CN217976594U

CN217976594U - Two-stage screw air compressor with oil-cut-off protection structure

Info

Publication number: CN217976594U
Application number: CN202221325899.0U
Authority: CN
Inventors: 吴春豪
Original assignee: Wuxi Oupeng Electrical Machinery Co ltd
Current assignee: Wuxi Oupeng Electrical Machinery Co ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2022-12-06
Anticipated expiration: 2032-05-30

Abstract

The utility model discloses a doublestage screw compressor machine with fuel cut-off protection architecture, including the installation casing, fixed mounting has a doublestage screw shell on the side of installation casing, the inside of installation casing is provided with the driving medium, double screw drive connect in the output of driving medium, doublestage screw shell outside is provided with the oil feed canal, the inside of oil feed canal is provided with lubricated subassembly. This doublestage screw compressor with fuel cut-off protection architecture, be located the inboard fuel feeding canal of two-stage screw shell through the setting, simultaneously through setting up the inside push-and-pull cylinder of fuel feeding canal, the slider, atomizer, can make the inside storage of fuel feeding canal be independent of lubricating system's lubricating oil can in time carry out the fuel feeding to the twin-screw, reduce the wearing and tearing that direct rotation produced, simultaneously through setting up the holding tank, the collecting vat, oil pipe, communicating pipe, the fuel feeding circulates, guaranteed that this fuel feeding architecture's use loss is low, the operation is permanent, the practicality of device has been improved.

Description

Doublestage screw compressor with fuel cut-off protection architecture

Technical Field

The utility model relates to a double screw air compressor machine technical field, in particular to doublestage screw air compressor machine with fuel cut-off protection architecture.

Background

The double-screw air compressor is a double-shaft positive displacement rotary air compressor, and the double-screw air compressor has a simple main machine structure and almost no easily damaged parts, so that the main machine is reliable in operation and long in service life.

Twin-screw air compressor machine embeds has scram protection mechanism for air compressor machine shutdown protection under the trouble condition, when nevertheless the air compressor machine shuts down after the restart, because the return circuit of the inside hydraulic oil of air compressor machine is cut off for hydraulic oil exists in the storage cavity in a large number, makes the screw rod external lubrication of air compressor machine not enough, has increased pivoted wearing and tearing, and the long life who reduces the air compressor machine this provides a doublestage screw air compressor machine with fuel cut-off protection architecture to this, solves the above-mentioned problem that provides.

Disclosure of Invention

The utility model discloses a main aim at provides a doublestage screw compressor machine with fuel cut-off protection architecture to solve the doublestage screw compressor machine that has fuel cut-off protection architecture and shut down the back lubricating oil supply not timely enough technical problem.

In order to realize the purpose of the utility model, the utility model provides a two-stage screw air compressor with fuel cut-off protection structure, which comprises an installation shell, wherein a two-stage screw shell is fixedly installed on one side surface of the installation shell, a transmission part is arranged inside the installation shell, two screws are rotatably installed inside the two-stage screw shell and are connected with the output end of the transmission part in a transmission way, an oil supply channel is arranged outside the two-stage screw shell, and a lubricating component is arranged inside the oil supply channel;

the lubricating assembly comprises a push-pull cylinder arranged inside the oil supply channel, a sliding block is fixedly mounted at the output end of the push-pull cylinder, an atomizing nozzle extending to the inner side of the double-stage screw shell is fixedly mounted on the connecting side wall of the oil supply channel and the double-stage screw shell and is a one-way nozzle, a storage tank is fixedly mounted at the bottom of the oil supply channel, a communicating pipe is arranged on the inner bottom wall of the oil supply channel in a penetrating and sliding mode, one-way valve clacks are fixedly mounted at the two ends of the communicating pipe, and sealing rings are fixedly mounted at the outer portions of the two ends of the communicating pipe.

Preferably, the number of the two-stage screw shells is two, an oil supply channel is fixedly installed between the two-stage screw shells, an annular protrusion is fixedly installed on the inner wall of the oil supply channel, and the inner diameter of the annular protrusion is smaller than the inner diameter length of the oil supply channel.

Preferably, the outside cover of slider is equipped with the rubber sleeve, the rubber sleeve closely laminate in annular bellied inner wall.

Preferably, the communicating pipe extends to the one-way valve clack of the inside one end of holding tank with fixed mounting has the dead lever between the inner wall in oil feed canal, the dead lever run through sliding connection in the sealing washer, extend to the inside one of holding tank on the sealing washer with fixed mounting has the spring between the outer wall in oil feed canal.

Preferably, a collecting tank is fixedly mounted at the bottom of the double-stage screw shell, and the collecting tank is communicated with the inner bottom wall of the double-stage screw shell through a communication hole.

Preferably, an oil pipe is communicated between the collecting tank and the storage tank.

Preferably, the check valve flap is turned over and opened towards two ends of the communication pipe.

This doublestage screw compressor with fuel cut-off protection architecture, be located the inboard fuel feeding canal of two-stage screw shell through the setting, simultaneously through setting up the inside push-and-pull cylinder of fuel feeding canal, the slider, atomizer, can make the inside storage of fuel feeding canal be independent of lubricating system's lubricating oil can in time carry out the fuel feeding to the twin-screw, reduce the wearing and tearing that direct rotation produced, simultaneously through setting up the holding tank, the collecting vat, oil pipe, communicating pipe, the fuel feeding circulates, guaranteed that this fuel feeding architecture's use loss is low, the operation is permanent, the practicality of device has been improved.

Drawings

FIG. 1 is a top view of the present invention;

FIG. 2 is a schematic diagram of a side view structure of the oil supply channel of the present invention;

fig. 3 is a side view of the present invention.

The realization, functional characteristics and advantages of the utility model will be further explained by the embodiments with reference to the attached drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 3, the two-stage screw air compressor with oil cut-off protection structure in this embodiment includes an installation casing 1, a two-stage screw shell 2 is fixedly installed on a side surface of the installation casing 1, a transmission member 4 is disposed inside the installation casing 1, the transmission member 4 may be a motor for inputting mechanical kinetic energy, a double screw 3 is rotatably installed inside the two-stage screw shell 2, the double screw 3 is connected to an output end of the transmission member 4 in a transmission manner, and the double screw 3 can be driven to operate by the transmission member 4.

In this embodiment, the quantity of doublestage screw shell 2 is two, and fixed mounting has the oil feed canal 5 between two doublestage screw shells 2, and fixed mounting has annular arch 6 on the inner wall of oil feed canal 5, and the internal diameter of annular arch 6 is less than the internal diameter length of oil feed canal 5, can separate into two cavity regions with oil feed canal 5 through annular arch 6 for installation driving piece and storage lubricating oil.

In this embodiment, the inside of oil supply canal 5 is provided with lubricating component for the twin-screw 3 after the secondary shutdown supplies oil for lubrication, lubricating component includes that fixed mounting is located the push-and-pull cylinder 7 on protruding 6 a side of annular in oil supply canal 5 inside, the inseparable slidable mounting in the inboard of protruding 6 of annular has slider 8, slider 8 fixed connection is in the output of push-and-pull cylinder 7, can pull slider 8 through push-and-pull cylinder 7 and slide on the inner wall of protruding 6 of annular to change the pressure in the protruding 5 a side of oil supply canal.

In order to improve the air tightness of one side of the oil supply channel 5, the rubber sleeve 9 is sleeved outside the sliding block 8 and can be tightly attached to the inner wall of the annular protrusion 6 through the rubber sleeve 9, so that the effective sliding connection between the sliding block 8 and the inner wall of the annular protrusion 6 is ensured.

In this embodiment, the atomizing nozzle 10 extending to the inner side of the two-stage screw casing 2 is fixedly installed on the connecting side wall of the oil supply channel 5 and the two-stage screw casing 2, and the atomizing nozzle 10 is a one-way nozzle, so that the air tightness inside the oil supply channel 5 is ensured, the space inside the oil supply channel 5 can be extruded, and the lubricating oil can be extruded under pressure to be injected into the two-stage screw casing 2 through the atomizing nozzle 10 to complete lubrication.

In addition, the bottom fixed mounting of feed canal 5 has holding tank 16, runs through slidable mounting on the interior diapire of feed canal 5 and has communicating pipe 11, all fixed mounting has check valve clack 12 on the both ends of communicating pipe 11, and check valve clack 12 is opened towards the upset of both ends in communicating pipe 11 to make the inside lubricating oil of feed canal 5 unable towards the inside circulation of holding tank 16, and the inside lubricating oil of holding tank 16 under the natural state also unable entering feed canal 5's inside.

The outside all fixed mounting in both ends of communicating pipe 11 has sealing washer 13, sealing washer 13 can be injectd communicating pipe 11 towards the gliding extreme position in both ends, thereby confirmed the home range of communicating pipe 11, fixed mounting has dead lever 14 between communicating pipe 11 extends the one-way valve clack 12 of the inside one end of holding tank 16 and the inner wall of oil feed canal 5, dead lever 14 runs through sliding connection in sealing washer 13, can be when communicating pipe 11 slides and extends towards the inside in oil feed canal 5, fix the position of one-way valve clack 12 by dead lever 14, and make the lower extreme of communicating pipe 11 open, in order to accomplish the restoration to communicating pipe 11, fixed mounting has spring 15 between the outer wall of sealing washer 13 that extends to the inside one end of holding tank 16 and oil feed canal 5, spring 15 promotes sealing washer 13 and slides and extends towards the inside of holding tank 16.

It can be understood that, the bottom fixed mounting of doublestage screw shell 2 has collecting vat 17, and collecting vat 17 passes through the intercommunicating pore and communicates in the interior diapire of doublestage screw shell 2 to can collect the inside lubricated liquid that stores up of doublestage screw shell 2, the intercommunication has oil pipe 18 between collecting vat 17 and the holding tank 16, can communicate through oil pipe 18, thereby can realize the circulation to supply with to the inside lubricating oil of doublestage screw shell 2, has guaranteed the effective supply after the oil-break, realizes the protection.

The working principle of the above embodiment is as follows:

push-and-pull is repeated through drive push-and-pull cylinder 7, make push-and-pull cylinder 7 drive slider 8 on the output and slide along 6 inner walls of annular arch, make the inboard pressure of storage canal 5 change, when pressure reduces, make communicating pipe 11 extend towards the inside slip of oil feed canal 5, the one end that communicating pipe 11 is located holding tank 16 inside at this moment is opened, and make lubricating oil get into the inside of oil feed canal 5, when the inside atmospheric pressure of oil feed canal 5 increases, make lubricating oil pass through atomizer 10 and accomplish the fuel feeding towards the inside injection of two-stage screw shell 2.

The above is only the preferred embodiment of the present invention, and the patent scope of the present invention is not limited thereby, and all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings of the present invention, or directly or indirectly applied to other related technical fields, are included in the same way in the patent protection scope of the present invention.

Claims

1. A double-stage screw air compressor with an oil-cut-off protection structure comprises a mounting shell (1) and is characterized in that a double-stage screw shell (2) is fixedly mounted on one side face of the mounting shell (1), a transmission piece (4) is arranged inside the mounting shell (1), a double screw (3) is rotatably mounted inside the double-stage screw shell (2), the double screw (3) is connected to the output end of the transmission piece (4) in a transmission manner, an oil supply channel (5) is arranged outside the double-stage screw shell (2), and a lubricating assembly is arranged inside the oil supply channel (5);

the lubricating assembly comprises a push-pull cylinder (7) arranged inside an oil supply channel (5), a sliding block (8) is fixedly mounted at the output end of the push-pull cylinder (7), the oil supply channel (5) and the connecting side wall of the two-stage screw shell (2) are fixedly mounted with an atomizing nozzle (10) extending to the inner side of the two-stage screw shell (2), the atomizing nozzle (10) is a one-way nozzle, a storage tank (16) is fixedly mounted at the bottom of the oil supply channel (5), a communicating pipe (11) is slidably mounted on the inner bottom wall of the oil supply channel (5) in a penetrating mode, one-way valve flaps (12) are fixedly mounted at two ends of the communicating pipe (11), and sealing rings (13) are fixedly mounted at the outer portions of the two ends of the communicating pipe (11).

2. The two-stage screw air compressor with the oil-break protection structure as claimed in claim 1, wherein the number of the two-stage screw shells (2) is two, an oil supply channel (5) is fixedly installed between the two-stage screw shells (2), an annular protrusion (6) is fixedly installed on the inner wall of the oil supply channel (5), and the inner diameter of the annular protrusion (6) is smaller than the length of the inner diameter of the oil supply channel (5).

3. The two-stage screw air compressor with oil-cut-off protection structure as claimed in claim 2, characterized in that the outside of the slider (8) is sleeved with a rubber sleeve (9), and the rubber sleeve (9) is closely attached to the inner wall of the annular protrusion (6).

4. The two-stage screw air compressor with oil-break protection structure as claimed in claim 1, wherein a fixing rod (14) is fixedly installed between the one-way valve flap (12) extended to the end inside the storage tank (16) and the inner wall of the oil supply channel (5) by the communication pipe (11), the fixing rod (14) is connected to the sealing ring (13) in a penetrating and sliding manner, and a spring (15) is fixedly installed between the sealing ring (13) extended to the end inside the storage tank (16) and the outer wall of the oil supply channel (5).

5. The two-stage screw air compressor with oil-break protection structure as claimed in claim 1, characterized in that a collecting groove (17) is fixedly installed at the bottom of the two-stage screw shell (2), and the collecting groove (17) is communicated with the inner bottom wall of the two-stage screw shell (2) through a communication hole.

6. The dual stage screw air compressor with oil shut-off protection as claimed in claim 5, characterized in that an oil pipe (18) is connected between said collection tank (17) and said storage tank (16).

7. The two-stage screw air compressor with oil-break protection structure as claimed in claim 1, wherein said check valve flap (12) is turned open toward both ends of said communication pipe (11).