CN217129967U - Six-roller mill working roll split type hydraulic cylinder - Google Patents
Six-roller mill working roll split type hydraulic cylinder Download PDFInfo
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- CN217129967U CN217129967U CN202123309103.0U CN202123309103U CN217129967U CN 217129967 U CN217129967 U CN 217129967U CN 202123309103 U CN202123309103 U CN 202123309103U CN 217129967 U CN217129967 U CN 217129967U
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- pneumatic cylinder
- uide bushing
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Abstract
The utility model relates to a pneumatic cylinder field discloses a split type pneumatic cylinder of six rolling mill working rolls, to the easy wearing and tearing of the pneumatic cylinder among the prior art, problem that life is low now proposes following scheme, and it includes jar main part, upper portion piston rod and lower part piston rod, the lower part piston rod sets up inside the jar main part, the uide bushing is installed down at jar main part top, the upper portion piston rod articulates the top of uide bushing under, upper portion piston rod top is fixed with the uide bushing, goes up the detachable gland that is fixed with in uide bushing top. The utility model discloses utilize the articulated principle of sphere and add location jar pole uide bushing, with pneumatic cylinder jar pole design split type, decompose the not equidirectional atress of pneumatic cylinder pole, guarantee the axiality of pneumatic cylinder pole, protection extension pneumatic cylinder seal life.
Description
Technical Field
The utility model relates to a pneumatic cylinder field especially relates to a split type pneumatic cylinder of six rolling mill working rolls.
Background
The cold rolling mill mainly adopts six-roller five-frame continuous rolling process, belonging to the key equipment of machine set, its working roll lifting device is positioned in the internal side connecting body of working roll bending cylinder body of the rolling mill, its hydraulic cylinder can lift working roll and track and butt-joint external track, and its working condition has exposed emulsion, and four corners are arranged in the rolling mill, and the lifting of internal track of the rolling mill is asynchronous due to friction blocking and working roll gravity centre factors.
At present, because the working condition of a rolling mill is emulsion lubrication rolling, emulsion particles abrade a hydraulic cylinder rod and a seal, the hydraulic cylinder rod is long, and the inclination of the stressed cylinder rod and the coaxiality deviation of a cylinder body are large in the working state, so that the hydraulic cylinder leaks. The range of influence is as follows: the method comprises the following steps of (1) inclining a transmission side and an operation side of a working roll; secondly, the jacking force of the hydraulic cylinder is reduced, and the efficiency of slowing down the lifting of the track and the speed of the working roller is reduced; a large amount of hydraulic cylinders are leaked, and the production cost is increased; fourthly, the replacement is extremely difficult, and the lifting can be replaced by disassembling the working roll track and the roll bending cylinder; the oil environmental pollution is caused, and the scheme designs the six-roller mill working roll split type hydraulic cylinder.
SUMMERY OF THE UTILITY MODEL
The utility model provides a split type pneumatic cylinder of six rolling mill working rolls has solved the problem that the pneumatic cylinder among the prior art is wearing and tearing easily, life is low.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a split type pneumatic cylinder of six rolling mill working rolls, includes jar main part, upper portion piston rod and lower part piston rod, the lower part piston rod sets up inside the jar main part, the uide bushing is installed down at jar main part top, the top of uide bushing under the upper portion piston rod articulates, upper portion piston rod top is fixed with the uide bushing, goes up the detachable gland that is fixed with in uide bushing top.
Preferably, the gland and the upper guide sleeve are fixed together through a plurality of fastening bolts.
Preferably, the upper piston rod is hinged to the lower guide sleeve through an SR spherical surface.
The utility model discloses in:
the split hydraulic cylinder divides the cylinder rod which extends outwards longer into two sections, the two sections are hinged by an SR50 spherical surface, the spherical surface hinge ensures that the upper piston rod 2 has a certain amount of swing angle, the upper piston rod is axially positioned by the upper guide sleeve and a gland thereof, the lower piston rod is axially positioned by the lower guide sleeve, the dividing line of the upper cylinder rod and the lower cylinder rod is designed and determined at a position 10mm above the upper end cap seal of the main cylinder body, and the split sealing of the cylinder rod is avoided.
Drawings
Fig. 1 is a front sectional view of the present invention.
Fig. 2 is a schematic structural view of the upper or dead stem and the lower piston rod of the present invention.
Reference numbers in the figures: 1. a cylinder main body; 2. an upper piston rod; 3. a lower piston rod; 4. an upper guide sleeve; 5. a lower guide sleeve; 6. a gland; 7. and a fastening bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-2, the six-roller mill working roll split hydraulic cylinder comprises a cylinder main body 1, an upper piston rod 2 and a lower piston rod 3, wherein the lower piston rod 3 is arranged inside the cylinder main body 1, a lower guide sleeve 5 is installed at the top of the cylinder main body 1, the upper piston rod 2 is hinged to the top of the lower guide sleeve 5, the upper piston rod 2 is hinged to the lower guide sleeve 5 through an SR50 spherical surface, and the spherical surface hinge ensures that the upper cylinder rod has a certain amount of swing angle;
an upper guide sleeve 4 is fixed on the top of the upper piston rod 2, a gland 6 is detachably fixed on the top of the upper guide sleeve 4, the upper piston rod 2 is hinged to the lower guide sleeve 5 through an SR50 spherical surface, the upper piston rod is axially positioned by the upper guide sleeve and the gland, the lower piston rod is axially positioned by the lower guide sleeve, and the boundary of the upper cylinder rod and the lower cylinder rod is designed and determined at a position 10mm above the upper end cover seal of the cylinder body, so that the split position of the cylinder rod is prevented from being scratched and sealed.
The working principle is as follows: when the hydraulic cylinder is replaced (reinstalled) in maintenance operation, only the cylinder body 1 and the lower piston rod 3 need to be disassembled (reinstalled) from a hidden space to replace the seal or the lower piston rod 3, the lower piston rod 3 is lifted up under the action of the hydraulic cylinder oil pressure during operation, the spherical surface is hinged to jack the upper piston rod 2, the lower piston rod 3 descends under the action of the cylinder body 1 oil pressure during reverse action, the upper piston rod 2 descends along with the action of the working roller track beam (165Kg) gravity, the cylinder rod of the split hydraulic cylinder ascends (descends) and is provided with the upper guide sleeve 4 and the lower guide sleeve 5 to maintain the basic axial movement direction of the cylinder rod, and the cylinder rod is allowed to have a certain deflection angle self-adjustment during lifting stress.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (3)
1. The utility model provides a split type pneumatic cylinder of six rolling mill working rolls, includes cylinder main part (1), upper portion piston rod (2) and lower part piston rod (3), its characterized in that, lower part piston rod (3) set up inside cylinder main part (1), uide bushing (5) are installed down at cylinder main part (1) top, upper portion piston rod (2) articulate the top of uide bushing (5) down, upper portion piston rod (2) top is fixed with uide bushing (4), goes up uide bushing (4) top detachable be fixed with gland (6).
2. The split hydraulic cylinder for the working rolls of the six-roller mill according to claim 1, wherein the gland (6) and the upper guide sleeve (4) are fixed together through a plurality of fastening bolts (7).
3. The split hydraulic cylinder for the work rolls of the six-roller mill according to claim 1, wherein the upper piston rod (2) is hinged to the lower guide sleeve (5) through SR50 spherical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123309103.0U CN217129967U (en) | 2021-12-27 | 2021-12-27 | Six-roller mill working roll split type hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123309103.0U CN217129967U (en) | 2021-12-27 | 2021-12-27 | Six-roller mill working roll split type hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217129967U true CN217129967U (en) | 2022-08-05 |
Family
ID=82619011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123309103.0U Active CN217129967U (en) | 2021-12-27 | 2021-12-27 | Six-roller mill working roll split type hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217129967U (en) |
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2021
- 2021-12-27 CN CN202123309103.0U patent/CN217129967U/en active Active
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