CN204018370U - Piston ring special roller group - Google Patents
Piston ring special roller group Download PDFInfo
- Publication number
- CN204018370U CN204018370U CN201420480928.XU CN201420480928U CN204018370U CN 204018370 U CN204018370 U CN 204018370U CN 201420480928 U CN201420480928 U CN 201420480928U CN 204018370 U CN204018370 U CN 204018370U
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- CN
- China
- Prior art keywords
- annular
- piston ring
- roll
- groove
- roller group
- 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.)
- Expired - Fee Related
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- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a kind of piston ring special roller group, comprise king roller and secondary roll, the main shaft that described king roller and secondary roll include cylindric roll body and pass roll body and coaxially arrange with it, the side of described king roller is provided with the convex annular edge with the coaxial setting of main shaft, described secondary roll side and convex annular are along the annular big groove offering on inconsistent position with its coaxial setting, described annular big groove bottom land place offer two all with the little groove of annular of its coaxial setting, between described two little grooves of annular, interval arranges.Piston ring roll of the present utility model, the setting by convex annular edge, annular big groove and annular little groove, just can disposablely become the needed shape of piston ring by round wire direct cold rolling.
Description
Technical field
The utility model relates to a kind of cold-rolling mill parts, particularly a kind of piston ring special roller group.
Background technology
The application of piston ring in piston of automobile cylinder very extensively, yet because its special section structure (is similar to " Jiong " shape of a mirror writing, but have different on a small quantity from it), so current existing piston ring is all to adopt the mode of casting to make, but how much foundry goods its inside after casting all can have some bubbles, will cause like this insufficient strength of piston ring high, be the trend developing at present, and cold-rolling mill is topmost equipment in forging process so piston ring is forged.
Having notification number is that the patent of CN 103331301A discloses a kind of screw-thread steel wire rod reducing mill, by frame, home roll frame, secondary roller frame forms, the upper end of described frame is provided with home roll frame, the right side of home roll frame is provided with secondary roller frame, in home roll frame, be provided with king roller, in secondary roller frame, be provided with secondary roll, the upper end of secondary roller frame is provided with fixed head, fixed head is provided with adjustment tank, in adjustment tank, be provided with fixed adjustment bolt, the rear end of secondary roller frame is provided with gear-box, the structure of its king roller and secondary roll is cylindric, and all in the side of its cylinder, at it, be about on half position of length a bulge loop (with reference to its Figure of description) is set, in work, the convex edge of two rolls is inconsistent, thereby the roll stacks of this structure can well shut out the steel bar of a plane, but this cold-rolling mill cannot well forge the shape of piston ring, after needing first steel wire to be forged into flat, by other equipment, be processed into the needed shape of piston ring again, trouble very, increased the cost of manufacture of piston ring.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of need to forge piston ring shape after repeatedly cold rolling, can reduce the piston ring special roller group of piston ring cost of manufacture.
For achieving the above object, the utility model provides following technical scheme: a kind of piston ring special roller group, comprise king roller and secondary roll, the main shaft that described king roller and secondary roll include cylindric roll body and pass roll body and coaxially arrange with it, the side of described king roller is provided with the convex annular edge with the coaxial setting of main shaft, described secondary roll side and convex annular are along the annular big groove offering on inconsistent position with its coaxial setting, described annular big groove bottom land place offer two all with the little groove of annular of its coaxial setting, between described two little grooves of annular, interval arranges.
By adopting technique scheme, so just can be by convex annular along becoming flat with the bottom land of annular big groove by steel wire is cold rolling, simultaneously again by the effect of convex annular edge and annular little groove, just can will by the edge of the steel wire of cold rolling one-tenth flat, be carried out shaping, make its perk, like this after process roll stacks of the present utility model is repeatedly cold rolling, just can be effectively by " Jiong " shape of the cold rolling one-tenth mirror writing of steel wire, so do not need again the cold rolling one-tenth of steel wire is plane after again to its additional processing, reduced the cost of manufacture of piston ring.
The utility model is further set to: the little groove of described annular cross section is isosceles trapezoid.
By adopting technique scheme, by isosceles trapezoid is arranged to in the cross section of the little groove of annular, just can after once cold rolling, the cold rolling one-tenth of steel wire more be approached to the needed shape of piston ring, reduce the cold rolling number of times of steel wire, reduce the production cost of piston ring.
In one embodiment, the cross section on described convex annular edge is isosceles trapezoid, and the minor face on described convex annular edge is towards annular big groove setting.
Cross section by convex annular edge is set to isosceles trapezoid, in cold rolling process, just can be good at extruded cords, after the once cold rolling of steel wire, the cold rolling one-tenth of steel wire is more approached to the needed shape of piston ring, reduce the cold rolling number of times of steel wire, reduce the production cost of piston ring.
In another embodiment, the cross section on described convex annular edge is semicircle, and its axial external diameter is less than or equal to the axial width of annular big groove.
Cross section by convex annular edge is set to semicircle, in the production process of roll stacks, just seem so more simple aspect, reduced the production cost of piston ring.
Accompanying drawing explanation
Fig. 1 is piston ring special roller group overall schematic of the present utility model;
Fig. 2 is front view shown in Fig. 1;
Fig. 3 is the A portion enlarged drawing of Fig. 2;
Fig. 4 is the overall structure figure of Fig. 2 embodiment 1;
Fig. 5 is the overall structure figure of Fig. 2 embodiment 2.
In figure: 1, king roller; 2, secondary roll; 3, main shaft; 4, roll body; 5, convex annular edge; 61, annular big groove; 62, annular little groove.
The specific embodiment
Shown in Fig. 3, a kind of piston ring special roller group of the present embodiment, comprise king roller 1 and secondary roll 2, the main shaft 3 that described king roller 1 and secondary roll 2 include cylindric roll body 4 and pass roll body 4 and coaxially arrange with it, the side of described king roller 1 is provided with the convex annular of the coaxial setting of main shaft 3 along 5, described secondary roll 2 sides and convex annular are along the annular big groove 61 offering on 5 inconsistent positions with the coaxial setting of its main shaft 3, described annular big groove 61 bottom land places offer two all with the little groove 62 of annular of the coaxial setting of its main shaft 3, between the little groove 62 of described two annulars, interval arranges.
By adopting technique scheme, in the process of roll stacks cold rolling wire, first king roller 1 will be conflicted with secondary roll 2, convex annular will be embedded in annular big groove 61 along 5, convex annular along 5 and annular big groove 61 and annular little groove 62 between will form a space that is shaped as " Jiong ", in the process of passing through at steel wire, steel wire first will be subject to convex annular along 5 with the squeezing action of annular big groove 61 bottom lands, after repeatedly cold rolling, slowly become a flat steel band, when becoming flat steel band, by convex annular along 5 and annular little groove 62 between effect, by the perk slowly of the edge of the steel band of flat, finally form " Jiong " shape, it is cold rolling that its whole process only need to be used this roll stacks to carry out repeatedly, do not need other extra equipment further to process steel wire, effectively reduce the cost of manufacture of piston ring.
Wherein the convex annular on king roller 1 can adopt following two kinds of embodiment to reduce the cost of manufacture of piston ring along 5 shapes.
Shown in Fig. 4, convex annular is arranged to isosceles trapezoid shape along 5 cross sections, like this in cold rolling process, first the bottom land of the minor face of this isosceles trapezoid and annular big groove 61 carries out squeezing action to steel wire, by the flat device of the cold rolling one-tenth of steel wire, the minor face of this isosceles trapezoid carries out squeezing action with the little groove 62 of annular simultaneously, make steel wire its shape after once cold rolling more approach the shape of piston ring, so just can effectively reduce the cold rolling number of times of piston ring, reduce the production cost of piston ring.
Shown in Fig. 5, convex annular is arranged to semi-circular shape along 5 cross sections, its course of work is similar to the above, different after steel wire is flat owing to being that half-terete convex annular is carried out squeezing action along 5 with 62 pairs of steel wires of annular little groove, so in the steel wire edge perk of flat, need to carry out repeatedly cold rolling can be by its cold rolling one-tenth flat, thereby its cold rolling number of times will be more than last embodiment, but in making the process of roll stacks, on the side of king roller 1, set out convex annular along 5 will seem very simple, so so also reduced the production cost of piston ring.
In sum, by convex annular along 5, the setting of annular big groove 61 and annular little groove 62, in making the process of piston ring, just only need to adopt this cold rolling unit, do not need other extra equipment, effectively reduce the cost of manufacture of piston ring.
The above is only preferred embodiment of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. a piston ring special roller group, comprise king roller and secondary roll, the main shaft that described king roller and secondary roll include cylindric roll body and pass roll body and coaxially arrange with it, it is characterized in that: the side of described king roller is provided with the convex annular edge with the coaxial setting of main shaft, described secondary roll side and convex annular are along the annular big groove offering on inconsistent position with its coaxial setting, described annular big groove bottom land place offer two all with the little groove of annular of its coaxial setting, between described two little grooves of annular, interval arranges.
2. piston ring special roller group according to claim 1, is characterized in that: the little groove of described annular cross section is isosceles trapezoid.
3. piston ring special roller group according to claim 1 and 2, is characterized in that: the cross section on described convex annular edge is isosceles trapezoid, and the minor face on described convex annular edge is towards annular big groove setting.
4. piston ring special roller group according to claim 1 and 2, is characterized in that: the cross section on described convex annular edge is for semicircle, and its axial external diameter is less than or equal to the axial width of annular big groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420480928.XU CN204018370U (en) | 2013-12-24 | 2014-08-25 | Piston ring special roller group |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320858655 | 2013-12-24 | ||
| CN201320858655.3 | 2013-12-24 | ||
| CN201420480928.XU CN204018370U (en) | 2013-12-24 | 2014-08-25 | Piston ring special roller group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204018370U true CN204018370U (en) | 2014-12-17 |
Family
ID=52058282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420480928.XU Expired - Fee Related CN204018370U (en) | 2013-12-24 | 2014-08-25 | Piston ring special roller group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204018370U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269836A (en) * | 2013-06-07 | 2017-10-20 | 株式会社理研 | Piston ring raw material |
-
2014
- 2014-08-25 CN CN201420480928.XU patent/CN204018370U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269836A (en) * | 2013-06-07 | 2017-10-20 | 株式会社理研 | Piston ring raw material |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20170825 |