CN2591376Y - Graphite ring floating rotary joint - Google Patents
Graphite ring floating rotary joint Download PDFInfo
- Publication number
- CN2591376Y CN2591376Y CN 02251380 CN02251380U CN2591376Y CN 2591376 Y CN2591376 Y CN 2591376Y CN 02251380 CN02251380 CN 02251380 CN 02251380 U CN02251380 U CN 02251380U CN 2591376 Y CN2591376 Y CN 2591376Y
- Authority
- CN
- China
- Prior art keywords
- graphite annulus
- ring
- housing
- swivel joint
- floating type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a graphite ring floating rotary joint which is mainly characterized in that the utility model is provided with two bearings which have a certain space and which are parallel with each other in the axial direction. A movable ring is arranged between a shaft body and a carbon ring. A ring-shaped rubber ring is arranged between the casing and one end of the carbon ring, and one end of the carbon ring is next to a spring seat. The carbon ring and a casing which is corresponding to the carbon ring are provided with a rotation stop mechanism. A position which is corresponding to a movable part is provided with a corrosion resistant lining which is connected with the movable part, and the position is arranged in a black metal casing. The utility model which has the advantages of good sealing performance, long service life, low cost, few wearing parts, convenient maintenance, high temperature resistance, and working temperature of 250 DEG C is suitable for medium, such as water, steam, hot oil, etc.
Description
Technical field the utility model relates to a kind of joint, the swivel joint that is connected between the rotatable parts that are used in particular for machine and the static pipeline.
Background technique is present, a lot, the more advanced swivel joint of selling on the market of swivel joint kind is though it has multiple model, but basic structure is: tubular shape axis body one end can link to each other with the machine rotary component, and the outer circumferential face of the other end is provided with the inner ring of the rolling bearing that is complementary with it.The outer ring of this rolling bearing is located in the housing of medium import and export.The axis body that is positioned at housing partly holds the top adjacent with graphite annulus, and the other end of this graphite annulus is provided with spring seat and spring.Its deficiency is: graphite annulus directly contacts with axis body, and surface both degree of finish is all very low, and easily because of wearing and tearing produce leakage, simultaneously graphite annulus is again with the axis body rotation, causes that sealing effect is bad also easily to be leaked.The housing of above-mentioned swivel joint adopts brass to make in addition, though it is corrosion-resistant, cost is higher.
The summary of the invention the purpose of this utility model is to provide a kind of good sealing effect, the floating type swivel joint of the graphite annulus of long service life.The utility model mainly includes axis body, bearing, housing, graphite annulus, spring and moving-coil and cushion rubber.Wherein, swivel joint has axis body same as the prior art, its outer circumferential face is provided with the inner ring of bearing, this bearing can be that rolling bearing also can be a unlubricated bearing, no matter any all is two arranged side by side axially at regular intervals, each part of swivel joint that these passive two bearings make cantilever work is all the time at same shaft axis, to guarantee its sealability.The outer ring of above-mentioned two bearings is located at a side of the housing of medium import and export.In this housing, be provided with the graphite annulus that is mated.Between graphite annulus and housing, be provided with annular moving-coil, this surface of contact that is embedded in moving-coil of being made by the ultrahard material on the axis body and graphite annulus makes it special light, special flat through mirror process, and friction factor is minimum, good sealing effect has so not only also prolonged simultaneously working life of graphite annulus.For increasing the sealability of this swivel joint, guarantee that graphite annulus does not rotate, on graphite annulus and pairing housing thereof, be provided with rotation preventive mechanism, it includes metal spline ring that is fixed on the graphite annulus and the spline part that is mated, its structure can have various ways, establish slit opening or outer projection as metal spline ring, it is corresponding with set block or pin or groove on the housing, rotates with the restriction graphite annulus.Owing between graphite annulus and the housing radial clearance is arranged, therefore between the graphite annulus of an adjacent side and housing, be provided with ring apron, to seal with spring seat.For reducing cost; can adopt the ferrous metal housing; but need in this housing with movable part such as graphite annulus, rotation in manage on the corresponding position and be provided with the cylindrical sleeve of making by resistant material that connects together with it; it can not directly contact medium or air in the joint with the ferrous metal housing; can not produce corrosion, to guarantee the activity space of movable part.The graphite annulus opposite side is provided with spring seat same as the prior art and spring in housing.
The utility model has following advantage compared to existing technology: good seal performance, long service life, low, the few easy workout part, easy to maintenance of cost, even this joint works long hours, only need get final product by the replacing graphite annulus, general swivel joint is changed conveniently, the replacing part is minimum.The utility model is high temperature resistant, and operating temperature can reach 250 ℃, is applicable to media such as water, steam and deep fat.
The drawing explanation
Fig. 1 is that the utility model example 1 main looking partly cutd open schematic representation
Fig. 2 is that the utility model example 2 main looking are partly cutd open schematic representation
Fig. 3 is the utility model example 3 partial cutaway schematic
Embodiment is looked the floating type swivel joint master of unidirectional graphite annulus shown in Figure 1 and is partly cutd open in the schematic representation, the outer circumferential face of axis body (1) the other end that the one end can link to each other with the machine turns parts be provided with two arranged side by side by spacing ball bearing (3) inner ring of spacer ring (2), the outer ring of these two ball bearings is located in the housing (4) of medium import or export.Be positioned between the axis body the other end of housing and the graphite annulus (5) and be provided with moving-coil (6), this surface of contact that is embedded in moving-coil on the axis body and graphite annulus is through mirror process.The opposite side of graphite annulus is provided with spring seat (7) and spring (8).Be provided with the corrosion-resistant lining of inlaying thereon (9) on other position corresponding with graphite annulus in the ferrous metal housing.In having, be provided with ring apron (10) between the graphite annulus of the housing of cover and spring seat one side.Be provided with fastening metal spline ring (11) thereon on graphite annulus, the block on this spline ring is corresponding with the interior set groove of housing.The swivel joint of this structure is connected to the both sides of main frame, and medium enters main frame from a joint and returns from another joint then.Shown in Figure 2 two-way in the master of the floating type swivel joint of pipe fixed graphite annulus look and partly cut open in the schematic representation, its structure is identical with example 1, just on housing, be provided with the import and the outlet of medium simultaneously, and interior pipe (12) threaded one end of this swivel joint is connected housing and is connected with in the outlet end of elbow (13), and the other end inserts main frame revolving part inner chamber.This structure can be implemented in the entering and returning of the same side medium of main frame.Shown in Figure 3 two-way in the floating type swivel joint of the rotary-type graphite annulus of pipe import and export in the partial cutaway schematic of part, its structure is basic identical with example 2, just interior pipe (14) one ends of this swivel joint are fixed on main frame revolving part inner chamber, this interior pipe the other end that crosses housing reaches outside the housing, and itself and housing contact segment also are provided with corrosion-resistant lining.The part that pipe is positioned at outside the housing in being somebody's turn to do is provided with seal ring (15), submissile spring abutment (16), little spring (17) and elbow (18) successively.This structure can realize entering and returning of main frame the same side medium.
Claims (5)
1. floating type swivel joint of graphite annulus, its axis body one end can link to each other with the machine turns parts, the outer circumferential face of the other end is provided with the inner ring of the bearing that is complementary with it, the outer ring of this bearing is located in the housing of medium import and export, the axis body end top that is positioned at housing is adjacent with graphite annulus, the opposite side of this graphite annulus is provided with spring seat and spring, it is characterized in that: bearing is two arranged side by side axially at regular intervals.
2. the floating type swivel joint of graphite annulus according to claim 1 is characterized in that: do not have moving-coil between axis body and the graphite annulus.
3. the floating type swivel joint of graphite annulus according to claim 1 and 2 is characterized in that: be provided with ring apron between the graphite annulus of the adjacent side with spring seat of housing.
4. the floating type swivel joint of graphite annulus according to claim 3 is characterized in that: be provided with rotation preventive mechanism on graphite annulus and pairing housing thereof.
5. the floating type swivel joint of graphite annulus according to claim 4 is characterized in that: in the ferrous metal housing, the position corresponding with movable part is provided with the corrosion-resistant lining that connects together with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02251380 CN2591376Y (en) | 2002-12-16 | 2002-12-16 | Graphite ring floating rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02251380 CN2591376Y (en) | 2002-12-16 | 2002-12-16 | Graphite ring floating rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2591376Y true CN2591376Y (en) | 2003-12-10 |
Family
ID=33721257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02251380 Expired - Lifetime CN2591376Y (en) | 2002-12-16 | 2002-12-16 | Graphite ring floating rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2591376Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305322A (en) * | 2011-08-23 | 2012-01-04 | 大连橡胶塑料机械股份有限公司 | Rotary joint capable of being mounted in through-shaft manner |
| CN102606825A (en) * | 2012-04-01 | 2012-07-25 | 大连华阳光大密封有限公司 | Rotary joint transitional ring with rotation preventive structure |
| CN103234088A (en) * | 2013-05-17 | 2013-08-07 | 滕州市惠丰机械制造有限公司 | Wear-resistant rotating joint |
| CN115111369A (en) * | 2022-06-28 | 2022-09-27 | 福建省闽旋科技股份有限公司 | Rotary sealing device of flexible printing machine |
-
2002
- 2002-12-16 CN CN 02251380 patent/CN2591376Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305322A (en) * | 2011-08-23 | 2012-01-04 | 大连橡胶塑料机械股份有限公司 | Rotary joint capable of being mounted in through-shaft manner |
| CN102606825A (en) * | 2012-04-01 | 2012-07-25 | 大连华阳光大密封有限公司 | Rotary joint transitional ring with rotation preventive structure |
| CN103234088A (en) * | 2013-05-17 | 2013-08-07 | 滕州市惠丰机械制造有限公司 | Wear-resistant rotating joint |
| CN103234088B (en) * | 2013-05-17 | 2014-11-12 | 滕州市惠丰机械制造有限公司 | Wear-resistant rotating joint |
| CN115111369A (en) * | 2022-06-28 | 2022-09-27 | 福建省闽旋科技股份有限公司 | Rotary sealing device of flexible printing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20121216 Granted publication date: 20031210 |