CN215235546U

CN215235546U - Sealant removing assembly and sealant removing equipment for screw cap in aircraft fuel tank

Info

Publication number: CN215235546U
Application number: CN202120538278.XU
Authority: CN
Inventors: 王盼方; 付喜朝; 赵加坤; 冯改忠; 冷逢运; 袁涛
Original assignee: Guangzhou Aircraft Maintenance Engineering Co Ltd
Current assignee: Guangzhou Aircraft Maintenance Engineering Co Ltd
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2021-12-21
Anticipated expiration: 2031-03-15

Abstract

The utility model discloses a sealed gluey subassembly of removing of gluing and the equipment of removing of aircraft tank incasement nut, it includes the cutter mount pad, revolves to cutter, horizontal cutter, lock nut and screw adapter to remove gluey subassembly, the cutter mount pad is cylindrical, the lower part of cutter mount pad is for having the screwed thread section, and upper portion is the cylinder section, the chute has been seted up to the circumference of screw section, horizontal trompil has been seted up to the cylinder section, revolve to the cutter and install on the chute, horizontal cutter is installed on the trompil, lock nut and the screw thread section threaded connection of cutter mount pad, tighten lock nut with fixed revolve to cutter and horizontal cutter, screw adapter fixed mounting be in the top of cutter mount pad. The glue removing assembly is simple in structure and capable of removing the sealant of the screw cap in the aircraft fuel tank. The utility model discloses simultaneously disclose the equipment of removing glue that contains this subassembly of removing glue.

Description

Sealant removing assembly and sealant removing equipment for screw cap in aircraft fuel tank

Technical Field

The utility model relates to an aircraft tank's the equipment of removing glue specifically indicates the subassembly and the equipment of removing glue of removing of sealed glue of aircraft tank incasement nut.

Background

The design of a structural oil tank is adopted by each type of airplane of modern civil aviation, and sealing glue is used on each combination surface of a structural part and the head of a screw cap of a fastening screw rod to seal so as to prevent the leakage of fuel oil in the oil tank.

With the aging of an aircraft company operating an aircraft, the frequency of nondestructive testing (hereinafter referred to as NDT) required by a structure in an oil tank is higher and higher, and meanwhile, the phenomena of aging and loosening of a sealing glue of a screw cap in the oil tank of the aircraft frequently cause the leakage of the oil tank. The NDT inspection of the structure in the fuel tank or the leakage of the fuel in the fuel tank needs to firstly remove the old sealant, and the new sealant is sealed again after the NDT inspection or repair work is finished.

The removal work of the sealant of the screw cap in the oil tank of the airplane is always a difficult problem which troubles the engineering system, the glue removal of the oil tank is difficult, the unplanned shutdown time of the airplane can be prolonged, however, a practical and effective solution is not available in the industry at present, the sealant is removed by using a non-metal scraper knife manually basically, the method depends on brute force, consumes time and labor, has long repair time and causes great economic loss for the airline company.

In the prior art, the sealing glue with a larger shape on the nut is cut off by using an inner hexagonal (or inner plum blossom) sleeve depending on cutting force generated by rotation, and then the residual sealing glue is cut off by using a shovel blade. For example, the pneumatic tool is connected with the inner hexagonal sleeve through the adapter, and the pneumatic force drives the sleeve to rotate at a high speed to cut off the sealant with a larger shape on the nut head.

During the use, the pneumatic tool (drilling gun or polishing gun and other pneumatic tools) clamps an adapter, the adapter is connected with a sleeve slightly larger than a screw cap, after an air source is switched on, the pneumatic tool drives the sleeve to rotate at a high speed, the sealant with the larger shape of the screw cap head can be cut off, and the scraper knife is used for removing the residual sealant.

For the sealant on the screw cap, the method can be used for cutting off the sealant with larger shape, but the method has the following defects: the sleeve does not have the cutting edge, only relies on rotatory cutting force who produces to cut sealed glue, and frictional force is very big, produces too much heat easily, can ablate the sleeve simultaneously, can only get rid of the great sealed glue of shape moreover, remaining sealed glue still need be got rid of with the shovel sword manual work, shovel and glue inefficiency.

SUMMERY OF THE UTILITY MODEL

One of the purposes of the utility model is to provide a subassembly is glued in removing of sealed glue of aircraft tank incasement nut, should remove gluey subassembly simple structure, can get rid of the sealed glue of aircraft tank incasement nut.

The above object of the present invention is achieved by the following technical solutions: subassembly is glued in removing of sealed glue of aircraft tank incasement nut, its characterized in that: remove gluey subassembly and include the cutter mount pad, revolve to cutter, horizontal cutter, lock nut and screw adapter, the cutter mount pad is cylindrical, the lower part of cutter mount pad is for having the screwed screw thread section, and upper portion is the cylinder section, the chute has been seted up to the circumference of screw thread section, horizontal trompil has been seted up to the cylinder section, it installs to the cutter soon on the chute, horizontal cutter fixed mounting be in on the trompil, lock nut and the screw thread section threaded connection of cutter mount pad, it presss from both sides tightly to tighten lock nut and fixes revolve to cutter and horizontal cutter, it all is to expose the form to the tool bit of cutter and horizontal cutter soon, screw adapter fixed mounting be in the top of cutter mount pad.

The utility model discloses in, the chute is the same three of structure, and the inclination of chute is 45 degrees, and three chute is followed the circumference of screw thread section evenly sets up, it is three to revolve to the cutter.

The utility model discloses in, the louvre has all been seted up to the side and the top surface of cutter mount pad.

In the utility model, the cutter mounting seat is made of aluminum alloy; the materials of the rotary cutter and the transverse cutter are aluminum alloys; the locking nut is made of plastic.

The utility model discloses in, horizontal cutter with installation cooperation between the trompil is the tight fit.

The utility model discloses a remove gluey subassembly has to revolve to and the horizontal cutter, revolves to the cutter and is used for the sealed cutting of gluing of nut hoop, and horizontal cutter is used for the sealed cutting of gluing at nut top, should remove gluey subassembly and can get rid of the sealed glue of nut head by the efficient cutting, can not produce too much heat moreover, and the cutting removes gluey high quality, does not need the manual work to get rid of again.

The second purpose of the utility model is to provide the gluey equipment of removing of subassembly is glued in removing of sealed glue of aircraft tank incasement nut, should remove gluey equipment and can realize removing gluey mechanization to can improve shovel and glue efficiency, shorten shovel and glue the time limit for a project.

The above object of the present invention is achieved by the following technical solutions: the sealed gluey equipment of removing of subassembly that removes that contains above-mentioned aircraft tank incasement nut, its characterized in that: remove gluey equipment and still include the angle and bore, the angle bore with threaded adapter is connected, and the angle bores and removes gluey subassembly action through the drive of threaded adapter.

Compared with the prior art, the glue removing equipment of the embodiment utilizes the principle of rotary cutting, cuts the sealant in the circumferential direction of the nut by utilizing the rotary cutter on the cutter mounting seat, and then is matched with the transverse cutter to cut the sealant at the top of the nut. The aluminum alloy blade can not damage the steel nut, and the plastic locking nut on the outer ring can also protect the aircraft structure, so that the aircraft structure has the characteristics of safety, high efficiency and reliability.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic view of the overall structure of the sealant removing device for the screw cap in the aircraft tank of the present invention;

FIG. 2 is a schematic view of the overall structure of the sealant removing assembly of the nut in the fuel tank of the aircraft according to the present invention;

FIG. 3 is an exploded view of FIG. 2;

FIG. 4 is a part view of a tool mounting seat in a sealant removing assembly of a nut in an aircraft fuel tank of the present invention;

figure 5 is the part drawing of the locking nut in the glue removing component of the sealing glue of the screw cap in the aircraft fuel tank of the utility model.

Reference numbers in the figures:

1-a tool mounting seat; 11-a chute; 12-opening holes; 13-heat dissipation holes; 2-rotating direction cutter; 3-a transverse cutter; 4-locking the nut; 5-a screw adapter; 6-angle drilling.

Detailed Description

According to the sealant removing equipment of the screw cap in the aircraft fuel tank box shown in the figures 1 to 5, the sealant removing equipment comprises an angle drill 6 and a sealant removing assembly, the sealant removing assembly comprises a cutter mounting seat 1, a rotary cutter 2, a transverse cutter 3, a locking nut 4 and a threaded adapter 5, the angle drill 6 is connected with the threaded adapter 5, and the angle drill 6 drives the sealant removing assembly to move through the threaded adapter 5.

In the subassembly that removes of this embodiment, cutter mount pad 1 is cylindrical, cutter mount pad 1's lower part is for having the screwed thread section, upper portion is the cylinder section, chute 11 has been seted up to the circumference of screw section, horizontal trompil 12 has been seted up to the cylinder section, install on chute 11 to cutter 2 soon, 3 fixed mounting of horizontal cutter are on trompil 12, installation cooperation between horizontal cutter 3 and the trompil 12 is the tight fit, lock nut 4 and cutter mount pad 1's screw thread section threaded connection, it presss from both sides tight fixed turning to cutter 2 to screw up lock nut 4, the tool bit of turning to cutter 2 and horizontal cutter 3 all is the form that exposes, 5 fixed mounting of screw adapter is on the top of cutter mount pad 1.

In this embodiment, the chute 11 is the same three structure, and the inclination of chute 11 is 45 degrees, and three chute 11 evenly set up along the circumference of screw thread section, and it is three to revolve to cutter 2. The side and the top of the cutter mounting seat 1 are both provided with heat dissipation holes 13 for heat dissipation.

In this embodiment, the material of the tool mounting base 1 is aluminum alloy; the rotary cutter 2 and the transverse cutter 3 are made of aluminum alloy; the material of lock nut 4 is the plastic, chooses for use the plastic material can effectively prevent to glue the in-process damage aircraft tank structure at the shovel.

When the glue removing equipment is used, three rotating tools 2 and a transverse tool 3 are installed on the tool mounting seat 1, then the locking nut 4 is installed on the outer ring of the tool mounting seat 1, the locking nut 4 is screwed up, the rotating tools 2 and the transverse tool 3 are completely fixed, and the glue removing assembly is assembled.

Then will remove gluey subassembly 1 and be connected with angle drill 6, after angle drill 6 switches on the air supply, press angle drill 6 switch, can utilize the rotation of angle drill 6 to drive through threaded adapter 5 and remove gluey subassembly and begin to rotate, remove gluey subassembly and utilize three to revolve to cutter 2 and a horizontal cutter 3 to cut the sealed glue at nut circumferencial direction and nut top. The rotary cutter 2 is used for cutting the sealant on the circumferential direction of the screw cap, the transverse cutter 3 is used for cutting the sealant on the top of the screw cap, the aircraft structure cannot be damaged, and the rotary cutting machine has the advantages of being safe, efficient and reliable.

The above embodiments of the present invention are not right the utility model discloses the limited protection scope, the utility model discloses an embodiment is not limited to this, all kinds of basis according to the above-mentioned of the utility model discloses an under the above-mentioned basic technical thought prerequisite of the utility model, right according to ordinary technical knowledge and the conventional means in this field the modification, replacement or the change of other multiple forms that above-mentioned structure made all should fall within the protection scope of the utility model.

Claims

1. Subassembly is glued in removing of sealed glue of aircraft tank incasement nut, its characterized in that: the glue removing component comprises a cutter mounting seat (1), a turning cutter (2), a transverse cutter (3), a locking nut (4) and a threaded adapter (5), the cutter mounting seat (1) is cylindrical, the lower part of the cutter mounting seat (1) is a threaded section with threads, the upper part of the cutter mounting seat is a cylindrical section, the circumference of the thread section is provided with an inclined groove (11), the cylindrical section is provided with a horizontal opening (12), the rotary cutter (2) is arranged on the inclined groove (11), the transverse cutter (3) is fixedly arranged on the open hole (12), the locking nut (4) is in threaded connection with the threaded section of the cutter mounting seat (1), the locking nut (4) is screwed down to clamp and fix the rotary cutter (2), the tool bits of the rotary cutter (2) and the transverse cutter (3) are exposed, the threaded adapter (5) is fixedly installed at the top end of the cutter mounting seat (1).

2. The sealant-removing assembly for nuts in an aircraft fuel tank as claimed in claim 1, wherein: chute (11) are the same three of structure, and the inclination of chute (11) is 45 degrees, and three chute (11) are followed the circumference of screw thread section evenly sets up, it is three to revolve to cutter (2).

3. The sealant-removing assembly for nuts in an aircraft fuel tank as claimed in claim 2, wherein: the side surface and the top surface of the cutter mounting seat (1) are provided with heat dissipation holes (13).

4. The sealant-removing assembly for nuts in an aircraft fuel tank as claimed in claim 2, wherein: the cutter mounting seat (1) is made of aluminum alloy.

5. The sealant-removing assembly for nuts in an aircraft fuel tank as claimed in claim 2, wherein: the rotary cutter (2) and the transverse cutter (3) are made of aluminum alloy.

6. The sealant-removing assembly for nuts in an aircraft fuel tank as claimed in claim 2, wherein: the transverse cutter (3) is tightly matched with the open hole (12) in an installation manner.

7. The sealant-removing assembly for nuts in an aircraft fuel tank as claimed in claim 2, wherein: the locking nut (4) is made of plastic.

8. Glue removal apparatus for a glue removal assembly comprising a screw cap sealant according to any one of claims 1 to 7, wherein: remove gluey equipment still includes angle and bores (6), angle bore (6) with screw adapter (5) are connected, and angle bores (6) and removes gluey subassembly action through screw adapter (5) drive.