CN217380666U

CN217380666U - Technological oil sealing plug of turbine cooler

Info

Publication number: CN217380666U
Application number: CN202220782824.9U
Authority: CN
Inventors: 魏巍; 杨昌宝; 李申顿; 张佑; 万程鹏
Original assignee: AVIC Jincheng Nanjing Engineering Institute of Aircraft Systems
Current assignee: AVIC Jincheng Nanjing Engineering Institute of Aircraft Systems
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-09-06
Anticipated expiration: 2032-04-02

Abstract

The utility model belongs to the field of assembly of turbine coolers of aviation environmental control systems, and relates to a process oil sealing plug of a turbine cooler, which comprises a small screw plug, a rubber pad and an upper cover; the upper cover is tightly connected with the small screw plug through threads, and the small screw plug is provided with a rubber pad groove for stacking a rubber pad; a thermocouple wire for temperature monitoring measurement is drawn from the through-hole of little plug screw, cushion and upper cover, compresses tightly the cushion after the upper cover is connected fixedly with little plug screw, blocks the leakage path of lubricating oil from the gap department of wire and through-hole to guarantee sealed effect. The utility model provides a turbine cooler in the process of the test, need use the lubricating oil leakage problem that the technology end cap easily takes place for the temperature measurement, the utility model provides a turbine cooler test reliability is improved.

Description

Technological oil sealing plug of turbine cooler

Technical Field

The utility model belongs to aviation environmental control system turbine cooler's assembly field, concretely relates to turbine cooler technology oil shutoff end cap.

Background

Temperature measurement and monitoring of ball bearings during operation of a turbo cooler is an important means of verifying that the turbo cooler is operating abnormally. In order to measure the temperature of the roller bearing, a thermocouple type temperature sensor is generally installed, a metal part of the thermocouple is close to the roller bearing, and a lead wire part of the thermocouple is led out from a shell of the turbine cooler to be connected with a display instrument system.

The sealing performance of the lubricating oil directly affects the reliability of the turbine cooler, and a thermocouple lead needs to be led out of the shell for temperature measurement and monitoring, which brings great uncertainty to the sealing of the lubricating oil. According to the traditional mode, a through hole is usually processed on a formal plug, and a lead is directly led out from the through hole to realize temperature measurement, but the method has great defects, and lubricating oil overflows from a gap between the through hole of the screw plug and the thermocouple lead due to different pressures of an inner cavity and an outer cavity of the shell in the test process, thereby bringing great influence to the reliability of a product. The technical oil sealing plug can meet the requirement that a lead penetrates out to realize temperature measurement and can ensure the sealing property of lubricating oil, and the technical oil sealing plug is a solution for improving the reliability of a product.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a turbine cooler technology seals oil end cap, thermocouple wire follow technology oil seal end cap's little plug and draw forth, compresses tightly the wire with the two-layer cushion of taking the eccentric orfice, draws forth from technology oil seal blanking cover again, and the upper cover is screwed up with little plug and is made cushion and wire closely laminate, blocks the leakage route of lubricating oil to guarantee the oil seal effect.

The technical scheme is as follows: a technological oil sealing plug of a turbine cooler comprises a small screw plug, a rubber pad and an upper cover; the upper cover is tightly connected with the small screw plug through threads, and the small screw plug is provided with a rubber pad groove for stacking a rubber pad; a thermocouple wire for temperature monitoring measurement is drawn from the through-hole of little plug screw, cushion and upper cover, compresses tightly the cushion after the upper cover is connected fixedly with little plug screw, blocks the leakage path of lubricating oil from the gap department of wire and through-hole to guarantee sealed effect.

Furthermore, both ends of the small screw plug are provided with thread structures, and bottom threads can be connected and fixed in threaded holes of the test piece.

Furthermore, the rubber pad through holes are distributed eccentrically.

Furthermore, the rubber mat is made of silicon rubber, and the temperature measuring lead can be compressed by the soft rubber mat without damaging the lead.

Furthermore, the middle section of the small screw plug is provided with a hexagonal boss, so that the installation and adjustment are convenient.

Further, the periphery of the upper cover is provided with a knurl.

The beneficial technical effects are as follows: the technical oil sealing plug of the turbine cooler can replace a screw plug of a traditional straight-through hole, not only can meet the signal transmission of a thermocouple temperature sensor, but also can ensure the sealing effect of lubricating oil, thereby improving the reliability of the turbine cooler.

Drawings

FIG. 1 is a block diagram of a turbine cooler with thermocouple temperature sensors;

FIG. 2 is a view of a turbine cooler process oil shutoff plug;

FIG. 3 is a schematic view of the oil-plugging plug of the present invention;

wherein, the plug comprises 1-a small screw plug, 2-a rubber pad, 3-an upper cover, 4-a thermocouple, 5-a traditional plug and 6-a shell.

Detailed Description

The present invention now will be described more fully hereinafter with reference to the accompanying drawings, or specific embodiments, in which some, but not all of the disclosed examples are shown. Indeed, many different examples may be described and should not be construed as limited to only the examples set forth herein. Rather, these examples are described to further illustrate the positive effects of the present invention and are not exhaustive as is known or routine in the art.

Please refer to fig. 1-3 of the specification.

Fig. 1 is a structural diagram of a housing with a thermocouple of a turbine cooler, wherein the head of the thermocouple 5 penetrates through a bearing housing of the turbine cooler, a lead is led out from the housing 6 and then penetrates out of a through hole of a traditional plug 5, the plug screw 5 is fixed at a plug screw hole of the housing 6, and the traditional plug 5 has poor sealing performance.

Referring to the attached figure 2, the utility model relates to a turbine cooler process oil sealing plug, which comprises a small screw plug 1, a rubber pad 2 and an upper cover 3;

wherein, the rubber pad 2 is embedded in the inner cavity of the small plug screw 1, the small plug screw 1 is fixedly connected with the upper cover 3 through screw threads, and the rubber pad 2 is pressed tightly. Two ends of the small screw plug 1 are provided with thread structures, and bottom threads can be connected and fixed in threaded holes of a test piece.

In the specific implementation process, the rubber cushion 2 is made of rubber materials, and the temperature measuring lead can be compressed tightly without damaging the lead due to soft texture. The small screw plug 1, the rubber mat 2 and the upper cover 3 are all provided with 2 mm through holes. 2 mm through holes of the rubber pad 2 are eccentrically distributed; the inner cavity of the small screw plug 1 adopts an eccentric hole and is matched with the eccentricity of a rubber gasket to realize improved sealing.

Fig. 3 is a schematic view of the oil-plugging plug of the turbine cooler. The lead of the thermocouple 4 is led out from a plug hole of a shell 6, passes through a small screw plug 1 of a process oil sealing plug, and is led out from a hole of a rubber mat 2 with an eccentric hole, and the rubber mat 2 is overlapped and embedded in a slot of the small screw plug hole to compress the lead of the thermocouple. The thermocouple wire is drawn out from the through-hole of upper cover 3 again, and upper cover 3 is connected and is fixed on little plug screw 1, compresses tightly cushion 2, blocks the leakage path of lubricating oil from the gap department of wire to realize the oil blanket effect, solve the easy problem of leaking of ordinary plug screw through-hole, finally play the purpose that promotes turbine cooler reliability.

What has been described above is merely a preferred embodiment of the invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several variations and modifications can be made, and shall be considered to belong to the protection scope of the present invention.

Claims

1. A technological oil sealing plug of a turbine cooler is characterized by comprising a small screw plug, a rubber pad and an upper cover; the upper cover is tightly connected with the small screw plug through threads, and the small screw plug is provided with a rubber pad groove for stacking a rubber pad; a thermocouple wire for temperature monitoring and measuring is led out from through holes of the small screw plug, the rubber pad and the upper cover, the upper cover and the small screw plug are fixedly connected and then press the rubber pad, and a leakage path of lubricating oil from a gap between the wire and the through hole is blocked.

2. The turbine cooler process oil seal plug as defined in claim 1, wherein the small plug screw has a threaded structure at both ends, and the bottom thread is adapted to be fixedly connected in the threaded hole of the test piece.

3. The turbine cooler process oil shutoff head of claim 1, wherein the rubber gasket through holes are eccentrically distributed.

4. The turbine cooler process oil shutoff plug of claim 3, wherein the rubber gasket is made of silicone rubber and is soft to compress the temperature measuring wire without damaging the temperature measuring wire.

5. The turbine cooler process oil seal plug of claim 1, wherein a hexagonal boss is arranged at the middle section of the small plug screw.

6. The turbine cooler process oil shutoff head of claim 1, wherein the periphery of the upper cover is provided with knurls.