CN107052053B - A kind of cooling means of planet tube grimper - Google Patents
A kind of cooling means of planet tube grimper Download PDFInfo
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- CN107052053B CN107052053B CN201710407801.3A CN201710407801A CN107052053B CN 107052053 B CN107052053 B CN 107052053B CN 201710407801 A CN201710407801 A CN 201710407801A CN 107052053 B CN107052053 B CN 107052053B
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- rolling
- cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
- B21B2027/103—Lubricating, cooling or heating rolls externally cooling externally
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The present invention relates to a kind of cooling means of planet tube grimper.Its technical solution: a kind of cooling means of planet tube grimper is used for the cooling of planet tube grimper；The planetary rolling has water-cooling-sprayer (208), roll (103), revolving body (205), rolling centerline (C-C) and contact in rolling (K)；It is characterized by: when the milling train works, the water-cooling-sprayer (208) and revolving body (205) surround the rolling centerline C-C synchronous rotary, water-cooling-sprayer (208) contact in rolling Xiang Suoshu (K) the spray cooling water and/or the water-cooling-sprayer (208) Xiang Suoshu roll (103) spray cooling water.After adopting the above technical scheme, the cooling effect of planetary rolling deformed area and roll can be dramatically increased, the production efficiency of planetary rolling is improved.
Description
Technical field
The present invention relates to a kind of cooling means of planet tube grimper, are mainly used for the cold of planet tube grimper contact in rolling
But, belong to metal pipe material processing method technical field.
Background technique
Planetary rolling is a kind of metal pipe material diagonal rolling pipe mill with well-known technique.Planetary rolling is mainly driven by major-minor motor
It is dynamic.When rolling, the roll installed on major-minor motor driven milling train revolving body revolves around rolling centerline, while roll is around respective
Axis rotation.In the operation of rolling, by the adjustment of major-minor motor speed, the tubing after rolling, which goes out, does not generate rotation after milling train, such as
This can roll the tubing of overlength.Patent No. US6792781, the milling train that EP2116312 is invented also belong to this kind of milling train.
Since technique is advanced, planetary rolling has obtained very big popularization in copper pipe industry, present China almost 100% sky
Adjusting refrigerating copper pipes is produced by planetary rolling.Over the past two decades, with the gradual perfection of technology, planetary rolling rolls copper
The yield and quality of pipe also obtains very big raising.In terms of yield, the initial annual output of planetary rolling only has 5000-6000
Ton, until having reached the level of 20000 tons or so of annual output before 10 years.Consider the factors such as real work day, is converted into hour production
Amount is 4 ton/hours.
In the past 10 years, the engineers and technicians of this field always strive to the hourly output for continuing to improve planetary rolling, but
Encounter very big technical problem.The tube rolling of higher speed can generate pipe diameter and become larger, and screw pitch is uneven, pipe outer surface wave
Phenomena such as wave-like or generation torsion tube, tube rolling is caused to fail.Due to the generation of such case, the hour of planetary rolling rolling copper pipe is produced
Amount meets with bottleneck, fluctuates always.
Further analysis and research show to generate the problem that rolling enters instability status when aforementioned tubes high-speed rolling
Caused, it is to be determined by the tube rolling characteristic of planetary rolling.Planetary rolling tube rolling has the feature of single pass aximal deformation value,
Single pass heavy deformation is more than 90%.So big single pass heavy deformation can generate very big deformation heat, caused by this deformation heat
Temperature rise can be more than the recrystallization temperature of copper.Planetary rolling rolls on one side in rolling copper pipe, to be cooled down on one side, existing
The deformation heat generated under rolling yield matches with the existing type of cooling and amount of cooling water, it is ensured that the tubing in rolling is in
Under stable as-rolled condition, the copper pipe outer surface of rolling is bright and clean, smooth.If continuing to improve and rolling speed, this deformation heat can continue
Increase, and the cooling means of the prior art is unable to satisfy needs cooling under higher speed rolling operating condition.In this case, it is rolled
The deformed area of tubing will continue to heat up, and the result of this heating will cause tubing softening, rigidity is deteriorated.The pipe deformations of softening are anti-
Power reduces, and the resistance to torsion of tubing is made to be deteriorated.Especially in the exit portion of contact in rolling, tube wall is thinning after rolling, and soft
Thin tubing anti-twisting property is worse again.The tubing of high-speed rolling is easy because being unable to control the constant temperature raising of deformed area as a result,
The phenomenon that generating rolling unstability.The above phenomenon is summarized, the cooling of tubing is not enough the master for generating rolling unstability when higher speed rolls
The main reason for wanting reason, and planetary rolling yield can not be further increased.
Based on the analysis to above-mentioned reason, the present inventor has made many relevant works, such as: constant in the existing type of cooling
In the case where increase cooling pump flow, increase the pressure etc. of pump.Present inventor have discovered that using mesohigh water pump, as: by pump
Pressure increase is to 30kg/cm2Or enlargement discharge, the flow of pump is improved to 100m3/ h does not obtain expected effect, uses
Big pressure and big flow are difficult to accomplish accurate cooling control, are easily damaged milling train.
Those skilled in the art have also made a series of work to the above problem, such as: China Patent Publication No.
CN1370640A, CN201380188Y, CN202199593U, CN202162210U, all to the cooling means of planetary rolling and cold
But device has made certain improvement, makes every effort to obtain better cooling effect, pursues better tube rolling quality and higher yield.But
It is that above-mentioned work is limited to the improvement effect of rolling mill yield.
Fig. 5 is existing planetary rolling tube rolling schematic diagram.By the analysis to Fig. 5, can be more clear to having skill
The bad reason of art cooling effect.As shown in figure 5, penetrating plug 102 by inner hole by tube rolling base 101, plug 102 is fixed by core bar
In the K of contact in rolling.Three rolls 103 of three-roller planetary rolling mill are uniformly arranged on milling train revolving body.Roll 103 is around rolling
Center line C-C revolution processed, each roll is also around respective axis AC, BC rotation.After rolling, it is processed to by tube rolling base 101
Drawn and rolled tube 107.
In the operation of rolling, part cooling water 104 is sprayed on roll 103, and another part cooling water 104 is sprayed on the pipe of formation zone
On material.Generally there are two types of forms for this stationary spray head, and one is spray 106 structures of disk, as shown in Figure 5, in spray disk 106
The cooling aperture of multiple groups is equipped on towards the direction of shaped region.Another kind is nozzle arrangements, the commercially available metallic nozzle pair of several groups
The spray cooling of forming area progress cooling water.Due to the needs of rolling mill practice, spray on disk or nozzle the size, angle of aperture and
Quantity is by special design, and the composition of cooling water-in-oil emulsion is also formulated, to reach the optimization of cooling efficiency.
In Fig. 5, in the exit portion H of contact in rolling, thickness of pipe wall already close to or reach the size of final wall thickness.Pipe
Wall is relatively thin, and the tubing in this region is particularly easy to generate unstable phenomenon.The revolution that milling train revolving body rotates when rolling
Revolving speed reaches 350-500rpm, and the coolant liquid that static spray disk or nozzle are sprayed can be broken up, be made by this high-speed rotating roll
Cooling water is difficult spray to the exit portion H of contact in rolling.Increase cooling water flow and pressure and is also difficult to allow more coolings
In liquid spray to required region, this static spray disk or nozzle cooling efficiency of the prior art are low, and intensity of cooling is inadequate, can not
Further increase rolling mill yield.
Summary of the invention
The purpose of the present invention is aiming at the shortcomings in the prior art, provide a kind of cooling means of planet tube grimper, energy
The cooling effect for promoting planet tube grimper deformed area by a relatively large margin, to improve the rolling quality and yield of planet tube grimper.
To achieve the above object, the invention adopts the following technical scheme:
A kind of cooling means of planet tube grimper, is used for the cooling of planet tube grimper；The planet tube grimper has spray
Head, roll, revolving body, rolling centerline and contact in rolling；It is characterized by: the milling train work when, the spray head with return
Swivel surrounds the rolling centerline synchronous rotary, and the spray head is to the contact in rolling spray cooling water and/or the spray
Head is to the roll spray cooling water.
Further, the spray head is mounted between the roll gap of roll.
Further, the direction of the spray cooling water is identical as the direction of roll rotation.
Further, the direction of the spray cooling water is contrary with roll rotation.
It is after by adopting the above technical scheme the utility model has the advantages that
1, cooling efficiency is improved, the yield of planet tube grimper is improved
Roll is mounted on revolving body by roller base, and when milling train works, roller rotational work, spray head surrounds the rolling
Center line revolution synchronous with roller base.In rotary course, spray head is formed to contact in rolling and/or roll spray cooling water
Rotation cooling.And the roll that the cooling water of these sprays can't be synchronized rotation is broken up.Around by tube rolling material when roll rolls
360 ° of high speed rotation, water-cooling-sprayer are also rotated with synchronous speed, the spray of the side Bian Xuanzhuan.Such cooling, all is cold
But the equal spray of liquid can obtain uniform cooling at 360 ° by tube rolling material to pipe deformations region.This rotation is cooling can be directly
It is directed at the specified region in contact in rolling, can accomplish fixed point cooling.Such as nozzle is installed between the roll gap of roll, specially
The deformed area region exit portion H is cooled down, the cooling capacity of institute's tube rolling material under high-speed rolling operating condition can be effectively improved,
The temperature of rolled piece and the hardness of copper pipe in tube rolling deformed area can be effectively controlled, is unlikely to copper pipe under speed in higher roll
Unstability significantly promotes rolling efficiency.
2, the service life of roll is improved
To roll and the rolling deformation of copper pipe can be rolled between the roll gap of planet tube grimper by cartridge nozzle on roller base
Area's spray coolant liquid.It can make just to leave deformed area along the direction of roll rotation along the inverse spray in direction of spray or inverse roll rotation
Rolling face is timely cooled down, to improve the service life of roll.
3, aluminum pipe is rolled
The planetary rolling of aluminium-alloy pipe is always a problem.Aluminum metal has lower fusing point and softening temperature, planet
Temperature rise caused by the rolling of single pass heavy deformation can generate the phenomenon that viscous roll and viscous plug when pipe mill rolls aluminum pipe.The operation of rolling
In, spray head realizes efficiently cooling, can effectively reduce the temperature of deformed area to contact in rolling or roll spray cooling water,
The effective generation for reducing roll banding, viscous plug phenomenon.
Detailed description of the invention
Fig. 1 is the schematic device of the cooling means embodiment one of planet tube grimper of the present invention；
Fig. 2 is the partial structurtes enlarged drawing of Fig. 1；
Fig. 3 is the three-dimensional position schematic diagram of roll and spray head；
Fig. 4 is the schematic device of the cooling means embodiment two of planet tube grimper of the present invention
Fig. 5 is the cooling means schematic diagram of existing planetary rolling.
In figure:
101, by tube rolling base, 102, plug, 103, roll, 104, cooling water, 106, spray disk, 107, drawn and rolled tube；
201, cooling water inlet one, 202, auxiliary umbrella tooth, 203, central tube water jacket one, 204, main chute tooth, 205, revolving body,
206, spray module one, 207, roller base, 208, spray head；
301, sealing element one, 302, bolt, 303, bearing one, 304, center pipe assembly, 305, sealing water chamber one, 306, company
Adapter tube；
401, shift plate one, 402, shift plate two, 403, sealing water chamber two, 404, bearing two, 405, spray module two, 406, water
Set two, 407, cooling water inlet two, 408, sealing element two, 409, water inlet ring, 410, outlet nozzle boss, 411, rotation spray disk；
H, the exit portion of contact in rolling, K, deformed area, G, revolving body direction of rotation, AC, C-C, rolling centerline roll
The axis one of roller oneself, the axis two of BC, roll oneself.
Specific embodiment
In the following with reference to the drawings and specific embodiments, invention is described in more detail.
Embodiment one
Fig. 1 gives a kind of schematic device with the method for the present invention.
As seen from Figure 1, the major-minor motor (not shown) of planet tube grimper respectively drives main chute tooth 204 and auxiliary umbrella tooth
202 rotations, main chute tooth 204 drive revolving body 205 to rotate.Dress is filled on roller base 207 there are three roller base 207 on revolving body 205
There is roll 103.When tube rolling, under the driving of major-minor motor, revolving body 205, roller base 207 and roll 103 are around rolling centerline
C-C revolution.Roll 103 also presses axis AC or the BC rotation of roll oneself simultaneously.
Fig. 1 can also be seen that cooling water is entered by the cooling water inlet 201 of inlet of rolling mill, through milling train central tube water jacket
It is connected after one 203 entrance spray modules 1 with spray head 208.Spray module 1 is connected with the fastening of revolving body 205.When rolling
The two has synchronous revolving speed, and at this moment spray head can be rotated with revolution speed same as planet tube grimper revolving body 205, on one side
Rotation is on one side to 103 spray cooling water of milling train deformed area K and/or roll.
Drawn and rolled tube 107 is become after rolling by tube rolling base 101.
It is preferred that: the direction of aforementioned spray cooling water is identical or opposite as the direction of roll rotation.
Fig. 2 is the partial structurtes enlarged drawing of Fig. 1.As seen from Figure 2, cooling water by pump group through cooling water inlet 1,
Central tube water jacket 1 enters cooling water and seals water chamber 1, and sealing water chamber 1 passes through connecting tube 306 and cooling spray
208 are connected.In Fig. 1-2, several connecting tubes 306 are connected with spray head 208.Spray head 208 can also be fixed on roller base 207 or revolution
On body 205.When assembling, revolving body 205 is connected by one group of bolt 302 with the fastening of spray module 206.Bearing 1 guarantees water spray
Component 206, cooling tube 306 and spray head 208 are rotated around milling train center pipe assembly 304, and multiple sealing elements 1 prevent coolant liquid from letting out
Leakage.In this way, spray head 208 is enable to rotate around rolling centerline C-C.
When the milling train works, it may be assumed that when planet tube grimper tube rolling.Revolving body 205 around rolling centerline C-C high speed rotation,
Revolving body direction of rotation G is detailed in Fig. 2.Revolving body also drives spray module 206 to rotate synchronously while rotation.Cooling water successively leads to
Supercooled water import 1, coolant liquid central tube water jacket 1, spray module 206, connecting tube 306 and spray head 208, with rotation
The mode of injection sprays to contact in rolling (K) and/or roll 103.
The injection structure of connecting tube 306 and spray head 208 is not used.Directly the right side of spray module 206 is opened one group small
Hole, aperture are communicated with sealing water chamber 305.In this way, aperture is as water-cooling-sprayer.This structure is a kind of rotation spray dish structure,
It is also a kind of cooling structure of planet tube grimper rotation.
Fig. 3 is the three-dimensional figure of planet tube grimper cooling means of the present invention, and preferably: spray head 208 is mounted on 3 planetary rollings
Between the roll gap of machine roll 103, spray head 208 rotates spray coolant liquid to contact in rolling K and/or roll 103.Revolving body rotation
Direction G is detailed in Fig. 3.When tube rolling, spray head 208 and revolving body synchronous rotary.At this point, the coolant liquid 104 that spray head sprays is from roll gap
By being sprayed onto contact in rolling K and/or roll 103, the path that the roll 103 of synchronous rotation can not stop coolant liquid to be sprayed, institute
There is coolant liquid is all unobstructed to be sprayed onto contact in rolling K and/or roll 103.
Embodiment two
Fig. 4 gives the schematic diagram of embodiment two.With embodiment one distinguish be embodiment two selected milling train go out
Oral area point carries out rotation cooling to contact in rolling K and/or roll 103.
Outlet nozzle boss 410 is fixed on the protective cover (being not drawn into figure) of milling train.The protective cover of milling train is fixed with ground.
Spray module 2 405 is mounted on outlet nozzle boss 410 by bearing 2 404.The right of spray module 2 405 and water inlet ring
409 connect, and cooling water inlet 2 407, the water jacket in cooling water inlet 2 407 and spray module 2 405 are equipped in water inlet ring 409
2 406 communicate with sealing water chamber 2 403.The left side of spray module 2 405 is rotation spray disk 411, opens one on rotation spray disk 411
Group aperture, the aperture are communicated with sealing water chamber 2 403.In this way, the aperture on rotation spray disk is as water-cooling-sprayer.This structure
It is another rotation spray dish structure.When work, the cooling water for being pumped into cooling water inlet 2 407 enters sealing water chamber 2 408 simultaneously
It is sprayed by rotation spray disk 411 to contact in rolling K and/or roll 103.Sealing element 2 408 ensures that spray module 2 405 rotates
When cooling water sealing.
The rotational energy of rotation spray disk 411 is driven by revolving body 205.Such as: a shift plate 1 is devised on revolving body,
Shift plate 2 402 is provided on the corresponding position of spray module 2 405, when milling train host rotates, milling train revolving body 205 is rotated,
Shift plate 1 stirs the synchronous rotation of shift plate 2 402, makes spray module 2 405 and 205 synchronous rotary of revolving body in tube rolling, real
Now rotation cooling.
To illustrate effect, present inventor has performed related experiment, experimental result is as follows:
Upper table explanation:
Example 1 of the present invention,
It is cooled down using the method that the type of cooling of the present invention and the existing type of cooling combine.Two coolings are designed with flow
Regulatory function.Select small flow cooling when pipe bites, as rolling normally steps into normal cooling.Rotate cooling flow
20m3/ h, static cooling 20m3/h。
Example 2 of the present invention,
For individual cooling means of the present invention.Nozzle rotation cooling.
Example 3 of the present invention,
The rotation spray disk type of cooling is used in the exit portion of milling train, rotation spray Pan Chu makes a call to 3 groups of apertures.Every group of aperture is in circle
Account for about 60 ° of range on week, the position of this 3 groups of apertures is corresponding with Roll-gap position when rotation is cooling.
Conclusion: as seen from the above table, in the case where same sample blanks pipe specification, time decline about 3-4 minutes, planetary rolling are rolled only
The production efficiency of machine rolling copper pipe obtains tremendous increase.
The present invention is not limited to the above embodiments, and all technical solutions formed using equivalent replacement or equivalence replacement belong to this
Invent claimed range.
Claims (4)
1. a kind of cooling means of planet tube grimper, is used for the cooling of planet tube grimper；The planet tube grimper has spray head
(208), roll (103), revolving body (205), rolling centerline (C-C) and contact in rolling (K)；It is characterized by: the row
When star pipe mill works, the spray head (208) and revolving body (205) surround the rolling centerline (C-C) synchronous rotary, described
Spray head (208) contact in rolling Xiang Suoshu (K) spray cooling water and/or the spray head (208) Xiang Suoshu roll (103) injection
Cooling water.
2. a kind of cooling means of planet tube grimper according to claim 1, it is characterised in that: spray head (208) peace
Between the roll gap of roll.
3. a kind of cooling means of planet tube grimper according to claim 1, it is characterised in that: the direction of spray cooling water
It is identical as the direction of roll rotation.
4. a kind of cooling means of planet tube grimper according to claim 1, it is characterised in that: the direction of spray cooling water
It is contrary with roll rotation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710407801.3A CN107052053B (en) | 2017-06-02 | 2017-06-02 | A kind of cooling means of planet tube grimper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710407801.3A CN107052053B (en) | 2017-06-02 | 2017-06-02 | A kind of cooling means of planet tube grimper |
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| Publication Number | Publication Date |
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| CN107052053A CN107052053A (en) | 2017-08-18 |
| CN107052053B true CN107052053B (en) | 2019-05-17 |
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| CN112893458B (en) * | 2020-12-25 | 2023-03-31 | 广州众山精密科技有限公司 | Warm rolling process for stainless steel section |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5794407A (en) * | 1980-12-05 | 1982-06-11 | Mitsubishi Heavy Ind Ltd | Cold rolling device for pipe material |
| CN85106452A (en) * | 1985-08-28 | 1987-04-08 | 高建民 | Three-roller negative feature corner set mill and punch |
| CN2090742U (en) * | 1990-11-12 | 1991-12-18 | 蔡永福 | Rotary mould rolling equipment |
| JPH0615311A (en) * | 1992-06-30 | 1994-01-25 | Kawasaki Steel Corp | Tilting rolling method for seamless steel tube |
| CN2414854Y (en) * | 2000-03-08 | 2001-01-17 | 常州市兴荣管业有限公司 | Three-roller planetary pipe mill |
| CN2754760Y (en) * | 2004-12-03 | 2006-02-01 | 佛山市顺德区冠邦科技有限公司 | Cool and oxidation preventor of planetary pipe bar roller |
| CN101850364A (en) * | 2009-10-19 | 2010-10-06 | 宁波金田铜管有限公司 | Three-roller planetary rolling method for rolling brass tube |
| CN202162210U (en) * | 2011-08-25 | 2012-03-14 | 江苏兴荣美乐铜业有限公司 | Water spray jacket and three-roller planetary mill for improving evenness of copper pipe grains |
-
2017
- 2017-06-02 CN CN201710407801.3A patent/CN107052053B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5794407A (en) * | 1980-12-05 | 1982-06-11 | Mitsubishi Heavy Ind Ltd | Cold rolling device for pipe material |
| CN85106452A (en) * | 1985-08-28 | 1987-04-08 | 高建民 | Three-roller negative feature corner set mill and punch |
| CN2090742U (en) * | 1990-11-12 | 1991-12-18 | 蔡永福 | Rotary mould rolling equipment |
| JPH0615311A (en) * | 1992-06-30 | 1994-01-25 | Kawasaki Steel Corp | Tilting rolling method for seamless steel tube |
| CN2414854Y (en) * | 2000-03-08 | 2001-01-17 | 常州市兴荣管业有限公司 | Three-roller planetary pipe mill |
| CN2754760Y (en) * | 2004-12-03 | 2006-02-01 | 佛山市顺德区冠邦科技有限公司 | Cool and oxidation preventor of planetary pipe bar roller |
| CN101850364A (en) * | 2009-10-19 | 2010-10-06 | 宁波金田铜管有限公司 | Three-roller planetary rolling method for rolling brass tube |
| CN202162210U (en) * | 2011-08-25 | 2012-03-14 | 江苏兴荣美乐铜业有限公司 | Water spray jacket and three-roller planetary mill for improving evenness of copper pipe grains |
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Denomination of invention: A cooling method of planetary tube mill Effective date of registration: 20221206 Granted publication date: 20190517 Pledgee: China Merchants Bank Co.,Ltd. Changzhou Branch Pledgor: Jiangsu Xingrong Hi-Tech Co.,Ltd. Registration number: Y2022980025182 |