CN216017873U - Mowing robot with protective disc at bottom of cutter head - Google Patents
Mowing robot with protective disc at bottom of cutter head Download PDFInfo
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- CN216017873U CN216017873U CN202122257066.7U CN202122257066U CN216017873U CN 216017873 U CN216017873 U CN 216017873U CN 202122257066 U CN202122257066 U CN 202122257066U CN 216017873 U CN216017873 U CN 216017873U
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- cutting unit
- protective cover
- shield
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Abstract
The utility model discloses a mowing robot with a protective disc at the bottom of a cutter head, which comprises a motor arranged in a shell, a driving shaft driven by the motor to rotate, and a cutting unit arranged on the driving shaft and rotating along with the driving shaft, wherein a disc-shaped protective structure is arranged below the cutting unit, and can freely rotate around a central shaft of the cutting unit relative to the cutting unit. The mowing robot with the protective disc at the bottom of the cutter head has higher safety protection specification, and meanwhile, when the mower meets higher and dense grass, the resistance of the grass to the mower can be effectively reduced, and the passing performance of the mower is improved.
Description
Technical Field
The utility model relates to a mower, in particular to a mowing robot with a protective disc at the bottom of a cutter head.
Background
The working unit of the mowing robot with the protective disc at the bottom of the cutter disc is the cutter disc rotating at high speed, and sharp blades are arranged on the cutter disc. There is therefore a need for a mower having an effective guard structure for the cutting unit to prevent injury to the user.
Most of the existing protective structures are used for reducing the height of a peripheral casing or fixing an additional protective structure on a main casing. The reduction in housing height increases safety, but sacrifices the performance of the mower. If the mower meets grass with high ratio and high density in work, the resistance is obviously increased, the driving wheel of the mower slips, the effective mowing performance of the mower is lost, and the grass can be damaged.
At present, a protection structure is arranged on the lower shell of the mower, and the protection structure is designed to be floating. This protective structure is effective in laboratory testing. When the mower works in practice, grass in a field exerts an upward force on the protection structure, the protection structure can float upwards automatically, the ground clearance of the protection structure is increased, the distance easily exceeds the size of a safety test finger, and the protection function is lost.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the background art, the utility model provides the mowing robot with the protective disc at the bottom of the cutter head, which has higher safety protection specification, and meanwhile, when the mower meets higher and dense grass, the resistance of the grass to the mower can be effectively reduced, and the passing performance of the mower is improved.
In order to achieve the technical purpose, the utility model adopts the following technical scheme:
a mowing robot with a protective disc at the bottom of a cutter head comprises a shell, a motor arranged in the shell, a driving shaft driven by the motor to rotate, a cutting unit arranged on the driving shaft and rotating along with the driving shaft,
and a disc-shaped protective structure is arranged below the cutting unit and can freely rotate around the central shaft of the disc-shaped protective structure relative to the cutting unit.
The disc-shaped protective structure comprises:
a disc-shaped shield, a disc-shaped shield bearing screw, a disc-shaped shield dust cap, and a disc-shaped shield screw, wherein,
the outer ring of the bearing of the disc-shaped protective cover is assembled on the central hole of the disc-shaped protective cover in an interference manner;
the disc-shaped protective cover bearing inner ring is assembled on the cutting unit through the disc-shaped protective cover bearing screw in an interference manner;
the disc-shaped shield dust cover is fixed on the shield through disc-shaped shield screws, and the shield can rotate independently and freely through a bearing.
The disc-shaped protective cover comprises a first blocking part and a second blocking part, wherein the first blocking part is arranged in the horizontal direction, the second blocking part is arranged at the periphery of the first blocking part and extends towards the cutting unit, and the second blocking part extends to the periphery edge, located on the cutting unit, of the cutting blade.
The disc-shaped protective cover is of a net-shaped structure.
The mesh diameter of the reticular disc-shaped protective cover is less than or equal to 22 mm.
The cutting unit comprises a cutter disc, and at least one pivoting cutting element is mounted at the edge of the cutter disc;
the disc-shaped protective structure is arranged on the cutter head.
Has the advantages that:
firstly, a disc-shaped protective cover is arranged below the cutting unit and covers all the movement tracks of the blade, the projection of the protective structure is only slightly larger than the movement tracks of the blade, and the disc-shaped protective cover arranged below the cutting unit is of a net-shaped structure, so that grass is not prevented from entering the movement track range of the blade, and the test finger can be effectively prevented from contacting the blade.
Secondly, the height of the disc-shaped protective cover above the ground, which is arranged below the cutting unit, is changed along with the cutting unit when the mowing height is adjusted. When the mowing robot with the protective disc at the bottom of the cutter disc works, the protective part below the cutting unit is constantly protected.
And thirdly, the disc-shaped protective cover arranged below the cutting unit does not rotate along with the cutting unit, but can freely rotate around the central shaft of the cutting unit, and when the grass meets resistance, as long as the stress is unbalanced, the disc-shaped protective cover can rotate around a region with larger resistance under the action of the resistance, so that the passing performance of the mower is improved.
Drawings
FIG. 1 is an exploded view of the overall structure of a mowing robot with a protective disc at the bottom of a cutter head according to the utility model;
FIG. 2 is an assembled cross-sectional view of the disc-like protective structure of the present invention;
FIG. 3 is an exploded view of the disc-like containment structure of the present invention;
figure 4 is a cross-sectional view of a disc-like guard structure of the present invention.
The reference signs are: 1. an upper case member; 2. a lower housing member; 3. a cutting unit; 4. a disc-shaped protective structure; 401. a disk-shaped shield; 402. a disc-shaped shield bearing; 403. a disc-shaped shield bearing screw; 404. a disk-shaped shield dust cover; 405. a disk-shaped shield screw; 5. a motor.
Detailed Description
Examples
Fig. 1 shows an exploded view of the overall structure of a mowing robot with a protective disc at the bottom of a cutter disc, which comprises an upper shell part 1, a lower shell part, a cutting unit and a disc-shaped protective structure.
FIG. 2 is a sectional view of the disc-shaped protective structure of the present invention; a disc-shaped guard structure is arranged below the cutting unit and comprises a disc-shaped guard 401, a disc-shaped guard bearing 402, disc-shaped guard bearing screws 403, a disc-shaped guard dust cap 404, disc-shaped guard screws 405. The outer ring of the disc-shaped shield bearing 402 is in interference fit with the disc-shaped shield 401, the inner ring of the disc-shaped shield bearing 402 is in interference fit with the cutting unit 4 through a disc-shaped shield bearing screw 403, the disc-shaped shield dust cover 404 is fixed on the disc-shaped shield 401 through a disc-shaped shield screw 405, and the disc-shaped shield 401 can independently and freely rotate through the bearing.
As a preferable solution of the embodiment of the present invention, the disk-shaped protection cover 401 is a net structure. The mesh diameter of the reticular disc-shaped protective cover is less than or equal to 22 mm. The grass is not prevented from entering the motion track range of the blade, and the test finger can be effectively prevented from contacting the blade.
As a preferred solution to the embodiment of the present invention, the cutting unit comprises a cutter disc, the edge of which is mounted with at least one pivoting cutting element; the disc-shaped protective cover is arranged on the cutter head and can freely rotate around the central shaft of the disc-shaped protective cover relative to the cutter head. When meeting the resistance of grass, as long as the stress is unbalanced, the disc-shaped protective cover can rotate around the area with larger resistance under the action of the resistance, thereby improving the passing performance of the mower.
As an improvement of the scheme, the disc-shaped protective cover can be a cover body structure of a non-revolving body or a revolving body structure of grass combs with irregular bulges or different densities arranged on the edge. When the disk-shaped shield is of a non-rotating body structure, the cutting blade needs to be completely covered in the range of the first protective structure.
The effect of the above design is that the disc-shaped protection cover is in direct contact with the grass during the walking of the mower, and the main resistance of the mower during the walking comes from the resistance of the grass to the protection structure. The disc-shaped protective cover is designed to be a non-rotary body or the edge of the protective structure is provided with irregular bulges or grass combs with different densities, so that the disc-shaped protective cover is more easily in a state of unbalanced stress and is more easily rotated when being subjected to resistance. The disc-shaped protective cover in the embodiment is a net-shaped structure formed by metal wires, and the purpose can be achieved through different densities of the metal wires.
Claims (6)
1. The utility model provides a lawn mowing robot of protection dish is taken to blade disc bottom, includes the casing, sets up the motor in the casing, by the rotatory drive shaft of motor drive, sets up in the drive shaft and along with the rotatory cutting unit of drive shaft, its characterized in that:
and a disc-shaped protective structure is arranged below the cutting unit and can freely rotate around the central shaft of the disc-shaped protective structure relative to the cutting unit.
2. The robot mower with a protective disc at the bottom of the cutter disc of claim 1,
the disc-shaped protective structure comprises:
a disc-shaped shield, a disc-shaped shield bearing screw, a disc-shaped shield dust cap, and a disc-shaped shield screw, wherein,
the outer ring of the bearing of the disc-shaped protective cover is assembled on the central hole of the disc-shaped protective cover in an interference manner;
the disc-shaped protective cover bearing inner ring is assembled on the cutting unit through the disc-shaped protective cover bearing screw in an interference manner;
the disc-shaped shield dust cover is fixed on the shield through disc-shaped shield screws, and the shield can rotate independently and freely through a bearing.
3. The robot mower with a protective disc at the bottom of the cutter disc of claim 2,
the disc-shaped protective cover comprises a first blocking part and a second blocking part, wherein the first blocking part is arranged in the horizontal direction, the second blocking part is arranged at the periphery of the first blocking part and extends towards the cutting unit, and the second blocking part extends to the periphery edge, located on the cutting unit, of the cutting blade.
4. The robot as claimed in claim 2, wherein the protective cover is a net structure.
5. The robot mower with a protective disc at the bottom of the cutter disc as claimed in claim 4, wherein the mesh diameter of the meshed disc-shaped protective cover is less than or equal to 22 mm.
6. The mower robot with a guard pan at the bottom of the cutter deck of claim 1, wherein said cutting unit comprises a cutter deck having at least one pivoting cutting element mounted to an edge of said cutter deck;
the disc-shaped protective structure is arranged on the cutter head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122257066.7U CN216017873U (en) | 2021-09-17 | 2021-09-17 | Mowing robot with protective disc at bottom of cutter head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122257066.7U CN216017873U (en) | 2021-09-17 | 2021-09-17 | Mowing robot with protective disc at bottom of cutter head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216017873U true CN216017873U (en) | 2022-03-15 |
Family
ID=80599168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122257066.7U Active CN216017873U (en) | 2021-09-17 | 2021-09-17 | Mowing robot with protective disc at bottom of cutter head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216017873U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE2250525A1 (en) * | 2022-05-02 | 2023-11-03 | Husqvarna Ab | Skid plate |
-
2021
- 2021-09-17 CN CN202122257066.7U patent/CN216017873U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE2250525A1 (en) * | 2022-05-02 | 2023-11-03 | Husqvarna Ab | Skid plate |
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