CN201728226U - Working roller bending hydraulic cylinder block of rolling mill - Google Patents
Working roller bending hydraulic cylinder block of rolling mill Download PDFInfo
- Publication number
- CN201728226U CN201728226U CN2010202148509U CN201020214850U CN201728226U CN 201728226 U CN201728226 U CN 201728226U CN 2010202148509 U CN2010202148509 U CN 2010202148509U CN 201020214850 U CN201020214850 U CN 201020214850U CN 201728226 U CN201728226 U CN 201728226U
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- CN
- China
- Prior art keywords
- hydraulic cylinder
- piston rods
- piston rod
- rods
- bull stick
- 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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Abstract
The utility model discloses a working roller bending hydraulic cylinder block of a rolling mill, which comprises a plurality of hydraulic cylinder blocks and a bearing block. Each hydraulic cylinder block is provided with a plurality of piston rods, rod bodies of the piston rods are assembled inside cylinder holes of the hydraulic cylinder blocks, a rectangular hexahedron is arranged at the head of each piston rod, and the heads of the piston rods match with a notch of the bearing block. Guiding holes are respectively arranged at the bottoms of the piston rods, rotation-preventive rods are arranged inside the hydraulic cylinder holes, one end of each rotation-preventive rod is fixedly connected to the bottom of the respective hydraulic cylinder hole, and movable guiding sections of the rotation-preventive rods are arranged inside the guiding holes of the piston rods. The working roller bending hydraulic cylinder block realizes the purpose of preventing the piston rods from rotating by arranging the rotation-preventive rods at the bottoms of the piston rods so that the piston rods can only vertically ascend and descend without rotation along axes. In addition, the working roller bending hydraulic cylinder block can avoid easy bending and damaging of the piston rods in work by omitting a chain rod and enabling both the two piston rods to independently and freely ascend and descend, and guarantees normal running of a unit.
Description
Technical field
The utility model relates to a kind of milling train, is specifically related to a kind of work roll bending hydraulic cylinder piece of milling train.
Background technology
Milling train such as planisher, cold-rolling mill is equipped with work roll bending cylinder piece, as Anshan iron and steel plant 1#1780 hot-leveling machine, 2# hot-leveling machine, 1780 cold rolling levelling machines, Handan Iron and Steel Co 900MS six-roll cold mill and most single-stand cold-rolling machine.
As shown in Figure 1, the work roll bending cylinder piece of milling train comprises four hydraulic cylinder pieces, and the two ends up and down of each hydraulic cylinder piece are respectively equipped with two piston rods 3,5; The head of piston rod 3,5 is a rectangular hexahedron, and the head of piston rod 3,5 matches with the notch 2 of bearing block; The shaft of piston rod 3,5 is assemblied in the cylinder hole 7 of hydraulic cylinder piece, and the head and the sideshake between the notch 2 of piston rod 3,5 are 2mm.
Because working roll 1 is the workpiece that metallurgical rolling equipment must use, every approximately work necessary reconditioning in 8 hours once, as shown in Figure 2, promptly every work 8 hours just need be moved working roll 1 along the direction of arrow, make the notch 2 of bearing block put two piston rods 3,5 once.
For notch 2 can be enclosed within on the piston rod 3,5 smoothly, prevent piston rod 3,5 revolution and the collision accident that causes, existing method is by chain bar 4 fixedly connected piston rods 3,5.But, though this method has prevented the revolution of piston rod 3,5, because chain bar 4, requires two piston rods, 3,5 necessary synchronization liftings with two piston rods, 3,5 connection constraints.And working roll is after long-term work; because the hydraulic oil precision reduces; perhaps cause the frictional force inequality because of sealing ring is aging; make two piston rods 3,5 through the asynchronous lifting of regular meeting; chain bar 4 is broken; and finally cause piston rod 3,5, and then the major accident that causes unit to stop production by the generation of phenomenons such as stretch bending damage.
The utility model content
Technical problem to be solved in the utility model provides a kind of work roll bending hydraulic cylinder piece of milling train, and it can guarantee that piston rod does not turn round, and makes to be inserted in smoothly at every turn and carries out, and prevents that simultaneously piston rod from being damaged by stretch bending.
For solving the problems of the technologies described above, the technical solution of the work roll bending hydraulic cylinder piece of the utility model milling train is:
Comprise a plurality of hydraulic cylinder pieces, bearing block, each hydraulic cylinder piece is provided with a plurality of piston rods, and the shaft of each piston rod is assemblied in respectively in the cylinder hole of hydraulic cylinder piece; The head of each piston rod is a rectangular hexahedron, and the head of piston rod matches with the notch of bearing block; The bottom of described each piston rod is respectively equipped with pilot hole, is provided with anti-bull stick in the described cylinder port, and an end of anti-bull stick is fixedly connected on the bottom of cylinder port, and the activity-oriented section of anti-bull stick is arranged in the pilot hole of piston rod.
Match with the cross section of piston rod pilot hole in the cross section of described anti-rotation bar guide section.
The cross section of described pilot hole and anti-rotation bar guide section is a rectangle, and two ends are circular arc.
The flanged dish of one end of described anti-bull stick, described ring flange is fixedly connected on the bottom of described cylinder port.
Described pilot hole extends along the shaft direction of piston rod.
The technique effect that the utility model can reach is:
The utility model is provided with anti-bull stick in piston rod bottom, an end of anti-bull stick is fixed, and other end guide section is inserted in the piston rod, makes the piston rod can only vertical lift and can not turn round along axis, thereby has realized preventing the rotating purpose of piston rod.
The utility model has been cancelled to preventing the chain bar of adjacent two piston rods of connection that the piston rod rotation is set, makes two piston rods all can the independence and freedom lifting, thereby can avoid piston rod easily to be damaged by stretch bending at work, guarantees the normal operation of unit.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is the stereogram of the work roll bending hydraulic cylinder piece of prior art milling train;
Fig. 2 is the schematic diagram of the duty of prior art;
Fig. 3 is the stereogram of the work roll bending hydraulic cylinder piece of the utility model milling train;
Fig. 4 is the schematic diagram of duty of the present utility model.
Description of reference numerals among the figure:
1 is working roll, and 2 is the notch of bearing block,
3,5 is piston rod, and 4 is the chain bar,
6 are anti-bull stick, and 7 is cylinder port,
The specific embodiment
As shown in Figure 3, Figure 4, the work roll bending hydraulic cylinder piece of the utility model milling train comprises four hydraulic cylinders, and the two ends up and down of each hydraulic cylinder piece are respectively equipped with two piston rods 3,5; The head of piston rod 3,5 is a rectangular hexahedron, and the head of piston rod 3,5 matches with the notch 2 of bearing block; The shaft of piston rod 3,5 is assemblied in the cylinder hole 7 of hydraulic cylinder piece;
The bottom of piston rod 3,5 is respectively equipped with the rectangle pilot hole, and pilot hole extends along the shaft direction of piston rod;
The anti-bull stick 6 of the flanged dish of one end is arranged in the cylinder port 7, and the ring flange of anti-bull stick 6 is fixedlyed connected with the bottom of cylinder port 7; The activity-oriented section of anti-bull stick 6 is arranged in the pilot hole, matches with the pilot hole of piston rod 3,5 in the cross section of the guide section of anti-bull stick 6.
The utility model can be used for the Spanish mackerel circle hot rolling engineering project 1580mm of Anshan Iron and Steel Company hot-rolled leveling bundling unit.
Claims (5)
1. the work roll bending hydraulic cylinder piece of a milling train comprises a plurality of hydraulic cylinder pieces, bearing block, and each hydraulic cylinder piece is provided with a plurality of piston rods, and the shaft of each piston rod is assemblied in respectively in the cylinder hole of hydraulic cylinder piece; The head of each piston rod is a rectangular hexahedron, and the head of piston rod matches with the notch of bearing block; It is characterized in that: the bottom of described each piston rod is respectively equipped with pilot hole, is provided with anti-bull stick in the described cylinder port, and an end of anti-bull stick is fixedly connected on the bottom of cylinder port, and the activity-oriented section of anti-bull stick is arranged in the pilot hole of piston rod.
2. the work roll bending hydraulic cylinder piece of milling train according to claim 1, it is characterized in that: match with the cross section of piston rod pilot hole in the cross section of described anti-rotation bar guide section.
3. the work roll bending hydraulic cylinder piece of milling train according to claim 1 and 2, it is characterized in that: the cross section of described pilot hole and anti-bull stick is rectangle two ends band circular arcs.
4. the work roll bending hydraulic cylinder piece of milling train according to claim 1, it is characterized in that: the flanged dish of an end of described anti-bull stick, described ring flange is fixedly connected on the bottom of described cylinder port.
5. the work roll bending hydraulic cylinder piece of milling train according to claim 1 is characterized in that: described pilot hole extends along the shaft direction of piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202148509U CN201728226U (en) | 2010-06-03 | 2010-06-03 | Working roller bending hydraulic cylinder block of rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202148509U CN201728226U (en) | 2010-06-03 | 2010-06-03 | Working roller bending hydraulic cylinder block of rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201728226U true CN201728226U (en) | 2011-02-02 |
Family
ID=43519384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202148509U Expired - Fee Related CN201728226U (en) | 2010-06-03 | 2010-06-03 | Working roller bending hydraulic cylinder block of rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201728226U (en) |
-
2010
- 2010-06-03 CN CN2010202148509U patent/CN201728226U/en not_active Expired - Fee Related
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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: 20110202 Termination date: 20160603 |