CN103707035A - Pressure head of valve oil seal - Google Patents
Pressure head of valve oil seal Download PDFInfo
- Publication number
- CN103707035A CN103707035A CN201210369918.4A CN201210369918A CN103707035A CN 103707035 A CN103707035 A CN 103707035A CN 201210369918 A CN201210369918 A CN 201210369918A CN 103707035 A CN103707035 A CN 103707035A
- Authority
- CN
- China
- Prior art keywords
- oil seal
- guide
- pressure head
- valve
- sealing gland
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
Abstract
The invention discloses a pressure head of a valve oil seal. The pressure head of the valve oil seal comprises a base, an oil seal pressing sleeve and a guide shaft. An upper shell and a lower cover of the base are fastened with each other to form a connecting cavity, the oil seal pressing sleeve is tubular, the upper end of the oil seal pressing sleeve is arranged in the connecting cavity and is connected with the connecting cavity in a ball suspension manner, and a lower port of the oil seal pressing sleeve is matched with the valve oil seal to be subjected to press-fitting; the guide shaft is cylindrical and is inserted into the oil seal pressing sleeve, and a tapered guide head is arranged at the lower end of the guide shaft. The pressure head of the valve oil seal has the advantages that the oil seal pressing sleeve of the pressure head of the valve oil seal is connected with the base in the ball suspension manner, so that the oil seal pressing sleeve and the guide shaft can keep in perpendicular directions while the oil seal pressing sleeve and the guide shaft can be finely repositioned in the left-right directions on ball planes, press-fitting guiding and positioning can be conveniently carried out by the guide shaft when a valve guide pipe is not aligned with the pressure head of the valve oil seal, the press-fitting precision can be improved, and a press-fitting success rate can be increased.
Description
Technical field
The present invention relates to engine art, particularly a kind of valve oil seal pressure head.
Background technology
As shown in Figure 1, during cylinder cap assembling, valve oil seal need to be fitted on valve guide bushing by the oil sealing pressure head being connected with pressing machine.Existing oil sealing pressure head comprises: the base being connected with pressing machine, oil sealing gland and the axis of guide.Wherein, oil sealing gland is rewinding shape, and top is fixed on base, and middle part sidewall offers pin hole relatively, and bottom nozzle is the ladder port with the adaptive suit of valve oil seal to be press-fited.The axis of guide is multidiameter structure, and upper end macro-axis is inserted in the inner chamber of rewinding shape oil sealing gland, and by pin, passes fixing; little Zhou lower end, lower end has taper guide head, coordinates insertion with valve guide bushing.
While press-fiting, first valve oil seal is enclosed within on the lower end ladder port of oil sealing gland of oil sealing pressure head, now, the axis of guide stretches out from valve oil seal, oil sealing pressure head vertically moves downward under the effect of pressing machine, when first the axis of guide inserts valve guide bushing, can play guide effect, follows whole oil sealing pressure head and moves vertically downward valve oil seal is pressed on valve guide bushing in company with the axis of guide, finally, whole oil sealing pressure head is got back to vertically upward origin-location and is completed the whole action that press-fits.Because pin and oil sealing gland middle part pin hole matched in clearance, the axis of guide and oil sealing gland are floating connection, the axis of guide is easily inserted and in valve guide bushing, play guide effect.
But the pin floating connection of the axis of guide and oil sealing gland, make on the one hand the axis of guide easily insert and in valve guide bushing, play guide effect, make but then axis of guide offset from perpendicular, make the downward pressure of pressing machine produce cross component force, and then cause valve oil seal to press partially.Also have, the endoporus that the diameter of the axis of guide is compared valve guide bushing is too little, makes the positioning and guiding of the axis of guide inaccurate.And the axis of guide to stretch out the length of oil sealing gland too short, while making the axis of guide not import in valve guide hole, valve oil seal front end has touched valve guide bushing, causes location inaccurate, valve oil seal is easily damaged by pressure.Finally, the large mouthful sidewall of the lower end ladder port of oil sealing gland is too short, whole valve oil seal tightly cannot be encased, and makes to press-fit this location on oil sealing pressure head of valve oil seal in process inaccurate, causes to press-fit not in placely, and success rate is low.
Summary of the invention
The present invention is in order to overcome defect in above-mentioned prior art, provides a kind of rational in infrastructure simple, press-fits the valve oil seal pressure head that precision and efficiency are high.
Technical solution of the present invention is such, a kind of valve oil seal pressure head, comprise base, oil sealing gland, the axis of guide, it is characterized in that upper casing and lower cover that base passes through mutually to fasten form connection chamber, oil sealing gland is tubulose, and upper end is arranged in connection chamber and formation ball suspends connects, lower port and valve oil seal adaptation to be press-fited, the axis of guide is cylindric, is inserted in oil sealing gland, and lower end has taper guide head.
The upper end of oil sealing gland has the adaptive secondary ladder radial flange connecting portion being connected of connection chamber with base, and the shoulder of secondary ladder radial flange connecting portion and the leg of connection chamber form upper and lower two ring raceways, in two ring raceways, are provided with ball.
The tube chamber of tubulose oil sealing gland be three grades stepped, the axis of guide comprises superposed installation plug and is positioned at the stop lug at middle part, the upper end loculus interference adaptation plug-in mounting of plug and three grades of stepped tube chambers of tubulose oil sealing gland is installed, and stop lug props up the end face of middle part lumen of three grades of stepped tube chambers of tubulose oil sealing gland.
The present invention has following beneficial effect: because the oil sealing gland of valve oil seal pressure head and base adopt the suspension of ball form to be connected, make oil sealing gland and the axis of guide can in ball plane, carry out left and right fine position when keeping vertical direction, be convenient to the axis of guide and timing do not press-fited to guide-localization at position and the valve oil seal pressure head of valve guide bushing, thereby improve, press-fit precision and success rate.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of existing valve oil seal pressure head;
Fig. 2 is the sectional structure schematic diagram of valve oil seal pressure head of the present invention;
Fig. 3 is the main TV structure schematic diagram of the base upper casing of valve oil seal pressure head of the present invention;
Fig. 4 is the sectional structure schematic diagram of the A-A direction of Fig. 3;
Fig. 5 is the side-looking structural representation of the base upper casing of valve oil seal pressure head of the present invention;
Fig. 6 is the main TV structure schematic diagram of the base lower cover of valve oil seal pressure head of the present invention;
Fig. 7 is the sectional structure schematic diagram of the B-B direction of Fig. 6;
Fig. 8 is the sectional structure schematic diagram of the C-C direction of Fig. 6;
Fig. 9 is the sectional structure schematic diagram of the oil sealing gland of valve oil seal pressure head of the present invention;
Figure 10 is the main TV structure schematic diagram of the axis of guide of valve oil seal pressure head of the present invention.
In Fig. 1～Figure 10, base (4), oil sealing gland (5), the axis of guide (6), valve oil seal (7), valve guide (8), upper casing (41), lower cover (42), by bolt (43), set bolt (44), first, cross nail hole (411), screw-threaded counterbore (412), resigning hole (421), second and cross nail hole (422), through hole (423), the first flange (51), the second flange (52), plug (61), stop lug (62), taper guide head (63) are installed.
The specific embodiment
Below in conjunction with accompanying drawing, a specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention is not subject to the restriction of the specific embodiment.It will be appreciated that, mentioned in following embodiment of the present invention " on ", D score, " left side ", " right side ", " front " and " reverse side " all take the direction shown in each figure as benchmark, these words that are used for limiting direction are only used to be convenient to explanation, do not represent the restriction to the concrete technical scheme of the present invention.
As shown in Figure 2, valve oil seal pressure head of the present invention comprises: base (4), oil sealing gland (5) and the axis of guide (6).Wherein, base (4) comprises again: the upper casing (41) and the lower cover (42) that mutually fasten, as shown in Figures 3 to 5, upper casing (41) is rewinding shape, upper and lower flat limit, on barrel, be distributed with four axial nail holes (411) of crossing, cross between nail hole (411) for four and be distributed with again screw-threaded counterbore (412).As shown in Figure 6 to 8, lower cover (42) is the flat limit circular platy structure adaptive with upper casing (41), center offers the resigning hole (421) that confession oil sealing gland (5) stretches out, and is distributed with equally excessively nail hole (422) and the through hole (423) corresponding with crossing nail hole (411) and screw-threaded counterbore (412) above.Lower cover (42) is set to the port of upper casing (41) by lower cover, and it is upper by bolt (43), through through hole (423), lower cover (42) to be fixed to upper casing (41), to form the connection chamber with oil sealing gland (5).
As shown in Figure 9, oil sealing gland (5) is tubulose, upper end has the secondary ladder radial flange connecting portion adaptive with base (4), and this connecting portion comprises: the first flange (51), and continue cambered outwards the second flange in footpath (52) by this first flange (51) middle part.The tube chamber of tubulose oil sealing gland (5) be three grades stepped, lumen diameter increases gradually from top to bottom, the large tube chamber that is wherein positioned at lower end and valve oil seal to be press-fited (7) adaptation; When press-fiting valve oil seal (7) and insert this large tube chamber, the sidewall bottom of the very close valve oil seal (7) in the sidewall bottom of large tube chamber, so that whole valve oil seal is tightly encased, make to press-fit the originally accurate positioning on oil sealing pressure head of valve oil seal in process, improve the success rate press-fiting.
As shown in figure 10, the axis of guide (6) is cylindric, the internal diameter of diameter and valve guide bushing (8) is slightly little, gap during insertion between the two is very little, make the positioning and guiding effect of the axis of guide (6) more accurate, concrete structure comprises: superposed installation plug (61), be positioned at the stop lug (62) at middle part and be positioned at the taper guide head (63) of lower end; During assembling, the adaptive plug-in mounting of upper end loculus interference of plug (61) and three grades of stepped tube chambers of tubulose oil sealing gland (5) is installed, and stop lug (62) props up the end face of middle part lumen of three grades of stepped tube chambers of tubulose oil sealing gland (5).
During assembling, the secondary ladder radial flange connecting portion of oil sealing gland (5) is placed in the connection chamber of base (4), now, the shoulder of secondary ladder radial flange connecting portion and the upper and lower wall of connection chamber and sidewall surround upper and lower two ring raceways, in these two ring raceways, be provided with ball (9), to form oil sealing gland (5), be connected with the suspension of base (4).The axis of guide (6) is installed by the upper end loculus of three grades of stepped tube chambers of plug (61) interference insertion tubulose oil sealing gland (5) is installed, now, valve oil seal (7) packs the large tube chamber in lower end of tubulose oil sealing gland (5) into, the lower end of valve oil seal (7) is stretched out in the lower end of the axis of guide (6), and while guaranteeing to press-fit, the lower end in contact valve guide bushing (8) of valve oil seal (7) is front, the taper guide head (63) of the axis of guide (6) and the guide rod of upper end thereof enter valve guide bushing (8) completely and complete complete guide-localization, thereby improve, press-fit precision and success rate.Because adopting the suspension of ball form, oil sealing gland (5) and base (4) be connected, make oil sealing gland (5) and the axis of guide (6) can in ball plane, carry out left and right fine position when keeping vertical direction, be convenient to the axis of guide (6) and timing do not press-fited to guide-localization at position and the valve oil seal pressure head of valve guide bushing (8), thereby improve, press-fit precision and success rate.Valve oil seal pressure head integral body was passed nail hole (411) and was crossed nail hole (422) by set bolt (44) and was installed on pressing machine.
Because adopting the suspension of ball form, the oil sealing gland of valve oil seal pressure head and base be connected, make oil sealing gland and the axis of guide can in ball plane, carry out left and right fine position when keeping vertical direction, be convenient to the axis of guide and timing do not press-fited to guide-localization at position and the valve oil seal pressure head of valve guide bushing, thereby improve, press-fit precision and success rate.
Disclosed is above only several specific embodiment of the present invention, and still, the present invention is not limited thereto, and the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (3)
1. a valve oil seal pressure head, comprise base, oil sealing gland, the axis of guide, it is characterized in that base (4) forms connection chamber by upper casing (41) and the lower cover (42) mutually fastening, oil sealing gland (5) is tubulose, upper end is arranged in connection chamber and forms ball suspension and connects, lower port and valve oil seal to be press-fited (7) adaptation, and the axis of guide (6) is cylindric, be inserted in oil sealing gland (5), lower end has taper guide head (63).
2. valve oil seal pressure head according to claim 1, the upper end that it is characterized in that oil sealing gland (5) has the secondary ladder radial flange connecting portion being connected with the connection chamber adaptation of base (4), the shoulder of secondary ladder radial flange connecting portion and the leg of connection chamber form upper and lower two ring raceways, in two ring raceways, are provided with ball.
3. valve oil seal pressure head according to claim 1 and 2, the tube chamber that it is characterized in that tubulose oil sealing gland (5) be three grades stepped, the axis of guide (6) comprises superposed installation plug (6) and is positioned at the stop lug (62) at middle part, the adaptive plug-in mounting of upper end loculus interference of plug (61) and three grades of stepped tube chambers of tubulose oil sealing gland (5) is installed, and stop lug (62) props up the end face of middle part lumen of three grades of stepped tube chambers of tubulose oil sealing gland (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210369918.4A CN103707035A (en) | 2012-09-29 | 2012-09-29 | Pressure head of valve oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210369918.4A CN103707035A (en) | 2012-09-29 | 2012-09-29 | Pressure head of valve oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103707035A true CN103707035A (en) | 2014-04-09 |
Family
ID=50400580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210369918.4A Pending CN103707035A (en) | 2012-09-29 | 2012-09-29 | Pressure head of valve oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103707035A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106271541A (en) * | 2016-08-26 | 2017-01-04 | 合肥江淮朝柴动力有限公司 | A kind of head valve oil sealing quick-fitting device |
| CN109249203A (en) * | 2018-11-01 | 2019-01-22 | 横店集团英洛华电气有限公司 | Disposable double-bearing press fitting device |
| CN110814707A (en) * | 2019-10-29 | 2020-02-21 | 上海天永智能装备股份有限公司 | Pressure head suitable for lid pressure equipment behind oil blanket |
-
2012
- 2012-09-29 CN CN201210369918.4A patent/CN103707035A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106271541A (en) * | 2016-08-26 | 2017-01-04 | 合肥江淮朝柴动力有限公司 | A kind of head valve oil sealing quick-fitting device |
| CN106271541B (en) * | 2016-08-26 | 2018-04-24 | 合肥江淮朝柴动力有限公司 | A kind of head valve oil sealing quick-fitting device |
| CN109249203A (en) * | 2018-11-01 | 2019-01-22 | 横店集团英洛华电气有限公司 | Disposable double-bearing press fitting device |
| CN110814707A (en) * | 2019-10-29 | 2020-02-21 | 上海天永智能装备股份有限公司 | Pressure head suitable for lid pressure equipment behind oil blanket |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202788725U (en) | Metal hard sealing oil tube head | |
| CN202607199U (en) | Pressure head of valve oil seal | |
| CN103707035A (en) | Pressure head of valve oil seal | |
| CN204214593U (en) | Pressure ga(u)ge damper | |
| CN201635726U (en) | 68-core high-temperature high-pressure plug | |
| CN205021126U (en) | Quick push in device of locking steel ball | |
| CN209981362U (en) | Acid adding kettle | |
| CN203758655U (en) | Piezoresistive pressure sensor base capable of reducing interference chip stress | |
| CN204060507U (en) | The multistage hydraulic pressurizer of single straight-cylinder | |
| CN201643229U (en) | Safety syringe needle stand structure | |
| CN204045216U (en) | Open-celled structure on reactor pressure vessel convex head | |
| CN205936846U (en) | Sensor installing bushing sleeve is pressed to internal -combustion engine jar | |
| CN203758656U (en) | Piezoresistive pressure sensor base with stress isolation groove | |
| CN206682497U (en) | A kind of freezer compressor copper pipe tension rubber plug structure | |
| CN203891815U (en) | Creep compensator | |
| CN204386575U (en) | A kind of novel charging device | |
| CN205743818U (en) | Wellhead blowout preventer | |
| CN204145142U (en) | Electric motor end cap and motor | |
| CN209228787U (en) | A kind of miniature locking locking structure of digging machine oil cylinder piston | |
| CN204390972U (en) | Corrugated pipe twist prevention structure | |
| CN203477318U (en) | Sealing element used for deepwater perpendicular connector | |
| CN202691031U (en) | Oil-leakage-preventing pad | |
| CN207334033U (en) | A kind of split type SAE flanges with good seal performance | |
| CN214660761U (en) | Novel gas well flowing back is piston for gas production | |
| CN102941968A (en) | Elastic integrated pump core |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140409 |