CN101446536A - Position adjustable multi-hob rotary cutting test-bench - Google Patents
Position adjustable multi-hob rotary cutting test-bench Download PDFInfo
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- CN101446536A CN101446536A CNA2008101435518A CN200810143551A CN101446536A CN 101446536 A CN101446536 A CN 101446536A CN A2008101435518 A CNA2008101435518 A CN A2008101435518A CN 200810143551 A CN200810143551 A CN 200810143551A CN 101446536 A CN101446536 A CN 101446536A
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Abstract
The invention relates to a position adjustable multi-hob rotary cutting test-bench. The soil warehouse base fixed on the soil warehouse and a rectangular base fixed on the ground frame are supported by a looping support and looped by two hydraulic motors synchronously. Periphery of the soil warehouse is provided with flanges, which is provided with four guiding pillars evenly and four hydraulic cylinders; the four hydraulic cylinders driven synchronous vertical position into the soil to the campaign from the four columns to orientation and direction of torque transmission. 6 shelves uniform foundation column layout, fixed a column to open the top 4 at the top ring groove of the frame, forming a rectangular frame; connected at the top of the bottom bracket has three slide rail and the knife block, plate hob installed in the Seat knife. Using IPC test, data acquisition cards, the pressure of the flow velocity sensor, dynamic strain gauge, high-speed digital camera system on the cutting process of geotechnical monitoring. The test-bench is mainly used for the multi-hob and rotary cutting of rock mechanical properties of the relevant test.
Description
Technical field
The present invention relates to a kind of cutting test platform that is used for the many hobboing cutters of shield structure in Tunnel Engineering field, especially relate to the revolution cutting test platform of the adjustable positions of disk cutter.
Background technology
21 century is the century of Chinese engineering construction fast development, enters the new century, and the exploitation of heavy constructions such as water conservancy, the energy, traffic has become the emphasis of China's economic construction.Enforcement along with the Large scale construction and the strategy to develop western regions of China's infrastructure, engineerings such as railway, highway, large medium-size station construction and the south water to north all will have a large amount of length, big tunnel to need to build, and the subway engineering during modern city is built, municipal works (sewage pipe, water-supply-pipe), cross-river tunnel are also in continuous increase.Shield method relies on it self advantage to become the first-selection of unit in charge of construction gradually, and in the shield driving process, the correct use in the performance of cutter and the construction and the driving speed and the excavation cost in tunnel are closely related.Engineering practice shows, the time of operations such as the inspection that cutterhead is fixed a cutting tool, replacing and maintenance accounts for 1/3rd of tunneling construction T.T., and the expense of cutter accounts for 1/3rd of tunneling construction expense, and therefore necessary cutting ability to cutter is carried out deep research.
Disk cutter is the main cutting tools for cutting of cutting fractured rock on the shield machine, and it mainly by rock is carried out roll extrusion, realizes the cutting and crushing of rock.At the high-intensity lithosphere of excavation and under the situation of long distance, the wearing and tearing of disk cutter and loss meeting are very fast, this just requires to change continually disk cutter, but not only workload is big but also danger close to change cutter, therefore the force-bearing situation of hobboing cutter is analyzed when being necessary to disk cutter is particularly many disk cutter to be cooperated cutting, so that the rock breaking mechanism to hobboing cutter is studied, the disk cutter structure is improved accordingly, to prolong the working durability of disk cutter.
Present Colorade USA mining institute, high universities and colleges such as domestic Shanghai Communications University, Northeast Polytechnic College are studied the cutting scheme of hobboing cutter, Colorado School of Mines has made single the linear incision testing table of hobboing cutter (Linear CuttingMachine), domestic Northeast Polytechnic College has been developed single the rock failure testing table of hobboing cutter, but does not see delivering of relevant patent.For accurately disclosing the rock breaking mechanism in the disk cutter practical work process, systematically reflect the influence of cutter spacing and phasing degree to disk cutter cutting rock mass, therefore invented the revolution cutting test platform of this hobboing cutter adjustable positions.
Summary of the invention
The object of the present invention is to provide a kind of multi-hob rotary cutting test-bench of adjustable positions, can realize the installation of 3 disk cutters, own rotation and along with the situation of cutterhead revolution during simulation disk cutter fractured rock, and can realize the adjustment of disk cutter phasing degree and cutter spacing, thereby systematically record the force-bearing situation of hobboing cutter, the rock breaking mechanism of research disk cutter is to improve the working durability of disk cutter.
The present invention mainly is achieved through the following technical solutions, and the present invention is mainly by top-support, chute guide rail, connector, hob head, disk cutter, column, Tu Cang, vertical hydraulic cylinder, oil motor, native storehouse supporting seat, pivoting support, compositions such as base and ground pedestal.It is characterized in that, the fixing native storehouse supporting seat of Tu Cang and be fixed between the rectangular base of ground on the pedestal and adopt pivoting support, and by 2 oil motor driven in synchronism revolutions, oil motor is contained on the motor erecting frame, the motor erecting frame is installed on the ground pedestal; The inner ring of pivoting support is fixed on the rectangular base, and the outer ring is connected with native storehouse supporting seat; Tu Cang is fixed on the supporting seat of native storehouse, and Tu Cang has flange, is connected with four equally distributed hydraulic cylinders that are fixed on the supporting seat of native storehouse under the flange, realizes Tu Cang feed motion in vertical direction; Be fixed on four guide pillars on the supporting seat of native storehouse and pass the outer wall of this Tu Cang, the vertical movement of native storehouse is play the guiding role, the moment of torsion that pivoting support is transmitted passes to Tu Cang simultaneously, and native storehouse can be rotated; The Tu Cang both sides are arranged vertically six roots of sensation column, the column below also is fixed on the ground pedestal, a top-support that has four road annular grooves is fixed on the column top, form a rectangular frame, the top-support below is connected with three chute guide rails, each chute guide rail below respectively is connected with a disk cutter seat by connector, and disk cutter is contained on the hob head; The testing table electrical system adopts PLC control, provide power by hydraulic system, the supervisory system that has industrial computer, data collecting card, pressure transducer, flow sensor, scrambler, dynamic strain indicator, high-speed figure camera system that cutting process is on the way monitored.
The groove of described top-support is symmetrically distributed, and is arc groove, and their angle coincidence amount can guarantee every phasing degree amount of movement that disk cutter is had 0 °~120 °.
Described chute guide rail adopts bolt and nut to be connected with top-support, can realize the adjustment at disk cutter phasing degree by chute guide rail moving in groove.
Described connector is connected by bolt and nut in the groove of chute guide rail, by the adjustment of moving the radius of clean-up that can realize disk cutter of connecting screw rod in groove of connector.
The cutter spacing of described adjacent two disk cutters remains constant in working angles, in halted state, can adjust the cutter spacing as required between 40~120mm.
The sensor of adorning on the described disk cutter seat is a three-dimensional force transducer, suffered three-dimensional power situation when being used for measuring disk cutter cutting rock mass.
Built-in displacement transducer is housed on the described hydraulic cylinder, imports and exports on the oil circuit pressure transducer and flow sensor are housed, be used for measuring the pile penetration of pressure, speed and the disk cutter of hydraulic cylinder.
On the import and export oil circuit on the described oil motor pressure and flow sensor have been installed, have been adorned scrambler on the pivoting support, moment of torsion, speed of gyration and energy consumption when being used for the test cutting.
Described high-speed figure camera system can be carried out the microcosmic photography to the process that disk cutter cuts rock mass, is convenient to study the microscopic mechanism of the broken rock of disk cutter.
Apparatus of the present invention are simple, flexible and changeable, reusable, can simulate the experiment of carrying out 3 hobboing cutter revolution rock cuttings; The different of disk cutter revolution cutting and linear interpolation have not only been considered, and can realize the adjustment of disk cutter on phasing degree and radius of clean-up, to greatest extent near the cutting situation of disk cutter in the actual conditions, can accurately obtain pile penetration, cutting speed and the suffered three-dimensional power situation of disk cutter at the trial, and the rock cutting microscopic mechanism photo when broken, whole experiment is intuitively accurate, provides foundation for systematically studying the hobboing cutter rock breaking mechanism and improving the hobboing cutter structure to prolong the disk cutter working durability.
Description of drawings
Fig. 1 is the multi-hob rotary cutting test-bench front view of adjustable positions;
Fig. 2 is that the multi-hob rotary cutting test-bench D-D of adjustable positions is to view;
Fig. 3 is that the multi-hob rotary cutting test-bench A-A of adjustable positions is to view;
Fig. 4 is that the multi-hob rotary cutting test-bench B of adjustable positions is to the top-support view;
Fig. 5 is that the multi-hob rotary cutting test-bench C of adjustable positions is to the top-support view;
Fig. 6 is the multi-hob rotary cutting test-bench hobboing cutter mounting means synoptic diagram of adjustable positions.
Embodiment
As shown in Figure 1, bolt 1, nut 2, backing plate 3, top-support 4, chute guide rail 5, connector 6, hob head 7, disk cutter 8, guidepost 9, column 11, native storehouse 10, vertical hydraulic cylinder 12, oil motor 20, native storehouse supporting seat 13, pivoting support 14, pinion wheel 15, base 17 and ground pedestal 18 etc. have been the present invention includes.Employing pivoting support 14 between the native storehouse supporting seat 13 in fixing native storehouse 10 and the rectangular base 17 that is fixed on the ground pedestal 18, and by 2 oil motor 20 driven in synchronism revolutions, oil motor 20 is contained on the motor erecting frame 16, and the motor erecting frame is installed on the ground pedestal 18.The inner ring of pivoting support 14 is fixed on the rectangular base 15, and the outer ring is connected with native storehouse supporting seat 13.Soil storehouse 10 has flange, is connected with four equally distributed vertical hydraulic cylinders 12 that are fixed on the native storehouse supporting seat 13 under the flange, and vertical hydraulic cylinder 12 can be realized Tu Cang motion in vertical direction.Being fixed on four guide pillars 9 on the native storehouse supporting seat 13 and passing the outer wall in native storehouse 10, mainly is that native storehouse 10 is play the guiding role in uphill process, simultaneously the moment of torsion of pivoting support 14 is delivered to native storehouse 10 and gets on.Both sides are arranged vertically six roots of sensation column 11, and column 11 belows are fixed on the ground pedestal 18, and a top-support 4 that has four road annular grooves is fixed on column 11 tops, forms a rectangular frame.Top-support 4 belows are connected with three chute guide rails 5, and each chute guide rail 5 below respectively is connected with a disk cutter seat 7 by connector 6, and disk cutter 8 is contained on the hob head 7.
The concrete course of work is:
Earlier ground test material 19 is added in the storehouse 10 of burying during work, driving vertical hydraulic cylinder 12 then makes native storehouse 10 rise to certain position, guarantee that disk cutter 8 has a suitable depth of penetration, and make disk cutter 8 bear suitable pressure, play the guiding role at hydraulic cylinder uphill process guidepost 9.And rear drive oil motor 20, driving pivoting support 14 rotates, make it produce suitable rotating speed, by guidepost 9 moment of torsion and rotating speed are delivered on the native storehouse 10 simultaneously, the cutting situation of disk cutter 8 when simulating shield cutter cutting rock mass with this, and can obtain depth of penetration, cutting speed about disk cutter 8 and the data of suffered three-dimensional power in real time by the sensor that is equipped with on hob head 7, hydraulic cylinder 12 and the oil motor 20, micrograph when also available high-speed figure camera system is obtained the broken ground test material 19 of disk cutter 8.Finish after the rock mass cutting, the nut 2 of top-support 4 upper ends can be unscrewed as required, make chute guide rail 5 in the groove of top-support 4, to move, under the constant situation of other conditions, finish the adjusting at disk cutter 8 phasing degree; Perhaps also the attaching nut of connector 6 can be unscrewed, make connector 6 in chute guide rail 5, to move, under the constant situation of other conditions, finish the adjusting of disk cutter 8 radiuss of clean-up; Certainly also can move both simultaneously, regulate in the time of with realization disk cutter 8 phasing degree and radius of clean-up.
Claims (9)
1, a kind of multi-hob rotary cutting test-bench of adjustable positions, mainly by top-support (4), chute guide rail (5), connector (6), hob head (7), disk cutter (8), column (11), Tu Cang (10), drive hydraulic cylinder (12), oil motor (20), soil storehouse supporting seat (13), pivoting support (14), rectangular base (17) and ground pedestal (18) are formed, it is characterized in that: the fixing native storehouse supporting seat (13) of Tu Cang (10) and be fixed between the rectangular base (17) on ground pedestal (18) and adopt pivoting support (14), and turn round by 2 oil motors (20) driven in synchronism, oil motor (20) is contained on the motor erecting frame (16), and motor erecting frame (16) is installed on the ground pedestal (18); The inner ring of pivoting support (14) is fixed on the rectangular base (17), and the outer ring is connected with native storehouse supporting seat (13); Tu Cang (10) is fixed on the native storehouse supporting seat (13), and Tu Cang (10) has flange, is connected with four equally distributed hydraulic cylinders (12) that are fixed on the native storehouse supporting seat (13) under the flange, realizes Tu Cang (10) feed motion in vertical direction; Be fixed on four guideposts (9) on the native storehouse supporting seat (13) and pass the outer wall of Tu Cang (10), vertical movement play the guiding role guidepost (9) to Tu Cang (10), the moment of torsion that pivoting support (14) is transmitted passes to Tu Cang (10) simultaneously, and Tu Cang (10) can be rotated; Tu Cang (10) both sides are arranged vertically six roots of sensation column (11), and column (11) below is fixed on the ground pedestal (18), and a top-support (4) that has four road annular grooves is fixed on column (11) top, forms a rectangular frame; Top-support (4) below is connected with three chute guide rails (5), and each chute guide rail (5) below respectively is connected with a disk cutter seat (7) by connector (6), and disk cutter (8) is contained on the hob head (7); The testing table electrical system adopts PLC control, provide power by hydraulic system, the supervisory system that has industrial computer, data collecting card, pressure transducer, flow sensor, scrambler, dynamic strain indicator, high-speed figure camera system that cutting process is on the way monitored.
2, the multi-hob rotary cutting test-bench of adjustable positions according to claim 1, it is characterized in that: the groove of described top-support (4) is symmetrically distributed, be arc groove, their angle coincidence amount can guarantee every phasing degree amount of movement that disk cutter (8) is had 0 °~120 °.
3, the multi-hob rotary cutting test-bench of adjustable positions according to claim 1, it is characterized in that: described chute guide rail (5) adopts bolt and nut to be connected with top-support (4), can realize the adjustment at disk cutter (8) phasing degree by chute guide rail (5) moving in groove.
4, the multi-hob rotary cutting test-bench of adjustable positions according to claim 1, it is characterized in that: described connector (6) is connected by bolt and nut in the groove of chute guide rail (5), by the adjustment of moving the radius of clean-up that can realize disk cutter (8) of connector (6) in groove.
5, the multi-hob rotary cutting test-bench of adjustable positions according to claim 1 is characterized in that: the cutter spacing of described adjacent two disk cutters (8) is adjustable at 40~120mm.
6, the multi-hob rotary cutting test-bench of adjustable positions according to claim 1, it is characterized in that: the pressure transducer that described disk cutter seat (7) is gone up dress is a three-dimensional force transducer, suffered three-dimensional power situation when being used for measuring disk cutter (8) cutting ground test material (19).
7, the rotary cutting testing table of hobboing cutter adjustable positions according to claim 1, it is characterized in that: described hydraulic cylinder (12) has built-in displacement transducer, import and export on the oil circuit pressure transducer and flow sensor are housed, be used for measuring the pile penetration of pressure, speed and the disk cutter (8) of hydraulic cylinder (12).
8, the rotary cutting testing table of hobboing cutter adjustable positions according to claim 1, it is characterized in that: on the import and export oil circuit of described oil motor (20) pressure and flow sensor have been installed, on pivoting support (14), scrambler has been installed, has been used for measuring power, moment of torsion and the speed of gyration of cutting.
9, the rotary cutting testing table of hobboing cutter adjustable positions according to claim 1 is characterized in that: go up replaceable installation cutting knife at hob head (7), carry out the hobboing cutter cutting knife and cooperate cutting weak soil and sandstone test.
Priority Applications (1)
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CN2008101435518A CN101446536B (en) | 2008-11-10 | 2008-11-10 | Position adjustable multi-hob rotary cutting test-bench |
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CN2008101435518A CN101446536B (en) | 2008-11-10 | 2008-11-10 | Position adjustable multi-hob rotary cutting test-bench |
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CN101446536B CN101446536B (en) | 2011-02-02 |
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CN101793654A (en) * | 2010-03-26 | 2010-08-04 | 沈阳建筑大学 | Double-hob experiment table cutter system |
CN102323164A (en) * | 2011-06-10 | 2012-01-18 | 河海大学 | Two-dimensional cutting instrument |
CN103226078A (en) * | 2013-03-18 | 2013-07-31 | 广州市新欧机械有限公司 | Mechanical rock breaking test machine rotation rock breaking apparatus |
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