CN113317044A

CN113317044A - Starting drive and lawn mower thereof

Info

Publication number: CN113317044A
Application number: CN202110748211.3A
Authority: CN
Inventors: 徐森淼
Original assignee: Yongkang Lanpo Industry And Trade Co ltd
Current assignee: ZHEJIANG DONGQIAO PRECISION MACHINERY Co.,Ltd.
Priority date: 2021-07-01
Filing date: 2021-07-01
Publication date: 2021-08-31

Abstract

The invention provides a starting device and a mower thereof, and relates to the technical field of engine starting equipment. The invention adopts the electric starting mode to replace the traditional manual pull rope starting mode, and overcomes the defects that the pull rope is easy to damage and the pull rope cannot continue to work after a fault occurs due to higher requirements on the physical strength, the stretching force, the stretching distance and the stretching skill of the operation in the manual pull rope starting mode.

Description

Starting drive and lawn mower thereof

Technical Field

The invention relates to the technical field of engine starting equipment, in particular to a starting device and a mower thereof.

Background

Mowers are also known as weed trimmers, lawnmowers, lawn trimmers, and the like. At present, the mower is widely used for urban garden management and maintenance, household courtyards and farms, is mainly used for trimming lawns, vegetations and the like, and consists of a cutter head, an engine, blades, handrails and a control part. The engine is the most important component of the mower, and how to start the mower is very important.

The traditional engine starting mode generally adopts a manual pull rope starting mode, the requirements on the physical strength, the stretching force, the stretching distance and the stretching skill of the operation are high, and the pull rope is easy to damage, namely, the pull rope cannot continue to work after a fault occurs.

Therefore, how to overcome the defects caused by the mode of starting the engine by adopting the manual pull rope in the prior art becomes a technical problem to be solved urgently by the technical personnel in the field.

Disclosure of Invention

In view of the above, an object of the present invention is to provide a starting device, so as to solve the technical problems that in the prior art, when a manual pull rope is used to start an engine of a lawn mower, the pull rope is easily damaged due to high requirements on the physical strength of operation, the pulling force, the pulling distance and the pulling skill, and the lawn mower cannot continue to work after a failure occurs.

The invention also aims to provide a mower comprising the starting device.

In order to achieve one of the purposes, the invention provides a starting device which comprises a driving motor and a gear transmission mechanism in driving connection with the driving motor, wherein the gear transmission mechanism is used for driving an engine of a mower to start and stop, and the driving motor is electrically connected with a program control module for controlling the driving motor to start and stop.

According to a preferred embodiment, the drive motor is a brushless motor.

According to a preferred embodiment, a rotating shaft which rotates synchronously with the brushless motor is arranged at the tail end of the brushless motor, a first gear is sleeved on the rotating shaft, and the brushless motor is started to drive the first gear to rotate through the rotating shaft.

According to a preferred embodiment, the gear transmission mechanism comprises a reduction gear and a transition gear, the transition gear is meshed with the first gear and the reduction gear at the same time, a one-way bearing is arranged in the reduction gear, and the reduction gear drives the engine of the mower to start and stop through the one-way bearing.

According to a preferred embodiment, the one-way bearing is nested within the reduction gear and is integrally formed with the reduction gear.

According to a preferred embodiment, the program control module comprises a starting module and a control module, the starting module is electrically connected with the control module, and the control module is electrically connected with the brushless motor.

According to a preferred embodiment, the brushless motor further comprises a power supply, the power supply is installed between the control module and the brushless motor, and the control module controls the starting and stopping of the brushless motor by controlling the power supply.

According to a preferred embodiment, the power supply is mounted laterally above the brushless motor and is disposed adjacent to the gear transmission, and the power supply is detachably mounted.

According to a preferred embodiment, the activation module is provided as a switch button.

In order to achieve the second purpose, the invention provides a mower which comprises any one of the starting devices and an internal engine, wherein the starting device is used for controlling the starting and stopping of the engine.

The starting device provided by the invention has the following technical effects:

the starting device can be used for starting a mower, and particularly used for starting an engine of the mower, and comprises a driving motor and a gear transmission mechanism, wherein the driving motor is in driving connection with the gear transmission mechanism, namely the driving motor provides power for the gear transmission mechanism to drive the engine to start, the driving motor is electrically connected with a program control module, and the program control module can directly control the driving motor to start and stop so as to achieve the purpose of indirectly controlling the engine to start and stop.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic perspective view of an actuating device according to an embodiment of the present invention;

FIG. 2 is a front view of the activation device of FIG. 1;

FIG. 3 is an exploded view of the starting device of FIG. 1;

FIG. 3a is an enlarged view at A in FIG. 3;

FIG. 3B is an enlarged view at B in FIG. 3;

FIG. 3C is an enlarged view at C in FIG. 3;

FIG. 4 is a schematic perspective view of the actuator of FIG. 1 without a housing;

FIG. 5 is a schematic perspective view of the gear assembly and drive motor of the starting apparatus of FIG. 1;

fig. 6 is a front view of the gear assembly and drive motor of fig. 5.

Wherein, fig. 1-6:

11. a battery protective case; 12. an outer shell of the electric adjusting equipment; 13. a motor protective housing; 14. a fixing plate;

2. a drive motor; 21. a rotating shaft; 22. a first gear;

3. a gear transmission mechanism; 31. a transition gear; 32. a reduction gear; 33. a one-way bearing; 41. a starting module; 42. a control module; 43. and (4) a power supply.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.

As mentioned in the background of the invention, the engine start in the prior art is generally started by using a manual pull rope, which has high requirements on the physical strength, the pulling force, the pulling distance and the pulling skill of the operation, and the pull rope is easy to damage, i.e. the pull rope cannot continue to work after a fault occurs.

Based on the above, the invention provides a starting device, which can be used for starting a mower, in particular to starting an engine of the mower, and comprises a driving motor and a gear transmission mechanism, wherein the driving motor is in driving connection with the gear transmission mechanism, namely, the driving motor provides power for the starting of the engine driven by the gear transmission mechanism, the driving motor is electrically connected with a program control module, and the program control module can directly control the starting and stopping of the driving motor so as to achieve the purpose of indirectly controlling the starting and stopping of the engine.

The technical scheme of the invention is explained in detail in the following with specific attached figures 1-6.

The starting device provided by the invention can be used for a mower, can be used for a two-stroke and four-stroke small gasoline engine, and can also be used for other types of gasoline engines.

As shown in fig. 1 to 6, the power supply protection device includes a driving motor 2, a gear transmission mechanism 3 and a program control module, the driving motor 2, the gear transmission mechanism 3 and the program control module are all located inside a casing, the casing includes a battery protection casing 11 and an electrical tilt device casing 12, the battery protection casing 11 is located above the electrical tilt device protection casing, the battery protection casing 11 mainly serves to protect a power supply 43, and the electrical tilt device protection casing mainly serves to protect other devices of a starting apparatus.

The driving motor 2 is in driving connection with the gear transmission mechanism 3, namely the driving motor 2 provides power for the rotary motion of the gear transmission mechanism 3, the gear transmission mechanism 3 is directly used for driving the engine of the mower to start and stop, and meanwhile, in order to control whether the gear transmission mechanism 3 is started or not, the driving motor 2 is electrically connected with the program control module, namely the program control module can directly control the starting and stopping of the driving motor 2, so that the purpose of indirectly controlling the starting and stopping of the engine is achieved.

The drive motor 2 of the present invention is preferably a brushless motor, which has a longer life than a brush motor (i.e., a carbon brush motor) of the prior art as the drive motor 2.

The difference between a brush motor and a brushless motor is whether a conventional brush-commutator is provided. The commutation of brushed dc motors has been accomplished by contacting graphite brushes with an annular commutator mounted on the rotor.

The brushless motor feeds the position of the rotor back to the control circuit through the Hall sensor, so that the brushless motor can acquire the accurate time of the phase commutation of the motor. Most brushless motor manufacturers produce motors with three hall effect position sensors. The brushless motor has no brush and no related interface, so the brushless motor is cleaner, has less noise, virtually has no need of maintenance and has longer service life.

As shown in fig. 5 and 6, the brushless motor is externally sleeved with a motor protection housing 13, which has the same shape as the brushless motor and is used for protecting the brushless motor, a rotating shaft 21 is disposed at the end of the brushless motor, the rotating shaft 21 can rotate synchronously with the brushless motor, a first gear 22 is sleeved on the rotating shaft 21, the first gear 22 is used as a part of the brushless motor, and when the brushless motor is started, the rotating shaft 21 can drive the first gear 22 to rotate, that is, power is transmitted outwards through the first gear 22.

As shown in fig. 5 and 6, the gear transmission mechanism 3 includes a reduction gear 32 and a transition gear 31, the transition gear 31 is meshed with the first gear 22 and the reduction gear 32 simultaneously, the reduction gear 32 is located above the transition gear 31, the first gear 22 is located below the transition gear 31, that is, when the first gear 22 rotates under the driving of the brushless motor, the transmission force can be transmitted to the reduction gear 32 through the transition gear 31, a one-way bearing 33 is arranged in the reduction gear 32, and the reduction gear 32 drives the engine of the mower to start and stop through the one-way bearing 33.

It is particularly emphasized that, as shown in fig. 3, fig. 3b and fig. 3a, the one-way bearing 33 is nested in the reduction gear 32, and the one-way bearing 33 is directly formed on the reduction gear 32 by CNC machining, that is, the one-way bearing 33 is integrally formed with the reduction gear 32, the size of the one-way bearing 33 is larger than that of the one-way bearing 33 of a general starting device, the one-way bearing 33 has larger size, larger torque and is not easy to be damaged after long-time starting, and the effect is difficult to achieve by a conventional one-way bearing.

It should be noted that, as shown in fig. 3c, 5 and 6, the reduction gear 32, the transition gear 31 and the first gear 22 are all mounted through the fixed plate 14 which is vertically mounted.

When the engine starting device is used, the one-way bearing 33 is sleeved at one end of the transmission shaft, the other end of the transmission shaft is installed on the engine, the one-way bearing 33 is in driving connection with the engine through the transmission shaft, and the one-way rotation of the one-way bearing 33 drives the one-way rotation of the transmission shaft, so that the engine is started.

More specifically, as shown in FIG. 4, the program control modules include a start module 41 and a control module 42.

It is within the scope of the present invention that the activating module 41 is preferably, but not limited to, a switch button, such as a sound sensor or a light sensor, to activate the activating device, and the present invention is not limited to the specific form of the activating module 41.

As shown in fig. 4, the control module 42 is disposed on the left side of the switch button, the starting module 41 is electrically connected to the control module 42, the control module 42 is electrically connected to the brushless motor, that is, the switch button receives a start signal, and transmits the start signal to the control module 42, and the control module 42 processes the start signal to control the start and stop of the brushless motor.

As shown in fig. 4, in order to provide the driving force for the brushless motor, a power supply 43 is further included, and the power supply 43 is installed between the control module 42 and the brushless motor, specifically, above the control module 42, and is electrically connected to both the control module 42 and the brushless motor, that is, the control module 42 controls the start and stop of the brushless motor by controlling the conduction between the power supply 43 and the brushless motor.

Power supply 43 installs in brushless motor's side top, and sets up adjacent with gear drive 3, and the mode of side top installation can make power supply 43 be difficult to drop, conveniently pulls out and inserts, and power supply 43 demountable installation simultaneously, not the time spent takes off power supply 43 to inside power supply 43 arranges starting drive in for a long time, arouses starting drive's damage.

The power supply 43 is preferably a lithium battery.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A starting device is characterized by comprising a driving motor and a gear transmission mechanism in driving connection with the driving motor, wherein the gear transmission mechanism is used for driving an engine of a mower to start and stop, and the driving motor is electrically connected with a program control module for controlling the driving motor to start and stop.

2. The starting device as claimed in claim 1, wherein said drive motor is a brushless motor.

3. The starting device according to claim 2, wherein a rotating shaft is provided at an end of the brushless motor for rotating synchronously with the brushless motor, a first gear is sleeved on the rotating shaft, and the brushless motor is started to drive the first gear to rotate through the rotating shaft.

4. The starting device as claimed in claim 3, wherein the gear transmission mechanism comprises a reduction gear and a transition gear, the transition gear is meshed with the first gear and the reduction gear at the same time, a one-way bearing is arranged in the reduction gear, and the reduction gear drives the starting and stopping of the engine of the mower through the one-way bearing.

5. The starting device as set forth in claim 4 wherein said one-way bearing is nested within and integrally formed with said reduction gear.

6. The starting device according to claim 2, wherein the program control module comprises a starting module and a control module, the starting module is electrically connected with the control module, and the control module is electrically connected with the brushless motor.

7. The starting apparatus according to claim 6, further comprising a power supply installed between the control module and the brushless motor, wherein the control module controls starting and stopping of the brushless motor by controlling the power supply.

8. The starting device as claimed in claim 7, wherein said power supply is mounted laterally above said brushless motor and disposed adjacent to said gear assembly, said power supply being removably mounted.

9. The activation device of claim 6, wherein the activation module is configured as a switch button.

10. A lawnmower comprising the starting apparatus according to any one of claims 1 to 9, and further comprising an internal engine, wherein the starting apparatus is configured to control the starting and stopping of the engine.