CN1280888A - 4-roller (cross) finishing mill with adjustable dual-driven input axles for H-shaped section - Google Patents
4-roller (cross) finishing mill with adjustable dual-driven input axles for H-shaped section Download PDFInfo
- Publication number
- CN1280888A CN1280888A CN 99108768 CN99108768A CN1280888A CN 1280888 A CN1280888 A CN 1280888A CN 99108768 CN99108768 CN 99108768 CN 99108768 A CN99108768 A CN 99108768A CN 1280888 A CN1280888 A CN 1280888A
- Authority
- CN
- China
- Prior art keywords
- rollers
- roll
- worm screw
- screw
- 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
Images
Landscapes
- Metal Rolling (AREA)
Abstract
An adjustable four roll (cross) finishing mill with dual drive input axles for H-shaped section features that 4 rolls have included angles of 90 deg between them and can synchronously rotate under the drive of synchronous rotating mechanism driven by two drive axles. A workpiece is actively compressed and extended at each position on same cross section so as to obtain uniform deformation, uniformly distributed crystal grains and high precision. Its 4 rolls can be manually and automatically controlled to perform several operations.
Description
The present invention relates to a kind of rolling machinery, particularly four rollers (cross) finishing mill of the steel of rolling H type section and nonferrous materials.
Domestic and international existing H shape rolling mill has three kinds of forms at present:
1, four-roll universal rolling machine: it is by one two roller horizontal mill and a vertical duo mill, compact in a frame, but, two horizontal roller axis are in a plane, the axis of two edger rolls is in another plane, though they all are active rotation, be to carry out at two sections that close on mutually respectively to the compression and the extension of rolled piece, it is a kind of variation of compact mill.
2, another kind of four-roll universal rolling machine: be the adjacent exit of a duo mill, load onto an opposite roller, can depress adjustment about edger roll, horizontal roller is that initiatively two edger rolls are passive.Four roll axis are not also in same plane.More than the H shaped steel precision that shuts out of two kinds of universal mills relatively poor, defective is more.
3, its horizontal roller diameter of another kind of four-roll universal rolling machine more initiatively.Two edger roll diameters are less, for adjustable, be contained in the neutral gear of two horizontal roller, though the axis of four rollers in same plane,, two edger rolls are unpowered transmissions, are passive.See shown in Figure 1.Its feature is: (1) horizontal roll is up and down initiatively compressed and is extended rolled piece.Therefore, the compound plate of H type rolled piece (14) is initiatively rolling fully, but two side wing edges of H type rolled piece (14) are to drag the slot that the garden constitutes outside horizontal roller (6,6) side and two edger rolls (4,7) of the edge of a wing to extrude when compound plate extends forward, this form is also referred to as passive rolling, and two edger rolls this moment (4,7) are that the rolled piece lateral surface that is extended drags its rotation.The resistance of the metal flow of the interior lateral surface on its four edges of a wing of result is inconsistent, the inboard is an active Flow, the outside will overcome the rotational resistance of two edger rolls in the metal flow, and the draught pressure P2 that the size of its resistance is approximately equal to the edge of a wing multiply by mechanism that the rolling friction coefficient adds edger roll and rubs and examine coefficient.The order of magnitude of the draught pressure P2 of two side wing edges is that 2/3 of total draught pressure P is P
1+ P
2≈ 2/3P, P1 are the edge of a wing, left side draught pressure P
2Be the edge of a wing, right side draught pressure.Because outside metal flow resistance is inconsistent in the edge of a wing, the stress that causes the rolled piece metal inside causes flow of metal inhomogeneous in continuous fluctuation, and then causes length size fluctuation in the edge of a wing in the operation of rolling, or by pulling-down.It is to cause one of size reason rambunctious.Though various countries in the national standard of H shaped steel to dimensional tolerance all stipulate looser, still often shut out one of improperly sized its reason of product just here.See the specification subordinate list: CNS GB11263-89.Shown in table 1 and the table 4.
The objective of the invention is to provide a kind of novel structure, precision height, easily manufactured H section bar four rollers (cross) finishing mill, it should have following feature:
(1) two final drive shaft input frame makes axis four in same plane be mutually 90.Roll reach synchronous incorgruous rotation.
(2) on production line, the roll gap amount 3mm or the 2mm of four rolls can arbitrarily be pressed down to 0, and its screw-down can be that four rollers are depressed synchronously, also can be that up-down rollers or left and right sides roller are depressed respectively synchronously; Also four rollers are depressed separately; Screw-down can be manual, also can be electronic and automatic remote control, various ways.(3) the radially adjustment amount that leaves the production line roll can reach 12mm or bigger, can think that also the roll diameter of roller variable quantity is D.± 12mm or bigger.(4) many four rollers (cross) H section bar finishing mill is by continuous rolling relationship and following pass: the finished product hole is the H type, and each frame is pressed progressive additive before the finished product
The mm finishing mill unit that type is formed can shut out good quality and high precision H section bar.
Fig. 1, the four-roll universal rolling machine structure diagram is among the figure: 1, top roll screw-down; 2, frame; 3, right edger roll screw-down; 4, right edger roll (passive); 5, go up horizontal roller; 6, following horizontal roller; 7, left edger roll (passive); 8, left edger roll screw-down; 9, Hooks coupling universal coupling; 10, gear-box; 11, shaft coupling; 12, motor; 13, motor cool wind box; 14, H type rolled piece.
Fig. 2, A-A section and the B-B cross section view of adjustable four rollers of two transmission power shafts (cross) H section bar finishing mill figure.Wherein: 1, left box body; 2, horizontal roller; 3, the eccentric bushing of band displacement worm gear; 4, bearing; 5, positioning ring; 6, displacement spiral bevel gear; 7, following driving shaft; 8, friction top; 9, right edger roll axle; 10, active worm screw; 11, bearing; 12, passive worm screw; 13, duplex chain wheel; 14, single strand chain; 15, right case; 16, edger roll; 17, go up driving shaft; 18, left edger roll axle; 19, displacement spiral bevel gear.
Fig. 3, the C of adjustable four rollers of two transmission power shafts (cross) H section bar finishing mill figure is to view.Wherein 20, left and right edger roll screw-down, 21, horizontal roller screw-down up and down.
Fig. 4, adjustable four rollers of two transmission power shafts (cross) H shaped steel finishing mill picture group is among the figure: 1, mill-separator; 2, adjustable four rollers of two transmission power shafts (cross) H section bar finishing stand; 3, frame hold-down mechanism; 4, Hooks coupling universal coupling; 5, gear distribution box; 6, shaft coupling; 7, motor; 8, motor cool wind box; 9, support; 10, driver base; 11, H shaped steel rolled piece section diagrammatic sketch.Fig. 5, H type rolled piece finishing groove figure.
Technical scheme of the present invention: comprise casing, the screw-down of roller system and four roll synchronous rotary mechanisms and four rolls, it is to form like this, with reference to Fig. 2, Fig. 3 is described as follows:
1, four roll synchronous rotary mechanisms:
A. upper and lower horizontal roller (2) is contained in respectively on driving shaft (17) and the lower driving shaft (7), they are according to the kind of drive of two traditional roller horizontal mills, two synchronous antidromous power transmission shafts by the outer gear-box of frame pass through two Hooks coupling universal couplings, drive respectively upper driving shaft (17) and lower driving shaft (7) (can be referring to Fig. 4, the outer transmission structure shown in adjustable four rollers of two transmission power shafts (cross) the H shaped steel finishing mill picture group) make they also synchronous different to rotation.
B. descend driving shaft (7) by the engagement of the displacement spiral bevel gear (6) of a pair of axial dependence positioning ring (5) position-adjustable, drive right vertical roll shaft (9) synchronous different to rotation, namely drive right edger roll (16) synchronous different to rotation.
C. go up the engagement of driving shaft (17), drive the synchronous incorgruous rotation of left edger roll axle (18), just drive the synchronous incorgruous rotation of left edger roll (16) by another the displacement spiral bevel gear (19) that can transpose to axial dependence positioning ring (5).
More than four synchronously the rotation direction direction of the rolls of rotation constitute just and promote the rolled piece metal and flow towards the direction of advancing.
D. according to the roll different-diameter, utilize the different thickness of positioning ring (5), and friction top (8), the correct engagement position of adjustment displacement spiral bevel gear (6 or 19) when roll change.
2, the screw-down of roll is this composition:
A. each eccentric bushing (3) supporting of upper and lower driving shaft (17,7) by three band displacement worm gears, and be contained in respectively by Third Mate's bearing (4) in the endoporus of three eccentric bushings (3), be contained in respectively again in the parallel up and down endoporus of the square box that left box body (1) and right case (15) constitute.It is the offset of a that the endoporus of eccentric bushing (3) has eccentric throw with outer garden axis, displacement worm gear on three eccentric bushings (3) on every axle, be meshed with an active worm screw (10) and the moving worm screw (12) of two velamens respectively, worm screw is contained in the square box by bearing (11); The plane of the axis of worm screw and four roll axis formations is perpendicular.Initiatively the axle head that goes out of worm screw (10) and passive worm screw (12) is adorned a duplex chain wheel (13) respectively, is together in series mutually with two single strand chains (14) between them, and the pitch of three sprocket wheels is identical with the number of teeth.When the number of worm screw (10,12) of design is Z
1, the number of teeth of worm gear (3) is Z
2The time, the speed reducing ratio i=Z of worm and wheel
2/ Z
1, the also synchronous equidirectional rotation of passive worm screw (12) when active worm screw (10) is rotated.When angle γ of worm screw (10,12) rotation, eccentric bushing (3) will rotate the β angle, β=γ/i=Z
1γ/Z
2, when we are transferred to 0 ° when calculating with the eccentric position of eccentric bushing, calculating accurately when β=0 °～90 ° is △ a=aCOS β=9COS (Z
1γ/Z
2), we adopt the method for simplifying approximate calculation to determine that worm screw whenever rotates a circle, the numerical value of the drafts △ a of roll usually:
Setting a is the offset of eccentric bushing (3); Z
1For number of threads equals 1, Z
2The number of teeth for displacement worm gear (3).i=Z
2／Z
1=Z
2
When beginning to calculate from maximum or minimum eccentric position, displacement worm gear (3) rotates a circle, and the total displacement amount of eccentric bushing (3) axis is 2a, eccentric bushing rotation 1/i week=1/Z when worm screw rotates a circle
2Week, the axis shift △ a ≈ 2a/Z of eccentric bushing this moment (3)
2If, angle γ of worm screw (10,12) rotation
△ a ≈ 2a/Z then
2* γ/360 ≈ 2a γ/360Z
2, γ is the angle number, the composition of the screw-down of horizontal roller (2) and the calculating of drafts about driving shaft reached about Here it is.
B. the composition of the screw-down of left and right sides edger roll axle (9,18) and left and right sides edger roll (16) is formed similar to the screw-down of up-down rollers basically:
Left and right sides edger roll axle (9,19) is to be contained in respectively in the endoporus of eccentric bushing (3) of two band displacement worm gears by two pairs of bearings (4), and is contained in respectively in two endoporus of square box; The axis of these two endoporus is parallel to each other, but the axis of this two axial lines and driving shaft (7,17) up and down is vertical mutually in same plane.Initiatively worm screw (10) and a velamen move worm screw (12) and are meshed displacement worm gear on two eccentric bushings (3) on every axle with one respectively; Bearing (11) is housed on the worm screw, and is contained in the endoporus of square box, the plane of the axis of this endoporus and four roll axis formations is perpendicular.Initiatively worm screw (10) is respectively adorned a duplex chain wheel (13) with the axle head that goes out of passive worm screw (12).And with single strand chain (14) with they the series connection, like this, an as long as active of rotation worm screw (10), the also synchronous thereupon equidirectional rotation of passive worm screw (12), and then reach the also synchronous equidirectional rotation of two eccentric bushings (3) on the axle, and the variation △ a that utilizes the offset a of eccentric bushing (3) realizes depressing and promoting of roll, and is identical as for the computational methods of △ a in the screw-down of the computational methods of drafts △ a and horizontal roller up and down.
If 3 requirements horizontal roller are up and down depressed synchronously, as long as the duplex chain wheel (13) on their the active worm screw (10) is together in series them with 1 single strand chain (14), and add protective cover (initiatively the duplex chain wheel (13) on the worm screw (10) just had more the position of a dress chain originally).This moment, as long as we were the shaft spanner position of any active worm screw (10) about the rotation in the screw-down, 6 worm screws (10,12) are with synchronous equidirectional rotation up and down, and drive also rotation synchronously of 6 eccentric bushings (3) up and down, thereby the purpose that horizontal roller is depressed synchronously about reaching.
If 4 require left and right sides edger roll to depress synchronously, also can be by such scheme, with the room in the duplex chain wheel (13) on the active worm screw (10) of the independent screw-down of left and right sides edger roll, with single strand chain (14) they are together in series, also can reach any active worm screw (10) of rotation, 4 purposes that worm screw will be rotated synchronously, and then also rotation synchronously of 4 eccentric bushings (3), such structure just can reach the purpose that left and right sides edger roll is depressed synchronously.
5, the synchronous screw-down of horizontal roller and four rolls of left and right sides edger roll is to form so up and down; It is with on the independent screw-down of four rolls (20,21) altogether 4 initiatively their 10 duplex chain wheels (13) of going out on the axle head of worm screw (10) and the moving worm screw (12) of 6 velamens with some single strand chains (14) they all are together in series, and keep one or two initiatively worm screw (10) go out axle head spanner position as adjustment drafts usefulness.When any worm screw (10) initiatively of rotation, 10 worm screws are with synchronous equidirectional rotation, and then reach purpose and 4 purposes that roll is depressed synchronously or promoted that 10 eccentric bushings (3) rotate synchronously.Certainly, sprocket wheel and chain will protect the erosion of avoiding dust and cooling water with protective cover.
6, when we with the low-power case of or some small machines and reductor combination drive worm screw (13) initiatively go out axle head the time just can reach electronic and depress or the purpose of automatic remote control screw-down.
7, the roll pass and the rolling feature of four rollers (cross) H section bar finishing mill:
(1) four rolls of the finished frame of four rollers (cross) the H section bar mm finishing mill unit of multimachine frame tandem rolling constitute the pass of H type.
(2) four roll pass of finished product forebay is shaped as
Shape is seen shown in Figure 4.
(3) pass in preceding road is that each partly thickens again
Shape.
(4) selection of roller diameter: the outside dimension at four rolls of same frame should equate, its objective is keep as far as possible H shape or
Shape rolled piece each metal flow speed partly in rolling is close, i.e. each flow rate of metal difference minimum partly, its effect are the precision height of the H type finished product that shuts out, and dimensionally stable, the uneven wear of roll are also minimum.
(5) parameter of each frame is to dispose by continuous rolling relationship (principle that metal mass flow equates between each frame) during multimachine frame tandem rolling.
According to four roller cross H section bar finishing mill and the tandem rolling units thereof that technique scheme is designed, its result of use is compared with old-fashioned four-roll universal rolling machine, has following characteristics.
Handling characteristics of the present invention is: 1. since four roll axis in same plane, compound plate in the same section of H type rolled piece all is compressed and initiatively extension forward by the active of roll with the metal that the edge of a wing, the left and right sides contacts with four rolls, and each part metal flow all is initiatively; Therefore outside metal deformation is very even in the edge of a wing, and its result causes the size on the rolling middle edge of a wing highly stable, and then has guaranteed that the precision of rolling accuracy and product is very high.2. owing to four complete active rotation of roll, outside metal flow speed difference is less in the edge of a wing, and the wearing and tearing of roll are also just smaller, and the life-span, pass size restoration ratio was easier to than higher, and, for rolling difficult deformable metal H section bar has been created condition.3. during the H section bar of rolling same size, four high finishing mill of the present invention than old-fashioned four can milling trains volume little, in light weight, the rigidity height, it is little, compact especially to form between tandem rolling unit frame on opportunity distance.4. because the screw-down of roll has various ways, and can electronic and automatic remote control screw-down, this creates conditions for automatic control of each passage workpiece measurement of H section bar of tandem rolling unit.
The present invention implements like this; Selected the specification limit of the H section bar of wanting rolling when us, also just determined the finished product appearance and size of H section bar, we select HK100 (a, b, c) in the wide width wing edge H shaped steel referring to the specification appendix according to standard GB 11263-89, finished product standard size with HK100a is an example, the pass figure of twice sees Fig. 5 before the pass figure in determined finished product hole and the finished product, according to size shown in Figure 5, the width that we select top and bottom rolls is 140mm, and the width of left and right sides edger roll is 120mm.Four the outer garden of roll maximum gauges are φ 600mm.The determining of roller diameter carries out the selection interval that designing and calculating goes out the roller diameter size according to integrally-built intensity and rigidity and each major part " equal strength " principle, the roller diameter interval that the designer calculates is φ 500mm to φ 600mm, for safe and reliable, choose limit.After roller diameter was determined, the appearance and size of square box also was defined as long 1500mm substantially, wide 1500mm, and the thickness after left and right sides casing merges is 500mm, referring to Fig. 2, the structure and the size of other each part design one by one by technical scheme.The eccentric throw a=6mm of eccentric bushing (3) wherein, the radially maximum adjustment amount of screw-down is 2a=2 * 6=12mm, also can think roller diameter D
oMaximum variable quantity be D
o± 12mm=φ 600 ± 12mm.The modulus m=2.5 of the displacement worm gear on the outer garden of eccentric bushing (3), tooth number Z
2=124, number of threads Z
1=1.Therefore, when worm screw rotates a circle, the drafts of screw-down is △ a ≈ aZ
1/ Z
2≈ 12/124 ≈ 0.097mm.Roller directly changes when roll change, or the axial location of the roll maximum that changes is 2a=12mm, the position of engagement of displacement spiral bevel gear this moment (6 or 19) needs to change, utilize the positioning amount of positioning ring (5) to amount to 12 grades of sizes from 0 to 12mm, displacement spiral bevel gear (6 or 19) is axially transposed, make them reach the best position of engagement.
In addition, after designing, adjustable four rollers of two transmission power shafts (cross) H of single chassis section bar finishing mill also needs to mix the mill-separator (Fig. 4-1) that adapts, frame hold-down mechanism (Fig. 4-3) Hooks coupling universal coupling (Fig. 4-4) for it; Gear distribution box (Fig. 4-5); Shaft coupling (Fig. 4-6) and motor (Fig. 4-7), and these parts all should have the intensity that adapts, rigidity and bear the required roll torque of rolling H section bar, these all are mature technique, just sketch implementation process.
After the transmission system of single chassis prepared, the pass that also needs to design three frames of mm finishing mill unit was seen shown in Figure 5, distributes three frames deformation of rolled wire amount separately, and again according to the tandem rolling principle, basic mill speed and other power of three frames of design can parameters.Afterwards, with compactly they are concatenated into the mm finishing mill unit of H section bar under the situation of three frames by rolling mill practice requirement and appearance and size permission as far as possible, see shown in Figure 4.
More than being exactly this inventive embodiment, not showing in detail in the explanation, all is ripe prior aries.
CNS GB11263-89
Table 1 wide width wing edge H shaped steel
| Code name | Sectional dimension | Area of section | Theoretical weight | Characterisitic parameter | |||||||||
| ????X-X | ????Y-Y | ||||||||||||
| ????H | ????B | ????l 1 | ?l 2 | ????r | ????cm 2 | ????kg/m | ????I X????cm 1 | ???WX ???cm 2 | ????i X????cm | ???I Y???cm 1 | ???W Y???cm 2 | ?i Y? ?cm | |
| ????HK100a ????b | ????96 ????100 ????120 | ????100 ????100 ????106 | ????5.0 ????6.0 ????12.0 | ?8.0 ?10.0 ?20.0 | ????12 ????12 ????12 | ????21.2 ????26.0 ????53.2 | ????16.7 ????20.4 ????41.8 | ????349 ????449 ????1142 | ????72 ????89 ????190 | ????4.1 ????4.2 ????4.6 | ????133 ????167 ????399 | ????26 ????33 ????75 | ?2.51 ?2.53 ?2.74 |
Table 4 wide width wing edge H shaped steel
Claims (3)
1, adjustable four rollers of two transmission power shafts (cross) H section bar finishing mill comprises mechanism etc. under casing, roller system, four roller synchronous rotating mechanisms, four roll-ins, it is characterized in that:
A. to be mutually 90 ° roller system or roll (2,16) in same plane be to utilize the engagements of the two pairs of displacement spiral bevel gears (6,19) that axially can transpose by positioning ring (5) as the synchronous incorgruous rotating mechanism of four rollers for four axis; Wherein positioning ring (5) is one group of normal engaged needs according to displacement spiral bevel gear (6,19), and changes the gasket ring group of its thickness;
B. can realize on production line that the synchronous screw-down that four rollers are depressed synchronously or promoted is characterised in that: last or following driving shaft (7 or 17) and bearing (4) are in three endoporus offset a, and outer garden has in the eccentric bushing (3) of displacement worm gear; Left or right edger roll axle (9 or 18) and bearing (4) are in two endoporus offset a, and outer garden has in the eccentric bushing (3) of displacement worm gear, and 10 eccentric bushings (3) are in being mutually in 90 ° the endoporus of square box that left box body (1) and right case (15) form; And respectively be in frame in active worm screw (10) or the position that is meshed of passive worm screw (12); The axle head that goes out of 10 actives or passive worm screw (10 or 12) is equipped with the duplex chain wheel (13) that is together in series with chain (14); Wherein drive sprocket can be that hand is moved; Also can be electronic or automatic remote control.
2, according to the b among the claim l, the synchronous screw-down of four rollers, can according to the rolling characteristics of H section bar and adjust needs make up and down two rollers and about two rollers, depress synchronously respectively, it is characterized in that: up and down two of two rollers initiatively worm screws (10) axle head that goes out that goes out axle head and the moving worm screw (12) of four velamens the duplex chain wheel (13) that is together in series with chain (14) is housed; Two active worm screws (10) that left and right two rollers are go out axle head and the moving worm screw (12) of two velamens is equipped with the duplex chain wheel (13) that is together in series with chain (14).
3, the tandem rolling unit of forming by many two adjustable four rollers of transmission power shaft (cross) H section bar finishing mills, it is characterized in that: the pass that four rollers of finished frame constitute is by the required H type of product, and four passes that roller constituted of each frame are each partly progressive additives before the finished product
Type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99108768 CN1280888A (en) | 1999-07-18 | 1999-07-18 | 4-roller (cross) finishing mill with adjustable dual-driven input axles for H-shaped section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99108768 CN1280888A (en) | 1999-07-18 | 1999-07-18 | 4-roller (cross) finishing mill with adjustable dual-driven input axles for H-shaped section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1280888A true CN1280888A (en) | 2001-01-24 |
Family
ID=5273498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99108768 Pending CN1280888A (en) | 1999-07-18 | 1999-07-18 | 4-roller (cross) finishing mill with adjustable dual-driven input axles for H-shaped section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1280888A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100457303C (en) * | 2005-12-19 | 2009-02-04 | 洛阳华强铁路器材有限公司 | Horizontal rolling apparatus and process for rolling periodic profile steel in a four-roll mill |
| WO2009135363A1 (en) * | 2008-05-09 | 2009-11-12 | Zhang Shaoyuan | Double drive universal rolling mill and universal tandem mill set |
| CN102125933A (en) * | 2010-12-24 | 2011-07-20 | 莱芜钢铁股份有限公司 | Universal mill type |
| CN102284492A (en) * | 2011-08-15 | 2011-12-21 | 郎佃富 | Hot rolling H-beam steel finishing roll opening and hot pressing H-beam steel processing technology |
| CN102303047A (en) * | 2011-06-21 | 2012-01-04 | 鞍山洪川特种钢管有限公司 | Four-roller universal mill |
| CN102513362A (en) * | 2011-12-12 | 2012-06-27 | 莱芜钢铁集团有限公司 | UE hole type for hot rolling J-shaped portal channel steel |
| CN107900626A (en) * | 2017-12-18 | 2018-04-13 | 山东黄金矿业(沂南)有限公司 | A kind of mining supports product moulding equipment |
| CN112974517A (en) * | 2019-12-17 | 2021-06-18 | 兴化市兆驰机械科技有限公司 | Processing method of high-precision H-shaped steel |
| CN114054924A (en) * | 2021-12-17 | 2022-02-18 | 四川攀钢嘉德精工科技有限公司 | Welding process for Q-shaped auxiliary frame longitudinal beam for heavy-duty automobile |
| CN117282846A (en) * | 2023-10-09 | 2023-12-26 | 江苏迈奇重工机械有限公司 | Fastener hot briquetting equipment |
-
1999
- 1999-07-18 CN CN 99108768 patent/CN1280888A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100457303C (en) * | 2005-12-19 | 2009-02-04 | 洛阳华强铁路器材有限公司 | Horizontal rolling apparatus and process for rolling periodic profile steel in a four-roll mill |
| WO2009135363A1 (en) * | 2008-05-09 | 2009-11-12 | Zhang Shaoyuan | Double drive universal rolling mill and universal tandem mill set |
| CN102125933A (en) * | 2010-12-24 | 2011-07-20 | 莱芜钢铁股份有限公司 | Universal mill type |
| CN102303047A (en) * | 2011-06-21 | 2012-01-04 | 鞍山洪川特种钢管有限公司 | Four-roller universal mill |
| CN102284492A (en) * | 2011-08-15 | 2011-12-21 | 郎佃富 | Hot rolling H-beam steel finishing roll opening and hot pressing H-beam steel processing technology |
| CN102513362A (en) * | 2011-12-12 | 2012-06-27 | 莱芜钢铁集团有限公司 | UE hole type for hot rolling J-shaped portal channel steel |
| CN107900626A (en) * | 2017-12-18 | 2018-04-13 | 山东黄金矿业(沂南)有限公司 | A kind of mining supports product moulding equipment |
| CN112974517A (en) * | 2019-12-17 | 2021-06-18 | 兴化市兆驰机械科技有限公司 | Processing method of high-precision H-shaped steel |
| CN114054924A (en) * | 2021-12-17 | 2022-02-18 | 四川攀钢嘉德精工科技有限公司 | Welding process for Q-shaped auxiliary frame longitudinal beam for heavy-duty automobile |
| CN117282846A (en) * | 2023-10-09 | 2023-12-26 | 江苏迈奇重工机械有限公司 | Fastener hot briquetting equipment |
| CN117282846B (en) * | 2023-10-09 | 2024-05-10 | 江苏迈奇重工机械有限公司 | Fastener hot briquetting equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1280888A (en) | 4-roller (cross) finishing mill with adjustable dual-driven input axles for H-shaped section | |
| CN1261243C (en) | Rolling method for plate mill and rolling equipment for plate | |
| US5144827A (en) | Rolling mill stand | |
| US5829294A (en) | Split-level roll former | |
| CN101574705B (en) | Two transmission shaft and four roller cross adjustable universal rolling mill and universal continuous rolling mill set formed by same | |
| EP3393689B1 (en) | Cold-pilger rolling mill | |
| AU720605B2 (en) | Roll forming apparatus and method | |
| CN210848145U (en) | Bolt thread rolling mechanism | |
| DE102007041992B4 (en) | Device for the oblique rolling of tubular or rod-shaped rolling stock | |
| CN1270085A (en) | Adjustable 4-roller cross rolling mill with single (or dual) ihnput drive axlecs) | |
| CN213968400U (en) | Straightening machine | |
| CN1151917A (en) | Gear rolling process | |
| CN1270086A (en) | Adjustable three-roller (120-deg Y-type) rolling mill with single input drive axle | |
| CN1312138A (en) | Rolling mill and rolling-mill group | |
| CN101227986B (en) | Roller actuating device for machines used for processing metal products | |
| CN2306087Y (en) | Formed steel straightener | |
| CN2806418Y (en) | Combined roller | |
| DE2526229A1 (en) | DEVICE FOR ADJUSTING THE WORKPIECE FEED FOR MACHINING MACHINES | |
| JPS61159217A (en) | High speed wire drawing equipment of wire rod | |
| US4182149A (en) | Roll stand | |
| CN2832521Y (en) | Left and right header phase adjusting mechanism of roll paper cycle folding machine | |
| US4408476A (en) | Rolling lines | |
| EP0261658A1 (en) | Parquet-sanding machine | |
| CN217665682U (en) | Indent equipment | |
| RU2169045C1 (en) | Sectioned two-roll cereal grinding machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |