WO2021077953A1 - 园林工具的动力组件及园林工具 - Google Patents

园林工具的动力组件及园林工具 Download PDF

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Publication number
WO2021077953A1
WO2021077953A1 PCT/CN2020/115835 CN2020115835W WO2021077953A1 WO 2021077953 A1 WO2021077953 A1 WO 2021077953A1 CN 2020115835 W CN2020115835 W CN 2020115835W WO 2021077953 A1 WO2021077953 A1 WO 2021077953A1
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WO
WIPO (PCT)
Prior art keywords
power
crankshaft
motor
assembly
engine
Prior art date
Application number
PCT/CN2020/115835
Other languages
English (en)
French (fr)
Inventor
郭宁
朱光跃
孔钊
Original Assignee
苏州科瓴精密机械科技有限公司
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Publication of WO2021077953A1 publication Critical patent/WO2021077953A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
    • B60K17/08—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N3/00—Other muscle-operated starting apparatus
    • F02N3/02—Other muscle-operated starting apparatus having pull-cords

Definitions

  • the utility model relates to a power assembly of a garden tool and a garden tool, in particular to a power assembly with a gasoline half-shaft engine and a garden tool powered by the gasoline half-shaft engine.
  • Garden tools also known as garden tools, outdoor tools, including lawn mowers, brush cutters, hair dryers, pruners and other professional tools, bring great convenience to people in gardening, especially for garden maintenance. For families, it has become an indispensable tool.
  • Garden tools can usually be powered by gasoline engines, lithium batteries, etc.
  • gasoline engines have the characteristic of providing power continuously for a long time, and are favored by consumers with such needs.
  • the utility model provides a power assembly of a garden tool and a garden tool, so as to solve the technical problem of how to ensure the convenience of starting a half-shaft engine and make the structure compact.
  • a power assembly of a garden tool which includes a half-shaft engine and an engine starting device.
  • the half-shaft engine outputs power to the garden tool through the output end of its crankshaft, and the engine starts
  • the device includes: a motor, which is driven by a DC power supply; a power accumulation unit, which transmits the power of the motor in the direction of the accumulated power through a gear reduction mechanism; a power transmission unit, which transmits the power accumulated by the power accumulation unit To the crankshaft of the half-shaft engine; wherein the motor and the gear reduction mechanism are arranged on the output end side of the crankshaft, and the power storage unit, the power transmission unit and the crankshaft are arranged on On the first axis, the motor is arranged on a second axis parallel to the first axis.
  • the second axis where the motor is located is parallel to the second axis where the power storage unit, the power transmission unit and the crankshaft are located, so that the power assembly
  • the design becomes more compact, so that the overall appearance of the garden tool looks tiny. What is worth to be surprised is that it does not bring about the sacrifice of the performance of the half-shaft engine, which greatly enhances user confidence.
  • the second axis is located below the first axis on a vertical plane including the first axis.
  • the second axis where the motor is located is parallel to the second axis where the power storage unit, the power transmission unit and the crankshaft are located, the second axis is located below the first axis on a vertical plane including the first axis. , So that the center of gravity of the motor is located below the crankshaft, and the center of gravity of the power assembly is slightly moved downward in the vertical direction, so that when the user operates the garden tool, there will be no obvious discomfort.
  • the power transmission unit includes a starter wheel
  • the power accumulation unit drives the starter wheel to rotate to start the half-shaft engine
  • the starter wheel interacts with the power after the half-shaft engine is started.
  • the accumulation unit is disengaged and rotates together with the crankshaft
  • the starter wheel is arranged on the first axis, and the projections of the motor and the starter wheel at least partially overlap.
  • blades are provided on the starter wheel to enable the starter wheel to generate an airflow for cooling the half-shaft engine during rotation, and the motor is located in a passage through which the airflow passes.
  • the motor By arranging the motor in the passage through which the air flow passes, the heat generated during the working process of the motor can be effectively dissipated, the performance of the motor is enhanced, and the service life of the motor is increased.
  • a garden tool which includes a work head assembly, a power assembly for driving the work head assembly, an operating assembly for users to operate, and a combination of the work head assembly, the operating assembly,
  • the power assembly is connected into an integral connecting rod assembly that can move together, wherein the power assembly includes a half-shaft engine and an engine starting device, and the half-shaft engine includes a crankshaft at the output end of the crankshaft, The crankshaft is connected with the connecting rod assembly to transmit power to the working head assembly;
  • the engine starting device includes: a motor, which is driven by a DC power source; The power of the electric motor is transmitted in the direction; a power transmission unit that transmits the power stored in the power storage unit to the crankshaft of the half-shaft engine; wherein the power storage unit, the power transmission unit, and the crankshaft
  • the motor and the gear reduction mechanism are arranged on a side of the output end of the crankshaft, and the motor is arranged on a second axis parallel to the first
  • crankshaft Because at the output end of the crankshaft of the half-shaft engine, the crankshaft is connected to the connecting rod assembly through the connector to transmit power.
  • the motor and the gear reduction mechanism are arranged on the side of the output end of the crankshaft of the half-shaft engine, where the motor is located.
  • the second axis is parallel to the second axis where the power storage unit, the power transmission unit and the crankshaft are located, making it possible to design the power components more compactly, so that the overall appearance of the garden tools looks vibrant, which is worthy of surprise However, it does not bring about the sacrifice of half-shaft engine performance, thus greatly enhancing user confidence.
  • the connecting rod assembly is connected to the crankshaft through a connector, the connector is arranged on the first axis, and the projections of the motor and the connector at least partially overlap.
  • the second axis is located below the first axis on a vertical plane including the first axis.
  • the second axis where the motor is located is parallel to the second axis where the power storage unit, the power transmission unit and the crankshaft are located, the second axis is located below the first axis on a vertical plane including the first axis. , So that the center of gravity of the motor is located below the crankshaft, and the center of gravity of the power assembly is slightly moved downward in the vertical direction, so that when the user operates the garden tool, there will be no obvious discomfort.
  • the operating assembly includes a grip portion for a user to operate, the DC power supply is provided at the grip portion, the connecting rod assembly is connected to the crankshaft through a connector, and the connector is provided On the first axis, the motor is located below the connector.
  • the power transmission unit includes a starter wheel
  • the power accumulation unit drives the starter wheel to rotate to start the half-shaft engine
  • the starter wheel interacts with the power after the half-shaft engine is started.
  • the accumulation unit is disengaged and rotates together with the crankshaft
  • the starter wheel is arranged on the first axis
  • the projections of the motor and the starter wheel at least partially overlap
  • the motor and the half-shaft engine The projection of the subject does not overlap.
  • blades are provided on the starter wheel to enable the starter wheel to generate an airflow for cooling the half-shaft engine during rotation, and the motor is located in a passage through which the airflow passes.
  • the motor By arranging the motor in the passage through which the air flow passes, the heat generated during the working process of the motor can be effectively dissipated, the performance of the motor is enhanced, and the service life of the motor is increased.
  • the power assembly includes a housing for accommodating the half-shaft engine and the engine starting device, a portion of the housing close to the connecting rod assembly is provided with an air inlet, and the housing is far from the connecting rod assembly An air outlet is provided in the portion of the airflow, and a passage through which the air flow passes is formed between the air inlet and the air outlet.
  • the airflow passage is formed from the front end to the rear end of the garden tool, avoiding heat-bearing airflow from the air outlet Blow to users who are operating garden tools.
  • another garden tool including a working head assembly, a power assembly for driving the working head assembly, an operating assembly for users to operate, and combining the working head assembly and the operating assembly ,
  • the power assembly is connected into an integral connecting rod assembly that can move together, wherein the power assembly includes an engine and an engine starting device, and the engine includes a crankshaft at the output end of the crankshaft, and the crankshaft is connected to the crankshaft at the output end of the crankshaft.
  • the connecting rod assembly is connected to transmit power to the working head assembly;
  • the engine starting device includes: a motor, which is driven by a DC power supply; a power accumulation unit, which transmits the motor in the direction of the accumulated power through a gear reduction mechanism The power; a power transmission unit that transmits the power accumulated by the power accumulation unit to the crankshaft of the engine; wherein the motor and the gear reduction mechanism are provided on the side of the output end of the crankshaft, and the The power storage unit, the power transmission unit and the crankshaft are arranged on a first axis, the motor is arranged on a second axis parallel to the first axis; the connecting rod assembly is connected to the The crankshaft is connected, the connector is arranged on the first axis, the projections of the motor and the connector at least partially overlap, and the projections of the motor and the main body of the engine do not overlap.
  • crankshaft Because at the output end of the crankshaft of the engine, the crankshaft is connected to the connecting rod assembly through the connector to transmit power.
  • the motor and the gear reduction mechanism on the output end of the crankshaft of the engine, the second axis where the motor is located and the power accumulation
  • the unit and the power transmission unit are parallel to the second axis on which the crankshaft is located, making it possible to design the power components more compactly, so that the overall appearance of the garden tool looksaki. What is amazing is that it does not have The sacrifice of engine performance has greatly enhanced user confidence.
  • the structure of the power assembly is more compact, and the overall appearance of the garden tool is more elegant, and The motor is far away from the main body of the engine, reducing the probability of potential safety hazards.
  • the starter wheel is provided with blades so that the starter wheel generates an airflow for cooling the half-shaft engine during rotation, and the electric motor is located in the passage through which the airflow passes;
  • the power assembly includes A housing that accommodates the half-shaft engine and the engine starting device, the part of the housing close to the connecting rod assembly is provided with an air inlet, and the part of the housing away from the connecting rod assembly is provided with an air outlet, and the airflow The passing passage is formed between the air inlet and the air outlet.
  • the airflow passage is formed from the front end to the rear end of the garden tool, avoiding heat-bearing airflow from the air outlet Blow to users who are operating garden tools.
  • Figure 1 is a schematic structural diagram of a garden tool provided by an embodiment of the utility model
  • Figure 2 is a schematic diagram of a partial structure of a garden tool provided by an embodiment of the utility model
  • Figure 3 is a schematic partial cross-sectional view of a garden tool provided by an embodiment of the utility model
  • Figure 4 is a schematic structural diagram of another garden tool provided by an embodiment of the utility model
  • Figure 5 is a partial structural diagram of another garden tool provided by an embodiment of the utility model
  • Figure 6 is a schematic diagram of the structure of a prior art all-shaft engine
  • the engine may include an all-shaft engine and a half-shaft engine.
  • the feature of the all-shaft engine is that its crankshaft has two half-shafts, such as a left half-shaft 1 and a right half-shaft; the feature of the half-shaft engine is that its crankshaft has only one half-shaft.
  • a power assembly 100 for a garden tool which includes a half-shaft engine 110 and an engine starting device 120.
  • the half-shaft The type engine 110 outputs power to the garden tool through the output end of the crankshaft 111.
  • the engine starting device 120 includes:
  • the motor 121 is driven by a DC power supply 122.
  • the DC power supply 122 may be a lithium battery or a lithium battery pack.
  • the power accumulating unit 123 transmits the power of the motor 121 in the direction of accumulating power through a gear reduction mechanism 124.
  • the power transmission unit 125 transmits the power stored in the power storage unit 123 to the crankshaft 111 of the half-shaft engine 110.
  • the torque output by the motor 121 is transmitted to the power accumulation unit 123 via the gear reduction mechanism 124.
  • the power accumulation unit 123 converts mechanical energy into potential energy. When the accumulated potential energy reaches the threshold, it instantly transmits to the power transmission unit. 125 is released and rotated, and the power transmission unit 125 drives the crankshaft 111 to rotate to start the half-shaft engine 110.
  • the motor 121 and the gear reduction mechanism 124 are located on the side of the output end of the crankshaft 111, and the power accumulation unit 123, the power transmission unit 125 and the crankshaft 111 are arranged on the first axis X, and the motor 121 is arranged parallel to the first axis X. On the second axis Y.
  • FIGS. 1-3 or 4-5 show a lawn mower, but the power assembly 100 of the present invention is not limited to the application of lawn mowers.
  • the power assembly 100 of the present invention also It can be applied to various types of garden tools such as brush cutters, hair dryers, pruners, etc.
  • the second axis Y where the motor 121 is located and the power storage unit 123, the power transmission unit 125 and the crankshaft 111 are located
  • the second axis Y is parallel, making it possible to design the power assembly 100 more compactly, and the change in the shape of the power assembly 100 does not bring about a sense of abruptness, so that the overall appearance of the garden tool looks tiny, which is worth wondering. , It does not bring about the sacrifice of the performance of the half-shaft engine 110, thus greatly enhancing user confidence.
  • the second axis Y is located below the first axis X on a vertical plane including the first axis X.
  • the second axis Y where the motor 121 is located is parallel to the second axis Y where the power storage unit 123, the power transmission unit 125 and the crankshaft 111 are located, the second axis Y is set to a vertical axis including the first axis X.
  • the plane is located below the first axis X, so that the center of gravity of the motor 121 is located below the crankshaft 111, and the center of gravity of the power assembly 100 moves slightly downward in the vertical direction, so that when the user operates the garden tool, no obvious discomfort will be generated.
  • the power transmission unit 125 includes a starter wheel 1251.
  • the power accumulation unit 123 drives the starter wheel 1251 to rotate to start the half-shaft engine 110.
  • the starter wheel 1251 is in the half-shaft engine After 110 is started, it is separated from the power storage unit 123 and rotates together with the crankshaft 111.
  • the starting wheel 1251 is arranged on the first axis X, and the projections of the motor 121 and the starting wheel 1251 are at least partially overlapped.
  • the motor 121 can be located at a 360-degree relative position of the left, right, upper, and lower sides of the starter wheel 1251, as long as the motor 121 and the starter wheel 1251 are in a direction perpendicular to the first axis X or the second axis Y.
  • the starter wheel 1251 is provided with blades 1252 so that the starter wheel 1251 generates an airflow for cooling the half-shaft engine 110 during rotation, and the motor 121 is located in the airflow In the passage through.
  • the motor 121 By arranging the motor 121 in the passage through which the air flows, the heat generated during the operation of the motor 121 can be effectively dissipated, the performance of the motor 121 is enhanced, and the service life of the motor 121 is increased.
  • a garden tool is provided.
  • the garden tool shown in FIGS. 1-3 or 4-5 is a lawn mower.
  • the embodiments of the present invention are not limited to the application on lawn mowers, and can also be applied to Brush cutters, hair dryers, pruners and other types of garden tools.
  • the garden tools provided in this embodiment include: a work head assembly 200, a power assembly 100 for driving the work head assembly 200, an operating assembly 300 for users to operate, and the work head assembly 200, the operating assembly 300, and the power assembly 100 are connected together.
  • the movable integral link assembly 400 includes: a work head assembly 200, a power assembly 100 for driving the work head assembly 200, an operating assembly 300 for users to operate, and the work head assembly 200, the operating assembly 300, and the power assembly 100 are connected together.
  • the movable integral link assembly 400 The movable integral link assembly 400.
  • the working head assembly 200 may include a baffle 201 and a cutting element 202 that is driven to rotate by the power assembly 100.
  • the power assembly 100 includes a half-shaft engine 110 and an engine starting device 120. among them,
  • the half-shaft engine 110 includes a crankshaft 111 at the output end of the crankshaft 111, and the crankshaft 111 is connected with the connecting rod assembly 400 to transmit power to the working head assembly 200.
  • the engine starting device 120 includes: a motor 121, which is driven by a DC power supply 122; a power accumulation unit 123, which transmits the power of the motor 121 in the direction of accumulating power through a gear reduction mechanism 124; and a power transmission unit 125, which accumulates the power The power accumulated in the unit 123 is transmitted to the crankshaft 111 of the half-shaft engine 110.
  • the torque output by the motor 121 is transmitted to the power accumulation unit 123 via the gear reduction mechanism 124.
  • the power accumulation unit 123 converts mechanical energy into potential energy. When the accumulated potential energy reaches the threshold, it instantly transmits to the power transmission unit. 125 is released and rotated, and the power transmission unit 125 drives the crankshaft 111 to rotate to start the half-shaft engine 110.
  • the power accumulation unit 123, the power transmission unit 125 and the crankshaft 111 are arranged on the first axis X
  • the motor 121 and the gear reduction mechanism 124 are located on the side of the output end of the crankshaft 111
  • the motor 121 is arranged parallel to the first axis X.
  • the crankshaft 111 is connected to the connecting rod assembly 400 through the connector 401 to transmit power.
  • the motor 121 and the gear reduction mechanism 124 are installed on the crankshaft 111 of the half-shaft engine 110.
  • the second axis Y where the motor 121 is located is parallel to the second axis Y where the power storage unit 123, the power transmission unit 125 and the crankshaft 111 are located, making the design of the power assembly 100 more compact. In this way, the appearance of the garden tool looks tiny on the whole. What is amazing is that it does not bring about the sacrifice of the performance of the half-shaft engine 110, thus greatly enhancing user confidence.
  • the connecting rod assembly 400 is connected to the crankshaft 111 through a connector 401, the connector 401 is arranged on the first axis X, the motor 121 and the connector 401
  • the projections of at least partially overlap, and the projections of the motor 121 and the main body of the half-shaft engine do not overlap.
  • the motor 121 can be located at a 360-degree relative position on the left, right, upper, and lower sides of the connector 401, as long as the motor 121 and the connector 401 are in a direction perpendicular to the first axis X or the second axis Y.
  • the projections on the upper part are at least partially overlapped; and the position of the motor 121 relative to the left, right, upper, and lower sides of the engine's main body in 360-degree space satisfies that the electric motor 121 and the main body of the half-shaft engine are perpendicular to each other.
  • the projections in the direction of the first axis X or the second axis Y do not coincide.
  • the main body of the half-shaft engine may be a part of the half-shaft engine that has no connection relationship with the engine starting device.
  • the motor 121 and the connector 401 By configuring the motor 121 and the connector 401 to at least partially overlap the projection, it makes the structure of the power assembly 100 more compact, so that the overall appearance of the garden tool is more elegant, and the motor 121 is far away from the main body of the engine, reducing the probability of potential safety hazards. .
  • the second axis Y is located below the first axis X on a vertical plane including the first axis X.
  • the second axis Y where the motor 121 is located is parallel to the second axis Y where the power storage unit 123, the power transmission unit 125 and the crankshaft 111 are located, the second axis Y is set to a vertical axis including the first axis X.
  • the plane is located below the first axis X, so that the center of gravity of the motor 121 is located below the crankshaft 111, and the center of gravity of the power assembly 100 moves slightly downward in the vertical direction, so that when the user operates the garden tool, no obvious discomfort will be generated.
  • the operating assembly 300 includes a grip portion 301 for the user to operate, and the DC power supply 122 may be provided at the grip portion 301.
  • the DC power supply 122 is disposed close to the holding part 301, for example, the DC power supply 122 may be disposed under the holding part 301.
  • the connecting rod assembly 400 can be connected to the crankshaft 111 through a connector 401, the connector 401 is arranged on the first axis X, and the motor 121 is located below the connector 401.
  • the power transmission unit 125 in the power assembly 100 includes a starter wheel 1251, and the power storage unit 123 drives the starter wheel 1251 to rotate to start the half-shaft engine 110, After the half-shaft engine 110 is started, the starter wheel 1251 is separated from the power storage unit 123 and rotates together with the crankshaft 111.
  • the starter wheel 1251 is arranged on the first axis X, and the projections of the motor 121 and the starter wheel 1251 at least partially overlap.
  • the motor 121 can be located at a 360-degree relative position of the left, right, upper, and lower sides of the starter wheel 1251, as long as the motor 121 and the starter wheel 1251 are in a direction perpendicular to the first axis X or the second axis Y.
  • the starter wheel 1251 is provided with blades so that the starter wheel 1251 generates airflow for cooling the half-shaft engine 110 during the rotation, and the motor 121 is located where the airflow passes In the channel.
  • the motor 121 By arranging the motor 121 in the passage through which the air flows, the heat generated during the operation of the motor 121 can be effectively dissipated, the performance of the motor 121 is enhanced, and the service life of the motor 121 is increased.
  • the power assembly 100 includes a housing 130 that houses the half-shaft engine 110 and the engine starting device 120.
  • the housing 130 is provided with an air inlet 131 near the connecting rod assembly 400, and the housing 130 is away from the connecting rod.
  • a part of the rod assembly 400 is provided with an air outlet 132.
  • the passage through which the airflow passes is formed between the air inlet 131 and the air outlet 132, wherein the passage through which the airflow passes is indicated by a path indicated by an arrow in FIG. 1 or FIG. 4.
  • the airflow passage is formed from the front end to the rear end of the garden tool to avoid air outlets
  • the heated air flow from 132 blows toward the user who is operating the garden tool.
  • a garden tool is provided.
  • the garden tool shown in FIGS. 1-3 or 4-5 is a lawn mower.
  • the embodiments of the present invention are not limited to the application on lawn mowers, and can also be applied to Brush cutters, hair dryers, pruners and other types of garden tools.
  • the garden tools provided in this embodiment include: a work head assembly 200, a power assembly 100 for driving the work head assembly 200, an operating assembly 300 for users to operate, and the work head assembly 200, the operating assembly 300, and the power assembly 100 are connected together.
  • the movable integral link assembly 400 includes: a work head assembly 200, a power assembly 100 for driving the work head assembly 200, an operating assembly 300 for users to operate, and the work head assembly 200, the operating assembly 300, and the power assembly 100 are connected together.
  • the movable integral link assembly 400 The movable integral link assembly 400.
  • the working head assembly 200 may include a baffle 201 and a cutting element 202 that is driven to rotate by the power assembly 100.
  • the power assembly 100 includes an engine 110 and an engine 110 and an engine starting device 120.
  • the engine 110 may be an all-shaft engine or a half-shaft engine, among which,
  • the engine 110 includes a crankshaft 111 at the output end of the crankshaft 111, and the crankshaft 111 is connected with the connecting rod assembly 400 to transmit power to the working head assembly 200.
  • the engine starting device 120 includes: a motor 121, which is driven by a DC power supply 122; a power accumulation unit 123, which transmits the power of the motor 121 in the direction of accumulating power through a gear reduction mechanism 124; and a power transmission unit 125, which accumulates the power The power accumulated in the unit 123 is transmitted to the crankshaft 111 of the engine 110.
  • the torque output by the motor 121 is transmitted to the power accumulation unit 123 via the gear reduction mechanism 124, and the power accumulation unit 123 converts mechanical energy into potential energy.
  • the power transmission unit 125 drives the crankshaft 111 to rotate to start the engine 110.
  • the power accumulation unit 123, the power transmission unit 125 and the crankshaft 111 are arranged on the first axis X
  • the motor 121 and the gear reduction mechanism 124 are located on the side of the output end of the crankshaft 111
  • the motor 121 is arranged parallel to the first axis X.
  • the connecting rod assembly 400 is connected to the crankshaft 111 through a connector 401, the connector 401 is arranged on the first axis X, the motor 121 and the connector 401
  • the projections of at least partially overlap, and the projections of the motor 121 and the main body of the half-shaft engine do not overlap.
  • the motor 121 can be located at a 360-degree relative position on the left, right, upper, and lower sides of the connector 401, as long as the motor 121 and the connector 401 are in a direction perpendicular to the first axis X or the second axis Y.
  • the projections on the upper part are at least partially overlapped; and the position of the motor 121 relative to the left, right, upper, and lower sides of the engine's main body in 360-degree space satisfies that the electric motor 121 and the main body of the half-shaft engine are perpendicular to each other.
  • the projections in the direction of the first axis X or the second axis Y do not coincide.
  • the main body of the half-shaft engine may be a part of the half-shaft engine that has no connection relationship with the engine starting device.
  • crankshaft 111 Since the crankshaft 111 is connected to the connecting rod assembly 400 through the connector 401 at the output end of the crankshaft 111 of the engine 110 to transmit power, the motor 121 and the gear reduction mechanism 124 are arranged on the output end side of the crankshaft 111 of the engine 110.
  • the second axis Y where 121 is located is parallel to the second axis Y where the power storage unit 123, the power transmission unit 125 and the crankshaft 111 are located, so that the design of the power assembly 100 becomes more compact, which makes the garden as a whole
  • the appearance of the tool looksaki. What is worth being surprised is that it does not sacrifice the performance of the engine 110, thus greatly enhancing user confidence.
  • the structure of the power assembly 100 is more compact, and the overall appearance of the garden tool is more compact. It is compact, and the motor 121 is far away from the main body of the engine, reducing the probability of potential safety hazards.
  • the starter wheel 1251 is provided with blades so that the starter wheel 1251 generates airflow for cooling the half-shaft engine 110 during the rotation, and the motor 121 is located where the airflow passes In the channel.
  • the motor 121 By arranging the motor 121 in the passage through which the air flows, the heat generated during the operation of the motor 121 can be effectively dissipated, the performance of the motor 121 is enhanced, and the service life of the motor 121 is increased.
  • the power assembly 100 includes a housing 130 that houses the half-shaft engine 110 and the engine starting device 120.
  • the housing 130 is provided with an air inlet 131 near the connecting rod assembly 400, and the housing 130 is away from the connecting rod.
  • a part of the rod assembly 400 is provided with an air outlet 132.
  • the passage through which the airflow passes is formed between the air inlet 131 and the air outlet 132, wherein the passage through which the airflow passes is indicated by a path indicated by an arrow in FIG. 1 or FIG. 4.
  • the airflow passage is formed from the front end to the rear end of the garden tool to avoid air outlets
  • the heated air flow from 132 blows toward the user who is operating the garden tool.

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Abstract

一种园林工具的动力组件(100)及园林工具，园林工具的动力组件(100)包括半轴式发动机(110)和发动机起动装置(120)，发动机起动装置(120)包括：电机(121)，其由一直流电源（122）驱动；动力积蓄单元（123），其通过一齿轮减速机构（124）沿着积蓄动力的方向传递电机（121）的动力；动力传递单元（125），其将动力积蓄单元（123）积蓄的动力传递给半轴式发动机（110）的曲轴（111）；其中，动力积蓄单元（123）、动力传递单元（125）与曲轴（111）设置在第一轴线（X）上，电机（121）和齿轮减速机构（124）设置于曲轴（111）的输出端一侧，并且电机（121）设置在平行于第一轴线（X）的第二轴线（Y）上。园林工具的动力组件（100）及园林工具，起动便利、结构紧凑。

Description

园林工具的动力组件及园林工具 技术领域
本实用新型涉及园林工具的动力组件及园林工具，尤其涉及具有汽油半轴式发动机的动力组件及由汽油半轴式发动机提供动力的园林工具。
背景技术
园林工具，也称为花园工具，户外工具，包括打草机、割灌机、吹风机、修枝机等多种专业化工具，给人们打理花园带来极大便利，特别是对于需要维护庭院的家庭来说，其已成为是不可或缺的工具。园林工具通常可以通过汽油发动机、锂电池等来动力，其中汽油发动机提供动力的园林工具具有长时间持续提供动力的特点，受到具有如此需求的消费者青睐。
传统由汽油发动机提供动力的园林工具，需要用户手动起动发动机，费时耗力，用户体验性差。通过电起动替代手动起动，可以解决这一难题。现有技术中，通过由电池驱动的电机来起动发动机，以实现电起动。汽油发动机提供动力的园林工具与锂电池提供动力园林工具相比，显得较为笨重，用于实现电起动的电机等设备的增加，对于保持原有的外形带来极大挑战。
实用新型内容
本实用新型提供一种园林工具的动力组件及园林工具，以解决如何既能保证半轴式发动机起动便利，又能使结构紧凑的技术问题。
作为本实用新型的第一方面，提供一种园林工具的动力组件，包括半轴式 发动机和发动机起动装置，所述半轴式发动机通过其曲轴的输出端给园林工具输出动力，所述发动机起动装置包括：电机，其由一直流电源驱动；动力积蓄单元，其通过一齿轮减速机构沿着积蓄动力的方向传递所述电机的动力；动力传递单元，其将所述动力积蓄单元积蓄的动力传递给所述半轴式发动机的曲轴；其中，所述电机和所述齿轮减速机构设置于所述曲轴的输出端一侧，并且所述动力积蓄单元、所述动力传递单元与所述曲轴设置在第一轴线上，所述电机设置在平行于所述第一轴线的第二轴线上。
通过将电机和齿轮减速机构设置于半轴式发动机的曲轴的输出端一侧，电机所位于的第二轴线与动力积蓄单元、动力传递单元与曲轴所位于的第二轴线平行，使动力组件的设计变得更为紧凑成为可能，这样在整体上使园林工具的外观看上去精巧，值得惊叹的是，其并没有带来半轴式发动机性能的牺牲，因而极大增强用户信心。
可选地，所述第二轴线在一包括所述第一轴线在内的竖直平面上位于所述第一轴线的下方。
由于电机所位于的第二轴线与动力积蓄单元、动力传递单元与曲轴所位于的第二轴线平行，通过设置第二轴线在一包括第一轴线在内的竖直平面上位于第一轴线的下方，使得电机重心位于曲轴下方，动力组件的重心在竖直方向上稍向下移，这样当用户操作园林工具时，不会产生明显的不适感。
可选地，所述动力传递单元包括起动轮，所述动力积蓄单元带动所述起动轮旋转以起动所述半轴式发动机，所述起动轮在所述半轴式发动机起动后与所述动力积蓄单元脱离并与所述曲轴一起旋转，所述起动轮设置在所述第一轴线上，所述电机和所述起动轮的投影至少部分重合。
通过将电机和起动轮的投影设置成至少部分重合，其使得结构更为紧凑，从而使动力组件的外观更为精巧。
可选地，所述起动轮上设有叶片以使所述起动轮在旋转过程中产生冷却所述半轴式发动机的气流，所述电机位于所述气流经过的通道中。
通过将电机设置在气流经过的通道中，可以对电机工作过程中产生的热量进行有效散发，增强电机性能，提高电机寿命。
作为本实用新型的第二方面，提供一种园林工具，包括工作头组件、驱动所述工作头组件的动力组件、供用户操作的操作组件，以及将所述工作头组件、所述操作组件、所述动力组件连接成能一起移动的整体的连杆组件，其中，所述动力组件包括半轴式发动机和发动机起动装置，所述半轴式发动机包括：曲轴，于所述曲轴的输出端，该曲轴与所述连杆组件连接以传输动力给所述工作头组件；所述发动机起动装置包括：电机，其由一直流电源驱动；动力积蓄单元，其通过一齿轮减速机构沿着积蓄动力的方向传递所述电机的动力；动力传递单元，其将所述动力积蓄单元积蓄的动力传递给所述半轴式发动机的曲轴；其中，所述动力积蓄单元、所述动力传递单元与所述曲轴设置在第一轴线上，所述电机和所述齿轮减速机构设置于所述曲轴的输出端一侧，并且所述电机设置在平行于所述第一轴线的第二轴线上。
由于在半轴式发动机的曲轴的输出端，曲轴通过连接器与连杆组件连接以传输动力，通过将电机和齿轮减速机构设置于半轴式发动机的曲轴的输出端一侧，电机所位于的第二轴线与动力积蓄单元、动力传递单元与曲轴所位于的第二轴线平行，使动力组件的设计变得更为紧凑成为可能，这样在整体上使园林工具的外观看上去精巧，值得惊叹的是，其并没有带来半轴式发动机性能的牺 牲，因而极大增强用户信心。
可选地，所述连杆组件通过一连接器与所述曲轴连接，所述连接器设置在所述第一轴线上，所述电机和所述连接器的投影至少部分重合。
通过将电机和连接器配置成投影至少部分重合，其不仅使得动力组件的结构更为紧凑，而且使园林工具的整体外观更为精巧。
可选地，所述第二轴线在一包括所述第一轴线在内的竖直平面上位于所述第一轴线的下方。
由于电机所位于的第二轴线与动力积蓄单元、动力传递单元与曲轴所位于的第二轴线平行，通过设置第二轴线在一包括第一轴线在内的竖直平面上位于第一轴线的下方，使得电机重心位于曲轴下方，动力组件的重心在竖直方向上稍向下移，这样当用户操作园林工具时，不会产生明显的不适感。
可选地，所述操作组件包括供用户操作的握持部，所述直流电源设置于所述握持部处，所述连杆组件通过一连接器与所述曲轴连接，所述连接器设置在所述第一轴线上，所述电机位于所述连接器的下方。
通过将电机设置于连接曲轴与连杆组件的连接器下方，使得动力组件在外观上设计成更为精巧的结构变为可能，其外由于直流电源设置在握持部上，整体园林工具的重心变得稍向前移，这种变化更有利于用户操作园林工具，增强使用体验。
可选地，所述动力传递单元包括起动轮，所述动力积蓄单元带动所述起动轮旋转以起动所述半轴式发动机，所述起动轮在所述半轴式发动机起动后与所述动力积蓄单元脱离并与所述曲轴一起旋转，所述起动轮设置在所述第一轴线上，所述电机和所述起动轮的投影至少部分重合，并且所述电机和所述半轴式 发动机的主体的投影不重合。
通过将电机和起动轮的投影设置成至少部分重合，其使得结构更为紧凑，从而使动力组件的外观更为精巧。
可选地，所述起动轮上设有叶片以使所述起动轮在旋转过程中产生冷却所述半轴式发动机的气流，所述电机位于所述气流经过的通道中。
通过将电机设置在气流经过的通道中，可以对电机工作过程中产生的热量进行有效散发，增强电机性能，提高电机寿命。
可选地，所述动力组件包括收容所述半轴式发动机和所述发动机起动装置的外壳，所述外壳靠近所述连杆组件的部分设置进气口，所述外壳远离所述连杆组件的部分设置出气口，所述气流经过的通道在所述进气口与所述出气口之间形成。
通过将进气口设置在外壳靠近连杆组件的部分，将出气口设置在外壳远离连杆组件的部分，气流经过的通道自园林工具前端向后端形成，避免出气口出来的带热量的气流吹向正在操作园林工具的用户。
作为本实用新型的第三方面，提供又一种园林工具，包括工作头组件、驱动所述工作头组件的动力组件、供用户操作的操作组件，以及将所述工作头组件、所述操作组件、所述动力组件连接成能一起移动的整体的连杆组件，其中，所述动力组件包括发动机和发动机起动装置，所述发动机包括：曲轴，于所述曲轴的输出端，该曲轴与所述连杆组件连接以传输动力给所述工作头组件；所述发动机起动装置包括：电机，其由一直流电源驱动；动力积蓄单元，其通过一齿轮减速机构沿着积蓄动力的方向传递所述电机的动力；动力传递单元，其将所述动力积蓄单元积蓄的动力传递给所述发动机的曲轴；其中，所述电机和 所述齿轮减速机构设置于所述曲轴的输出端一侧，并且所述动力积蓄单元、所述动力传递单元与所述曲轴设置在第一轴线上，所述电机设置在平行于所述第一轴线的第二轴线上；所述连杆组件通过一连接器与所述曲轴连接，所述连接器设置在所述第一轴线上，所述电机和所述连接器的投影至少部分重合，并且所述电机和所述发动机的主体的投影不重合。
由于在发动机的曲轴的输出端，曲轴通过连接器与连杆组件连接以传输动力，通过将电机和齿轮减速机构设置于发动机的曲轴的输出端一侧，电机所位于的第二轴线与动力积蓄单元、动力传递单元与曲轴所位于的第二轴线平行，使动力组件的设计变得更为紧凑成为可能，这样在整体上使园林工具的外观看上去精巧，值得惊叹的是，其并没有带来发动机性能的牺牲，因而极大增强用户信心。通过将电机和连接器配置成投影至少部分重合，并且所述电机和所述发动机的主体的投影不重合，其使得动力组件的结构更为紧凑，从而使园林工具的整体外观更为精巧，并且电机远离发动机的主体，降低安全隐患发生几率。
可选地，所述起动轮上设有叶片以使所述起动轮在旋转过程中产生冷却所述半轴式发动机的气流，所述电机位于所述气流经过的通道中；所述动力组件包括收容所述半轴式发动机和所述发动机起动装置的外壳，所述外壳靠近所述连杆组件的部分设置进气口，所述外壳远离所述连杆组件的部分设置出气口，所述气流经过的通道在所述进气口与所述出气口之间形成。
通过将进气口设置在外壳靠近连杆组件的部分，将出气口设置在外壳远离连杆组件的部分，气流经过的通道自园林工具前端向后端形成，避免出气口出来的带热量的气流吹向正在操作园林工具的用户。
附图说明
图1为本实用新型实施例提供的一种园林工具的结构示意图；
图2为本实用新型实施例提供的一种园林工具的局部结构示意图；
图3为本实用新型实施例提供的一种园林工具的局部横截面示意图；
图4为本实用新型实施例提供的又一种园林工具的结构示意图；
图5为本实用新型实施例提供的又一种园林工具的局部结构示意图；
图6为现有技术的全轴式发动机的结构示意图；
具体实施方式
下面结合附图和实施例对本实用新型作进一步的详细说明。可以理解的是，此处所描述的具体实施例仅仅用于解释本实用新型，而非对本实用新型的限定。另外还需要说明的是，为了便于描述，附图中仅示出了与本实用新型相关的部分而非全部结构。
通常，发动机可以包括全轴式发动机和半轴式发动机。其中，如图6所示，全轴式发动机的特点是其曲轴具有两个半轴，例如左半轴1和右半轴2；半轴式发动机的特点是其曲轴仅具有一个半轴。
在本实用新型的一个实施例中，参见图1-3或图4-5所示，提供一种园林工具的动力组件100，其包括半轴式发动机110和发动机起动装置120，所述半轴式发动机110通过其曲轴111的输出端给园林工具输出动力。
发动机起动装置120包括：
电机121，其由一直流电源122驱动。该直流电源122可以是锂电池或锂电池包。
动力积蓄单元123，其通过一齿轮减速机构124沿着积蓄动力的方向传递电机121的动力。
动力传递单元125，其将动力积蓄单元123积蓄的动力传递给半轴式发动机110的曲轴111。
在半轴式发动机110的起动阶段，电机121输出的扭矩经齿轮减速机构124传递给动力积蓄单元123，动力积蓄单元123将机械能转化为势能，当积蓄的势能达到阈值时，瞬间向动力传递单元125释放并使其旋转，动力传递单元125驱动曲轴111转动以起动半轴式发动机110。
其中，电机121和齿轮减速机构124位于曲轴111的输出端一侧，并且动力积蓄单元123、动力传递单元125与曲轴111设置在第一轴线X上，电机121设置在平行于第一轴线X的第二轴线Y上。
值得注意的是，图1-3或图4-5示出的是一种打草机，但是本实用新型的动力组件100并不限制于打草机上的应用，本实用新型的动力组件100还可以应用在割灌机、吹风机、修枝机等各种类型的园林工具上。
通过将电机121和齿轮减速机构124设置于半轴式发动机110的曲轴111的输出端一侧，电机121所位于的第二轴线Y与动力积蓄单元123、动力传递单元125与曲轴111所位于的第二轴线Y平行，使动力组件100的设计变得更为紧凑成为可能，且动力组件100外形的改变没有带来突兀感，这样在整体上使园林工具的外观看上去精巧，值得惊叹的是，其并没有带来半轴式发动机110性能的牺牲，因而极大增强用户信心。
在本实用新型的一个实施例中，参见图1-3所示，第二轴线Y在一包括第一轴线X在内的竖直平面上位于第一轴线X的下方。
由于电机121所位于的第二轴线Y与动力积蓄单元123、动力传递单元125与曲轴111所位于的第二轴线Y平行，通过设置第二轴线Y在一包括第一轴线X在内的竖直平面上位于第一轴线X的下方，使得电机121重心位于曲轴111下方，动力组件100的重心在竖直方向上稍向下移，这样当用户操作园林工具时，不会产生明显的不适感。
在本实用新型的一个实施例中，参见图5所示，动力传递单元125包括起动轮1251，动力积蓄单元123带动起动轮1251旋转以起动半轴式发动机110，起动轮1251在半轴式发动机110起动后与动力积蓄单元123脱离并与曲轴111一起旋转。起动轮1251设置在第一轴线X上，电机121和起动轮1251的投影至少部分重合。具体地，电机121可以位于起动轮1251的左侧、右侧、上侧、下侧360度空间的相对位置，只要满足电机121和起动轮1251在垂直于第一轴线X或第二轴线Y方向上的投影至少部分重合即可。
通过将电机121和起动轮1251的投影设置成至少部分重合，其不仅使得结构更为紧凑，而且使动力组件100的外观更为精巧。
在本实用新型的一个实施例中，参见图2或图5所示，起动轮1251上设有叶片1252以使起动轮1251在旋转过程中产生冷却半轴式发动机110的气流，电机121位于气流经过的通道中。
通过将电机121设置在气流经过的通道中，可以对电机121工作过程中产生的热量进行有效散发，增强电机121性能，提高电机121寿命。
在本实用新型的一个实施例中，参见图1-3或图4-5所示，提供一种园林工具。具体地说，图1-3或图4-5示出的园林工具是一种打草机，需要说明的是，本实用新型的实施例并不限制于打草机上的应用，还可以应用于割灌机、吹风 机、修枝机等其他类型的园林工具。
本实施例提供的园林工具包括：工作头组件200、驱动工作头组件200的动力组件100、供用户操作的操作组件300，以及将工作头组件200、操作组件300、动力组件100连接成能一起移动的整体的连杆组件400。
其中，工作头组件200可以包括挡板201、由动力组件100驱动而旋转的切割元件202。
动力组件100包括半轴式发动机110和发动机起动装置120。其中，
半轴式发动机110包括：曲轴111，于曲轴111的输出端，该曲轴111与连杆组件400连接以传输动力给工作头组件200。
发动机起动装置120包括：电机121，其由一直流电源122驱动；动力积蓄单元123，其通过一齿轮减速机构124沿着积蓄动力的方向传递电机121的动力；动力传递单元125，其将动力积蓄单元123积蓄的动力传递给半轴式发动机110的曲轴111。
在半轴式发动机110的起动阶段，电机121输出的扭矩经齿轮减速机构124传递给动力积蓄单元123，动力积蓄单元123将机械能转化为势能，当积蓄的势能达到阈值时，瞬间向动力传递单元125释放并使其旋转，动力传递单元125驱动曲轴111转动以起动半轴式发动机110。
其中，动力积蓄单元123、动力传递单元125与曲轴111设置在第一轴线X上，电机121和齿轮减速机构124位于曲轴111的输出端一侧，并且电机121设置在平行于第一轴线X的第二轴线Y上。
由于在半轴式发动机110的曲轴111的输出端，曲轴111通过连接器401与连杆组件400连接以传输动力，通过将电机121和齿轮减速机构124设置于 半轴式发动机110的曲轴111的输出端一侧，电机121所位于的第二轴线Y与动力积蓄单元123、动力传递单元125与曲轴111所位于的第二轴线Y平行，使动力组件100的设计变得更为紧凑成为可能，这样在整体上使园林工具的外观看上去精巧，值得惊叹的是，其并没有带来半轴式发动机110性能的牺牲，因而极大增强用户信心。
在本实用新型的一个实施例中，参见图2、图3所示，连杆组件400通过一连接器401与曲轴111连接，连接器401设置在第一轴线X上，电机121和连接器401的投影至少部分重合，并且所述电机121和所述半轴式发动机的主体的投影不重合。具体地，电机121可以位于连接器401的左侧、右侧、上侧、下侧360度空间的相对位置，只要满足电机121和连接器401在垂直于第一轴线X或第二轴线Y方向上的投影至少部分重合即可；并且，电机121相对于发动机的主体的左侧、右侧、上侧、下侧360度空间的位置，满足电机121和所述半轴式发动机的主体在垂直于第一轴线X或第二轴线Y方向上的投影不重合。其中，所述半轴式发动机的主体可以是所述半轴式发动机上与所述发动机起动装置没有连接关系的部分。
通过将电机121和连接器401配置成投影至少部分重合，其使得动力组件100的结构更为紧凑，从而使园林工具的整体外观更为精巧，并且电机121远离发动机的主体，降低安全隐患发生几率。
在本实用新型的一个实施例中，参见图2所示，第二轴线Y在一包括第一轴线X在内的竖直平面上位于第一轴线X的下方。
由于电机121所位于的第二轴线Y与动力积蓄单元123、动力传递单元125与曲轴111所位于的第二轴线Y平行，通过设置第二轴线Y在一包括第一轴线 X在内的竖直平面上位于第一轴线X的下方，使得电机121重心位于曲轴111下方，动力组件100的重心在竖直方向上稍向下移，这样当用户操作园林工具时，不会产生明显的不适感。
在本实用新型的一个实施例中，参见图1、图3所示，操作组件300包括供用户操作的握持部301，直流电源122可以设置于握持部301处。具体地，直流电源122靠近握持部301设置，例如，直流电源122可以设置于握持部301下方。连杆组件400可以通过一连接器401与曲轴111连接，连接器401设置在第一轴线X上，电机121位于连接器401的下方。
通过将电机121设置于连接曲轴111与连杆组件400的连接器401下方，使得动力组件100在外观上设计成更为精巧的结构变为可能，其外由于直流电源122设置在握持部上，整体园林工具的重心变得稍向前移，这种变化更有利于用户操作园林工具，增强使用体验。
在本实用新型的一个实施例中，参见图2或图5所示，动力组件100中的动力传递单元125包括起动轮1251，动力积蓄单元123带动起动轮1251旋转以起动半轴式发动机110，起动轮1251在半轴式发动机110起动后与动力积蓄单元123脱离并与曲轴111一起旋转，起动轮1251设置在第一轴线X上，电机121和起动轮1251的投影至少部分重合。具体地，电机121可以位于起动轮1251的左侧、右侧、上侧、下侧360度空间的相对位置，只要满足电机121和起动轮1251在垂直于第一轴线X或第二轴线Y方向上的投影至少部分重合即可。
通过将电机121和起动轮1251的投影设置成至少部分重合，其不仅使得结构更为紧凑，而且使动力组件100的外观更为精巧。
在本实用新型的一个实施例中，参见图2或图5所示，起动轮1251上设有 叶片以使起动轮1251在旋转过程中产生冷却半轴式发动机110的气流，电机121位于气流经过的通道中。
通过将电机121设置在气流经过的通道中，可以对电机121工作过程中产生的热量进行有效散发，增强电机121性能，提高电机121寿命。
进一步地，参见图1或图4所示，动力组件100包括收容半轴式发动机110和发动机起动装置120的外壳130，外壳130靠近连杆组件400的部分设置进气口131，外壳130远离连杆组件400的部分设置出气口132。气流经过的通道在进气口131与出气口132之间形成，其中，气流经过的通道在图1或图4中用箭头指示的路径示意。
通过将进气口131设置在外壳130靠近连杆组件400的部分，将出气口132设置在外壳130远离连杆组件400的部分，气流经过的通道自园林工具前端向后端形成，避免出气口132出来的带热量的气流吹向正在操作园林工具的用户。
在本实用新型的一个实施例中，参见图1-3或图4-5所示，提供一种园林工具。具体地说，图1-3或图4-5示出的园林工具是一种打草机，需要说明的是，本实用新型的实施例并不限制于打草机上的应用，还可以应用于割灌机、吹风机、修枝机等其他类型的园林工具。
本实施例提供的园林工具包括：工作头组件200、驱动工作头组件200的动力组件100、供用户操作的操作组件300，以及将工作头组件200、操作组件300、动力组件100连接成能一起移动的整体的连杆组件400。
其中，工作头组件200可以包括挡板201、由动力组件100驱动而旋转的切割元件202。
动力组件100包括发动机110和发动机110发动机起动装置120。发动机 110可以是全轴式发动机，也可以是半轴式发动机，其中，
发动机110包括：曲轴111，于曲轴111的输出端，该曲轴111与连杆组件400连接以传输动力给工作头组件200。
发动机起动装置120包括：电机121，其由一直流电源122驱动；动力积蓄单元123，其通过一齿轮减速机构124沿着积蓄动力的方向传递电机121的动力；动力传递单元125，其将动力积蓄单元123积蓄的动力传递给发动机110的曲轴111。
在发动机110的起动阶段，电机121输出的扭矩经齿轮减速机构124传递给动力积蓄单元123，动力积蓄单元123将机械能转化为势能，当积蓄的势能达到阈值时，瞬间向动力传递单元125释放并使其旋转，动力传递单元125驱动曲轴111转动以起动发动机110。
其中，动力积蓄单元123、动力传递单元125与曲轴111设置在第一轴线X上，电机121和齿轮减速机构124位于曲轴111的输出端一侧，并且电机121设置在平行于第一轴线X的第二轴线Y上。
在本实用新型的一个实施例中，参见图2、图3所示，连杆组件400通过一连接器401与曲轴111连接，连接器401设置在第一轴线X上，电机121和连接器401的投影至少部分重合，并且所述电机121和所述半轴式发动机的主体的投影不重合。具体地，电机121可以位于连接器401的左侧、右侧、上侧、下侧360度空间的相对位置，只要满足电机121和连接器401在垂直于第一轴线X或第二轴线Y方向上的投影至少部分重合即可；并且，电机121相对于发动机的主体的左侧、右侧、上侧、下侧360度空间的位置，满足电机121和所述半轴式发动机的主体在垂直于第一轴线X或第二轴线Y方向上的投影不重 合。其中，所述半轴式发动机的主体可以是所述半轴式发动机上与所述发动机起动装置没有连接关系的部分。
由于在发动机110的曲轴111的输出端，曲轴111通过连接器401与连杆组件400连接以传输动力，通过将电机121和齿轮减速机构124设置于发动机110的曲轴111的输出端一侧，电机121所位于的第二轴线Y与动力积蓄单元123、动力传递单元125与曲轴111所位于的第二轴线Y平行，使动力组件100的设计变得更为紧凑成为可能，这样在整体上使园林工具的外观看上去精巧，值得惊叹的是，其并没有带来发动机110性能的牺牲，因而极大增强用户信心。通过将电机121和连接器401配置成投影至少部分重合，并且所述电机和所述发动机的主体的投影不重合，其使得动力组件100的结构更为紧凑，从而使园林工具的整体外观更为精巧，并且电机121远离发动机的主体，降低安全隐患发生几率。
在本实用新型的一个实施例中，参见图2或图5所示，起动轮1251上设有叶片以使起动轮1251在旋转过程中产生冷却半轴式发动机110的气流，电机121位于气流经过的通道中。
通过将电机121设置在气流经过的通道中，可以对电机121工作过程中产生的热量进行有效散发，增强电机121性能，提高电机121寿命。
进一步地，参见图1或图4所示，动力组件100包括收容半轴式发动机110和发动机起动装置120的外壳130，外壳130靠近连杆组件400的部分设置进气口131，外壳130远离连杆组件400的部分设置出气口132。气流经过的通道在进气口131与出气口132之间形成，其中，气流经过的通道在图1或图4中用箭头指示的路径示意。
通过将进气口131设置在外壳130靠近连杆组件400的部分，将出气口132设置在外壳130远离连杆组件400的部分，气流经过的通道自园林工具前端向后端形成，避免出气口132出来的带热量的气流吹向正在操作园林工具的用户。
注意，上述仅为本实用新型的较佳实施例及所运用技术原理。本领域技术人员会理解，本实用新型不限于这里所述的特定实施例，对本领域技术人员来说能够进行各种明显的变化、重新调整和替代而不会脱离本实用新型的保护范围。因此，虽然通过以上实施例对本实用新型进行了较为详细的说明，但是本实用新型不仅仅限于以上实施例，在不脱离本实用新型构思的情况下，还可以包括更多其他等效实施例，而本实用新型的范围由所附的权利要求范围决定。

Claims (10)

  1. 一种园林工具的动力组件，包括半轴式发动机和发动机起动装置，所述半轴式发动机通过其曲轴的输出端给园林工具输出动力，其特征在于，
    所述发动机起动装置包括：
    电机，其由一直流电源驱动；
    动力积蓄单元，其通过一齿轮减速机构沿着积蓄动力的方向传递所述电机的动力；
    动力传递单元，其将所述动力积蓄单元积蓄的动力传递给所述半轴式发动机的曲轴；
    其中，所述电机和所述齿轮减速机构设置于所述曲轴的输出端一侧，并且所述动力积蓄单元、所述动力传递单元与所述曲轴设置在第一轴线上，所述电机设置在平行于所述第一轴线的第二轴线上。
  2. 根据权利要求1所述的动力组件，其特征在于，所述动力传递单元包括起动轮，所述动力积蓄单元带动所述起动轮旋转以起动所述半轴式发动机，所述起动轮在所述半轴式发动机起动后与所述动力积蓄单元脱离并与所述曲轴一起旋转，所述起动轮设置在所述第一轴线上，所述电机和所述起动轮的投影至少部分重合。
  3. 根据权利要求1或2所述的动力组件，其特征在于，所述起动轮上设有叶片以使所述起动轮在旋转过程中产生冷却所述半轴式发动机的气流，所述电机位于所述气流经过的通道中。
  4. 一种园林工具，包括工作头组件、驱动所述工作头组件的动力组件、供用户操作的操作组件，以及将所述工作头组件、所述操作组件、所述动力组件连接成能一起移动的整体的连杆组件，其中，所述动力组件包括半轴式发动机 和发动机起动装置，其特征在于：
    所述半轴式发动机包括：
    曲轴，于所述曲轴的输出端，该曲轴与所述连杆组件连接以传输动力给所述工作头组件；
    所述发动机起动装置包括：
    电机，其由一直流电源驱动；
    动力积蓄单元，其通过一齿轮减速机构沿着积蓄动力的方向传递所述电机的动力；
    动力传递单元，其将所述动力积蓄单元积蓄的动力传递给所述半轴式发动机的曲轴；
    其中，所述电机和所述齿轮减速机构设置于所述曲轴的输出端一侧，并且所述动力积蓄单元、所述动力传递单元与所述曲轴设置在第一轴线上，所述电机设置在平行于所述第一轴线的第二轴线上。
  5. 根据权利要求4所述的园林工具，其特征在于，所述连杆组件通过一连接器与所述曲轴连接，所述连接器设置在所述第一轴线上，所述电机和所述连接器的投影至少部分重合，并且所述电机和所述半轴式发动机的主体的投影不重合。
  6. 根据权利要求4所述的园林工具，其特征在于，所述操作组件包括供用户操作的握持部，所述直流电源设置于所述握持部处，所述连杆组件通过一连接器与所述曲轴连接，所述连接器设置在所述第一轴线上，所述电机位于所述连接器的下方。
  7. 根据权利要求4所述的园林工具，其特征在于，所述动力传递单元包括 起动轮，所述动力积蓄单元带动所述起动轮旋转以起动所述半轴式发动机，所述起动轮在所述半轴式发动机起动后与所述动力积蓄单元脱离并与所述曲轴一起旋转，所述起动轮设置在所述第一轴线上，所述电机和所述起动轮的投影至少部分重合。
  8. 根据权利要求7所述的园林工具，其特征在于，所述起动轮上设有叶片以使所述起动轮在旋转过程中产生冷却所述半轴式发动机的气流，所述电机位于所述气流经过的通道中；所述动力组件包括收容所述半轴式发动机和所述发动机起动装置的外壳，所述外壳靠近所述连杆组件的部分设置进气口，所述外壳远离所述连杆组件的部分设置出气口，所述气流经过的通道在所述进气口与所述出气口之间形成。
  9. 一种园林工具，包括工作头组件、驱动所述工作头组件的动力组件、供用户操作的操作组件，以及将所述工作头组件、所述操作组件、所述动力组件连接成能一起移动的整体的连杆组件，其中，所述动力组件包括发动机和发动机起动装置，其特征在于：
    所述发动机包括：
    曲轴，于所述曲轴的输出端，该曲轴与所述连杆组件连接以传输动力给所述工作头组件；
    所述发动机起动装置包括：
    电机，其由一直流电源驱动；
    动力积蓄单元，其通过一齿轮减速机构沿着积蓄动力的方向传递所述电机的动力；
    动力传递单元，其将所述动力积蓄单元积蓄的动力传递给所述发动机的曲 轴；
    其中，所述电机和所述齿轮减速机构设置于所述曲轴的输出端一侧，并且所述动力积蓄单元、所述动力传递单元与所述曲轴设置在第一轴线上，所述电机设置在平行于所述第一轴线的第二轴线上；
    所述连杆组件通过一连接器与所述曲轴连接，所述连接器设置在所述第一轴线上，所述电机和所述连接器的投影至少部分重合，并且所述电机和所述发动机的主体的投影不重合。
  10. 根据权利要求9所述的园林工具，其特征在于，所述起动轮上设有叶片以使所述起动轮在旋转过程中产生冷却所述半轴式发动机的气流，所述电机位于所述气流经过的通道中；所述动力组件包括收容所述半轴式发动机和所述发动机起动装置的外壳，所述外壳靠近所述连杆组件的部分设置进气口，所述外壳远离所述连杆组件的部分设置出气口，所述气流经过的通道在所述进气口与所述出气口之间形成。
PCT/CN2020/115835 2019-10-17 2020-09-17 园林工具的动力组件及园林工具 WO2021077953A1 (zh)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6379471U (zh) * 1986-11-13 1988-05-25
US4887476A (en) * 1988-09-13 1989-12-19 Tanaka Kogyo Co., Ltd. Small engine provided with self starting motor
JPH0914112A (ja) * 1995-06-27 1997-01-14 Tanaka Kogyo Kk セルモータ付内燃機関
CN202007731U (zh) * 2011-01-25 2011-10-12 周辉 一种通用汽油机用电起动结构
CN206158907U (zh) * 2016-08-30 2017-05-10 重庆隆鑫发动机有限公司 发动机启动装置及其发动机
CN106973618A (zh) * 2016-01-15 2017-07-25 苏州科瓴精密机械科技有限公司 电启动引擎打草机
CN108798884A (zh) * 2017-05-02 2018-11-13 苏州科瓴精密机械科技有限公司 一种内燃机及园林工具

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6379471U (zh) * 1986-11-13 1988-05-25
US4887476A (en) * 1988-09-13 1989-12-19 Tanaka Kogyo Co., Ltd. Small engine provided with self starting motor
US4887476B1 (zh) * 1988-09-13 1992-03-17 Tanaka Kogyo
JPH0914112A (ja) * 1995-06-27 1997-01-14 Tanaka Kogyo Kk セルモータ付内燃機関
CN202007731U (zh) * 2011-01-25 2011-10-12 周辉 一种通用汽油机用电起动结构
CN106973618A (zh) * 2016-01-15 2017-07-25 苏州科瓴精密机械科技有限公司 电启动引擎打草机
CN206158907U (zh) * 2016-08-30 2017-05-10 重庆隆鑫发动机有限公司 发动机启动装置及其发动机
CN108798884A (zh) * 2017-05-02 2018-11-13 苏州科瓴精密机械科技有限公司 一种内燃机及园林工具

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