Novel anti-falling casing milling tool

Abstract

The utility model discloses a novel anti-falling casing milling tool, and relates to the technical field of casing milling tools. According to the novel anti-falling casing milling tool, the bottom of a milling machine mounting plate is connected with a casing milling mounting plate, a fixing sleeve is mounted at the bottom of the casing milling mounting plate, a casing milling assembly is inserted into the fixing sleeve, a fixing assembly is inserted into the fixing sleeve, a limiting groove is formed in the fixing sleeve, and the limiting groove is internally provided with a milling assembly. The casing milling assembly can be installed through the fixing sleeve, the magnet makes contact with the casing milling assembly, attraction force is formed on the casing milling assembly, the fixing assembly is inserted into the fixing sleeve, when the casing milling assembly is installed, the casing milling assembly makes contact with the magnet along the limiting groove, at the moment, the casing milling assembly compresses the fixing assembly to move along the first clamping groove, and therefore the casing milling assembly is installed. And the situation that the milling machine mounting plate rotates at a high speed, the milling machine mounting plate is disengaged from the fixed sleeve, and potential safety hazards are caused to a user is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sleeve milling tools, in particular to a novel sleeve milling tool which is anti-falling off. Background Art

[0002] The milling tool is a special downhole operation tool, which is usually used to remove obstacles in the well, such as cement, scale, hard sediment, packer rubber or anchor teeth between the pipe string and the casing. During the use of the milling tool, it is often not installed tightly and is prone to loosening. Driven by the high-speed rotating milling tool mounting seat, the loosening of the milling tool may cause the milling tool to fall off, thereby posing a safety hazard to the user.

[0003] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: during the use of the sleeve milling tool, the sleeve milling tool is often not installed tightly, and the high-speed rotation of the sleeve milling tool causes the sleeve milling tool to fall off, thus posing a safety hazard to the user. Therefore, we propose a new type of anti-falling sleeve milling tool to solve the above-mentioned problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a novel anti-falling sleeve milling tool, which solves the problem that the sleeve milling tool is often not installed tightly during use, and the high-speed rotating sleeve milling tool causes the sleeve milling tool to fall off, thus posing a safety hazard to the user.

[0005] To achieve the above purpose, the utility model is implemented through the following technical scheme: a new type of anti-falling sleeve milling tool, including a sleeve milling mounting plate connected to the bottom of the milling machine mounting plate, and a fixed sleeve is installed at the bottom of the sleeve milling mounting plate, a sleeve milling component is inserted into the interior of the fixed sleeve, a fixed component is inserted into the interior of the fixed sleeve, a limiting groove is arranged inside the fixed sleeve, a magnet is fixedly installed at the bottom of the sleeve milling mounting plate, a first slot is opened inside the fixed sleeve, and the fixed sleeve is sleeved inside the first slot.

[0006] The sleeve milling assembly comprises a sleeve milling tool body, one end of which is inserted into the interior of the limiting groove, and one end of which is provided with a second clamping groove, and the second clamping groove is adapted to the limiting groove.

[0007] Preferably, one end of the sleeve milling tool body is made of stainless steel, and a groove is provided inside the sleeve milling tool body, and the fixing component is inserted into the inside of the groove.

[0008] Preferably, the fixing assembly includes a latch, the latch is slidably connected to the interior of the fixing sleeve, and the top of the latch is fixedly connected to a limiting block, and the limiting block is slidably connected to the interior of the first slot.

[0009] Preferably, a spring is fixedly connected to one side of the limiting block, and the other end of the spring is fixedly connected to one side of the first slot.

[0010] Preferably, the inner side of the latch is inserted into the inside of the second slot, and the second slot is equal to the height of the latch.

[0011] Preferably, the latch pin passes through the interior of the fixing sleeve, and the limiting block is slidably connected to the interior of the first slot.

[0012] Beneficial Effects

[0013] The utility model provides a novel sleeve milling tool that is anti-falling off. Compared with the prior art, it has the following beneficial effects:

[0014] The novel anti-falling sleeve milling tool can install the sleeve milling component through the fixed sleeve, and the magnet contacts the sleeve milling component to form an attraction for the sleeve milling component. Since the fixed component is inserted into the fixed sleeve, when the sleeve milling component is installed, the sleeve milling component contacts the magnet along the limit groove. At this time, the sleeve milling component compresses the fixed component and moves along the first slot, so that the sleeve milling component can be clamped, thereby preventing the milling machine mounting plate from rotating at a high speed and the milling machine mounting plate from falling off the fixed sleeve, which would cause a safety hazard to the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall appearance of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cooperation between the fixed sleeve and the sleeve milling assembly of the overall structure of the utility model;

[0017] Figure 3 It is a cross-sectional schematic diagram of the fixed sleeve of the overall structure of the utility model;

[0018] Figure 4 The overall structure of the utility model Figure 3 The enlarged schematic diagram at A in the middle;

[0019] Figure 5 It is a schematic diagram of the cooperation between the integral structure sleeve milling component and the fixing component of the utility model.

[0020] In the figure: 1, milling machine mounting plate; 2, sleeve milling mounting plate; 3, fixed sleeve; 4, sleeve milling assembly; 401, sleeve milling tool body; 402, second slot; 403, groove; 5, fixed assembly; 501, latch; 502, limit block; 503, spring; 6, magnet; 7, limit slot; 8, first slot. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5 The utility model provides a technical solution: a new type of anti-falling sleeve milling tool, including a milling machine mounting plate 1, a sleeve milling mounting plate 2 is connected to the bottom, and a fixed sleeve 3 is installed at the bottom of the sleeve milling mounting plate 2, a sleeve milling component 4 is inserted into the interior of the fixed sleeve 3, a fixed component 5 is inserted into the interior of the fixed sleeve 3, a limiting groove 7 is arranged inside the fixed sleeve 3, a magnet 6 is fixedly installed at the bottom of the sleeve milling mounting plate 2, a first slot 8 is opened inside the fixed sleeve 3, and the fixed sleeve 3 is sleeved inside the first slot 8.

[0023] The sleeve milling assembly 4 can be installed through the fixed sleeve 3, and the magnet 6 is in contact with the sleeve milling assembly 4, forming an attraction for the sleeve milling assembly 4. Since the fixed assembly 5 is inserted into the interior of the fixed sleeve 3, when the sleeve milling assembly 4 is installed, the sleeve milling assembly 4 is in contact with the magnet 6 along the limiting groove 7. At this time, the sleeve milling assembly 4 compresses the fixed assembly 5 and moves along the first slot 8, so that the sleeve milling assembly 4 can be clamped, thereby preventing the milling machine mounting plate 1 from rotating at a high speed and the milling machine mounting plate 1 from falling off the fixed sleeve 3, posing a safety hazard to the user.

[0024] See also Figure 4 , Figure 5 The milling assembly 4 includes a milling tool body 401, one end of which is inserted into the inside of the limiting groove 7, one end of which is provided with a second slot 402, and the second slot 402 is adapted to the limiting groove 7, one end of the milling tool body 401 is made of stainless steel, and a groove 403 is provided inside the milling tool body 401, and the fixing assembly 5 is inserted into the inside of the groove 403.

[0025] The milling tool body 401 in the milling assembly 4 can prevent the milling tool body 401 from being separated from the fixed sleeve 3 when working, and the milling tool body 401 can be installed inside the limiting groove 7 through the second clamping groove 402, and through the groove 403, when the milling tool body 401 is installed, the groove 403 compresses the fixing assembly 5 to move along the first clamping groove 8, so that the fixing assembly 5 enters the groove 403, and the milling tool body 401 can be fixed, so that the milling tool body 401 will not be separated from the limiting groove 7 when working.

[0026] See also Figure 4 , Figure 5 The fixing assembly 5 includes a latch 501, which is slidably connected to the inside of the fixing sleeve 3, and the top of the latch 501 is fixedly connected to a limiting block 502, which is slidably connected to the inside of the first slot 8, one side of the limiting block 502 is fixedly connected to a spring 503, and the other end of the spring 503 is fixedly connected to one side of the first slot 8, the inner side of the latch 501 is inserted into the inside of the second slot 402, and the height of the second slot 402 is equal to that of the latch 501, the latch 501 passes through the inside of the fixing sleeve 3, and the limiting block 502 is slidably connected to the inside of the first slot 8.

[0027] The latch 501 in the fixing assembly 5 can not only slide the limit block 502 into the first slot 8, but also connect the limit block 502 to the spring 503. When the sleeve milling tool body 401 is installed, the sleeve milling tool body 401 compresses the latch 501 and the limit block 502 to shrink along the first slot 8, and the limit block 502 compresses the spring 503. However, since the height of the second slot 402 is equal to that of the latch 501, after the sleeve milling tool body 401 is installed, the spring 503 can push the latch 501 and the limit block 502 to reset, so that one end of the latch 501 enters the second slot 402, thereby fixing the sleeve milling tool body 401 and preventing the sleeve milling tool body 401 from rotating out of the limit slot 7 at high speed.

[0028] During operation, the sleeve milling component 4 can be installed through the fixed sleeve 3, and the magnet 6 contacts the sleeve milling component 4, forming an attraction for the sleeve milling component 4. Since the fixed component 5 is inserted into the interior of the fixed sleeve 3, when the sleeve milling component 4 is installed, the sleeve milling component 4 contacts the magnet 6 along the limiting groove 7. At this time, the sleeve milling component 4 compresses the fixed component 5 and moves along the first slot 8, so that the sleeve milling component 4 can be clamped, thereby preventing the milling machine mounting plate 1 from rotating at a high speed and causing the milling machine mounting plate 1 to fall off the fixed sleeve 3, posing a safety hazard to the user.

[0029] The milling tool body 401 in the milling assembly 4 can prevent the milling tool body 401 from being separated from the fixed sleeve 3 when working, and the milling tool body 401 can be installed inside the limiting groove 7 through the second clamping groove 402, and through the groove 403, when the milling tool body 401 is installed, the groove 403 compresses the fixing assembly 5 to move along the first clamping groove 8, so that the fixing assembly 5 enters the groove 403, and the milling tool body 401 can be fixed, so that the milling tool body 401 will not be separated from the limiting groove 7 when working.

[0030] The latch 501 in the fixing assembly 5 can not only slide the limit block 502 into the first slot 8, but also connect the limit block 502 to the spring 503. When the sleeve milling tool body 401 is installed, the sleeve milling tool body 401 compresses the latch 501 and the limit block 502 to shrink along the first slot 8, and the limit block 502 compresses the spring 503. However, since the height of the second slot 402 is equal to that of the latch 501, after the sleeve milling tool body 401 is installed, the spring 503 can push the latch 501 and the limit block 502 to reset, so that one end of the latch 501 enters the second slot 402, thereby fixing the sleeve milling tool body 401 and preventing the sleeve milling tool body 401 from rotating out of the limit slot 7 at high speed.

[0031] In summary, when the milling assembly 4 of the device is installed, the milling assembly 4 contacts the magnet 6 along the limiting groove 7, and the milling assembly 4 compresses the fixing assembly 5, thereby clamping the milling assembly 4, thereby preventing the milling machine mounting plate 1 from falling off the fixing sleeve 3 when the milling machine mounting plate 1 rotates at high speed.

[0032] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A novel anti-falling sleeve milling tool, comprising a sleeve milling mounting plate (2) connected to the bottom of a milling machine mounting plate (1), and a fixed sleeve (3) installed at the bottom of the sleeve milling mounting plate (2), characterized in that: A sleeve milling assembly (4) is inserted into the interior of the fixed sleeve (3), a fixed assembly (5) is inserted into the interior of the fixed sleeve (3), a limiting groove (7) is provided inside the fixed sleeve (3), a magnet (6) is fixedly mounted on the bottom of the sleeve milling mounting plate (2), a first clamping groove (8) is provided inside the fixed sleeve (3), and the fixed sleeve (3) is sleeved inside the first clamping groove (8).

2. The novel anti-falling sleeve milling tool according to claim 1 is characterized in that: The sleeve milling assembly (4) comprises a sleeve milling tool body (401), one end of the sleeve milling tool body (401) is inserted into the interior of the limiting groove (7), one end of the sleeve milling tool body (401) is provided with a second clamping groove (402), and the second clamping groove (402) is adapted to the limiting groove (7).

3. A novel anti-falling sleeve milling tool according to claim 2, characterized in that: One end of the sleeve milling tool body (401) is made of stainless steel, and a groove (403) is provided inside the sleeve milling tool body (401), and the fixing component (5) is inserted into the inside of the groove (403).

4. The novel anti-falling sleeve milling tool according to claim 2 is characterized in that: The fixing assembly (5) comprises a latch (501) which is slidably connected to the interior of the fixing sleeve (3), and the top of the latch (501) is fixedly connected to a limit block (502), and the limit block (502) is slidably connected to the interior of the first slot (8).

5. The novel anti-falling sleeve milling tool according to claim 4 is characterized in that: A spring (503) is fixedly connected to one side of the limiting block (502), and the other end of the spring (503) is fixedly connected to one side of the first clamping slot (8).

6. The novel anti-falling sleeve milling tool according to claim 4 is characterized in that: The inner side of the latch pin (501) is inserted into the interior of the second card slot (402), and the second card slot (402) and the latch pin (501) are at the same height.

7. The novel anti-falling sleeve milling tool according to claim 4 is characterized in that: The latch pin (501) passes through the interior of the fixing sleeve (3), and the limiting block (502) is slidably connected to the interior of the first clamping slot (8).

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