CN215617799U - Disassembling tool - Google Patents

Abstract

The utility model provides a disassembling tool which is used for improving the situation that a sealing ring is difficult to disassemble and apply force. According to an embodiment of the utility model, a disassembly tool for disassembling a first ring member and a second ring member, the first ring member and the second ring member forming an interference fit, the disassembly tool comprises: a force application part for obtaining a decomposition force; the supporting part is arranged on the radial first side of the lower end of the force application part and is provided with a supporting part positioning surface; the lifting part is arranged on the radial second side of the lower end of the force application part, forms an accommodating groove with the supporting part and is used for receiving the first annular part, and is provided with a lifting part positioning surface and an inner hook platform; and a radial stop device; the disassembling tool is positioned on the first annular piece through the supporting part positioning surface to obtain axial positioning, positioned on the first annular piece through the lifting part positioning surface to obtain radial positioning, connected with the first annular piece through the radial limiting device to obtain radial limiting, and clamped with the annular table of the first annular piece through the inner hook table to obtain axial limiting.

Description

Disassembling tool

Technical Field

The utility model relates to a decomposition tool, in particular to a decomposition tool for an interference annular piece, and particularly relates to a decomposition tool for a sealing ring for supporting an inner cavity of a conical wall.

Background

The sealing ring is an important part for ensuring the sealing performance of the aero-engine and is also an important component of an engine rotor, and in order to ensure the assembly quality and the assembly repeatability of the rotor, the sealing ring is usually installed in a structural form of interference spigot fit and bolt connection, for example, the sealing ring in an inner cavity of a supporting conical wall of a low-pressure turbine rotor is in interference fit with the supporting conical wall at the side part to form an interference fit section.

Methods of assembly and disassembly of the interference fit include temperature differential methods, press pressing methods, hammering methods, and combinations thereof. Because the operation space in the inner cavity of the supporting conical wall is limited, the temperature difference method and the pressing method of the press machine are complex in process and high in cost when the support is decomposed, the force application is difficult when the hammering method is used, and the decomposition difficulty is large.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a disassembling tool for improving the situation that force is difficult to apply when a sealing ring is disassembled.

According to an embodiment of the present invention, the disassembling tool is used for disassembling a first ring member and a second ring member, the first ring member and the second ring member form an interference fit, and the disassembling tool is provided with a force application portion, a support portion, a pulling portion, and a radial limiting device. The force application part is used for obtaining a decomposition force; the support part is arranged on the radial first side of the lower end of the force application part and is provided with a support part positioning surface; the lifting part is arranged on the radial second side of the lower end of the force application part, forms an accommodating groove with the supporting part and is used for receiving the first annular part, and the lifting part is provided with a lifting part positioning surface and an inner hook platform. The disassembling tool is positioned on the first annular piece through the supporting part positioning surface to obtain axial positioning, positioned on the first annular piece through the lifting part positioning surface to obtain radial positioning, connected with the first annular piece through the radial limiting device to obtain radial limiting, and clamped with the annular table of the first annular piece through the inner hook table to obtain axial limiting.

In one or more embodiments, the first ring member has a vertical portion, a horizontal portion, and a connecting wall connecting the vertical portion and the horizontal portion, and the disassembling tool is configured to: after the vertical part of the first annular part is received by the accommodating groove, the disassembling tool can slide on the connecting wall through the guide of the supporting part, and enters a state that the positioning surface of the supporting part is positioned on the first annular part, and simultaneously enters a state that the positioning surface of the lifting part is positioned on the first annular part and a state that the inner hook platform is clamped with the first annular part.

In one or more embodiments, the force application portion includes a moving member and a force application member, the moving member is configured to be driven to impact the force application member, the force application member further transmits an impact force to the lifting portion, and a resolution force is provided by a mutually engaged position of the inner hook stage and the annular stage.

In one or more embodiments, the force applying member includes a slide rail, the slide rail is arranged along the axial direction, and the bottom of the slide rail is tightly connected with the lifting part and the supporting part;

the force application part further comprises a baffle ring, and the baffle ring is arranged at the top of the slide way, is fixedly connected with the top of the slide way and is used for bearing the impact force of the moving part.

In one or more embodiments, the moving member includes a slide hammer that is drivable to slide along the slide to impact the retainer ring.

In one or more embodiments, the support part comprises an outward-extending table protruding from the disassembling tool along a radial side, and the support part positioning surface is a bottom surface of the outward-extending table;

the first annular part is provided with a vertical part, a horizontal part and a connecting wall for connecting the vertical part and the horizontal part, and the top surface of the horizontal part provides a first positioning surface;

the first locating surface axially supports the support locating surface to enable the axial location of the break-up tool.

In one or more embodiments, the first ring member has a vertical portion, a horizontal portion, and a connecting wall connecting the vertical portion and the horizontal portion;

the inner hook platform protrudes inwards from the containing groove along the radial direction, the positioning surface of the lifting part is a radial side cylindrical surface of the inner hook platform, the radial side cylindrical surface of the vertical part provides a second positioning surface, and the second positioning surface supports against the radial side cylindrical surface of the inner hook platform in the radial direction so that the decomposing tool can be positioned in the radial direction.

In one or more embodiments, the top surface of said inner hooking abutment is engaged with the bottom surface of the annular abutment of said first annular element to obtain said axial stop of the disassembly tool, in the case of said engagement, said inner hooking abutment being able to hook said annular abutment for the extraction.

In one or more embodiments, the radial limiting means includes a limiting member and a limiting hole provided by the supporting portion, the limiting hole is aligned with the connecting hole of the first ring member in a state where the disassembly tool achieves the axial positioning and the radial positioning, and the limiting member is inserted into the limiting hole and the connecting hole to limit the radial movement of the disassembly tool.

In one or more embodiments, the support portion is only partially in contact with the first ring member in the circumferential direction, and the pull portion is only partially in contact with the first ring member in the circumferential direction.

In one or more embodiments, the first ring member is a packing ring and the second ring member is a supporting cone wall.

The embodiment of the utility model has the following beneficial effects:

1. through the arrangement of the supporting part positioning surface for axial positioning and the lifting part positioning surface for radial positioning, orthogonal positioning of the decomposition tool relative to the first annular piece is realized, so that the decomposition tool can conveniently and quickly enter a decomposition position;

2. the rapid fixing of the decomposing tool on the decomposing position and the stable connection with the first annular element are realized by arranging the radial limiting device for radial limiting and the inner hook platform for axial limiting;

3. by arranging the radial limiting device for radial limiting, the drawing direction of the first annular piece is limited to be axial under the condition that the first annular piece is drawn by the disassembling tool, and the damage to the first annular piece and the second annular piece in the disassembling process is reduced;

4. through quick location, spacing of realizing decomposing the relative first annular member of instrument for the decomposing instrument can conveniently get into fast and decompose the position and fix fast and with first annular member stable connection, makes the application of force convenience that first annular member decomposed.

Drawings

The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which:

FIG. 1 is a schematic view of the installation of a first ring member;

FIG. 2 is a schematic view of the installation of a first ring member;

FIG. 3 is a schematic view of the installation of the break-away tool;

FIG. 4 is a schematic view of the installation of the break-away tool;

FIG. 5 is a schematic view of the installation of the break-away tool;

FIG. 6 is a schematic structural view of the decomposition tool;

fig. 7 is a schematic view of the structure of the disassembly tool.

Detailed Description

As shown in fig. 1, the first ring member 1 is a sealing ring 1, the second ring member 2 is a supporting conical wall 2, and the first ring member 1 is installed in an inner cavity of the second ring member 2. The terms of orientation "radial", "axial", "inside", "outside" and the like refer to the first annular element 1 and the second annular element 2 assembled together, while the terms of orientation "lower", "upper" and the like refer to the embodiments as shown in the figures. Furthermore, as used herein, the terms "first," "second," and the like may be used interchangeably to distinguish one element from another, and are not intended to imply that the various elements must be in the positions shown in the figures in various embodiments. Fig. 2 shows a partial radial cross section of the first ring member 1 mounted in the inner cavity of the second ring member 2, and it can be seen that the partial radial cross section of the first ring member 1 is U-like, and has a vertical portion 3, a horizontal portion 4, and a connecting wall 5 connecting the vertical portion 3 and the horizontal portion 4, and an annular table 6 having a rectangular-like cross section is provided on the side wall of the vertical portion 3.

It can also be seen in fig. 2 that the second annular member 2 is, in a partial radial section, V-like in shape, having a second horizontal portion 8 and a second connecting wall 9, the second connecting wall 9 being provided, close to the second horizontal portion 8, with a boss 10 which is triangular-like in cross-sectional shape.

Also as can be seen in fig. 2, in the case where the first ring member 1 is mounted to the second ring member 2, the U-like first ring member 1 is mounted to the bottom of the V-like second ring member 2 with the U-like opening of the first ring member 1 facing the V-like opening of the second ring member 2, and the vertical portion 3 of the first ring member 1 is fitted at the lower portion thereof to the triangular-like projection 10 of the second ring member 2 by interference fit, forming an interference fit section. Meanwhile, the horizontal part 4 of the first ring-shaped member 1 is attached to the second horizontal part 8 of the second ring-shaped member 2 to form a bottom attachment section, and the bottom attachment section is connected by bolts, so that the horizontal parts 4 and 8 of the first and second ring- shaped members 1 and 2 are provided with threaded holes, and the positions and the sizes of the threaded holes are adapted to each other. In addition, the bottom attaching section and the interference fit section are not adjacent, but intersect with each other in a normal line.

As shown in fig. 6 and 7, the disassembling tool includes a support portion 7, an urging portion 11, a pulling portion 12, and a radial stopper 13.

As shown in fig. 6 and 7, the support portion 7 is disposed radially outside the lower end of the biasing portion 11, the support portion 7 includes an overhanging table 14, the overhanging table 14 protrudes radially outward from the disassembling tool, the overhanging table 14 has a support portion positioning surface 15, and the support portion positioning surface 15 is a bottom surface of the overhanging table 14 and is used for positioning a first positioning surface 16 of the horizontal portion 4 of the first ring-shaped member 1 so as to axially position the disassembling tool. As shown in fig. 3 and 4, the top surface of the horizontal portion 4 provides a first positioning surface 16, the first positioning surface 16 supports the support portion positioning surface 15 in the axial direction to allow the disassembly tool to obtain axial positioning, and the bottom surface of the outrigger 14 and the first positioning surface 16 are both flat.

In this embodiment, the supporting portion 7 is disposed at the lower end of the force application portion 11 to facilitate the user of the disassembling tool to apply the disassembling tool to the first ring member 1 from top to bottom, the supporting portion 7 is disposed at the radial outer side of the force application portion 11 to enable the disassembling tool to conveniently cross the vertical portion 3 of the first ring member 1 to reach the horizontal portion 4, and the supporting portion positioning surface 15 is disposed to enable the user of the disassembling tool to conveniently position the supporting portion positioning surface 15 on the horizontal portion 4 of the first ring member 1 to achieve quick positioning of the disassembling tool in the axial direction. It should be understood that the location and structure of the supporting portion 7 are mainly designed in consideration of how to achieve the convenient and fast positioning of the disassembling tool relative to the first annular member 1 in the axial direction, and from the perspective of the convenient and fast positioning in the axial direction, the location and structure of the supporting portion 7 may be changed by the shape, structure, location relationship, installation condition, and other factors of the first annular member 1 and the second annular member 2, for example, in another embodiment, the supporting portion 7 may be located on the radial inner side of the force applying portion 11 along with the change of the shape and structure of the first annular member 1, but it should be understood that as long as the supporting portion 7 is located on the radial side of the lower end of the force applying portion 11 and has the supporting portion positioning surface 15, the problem of the difficulty in the axial positioning of the disassembling tool can be solved, and the effect of the fast positioning of the disassembling tool in the axial direction can be achieved.

The protruding platform 14 protruding from the disassembly tool facilitates the user of the disassembly tool to manipulate the radial stop 13, and in this embodiment the protruding platform 14 protrudes radially outward, it being understood that in another embodiment, the protruding platform 14 may also protrude radially inward as the shape and configuration of the first ring 1 changes, from an angle that facilitates the positioning of the bottom surface of the protruding platform on the first ring 1. In this embodiment, the top surface of the first horizontal ring member 4 is selected to provide the first positioning surface 16 to conveniently support the bottom surface of the extending table, and in another embodiment, the first positioning surface 16 may be selected according to the shape and structure of the first ring member 1, and other surfaces may be selected from the perspective of conveniently positioning the extending table 14 on the first ring member 1. The plane arrangement of the bottom surface of the overhanging table and the first positioning surface 16 enables the first positioning surface 16 to be more stable when providing axial support for the bottom surface of the overhanging table, and facilitates the axial positioning of the disassembling tool.

As shown in fig. 6 and 7, the pulling portion 12 is provided radially inside the lower end of the biasing portion 11, and forms a receiving groove 25 with the support portion 7, as shown in fig. 4, the receiving groove 25 is adapted to receive the vertical portion 3 of the first ring member 1, the pull portion 12 has a pull portion positioning surface 17 and an inner catch projection 18, the inner catch projection 18 projects radially outwardly into the receiving groove 25, the pull portion positioning surface 17 is a radially outwardly facing cylindrical surface of the inner catch projection 18, for positioning in the vertical portion 3 of the first annular element 1 to obtain radial positioning, as shown in fig. 4, the radially inner cylindrical surface of the vertical portion 3 of the first annular element 1 provides a second positioning surface 19, which second positioning surface 19 radially abuts against the radially outer cylindrical surface of the inner hooking abutment 18 to obtain radial positioning of the dissolution tool, preferably the radially outer cylindrical surface of the inner hooking abutment 18 has the same curvature as the radially inner cylindrical surface of the vertical portion 3. The top surface of the inner hooking platform 18 is engaged with the bottom surface of the annular platform 6 of the first annular element 1 to axially limit the disassembly tool, and in the case of engagement, the inner hooking platform 18 can hook the annular platform 6 for lifting.

In this embodiment, the pulling portion 12 is disposed at the lower end of the force application portion 11 to facilitate the user of the disassembling tool to lift the first ring-shaped member 1 from bottom to top, the pulling portion 12 is disposed at the radially inner side of the force application portion 11 to form the receiving groove 25 together with the supporting portion 7, and the disassembling tool can conveniently straddle and receive the vertical portion 3 of the first ring-shaped member 1, the positioning surface 17 of the pulling portion is disposed to enable the user of the disassembling tool to conveniently position the positioning surface 17 of the pulling portion at the vertical portion 3 of the first ring-shaped member 1 to complete the rapid positioning of the disassembling tool in the radial direction, and the inner hook platform 18 is disposed to enable the user of the disassembling tool to conveniently clamp the annular platform 6 of the first ring-shaped member 1 to complete the rapid position limitation of the disassembling tool in the axial direction and facilitate the pulling. It should be understood that the position and structure of the pulling portion 12 are mainly designed in consideration of how to achieve convenient and quick positioning of the disassembling tool with respect to the first ring member 1 in the radial direction, how to achieve convenient and quick limiting of the disassembling tool with respect to the first ring member 1 in the axial direction, and how to achieve convenient lifting of the disassembling tool with respect to the first ring member 1, and from the above-mentioned points, the shape, configuration, positional relationship, and installation conditions of the first and second ring members 1 and 2 all cause the position and structural arrangement of the pulling portion 12 to change, for example, in another embodiment, the pulling portion 12 may be located radially outside the force application portion 11 as the shape and structure of the first ring member 1 change, but it should be understood that the radial positioning of the disassembling tool can be solved as long as the pulling portion 12 is located radially on one side of the lower end of the force application portion 11 to form the receiving groove 25 with the support portion 7, and the pulling portion 12 has the positioning surface 17 and the inner catch 18 for the pulling portion, The problem of spacing and application of force difficulty of axial for the decomposition tool can conveniently fix a position fast in footpath, just spacing fast and conveniently drawing in the axial, and then realizes that the decomposition tool conveniently gets into the effect that decomposes position, quick fixed and with first loop forming element 1 stable connection on decomposing the position fast.

In the present embodiment, the inner hook platform 18 protrudes radially outward, and the lifting portion positioning surface 17 is a radially outward cylindrical surface of the inner hook platform 18, which can facilitate a user of the disassembling tool to insert the inner hook platform 18 under the annular platform 6 of the first annular member 1 and abut against the first annular member 1 in a radial direction to quickly complete the radial positioning of the disassembling tool, it should be understood that, in another embodiment, along with the change of the shape and the configuration of the first annular member 1, from an angle that facilitates the positioning of the inner hook platform 18 on the first annular member 1, the inner hook platform 18 may also protrude radially inward, and the lifting portion positioning surface 17 may also be selected as a radially inward cylindrical surface of the inner hook platform 18. Furthermore, in the present embodiment, the choice of the radially internal cylindrical surface of the vertical portion 3 of the first annular element 1 to provide the second locating surface 19 allows a convenient abutment against the radially external cylindrical surface of the internal hooking abutment 18, it being understood that, in another embodiment, this second locating surface 19 can also be chosen, according to variations in the shape and configuration of the first annular element 1, from a point of view of facilitating the positioning of the internal hooking abutment 18 on the first annular element 1, from other points of view. The curvature of the radially outer cylindrical surface of the inner hook table 18 is the same as the curvature of the radially inner cylindrical surface of the vertical part 3, so that the lifting part positioning surface 17 of the inner hook table 18 can be attached to the second positioning surface 19 of the vertical part 3 when the disassembling tool is positioned radially, the radial abutting is more stable, and the radial positioning of the disassembling tool is facilitated.

In this embodiment, the top surface of the inner hooking abutment 18 engages with the bottom surface of the annular abutment 6 of the first annular element 1 to allow the tool to quickly obtain axial retention, it being understood that in another embodiment, the engagement surfaces may be chosen according to the variation of the shape and configuration of the first annular element 1, and that other surfaces may be chosen from a view point of facilitating axial retention of the inner hooking abutment 18 with respect to the first annular element 1. Furthermore, in the present embodiment, the inner hooking platform 18 hooks the annular platform 6 for lifting, which is selected according to the shape and structure of the inner hooking platform 18 and the annular platform 6, and this arrangement facilitates the user of the disassembling tool to lift the first annular member 1.

As shown in fig. 6 and 7, the pulling part 12 is tightly connected with the top of the supporting part 7, or preferably, the pulling part 12 is integrally formed with the top of the supporting part 7 to ensure the strength of the disassembling tool. The top of the lifting part 12 and the supporting part 7 is provided with a flange platform, and the flange platform is provided with a through hole for installing the force application part 11.

As shown in fig. 6 and 7, the force application portion 11 includes a slide way 20, a blocking ring 21 and a sliding hammer 22, the blocking ring 21 and the sliding hammer 22 are both annular members, the slide way 20 is axially disposed, the bottom of the slide way 20 is inserted into through holes on flange platforms at the top of the lifting portion 12 and the supporting portion 7, and is tightly connected with the top of the lifting portion 12 and the top of the supporting portion 7, the bottom of the slide way 20 is further provided with a fixing ring 26 for blocking the sliding hammer 22 from moving downward along the axial direction, and for this purpose, the upper surface of the fixing ring 26 is an annular plane protruding from the slide way 20; the baffle ring 21 is arranged at the top of the slideway 20 and used for blocking the upward movement of the sliding hammer 22 along the axial direction and bearing the impact force of the sliding hammer 22, therefore, the bottom surface of the baffle ring 21 is an annular plane protruding out of the slideway 20, the baffle ring 21 is provided with a through hole, the top of the slideway 20 is inserted into the through hole, and the baffle ring 21 is tightly connected with the top of the slideway 20; the sliding hammer 22 is a cylinder, the center of the sliding hammer is provided with a through hole with a size corresponding to that of the slide way 20, the through hole is matched with the slide way 20, so that the sliding hammer 22 can slide up and down along the slide way 20 under driving, the blocking ring 21 is impacted, the blocking ring 21 transmits impact force to the lifting part 12, and the lifting part 12 transmits the force to the first annular part 1 for decomposition.

In the present embodiment, the moving member for generating the impact is the sliding weight 22, the force applying member for transmitting the impact is the slideway 20 and the retaining ring 21, the force applying portion 11 is configured in such a way that the structure of the force applying portion 11 is simple, the user of the disassembling tool can generate and transmit the required disassembling force by directly pulling the sliding weight 22 to strike the retaining ring 21 with hands, and the operation is convenient, it should be understood that the selection and the arrangement of the moving member and the force applying member are not limited to this, for example, in another embodiment, the moving member driven by mechanical force or hydraulic force or pneumatic force can be selected to impact the force applying member to obtain the disassembling force, such as a pneumatic vibration weight or a hydraulic impactor, and then the disassembling force is provided by the clamping position of the inner hook platform 18 and the annular platform 6, further, as long as the force applying portion 11 capable of obtaining the required disassembling force can solve the problem of providing the disassembling force for the first annular member 1 and the second annular member 2, achieving the corresponding technical effect.

As shown in fig. 6 and 7, the radial limiting device 13 comprises a limiting pin 23 and a limiting hole 24 provided in the supporting part 7, wherein the limiting hole 24 is a circular through hole and is arranged on the outward extending platform 14 of the supporting part 7, the size of the limiting hole 24 is matched with the size of the threaded holes of the first ring-shaped member 1 and the second ring-shaped member 2, as shown in fig. 3 and 4, in the case that the disassembling tool is axially positioned and radially positioned into the disassembling position, the limiting hole 24 of the supporting part 7 is aligned with the threaded holes of the first ring-shaped member 1 and the second ring-shaped member 2, and the limiting pin 23 can be inserted into the limiting hole 24 and the two threaded holes to limit the radial movement of the disassembling tool.

The limiting hole 24 and the limiting pin 23 disposed on the overhanging stage 14 enable a user of the disassembling tool to conveniently observe the accurate positioning of the disassembling tool at the disassembling position through the alignment of the limiting hole 24 and the threaded hole, and simultaneously facilitate the user to operate the radial limiting device 13, the user only needs to directly insert or pull out the limiting pin 23, in addition, the radial limiting device 13 also has the function of guiding the pulling direction, and can limit the pulling direction of the disassembling tool to the axial direction, so as to realize the axial pulling of the first annular part 1, which can reduce the damage to the first annular part 1 and the second annular part 2 during the disassembling process, it should be noted that the shape structure of the radial limiting device 13 is not limited thereto, for example, in another embodiment, the limiting pin 23 can also be replaced by a limiting bolt, and the limiting hole 24 and the two threaded holes are connected through the limiting bolt to limit the radial movement, further, as long as can realize that the decomposition instrument connects first annular member 1 and can both solve the radial spacing problem of decomposition instrument in order to carry out radial spacing radial stop device 13 for it is radially convenient spacing that the decomposition instrument can be followed footpath, and then realizes the effect that the quick fixed of decomposition instrument on the decomposition position and with first annular member 1 stable connection.

As shown in fig. 3, in the present embodiment, in the circumferential direction, the supporting portion 7 of the disassembling tool is only partially contacted with the horizontal portion 4 of the first ring-shaped member 1, and the pulling portion 12 is only partially contacted with the annular table 6 of the first ring-shaped member 1, specifically, the working area of the disassembling tool is small relative to the central angle occupied by the first ring-shaped member 1, the user only needs to put the disassembling tool into the target disassembling section of the first ring-shaped member 1 for multiple times, the disassembling of multiple sections can be completed for multiple times to disassemble the complete first ring-shaped member 1, the size and volume of the disassembling tool are greatly reduced, the difficulty of positioning and limiting the disassembling tool is reduced, and the operation is convenient.

The use of the decomposition tool is described below in conjunction with fig. 5:

placing the disassembling tool on the upper end of the vertical part 3 of the first ring-shaped member 1, moving the disassembling tool axially downward so that the vertical part 3 gradually enters the receiving groove 25, and moving the disassembling tool radially inward while moving the disassembling tool axially downward so that the inner hook table 18 avoids the annular table 6 of the first ring-shaped member 1 and enters a space below the annular table 6;

after the receiving groove 25 receives the vertical part 3 of the first ring-shaped element 1, the disassembling tool is guided and slid on the connecting wall 5 of the first ring-shaped element 1 through the supporting part 7, the guiding enables the disassembling tool to enter a disassembling position and complete orthogonal positioning, namely, the supporting part positioning surface 15 is axially positioned on the first positioning surface 16 of the horizontal part 4 of the first ring-shaped element 1, the lifting part positioning surface 17 is radially positioned on the second positioning surface 19 of the vertical part 3 of the first ring-shaped element 1, and the top surface of the inner hook platform 18 is clamped with the bottom surface of the first ring-shaped element 1 to obtain axial limiting, and in the disassembling position, the limiting hole 24 of the supporting part 7 is aligned with the threaded holes of the first ring-shaped element and the second ring-shaped element;

inserting the limiting pin 23 into the limiting hole 24 and the threaded hole to enable the disassembling tool to obtain radial limiting relative to the first annular part 1;

manually pulling the sliding hammer 22 to enable the sliding hammer 22 to axially slide upwards along the slideway 20 to impact the baffle ring 21, and enabling the first annular part 1 to axially displace upwards by a small amount of decomposition force;

the manual lifting decomposition tool is characterized in that the radial limiting device 13 guides the drawing direction to be axially upward, and the inner hook table 18 clamps the annular table 6 and lifts the first annular piece 1 upward along the axial direction;

after the target section of the first annular member 1 is decomposed, the decomposing tool is switched to the low point of the first annular member 1, and the steps are repeated.

It can be seen that this decomposition instrument has realized the orthogonal location of decomposition instrument relative first annular member 1 for the decomposition instrument can conveniently get into the decomposition position fast, has still realized the quick spacing of decomposition instrument on the decomposition position fixed and with the stable connection of first annular member 1, and the decomposition instrument still has the function that the direction was drawn in the guide, and the restriction is the axial to the direction of drawing of first annular member 1, reduces the damage of first annular member 1 and second annular member 2 among the decomposition process.

In the present embodiment, the first annular element 1 is described by taking a sealing ring as an example, and the second annular element 2 is described by taking a supporting conical wall as an example, it should be noted that the use objects of the decomposition tool are not limited to the sealing ring and the supporting conical wall, and in another embodiment or embodiments, the decomposition tool can be applied to the decomposition of other similar annular elements after appropriate adaptation is made. Although the present invention has been described with reference to the above embodiments, it is not intended to limit the present invention, and those skilled in the art may make variations and modifications without departing from the spirit and scope of the present invention. For example, the orthogonality is perpendicular intersection of two directions in the embodiment, but the orthogonality also includes intersection of two directions close to perpendicular, which also enables fast positioning.

Claims (11)

1. A disassembly tool for disassembling a first annular member and a second annular member, the first annular member and the second annular member forming an interference fit, the disassembly tool comprising:

a force application part for obtaining a decomposition force;

the supporting part is arranged on the radial first side of the lower end of the force application part and is provided with a supporting part positioning surface;

the lifting part is arranged on the radial second side of the lower end of the force application part, forms an accommodating groove with the supporting part and is used for receiving the first annular part, and the lifting part is provided with a lifting part positioning surface and an inner hook platform; and

a radial limiting device;

the disassembling tool is positioned on the first annular piece through the supporting part positioning surface to obtain axial positioning, positioned on the first annular piece through the lifting part positioning surface to obtain radial positioning, connected with the first annular piece through the radial limiting device to obtain radial limiting, and clamped with the annular table of the first annular piece through the inner hook table to obtain axial limiting.

2. The disassembly tool of claim 1, wherein the first ring-shaped member has a vertical portion, a horizontal portion, and a connecting wall connecting the vertical portion and the horizontal portion, the disassembly tool configured to: after the vertical part of the first annular part is received by the accommodating groove, the disassembling tool can slide on the connecting wall through the guide of the supporting part, and enters a state that the positioning surface of the supporting part is positioned on the first annular part, and simultaneously enters a state that the positioning surface of the lifting part is positioned on the first annular part and a state that the inner hook platform is clamped with the first annular part.

3. The disassembly tool of claim 1, wherein the force application portion comprises a moving member and a force application member, the moving member configured to be actuated to impact the force application member, the force application member further configured to transmit an impact force to the pull portion to provide the disassembly force via the snap-fit position of the inner hook land and the annular land.

4. The disassembly tool of claim 3, wherein the force application member comprises a slide, the slide is axially disposed, and a bottom of the slide is fixedly connected to the pulling portion and to the support portion;

the force application part further comprises a baffle ring, and the baffle ring is arranged at the top of the slide way, is fixedly connected with the top of the slide way and is used for bearing the impact force of the moving part.

5. The disassembly tool of claim 4 wherein the mover comprises a slide hammer that is drivable to slide along the slide to impact the retainer ring.

6. The disassembly tool of claim 1, wherein the support comprises an outward-extending table protruding from the disassembly tool along a radial side, and the support positioning surface is a bottom surface of the outward-extending table;

the first annular part is provided with a vertical part, a horizontal part and a connecting wall for connecting the vertical part and the horizontal part, and the top surface of the horizontal part provides a first positioning surface;

the first locating surface axially supports the support locating surface to enable the axial location of the break-up tool.

7. The disassembly tool of claim 1, wherein the first ring-shaped member has a vertical portion, a horizontal portion, and a connecting wall connecting the vertical portion and the horizontal portion;

the inner hook platform protrudes inwards from the containing groove along the radial direction, the positioning surface of the lifting part is a radial side cylindrical surface of the inner hook platform, the radial side cylindrical surface of the vertical part provides a second positioning surface, and the second positioning surface supports against the radial side cylindrical surface of the inner hook platform in the radial direction so that the decomposing tool can be positioned in the radial direction.

8. The disassembly tool of claim 7 wherein a top surface of the inner catch platform engages a bottom surface of the annular platform of the first ring member to provide the axial stop for the disassembly tool, the inner catch platform being capable of hooking the annular platform for lifting in the event of said engagement.

9. The disassembly tool of claim 1, wherein the radial stop means comprises a stop hole provided by the support portion and a stop member, the stop hole being aligned with the coupling hole of the first ring member when the disassembly tool achieves the axial positioning and the radial positioning, the stop member being adapted to be inserted into the stop hole and the coupling hole to limit the radial movement of the disassembly tool.

10. The disassembly tool of any of claims 1-9, wherein the support portion is only partially in circumferential contact with the first ring, and the pull portion is only partially in circumferential contact with the first ring.

11. A decomposition tool according to any of claims 1 to 9, wherein the first annular member is a packing ring and the second annular member is a supporting conical wall.

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