CN101782490A - Double hobbing cutter rock hobbing comprehensive test bed - Google Patents
Double hobbing cutter rock hobbing comprehensive test bed Download PDFInfo
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- CN101782490A CN101782490A CN 201010133137 CN201010133137A CN101782490A CN 101782490 A CN101782490 A CN 101782490A CN 201010133137 CN201010133137 CN 201010133137 CN 201010133137 A CN201010133137 A CN 201010133137A CN 101782490 A CN101782490 A CN 101782490A
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Abstract
The invention relates to a double hobbing cutter rock hobbing comprehensive test bed, which relates to rock tunnel boring machine hobbing cutter experimental equipment. The double hobbing cutter rock hobbing comprehensive test bed comprises a hydraulic system, a worktable, cutters, cutter holders, guide rails, a test system, a control system and the like. The worktable is pulled by a hydraulic system to move quickly and a test piece drives the hobbing cutters to hob rocks, the position of the test bed in the direction vertical to the motion direction of the worktable is adjusted by a screw, and the pressure plates at two ends of the worktable lock the test piece. The cutter holders are connected with cutter hydraulic push/pull rods through connecting discs; seven steel-embedding sliding blocks on four sides are matched with the steel-embedding guide rails on a test bed body to absorb the impact exerted by lateral loads on the hydraulic push rods; the hydraulic system drives the entire cutter holders to enter penetration regulation and keep a hobbing pressure. The test bed is reasonable, simple and safe in structural design and high in bearing capacity and impact strength.
Description
Technical field
The present invention relates to a kind of rock ripper hobboing cutter experimental facilities, be particularly related to a kind of experimental provision quick, the broken rock of many sizes hobboing cutter simulation that is used for---double hobbing cutter rock hobbing comprehensive test bed, be the visual plant that experimentizes in rock ripper design and the research.The design and manufacturing technology that belongs to the large-scale experiment platform.
Background technology
Rock ripper be realized broken rock, slagged tap, the large tunnel digging device of job factoryization such as transportation, lining cutting, supporting, characteristics such as safe, fast, efficient, little to environmental disruption, weatherproof make it now be widely used in the Tunnel Engineering that railway, water power, highway, subway and municipal administration etc. need be passed through the rock stratum.In the rock tunneling machine cutter design and research, determine that hobboing cutter rock breaking mechanism, efficient and abrasion mechanism are the bases, therefore press for the research and development to the hobboing cutter experimental provision.The purpose of developing this experiment table mainly is the actual broken rock process of imitation hobboing cutter, by to the different size hobboing cutter, carries out the broken rock experiment of roll extrusion under the condition of broken rock speed of difference and pile penetration, determines the mechanism of the stressed and broken rock in the broken rock process of hobboing cutter; By the forces testing analysis of cutter, and combine, design long-life hobboing cutter, solve the homemade rock ripper of China problem in this regard with rock-cracking mechanism and tool wear influence factor, rule, mechanism etc.Improve the rock tunneling machine cutter system design development ability of China greatly; formation has the product of independent intellectual property right; protection relates to sensitive informations such as national defense safety, national strategy military engineering and land resources, drives the development of related industries such as electromechanics, hydraulic pressure, material.
Twentieth century has just occurred the hobboing cutter experimental facilities abroad the seventies, and at present famous is the hobboing cutter testing table of Colorade USA mining institute, and the experiment table of hobboing cutter, rolling speed is about 1m/s for single.The Central South University of China once manufactured and designed the broken rock Research and development of test-bed work of real chi roll extrusion, and designed testing table is that normal thrust is 44t, and horizontal thrust is 22t, and rolling speed is 0.4m/s.The broken rock of roll extrusion mainly is that the crackle that adjacent hobboing cutter roll extrusion rock produces is connected, and forms rock and peels off, and mainly is the influence of cutter spacing to broken rock.The domestic people of having has designed cutter and changed the experiment table that rock is come brokenly in the tool position in arc groove, and this adjustment mode of cutter is not easy to realize, is unfavorable for accurate adjustment; Secondly, the hobboing cutter vestige is a series of concentric circless in the actual driving, and the arrangement of this cutter is not easy to realize for revision test; Once more, the highest undeclared rolling speed is difficult near actual condition.At domestic and international experimental facilities present situation, can not truly reflect the present situation of the actual conditions of the broken rock of roll extrusion, carried out twoly the development of hobboing cutter multi-function test stand, rolling speed can reach 1.5m/s, reflects that truly engineering breaks the rock process.Can adjust the spacing of two hobboing cutters, the optimization of arranging for cutter provides data refer.The most of research of China at present also is confined to theory, and rock is owing to exist natural defective, and result and reality that theoretical research is analyzed often exist than large deviation, and therefore, it is particularly important and necessary that experimental study just seems.The current experiment table that can carry out the broken fast rock emulation of rock ripper does not both at home and abroad have substantially, list can only carry out quantitative test to the hobboing cutter experiment table from crack depth and the width that the roll extrusion rock produces, and can not truly measure the influence of efficiency of breaking rock, tool wear for cutter spacing and the quick roll extrusion of cutter.Therefore, the thread hob comprehensive experiment table is a kind of visual plant of being badly in need of developing.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of platform that can be used to simulate the broken rock experiment of hobboing cutter, and development machine roll extrusion rock is carried out quick roll extrusion experiment, determines rock breaking mechanism and abrasion mechanism; To the forces testing of hobboing cutter in the roll extrusion experiment, for the preferred arrangement of the production domesticization of hobboing cutter, cutter, improve efficiency of breaking rock design reference is provided; Research hobboing cutter rolling speed, pile penetration, characteristics of surrounding rock, tool dimension to cutter stressed influence rule.
The objective of the invention is to be achieved through the following technical solutions:
Double hobbing cutter rock hobbing comprehensive test bed, comprise hydraulic system, worktable, cutter, tool rest, guide rail, test macro, control system, its test platform structure main points are: worktable is carried out rapid movement and drives hobboing cutter by test specimen breaking rock by the hydraulic system pulling, specimen stage is regulated its position by leading screw on the direction of motion of vertical table, the pressing plate at worktable two ends is locked specimen stage.
Described double hobbing cutter rock hobbing comprehensive test bed, its cutterhead base is connected with cutter hydraulic pressure pull bar by terminal pad, 7 edge steel slide blocks at four sides cooperate with the steel guideway on the testing table main body, prevent the impact of side load, drive the tool rest chassis whole by hydraulic system and carry out the adjusting of pile penetration and keep broken rock pressure power the hydraulic pressure pull bar.
Advantage of the present invention and effect are:
1. reasonable in design, simple, safety, bearing pressure is big, and anti-impact force is strong, can bear the 1000KN normal pressure, and X, Y are to load 150KN, the 300KN of can withstanding shocks;
2. rolling speed is high and adjustable, can adjust arbitrarily in 0.2～1.5m/s scope;
3. realize two the broken rock experiment of hobboing cutter; Cutter spacing setting range is big, locatees simple and reliable;
4. work stage employing self-centering designs and keeps the stable of workpiece.Adopt leading screw to drive X/Y to moving, mechanical system is adopted in the location, and is simple and reliable;
5. in rock roll extrusion experiment, more approaching true driving situation, table feed precision height can reach 4mm;
Can carry out the experiment of multiple size cutter, it is convenient to change.
Description of drawings
Fig. 1 of the present invention is a hobboing cutter rock comprehensive experiment table structural representation;
Fig. 2 of the present invention is worktable and Workpiece platform structure synoptic diagram;
Fig. 3 of the present invention is that the product material object is with reference to photo.The whether clear the understanding of the present invention that do not influence of photo.
Embodiment
The present invention is described in detail with reference to the accompanying drawings.
In the experimentation of the present invention, utilize workpiece motion s, drive hobboing cutter around self axle rotation.Hydraulic system pulling workpiece motion s reaches setting speed, and the pile penetration adjustment of hobboing cutter relies on the cutter hydraulic system.Adjusting mechanism is separately passed through in the adjustment of workpiece and cutter spacing, adopts the mechanical system location after the cutter adjustment, and is simple and reliable.
Main points of the present invention are its structure and principle.Its principle of work is, under the effect of cutter hydraulic system, the cutterhead base integrally drives hobboing cutter and moves up and down, rock surface is produced certain pile penetration, test specimen is under the pulling function of worktable hydraulic system, and the relative rock sample of hobboing cutter produces motion and displacement, and the motion of worktable drives cutter and rotates, cutter is cracked at rock surface, and crackle is connected and forms fragmentation.The rapid movement of test specimen and worktable is by its hydraulic system pulling, and the relative position of test specimen and hobboing cutter relies on the leading screw under the worktable to regulate, and specimen stage is by the locking of the pressing plate on the worktable.This equipment is compared with in the past equipment before, and it is reliable to have structural safety, and the adjustment of cutter spacing is simply accurate, and the location is reliable, and the rolling speed advantages of higher can be widely used in the research and exploitation of rock ripper.
The hobboing cutter comprehensive experiment table is made up of worktable propulsion system 1, tool pressure system 2, support 3, worktable 4, hobboing cutter 5, test specimen 6, specimen stage 7, cutter chassis 10 etc.Support is connected with base plate by 32 bolts, with proof strength, constitutes the testing table main body.
Worktable basal sliding guide pass is handled through scraping, and adopting with the guide pass of base has S type oil cavity polytetrafluoroethylene (PTFE) to cooperatively interact.Slide into and to guarantee the high-speed motion of worktable and prevent rollover.
Specimen stage and test specimen faying face are V-type, and tapering is 1: 7, and there is baffle plate both sides in addition, and bottom guide track scraping processing cooperates with the worktable upper rail.There is turn-screw the bottom and is with auto-lock function, and an end is fixed, and an end migration realizes that the position of specimen stage is adjusted.There is friction twitch-up at two ends, link to each other with worktable by 4 M36 stud bolts, and specimen stage is locked.
Top board below is a tooling system, can install 14 on the knife rest ", 17 ", 19 " three kinds of size hobboing cutters, scalable cutter spacing and positioning and lockings.
The cutterhead base is connected with cutter hydraulic pressure pull bar by terminal pad, 7 edge steel slide blocks at four sides cooperate with the steel guideway on the testing table main body, prevent the impact of side load, drive tool rest integral body by hydraulic system and carry out the adjusting of pile penetration and keep broken rock pressure power hydraulic push rod; Rotate the position of adjusting work stage on sliding table by leading screw 8, by pressing plate 9 and bolt work stage is positioned and locks, by hydraulic system pulling worktable, make workpiece in the experiment, drive the hobboing cutter rotation and break the rock experiment with the roll extrusion of speed setting value by hobboing cutter.
Claims (2)
1. double hobbing cutter rock hobbing comprehensive test bed, comprise hydraulic system, worktable, cutter, tool rest, guide rail, test macro, control system, it is characterized in that the test platform structure main points are: worktable is carried out rapid movement and drives hobboing cutter by test specimen breaking rock by the hydraulic system pulling, specimen stage is regulated its position by leading screw on the direction of motion of vertical table, the pressing plate at worktable two ends is locked specimen stage.
2. according to claim 1 double hobbing cutter rock hobbing comprehensive test bed, it is characterized in that the cutterhead base is connected with cutter hydraulic pressure pull bar by terminal pad, 7 edge steel slide blocks at four sides cooperate with the steel guideway on the testing table main body, prevent the impact of side load, drive the tool rest chassis whole by hydraulic system and carry out the adjusting of pile penetration and keep broken rock pressure power the hydraulic pressure pull bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201010133137 CN101782490A (en) | 2010-03-26 | 2010-03-26 | Double hobbing cutter rock hobbing comprehensive test bed |
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| CN 201010133137 CN101782490A (en) | 2010-03-26 | 2010-03-26 | Double hobbing cutter rock hobbing comprehensive test bed |
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| CN101782490A true CN101782490A (en) | 2010-07-21 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062716A (en) * | 2010-12-02 | 2011-05-18 | 沈阳建筑大学 | Moving worktable for double-thread hob experiment |
| CN103226077A (en) * | 2013-03-18 | 2013-07-31 | 北京工业大学 | Mechanical rock breaking test platform |
| AT513982B1 (en) * | 2013-04-24 | 2014-09-15 | Montanuniversität Leoben | Apparatus and method for model cutting test |
| CN104062197A (en) * | 2014-07-14 | 2014-09-24 | 中南大学 | Testing device for abrasion property of hard rock hobbing cutter |
| CN109386287A (en) * | 2017-08-02 | 2019-02-26 | 中国石油化工股份有限公司 | For determining the device of the drillability of rock |
| CN110672451A (en) * | 2019-09-29 | 2020-01-10 | 西南石油大学 | Method for predicting normal cutting force of shield hob |
| CN111157389A (en) * | 2019-12-31 | 2020-05-15 | 西南交通大学 | TBM rock breaking test bed with linear/rotary dual modes |
| CN114636544A (en) * | 2020-12-16 | 2022-06-17 | 中国石油大学(华东) | Laser rock breaking comprehensive test bed |
| CN114674260A (en) * | 2022-03-28 | 2022-06-28 | 沈阳建筑大学 | Wear detection method for scraper of full-face tunnel boring machine |
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| CN101299013A (en) * | 2008-06-23 | 2008-11-05 | 沈阳重型机械集团有限责任公司 | Tool bit rock breaking mechanism and abrasion tester |
| CN101446537A (en) * | 2008-11-10 | 2009-06-03 | 中南大学 | Adjustable multi-hob rock cutting fragmentation test means |
| CN101592533A (en) * | 2009-07-10 | 2009-12-02 | 沈阳重型机械集团有限责任公司 | Synchronous detection test device for multi-item parameters of linear TBM hobs |
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2010
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| US5670711A (en) * | 1996-03-08 | 1997-09-23 | Regents Of The University Of Minnesota | Portable rock strength evaluation device |
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| CN101446537A (en) * | 2008-11-10 | 2009-06-03 | 中南大学 | Adjustable multi-hob rock cutting fragmentation test means |
| CN101592533A (en) * | 2009-07-10 | 2009-12-02 | 沈阳重型机械集团有限责任公司 | Synchronous detection test device for multi-item parameters of linear TBM hobs |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062716A (en) * | 2010-12-02 | 2011-05-18 | 沈阳建筑大学 | Moving worktable for double-thread hob experiment |
| CN103226077A (en) * | 2013-03-18 | 2013-07-31 | 北京工业大学 | Mechanical rock breaking test platform |
| CN103226077B (en) * | 2013-03-18 | 2015-10-14 | 北京工业大学 | Mechanical rock breaking test platform |
| AT513982B1 (en) * | 2013-04-24 | 2014-09-15 | Montanuniversität Leoben | Apparatus and method for model cutting test |
| AT513982A4 (en) * | 2013-04-24 | 2014-09-15 | Montanuniversität Leoben | Apparatus and method for model cutting test |
| CN104062197A (en) * | 2014-07-14 | 2014-09-24 | 中南大学 | Testing device for abrasion property of hard rock hobbing cutter |
| CN109386287A (en) * | 2017-08-02 | 2019-02-26 | 中国石油化工股份有限公司 | For determining the device of the drillability of rock |
| CN109386287B (en) * | 2017-08-02 | 2020-06-02 | 中国石油化工股份有限公司 | Device for determining the drillability of rock |
| CN110672451A (en) * | 2019-09-29 | 2020-01-10 | 西南石油大学 | Method for predicting normal cutting force of shield hob |
| CN111157389A (en) * | 2019-12-31 | 2020-05-15 | 西南交通大学 | TBM rock breaking test bed with linear/rotary dual modes |
| CN114636544A (en) * | 2020-12-16 | 2022-06-17 | 中国石油大学(华东) | Laser rock breaking comprehensive test bed |
| CN114674260A (en) * | 2022-03-28 | 2022-06-28 | 沈阳建筑大学 | Wear detection method for scraper of full-face tunnel boring machine |
| CN114674260B (en) * | 2022-03-28 | 2023-12-26 | 沈阳建筑大学 | Full-face tunnel boring machine scraper abrasion detection method |
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Application publication date: 20100721 |