CN110075975B - Vibration ball type labyrinth dustproof grinding roller device - Google Patents
Vibration ball type labyrinth dustproof grinding roller device Download PDFInfo
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- CN110075975B CN110075975B CN201910470023.1A CN201910470023A CN110075975B CN 110075975 B CN110075975 B CN 110075975B CN 201910470023 A CN201910470023 A CN 201910470023A CN 110075975 B CN110075975 B CN 110075975B
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- shaft
- grinding roller
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- 238000000227 grinding Methods 0.000 title claims abstract description 69
- 239000000843 powder Substances 0.000 claims abstract description 77
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 239000011324 bead Substances 0.000 claims description 51
- 238000007789 sealing Methods 0.000 claims description 36
- 230000003068 static effect Effects 0.000 claims description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 23
- 239000010959 steel Substances 0.000 claims description 23
- 238000005553 drilling Methods 0.000 claims description 18
- 238000003801 milling Methods 0.000 claims description 18
- 238000009434 installation Methods 0.000 claims description 17
- 238000004062 sedimentation Methods 0.000 claims description 16
- 210000004907 gland Anatomy 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 12
- 238000001556 precipitation Methods 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 150000002739 metals Chemical class 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910000914 Mn alloy Inorganic materials 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 6
- 239000000428 dust Substances 0.000 description 34
- 239000003921 oil Substances 0.000 description 12
- 241000227287 Elliottia pyroliflora Species 0.000 description 8
- 230000000630 rising effect Effects 0.000 description 4
- 210000002268 wool Anatomy 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000004519 grease Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001965 increasing effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/08—Mills with balls or rollers centrifugally forced against the inner surface of a ring, the balls or rollers of which are driven by a centrally arranged member
-
- 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
- F16J15/44—Free-space packings
- F16J15/447—Labyrinth packings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a vibration ball type labyrinth dustproof grinding roller device, which comprises a shaft, a supporting component, a dustproof component and a transmission component, wherein the supporting component, the dustproof component and the transmission component are sequentially sleeved on the shaft from top to bottom, the dustproof component comprises a labyrinth stationary ring, a labyrinth movable ring and a rotary ring, the rotary ring is fixed on the upper end face of a bearing sleeve of the transmission component, a counter-current ring is arranged in the middle of an inner ring of the rotary ring, a step is arranged on the upper part of the inner ring of the rotary ring, a positioning ring is arranged on the step, the labyrinth movable ring is arranged on a throwing ring, the labyrinth stationary ring is arranged above the labyrinth movable ring and is mutually matched with the labyrinth movable ring, a multi-layer labyrinth gap is formed between the matching surfaces, vibration balls are arranged in the labyrinth gap, a powder throwing groove is formed between the lower end face of the labyrinth movable ring and the upper end face of the rotary ring, one end of the leak hole is communicated with the labyrinth gap, and the other end of the leak hole is communicated with the powder throwing groove. The device has good dustproof effect, reduces the maintenance cost in the running process of the Raymond mill and the vertical mill grinding roller device, and improves the production efficiency of enterprises.
Description
Technical Field
The invention relates to the technical field of dust-proof sealing on an output shaft oil level in mechanical equipment manufacturing, in particular to a vibration bead type labyrinth dust-proof grinding roller device in a Raymond mill and a vertical mill.
Background
Raymond mill and vertical mill are grinding equipment widely applied to high-fine powder grinding processing of 280 kinds of materials in mineral, chemical, building and other industries. But the output shafts of the Raymond mill, the vertical mill, the speed changing box, the blower, the analysis machine, the motor, the central shaft, the packer and the like are sealed and easy to enter powder and jam the bearing. Especially, the shaft seal in the Raymond mill and the vertical mill grinding roller device is easy to enter powder and be blocked, so that the grinding roller in the grinding roller device slides in a dragging way, and the scrapping of the grinding roller device assembly is not found in time. At present, there are two types of transmission of Raymond mill grinding roller devices: copper sheathing and bearing. The bearing grinding roller device is characterized in that bearings are arranged at two ends of a grinding roller sleeve with a supporting function, a thrust roller bearing is arranged at the upper end of the bearing grinding roller device, a self-aligning roller bearing is arranged at the lower end of the bearing grinding roller device, a single gland is arranged at the lower end of the bearing grinding roller device, a shaft sleeve is arranged in the single gland, and a framework oil seal, a wool felt and a floating oil seal are arranged on the shaft sleeve and finally pressed and locked by a slotted nut. In severe working condition complex environment, the framework oil seal and the wool felt are worn off-set very fast, the floating oil seal rubber loses compression elasticity and compensation function, lubricating grease leaks very fast, the wool felt and the floating oil seal are worn off dry, and dust enters into a dead bearing. The copper bush grinding roller device is with supporting sleeve fixed axle, and the axle is non-rotating, and the axle lower part holds one or two transmission copper bushes, and the fixed steel bushing of copper bush outer lane, the fixed grinding roller of steel bush outer lane, grinding roller and grinding ring friction under rotation force and centrifugal force effect, the copper bush rotates, and skeleton oil blanket, expander are installed in the upper end of copper bush, and the machine oil level top. The vertical mill grinding roller device is fixed by a supporting sleeve, the shaft does not rotate, two bearings are arranged at the tail part of the shaft, and the vertical mill grinding roller is fixed on the bearing sleeve of the outer ring of the bearing. Although the Raymond mill transmission copper bush and the vertical mill bearing are soaked in engine oil, the inorganic oil leakage problem is solved, the skeleton oil seal and the expander are in a dry friction state above the engine oil level, and the skeleton oil seal and the expander are extremely easy to wear. At present, dust is easy to enter the grinding roller devices of the Raymond mill and the vertical mill, and the service life is not expected, so that the performance of the shaft dustproof sealing device of the grinding roller devices of the Raymond mill and the vertical mill is an important index for evaluating the quality of products of the Raymond mill and the vertical mill, and is also an important factor for determining the safety and economic production of grinding enterprises.
Disclosure of Invention
The invention aims to overcome the defect that the existing Raymond mill and vertical mill grinding roller device is poor in dustproof effect due to the adoption of a framework oil seal, a wool felt, a floating oil seal, a simple labyrinth and the like in dustproof of a rotating shaft, and provides the vibrating bead type labyrinth dustproof grinding roller device which is good in dustproof effect, reduces maintenance cost and maintenance cost in the operation of the Raymond mill and vertical mill grinding roller device, and improves production efficiency of enterprises.
The technical scheme for realizing the aim of the invention is as follows:
the utility model provides a vibration pearl formula maze grinding roller device that prevents dust, axle, supporting component, dustproof subassembly and drive assembly cup joint on the axle from top to bottom in proper order, and is different with prior art,
the transmission assembly comprises a grinding roller, a bearing sleeve, a first roller bearing, a second roller bearing and a lower gland, wherein the bearing sleeve is sleeved on a shaft through the first roller bearing and the second roller bearing, a pressing sleeve is arranged between the first roller bearing and the second roller bearing and sleeved on the shaft, the upper end face of the pressing sleeve props against the lower end face of an inner ring of the first roller bearing, the lower end face of the pressing sleeve props against the upper end face of an inner ring of the second roller bearing, a shaft tail positive and negative nut is arranged on the lower end face of the second roller bearing, the shaft tail positive and negative nut compresses the lower end face of the inner ring of the second roller bearing, the lower gland is arranged below the shaft tail positive and negative nut and is fixed on the bearing sleeve through a screw, and the grinding roller is sleeved on the outer ring of the bearing sleeve and locked by the grinding roller negative nut;
the dustproof assembly comprises a labyrinth stationary ring, a labyrinth movable ring and a rotary ring, wherein the rotary ring is fixed on the upper end face of a bearing sleeve of the transmission assembly through screws, a countercurrent ring is arranged in the middle of an inner ring of the rotary ring, a step is arranged on the upper part of the inner ring of the rotary ring, a positioning ring is arranged on the step, the labyrinth movable ring is arranged on the rotary ring, the labyrinth stationary ring is arranged above the labyrinth movable ring and is matched with the labyrinth movable ring, a multi-layer labyrinth gap is formed between the matching surfaces, vibration beads are arranged in the labyrinth gap, a powder throwing groove is formed between the lower end face of the labyrinth movable ring and the upper end face of the rotary ring, a leakage hole is further formed in the lower end face of the labyrinth movable ring, one end of the leakage hole is communicated with the labyrinth gap, and the other end of the leakage hole is communicated with the powder throwing groove;
the supporting assembly comprises a supporting sleeve and a cross arm shaft, the supporting sleeve is sleeved on the shaft, the cross arm shaft is fixed on the supporting sleeve, and a positive nut and a negative nut of the shaft head are arranged at the top of the supporting sleeve.
The powder throwing groove is provided with vibration beads, and is a concave groove which is arranged on the lower end face of the labyrinth movable ring upwards or a concave groove which is arranged on the upper end face of the rotary ring downwards.
The labyrinth stationary ring upper end face be equipped with and add the pearl hole, add pearl hole and labyrinth clearance intercommunication.
The labyrinth movable ring and the labyrinth stationary ring are mutually matched with the toothed ring of the outer ring to form a U-shaped overflow groove, so that dust can be effectively prevented or reduced from entering the labyrinth gap.
The labyrinth rotating ring is characterized in that a powder throwing groove or a powder throwing gap is formed in the lower end face of the labyrinth rotating ring and the upper end face of the rotating ring, and the powder throwing groove, the powder throwing gap and the powder throwing groove are communicated, so that dust in the powder throwing groove can be conveniently thrown out of the powder throwing groove or the powder throwing gap under the action of centrifugal force in the process of following the rotating ring to rotate.
The lower end excircle side of maze rotating ring or the excircle side of swivel be equipped with and add pearl hole or gas pocket, add pearl hole or gas pocket and get rid of the powder inslot for add the vibration pearl from adding the pearl hole and get rid of the powder inslot, also be convenient for get rid of the powder inslot dust and follow the swivel rotation in-process, under the effect of centrifugal force, get rid of the powder inslot dust and throw outside.
The swivel is a throwing ring or a precipitation ring.
The vibration beads are made of ceramic, silicon carbide or glass materials, and have the characteristics of wear resistance, temperature resistance, self lubrication, small friction force and light weight, and the diameter of the vibration beads is larger than that of the leakage holes.
The bearing sleeve is formed by processing round steel through a lathe, a milling machine and a drilling machine, the outer circular surface is a conical bearing sleeve with a small upper part and a large lower part, the upper end and the lower end of the inner circular surface are provided with mounting positions of a first roller bearing and a second roller bearing or copper sleeves, and the outer circular surface of the bearing sleeve is also provided with an anti-rotation key for preventing the grinding roller from slipping with the bearing sleeve in the production process; the upper end face of the bearing sleeve is provided with a plurality of equal tooth holes which are correspondingly connected with the through holes of the swivel, the lower end face of the bearing sleeve is provided with a plurality of equal tooth holes which are correspondingly connected with the locking through holes of the lower gland, and the conical outer upper end of the bearing sleeve is provided with outer teeth which are matched with the inner teeth of the grinding roller counter nut.
The grinding roller is formed by casting manganese alloy steel and finish machining by a vertical lathe, and the inner circle of the grinding roller is matched with the outer circle surface of the conical bearing sleeve with the big upper part and the small lower part.
The shaft is formed by processing round steel through a numerical control lathe, a milling machine, a drilling machine and heat treatment, the lower part of the shaft is provided with two step bearing inner ring installation positions for installing a first roller bearing and a second roller bearing, and the step at the tail part of the shaft is provided with positive and negative lock nut outer teeth; the middle part of the shaft is provided with a static ring positive and negative tooth position; the upper part of the shaft is provided with a conical supporting sleeve installation position with a small upper part and a large lower part, and the top of the shaft is provided with a supporting sleeve positive and negative nut locking outer tooth.
The labyrinth static ring is formed by processing metals such as round steel through a numerical control lathe, a milling machine and a drilling machine, the upper end of the labyrinth static ring is provided with an inner tooth, the upper end surface of the labyrinth static ring is provided with a bead adding hole for adding vibration beads into a labyrinth gap, and the bead adding hole is blocked by a screw plug to prevent dust from entering the labyrinth gap; the lower end face of the labyrinth stationary ring is provided with a plurality of annular sealing teeth with certain intervals and certain heights, and grooves matched with the annular sealing teeth of the labyrinth movable ring are arranged at the front and back of the root of the annular sealing teeth; the outer upper end of the labyrinth static ring is provided with a plurality of uniformly distributed axial semicircular notch for boosting and locking.
The labyrinth moving ring is formed by processing metals such as round steel through a lathe, a milling machine, a drilling machine, a surface grinding machine and a surface grinding machine, the upper end of the labyrinth moving ring is provided with a plurality of annular sealing teeth with certain intervals and certain heights, steps are arranged between the roots of the annular sealing teeth, the upper end face of each step is high and low, and the lower end face of each step is a groove; two O-shaped sealing rings are arranged on the outer side of the lower end face of the labyrinth moving ring, which is matched with the rotating ring, and are used for static seal dust prevention.
The sedimentation ring is formed by processing round steel through a lathe, a milling machine, a drilling machine and the like, the upper part of the inner circular surface of the sedimentation ring is provided with a positioning ring installation position, the lower part of the inner circular surface is provided with a countercurrent ring installation position, the lower end surface of the inner circular surface is provided with uniformly distributed locking through holes connected with a labyrinth moving ring, and screws penetrate through the evenly distributed locking through holes and are fixedly connected with the labyrinth moving ring; the lower part of the outer circle of the sedimentation ring is provided with a transverse boss, the end surface of the transverse boss is provided with through holes which are uniformly distributed and are connected with and locked with the bearing sleeve through bolts, the upper end surface of the sedimentation ring is provided with a downward concave powder throwing groove, and the upper end surface of the sedimentation ring outside the powder throwing groove is attached to an O-shaped sealing ring outside the lower end surface of the labyrinth ring; the upper part of the outer circle of the precipitation ring is provided with two air holes, the air holes are communicated with the powder throwing groove, and when in maintenance, air is blown in from one air hole to discharge dust from the other air hole.
The ring is formed by processing round steel through a lathe, a milling machine, a drilling machine and the like, the upper part of the circular surface in the ring is provided with a positioning ring installation position, the lower part of the inner circular surface is provided with a counter-current ring installation position, the lower end surface of the inner circular surface is provided with uniformly distributed locking through holes connected with a labyrinth moving ring, and a screw penetrates through the uniformly distributed locking through holes to be fixedly connected with the labyrinth moving ring; the lower part of the ring is provided with a horizontal boss, the end face of the horizontal boss is provided with through holes which are uniformly distributed and are locked with the bearing sleeve through screw connection, a plurality of uniformly distributed powder throwing grooves are milled on the end face of the ring which is bonded with the outer ring of the lower end face of the labyrinth movable ring, or a powder throwing gap is arranged on the lower end face of the ring which is connected with the outer ring of the labyrinth movable ring, and the outer ring of the ring which is connected with the small boss is provided with a small boss for enclosing the lower end face of the outer ring of the labyrinth movable ring, so that the overflow powder throwing effect is achieved.
The beneficial effects are that: the labyrinth static ring and the labyrinth dynamic ring in the device are mutually matched to form a plurality of layers of labyrinth gaps, vibration beads are arranged in the labyrinth gaps to form a multi-folded bent path, the diameter of the vibration beads in the rising path is smaller, good throttling, decompression and blocking effects on dust airflow in the rising path are facilitated, and meanwhile, dust in the rising path is promoted to precipitate downwards under the continuous vibration and self weight effects of the vibration beads, and the dust enters the dust throwing groove through the leakage holes; the diameter of the vibration beads in the descending path is larger than the width of the leakage holes, so that dust is pressed into the leakage holes, and the dust can slide downwards to precipitate; in the device, the self-sealing and U-shaped overflow groove structure formed by the vibrating beads, the labyrinth movable ring and the sealing toothed ring of the labyrinth stationary ring is beneficial to the overflow of dust in the outer layer gap; the self-sealing and U-shaped overflow groove structure reduces the influence of the negative pressure dust airflow generated by the cooperation of the outer layer blower and the analyzer on the inner layer dust-proof path; the design of the groove powder throwing and the U-shaped overflow groove gap powder throwing is beneficial to powder throwing under the negative pressure dust airflow working condition; the vibration ball type dustproof sealing device is non-contact sealing, a gap is formed between the labyrinth static ring and the labyrinth movable ring sealing annular tooth, the vibration ball type dustproof sealing device is not in direct contact or friction, and the vibration ball type dustproof sealing device are in contact friction with the labyrinth static ring and the labyrinth movable ring sealing annular tooth but are small in abrasion, so that the vibration ball type labyrinth dustproof sealing device is more abrasion-resistant; the sealing path of the vibration ball type labyrinth dustproof device is axially elongated, dust which is self-sealed and has a U-shaped overflow groove structure does not have airflow assistance and needs to pass through a falling layer and a rising layer with vibration balls for multiple times, and the dust falls into a precipitation ring or a throwing ring under the action of self weight and centrifugal force; the dustproof sealing device has no grease leakage on the transmission bearing (copper sleeve), so that medical and edible powder is not polluted by grease, and the quality safety is ensured. The vibration ball type labyrinth dustproof sealing device makes dust of the Raymond mill and the vertical mill roller device difficult to enter the transmission bearing (copper bush), greatly prolongs the service life of the transmission bearing (copper bush), reduces the running, repairing and maintaining costs of enterprises, and has obvious yield increasing effect.
Drawings
Fig. 1 is a schematic structural view of embodiment 1;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
FIG. 4 is an enlarged view of portion C of FIG. 1;
fig. 5 is a schematic structural view of embodiment 2;
FIG. 6 is an enlarged view of portion D of FIG. 5;
FIG. 7 is a top view of section D of FIG. 5;
fig. 8 is a schematic structural view of embodiment 3;
fig. 9 is an enlarged view of the portion E in fig. 8;
in the figure, 1, a lower gland 2, a shaft tail counter nut 3, a second roller bearing 4, a grinding roller 5, a bearing sleeve 6, a pressing sleeve 7, a first roller bearing 8, a grinding roller counter nut 9, a pressing ring 10, a counter flow ring 11, a rotary ring 12, a positioning ring 13, a labyrinth ring 15, a labyrinth gap 16, a bead adding hole 17, a static ring counter nut 18, a shaft 19, a support sleeve 20, a cross arm shaft 21, a shaft head counter nut 22, a powder throwing groove 23, a leakage hole 24, a powder throwing groove 25, a vibration bead 26, a U-shaped overflow groove 27, a powder throwing gap 28, a bead adding hole/air hole 29 and a boss.
Detailed Description
The invention is further illustrated, but not limited, by the following figures and examples.
Example 1:
as shown in fig. 1, 2, 3 and 4, a vibration bead type labyrinth dustproof grinding roller device, a shaft 18, a supporting component, a dustproof component and a transmission component, which are sequentially sleeved on the shaft from top to bottom, unlike the prior art,
the transmission assembly comprises a grinding roller 4, a bearing sleeve 5, a first roller bearing 7, a second roller bearing 3 and a lower gland 1, wherein the bearing sleeve 5 is sleeved on a shaft 18 through the first roller bearing 7 and the second roller bearing 3, a pressing sleeve 6 is arranged between the first roller bearing 7 and the second roller bearing 3 and sleeved on the shaft 18, the upper end surface of the pressing sleeve 6 props against the lower end surface of an inner ring of the first roller bearing 7, the lower end surface of the pressing sleeve 6 props against the upper end surface of an inner ring of the second roller bearing 3, the lower end surface of the second roller bearing 3 is provided with a shaft tail positive and negative nut 2, the shaft tail positive and negative nut 2 compresses the lower end surface of the inner ring of the second roller bearing 3, the lower gland 1 is arranged below the shaft tail positive and negative nut 2, the lower gland 1 is fixed on the bearing sleeve 5 through screws, and the grinding roller 4 is sleeved on the outer ring of the bearing sleeve 5 and locked by a grinding roller negative nut 8;
the dustproof assembly comprises a labyrinth stationary ring 14, a labyrinth movable ring 13 and a rotary ring 11, wherein the rotary ring 11 is fixed on the upper end face of a bearing sleeve 5 of the transmission assembly through screws, a counter-flow ring 10 is arranged in the middle of an inner ring of the rotary ring 11, a pressing ring 9 is arranged below the counter-flow ring 10, a step is arranged at the upper part of the inner ring of the rotary ring 11, a positioning ring 12 is arranged on the step, the labyrinth movable ring 13 is arranged on the rotary ring 11 through screws, the labyrinth stationary ring 14 is arranged above the labyrinth movable ring 13 and is matched with the labyrinth movable ring 13, a multi-layer labyrinth gap 15 is formed between the matching surfaces, vibration beads 25 are arranged in the labyrinth gap 15 to form a multi-folded folding curved path, a powder throwing groove 24 is formed between the lower end face of the labyrinth movable ring 13 and the upper end face of the rotary ring 11, a leak hole 23 is further formed in the lower end face of the labyrinth movable ring 13 and is communicated with the labyrinth gap 15, and the other end of the leak hole 23 is communicated with the powder throwing groove 24;
the supporting component comprises a supporting sleeve 19 and a cross arm shaft 20, wherein the supporting sleeve 19 is sleeved on the shaft 18, the cross arm shaft 20 is fixed on the supporting sleeve 19, and a spindle head positive and negative nut 21 is arranged at the top of the supporting sleeve 19.
The powder throwing groove 24 is internally provided with a vibration bead 25, and the powder throwing groove 24 is a concave groove arranged on the lower end surface of the labyrinth movable ring 13 upwards.
The upper end face of the labyrinth static ring 14 is provided with a bead adding hole 16, and the bead adding hole 16 is communicated with the labyrinth gap 15.
The labyrinth movement 13 and the labyrinth static ring 14 are mutually matched with the toothed ring of the outer ring to form a U-shaped overflow groove 26, so that dust can be effectively prevented or reduced from entering the labyrinth gap 15.
The lower end face of the labyrinth moving ring 13 and the upper end face of the rotating ring 11 are provided with a powder throwing groove 22, the powder throwing groove 22 is communicated with the powder throwing groove 24, and dust in the powder throwing groove 24 is conveniently thrown out of the powder throwing groove 22 under the action of centrifugal force in the process that the dust in the powder throwing groove 24 follows the rotating ring 11 to rotate.
The side face of the outer circle of the lower end of the labyrinth movable ring 13 is provided with a bead adding hole 28, the bead adding hole 28 is communicated with the powder throwing groove 24 and used for adding the vibration beads 25 into the powder throwing groove 24 from the bead adding hole 28, and dust in the powder throwing groove 24 is also convenient to throw out the dust in the powder throwing groove 24 outside under the action of centrifugal force in the rotation process of the rotary ring 11.
The vibration beads 25 are made of ceramic, silicon carbide or glass materials, and have the characteristics of wear resistance, temperature resistance, self lubrication, small friction force and light weight, and the diameter of the vibration beads 25 is larger than that of the leakage holes 23.
The bearing sleeve 5 is formed by processing round steel through a lathe, a milling machine and a drilling machine, the outer circular surface is a conical bearing sleeve 5 with a small upper part and a large lower part, the upper end and the lower end of the inner circular surface are provided with mounting positions of a first roller bearing 7 and a second roller bearing 3, the outer circular surface of the bearing sleeve 5 is also provided with an anti-rotation key, and the grinding roller 4 and the bearing sleeve 5 are prevented from slipping in the production process; the upper end face of the bearing sleeve 5 is provided with a plurality of equal tooth holes which are correspondingly connected with the through holes of the swivel 11, the lower end face of the bearing sleeve 11 is provided with a plurality of equal tooth holes which are correspondingly connected with the locking through holes of the lower gland 1, and the conical outer upper end of the bearing sleeve 5 is provided with outer teeth which are matched with the inner teeth of the grinding roller counter nut 8.
The grinding roller 4 is molded by casting manganese alloy steel and finish machining by a vertical lathe, and the inner circle of the grinding roller 4 is matched with the outer circle surface of the conical bearing sleeve 5 with the big upper part and the small lower part.
The shaft 18 is formed by processing round steel through a numerical control lathe, a milling machine, a drilling machine and heat treatment, two stepped bearing inner ring mounting positions are arranged at the lower part of the shaft 18 and used for mounting the first roller bearing 7 and the second roller bearing 3, and positive and negative lock nut outer teeth are arranged at the steps at the tail part of the shaft; the middle part of the shaft 18 is provided with a labyrinth static ring 14 positive and negative tooth positions; the upper part of the shaft is provided with a conical supporting sleeve installation position with a small upper part and a large lower part, and the top of the shaft is provided with a supporting sleeve positive and negative nut locking outer tooth.
The labyrinth static ring 14 is formed by processing metals such as round steel through a numerical control lathe, a milling machine and a drilling machine, is locked on a shaft 18 by adopting a static ring back nut 17, is provided with an inner tooth at the inner upper end of the labyrinth static ring 14, is provided with a bead adding hole 16 for adding and placing vibration beads 25 into a labyrinth gap 15 at the upper end surface, and the bead adding hole 16 is blocked by a screw plug to prevent dust from entering the labyrinth gap 15; the lower end surface of the labyrinth stationary ring 14 is provided with a plurality of annular sealing teeth with certain intervals and certain heights, and the front and rear parts of the root parts of the annular sealing teeth are provided with grooves matched with the annular sealing teeth of the labyrinth movable ring 13; the outer upper end of the labyrinth static ring 14 is provided with a plurality of uniformly distributed axial semicircular notch for boosting and locking.
The labyrinth moving ring 13 is formed by processing metals such as round steel through a lathe, a milling machine, a drilling machine, a surface grinding machine and a plane grinding machine, the upper end of the labyrinth moving ring 13 is provided with a plurality of annular sealing teeth with certain intervals and certain heights, steps are arranged between the roots of the annular sealing teeth, the upper end face of each step is high and low, and the lower end face of each step is a groove; two O-shaped sealing rings are arranged on the outer side of the lower end face of the labyrinth moving ring 13, which is matched with the rotating ring 11, and are used for static seal and dust prevention.
The rotating ring 11 is a ring-throwing ring which is formed by processing round steel through a lathe, a milling machine, a drilling machine and the like, a positioning ring installation position is arranged at the upper part of the inner circular surface of the ring-throwing ring, a counter-current ring 10 installation position is arranged at the lower part of the inner circular surface, uniformly distributed locking through holes connected with the labyrinth moving ring 13 are formed in the lower end surface of the inner circular surface, and screws penetrate through the through holes and are fixedly connected with the labyrinth moving ring 13; the lower part of the ring is provided with a horizontal boss, the end face of the horizontal boss is provided with through holes which are uniformly distributed and are locked with the bearing sleeve through screw connection, the end face of the ring, which is bonded with the outer ring of the lower end face of the labyrinth moving ring 13, is milled with a plurality of uniformly distributed powder throwing grooves 22, and the outer ring of the ring is provided with a small boss 29 for enclosing the lower end face of the outer ring of the labyrinth moving ring 13, so as to play the role of overflow powder throwing.
Example 2:
as shown in figures 5, 6 and 7,
the labyrinth moving ring 13 is characterized in that a powder throwing gap 27 is formed between the lower end face and the upper end face of the rotating ring, the powder throwing gap 27 is communicated with the powder throwing groove 24, and dust in the powder throwing groove 24 is conveniently thrown out from the powder throwing gap 27 under the action of centrifugal force in the process that the dust in the powder throwing groove 24 rotates along with the rotating ring 11.
The remainder was the same as in example 1.
Example 3:
as shown in figures 8 and 9 of the drawings,
the powder throwing groove 24 is a concave groove which is arranged on the upper end face of the swivel 11 and is downward, and the vibration beads 25 are not added in the powder throwing groove 24.
The rotary ring 11 is provided with an air hole 28 on the outer circular side surface, the air hole 28 is communicated with the powder throwing groove 24, and dust settled in the powder throwing groove 24 is blown out by air when the machine is stopped for maintenance.
The rotary ring 11 is a precipitation ring, the precipitation ring is formed by processing round steel through a lathe, a milling machine, a drilling machine and the like, the upper part of the inner circular surface of the precipitation ring is provided with a positioning ring 13 installation position, the lower part of the inner circular surface is provided with a countercurrent ring 10 installation position, the lower end surface of the inner circular surface is provided with uniformly distributed locking through holes connected with the labyrinth movable ring 13, and screws penetrate through the uniformly distributed locking through holes and are fixedly connected with the labyrinth movable ring 13; the lower part of the outer circle of the sedimentation ring is provided with a transverse boss, the end surface of the transverse boss is provided with through holes which are uniformly distributed and locked with the bearing sleeve 5 through screw connection, the upper end surface of the sedimentation ring is provided with a downward concave powder throwing groove 24, and the upper end surface of the sedimentation ring outside the powder throwing groove 24 is adhered with an O-shaped sealing ring outside the lower end surface of the labyrinth ring 13; the upper part of the outer circle of the sedimentation ring is provided with two air holes 29, the air holes 29 are communicated with the powder throwing groove 24, and when in maintenance, air 29 is blown in from one air hole, and dust is discharged from the other air hole 29; or the dust in the powder throwing groove 24 is discharged from the air holes 29 under the centrifugal effect in the rotation process of the sedimentation ring.
The remainder was the same as in example 1.
Claims (9)
1. The vibration ball type labyrinth dustproof grinding roller device is characterized in that a shaft, a supporting component, a dustproof component and a transmission component are sequentially sleeved on the shaft from top to bottom,
the transmission assembly comprises a grinding roller, a bearing sleeve, a first roller bearing, a second roller bearing and a lower gland, wherein the bearing sleeve is sleeved on a shaft through the first roller bearing and the second roller bearing, a pressing sleeve is arranged between the first roller bearing and the second roller bearing and sleeved on the shaft, the upper end face of the pressing sleeve props against the lower end face of an inner ring of the first roller bearing, the lower end face of the pressing sleeve props against the upper end face of an inner ring of the second roller bearing, a shaft tail positive and negative nut is arranged on the lower end face of the second roller bearing, the shaft tail positive and negative nut compresses the lower end face of the inner ring of the second roller bearing, the lower gland is arranged below the shaft tail positive and negative nut and is fixed on the bearing sleeve through a screw, and the grinding roller is sleeved on the outer ring of the bearing sleeve and locked by the grinding roller negative nut;
the dustproof assembly comprises a labyrinth stationary ring, a labyrinth movable ring and a rotary ring, wherein the rotary ring is fixed on the upper end face of a bearing sleeve of the transmission assembly, a countercurrent ring is arranged in the middle of an inner ring of the rotary ring, a step is arranged on the upper part of the inner ring of the rotary ring, a positioning ring is arranged on the step, the labyrinth movable ring is arranged on the throwing ring, the labyrinth stationary ring is arranged above the labyrinth movable ring and is matched with the labyrinth movable ring, a multi-layer labyrinth gap is formed between the matching faces, vibration beads are arranged in the labyrinth gap, a powder throwing groove is formed between the lower end face of the labyrinth movable ring and the upper end face of the rotary ring, a leakage hole is further formed in the lower end face of the labyrinth movable ring, one end of the leakage hole is communicated with the labyrinth gap, and the other end of the leakage hole is communicated with the powder throwing groove;
the supporting assembly comprises a supporting sleeve and a cross arm shaft, the supporting sleeve is sleeved on the shaft, the cross arm shaft is fixed on the supporting sleeve, and a positive nut and a negative nut of the shaft head are arranged at the top of the supporting sleeve.
2. A vibrating bead type labyrinth dustproof grinding roller device as defined in claim 1, wherein,
the powder throwing groove is provided with vibration beads, and is a concave groove arranged on the lower end face of the labyrinth movable ring upwards or a concave groove arranged on the upper end face of the rotary ring downwards.
3. A vibrating bead type labyrinth dustproof grinding roller device as defined in claim 1, wherein,
the labyrinth stationary ring is characterized in that a bead adding hole is formed in the upper end face of the labyrinth stationary ring, and the bead adding hole is communicated with the labyrinth gap.
4. A vibrating bead type labyrinth dustproof grinding roller device as defined in claim 1, wherein,
the labyrinth movable ring and the labyrinth static ring are mutually matched with the toothed ring of the outer ring to form a U-shaped overflow groove;
the lower end face of the labyrinth movable ring and the upper end face of the rotary ring are provided with a powder throwing groove or a powder throwing gap, and the powder throwing groove, the powder throwing gap and the powder throwing groove are communicated.
5. A vibrating bead type labyrinth dustproof grinding roller device as defined in claim 1, wherein,
the side surface of the outer circle of the lower end of the labyrinth moving ring or the side surface of the outer circle of the rotating ring is provided with a bead adding hole or an air hole, and the bead adding hole or the air hole is communicated with the powder throwing groove.
6. A vibrating bead type labyrinth dustproof grinding roller device as defined in claim 1, wherein,
the vibration beads are made of ceramic, silicon carbide or glass materials, and the diameter of the vibration beads is larger than that of the leakage holes.
7. A vibrating bead type labyrinth dustproof grinding roller device as defined in claim 1, wherein,
the bearing sleeve is formed by processing round steel through a lathe, a milling machine and a drilling machine, the outer circular surface is a conical bearing sleeve with a small upper part and a large lower part, the upper end and the lower end of the inner circular surface are provided with mounting positions of a first roller bearing and a second roller bearing or copper sleeves, and the outer circular surface of the bearing sleeve is also provided with an anti-rotation key for preventing the grinding roller from slipping with the bearing sleeve in the production process; the upper end surface of the bearing sleeve is provided with a plurality of equal tooth holes which are correspondingly connected with the through holes of the swivel, the lower end surface of the bearing sleeve is provided with a plurality of equal tooth holes which are correspondingly connected with the locking through holes of the lower gland, and the conical outer upper end of the bearing sleeve is provided with outer teeth which are matched with the inner teeth of the grinding roller counter nut;
the grinding roller is formed by casting manganese alloy steel and finish machining by a vertical lathe, and the inner circle of the grinding roller is formed by matching a conical surface with a large upper part and a small lower part with a conical bearing sleeve with a large upper part;
the shaft is formed by processing round steel through a numerical control lathe, a milling machine, a drilling machine and heat treatment, the lower part of the shaft is provided with two step bearing inner ring installation positions for installing a first roller bearing and a second roller bearing, and the step at the tail part of the shaft is provided with positive and negative lock nut outer teeth; the middle part of the shaft is provided with a static ring positive and negative tooth position; the upper part of the shaft is provided with a conical supporting sleeve installation position with a small upper part and a large lower part, and the top of the shaft is provided with a supporting sleeve positive and negative nut locking outer tooth.
8. A vibrating bead type labyrinth dustproof grinding roller device as defined in claim 1, wherein,
the labyrinth static ring is formed by processing metals such as round steel through a numerical control lathe, a milling machine and a drilling machine, the upper end of the labyrinth static ring is provided with an inner tooth, the upper end surface of the labyrinth static ring is provided with a bead adding hole for adding vibration beads into a labyrinth gap, and the bead adding hole is blocked by a screw plug; the lower end face of the labyrinth stationary ring is provided with a plurality of annular sealing teeth with certain intervals and certain heights, and grooves matched with the annular sealing teeth of the labyrinth movable ring are arranged at the front and back of the root of the annular sealing teeth; the outer upper end of the labyrinth static ring is provided with a plurality of axially semicircular notch openings which are uniformly distributed;
the labyrinth moving ring is formed by processing metals such as round steel through a lathe, a milling machine, a drilling machine, a surface grinding machine and a surface grinding machine, the upper end of the labyrinth moving ring is provided with a plurality of annular sealing teeth with certain intervals and certain heights, steps are arranged between the roots of the annular sealing teeth, the upper end face of each step is high and low, and the lower end face of each step is a groove; two O-shaped sealing rings are arranged on the outer side of the lower end face of the labyrinth moving ring, which is matched with the rotating ring.
9. A vibrating bead type labyrinth dustproof grinding roller device as defined in claim 1, wherein,
the swivel is a throwing ring or a sedimentation ring;
the sedimentation ring is formed by processing round steel through a lathe, a milling machine and a drilling machine, the upper part of the inner circular surface of the sedimentation ring is provided with a positioning ring installation position, the lower part of the inner circular surface is provided with a counter-current ring installation position, the lower end surface of the inner circular surface is provided with uniformly distributed locking through holes connected with a labyrinth moving ring, and screws penetrate through the uniformly distributed locking through holes and are fixedly connected with the labyrinth moving ring; the lower part of the outer circle of the sedimentation ring is provided with a transverse boss, the end surface of the transverse boss is provided with through holes which are uniformly distributed and are connected with and locked with the bearing sleeve through bolts, the upper end surface of the sedimentation ring is provided with a downward concave powder throwing groove, and the upper end surface of the sedimentation ring outside the powder throwing groove is attached to an O-shaped sealing ring outside the lower end surface of the labyrinth ring; the upper part of the outer circle of the precipitation ring is provided with two air holes which are communicated with the powder throwing groove;
the ring is formed by processing round steel through a lathe, a milling machine and a drilling machine, the upper part of the ring surface in the ring is provided with a positioning ring installation position, the lower part of the inner circular surface is provided with a counter-current ring installation position, the lower end surface of the inner circular surface is provided with uniformly distributed locking through holes connected with a labyrinth moving ring, and a screw penetrates through the uniformly distributed locking through holes to be fixedly connected with the labyrinth moving ring; the lower part of the ring is provided with a horizontal boss, the end face of the horizontal boss is provided with through holes which are uniformly distributed and are locked with the bearing sleeve through screw connection, a plurality of uniformly distributed powder throwing grooves are milled on the end face of the ring which is bonded with the outer ring of the lower end face of the labyrinth moving ring, or a powder throwing gap is arranged on the lower end face of the ring which is connected with the outer ring of the labyrinth moving ring, and the outer ring of the ring which is connected with the outer ring of the labyrinth moving ring is provided with a boss for enclosing the lower end face of the outer ring of the labyrinth moving ring.
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| CN108543578A (en) * | 2018-05-15 | 2018-09-18 | 桂林端面油封科技有限公司 | A kind of dust-proof grinding roller device of Raymond mill |
| CN210252504U (en) * | 2019-05-31 | 2020-04-07 | 桂林端面油封科技有限公司 | Dustproof grinding roller device of vibration pearl formula maze |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1172127A (en) * | 1997-06-27 | 1999-03-16 | Nippon Seiko Kk | Rolling bearing incorporating one-way clutch |
| CN1586725A (en) * | 2004-08-27 | 2005-03-02 | 北京国电龙源环保工程有限公司 | Wet ball mill inlet radial sealing device |
| CN102549279A (en) * | 2009-10-05 | 2012-07-04 | 谢夫勒科技股份两合公司 | Rolling bearing, in particular radial needle bearing having a labyrinth seal |
| CN203730954U (en) * | 2013-12-23 | 2014-07-23 | 济南重工股份有限公司 | Ball mill feeding seal device |
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