CN211082367U - Axial sealing device for series fans of cement kiln - Google Patents
Axial sealing device for series fans of cement kiln Download PDFInfo
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- CN211082367U CN211082367U CN201921467437.0U CN201921467437U CN211082367U CN 211082367 U CN211082367 U CN 211082367U CN 201921467437 U CN201921467437 U CN 201921467437U CN 211082367 U CN211082367 U CN 211082367U
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Abstract
The utility model provides a cement kiln series fan axial sealing device. The axial sealing device of the cement kiln series fan comprises an external flange ring, a sealing ring combination, a sealing pressure plate, a compression bolt, a casing rear side plate, a fixing mechanism, a bearing seat and a fan main shaft, wherein the fan main shaft is rotationally connected to the bearing seat, the external flange ring is welded on the outer side wall of the casing rear side plate, the sealing ring combination is abutted against the casing rear side plate, the sealing pressure plate is fixedly connected to the external flange ring, the sealing ring combination is fixedly connected to the casing rear side plate through the compression bolt, and the sealing ring combination is sleeved on the fan main shaft; the sealing ring combination comprises a sealing base plate and a sealing aluminum plate. The utility model provides a cement kiln series fan axial seal device has can be under the prerequisite of not dismantling the fan, convenient, swiftly dismantle and change "sealed backing plate" and "seal pressing plate"'s advantage.
Description
Technical Field
The utility model relates to a sealed technical field especially relates to a cement kiln series fan axial sealing device.
Background
At present, the axial seal of domestic cement kiln series fans is generally characterized in that a traditional structure of a circular ring seal cushion plate and a circular ring seal pressing plate is adopted, and the circular ring seal cushion plate is sleeved on a main shaft of the fan and fixed on a rear side plate of a casing. After the inner hole of the sealing base plate is abraded, a large amount of dust can be discharged outwards, the fan impeller needs to be detached and then installed again during replacement, and the structure is very troublesome and has very large workload. Many cement manufacturing enterprises can not be shut down because of axial seal became invalid specially, go to dismantle the fan and change sealed backing plate, let by the dust random toward discharging outward promptly, polluted the environment, wasted the resource, made the healthy of production workman receive serious harm again.
In order to fundamentally eliminate the phenomenon, a fan manufacturer needs to develop a novel axial sealing system which is convenient to disassemble and assemble to solve the problem.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problem, an embodiment of the present invention provides a cement kiln series fan axial sealing device, which can conveniently and quickly disassemble and replace a "sealing pad" and a "sealing pressing plate" without disassembling the fan.
The utility model provides a cement kiln series fan axial seal device includes: the fan main shaft is rotatably connected to the bearing seat, the external flange ring is welded to the outer side wall of the rear side plate of the shell, the sealing ring combination abuts against the rear side plate of the shell, the sealing pressing plate is fixedly connected to the external flange ring, and the sealing ring combination is fixedly connected to the rear side plate of the shell through the compression bolt; the sealing ring combination is sleeved on the fan main shaft; the sealing ring combination comprises a sealing base plate and a sealing aluminum plate, the sealing base plates and the sealing aluminum plate are all sleeved on the fan main shaft, and through holes are formed in the external flange ring, the sealing ring combination, the sealing pressing plate, the shell rear side plate, the sealing aluminum plate and the sealing base plate; and the fixing mechanism is inserted in the through hole.
Preferably, the fixing mechanism comprises a hexagon nut and a hexagon bolt, and the hexagon bolt is inserted into the through hole and fixes the sealing ring in a combined manner through the hexagon nut.
Preferably, the sealing gasket plate material in the sealing ring combination is made of fluororubber.
Preferably, the inner side of the sealing ring combination is tightly attached to the rear side plate of the casing, and the outer side of the sealing ring combination is pressed and fixed by the sealing pressing plate.
Preferably, the sealing base plates and the sealing aluminum plates in the sealing ring combination are arranged in a staggered mode, and each group of sealing base plates and each group of sealing aluminum plates are arranged at an angle of 90 degrees.
Preferably, lubricating oil is arranged at the joint of the fan main shaft and the bearing seat.
Compared with the prior art, the utility model provides a cement kiln series fan axial sealing device has following beneficial effect:
in order to conveniently and quickly disassemble and replace a sealing base plate and a sealing pressure plate on the premise of not disassembling a fan, the sealing base plate and the sealing pressure plate are designed into semicircular ring structures which are cut along the diameter direction. Then 4 equant holes are drilled on the same radius of each semicircular ring, and then the semicircular rings are connected by bolts to form a sealing ring group, and the size of the inner hole can be adjusted according to different shaft diameters, so that the fans with different shaft diameters can be conveniently replaced and used.
Drawings
FIG. 1 is an assembly view of a series fan axial seal arrangement for a cement kiln;
FIG. 2 is a schematic view of the outer flange ring of FIG. 1;
FIG. 3 is a schematic structural view of the seal ring assembly shown in FIG. 1;
FIG. 4 is a schematic view of the construction of the fluororubber gasket shown in FIG. 1;
FIG. 5 is a schematic structural view of the aluminum sealing plate shown in FIG. 1;
fig. 6 is a schematic structural view of the sealing platen shown in fig. 1.
Reference numbers in the figures: 1. the fan comprises an external flange ring, 2, a sealing ring combination, 3, a sealing pressure plate, 4, a compression bolt, 5, a shell rear side plate, 6, a sealing aluminum plate, 7, a sealing base plate, 8, a fixing mechanism, 81, a hexagon nut, 81, a hexagon bolt, 9, a bearing seat, 10 and a fan main shaft.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments.
Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, wherein fig. 1 is an assembly view of a fan axial sealing device of a cement kiln series; FIG. 2 is a schematic view of the outer flange ring of FIG. 1; FIG. 3 is a schematic structural view of the seal ring assembly shown in FIG. 1; FIG. 4 is a schematic view of the construction of the fluororubber gasket shown in FIG. 1; FIG. 5 is a schematic structural view of the aluminum sealing plate shown in FIG. 1; fig. 6 is a schematic structural view of the sealing platen shown in fig. 1. The cement kiln series fan axial sealing device comprises: the fan comprises an external flange ring 1, a sealing ring combination 2, a sealing pressure plate 3, a compression bolt 4, a shell rear side plate 5, a fixing mechanism 8, a bearing seat 9 and a fan main shaft 10.
In a specific implementation process, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, a bearing seat 9, a fan spindle 10, an external flange ring 1, a sealing ring assembly 2, a sealing pressure plate 3, a pressure bolt 4 and a casing rear side plate 5, wherein the fan spindle 10 is rotatably connected to the bearing seat 9, the external flange ring 1 is welded to an outer side wall of the casing rear side plate 5, the sealing ring assembly 2 abuts against the casing rear side plate 5, the sealing pressure plate 3 is fixedly connected to the external flange ring 1, and the sealing ring assembly 2 is fixedly connected to the casing rear side plate 5 through the pressure bolt 4; the sealing ring assembly 2 is sleeved on the fan main shaft 10; sealing ring combination 2 includes sealing pad board 7 and sealing aluminum plate 6, fan main shaft 10 is located to a plurality of sealing pad boards 7 and sealing aluminum plate 6 all overlap, and outside flange ring 1, sealing ring combination 2, sealing clamp plate 3, casing posterior lateral plate 5, the through-hole has all been seted up on sealing aluminum plate 6 and the sealing pad board 7, sealing ring combination 2 inboard pastes tightly with casing posterior lateral plate 5, and sealing ring combination 2's the outside is compressed tightly fixedly by sealing clamp plate 3, the welding of outside flange ring 1 is in 5 outsides of casing posterior lateral plate, the M12 bolt hole and the casing of the 8 equipartitions of higher authority join in marriage the brill, the tapping. The sealing ring combination 2 is pushed against the rear side plate 5 of the shell, two semicircular sealing pressing plates 3 are fixed on the outer flange ring 1 by bolts at the outer side, and the sealing ring combination 2 is pressed tightly.
Wherein, fixing mechanism 8 inserts and locates in the through-hole, and fixing mechanism 8 includes hexagon nut 81 and hexagon bolt 82, and hexagon bolt 82 inserts and locates in the through-hole and fixes sealing ring combination 2 through hexagon nut 81, connects a plurality of sealing aluminum plate 6 and sealing backing plate 7 fixedly through fixing mechanism 8.
The sealing pad 7 in the sealing ring assembly 2 is made of fluororubber, which has excellent high temperature resistance, high chemical stability, weather resistance, oxidation resistance, oil resistance and very low air permeability, and is an excellent sealing material.
The sealing base plates 7 and the sealing aluminum plates 6 in the sealing ring assembly 2 are arranged in a staggered mode, each group of sealing base plates 7 and each group of sealing aluminum plates 6 are arranged at an angle of 90 degrees, the processed annular sealing base plates 7 and the processed annular sealing aluminum plates 6 are cut along the diameter direction, then the sealing base plates are sleeved on a fan main shaft at an angle of 90 degrees according to the sequence of 'one layer of sealing aluminum plates 6' + 'one layer of fluororubber sealing base plates 7' + 'one layer of sealing aluminum plates 6', and the sealing aluminum plates are assembled by bolts to form a set of sealing ring assembly 2.
Lubricating oil is arranged at the joint of the fan main shaft 10 and the bearing seat 9, so that the friction force between the fan main shaft 10 and the bearing seat 9 is reduced, and the fan main shaft 10 can rotate better;
referring to fig. 1 and 2, firstly welding an 'external flange ring 1' outside a rear side plate 5 of a casing, and drilling and tapping 8 uniformly distributed M12 bolt holes on the external flange ring and the casing; referring to fig. 3, 4, 5 and 6, the processed annular sealing cushion plate 7 and the sealing aluminum plate 6 are cut along the diameter direction, and then sleeved on the main shaft of the fan at 90 degrees in the sequence of ' one layer of sealing aluminum plate 6 ' + ' one layer of fluororubber sealing cushion plate 7 ' + ' one layer of sealing aluminum plate 6 ', and assembled by bolts to form a set of sealing ring assembly 2 '; the sealing ring combination 2 is pushed against a rear side plate 5 of the shell, two semicircular sealing pressing plates 3 are fixed on the outer flange ring 1 by bolts at the outer side, and the sealing ring combination 2 is pressed tightly, so that the sealing base plate 7 can be conveniently disassembled and replaced on the premise of not disassembling the fan impeller;
the inner hole of the sealing ring combination 2 is customized according to the axial diameter of the fan, so that the device is suitable for axial sealing of various fans.
The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention can be used in other related technical fields, directly or indirectly, or in the same way as the present invention.
Claims (6)
1. A cement kiln series fan axial sealing device is characterized by comprising:
the fan rear side plate sealing device comprises a bearing seat (9), a fan main shaft (10), an external flange ring (1), a sealing ring combination (2), a sealing pressing plate (3), a compression bolt (4) and a shell rear side plate (5), wherein the fan main shaft (10) is rotatably connected to the bearing seat (9), the external flange ring (1) is welded on the outer side wall of the shell rear side plate (5), the sealing ring combination (2) abuts against the shell rear side plate (5), the sealing pressing plate (3) is fixedly connected to the external flange ring (1), and the sealing ring combination (2) is fixedly connected to the shell rear side plate (5) through the compression bolt (4);
the sealing ring assembly (2), the sealing ring assembly (2) is sleeved on the fan main shaft (10); the sealing ring combination (2) comprises a sealing base plate (7) and a sealing aluminum plate (6), the sealing base plates (7) and the sealing aluminum plate (6) are all sleeved on the fan main shaft (10), and through holes are formed in the external flange ring (1), the sealing ring combination (2), the sealing pressing plate (3), the shell rear side plate (5), the sealing aluminum plate (6) and the sealing base plate (7);
the fixing mechanism (8) is inserted into the through hole.
2. The axial sealing device of a cement kiln series fan as claimed in claim 1, wherein the fixing mechanism (8) comprises a hexagon nut (81) and a hexagon bolt (82), and the hexagon bolt (82) is inserted into the through hole and fixes the sealing ring assembly (2) through the hexagon nut (81).
3. The cement kiln series fan axial sealing device as recited in claim 1, characterized in that the sealing pad (7) in the sealing ring assembly (2) is made of fluororubber.
4. The axial sealing device of the fan of the cement kiln series according to the claim 1, characterized in that the inner side of the sealing ring combination (2) is tightly attached to the rear side plate (5) of the casing, and the outer side of the sealing ring combination (2) is pressed and fixed by the sealing pressure plate (3).
5. The axial sealing device of a cement kiln series fan, according to the claim 1, is characterized in that the sealing backing plates (7) and the sealing aluminum plates (6) in the sealing ring combination (2) are arranged in a staggered way, and each group of sealing backing plates (7) and sealing aluminum plates (6) are arranged at 90 degrees to each other.
6. The cement kiln series fan axial sealing device according to claim 1, characterized in that the joint of the fan main shaft (10) and the bearing seat (9) is provided with lubricating oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921467437.0U CN211082367U (en) | 2019-09-05 | 2019-09-05 | Axial sealing device for series fans of cement kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921467437.0U CN211082367U (en) | 2019-09-05 | 2019-09-05 | Axial sealing device for series fans of cement kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211082367U true CN211082367U (en) | 2020-07-24 |
Family
ID=71642844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921467437.0U Active CN211082367U (en) | 2019-09-05 | 2019-09-05 | Axial sealing device for series fans of cement kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211082367U (en) |
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2019
- 2019-09-05 CN CN201921467437.0U patent/CN211082367U/en active Active
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