CN114208482A - Grass cutter - Google Patents
Grass cutter Download PDFInfo
- Publication number
- CN114208482A CN114208482A CN202111515156.XA CN202111515156A CN114208482A CN 114208482 A CN114208482 A CN 114208482A CN 202111515156 A CN202111515156 A CN 202111515156A CN 114208482 A CN114208482 A CN 114208482A
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- Prior art keywords
- gear
- cutting blade
- cutting
- mower
- gears
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- 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.)
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- 244000025254 Cannabis sativa Species 0.000 title description 12
- 238000005520 cutting process Methods 0.000 claims abstract description 142
- 230000005540 biological transmission Effects 0.000 claims abstract description 49
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000010902 straw Substances 0.000 description 6
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000004459 forage Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Images
Classifications
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- 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
- A01D34/67—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 hand-guided by a walking operator
- A01D34/68—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 hand-guided by a walking operator with motor driven cutters or wheels
- A01D34/685—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 hand-guided by a walking operator with motor driven cutters or wheels with two or more cutters
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- 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
Abstract
The invention proposes a lawn mower comprising: a housing; the traveling wheel is rotatably arranged on the shell; at least two cutting blades mounted within the housing; a prime mover for driving the cutting blade to rotate along its axis of rotation; a transmission assembly connecting the prime mover and the cutting blade to transmit power; the transmission assembly comprises at least two gears, the distance between the rotating shafts of two adjacent cutting blades is smaller than the sum of the radiuses of the two cutting blades, and the gears are herringbone gears. The invention has the advantages of helical gear transmission, can eliminate the axial force of the helical gear transmission, solves the problem of difficult manufacture, ensures the cutting balance of the blades, and can ensure that the two groups of blades have the same rotating speed and opposite directions and have higher cutting efficiency.
Description
Technical Field
The invention belongs to the technical field of electric tools, in particular to a mower,
background
The garden tool takes a grass pusher as an example, the grass pusher is common grass cutting equipment, has high efficiency, is simple and convenient to operate, and is suitable for trimming lawns such as greenery fields and the like in sanitation grasslands.
The double-blade mower is a large-scale mowing device, has high working efficiency and large single cutting area, generally adopts a gear transmission mode to transmit power in order to improve the transmission efficiency, but because hard objects such as stones exist on the lawn, when a cutting blade impacts the stones, a transmission system can bear large acting force, and the gears of the transmission system are damaged.
Disclosure of Invention
The invention provides a mower, which aims to improve the condition that a gear of a transmission system of the existing mower is easy to damage.
The invention proposes a lawn mower comprising:
a housing;
the traveling wheel is rotatably arranged on the shell;
at least two cutting blades mounted within the housing;
a prime mover for driving the cutting blade to rotate along its axis of rotation;
a transmission assembly connecting the prime mover and the cutting blade to transmit power;
it is characterized in that the preparation method is characterized in that,
the transmission assembly comprises at least two gears, the distance between the rotating shafts of two adjacent cutting blades is smaller than the sum of the radiuses of the two cutting blades, and the gears are herringbone gears.
In one embodiment of the present invention, the cutting blade includes a first cutting blade and a second cutting blade, with an included angle between the first cutting blade and the second cutting blade ranging between 85 ° and 95 °.
In one embodiment of the invention, the transmission assembly includes a first gear, a second gear, a third gear, and a fourth gear, the first cutting blade being mounted on an output shaft of the first gear, and the second cutting blade being mounted on the fourth gear.
In one embodiment of the invention, the prime mover is mounted in the housing on top of the support base and is connected to the second gear or the third gear.
In one embodiment of the invention, there is a partial overlap area in the cutting area of the first and second cutting blades, the distance of the overlap area being between 20mm and 40 mm.
In one embodiment of the present invention, one end of the output shaft is connected to the first cutting blade or the second cutting blade, and the other end is connected to the gear.
In an embodiment of the present invention, a fixed seat, a flange seat and a bearing are installed at one end of the output shaft connected to the gear, the fixed seat is connected to the support seat in the housing, two sides of the flange seat are respectively connected to the fixed seat and the gear, and the bearing is sleeved on the output shaft and installed in the fixed seat.
In one embodiment of the present invention, the gear comprises a first helical gear and a second helical gear, and the first helical gear and the second helical gear are fixedly connected through a screw.
In one embodiment of the present invention, the first bevel gear and the second bevel gear have opposite rotation directions.
In an embodiment of the present invention, a central hole is formed on the first helical gear, and a central boss matched with the central hole is formed on the second helical gear, and the central boss is located in the central hole.
In an embodiment of the present invention, the first helical gear is provided with a plurality of step holes, and the step holes are uniformly distributed around the central hole.
In an embodiment of the present invention, a plurality of edge bosses are disposed on the second helical gear, and the edge bosses are uniformly distributed around the central boss and correspond to the step holes one by one.
In one embodiment of the invention, the first helical gear and the second helical gear of the gears are meshed with the second helical gear and the first helical gear of the adjacent gear respectively.
The invention provides a mower, wherein a transmission gear consists of a plurality of groups of gears with the same tooth number, cutting blades are respectively arranged at the output ends of the gears at two sides, the radius of each cutting blade is larger than the center distance of the gear, the cutting areas of two groups of cutting blades are overlapped to ensure that the two groups of cutting blades are completely cut, and an included angle between 85 degrees and 95 degrees exists between the two groups of cutting blades to avoid mutual interference between the two groups of cutting blades. When the grass mower mows grass, the blade rotating at high speed generates working load, and the larger load of the blade cannot damage the transmission structure; compared with straight gears or helical gears, the gear transmission structure has the characteristics of meshing balance, small impact, low noise and high bearing capacity, and simultaneously utilizes a pair of helical gears with opposite rotation directions to combine into a gear, so that the gear transmission structure has the advantages of helical gear transmission, can eliminate the axial force of helical gear transmission, and can solve the problem of difficult manufacture. The multiple gears in the straw cutting machine have the same gear number, namely the transmission ratio among the gears is the same, so that the transmitted rotating speed and torque are the same, the cutting balance of the blade is ensured, the rotating speed and direction of the blade are the same, the cutting efficiency is higher, and the cut straw is efficiently collected in the straw collecting bag.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a lawn mower according to an embodiment of the present invention.
Fig. 2 is a schematic partial sectional view of a lawn mower according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of a lawn mower according to an embodiment of the present invention.
Fig. 4 is a partial schematic structural view of a lawn mower according to an embodiment of the present invention.
Fig. 5 is a schematic cross-sectional view of a lawn mower according to an embodiment of the present invention.
Fig. 6 is a schematic cross-sectional view of another angle of the lawn mower according to an embodiment of the present invention.
FIG. 7 is a schematic view of the adjacent gear engagement of the mower according to one embodiment of the present invention.
FIG. 8 is a schematic view of a gear of a lawn mower according to an embodiment of the present invention.
FIG. 9 is a schematic view of another angle structure of a gear in the lawn mower according to an embodiment of the present invention.
Description of reference numerals:
a chassis 200; a gear transmission mechanism 300; a traveling wheel 1001; a push rod 1002; a support base 10; a first gear 21; a first output shaft 211; a fixed base 212; a flange seat 213; a first bearing 214; a second bearing 215; a first bevel gear 201; a second bevel gear 202; a screw 203; a central bore 2011; a plurality of stepped holes 2012; a central boss 2021; a plurality of edge bosses 2022; a second gear 22; a third gear 23; a rotating shaft 231; a fourth gear 24; a second output shaft 241; a prime mover 25; a motor shaft 251; a blade mount 31; a spacer 32; a first cutting blade 30; a second cutting blade 40.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
The invention provides a mower, which aims to solve the problem that a transmission system of the existing mower is easy to damage. In order to solve the problem that the existing transmission system is damaged, the simplest way is to increase the meshing area of the gears, for example, a helical gear is adopted, but after a blade is installed on the helical gear, the torque of a motor is transmitted to the blade through the helical gear, the blade generates large load when in work, the helical gear generates large axial force when bearing the load, the extra axial force can generate large damage to the whole transmission device, and the grass pushing machine has the problem that the load resisting capacity of straight teeth and helical teeth is insufficient in the test that the blade impacts an iron rod, so that the damage of the gear transmission structure can be caused. As shown in fig. 1 to 9, a lawn mower includes a housing 200, and a road wheel 1001 rotatably mounted on the housing 200 to enable the lawn mower to move along the ground. A cutting blade is mounted within a cutting cavity formed by the housing 200, the cutting blade rotating to effect cutting of grass blades. A prime mover 25 is mounted to the housing 200 for driving the cutting blade in rotation about its axis of rotation, and in one embodiment, the prime mover 25 is an electric motor. A transmission assembly is mounted on the housing 200 to transmit power of the prime mover to the cutting blade to drive the cutting blade to rotate. The transmission assembly is a gear transmission 300. The rear of the mower is also fitted with a push bar 1002 to facilitate pushing the mower.
In the present embodiment, as shown in fig. 3, the gear transmission mechanism 300 includes a support 10 and at least two gears, the cutting blades are mounted on the support 10 in the housing 200, connected with the gears, and driven by the prime mover 25, in the present embodiment, the number of the cutting blades is at least two, and are respectively connected to different gears, the distance between the rotating shafts of two adjacent cutting blades is less than the sum of the radii of the two cutting blades, that is, there is an overlapped cutting area between two cutting blades, and there is an included angle between the other two cutting blades in the range of 85 ° to 95 ° to avoid mutual interference between the two cutting blades, and it should be noted that the gears are herringbone gears.
As shown in fig. 3, in the present embodiment, the cutting blades are, for example, a first cutting blade 30 and a second cutting blade 40, and the number of gears is, for example, 4, and four gears are taken as an example for explanation, and in the present embodiment, two bevel gears are combined to form the cutting blade. Specifically, a plurality of sets of the gears are installed in the supporting seat 10, centers of the plurality of sets of the gears are located on the same straight line and are sequentially engaged, the first cutting blade 30 and the second cutting blade 40 are respectively installed on gears on both sides of the plurality of sets of the gears, and cutting radii of the first cutting blade 30 and the second cutting blade 40 are larger than a center distance between two adjacent gears.
As shown in fig. 3 to 6, in this embodiment, specifically, the plurality of sets of gears at least include a first gear 21, a second gear 22, a third gear 23 and a fourth gear 24, centers of the first gear 21, the second gear 22, the third gear 23 and the fourth gear 24 are located on the same straight line, in this embodiment, the second gear 22 is respectively engaged with the first gear 21 and the third gear 23, the first gear 21 and the third gear 23 are located on two sides of the second gear 22, the second gear 22 or the third gear 23 is rotatably mounted on the support base 10 through a rotating shaft 231, the fourth gear 24 is engaged with the third gear 23, and the fourth gear 24 is located on a side of the third gear 23 away from the second gear 22, that is, the first gear 21 and the fourth gear 24 are gears on two sides of the plurality of sets of gears, for attachment of a cutting blade.
As shown in fig. 3 to 6, it should be noted that, in this embodiment, the first gear 21, the second gear 22, the third gear 23 and the fourth gear 24 have the same number of teeth, and the gear combinations with the same number of teeth, that is, the transmission ratios, have the same transmission speed and torque, so that the rotation speed and torque transmitted by the gears are the same, so as to ensure the balance of the cutting blade cutting, and multiple sets of the same gear sets are meshed with each other for transmission, so as to ensure that the rotation speeds of the cutting blades connected to the gears on both sides are the same, but the directions are opposite, so that the cutting efficiency is higher, and the cut forage is ensured to be efficiently collected in the grass collecting bag.
As shown in fig. 3 to 6, in the present embodiment, specifically, the first gear 21 is connected to the first cutting blade 30 through a first output shaft 211, the fourth gear 24 is connected to the second cutting blade 40 through a second output shaft 241, a prime mover 25 is connected to the second gear 22 or the third gear 23, and the prime mover 25 is mounted on the top of the support base 10 and connected to the second gear 22 or the third gear 23 through a motor shaft 251.
As shown in fig. 3 to 6, in the present embodiment, the prime mover 25 is connected to the second gear 22 through a motor shaft 251, drives the second gear 22 through the prime mover 25, and drives the first cutting blade 30 and the second cutting blade 40 through meshing transmission between different gears.
As shown in fig. 3 to 6, in the present embodiment, a coupling structure of the first cutting blade 30 to the first gear 21 via the first output shaft 211 is the same as a coupling structure of the second cutting blade 40 to the fourth gear 24 via the second output shaft 241, and in the present embodiment, a coupling structure of the first cutting blade 30 to the first gear 21 via the first output shaft 211 is described as an example, and one end of the first output shaft 211 is coupled to the first cutting blade 30, and the other end is coupled to the first gear 21.
As shown in fig. 3 to 6, in this embodiment, specifically, a fixed seat 212, a flange seat 213 and a first bearing 214 are installed at one end of the first output shaft 211 connected to the gear, the fixed seat 212 is fixedly installed inside the supporting seat 10 and located below the first gear 21, the flange seat 213 is installed between the fixed seat 212 and the first gear 21 and is sleeved on the first output shaft 211, one side portion of the flange seat 213 extends into the central hole of the first gear 21, the other side portion of the flange seat 213 is located in the central hole of the fixed seat 212, the flange seat 213 is fixedly connected to the first gear 21, one end of the first output shaft 211 extends into the central hole of the flange seat 213 and is connected to the flange seat 213 through a key joint, so as to perform transmission, and the first bearing 214 is installed in the fixed seat 212, and is sleeved on the first output shaft 211 to ensure that the rotation process of the first output shaft 211 is stable and smooth.
As shown in fig. 3 to 6, in this embodiment, the supporting seat 10 extends below the first gear 21 and the fourth gear 24 to form an output shaft accommodating portion 11 for accommodating the first output shaft 211 or the second output shaft 241, and a second bearing 215 is also provided at one end of the first output shaft 211 connected to the first cutting blade 30, the second bearing 215 is mounted at the bottom of the output shaft accommodating portion 11, and in addition, the first cutting blade 30 is fixedly connected to the first output shaft 211 through cooperation among a blade mounting seat 31, a gasket 32 and a fastening bolt, specifically, the blade mounting seat 31 is sleeved on the first output shaft 211, and a planar structure 311 is provided on the inner wall of the central hole of the blade mounting seat 31 to be in fit connection with the first output shaft 211, so as to prevent relative rotation between the first output shaft 211 and the blade mounting seat 31, therefore, the working efficiency is reduced, the first cutting blade 30 is mounted at the bottom of the blade mounting seat 31, the first cutting blade 30 and the blade mounting seat 31 are fixedly mounted together through a fastening bolt, and a gasket 32 is arranged between the fastening bolt and the first cutting blade 30.
As shown in fig. 3 to 6, in the present embodiment, the first cutting blade 30 is mounted on the first gear 21, the second cutting blade 40 is mounted on the fourth gear 24, when the first cutting blade 30 and the second cutting blade 40 are installed, it is necessary that a certain angle a exists between the first cutting blade 30 and the second cutting blade 40, to avoid interference between the first cutting blade 30 and the second cutting blade 40 during cutting, and, in particular, the angle alpha between the first cutting blade 30 and the second cutting blade 40 is for example set between 85 deg. and 95 deg., in the present embodiment, the angle α between the first cutting blade 30 and the second cutting blade 40 is preferably 90 °, that is, the first cutting blade 30 and the second cutting blade 40 are perpendicular to each other.
As shown in fig. 3 to 6, it should be further noted that, in the present embodiment, the cutting area a formed by the first cutting blade 30 according to the cutting radius R thereof, and the cutting area B formed by the second cutting blade 40 according to the cutting radius R thereof, in the present embodiment, the cutting radius R of the first cutting blade 30 and the second cutting blade 40 is greater than the center distance D between two adjacent gears, taking the first cutting blade 30 as an example, the cutting radius R of the first cutting blade 30 is the distance from the rotation center of the first cutting blade 30 to the outermost end of the first cutting blade 30, an area formed by one rotation of the rotation center of the first cutting blade 30 with the cutting radius R is the cutting area a of the first cutting blade 30, in the present embodiment, a partially overlapped area C exists between the cutting area a of the first cutting blade 30 and the cutting area B of the second cutting blade 40, the distance L of the overlapping area C is between 20mm and 40mm to ensure a clean cut.
As shown in fig. 6 to 9, in the present embodiment, the first gear 21, the second gear 22, the third gear 23 and the fourth gear 24 have the same structure, and the first gear 21 is taken as an example to explain, the first gear 21 includes a first helical gear 201 and a second helical gear 202, the first helical gear 201 and the second helical gear 202 are fixedly connected by a screw 203 to form the gear, and the first helical gear 201 and the second helical gear 202 have the same number of teeth and opposite rotation directions, and a pair of helical gears with opposite rotation directions are combined into a gear, so that the gear has the advantages of helical gear transmission, and at the same time, the axial force of helical gear transmission can be eliminated, and the first helical gear 201 and the second helical gear 202 with opposite rotation directions are combined coaxially to form a gear, thereby solving the problem of difficulty in manufacturing.
As shown in fig. 6 to 9, in this embodiment, a central hole 2011 and a plurality of stepped holes 2012 are provided on the first helical gear 201, and the plurality of stepped holes 2012 are uniformly distributed around the central hole 2011, a central boss 2021 and a plurality of edge bosses 2022 are provided on the second helical gear 202, which are matched with the central hole 2011 and the stepped holes 2012, the plurality of edge bosses 2022 are uniformly distributed around the central boss 2021 and correspond to the plurality of stepped holes 2012 one by one, when the first helical gear 201 and the second helical gear 202 are assembled to form the gear, the central boss 2021 is located in the central hole 2011, the edge bosses 2022 are located in the stepped holes 2012, and then the screw 203 is used to perform fixed mounting, so as to ensure that the assembly positioning between the first helical gear 201 and the second helical gear 202 is accurate and firm, thereby ensuring the stability and balance of the transmission process. In the present embodiment, the first helical gear 201 and the second helical gear 202 of the gears are engaged with the second helical gear 202 and the first helical gear 201 of the adjacent gears, respectively, and for the purpose of explanation, the engagement between the first gear 21 and the second gear 22 is the first helical gear 201 of the first gear 21 is engaged with the second helical gear 202 of the second gear 22, and the engagement between the second helical gear 202 of the first gear 21 and the first helical gear 201 of the second gear 22, so that the double helical gear transmission mechanism has the characteristics of meshing balance, small impact, small noise and large load-bearing capacity compared with the straight gear transmission or the helical gear transmission.
The invention provides a mower, wherein a transmission gear consists of a plurality of groups of gears with the same tooth number, cutting blades are respectively arranged at the output ends of the gears at two sides, the radius of each cutting blade is larger than the center distance of the gear, the cutting areas of two groups of cutting blades are overlapped to ensure that the two groups of cutting blades are completely cut, and an included angle between 85 degrees and 95 degrees exists between the two groups of cutting blades to avoid mutual interference between the two groups of cutting blades. When the grass mower mows grass, the blade rotating at high speed generates working load, and the larger load of the blade cannot damage the transmission structure.
Compared with straight gears or helical gears, the gear transmission structure has the characteristics of meshing balance, small impact, low noise and high bearing capacity, and simultaneously utilizes a pair of helical gears with opposite rotation directions to combine into a gear, so that the gear transmission structure has the advantages of helical gear transmission, can eliminate the axial force of helical gear transmission, and can solve the problem of difficult manufacture. The multiple gears in the straw cutting machine have the same gear number, namely the transmission ratio among the gears is the same, so that the transmitted rotating speed and torque are the same, the cutting balance of the blade is ensured, the rotating speed and direction of the blade are the same, the cutting efficiency is higher, and the cut straw is efficiently collected in the straw collecting bag.
The above description is only a preferred embodiment of the present application and a description of the applied technical principle, and it should be understood by those skilled in the art that the scope of the present application is not limited to the technical solution of the specific combination of the above technical features, and also covers other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept, for example, the technical solutions formed by mutually replacing the above technical features (but not limited to) having similar functions disclosed in the present application.
Other technical features than those described in the specification are known to those skilled in the art, and are not described herein in detail in order to highlight the innovative features of the present invention.
Claims (13)
1. A lawn mower, comprising:
a housing;
the traveling wheel is rotatably arranged on the shell;
at least two cutting blades mounted within the housing;
a prime mover for driving the cutting blade to rotate along its axis of rotation;
a transmission assembly connecting the prime mover and the cutting blade to transmit power;
it is characterized in that the preparation method is characterized in that,
the transmission assembly comprises at least two gears, the distance between the rotating shafts of two adjacent cutting blades is smaller than the sum of the radiuses of the two cutting blades, and the gears are herringbone gears.
2. The mower of claim 1 wherein the cutting blades include a first cutting blade and a second cutting blade, the first cutting blade and the second cutting blade having an included angle therebetween in the range of 85 ° to 95 °.
3. The mower of claim 2 wherein the transmission assembly includes a first gear, a second gear, a third gear, and a fourth gear, the first cutting blade mounted on an output shaft of the first gear, the second cutting blade mounted on the fourth gear.
4. The mower of claim 3 wherein the prime mover is mounted within the housing on top of the support base and is connected to the second or third gear.
5. A lawnmower as claimed in claim 3, wherein the cutting areas of the first and second cutting blades have a partial overlap, the overlap being between 20mm and 40 mm.
6. The mower of claim 5 wherein the output shaft is coupled to the first or second cutting blade at one end and to the gear at the other end.
7. The mower according to claim 6, wherein a fixed seat, a flange seat and a bearing are mounted on one end of the output shaft connected with the gear, the fixed seat is connected with a supporting seat in the housing, two sides of the flange seat are respectively connected with the fixed seat and the gear, and the bearing is sleeved on the output shaft and mounted in the fixed seat.
8. The mower of claim 1, wherein the gear comprises a first beveled gear and a second beveled gear, and wherein the first beveled gear and the second beveled gear are fixedly coupled by a screw.
9. The mower of claim 8 wherein said first and second beveled gears have opposite rotational directions.
10. The mower of claim 8 wherein said first beveled gear has a central aperture and said second beveled gear has a central boss that mates with said central aperture, said central boss being located within said central aperture.
11. The mower of claim 10 wherein said first beveled gear has a plurality of stepped holes formed therein, said plurality of stepped holes being evenly distributed about said central hole.
12. The mower of claim 11 wherein said second beveled gear has a plurality of edge bosses disposed thereon, said edge bosses being evenly distributed about said central boss and in one-to-one correspondence with said step holes.
13. The mower of claim 8, wherein a first helical gear and a second helical gear of the gears are intermeshed with a second helical gear and a first helical gear of an adjacent gear, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111515156.XA CN114208482A (en) | 2021-12-10 | 2021-12-10 | Grass cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111515156.XA CN114208482A (en) | 2021-12-10 | 2021-12-10 | Grass cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114208482A true CN114208482A (en) | 2022-03-22 |
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|---|---|---|---|
| CN202111515156.XA Pending CN114208482A (en) | 2021-12-10 | 2021-12-10 | Grass cutter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114571276A (en) * | 2022-05-05 | 2022-06-03 | 佛山市南海富大精密机械有限公司 | Five-axis numerical control cutting machine |
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- 2021-12-10 CN CN202111515156.XA patent/CN114208482A/en active Pending
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| FR479533A (en) * | 1915-08-14 | 1916-04-07 | Automobiles Et Cycles Peugeot | Special construction of the chevron gears |
| JPH09277115A (en) * | 1996-04-12 | 1997-10-28 | Nippon Steel Corp | Drum type flying shearing machine |
| CN206808087U (en) * | 2017-04-18 | 2017-12-29 | 常州格力博有限公司 | Double knife mower |
| CN107387730A (en) * | 2017-09-21 | 2017-11-24 | 重庆威能奇传动技术有限公司 | The herringbone bear and its processing method of combining structure |
| CN107989884A (en) * | 2017-11-26 | 2018-05-04 | 高邮市精标齿轮制造有限公司 | A kind of integral herringbone gear shaft |
| CN110720300A (en) * | 2019-11-07 | 2020-01-24 | 常州格力博有限公司 | Grass pushing machine |
| CN110771353A (en) * | 2019-12-04 | 2020-02-11 | 常州格力博有限公司 | Grass pushing machine |
| CN212728068U (en) * | 2020-06-17 | 2021-03-19 | 格力博(江苏)股份有限公司 | Mower transmission device and mower |
| CN111692320A (en) * | 2020-06-18 | 2020-09-22 | 郭爱贵 | Multifunctional high-speed gear box for turboshaft engine test |
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| CN114571276A (en) * | 2022-05-05 | 2022-06-03 | 佛山市南海富大精密机械有限公司 | Five-axis numerical control cutting machine |
| CN114571276B (en) * | 2022-05-05 | 2022-08-05 | 佛山市南海富大精密机械有限公司 | Five-axis numerical control cutting machine |
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