A tool for disassembling a carbon ring

Abstract

The present disclosure provides a tool for disassembling a carbon ring, comprising a positioning structure, a connecting structure and a driving structure, the positioning structure is provided with a first positioning hole and a plurality of second positioning holes, the plurality of second positioning holes are arranged on the circumferential side of the first positioning hole and opposite to each other in pairs; the connecting structure comprises a first screw rod and a second screw rod, the first screw rod is rotatably screwed into one of the second positioning holes, the second screw rod is rotatably screwed into the other second positioning hole, and the first screw rod, the first positioning hole and the second screw rod are distributed along a straight line; the driving structure comprises a first nut and a second nut, the first nut is sleeved on the first screw rod and connected with the external thread on the first screw rod, the second nut is sleeved on the second screw rod and connected with the external thread on the second screw rod, and the first nut and the second nut are located on the same side of the positioning structure. The positioning structure positions the disassembling process to reduce the probability of skewing of the disassembling tool.

Description

Technical Field

[0001] This disclosure relates to the field of disassembly and assembly tools, and more particularly to a tool for disassembling and assembling carbon rings. Background Technology

[0002] Carbon ring seals, as a type of contact-type dynamic seal, are widely used in shaft end sealing systems of high-speed rotating machinery such as steam turbines, centrifugal compressors, and blowers. The sealing principle of carbon rings mainly relies on the annular seal made of high-purity carbon material forming a micron-level contact gap with the surface of the rotating shaft under preload, thereby achieving effective sealing by controlling leakage.

[0003] Currently, during the disassembly and assembly of carbon rings, the disassembly and assembly tools are prone to tilting relative to the carbon ring, requiring constant adjustment of the tools, which results in a long disassembly and assembly time for the carbon rings. Utility Model Content

[0004] This disclosure provides a tool for disassembling and assembling carbon rings, and one of the technical problems it aims to solve is to reduce the probability of the tool becoming misaligned, thereby shortening the disassembly and assembly time of the carbon rings.

[0005] To solve the above-mentioned technical problems, this disclosure provides a tool for disassembling and assembling carbon rings. The tool may include: a positioning structure, a connecting structure, and a driving structure. The positioning structure has a first positioning hole and a plurality of second positioning holes, which are arranged on the periphery of the first positioning hole and are opposite to each other in pairs. The connecting structure includes: a first lead screw and a second lead screw. The first lead screw is rotatably screwed into one of the second positioning holes, and the second lead screw is rotatably screwed into another second positioning hole. The first lead screw, the first positioning hole, and the second lead screw are distributed in a straight line. The driving structure includes: a first nut and a second nut. The first nut is sleeved on the first lead screw and is connected to the external thread on the first lead screw. The second nut is sleeved on the second lead screw and is connected to the external thread on the second lead screw. The first nut and the second nut are located on the same side of the positioning structure.

[0006] In some embodiments, the positioning structure includes: a first positioning member and a second positioning member; the first positioning member is annular, and its central hole forms the first positioning hole; the second positioning member is sleeved on the first positioning member and fixed relative to the first positioning member along the sleeved direction, and the second positioning member is provided with the second positioning hole.

[0007] In some embodiments, the first positioning member has a first segment and a second segment distributed in a direction opposite to the sleeve direction, and the outer peripheral dimension of the first segment is larger than the outer peripheral dimension of the second segment, so that the peripheral side of the first positioning member has a stepped surface; when the second positioning member is sleeved on the first positioning member in the sleeve direction, it abuts against the stepped surface.

[0008] In some embodiments, the second positioning member can be displaced in a direction opposite to the sleeve direction to separate from the first positioning member.

[0009] In some embodiments, the first positioning member is provided with a first magnetic suction member; the second positioning member is provided with a second magnetic suction member; when the second positioning member is sleeved on the first positioning member along the sleeve direction, the first magnetic suction member and the second magnetic suction member have mutual attraction force.

[0010] In some embodiments, the outer periphery of the first positioning member is provided with at least one protrusion extending along the sleeve direction, and the second positioning member is provided with a groove adapted to the protrusion. When the second positioning member is sleeved on the first positioning member along the sleeve direction, the protrusion is located in the groove and abuts against the inner sidewall and inner bottom wall of the groove.

[0011] In some embodiments, the surface of the first segment facing away from the second segment along the sleeve direction is a smooth surface.

[0012] In some embodiments, the second positioning member includes: a first part and a second part, both of which are arc-shaped, the first part and the second part are detachably connected, and after the first part and the second part are connected, the first part and the second part cooperate to form a sleeve hole for fitting the first positioning member.

[0013] In some embodiments, the first portion and the second portion are connected by screws; or, the first portion and the second portion are connected by adsorption.

[0014] In some embodiments, the two ends of the first portion and the two ends of the second portion form two mating positions; the second positioning member further includes: a plurality of gaskets, with gaskets of the same thickness clamped at the two mating positions respectively.

[0015] The tool for disassembling and assembling carbon rings provided by this disclosure through the above technical solution may include: a positioning structure, a connecting structure, and a driving structure. The positioning structure can cooperate with the rotating shaft for assembling the carbon ring. During the disassembly and assembly of the carbon ring, the positioning structure is sleeved on the rotating shaft and fixed radially relative to the rotating shaft, thereby reducing the probability of the disassembly and assembly tool being misaligned relative to the carbon ring. The connecting structure is set on the positioning structure and can be screwed into the threaded hole on the carbon ring. Then, the driving structure can drive the connecting structure to apply an axial driving force to the carbon ring, so that the carbon ring is assembled on the rotating shaft along the connecting structure or disassembled from the rotating shaft.

[0016] The above description is only an overview of the technical solution of this disclosure. In order to better understand the technical means of this disclosure and to implement it in accordance with the contents of the specification, the preferred embodiments of this disclosure are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the tool for disassembling and assembling carbon rings provided in this disclosure. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of the tool for disassembling and assembling carbon rings provided in this disclosure. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the positioning structure of the tool for disassembling and assembling carbon rings provided in this disclosure;

[0021] Figure 4 This is an exploded view of the positioning structure of the tool for disassembling and assembling carbon rings provided in this disclosure;

[0022] Figure 5 This is a cross-sectional structural diagram of the tool for disassembling and assembling carbon rings provided in this disclosure;

[0023] Figure 6 This is a schematic diagram of the structure of the second positioning component of the tool for disassembling and assembling carbon rings provided in this disclosure;

[0024] Figure 7 This is a cross-sectional schematic diagram of the tool for disassembling and assembling carbon rings provided in this disclosure (for disassembling carbon rings);

[0025] Figure 8This is a cross-sectional schematic diagram of the tool for assembling and disassembling carbon rings (carbon ring installation) provided in this disclosure.

[0026] Explanation of reference numerals in the attached figures:

[0027] 10. Tool for assembling and disassembling carbon rings; 11. Positioning structure; 111. First positioning hole; 112. Second positioning hole; 113. First positioning element; 1131. First section; 1132. Second section; 1133. Stepped surface; 114. Second positioning element; 1141. First part; 1142. Second part; 1143. Screw; 1144. Sleeve hole; 12. Connecting structure; 121. First lead screw; 122. Second lead screw; 13. Drive structure; 131. First nut; 132. Second nut; 20. Carbon ring; 30. Rotating shaft. Detailed Implementation

[0028] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0029] These embodiments are provided to make the disclosure thorough and complete, and to fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0030] It should be noted that, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this disclosure 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, and therefore should not be construed as a limitation of this disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] Furthermore, the terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after the word, and do not exclude the possibility of encompassing other elements as well.

[0032] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installed," "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 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 disclosure depending on the specific circumstances. When a particular device is described as being located between a first device and a second device, an intermediary device may or may not be present between the particular device and the first or second device.

[0033] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0034] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0035] Carbon ring seals, as a type of contact-type dynamic seal, are widely used in shaft end sealing systems of high-speed rotating machinery such as steam turbines, centrifugal compressors, and blowers. The sealing principle of carbon rings mainly relies on the annular seal made of high-purity carbon material forming a micron-level contact gap with the surface of the rotating shaft under preload, thereby achieving effective sealing by controlling leakage.

[0036] Currently, during the disassembly and assembly of carbon rings, the disassembly and assembly tools are prone to tilting relative to the carbon ring, requiring constant adjustment of the tools, which results in a long disassembly and assembly time for the carbon rings.

[0037] The inventors of this disclosure have discovered a tool for assembling and disassembling carbon rings. This tool may include a positioning structure, a connecting structure, and a driving structure. The positioning structure can be sleeved on a rotating shaft for assembling the carbon ring and is parallel to the axis of the rotating shaft. The first and second lead screws of the connecting structure can both be rotatably mounted on the positioning structure and are both parallel to the axis of the rotating shaft. Simultaneously, the first and second lead screws can both be screwed into threaded holes on the carbon ring and, driven by the driving structure, apply an axial driving force to the carbon ring, causing the carbon ring to be assembled onto or detached from the rotating shaft along the connecting structure. Here, the tool for assembling and disassembling the carbon ring, through the positioning structure and the rotating shaft for assembling the carbon ring, maintains parallelism between the tool and the axis of the rotating shaft during the assembly and disassembly process, thereby reducing the probability of the tool becoming misaligned relative to the carbon ring.

[0038] This disclosure provides a tool 10 for disassembling and assembling carbon rings, see [link]. Figures 1 to 8 The tool may include: a positioning structure 11, a connecting structure 12, and a driving structure 13. The positioning structure 11 has a first positioning hole 111 and a plurality of second positioning holes 112, which are arranged around the first positioning hole 111 and opposite to each other in pairs. The connecting structure 12 may include: a first lead screw 121 and a second lead screw 122. The first lead screw 121 is rotatably screwed into one of the second positioning holes 112, and the second lead screw 122 is rotatably screwed into another second positioning hole 112. The first lead screw 121, the first positioning hole 111, and the second lead screw 122 are distributed along a straight line. The driving structure 13 may include: a first nut 131 and a second nut 132. The first nut 131 is sleeved on the first lead screw 121 and is connected to the external thread on the first lead screw 121. The second nut 132 is sleeved on the second lead screw 122 and is connected to the external thread on the second lead screw 122. The first nut 131 and the second nut 132 are located on the same side of the positioning structure 11.

[0039] The positioning structure 11 is used to connect the tool 10 for disassembling and assembling the carbon ring 20 (hereinafter referred to as the disassembly and assembly tool) to the rotating shaft 30 on which the carbon ring 20 is installed or about to be installed, and to position it at least radially relative to the rotating shaft 30. The first positioning hole 111 of the positioning structure 11 is used to fit onto the rotating shaft 30, and the diameter of the first positioning hole 111 can be slightly larger than the outer diameter of the rotating shaft 30, so that the gap between the positioning structure 11 and the outer diameter of the rotating shaft 30 after the first positioning hole 111 is fitted onto the rotating shaft 30 is extremely small, so as to achieve radial positioning of the positioning structure 11 and the rotating shaft 30 (i.e., their axes are parallel to each other), and at the same time reduce the probability of friction damage to the rotating shaft 30 caused by friction between the positioning structure 11 and the rotating shaft 30 during the process of fitting the positioning structure 11 onto the rotating shaft 30; for example, the diameter of the first positioning hole 111 is the same as the diameter of the central hole on the carbon ring 20 used to fit the rotating shaft 30. Multiple second positioning holes 112 are arranged around the periphery of the first positioning hole 111 and are arranged in pairs opposite each other; for example, there are four second positioning holes 112, which are distributed in a square, and the geometric center of the square coincides with the axis of the first positioning hole 111; or there are six second positioning holes 112, which are distributed in a regular hexagon, and the geometric center of the regular hexagon coincides with the axis of the first positioning hole 111.

[0040] The connecting structure 12 is connected to the positioning structure 11. When the positioning structure 11 is connected to the rotating shaft 30, the connecting structure 12 is opposite to the threaded hole on the carbon ring 20. Alternatively, the connecting structure 12 with the carbon ring 20 can be fitted together with the positioning structure 11 around the rotating shaft 30. The first lead screw 121 passes through a second positioning hole 112, and the external thread of the first lead screw 121 matches the internal thread of the inner wall of the second positioning hole 112, so that the first lead screw 121 and the second positioning hole 112 are screwed together, and the first lead screw 121 is displaced along the second positioning hole 112 under the action of rotational force; the second lead screw 122 passes through another second positioning hole 112, and the external thread of the second lead screw 122 matches the internal thread of the second positioning hole 112, so that the second lead screw 122 and the second positioning hole 112 are screwed together, and the second lead screw 122 is displaced along the second positioning hole 112 under the action of rotational force; after the first lead screw 121 and the second lead screw 122 are respectively passed through the two second positioning holes 112, the first lead screw 121 and the second lead screw 122 are symmetrically located on both sides of the first positioning hole 111 and the rotating shaft 30 in the radial direction of the positioning structure 11.

[0041] The driving structure 13 applies a rotational force to the first lead screw 121 and the second lead screw 122 of the connecting structure 12. A first nut 131 is sleeved on the first lead screw 121 and threadedly connected to it, so that the first lead screw 121 can rotate when subjected to a rotational force. A second nut 132 is sleeved on the second lead screw 122 and threadedly connected to it, so that the second lead screw 122 can rotate when subjected to a rotational force. The first nut 131 and the second nut 132 are located on the same side of the positioning structure 11 along the axial direction of the first positioning hole 111. This can be either the side of the positioning structure 11 that opens at one end corresponding to the first positioning hole 111, or the side that opens at the other end corresponding to the first positioning hole 111.

[0042] See one example. Figures 1 to 8The tool 10 for disassembling and assembling carbon rings may include: a positioning structure 11, a connecting structure 12, and a driving structure 13. The positioning structure 11 has a first positioning hole 111 and a plurality of second positioning holes 112. The first positioning hole 111 is located at the center of the positioning structure 11, and the plurality of second positioning holes 112 are arranged around the first positioning hole 111 and are opposite to each other in pairs. The connecting structure 12 includes: a first lead screw 121 and a second lead screw 122. The first lead screw 121 is rotatably inserted through a second positioning hole 112, and the second lead screw 122 is rotatable. The first lead screw 121, the first positioning hole 111, and the second lead screw 122 are distributed in a straight line. The driving structure 13 includes a first nut 131 and a second nut 132. The first nut 131 is sleeved on the first lead screw 121 and is connected to the external thread on the first lead screw 121. The second nut 132 is sleeved on the second lead screw 122 and is connected to the external thread on the second lead screw 122. The first nut 131 and the second nut 132 are located on the same side of the positioning structure 11.

[0043] When installing the carbon ring 20 onto the rotating shaft 30, one possible procedure for using this tool is as follows:

[0044] S101: Align one end of the first lead screw 121 and one end of the second lead screw 122 with the two corresponding threaded holes on the carbon ring 20, respectively;

[0045] S102: A clockwise rotational force is applied to the first nut 131 and the second nut 132 respectively. Since the first lead screw 121 and the second lead screw 122 are respectively constrained by the threads of the corresponding second positioning holes 112 and cannot rotate freely, the rotation of the first nut 131 and the second nut 132 will be converted into axial movement of the first lead screw 121 and the second lead screw 122. This causes the first lead screw 121 and the second lead screw 122 to be displaced relative to the positioning structure 11 in the axial direction (such as forward displacement) and screwed into the two threaded holes corresponding to the carbon ring 20.

[0046] S103: The center hole and the first positioning hole 111 on the carbon ring 20 are both aligned with the rotating shaft 30, and the disassembly and assembly tool is pushed toward the rotating shaft 30 along the axial direction of the first positioning hole 111, so as to simultaneously fit the center hole and the first positioning hole 111 of the carbon ring 20 onto the rotating shaft 30. At this time, the positioning structure 11 can abut against the shoulder A of the rotating shaft 30 to achieve axial positioning of the disassembly and assembly tool.

[0047] S104: Apply counterclockwise rotational force to the first nut 131 and the second nut 132 respectively, so that the first lead screw 121 and the second lead screw 122 retract synchronously to disengage from the two threaded holes on the carbon ring 20, and then move the disassembly and assembly tool away from the carbon ring 20 to complete the removal of the disassembly and assembly tool. At this time, the installation process of the carbon ring 20 is completed.

[0048] When disassembling the carbon ring 20 mounted on the rotating shaft 30, one possible procedure for using this tool is as follows:

[0049] S201: The disassembly and assembly tool is sleeved on the rotating shaft 30 through the first positioning hole 111, and pushed along the axial direction of the first positioning hole 111 to the position where the positioning structure 11 abuts against the shoulder A of the rotating shaft 30, so that the positioning structure 11 is fixed in both the radial and axial directions relative to the rotating shaft 30, and the shoulder A serves as a reaction force support.

[0050] S202: Align the first lead screw 121 and the second lead screw 122 with the two opposite threaded holes on the carbon ring 20, and then apply a clockwise rotational force to the first nut 131 and the second nut 132 respectively, driving the first lead screw 121 and the second lead screw 122 to be screwed into the two opposite threaded holes on the carbon ring 20 respectively.

[0051] S203: Removing the disassembly and assembly tool can cause the carbon ring 20 to disengage from the rotating shaft 30, thus ending the disassembly process of the carbon ring 20.

[0052] In this embodiment, the tool 10 for disassembling and assembling the carbon ring may include: a positioning structure 11, a connecting structure 12, and a driving structure 13. The positioning structure 11 is provided with a first positioning hole 111 and a plurality of second positioning holes 112 arranged in pairs around the first positioning hole 111. The first positioning hole 111 is used to fit the rotating shaft 30 and to position it radially relative to the rotating shaft 30. The first lead screw 121 and the second lead screw 122 of the connecting structure 12 can be screwed into the paired second positioning holes 112 respectively, and screwed into two opposing threaded holes on the carbon ring 20. The first nut 131 and the second lead screw 122 of the driving structure 13 are respectively screwed into the paired second positioning holes 112. Nuts 132 are respectively disposed on the first lead screw 121 and the second lead screw 122. By applying rotational force to the first nut 131 and the second nut 132, the first lead screw 121 and the second lead screw 122 are driven to rotate, thereby achieving connection or disconnection with the carbon ring 20. After connecting with the carbon ring 20 to be assembled, the carbon ring 20 can be installed by fitting the rotating shaft 30 and further disconnecting it from the carbon ring 20. After fitting the rotating shaft 30 and connecting with the carbon ring 20 on the rotating shaft 30, the carbon ring 20 can be disassembled by removing the disassembly and assembly tools to remove the connected carbon ring 20. Here, during the installation and disassembly of the carbon ring 20, the positioning structure 11 is fitted onto the rotating shaft 30 and positioned radially relative to the rotating shaft 30, which reduces the probability of the disassembly and assembly tools becoming misaligned, thereby reducing the need for repeated adjustments of the disassembly and assembly tools during the disassembly and assembly process, thus saving the time required for disassembly and assembly; at the same time, the connecting structure 12 uses the relatively arranged first lead screw 121 and second lead screw 122 to connect with the threaded hole of the carbon ring 20 to ensure uniform force distribution; the first nut 131 and second nut 132 of the driving structure 13 realize the controllable axial movement of the first lead screw 121 and the second lead screw 122 through rotation, which is simple to operate, labor-saving and efficient.

[0053] In some embodiments, see Figures 1 to 5 and Figure 7 , Figure 8 The positioning structure 11 may include: a first positioning element 113 and a second positioning element 114; the first positioning element 113 is annular, with a first positioning hole 111 formed at its center; the second positioning element 114 is sleeved on the first positioning element 113 and is positioned relative to the first positioning element 113 along the sleeved direction (e.g., ...). Figure 1 , Figure 5 The X direction is fixed, and the second positioning member 114 is provided with a second positioning hole 112.

[0054] The first positioning element 113 is annular in shape, with a central hole that is the first positioning hole 111. It is used to fit onto the rotating shaft 30 to achieve radial positioning of the positioning structure 11 and the rotating shaft 30. When the first positioning element 113 is fitted onto the rotating shaft 30, the peripheral surface of the first positioning element 113 corresponding to the first positioning hole 111 can abut against the shoulder A of the rotating shaft 30 to achieve axial positioning of the first positioning element 113 and the rotating shaft 30.

[0055] The second positioning member 114 is sleeved on the outer periphery of the first positioning member 113. Through bonding, interference fit, or other means, the second positioning member 114 is fixed relative to the first positioning member 113 at least in the sleeve direction after the two are sleeved. That is, after the second positioning member 114 is sleeved on the first positioning member 113, it can maintain a constant relative positional relationship with the first positioning member 113 even when the second positioning member 114 continues to be subjected to a force along the sleeve direction. The sleeve direction of the second positioning member 114 and the first positioning member 113 is consistent with the sleeve direction of the positioning structure 11 and the rotation axis 30.

[0056] In this embodiment, the positioning structure 11 is configured as a split type. The first positioning member 113 is provided with a first positioning hole 111 for fitting the rotating shaft 30, so as to cooperate with the rotating shaft 30 to achieve radial positioning. The second positioning member 114 is provided with a second positioning hole 112 for connecting the first lead screw 121 and the second lead screw 122. After the second positioning member 114 and the first positioning member 113 are connected as a whole, the second positioning member 114 is fixed relative to the first positioning member 113 in the fitting direction, so as to realize the modular manufacturing of the positioning structure 11, which is convenient for processing and maintenance, and does not affect the positioning function of the positioning structure 11.

[0057] In some embodiments, see Figure 4 and Figure 5 The first positioning member 113 has a first segment 1131 and a second segment 1132 distributed in a direction opposite to the sleeve direction. The outer peripheral dimension of the first segment 1131 is larger than that of the second segment 1132, so that the peripheral side of the first positioning member 113 has a stepped surface 1133. When the second positioning member 114 is sleeved on the first positioning member 113 in the sleeve direction, it abuts against the stepped surface 1133.

[0058] By setting a first segment 1131 and a second segment 1132 with different circumferential dimensions on the first positioning member 113, a stepped surface 1133 is formed. When the second positioning member 114 is fitted onto the first positioning member 113 in the fitting direction, it is connected to the stepped surface 1133. The stepped surface 1133 can serve as a limiting surface for the second positioning member 114 in the fitting direction, thereby conveniently realizing the rapid installation of the first positioning member 113 and the second positioning member 114 and their relative fixation in the fitting direction.

[0059] Here, the second positioning member 114 can be connected to the step surface 1133 by means of bonding, adsorption or other methods, so as to improve the relative fixation effect between the second positioning member 114 and the first positioning member 113.

[0060] In some embodiments, see Figures 1 to 5 , Figure 7 , Figure 8 The second positioning member 114 can be displaced in the opposite direction to the sleeve direction to separate from the first positioning member 113.

[0061] In other words, the second positioning element 114 can be connected to the first positioning element 113 by sleeve, so as to fix the second positioning element 114 relative to the first positioning element 113 in the sleeve direction and form a positioning structure 11. Alternatively, the second positioning element 114 can be moved relative to the first positioning element 113 to detach from the first positioning element 113, thereby facilitating the disassembly of the first positioning element 113 and the second positioning element 114. This is beneficial for modular maintenance. It also allows the first positioning element 113 and the second positioning element 114 to be manufactured with different materials and processes while ensuring positioning accuracy, thereby optimizing costs and extending the service life of the tool. At the same time, the separation of the two elements allows for the replacement of either the first positioning element 113 or the second positioning element 114 to adjust the size of the first positioning hole 111, the distance between the first positioning hole 111 and the second positioning hole 112, etc., thereby adapting to carbon rings 20 and rotating shafts 30 of different specifications.

[0062] The rotating shaft 30 may include a first radial segment and a second radial segment. The diameter of the first radial segment is larger than the diameter of the second radial segment, forming a shoulder A between the first and second radial segments. The diameter of the first positioning hole 111 of the first positioning member 113 can be adapted to the second radial segment, so that when the first positioning hole 111 of the first positioning member 113 is fitted onto the rotating shaft 30, it is fitted onto the second radial segment and abuts against the shoulder A, thereby achieving axial and radial positioning relative to the rotating shaft 30. The diameter of the fitting hole 1144 on the second positioning member 114, which fits onto the first positioning member 113, can be adapted to the first radial segment. Thus, during the disassembly of the carbon ring 20, the aforementioned disassembly method can be used, or the first positioning member 113 can be removed, and the second positioning member 114 can be fitted onto the second radial segment for operation. Figure 8 As shown, it can provide a variety of disassembly operations.

[0063] In some embodiments, the first positioning member 113 is provided with a first magnetic attraction member; the second positioning member 114 is provided with a second magnetic attraction member; when the second positioning member 114 is sleeved on the first positioning member 113 along the sleeve direction, the first magnetic attraction member and the second magnetic attraction member have mutual attraction force. In this way, the first positioning member 113 and the second positioning member 114 can be relatively fixed to achieve the integrity and integration of the two.

[0064] In some embodiments, the outer periphery of the first positioning member 113 is provided with at least one protrusion extending in the sleeve direction, and the second positioning member 114 is provided with a groove adapted to the protrusion. When the second positioning member 114 is sleeved on the first positioning member 113 in the sleeve direction, the protrusion is located in the groove and abuts against the inner sidewall and inner bottom wall of the groove.

[0065] Here, during the process of the second positioning member 114 being fitted onto the first positioning member 113, the groove on the second positioning member 114 can slide along the convex strip, making the connection process between the second positioning member 114 and the first positioning member 113 smoother. Furthermore, since the convex strip is located within the groove and abuts against the inner sidewall and bottom wall of the groove when the second positioning member 114 is fitted onto the first positioning member 113 along the fitting direction, the convex strip and the groove cooperate to form a limiting force during relative rotation between the first positioning member 113 and the second positioning member 114, thereby reducing the impact of the relative rotation of the second positioning member 114 and the first positioning member 113 on the installation and disassembly processes of the carbon ring 20.

[0066] In some embodiments, see Figure 4 and Figure 5 The surface of the first segment 1131 facing away from the second segment 1132 is a smooth surface. This reduces the chance of leaving scratches on the shoulder A during the process of the first segment 1131 abutting against the shoulder A.

[0067] In some embodiments, see Figure 6 The second positioning component 114 includes a first part 1141 and a second part 1142, both of which are arc-shaped. The first part 1141 and the second part 1142 are detachably connected, and after the first part 1141 and the second part 1142 are connected, they cooperate to form a fitting hole 1144 for fitting the first positioning component 113. In other words, the second positioning component 114 is designed as a separate unit, but in use it forms a whole. This allows for modular manufacturing of the second positioning component 114, simplifying the manufacturing process and reducing manufacturing difficulty.

[0068] In some embodiments, see Figure 6The first part 1141 and the second part 1142 are connected by screws 1143; or, the first part 1141 and the second part 1142 are connected by adsorption. Whether connected by screws 1143 or by adsorption, the first part 1141 and the second part 1142 can be connected and disassembled, and both methods are simple and convenient.

[0069] In some embodiments, the two ends of the first portion 1141 and the two ends of the second portion 1142 form two mating positions; the second positioning member 114 may further include: a plurality of gaskets, with gaskets of the same thickness sandwiched at the two mating positions respectively.

[0070] One end of the arc-shaped first part 1141 and one end of the arc-shaped second part 1142 are joined to form a mating position. The other end of the arc-shaped first part 1141 and the other end of the arc-shaped second part 1142 are joined to form another mating position. Thus, two mating positions are formed, which, after mating, form the second positioning element 114. Before mating, an equal number of shims can be clamped at each of the two mating positions to fine-tune the distance between the second positioning hole 112 and the first positioning hole 111 on the second positioning element 114, thereby accommodating carbon rings 20 of different specifications or to accommodate manufacturing errors of different carbon rings 20.

[0071] Here, the shim is thin so that the second positioning member 114 can be fixed relative to the first positioning member 113 after being fitted onto the first positioning member 113; or, in order to reduce the gap between the second positioning member 114 and the first positioning member 113 after the shim is added, the inner wall of the fitting hole 1144 of the second positioning member 114 fitted onto the first positioning member 113 can be provided with an elastic layer such as rubber or silicone, so that the compression amount without the shim is greater than the compression amount with the shim, thereby reducing the probability of a gap between the second positioning member 114 and the first positioning member 113 after they are fitted onto the first positioning member 113.

[0072] The embodiments of this disclosure have now been described in detail. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0073] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner.

Claims

1. A tool for disassembling and assembling carbon rings, characterized in that, include: The positioning structure has a first positioning hole and a plurality of second positioning holes, wherein the plurality of second positioning holes are arranged on the periphery of the first positioning hole and are opposite to each other in pairs; The connecting structure includes: a first lead screw and a second lead screw, wherein the first lead screw is rotatably screwed into a second positioning hole, and the second lead screw is rotatably screwed into another second positioning hole, and the first lead screw, the first positioning hole and the second lead screw are distributed along a straight line; The driving structure includes a first nut and a second nut. The first nut is sleeved on the first lead screw and is connected to the external thread on the first lead screw. The second nut is sleeved on the second lead screw and is connected to the external thread on the second lead screw. The first nut and the second nut are located on the same side of the positioning structure.

2. The tool for disassembling and assembling carbon rings according to claim 1, characterized in that, The positioning structure includes: a first positioning element and a second positioning element; The first positioning element is annular, and its central hole forms the first positioning hole; The second positioning member is sleeved on the first positioning member and fixed relative to the first positioning member along the sleeved direction, and the second positioning member is provided with the second positioning hole.

3. The tool for disassembling and assembling carbon rings according to claim 2, characterized in that, The first positioning member has a first segment and a second segment distributed in a direction opposite to the sleeve direction. The outer peripheral dimension of the first segment is larger than that of the second segment, so that the peripheral side of the first positioning member has a stepped surface. When the second positioning member is fitted onto the first positioning member along the fitting direction, it abuts against the step surface.

4. The tool for disassembling and assembling carbon rings according to claim 3, characterized in that, The second positioning member can be displaced in a direction opposite to the sleeve direction to separate from the first positioning member.

5. The tool for disassembling and assembling carbon rings according to claim 4, characterized in that, The first positioning member is provided with a first magnetic attraction member; The second positioning element is provided with a second magnetic attraction element; When the second positioning member is sleeved on the first positioning member along the sleeve direction, the first magnetic member and the second magnetic member have mutual attraction force.

6. The tool for disassembling and assembling carbon rings according to claim 4, characterized in that, The first positioning member has at least one protrusion extending along the sleeve direction on its outer periphery. The second positioning member has a groove adapted to the protrusion. When the second positioning member is sleeved on the first positioning member along the sleeve direction, the protrusion is located in the groove and abuts against the inner sidewall and inner bottom wall of the groove.

7. The tool for disassembling and assembling carbon rings according to claim 3, characterized in that, The surface of the first segment facing away from the second segment along the sleeve direction is a smooth surface.

8. The tool for disassembling and assembling carbon rings according to claim 4, characterized in that, The second positioning element includes a first part and a second part, both of which are arc-shaped. The first part and the second part are detachably connected, and after the first part and the second part are connected, the first part and the second part cooperate to form a fitting hole for fitting the first positioning element.

9. The tool for disassembling and assembling carbon rings according to claim 8, characterized in that, The first part and the second part are connected by screws; or, The first part and the second part are connected by adsorption.

10. The tool for disassembling and assembling carbon rings according to claim 8, characterized in that, The two ends of the first part and the two ends of the second part form two docking positions; The second positioning component also includes: multiple gaskets, with gaskets of the same thickness clamped at the two mating positions.

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