An ice drill bit and ice drilling apparatus

Abstract

The utility model provides a kind of ice drill drill bit and ice drill equipment, the ice drill drill bit includes: drill rod, the drill rod has the through hole along the axial direction through;Buoyancy filler is filled in the through hole, and the buoyancy filler seals the first end and second end of the through hole;Spiral blade component is arranged in the outer periphery of the drill rod, and the spiral blade component is at least installed on part of the drill rod;Blade structure includes blade tip, blade and blade fixed seat, the blade tip and the blade fixed seat are connected with the second end of the drill rod, the blade is arranged in the end of the blade fixed seat away from the drill rod, the blade tip is located in the center of the blade fixed seat, the blade tip extends from the second end of the drill rod to the outside of the blade. The present application improves the efficiency of ice surface drilling.

Description

Technical Field

[0001] This utility model relates to the field of ice surface drilling technology, and in particular to an ice drill bit and ice drilling equipment. Background Technology

[0002] During the frigid season, people need to break ice for activities such as fishing, winter swimming, or measuring ice thickness. The traditional method is to use tools such as ice axes and ice saws to hammer and break the ice, which is time-consuming, laborious, and noisy. To improve this, professional ice drill tools have emerged. Ice drill tools consist of a handle, a drill rod, and a cutting tool. The drill rod is operated by the handle to drill holes in the ice surface.

[0003] Currently, there are many types of electric ice drills on the market. Although they can all drill through ice, during use, if the motor is not securely locked to the drill rod, or if the drill rod loosens after a period of use, it can cause the drill rod to detach. The detached drill rod will sink into the water due to its own weight, making it difficult to retrieve. This not only causes economic losses but also reduces the efficiency of ice drilling to some extent. Therefore, how to improve the efficiency of drilling holes in ice is an urgent problem to be solved. Utility Model Content

[0004] In view of this, the present invention provides an ice drill bit and ice drill equipment to eliminate or improve one or more defects existing in the prior art.

[0005] One aspect of this utility model provides an ice drill bit, the ice drill bit comprising: A drill rod having a through hole extending in the axial direction, the wall thickness of the drill rod being in the range of 1 mm to 2 mm; A buoyancy filler is provided, which fills the through hole and seals the first and second ends of the through hole. The buoyancy filler includes a first shaft segment filler and a second shaft segment filler, which respectively fill the first and second ends of the through hole, with a gap between them. The buoyancy filler is foam plastic, buoyancy cotton, or EPE pearl cotton. A helical blade assembly is disposed on the outer periphery of the drill pipe, and the helical blade assembly is at least mounted on a portion of the drill pipe; The blade structure includes a cutting tip, a blade, and a blade holder. The cutting tip and the blade holder are both connected to the second end of the drill rod. The blade is disposed at the end of the blade holder away from the drill rod. The cutting tip is located at the center of the blade holder and extends from the second end of the drill rod to the outside of the blade.

[0006] In some embodiments of this utility model, the ratio of the length of the first shaft segment filler to the length of the drill pipe ranges from 1:6 to 1:3, and the ratio of the length of the second shaft segment filler to the length of the drill pipe ranges from 1:6 to 1:3; and / or, The length of the drill rod is 30cm to 150cm.

[0007] In some embodiments of this invention, an adhesive layer is provided between the buoyancy filler and the inner wall of the drill rod.

[0008] In some embodiments of this utility model, the cross-sectional shape of both the drill rod and the through hole is a regular hexagon, and the wall thickness of the drill rod is 1.6 mm.

[0009] In some embodiments of this utility model, the distance between the blade holder and the bottom end of the helical blade assembly ranges from 0.5 mm to 2 mm.

[0010] In some embodiments of this utility model, the pitch of the helical blade assembly ranges from 180mm to 240mm, and the helix angle of the helical blade assembly ranges from 15° to 35°.

[0011] In some embodiments of this utility model, the end face of the blade for contacting the ice surface includes a first inclined portion and a second inclined portion. The first inclined portion is inclined outward and upward from the side of the blade near the tip, and the second inclined portion is inclined outward and upward from the side of the first inclined portion away from the tip.

[0012] In some embodiments of this invention, the angle between the second inclined portion and the ice surface is 23°.

[0013] In some embodiments of this utility model, the blade holder and the drill rod are connected by a first threaded fastener; and / or, The blade and the blade holder are connected by a second threaded fastener.

[0014] According to another aspect of the present invention, an ice drill device is also disclosed, the ice drill device comprising the ice drill bit as described in any of the above embodiments.

[0015] The ice drill bit of the above embodiment of this application has a through hole in the axial direction on the drill rod, and the through hole is filled with a buoyancy filler. The buoyancy filler seals the first end and the second end of the through hole. When the drill rod of this structure is detached from the power component at its top, it can float on the water surface and avoid sinking into the water, thereby reducing the difficulty of retrieval, saving costs, and improving the efficiency of ice drilling.

[0016] Furthermore, the drill rod wall thickness of this application is set to 1.6mm, which further improves the buoyancy of the ice drill bit while meeting strength requirements, thereby further improving ice drilling efficiency. In addition, this application sets the pitch of the helical blade assembly between 180mm and 240mm, the helix angle of the helical blade assembly between 15° and 35°, and the distance between the blade holder and the bottom end of the helical blade assembly between 0.5mm and 2mm. This effectively reduces the climbing resistance of ice chips during ice drilling, saves drilling costs, and improves drilling efficiency. Furthermore, the angle between the second inclined portion on the blade and the ice surface contact surface is set to 23°, allowing for better contact between the blade and the ice during cutting, thus enabling rapid cutting and further improving ice drilling efficiency.

[0017] Additional advantages, objects, and features of this invention will be set forth in part in the description which follows, and will in part become apparent to those skilled in the art upon review of the description, or may be learned by practice of the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures specifically pointed out in the description and drawings.

[0018] Those skilled in the art will understand that the objectives and advantages achievable with this invention are not limited to those specifically described above, and that the above and other objectives achievable with this invention will become clearer from the following detailed description. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, do not constitute a limitation thereof. The components in the drawings are not drawn to scale but are merely for illustrating the principles of the present invention. For ease of illustration and description of certain parts of the present invention, corresponding portions in the drawings may be enlarged, i.e., may appear larger relative to other components in an exemplary device actually manufactured according to the present invention. In the drawings: Figure 1 This is a schematic diagram of the structure of an ice drill bit according to an embodiment of the present invention.

[0020] Figure 2 This is a top view of an ice drill bit according to an embodiment of the present invention.

[0021] Figure 3 This is a side view of an ice drill bit according to an embodiment of the present invention.

[0022] Figure 4 for Figure 3 The BB cross-sectional view of the ice drill bit shown.

[0023] Figure 5This is a front view of a drill rod according to an embodiment of the present invention.

[0024] Figure 6 for Figure 5 The top view of the drill pipe shown.

[0025] Figure 7 This is a schematic diagram showing the angle between the second inclined portion and the ice surface in contact with an embodiment of the present invention.

[0026] Figure label: Drill rod 100, through hole 110, spiral blade assembly 200, cutting tip 310, cutting tool 320, cutting tool holder 330, first inclined part 321, second inclined part 322 Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. Here, the illustrative embodiments and descriptions of this utility model are used to explain the present utility model, but are not intended to limit the present utility model.

[0028] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0029] It should be emphasized that the term "including / comprises" as used herein refers to the presence of a feature, element, step, or component, but does not exclude the presence or addition of one or more other features, elements, steps, or components.

[0030] It should also be noted that the directional terms such as "left end" and "right end" used in this specification are relative to the positions shown in the attached drawings. Unless otherwise specified, the term "connection" in this document can refer not only to a direct connection but also to an indirect connection involving an intermediate component. A direct connection is a connection between two components without the aid of an intermediate component, while an indirect connection is a connection between two components using other components.

[0031] In the following description, embodiments of the present invention will be illustrated with reference to the accompanying drawings. In the drawings, the same reference numerals denote the same or similar parts.

[0032] Figure 1 This is a schematic diagram of the structure of an ice drill bit according to an embodiment of the present invention. Figure 2 This is a top view of an ice drill bit according to an embodiment of the present invention, as shown below. Figure 1 and Figure 2As shown, the ice drill bit includes at least a drill rod 100, a buoyancy filler, a helical blade assembly 200, and a cutting tool structure.

[0033] The drill rod 100 has a through hole 110 extending in the axial direction; a buoyancy filler is filled in the through hole 110, and the buoyancy filler seals the first and second ends of the through hole 110; a helical blade assembly 200 is disposed on the outer periphery of the drill rod 100, and the helical blade assembly is mounted on at least a portion of the drill rod; the blade structure includes a cutting tip 310, a blade 320, and a blade holder 330, both the cutting tip 310 and the blade holder 330 being connected to the second end of the drill rod 100, the blade 320 being disposed at the end of the blade holder 330 away from the drill rod 100, the cutting tip 310 being located at the center of the blade holder 330, and the cutting tip 310 extending from the second end of the drill rod 100 to the outside of the blade 320.

[0034] In this embodiment, the top end of the drill rod 100 of the ice drill bit can be used to connect to a power component (such as a motor). The drill rod 100 is provided with a through hole 110 extending along its axial direction, and the through hole 110 is filled with a buoyancy filler. The buoyancy filler seals the first and second ends of the through hole 110. The drill rod 100 with this structure allows it to float on the water surface after being detached from the power component, avoiding sinking into the water. The ice drill bit with this structure improves the overall buoyancy of the ice drill bit while ensuring effective ice drilling, thereby avoiding economic waste caused by the ice drill bit sinking to the bottom of the water, further reducing the difficulty of retrieval, and improving the efficiency of ice drilling.

[0035] In addition, to further improve the overall buoyancy of the ice drill bit, the spiral blade assembly 200 and the blade holder 330 can be made of PA66 engineering plastic. This material can meet the toughness and strength requirements of the spiral blade assembly 200 and the blade holder 330 in ice drilling scenarios, and the density of PA66 engineering plastic is 1.14 g / cm³. 3 Its density is close to that of water, thus increasing the buoyancy of the ice drill bit. Furthermore, the drill rod 100 can be made of T6 temper 6061 aluminum alloy, which is lightweight and high-strength, thus further improving its buoyancy while ensuring the strength of the ice drill bit. It is understood that the materials of the components listed in this embodiment are merely examples; in other embodiments, the aforementioned helical blade assembly 200, blade holder 330, and drill rod 100 may also be made of other materials.

[0036] In the above embodiments, the drill rod has a hollow structure, which significantly reduces weight compared to a solid drill rod, thus improving the buoyancy of the ice drilling equipment after it sinks in water. The large drainage volume when the drill rod and buoyancy filler are fully submerged provides sufficient buoyancy, preventing the ice drilling equipment from sinking. Since the buoyancy filler is located inside the drill rod, there is no need to reserve a buoyancy block mounting part on its outer wall. This allows for a sufficiently short drill rod length and eliminates the need for a bulky buoyancy block design, enabling it to float on the water surface and making the drill rod and ice drilling equipment easy to carry. The buoyancy filler's placement inside the drill rod does not negatively impact the operation of the ice drilling equipment; for example, the absence of a buoyancy block at the top of the drill rod does not affect the discharge of ice debris during operation. Compared to the technical solution of setting a buoyancy block at the top of the drill rod, the drill rod in this embodiment does not have external attachments, thus not altering its dynamic characteristics when in contact with air or water flow, not adding additional external resistance, and avoiding the risk of snagging or colliding with ice, transport devices, or other objects during drilling, carrying, or storage.

[0037] In some embodiments of this utility model, the wall thickness of the drill rod 100 ranges from 1mm to 2mm. This embodiment limits the wall thickness of the drill rod 100 to between 1mm and 2mm because research has shown that when the wall thickness of the drill rod 100 is less than 1mm, although its buoyancy is good, its strength is not ideal; while when the wall thickness of the drill rod 100 is greater than 2mm, its strength is good, but this leads to a significant decrease in the overall buoyancy of the ice drill bit, resulting in unsatisfactory performance. When the wall thickness of the drill rod 100 is between 1mm and 2mm, its performance in all aspects meets the operational requirements.

[0038] For example, such as Figure 5 and Figure 6As shown, the drill rod 100 can be a regular hexagonal drill rod, in which case its overall structure is a hexagonal prism, and the cross-sectional shape of the drill rod 100 can be a regular hexagon, specifically a plane perpendicular to the center line of the drill rod 100. Furthermore, the through hole 110 inside the drill rod 100 can also be a hexagonal through hole, in which case the cross-sectional shape of the hexagonal through hole is also a regular hexagon, meaning that both the drill rod 100 and the through hole 110 have regular hexagonal cross-sectional shapes. In addition, each face of the regular hexagonal drill rod and each face of the regular hexagonal through hole are parallel to each other, which can be considered as the corresponding sides of two regular hexagons being parallel. In this embodiment, the wall thickness of the drill rod 100 can be specifically set to 1.6 mm, that is, the distance between the two regular hexagons is 1.6 mm, and the distance between the two opposite planes of the drill rod 100 is 38 mm. This structure of the drill rod 100 ensures that the overall buoyancy of the ice drill bit is greater than its overall weight, thereby ensuring that the drill bit does not sink in water when it detaches from the power component. It can be understood that the distance between the two opposite planes of the drill rod 100 can also be understood as the distance between two opposite sides of the cross-section of the regular hexagon of the drill rod 100. It is understood that the shape and size of the drill rod 100 and the shape and size of the through hole 110 listed in this embodiment are just examples; in other embodiments, the drill hole and the through hole 110 can be set to other shapes.

[0039] from Figure 3 and Figure 4 As can be seen, the helical blade assembly 200 is mounted on a portion of the drill rod. The helical blade assembly 200 includes at least a helical blade and an outer sleeve. The helical blade is fixedly mounted on the outer sleeve or integrally formed with the outer sleeve, which is fitted onto the drill rod. The first end of the drill rod 100 is further provided with a connecting shaft, which is used to connect the drill rod 100 to a power component, such as a motor. Furthermore, the pitch of the helical blade assembly 200 ranges from 180mm to 240mm, and the helix angle ranges from 15° to 35°. This structure of the ice drill bit further improves the efficiency of ice chip accumulating, thereby improving ice drilling efficiency.

[0040] In some embodiments of this invention, the distance between the blade holder 330 and the bottom end of the helical blade assembly 200 is set between 0.5mm and 2mm. This structure results in a smaller distance between the blade holder 330 and the bottom end of the helical blade assembly 200. Therefore, when the drill rod 100 rotates, the gap between the blade holder 330 and the helical blade assembly 200 reduces the amount of ice chips squeezed out during the ice chip climbing process, allowing the ice chips to climb better along the helical blade assembly 200, thereby further improving the ice drilling efficiency of the ice drill bit. Optionally, the distance between the blade holder 330 and the bottom end of the helical blade assembly 200 can be set to less than 1mm. Experiments have shown that this distance allows ice chips to climb stably and efficiently along the helical blade assembly 200.

[0041] For example, the buoyancy filler includes a first shaft segment filler and a second shaft segment filler, which respectively fill the first end and the second end of the through hole 110, and there is a gap between the first shaft segment filler and the second shaft segment filler. In this embodiment, the buoyancy filler does not completely fill the through hole 110 of the drill pipe 100, that is, the sum of the total lengths of the first shaft segment filler and the second shaft segment filler is less than the axial length of the through hole 110.

[0042] Furthermore, the ratio of the length of the first shaft section filler to the length of the drill pipe 100 can range from 1:6 to 1:3, and the ratio of the length of the second shaft section filler to the length of the drill pipe 100 can also range from 1:6 to 1:3. For example, the overall length of the drill pipe 100 can be 90cm, while the length of the first shaft section filler can be between 15cm and 30cm, and the length of the second shaft section filler can also be between 15cm and 30cm. It is understood that in some other embodiments, the buoyancy filler can completely fill the through hole 110, i.e., the gap between the first and second shaft section fillers is 0mm. Optionally, the buoyancy filler can be foam plastic, buoyancy cotton, or EPE pearl cotton, etc.

[0043] In some embodiments, the length of the drill rod is 30cm to 150cm, specifically 30cm, 50cm, 90cm, 120cm, 150cm, etc. This size range can cover the thickness of general ice layers. If the length of the drill rod exceeds 150cm, it will be inconvenient to carry.

[0044] In some embodiments of this utility model, an adhesive layer is provided between the buoyancy filler and the inner wall of the drill rod. The adhesive layer can be formed by glue, which serves to connect the buoyancy filler and the inner wall of the drill rod, thereby enhancing the sealing performance and connection firmness.

[0045] In some embodiments of this invention, the end face of the blade 320 for contacting the ice surface includes a first inclined portion 321 and a second inclined portion 322. The first inclined portion 321 slopes outward and upward from the side of the blade 320 near the tip 310, and the second inclined portion 322 slopes outward and upward from the side of the first inclined portion 321 away from the tip 310. In this embodiment, the end face of the blade 320 for contacting the ice surface can be understood as... Figure 1 The bottom end face of the blade 320 shown, the side of the blade 320 near the tip 310 can be understood as the inner side of the blade 320.

[0046] Optionally, the angle between the second inclined portion 322 and the ice surface contact surface is 23°, as shown in the figure. Figure 7 As shown in the figure. In this embodiment, the angle between the second inclined part 322 and the contact surface of the ice surface is set to 23°, which allows for better contact with the ice surface during rapid cutting, thereby avoiding phenomena such as ice jamming and rotation obstruction during rapid cutting, and thus improving the efficiency of ice drilling.

[0047] Furthermore, the blade holder 330 is connected to the drill rod 100 via a first threaded fastener; and / or, the blade 320 is connected to the blade holder 330 via a second threaded fastener. In this embodiment, the blade holder 330 and the drill rod 100, and the blade 320 and the blade holder 330, can be connected via countersunk screws, which further reduces snow resistance and improves ice drilling efficiency during ice drilling; or the first threaded fastener connection and the second threaded fastener connection can be selected as hexagonal head bolts, which have stronger load-bearing capacity and are easier to assemble and maintain.

[0048] Accordingly, this application also provides an ice drill device, which includes an ice drill bit as described in any of the above embodiments.

[0049] As can be seen from the above embodiments, the drill rod of this application can float on the water surface when it detaches from the power component at its top, avoiding sinking and thus reducing the difficulty of retrieval, saving costs, and improving the efficiency of ice drilling. Furthermore, the wall thickness of the drill rod of this application is set to 1.6mm, which further improves the buoyancy of the ice drill bit while meeting strength requirements, thereby further improving the efficiency of ice drilling. In addition to the above, this application sets the pitch of the helical blade assembly between 180mm and 240mm, the helix angle of the helical blade assembly between 15° and 35°, and the distance between the blade holder and the bottom end of the helical blade assembly between 0.5mm and 2mm. This effectively reduces the climbing resistance of ice chips during ice drilling, saves ice drilling costs, and improves ice drilling efficiency. In addition, the angle between the second inclined portion on the blade and the contact surface with the ice surface is set to 23°, which allows the blade to better adhere to the ice during cutting, thereby achieving rapid cutting and further improving the efficiency of ice drilling.

[0050] In this invention, features described and / or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, and / or combined with or in place of features of other embodiments.

[0051] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. For those skilled in the art, various modifications and variations can be made to the embodiments of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An ice drill bit, characterized in that, The ice drill bit includes: A drill rod having a through hole extending in the axial direction, the wall thickness of the drill rod being in the range of 1 mm to 2 mm; A buoyancy filler is provided, which fills the through hole and seals the first and second ends of the through hole. The buoyancy filler includes a first shaft segment filler and a second shaft segment filler, which respectively fill the first and second ends of the through hole, with a gap between them. The buoyancy filler is foam plastic, buoyancy cotton, or EPE pearl cotton. A helical blade assembly is disposed on the outer periphery of the drill pipe, and the helical blade assembly is at least mounted on a portion of the drill pipe; The blade structure includes a cutting tip, a blade, and a blade holder. The cutting tip and the blade holder are both connected to the second end of the drill rod. The blade is disposed at the end of the blade holder away from the drill rod. The cutting tip is located at the center of the blade holder and extends from the second end of the drill rod to the outside of the blade.

2. The ice drill bit according to claim 1, characterized in that, The ratio of the length of the first shaft section filler to the length of the drill pipe ranges from 1:6 to 1:3, and the ratio of the length of the second shaft section filler to the length of the drill pipe ranges from 1:6 to 1:3; and / or, The length of the drill rod is 30cm to 150cm.

3. The ice drill bit according to claim 1, characterized in that, An adhesive layer exists between the buoyancy filler and the inner wall of the drill pipe.

4. The ice drill bit according to claim 1, characterized in that, Both the drill rod and the through hole have a regular hexagonal cross-sectional shape, and the drill rod has a wall thickness of 1.6 mm.

5. The ice drill bit according to claim 1, characterized in that, The distance between the blade holder and the bottom end of the helical blade assembly ranges from 0.5 mm to 2 mm.

6. The ice drill bit according to claim 1, characterized in that, The pitch of the helical blade assembly ranges from 180 mm to 240 mm, and the helix angle of the helical blade assembly ranges from 15° to 35°.

7. The ice drill bit according to claim 1, characterized in that, The end face of the blade for contacting the ice surface includes a first inclined portion and a second inclined portion. The first inclined portion is inclined outward and upward from the side of the blade near the tip, and the second inclined portion is inclined outward and upward from the side of the first inclined portion away from the tip.

8. The ice drill bit according to claim 7, characterized in that, The angle between the second inclined part and the contact surface of the ice is 23°.

9. The ice drill bit according to claim 1, characterized in that, The blade holder is connected to the drill rod via a first threaded fastener; and / or The blade and the blade holder are connected by a second threaded fastener.

10. An ice drilling device, characterized in that, The ice drill equipment includes an ice drill bit as described in any one of claims 1 to 9.

Images