CN2866413Y - Screw conveyor bearing sealing device - Google Patents
Screw conveyor bearing sealing device Download PDFInfo
- Publication number
- CN2866413Y CN2866413Y CN 200520134171 CN200520134171U CN2866413Y CN 2866413 Y CN2866413 Y CN 2866413Y CN 200520134171 CN200520134171 CN 200520134171 CN 200520134171 U CN200520134171 U CN 200520134171U CN 2866413 Y CN2866413 Y CN 2866413Y
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- bearing
- chamber
- bearing body
- axle
- flywheel
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Abstract
The utility model relates to a new style spiral conveyer bearing seal equipment. It is characterized in that three groove-shaped chambers -oil seal chamber, junction chamber and airproof chamber- are distributed in turn from outward inside the bearing body inner hole at the both sides of the bear. In the oil seal chamber is set an oil feeding nipple, on the opposite neck journals in the junction chamber is set an O-shaped seal ring, in the airproof chamber is set an air-compressing interface, inside the inner holes at the both terminals of the bearing body is set felted wool and on the both terminal literal sides of the bearing body are set a magnetic lead check ring and a magnetic lead fly wheel. The magnetic lead check ring is fixed on the both terminal literal sides of the bearing body. The inner hole of the magnetic lead fly wheel is closely arranged on the axis and moves along with it. On the two magnetic lead fly wheels' outer face are set two springs. In the bearing box is set an alarm device for powder intrusion. The utility model has a simple structure and long life-span, solves the seal problem of the spiral conveyer bearing machines. At the same time it realizes to alarm in time when powder intrudes the bearing box and make it be repaired immediately.
Description
Technical field:
The utility model relates to a kind of bearing body, especially a kind of associated sealing arrangement for bearings that is used on the conveyor screw.
Background technology:
Conveyor screw is a kind of conveyer that does not have flexible traction organ.It relies on the axle that has helicallobe to rotate in the osed top hopper and promotes the material operation.Common conveyor screw by a cephalomere, periproct and in several segmentum intercalaris form the generally long 2-3m of every joint.Hopper is the U-shaped cross section, each internode bolt together (see figure 1).Conveyor screw easily is obstructed at suspension bearing place material when convey materials, easily form material lagging, as long as exist running clearance between bearing body structure axis and bearing, trickle material will be clamp-oned and cause seal failure in the bearing body, thereby make lubrication failure, cause bearing failure at last, be subjected to the restriction of bearing body size, in the actv. space, the bearing body sealing problem of prior art does not also have actv. radical cure means.
The utility model content
It is a kind of that the purpose of this utility model is to provide, and can significantly improve the bearing body sealing effectiveness, and can work as in the bear box in case enter a kind of New screw conveyer associated sealing arrangement for bearings that dust can be realized auto alarm.
For achieving the above object, the technical scheme that the utility model adopted is: a kind of New screw conveyer associated sealing arrangement for bearings contains the bearing cone endoporus and fits on the axle, bearing cone is located with clamp by the shaft shoulder and axle respectively, the outer ring of bearing fits in the stepped hole of bear box, the another side of outside race is located by bearing box cover hole step surface, bearing box cover is fixed on by socket bolt and constitutes bearing body on the bear box, in the bearing body endoporus of bearing both sides, is furnished with skeleton oil seal respectively, be characterized in: the oil packing chamber of three the ring groove shapes that in the bearing body endoporus of bearing both sides, also distribute successively in the lateral respectively, the chamber crosses, air-tight chamber, and on the oil packing chamber, be provided with zerk, on the axle journal of indoor axle relatively that crosses, is furnished with the O RunddichtringO, on air-tight chamber, be provided with the pressurized air interface, in the endoporus of bearing body two ends, is furnished with wool felt, is furnished with the magnetic graphite back-up ring respectively in side, bearing body two ends, the magnetic graphite flywheel, the magnetic graphite back-up ring is fixed on the end face of bearing body both sides, the endoporus close-fitting of magnetic graphite flywheel with the axle running, respectively is fixed with a spring on the axle of two magnetic graphite flywheel lateral surfaces on axle; Be provided with an end of positive and negative electrode current return lead in bear box, the other end of lead is drawn outside bearing body and is connected on the powder feeding alarm device.
Described New screw conveyer associated sealing arrangement for bearings is characterized in: the magnetic graphite flywheel is made of disc washer and double-paraboloid line style flywheel stack combinations one, and the periphery of its medial surface is circular, and the periphery of lateral surface is the double-paraboloid line style.
The utility model beneficial effect compared with prior art:
1, because pressurized air is incorporated on the bearing body, and the grease sealing of joint both sides, make and formed a more complete sealing system between the three, converge the chamber between grease chamber in the sealing member and the air chamber, be comparable to the central labyrinth seal of general design, but under stable compressed air pressure effect, make the G﹠O full level that converges the chamber very high, cooperate the O RunddichtringO to form and have better sealing effectiveness, solved common bearing for screw conveyer mechanical seal problem than general labyrinth seal;
2, the sealing of pair of magnetic flywheel is adopted in the outermost sealing, makes side seal into radial seal, can not consider tolerance clearance fully between two sealing members.Thereby fundamentally changed the leak free effect.The flywheel outer ring is designed to the double-paraboloid line style, no matter conveyer can both push away face of joint with coal dust to which direction pulverized coal conveying, reduces the coal dust pressure of face of joint;
2, the utility model is simple in structure, and is easy to process, and installation and maintenance load are all very little, and a spot of adjustment is carried out in sealing, just can use in the conveyer of carrying different medium;
3, the utility model has improved the service life of bearing significantly, has reduced fault power time widely.Through contrasting on probation showing, prior art is under the situation of running continuously, and its service life is generally about 5 months; And the utility model is under the situation of continuously running, general about 12 months of its service life;
4, the pumped (conveying) medium of Zeng Jiaing enters into warning device behind the bear box, utilizes the electric conductivity of coal dust to want big principle than air, sets up the warning system, makes the bearing physical efficiency obtain maintenance in time.
Description of drawings:
Fig. 1 is prior art running condition figure;
Fig. 2 is a front view of the present utility model;
Fig. 3 is a magnetic graphite flywheel front view;
Fig. 4 is the upward view of Fig. 3.
The specific embodiment:
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing:
As Fig. 2-shown in Figure 4, the inner ring endoporus of bearing 6 fits on the axle 1, the inner ring of bearing 6 is located with clamp 15 by the shaft shoulder and axle respectively, the outer ring of bearing 6 fits in the stepped hole of bear box 18, the another side of bearing 6 outer rings is by step surface location, bearing box cover 5 hole, bearing box cover 5 is fixed on the bear box 18 by socket bolt 7 and constitutes bearing body, in the bearing body endoporus of bearing 6 both sides, are furnished with outside framework oil seal 8 sealings respectively, the oil packing chamber 2 of three ring groove shapes successively also distributes in the lateral respectively in the bearing body endoporus of bearing 6 both sides, chamber 3 crosses, air-tight chamber 4, and on oil packing chamber 2, be provided with zerk 11, in the chamber 3 that crosses, is furnished with O RunddichtringO 10 on the axle journal of relative axle 1, on air-tight chamber 4, be provided with pressurized air interface 9, in the endoporus of bearing body two ends, is furnished with wool felt 14, is furnished with magnetic graphite back-up ring 12 respectively in side, bearing body two ends, magnetic graphite flywheel 13, magnetic graphite back-up ring 12 is fixed on the both sides end face of bearing body, the endoporus close-fitting of magnetic graphite flywheel 13 is turning round with axle 1 on axle 1, on the axle 1 of two magnetic graphite flywheels, 13 lateral surfaces, respectively be fixed with a spring, force magnetic graphite flywheel 13 tightly to combine all the time with magnetic graphite back-up ring 12; Magnetic graphite flywheel 13 is made of disc washer and double-paraboloid line style flywheel stack combinations one, and the periphery of its medial surface is circular, and the periphery of lateral surface is the double-paraboloid line style.Be provided with an end of positive and negative electrode current return lead 17 in bear box 18, the other end of lead 17 is drawn outside bearing body and is connected on the powder feeding alarm device 16.
Principle of work:
What 1, the design selected for use is to carry leak free thrust baring 6; the bearing cartridge clip outside self band sealing layer; and seal very tight; play the effect of autoprotection; add that the utility model forms two seals in bearing 6 outsides, make in the bear box 18 to be full of grease, just in case after advancing powder or other in the bear box 18 and transporting material; to have a penetrablility relatively poor because coal dust or operation material are mixed in a time-out with oil, can't enter in the bearing 6 operation trajectories.Add at the set outside framework oil seal 8 in bear box 18 two sides, the grease in the bear box 18 and the pressurized air of outer seal part are kept apart, exchange penetration does not take place, can prevent that on the one hand the grease in the bear box 18 from infiltering in the pressurized air air-tight chamber 4, stop up compressed air channel, prevent that also pressurized air from directly entering in the bear box 18 simultaneously, cause the dust or other medium that infilter in the pressurized air air-tight chamber 4, along with pressurized air together, enter in the bear box 18.
2, generation current factory generally all is equipped with the control pressurized air, draw one tunnel control pressurized air, sealing medium as the bearing body sealing member, be in the middle of two grease chambeies in the pressurized air air-tight chamber 4, guarantee that the grease in two grease chambeies positions, and can exchange penetration, produce mutually and pollute, the 2 pairs of pressurized airs in both sides oil packing chamber have also been carried out space constraint in addition, have prevented that pressurized air from overflowing from oil packing chamber 2, cause the transmission medium flying dust.
3, be to utilize O type circle 10 to seal together in the middle of the three seals chamber, main effect is: O type circle 10 own is exactly reasonable leakproofing material on the one hand, in addition on the one hand, this chamber 3 that crosses is between compressed air sealing chamber 4 and the oil packing chamber 2, design function itself be with G﹠O in this indoor converging, the pressure that pressurized air applied pressure and outer coal dust form grease in the sealed chamber is at this
In form the cushion layer that crosses, the labyrinth seal in the general design has been used for reference in this part design, but sealing effectiveness is more eager to excel in whatever one does than direct labyrinth seal.
4, grease oil packing chamber 2 has been arranged in 3 outsides, chamber that cross, and installed zerk 11 additional in grease oil packing chamber 2, the grease of regular replenishment sealed chamber, zerk 11 adopts self-locking type, during oiling, zerk 11 sealing pellets shot from a slingshot are forced down, after oiling finishes, pellet shot from a slingshot ejects, and zerk 11 is sealed.The radical function of grease oil packing chamber 2 is to prevent that directly coal dust from entering into bearing seal, the pressurized air of 2 inboards, oil packing chamber is exerted pressure to grease all the time, and pressure is by the oil reservoir transmission, finally be applied to oil packing chamber 2 seals, stoped the infiltration of coal dust.
5, the outermost layer of sealing member is design-calculated bearing body leak free most critical position, on design and making, is the unique critical point that contacts with coal dust of this bearing body, has at first added wool felt sealing 14 in bearing body two stomidiums, prevents that grease from oozing out; Be provided with a pair of dynamic seal (packing) respectively in side, bearing body two ends, form by the DYNAMIC MAGNETIC graphite flywheel 13 that is fixed on the static magnetic graphite ring washer 12 on the bearing body sealing member and be fixed on the axle 1, DYNAMIC MAGNETIC graphite flywheel 13 rotates together with axle 1, coaxial 1 contact ratio of magnetic graphite flywheel 13 endoporus is tighter, but can be, thereby guarantee that this a pair of magnetic pad circle engages tightly all the time axially the moving of axle 1.Magnetic graphite flywheel 13 is divided into two parts, and a part is tightly to engage with static magnetic graphite gasket 12, stops coal dust to penetrate into the bearing body sealing from face of joint; Another part is that magnetic graphite flywheel 13 lateral surfaces are designed to the double-paraboloid line style, and Parabolic cutting edge will enter the coal dust of faying face, and incision material casting trough because action of centrifugal force is rotated the faying face of dishing out, reduces the pressure of the coal dust of face of joint.DYNAMIC MAGNETIC graphite flywheel 13 poted assemblives can adopt high magnetic material, and magnetic graphite flywheel 13 two parts are attracted each other, and reach the leak free effect; Also can on axle 1, fix a spring, adopt the design add spring thrust, make that flywheel and packing ring are tight to be combined, all in the utility model scope of disclosure.
6, when sealing member damages, in order in time to remind the user to note, prevent that bearing 6 is damaged, cause bearing body to be scrapped fully, in bear box 18, increased powder feeding alarm device 16, the groundwork principle of powder feeding alarm device 16, it is the electric conductivity that utilizes coal dust, one end of in bear box 18, joining the positive and negative electrode of lead 17, set up a current return, after 18 li of bear boxs entered coal dust, one of two leads 17 were rectified between the negative pole because the coal dust existence, the current return conducting makes warning device realize reporting to the police.
Claims (2)
1, a kind of New screw conveyer associated sealing arrangement for bearings, the inner ring endoporus that contains bearing (6) fits on the axle (1), the inner ring of bearing (6) is located with clamp (15) by the shaft shoulder and axle respectively, the outer ring of bearing (6) fits in the stepped hole of bear box (18), the another side of bearing (6) outer ring is located by bearing box cover (5) hole step surface, bearing box cover (5) is fixed on bear box (18) by socket bolt (7) and goes up the formation bearing body, in the bearing body endoporus of bearing (6) both sides, is furnished with outside framework oil seal (8) sealing respectively, it is characterized in that: the oil packing chamber (2) of three the ring groove shapes that in the bearing body endoporus of bearing (6) both sides, also distribute successively in the lateral respectively, chamber (3) crosses, air-tight chamber (4), and on oil packing chamber (2), be provided with zerk (11), in the chamber that crosses (3), is furnished with O RunddichtringO (10) on the axle journal of relative axle (1), on air-tight chamber (4), be provided with pressurized air interface (9), in the endoporus of bearing body two ends, is furnished with wool felt (14), is furnished with magnetic graphite back-up ring (12) respectively in side, bearing body two ends, magnetic graphite flywheel (13), magnetic graphite back-up ring (12) is fixed on the both sides end face of bearing body, the endoporus close-fitting of magnetic graphite flywheel (13) is gone up with axle (1) running at axle (1), respectively is fixed with a spring on the axle (1) of two magnetic graphite flywheel (13) lateral surfaces; Be provided with an end of positive and negative electrode current return lead (17) in bear box (18), the other end of lead (17) is drawn outside bearing body and is connected on the powder feeding alarm device (16).
2, New screw conveyer associated sealing arrangement for bearings according to claim 1, it is characterized in that: magnetic graphite flywheel (13) is made of disc washer and double-paraboloid line style flywheel stack combinations one, the periphery of its medial surface is circular, and the periphery of lateral surface is the double-paraboloid line style.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200520134171 CN2866413Y (en) | 2005-11-30 | 2005-11-30 | Screw conveyor bearing sealing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200520134171 CN2866413Y (en) | 2005-11-30 | 2005-11-30 | Screw conveyor bearing sealing device |
Publications (1)
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CN2866413Y true CN2866413Y (en) | 2007-02-07 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN 200520134171 Expired - Fee Related CN2866413Y (en) | 2005-11-30 | 2005-11-30 | Screw conveyor bearing sealing device |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105151690A (en) * | 2015-09-08 | 2015-12-16 | 宁夏共享机床辅机有限公司 | Spiral conveyer sealing device |
CN105253555A (en) * | 2015-11-06 | 2016-01-20 | 玖龙纸业(重庆)有限公司 | Coating paperboard production pigment charging device |
CN105604453A (en) * | 2015-12-24 | 2016-05-25 | 占行波 | Connecting opening communication automatic sealing part |
CN112179660A (en) * | 2020-08-31 | 2021-01-05 | 中国航发南方工业有限公司 | Novel high-speed flywheel test device |
-
2005
- 2005-11-30 CN CN 200520134171 patent/CN2866413Y/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105151690A (en) * | 2015-09-08 | 2015-12-16 | 宁夏共享机床辅机有限公司 | Spiral conveyer sealing device |
CN105151690B (en) * | 2015-09-08 | 2017-08-29 | 宁夏共享机床辅机有限公司 | A kind of conveying worm sealing device |
CN105253555A (en) * | 2015-11-06 | 2016-01-20 | 玖龙纸业(重庆)有限公司 | Coating paperboard production pigment charging device |
CN105604453A (en) * | 2015-12-24 | 2016-05-25 | 占行波 | Connecting opening communication automatic sealing part |
CN112179660A (en) * | 2020-08-31 | 2021-01-05 | 中国航发南方工业有限公司 | Novel high-speed flywheel test device |
CN112179660B (en) * | 2020-08-31 | 2022-08-09 | 中国航发南方工业有限公司 | High-speed flywheel testing device |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |