CN214248299U

CN214248299U - Compartment sealing device

Info

Publication number: CN214248299U
Application number: CN202022571383.1U
Authority: CN
Inventors: 钟涛; 赵楠; 魏小栋; 刘伟; 王晔; 吴立斌; 王艳真; 叶正华; 柳鹏; 王进
Original assignee: WUXI HONGYUAN DEVFLEX CO Ltd; 708th Research Institute of CSIC
Current assignee: WUXI HONGYUAN DEVFLEX CO Ltd; 708th Research Institute of CSIC
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-09-21
Anticipated expiration: 2030-11-09

Abstract

The utility model discloses a lobe sealing device, a serial communication port, including gland and pedestal, the gland passes through housing screw to be fixed on the pedestal, and the gland constitutes the ring-opening cavity jointly with the pedestal the ring-opening cavity in be equipped with the sealing ring, leave certain radial clearance between the interior anchor ring of sealing ring and the main shaft axial plane of joining in marriage the inner chamber of sealing ring in be equipped with the first O shape sealing washer that plays sealed effect. The utility model has simple structure and compact design; the time required by installation, disassembly and maintenance is short, and the efficiency is high; the molding process of the sealing device parts is optimized, the static sealing requirement of the device is met, and meanwhile, the manufacturing cost is reduced to the minimum.

Description

Compartment sealing device

Technical Field

The utility model relates to a lobe sealing device belongs to shafting sealing device technical field.

Background

In consideration of the specific reasons of convenience in disassembly, maintenance and replacement and the like, the conventional bay sealing device is widely in a split structural form consisting of a sealing gland, a sealing seat body and a movable sealing ring part; the sealing gland and the sealing seat body are positioned by the tolerance fit of the flange surface seam allowance and are connected into a whole through a certain number of fastening screws so as to achieve the maximum structural strength; meanwhile, the static seal between the gland and the seat body is realized by adopting the matching of an O-shaped sealing ring, soft packing or a grinding surface. The following effects are brought:

1) when the sealing gland or the seat body is damaged, distorted and deformed, the flange seam allowance is difficult to match;

2) an O-shaped ring groove is processed on a lateral matching surface of the sealing gland, so that the strength of the root part of a flange spigot can be weakened;

3) along with the increase of the size of the applicable shaft diameter, the sealing effect of the soft packing is not ideal under the influence of the layout position and the application quantity of the compression screws;

4) the matching surfaces of the gland and the seat body are respectively processed by scraping, grinding and other processes, which can achieve extremely excellent sealing performance, but the manufacturing cost is greatly increased.

Disclosure of Invention

The utility model aims at: the bulkhead sealing device is simple and compact in structure, convenient to manufacture and maintain and low in cost on the basis of ensuring that the structural strength and the static sealing effect are not reduced.

In order to solve the technical problem, the technical scheme of the utility model a lobe sealing device is provided, a serial communication port, including gland and pedestal, the gland passes through hold-down screw to be fixed on the pedestal, and the gland constitutes the ring-opening cavity with the pedestal jointly the ring-opening cavity in be equipped with the sealing ring, leave certain radial clearance between the interior anchor ring of sealing ring and the main shaft axial plane that joins in marriage the interior slot ring of sealing ring in be equipped with the first O shape sealing washer that plays sealed effect.

Preferably, the gland comprises two identical gland halves, and the two gland halves are connected into a whole through a third nut, a third screw and a positioning pin.

Preferably, the seat body comprises two identical seat body half parts, and the two seat body half parts are connected into a whole through a second nut, a second screw and a positioning pin.

Preferably, a sealing gasket is arranged between the seat body and the partition wall plate, and the seat body is fixed between the partition wall plate by the mounting stud and the first nut.

Preferably, the sealing ring comprises two identical sealing ring halves, and the two identical sealing ring halves are connected into a whole by a connecting screw.

Preferably, a second O-shaped sealing ring is arranged between the gland and the seat body.

Preferably, the seat body is provided with a ring groove at the end face, wherein the ring groove can accommodate the second O-ring seal, so as to provide a deformation space for the second O-ring seal.

Preferably, the flatness of the opposite matching surfaces of the gland and the seat body is not more than 0.05 mm.

Preferably, the half joint of the gland and the seat body and the position of the fastener are staggered by a certain angle, so that the stress is prevented from being distributed along the same radial surface, and the integral structural strength of the device is ensured.

Preferably, after the gland is half-spliced, the end face of the mounting side of the gland is of a full-circle annular surface structure, and the gland can be formed through one cutting procedure, so that the processing difficulty is low, and the high precision is easy to achieve.

The utility model has simple structure and compact design; the time required by installation, disassembly and maintenance is short, and the efficiency is high; the molding process of the sealing device parts is optimized, the static sealing requirement of the device is met, and meanwhile, the manufacturing cost is reduced to the minimum.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a left side view of the present invention.

Detailed Description

In order to make the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.

As shown in fig. 1 and 2, the compartment sealing device comprises a gland 3, a seat body 9, a sealing ring 2, a first 0-shaped sealing ring 1 and other split structural components; the two half parts of the seat body 9 are connected into a whole through a second nut 10, a second screw 11 and a positioning pin 12 and then are installed on the bulkhead plate through an installation stud 6 and a first nut 7; a sealing gasket 8 is arranged between the seat body 9 and the bulkhead wall; the two halves of the gland 3 are connected into a whole through a third nut 13, a third screw 14 and a positioning pin 12 and then are installed on the seat body 9 through the compression screw 5; the gland 3 and the seat body 9 jointly form an open-loop cavity; the two half parts of the sealing ring 2 are assembled around a shaft and then are combined into a whole through a connecting screw 15, and a certain radial gap is formed between the inner ring surface of the sealing ring and the axial surface of the matched main shaft and can freely slide in the open-loop cavity; the first 0-shaped sealing ring 1 is filled in the inner groove cavity of the sealing ring and has the function of radial sealing.

Gland 3 and pedestal 9 between be provided with second O shape sealing washer 4, gland 3 is after the huff amalgamation, its installation side end face is a whole circle anchor ring structure, the shaping of accessible cutting process one, the processing degree of difficulty is low, and easily reaches high accuracy, pedestal 9 open on the terminal surface have the annular, it can hold second O shape sealing washer 4, provides deformation space for it. The flatness of the relative matching surfaces of the gland 3 and the seat body 9 is not more than 0.05 mm, the half joint of the gland 3 and the seat body 0 and the position of the fastener are staggered by a certain angle, and the stress is prevented from being distributed along the same radial surface, so that the integral structural strength of the device is ensured.

Claims

1. The utility model provides a lobe sealing device, its characterized in that includes gland (3) and pedestal (9), and gland (3) are fixed on pedestal (9) through housing screw (5), and gland (3) constitute the ring-opening cavity with pedestal (9) jointly the ring-opening cavity in be equipped with sealing ring (2), leave certain radial clearance between the inner ring surface of sealing ring (2) and the main shaft axial plane that joins in marriage, sealing ring (2) the interior cavity in be equipped with first O shape sealing washer (1) that plays the sealing effect.

2. A compartment seal according to claim 1 in which the gland (3) comprises two identical gland (3) halves, the two gland (3) halves being joined together by a third nut (13), a third screw (14) and a locating pin (12).

3. A compartment seal according to claim 1 in which the body (9) comprises two identical body (9) halves, the two body (9) halves being joined together by the second nut (10), the second screw (11) and the locating pin (12).

4. A compartment seal according to claim 1 in which the sealing gasket (8) is provided between the body (9) and the bulkhead plate, the body (9) being secured to the bulkhead plate by the mounting studs (6) and the first nuts (7).

5. A compartment seal according to claim 1 in which the seal ring (2) comprises two identical seal ring (2) halves, the two identical seal ring (2) halves being joined together by a joining screw (15).

6. A compartment seal according to claim 1 in which a second O-ring seal (4) is provided between the gland (3) and the body (9).

7. A compartment seal according to claim 6 in which the body (9) is provided with a groove in the end face which receives the second O-ring (4) to provide a deformation space for it.

8. A compartment seal according to claim 1 in which the facing mating surfaces of the gland (3) and body (9) are not more than 0.05 mm planar.

9. A compartment seal according to claim 1 in which the gland (3) is angularly offset from the huff joint of the body (9) and the fasteners to avoid stresses being distributed along the same radial plane, thereby ensuring overall structural strength of the device.

10. A compartment seal according to claim 1 in which the gland (3) is of a full circular annulus configuration at its mounting side end face after half-split.