CN209212958U - For improving the technique cylinder head of four-cylinder cylinder holes deformation - Google Patents
For improving the technique cylinder head of four-cylinder cylinder holes deformation Download PDFInfo
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- CN209212958U CN209212958U CN201920003304.1U CN201920003304U CN209212958U CN 209212958 U CN209212958 U CN 209212958U CN 201920003304 U CN201920003304 U CN 201920003304U CN 209212958 U CN209212958 U CN 209212958U
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Abstract
The utility model discloses a kind of technique cylinder head of improvement four-cylinder cylinder holes deformation, which includes: technique cylinder head ontology；Multiple cutters pass in and out unthreaded hole, and plurality of cutter disengaging unthreaded hole is arranged on technique cylinder head ontology, and the quantity that cutter passes in and out unthreaded hole is identical as cylinder number, and cutter passes in and out unthreaded hole and carries out honing to cylinder holes for honing head；And process gas cylinder bolt hole, process gas cylinder bolt hole are uniformly arranged on around each cutter disengaging unthreaded hole, process gas cylinder bolt hole is for accommodating fixing bolt；Wherein, technique cylinder head is fixed in cylinder block by fixing bolt；And wherein, technique cylinder head and practical cylinder head have similar rigidity, and practical cylinder head is used to form engine with cylinder block；And wherein, process gas cylinder bolt hole mounting surface height is consistent with practical cylinder bolt mounting surface height.The technique cylinder head of the utility model improves engine performance and reliability.
Description
Technical field
The utility model is about technical field of engines, especially with regard to a kind of for improving the deformation of four-cylinder cylinder holes
Technique cylinder head.
Background technique
Cylinder holes is the space of gas compression burning and expansion work, is assembled in operational process, under the effect of cylinder bolt power,
Certain deformation can occur for cylinder holes, and deformation extent will affect engine performance and reliability.Cylinder holes modified difference, it may appear that alter
Gas alters oil, all undesirable so as to cause fuel consumption rate and engine oil consumption, and cylinder holes modified difference can accelerate the abrasion of cylinder sleeve to make to send out
The service life reduction of motivation, therefore, cylinder holes deformation must satisfy design requirement.
For four cylinders without cylinder sleeve engine, cylinder holes is integrated in cylinder block, and cylinder holes will meet design requirement, it is necessary to carry out the top gem of a girdle-pendant
Mill processing, conventional processing method is that cylinder block without cylinder cap is directly installed in honing on honing machine, although after processing in this way
Cylinder holes has preferable circularity, but will appear following problem: (1) after cylinder block loads onto cylinder cap, because cylinder bolt pretightning force
Effect, cylinder block deform.Cylinder holes modified difference, in the process of running, combustion gas is easy to scurry into crankcase, machine oil engine
Easily scurrying into combustion chambers burn causes fuel consumption rate and engine oil consumption all undesirable.Meanwhile engine operation, due to piston and cylinder
Set friction can aggravate, to accelerate barrel wear, engine life be caused to reduce.(2) six regulation of state is relative to five pairs of discharges of state
It is required that it is harsher, it is tightened up to the deformation requirements of cylinder holes, the cylinder holes of six emission request of state is extremely difficult to according to existing processing method
Deformation.Prior art CN207686858U, CN108757204A and CN108838866A disclose simulation cylinder head, still
These cylinder head or manufacturing process difficulty are big, high production cost, or reduction cylinder holes deformability is poor, does not adapt to new
Discharge standard.
The information disclosed in the background technology section is intended only to increase the understanding to the general background of the utility model, and
It is not construed as recognizing or implying in any form that information composition is already known to those of ordinary skill in the art existing
Technology.
Utility model content
The purpose of this utility model is to provide a kind of for improving the technique cylinder head of four-cylinder cylinder holes deformation, can
The shortcomings that overcoming the prior art.
To achieve the above object, the utility model provides a kind of technique cylinder head of improvement four-cylinder cylinder holes deformation, should
Technique cylinder head includes: technique cylinder head ontology；Multiple cutters pass in and out unthreaded hole, and plurality of cutter disengaging unthreaded hole is arranged in technique
On cylinder head ontology, the quantity that cutter passes in and out unthreaded hole is identical as cylinder number, and cutter passes in and out unthreaded hole for honing head to cylinder
Hole carries out honing；And process gas cylinder bolt hole, process gas cylinder bolt hole are uniformly arranged on each cutter disengaging unthreaded hole week
It encloses, process gas cylinder bolt hole is for accommodating fixing bolt；Wherein, technique cylinder head is fixed on cylinder block by fixing bolt
On；And wherein, technique cylinder head and practical cylinder head have similar rigidity, and practical cylinder head is used to form with cylinder block and send out
Motivation；And wherein, process gas cylinder bolt hole mounting surface height is consistent with practical cylinder bolt mounting surface height.
In a preferred embodiment, it is used when cylinder holes honing of the technique cylinder head for no cylinder sleeve four cylinder engine,
The quantity of multiple cutter disengaging unthreaded holes is four, and the center line of cutter disengaging unthreaded hole is consistent with the center line of cylinder holes.
In a preferred embodiment, the quantity of process gas cylinder bolt hole is 18, and process gas cylinder bolt hole is adopted
With dormant bolt hole.
In a preferred embodiment, technique cylinder head passes through steel plate machine-shaping.
Compared with prior art, the technique cylinder head for improving the deformation of four-cylinder cylinder holes of the utility model has as follows
Advantage: the utility model solve the problems, such as to assemble after machine body cylinder hole machined in the production of existing four-cylinder lose after upper cylinder cover it is round,
Ensuring cylinder holes in the operating condition has preferable circularity, reduces cylinder holes deformation, so as to improve engine performance and reliably
Property, while also can more preferably reach six emission request of state.Technique cylinder head and actual cylinder are stamped similar rigidity, i.e., using identical
After the assembly of fixing bolt pretightning force, the deformation of cylinder holes caused by technique cylinder head and cylinder holes amplitude of deformation one caused by practical cylinder head
It causes, thereby may be ensured that cylinder holes in the operating condition has preferable circularity, cylinder holes deformation is reduced, so as to improve engine
Energy and reliability, are also more conducive to meeting the emission request that engine reaches new；Technique cylinder head passes through steel plate machine-shaping,
And upper and lower surface, by machining, structure is simple；In the insufficient situation of honing machine stroke, using the utility model patent technique
Cylinder head, bolt hole mounting surface height is consistent with practical cylinder bolt mounting surface height, therefore does not have to special development technology bolt,
It can be assembled with cylinder block with practical fixing bolt；Technique air cylinder head structure is simple, and handling ease is quick, and technique cylinder cap
Thickness is thin, light-weight, installs operation convenient for worker.
Detailed description of the invention
Fig. 1 is the structural schematic diagram according to the technique cylinder cap of one embodiment of the utility model.
Fig. 2 and Fig. 3 is to assemble honing body cylinder holes schematic diagram according to the technique cylinder cap of one embodiment of the utility model.
Fig. 4 is the method flow diagram according to the honing Multi-Cylinder Diesel Engine cylinder holes of one embodiment of the utility model.
Specific embodiment
With reference to the accompanying drawing, specific embodiment of the present utility model is described in detail, it is to be understood that this is practical
Novel protection scope is not limited by the specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members
Part or other component parts.
As shown in Figure 1 to Figure 3, the technique cylinder head of the preferred embodiments of the present invention is for four cylinders without cylinder sleeve engine
Cylinder holes carry out honing when use, technique air cylinder head structure includes: technique cylinder head ontology 1, open up thereon there are four cutter into
Light hole 2 and 18 cylinder head bolt hole 3；Wherein, fixing bolt 6 sequentially passes through process gas cylinder bolt hole 3 and head gasket 4
And be tightened against in cylinder block 5, to keep technique cylinder head ontology 1 and head gasket 4 and cylinder block 5 affixed；Wherein, four cutters into
Light hole 2 is passed in and out with for honing head 7, so that honing head be made to carry out honing without the cylinder holes of cylinder sleeve engine to four cylinders.
In practical applications, in order to guarantee that cylinder holes deformation when assembling practical cylinder cap of cylinder block 5 is smaller, this is devised
The technique cylinder head of utility model, allows honing again after 5 assembly technology cylinder head of cylinder block, by special design, so that work
Skill cylinder head and practical cylinder cap have similar rigidity, when to guarantee that having torn technique cylinder head open assembles practical cylinder cap, cylinder holes
Ideal round shape state can be substantially returned to, to reduce cylinder holes deformation.It should be noted that technique cylinder described in the utility model
Lid has similar rigidity with practical cylinder cap, refers to that the rigidity of technique cylinder head differs the model 3% with the rigidity of practical cylinder cap
In enclosing.
Technique cylinder head is simple by steel plate machining molding structure, and upper and lower surface processing guarantees precision, technique cylinder
There is cylinder head bolt hole 3 on lid ontology 1 and mounting surface height be consistent with practical cylinder cap, does not have to special exploitation special process bolt,
It can be assembled with cylinder block 5 with practical fixing bolt 3, be convenient for worker operation.The cutter disengaging unthreaded hole 2 processed between two cylinders,
It can guarantee that honing head can free in and out.By optimization design, technique cylinder head is allowed to draw with practical cylinder head to the effect of cylinder block 5
The cylinder holes deformation risen is consistent as far as possible, to realize that cylinder holes is restored.Use process is as follows: by fixing bolt 3 technique cylinder head
1, after head gasket 4 and cylinder block 5 are assembled, cylinder block 5 is subjected to honing to cylinder holes later on the tooling platform of honing machine and is added
Work.Wherein, head gasket 4 is folded between technique cylinder head 1 and cylinder block 5.
As shown in figure 4, the method for honing Multi-Cylinder Diesel Engine cylinder holes includes the following steps: step 401: by such as preceding technique cylinder head
It is fixed in cylinder block by fixing bolt；Step 402: Honing process is carried out to the cylinder holes of Multi-Cylinder Diesel Engine；Step 403: by technique
Cylinder head is removed from cylinder block；And step 404: practical cylinder block is installed in cylinder block, wherein the technique cylinder head
Bolt hole mounting surface height is consistent with practical cylinder bolt mounting surface height.
The description of the aforementioned specific exemplary embodiment to the utility model is in order to illustrate and illustration purpose.These
Description is not wishing to for the utility model to be limited to disclosed precise forms, and it will be apparent that according to the above instruction, can carry out
It is many to change and change.The purpose of selecting and describing the exemplary embodiment is that explaining the specific principle of the utility model
And its practical application, so that those skilled in the art can be realized and utilize a variety of different examples of the utility model
Property embodiment and various chooses and changes.The scope of the utility model is intended to by claims and its waits similar shapes
Formula is limited.
Claims (4)
1. a kind of technique cylinder head for improving the deformation of four-cylinder cylinder holes, it is characterised in that: the technique cylinder head includes:
Technique cylinder head ontology；
Multiple cutters pass in and out unthreaded hole, and the plurality of cutter disengaging unthreaded hole is arranged on the technique cylinder head ontology, described
The quantity that cutter passes in and out unthreaded hole is identical as cylinder number, and the cutter disengaging unthreaded hole carries out the cylinder holes for honing head
Honing；And
Process gas cylinder bolt hole, the process gas cylinder bolt hole is uniformly arranged on around each cutter disengaging unthreaded hole, described
Process gas cylinder bolt hole is for accommodating fixing bolt；
Wherein, the technique cylinder head is fixed in cylinder block by the fixing bolt；
And wherein, the technique cylinder head and practical cylinder head have similar rigidity, and the practical cylinder head is used for and institute
State cylinder block composition engine；
And wherein, the process gas cylinder bolt hole mounting surface height is consistent with practical cylinder bolt mounting surface height.
2. technique cylinder head as described in claim 1, it is characterised in that: the technique cylinder head is started for no four cylinder of cylinder sleeve
It is used when the cylinder holes honing of machine, the quantity of multiple cutter disengaging unthreaded holes is four, and in cutter disengaging unthreaded hole
Heart line is consistent with the center line of the cylinder holes.
3. technique cylinder head as claimed in claim 2, it is characterised in that: the quantity of the process gas cylinder bolt hole is 18
A, the process gas cylinder bolt hole uses dormant bolt hole.
4. technique cylinder head as claimed in claim 3, it is characterised in that: the technique cylinder head passes through steel plate machine-shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920003304.1U CN209212958U (en) | 2019-01-02 | 2019-01-02 | For improving the technique cylinder head of four-cylinder cylinder holes deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920003304.1U CN209212958U (en) | 2019-01-02 | 2019-01-02 | For improving the technique cylinder head of four-cylinder cylinder holes deformation |
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| Publication Number | Publication Date |
|---|---|
| CN209212958U true CN209212958U (en) | 2019-08-06 |
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ID=67466797
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920003304.1U Active CN209212958U (en) | 2019-01-02 | 2019-01-02 | For improving the technique cylinder head of four-cylinder cylinder holes deformation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519538A (en) * | 2019-01-02 | 2019-03-26 | 广西玉柴机器股份有限公司 | For improving the technique cylinder head of four-cylinder cylinder holes deformation and the method for honing cylinder holes |
| CN110578612A (en) * | 2019-09-18 | 2019-12-17 | 广西玉柴机器股份有限公司 | cylinder body structure capable of reducing S deformation of cylinder sleeve |
-
2019
- 2019-01-02 CN CN201920003304.1U patent/CN209212958U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519538A (en) * | 2019-01-02 | 2019-03-26 | 广西玉柴机器股份有限公司 | For improving the technique cylinder head of four-cylinder cylinder holes deformation and the method for honing cylinder holes |
| CN110578612A (en) * | 2019-09-18 | 2019-12-17 | 广西玉柴机器股份有限公司 | cylinder body structure capable of reducing S deformation of cylinder sleeve |
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