CN204083591U - A kind of RX type swivel joint of improvement - Google Patents
A kind of RX type swivel joint of improvement Download PDFInfo
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- CN204083591U CN204083591U CN201420428934.0U CN201420428934U CN204083591U CN 204083591 U CN204083591 U CN 204083591U CN 201420428934 U CN201420428934 U CN 201420428934U CN 204083591 U CN204083591 U CN 204083591U
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Abstract
The utility model provides a kind of RX type swivel joint of improvement, comprise housing, outer tube, interior pipe, counterbalance spring and seal ring, above-mentioned housing is spheroidal graphite cast iron housing, be locked outside one end that seal ring is adjacent with counterbalance spring stainless steel lining, and corresponding female is provided with the installation groove installed for stainless steel lining on the madial wall of first flow, the outer side wall of above-mentioned stainless steel lining coordinates with the cell wall of above-mentioned installation groove is closely connected, end, one end drive fit that above-mentioned tension spring contacts with above-mentioned seal ring is flush-mounted in above-mentioned stainless steel lining, above-mentioned inlet is between above-mentioned stainless steel lining and the second end end of above-mentioned first flow.The beneficial effects of the utility model are: the fabricating cost that can be greatly reduced swivel joint by spheroidal graphite cast iron housing is lower; And can not to be got rusty phenomenon by the sealing position that stainless steel lining can ensure between housing and seal ring, ensure that the prerequisite lower shell body reducing housing cost is unaffected with the sealing coordinated between seal ring.
Description
Technical field
The utility model relates to a kind of swivel joint, and it is for the conveying of medium between fixing part and rotary part.
Background technique
Traditional RX type swivel joint, its structure generally comprises housing, outer tube, interior pipe, counterbalance spring and seal ring, first flow is provided with in this housing, the sidewall of this housing offer for the inlet in extraneous medium inflow first flow, the first end of this outer tube is installed in the first end of first flow by the spring bearing be sheathed on outside outer tube, second end of outer tube is in outside housing, the first end of this outer tube is connected with the second end of first flow, this interior pipe box is located in outer tube, and the first end that the first end of interior pipe stretches out outer tube is outer in the second end of first flow, and the second end of first flow is closely connected, the first end end of this interior pipe is stretched out outside housing, second end of interior pipe stretches out outside the second end of outer tube, between interior pipe and outer tube, there is ebb interval, this counterbalance spring and seal ring are sheathed on outside the first end of this interior pipe respectively, and be in first flow, sealing ring is sticked outside the first end end of this outer tube, and closely cooperate with the madial wall of first flow, be convexly equipped with in second end of this first flow for counterbalance spring end against against boss, counterbalance spring is tensioned to seal ring and against between boss, this inlet is in counterbalance spring place.This kind of RX type revolves swivel joint, and liquid during work in static duct passes through inlet, first flow, the first end port of outer tube, excessively ebb interval successively in rotating equipment, and meanwhile, the reflux medium in rotating equipment reclaims through interior pipe.
This kind of RX type swivel joint, its housing adopts cast copper or stainless steel to make, cast copper or stainless anticorrosion, rustless property strong, but price is high, makes the fabricating cost of housing high like this, and then causes the cost of swivel joint higher; Meanwhile, this kind of RX type swivel joint can only be applied on the equipment of two-way binary channel, and can not be applied on unidirectional unipath equipment, application area is less.
In view of this, the structure of the present inventor to RX type swivel joint is furtherd investigate, and this case produces thus.
Model utility content
The purpose of this utility model is to provide the RX type swivel joint of the improvement that a kind of cost is low.
Another object of the present utility model is the RX type swivel joint providing a kind of improvement, and it can be applicable on the equipment of two-way binary channel, also can apply on unidirectional unipath equipment, applied range.
The technological scheme that the utility model adopts is such: a kind of RX type swivel joint of improvement, comprise housing, outer tube, interior pipe, counterbalance spring and seal ring, the first flow at through housing two ends is provided with in this housing, the sidewall of this housing offer for the inlet in extraneous medium inflow first flow, the first end of this outer tube is installed in the first end of first flow by the spring bearing be sheathed on outside outer tube, and the first end port of outer tube is connected with the second end of first flow, second end of outer tube is in outside the first end of housing, this interior pipe box is located in outer tube, and the first end that the first end of interior pipe stretches out outer tube is outer in the second end of first flow, and the second end of first flow is closely connected, the first end end of interior pipe is stretched out outside the second end of housing, second end of interior pipe stretches out outside the second end of outer tube, between interior pipe and outer tube, there is ebb interval, this counterbalance spring and seal ring are sheathed on outside the first end of this interior pipe respectively, and be in first flow, and sealing ring is sticked outside the first end end of this outer tube, be convexly equipped with in second end of this first flow for counterbalance spring end against against boss, counterbalance spring is tensioned to seal ring and against between boss, this inlet is in counterbalance spring place, above-mentioned housing is spheroidal graphite cast iron housing, be locked outside one end that above-mentioned seal ring is adjacent with above-mentioned counterbalance spring stainless steel lining, and corresponding female is provided with the installation groove installed for above-mentioned stainless steel lining cover on the madial wall of above-mentioned first flow, the outer side wall of above-mentioned stainless steel lining coordinates with the cell wall of above-mentioned installation groove is closely connected, end, one end drive fit that above-mentioned tension spring contacts with above-mentioned seal ring is flush-mounted in above-mentioned stainless steel lining, and above-mentioned inlet is between above-mentioned stainless steel lining and the second end end of above-mentioned first flow.
Above-mentioned spring bearing is provided with two, two above-mentioned spring bearings are sheathed on outside the first end of above-mentioned outer tube respectively, the position of first end outer side wall between two above-mentioned spring bearings of above-mentioned housing offers pouring orifice, above-mentioned pouring orifice is provided with pump nozzle, and the spacer be clamped in outside two above-mentioned spring bearings that is locked outside the first end of above-mentioned outer tube.
The joint place that the first end end that the outer side wall of above-mentioned housing is positioned at above-mentioned seal ring and above-mentioned outer tube fits offers peep hole.
The outer side wall of above-mentioned housing is provided with its free end corresponding to stainless steel lining place and stretches in housing, and free end end holds out against the puller bolt on stainless steel lining outer side wall.
Above-mentioned puller bolt is provided with four, four above-mentioned puller bolts are spaced apart along the circumferencial direction of housing, and above-mentioned seal ring offers restraining groove for the position of wherein two puller bolts, the free end end of this two puller bolt is each passed through stainless steel lining and correspondingly stretches in two restraining grooves.
Above-mentioned installation groove and above-mentioned stainless steel lining are sealed by the O-ring seals be set in outside above-mentioned stainless steel lining between the end, one end that above-mentioned tension spring is adjacent.
Second end end of above-mentioned housing is provided with elbow, the first end end of above-mentioned elbow is stretched in the second end end of above-mentioned housing, and be screwed together with housing, second end of above-mentioned elbow is arranged down, the first end end of above-mentioned interior pipe is locked in the first end end of above-mentioned elbow, and to be sealed by the O-ring seals be set in outside above-mentioned interior pipe between above-mentioned interior pipe and above-mentioned elbow, be provided with the above-mentioned elbow of shutoff in the second end of above-mentioned elbow, and assemble with above-mentioned elbow spiral shell the plug closed.
By adopting preceding solution, the RX type swivel joint of a kind of improvement of the present utility model, because housing is spheroidal graphite cast iron housing, the price of spheroidal graphite cast iron is lower than cast copper, stainless price, like this, greatly reduce the cost of housing, make the fabricating cost of swivel joint lower; Be locked outside one end that seal ring is adjacent with counterbalance spring simultaneously stainless steel lining, stainless steel lining cover has anticorrosion, antirust function, then can ensure can not to get rusty phenomenon in sealing position that housing coordinates with seal ring by this stainless steel lining, avoiding sealing position housing being matched with seal ring because spheroidal graphite cast iron easily gets rusty easily get rusty and cause the problem of sealing difference, ensure that the prerequisite lower shell body reducing housing cost is unaffected with the sealing coordinated between seal ring; Again because the second end place of housing is provided with the elbow coordinated that to communicate with the first end of interior pipe, dismountable plug is provided with, like this, if interior pipe conducting when being disassembled in elbow by plug in second end of elbow, now swivel joint can be applicable on the equipment of two-way binary channel
If plug is arranged on elbow Nei Shinei pipe cut-off, now swivel joint can be applicable on unidirectional unipath equipment, realize single, double to switch application, applied range.
Accompanying drawing explanation
Fig. 1 is cut-away view of the present utility model.
In figure:
Housing 1 first flow 11
Inlet 12 peep hole 13
Pipe 3 in outer tube 2
Counterbalance spring 4 seal ring 5
Spring bearing 6 stainless steel lining 7
O-ring seals 81 O-ring seals 82
Ebb interval 100 crossed by puller bolt 9
Pump nozzle 200 spacer 300
Elbow 400
Embodiment
The RX type swivel joint of a kind of improvement of the present utility model, as shown in Figure 1, comprise housing 1, outer tube 2, interior pipe 3, counterbalance spring 4 and seal ring 5, the first flow 11 at through housing 1 two ends is provided with in this housing 1, the sidewall of this housing 1 offer for the inlet 12 in extraneous medium inflow first flow 11, the first end of this outer tube 2 is installed in the first end of first flow 11 by the spring bearing 6 be sheathed on outside outer tube 2, and the first end port of outer tube 2 is connected with the second end of first flow 11, second end of outer tube 2 is in outside the first end of housing 1, this interior pipe 3 is sheathed in outer tube 2, and the first end that the first end of interior pipe 3 stretches out outer tube 2 is outer in the second end of first flow 11, and the second end of first flow 11 is closely connected, the first end end of interior pipe 3 is stretched out outside the second end of housing 1, second end of interior pipe 3 stretches out outside the second end of outer tube 2, between interior pipe 3 and outer tube 2, there is ebb interval 100, this counterbalance spring 4 and seal ring 5 are sheathed on outside the first end of this interior pipe 3 respectively, and be in first flow 11, and sealing ring 5 is sticked outside the first end end of this outer tube 2, be convexly equipped with in second end of this first flow 11 for counterbalance spring 4 end against against boss, the first end of counterbalance spring 4 is resisted against against on boss, second end of counterbalance spring 4 is resisted against on the end face of seal ring 5, namely counterbalance spring is tensioned to seal ring 5 and against between boss, this inlet 12 is in counterbalance spring 4 place.
Innovation of the present utility model is: this housing 1 is spheroidal graphite cast iron housing, be locked outside one end that seal ring 5 is adjacent with counterbalance spring 4 stainless steel lining 7, and corresponding female is provided with the installation groove installed for above-mentioned stainless steel lining cover 7 on the madial wall of first flow 11, stainless steel lining 7 is flush-mounted in be installed in groove, namely the outer side wall of stainless steel lining 7 coordinates with the cell wall installing groove is closely connected, and installation groove and stainless steel lining 7 are sealed by the O-ring seals 81 be set in outside stainless steel lining 7 between the end, one end that tension spring 4 is adjacent, and the cell wall installing groove is arranged with is flush-mounted in interior Sealing mounting groove for this O-ring seals 81, second end end (end, one end namely contacted with the seal ring 5) drive fit of this tension spring 4 is flush-mounted in stainless steel lining 7, inlet 12 is between stainless steel lining 7 and the second end end of first flow 11.
The RX type swivel joint of a kind of improvement of the present utility model, because housing 1 is spheroidal graphite cast iron housing, the price of spheroidal graphite cast iron is lower than cast copper, stainless price, instead of traditional cast copper housing or Stainless Steel Shell, like this, greatly reduce the cost of housing 1, make the fabricating cost of swivel joint lower; Be provided with stainless steel lining 7 between seal ring 5 and housing 1 simultaneously, stainless steel lining 7 has anticorrosion, antirust function, then can ensure can not to get rusty phenomenon in sealing position that housing 1 coordinates with seal ring 5 by this stainless steel lining 7, avoiding sealing position housing 1 being matched with seal ring 5 because spheroidal graphite cast iron easily gets rusty easily get rusty and affect the problem of sealing, ensure that the prerequisite lower shell body 1 reducing housing cost is unaffected with the sealing coordinated between seal ring 5.
Further, the outer side wall of this housing 1 is provided with its free end corresponding to stainless steel lining 7 place and stretches in housing 1, and free end end holds out against the puller bolt 9 on stainless steel lining 7 outer side wall, like this, cooperation is held out against by puller bolt 9 pairs of stainless steel linings 7, stainless steel lining 7 can be limit solid, prevent stainless steel lining 7 from rotating or coming off, to ensure the stability that stainless steel lining 7 is installed; Simultaneously, this puller bolt 9 is provided with four, four puller bolts 9 are spaced apart along the circumferencial direction of housing 1, and seal ring 5 offers restraining groove for the position of wherein two puller bolts 9, and the free end end of this two puller bolt 9 is each passed through stainless steel lining 7 and correspondingly stretches in two restraining grooves; Coordinate that to make puller bolt 9 can carry out limit to seal ring 5 solid like this by two puller bolt 9 free end ends and two restraining grooves, and prevent seal ring 5 from rotating because of the rotation of outer tube 2, and then cause the wearing and tearing of seal ring 5.
Further, this spring bearing 6 is provided with two, two spring bearings 6 are sheathed on outside the first end of outer tube 2 respectively, the position of first end outer side wall between two spring bearings 6 of housing 1 offers pouring orifice, pouring orifice is provided with pump nozzle 200, can to annotate proper lubrication fat regularly to two spring bearings 6 by this pump nozzle 200, thus extend the working life of spring bearing 6, and outside the first end of outer tube 2, be locked on the spacer 300 be clamped in outside two spring bearings 6, the setting of this spacer 300 can by lubricating grease and outer tube 2 isolated, in case lubricating grease is on the impact of outer tube 2.
Further, the outer side wall of this housing 1 is positioned at the joint place that seal ring 5 and the first end end of outer tube 2 fit and offers peep hole 13, regularly can check whether leakage phenomenon occurs, to take maintenance measure in time by this peep hole 13.
An innovation more of the present utility model is: the second end end of this housing 1 is provided with elbow 400, the first end end of elbow 400 is stretched in the second end end of housing 1, and be screwed together with housing 1, second end of elbow 400 is arranged down, the first end end of interior pipe 3 is locked in the first end end of elbow 400, and sealed by the O-ring seals 82 be set in outside interior pipe 3 between interior pipe 3 and elbow 400, be provided with shutoff elbow 400 in second end of elbow 400, and assemble with elbow 400 spiral shell the plug (not shown in FIG.) closed; Like this, if interior pipe 3 conducting when plug is disassembled in the second end of elbow 400, now swivel joint can be applicable on the equipment of two-way binary channel, if the second end Nei Shinei pipe 3 plug being arranged on elbow 400 ends, now swivel joint can be applicable on unidirectional unipath equipment, realize single, double to switch application, applied range.
Above-described embodiment and graphic and non-limiting product form of the present utility model and style, any person of an ordinary skill in the technical field, to its suitable change done or modification, all should be considered as not departing from patent category of the present utility model.
Claims (7)
1. the RX type swivel joint improved, comprise housing, outer tube, interior pipe, counterbalance spring and seal ring, the first flow at through housing two ends is provided with in this housing, the sidewall of this housing offer for the inlet in extraneous medium inflow first flow, the first end of this outer tube is installed in the first end of first flow by the spring bearing be sheathed on outside outer tube, and the first end port of outer tube is connected with the second end of first flow, second end of outer tube is in outside the first end of housing, this interior pipe box is located in outer tube, and the first end that the first end of interior pipe stretches out outer tube is outer in the second end of first flow, and the second end of first flow is closely connected, the first end end of interior pipe is stretched out outside the second end of housing, second end of interior pipe stretches out outside the second end of outer tube, between interior pipe and outer tube, there is ebb interval, this counterbalance spring and seal ring are sheathed on outside the first end of this interior pipe respectively, and be in first flow, and sealing ring is sticked outside the first end end of this outer tube, be convexly equipped with in second end of this first flow for counterbalance spring end against against boss, counterbalance spring is tensioned to seal ring and against between boss, this inlet is in counterbalance spring place, it is characterized in that: above-mentioned housing is spheroidal graphite cast iron housing, be locked outside one end that above-mentioned seal ring is adjacent with above-mentioned counterbalance spring stainless steel lining, and corresponding female is provided with the installation groove installed for above-mentioned stainless steel lining cover on the madial wall of above-mentioned first flow, the outer side wall of above-mentioned stainless steel lining coordinates with the cell wall of above-mentioned installation groove is closely connected, end, one end drive fit that above-mentioned tension spring contacts with above-mentioned seal ring is flush-mounted in above-mentioned stainless steel lining, and above-mentioned inlet is between above-mentioned stainless steel lining and the second end end of above-mentioned first flow.
2. the RX type swivel joint of a kind of improvement according to claim 1, it is characterized in that: above-mentioned spring bearing is provided with two, two above-mentioned spring bearings are sheathed on outside the first end of above-mentioned outer tube respectively, the position of first end outer side wall between two above-mentioned spring bearings of above-mentioned housing offers pouring orifice, above-mentioned pouring orifice is provided with pump nozzle, and the spacer be clamped in outside two above-mentioned spring bearings that is locked outside the first end of above-mentioned outer tube.
3. the RX type swivel joint of a kind of improvement according to claim 1, is characterized in that: the joint place that the first end end that the outer side wall of above-mentioned housing is positioned at above-mentioned seal ring and above-mentioned outer tube fits offers peep hole.
4. the RX type swivel joint of a kind of improvement according to claim 1, it is characterized in that: the outer side wall of above-mentioned housing is provided with its free end corresponding to stainless steel lining place and stretches in housing, and free end end holds out against the puller bolt on stainless steel lining outer side wall.
5. the RX type swivel joint of a kind of improvement according to claim 4, it is characterized in that: above-mentioned puller bolt is provided with four, four above-mentioned puller bolts are spaced apart along the circumferencial direction of housing, and above-mentioned seal ring offers restraining groove for the position of wherein two puller bolts, the free end end of this two puller bolt is each passed through stainless steel lining and correspondingly stretches in two restraining grooves.
6. the RX type swivel joint of a kind of improvement according to claim 1, is characterized in that: above-mentioned installation groove and above-mentioned stainless steel lining are sealed by the O-ring seals be set in outside above-mentioned stainless steel lining between the end, one end that above-mentioned tension spring is adjacent.
7. the RX type swivel joint of a kind of improvement according to claim 1, it is characterized in that: the second end end of above-mentioned housing is provided with elbow, the first end end of above-mentioned elbow is stretched in the second end end of above-mentioned housing, and be screwed together with housing, second end of above-mentioned elbow is arranged down, the first end end of above-mentioned interior pipe is locked in the first end end of above-mentioned elbow, and sealed by the O-ring seals be set in outside above-mentioned interior pipe between above-mentioned interior pipe and above-mentioned elbow, shutoff above-mentioned elbow is provided with in second end of above-mentioned elbow, and assemble with above-mentioned elbow spiral shell the plug closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420428934.0U CN204083591U (en) | 2014-07-31 | 2014-07-31 | A kind of RX type swivel joint of improvement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420428934.0U CN204083591U (en) | 2014-07-31 | 2014-07-31 | A kind of RX type swivel joint of improvement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204083591U true CN204083591U (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420428934.0U Expired - Fee Related CN204083591U (en) | 2014-07-31 | 2014-07-31 | A kind of RX type swivel joint of improvement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204083591U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594286A (en) * | 2016-12-13 | 2017-04-26 | 朱斌 | Dry friction rotary seal device for numerical control punching machine |
-
2014
- 2014-07-31 CN CN201420428934.0U patent/CN204083591U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594286A (en) * | 2016-12-13 | 2017-04-26 | 朱斌 | Dry friction rotary seal device for numerical control punching machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20210731 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |