CN101983833B - Engine air valve locking plate pressure head - Google Patents
Engine air valve locking plate pressure head Download PDFInfo
- Publication number
- CN101983833B CN101983833B CN201010524498A CN201010524498A CN101983833B CN 101983833 B CN101983833 B CN 101983833B CN 201010524498 A CN201010524498 A CN 201010524498A CN 201010524498 A CN201010524498 A CN 201010524498A CN 101983833 B CN101983833 B CN 101983833B
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- Prior art keywords
- pressure head
- ram
- locking plate
- spring
- reed
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Abstract
The invention discloses an engine air valve locking plate pressure head. A guide positioning shaft, an inner pressure head spring and a positioning shaft spring are arranged in an outer pressure head; a guide screw plug is arranged in an inner hole on the upper part of the outer pressure head, an inner pressure head is arranged in an inner hole on the lower part of the outer pressure head, and the bottom surface of the outer pressure head is provided with a positioning groove; and the peripheral wall of the positioning groove is provided with at least two positioning holes distributed uniformly according to the circumference, a steel ball is arranged in each positioning hole, each steel ball is provided with a reed, the upper part of the reed is fixed with the outer pressure head, and the lower part of the reed is pressed on the corresponding steel bal so that the small part of ball body of the steel ball is positioned in the positioning groove. The engine air valve locking plate pressure head has the advantages of simple operation, low labor intensity of workers and high work efficiency, and is not easy to damage an air valve, an air valve locking plate and an upper spring seat; and the upper spring seat and an air valve rod are positioned more accurately, and the locking plate is pressed in place more easily, so the locking plate is effectively prevented from falling in the running process of an engine, the locking plate is not popped up or inclined, and the assembly efficiency is improved.
Description
Technical field
The invention belongs to technical field of tooling clamps, specifically, particularly the pressure head of engine valve locking plate is used for valve split collets is press-fited in the valve and the spring seat of honour.
Background technology
In the engine assembling process, it is a very important link that valve split collets is installed.At present, the valve split collets fit that each engine production producer is adopted is: locking plate is loaded in the spring seat of honour, is positioned on the valve spring again, press-fit through press.The defective of this kind press-fit approach is: valve spring freely swinging on cylinder cap is bigger, and the axial line of valve stem and the spring seat of honour and pressure head location is inaccurate when causing press-fiting, and has increased the difficulty of assembling; Cause locking plate press-loading not in place easily, locking plate ejects in the time of usually can press-fiting, or it is stressed crooked to press-fit in the process locking plate; Cause press-fiting and to accomplish smoothly; Prolonged installation time on the one hand, the efficient that press-fits is lower, on the other hand; Increased workman's workload, and workman's proficiency has been had relatively high expectations.In addition, in the process that press-fits, the easy bounce or jump of guide-localization axle in the pressure head also can influence the efficient and the accuracy of locking plate press-loading.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of pressure head that valve split collets accurately is press-fit into place.
Technical scheme of the present invention is following: a kind of engine valve locking plate pressure head; Comprise guiding plug screw, outer ram, guide-localization axle, inner ram spring, locating shaft spring, inner ram, reed and steel ball; In outer ram, be provided with guide-localization axle, inner ram spring and locating shaft spring; The guiding plug screw is installed in the endoporus on outer ram top, in the endoporus of outer ram bottom inner ram is installed, and the bottom surface of outer ram is provided with locating slot.On the perisporium of said locating slot, be provided with at least two by the equally distributed locating hole of circumference; Steel ball all is housed in each locating hole; Each steel ball is equipped with a reed; The top and the outer ram of said reed fix, and the bottom compressing of reed makes the fraction ball body of steel ball be positioned at said locating slot on the steel ball of correspondence.
Adopt above technical scheme, steel ball and reed with matching are formed self-locking mechanism.Be provided with at least two in the periphery of locating slot and press the equally distributed self-locking mechanism of circumference; Steel ball in each self-locking mechanism is under the effect of reed elastic force; Can the spring seat of honour and the locking plate in the locating slot of packing into be positioned, the axial line accurate positioning of valve stem and the spring seat of honour and pressure head when having guaranteed like this to press-fit can prevent effectively that the spring seat of honour from coming off in the process that press-fits; Prevented that simultaneously valve spring from freely swinging on cylinder cap, made press-fiting of valve collet faster, accurate.
In order to strengthen stability and reliability to the spring seat of honour and locking plate location; Be convenient to steel ball simultaneously and install, prevent that steel ball from coming off, on the perisporium of said locating slot, be provided with three by the equally distributed locating hole of circumference; This locating hole is taper, and the inner orifice of locating hole is less than outer aperture.
Reed is installed for ease; It is firm that reed is connected with outer ram, and guarantee the flexibility and the reliability of steel ball motion, and the top of said reed and the periphery of outer ram fit; And, has the gap between the bottom of reed and the periphery of outer ram through bolt.
The upper end of said guide-localization axle is stretched in the installing hole of guiding plug screw, and inner ram is passed in the lower end of guide-localization axle, and stretches out the bottom surface of outer ram; The suit locating shaft spring at the middle part of said guide-localization axle; The upper end of this locating shaft spring is stretched in the installing hole of guiding plug screw; And with this installing hole in the step surface butt, the boss butt of the lower end of locating shaft spring and guide-localization axle bottom, this boss reclines with the end face of inner ram mutually; Said inner ram spring is positioned at the outside of locating shaft spring, the bottom surface butt of the upper end of this inner ram spring and guiding plug screw, and the lower end of inner ram spring and the end face of inner ram connect.Above structure is assembled on the one hand easily, is gone slick; On the other hand, the bottom surface of outer ram is stretched out in the lower end of guide-localization axle, when press-fiting locking plate; The lower end of guide-localization axle can be stretched in the spring seat of honour; Play guide-localization, ejected by the active force of valve stem or take place crookedly, avoided the locking plate assembling not in place.Simultaneously, positioning accuracy by guiding plug screw and inner ram location, has been improved respectively in the top and bottom of guide-localization axle.
The invention has the beneficial effects as follows:
1, make pressure head have guide function, simple to operate, working strength of workers is little, high efficiency;
Not fragile valve, valve split collets and the spring seat of honour when 2, press-fiting;
3, during locking plate press-loading, the spring seat of honour and valve stem location are more accurate, and locking plate more is prone to be press-fit into place, and has prevented that effectively locking plate from coming off in engine operation process;
4, locking plate can not eject or crooked when assembling, has improved efficiency of assembling.
5, property easy to use, safe is good.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the enlarged drawing of looking up of Fig. 1.
Fig. 3 press-fits the state diagram of locking plate for the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further:
Like Fig. 1, shown in Figure 2; The present invention is made up of guiding plug screw 1, outer ram 2, guide-localization axle 3, inner ram spring 4, locating shaft spring 5, inner ram 6, bolt 7, reed 8 and steel ball 9; Wherein outer ram 2 offers the step endoporus along its direction of axis line; The endoporus on outer ram 2 tops is a thread segment, and packing in the endoporus on outer ram 2 tops in the bottom of said guiding plug screw 1, is fixed together through being threaded.The top of guiding plug screw 1 be circle or square, adapts with the pilot hole of press lifting shaft.Middle part in outer ram 2 bottom surfaces offers locating slot 2a, and inner ram 6 is installed in the endoporus of outer ram 2 bottoms, and the bottom land of locating slot 2a is passed in the lower end of this inner ram 6, and is arranged in locating slot 2a, and the bottom surface of inner ram 6 is concordant with the bottom surface of outer ram 2.The top of said inner ram 6 has the annular stop platform, and the step surface in the bottom surface of this limiting stand and outer ram 2 endoporus fits spacing.
From Fig. 1, Fig. 2, can know, in outer ram 2, be provided with guide-localization axle 3, inner ram spring 4 and locating shaft spring 5.Wherein the upper end of guide-localization axle 3 is stretched in the installing hole of guiding plug screw 1 direction of axis line.The centre bore of inner ram 6 is passed in the lower end of guide-localization axle 3, and stretches out the bottom surface of outer ram 2.The suit locating shaft spring 5 at the middle part of said guide-localization axle 3; The upper end of this locating shaft spring 5 is stretched in the installing hole of guiding plug screw 1; And with this installing hole in the step surface butt; The boss 3a butt that the lower end of locating shaft spring 5 and guide-localization axle 3 bottoms are integrally formed, this boss 3a reclines with the end face of inner ram 6 mutually.Said inner ram spring 4 is positioned at the outside of locating shaft spring 5, the bottom surface butt of the upper end of this inner ram spring 4 and guiding plug screw 1, and the end face of the lower end of inner ram spring 4 and inner ram 6 connects.
From Fig. 1, Fig. 2, open and can know, on the perisporium of outer ram 2 bottom locating slot 2a, be provided with at least two by the equally distributed locating hole of circumference, the number of locating hole can be two, three, four or more, is preferably three in the present embodiment.Said locating hole is taper, and the inner orifice of locating hole is less than outer aperture.Steel ball 9 all is housed in each locating hole; The outside of each steel ball 9 is equipped with a reed 8; The periphery of the top of said reed 8 and outer ram 2 bottoms fits, and fixing through bolt 7, has certain interval between the periphery of the bottom of reed 8 and outer ram 2 bottoms; And the compressing of the bottom of reed 8 makes the fraction ball body of steel ball 9 be positioned at said locating slot 2a on the steel ball 9 of correspondence.
Operation principle of the present invention is following:
Like Fig. 3 and combine Fig. 1, shown in Figure 2, valve split collets 11 is packed in 10 holes, the spring seat of honour, integral body is positioned among the outer ram 2 locating slot at bottom 2a from the bottom up again; The spring seat of honour 10 promotes steel ball 9; The elastic force that makes steel ball 9 overcome reed 8 outwards moves, in locating slot 2a is packed at the spring seat of honour 10 fully into, under the elastic force effect of reed 8; Each steel ball inwardly motion resets, together to 10 location, the spring seat of honour; Meanwhile, the lower end of guide-localization axle 3 is stretched in the spring seat of honour 10, to 11 location of the valve split collets in the spring seat of honour 10.Treat that the spring seat of honour 10 and valve split collets 11 are after installing on the pressure head; Cylinder head is placed on the special-purpose anchor clamps in pressure head below, the valve 12 (pressure head axial line with valve axial line overlap) of pressure head on the cylinder head, the lifting shaft of controlling press moves downward; The lifting shaft of press drives pressure head and presses down; The spring seat of honour 10 contacts with valve spring 13 on the valve 12, compression valve spring 13, and guide-localization axle 3 contacts with valve 12; Continue to exert pressure downwards; Valve 12 keeps motionless, and under the pressure head active force, valve 12 promotes guide-localization axle 3 and moves up; And the spring seat of honour 10 moves down with valve split collets 11; Inner ram 6 receives the active force of inner ram spring 4 simultaneously, valve split collets 11 is pushed in the annular groove of valve 12, and valve split collets 11 is press-fit into place.Upwards lift pressure head, because valve split collets 11, valve 12 and the spring seat of honour 10 are locked, the spring seat of honour 10 extruding steel balls 9, steel ball 9 actuating springs 8 make the spring seat of honour 10 withdraw from pressure head simultaneously, have accomplished the whole process that press-fits thus.
Claims (3)
1. engine valve locking plate pressure head; In outer ram (2), be provided with guide-localization axle (3), inner ram spring (4) and locating shaft spring (5); Guiding plug screw (1) is installed in the endoporus on outer ram (2) top, in the endoporus of outer ram (2) bottom inner ram (6) is installed, and the bottom surface of outer ram (2) is provided with locating slot (2a); It is characterized in that: on the perisporium of said locating slot (2a), be provided with at least two by the equally distributed locating hole of circumference; Steel ball (9) all is housed in each locating hole, and the outside of each steel ball (9) is equipped with a reed (8), and the top of said reed (8) and outer ram (2) fix; The bottom compressing of reed (8) makes the fraction ball body of steel ball (9) be positioned at said locating slot (2a) on the steel ball (9) of correspondence; The upper end of said guide-localization axle (3) is stretched in the installing hole of guiding plug screw (1), and inner ram (6) is passed in the lower end of guide-localization axle (3), and stretches out the bottom surface of outer ram (2); At the middle part of said guide-localization axle (3) suit locating shaft spring (5); The upper end of this locating shaft spring (5) is stretched in the installing hole of guiding plug screw (1); And with this installing hole in the step surface butt; Boss (3a) butt of the lower end of locating shaft spring (5) and guide-localization axle (3) bottom, this boss (3a) reclines with the end face of inner ram (6) mutually; Said inner ram spring (4) is positioned at the outside of locating shaft spring (5), the bottom surface butt of the upper end of this inner ram spring (4) and guiding plug screw (1), and the end face of the lower end of inner ram spring (4) and inner ram (6) connects.
2. engine valve locking plate pressure head according to claim 1 is characterized in that: on the perisporium of said locating slot (2a), be provided with three by the equally distributed locating hole of circumference, this locating hole is taper, and the inner orifice of locating hole is less than outer aperture.
3. engine valve locking plate pressure head according to claim 1; It is characterized in that: the periphery of the top of said reed (8) and outer ram (2) fits; And fixing through bolt (7), have the gap between the periphery of the bottom of reed (8) and outer ram (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010524498A CN101983833B (en) | 2010-10-29 | 2010-10-29 | Engine air valve locking plate pressure head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010524498A CN101983833B (en) | 2010-10-29 | 2010-10-29 | Engine air valve locking plate pressure head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101983833A CN101983833A (en) | 2011-03-09 |
| CN101983833B true CN101983833B (en) | 2012-09-26 |
Family
ID=43641000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010524498A Expired - Fee Related CN101983833B (en) | 2010-10-29 | 2010-10-29 | Engine air valve locking plate pressure head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101983833B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102806453B (en) * | 2012-08-16 | 2015-10-28 | 杭州新坐标科技股份有限公司 | A kind of locker clamping instrument |
| CN106670781B (en) * | 2015-11-09 | 2018-12-14 | 中国科学院沈阳计算技术研究所有限公司 | Valve split collets strip automatic poking fills formula pressure head |
| CN107553110A (en) * | 2017-11-06 | 2018-01-09 | 河南华洋发动机制造有限公司 | Engine air valve locking plate press mounting tool |
| CN110000539B (en) * | 2018-07-25 | 2022-07-08 | 宁波优微智能科技有限公司 | Location riveting frock |
| CN109974564B (en) * | 2019-05-06 | 2024-05-03 | 广西玉柴机器股份有限公司 | Journal oil hole edge detection device |
| CN110605565A (en) * | 2019-09-17 | 2019-12-24 | 坤泰车辆系统（常州）有限公司 | Pressure loss prevention double-pressure-head press with self-locking function and pressing-in method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999051388A1 (en) * | 1998-04-06 | 1999-10-14 | Hitachi, Ltd. | Method of coaxially connecting precision parts comprising a plurality of members, method of assembling fuel injection nozzle, and fuel injection nozzle |
| CN101279419A (en) * | 2008-05-21 | 2008-10-08 | 大连智云自动化装备股份有限公司 | Cylinder cap air valve spring cover, locking plate press-loading head |
| CN101722410A (en) * | 2008-10-28 | 2010-06-09 | 力帆实业(集团)股份有限公司 | Pressure head for mounting engine valve lock clamp |
| CN201856074U (en) * | 2010-10-29 | 2011-06-08 | 力帆实业(集团)股份有限公司 | Pressing head structure |
-
2010
- 2010-10-29 CN CN201010524498A patent/CN101983833B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999051388A1 (en) * | 1998-04-06 | 1999-10-14 | Hitachi, Ltd. | Method of coaxially connecting precision parts comprising a plurality of members, method of assembling fuel injection nozzle, and fuel injection nozzle |
| CN101279419A (en) * | 2008-05-21 | 2008-10-08 | 大连智云自动化装备股份有限公司 | Cylinder cap air valve spring cover, locking plate press-loading head |
| CN101722410A (en) * | 2008-10-28 | 2010-06-09 | 力帆实业(集团)股份有限公司 | Pressure head for mounting engine valve lock clamp |
| CN201856074U (en) * | 2010-10-29 | 2011-06-08 | 力帆实业(集团)股份有限公司 | Pressing head structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101983833A (en) | 2011-03-09 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20110309 Assignee: Chongqing Lifan Automobile Engine Co., Ltd. Assignor: Lifan Industry (Group) Co., Ltd. Contract record no.: 2015500000014 Denomination of invention: Engine air valve locking plate pressure head Granted publication date: 20120926 License type: Exclusive License Record date: 20150528 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20191029 |
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| CF01 | Termination of patent right due to non-payment of annual fee |