CN217317831U

CN217317831U - Dismounting device for aircraft hanger bush

Info

Publication number: CN217317831U
Application number: CN202220207933.8U
Authority: CN
Inventors: 李传宝
Original assignee: Rizhao Shantai Aircraft Engineering Co ltd
Current assignee: Rizhao Shantai Aircraft Engineering Co ltd
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2022-08-30
Anticipated expiration: 2032-01-26

Abstract

The utility model discloses an aircraft gallows bush dismouting device belongs to aircraft maintenance technical field, including flexible assembly, its characterized in that: the telescopic assembly is connected with the dismounting assembly, the dismounting assembly comprises a dismounting sleeve and a concentric positioning mechanism, a guide cavity with one open end is arranged on the dismounting sleeve, a flange plate is arranged at the open end of the dismounting sleeve, the concentric positioning mechanism is arranged in the guide cavity of the dismounting sleeve, the concentric positioning mechanism comprises a guide sleeve, a positioning ball body and a compression spring, and a plurality of positioning through holes are formed in the wall of the guide cavity; the positioning through hole is internally provided with a positioning ball body, the guide sleeve is inserted into the guide cavity of the dismounting sleeve, one end of the guide sleeve is connected with the end wall of the guide cavity of the dismounting sleeve through a compression spring, and the outer wall of the guide sleeve is provided with a plurality of guide grooves corresponding to the positioning through hole. Compared with the prior art have need not artifical the dismantlement, characteristics of quick concentric location.

Description

Dismounting device for aircraft hanger bush

Technical Field

The utility model relates to an aircraft overhauls technical field, especially an aircraft gallows bush dismouting device.

Background

At present, in the maintenance process of an ERJ190 aircraft, hanger refitting work needs to be performed to replace forged bushings of connecting devices at the lower parts of a left engine hanger and a right engine hanger, and the bushings are more in number and the workload is larger. Therefore, a special kit is required for disassembly and assembly. The screw and the cup of the existing special tool bag are easy to deform, so that the disassembly and the assembly are difficult. And the limit time of the freezing of the lining is very short when the existing special tool is installed, so that the optimal time is easily delayed when the tool is assembled, and the using effect of the tool is influenced.

Disclosure of Invention

The utility model aims to provide an aircraft gallows bush dismouting device to current assembly and disassembly tools be difficult to quick concentric location not enough, reach and need not artifical the dismantlement, the purpose of quick concentric location.

The utility model provides an aircraft hanger bush dismounting device, which comprises a telescopic assembly; the method is characterized in that: the telescopic assembly is connected with the dismounting assembly, the dismounting assembly comprises a dismounting sleeve and a concentric positioning mechanism, a guide cavity with one open end is arranged on the dismounting sleeve, a flange plate is arranged at the open end of the dismounting sleeve, the concentric positioning mechanism is arranged in the guide cavity of the dismounting sleeve, the concentric positioning mechanism comprises a guide sleeve, a positioning ball body and a compression spring, and a plurality of positioning through holes are formed in the wall of the guide cavity; the positioning through hole in install the location spheroid, the uide bushing insert in the telescopic direction intracavity of dismouting, the one end of uide bushing passes through compression spring and the telescopic direction chamber end wall of dismouting is connected, be equipped with a plurality of guide ways corresponding with positioning through hole on the outer wall of uide bushing, the diapire of guide way is the inclined plane, the one end height that the guide way diapire is less than the other end towards the ring flange.

The positioning through holes are uniformly distributed in a circumferential shape.

The dismounting sleeve is provided with two groups of positioning through holes, each group of positioning through holes is divided into three groups, and the two groups of positioning through holes are arranged in a staggered mode.

The area of the opening of the positioning through hole facing the outer side of the dismounting sleeve is respectively smaller than the diameter of the positioning ball body and the area of the inner side of the positioning through hole.

The guide cavity of the dismounting sleeve is rotatably connected with a screw, the center of the guide sleeve is provided with a thread through hole, and the screw is matched with the thread through hole of the guide sleeve.

The outer wall of the guide sleeve is provided with a guide slideway, the inner wall of the guide cavity of the dismounting sleeve is provided with a guide rail, and the guide rail is matched with the guide slideway.

And one end of the flange plate is provided with a positioning ring.

Compared with the prior art, the utility model discloses following outstanding beneficial effect has:

1. the utility model drives the dismounting assembly to eject the bush through the telescopic assembly, so that the dismounting is not required to be manually dragged through the screw rod, and the labor intensity of maintenance personnel is reduced;

2. the utility model discloses a dismouting assembly has concentric positioning mechanism, and concentric positioning mechanism can realize quick location in the through-hole of bush, has reduced the preparation time, has improved work efficiency.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the dismounting assembly of the present invention.

Fig. 3 is a schematic diagram of the internal structure of the present invention.

Fig. 4 is a right side view of the present invention.

Detailed Description

The invention is further described with reference to the drawings and the detailed description.

As shown in FIGS. 1-4, the utility model discloses a dismouting assembly 1 and flexible assembly 2.

Dismouting assembly 1 including dismouting sleeve 11 and concentric positioning mechanism 12, be equipped with one end open-ended direction chamber on the dismouting sleeve 11, dismouting sleeve 11 is equipped with open-ended one end and is equipped with ring flange 125, ring flange 125 is used for ejecting the bush, concentric positioning mechanism 12 is installed to dismouting sleeve 11's direction intracavity, concentric positioning mechanism 12 includes uide bushing 122, location spheroid 124 and compression spring 121, be equipped with a plurality of positioning hole that are circumference evenly distributed on the wall in direction chamber, positioning hole has a perfect understanding mutually with the direction chamber, positioning hole is less than positioning sphere 124's diameter and the inboard area of positioning hole respectively towards the opening area in the dismouting sleeve 11 outside.

In this embodiment, the dismounting sleeve 11 on be equipped with two sets of positioning hole, every positioning hole of group divide into three, two sets of positioning hole staggered arrangement each other.

The positioning through holes are internally provided with the positioning spheres 124, and because the opening areas of the positioning through holes towards the outer side of the dismounting sleeve 11 are respectively smaller than the diameters of the positioning spheres 124, the positioning spheres 124 are not exposed from the positioning through holes,

the guide sleeve 122 is inserted into the guide cavity of the dismounting sleeve 11, one end of the guide sleeve 122 is connected with the end wall of the guide cavity of the dismounting sleeve 11 through the compression spring 121, the outer wall of the guide sleeve 122 is provided with a plurality of guide grooves corresponding to the positioning through holes, the bottom wall of each guide groove is an inclined plane, and one end of the bottom wall of each guide groove, which faces the flange plate 125, is lower than the other end of the guide groove. Due to the action of the compression spring 121, the inclined surface of the bottom wall of the guide groove is abutted against the inner end of the positioning ball 124, and a part of the outer end of the positioning ball 124 is ejected out of the positioning through hole of the detachable sleeve 11.

In the optimized scheme, a screw 123 is rotatably connected in a guide cavity of the dismounting sleeve 11, a thread through hole is formed in the center of the guide sleeve 122, the screw 123 is matched with the thread through hole of the guide sleeve 122, a notch is formed in one end of the screw 123, and the notch of the screw 123 is used for rotating the screw 123 by using a screwdriver.

The outer wall of the guide sleeve 122 is provided with a guide slideway, the inner wall of the guide cavity of the dismounting sleeve 11 is provided with a guide rail 127, the guide rail 127 is matched with the guide slideway, when the screw 123 rotates, the guide sleeve 122 can slide along the guide rail 127, so that the guide groove at the lower end of the positioning ball 124 is changed from high to low, and the positioning ball 124 can enter the positioning through hole of the dismounting sleeve 11.

A positioning ring 126 is installed at one end of the flange 125, and an inner rod of the telescopic assembly 2 can be inserted into the positioning ring 126 and is matched with the dismounting assembly 1.

In this embodiment, the telescopic assembly 2 is a hydraulic cylinder, an electric telescopic rod and a cylinder.

The operation flow is as follows: use the utility model discloses the time, press guide sleeve 122, the guide way that makes locating sphere 124 lower extreme is by the step-down, make locating sphere 124 can enter into dismouting sleeve 11 positioning hole inside, put into the through-hole of bush with dismouting assembly 1, loosen guide sleeve 122, make the higher position on inclined plane of the diapire that makes the guide way push up again in locating sphere 124 inner, the positioning hole top of the partly ejecting dismouting sleeve 11 in outer end of locating sphere 124 on the inner wall of bush through-hole, carry out concentric location, make ring flange 125 top in the one end of bush. The inner rod of the telescopic assembly 2 can then be inserted into the positioning ring 126, and the telescopic assembly 2 is started, so that the flange 125 ejects the bushing.

It should be noted that while the invention has been described in detail with respect to specific embodiments thereof, it will be apparent to those skilled in the art that various obvious changes can be made therein without departing from the spirit and scope of the invention.

Claims

1. An aircraft hanger bushing dismounting device comprises a telescopic assembly (2); the method is characterized in that: the telescopic assembly (2) is connected with the dismounting assembly (1), the dismounting assembly (1) comprises a dismounting sleeve (11) and a concentric positioning mechanism (12), a guide cavity with an opening at one end is formed in the dismounting sleeve (11), a flange plate (125) is arranged at one end, provided with an opening, of the dismounting sleeve (11), the concentric positioning mechanism (12) is installed in the guide cavity of the dismounting sleeve (11), the concentric positioning mechanism (12) comprises a guide sleeve (122), a positioning ball body (124) and a compression spring (121), and a plurality of positioning through holes are formed in the wall of the guide cavity; the utility model discloses a positioning sleeve, including the location through-hole in the flange dish (125), the location through-hole in install location spheroid (124), uide bushing (122) insert in the direction intracavity of dismouting sleeve (11), the direction chamber end wall of one end of uide bushing (122) through compression spring (121) and dismouting sleeve (11) is connected, be equipped with a plurality of guide ways corresponding with the positioning through-hole on the outer wall of uide bushing (122), the diapire of guide way is the inclined plane, the one end height of guide way diapire towards flange dish (125) is less than the other end.

2. An aircraft hanger bushing removal device as defined in claim 1, wherein: the plurality of positioning through holes are uniformly distributed in a circumferential shape.

3. The aircraft pylon bushing removal apparatus of claim 1, wherein: the dismounting sleeve (11) is provided with two groups of positioning through holes, each group of positioning through holes is divided into three groups, and the two groups of positioning through holes are arranged in a staggered mode.

4. The aircraft pylon bushing removal apparatus of claim 1, wherein: the opening area of the positioning through hole facing the outer side of the dismounting sleeve (11) is respectively smaller than the diameter of the positioning ball body (124) and the area of the inner side of the positioning through hole.

5. The aircraft pylon bushing removal apparatus of claim 1, wherein: the screw rod (123) is rotatably connected in the guide cavity of the dismounting sleeve (11), the center of the guide sleeve (122) is provided with a thread through hole, and the screw rod (123) is matched with the thread through hole of the guide sleeve (122).

6. An aircraft hanger bushing removal device as defined in claim 5, wherein: the outer wall of the guide sleeve (122) is provided with a guide slideway, the inner wall of the guide cavity of the dismounting sleeve (11) is provided with a guide rail (127), and the guide rail (127) is matched with the guide slideway.

7. The aircraft pylon bushing removal apparatus of claim 1, wherein: and one end of the flange plate (125) is provided with a positioning ring (126).