A spiral ridger

Abstract

The utility model provides a kind of spiral ridger, belong to micro tiller accessory technical field.It solves the problem that the outer diameter of existing ridger cannot be adjusted and the whole needs to be replaced after wearing.It includes tool shaft, spiral blade on tool shaft in the length direction of tool shaft and spiral blade and spiral blade that spiral extends along the spiral direction of spiral blade, spiral blade is several and sequentially attached in the side of spiral blade along the spiral direction of spiral blade, each spiral blade is equipped with tool tooth, each spiral blade is equipped with first connecting hole, spiral blade is equipped with second connecting hole corresponding with first connecting hole, spiral blade is detachably connected on spiral blade by locking bolt that is arranged in first connecting hole and second connecting hole, it is convenient to disassemble and replace the spiral blade after wearing, compared with the whole replacement, effectively reduce cost;At the same time, the outer diameter size of ridger can be changed to meet different ridging needs.

Description

Technical Field

[0001] This utility model belongs to the technical field of micro-tiller accessories and relates to a spiral ridging device. Background Technology

[0002] A mini tiller is a small tillage machine. It is powered by a small diesel or gasoline engine and is characterized by its light weight, small size, and simple structure. A common mini tiller uses an engine to drive the ridge-forming blades fixed on the main shaft to rotate. During the rotation of the blades, the soil in the tilled land is turned up and spread to both sides to form ridges.

[0003] Chinese patent discloses a ridging blade for a micro-tiller [authorization announcement number CN221178339U], which includes a cutter shaft, a first blade that extends spirally along the length of the cutter shaft, a second blade that extends spirally along the outer edge of the first blade and is fixedly connected to the outer edge of the first blade, and a plurality of blade teeth that are equally spaced and spirally distributed along the outer edge of the second blade are provided on the second blade, and the wear resistance coefficient of the second blade is greater than that of the first blade.

[0004] The aforementioned ridging tool has a second blade with a higher wear resistance coefficient fixed on the first blade. Although this improves the service life, it cannot be replaced when the second blade wears or breaks, and the outer diameter of the tool cannot be flexibly adjusted, resulting in poor versatility. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a auger with replaceable auger blades.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A spiral ridging device includes a cutter shaft, spiral blades spirally disposed on the cutter shaft along its length, and spiral blades extending spirally along the spiral direction of the spiral blades. Several spiral blades are arranged sequentially on one side of the spiral blades along their spiral direction. Each spiral blade has teeth and a first connecting hole. The spiral blades have second connecting holes corresponding to the first connecting holes. The spiral blades are detachably connected to the spiral blades via locking bolts passing through the first and second connecting holes.

[0008] Several helical blades of equal size are located at the edge of the helical blades with their teeth extending outwards. Under the action of locking bolts, the helical blades are tightly fitted to the helical blades. Each helical blade is fixed to the helical blades by at least two locking bolts. When the helical blades are worn, they can be easily replaced, thereby reducing the cost of use.

[0009] In the above-mentioned spiral ridging device, the second connecting hole is elongated and its length extends along the spiral direction of the spiral blade. Each first connecting hole is provided with a corresponding third connecting hole. The third connecting hole is located on the side of the second connecting hole away from the cutter shaft, and the distances from the third connecting holes to the corresponding first connecting holes are all equal.

[0010] Each spiral blade has at least two first connecting holes. Several first connecting holes on the same spiral blade are arranged sequentially along the spiral direction of the spiral blade. Third connecting holes are arranged on the spiral blade and correspond one-to-one with the first connecting holes. Several third connecting holes on the same spiral blade are also arranged sequentially along the spiral direction of the spiral blade.

[0011] When the spiral blade moves radially outward, the locking bolt passes through the first and second connecting holes, increasing the outer diameter of the ridging device. When the spiral blade moves radially inward, the locking bolt passes through the third and second connecting holes, decreasing the outer diameter of the ridging device. The circumferential position of the locking bolt in the first connecting hole differs from that in the third connecting hole; therefore, a long, narrow second connecting hole is needed to accommodate the locking bolt and satisfy its circumferential position.

[0012] It also facilitates the adjustment of the circumferential position of the single spiral blade.

[0013] In the above-mentioned spiral ridging device, the first connecting hole is elongated and its length extends along the spiral direction of the spiral blade. Each second connecting hole is provided with a corresponding fourth connecting hole. The fourth connecting hole is located on the side of the second connecting hole away from the blade shaft, and the distances from the fourth connecting holes to their corresponding second connecting holes are all equal.

[0014] Each spiral blade has at least two first connecting holes. Several first connecting holes located on the same spiral blade are arranged sequentially along the spiral direction of the spiral blade. Several second connecting holes are arranged sequentially along the spiral direction of the spiral blade. Fourth connecting holes are arranged on the spiral blade and correspond one-to-one with the second connecting holes. Several fourth connecting holes are also arranged sequentially along the spiral direction of the spiral blade.

[0015] When the spiral blade moves radially outward, the locking bolt passes through the first and fourth connecting holes, at which point the outer diameter of the ridging device increases. When the spiral blade moves radially inward, the locking bolt passes through the first and second connecting holes, at which point the outer diameter of the ridging device decreases. The circumferential position of the locking bolt located in the second connecting hole differs from that of the locking bolt located in the fourth connecting hole. Therefore, an elongated first connecting hole is required to accommodate the locking bolt and satisfy its circumferential position.

[0016] It also facilitates the adjustment of the circumferential position of the single spiral blade.

[0017] In the above-mentioned spiral ridging device, one end of the cutter shaft is a first connecting sleeve, and the other end of the cutter shaft is a second connecting sleeve. The inner hole size of the first connecting sleeve is equal to or different from the inner hole size of the second connecting sleeve.

[0018] Microcomputers of different sizes have different thicknesses of gearbox output shafts. By setting the inner diameter of the first connecting sleeve and the inner diameter of the second connecting sleeve to be different, the first connecting sleeve and the second connecting sleeve can be adapted to different microcomputers, thus achieving strong versatility.

[0019] In the above-mentioned spiral ridging device, a secondary shaft coaxially arranged with the cutter shaft is detachably connected to the cutter shaft. The secondary shaft is provided with spiral secondary blades extending along the spiral direction of the spiral blades. When the secondary shaft is connected to the cutter shaft, the end of the spiral secondary blades abuts against the end of the spiral blades. Adjustable spiral secondary blades are attached to the spiral secondary blades. The spiral secondary blades extend spirally along the spiral direction of the spiral blades, and each spiral secondary blade is also provided with cutting teeth.

[0020] The helical secondary blade is adjustable and detachable from the helical secondary blade. Its connection method is the same as that of the helical blade and the helical blade. When the outer diameter of the ridging device needs to be changed, both the helical secondary blade and the helical blade need to be adjusted. After adjustment, they are locked by locking bolts. Each locking bolt is threaded with a locking nut.

[0021] Adding or removing a secondary shaft adjusts the tillage width of the ridging device, thereby improving its versatility.

[0022] In the above-mentioned spiral ridging device, the secondary shaft has a connecting shaft that mates with the inner hole of the cutter shaft. The connecting shaft has a fifth connecting hole, and the cutter shaft has a sixth connecting hole. The fifth connecting hole and the sixth connecting hole are provided with pins for easy connection.

[0023] In the aforementioned spiral ridging device, the spiral blades are made of manganese steel.

[0024] In the aforementioned spiral ridging device, the spiral secondary blade is made of manganese steel.

[0025] Compared with existing technologies, this spiral ridging device has the following advantages:

[0026] The spiral blades are detachably connected to the spiral vanes via locking bolts, facilitating easy disassembly and replacement of worn spiral blades. This simple and convenient operation significantly reduces user costs compared to replacing the entire blade assembly. The outer diameter of the ridging device can be changed by adjusting the position of the spiral blades or by replacing them with different widths, meeting various ridging needs. The device is compatible with different ridging devices thanks to the inclusion of first and second connecting sleeves of varying sizes. A secondary shaft allows for adjustment of the ridging device's length and tillage width as needed. The spiral vanes and spiral blades are tightly fitted together, providing surface contact and mutual reinforcement, resulting in high structural strength. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the spiral ridging device provided in Embodiment 2.

[0028] Figure 2 This is an assembly diagram of the spiral ridging device provided in Embodiment 2.

[0029] Figure 3 This is a schematic diagram of the spiral ridging device provided in Embodiment 3.

[0030] Figure 4 This is a schematic diagram of the spiral ridging device provided in Embodiment 4.

[0031] Figure 5 This is an assembly diagram of the spiral ridging device provided in Embodiment 4.

[0032] Figure 6 This is an assembly diagram of the spiral ridging device provided in Example 5.

[0033] Figure 7 This is a schematic diagram of the spiral ridging device provided in Example 6.

[0034] Figure 8 This is an assembly diagram of the spiral ridging device provided in Example 6.

[0035] In the diagram, 1 is the cutter shaft; 2 is the helical blade; 3 is the helical blade; 5 is the cutter tooth; 6 is the first connecting hole; 7 is the second connecting hole; 8 is the locking bolt; 9 is the third connecting hole; 10 is the fourth connecting hole; 11 is the first connecting sleeve; 12 is the secondary shaft; 13 is the secondary helical blade; 14 is the secondary helical blade; 15 is the connecting shaft; 16 is the fifth connecting hole; and 17 is the sixth connecting hole. Detailed Implementation

[0036] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0037] Example 1

[0038] This spiral ridging device is used for ridging tobacco, strawberries, vegetables, etc. It includes a hexagonal prism tube cutter shaft 1, spiral blades 2 spirally arranged on the cutter shaft 1 along its length, and spiral blades 3 spirally extending along the spiral direction of the spiral blades 2. There are 4-6 spiral blades 3, which are sequentially attached to one side of the spiral blades 2 along the spiral direction of the spiral blades 2. The ends of two adjacent spiral blades 3 abut against each other to improve structural strength. The outer edge of the spiral blades 3 extends beyond the outer edge of the spiral blades 2. Each spiral blade 3 has several teeth 5 evenly arranged along its spiral direction on its outer edge.

[0039] To facilitate the replacement of the spiral blade 3, each spiral blade 3 is provided with a first connecting hole 6, and the spiral blade 2 is provided with a second connecting hole 7 corresponding to the first connecting hole 6. The spiral blade 3 is detachably connected to the spiral blade 2 by a locking bolt 8 passing through the first connecting hole 6 and the second connecting hole 7. A locking nut is threaded onto the locking bolt 8.

[0040] Several spiral blades 3 are of equal size. Under the action of locking bolts 8, the spiral blades 3 and spiral blades 2 are tightly fitted together. Each spiral blade 3 is fixed to the spiral blade 2 by at least two locking bolts 8. When the spiral blades 3 are worn, they can be easily replaced, thereby reducing the cost of use.

[0041] The spiral blade 3 is made of manganese steel and is about 6 times stronger than the spiral blade 2.

[0042] In this embodiment, the end of the spiral blade 3 at the head end is aligned with the end of the spiral blade 2, and the end of the spiral blade 3 at the tail end is aligned with the tail of the spiral blade 2.

[0043] Example 2

[0044] The structural principle of this embodiment is basically the same as that of Embodiment 1, except that, as Figure 1 and Figure 2 As shown, the second connecting hole 7 is elongated and its length extends along the spiral direction of the spiral blade 2. Each first connecting hole 6 is provided with a corresponding third connecting hole 9. The third connecting hole 9 is located on the side of the second connecting hole 7 away from the cutter shaft 1, and the distances from several third connecting holes 9 to their corresponding first connecting holes 6 are all equal.

[0045] like Figure 1 and Figure 2As shown, each spiral blade 3 is provided with three first connecting holes 6. The three first connecting holes 6 located on the same spiral blade 3 are arranged sequentially along the spiral direction of the spiral blade 3. The third connecting holes 9 are arranged on the spiral blade 3 and correspond one-to-one with the first connecting holes 6. The three third connecting holes 9 located on the same spiral blade 3 are also arranged sequentially along the spiral direction of the spiral blade 3.

[0046] When the spiral blade 3 moves radially outward, the locking bolt 8 passes through the first connecting hole 6 and the second connecting hole 7, at which time the outer diameter of the ridging device increases; when the spiral blade 3 moves radially inward, the locking bolt 8 passes through the third connecting hole 9 and the second connecting hole 7, at which time the outer diameter of the ridging device decreases.

[0047] The circumferential position of the locking bolt 8 located in the first connecting hole 6 is different from that of the locking bolt 8 located in the third connecting hole 9. Therefore, a long strip-shaped second connecting hole 7 is required to accommodate the locking bolt 8, satisfy the circumferential position of the locking bolt 8, and facilitate the adjustment of the circumferential position of the single spiral blade 3.

[0048] Example 3

[0049] The structural principle of this embodiment is basically the same as that of embodiment two, except that, as Figure 3 As shown, the upper end of the cutter shaft 1 is a first connecting sleeve 11 in the shape of a hexagonal prism tube, and the other lower end of the cutter shaft 1 is a second connecting sleeve in the shape of a hexagonal prism tube (that is, the lower end of the cutter shaft 1). The inner diameter of the first connecting sleeve 11 is smaller than the inner diameter of the second connecting sleeve.

[0050] Different sizes of micro-tillers have different thicknesses of gearbox output shafts. By setting the inner diameter of the first connecting sleeve 11 to be smaller than that of the second connecting sleeve, the first connecting sleeve 11 and the second connecting sleeve can be adapted to different micro-tillers, resulting in strong versatility. For example, when connecting to a large micro-tiller, the second connecting sleeves of the two ridging devices on the same micro-tiller are connected to the output shaft of the micro-tiller. When connecting to a small micro-tiller, the ridging device located on the left is moved to the right, and the ridging device located on the right is moved to the left, so that the first connecting sleeve 11 of the ridging device is connected to the output shaft of the micro-tiller.

[0051] Example 4

[0052] The structural principle of this embodiment is basically the same as that of embodiment two, except that, as Figure 4 and Figure 5As shown, a secondary shaft 12 coaxially arranged with the cutter shaft 1 is detachably connected to the cutter shaft 1. The secondary shaft 12 is a regular hexagonal prism cylinder. The secondary shaft 12 is provided with a helical secondary blade 13 extending along the helical direction of the helical blade 2. When the secondary shaft 12 is connected to the cutter shaft 1, the end of the helical secondary blade 13 abuts against the end of the helical blade 2. A helical secondary blade 14 (two blades in this embodiment) that can be adjusted radially outward is attached to the helical secondary blade 13. The helical secondary blade 14 extends helically along the helical direction of the helical blade 3. Each helical secondary blade 14 is also provided with a cutting tooth 5.

[0053] In this embodiment, the helical secondary blade 14 is made of manganese steel.

[0054] The helical secondary blade 14 is adjustable and detachably connected to the helical secondary blade 13. The connection method is the same as that of the helical blade 3 and the helical blade 2 in Embodiment 3. When the outer diameter of the ridging device needs to be changed, both the helical secondary blade 14 and the helical blade 2 need to be adjusted. After adjustment, they are locked by locking bolts 8. Each locking bolt 8 is threaded with a locking nut.

[0055] Adding or removing the secondary shaft 12 adjusts the tillage width of the ridging device, thereby improving its versatility.

[0056] For easy connection, such as Figure 5 As shown, the secondary shaft 12 has a connecting shaft 15 that mates with the inner hole of the cutter shaft 1. The connecting shaft 15 has a fifth connecting hole 16, and the cutter shaft 1 has a sixth connecting hole 17. The fifth connecting hole 16 and the sixth connecting hole 17 are provided with pins for easy connection.

[0057] Example 5

[0058] The structural principle of this embodiment is basically the same as that of Embodiment 1, except that, as Figure 6 As shown, the first connecting hole 6 is elongated and its length extends along the spiral direction of the spiral blade 3. Each second connecting hole 7 is provided with a corresponding fourth connecting hole 10. The fourth connecting hole 10 is located on the side of the second connecting hole 7 away from the cutter shaft 1, and the distances from the fourth connecting hole 10 to the corresponding second connecting hole 7 are all equal.

[0059] Each spiral blade 3 is provided with three first connecting holes 6. The three first connecting holes 6 located on the same spiral blade 3 are arranged sequentially along the spiral direction of the spiral blade 3. The second connecting holes 7 are arranged sequentially along the spiral direction of the spiral blade 2. The fourth connecting holes 10 are arranged on the spiral blade 2 and correspond one-to-one with the second connecting holes 7. Several fourth connecting holes 10 are also arranged sequentially along the spiral direction of the spiral blade 2.

[0060] When the spiral blade 3 moves radially outward, the locking bolt 8 passes through the first connecting hole 6 and the fourth connecting hole 10, at which time the outer diameter of the ridging device increases; when the spiral blade 3 moves radially inward, the locking bolt 8 passes through the first connecting hole 6 and the second connecting hole 7, at which time the outer diameter of the ridging device decreases.

[0061] The circumferential position of the locking bolt 8 located in the second connecting hole 7 is different from that of the locking bolt 8 located in the fourth connecting hole 10. Therefore, a long strip-shaped first connecting hole 6 is required to accommodate the locking bolt 8 and satisfy the circumferential position of the locking bolt 8, while also facilitating the adjustment of the circumferential position of the single spiral blade 3.

[0062] Example 6

[0063] The structural principle of this embodiment is basically the same as that of embodiment five, except that, as Figure 7 and Figure 8 As shown, a secondary shaft 12 coaxially arranged with the cutter shaft 1 is detachably connected to the cutter shaft 1. The secondary shaft 12 is a regular hexagonal prism cylinder. The secondary shaft 12 is provided with a helical secondary blade 13 extending along the helical direction of the helical blade 2. When the secondary shaft 12 is connected to the cutter shaft 1, the end of the helical secondary blade 13 abuts against the end of the helical blade 2. A helical secondary blade 14 (two blades in this embodiment) that can be adjusted radially outward is attached to the helical secondary blade 13. The helical secondary blade 14 extends helically along the helical direction of the helical blade 3. Each helical secondary blade 14 is also provided with a cutting tooth 5.

[0064] The helical secondary blade 14 is adjustable and detachably connected to the helical secondary blade 13. The connection method is the same as that of the helical blade 3 and the helical blade 2 in Embodiment 5. When the outer diameter of the ridging device needs to be changed, both the helical secondary blade 14 and the helical blade 2 need to be adjusted. After adjustment, they are locked by locking bolts 8. Each locking bolt 8 is threaded with a locking nut.

[0065] Adding or removing the secondary shaft 12 adjusts the tillage width of the ridging device, thereby improving its versatility.

[0066] For easy connection, such as Figure 8 As shown, the secondary shaft 12 has a connecting shaft 15 that mates with the inner hole of the cutter shaft 1. The connecting shaft 15 has a fifth connecting hole 16, and the cutter shaft 1 has a sixth connecting hole 17. The fifth connecting hole 16 and the sixth connecting hole 17 are provided with pins for easy connection.

[0067] Example 7

[0068] This spiral ridging device is used for ridging tobacco, strawberries, vegetables, etc. It includes a hexagonal prism tube cutter shaft 1, spiral blades 2 spirally arranged on the cutter shaft 1 along its length, and spiral blades 3 spirally extending along the spiral direction of the spiral blades 2. There are 6 spiral blades 3, which are sequentially attached to one side of the spiral blades 2 along the spiral direction of the spiral blades 2. The ends of two adjacent spiral blades 3 abut against each other to improve structural strength. The outer edge of the spiral blades 3 extends beyond the outer edge of the spiral blades 2. Each spiral blade 3 has several teeth 5 evenly arranged along its spiral direction on its outer edge.

[0069] To facilitate the replacement of the spiral blade 3, each spiral blade 3 is provided with a first connecting hole 6, and the spiral blade 2 is provided with a second connecting hole 7 corresponding to the first connecting hole 6. The spiral blade 3 is detachably connected to the spiral blade 2 by a locking bolt 8 passing through the first connecting hole 6 and the second connecting hole 7. A locking nut is threaded onto the locking bolt 8.

[0070] Several spiral blades 3 are of equal size. Under the action of locking bolts 8, the spiral blades 3 and spiral blades 2 are tightly fitted together. Each spiral blade 3 is fixed to the spiral blade 2 by at least two locking bolts 8. When the spiral blades 3 are worn, they can be easily replaced, thereby reducing the cost of use.

[0071] The spiral blade 3 is made of manganese steel and is about 6 times stronger than the spiral blade 2.

[0072] In this embodiment, the end of the spiral blade 3 at the head end is aligned with the end of the spiral blade 2, and the end of the spiral blade 3 at the tail end is aligned with the tail of the spiral blade 2.

[0073] In this embodiment, in order to meet different ridging requirements, the spiral blade 3 has two models: a first spiral blade and a second spiral blade. The first spiral blade and the second spiral blade have the same length, curvature and thickness. The first connecting hole 6 on the first spiral blade and the second spiral blade are in the same position, but the width of the first spiral blade and the second spiral blade are different.

[0074] Specifically, the width of the first spiral blade is smaller than the width of the second spiral blade, and the outer diameter of the spiral ridger equipped with the first spiral blade is smaller than the outer diameter of the spiral ridger equipped with the second spiral blade.

[0075] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A spiral ridging device, characterized in that, The device includes a cutter shaft (1), a spiral blade (2) spirally disposed on the cutter shaft (1) along the length direction of the cutter shaft (1), and a spiral blade (3) spirally extending along the spiral direction of the spiral blade (2). The spiral blade (3) consists of several blades and is sequentially attached to one side of the spiral blade (2) along the spiral direction of the spiral blade (2). Each spiral blade (3) is provided with a cutting tooth (5) and a first connecting hole (6). The spiral blade (2) is provided with a second connecting hole (7) corresponding to the first connecting hole (6). The spiral blade (3) is detachably connected to the spiral blade (2) by a locking bolt (8) passing through the first connecting hole (6) and the second connecting hole (7).

2. The spiral ridging device according to claim 1, characterized in that, The second connecting hole (7) is elongated and its length extends along the spiral direction of the spiral blade (2). Each of the first connecting holes (6) is provided with a corresponding third connecting hole (9). The third connecting hole (9) is located on the side of the second connecting hole (7) away from the cutter shaft (1). The distances from several third connecting holes (9) to their corresponding first connecting holes (6) are all equal.

3. The spiral ridging device according to claim 1, characterized in that, The first connecting hole (6) is elongated and its length extends along the spiral direction of the spiral blade (3). Each second connecting hole (7) is provided with a corresponding fourth connecting hole (10). The fourth connecting hole (10) is located on the side of the second connecting hole (7) away from the cutter shaft (1). The distances from several fourth connecting holes (10) to their corresponding second connecting holes (7) are all equal.

4. The spiral ridging device according to claim 1, 2, or 3, characterized in that, One end of the cutter shaft (1) is a first connecting sleeve (11), and the other end of the cutter shaft (1) is a second connecting sleeve. The inner hole size of the first connecting sleeve (11) is equal to or different from the inner hole size of the second connecting sleeve.

5. The spiral ridging device according to claim 1, 2, or 3, characterized in that, The cutter shaft (1) is detachably connected to a secondary shaft (12) coaxially arranged with the cutter shaft (1). The secondary shaft (12) is provided with a helical secondary blade (13) extending along the helical direction of the helical blade (2). When the secondary shaft (12) is connected to the cutter shaft (1), the end of the helical secondary blade (13) abuts against the end of the helical blade (2). An adjustable helical secondary blade (14) is attached to the helical secondary blade (13). The helical secondary blade (14) extends helically along the helical direction of the helical blade (3). Each helical secondary blade (14) is also provided with a cutting tooth (5).

6. The spiral ridging device according to claim 5, characterized in that, The secondary shaft (12) has a connecting shaft (15) that is fitted with the inner hole of the cutter shaft (1). The connecting shaft (15) has a fifth connecting hole (16), and the cutter shaft (1) has a sixth connecting hole (17). The fifth connecting hole (16) and the sixth connecting hole (17) are provided with pins.

7. The spiral ridging device according to claim 1, characterized in that, The spiral blade (3) is made of manganese steel.

8. The spiral ridging device according to claim 5, characterized in that, The spiral secondary blade (14) is made of manganese steel.

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