CN211288088U

CN211288088U - Sealing ring structure of compressor for vehicle

Info

Publication number: CN211288088U
Application number: CN201922335187.1U
Authority: CN
Inventors: 邵光华; 姜其航
Original assignee: Shanghai Yefengxing Technology Co ltd
Current assignee: Shanghai Yefengxing Technology Co ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-08-18
Anticipated expiration: 2029-12-23

Abstract

The utility model discloses an automobile-used compressor seal circle structure belongs to car body parts technical field. The guide ring is sleeved between the outer side of the tangential ring and the inner cavity; the side connection pad is provided with two altogether, the side connection pad is the symmetry and sets up in the main ring left and right sides, side connection pad and main ring welding, every side connection pad comprises three piece combination bits, the riveting is connected between the combination bits, the equal trompil in combination bit middle part is provided with the counterpoint mouth, current metal seal circle is compared to this kind of sealing washer structure, can be through direction gas passage blocking overflow gas in the inner chamber, the sealing performance of structure has been improved, and the outer structure that utilizes flexible setting is in the reinforcement sealing washer, avoid piling up of thermal stress, the reliability of structure has been improved.

Description

Sealing ring structure of compressor for vehicle

Technical Field

The utility model relates to a car body parts technical field, especially a car compressor seal circle structure.

Background

The sealing ring is a shaft seal device of a rotating machine, and a transmission shaft of a compressor penetrates inside and outside equipment, so that a circumferential gap exists between the shaft and the equipment, a medium in the equipment leaks outwards through the gap, and if the pressure in the equipment is lower than the atmospheric pressure, air leaks into the equipment, so that a shaft seal device for preventing leakage is required;

current automobile body compressor is mostly scroll compressor, rotates through driving disk and eccentric shaft and inhales, arranges the air, however at the actual motion in-process, the compressor need to be retained the clearance with the connecting axle position of transmission end and guarantees that the transmission is stable, and is higher to the sealing washer sealing performance requirement, and gaseous by axis body space high pressure one side overflow to low pressure one side when gas leakage, will influence the compressor to a certain extent and compress and ratio.

SUMMERY OF THE UTILITY MODEL

Solves the technical problem

The utility model aims at providing an automobile-used compressor sealing washer structure to above-mentioned problem, the technical scheme who adopts is: the guide ring is sleeved between the outer side of the tangential ring and the inner cavity;

the two side connecting discs are symmetrically arranged on the left side and the right side of the main ring and welded with the main ring, each side connecting disc is composed of three combined tooth sheets, the combined tooth sheets are connected in a riveting mode, alignment ports are formed in the middle of the combined tooth sheets, shaft ports are formed in the middle of the side connecting discs, and the shaft ports are communicated with the inner cavity;

the four arc-shaped base plates are annularly distributed in the middle of the outer side of the main ring, clamping columns are inserted and arranged on the outer sides of the arc-shaped base plates, inserting grooves are formed among the arc-shaped base plates, inner rings are embedded and arranged on the inner sides of the inserting grooves, the inner rings are sleeved with the main ring, and spring coils are filled between the inner rings and the inserting grooves;

furthermore, the diameter of the plug groove is in a shape of a concave tooth, and a gas flow channel is transversely formed between the plug groove and the guide ring.

Furthermore, the main ring is a polytetrafluoroethylene sealing tube and is fixedly connected with the compressor shaft body through the shaft opening and the inner cavity in an inserting mode.

Furthermore, the tangential ring is a metal sleeve, the section of the tangential ring is in an I shape, and a gap is formed between the tangential ring and the inner cavity.

Furthermore, the inner ring is of a C-shaped rubber ring structure, and grinding grains are etched on the inner side of the inner ring.

Furthermore, the spring coils are uniformly distributed in an annular shape, and the arc-shaped base plates are connected into a whole through the spring coils.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

1. in the sealing ring structure of the compressor for the vehicle, the connecting ends of the sealing ring and the shaft body are plugged by the plug grooves and the tangential rings which are symmetrically arranged in the sealing ring inner structure, the guide ring is used for guiding leaked gas to the two sides of the inner cavity, the plug grooves are blocked, leakage of gas from high pressure to low pressure is effectively avoided, and the sealing performance of the structure is improved.

2. In the sealing ring structure of the compressor for the vehicle, the outer structure of the sealing ring is connected with the arc-shaped base plate through the spring ring and the inner ring which are arranged elastically, and the outer structure of the main ring is encapsulated and reinforced through the arc-shaped base plate structure, so that the structural strength of the sealing ring is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the front view of the internal structure of the present invention.

Fig. 3 is the schematic diagram of the internal structure of the arc-shaped backing plate of the present invention.

In the attached drawing, 1-main ring, 2-side connecting disc, 3-clamping column, 4-arc backing plate, 5-inner cavity, 6-plug groove, 7-tangential ring, 8-guide ring, 9-shaft opening, 10-combined tooth sheet, 11-alignment opening, 12-inner ring, 13-spring ring and 14-slot.

Detailed Description

In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

With reference to fig. 1-3, the utility model discloses a sealing ring structure of a vehicular compressor, which comprises a main ring 1, a side connecting disc 2 and an arc-shaped backing plate 4; an inner cavity 5 is formed in the main ring 1 in a slotted mode, plug grooves 6 are convexly formed in the left side and the right side of the inner cavity 5, a tangential ring 7 is embedded in the middle of the inner cavity 5, and a guide ring 8 is sleeved between the outer side of the tangential ring 7 and the inner cavity 5;

the side connecting discs 2 are symmetrically arranged at the left side and the right side of a main ring 1, the side connecting discs 2 are welded with the main ring 1, each side connecting disc 2 is composed of three combined tooth sheets 10, the combined tooth sheets 10 are connected in a riveting way, the middle parts of the combined tooth sheets 10 are provided with alignment ports 11, the middle parts of the side connecting discs 2 are provided with shaft ports 9, the shaft ports 9 are communicated with an inner cavity 5, the main ring 1 is a polytetrafluoroethylene sealing tube, a tangential ring 7 is a metal sleeve, the cross section of the tangential ring 7 is in an I shape, a gap is formed between the tangential ring 7 and the inner cavity 5, an installer inserts the sealing ring into a transmission shaft body of the compressor and is fixedly inserted into the transmission shaft through the shaft ports 9 and the inner cavity 5, the alignment ports 11 are arranged at the front side and the rear side of the surface of the side connecting discs 2 to assist the installer to axially connect the compressor through an alignment sealing ring and the sealing ring structure of the, gas overflows along the connecting end of the gap between the shaft body and the sealing ring, enters the inner cavity 5 along the shaft opening 9, transversely overflows along the gap between the tangential ring 7 and the inner cavity 5 when passing through the tangential ring 7 and the guide ring 8, the groove diameter of the plug groove 6 is in a concave tooth shape, a gas flow channel is transversely formed between the plug groove 6 and the guide ring 8, and flows into the plug groove 6 along a channel between the guide ring 8 and the tangential ring 7 to form a gas pressure difference with the shaft opening 9 at the other end, so that a gas seal is formed between the section of the plug groove 6 and the inner cavity 5, the gas is prevented from overflowing outwards, and the stability of the compressor during transmission is ensured;

arc backing plate 4 is provided with four altogether, arc backing plate 4 is ring distribution in the middle part of the 1 outside of main circle ring, 4 outside grafting of arc backing plate is provided with double-layered post 3, be formed with slot 14 between the arc backing plate 4, the inboard scarf joint of slot 14 is provided with inner ring 12, inner ring 12 cup joints with main circle ring 1, it has spring circle 13 to fill between inner ring 12 and the slot 14, the sealing washer structure is cup jointed fixedly by the arc backing plate 4 that the outside middle part set up, double-layered post 3 sets up in 1 four sides of main circle ring with the combination of arc backing plate 4, according to arc backing plate 4 and 3 metallic structure characteristics of double-layered post, from 1 main body structural strength of outside reinforcement main circle ring.

The inner ring 12 is of a C-shaped rubber ring structure, abrasive grains are etched on the inner side of the inner ring 12, the inner ring 12 serves as a fastening structure between the arc-shaped base plate 4 and the main ring 1, and the friction coefficient between the arc-shaped base plate 4 and the main ring 1 is improved by utilizing an abrasive grain surface.

Wherein, spring coil 13 is annular evenly distributed, connects as an organic wholely through spring coil 13 between the arc backing plate 4, connects fashioned arc backing plate 4 by spring coil 13, can change arc backing plate 4, slot 14 notch size by spring coil 13's flexible, and movable extending structure can be just thermal outwards dredging, avoids the sealing washer when the excessive heat dissipation capacity of conduction compressor, and the unable metal nature that leads to the fact of dredging of main ring 1 thermal stress changes.

Here, the upper, lower, left, right, front, and rear represent only relative positions thereof and do not represent absolute positions thereof. The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides an automobile-used compressor sealing washer structure, includes main ring (1), side connection dish (2) and arc backing plate (4), its characterized in that:

an inner cavity (5) is formed in the main ring (1) in a groove mode, plug grooves (6) are arranged on the left side and the right side of the inner cavity (5) in a protruding mode, a tangential ring (7) is embedded in the middle of the inner cavity (5), and a guide ring (8) is sleeved between the outer side of the tangential ring (7) and the inner cavity (5);

the two side connecting discs (2) are arranged, the side connecting discs (2) are symmetrically arranged on the left side and the right side of the main ring (1), the side connecting discs (2) are welded with the main ring (1), each side connecting disc (2) is composed of three combined tooth sheets (10), the combined tooth sheets (10) are connected in a riveting mode, alignment ports (11) are formed in the middle of the combined tooth sheets (10), shaft ports (9) are formed in the middle of the side connecting discs (2), and the shaft ports (9) are communicated with the inner cavity (5);

arc backing plate (4) are provided with four altogether, arc backing plate (4) are annular distribution in main circle ring (1) outside middle part, arc backing plate (4) outside is pegged graft and is provided with press from both sides post (3), be formed with slot (14) between arc backing plate (4), the inboard scarf joint of slot (14) is provided with inner ring (12), inner ring (12) cup joint with main circle ring (1), it has spring circle (13) to fill between inner ring (12) and slot (14).

2. The seal ring structure for the vehicular compressor according to claim 1, wherein: the diameter of the plug groove (6) is in a shape of a concave tooth, and a gas flow channel is transversely formed between the plug groove (6) and the guide ring (8).

3. The seal ring structure for the vehicular compressor according to claim 1, wherein: the main ring (1) is a PTFE sealing tube, and the main ring (1) is fixedly connected with a compressor shaft body through a shaft opening (9) and an inner cavity (5) in an inserting mode.

4. The seal ring structure for the vehicular compressor according to claim 1, wherein: the tangential ring (7) is a metal sleeve, the section of the tangential ring (7) is in an I shape, and a gap is formed between the tangential ring (7) and the inner cavity (5).

5. The seal ring structure for the vehicular compressor according to claim 1, wherein: the inner ring (12) is of a C-shaped rubber ring structure, and grinding grains are etched on the inner side of the inner ring (12).

6. The seal ring structure for the vehicular compressor according to claim 1, wherein: the spring coils (13) are uniformly distributed in an annular shape, and the arc-shaped backing plates (4) are connected into a whole through the spring coils (13).