CN113199781A - Method for repairing rubber pad on lubricating oil tank bracket of aircraft engine - Google Patents
Method for repairing rubber pad on lubricating oil tank bracket of aircraft engine Download PDFInfo
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- CN113199781A CN113199781A CN202110480367.8A CN202110480367A CN113199781A CN 113199781 A CN113199781 A CN 113199781A CN 202110480367 A CN202110480367 A CN 202110480367A CN 113199781 A CN113199781 A CN 113199781A
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- Prior art keywords
- rubber pad
- oil tank
- lubricating oil
- arc
- repairing
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 137
- 239000010687 lubricating oil Substances 0.000 title claims abstract description 91
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000000853 adhesive Substances 0.000 claims abstract description 17
- 230000001070 adhesive effect Effects 0.000 claims abstract description 17
- 238000003825 pressing Methods 0.000 claims description 41
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 8
- 239000004819 Drying adhesive Substances 0.000 claims description 6
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000003921 oil Substances 0.000 claims description 5
- 229920001973 fluoroelastomer Polymers 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000007822 coupling agent Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 3
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 3
- 244000137852 Petrea volubilis Species 0.000 claims description 2
- 239000002828 fuel tank Substances 0.000 claims 9
- 206010023230 Joint stiffness Diseases 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 14
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 4
- 238000000576 coating method Methods 0.000 abstract description 4
- 238000002791 soaking Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical group CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
- B29C73/04—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D using preformed elements
- B29C73/10—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D using preformed elements using patches sealing on the surface of the article
- B29C73/12—Apparatus therefor, e.g. for applying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
- B29C73/04—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D using preformed elements
- B29C73/10—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D using preformed elements using patches sealing on the surface of the article
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
- C09J4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/748—Machines or parts thereof not otherwise provided for
- B29L2031/749—Motors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
Abstract
The invention relates to the technical field of aero-engines, in particular to a method for repairing a rubber pad on a lubricating oil tank bracket of an aero-engine, which comprises the steps of removing an old rubber pad; then coating adhesives on the surface of the lubricating oil tank bracket and the surface of the new rubber pad, and pre-installing the new rubber pad on the lubricating oil tank bracket for preliminary positioning; finally, the rubber pad repairing tool manufactured by the invention is used for improving the fit tightness of the new rubber pad and the lubricating oil tank bracket, so that the fit tightness of the new rubber pad and the lubricating oil tank bracket meets the requirement, and the repairing work of the rubber pad on the lubricating oil tank bracket is completed. The rubber pad repairing tool manufactured by the invention can quickly ensure the connection strength of a new rubber pad and the lubricating oil tank bracket, effectively improve the repairing effect and efficiency of the rubber pad on the lubricating oil tank bracket of the aero-engine, can also repair at normal temperature, and is beneficial to quick repairing and using of the aero-engine on site.
Description
Technical Field
The invention relates to the technical field of aero-engines, in particular to a method for repairing a rubber pad on a lubricating oil tank bracket of an aero-engine.
Background
The aircraft engine lubricating oil tank is installed on the lubricating oil tank support, and is closely connected with the engine into a whole through the lubricating oil tank support, and the rubber pad of taking the spud is connected with the locating hole of lubricating oil tank support through two spuds, avoids lubricating oil tank and lubricating oil tank support direct contact, reduces wearing and tearing between lubricating oil tank support and the lubricating oil tank, plays effects such as slow shake. Due to the influence of the external severe environment and the vibration in flight, the rubber pad positioning pile is often broken and fails, so that the rubber pad slides out, and the oil tank and the bracket can collide to cause leakage in severe cases.
When a rubber pad positioning pile breaks and fails, a rubber pad on a lubricating oil tank support needs to be repaired, and at present, a rubber pad repairing method is to take an old rubber pad down and replace the old rubber pad with a new rubber pad. Because the lubricating oil tank support is arc-shaped and has a certain radian, the rubber pad has good plastic elasticity, and the tightness of the periphery of the rubber pad, which is tightly attached to the oil tank support, is not easy to meet the requirements during repair, thereby seriously affecting the repair effect and repair efficiency of the rubber pad.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method for repairing a rubber pad on an aircraft engine lubricating oil tank bracket, which has good repairing effect and high efficiency.
The technical scheme adopted by the invention for solving the technical problems is as follows: the method for repairing the rubber pad on the lubricating oil tank bracket of the aircraft engine comprises the following steps:
a. removing the old rubber pad on the lubricating oil tank bracket;
b. coating adhesives on the surface of the lubricating oil tank support and the surface of the new rubber pad;
c. pre-installing a new rubber pad on the lubricating oil tank support, and arranging a positioning pile of the new rubber pad in a positioning hole of the lubricating oil tank support;
d. manufacturing a rubber pad repairing tool, wherein the rubber pad repairing tool comprises an installation support, an arc-shaped base, an arc-shaped pressing plate, a supporting vertical plate, a top plate and a jacking stud;
the arc-shaped base is arranged on the mounting support, the supporting vertical plate is arranged on the mounting support, and the top plate is arranged on the supporting vertical plate;
the top plate is provided with a threaded hole, the threaded hole is arranged right above the arc-shaped base, the jacking stud is vertically arranged in the threaded hole, and the jacking stud can move up and down in the threaded hole;
the arc-shaped pressing plate is detachably arranged above the arc-shaped base, and the lower end part of the jacking stud can act on the arc-shaped pressing plate;
e. improve the laminating degree of tightness of new rubber pad and lubricating oil tank support, specifically do: firstly, placing a lubricating oil tank support pre-provided with a new rubber pad on an arc-shaped base, then placing an arc-shaped pressing plate on the lubricating oil tank support, finally screwing a jacking stud to move downwards, enabling the lower end part of the jacking stud to act on the arc-shaped pressing plate, and enabling the jacking stud to provide a downward acting force for the arc-shaped pressing plate to improve the fit tightness of the new rubber pad and the lubricating oil tank support;
f. after the fit tightness of the new rubber pad and the lubricating oil tank support reaches the requirement, the jacking stud is screwed to move upwards, the lubricating oil tank support is taken down from the rubber pad repairing tool, and therefore the repairing work of the rubber pad on the lubricating oil tank support is completed.
Further, in step a, the used rubber pad is removed by soaking the oil tank bracket in an organic solvent for less than 30 min.
Further, in the step b, the adhesive is a quick-drying adhesive composition, and the quick-drying adhesive composition is prepared from the following materials in parts by weight: 80-120 parts of alpha-methyl cyanoacrylate, 2-4 parts of polymethyl methacrylate, 0.5-1.5 parts of liquid fluororubber, 0.5-1.5 parts of ABS ultrafine powder, 2-4 parts of dibutyl phthalate, 0.05-0.15 part of sulfur dioxide and 0.4-0.6 part of KH-550 coupling agent.
Further, in the step b, before the adhesive is coated on the surface of the lubricating oil tank support and the surface of the new rubber pad, the surface of the lubricating oil tank support and the surface of the new rubber pad are polished by sand paper, and then the surface is cleaned for 2-3 times by absolute ethyl alcohol.
Furthermore, the cross section of the mounting support is rectangular, mounting fastening holes are formed in the periphery of the mounting support, and the cross section of each mounting fastening hole is U-shaped.
Furthermore, the number of the arc-shaped bases and the number of the arc-shaped pressing plates are four, and one arc-shaped pressing plate is detachably arranged above one arc-shaped base.
Furthermore, the number of the arc-shaped bases and the number of the arc-shaped pressing plates are four, and all the arc-shaped pressing plates are uniformly arranged on the mounting support.
Furthermore, a limiting block is arranged beside the inner side part of each arc-shaped base.
Further, the quantity of screw hole, tight double-screw bolt in top is a plurality of, is provided with two screw holes respectively directly over every arc base, and two screw holes set up respectively in the both sides that correspond arc base, and the vertical setting of tight double-screw bolt in top is in a screw hole.
Further, the supporting vertical plate is vertically arranged on the mounting support, the supporting vertical plate is located in the middle of the mounting support, and the top plate is horizontally arranged on the supporting vertical plate.
The invention has the beneficial effects that: removing the old rubber pad; then coating adhesives on the surface of the lubricating oil tank bracket and the surface of the new rubber pad, and pre-installing the new rubber pad on the lubricating oil tank bracket for preliminary positioning; finally, the rubber pad repairing tool manufactured by the invention is used for improving the fit tightness of the new rubber pad and the lubricating oil tank bracket, so that the fit tightness of the new rubber pad and the lubricating oil tank bracket meets the requirement, and the repairing work of the rubber pad on the lubricating oil tank bracket is completed. The rubber pad repairing tool manufactured by the invention can quickly ensure the connection strength of a new rubber pad and the lubricating oil tank bracket, effectively improve the repairing effect and efficiency of the rubber pad on the lubricating oil tank bracket of the aero-engine, can also repair at normal temperature, and is beneficial to quick repairing and using of the aero-engine on site.
The rubber pad repairing tool manufactured by the invention comprises an installation support, an arc-shaped base, an arc-shaped pressing plate, a supporting vertical plate, a top plate and a jacking stud, when repairing, a lubricating oil tank support pre-installed with a new rubber pad is placed on the arc-shaped base, then the arc-shaped pressing plate is placed on the lubricating oil tank support, finally the jacking stud is screwed to move downwards, the lower end part of the jacking stud acts on the arc-shaped pressing plate, and the jacking stud provides a downward acting force for the arc-shaped pressing plate to improve the attaching tightness of the new rubber pad and the lubricating oil tank support. The rubber pad repairing tool can rapidly guarantee the connecting strength of a new rubber pad and a lubricating oil tank support, and pushes the stud to provide downward acting force for the arc-shaped pressing plate through quantitative control, so that the new rubber pad is connected with the lubricating oil tank support, the extension of the new rubber pad caused by overlarge pressure is avoided, and the rubber pad repairing effect and efficiency are improved.
Drawings
FIG. 1 is a schematic axial view of a rubber pad repair fixture;
FIG. 2 is a front view of a rubber mat repair fixture;
FIG. 3 is a schematic axial view of a rubber pad repairing tool during repair;
FIG. 4 is a front view of the rubber pad repairing tool during repair;
labeled as: the device comprises a mounting support 1, a mounting fastening hole 11, an arc-shaped base 2, an arc-shaped pressing plate 3, a supporting vertical plate 4, a top plate 5, a jacking stud 6, a limiting block 7, a lubricating oil tank support 8 and a new rubber pad 9.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 4, the method for repairing the rubber pad on the bracket of the lubricating oil tank of the aircraft engine comprises the following steps:
a. removing the old rubber pad on the lubricating oil tank bracket 8;
b. coating adhesives on the surface of the lubricating oil tank bracket 8 and the surface of the new rubber pad 9;
c. pre-installing a new rubber pad 9 on the lubricating oil tank support 8, and arranging a positioning pile of the new rubber pad 9 in a positioning hole of the lubricating oil tank support 8;
d. manufacturing a rubber pad repairing tool, wherein the rubber pad repairing tool comprises an installation support 1, an arc-shaped base 2, an arc-shaped pressing plate 3, a supporting vertical plate 4, a top plate 5 and a jacking stud 6;
the arc-shaped base 2 is arranged on the mounting support 1, the supporting vertical plate 4 is arranged on the mounting support 1, and the top plate 5 is arranged on the supporting vertical plate 4;
a threaded hole is formed in the top plate 5 and is arranged right above the arc-shaped base 2, the tightening stud 6 is vertically arranged in the threaded hole, and the tightening stud 6 can move up and down in the threaded hole;
the arc-shaped pressing plate 3 is detachably arranged above the arc-shaped base 2, and the lower end part of the jacking stud 6 can act on the arc-shaped pressing plate 3;
e. improve the laminating degree of tightness of new rubber pad 9 and lubricating oil tank support 8, specifically do: firstly, placing a lubricating oil tank support 8 pre-provided with a new rubber pad 9 on an arc-shaped base 2, then placing an arc-shaped pressing plate 3 on the lubricating oil tank support 8, finally screwing a jacking stud 6 to move downwards, enabling the lower end part of the jacking stud 6 to act on the arc-shaped pressing plate 3, and enabling the jacking stud 6 to provide a downward acting force for the arc-shaped pressing plate 3 to improve the fit tightness of the new rubber pad 9 and the lubricating oil tank support 8;
f. after the fit tightness of the new rubber pad 9 and the lubricating oil tank support 8 meets the requirement, the jacking stud 6 is screwed to move upwards, the lubricating oil tank support 8 is taken down from the rubber pad repairing tool, and therefore the rubber pad repairing work on the lubricating oil tank support 8 is completed.
In order to ensure the effect of removing the old rubber pad and improve the repairing effect of the new rubber pad 9, in the step a, the old rubber pad is removed by putting the lubricating oil tank bracket 8 into an organic solvent for soaking for less than 30min, wherein the organic solvent is an acetone solution, and the old rubber pad and a protective layer thereof are scrubbed and checked once every 5-10min during soaking until the old rubber pad and the protective layer thereof are completely removed.
In order to ensure the using effect of the adhesive, a preferred adhesive of the invention is a quick-drying adhesive composition, and the quick-drying adhesive composition is prepared from the following materials in parts by weight: 80-120 parts of alpha-methyl cyanoacrylate, 2-4 parts of polymethyl methacrylate, 0.5-1.5 parts of liquid fluororubber, 0.5-1.5 parts of ABS ultrafine powder, 2-4 parts of dibutyl phthalate, 0.05-0.15 part of sulfur dioxide and 0.4-0.6 part of KH-550 coupling agent. The liquid fluororubber, the ABS ultrafine powder and the dibutyl phthalate are used as the plasticizer together, so that the brittleness of the rubber layer can be improved. In order to further improve the bonding effect of the new rubber pad 9 and the lubricating oil tank support 8, before the surface of the lubricating oil tank support 8 and the surface of the new rubber pad 9 are coated with the adhesive, the surface of the lubricating oil tank support 8 and the surface of the new rubber pad 9 are firstly polished by abrasive paper, and then are cleaned for 2-3 times by absolute ethyl alcohol, so that the roughness of the surface of the lubricating oil tank support 8 and the surface of the new rubber pad 9 can be properly increased by the abrasive paper, and the bonding effect of the adhesive is improved. In order to improve the uniformity of the adhesive applied on the surface of the lubricating oil tank support 8 and the surface of the new rubber pad 9, the adhesive can be applied by a soft brush or a row pen, the adhesive layer applied with the adhesive is ensured to be uniform in thickness, after the adhesive is applied, the new rubber pad 9 is immediately pre-installed on the lubricating oil tank support 8, and a metal roller of 10kg is used for rolling for 10 times along a single direction.
In order to further improve the tight fit between the new rubber pad 9 and the lubricating oil tank bracket 8, in step e, the time for pushing the stud 6 to apply a downward acting force to the arc-shaped pressing plate 3 to improve the tight fit between the new rubber pad 9 and the lubricating oil tank bracket 8 should be not less than 24 h.
In order to fix the whole rubber pad repairing tool conveniently, an operator can perform rubber pad repairing operation conveniently, as shown in fig. 1 and 3, the cross section of the mounting support 1 is preferably rectangular, mounting fastening holes 11 are formed in the periphery of the mounting support 1, the cross section of each mounting fastening hole 11 is U-shaped, fixing bolts penetrate through the mounting fastening holes 11, and the mounting support 1 is fixedly arranged on the ground or other places for repairing operation.
In order to further improve the efficiency of repairing the rubber pads, as shown in fig. 1 to 4, the number of the arc-shaped bases 2 and the number of the arc-shaped pressing plates 3 are both multiple, and one arc-shaped pressing plate 3 is detachably arranged above one arc-shaped base 2, so that a set of rubber pad repairing tool can repair a plurality of rubber pads at the same time. In order to guarantee the balance of the whole rubber pad repairing tool, the operation is convenient, the repairing effect is guaranteed, the number of the arc-shaped bases 2 and the number of the arc-shaped pressing plates 3 are four, all the arc-shaped pressing plates 3 are evenly arranged on the mounting support 1, and one set of rubber pad repairing tool can simultaneously repair four rubber pads. In order to avoid the mutual influence of the rubber pads during repair, a limiting block 7 is arranged beside the inner side part of each arc-shaped base 2, the limiting blocks 7 play a limiting role, so that the mutual influence of adjacent rubber pads during repair can be prevented, a certain positioning effect can be achieved on the lubricating oil tank support 8, and the lubricating oil tank support 8 can be conveniently placed on the arc-shaped bases 2.
When the rubber pad is repaired, the pressing force for improving the attaching tightness of the new rubber pad 9 and the lubricating oil tank bracket 8 is the downward acting force of the jacking stud 6 on the arc-shaped pressing plate, the acting force cannot be too large or too small, not only the connection between the new rubber pad 9 and the lubricating oil tank bracket 8 needs to be ensured, but also the extension of the new rubber pad 9 caused by too large pressure needs to be avoided, the invention is obtained through a large number of experiments and practices of the inventor, as shown in figures 1 to 4, the number of the threaded holes and the jacking studs 6 is multiple, two threaded holes are respectively arranged right above each arc-shaped base 2, the two threaded holes are respectively arranged at two sides of the corresponding arc-shaped base 2, one jacking stud 6 is vertically arranged in one threaded hole, the jacking stud 6 is preferably a screw, the downward pressing moment of the jacking stud 6 can be converted into the acting moment according to the specification of the screw thread of the screw, the downward acting force of the jacking stud 6 on the arc-shaped pressing plate 3 can be quantitatively controlled, effectively guarantee the laminating degree of tightness of new rubber pad 9 and smooth oil tank support 8.
In order to guarantee the strength of the whole rubber pad repairing tool and facilitate the setting of each component, the vertical setting of the supporting vertical plate 4 is arranged on the mounting support 1, the supporting vertical plate 4 is located in the middle of the mounting support 1, and the top plate 5 is horizontally arranged on the supporting vertical plate 4.
In conclusion, the method for repairing the rubber pad on the lubricating oil tank bracket of the aero-engine can quickly ensure the connection strength of the new rubber pad 9 and the lubricating oil tank bracket 8, effectively improve the repairing effect and efficiency of the rubber pad on the lubricating oil tank bracket of the aero-engine, can also repair at normal temperature, and is beneficial to quick repairing and using of the aero-engine on site.
Claims (10)
1. A method for repairing a rubber pad on an aircraft engine lubricating oil tank support is characterized by comprising the following steps:
a. removing the old rubber pad on the lubricating oil tank bracket (8);
b. adhesives are respectively coated on the surface of the lubricating oil tank bracket (8) and the surface of the new rubber pad (9);
c. pre-installing a new rubber pad (9) on the lubricating oil tank support (8), and arranging a positioning pile of the new rubber pad (9) in a positioning hole of the lubricating oil tank support (8);
d. manufacturing a rubber pad repairing tool, wherein the rubber pad repairing tool comprises an installation support (1), an arc-shaped base (2), an arc-shaped pressing plate (3), a supporting vertical plate (4), a top plate (5) and a jacking stud (6);
the arc-shaped base (2) is arranged on the mounting support (1), the supporting vertical plate (4) is arranged on the mounting support (1), and the top plate (5) is arranged on the supporting vertical plate (4);
a threaded hole is formed in the top plate (5), the threaded hole is formed right above the arc-shaped base (2), the tightening stud (6) is vertically arranged in the threaded hole, and the tightening stud (6) can move up and down in the threaded hole;
the arc-shaped pressing plate (3) is detachably arranged above the arc-shaped base (2), and the lower end part of the jacking stud (6) can act on the arc-shaped pressing plate (3);
e. improve the laminating degree of tightness of new rubber pad (9) and smooth oil tank support (8), specifically do: firstly, a lubricating oil tank support (8) pre-installed with a new rubber pad (9) is placed on an arc-shaped base (2), then an arc-shaped pressing plate (3) is placed on the lubricating oil tank support (8), and finally a jacking stud (6) is screwed to move downwards, so that the lower end part of the jacking stud (6) acts on the arc-shaped pressing plate (3), and the jacking stud (6) provides a downward acting force for the arc-shaped pressing plate (3) to improve the joint tightness of the new rubber pad (9) and the lubricating oil tank support (8);
f. after the fit tightness of the new rubber pad (9) and the lubricating oil tank support (8) meets the requirement, the jacking stud (6) is screwed to move upwards, the lubricating oil tank support (8) is taken down from the rubber pad repairing tool, and therefore the rubber pad repairing work on the lubricating oil tank support (8) is completed.
2. A method of repairing a rubber pad used on an aircraft engine fuel tank mount as claimed in claim 1, wherein: in step a, the used rubber pad is removed by placing the lubricating oil tank bracket (8) in an organic solvent for less than 30 min.
3. A method of repairing a rubber pad used on an aircraft engine fuel tank mount as claimed in claim 1, wherein: in the step b, the adhesive is a quick-drying adhesive composition, and the quick-drying adhesive composition is prepared from the following materials in parts by weight: 80-120 parts of alpha-methyl cyanoacrylate, 2-4 parts of polymethyl methacrylate, 0.5-1.5 parts of liquid fluororubber, 0.5-1.5 parts of ABS ultrafine powder, 2-4 parts of dibutyl phthalate, 0.05-0.15 part of sulfur dioxide and 0.4-0.6 part of KH-550 coupling agent.
4. A method of repairing a rubber pad used on an aircraft engine fuel tank mount as claimed in claim 1, wherein: in the step b, before adhesives are coated on the surface of the lubricating oil tank support (8) and the surface of the new rubber pad (9), the surface of the lubricating oil tank support (8) and the surface of the new rubber pad (9) are polished by sand paper, and then the surface is cleaned for 2-3 times by absolute ethyl alcohol.
5. A method of repairing a rubber pad used on an aircraft engine fuel tank mount as claimed in claim 1, wherein: the cross section of the mounting support (1) is rectangular, mounting fastening holes (11) are formed in the periphery of the mounting support (1), and the cross section of each mounting fastening hole (11) is U-shaped.
6. A method of repairing a rubber pad used on an aircraft engine fuel tank mount as claimed in claim 1, wherein: the number of the arc-shaped bases (2) and the number of the arc-shaped pressing plates (3) are four, and one arc-shaped pressing plate (3) can be detachably arranged above one arc-shaped base (2).
7. A method of repairing a rubber pad used on an aircraft engine fuel tank mount as claimed in claim 6, wherein: the number of the arc-shaped bases (2) and the number of the arc-shaped pressing plates (3) are four, and all the arc-shaped pressing plates (3) are uniformly arranged on the mounting support (1).
8. A method of repairing a rubber pad used on an aircraft engine fuel tank mount as claimed in claim 6, wherein: a limiting block (7) is arranged beside the inner side part of each arc-shaped base (2).
9. A method of repairing a rubber pad used on an aircraft engine fuel tank mount as claimed in claim 6, wherein: the quantity of screw hole, tight double-screw bolt in top (6) is a plurality of, is provided with two screw holes respectively directly over every arc base (2), and two screw holes set up respectively in the both sides that correspond arc base (2), and the vertical setting in a screw hole of tight double-screw bolt in top (6).
10. A method of repairing a rubber pad used on an aircraft engine fuel tank mount as claimed in any one of claims 1 to 9, wherein: the supporting vertical plate (4) is vertically arranged on the mounting support (1), the supporting vertical plate (4) is located in the middle of the mounting support (1), and the top plate (5) is horizontally arranged on the supporting vertical plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110480367.8A CN113199781A (en) | 2021-04-30 | 2021-04-30 | Method for repairing rubber pad on lubricating oil tank bracket of aircraft engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110480367.8A CN113199781A (en) | 2021-04-30 | 2021-04-30 | Method for repairing rubber pad on lubricating oil tank bracket of aircraft engine |
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| CN113199781A true CN113199781A (en) | 2021-08-03 |
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| CN202110480367.8A Pending CN113199781A (en) | 2021-04-30 | 2021-04-30 | Method for repairing rubber pad on lubricating oil tank bracket of aircraft engine |
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