane of the tuyere of the hair dryer 2000.
  • the blower 2000 is installed on the front end of the lawn mower 1000 through the second connecting member 140 disposed on one side thereof.
  • the adjustment switch 410 of the blower tuyere direction adjustment mechanism can be set at a suitable position on the upper end of the blower frame 150 of the blower 2000. This position needs to ensure that when the blower 2000 is installed on the front of the mower 1000, the operator can In the driving position of the lawn mower 1000, the body is leaned forward so that the driver's arm can reach it.
  • the operator When adjusting the direction of the air outlet of the blower 2000, the operator leans forward in the driving position of the mower 1000 during the entire adjustment process, and the driver's arm can touch the adjustment switch 410, thereby controlling the adjustment of any angle of the air outlet.
  • the adjustment process is simple It is convenient, and the operator does not need to get off the mower 1000 during the adjustment process, saving manpower and time.
  • the electrically driven regulating switch 410 is installed at the opening of the controller housing 131 .

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Abstract

一种割草机,包括车架(10);行走组件,包括连接于所述车架的第一行走轮组件(50)和第二行走轮组件(30);所述第一行走轮组件和/或所述第二行走轮组件包括主行走轮(31)及轮毂电机(32),所述主行走轮与所述轮毂电机连接,所述轮毂电机设置于所述车架的外部一侧;工作组件(40),与所述车架连接;座椅(60),设置于所述车架上;电池包(20),所述电池包下降安装于所述车架上并延伸到所述座椅的下方。该割草机采用轮毂电机驱动,通过对车架和电池包协同设计,扩大了电池包的安装空间,使整机中心更加合理。

Description

割草机 技术领域
本发明涉及割草机技术领域,特别涉及一种具有轮毂电机的割草机。
背景技术
目前的电驱动坐骑式割草机产品均采用驱动电机加齿轮箱的形式驱动行走,且电池包安装于车架尾部,并位于驱动电机的正上方,前端到座椅为止。这种结构设计存在诸多缺点,具体的,驱动电机及齿轮箱的尺寸和重量都很大,占用空间大,安装更换不便,并且,齿轮传动有一部分效率损失,噪音大,齿轮油需要定期保养更换,运输时还要放空齿轮油,造成不必要的浪费,另外,电池包安装于驱动电机的上方,安装位置偏后偏高,导致整机中心偏高偏后,不利于行驶稳定性和爬坡稳定性,且导致连接电池包的电源线束较长,增加了安全隐患。
目前的割草机是通过汽油发动机、电磁离合器、皮带和皮带轮传递动力到割刀上,从而旋转切割草坪。这种结构有以下缺陷:传统的燃油发动机排出的尾气会造成大量的空气污染;传统割草机的结构比较复杂,且零件价格、生产成本和后期维修更换的成本较为昂贵。
目前市场上大多数的吹风机吹风的方向是固定的无法调节;有的吹风机风向可以调节,但是需要人从草坪机上下来,在吹风机出风口处进行风向调节,操作不方便。
割草机通常采用防反充模块来消耗园林工具制动时产生的能量,以避免其对割草机造成损坏。目前,防反充模块包括反充电阻和控制模块,两者共同集成在同一个封闭的容器内,故散热困难且其安装位置在人体易接触的范围内。在园林工具运行过程中,会使得反充电阻不断升温,这会造成控制模块的元件损坏;并且由于整个防反充模块的散热缓慢,人体误碰或者触摸到整个防反充 模块的壳体时会造成不同程度的烫伤。
发明内容
鉴于以上所述现有技术的缺点,本发明的目的在于提供一种具有轮毂电机的割草机,用于解决现有技术中采用驱动电机加齿轮箱的驱动结构安装更换不方便、成本高昂、导致整机重心分配不合理、行驶稳定性和爬坡稳定性较差的技术问题。
为实现上述目的及其他相关目的,本发明提供一种割草机,包括:
车架;
行走组件,包括连接于所述车架的第一行走轮组件和第二行走轮组件;
所述第一行走轮组件和/或所述第二行走轮组件包括主行走轮及轮毂电机,所述主行走轮与所述轮毂电机连接,所述轮毂电机设置于所述车架的外部一侧;
工作组件,与所述车架连接;
座椅,设置于所述车架上;
电池包,所述电池包下降安装于所述车架上并延伸到所述座椅的下方。
在本发明的一可选实施例中,所述第一行走轮组件设置于所述车架的前端,所述第一行走轮组件包括前轮以及用于控制所述前轮转向的转向机构;所述第二行走轮组件设置于所述车架的尾端,所述第二行走轮组件包括所述主行走轮和所述轮毂电机。
在本发明的一可选实施例中,所述座椅设置于所述第一行走轮组件和所述第二行走轮组件之间,所述电池包下降安装于所述车架的尾部并延伸到所述座椅的下方。
在本发明的一可选实施例中,所述座椅设置于所述第一行走轮组件和所述第二行走轮组件之间,所述电池包下降安装于所述车架的尾部并延伸到所述座椅的下方。
在本发明的一可选实施例中,所述电池包的前端面与所述主行走轮的轮轴的纵向距离介于340mm-400mm之间。
在本发明的一可选实施例中,所述电池包的重心位置与所述主行走轮的轮轴的距离介于60mm-70mm之间。
在本发明的一可选实施例中,所述电池包重心位置距地面的高度介于400mm-500mm之间。
在本发明的一可选实施例中,所述轮毂电机的总长度介于250mm-310mm之间。
在本发明的一可选实施例中,所述工作组件包括:
割台;
驱动组件,所述驱动组件安装在所述割台的顶部,并与所述割台之间设置有通风口;
刀具组件,所述刀具组件安装在所述割台的底部,并与所述驱动组件的输出轴连接。
在本发明的一可选实施例中,所述割台上有安装孔,所述驱动组件安装在所述安装孔处,并部分从所述安装孔伸入所述割台的底部,并连接所述刀具组件。
在本发明的一可选实施例中,所述割草机还包括电阻组件,所述电阻组件安装于所述车架底部,所述电阻组件包括反充电组。
在本发明的一可选实施例中,所述行走组件包括设置于所述车架底部的第一行走轮组件和第二行走轮组件,所述电阻组件位于所述第一行走轮组件和所述第二行走轮组件之间。
在本发明的一可选实施例中,所述电阻组件还包括:
安装支架,通过所述安装支架将所述电阻组件安装于所述车架上;
散热件,安装于所述安装支架上;
以及
网孔板,安装于所述安装支架上;
所述反充电阻位于所述散热件和所述网孔板之间,所述网孔板的散热孔显露出所述反充电阻的远离所述散热件的一侧表面。
在本发明的一可选实施例中,所述网孔板设置于所述电阻组件的朝向所述割草机的前进方向的一侧。
在本发明的一可选实施例中,所述割草机包括控制模块,所述控制模块与所述电阻组件独立安装;所述控制模块与所述反充电阻连接,并且所述控制模块与所述反充电阻共同构成防反充模块。
在本发明的一可选实施例中,所述割草机还包括吹风机,所述吹风机安装至所述割草机的前端;所述吹风机包括:
吹风机骨架;以及
吹风机风向调节机构,设置于所述吹风机骨架上;
其中,所述吹风机风向调节机构包括:
档位座,安装于吹风机骨架上,其中,所述吹风机骨架具有出风口;
旋转摆臂,转动安装于所述档位座上;
调节手柄,所述调节手柄的一端枢设于所述旋转摆臂;
连杆组件,所述连杆组件的一端与所述旋转摆臂连接;
调节板旋转轴,设置于所述出风口处,所述调节板旋转轴通过传动件与所述连杆组件的另一端连接;以及
风向调节板,位于所述出风口内,所述风向调节板固定连接于所述调节板旋转轴上,所述风向调节板随所述调节板旋转轴同步转动。
在本发明的一可选实施例中,所述调节手柄包括握持部和枢轴安装部,所述枢轴安装部设置于所述握持部一端,所述吹风机风向调节机构还包括第一扭簧,所述第一扭簧套设于所述枢轴安装部上,所述第一扭簧的一端连接于所述握持部,另一端连接于所述旋转摆臂上。
在本发明的一可选实施例中,所述吹风机风向调节机构还包括第二扭簧,所述第二扭簧套设于所述调节板旋转轴上,所述第二扭簧的一端连接于所述传动件上,另一端连接于所述吹风机骨架上。
在本发明的一可选实施例中,所述吹风机风向调节机构还包括两个关节轴承,所述连杆组件的一端通过所述关节轴承与所述旋转摆臂连接,所述连杆组 件的另一端通过所述关节轴承与所述传动件的一端连接,所述传动件的另一端与所述调节板旋转轴连接。
在本发明的一可选实施例中,所述割草机还包括吹风机,所述吹风机与所述草坪机连接;
所述吹风机包括:
吹风机总成;以及
调节机构,设置于所述吹风机总成上,所述调节机构包括:
旋转风道总成,连接于所述吹风机的出风口;
驱动机构,所述驱动机构与所述旋转风道总成传动连接,所述驱动机构具有操作部件;
其中,所述操作部件的设置位置为操作者处于所述草坪机的驾驶位置上时能够操控的位置,通过所述操作部件控制所述驱动机构工作,从而带动所述旋转风道总成转动。
本发明的割草机,轮毂电机相比电机齿轮箱方案节省1/3-1/2成本。
本发明的割草机,轮毂电机总长度比驱动电机加齿轮箱更短,重量更轻,减小了后轴质量,整机稳定性更好。
本发明的割草机,相比电机齿轮箱方案,轮毂电机的主体部分安装于轮辋内,整体位于车架外部,电池包的安装空间更大,电池包重心位置更低且更靠近后轴,从而使整机的重心分配更合理,爬坡稳定性大大增加。
本发明的割草机,轮毂电机直接驱动车轮,效率高无任何传动损失,无需齿轮油,无需维护,方便运输。
本发明的割草机,轮毂电机完全安装于车架外侧,电机外转子随车轮转动,散热性能有显著的提升。
本发明的割草机,通过在驱动组件和割台之间设置通风口,随着刀具的转动,电机周围的空气流动也随之加快,电机散发出来的热量经过所述通风口被吸收到割台腔体里,随着刀具的转动被排出,这样就提高电机的散热效果。另外还在刀片安装座上设计了叶片,可以跟着刀片一起旋转,同样能够为电机散 热,提高了本实用新型中割草机的散热效果。
本发明的割草机,将反充电阻从防反充模块中独立出来安装,以将反充电阻和控制模块分开,以此保护控制模块不被反充电阻的高温损坏,延长控制模块的寿命。
本发明的割草机的多连杆调节机构设计的吹风机风向调节机构,能够实现对吹风机风口风向的多角度调节,而且吹风机的安装位置位于草坪机的前部,整个调节过程操作者在草坪机上的驾驶位置上身体前倾,驾驶者的手臂即可通过调节手柄,进行风向角度的调节,简单方便,节省人力和时间。
本发明的割草机,采用旋转风道总成和驱动机构构成的吹风机风向调节机构,能够实现吹风机风口方向的无极调节,而且吹风机的安装位置位于草坪机的前部,整个调节过程操作者在草坪机上的驾驶位置上身体前倾,驾驶者的手臂即可通过旋转上旋转手柄,带动出风口旋转,进行风向的角度调节即可快速完成,简单方便,节省人力和时间。
附图说明
图1显示为本发明的园林工具的结构示意图。
图2显示为本发明的园林工具的过后轮轴距中垂面的半剖图。
图3显示为沿图2中A-A方向的剖面图。
图4显示为本发明的轮毂电机的主视图。
图5显示为本发明的轮毂电机的左视图。
图6显示为沿图5中B-B方向的剖面图本发明的轮毂电机的左视图。
图7显示为本发明于一实施例中割草组件的整体结构示意图。
图8显示为本发明于一实施例中割草组件的另一角度的整体结构示意图。
图9显示为本发明于一实施例中割台的结构示意图。
图10显示为本发明于一实施例中割台的另一角度结构示意图。
图11显示为本发明于一实施例中驱动组件与刀具组件的剖视结构示意图。
图12显示为图8中A处的放大示意图。
图13显示为图11中B处的放大示意图。
图14显示为本发明于一实施例中驱动组件与刀具组件的装配结构示意图。
图15显示为本发明于一实施例中驱动组件与刀具组件的爆炸结构示意图。
图16显示为本发明于一实施例中的下端盖结构示意图。
图17显示为本发明于一实施例中的下端盖主视图。
图18显示为本发明于一实施例中的下端盖剖面结构示意图。
图19显示为本发明于一实施例中刀具组件拆装示意图。
图20显示为本发明于一实施例中割草机的结构示意图。
图21显示为本发明的具有电阻组件的割草机的主视图。
图22显示为本发明的具有电阻组件的割草机的俯视图。
图23显示为本发明的电阻组件的结构示意图。
图24显示为本发明的电阻组件的爆炸图。
图25显示为流动气流与电阻组件的相对运动示意图。
图26显示为电阻组件在流动气流作用下的散热示意图。
图27显示为本实用新型的具有吹风机风向调节机构的吹风机的立体结构示意图。
图28显示为本实用新型的具有吹风机风向调节机构的吹风机的爆炸示意图。
图29显示为本实用新型的具有吹风机风向调节机构的吹风机的右视图。
图30显示为本实用新型的具有吹风机风向调节机构的吹风机的主视图。
图31显示为图30中的虚线圆圈所示区域的局部放大图。
图32显示为本实用新型的具有吹风机风向调节机构的吹风机的俯视图。
图33显示为图32中的圆圈所示区域的局部放大图。
图34显示为本实用新型的具有吹风机风向调节机构的吹风机在调节手柄克服第一扭簧扭力摆动,脱离棘齿后的主视图。
图35显示为图34中的虚线圆圈所示区域的局部放大图。
图36显示为本实用新型的具有吹风机风向调节机构的吹风机在调节手柄 克服第一扭簧扭力摆动,脱离棘齿后的俯视图。
图37显示为图36中的虚线圆圈所示区域的局部放大图。
图38显示为本实用新型的具有吹风机风向调节机构的吹风机在调节手柄向前摆动时的右视图。
图39显示为本实用新型的具有吹风机风向调节机构的吹风机在调节手柄向前摆动时的主视图。
图40显示为本实用新型的具有吹风机风向调节机构的吹风机在调节手柄向后摆动时的右视图。
图41显示为本实用新型的具有吹风机风向调节机构的吹风机在调节手柄向后摆动时的主视图。
图42显示为本实用新型的具有吹风机风向调节机构的吹风机安装于草坪机前端的结构示意图。
图43显示为本实用新型的具有第二种吹风机风口方向调节机构的吹风机的立体结构示意图。
图44显示为本实用新型的第二种吹风机风口方向调节机构的旋转风道总成的立体结构示意图。
图45显示为本实用新型的第二种吹风机风口方向调节机构的旋转风道总成的爆炸示意图。
图46显示为本实用新型的第二种吹风机风口方向调节机构的手动驱动机构的立体结构示意图。
图47显示为本实用新型的第二种吹风机风口方向调节机构的手动驱动机构的爆炸示意图。
图48显示为本实用新型的具有第二种吹风机风口方向调节机构的吹风机的风口方向调节示意图。
图49显示为本实用新型的具有第二种吹风机风口方向调节机构的吹风机出风口旋转角度的示意图。
图50显示为本实用新型的具有第二种吹风机风口方向调节机构的吹风机 安装于草坪机前端的结构示意图。
图51显示为本实用新型的具有第三种吹风机风口方向调节机构的吹风机的立体结构示意图。
图52显示为本实用新型的具有第三种吹风机风口方向调节机构的吹风机的爆炸图。
图53显示为本实用新型的第三种吹风机风口方向调节机构的立体结构示意图。
图54显示为本实用新型的第三种吹风机风口方向调节机构的爆炸图。
图55显示为本实用新型的第三种吹风机风口方向调节机构的蜗杆电机的结构示意图。
图56显示为本实用新型的具有第三种吹风机风口方向调节机构的吹风机的电气原理图。
图57显示为本实用新型的具有第三种吹风机风口方向调节机构的吹风机安装于草坪机前端的结构示意图。
具体实施方式
以下通过特定的具体实例说明本发明的实施方式,本领域技术人员可由本说明书所揭露的内容轻易地了解本发明的其他优点与功效。本发明还可以通过另外不同的具体实施方式加以实施或应用,本说明书中的各项细节也可以基于不同观点与应用,在没有背离本发明的精神下进行各种修饰或改变。
需要说明的是,本实施例中所提供的图示仅以示意方式说明本发明的基本构想,遂图式中仅显示与本发明中有关的组件而非按照实际实施时的组件数目、形状及尺寸绘制,其实际实施时各组件的型态、数量及比例可为一种随意的改变,且其组件布局型态也可能更为复杂。
如图1-6所示,本发明的实施例介绍一种采用轮毂电机32驱动的割草机。该割草机包括车架10,设于车架10上的座椅60、操纵组件90、行走组件、割草组件40、电池包20及电控箱80。
下面将结合附图来具体说明本发明的技术方案。
请参阅图1-3,在本实施例中,座椅60设置于车架10的上方中部位置,用于操作人员乘坐。操纵组件90设置于操作人员便于操作的位置,例如座椅60的两侧,其用于控制割草机。电控箱80设置于车架10上且位于座椅60的下方,电控箱80与割草组件40(作为工作组件)、行走组件的后轮组件30连接,电控箱80用于控制割草组件40、行走组件的工作状态。
请参阅图1-3,在本实施例中,行走组件用于割草机的移动,其包括设置于车架10底部前端的一对前轮组件50(第一行走轮组件)和设置于车架10底部靠后位置的一对后轮组件30(第二行走轮组件)。前轮组件50作为从动轮组件,其包括转动连接于车架10底部前端的前轮以及用于控制前轮转向的转向机构,前轮例如可为万向轮。作为示例,前轮可为光面万向轮,以有效避免前轮在转动时对工作地面的影响。
请参阅图1-3,在本实施例中,车架10上还设置有防翻滚组件70,防翻滚组件70设于座椅60后侧防止操作者跌落,在操作过程中,防翻滚组件70降低了因为意外翻车对操作者造成的伤害,极大的保障了操作者的人身安全。
请参阅图1-3,在本实施例中,后轮组件30作为主动轮组件,其包括轮毂电机32和后轮31(作为主行走轮),轮毂电机32的主体部分通过法兰螺栓3209(见图6)安装于后轮31的轮辋内,整体位于车架10的外部,后轮31通过轮毂电机32直接驱动。通过两个轮毂电机32可分别控制两个后轮31的行进差速运动,可有效增大后轮31的转向角度,使得后轮组件30的转向半径无限趋近于零,进一步提升割草机的实用性及使用性能。
请参阅图1-6,在本实施例中,轮毂电机32安装于车架10外部,靠后文将要介绍的固定螺栓3206和锁紧螺母3205与车架10固定连接,安装拆卸都很方便。轮毂电机32包括电机定子轴3202、电机外转子3201、第一外端盖3203、第二外端盖3204、碟刹3208及固定支架3207。电机定子轴3202固定不动,与车架10固定在一起,位于电机外转子3201的中心,电机定子轴3202的轴向长度大于电机外转子3201的轴向长度,电机定子轴3202的一端由第二外端盖 3204的中心伸出,并穿过车架10后通过锁紧螺母3205与车架10固定连接。
请参阅图1-6,在本实施例中,电机外转子3201、第一外端盖3203、第二外端盖3204组成收容空腔,其中,第一外端盖3203通过一轴承(未标示)支撑在电机定子轴3202的一端,第二外端盖3204通过另一轴承(未标示)支撑在电机定子轴3202的中部,电机外转子3201的两侧分别通过螺栓与第一外端盖3203和第二外端盖3204固定连接,因此,电机外转子3201、第一外端盖3203和第二外端盖3204可相对于电机定子轴3202共同转动。
请参阅图1-6,在本实施例中,固定支架3207设置于第二外端盖3204的远离第一外端盖3203的一侧,并与轴套32021固定连接,轴套32021套设于电机定子轴3202的伸出第二外端盖3204部分上,固定支架3207环绕轴套32021设置,固定支架3207的远离第二外端盖3204的一端与车架10通过固定螺栓3206紧固连接。作为示例,固定支架3207与轴套32021之间例如可采用焊接的方式连接。作为示例,固定螺栓3206的个数例如可以为四个。
请参阅图1-6,在本实施例中,碟刹3208包括刹车盘32081及刹车钳32082,刹车盘32081设置于第二外端盖3204与车架10之间,刹车盘32081套设于轴套32021或电机定子轴3202上,并与第二外端盖3204通过螺栓固定,刹车钳32082固定连接于固定支架3207上并设置于刹车盘32081边缘位置。刹车时,高压刹车油推动刹车钳32082的制动块使之夹紧刹车盘32081从而产生致动效果。
需要说明的是,相比现有的驱动电机加齿轮箱的驱动方案来说,轮毂电机32完全安装于车架10外部,靠固定螺栓3206和锁紧螺母3205与车架10连接,安装拆卸都简单方便;轮毂电机32直接驱动车轮,效率高且基本无任何传动损失,传动更加高效,并且无需齿轮油,无需维护,方便运输;轮毂电机32相比现有的驱动电机加齿轮箱的驱动方案可节省了1/3-1/2的成本,成本更低;轮毂电机的总长度D介于250mm-310mm之间,譬如280mm,轮毂电机的重量介于42kg-52kg之间,譬如47kg,轮毂电机32的总长度D相比驱动桥(驱动电机加齿轮箱)的总长度更短,重量可以减轻1/3左右,质量更轻,减少了后轴 质量,整机稳定性更好;由于轮毂电机32完全安装于车架10外侧,轮毂电机32工作时随着车轮转动,散热能力远超安装于车架10内部的驱动电机加齿轮箱的驱动方案。
请参阅图1-3,在本实施例中,由于割草机使用两个轮毂电机32直接驱动后轮31,轮毂电机32的主体部分安装于轮辋(也称为轮圈)内,并且轮毂电机32可完全安装于车架10的外部。
请参阅图1-3,在本实施例中,将所述电池包20设置为偏平长条状,可以增加电池包20的容积,电池包20下降安装于车架10内部并延伸到座椅60正下方,电池包20前端面距离后轮31的轮轴横切面纵向距离L5介于340mm-400mm之间,譬如370mm;电池包20重心位置距后轴距离C介于60mm-70mm之间,譬如65mm;电池包20重心位置距地面高度H6介于400mm-500mm之间,譬如450mm。
通过改动车架10结构增加电池包20安装空间,使得电池包20重心向前移,电池包20重心下降,这样靠近整机重心位置距离地面的高度大大的降低而且更加靠近后轮31轴心,整机重心向最优位置(也即前后轴距的一半位置),增加了整机的行驶稳定性和爬坡稳定性。另外电池包20由于采用偏平长条状,可以增加上下两个表面的表面积,电池包20的散热能力也得到了提高。
请参阅图1-3,在本实施例中,电池包20的部分延伸安装于座椅60的下方,故电池包20可前端出线,电源线束81一端与电池包20的前端连接,另一端与电控箱80连接,电源线束81的走向如图2所示,可以极大缩短电源线束81的长度,提高安全性。
本实施例的采用轮毂电机32驱动的割草机相比规格尺寸基本相同的采用驱动电机加齿轮箱的割草机,通过改动车架10结构增加电池包20安装空间,电池包20安装面距地面距离的H4约为330mm,电池包20可安装空间为L4(860mm)*W1(710mm)*H5(240mm),电池包20长度增加了40%,容量提升了1/3,电池包20前端面距离后轮31的轮轴横切面的纵向距离L5约为370mm左右,L3为后悬长度不变,电池包20重心位置距后轴距离C约为65mm, 电池包20重心位置距地面的高度H6约为450mm,电池包20重心向前移动了135mm,同时电池包20重心下降了170mm,受此影响,整机重心向最优位置(即前后轴距的一半位置)靠近了50mm,整机重心高度由此降低了40mm左右,爬坡稳定性大大增加。
本实施例的采用轮毂电机32驱动的割草机,轮毂电机32总长度D约为280mm,重量约为47kg,相比规格尺寸基本相同的采用驱动电机加齿轮箱的割草机的驱动桥短40%,重量轻1/3左右,减小了后轴质量,整机稳定性更好。
本实施例的采用轮毂电机32驱动的割草机相比规格尺寸基本相同的采用驱动电机加齿轮箱的割草机,由于采用电池包20前端出线,电源线束81一端与电池包20的前端连接,另一端与电控箱80连接,电源线束81的走向变更为如图2所示,电源线束81的长度缩短400mm左右,提高了安全性。
虽然本实施例的割草机是采用轮毂电机32驱动的后轮作为主行走轮,但可以理解的是,在其他实施例中,割草机也可采用轮毂电机32驱动的前轮作为主行走轮,将电池包20下降安装于车架10的前部并延伸到座椅60的下方。
虽然本实施例是以割草机为例来进行说明,但可以理解的是,本实施例的具有轮毂电机32的割草机的设计思路也可应用于其他的园林工具,作为具有轮毂电机32的园林工具,园林工具的车架10与电池包20可参照上述相似的设计,园林工具的工作组件的具体类型可根据实际需要进行选择。
为解决传统的使用燃油发动机的割草机造成的环境污染和结构复杂的问题,在本实施例中,如图7至图20所示,割草机包括割草组件40,割草组件40包括割台41、驱动组件42和刀具组件43,其中,驱动组件42和刀具组件43安装在割台41上,且刀具组件43和驱动组件42的输出轴4201固定连接,驱动组件42中的第二驱动电机4205开始转动,从而带动刀具组件43转动以切削草坪,割台安装在割草机的机架10的底部。
如图7至图10所示,在本实施例中,割台41的顶部向下凹陷形成电机安装槽4101,电机安装槽4101的底部设置有安装孔4102,驱动组件42安装在电机安装槽4101内,且驱动组件42的输出轴4201从安装孔4102内伸入至割台 41的底部,以和刀具组件43连接,从而驱动刀具组件43,需要说明的是,在本实施例中,割台41的底部形成有一刀具容纳腔44,刀具组件43位于刀具容纳腔44内,并和驱动组件42的输出轴4201固定连接,另外,割台41的底部四周设置有挡板45,且挡板45的高度要高于刀具组件43的高度,即刀具组件43与割台41的距离小于挡板45下端与割台41的距离,以使得刀具组件43被挡板45和割台41组合形成的容纳腔101内,以避免刀具组件43暴露在外面,工作时对操作人员造成伤害,且由于挡板45的存在,能够避免被切割下来的草料四溅,避免为后续清理带来不便。
如图11至图14所示,在本实施例中,驱动组件42与割台41之间留有间隙,以形成通风孔4103,以使得空气流动更加顺畅,能够及时补充刀具容纳腔44内的空气,使得排草更加顺畅。具体的,在本实施例中,驱动组件42包括输出轴4201和第二驱动电机4205,且第二驱动电机4205的底部包括一下端盖4206。在本实施例中,下端盖4206安装在割台41的电机安装槽4101内,并部分位于安装孔4102内,第二驱动电机4205安装在下端盖4206上,并通过螺栓固定连接,且输出轴4201的一端与第二驱动电机4205连接,另一端从下端盖4206中间的通孔内伸出,并延伸至刀具容纳腔44内,以和刀具组件43固定连接,下端盖4206与割台41之间设置有通风孔4103,以使空气可以沿着割台41的表面进入割台41的刀具容纳腔44内,保证了排草风量不受影响,同时使得第二驱动电机4205散发出来的热量被吸收到割台41的刀具容纳腔44里,随着刀具组件20的转动被排出,以提高第二驱动电机4205的散热效果。
如图11、图13、图16至图18所示,在本实施例中,下端盖4206包括主体部分4207、凸台部分4208和隔板4209,主体部分4207和凸台部分4208固定连接,且同轴设置,隔板4209间隔分布在凸台部分4208的四周,并和主体部分4207以及凸台部分4208固定连接,下端盖4206为类似圆环结构,即下端盖4206的中间设置有通孔,输出轴4201从通孔内伸出并连接刀具组件43。在本实施例中,主体部分4207、凸台部分4208和隔板4209一体成型。
如图11、图13、图16至图18所示,在本实施例中,凸台部分4208位于 安装孔4102内,且凸台部分4208的直径小于安装孔4102的直径,主体部分4207位于电机安装槽4101内,并且主体部分4207与驱动组件42的第二驱动电机4205固定连接,且主体部分4207的直径大于安装孔4102的直径。
如图11、图13、图16至图18所示,在本实施例中,隔板4209包括第一隔板42091和第二隔板42092,第一隔板42091和第二隔板42092将下端盖4206与割台41隔开并形成间隙,间隙为通风口4103,具体的,第一隔板42091设置在凸台部分4208的外表面上,第一隔板42091的外轮廓为圆形,与安装孔4102相匹配安装,由于凸台部分4208的直径小于安装孔4102的直径,以及第一隔板42091的作用,将凸台部分4208与割台41相互隔开形成间隙,第二隔板42092位于主体部分4207的底部,并与电机安装槽4101的底部接触安装,以将割台41与主体部分4207相互隔开形成间隙,主体部分4207和凸台部分4208与割台41之间的间隙形成通风口4103。
如图7、图8、图9及图15所示,在本实施例中,在割台41上设置有排草口46,并位于割台41的一侧,且排草口46处安装有排草罩47,当刀具组件43开启旋转时,割台41的刀具容纳腔44内的空气随着刀具组件43的旋转被从割台41右侧的排草口46排出,割台41下沿四周补充的空气没有排出的空气速度快时,割台41的刀具容纳腔44内会形成负压状态,此时如果不及时补充空气,切割下来的碎草会把割台41的刀具容纳腔44堵死,为了不降低排草风量,使排草更顺畅,通过在驱动组件42的下端盖4206与割台41之间设置通风口,使空气可以沿着割台41的表面进入割台41的刀具容纳腔44内,保证了排草风量不受影响,以顺利排草。另外,空气流动也会使得第二驱动电机4205周围的空气流动也随之加快,第二驱动电机4205散发出来的热量被吸收到割台41的刀具容纳腔44内,随着刀具组件43的转动被排出,从而提高电机的散热效果。
如图12、图14及图15所示,在本实施例中,刀具组件43包括刀片安装座4301和刀片4302,将刀片4302安装在刀片安装座4301的底部,并将螺栓4303依次穿过刀片4302和刀片安装座4301并与输出轴4201之间通过螺纹连 接,以将刀片4302和刀片安装座4301压紧固定在输出轴4201上,且在螺栓4303和刀片4302之间设置有碟簧4304。还需要说明的是,在本实施例中,刀片安装座4301的底部和刀片4302之间设置有止转结构,即在刀片安装座4301的底部设置有异形凸起结构43011,刀片4302上设置有与异形凸起结构43011相匹配的开口43021,以防止刀片4302与刀片安装座4301之间发生转动,从而影响割草效率。在一些其他实施例中,刀片安装座4301与输出轴4201固定连接,刀片4302通过螺栓4303与刀片安装座4301连接或采用其他的安装方法。
如图12、图14及图15所示,另外,在本实施例中,刀片安装座4301靠近远离刀片4302的一侧上设置有多个叶片4305,刀具组件43旋转时,叶片4305也一同旋转,也能够为第二驱动电机4205进行散热,进一步提高了该割草机的散热效果。另外,在本实施例中,采用的是双刀具结构,即该割草机上装配有两个刀具组件43,并分别配置有一个驱动组件42,且刀片4302的尖端距离地面的距离为1英寸至2英寸之间,以提高割草的效果。另外,还需要说明的是,如图12所示,在本实施例中,下端盖4206的底部,即靠近刀具组件43的一面上设置刀片装卸孔4306,利用固定工具48与刀片装卸孔4306连接,并且再通过一拆装工具49与螺栓4303连接,转动拆装工具49,使得螺栓4303一起转动以进行拆卸或安装,并由于固定工具48的作用以限制刀片4302的转动,防止刀片4302随着拆装工具49的转动而转动,从而实现刀具的装卸或更换,使其拆装过程更加省力,便于进行装卸和更换刀具。
如图11至图13所示,由于割草工作时,草坪上有露水,通常情况下在割草时会形成水雾,容易渗进割草机的第二驱动电机4205,从而降低了第二驱动电机4205的使用寿命。为了避免水雾进入驱动电机10内,通过设置油封结构4203和挡板213以达到减少水雾进入第二驱动电机4205的目的,具体的,在本实施例中,输出轴4201上套设有轴承4202和油封结构4203,轴承4202和油封结构4203均位于下端盖4206的通孔内,且油封结构4203位于轴承4202的下方,以避免割草时水进入割草机内,在本实施例中,挡板213与下端盖4206一体成型,即挡板213是下端盖4206的一部分,当然,在一些其他实施例中, 挡板213也可以设置为单独的一个部件,并与下端盖4206上通孔的内部连接在一起。另外,在下端盖4206的通孔内还设置挡板213,挡板213围绕着输出轴4201布置,挡板213位于油封结构4203的下方,且挡板213与输出轴4201之间留有较小的间隙,且由于刀片安装座4301也与输出轴4201固定连接,且部分位于通孔231内,且刀片安装座4301与下端盖4206的通孔的内表面之间同样留有较小的间隙,当割草机工作时,露水经过刀片安装座4301与下端盖4206之间的间隙进入下端盖4206的通孔内,由于挡板213与该通孔内部之间没有间隙,露水只能从原路流出或沿朝向输出轴4201的方向流动,再经过挡板213与输出21之间的间隙向上移动,再次由于油封结构4203的作用,使得露水只能原路返回,即下端盖4206、挡板213、输出轴4201和油封结构4203的相互配合使其之间的间隙形成一个迷宫回路,以进一步避免水雾进入第二驱动电机4205内,确保了割草机的使用寿命。
在本实施例中,通过在驱动组件和割台之间设置通风口,随着刀具的转动,电机周围的空气流动也随之加快,电机散发出来的热量经过通风口被吸收到割台腔体里,随着刀具的转动被排出,这样就提高电机的散热效果。另外还在刀片安装座上设计了叶片,可以跟着刀片一起旋转,同样能够为电机散热,进一步提高了本发明中割草机的散热效果。另外,该通风口的设置还保证了割草机的排草风量不受影响,以实现顺利排草的目的。
在本实施例中,通过设置油封结构,并且在油封结构下面的下端盖内增加了法兰盘,使得驱动电机的输出轴与下端盖内的法兰盘之间保留较小的间隙,再使刀片安装座与下端盖的法兰盘之间保留较小的间隙,形成一个迷宫回路,再加上油封结构的阻隔,以最大限度降低水汽进入驱动电机的内部,确保了割草电机的使用寿命。
为了解决现有割草机中的防反充模块的反充电阻102和控制模块集成在同一个封闭的容器内而容易造成控制模块的元件损坏以及布置位置不合理而容易发生烫伤的问题,如图21和22所示,本发明还介绍一种具有电阻组件1的割草机1000。当然,本发明的电阻组件1的设置方式也可应用于骑乘式清洗机、 骑乘式吸尘器或其他园林工具中。
为了便于描述,定义割草机的长度方向为前后方向(如图21所示),定义割草机的宽度方向为左右方向(如图22所示)。
如图21和22所示,在本实施例中,前轮组件50可作为从动轮组件,其包括转动连接于车架10底部前端的前轮以及转向机构,转向机构用于控制前轮转向。后轮组件30’可作为主动轮组件,其包括安装于车架10后端的驱动桥32’和与驱动桥32’连接的后轮31。
如图21和22所示,割草组件40安装于车架10底部,并且位于前轮组件50和后轮组件30’之间。电控箱与割草组件40、行走组件的后轮组件30’连接,电控箱用于控制割草组件40及行走组件的工作状态。
图23显示为电阻组件1的结构示意图;图24显示为电阻组件1的爆炸图。
如图21-图24所示,电阻组件1安装固定于车架10的底部,电阻组件1包括反充电阻102、散热件101、安装支架103及网孔板104。散热件101固定安装于安装支架103的一侧,反充电阻102安装于散热件101的朝向安装支架103的一侧,网孔板104安装于安装支架103的远离散热件101的一侧,反充电阻102位于散热件101和网孔板104之间,网孔板104的散热孔显露出反充电阻102的远离散热件101的一侧表面。
下面将以电阻组件1安装于割草机1000上的实际位置来描述电阻组件1的结构。
如图23及图24所示,散热件101可为矩形板状结构,为了增加散热面积,在散热件101的背面设置有散热筋。当然,散热件101的形状可根据实际需要进行灵活调整,例如也可以是圆形板状结构、椭圆形板状结构、梯形板状结构等。
如图23及图24所示,散热件101固定安装于反充电阻102的后侧,为了能够及时将反充电阻102产生的热量散发到空气中,在反充电阻102与散热件101之间还填充有导热胶以实现两者的粘接。作为示例,反充电阻102与散热件101之间可通过内六角螺栓107及防松螺母108固定。
如图23及图24所示,安装支架103设置于散热件101的未设置散热筋的一侧。安装支架103包括第一安装部1031、第二安装部1032及第三安装部1033。
如图23及图24所示,第一安装部1031设置于安装支架103的顶部的两端,第一安装部1031为水平设置的平板,第一安装部1031用于将电阻组件1安装于车架10上。具体地,第一安装部1031上设置有第二安装孔1034,可借用割草组件40的调高机构的两个螺栓将电阻组件1固定在驱动桥32’和割草组件40的割台中间位置。
如图23及图24所示,第二安装部1032设置于安装支架103的底部的两端,第二安装部1032为在垂直方向延伸的条形板,第二安装部1032平行于散热件101设置,第二安装部1032上设置有第一簧片螺母105a。在散热件101的左右两端设置有通孔,作为第一安装孔1011,第一组合螺栓106a穿过第一安装孔1011和第一簧片螺母105a,以将散热件101固定安装于第二安装部1032上。需要说明的是,第一组合螺栓106a是指一个外六角螺栓配上一个弹垫和一个平垫组合搓牙紧固在一起的三组合件。
如图23及图24所示,第三安装部1033设置于安装支架103的底部的两端,并且位于第二安装部1032的远离缺口1035的一端,第三安装部1033为从第二安装部1032的远离缺口1035的一端向前延伸的条形板,第三安装部1033平行于网孔板104的第四安装部1042设置,第三安装部1033上设置有第二簧片螺母105b。
如图23及图24所示,安装支架103上开设有缺口1035,该缺口1035位于两个第二安装部1032之间,散热件101固定于安装支架103上时,反充电阻102的朝向网孔板104的一端从该缺口1035中穿出,从而使气流经网孔板104的散热孔后直接吹拂在反充电阻102的正面,以实现快速降温。当然,该缺口1035也可以用开孔来替代。
如图23及图24所示,网孔板104设置于电阻组件1的朝向割草机的前进方向的一侧,网孔板104包覆于反充电阻102的前侧及两侧。网孔板104包括主体部1041及两个第四安装部1042,两个第四安装部1042为自主体部1041 的左右两端向后侧(也即主体部1041朝向散热件101的一侧)延伸形成的侧板,第四安装部1042上开设有第三安装孔1043,第二组合螺栓106b穿过第三安装孔1043和第二簧片螺母105b,以将网孔板104固定安装于第三安装部1033上。需要说明的是,第二组合螺栓106b是指一个外六角螺栓配上一个弹垫和一个平垫组合搓牙紧固在一起的三组合件。
如图23及图24所示,网孔板104的主体部1041上间隔布置有若干散热孔,该散热孔例如可以为圆孔、条形孔、十字孔、Y形孔、三角孔或其他,该散热孔的尺寸需满足安规要求,可以避免手指直接触碰反充电阻102被烫伤的风险。作为示例,在图23及图24中,该散热孔为圆孔,圆孔的直径介于7mm-9mm,譬如8mm,其直径满足安规要求。
如图23及图24所示,网孔板104的第四安装部1042的外表面上设置有“HOT”字样(也可以是“小心烫伤”字样或其他)作为防烫警告标识1044,提醒需要拆卸维修电阻组件1的人员不要在机器刚结束工作时就用手触摸这部分零件,需要等待一段时间,等反充电阻102的热量自然散发后再进行拆卸维修。
网孔板104的设置,除了具有避免手指直接触碰反充电阻102被烫伤的风险的作用外,还具有如下作用:在割草机行进过程中,气流通过散热孔的孔之后流速加快,也即网孔板104可以加速反充电阻102表面的空气流通来快速帮助反充电阻102降温;网孔板104可以阻挡碎草、树叶等杂物掉落在反充电阻102上,防止这些杂物因温度过高而起火,提高了割草机使用的安全性;反充电阻102远离控制模块的电气元件独立放置,不会出现高温损坏电气元件的现象。
如图21和22所示,电阻组件1固定安装于割草机的车架10的底部,以将反充电阻102与控制模块分开设置,可以杜绝割草作业过程中反充电阻102的高温对控制模块的电气元件的损害,延长控制模块的寿命。
为了减少对现有割草机的结构改动,可借用割草机整机上的挂接点进行安装固定。例如可借用割草组件40的调高机构的两个螺栓将电阻组件1固定在后 轮组件30’的驱动桥32’和割草组件40的割台中间位置,使得整个电阻组件1的所有表面完全裸露在空气中,能够最大程度的和空气进行热交换,同时反充电阻102前侧的网孔板104还可以将割台飞溅出的碎草、树叶等杂物阻挡,防止碎草、树叶等杂物掉落到电阻表面被烘干点燃而造成安全事故。
如图22所示,将电阻组件1安装于驱动桥32’和割草组件40的割台中间位置除了让反充电阻102具有良好的散热外,还可以借助割草组件40的割台的宽度,后轮组件30’的后轮31的遮挡来阻止人的身体与反充电阻102直接接触,以免出现被反充电阻102的高温烫伤的情况。
图25示出了流动气流与电阻组件1的相对运动示意图,当割草机运行时,气流会直接通过网孔板104上的孔进行加速冲击在反充电阻102的表面,带走反充电阻102产生的热量。
图26示出了电阻组件1在流动气流作用下的散热示意图,由于电阻组件1四周的空气流速增加,而散热件101部分的流速不变,从而在散热件101的后侧(设置散热筋的一侧)形成负压,使得散热件101上的热量快速向四周逸散。
本发明的电阻组件,将反充电阻从防反充模块中独立出来安装,以将反充电阻和控制模块独立设置,以此保护控制模块不被反充电阻的高温损坏,延长控制模块的寿命。本发明的电阻组件,结构简单,便于安装和替换。
如图27-图42所示,为了解决割草机1000用吹风机2000风向调节操作不方便和过程比较繁琐的技术问题,本发明通过在吹风机2000上引入多连杆设计的吹风机风向调节机构200来实现吹风机2000风口风向的调节。如图42所示,吹风机200安装于割草机1000的前端。
请参阅图27-图33,在本实施例中,吹风机2000包括吹风机总成100和安装于吹风机总成100上的吹风机风向调节机构200。吹风机总成100包括吹风机骨架150、收容于吹风机骨架150内的电机组件(未图示)和风叶组件(未图示)、设置于吹风机骨架150上方的把手120、设置于吹风机骨架150下方的用于支撑整个吹风机总成100的底座110、设置于吹风机骨架150一侧的用于与割草机1000连接的第二连接件140以及设置于吹风机骨架150上的控制器 130。吹风机骨架150包括出风口151,出风口151设置于吹风机骨架150的一侧,第二连接件140设置于吹风机骨架150的靠近割草机1000的一侧(见图42),可通过第二连接件140将吹风机2000安装于割草机1000的前端。
请参阅图27-图33所示,在本实施例中,吹风机风向调节机构200包括档位座220、旋转摆臂230、调节手柄210、连杆组件240、调节板旋转轴250以及风向调节板260。档位座220安装于吹风机骨架150上,旋转摆臂230转动安装于档位座220上,调节手柄210的一端枢设于旋转摆臂230的一端,连杆组件240的一端与旋转摆臂230的另一端连接,调节板旋转轴250穿设于吹风机骨架150的出风口151处,调节板旋转轴250的一端通过传动件251与连杆组件240的另一端连接,风向调节板260位于吹风机骨架150的出风口151内,风向调节板260固定连接于调节板旋转轴250上,风向调节板260可随调节板旋转轴250同步转动。
为了便于理解和说明,如图27所示,在本发明中,我们定义平行于调节手柄210的枢轴的方向为前后方向,定义平行旋转摆臂230的回转轴的方向为左右方向。
本发明的吹风机风向调节机构200通过调节手柄210的前后摆动,带动旋转摆臂230的绕着转轴(轴销231)做回转运动,旋转摆臂230带动连杆组件240上下运动,连杆组件240带动调节板旋转轴250做回转运动,调节板旋转轴250带动风向调节板260进行摆动,从而改变出风口151的大小和出风的风向。
请参阅图27-图33所示,在本实施例中,档位座220的底端例如可通过螺栓或者焊接方式安装固定于吹风机2000的吹风机骨架150的顶部靠近割草机1000的一端,这样操作者在割草机1000的驾驶位置上身体前倾,操作者的手臂能够通过调节手柄210进行风向的角度调节,而不需要从割草机1000上下来,在出风口151处进行风向调节,简单方便,节省人力和时间。可以理解的是,档位座220也可以设置于吹风机骨架150的其他合适位置,只要能够保证便操作者在割草机1000的驾驶位置上身体前倾,操作者的手臂能够够着调节手柄 210即可。
请参阅图27-图33所示,在本实施例中,档位座220的顶部开设有大体沿前后方向延伸的长条状滑槽221,长条状滑槽221限定出调节手柄210的活动范围;长条状滑槽221的左侧侧壁(也可以是右侧侧壁)上间隔设置有多个用于调节手柄210限位的棘齿档位槽223,当调节手柄210调整到合适的角度后卡合于对应的棘齿档位槽223,每个棘齿档位槽223的个数对应档位的个数,每个棘齿档位槽223能够实现一个角度的调节,在图图27-图33中示出了包含5个棘齿档位槽223的情况。
请参阅图27-图33所示,在本实施例中,调节手柄210包括握持部212和枢轴安装部213。握持部212为杆状结构,握持部212的上端套设有手柄套211,设置手柄套211是为了方便使用者手握持,握持部212的侧壁的靠近棘齿档位槽223的一侧设置有与棘齿档位槽223相匹配的棘齿214,调节手柄210调整到对应档位后,在第二扭簧280的作用下调节手柄210的棘齿214可卡合于对应的棘齿档位槽223中。
枢轴安装部213为管状结构,枢轴安装部213的侧壁安装于握持部212的下端,枢轴安装部213的轴向与握持部212的轴向垂直。枢轴安装部213通过销轴236枢设于旋转摆臂230的手柄安装部238上,销轴236一端依次穿过旋转摆臂230的上部的一端侧壁、枢轴安装部213的中心孔后从旋转摆臂230的手柄安装部的238上部的另一端侧壁穿出,并通过第一R销232和第一垫圈233限位。当然,枢轴安装部213的轴向也可以和握持部212的轴向也可以是非垂直结构。
请参阅图27-图33所示,在本实施例中,在调节手柄210的枢轴安装部213上还套设有第一扭簧290,第一扭簧290的一端固定于调节手柄210的握持部212上,第一扭簧290的另一端固定于旋转摆臂230上,第一扭簧290作用于调节手柄210上的力,使调节手柄210一直有向档位座220的棘齿档位槽223的方向(图28中的左侧)有运动趋势。
请参阅图27-图33所示,在本实施例中,旋转摆臂230大体为L形,旋转 摆臂230包括相互连接的手柄安装部238和连杆安装部237。旋转摆臂230通过轴销231安装于档位座220上,旋转摆臂230可绕销轴231转动。轴销231通过第一螺栓234和第二垫圈235固定安装于档位座220上,旋转摆臂230的轴孔套设于轴销231上。
请参阅图27-图33所示,在本实施例中,连杆组件240的上端固定在连杆安装部237的远离轴销231的一端,连杆组件240的下端通过传动件251与调节板旋转轴250连接。
在一具体示例中,连杆组件240的两端安装有两个关节轴承270,关节轴承270包括相互连接的关节竖直段271和关节水平段272,关节竖直段271具有内螺纹孔,关节水平段272具有外螺纹;连杆组件240的两端设置有与关节竖直段271的内螺纹孔相匹配的螺纹段241,连杆组件240的两端分别通过螺纹段241旋入两个关节轴承270的关节竖直段271的内螺纹孔中,并通过第三螺母274紧固。
为了便于叙述,定义位于连杆组件240上端的关节轴承270为上关节轴承,定义位于连杆组件240下端的关节轴承270为下关节轴承。上关节轴承的关节水平段272穿过连杆安装部237的远离轴销231的一端,并通过第二螺母273固定;下关节轴承的关节水平段272穿过传动件251的一端,并通过第二螺母273固定。当然,关节轴承270与连杆组件240、旋转摆臂230以及传动件251的也可采用其他合理的连接方式。需要说明的是,为了使吹风机风向调节机构200紧凑,可在档位座220的一侧开设弧形孔222,该弧形孔22用于旋转摆臂230在调节手柄210的带动下摆动时,供与上关节轴承的关节水平段272连接的第二螺母273活动,这样就可以使连杆组件240更靠近旋转摆臂230。
请参阅图27-图33所示,在本实施例中,调节板旋转轴250穿设于吹风机骨架150的出风口151处的管壁,调节板旋转轴250的两端可通过第二R销253和第三垫圈252限位于出风口151的两侧,并且调节板旋转轴250位于出风口151的中间位置。调节板旋转轴250的一端与传动件251的一端固连,从而使调节板旋转轴250与传动件251可以同步旋转,风向调节板260可通过第二螺 栓261和第一螺母262固定在调节板旋转轴250的位于出风口151内的轴段上,也即风向调节板260位于出风口151内。
请参阅图27-图33所示,在本实施例中,第二扭簧280套设在调节板旋转轴250的靠近传动件251的一端,位于传动件251和第二R销253之间,第二扭簧280的一端固定于传动件251上,第二扭簧280的另一端固定于吹风机骨架150的固定部152上,固定部152例如可设置于出风口151的管壁上。第二扭簧280会给调节板旋转轴250一个向下的力,在自然状态下调节板旋转轴250会在第二扭簧280的作用下,有一个回转趋势,这个趋势会消除各个连杆之间的装配间隙,同时通过连杆组件240会带动旋转摆臂230有一个顺时针旋转的趋势,最终旋转摆臂230带动调节手柄210有一个向前运动的趋势,使调节手柄210的棘齿214卡在档位座220的棘齿档位槽223里面(图30-图32)
请参阅图32-图37所示,调节手柄210可以有两种方向的运动状态,前后运动(对应图32及图33)和左右运动(对应图34-图37)。如图34-图37所示,第一扭簧290的作用让调节手柄210向档位座220的棘齿档位槽223的开槽方向运动,左右运动的状态一直受到向左的扭力可卡合在档位座220的棘齿档位槽223里面;调节手柄210的棘齿214需要克服第一扭簧290的扭力摆动才能脱离棘齿档位槽223。如图32、图33第二扭簧280的作用是消除多连杆之间的运动间隙,同时给调节手柄210图示出顺时针的扭力,调节手柄210的棘齿214和档位座220的棘齿档位槽223互成棘齿啮合机构,让自然状态下调节手柄210有向前运动的力,这个向前运动的力让调节手柄210棘齿214的牢固的卡在档位座220的棘齿档位槽223里面,不会窜动,松动。
在进行风向调节时,当调节手柄210位于图29所示的中间位置时,风向调节板260位于图30所示的中间位置,风向不改变;当调节手柄210按照图38中的顺时针转动(向前)时,风向调节板260按照图39所示的逆时针转动,风向朝上;当调节手柄210按照图40中的逆时针转动(向后)时,风向调节板260按照图41所示的瞬时针转动,风向朝下。
进行吹风机2000风向角度的调节时,操作者在割草机1000的驾驶位置上 身体前倾,手臂即可通过调节手柄210进行吹风机2000风口风向的多角度调节,调节过程简单方便,并且在调节过程中操作者无需要下割草机1000,节省人力和时间。
如图43-50所示,为了解决割草机1000用吹风机2000风向调节操作不方便和过程比较繁琐的技术问题,本发明实施例还介绍另一种吹风机风向调节机构,该吹风机风向调节机构为手动式的吹风机风向调节机构,采用手动的方式来调节吹风机2000风口风向,包括安装于吹风机出风口151处的第一旋转风道总成600和驱动第一旋转风道总成600的出风口管道旋转的驱动机构,驱动机构为手动驱动机构300。
请参阅图43,在本实施例中,吹风机2000包括吹风机总成100和安装于吹风机总成100上的吹风机风口方向调节机构。吹风机总成100包括吹风机骨架150、收容于吹风机骨架150内的电机组件和风叶组件、设置于吹风机骨架150上方的把手120、设置于吹风机骨架150下方的用于支撑整个吹风机总成100的底座110、连接吹风机骨架150的一侧与割草机1000的第二连接件140以及控制器130。吹风机骨架150包括吹风机出风口151,吹风机出风口151设置于吹风机骨架150的一侧,第二连接件140设置于吹风机骨架150的靠近草坪机的一侧(见图50),可通过第二连接件140将吹风机2000安装于割草机1000的前端。
请参阅图43-45所示,在本实施例中,第一旋转风道总成600安装于吹风机出风口151处,第一旋转风道总成600包括第一进风口管道610、固定管道630、第一旋转件640和第一出风口管道620。第一进风口管道610例如可以为弯管结构,第一进风口管道610的上端具有连接法兰,该第一进风口管道610的连接法兰通过紧固组件650与吹风机2000的吹风机出风口151处的连接法兰固定连接,以将第一进风口管道610的上端固定于吹风机2000的吹风机出风口151处,紧固组件650包括螺栓651、第四垫圈652及螺母653。当然,第一进风口管道610的上端与吹风机2000的吹风机出风口151处也可采用铆钉或焊接的方式连接固定。
请参阅图43-45所示,在本实施例中,固定管道630整体具有圆柱管状结构,固定管道630的下端向外形成有底端环形凸沿631,当第一旋转件640套设于固定管道630的外部时,底端环形凸沿631用于支撑第一旋转件640,以防止第一旋转件640掉落。固定管道630的上端例如可通过喉箍660与第一进风口管道610的下端连接固定,从而便于拆装。此外,固定管道630的上端例如可通过螺栓螺母紧固件或铆钉与第一进风口管道610的下端连接固定。
请参阅图43-45所示,在本实施例中,固定管道630的管壁上还设置有第一连接件632,第一连接件632的一端固定连接于固定管道630的位于第一旋转件640和第一进风口管道610之间的外壁上,第一连接件632的另一端可通过螺栓螺母组件固定连接于蜗杆座360的顶部。
请参阅图43-45所示,在本实施例中,第一旋转件640为旋转齿盘,包括位于上端的第一齿盘部641和位于下端的第一连接管部642。第一齿盘部641为圆盘状结构,第一齿盘部641具有供固定管道630穿过的中心开口,第一齿盘部641的中心开口与第一连接管部642连通。第一旋转件640套设于固定管道630的下端,第一旋转件640的下端搭接于底端环形凸沿631上,以防止第一旋转件640掉落,第一旋转件640可绕固定管道630旋转。
请参阅图45所示,在本实施例中,在第一旋转件640的内壁上开设有螺旋状的油道643,润滑油嘴644安装于第一旋转件640的第一连接管部642的外壁上,润滑油嘴644与第一旋转件640的内壁贯通,通过润滑油嘴644可把润滑油注入第一旋转件640的螺旋状油道643内,以润滑第一旋转件640和固定管道630之间的相对转动。
请参阅图43-45所示,在本实施例中,底端环形凸沿631的外径大于第一旋转件640的第一连接管部642的内径而小于第一连接管部642的外径。第一出风口管道620例如可以为弯管结构,第一出风口管道620的上端套设于第一连接管部642的下端,并可通过喉箍660连接固定,从而便于拆装。此外,第一出风口管道620的上端与第一连接管部642的下端例如也可通过螺栓螺母紧固件或铆钉连接固定。
请参阅图42-47所示,在本实施例中,手动驱动机构300和第一旋转风道总成600设置于吹风机2000的同一侧,手动驱动机构300位于第一旋转风道总成600的一侧。手动驱动机构300包括旋转手柄320、联轴器和蜗杆370,旋转手柄320通过联轴器与蜗杆370连接,其中,联轴器和蜗杆370作为手动驱动机构300的传递动力或运动的传动件。蜗杆370上设置有第一主动啮合部件,第一齿盘部641上开设有第一从动啮合部件645,蜗杆370设置于第一旋转件640的一侧,以保证蜗杆370的第一主动啮合部件与第一旋转件640的第一从动啮合部件645啮合,通过蜗杆370的转动带动第一旋转件640绕着固定管道630进行转动。作为示例,蜗杆370的第一主动啮合部件为螺旋齿,第一齿盘部641的第一从动啮合部件645为齿牙。
在本实施例中,蜗杆370与第一旋转件640是直接啮合来传递动力或运动的,但可以理解的是,蜗杆370与第一旋转件640之间也可通过中间件啮合传递动力或运动,蜗杆370与中间件构成传动件。
请参阅图43-47所示,在本实施例中,联轴器为万向联轴器,包括连杆350和两个十字轴万向节340,连杆350例如为圆杆,连杆350的一端通过一十字轴万向节340与旋转手柄320的下端连接,并可通过销轴固定,连杆350的另一端通过另一十字轴万向节340与蜗杆370的一端连接,并通过销轴固定。旋转手柄320在操作者的作用下进行回转运动,带动位于上方的十字轴万向节340(定义为上十字轴万向节340)转动,上十字轴万向节带动连杆350转动,连杆350带动位于下方的十字轴万向节340(定义为上十字轴万向节340)的转动,下十字轴万向节340带动蜗杆370转动,蜗杆370的转动带动第一旋转件640进行转动,从而带动第一出风口管道620的转动,从而达到风向角度调节的目的。
请参阅图43-47所示,在本实施例中,旋转手柄320的上端套设有手柄套310,设置手柄套310是为了方便使用者手握持。
请参阅图43-47所示,在本实施例中,第一齿盘部641可只在局部圆周方向上开设有第一从动啮合部件645,这样的设计既可以满足角度调节的需要, 还可以起到限位的作用,限位作用是指第一旋转件640转动到齿边缘位置就会停止,从而限制第一出风口管道620的继续转动。当然,第一齿盘部641的整个圆周方向上也可以均设有与蜗杆370的第一主动啮合部件相啮合的第一从动啮合部件645。
请参阅图43-47所示,在本实施例中,手动驱动机构300通过固定座330安装于吹风机2000的一侧,固定座330的一侧从上到下依次设置有上安装板331和下安装板333,上安装板331和下安装板333上开设有同轴设置的供旋转手柄320穿过的安装孔,旋转手柄320的下端依次穿过固定座330的上安装板331和下安装板333的安装孔后与万向联轴器的一端连接,旋转手柄320的侧壁外部设置有圆环状的卡位凸起321,卡位凸起321搭接于上安装板331的安装孔处。
请参阅图43-47所示,在本实施例中,手动驱动机构300还包括套设于旋转手柄320上的压簧323和第五垫圈324,第五垫圈324通过第一销轴322固定于旋转手柄320上,压簧323设置于第五垫圈324和上安装板331之间以使压簧323处于压缩状态,这样压簧323通过第五垫圈324间接给旋转手柄320一个向下的作用力,这个作用力使旋转手柄320上的卡位凸起321和上安装板331一直有一个预紧力的作用,在自然状态下,旋转手柄320不会晃动、松动。
请参阅图43、46及47所示,在本实施例中,手动驱动机构300还包括套筒332,套筒332为圆管,套筒332的直径大于压簧323的外径,套筒332套设于压簧323的外部,套筒332位于第五垫圈324和上安装板331之间,套筒332的上端与上安装板331的底部连接固定。
请参阅图43-47所示,在本实施例中,蜗杆370固定于蜗杆座360上,蜗杆座360通过螺栓固定在吹风机骨架150的一侧,蜗杆座360位于第一旋转风道总成600与吹风机骨架150之间,蜗杆座360的上端通过第一连接件632与固定管道630的侧壁连接。
如图48和图49所示,在本实施例中,通过控制旋转手柄320顺时针转动可以带动第一出风口管道620进行逆时针旋转,反之旋转手柄320的逆时针转 动可以带动第一出风口管道620进行顺时针旋转,从而实现风向调节的目的。在一具体示例中,旋转手柄320顺时针旋转一圈(360°),可带动蜗杆370转动一圈,带动第一出风口管道620逆时针旋转4°(这个角度可根据蜗杆370和第一旋转件640之间的传动比来调整),旋转手柄320逆时针旋转一圈(360°),可带动蜗杆370转动一圈,带动第一出风口管道620顺时针旋转4°(这个角度可根据蜗杆370和第一旋转件640之间的传动比来调整)。在一示例中,当第一旋转件640的上端第一齿盘部641的外圆周上只设置一半的齿形时,也即齿形角度为180°时;第一出风口管道620的出风口相对于图示中0°位置可在-45°~135°角度范围B内进行无极调节。
本实施例的吹风机风口方向调节机构的设计,能够实现对吹风机2000风口风向的无极调节。另外在旋转手柄320内部安装有压簧323,压簧323给旋转手柄320一直有一个预紧力的作用,在自然状态下,旋转手柄320不会晃动、松动,使整套调节机构紧凑,可靠。
如图50所示,吹风机2000通过设置于其一侧的第二连接件140安装于割草机1000的前端。为了便于操作者调整,吹风机风口方向调节机构的旋转手柄320布置于吹风机2000的靠近割草机1000的一侧的顶部合适位置,以便于操作者在割草机1000的驾驶位置时操控。进行吹风机2000风口方向的调节时,整个调节过程操作者在割草机1000的驾驶位置上身体前倾,操作者的手臂即可通过旋转上旋转手柄320,带动第一出风口管道620旋转,进行风向的角度调节,调节过程简单方便,并且在调节过程中操作者无需要下割草机1000,节省人力和时间。
如图51-57所示,为了解决割草机1000用吹风机2000风向调节操作不方便和过程比较繁琐的技术问题,本发明实施例还介绍又一种吹风机风向调节机构来实现吹风机2000风口风向的调节,包括安装于吹风机出风口151处的第二旋转风道总成500和驱动第二旋转风道总成500的出风口管道旋转的驱动机构,驱动机构为电机驱动机构。
请参阅图51-55所示,在本实施例中,吹风机2000包括吹风机总成100和 安装于吹风机总成100上的吹风机风口方向调节机构。吹风机总成100包括吹风机骨架150、收容于吹风机骨架150内的电机组件180和风叶组件160、设置于吹风机骨架150上方的把手120、设置于吹风机骨架150下方的用于支撑整个吹风机总成100的底座110、设置于吹风机骨架150一侧的用于与割草机1000连接的第二连接件140以及设置于吹风机骨架150上的控制器130。
吹风机骨架150包括吹风机出风口151和沿电机组件180的轴向方向依次设置的连接架156、固定架153、进风罩154和风机壳体155;电机组件180安装在固定架153内,风机壳体155安装在固定架153的一侧,风叶组件160安装在电机组件180的输出轴上,进风罩154安装在风机壳体155的远离固定架153的一侧,连接架156通过螺栓安装在固定架153,第二连接件140设置于连接架156的远离固定架153的一侧,可通过第二连接件140将吹风机2000安装于割草机1000的前端。
请参阅图51-54所示,在本实施例中,控制器130设置于固定架153的顶部,控制器罩壳罩131设于控制器130上,制器罩壳罩131的顶面和侧面开设有用于容纳后文将要介绍的电机驱动机构的调节开关410的开口。
在一具体示例中,吹风机2000的部分参数如下:风叶组件160为包括6个叶片的叶轮;进风罩154的进风面积例如可以是0.0288m 2;电机组件180例如可以是1.5KW电机,额定电压82V,工作电流16.5A,连续工作制;控制器130为1.5KW控制器,最大允许电流45A;连接架156的远离固定架153的一侧安装有方管作为第二连接件140;整套吹风机2000主体结构设计达到IPX4的防水等级要求,最高风速42m/s,最高风量922CFM。
请参阅图51-54所示,在本实施例中,第二旋转风道总成500安装于吹风机出风口151处,第二旋转风道总成500包括第二进风口管道510、第二旋转件540、固定托盘560、第二出风口管道520。第二进风口管道510例如可以为弯管结构,第二进风口管道510的上端具有连接法兰,该第二进风口管道510的连接法兰通过紧固组件与吹风机2000的设置于吹风机骨架150的一侧的吹风机出风口151处的连接法兰固定连接,以实现将第二进风口管道510的上端固 定于吹风机出风口151处,紧固组件例如可包括螺栓、垫圈及螺母;第二进风口管道510的下端插入第二旋转件540内并搭接于第二旋转件540的中心孔处。当然,第二进风口管道510的上端与吹风机出风口151处也可采用铆钉或焊接的方式连接固定。
请参阅图51-54所示,在本实施例中,固定托盘560整体具有中心开口561的圆盘状结构,固定托盘560的一侧固定安装于吹风机2000的吹风机骨架150上,固定托盘560的中心开口561用于安装第二旋转件540。固定托盘560上开设有齿轮开孔562,齿轮开孔562位于第二旋转件540的一侧,电机驱动机构的第三驱动电机400安装于固定托盘560的朝向出风口管道的一侧,电机驱动机构的传动齿轮420穿过齿轮开孔562后设于旋转件的一侧。
请参阅图51-54所示,在本实施例中,第二旋转件540为旋转齿盘,包括位于上端的第二齿盘部541和位于下端的第二连接管部542。第二齿盘部541为圆盘状结构,第二齿盘部541具有供第二进风口管道510的下端插入的中心开口,第二齿盘部541的中心开口与第二连接管部542连通,第二进风口管道510的下端插入第二齿盘部541的中心开口内,并通过环形凸肋511搭接于第二齿盘部541的中心开口处,其中,环形凸肋511设置于第二进风口管道510的靠近下端外侧壁上。
请参阅图51-54所示,在本实施例中,第二出风口管道520例如可以为弯管结构,第二出风口管道520的上端套设于第二旋转件540的第二连接管部542的下端,并可通过螺栓螺母紧固件或铆钉连接固定,也即第二旋转件540的下端穿过固定托盘560的中心开口561后与第二出风口管道520的上端连接固定,第二旋转件540和第二出风口管道520固定在一起旋转。此外,第二出风口管道520的上端与第二旋转件540的第二连接管部542的下端例如也可通过喉箍连接固定,从而便于拆装。
请参阅图51-54所示,在本实施例中,第二旋转风道总成500还包括齿盘罩壳530,所处齿盘罩壳530盖合固定于固定托盘560上并遮盖第二旋转件540和传动齿轮420,从而可以保护第二旋转件540和传动齿轮420。为了便于安装 和拆卸,齿盘罩壳530可采用径向对接的齿盘左罩壳531和齿盘右罩壳532,齿盘左罩壳531和齿盘右罩壳532分别位于第二进风口管道510的两侧,齿盘左罩壳531和齿盘右罩壳532的上端对接安装于环形凸肋511的上端,齿盘左罩壳531和齿盘右罩壳532的下端分别可通过螺栓螺母组件固定于固定托盘560上。作为示例,齿盘左罩壳531和齿盘右罩壳532的顶面大体为半圆环结构,两者对接后可形成与第二进风口管道510的相应位置处的外径相适应的中心开口,该中心开口的直径需要小于环形凸肋511的外径,能起到防止第二进风口管道510脱出齿盘罩壳530的目的。
请参阅图51-54所示,在本实施例中,为了减少第二旋转件540与固定托盘560的直接接触摩擦,可在第二旋转件540与固定托盘560之间设置第六垫圈550,第六垫圈550套设于第二旋转件540的第二连接管部542上,并位于第二齿盘部541与固定托盘560之间。作为示例,第六垫圈550例如可以是尼龙垫圈。
请参阅图51-55所示,在本实施例中,电机驱动机构包括第三驱动电机400、传动齿轮420以及调节开关410,传动齿轮420设置于第三驱动电机400的输出轴上,其中,传动齿轮420作为电机驱动机构的传递动力或运动的传动件。传动齿轮420设置于第二旋转件540的一侧,且传动齿轮420的第二主动啮合部件与第二旋转件540的第二从动啮合部件543啮合,调节开关410与第三驱动电机400连接,通过调节开关410控制第三驱动电机400来驱动传动齿轮420转动,从而带动第二旋转件540与第二出风口管道520同步转动,完成吹风机2000风口方向的调节。
请参阅图51-55示,在本实施例中,第三驱动电机400例如可通过螺钉螺母组件固定安装于固定托盘560的朝向第二出风口管道520的一侧。传动齿轮420穿过固定托盘560的齿轮开孔562后设于第二旋转件540的一侧,第三驱动电机400的旋转带动第二旋转件540和第二出风口管道520同步绕着第二进风口管道510旋转。在一具体示例中,第三驱动电机400例如可以是蜗杆电机,蜗杆电机的额定电压72V,额定转速100r/min,输出齿轮齿数7;第二旋转件 540,齿数为91齿,传动比为1:13,额定转速7.7r/min;第二出风口管道520的直径115mm,出风口面积0.01m 2,风口角度斜向下20°,额定转速7.7r/min。
在本实施例中,传动齿轮420与第二旋转件540是直接啮合来传递动力或运动的,但可以理解的是,在其他实施例中,传动齿轮420与第二旋转件540之间也可通过中间件啮合传递动力或运动,传动齿轮420与中间件构成传动件。
请参阅图51-55所示,在本实施例中,第二从动啮合部件543设置于第二齿盘部541的整个圆周上,传动齿轮420的第二主动啮合部件和第二齿盘部541的第二从动啮合部件543例如可以均为齿牙。可以理解的是,在其他实施例中,第二旋转件540也可采用实施例一的第一旋转件640相似的第二从动啮合部件543,也即第二从动啮合部件543可只设置于第二齿盘部541的局部圆周上,这样的设计既可以满足角度调节的需要,还可以起到限位的作用,第二旋转件540转动到齿边缘位置就会停止,从而限制第二出风口管道520的继续转动。
为了便于风向调节,可将电机驱动机构的调节开关410设置于吹风机2000的吹风机骨架150的上端相应位置,该位置需要保证将吹风机2000安装于割草机1000的前部时,操作者在割草机1000的驾驶位置上身体前倾,驾驶者的手臂能够够到为宜。在本实施例中,电动驱动调节开关410安装于制器罩壳罩131的开口处。
图56示出了本实施例的具有吹风机风口方向调节机构的吹风机2000的电气原理图。请参阅图56所示,第三驱动电机400(蜗杆电机)通过调节开关410与电池包连接,通过调节开关410可控制第三驱动电机400与电池包190的通断来给第三驱动电机400上电或者下电,该电池包例如可以是割草机1000的供电电池包。吹风机2000的电机组件180通过控制器130与电池包190连接,控制器130还与吹风机2000的电机组件180自带的霍尔传感器170通信连接,通过控制器130控制吹风机2000的电机组件180的工作。
调节开关410控制第三驱动电机400的转动方向(正转、反转及停止),第三驱动电机400的输出转向有逆时针和顺时针两种转向,第三驱动电机400顺时针转动带第二出风口管道520的下管口在水平方向上逆时针转动;反之,第 三驱动电机400逆时针转动则带动第二出风口管道520的下管口在水平方向上顺时针转动,从而实现吹风机2000的风口朝向在360°圆周范围内自由调节。
本实施例的整体吹风机2000的设计为风口绕所在位置水平方向上进行360°自由旋转,通过调节开关410控制第三驱动电机400可实现随时正转,反转的功能。为了让蜗壳风机的效率较高,风机的进出风口面积比为2.77。请参阅图57,可通过上文提到的第二连接件140将吹风机2000整机安装在割草机1000的前端,吹风机2000整机最低点离地面高度h1例如可以为120mm;吹风机2000的出风口(第二出风口管道520的下管口)的最低点离地面高度h2例如可以为140mm,从而吹风机2000的出风口(第二出风口管道520的下管口)的最低高度高于吹风机2000整机最低高度(h2-h1)例如可以为20mm。可以理解的是,h1和h2的大小可以根据实际需要进行调节,并不限于上述数据。
本实施例的吹风机2000的结构设计,能够实现吹风机2000风口水平面内360度自由调节。
如图57所示,吹风机2000通过设置于其一侧的第二连接件140安装于割草机1000的前端。为了便于风向调节,可将吹风机风口方向调节机构的调节开关410设置于吹风机2000的吹风机骨架150的上端合适位置,该位置需要保证将吹风机2000安装于割草机1000的前部时,操作者在割草机1000的驾驶位置上身体前倾,驾驶者的手臂能够够到为宜。进行吹风机2000风口方向的调节时,整个调节过程操作者在割草机1000的驾驶位置上身体前倾,驾驶者的手臂即可触碰调节开关410,进而控制风口的任意角度调节,调节过程简单方便,并且在调节过程中操作者无需要下割草机1000,节省人力和时间。在本实施例中,电动驱动调节开关410安装于制器罩壳罩131的开口处。
本发明所示实施例的上述描述(包括在说明书摘要中的内容)并非意在详尽列举或将本发明限制到本文所公开的精确形式。尽管在本文仅为说明的目的而描述了本发明的具体实施例和本发明的实例,但是正如本领域技术人员将认识和理解的,各种等效修改是可以在本发明的精神和范围内的。如所指出的,可以按照本发明实施例的上述描述来对本发明进行这些修改,并且这些修改将在 本发明的精神和范围内。

Claims (19)

  1. 一种割草机,其特征在于,包括:
    车架;
    行走组件,包括连接于所述车架的第一行走轮组件和第二行走轮组件;
    所述第一行走轮组件和/或所述第二行走轮组件包括主行走轮及轮毂电机,所述主行走轮与所述轮毂电机连接,所述轮毂电机设置于所述车架的外部一侧;
    工作组件,与所述车架连接;
    座椅,设置于所述车架上;
    电池包,所述电池包下降安装于所述车架上并延伸到所述座椅的下方。
  2. 根据权利要求1所述的割草机,其特征在于,所述第一行走轮组件设置于所述车架的前端,所述第一行走轮组件包括前轮以及用于控制所述前轮转向的转向机构;所述第二行走轮组件设置于所述车架的尾端,所述第二行走轮组件包括所述主行走轮和所述轮毂电机。
  3. 根据权利要求2所述的割草机,其特征在于,所述座椅设置于所述第一行走轮组件和所述第二行走轮组件之间,所述电池包下降安装于所述车架的尾部并延伸到所述座椅的下方。
  4. 根据权利要求3所述的割草机,其特征在于,所述座椅设置于所述第一行走轮组件和所述第二行走轮组件之间,所述电池包下降安装于所述车架的尾部并延伸到所述座椅的下方。
  5. 根据权利要求4所述的割草机,其特征在于,所述电池包的前端面与所述主行走轮的轮轴的纵向距离介于340mm-400mm之间。
  6. 根据权利要求4所述的割草机,其特征在于,所述电池包的重心位置与所述主行走轮的轮轴的距离介于60mm-70mm之间。
  7. 根据权利要求4所述的割草机,其特征在于,所述电池包重心位置距地面的高度介于400mm-500mm之间。
  8. 根据权利要求7所述的割草机,其特征在于,所述轮毂电机的总长度介于250mm-310mm之间。9.根据权利要求1所述的割草机,其特征在于,所述 工作组件包括:
    割台;
    驱动组件,所述驱动组件安装在所述割台的顶部,并与所述割台之间设置有通风口;
    刀具组件,所述刀具组件安装在所述割台的底部,并与所述驱动组件的输出轴连接。
  9. 根据权利要求9所述的割草机,其特征在于,所述割台上有安装孔,所述驱动组件安装在所述安装孔处,并部分从所述安装孔伸入所述割台的底部,并连接所述刀具组件。
  10. 根据权利要求1所述的割草机,其特征在于,所述割草机还包括电阻组件,所述电阻组件安装于所述车架底部,所述电阻组件包括反充电组。
  11. 根据权利要求11所述的割草机,其特征在于,所述行走组件包括设置于所述车架底部的第一行走轮组件和第二行走轮组件,所述电阻组件位于所述第一行走轮组件和所述第二行走轮组件之间。
  12. 根据权利要求11所述的割草机,其特征在于,所述电阻组件还包括:
    安装支架,通过所述安装支架将所述电阻组件安装于所述车架上;
    散热件,安装于所述安装支架上;
    以及
    网孔板,安装于所述安装支架上;
    所述反充电阻位于所述散热件和所述网孔板之间,所述网孔板的散热孔显露出所述反充电阻的远离所述散热件的一侧表面。
  13. 根据权利要求13所述的割草机,其特征在于,所述网孔板设置于所述电阻组件的朝向所述割草机的前进方向的一侧。
  14. 根据权利要求11所述的割草机,其特征在于,所述割草机包括控制模块,所述控制模块与所述电阻组件独立安装;所述控制模块与所述反充电阻连接,并且所述控制模块与所述反充电阻共同构成防反充模块。
  15. 根据权利要求1所述的割草机,其特征在于,所述割草机还包括吹风机, 所述吹风机安装至所述割草机的前端;所述吹风机包括:
    吹风机骨架;以及
    吹风机风向调节机构,设置于所述吹风机骨架上;
    其中,所述吹风机风向调节机构包括:
    档位座,安装于吹风机骨架上,其中,所述吹风机骨架具有出风口;
    旋转摆臂,转动安装于所述档位座上;
    调节手柄,所述调节手柄的一端枢设于所述旋转摆臂;
    连杆组件,所述连杆组件的一端与所述旋转摆臂连接;
    调节板旋转轴,设置于所述出风口处,所述调节板旋转轴通过传动件与所述连杆组件的另一端连接;以及
    风向调节板,位于所述出风口内,所述风向调节板固定连接于所述调节板旋转轴上,所述风向调节板随所述调节板旋转轴同步转动。
  16. 根据权利要求16所述的割草机,其特征在于,所述调节手柄包括握持部和枢轴安装部,所述枢轴安装部设置于所述握持部一端,所述吹风机风向调节机构还包括第一扭簧,所述第一扭簧套设于所述枢轴安装部上,所述第一扭簧的一端连接于所述握持部,另一端连接于所述旋转摆臂上。
  17. 根据权利要求16所述的割草机,其特征在于,所述吹风机风向调节机构还包括第二扭簧,所述第二扭簧套设于所述调节板旋转轴上,所述第二扭簧的一端连接于所述传动件上,另一端连接于所述吹风机骨架上。
  18. 根据权利要求16所述的割草机,其特征在于,所述吹风机风向调节机构还包括两个关节轴承,所述连杆组件的一端通过所述关节轴承与所述旋转摆臂连接,所述连杆组件的另一端通过所述关节轴承与所述传动件的一端连接,所述传动件的另一端与所述调节板旋转轴连接。
  19. 根据权利要求1所述的割草机,其特征在于,所述割草机还包括吹风机,所述吹风机与所述割草机连接;
    所述吹风机包括:
    吹风机总成;以及
    调节机构,设置于所述吹风机总成上,所述调节机构包括:
    旋转风道总成,连接于所述吹风机的出风口;
    驱动机构,所述驱动机构与所述旋转风道总成传动连接,所述驱动机构具有操作部件;
    其中,所述操作部件的设置位置为操作者处于所述草坪机的驾驶位置上时能够操控的位置,通过所述操作部件控制所述驱动机构工作,从而带动所述旋转风道总成转动。
PCT/CN2022/098906 2021-06-16 2022-06-15 割草机 WO2022262762A1 (zh)

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CN202121339069.9U CN215379928U (zh) 2021-06-16 2021-06-16 园林工具
CN202121339839.XU CN215380408U (zh) 2021-06-16 2021-06-16 吹风机风口方向调节机构、吹风机及草坪机
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CN202110667075.5A CN113303178B (zh) 2021-06-16 2021-06-16 一种草坪机
CN202110670378.2A CN113243190A (zh) 2021-06-16 2021-06-16 园林工具
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