CN105269270B - Production process for disc cutter ring of tunnel boring machine (TBM) - Google Patents

Production process for disc cutter ring of tunnel boring machine (TBM) Download PDF

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Publication number
CN105269270B
CN105269270B CN201510846235.7A CN201510846235A CN105269270B CN 105269270 B CN105269270 B CN 105269270B CN 201510846235 A CN201510846235 A CN 201510846235A CN 105269270 B CN105269270 B CN 105269270B
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CN
China
Prior art keywords
finished
semi
mechanical hand
mould
annular blank
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CN201510846235.7A
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Chinese (zh)
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CN105269270A (en
Inventor
张凌
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吉林省维尔特隧道装备有限公司
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Priority to CN201510846235.7A priority Critical patent/CN105269270B/en
Publication of CN105269270A publication Critical patent/CN105269270A/en
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Publication of CN105269270B publication Critical patent/CN105269270B/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10Making by using boring or cutting machines
    • E21D9/1006Making by using boring or cutting machines with rotary cutting tools

Abstract

The invention discloses a production process for a disc cutter ring of a tunnel boring machine (TBM) and belongs to the technical field of machining. The technical problems that raw materials are wasted, the cost is high, the environment is polluted and the work efficiency is low in the prior art are solved. The production process comprises the following steps that raw materials are subjected to cutting and blanking, high-temperature heating, die forging forming, trimming processing, annealing processing, quenched-tempered heat treatment and mechanical finishing. According to the production process, a round steel pipe is taken as the raw materials, the raw materials are saved, and the production cost is reduced. A medium-frequency heating furnace is used for heating a workblank material, and low-carbon environmental protection is achieved. The die forging replaces hammer forging, the die forging speed is high, the die forging time is short, the temperature changes are small, generation of microscopic cracks inside the materials is avoided, the performance of the product is improved, and the service life of the product is prolonged. A semi-finished product formed after forging and pressing is trimmed and is formed through one step, labor is saved, and the work efficiency is improved.

Description

A kind of production technology of TBM cutter ring of disc cutter
Technical field
The invention belongs to machining technology field, and in particular to a kind of production technology of TBM cutter ring of disc cutter.
Background technology
TBM (Tunnel Boring Machine) tunneler, is excavated using rotating tool, while broken Country rock tunnel forward in hole, form a kind of new, the advanced tunnel construction machinery of whole tunnel cross-section.TBM tunnel piercings Main cutting tools for cutting on machine knife disk is disk cutter, and the core part of disk cutter is cutter ring.Cutter ring and rock directly contact, rise Act on to fractured rock, therefore the performance of cutter ring directly affects the work efficiency of tunnel piercing.
The material of TBM cutter ring of disc cutter typically adopts the heat that the trade mark is for H13's or alloy composition is proximate to it in the world Make mould steel, the trade mark steel has good toughness, impact resistance, wearability, adaptation that can be good major part tunnel piercing Operating mode.
The structure of TBM cutter ring of disc cutter, is that a kind of section is roomy for one side, and simultaneously narrow, centre is by curved transition It is irregularly shaped, the annulus of composition.
TBM cutter ring of disc cutter material capability and planform and severe working environment, determine which has more The special technological process of production, the raw material used by existing processing technique are solid round steel, and specific processing technique is followed successively by Raw material is carried out cutting stock, charcoal stove heat, freely forge, annealing heat-treats, mechanical roughing, Tempering and Quenching and machinery Polish.There is following technological deficiency in existing processing technique:Waste of material, cost are caused as raw material using solid round steel It is high;Raw material is heated using charcoal stove, cause pollution to environment;It is long freely to forge the time used, inefficiency, temperature Degree change is big, and material internal microfissure is uncontrollable.
The content of the invention
It is an object of the invention to provide a kind of near-net-shape production technology of TBM cutter ring of disc cutter, solves prior art The waste raw material of presence, high cost, pollution environment and ineffective technical problem.
A kind of production technology of TBM cutter ring of disc cutter of the present invention, comprises the steps:
Step one:Forging seamless steel pipe is carried out into blanking by sawing machine, steel pipe is cut into into annular blank, steel pipe is passed through Sawing machine carries out blanking, and steel pipe cut into annular blank, and the internal diameter of annular blank is 315mm, and external diameter is 475mm, and thickness is 85mm;
Step 2:The annular blank in step one is sent on the mould of medium-frequency diathermy furnace by mechanical hand, to annular Blank is heated, and heating-up temperature is to 1150 DEG C -1170 DEG C;
Step 3:The annular blank heated in step 2 is sent on the mould of forcing press by mechanical hand, in ring Shape slab temperature is reduced to 1000 DEG C before, annular blank is carried out continuously using forcing press and is forged and pressed twice, forms semi-finished product;
Step 4:The semi-finished product forged and pressed in step 3 are taken out from the mould of forcing press by mechanical hand, and by its It is placed on the mould of bead cutter, carries out trimming process before semi-finished product temperature is reduced to 900 DEG C;
Step 5:The semi-finished product Jing after trimming is processed are taken out from the mould of bead cutter and are placed on by mechanical hand and moved back Made annealing treatment in stove, annealing time is 150min-180min;
Step 6:The semi-finished product after annealing are taken out from annealing furnace and are delivered on lathe by mechanical hand, half-and-half into The endoporus of product carries out rough turn with end face;
Step 7:The semi-finished product Jing after rough turn from lathe are taken out and are delivered in vacuum heat treatment furnace by mechanical hand Carry out vacuum quenched, carry out 1030 DEG C of -1080 DEG C of Quenching Treatments and 550 DEG C of -650 DEG C of temper successively;
Step 8:The semi-finished product after tempering are taken out from vacuum heat treatment furnace by mechanical hand and be delivered to surface grinding machine On, the end face of the semi-finished product after tempering is refined;
Step 9:The semi-finished product for completing end face fine-grinding are delivered on numerically controlled lathe from surface grinding machine by mechanical hand, Smart car is carried out to the endoporus of semi-finished product;
Step 10:The semi-finished product for completing endoporus smart car are delivered on inner hole grinding machine from numerically controlled lathe by mechanical hand, The endoporus of semi-finished product is refined.
Preferably, annular blank is heated to into 1150 DEG C in step 2.
Preferably, in step 5, annealing time is 180min.
Preferably, the hardening heat in step 7 is 1050 DEG C, and temperature is 570 DEG C.
The Advantageous Effects of the present invention:The processing technique of the present invention includes some steps:Raw material is cut down Material, high-temperature heating, die-forging forming, trimming process, annealing, Tempering and Quenching and machine finishing;The production of the present invention Technique uses round steel pipe as raw material, saves raw material, reduces production cost;Using medium-frequency diathermy furnace to blank material Heated, low-carbon environment-friendly;This technique replaces open die forging using die forging, and die forging speed is fast, the time is short, and temperature change is little, it is to avoid The generation of material internal microfissure, improves properties of product and service life;Trimming is carried out to forming semi-finished product after forging and stamping, one Step completes molding, saves labour force and improves work efficiency.
Description of the drawings
Fig. 1 is a kind of flow chart of the production technology of TBM cutter ring of disc cutter of the invention.
Specific embodiment
Specific embodiment one:
The present invention is further elaborated below in conjunction with the accompanying drawings.
Referring to accompanying drawing 1, a kind of production technology of TBM cutter ring of disc cutter of the invention comprises the steps:
Step one:Forging seamless steel pipe is carried out into blanking by sawing machine, steel pipe is cut into into annular blank, annular blank Internal diameter is 315mm, and external diameter is 475mm, and thickness is 85mm;
Step 2:The annular blank in step one is sent on the mould of medium-frequency diathermy furnace by mechanical hand, to annular Blank is heated, and heating-up temperature is to 1150 DEG C -1170 DEG C;
Step 3:The annular blank heated in step 2 is sent on the mould of forcing press by mechanical hand, in ring Shape slab temperature is reduced to 1000 DEG C before, annular blank is carried out continuously using forcing press and is forged and pressed twice, forms semi-finished product;
Step 4:The semi-finished product forged and pressed in step 3 are taken out from the mould of forcing press by mechanical hand, and by its It is placed on the mould of bead cutter, carries out trimming process before semi-finished product temperature is reduced to 900 DEG C;
Step 5:The semi-finished product Jing after trimming is processed are taken out from the mould of bead cutter and are placed on by mechanical hand and moved back Made annealing treatment in stove, annealing time is 150min-180min;
Step 6:The semi-finished product after annealing are taken out from annealing furnace and are delivered on lathe by mechanical hand, half-and-half into The endoporus of product carries out rough turn with end face;
Step 7:The semi-finished product Jing after rough turn from lathe are taken out and are delivered in vacuum heat treatment furnace by mechanical hand Carry out vacuum quenched, carry out Quenching Treatment and temper successively, the temperature range of Quenching Treatment is 1030 DEG C -1080 DEG C, is returned The temperature range that fire is processed is 550 DEG C -650 DEG C;
Step 8:The semi-finished product after tempering are taken out from vacuum heat treatment furnace by mechanical hand and be delivered to surface grinding machine On, the end face of the semi-finished product after tempering is refined;
Step 9:The semi-finished product for completing end face fine-grinding are delivered on numerically controlled lathe from surface grinding machine by mechanical hand, Smart car is carried out to the endoporus of semi-finished product;
Step 10:The semi-finished product for completing endoporus smart car are delivered on inner hole grinding machine from numerically controlled lathe by mechanical hand, The endoporus of semi-finished product is refined.
Finally, the finished product after fine grinding is taken out from inner hole grinding machine by mechanical hand, and carries out warehouse-in process.
Preferably, annular blank is heated to into 1150 DEG C in step 2.
Preferably, in step 5, annealing time is 180min.
Preferably, the hardening heat in step 7 is 1050 DEG C, and temperature is 570 DEG C.
Specific embodiment two:
A kind of production technology of TBM cutter ring of disc cutter of the present invention, comprises the steps:
Step one:Forging seamless steel pipe is carried out into blanking by blanking sawing machine, steel pipe is cut into into annular blank, annular hair The internal diameter of base is 315mm, and external diameter is 475mm, and thickness is 85mm;
Wherein, blanking sawing machine is metal band type hydraulic pressure sawing machine;
Step 2:The annular blank in step one is sent on the mould of medium-frequency diathermy furnace by mechanical hand, to annular Blank is heated, and heating-up temperature is to 1150 DEG C;
Wherein, medium-frequency diathermy furnace is 500kw Customization Module medium-frequency diathermy furnaces;
Step 3:The annular blank heated in step 2 is sent on the mould of forcing press by mechanical hand, in ring Shape slab temperature is reduced to 1000 DEG C before, annular blank is carried out continuously using forcing press and is forged and pressed twice, forms semi-finished product;
Wherein, forcing press is ten thousand tons of forcing presses, the mould of the mould of forcing press for cutter ring, the annular blank for heating Forging forming is carried out in the mould of forcing press;
Step 4:The semi-finished product forged and pressed in step 3 are taken out from the mould of forcing press by mechanical hand, and by its It is placed on the mould of bead cutter, carries out trimming process before semi-finished product temperature is reduced to 900 DEG C;
Wherein, bead cutter is fluid pressure type low speed step punching edge-cutting machine, because the body of the annular blank cut in step one Cavity volume of the product slightly larger than the mould of forcing press, so meeting during annular blank is forged and pressed in the mould of forcing press Extrusion overlap, the effect of bead cutter is to cut away the overlap of extrusion;
Step 5:The semi-finished product Jing after trimming is processed are taken out from the mould of bead cutter and are placed on by mechanical hand and moved back Made annealing treatment in stove, annealing time is 180min;
Wherein, annealing furnace is car-type temperature insulation annealing furnace;
Step 6:The semi-finished product after annealing are taken out from annealing furnace and are delivered on lathe by mechanical hand, half-and-half into The endoporus of product carries out rough turn with end face;
Step 7:The semi-finished product Jing after rough turn from lathe are taken out and are delivered in vacuum heat treatment furnace by mechanical hand Carry out vacuum quenched, carry out Quenching Treatment and temper successively, the temperature of Quenching Treatment is 1050 DEG C, the temperature of temper For 570 DEG C;
Step 8:The semi-finished product after tempering are taken out from vacuum heat treatment furnace by mechanical hand and be delivered to surface grinding machine On, the end face of the semi-finished product after tempering is refined;
Step 9:The semi-finished product for completing end face fine-grinding are delivered on numerically controlled lathe from surface grinding machine by mechanical hand, Smart car is carried out to the endoporus of semi-finished product;
Step 10:The semi-finished product for completing endoporus smart car are delivered on inner hole grinding machine from numerically controlled lathe by mechanical hand, The endoporus of semi-finished product is refined.
The processing to hobboing cutter cutter ring is completed by above-mentioned steps, hobboing cutter cutter ring internal diameter is 315mm after processing, and external diameter is 475mm, thickness are 85mm.
Specific embodiment three:
The present embodiment is that steel pipe is carried out blanking by blanking sawing machine in step one with the difference of embodiment two, by steel Pipe cuts into annular blank, and the thickness of annular blank is more than the 3mm of cutter ring finished product thickness.
Specific embodiment four:
The present embodiment is that steel pipe is carried out blanking by blanking sawing machine in step one with the difference of embodiment two, by steel Pipe cuts into annular blank, and the thickness of annular blank is more than the 2mm of cutter ring finished product thickness.
Specific embodiment five:
The present embodiment is to pass the annular blank in step one by mechanical hand in step 2 with the difference of embodiment two It is delivered on the mould of medium-frequency diathermy furnace, annular blank is heated, heating-up temperature is to 1170 DEG C.
Specific embodiment six:
The present embodiment is to pass the annular blank in step one by mechanical hand in step 2 with the difference of embodiment two It is delivered on the mould of medium-frequency diathermy furnace, annular blank is heated, heating-up temperature is to 1160 DEG C.
Specific embodiment seven:
The present embodiment with the difference of embodiment two is, in step 5 by mechanical hand by the semi-finished product after trimming from trimming Take out in machine and place and annealed in the lehr, annealing time is 150min.
Specific embodiment eight:
The present embodiment with the difference of embodiment two is, in step 5 by mechanical hand by the semi-finished product after trimming from trimming Take out in machine and place and annealed in the lehr, annealing time is 165min.
Specific embodiment nine:
The present embodiment with implement two difference be, in step 7 by mechanical hand by the semi-finished product Jing after endoporus is rough turn from Vacuum is carried out in taking out and being delivered to vacuum heat treatment furnace on lathe quenched, carry out 1030 DEG C of Quenching Treatments and 550 DEG C times successively Fire is processed.
Specific embodiment ten:
The present embodiment with implement two difference be, in step 7 by mechanical hand by the semi-finished product Jing after endoporus is rough turn from Vacuum is carried out in taking out and being delivered to vacuum heat treatment furnace on lathe quenched, carry out 1080 DEG C of Quenching Treatments and 650 DEG C times successively Fire is processed.

Claims (1)

1. a kind of production technology of TBM cutter ring of disc cutter, it is characterised in that comprise the steps:
Step one:Forging seamless steel pipe is carried out into blanking by sawing machine, steel pipe is cut into into annular blank, steel pipe is passed through into sawing machine Blanking is carried out, steel pipe is cut into into annular blank, the internal diameter of annular blank is 315mm, and external diameter is 475mm, and thickness is 85mm;
Step 2:The annular blank in step one is sent on the mould of medium-frequency diathermy furnace by mechanical hand, to annular blank Heated, heating-up temperature is to 1150 DEG C;
Step 3:The annular blank heated in step 2 is sent on the mould of ten thousand tons of forcing presses by mechanical hand, ten thousand tons Mould of the mould of forcing press for cutter ring, before annular blank temperature is reduced to 1000 DEG C, using ten thousand tons of forcing presses pair Annular blank is carried out continuously and forges and presses twice, forms semi-finished product;
Step 4:The semi-finished product forged and pressed in step 3 are taken out from the mould of ten thousand tons of forcing presses by mechanical hand, and by its It is placed on the mould of fluid pressure type low speed step punching edge-cutting machine, carries out trimming process before semi-finished product temperature is reduced to 900 DEG C;
Step 5:The semi-finished product Jing after trimming is processed are taken out from the mould of bead cutter and are placed on annealing furnace by mechanical hand In made annealing treatment, annealing time is 180min;
Step 6:The semi-finished product after annealing are taken out from annealing furnace and are delivered on lathe by mechanical hand, to semi-finished product Endoporus carries out rough turn with end face;
Step 7:The semi-finished product Jing after rough turn are taken out from lathe and are delivered in vacuum heat treatment furnace by mechanical hand is carried out Vacuum is quenched, carries out 1050 DEG C of quenchings and 650 DEG C of tempering successively;
Step 8:The semi-finished product after tempering are taken out from vacuum heat treatment furnace and are delivered on surface grinding machine by mechanical hand, The end face of the semi-finished product after tempering is refined;
Step 9:The semi-finished product for completing end face fine-grinding are delivered on numerically controlled lathe from surface grinding machine by mechanical hand, half-and-half The endoporus of finished product carries out smart car;
Step 10:The semi-finished product for completing endoporus smart car are delivered on inner hole grinding machine from numerically controlled lathe by mechanical hand, half-and-half The endoporus of finished product is refined.
CN201510846235.7A 2015-11-27 2015-11-27 Production process for disc cutter ring of tunnel boring machine (TBM) CN105269270B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018220648A1 (en) * 2017-06-03 2018-12-06 Saradva Atulkumar Raghavjibhai A process of manufacturing of segments for carbon thrust bearing

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CN107664036B (en) * 2016-07-29 2020-09-11 上海力行工程技术发展有限公司 Center sleeve assembly for connecting shield cutter head and cutter head driving shaft
CN106862449B (en) * 2017-03-03 2018-03-27 吉林省维尔特隧道装备有限公司 The closed die forging forging method of complete-section tunnel boring machine hobboing cutter cutter ring
CN107283133A (en) * 2017-06-15 2017-10-24 江苏森威精锻有限公司 A kind of processing technology for the mould for improving the bounce of clutch can class workpiece
CN109261868A (en) * 2018-11-27 2019-01-25 南通四合不锈钢制品有限公司 A kind of manufacture craft of steel cutter
CN110153186A (en) * 2019-05-08 2019-08-23 河冶科技股份有限公司 High alloy mould steel hollow bloom preparation method and high alloy mould steel hollow bloom and tubing and annular cutter

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SU926302A1 (en) * 1976-02-11 1982-05-07 Karavaev Nikolaj P Prefabricated pipe for trenchless laying of pipes
CN101633110B (en) * 2008-10-21 2011-01-26 洛阳九久技术开发有限公司 Cutter ring manufacturing process
CN102517502B (en) * 2012-01-16 2014-01-15 株洲钻石钻掘工具有限公司 Disk-shaped roller cutter ring and manufacture method thereof
CN103484783B (en) * 2013-10-18 2015-07-15 株洲硬质合金集团有限公司 Alloy for cutter ring of disk type hobbing cutter and preparation method thereof
CN104070330A (en) * 2014-06-30 2014-10-01 成都高普石油工程技术有限公司 Processing technology for improved drill stems
CN204754799U (en) * 2015-06-23 2015-11-11 中铁三局集团有限公司 Gravity type precipitation well becomes well drill bit in tunnel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018220648A1 (en) * 2017-06-03 2018-12-06 Saradva Atulkumar Raghavjibhai A process of manufacturing of segments for carbon thrust bearing
CN110730696A (en) * 2017-06-03 2020-01-24 阿图库马尔·拉加夫吉布海·萨拉德瓦 Method for manufacturing segments for carbon thrust bearings

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