CN219404167U - Special dismounting tool for special nuts - Google Patents

Abstract

The utility model relates to a special dismounting tool for a special nut, which comprises an end cover and a fixing piece, wherein the end cover comprises a main body part and a plurality of protruding parts integrally connected with the main body part, the protruding parts correspond to grooves of the special nut one by one, and the fixing piece is detachably connected with the end cover and used for fixing the end cover on the special nut. Compared with the prior art, the end cover of the special disassembly and assembly tool for the special nut is provided with the convex parts which are in one-to-one correspondence with the grooves, the end cover can be correspondingly fixed on the special nut by utilizing the fixing piece, the convex parts are correspondingly clamped with the grooves, and the special nut can be driven to synchronously rotate by screwing the end cover, so that disassembly and assembly are realized.

Description

Special dismounting tool for special nuts

Technical Field

The utility model relates to the technical field of dismounting tools, in particular to a special dismounting tool for a special nut.

Background

In the field of aviation, it is necessary to use a special nut, which has a circular structure as shown in fig. 1, and is provided with external threads on the outer surface for connecting with a bushing to fix a bearing. A plurality of grooves are provided on the upper surface for mounting.

Due to the size, the depth of the groove is only about 3mm, the stressed area is small, and the groove is easy to slip and damage when a special nut is disassembled by using a traditional wrench. A special tool is lacking to disassemble and assemble the special nut.

Disclosure of Invention

In view of the foregoing, it is necessary to provide a special dismounting tool for a special nut, so as to solve the technical problem that the special nut is dismounted without a special tool in the prior art.

The utility model provides a special dismounting tool for a special nut, which comprises the following components: the end cover comprises a main body part and a plurality of protruding parts integrally connected with the main body part, the protruding parts correspond to grooves of the special nuts one by one, and the fixing part is detachably connected with the end cover and used for fixing the end cover on the special nuts.

Further, the main body part comprises a pressing part, the pressing part is provided with a first side face and a second side face which are opposite, and the protruding part is arranged on the first side face; when the protruding parts are clamped with the grooves in a one-to-one correspondence mode, the first side faces are attached with special nuts.

Further, the main body part further comprises a screwing part fixedly arranged on the second side surface, and the screwing part is coaxial with the pressing part.

Further, the main body part further comprises an extension part fixedly arranged on the first side surface, the extension part is coaxial with the pressing part, and when the protruding parts are clamped with the grooves in a one-to-one correspondence mode, the extension part is embedded in the central hole of the special nut.

Further, the end cover is formed with a mounting hole penetrating through the screwing part, the pressing part and the extending part in sequence, and the fixing piece detachably fixes the end cover on the special nut through the mounting hole.

Further, the fixing piece comprises a bolt and a nut, wherein the bolt penetrates through the mounting hole and the central hole and is detachably connected with the nut so as to fix the end cover and the special nut.

Further, the fixing piece further comprises a gasket sleeved on the bolt and abutted with the nut.

Further, the screwing part is of a prismatic structure.

Further, the outer surface of the extension part is of a cylindrical structure.

Further, the boss is disposed around the extension.

Compared with the prior art, the end cover of the special disassembly and assembly tool for the special nut is provided with the convex parts which are in one-to-one correspondence with the grooves, the end cover can be correspondingly fixed on the special nut by utilizing the fixing piece, the convex parts are correspondingly clamped with the grooves, and the special nut can be driven to synchronously rotate by screwing the end cover, so that disassembly and assembly are realized.

The foregoing description is only an overview of the present utility model, and is intended to provide a better understanding of the present utility model, as it is embodied in the following description, with reference to the preferred embodiments of the present utility model and its details set forth in the accompanying drawings. Specific embodiments of the present utility model are given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a schematic view of a special nut;

FIG. 2 is an assembly view of one embodiment of the special nut-specific disassembly tool provided by the present utility model;

fig. 3 is a schematic view of the end cap of fig. 2.

Detailed Description

Preferred embodiments of the present utility model will now be described in detail with reference to the accompanying drawings, which form a part hereof, and together with the description serve to explain the principles of the utility model, and are not intended to limit the scope of the utility model.

Referring to fig. 1, the present utility model provides a special dismounting tool for special nuts. The special nut special dismounting tool dismantles a special nut 1. The special nut structure is ring-shaped, an external thread 11 is arranged on the outer surface, and a plurality of grooves 12 are arranged on the upper surface.

Referring to fig. 2, in order to avoid abrasion to the aircraft body when the outer ring of the bearing 3 rotates, the bearing 3 is generally mounted in the bushing 2, and then the bushing 2 is fixedly mounted on the aircraft body. The bushing 2 is internally provided with a cavity for placing the bearing 3, one end of the cavity is in threaded connection with the special nut 1, and the special nut 1 tightly presses and fixes the bearing 3 in the bushing 2. When the bearing 3 needs to be replaced, the special nut 1 needs to be disassembled by using the special disassembling tool for the special nut.

The special nut special dismounting tool comprises an end cover 4 and a fixing piece 5, wherein the end cover 4 comprises a main body part 41 and a plurality of protruding parts 42 integrally connected with the main body part 41, the number, the shape and the position of the protruding parts 42 are in one-to-one correspondence with the grooves 12 of the special nut 1, the fixing piece 5 is detachably connected with the end cover 4 to fix the end cover 4 on the special nut 1, and the protruding parts 42 are clamped with the grooves 12 in one-to-one correspondence after being fixed. The special nut 1 can be driven to synchronously rotate by screwing the end cover 4, so that the disassembly and assembly are realized.

Referring to fig. 3, the main body 41 of the end cap 4 includes a pressing portion 411, the pressing portion 411 has a first side and a second side opposite to each other, and the protrusion 42 is disposed on the first side. When the protruding parts 42 are clamped with the grooves 12 in a one-to-one correspondence mode, the first side faces are attached to the special nuts 1. In the present embodiment, the cross section of the pressing portion 411 is circular, and has a rotation axis.

The main body 41 further includes a screwing portion 412 fixed on the second side, and the screwing portion 412 is coaxial with the pressing portion 411. The screwing part 412 is a part for screwing, and after the end cap 4 is fixed to the special nut 1, torque is applied to the screwing part 412 to screw the special nut 1. In a preferred embodiment, the screw 412 is prismatic in configuration to facilitate screwing using a wrench.

The main body 41 further includes an extension portion 413 fixedly disposed on the first side, where the extension portion 413 is coaxial with the pressing portion 411, and when the protruding portion 42 is engaged with the groove 12 in a one-to-one correspondence manner, the extension portion 413 is embedded in the central hole of the special nut 1. The outer surface of the extension 413 is preferably cylindrical in structure, preventing deflection when the bearing 3 is disassembled and increasing the bearing surface area. And the boss 42 is disposed around the extension 413.

In the present embodiment, the end cap 4 is formed with the mounting hole 43 penetrating the screwing part 412, the pressing part 411, and the extension part 413 in order, and the fixing member 5 detachably fixes the end cap 4 to the special nut 1 through the mounting hole 43.

Referring again to fig. 2, in the present embodiment, the fixing member 5 includes a bolt 51 and a nut 52, and the bolt 51 and the nut 52 may be standard members of appropriate types. The bolt 51 penetrates through the mounting hole 43 and the central hole on the special nut 1 and is detachably connected with the nut 52, and the bolt 51 and the nut 52 cooperate to clamp and fix the end cover 4 and the special nut 1. The bolt 51 can be sleeved with a gasket 53, the gasket 53 is positioned between the nut 52 and the bushing 2, and the nut 52 is pressed on the bushing 2 through the gasket 53, so that the surface of the bushing 2 is prevented from being damaged.

In other embodiments, the fixing member 5 may be in other connection fixing forms, such as a special fixture, so long as detachable fixing can be achieved.

The end cover of the special disassembly and assembly tool for the special nut is provided with the convex parts which are in one-to-one correspondence with the grooves, the end cover can be correspondingly fixed on the special nut by utilizing the fixing piece, the convex parts are correspondingly clamped with the grooves, and the special nut can be driven to synchronously rotate by screwing the end cover, so that disassembly and assembly are realized.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model.

Claims (10)

1. The utility model provides a special assembly and disassembly tools of special nut, its special nut that is used for dismouting aviation field, its characterized in that includes: the end cover comprises a main body part and a plurality of protruding parts integrally connected with the main body part, the protruding parts correspond to the grooves of the special nuts one by one, and the fixing parts are detachably connected with the end cover to fix the end cover on the special nuts.

2. The special nut specific disassembly tool as claimed in claim 1, wherein the main body part comprises a press-fit part, the press-fit part has a first side face and a second side face which are opposite, and the protruding part is arranged on the first side face; when the protruding parts are clamped with the grooves in a one-to-one correspondence mode, the first side faces are attached to the special nuts.

3. The special nut attaching and detaching tool according to claim 2, wherein said main body portion further includes a screwing portion fixed to said second side surface, said screwing portion being coaxial with said press-fit portion.

4. The special nut assembling and disassembling tool according to claim 3, wherein the main body further comprises an extending portion fixedly arranged on the first side face, the extending portion is coaxial with the pressing portion, and the extending portion is embedded in the central hole of the special nut when the protruding portion is clamped with the groove in one-to-one correspondence.

5. The special nut attaching and detaching tool according to claim 4, wherein the end cap is formed with a mounting hole penetrating the screwing part, the pressing part and the extending part in order, and the fixing member detachably fixes the end cap to the special nut through the mounting hole.

6. The special nut attaching and detaching tool according to claim 5, wherein said fixing member includes a bolt and a nut, said bolt penetrating said mounting hole and said center hole and detachably connected to said nut for fixing said end cap and said special nut.

7. The special nut remover as claimed in claim 6, wherein the fixing member further comprises a spacer sleeved on the bolt and abutting against the nut.

8. A special nut specific disassembly tool as defined in claim 3, wherein the screw portion is of prismatic configuration.

9. The special nut remover as claimed in claim 4, wherein the outer surface of the extension part has a cylindrical structure.

10. The special nut specific disassembly tool of claim 4, wherein the boss is disposed around the extension.