CN110548766A - Rod rolling mill and use method thereof - Google Patents
Rod rolling mill and use method thereof Download PDFInfo
- Publication number
- CN110548766A CN110548766A CN201910800346.2A CN201910800346A CN110548766A CN 110548766 A CN110548766 A CN 110548766A CN 201910800346 A CN201910800346 A CN 201910800346A CN 110548766 A CN110548766 A CN 110548766A
- Authority
- CN
- China
- Prior art keywords
- bar
- roll
- rolling mill
- sleeve
- roller
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
- B21B1/18—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
- B21B35/02—Drives for metal-rolling mills, e.g. hydraulic drives for continuously-operating mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
- B21B2013/021—Twin mills
Abstract
The invention discloses a bar rolling mill and a use method thereof, relating to the technical field of bar processing equipment, wherein the main structure comprises a roll sleeve and an inner roll, the inner roll is arranged inside the roll sleeve, the axis of the inner roll is lower than that of the roll sleeve, a round billet is placed in a gap between the inner roll and the roll sleeve, the rolling of the bar can be completed by utilizing the reverse rotation of the inner roll and the outer roll, the rolling process is continuous, the required time is short, and the efficiency is high; all parts of the bar are rolled simultaneously, so that the surface roughness change caused by the reduction of the temperature of the bar is avoided; all parts of the bar are stressed equally, so that the situation that the diameters of all parts of the bar are inconsistent can not occur; the bar rolling machine disclosed by the invention has the advantages that the occupied area is smaller, no additional operation space is required, and the occupied area is saved.
Description
Technical Field
The invention relates to the technical field of bar processing equipment, in particular to a bar rolling mill and a using method thereof.
Background
At present, the bar rolling method mainly comprises three methods: two-roller or three-roller cross wedge rolling, flat cross wedge rolling and single-roller arc plate cross wedge rolling.
In the first mode, the rolled piece can only finish rolling within one rotation of the roller, and is not suitable for rolling metals which are difficult to roll, have small rolling temperature intervals and large thermal state yield limit.
In the second mode, in the rolling process, the rolling plate does reciprocating motion, needs to accelerate, uniform speed, decelerate, stop and then reversely move, the rolling is completed through multiple reciprocating motions of the rolling plate, and the rolling method is more unfavorable for metals with small rolling temperature intervals.
The third mode is single-roller driving, forming is carried out on a circular arc plate with limited length, and the rolling piece is over-large in rolling reduction of a single circle of rotation, so that rolling of metal difficult to roll is not facilitated.
For metals which are difficult to roll, have small rolling temperature range and large thermal state yield limit, the three traditional modes are not suitable. The novel rolling mill which has small rolling piece single-circle rotation rolling reduction and can continuously and transversely roll is needed.
Disclosure of Invention
In order to solve the technical problems, the invention provides a bar rolling machine which has small rolling piece single-circle rotation rolling reduction and can continuously and transversely roll, and provides a using method of the bar rolling machine.
In order to achieve the purpose, the invention provides the following scheme:
The invention provides a bar rolling mill, which comprises a roll sleeve and an inner roll; the roller sleeve is a ring-shaped member, the inner roller is arranged in the roller sleeve, and the axis of the inner roller is positioned right below the axis of the inner roller.
Optionally, the roll sleeve and the inner roll rotate in opposite directions.
Optionally, the roller mill further comprises a first driving mechanism, and the first driving mechanism is used for driving the inner roller to rotate.
optionally, the first driving mechanism includes a first motor, a first coupler, a first speed reducer, and a first universal joint shaft; the power output shaft of the first driving motor is in power connection with the first speed reducer, the first coupler is arranged between the first driving motor and the first speed reducer, the power output end of the first universal joint shaft is in power connection with one end of the universal joint shaft, and the other end of the universal joint shaft is in power connection with the inner roller.
Optionally, a speed reducer coupling is arranged between the speed reducer and the universal joint shaft.
Optionally, a rolling mill sleeve is arranged between the inner roller and the universal joint shaft.
Optionally, the rolling mill further comprises a second driving mechanism, and the second driving mechanism is used for driving the roller sleeve to rotate.
optionally, the second driving mechanism includes a second motor, a second worm and a second turbine; the power output end of the second motor is in power connection with the second worm wheel, the second worm wheel is arranged on the outer wall of the roller sleeve and is coaxial with the roller sleeve, and the second worm wheel is meshed with the second worm wheel.
Optionally, a second coupling is disposed between the second motor and the second scroll.
the invention also discloses a method for using the bar rolling mill, wherein the linear speed of the working surface of the inner roller is V 1, the linear speed of the working surface of the roller sleeve is V 2, when a round billet is placed between the conveying inner roller and the roller sleeve and the rolled bar is taken out, V 1 is equal to V 2, and V 1 is not equal to V 2 in the process of rolling the round billet.
Compared with the prior art, the invention has the following technical effects:
The main structure of the bar rolling mill comprises a roll sleeve and an inner roll, wherein the inner roll is arranged inside the roll sleeve, the axis of the inner roll is lower than that of the roll sleeve, a round billet is placed in a gap between the inner roll and the roll sleeve, and the rolling of the bar can be finished by utilizing the reverse rotation of the inner roll and the outer roll, so that the single-turn rolling reduction is small, the rolling process is continuous, the required time is short, and the efficiency is high; all parts of the bar are rolled simultaneously, so that the surface roughness change caused by the reduction of the temperature of the bar is avoided; all parts of the bar are stressed equally, so that the situation that the diameters of all parts of the bar are inconsistent can not occur; the bar rolling machine disclosed by the invention has the advantages that the occupied area is smaller, no additional operation space is required, and the occupied area is saved.
drawings
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of a bar rolling mill of the present invention;
FIG. 2 is a schematic front view of the bar rolling mill of the present invention;
FIG. 3 is a schematic top view of the bar rolling mill of the present invention;
Fig. 4 is a schematic side view of the bar rolling mill of the present invention.
Description of reference numerals: 1. a bar rolling mill; 2. a rolling mill sleeve; 3. a universal joint shaft; 4. a speed reducer connecting sleeve; 5. a speed reducer; 6. crowned tooth couplings; 7. a first motor; 8. a diaphragm type coupling; 9. a second motor; 10. an inner roller; 11. a bar material; 12. round billets; 13. and (4) a roller sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
As shown in fig. 1, the present embodiment provides a bar rolling mill including a roll shell 13 and an inner roll 10; the roller sleeve 13 is a ring-shaped member, the inner roller 10 is arranged in the roller sleeve 13, and the axis of the inner roller 10 is positioned right below the axis of the inner roller 10.
In this embodiment, as shown in fig. 1-4, the roll sleeve 13 is a ring-shaped member, the inner diameter of the roll sleeve 13 is D2, the inner roll 10 is a solid round roll, the diameter of the inner roll 10 is D1, the inner roll 10 is located inside the roll sleeve 13, and the axis of the inner roll 10 is located at a distance e directly below the axis of the roll sleeve 13.
The roll shell 13 is rotated in the counterclockwise direction with the linear velocity of its inner surface being V2; the inner roll 10 is rotated in a clockwise direction with the linear velocity of its outer surface at V1.
In a more specific embodiment, the bar rolling mill 1 comprises a base, on which a support structure is arranged, two ends of the inner roll 10 extend outwards by a section, and are rotatably supported on the support structure through a first bearing set, and outer walls of two ends of the roll sleeve 13 are sleeved with a second bearing set, and are rotatably supported on the support structure through the second bearing set.
One end of the inner roller 10 continues to extend outwards, and a rolling mill connecting sleeve 2 is fixedly sleeved on the inner roller 10, and the rolling mill connecting sleeve 2 is used for being connected with a universal spindle so that the first motor 7 drives the inner roller 10 to rotate.
A turbine is fixedly sleeved on the outer wall of the roller sleeve 13 and is coaxially arranged with the roller sleeve 13, the second motor 9 is arranged at the bottom of the roller sleeve 13, a worm is arranged on a power output shaft of the second motor 9 and is meshed with the turbine, and the turbine worm is driven by the rotation of the second motor 9, so that the roller sleeve 13 rotates.
Example two:
The present embodiment provides a method for using a bar rolling mill in the first embodiment.
Starting a first motor 7 and a second motor 9 to enable a roller sleeve 13 and an inner roller 10 to keep reverse rotation, ensuring that a linear velocity V2 of the inner surface of the roller sleeve 13 is consistent with a surface linear velocity V1 of the outer surface of the inner roller 10, putting a round billet 12 into a gap between the inner roller 10 and the roller sleeve 13, driving the round billet 12 to start to rotate by the inner roller 10 and the roller sleeve 13, gradually changing the rotating speed of the roller sleeve 13 and/or the inner roller 10 to enable the surface linear velocity V1 of the outer surface of the inner roller 10 to be not equal to the linear velocity V2 of the inner surface of the roller sleeve 13, enabling the round billet 12 to move along the gap between the inner roller 10 and the roller sleeve 13 during rotation until the round billet 12 moves to the lowest point of the inner wall of the roller sleeve 13, processing the round billet 12 into a rod material 11 at the moment, gradually changing the rotating speed of the roller sleeve 13 and/or the inner roller 10 to enable the surface linear velocity V1 of the outer surface of the inner roller sleeve 10 to be consistent with the linear velocity V2, the rod 11 is pushed out of the rod rolling mill 1 by means of a ram and a new round billet 12 is introduced for further processing.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. A bar rolling mill is characterized by comprising a roll sleeve and an inner roll; the roller sleeve is a ring-shaped member, the inner roller is arranged in the roller sleeve, and the axis of the inner roller is positioned right below the axis of the inner roller.
2. The bar rolling mill of claim 1 wherein the sleeve rotates in a direction opposite to the inner roll.
3. The bar rolling mill of claim 1 further comprising a first drive mechanism for driving the inner roll in rotation.
4. The bar rolling mill of claim 3 wherein the first drive mechanism comprises a first motor, a first coupling, a first reducer, and a first universal joint shaft; the power output shaft of the first driving motor is in power connection with the first speed reducer, the first coupler is arranged between the first driving motor and the first speed reducer, the power output end of the first universal joint shaft is in power connection with one end of the universal joint shaft, and the other end of the universal joint shaft is in power connection with the inner roller.
5. The bar rolling mill of claim 4 wherein a reducer nipple is disposed between the reducer and the cardan shaft.
6. The bar rolling mill of claim 4 wherein a mill nipple is disposed between the inner roll and the cardan shaft.
7. The bar rolling mill of claim 1 further comprising a second drive mechanism for driving the sleeve in rotation.
8. The bar rolling mill of claim 7 wherein the second drive mechanism includes a second motor, a second worm and a second worm gear; the power output end of the second motor is in power connection with the second worm wheel, the second worm wheel is arranged on the outer wall of the roller sleeve and is coaxial with the roller sleeve, and the second worm wheel is meshed with the second worm wheel.
9. The bar rolling mill of claim 8 wherein a second coupling is disposed between the second motor and the second scroll bar.
10. a method for using a bar rolling mill according to claims 1-9, characterized in that the linear speed of the inner roll work surface is V 1 and the linear speed of the roll mantle work surface is V 2, V 1 ≠ V 2 when a round bar is placed between the conveying inner roll and the roll mantle and when the rolled bar is taken out, and V 1 ≠ V 2 during rolling of the round bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910800346.2A CN110548766A (en) | 2019-08-28 | 2019-08-28 | Rod rolling mill and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910800346.2A CN110548766A (en) | 2019-08-28 | 2019-08-28 | Rod rolling mill and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110548766A true CN110548766A (en) | 2019-12-10 |
Family
ID=68736595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910800346.2A Pending CN110548766A (en) | 2019-08-28 | 2019-08-28 | Rod rolling mill and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110548766A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3466918A (en) * | 1964-09-30 | 1969-09-16 | Rotary Profile Anstalt | Profiling of workpieces |
| CN1189109A (en) * | 1995-07-04 | 1998-07-29 | 弗·尔·斯米德恩公司 | Ring roller mill |
| CN101712210A (en) * | 2009-11-19 | 2010-05-26 | 田国平 | Method and device for mesh-type compression molding of straw briquetting fuel |
| PL223468B1 (en) * | 2013-10-31 | 2016-10-31 | Lubelska Polt | Method for reducing hollow forgings |
| EP3385006A1 (en) * | 2015-12-03 | 2018-10-10 | Hitachi Metals, Ltd. | Method for producing ring-rolled product |
-
2019
- 2019-08-28 CN CN201910800346.2A patent/CN110548766A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3466918A (en) * | 1964-09-30 | 1969-09-16 | Rotary Profile Anstalt | Profiling of workpieces |
| CN1189109A (en) * | 1995-07-04 | 1998-07-29 | 弗·尔·斯米德恩公司 | Ring roller mill |
| CN101712210A (en) * | 2009-11-19 | 2010-05-26 | 田国平 | Method and device for mesh-type compression molding of straw briquetting fuel |
| PL223468B1 (en) * | 2013-10-31 | 2016-10-31 | Lubelska Polt | Method for reducing hollow forgings |
| EP3385006A1 (en) * | 2015-12-03 | 2018-10-10 | Hitachi Metals, Ltd. | Method for producing ring-rolled product |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191210 |
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| RJ01 | Rejection of invention patent application after publication |