CN211692832U - Oil-gas separator sealing mechanism for rail transit wind source device - Google Patents

Abstract

The utility model provides a be used for rail transit wind regime device oil and gas separator sealing mechanism, including oil gas bucket, oil content core and oil gas bucket bung, the oil content core sets up between oil gas bucket and oil gas bucket bung, oil content core opening periphery is provided with the brim of a hat, the up end that oil gas bucket and oil content core brim of a hat contact is provided with oil gas bucket slot, is provided with first O shape sealing washer inside the oil gas bucket slot; a barrel cover groove is formed in the lower end face, in contact with the oil core brim, of the barrel cover of the oil gas barrel, and a second O-shaped sealing ring is arranged in the barrel cover groove; and the oil gas barrel cover is provided with a grounding screw, and the grounding screw is connected with a grounding wire. The utility model discloses a structural style of two O shape sealing washer and ground screw can effectively avoid the oil gas bucket bung portion oil seepage fault phenomenon that traditional no asbestos is sealed to fill up damaged, the atress inequality causes, has made things convenient for the daily overhaul and the maintenance work of oil content core, this device simple structure, reasonable in design, low cost, suitable popularization.

Description

Oil-gas separator sealing mechanism for rail transit wind source device

Technical Field

The utility model belongs to the technical field of the railway vehicle production, concretely relates to be used for rail transit wind regime device oil and gas separator sealing mechanism.

Background

The screw type air compressor is an air generating device of a rail transit vehicle air source system, and an oil separator which is a core component of the screw type air compressor is usually used for internally arranging an oil core at the upper part of an oil gas barrel. Due to the special inner and outer airflow channels of the oil core and the cap brim type structure, the upper layer and the lower layer of the oil core cap brim are determined to be completely sealed with the oil-gas barrel and the barrel cover respectively, otherwise, the oil-gas separator is easy to have oil leakage fault, and the train operation is influenced.

At present, the conventional oil core sealing mode is that asbestos-free sealing gaskets are bonded on two lower sides of an oil core brim and are connected with an oil-gas barrel and a barrel cover through bolts uniformly distributed in the circumferential direction to form gas path sealing. Under the conditions of high temperature and high pressure and uneven fastening force of the circumferential bolts, the asbestos-free sealing gasket is easy to damage and age, and particularly, the anti-static metal sheet arranged on the asbestos-free sealing gasket is easy to cause poor local sealing of the asbestos-free sealing gasket, so that the oil-gas mixture in the oil-gas barrel is finally leaked out to influence the use of the product.

Disclosure of Invention

The utility model aims at providing a be used for rail transit wind regime device oil and gas separator sealing mechanism to prior art not enough.

The utility model adopts the following technical scheme:

a sealing mechanism for an oil-gas separator of a rail transit wind source device comprises an oil-gas barrel, an oil-content core and an oil-gas barrel cover, wherein the oil-content core is arranged between the oil-gas barrel and the oil-gas barrel cover; a barrel cover groove is formed in the lower end face, in contact with the oil core brim, of the barrel cover of the oil gas barrel, and a second O-shaped sealing ring is arranged in the barrel cover groove; the upper surface and the lower surface of the brim of the oil core 3 are respectively pressed and sealed with the second O-shaped sealing ring 4 and the first O-shaped sealing ring 2, and finally, the sealing of the inner gas and the outer gas is realized.

Furthermore, the upper surface and the lower surface of the brim of the oil core are smooth, and the surface roughness is not more than Ra3.2.

Furthermore, the oil gas barrel cover is provided with a grounding screw, and the grounding screw is connected with a grounding wire.

Further, a threaded hole is formed in the barrel cover of the oil and gas barrel, and the grounding screw is installed in the threaded hole.

Further, the bottom end of the grounding screw is in contact with the upper surface of the oil core brim, and the grounding screw is not in contact with the O-shaped ring sealing ring.

Further, the oil gas barrel, the oil core and the oil gas barrel cover are fixedly connected through a plurality of fixing bolts.

The utility model has the advantages that:

the utility model adopts the structural form of the double O-shaped sealing ring and the grounding screw to replace the structural form of the traditional non-asbestos sealing gasket and the anti-static metal sheet, can effectively avoid the oil leakage fault phenomenon of the barrel cover part of the oil gas barrel caused by the damage of the non-asbestos sealing gasket, uneven stress and the like, simultaneously facilitates the daily maintenance and the maintenance work of the oil core, improves the utilization rate and the reliability of the screw type air source device of the rail vehicle, and is particularly suitable for the oil-gas separation system of the screw type air source device of the rail transit vehicle; the device has the advantages of simple structure, reasonable design, low cost and suitability for popularization.

Description of the drawings:

FIG. 1 is a schematic structural view of the sealing mechanism of the present invention;

FIG. 2 is a schematic view of the structure of the cover of the oil and gas tank of the present invention;

FIG. 3 is a schematic structural view of the oil-gas separator of the present invention;

the reference numbers in the drawings are: 1. an oil-gas barrel; 2. a first O-ring seal; 3. an oil core; 4. a second O-ring seal; 5. the oil gas barrel cover; 6. a ground screw; 7. fixing the bolt; 8. an oil gas barrel inlet; 9. and an outlet of the oil gas barrel.

The specific implementation mode is as follows:

in order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the utility model provides a be used for rail transit wind regime device oil and gas separator sealing mechanism, including oil gas bucket 1, oil content core 3 and oil gas bucket bung 5, oil content core 3 sets up between oil gas bucket 1 and oil gas bucket bung 5, the periphery of oil content core 3 opening is provided with the brim of a hat, the up end that oil gas bucket 1 and oil content core 3 brim of a hat contact is provided with the oil gas bucket slot, is provided with first O shape sealing washer 2 inside the oil gas bucket slot; a barrel cover groove is formed in the lower end face, in contact with the brim of the oil core 3, of the oil-gas barrel cover 5, and a second O-shaped sealing ring 4 is arranged in the barrel cover groove; the upper surface and the lower surface of the brim of the oil core 3 are respectively pressed and sealed with the second O-shaped sealing ring 4 and the first O-shaped sealing ring 2, and finally, the sealing of the inner gas and the outer gas is realized. This device adopts the structural style of two O shape sealing washers, sets up high temperature resistant O type sealing washer respectively in oil gas bucket and bung installation face slot, does not change oil core 3 structural style, cancels traditional no asbestos seal pad, can effectively stop the oil impregnate phenomenon, and the at utmost reaches sealed effect. The embodiment of the utility model provides an in, surface need level and smooth about the brim of a hat of oil content core 3, roughness is no longer than Ra3.2, satisfies O shape sealing washer operation requirement.

In the embodiment of the utility model, the oil gas barrel cover 5 is provided with the grounding screw 6, and the grounding screw 6 is connected with the grounding wire, so as to prevent the oil core 3 from deflagrating due to static electricity under the condition of high-temperature operation of the lubricating oil of the compressor; a threaded hole is formed in the oil gas barrel cover 5, and the grounding screw 6 is installed in the threaded hole; the bottom end of the grounding screw 6 is in contact with the upper surface of the brim of the oil core 3, and the grounding screw 6 is not in contact with the O-shaped ring sealing ring.

In the embodiment of the utility model, the oil gas barrel 1, the oil core 3 and the oil gas barrel cover 5 are fixedly connected through a plurality of fixing bolts 7; specifically, the number of the fixing bolts 7 is 6.

After the air is compressed by the screw main machine, because more oil-gas mixture is mixed, oil-gas separation and drying treatment must be carried out, and the normal use requirement of the rail transit equipment can be met, the important separation equipment in the process is the oil-gas separator, high-pressure gas enters the oil-gas separator through the oil-gas barrel inlet 8, and after a series of filtering separation, the compressed air is discharged from the oil-gas barrel outlet 9. Wherein, oil content core 3 filters the important part of oil-gas mixture in the oil-gas separator, at rail transit vehicle operation in-process, owing to need regularly change, oil gas bucket bung 5 dismantles comparatively frequently, and two surfaces are all sealed intact about guaranteeing oil content core 3, prevent that the oil leakage fault phenomenon from taking place, so propose the utility model discloses the device.

The utility model discloses the principle as follows: during the equipment, install first O shape sealing washer 2, oil content core 3, second O shape sealing washer 4, oil gas bucket bung 5, earth screw 6 on oil gas bucket 1 in proper order, wherein, first O shape sealing washer 2 is installed in the O shape circle ditch inslot of 1 up end of oil gas bucket, and second O shape sealing washer 4 is installed in the O shape circle ditch inslot of 5 lower terminal surfaces of oil gas bucket bung, and oil content core 3 is in between the two, fixes the three together through six fixing bolt 7 at last. Due to the sealing characteristic of the O-ring, even if the fastening force of the six fixing bolts 7 is not uniform at the time of assembly, the leakage phenomenon does not occur. The upper surface and the lower surface of the brim of the oil core 3 are pressed and sealed with the O-shaped sealing ring, so that the sealing of the inner gas and the outer gas is finally realized.

It is noted that, for preventing oil core 3 because of the detonation accident of static emergence under the operation of lubricating oil high temperature, the utility model designs a special anti-static structure, connect through oil gas bucket bung 5, oil core 3 and oil gas bucket 1 through ground screw 6, link to each other with automobile body ground connection position through the earth connection at last, can effectively stop electrostatic phenomenon and take place.

When changing oil core 3, dismantle six fixing bolt 7, oil gas bucket bung 5 in proper order can to change first O shape sealing washer 2, oil core 3 and the second O shape sealing washer 4 that new respectively, then can according to the equipment order after the installation.

The utility model discloses replaced the structural style of traditional no asbestos seal pad and antistatic metal piece, adopted two O shape sealing washer and ground screw's structural style, can effectively avoid because of the sealed damage of no asbestos seal pad, the uneven oily fault phenomenon of oil gas bucket cover portion oil seepage that causes of atress, made things convenient for the daily overhaul and the maintenance work of oil content core simultaneously, improved rail vehicle screw type wind regime device's rate of utilization and reliability, be particularly suitable for rail vehicle screw type wind regime device's oil-gas separation system.

Above only the utility model discloses an it is the preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the technical scheme under the thinking of the utility model discloses a scope of protection should point out, to the ordinary technical personnel of this technical field, is not deviating from the utility model discloses a plurality of improvements and moist decorations under the principle prerequisite should be regarded as the utility model discloses a scope of protection.

Claims (6)

1. The oil-gas separator sealing mechanism for the rail transit wind source device is characterized by comprising an oil-gas barrel (1), an oil-gas core (3) and an oil-gas barrel cover (5), wherein the oil-gas core (3) is arranged between the oil-gas barrel (1) and the oil-gas barrel cover (5), a brim is arranged on the periphery of an opening of the oil-gas core (3), an oil-gas barrel groove is formed in the upper end face, in contact with the brim of the oil-gas barrel (1), of the oil-gas barrel (3), and a first O-shaped sealing ring (2) is arranged inside the oil-gas barrel groove; a barrel cover groove is formed in the lower end face, in contact with the brim of the oil core (3), of the barrel cover (5) of the oil gas barrel, and a second O-shaped sealing ring (4) is arranged in the barrel cover groove; the upper surface and the lower surface of the brim of the oil core (3) are respectively pressed and sealed with the second O-shaped sealing ring (4) and the first O-shaped sealing ring (2), so that the sealing of the inner gas and the outer gas is realized.

2. The sealing mechanism for the rail transit wind source device oil-gas separator is characterized in that the upper surface and the lower surface of the brim of the oil core (3) are smooth, and the surface roughness Ra is not more than 3.2.

3. The oil-gas separator sealing mechanism for the rail transit wind source device is characterized in that a grounding screw (6) is arranged on the oil-gas barrel cover (5), and the grounding screw (6) is connected with a grounding wire.

4. The sealing mechanism for the oil and gas separator of the rail transit wind source device is characterized in that a threaded hole is formed in the oil and gas barrel cover (5), and the grounding screw (6) is installed in the threaded hole.

5. The sealing mechanism for the rail transit wind source device oil-gas separator is characterized in that the bottom end of the grounding screw (6) is in contact with the upper surface of the oil core (3) visor, and the grounding screw (6) is not in contact with an O-shaped ring sealing ring.

6. The sealing mechanism for the oil-gas separator of the rail transit wind source device is characterized in that the oil-gas barrel (1), the oil core (3) and the oil-gas barrel cover (5) are fixedly connected through a plurality of fixing bolts (7).

Images