CN106270315A - Three method for rolling and shaping of train wheel - Google Patents

Three method for rolling and shaping of train wheel Download PDF

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Publication number
CN106270315A
CN106270315A CN201610920978.9A CN201610920978A CN106270315A CN 106270315 A CN106270315 A CN 106270315A CN 201610920978 A CN201610920978 A CN 201610920978A CN 106270315 A CN106270315 A CN 106270315A
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CN
China
Prior art keywords
wheel
blank
rolling
shaping
punching
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
Application number
CN201610920978.9A
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Chinese (zh)
Inventor
庞晋龙
李翔
肖峰
鲁松
王健
邓荣杰
高峰
付应龙
毕军华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ma''anshan Iron And Steel Ltd By Share Ltd
Maanshan Iron and Steel Co Ltd
Original Assignee
Ma''anshan Iron And Steel Ltd By Share Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ma''anshan Iron And Steel Ltd By Share Ltd filed Critical Ma''anshan Iron And Steel Ltd By Share Ltd
Priority to CN201610920978.9A priority Critical patent/CN106270315A/en
Publication of CN106270315A publication Critical patent/CN106270315A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21HMAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00Making articles shaped as bodies of revolution
    • B21H1/02Making articles shaped as bodies of revolution discs; disc wheels

Abstract

The invention discloses a kind of three method for rolling and shaping of train wheel, belong to wheel shape Forging hot forming techniques field.The step of the present invention is: step one: the cutting of blank and heating;Step 2: high-pressure water descaling: put in descaling mill by the blank heated, utilizes water under high pressure to remove the iron scale of blank surface;Step 3: upset, punching: complete upset, punching work step on forcing press, this operation to control the external diameter of upset base, forcing press drafts and punching aperture;Step 4: three rolling and shapings: this operation is divided into two steps: two-sided roll milling, symmetry rolling;The present invention can simplify wheel design technique, reduces unit quantity, reduces press tonnage, and solves wheel eccentricity issues during rolling and shaping well.

Description

Three method for rolling and shaping of train wheel
Technical field
The present invention relates to take turns shape Forging hot forming techniques field, more particularly, it relates to three rolling and shaping sides of train wheel Method.
Background technology
Train wheel, as ground-engaging element, plays a part to carry in train running, draws, guides, brakes, to train Safety and stationarity have critical impact.Along with the quality of wheel is proposed higher by high speed, the heavy loading of train Requirement, and reasonably wheel heat forming technology is to ensure that the basis of wheel inherent quality and shape and size precision, therefore, deeply The development to promoting China's track traffic cause of the production technology of research wheel is significant.
Casting wheel and rolled steel wheel were once contrasted Journal of Sex Research and experiment by numerous rolling stock units, and result shows: The performance of rolled steel wheel is better than cast steel wheel, and especially in terms of fracture toughness, rolled steel wheel can provide safety to greatest extent Property.
The manufacture method of overall rolled steel wheel mainly has the most in the world: full die-forging forming and Simulation Based On Multi-step pressure rolling shape two kinds Method.
Full die forging is by after upset for blank base, by direct for whole wheel die-forging forming in forging die, it is not necessary to rolling work Sequence.This technique has plurality of advantages, such as: forming quality is good, stock utilization is high, good mechanical property, wheel rim and web area Tissue there is higher homogeneity, the fineness of grain and density, but this manufacturing process need to use powerful forging equipment, and The low inferior reason of production efficiency, and be not widely used.
What the most each wheel maker was commonly used is Simulation Based On Multi-step pressure rolling forming process, and its forming process mainly includes preform And shape, roll expanding and press-bending punching three process, production need to use 2~3 forcing presses, 1 Special vehicle wheel multi-roll mill. The wheel that this pressure rolling shapes, metal has relatively large plastometric set, can obtain high inherent quality, comes relative to full die forging simultaneously Saying, this pressure rolling forming process needs through preform and two operation distribution deflections of rolling, it is possible to reduces and wants forging equipment Ask.But Simulation Based On Multi-step pressure rolling manufacturing process there is also following problem: one, operation is various, and productivity ratio is relatively low;Two, major diameter is being produced During wheel, often meet the situations such as press tonnage is inadequate;Three, number of devices is many, investment is big;Four, different size wheel is produced Time, number of molds need to be changed numerous, take time and effort;Five, often meet wheel and shape eccentricity issues.
Summary of the invention
1, problem to be solved
The problem existed for prior art and deficiency, the invention provides a kind of three method for rolling and shaping of train wheel, The method ensure metal flow uniformly, that dense materials degree is high, surface quality is good, good mechanical property, dimensional accuracy are high etc. is many On the basis of advantage, wheel design technique can be simplified, reduce unit quantity, reduce press tonnage, and solve well Wheel eccentricity issues during rolling and shaping.
2, technical scheme
For reaching above-mentioned purpose, the technical scheme that the present invention provides is
Three method for rolling and shaping of a kind of train wheel of the present invention, the steps include:
Step one: the cutting of blank and heating:
Reserved allowance by train wheel finished product, obtain wheel base shape, according to the weight of wheel blank, add rushing of wheel bore Hole rushes the scaling loss of block and blank heating, draws wheel cutting stock weight, then uses disk cold saw to carry out steel ingot or continuous casting billet Cutting, thus obtains blank, then places it in heating furnace and heats;
Step 2: high-pressure water descaling:
The blank heated is put in descaling mill, utilizes water under high pressure to remove the iron scale of blank surface;
Step 3: upset, punching:
Completing upset, punching work step on forcing press, this operation to control the external diameter of upset base, forcing press drafts and punching Aperture, hole, in order to during two-sided roll milling, metal reasonable distribution, two-way flow;
Step 4: three rolling and shapings:
Blank with holes putting mandrel, two side guards, puts into three elongators, carry out rolling and shaping, this operation is divided into Two steps: two-sided roll milling, symmetry rolling;
Two-sided roll milling: blank center with holes is fixed by mandrel, around main axis;Two pairs of rams are arranged symmetrically in base with holes Material both sides, on the one hand rotate around respective axis of symmetry, and drive workpiece to rotate around mandrel;Press under Yi Fangmian, so that blank occurs even Continuous local plastic deformation, by controlling two to the rotating speed of ram, the amount of feeding, makes blank metal reasonable distribution, uniformly flows to two Side, forms the wheel hub of wheel, wheel rim position, and after two-sided roll milling, wheel hub position is formed completely;
Symmetry rolling: utilize both sides home roll that blank after spreading carries out symmetry rolling, both sides home roll simultaneously, synchronized feeding, Make the metal flow at wheel rim position so that wheel rim to fill type intact.
As a further improvement on the present invention, in described step one, the burn out rate of blank heating is by 3.5% calculating.
As a further improvement on the present invention, in described step one, blank heating is to 1250 DEG C.
3, beneficial effect
Compared to prior art, the invention have the benefit that
Three method for rolling and shaping of a kind of train wheel of the present invention, wheel produces required particular manufacturing craft to be reduced, and saves and produces Cost;When producing different size wheel, change number of molds and reduce, time saving and energy saving, improve production efficiency, and solve well Wheel eccentricity issues during rolling and shaping.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the present invention;
Fig. 2 is the structural representation in the present invention after two-sided roll milling deformation;
Fig. 3 is the structural representation in the present invention after symmetry rolling deformation.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, the present invention is further described below:
Embodiment 1
As Figure 1-3, three method for rolling and shaping of a kind of train wheel of the present embodiment, the steps include:
Step one: the cutting of blank and heating:
Reserved allowance by train wheel finished product, obtain wheel base shape, according to the weight of wheel blank, add rushing of wheel bore Hole rushes the scaling loss of block and blank heating, and burn out rate, by 3.5% calculating, draws wheel cutting stock weight, then uses disk cold saw Steel ingot or continuous casting billet are cut, thus obtains blank, then place it in heating furnace and be heated to 1250 DEG C;
Step 2: high-pressure water descaling:
The blank heated is put in descaling mill, utilizes water under high pressure to remove the iron scale of blank surface, prevent from rolling over During pressure, iron scale press-in inside wheel causes defect;
Step 3: upset, punching:
Completing upset, punching work step on forcing press, this operation to control the external diameter of upset base, forcing press drafts and punching Aperture, hole, in order to during two-sided roll milling, metal reasonable distribution, two-way flow;
Step 4: three rolling and shapings:
Blank with holes putting mandrel, two side guards, puts into three elongators, carry out rolling and shaping, this operation is divided into Two steps: two-sided roll milling, symmetry rolling;
Two-sided roll milling: blank center with holes is fixed by mandrel, around main axis;Two pairs of rams are arranged symmetrically in base with holes Material both sides, on the one hand rotate around respective axis of symmetry, and drive workpiece to rotate around mandrel;Press under Yi Fangmian, so that blank occurs even Continuous local plastic deformation, by conservative control two to the rotating speed of ram, the amount of feeding, makes blank metal reasonable distribution, equal uniform flow To both sides, form the wheel hub of wheel, wheel rim position, and use symmetrical roll milling craft workpiece can be prevented well in spreading Journey tilts, the situation such as twisting and cause forming defects, after two-sided roll milling, wheel hub position is formed completely;
Symmetry rolling: after two-sided roll milling, wheel rim position fails complete molding, hence with both sides home roll to spreading after Blank carries out symmetry rolling, both sides home roll simultaneously, synchronized feeding, make the metal flow at wheel rim position so that wheel rim to fill type intact, And symmetry rolling technique can efficiently solve wheel eccentricity issues in the fabrication process.
Three method for rolling and shaping of a kind of train wheel of the present embodiment, wheel produces required particular manufacturing craft to be reduced, and saves raw Produce cost;When producing different size wheel, change number of molds and reduce, time saving and energy saving, improve production efficiency, and solve well Determine wheel eccentricity issues during rolling and shaping.
Schematically being described the present invention and embodiment thereof above, this description does not has restricted, institute in accompanying drawing Show is also one of embodiments of the present invention, and actual structure is not limited thereto.So, if the common skill of this area Art personnel enlightened by it, in the case of without departing from the invention objective, designs and this technical scheme without creative Similar frame mode and embodiment, all should belong to protection scope of the present invention.

Claims (3)

1. three method for rolling and shaping of train wheel, it is characterised in that: the steps include:
Step one: the cutting of blank and heating:
Reserved allowance by train wheel finished product, obtain wheel base shape, according to the weight of wheel blank, add the punched hole punching of wheel bore Block and the scaling loss of blank heating, draw wheel cutting stock weight, then uses disk cold saw to cut steel ingot or continuous casting billet, Thus obtain blank, then place it in heating furnace and heat;
Step 2: high-pressure water descaling:
The blank heated is put in descaling mill, utilizes water under high pressure to remove the iron scale of blank surface;
Step 3: upset, punching:
Completing upset, punching work step on forcing press, this operation to control the external diameter of upset base, forcing press drafts and punching hole Footpath, in order to during two-sided roll milling, metal reasonable distribution, two-way flow;
Step 4: three rolling and shapings:
Blank with holes putting mandrel, two side guards, puts into three elongators, carry out rolling and shaping, this operation is divided into two steps: Two-sided roll milling, symmetry rolling;
Two-sided roll milling: blank center with holes is fixed by mandrel, around main axis;Two pairs of rams are arranged symmetrically in blank two with holes Side, on the one hand rotates around respective axis of symmetry, and drives workpiece to rotate around mandrel;Press under Yi Fangmian, so that blank occurs continuous office Portion's plastic deformation, by controlling two to the rotating speed of ram, the amount of feeding, makes blank metal reasonable distribution, uniformly flows to both sides, shape Becoming the wheel hub of wheel, wheel rim position, after two-sided roll milling, wheel hub position is formed completely;
Symmetry rolling: utilize both sides home roll that blank after spreading carries out symmetry rolling, both sides home roll simultaneously, synchronized feeding, make wheel The metal flow at rim position so that wheel rim to fill type intact.
Three method for rolling and shaping of train wheel the most according to claim 1, it is characterised in that: blank in described step one The burn out rate of heating is by 3.5% calculating.
Three method for rolling and shaping of train wheel the most according to claim 1 and 2, it is characterised in that: in described step one Blank heating is to 1250 DEG C.
CN201610920978.9A 2016-10-21 2016-10-21 Three method for rolling and shaping of train wheel Pending CN106270315A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610920978.9A CN106270315A (en) 2016-10-21 2016-10-21 Three method for rolling and shaping of train wheel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610920978.9A CN106270315A (en) 2016-10-21 2016-10-21 Three method for rolling and shaping of train wheel

Publications (1)

Publication Number Publication Date
CN106270315A true CN106270315A (en) 2017-01-04

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4111155C1 (en) * 1991-04-06 1992-07-16 Wf-Maschinenbau Und Blechformtechnik Gmbh & Co Kg, 4415 Sendenhorst, De Upsetting roller with peripheral upsetting groove - has radially protruding, limiting bead also protruding beyond outer end of upsetting face
CN1119971A (en) * 1994-05-07 1996-04-10 谢钦河 Manufacture method of integral moulded splined hub
CN101185952A (en) * 2007-11-05 2008-05-28 机械科学研究总院先进制造技术研究中心 Two-sided roll milling forming method and two-sided roll milling forming equipment
CN102601279A (en) * 2012-03-27 2012-07-25 四川新筑精坯锻造有限公司 Train wheel blank manufacturing process by adopting swing rolling and forming technology
CN102688962A (en) * 2012-05-08 2012-09-26 浙江天马轴承股份有限公司 Symmetric rolling forming method of large inner-step ring parts
CN103659199A (en) * 2013-12-30 2014-03-26 太原重工轨道交通设备有限公司 Method for achieving forging rolling thermal forming of wheel with deep-basin type spoke plate structure
CN104368735A (en) * 2014-11-25 2015-02-25 张家港海陆环形锻件有限公司 Tool used for forging blank of heavy mining truck wheel hub
CN104625636A (en) * 2014-12-30 2015-05-20 太原科技大学 Train wheel casting-forging composite forming method
CN104625624A (en) * 2014-12-17 2015-05-20 马钢(集团)控股有限公司 Manufacturing method and device for double-rim walking wheel

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4111155C1 (en) * 1991-04-06 1992-07-16 Wf-Maschinenbau Und Blechformtechnik Gmbh & Co Kg, 4415 Sendenhorst, De Upsetting roller with peripheral upsetting groove - has radially protruding, limiting bead also protruding beyond outer end of upsetting face
CN1119971A (en) * 1994-05-07 1996-04-10 谢钦河 Manufacture method of integral moulded splined hub
CN101185952A (en) * 2007-11-05 2008-05-28 机械科学研究总院先进制造技术研究中心 Two-sided roll milling forming method and two-sided roll milling forming equipment
CN102601279A (en) * 2012-03-27 2012-07-25 四川新筑精坯锻造有限公司 Train wheel blank manufacturing process by adopting swing rolling and forming technology
CN102688962A (en) * 2012-05-08 2012-09-26 浙江天马轴承股份有限公司 Symmetric rolling forming method of large inner-step ring parts
CN103659199A (en) * 2013-12-30 2014-03-26 太原重工轨道交通设备有限公司 Method for achieving forging rolling thermal forming of wheel with deep-basin type spoke plate structure
CN104368735A (en) * 2014-11-25 2015-02-25 张家港海陆环形锻件有限公司 Tool used for forging blank of heavy mining truck wheel hub
CN104625624A (en) * 2014-12-17 2015-05-20 马钢(集团)控股有限公司 Manufacturing method and device for double-rim walking wheel
CN104625636A (en) * 2014-12-30 2015-05-20 太原科技大学 Train wheel casting-forging composite forming method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
李庆华等: "盘件辗轧成形技术研究进展", 《精密成形工程》 *

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