CN203809422U - Hydraulic test system of load motors of railway tamping device - Google Patents
Hydraulic test system of load motors of railway tamping device Download PDFInfo
- Publication number
- CN203809422U CN203809422U CN201420139005.8U CN201420139005U CN203809422U CN 203809422 U CN203809422 U CN 203809422U CN 201420139005 U CN201420139005 U CN 201420139005U CN 203809422 U CN203809422 U CN 203809422U
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- CN
- China
- Prior art keywords
- load motor
- fuel tank
- output terminal
- oil
- test system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000012360 testing method Methods 0.000 title claims abstract description 52
- 238000001816 cooling Methods 0.000 claims abstract description 24
- 239000003921 oil Substances 0.000 claims description 61
- 239000002828 fuel tank Substances 0.000 claims description 42
- 150000001875 compounds Chemical class 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 238000004088 simulation Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Abstract
The utility model discloses a hydraulic test system of load motors of a railway tamping device. The hydraulic test system of the load motors of the railway tamping device comprises an oil tank and a load motor test loop; the load motors can be subjected to a simulation test by the load motor test loop, the quality of the load motors is tested, and the load motors are convenient to overhaul. 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 the load motors is prevented. The pressure in the load motor test loop can be limited by arranging a pilot operated relief valve.
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 load motor.
Background technique
At present, railway tamping unit is common railway maintenance equipment.It in use often need to overhaul its load motor group, 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 load motor, can carry out simulation test to load motor, tests its quality, is convenient to its maintenance.
In order to solve the problems of the technologies described above, the utility model adopts following technological scheme:
A kind of hydraulic test system of railway tamping unit load motor, 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 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; 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.
On described fuel tank, be also provided with liquid level relay.
Between the input of described load motor group, output terminal, be provided with direct-acting overflow valve.
Adopt technique scheme, the hydraulic test system of this railway tamping unit load motor comprises fuel tank, load motor test loop, by load motor test loop, can carry out simulation test to load motor, tests its quality, is convenient to its maintenance.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 load motor test loop.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated:
Fig. 1 is the application principle figure of the hydraulic test system of the utility model railway tamping unit load motor.
Embodiment
The hydraulic test system of railway tamping unit load motor of the present utility model can be applicable in the hydraulic test system of whole railway tamping unit as shown in Figure 1, it comprises fuel tank 1 and load motor test loop the hydraulic test system of load motor, 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.
The hydraulic test system of above-mentioned railway tamping unit 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.
The hydraulic test system of above-mentioned railway tamping unit 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.
The hydraulic test system of above-mentioned load motor 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 load motor of the present utility model to there is following advantage:
1, can simulate the operation situation of the load motor group 2 of fiddling with device, thus 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 is set, can limit the pressure in load motor test loop.
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 (6)
1. the hydraulic test system of a railway tamping unit load motor, 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.
2. the hydraulic test system of railway tamping unit load motor 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 load motor according to claim 2, is characterized in that:
Between described logical valve and fuel tank, be connected with the first 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 load motor according to claim 3, 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.
5. the hydraulic test system of railway tamping unit load motor according to claim 1, is characterized in that:
On described fuel tank, be also provided with liquid level relay.
6. the hydraulic test system of railway tamping unit load motor according to claim 5, is characterized in that:
Between the input of described load motor group, output terminal, be provided with direct-acting overflow valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420139005.8U CN203809422U (en) | 2014-03-26 | 2014-03-26 | Hydraulic test system of load motors of railway tamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420139005.8U CN203809422U (en) | 2014-03-26 | 2014-03-26 | Hydraulic test system of load motors of railway tamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203809422U true CN203809422U (en) | 2014-09-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420139005.8U Expired - Lifetime CN203809422U (en) | 2014-03-26 | 2014-03-26 | Hydraulic test system of load motors of railway tamping device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203809422U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867532A (en) * | 2014-03-26 | 2014-06-18 | 上海电气液压气动有限公司 | Hydraulic test system of loading motor of railway tamping device |
-
2014
- 2014-03-26 CN CN201420139005.8U patent/CN203809422U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867532A (en) * | 2014-03-26 | 2014-06-18 | 上海电气液压气动有限公司 | Hydraulic test system of loading motor of railway tamping device |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |