CN203161704U - Piston type spring hydraulic cylinder for hot-rolled section steel production line - Google Patents
Piston type spring hydraulic cylinder for hot-rolled section steel production line Download PDFInfo
- Publication number
- CN203161704U CN203161704U CN 201320185314 CN201320185314U CN203161704U CN 203161704 U CN203161704 U CN 203161704U CN 201320185314 CN201320185314 CN 201320185314 CN 201320185314 U CN201320185314 U CN 201320185314U CN 203161704 U CN203161704 U CN 203161704U
- Authority
- CN
- China
- Prior art keywords
- piston
- hot
- production line
- hydraulic cylinder
- cylinder
- 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.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Actuator (AREA)
Abstract
The utility model provides a piston type spring hydraulic cylinder for a hot-rolled section steel production line. The piston type spring hydraulic cylinder comprises a piston rod, a piston, a cylinder body, a compression ring and a spiral spring, wherein the piston is arranged at the inner end of the piston rod, the cylinder body comprises a cylinder barrel and a base hermetically arranged at one end of the cylinder barrel, the piston is slidably arranged in the cylinder barrel, an oil inlet is formed on the base, the compression ring is hermetically fixed on the inner wall of the other end of the cylinder barrel, the outer end of the piston rod hermetically penetrates the center of the compression ring, the spiral spring is sleeved on the piston rod, one end face of the spiral spring is in abutted contact with the piston, the other end of the spiral spring is in abutted contact with the compression ring, the interior of the cylinder barrel serves as a piston cavity for the piston to reciprocate, and the oil inlet is communicated with the bottom of the piston cavity. The piston type spring hydraulic cylinder for the hot-rolled section steel production line solves the problem that a single-loop piston of a piston cylinder is not prone to retraction and the like, and is simple in structure and good in usage effect.
Description
Technical field
The utility model relates to a kind of oil hydraulic cylinder, relates in particular to a kind of piston type spring hydraulic cylinder for the hot-rolled steel section production line, belongs to metallurgical equipment technology field.
Background technique
In hot-rolled steel section equipment field, small-sized line universal rolling mill is connecting plate open frame pattern, and the characteristics of this milling train are: milling train crossbeam and the spring of roller system need the compensating cylinder picking-up to eliminate.At present, universal rolling mill beam balance system is designed to single loop-plunger type cylinder balance sysmte.This system's programmed sequence of operations is: after milling train had been adorned, operation sheet loop-plunger type cylinder balance sysmte was risen plunger type cylinder, holds up milling train crossbeam and roller system, thereby eliminated the spring of milling train crossbeam and roller system.During the dismounting milling train, at first reversing valve operated, beam balance cylinder oil pocket is communicated with fuel tank, be oil cylinder withdrawal under the gravity effect at crossbeam and roller; And then carry out roller replacing operation.
But there are problems in this present balance sysmte in actual motion, for example: the one, oil cylinder can't be withdrawn under the effect of crossbeam gravity, needs operator to use external force that plunger is withdrawn; The 2nd, crossbeam accesses the back misoperation and usually the plunger case plunger is got, and causes a large amount of fluid excessive simultaneously.
The model utility content
The purpose of this utility model is to provide a kind of piston type spring hydraulic cylinder for the hot-rolled steel section production line, is difficult for problems such as withdrawal to solve existing single loop-plunger type cylinder.
In order to solve described problem, the utility model provides a kind of piston type spring hydraulic cylinder for the hot-rolled steel section production line, and it comprises: piston rod; Piston is located at the inner end of described piston rod; Cylinder body comprises cylinder barrel and is located at the base of described cylinder barrel one end hermetically that described piston is located in the described cylinder barrel slidably, and described base is provided with filler opening; Hold-down ring is fixed in the inwall of the described cylinder barrel the other end hermetically, and the outer end of described piston rod is passed the center of described hold-down ring hermetically; Helical spring, be sheathed on the described piston rod, and a described helical spring end face contacts at described piston, the other end contacts at described hold-down ring, the inside of described cylinder barrel is the piston cavity that described piston moves back and forth, and described filler opening is communicated with the bottom of described piston cavity.
Preferably, wherein, described piston rod and described piston are overall structure.
Preferably, wherein, the inwall of the described cylinder barrel the other end is provided with internal thread, and described hold-down ring side is provided with outside thread, the outside thread of described hold-down ring side and the engagement of the internal thread of the described cylinder barrel the other end.
Preferably, wherein, the side of described hold-down ring is provided with first seal groove, and embedding in described first seal groove has first seal ring.
Preferably, wherein, the inwall of described hold-down ring is provided with second seal groove, and embedding in described second seal groove has second seal ring.
Preferably, wherein, the side of described piston is provided with the 3rd seal groove, and embedding in described the 3rd seal groove has the 3rd seal ring.
Preferably, wherein, described base is the ellipticity structure, and the two ends of described base are provided with the cylinder body fixed bolt hole.
Preferably, wherein, described first seal groove and first seal ring are the sealing of O type.
Preferably, wherein, described second seal groove and second seal ring are the sealing of O type.
Preferably, wherein, described the 3rd seal groove and the 3rd seal ring are the sealing of V group.
The operating method of piston type spring hydraulic cylinder of the present utility model comprises:
The oil cylinder up step couples together filler opening and the hydraulic pipe line of described piston type spring hydraulic cylinder, and selector valve in the operation hydraulic pipe line makes high-voltage oil liquid feed the bottom of described piston cavity, promotes to move on the described piston, compresses described helical spring simultaneously; With
The oil cylinder reset process is operated selector valve in the described hydraulic pipe line, and described piston cavity is communicated with return line, and fluid is at the dirty oil sump tank of described helical spring effect, and described piston descends.
The utility model can solve single loop piston cylinder piston and be difficult for problems such as withdrawal, and simple in structure, using effect is good.
Description of drawings
Fig. 1 is the sectional structure schematic representation of the utility model preferred embodiment;
Fig. 2 is the plan structure schematic representation of the utility model preferred embodiment.
The implication of reference character is among the figure:
1, piston rod; 2, hold-down ring;
3, cylinder barrel; 31, base; 311 cylinder body fixed bolt holes;
4, O RunddichtringO; 5, helical spring; 6, filler opening;
7, piston; 8, V group seal ring; 9, O RunddichtringO.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further details.
Fig. 1 and Fig. 2 schematically show the structure of the utility model preferred embodiment, and as shown in the figure, this preferred embodiment comprises that piston rod 1, hold-down ring 2(are also referred to as gland nut), form cylinder barrel 3 and base 31, helical spring 5 and the piston 7 of cylinder body.
Particularly, piston 7 is located at the inner end of piston rod 1, i.e. the lower end of piston rod 1 shown in Figure 1.In order to improve structural strength, this piston 7 and piston rod 1 of preferably having implemented is an overall structure.Base 31 sealing and firmly be connected in an end of cylinder barrel 3, wherein, cylinder barrel 3 is cylinder-like structure.Piston 7 is located in the cylinder barrel 3 slidably, and the inside of cylinder barrel 3 is the piston cavity that piston 7 moves back and forth substantially.The side of base 31 is provided with the filler opening 6 that is connected with the cavity of piston cavity bottom, the end of filler opening 6 is processed with standard female (pipe thread) to be used for and rapid pipe joint cooperation (can certainly be other connecting means that those skilled in the art expect) oil flow of feed flow pressure.Hold-down ring 2 is circular ring, and its side seal ground is fixed in the inwall of cylinder barrel 3 the other ends, and the outer end of piston rod 1 then is the center of passing hold-down ring 2 hermetically.Helical spring 5 is sheathed on the piston rod 1, and an end face of helical spring 5 contacts at piston 7, and the other end contacts at hold-down ring 2, also is that helical spring 5 is sheathed on the piston rod 1 between piston 7 and the hold-down ring 2.
For simple and firm being fixed and clamped encircles 2 in the inwall of cylinder barrel 3, the inwall of cylinder barrel 3 the other ends is provided with the internal thread (not shown), and hold-down ring 2 sides are provided with the outside thread (not shown), the internal thread engagement of the outside thread of hold-down ring 2 sides and cylinder barrel 3 the other ends.
In order to realize the sealing at above-mentioned each position, side and the inwall of hold-down ring 2 are equipped with seal groove, and correspondingly, embedding in the seal groove of hold-down ring 2 sides and inwall has seal ring 9 and seal ring 4.And seal ring 9 and seal ring 4 are the O RunddichtringO.In addition, the side of piston 7 also is provided with seal groove, and embedding has seal ring 8, seal ring 8 to be preferably V group seal ring in the sealing ring recess.Seal ring 4 and corresponding seal groove are three places, and be arranged in parallel between the three, and cooperate with piston rod 1.Seal ring 9 and corresponding seal groove are two places, and be arranged in parallel between the two, and the inwall of cylinder barrel 3 cooperates.More specifically, the specifications and models of helical spring 5, V group seal ring, O RunddichtringO are selected according to piston type spring hydraulic cylinder operating mode.
As shown in Figure 2, base 31 is the ellipticity structure, and the two ends of base 31 are provided with cylinder body fixed bolt hole 311, can install and fix bolt by the cylinder body fixed bolt hole, thereby fix this preferred embodiment.
More specifically, in a concrete operating mode, 100 millimeters of the diameters of piston 7,60 millimeters of the diameters of piston rod 1,70 millimeters of the strokes of piston 7,150 millimeters of this preferred embodiment piston type spring hydraulic cylinder height, 140 millimeters of the external diameters of cylinder body 3, the standard of helical spring 5 is YI10 millimeter * 80 millimeter * 70 millimeters-2 left GB/T2089-94B level-D-Zn.
In another concrete operating mode, 120 millimeters of the diameters of piston 7,90 millimeters of the diameters of piston rod 1,60 millimeters of the strokes of piston 7,140 millimeters of the piston type spring hydraulic cylinder height of this preferred embodiment, 160 millimeters of the external diameters of cylinder body 3, the standard of helical spring 5 are YI12 millimeter * 100 millimeter * 60 millimeters-2 left GB/T2089-94B level-D-Zn.
When this preferred embodiment of assembling, can adopt following installation step:
At the V of piston 7 sides group seal groove V group seal ring 8 is installed.
The overall structure of piston rod 1 and piston 7 is installed in the cylinder body that machines, and piston 7 is at the lowermost end of cylinder barrel 3, and piston rod 1 is in contraction state.
Be inserted in helical spring 5 from the top of cylinder barrel 3, helical spring 5 bottoms contact with piston 7.Inside and outside O RunddichtringO groove is installed O RunddichtringO 4,9 in hold-down ring 2.
Hold-down ring 2 outside threads and cylinder barrel 3 upper internal threaded spin together, and hold-down ring 2 endoporus and piston rod 1 are combined together, and helical spring 5 is pushed down in hold-down ring 2 lower end surfaces.
At filler opening 6 rapid pipe joint is installed.
After assembling finished, when this preferred embodiment was applied to steel rolling production-line, its operating process was roughly as follows:
One, oil cylinder rises; Install and fix bolt by cylinder body fixed bolt hole 311, fix this preferred embodiment; Filler opening 6 couples together with hydraulic pipe line, selector valve in the operation hydraulic pipe line, and high-voltage oil liquid feeds piston 7 bottoms, promotes to move on the piston 7, simultaneously compression helical spring 5.
Two, oil cylinder resets; Selector valve in the operation hydraulic pipe line makes piston cavity be communicated with return line, and fluid is at the dirty oil sump tank of helical spring 5 effects, and piston 7 descends.
In sum, the piston type spring hydraulic cylinder structure that is used for the hot-rolled steel section production line that the utility model provides is simple and firmly, and is flexibly flexible, can not be difficult to problems such as withdrawal, plunger are ejected.
As known by the technical knowledge, the utility model can be realized by other the embodiment that does not break away from its spiritual essence or essential feature.Therefore, described disclosed embodiment with regard to each side, all just illustrates, and is not only.All in the utility model scope or the change that is being equal in the scope of the present utility model all be included in the utility model.
Claims (10)
1. a piston type spring hydraulic cylinder that is used for the hot-rolled steel section production line is characterized in that, comprising:
Piston rod;
Piston is located at the inner end of described piston rod;
Cylinder body comprises cylinder barrel and is located at the base of described cylinder barrel one end hermetically that described piston is located in the described cylinder barrel slidably, and described base is provided with filler opening;
Hold-down ring is fixed in the inwall of the described cylinder barrel the other end hermetically, and the outer end of described piston rod is passed the center of described hold-down ring hermetically; With
Helical spring is sheathed on the described piston rod, and a described helical spring end face contacts at described piston, and the other end contacts at described hold-down ring,
The inside of described cylinder barrel is the piston cavity that described piston moves back and forth, and described filler opening is communicated with the bottom of described piston cavity.
2. the piston type spring hydraulic cylinder for the hot-rolled steel section production line according to claim 1 is characterized in that described piston rod and described piston are overall structure.
3. the piston type spring hydraulic cylinder for the hot-rolled steel section production line according to claim 1, it is characterized in that, the inwall of the described cylinder barrel the other end is provided with internal thread, and described hold-down ring side is provided with outside thread, the outside thread of described hold-down ring side and the engagement of the internal thread of the described cylinder barrel the other end.
4. the piston type spring hydraulic cylinder for the hot-rolled steel section production line according to claim 1 is characterized in that the side of described hold-down ring is provided with first seal groove, and embedding in described first seal groove has first seal ring.
5. the piston type spring hydraulic cylinder for the hot-rolled steel section production line according to claim 1 is characterized in that the inwall of described hold-down ring is provided with second seal groove, and embedding in described second seal groove has second seal ring.
6. the piston type spring hydraulic cylinder for the hot-rolled steel section production line according to claim 1 is characterized in that the side of described piston is provided with the 3rd seal groove, and embedding in described the 3rd seal groove has the 3rd seal ring.
7. the piston type spring hydraulic cylinder for the hot-rolled steel section production line according to claim 1 it is characterized in that described base is the ellipticity structure, and the two ends of described base is provided with the cylinder body fixed bolt hole.
8. the piston type spring hydraulic cylinder for the hot-rolled steel section production line according to claim 4 is characterized in that described first seal ring is the O RunddichtringO.
9. the piston type spring hydraulic cylinder for the hot-rolled steel section production line according to claim 5 is characterized in that described second seal ring is the O RunddichtringO.
10. the piston type spring hydraulic cylinder for the hot-rolled steel section production line according to claim 6 is characterized in that, described the 3rd seal ring is V group seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320185314 CN203161704U (en) | 2013-04-12 | 2013-04-12 | Piston type spring hydraulic cylinder for hot-rolled section steel production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320185314 CN203161704U (en) | 2013-04-12 | 2013-04-12 | Piston type spring hydraulic cylinder for hot-rolled section steel production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203161704U true CN203161704U (en) | 2013-08-28 |
Family
ID=49022891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320185314 Withdrawn - After Issue CN203161704U (en) | 2013-04-12 | 2013-04-12 | Piston type spring hydraulic cylinder for hot-rolled section steel production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203161704U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195768A (en) * | 2013-04-12 | 2013-07-10 | 莱芜钢铁集团有限公司 | Piston-type spring hydraulic cylinder for hot-rolled section steel production line and operation method thereof |
-
2013
- 2013-04-12 CN CN 201320185314 patent/CN203161704U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195768A (en) * | 2013-04-12 | 2013-07-10 | 莱芜钢铁集团有限公司 | Piston-type spring hydraulic cylinder for hot-rolled section steel production line and operation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202560256U (en) | Plug-in type stand column hydraulic control one-way valve | |
| CN201344162Y (en) | Prefill valve of hydrostatic press system | |
| CN203161704U (en) | Piston type spring hydraulic cylinder for hot-rolled section steel production line | |
| CN201513184U (en) | Single hydraulic prop capable of prevent valve from flying out | |
| CN207736240U (en) | A kind of prefill valve dismantling device of 500t oil pipes end upsetting machine | |
| CN204505905U (en) | A kind of hydraulic locking apparatus of forcing press | |
| CN103195768A (en) | Piston-type spring hydraulic cylinder for hot-rolled section steel production line and operation method thereof | |
| CN206435909U (en) | A kind of compression follower for being used to weld | |
| CN208951021U (en) | Large-tonnage double-act-ing hydraulic J-Horner | |
| CN204533702U (en) | Mine big-flow high-pressure water decompressor | |
| CN102218494B (en) | Hydraulic rapid forging press | |
| CN108302088A (en) | Monoblock type cylinder connecting device on hydraulic support | |
| CN101307788A (en) | Ultra-high hydraulic double-acting mechanical locking oil cylinder | |
| CN207122454U (en) | The matrix hydraulic system against pressure for hindering corrugated pipe forming machine | |
| CN208855092U (en) | Gas-liquid press | |
| CN206678431U (en) | A kind of high-mechanic gate-type forcing press | |
| CN201277365Y (en) | Dephosphorizing gas-control lowest liquid-elevating valve | |
| CN201496078U (en) | Top cover injection type single hydraulic prop | |
| CN201288581Y (en) | Pushing rod for low coal seam mining rack | |
| CN202768518U (en) | Combination type hydraulic cylinder with floating cylinder barrels | |
| CN104776256B (en) | Mine high-flow-rate high-pressure water depressurization device | |
| CN204831931U (en) | A compression test machine for super microcrystalline iron core | |
| CN203532402U (en) | High-pressure oil cylinder | |
| CN204327458U (en) | Two fixing antiscale card long plunger type sand-control oil well pump | |
| CN203876274U (en) | Anti-looseness and anti-skidding device for flanged connection of medium and large cylinders |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130828 Effective date of abandoning: 20151021 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |