CN201916625U - Dismountable double-end sealing rotary joint - Google Patents
Dismountable double-end sealing rotary joint Download PDFInfo
- Publication number
- CN201916625U CN201916625U CN2010206916930U CN201020691693U CN201916625U CN 201916625 U CN201916625 U CN 201916625U CN 2010206916930 U CN2010206916930 U CN 2010206916930U CN 201020691693 U CN201020691693 U CN 201020691693U CN 201916625 U CN201916625 U CN 201916625U
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- rotating shaft
- hollow rotating
- fixed cover
- dismountable
- gland
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- Expired - Lifetime
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Abstract
The utility model provides a dismountable double-end sealing rotary joint, which belongs to the technical field of machinery and solves the problems that the existing rotary joint has a poor sealing effect and is not easy to dismount. The dismountable double-end sealing rotary joint comprises a water inlet pipe, a hollow rotating shaft, a press cover and a fixing sleeve, wherein the press cover is provided with a water inlet, the fixing sleeve is provided with a water outlet, the water inlet pipe is arranged in the hollow rotating shaft, a hollow water return cavity is formed in the water inlet pipe, the hollow rotating shaft is provided with a penetrated hole and is communicated with the water return cavity, the hollow rotating shaft is rotatablely connected in the fixing sleeve, the water outlet is communicated with the penetrated hole, the press cover is connected with one end of the fixing sleeve, the water inlet is communicated with the water inlet pipe and the water return cavity, the fixing sleeve is detachably connected with the hollow rotating shaft, and a sealing structure capable of forming sealing among the hollow rotating shaft, the press cover and the fixing sleeve is arranged at the water outlet part. The rotary joint is connected through screws and realizes double-end-surface contact sealing through the effect of springs. Therefore, the movable sealing effect is good, the dismounting and the cleaning are convenient, the sealing effect can be checked in time, and the abraded sealing structure can be replaced in time.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of joint, dismountable both-end seal swivel joint that particularly a kind of conveyance fluid medium is used.
Background technique
In chemical industry, medical machinery production field, often can use drying apparatus; at present common drying apparatus is for accelerating dry materials; usually can stirring shaft be set in kiln furnace overturns to material; and the liquid state or the gaseous state thermal medium that feed heating on stirring shaft heat material; because extraneous the need feeds the medium of heat in the stirring shaft; and after the stirring shaft cocycle, flow out stirring shaft, like this for keeping extraneous pipe fitting and equipment is motionless must set up swivel joint.
In the market for solving the problems of the technologies described above selected swivel joint such as China Patent No. ZL 200820082448.2 disclosed " rotary joint device of double mechanical seal ", comprise end cap, cylindrical shell, intake pipe and return pipe, end cap is arranged on an end of cylindrical shell, which is provided with water intake, described return pipe rotary sleeve be located at simplified in, the radial direction through hole that the tube wall of return pipe is provided with, be provided with axial backwater cavity in the pipe of return pipe, described cylindrical shell is provided with backwater mouth, radial direction through hole and backwater mouth are conducted, described intake pipe is set in the backwater cavity of return pipe, one end of intake pipe connects water intake, the other end and backwater cavity are conducted, it is characterized in that: the seal ring that is respectively equipped with in the both sides of backwater mouth, wherein the seal ring closed end cap and the return pipe on the left side, the seal ring closed cylinder and the return pipe on the right.The swivel joint of this structure is because bearing is set directly between cylindrical shell and the return pipe, and it is not quick detachable to cause installing rear cylinder body, can not in time change behind the sealing part abrasion, phenomenon such as cause that thermal medium leaks outside.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, has proposed a kind of sealability better and dismountable both-end seal swivel joint of easy accessibility.
The purpose of this utility model can realize by following technical proposal: dismountable both-end seal swivel joint, comprise intake pipe, hollow rotating shaft, have the gland of water intake and have the fixed cover of water outlet, described hollow rotating shaft radially offers penetration hole; Described intake pipe is arranged in the hollow rotating shaft and forms the backwater cavity of hollow with hollow rotating shaft, and above-mentioned penetration hole is communicated with backwater cavity; Described hollow rotating shaft is arranged in the fixed cover and is rotationally connected with fixed cover, and the water outlet on the described fixed cover is communicated with penetration hole; Described gland is connected an end of fixed cover, and the water intake on the gland is communicated with an end of intake pipe, the other end of intake pipe is communicated with backwater cavity, it is characterized in that, described fixed cover and hollow rotating shaft removably connect, and described water outlet place is provided with the sealing configuration that can make hollow rotating shaft and gland and hollow rotating shaft and fixed cover formation sealing.
Thermal medium feeds in the intake pipe from the water intake of gland, because the backwater cavity between intake pipe and the hollow rotating shaft is communicated with intake pipe, so thermal medium can flow to penetration hole from backwater cavity after flowing into intake pipe, and discharges from water outlet.With the structure of being arranged to removably connect between fixed cover, gland and the hollow rotating shaft, convenient disassembling from hollow rotating shaft cleaned intake pipe and hollow rotating shaft, and can in time check the sealing effect of sealing configuration, changes the sealing configuration of wearing and tearing.
In above-mentioned dismountable both-end seal swivel joint, described hollow rotating shaft is provided with bearing support outward, is provided with bearing between described bearing support and the hollow rotating shaft, and the other end of above-mentioned fixed cover is connected on the bearing support.By being set, bearing make the hollow rotating shaft rotation more smooth and easy.
In above-mentioned dismountable both-end seal swivel joint, described sealing configuration comprises two stationary seal rings and the dynamic seal that is connected on the hollow rotating shaft, a described stationary seal ring is arranged between hollow rotating shaft and the gland, another stationary seal ring is arranged between hollow rotating shaft and the bearing support, and described dynamic seal leans on two stationary seal rings.Dynamic seal and hollow rotating shaft can rotate together, when dynamic seal rotates also roof pressure on stationary seal ring and with stationary seal ring, form sealing.
In above-mentioned dismountable both-end seal swivel joint, described dynamic seal comprises the setting sleeve that is connected with hollow rotating shaft, be separately positioned on two stuffing box glands at setting sleeve two ends and be arranged on some springs in the setting sleeve, and the two ends of described spring can the roof pressure stuffing box gland make stuffing box gland and stationary seal ring fit to form to seal.Dynamic seal makes two stuffing box glands on it contact the contact seal of formation face with two stationary seal rings respectively by the elastic acting force of spring.
In above-mentioned dismountable both-end seal swivel joint, described setting sleeve in the form of a ring, described setting sleeve middle inside has the positioning ring to inner process, on positioning ring, be provided with some positioning holes, described positioning hole is along the axial setting of setting sleeve, and above-mentioned spring is separately positioned in the positioning hole.Positioning hole is set is used for retaining spring, avoid the bending phenomenon takes place in the spring stress process, influence sealing effect.
In above-mentioned dismountable both-end seal swivel joint, described positioning ring radially offers some water ports, and described water port one end is communicated with penetration hole, and the other end is communicated with water outlet.After thermal medium flows into backwater cavity, flow into the water outlet place through penetration hole, water port.
In above-mentioned dismountable both-end seal swivel joint, be provided with catch between described stuffing box gland and the spring, described spring leans on catch.Such structure makes stuffing box gland stressed more even.
In above-mentioned dismountable both-end seal swivel joint, the inboard at described setting sleeve two ends has some the raised lines to inner process respectively, the corresponding recess that can cooperate with raised line that offers on the excircle of described stuffing box gland.Stuffing box gland forms circumferentially fixedly to move axially by raised line and setting sleeve and is connected, and setting is avoided the active force of several springs to differ causing stuffing box gland to twist, influence sealing effect like this.
In above-mentioned dismountable both-end seal swivel joint, be provided with O shape circle between described intake pipe and the hollow rotating shaft.O shape circle is set avoids the thermal medium in the backwater cavity to flow out between hollow rotating shaft and intake pipe.
In above-mentioned dismountable both-end seal swivel joint, described gland is connected on the fixed cover by screw, and is provided with seal ring between gland and fixed cover.
In above-mentioned dismountable both-end seal swivel joint, described fixed cover is connected by screw with bearing support, and is provided with seal ring between fixed cover and bearing support.
Compared with prior art, dismountable both-end seal swivel joint of the present utility model has the following advantages:
1, the effect of this sealing configuration by elastic force realizes Double End contact seal, and two Sealings select for use graphite material and carbofrax material to make respectively, and such sealing configuration motive sealing effect is better;
2, be between sealing configuration, fixed cover, bearing support and the hollow rotating shaft and removably connect, such cleaning for convenience detach is set, and can check the sealing effect of sealing configuration timely, change the sealing configuration of wearing and tearing.
Description of drawings
Fig. 1 is the cross-sectional view of the dismountable both-end seal swivel joint of the utility model.
Fig. 2 is the cross-sectional view of the dismountable both-end seal swivel joint of the utility model hollow core rotating shaft.
Fig. 3 is the cross-sectional view of sealing configuration in the dismountable both-end seal swivel joint of the utility model.
Fig. 4 is the cross-sectional view of setting sleeve A-A in Fig. 3 in the dismountable both-end seal swivel joint of the utility model.
Fig. 5 is the structural representation of setting sleeve in the dismountable both-end seal swivel joint of the utility model.
Fig. 6 is the structural representation of stuffing box gland in the dismountable both-end seal swivel joint of the utility model.
Among the figure, 1, hollow rotating shaft; 11, shoulder block; 12, circular groove; 13, penetration hole; 14, groove; 2, fixed cover; 21, water outlet; 3, gland; 31, water intake; 4, bearing support; 5, sealing configuration; 51, stationary seal ring; 52, dynamic seal; 52a, stuffing box gland; 52b, setting sleeve; 52c, spring; 52d, positioning ring; 52e, positioning hole; 52f, catch; 52g, raised line; 52h, recess; 52k, water port; 6, bearing; 7, seal ring; 8, screw; 9, thread screw; 10a, circlip; 10b, axle sleeve; 10c, bearing cover; 10d, intake pipe; 10e, backwater cavity; 10f, baffle ring; 10g, O shape circle; 10h, sealing gasket.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Extremely shown in Figure 5 as Fig. 1, dismountable both-end seal swivel joint of the present utility model comprises hollow rotating shaft 1, fixed cover 2, gland 3, intake pipe 10d, bearing support 4, bearing 6, seal ring 7 and the sealing configuration 5 between hollow rotating shaft 1 and gland 3, bearing support 4.
As shown in Figure 2, hollow rotating shaft 1 one ends have the penetration hole 13 that connects sidewall; Offer two grooves 14 in the inboard of hollow rotating shaft 1 and be used to be provided with O shape circle 10g, the outside has the shoulder block 11 and the circular groove 12 of annular, is provided with circlip 10a on circular groove 12.Hollow rotating shaft 1 of the present utility model is provided with 6, two bearings 6 of two bearings and is arranged between shoulder block 11 and the circlip 10a and leans respectively on shoulder block 11 and circlip 10a, fixes by axle sleeve 10b between two bearings 6.Bearing support 4 is set in bearing 6 outer one ends and leans end at a bearing 6, the other end of bearing support 4 is connected with bearing cover 10c by screw 8, bearing cover 10c roof pressure is on another bearing 6, and this is arranged so that bearing support 4 is connected with hollow rotating shaft 1 formation.
Fixed cover 2 is tubular, has water outlet 21 on fixed cover 2.Fixed cover 2 is enclosed within on the hollow rotating shaft 1, and the one end is connected on the bearing support 4 by screw 8, is provided with seal ring 7 and seals between this end and bearing support 4; Gland 3 is provided with water intake 31, and gland 3 is connected the other end of fixed cover 2 by screw 8, and the water intake 31 on the gland 3 is communicated with intake pipe 10d, is provided with seal ring 7 and seals between gland 3 and fixed cover 2.
As Fig. 3, Fig. 4, Fig. 5 and shown in Figure 6, sealing configuration 5 is arranged in the fixed cover 2, comprises two stationary seal rings 51 and the dynamic seal 52 that is connected on the hollow rotating shaft 1.Dynamic seal 52 comprises by thread screw 9 and is connected in setting sleeve 52b, two stuffing box gland 52a, two catch 52f, two the sealing gasket 10h on the hollow rotating shaft 1 and is arranged on eight spring 52c in the setting sleeve 52b; Setting sleeve 52b middle inside has the positioning ring 52d to inner process, eight the positioning hole 52e that are axially arranged with at positioning ring 52d upper edge setting sleeve 52b, eight spring 52c are separately positioned in eight positioning hole 52e, and this setting is avoided in the spring 52c loading process bending taking place; Also offer water port 52k radially at the middle part of positioning ring 52d, after setting sleeve 52b installed, the end of water port 52k was communicated with penetration hole 13, and the other end is communicated with water outlet 21; The inboard at setting sleeve 52b two ends has four raised line 52g to inner process respectively, has spacing between raised line 52g interior edge face and the positioning ring 52d; Stuffing box gland 52a is made by carbofrax material, stuffing box gland 52a and catch 52f excircle on the corresponding recess 52h that can cooperate that offers with raised line 52g, two stuffing box gland 52a are arranged on that its recess 52h cooperates with raised line 52g in the two ends of setting sleeve 52b; Catch 52f is between stuffing box gland 52a and spring 52c, two catch 52f cooperate with raised line 52g from the two ends of setting sleeve 52b by recess 52h and stretch into and lay respectively between raised line 52g and the positioning ring 52d, the two ends of spring 52c lean respectively on two catch 52f, after catch 52f rotates an angle, for to contact with the raised line 52g interior edge face of setting sleeve 52b, this is provided with can effectively control the specified stressed of stuffing box gland 52a at the stroke of the effect lower stop piece 52f of spring force maximum; Two sealing gasket 10h are separately positioned between two stuffing box gland 52a and the hollow rotating shaft 1 and seal.Two stationary seal rings 51 are made by graphite material, two stationary seal rings 51 are set on the hollow rotating shaft 1, a stationary seal ring 51 is arranged between bearing support 4 and the hollow rotating shaft 1, another stationary seal ring 51 is arranged between gland 3 and the hollow rotating shaft 1, the rubber ring that has some projections on stationary seal ring 51 excircles is arranged so that like this sealing effect was better when stationary seal ring 51 was connected with gland 3 or bearing support 4.The end face of stuffing box gland 52a its end face and stationary seal ring 51 under the effect of spring 52c is fitted, when dynamic seal 52 and hollow rotating shaft 1 rotate together, and the faying surface formation motive sealing of stuffing box gland 52a and stationary seal ring 51.
The water intake 31 of gland 3 of the present utility model is connected with thermal medium sources such as liquid state, gaseous states, the thermal medium source and course is through intake pipe 10d, flow into again in the backwater cavity 10e between hollow rotating shaft 1 and the intake pipe 10d, and, flow to the water outlet 21 on the fixed cover 2 again by the penetration hole 13 of hollow rotating shaft 1, the water port 52k of setting sleeve 52b.Because hollow rotating shaft 1 can rotate relative to bearing support 4, fixed cover 2 and gland 3, and carrying out motive sealing by sealing configuration 5 connects, so when the device that is connected with hollow rotating shaft 1 rotates, gland 3, fixed cover 2, bearing support 4, the device that is connected with the water intake 31 of gland 3 and the device that is connected with the water outlet 21 of fixed cover 2 can keep motionless, but can realize the medium circulation of heat simultaneously again.In addition, connect by dismountable screw 8 between fixed cover 2 of the present utility model, bearing support 4, gland 3 and the bearing cover 10c, such cleaning for convenience detach is set, and can check the sealing effect of sealing configuration 5 timely, change the sealing configuration 5 of wearing and tearing.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used hollow rotating shaft 1 morely, shoulder block 11, circular groove 12, penetration hole 13, groove 14, fixed cover 2, water outlet 21, gland 3, water intake 31, bearing support 4, sealing configuration 5, stationary seal ring 51, dynamic seal 52, stuffing box gland 52a, setting sleeve 52b, spring 52c, positioning ring 52d, positioning hole 52e, catch 52f, raised line 52g, recess 52h, water port 52k, bearing 6, seal ring 7, screw 8, thread screw 9, circlip 10a, axle sleeve 10b, bearing cover 10c, intake pipe 10d, backwater cavity 10e, baffle ring 10f, O shape circle 10g, terms such as sealing gasket 10h, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (10)
1. dismountable both-end seal swivel joint comprises intake pipe (10d), hollow rotating shaft (1), has the gland (3) of water intake (31) and has the fixed cover (2) of water outlet (21) that described hollow rotating shaft (1) radially offers penetration hole (13); Described intake pipe (10d) is arranged in the hollow rotating shaft (1) and forms the backwater cavity (10e) of hollow with hollow rotating shaft (1), and above-mentioned penetration hole (13) is communicated with backwater cavity (10e); Described hollow rotating shaft (1) is arranged in the fixed cover (2) and is rotationally connected with fixed cover (2), and the water outlet (21) on the described fixed cover (2) is communicated with penetration hole (13); Described gland (3) is connected an end of fixed cover (2), and the water intake (31) on the gland (3) is communicated with an end of intake pipe (10d), the other end of intake pipe (10d) is communicated with backwater cavity (10e), it is characterized in that, described fixed cover (2) removably connects with hollow rotating shaft (1), and described water outlet (21) is located to be provided with and can be made hollow rotating shaft (1) and gland (3) and hollow rotating shaft (1) form the sealing configuration (5) that seals with fixed cover (2).
2. dismountable both-end seal swivel joint according to claim 1, it is characterized in that, the outer bearing support (4) that is provided with of described hollow rotating shaft (1), be provided with bearing (6) between described bearing support (4) and the hollow rotating shaft (1), the other end of above-mentioned fixed cover (2) is connected on the bearing support (4).
3. dismountable both-end seal swivel joint according to claim 2, it is characterized in that, described sealing configuration (5) comprises two stationary seal rings (51) and is connected in dynamic seal (52) on the hollow rotating shaft (1), a described stationary seal ring (51) is arranged between hollow rotating shaft (1) and the gland (3), another stationary seal ring (51) is arranged between hollow rotating shaft (1) and the bearing support (4), and described dynamic seal (52) leans on two stationary seal rings (51).
4. dismountable both-end seal swivel joint according to claim 3, it is characterized in that, described dynamic seal (52) comprises the setting sleeve (52b) that is connected with hollow rotating shaft (1), be separately positioned on two stuffing box glands (52a) at setting sleeve (52b) two ends and be arranged on some springs (52c) in the setting sleeve (52b), and the two ends of described spring (52c) can roof pressure stuffing box glands (52a) fit stuffing box gland (52a) and stationary seal ring (51) to form sealing.
5. dismountable both-end seal swivel joint according to claim 4, it is characterized in that, described setting sleeve (52b) in the form of a ring, described setting sleeve (52b) middle inside has the positioning ring (52d) to inner process, on positioning ring (52d), be provided with some positioning holes (52e), described positioning hole (52e) is along the axial setting of setting sleeve (52b), and above-mentioned spring (52c) is separately positioned in the positioning hole (52e).
6. dismountable both-end seal swivel joint according to claim 5, it is characterized in that, described positioning ring (52d) radially offers some water ports (52k), and described water port (52k) end is communicated with penetration hole (13), and the other end is communicated with water outlet (21).
7. dismountable both-end seal swivel joint according to claim 4 is characterized in that, is provided with catch (52f) between described stuffing box gland (52a) and the spring (52c), and described spring (52c) leans on catch (52f).
8. dismountable both-end seal swivel joint according to claim 1 and 2 is characterized in that, is provided with O shape circle (10g) between described intake pipe (10d) and the hollow rotating shaft (1).
9. dismountable both-end seal swivel joint according to claim 1 and 2 is characterized in that, described gland (3) is connected by screw (8) with fixed cover (2), and is provided with seal ring (7) between gland (3) and fixed cover (2).
10. dismountable both-end seal swivel joint according to claim 2 is characterized in that, described fixed cover (2) is connected by screw (8) with bearing support (4), and is provided with seal ring (7) between fixed cover (2) and bearing support (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206916930U CN201916625U (en) | 2010-12-30 | 2010-12-30 | Dismountable double-end sealing rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206916930U CN201916625U (en) | 2010-12-30 | 2010-12-30 | Dismountable double-end sealing rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201916625U true CN201916625U (en) | 2011-08-03 |
Family
ID=44416421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206916930U Expired - Lifetime CN201916625U (en) | 2010-12-30 | 2010-12-30 | Dismountable double-end sealing rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201916625U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455867A (en) * | 2013-09-20 | 2015-03-25 | 滕州市宇航旋转接头制造有限公司 | Double-mechanical-seal type rotary joint |
| CN109591772A (en) * | 2018-12-26 | 2019-04-09 | 广东车海洋环保科技有限公司 | A kind of split type carwash rocker arm easy to disassemble |
| CN113028062A (en) * | 2021-02-04 | 2021-06-25 | 益阳橡胶塑料机械集团有限公司 | Novel double-sealing structure of through-shaft rotor of internal mixer and mounting method thereof |
-
2010
- 2010-12-30 CN CN2010206916930U patent/CN201916625U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455867A (en) * | 2013-09-20 | 2015-03-25 | 滕州市宇航旋转接头制造有限公司 | Double-mechanical-seal type rotary joint |
| CN109591772A (en) * | 2018-12-26 | 2019-04-09 | 广东车海洋环保科技有限公司 | A kind of split type carwash rocker arm easy to disassemble |
| CN113028062A (en) * | 2021-02-04 | 2021-06-25 | 益阳橡胶塑料机械集团有限公司 | Novel double-sealing structure of through-shaft rotor of internal mixer and mounting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110803 |
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| CX01 | Expiry of patent term |