Sleeve pulling-out tool for tubular unit

Abstract

The utility model discloses a sleeve pulling-out tool for a tubular unit, which belongs to the technical field of tubular unit tooling, and comprises a main plate, the main plate is provided with a via hole suitable for accommodating a connecting column, the main plate is provided with a first sliding part, and the main plate is suitable for being matched with a jacking tool; a second sliding part is arranged on the vertical plate, the first sliding part is in sliding fit with the second sliding part, and the vertical plate can selectively move towards or away from the via hole; the inserting plate is arranged at the end, away from the main plate, of the vertical plate, and the free end of the inserting plate extends towards the via hole in the horizontal direction. According to the pull-out tool designed by the utility model, through the matching of the main plate, the vertical plate and the insertion plate, the jack acts on the main plate to apply a force to the sleeve, so that the sleeve is pulled out, and the gap between the main machine and the sleeve is far smaller than the gap between the main plate and the main machine or other stress points, so that the jack is more convenient to use, and the working efficiency is improved. Therefore, the sleeve can be pulled out more conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of tubular unit tooling, and particularly relates to a sleeve extraction tool for a tubular unit. Background Art

[0002] In the related art, tubular units are widely used in various industrial fields, such as hydropower generation and cooling systems. These units typically include a main unit with a connecting column on which a sleeve is mounted. A certain gap exists between the sleeve and the main unit to accommodate dimensional changes due to assembly and thermal expansion and contraction. When the sleeve needs to be maintained or replaced, it needs to be pulled out of the connecting column. However, due to the small gap between the sleeve and the main unit, traditional extraction methods are difficult to implement (a 100-ton jack is required to extract the sleeve, but the output end of the 100-ton jack cannot be inserted into the gap between the sleeve and the main unit, making it difficult to extract the sleeve). Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the prior art. To this end, one purpose of the present invention is to provide a sleeve extraction tool for a tubular unit.

[0004] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions:

[0005] The utility model provides a sleeve extraction tool for a cross-flow unit, comprising: a main board, the main board being provided with a through hole suitable for accommodating the connecting column, the main board being provided with a first sliding portion, the main board being suitable for cooperating with a pressing tool; a vertical plate, the vertical plate being provided with a second sliding portion, the first sliding portion and the second sliding portion being slidably cooperating, the vertical plate being selectively movable toward or away from the through hole; and an inserting plate, the inserting plate being arranged at one end of the vertical plate away from the main board, and the free end of the inserting plate extending horizontally toward the through hole.

[0006] According to the sleeve extraction tool for a cross-flow unit of the utility model, the basic principle of the present application is that through the cooperation of the main board, the vertical plate and the plug plate, the jack acts on the main board to apply force to the sleeve, thereby achieving the extraction of the sleeve. Moreover, the gap between the main unit and the sleeve is much smaller than the gap between the main board and the main unit or other force points, making the use of the jack more convenient, so that the sleeve can be extracted more conveniently. At the same time, the extraction tool of the present application has a simple principle and is easy to manufacture, so that the production cost of the extraction tool is low.

[0007] Furthermore, the gap between the sleeve and the main unit is L1, and the thickness of the inserting plate is L2, satisfying L2<L1.

[0008] Furthermore, the thickness of the insert plate is L2, which satisfies: 25 mm ≤ L2 ≤ 35 mm.

[0009] Furthermore, the main board is provided with a plurality of first sliding parts, the plurality of first sliding parts are arranged at intervals in the circumferential direction, and the vertical plates and the inserting plates are constructed to correspond one to one to a plurality of the first sliding parts.

[0010] Furthermore, the first sliding parts are configured in two portions, and the two first sliding parts are respectively located on both sides of the through hole in the radial direction.

[0011] Furthermore, the main board includes: a plate body, the plate body is provided with the through hole penetrating in the thickness direction; two connecting plates, the two connecting plates are respectively connected to the outer peripheral wall of the plate body, and the geometric center of the through hole is located on the connecting line of the two connecting plates; wherein the connecting plate is constructed as the first sliding part, the vertical plate is provided with a sliding hole, the sliding hole is constructed as the second sliding part, and the sliding hole is movably mounted on the connecting plate.

[0012] Furthermore, a handle is provided on a side of the main board facing away from the plugboard.

[0013] Furthermore, the thickness of the vertical plate is L3, which satisfies: 45mm≤L3≤55mm; the thickness of the main plate is L4, which satisfies: 45mm≤L4≤55mm.

[0014] Furthermore, the diameter of the connecting column is d1, and the inner diameter of the via hole is d2, satisfying: 2mm≤d2-d1≤5mm.

[0015] Other advantages, objectives, and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or they may be taught by those skilled in the art from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention is described with the following drawings:

[0017] Figure 1 This is a schematic structural diagram of the extraction tool of the present utility model;

[0018] Figure 2 A cross-sectional view of the extraction tool of the present invention;

[0019] Figure 3 This is a schematic structural diagram of the mainboard of the present utility model;

[0020] Figure 4This is a schematic diagram of the coordination of the vertical plate and the inserting plate of the present invention.

[0021] The following are marked in the accompanying drawings:

[0022] 1. Extract the tool;

[0023] 10. Main board; 11. Board body; 111. Via hole; 12. Connecting plate; 13. Handle;

[0024] 20. Vertical plate; 21. Sliding hole;

[0025] 30. Plug-in board. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The schematic implementation methods of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0027] In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention. However, it will be apparent to one skilled in the art that these specific details are not necessarily required to practice the present invention. In other instances, well-known structures, circuits, materials, or methods are not described in detail to avoid obscuring the present invention.

[0028] Throughout this specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout this specification do not necessarily refer to the same embodiment or example. In addition, the particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or subcombination. Furthermore, it will be understood by those of ordinary skill in the art that the figures provided herein are for illustrative purposes only and are not necessarily drawn to scale. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0029] In the description of the present invention, it should be understood that the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0030] Example 1:

[0031] like Figures 1-4 As shown, the utility model provides a sleeve extraction tool 1 for a cross-flow unit, comprising: a main board 10, a vertical plate 20 and an inserting plate 30, the main board 10 is provided with a through hole 111 suitable for accommodating a connecting column, a first sliding portion is provided on the main board 10, and the main board 10 is suitable for cooperating with a pressing tool, a second sliding portion is provided on the vertical plate 20, the first sliding portion and the second sliding portion are slidably matched, the vertical plate 20 can be selectively moved toward or away from the through hole 111, the inserting plate 30 is provided at one end of the vertical plate 20 away from the main board 10, and the free end of the inserting plate 30 extends toward the through hole 111 in the horizontal direction.

[0032] Crossflow turbines are widely used in various industrial fields, such as hydropower generation and cooling systems. These turbines typically consist of a main unit with a connecting column mounted on a sleeve. A certain gap exists between the sleeve and the main unit to accommodate dimensional changes due to assembly, thermal expansion, and contraction. When the sleeve needs to be maintained or replaced, it must be removed from the connecting column. However, due to the small gap between the sleeve and the main unit, traditional removal methods are difficult to achieve (removing the sleeve requires a 100-ton jack, but the output end of the 100-ton jack cannot fit into the gap between the sleeve and the main unit, making it difficult to remove the sleeve).

[0033] In some embodiments, the main board 10 has a through hole 111, the size of which is adapted to the connecting column on the host so that the connecting column can pass through the through hole 111. A first sliding portion is also provided on the main board 10, and the first sliding portion is used to cooperate with the second sliding portion on the vertical plate 20. At the same time, the main board 10 can cooperate with an external pressing tool (such as a jack); a second sliding portion is provided on the vertical plate 20, and the second sliding portion matches the first sliding portion on the main board 10 to allow the vertical plate 20 to slide along the main board 10, so that it can move toward or away from the through hole 111 on the main board 10; the plug-in plate 30 is fixed to the end of the vertical plate 20 away from the main board 10, and the free end (i.e., the end) of the plug-in plate 30 extends horizontally toward the through hole 111 on the main board 10. The plug-in plate 30 follows the vertical plate 20 to move to be selectively inserted into the gap between the sleeve and the host.

[0034] It can be understood that when the sleeve needs to be pulled out, first align the through hole 111 of the mainboard 10 with the connecting column on the host, and place the mainboard 10 in place. Next, align the second sliding part on the vertical plate 20 with the first sliding part on the mainboard 10, and slide the vertical plate 20 to the appropriate position so that the plug-in plate 30 can enter the gap between the sleeve and the host. After the plug-in plate 30 enters the gap, use a pressing tool (such as a jack) to apply an outward force to the mainboard 10. As the pressing tool gradually increases pressure, the mainboard 10 will drive the vertical plate 20 and the plug-in plate 30 to move outward together, thereby applying an outward force to the sleeve. This outward force will eventually cause the sleeve to detach from the connecting column.

[0035] According to the sleeve extraction tool 1 for a cross-flow unit of the present invention, the basic principle of the present application is that through the cooperation of the main board 10, the vertical plate 20 and the plug plate 30, the jack acts on the main board 10 to apply force to the sleeve, thereby achieving the extraction of the sleeve. Moreover, the gap between the main unit and the sleeve is much smaller than the gap between the main board 10 and the main unit or other force points, making the use of the jack more convenient, so that the sleeve can be extracted more conveniently. At the same time, the extraction tool 1 of the present application has a simple principle and is easy to manufacture, so that the production cost of the extraction tool 1 is low.

[0036] It is worth noting that the gap between the sleeve and the main body is L1, and the thickness of the inserting plate 30 is L2. L2 can be smaller than L1 or equal to L1, which is not limited here.

[0037] Example 2:

[0038] In this embodiment, based on the first embodiment, the gap between the sleeve and the main body is L1, and the thickness of the inserting plate 30 is L2, which satisfies the condition that L2<L1.

[0039] In some embodiments, the thickness L2 of the plugboard 30 is smaller than the gap L1 between the sleeve and the host, thereby allowing the plugboard 30 to be smoothly inserted into the gap between the sleeve and the host, thereby achieving effective fixation and support of the sleeve.

[0040] It is worth mentioning that if L2 ≥ L1, the insert plate may get stuck in the gap between the sleeve and the main unit, causing the tool to be unable to be used normally.

[0041] Therefore, when the sleeve needs to be pulled out, the operator only needs to ensure that the insert plate 30 can smoothly enter the gap and apply sufficient force through the pressing tool to successfully complete the task, avoiding the risk of failure of the extraction tool 1 or damage to the equipment due to inappropriate size, thereby improving the efficiency and safety of the maintenance work.

[0042] According to some embodiments of the present invention, the thickness of the insert plate 30 is L2, which satisfies the following: 25 mm ≤ L2 ≤ 35 mm. It is understood that by limiting the thickness of the insert plate 30 to a range of 25 mm to 35 mm, it is possible to ensure that the insert plate 30 can be smoothly inserted into the gap between the sleeve and the main unit while providing sufficient support strength after insertion.

[0043] The thickness of the insert plate 30 determines its strength and stability when subjected to external forces. If the insert plate is too thin (L2 < 25 mm), it may deform or break during use; if it is too thick (L2 > 35 mm), it may not fit smoothly into the gap.

[0044] Example 3:

[0045] In this embodiment, based on the second embodiment, the main board 10 is provided with a plurality of first sliding parts, which are spaced apart in the circumferential direction, and the risers 20 and the inserting plates 30 are constructed to correspond one to one with the first sliding parts.

[0046] In some embodiments, a plurality of first sliding portions are provided on the main board 10, and the plurality of first sliding portions are spaced apart in the circumferential direction of the main board 10 (i.e., the circumferential direction around the through hole 111), that is, the main board 10 does not have only one first sliding portion, but has multiple first sliding portions, so as to increase the flexibility and adaptability of the extraction tool 1; the number of vertical plates 20 and plug plates 30 corresponds one-to-one to the first sliding portions on the main board 10, that is, each first sliding portion has a vertical plate 20 and a plug plate 30 corresponding to it, so as to allow the operator to select different combinations of vertical plates 20 and plug plates 30 according to specific circumstances, thereby realizing multi-point force application in the circumferential direction of the sleeve, thereby making the extraction of the sleeve smoother.

[0047] According to some embodiments of the present invention, there are two first sliding parts, and the two first sliding parts are respectively located on both sides of the through hole 111 in the radial direction.

[0048] In some embodiments, by symmetrically distributing the first sliding parts on both radial sides of the through hole 111, it can be ensured that the vertical plate 20 and the plug plate 30 can be evenly stressed during operation, thereby improving the stability and balance of the extraction tool 1. Moreover, the design of the two first sliding parts is simpler than that of multiple first sliding parts, reducing the manufacturing cost and complexity of the extraction tool 1.

[0049] Therefore, through the design of two symmetrically distributed first sliding parts, the extraction tool 1 can apply force to the sleeve more evenly during use, avoiding the deflection or jamming of the sleeve due to unilateral force. Moreover, the use of only two first sliding parts simplifies the design of the main board 10, reduces the number of parts, and makes the extraction tool 1 easier to manufacture and maintain. Of course, the first sliding parts on both sides of the radial direction can better support the movement of the vertical plate 20 and the plug plate 30, thereby improving the stability and reliability of the overall extraction tool 1.

[0050] According to some embodiments of the present invention, the main board 10 includes: a board body 11 and two connecting plates 12, the board body 11 is provided with a through hole 111 that passes through in the thickness direction, the two connecting plates 12 are respectively connected to the outer peripheral wall of the board body 11, and the geometric center of the through hole 111 is located on the connecting line of the two connecting plates 12; wherein the connecting plate 12 is constructed as a first sliding part, and a sliding hole 21 is provided on the vertical plate 20, and the sliding hole 21 is constructed as a second sliding part, and the sliding hole 21 is movably sleeved on the connecting plate 12.

[0051] In some embodiments, the board body 11 is the main part of the main board 10. The board body 11 is provided with a through hole 111 that passes through in the thickness direction. The through hole 111 is used to accommodate the connecting column on the host. The two connecting plates 12 are respectively connected to the outer peripheral wall of the board body 11, and the positions of the two connecting plates 12 are such that the geometric center of the through hole 111 is located on their connecting line. The connecting plate 12 is constructed as the first sliding part on the main board 10. The vertical plate 20 is provided with a sliding hole 21. The sliding hole 21 is constructed as the second sliding part. The sliding hole 21 can be movably mounted on the connecting plate 12 on the main board 10, so that the vertical plate 20 can slide on the main board 10, thereby adjusting the positions of the vertical plate 20 and the plug-in plate 30.

[0052] It is worth mentioning that the outer peripheral wall of the connecting plate 12 and the inner peripheral wall of the sliding hole 21 cooperate with and restrict each other, so that the vertical plate 20 can stably move along the extension direction of the connecting plate 12, so that the vertical plate 20 can stably move toward or away from the through hole 111, and then the plug-in plate 30 can be smoothly inserted into or pulled out of the gap between the sleeve and the host.

[0053] Therefore, by using two symmetrically distributed connecting plates 12 as the first sliding part, the stability of the vertical plate 20 during movement is ensured, and the shaking and offset of the vertical plate 20 during operation are reduced. Moreover, the vertical plate 20 can slide on the connecting plate 12 through the sliding hole 21, allowing the operator to adjust the position of the vertical plate 20 according to actual conditions, thereby improving the adaptability of the extraction tool 1. Of course, the sliding fit design of the connecting plate 12 and the sliding hole 21 makes the installation and adjustment of the vertical plate 20 simple, reducing the operating difficulty of the extraction tool 1. At the same time, by sliding the sliding hole 21 on the connecting plate 12, the position of the vertical plate 20 can be accurately positioned, ensuring that the plug-in plate 30 can accurately enter the gap between the sleeve and the main unit.

[0054] Example 4:

[0055] In this embodiment, based on the first embodiment, a handle 13 is provided on the side of the mainboard 10 facing away from the plugboard 30. It will be appreciated that the handle 13 allows the operator to easily lift the mainboard 10, particularly when placing it in a desired location. Furthermore, when using a pressing tool, the handle 13 allows the operator to better control the position of the mainboard 10, preventing unnecessary displacement of the mainboard 10 when pressure is applied. Furthermore, the design of the handle 13 enhances the ergonomics of the tool, making operation more comfortable and convenient. Furthermore, the presence of the handle 13 reduces the likelihood of the operator directly contacting the mainboard 10, thereby reducing the risk of accidental injury caused by direct contact with the mainboard 10.

[0056] According to some embodiments of the present invention, the thickness of the vertical plate 20 is L3, which satisfies: 45 mm ≤ L3 ≤ 55 mm, and the thickness of the main plate 10 is L4, which satisfies: 45 mm ≤ L4 ≤ 55 mm.

[0057] It can be understood that the above-mentioned arrangement can ensure that the main board 10 and the vertical board 20 have sufficient strength during use and are not easily deformed or damaged, and can also improve the structural stability of the vertical board 20 and the main board 10, ensuring that when the top pressing tool applies force, the components will not be deformed due to excessive force.

[0058] Of course, through the above-mentioned setting, the vertical plate 20 and the main board 10 can still maintain good performance after multiple uses, thereby extending the service life of the extraction tool 1. At the same time, the vertical plate 20 and the main board 10 have a similar thickness range, which can ensure that the two have consistent performance and stability when used together, and facilitate the production of the main board 10 and the vertical plate 20.

[0059] According to some embodiments of the present invention, the diameter of the connecting column is d1, and the inner diameter of the through hole 111 is d2, which satisfies the following relationship: 2 mm ≤ d2 - d1 ≤ 5 mm.

[0060] In some embodiments, the difference between the inner diameter d2 of the through hole 111 and the diameter d1 of the connecting column satisfies 2mm≤d2-1≤5mm, ensuring that the connecting column can pass through the through hole 111 smoothly, while providing an appropriate gap to prevent the main board 10 from getting stuck or excessively loose, and making it easier for the operator to insert the connecting column into the through hole 111. When external force is applied, the through hole 111 can form a good fit with the connecting column, while ensuring that there is sufficient friction between the main board 10 and the connecting column during use to maintain the stability of the extraction tool 1.

[0061] It is worth noting that the above-mentioned arrangement enables the connecting column to be easily inserted into the through hole 111, thereby reducing the installation time of the mainboard 10. Moreover, it avoids the jamming phenomenon caused by the mainboard 10 and the connecting column being too tight, and also avoids the instability of the extraction tool 1 caused by being too loose. Of course, the gap between the through hole 111 and the connecting column allows the operator to complete the installation and extraction operations of the tool more quickly.

[0062] It is worth mentioning that, although the specific gap range of 2 mm ≤ d2 - d1 ≤ 5 mm is limited, this range is sufficient to accommodate connecting columns of various sizes, thereby enhancing the versatility of the extraction tool 1 .

[0063] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A sleeve extraction tool for a tubular unit, the tubular unit comprising: The host is provided with a connecting column, the connecting column is sleeved with a sleeve, and there is a gap between the sleeve and the host, characterized in that the extraction tool includes: A main board (10), the main board (10) being provided with a through hole (111) suitable for accommodating the connecting column, the main board (10) being provided with a first sliding portion, and the main board (10) being suitable for cooperating with a pressing tool; A vertical plate (20), wherein a second sliding portion is provided on the vertical plate (20), the first sliding portion and the second sliding portion are slidably matched, and the vertical plate (20) can selectively move toward or away from the through hole (111); The inserting plate (30) is arranged at one end of the vertical plate (20) away from the main plate (10), and the free end of the inserting plate (30) extends in a horizontal direction toward the through hole (111).

2. The sleeve extraction tool for a tubular unit according to claim 1, characterized in that: The gap between the sleeve and the main unit is L1, and the thickness of the inserting plate (30) is L2, satisfying the condition that L2 < L1.

3. The sleeve extraction tool for a tubular unit according to claim 2, characterized in that: The thickness of the inserting plate (30) is L2, which satisfies: 25 mm ≤ L2 ≤ 35 mm.

4. The sleeve extraction tool for a tubular unit according to claim 2, characterized in that: The main board (10) is provided with a plurality of first sliding parts, which are arranged at intervals in the circumferential direction, and the vertical plates (20) and the inserting plates (30) are constructed to correspond one to one to the first sliding parts.

5. The sleeve extraction tool for a tubular unit according to claim 4, characterized in that: The first sliding parts are configured in two portions, and the two first sliding parts are respectively located on both sides of the through hole (111) in the radial direction.

6. The sleeve extraction tool for a tubular unit according to claim 5, characterized in that: The main board (10) comprises: A plate body (11), wherein the plate body (11) is provided with the through hole (111) penetrating in the thickness direction; Two connecting plates (12), the two connecting plates (12) are respectively connected to the outer peripheral wall of the plate body (11), and the geometric center of the through hole (111) is located on the connection line of the two connecting plates (12); The connecting plate (12) is configured as the first sliding portion, a sliding hole (21) is provided on the vertical plate (20), the sliding hole (21) is configured as the second sliding portion, and the sliding hole (21) is movably sleeved on the connecting plate (12).

7. The sleeve extraction tool for a tubular unit according to claim 1, characterized in that: A handle (13) is provided on a side of the main board (10) facing away from the plug board (30).

8. The sleeve extraction tool for a tubular unit according to claim 1, characterized in that: The thickness of the vertical plate (20) is L3, which satisfies: 45mm≤L3≤55mm; the thickness of the main plate (10) is L4, which satisfies: 45mm≤L4≤55mm.

9. The sleeve extraction tool for a tubular unit according to claim 1, characterized in that: The diameter of the connecting column is d1, and the inner diameter of the through hole (111) is d2, which satisfies: 2mm≤d2-d1≤5mm.

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