CN218489930U

CN218489930U - Tool equipment for dismounting and storing air inlet passage of Boeing 737NG aircraft engine

Info

Publication number: CN218489930U
Application number: CN202222901485.4U
Authority: CN
Inventors: 吴延磊; 杨军; 马超
Original assignee: Shandong Taikoo Aircraft Engineering Co Ltd
Current assignee: Shandong Taikoo Aircraft Engineering Co Ltd
Priority date: 2022-11-02
Filing date: 2022-11-02
Publication date: 2023-02-17
Anticipated expiration: 2032-11-02

Abstract

Tool equipment for dismounting and storing an air inlet passage of a Boeing 737NG aircraft engine comprises a chassis, a supporting seat, four supporting columns and four connecting sleeves, wherein the tool equipment adopts a ground lifting mode, but is simple in structure, easy and convenient to operate, free of occupying extra redundant space and capable of solving the problems of limited lifting, cranes and working space. Meanwhile, the whole dismounting and mounting precision is high, and the efficiency is improved.

Description

Tool equipment for disassembling, assembling and storing air inlet passage of Boeing 737NG aircraft engine

Technical Field

The utility model relates to an aircraft repair tools field, concretely relates to tool equipment that is used for boeing 737NG aircraft engine intake duct dismouting and deposits.

Background

The 737NG aircraft engine inlet duct is located at the front end of the engine, weighs 141 kg and is mounted on the engine core by 24 bolts. The boeing tool manual provides two dismounting modes, one mode is to use a hoisting tool, the mode needs to be matched with a travelling crane or a crane, the working environment is limited, if the travelling crane is not arranged outside a garage or the crane cannot approach the place, the travelling crane or the crane cannot be used, the other mode is to use ground lifting equipment, but the equipment is large in size and high in price, the equipment is limited by the space in front of the air inlet channel when in use, the air inlet channel cannot be transferred to a storage vehicle after being dismounted, the air inlet channel must be occupied for a long time until being remounted, and the use cost is high.

Disclosure of Invention

The utility model discloses an overcome not enough of above technique, provide an easy operation, low in manufacturing cost, can deposit the equipment to the intake duct.

The utility model overcomes the technical scheme that its technical problem adopted is:

a tool equipment for assembling, disassembling and storing an air inlet passage of a Boeing 737NG aircraft engine comprises:

the four corners of the upper end of the chassis are respectively fixed with a supporting seat along the vertical direction;

the four support columns are arranged in the corresponding support seats through the longitudinal moving device, and the longitudinal moving device drives the support columns to move relative to the support seats along the vertical direction;

the connecting device comprises four connecting sleeves, the connecting sleeve lower extreme is provided with the jack that matches with the support column external diameter, and the upper end of connecting sleeve is provided with the hoisting point seat along the horizontal direction, the lower extreme of hoisting point seat is provided with upright extension board along vertical direction, and the bolt passes and closes in the hoisting point screw of the intake duct of corresponding boeing 737NG aircraft soon behind the upright extension board, and the vertical mobile device drive support column shifts up to the jack that the head end of support column (8) inserted corresponding connecting sleeve.

In order to move conveniently, universal wheels are respectively installed at four corners of the lower end of the chassis.

Furthermore, the longitudinal moving device comprises a screw hole arranged in the supporting seat and an external thread arranged at the lower end of the supporting column, the axis of the screw hole is arranged in the vertical direction, and the lower end of the supporting column is screwed in the screw hole of the supporting seat through the external thread.

In order to facilitate the operation, the hand wheel is arranged on the support column and is coaxial with the support column.

Further, still include along the horizontal direction set up in pinhole I of support column upper end and along the horizontal direction set up in pinhole II in the connecting sleeve, when vertical mobile device drive support column moves up to the jack that the head end of support column inserted corresponding connecting sleeve and pinhole I and pinhole II to coaxial, the connecting pin inserts in pinhole I and pinhole II.

In order to prevent losing, still including installing in the end of connecting pin outside end, install annular go-between I on the end, annular go-between II is installed on the top of adapter sleeve, the one end of insurance rope is fixed in on go-between I, and its other end is fixed in on go-between II.

In order to prevent the bolt from falling off, the anti-falling device further comprises a retaining ring fixed on the bolt, the bolt head of the bolt is located at the inner side end of the upright support plate, and the retaining ring is located at the outer side end of the upright support plate.

In order to improve the stability, N support ribs are connected between the support seat and the chassis.

Preferably, N has a value of 4.

The left side and the right side of the chassis are respectively provided with a vertical support, the push rod is arranged above the chassis along the horizontal direction, and the two ends of the push rod are respectively connected with the upper ends of the vertical supports corresponding to the same side.

The utility model has the advantages that: the equipment adopts a ground lifting mode, but has simple structure, simple and convenient operation, does not need to occupy extra redundant space, solves the problems of limited travel crane, crane and working space, and has the manufacturing cost about one tenth of that of the boeing tool equipment. Meanwhile, the whole dismounting and mounting precision is high, and the efficiency is improved.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic three-dimensional structure diagram of the connection sleeve part of the present invention;

in the drawing, a chassis 1, a universal wheel 2, a supporting seat 3, a supporting rib 5, a screw hole 6, a hand wheel 7, a push rod 8, a supporting column 9, an external thread 10, a pin hole I11, a connecting sleeve 12, a connecting pin 13, an end 14, a connecting ring I15, a connecting ring II 16, a safety rope 17, a lifting point seat 18, an upright supporting plate 19, a bolt 20, a retaining ring 21 and an upright support are arranged.

Detailed Description

The present invention will be further described with reference to fig. 1 and 2.

A tool equipment for assembling, disassembling and storing an air inlet passage of a Boeing 737NG aircraft engine comprises: four corners of the upper end of the chassis 1 are respectively fixed with a supporting seat 3 along the vertical direction; the four support columns 8 are arranged in the corresponding support seats 3 through longitudinal moving devices, and the longitudinal moving devices drive the support columns 8 to move relative to the support seats 3 along the vertical direction; the lower end of each connecting sleeve 11 is provided with a jack matched with the outer diameter of the support column 8, the upper end of each connecting sleeve 11 is provided with a lifting point seat 17 along the horizontal direction, and the lower end of each lifting point seat 17 is provided with an upright support plate 18 along the vertical direction. When the air inlet channel needs to be dismantled, the chassis 1 is moved to the lower portion of the air inlet channel of the airplane, the bolt 19 penetrates through the vertical support plate 18 and then is screwed into a lifting point screw hole of the air inlet channel of the corresponding Boeing 737NG airplane, the longitudinal moving device drives the support column 8 to move upwards until the head end of the support column 8 is inserted into a jack of the corresponding connecting sleeve 11, then the longitudinal moving device drives the support column 8 to move upwards, the bolt 19 is stressed, parts on the air inlet channel and the engine are disconnected, the air inlet channel mounting bolt is dismantled, the chassis 1 is pushed to the front of the airplane direction at the moment, the air inlet channel is separated from the airplane, and then the chassis is pushed to a specified area of a hangar to be stored. The equipment adopts a ground lifting mode, but has simple structure, simple and convenient operation, does not occupy extra redundant space, solves the problems of limited travel hoisting, cranes and working space, and has the manufacturing cost about one tenth of that of the boeing tool equipment. Meanwhile, the whole dismounting and mounting precision is high, and the efficiency is improved.

When needs are installed the intake duct, with chassis 1 removal aircraft mounted position, later through vertical mobile device drive support column 8 shift up or descend to adjust the intake duct, with alignment engine and the locating pin and the locating hole of intake duct, after the intake duct removed the target in place, installation intake duct construction bolt made it be connected with the aircraft organism. After the installation is finished, the supporting column 8 is driven to move downwards through the longitudinal moving device, then the bolt 19 is loosened, the connecting sleeve 11 is separated from the air inlet channel, and finally the whole equipment is removed.

Universal wheels 2 can be respectively arranged at four corners of the lower end of the chassis 1. The whole device can be conveniently driven to move to an operation position through the universal wheels 2, and the convenience of operation is improved. Preferably, the vertical supports 21 are respectively installed on the left side and the right side of the chassis 1, the push rod 7 is arranged above the chassis 1 along the horizontal direction, and two ends of the push rod 7 are respectively connected with the upper ends of the vertical supports 21 corresponding to the same side. An operator can push or pull the whole chassis 1 to walk by using the universal wheels 2 more conveniently through the push rod 7, and the convenience of use and operation is further improved.

The longitudinal moving device can be of a structure comprising a screw hole 5 arranged in the supporting seat 3 and an external thread 9 arranged at the lower end of the supporting column 8, the axis of the screw hole 5 is arranged along the vertical direction, and the lower end of the supporting column 8 is screwed in the screw hole 5 of the supporting seat 3 through the external thread 9. Because 8 lower extremes of support column pass through external screw thread 9 and are connected with 5 screw thread drive of screw in the supporting seat 3, consequently rotate support column 8 and can realize its relative supporting seat 3 and remove on axial direction, realize along the regulation of vertical direction upper and lower high position, the operation is convenient. In one embodiment, a hand wheel 6 may be mounted on the support column 8, the hand wheel 6 being coaxial with the support column 8. The hand wheel 6 can be used for conveniently driving the supporting column 8 to rotate.

Furthermore, the device also comprises a pin hole I10 arranged at the upper end of the support column 8 along the horizontal direction and a pin hole II arranged in the connecting sleeve 11 along the horizontal direction. When the bolt 19 is screwed into a lifting point screw hole of an air inlet channel of a corresponding Boeing 737NG airplane, the support column 8 is driven to move upwards through the longitudinal moving device until the head end of the support column 8 is inserted into a jack of the corresponding connecting sleeve 11 and the pin hole I10 and the pin hole II are coaxial, the connecting pin 12 is inserted into the pin hole I10 and the pin hole II at the moment, the support column 8 and the connecting sleeve 11 are fixedly connected through the connecting pin 12, when the connecting sleeve 11 needs to be separated from the support column 8 during installation of the air inlet channel, the connecting pin 12 can be pulled out from the pin hole I10 and the pin hole II, and the installation and the disassembly are convenient. In an embodiment of the present invention, it is further preferable that the safety device further includes a tip 13 installed at an outer end of the connecting pin 12, a circular connecting ring i 14 is installed on the tip 13, a circular connecting ring ii 15 is installed at a top end of the connecting sleeve 11, one end of the safety rope 16 is fixed on the connecting ring i 14, and the other end of the safety rope is fixed on the connecting ring ii 15. The connecting pin 12 is flexibly connected with the connecting sleeve 11 through the safety rope 16, so that the connecting pin 12 can be used, and the connecting pin 12 is effectively prevented from being lost.

The bolt comprises a bolt 19, a retaining ring 20 and a bolt head 19, wherein the bolt head 19 of the bolt 19 is located at the inner end of the upright support plate 18, and the retaining ring 20 is located at the outer end of the upright support plate 18.

N supporting ribs 4 can be arranged between the supporting seat 3 and the chassis 1. The rigidity of the connection between the supporting seat 3 and the chassis 1 can be improved by arranging the supporting ribs 4, and the use reliability is further improved. More preferably, N is 4.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a tool equipment of boeing 737NG aircraft engine intake duct dismouting and deposit which characterized in that includes:

four corners of the upper end of the chassis (1) are respectively fixed with a supporting seat (3) along the vertical direction;

the four supporting columns (8) are arranged in the corresponding supporting seats (3) through longitudinal moving devices, and the longitudinal moving devices drive the supporting columns (8) to move relative to the supporting seats (3) along the vertical direction;

four adapter sleeves (11), adapter sleeve (11) lower extreme be provided with support column (8) external diameter assorted jack, the upper end of adapter sleeve (11) is provided with hoisting point seat (17) along the horizontal direction, the lower extreme of hoisting point seat (17) is provided with upright extension board (18) along vertical direction, bolt (19) pass upright extension board (18) back revolve fit in the hoisting point screw of the intake duct of corresponding boeing 737NG aircraft, longitudinal movement device drive support column (8) move up to the head end of support column (8) insert in the jack of corresponding adapter sleeve (11).

2. A tool apparatus for disassembly and storage of the boeing 737NG aircraft engine inlet according to claim 1, wherein: the universal wheels (2) are respectively installed at four corners of the lower end of the chassis (1).

3. A tool apparatus for disassembly and storage of the boeing 737NG aircraft engine inlet according to claim 1, wherein: the longitudinal moving device comprises a screw hole (5) arranged in the supporting seat (3) and an external thread (9) arranged at the lower end of the supporting column (8), the axis of the screw hole (5) is arranged along the vertical direction, and the lower end of the supporting column (8) is screwed in the screw hole (5) of the supporting seat (3) through the external thread (9).

4. The tool apparatus for disassembling and storing the boeing 737NG aircraft engine inlet according to claim 1, wherein: still including installing hand wheel (6) on support column (8), hand wheel (6) are coaxial with support column (8).

5. The tool apparatus for disassembling and storing the boeing 737NG aircraft engine inlet according to claim 1, wherein: the horizontal moving device is arranged on the upper end of the support column (8) and comprises a pin hole I (10) and a pin hole II, wherein the pin hole I (10) is arranged at the upper end of the support column (8) along the horizontal direction, the pin hole II is arranged in the connecting sleeve (11) along the horizontal direction, and when the longitudinal moving device drives the support column (8) to move upwards to the position where the head end of the support column (8) is inserted into the inserting hole of the corresponding connecting sleeve (11) and the pin hole I (10) and the pin hole II are coaxial, the connecting pin (12) is inserted into the pin hole I (10) and the pin hole II.

6. A tool apparatus for use in the removal and storage of the Boeing 737NG aircraft engine inlet according to claim 5, wherein: still including installing in end (13) of connecting pin (12) outside end, install annular go-between I (14) on end (13), annular go-between II (15) are installed on the top of adapter sleeve (11), and the one end of safety rope (16) is fixed in on go-between I (14), and its other end is fixed in on go-between II (15).

7. The tool apparatus for disassembling and storing the boeing 737NG aircraft engine inlet according to claim 1, wherein: the bolt structure further comprises a retaining ring (20) fixed on the bolt (19), the bolt head of the bolt (19) is located at the inner side end of the upright support plate (18), and the retaining ring (20) is located at the outer side end of the upright support plate (18).

8. A tool apparatus for disassembly and storage of the boeing 737NG aircraft engine inlet according to claim 1, wherein: n supporting ribs (4) are connected between the supporting seat (3) and the chassis (1).

9. The tool apparatus for installing, removing and storing the boeing 737NG aircraft engine intake duct of claim 8, wherein: and N takes the value of 4.

10. The tool apparatus for disassembling and storing the boeing 737NG aircraft engine inlet according to claim 1, wherein: vertical supports (21) are respectively installed on the left side and the right side of the chassis (1), the push rod (7) is arranged above the chassis (1) in the horizontal direction, and the two ends of the push rod (7) are respectively connected with the upper ends of the vertical supports (21) corresponding to the same side.