CN203939503U - A kind of TBM propulsion hydraulic system of double mode switching - Google Patents
A kind of TBM propulsion hydraulic system of double mode switching Download PDFInfo
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- CN203939503U CN203939503U CN201420289469.7U CN201420289469U CN203939503U CN 203939503 U CN203939503 U CN 203939503U CN 201420289469 U CN201420289469 U CN 201420289469U CN 203939503 U CN203939503 U CN 203939503U
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Abstract
The utility model discloses a kind of TBM propulsion hydraulic system of double mode switching.Comprise oil sources, two four-way electromagnetic reversing valves that the propulsion die that two structures are identical and implementation pattern switch.Four propulsion cylinder common control systems in double mode, in the time of straight line tunnel excavation operating mode, control easily, solve the control challenge that long-time grouping control brings, four oil cylinders equal and opposite in direction of exerting oneself, strictly ensure to make a concerted effort along girder direction, eliminated the error that departs from desired trajectory that independent control brings; Left and right module grouping control mode in double mode, significantly reduce TBM at tunnel bend place, and internal force when tuning, make with joint efforts along girder direction, solve the problem that the damage problem of TBM mechanism part that oil cylinder propulsive force imbalance brings and Hydraulic Elements and tunnel depart from predetermined curve.
Description
Technical field
The utility model relates to TBM propulsion hydraulic system, relates in particular to and realizes four hydraulic cylinder co-controllings and the double mode switching TBM of the one propulsion hydraulic system that divides into groups to control.
Background technology
Hard rock tunnel development machine (Tunnel Boring Machine is called for short TBM).TBM adopts the broken rock of mechanical type, makes cutterhead compress rock by propulsion system, and cutterhead rotates under the driving of variable-frequency motor or hydraulic motor, broken under the cutter squeezing action of rock on cutterhead, thereby makes tunnel one-shot forming.TBM be collection constructing tunnel excavation, muck removal, dust removal by ventilation, lay tunnel path and geomantic omen electricity extends one, have fast, the construction characteristic such as high-quality, safety, environmental protection, realize the big machinery equipment of the factory operation of the constructing tunnel of growing up.
Open TBM is widely used in hard rock geological conditions, and wherein the TBM of horizontal support is more representative, applies also more extensive.TBM propulsion system mainly provides thrust in cutterhead rock break-off process, and pulling force is provided in the time that cutterhead retreats, and realizes propulsion cylinder and regain fast in the process of changing step.
Current TBM propulsion system, provide together thrust by four hydraulic cylinders, and four hydraulic cylinder co-controllings in parallel, therefore four propelling hydraulic cylinders are exerted oneself identical, in practice of construction, especially at bend place because four hydraulic cylinders are exerted oneself identical, make to make a concerted effort not along girder direction, cross bearing pin easily occurs to be damaged, rail damage between saddletree and girder is serious, girder welding seam breaking, the tunnel excavating departs from predetermined curve, the inner a series of unfavorable phenomenon that produces the harm Hydraulic Elements such as air pocket and local super-pressure of hydraulic propelling system.Therefore, current TBM propulsion system has reduced the application life of TBM complete machine and the excavation precision in tunnel.
Utility model content
For overcoming in existing TBM work progress, especially the tunnel in curved tunnel digging process departs from predetermined curve, and TBM mechanical component easy damaged, the problem such as in propulsion system Hydraulic Elements are fragile, take into account four hydraulic cylinder parallel connections simultaneously, control simple, and in straight line tunnel excavation process the higher advantage of precision, the purpose of this utility model is to provide a kind of TBM propulsion hydraulic system of double mode switching.
The technical scheme that the utility model technical solution problem adopts is:
The utility model comprises oil sources, two four-way electromagnetic reversing valves that the propulsion die that two structures are identical and implementation pattern switch;
Each propulsion die comprises: proportional pressure-reducing valve, proportional throttle valve, 3-position 4-way solenoid operated directional valve, two propelling cylinders in parallel, pressure meter, pressure sensor and overflow valves, the oil-in of proportional pressure-reducing valve is connected with the second one way valve oil-out in oil sources, the oil-out of proportional pressure-reducing valve and proportional throttle valve oil-in be connected, the oil-out of proportional throttle valve is communicated with the oil inlet P 9 of 3-position 4-way solenoid operated directional valve, the oil return inlet T 9 of 3-position 4-way solenoid operated directional valve is connected with fuel tank, 3-position 4-way solenoid operated directional valve the first actuator port A9 propelling cylinder rod chamber in parallel with two connected, the rodless cavity of the second actuator port B9 propelling cylinder in parallel with two is connected, pressure meter, pressure sensor is all connected with the rodless cavity of propelling cylinder, the oil-in of overflow valve and the rodless cavity of propelling cylinder are connected, the oil-out of overflow valve and fuel tank are connected,
The annexation of the propulsion die that two four-way electromagnetic reversing valves are identical with two structures is: the oil inlet P 13 of the rodless cavity of the propelling cylinder of a side parallel connection and two four-way electromagnetic reversing valves is connected, the rodless cavity of the first actuator port A13 of two four-way electromagnetic reversing valves propelling cylinder in parallel with opposite side is connected, the oil return inlet T 13 of the rod chamber of the propelling cylinder of one side parallel connection and two position and four-way reversing valves is connected, and the rod chamber of the second actuator port B13 of two position and four-way reversing valves propelling cylinder in parallel with opposite side is connected.
Described oil sources comprises: motor, yielding coupling, variable pump, strainer, the first one way valve, the second one way valve, safety valve and fuel tank; Motor is connected by yielding coupling and variable pump, the oil-in of variable pump is connected with fuel tank, the oil-out of variable pump is connected with the oil-in of strainer, the first one way valve is connected across between the oil-in of strainer and the oil-out of strainer, the oil-in of the second one way valve and the oil-out of strainer are connected, the oil-out of the second one way valve is connected with the oil-in of safety valve, and the oil-out of safety valve is connected with fuel tank.
The utility model is compared with background technology, and the beneficial effect having is:
1) four propulsion cylinder common control systems in double mode, in the time of straight line tunnel excavation operating mode, control easily, solve the control challenge that long-time grouping control brings, four oil cylinders equal and opposite in direction of exerting oneself, strictly ensure to make a concerted effort along girder direction, eliminated the error that departs from desired trajectory that independent control brings.
2) the left and right module grouping control mode in double mode, significantly reduce TBM at tunnel bend place, and internal force when tuning, make with joint efforts along girder direction, solved the problem that the damage problem of TBM mechanism part that oil cylinder propulsive force imbalance brings and Hydraulic Elements and tunnel depart from predetermined curve.
Brief description of the drawings
Fig. 1 is the TBM propulsion hydraulic system structural representation of double mode switching.
In figure: 1. motor, 2. yielding coupling, 3. variable pump, 4. strainer, 5. the first one way valve, 6. the second one way valve, 7. proportional pressure-reducing valve, 8. proportional throttle valve, 9. 3-position 4-way solenoid operated directional valve, 10. propelling cylinder, 11. pressure meters, 12. pressure sensors, 13. two-position four-way solenoid operated directional valves, 14. overflow valves, 15. safety valves, 16. fuel tanks.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Figure 1, the utility model comprises oil sources, two four-way electromagnetic reversing valves 13 that the propulsion die that two structures are identical and implementation pattern switch;
Each propulsion die comprises: proportional pressure-reducing valve 7, proportional throttle valve 8,3-position 4-way solenoid operated directional valve 9, two propelling cylinders in parallel 10, pressure meter 11, pressure sensor 12 and overflow valves 14, the oil-in of proportional pressure-reducing valve 7 is connected with the second one way valve 6 oil-outs in oil sources, 8 oil-in of the oil-out of proportional pressure-reducing valve 7 and proportional throttle valve is connected, the oil-out of proportional throttle valve 8 is communicated with the oil inlet P 9 of 3-position 4-way solenoid operated directional valve 9, the oil return inlet T 9 of 3-position 4-way solenoid operated directional valve 9 is connected with fuel tank, 3-position 4-way solenoid operated directional valve 9 first actuator port A9 propelling cylinder 10 rod chambers in parallel with two are connected, the rodless cavity of the second actuator port B9 propelling cylinder 10 in parallel with two is connected, pressure meter 11, pressure sensor 12 is all connected with the rodless cavity of propelling cylinder 10, the rodless cavity of the oil-in of overflow valve 14 and propelling cylinder 10 is connected, the oil-out of overflow valve 14 and fuel tank 16 are connected,
The annexation of the propulsion die that two four-way electromagnetic reversing valves 13 are identical with two structures is: the rodless cavity of the propelling cylinder 10 of a side parallel connection and the oil inlet P 13 of two four-way electromagnetic reversing valves 13 are connected, the rodless cavity of the first actuator port A13 of two four-way electromagnetic reversing valves 13 propelling cylinder in parallel with opposite side is connected, the oil return inlet T 13 of the rod chamber of the propelling cylinder of one side parallel connection and two position and four-way reversing valves 13 is connected, and the rod chamber of the second actuator port B13 of two position and four-way reversing valves propelling cylinder in parallel with opposite side is connected.
Described oil sources comprises: motor 1, yielding coupling 2, variable pump 3, strainer 4, the first one way valve 5, the second one way valve 6, safety valve 15 and fuel tank 16; Motor 1 is connected by yielding coupling 2 and variable pump 3, the oil-in of variable pump 3 is connected with fuel tank 16, the oil-out of variable pump 3 is connected with the oil-in of strainer 4, the first one way valve 5 is connected across between the oil-in of strainer 4 and the oil-out of strainer 4, the oil-out of the oil-in of the second one way valve 6 and strainer 4 is connected, the oil-out of the second one way valve 6 is connected with the oil-in of safety valve 15, and the oil-out of safety valve 15 is connected with fuel tank 16.
Operating principle of the present utility model is as follows:
TBM is at excavation curved tunnel, or need when slight tuning in the time of linear advancement, the electromagnet dead electricity of two-position four way change valve 13, the next (right position) connecting system of reversal valve 13, the oil cylinder of left and right propulsion die is separated, four propelling cylinders are divided into two groups of left and right, control respectively, wherein the control of left propulsion die is: motor 1 obtains electric startup, by yielding coupling 2, moment of torsion is passed to variable pump 3, variable pump 3 rotates, by inlet port from fuel tank oil suction, the pressure oil that variable pump 3 pumps enters the second one way valve 6 through strainer 4, first one way valve 5 in parallel with strainer 4 shields to strainer 4, when strainer 4 pressure at two ends when too high the first one way valve 5 open, thereby reduce the pressure at strainer two ends, the second one way valve 6 is to pumping up protective effect, prevent that buffer brake oil from producing and impacting pump.The pressure oil flowing out from the second one way valve 6 enters the entrance of proportional pressure-reducing valve 7, inputs different signals by comparative example reducing valve 7, regulates in real time the pressure of propelling cylinder rodless cavity.Pressure oil enters the import of proportional throttle valve 8 from the outlet of proportional pressure-reducing valve 7, passing ratio choke valve 8 is controlled the flow that passes into propelling cylinder rodless cavity, thereby controls fltting speed.The pressure oil flowing out from proportional throttle valve 8 enters 3-position 4-way solenoid operated directional valve 9, when 3-position 4-way solenoid operated directional valve 9 right side electromagnet obtain when electric, 9 right connecting systems of 3-position 4-way solenoid operated directional valve, pressure oil directly enters propelling cylinder 10 rodless cavities, the piston rod of propelling cylinder 10 stretches out, propelling cutterhead advances, when 3-position 4-way solenoid operated directional valve 9 left side electromagnet obtain when electric, the left position connecting system of 3-position 4-way solenoid operated directional valve 9, pressure oil enters the rod chamber of propelling cylinder 10, cutterhead is retreated or complete the process of changing step.Pressure meter 11 is connected on the rodless cavity of propelling cylinder 10, shows the pressure of propulsion cylinder 10 rodless cavities.Pressure sensor 12 is connected on the rodless cavity of propelling cylinder 10 equally, and pressure signal is returned to control system.Overflow valve 14 is connected on the rodless cavity of propelling cylinder 10, and the maximum working pressure of restriction rodless cavity, plays safety effect.The control procedure of the control of right propulsion die left propulsion die as previously described, by regulating left and right propulsion die proportional pressure-reducing valve separately, make making a concerted effort along girder direction of left and right propulsion cylinder, thereby eliminate the internal force problem of bringing due to co-controlling, alleviate the damage to TBM member, improve the excavation precision in tunnel.
TBM is in the time of linear advancement, the electromagnet of two-position four-way solenoid operated directional valve 13 obtains electric, upper (left position) connecting system of two-position four-way solenoid operated directional valve 13, realize the parallel connection of four oil cylinders, four oil cylinders share the proportional pressure-reducing valve 7 of left propulsion die, proportional throttle valve 8, 3-position 4-way solenoid operated directional valve 9 is realized co-controlling, concrete grammar is identical with the independent control method of the left propulsion die in foregoing grouping control, solve like this problem that the problem of linear advancement operating conditions complexity of the time that is in the great majority and the excavation track that brings due to departure depart from predetermined curve.
Claims (2)
1. a TBM propulsion hydraulic system for double mode switching, is characterized in that: comprise oil sources, two four-way electromagnetic reversing valves (13) that the propulsion die that two structures are identical and implementation pattern switch;
Each propulsion die comprises: proportional pressure-reducing valve (7), proportional throttle valve (8), 3-position 4-way solenoid operated directional valve (9), two propelling cylinders in parallel (10), pressure meter (11), pressure sensor (12) and overflow valve (14), the oil-in of proportional pressure-reducing valve (7) is connected with the second one way valve (6) oil-out in oil sources, the oil-out of proportional pressure-reducing valve (7) is connected with the oil-in of (8) of proportional throttle valve, the oil-out of proportional throttle valve (8) is communicated with the oil inlet P 9 of 3-position 4-way solenoid operated directional valve (9), the oil return inlet T 9 of 3-position 4-way solenoid operated directional valve (9) is connected with fuel tank, 3-position 4-way solenoid operated directional valve (9) first actuator port A9 propelling cylinder (10) rod chamber in parallel with two connected, the rodless cavity of the second actuator port B9 propelling cylinder (10) in parallel with two is connected, pressure meter (11), pressure sensor (12) is all connected with the rodless cavity of propelling cylinder (10), the rodless cavity of the oil-in of overflow valve (14) and propelling cylinder (10) is connected, the oil-out of overflow valve (14) and fuel tank (16) are connected,
The annexation of the propulsion die that two four-way electromagnetic reversing valves (13) are identical with two structures is: the rodless cavity of the propelling cylinder (10) of a side parallel connection and the oil inlet P 13 of two four-way electromagnetic reversing valves (13) are connected, the rodless cavity of the first actuator port A13 of two four-way electromagnetic reversing valves (13) propelling cylinder in parallel with opposite side is connected, the oil return inlet T 13 of the rod chamber of the propelling cylinder of one side parallel connection and two position and four-way reversing valves (13) is connected, and the rod chamber of the second actuator port B13 of two position and four-way reversing valves propelling cylinder in parallel with opposite side is connected.
2. the TBM propulsion hydraulic system of a kind of double mode switching according to claim 1, is characterized in that: described oil sources comprises: motor (1), yielding coupling (2), variable pump (3), strainer (4), the first one way valve (5), the second one way valve (6), safety valve (15) and fuel tank (16); Motor (1) is connected by yielding coupling (2) and variable pump (3), the oil-in of variable pump (3) is connected with fuel tank (16), the oil-out of variable pump (3) is connected with the oil-in of strainer (4), the first one way valve (5) is connected across between the oil-in of strainer (4) and the oil-out of strainer (4), the oil-out of the oil-in of the second one way valve (6) and strainer (4) is connected, the oil-out of the second one way valve (6) is connected with the oil-in of safety valve (15), and the oil-out of safety valve (15) is connected with fuel tank (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420289469.7U CN203939503U (en) | 2014-06-03 | 2014-06-03 | A kind of TBM propulsion hydraulic system of double mode switching |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420289469.7U CN203939503U (en) | 2014-06-03 | 2014-06-03 | A kind of TBM propulsion hydraulic system of double mode switching |
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| CN203939503U true CN203939503U (en) | 2014-11-12 |
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| CN201420289469.7U Withdrawn - After Issue CN203939503U (en) | 2014-06-03 | 2014-06-03 | A kind of TBM propulsion hydraulic system of double mode switching |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033154A (en) * | 2014-06-03 | 2014-09-10 | 浙江大学 | TBM dual-mode switching pushing hydraulic system |
| CN105221500A (en) * | 2015-10-22 | 2016-01-06 | 浙江大学 | The TBM rear support hydraulic system of single double pump pattern switching and pressurize |
| CN109543268A (en) * | 2018-11-14 | 2019-03-29 | 大连理工大学 | The recognition methods of TBM propulsive force major influence factors based on kriging model |
-
2014
- 2014-06-03 CN CN201420289469.7U patent/CN203939503U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033154A (en) * | 2014-06-03 | 2014-09-10 | 浙江大学 | TBM dual-mode switching pushing hydraulic system |
| CN104033154B (en) * | 2014-06-03 | 2015-12-09 | 浙江大学 | The TBM propulsion hydraulic system of double mode switching |
| CN105221500A (en) * | 2015-10-22 | 2016-01-06 | 浙江大学 | The TBM rear support hydraulic system of single double pump pattern switching and pressurize |
| CN109543268A (en) * | 2018-11-14 | 2019-03-29 | 大连理工大学 | The recognition methods of TBM propulsive force major influence factors based on kriging model |
| CN109543268B (en) * | 2018-11-14 | 2023-05-05 | 大连理工大学 | TBM propulsion main influencing factor identification method based on kriging model |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141112 Effective date of abandoning: 20151209 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |