CN111720216A - Method for assembling engine device - Google Patents
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- CN111720216A CN111720216A CN202010588068.1A CN202010588068A CN111720216A CN 111720216 A CN111720216 A CN 111720216A CN 202010588068 A CN202010588068 A CN 202010588068A CN 111720216 A CN111720216 A CN 111720216A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/06—Arrangements of bearings; Lubricating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
- G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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Abstract
The present disclosure provides a method of assembling an engine assembly. The assembling method comprises the following steps: calibrating a first pair of sites on the end face of the connecting end of the first casing, and establishing a first coordinate system by taking the first pair of sites as an origin; calibrating a second alignment point on the end face of the connecting end of the second casing, and establishing a second coordinate system on the end face of the connecting end of the second casing by taking the second alignment point as an origin; and when the coordinate of the opening center of the first oil way is equal to the coordinate of the opening center of the second oil way, matching the end face of the connecting end of the first casing with the end face of the connecting end of the second casing. The present disclosure can avoid leakage of lubricating oil.
Description
Technical Field
The disclosure relates to the technical field of engines, and particularly relates to an assembling method of an engine device.
Background
As a core component of an aircraft, an engine is a device that can convert other forms of energy into mechanical energy.
The engine is provided with an oil pipe for continuously delivering a sufficient amount of lubricating oil to the friction surfaces of the moving parts to cool the moving parts while the engine is operating, and at the same time, the lubricating oil forms an oil film between the friction surfaces, so that the frictional resistance is reduced, the power consumption is reduced, and the wear of the parts is reduced, thereby improving the reliability and the durability of the engine operation. However, the lubricating oil in the conventional engine is liable to leak.
It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure, and thus may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
An object of the present disclosure is to provide an assembling method of an engine apparatus capable of avoiding leakage of lubricating oil.
According to an aspect of the present disclosure, there is provided an assembling method of an engine apparatus including a first casing and a second casing each having a connection end, an end surface of the connection end of the first casing being capable of mating with an end surface of the connection end of the second casing, the first casing including a first oil passage having an end opening toward the second casing, the second casing including a second oil passage having an end opening toward the first casing, the second oil passage being capable of connecting with the first oil passage, the assembling method including:
calibrating a first pair of location points on the end face of the connecting end of the first casing, and establishing a first coordinate system on the end face of the connecting end of the first casing by taking the first pair of location points as an origin;
calibrating a second alignment point on the end face of the connecting end of the second casing, and establishing a second coordinate system on the end face of the connecting end of the second casing by taking the second alignment point as an origin, wherein when the end face of the connecting end of the first casing is matched with the end face of the connecting end of the second casing, the first alignment point is superposed with the second alignment point, and a transverse axis of the first coordinate system is superposed with a transverse axis of the second coordinate system;
and acquiring the coordinate of the center of the opening of the first oil path through the first coordinate system, acquiring the coordinate of the center of the opening of the second oil path through the second coordinate system, and matching the end face of the connecting end of the first casing with the end face of the connecting end of the second casing when the coordinate of the center of the opening of the first oil path is equal to the coordinate of the center of the opening of the second oil path.
In an exemplary embodiment of the present disclosure, the number of the first oil passages and the second oil passages is plural, the plural first oil passages may be connected to the plural second oil passages in a one-to-one correspondence, the obtaining the coordinates of the centers of the openings of the first oil passages through the first coordinate system, and the obtaining the coordinates of the centers of the openings of the second oil passages through the second coordinate system includes:
acquiring coordinates of centers of openings of the plurality of first oil passages through the first coordinate system, and acquiring coordinates of centers of openings of the plurality of second oil passages through the second coordinate system;
when the coordinates of the center of the opening of the first oil passage and the coordinates of the center of the opening of the second oil passage are equal, fitting the end surface of the connection end of the first casing and the end surface of the connection end of the second casing includes:
when the coordinates of the centers of the openings of the plurality of first oil passages are equal to the coordinates of the centers of the openings of the plurality of second oil passages in a one-to-one correspondence, the end face of the connecting end of the first casing is fitted to the end face of the connecting end of the second casing.
In an exemplary embodiment of the present disclosure, after the end surface of the connection end of the first casing and the end surface of the connection end of the second casing are mated, the assembling method further includes:
and determining the opening at the other end of each second oil path correspondingly communicated with the opening at the other end of each first oil path.
In an exemplary embodiment of the present disclosure, after determining the opening of the other end of each of the second oil passages that correspondingly communicates with the opening of the other end of each of the first oil passages, the assembling method further includes:
and determining a model drawing of the engine device, and marking the opening at the other end of each first oil path and the opening at the other end of each second oil path correspondingly communicated with the opening at the other end of each first oil path.
In an exemplary embodiment of the present disclosure, the first oil passage and the second oil passage in the model diagram are both straight oil passages.
In an exemplary embodiment of the present disclosure, after the end surface of the connection end of the first casing and the end surface of the connection end of the second casing are mated, the assembling method further includes:
and carrying out air tightness detection on the connected first oil way and the second oil way.
In an exemplary embodiment of the present disclosure, after the airtightness detection is performed on the first oil passage and the second oil passage, the assembling method further includes:
and detecting the flow of the connected first oil path and the second oil path.
In an exemplary embodiment of the present disclosure, the assembling method further includes:
and carrying out flaw detection on the first oil way and the second oil way.
In an exemplary embodiment of the present disclosure, performing flaw detection on the first oil passage and the second oil passage includes:
and carrying out flaw detection on the first oil way and the second oil way by adopting electronic computed tomography.
In an exemplary embodiment of the disclosure, the first oil path includes a main oil path and a conduit, which are connected to each other, a nozzle of the conduit, which is away from the main oil path, is an opening at one end of the first oil path, and obtaining coordinates of a center of the opening of the first oil path through the first coordinate system includes:
and acquiring the coordinate of the center of the pipe far away from the pipe orifice of the main body oil way through the first coordinate system, and taking the coordinate as the coordinate of the opening center of the first oil way.
In the assembling method of the engine apparatus of the present disclosure, in the assembling process, the coordinates of the opening center of the first oil passage and the coordinates of the opening center of the second oil passage are obtained, and when the coordinates of the opening center of the first oil passage and the coordinates of the opening center of the second oil passage are equal, the end face of the connection end of the first casing and the end face of the connection end of the second casing are fitted. When the end face of the connecting end of the first casing is matched with the end face of the connecting end of the second casing, the first contraposition point and the second contraposition point are overlapped, and the transverse axis of the first coordinate system is overlapped with the transverse axis of the second coordinate system, so that the opening centers of the first oil way and the second oil way with the same coordinates can be aligned, the first oil way and the second oil way are connected under the condition of alignment, and the leakage of lubricating oil caused by poor connection of the first oil way and the second oil way is avoided.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The above and other features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty. In the drawings:
FIG. 1 is a schematic illustration of a first case in a method of assembling an engine assembly according to an embodiment of the present disclosure;
FIG. 2 is a flow chart of a method of assembling an engine assembly of an embodiment of the present disclosure;
FIG. 3 is a diagram of a model identified in a method of assembling an engine assembly according to an embodiment of the present disclosure;
FIG. 4 is a diagram of yet another model identified in a method of assembling an engine assembly according to an embodiment of the present disclosure;
fig. 5 is a model diagram of a duct included determined in the method of assembling an engine apparatus according to the embodiment of the present disclosure.
In the figure: 1. a first case; 2. a first end face; 3. a first oil passage; 301. a main body oil passage; 302. a conduit; 4. a second case; 401. a sub-housing; 5. a second oil passage; 6. and (4) a boundary point.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, etc. In other instances, well-known technical solutions have not been shown or described in detail to avoid obscuring aspects of the present disclosure.
The terms "a", "an", "the" and "at least one" are used to indicate the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.
The disclosed embodiments provide a method of assembling an engine apparatus. The engine assembly includes a first case and a second case. As shown in fig. 1, the first casing 1 has a connection end. The second case also has a connecting end. The present disclosure uses the end surface of the connecting end of the first casing 1 as the first end surface 2, and the first end surface 2 can be matched with the end surface of the connecting end of the second casing, that is, the first end surface 2 can be attached to the end surface of the connecting end of the second casing, so that the first casing 1 and the second casing are connected. The first casing includes a first oil passage 3. The first oil path 3 may be located in the cavity of the first casing 1, or may be formed in a solid area of the first casing 1. An opening at one end of the first oil passage 3 faces the second casing. The second casing includes a second oil passage. The second oil path may be located in a cavity of the second casing, or may be formed in a solid area of the second casing. The opening of the second oil path faces the first casing 1. The second oil passage can be connected to the first oil passage 3 so that the second oil passage communicates with the first oil passage 3. In an embodiment of the present disclosure, an opening of one end of the first oil path 3 may be flush with the first end surface 2, an opening of one end of the second oil path may be flush with an end surface of the connection end of the second casing, and the first oil path 3 and the second oil path are in direct contact when the second oil path is connected to the first oil path 3.
As shown in fig. 2, the method of assembling the engine apparatus may include:
step S110, a first alignment point is calibrated on the end face of the connection end of the first casing, and a first coordinate system is established on the end face of the connection end of the first casing with the first alignment point as an origin.
Step S120, calibrating a second alignment point on the end face of the connection end of the second casing, and establishing a second coordinate system on the end face of the connection end of the second casing with the second alignment point as an origin, wherein when the end face of the connection end of the first casing and the end face of the connection end of the second casing are mated, the first alignment point and the second alignment point are overlapped, and a horizontal axis of the first coordinate system and a horizontal axis of the second coordinate system are overlapped.
Step S130, obtaining coordinates of the opening center of the first oil path through the first coordinate system, obtaining coordinates of the opening center of the second oil path through the second coordinate system, and matching the end surface of the connection end of the first casing with the end surface of the connection end of the second casing when the coordinates of the opening center of the first oil path and the coordinates of the opening center of the second oil path are equal.
In the assembling method of the engine apparatus according to the embodiment of the present disclosure, in the assembling process, the coordinates of the center of the opening of the first oil passage and the coordinates of the center of the opening of the second oil passage are acquired, and when the coordinates of the center of the opening of the first oil passage and the coordinates of the center of the opening of the second oil passage are equal, the end surface of the connection end of the first casing and the end surface of the connection end of the second casing are fitted. When the end face of the connecting end of the first casing is matched with the end face of the connecting end of the second casing, the first contraposition point and the second contraposition point are overlapped, and the transverse axis of the first coordinate system is overlapped with the transverse axis of the second coordinate system, so that the opening centers of the first oil way and the second oil way with the same coordinates can be aligned, the first oil way and the second oil way are connected under the condition of alignment, and the leakage of lubricating oil caused by poor connection of the first oil way and the second oil way is avoided.
The following describes in detail the respective parts of the method of assembling the engine apparatus according to the embodiment of the present disclosure:
the engine assembly may be an aircraft turboshaft engine. The aero turboshaft engine may include a particle separator. The particle separator may include the first casing and the second casing. The first casing may have a first cavity therein. The first cavity may be provided with an opening communicating with the outside. The opening of the first cavity is the connecting end of the first casing. A second cavity may be disposed within the second case. The second cavity may be provided with an opening communicating with the outside. The opening of the second cavity is the connecting end of the second casing.
The number of the first oil passages and the number of the second oil passages can be the same and are multiple, and the first oil passages can be connected with the second oil passages in a one-to-one correspondence mode. The first oil path may include two opposite ends, and an opening at one end of the first oil path may be flush with an end surface of the connecting end of the first casing, or may not be flush with the end surface. Taking the first oil path located in the first cavity of the first casing as an example, the first casing further has a channel communicated with the outside, and an opening at the other end of the first oil path can be exposed through the channel of the first casing. The second oil path may include two opposite ends, and an opening at one end of the second oil path may be flush with an end surface of the connecting end of the second casing, or may not be flush. Taking the second oil path located in the second cavity of the second casing as an example, the second casing further has a channel communicated with the outside, and an opening at the other end of the second oil path can be exposed through the channel of the second casing.
In step S110, a first pair of points is calibrated on the end surface of the connection end of the first casing, and a first coordinate system is established on the end surface of the connection end of the first casing with the first pair of points as an origin.
The first docking point may be located anywhere on the first end face. The first coordinate system is a rectangular coordinate system which comprises a horizontal axis and a vertical axis which are perpendicular to each other.
In step S120, a second docking point is calibrated on the end face of the connection end of the second casing, and a second coordinate system is established on the end face of the connection end of the second casing with the second docking point as an origin, where when the end face of the connection end of the first casing and the end face of the connection end of the second casing are mated, the first docking point and the second docking point are coincident, and a horizontal axis of the first coordinate system and a horizontal axis of the second coordinate system are coincident.
The second docking point may be located at any position on the second end face. The second coordinate system is a rectangular coordinate system which comprises a horizontal axis and a vertical axis which are perpendicular to each other.
In step S130, coordinates of the opening center of the first oil passage are acquired by the first coordinate system, coordinates of the opening center of the second oil passage are acquired by the second coordinate system, and when the coordinates of the opening center of the first oil passage and the coordinates of the opening center of the second oil passage are equal, the end surface of the connection end of the first casing and the end surface of the connection end of the second casing are mated.
Taking the example that the cross sections of the first oil way and the second oil way are both circular, the coordinate of the opening center of the first oil way is the circle center coordinate of the cross section of the first oil way, and the coordinate of the opening center of the second oil way is the circle center coordinate of the cross section of the second oil way. The coordinates of the center of the opening of the first oil passage and the coordinates of the center of the opening of the second oil passage are equal when the end face of the connecting end of the first casing and the end face of the connecting end of the second casing are mated, and the first and second loci coincide and the horizontal axis of the first and second coordinate systems coincide when the end face of the connecting end of the first casing and the end face of the connecting end of the second casing are mated, so that the centers of the opening of the first and second oil passages with equal coordinates can be aligned. In addition, the coordinate of the opening center of the first oil passage is the coordinate of the orthographic projection of the opening center of the first oil passage on the plane of the first coordinate system, and the coordinate of the opening center of the second oil passage is the coordinate of the orthographic projection of the opening center of the second oil passage on the plane of the second coordinate system. In an embodiment of the present disclosure, the first oil passage may include a main body oil passage and a guide pipe connected to each other. The pipe orifice of the guide pipe, which is far away from the main body oil way, is an opening at one end of the first oil way. Acquiring coordinates of the opening center of the first oil passage by the first coordinate system includes: and acquiring the coordinate of the center of the pipe orifice of the guide pipe far away from the main oil path through a first coordinate system, and taking the coordinate as the coordinate of the opening center of the first oil path.
Taking the number of the first oil passages and the number of the second oil passages as an example, step S130 may include: acquiring coordinates of the centers of the openings of the plurality of first oil passages through a first coordinate system, and acquiring coordinates of the centers of the openings of the plurality of second oil passages through a second coordinate system; when the coordinates of the centers of the openings of the plurality of first oil passages are equal to the coordinates of the centers of the openings of the plurality of second oil passages in a one-to-one correspondence, the end face of the connecting end of the first casing is fitted to the end face of the connecting end of the second casing. Wherein, the coordinates of the opening centers of any two first oil passages are different. The coordinates of the centers of the openings of any two second oil passages are different. The coordinates of the centers of the openings of the plurality of first oil passages are equal to the coordinates of the centers of the openings of the plurality of second oil passages in a one-to-one correspondence, that is, for the coordinates (x, y) of the center of the opening of any one of the plurality of first oil passages, the coordinates of the center of the opening of one of the plurality of second oil passages is equal to the coordinates (x, y).
After the end surface of the connection end of the first casing and the end surface of the connection end of the second casing are matched, the assembling method according to the embodiment of the present disclosure may further include: and determining the opening at the other end of each second oil path correspondingly communicated with the opening at the other end of each first oil path. Further, after determining the opening at the other end of each second oil path correspondingly communicated with the opening at the other end of each first oil path, the assembling method according to the embodiment of the present disclosure may further include: and determining a model drawing of the engine device, and marking the opening at the other end of each first oil path and the opening at the other end of each second oil path correspondingly communicated with the opening at the other end of each first oil path.
As shown in fig. 3, in the model diagram, the first oil path 3 in the first casing 1 and the second oil path 5 in the second casing 4 are both straight line oil paths. Taking the example that the first oil path 3 and the second oil path 5 are connected by the conduit 302, the determined model diagram is as shown in fig. 5, the present disclosure may use the opening center of the first oil path 3 and the opening center of the second oil path 5 as the boundary point 6, and the coordinate of the acquired opening center is the coordinate of the acquired boundary point 6. Wherein, in the model diagram shown in fig. 5, the first oil passage 3 includes a main body oil passage 301 and a conduit 302 connected to each other; the orifice of the conduit 302 away from the main body oil passage 301 is an opening at one end of the first oil passage 3, that is, the center of the orifice of the conduit 302 away from the main body oil passage 301 is the aforementioned boundary point 6. In the engine device, the arrangement of the lubricating oil circuit is complex, and when the lubricating oil leaks, maintenance personnel are often troubled by the complicated oil circuit and do not know how to troubleshoot. Through the model diagram prepared by the embodiment of the disclosure, the complex spatial distribution of the oil circuit is abstracted into a simple and clear two-dimensional model, which is beneficial for maintenance personnel to maintain the engine device when the lubricating oil leaks. In addition, the engine assembly can be designed to be leak proof by engineers in accordance with the configuration shown in FIG. 5. Specifically, the conduit 302 and the sealing elements and the sealing surfaces on the conduit 302 are ensured to meet the design requirements and have no damage, and meanwhile, the sealing elements and the sealing surfaces are ensured to be attached; the rubber ring used for sealing is made of rubber materials which are not easy to age and insensitive to time efficiency, and can be corroded by lubricating oil; when the conduit 302 is installed, the conduit 302 is polished to avoid the conduit 302 from scratching the rubber ring.
The first casing or the second casing may include a plurality of sub-casings. As shown in fig. 4, the second casing 4 includes a plurality of sub-casings 401, each of the plurality of sub-casings 401 includes a second oil path 5, and the second oil paths 5 of the plurality of sub-casings 401 are sequentially communicated.
In other embodiments of the present disclosure, after the end surface of the connecting end of the first casing and the end surface of the connecting end of the second casing are matched, the assembling method of the embodiments of the present disclosure further includes: and detecting the air tightness of the first oil path and the second oil path. Further, after the airtightness of the first oil path and the second oil path is detected, the assembling method according to the embodiment of the present disclosure further includes: and detecting the flow of the first oil path and the second oil path. And in the flow detection process, lubricating oil is introduced into the communicated first oil way and the second oil way, and the flow of the lubricating oil is detected. The assembly method of the disclosed embodiment further comprises: and carrying out flaw detection on the materials of the first casing, the second casing, the first oil way and the second oil way so as to detect whether the materials of the first oil way and the second oil way have defects such as holes, cracks, sand holes and the like. The present disclosure may employ an electronic Computed Tomography (CT) to perform flaw detection on the materials of the first oil path and the second oil path, and of course, X-ray and fluorescence may also be used in combination. In addition, the assembling method of the embodiment of the present disclosure further includes: whether the first oil passage and the second oil passage are blocked is detected. The present disclosure may check whether foreign objects such as accretions, welding accretions, residual sand exist in the first oil passage and the second oil passage by a bore finder or electronic Computed Tomography (CT) to determine the clogging condition.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
Claims (10)
1. A method of assembling an engine apparatus including a first casing and a second casing each having a connection end, an end face of the connection end of the first casing being engageable with an end face of the connection end of the second casing, the first casing including a first oil passage having an end opening toward the second casing, the second casing including a second oil passage having an end opening toward the first casing, the second oil passage being connectable with the first oil passage, the method comprising:
calibrating a first pair of location points on the end face of the connecting end of the first casing, and establishing a first coordinate system on the end face of the connecting end of the first casing by taking the first pair of location points as an origin;
calibrating a second alignment point on the end face of the connecting end of the second casing, and establishing a second coordinate system on the end face of the connecting end of the second casing by taking the second alignment point as an origin, wherein when the end face of the connecting end of the first casing is matched with the end face of the connecting end of the second casing, the first alignment point is superposed with the second alignment point, and a transverse axis of the first coordinate system is superposed with a transverse axis of the second coordinate system;
and acquiring the coordinate of the center of the opening of the first oil path through the first coordinate system, acquiring the coordinate of the center of the opening of the second oil path through the second coordinate system, and matching the end face of the connecting end of the first casing with the end face of the connecting end of the second casing when the coordinate of the center of the opening of the first oil path is equal to the coordinate of the center of the opening of the second oil path.
2. The method of assembling an engine apparatus according to claim 1, wherein the number of the first oil passages and the second oil passages is plural, the plural first oil passages are connectable to the plural second oil passages in one-to-one correspondence, the acquiring coordinates of the centers of openings of the first oil passages by the first coordinate system, and the acquiring coordinates of the centers of openings of the second oil passages by the second coordinate system includes:
acquiring coordinates of centers of openings of the plurality of first oil passages through the first coordinate system, and acquiring coordinates of centers of openings of the plurality of second oil passages through the second coordinate system;
when the coordinates of the center of the opening of the first oil passage and the coordinates of the center of the opening of the second oil passage are equal, fitting the end surface of the connection end of the first casing and the end surface of the connection end of the second casing includes:
when the coordinates of the centers of the openings of the plurality of first oil passages are equal to the coordinates of the centers of the openings of the plurality of second oil passages in a one-to-one correspondence, the end face of the connecting end of the first casing is fitted to the end face of the connecting end of the second casing.
3. The assembling method of an engine unit according to claim 2, wherein after the end surface of the connecting end of the first casing and the end surface of the connecting end of the second casing are fitted, the assembling method further comprises:
and determining the opening at the other end of each second oil path correspondingly communicated with the opening at the other end of each first oil path.
4. The assembling method of an engine apparatus according to claim 3, after determining the opening at the other end of each of the second oil passages that communicates correspondingly with the opening at the other end of each of the first oil passages, the assembling method further comprising:
and determining a model drawing of the engine device, and marking the opening at the other end of each first oil path and the opening at the other end of each second oil path correspondingly communicated with the opening at the other end of each first oil path.
5. The method of assembling an engine assembly of claim 4, wherein the first oil passage and the second oil passage in the model drawing are both straight oil passages.
6. The assembling method of an engine apparatus according to claim 1, wherein after the end surface of the connecting end of the first casing and the end surface of the connecting end of the second casing are mated, the assembling method further comprises:
and carrying out air tightness detection on the connected first oil way and the second oil way.
7. The assembling method of an engine apparatus according to claim 6, wherein after the airtightness of the first oil passage and the second oil passage is detected, the assembling method further comprises:
and detecting the flow of the connected first oil path and the second oil path.
8. The method of assembling an engine assembly of claim 1, further comprising:
and carrying out flaw detection on the first oil way and the second oil way.
9. The method of assembling an engine apparatus according to claim 8, wherein performing flaw detection on the first oil passage and the second oil passage includes:
and carrying out flaw detection on the first oil way and the second oil way by adopting electronic computed tomography.
10. The method of assembling an engine apparatus according to claim 1, wherein the first oil passage includes a main body oil passage and a conduit connected to each other, the conduit being an opening at an end of the first oil passage away from a nozzle of the main body oil passage, and the obtaining coordinates of a center of the opening of the first oil passage by the first coordinate system includes:
and acquiring the coordinate of the center of the pipe far away from the pipe orifice of the main body oil way through the first coordinate system, and taking the coordinate as the coordinate of the opening center of the first oil way.
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