CN202560380U - Steel cylinder sleeve - Google Patents
Steel cylinder sleeve Download PDFInfo
- Publication number
- CN202560380U CN202560380U CN2012201471766U CN201220147176U CN202560380U CN 202560380 U CN202560380 U CN 202560380U CN 2012201471766 U CN2012201471766 U CN 2012201471766U CN 201220147176 U CN201220147176 U CN 201220147176U CN 202560380 U CN202560380 U CN 202560380U
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- CN
- China
- Prior art keywords
- supporting shoulder
- cylinder liner
- steel
- steel tube
- cylinder sleeve
- 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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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a steel cylinder sleeve. The cylinder sleeve comprises a seamless steel tube and supporting shoulder circular rings, wherein the supporting shoulder circular rings are located outside the seamless steel tube; the supporting shoulder circular rings are higher than the circumference of the steel tube, and the width of the supporting shoulder circular rings is larger than the wall thickness of the steel tube; and the supporting shoulder circular rings are located at two ends of the steel tube or in the middle of the steel tube. The steel cylinder sleeve is ingenious in conception, simple in process, simple, practical and capable of improving the utilization rate of materials by 60-70%, reducing production cost and improving comprehensive mechanical property of the materials and is particularly suitable for various dry cylinder sleeve products of which the width of supporting shoulders is larger than the wall thickness.
Description
Technical field
The utility model belongs to the cylinder jacket of diesel engine technical field, is specifically related to a kind of steel cylinder liner.
Background technique
At present, the blank material that the conventional diesel engine cylinder liner adopts centrifugal casting alloy cast iron or cold drawing seamless pipe to make as cylinder liner, complex process; Stock utilization is low, and manufacture cost is high, and the alloy cast iron material is more crisp easily broken; Wear resistance is on the low side, has reduced the working life of cylinder liner.
The cast iron cylinder cover of designing and developing in recent years is for improving the comprehensive mechanical performance of wear resistance and cylinder liner; Rare metals such as Cu, Ni, Mo in material composition, have been added; And adopt a series of complicated heat treatment technologies; Though improved the comprehensive mechanical performance of cylinder liner material to a certain extent, caused the manufacture cost of cylinder liner to increase substantially.
Tradition is the cylinder liner of blank with the cold drawing seamless pipe; All adopt inwall chromium plating technology, adopt flanging process to form liner blank supporting shoulder, thereby make supporting shoulder breadth degree be less than or equal to the wall thickness of steel pipe; For the cylinder liner product of supporting shoulder breadth degree greater than wall thickness; Because supporting shoulder is to form through the integral body cutting to seamless steel pipe cylinder liner blank, thereby its stock utilization only has 10-20%, makes manufacture cost high; High, the complex process of while chrome-plating process energy consumption, and can cause environmental pollution.
The model utility content
The purpose of the utility model is to solve the deficiency that above-mentioned prior art exists, and providing a kind of is raw material, work simplification, stock utilization raising, cost reduction, the surperficial steel cylinder liner of handling through gas soft nitriding with common cold-drawn or hotrolling seamless pipe.
The principle of the invention and key problem in technology are the ends at common cold-drawn or hotrolling seamless pipe; Mode through built-up welding or punching press; Change the steel tube end part physical dimension; Form a supporting shoulder annulus that exceeds steel pipe circumference and width greater than thickness of steel pipe, to realize the processing of difference cylinder cover bearing shoulder position.
The utility model is to realize through following technological scheme:
A kind of steel cylinder liner, described cylinder liner comprise seamless steel pipe and supporting shoulder annulus, and described supporting shoulder annulus is positioned at the outside of seamless steel pipe.
As preferably, described supporting shoulder annulus exceeds steel pipe circumference and width greater than thickness of steel pipe.
As preferably, described supporting shoulder annulus is positioned at the two ends or the centre of seamless steel pipe.
(1) making of steel liner blank: pile up the requirement that a width and height dimension can guarantee finished product cylinder liner processing dimension in the outside of steel pipe, the supporting shoulder annulus of wide L1, height (L3-L2)/2; The supporting shoulder annulus of piling up is realized through the mode of welding or the mode of punching press;
(2) making of cylinder liner: the liner blank of above-mentioned band supporting shoulder annulus is required cutting finished product cylinder liner according to width and height dimension.
Mode through welding is piled up supporting shoulder annulus in the steel pipe outside, be to pile up supporting shoulder annulus at an end in the steel pipe outside, forms a liner blank; Piling up supporting shoulder annulus in the steel pipe outside through the mode of welding, is to pile up supporting shoulder annulus on the intermediate portion, length direction in the steel pipe outside, severs from the center cutting lines 3 of supporting shoulder annulus then, forms two liner blanks; Mode through punching press is piled up supporting shoulder annulus in the steel pipe outside; Be one end pier of steel pipe is thick through punching press; Thereby form the requirement that a width and height dimension should be able to guarantee finished product cylinder liner processing dimension at steel tube end part, annulus is takeed in the supporting of wide L1, height (L3-L2)/2; Steel pipe is cold-drawn or hotrolling seamless pipe;
The key of above scheme is must select the solder wire material identical or approaching with tube material in the welding process, and must not produce weld defectss such as pore and slag inclusion in the welding process.
Compared with prior art; The advantage of the utility model is: a kind of steel cylinder liner of the utility model is skillfully constructed, reasonable in design, work simplification, simple and practical; Can increase substantially the stock utilization in the course of working, reduce manufacture cost, improve the comprehensive mechanical performance of material.Be specially adapted to support the various dry liner products of shoulder breadth degree greater than wall thickness.
Description of drawings
Through embodiment, the utility model is further described below in conjunction with accompanying drawing.
Fig. 1: embodiment's 1 welding type steel liner blank structural representation;
Fig. 2: embodiment's 2 welding type steel liner blank structural representations;
Fig. 3: embodiment's 3 punching type steel liner blank structural representations;
In the drawings, 1 is seamless steel pipe, and 2 are supporting shoulder annulus, and 3 is cutting lines.
Embodiment
Following with reference to accompanying drawing, provide the embodiment of the utility model, be used for the formation of the utility model is further specified.
A kind of steel cylinder liner of present embodiment is with reference to figure 1; Annulus 2 is takeed in the supporting that at first an end is piled up a wide L1, height (L3-L2)/2 through the mode of welding in the outside of cold-drawn or hotrolling seamless pipe 1; Width and height dimension should be able to guarantee the requirement of finished product cylinder liner processing dimension, form a liner blank; Require cutting finished product cylinder liner according to width and height dimension then.
A kind of steel cylinder liner of present embodiment is with reference to figure 2; At first pile up the supporting shoulder annulus 2 of a wide L1, height (L3-L2)/2 through the mode of welding in the intermediate portion (length direction) in the cold-drawn or hotrolling seamless pipe 1 outside; Sever from the center cutting lines 3 of L1 then; Form two liner blanks, same width and height dimension should be able to guarantee the requirement of finished product cylinder liner processing dimension; Require cutting finished product cylinder liner according to width and height dimension then.
More than the key of two kinds of schemes be must select the solder wire material identical or approaching in the welding process with tube material, and must not produce weld defectss such as pore and slag inclusion in the welding process.
A kind of steel cylinder liner of present embodiment is with reference to figure 3; At first one end pier of cold-drawn or hotrolling seamless pipe 1 is thick through the mode of punching press; Thereby annulus 2 is takeed in the supporting that forms a wide L1, height (L3-L2)/2 at steel tube end part, and width and height dimension should be able to guarantee the requirement of finished product cylinder liner processing dimension; Require cutting finished product cylinder liner according to width and height dimension then.
Through adopting the above embodiment's of the utility model cylinder jacket of diesel engine blank, the supporting shoulder is not through whole cutting forms to seamless steel pipe cylinder liner blank, but constitutes through adding supporting shoulder annulus; Thereby stock utilization improves greatly; Can reach 60-70%, after handled through gas soft nitriding on the surface, nitride layer hardness can reach HV600-700; Core material toughness is big simultaneously; Comprehensive mechanical performance is much higher than alloy cast iron, can avoid cylinder jacket of diesel engine the platform phenomenon because of what the material problem produced fully, and improve 2-3 doubly than common alloy cast iron cylinder jacke its working life.
The foregoing description; It is an instance of the utility model; Be not enforcement and the interest field that is used for limiting the utility model, all and the said same content of the utility model claim or the technological scheme that is equal to all should be included in the utility model protection domain.
Claims (3)
1. steel cylinder liner is characterized in that: described cylinder liner comprises seamless steel pipe and supporting shoulder annulus, and described supporting shoulder annulus is positioned at the outside of seamless steel pipe.
2. a kind of steel cylinder liner according to claim 1 is characterized in that: described supporting shoulder annulus exceeds steel pipe circumference and width greater than thickness of steel pipe.
3. a kind of steel cylinder liner according to claim 1 is characterized in that: described supporting shoulder annulus is positioned at the two ends or the centre of seamless steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201471766U CN202560380U (en) | 2012-04-10 | 2012-04-10 | Steel cylinder sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201471766U CN202560380U (en) | 2012-04-10 | 2012-04-10 | Steel cylinder sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202560380U true CN202560380U (en) | 2012-11-28 |
Family
ID=47210043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201471766U Expired - Fee Related CN202560380U (en) | 2012-04-10 | 2012-04-10 | Steel cylinder sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202560380U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630762A (en) * | 2017-09-13 | 2018-01-26 | 中原内配集团股份有限公司 | A kind of dry liner and preparation method thereof |
-
2012
- 2012-04-10 CN CN2012201471766U patent/CN202560380U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630762A (en) * | 2017-09-13 | 2018-01-26 | 中原内配集团股份有限公司 | A kind of dry liner and preparation method thereof |
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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: 20121128 Termination date: 20170410 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |