CN111425600A - Rotary sealing structure and spiral sand-water separator - Google Patents
Rotary sealing structure and spiral sand-water separator Download PDFInfo
- Publication number
- CN111425600A CN111425600A CN202010338027.7A CN202010338027A CN111425600A CN 111425600 A CN111425600 A CN 111425600A CN 202010338027 A CN202010338027 A CN 202010338027A CN 111425600 A CN111425600 A CN 111425600A
- Authority
- CN
- China
- Prior art keywords
- section
- oil
- sealing
- sleeve
- ring
- 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/48—Washing granular, powdered or lumpy materials; Wet separating by mechanical classifiers
- B03B5/52—Spiral classifiers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/02—Shafts; Axles
- F16C3/023—Shafts; Axles made of several parts, e.g. by welding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/08—Rigid support of bearing units; Housings, e.g. caps, covers for spindles
- F16C35/12—Rigid support of bearing units; Housings, e.g. caps, covers for spindles with ball or roller bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/162—Special parts or details relating to lubrication or cooling of the sealing itself
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/324—Arrangements for lubrication or cooling of the sealing itself
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N1/00—Constructional modifications of parts of machines or apparatus for the purpose of lubrication
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention relates to the technical field of spiral sand-water separators, in particular to a rotary sealing structure and a spiral sand-water separator. This kind of rotary seal structure, including the swivel mount, fixed dabber, helical blade axle, the sealing ring, thrust ball bearing, self-aligning roller bearing, separate the axle sleeve, fixed dabber includes the canned paragraph, the pivot section, the swivel mount is including dismantling the annular end cover of connection, the seal cover, the pivot cover, the end cover, the canned cap, the annular end cover is located on the canned paragraph, the annular end cover makes the polyurethane sealing ring compress tightly on the oblique shoulder surface with seal cover locking, the cover is equipped with thrust ball bearing on the pivot section, separate the axle sleeve, self-aligning roller bearing, the end cover extrudees thrust ball bearing with pivot cover locking, with thrust ball bearing, separate the axle sleeve, self-aligning roller bearing is located on the pivot section. The device has long service life and low maintenance cost.
Description
Technical Field
The invention relates to the technical field of spiral sand-water separators, in particular to a rotary sealing structure and a spiral sand-water separator.
Background
The sand-stone separator is the core equipment of a concrete recovery system, a spiral shaft of the spiral sand-water separator needs to be installed obliquely upwards, and a shaft end device and the like which are supported and fixed at the tail part of the spiral shaft are inevitably soaked in sand water, so that the component has higher sealing requirements. The chinese patent with the publication number CN 207951703U discloses a water sealing structure for a spiral sand washer, which has an unsatisfactory sealing effect and the following disadvantages:
① A supporting main body is designed by combining a deep groove ball bearing and a tapered roller bearing, because the screw shaft is installed obliquely upwards, the axial force such as the axial component of the self weight of the screw shaft, the axial component for improving the resistance of materials and the like can only be shared by the tapered roller bearing, and the resistance generated in the working process is randomly changed, so that the working clearance required by the tapered roller bearing is uncontrollable and easy to hold back, and the normal use is influenced;
② the outer connecting sleeve is only provided with an outer connecting sleeve flange at the right end, and the inner wall of the whole outer connecting sleeve is a sealing surface or a matching surface, so that the outer connecting sleeve needs to be finely machined to a deep depth, the machining difficulty is high, and the bearing is difficult to mount and dismount;
③ framework oil seal and L type combined seal ring are used for the core shaft rotation and the cavity is fixed, and the structure is the structure that the outer connecting sleeve rotates and the core shaft is fixed, when the framework oil seal and L type combined seal ring are used on the structure, the framework oil seal and the L type combined seal ring are damaged quickly in the operation process, and the sealing function is lost;
④ all the sealing elements and bearings are only oiled through the same oil duct, once the second sealing ring at the leftmost end is worn and damaged, the mixed pollutants of sand, powder and water can enter the oil duct through the oil guide hole at the leftmost end to reach the first sealing position and the deep groove ball bearing and the tapered roller bearing, so that the first sealing and the bearing are worn and damaged rapidly, and if the second sealing ring is replaced, the whole water sealing structure must be disassembled, and the replacement of the worn second sealing ring is difficult and heavy.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the rotary sealing structure and the spiral sand-water separator which are long in service life, easy to maintain, low in cost and good in sealing performance.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a rotary seal structure characterized in that: the spiral blade shaft is locked and connected with the rotary sleeve through bolts, the fixed mandrel comprises a fixed section, a sealing section and a rotating shaft section, the fixed section is fixedly arranged, the sealing section and the rotating shaft section are rotatably and hermetically arranged in the rotary sleeve, the rotary sleeve comprises an annular end cover, a sealing sleeve, the rotating shaft sleeve and a sealing end cover which are detachably connected through bolts in sequence, the sealing ring is arranged on the sealing section, the shaft diameter of the sealing section is larger than that of the fixed section and the rotating shaft section, the sealing section forms an inclined shaft shoulder surface towards one side of the fixed section and a straight shaft shoulder surface towards one side of the rotating shaft section, the annular end cover is sleeved on the fixed section, one surface of the annular end cover towards the sealing section forms an inclined end surface matched with the inclined shaft shoulder surface, and a polyurethane sealing ring is arranged between the annular end cover and the sealing sleeve, the annular end cover and the sealing sleeve are locked to enable the polyurethane sealing ring to be tightly pressed on the inclined shaft shoulder surface, a thrust ball bearing, a separation shaft sleeve and a self-aligning roller bearing are sleeved on the rotating shaft section, the separation shaft sleeve is arranged between the thrust ball bearing and the self-aligning roller bearing, and the closed end cover and the rotating shaft sleeve are locked to extrude the thrust ball bearing so as to position the thrust ball bearing, the separation shaft sleeve and the self-aligning roller bearing on the rotating shaft section.
Further, a plurality of sealing ring grooves and a plurality of oil storage ring grooves are formed in the sealing section, the sealing ring grooves are arranged adjacent to the oil storage ring grooves, each sealing ring groove and each oil storage ring groove are arranged at intervals, the sealing ring comprises a plurality of slip ring type combined seals, and the slip ring type combined seals are arranged in the sealing ring grooves.
Further, the one end that the seal section is close to straight shaft shoulder face is formed with the undergauge portion, the sealing ring includes a plurality of skeleton oil blanket, on the undergauge portion was located to the skeleton oil blanket, the lip of each skeleton oil blanket was towards pivot section direction.
Furthermore, one end of the sealing sleeve is provided with a flange plate used for being connected with the annular end cover, the flange plate protrudes out of the end portion of the sealing sleeve in a staggered mode, so that a first oil storage cavity is formed among the flange plate, the polyurethane sealing ring, the end face of the sealing sleeve and the sealing section, a first oil path channel is arranged in the fixed core shaft, and the first oil path channel is communicated to the first oil storage cavity.
Furthermore, the inner side of the sealing sleeve, which is positioned at one end of the first oil storage cavity, is provided with an inclined plane facing the direction of the sealing ring groove, and the first oil passage is communicated to the first oil storage cavity at the inclined plane.
Furthermore, a second oil storage cavity is formed among the thrust ball bearing, the separating shaft sleeve, the self-aligning roller bearing and the rotating shaft sleeve, an oil guide channel which is communicated with the inside and the outside is arranged on the separating shaft sleeve, a second oil path channel is arranged in the fixed core shaft, and the second oil path channel is communicated into the second oil storage cavity through the oil guide channel.
Furthermore, a groove is formed in one end, facing the fixed section, of the closed end cover, a third oil storage cavity is formed among the groove, the thrust ball bearing and the fixed section, a second oil passage is arranged in the fixed core shaft, and the second oil passage is communicated to the third oil storage cavity.
Furthermore, a first oil path channel and a second oil path channel are arranged in the fixed mandrel, the first oil path channel and the second oil path channel are not intersected and are arranged independently, the first oil path channel is used for feeding oil through a first oil nozzle, and the second oil path channel is used for feeding oil through a second oil nozzle.
Further, thrust ball bearing includes first seat circle, second seat circle, roller, and the end cover is pressed first seat circle side direction with the locking of pivot cover, has the clearance between first seat circle and pivot section, and second seat circle is connected and is had the clearance between second seat circle and pivot cover with the pivot section contact, and self-aligning roller bearing includes outer lane, inner circle, biserial roller, and the outer lane is connected with pivot cover contact, and the inner circle is connected with pivot section contact, and the inner circle both sides respectively straight shaft shoulder face offsets with separating the axle sleeve.
The utility model provides a spiral sand water separating centrifuge which characterized in that: including a rotary seal structure as claimed in any one of the preceding claims.
According to the description of the invention, compared with the prior art, the rotary sealing structure and the spiral sand-water separator provided by the invention adopt the combination of the thrust ball bearing and the self-aligning roller bearing, and are rotatably supported from two dimensions, so that the effects of mutual matching and mutual protection are achieved, and the service life of the bearing is prolonged; the rotary sleeve is detachably connected by multiple parts, so that the production cost is reduced, the installation and replacement of parts are facilitated, and the maintenance cost is low; three seals and two independent oil passages are adopted, so that the sealing effect is ensured.
Drawings
FIG. 1 is a schematic cross-sectional view of a rotary seal configuration of the present invention.
Fig. 2 is a schematic structural view of the fixing mandrel of the present invention.
FIG. 3 is a partial enlarged view of FIG. 1 according to the present invention.
FIG. 4 is a second enlarged view of the FIG. 1 of the present invention.
The labels in the figure correspond to the following: 1. the oil-gas bearing comprises a rotating sleeve, 11 annular end covers, 111 inclined end faces, 12 sealing sleeves, 121 flange plates, 122 inclined faces, 13 rotating shaft sleeves, 14 closed end covers, 141 grooves, 15 polyurethane sealing rings, 2 fixed mandrels, 21 fixed sections, 22 sealing sections, 221 inclined shaft shoulder faces, 222 straight shaft shoulder faces, 223 sealing ring grooves, 224 oil storage ring grooves, 225 reducing portions, 23 rotating shaft sections, 24 first oil passage channels, 25 second oil passage channels, 26 first oil nozzles, 27 second oil nozzles, 3 spiral blade shafts, 4 sealing rings, 41 sliding ring type combined seals, 42 framework oil seals, 5 thrust ball bearings, 51 first seat rings, 52 second seat rings, 53 rollers, 6 self-aligning roller bearings, 61 outer rings, 62 inner rings, 63 double-row rollers, 7 separating shaft sleeves and 71 oil guide channels.
Detailed Description
The invention is further described below by means of specific embodiments.
Referring to fig. 1 to 4, a rotary seal structure includes a rotary sleeve 1, a fixed core shaft 2, a spiral blade shaft 3, a seal ring 4, a thrust ball bearing 5, a self-aligning roller bearing 6, and a partition sleeve 7.
The spiral blade shaft 3 is locked and connected with the rotary sleeve 1 through a bolt, the fixed mandrel 2 comprises a fixed section 21, a sealing section 22 and a rotating shaft section 23, the fixed section 21 is fixedly provided with a supporting whole sealing device, the sealing section 22 and the rotating shaft section 23 are ensured to be arranged in the rotary sleeve 1 in an unrotatable and sealed manner, the rotary sleeve 1 comprises an annular end cover 11, a sealing sleeve 12, a rotating shaft sleeve 13 and a closed end cover 14 which are sequentially connected in a detachable manner through the bolt, the shaft diameter of the sealing section 22 is larger than that of the fixed section 21 and the rotating shaft section 23, an inclined shaft shoulder surface 221 is formed on one side of the sealing section 22 facing the fixed section 21, a straight shaft shoulder surface 222 is formed on one side of the rotating shaft section 23, the annular end cover 11 is sleeved on the fixed section 21, an inclined end surface 111 matched with the inclined shaft shoulder surface 221 is formed on one side of the annular end cover 11 facing the sealing section 22, a polyurethane sealing ring 15 is arranged between the annular end cover 11 and the sealing sleeve 12, the sealing ring 4 comprises a plurality of sliding ring type combined seals 41 and a plurality of framework oil seals 42, a plurality of sealing ring grooves 223 and a plurality of oil storage ring grooves 224 are formed in the sealing section 22, the sealing ring grooves 223 and the oil storage ring grooves 224 are arranged adjacently, each sealing ring groove 223 and each oil storage ring groove 224 are arranged at intervals, and the sliding ring type combined seals 41 are arranged in the sealing ring grooves 223; one end of the sealing section 22 close to the straight shaft shoulder surface 222 is formed with a reduced diameter portion 225, the skeleton oil seals 42 are arranged on the reduced diameter portion 225, and the lip of each skeleton oil seal 42 faces the direction of the rotating shaft section 23. The thrust ball bearing 5, the separating shaft sleeve 7 and the self-aligning roller bearing 6 are sleeved on the rotating shaft section 23, the separating shaft sleeve 7 is arranged between the thrust ball bearing 2 and the self-aligning roller bearing 6, the thrust ball bearing 5 comprises a first seat ring 51, a second seat ring 52 and rollers 53, the closed end cover 14 and the rotating shaft sleeve 13 are locked to laterally press the first seat ring 51, a gap is formed between the first seat ring 51 and the rotating shaft section 23, the second seat ring 52 is in contact connection with the rotating shaft section 23, a gap is formed between the second seat ring 52 and the rotating shaft sleeve 13, the self-aligning roller bearing 6 comprises an outer ring 61, an inner ring 62 and two rows of rollers 63, the outer ring 61 is in contact connection with the rotating shaft sleeve 13, the inner ring 62 is, and the two sides of the inner ring 62 are respectively abutted against the straight shaft shoulder surface 222 and the separating shaft sleeve 7, the closed end cover 14 and the rotating shaft sleeve 13 are locked to extrude the thrust ball bearing 5, so as to position the thrust ball bearing 5, the separating sleeve 7 and the self-aligning roller bearing 6 on the rotating shaft section 23.
One end of the sealing sleeve 12 is provided with a flange 121 used for being connected with the annular end cover, the flange 121 protrudes out of the end part of the sealing sleeve 12 in a staggered manner, so that a first oil storage cavity is formed among the flange 121, the polyurethane sealing ring 15, the end surface of the sealing sleeve 12 and the sealing section 22, and the inner side of one end, located at the first oil storage cavity, of the sealing sleeve 12 is provided with an inclined surface 122 facing the direction of the sealing ring groove 223. A second oil storage cavity is formed among the thrust ball bearing 5, the separating shaft sleeve 7, the self-aligning roller bearing 6 and the rotating shaft sleeve 13, and an oil guide channel 71 which is communicated with the inside and the outside is arranged on the separating shaft sleeve 7; a groove 141 is formed at one end of the closed end cover 14 facing the fixed section 21, and a third oil storage cavity is formed among the groove 141, the thrust ball bearing 5 and the fixed section 21. A first oil passage 24 and a second oil passage 25 are arranged in the fixed mandrel 2, the first oil passage 24 and the second oil passage 25 are arranged independently without intersection, the first oil passage 24 is fed through a first oil nozzle 26, the second oil passage 25 is fed through a second oil nozzle 27, the first oil passage 24 is communicated into a first oil storage cavity at the inclined surface 122, the second oil passage 25 is communicated into a second oil storage cavity through an oil guide passage 71, and the second oil passage 25 is communicated into a third oil storage cavity.
A spiral sand-water separator comprises a rotary sealing structure.
The working principle of the spiral sealing structure is as follows:
in a spiral sand-water separator, a rotary sealing structure is arranged at the low end of an inclined spiral blade shaft 3 and below the liquid level, a rotary sleeve 1 seals a sealing section 22, a rotary shaft section 23, a sealing ring 4, a thrust ball bearing 5, a self-aligning roller bearing 6, a separating shaft sleeve 7 and other rotary parts in the rotary sleeve so as to completely isolate the rotary parts from sand-water mixed liquid and protect the rotary and sealing parts, because the spiral blade shaft 3 is obliquely arranged, the spiral blade shaft 3 needs to bear the axial component force of the self weight of equipment and the axial component force for improving the resistance of materials when in work, the thrust ball bearing 5 and the self-aligning roller bearing 6 are combined, wherein the thrust ball bearing 5 can offset the axial component force, the influence of the axial component force on the self-aligning roller bearing 6 is avoided, the working clearance of the self-aligning roller bearing 6 is ensured to be controllable and prevented from being blocked, meanwhile, the self-aligning roller bearing 6 can reduce the coaxiality requirement of the equipment, the machining requirement is easily met, the machining cost is reduced, the thrust ball bearing 5 and the self-aligning roller bearing 6 are rotatably supported from two directions, the dimensionality and the mutual cooperation and the mutual protection function of improving.
Can dismantle the connection through the bolt between the annular end cover 11 of swivel sleeve 1, seal cover 12, pivot cover 13, the end cover 14, greatly reduced swivel sleeve 1's processing cost, can not blockked the influence by seal cover 12 at installation and adjustment thrust ball bearing 5, self-aligning roller bearing 6, solved prior art's ② point not enough.
The annular end cover 11 presses the polyurethane sealing ring 15 to the inclined shaft shoulder surface 221 to form a first seal, the plurality of sealing ring grooves 223 and the slip ring type combined seals 41 arranged in the plurality of sealing ring grooves 223 form a second seal, the plurality of framework oil seals 42 arranged on the reducing portion 225 form a third seal, the thrust ball bearing 5 and the self-aligning roller bearing 6 on the rotating shaft section 23 are fully guaranteed not to be in contact with outside sand and water under the three seals, and the first oil storage cavity, the second oil storage cavity, the third oil storage cavity and the oil storage ring groove 224 can store a certain amount of lubricating grease to guarantee the lubricating effect of the sealing ring 4, the thrust ball bearing 5 and the self-aligning roller bearing 6, so that the service life is further prolonged, and the defect of the ③ th point in the prior art is overcome.
The first oil way channel 24 and the second oil way channel 25 of the fixed mandrel 2 are arranged independently without intersection and are respectively fed through the first oil nozzle inlet 26 and the second oil nozzle 27, even if the polyurethane sealing ring 15 is worn to be completely damaged, sand water enters the first oil way channel 24, the second oil way channel 25 cannot be influenced, the polyurethane sealing ring 15 is tightly attached to the inclined shaft shoulder surface 221 by the annular end cover 11, and the polyurethane sealing ring 15 has certain elasticity and self-lubricating function, so that the abrasion of the polyurethane sealing ring 15 and micro deformation generated by working load change can be compensated at any time, the sealing performance of the polyurethane sealing ring 15 is ensured, the annular end cover 11 is detachably connected with the sealing sleeve 12, the polyurethane sealing ring 15 can be replaced only by detaching the annular end cover 11, the rear sealing part and the bearing part are not influenced, the replacement is convenient, and the defect of the ④ point in the prior art is overcome.
The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.
Claims (10)
1. A rotary seal structure characterized in that: the spiral blade shaft is locked and connected with the rotary sleeve through bolts, the fixed mandrel comprises a fixed section, a sealing section and a rotating shaft section, the fixed section is fixedly arranged, the sealing section and the rotating shaft section are rotatably and hermetically arranged in the rotary sleeve, the rotary sleeve comprises an annular end cover, a sealing sleeve, the rotating shaft sleeve and a sealing end cover which are detachably connected through bolts in sequence, the sealing ring is arranged on the sealing section, the shaft diameter of the sealing section is larger than that of the fixed section and the rotating shaft section, the sealing section forms an inclined shaft shoulder surface towards one side of the fixed section and a straight shaft shoulder surface towards one side of the rotating shaft section, the annular end cover is sleeved on the fixed section, one surface of the annular end cover towards the sealing section forms an inclined end surface matched with the inclined shaft shoulder surface, and a polyurethane sealing ring is arranged between the annular end cover and the sealing sleeve, the annular end cover and the sealing sleeve are locked to enable the polyurethane sealing ring to be tightly pressed on the inclined shaft shoulder surface, a thrust ball bearing, a separation shaft sleeve and a self-aligning roller bearing are sleeved on the rotating shaft section, the separation shaft sleeve is arranged between the thrust ball bearing and the self-aligning roller bearing, and the closed end cover and the rotating shaft sleeve are locked to extrude the thrust ball bearing so as to position the thrust ball bearing, the separation shaft sleeve and the self-aligning roller bearing on the rotating shaft section.
2. A rotary seal structure according to claim 1, wherein: the sealing ring is characterized in that a plurality of sealing ring grooves and a plurality of oil storage ring grooves are formed in the sealing section, the sealing ring grooves are arranged adjacent to the oil storage ring grooves, each sealing ring groove and each oil storage ring groove are arranged at intervals, the sealing ring comprises a plurality of slip ring type combined seals, and the slip ring type combined seals are arranged in the sealing ring grooves.
3. A rotary seal structure according to claim 1, wherein: the one end that the sealing section is close to straight shaft shoulder face is formed with the undergauge portion, the sealing ring includes a plurality of skeleton oil blanket, on the undergauge portion was located to the skeleton oil blanket, the lip of each skeleton oil blanket was towards pivot section direction.
4. A rotary seal structure according to claim 2, wherein: one end of the seal sleeve is provided with a flange plate used for being connected with the annular end cover, the flange plate protrudes out of the end portion of the seal sleeve in a staggered mode, so that a first oil storage cavity is formed among the flange plate, the polyurethane seal ring, the end face of the seal sleeve and the seal section, a first oil passage is arranged in the fixed core shaft, and the first oil passage is communicated to the first oil storage cavity.
5. The rotary seal structure according to claim 4, wherein: the inner side of the sealing sleeve, which is positioned at one end of the first oil storage cavity, is provided with an inclined plane facing the direction of the sealing ring groove, and the first oil passage is communicated to the first oil storage cavity at the inclined plane.
6. A rotary seal structure according to claim 1, wherein: a second oil storage cavity is formed among the thrust ball bearing, the separating shaft sleeve, the self-aligning roller bearing and the rotating shaft sleeve, an oil guide channel communicated with the inside and the outside is arranged on the separating shaft sleeve, a second oil path channel is arranged in the fixed core shaft, and the second oil path channel is communicated into the second oil storage cavity through the oil guide channel.
7. A rotary seal structure according to claim 1, wherein: a groove is formed in one end, facing the fixed section, of the closed end cover, a third oil storage cavity is formed among the groove, the thrust ball bearing and the fixed section, a second oil passage is arranged in the fixed core shaft, and the second oil passage is communicated to the third oil storage cavity.
8. A rotary seal structure according to claim 1, wherein: the fixed mandrel is internally provided with a first oil path channel and a second oil path channel, the first oil path channel and the second oil path channel are not intersected and are arranged independently, the first oil path channel is used for feeding oil through a first oil nozzle, and the second oil path channel is used for feeding oil through a second oil nozzle.
9. A rotary seal structure according to claim 1, wherein: the thrust ball bearing comprises a first seat ring, a second seat ring and rollers, wherein the closed end cover and the rotating shaft sleeve are locked to laterally extrude the first seat ring, a gap is formed between the first seat ring and the rotating shaft section, the second seat ring is in contact connection with the rotating shaft section, a gap is formed between the second seat ring and the rotating shaft sleeve, the aligning roller bearing comprises an outer ring, an inner ring and two rows of rollers, the outer ring is in contact connection with the rotating shaft sleeve, the inner ring is in contact connection with the rotating shaft section, and the two sides of the inner ring are respectively abutted to the straight shaft shoulder face and the separating.
10. The utility model provides a spiral sand water separating centrifuge which characterized in that: comprising a rotary seal construction according to any one of claims 1-9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010338027.7A CN111425600A (en) | 2020-04-26 | 2020-04-26 | Rotary sealing structure and spiral sand-water separator |
| PCT/CN2021/089947 WO2021218922A1 (en) | 2020-04-26 | 2021-04-26 | Rotary sealing structure and spiral sand-water separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010338027.7A CN111425600A (en) | 2020-04-26 | 2020-04-26 | Rotary sealing structure and spiral sand-water separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111425600A true CN111425600A (en) | 2020-07-17 |
Family
ID=71558352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010338027.7A Pending CN111425600A (en) | 2020-04-26 | 2020-04-26 | Rotary sealing structure and spiral sand-water separator |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111425600A (en) |
| WO (1) | WO2021218922A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066233A (en) * | 2020-08-14 | 2020-12-11 | 赵越 | Sand washer device capable of preventing lubricating oil from being injected in an uncomfortable manner and influencing rotation of rolling shaft |
| WO2021218922A1 (en) * | 2020-04-26 | 2021-11-04 | 福建南方路面机械股份有限公司 | Rotary sealing structure and spiral sand-water separator |
| CN113634362A (en) * | 2021-10-19 | 2021-11-12 | 江苏天沃重工科技有限公司 | Building is useless rubbish system sand edulcoration device admittedly |
| CN114033748A (en) * | 2021-11-25 | 2022-02-11 | 安徽莱恩电泵有限公司 | Spent fuel pool cooling pump for nuclear power station |
| CN116576255A (en) * | 2023-07-13 | 2023-08-11 | 江苏洁维生物设备股份有限公司 | Bioreactor (mixing) shaft sealing device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114084330A (en) * | 2021-12-13 | 2022-02-25 | 中国船舶重工集团公司第七0四研究所 | Water-tight box of shaft type oil distributor |
| CN114673729B (en) * | 2022-01-30 | 2023-11-24 | 山东省章丘鼓风机股份有限公司 | Combined labyrinth sealing structure for bearing pedestal |
| CN115208112B (en) * | 2022-07-11 | 2023-10-27 | 苏州巨能发电配套设备有限公司 | Large-scale vertical motor thrust bearing adjusting device and upper casing |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002031148A (en) * | 2000-07-14 | 2002-01-31 | Nsk Ltd | Rolling bearing device |
| US20030047879A1 (en) * | 2001-09-10 | 2003-03-13 | Bowen Willard L. | Rotary sealing device |
| CN206509107U (en) * | 2017-01-16 | 2017-09-22 | 四川磊蒙机械设备有限公司 | A kind of screw sand washer of shaft end waterproof |
| CN207828669U (en) * | 2017-12-26 | 2018-09-07 | 郑州运达造纸设备有限公司 | A kind of vertical pulper drive mechanism |
| CN110259952B (en) * | 2019-07-18 | 2024-02-02 | 福建省闽旋科技股份有限公司 | Rotary dynamic sealing device of centrifugal machine |
| CN212131295U (en) * | 2020-04-26 | 2020-12-11 | 福建南方路面机械股份有限公司 | Rotary sealing structure and spiral sand-water separator |
| CN111425600A (en) * | 2020-04-26 | 2020-07-17 | 福建南方路面机械股份有限公司 | Rotary sealing structure and spiral sand-water separator |
-
2020
- 2020-04-26 CN CN202010338027.7A patent/CN111425600A/en active Pending
-
2021
- 2021-04-26 WO PCT/CN2021/089947 patent/WO2021218922A1/en active Application Filing
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021218922A1 (en) * | 2020-04-26 | 2021-11-04 | 福建南方路面机械股份有限公司 | Rotary sealing structure and spiral sand-water separator |
| CN112066233A (en) * | 2020-08-14 | 2020-12-11 | 赵越 | Sand washer device capable of preventing lubricating oil from being injected in an uncomfortable manner and influencing rotation of rolling shaft |
| CN113634362A (en) * | 2021-10-19 | 2021-11-12 | 江苏天沃重工科技有限公司 | Building is useless rubbish system sand edulcoration device admittedly |
| CN113634362B (en) * | 2021-10-19 | 2021-12-17 | 江苏天沃重工科技有限公司 | Building is useless rubbish system sand edulcoration device admittedly |
| CN114033748A (en) * | 2021-11-25 | 2022-02-11 | 安徽莱恩电泵有限公司 | Spent fuel pool cooling pump for nuclear power station |
| CN116576255A (en) * | 2023-07-13 | 2023-08-11 | 江苏洁维生物设备股份有限公司 | Bioreactor (mixing) shaft sealing device |
| CN116576255B (en) * | 2023-07-13 | 2023-10-03 | 江苏洁维生物设备股份有限公司 | Bioreactor (mixing) shaft sealing device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021218922A1 (en) | 2021-11-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111425600A (en) | Rotary sealing structure and spiral sand-water separator | |
| CN212131295U (en) | Rotary sealing structure and spiral sand-water separator | |
| CN104889425A (en) | High speed spindle box structure | |
| CN210024594U (en) | Normally closed type oil pressure brake device and multi-shaft combined special machine with same | |
| CN104959240A (en) | Horizontal spiral discharging sedimentation centrifuge for energy-efficient proteins | |
| CN102343296A (en) | Grinding roller sealing device for vertical roller mill | |
| CN204672976U (en) | A kind of main spindle box | |
| CN101502888B (en) | Drill bushing structure of numerical control deep-hole drilling machine | |
| EP2580004B1 (en) | Venturi drain for self-pumping bearing rolling mills | |
| CN202507391U (en) | Supporting wheel device and concrete mixing truck | |
| CN204672449U (en) | A kind of energy-efficient albumen special horizontal spiral discharge sedimentation centrifuge | |
| CN201027983Y (en) | Sealing member of roller | |
| CN210450882U (en) | Anti-blocking supporting roller structure | |
| CN218935018U (en) | Novel double-row tapered roller bearing | |
| CN202460736U (en) | Grinding roller sealing device for vertical roller mill | |
| CN114810815A (en) | Improved bearing suitable for heavy-load low-speed working condition | |
| CN216788988U (en) | Novel deep groove ball bearing | |
| CN116398398B (en) | Crankshaft structure assembly of diaphragm compressor | |
| CN213744555U (en) | Positioning bearing structure for Danieli cone box assembled with novel oil distribution ring | |
| CN220634809U (en) | Wear-resisting horizontal centrifuge | |
| CN211589465U (en) | Guide roller spindle bracket structure of tapered roller grinding machine | |
| CN212131644U (en) | Circumferential sealing structure of metal powder inlet and outlet rotary pipeline | |
| CN116044425B (en) | Shaft type triple hob for shield cutter head | |
| CN214787242U (en) | Propulsion frame orifice device | |
| CN211008771U (en) | Steam turbine rotor bearing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |