CN202266786U

CN202266786U - Rotating joint with heat dissipation structure

Info

Publication number: CN202266786U
Application number: CN2011203104339U
Authority: CN
Inventors: 朱宗会; 李继锁; 沈元坤
Original assignee: JIANGSU TENGXUAN TECHNOLOGY CO LTD
Current assignee: JIANGSU TENGXUAN TECHNOLOGY CO LTD
Priority date: 2011-08-25
Filing date: 2011-08-25
Publication date: 2012-06-06
Anticipated expiration: 2021-08-25

Abstract

The utility model relates to a rotating joint with a heat dissipation structure. Two ends of a hollow housing are in fixed connection with a tail cap provided with a liquid channel and a hollow end cap respectively; the inside of the housing is rotatably connected with an outer pipe through two bearings; the outer end of the outer pipe extends out of the end cap; a sealing device is disposed between the inner end of the outer pipe and the tail cap; and the housing is provided with a plurality of heat dissipation holes between the two bearings. Through the dissipation holes disposed in the housing between the two bearings, the rotating joint enables heat of conduction oil to dissipate timely, reduces and eliminates failure of jamming of the bearings expanding out of heat, and has improved reliability.

Description

The swivel joint of band radiating structure

Technical field

The utility model belongs to the mechanical sealing technology field, relates to being used for flowing medium and being input to the dynamic seal apparatus of rotating equipment, specifically a kind of swivel joint with radiating structure from static pipeline.

Background technique

Swivel joint is that flowing medium (liquid, oil, gas etc.) is input to the dynamic seal apparatus the rotating equipment from static pipeline; Be to solve run, drip, leak; Energy saving, the protection environment, requisite mechanical seal basis critical component improves working conditions.

Split type many spring structures swivel joint adopts the split fabricated construction, easy processing, and assembling and easy to maintenance, sealing are steadily.The day for announcing is on June 9th, 2010, and notification number is CN101403456B, and denomination of invention just discloses a kind of split type many spring structures swivel joint for the Chinese invention patent of " high pressure, high-rotation speed rotary connector ".This patent adopts balanced type plane sealing, and outer tube is supported on two high-speed bearings, can under high pressure, high speed conditions, work.But when this patent was used to carry conduction oil, bearing was prone to thermal expansion and stuck, causes fault, brings loss to production.

Summary of the invention

The utility model provides a kind of swivel joint with radiating structure to the deficiency of above-mentioned existing technology, this swivel joint bearing can be not stuck, reliable operation.

The technological scheme that provides according to the utility model: a kind of swivel joint with radiating structure; Be fixedly connected with the tail-hood that has fluid passage and the end cap of hollow respectively at the two ends of hollow housing; Rotatably be connected with outer tube through two bearings in the said housing; Stretch out from said end cap the outer end of said outer tube, is provided with seal arrangement between the inner of said outer tube and the said tail-hood; Have a plurality of radiation holes on the said housing between said two bearings.

Said radiation hole is a waist shaped hole.

Said seal arrangement comprises stationary ring and a plurality of spring; Said stationary ring be slidingly fitted in the said tail-hood and the inner of its end and said outer tube between motive sealing be connected, said a plurality of springs are installed between the bulge loop end face that is provided with on end face and the said stationary ring excircle of said tail-hood.

The inner outer of said outer tube is set with flange gasket, on the said housing between said flange gasket and the said tail-hood return tube is installed.

Be provided with thermal-protective coating in the tube wall of said outer tube.

The interior pipe that has been rotatably assorted in the said tail-hood, said in pipe be inserted in the said outer tube.

Between said tail-hood and the said interior pipe flip sleeve is installed.

The outer end of said tail-hood is fixedly connected with reducing elbow.

The outer end of said tail-hood is fixedly connected with the angle square elbow.

The outer end of said tail-hood is fixedly connected with the variation elbow, the interior pipe that has been rotatably assorted in the said variation elbow, and said interior pipe is inserted in the said outer tube.

Compared with present technology the utility model has the following advantages: the utility model has radiation hole on the housing between two bearings; Can the heat of conduction oil in time be distributed; Reduce and eliminated the bearing expanded by heating and stuck fault, increased the reliability of swivel joint; Housing is provided with return tube, can make conduction oil return the oil return system into sealing, the anti-oxidant noncoking of conduction oil, no leakage failure.

Description of drawings

Fig. 1 is first kind of embodiment's of the utility model a structural representation.

Fig. 2 is second kind of embodiment's of the utility model a structural representation.

Fig. 3 is the third embodiment's of the utility model a structural representation.

Embodiment

Embodiment below in conjunction with in the accompanying drawing is further described the utility model.

Among Fig. 1, Fig. 2, comprise that reducing elbow 1, hole are with back-up ring 2, flip sleeve 3, tail-hood 4, outer-hexagonal screw 5, return tube 6, stationary ring 7, O type circle 8, spring 9, elastic cylindrical pin 10, hexagonal socket head plug 11, O type circle 12, housing 13, flange gasket 14, lubricating cup 15, spacer 16, bearing 17, shaft block ring 18, end cap 19, outer-hexagonal screw 20, outer tube 21, flange 22, half point ring 23, red copper pad 24, interior pipe 25, radiation hole 26, thermal-protective coating 27, variation elbow 28, angle square elbow 29 etc.

Like Fig. 1, Fig. 2 and shown in Figure 3, the utility model is a kind of swivel joint with radiating structure, is fixedly connected with the tail-hood 4 that has fluid passage and the end cap 19 of hollow through outer-

hexagonal screw

5,20 respectively at the two ends of hollow housing 13.Tail-hood 4 tops are provided with the spline hole, but also dual-purpose lifting eye; Tail-hood 4 belows have the oil-feed interface, link to each other with user's medium import; The afterbody of tail-hood 4 has oil out port, can connect various terminal, links to each other with user's media outlet.

Rotatably be connected with outer tube 21 through two bearings 17 in the housing 13, stretch out from end cap 19 outer end of outer tube 21.Two bearings 17 are fixed between the shaft shoulder and end cap 19 of housing 13 interior steps and outer tube 21.Be provided with spacer 16 between two bearings 17, outer bearing 17 is locked in outside the outer tube 21 by shaft block ring 18.The lubricating cup 15 of lubricating bearings 17 is installed near bearing 17 places on housing 13 and the end cap 19.

The utility model has a plurality of radiation holes 26 on the housing between two bearings 17 13.Radiation hole 26 is a waist shaped hole, is distributed on the housing 13.Radiation hole 26 in time distributes the heat of inferior high temperature (being lower than the conduction oil flash temperature) conduction oil, reduces and has eliminated bearing 17 expanded by heating and stuck fault, has increased the reliability of swivel joint.

Be provided with seal arrangement between the inner of outer tube 21 and the tail-hood 4.Seal arrangement comprises stationary ring 7 and a plurality of spring 9.Stationary ring 7 is slidingly fitted in the tail-hood 4, is provided with O type circle 8 between stationary ring 7 and the tail-hood 4, and O type circle 8 is installed in the groove of stationary ring 7 peripheries.Motive sealing is connected between the inner of the end of stationary ring 7 and outer tube 21.One end of a plurality of springs 9 is installed in the counterbore of end face of tail-hood 4, and its other end is resisted against on the bulge loop end face that is provided with on stationary ring 7 excircles.9 sealings of spring and compensating action.Between the bulge loop of stationary ring 7 and the tail-hood 4 elastic cylindrical pin 10 is installed, elastic cylindrical pin 10 is symmetrically placed in the breach of stationary ring 7, and start-stop transfers to usefulness, is used to prevent that stationary ring 7 from circumferentially rotating.

The inner outer of outer tube 21 is set with flange gasket 14, and O type circle 12 is installed between the interior step of flange gasket 14 and housing 13, constitutes the Seal cage of sealing between flange gasket 14 and housing 13 and the stationary ring 7.Have a plurality of seal leakage peep holes on the housing 13 between flange gasket 14 and the tail-hood 4, return tube 6 is installed in the peep hole of extreme lower position, return tube 6 is connected with user's oil returning tube, and remaining seal leakage peep hole is blocked with hexagonal socket head plug.The purpose that return tube 6 is set is: makes just in case the conduction oil that leakage arranged returns the oil return system of sealing through return tube 6 safety, makes not ingress of air of conduction oil, can coking, and do not leak outside, in order to avoid cause waste and influence environment yet.

There are two kinds of Placements the outer end of outer tube 21: a kind of Placement adopts flange to connect; Shown in Fig. 1, Fig. 2 and Fig. 3; Outer end at outer tube 21 is equipped with flange 22 through flange half point ring 23; And the exterior edge face of outer tube 21 is provided with red copper pad 24, is connected with user's rotating equipment through flange 22, half point ring 23 and red copper pad 24; Another kind of Placement adopts and is threaded, and directly is processed with outside thread in the outer end of outer tube 21.

Can also be provided with thermal-protective coating 27 in the tube wall of outer tube 21, play heat-blocking action.

According to the applying working condition needs, can be at the outer end of tail-hood 4 assembling various terminal.

Like Fig. 1, shown in Figure 3, with back-up ring 2 flip sleeve 3 is installed through the hole in the tail-hood 4.Pipe 25 in being rotatably assorted in the flip sleeve 3, interior pipe 25 is inserted in the outer tube 21.The outer end of tail-hood 4 can be fixedly connected with reducing elbow 1, and is as shown in Figure 1; Also can be fixedly connected with angle square elbow 29, as shown in Figure 3.

As shown in Figure 2, the outer end of tail-hood 4 is fixedly connected with variation elbow 28, pipe 25 in being rotatably assorted in the variation elbow 28, and interior pipe 25 is inserted in the outer tube 21.

The assembling process of the utility model is following: said housing 13 has some heat radiation waist shaped holes and observes Leak hole at assigned position, and the screw of charge of oil cup 15 all has some screws that are used for fastening tail-hood 4 and end cap 19 on two Transverse planes.Block the observation Leak hole on the housing 13 with hexagonal socket head plug 11, return tube 6 is connected in the observation Leak hole of lowest order.Be loaded on together on the interior step of housing 13 after O type circle 12 being enclosed within the O type circle shoulder place of flange gasket 14, the outer tube 21 that will install bearing 17, spacer 16, shaft block ring 18 again pushes in the housing 13, puts end cap 19 again, is anchored on the housing 13 with outer-hexagonal screw 20.Flip sleeve 3 and hole are housed with back-up ring 2 in tail-hood 4 uropores, interior pipe 25 skewers are gone into the endoporus of tetrafluoro cover 4.Tail-hood 4 large end faces are provided with the counterbore of some shock mounts that are uniformly distributed with 9 and the counterbore of the shooting property straight pin 10 of symmetry.O type circle 8 is placed in the big end endoporus that pushes tail-hood 4 behind the O type ring recess of stationary ring 7 together, makes the bulge loop lower end surface pressing spring face of stationary ring 7, makes on stationary ring 7 bulge loops symmetric windows block elastic cylindrical pin 10, makes stationary ring 7 splines.Tail-hood 4 usefulness outer-hexagonal screws 5 are anchored on the breech face of housing 13 and fuse.

The utility model also has the following advantages: 1, housing is the split fabricated construction, is easy to standard serialization, generalization, is easy to adapt to user's working conditions change; 2, split assembling type shell construction is easy to manufacture, can improve machining accuracy, assembles easy to maintenance; 3, how spring sealed collocation structure balance be steady, the life-span is long.

Claims

1. swivel joint with radiating structure; Be fixedly connected with the tail-hood (4) that has fluid passage and the end cap (19) of hollow respectively at the two ends of hollow housing (13); Rotatably be connected with outer tube (21) through two bearings (17) in the said housing (13); Stretch out from said end cap (19) outer end of said outer tube (21), is provided with seal arrangement between the inner of said outer tube (21) and the said tail-hood (4); It is characterized in that: have a plurality of radiation holes (26) on the said housing (13) between said two bearings (17).

2. according to the swivel joint of the described band radiating structure of claim 1, it is characterized in that: said radiation hole (26) is a waist shaped hole.

3. according to the swivel joint of the described band radiating structure of claim 1; It is characterized in that: said seal arrangement comprises stationary ring (7) and a plurality of spring (9); Said stationary ring (7) be slidingly fitted in the said tail-hood (4) and the inners of its end and said outer tube (21) between motive sealing be connected, said a plurality of springs (9) are installed between the bulge loop end face that is provided with on end face and said stationary ring (7) excircle of said tail-hood (4).

4. according to the swivel joint of the described band radiating structure of claim 1; It is characterized in that: the inner outer of said outer tube (21) is set with flange gasket (14), on the said housing (13) between said flange gasket (14) and the said tail-hood (4) return tube (6) is installed.

5. according to the swivel joint of the described band radiating structure of claim 1, it is characterized in that: be provided with thermal-protective coating (27) in the tube wall of said outer tube (21).

6. according to the swivel joint of the described band radiating structure of claim 1, it is characterized in that: the interior pipe (25) that has been rotatably assorted in the said tail-hood (4), said interior pipe (25) is inserted in the said outer tube (21).

7. according to the swivel joint of the described band radiating structure of claim 6, it is characterized in that: between said tail-hood (4) and the said interior pipe (25) flip sleeve (3) is installed.

8. according to the swivel joint of the described band radiating structure of claim 6, it is characterized in that: the outer end of said tail-hood (4) is fixedly connected with reducing elbow (1).

9. according to the swivel joint of the described band radiating structure of claim 6, it is characterized in that: the outer end of said tail-hood (4) is fixedly connected with angle square elbow (29).

10. according to the swivel joint of the described band radiating structure of claim 1; It is characterized in that: the outer end of said tail-hood (4) is fixedly connected with variation elbow (28); The interior pipe (25) that has been rotatably assorted in the said variation elbow (28), said in pipe (25) be inserted in the said outer tube (21).