Locomotive pressure device pressurize filter
Technical field
The utility model locomotive pressure device pressurize filter belongs to pressurized machine lubrication system technical field.
Background technique
Diesel engine of locomotive uses pressurized machine ubiquity rate of fault height, the broken situations such as many of repairing of facing of machine, the pressurized machine rate of fault accounts for more than 30% of locomotive failure rate, leak as oil sealing, carbon distribution is dead admittedly, burn bearing, sweep thorax and a series of problems such as blade breaks, impeller grazing housing usually occur, these problems are perplexing transportation department for many years always, become a difficult problem that deeply worries about of transportation department.Manufacturer has carried out repeatedly rectification at this situation.But because the pressurized machine predecessor is that boats and ships are used, in the face of special structure and the Environmental Conditions of locomotive, its deficiency and shortcoming are more and more obvious, and this safe handling to locomotive has caused very big hidden danger.
Analyze the common problem of their defectives, find that the defective that exists is, locomotive pressure device rotating speed is that 24000rpm is many, in order to solve the problem of rotor critical speed, has to adopt flexible shaft, thereby must adopt sliding bearing.And in order to keep higher empty boasting rotating speed, then its internal clearance just requires a little bit smaller.The fit up gap of its floating ring internal diameter and main shaft only is 0.01-0.032mm, like this, will be higher to the required precision of manufacturing, and also relatively harsher to the requirement of service condition, the turbidity test of machine oil especially.And at present the employed lubricant oil of diesel engine of locomotive pressurized machine and diesel engine used be same machine oil, its turbidity test are difficult to reach this requirement (boats and ships sail on the water, and environment is very little to the dustiness of machine oil), the cleaning that improves machine oil is particularly important.
The pressurized machine lubricating oil is provided by the diesel engine main lubricating oil pump; when diesel engine of locomotive is shut down suddenly; machine oil adverse current in the pipeline is returned diesel engine oil pan; producing pressurized machine end oil pressure reduces suddenly; but the pressurized machine short-term also is in the high speed rotating state; at this moment, very easily cause because of the bearing oil starvation and damage pressurized machine.
The pressurized machine oil seal structure is relatively weaker, is easy to take place oil leakage fault, and the engine oil pressure fluctuation also is a key factor that forms the oil sealing leakage of oil on the other hand, and the oil sealing leakage of oil is a main aspect that causes the broken fault of pressurized machine machine.
Owing to above reason, cause in the actual using process, be very easy to occur because of bearing calcination, carbon deposit, solid dead supercharger rotor etc., and then cause the phenomenon of accident of locomotive defect frequently to take place.
The model utility content
The utility model locomotive pressure device pressurize filter, overcome the deficiency that prior art exists, a kind of locomotive pressure device pressurize filter that the pressurized machine charge oil pressure slowly reduces, improves the fuel feeding turbidity test, the pressurized machine bearing produces excessively heated axle when preventing the machine oil refluence because of oil starvation that makes is provided.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: locomotive pressure device pressurize filter, comprise: filter cleaner, pressurized machine and accumulator, be communicated with by oil pipe between the filler opening of Oil gallery delivery side of pump and filter cleaner, the oil outlet of filter cleaner is communicated with by reduction valve with the lubricating pipe entrance of pressurized machine, the lubricating pipe outlet of pressurized machine is communicated with fuel tank, be connected with accumulator on the oil pipe between filter cleaner and the reduction valve, safety check is arranged on the oil pipe at filter cleaner oil outlet place, stops fluid to pass back into filter cleaner.
Described filter cleaner and safety check are structure as a whole, safety check is installed in filter cleaner inside, the structure of described filter cleaner is: an end of cylindric first cylinder body fixedly has first rear end cover, have oil outlet on described first rear end cover, the other end of first cylinder body fixedly has first connecting ring, first front cover is by being bolted on first connecting ring, have filler opening on described first front cover, the first filter core position is in first cylinder interior, one end of first filter core withstands on first front cover, and the inside of first filter core is communicated with filler opening on described first front cover, and the other end of first filter core withstands on first rear end cover by first spring; Safety check is arranged on the filler opening of described filter cleaner, stops fluid to reflux.
The structure of described safety check is: valve body is the cylindrical body that has step on the excircle, the center of valve body has through hole, one end of hollow connecting rod is sleeved in the described through hole, the other end of hollow connecting rod fixedly has valve gap, one end of the 3rd spring is connected on the valve gap, the other end of the 3rd spring is connected on the step of valve body excircle, has a plurality of through hole fuel feeding liquid on the bar wall of described hollow connecting rod and passes through.
Described filter cleaner is two filter cartridge constructions, one end of second cylinder body fixedly has second rear end cover, have oil outlet on described second rear end cover, the other end of second cylinder body fixedly has second connecting ring, second front cover is by being bolted on second connecting ring, have filler opening on described second front cover, second filter core and the 3rd filter core are set up in parallel in second cylinder interior, one end of second filter core and the 3rd filter core all withstands on second front cover, and the inside of second filter core and the 3rd filter core all is communicated with filler opening on described second front cover, and the other end of second filter core and the 3rd filter core all withstands on second rear end cover by second spring.
Described safety check is installed in described filter cleaner inside, in the filter cleaner on second filter core and the 3rd filter core and second front cover place of connection of filler opening be provided with a safety check separately.
The utility model compared with prior art has following beneficial effect.
1, bitubular filter cleaner is composed in parallel by 2 filter cores in the utility model, propping up filter core with traditional list compares, under same flow, flow by every filter core, flow velocity becomes original half, resistance drop is at half, after circulating resistance reduced, the power that promotion is attached to the particle of cartridge surface diminished, and is difficult for being pulled to the downstream, thereby have and more tackled the particle that gets off by filter core and be attached to cartridge surface, improve filtering precision, increased pollutant holding capability, prolonged the Cleaning period, the assurance pressurized machine is supplementally taken in the phase at one for a short time, the situation that filter cleaner filtering resistance is too high and stop up not taking place, improve the reliability of filtering, is unlikely to take place the phenomenon that excessively heated axle takes place because of oil starvation pressurized machine.
2, in the utility model bitubular filter cleaner be on the basis of original monotubular filter cleaner again monotubular filtering shell combination in parallel form, do not have import and the outlet of extra increase machine oil, easy for installation, filter core can generally exchange, and is easy to apply.
3, the utility model has increased accumulator and safety check in the lubricant oil oil feeding line of pressurized machine, and the charge oil pressure of pressurized machine is slowly reduced, the fault that the pressurized machine bearing that has caused when having avoided diesel engine of locomotive to shut down suddenly produces because of oil starvation.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of filter cleaner in the utility model;
Fig. 3 is the another kind of structural representation of filter cleaner in the utility model.
Among the figure, 1 is that first front cover, 2 is that first cylinder body, 3 is that first rear end cover, 4 is that first filter core, 5 is that first connecting ring, 6 is that valve body, 7 is that first spring, 8 is that hollow connecting rod, 9 is that valve gap, 10 is that second filter core, 11 is that second front cover, 12 is that second cylinder body, 13 is that second rear end cover, 14 is that the 3rd filter core, 15 is that second cover plate, 16 is that second through hole, 17 is that second spring, 18 is that runner, 19 is that safety check, 20 is that the 3rd spring, 21 is that pressurized machine, 22 is that accumulator, 23 is that reduction valve, 24 is filter cleaner.
Embodiment
As Fig. 1-shown in Figure 3, the utility model locomotive pressure device pressurize filter, comprise: filter cleaner 24, pressurized machine 21 and accumulator 22, be communicated with by oil pipe between the filler opening of Oil gallery delivery side of pump and filter cleaner 24, the oil outlet of filter cleaner 24 is communicated with by reduction valve 23 with the lubricating pipe entrance of pressurized machine 21, the lubricating pipe outlet of pressurized machine 21 is communicated with fuel tank, be connected with accumulator 22 on the oil pipe between filter cleaner 24 and the reduction valve 23, safety check 19 is arranged on the oil pipe at filter cleaner 24 oil outlet places, stops fluid to pass back into filter cleaner 24.
Described filter cleaner 24 and safety check 19 are structure as a whole, safety check 19 is installed in filter cleaner 24 inside, the structure of described filter cleaner 24 is: an end of cylindric first cylinder body 2 fixedly has first rear end cover 3, have oil outlet on described first rear end cover 3, the other end of first cylinder body 2 fixedly has first connecting ring 5, first front cover 1 is by being bolted on first connecting ring 5, have filler opening on described first front cover 1,4 of first filter cores are in first cylinder body, 2 inside, one end of first filter core 4 withstands on first front cover 1, and the inside of first filter core 4 is communicated with filler opening on described first front cover 1, and the other end of first filter core 4 withstands on first rear end cover 3 by first spring 7; Safety check 19 is arranged on the filler opening of described filter cleaner 24, stops fluid to reflux.
The structure of described safety check 19 is: valve body 6 is for having the cylindrical body of step on the excircle, the center of valve body 6 has through hole, one end of hollow connecting rod 8 is sleeved in the described through hole, the other end of hollow connecting rod 8 fixedly has valve gap 9, one end of the 3rd spring 20 is connected on the valve gap 9, the other end of the 3rd spring 20 is connected on the step of valve body 6 excircles, has a plurality of through hole fuel feeding liquid on the bar wall of described hollow connecting rod 8 and passes through.
Described filter cleaner 24 is two filter cartridge constructions, one end of second cylinder body 12 fixedly has second rear end cover 13, have oil outlet on described second rear end cover 13, the other end of second cylinder body 12 fixedly has second connecting ring 15, second front cover 11 is by being bolted on second connecting ring 15, have filler opening on described second front cover 11, second filter core 10 and the 3rd filter core 14 are set up in parallel in second cylinder body, 12 inside, one end of second filter core 10 and the 3rd filter core 14 all withstands on second front cover 11, and the inside of second filter core 10 and the 3rd filter core 14 all is communicated with filler opening on described second front cover 11, and the other end of second filter core 10 and the 3rd filter core 14 all withstands on second rear end cover 13 by second spring 17.
Described safety check 19 is installed in described filter cleaner 24 inside, in the filter cleaner 24 on second filter core 10 and the 3rd filter core 14 and second front cover 11 place of connection of filler opening be provided with a safety check 19 separately.
In the utility model; filter for pressurized machine 21 lubricated fluid earlier through the filter cleaner 24 that contains two filter cores; a part is that pressurized machine 21 is lubricated through reduction valve 23 then; another part enters accumulator 22; because the lubricating oil of pressurized machine 21 is to be provided by the diesel engine main lubricating oil pump; so when diesel engine of locomotive is shut down suddenly; oil pressure can reduce suddenly; at this moment; fluid in the accumulator 22 enters and continues as pressurized machine 21 in the oil circuit lubricant oil is provided; can delay time and give the pressurized machine fuel feeding about 2 minutes, safety check 19 has guaranteed that the fluid in the accumulator 22 can not reflux, like this; turn to the process that stops operating from ultra high speed at pressurized machine 21; assurance has sufficient; machine oil with certain oil pressure is supplied, and pressurized machine 21 is unlikely to because of oil starvation accelerated wear test, causes machine broken.