CN201686295U - Self-compensating sealing device - Google Patents
Self-compensating sealing device Download PDFInfo
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- CN201686295U CN201686295U CN2010202153403U CN201020215340U CN201686295U CN 201686295 U CN201686295 U CN 201686295U CN 2010202153403 U CN2010202153403 U CN 2010202153403U CN 201020215340 U CN201020215340 U CN 201020215340U CN 201686295 U CN201686295 U CN 201686295U
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Abstract
A self-compensating sealing device is applicable to rotating devices in industrial and mining enterprises and particularly applicable to carrier rollers and the like. The self-compensating sealing device comprises a sealing ring with a C-shaped groove with a V-shaped friction surface; the C-shaped groove is arranged in the circumferential direction of the sealing ring; an O-shaped rubber expansion ring is mounted inside the C-shaped groove; and the V-shaped friction surface is arranged at the position of the bore diameter of the sealing ring. An abrasion-resistant plastic sleeve is mounted inside the bore diameter of the sealing ring with the C-shaped groove with the V-shaped friction surface and fixedly sleeved on a shaft; and the sealing ring with the C-shaped groove with the V-shaped friction surface is connected with the abrasion-resistant plastic sleeve in a rotating friction manner. Besides, the sealing ring with C-shaped groove with the V-shaped friction surface is made of ultrahigh molecular weight polyethylene materials lower than 3000 thousands, and the abrasion-resistant plastic sleeve is made of ultrahigh molecular weight polyethylene materials higher than 5000 thousands. The self-compensating sealing device has the advantages of abrasion resistance, self-compensating, corrosion resistance, fine tightness, impact resistance, long-period abrasion resistance and long service life.
Description
Technical field
The utility model relates to a kind of sealing arrangement, relates in particular to a kind of self-compensation sealing device, is applicable to the slewing arrangement of industrial and mining enterprises, is particularly useful for carrying roller etc.
Background technology
Carrying roller has in industrial and mining enterprises on the equipment of belt transportation and uses in a large number, and the environment for use condition is more abominable, often in operation process with powder, dirt, moist aqueous vapor and corrosive materials, and the sealed bearings overwhelming majority adopts ferrous materials.In dark tunnel, check, maintenance is inconvenient, the maintainer is many, not withstanding corrosion and quick abrasion, service life is short, checking efficiency is low.In addition, the steel antifriction-bearing box that adopts in carrying roller need regularly maintain, and under the bad situation of sealing, the steel bearing can greatly reduce because of the infiltration of working environment humidity, dust, corrosive deposit its service life especially.Though part solves and improved some defectives in some patented technology, it is short and check whether the maintenance carrying roller damages inefficient problem fundamentally to solve service life of carrying roller.The overwhelming majority just adopts different hermetically-sealed constructions and material, to the running roller supporting tube and metal shaft between seal, because the corrosion stability of metal shaft own is also bad when these structure and materials and iron sealing, self lubricity is poor, enough self compensation sealings can not be provided behind the ring wear, still can produce infiltration after the time is long, cause bearing fault, having a strong impact on the normal operation and the transport efficiency of belt conveyor, maintenance, supervisory personnel's quantity also increases greatly.
At present some carrying roller adopts sealed nylon circle, because of its coefficient of expansion relation, is heated easily sealing wear, when catching a cold, produces the gap, causes leaking, and sealing effectiveness is poor; Some adopts labyrinth seal to prevent dust, can not waterproof, and often the water of infiltration damages the bearing corrosion in actual use.
Summary of the invention
The purpose of this utility model provides the self-compensation sealing device of a kind of wear-resistant self compensation, withstanding corrosion, good airproof performance, shock resistance, anti-long term wear, long service life.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of self-compensation sealing device comprises: seal ring is characterized in that: seal ring is the seal ring of C troughed belt V-type friction face, its seal ring circumferentially have a C type groove, the place, aperture of seal ring has the V-type friction face.
According to described self-compensation sealing device, it is characterized in that: O type rubber packing is housed in the C type groove of the seal ring of described C troughed belt V-type friction face.
According to described self-compensation sealing device, it is characterized in that: in the aperture of the seal ring of C troughed belt V-type friction face the wear-resistant plastic cover is installed, the wear-resistant plastic cover is fixedly set on the axle, and the seal ring of C troughed belt V-type friction face is connected with wear-resistant plastic cover pivoting friction.
According to described self-compensation sealing device, it is characterized in that: the seal ring of described C troughed belt V-type friction face is made by polythene material; Described wear-resistant plastic cover is made by polythene material.
According to described self-compensation sealing device, it is characterized in that: the outside of the seal ring of C troughed belt V-type friction face and wear-resistant plastic cover is connected with the sealing arrangement shell.
According to described self-compensation sealing device, it is characterized in that: a side of seal ring and wear-resistant plastic cover is equipped with bearing, and seal ring, wear-resistant plastic cover and bearing are positioned at the sealing arrangement shell.
According to described self-compensation sealing device, it is characterized in that: self-compensation sealing device is installed in the end in the roller supporting tube.
The poor sealing performance that this patent exists at the belt transporter carrying roller, service life is short, the inspection maintenance workload is big, inefficient defective, particularly under coal mine under the harsies environment such as high gas and coal dust, conveyer belt moves in the dark and is difficult for finding out-of-run carrying roller frictional heat, even generation spark and belt deviation, potential safety hazard is big, comprehensive above-mentioned shortcoming, design a kind of a kind of self-compensation sealing device that adopts hightech material and superior structural, the wear-resistant plastic cover in the sealing arrangement shell, compound seal coil assembly and bearing constitute waterproof, dustproof, the anticorrosion antiwear structure.The utility model can be realized wear-resistant self compensation, withstanding corrosion, good airproof performance, shock resistance, anti-long term wear, long service life, non-maintaining, reduce and check service personnel quantity greatly.The utlity model has that friction coefficient is little, in light weight, waterproof and dustproof, advantage that serviceability is strong, be applicable to industrial and mineral environment such as colliery, metallurgy, grain processing, salt manufacturing, cement, port and pier.
Description of drawings
Fig. 1 is the structural representation of the seal ring of C troughed belt V-type friction face in the utility model.
Fig. 2 is equipped with structural representation behind the O type rubber packing for the utility model.
Fig. 3 is the front view of the O type rubber packing in the utility model.
Fig. 4 is equipped with structural representation behind wear-resistant plastic cover, bearing, the sealing arrangement shell for the utility model.
In the accompanying drawing: 1, the seal ring of C troughed belt V-type friction face; 2, C type groove; 3, V-type friction face; 4, O type rubber packing; 5, wear-resistant plastic cover; 6, axle; 7, bearing; 8, sealing arrangement shell; 9, roller supporting tube.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
The utility model self-compensation sealing device comprises as shown in Figure 1: seal ring is characterized in that: seal ring is the seal ring 1 of C troughed belt V-type friction face, its seal ring circumferentially have a C type groove 2, the place, aperture of seal ring has V-type friction face 3.Seal ring C type groove structure self has elasticity, can play auto-compensation.Seal ring V-type friction face 3 can play the relative friction forces that reduces with wear-resistant plastic cover 5, when the V-type friction face rubs with the wear-resistant plastic cover, by V-type friction face elastic deformation to increase its sealing effectiveness and life-span.
As shown in Figure 2, rubber-like O type rubber packing 4 is housed in the C type groove 2 of the seal ring 1 of C troughed belt V-type friction face.O type rubber packing outside dimension is greater than the size of C type groove internal diameter, and the compression of O type rubber packing is packed in the C type groove, the sealing property that the seal ring that keeps compensation C troughed belt V-type friction face also and wear-resistant plastic overlap, and life-saving.
As shown in Figure 4, wear-resistant plastic cover 5 is installed in the aperture of the seal ring 1 of C troughed belt V-type friction face, wear-resistant plastic cover 5 is fixedly set on the axle 6, and the seal ring 1 of C troughed belt V-type friction face overlaps 5 pivoting frictions with wear-resistant plastic and is connected.
The seal ring 1 of C troughed belt V-type friction face is by being lower than 3,000,000 following superhigh molecular weight polyethylene materials be made (about 2,000,000 mol wts) in the utility model.Wear-resistant plastic cover 5 is by 5,000,000 above superhigh molecular weight polyethylene materials be made (preferred 5,000,000 mol wts).The mol wt of seal ring 1 superhigh molecular weight polyethylene material of C troughed belt V-type friction face is lower than the mol wt that wear-resistant plastic overlaps 5 superhigh molecular weight polyethylene materials, and resistance to abrasion is good.Wherein the friction coefficient of wear-resistant plastic cover 5 is 0.05～0.1, the lubricity excellence.
The seal ring of the C troughed belt V-type friction face at roller carrier shaft two ends and rubber packing match and have wearing and tearing by self elastic compensating sealing effectiveness, can strengthen the compensate for wear amount by the C type groove structure, life-saving greatly, and the rubber packing of installing in the C groove, can in the long-term use process, keep the pressure of sealing place and the compensation rate of loss due to friction.The seal ring of C troughed belt V-type friction face and the rubber packing matches and wear-resistant plastic cover between during pivoting friction, can guarantee the carrying roller cylinder surface in using wear-out life, sealing effectiveness can not reduce.
As shown in Figure 4, the outside of the seal ring 1 of C troughed belt V-type friction face and wear-resistant plastic cover 5 is connected with sealing arrangement shell 8.One side of seal ring 1 and wear-resistant plastic cover 5 is equipped with bearing 7, and seal ring 1, wear-resistant plastic cover 5 and bearing 7 are positioned at sealing arrangement shell 8.The inner face flush fit of the cylindrical of seal ring 1 and sealing arrangement shell 8.Self-compensation sealing device is installed in the end in the roller supporting tube 9.
The utility model principle of design:
The materials processing that is to use super high molecular weight (about about 2,000,000 mol wts) that the utility model adopts the sealing of bearing forms the structure of C troughed belt V-type friction face.Self elasticity according to excellent wear, self lubricity and the C groove structure of super high molecular weight, and inner O type rubber packing at C groove place suit, make sealing place can keep sealing effectiveness over a long time, also promptly utilize the resistance to abrasion of superelevation and self lubricity to reduce its abrasion loss and prolonged service life greatly.Utilize O type rubber packing to keep the sealing load of sealing place, and C groove V-type friction face not with resistance to abrasion and the general metal shaft direct friction of self lubricity, and what cooperate with its rotary seal is the wear-resistant plastic cover that is made by super high molecular weight (more than 5,000,000 mol wts).It is good that super high molecular weight has a resistance to abrasion, and higher 10～50 times than metal, self-lubricating property is very good.0.05～0.1 dynamic friction factor is 1/2 of PA66 and POM under the condition of water lubricating, is only second to the best polytetrafluoroethylene E (PTFE) of self lubricity under unlubricated condition.When it is worked with slip or rotation situation, also better than steel and brass interpolation lubricant.Be described as the very desirable friction material of cost-performance in tribological field.Good chemical resistance, except that acid with strong oxidizing property, almost any organic solvent between 20 ℃～80 ℃ does not all have physical property to ultra-high molecular weight polyethylene can be changed, also has its excellent impact energy absorptivity and good low-temperature resistance, in liquid oxygen (196 ℃) and can keep excellent strength under shock between 80 ℃, viscosity UHWM-PE adsorption power is very not faint, can reduce dust bonding around it.Hydrophobic nature UHWM-PE hygroscopic character is very low, is generally less than 0.01%, is 1% of PA66.Can be in wet environment because of moisture absorption generation change in size, also have the light and good fatigue durability of its lower density, well like this prevented entering of dust and water, and bearing oil can not reveal yet, guaranteed the service life of bearing.
Wear-resistant plastic cover in the utility model is that employing UHWM-PE (super high molecular weight) also is to have utilized its excellent performance, and the special performance higher 10～50 times than steel resistance to abrasion prolongs its surperficial resistance to abrasion greatly.
The wear-resistant plastic cover closely cooperates with axle in the utility model, the seal ring of C troughed belt V-type friction face and the relative rotation fitted seal of wear-resistant plastic cover, O type rubber packing are installed in the effect of playing compensation and keeping sealing place pressure after the inherent wearing and tearing of seal ring of C troughed belt V-type friction face.Bearing fixing is spacing in the place, bearing rim of the mouth and the sealing arrangement shell that all coexists.
During the utility model used, the belt running drove the carrying roller running, and the seal ring of C troughed belt V-type friction face includes O type rubber packing by bearing and axis rotation.O type rubber packing cooperates and the wear-resistant plastic cover is done the spin friction campaign by adding in the seal ring of C type band V-type friction face, and anti-sealing, dust etc. may cause the material of bearing failure to enter, sealing function.
Embodiment recited above is described preferred implementation of the present utility model; be not that design of the present utility model and protection domain are limited; under the prerequisite that does not break away from the utility model design concept; common engineering staff make the technical solution of the utility model in this area various modification and improvement all should fall into protection domain of the present utility model.
Claims (7)
1. self-compensation sealing device, comprising: seal ring is characterized in that: seal ring is the seal ring (1) of C troughed belt V-type friction face, its seal ring circumferentially have a C type groove (2), the place, aperture of seal ring has V-type friction face (3).
2. self-compensation sealing device according to claim 1 is characterized in that: in the C type groove (2) of the seal ring (1) of described C troughed belt V-type friction face O type rubber packing (4) is housed.
3. self-compensation sealing device according to claim 1 and 2, it is characterized in that: in the aperture of the seal ring (1) of C troughed belt V-type friction face wear-resistant plastic cover (5) is installed, wear-resistant plastic cover (5) is fixedly set on the axle (6), and the seal ring (1) of C troughed belt V-type friction face is connected with wear-resistant plastic cover (5) pivoting friction.
4. self-compensation sealing device according to claim 3 is characterized in that: the seal ring (1) of described C troughed belt V-type friction face is made by polythene material; Described wear-resistant plastic cover (3) is made by polythene material.
5. self-compensation sealing device according to claim 4 is characterized in that: the seal ring (1) of C troughed belt V-type friction face and the outside of wear-resistant plastic cover (5) are connected with sealing arrangement shell (8).
6. self-compensation sealing device according to claim 5 is characterized in that: a side of seal ring (1) and wear-resistant plastic cover (5) is equipped with bearing (7), and seal ring (1), wear-resistant plastic cover (5) and bearing (7) are positioned at sealing arrangement shell (8).
7. self-compensation sealing device according to claim 3 is characterized in that: self-compensation sealing device is installed in the end in the roller supporting tube (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202153403U CN201686295U (en) | 2010-05-29 | 2010-05-29 | Self-compensating sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202153403U CN201686295U (en) | 2010-05-29 | 2010-05-29 | Self-compensating sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201686295U true CN201686295U (en) | 2010-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202153403U Expired - Fee Related CN201686295U (en) | 2010-05-29 | 2010-05-29 | Self-compensating sealing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101863372A (en) * | 2010-05-29 | 2010-10-20 | 刘明 | Self-compensation sealing device |
-
2010
- 2010-05-29 CN CN2010202153403U patent/CN201686295U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101863372A (en) * | 2010-05-29 | 2010-10-20 | 刘明 | Self-compensation sealing device |
| CN101863372B (en) * | 2010-05-29 | 2014-10-29 | 山东太极龙塑胶科技有限公司 | Self-compensation sealing device |
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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: 20101229 Termination date: 20160529 |