CN205629859U - Overcome valve oil seal pressure head of position degree error - Google Patents
Overcome valve oil seal pressure head of position degree error Download PDFInfo
- Publication number
- CN205629859U CN205629859U CN201620138480.2U CN201620138480U CN205629859U CN 205629859 U CN205629859 U CN 205629859U CN 201620138480 U CN201620138480 U CN 201620138480U CN 205629859 U CN205629859 U CN 205629859U
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- China
- Prior art keywords
- pressure head
- spring
- depression bar
- mandrel
- oil seal
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- 238000007667 floating Methods 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 39
- 238000012797 qualification Methods 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 57
- 238000013461 design Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000010721 machine oil Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 206010012735 Diarrhoea Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model discloses an overcome valve oil seal pressure head of position degree error, it includes the pressure head mount pad, and the pressure head mount pad is provided with the depression bar, and the depression bar lower part is provided with the pressure head dabber, adopts components of a whole that can function independently floating structure between pressure head dabber and the depression bar, and this components of a whole that can function independently floating structure include: elasticity cylindric lock, spring A, round pin A, spring dog, oil blanket pressure head, the pressure head dabber sets up in the centre bore of oil blanket pressure head, and the upper portion cover of pressure head dabber is equipped with spring A, and this spring A's last lower extreme all is provided with the spring dog, and the spring dog of spring upper end and the centre bore of pressure head dabber are worn to locate by the elasticity cylindric lock, are installed in the hole of depression bar through round pin A by the pressure head subassembly that pressure head dabber, spring A, spring dog constitute. The beneficial effects of the utility model are that: it not only can compensate because of processing, assemble the error that causes, and all right compatible multimachine type pressure equipment has the characteristics that reduce oil blanket damage, equipment fixing debugging convenience and improvement oil blanket pressure equipment qualification rate.
Description
Technical field
This utility model relates to oil sealing technical field of pressing machine, especially relates to a kind of valve overcoming position error
Oil sealing pressure head, it is applicable to manual semi-automatic oil seal pressing machine.
Background technology
Valve oil seal (Valve stem seal) is the one of oil sealing, typically by the common sulfur of purchasing ore and fluorubber
Change forms, and oil sealing footpath oral area is provided with self-tightening spring or steel wire, for the sealing of engine valve guide rod, anti-
Only machine oil enters air inlet-outlet pipe, causes machine oil to run off, and prevents gasoline useless with the mixed gas of air and discharge
Diarrhea due to stagnation of QI reveals, and prevents engine motor oil from entering combustor.As a example by four-cylinder gasoline engine, every cylinder has two to enter
Valve and two exhaust valves, each valve is provided with oil sealing, and therefore this engine oil seal amounts to 16.Oil
Envelope cross-section structure sees Fig. 1, the figure shows self-tightening spring E1, fluorubber E2, purchasing ore E3.
Intake and exhaust oil seal pressing machine is that the one on the cylinder cap subpackage line of engine line press-fits kind equipment.Fig. 2
Showing exhaust side oil seal pressing machine schematic diagram, it includes servo press structure T1, equipment column T2, equipment
Base T3, cylinder cap lifting-overturning device T4, lifting transmission line body T5, oil sealing pressure head component T6, Fig. 3 is then
Showing air inlet side oil seal pressing machine schematic diagram, it includes servo press structure T1, equipment column T2, equipment
Base T3, cylinder cap lifting-overturning device T4, lift transmission line body T5, oil sealing pressure head component T6, according to oil
Sealing manual feeding or automatic material taking is classified, oil seal pressing machine can be divided into semiautomatic equipment and fully-automatic equipment.
Classify according to equipment availability beat, activity duration short intake and exhaust oil sealing is press-fited on two equipment respectively,
Activity duration sufficient intake and exhaust oil sealing is press-fited on an equipment.
The monoblock type pressure head design structure of traditional oils pressing machine has simple in construction, handling ease, assembling side at present
The feature such as just, but, the design of monoblock type pressure head but also exists and causes oil because of cumulative errors such as processing, assemblings
With valve guide bushing center the most on the same line, such pressure head, during press-fiting, can be sent out at envelope mandrel center
Life makes the fracture of pressure head mandrel, oil sealing inner sealing object damage and post facility because pressure head mandrel is lateral stressed
Debugging brings the adverse consequencess such as difficulty.
Utility model content
The purpose of this utility model is to provide a kind of pressure head of valve oil seal overcoming position error, and it not only may be used
To compensate because of processing, the error that causes of assembling, it is also possible to compatible multi-model press-fits, have reduction oil sealing damage,
Rigging up and debugging convenience and the feature of raising oil seal pressing qualification rate.
For solving above-mentioned technical problem, embodiment of the present utility model provides and a kind of overcomes position error
Pressure head of valve oil seal, it includes pressure head mounting seat, and described pressure head mounting seat is provided with depression bar, under described depression bar
Portion is provided with pressure head mandrel, uses split floating structure, this split to float between described pressure head mandrel and depression bar
Structure includes: elastic cylindrical pin, spring A, pin A, spring block, oil sealing pressure head；Described pressure head mandrel sets
Being placed in the centre bore of described oil sealing pressure head, the top of described pressure head mandrel is arranged with spring A, this spring A's
Upper and lower side is provided with spring block, and described elastic cylindrical pin is arranged in spring block and the institute of spring upper end
Stating the centre bore of pressure head mandrel, the pressure head component being made up of pressure head mandrel, spring A, spring block is by pin A
And be installed in the endoporus of described depression bar；Wherein, described pressure head mandrel and oil sealing pressure head have fit clearance,
Described spring block external diameter is monolateral with depression bar endoporus compensation gap c so that oil sealing pressure head centrage is at horizontal plane
The most circumferentially arbitrarily angled deviation monolateral cmm of depression bar centrage within 360 °.
Further, the sidewall of described oil sealing pressure head is provided with interior hexagonal tapered end holding screw (GB/T78M4X6).
Further, described pin A is provided with the spring B preventing it from coming off.
Further, the top of described depression bar coordinates interior hexagonal flush end holding screw to be installed on described pressure by pin B
Head mounting seat, described depression bar is provided with the depression bar mounting hole coordinated with pin B.
Further, described pressure head mounting seat bottom is provided with the valve spring being sheathed on depression bar mandrel, described valve
The upper and lower side of spring is provided with spring-leaf retainer.
Further, described compensation gap c is 0.5mm.
Compared with prior art, this utility model has the advantages that structure provided by the utility model
Design is possible not only to compensate the error caused because of processing, assembling, it is also possible to compatible multi-model is (when several type
When air inlet side valve guide bushing or exhaust side valve guide bushing horizontal spacing position difference are within 0.25mm, this kind of pressure
Head design can make up gas by pressure head self split floating structure in the case of being changed without pressure head installing plate
Door catheter position degree difference, maximum compensation dosage is 0.5mm) press-fit, there is reduction oil sealing damage, equipment installation
Debugging is convenient and improves the advantages such as oil seal pressing qualification rate.
Accompanying drawing explanation
Fig. 1 is oil sealing cross-sectional view in background technology；
Fig. 2 is exhaust side oil cylinder pressing machine schematic diagram in background technology；
Fig. 3 is air inlet side oil cylinder pressing machine schematic diagram in background technology；
Fig. 4 is the pressure head of valve oil seal axonometric drawing overcoming position error；
Fig. 5 is the pressure head of valve oil seal sectional view one overcoming position error；
Fig. 6 is the pressure head of valve oil seal sectional view two overcoming position error；
Fig. 7 is the pressure head of valve oil seal partial structurtes schematic diagram one overcoming position error；
Fig. 8 is the pressure head of valve oil seal partial structurtes schematic diagram two overcoming position error；
Fig. 9 be traditional valve oil sealing pressure head press-fit state diagram；
Figure 10 be overcome position error pressure head of valve oil seal press-fit design sketch.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing to this reality
It is explained in detail with novel each embodiment.But, it will be understood by those skilled in the art that
In each embodiment of this utility model, in order to make reader be more fully understood that, the application proposes many technology
Details.But, even if there is no these ins and outs and many variations based on following embodiment and amendment,
The application each claim technical scheme required for protection can also be realized.
As Figure 4-8, a kind of pressure head of valve oil seal overcoming position error, it includes pressure head mounting seat 1,
Described pressure head mounting seat is provided with depression bar 4, and described depression bar bottom is provided with pressure head mandrel 13, described pressure head core
Using split floating structure between axle and depression bar, this split floating structure includes: elastic cylindrical pin 7, spring
A8, pin A9, spring block 11, oil sealing pressure head 15；Described pressure head mandrel 13 is arranged at described oil sealing pressure head
In the centre bore of 15, this oil sealing pressure head 15 is provided with valve oil seal 14, the sidewall peace of described oil sealing pressure head 15
Equipped with interior hexagonal tapered end holding screw 12, the top of described pressure head mandrel 13 is arranged with spring A8, this spring A
Upper and lower side be provided with spring block 11, described elastic cylindrical pin 7 is arranged in the spring block of spring upper end
And the centre bore of described pressure head mandrel, the pressure being made up of pressure head mandrel 13, spring A8, spring block 11
Head assembly is installed in the endoporus of described depression bar by pin A9, and described pin A9 is provided with and prevents it from coming off
Spring B 10；Wherein, described pressure head mandrel and oil sealing pressure head have a fit clearance, described spring block external diameter with
Depression bar endoporus is monolateral has the value upper limit compensating gap c, this compensation gap c to use 5mm design so that oil sealing
Pressure head centrage circumferentially arbitrarily angled deviation monolateral 5mm of depression bar centrage within 360 ° in horizontal plane.
The top of described depression bar coordinates interior hexagonal flush end holding screw 3 to be installed on described pressure head and pacify by pin B2
Dress seat 1, described depression bar is provided with the depression bar mounting hole coordinated with pin B, and described pressure head mounting seat bottom is provided with
Being sheathed on the valve spring 6 of depression bar mandrel, the upper and lower side of described valve spring is provided with spring-leaf retainer 5.
Figures 4-6 it can be seen that for avoiding pressure head mounting seat 1 to occur stuck or flexible when assembling depression bar 4
Motion is not smooth, and pressure head mounting seat mesopore is machined with step, to shorten length of fit, to alleviate pts wt, increasing
Add bending strength, and then both improved its rigidity, also can discharge the shape position error that depression bar 4 linearity causes.
This structure has the feature such as simple in construction, easy for installation, reasonable stress.Erection sequence is should be noted during installation,
In order to avoid part of damage.Successively by spring-leaf retainer 5, valve spring 6,5 three parts of spring-leaf retainer through depression bar
After mandrel, when utilizing spring compressor by pressure head mounting seat 1 screw hole through depression bar waist-shaped hole, will
GB/T119.2 3X16 pin B2 puts into depression bar waist-shaped hole middle, then with die nut by GB/T77 M4X4
Interior hexagonal flush end holding screw 3 tightens and makes screw hexagonal end face concordant with pressure head mounting seat 1 periphery.
Test is needed: 1. spring precompressed 1mm, precompression is 42N after installation；2. utilize three-dimensional coordinates measurement pressure head to pacify
Dress seat 1 flange installed surface need to control within 0.03mm with depression bar 4 lower surface parallelism error；3. utilize three
Measurement of coordinates pressure head mounting seat 1 upper end positioning core axle and depression bar 4 diameter of bore coaxiality error need to control
Within 0.05mm.
Carry out the purpose of self adaptation valve guide bushing position for reaching the floating of oil sealing pressure head, this utility model uses split type
Floating structure, is i.e. changed to pressure head mandrel 13 and 4 two parts of depression bar traditional indenter monolithic construction.As
(the figure shows engine cylinder cap 17) shown in Fig. 7-8 partial enlarged drawing, for avoid pressure head mandrel 13 because of
Self gravitation affects and falls, and pressure head mandrel 13 need to be passed oil sealing pressure head 15 centre bore by the present invention, then will
Spring block 11, UTT13-15 spring A8, spring block 11 etc. are installed on pressure head mandrel 13, manually
After compression UTT13-15 spring A8, with hammer, GB/T879.1 3X14 elastic cylindrical pin 7 is tapped entrance
In spring block 11 and pressure head mandrel 13 centre bore, and both sides alignment.The pressure head component installed in portion loads
Depression bar 4 endoporus, after alignment connecting pin bores, pushes depression bar 4 and pressure head core GB/T119.2 3X20 pin A9
In axle 13 centre bore, and prevent it from coming off by spring B 10.So spring B 10 promotes lower spring block 11,
And lower spring block 11 is connected on depression bar 4 by GB/T119.2 3X20 pin A9, finally make pressure head
Mandrel 13 rises under the effect of spring B 10, so that depression bar 4 and the laminating of oil sealing pressure head 15 faying face are tight
Close, seamless.Oil sealing pressure head 15 and pressure head mandrel 13 minimal clearance coordinate, and spring block 11 external diameter with
Depression bar 4 internal diameter is monolateral 0.5mm gap, thus oil sealing pressure head 15 centrage can prolong circumference in horizontal plane
The arbitrarily angled deviation depression bar 4 monolateral 0.5mm of centrage within 360 °, and then reach the effect that split is floated.
Pressure head mandrel 13 and depression bar 4 are generally integrally formed part by traditional indenter design as shown in Figure 9,
Oil seal pressing qualification rate can be occurred low, and increase the artificial time changing pressure head installing plate.Put by Figure 10 local
Big figure can be seen that the present invention uses split floating structure, even if because mismachining tolerance causes pressure head mandrel and valve
When catheter center is misaligned or several type cylinder cap air valve catheter is closely located to, also can pass through this status of pressure head
Body floating structure makes pressure head mandrel self adaptation valve guide bushing center, and then avoids oil sealing damage and qualification rate low
Etc. adverse consequences.In figures 9-10, the deviation distance at mandrel center and valve guide bushing 16 center is all illustrated
X=0.25mm.
It will be understood by those skilled in the art that the respective embodiments described above be realize of the present utility model specifically
Embodiment, and in actual applications, can to it, various changes can be made in the form and details, without departing from
Spirit and scope of the present utility model.
Claims (6)
1. overcoming the pressure head of valve oil seal of position error, it includes pressure head mounting seat, described pressure head mounting seat
Being provided with depression bar, described depression bar bottom is provided with pressure head mandrel, it is characterised in that described pressure head mandrel and pressure
Between bar use split floating structure, this split floating structure includes: elastic cylindrical pin, spring A, pin A,
Spring block, oil sealing pressure head；
Described pressure head mandrel is arranged in the centre bore of described oil sealing pressure head, and the top of described pressure head mandrel is arranged with
Spring A, the upper and lower side of this spring A is provided with spring block, and described elastic cylindrical pin is arranged in spring upper end
Spring block and the centre bore of described pressure head mandrel, be made up of pressure head mandrel, spring A, spring block
Pressure head component is installed in the endoporus of described depression bar by pin A；
Wherein, described pressure head mandrel and oil sealing pressure head have in fit clearance, described spring block external diameter and depression bar
Hole is monolateral compensation gap c so that oil sealing pressure head centrage circumferentially random angle within 360 ° in horizontal plane
The degree deviation monolateral cmm of depression bar centrage.
The pressure head of valve oil seal overcoming position error the most according to claim 1, it is characterised in that
The sidewall of described oil sealing pressure head is provided with interior hexagonal tapered end holding screw.
The pressure head of valve oil seal overcoming position error the most according to claim 1, it is characterised in that
Described pin A is provided with the spring B preventing it from coming off.
The pressure head of valve oil seal overcoming position error the most according to claim 1, it is characterised in that
The top of described depression bar coordinates interior hexagonal flush end holding screw to be installed on described pressure head mounting seat by pin B,
Described depression bar is provided with the depression bar mounting hole coordinated with pin B.
The pressure head of valve oil seal overcoming position error the most according to claim 1, it is characterised in that
Described pressure head mounting seat bottom is provided with the valve spring being sheathed on depression bar mandrel, described valve spring upper and lower
End is provided with spring-leaf retainer.
The pressure head of valve oil seal overcoming position error the most according to claim 1, it is characterised in that
Described compensation gap c is 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620138480.2U CN205629859U (en) | 2016-02-24 | 2016-02-24 | Overcome valve oil seal pressure head of position degree error |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620138480.2U CN205629859U (en) | 2016-02-24 | 2016-02-24 | Overcome valve oil seal pressure head of position degree error |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205629859U true CN205629859U (en) | 2016-10-12 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620138480.2U Expired - Fee Related CN205629859U (en) | 2016-02-24 | 2016-02-24 | Overcome valve oil seal pressure head of position degree error |
Country Status (1)
| Country | Link |
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| CN (1) | CN205629859U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106914741A (en) * | 2017-04-27 | 2017-07-04 | 松下压缩机(大连)有限公司 | Multi-pin is while pressing mechanism |
| CN109822320A (en) * | 2019-03-29 | 2019-05-31 | 广西玉柴机器股份有限公司 | A kind of seal valve stem indenter device |
| CN110614497A (en) * | 2019-09-18 | 2019-12-27 | 天永机械电子（太仓）有限公司 | Automatic press fitting and pressing depth measuring device for valve oil seal |
| CN110814699A (en) * | 2019-10-29 | 2020-02-21 | 上海天永智能装备股份有限公司 | Axial floating pressure head |
| CN111360507A (en) * | 2019-10-25 | 2020-07-03 | 横店集团东磁股份有限公司 | Heavy spring assembly and dismounting device thereof |
| CN113020955A (en) * | 2021-05-31 | 2021-06-25 | 苏州托克斯冲压设备有限公司 | Press-fitting equipment for press-fitting cylindrical part into deep-hole part |
-
2016
- 2016-02-24 CN CN201620138480.2U patent/CN205629859U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106914741A (en) * | 2017-04-27 | 2017-07-04 | 松下压缩机(大连)有限公司 | Multi-pin is while pressing mechanism |
| CN109822320A (en) * | 2019-03-29 | 2019-05-31 | 广西玉柴机器股份有限公司 | A kind of seal valve stem indenter device |
| CN109822320B (en) * | 2019-03-29 | 2023-12-19 | 广西玉柴机器股份有限公司 | Valve stem oil seal pressure head device |
| CN110614497A (en) * | 2019-09-18 | 2019-12-27 | 天永机械电子（太仓）有限公司 | Automatic press fitting and pressing depth measuring device for valve oil seal |
| CN111360507A (en) * | 2019-10-25 | 2020-07-03 | 横店集团东磁股份有限公司 | Heavy spring assembly and dismounting device thereof |
| CN110814699A (en) * | 2019-10-29 | 2020-02-21 | 上海天永智能装备股份有限公司 | Axial floating pressure head |
| CN113020955A (en) * | 2021-05-31 | 2021-06-25 | 苏州托克斯冲压设备有限公司 | Press-fitting equipment for press-fitting cylindrical part into deep-hole part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 |
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| CF01 | Termination of patent right due to non-payment of annual fee |