CN202824144U - Compound bending roller hydraulic cylinder - Google Patents
Compound bending roller hydraulic cylinder Download PDFInfo
- Publication number
- CN202824144U CN202824144U CN 201220362611 CN201220362611U CN202824144U CN 202824144 U CN202824144 U CN 202824144U CN 201220362611 CN201220362611 CN 201220362611 CN 201220362611 U CN201220362611 U CN 201220362611U CN 202824144 U CN202824144 U CN 202824144U
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Abstract
The utility model discloses a compound bending roller hydraulic cylinder, and relates to the technical field of metal calendering. A movable piston rod (4) is arranged in an inner hole of an open end of a cylinder body (8); a sealing member is arranged between the outer edge surface of one end of the piston rod (4) and the inner circle surface of the inner hole of the cylinder body (8); a cylinder body extension rod (9) is arranged at the sealing end of the cylinder body (8); a connecting hole B (10) is formed in the outer edge surface of the cylinder body extension rod (9); and a cylinder body end cover (2) is arranged at the open end of the cylinder body (8). The compound bending roller hydraulic cylinder has the advantages of simple structure, convenience in operation, and the like; four compound bending roller hydraulic cylinders are used to replace the existing eight positive bending hydraulic cylinders and eight negative bending hydraulic cylinders to exert positive and negative bending effects in practical use; in addition, a distribution mode is simple; the quantity of hydraulic pipelines is reduced effectively; a placing structure is simplified; and the comprehensive manufacturing cost is lowered.
Description
[technical field]
The utility model relates to the rolling metal technical field, is specifically related to a kind of compound bowed roller hydraulic cylinder.
[background technology]
Known, in existing strip-mill strip, often use the hydraulic bending roll technology and carry out the control of product template, wherein on four-high mill in the used typical roll-bending device, just curved hydraulic cylinder and negative curved hydraulic cylinder all are separately independently, that is to say the negative curved hydraulic cylinder of eight just curved hydraulic cylinders and eight totally ten six roll-bending cylinders are arranged respectively in the roll-bending device, because the roll-bending device oil cylinder quantity of design is more like this, the also corresponding meeting of fluid pressure line is very complicated, as you know, it is quite to bother that hydraulic system is investigated when occurring leaking, be the maintenance or maintenance cost all can be very high, most importantly because each roll-bending cylinder has a hydraulic oil turnover loop, operating personnel also can comparatively bother in follow-up roller adjustment process to milling train.
[summary of the invention]
In order to overcome above-mentioned technical problem, the utility model provides a kind of compound bowed roller hydraulic cylinder, by the sealed end at cylinder body the cylinder body extension rod is set and realizes reducing the quantity of using hydraulic cylinder in the roll-bending device, the utlity model has simple in structure, easy for installation, be convenient to the advantages such as maintenance.
To achieve these goals, the present invention adopts following technical scheme.
A kind of compound bowed roller hydraulic cylinder, comprise cylinder end caps, piston rod and cylinder body, be provided with movable piston rod in the endoporus of described cylinder body openend, be provided with seal between the outer edge surface of described piston rod one end and the inner headed face of cylinder inner bore, sealed end at cylinder body is provided with the cylinder body extension rod, be provided with connecting hole B on the outer edge surface of described cylinder body extension rod, be provided with cylinder end caps at the openend of cylinder body.
Described compound bowed roller hydraulic cylinder, described seal are sealing ring B or shaft seal.
Described compound bowed roller hydraulic cylinder is provided with two step B that are parallel to each other on the outer edge surface of described cylinder body extension rod, described step B is provided with connecting hole B.
Described compound bowed roller hydraulic cylinder, an end of described piston rod and the endoporus of cylinder body are slidingly matched, and are provided with step A on the outer edge surface of the other end of piston rod, are provided with connecting hole A on the described step A.
Described compound bowed roller hydraulic cylinder, described cylinder end caps is passed the openend that piston rod is fixed to cylinder body by the endoporus that the middle part arranges, and the endoporus of described piston rod and cylinder end caps is slidingly matched.
Described compound bowed roller hydraulic cylinder is provided with sealing ring A between described cylinder end caps and the cylinder body.
Described compound bowed roller hydraulic cylinder, described cylinder end caps and piston rod adopt shaft seal or sealing ring sealing.
Described compound bowed roller hydraulic cylinder, the outer edge surface of described cylinder body extension rod are set to circle or ellipse or quadrangle or rhombus or polygonal.
Described compound bowed roller hydraulic cylinder is respectively arranged with what oil circuit interface B of oil circuit interface A on the described cylinder body.
Described compound bowed roller hydraulic cylinder, the outer edge surface of described cylinder body are set to circle or ellipse or quadrangle or rhombus or polygonal.
Compound bowed roller hydraulic cylinder described in the utility model, have simple in structure, the advantages such as convenient operation, can be with four compound bowed roller hydraulic cylinders described in the utility model in practice, just can replace existing eight just curved hydraulic cylinders and eight positive and negative roller effects that negative curved hydraulic cylinder plays, and layout type is simple, has effectively reduced the quantity of fluid pressure line, placing structure is simplified, reduced comprehensive manufacturing cost etc.
[description of drawings]
Fig. 1 is the cylinder structure schematic diagram;
Among the figure: 1, sealing ring A; 2, cylinder end caps; 3, shaft seal; 4, piston rod; 5, step A; 6, connecting hole A; 7, oil circuit interface A; 8, cylinder body; 9, cylinder body extension rod; 10, connecting hole B; 11, step B; 12, sealing ring B; 13, oil circuit interface B.
[specific embodiment]
Can explain in more detail the utility model by the following examples, but the utility model is not limited to the following examples;
By reference to the accompanying drawings 1, a kind of compound bowed roller hydraulic cylinder, comprise cylinder end caps 2, piston rod 4 and cylinder body 8, be provided with movable piston rod 4 in the endoporus of described cylinder body 8 openends, the outer edge surface of described cylinder body 8 is set to circle or ellipse or quadrangle or rhombus or polygonal, be respectively arranged with what oil circuit interface B13 of oil circuit interface A7 at cylinder body 8, be provided with seal between the inner headed face of the outer edge surface of described piston rod 4 one ends and cylinder body 8 endoporus, described seal is sealing ring B12 or shaft seal, sealed end at cylinder body 8 is provided with cylinder body extension rod 9, the outer edge surface of described cylinder body extension rod 9 is set to circle or ellipse or quadrangle or rhombus or polygonal, outer edge surface at cylinder body extension rod 9 is provided with two step B11 that are parallel to each other, described step B11 is provided with connecting hole B10, be provided with connecting hole B10 on the outer edge surface of described cylinder body extension rod 9, be provided with cylinder end caps 2 at the openend of cylinder body 8.
Described compound bowed roller hydraulic cylinder, an end of described piston rod 4 and the endoporus of cylinder body 8 are slidingly matched, and are provided with step A5 on the outer edge surface of the other end of piston rod 4, are provided with connecting hole A6 on the described step A5.
Described compound bowed roller hydraulic cylinder, described cylinder end caps 2 is passed the openend that piston rod 4 is fixed to cylinder body 8 by the endoporus that the middle part arranges, between cylinder end caps 2 and cylinder body 8, be provided with sealing ring A1, described piston rod 4 is slidingly matched with the endoporus of cylinder end caps 2, and described cylinder end caps 2 adopts shaft seal 3 or sealing ring sealing with piston rod 4.
Compound bowed roller hydraulic cylinder described in the utility model, wherein the head design of piston rod 4 has the homalocephalus shape, the homalocephalus position is processed with manhole, cylinder body 8 is except at one end possessing traditional tubular construction, be provided with cylinder body extension rod 9 at the other end, end at cylinder body extension rod 9 is designed with homalocephalus, and the homalocephalus position is processed with manhole, and the circular hole on the circular hole on the piston rod 4 and the cylinder body extension rod 9 is used for and the wing of working roll bearing block both sides connects.
Compound bowed roller hydraulic cylinder described in the utility model does not connect with mill housing, direct and roll device is linked together, for compound bowed roller hydraulic cylinder described in the utility model is well connected with working roll bearing block, the wing at working roll bearing block two ends need to process one section cylinder, and the circular hole that arranges respectively on this cylinder and piston rod 4 and the cylinder body extension rod 9 meets certain matching relationship.
The hydraulic coupling that produces when the rodless cavity of compound bowed roller hydraulic cylinder described in the utility model is during greater than rod chamber, piston rod 4 is subjected to upwards hydraulic coupling, the top working roll bearing block is produced power upwards, the cylinder body extension rod 9 that arranges on the cylinder body 8 is subjected to downward hydraulic coupling with cylinder body 8, the bottom working roll bearing block is produced downward power, namely finish just curved effect; Otherwise, the hydraulic coupling that produces when the rod chamber of compound bowed roller hydraulic cylinder is during greater than rodless cavity, piston rod 4 is subjected to downward hydraulic coupling, the top working roll bearing block is produced downward power, the cylinder body extension rod 9 that arranges on the cylinder body 8 is subjected to upwards hydraulic coupling with cylinder body 8, bottom working roll is produced power upwards, namely finish negative curved effect.
The utility model does not describe part in detail and is prior art.
The embodiment that selects in this article for open the purpose of this utility model currently thinks to suit, and still, will be appreciated that the utility model is intended to comprise that all belong to all changes and the improvement of the embodiment in this design and the invention scope.
Claims (10)
1. compound bowed roller hydraulic cylinder, comprise cylinder end caps (2), piston rod (4) and cylinder body (8), it is characterized in that: be provided with movable piston rod (4) in the endoporus of described cylinder body (8) openend, be provided with seal between the inner headed face of the outer edge surface of described piston rod (4) one ends and cylinder body (8) endoporus, sealed end at cylinder body (8) is provided with cylinder body extension rod (9), be provided with connecting hole B(10 on the outer edge surface of described cylinder body extension rod (9)), be provided with cylinder end caps (2) at the openend of cylinder body (8).
2. compound bowed roller hydraulic cylinder according to claim 1, it is characterized in that: described seal is sealing ring B(12) or shaft seal.
3. compound bowed roller hydraulic cylinder according to claim 1 is characterized in that: be provided with two step B(11 that are parallel to each other on the outer edge surface of described cylinder body extension rod (9)), described step B(11) be to be provided with connecting hole B(10).
4. compound bowed roller hydraulic cylinder according to claim 1, it is characterized in that: the endoporus of an end of described piston rod (4) and cylinder body (8) is slidingly matched, be provided with step A(5 on the outer edge surface of the other end of piston rod (4)), described step A(5) on be provided with connecting hole A(6).
5. compound bowed roller hydraulic cylinder according to claim 1, it is characterized in that: described cylinder end caps (2) is passed the openend that piston rod (4) is fixed to cylinder body (8) by the endoporus that the middle part arranges, and described piston rod (4) is slidingly matched with the endoporus of cylinder end caps (2).
6. compound bowed roller hydraulic cylinder according to claim 1 or 5 is characterized in that: be provided with sealing ring A(1 between described cylinder end caps (2) and the cylinder body (8)).
7. compound bowed roller hydraulic cylinder according to claim 5 is characterized in that: described cylinder end caps (2) and piston rod (4) employing shaft seal (3) or sealing ring sealing.
8. according to claim 1 or 3 described compound bowed roller hydraulic cylinders, it is characterized in that: the outer edge surface of described cylinder body extension rod (9) is set to circle or ellipse or quadrangle or rhombus or polygonal.
9. compound bowed roller hydraulic cylinder according to claim 1 is characterized in that: be respectively arranged with oil circuit interface A(7 on the described cylinder body (8)) what oil circuit interface B(13).
10. compound bowed roller hydraulic cylinder according to claim 1, it is characterized in that: the outer edge surface of described cylinder body (8) is set to circle or ellipse or quadrangle or rhombus or polygonal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220362611 CN202824144U (en) | 2012-07-25 | 2012-07-25 | Compound bending roller hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220362611 CN202824144U (en) | 2012-07-25 | 2012-07-25 | Compound bending roller hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202824144U true CN202824144U (en) | 2013-03-27 |
Family
ID=47935940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220362611 Expired - Lifetime CN202824144U (en) | 2012-07-25 | 2012-07-25 | Compound bending roller hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202824144U (en) |
-
2012
- 2012-07-25 CN CN 201220362611 patent/CN202824144U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |
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| CX01 | Expiry of patent term |