CN202607199U - Pressure head of valve oil seal - Google Patents
Pressure head of valve oil seal Download PDFInfo
- Publication number
- CN202607199U CN202607199U CN 201220230930 CN201220230930U CN202607199U CN 202607199 U CN202607199 U CN 202607199U CN 201220230930 CN201220230930 CN 201220230930 CN 201220230930 U CN201220230930 U CN 201220230930U CN 202607199 U CN202607199 U CN 202607199U
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- China
- Prior art keywords
- oil seal
- guide
- pressure head
- oil sealing
- valve
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- Expired - Fee Related
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Abstract
The utility model discloses a pressure head of a valve oil seal. The pressure head comprises a base, an oil seal pressing sleeve and a guide shaft, wherein the base forms a connecting cavity through an upper case and a lower case which are mutually buckled, the upper end of the tubular oil seal pressing sleeve is arranged in the connecting cavity to form a ball type suspension connection, and the lower port of the oil seal pressing sleeve is matched with the valve oil seal to be pressed; and the guide shaft is in a cylinder shape and inserted into the oil seal pressing sleeve, and the lower end of the guide shaft is provided with a cone-shaped guide head. The ball type suspension connection is adopted on the oil seal pressing sleeve of the pressure head of the valve oil seal and the base, so that left-right fine adjustment can be performed on the oil seal pressing sleeve and the guide shaft on the ball plane while the vertical direction is maintained, press fitting guide positioning is facilitated when the position of the guide shaft at a valve guide pipe does not align to the pressure head of the valve oil seal, and therefore the press fitting accuracy and success rate are improved.
Description
Technical field
The utility model relates to engine art, particularly a kind of valve oil seal pressure head.
Background technology
As shown in Figure 1, during the cylinder cap assembling, need valve oil seal 1 be fitted on the valve guide bushing 2 through the oil sealing pressure head that is connected with pressing machine.Existing oil sealing pressure head comprises: the base 31 that is connected with pressing machine, oil sealing gland 32 and the axis of guide 33.Wherein, oil sealing gland 32 is the rewinding shape, and the top is fixed on the base 31, and the middle part sidewall offers pin hole relatively, and bottom nozzle is and the ladder port of waiting to press-fit valve oil seal 1 adaptive suit.The axis of guide 33 is the multidiameter structure, and the upper end macro-axis is inserted in the inner chamber of rewinding shape oil sealing gland 32, and passes fixing through pin; The lower end of the little axle in lower end has the taper guide head, cooperates insertion with valve guide bushing 2.
When press-fiting, earlier valve oil seal 1 is enclosed within on the lower end ladder port of oil sealing gland 32 of oil sealing pressure head, at this moment; The axis of guide 33 stretches out from valve oil seal 1; The oil sealing pressure head vertically moves downward under the effect of pressing machine, can play guide effect when the axis of guide 33 at first inserts valve guide bushing 2, follows whole oil sealing pressure head and moves vertically downward in company with the axis of guide 33 valve oil seal 1 is pressed on the valve guide bushing 2; At last, whole oil sealing pressure head is got back to the origin-location vertically upward and is accomplished the whole action that press-fits.Because pin and oil sealing gland 32 middle part pin hole matched in clearance, the axis of guide 33 is connected for floating with oil sealing gland 32, makes the axis of guide 33 insert in the valve guide bushing 2 easily and plays guide effect.
But the axis of guide 33 floats with the pin of oil sealing gland 32 and is connected; Make the axis of guide 33 insert in the valve guide bushing 2 easily on the one hand and play guide effect; Make but then and make the axis of guide 33 offset from perpendicular the downward pressure of pressing machine produce cross component force, and then cause valve oil seal 1 to press partially.Also have, the endoporus that the diameter of the axis of guide 33 is compared valve guide bushing 2 is too little, makes that the positioning and guiding of the axis of guide 33 is inaccurate.And the axis of guide 33 to stretch out the length of oil sealing gland 32 too short, make that valve oil seal 1 front end had touched valve guide bushing 2 when the axis of guide 33 did not import in valve guide bushing 2 holes, cause the location inaccurate, valve oil seal 1 is prone to damaged by pressure.At last, the big oral-lateral wall of the lower end ladder port of oil sealing gland 32 is too short, can't whole valve oil seal 1 tightly be encased, and makes that to press-fit in the process 1 location on the oil sealing pressure head of valve oil seal inaccurate, causes to press-fit not in placely, and success rate is low.
The utility model content
The utility model is in order to overcome defective in the above-mentioned prior art, to provide a kind of rational in infrastructure simple, press-fiting the high valve oil seal pressure head of precision and efficient.
For achieving the above object; According to the utility model a kind of valve oil seal pressure head is provided; Comprise: base, oil sealing gland and the axis of guide, base forms connection chamber through upper casing and the lower cover that fastens each other, and the oil sealing gland is a tubulose; The upper end is arranged in the connection chamber and forms ball and suspends and connect, and lower port is with to wait to press-fit valve oil seal adaptive; The axis of guide is cylindric, is inserted in the oil sealing gland, and the lower end has the taper guide head.
In the technique scheme; The upper end of oil sealing gland has and the adaptive secondary ladder radial flange connecting portion that is connected of the connection chamber of base; The shoulder of secondary ladder radial flange connecting portion and the leg of connection chamber form two ring raceways up and down, in two ring raceways, are provided with ball.
In the technique scheme, the tube chamber of tubulose oil sealing gland be three grades stepped; The axis of guide comprises: superposed installation plug and the stop lug that is positioned at the middle part; The adaptive plug-in mounting of upper end loculus interference of three grades of stepped tube chambers of plug and 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.
Compared with prior art; The utlity model has following beneficial effect: because the oil sealing gland of valve oil seal pressure head adopts the suspension of ball form to be connected with base; Make the oil sealing gland and the axis of guide when keeping vertical direction, can on the ball plane, carry out left and right sides fine position; Be convenient to the axis of guide at the position of valve guide bushing and valve oil seal pressure head not to press-fiting guide-localization correct time, press-fit precision and success rate thereby improve.
Description of drawings
Fig. 1 is the sectional structure sketch map of existing valve oil seal pressure head;
Fig. 2 is the sectional structure sketch map of the valve oil seal pressure head of the utility model;
Fig. 3 is the main TV structure sketch map of base upper casing of the valve oil seal pressure head of the utility model;
Fig. 4 is the sectional structure sketch map of the A-A direction of Fig. 3;
Fig. 5 is the side-looking structural representation of base upper casing of the valve oil seal pressure head of the utility model;
Fig. 6 is the main TV structure sketch map of base lower cover of the valve oil seal pressure head of the utility model;
Fig. 7 is the sectional structure sketch map of the B-B direction of Fig. 6;
Fig. 8 is the sectional structure sketch map of the C-C direction of Fig. 6;
Fig. 9 is the sectional structure sketch map of oil sealing gland of the valve oil seal pressure head of the utility model;
Figure 10 is the main TV structure sketch map of the axis of guide of the valve oil seal pressure head of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the utility model is described in detail, but the protection domain that is to be understood that the utility model does not receive the restriction of the specific embodiment.It will be appreciated that; Mentioned in the following embodiment of the utility model " on ", D score, " left side ", " right side ", " front " and " reverse side " be benchmark with the direction shown in each figure all; These words that are used for limiting direction only are for the ease of explanation, do not represent the restriction to the concrete technical scheme of the utility model.
As shown in Figure 2, the valve oil seal pressure head of the utility model 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 each other fasten, to shown in Figure 5, upper casing 41 be the rewinding shape like Fig. 3, flat up and down limit, be distributed with on the barrel four axial cross 411, four in nail hole be distributed with screw-threaded counterbore 412 again between the nail hole 411.To shown in Figure 8, lower cover 42 be the flat limit circular platy structure adaptive with upper casing 41 like Fig. 6, and the center offers the resigning hole 421 that fuel feeding envelope gland 5 stretches out, be distributed with equally above with cross follow closely hole 411 and screw-threaded counterbore 412 corresponding nail hole 422 and through hole 423.Lower cover 42 is set to the port of upper casing 41 by lower cover, and passes through hole 423 through bolt 43 lower cover 42 is fixed on the upper casing 41, to form the connection chamber with oil sealing gland 5.
As shown in Figure 9, oil sealing gland 5 is a tubulose, and the upper end has the secondary ladder radial flange connecting portion adaptive with base 4, and this connecting portion comprises: first flange 51, and continue radially second flange 52 of evagination by these first flange, 51 middle parts.The tube chamber of tubulose oil sealing gland 5 be three grades stepped, lumen diameter increases gradually from top to bottom, the big tube chamber that wherein is positioned at the lower end is with to wait to press-fit valve oil seal 7 adaptive; When waiting to press-fit valve oil seal 7 and inserting this big tube chamber; The sidewall bottom of big tube chamber is very near the sidewall bottom of valve oil seal 7; So that whole valve oil seal is tightly encased, make to press-fit this accurate positioning on the oil sealing pressure head of valve oil seal in the process, improve the success rate that press-fits.
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, makes that the positioning and guiding effect of the axis of guide 6 is more accurate, and 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, 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; At this moment; The shoulder of secondary ladder radial flange connecting portion and the upper and lower wall of connection chamber and sidewall surround two ring raceways up and down, in these two ring raceways, are provided with ball 9, are connected with the suspension of base 4 to form oil sealing gland 5.The upper end loculus that the axis of guide 6 inserts three grades of stepped tube chambers of tubulose oil sealing gland 5 through 61 interference of installation plug is installed; At this moment, pack into the big tube chamber in lower end of tubulose oil sealing gland 5 of valve oil seal 7, the lower end of valve oil seal 7 is stretched out in the lower end of the axis of guide 6; And when guaranteeing to press-fit; Before the following end in contact valve guide bushing 8 of valve oil seal 7, the taper guide head 63 of the axis of guide 6 and the guide rod of upper end thereof get into valve guide bushing 8 fully and accomplish complete guide-localization, press-fit precision and success rate thereby improve.Because oil sealing gland 5 adopts the suspension of ball form to be connected with base 4; Make the oil sealing gland 5 and the axis of guide 6 when keeping vertical direction, can on the ball plane, carry out left and right sides fine position; Be convenient to the axis of guide 6 at the position of valve guide bushing 8 and valve oil seal pressure head not to press-fiting guide-localization correct time, press-fit precision and success rate thereby improve.Valve oil seal pressure head integral body was passed nail hole 411 and was crossed nail hole 422 through set bolt 44 and was installed on the pressing machine.
Because the oil sealing gland of valve oil seal pressure head adopts the suspension of ball form to be connected with base; Make the oil sealing gland and the axis of guide when keeping vertical direction, can on the ball plane, carry out left and right sides fine position; Be convenient to the axis of guide at the position of valve guide bushing and valve oil seal pressure head not to press-fiting guide-localization correct time, press-fit precision and success rate thereby improve.
More than the disclosed several specific embodiments that are merely the utility model, still, the utility model is not limited thereto, any those skilled in the art can think variation all should fall into the protection domain of the utility model.
Claims (3)
1. valve oil seal pressure head; It is characterized in that: comprising: base, oil sealing gland and the axis of guide; Said base forms connection chamber through upper casing and the lower cover that fastens each other; Said oil sealing gland is a tubulose, and the upper end is arranged in the said connection chamber and forms ball and suspends and connect, and lower port is with to wait to press-fit valve oil seal adaptive; The said axis of guide is cylindric, is inserted in the said oil sealing gland, and the lower end has the taper guide head.
2. valve oil seal pressure head according to claim 1; It is characterized in that: the upper end of said oil sealing gland has and the adaptive secondary ladder radial flange connecting portion that is connected of the said connection chamber of said base; The shoulder of said secondary ladder radial flange connecting portion and the leg of said connection chamber form two ring raceways up and down, in said two ring raceways, are provided with ball.
3. valve oil seal pressure head according to claim 1 and 2 is characterized in that: the tube chamber of said tubulose oil sealing gland be three grades stepped; The said axis of guide comprises: superposed installation plug and the stop lug that is positioned at the middle part; The adaptive plug-in mounting of upper end loculus interference of three grades of stepped tube chambers of said installation plug and tubulose oil sealing gland, said stop lug prop up the end face of middle part lumen of three grades of stepped tube chambers of tubulose oil sealing gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220230930 CN202607199U (en) | 2012-05-22 | 2012-05-22 | Pressure head of valve oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220230930 CN202607199U (en) | 2012-05-22 | 2012-05-22 | Pressure head of valve oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202607199U true CN202607199U (en) | 2012-12-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220230930 Expired - Fee Related CN202607199U (en) | 2012-05-22 | 2012-05-22 | Pressure head of valve oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202607199U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400393A (en) * | 2014-10-28 | 2015-03-11 | 芜湖世特瑞转向***有限公司 | Oil seal press-fitting equipment in steering gear shell and press-fitting technology thereof |
| CN104440028A (en) * | 2014-11-03 | 2015-03-25 | 广州科密汽车电子控制技术股份有限公司 | Tool for positioning, centering and pressing valve nozzle and method for pressing valve nozzle through tool |
| CN104551604A (en) * | 2015-01-09 | 2015-04-29 | 哈尔滨东安发动机（集团）有限公司 | Bearing mounting tool with centering function |
| CN105415273A (en) * | 2015-11-24 | 2016-03-23 | 重庆普什机械有限责任公司 | Pressing head for press-mounting of diesel engine valve seat |
-
2012
- 2012-05-22 CN CN 201220230930 patent/CN202607199U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400393A (en) * | 2014-10-28 | 2015-03-11 | 芜湖世特瑞转向***有限公司 | Oil seal press-fitting equipment in steering gear shell and press-fitting technology thereof |
| CN104440028A (en) * | 2014-11-03 | 2015-03-25 | 广州科密汽车电子控制技术股份有限公司 | Tool for positioning, centering and pressing valve nozzle and method for pressing valve nozzle through tool |
| CN104440028B (en) * | 2014-11-03 | 2016-10-19 | 广州瑞立科密汽车电子股份有限公司 | A kind of valve nozzle positions auxiliary positive press-fitting tool and the method applying this frock to press-fit valve nozzle |
| CN104551604A (en) * | 2015-01-09 | 2015-04-29 | 哈尔滨东安发动机（集团）有限公司 | Bearing mounting tool with centering function |
| CN105415273A (en) * | 2015-11-24 | 2016-03-23 | 重庆普什机械有限责任公司 | Pressing head for press-mounting of diesel engine valve seat |
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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: 20121219 Termination date: 20160522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |