CN201696459U - Cooling bed driving shaft - Google Patents
Cooling bed driving shaft Download PDFInfo
- Publication number
- CN201696459U CN201696459U CN2010201980324U CN201020198032U CN201696459U CN 201696459 U CN201696459 U CN 201696459U CN 2010201980324 U CN2010201980324 U CN 2010201980324U CN 201020198032 U CN201020198032 U CN 201020198032U CN 201696459 U CN201696459 U CN 201696459U
- Authority
- CN
- China
- Prior art keywords
- crank
- plummer
- pillow block
- prong
- driving shaft
- 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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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model relates to a cooling bed driving shaft, which is characterized in that a crank aperture and a plummer are in interference fit; a circumferential positioning key matched with a standard key is installed between the crank aperture and the plummer; a shaft shoulder which is axially positioned is manufactured on the plummer; the fork of the crank is a splicing structure; the section of the splicing end of the crank and the fork is convex; the splicing end of the crank and the fork is respectively provided with a welding groove; two complete penetration J-shaped welding grooves which are 80mm deep at an angle of 13 degrees are arranged on left and right matching faces on which the crank aperture is welded with the plummer; and the bottom width of the J-shaped groove is of 13mm; the fork of the crank is the splicing structure so as to greatly reduce the processing quantity and increase the production efficiency; the crank aperture and the plummer are in interference fit, the circumferential positioning key matched with the standard key is installed between the crank aperture and the plummer, and the shaft shoulder which is axially positioned is manufactured on the plummer so as to improve the manufacturing precision; in addition, the utility model also has advantages of simple structure, easy manufacturing and low cost.
Description
Technical field
The utility model relates to a kind of equipment that cools off steel billet, especially a kind of cooling bed driving shaft.
Background technique
Cold bed is a kind of equipment that cools off steel billet, and this gross weight of equipment is about 600 tons, long 55861mm, wide 11600mm.Its chief component is: translating device, tooth bar, tooth bar support.Its working principle is: translating device slowly drives steel billet forward and moves by promoting tooth bar by the tooth bar stent support, treat the steel billet cooling after, enter down the preface manufacturing.Wherein the live axle in the translating device is that balance staff bigger in the metallurgical equipment drives part.14 tons of the gross weights of live axle are welded by axle and three place's cranks, and its axis weighs 11.6 tons, axial length 5675mm, diameter of axle φ 490-φ 750, crank profile limit size 1880mm * 1000mm * 280mm.The structure of known cooling bed driving shaft is: be shaped on three pillow blocks on the axle, on each pillow block, be welded with head and have the prong crank, the axially locating of crank hole and pillow block is by the shaft shoulder, axis hole Spielpassung (E8/d9), it circumferentially orientates slotted hole and pin Spielpassung (H12/h11) location as, and axle and crank hole are welded into integral body, integral body is carried out machining then, guarantees that with this required precision everywhere promptly on live axle: 165.14 ° ± 0.01 ° of crank hole parallelism 0.15mm, total length coaxality 0.06mm, angle.The live axle of this structure has two problems: (1) crank hole is low with the quality of fit of axle, therefore needs the live axle secondary operations after the welding.When live axle integral body is carried out the turning processing two ends diameter of axle, need calculate the counterweight weight and the eccentric position of 3 place's cranks accurately.Even calculate counterweight weight and eccentric position accurately, but because turning processing itself is a kind of processing method of removing material, thereby be in the precision that eccentric state is difficult to guarantee total length coaxality 0.06mm at the gyration center of course of working axis always.In addition in the turning course of working of live axle owing to there is an eccentric force, therefore bigger to the impact of lathe headstock, equipment is had serious destructive.When (2) live axle integral body is carried out cutting 3 place's crank prongs, attachment hole, need on the large-sized gantry boring drilling and milling machine, process.Being installed of live axle, centering difficulty in the process of cutting 3 place's crank attachment holes, 3 place's crank deflection angles are different and related each other complicated, and the parallelism 0.15mm of crank hole form and position tolerance, angle also are difficult to for 165.14 ° ± 0.01 ° guarantee.
Summary of the invention
The utility model provides a kind of precision height, cooling bed driving shaft that cost is low for solving the technical problem that exists in the known technology.
The technological scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
A kind of cooling bed driving shaft comprises the axle that has three pillow blocks, is welded on the locating piece that head on each pillow block has prong crank and crank hole and pillow block, and the prong of described crank is a splicing construction; Described crank hole and pillow block are interference fit, between crank hole and the pillow block the circumferential positioning key that standard key cooperates are installed, and are shaped on the shaft shoulder of axially locating on the pillow block.
The utility model can also adopt following technological scheme:
Described splicing construction is that the cross section of crank and prong splice ends is a convex, and crank and prong splice ends are shaped on bevel for welding respectively.
The bilateral 13 ° of dark 80mm full-penetration J type bevel for weldings in fitting surface place, the left and right sides of described crank hole and pillow block welding, and J type groove bottom width 13mm.
Advantage and the good effect that the utlity model has are:
Because the prong of crank is a splicing construction, has significantly reduced amount of finish and has improved manufacturing efficiency; Since crank hole and pillow block be interference fit, crank hole with pillow block between be equipped with on circumferential positioning key that standard key cooperates, the pillow block and be shaped on the shaft shoulder of axially locating, thereby improved accuracy of manufacturing; In addition the utility model also have simple in structure, be easy to make, advantage that cost is low.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural drawing of crank 2 among Fig. 1;
Fig. 3 is the A-A sectional view of Fig. 2;
Fig. 4 is the B-B sectional view of Fig. 2;
Fig. 5 is the C-C sectional view of Fig. 2.
Among the figure: 1, live axle; 2, crank; 3, pillow block; 4, prong; 5, attachment hole; 6, crank hole; 7, crank splice ends.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
Referring to Fig. 1～Fig. 5, be shaped on three pillow blocks 3 on the axle 1, on each pillow block, be welded with the crank 2 that head has prong 4, be shaped on attachment hole 5 on the prong.Described crank hole 6 is interference fit (H7/p6) with pillow block, between crank hole and the pillow block the circumferential positioning key that standard key cooperates (25JS9/25h8) is installed, be shaped on the shaft shoulder of axially locating on the pillow block, the prong of described crank is a splicing construction, this splicing construction is that the cross section of crank and prong splice ends 7 is a convex, and crank and prong splice ends are shaped on bevel for welding respectively.The bilateral 13 ° of dark 80mm full-penetration J type bevel for weldings in fitting surface place, the left and right sides of described crank hole and pillow block welding, and J type groove bottom width 13mm weld so that insert welding rod easily, reduce the welding difficulty, increase deposited metal, improve weld strength.
Like this, because the prong of crank is a splicing construction, has significantly reduced amount of finish and improved manufacturing efficiency; Since crank hole and pillow block be interference fit, crank hole with pillow block between be equipped with on circumferential positioning key that standard key cooperates, the pillow block and be shaped on the shaft shoulder of axially locating, thereby improved accuracy of manufacturing; In addition the utility model also have simple in structure, be easy to make, advantage that cost is low.
Claims (3)
1. cooling bed driving shaft comprises the axle that has three pillow blocks, is welded on the locating piece that head on each pillow block has prong crank and crank hole and pillow block, and it is characterized in that: the prong of described crank is a splicing construction; Described crank hole and pillow block are interference fit, between crank hole and the pillow block the circumferential positioning key that standard key cooperates are installed, and are shaped on the shaft shoulder of axially locating on the pillow block.
2. cooling bed driving shaft according to claim 1 is characterized in that: described splicing construction is that the cross section of crank and prong splice ends is a convex, and crank and prong splice ends are shaped on bevel for welding respectively.
3. cooling bed driving shaft according to claim 1 is characterized in that: the bilateral 13 ° of dark 80mm full-penetration J type bevel for weldings in fitting surface place, the left and right sides of described crank hole and pillow block welding, and J type groove bottom width 13mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201980324U CN201696459U (en) | 2010-05-21 | 2010-05-21 | Cooling bed driving shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201980324U CN201696459U (en) | 2010-05-21 | 2010-05-21 | Cooling bed driving shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201696459U true CN201696459U (en) | 2011-01-05 |
Family
ID=43397702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201980324U Expired - Fee Related CN201696459U (en) | 2010-05-21 | 2010-05-21 | Cooling bed driving shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201696459U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865202A (en) * | 2010-05-21 | 2010-10-20 | 天津赛瑞机器设备有限公司 | Cooling bed driving shaft and manufacturing method thereof |
-
2010
- 2010-05-21 CN CN2010201980324U patent/CN201696459U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865202A (en) * | 2010-05-21 | 2010-10-20 | 天津赛瑞机器设备有限公司 | Cooling bed driving shaft and manufacturing method thereof |
| CN101865202B (en) * | 2010-05-21 | 2012-05-02 | 天津赛瑞机器设备有限公司 | Cooling bed driving shaft and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20120521 |