CN2646523Y

CN2646523Y - High temperature resistant dynamically sealed swivel joint

Info

Publication number: CN2646523Y
Application number: CN 03268910
Authority: CN
Inventors: 张厚泉; 王元军; 张厚彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-07-06
Filing date: 2003-07-06
Publication date: 2004-10-06
Anticipated expiration: 2013-07-06

Abstract

The utility model relates to a high temperature resistant dynamic sealed rotary adapter which is the key mechanism in the connection of a static pipeline with a rotary device and consists of a shell, a pressing cover which is salient due to the arrangement of a ball and is provided with a pipe, a hollow shaft, an oil-less bearing which is arranged on the hollow shaft, a positioning ring which is salient due to the arrangement of a ball, a sealing ring with the two spheres sunken, an oil-less bearing arranged at the pipe of the hollow shaft, a pressing spring arranged on the spring washer, a thrust bearing, an adjusting screw, a lifting lug, a plurality of screw holes which are on the connecting pipelines and communicated with the cavity of the shell, and a plurality of fixed units. Through the cooperation of the sealing ring, the heaves on the pressing cover and the positioning ring as well as the compensation of the adjusting screw, the utility model achieves complete enclosure and simultaneously avoids the invision of the high-temperature materials.

Description

High temperature resistant motive sealing swivel joint

Technical field

The utility model relates to the bindiny mechanism of a kind of static pipeline and rotating equipment, relates in particular to the swivel joint that a kind of static pipeline is connected with rotating equipment.

Background technique

In the prior art, in order to solve by static pipeline to rotating equipment conveyance fluid (gas or liquid), people have designed a kind of motive sealing swivel joint (consulting Fig. 7).It comprises the housing 1 that constitutes swivel joint, one section hollow shaft 12 that the shell adjustment of packing into presses the body section of exposing to be connected with rotating equipment, be located in the spring 9 in the housing 1, the oilless bearing 4 that has the sphere that caves in that from inside to outside has the oilless bearing that the spring seat groove is arranged 2 that is enclosed within on the hollow shaft 12, positioning ring that a side has spherical surface hill to match successively with the spherical surface hill of positioning ring, the outer end of housing 1 is enclosed within the dull and stereotyped gland 8 that bolt is connected with housing that passes through on the hollow shaft, has on the housing 1 to become the integrally-built hanger that has mounting hole that is connected with positioning means with it.The defective that it exists is: the one, and spring directly contacts with mordant medium, very easily corrosion, especially with after high temperature media contact, the performance of more having accelerated rate of corrosion and having reduced spring produces the gap and causes leakage and cause danger, influence the normal operation of equipment, thereby cause economic loss; The 2nd: both made the medium of conveying not possess corrosivity, but, caused the elasticity of spring to reduce, and also can produce the gap between the Sealing, and can cause dielectric leakage equally because of contacting with high temperature media at condition of high temperature lower spring; The 3rd: the Sealing in the housing is in rotary state, and the uncompensated measure in the gap that produces because of wearing and tearing in the operation process also can cause leakage.

Summary of the invention

The purpose of this utility model provides a kind of high temperature resistant motive sealing swivel joint, makes spring not contact, not leak with Korrosionsmedium with high temperature.

High temperature resistant motive sealing swivel joint, it comprises housing, the one end hollow shaft in the housing of packing into, cover the gland that the hollow shaft load hole is arranged of housing port, the housing port is to the seal washer between the gland, the bolt of stationary gland, adopt drive fit to be the positioning ring of spherical surface hill towards housing mouth direction by one of the housing inner chamber section that is in that center hole is enclosed within on the hollow shaft, the screw of the connecting tube that communicates with the housing inner chamber, there be thread section or the annular slot that is connected with rotating equipment in the termination portion of the hollow shaft section of exposing, be fixed on the hanger of hanging the hole having on the housing, be characterized in: the inner chamber of housing is horizontal two-stage turriform cavity, hollow shaft has been with the oilless bearing (graphite annulus) of balance hollow shaft effect on the section of the inboard termination of positioning ring, gland is being spherical surface hill towards the housing inner cavity surface, and gland has to the hollow shaft part between the positioning ring by center hole and is enclosed within the seal ring that the sphere with spherical surface hill gland and positioning ring on the hollow shaft works the two spheres depressions that match.The outside of gland promptly has with the opposing side of spherical surface hill and becomes integrally-built one section socket with gland, be on the hollow shaft shaft part in the socket and from inside to outside be set with oilless bearing successively, the spring washer that has the annular seating groove is pressed in adjusting nut on the thrust-bearing on pressure spring, thrust-bearing and the screw-in hollow shaft thread section.

High temperature resistant motive sealing swivel joint, its Sealing positioning ring, seal ring and gland by the spherical female convex surface mutually interworking closely cooperate, its pressure spring is installed in the socket and does not contact with medium, Sealing compensates by the precession adjusting nut at any time because of the gap that wearing and tearing produce in the operation process, therefore its sealability is fabulous, pressure spring is avoided soaking of medium and is attacked (high temperature, corrosion), the performance originally that has kept pressure spring, it is the safest high temperature resistant motive sealing swivel joint that a kind of static pipeline is connected with rotating equipment.

Description of drawings

Fig. 1 is high temperature resistant motive sealing swivel joint embodiment's 1 a structural drawing.

Fig. 2 is that Fig. 1 is the plan view of two sphere depression seal rings 4.

Fig. 3 is the left view of Fig. 2.

Fig. 4 is the sectional view of adjusting nut 11 among Fig. 1.

Fig. 5 is the right elevation of Fig. 4.

Fig. 6 is a gland 13 and socket 8 integrant plan views among Fig. 1.

Fig. 7 is the right elevation of Fig. 6.

Fig. 8 is the be hit by a bullet plan view of spring abutment 7 of Fig. 1.

Fig. 9 is the A-A sectional view of Fig. 8.

Figure 10 is the structural drawing of swivel joint in the prior art.

Specific embodiments

Embodiment

In the embodiment shown in fig. 1, described high temperature resistant motive sealing swivel joint, it comprises housing 1, pack into hollow shaft 12 in the housing 1, cover the gland that hollow shaft load hole 21 is arranged 13 of housing 1 port, housing 1 port is to the seal washer 15 between the gland 13, the bolt 14 of stationary gland 13, adopt drive fit to be the positioning ring 3 of spherical surface hill towards housing 1 port direction by one of the housing 1 inner chamber section that is in that mesopore is enclosed within on the hollow shaft, the screw 16 of the connecting pipeline that communicates with housing 1 inner chamber, there be screw thread or the annular slot that is connected with rotating equipment in the termination portion of hollow shaft 12 sections of exposing, be fixed on the hanger 5 of hanging the hole having on the housing 1, be characterized in: the inner chamber of housing 1 is horizontal two-stage turriform cavity, hollow shaft 12 has been with the oilless bearing 2 (graphite annulus) of balance hollow shaft effect on positioning ring 3 inboard termination sections, gland 13 is being spherical surface hill 20 (consulting Fig. 6 in addition) towards housing 1 inner cavity surface, gland 13 have to hollow shaft 12 shaft parts between the positioning ring 3 by center hole 24 be enclosed within on the hollow shaft 12 with gland 13 spherical surface hill 20 and two spheres depressions 14 of matching of the spherical surface hill of

positioning ring

3,23 seal ring 4 (is consulted Fig. 2 in addition, Fig. 3), the outside of gland 13 promptly has with 13 one-tenth integrally-built one section sockets 8 of gland with the opposing side of spherical surface hill 20 (consults Fig. 6 in addition, Fig. 7), for being put aside in socket 8, heat heats up and the performance of reduction spring, design has radiation hole 17 on the barrel of socket 8, simultaneously for increasing the intensity of socket 8, preventing that the mouth of pipe is stressed splits, outside socket 8 ports, be with the annular protrusion 18 of similar stiffening rib, be on the hollow shaft shaft part in the socket 8 from being set with oilless bearing 6 from inside to outside successively, the spring washer 7 of spring seat groove 25 is arranged, pressure spring 9, be pressed in adjusting nut 11 on the thrust-bearing 10 on the thrust-bearing 10 and the hollow shaft of packing into.

Claims

1, a kind of high temperature resistant motive sealing swivel joint, it comprises housing (1), pack into hollow shaft (12) in the housing (1), cover the gland that hollow shaft load hole (21) are arranged (13) of housing (1) port, housing (1) port is to the seal washer (15) between the gland (13), the bolt (14) of stationary gland (13), adopt drive fit to be the positioning ring (3) of spherical surface hill towards housing (1) port direction by one of housing (1) the inner chamber section that is in that center hole is enclosed within on the hollow shaft, the screw (16) of the connecting pipeline that communicates with housing (1) inner chamber, there be screw thread or the annular slot that is connected with rotating equipment in the termination portion of hollow shaft (12) section of exposing, be fixed on the hanger (5) of hanging the hole having on the housing (1), it is characterized in that: the inner chamber of housing (1) is horizontal two-stage turriform cavity, hollow shaft (12) has been with the oilless bearing (2) of balanced action on the section of the inboard termination of positioning ring (3), gland (13) is being spherical surface hill (20) towards housing (1) inner cavity surface, gland (13) has to hollow shaft (12) shaft part between the positioning ring (3) by center hole (24) and is enclosed within two spheres depressions (14 that spherical surface hill on the hollow shaft (12) and spherical surface hills gland (13) (20) and positioning ring (3) matches, 23) seal ring (4), the outside of gland (13) promptly with the opposing side of spherical surface hill (20) become integrally-built one section socket (8) with gland (13), be on the hollow shaft shaft part in the socket (8) and from inside to outside be set with oilless bearing (6) successively, the spring washer (7) that spring seat groove (25) are arranged, pressure spring (9), thrust-bearing (10) and screw in the adjusting nut (11) on the thrust-bearing (10) of being pressed on the hollow shaft thread section.

2, a kind of high temperature resistant motive sealing swivel joint according to claim 1 is characterized in that: design has radiation hole (17) on the barrel of socket (8).

3, a kind of high temperature resistant motive sealing swivel joint according to claim 1 is characterized in that: the annular protrusion (18) that is with similar stiffening rib outside socket (8) port.