CN101450349A - Installation adjusting method of piercing mill and guide disk for rolling steel tube - Google Patents
Installation adjusting method of piercing mill and guide disk for rolling steel tube Download PDFInfo
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- CN101450349A CN101450349A CNA2008101541837A CN200810154183A CN101450349A CN 101450349 A CN101450349 A CN 101450349A CN A2008101541837 A CNA2008101541837 A CN A2008101541837A CN 200810154183 A CN200810154183 A CN 200810154183A CN 101450349 A CN101450349 A CN 101450349A
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- godet
- punch
- piercing mill
- output shaft
- absolute altitude
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Abstract
The invention provides a piercing mill for a rolled steel pipe, wherein the connecting mode of an output shaft of a speed reducer of the piercing mill and a guide disc of the piercing mill is internal and external hexagonal sleeved matching. The invention simultaneously provides a method for assembling and adjusting the piercing mill for the rolled steel pipe and the guide disc of the piercing mill. The invention has the advantages of making the assembly means of the guide disc of the piercing mill more convenient and quicker, prolonging the service life of equipment, reducing the fault rate and the fault time of the equipment, saving the maintenance cost and the spare part cost, overcoming the mass defects of ellipticity, infolding, inner scaring and wall unevenness of the tail of a rolling piece, dead burning of the guide disc, and so on, improving the product quality and the lumber recovery, and creating considerable economic benefit. The invention performs a series of invention and improvement on the basis of the prior Italy design of the piercing mill of a tube rolling factory according to the actual on-scene service condition, prolongs the service life of the equipment, reduces the failure rate and the failure time of the equipment, saves the maintenance cost and the spare part cost, improves the product quality and the lumber recovery, and creates considerable economic benefit.
Description
Technical field
The present invention relates to a kind of is at the punch of the vertical Di Saier oblique milling of the roller rolled steel tube of the MPM of tube rolling factory unit and the installation adjusting method of godet thereof.
Background technology
Generally, the installation of the speed reducer output shaft of rolled steel tube punch plays guide effect, also play the transversely deforming of restriction hollow billet, promote to extend, control hollow billet size also applies the godet of the effect of axial tension stress to the deformed area metal, the connected mode of its output shaft and godet is a flute profile cover tooth connected mode, and the height of the godet of installing on the axial location of reductor and the output shaft all directly determines " ring seal pass " that rolled by piercing mill is central promptly the plus-minus pad adjustment of reductor axial location and the plus-minus pad adjustment of godet height all to be directly connected to whether to realize steel pipe ring seal pass.The punch godet of rolled steel tube is installed the method for attachment of adopting the flute profile cover, and the phenomenon of playing tooth, tooth spot corrosion of flute profile cover tooth often takes place, and with the godet stall, with commentaries on classics, abnormal sound, bad phenomenon such as stop steathily and take place, have a strong impact on production and product quality.Because the Height Adjustment of godet is inaccurate, is difficult to form the ring seal pass in the rolled steel tube perforation procedure, rolled piece has but been formed occur invagination, in scab, mass defects such as wall unevenness, godet steel bonding.Godet axially be the distance of the center line of godet with respect to the roll center line because the continuous variation of product specification, hollow billet rear wall thickness ununiformity occurs, the phenomenon of ovality arranged, influence the rate of becoming a useful person of product quality and product.
Summary of the invention
For solving the problem that exists in the above-mentioned technology, the purpose of this invention is to provide a kind of punch of rolled steel tube and the installation adjusting method of godet thereof, what be beneficial to avoid godet mounting teeth jacket generation flute profile cover tooth plays tooth, the generation of tooth point corrosion, stop the godet stall, with commentaries on classics, abnormal sound, multiple phenomenon such as stop steathily, improve production efficiency and product quality, improved the product rate of becoming a useful person simultaneously.
For realizing goal of the invention, the technical solution used in the present invention provides a kind of punch of rolled steel tube, include the speed reducer output shaft of punch, described output shaft is equipped with the godet that play the guiding role, its godet is two horizontally disposed godets of left-right symmetry, wherein: the outer six sides cover of described output shaft is that the inside and outside six sides cover of spline shell type cooperates with the connected mode of the interior six sides cover of godet, realizes installing fast.
The godet installation adjusting method of the described punch of a kind of claim 1 also is provided, and this method may further comprise the steps:
(1), the installation of punch godet
Have the punch godet that interior six sides overlap with the overhead traveling crane lifting, be put on the outer six sides cover of being equipped with of the godet reductor output shaft, the gland with locking effect is installed is afterwards again got final product;
(2), the Height Adjustment of punch godet
1. respectively the absolute altitude of the cross central line of punch both sides godet, godet absolute altitude, speed reducer output shaft spindle nose is measured, compared, calculate actual measurement numerical value and design difference according to above-mentioned measurement data and design load;
2. according to the result who 1. calculates, directly add and subtract pad under the punch godet, realize the requirement of pass ring seal between two godets, the absolute altitude difference that promptly reaches two godets is the requirement of 7mm; If the absolute altitude difference 7mm of punch godet spindle nose absolute altitude difference and design load does not meet, then the plus-minus pad is that 7mm is consistent until the absolute altitude difference with two godet design loads under the punch godet;
(3), the axial adjustment of punch godet
1. punch godet vertical equity is apart from the ovality that is determining rolled steel tube in the deformed area, at first measure between two godet vertical equities of punch apart from a, according to the empirical equation of the perforation godet adjustment of punch for according to carrying out the data contrast and calculating, calculating design load and measured value compares so that readjust
Empirical equation: DB/ (0,86-0,90) * (1,07-1,15)
Wherein: DB produces the diameter of rolled parts for perforation;
2. the error amount result who goes out according to aforementioned calculation, the horizontal center line of direct mobile punch godet, change the axial location of punch godet, with reductor fixedly bush seat be connected the adjustment pad place of the godet horizontal center line of memorial archway, described empirical equation calculated value according to the horizontal center line of godet is compared with measured value, measured value then subtracts pad greater than calculated value, less than measured value shimming and change two horizontal ranges between the godet then, realize the requirement of rolled steel tube pass ring seal and satisfy perforation procedure flow of metal requirement.
The effect that the present invention reaches is that the godet mounting means of this punch is more convenient, quick, has realized prolonging the service life of equipment, has reduced breakdown rate and fault time, has saved maintenance and spare part expense; Reduced the rolled piece afterbody ovality, invagination, in scab, mass defect such as wall unevenness, godet steel bonding, improved product quality and lumber recovery, created considerable economic.On the basis of former Italy design, a series of invention and improvement have been carried out at tube rolling factory punch according to the actual operating position at scene, realized prolonging the service life of equipment, reduce breakdown rate and fault time, saved maintenance and spare part expense; Improve product quality and lumber recovery, created considerable economic.
Description of drawings
Fig. 1,2 is punch output shaft of the present invention and godet mounting structure schematic diagram;
Fig. 3 is godet height of the present invention, axially adjusts schematic diagram;
Fig. 4 is a godet method of adjustment FB(flow block) of the present invention.
Among the figure:
1, the fixing adjustment pad of bush seat 3, godet height of speed reducer output shaft 2, reductor
4, six sides in godet 5, reductor 6, the godet
7, the adjustment pad of outer six sides 8 of speed reducer output shaft, godet horizontal center line
The specific embodiment
Reaching embodiment in conjunction with the accompanying drawings describes the punch of rolled steel tube of the present invention and the installation adjusting method of godet thereof.
The punch of rolled steel tube of the present invention, include the speed reducer output shaft of punch, output shaft is equipped with the outer godet device that also plays the transversely deforming of restriction hollow billet, promotes to extend, control the hollow billet size and the deformed area metal is applied the effect of axial tension stress that play the guiding role, its output shaft is connected the connected mode that changes the cooperation of inside and outside six sides cover into the connected mode of godet by intrinsic flute profile cover tooth, and mounting means is more convenient, quick.And the height of the godet of installing on the axial location of reductor and the output shaft all directly determines " ring seal pass " that rolled by piercing mill is central promptly the plus-minus pad adjustment of reductor axial location and the plus-minus pad adjustment of godet height all to be directly connected to whether can realize the ring seal pass.
As shown in Figure 1, 2, the punch structure of rolled steel tube is the speed reducer output shaft 1 that includes punch, described output shaft is equipped with the godet 4 that play the guiding role, its godet is that the horizontally disposed absolute altitude difference of left-right symmetry is two godets of 7mm, described speed reducer output shaft 1 is given to inside and outside six sides overlap by the spline housing mode with the connected mode of godet 4 and is cooperated, fit system as shown in Figure 1, 2, six sides 6 cooperate the mode of assembling in adopting in the godet with outer six sides' of speed reducer output shaft interior overcoat, carry out simple and direct fast installation.
Shown in Fig. 3,4, the godet of rolled steel tube punch is installed with method of adjustment and be may further comprise the steps:
(1), the installation of punch godet
Have the godet 4 of interior six sides' punch with overhead traveling crane lifting, be put on the speed reducer output shaft 1 that outer six sides are housed of godet reductor, the gland with locking effect is installed is afterwards again got final product.
(2), the Height Adjustment of punch godet
1. respectively cross central line, godet absolute altitude, the speed reducer output shaft spindle nose of the godet 4 of punch both sides carried out level measurement, absolute altitude difference according to above-mentioned measurement data and two godets of design load is that 7mm compares, and calculates actual measurement numerical value and design difference;
2. according to the result who 1. calculates, directly add and subtract the adjustment pad 3 of godet height under the punch godet, the requirement that realizes pass ring seal between two godets is that the absolute altitude difference of two godets is the requirement of 7mm; Do not meet if the absolute altitude difference of punch godet spindle nose absolute altitude difference and original design is the theory of 7mm, then subtracting pad under the punch godet is that 7mm be consistent until the absolute altitude difference that is two godets mutually in design load.
(3), the axial adjustment of punch godet
1. punch godet vertical equity is apart from the ovality that is determining rolled steel tube in the deformed area, and (DB/ (0,86-0,90) * (1,07-1,15) wherein: DB produces the diameter of rolled parts for perforation at first to measure between two godet vertical equities of punch the empirical equation adjusted apart from a, according to the perforation godet of punch.For according to carrying out the data contrast and calculating, calculate theoretical value and measured value and compare so that readjust.
2. the error amount result who goes out according to aforementioned calculation, the horizontal center line of direct mobile punch godet, change the axial location of punch godet, promptly as shown in Figure 3, fixedly comparing with measured value according to the empirical equation calculated value of the horizontal center line of godet at bush seat 2 adjustment pad 8 places that are connected the godet horizontal center line of memorial archway with reductor, measured value then subtracts pad greater than calculated value, less than measured value shimming and change two horizontal ranges between the godet then, realize the requirement of rolled steel tube pass ring seal and satisfy perforation procedure flow of metal requirement.
Claims (3)
1, a kind of punch of rolled steel tube, include the speed reducer output shaft of punch, described output shaft is equipped with the godet that play the guiding role, its godet is two horizontally disposed godets of left-right symmetry, it is characterized in that: the outer six sides cover of described output shaft is that the inside and outside six sides cover of spline shell type cooperates with the connected mode of the interior six sides cover of godet, realizes installing fast.
2, the punch of rolled steel tube according to claim 1, the absolute altitude difference of described two godets is 7mm.
3, the godet installation adjusting method of the described punch of a kind of claim 1, this method may further comprise the steps:
(1), the installation of punch godet
Have the punch godet that interior six sides overlap with the overhead traveling crane lifting, be put on the outer six sides cover of being equipped with of the godet reductor output shaft, the gland with locking effect is installed is afterwards again got final product;
(2), the Height Adjustment of punch godet
1. respectively the absolute altitude of the cross central line of punch both sides godet, godet absolute altitude, speed reducer output shaft spindle nose is measured, compared, calculate actual measurement numerical value and design difference according to above-mentioned measurement data and design load;
2. according to the result who 1. calculates, directly add and subtract pad under the punch godet, realize the requirement of pass ring seal between two godets, the absolute altitude difference that promptly reaches two godets is the requirement of 7mm; If the absolute altitude difference 7mm of punch godet spindle nose absolute altitude difference and design load does not meet, then the plus-minus pad is that 7mm is consistent until the absolute altitude difference with two godet design loads under the punch godet;
(3), the axial adjustment of punch godet
1. punch godet vertical equity is apart from the ovality that is determining rolled steel tube in the deformed area, at first measure between two godet vertical equities of punch apart from a, according to the empirical equation of the perforation godet adjustment of punch for according to carrying out the data contrast and calculating, calculating design load and measured value compares so that readjust
Empirical equation: DB/ (0,86-0,90) * (1,07-1,15)
Wherein: DB produces the diameter of rolled parts for perforation;
2. the error amount result who goes out according to aforementioned calculation, the horizontal center line of direct mobile punch godet, change the axial location of punch godet, with reductor fixedly bush seat (2) the adjustment pad (8) that is connected the godet horizontal center line of memorial archway locate, described empirical equation calculated value according to the horizontal center line of godet is compared with measured value, measured value then subtracts pad greater than calculated value, less than measured value shimming and change two horizontal ranges between the godet then, realize the requirement of rolled steel tube pass ring seal and satisfy perforation procedure flow of metal requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101541837A CN101450349A (en) | 2008-12-17 | 2008-12-17 | Installation adjusting method of piercing mill and guide disk for rolling steel tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101541837A CN101450349A (en) | 2008-12-17 | 2008-12-17 | Installation adjusting method of piercing mill and guide disk for rolling steel tube |
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| CN101450349A true CN101450349A (en) | 2009-06-10 |
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| CNA2008101541837A Pending CN101450349A (en) | 2008-12-17 | 2008-12-17 | Installation adjusting method of piercing mill and guide disk for rolling steel tube |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101797590A (en) * | 2010-03-18 | 2010-08-11 | 太原重工股份有限公司 | Guide disc locking device of tube rolling mill |
| CN103890277A (en) * | 2012-10-26 | 2014-06-25 | 株式会社小松制作所 | Wheel loader |
| CN104174650A (en) * | 2014-07-14 | 2014-12-03 | 天津钢管集团股份有限公司 | Method for preventing two-roll vertical diesel skew-rolling perforator guiding disc from sticking steel |
| CN104588411A (en) * | 2015-01-26 | 2015-05-06 | 张家港兴业钢管有限公司 | Perforating machine for producing seamless steel tube |
| CN108994085A (en) * | 2018-08-13 | 2018-12-14 | 林州凤宝管业有限公司 | A kind of raising godet service life reduces godet steel bonding, scratches technique |
-
2008
- 2008-12-17 CN CNA2008101541837A patent/CN101450349A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101797590A (en) * | 2010-03-18 | 2010-08-11 | 太原重工股份有限公司 | Guide disc locking device of tube rolling mill |
| CN101797590B (en) * | 2010-03-18 | 2011-08-10 | 太原重工股份有限公司 | Guide disc locking device of tube rolling mill |
| CN103890277A (en) * | 2012-10-26 | 2014-06-25 | 株式会社小松制作所 | Wheel loader |
| US8997915B2 (en) | 2012-10-26 | 2015-04-07 | Komatsu Ltd. | Wheel loader |
| CN103890277B (en) * | 2012-10-26 | 2015-06-10 | 株式会社小松制作所 | Wheel loader |
| CN104174650A (en) * | 2014-07-14 | 2014-12-03 | 天津钢管集团股份有限公司 | Method for preventing two-roll vertical diesel skew-rolling perforator guiding disc from sticking steel |
| CN104588411A (en) * | 2015-01-26 | 2015-05-06 | 张家港兴业钢管有限公司 | Perforating machine for producing seamless steel tube |
| CN108994085A (en) * | 2018-08-13 | 2018-12-14 | 林州凤宝管业有限公司 | A kind of raising godet service life reduces godet steel bonding, scratches technique |
| CN108994085B (en) * | 2018-08-13 | 2019-11-01 | 林州凤宝管业有限公司 | A kind of raising godet service life reduces godet steel bonding, scratches technique |
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Open date: 20090610 |