Collet assembly and method

Abstract

The present application belongs to the technical field of slip assembly, and particularly relates to a slip assembly device and method, which comprises an inner sleeve and an outer sleeve, the inner diameter of the outer sleeve is larger than the outer diameter of the support sleeve; the inner sleeve is used for being inserted into the support sleeve, and the length of the inner sleeve is not less than the length of the support sleeve; the outer sleeve is used for being sleeved on the support sleeve, and the outer sleeve is provided with a self-adapting telescopic ring, and the slip can be clamped between the inner sleeve and the outer sleeve through the self-adapting telescopic ring. All the slips are clamped on the support sleeve through the inner sleeve and the outer sleeve to form a stable primary assembly, the primary assembly is lifted, the slips are aligned with the embedded holes on the taper sleeve, and then the primary assembly is pressed down until the slips are completely embedded in the embedded holes, and finally the inner sleeve and the outer sleeve are taken out to complete the assembly of the support sleeve, the slips and the taper sleeve. The present application can improve the assembly efficiency and success rate, and the success rate of one-time assembly is 100%, and only one person is needed for operation.

Description

Technical Field

[0001] This invention belongs to the field of slip assembly technology, specifically relating to a slip assembly device and method. Background Technology

[0002] Slips are tools used to hold and suspend the drill string and casing string during the tripping process in drilling. Currently, the method used to assemble slips, tapered sleeves, and slip support sleeves is as follows: First, assemble multiple slips and slip support sleeves together, with the upper end of the slips fitting into the corresponding hole in the support sleeve; Second, one person lifts the assembled slips and support sleeve assembly, while another person holds the tapered sleeve and inserts each slip into the corresponding gap in the tapered sleeve; Third, tap the upper end of the support sleeve to make the slips smoothly engage with the gap in the tapered sleeve, while ensuring that the raised ribs on both sides of the slips are embedded in the corresponding inclined grooves on both sides of the tapered sleeve.

[0003] The following problems exist in this method: (1) In the first step, the principle of assembling the slip and the support sleeve is that the slip hangs against the corresponding hole of the support sleeve by gravity. When the second step is performed, two people need to cooperate to simultaneously fit the ribs of multiple slips of the same specification into the corresponding rib groove of the cone sleeve. If even one slip rib and the support sleeve rib groove do not fit at this time, the slip will fall off the support sleeve. Once a slip falls off, the cone sleeve will deform under the pressure of the slip that did not fall off, causing the fitting degree between the slip of the fallen slip and the rib groove of the cone to change. The fallen slip cannot be put back into the rib groove of the cone sleeve and can only start from the first step again. The second step of assembly requires repeated attempts by workers, resulting in a low success rate and low efficiency. (2) In the third step, a hammer is often used to strike the support sleeve, causing the ribs on the slip to fit into the corresponding rib grooves of the cone sleeve. The vibration caused by the hammering will cause the slips that are not tightly fitted to the cone sleeve to fall off the support sleeve. Once they fall off, the first step must be started again, resulting in a high rework rate and high time cost. (3) The whole operation seems simple, but in fact, each step has too much uncertainty, is not standardized, and has no standard process flow. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art and provide a clasp assembly device and method to improve the assembly success rate and assembly efficiency.

[0005] The present invention is achieved through the following technical solution: a slip assembly device, comprising an inner sleeve and an outer sleeve, wherein the inner diameter of the outer sleeve is larger than the outer diameter of the support sleeve; the inner sleeve is used to insert into the support sleeve and the length of the inner sleeve is not less than the length of the support sleeve; the outer sleeve is used to fit over the support sleeve, and an adaptive telescopic ring is provided inside the outer sleeve, through which the slip can be clamped between the inner sleeve and the outer sleeve.

[0006] Furthermore, the adaptive telescopic ring includes elastic units arranged along the radial direction of the clamping sleeve. The number of elastic units is consistent with the number of slips, and the elastic units are distributed corresponding to the slip suspension holes on the support sleeve.

[0007] Furthermore, the elastic unit includes a spring, one end of which is fixed in the spring mounting hole of the outer sleeve, and the other end is connected to a pressure contact; the pressure contact can move in and out of the spring mounting hole under the action of the spring.

[0008] Furthermore, the pressure contact is annular or cylindrical.

[0009] Furthermore, the elastic unit is an elastic protrusion fixedly connected to the inner wall of the outer sleeve.

[0010] Furthermore, the adaptive telescopic ring includes an elastic inner ring that is sleeved and fixed on the inner wall of the outer sleeve.

[0011] Furthermore, the outer sleeve is annular.

[0012] Furthermore, one end of the inner sleeve body is provided with a flange, and the length of the sleeve body is equal to the length of the support sleeve.

[0013] Furthermore, the outer diameter of the inner sleeve is equal to the inner diameter of the support sleeve, the outer diameter of the inner sleeve is taken as the lower tolerance of the free tolerance, and the inner diameter of the support sleeve is taken as the upper tolerance of the free tolerance.

[0014] The present invention also provides a method for assembling slips, using the above-mentioned slip assembly device, and including the following steps: selecting an inner sleeve and an outer sleeve that match the specifications and model of the support sleeve; hooking each slip onto each slip suspension hole of the support sleeve; clamping all slips onto the support sleeve through the inner sleeve and the outer sleeve to form a stable primary assembly; lifting the primary assembly and aligning the slips with the fitting holes on the conical sleeve, pressing down until the slips are fully fitted into the fitting holes; and finally removing the inner sleeve and the outer sleeve to complete the assembly of the support sleeve, slips, and conical sleeve.

[0015] Furthermore, the range of outer diameters of the support sleeve to which the outer jacket can be applied is determined based on the range of variation in the bore diameter of the adaptive expansion ring.

[0016] Furthermore, the force required to insert or remove the outer sleeve is designed based on the range of expansion and contraction of the adaptive telescopic ring and the coefficient of friction of the slip material.

[0017] Compared with the prior art, the beneficial effects of the present invention include:

[0018] 1. High assembly success rate: Compared with traditional assembly methods, the assembly device and usage method described in this invention achieve a 100% success rate in one assembly attempt.

[0019] 2. Higher assembly efficiency. Compared with traditional assembly methods, the assembly device and method described in this invention have higher assembly efficiency. Previously, two people were required to work together, but now only one person is needed to complete the assembly.

[0020] 3. The assembly process is simple. During assembly, ① place the inner sleeve inside the support sleeve and hang the slip on the support sleeve; ② use the clamping device to clamp the connection between the slip and the support sleeve; ③ pick up the support sleeve with the slip and let the slip fit into the conical sleeve.

[0021] 4. The outer diameter of the inner sleeve is equal to the inner diameter of the support sleeve. The outer diameter of the inner sleeve is taken within the lower tolerance of the free tolerance, and the inner diameter of the support sleeve is taken within the upper tolerance of the free tolerance. This ensures that the inner sleeve can be smoothly inserted into the support sleeve, and also allows the outer circumferential surface of the inner sleeve to fit tightly against the inner circumferential surface of the support sleeve, thus enabling it to work together with the outer sleeve to provide a more stable clamping effect.

[0022] 5. A single outer sleeve can be used with support sleeves of different specifications, which can save costs.

[0023] 6. By designing the radial expansion and contraction range of the adaptive telescopic ring, the force required to fit or remove the outer sleeve can be adjusted, reducing the required force and making the assembly process easier. Attached Figure Description

[0024] Figure 1 This is a structural diagram of the Kava;

[0025] Figure 2 This is a schematic diagram of the support sleeve structure;

[0026] Figure 3 This is a schematic diagram of the conical sleeve structure;

[0027] Figure 4 This is a schematic diagram of the inner jacket structure;

[0028] Figure 5 This is a schematic diagram of the outer jacket structure;

[0029] Figure 6 This is a schematic diagram illustrating the assembly of the clamp, cone sleeve, and support sleeve using this method;

[0030] Figure 7 This is a schematic diagram of the assembled slip, cone sleeve, and support sleeve.

[0031] In the diagram, 1-inner sleeve, 2-support sleeve, 3-outer sleeve, 4-slip, 5-cone sleeve. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings:

[0033] Slips are tools used during drilling operations to hold and suspend the drill string and casing string during tripping in and out of the well. They need to be assembled with the support sleeve and tapered sleeve before use. The structures of the slips, support sleeve, and tapered sleeve are described in detail below. Figures 1 to 3 As shown, the workpiece has threads on the outer surface of the slip and ribs with a certain angle on both sides; the support sleeve has a metal sleeve with a fitting hole (usually six) with the upper end of the slip; the conical sleeve has a fitting hole with the lower end of the slip and rib grooves on both sides.

[0034] The present invention provides a slip assembly device, comprising an inner sleeve and an outer sleeve, wherein the inner diameter of the outer sleeve is larger than the outer diameter of the support sleeve; the inner sleeve is used to insert into the support sleeve and the length of the inner sleeve is not less than the length of the support sleeve; the outer sleeve is used to fit over the support sleeve, and an adaptive telescopic ring is provided inside the outer sleeve, through which the slip can be clamped between the inner sleeve and the outer sleeve.

[0035] refer to Figure 4 As shown, one end of the inner sleeve has a flange, and the length of the sleeve body is equal to the length of the support sleeve. This ensures that after the inner sleeve is inserted into the support sleeve, the bottom of the inner sleeve can extend to the point where the slip and the support sleeve are hooked together, saving material costs. The flange provides a limit to prevent the inner sleeve from being completely inserted into the support sleeve and unable to be removed. At the same time, it is also more convenient to hold the primary assembly (the inner and outer sleeves clamp all the slips onto the support sleeve).

[0036] The outer diameter of the inner sleeve is equal to the inner diameter of the support sleeve. The outer diameter of the inner sleeve is taken within the lower tolerance of the free tolerance, and the inner diameter of the support sleeve is taken within the upper tolerance of the free tolerance. This ensures that the inner sleeve can be smoothly inserted into the support sleeve, and that the outer circumferential surface of the inner sleeve fits tightly against the inner circumferential surface of the support sleeve, thus providing a more stable clamping effect together with the outer sleeve.

[0037] The range of outer diameters of the support sleeves to which the outer jacket can be applied is determined based on the range of variation in the bore diameter of the adaptive expansion ring.

[0038] To facilitate the insertion or removal of the outer sleeve, the force required to insert or remove the outer sleeve can be designed based on the radial expansion and contraction range of the adaptive telescopic ring and the friction coefficient of the slip material.

[0039] The inner and outer jackets can be made of materials that do not easily deform after extrusion, such as metal, carbon fiber, and engineering plastics.

[0040] The adaptive expansion ring can be implemented using different structural forms, which will be described below with reference to various embodiments.

[0041] Example 1

[0042] In this embodiment, the adaptive telescopic ring includes elastic units arranged radially along the clamping sleeve. The number of elastic units is the same as the number of slips, and the elastic units are distributed corresponding to the slip suspension holes on the support sleeve. The elastic units are arranged in a ring along the outer clamping sleeve to form the adaptive telescopic ring.

[0043] refer to Figure 5 As shown, the elastic unit includes a spring, one end of which is fixed in the spring mounting hole of the outer sleeve, and the other end is connected to a pressure contact; the pressure contact can move in and out of the spring mounting hole under the action of the spring; the pressure contact is annular or cylindrical.

[0044] A single outer sleeve can be used for support sleeves of different specifications. The applicable size range depends on the accuracy coefficient of the compression spring inside the device. The accuracy coefficient determines the amount of compression, which in turn determines the applicable support sleeve size.

[0045] Assuming the mass of a locking piece is m, its surface friction coefficient is μ, and the spring constant is k, then the compression length of the spring is l = μmg / k. The applicable size range of the locking device can be determined based on the spring compression length and the size of the support sleeve.

[0046] Taking 304 stainless steel as an example, its coefficient of friction is 0.4. A 7″ spring clip weighs 300g, and the gravitational constant g is taken as 9.8N / kg. Therefore, the compression of the spring is l = 300 * 9.8 * 0.4 * 10⁻⁶. -3 / k.

[0047] The ease with which the clamping device can be removed and reinstalled depends on the material of the clamping jaws and the coefficient of friction. Taking 304 stainless steel as an example, the spring compression force during assembly is F = k * l = 300 * 9.8 * 0.4 * 10. -3 / k*k=1.176N. This is approximately the weight of 3 eggs, making it easy to remove and insert.

[0048] The inner sleeve has a flange at one end, and the length of the sleeve is equal to the length of the support sleeve. This ensures that after the inner sleeve is inserted into the support sleeve, the bottom of the inner sleeve can extend to the point where the slip and the support sleeve are hooked, saving material costs. The flange limits the movement and prevents the inner sleeve from being completely inserted into the support sleeve and unable to be removed. At the same time, it also makes it easier to hold the primary assembly (the inner and outer sleeves clamp all the slips onto the support sleeve).

[0049] The outer diameter of the inner sleeve is equal to the inner diameter of the support sleeve. The outer diameter of the inner sleeve is taken within the lower tolerance of the free tolerance, and the inner diameter of the support sleeve is taken within the upper tolerance of the free tolerance. This ensures that the inner sleeve can be smoothly inserted into the support sleeve, and that the outer circumferential surface of the inner sleeve fits tightly against the inner circumferential surface of the support sleeve, thus providing a more stable clamping effect together with the outer sleeve.

[0050] A method for assembling a clamping sleeve, using the clamping sleeve assembly device of this embodiment, includes the following steps: selecting an inner clamping sleeve and an outer clamping sleeve that match the specifications and model of the support sleeve;

[0051] Hang each clip on the clip suspension hole of the support sleeve;

[0052] The inner and outer sleeves clamp all the slips onto the support sleeve to form a stable primary assembly.

[0053] Lift the primary assembly and align the slip with the fitting hole on the cone sleeve. Press down until the slip is fully fitted with the fitting hole. Finally, remove the inner and outer sleeves to complete the assembly of the support sleeve, slip, and cone sleeve.

[0054] Taking a 6-piece clasp as an example, the clasp assembly process is as follows: Figure 6 The specific steps are as shown:

[0055] First, place the cylindrical metal inner sleeve into the support sleeve, and then place the six slips one by one on the slip suspension holes of the support sleeve.

[0056] Then, the outer sleeve is inserted from one end of the inner sleeve into the connection between the collet and the support sleeve, so that the elastic unit is tightly pressed against the connection.

[0057] Next, lift the primary assembly and align the slips with the fitting holes on the tapered sleeve, ensuring the ribs on both sides of the slips fit perfectly into the grooves on both sides of the tapered sleeve. Then press down firmly until the slips are fully engaged with the tapered sleeve holes. Finally, remove the sleeve and clamping device to complete the assembly. (Refer to...) Figure 7 As shown.

[0058] Because the collet is firmly fixed by the inner and outer sleeves throughout the assembly process, it will not fall off the support sleeve, and there will be no need to start over repeatedly. Assembly can be completed in one go, with a 100% success rate. The assembly efficiency is higher, and previously it required two people to work together, but now only one person is needed to complete the assembly.

[0059] Example 2

[0060] In this embodiment, the adaptive telescopic ring includes elastic units arranged along the radial direction of the clamping sleeve. The number of elastic units is the same as the number of slips. The elastic units are distributed in accordance with the slip suspension holes on the support sleeve. The elastic units are distributed in a ring along the outer clamping sleeve to form an adaptive telescopic ring.

[0061] The elastic unit is an elastic protrusion fixedly connected to the inner wall of the outer jacket. The elastic protrusion can be made of rubber or vulcanized rubber and is fixed to the inner wall of the outer jacket by adhesive.

[0062] The inner sleeve has a flange at one end, and the length of the sleeve is equal to the length of the support sleeve. This ensures that after the inner sleeve is inserted into the support sleeve, the bottom of the inner sleeve can extend to the point where the slip and the support sleeve are hooked, saving material costs. The flange limits the movement and prevents the inner sleeve from being completely inserted into the support sleeve and unable to be removed. At the same time, it is also more convenient to hold the primary assembly (the inner and outer sleeves clamp all the slips onto the support sleeve).

[0063] The outer diameter of the inner sleeve is equal to the inner diameter of the support sleeve. The outer diameter of the inner sleeve is taken within the lower tolerance of the free tolerance, and the inner diameter of the support sleeve is taken within the upper tolerance of the free tolerance. This ensures that the inner sleeve can be smoothly inserted into the support sleeve, and that the outer circumferential surface of the inner sleeve fits tightly against the inner circumferential surface of the support sleeve, thus providing a more stable clamping effect together with the outer sleeve.

[0064] A method for assembling a clamping sleeve, using the clamping sleeve assembly device of this embodiment, includes the following steps: selecting an inner clamping sleeve and an outer clamping sleeve that match the specifications and model of the support sleeve;

[0065] Hang each clip on the clip suspension hole of the support sleeve;

[0066] The inner and outer sleeves clamp all the slips onto the support sleeve to form a stable primary assembly.

[0067] Lift the primary assembly and align the slip with the fitting hole on the cone sleeve. Press down until the slip is fully fitted with the fitting hole. Finally, remove the inner and outer sleeves to complete the assembly of the support sleeve, slip, and cone sleeve.

[0068] The specific steps for assembling the Kava are as follows:

[0069] First, place the cylindrical metal inner sleeve into the support sleeve, and then place each piece of the slip on the slip hanging hole of the support sleeve one by one.

[0070] Then, the outer sleeve is inserted from one end of the inner sleeve into the connection between the collet and the support sleeve, so that the elastic unit is tightly pressed against the connection.

[0071] Next, lift the primary assembly and align the slip with the fitting hole on the cone sleeve, so that the ribs on both sides of the slip fit into the rib grooves on both sides of the cone sleeve. Then press down until the slip and the cone sleeve hole are completely fitted.

[0072] Finally, remove the sleeve and clamping device to complete the assembly.

[0073] Because the collet is firmly fixed by the inner and outer sleeves throughout the assembly process, it will not fall off the support sleeve, and there will be no need to start over repeatedly. Assembly can be completed in one go, with a 100% success rate. The assembly efficiency is higher, and previously it required two people to work together, but now only one person is needed to complete the assembly.

[0074] Example 3

[0075] In this embodiment, the adaptive telescopic ring includes an elastic inner ring that is sleeved and fixed to the inner wall of the outer jacket. The elastic inner ring can be made of rubber or vulcanized rubber material and is fixed to the inner wall of the outer jacket by adhesive.

[0076] The diameter of the elastic inner ring is larger than the outer diameter of the inner sleeve, but smaller than the outer diameter of the support sleeve. The slip is clamped by squeezing the support sleeve.

[0077] The inner sleeve has a flange at one end, and the length of the sleeve is equal to the length of the support sleeve. This ensures that after the inner sleeve is inserted into the support sleeve, the bottom of the inner sleeve can extend to the point where the slip and the support sleeve are hooked, saving material costs. The flange limits the movement and prevents the inner sleeve from being completely inserted into the support sleeve and unable to be removed. At the same time, it is also more convenient to hold the primary assembly (the inner and outer sleeves clamp all the slips onto the support sleeve).

[0078] The outer diameter of the inner sleeve is equal to the inner diameter of the support sleeve. The outer diameter of the inner sleeve is taken within the lower tolerance of the free tolerance, and the inner diameter of the support sleeve is taken within the upper tolerance of the free tolerance. This ensures that the inner sleeve can be smoothly inserted into the support sleeve, and that the outer circumferential surface of the inner sleeve fits tightly against the inner circumferential surface of the support sleeve, thus providing a more stable clamping effect together with the outer sleeve.

[0079] A method for assembling a clamping sleeve, using the clamping sleeve assembly device of this embodiment, includes the following steps: selecting an inner clamping sleeve and an outer clamping sleeve that match the specifications and model of the support sleeve;

[0080] Hang each clip on the clip suspension hole of the support sleeve;

[0081] The inner and outer sleeves clamp all the slips onto the support sleeve to form a stable primary assembly.

[0082] Lift the primary assembly and align the slip with the fitting hole on the cone sleeve. Press down until the slip is fully fitted with the fitting hole. Finally, remove the inner and outer sleeves to complete the assembly of the support sleeve, slip, and cone sleeve.

[0083] The specific steps for assembling the Kava are as follows:

[0084] First, place the cylindrical metal inner sleeve into the support sleeve, and then place each piece of the slip on the slip hanging hole of the support sleeve one by one.

[0085] Then, the outer sleeve is inserted from one end of the inner sleeve into the joint between the slip and the support sleeve, so that the elastic inner ring tightly wraps and squeezes the joint.

[0086] Next, lift the primary assembly and align the slip with the fitting hole on the cone sleeve, so that the ribs on both sides of the slip fit into the rib grooves on both sides of the cone sleeve. Then press down until the slip and the cone sleeve hole are completely fitted.

[0087] Finally, remove the sleeve and clamping device to complete the assembly.

[0088] Because the collet is firmly fixed by the inner and outer sleeves throughout the assembly process, it will not fall off the support sleeve, and there will be no need to start over repeatedly. Assembly can be completed in one go, with a 100% success rate. The assembly efficiency is higher, and previously it required two people to work together, but now only one person is needed to complete the assembly.

[0089] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0090] In the description of this invention, unless otherwise stated, the terms "upper," "lower," "left," "right," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0091] The above technical solution is only one embodiment of the present invention. For those skilled in the art, based on the principles disclosed in the present invention, it is easy to make various types of improvements or modifications, and not limited to the technical solutions described in the specific embodiments of the present invention. Therefore, the foregoing description is only a preferred option and is not restrictive.

Claims

1. A slip assembly device for assembling multiple independent slips onto a support sleeve, characterized in that: It includes an inner sleeve and an outer sleeve, the inner diameter of the outer sleeve is larger than the outer diameter of the support sleeve; the inner sleeve is used to be inserted into the support sleeve and the length of the inner sleeve is not less than the length of the support sleeve; the outer sleeve is used to be sleeved on the outside of the support sleeve, and an adaptive telescopic ring is provided inside the outer sleeve, through which the slip can be clamped between the inner sleeve and the outer sleeve. The inner sleeve has a flange at one end; The adaptive telescopic ring includes an elastic unit arranged along the radial direction of the clamping sleeve; the elastic unit is capable of abutting against the engagement point between the slip and the support sleeve; The number of elastic units is the same as the number of slips, and the elastic units correspond to the distribution of slip suspension holes on the support sleeve; The elastic unit includes a spring, one end of which is fixed in the spring mounting hole of the outer sleeve, and the other end is connected to a pressure contact; the pressure contact can move in and out of the spring mounting hole under the action of the spring.

2. The locator assembly device according to claim 1, characterized in that: The pressure contact is ring-shaped or cylindrical.

3. The locator assembly device according to claim 1, characterized in that: The adaptive telescopic ring includes an elastic inner ring that is sleeved and fixed on the inner wall of the outer sleeve.

4. The locator assembly device according to claim 1, characterized in that: The outer sleeve is circular.

5. The locator assembly device according to claim 1, characterized in that: The length of the sleeve body is equal to the length of the support sleeve.

6. The swivel assembly device according to claim 1, characterized in that: The outer diameter of the inner sleeve is equal to the inner diameter of the support sleeve. The outer diameter of the inner sleeve is taken as the lower tolerance of the free tolerance, and the inner diameter of the support sleeve is taken as the upper tolerance of the free tolerance.

7. A method for assembling slips, used to assemble multiple independent slips onto a support sleeve, characterized in that: The clamp assembly device as described in any one of claims 1 to 6 includes the following steps: selecting an inner and outer clamp that match the specifications and model of the support sleeve; hooking each clamp onto the clamp suspension hole of the support sleeve; inserting the outer clamp into the connection between the clamp and the support sleeve from one end of the inner clamp, so that the elastic unit tightly abuts against the connection between the clamp and the support sleeve, clamping all the clamps on the support sleeve through the inner and outer clamps to form a stable primary assembly; lifting the primary assembly and aligning the clamps with the fitting holes on the conical sleeve, pressing down until the clamps are fully fitted into the fitting holes; finally removing the inner and outer clamps to complete the assembly of the support sleeve, clamps, and conical sleeve.

8. The method for assembling a clapper according to claim 7, characterized in that: The range of outer diameters of the support sleeves to which the outer jacket can be applied is determined based on the range of variation in the bore diameter of the adaptive expansion ring.

9. The method for assembling a clapper according to claim 8, characterized in that: The force required to insert or remove the outer jacket is designed based on the radial expansion and contraction range of the adaptive expansion ring and the friction coefficient of the slip material.

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