Robot chassis and robot
By designing that the side wall height of the bottom shell of the robot chassis is higher than the cutting plane of the cutter plate, combined with the chip removal port design, the problem of lawn mower cutter plate blocking grass is solved and the weeding efficiency is improved.
Patent Information
- Application Number
- CN202421849914.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-31
AI Technical Summary
The wet grass clippings cut by the lawn mower during the mowing process will be thrown on the side walls of the outer edge of the cutter mower by the high-speed rotating blades, causing grass blockage and reducing weeding efficiency.
A robot chassis is designed, the bottom shell includes a first side and a second side, and the lower edge heights of both sides are higher than the height of the cutting plane of the cutter to prevent grass chips from being thrown on the side walls and forming chip removal openings to guide the outside of the grass chips.
It reduces the accumulation of grass clippings at the knife plate, reduces the frequency of grass blocking, improves the efficiency of weeding, and reduces the cumbersome operation of cleaning grass blocking.
Smart Images
Figure CN222852683U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of robot technology, and in particular to a robot chassis and a robot. Background Art
[0002] A lawn mower is a machine used to mow lawns or grass, which can help people complete lawn maintenance work quickly and efficiently.
[0003] In the related art, a lawn mower uses an engine to drive a cutter disc with blades to rotate at high speed, thereby achieving the mowing work. Currently, the cutter disc of the lawn mower is arranged at the bottom of the lawn mower. During the mowing process, the wet grass clippings cut by the cutter disc will be thrown onto the outer side wall of the cutter disc by the high-speed rotating blades. After a period of time, the grass clippings will cause the gap between the cutter disc and its outer side wall to be blocked by grass. Therefore, it is necessary to perform cumbersome cleaning operations, which will lead to low weeding efficiency. Utility Model Content
[0004] The purpose of the present application is to provide a robot chassis and a robot, which solves the problem that wet grass clippings cut by a cutter disc will be thrown onto the outer side wall of the cutter disc by a high-speed rotating blade, causing grass blockage.
[0005] To achieve the above-mentioned objectives, the present application provides a chassis of a robot, including a bottom shell and a cutter disc, the bottom shell is provided with an installation cavity, the installation cavity is used to install the cutter disc, the bottom shell includes a first side and a second side, the first side and the second side are relatively arranged along the circumference of the installation cavity, and the height of the first lower edge of the first side and the second lower edge of the second side are both higher than the height of the cutting plane of the cutter disc.
[0006] In some embodiments, the first side and the second side are two sides of the bottom shell along the first direction, the first side includes a first wall, the second side includes a second wall, and the lowest point heights of both the first wall and the second wall are higher than the height of the cutting plane of the blade disc.
[0007] In some embodiments, the first wall surface and the second wall surface are both arc-shaped walls, and the arc-shaped walls are used to guide the grass clippings thrown out by the blade disc to the outside of the bottom shell.
[0008] In some embodiments, the first wall surface, the second wall surface and the bottom surface of the mounting cavity on the bottom shell are arranged on the same plane.
[0009] In some embodiments, a protective plate is installed at one end of both the first wall and the second wall away from the cutter disc.
[0010] In some embodiments, the bottom shell is provided with a third wall and a fourth wall on both sides of a second direction perpendicular to the first direction, and a size of at least one of the third wall and the fourth wall along the first direction is not larger than a size of the cutter disc to form at least two chip removal ports.
[0011] In some embodiments, the bottom shell includes an extension structure for being mounted on an outer cylinder of the rear axle, the third wall surface is disposed on the extension structure, and the third wall surface is an arc-shaped wall surface.
[0012] In some embodiments, the fourth wall surface is an inclined surface, and the height of the inclined surface gradually decreases in a direction away from the cutter disc.
[0013] In some embodiments, the bottom shell is an integrally formed structure, and the height of the blade disc in the mounting cavity is adjustable.
[0014] The present application also provides a robot, comprising a body and a chassis of any of the above robots, wherein the chassis is connected to the body.
[0015] With respect to the above-mentioned background technology, the chassis of the robot provided in the embodiment of the present application includes a bottom shell and a blade disc, the bottom shell is provided with an installation cavity, the blade disc is installed in the installation cavity, the bottom shell includes a first side and a second side, the first side and the second side are arranged relatively along the circumference of the installation cavity, and the height of the first lower edge of the first side and the second lower edge of the second side are both higher than the height of the blade disc cutting plane. It can be seen that compared with the situation where the wet grass clippings cut by the traditional blade disc will be thrown on the outer side wall of the blade disc by the high-speed rotating blade to cause grass blockage, the chassis provided in the embodiment of the present application sets the height of the lower edges of the first side and the second side of the bottom shell to be higher than the height of the blade disc cutting plane to prevent the grass cut by the blade disc from being thrown on the wall surface of the first side and the second side of the chassis to cause grass blockage between the blade disc and the chassis. Such a setting can reduce the accumulation of grass clippings at the blade disc of the robot and reduce the frequency of grass blockage of the blade disc, so the staff does not need to perform tedious operations to clean the blocked grass, which can improve the efficiency of the robot weeding to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.
[0017] Figure 1 This is a schematic diagram of the chassis structure of the robot in the embodiment of the present application;
[0018] Figure 2 A side view of the robot in an embodiment of the present application;
[0019] Figure 3 This is a cross-sectional view of the robot in an embodiment of the present application.
[0020] in:
[0021] 10-bottom shell, 11-installation cavity, 111-bottom surface, 12-chip discharge port, 13-first wall surface, 131-first lower edge, 14-second wall surface, 141-second lower edge, 15-third wall surface, 151-third lower edge, 16-fourth wall surface, 161-fourth lower edge, 17-extension structure;
[0022] 20- knife disc;
[0023] 30-Protective plate. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0025] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0026] It should be noted that the directional words such as "upper end, lower end, left side, right side" described below are all defined based on the drawings in the specification.
[0027] See also Figure 1 The chassis of the robot provided in the embodiment of the present application includes a bottom shell 10 and a cutter disc 20. The bottom shell 10 is provided with an installation cavity 11. The cutter disc 20 is installed in the installation cavity 11. The bottom shell 10 includes a first side and a second side. The first side and the second side are relatively arranged along the circumference of the installation cavity 11. The height of the first lower edge 131 of the first side and the second lower edge 141 of the second side are both higher than the height of the cutting plane of the cutter disc 20.
[0028] It should be noted that the so-called cutting plane of the cutter disc 20 refers to the plane where the blades on the cutter disc 20 are located.
[0029] It can be seen that compared with the situation where the wet grass clippings cut by the traditional blade 20 will be thrown onto the outer side wall of the blade 20 by the high-speed rotating blade, causing grass blockage, the chassis provided in the embodiment of the present application sets the height of the first lower edge 131 on the first side and the second lower edge 141 on the second side to be higher than the height of the cutting plane of the blade 20, so as to prevent the grass cut by the blade 20 from being thrown onto the walls on the two opposite sides of the chassis, causing grass blockage between the blade 20 and the chassis.
[0030] The above-mentioned configuration can reduce the accumulation of grass clippings at the robot's blade disc 20 and reduce the frequency of grass blockage at the blade disc 20. Therefore, the staff does not need to perform tedious operations to clean the blocked grass, which can improve the efficiency of the robot's weeding to a certain extent.
[0031] In some embodiments, please refer to Figure 2 and Figure 3 The first side and the second side are two sides of the bottom shell 10 along the first direction. The first side includes a first wall 13, and the second side includes a second wall 14. The lowest point heights of the first wall 13 and the second wall 14 are both higher than the height of the cutting plane of the cutter disc 20.
[0032] For example, the first direction may be the width direction of the chassis, that is, the two side walls of the bottom shell 10 along the width direction are respectively the first wall 13 and the second wall 14, and the first lower edge 131 of the first side and the second lower edge 141 of the second side are both higher than the height of the cutting plane of the blade disc 20.
[0033] In this way, the grass clippings cut by the blade disc 20 can be directly thrown out from both sides in the width direction of the vehicle bottom, thereby reducing the accumulation of grass clippings at the blade disc 20 and reducing the frequency of the blade disc 20 being blocked by grass.
[0034] Of course, according to actual needs, the heights of the first lower edge 131 on the first side and the second lower edge 141 on the second side can be set in a variety of ways. As long as they are higher than the height of the cutting plane of the cutter disc 20, they are within the scope of this embodiment.
[0035] In some embodiments, the heights of the first lower edge 131 of the first side and the second lower edge 141 of the second side are both located between the height of the cutting plane of the blade disc 20 and the height of the mounting surface on the bottom shell 10 for mounting the blade disc 20 .
[0036] In this embodiment, in order to facilitate guiding the grass clippings thrown out by the blade disc 20 to the periphery of the robot and avoid grass blockage, both the first wall 13 and the second wall 14 are set to arc-shaped walls, that is, the grass clippings thrown out by the blade disc 20 are guided to the outside of the bottom shell 10 through the arc-shaped wall.
[0037] In some embodiments, the first wall surface 13, the second wall surface 14 and the bottom surface 111 of the mounting cavity 11 on the bottom shell 10 are arranged on the same plane. The bottom surface 111 of the mounting cavity 11 is the mounting surface on the bottom shell 10 for mounting the cutter head 20. In other words, the height of the first lower edge 131 of the first side and the second lower edge 141 of the second side are both the same as the height of the mounting surface on the bottom shell 10 for mounting the cutter head 20.
[0038] With such an arrangement, the first wall 13 and the second wall 14 can be extended walls extending from the bottom surface 111 of the mounting cavity 11 on the bottom shell 10 on both sides along the width direction, so that avoidance spaces can be formed on both sides along the width direction of the bottom surface 111 of the mounting cavity 11 on the bottom shell 10, thereby facilitating the grass clippings on the blade disc 20 to be thrown out to the outside of the robot through the avoidance space.
[0039] In some embodiments, a protective plate 30 is installed at one end of both the first wall 13 and the second wall 14 away from the cutter disc 20, and the distance between the two protective plates 30 is not less than the distance between the two pairs of wheels of the robot.
[0040] In this embodiment, the distance between the two protective plates 30 is greater than the distance between the two pairs of wheels of the robot, which can prevent workers from accidentally touching the inner space of the protective plates 30, thereby providing safety protection for workers outside the robot.
[0041] Of course, according to actual needs, the protective plate 30 can be connected to the corresponding wall surface through a detachable connecting assembly (bolt assembly). The protective plate 30 specifically includes a connecting portion and a protective portion, wherein the protective portion is vertically connected to the connecting portion.
[0042] Please also read Figure 2 and Figure 3 In order to facilitate the formation of a chip removal opening 12 on the periphery of the cutter disc 20, the bottom shell 10 is provided with a third wall 15 and a fourth wall 16 on both sides of a second direction perpendicular to the first direction. The second direction is the length direction or the travel direction of the robot. Therefore, the third wall 15 and the fourth wall 16 are the two side walls in the length direction of the chassis respectively. The size of at least one of the third wall 15 and the fourth wall 16 along the first direction is not greater than the size of the cutter disc 20 to form at least two chip removal openings 12.
[0043] For example, the dimensions of both the third wall 15 and the fourth wall 16 along the first direction can be set to be smaller than the dimension of the cutter disc 20, so that chip removal openings 12 (a total of four chip removal openings 12) can be formed on both sides of the third wall 15 along the first direction and on both sides of the fourth wall 16 along the first direction.
[0044] It can be understood that the four chip removal openings 12 are arranged along the peripheral direction of the cutter disc 20, and the four chip removal openings 12 are respectively arranged at the four corners of the periphery of the cutter disc 20, so as to maximize chip removal and further reduce the accumulation of grass clippings at the cutter disc 20, thereby avoiding grass blockage at the cutter disc 20.
[0045] For another example, the size of the third wall surface 15 along the first direction may be set to be smaller than the size of the blade disc 20, so that the chip discharge openings 12 can be formed on both sides of the third wall surface 15 along the first direction, so that the grass clippings on the blade disc 20 are thrown out through both ends of the third wall surface 15 along the width direction to prevent grass accumulation. At the same time, the height of the third lower edge 151 of the third wall surface 15 and the height of the fourth lower edge 161 of the fourth wall surface 16 are also set to be lower than the cutting plane where the blade disc 20 is located, so as to discharge grass to a greater extent.
[0046] In addition, the chip discharge port 12 arranged on the periphery of the blade disc 20 can also effectively guide the grass clippings generated by cutting to a specific area to facilitate the collection and cleaning of the grass clippings. By effectively discharging the grass clippings, the interference of the grass clippings on the blade disc 20 can be reduced, keeping the blade disc 20 clean, thereby improving the cutting efficiency of the robot.
[0047] In order to facilitate the formation of the third wall surface 15 , the bottom shell 10 includes an extension structure 17 for being mounted on the outer cylinder of the rear axle. The third wall surface 15 is disposed on the extension structure 17 , and the third wall surface 15 is an arc-shaped wall surface.
[0048] Compared with extending the third wall 15 below the bottom shell 10, setting the third wall 15 on the extension structure 17 on the outer cylinder of the rear axle does not need to additionally set a corresponding structure at the bottom of the chassis. This can raise the chassis of the robot and improve the robot's passability on uneven roads.
[0049] In some embodiments, the fourth wall 16 is an inclined surface, and the height of the inclined surface gradually decreases in the direction away from the blade disc 20. In other words, the closer the fourth wall 16 is to the blade disc 20, the higher the height from the ground, which is conducive to guiding the grass clippings thrown out by the blade disc 20 to the periphery of the robot to avoid grass accumulation or clogging.
[0050] In some embodiments, the bottom shell 10 is an integrally formed structure, and the height of the blade disc 20 in the installation cavity 11 is adjustable.
[0051] For example, the bottom shell 10 can be a plastic part formed by injection molding, and the first wall 13, the second wall 14, the third wall 15 and the fourth wall 16 can be formed by injection molding at one time, which greatly reduces the difficulty of production and improves the efficiency of production. Among them, the blade disc 20 can be installed on the bottom shell 10 for a second time, and the blade disc 20 can be slidably connected to the bottom shell 10, so that the blade disc 20 can be adjusted in height according to actual mowing needs.
[0052] The present application provides a robot, comprising a body and a chassis as described in the above specific embodiment, wherein the chassis is connected to the body. The robot may be a lawn mower robot.
[0053] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.
[0054] The chassis and robot of the robot provided by the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the scheme and its core idea of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the present application.
Claims
1. A robot chassis, characterized in that: It includes a base shell and a cutter disc, the base shell is provided with an installation cavity, the installation cavity is used to install the cutter disc, the base shell includes a first side and a second side, the first side and the second side are relatively arranged along the circumference of the installation cavity, and the height of the first lower edge of the first side and the second lower edge of the second side are both higher than the height of the cutting plane of the cutter disc.
2. The chassis according to claim 1, characterized in that The first side and the second side are two sides of the bottom shell along the first direction, the first side includes a first wall, the second side includes a second wall, and the lowest point heights of the first wall and the second wall are both higher than the height of the cutter disc cutting plane.
3. The chassis according to claim 2, characterized in that The first wall surface and the second wall surface are both arc-shaped wall surfaces, and the arc-shaped wall surfaces are used to guide the grass clippings thrown out by the blade disc to the outside of the bottom shell.
4. The chassis according to claim 2, characterized in that The first wall surface, the second wall surface and the bottom surface of the installation cavity on the bottom shell are arranged on the same plane.
5. The chassis according to claim 2, characterized in that: A protective plate is installed at one end of both the first wall surface and the second wall surface away from the cutter disc.
6. The chassis according to claim 1, characterized in that The bottom shell is provided with a third wall and a fourth wall on both sides of a second direction perpendicular to the first direction, and the size of at least one of the third wall and the fourth wall along the first direction is not larger than the size of the cutter disc to form at least two chip removal ports.
7. The chassis according to claim 6, characterized in that The bottom shell comprises an extension structure for being mounted on an outer cylinder of a rear axle, the third wall surface is arranged on the extension structure, and the third wall surface is an arc-shaped wall surface.
8. The chassis according to claim 6, characterized in that The fourth wall surface is an inclined surface, and the height of the inclined surface gradually decreases in a direction away from the cutter disc.
9. The chassis according to any one of claims 1 to 8, characterized in that: The bottom shell is an integrally formed structure, and the height of the cutter disc in the installation cavity is adjustable.
10. A robot, comprising a body, characterized in that: It also includes a chassis of the robot as described in any one of claims 1 to 9, wherein the chassis is connected to the body.