Dismounting device for input sealing end cover
By designing a combination device of a socket puller and a nut wrench, the problem of damage caused by improper operation during the disassembly of the input sealing end cap was solved, and a stable and non-destructive disassembly process was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN QINLING LINKCO AVIATION POWER SYST CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-24
AI Technical Summary
In the prior art, improper operation can easily damage the input sealing assembly when disassembling the input sealing end cap, especially the graphite ring, which may break or fall off.
An input sealing end cap disassembly device was designed, including a sleeve puller, a nut wrench and a base. The nut wrench is connected to the sleeve puller by a threaded engagement. Tightening the nut wrench drives the sleeve puller to move axially, thereby achieving stable disassembly of the input sealing end cap and avoiding human error.
It enables stable disassembly of the input sealing end cap, reduces the difficulty of operation, avoids damage caused by improper manual operation, and ensures the non-destructive nature of the disassembly process.
Smart Images

Figure CN224158363U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to disassembly tools, specifically to an input sealing end cap disassembly device. Background Technology
[0002] When disassembling the input sealing assembly, the input sealing end cap needs to be pulled out of the input housing. The existing disassembly tooling method is to screw the connecting rod into the threaded hole of the input sealing end cap, then put the handle on the connecting rod, tighten the nut, and the operator holds the handle with both hands, rotates and lifts it to pull the input sealing assembly out vertically.
[0003] When using this disassembly tool, the operator must visually ensure that the input sealing end cap is pulled out vertically, which requires a high level of skill. Improper operation during the pulling process can easily cause the input sealing end cap to collide with the product's input shaft, resulting in damage or chipping of the graphite ring inside the input sealing assembly. Utility Model Content
[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose an input sealing end cap disassembly device to solve the technical problem that the input sealing component is easily damaged when disassembling the input sealing end cap in the prior art.
[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:
[0006] In a first aspect, this utility model provides an input sealing end cap disassembly device, comprising:
[0007] A sleeve puller, wherein the upper end of the sleeve puller is formed with an external thread and the lower end of the sleeve puller is formed with a connecting mechanism, the connecting mechanism being used for detachable connection with the input sealing end cap;
[0008] A nut wrench, wherein the nut wrench is connected to the external thread;
[0009] The base has its upper end abutting against the nut wrench, and its lower end abutting against the housing connected to the input sealing end cap.
[0010] In some embodiments, the upper end of the sleeve puller forms a cylindrical portion, and the outer surface of the cylindrical portion forms the external thread.
[0011] In some embodiments, the sleeve puller has a plurality of the connecting mechanisms, which are evenly distributed around the axis of the cylindrical portion.
[0012] In some embodiments, the connecting mechanism includes a connecting part and a special screw. The connecting part is integrally connected to the cylindrical part. The connecting part has a through hole, and the special screw passes through the through hole and can be detachably connected to a threaded hole on the input sealing end cap.
[0013] In some embodiments, the connecting mechanism further includes a bushing, the bushing having a hollow structure and a retaining ring extending inward from the upper end of the bushing, the lower end of the bushing being fixedly connected to the connecting portion, and the retaining ring being used to block the special screw.
[0014] In some embodiments, the nut wrench is a ring structure, with an internal thread corresponding to the external thread formed on its inner side and a screwing handle formed on its outer side.
[0015] In some embodiments, the upper end of the substrate is slidably sleeved with the cylindrical portion.
[0016] In some embodiments, a plurality of bases are formed at the lower end of the substrate, and the plurality of bases are evenly distributed around the axis of the cylindrical portion.
[0017] In some embodiments, the base and the connecting mechanism are alternately distributed.
[0018] In some embodiments, the outer surface of the base is an arc surface and is arranged in close contact with the housing.
[0019] Compared with the prior art, the input sealing end cap disassembly device provided by this utility model is connected by a nut wrench and a sleeve puller through a threaded connection. By turning the nut wrench, the sleeve puller is driven to move axially, thereby pulling out the input sealing end cap axially. The movement path of the input sealing end cap is fixed, eliminating the adverse effects of human operation errors on the input sealing end cap and avoiding damage to the input sealing end cap during disassembly. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of the input sealing end cap disassembly device provided in this embodiment of the utility model;
[0021] Figure 2 This is an exploded view of the input sealing end cap disassembly device provided in an embodiment of this utility model. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0023] To address the technical problem of easily damaging the input sealing end cap due to improper operation during disassembly, this utility model provides an input sealing end cap disassembly device that can reduce disassembly difficulty, eliminate human intervention, and disassemble the input sealing end cap without damage.
[0024] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the input sealing end cap disassembly device provided in this embodiment of the utility model; Figure 2 This is an exploded view of the input sealing end cap disassembly device provided in an embodiment of this utility model. The input sealing end cap disassembly device includes a sleeve puller 1, a nut wrench 2, and a base 3.
[0025] The upper end of the sleeve puller 1 has an external thread 11, and the lower end of the sleeve puller 1 has a connecting mechanism 12. The connecting mechanism 12 is used to detachably connect with the input sealing end cover, thereby fixing the sleeve puller 1 on the input sealing end cover.
[0026] Nut wrench 2 is connected to external thread 11.
[0027] The upper end of the base 3 abuts against the nut wrench 2, and the lower end of the base 3 is used to abut against the housing connected to the input sealing end cover.
[0028] When the nut wrench 2 is turned downwards relative to the sleeve puller 1, the nut wrench 2 cannot move downwards due to the obstruction of the base 3. The reaction force then drives the puller sleeve 1 upwards. The puller sleeve 1 then pulls the input sealing end cap out vertically. Operation is simple; only the nut wrench 2 needs to be turned. Simultaneously, the movement path of the input sealing end cap is fixed, preventing lateral swaying that could damage it.
[0029] In some embodiments, the upper end of the sleeve puller 1 forms a cylindrical portion, and the outer surface of the cylindrical portion forms an external thread.
[0030] In some embodiments, the sleeve puller 1 has a plurality of connecting mechanisms 12, which correspond one-to-one with the threaded holes on the input sealing end cap. In this embodiment, since the threaded holes on the input sealing end cap are evenly distributed around its central axis, the corresponding plurality of connecting mechanisms 12 are also evenly distributed around the axis of the cylindrical portion.
[0031] In some embodiments, the connecting mechanism 12 includes a connecting portion 121 and a special screw 122. The connecting portion 121 is integrally connected to the cylindrical portion. The connecting portion 121 has a through hole. The thread of the special screw 122 matches the threaded hole on the input sealing end cap. The special screw 122 passes through the through hole and can be detachably connected to the threaded hole on the input sealing end cap.
[0032] In a preferred embodiment, the connecting mechanism 12 further includes a bushing 123. The bushing 123 has a hollow structure, and a retaining ring extends inward from the upper end of the bushing 123. The lower end of the bushing 123 is fixedly connected to the connecting portion 121. The retaining ring is used to block the special screw 122. This confines the special screw 122 within the space enclosed by the bushing 123 and the connecting portion 121, preventing the special screw 122 from being lost. Simultaneously, a screwdriver or other special tool can be passed through the hollow bushing 123 to tighten the special screw 122.
[0033] In some embodiments, the nut wrench 2 is an annular structure with an internal thread corresponding to the external thread on its inner side and a tightening handle 21 on its outer side. As shown in the figure, by providing multiple grooves of suitable size, it is easy for the operator to pinch the nut wrench 2 with their fingers, thereby tightening the nut wrench 2 more effectively.
[0034] In some embodiments, the upper end of the base 3 is slidably sleeved with the cylindrical portion to make the base 3 and the sleeve puller 1 have better coaxiality.
[0035] In some embodiments, a plurality of bases 31 are formed at the lower end of the base 3. The plurality of bases 31 are evenly distributed around the axis of the cylindrical portion, and the bases 31 abut against the housing connected to the input sealing end cap.
[0036] In some embodiments, the base 31 and the connecting mechanism 12 are alternately distributed, thereby exposing the connecting mechanism 12 and avoiding obstruction to the tightening of the special screw 122.
[0037] In some embodiments, the outer surface of the base 31 is an arc surface and is arranged in close contact with the housing. The housing forms a cylindrical structure around the input sealing end cover. The base 31 not only abuts against the housing located on the bottom surface of the cylindrical structure, but also against the inner wall of the cylindrical structure, thereby making the base 3 and the input sealing end cover have good coaxiality.
[0038] To better understand this utility model, the following is combined with... Figure 1 and Figure 2 The technical solution of this utility model is described in detail as follows: In use, first install the sleeve puller 1 onto the input sealing end cover, specifically by connecting the input sealing end cover with a special screw 122. Then install the base 3, and then tighten the nut wrench 2 to pull out the input sealing end cover, completing the disassembly.
[0039] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.
Claims
1. An input sealing end cap disassembly device, characterized in that, include: A sleeve puller, wherein the upper end of the sleeve puller is formed with an external thread and the lower end of the sleeve puller is formed with a connecting mechanism, the connecting mechanism being used for detachable connection with the input sealing end cap; A nut wrench, wherein the nut wrench is connected to the external thread; The base has its upper end abutting against the nut wrench, and its lower end abutting against the housing connected to the input sealing end cap.
2. The input sealing end cap disassembly device according to claim 1, characterized in that, The upper end of the sleeve puller forms a cylindrical portion, and the outer surface of the cylindrical portion forms the external thread.
3. The input sealing end cap disassembly device according to claim 2, characterized in that, The sleeve puller has multiple connecting mechanisms, which are evenly distributed around the axis of the cylindrical portion.
4. The input sealing end cap disassembly device according to claim 2, characterized in that, The connecting mechanism includes a connecting part and a special screw. The connecting part is integrally connected to the cylindrical part. The connecting part has a through hole. The special screw passes through the through hole and can be detachably connected to the threaded hole on the input sealing end cap.
5. The input sealing end cap disassembly device according to claim 4, characterized in that, The connecting mechanism also includes a bushing, which is a hollow structure and has a retaining ring extending inward from the upper end of the bushing. The lower end of the bushing is fixedly connected to the connecting part, and the retaining ring is used to block the special screw.
6. The input sealing end cap disassembly device according to claim 1, characterized in that, The nut wrench has a ring structure, with an internal thread corresponding to the external thread on its inner side and a screw handle on its outer side.
7. The input sealing end cap disassembly device according to claim 2, characterized in that, The upper end of the base is slidably sleeved with the cylindrical part.
8. The input sealing end cap disassembly device according to claim 3, characterized in that, Multiple bases are formed at the lower end of the substrate, and the multiple bases are evenly distributed around the axis of the cylindrical portion.
9. The input sealing end cap disassembly device according to claim 8, characterized in that, The base and the connecting mechanism are alternately distributed.
10. The input sealing end cap disassembly device according to claim 8, characterized in that, The outer surface of the base is an arc surface and is arranged in close contact with the shell.