CN211353116U - Cutter shaft structure for flail knife type mower - Google Patents
Cutter shaft structure for flail knife type mower Download PDFInfo
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- CN211353116U CN211353116U CN201922120475.5U CN201922120475U CN211353116U CN 211353116 U CN211353116 U CN 211353116U CN 201922120475 U CN201922120475 U CN 201922120475U CN 211353116 U CN211353116 U CN 211353116U
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Abstract
The utility model discloses a knife shaft structure for flail knife type mower, which comprises a knife shaft welding piece, wherein a plurality of rows of mounting seats are uniformly distributed on the circumferential surface of the knife shaft welding piece along the circumferential direction of the knife shaft welding piece, a plurality of mounting seats are uniformly distributed on each row of mounting seats on the circumferential surface of the knife shaft welding piece along a bidirectional spiral line, each bidirectional spiral line consists of a first spiral line and a second spiral line which are spiral in opposite directions, and the intersection point of the first spiral line and the second spiral line is positioned in the middle of the knife shaft welding piece; the mounting seat is connected with the blade through a quick-release structure. The utility model discloses simple structure, design benefit because the blade of mowing is two-way spiral arrangement for the arbor atress is more balanced, increases the life of arbor, and makes the material that the cutting got off concentrate the middle part of arbor to from both sides along the spiral.
Description
Technical Field
The utility model relates to a flail knife formula lawn mower, more specifically say, relate to an arbor structure for flail knife formula lawn mower.
Background
The lawn mowers are very important in agricultural production, landscaping, road cleaning, forest prevention and the like, and can be divided into hob type lawn mowers, rotary-blade lawn mowers, side-hung lawn mowers and flail type lawn mowers according to the lawn mowing modes. The cutter shaft structure in the existing cutter-throwing mower comprises a cutter shaft welding piece, wherein a plurality of groups of cutter shaft seats are uniformly distributed on the circumferential surface of the cutter shaft welding piece, each group of cutter shaft seats are uniformly distributed on the circumferential surface of the cutter shaft welding piece along the same spiral direction, and the cutter shaft of the one-way spiral can make materials deviate to one side of the spiral direction and make the cutter shaft unbalanced in stress.
Disclosure of Invention
1. Technical problem to be solved by the utility model
An object of the utility model is to overcome foretell not enough, provide an arbor structure for flail knife formula lawn mower, adopt the technical scheme of the utility model, simple structure, design benefit is because the blade of mowing is two-way spiral arrangement for the arbor atress is more balanced, increases the life of arbor, and makes the material that the cutting got off concentrate the middle part of arbor to from both sides along the spiral.
2. Technical scheme
In order to achieve the above purpose, the utility model provides a technical scheme does:
the utility model discloses a knife shaft structure for flail knife formula lawn mower, including the arbor seam piece, the periphery of arbor seam piece on along its circumference equipartition have a plurality of rows of mount pads, each row of mount pad has a plurality of mount pads along a two-way helix equipartition on the periphery of arbor seam piece, wherein every two-way helix comprises the first helix and the second helix of opposite direction spiral, the first helix and the second helix intersect and locate at the middle part of arbor seam piece; the mounting seat is provided with a blade.
Furthermore, the mounting seat is connected with the blade through a quick-release structure.
Furthermore, the quick-release structure comprises a D-shaped bolt, a blade tripping position, a blade working position and a welding position; the arc rod section of the D-shaped bolt is rotatably connected with the blade; the horizontal rod section of the D-shaped bolt can rotatably penetrate through the mounting seat and then is connected with the nut, and the blade tripping position, the blade working position and the welding position are formed on the mounting seat; the welding position is fixedly connected with the cutter shaft welding piece; when the horizontal rod section of the D-shaped bolt is positioned at the blade release position, a gap I which is enough for the blade to be separated from the D-shaped bolt is formed between the end surface of the arc rod section of the D-shaped bolt and the outer surface of the blade release position on the mounting seat; when the horizontal rod section of the D-shaped bolt is located at the working position of the blade, a gap II which is not enough for the blade to be separated from the D-shaped bolt exists between the end surface of the arc rod section of the D-shaped bolt and the outer surface of the blade working position on the mounting seat.
Furthermore, the mounting end of the blade is provided with a mounting hole for connecting with the arc rod section of the D-shaped bolt, and one side of the mounting hole on the mounting end of the blade is provided with a clamping inlet communicated with the mounting hole; the diameter of the arc rod section of the D-shaped bolt is larger than the width of the clamping inlet, and the end part of the arc rod section of the D-shaped bolt is processed into a tripping section which can pass through the clamping inlet; the sum of the length of the tripping section and the distance of the gap I is less than the thickness of the blade; the distance of the gap II is smaller than the thickness of the blade, and the sum of the length of the tripping section and the distance of the gap II is larger than the thickness of the blade.
Furthermore, two inclined planes which are arranged relative to the axis of the horizontal rod section are processed on the end part of the arc rod section of the D-shaped bolt to form a tripping section, and the length of the tripping section is the height of the inclined planes.
Furthermore, the mounting seat is a triangular structure formed by bending a steel plate, one side edge of the mounting seat is a welding position for fixedly connecting with the cutter shaft welding piece, the remaining two side edges of the mounting seat are blade tripping positions, a corner formed by the remaining two side edges on the mounting seat is a blade working position, and the inner radius of the corner is smaller than the radius of the horizontal rod section of the D-shaped bolt.
Further, the blade includes a mowing blade.
Furthermore, the blades also comprise fan blades, a plurality of rows of fan blades are distributed on the circumferential surface of the cutter shaft welding piece along the circumferential direction of the cutter shaft welding piece, a plurality of rows of mowing blades are distributed on the circumferential surface of the cutter shaft welding piece along the circumferential direction of the cutter shaft welding piece, and each row of exhausting fan blades and each row of mowing blades are distributed at intervals along the circumferential direction.
Furthermore, the mowing blade consists of two blades which are oppositely arranged, and the mowing blade is divided into two types, namely a Y-shaped mowing blade and a T-shaped mowing blade; the cutter shaft welding piece is characterized in that a plurality of rows of Y-shaped mowing blades are distributed on the circumferential surface of the cutter shaft welding piece along the circumferential direction of the cutter shaft welding piece, a plurality of rows of T-shaped mowing blades are distributed on the circumferential surface of the cutter shaft welding piece along the circumferential direction of the cutter shaft welding piece, and each row of Y-shaped mowing blades and each row of T-shaped mowing blades are distributed at intervals along the circumferential direction.
3. Advantageous effects
Adopt the technical scheme provided by the utility model, compare with existing well-known technique, have following beneficial effect:
(1) the utility model relates to a knife shaft structure for a flail knife type mower, a plurality of rows of mounting seats are evenly distributed on the circumferential surface of a knife shaft welding piece along the circumferential direction of the knife shaft welding piece, a plurality of mounting seats are evenly distributed on each row of mounting seats on the circumferential surface of the knife shaft welding piece along a bidirectional spiral line, wherein each bidirectional helical line consists of a first helical line and a second helical line which are helical in opposite directions, the intersection point of the first helical line and the second helical line is positioned in the middle of the cutter shaft welding piece, the mounting seat is connected with the blades through a quick-release structure, the blades comprise mowing blades, the structure is simple, the design is ingenious, because the mounting seats are arranged in a bidirectional spiral way, the mowing blades arranged on the mounting seats are also arranged in a bidirectional spiral way, further, the stress of the cutter shaft is more balanced, the service life of the cutter shaft is prolonged, and cut materials are intensively thrown to the middle of the cutter shaft from two sides along the spiral direction;
(2) the utility model discloses a knife shaft structure for flail knife formula lawn mower, link to each other with the blade through rapid disassembly structure on its mount pad, it is convenient to make the blade change through rapid disassembly structure, when the horizontal pole section of D shape bolt rotates blade work position, at this moment because there is not enough clearance II that the blade breaks away from the D shape bolt between the circular arc pole section terminal surface of D shape bolt and the surface of mount pad, therefore can guarantee that the blade can not drop off under operating condition, and when needing to change the blade, need to rotate the horizontal pole section of D shape bolt to blade trip position, at this moment because there is enough clearance I that the blade breaks away from the D shape bolt between the circular arc pole section terminal surface of D shape bolt and the surface of mount pad, therefore the blade can take off and can more change new blade simultaneously, realized the swift mesh of blade change;
(3) the utility model discloses a knife shaft structure for a flail knife type mower, wherein a mounting hole is arranged at the mounting end of a mowing blade, and a clamping inlet communicated with the mounting hole is arranged at one side of the mounting hole on the mounting end of the mowing blade; the diameter of the arc rod section of the D-shaped bolt is larger than the width of the clamping inlet, the end part of the arc rod section of the D-shaped bolt is processed into a tripping section which can pass through the clamping inlet, the structure is simple, the design is ingenious, when the horizontal rod section of the D-shaped bolt is at the blade working position, the sum of the length of the tripping section and the distance of the gap II is smaller than the thickness of the blade, so that the clamping inlet on the blade cannot be separated from the tripping section, and when the horizontal rod section of the D-shaped bolt is at the blade tripping position, the distance of the gap I is smaller than the thickness of the blade, and the sum of the length of the tripping section and the distance of the gap I is larger than the thickness of the blade, so that the blade is swung, the clamping inlet on the blade can be separated from the tripping;
(4) the utility model discloses a knife shaft structure for flail knife type mower, the mounting seat is a triangle structure formed by bending a steel plate, one side of the mounting seat is a welding position for fixedly connecting with a knife shaft welding piece in the mower, the remaining two sides of the mounting seat are blade tripping positions, the corner formed by the remaining two sides on the mounting seat is a blade working position, and the inner radius of the corner is smaller than the radius of the horizontal rod section, the structure is simple, and the manufacture is convenient;
(5) the utility model discloses an arbor structure for flail knife formula lawn mower, its blade still include fan blade, and it has multirow fan blade to distribute along its circumference on the periphery of arbor seam piece, and every exhaust fan blade and every row of blade of mowing link to each other with the mount pad through quick detach structure along circumference interval distribution, and fan blade produces wind-force under the drive of arbor, can blow the material for convenient follow-up collection to the material.
Drawings
Fig. 1 is a front view of a cutter shaft structure for a flail mower of the present invention;
fig. 2 is a perspective view of the cutter shaft structure for the flail mower of the present invention;
FIG. 3 is a front view of the quick release structure connection in the cutter shaft structure of the flail mower of the present invention;
FIG. 4 is a side view of the quick release structure connection in the cutter shaft structure for the flail mower of the present invention;
fig. 5 is a side view of the utility model discloses a quick detach structure dropout in arbor structure for flail mower.
The reference numerals in the schematic drawings illustrate: 1. a cutter shaft welding piece; 2. a mounting seat; 2-1, welding positions; 2-2, a blade tripping position; 2-3, blade working positions; 3-1, a first spiral; 3-2, a second helix; 4. a D-bolt; 4-1, a tripping section; 4-2, inclined plane; 5. a nut; 6. a gap I; 7. a gap II; 8-1, mounting holes; 8-2, clamping into a mouth; 9. a fan blade; 10. a Y-shaped mowing blade; 11. t-shaped mowing blades.
Detailed Description
For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
Examples
With reference to fig. 1 and 2, the cutter shaft structure for the flail-knife mower of the present embodiment includes a cutter shaft welded part 1, a plurality of rows of mounting seats 2 are uniformly distributed on the circumferential surface of the cutter shaft welded part 1 along the circumferential direction thereof, each row of mounting seats 2 is uniformly distributed on the circumferential surface of the cutter shaft welded part 1 along a bidirectional helix line with a plurality of mounting seats 2, wherein each bidirectional helix line is composed of a first helix line 3-1 and a second helix line 3-2 which are helical in opposite directions, and the intersection point of the first helix line 3-1 and the second helix line 3-2 is located in the middle of the cutter shaft welded part 1; the blades are arranged on the mounting seat 2 and comprise mowing blades, the structure is simple, the design is ingenious, and the mowing blades arranged on the mounting seat 2 are arranged in a bidirectional spiral manner due to the fact that the mounting seat 2 is arranged in the bidirectional spiral manner, so that the stress of the cutter shaft is more balanced, the service life of the cutter shaft is prolonged, and cut materials are intensively thrown to the middle of the cutter shaft from two sides along the spiral direction; the mowing tool comprises two mowing tools which are oppositely arranged, and the mowing tools are divided into two types, namely a Y-shaped mowing tool 10 and a T-shaped mowing tool 11; a plurality of rows of Y-shaped mowing blades 10 are distributed on the circumferential surface of the cutter shaft welding piece 1 along the circumferential direction, a plurality of rows of T-shaped mowing blades 11 are distributed on the circumferential surface of the cutter shaft welding piece 1 along the circumferential direction, and each row of Y-shaped mowing blades 10 and each row of T-shaped mowing blades 11 are distributed at intervals along the circumferential direction;
continuing and combining with fig. 3, 4 and 5, the mounting base 2 is connected with the blade through a quick-release structure, and the blade is convenient to replace through the quick-release structure; the quick-release structure comprises a D-shaped bolt 4, a blade tripping position 2-2, a blade working position 2-3 and a welding position 2-1, wherein the arc rod section of the D-shaped bolt 4 is rotatably connected with the blade; the horizontal rod section of the D-shaped bolt 4 rotatably penetrates through the mounting seat 2 and then is connected with the nut 5, and the blade tripping position 2-2, the blade working position 2-3 and the welding position 2-1 are formed on the mounting seat 2; the welding position 2-1 is fixedly connected with the cutter shaft welding part 1, when the horizontal rod section of the D-shaped bolt 4 is positioned at the blade tripping position 2-2, a gap I6 which is enough for the blade to be separated from the D-shaped bolt 4 exists between the end surface of the arc rod section of the D-shaped bolt 4 and the outer surface of the blade tripping position 2-2 on the mounting seat 2, when the horizontal rod section of the D-shaped bolt 4 is positioned at the blade working position, a gap II 7 which is not enough for the blade to be separated from the D-shaped bolt 4 exists between the end surface of the arc rod section of the D-shaped bolt 4 and the outer surface of the blade working position on the mounting seat 2, when the horizontal rod section of the D-shaped bolt rotates to the blade working position, because a gap II which is not enough for the blade to be separated from the D-shaped bolt exists between the end surface of the arc rod section of the D-shaped bolt and the outer surface of the mounting seat, the mowing blade can be ensured not to be tripped, at the moment, because a gap I which is enough for the blade to be separated from the D-shaped bolt exists between the end surface of the arc rod section of the D-shaped bolt and the outer surface of the mounting seat, the blade can be taken down and replaced by a new blade, and the aim of quickly replacing the blade is fulfilled;
the mounting seat 2 is of a triangular structure formed by bending a steel plate, one side edge of the mounting seat 2 is a welding position 2-1 used for being fixedly connected with a cutter shaft welding piece 1 in the mower, the remaining two side edges of the mounting seat 2 are blade tripping positions 2-2, a corner formed by the remaining two side edges on the mounting seat 2 is a blade working position 2-3, and the inner radius of the corner is smaller than that of the horizontal rod section; the mounting end of the blade is provided with a mounting hole 8-1, and one side of the mounting end of the blade, which is positioned at the mounting hole 8-1, is provided with a clamping inlet 8-2 communicated with the mounting hole 8-1; the diameter of the arc rod section of the D-shaped bolt 4 is larger than the width of the clamping opening 8-2, and the end part of the arc rod section of the D-shaped bolt 4 is processed into a tripping section 4-1 which can pass through the clamping opening 8-2; the sum of the length of the tripping section 4-1 and the distance of the gap I6 is less than the thickness of the blade; the distance of the clearance II 7 is smaller than the thickness of the blade, and the sum of the length of the tripping section 4-1 and the distance of the clearance II 7 is larger than the thickness of the blade, the structure is simple, the design is ingenious, when the horizontal rod section of the D-shaped bolt is at the working position of the blade, the sum of the length of the tripping section and the distance of the clearance II is smaller than the thickness of the blade, so that the clamping inlet on the blade cannot be separated from the tripping section, and when the horizontal rod section of the D-shaped bolt is at the tripping position of the blade, the distance of the clearance I is smaller than the thickness of the blade, and the sum of the length of the tripping section and the distance of the clearance I is larger than the thickness of the blade, so that the blade is swung, the clamping inlet on the blade can be; two inclined planes 4-2 arranged opposite to the axis of the horizontal rod section are processed on the end part of the arc rod section of the D-shaped bolt 4 to form a tripping section 4-1, and the length of the tripping section 4-1 is the height of the inclined plane 4-2;
continuing to fig. 1, in order to blow the material and facilitate the subsequent collection of the material, the blade also includes the fan blade 9, distribute multirow fan blade 9 on the circumferential surface of the arbor weldment 1 along its circumference, distribute multirow mowing blade on the circumferential surface of the arbor weldment 1 along its circumference, every exhaust fan blade 9 and every row mowing blade are distributed along the circumference interval; the blades of the fan are driven by the cutter shaft to generate wind power, so that materials can be blown, and the subsequent collection of the materials is facilitated.
The utility model discloses an arbor structure for flail knife formula lawn mower, simple structure, design benefit because the blade of mowing is two-way spiral arrangement for the arbor atress is more balanced, increases the life of arbor, and makes the material that the cutting got off concentrate the middle part of arbor to from both sides along the spiral.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.
Claims (9)
1. The utility model provides an arbor structure for flail knife formula lawn mower, includes arbor seam piece (1), its characterized in that: a plurality of rows of mounting seats (2) are uniformly distributed on the circumferential surface of the cutter shaft welding piece (1) along the circumferential direction of the cutter shaft welding piece, a plurality of mounting seats (2) are uniformly distributed on each row of mounting seats (2) on the circumferential surface of the cutter shaft welding piece (1) along a bidirectional spiral line, each bidirectional spiral line consists of a first spiral line (3-1) and a second spiral line (3-2) which are spiral in opposite directions, and the intersection point of the first spiral line (3-1) and the second spiral line (3-2) is positioned in the middle of the cutter shaft welding piece (1); the mounting seat (2) is provided with blades.
2. The cutter shaft structure for the flail-knife type mower according to claim 1, wherein: the mounting seat (2) is connected with the blade through a quick-release structure.
3. The cutter shaft structure for the flail-knife type mower according to claim 2, wherein: the quick-release structure comprises a D-shaped bolt (4), a blade tripping position (2-2), a blade working position (2-3) and a welding position (2-1); the arc rod section of the D-shaped bolt (4) is rotatably connected with the blade; the horizontal rod section of the D-shaped bolt (4) rotatably penetrates through the mounting seat (2) and then is connected with the nut (5), and the blade tripping position (2-2), the blade working position (2-3) and the welding position (2-1) are formed on the mounting seat (2); the welding position (2-1) is fixedly connected with the cutter shaft welding piece (1); when the horizontal rod section of the D-shaped bolt (4) is positioned at the blade release position (2-2), a gap I (6) which is enough for the blade to be separated from the D-shaped bolt (4) exists between the end surface of the arc rod section of the D-shaped bolt (4) and the outer surface of the blade release position (2-2) on the mounting seat (2); when the horizontal rod section of the D-shaped bolt (4) is located at the working position of the blade, a gap II (7) which is not enough for the blade to be separated from the D-shaped bolt (4) exists between the end surface of the arc rod section of the D-shaped bolt (4) and the outer surface of the mounting seat (2) at the working position of the blade.
4. The cutter shaft structure for the flail-knife type mower according to claim 3, wherein: the mounting end of the blade is provided with a mounting hole (8-1) used for being connected with the arc rod section of the D-shaped bolt (4), and a clamping inlet (8-2) communicated with the mounting hole (8-1) is formed in one side of the mounting hole on the mounting end of the blade; the diameter of the arc rod section of the D-shaped bolt (4) is larger than the width of the clamping inlet (8-2), and the end part of the arc rod section of the D-shaped bolt (4) is processed into a tripping section (4-1) which can pass through the clamping inlet (8-2); the sum of the length of the tripping section (4-1) and the distance of the gap I (6) is less than the thickness of the blade; the distance of the gap II (7) is smaller than the thickness of the blade, and the sum of the length of the tripping section (4-1) and the distance of the gap II (7) is larger than the thickness of the blade.
5. The cutter shaft structure for the flail-knife type mower according to claim 4, wherein: two inclined planes (4-2) arranged relative to the axis of the horizontal rod section are processed on the end part of the arc rod section of the D-shaped bolt (4) to form a tripping section (4-1), and the length of the tripping section (4-1) is the height of the inclined plane (4-2).
6. The cutter shaft structure for the flail-knife type mower according to claim 5, wherein: the mounting seat (2) is of a triangular structure formed by bending a steel plate, one side of the mounting seat (2) is a welding position (2-1) fixedly connected with the cutter shaft welding piece (1), the remaining two sides of the mounting seat (2) are blade tripping positions (2-2), a corner formed by the remaining two sides on the mounting seat (2) is a blade working position (2-3), and the inner radius of the corner is smaller than the radius of a horizontal rod section of the D-shaped bolt (4).
7. The cutter shaft structure for a flail mower according to any one of claims 1 to 6, wherein: the blade comprises a mowing blade.
8. The cutter shaft structure for a flail mower according to claim 7, wherein: the blades further comprise fan blades (9), a plurality of rows of fan blades (9) are distributed on the circumferential surface of the cutter shaft welding piece (1) along the circumferential direction of the cutter shaft welding piece, a plurality of rows of mowing blades are distributed on the circumferential surface of the cutter shaft welding piece (1) along the circumferential direction of the cutter shaft welding piece, and each row of the mowing blades and each row of the exhausting fan blades (9) are distributed at intervals along the circumferential direction.
9. The cutter shaft structure for a flail mower according to claim 8, wherein: the mowing blade consists of two blades which are oppositely arranged, and the mowing blade is divided into two types, namely a Y-shaped mowing blade (10) and a T-shaped mowing blade (11); the cutter shaft welding piece (1) is characterized in that a plurality of rows of Y-shaped mowing blades (10) are distributed on the circumferential surface of the cutter shaft welding piece (1) along the circumferential direction of the cutter shaft welding piece, a plurality of rows of T-shaped mowing blades (11) are distributed on the circumferential surface of the cutter shaft welding piece (1) along the circumferential direction of the cutter shaft welding piece, and each row of Y-shaped mowing blades (10) and each row of T-shaped mowing blades (11) are distributed at intervals along the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922120475.5U CN211353116U (en) | 2019-12-02 | 2019-12-02 | Cutter shaft structure for flail knife type mower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922120475.5U CN211353116U (en) | 2019-12-02 | 2019-12-02 | Cutter shaft structure for flail knife type mower |
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| CN211353116U true CN211353116U (en) | 2020-08-28 |
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| CN201922120475.5U Active CN211353116U (en) | 2019-12-02 | 2019-12-02 | Cutter shaft structure for flail knife type mower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115316053A (en) * | 2022-08-11 | 2022-11-11 | 金华市农业科学研究院(浙江省农业机械研究院) | Spiral zigzag cutter head suitable for cutting water bamboo pier |
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2019
- 2019-12-02 CN CN201922120475.5U patent/CN211353116U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115316053A (en) * | 2022-08-11 | 2022-11-11 | 金华市农业科学研究院(浙江省农业机械研究院) | Spiral zigzag cutter head suitable for cutting water bamboo pier |
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