CN2272946Y - Oil cylinder after restoration of single hydraulic prop - Google Patents
Oil cylinder after restoration of single hydraulic prop Download PDFInfo
- Publication number
- CN2272946Y CN2272946Y CN 96238358 CN96238358U CN2272946Y CN 2272946 Y CN2272946 Y CN 2272946Y CN 96238358 CN96238358 CN 96238358 CN 96238358 U CN96238358 U CN 96238358U CN 2272946 Y CN2272946 Y CN 2272946Y
- Authority
- CN
- China
- Prior art keywords
- cylinder
- cylinder body
- hydraulic prop
- tube
- stainless steel
- 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 an oil cylinder after the restoration of single hydraulic props, which is used as a component for coal mine underground support devices. The utility model is composed of a cylinder body and a stainless steel thin cylinder which is spirally pressed and lined on the inner surface of the cylinder body. The inner surface of the cylinder body is firstly processed into spiral line knife scratches before spirally lined, and the outer surface of the stainless steel cylinder which is spirally lined on the cylinder body is correspondingly squeezed into convex spiral line ridge scratches, which causes a stainless steel sleeve to be firmly combined with the cylinder body.
Description
The utility model relates to the oil cylinder on the support apparatus hydraulic prop under a kind of coal mine, is mainly used in oil cylinder inner surface and damages reparation, also can be used for new oil cylinder manufacturing.
In background technology, repairing the hydraulic prop inner surface is with its hole enlargement, spinning serves as a contrast a Thin Stainless Steel tube then, reaches the internal diameter design size, and its shortcoming is: in the past before the lining, during to the cylinder body hole enlargement, its inner surface will be processed more smooth, and that is inlayed is enclosed within cylinder body because of bump, when being out of shape, and steel cylinder and cylinder body are easily separated, contact not firmly, influence is used.
The utility model purpose provides the oil cylinder the thin tube of a kind of institute lining metal contacts firm hydraulic prop reparation with inner surface of cylinder block after.
Technical solution of the present utility model is achieved in that the oil cylinder after hydraulic prop is repaired is made up of cylinder body and the strong metal foil tube of resistance to corrosion on inner surface of cylinder block spinning lining.Before the lined steel tube, inner surface of cylinder block is processed into the helix tool marks, and the metal foil tube outer surface on the spinning lining is forced to clamp-on between tool marks because of different with cylinder body hardness, is extruded into the helix ridge trace of protrusion in its external surface correspondence.
Advantage of the present utility model and good effect are to be between metal foil tube and cylinder body the shape of threads snap-in, and no matter it expands with heat and contract with cold, and still bump collides with, is out of shape, and all contact is tight, firm, and play does not break away from, and guarantees repairing quality.
Fig. 1 is the utility model structure diagram.
Referring to Fig. 1, the oil cylinder after the reparation is that metal foil tube 1 spinning is served as a contrast on cylinder body 2 inner surfaces.Before the lining, cylinder body 2 inner surfaces will be processed into and leave helix tool marks 3, and the metal foil tube 1 on spinning lining correspondence on its outer surface is extruded into opposite vestige.Tool marks 3 are formed between their bonding surfaces, condition each other, and combine closely, and metal foil tube 1 firmly is set in cylinder body 2.Metal foil tube 1 is first-selected with the stainless steel cylinder, also can adopt the copper tube, through the aluminium alloys tube of oxidation processes etc.To not long oil cylinder of life-span, also can adopt carbon steel tube lining.
Claims (2)
1. the oil cylinder after a hydraulic prop is repaired, comprise cylinder body and the strong metal foil tube of resistance to corrosion on inner surface of cylinder block spinning lining, it is characterized in that being processed into the helix tool marks before the inner surface of cylinder block edge cover, the metal foil tube outer surface correspondence on the spinning lining is extruded into the helix ridge trace of protrusion.
2 oil cylinders after repairing according to the described hydraulic prop of claim 1 is characterized in that the strong metal foil tube of resistance to corrosion is stainless steel cylinder, copper tube or through the aluminium alloys tube of oxidation processes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96238358 CN2272946Y (en) | 1996-08-31 | 1996-08-31 | Oil cylinder after restoration of single hydraulic prop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96238358 CN2272946Y (en) | 1996-08-31 | 1996-08-31 | Oil cylinder after restoration of single hydraulic prop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2272946Y true CN2272946Y (en) | 1998-01-21 |
Family
ID=33913675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96238358 Expired - Fee Related CN2272946Y (en) | 1996-08-31 | 1996-08-31 | Oil cylinder after restoration of single hydraulic prop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2272946Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103659147A (en) * | 2012-09-22 | 2014-03-26 | 宝山钢铁股份有限公司 | Method for repairing cylinder barrel of bending roller hydraulic cylinder of heavy plate mill |
| CN103737269A (en) * | 2014-01-22 | 2014-04-23 | 淮南巨万实业有限责任公司 | Method for wrapping and welding upright column of hydraulic support provided with anti-corrosive layer |
| CN103753043A (en) * | 2014-01-22 | 2014-04-30 | 淮南巨万实业有限责任公司 | Method for adding anti-corrosion layer onto hydraulic support stand column in rolling and longitudinal welding mode |
| CN110369946A (en) * | 2019-06-24 | 2019-10-25 | 王二刚 | A kind of movable post restorative procedure of hydraulic prop |
-
1996
- 1996-08-31 CN CN 96238358 patent/CN2272946Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103659147A (en) * | 2012-09-22 | 2014-03-26 | 宝山钢铁股份有限公司 | Method for repairing cylinder barrel of bending roller hydraulic cylinder of heavy plate mill |
| CN103659147B (en) * | 2012-09-22 | 2016-06-01 | 宝山钢铁股份有限公司 | A kind of plate mill roller Barrel of Hydraulic Cylinders reparation method |
| CN103737269A (en) * | 2014-01-22 | 2014-04-23 | 淮南巨万实业有限责任公司 | Method for wrapping and welding upright column of hydraulic support provided with anti-corrosive layer |
| CN103753043A (en) * | 2014-01-22 | 2014-04-30 | 淮南巨万实业有限责任公司 | Method for adding anti-corrosion layer onto hydraulic support stand column in rolling and longitudinal welding mode |
| CN103737269B (en) * | 2014-01-22 | 2016-02-24 | 淮南巨万实业有限责任公司 | Anticorrosive coat hydraulic support column method is installed in the welding of a kind of parcel additional |
| CN110369946A (en) * | 2019-06-24 | 2019-10-25 | 王二刚 | A kind of movable post restorative procedure of hydraulic prop |
| CN110369946B (en) * | 2019-06-24 | 2021-04-06 | 王二刚 | Movable column repairing method for single hydraulic support column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |