CN113236438A - Method for repairing lubricating oil leakage of aviation piston engine casing through bolt - Google Patents
Method for repairing lubricating oil leakage of aviation piston engine casing through bolt Download PDFInfo
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- CN113236438A CN113236438A CN202110644741.3A CN202110644741A CN113236438A CN 113236438 A CN113236438 A CN 113236438A CN 202110644741 A CN202110644741 A CN 202110644741A CN 113236438 A CN113236438 A CN 113236438A
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- bolt
- lubricating oil
- mounting groove
- piston engine
- oil leakage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F11/00—Arrangements of sealings in combustion engines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gasket Seals (AREA)
Abstract
The invention relates to a method for repairing lubricating oil leakage of a through bolt of a casing of an aviation piston engine, in particular to the field of engineering element or part sealing. The method comprises the following steps: s1: fixing the casing by using a fixing device; s2: processing a mounting groove with a preset size at the end part of a bolt hole on the inner wall of the casing; s3: a sealing ring matched with the mounting groove is additionally arranged in the mounting groove; s4: and a bolt matched with the sealing ring is additionally arranged in the sealing ring. The scheme solves the technical problem of repairing the leakage of the lubricating oil of the through bolt of the aviation piston engine, and is suitable for repairing the leakage of the lubricating oil of the through bolt of the aviation piston engine.
Description
Technical Field
The invention relates to the field of engineering element or part sealing, in particular to a method for repairing lubricating oil leakage of a through bolt of a casing of an aviation piston engine.
Background
The times of oil leakage faults of the Lycorning engine at the through bolt holes of the casing are gradually increased along with the accumulation of the service time. The O-shaped sealing ring is arranged after the circular groove is processed at the through bolt hole of the casing, so that the fault can be effectively prevented.
The Lycorning engine casing consists of a left half and a right half, wherein the left half and the right half are mainly installed with the casing through a plurality of through bolts
The interference fit of the holes is connected into a whole, the bolt and the installation groove of the bolt slightly move relatively in the actual operation engineering of the engine, so that abrasion is generated, along with the accumulation of the service life of the engine, the abrasion can exceed a certain standard and damage the interference fit of the bolt and the installation groove of the bolt, and lubricating oil can seep out from a gap between the bolt and the installation groove.
For repairing the oil leakage of the casing, under the condition that the inner wall of the mounting groove is not deformed, the through bolt with an enlarged size can be used for achieving the purpose of interference fit,
however, this method has the disadvantages that the selection of the bolt is difficult, the outer diameter of the bolt is too small to achieve the interference purpose, and the bolt is too large to cause the danger that the bolt extrudes the casing to crack. Therefore, a new repairing method for repairing the oil leakage of the casing is urgently needed.
Disclosure of Invention
The invention aims to solve the technical problem of repairing the leakage of lubricating oil of the through bolt of the aviation piston engine.
The technical scheme for solving the technical problems is as follows: a method for repairing lubricating oil leakage of a through bolt of a casing of an aviation piston engine comprises the following steps:
s1: fixing the casing by using a fixing device;
s2: processing a mounting groove S3 with a preset size at the end part of the bolt hole on the inner wall of the casing: a sealing ring matched with the mounting groove is additionally arranged in the mounting groove;
s4: and a bolt matched with the sealing ring is additionally arranged in the sealing ring.
The invention has the beneficial effects that: after the sealing ring is additionally arranged, the elastic deformation of the sealing ring can enable the bolt to be tightly attached to the sealing ring, so that the aim of sealing lubricating oil in the casing is fulfilled; the method can not cause installation damage to the casing after one-time processing, and only the sealing ring is replaced when the casing is assembled every time, so that the economical efficiency is good.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, the method also includes step S5: and detecting the stability of the sealing ring.
Further, the step S5 includes the steps of:
s51: a motor is additionally arranged in the fixing device and fixed on one side of the mounting groove;
s52: and operating the motor, and stopping operation when the electric quantity of the motor reaches the electricity utilization preset value.
The beneficial effect who adopts above-mentioned further scheme is, fix the motor in the one side back of mounting groove, and the motor motion, output shaft and sealing washer contact, and the motor contacts the sealing washer and receives the resistance, and the correct back of installing of sealing washer, the resistance that the motor received reaches the default, and the motor power consumption also increases along with the increase of resistance this moment, combines the relative position of motor operating duration and sealing washer and mounting groove to obtain the installation condition of sealing washer. Further, the method also includes step S6: and sealing and detecting the mounting groove.
Further, the step S6 includes the steps of:
s61: an air box and an air guide pipe are additionally arranged in the fixing device;
s62: connecting an induced draft pipe with an air box;
s63: aligning an air outlet of the induced draft pipe to a sealing ring provided with a bolt;
s64: and opening the air box and detecting the air flow at one side of the sealing ring away from the induced air pipe.
Adopt above-mentioned further scheme's beneficial effect to be, detect that the sealing washer keeps away from the air current of induced duct one side then prove that the leakproofness reaches the preset standard when normal range, when detecting the air current of keeping away from induced duct one side in this embodiment, usable vertical note tests, and the note is motionless then proves sealed good.
Further, in step S1, fixing device includes base, support and buffer, the support includes that 2 set up respectively the U-shaped vertical frame at base both ends, the U line vertical frame with the mounting groove size corresponds, the position of U-shaped vertical frame with bolt hole end position corresponds, buffer sets up the U-shaped vertical frame is close to the one side at base center.
The beneficial effects of adopting above-mentioned further scheme are that, the back is corresponded with the mounting groove size of machine casket to the vertical frame of U-shaped, when processing the mounting groove to the machine casket, can not influenced by the vertical frame of U-shaped, simultaneously, can avoid the machine casket to produce the displacement in the course of working, and the cost has been practiced thrift to the maximum material that has reduced fixing device simultaneously.
Further, in step S2, the mounting groove is a circular groove, and the preset size is, the aperture: 20.55-20.60 mm, wherein the hole depth is as follows: and 1.21-1.39 mm.
Further, in step S2, the surface roughness of the mounting groove is not more than 1.6 μm.
Further, in step S3, the seal ring is a rubber seal ring.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a flowchart of a method of an embodiment of the method for repairing leakage of lubricating oil of a through bolt of an aviation piston engine casing.
Fig. 2 is a schematic structural diagram of an aviation piston engine case according to the invention.
Fig. 3 is a schematic structural diagram of a right half casing of the aviation piston engine casing of the invention.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
The examples are substantially as shown in figures 1 to 3:
the method for repairing lubricating oil leakage of the through bolt of the casing of the aviation piston engine in the embodiment comprises the following steps:
s1: fixing the casing by using a fixing device;
s2: processing a mounting groove with a preset size at the end part of a bolt hole on the inner wall of the casing;
s3: a sealing ring matched with the mounting groove is additionally arranged in the mounting groove;
s4: and a bolt matched with the sealing ring is additionally arranged in the sealing ring.
The invention has the beneficial effects that: after the sealing ring is additionally arranged, the elastic deformation of the sealing ring can enable the bolt to be tightly attached to the sealing ring, so that the aim of sealing lubricating oil in the casing is fulfilled; the method can not cause installation damage to the casing after one-time processing, and only the sealing ring is replaced when the casing is assembled every time, so that the economical efficiency is good.
On the basis of the technical scheme, the invention can be further improved as follows.
Optionally, in some other embodiments, the method further includes step S5: and detecting the stability of the sealing ring.
Optionally, in some other embodiments, step S5 includes the following steps:
s51: a motor is additionally arranged in the fixing device, the motor in the embodiment can be a linear driver, and specifically can be a DGC-K-32-950-PPV-A-G driver, and the motor is fixed on one side of the mounting groove;
s52: and operating the motor, and stopping the operation when the electric quantity of the motor reaches the electricity utilization preset value, wherein the electricity utilization preset value in the embodiment can be 2A.
After the motor is fixed on one side of the mounting groove, the motor moves, the output shaft is in contact with the sealing ring, the motor is in contact with the sealing ring to receive resistance, after the sealing ring is correctly mounted, the resistance received by the motor reaches a preset value, the power consumption of the motor is increased along with the increase of the resistance, and the mounting condition of the sealing ring is obtained by combining the operation time of the motor and the relative position of the sealing ring and the mounting groove.
Optionally, in some other embodiments, the method further includes step S6: and sealing and detecting the mounting groove.
Optionally, in some other embodiments, step S6 includes the following steps:
s61: an air box and an air guide pipe are additionally arranged in the fixing device;
s62: connecting an induced draft pipe with an air box;
s63: aligning an air outlet of the induced draft pipe to a sealing ring provided with a bolt;
s64: and opening the air box and detecting the air flow at one side of the sealing ring away from the induced air pipe.
When detecting the air current that the induced duct one side was kept away from to the sealing washer then proves that the leakproofness reaches preset standard when normal scope, when detecting the air current of keeping away from induced duct one side in this embodiment, usable vertical note tests, and the note is motionless then proves sealed good.
Optionally, in some other embodiments, in step S1, the fixing device includes a base, a support and a buffer device, the support includes 2U-shaped vertical frames respectively disposed at two ends of the base, the U-shaped vertical frame corresponds to the size of the mounting groove, the position of the U-shaped vertical frame corresponds to the position of the end of the bolt hole, the buffer device is disposed on a surface of the U-shaped vertical frame near the center of the base, and the buffer device in this embodiment is rubber.
After the U-shaped vertical frame corresponds to the mounting groove of the casing in size, the U-shaped vertical frame can not be influenced by the U-shaped vertical frame when the mounting groove is machined in the casing, meanwhile, the casing can be prevented from being displaced in the machining process, meanwhile, the material consumption of the fixing device is reduced to the maximum extent, and the cost is saved.
Optionally, in some other embodiments, in step S2, the mounting groove is a circular groove, and the preset size is, the aperture: 20.55-20.60 mm, wherein the hole depth is as follows: and 1.21-1.39 mm.
Optionally, in some other embodiments, in step S2, the surface roughness of the mounting groove is not greater than 1.6 μm.
Optionally, in some other embodiments, in step S3, the sealing ring is a rubber sealing ring.
It should be noted that the above embodiments are product embodiments corresponding to the above method embodiments, and for the description of each structural device and the optional implementation in this embodiment, reference may be made to the corresponding description in the above method embodiments, and details are not repeated herein.
The reader should understand that in the description of this specification, reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A method for repairing lubricating oil leakage of a through bolt of a casing of an aviation piston engine is characterized by comprising the following steps:
s1: fixing the casing by using a fixing device;
s2: processing a mounting groove with a preset size at the end part of a bolt hole on the inner wall of the casing;
s3: a sealing ring matched with the mounting groove is additionally arranged in the mounting groove;
s4: and a bolt matched with the sealing ring is additionally arranged in the sealing ring.
2. The method for repairing lubricating oil leakage of the through bolt of the aviation piston engine case according to claim 1, wherein the method comprises the following steps: further comprising step S5: and detecting the stability of the sealing ring.
3. The method for repairing lubricating oil leakage of the through bolt of the aviation piston engine case according to claim 2, wherein the method comprises the following steps:
the step S5 includes the steps of:
s51: a motor is additionally arranged in the fixing device and fixed on one side of the mounting groove;
s52: and operating the motor, and stopping operation when the electric quantity of the motor reaches the electricity utilization preset value.
4. The method for repairing lubricating oil leakage of the through bolt of the aviation piston engine case according to claim 1, wherein the method comprises the following steps: further comprising step S6: and sealing and detecting the mounting groove.
5. The aviation piston engine case through bolt lubricating oil leakage repair method of claim 4, wherein:
the step S6 includes the steps of:
s61: an air box and an air guide pipe are additionally arranged in the fixing device;
s62: connecting an induced draft pipe with an air box;
s63: aligning an air outlet of the induced draft pipe to a sealing ring provided with a bolt;
s64: and opening the air box and detecting the air flow at one side of the sealing ring away from the induced air pipe.
6. The method for repairing lubricating oil leakage of the through bolt of the aviation piston engine case according to claim 1, wherein the method comprises the following steps: in step S1, fixing device includes base, support and buffer, the support includes that 2 set up respectively the U-shaped vertical frame at base both ends, the U line vertical frame with the mounting groove size corresponds, the position of U-shaped vertical frame with bolt hole tip position corresponds, buffer sets up the U-shaped vertical frame is close to the one side at base center.
7. The method for repairing lubricating oil leakage of the through bolt of the aviation piston engine case according to claim 1, wherein the method comprises the following steps: in step S2, the mounting groove is a circular groove, and the preset size is as follows: 20.55-20.60 mm, wherein the hole depth is as follows: and 1.21-1.39 mm.
8. The method for repairing lubricating oil leakage of the through bolt of the aviation piston engine case according to claim 1, wherein the method comprises the following steps: in step S2, the surface roughness of the mounting groove is not more than 1.6 μm.
The method for repairing lubricating oil leakage of the through bolt of the aviation piston engine case according to claim 1, wherein the method comprises the following steps: in step S3, the seal ring is a rubber seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110644741.3A CN113236438B (en) | 2021-06-09 | 2021-06-09 | Method for repairing lubricating oil leakage of aviation piston engine casing through bolt |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110644741.3A CN113236438B (en) | 2021-06-09 | 2021-06-09 | Method for repairing lubricating oil leakage of aviation piston engine casing through bolt |
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| Publication Number | Publication Date |
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| CN113236438A true CN113236438A (en) | 2021-08-10 |
| CN113236438B CN113236438B (en) | 2023-03-28 |
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| CN202110644741.3A Active CN113236438B (en) | 2021-06-09 | 2021-06-09 | Method for repairing lubricating oil leakage of aviation piston engine casing through bolt |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020021224A (en) * | 2000-09-14 | 2002-03-20 | 이계안 | Engine block assembly |
| CN201347815Y (en) * | 2008-12-26 | 2009-11-18 | 重庆宗申发动机制造有限公司 | Sealing mechanism for preventing a screw bolt from leaking oil |
| CN202645768U (en) * | 2012-05-08 | 2013-01-02 | 安徽华菱汽车有限公司 | Engine and cylinder cover housing thereof |
| CN202732150U (en) * | 2012-09-12 | 2013-02-13 | 潍柴动力股份有限公司 | Sealing structure |
| CN206513827U (en) * | 2017-01-23 | 2017-09-22 | 中国航发沈阳发动机研究所 | A kind of casing hole sealing structure |
| CN212177287U (en) * | 2020-11-20 | 2020-12-18 | 山东久丰动力科技有限公司 | Cylinder cover with good sealing performance |
-
2021
- 2021-06-09 CN CN202110644741.3A patent/CN113236438B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020021224A (en) * | 2000-09-14 | 2002-03-20 | 이계안 | Engine block assembly |
| CN201347815Y (en) * | 2008-12-26 | 2009-11-18 | 重庆宗申发动机制造有限公司 | Sealing mechanism for preventing a screw bolt from leaking oil |
| CN202645768U (en) * | 2012-05-08 | 2013-01-02 | 安徽华菱汽车有限公司 | Engine and cylinder cover housing thereof |
| CN202732150U (en) * | 2012-09-12 | 2013-02-13 | 潍柴动力股份有限公司 | Sealing structure |
| CN206513827U (en) * | 2017-01-23 | 2017-09-22 | 中国航发沈阳发动机研究所 | A kind of casing hole sealing structure |
| CN212177287U (en) * | 2020-11-20 | 2020-12-18 | 山东久丰动力科技有限公司 | Cylinder cover with good sealing performance |
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| Publication number | Publication date |
|---|---|
| CN113236438B (en) | 2023-03-28 |
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