CN211803137U - Roller pair - Google Patents
Roller pair Download PDFInfo
- Publication number
- CN211803137U CN211803137U CN201922372787.5U CN201922372787U CN211803137U CN 211803137 U CN211803137 U CN 211803137U CN 201922372787 U CN201922372787 U CN 201922372787U CN 211803137 U CN211803137 U CN 211803137U
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- roller
- rollers
- diameter
- mounting bracket
- pair
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Abstract
The utility model discloses a roller pair, which comprises a roller and an installation bracket; the roller pair at least comprises 2 rollers and at least 2 mounting brackets; the rollers are fixed together through the mounting bracket to form a roller pair; the mounting brackets are positioned on two sides of the roller; the roller is provided with a roller convex table surface and a roller groove; one side of the mounting bracket is an inner hole surface; the roller boss surface is matched with the inner hole surface of the mounting bracket; the roller groove is a cylindrical surface, the diameter of the roller groove is changed, the diameter of a thick hole is slightly larger than that of the bar, and the minimum hole diameter is the diameter value of the pointed end. The pair of rollers are installed together through the installation support, the assembly relation is adjusted in advance, the replacement and the positioning are convenient, and the implementation of automatic assembly and disassembly is facilitated. The efficiency is improved, and the influence of human factors is reduced.
Description
Technical Field
The utility model belongs to metal cold forming production facility field relates to a roll, especially relates to a rod rolls sharp roll pair.
Background
Rolls are the primary working components and tools on a rolling mill that produce continuous plastic deformation of metal. For cold drawn materials, it is necessary to perform a pointing operation prior to cold drawing to reduce the local material size for passage through the die. The prior art is that the roller is installed alone, then constitutes the roller pair, and its installation accuracy receives installer's technical merit influence great, and intensity of labour is high, efficient, and the precision is difficult to guarantee.
Disclosure of Invention
The utility model relates to a roll pair convenient to change and fix a position does benefit to the implementation of automatic installing and removing.
The utility model relates to a vice technical scheme of roll does: a roller pair comprises a roller and a mounting bracket; the roller pair at least comprises 2 rollers and at least 2 mounting brackets; the rollers are fixed together through the mounting bracket to form a roller pair; the mounting brackets are positioned on two sides of the roller; the roller is provided with a roller convex table surface and a roller groove; one side of the mounting bracket is an inner hole surface; the roller boss surface is matched with the inner hole surface of the mounting bracket; the roller groove is a cylindrical surface, the diameter of the roller groove is changed, the diameter of a thick hole is slightly larger than that of the bar, and the minimum hole diameter is the diameter value of the pointed end.
Further, the roller pair is provided with an inner hole, and the inner hole is used for fixing the position of the roller.
Further, the inner hole of the roller is an internal spline.
Furthermore, the convex table surface of the roller pair is a circular surface.
Further, the roller pair is characterized in that the diameters of roller grooves of the rollers at the contact position are equal, and a cross section circle with the same diameter is formed.
Furthermore, the 2 mounting brackets can correspond to a plurality of rollers.
The invention has the beneficial effects that: the pair of rollers are installed together through the installation support, the assembly relation is adjusted in advance, the replacement and the positioning are convenient, and the implementation of automatic assembly and disassembly is facilitated. The efficiency is improved, and the influence of human factors is reduced.
Drawings
Fig. 1 is a drawing of a roller countershaft according to the present invention;
FIG. 2 is a front view of a roller pair of the present invention;
FIG. 3 is a view of a roll bearing of the present invention;
FIG. 4 is a working schematic diagram of a roll shaft pointing of the utility model;
wherein: 1, 2, 3 and 4 mounting brackets; 101 inner hole, 102 roller boss surface, 103 roller groove, 104 section circle and 201 bar material.
Detailed Description
The technical solution of the present invention is further described below with reference to the accompanying drawings:
a roller pair comprises a roller and a mounting bracket; the roller pair at least comprises 2 rollers and at least 2 mounting brackets; in the embodiment, the number of the rollers is 2, and the number of the mounting brackets is 2; the rollers 1 and 2 are fixed together through mounting brackets 3 and 4 to form a roller pair; the mounting brackets 3 and 4 are positioned at two sides of the rollers 1 and 2; the rollers 1 and 2 are provided with roller convex table surfaces 102 and roller grooves 103; one side of each mounting bracket 3, 4 is an inner hole surface; the roller boss surface 102 is matched with inner hole surfaces of the mounting brackets 3 and 4; the roller groove 103 is a cylindrical surface, the diameter of the roller groove is changed, the diameter of a large hole is slightly larger than that of the rod material, and the minimum hole diameter is the diameter value of the pointed end.
The rollers 1 and 2 are provided with inner holes 101, and the inner holes 101 are used for fixing the positions of the rollers 1 and 2; the roll inner bore 101 is an internal spline.
In this embodiment, the roller boss 102 is preferably a circular surface. The roller grooves 103 of the rollers 1 and 2 at the contact position have the same diameter, and form a cross-sectional circle with the same diameter.
The utility model discloses a roller pair, which can fix a plurality of rollers between 2 mounting brackets 3 and 4, and two adjacent rollers can form a tip pricking device; a plurality of rolls may be fixed to the plurality of mounting brackets 3 and 4.
The utility model relates to a roller is vice when pricking the point, and the work flow is as follows:
as shown in fig. 4, when the cross-sectional circle 104 formed by the roll grooves 103 is the maximum position, the bar 201 passes through the cross-sectional circle 104, and is fed for a distance to be the rolling tip length, then the roll 1 and the roll 2 rotate in the arrow direction, the diameter of the cross-sectional circle formed by the roll grooves 103 is continuously reduced, the bar 201 is extruded, the bar 201 retreats in the arrow direction under the action of the rolling force, after the bar 201 is separated from the rolls 1 and 2, the rolling tip is completed once, the rolls 1 and 2 are operated in reverse directions and reset, the bar 201 is automatically transmitted for 90 degrees by taking the center line of the bar as the center, then passes through the roll cross-sectional circle again, and passes through the length to be the rolling tip roll.
The secondary pointing is mainly used for eliminating flash formed at the joint surface of the roller during primary pointing.
Claims (6)
1. A roller pair comprises a roller and a mounting bracket; the method is characterized in that:
the roller pair at least comprises 2 rollers and at least 2 mounting brackets;
the rollers are fixed together through the mounting bracket to form a roller pair; the mounting brackets are positioned on two sides of the roller;
the roller is provided with a roller convex table surface and a roller groove;
one side of the mounting bracket is an inner hole surface;
the roller boss surface is matched with the inner hole surface of the mounting bracket;
the roller groove is a cylindrical surface, the diameter of the roller groove is changed, the diameter of a thick hole is slightly larger than that of the bar, and the minimum hole diameter is the diameter value of the pointed end.
2. A roller set according to claim 1, wherein: the roller is provided with an inner hole which is used for fixing the position of the roller.
3. A roller set according to claim 2, wherein: the inner hole of the roller is an internal spline.
4. A roller set according to claim 1, wherein: the convex table surface of the roller is a circular surface.
5. A roller set according to claim 1, wherein: the diameters of the roller grooves of the rollers at the contact position are equal, and a cross section circle with the same diameter is formed.
6. A roller set according to claim 1, wherein: the 2 mounting brackets can correspond to a plurality of rollers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922372787.5U CN211803137U (en) | 2019-12-26 | 2019-12-26 | Roller pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922372787.5U CN211803137U (en) | 2019-12-26 | 2019-12-26 | Roller pair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211803137U true CN211803137U (en) | 2020-10-30 |
Family
ID=73036203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922372787.5U Active CN211803137U (en) | 2019-12-26 | 2019-12-26 | Roller pair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211803137U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111112361A (en) * | 2019-12-26 | 2020-05-08 | 倪晓 | Automatic pointing production equipment |
-
2019
- 2019-12-26 CN CN201922372787.5U patent/CN211803137U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111112361A (en) * | 2019-12-26 | 2020-05-08 | 倪晓 | Automatic pointing production equipment |
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| GR01 | Patent grant |