Electric mowing vehicle provided with multiple sets of cutters

Abstract

The electric mowing vehicle comprises a vehicle frame, two driving wheel sets, a plurality of cutter sets and an electric control device, the two driving wheel sets are arranged on the left side and the right side of the vehicle frame and used for driving the vehicle frame to move front and back, and the cutter sets are arranged on the vehicle frame at intervals. The cutter set comprises a swing arm connected to the vehicle frame, a first motor fixedly connected to the swing arm and a cutter connected to an output shaft of the first motor in a transmission mode, the cutter set is detachably connected with the vehicle frame and can swing relative to the vehicle frame, and the driving wheel set and the cutter set are controlled by an electric control device. According to the electric mowing vehicle, the vehicle frame, the driving wheel set and the cutter sets are arranged, each cutter set is provided with the first motor and the cutting knife driven by the first motor, and the cutting knives are driven by the first motors, so that the multiple cutter sets can be arranged on the same vehicle frame, the mowing range is expanded, and the mowing efficiency is improved. And the cutter group can swing relative to the frame, so that the cutting angle of the cutter is adjustable, a certain buffering effect is achieved, and breakage is avoided.

Description

Technical Field

[0001] The utility model relates to a lawn mower, in particular to an electric lawn mower equipped with multiple sets of cutters. Background Art

[0002] A lawn mower is a device for cutting grass on a field or lawn. A lawn mower is known to be composed of a traveling mechanism, an internal combustion engine and a blade. The traveling mechanism is driven forward by the internal combustion engine, and the blade is arranged on the output shaft of the internal combustion engine and driven to rotate by the internal combustion engine. It has a simple structure and is easy to implement. However, since the blades of existing lawn mowers are driven by an internal combustion engine, due to the structural characteristics of the internal combustion engine, one internal combustion engine can only be equipped with one set of blades, resulting in a limited number of blades, a narrow mowing range, and low mowing efficiency. Utility Model Content

[0003] The utility model aims to provide an electric lawn mower equipped with multiple sets of cutters to solve the problems of limited mowing range and low mowing efficiency of existing lawn mowers.

[0004] The utility model is realized by the following technical solutions:

[0005] An electric lawn mower equipped with multiple sets of cutters comprises a frame, two driving wheel sets, a plurality of cutter sets and an electronic control device, wherein the two driving wheel sets are arranged on the left and right sides of the frame for driving the frame to move forward and backward, the plurality of cutter sets are arranged at intervals on the frame, the cutter set comprises a swing arm connected to the frame, a first motor fixedly connected to the swing arm and a cutting knife transmission-connected to an output shaft of the first motor, the cutter set is detachably fixedly connected to the frame and can swing relative to the frame with the connection between the swing arm and the frame as the axis, and the driving wheel set and the cutter set are controlled by the electronic control device.

[0006] Furthermore, the frame has a mounting rod, the swing arm is rotatably connected to the frame through the mounting rod, the mounting rod is provided with a connecting shaft connecting the swing arm to the mounting rod, the connecting shaft is provided with a first fastener locking the swing arm to the mounting rod, and the swing arm can swing relative to the frame around the axis of the connecting shaft.

[0007] Furthermore, the mounting rod has a mounting groove for the swing arm to be inserted into, and the connecting shaft passes through the mounting groove and is connected to the swing arm.

[0008] Furthermore, one of the mounting rod and the swing arm is provided with a through hole for the connecting shaft to pass through, and the through holes are multiple and are spaced apart from each other.

[0009] Furthermore, an adjusting rod is connected to the mounting rod and the swing arm, and the adjusting rod has a plurality of adjusting holes arranged at intervals in the length direction thereof. One end of the adjusting rod is rotatably connected to the swing arm, and the other end is detachably fixedly connected to the mounting rod via a second fastener inserted through the adjusting hole.

[0010] Furthermore, the first motor and the cutting knife are arranged up and down, with the first motor at the top and the cutting knife at the bottom, and the swing arm is provided with a baffle on one side of the cutting knife, the baffle has a front stop portion located in front of the cutting knife, the orthographic projection of the cutting knife in the front-to-back direction at least partially falls on the front stop portion, and the orthographic projection of the first motor in the front-to-back direction at least partially falls on the front stop portion.

[0011] Furthermore, the baffle has a side stop located on the left and / or right side of the cutting knife, the orthographic projection of the cutting knife in the left and right directions at least partially falls on the side stop, and the orthographic projection of the first motor in the left and right directions at least partially falls on the side stop.

[0012] Furthermore, the plurality of tool groups are arranged at intervals on the frame and are symmetrically arranged about a center line in the front-rear direction of the frame.

[0013] Furthermore, the driving wheel group includes a second motor, a driving wheel, a driven wheel, a tensioning wheel and a track, the second motor, the driving wheel, the driven wheel and the tensioning wheel are arranged on the frame, the track is tensioned on the driving wheel, the driven wheel and the tensioning wheel, and the driving wheel is driven by the second motor.

[0014] Furthermore, the electronic control device includes a battery, a generator and a control box arranged on the frame, the control box is electrically connected to the battery and the generator respectively, and the control box is electrically connected to a plurality of the first motors and the second motors respectively.

[0015] The advantage of this technical solution is that the electric lawn mower is configured as a frame, two drive wheel groups on the frame that drive the frame to move forward and backward relative to the frame, and a plurality of tool groups that are detachably connected to the frame and can swing relative to the frame. The tool group is configured as a swing arm movably connected to the frame, a first motor fixed to the swing arm, and a cutting knife connected to the output shaft of the first motor. Since the cutting knife is driven by the first motor, multiple tool groups can be configured on the same frame, thereby expanding the mowing range and improving the mowing efficiency. In addition, since the tool group is detachably connected to the frame and can swing relative to the frame with the connection between the swing arm and the frame as the axis, the mowing angle of the cutting knife is adjustable and it is easy to disassemble and assemble with the frame, and it can play a certain buffering role to prevent the swing arm from breaking at the connection between it and the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for describing the embodiments.

[0018] Figure 1 is a three-dimensional diagram of an electric lawn mower equipped with multiple sets of cutting tools in a first direction according to an embodiment;

[0019] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0020] Figure 3 yes Figure 1 A partial enlarged view of point B in the middle;

[0021] Figure 4 is a three-dimensional diagram of the electric lawn mower equipped with multiple sets of cutting tools in the embodiment disclosed in the second direction;

[0022] Figure 5 is a top view of an electric lawn mower equipped with multiple sets of cutters according to an embodiment;

[0023] Figure 6 The figure is a side view of an electric lawn mower equipped with multiple sets of cutters according to an embodiment disclosed in the invention. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example: Figure 1-6As shown, the electric lawn mower with multiple sets of cutters installed includes a frame 1, two driving wheel groups 2, a plurality of cutter groups 3 and an electronic control device 6. The two driving wheel groups 2 are respectively arranged on the left and right sides of the frame 1 for driving the frame 1 to move forward and backward. The plurality of cutter groups 3 are arranged at intervals on the frame 1. The cutter group 3 includes a swing arm 301 movably connected to the frame 1, a first motor 302 fixedly connected to the swing arm 301 and a cutting knife 303 transmission-connected to the output shaft of the first motor 302. The swing arm 301 is detachably fixedly connected to the frame 1 and can be swung relative to the frame 1 with the connection between the swing arm 301 and the frame 1 as the axis to adjust the cutting angle of the cutting knife 303. The driving wheel group 2 and the cutter group 3 are controlled by the electronic control device 6. The utility model provides an electric lawn mower equipped with multiple sets of cutters to solve the problems of limited mowing range and low mowing efficiency of existing mowers. The electric lawn mower is mainly configured into a frame 1, two driving wheel groups 2 on the frame 1 that drive the frame 1 to move forward and backward relative to the frame 1, and a plurality of cutter groups 3 that are detachably connected to the frame 1 and can swing relative to the frame 1. The cutter group 3 is configured into a swing arm 301 movably connected to the frame 1, a first motor 302 fixedly connected to the swing arm 301, and a cutter 303 transmission-connected to the output shaft of the first motor 302. Since the cutter 303 is driven by the first motor 302, multiple cutter groups 3 can be configured on the same frame 1, thereby expanding the mowing range and improving the mowing efficiency. Furthermore, since the tool set 3 is detachably connected to the frame 1 and can swing relative to the frame 1 with the connection between the swing arm 301 and the frame 1 as the axis, the mowing angle of the cutter 303 is adjustable and it is easy to assemble and disassemble from the frame 1. It can also play a certain buffering role to prevent the swing arm 301 from breaking at the connection between it and the frame 1, and it is easy to fold during transportation to save transportation space.

[0026] In the embodiment of the utility model, the vehicle frame 1 has a mounting rod 101, and the swing arm 301 is rotatably connected to the vehicle frame 1 at the mounting rod 101. The mounting rod 101 is provided with a connecting shaft 4 for connecting the swing arm 301 to the mounting rod 101, and the connecting shaft 4 is provided with a first fastener 5 for locking the swing arm 301 to the mounting rod 101, and the swing arm 301 can swing relative to the vehicle frame 1 around the axis of the connecting shaft 4. Specifically, the first fastener 5 is a nut threadedly connected to the connecting shaft 4. Since the swing arm 301 is connected to the mounting rod 101 through the connecting shaft 4, and is locked to the mounting rod 101 through the first fastener 5 threadedly connected to the connecting shaft 4, the swing arm 301 can be rotated relative to the vehicle frame 1 to adjust the angle, and can be fixed after the angle adjustment is completed, and the structure is simple and easy to implement.

[0027] In the embodiment of the utility model, the mounting rod 101 has a mounting slot 102 for inserting the swing arm 301, and the connecting shaft 4 passes through the mounting slot 102 and is connected to the swing arm 301. Since the mounting rod 101 has a mounting slot 102 for inserting the swing arm 301, and the connecting shaft 4 passes through the mounting slot 102 and is connected to the swing arm 301, the swing arm 301 and the mounting rod 101 are assembled stably.

[0028] In the embodiment of the utility model, one of the mounting rod 101 and the swing arm 301 is provided with a through hole 100 for the connecting shaft 4 to pass through, and there are a plurality of through holes 100, which are arranged at intervals up and down. Since one of the mounting rod 101 and the swing arm 301 has a plurality of through holes 100 arranged at intervals up and down for the connecting shaft 4 to pass through, the relative position of the swing arm 301 and the mounting rod 101 is adjustable, that is, the distance of the cutting knife 303 from the ground is adjustable, and the use is flexible and convenient.

[0029] In the embodiment of the utility model, the mounting rod 101 and the swing arm 301 are connected with an adjusting rod 110, and the adjusting rod 110 has a plurality of adjusting holes 111 arranged at intervals in the length direction thereof. One end of the adjusting rod 110 is rotatably connected to the swing arm 301, and the other end is detachably fixedly connected to the mounting rod 101 through a second fastener 112 inserted in the adjusting hole 111. Specifically, the second fastener 112 is a bolt. The above arrangement is achieved by arranging the adjusting rod 110 on the mounting rod 101 and the swing arm 301, and allowing one end of the adjusting rod 110 to be rotatably connected to the swing arm 301, and the other end to be detachably fixedly connected to the mounting rod 101 through a second fastener 112 inserted in the adjusting hole 111. By inserting the second fastener 112 in different adjusting holes 111, the angle between the mounting rod 101 and the swing arm 301 is adjusted, thereby adjusting the cutting angle of the cutting knife 303, and after the angle is adjusted to the right position, it plays a supporting role to limit the swing of the swing arm 301.

[0030] In an embodiment of the utility model, the first motor 302 and the cutting knife 303 are arranged up and down, the first motor 302 is on the top, and the cutting knife 303 is on the bottom. The swing arm 301 is provided with a baffle 304 on one side of the cutting knife 303, and the baffle 304 has a front stop portion 305 located in front of the cutting knife 303. The orthographic projection of the cutting knife 303 in the front-to-back direction at least partially falls on the front stop portion 305, and the orthographic projection of the first motor 302 in the front-to-back direction at least partially falls on the front stop portion 305. Since the swing arm 301 is provided with a baffle 304 on one side of the cutting knife 303, the baffle 304 has a front stop portion 305 located in front of the cutting knife 303, the orthographic projection of the cutting knife 303 in the front-to-back direction at least partially falls on the front stop portion 305, and the orthographic projection of the first motor 302 in the front-to-back direction at least partially falls on the front stop portion 305. Therefore, when the frame 1 moves from rear to front, it is prevented that the cut grass is entangled on the output shaft of the cutting knife 303 or the first motor 302, or that debris (such as stones) causes impact damage to the cutting knife 303 or the first motor 302.

[0031] In the embodiment of the utility model, the baffle 304 has a side stop 306 located on the left and / or right side of the cutter 303, and the orthographic projection of the cutter 303 in the left and right directions at least partially falls on the side stop 306, and the orthographic projection of the first motor 302 in the left and right directions at least partially falls on the side stop 306. Since the baffle 304 has the side stop 306 located on the left and / or right side of the cutter 303, when the frame 1 moves from rear to front, it is prevented that the cut grass is entangled on the output shaft of the cutter 303 or the first motor 302, or that debris (such as stones) causes impact damage to the cutter 303 or the first motor 302.

[0032] In the embodiment of the utility model, a plurality of tool groups 3 are arranged at intervals on the vehicle frame 1 and are symmetrically arranged about the center line of the front-rear direction of the vehicle frame 1. Since the plurality of tool groups 3 are arranged at intervals on the vehicle frame 1 and are symmetrically arranged about the center line of the front-rear direction of the vehicle frame 1, the arrangement of the plurality of tool groups 3 on the vehicle frame 1 is reasonable, the cutting range is wide and the cutting is uniform, and it is also conducive to the stable movement of the vehicle frame 1.

[0033] In the embodiment of the utility model, the two driving wheel groups 2 include a left wheel group 201 and a right wheel group 202, and the plurality of tool groups 3 include a left tool group 307, a right tool group 308, a front tool group 309, and a middle tool group 310. The left tool group 307 is located on the left side of the left wheel group 201, the right tool group 308 is located on the right side of the right wheel group 202, the middle tool group 310 is located between the two driving wheel groups 2, the front tool group 309 is located in front of the two driving wheel groups 2, the left tool group 307 and the right tool group 308 are symmetrically arranged about the center line of the front-to-back direction of the frame 1, there are a plurality of front tool groups 309, and the plurality of front tool groups 309 are symmetrically arranged about the center line of the front-to-back direction of the frame 1, and there are a plurality of middle tool groups 310, and the plurality of middle tool groups 310 are symmetrically arranged about the center line of the front-to-back direction of the frame 1. Since the plurality of tool groups 3 adopt the above arrangement, the electric lawn mower has a wider cutting range and uniform cutting, and is conducive to the stable movement of the frame 1.

[0034] In the embodiment of the utility model, the driving wheel group 2 includes a second motor 203, a driving wheel 204, a driven wheel 205, a tensioning wheel 206 and a track 207. The second motor 203, the driving wheel 204, the driven wheel 205 and the tensioning wheel 206 are arranged on the frame 1. The track 207 is tensioned on the driving wheel 204, the driven wheel 205 and the tensioning wheel 206. The driving wheel 204 is driven by the second motor 203. Specifically, when the second motor 203 drives the driving wheel 204 to rotate, the track 207 tensioned on the driving wheel 204, the driven wheel 205 and the tensioning wheel 206 rotates to realize the driving of the frame 1. Among them, the driving wheel group 2 adopts the above structure, which has the advantages of simple structure and stable driving.

[0035] In the embodiment of the utility model, the electric control device 6 is arranged on the frame 1, and the electric control device 6 includes a battery 601, a generator (not shown in the figure) and a control box (not shown in the figure) arranged on the frame 1, the generator is electrically connected to the battery 601 and the control box respectively, and the battery 601 is electrically connected to the first motor and the second motor respectively. The battery 601, the generator, the first motor and the second motor are controlled by the control box. The above arrangement realizes the electric control of the driving wheel group 2 and the plurality of tool groups 3 through the electric control device 6 arranged on the frame 1. Among them, the electric control device 6 is an existing electric control device.

[0036] It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the "first" information may also be referred to as the "second" information, and similarly, the "second" information may also be referred to as the "first" information. In addition, the terms "center of a circle", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] As described above, one or more implementation methods are provided in combination with specific contents, and the specific implementation of the utility model is not limited to these descriptions. Any method, structure, etc. similar to or identical to the method, structure, etc. of the utility model, or some technical deductions or replacements made on the premise of the concept of the utility model should be regarded as the protection of the utility model.

Claims

1. An electric lawn mower equipped with multiple sets of cutters, characterized in that: The utility model comprises a frame, two driving wheel groups, a plurality of tool groups and an electronic control device, wherein the two driving wheel groups are arranged on the left and right sides of the frame for driving the frame to move forward and backward, the plurality of tool groups are arranged at intervals on the frame, the tool group comprises a swing arm connected to the frame, a first motor fixedly connected to the swing arm and a cutting knife transmission-connected to an output shaft of the first motor, the tool group is detachably fixedly connected to the frame and can swing relative to the frame with the connection between the swing arm and the frame as the axis, and the driving wheel group and the tool group are controlled by the electronic control device.

2. The electric lawn mower equipped with multiple sets of cutters according to claim 1, characterized in that: The frame has a mounting rod, and the swing arm is rotatably connected to the frame through the mounting rod. A connecting shaft is provided on the mounting rod to connect the swing arm to the mounting rod, and a first fastener is provided on the connecting shaft to lock the swing arm to the mounting rod. The swing arm can swing relative to the frame around the axis of the connecting shaft.

3. The electric lawn mower equipped with multiple sets of cutters according to claim 2, characterized in that: The mounting rod has a mounting groove for the swing arm to be inserted into, and the connecting shaft passes through the mounting groove and is connected to the swing arm.

4. The electric lawn mower equipped with multiple sets of cutters according to claim 2, characterized in that: One of the mounting rod and the swing arm is provided with a through hole for the connecting shaft to pass through, and the through holes are multiple and are spaced apart from each other.

5. The electric lawn mower equipped with multiple sets of cutters according to claim 2, characterized in that: An adjusting rod is connected to the mounting rod and the swing arm, and the adjusting rod has a plurality of adjusting holes arranged at intervals in the length direction thereof. One end of the adjusting rod is rotatably connected to the swing arm, and the other end is detachably fixedly connected to the mounting rod via a second fastener passing through the adjusting hole.

6. The electric lawn mower equipped with multiple sets of cutters according to claim 1, characterized in that: The first motor and the cutting knife are arranged up and down, with the first motor being on the top and the cutting knife being on the bottom. The swing arm is provided with a baffle on one side of the cutting knife, and the baffle has a front stop portion located in front of the cutting knife. The orthographic projection of the cutting knife in the front-to-back direction at least partially falls on the front stop portion, and the orthographic projection of the first motor in the front-to-back direction at least partially falls on the front stop portion.

7. The electric lawn mower equipped with multiple sets of cutters according to claim 6, characterized in that: The baffle has a side stop located on the left and / or right side of the cutting knife, the orthographic projection of the cutting knife in the left and right directions at least partially falls on the side stop, and the orthographic projection of the first motor in the left and right directions at least partially falls on the side stop.

8. The electric lawn mower equipped with multiple sets of cutters according to claim 1, characterized in that: The plurality of tool groups are arranged on the frame at intervals and symmetrically about a center line in a front-rear direction of the frame.

9. The electric lawn mower equipped with multiple sets of cutters according to claim 1, characterized in that: The driving wheel group includes a second motor, a driving wheel, a driven wheel, a tensioning wheel and a track. The second motor, the driving wheel, the driven wheel and the tensioning wheel are arranged on the frame. The track is tensioned on the driving wheel, the driven wheel and the tensioning wheel. The driving wheel is driven by the second motor.

10. The electric lawn mower equipped with multiple sets of cutters according to claim 9, characterized in that: The electronic control device comprises a battery, a generator and a control box arranged on the frame. The control box is electrically connected to the battery and the generator respectively, and the control box is electrically connected to a plurality of the first motors and the second motors respectively.

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