CN2448476Y - Improved steel bar screw roll - Google Patents
Improved steel bar screw roll Download PDFInfo
- Publication number
- CN2448476Y CN2448476Y CN 00249013 CN00249013U CN2448476Y CN 2448476 Y CN2448476 Y CN 2448476Y CN 00249013 CN00249013 CN 00249013 CN 00249013 U CN00249013 U CN 00249013U CN 2448476 Y CN2448476 Y CN 2448476Y
- Authority
- CN
- China
- Prior art keywords
- cylindrical die
- die roll
- roll
- hollow cylinder
- screw thread
- 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 improved steel bar screw roller which adopts two screw rolling wheels which are symmetrically arranged at both sides of the axial cord of a hollow cylinder cavity, and the connecting line of the circle centers of the cross sections of the two screw rolling wheels and the diameter of the cross section circle of the hollow cylinder cavity are superposed. Guide devices which can be used for guiding rolled steel bars are respectively arranged at both sides of a straight line which is close to the cone end of the screw roller and forms a 90 DEG angle with the connecting line of the shaft centers of the screw rolling wheels. The utility model has the advantages of simple structure and small non-roundness over allowance of rolled steel bars. When screws of steel bars of which the diameters are smaller than 18 mm are rolled, the effect and the quality are both enhanced.
Description
The utility model relate to be specially adapted for rolling mill for metal carry out the additional metal process equipment, more specifically be meant a kind of improved roller for screw thread steel.
At present, being roller for screw thread for one of the method for the common usefulness of connection between the reinforcing bar is rolled into straight thread with the termination of the reinforcing bar that will connect, the female adapter sleeve of apparatus connects two reinforcing bars then, this on reinforcing bar the roll of direct rolling straight thread mainly be to constitute by three or four cylindrical die rolls, as any one technology, also there is its shortcoming unavoidably in existing roll: the roll complex structure, the screw thread steel out-of-roundness that shuts out is overproof very big, and the cylindrical die roll number is many more, its diameter is just more little, the service life of roll is just short more, especially when the screw thread steel of wanting rolling diameter below 18mm, effect and quality are all undesirable.
For this reason, the purpose of this utility model is to overcome the shortcoming that existing roll exists, and a kind of improved roller for screw thread steel is provided.
To achieve these goals, the utility model adopts following technical scheme: this roll comprises hollow cylinder cavity, cylindrical die roll, cylindrical die roll is that wheel is rolled in the combination that cone and cylinder constitute, be evenly equipped with the screw thread teeth on the cylindrical die roll, cylindrical die roll places in the hollow cylinder cavity by eccentric shaft, and the gyroaxis axle center of cylindrical die roll is distributed on the same circumference, it is characterized in that: described cylindrical die roll quantity adopts two, two cylindrical die rolls are symmetrically placed in hollow cylinder cavity axis both sides, and the cross section circle center line connecting of two cylindrical die rolls overlaps with hollow cylinder cavity cross-section diameter of a circle; At the cone end of nearly cylindrical die roll and be 90 degree straight line both sides with the cylindrical die roll axial connecting line and be respectively equipped with and guide the guiding device that is rolled reinforcing bar.
Because roll of the present utility model has adopted two cylindrical die rolls, two cylindrical die rolls are symmetrically placed in hollow cylinder cavity axis both sides, and the cross section circle center line connecting of two cylindrical die rolls overlaps with hollow cylinder cavity cross-section diameter of a circle; At the cone end of nearly cylindrical die roll and be 90 degree straight line both sides with the cylindrical die roll axial connecting line and be respectively equipped with and guide the guiding device that is rolled reinforcing bar.Therefore, roll of the present utility model has simple in structure, and the cylindrical die roll diameter is amid a sharp increase, the screw thread steel out-of-roundness that is shut out is overproof less, especially when the screw thread steel of wanting rolling diameter below 18mm, effect and quality all increase, and whole roll long service life.
Below in conjunction with drawings and Examples, roll of the present utility model is done one explains:
Fig. 1 is a structure cross-sectional schematic of the present utility model
Fig. 2 be Fig. 1's " B-B " to launching schematic diagram.
See also Fig. 1, shown in Figure 2, roll of the present utility model comprises hollow cylinder cavity 1, cylindrical die roll 2, cylindrical die roll 2 rolls wheel for the combination of cone 21 and cylinder 22 formations, be evenly equipped with the screw thread teeth on the cylindrical die roll 2, the screw thread teeth are equidistant ring threads or the spiral teeth are arranged, its tooth number 〉=5, its cone height 〉=6T, T are pitch.Also be furnished with mutually equally spaced thread on cylinder 22 parts of cylindrical die roll 2, thread form can be triangle, trapezoidal or circular arc.Cylindrical die roll 2 places in the hollow cylinder cavity 1 by eccentric shaft 3, and the gyroaxis axle center of cylindrical die roll 2 is distributed on the same circumference, different with original roller for screw thread steel is that described cylindrical die roll 2 quantity adopt two, two cylindrical die rolls 2 are symmetrically placed in hollow cylinder cavity axis both sides, and the cross section circle center line connecting of two cylindrical die rolls 2 overlaps with hollow cylinder cavity cross-section diameter of a circle.At cone 21 ends of nearly cylindrical die roll 2 and be 90 degree straight line both sides with the cylindrical die roll axial connecting line and be respectively equipped with and guide the guiding device 4 that is rolled reinforcing bar.
Described guiding device 4 is a carriage, and carriage is provided with inclined-plane supporting plate 41 and set screw 42.The inclined-plane of the cone 21 of the inclined-plane of inclined-plane supporting plate 41 and the cylindrical die roll of cylindrical die roll 2 is symmetry shape, and the supporting plate 41 of both sides cooperates with cylindrical die roll 2 synchronised, plays the guiding that is rolled reinforcing bar 5 and the effect of shaping.Set screw 42 can be regulated the radial position of inclined-plane supporting plate 41.
Described guiding device 4 can also be a cone support roller (not drawing in the drawings), and the effect of cone support roller is identical with the inclined-plane supporting plate 41 of front, plays the guiding that is rolled reinforcing bar 5 and the effect of shaping.
Described two cylindrical die rolls 2 two ends all are with single direction thrust ball bearing 6, make cylindrical die roll 2 between bearing 6, also are provided with and adjust packing ring 7 in a side of each bearing 6.With the axial location of two cylindrical die rolls 2 to the T/2 pitch difference.Also can be on the structure without single direction thrust ball bearing, and substitute with wear-resisting adjustment pad
Above-mentioned all cylindrical die rolls 2, roller eccentric shaft 3 and guiding device all are positioned in the hollow cylinder cavity 1 of opening, the two ends of cylindrical cavity 18,9 cover with lid respectively, all leave on the lid 8 and 9 to be rolled central through hole that reinforcing bar 5 can pass and the through hole that the eccentric shaft 3 of cylindrical die roll 2 is installed.
The course of work of this roll is, this roll is placed on the special milling train, and reinforcing bar 5 is passed in the central through hole of roll, starts milling train, makes roll with respect to reinforcing bar 5 rotations, and during axial feed, promptly directly rolls out straight thread.If cylindrical die roll 2 surfaces are equidistant ring teeth, roll are done with respect to reinforcing bar 5 be rotated counterclockwise, and during axial feed, promptly directly roll out the dextrorotation straight thread.Otherwise, then on reinforcing bar 5, roll out left-handed straight thread, if cylindrical die roll 2 surfaces are left-handed threads, then roll out the dextrorotation reinforced bar straight thread, otherwise, then on reinforcing bar, roll out left-handed straight thread.Adjust the offset of the revolution eccentric shaft of cylindrical die roll 2, and regulate set screw 42, reinforced bar straight thread that can rolling different-diameter.Adjust and control the length that roll and reinforcing bar move axially distance, then can be rolled into connection straight thread, the anchoring straight thread of reinforcing bar, or shut out high strength cold-rolled spiral.
Claims (4)
1, a kind of improved roller for screw thread steel, this roll comprises hollow cylinder cavity, cylindrical die roll, cylindrical die roll is that wheel is rolled in the combination that cone and cylinder constitute, be evenly equipped with the screw thread teeth on the cylindrical die roll, cylindrical die roll places in the hollow cylinder cavity by eccentric shaft, and the gyroaxis axle center of cylindrical die roll is distributed on the same circumference, it is characterized in that: described cylindrical die roll quantity adopts two, two cylindrical die rolls are symmetrically placed in hollow cylinder cavity axis both sides, and the cross section circle center line connecting of two cylindrical die rolls overlaps with hollow cylinder cavity cross-section diameter of a circle; At the cone end of nearly cylindrical die roll and be 90 degree straight line both sides with the cylindrical die roll axial connecting line and be respectively equipped with and guide the guiding device that is rolled reinforcing bar.
2, improved roller for screw thread steel as claimed in claim 1 is characterized in that: described guiding device is a carriage, and carriage is provided with inclined-plane supporting plate and set screw.
3, improved roller for screw thread steel as claimed in claim 1 is characterized in that: described two cylindrical die roll two ends all are with single direction thrust ball bearing or wear-resistant gasket and adjust packing ring.
4, improved roller for screw thread steel as claimed in claim 1 is characterized in that: described guiding device is a cone support roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00249013 CN2448476Y (en) | 2000-08-29 | 2000-08-29 | Improved steel bar screw roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00249013 CN2448476Y (en) | 2000-08-29 | 2000-08-29 | Improved steel bar screw roll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2448476Y true CN2448476Y (en) | 2001-09-19 |
Family
ID=33607534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00249013 Expired - Fee Related CN2448476Y (en) | 2000-08-29 | 2000-08-29 | Improved steel bar screw roll |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2448476Y (en) |
-
2000
- 2000-08-29 CN CN 00249013 patent/CN2448476Y/en not_active Expired - Fee Related
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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 |