CN210859811U - Sealing device for grinding roll shaft and grinding machine shell of vertical grinding machine - Google Patents
Sealing device for grinding roll shaft and grinding machine shell of vertical grinding machine Download PDFInfo
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- CN210859811U CN210859811U CN201922016812.6U CN201922016812U CN210859811U CN 210859811 U CN210859811 U CN 210859811U CN 201922016812 U CN201922016812 U CN 201922016812U CN 210859811 U CN210859811 U CN 210859811U
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Abstract
The utility model relates to the technical field of cement production and processing equipment, in particular to a sealing device for a grinding roll shaft and a grinding machine shell of a vertical grinding machine, which comprises a shaft sleeve, a mounting plate, an upper sealing plate, a lower sealing plate and a side sealing plate; the mounting plate is perpendicular to the axial direction of the shaft sleeve and is integrally connected to one end of the shaft sleeve, and a mounting hole which is communicated with the shaft sleeve and coaxial with the shaft sleeve is formed in the mounting plate; the upper sealing plate and the lower sealing plate are respectively and fixedly connected to the top end and the bottom end of the mounting plate in an inclined manner, and are parallel to each other; the side sealing plates are provided with two side sealing plates, one ends of the two side sealing plates are integrally connected with the bottom surface of the upper sealing plate, and the other ends of the two side sealing plates are integrally connected with the top surface of the lower sealing plate; a sealing frame body is enclosed among the side sealing plates, the upper sealing plate, the lower sealing plate and the mounting plate; wear-resisting plates are detachably arranged on the outer walls of the side sealing plates, the upper sealing plate and the lower sealing plate; the utility model has the advantages of good sealing effect and easy replacement.
Description
Technical Field
The utility model relates to a technical field of cement manufacture processing equipment, concretely relates to seal device of vertical mill roller and mill casing.
Background
The vertical roller mill, called vertical mill for short, is mainly used for grinding mineral materials such as cement raw materials, raw coal, slag and the like. On one hand, the raw materials treated by the vertical mill generally contain certain moisture, and the materials need to be dried while being ground; therefore, for materials with high moisture content, the vertical mill grinding system needs to be specially equipped with a heat source for providing hot air at about 350 ℃ to dry the materials. On the other hand, the fineness of the product ground by the vertical mill is generally higher than 350m2And the product fineness is extremely fine, and the whole vertical mill system needs to be kept in a negative pressure state so as to be convenient for collecting the product through a bag type dust collector. The two characteristics determine that if unheated air leaks into the vertical mill system, the production cost such as heat consumption, power consumption and the like of the product of unit mass is increased. Therefore, the problem of air leakage is avoided in all production links and equipment of the vertical mill system.
When the vertical mill works, the material layer fluctuates to cause the vertical mill grinding roller to swing up and down during working, so a certain space must be reserved between the rocker arm of the vertical mill and the mill shell to avoid the rocker arm and the vertical mill shell from colliding to damage the rocker arm and the shell in the vibration process of the grinding roller. To avoid external unheated ambient air from leaking into the vertical mill, the space left by this is sealed.
Patent document No. CN 202199404U discloses a double-layer sealing structure for a vertical grinding rocker arm and a housing, which includes a first sealing element disposed in a space between the vertical grinding rocker arm and a mill housing, wherein a first fixing plate is mounted on a sealing surface on one side of the first sealing element, a second fixing plate is mounted on a sealing surface on the other side of the first sealing element, a sealing surface of the second sealing element is tightly attached to the other side of the second fixing plate, the second fixing plate is sandwiched between the first sealing element and the second sealing element, a pressing plate is disposed outside a sealing surface on the other side of the second sealing element, the second sealing element is bent towards one side of the pressing plate, the bent portion is in parallel contact with the surface of the vertical grinding rocker arm, the pressing plate presses the bent second sealing element, and the second fixing plate, the first sealing element and the first fixing plate are fixed on an arc-shaped plate between the vertical. The double-layer sealing structure can reduce the air leakage rate between the vertical mill rocker arm and the shell.
However, in the above patent documents, the service life of the sealing structure is limited, and after the vertical mill runs for a long time, each sealing element is difficult to avoid abrasion and still needs to be replaced periodically, but each sealing element and the sealing plate are pressed against each other, which is inconvenient to replace; gaps still exist among the sealing elements and the sealing plates, the vertical mill rocker arm and the shell, and the sealing effect is poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sealed effectual and easily changed found sealing device who grinds roller axle and mill casing.
The purpose of the utility model is realized through the following technical scheme:
a sealing device for a grinding roll shaft and a grinding machine shell of a vertical grinding machine comprises a shaft sleeve, a mounting plate, an upper sealing plate, a lower sealing plate and a side sealing plate; the mounting plate is perpendicular to the axial direction of the shaft sleeve and is integrally connected to one end of the shaft sleeve, and a mounting hole which is communicated with the shaft sleeve and coaxial with the shaft sleeve is formed in the mounting plate; the upper sealing plate and the lower sealing plate are respectively and fixedly connected to the top end and the bottom end of the mounting plate in an inclined manner, and are parallel to each other; the side sealing plates are provided with two side sealing plates, one ends of the two side sealing plates are integrally connected with the bottom surface of the upper sealing plate, and the other ends of the two side sealing plates are integrally connected with the top surface of the lower sealing plate; a sealing frame body is enclosed among the side sealing plates, the upper sealing plate, the lower sealing plate and the mounting plate; the outer walls of the side sealing plates, the upper sealing plate and the lower sealing plate are detachably provided with wear-resisting plates.
By adopting the technical scheme, the grinding roller shaft of the vertical grinding roller is inserted into the shaft sleeve from the mounting hole of the mounting plate, so that the grinding roller is positioned on one side of the mounting plate, which is far away from the shaft sleeve; insert the rocking arm in the axle sleeve and with mounting panel fixed connection from the one side of keeping away from the mounting panel, fix the one end of keeping away from the grinding roller with the grinding roller axle on the rocking arm, realize the utility model discloses an installation. When the grinding machine operates, the grinding roller is positioned in the shell, the sealing device of the utility model is positioned in the space between the shell of the grinding machine and the rocker arm, the sealing frame enclosed by the upper sealing plate, the lower sealing plate and the side sealing plates plays a sealing role for the opening of the shell into which the grinding roller extends, and the whole sealing device is fixed on the rocker arm and can swing up and down along with the rocker arm; the upper sealing plate and the lower sealing plate which are obliquely arranged can be matched with the swing of the rocker arm, and a better sealing effect is achieved on the space between the mill shell and the rocker arm. The wear-resisting plate plays a further role in wear-resisting sealing for the sealing frame formed by the upper sealing plate, the lower sealing plate and the side sealing plate, and the service life of the utility model is prolonged; the wear-resisting plate can be dismantled and set up, is convenient for directly pull it down, has the convenient advantage of change.
Preferably, the periphery of the shaft sleeve is sleeved with a wear-resistant ceramic sleeve.
Through adopting above-mentioned technical scheme, the effect of wear-resisting protection is played to the axle sleeve to wear-resisting ceramic cover, has improved the life of axle sleeve. Meanwhile, the sealing device can be matched with the shaft sleeve to further seal the hot air space in the shaft sleeve.
Preferably, the shaft sleeve is uniformly provided with insertion grooves, and the insertion grooves extend along the axial direction of the shaft sleeve and extend out from one end far away from the mounting plate; the inner wall of the wear-resistant ceramic sleeve is integrally provided with an inserting strip, and the inserting strip can be inserted into the inserting groove in a matching mode.
Through adopting above-mentioned technical scheme, through the cartridge strip matching insert cartridge inslot to the cooperation gluing agent is fixed wear-resisting ceramic sheathing on the axle sleeve, improves the joint strength between wear-resisting ceramic sheathing and the axle sleeve.
Preferably, the wear-resisting plates on each side sealing plate comprise a plurality of wear-resisting plates which are sequentially connected end to end.
Preferably, the wear-resisting plates on the upper sealing plate and the lower sealing plate respectively comprise a plurality of wear-resisting plates which are sequentially connected end to end.
Through adopting above-mentioned technical scheme, because the whole size of side seal board is great, if the antifriction plate is one, then can change inconveniently. The wear-resisting plate is split into a plurality of blocks, one or more blocks which are seriously worn can be detached and replaced according to actual conditions, so that the cost is saved, and the wear-resisting plate is convenient to replace.
Preferably, the wear-resisting plate is detachably connected with the side sealing plate, the upper sealing plate and the lower sealing plate through bolts.
Through adopting above-mentioned technical scheme, the change of the antifriction plate of being convenient for.
Preferably, the diameter of the mounting hole is smaller than the inner diameter of the shaft sleeve.
Through adopting above-mentioned technical scheme, make the rocking arm fix in the axle sleeve, in the grinding roller axle runs through and inserts the rocking arm behind the mounting hole, make rocking arm and grinding roller axle parcel in the utility model discloses in, reduced from grinding roller axle and the rocking arm to the interior condition of leaking out of casing, improved sealed effect.
Preferably, the mounting plate is provided with bolt holes uniformly formed around the mounting hole.
Through adopting above-mentioned technical scheme for carry out demountable installation, easy to assemble and dismantlement with the rocking arm.
Preferably, a circle of sealing groove is formed in the inner wall, far away from one end of the mounting plate, of the shaft sleeve, and a sealing steel ring is arranged in the sealing groove.
Through adopting above-mentioned technical scheme, seal groove and the cooperation of sealing steel ring seal between the tip of keeping away from the mounting panel with the axle sleeve and the rocking arm, can prevent that wind from leaking into in the casing from here, have further improved sealed effect.
Preferably, the upper sealing plate, the lower sealing plate and the side sealing plate are connected with high-strength canvas covers at ends far away from the shaft sleeve.
Through adopting above-mentioned technical scheme, the canvas that excels in covers the effect that plays leak protection wind, can prevent that outside wind from getting into in the casing from the gap between last shrouding, lower shrouding and side shrouding and the vertical mill casing, further improved the leak protection wind effect, sealed effectual.
To sum up, the utility model discloses following beneficial effect has:
(1) the rocker arm and the grinding roller shaft are inserted and sleeved in the shaft sleeve of the utility model through the matching of the shaft sleeve, the mounting plate and the four seal plates, the four seal plates seal the opening of the shell, the shaft sleeve and the mounting plate seal the grinding roller shaft, the wind outside the shell can be effectively prevented from entering the shell from the gap between the grinding roller shaft and the shell, and the sealing effect is good;
(2) the wear-resisting plates are detachably arranged on the side sealing plates, the upper sealing plate and the lower sealing plate, so that the service life of each sealing plate can be prolonged, and the sealing plates have the advantage of convenience in replacement;
(3) the wear-resistant ceramic sleeve sleeved on the shaft sleeve can play a role in sealing and protecting the shaft sleeve, so that the service life of the shaft sleeve is prolonged, and the sealing effect of the shaft sleeve on the grinding roller shaft is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention in a use state;
FIG. 2 is a schematic view of the assembly structure of the present invention with a rocker arm and a grinding roller;
FIG. 3 is a schematic view of the assembly structure of the present invention;
FIG. 4 is a schematic sectional view of the present invention in use;
fig. 5 is an enlarged schematic view of a portion a in fig. 4.
Reference numerals: 101. a mill housing; 102. a rocker arm; 103. a grinding roll shaft; 104. grinding the roller; 1. a shaft sleeve; 11. inserting the slots; 12. a sealing groove; 13. sealing the steel ring; 2. mounting a plate; 21. mounting holes; 22. bolt holes; 3. an upper sealing plate; 4. a lower sealing plate; 5. a side sealing plate; 6. a wear plate; 7. a wear-resistant ceramic sleeve; 71. inserting the strip; 8. high-strength canvas cover.
Detailed Description
The present invention will be further described with reference to the following specific embodiments.
The utility model discloses a found sealing device of grinding roller axle and mill casing, as shown in FIG. 1, install on rocking arm 102 for space to between grinding roller axle 103 and the mill casing 101 seals.
As shown in fig. 2 and 3, the utility model discloses a shaft sleeve 1 of steel material, mounting panel 2, go up shrouding 3, lower shrouding 4 and side seal board 5. The mounting plate 2 is a square plate and is vertical to the axial direction of the shaft sleeve 1, and the mounting plate 2 and the shaft sleeve 1 are welded into a whole. The mounting plate 2 is provided with a mounting hole 21 which is communicated with the shaft sleeve 1 and coaxial with the shaft sleeve for inserting the grinding roller shaft 103. Go up shrouding 3 and down shrouding 3 the slope welding respectively on the top and the bottom of mounting panel 2, and go up shrouding 3 and be parallel to each other with lower shrouding 4. The side seal board 5 is provided with two, and two side seal boards 5 are parallel to each other and one end all welds in 3 bottom surfaces of last shrouding, the other end all welds 4 top surfaces of shrouding under, makes and encloses into sealed frame body between side seal board 5, last shrouding 3, lower shrouding 4 and the mounting panel 2 for seal the space between mill casing 101 and grinding roller axle 103.
As shown in fig. 4 and 5, in order to make the rocker arm 102 drive the grinding roller 104 to swing, the sealing frame can better seal the space between the mill housing 101 and the grinding roller shaft 103, the upper sealing plate 3 and the mounting plate 2 are arranged at an obtuse angle, that is, the upper sealing plate 3 and the lower sealing plate 4 are both inclined upward relative to the mounting plate 2 in a use state. In order to further improve the sealing effect, the ends, far away from the shaft sleeve 1, of the upper sealing plate 3, the lower sealing plate 4 and the side sealing plate 5 are connected with a high-strength canvas hood 8, the other end of the high-strength canvas hood 8 is fixedly connected to the inner wall of the mill shell 101, and the high-strength canvas hood 8 blocks gaps among the upper sealing plate 3, the lower sealing plate 4, the side sealing plate 5 and the mill shell 101, so that the external air leakage can be effectively prevented, and the sealing effect is good. In order to facilitate the disassembly and assembly of the high-strength canvas cover 8, one end of the upper sealing plate 3, the lower sealing plate 4 and the side sealing plate 5 is fixed at the end far away from the shaft sleeve 1, and the other end of the upper sealing plate, the lower sealing plate and the side sealing plate can be fixedly connected to the outer wall of the mill shell 101.
As shown in fig. 3, wear plates 6 are bolted to the outer walls of the side seal plates 5, the upper seal plate 3, and the lower seal plate 4 to prolong the service life of the side seal plates 5, the upper seal plate 3, and the lower seal plate 4. Wherein, there are three antifriction plates 6 on the side seal board 5, and three antifriction plates 6 are wear-resisting clad steel board to follow 5 outer walls of side seal board top-down butt joint end to end. Two wear-resisting plates 6 are arranged on the upper sealing plate 3 and the lower sealing plate 4. Compare in a monoblock antifriction plate 6, divide into a plurality of fritters with it, more conveniently change alone and the dismouting. In order to prolong the service life of the shaft sleeve 1, a wear-resistant ceramic sleeve 7 is sleeved on the periphery of the shaft sleeve 1. The specific installation mode of the wear-resistant ceramic sleeve 7 and the shaft sleeve 1 is as follows: the shaft sleeve 1 is uniformly provided with insertion grooves 11, and the insertion grooves 11 extend along the axial direction of the shaft sleeve 1 and extend out from one end far away from the mounting plate 2; the inner wall of the wear-resistant ceramic sleeve 7 is integrally provided with an insertion strip 71, the insertion strip 71 can be inserted into the insertion groove 11 in a matching mode, so that the wear-resistant ceramic sleeve 7 can be inserted outside the shaft sleeve 1 from one end, far away from the mounting plate 2, of the shaft sleeve 1, adhesive can be extruded into the shaft sleeve 1 along the insertion groove 11, and the wear-resistant ceramic sleeve 7 is firmly fixed on the shaft sleeve 1.
As shown in fig. 3, the diameter of the mounting hole 21 is smaller than the inner diameter of the sleeve 1, so that the insertion of the grinding roller shaft 103 is ensured, and the wind is prevented from flowing into the mill casing 101 from the sleeve 1, thereby achieving a sealing function. A circle of bolt holes 22 are uniformly formed in the periphery of the mounting hole 21 on the mounting plate 2 and used for fixing the rocker arm 102 and the mounting plate 2. In order to improve the sealing performance between the rocker arm 102 and the shaft sleeve 1, a circle of sealing groove 12 is formed in the inner wall of one end, away from the mounting plate 2, of the shaft sleeve 1, a sealing steel ring 13 is arranged in the sealing groove 12, one end, away from the mounting plate 2, of the shaft sleeve 1 is sealed, and external wind is prevented from entering the shaft sleeve 1 from the position and flowing into the mill shell 101.
The utility model discloses a dismouting principle specifically does:
inserting the rocker arm 102 into the mounting plate 2 from one end of the shaft sleeve 1 far away from the mounting plate 2, and fixing the rocker arm and the mounting plate by using bolts, so that the sealing device of the utility model is fixed on the rocker arm 102; the grinding roller shaft 103 is sequentially inserted into the mounting hole 21 and the shaft sleeve 1, sleeved into the rocker arm 102 and fixed with the rocker arm 102 through a bolt; the grinding roller 104 is controlled by the rocker arm 102, so that the grinding roller 104 enters the mill shell 101, a frame body formed by enclosing the upper seal plate 3, the lower seal plate 4 and the side seal plates 5 partially penetrates into the mill shell 101, and partially stays outside, a gap between the frame body and the mill shell 101 is sealed by the high-strength canvas cover 8, and the sealing of a space between the mill shell 101 and the grinding roller shaft 103 is realized;
after the wear-resisting plate is used for a period of time, when a certain wear-resisting plate or a plurality of wear-resisting plates 6 are seriously worn and need to be replaced, the bolt is screwed, and the wear-resisting plate 6 which needs to be replaced is independently dismounted for replacement; the wear-resistant ceramic sleeve 7 outside the shaft sleeve 1 plays a good role in sealing and protecting the shaft sleeve 1, the service life of the shaft sleeve 1 is prolonged, and the replacement frequency of the shaft sleeve 1 is greatly reduced.
The above-mentioned embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent laws and protection within the scope of the present invention.
Claims (10)
1. The utility model provides a found sealing device of mill roll axle and mill casing which characterized in that: comprises a shaft sleeve (1), a mounting plate (2), an upper sealing plate (3), a lower sealing plate (4) and a side sealing plate (5); the mounting plate (2) is perpendicular to the axial direction of the shaft sleeve (1) and is integrally connected to one end of the shaft sleeve (1), and a mounting hole (21) which is communicated with the shaft sleeve (1) and coaxial with the shaft sleeve (1) is formed in the mounting plate (2); the upper sealing plate (3) and the lower sealing plate (4) are respectively and fixedly connected to the top end and the bottom end of the mounting plate (2) in an inclined manner, and the upper sealing plate (3) and the lower sealing plate (4) are parallel to each other; two side seal plates (5) are arranged, one ends of the two side seal plates (5) are integrally connected with the bottom surface of the upper seal plate (3), and the other ends of the two side seal plates are integrally connected with the top surface of the lower seal plate (4); a sealing frame body is enclosed among the side sealing plates (5), the upper sealing plate (3), the lower sealing plate (4) and the mounting plate (2); the outer walls of the side sealing plates (5), the upper sealing plate (3) and the lower sealing plate (4) are all detachably provided with wear-resisting plates (6).
2. A vertical mill roll shaft to mill housing seal according to claim 1 characterised in that: the periphery of the shaft sleeve (1) is sleeved with a wear-resistant ceramic sleeve (7).
3. A vertical mill roll shaft to mill housing seal according to claim 2 characterised in that: the shaft sleeve (1) is uniformly provided with insertion grooves (11), and the insertion grooves (11) extend along the axial direction of the shaft sleeve (1) and extend out from one end far away from the mounting plate (2); the inner wall of the wear-resistant ceramic sleeve (7) is integrally provided with an inserting strip (71), and the inserting strip (71) can be inserted into the inserting groove (11) in a matching mode.
4. A vertical mill roll shaft to mill housing seal according to claim 1 characterised in that: each wear-resisting plate (6) on the side sealing plate (5) comprises a plurality of blocks which are sequentially connected end to end.
5. A vertical mill roll shaft to mill housing seal according to claim 1 characterised in that: the wear-resisting plates (6) on the upper sealing plate (3) and the lower sealing plate (4) comprise a plurality of blocks which are sequentially connected end to end.
6. A vertical mill roll shaft to mill housing seal according to claim 1 characterised in that: the wear-resisting plate (6) is detachably connected with the side sealing plate (5), the upper sealing plate (3) and the lower sealing plate (4) through bolts.
7. A vertical mill roll shaft to mill housing seal according to claim 1 characterised in that: the aperture of the mounting hole (21) is smaller than the inner diameter of the shaft sleeve (1).
8. A vertical mill roll shaft to mill housing seal according to claim 1 characterised in that: bolt holes (22) are uniformly formed in the periphery of the mounting hole (21) on the mounting plate (2).
9. A vertical mill roll shaft to mill housing seal according to claim 1 characterised in that: the inner wall of one end, far away from the mounting plate (2), of the shaft sleeve (1) is provided with a circle of sealing groove (12), and a sealing steel ring (13) is arranged in the sealing groove (12).
10. A vertical mill roll shaft to mill housing seal according to claim 1 characterised in that: and one ends of the upper sealing plate (3), the lower sealing plate (4) and the side sealing plate (5) far away from the shaft sleeve (1) are connected with high-strength canvas covers (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922016812.6U CN210859811U (en) | 2019-11-20 | 2019-11-20 | Sealing device for grinding roll shaft and grinding machine shell of vertical grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922016812.6U CN210859811U (en) | 2019-11-20 | 2019-11-20 | Sealing device for grinding roll shaft and grinding machine shell of vertical grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210859811U true CN210859811U (en) | 2020-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922016812.6U Active CN210859811U (en) | 2019-11-20 | 2019-11-20 | Sealing device for grinding roll shaft and grinding machine shell of vertical grinding machine |
Country Status (1)
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|---|---|
| CN (1) | CN210859811U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114289130A (en) * | 2021-12-31 | 2022-04-08 | 崇左南方水泥有限公司 | Dustproof dust pelletizing system of roll squeezer |
-
2019
- 2019-11-20 CN CN201922016812.6U patent/CN210859811U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114289130A (en) * | 2021-12-31 | 2022-04-08 | 崇左南方水泥有限公司 | Dustproof dust pelletizing system of roll squeezer |
| CN114289130B (en) * | 2021-12-31 | 2022-11-08 | 崇左南方水泥有限公司 | Dustproof dust pelletizing system of roll squeezer |
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