CN113748829A - Height self-adjusting cutting device and self-walking equipment - Google Patents
Height self-adjusting cutting device and self-walking equipment Download PDFInfo
- Publication number
- CN113748829A CN113748829A CN202111091712.5A CN202111091712A CN113748829A CN 113748829 A CN113748829 A CN 113748829A CN 202111091712 A CN202111091712 A CN 202111091712A CN 113748829 A CN113748829 A CN 113748829A
- Authority
- CN
- China
- Prior art keywords
- cutting device
- height
- wheel seat
- self
- adjusting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 244000025254 Cannabis sativa Species 0.000 claims abstract description 17
- 230000001681 protective effect Effects 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 claims description 2
- 238000013459 approach Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
- A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
- A01D34/64—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
- A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
- A01D34/74—Cutting-height adjustment
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
- A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
- A01D34/82—Other details
- A01D34/828—Safety devices
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D75/00—Accessories for harvesters or mowers
- A01D75/18—Safety devices for parts of the machines
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Harvester Elements (AREA)
Abstract
The invention discloses a height self-adjusting cutting device and self-walking equipment. When the mower meets grass with higher ratio and high density, the cutting device can adapt to the actual working condition of the grass and automatically adjust the height.
Description
Technical Field
The invention discloses a height self-adjusting cutting device and self-walking equipment.
Background
The working unit of the mowing robot is a cutter disc rotating at a 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.
The existing protective structure mostly reduces the height of the peripheral shell or fixes an additional protective structure on the main shell. 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.
In addition, the safety protection structure of the existing mower increases the difficulty in mowing and greatly reduces the efficiency.
Disclosure of Invention
Aiming at the technical problems, the invention designs the height self-adjusting cutting device and the self-walking equipment, and when the mower encounters grass with higher height and high density, the cutting device can adapt to the actual working condition of the grass and automatically adjust the height.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
the utility model provides a height self-interacting cutting device, includes the casing, sets up the cutting device in the casing, be equipped with vertical elastic unit between cutting device and the casing, when cutting device received the buoyancy of grass, compress this vertical elastic unit and make cutting device come-up, reduce the resistance of lawn mower.
Further comprising:
the height limiting and adjusting structure is assembled on the shell, the cutting device is assembled on the height limiting and adjusting structure, and the vertical elastic unit is arranged between the cutting device and the height limiting and adjusting structure;
and the limiting structure is positioned between the height limiting and adjusting structure and the cutting device and is used for limiting the lowest mowing height of the cutting device.
An auxiliary cavity is arranged in the shell;
the height limiting and adjusting structure is an outer wheel seat with a downward opening, and the outer wheel seat is arranged in the auxiliary cavity;
the upper part of the cutting device is provided with an inner wheel seat;
the limit structure comprises:
the knob is arranged in the shell and positioned at the upper part of the auxiliary cavity, a central hole is formed in the top of the auxiliary cavity, a force transmission shaft is arranged at the bottom of the knob, and the force transmission shaft penetrates through the central hole and is fixedly connected with the outer wheel seat;
the inner circumferential surface of the outer wheel seat is provided with a first limiting bulge;
the peripheral surface of the inner wheel seat is provided with a second limiting bulge,
the vertical elastic unit is positioned between the inner wheel seat and the outer wheel seat;
under the action of the elasticity of the vertical elastic unit and the gravity of the cutting device, the second limiting bulge is tightly pressed on the first limiting bulge on the outer wheel seat, so that the lowest height of the cutting device is limited;
when the cutting device is subjected to the buoyancy of grass, the cutting device compresses the vertical elastic unit through the inner wheel seat to enable the cutting device to float upwards.
The outer wheel seat is fixed in the axial position and can rotate around the central shaft of the outer wheel seat,
the first limiting bulge and the second limiting bulge are spiral bulges.
The casing includes casing and lower casing, and the casing is upwards protruding to be equipped with the mount pad down, set up the confession in the mount pad the mounting hole of motor cylinder installation on the cutting device.
Go up the casing and bulge downwards and be equipped with vice cavity division wall, the mount pad includes vice cavity division wall down, go up vice cavity division wall and vice cavity division wall butt joint down and form vice cavity.
The knob is arranged on the upper shell and located above the upper auxiliary cavity isolation wall, and the central hole is formed in the upper auxiliary cavity isolation wall.
The cutting device is provided with a protective structure, and the height of the protective structure is lower than that of a blade on the cutting device.
A self-propelled apparatus comprising the height self-adjusting cutting device.
The self-walking equipment is an intelligent mower.
Has the advantages that:
first, the present invention is a highly self-adjusting cutting device that can be automatically raised to reduce resistance and improve the passing performance of a lawnmower when encountering grass areas with relatively high resistance.
Secondly, the limiting structure is a spiral protrusion, when the cutting height of the cutting device needs to be actively adjusted, the outer wheel seat can be driven to rotate for a certain angle through the knob, and the inner wheel seat and the whole device are driven to move upwards through the spiral protrusion.
And thirdly, a protective structure is arranged on the cutting device, the height of the protective structure is lower than that of the blade on the cutting device, and when the cutting device is lifted, the protective structure fixed on the cutting device is lifted simultaneously with the cutting device, so that the protective structure is lower than the height of the cutting blade. Therefore, when a human body approaches to the cutting blade, the human body firstly contacts the protective structure fixed on the cutting device, and safe and effective protection is formed on the human body.
Drawings
FIG. 1 is an exploded view of the overall construction of the mower of the present invention;
FIG. 2 is a cross-sectional view of the overall structure of the mower of the present invention;
FIG. 3 is a cross-sectional view showing an assembly relationship between the height limiting adjustment structure and the entire machine according to the present invention;
FIG. 4 is a cross-sectional view of the cutting device of the present invention in assembled relation with a height-limiting adjustment structure;
FIG. 5 is a sectional view of the position relationship between the cutting assembly and the height limiting adjustment structure when the cutter head is subjected to buoyancy in accordance with the present invention;
the reference signs are: 1. a housing; 101. an upper housing; 102. a lower housing; 2. an outer wheel seat; 201. a first limit protrusion; 3. a spring; 4. a cutting device; 401 inner wheel seat; 4011. and a second limiting bulge.
Detailed Description
Fig. 1 shows an exploded view of the overall structure of the mowing robot, which comprises a housing 1, a height limiting adjustment structure 2, a spring 3 and a cutting device 4.
Referring to fig. 2, which is a cross-sectional view of the overall structure of the mower of the present invention, a height limiting adjustment structure 2 is assembled to a housing 1, a cutting device 4 is assembled to the height limiting adjustment structure 2, and a spring 3 is disposed between the cutting device 4 and the height limiting adjustment structure 2.
As shown in fig. 3, which is a sectional view showing an assembly relationship between the height limiting adjustment structure and the whole machine, the height limiting adjustment structure 2 is assembled in a secondary cavity formed by the upper shell 101 and the lower shell 102, and the translational freedom of the height limiting adjustment structure 2 in the vertical direction is limited by the upper shell 101 and the lower shell 102, and the height limiting adjustment structure is immovable and only can rotate around the central axis thereof to adjust the lowest position of the limiting cutting device.
The height limiting and adjusting structure is an outer wheel seat 2 with a downward opening, and the outer wheel seat 2 is installed in the auxiliary cavity;
the upper part of the cutting device 4 is provided with an inner wheel seat 401;
as shown in fig. 4, which is a sectional view of an assembly relationship between the cutting device 4 and the height limiting adjustment structure, the height limiting adjustment structure includes:
the knob is arranged in the shell and positioned at the upper part of the auxiliary cavity, the top of the auxiliary cavity is provided with a central hole, the bottom of the knob is provided with a force transmission shaft, and the force transmission shaft penetrates through the central hole and is fixedly connected with the outer wheel seat 2;
a first limiting bulge 201 is arranged on the inner circumferential surface of the outer wheel seat 2;
a second limit bulge 4011 is arranged on the outer circumferential surface of the inner wheel seat 401,
the vertical elastic unit is positioned between the inner wheel seat 401 and the outer wheel seat 2;
under the action of the elasticity of the vertical elastic unit and the gravity of the cutting device 4, the second limiting protrusion 4011 is tightly pressed onto the first limiting protrusion 201 on the outer wheel base 2, thereby defining the lowest height of the cutting device 4;
when the cutting device is subjected to the buoyancy of the grass, the cutting device compresses the vertical elastic unit through the inner wheel seat 401 to float the cutting device 4.
As a preferred embodiment of the present invention, the first and second limit protrusions are spiral protrusions.
When the cutting height of the cutting device needs to be actively adjusted, the outer wheel seat 2 can be driven to rotate for a certain angle through the knob, and the inner wheel seat is driven to move upwards through the spiral protrusion.
Fig. 5 is a sectional view showing the position relationship between the cutting device and the height-limiting adjustment structure when the cutter head is subjected to buoyancy, when the mower encounters a high and dense grassland area, the grass generates upward buoyancy on the cutting device 4, and the cutting device 4 compresses the spring 3, so that the whole cutting device 4 is lifted, and the resistance of the grass to the mower is reduced.
After the mower has passed through a high and dense lawn area, the height of the cutting device is returned to the previous height. After the mower passes through this high and dense grass area multiple times, the final grass height is cut to the set height.
As another preferred embodiment of the present invention, the present invention provides a guard structure on the cutting device that is lower in height than the blades on the cutting device. Therefore, when a human body approaches to the cutting blade, the human body firstly contacts the protective structure fixed on the cutting device, and safe and effective protection is formed on the human body.
In the embodiment, the maximum elastic force of the spring does not exceed the weight of the whole mower after the cutting unit is removed, so that the mower can smoothly float when the cutting device contacts dense grass or ground obstacles during operation, the trafficability characteristic is improved, and the ground objects and the cutting device are prevented from being damaged.
Those of ordinary skill in the art will understand that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A height self-adjusting cutting device comprises a shell and a cutting device arranged in the shell and is characterized in that a vertical elastic unit is arranged between the cutting device and the shell, and when the cutting device is subjected to buoyancy of grass, the vertical elastic unit is compressed to enable the cutting device to float upwards, so that resistance of a mower is reduced.
2. The height self-adjusting cutting device of claim 1, further comprising:
the height limiting and adjusting structure (2) is assembled on the shell (1), the cutting device (4) is assembled on the height limiting and adjusting structure (2), and the vertical elastic unit (3) is arranged between the cutting device (4) and the height limiting and adjusting structure (2);
and the limiting structure is positioned between the height limiting adjusting structure (2) and the cutting device (4) and is used for limiting the lowest mowing height of the cutting device.
3. Height self-adjusting cutting device according to claim 2,
an auxiliary cavity is arranged in the shell;
the height limiting and adjusting structure (2) is an outer wheel seat with a downward opening, and the outer wheel seat is installed in the auxiliary cavity;
the upper part of the cutting device (4) is provided with an inner wheel seat;
the limit structure comprises:
the knob is arranged in the shell and positioned at the upper part of the auxiliary cavity, a central hole is formed in the top of the auxiliary cavity, a force transmission shaft is arranged at the bottom of the knob, and the force transmission shaft penetrates through the central hole and is fixedly connected with the outer wheel seat;
the inner circumferential surface of the outer wheel seat is provided with a first limiting bulge;
the peripheral surface of the inner wheel seat is provided with a second limiting bulge,
the vertical elastic unit is positioned between the inner wheel seat and the outer wheel seat;
the second limit bulge is tightly pressed on the first limit bulge on the outer wheel seat under the action of the elasticity of the vertical elastic unit and the gravity of the cutting device (4), so that the lowest height of the cutting device (4) is limited;
when the cutting device is subjected to the buoyancy of grass, the cutting device compresses the vertical elastic unit through the inner wheel seat to enable the cutting device to float upwards.
4. Height self-adjusting cutting device according to claim 3,
the outer wheel seat is fixed in the axial position and can rotate around the central shaft of the outer wheel seat,
the first limiting bulge and the second limiting bulge are spiral bulges.
5. Height self-adjusting cutting device according to claim 4,
the casing includes casing and lower casing, and the casing is upwards protruding to be equipped with the mount pad down, set up the confession in the mount pad the mounting hole of motor cylinder installation on the cutting device.
6. Height self-adjusting cutting device according to claim 5,
go up the casing and bulge downwards and be equipped with vice cavity division wall, the mount pad includes vice cavity division wall down, go up vice cavity division wall and vice cavity division wall butt joint down and form vice cavity.
7. The height self-adjusting cutting device of claim 6, wherein the knob is disposed on the upper housing above the upper secondary cavity dividing wall, the central aperture opening in the upper secondary cavity dividing wall.
8. Height self-adjusting cutting device according to claim 5,
the cutting device is provided with a protective structure, and the height of the protective structure is lower than that of a blade on the cutting device.
9. A self-propelled apparatus comprising a height self-adjusting cutting device as claimed in any one of claims 1 to 8.
10. The self-propelled device of claim 9, wherein the self-propelled device is a smart lawn mower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111091712.5A CN113748829A (en) | 2021-09-17 | 2021-09-17 | Height self-adjusting cutting device and self-walking equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111091712.5A CN113748829A (en) | 2021-09-17 | 2021-09-17 | Height self-adjusting cutting device and self-walking equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113748829A true CN113748829A (en) | 2021-12-07 |
Family
ID=78796130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111091712.5A Pending CN113748829A (en) | 2021-09-17 | 2021-09-17 | Height self-adjusting cutting device and self-walking equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113748829A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1157627A (en) * | 1965-06-23 | 1969-07-09 | Wilkinson Sword Ltd | Improvements relating to Machines for Cutting Vegetable Matter |
| CN201514046U (en) * | 2009-09-22 | 2010-06-23 | 成都前锋电子有限责任公司 | Water inlet steady flow device of water heater |
| CN207476225U (en) * | 2017-10-27 | 2018-06-12 | 苏州科瓴精密机械科技有限公司 | One kind is from walking arrangement |
| US20180184584A1 (en) * | 2017-01-02 | 2018-07-05 | Lg Electronics Inc. | Lawn mower robot |
| CN207854501U (en) * | 2018-01-30 | 2018-09-14 | 南京苏美达智能技术有限公司 | Cutter head height adjustment device and grass trimmer for grass trimmer |
| CN209201543U (en) * | 2018-11-06 | 2019-08-06 | 宁波大学 | Set in cutter and height adaptive adjust household mowing grass catcher |
| CN212753305U (en) * | 2020-07-17 | 2021-03-23 | 南京苏美达智能技术有限公司 | Positioning structure for adjusting device and self-walking equipment |
| CN216017824U (en) * | 2021-09-17 | 2022-03-15 | 南京苏美达智能技术有限公司 | Height self-adjusting cutting device and self-walking equipment |
-
2021
- 2021-09-17 CN CN202111091712.5A patent/CN113748829A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1157627A (en) * | 1965-06-23 | 1969-07-09 | Wilkinson Sword Ltd | Improvements relating to Machines for Cutting Vegetable Matter |
| CN201514046U (en) * | 2009-09-22 | 2010-06-23 | 成都前锋电子有限责任公司 | Water inlet steady flow device of water heater |
| US20180184584A1 (en) * | 2017-01-02 | 2018-07-05 | Lg Electronics Inc. | Lawn mower robot |
| CN207476225U (en) * | 2017-10-27 | 2018-06-12 | 苏州科瓴精密机械科技有限公司 | One kind is from walking arrangement |
| CN207854501U (en) * | 2018-01-30 | 2018-09-14 | 南京苏美达智能技术有限公司 | Cutter head height adjustment device and grass trimmer for grass trimmer |
| CN209201543U (en) * | 2018-11-06 | 2019-08-06 | 宁波大学 | Set in cutter and height adaptive adjust household mowing grass catcher |
| CN212753305U (en) * | 2020-07-17 | 2021-03-23 | 南京苏美达智能技术有限公司 | Positioning structure for adjusting device and self-walking equipment |
| CN216017824U (en) * | 2021-09-17 | 2022-03-15 | 南京苏美达智能技术有限公司 | Height self-adjusting cutting device and self-walking equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216017824U (en) | Height self-adjusting cutting device and self-walking equipment | |
| US5033259A (en) | Blade for rotary lawnmowers and the like | |
| US5491962A (en) | Cutting head assembly | |
| CN207305409U (en) | A kind of municipal administration hay mower | |
| CN114391365A (en) | Blade mounting structure and lawn mower | |
| KR101715860B1 (en) | Shock absorbtive safety blade unit for brush cutter | |
| CN113748829A (en) | Height self-adjusting cutting device and self-walking equipment | |
| CN113366964A (en) | Cutting device and intelligent mower | |
| CN113767751A (en) | Self-walking mowing equipment | |
| CN217509443U (en) | Cutter head assembly and mower with same | |
| SE544203C2 (en) | Means for adjusting cutting height of a powered lawn mower | |
| KR101929668B1 (en) | Lawn Trimmer Cutter | |
| CN210157656U (en) | Self-walking equipment | |
| CN213044202U (en) | Weeding device for municipal afforestation | |
| US3623305A (en) | Mower blade | |
| CN210432423U (en) | Double-end lawn mower | |
| CN216873923U (en) | Blade mounting structure and lawn mower | |
| US2833101A (en) | Rotary disc type electrically driven lawn trimmer or edger | |
| CN219981563U (en) | Additional mowing device of lawn edge mower | |
| CN218277848U (en) | Swing arm type knife rest for mowing vehicle | |
| US3392516A (en) | Blade for mowing | |
| CN217608414U (en) | Safety connection module for lawn mower | |
| CN216492034U (en) | Mowing mechanism, cutting device and traveling operation equipment | |
| CN219780938U (en) | Mower cutter head assembly and mower | |
| KR20200045130A (en) | Mower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |