CN219844077U - riding lawn mower - Google Patents

Abstract

The application discloses a riding lawn mower, which includes: a lawn mower assembly, including a lawn mower element and a chassis that accommodates at least part of the lawn mower elements; a walking assembly, which at least includes a walking wheel and a walking motor that drives the walking wheel to rotate; The wheel includes a left running wheel and a right running wheel; a grass collecting pipe is connected to the chassis to guide grass clippings; a power supply device is configured to supply power to the walking motor; the projection of the grass collecting pipe in the first plane supporting the walking assembly is at least partially located Between the left traveling wheel and the right traveling wheel; the projection of the rotor of the traveling motor on the first plane is basically located within the projection of the traveling wheel on the first plane. This application saves the internal space of the fuselage by arranging the traveling motor in the traveling wheel, and provides more choices for the installation location of the grass collection pipe.

Description

riding lawn mower

Technical field

The present application relates to a riding device, and in particular to a riding lawn mower.

Background technique

As a garden tool, riding lawn mowing equipment is widely used in fields such as mowing lawns and vegetation. Compared with push lawn mowers, riding lawn mowers are more labor-saving and more efficient in cutting grass. On the market, riding lawn mowers usually use diesel as their energy supply, which not only makes a lot of noise and pollutes the environment, but also requires frequent replacement of wearing parts in the fuel system, resulting in increased maintenance costs. In addition, riding lawn mowers on the market usually use side discharge to collect grass clippings, so the side blind spots are large, bulky, and difficult to turn. However, when the grass collection pipe for collecting grass clippings is arranged in the middle, it will affect the arrangement of various components inside the whole machine, especially the space for the location of the traveling motor and the corresponding gearbox will be limited.

Utility model content

The purpose of this application is to provide a riding lawn mower that is small in size and light in weight and capable of collecting grass clippings. The riding lawn mower uses a power supply device to provide electrical energy and has better grass cutting and collecting capabilities. grass efficiency.

In order to achieve the above goals, this application adopts the following technical solution: a riding lawn mower, which is characterized in that it includes: a lawn mower assembly, including a lawn mower element and a chassis that accommodates at least part of the lawn mower element; a walking assembly, It at least includes a running wheel and a walking motor that drives the running wheel to rotate; the running wheel includes a left running wheel and a right running wheel; a grass collection pipe is connected to the chassis to guide grass clippings; a power supply device is configured to provide The walking motor supplies power; the projection of the grass collection pipe in the first plane supporting the walking assembly is at least partially located between the left running wheel and the right running wheel; the rotor of the walking motor is in the first plane. The projection is substantially within the projection of the running wheel on the first plane.

In some embodiments, the left running wheel includes a first left running wheel, and the diameter D1 of the first left running wheel is greater than or equal to 16 inches and less than or equal to 22 inches.

In some embodiments, the left running wheel includes a first left running wheel, and the tire width L of the first left running wheel is greater than or equal to 6 inches and less than or equal to 10 inches.

In some embodiments, the hub diameter D2 of the first left running wheel is greater than or equal to 6 inches and less than or equal to 10 inches.

In some embodiments, the traveling motor at least includes a first traveling motor and a second traveling motor; the first traveling motor is used to drive the left traveling wheel, and the second traveling motor is used to drive the right traveling wheel.

In some embodiments, the projection of the first traveling motor or the second traveling motor on the first plane does not overlap with the projection of the grass collecting pipe on the first plane.

In some embodiments, the traveling motor is a wheel hub motor, and the rotation speed of the wheel hub motor is less than or equal to 400 RPM.

In some embodiments, it also includes a seat for users to sit on, and in the front-to-back direction, the walking motor is at least partially disposed on the rear side of the seat.

In some embodiments, it also includes a power supply device that provides electrical energy for at least the walking motor; in the front and rear direction, the power supply device is at least partially located in front of the seat; the power supply device includes at least one battery pack, The battery pack is pluggably connected to the riding lawn mower.

A riding lawn mower, characterized in that it includes: a lawn mower assembly, which includes a lawn mower element and a chassis that accommodates at least part of the lawn mower element; and a walking assembly, which at least includes a walking wheel and a driving wheel that drives the walking wheel to rotate. A traveling motor; the traveling wheels include a left traveling wheel and a right traveling wheel; a grass collecting pipe connected to the chassis to guide grass clippings; a power supply device configured to supply power to the traveling motor; the grass collecting pipe is supported on The projection in the first plane of the traveling assembly is at least partially located between the left running wheel and the right running wheel; at least part of the traveling motor is disposed inside the running wheel.

Description of the drawings

Figure 1 is a measurement view of a riding lawn mower as a specific embodiment;

Figure 2 is a structural perspective view of the lawn mower assembly, grass collection pipe, walking assembly and frame of the riding lawn mower in Figure 1;

Figure 3 is a top view of the three-dimensional structure in Figure 2;

Figure 4 is the electrical schematic diagram between the power supply device, control circuit, traveling motor and traveling wheels;

FIG. 5 is an exploded view of the traveling motor and traveling wheels of the riding lawn mower in FIG. 1 .

Implementation

In order to make the technical problems solved by the present application, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only the technical solutions of the present application. Some examples, not all examples. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of protection of this application.

In the description of this application, unless otherwise explicitly stipulated and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body. ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood on a case-by-case basis.

In this application, unless otherwise explicitly stated and limited, the term "above" or "below" a first feature on a second feature may include direct contact between the first and second features, or may also include the first and second features. Not in direct contact but through additional characteristic contact between them. Furthermore, the terms "above", "above" and "above" a first feature on a second feature include the first feature being directly above and diagonally above the second feature, or simply mean that the first feature is higher in level than the second feature. “Below”, “under” and “under” the first feature is the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature is less horizontally than the second feature.

One of ordinary skill in the art will understand that relative terms used in connection with quantities or conditions (e.g., “about,” “approximately,” “substantially,” “substantially,” etc.) are intended to include the stated value and have the meaning indicated by the context (e.g., “about,” “approximately,” “substantially,” etc.) , the term includes at least the degree of error associated with the measurement of a specific value, the tolerance associated with a specific value (e.g. manufacturing, assembly, use, etc.). Such terms should also be considered to disclose a range defined by the absolute values of both endpoints. Relative terms may refer to plus or minus a certain percentage (eg, 1%, 5%, 10% or more) of the indicated value. Of course, numerical values not expressed in relative terms should be disclosed as specific values subject to tolerances. As shown in FIG. 1 , the riding lawn mower 100 disclosed in the present application is a lawn mower tractor. The riding lawn mower 100 can be operated by a user riding or standing on it to mow lawns and other vegetation. In this specification, the directions of front, rear, left, right, upper and lower are described as the directions shown in FIG. 1 . Specifically, when the user rides on the riding lawn mower 100 on the ground, it is defined that the direction the user is facing is the front, the direction the user is facing away from is the rear, the direction of the left hand side is the left, and the direction of the right hand side is the right. Square, the direction close to the ground is downward, and the direction away from the ground is upward.

As shown in FIGS. 1 to 5 , the riding lawn mower 100 includes: a lawn mower assembly 10 , a casing assembly 20 , a grass collecting mechanism 30 , a power supply device 40 , an operating assembly 50 , a walking assembly 60 , a frame 91 and a seat. Chair 92. The frame 91 basically extends in the front-to-back direction, and together with the casing assembly 20 constitutes the main body of the riding lawn mower 100 . The main body is at least used to install or support the lawn mower assembly 10 , the seat 92 , and the power supply device 40 . The power supply device 40 is used to provide energy to the lawn mower assembly 10, the walking assembly 60, etc., so that the riding lawn mower 100 can be used as an electric tool. Compared with fuel-based riding lawn mowers, the electric riding lawn mower 100 is more environmentally friendly and saves energy.

Specifically, the power supply device 40 is at least partially disposed on the front of the riding lawn mower 100 . Specifically, the power supply device 40 is located at least partially in front of the seat 92 in the front-to-back direction. The power supply device 40 includes a battery pack and a battery compartment housing for installing the battery pack. The battery pack is detachably installed in the battery compartment housing. The number of battery packs and battery compartments may be one or multiple. In some embodiments, the total energy of the power supply device 40 is greater than or equal to 0.5 kW·h and less than or equal to 6 kW·h. In some embodiments, the total energy of the power supply device 40 is greater than or equal to 1 kW·h and less than or equal to 5 kW·h. The total energy of the above-mentioned power supply device can be understood as the sum of the energy of all battery packs. The walking assembly 60 is used to support the frame 91 so that the riding lawn mower 100 can walk on the ground. Specifically, the vehicle frame 91 includes: longitudinal beams and cross beams. In some embodiments, the frame 91 includes first longitudinal beams 911 , second longitudinal beams 912 , first cross beams 913 and second cross beams 914 . Among them, the first longitudinal beam 911 is arranged on the left side of the seat 92 , and the second longitudinal beam 912 is arranged on the right side of the seat 92 . The extending directions of the first longitudinal beam 911 and the second longitudinal beam 912 are parallel to each other. The first cross member 913 is provided on the front side of the seat 92 . The first beam 913 is substantially located at the front end of the riding lawn mower 100 , and the second beam 914 is substantially located at the rear end of the riding lawn mower 100 . In this way, the first beam 913 and the second beam 914 also serve as bumpers to protect the front and rear ends of the riding lawn mower 100 from damage. The traveling assembly 60 includes a left traveling wheel and a right traveling wheel. The left running wheel includes a first left running wheel 611 and a second left running wheel 612 . The right running wheel includes a first right running wheel 621 and a second right running wheel 622 .

The lawn mower assembly 10 is used to output power to implement the functions of the riding lawn mower 100 . The lawn mowing assembly 10 serves as a power output component. In some embodiments, the lawn mowing assembly 10 includes a lawn mower element (not shown), a chassis 11 that accommodates at least part of the lawn mower element, and a lawn mower motor for driving the lawn mower element to rotate. In some embodiments, the lawn mower assembly 10 can also be detached from the riding lawn mower 100. At this time, the working accessory interface of the riding lawn mower 100 can be connected to other working accessories, such as a snow shoveling assembly. In this way, the riding lawn mower 100 is no longer just a riding lawn mower, but a riding vehicle that can perform different tasks depending on the connected working accessories. Different work accessory interfaces are used to match different work accessories, and the same work accessory interface can also match different work accessories.

The grass collecting mechanism 30 is used to collect grass clippings cut by the lawn mowing assembly 10 . The grass collecting mechanism 30 includes a receiving device 31 for receiving grass clippings and a grass collecting pipe 32 connected to the chassis 11 . The receiving device 31 can be detachably or movably installed on the riding lawn mower 100 . The receiving device 31 is used to collect grass clippings cut by the lawn mowing assembly 10 , and the grass collection pipe 32 is used to guide the grass clippings into the receiving device 31 . The grass collecting pipe 32 extends upward and rearward from the transverse middle of the rear portion of the chassis 11 to form a grass outlet 321 . The grass outlet 321 is communicated with the receiving device 31 and is used to transfer the grass cut by the lawn mowing element from the grass cutting assembly 10 to the receiving device 31 through the grass collecting pipe 32 and accumulate it in the receiving device 31 . The projection of the grass collection pipe 32 in the first plane 101 supporting the traveling assembly 60 is at least partially located between the left and right running wheels. Specifically, the grass collecting pipe 32 extends rearward between the first left running wheel 611 and the first right running wheel 621 .

The traveling assembly 60 also includes a traveling motor for driving the traveling wheels to travel. Since the grass collecting mechanism 30 of the riding lawn mower 100 in the present application is approximately located in the middle, the installation position of the walking motor needs to be reasonably arranged. In some embodiments, at least part of the traveling motor is disposed within the traveling wheel. In some embodiments, the projection of the rotor of the traveling motor on the first plane 101 is substantially located within the projection of the traveling wheel on the first plane 101 . Specifically, the traveling motor includes a first traveling motor 631 and a second traveling motor 632 . Among them, the first traveling motor 631 is used to drive the first left traveling wheel 611, and the second traveling motor 632 is used to drive the first right traveling wheel 621. The riding lawn mower 100 further includes a control circuit 70 electrically connected to the power supply device 40 for controlling the operation of the first traveling motor 631 and the second traveling motor 632 . In some embodiments, the control circuit 70 includes a first control circuit 71 electrically connected to the first traveling motor 631 and a second control circuit 72 electrically connected to the second traveling motor 632 . Of course, in some embodiments, the first traveling motor 631 and the second traveling motor 632 can also be controlled by the same control circuit.

In some embodiments, the projection of the first traveling motor 631 or the second traveling motor 632 on the first plane 101 does not overlap with the projection of the grass collection pipe 32 on the first plane 101 . Of course, in some embodiments, the first traveling motor 631 and the second traveling motor 632 are used to drive the first left traveling wheel 611 and the first right traveling wheel 621 respectively. Specifically, the first traveling motor 631 is built into the tire of the first left running wheel 611 and is used to drive the first left running wheel 611 to rotate around the rotation axis relative to the main machine, so that the riding lawn mower 100 moves relative to the ground. The first traveling motor 631 is installed to the first left traveling wheel 611 and fixed through the fixing member 611a. The second traveling motor 632 is built into the tire of the first right running wheel 621 and is used to drive the first right running wheel 621 to rotate around the rotation axis relative to the main machine, so that the riding lawn mower 100 moves relative to the ground. The first traveling motor 632 is installed to the first right traveling wheel 621 and fixed through a fixing member. In this embodiment, the traveling motor used to drive the traveling wheels to rotate is a hub motor. The hub motor can directly drive the running wheels to rotate, or it can be connected to a reduction device to drive the running wheels to rotate. Of course, in some embodiments, the traveling motor may also be a wheel motor, which is at least partially disposed in the traveling wheel. The advantage of using a wheel hub motor or a wheel edge motor is that integrating the motor into the running wheel can reserve a wider installation position for the grass collection pipe, and can also provide space for other components such as seat height adjustment, brake components and cutter discs. The height-adjusted components reserve more space for installation. On the other hand, locating the motor inside the running wheel not only effectively saves space, but also protects the motor from being hit by obstacles on the ground.

In some embodiments, the first traveling motor 631 and the second traveling motor 632 are used to drive the second left traveling wheel 612 and the second right traveling wheel 622 respectively. Of course, in some embodiments, the number of traveling motors may be four, respectively driving the four traveling wheels of the riding lawn mower.

In some embodiments, the total rated power of the walking motor is greater than or equal to 100W and less than or equal to 1000W, and may be, for example, 300W, 400W, 500W, 600W or 1000W. In some embodiments, the in-wheel motor is an external rotor motor, and the rotation speed of the in-wheel motor is less than or equal to 400 RPM. In some embodiments, the rotation speed of the hub motor is greater than or equal to 30 RPM and less than or equal to 120 RPM. In some embodiments, the rotation speed of the hub motor is greater than or equal to 50 RPM and less than or equal to 100 RPM. In some embodiments, the torque of the in-wheel motor is less than or equal to 35 N·m. Alternatively, the torque of the in-wheel motor is greater than or equal to 10 N·m and less than or equal to 25 N·m.

In some embodiments, the diameter D1 of the first left running wheel 611 is greater than or equal to 16 inches and less than or equal to 22 inches. For example, it can be 20 inches.

In some embodiments, the tire width LL of the first left running wheel 611 is greater than or equal to 6 inches and less than or equal to 10 inches. For example, it can be 7 inches or 8 inches.

In some embodiments, the hub diameter D2 of the first left running wheel 611 is greater than or equal to 6 inches and less than or equal to 10 inches, and may be, for example, 8 inches.

In some embodiments, the traveling speed of the first left running wheel 611 is less than or equal to 2m/s. Optionally, the traveling speed of the first left running wheel 611 is greater than or equal to 0.4m/s and less than or equal to 1.4m/s, for example, it can be 0.4m/s, 0.7m/s, 0.9m/s, 1.3m/s or 1.4m/s.

Note that the above are only the preferred embodiments of the present application and the technical principles used. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of the present application. Therefore, although the present application has been described in detail through the above embodiments, the present application is not limited to the above embodiments, and may also include more other equivalent embodiments without departing from the concept of the present application, and the present application The scope is determined by the scope of the appended claims.

Claims (10)

1. A riding lawn mower, characterized in that it includes: A mowing assembly comprising a mowing element and a chassis housing at least part of said mowing element; The traveling assembly at least includes a traveling wheel and a traveling motor that drives the traveling wheel to rotate; the traveling wheel includes a left traveling wheel and a right traveling wheel; A grass collection pipe is connected to the chassis to guide grass clippings; A power supply device configured to supply power to the traveling motor; The projection of the grass collection pipe in the first plane supporting the traveling assembly is at least partially located between the left and right running wheels; The projection of the rotor of the traveling motor on the first plane is substantially located within the projection of the traveling wheel on the first plane. 2. The riding lawn mower according to claim 1, wherein the left running wheel includes a first left running wheel, and the diameter D1 of the first left running wheel is greater than or equal to 16 inches and less than or equal to 22 inches. inch. 3. The riding lawn mower according to claim 1, wherein the left running wheel includes a first left running wheel, and the tire width L of the first left running wheel is greater than or equal to 6 inches and less than or equal to 10 inches. 4. The riding lawn mower according to claim 2 or 3, wherein the hub diameter D2 of the first left running wheel is greater than or equal to 6 inches and less than or equal to 10 inches. 5. The riding lawn mower according to claim 1, wherein the traveling motor includes at least a first traveling motor and a second traveling motor; the first traveling motor is used to drive the left traveling wheel, so The second traveling motor is used to drive the right traveling wheel. 6. The riding lawn mower according to claim 5, wherein the projection of the first traveling motor or the second traveling motor on the first plane is consistent with the projection of the grass collecting pipe on the first plane. Projections on a plane do not overlap. 7. The riding lawn mower according to claim 1, wherein the traveling motor is a hub motor, the hub motor is an external rotor motor, and the rotation speed of the hub motor is less than or equal to 400 RPM. 8. The riding lawn mower according to claim 1, further comprising a seat for a user to sit on, and the traveling motor is at least partially disposed on the rear side of the seat in the front and rear direction. 9. The riding lawn mower according to claim 8, further comprising a power supply device that provides electrical energy for at least the walking motor; in the front and rear direction, the power supply device is at least partially located on the seat. in front of the chair; the power supply device includes at least one battery pack, and the battery pack is pluggably connected to the riding lawn mower. 10. A riding lawn mower, characterized in that it includes: A mowing assembly comprising a mowing element and a chassis housing at least part of said mowing element; The traveling assembly at least includes a traveling wheel and a traveling motor that drives the traveling wheel to rotate; the traveling wheel includes a left traveling wheel and a right traveling wheel; A grass collection pipe is connected to the chassis to guide grass clippings; A power supply device configured to supply power to the traveling motor; The projection of the grass collection pipe in the first plane supporting the traveling assembly is at least partially located between the left and right running wheels; At least part of the traveling motor is disposed inside the traveling wheel.