CN105424892A - Intelligent grouting test system based on triangle rotor grouting pump and test method thereof - Google Patents
Intelligent grouting test system based on triangle rotor grouting pump and test method thereof Download PDFInfo
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- CN105424892A CN105424892A CN201510980889.9A CN201510980889A CN105424892A CN 105424892 A CN105424892 A CN 105424892A CN 201510980889 A CN201510980889 A CN 201510980889A CN 105424892 A CN105424892 A CN 105424892A
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Abstract
The invention discloses an intelligent grouting test system based on a triangle rotor grouting pump and a test method thereof. The system includes a grouting pump. The grouting pump includes a pump shell which is provided with a slurry inlet and a slurry outlet. A triangle rotor is arranged inside a hollow chamber, sleeves an eccentric block of an input shaft and rotates to achieve expansion or reduction of a working chamber. The rotor is matched with the input shaft through clearance fit. A fixed gear is fixedly disposed in the pump shell. A gear ring, which is matched with the fixed gear, is arranged in the middle of the rotor and is fixedly connected to the rotor. The rotor in the grouting pump is connected to a driving apparatus. The slurry inlet of the grouting pump is connected to a slurry storage barrel. The slurry outlet is connected to a test bench through an outlet pipe. A pressure detection device and a liquid flow meter are arranged on a wall of the outlet pipe and are separately connected to a controller which is connected to the driving apparatus. The system is simple in operation, is convenient to use, is suitable for intelligent control in tunnel grouting and has important practical significance on seepage proofing and reinforcement in underground engineering.
Description
Technical field
The present invention relates to side slope protection, be specifically related to a kind of intelligent grouting test system based on three-apexed rotor grouting pump and test method thereof.
Background technology
China's underground space development is rapid, can meet with gushing water and to dash forward the geologic hazards such as mud, carry out bringing many problems, have a strong impact on construction speed to project time in project is carried out.In order to prevent and treat the impact of severe geologic media, people take many means, and slip casting has become the technical way solving these underground gushing waters and reinforce weak rocks soil layer.Be widely used in now many industries such as mine, water conservancy and hydropower, traffic, building, have that cost is low, environmental suitability is strong, slurries setting strength is high, the advantage such as simple of constructing, its effect is subject to extensive accreditation.Along with the widespread use of slip casting, slip casting has had no small development in material, technology, theory etc.Current slip casting has developed into multi-disciplinary cross-application subjects such as comprising rock-soil mechanics, permeation fluid mechanics, mechanical automation, molecular material.
Along with the development of slip casting in technology, theory and material, the application of slip casting in construction demonstrates scientific further.Utilize the design of the theoretical direction mortar depositing construction of science, utilize sophisticated equipment and technology to ensure speed of application, utilize suitable injecting paste material to ensure construction effect, this is the feature of modern science slip casting.During mortar depositing construction design, greatly mainly with final grouting pressure or expection grouting amount as terminating the construction reference of slip casting.This is that the grouting mode of standard has lacked dynamic process control with result, often causes the unsaturated or oversaturated operating mode of grouting amount.Different geologic conditions has different requirements to the slurry flow of slip casting and the change of grouting pressure, thus result in different consolidation effects.According to different operating modes as crack rock, molten chamber, fault belt etc., in grouting design, the selection of the flow of slurries, grouting pressure is not identical, so the coupling control technology of pressure in slip casting process and flow seems particularly important.
The Dynamic controlling of slip casting is mainly realized by grouting pump and control system.Most widely used in slip casting field is piston pump in volumetric pump and pneumatic diaphragm pump.Wherein piston pump can be divided into single cylinder and multi-cylinder piston pump, and the piston pump housing is large, and easy break-down, and detachable maintaining comparatively bothers, and exports pulse large, easily causes man-made further destroy to soft stratum, can produce larger grouting pressure, but efficiency is not high.And pneumatic diaphragm pump matches equipment air compressor machine volume greatly, should not be used for underground complicated on-the-spot, and noise is large, pulse is large, easy in equally rock stratum formation man-made further destroy.Most importantly existing grouting pump system integration degree is low, lacks kinetic-control system, and is not easy to repacking.
Summary of the invention
The object of this invention is to provide a kind of scientific, intelligentized intelligent grouting test system based on three-apexed rotor grouting pump and test method thereof.
In order to reach above-mentioned purpose, the present invention adopts following technical scheme:
Based on an intelligent grouting test system for three-apexed rotor grouting pump, comprise grouting pump, this grouting pump comprises pump case, is provided with cavity in pump case, and pump case is provided with injection point and serum outlet; In cavity, be provided with three-apexed rotor, the eccentric block place that rotor is enclosed within input shaft rotates with the increase or the reduction that realize working chamber; Described rotor and input shaft clearance fit, be installed with fixed gear in pump case, and be provided with the gear ring coordinated with fixed gear in the middle part of rotor, gear ring is fixedly connected with rotor; Grouting pump internal rotor is connected with drive unit, the injection point of grouting pump connects slurry storing tank, serum outlet is connected to testing table by outlet, outlet tube wall is provided with pressure-detecting device and liquid flowmeter, pressure-detecting device is connected separately with controller respectively with liquid flowmeter, and controller is connected with drive unit.
Further, described drive unit comprises motor, and motor via reducer is connected with described rotor, and motor is by driver control, and described controller is PLC scrambler.
Further, each described mechanism is all arranged on moveable dolly.
Further, described injection point and serum outlet respectively have two, and injection point and serum outlet are crisscross arranged, and four mouths are symmetrical arranged up and down.
Further, described pump case comprises annular or a Long Circle sidewall, and the both sides of sidewall are respectively equipped with capping, are provided with O-ring seal between described rotor and described capping.
Further, three limits of described rotor are cambered outwards camber line.
Further, described rotor and described pump case form 3 working chambers, and telescopic hard sealing strip is equipped with seal operation working chamber in the drift angle place of described rotor.
Further, arrange surplus valve at described outlet place and be connected to overflow ladle, described slurry storing tank is divided into two, and in two slurry storing tanks, slurries are different, and the two connects an injection point separately.
The test method of described pilot system, concrete steps are as follows:
1) choose suitable filling medium and be placed in testing table, and in slurry storing tank, lay in suitable slurries;
2) until pressure-detecting device detect pressure reach and rated pressure time, surplus valve is opened, and unnecessary slurries enter overflow ladle;
3) controller reduces the speed of drive unit according to blas, and then reduces flow rate of grouting;
4) pressure drop, surplus valve cuts out, and continues grouting test;
5) if pressure exceedes the rated pressure of setting again, step 2 is repeated) and step 3);
6) after slip casting completes, dismantle and clean each mechanism, terminating test.
Slurries in described slurry storing tank are cement and water glass, and the ratio of the two is 1:1.
Principle of work of the present invention is: the rotation of rotor divides for rotates rotor driven by input shaft and to rotate around input shaft and the gear motion of ring gear and fixed gear completes rotation two parts of rotor.The geometric center of rotor is while the revolution of input shaft center, and rotor itself is again around self geometric center rotation.When rotor turns, the ring gear centered by rotor center engages with the fixed gear centered by input shaft center, and fixed gear and pump case geo-stationary, be fixed on pump case.Rotor and capping divide into three not connected working chambers sidewall, and the volume change being changed three working chambers by the compound motion of rotor is finished the work, and namely rotor completes the rotation of one-period, and pump completes six midges, six plasma discharge processes, power is provided by input shaft, because of ring gear, fixed gear is meshed, ring gear is fixed on rotor, fixed gear and sidewall geo-stationary, ring gear is 3:2 with the ratio of the number of teeth of fixed gear, above-mentioned kinematic relation makes the movement locus of rotor apex like oval, rotor is divided into three chambeies that work alone sidewall, three working chambers successively complete into slurry and plasma discharge separately, as A to G process in Fig. 3 be in Fig. 4 indication injection point d start a working chamber of oil-feed enter to starch plasma discharge process, this process rotor rotation half-turn, therefore the rotating speed of input shaft is 3 times of rotor rotational velocity, so can draw: input shaft turns around, what can complete two working chambers enters slurry and plasma discharge process.
Based on the intelligent grouting test system of three-apexed rotor pump, and two stock inlets can be provided, make it possible to biliquid and fully mix in pipeline, be more convenient for two fluid grouting.
The invention has the beneficial effects as follows:
1) three-apexed rotor is divided into three separate space sidewall, and three spaces successively complete into slurry and plasma discharge separately, and three-apexed rotor is from circling, and complete three turnover slurries, flow rate of grouting is large; Eccentric revolution grouting pump, structure is simple, and volume reduces, and easily, debugging is convenient in maintenance.
2) due to stratal configuration with the complicacy of slip casting condition, the intelligent filling system regulated by the relevance of grouting pressure and flow, can better be optimized mortar depositing construction design, saves construction material, ensure mortar depositing construction effect.Native system is simple to operate, easy to use, is applicable to the intelligentized control method of tunnel grouting, for underground works water-impervious and add intrinsic great practical significance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is side view of the present invention;
Fig. 3 is principle of the invention control chart;
Fig. 4 is pump body structure schematic diagram;
Fig. 5 is rotor schematic diagram;
Fig. 6 is ring gear schematic diagram;
Fig. 7 is input shaft schematic diagram;
Fig. 8 is working chamber turnover slurry process schematic.
Wherein: 1--dolly, 2--servomotor, 3--reductor, 4-grouting pump, 5--driver, 6--PLC scrambler, 7-10--retaining valve, the threeway of 11--pipeline, 12--pressure-detecting device, 13--liquid flowmeter, 14--surplus valve, 15/16--pulp-inlet pipe, 17-18--grout outlet, 19--pulp house steward, 20--overflow pipe;
21--nut; 22--bolt; Capping before 23--; 24--sidewall; 25--rear seal-cover; 26--rotor; 27--sidewall inwall; 28--ring gear; 29--fixed gear; 30--input shaft; 31--bearing; 32-bearing (ball) cover.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, clear, complete description is carried out to the technical scheme in the embodiment of the present invention.
As shown in Figure 1, 2, the long 1.2m of dolly 1, wide 0.8m, high 0.7m, there are four supporting legs bottom are equipped with the universal wheel of 4 band brakes, and all equipment are all integrated in dolly flat board.Servomotor 2 and reductor 3 are bound up by shaft coupling and three-apexed rotor pump 4, being all bolted in flat board, making three center point-blank by regulating highly-filled piece bottom three.Retaining valve 9,10 is attached at two injection point places of grouting pump respectively, and retaining valve 7,8 is bound up on two serum outlet places respectively, and retaining valve connects with pulp-inlet pipe 15,16 or grout outlet 17,18.Pipeline threeway 11 makes two grout outlets become a pulp house steward 19, conveniently records measurement.Pressure-detecting device 12 (tensimeter) and liquid flowmeter 13 are attached to pipeline pulp front and rear, adopt mechanical connection to seal.Surplus valve 14 is attached to bypass duct front portion, and bypass line and main line adopt threeway to connect.PLC scrambler 6 by self the pressure transducer with being attached to main line measure main line pressure, and record data.Driver 5 is fixed on the left of servomotor 2, is connect respectively by control data line with servomotor 2 and PLC scrambler 6.
Main line pressure is monitored by PLC scrambler 6, control signal is exported in conjunction with construction reference requirement and according to the change of pressure, through driver 5, driver 5 controls the output speed of servomotor 2 according to superior command, thus reduce or increase delivery rate and pressure, realize the quantified controlling to flow rate of grouting and pressure.
Three-apexed rotor grouting pump 4 injection point is provided with two, can realize two fluid grouting technology, slurries ratio 1:1, and mixing is comparatively even, is conducive to next step conveying of slurries.
Retaining valve 7-10 totally 4, according to line pressure and traffic requirement, selects copper spring retaining valve.Pressure requirements>=2Mpa, flow>=0.5m
3/ h.Be connected with the pump housing and pipeline by screw thread, and use suitable raw material band to seal at screw thread place.
Be attached to the pressure signal sensor setting of PLC scrambler 6 after overflow branch road, the size of main line pressure can be measured in real time, and live signal is passed to main control unit-PLC scrambler 6.
Full packages formula liquid flowmeter 13 is arranged on main line end, can measure and record main line slurries and to add up flow and real-time traffic, selection requirements flow>=2m
3/ h.
Surplus valve 14 is arranged on tributary pipeline leading portion, regulates oil pressure relief value, adjustable extent 0.5Mpa ~ 2Mpa by arranging this device pressure coefficient.Its tributary tube outlet is placed in discarded slurries gathering barrel, preventing pollution surrounding environment.
Wherein, as Figure 4-8, grouting pump, comprises rotor 26, sidewall 24, input shaft 30, ring gear 28, fixed gear 29, front capping 23, rear seal-cover 25, fastening bolt 22, bearing 31, bearing (ball) cover 32.
The three-apexed rotor 26 of eccentric revolution grouting pump is coordinated with input shaft 30 eccentric part by axle sleeve; Input shaft 30 input end is assembled together with front capping 23 by bearing 11 and end cap 32; Input shaft 10 other end is assembled together by axle sleeve and rear seal-cover 25; Former and later two end faces are fixed on sidewall 4 by fastening bolt 22.It is inner that ring gear 28 is embedded in rotor 26, and fixed gear 29 is embedded on front end face.Rotor 26 two sides are equipped with wear-resistant seal ring, to realize the sealing of rotor 26 side and front and back capping; Rotor 26 3 sharp corners are provided with groove, and groove coordinates the sealing realizing rotor 26 and working chamber with spring sealed.
Sidewall 24 inner chamber molded line is the outer trochoid of two arcs that inscribe generative methods is formed, and the outline line of rotor 26 is interior envelopes of sidewall molded line.
Rotate around input shaft 10 with motor driven rotor 26, rotor 26 limits around input shaft 10 rotation by ring gear 8 and fixed gear 9 again, two kinds of motion synthesis are the approximate ellipse of rotor 26 vertex trajectories, completing suction and the discharge of slurries, completing conveying slurries by changing each working chamber volume change.Ring gear 28 is 3:2 with the ratio of the number of teeth of fixed gear 29, realizes motor (input shaft 10) and often circles, rotor 26 turns 1/3 week.
Three-apexed rotor 26 is divided into three separate space sidewall 24, and sidewall inwall 27 is hard, and three spaces successively complete into slurry and plasma discharge separately, and three-apexed rotor 26, from circling, completes three turnover slurries.According to above kinematic relation, the rotating speed of input shaft 30 is 3 times of rotor 26 rotational velocity, and these are completely different with the kinematic relation of input shaft 1:1 from the piston of reciprocating motion type pump.
Driven by motor input shaft 30 rotates, and input shaft 30 drives three-apexed rotor 26 to rotate by eccentric part, and the ring gear 28 inlayed due to three-apexed rotor 26 inside engages each other, so three-apexed rotor 26 produces a kind of rotation with fixed gear 29.The geometric center of three-apexed rotor 26 is while the revolution of input shaft 30 center, and three-apexed rotor 26 itself is again around self geometric center rotation.
In addition, rotor 26 is coordinated with the eccentric block place of input shaft 30 by axle sleeve; The input end of input shaft 30 is assembled together by bearing and bearing (ball) cover 32, and front capping 23 coordinates with sidewall 24, is fixed before bearing by bearing (ball) cover 32; The other end of input shaft 30 is assembled together by bearing and rear bearing end cap, and rear bearing end cap is fixed by fastening bolt and rear seal-cover 25.Front capping 23 is fixed on sidewall 24 by fastening bolt with rear seal-cover 25.It is inner that ring gear 28 is embedded in rotor 26, and fixed gear 29 is embedded in front capping 23.The side of rotor 26 is equipped with wear-resistant seal ring, to realize the sealing of rotor 26 side and front and back capping; Rotor 26 3 sharp corners are provided with groove, and groove is equipped with spring sealed to realize the sealing of rotor 26 and working chamber.
As shown in Figure 6, rotor 26 is in rotation process, and shown painted efforts chamber is long-pending to increase, by A mouth of pipe midge, when in working chamber, slurries are on the increase position 4, shown working chamber volume is maximum, along with rotor is rotated further, working chamber volume reduces gradually, and slurries are discharged by the B mouth of pipe, during to position 6, working chamber volume is minimum, then continues, by D mouth of pipe midge, to be discharged immediately by mouth of pipe C.Rotor completes the turnover slurry of three working chambers altogether in a rotation period.
Using method based on the intelligent grouting test system of pressure and flow fuzzy control: carry out assembling pilot system by Fig. 1-3, tests the working order of each equipment and this installs pipes and junction sealing, after treating running-in test, carries out grouting test.Choose suitable filling medium and be placed in testing table, and in slurry storing tank, lay in suitable slurries, can be cement: water glass=1:1.Grouting test starts, by the slowly injection of slurries, the pressure of pressure-detecting device 12 and the accumulation reading of slurry stream gauge progressively increase, until pressure reach surplus valve 14 rated pressure is set time, work opened by surplus valve 14, unnecessary slurries enter in overflow ladle by tributary pipeline 20, meanwhile by the PLC scrambler of pressure signal sensor acknowledge(ment) signal, according to the blas inputted before grouting test, the rotating speed of servomotor 2 is regulated to diminish by driver 5, and then flow rate of grouting is declined, because flow and pressure are coupling parameter, pressure declines thereupon, surplus valve 14 cuts out, continue grouting test.Until pressure again reach surplus valve 14 set rated pressure time, system as above works again, completes gradient grouting test, the Changing Pattern of slip casting gradient is by inputting the program setting of PLC scrambler 6, after program process completes, dismounting is washing test system and device also, terminates experiment.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1., based on an intelligent grouting test system for three-apexed rotor grouting pump, it is characterized in that, comprise grouting pump, this grouting pump comprises pump case, is provided with cavity in pump case, and pump case is provided with injection point and serum outlet; In cavity, be provided with three-apexed rotor, the eccentric block place that rotor is enclosed within input shaft rotates with the increase or the reduction that realize working chamber; Described rotor and input shaft clearance fit, be installed with fixed gear in pump case, and be provided with the gear ring coordinated with fixed gear in the middle part of rotor, gear ring is fixedly connected with rotor; Grouting pump internal rotor is connected with drive unit, the injection point of grouting pump connects slurry storing tank, serum outlet is connected to testing table by outlet, outlet tube wall is provided with pressure-detecting device and liquid flowmeter, pressure-detecting device is connected separately with controller respectively with liquid flowmeter, and controller is connected with drive unit.
2. pilot system as claimed in claim 1, it is characterized in that, described drive unit comprises motor, and motor via reducer is connected with described rotor, and motor is by driver control, and described controller is PLC scrambler.
3. pilot system as claimed in claim 1, it is characterized in that, each described mechanism is all arranged on moveable dolly.
4. the pilot system as described in claim 1 or 2 or 3, it is characterized in that, described injection point and serum outlet respectively have two, and injection point and serum outlet are crisscross arranged, and four mouths are symmetrical arranged up and down.
5. pilot system as claimed in claim 4, is characterized in that, described pump case comprises annular or a Long Circle sidewall, and the both sides of sidewall are respectively equipped with capping, are provided with O-ring seal between described rotor and described capping.
6. the pilot system as described in claim 1 or 5, is characterized in that, three limits of described rotor are cambered outwards camber line.
7. the pilot system as described in claim 1 or 2 or 5, is characterized in that, described rotor and described pump case form 3 working chambers, and telescopic hard sealing strip is equipped with seal operation working chamber in the drift angle place of described rotor.
8. pilot system as claimed in claim 4, it is characterized in that, arrange surplus valve at described outlet place and be connected to overflow ladle, described slurry storing tank is divided into two, and in two slurry storing tanks, slurries are different, and the two connects an injection point separately.
9. the test method of the pilot system according to any one of claim 1-8, is characterized in that, concrete steps are as follows:
1) choose suitable filling medium and be placed in testing table, and in slurry storing tank, lay in suitable slurries;
2) until pressure-detecting device detect pressure reach and rated pressure time, surplus valve is opened, and unnecessary slurries enter overflow ladle;
3) controller reduces the speed of drive unit according to blas, and then reduces flow rate of grouting;
4) pressure drop, surplus valve cuts out, and continues grouting test;
5) if pressure exceedes the rated pressure of setting again, step 2 is repeated) and step 3);
6) after slip casting completes, dismantle and clean each mechanism, terminating test.
10. test method as claimed in claim 9, it is characterized in that, the slurries in described slurry storing tank are cement and water glass, and the ratio of the two is 1:1.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510980889.9A CN105424892B (en) | 2015-12-23 | 2015-12-23 | A kind of intelligent grouting test system and its test method based on three-apexed rotor grouting pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510980889.9A CN105424892B (en) | 2015-12-23 | 2015-12-23 | A kind of intelligent grouting test system and its test method based on three-apexed rotor grouting pump |
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| CN105424892B CN105424892B (en) | 2017-12-12 |
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| CN201354734Y (en) * | 2009-02-23 | 2009-12-02 | 谭立平 | Triangle rotor type delivery pump |
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