CN2573827Y - Swivel joint - Google Patents

Abstract

The utility model belongs to the technical field of pipe joints or pipe fittings, and discloses a multiple fluid medium swivel joint for causing a fluid medium to be conveyed to a swivel device from a still pipeline. The utility model is characterized in that a whole is formed by the cascade connection of more than two single swivel joints; the single swivel joint is composed of a rotating shaft, an outer sleeve, a sealing ring, a bearing, etc., wherein, the inner wall of the outer sleeve is provided with one annular input groove; the inner wall of the rotating shaft is provided with one annular output groove which is wider than the input annular groove; both ends of the annular output groove are welded with an inner sleeve; a hole by which the annular input groove and the annular output groove are communicated, and another hole via which the medium is output from the annular output groove are arranged on the radial direction of the rotating shaft; a medium inlet is connected with the still pipeline; a medium outlet hole is connected with the swivel device through an output tubing pipe. The swivel joint has the advantages of simple structure, easy processing, low cost and reliable work, and is capable of being used for cooling, conveying energy resources and drying devices in industries of metallurgy, chemical industry, foods, paper-making, etc.

Description

A kind of swivel joint

(1) technical field: the utility model belongs to pipe joint or pipe fitting technical field, relates to a kind ofly being used for making flowing medium to transport to the multithread body medium swivel joint that rotating equipment goes from static pipeline.Swivel joint is meant a kind of independently monomer product, and the medium inlet of joint is connected with static input pipeline, and the media outlet of joint is connected with the rotating equipment of motion, and medium passes through from joint.

(2) background technique: a kind of multithread body medium swivel joint commonly used on the present domestic pneumatic steelmaking equipment is single major axis formula swivel joint, (see Fig. 1, shown in Figure 2), by rotating shaft 1, overcoat 2, seal ring 3, bearing 4 compositions such as grade, overcoat 2 bottoms are connected with anti-pivoted frame, overcoat 2 is sleeved in the rotating shaft 1, be provided with bearing 4 and seal ring 3 between the two ends of overcoat 2 and the rotating shaft 1, rotating shaft 1 outer wall radially has the annular groove 5 of a plurality of input medias, rotating shaft 1 axially is processed with a plurality of medium channels 6 (consulting shown in Figure 3), each medium channel 6 one end communicates with a corresponding input annular groove 5, medium channel 6 the other ends are media outlet 7, be equipped with O-ring seal 3 in each annular groove 5 both sides, overcoat 2 has a plurality of medium inlets 8 that communicate with the annular groove 5 of input media and the oilhole 9 of lubricated rotating shaft 1 diametrically, the medium inlet 8 of each joint is connected with static input pipeline, and the media outlet 7 of joint is connected with rotating equipment.Its working principle is: the multiple fluid medium enters the corresponding input annular groove 5 of rotating shaft 1 respectively from a plurality of medium inlets 8, and the flowing medium of annular groove 5 outputs to the rotating equipment from media outlet 7 through medium channel 6 corresponding in the rotating shaft 1.The deficiency of its existence is: flowing medium is many more, and rotating shaft 1 is long more, and also long more in the medium channel hole that rotating shaft 1 is axially processed, thereby has increased machining difficulty and expense greatly.Because the medium inlet 8 that overcoat 2 footpath makes progress is axially-aligned, flowing medium is many more, annular groove 5 and between the quantity of seal ring 3 also many more.When swivel joint was worked, 1 seal ring 3 damaged as long as have wherein, just want the integral demounting swivel joint.Because it is long to revolve axle 1 axial dimension, has increased loading and unloading difficulty and time, and when overcoat 2 and rotating shaft 1 suit, longer because of axial dimension, seal ring 3 very easily damages.Again because of each medium channel 6 all in rotating shaft 1 whole boring be processed to form, make rotating shaft 1 axially and radial dimension increase, thereby make the increasing of swivel joint overall weight.Because each flowing medium is to seal isolated by the seal ring 3 between the annular groove 5 in the rotating shaft 1, lost efficacy as seal ring 3, then can produce mutually between each flowing medium and mix, this may cause serious production safety accident (mixing mutually as steelmaking converter argon bottom-blowing and cooling water) or pollute.

(3) summary of the invention: the purpose of this utility model is to provide a kind of multithread body medium swivel joint, and this rotary joint structure is simple, easily processing, and cost is low, reliable operation.

The purpose of this utility model realizes in the following way: swivel joint, and in aggregates by plural single swivel joint serial connection.According to the increase or the minimizing of flowing medium quantity, corresponding increase or reduce the number of single swivel joint serial connection.Single swivel joint is by rotating shaft, bearing, overcoat, compositions such as seal ring, the overcoat bottom is connected with anti-pivoted frame, coat suit is in rotating shaft, be provided with bearing and seal ring between the two ends of overcoat and the rotating shaft, outer casing inner wall has 1 input annular groove, the rotating shaft inwall has 1 than the wide output annular groove of input annular groove, output annular groove two ends and the welding of interior cover, rotating shaft directly upwards has the input annular groove with the output hole that communicates of annular groove and from exporting the hole of annular groove output medium, be equipped with O-ring seal in input annular groove both sides, overcoat has diametrically and imports the medium inlet that annular groove communicates and the oilhole of lubricated rotating shaft, the medium inlet links to each other with static pipeline, and media outlet links to each other with rotating equipment by the output pipe arrangement.When single swivel joint need be carried two kinds of different flowing mediums, according to identical principle, open 2 input annular grooves at outer casing inner wall, be separated into 2 output scalloped recess at the output annular groove of rotating shaft with dividing plate, rotating shaft directly upwards has hole that the input annular groove communicates with the output scalloped recess and from exporting the hole of scalloped recess output medium.During its work: the medium inlet of multiple fluid medium by each single joint enters in the input circular groove between overcoat and the rotating shaft, again by corresponding output annular or scalloped recess in the rotating shaft, flows to rotating equipment from media outlet through the output pipe arrangement.

Effect of the present utility model: the fluid access way of swivel joint all adopts welded structure, is easy to processing, and at the bottom of the manufacture cost, and overall weight is light.Swivel joint by each minute swivel joint serial connection form, can be along with the increase or the minimizing of flowing medium quantity, decision divides the number of swivel joint, satisfying the needs of different fluid media quantity, and can add the valve fluid flow at the output pipe arrangement and regulates.Each offtake axial dimension of this swivel joint is shorter relatively, and seal ring quantity is few, and is easy to loading and unloading quick, reliable operation.Different flowing mediums can be carried by different offtakes, and flowing medium can not produce because of the damage of seal ring mutually and mix, and Safety performance is good.In addition,, be easy to observe and keep in repair accordingly, do not influence the proper functioning of other offtake as the seal ring damage of certain offtake.Therefore this swivel joint is that enterprise solves the fluid run, drip, leak, and energy saving reduces maintenance load, improves the desirable seal parts of working environment.The utility model can be widely used in cooling, energy conveying, the drying equipment of industries such as metallurgy, chemical industry, food, papermaking, rubber, plastics, pharmacy, building materials.

Below in conjunction with accompanying drawing specific embodiment of the utility model is described further:

(4) description of drawings: Fig. 1 is existing single major axis formula rotary joint structure schematic representation

Fig. 2 is the external view of Fig. 1

Fig. 3 is that the k of Fig. 1 is to view

Fig. 4 is the structural representation of the single swivel joint serial connection of the utility model

Fig. 5 is the A-A sectional view of Fig. 4

Fig. 6 is the B-B sectional view of Fig. 4

Fig. 7 is the C-C sectional view of Fig. 4

Consult Fig. 1, Fig. 2, Fig. 3, part 1 is that overcoat, part 3 are bearing for seal ring, part 4 for rotating shaft, part 2, and part 5 is that medium channel, part 7 are medium inlet, oilhole 9 for media outlet, part 8 for annular groove, part 6 in the rotating shaft, consult Fig. 4, Fig. 5, Fig. 6, Fig. 7, part 10 is single swivel joint, part 11 is single swivel joint, the input annular groove of part 12 for putting outward, and part 13 is the output annular groove in the rotating shaft, part 14 is input annular groove and output annular groove attachment hole, part 15 is that interior cover, part 16 are the media outlet hole, and part 17 is the output pipe arrangement, and part 18 is a dividing plate.

(5) embodiment: as shown in Figure 4, swivel joint, in aggregates by single swivel joint 10 and single swivel joint 11 by rotating shaft 1 serial connection.Single swivel joint 10 is by rotating shaft 1, overcoat 2, seal ring 3, bearing 4 compositions such as grade, overcoat 2 bottoms are connected with anti-pivoted frame, overcoat 2 is sleeved in the rotating shaft 1, be provided with bearing 4 and seal ring 3 between the two ends of overcoat 2 and the rotating shaft 1, overcoat 2 inwalls have 1 input annular groove 12, rotating shaft 1 inwall has 1 than the wide output annular groove 13 of input annular groove 12, output annular groove 13 two ends and 15 welding of interior cover, rotating shaft 1 footpath upwards has hole 14 that input annular groove 12 communicates with output annular groove 13 and from exporting annular groove 13 output medium holes 16, be equipped with O-ring seal 3 in input annular groove 12 both sides, overcoat 2 has diametrically and imports the medium inlet 8 that annular groove 12 communicates and the oilhole 9 of lubricated rotating shaft, medium inlet 8 links to each other with static pipeline, and media outlet hole 16 links to each other with rotating equipment by output pipe arrangement 17.Single swivel joint 11 structural principles are similar with single swivel joint 10, and difference is that overcoat 2 inwalls open 2 input annular grooves 12, are separated into 2 at output annular groove 13 usefulness the dividing plates 18 of rotating shaft 1 and export scalloped recess 13.During its work: the medium inlet 8 of multiple fluid medium by each single swivel joint enters in the input circular groove 12 between overcoat 2 and the rotating shaft 1, by corresponding annular in the rotating shaft 1 or scalloped recess 13, flow to rotating equipment again from media outlet hole 16 through output pipe arrangement 17.

Claims (2)

1. swivel joint, form by rotating shaft (1), overcoat (2), seal ring (3), bearing (4) etc., overcoat (2) bottom is connected with anti-pivoted frame, overcoat (2) is sleeved in the rotating shaft (1), be provided with bearing (4) and seal ring (3) between the two ends of overcoat (2) and the rotating shaft (1), it is characterized in that by single swivel joint (10) more than two and single swivel joint (11) in aggregates by rotating shaft (1) serial connection; Single swivel joint (10) overcoat (2) inwall has 1 input annular groove (12), rotating shaft (1) inwall has 1 than the wide output annular groove (13) of input annular groove (12), output annular groove (13) two ends and interior cover (15) welding, rotating shaft (1) footpath upwards has hole (14) that input annular groove (12) communicates with output annular groove (13) and from exporting annular groove (13) output medium hole (16), be equipped with O-ring seal (3) in input annular groove (12) both sides, overcoat (2) has diametrically and imports the medium inlet (8) that annular groove (12) communicates and the oilhole (9) of lubricated rotating shaft, medium inlet (8) links to each other with static pipeline, and media outlet hole (16) link to each other with rotating equipment by output pipe arrangement (17).

2. swivel joint according to claim 1 is characterized in that single swivel joint (11) overcoat (2) inwall opens 2 input annular grooves (12), separates two output scalloped recess (13) at the output annular groove (13) of rotating shaft (1) with dividing plate (18).

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