CN103969141A - A hard rock hobbing cutter rock breaking characteristic testing device - Google Patents
A hard rock hobbing cutter rock breaking characteristic testing device Download PDFInfo
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- CN103969141A CN103969141A CN201310032227.XA CN201310032227A CN103969141A CN 103969141 A CN103969141 A CN 103969141A CN 201310032227 A CN201310032227 A CN 201310032227A CN 103969141 A CN103969141 A CN 103969141A
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Abstract
A hard rock hobbing cutter rock breaking characteristic testing device used in the field of tunnel engineering is provided. A rock silo supporting seat is positioned on a guide rail pair and realizes longitudinal motion by a longitudinal-moving hydraulic cylinder; a rock silo is positioned on the rock silo supporting seat and realizes lateral movement by lateral moving hydraulic cylindersfixed on the rock silo supporting seat; rock samples are positioned inside the rock silo. Two columns are vertically arranged at both sides of the rock silo, top ends of the columns are connected by a beam and thus a gantry structure is formed. A vertical hydraulic cylinder is fixed on the beam, and the lower part of the vertical hydraulic cylinder is connected with a walking beam. Under the walking beam, a hobbing cutter is installed to simulate the process of hobbing cutter rock breaking, or a similar hobbing cutter wearing module is installed to simulate the process of similar hobbing cutter wearing. An industrial computer, a data acquisition card, a three-axis force sensor, an acoustic emission device and a high-speed digital camera system are used to monitor the processes of hobbing cutter rock breaking and wearing. The device is capable of simulating the process of rolling-type rock breaking of the hobbing cutter, the process of rolling and impact-combined type rock breaking of the hobbing cutter and the process of similar hobbing cutter wearing.
Description
Technical field
The proving installation that the present invention relates to a kind of TBM for Tunnel Engineering field (hard rock mole) driving cutter simulation cutting rock, especially relates to the broken rock characteristic test device of a kind of hard rock hob.
Background technology
In recent years along with China's underground space engineering construction in the urgent need to the raising of scientific and technological level, TBM is used widely in the construction of the Tunnel Engineering such as railway tunnel, municipal pipeline, diversion irrigation, transfering natural gas from the west to the east.Disk cutter is the main cutting tools for cutting of the upper fractured rock of TBM, and its efficiency of breaking rock and abrasion condition have directly affected progress and the cost of underground engineering construction.Therefore necessary the broken rock characteristic of TBM cutter is carried out to experimental study.
Find by the retrieval to domestic and international pertinent literature and data, Duo Suo colleges and universities and research institution have all carried out experimental study to the broken rock characteristic of TBM knife disc tool both at home and abroad at present.The mechanisms such as domestic Northeast Polytechnic College, Central South University, Shenyang heavy-duty machinery Group Co.,Ltd, Shanghai Tunnel Engineering stock Co., Ltd and China Railway Tunneling Equipment Co., Ltd. have all carried out experimental study to the broken rock characteristic of hobboing cutter.Northeast Polytechnic College has been developed the Test of rock cracking platform of oneself, and performance when their testing table can cut fractured rock hobboing cutter to list is studied, but does not see delivering of Patents; The patent of invention ZL200810143551.8 of Central South University, name is called: the multi-hob rotary cutting test-bench that a kind of position is adjustable, this testing table can be simulated and many hobboing cutter be turned round to rock cutting simultaneously; The patent of invention ZL200810143552.2 of Central South University, name is called: a kind of adjustable multi-hob rock cutting fragmentation test means, this test unit can be simulated many actual hobboing cutter linear incision rock, and cutter spacing is adjustable; Document [Multifunction Test of rock cracking device] has been mentioned a kind of sound combination Test of rock cracking device, this test unit both can be used for the cutting of single static pressure, impact grinding (relying on motor and weight to regulate), static(al) and had been pressed into rock test, can be used for again the broken rock test under dynamic and static combined load effect; The patent of invention CN102445336A of Shenyang heavy-duty machinery Group Co.,Ltd, name is called: Multi-blade multi-angle rock breaking device for rock ripper, this testing table can be simulated much knives tool multiple angles fractured rock; The patent of invention ZL200410089260.7 of Shanghai Tunnel Engineering stock Co., Ltd, name is called: large shield tunnelling analogue test platform, this testing table is a large shield tunnelling analogue test platform, for simulating shield driving overall process; The patent of invention CN102788693A of China Railway Tunneling Equipment Co., Ltd., name is called: shield structure and TBM hobboing cutter testing table, this testing table can be simulated many actual TBM hobboing cutter revolution rock break-off process.
The mechanisms such as external Colorade USA mining institute, Korea S Korea Institute of Construction Technology, Turkey Istanbul Technical University have also carried out experimental study to the broken rock characteristic of hobboing cutter.The linear incision testing table (Linear Cutting Machine) of the Colorade USA mining institute development that document [Disc cutting testsin Colorado Red Granite:Implications for TBM performance prediction] is mentioned, the broken rock testing table of hobboing cutter of the Korea S Korea Institute of Construction Technology development that document [Optimum spacing of TBM disccutters:A numerical simulation using the three-dimensional dynamic fracturing method] is mentioned, document [Correlation of rockcutting tests with field performance of a TBM in a highly fractured rock formation:A case study inKozyatagi-Kadikoy metro tunnel, Turkey] the broken rock testing table of hobboing cutter of the Turkey Istanbul Technical University development mentioned.
Hobboing cutter breaks rock testing table or only limits to hobboing cutter static pressure cutting rock to study both at home and abroad above, can not study hobboing cutter rock fracture in dynamic indentation; Or can apply simultaneously and impact and roll extrusion, but owing to being to rely on motor and weight to apply mechanical type to impact, the order of magnitude and the adjustable extent of its power are less, can not be used for TBM disk cutter and impact the compound broken rock experiment of roll extrusion.These similar experiment tablees but can not be studied hob abrasion process.Therefore developed the broken rock characteristic test device of this hard rock hob.This proving installation not only can apply static pressure load on hobboing cutter, but also can on hobboing cutter, apply shock load; This proving installation can impact compound rock break-off process to the broken rock of hobboing cutter roll extrusion, hobboing cutter roll extrusion to be studied, and can study similar hob abrasion process again.
Summary of the invention
The object of the present invention is to provide a kind of hard rock hob to break rock characteristic test device, can either simulate the broken rock of hobboing cutter roll extrusion, compound rock break-off process is impacted in hobboing cutter roll extrusion, record the force-bearing situation of hobboing cutter, compound rock breaking mechanism is impacted in the broken rock of research hobboing cutter roll extrusion and roll extrusion, to improve the stock-removing efficiency of disk cutter; Can simulate again similar hob abrasion process, abrasion mechanism and the characteristic of research hobboing cutter under static pressure load, to improve the serviceable life of disk cutter.
The present invention mainly realizes by following scheme, and the present invention mainly comprises vertical hydraulic cylinder, crossbeam, column, moved cross beam, three-dimensional force transducer, hobboing cutter mount pad, hobboing cutter, rock sample, Shi Cang, traversing hydraulic cylinder, stone storehouse supporting seat, guideway, vertical shift hydraulic cylinder, impact bar, impact hydraulic cylinder, similar hob abrasion module mount pad, oil motor, shaft coupling, coupling shaft, similar hobboing cutter, similar hobboing cutter mount pad, small-range three-dimensional force transducer and test macro.On guideway, place stone storehouse supporting seat, stone storehouse supporting seat connects one and is fixed on vertical shift hydraulic cylinder on the ground, and vertical shift hydraulic cylinder is realized the feed motion of stone storehouse longitudinal direction, stone storehouse is placed on the supporting seat of stone storehouse, and stone is placed with rock sample in storehouse, stone storehouse connects two traversing hydraulic cylinders that are fixed on the supporting seat of stone storehouse, and traversing hydraulic cylinder is realized the feed motion of horizontal direction in the surface level of stone storehouse, Shi Cang both sides are arranged vertically two columns, and column top is fixed wtih a crossbeam, form a gantry frame structure, on crossbeam, fix a vertical hydraulic cylinder, realize the feed motion of hobboing cutter vertical direction, moved cross beam is equipped with in vertical hydraulic cylinder below, and moved cross beam inside is provided with an impact hydraulic cylinder, and an impact bar is installed in impact hydraulic cylinder below, while carrying out the broken rock of hobboing cutter roll extrusion or the compound broken rock test of hobboing cutter roll extrusion impact, the impact bar lower end of moved cross beam inside connects three-dimensional force transducer, and hobboing cutter is connected on the tool rest of three-dimensional force transducer below, while carrying out similar hob abrasion test, similar hob abrasion module is installed in moved cross beam bottom surface, similar hob abrasion module is by similar hob abrasion module mount pad, oil motor, shaft coupling, coupling shaft, similar hobboing cutter, similar hobboing cutter mount pad and small-range three-dimensional force transducer composition, small-range three-dimensional force transducer is fixed on one end of similar hob abrasion module mount pad, similar hobboing cutter is fixed on the similar hobboing cutter mount pad of small-range three-dimensional force transducer below, oil motor is fixed on the other end of similar hob abrasion module mount pad, shaft coupling is used for being coaxially connected similar hobboing cutter and oil motor with coupling shaft, the electrical system of apparatus of the present invention adopts PLC to control, provide power by hydraulic system, adopt the supervisory system of industrial computer, data collecting card, three-dimensional force transducer, pressure transducer, flow sensor, acceleration transducer, scrambler, dynamic strain indicator, acoustic emission device, high-speed digital photography system composition to monitor hobboing cutter rock break-off process and wear process.
Described vertical hydraulic cylinder can apply static pressure load on hobboing cutter, realizes the broken rock of hobboing cutter roll extrusion.
Described vertical hydraulic cylinder adopts servocontrol, can on hydraulic cylinder, apply pulse, and waveform, frequency and the amplitude parameter of pressure all can regulate, and realizes fluid pressure type roll extrusion and impacts compound broken rock.
Described impact hydraulic cylinder can apply impulsive force on impact bar, and waveform, frequency and the amplitude parameter of impulsive force all can regulate, and realizes mechanical type roll extrusion and impacts compound broken rock.
Described similar hob abrasion module is used for simulating similar hob abrasion process, vertical hydraulic cylinder drives the similar hobboing cutter in similar hob abrasion module to be pressed into after rock, primer fluid pressure motor, oil motor drives similar hobboing cutter rotation by shaft coupling and coupling shaft, strengthen the sliding rate of similar hobboing cutter and rock sample, reach the object of accelerated wear test.
Described column coordinates with moved cross beam, and moved cross beam is play the guiding role, and prevents that vertical hydraulic cylinder is subject to Moment simultaneously.
Described three-dimensional force transducer and small-range three-dimensional force transducer are the sensor that can measure three direction power, suffered larger three-dimensional power situation when the former is used for measuring the broken rock of hobboing cutter, suffered less three-dimensional power situation when the latter is used for measuring similar hob abrasion.
Described vertical hydraulic cylinder, traversing hydraulic cylinder and vertical shift hydraulic cylinder have external displacement transducer, import and export on oil circuit pressure transducer and flow sensor are housed, the degree of depth of pressure, speed, displacement and hobboing cutter with the similar hobboing cutter injection rock sample that is used for measuring vertical hydraulic cylinder, traversing hydraulic cylinder and vertical shift hydraulic cylinder.
On the import and export oil circuit of described oil motor, pressure and flow sensor are installed, the moment of torsion while being used for measuring similar hob abrasion and rotating speed.
The present invention can realize the broken rock of hobboing cutter roll extrusion and compound broken rock experiment is impacted in hobboing cutter roll extrusion, three-dimensional power load data while directly obtaining the broken rock of hobboing cutter, and can be observed rock failure feature in hobboing cutter rock break-off process, provide foundation for studying hobboing cutter rock breaking mechanism and efficiency of breaking rock; Simultaneously, apparatus of the present invention also can be carried out the accelerated wear test of similar hobboing cutter, sliding velocity between three-dimensional power load data and similar hobboing cutter and rock can directly obtain similar hob abrasion time, and can observe the shape characteristic of similar hobboing cutter outside surface in wear process, for research hob abrasion influence factor provides foundation.
Brief description of the drawings
Fig. 1 is the broken rock characteristic test device front view of hard rock hob
Fig. 2 is the structural representation of similar hob abrasion module
Fig. 3 is the broken rock characteristic test device left view of hard rock hob
Fig. 4 is the broken rock characteristic test device A-A vertical view of hard rock hob
Embodiment
As shown in the figure, the present invention is mainly made up of vertical hydraulic cylinder 1, crossbeam 2, column 3, moved cross beam 4, three-dimensional force transducer 5, hobboing cutter mount pad 6, hobboing cutter 7, rock sample 8, stone storehouse 9, traversing hydraulic cylinder 10, stone storehouse supporting seat 11, guideway 12, vertical shift hydraulic cylinder 13, impact bar 14, impact hydraulic cylinder 15, similar hob abrasion module mount pad 16, oil motor 17, shaft coupling 18, coupling shaft 19, similar hobboing cutter 20, similar hobboing cutter mount pad 21, small-range three-dimensional force transducer 22 and test macro.On guideway 12, place stone storehouse supporting seat 11, stone storehouse supporting seat 11 connects one and is fixed on vertical shift hydraulic cylinder 13 on the ground, and vertical shift hydraulic cylinder 13 is realized the feed motion of stone storehouse 9 longitudinal directions, stone storehouse 9 is placed on stone storehouse supporting seat 11, is placed with rock sample 8 in stone storehouse 9, stone storehouse 9 connects two traversing hydraulic cylinders 10 that are fixed on stone storehouse supporting seat 11, and traversing hydraulic cylinder 10 is realized the feed motion of horizontal direction in 9 surface levels of stone storehouse, 9 both sides, stone storehouse are arranged vertically two columns 3, and column 3 tops are fixed wtih a crossbeam 2, form a gantry frame structure, on crossbeam 2, fix a vertical hydraulic cylinder 1, realize the feed motion of hobboing cutter vertical direction, moved cross beam 4 is equipped with in vertical hydraulic cylinder 1 below, and moved cross beam 4 inside are provided with an impact hydraulic cylinder 15, and an impact bar 14 is installed in impact hydraulic cylinder 15 belows, while carrying out the broken rock of hobboing cutter roll extrusion or the compound broken rock test of hobboing cutter roll extrusion impact, impact bar 14 lower ends of moved cross beam 4 inside connect three-dimensional force transducers 5, and hobboing cutter 7 is connected on the tool rest 6 of three-dimensional force transducer 5 belows, while carrying out similar hob abrasion test, in moved cross beam 4 bottom surfaces, similar hob abrasion module is installed, similar hob abrasion module is by similar hob abrasion module mount pad 16, oil motor 17, shaft coupling 18, coupling shaft 19, similar hobboing cutter 20, similar hobboing cutter mount pad 21 and small-range three-dimensional force transducer 22 form, small-range three-dimensional force transducer 22 is fixed on one end of similar hob abrasion module mount pad 16, similar hobboing cutter 20 is fixed on the similar hobboing cutter mount pad 21 of small-range three-dimensional force transducer 22 belows, oil motor 17 is fixed on the other end of similar hob abrasion module mount pad 16, shaft coupling 18 and coupling shaft 19 are for being coaxially connected similar hobboing cutter 20 and oil motor 17.
Specific works process is:
Rock process of the test is broken in roll extrusion: when work, first with vertical shift hydraulic cylinder 13, stone storehouse 9 is shifted onto foremost, rock sample 8 is put into stone storehouse 9, then stone storehouse 9 is retracted, drive vertical hydraulic cylinder 1 to lower feeding, give the static pressure load of 7 one vertical thrust of hobboing cutter, make hobboing cutter 7 can be pressed into rock sample 8, and make vertical shift hydraulic cylinder 13 regain simultaneously or stretch out, produce length feed speed, and the translation that makes hobboing cutter 7 can follow rock sample 8 produces rotation, the broken rock situation of research hobboing cutter 7 roll extrusion, simultaneous data-collecting card is by being contained in the suffered three-dimensional power situation on the three-dimensional force transducer 5 Real-time Obtaining hobboing cutters 7 on hob head 6, acceleration transducer is measured the vibration characteristics of hobboing cutter 7, and process in data processing software, the force-bearing situation parameter of Real-time Obtaining hobboing cutter 7, by the microscopic characteristics of high-speed digital photography system log (SYSLOG) hobboing cutter 7 fractured rocks, acoustic emission device records the formation expanding change feature of crackle.When completing after cutting at one time, can drive traversing hydraulic cylinder 10 to make stone storehouse 9 laterally advancing certain distance, can repeatedly cut in stone storehouse 9 thereby realize hobboing cutter 7.
Compound broken rock process of the test is impacted in fluid pressure type roll extrusion: when work, first with vertical shift hydraulic cylinder 13, stone storehouse 9 is shifted onto foremost, rock sample 8 is put into stone storehouse 9, then stone storehouse 9 is retracted, set the pulsatile impact load waveform that drives vertical hydraulic cylinder 1 simultaneously, the parameter such as amplitude and frequency, drive vertical hydraulic cylinder 1 to lower feeding, give the fluctuating load power of 7 one vertical thrust of hobboing cutter, make hobboing cutter 7 can be pressed into rock sample 8, and make vertical shift hydraulic cylinder 13 regain simultaneously or stretch out, produce length feed speed, and the translation that makes hobboing cutter 7 can follow rock sample 8 produces rotation, compound broken rock situation is impacted in the 7 fluid pressure type roll extrusion of research hobboing cutter, simultaneous data-collecting card is by being contained in the suffered three-dimensional power situation on the three-dimensional force transducer 5 Real-time Obtaining hobboing cutters 7 on hob head 6, acceleration transducer is measured the vibration characteristics of hobboing cutter 7, and process in data processing software, the force-bearing situation parameter of Real-time Obtaining hobboing cutter 7, by the microscopic characteristics of high-speed digital photography system log (SYSLOG) hobboing cutter 7 fractured rocks, acoustic emission device records the formation expanding change feature of crackle.When completing after cutting at one time, can drive traversing hydraulic cylinder 10 to make stone storehouse 9 laterally advancing certain distance, can repeatedly cut in stone storehouse 9 thereby realize hobboing cutter 7.
Compound broken rock process of the test is impacted in mechanical type roll extrusion: when work, first with vertical shift hydraulic cylinder 13, stone storehouse 9 is shifted onto foremost, rock sample 8 is put into stone storehouse 9, then stone storehouse 9 is retracted; Drive vertical hydraulic cylinder 1 to lower feeding, give the static pressure load of 7 one vertical thrust of hobboing cutter, make hobboing cutter 7 can be pressed into rock sample 8; Afterwards, set the parameter such as shock load waveform, amplitude and frequency of impact hydraulic cylinder 15, start impact hydraulic cylinder 15, a shock load superposes on hobboing cutter 7; And make vertical shift hydraulic cylinder 13 regain simultaneously or stretch out, produce length feed speed, and the translation that makes hobboing cutter 7 can follow rock sample 8 produces rotation, compound broken rock situation is impacted in the 7 mechanical type roll extrusion of research hobboing cutter, simultaneous data-collecting card is by being contained in the suffered three-dimensional power situation on the three-dimensional force transducer 5 Real-time Obtaining hobboing cutters 7 on hob head 6, acceleration transducer is measured the vibration characteristics of hobboing cutter 7, and processes in data processing software, the force-bearing situation parameter of Real-time Obtaining hobboing cutter 7; By the microscopic characteristics of high-speed digital photography system log (SYSLOG) hobboing cutter 7 fractured rocks, acoustic emission device records the formation expanding change feature of crackle.When completing after cutting at one time, can drive traversing hydraulic cylinder 10 to make stone storehouse 9 laterally advancing certain distance, can repeatedly cut in stone storehouse 9 thereby realize hobboing cutter 7.
Similar hob abrasion process of the test: first with vertical shift hydraulic cylinder 13, stone storehouse 9 is shifted onto foremost when work, rock sample 8 is put into stone storehouse 9, then stone storehouse 9 is retracted; Drive vertical hydraulic cylinder 1 to lower feeding, apply the power of a vertical thrust to similar hobboing cutter 20 in similar hob abrasion module, make similar hobboing cutter 20 can be pressed into the certain pile penetration of rock sample 8; Afterwards, drive oil motor 17 to rotate, make similar hobboing cutter 20 produce sliding friction effect with rock sample 8, and make vertical shift hydraulic cylinder 13 regain simultaneously or stretch out, produce length feed speed, research hob abrasion mechanism, simultaneous data-collecting card is by being contained in the suffered three-dimensional power situation on the similar hobboing cutter 20 of small-range three-dimensional force transducer 22 Real-time Obtaining on similar hob abrasion module mount pad 16, acceleration transducer is measured the vibration characteristics of similar hobboing cutter 20, and in data processing software, process the force-bearing situation parameter of the similar hobboing cutter 20 of Real-time Obtaining; By the microscopic characteristics of similar hobboing cutter 20 wear processes of high-speed digital photography system log (SYSLOG).When completing after once wearing and tearing, can drive traversing hydraulic cylinder 10 to make stone storehouse 9 laterally advancing certain distance, can repeatedly wear and tear in stone storehouse 9 thereby realize similar hobboing cutter 20.
Claims (9)
1. the broken rock characteristic test device of hard rock hob, it is characterized in that: by vertical hydraulic cylinder (1), crossbeam (2), column (3), moved cross beam (4), three-dimensional force transducer (5), hobboing cutter mount pad (6), hobboing cutter (7), rock sample (8), stone storehouse (9), traversing hydraulic cylinder (10), stone storehouse supporting seat (11), guideway (12), vertical shift hydraulic cylinder (13), impact bar (14), impact hydraulic cylinder (15), similar hob abrasion module mount pad (16), oil motor (17), shaft coupling (18), coupling shaft (19), similar hobboing cutter (20), similar hobboing cutter mount pad (21), small-range three-dimensional force transducer (22) and test macro composition.The upper stone storehouse supporting seat (11) of placing of guideway (12), stone storehouse supporting seat (11) connects one and is fixed on vertical shift hydraulic cylinder (13) on the ground, and vertical shift hydraulic cylinder (13) is realized the feed motion of stone storehouse (9) longitudinal direction, it is upper that stone storehouse (9) is placed on stone storehouse supporting seat (11), is placed with rock sample (8) in stone storehouse (9), stone storehouse (9) connects two traversing hydraulic cylinders (10) that are fixed on stone storehouse supporting seat (11), and traversing hydraulic cylinder (10) is realized the feed motion of horizontal direction in the surface level of stone storehouse (9), both sides, stone storehouse (9) are arranged vertically two columns (3), and column (3) top is fixed wtih a crossbeam (2), form a gantry frame structure, on crossbeam (2), fix a vertical hydraulic cylinder (1), realize the feed motion of hobboing cutter vertical direction, moved cross beam (4) is equipped with in vertical hydraulic cylinder (1) below, moved cross beam (4) inside is provided with an impact hydraulic cylinder (15), and an impact bar (14) is installed in impact hydraulic cylinder (15) below, while carrying out the broken rock of hobboing cutter roll extrusion or the compound broken rock test of hobboing cutter roll extrusion impact, inner impact bar (14) lower end of moved cross beam (4) connects three-dimensional force transducer (5), and hobboing cutter (7) is connected on the tool rest (6) of three-dimensional force transducer (5) below, while carrying out similar hob abrasion test, in moved cross beam (4) bottom surface, similar hob abrasion module is installed, similar hob abrasion module is by similar hob abrasion module mount pad (16), oil motor (17), shaft coupling (18), coupling shaft (19), similar hobboing cutter (20), similar hobboing cutter mount pad (21) and small-range three-dimensional force transducer (22) composition, small-range three-dimensional force transducer (22) is fixed on one end of similar hob abrasion module mount pad (16), similar hobboing cutter (20) is fixed on the similar hobboing cutter mount pad (21) of small-range three-dimensional force transducer (22) below, oil motor (17) is fixed on the other end of similar hob abrasion module mount pad (16), shaft coupling (18) and coupling shaft (19) are for being coaxially connected similar hobboing cutter (20) and oil motor (17), the electrical system of apparatus of the present invention adopts PLC to control, provide power by hydraulic system, adopt the supervisory system of industrial computer, data collecting card, three-dimensional force transducer, pressure transducer, flow sensor, acceleration transducer, scrambler, dynamic strain indicator, acoustic emission device, high-speed digital photography system composition to monitor hobboing cutter rock break-off process and wear process.
2. the broken rock characteristic test device of hard rock hob according to claim 1, is characterized in that: described vertical hydraulic cylinder (1) can apply static pressure load on hobboing cutter (7), realizes the broken rock of hobboing cutter roll extrusion.
3. the broken rock characteristic test device of hard rock hob according to claim 1, it is characterized in that: described vertical hydraulic cylinder (1) adopts servocontrol, can on hydraulic cylinder (1), apply pulse, waveform, frequency and the amplitude parameter of pressure all can regulate, and realizes fluid pressure type roll extrusion and impacts compound broken rock.
4. the broken rock characteristic test device of hard rock hob according to claim 1, it is characterized in that: described impact hydraulic cylinder (15) can apply impulsive force on impact bar (14), waveform, frequency and the amplitude parameter of impulsive force all can regulate, and realizes mechanical type roll extrusion and impacts compound broken rock.
5. the broken rock characteristic test device of hard rock hob according to claim 1, it is characterized in that: described similar hob abrasion module is used for simulating similar hob abrasion process, vertical hydraulic cylinder (1) drives the similar hobboing cutter (20) in similar hob abrasion module to be pressed into after rock, primer fluid pressure motor (17), oil motor drives similar hobboing cutter (20) rotation by shaft coupling (18) and coupling shaft (19), strengthen the sliding rate of similar hobboing cutter (20) and rock sample (8), reach the object of accelerated wear test.
6. the broken rock characteristic test device of hard rock hob according to claim 1, it is characterized in that: described column (3) coordinates with moved cross beam (4), moved cross beam (4) is play the guiding role, prevent that vertical hydraulic cylinder (1) is subject to Moment simultaneously.
7. the broken rock characteristic test device of hard rock hob according to claim 1, it is characterized in that: described three-dimensional force transducer (5) and small-range three-dimensional force transducer (22) are the sensor that can measure three direction power, suffered three-dimensional power situation when the former is used for measuring the broken rock of hobboing cutter (7), suffered three-dimensional power situation when the latter is used for measuring similar hobboing cutter (20) wearing and tearing.
8. the broken rock characteristic test device of hard rock hob according to claim 1, it is characterized in that: there is external displacement transducer described hydraulic cylinder (1), (10) and (13), import and export on oil circuit pressure transducer and flow sensor are housed, be used for measuring hydraulic cylinder (1), pressure, speed and the hobboing cutter (7) of (10) and (13) and the degree of depth of similar hobboing cutter (20) injection rock sample (8).
9. the broken rock characteristic test device of hard rock hob according to claim 1, it is characterized in that: on the import and export oil circuit of described oil motor (17), pressure and flow sensor have been installed, moment of torsion and rotating speed while being used for measuring similar hobboing cutter (20) wearing and tearing.
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