CN214976655U - Two-roller type non-adjustable seamless steel tube sizing mill - Google Patents
Two-roller type non-adjustable seamless steel tube sizing mill Download PDFInfo
- Publication number
- CN214976655U CN214976655U CN202121084062.7U CN202121084062U CN214976655U CN 214976655 U CN214976655 U CN 214976655U CN 202121084062 U CN202121084062 U CN 202121084062U CN 214976655 U CN214976655 U CN 214976655U
- Authority
- CN
- China
- Prior art keywords
- roll
- seamless steel
- roller
- steel tube
- pass
- 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.)
- Active
Links
- 238000004513 sizing Methods 0.000 title claims abstract description 38
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 34
- 239000010959 steel Substances 0.000 title claims abstract description 34
- 230000009467 reduction Effects 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 5
- 239000003638 chemical reducing agent Substances 0.000 claims description 15
- 230000009977 dual effect Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 230000008676 import Effects 0.000 abstract 2
- 238000005096 rolling process Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 4
- 238000005098 hot rolling Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
Images
Landscapes
- Metal Rolling (AREA)
Abstract
The utility model discloses a two roll-type non-adjustable seamless steel tube sizing mills, including frame and a plurality of roll devices, roll device including set up the roll case on the frame, rotate two rolls that set up in the roll case to and be used for driving two the roll is towards the actuating mechanism of opposite direction rotation, two the roll encloses into the roll pass together, be provided with import and export on the roll case, all the roll pass of roll device, import and the coaxial setting of export; the width of the roll pass of the first roll device is larger than the average diameter of the pierced billet along the conveying direction of the pierced billet; starting from the second roll device, the average diameter of the roll pass of the latter roll device is the average diameter of the roll pass of the former roll device minus the reduction amount. The utility model discloses two roll-types are seamless steel pipe sizing mills unadjustable simple structure, and the sizing is effectual, and production efficiency is high.
Description
Technical Field
The utility model relates to a seamless steel pipe production facility technical field, concretely relates to two roll-types can not transfer seamless steel pipe sizing mills.
Background
After the round steel is perforated, a pierced billet is called, and sizing is the last rolling process in a seamless steel tube hot rolling production line, so that the pierced billet is rolled into a steel tube with high precision in the appearance dimension under the condition of a small reducing rate, and the quality of the outer surface of the steel tube is improved.
At present, three-roller longitudinal rolling sizing equipment is adopted for hot rolling and sizing of seamless steel pipes in China, and although the three-roller longitudinal rolling sizing equipment can meet the rolling process requirements of a hot rolling production line of the seamless steel pipes, the three-roller longitudinal rolling sizing equipment is complex in structure, high in maintenance cost, low in production efficiency and not suitable for a production line with a high rhythm.
SUMMERY OF THE UTILITY MODEL
To the above defect that prior art exists, the utility model provides a two roll-types can not transfer seamless steel pipe sizing mills, this two roll-types can not transfer seamless steel pipe sizing mills simple structure, and the sizing is effectual, and production efficiency is high.
In order to solve the technical problem, the utility model discloses a technical scheme is:
the two-roller type non-adjustable seamless steel tube sizing mill comprises a stand and a plurality of roller devices, wherein each roller device comprises a roller box arranged on the stand, two rollers rotatably arranged in the roller box and a driving mechanism for driving the two rollers to rotate towards opposite directions; the width of the roll pass of the first roll device is larger than the average diameter of the pierced billet along the conveying direction of the pierced billet; starting from the second roll device, the average diameter of the roll pass of the latter roll device is the average diameter of the roll pass of the former roll device minus the reduction amount.
The roll is provided with arc-shaped grooves arranged along the circumferential direction of the roll, the radii of the arc-shaped grooves of the two rolls of the same roll device are equal, and the arc-shaped grooves of the two rolls of the same roll device jointly enclose a roll pass.
Wherein, the edge of the arc-shaped groove is a round angle.
Wherein the roll pass of the preceding roll device has an average diameter diThe roll pass of the latter roll arrangement has an average diameter d: (i+1) The reduction delta is 3.5% di，d(i+1)＝di-δ。
The two rollers of the roller device are respectively rotatably installed in the roller box through installation shafts, and the axes of the two installation shafts are parallel.
The driving device comprises a motor and a parallel dual-output-shaft speed reducer, a driving shaft of the motor is in transmission connection with an input shaft of the parallel dual-output-shaft speed reducer, and two output shafts of the parallel dual-output-shaft speed reducer are respectively connected with corresponding mounting shafts through connecting structures.
The connecting structure comprises a gear arranged on the output shaft of the parallel double-output-shaft speed reducer and a gear sleeve arranged on the installation shaft, and the gear is meshed with the gear sleeve.
Wherein, the connecting structure is a coupler.
The axes of the rollers of two adjacent roller devices are staggered at 90 degrees.
Wherein, the two-roller non-adjustable seamless steel tube sizing mill comprises 14 roller devices.
By adopting the technical scheme, the beneficial effects of the utility model are that:
the utility model provides a two roll-types are seamless steel pipe sizing mills unadjustable compares with the three roll-type longitudinal rolling sizing equipment among the prior art:
(1) the structure is simple, the equipment cost is low, and the operating cost is low; the installation and maintenance are more convenient, and the maintenance cost is low;
(2) the two rollers of the two-roller type non-adjustable seamless steel tube sizing mill are fixed in a roller box, the distance between the two rollers is fixed and non-adjustable, the two rollers have a fixed mode of automatic center adjustment of a rolling center line, the center is accurate, the integral processing of roller pass can be realized on a special lathe, the manual adjustment of reducing amount and the axis of each roller pass is not needed, the time for debugging equipment is saved, the working efficiency is improved, and the production requirement of the production line for fast pace is met;
(3) the utility model discloses the area of contact of roll and pierced billet of two roll-type unadjustable seamless steel pipe sizing mills is bigger, has increased the contact deformation district of pierced billet, has reduced size precision error and surface quality roughness for the sizing effect is better.
Drawings
FIG. 1 is a schematic structural view of a two-roll type non-adjustable seamless steel tube sizing mill according to the present invention;
FIG. 2 is a schematic view of the roll cage of FIG. 1;
FIG. 3 is a cross-sectional view of FIG. 2;
FIG. 4 is an enlarged partial view of the mating of the two rolls of FIG. 3;
in the figure: 10. a machine base; 20. a roll device; 201. a roll box; 2011. an inlet; 2012. an outlet; 202. rolling; 2021. an arc-shaped slot; 2022. round corners; 203. a roll pass; 204. installing a shaft; 205. a motor; 206. a parallel double-output shaft speed reducer; 207. and (5) a connecting structure.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
As shown in fig. 1 to 4, the two-roller type non-adjustable seamless steel tube sizing mill includes a stand 10 and a plurality of roller devices 20, and preferably, the two-roller type non-adjustable seamless steel tube sizing mill in this embodiment includes 14 roller devices 20, and in practical applications, the number of the roller devices 20 may be determined according to practical requirements, which is not limited in this embodiment.
The roll device 20 in this embodiment includes a roll box 201 disposed on the stand 10, two rolls 202 rotatably disposed in the roll box 201, and a driving mechanism for driving the two rolls 202 to rotate in opposite directions, the two rolls 202 together form a roll pass 203, the roll box 201 is provided with an inlet 2011 and an outlet 2012, and the roll passes 203, the inlet 2011 and the outlet 2012 of all the roll devices 20 are coaxially disposed.
The roller 202 is provided with an arc groove 2021 arranged along the circumferential direction of the roller 202, the radii R of the arc grooves 2021 of the two rollers 202 of the same roller device 20 are equal, and the arc grooves 2021 of the two rollers 202 of the same roller device 20 enclose a roller pass 203.
In this embodiment, the width of the roll pass 203 is a, the height of the roll pass 203 is B, the average diameter of the roll pass 203 is (a + B)/2, and the width a of the roll pass 203 of the first roll device 20 is greater than the average diameter of the pierced billet (not shown in the figure) in the conveying direction of the pierced billet; starting from the second roll device 20, the average diameter of the roll pass 203 of the next roll device 20 is the average diameter of the roll pass 203 of the previous roll device 20 minus the reduction amount.
The reduction amount in this embodiment is δ, and the average diameter of the roll pass 203 of the preceding roll apparatus 20 is diThe average diameter of the roll pass 203 of the latter roll device 20 is d: (d:)i+1) The reduction delta is 3.5% di，d(i+1)＝di- δ. In practical applications, the size of the reducing amount δ may be set according to requirements, and this embodiment does not limit this.
In order to improve the drawing performance of the apparatus into the pierced billet so that the apparatus can be instantaneously drawn into the pierced billet, it is preferable in the present embodiment that the width a of the roll pass 203 of the first roll device 20 is 0.5mm larger than the average diameter of the pierced billet.
In order to facilitate the metal flow between the two rollers 202 and avoid the two rollers 202 scratching the surface of the pipe, the edge of the arc groove 2021 is rounded 2022 in this embodiment.
Preferably, the radius of the rounded corner 2022 is not greater than 2mm, and the radius of the rounded corner 2022 in this embodiment is 1-2 mm.
In the process of sizing the pipe, a bulge is easily formed on the surface of the pipe at the gap between the two rollers 202, so that the wall thickness of the pipe is uneven, and in order to improve the uneven wall thickness and ovality of the pipe and improve the quality of the pipe, the gap S between the two rollers 202 of the roller device 20 is set to be 0.7mm in the embodiment.
In order to eliminate the protrusion formed on the surface of the pipe at the gap between the two rollers 202, the axes of the rollers 202 of two adjacent roller devices 20 are staggered by 90 ° in this embodiment, so that the protrusion formed on the surface of the pipe by the previous roller device 20 is rolled off by the next roller device 20, thereby improving the surface quality of the pipe.
The two rolls 202 of the roll device 20 in this embodiment are rotatably mounted in the roll box 201 by mounting shafts 204, respectively, and the axes of the two mounting shafts 204 are parallel.
The driving device of the rolling roll device 20 in this embodiment includes a motor 205 and a parallel dual output shaft reducer 206, a driving shaft of the motor 205 is in transmission connection with an input shaft of the parallel dual output shaft reducer 206, and two output shafts of the parallel dual output shaft reducer 206 are respectively connected with the corresponding mounting shafts 204 through a connecting structure 207.
The connecting structure 207 in this embodiment includes a gear (not shown) provided on the output shaft of the parallel dual output shaft reducer 206, and a gear sleeve (not shown) provided on the mounting shaft 204, and the gear is engaged with the gear sleeve. By adopting the structure, the structure of the equipment is simplified, the equipment is convenient to disassemble and assemble, and meanwhile, the working efficiency can be improved.
Of course, when in use, the gear may be mounted on the mounting shaft 204, and the gear sleeve may be mounted on the output shaft of the parallel dual-output shaft reducer 206, or the connection structure 207 may be a coupling, which is specifically selected according to actual requirements, and this embodiment is not limited to this.
When in use, the motor 205 of each roller device 20 drives the two rollers 202 of the corresponding roller device 20 to rotate through the parallel dual-output shaft speed reducer 206, pierced billets enter the two-roller type non-adjustable seamless steel pipe sizing mill through the inlet 2011 of the first roller device 20, and then pass through the roller pass 203 of each roller device 20 to finish reducing and sizing.
The utility model discloses two rolls 202 of two roll-type unadjustable seamless steel pipe sizing mills are fixed in a roll box 201, and the interval of two rolls 202 is fixed unadjustable, has the fixed mode of the automatic aligning of rolling central line, and centering is accurate, can realize the whole processing of roll pass 203 on special lathe, does not need the axis of manual regulation reducing volume and each roll pass 203, has saved the time of debugging equipment, has improved work efficiency, has satisfied the production demand that the production line was rhythmed soon.
The present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes without the labor of creation from the above conception, which falls within the protection scope of the present invention.
Claims (10)
1. The two-roller non-adjustable seamless steel tube sizing mill is characterized by comprising a stand and a plurality of roller devices,
the roller device comprises a roller box arranged on the stand, two rollers rotatably arranged in the roller box and a driving mechanism for driving the two rollers to rotate in opposite directions, the two rollers jointly form a roller pass, the roller box is provided with an inlet and an outlet, and the roller pass, the inlet and the outlet of all the roller devices are coaxially arranged;
the width of the roll pass of the first roll device is larger than the average diameter of the pierced billet along the conveying direction of the pierced billet; starting from the second roll device, the average diameter of the roll pass of the latter roll device is the average diameter of the roll pass of the former roll device minus the reduction amount.
2. The two-roll non-adjustable seamless steel tube sizing mill according to claim 1, wherein the rolls are provided with arc-shaped grooves arranged along the circumferential direction of the rolls, the radii of the arc-shaped grooves of the two rolls of the same roll device are equal, and the arc-shaped grooves of the two rolls of the same roll device together enclose the roll pass.
3. The two-roll non-adjustable seamless steel tube sizing mill according to claim 2, wherein the edges of the arcuate slot are rounded.
4. The two-roll non-adjustable seamless steel tube sizing mill according to claim 1, wherein the roll pass of the previous roll device has an average diameter diThe roll pass of the latter roll unit has an average diameter d(i+1)The reduction delta is 3.5% di，d(i+1)＝di-δ。
5. The two-roller non-adjustable seamless steel tube sizing mill according to any one of claims 1 to 4, wherein the rollers of the roller device are rotatably mounted in the roller box by mounting shafts, respectively, and the axes of the mounting shafts are parallel.
6. The two-roll non-adjustable seamless steel tube sizing mill according to claim 5, wherein the driving mechanism comprises a motor and a parallel dual output shaft reducer, a driving shaft of the motor is in transmission connection with an input shaft of the parallel dual output shaft reducer, and two output shafts of the parallel dual output shaft reducer are respectively connected with the corresponding mounting shafts through connecting structures.
7. The two-roll non-adjustable seamless steel tube sizing mill according to claim 6, wherein the connection structure comprises a gear disposed on the output shafts of the parallel dual output shaft reducer, and a gear sleeve disposed on the mounting shaft, the gear meshing with the gear sleeve.
8. The two-roll non-adjustable seamless steel tube sizing mill according to claim 6, wherein the connection structure is a coupling.
9. The two-roll non-adjustable seamless steel tube sizing mill according to claim 1, wherein axes of the rolls of two adjacent roll devices are staggered by 90 °.
10. The two roll non-adjustable seamless steel tube sizing mill of claim 1, comprising 14 of the roll devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121084062.7U CN214976655U (en) | 2021-05-20 | 2021-05-20 | Two-roller type non-adjustable seamless steel tube sizing mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121084062.7U CN214976655U (en) | 2021-05-20 | 2021-05-20 | Two-roller type non-adjustable seamless steel tube sizing mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214976655U true CN214976655U (en) | 2021-12-03 |
Family
ID=79132050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121084062.7U Active CN214976655U (en) | 2021-05-20 | 2021-05-20 | Two-roller type non-adjustable seamless steel tube sizing mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214976655U (en) |
-
2021
- 2021-05-20 CN CN202121084062.7U patent/CN214976655U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH06210318A (en) | Rolling method of tube and device to be used therefor | |
| CN207325587U (en) | A kind of very thin cold rolling band steel equipment | |
| CN106862273A (en) | A kind of milling method of cold rolled tube | |
| CN204544970U (en) | Aximal deformation value finish rolling pipe process units | |
| CN2801310Y (en) | Roller arrangement of cold reducing mill and its driving mechanism | |
| CN214976655U (en) | Two-roller type non-adjustable seamless steel tube sizing mill | |
| CN101279336A (en) | Three-roller flattening machine | |
| CN210497646U (en) | Finish machining system for reducing anisotropy of metal material | |
| CN115446117A (en) | Novel rolling mill with asymmetric rollers | |
| CN101797586A (en) | Hot sizing device with four-roll five-machine frame rolling mill and production method thereof | |
| CN101474634B (en) | Three-roller tube-rolling machine | |
| CN110722004B (en) | Rolling method of metal pipe | |
| CN209866963U (en) | Production line for high-quality steel and deformed steel bar | |
| CN210045802U (en) | Corrugated steel plate arc forming machine | |
| RU2229352C2 (en) | Shaping mill | |
| CN85106451A (en) | Machine for rolling pipe of large diameter or superdiameter | |
| CN212652585U (en) | Bending device for water wall tube | |
| MX2013000266A (en) | Mandrel mill and method for manufacturing seamless pipe. | |
| CN111940511A (en) | Roller, pipe removing structure and pipe removing machine | |
| CN85106452A (en) | Three-roller negative feature corner set mill and punch | |
| CN218191725U (en) | Cold rolling mill for strip steel | |
| CN104148390A (en) | Process and equipment for stretch-reducing hot rolling of hollow anchor rods | |
| CN217191636U (en) | Novel stretch reducing mill | |
| CN212190604U (en) | A mould for finish rolling pump barrel and finish rolling pipe | |
| CN212664592U (en) | Plate pipe coiling machine for manufacturing U-shaped pipe heat exchanger shell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Two roll non adjustable seamless steel pipe sizing machine Granted publication date: 20211203 Pledgee: Anqiu Shandong rural commercial bank Limited by Share Ltd. Pledgor: WEIFANG WEIERDA PETROLEUM MACHINERY Co.,Ltd. Registration number: Y2024980005297 |