CN217926088U

CN217926088U - Lubricating oil pump

Info

Publication number: CN217926088U
Application number: CN202222384383.XU
Authority: CN
Inventors: 郝猛; 刘莹; 宓建; 刘文昭; 李海超
Original assignee: Xiamen Zhongguanneng Gas Turbine Technology Co ltd
Current assignee: Xiamen Zhongguanneng Gas Turbine Technology Co ltd
Priority date: 2022-09-08
Filing date: 2022-09-08
Publication date: 2022-11-29
Anticipated expiration: 2032-09-08

Abstract

The utility model provides a lubricating oil pump, belongs to gas turbine technical field, including motor, shaft coupling, the hydraulic pump that connects gradually, the hydraulic pump side links to each other with export return bend subassembly, still includes bell jar, installation panel, hydraulic pump and shaft coupling hookup location department set up on the installation panel, the installation panel top links to each other with the bottom of bell jar is fixed, the top and the motor bottom of bell jar are fixed continuous, the shaft coupling is arranged in the bell jar. The utility model discloses a be set up the link and be connected with mounting panel for bell jar, the export return bend runs through the mounting panel, passes through flange joint in the mounting panel top, and the structure of simplifying the link changes export return bend mounting means simultaneously, realizes reducing the processing degree of difficulty, and the simple installation saves the purpose of cost.

Description

Lubricating oil pump

Technical Field

The utility model belongs to the technical field of gas turbine, especially, relate to a lubricating oil pump.

Background

The lubricating oil system is one of the important systems of the gas turbine complete set unit and the test bed equipment, and provides clean lubricating oil with sufficient quantity, proper temperature and pressure for the bearings of the generator and the gearbox. As shown in fig. 1, in the lubricating oil system, a lubricating oil pump assembly 2 pumps lubricating oil out of an oil tank 1 and ensures that the pressure and the flow of the lubricating oil after pumping meet requirements; an overflow type self-standing pressure regulating valve 3 arranged on a bypass regulates the pressure of a lubricating oil main pipe; the lubricating oil cooler 4 is combined with a temperature control valve 5 in the system to regulate the lubricating oil supply temperature; the lubricating oil double-oil filter 6 filters impurities in the lubricating oil, and the cleanliness of the lubricating oil in the oil supply pipeline is ensured.

The structure of the lubricating oil pump assembly 2 of the existing unit set or rack equipment is shown in fig. 2, and generally comprises a motor 7, a coupling 8, a coupling frame 9, a hydraulic pump 10, an oil suction filter 11, an outlet elbow assembly 12 and a connecting piece. The structure of the connecting frame 9 is as shown in fig. 3, and is formed by welding three machined first connecting plates 9-1, second connecting plates 9-3, third connecting plates 9-4 and connecting pipes 9-2, and the end faces of the connecting plates connected with the motor, the hydraulic pump and the outlet elbow component are required to be subjected to combined machining, particularly, at the position where the outlet elbow component is connected to one side of the second connecting plate 9-3, the outlet elbow, the elbow flange, the connecting pipe, the elbow, the cover plate flange and the sealing piece are assembled on the second connecting plate 9-3, so that connecting grooves are required to be machined at the upper and lower parts of the position of the outlet elbow component of the second connecting plate 9-3, and in order to ensure the tight subsequent installation, higher requirements are required on the machining flatness and coaxiality of the grooves of the second connecting plate 9-3. Therefore, the connecting frame of the existing lubricating oil pump has the defects of complex structure, large machining amount, high precision requirement, large workload of field installation and maintenance, high corresponding manufacturing cost and long processing period; the outlet elbow assembly is connected with the connecting frame through the cover plate flange, the oil supply pipe flange and the sealing gasket which are connected through bolts, so that the number of parts is large, and the difficulty in field installation and maintenance is high.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcoming, the deficiency of prior art, the utility model provides a lubricating oil pump is connected with mounting panel through setting up the link span as bell jar, and the export return bend runs through the mounting panel, passes through flange joint in the mounting panel top, and the structure of simplifying the link span changes export return bend mounting means simultaneously, realizes reducing the processing degree of difficulty, and the simple installation saves the purpose of cost.

In order to achieve the above object, the utility model discloses a main technical scheme include:

the utility model provides a lubricating oil pump, includes motor, shaft coupling, the hydraulic pump that connects gradually, and the hydraulic pump side links to each other with export return bend subassembly, still includes bell jar, installation panel, hydraulic pump and shaft coupling hookup location department set up on the installation panel, installation panel top links to each other with the bottom of bell jar is fixed, the top and the motor bottom of bell jar are fixed continuous, the shaft coupling is arranged in the bell jar. The bell-shaped cover is connected with the motor and the mounting panel through flanges and bolts.

The utility model discloses a form that bell-shaped cover and installation panel combine replaces original hookup frame, realizes supporting the purpose of installation motor, shaft coupling, hydraulic pump and outlet pipe, reduces connecting device's machine tooling volume, practices thrift the cost.

Furthermore, a through hole for the outlet bent pipe assembly to penetrate through is formed in one side of the bell-shaped cover on the mounting panel, and the outlet bent pipe assembly penetrates through the mounting panel and then is connected with the lubricating oil supply pipe. The outlet elbow assembly is connected with the lubricating oil supply pipe through a flange, and the flange joint is positioned above the mounting panel.

The utility model discloses a change the mounting means of export return bend, supply the oil pipe change to run through the installation panel for the export return bend by original installation export return bend, flange and the lubricating oil on the link, export return bend, flange and the connection that the lubricating oil supplied the oil pipe in the installation panel top, reduce the machining volume and the precision of installation panel, reduce installation work volume, practice thrift the cost. The outlet elbow component can be integrally drawn out from the mounting panel during maintenance, the work of flange decomposition at the connecting frame in the original scheme is simplified, the maintenance process is simplified, and the maintenance operability is improved.

Furthermore, the inner diameter of the through hole is larger than the outer diameter of the outlet elbow, and a dust cover is arranged above the through hole on the mounting panel and covers a gap between the through hole and the outlet elbow. The purpose of preventing dust from entering the oil tank through the gap between the outlet elbow and the through hole of the mounting panel is achieved.

The beneficial effects of the utility model are that:

1. the utility model adopts the form of combining the bell-shaped cover and the installation panel to replace the original connecting frame and realize the purpose of supporting and installing the motor, the shaft coupling, the hydraulic pump and the outlet pipe, and the utility model has the advantages of simple structure, easy processing, reduced machining amount and precision of the connecting device, reduced manufacturing cost and shortened manufacturing period;

2. the utility model discloses a change the mounting means of export return bend, supply the oil pipe change to run through the installation panel for the export return bend by original installation export return bend, flange and the lubricating oil on the link, export return bend, flange and the connection that the lubricating oil supplied the oil pipe in the installation panel top, reduce the machining volume and the precision of installation panel, reduce installation work volume, practice thrift the cost. When in maintenance, the outlet elbow component can be integrally pulled out from the mounting panel, so that the work of disassembling the flange at the connecting frame in the original scheme is simplified, the maintenance process is simplified, and the maintenance operability is improved;

3. the utility model discloses a be equipped with the dust cover that covers the gap between through hole and the export return bend above the through hole on the installation panel, play and prevent that the dust from getting into the purpose of oil tank through the gap between export return bend and the installation panel through hole.

Drawings

FIG. 1 is a schematic diagram of a conventional oil system;

FIG. 2 is a schematic view of a conventional lubricating oil pump;

FIG. 3 is a schematic view of a conventional coupling rack;

fig. 4 is a schematic structural view of the lubricating oil pump of the present invention.

In the figure: the device comprises an oil tank 1, an oil pump 2, an overflow type self-standing pressure regulating valve 3, an oil cooler 4, a temperature control valve 5, a double oil filter 6 for oil, a motor 7, a coupler 8, a coupling frame 9, a first connecting plate 9-1, a connecting pipe 9-2, a second connecting plate 9-3, a third connecting plate 9-4, a hydraulic pump 10, an oil filter 11, an outlet elbow assembly 12, a bell-shaped cover 13, a mounting panel 14, an oil supply pipe 15 and a dust cover 16.

Detailed Description

For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.

As shown in fig. 4, the utility model relates to a lubricating oil pump, including motor 7, shaft coupling 8, the hydraulic pump 10 that connects gradually, the hydraulic pump 10 side links to each other with export return bend subassembly 12, takes out the lubricating oil in by oil tank 1 and supplies generator, gear box lubricating oil to supply.

The utility model discloses a lubricating oil pump still includes bell jar 13, installation panel 14, hydraulic pump 10 and the fixed position department of shaft coupling 8 hookup location set up on installation panel 14, installation panel 14 top links to each other with bell jar 13's bottom is fixed, bell jar 13's top links to each other with motor 7 bottom is fixed, shaft coupling 8 is arranged in bell jar 13. The bell-shaped cover 13 is connected with the motor 7 and the mounting panel 14 through flanges and bolts, and is used for fixedly supporting the motor 7 and the hydraulic pump 10 and protecting the coupler 8. The utility model discloses a form that bell jar 13 and installation panel 14 combine replaces original link 9, realizes supporting the purpose of installation motor 7, shaft coupling 8, hydraulic pump 10 and export return bend, and bell jar 13 can choose for use current bell jar, its size and fixed mode play connect and the supporting role can, need not accurate matching size, further reduce machining and manufacturing cost. The utility model has the advantages of simple structure, easily processing has reduced connecting device's machining volume and precision, has reduced manufacturing cost, has compressed manufacturing cycle.

A through hole for the outlet elbow component 12 to pass through is formed in one side of the bell-shaped cover 13 on the mounting panel 14, and the outlet elbow component 12 is connected with the lubricating oil supply pipe 15 after passing through the mounting panel 14. The inner diameter of the through hole is larger than the outer diameter of the outlet elbow, so that the outlet elbow can be conveniently installed and detached in a penetrating mode. The outlet elbow assembly 12 is connected to the oil supply pipe 15 via a flange, and the flange connection is located above the mounting panel 14.

The utility model discloses a change the mounting means of export return bend, supply oil pipe 15 change to run through installation panel 14 for the export return bend by installation export return bend, flange and the lubricating oil originally on link 9, export return bend, flange and the connection that lubricating oil supplied oil pipe 15 in installation panel 14 top, reduce installation panel 14's machining volume and precision, reduce the installation work volume, practice thrift the cost. During maintenance, the outlet elbow component 12 can be integrally drawn out from the mounting panel, the work of disassembling the flange at the connecting frame in the original scheme is simplified, the maintenance process is simplified, and the maintenance operability is improved.

A dust cover 16 is arranged above the through hole on the mounting panel 14, and the dust cover 16 covers a gap between the through hole and the outlet elbow. The dust cover for covering the gap between the through hole and the outlet bent pipe is arranged above the through hole on the mounting panel, so that the purpose of preventing dust from entering the oil tank through the gap between the outlet bent pipe and the through hole of the mounting panel is achieved.

The working process is as follows:

the bottom of a motor 7 is connected with the top of a bell-shaped cover 13 through a flange and a bolt, a coupler 8 is arranged in the bell-shaped cover 13, the bottom of the bell-shaped cover 13 is connected with the top of an installation panel 14 through a flange and a bolt, a hydraulic pump 10 is connected with the coupler 8, one end of an outlet elbow component 12 is connected with the hydraulic pump 10, the other end of the outlet elbow penetrates through a through hole in the installation panel 14, the upper part of the installation panel 14 is connected with a lubricating oil supply pipe 15 through a bolt and a flange, a dust cover 16 is arranged above the through hole in the installation panel 14, the dust cover 16 covers the gap between the through hole and the outlet elbow, and dust is prevented from entering an oil tank through the gap between the outlet elbow and the through hole in the installation panel.

The lubricating oil pump assembly 2 pumps out the lubricating oil from the oil tank 1, the lubricating oil is filtered by the oil absorption filter 11, and then the pressure of a lubricating oil main pipe is adjusted by the overflow type self-standing pressure adjusting valve 3 arranged on the bypass; the lubricating oil cooler 4 is combined with a temperature control valve 5 in the system to regulate the lubricating oil supply temperature; the lubricating oil double-oil filter 6 filters impurities in the lubricating oil, and the lubricating oil subjected to temperature control through filtering is sent to a generator and a gear box to realize the supply of the lubricating oil.

While embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that modifications, alterations, substitutions and variations may be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. The utility model provides a lubricating oil pump, includes motor (7), shaft coupling (8), hydraulic pump (10) that connect gradually, and hydraulic pump (10) side links to each other its characterized in that with export return bend subassembly (12): the hydraulic pump is characterized by further comprising a bell-shaped cover (13) and a mounting panel (14), the connecting position of the hydraulic pump (10) and the coupler (8) is arranged on the mounting panel (14), the upper portion of the mounting panel (14) is fixedly connected with the bottom of the bell-shaped cover (13), the top of the bell-shaped cover (13) is fixedly connected with the bottom of the motor (7), and the coupler (8) is arranged in the bell-shaped cover (13).

2. The lubricating oil pump according to claim 1, characterized in that: the installation panel (14) is provided with a through hole for the outlet elbow component (12) to penetrate through on one side of the bell-shaped cover (13), and the outlet elbow component (12) penetrates through the installation panel (14) and then is connected with the lubricating oil supply pipe (15).

3. The lubricating oil pump according to claim 2, characterized in that: the inner diameter of the through hole is larger than the outer diameter of the outlet elbow, a dust cover (16) is arranged above the through hole on the mounting panel (14), and the dust cover (16) covers a gap between the through hole and the outlet elbow.

4. The lubricating oil pump according to claim 2, characterized in that: the outlet elbow assembly (12) is connected with the lubricating oil supply pipe (15) through a flange and a bolt, and the flange connection position is located above the mounting panel (14).

5. The lubricating oil pump according to claim 1, characterized in that: the bell-shaped cover (13) is connected with the motor (7) and the mounting panel (14) through flanges and bolts.