CN203809420U - Hydraulic test system for tamping railway - Google Patents
Hydraulic test system for tamping railway Download PDFInfo
- Publication number
- CN203809420U CN203809420U CN201420138589.7U CN201420138589U CN203809420U CN 203809420 U CN203809420 U CN 203809420U CN 201420138589 U CN201420138589 U CN 201420138589U CN 203809420 U CN203809420 U CN 203809420U
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- Prior art keywords
- output terminal
- directional control
- control valve
- solenoid directional
- fuel tank
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- 238000012360 testing method Methods 0.000 title claims abstract description 59
- 238000001816 cooling Methods 0.000 claims abstract description 24
- 239000003921 oil Substances 0.000 claims description 83
- 239000002828 fuel tank Substances 0.000 claims description 52
- 150000001875 compounds Chemical class 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 230000035939 shock Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 4
- 230000001077 hypotensive effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Abstract
The utility model discloses a hydraulic test system for tamping a railway. The hydraulic test system for tamping the railway comprises an oil tank as well as a load motor test loop, a tamping hydraulic cylinder test loop and an overturning hydraulic cylinder test loop which are respectively used for overhauling the operation quality of a load motor group, a tamping hydraulic cylinder and an overturning hydraulic cylinder of the tamping device. Oil in the oil tank can be cooled by an oil tank cooling loop. Power lossing cutoff can be realized when the motor of a first oil suction pump is stopped by arranging a logic valve, so the load motor group stops rotation, and suction caused by continuous rotation of motors is prevented. The pressure in the corresponding loops can be limited by arranging pilot operated relief valves. The pressure reduction action is achieved by arranging a reducing valve. The shock adsorbing action can be achieved during reversing by arranging energy accumulators.
Description
Technical field
The utility model belongs to hydraulic power station, is specifically related to a kind of hydraulic test system of railway tamping unit.
Background technique
At present, railway tamping unit is common railway maintenance equipment.It in use, often need to be to its load motor group, make the parts such as inside and outside oil cylinder, the inside and outside oil cylinder of upset firm by ramming and overhaul, and also needs service testing after maintenance, if the problem of finding that there is also needs to pull down maintenance again, very inconvenient.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of hydraulic test system of railway tamping unit, can carry out simulation test, is convenient to the maintenance of each parts of tamping unit.
In order to solve the problems of the technologies described above, the utility model adopts following technological scheme:
A hydraulic test system for railway tamping unit, comprises fuel tank, load motor test loop, and load motor test loop comprises vibration damper, the first oil scavenge pump, logical valve, and vibration damper input end is connected with fuel tank, and output terminal is connected with the first oil scavenge pump; The first oil scavenge pump output terminal is connected with the load motor group of tamping unit respectively; Logical valve input end is connected with the output terminal of load motor group respectively, and logical valve output terminal is connected to fuel tank, and logical valve must conduct, dead electricity cut-off;
Described hydraulic test system also comprises makes oil hydraulic cylinder test loop firm by ramming, make oil hydraulic cylinder test loop firm by ramming and comprise the second oil scavenge pump, first, the second solenoid directional control valve, reduction valve, the input end of the second oil scavenge pump is connected with fuel tank, output terminal is connected to respectively first, one input end of the second solenoid directional control valve, one output terminal of the first solenoid directional control valve is connected with reduction valve, the output terminal of reduction valve is connected to the inner casing of making firm by ramming of tamping unit, the output terminal of making inner casing firm by ramming is connected to another input end of the first solenoid directional control valve, one output terminal of the second solenoid directional control valve is connected to the outer shell of making firm by ramming of tamping unit, the output terminal of making outer shell firm by ramming is connected to another input end of the second solenoid directional control valve, another output terminal of the first solenoid directional control valve is connected to fuel tank after being connected with another output terminal of the second solenoid directional control valve,
Described hydraulic test system also comprises upset oil hydraulic cylinder test loop, upset oil hydraulic cylinder test loop comprises the 3rd oil scavenge pump, the 3rd, the 4th solenoid directional control valve, the input end of the 3rd oil scavenge pump is connected with fuel tank, and output terminal is connected to respectively an input end of the 3rd, the 4th solenoid directional control valve; The output terminal of the 3rd solenoid directional control valve is connected to the input end of the upset inner casing of tamping unit, and the output terminal of upset inner casing is connected to another input end of the 3rd solenoid directional control valve; One output terminal of the 4th solenoid directional control valve is connected to the input end of the upset outer shell of tamping unit, and the output terminal of upset outer shell is connected to another input end of the 4th solenoid directional control valve; Another output terminal of the 3rd solenoid directional control valve is connected to fuel tank after being connected with another output terminal of the 4th solenoid directional control valve.
Described hydraulic test system also comprises fuel tank cooling circuit, and fuel tank cooling circuit comprises the 4th oil scavenge pump, industrial oil cooling machine, and the input end of the 4th oil scavenge pump is connected with fuel tank, and output terminal is connected with industrial oil cooling machine, and the output terminal of industrial oil cooling machine is connected to fuel tank.
Between described logical valve and fuel tank, be connected with the first return filter; Another output terminal of first, second, third and fourth solenoid directional control valve is all connected, and and fuel tank between be connected with the second return filter; Between the output terminal of industry oil cooling machine and fuel tank, be connected with the 3rd return filter.
Between described the first oil suction delivery side of pump and the input end of the first return filter, be connected with the first pilot operated compound relief valve, between another output terminal of first, second solenoid directional control valve and the second return filter, be connected with the second pilot operated compound relief valve, between another output terminal of the 3rd, the 4th solenoid directional control valve and the second return filter, be connected with the 3rd pilot operated compound relief valve.
On described input of making inside and outside cylinder firm by ramming, output terminal, be all connected with diaphragm accumulator.
On described fuel tank, be also provided with liquid level relay.
Between the input of described load motor group, output terminal, make firm by ramming between the input, output terminal of inner casing, make firm by ramming between the input, output terminal of outer shell, the input, output terminal of making inner casing firm by ramming respectively and between the input end of the second return filter, input, the output terminal of making outer shell firm by ramming be equipped with direct-acting overflow valve respectively and between the input end of the second return filter.
Adopt technique scheme, the hydraulic test system of this railway tamping unit comprises fuel tank, load motor test loop, makes oil hydraulic cylinder test loop firm by ramming, upset oil hydraulic cylinder test loop, respectively in order to test tamping unit load motor group, make the operation quality of oil hydraulic cylinder, upset oil hydraulic cylinder firm by ramming.By fuel tank cooling circuit, can also carry out cooling to the oil in fuel tank.By logical valve is set, in the time of can stopping at the motor of the first oil scavenge pump, dead electricity cut-off, stops operating load motor group, prevents that motor from continuing rotation and causing suction.By pilot operated compound relief valve is set, can limit the pressure in corresponding circuit.By reduction valve is set, can play hypotensive effect.By being set, accumulator can when commutating, play the effect of absorbing vibration.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated:
Fig. 1 is the schematic diagram of the hydraulic test system of the utility model railway tamping unit.
Embodiment
The hydraulic test system of railway tamping unit of the present utility model as shown in Figure 1, it comprises fuel tank 1 and load motor test loop, this load motor test loop mainly comprises vibration damper 11, the first oil scavenge pump 12, logical valve 13, vibration damper 11 input ends are connected with fuel tank 1, and output terminal is connected with the first oil scavenge pump 12; The first oil scavenge pump 12 can adopt crescent gear pump, and adopts the secondary variable-frequency motor of 37kw to drive, and the output terminal of the first oil scavenge pump 12 is connected with the load motor group 2 of tamping unit respectively by tubular type one-way valve; Logical valve 13 input ends are connected with the output terminal of load motor group 2 respectively, and logical valve 13 output terminals are connected to fuel tank 1 by the first return filter, and logical valve 13 must conduct, dead electricity cut-off.When the operation of secondary variable-frequency motor, the first oil scavenge pump 12 is picked up the interior oil of fuel tank 1 input load groups of motors 2, can check the runnability of load motor group 2, thus the quality of trouble hunt ing, now logical valve 13 must be electric, and oil is got back to fuel tank 1 by the first return filter 14; When secondary variable-frequency motor is out of service, load motor group 2 is subject to oil effect, also can continue operation, if do not stop immediately, can cause suction, therefore, when secondary variable-frequency motor is out of service, logical valve 13 obtains electric cut-off, no longer includes oil by load motor group 2, can make load motor group 2 stop, preventing the generation of suction.
Described hydraulic test system also comprises makes oil hydraulic cylinder test loop firm by ramming, make oil hydraulic cylinder test loop firm by ramming and mainly comprise the second oil scavenge pump 21, first, the second solenoid directional control valve 22, 23, reduction valve 24, the second oil scavenge pump 21 can adopt vane pump, and adopt the AC motor of 11kw to drive, the input end of the second oil scavenge pump 21 is connected with fuel tank 1, the output terminal of the second oil scavenge pump 21 is connected to respectively first by tubular type one-way valve, the second solenoid directional control valve 22, an input end a of 23, one output terminal b of the first solenoid directional control valve 22 is connected with reduction valve 24, it is two groups that the output terminal of reduction valve 24 is connected to respectively making firm by ramming in inner casing 3(Fig. 1 of corresponding tamping unit), the output terminal of making inner casing 3 firm by ramming is connected to respectively another input end c of the first solenoid directional control valve 22, it is three groups that one output terminal b of the second solenoid directional control valve 23 is connected to respectively that tamping unit makes firm by ramming in outer shell 4(figure accordingly), the output terminal of making outer shell 4 firm by ramming is connected to respectively another input end c of the second solenoid directional control valve 23, after being connected with another output terminal d of the second solenoid directional control valve 23, another output terminal d of the first solenoid directional control valve 22 is connected to fuel tank 1 by continuous two the second return filters 25.Make inside and outside cylinder test principle firm by ramming identical, take to making inner casing 3 tests firm by ramming is example, the second oil scavenge pump 21 is under the driving of AC motor, oil is picked up to the first solenoid directional control valve 22, when a of the first solenoid directional control valve 22 and b, c and d conducting, the piston rod of making inner casing 3 firm by ramming is subject to oil effect to carry out extend action, when a of a solenoid directional control valve and c, b and d conducting, the piston rod of making inner casing 3 firm by ramming carries out reverse retract action, thereby realize, to making the action situation of inner casing 3 firm by ramming, test, with trouble hunt ing quality.Above-mentioned reduction valve 24 has been effects of step-down, if be greater than set pressure by oil pressure,, after reduction valve 24, pressure is reduced to set pressure, if be less than set pressure by oil pressure, is actual value.On described input of making inside and outside cylinder 3,4 firm by ramming, output terminal, be also all connected with diaphragm accumulator 26, when commutation, in order to play the effect of absorbing vibration.
Described hydraulic test system also comprises upset oil hydraulic cylinder test loop, upset oil hydraulic cylinder test loop mainly comprises the 3rd oil scavenge pump 31, the 3rd, the 4th solenoid directional control valve 32,33, the 3rd oil scavenge pump 31 also adopts vane pump, and adopt the AC motor of 15kw to drive, the input end of the 3rd oil scavenge pump 31 is connected with fuel tank 1, and output terminal is connected to respectively an input end a of the 3rd, the 4th solenoid directional control valve 32,33; The output terminal b of the 3rd solenoid directional control valve 32 is connected to respectively the input end of the upset inner casing 5 of tamping unit, and the output terminal of upset inner casing 5 is connected to another input end c of the 3rd solenoid directional control valve 32; One output terminal b of the 4th solenoid directional control valve 33 is connected to the input end of the upset outer shell 6 of tamping unit, and the output terminal of upset outer shell 6 is connected to another input end c of the 4th solenoid directional control valve 33; Another output terminal d of the 3rd solenoid directional control valve 32 is also connected to fuel tank 1 by the second return filter 25 after being connected with another output terminal d of the 4th solenoid directional control valve 33.The principle of this upset oil hydraulic cylinder test loop is with to make oil hydraulic cylinder test loop firm by ramming similar, in order to the action situation of the inside and outside cylinder 5,6 that overturns is tested, with trouble hunt ing quality.
Described hydraulic test system also comprises fuel tank cooling circuit, fuel tank cooling circuit comprises the 4th oil scavenge pump 41, industrial oil cooling machine 42, the 4th oil scavenge pump 41 also adopts vane pump and adopts the AC motor of 3kw to drive, the input end of the 4th oil scavenge pump 41 is connected with fuel tank 1, output terminal is connected with industrial oil cooling machine 42, and the output terminal of industrial oil cooling machine 42 is connected to fuel tank 1 by the 3rd return filter 43.By the 4th oil scavenge pump 41, the oil of fuel tank 1 is picked up and by industrial oil cooling machine 42, undertaken cooling, thereby fuel tank 1 is lowered the temperature.
Between the output terminal of described the first oil scavenge pump 12 and the input end of the first return filter 14, be connected with the first pilot operated compound relief valve 15, between another output terminal of first, second solenoid directional control valve 22,23 and the second return filter 25, be connected with between another output terminal of the second pilot operated compound relief valve 27, the three, the 4th solenoid directional control valve 32,33 and the second return filter 25 and be connected with the 3rd pilot operated compound relief valve 34.By above-mentioned pilot operated compound relief valve 15,27,34, can limit and regulate control to the pressure in each loop.
Between the input of described load motor group 2, output terminal, make firm by ramming between the input, output terminal of inner casing 3, make firm by ramming between the input, output terminal of outer shell 4, the input, output terminal of making inner casing 3 firm by ramming respectively and between the input end of the second return filter 25, the input of making outer shell 4 firm by ramming, output terminal respectively and between the input end of the second return filter 25, be equipped with direct-acting overflow valve 7.By 7 pairs of each loops of above-mentioned direct-acting overflow valve, play a protective role.
In addition, on described fuel tank 1, be also provided with liquid level relay 8, be used for controlling the liquid level of fuel tank 1.
In sum, adopt the hydraulic test system of railway tamping unit of the present utility model to there is following advantage:
1, can simulate fiddle with device load motor group 2, fiddle with the operation situation of outer shell in interior outer shell, upset, thereby can trouble hunt ing quality;
2, by fuel tank 1 cooling circuit, can also carry out cooling to the oil in fuel tank 1;
3, by logical valve 13 is set, in the time of can stopping at the motor of the first oil scavenge pump 12, dead electricity cut-off, stops operating load motor group 2, prevents that motor from continuing rotation and causing suction;
4, by pilot operated compound relief valve 15,27,34 is set, can limit the pressure in corresponding circuit;
5, by reduction valve 24 is set, can play hypotensive effect;
6, by being set, accumulator 26 can when commutating, play the effect of absorbing vibration.
But; those skilled in the art will recognize that; above-mentioned embodiment is exemplary; in order better to make those skilled in the art can understand this patent; can not be interpreted as it is the restriction to this patent protection domain; so long as according to spirit that this patent discloses do be anyly equal to change or modify, all fall into the scope of this patent protection.
Claims (7)
1. the hydraulic test system of a railway tamping unit, it is characterized in that: comprise fuel tank, load motor test loop, load motor test loop comprises vibration damper, the first oil scavenge pump, logical valve, and vibration damper input end is connected with fuel tank, and output terminal is connected with the first oil scavenge pump; The first oil scavenge pump output terminal is connected with the load motor group of tamping unit respectively; Logical valve input end is connected with the output terminal of load motor group respectively, and logical valve output terminal is connected to fuel tank, and logical valve must conduct, dead electricity cut-off;
Described hydraulic test system also comprises makes oil hydraulic cylinder test loop firm by ramming, make oil hydraulic cylinder test loop firm by ramming and comprise the second oil scavenge pump, first, the second solenoid directional control valve, reduction valve, the input end of the second oil scavenge pump is connected with fuel tank, output terminal is connected to respectively first, one input end of the second solenoid directional control valve, one output terminal of the first solenoid directional control valve is connected with reduction valve, the output terminal of reduction valve is connected to the inner casing of making firm by ramming of tamping unit, the output terminal of making inner casing firm by ramming is connected to another input end of the first solenoid directional control valve, one output terminal of the second solenoid directional control valve is connected to the outer shell of making firm by ramming of tamping unit, the output terminal of making outer shell firm by ramming is connected to another input end of the second solenoid directional control valve, another output terminal of the first solenoid directional control valve is connected to fuel tank after being connected with another output terminal of the second solenoid directional control valve,
Described hydraulic test system also comprises upset oil hydraulic cylinder test loop, upset oil hydraulic cylinder test loop comprises the 3rd oil scavenge pump, the 3rd, the 4th solenoid directional control valve, the input end of the 3rd oil scavenge pump is connected with fuel tank, and output terminal is connected to respectively an input end of the 3rd, the 4th solenoid directional control valve; The output terminal of the 3rd solenoid directional control valve is connected to the input end of the upset inner casing of tamping unit, and the output terminal of upset inner casing is connected to another input end of the 3rd solenoid directional control valve; One output terminal of the 4th solenoid directional control valve is connected to the input end of the upset outer shell of tamping unit, and the output terminal of upset outer shell is connected to another input end of the 4th solenoid directional control valve; Another output terminal of the 3rd solenoid directional control valve is connected to fuel tank after being connected with another output terminal of the 4th solenoid directional control valve.
2. the hydraulic test system of railway tamping unit according to claim 1, it is characterized in that: described hydraulic test system also comprises fuel tank cooling circuit, fuel tank cooling circuit comprises the 4th oil scavenge pump, industrial oil cooling machine, the input end of the 4th oil scavenge pump is connected with fuel tank, output terminal is connected with industrial oil cooling machine, and the output terminal of industrial oil cooling machine is connected to fuel tank.
3. the hydraulic test system of railway tamping unit according to claim 1, is characterized in that:
Between described logical valve and fuel tank, be connected with the first return filter; Another output terminal of first, second, third and fourth solenoid directional control valve is all connected, and and fuel tank between be connected with the second return filter; Between the output terminal of industry oil cooling machine and fuel tank, be connected with the 3rd return filter.
4. the hydraulic test system of railway tamping unit according to claim 1, it is characterized in that: between described the first oil suction delivery side of pump and the input end of the first return filter, be connected with the first pilot operated compound relief valve, between another output terminal of first, second solenoid directional control valve and the second return filter, be connected with the second pilot operated compound relief valve, between another output terminal of the 3rd, the 4th solenoid directional control valve and the second return filter, be connected with the 3rd pilot operated compound relief valve.
5. the hydraulic test system of railway tamping unit according to claim 1, is characterized in that:
On described input of making inside and outside cylinder firm by ramming, output terminal, be all connected with diaphragm accumulator.
6. the hydraulic test system of railway tamping unit according to claim 1, is characterized in that:
On described fuel tank, be also provided with liquid level relay.
7. the hydraulic test system of railway tamping unit according to claim 1, is characterized in that:
Between the input of described load motor group, output terminal, make firm by ramming between the input, output terminal of inner casing, make firm by ramming between the input, output terminal of outer shell, the input, output terminal of making inner casing firm by ramming respectively and between the input end of the second return filter, input, the output terminal of making outer shell firm by ramming be equipped with direct-acting overflow valve respectively and between the input end of the second return filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420138589.7U CN203809420U (en) | 2014-03-26 | 2014-03-26 | Hydraulic test system for tamping railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420138589.7U CN203809420U (en) | 2014-03-26 | 2014-03-26 | Hydraulic test system for tamping railway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203809420U true CN203809420U (en) | 2014-09-03 |
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ID=51448177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420138589.7U Expired - Lifetime CN203809420U (en) | 2014-03-26 | 2014-03-26 | Hydraulic test system for tamping railway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203809420U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867533A (en) * | 2014-03-26 | 2014-06-18 | 上海电气液压气动有限公司 | Hydraulic test system of railway tamping device |
-
2014
- 2014-03-26 CN CN201420138589.7U patent/CN203809420U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867533A (en) * | 2014-03-26 | 2014-06-18 | 上海电气液压气动有限公司 | Hydraulic test system of railway tamping device |
| CN103867533B (en) * | 2014-03-26 | 2016-04-27 | 上海电气液压气动有限公司 | A kind of hydraulic test system of railway tamping unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |
|
| CX01 | Expiry of patent term |