Bedknife adjustment structure and lawn mowing robot

Abstract

The present application provides a bedknife adjustment structure and a lawn mowing robot. The bedknife adjustment structure comprises: two oppositely disposed side shells; a bedknife bracket, located between the two oppositely disposed side shells and connected to the side shells; a bedknife blade, located between the two oppositely disposed side shells and connected to the bedknife bracket; a pressure block and a fastener, the fastener being used to affix the pressure block on the side shells, the pressure block and the side shells forming a through hole facing the bedknife bracket, the aperture of the through hole being adjustable by means of the fastener; and an eccentric member, comprising a first sub-shaft and a second sub-shaft, the diameter of the second sub-shaft being smaller than the diameter of the first sub-shaft, the first sub-shaft being located in the through hole, a connecting hole being provided in the bottom cutter bracket, the second sub-shaft being disposed in the connecting hole and matching with a bedknife bracket gap, the eccentricity of the second sub-shaft relative to the first sub-shaft being greater than a gap between the first sub-shaft and the bedknife bracket. When the eccentric rotates and the side shells remain stationary, the second sub-shaft rotates around a center axis of the first sub-shaft, thereby adjusting the bedknife blade by means of a simple structure.

Description

Bed knife adjustment structure and mowing robot Technical Field

[0001] The present application relates to the technical field of lawn mowing robots, and in particular to a bed knife adjustment structure and a lawn mowing robot. Background Art

[0002] A reel mowing robot usually requires alignment of the reel and bed knife to ensure a suitable distance between them for mowing the lawn. However, current alignment operations are sometimes performed by adjusting the reel, and sometimes by adjusting the bed knife. However, either the position of the bed knife or reel will shift when locked after adjustment, or the adjustment structure is complex.

[0003] Summary of the Invention

[0004] To this end, the present application provides a bed knife adjustment structure and a lawn mowing robot to solve the above technical problems.

[0005] 18. The repairing kit for automotive dents, according to claim 17, wherein the foot stand comprises a through-hole, and the two foot stands comprised of a first, a second, and a third sub-shaft, wherein the foot stand comprises a through-hole, the second sub-shaft comprising a first sub-shaft, and a second sub-shaft, wherein the foot stand comprises a through-hole, the second sub-shaft comprising a first sub-shaft, and a second sub-shaft.

[0006] A second aspect of the present application provides a lawn mowing robot, which includes a bed knife adjustment structure, a roller and a roller blade. The bed knife adjustment structure is the aforementioned bed knife adjustment structure, the roller is connected to the two opposite side shells and can rotate relative to the side shells, and the roller blade is arranged on the roller. When the roller blade and the bed knife blade form a shearing structure, the blade edge of the roller blade is opposite to the blade edge of the bed knife blade.

[0007] In the present application, since the bed knife adjustment structure includes two relatively arranged side shells, a bed knife blade, a pressure block, a fastener and an eccentric piece, the eccentric piece includes a first sub-shaft and a second sub-shaft, the diameter of the second sub-shaft is smaller than the diameter of the first sub-shaft, the second sub-shaft is arranged in the connecting hole of the bed knife bracket and is clearance-matched with the bed knife bracket, the first sub-shaft is located in the through hole, and the aperture of the through hole formed by the pressure block and the side shell can be adjusted by the fastener, the bed knife blade is located between the two relatively arranged side shells and connected to the bed knife bracket, and the bed knife bracket is located between the two relatively arranged side shells and connected to the side shell, therefore, when the aperture of the through hole is adjusted When the preset aperture is sufficiently aligned with the clearance of the first sub-shaft, and the eccentric member rotates while the side housing remains stationary, the second sub-shaft rotates about the central axis of the first sub-shaft. Furthermore, because the eccentricity of the second sub-shaft relative to the first sub-shaft is greater than the clearance between the second sub-shaft and the bed knife bracket, the bed knife bracket rotates relative to the side housing, and the bed knife blade rotates with the rotation of the bed knife bracket, thereby adjusting the bed knife blade to a suitable position parallel to the reel blade of the mowing robot (which can also be understood as the bed knife blade being parallel to the reel shaft), while also creating a suitable clearance with the reel blade of the mowing robot to facilitate lawn mowing. After adjustment is completed, the fastener reduces the aperture of the through-hole formed between the pressure block and the side housing to clamp the first sub-shaft, thereby achieving locking without causing the bed knife blade to deviate. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the implementation. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0009] FIG1 is a schematic diagram of the three-dimensional structure of a lawn mowing robot provided in some embodiments of the present application;

[0010] FIG2 is a cross-sectional schematic diagram of a lawn mowing robot provided in some embodiments of the present application;

[0011] FIG3 is a partial enlarged schematic diagram of portion A in FIG1 . DETAILED DESCRIPTION

[0012] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0013] In the description of this application, unless otherwise specified or limited, the term "connection" should be understood in a broad sense. For example, it can mean a fixed connection, a detachable connection, or an integral connection; it can mean a direct connection, an indirect connection through an intermediate medium, or internal communication between two components; it can mean a communication connection; or it can mean an electrical connection. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0014] Please refer to Figures 1 and 2. Figure 1 is a schematic diagram of the three-dimensional structure of the lawn mower robot provided in some embodiments of the present application; Figure 2 is a schematic diagram of the cross-section of the lawn mower robot provided in some embodiments of the present application.

[0015] As shown in Figures 1 and 2, in some embodiments, the lawn mower robot 1 includes a bed knife adjustment structure 100, a roller 101 and a reel blade 102. The bed knife adjustment structure 100 includes a bed knife blade 12, and the bed knife blade 12 is located between two side shells 10 that are oppositely arranged. The roller 101 is connected to the two side shells 10 that are oppositely arranged and can rotate relative to the side shells. The reel blade 102 is arranged on the roller 101. When the reel blade 102 forms a shearing structure with the bed knife blade 12, the blade edge of the reel blade 102 is opposite to the blade edge of the bed knife blade 12.

[0016] In some embodiments, the hob blade 102 extends spirally on the roller 101 , the bed knife blade 12 is a straight blade, and the bed knife blade 12 is rectangular.

[0017] As shown in Figures 1 and 2, in some embodiments, the bed knife adjustment structure 100 includes two side shells 10 disposed oppositely, a bed knife bracket 11, a bed knife blade 12, a pressure block 13, a fastener 14, and an eccentric member 15. The bed knife bracket 11 is located between the two side shells 10 disposed oppositely and is connected to the two side shells 10 disposed oppositely. The bed knife blade 12 is located between the two side shells 10 disposed oppositely and is connected to the bed knife bracket 11. The fastener 14 is used to fix the pressure block 13 to the side shells. The pressure block 13 and the side shells form a through hole 110 facing the bed knife bracket 11, and the aperture of the through hole 110 can be adjusted by the fastener 14. The eccentric member 15 includes a first sub-shaft 151 and a second sub-shaft 152. The diameter of the second sub-shaft 152 is smaller than the diameter of the first sub-shaft 151. The first sub-shaft 151 is located in the through hole 110. A connecting hole 120 is provided in the bottom knife bracket 11. The second sub-shaft 152 is provided in the connecting hole 120 and is clearance-matched with the bottom knife bracket 11. The eccentricity of the second sub-shaft 152 relative to the first sub-shaft 151 is greater than the gap between the second sub-shaft 152 and the bottom knife bracket 11.

[0018] In the present application, since the bed knife adjustment structure 100 includes two relatively arranged side shells 10, a bed knife bracket 11, a bed knife blade 12, a pressure block 13, a fastener 14 and an eccentric member 15, the eccentric member 15 includes a first sub-axis 151 and a second sub-axis 152, the diameter of the second sub-axis 152 is smaller than the diameter of the first sub-axis 151, the second sub-axis 152 is arranged in the connecting hole 120 of the bed knife bracket 11 and is clearance-matched with the bed knife bracket 11, the first sub-axis 151 is located in the through hole 110, and the aperture of the through hole 110 formed by the pressure block 13 and the side shell can be adjusted by the fastener 14, the bed knife blade 12 is located between the two relatively arranged side shells 10 and connected to the bed knife bracket 11, and the bed knife bracket 11 is located between the two relatively arranged side shells 10 and connected to the side shell. Therefore, when When the aperture of the through hole 110 is adjusted to a preset aperture and a clearance fit with the first sub-shaft 151, and when the eccentric member 15 rotates and the side shell is stationary, the second sub-shaft 152 rotates around the central axis of the first sub-shaft 151. Since the eccentricity of the second sub-shaft 152 relative to the first sub-shaft 151 is greater than the clearance between the second sub-shaft 152 and the bed knife bracket 11, the bed knife bracket 11 rotates relative to the side shell, and the bed knife blade 12 rotates with the rotation of the bed knife bracket 11, so that the bed knife blade 12 can be adjusted to a suitable position parallel to the reel blade 102 in the lawn mower robot 1 (it can also be understood that the bed knife blade 12 is parallel to the roller 101), and at the same time, a suitable gap is formed with the reel blade 102 in the lawn mower robot 1 to facilitate mowing the lawn. After the adjustment is completed, the aperture of the through hole 110 formed by the pressing block 13 and the side shell is reduced by the fastener 14 to clamp the first sub-shaft 151, thereby achieving locking without causing the bed knife blade 12 to deviate.

[0019] Please refer to Figures 1 to 3. Figure 3 is a partial enlarged schematic diagram of part A in Figure 1.

[0020] As shown in FIG2 , the two side shells 10 disposed opposite to each other refer to the first side shell 10a and the second side shell 10b disposed opposite to each other. As shown in FIG1 , the pressing block 13 includes a first pressing block 13a and a second pressing block 13b. The first pressing block 13a and the first side shell 10a form a first through hole 110a facing the bed knife bracket 11. As shown in FIG1 and FIG2 , the second pressing block 13b and the second side shell 10b form a second through hole 110b facing the bed knife bracket 11. The two ends of the bed knife bracket 11 are respectively provided with first connecting holes 110a and 110b. 20a and the second connecting hole 120b. The eccentric member 15 includes a first eccentric member 15a and a second eccentric member 15b. The first eccentric member 15a is located between the first through hole 110a and the first connecting hole 120a, and the second eccentric member 15b is located between the second through hole 110b and the second connecting hole 120b. It should be noted that the first eccentric member 15a includes a first sub-axis 151 and a second sub-axis 152, and the second eccentric member 15b also includes a first sub-axis 151 and a second sub-axis 152. Thus, the first eccentric member 15a and / or the second eccentric member 15b can be rotated to adjust the position of the bedknife blade 12, thereby ensuring an appropriate gap between the bedknife blade 12 and the reel blade 102 for easier lawn mowing. It should be noted that only one side of the bedknife blade 12 can be adjusted, or both sides can be adjusted. Furthermore, when adjusting only one side of the bedknife blade 12, the other side can remain unchanged, making adjustment more convenient.

[0021] The first connection hole 120a and the second connection hole 120b may both be blind holes.

[0022] During assembly, the second sub-shaft 152 of the eccentric member 15 can be first inserted into the connecting hole 120 of the bottom knife bracket 11, and then the pressure block 13 and the side shell are connected by the fastener 14. The aperture of the through hole 110 formed by the pressure block 13 and the side shell is adjusted by the fastener 14 so that the eccentric member 15 can rotate relative to the through hole 110, or cannot rotate relative to the through hole 110.

[0023] In some embodiments, a flat groove 153 is provided at one end of the first sub-shaft 151 of the eccentric member 15 away from the second sub-shaft 152 , so that a flat-blade screwdriver can be inserted into the flat groove 153 to rotate the eccentric member 15 .

[0024] In some embodiments, the fit tolerance between the second sub-shaft 152 and the connecting hole 120 is H7 / g6. In some embodiments, when adjusting the gap between the bedknife blade 12 and the hob blade 102 by adjusting the bedknife blade 12, the diameter of the through hole 110 formed by the pressing block 13 and the side shell can be adjusted by the fastener 14 so that the fit tolerance between the first sub-shaft 151 and the through hole 110 is H7 / g6.

[0025] In other embodiments, the fit tolerance between the second sub-shaft 152 and the connecting hole 120 may also be of other tolerance grades, as long as the eccentricity of the second sub-shaft 152 relative to the first sub-shaft 151 is greater than the gap between the second sub-shaft 152 and the bed knife bracket 11. By adjusting the aperture of the through hole 110 formed by the pressure block 13 and the side shell via the fastener 14, the fit tolerance between the first sub-shaft 151 and the through hole 110 may also be of other tolerance grades, as long as the first sub-shaft 151 can rotate relative to the through hole 110 and the through hole 110 can serve to limit the rotational space of the first sub-shaft 151.

[0026] In some embodiments, the eccentricity of the second sub-axis 152 relative to the first sub-axis 151 is between 0.1 and 0.3 mm. The gap between the second sub-axis 152 and the bed knife bracket 11 is less than 1 mm, which is more compatible with the bed knife bracket 11.

[0027] In some embodiments, the fastener 14 includes a fastening screw, and the fastener 14 includes a first fastener 14a and a second fastener 14b, wherein the first fastener 14a and the second fastener 14b are respectively located on either side of the eccentric member 15. The fastener 14 connects the pressure block 13 and the side shell, and the diameter of the through hole 110 formed between the pressure block 13 and the side shell can be adjusted by loosening or tightening the fastener 14, resulting in a simple structure and more convenient adjustment.

[0028] The pressing block 13 is in a cubic shape, and a first arc-shaped groove is provided on the side of the pressing block 13 facing the side shell. Correspondingly, a second arc-shaped groove is provided on the side of the side shell facing the pressing block 13. When the fastener 14 connects the pressing block 13 and the side shell, the pressing block 13 abuts against the side shell, so that the first arc-shaped groove and the second arc-shaped groove are combined to form the through hole 110 facing the bottom knife bracket 11.

[0029] In other embodiments, the fastener 14 may also be of other structures, as long as it can connect the pressing block and the side shell and can adjust the aperture of the through hole through the fastener 14 .

[0030] In some embodiments, as shown in Figures 1 and 3, the bedknife adjustment structure 100 further includes a gasket 16, which is sleeved on the second sub-shaft 152 and located between the first sub-shaft 151 and the bedknife bracket 11. The gasket 16 can reduce friction between the first sub-shaft 151 and the bedknife bracket 11, thereby saving effort when rotating the eccentric member 15 and reducing wear between the eccentric member 15 and the bedknife bracket 11.

[0031] The above is an implementation method of the embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the embodiment of the present application. These improvements and modifications are also considered to be within the scope of protection of the present application.

Claims

1. A bed knife adjustment structure, characterized in that: The bed knife adjustment structure comprises: Two side shells arranged opposite to each other; A bottom knife support is located between the two side shells arranged opposite to each other and connected to the side shells; A bed knife blade is located between the two oppositely disposed side shells and connected to the bed knife bracket; A pressing block and a fastener, wherein the fastener is used to connect the pressing block and the side shell, the pressing block and the side shell form a through hole facing the bottom knife bracket, and the aperture of the through hole can be adjusted by the fastener; The eccentric piece includes a first sub-shaft and a second sub-shaft, the diameter of the second sub-shaft is smaller than the diameter of the first sub-shaft, the first sub-shaft is located in the through hole, a connecting hole is provided in the bottom knife bracket, the second sub-shaft is arranged in the connecting hole and is gap-matched with the bottom knife bracket, and the eccentricity of the second sub-shaft relative to the first sub-shaft is greater than the gap between the second sub-shaft and the bottom knife bracket.

2. The bed knife adjustment structure according to claim 1, characterized in that: The matching tolerance between the second sub-shaft and the connecting hole is H7 / g6.

3. The bed knife adjustment structure according to claim 1, characterized in that: The eccentricity of the second sub-axis relative to the first sub-axis is between 0.1 and 0.3 mm.

4. The bed knife adjustment structure according to claim 1, characterized in that: The bottom knife adjustment structure also includes a gasket, which is sleeved on the second sub-shaft and located between the first sub-shaft and the bottom knife bracket.

5. The bed knife adjustment structure according to claim 1, characterized in that: The fastener comprises a fastening screw, and the fastener comprises a first fastener and a second fastener, wherein the first fastener and the second fastener are respectively located on two sides of the eccentric member.

6. A lawn mowing robot, characterized in that: The lawn mowing robot includes a bed knife adjustment structure, a roller and a roller blade. The bed knife adjustment structure is the bed knife adjustment structure described in any one of claims 1 to 5. The roller is connected to the two side shells that are oppositely arranged and can rotate relative to the side shells. The roller blade is arranged on the roller. When the roller blade and the bed knife blade form a shearing structure, the blade edge of the roller blade is opposite to the blade edge of the bed knife blade.

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