CN110296217B - Lip seal device for kettle - Google Patents
Lip seal device for kettle Download PDFInfo
- Publication number
- CN110296217B CN110296217B CN201910643752.2A CN201910643752A CN110296217B CN 110296217 B CN110296217 B CN 110296217B CN 201910643752 A CN201910643752 A CN 201910643752A CN 110296217 B CN110296217 B CN 110296217B
- Authority
- CN
- China
- Prior art keywords
- lip
- ring
- shaft sleeve
- wall
- shaped sealing
- 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.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 76
- 238000001816 cooling Methods 0.000 claims abstract description 46
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 41
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 210000004907 gland Anatomy 0.000 claims abstract description 19
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 7
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 7
- 239000003365 glass fiber Substances 0.000 claims description 5
- 210000003000 inclusion body Anatomy 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 6
- 239000012530 fluid Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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
- 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
- F16J15/3208—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings
-
- 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
- F16J15/3216—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip supported in a direction parallel to the surfaces
-
- 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
- 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
- F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
- F16J15/3252—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports
-
- 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
- F16J15/3268—Mounting of sealing rings
- F16J15/3276—Mounting of sealing rings with additional static sealing between the sealing, or its casing or support, and the surface on which it is mounted
-
- 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
- F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The invention discloses a lip seal device for a kettle, which comprises a shaft sleeve, a transmission ring, a culvert body and a gland, wherein the transmission ring and the culvert body are sleeved on the shaft sleeve in parallel, the transmission ring and the culvert body are fixedly connected through a positioning block, a silicon carbide shaft sleeve is sleeved between the transmission ring and the shaft sleeve, a lip seal ring is sleeved between the silicon carbide shaft sleeve and the culvert body, a cooling ring is sleeved between the silicon carbide shaft sleeve and the culvert body, the cooling ring is tightly attached to the lip seal ring, and the gland is connected with the culvert body through a fastener. The rotating shaft is sleeved with the plurality of lip-shaped sealing rings, so that the sealing effect of the device is greatly improved, and the rotating shaft is prevented from being in direct contact with the lip-shaped sealing rings by matching with the silicon carbide shaft sleeve, so that the abrasion between the rotating shaft and the lip-shaped sealing rings is avoided, and the service life of the device is prolonged.
Description
Technical Field
The invention relates to the technical field of sealing elements, in particular to a lip seal device for a kettle.
Background
A mechanical seal is a device for solving the problem of sealing between a rotating shaft and a machine body. The device for preventing fluid leakage is formed by at least one pair of end surfaces perpendicular to the rotating shaft, which are kept in contact and relatively slide under the cooperation of fluid pressure and the elastic force of the compensation mechanism and auxiliary sealing. The mechanical seal for kettles is suitable for sealing stirring shafts of various steel kettles, enamel kettles and glass-lined kettles and similar vertical rotating shafts, the sealing requirement is high, the shaft needs to bear larger radial force, the mechanical seal with built-in bearings is selected, such as an oil seal, the oil seal is an oil sealing element for sealing the rotating shaft in mechanical equipment, and the cavity is basically static, so the oil seal is also called a rotating shaft lip seal ring, the basic structure of the lip seal generally comprises three parts, namely a sealing body, a framework, a hooping spring and the like, and the medium is sealed by virtue of interference fit between the lip part of the sealing body and the paired rotating shaft. Although lip seal effect is good, when operating pressure is higher, make the oil blanket waist excessively warp easily, cause lip and axle area of contact to increase, cause frictional heat to aggravate and lead to sealed inefficacy, in the in-service use, often because of air side leaks, suspension particles in fluid adhesion air, along with the high-speed rotation of axle, the particulate matter is brought into the sealing washer to wearing and tearing the sealing washer, consequently how to avoid sealing washer or axis of rotation wearing and tearing become a big problem of sealing device.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the utility model provides a cauldron is with lip seal device establishes a plurality of lip seal circle on the axis of rotation cover, improves the device sealed effect by a wide margin, cooperates the carborundum axle sleeve, avoids axis of rotation and lip seal circle direct contact to avoided wearing and tearing between the two, improved device life.
The technical scheme adopted by the invention is as follows: the utility model provides a lip seal device for cauldron, it includes axle sleeve, driving ring, culvert body and gland, driving ring and culvert body are listed as the cover and are located on the axle sleeve, it is fixed through locating piece connection between driving ring and the culvert body, the cover is equipped with a carborundum axle sleeve between driving ring and the axle sleeve, the cover is equipped with the lip seal circle between carborundum axle sleeve and the culvert body, still the cover is equipped with the cooling ring between carborundum axle sleeve and the culvert body, the cooling ring is hugged closely in the lip seal circle, the gland passes through the fastener and is connected with the culvert body.
Preferably, the lip-shaped sealing rings are made of a mixture of PTFE and glass fibers, the number of the lip-shaped sealing rings is more than two, the lip-shaped sealing rings are sleeved on the outer wall of the silicon carbide shaft sleeve in a parallel mode, the cooling rings are arranged between every two lip-shaped sealing rings, the lip-shaped sealing rings are sleeved in parallel, the sealing effect is greatly improved, the silicon carbide shaft sleeve prevents the lip-shaped sealing rings from directly rubbing against the shaft sleeve, and the friction between the lip-shaped sealing rings and the silicon carbide shaft sleeve is reduced due to the small friction coefficient of the silicon carbide shaft sleeve.
Preferably, the lip seal ring comprises a framework, a compression spring and a lip body, wherein the section of the framework is L-shaped, the two outer wall surfaces of the framework are respectively clung to the inner wall of the culvert body and the side wall of the cooling ring, the lip body extends out of the framework, one surface of the lip body is clung to the outer wall of the silicon carbide shaft sleeve, a first containing groove is formed in the other surface of the lip body, the compression spring is arranged in the first containing groove, the framework acts like a reinforcing steel bar in a concrete member, the reinforcing effect is achieved, the shape and the tension of an oil seal can be kept, the lip body serves as a flexible elastomer, the stable sealing effect can be still maintained under the influence of the vibration of machinery and the pressure fluctuation of sealing fluid, the effect of keeping the lip body and the outer wall surface of the silicon carbide shaft sleeve in a stable contact state can be achieved, and the compression force of the lip body to the silicon carbide shaft sleeve can be improved by the compression spring, and the effect of keeping the compression force can be achieved.
Preferably, the contact surfaces of the cooling ring, the inclusion body and the silicon carbide shaft sleeve are all provided with first grooves, the bottoms of the first grooves are provided with through holes, the through holes penetrate through the bottoms of the two first grooves, and the width dimension of the cooling ring is larger than the thickness dimension of the cooling ring, so that the cooling of the cooling ring body is accelerated.
Preferably, the center of the cooling ring is taken as a center point, and the plurality of through holes are equidistantly distributed on the bottom surface of the groove of the cooling ring in an annular array, so that the cooling time of the ring body of the cooling ring is shortened.
Preferably, a second groove is formed in the peripheral wall of the transmission ring, one end of the positioning block is embedded in the second groove, the other end of the positioning block is connected to the end face of the culvert body through a fastener, the positioning block is located between the transmission ring and the end face of the culvert body, and one end of the positioning block is fixed through the fastener; the end face of one end of the transmission ring is propped against the positioning block, the inner wall of the other end of the transmission ring extends out of a circle of bulge towards the center of the shaft sleeve, one side of the bulge is propped against the end face of the shaft sleeve, so that the shaft sleeve is clamped between the transmission ring and the silicon carbide shaft sleeve, namely, the transmission ring is fixed through the positioning block, and the bulge on the transmission ring is used for fixing the shaft sleeve.
Preferably, the inner wall and the outer wall of the shaft sleeve are respectively provided with more than two second containing grooves, O-shaped sealing rings are arranged in the second containing grooves, protrusions are arranged on the edges of the opposite sides of every two second containing grooves on the inner wall of the shaft sleeve, the O-shaped sealing rings play roles in damping and sealing, and the protrusions on the inner wall of the shaft sleeve are used for reducing friction between the shaft sleeve and the rotating shaft.
Preferably, the shaft sleeve is connected with the transmission ring through a fastener, so that the connection rigidity is high, the transmission ring has certain shock resistance, and the transmission ring is detachable.
Preferably, the end face of the gland contacted with the culvert body is provided with a third containing groove, an O-shaped sealing ring is arranged in the third containing groove, a sinking groove or a chamfer is arranged at the contact position of the side outer wall of the gland and the side outer wall of the culvert body, namely, the joint of the side outer wall of the gland and the side outer wall of the culvert body is positioned at the bottom of the sinking groove or the chamfer, because the joint possibly has uneven phenomena such as burrs and dislocation after the gland is matched with the culvert body, the sinking groove or the chamfer conceals the joint, and the whole flatness and continuity after the gland is matched with the culvert body are ensured.
Preferably, a fourth containing groove is formed in the inner wall of the culvert body, and a clamping ring is arranged in the fourth containing groove and used for limiting and fixing the lip-shaped sealing ring.
In the prior art, the reasons for the failure of the sealing ring are many, wherein the most main reasons are leakage caused by friction loss between the sealing ring and the rotating shaft, and the sealing ring is fragile in material, particularly in an air sealing environment, the sealing ring is easy to wear and even break due to insufficient strength; in addition, a silicon carbide shaft sleeve is arranged between the lip-shaped sealing ring and the shaft sleeve, and silicon carbide is stable in chemical property, high in heat conductivity coefficient, small in thermal expansion coefficient, good in wear resistance, and capable of resisting oxidation at high temperature, and the friction coefficient is very small, the lip-shaped sealing ring is made of a mixture of PTFE and glass fibers, and the lip-shaped sealing ring is in contact friction with the silicon carbide shaft sleeve, so that friction between the lip-shaped sealing ring and the shaft sleeve is avoided, and the lip-shaped sealing ring is particularly suitable for sealing devices with airtight sealing or dry friction working conditions, so that the service life and the working reliability of the sealing device are improved.
Drawings
Figure 1 is an isometric view of the structure of the present invention.
Fig. 2 is a top view of the structure of the present invention.
Fig. 3 is a side elevational view, in full section, of fig. 2.
Fig. 4 is an enlarged view at B in fig. 3.
Fig. 5 is a side view of the structure of the present invention.
FIG. 6 is a schematic view of a cooling ring mechanism of the present invention.
Wherein, 1, a shaft sleeve, 2, a driving ring, 3, a body, 4, a gland, 5, a positioning block, 6, a silicon carbide shaft sleeve, 7, a lip-shaped sealing ring, 8, a cooling ring, 9, a framework, 10, a compression spring, 11 and a lip body, 12, a first container 13, a first groove 14, a through hole 15, a second groove 16, a second container 17, a bulge 18, a third container 19, a fourth container 20, a snap ring 21 and a bulge.
Detailed Description
The invention is further described below with reference to the drawings and the detailed description.
As shown in fig. 1 and 2, the device comprises a shaft sleeve 1, a driving ring 2, a culvert body 3 and a gland 4, wherein the driving ring 2 and the culvert body 3 are sleeved on the shaft sleeve 1 in parallel, the driving ring 2 and the culvert body 3 are fixedly connected through a positioning block 5, as shown in fig. 3, a silicon carbide shaft sleeve 6 is sleeved between the driving ring 2 and the shaft sleeve 1, a lip-shaped sealing ring 7 is sleeved between the silicon carbide shaft sleeve 6 and the culvert body 3, a cooling ring 8 is sleeved between the silicon carbide shaft sleeve 6 and the culvert body 3, the cooling ring 8 is tightly attached to the lip-shaped sealing ring 7, and the gland 4 is connected with the culvert body 3 through a fastener. The lip seal ring 7 is made of PTFE mixed glass fiber composite material, PTFE has the characteristics of low friction coefficient and excellent wear resistance, is a self-lubricating material, but has the defects of large linear expansion coefficient, poor corrosion resistance, low hardness, poor thermal conductivity and the like, and in order to overcome the defects of PTFE, glass fibers are specially added, so that the wear resistance of the PTFE is enhanced, and meanwhile, the lip seal ring has good chemical resistance and higher mechanical property.
In this embodiment, as shown in fig. 4, the number of the lip-shaped sealing rings 7 is two, and the lip-shaped sealing rings 7 are sleeved on the outer wall of the silicon carbide shaft sleeve 6 in a parallel arrangement mode and face the same direction, and the cooling ring 8 is positioned between every two lip-shaped sealing rings 7 and abuts against the lip-shaped sealing rings 7 to play a role of cooling. The lip-shaped sealing ring 7 comprises a framework 9, a compression spring 10 and a lip body 11, wherein the cross section of the framework is L-shaped, the two outer wall surfaces of the framework are respectively clung to the inner wall of the culvert body 3 and the side wall of the cooling ring 8, the lip body 11 extends out from the framework 9, one surface of the lip body 11 props against the outer wall of the silicon carbide shaft sleeve 6, a first accommodating groove 12 is formed in the other surface of the lip body 11, and the compression spring 10 is arranged in the first accommodating groove 12 and used for compressing the lip body 11.
The contact surfaces of the cooling ring 8, the culvert body 3 and the silicon carbide shaft sleeve 6 are respectively provided with a first groove 13, so that the contact surfaces among the cooling ring 8, the culvert body 3 and the silicon carbide shaft sleeve 6 are minimized, the cooling effect of the cooling ring 8, the culvert body 3 and the silicon carbide shaft sleeve 6 is optimized, as shown in fig. 6, the bottom surfaces of the first grooves 13 are provided with through holes 14, the through holes 14 penetrate through the bottom surfaces of the two first grooves 13, the circle center of the cooling ring 8 is taken as a center point, and a plurality of through holes 14 are distributed on the bottom surfaces of the first grooves 13 of the cooling ring 8 in an annular array at equal intervals, so that the cooling of the ring body of the cooling ring 8 is accelerated.
The contact end of the cooling ring 8 with the inclusion body 3 and the silicon carbide shaft sleeve 6 is defined as thickness, the contact end of the cooling ring 8 with the lip-shaped sealing ring 7 is width, the width dimension of the cooling ring 8 is larger than the thickness dimension, as shown in fig. 4, namely, the contact surface of the lip-shaped sealing ring 7 with the inclusion body 3 and the silicon carbide shaft sleeve 6 is small, and the contact surface of the cooling ring 8 is large, so that the contact area of the lip-shaped sealing ring 7 with the cooling ring 8 is maximized, the contact area of the lip-shaped sealing ring 7 with the inclusion body 3 and the silicon carbide shaft sleeve 6 is minimized, cooling of the lip-shaped sealing ring 7 is accelerated, fixation between the lip-shaped sealing rings 7 is reinforced, and loosening of the lip-shaped sealing ring 7 is prevented, so that shock resistance and tightness of the lip-shaped sealing ring 7 are improved, the structure is compact and firm, and abrasion between the cooling ring 8 and the silicon carbide shaft sleeve 6 is reduced as much as possible.
Be equipped with second recess 15 on the peripheral wall of drive ring 2, locating piece 5 one end gomphosis is in second recess 15, need not the fastener fixed, the other end passes through the fastener to be connected in the body 3 terminal surface, locating piece 5 is located between drive ring 2 and the body 3 terminal surface, easy loading and unloading, simple structure is stable, drive ring 2 one end terminal surface supports in locating piece 5, the other end inner wall extends round arch 21 towards axle sleeve 1 center department, protruding 21 one side supports in axle sleeve 1 terminal surface for axle sleeve 1 block is between drive ring 2 and carborundum axle sleeve 6, effectively prevents axle sleeve 1 and breaks away from along with the high-speed rotatory of center pivot, make this device compact structure, it is firm.
More than two second holding grooves 16 are formed in the inner wall and the outer wall of the shaft sleeve 1, O-shaped sealing rings are arranged in the second holding grooves 16, protrusions 17 are arranged on the edges of opposite sides of the two second holding grooves 16 on the inner wall of the shaft sleeve 1, the protrusions 17 directly support against the rotating shaft, when the rotating shaft rotates at high speed, the rotating shaft directly rubs against the protrusions 17, the large-area direct contact and friction between the inner wall of the shaft sleeve 1 and the rotating shaft are avoided, friction loss is reduced, impurity particles are prevented from entering between the shaft sleeve 1 and the rotating shaft, heat generation is increased, the protrusions 17 are designed to avoid the situation, gaps are formed between the inner wall of the shaft sleeve 1 and the rotating shaft due to the protrusions 17, and impurity particles or lubricating oil and the like can be stored in the gaps, but cannot cause relative friction with the rotating shaft.
The end face of the gland 4 contacted with the culvert body 3 is provided with a third accommodating groove 18, an O-shaped sealing ring is arranged in the third accommodating groove 18, and a sinking groove or a chamfer angle is arranged at the contact position of the side outer wall of the gland 4 and the side outer wall of the culvert body 3, as shown in fig. 5, in the embodiment, the sinking groove is formed, namely, the joint position of the side outer wall of the gland 4 and the side outer wall of the culvert body 3 is positioned in the sinking groove. The inner wall of the culvert body 3 is provided with a fourth containing groove 19, a clamping ring 20 is arranged in the fourth containing groove 19 and used for limiting and fixing the lip-shaped sealing ring 7, and the width of the clamping ring 20 is smaller, so that the contact surface between the clamping ring 20 and the lip-shaped sealing ring 7 is small, and heat dissipation of the lip-shaped sealing ring 7 is not hindered.
The foregoing description of the preferred embodiments of the present invention is provided for illustration and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to be changed, and all changes made within the scope of the invention as independently claimed are within the scope of the invention.
Claims (8)
1. A lip seal device for a kettle, which is characterized in that: the device comprises a shaft sleeve (1), a transmission ring (2), a culvert body (3) and a gland (4), wherein the transmission ring (2) and the culvert body (3) are sleeved on the shaft sleeve (1) in parallel, the transmission ring (2) and the culvert body (3) are fixedly connected through a positioning block (5), a silicon carbide shaft sleeve (6) is sleeved between the transmission ring (2) and the shaft sleeve (1), a lip-shaped sealing ring (7) is sleeved between the silicon carbide shaft sleeve (6) and the culvert body (3), a cooling ring (8) is sleeved between the silicon carbide shaft sleeve (6) and the culvert body (3), the cooling ring (8) is tightly attached to the lip-shaped sealing ring (7), and the gland (4) is connected with the culvert body (3) through a fastener; the lip-shaped sealing rings (7) are made of a mixture of PTFE and glass fibers, the number of the lip-shaped sealing rings is more than two, the lip-shaped sealing rings are sleeved on the outer wall of the silicon carbide shaft sleeve (6) in a parallel mode, and the cooling rings (8) are arranged between every two lip-shaped sealing rings (7); the cooling ring (8) is provided with first grooves (13) on contact surfaces of the cooling ring (8) with the inclusion body (3) and the silicon carbide shaft sleeve (6), through holes (14) are formed in the bottom surfaces of the first grooves (13), the through holes (14) penetrate through the bottom surfaces of the two first grooves (13), and the width dimension of the cooling ring (8) is larger than the thickness dimension.
2. The lip seal for kettles of claim 1, wherein: the lip-shaped sealing ring (7) comprises a framework (9), a compression spring (10) and a lip body (11), wherein the section of the framework (9) is L-shaped, two outer wall surfaces of the framework are respectively clung to the inner wall of the culvert body (3) and the side wall of the cooling ring (8), the lip body (11) extends out of the framework (9), one surface of the lip body (11) props against the outer wall of the silicon carbide shaft sleeve (6), a first containing groove (12) is formed in the other surface of the lip body, and the compression spring (10) is arranged in the first containing groove (12).
3. The lip seal for kettles of claim 1, wherein: the center of the cooling ring (8) is taken as a center point, and a plurality of through holes (14) are equidistantly distributed on the bottom surface of the first groove (13) of the cooling ring (8) in an annular array.
4. The lip seal for kettles of claim 1, wherein: be equipped with second recess (15) on driving ring (2) the peripheral wall, locating piece (5) one end gomphosis is in second recess (15), and the other end passes through the fastener to be connected in culvert body (3) terminal surface, locating piece (5) are located between driving ring (2) and the culvert body (3) terminal surface, driving ring (2) one end terminal surface supports in locating piece (5), and other end inner wall extends round arch (21) towards axle sleeve (1) center department, arch (21) one side supports in axle sleeve (1) terminal surface for axle sleeve (1) block is between driving ring (2) and carborundum axle sleeve (6).
5. The lip seal for kettles of claim 1, wherein: more than two second containing grooves (16) are formed in the inner wall and the outer wall of the shaft sleeve (1), O-shaped sealing rings are arranged in the second containing grooves (16), and protrusions (17) are arranged on the edges of opposite sides of every two second containing grooves (16) on the inner wall of the shaft sleeve (1).
6. A lip seal for kettles according to claim 4 or 5, wherein: the shaft sleeve (1) is connected with the transmission ring (2) through a fastener.
7. The lip seal for kettles of claim 1, wherein: the gland (4) is equipped with third appearance groove (18) on the terminal surface of body (3) contact, be equipped with O shape sealing washer in third appearance groove (18), gland (4) side outer wall and body (3) side outer wall contact department is equipped with heavy groove or chamfer.
8. A lip seal apparatus for kettles according to claim 1 or 2, wherein: a fourth containing groove (19) is formed in the inner wall of the culvert body (3), and a clamping ring (20) is arranged in the fourth containing groove (19) and used for limiting and fixing the lip-shaped sealing ring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910643752.2A CN110296217B (en) | 2019-07-17 | 2019-07-17 | Lip seal device for kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910643752.2A CN110296217B (en) | 2019-07-17 | 2019-07-17 | Lip seal device for kettle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110296217A CN110296217A (en) | 2019-10-01 |
| CN110296217B true CN110296217B (en) | 2024-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910643752.2A Active CN110296217B (en) | 2019-07-17 | 2019-07-17 | Lip seal device for kettle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110296217B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110789559A (en) * | 2019-11-29 | 2020-02-14 | 大连重矿设备制造有限公司 | Special bogie of coke quenching car butterfly spring couple formula |
| CN111579337B (en) * | 2020-06-28 | 2022-06-21 | 西南石油大学 | High-temperature ultrahigh-pressure oil-gas fluid sample preparation device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08166065A (en) * | 1994-12-14 | 1996-06-25 | Hitachi Ltd | Shaft sealing device |
| CN202001359U (en) * | 2011-03-01 | 2011-10-05 | 宁波伏尔肯机械密封件制造有限公司 | Pump silicon carbide mechanical sealing device on ship |
| CN202418572U (en) * | 2012-01-06 | 2012-09-05 | 南京金日轻工科技发展有限公司 | Radial mechanical seal |
| CN103090008A (en) * | 2013-01-25 | 2013-05-08 | 徐利阳 | Rotary seal lip type seal ring assembly for rotating shaft |
| CN106369167A (en) * | 2016-11-10 | 2017-02-01 | 丹东克隆集团有限责任公司 | Integrated external spring compensation type mechanical sealing device |
| CN107504183A (en) * | 2017-09-12 | 2017-12-22 | 江苏胜开尔工业技术有限公司 | A kind of kettle stirring dry-type mechanical sealing device |
| CN208457206U (en) * | 2018-07-02 | 2019-02-01 | 四川重诚密封件有限公司 | A kind of spliced axle sleeve mechanical seal |
| CN210949869U (en) * | 2019-07-17 | 2020-07-07 | 宁波方力密封件有限公司 | Lip sealing device for kettle |
-
2019
- 2019-07-17 CN CN201910643752.2A patent/CN110296217B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08166065A (en) * | 1994-12-14 | 1996-06-25 | Hitachi Ltd | Shaft sealing device |
| CN202001359U (en) * | 2011-03-01 | 2011-10-05 | 宁波伏尔肯机械密封件制造有限公司 | Pump silicon carbide mechanical sealing device on ship |
| CN202418572U (en) * | 2012-01-06 | 2012-09-05 | 南京金日轻工科技发展有限公司 | Radial mechanical seal |
| CN103090008A (en) * | 2013-01-25 | 2013-05-08 | 徐利阳 | Rotary seal lip type seal ring assembly for rotating shaft |
| CN106369167A (en) * | 2016-11-10 | 2017-02-01 | 丹东克隆集团有限责任公司 | Integrated external spring compensation type mechanical sealing device |
| CN107504183A (en) * | 2017-09-12 | 2017-12-22 | 江苏胜开尔工业技术有限公司 | A kind of kettle stirring dry-type mechanical sealing device |
| CN208457206U (en) * | 2018-07-02 | 2019-02-01 | 四川重诚密封件有限公司 | A kind of spliced axle sleeve mechanical seal |
| CN210949869U (en) * | 2019-07-17 | 2020-07-07 | 宁波方力密封件有限公司 | Lip sealing device for kettle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110296217A (en) | 2019-10-01 |
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