Self-cooling high-temperature-resistant deep hole drilling tool structure

Abstract

The application relates to the technical field of drilling tools, and discloses a self-cooling high-temperature-resistant deep-hole drilling tool structure which comprises a drill rod and a drill handle, the end of the drill handle is provided with a mounting hole, further comprises a filter cylinder used for filtering cooling liquid, the diameter of the filter cylinder is smaller than the hole diameter of the mounting hole, the filter cylinder is mounted in the mounting hole, and the bottom of the filter cylinder is in a closed structure; a sealing ring is fixedly mounted at the cylinder opening of the filter cylinder and used for sealing the gap between the mounting hole and the cylinder opening of the filter cylinder; and a closing disc is movably mounted in the filter cylinder and used for plugging the cylinder opening of the filter cylinder when the drill rod is dismounted and not used. After the closing disc is reset, the closing disc is flush with the end of the drill handle and sealing ring, the mounting hole is plugged, dust and other impurities in the external environment are prevented from entering the cooling channel when the drill rod is dismounted and placed, and the cooling channel is prevented from being blocked.

Description

Technical Field

[0001] This invention relates to the field of drilling tool technology, and in particular to a self-cooling, high-temperature resistant deep hole drilling tool structure. Background Technology

[0002] Drill bits are used to drill holes in solid materials, and deep hole drills are among the most difficult to machine. Because their hole depth machining stability is somewhat lower, deep hole drills are generally designed with a double-edged blade for support and compression. Products machined with a double-edged blade have stable hole diameters and better hole wall finishes. However, existing deep hole drills have relatively difficult heat dissipation during use, which can easily affect the material when drilling holes in solid materials, and also reduce drilling efficiency.

[0003] An existing high-efficiency deep hole drilling tool (publication number: CN222448393U) has at least the following drawbacks: The aforementioned patent, through the cooperation between the set air intake component, air intake hole and heat dissipation pipe, can effectively dissipate heat from the drilling part during the drilling process; Existing deep hole drilling tools usually use a flow channel that runs through the drill rod to allow coolant to flow through for cooling. Since the holes in the flow channel are always open when the deep hole drilling tool is disassembled and placed, it is easy for external dust and other impurities to enter the flow channel and cause blockage. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a self-cooling, high-temperature resistant deep hole drilling tool structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A self-cooling, high-temperature resistant deep hole drilling tool structure includes a drill rod and a drill shank, wherein the end of the drill shank has a mounting hole, and further includes:

[0007] A filter cartridge is used to filter coolant. The diameter of the filter cartridge is smaller than the aperture of the mounting hole. The filter cartridge is installed inside the mounting hole, and the bottom of the filter cartridge is a closed structure.

[0008] A sealing ring is fixedly installed at the opening of the filter cylinder to seal the gap between the mounting hole and the opening of the filter cylinder.

[0009] The sealing disc is movably installed inside the filter cartridge and is used to seal the opening of the filter cartridge when the drill rod is removed and not in use.

[0010] As a further embodiment of the present invention, a support assembly is installed between the filter cylinder and the inner wall of the mounting hole. The support assembly includes a threaded tube sleeved on the outside of the filter cylinder. The top end of the threaded tube is fixedly installed to the lower surface of the sealing ring, and the threaded tube is threadedly connected to the inner wall of the mounting hole.

[0011] As a further embodiment of the present invention, multiple support ribs are fixedly installed at equal intervals in the circumferential direction between the inner wall of the threaded tube and the outer side of the filter cylinder.

[0012] As a further embodiment of the present invention, a limiting component is installed between the closed disc and the filter cylinder. The limiting component includes a limiting rod fixedly installed on the lower surface of the closed disc. The bottom end of the limiting rod passes through the bottom end of the filter cylinder, and a limiting post is fixedly installed at the bottom end of the limiting rod. A thrust component is installed on the outside of the limiting rod.

[0013] As a further embodiment of the present invention, the thrust assembly includes a compression spring sleeved on the outer surface of the limiting rod, the compression spring being disposed between the lower surface of the closed disc and the bottom wall of the filter cylinder.

[0014] As a further embodiment of the present invention, a stabilizing component is installed between the closed disc and the filter cylinder. The stabilizing component includes a plurality of sliders that are equidistantly fixed on the outer periphery of the closed disc in the circumferential direction. The filter cylinder has a plurality of grooves that are uniformly opened on its inner wall along its axial direction, corresponding to the sliders. The sliders are slidably installed on the inner wall of the grooves.

[0015] As a further embodiment of the present invention, a countersunk hole matching the sealing ring is provided at the edge of the mounting hole, and the sealing ring is embedded inside the countersunk hole.

[0016] As a further embodiment of the present invention, a cooling channel for coolant to circulate is provided through the center of the drill rod, and the cooling channel is connected to the interior of the mounting hole.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. When injecting coolant into the mounting hole, the pressure of the coolant will push the closed disc to move into the filter cylinder, allowing the coolant to enter the filter cylinder and then enter the cooling channel after being filtered by the filter cylinder. This avoids incomplete filtration of the coolant inside the drill press, which could lead to fine impurities entering the cooling channel, causing blockage and affecting the normal use of the drill rod.

[0019] 2. After the coolant injection is stopped, the sealing disc will move outward and reset under the elastic force of the compression spring, so that the sealing disc can push out the impurities filtered out inside the filter cartridge, thereby cleaning the filter cartridge so that it can be used for the next filtration.

[0020] 3. After the sealing disc is reset, it can be flush with the end of the sealing ring and the drill shank, thereby sealing the mounting hole and preventing external dust and other impurities from entering the cooling channel and causing blockage during the disassembly and placement of the drill rod. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a self-cooling, high-temperature resistant deep hole drilling tool proposed in this invention.

[0022] Figure 2 This is a schematic diagram of the drill shank end structure of a self-cooling, high-temperature resistant deep hole drilling tool structure proposed in this invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of a self-cooling, high-temperature resistant deep hole drilling tool structure proposed in this invention;

[0024] Figure 4 This is a schematic diagram of the bottom structure of a threaded pipe for a self-cooling, high-temperature resistant deep hole drilling tool structure proposed in this invention.

[0025] Figure 5 This is a cross-sectional view of a threaded pipe and filter cylinder, which are part of a self-cooling, high-temperature resistant deep hole drilling tool structure proposed in this invention.

[0026] Figure 6 This is a schematic diagram of the bottom structure of the closed disk of a self-cooling, high-temperature resistant deep hole drilling tool structure proposed in this invention;

[0027] Figure 7 This is a schematic diagram of the internal structure of a threaded tube and filter cylinder for a self-cooling, high-temperature resistant deep hole drilling tool structure proposed in this invention.

[0028] Figure 8 This is a cross-sectional view of the drill shank structure of a self-cooling, high-temperature resistant deep hole drilling tool structure proposed in this invention.

[0029] In the diagram: 1. Drill rod; 101. Drill shank; 102. Countersunk hole; 2. Mounting hole; 3. Cooling channel; 4. Threaded pipe; 5. Support rib; 6. Filter cylinder; 7. Sealing disc; 8. Limiting rod; 9. Limiting post; 10. Compression spring; 11. Sealing ring; 12. Slider; 13. Slide groove. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] See attached document Figure 1 - Appendix Figure 8 A self-cooling, high-temperature resistant deep hole drilling tool structure includes a drill rod 1 and a drill shank 101. The drill shank 101 has a mounting hole 2 at its end. The tool also includes:

[0033] The filter cartridge 6 is used to filter the coolant. The diameter of the filter cartridge 6 is smaller than the aperture of the mounting hole 2. The filter cartridge 6 is installed inside the mounting hole 2, and the bottom of the filter cartridge 6 is a closed structure.

[0034] The sealing ring 11 is fixedly installed at the opening of the filter cylinder 6 to seal the gap between the mounting hole 2 and the opening of the filter cylinder 6.

[0035] The sealing disc 7 is movably installed inside the filter cylinder 6 and is used to seal the opening of the filter cylinder 6 when the drill rod 1 is removed and not in use.

[0036] In this embodiment, a support assembly is installed between the filter cylinder 6 and the inner wall of the mounting hole 2. The support assembly includes a threaded tube 4 sleeved on the outside of the filter cylinder 6. The top end of the threaded tube 4 is fixedly installed to the lower surface of the sealing ring 11. The threaded tube 4 is threadedly connected to the inner wall of the mounting hole 2. A stabilizing assembly is installed between the sealing disk 7 and the filter cylinder 6. The stabilizing assembly includes multiple sliders 12 that are equidistantly fixedly installed on the outer periphery of the sealing disk 7 in the circumferential direction. Multiple grooves 13 corresponding to the sliders 12 are evenly opened on the inner wall of the filter cylinder 6 along its axial direction. The sliders 12 are slidably installed on the inner wall of the grooves 13.

[0037] When it is necessary to disassemble the filter cartridge 6, use a disassembly tool (wrench or screwdriver) to push the closed plate 7 to move, so that the disassembly tool is stuck in the slide groove 13, and then the threaded tube 4 can be rotated to carry out the disassembly operation.

[0038] In this embodiment, multiple support ribs 5 are fixedly installed at equal intervals in the circumferential direction between the inner wall of the threaded tube 4 and the outer side of the filter cylinder 6.

[0039] The multiple support ribs 5 can support the outer periphery of the filter cylinder 6, preventing the filter cylinder 6 from deforming under the pressure of high-pressure hydraulic oil.

[0040] In this embodiment, a limiting component is installed between the closed disk 7 and the filter cylinder 6. The limiting component includes a limiting rod 8 fixedly installed on the lower surface of the closed disk 7. The bottom end of the limiting rod 8 passes through the bottom end of the filter cylinder 6, and a limiting post 9 is fixedly installed at the bottom end of the limiting rod 8. A thrust component is installed on the outside of the limiting rod 8.

[0041] During use, the limiting rod 8 ensures that the closed disc 7 moves stably in a straight line and provides support and limit for the compression spring 10; the limiting post 9 limits the movement distance of the closed disc 7, so that the closed disc 7 can be flush with the end of the sealing ring 11 in the initial position.

[0042] In this embodiment, the thrust assembly includes a compression spring 10 sleeved on the outer surface of the limiting rod 8, and the compression spring 10 is disposed between the lower surface of the closed disk 7 and the bottom wall of the filter cylinder 6.

[0043] After the coolant injection is stopped, the sealing disc 7 will move outward and reset under the elastic force of the compression spring 10, so that the sealing disc 7 can push out the impurities filtered out inside the filter cartridge 6, thereby cleaning the filter cartridge 6 so that the filter cartridge 6 can be used for the next filtration.

[0044] In this embodiment, a countersunk hole 102 matching the sealing ring 11 is provided at the edge of the mounting hole 2. The sealing ring 11 is embedded in the countersunk hole 102 so that the sealing ring 11 can be flush with the end of the drill shank 102.

[0045] In this embodiment, a cooling channel 3 for coolant to flow is provided through the center of the drill rod 1, and the cooling channel 3 is connected to the interior of the mounting hole 2.

[0046] When in use, the drill shank 101 is installed in the hydraulic tool holder of the drilling machine; when drilling is performed using the drill rod 1, the coolant of the drilling machine is injected into the mounting hole 2 through the flow channel in the hydraulic tool holder, so that the coolant can be sprayed into the borehole through the cooling channel 3 opened inside the drill rod 1 to cool the drill rod 1 and lubricate the drilling operation of the drill rod 1.

[0047] As can be seen from the above description, the above embodiments of the present invention achieve the following technical effects: When in use, the drill shank 101 is installed in the hydraulic tool holder of the drill press; when drilling is performed using the drill rod 1, the coolant of the drill press is injected into the mounting hole 2 through the flow channel in the hydraulic tool holder, so that the coolant can be sprayed into the drilling hole through the cooling channel 3 opened inside the drill rod 1, thereby cooling the drill rod 1 and lubricating the drilling operation of the drill rod 1.

[0048] When coolant is injected into the mounting hole 2, the pressure of the coolant will push the closed disc 7 into the interior of the filter cylinder 6, so that the coolant can enter the filter cylinder 6 and enter the cooling channel 3 after being filtered by the filter cylinder 6. This avoids incomplete filtration of the coolant inside the drill press, which would cause fine impurities to enter the cooling channel 3, block the cooling channel 3, and affect the normal use of the drill rod 1.

[0049] After the coolant injection is stopped, the sealing disc 7 will move outward and reset under the elastic force of the compression spring 10, so that the sealing disc 7 can push out the impurities filtered out inside the filter cartridge 6, thereby cleaning the filter cartridge 6 so that the filter cartridge 6 can be used for the next filtration.

[0050] The filter cartridge 6 can effectively collect the filtered impurities, preventing them from accumulating and clogging all the filter holes in the filter cartridge 6, thus affecting the flow of coolant.

[0051] After the sealing plate 7 is reset, it can be flush with the end of the sealing ring 11 and the drill shank 101, thereby sealing the mounting hole 2 and preventing external dust and other impurities from entering the cooling channel 3 and causing blockage of the cooling channel 3 when the drill rod 1 is disassembled and placed.

[0052] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A self-cooling, high-temperature resistant deep hole drilling tool structure, comprising a drill rod (1) and a drill shank (101), characterized in that, The drill shank (101) has a mounting hole (2) at its end, and also includes: The filter cylinder (6) is used to filter the coolant. The diameter of the filter cylinder (6) is smaller than the aperture of the mounting hole (2). The filter cylinder (6) is installed inside the mounting hole (2), and the bottom of the filter cylinder (6) is a closed structure. A sealing ring (11) is fixedly installed at the opening of the filter cylinder (6) to seal the gap between the mounting hole (2) and the opening of the filter cylinder (6). The sealing disc (7) is movably installed inside the filter cylinder (6) and is used to seal the opening of the filter cylinder (6) when the drill rod (1) is removed and not in use.

2. The self-cooling, high-temperature resistant deep hole drilling tool structure according to claim 1, characterized in that, A support assembly is installed between the filter cylinder (6) and the inner wall of the mounting hole (2). The support assembly includes a threaded tube (4) sleeved on the outside of the filter cylinder (6). The top end of the threaded tube (4) is fixedly installed on the lower surface of the sealing ring (11). The threaded tube (4) is threadedly connected to the inner wall of the mounting hole (2).

3. The self-cooling, high-temperature resistant deep hole drilling tool structure according to claim 2, characterized in that, Multiple support ribs (5) are fixedly installed circumferentially between the inner wall of the threaded pipe (4) and the outer side of the filter cylinder (6).

4. The self-cooling, high-temperature resistant deep hole drilling tool structure according to claim 1, characterized in that, A limiting component is installed between the closed disc (7) and the filter cylinder (6). The limiting component includes a limiting rod (8) fixedly installed on the lower surface of the closed disc (7). The bottom end of the limiting rod (8) passes through the bottom end of the filter cylinder (6), and a limiting post (9) is fixedly installed at the bottom end of the limiting rod (8). A thrust component is installed on the outside of the limiting rod (8).

5. The self-cooling, high-temperature resistant deep hole drilling tool structure according to claim 4, characterized in that, The thrust assembly includes a compression spring (10) sleeved on the outer surface of the limiting rod (8), and the compression spring (10) is disposed between the lower surface of the closed disc (7) and the bottom wall of the filter cylinder (6).

6. The self-cooling, high-temperature resistant deep hole drilling tool structure according to claim 1, characterized in that, A stabilizing component is installed between the closed disk (7) and the filter cylinder (6). The stabilizing component includes multiple sliders (12) that are equidistantly fixed on the outer periphery of the closed disk (7) in the circumferential direction. The filter cylinder (6) has multiple grooves (13) that are uniformly opened on its inner wall along its axial direction, corresponding to the sliders (12). The sliders (12) are slidably installed on the inner wall of the grooves (13).

7. The self-cooling, high-temperature resistant deep hole drilling tool structure according to claim 1, characterized in that, The mounting hole (2) has a countersunk hole (102) at the edge of the hole that matches the sealing ring (11), and the sealing ring (11) is embedded inside the countersunk hole (102).

8. The self-cooling, high-temperature resistant deep hole drilling tool structure according to claim 1, characterized in that, The drill rod (1) has a cooling channel (3) through its center for coolant flow, and the cooling channel (3) is connected to the interior of the mounting hole (2).

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