CN109909696A - A kind of detachable gear wheel case method for processing and assembling - Google Patents
A kind of detachable gear wheel case method for processing and assembling Download PDFInfo
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- CN109909696A CN109909696A CN201910337329.XA CN201910337329A CN109909696A CN 109909696 A CN109909696 A CN 109909696A CN 201910337329 A CN201910337329 A CN 201910337329A CN 109909696 A CN109909696 A CN 109909696A
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Abstract
The invention discloses a kind of detachable gear wheel case method for processing and assembling, method includes obtaining box sizes, working gear-box body, cabinet to stand the just detection of discharge, dimensional accuracy, gear, gear-box installation and assembly detection and adjustment.Entire detachable gear wheel case assembling process is changed to gear housing processing, each face depth of parallelism of gear housing and squareness measurement inspection, the installation of detachable gear wheel case, gearbox backlash adjustment, entire process flow clear and smooth, reduces the carrying process repeatedly of current routine operation.
Description
Technical field
The present invention relates to engine art more particularly to a kind of detachable gear wheel case method for processing and assembling.
Background technique
The host intermediate fuel oil system of Win-GD model and MAN model host are entirely different in large ship low-speed diesel engine,
The fuel oil of the host of Win-GD model mainly passes through the oil fuel booster pump that the pressurization of oil supply unit assembly enters on host upper platform,
It is machined into fuel injector again by oil fuel booster pump, completes the spray combustion of fuel oil.Wherein, crankshaft toothed wheel and detachable gear wheel
It is intermeshing state on case gear, detachable gear wheel case gear and oil supply unit gear structure, to pass through crankshaft toothed wheel
Rotation drives detachable gear wheel case gear and oil supply unit gear in succession, provides power support for oil supply unit assembly.So point
The technical requirements that body formula gear-box gear is engaged with oil supply unit gear are very high, by taking RT-flex58T-E model host as an example,
Gear backlash requires to be 0.20mm~0.34mm, and gear-box gear is less than with depth of parallelism difference before and after oil supply unit gear
0.03mm。
The processing of common process scheme is designed related mounting shaft hole and partial installation face for gear housing and is added using general
The processing of work position precision；Seperated gear housing pre-installed, close up again after be pre-positioned；Go out not parallel gear by actual measurement
The back lash value of case gear and oil supply unit gear is derived that gear-box mounting surface front and back needs processing dimension, is carried out again
Processing, assembly, measurement guarantee final gear clearance requirement；The method is generally required by a positioning of adjustment processing twice；Dress
It is low with precision, the period is long, cost is relatively high.
In addition, detachable gear wheel cabinet is weldment, and welded plate very thin thickness, the stress release after processing at present
And cooling meat causes gear fit clearance beyond technology though the mutual morpheme size of each machined surface is changed
Parameter request.
Summary of the invention
For overcome the deficiencies in the prior art, the purpose of the present invention is to provide a kind of detachable gear wheel case process and assemble sides
Method.
The purpose of the present invention is implemented with the following technical solutions:
A kind of detachable gear wheel case method for processing and assembling, method include:
Step1 obtains box sizes, the precision size of gear housing is calculated by design requirement precision, and determine gear
Processing dimension, gap size and the fitted position of box body；
Step2, working gear-box body, according to precision size, processing dimension and the gap size processing split-type in Step1
Gear case body；
Step3, cabinet stand discharge, the split-type gear case body processed are stood naturally, and discharge tonnage；
Step4, dimensional accuracy just detect, and examine to the desired size of the split-type gear case body after standing discharge
It surveys, enters in next step if qualified；
The gear of required assembly is mounted on the qualified split type tooth of previous step detection by Step5, gear, gear-box installation
It takes turns on box body.
Preferably, method further include:
Step6, assembly detection and adjustment, carry out fitted position, gap size to the gear being mounted on gear case body
Detection is processed by the precision size that Step1 is calculated as final size if qualified, if it is unqualified according to detection not
Qualification parameters adjust the accuracy rule little progress row individual event in Step1, until the fitted position and gap size of size qualification are obtained,
And determine final processing dimension.
Preferably, in Step1, the design requirement precision is the requirement of the gear-box gear depth of parallelism, the precision size
Including between gear-box front, side, baseplane and pinion mounting holes flange face the depth of parallelism and verticality processing dimension want
It asks.
Preferably, in Step4, the desired size of split-type gear case body is between each pinion mounting holes flange face
The depth of parallelism controls precision, the degree control essence between gear-box front, side, baseplane and pinion mounting holes flange face
Degree.
Preferably, the parallelism precision control accuracy requirement is≤0.03mm, and the degree control required precision is
≤0.03mm。
Compared with prior art, the beneficial effects of the present invention are:
1. the present invention improves detachable gear wheel case installation accuracy, the service life of gear-box is improved；
2. after the present invention can guarantee that detachable gear wheel case is installed, gear fit clearance can be adjusted disposably to skill
Art requirement does not need to repeat dismounting and process operation, shortens assembly period；
It needs to repeat between the process that detachable gear wheel case is dismantled and assembly shop and processing workshop 3. the present invention solves
The problem of handling process, greatly reduces the cost of labor of pilot process；
4. each planar survey value is overproof after gear-box processes for the first time, when being processed again, each overproof face adds
The work cutting output Normal practice that compares (by the accumulation of the dimensional discrepancy in gear-box each face to gear-box front, only processes this
Face), big load processing operation again is avoided, the stress release after processing again and cooling meat is avoided to lead to morpheme ruler
Very little changed repetitive process.
Detailed description of the invention
Fig. 1 is the detachable gear wheel case gear and oil supply unit gear fit clearance schematic diagram of diesel engine；
Fig. 2 and Fig. 3 is the detachable gear wheel box structure diagram of diesel engine；
Fig. 4 is gear-box pinion mounting holes flange face schematic cross-section；
Fig. 5 is a kind of detachable gear wheel case method for processing and assembling flow diagram of the present invention.
In figure: 1, oil supply unit gear；2, gear-box gear；3, detachable gear wheel cabinet front；4, detachable gear wheel case
Body side surface；5, detachable gear wheel cabinet baseplane；6, detachable gear wheel case pinion mounting holes flange face.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Referring to figures 1-4, the detachable gear wheel box structure of a kind of diesel engine, 2 center of gear-box gear and oil supply unit tooth
Take turns 1 center in the same plane, the plane and gear housing mounting surface are to be mutually perpendicular to state, pass through the gear of above-mentioned two gear
Parallelism precision requires, less than or equal to 0.03mm, to derive the depth of parallelism control precision of each flange face of pinion mounting holes
It is required that for less than or equal to 0.03mm, and can derive detachable gear wheel case front 3 respectively with detachable gear wheel case side 4,
The degree control required precision of detachable gear wheel bottom plane 5 and detachable gear wheel case pinion mounting holes flange face 6 is small
In being equal to 0.03mm, Fig. 3,6 schematic cross-section of detachable gear wheel case pinion mounting holes flange face, pictorial definition have to sum up been obtained
The each face verticality of gear housing and depth of parallelism control require.
Then, according to the size requirement of Fig. 2-Fig. 4, gear-box processing operation, stress release and standing, parallel is successively carried out
Degree and squareness measurement and it is confirmed whether to need according to measurement result to carry out processing operation again.
After processing dimension meets Fig. 4 requirement, then the assembly working for carrying out detachable gear wheel case carries out detachable gear wheel case
It installs and adjusts with diesel engine base, oil supply unit assembly and detachable gear wheel case mounting and adjusting work, entire detachable gear wheel
Case assembling process is changed to gear housing processing, each face depth of parallelism of gear housing and squareness measurement inspection, detachable gear wheel
Case installation, gearbox backlash adjustment, entire process flow clear and smooth reduce the carrying process repeatedly of current routine operation.
Referring to Fig. 5, the invention provides a kind of detachable gear wheel case method for processing and assembling, method includes:
Step1, obtains box sizes, that is, calculates the precision size of cabinet, calculates gear housing by design requirement precision
Precision size, and determine gear case body processing dimension, gap size and fitted position；
In Step1, the design requirement precision is the requirement of the gear-box gear depth of parallelism, and the precision size includes gear
The depth of parallelism and the requirement of verticality processing dimension between case front, side, baseplane and pinion mounting holes flange face.
Step2, working gear-box body, according to precision size, processing dimension and the gap size processing split-type in Step1
Gear case body；
Step3, cabinet stand discharge, the split-type gear case body processed are stood naturally, and discharge tonnage；
Step4, dimensional accuracy just detect, and examine to the desired size of the split-type gear case body after standing discharge
It surveys, enters in next step if qualified；
In Step4, the depth of parallelism of the desired size of split-type gear case body between each pinion mounting holes flange face
Control precision, the degree control precision between gear-box front, side, baseplane and pinion mounting holes flange face.
The gear of required assembly is mounted on the qualified split type tooth of previous step detection by Step5, gear, gear-box installation
It takes turns on box body.
Step6, assembly detection and adjustment, carry out fitted position, gap size to the gear being mounted on gear case body
Detection is processed by the precision size that Step1 is calculated as final size if qualified, if it is unqualified according to detection not
Qualification parameters adjust the accuracy rule little progress row individual event in Step1, until the fitted position and gap size of size qualification are obtained,
And determine final processing dimension.
In a particular embodiment, parallelism precision control accuracy requirement is≤0.03mm, and degree control required precision is
≤ 0.03mm can also carry out adjustable setting according to different size and design requirement.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (5)
1. a kind of detachable gear wheel case method for processing and assembling, which is characterized in that method includes:
Step1 obtains box sizes, the precision size of gear housing is calculated by design requirement precision, and determine gear-box case
Processing dimension, gap size and the fitted position of body；
Step2, working gear-box body, according to precision size, processing dimension and the gap size processing split-type gear in Step1
Box body；
Step3, cabinet stand discharge, the split-type gear case body processed are stood naturally, and discharge tonnage；
Step4, dimensional accuracy just detect, and detect to the desired size of the split-type gear case body after standing discharge, if
It is qualified then enter in next step；
The gear of required assembly is mounted on the qualified detachable gear wheel case of previous step detection by Step5, gear, gear-box installation
On cabinet.
2. the method according to claim 1, wherein method further include:
Step6, assembly detection and adjustment carry out fitted position, gap size detection to the gear being mounted on gear case body,
It is processed by the precision size that Step1 is calculated as final size if qualified, if unqualified according to the unqualified of detection
Parameter adjusts the accuracy rule little progress row individual event in Step1, until obtaining the fitted position and gap size of size qualification, and really
Fixed final processing dimension.
3. according to the method described in claim 1, it is characterized by: the design requirement precision is gear-box tooth in Step1
Depth of parallelism requirement is taken turns, the precision size includes between gear-box front, side, baseplane and pinion mounting holes flange face
The depth of parallelism and the requirement of verticality processing dimension.
4. according to the method described in claim 1, it is characterized by: in Step4, the desired size of split-type gear case body
The depth of parallelism between each pinion mounting holes flange face controls precision, gear-box front, side, baseplane and pinion mounting holes
Degree control precision between flange face.
5. the method according to claim 3 or 4, it is characterised in that: the parallelism precision control accuracy requirement be≤
0.03mm, the degree control required precision are≤0.03mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910337329.XA CN109909696B (en) | 2019-04-25 | 2019-04-25 | Split type gear box machining and assembling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910337329.XA CN109909696B (en) | 2019-04-25 | 2019-04-25 | Split type gear box machining and assembling method |
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| CN109909696A true CN109909696A (en) | 2019-06-21 |
| CN109909696B CN109909696B (en) | 2021-07-30 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8001687B2 (en) * | 2006-12-20 | 2011-08-23 | Namco Machine & Gear Works Ltd. | Method of forming a gearbox using hollow structural steel |
| CN103381537A (en) * | 2012-05-05 | 2013-11-06 | 文静 | Process method for machining lathe gearbox gear mesh transmission distributor |
| CN107178607A (en) * | 2017-06-20 | 2017-09-19 | 中国北方车辆研究所 | A kind of split type high-precision planet carrier and its processing method |
| CN108480920A (en) * | 2018-03-02 | 2018-09-04 | 沈阳透平机械股份有限公司 | A kind of parts processing method of horizonally split formula centrifugal compressor shell body |
-
2019
- 2019-04-25 CN CN201910337329.XA patent/CN109909696B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8001687B2 (en) * | 2006-12-20 | 2011-08-23 | Namco Machine & Gear Works Ltd. | Method of forming a gearbox using hollow structural steel |
| CN103381537A (en) * | 2012-05-05 | 2013-11-06 | 文静 | Process method for machining lathe gearbox gear mesh transmission distributor |
| CN107178607A (en) * | 2017-06-20 | 2017-09-19 | 中国北方车辆研究所 | A kind of split type high-precision planet carrier and its processing method |
| CN108480920A (en) * | 2018-03-02 | 2018-09-04 | 沈阳透平机械股份有限公司 | A kind of parts processing method of horizonally split formula centrifugal compressor shell body |
Non-Patent Citations (1)
| Title |
|---|
| 薛立锵: "《电子机械制造工艺学》", 31 December 1994, 西安电子科技大学出版社 * |
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