Ring disassembly tool

Abstract

The application discloses a disassembling tool for a ring-shaped part, which comprises a jaw assembly, the jaw assembly comprising a mounting seat, two jaws and a linkage component, the two jaws being symmetrically arranged on the mounting seat; the mounting seat is provided with a through slot in the length direction; each of the two jaws comprises a connecting part arranged in the length direction of the through slot and a clamping part arranged in the axial direction of the ring-shaped part, the connecting part of each of the two jaws is inserted into the through slot at the end away from the clamping part, and the connecting parts of the two jaws at least partially coincide in the width direction of the through slot; the linkage component is arranged through the coinciding parts of the connecting parts of the two jaws, and the two jaws are simultaneously moved into or out of the through slot by the linkage component. The specific structure of the disassembling tool is arranged, linkage and synchronous movement of the two jaws are realized, the positions of the two jaws can be simultaneously adjusted, the centering adjustment time is reduced, the disassembling tool has the self-centering function, and has the advantages of simple structure, convenient operation and high disassembling efficiency.

Description

Technical Field

[0001] This invention relates to a tool for disassembling ring-shaped parts. Background Technology

[0002] In existing technologies, to ensure the stability, repeatability, and coaxiality of engine rotor component assembly, interference fits are typically used between components. Disassembling annular components with interference fits requires specialized disassembly tools. For example... Figure 5 and Figure 6 As shown, the annular part 2 (such as a sealing ring) is fixed to the rear axle of the turbine by an interference fit. The outer periphery of the end of the annular part 2 is provided with a disassembly groove 21. The claw of the disassembly tool can be locked in the disassembly groove to transmit the pulling force generated by the sliding hammer or hydraulic cylinder to achieve the disassembly of the annular part.

[0003] Patent document CN201910481914.7 discloses a bearing inner ring disassembly tool, which provides a conventional tool structure for disassembling interference ring parts. The two jaws can slide back and forth radially to adjust the jaw gap, which satisfies the installation and clamping of the jaws. However, since the jaws are independently adjustable and lack self-centering function, the relative position of the jaws needs to be adjusted during the installation process before being clamped by a special hoop, which is relatively cumbersome. Usually, the installation of this type of disassembly tool requires at least two operators to cooperate with each other.

[0004] Therefore, how to improve the assembly and disassembly efficiency of disassembly tools is a problem that urgently needs to be solved in this field. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the low assembly and disassembly efficiency of the disassembly tools in the prior art, and to provide a disassembly tool for ring-shaped parts.

[0006] The present invention solves the above-mentioned technical problems through the following technical solution:

[0007] A disassembly tool for annular components, characterized in that the disassembly tool includes a jaw assembly, the jaw assembly including a mounting base, two jaws and a linkage component, the two jaws being symmetrically arranged on the mounting base;

[0008] The mounting base has a through groove along its length;

[0009] Both of the jaws include a connecting portion arranged along the length direction of the through groove and an engaging portion arranged along the axial direction of the annular member. The ends of the connecting portions of the two jaws away from the engaging portions are inserted into the through groove, and the connecting portions of the two jaws at least partially overlap in the width direction of the through groove. The linkage component passes through the overlapping portion of the connecting portions of the two jaws, and the linkage component is used to drive the two jaws to move simultaneously into or out of the through groove.

[0010] In this technical solution, by setting the specific structure of the disassembly tool, the two jaws are linked and move synchronously, which can adjust the position of the two jaws at the same time, reduce the centering adjustment time, and have a self-centering function; the disassembly tool of this technical solution has a simple structure, is easy to operate, and has high assembly and disassembly efficiency.

[0011] Preferably, the connecting portion of the two claws is provided with symmetrically inclined oblique slots, and the linkage component is simultaneously inserted into the two oblique slots along the width direction of the through groove;

[0012] The linkage component moves upward along the axial direction in the two inclined slots, causing the two claws to move into the through slot simultaneously, or moves downward along the axial direction, causing the two claws to move out of the through slot simultaneously.

[0013] Alternatively, the linkage component can move upward along the axial direction in the two inclined slots, causing the two jaws to move out of the through slot simultaneously, or move downward along the axial direction, causing the two jaws to move in the through slot simultaneously.

[0014] In this technical solution, the oblique slot serves as a guide, enabling the up-and-down movement of the linkage component to drive the corresponding movement of the chuck more stably and accurately.

[0015] Preferably, the overlapping portion of the connecting parts of the two claws is a snap-fit ​​structure with matching concave and convex parts, and the shape and size of the snap-fit ​​structure of the connecting parts of the two claws after snapping are the same as the shape and size of the non-overlapping portion of the connecting part of any one of the claws.

[0016] In this technical solution, the above-mentioned configuration ensures that the connecting part of the claw maintains a consistent shape, thereby enabling better movement within a through slot with a constant width.

[0017] Preferably, a limiting groove is formed on the mounting base along the axial direction, and the end of the linkage component away from the pawl is located in the limiting groove.

[0018] In this technical solution, by setting a limiting groove, the linkage component is guided and limited in its axial up and down movement.

[0019] Preferably, the claw assembly further includes a driving component, which drives the linkage component to move upward or downward along the axial direction.

[0020] In this technical solution, a driving component is provided to drive the linkage component to move upward or downward along the axial direction.

[0021] Preferably, the mounting base has an axially oriented mounting hole, one end of the driving component passes through the mounting hole and is threaded into the mounting hole, and the other end is connected to the linkage component.

[0022] In this technical solution, through the above-mentioned configuration, the driving component rotates within the mounting hole, causing the linkage component to move axially upward or downward; furthermore, the thread has a self-locking function, which can stabilize the relative position of the two jaws and prevent the jaws from dislodging from the disassembly groove of the annular part.

[0023] Preferably, the drive component includes a head and a rod connected along the axial direction, wherein the outer diameter of the head is larger than the outer diameter of the rod and larger than the diameter of the mounting hole;

[0024] The rod portion comprises a first part and a second part connected in sequence from near the head to away from the head. The outer diameter of the first part is larger than the outer diameter of the second part. A limiting step is provided between the first part and the second part. The first part is threadedly engaged with the mounting hole. The second part passes through the linkage component. The second part is threadedly engaged with a retaining ring sleeved outside the second part. The end of the linkage component away from the pawl is clamped between the limiting step and the retaining ring.

[0025] In this technical solution, a more stable connection with the linkage component is achieved by setting the specific structure of the driving component.

[0026] Preferably, the outer periphery of the annular part is provided with a disassembly groove, and the engaging part of the claw is provided with a boss on the side facing the disassembly groove away from the connecting part, and the boss can be engaged in the disassembly groove.

[0027] In this technical solution, a boss is provided to achieve the engagement of the claw with the disassembly groove of the annular part.

[0028] Preferably, the disassembly tool further includes a sliding hammer assembly, which includes a sliding hammer and a guide rod both arranged axially. The sliding hammer is slidably sleeved on the guide rod, and one end of the guide rod is connected to the mounting base of the claw assembly.

[0029] In this technical solution, the inertial force generated by the slide hammer in the axial direction is transmitted to the ring component through the chuck, thereby realizing the disintegration of the ring component.

[0030] The positive and progressive effects of this invention are as follows:

[0031] This invention achieves linkage and synchronous movement of the two jaws by setting the specific structure of the disassembly tool, enabling simultaneous adjustment of the positions of the two jaws, reducing centering adjustment time, and having a self-centering function; the disassembly tool of this invention has a simple structure, is easy to operate, and has high assembly and disassembly efficiency. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural schematic diagram of the disassembly tool for the ring-shaped part according to a preferred embodiment of the present invention.

[0033] Figure 2 This is a three-dimensional structural schematic diagram of the disassembly tool for the ring-shaped part according to a preferred embodiment of the present invention from another angle.

[0034] Figure 3 This is a three-dimensional exploded view of the disassembly tool for the ring-shaped part according to a preferred embodiment of the present invention.

[0035] Figure 4 This is a cross-sectional structural schematic diagram of the disassembly tool for the annular component according to a preferred embodiment of the present invention.

[0036] Figure 5 This is a three-dimensional structural diagram of the disassembly tool for the ring-shaped part according to a preferred embodiment of the present invention during operation.

[0037] Figure 6 This is a schematic diagram of the structure of the disassembly tool for the ring-shaped part according to a preferred embodiment of the present invention during operation.

[0038] Explanation of reference numerals in the attached figures

[0039] Decomposition Tool 1

[0040] Claw assembly 10

[0041] Mounting bracket 11

[0042] Through slot 111

[0043] Limiting groove 112

[0044] Mounting hole 113

[0045] Claw 12

[0046] Connecting part 121

[0047] Inclined slot 1211

[0048] Card Section 122

[0049] 1221 convex surface

[0050] 123 Interlocking structure

[0051] Concave structure 1231

[0052] Protruding structure 1232

[0053] Linkage component 13

[0054] Joint Operations Department 131

[0055] Limiting part 132

[0056] Fixing part 133

[0057] Drive component 14

[0058] Head 141

[0059] 142 of the pole

[0060] Part 1, page 1421

[0061] Part Two, 1422

[0062] Limiting step 1423

[0063] 15 retaining rings

[0064] Slide weight assembly 30

[0065] Slide 31

[0066] Guide rod 32

[0067] Limiting ring 33

[0068] Ring part 2

[0069] Decomposition tank 21 Detailed Implementation

[0070] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments.

[0071] like Figures 1 to 6 As shown, this embodiment provides a disassembly tool 1 for annular components. The disassembly tool 1 includes a jaw assembly 10 and a sliding hammer assembly 30. The jaw assembly 10 includes a mounting base 11, two jaws 12, and a linkage component 13. The two jaws 12 are symmetrically arranged on the mounting base 11.

[0072] The mounting base 11 has a through groove 111 along its length. The length direction L of the through groove 111 is the same as the length direction of the mounting base. Similarly, the width direction W of the through groove 111 is the same as the width direction of the mounting base.

[0073] Both jaws 12 include a connecting portion 121 connected along the length direction L of the through groove 111 and a locking portion 122 connected along the axial direction P of the annular member 2. The ends of the connecting portions 121 of the two jaws 12 away from the locking portions 122 are inserted into the through groove 111, and the connecting portions 121 of the two jaws 12 at least partially overlap in the width direction W of the through groove 111. The linkage member 13 passes through the overlapping portion of the connecting portions 121 of the two jaws 12, and the linkage member 13 is used to drive the two jaws 12 to move simultaneously into or out of the through groove 111. The simultaneous movement of the two jaws 12 into or out of the through groove 111 changes the span of the jaws formed by the two jaws 12, satisfying the requirements for the installation of the disassembly tool 1 and the clamping of the disassembly groove 21 of the annular member 2.

[0074] In this way, by setting the specific structure of the disassembly tool 1, the two jaws 12 are linked and move synchronously, and the positions of the two jaws 12 can be adjusted at the same time, reducing the centering adjustment time and having a self-centering function. The disassembly tool 1 in this embodiment has a simple structure, is easy to operate, and has high assembly and disassembly efficiency.

[0075] In this embodiment, the connecting portion 121 of the two claws 12 is provided with symmetrically inclined oblique slots 1211, and the linkage component 13 is simultaneously inserted into the two oblique slots 1211 along the width direction W of the through slot 111. The upward displacement of the linkage component 13 along the axial direction P in the two oblique slots 1211 drives the two claws 12 to move simultaneously into the through slot 111, or the downward displacement along the axial direction P drives the two claws 12 to move simultaneously out of the through slot 111. The oblique slots 1211 act as guides, enabling the up-and-down movement of the linkage component 13 to drive the corresponding movement of the claws 12 more stably and accurately. However, this is not the only embodiment. In other embodiments, the upward displacement of the linkage component 13 along the axial direction P can drive the two claws 12 to move simultaneously out of the through slot 111, or the downward displacement along the axial direction P can drive the two claws 12 to move simultaneously into the through slot 111. This can be adjusted by adjusting the inclination direction of the oblique slots 1211.

[0076] The overlapping portion of the connecting part 121 of the two jaws 12 is a snap-fit ​​structure 123 with a concave-convex fit. The shape and size of the snap-fit ​​structure 123 after the two jaws 12 are engaged are the same as the shape and size of the non-overlapping portion of the connecting part 121 of any one jaw 12. The snap-fit ​​structure 123 of the connecting part 121 of the two jaws 12 maintains the consistency of the connecting part 121's shape, thereby enabling better movement within the through slot 111 of constant width.

[0077] Specifically, the cross-sectional shape of the non-overlapping portion of the connecting part 121 of the two claws 12 matches the cross-sectional shape of the through groove 111; the cross-sectional shape of the engaging structure 123 of the connecting part 121 of the two claws 12 after being engaged together also matches the cross-sectional shape of the through groove 111. That is to say, along the width direction W of the through groove 111, the engaging structure 123 of one of the two claws 12 is a recessed structure 1231, and the engaging structure 123 of the other claw 12 is a protruding structure 1232 that cooperates with the recessed structure 1231, and the cross-sectional shape of the two after being engaged matches the cross-sectional shape of the through groove 111.

[0078] In this embodiment, the cross-sectional shape of the through groove 111 is rectangular, and similarly, the connecting part 121 of the two claws 12 is also rectangular to facilitate processing.

[0079] A limiting groove 112 is formed on the mounting base 11 along the axial direction P, and the end of the linkage component 13 away from the pawl 12 is located in the limiting groove 112. By setting the limiting groove 112, the up and down movement of the linkage component 13 in the axial direction P is guided and limited.

[0080] Preferably, the chuck assembly 10 further includes a drive component 14, which drives the linkage component 13 to move upward or downward along the axial direction P. The drive component 14 is configured to drive the linkage component 13 to move upward or downward along the axial direction P.

[0081] Mounting base 11 has a mounting hole 113 along the axial direction P. The orthographic projection of mounting hole 113 on the axial direction P does not overlap with the orthographic projection of through groove 111 on the axial direction P, nor does it overlap with the orthographic projection of limiting groove 112 on the axial direction P. One end of driving component 14 passes through mounting hole 113 and is threaded into mounting hole 113, and the other end is connected to linkage component 13. Driving component 14 drives linkage component 13 to move upward or downward along the axial direction P by rotating within mounting hole 113; and the thread has a self-locking function, which can stabilize the relative position of the two pawls 12 and prevent pawls 12 from dislodging from the disassembly groove 21 of annular component 2.

[0082] Specifically, the linkage component 13 includes, along the horizontal direction, a linkage part 131, a limiting part 132, and a fixing part 133 connected in sequence. The linkage part 131 is inserted into the oblique groove 1211 of the connecting part 121 of the two claws 12, and the shape of the linkage part 131 matches the shape of the oblique groove 1211; the limiting part 132 slides along the axial direction P in the limiting groove 112; the fixing part 133 is connected to the drive component 14. The side of the fixing part 133 near the connecting part 121 is attached to the outside of the limiting groove 112 to limit the position of the linkage component 13 in the horizontal direction. The linkage component 13 has a compact structure and realizes the transmission between the drive component 14 and the claws 12.

[0083] Specifically, the drive component 14 includes a head 141 and a rod 142 connected along the axial direction P. The outer diameter of the head 141 is larger than the outer diameter of the rod 142 and also larger than the diameter of the mounting hole 113. The rod 142 includes a first part 1421 and a second part 1422 connected in sequence from near the head 141 to away from the head 141. The outer diameter of the first part 1421 is larger than the outer diameter of the second part 1422. A limiting step 1423 is provided between the first part 1421 and the second part 1422. The first part 1421 is threaded into the mounting hole 113, and the second part 1422 passes through the linkage component 13. The second part 1422 is threaded into a retaining ring 15 sleeved on the outside of the second part 1422. The end of the linkage component 13 away from the pawl 12 is clamped between the limiting step 1423 and the retaining ring 15. In this way, by setting the specific structure of the drive component 14, a more stable connection with the linkage component 13 is achieved.

[0084] like Figure 5 and Figure 6 As shown, the outer periphery of the annular part 2 is provided with a disassembly groove 21. The engaging part 122 of the claw 12, away from the connecting part 121, has a boss 1221 on the side facing the disassembly groove 21. The boss 1221 can be engaged in the disassembly groove 21 to achieve engagement between the claw 12 and the disassembly groove 21 of the annular part 2. After the disassembly tool 1 is installed on the annular part 2, the central axis of the disassembly tool 1 coincides with the central axis of the annular part 2.

[0085] The sliding hammer assembly 30 includes a sliding hammer 31 and a guide rod 32 both arranged along the axial direction P. The sliding hammer 31 is slidably sleeved on the guide rod 32. One end of the guide rod 32 is connected to the mounting base 11 of the claw assembly 10. Specifically, the connection between the guide rod 32 and the mounting base 11 can be achieved through a threaded engagement. The inertial force generated by the sliding hammer 31 in the axial direction P is transmitted to the annular member 2 through the claw 12, thereby achieving the disintegration of the annular member 2. Both ends of the guide rod 32 along the axial direction P are respectively provided with limiting rings 33 to limit the sliding area of ​​the sliding hammer 31.

[0086] This embodiment achieves synchronized movement and linkage of the two jaws by designing the specific structure of the disassembly tool. It allows for simultaneous adjustment of the two jaw positions, reducing centering adjustment time and providing a self-centering function. The disassembly tool in this embodiment has a simple structure, is easy to operate, and has high assembly and disassembly efficiency. It should be noted that, compared to existing bearing inner ring disassembly tools that require two operators to cooperate for installation, the disassembly tool in this embodiment only requires a single operator to operate the linkage components to install both jaws, greatly improving operational convenience and reducing labor costs.

[0087] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A disassembly tool (1) for a ring-shaped component (2), characterized in that, The disassembly tool (1) includes a jaw assembly (10), which includes a mounting base (11), two jaws (12) and a linkage component (13). The two jaws (12) are symmetrically arranged on the mounting base (11). The mounting base (11) has a through groove (111) along its length. Both of the claws (12) include a connecting portion (121) connected along the length direction of the through groove (111) and a locking portion (122) connected along the axial direction of the annular member (2). The ends of the connecting portions (121) of the two claws (12) away from the locking portion (122) are inserted into the through groove (111), and the connecting portions (121) of the two claws (12) overlap at least partially in the width direction of the through groove (111). The linkage member (13) passes through the overlapping portion of the connecting portions (121) of the two claws (12), and the linkage member (13) is used to drive the two claws (12) to move simultaneously into or out of the through groove (111). The two connecting portions (121), the two engaging portions (122), and the mounting base (11) define an area for clamping the outer periphery of the annular member (2). When the two claws (12) move simultaneously into the through groove (111), the two claws (12) are used to engage with the outer periphery of the annular member (2) through the engaging portions (122). The connecting part (121) of the two claws (12) is provided with symmetrical inclined slots (1211). The linkage component (13) extends into the through slot (111) along the width direction of the through slot (111) and is simultaneously inserted into the two inclined slots (1211). The linkage component (13) moves upward along the axial direction in the two inclined slots (1211), causing the two claws (12) to move into the through slot (111) simultaneously, or moves downward along the axial direction, causing the two claws (12) to move out of the through slot (111) simultaneously. Alternatively, the linkage component (13) can move upward along the axial direction in the two oblique slots (1211) to drive the two claws (12) to move out of the through slot (111) at the same time, or move downward along the axial direction to drive the two claws (12) to move into the through slot (111) at the same time.

2. The disassembly tool (1) for the ring-shaped part (2) as described in claim 1, characterized in that, The overlapping part of the connecting part (121) of the two claws (12) is a snap-fit ​​structure (123) with concave and convex shapes, and the shape and size of the snap-fit ​​structure (123) of the connecting part (121) of the two claws (12) after snapping are the same as the shape and size of the non-overlapping part of the connecting part (121) of any one of the claws (12).

3. The disassembly tool (1) for the ring-shaped part (2) as described in claim 1, characterized in that, A limiting groove (112) is provided on the mounting base (11) along the axial direction, and the end of the linkage component (13) away from the claw (12) is located in the limiting groove (112).

4. The disassembly tool (1) for the ring-shaped part (2) as described in claim 1, characterized in that, The claw assembly (10) also includes a driving component (14), which drives the linkage component (13) to move upward or downward along the axial direction.

5. The disassembly tool (1) for the ring-shaped part (2) as described in claim 4, characterized in that, The mounting base (11) has an axially oriented mounting hole (113). One end of the driving component (14) passes through the mounting hole (113) and is threaded into the mounting hole (113), while the other end is connected to the linkage component (13).

6. The disassembly tool (1) for the ring-shaped part (2) as described in claim 5, characterized in that, The drive component (14) includes a head (141) and a rod (142) connected in the axial direction. The outer diameter of the head (141) is larger than the outer diameter of the rod (142) and larger than the diameter of the mounting hole (113). The rod (142) includes a first part (1421) and a second part (1422) connected in sequence from near the head (141) to away from the head (141). The outer diameter of the first part (1421) is larger than the outer diameter of the second part (1422). A limiting step (1423) is provided between the first part (1421) and the second part (1422). The first part (1421) is threadedly engaged with the mounting hole (113). The second part (1422) passes through the linkage component (13). The second part (1422) is threadedly engaged with a retaining ring (15) sleeved outside the second part (1422). One end of the linkage component (13) away from the pawl (12) is clamped between the limiting step (1423) and the retaining ring (15).

7. The disassembly tool (1) for the ring-shaped part (2) as described in claim 1, characterized in that, The outer periphery of the annular part (2) is provided with a decomposition groove (21). The engagement part (122) of the claw (12) is provided with a boss (1221) on the side away from the connecting part (121) and facing the decomposition groove (21). The boss (1221) can be engaged in the decomposition groove (21).

8. The disassembly tool (1) for the annular component (2) as described in any one of claims 1-7, characterized in that, The disassembly tool (1) also includes a sliding hammer assembly (30), which includes a sliding hammer (31) and a guide rod (32) both arranged along the axial direction. The sliding hammer (31) is slidably sleeved on the guide rod (32), and one end of the guide rod (32) is connected to the mounting base (11) of the claw assembly (10).

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