CN202883520U - Hydraulic system of comprehensive experiment platform - Google Patents
Hydraulic system of comprehensive experiment platform Download PDFInfo
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- CN202883520U CN202883520U CN201220511465.XU CN201220511465U CN202883520U CN 202883520 U CN202883520 U CN 202883520U CN 201220511465 U CN201220511465 U CN 201220511465U CN 202883520 U CN202883520 U CN 202883520U
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- 238000002474 experimental method Methods 0.000 title claims abstract description 42
- 238000011068 loading method Methods 0.000 claims abstract description 98
- 230000033001 locomotion Effects 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 claims description 25
- 239000002828 fuel tank Substances 0.000 claims description 18
- 230000015572 biosynthetic process Effects 0.000 claims description 15
- 230000006835 compression Effects 0.000 claims description 14
- 238000007906 compression Methods 0.000 claims description 14
- 238000003786 synthesis reaction Methods 0.000 claims description 14
- 239000011230 binding agent Substances 0.000 claims description 4
- 230000003028 elevating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 99
- 230000000694 effects Effects 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
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Abstract
The utility model discloses a hydraulic system of a comprehensive experiment platform. The hydraulic system of the comprehensive experiment platform comprises an oil tank, a main oil supply way, a mater pressure oil way, a mater oil drainage way, a master oil return way, and a hydraulic control loop. The oil tank passes by the main oil supply way and the master pressure oil way in sequence and is connected with an oil supply opening of the hydraulic control loop, an oil return opening of is connected with the oil tank through a return oil filter after being gathered by the master oil return way, and an oil drainage opening of the hydraulic control loop is connected with the oil tank after being gathered by the master oil drainage way. The hydraulic control loop comprises a travelling table lifting hydraulic loop used for controlling a loading box of an experiment platform to conduct up-and-down movement, a Z-direction hydraulic cylinder control loop used for controlling the upper top face of the loading box of the experiment platform to conduct Z-direction loading, an X-direction hydraulic cylinder control loop used for controlling the loading box of the experiment platform to conduct X-direction horizontal loading, and a Y-direction hydraulic cylinder control loop used for controlling the loading box of the experiment platform to conduct Y-direction horizontal loading. The main oil supply way is provided with an assisting pressuring maintaining oil way. Therefore, with the cooperation between the hydraulic system of the comprehensive experiment platform with an electronic control part, motion control of the experiment platform can be achieved, and mechanical motions of corresponding functions can be performed. The hydraulic system of the comprehensive experiment platform enables the experiment platform to automatically achieve movable platform lifting and loadings in the X-direction, the Y-direction and Z-direction, and meets various functional motion requirements of the experiment platform. In addition, the hydraulic system has a function of long-time pressure maintain, and is compact in installation space and low in energy consumption.
Description
Technical field
The utility model relates to a kind of hydraulic system of synthesis experiment platform, is mainly used in the power supply of the synthesis experiment platforms such as tunnel, mine, underground engineering, belongs to hydraulic transmission technology field.
Background technique
Along with the fast development of China's economy, urban construction scale constantly enlarges, and the contradiction of urban development and land resources shortage is more and more outstanding, and in recent years, China more and more payes attention to the utilization of urban underground space, and gives to support energetically in policy.And can study under the excavation effect, the comprehensive test study platform that affects different retaining structures stability is the important technological platform of underground engineering key technology research.Under this demand, tunnel, mine and underground engineering synthesis experiment platform arise at the historic moment.For function and the action request that reaches this experiment porch, require a kind of hydraulic system for this experiment porch of exploitation, divide with electric control part to cooperate, to realize the automatic control of experiment porch.
The model utility content
The utility model is for the deficiencies in the prior art, a kind of hydraulic system of synthesis experiment platform is provided, thinks that the synthesis experiment platforms such as tunnel, mine and underground engineering provide power, with electric control part divide cooperate after, can realize the motion control of experiment porch, finish the machinery action of corresponding function.This hydraulic system can so that experiment porch is realized shuttle table lifting and three directions loadings of X/Y/Z automatically, satisfy the different function action demand of experiment porch.In addition, this hydraulic system has long-term pressure holding function, and installing space is compact, and energy consumption is low.
For realizing above technical purpose, the utility model will be taked following technological scheme:
A kind of hydraulic system of synthesis experiment platform, comprise fuel tank, main supply oil circuit, total pressure oil circuit, total draining road, total oil circuit and hydraulic control circuit, described fuel tank is connected with the oil-feed port of hydraulic control circuit behind process main supply oil circuit, the total pressure oil circuit successively, and the return opening of hydraulic control circuit is connected with fuel tank by return oil filter after total oil circuit gathers, the drain tap of hydraulic control circuit is connected with fuel tank after gather on total draining road; Described hydraulic control circuit comprise for the loading case of control experiment porch do elevating movement shuttle table lifting oil hydraulic circuit, be used for that end face on the loading case of control experiment porch is done Z-direction oil hydraulic cylinder control loop that Z-direction loads, the X-direction oil hydraulic cylinder control loop that the directions X level loads done by the loading case that is used for the control experiment porch and the loading case that is used for the control experiment porch is done the Y-direction oil hydraulic cylinder control loop that the Y-direction level loads; Described main supply oil circuit disposes auxiliary pressurize oil circuit, this main supply oil circuit comprises Oil pump electrical machinery group and the large flow check valve that is linked in sequence between fuel tank oil outlet and total pressure oil circuit, and auxiliary pressurize oil circuit then comprises quantitative plunger pump and the small flow one-way valve that is linked in sequence between fuel tank oil outlet and total pressure oil circuit; And the oil outlet of large flow check valve and small flow one-way valve all is connected with pressure meter switch a, this pressure meter switch a is connected with the pressure gauge that shows respectively Oil pump electrical machinery group, quantitative plunger pump discharge pressure, and the oil outlet of simultaneously large flow check valve and small flow one-way valve is connected with return oil filter by electromagnetic relief valve.
Described shuttle table lifting oil hydraulic circuit comprises stacked compression release valve a, two-position three-way electromagnetic ball valve and the lifting hydraulic cylinder that is linked in sequence, and the T mouth of stacked compression release valve a is connected with total draining road, and the T mouth of two-position three-way electromagnetic ball valve is connected with total oil circuit by throttle valve.
Described Z-direction oil hydraulic cylinder control loop comprises 3-position 4-way solenoid directional control valve a and the vertical loading hydraulic cylinder of Z-direction, the P mouth of this 3-position 4-way solenoid directional control valve a is connected with the total pressure oil circuit, the B mouth is connected with the filler opening of the vertical loading hydraulic cylinder of Z-direction, the A mouth then is connected with Pilot operated check valve, the T mouth is connected with total oil circuit, and the B mouth of described Pilot operated check valve a is connected with the X mouth with the rodless cavity hydraulic fluid port of the vertical loading hydraulic cylinder of corresponding Z-direction and is connected with the rod chamber hydraulic fluid port; The rodless cavity hydraulic fluid port of the vertical loading hydraulic cylinder of described Z-direction is separately installed with for the pressure relay a of the default oil pressure electrical signal of the vertical loading hydraulic cylinder of this Z-direction of feedback, for the pressure meter switch b that measures its rodless cavity pressure, and the vertical loading hydraulic cylinder of Z-direction disposes the position limit switch a of the control piston throw of lever, and the A mouth of 3-position 4-way solenoid directional control valve a is equipped with the pressure transducer a that presses for measuring this road binders.
Described X-direction oil hydraulic cylinder control loop, Y-direction oil hydraulic cylinder control loop includes the identical horizontal hydraulic cylinder control loop of three-decker, every one deck horizontal hydraulic cylinder control loop includes 3-position 4-way solenoid directional control valve b and horizontal loading hydraulic cylinder, the P mouth of this 3-position 4-way solenoid directional control valve b is connected with the total pressure oil circuit by stacked compression release valve b, the A mouth is connected with the A mouth of Pilot operated check valve b, the B mouth is connected with the rod chamber hydraulic fluid port of horizontal loading hydraulic cylinder, the T mouth is connected with total oil circuit, the T mouth of described stacked compression release valve b is connected with total draining road, and the B mouth of Pilot operated check valve b is connected with the X mouth with the rodless cavity hydraulic fluid port of respective horizontal loading hydraulic cylinder and is connected with the rod chamber hydraulic fluid port; The rodless cavity hydraulic fluid port of described horizontal loading hydraulic cylinder is separately installed with for the pressure relay b of the default oil pressure electrical signal of this horizontal loading hydraulic cylinder of feedback, for the pressure meter switch c that measures its rodless cavity pressure, and horizontal loading hydraulic cylinder disposes the position limit switch b of the control piston throw of lever, and the A mouth of 3-position 4-way solenoid directional control valve b is equipped with the pressure transducer b that presses for measuring this road binders.
The pressure meter switch b, the c that adopt in described Z-direction oil hydraulic cylinder control loop, X-direction oil hydraulic cylinder control loop and the Y-direction oil hydraulic cylinder control loop are six point pressure table switches, wherein: in the Z-direction oil hydraulic cylinder control loop, comprise four parallel vertical loading hydraulic cylinders that arrange, four parallel vertical loading hydraulic cylinders that arrange in total pressure oil circuit, shuttle table lifting oil circuit, Z-direction oil hydraulic cylinder control loop share first six point pressures table switch; In three layers of horizontal hydraulic cylinder control loop in X-direction oil hydraulic cylinder control loop, every layer of horizontal hydraulic cylinder control loop all comprises 4 parallel horizontal loading hydraulic cylinders that arrange, form altogether 12 horizontal loading hydraulic cylinders, after being divided into two groups, these 12 horizontal loading hydraulic cylinders are arranged symmetrically with, 6 horizontal loading hydraulic cylinders that are in same attachment face share second six point pressure table switch, and are in shared the 3rd six point pressure table switches of 6 horizontal loading hydraulic cylinders of another symmetrical attachment face; In three layers of horizontal hydraulic cylinder control loop in Y-direction oil hydraulic cylinder control loop, every layer of horizontal hydraulic cylinder control loop all comprises 4 parallel horizontal loading hydraulic cylinders that arrange, form altogether 12 horizontal loading hydraulic cylinders, after being divided into two groups, these 12 horizontal loading hydraulic cylinders are arranged symmetrically with, 6 horizontal loading hydraulic cylinders that are in same attachment face share the 4th six point pressure table switches, and are in shared the 5th six point pressure table switches of 6 horizontal loading hydraulic cylinders of another symmetrical attachment face.
Described two-position three-way electromagnetic ball valve is the C type, and 3-position 4-way solenoid directional control valve a, b are the J type.
According to above technological scheme, can realize following beneficial effect:
1, the utility model provides pressure oil to shuttle table lifting oil hydraulic circuit, Z-direction oil hydraulic cylinder control loop, Y-direction oil hydraulic cylinder control loop, X-direction oil hydraulic cylinder control loop respectively by a total pressure oil circuit, thereby realizes the difference in functionality action demand of experiment porch;
2, the utility model adopts the main supply oil circuit that is made of pump motor group, large flow check valve to supply with as the main pressure oil of total pressure oil circuit, can effectively save the installing space of this hydraulic system; This main supply oil circuit also disposes the auxiliary pressurize oil circuit that is made of quantitative plunger pump, small flow one-way valve simultaneously, then when threephase asynchronous drives the quantitative plunger pump running, can provide hydraulic oil for system for a long time, it is constant that loading force is kept, thereby guarantee the accurate of test parameters, namely system is in long-term packing state; In addition, without the control requirement, large flow check valve is connected with main oil pump in uninterrupted control for flow check valve and small flow one-way valve greatly, and through-current capacity is large, and the small flow one-way valve is connected with slippage pump, and through-current capacity is little, and its effect is to prevent fluid backflow damage oil pump;
3, in the hydraulic control circuit described in the utility model, adopt the reduction valve of overlapping and board-like 3-position 4-way solenoid directional control valve, the two-position three-way electromagnetic ball valve that is mated installation, saved further the installing space of hydraulic system; In this hydraulic control circuit, adopted Pilot operated check valve simultaneously, because Pilot operated check valve is without drain tap, therefore, need not other and add effect, can realize the latch functions of Pilot operated check valve, so that system is in interim packing state, therefore, the utlity model has the pressure holding function of different brackets;
4, among the application, why Z-direction oil hydraulic cylinder control loop walks abreast four vertical loading hydraulic cylinders is set, and purpose is the upper end face uniform stressed when loading that loads case; X/Y has cause from three layers of horizontal hydraulic cylinder control loop to oil hydraulic cylinder control loop is to realize that layering loads the internal stress state of simulate formation space different levels; Have again, the application adopts six point pressure table switches to carry out pressure measurement, reason is that six point pressure table switches can survey the pressure of six points, and traditional pressure gauge is measured the pressure of a point only, counting that this system need measure is many, can greatly reduce pressure gauge quantity with six point pressure table switches, save cost, assembling easily;
5, hydraulic system described in the utility model has been selected electromagnetic relief valve open in usual, and electromagnet gets and plays the relief valve effect after electric, plays Unloading Effect after the dead electricity, can avoid system's temperature rise too high, thereby reach energy-conservation purpose;
6, the utlity model has electricity detecting system and physical detection system, be convenient to the cross-reference comparison, and consist of automatic control system, further guaranteed to test and under controllable environment, carried out.
Description of drawings
Fig. 1 is hydraulic schematic diagram of the present utility model.
Fig. 2 is shuttle table lifting oil hydraulic circuit schematic diagram of the present utility model.
Fig. 3 is upper end face of the present utility model (Z-direction) oil hydraulic cylinder control circuit theory figure.
Fig. 4 is level of the present utility model (X/Y to) oil hydraulic cylinder control circuit theory figure.
Wherein: 1 is the Oil pump electrical machinery group; 2 is large flow check valve; 3 is electromagnetic relief valve; 4 is the small flow one-way valve; 5 is threephase asynchronous; 6 is throttle valve; 7 is stacked compression release valve; 8 is the 3-position 4-way solenoid directional control valve; 9 is the two-position three-way electromagnetic ball valve; 10 is Pilot operated check valve; 11 is pressure relay; 12.1 ~ 12.5 is six point pressure table switches; 13 is horizontal loading hydraulic cylinder; 14 is vertical loading hydraulic cylinder; 15 is lifting hydraulic cylinder; 16 is bitubular return oil filter; 17 is the liquid level liquid thermometer; 18 is air-strainer; 19 is purge cock; 20 is fuel tank; 21 is pressure meter switch; 22 is pressure gauge; 23 is pressure transducer; 24 is position limit switch; 25 is quantitative plunger pump.
Embodiment
Accompanying drawing discloses the structural representation of the related preferred embodiment of the utility model without limitation; Explain the technical solution of the utility model below with reference to accompanying drawing.
With reference to Fig. 1, the hydraulic system of synthesis experiment platform described in the utility model comprises Oil pump electrical machinery group 1, large flow check valve 2, electromagnetic relief valve 3, small flow one-way valve 4, threephase asynchronous 5, throttle valve 6, stacked compression release valve 7,3-position 4-way solenoid directional control valve 8, two-position three-way electromagnetic ball valve 9, Pilot operated check valve 10, pressure relay 11, six point pressure table switches 12.1 ~ 12.5, horizontal loading hydraulic cylinder 13, vertical loading hydraulic cylinder 14, lifting hydraulic cylinder 15, bitubular return oil filter 16, liquid level liquid thermometer 17, air-strainer 18, purge cock 19, fuel tank 20, pressure meter switch 21, pressure gauge 22, pressure transducer 23, position limit switch 24, quantitative plunger pump 25.The oil pump import of Oil pump electrical machinery group 1 and drain tap connected tank 20, outlet connects the A mouth of large flow check valve 2, threephase asynchronous 5 drives quantitative plunger pump 25, the import of quantitative plunger pump 25 and drain tap connected tank 20, outlet connects the A mouth of small flow one-way valve 4, the B mouth of large flow check valve 2 and small flow one-way valve 4 connects A mouth and the pressure meter switch 21 of total pressure oil circuit and electromagnetic relief valve 3, and the B mouth of electromagnetic relief valve 3 takes back fuel tank 20 through bitubular return oil filter 16.The total pressure oil circuit is given 8 minutes oil hydraulic circuit fuel feeding.Total draining road takes back fuel tank 20, and total oil circuit takes back fuel tank 20 through bitubular return oil filter 16, and liquid level liquid thermometer 17, air-strainer 18 and purge cock 19 are installed on the fuel tank 20.
With reference to Fig. 2, shuttle table elevating loop part, the P mouth of reduction valve 7 connects the total pressure oil circuit, the A mouth connects the P mouth of two-position three-way electromagnetic ball valve 9, the T mouth connects total draining road, and the A mouth of two-position three-way electromagnetic ball valve 9 connects the hydraulic fluid port of four lifting hydraulic cylinders 15, and the T mouth connects total oil circuit through throttle valve 6.
With reference to Fig. 3, upper end face oil hydraulic cylinder control loop feature, the P mouth of 3-position 4-way solenoid directional control valve 8 connects the total pressure oil circuit, the A mouth branches into four the tunnel, connect respectively the A mouth of Pilot operated check valve 10, its B mouth branches into four tunnel rod chamber hydraulic fluid ports that connect respectively vertical loading hydraulic cylinder 14, and its T mouth connects total return tube, and the B mouth of each Pilot operated check valve 10 and X mouth connect respectively rodless cavity hydraulic fluid port and the rod chamber hydraulic fluid port of corresponding vertical loading hydraulic cylinder 14.
With reference to Fig. 4, horizontal X/Y-direction first layer, the second layer, the structure of the 3rd layer of oil hydraulic circuit is identical, take directions X second layer oil hydraulic circuit as example, the P mouth of reduction valve 7 connects the total pressure oil circuit, the A mouth connects the P mouth of 3-position 4-way solenoid directional control valve 8, the T mouth connects total draining road, the P mouth of 3-position 4-way solenoid directional control valve 8 connects the A mouth of reduction valve 7, its A mouth branches into four the tunnel, connect respectively the A mouth of Pilot operated check valve 10, its B mouth branches into the rod chamber hydraulic fluid port of the flat loading hydraulic cylinder 13 of four tunnel difference water receivings, and its T mouth connects total return tube, and the B mouth of each Pilot operated check valve 10 and X mouth connect respectively rodless cavity hydraulic fluid port and the rod chamber hydraulic fluid port of respective horizontal loading hydraulic cylinder 13.
Working principle of the present utility model is:
Oil pump electrical machinery group 1 as main oil pump to system's fuel feeding.Electromagnetic relief valve 3 is open in usual, and electromagnet gets and plays the relief valve effect after electric, plays Unloading Effect after the dead electricity, can avoid system's temperature rise too high, thereby reach energy-conservation purpose.Lifting hydraulic cylinder 15 is plunger case, and two-position three-way electromagnetic ball valve 9 is the C type, its electromagnet get electric after, lifting hydraulic cylinder 15 plungers rise, after the electromagnet dead electricity, plunger descends.Can regulate the pressure set points of reduction valve 7, thereby lifting hydraulic cylinder 15 is worked under suitable pressure, the shuttle table part of lifting experiment porch.3-position 4-way solenoid directional control valve 8 is the J type, and its left position and right position realize that respectively the worker of vertical loading hydraulic cylinder 14 or horizontal loading hydraulic cylinder 13 moves back with the worker.Can regulate the pressure set points of reduction valve 7, thereby horizontal loading hydraulic cylinder 13 is worked under suitable pressure, test specimen is carried out the substantially horizontal pressurization.Pilot operated check valve 10 is without drain tap, reach the setting value of pressure relay 11 when oil hydraulic cylinder rodless cavity pressure, pressure relay 11 sends electrical signal, make 3-position 4-way solenoid directional control valve 8 be in meta by control system, vertically loading hydraulic cylinder 14 or 13 stop motions of horizontal loading hydraulic cylinder, Pilot operated check valve 10 can be realized interim pressure holding function.When all pressure relayes 11 all move, then hydraulic system enters packing stage, and Oil pump electrical machinery group 1 is shut down, and quantitative plunger pump 25 is given the long-term pressurize of system as the slippage pump entry into service.After pressure maintaining period finishes, vertically loading hydraulic cylinder 14 and horizontal loading hydraulic cylinder 13 workers move back, position limit switch 24 is arranged on zero-bit, behind the hydraulic cylinder piston rod contacting travel switch 24, send electrical signal by position limit switch 24, make 3-position 4-way solenoid directional control valve 8 enter meta by control system, make loading hydraulic cylinder 14 and horizontal loading hydraulic cylinder 13 get back to zero-bit.
Summary of the invention part in claims and specification is the difference of difference same class parts mounting point in this hydraulic system, and the application is different alphabetical to show difference at the ending place mark of this base part; Wherein:
Pressure meter switch a: the oil outlet (B mouth) that is installed in large flow check valve and small flow one-way valve; Pressure meter switch b: the rodless cavity pressure that is used for measuring the vertical loading hydraulic cylinder of Z-direction; Pressure meter switch c: the rodless cavity pressure that is used for measuring horizontal loading hydraulic cylinder;
Stacked compression release valve a: be installed in the shuttle table lifting oil hydraulic circuit, its T mouth and total draining road, the P mouth is connected with the total pressure oil circuit, and the A mouth then is connected with the P mouth of two-position three-way electromagnetic ball valve; Stacked compression release valve b: be installed in the horizontal hydraulic cylinder control loop, totally six, the T mouth of each stacked compression release valve b and total draining road, the P mouth is connected with the total pressure oil circuit, and the A mouth then is connected with the P mouth of 3-position 4-way solenoid directional control valve b;
3-position 4-way solenoid directional control valve a: be installed in the Z-direction oil hydraulic cylinder control loop, the P mouth of this 3-position 4-way solenoid directional control valve a connects the total pressure oil circuit, the A mouth branches into four the tunnel, connect respectively the A mouth of Pilot operated check valve a, its B mouth branches into four tunnel rod chamber hydraulic fluid ports that connect respectively vertical loading hydraulic cylinder, and its T mouth connects total return tube; 3-position 4-way solenoid directional control valve b: be installed in the horizontal hydraulic cylinder control loop, totally six, the P mouth of each 3-position 4-way solenoid directional control valve b connects the A mouth of stacked compression release valve b, the A mouth branches into four the tunnel, connect respectively the A mouth of Pilot operated check valve b, the B mouth branches into four the tunnel and connects respectively each parallel rod chamber hydraulic fluid port that horizontal loading hydraulic cylinder is set, and the T mouth connects total return tube;
Pilot operated check valve a: be installed in the Z-direction oil hydraulic cylinder control loop; Pilot operated check valve b: be installed in the horizontal hydraulic cylinder control loop;
Pressure relay a: be installed in the Z-direction oil hydraulic cylinder control loop; Pressure relay b: be installed in the horizontal hydraulic cylinder control loop;
Pressure meter switch b: be installed in the Z-direction oil hydraulic cylinder control loop; Pressure meter switch c: be installed in the horizontal hydraulic cylinder control loop;
Position limit switch a: be installed in the Z-direction oil hydraulic cylinder control loop; Position limit switch b: be installed in the horizontal hydraulic cylinder control loop;
Pressure transducer a: be installed in the Z-direction oil hydraulic cylinder control loop; Pressure transducer b: be installed in the horizontal hydraulic cylinder control loop.
Claims (6)
1. the hydraulic system of a synthesis experiment platform, comprise fuel tank, main supply oil circuit, total pressure oil circuit, total draining road, total oil circuit and hydraulic control circuit, described fuel tank is connected with the oil-feed port of hydraulic control circuit behind process main supply oil circuit, the total pressure oil circuit successively, and the return opening of hydraulic control circuit is connected with fuel tank by return oil filter after total oil circuit gathers, the drain tap of hydraulic control circuit is connected with fuel tank after gather on total draining road; It is characterized in that: described hydraulic control circuit comprise for the loading case of control experiment porch do elevating movement shuttle table lifting oil hydraulic circuit, be used for that end face on the loading case of control experiment porch is done Z-direction oil hydraulic cylinder control loop that Z-direction loads, the X-direction oil hydraulic cylinder control loop that the directions X level loads done by the loading case that is used for the control experiment porch and the loading case that is used for the control experiment porch is done the Y-direction oil hydraulic cylinder control loop that the Y-direction level loads; Described main supply oil circuit disposes auxiliary pressurize oil circuit, this main supply oil circuit comprises Oil pump electrical machinery group and the large flow check valve that is linked in sequence between fuel tank oil outlet and total pressure oil circuit, and auxiliary pressurize oil circuit then comprises quantitative plunger pump and the small flow one-way valve that is linked in sequence between fuel tank oil outlet and total pressure oil circuit; And the oil outlet of large flow check valve and small flow one-way valve all is connected with pressure meter switch a, this pressure meter switch a is connected with the pressure gauge that shows respectively Oil pump electrical machinery group, quantitative plunger pump discharge pressure, and the oil outlet of simultaneously large flow check valve and small flow one-way valve is connected with return oil filter by electromagnetic relief valve.
2. the hydraulic system of described synthesis experiment platform according to claim 1, it is characterized in that: described shuttle table lifting oil hydraulic circuit comprises stacked compression release valve a, two-position three-way electromagnetic ball valve and the lifting hydraulic cylinder that is linked in sequence, and the T mouth of stacked compression release valve a is connected with total draining road, and the T mouth of two-position three-way electromagnetic ball valve is connected with total oil circuit by throttle valve.
3. the hydraulic system of described synthesis experiment platform according to claim 2, it is characterized in that: described Z-direction oil hydraulic cylinder control loop comprises 3-position 4-way solenoid directional control valve a and the vertical loading hydraulic cylinder of Z-direction, the P mouth of this 3-position 4-way solenoid directional control valve a is connected with the total pressure oil circuit, the B mouth is connected with the filler opening of the vertical loading hydraulic cylinder of Z-direction, the A mouth then is connected with Pilot operated check valve, the T mouth is connected with total oil circuit, and the B mouth of described Pilot operated check valve a is connected with the X mouth with the rodless cavity hydraulic fluid port of the vertical loading hydraulic cylinder of corresponding Z-direction and is connected with the rod chamber hydraulic fluid port; The rodless cavity hydraulic fluid port of the vertical loading hydraulic cylinder of described Z-direction is separately installed with for the pressure relay a of the default oil pressure electrical signal of the vertical loading hydraulic cylinder of this Z-direction of feedback, for the pressure meter switch b that measures its rodless cavity pressure, and the vertical loading hydraulic cylinder of Z-direction disposes the position limit switch a of the control piston throw of lever, and the A mouth of 3-position 4-way solenoid directional control valve a is equipped with the pressure transducer a that presses for measuring this road binders.
4. the hydraulic system of described synthesis experiment platform according to claim 3, it is characterized in that: described X-direction oil hydraulic cylinder control loop, Y-direction oil hydraulic cylinder control loop includes the identical horizontal hydraulic cylinder control loop of three-decker, every one deck horizontal hydraulic cylinder control loop includes 3-position 4-way solenoid directional control valve b and horizontal loading hydraulic cylinder, the P mouth of this 3-position 4-way solenoid directional control valve b is connected with the total pressure oil circuit by stacked compression release valve b, the A mouth is connected with the A mouth of Pilot operated check valve b, the B mouth is connected with the rod chamber hydraulic fluid port of horizontal loading hydraulic cylinder, the T mouth is connected with total oil circuit, the T mouth of described stacked compression release valve b is connected with total draining road, and the B mouth of Pilot operated check valve b is connected with the X mouth with the rodless cavity hydraulic fluid port of respective horizontal loading hydraulic cylinder and is connected with the rod chamber hydraulic fluid port; The rodless cavity hydraulic fluid port of described horizontal loading hydraulic cylinder is separately installed with for the pressure relay b of the default oil pressure electrical signal of this horizontal loading hydraulic cylinder of feedback, for the pressure meter switch c that measures its rodless cavity pressure, and horizontal loading hydraulic cylinder disposes the position limit switch b of the control piston throw of lever, and the A mouth of 3-position 4-way solenoid directional control valve b is equipped with the pressure transducer b that presses for measuring this road binders.
5. the hydraulic system of described synthesis experiment platform according to claim 4, it is characterized in that: the pressure meter switch b, the c that adopt in described Z-direction oil hydraulic cylinder control loop, X-direction oil hydraulic cylinder control loop and the Y-direction oil hydraulic cylinder control loop are six point pressure table switches, wherein: in the Z-direction oil hydraulic cylinder control loop, comprise four parallel vertical loading hydraulic cylinders that arrange, four parallel vertical loading hydraulic cylinders that arrange in total pressure oil circuit, shuttle table lifting oil circuit, Z-direction oil hydraulic cylinder control loop share first six point pressures table switch; In three layers of horizontal hydraulic cylinder control loop in X-direction oil hydraulic cylinder control loop, every layer of horizontal hydraulic cylinder control loop all comprises 4 parallel horizontal loading hydraulic cylinders that arrange, form altogether 12 horizontal loading hydraulic cylinders, after being divided into two groups, these 12 horizontal loading hydraulic cylinders are arranged symmetrically with, 6 horizontal loading hydraulic cylinders that are in same attachment face share second six point pressure table switch, and are in shared the 3rd six point pressure table switches of 6 horizontal loading hydraulic cylinders of another symmetrical attachment face; In three layers of horizontal hydraulic cylinder control loop in Y-direction oil hydraulic cylinder control loop, every layer of horizontal hydraulic cylinder control loop all comprises 4 parallel horizontal loading hydraulic cylinders that arrange, form altogether 12 horizontal loading hydraulic cylinders, after being divided into two groups, these 12 horizontal loading hydraulic cylinders are arranged symmetrically with, 6 horizontal loading hydraulic cylinders that are in same attachment face share the 4th six point pressure table switches, and are in shared the 5th six point pressure table switches of 6 horizontal loading hydraulic cylinders of another symmetrical attachment face.
6. the hydraulic system of described synthesis experiment platform according to claim 5, it is characterized in that: described two-position three-way electromagnetic ball valve is the C type, and 3-position 4-way solenoid directional control valve a, b are the J type
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220511465.XU CN202883520U (en) | 2012-09-28 | 2012-09-28 | Hydraulic system of comprehensive experiment platform |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201220511465.XU CN202883520U (en) | 2012-09-28 | 2012-09-28 | Hydraulic system of comprehensive experiment platform |
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| CN202883520U true CN202883520U (en) | 2013-04-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047202A (en) * | 2012-09-28 | 2013-04-17 | 江苏南华地下空间研究所有限公司 | Hydraulic system of comprehensive experiment platform |
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2012
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047202A (en) * | 2012-09-28 | 2013-04-17 | 江苏南华地下空间研究所有限公司 | Hydraulic system of comprehensive experiment platform |
| CN103047202B (en) * | 2012-09-28 | 2016-12-21 | 江苏南华地下空间研究所有限公司 | The hydraulic system of synthesis experiment platform |
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