CN220523290U - Sealing structure for rake dryer and rake dryer - Google Patents
Sealing structure for rake dryer and rake dryer Download PDFInfo
- Publication number
- CN220523290U CN220523290U CN202321746617.9U CN202321746617U CN220523290U CN 220523290 U CN220523290 U CN 220523290U CN 202321746617 U CN202321746617 U CN 202321746617U CN 220523290 U CN220523290 U CN 220523290U
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- main shaft
- sealing ring
- sealing
- shell
- rake dryer
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- 238000007789 sealing Methods 0.000 title claims abstract description 145
- 238000012856 packing Methods 0.000 claims abstract description 38
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000000945 filler Substances 0.000 claims abstract description 23
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 18
- 238000001035 drying Methods 0.000 claims description 18
- 230000006835 compression Effects 0.000 claims description 15
- 238000007906 compression Methods 0.000 claims description 15
- 238000001125 extrusion Methods 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
The utility model relates to the technical field of dryers, in particular to a sealing structure for a rake dryer and the rake dryer, wherein the sealing structure for the rake dryer comprises a filler shell, a nitrogen seal shell and a mechanical sealing component, the filler shell is sleeved on a main shaft, and a filling port for online filling is formed in the filler shell; the plugging piece is arranged on the filler shell and is used for plugging the filling port. Through the setting of filler opening, be convenient for at the online filling filler of main shaft during operation, promote the convenience of filler filling, and can promote the leakproofness between filler casing and the main shaft. The main shaft is sealed once through the packing seal assembly, the main shaft is sealed again through the nitrogen seal assembly, meanwhile, the nitrogen seal assembly can reduce positive pressure gas to carry dust and enter the mechanical seal assembly, the mechanical seal assembly seals the main shaft for three times, the tightness of the main shaft is greatly improved through the combination of the three components, and meanwhile, the service life of the main shaft is prolonged.
Description
Technical Field
The utility model relates to the technical field of dryers, in particular to a sealing structure for a rake dryer and the rake dryer.
Background
The rake dryer is designed based on the technology of the domestic traditional vacuum rake dryer and is reinforced and improved for various pulpy, pasty, granular, powdery, fibrous and other materials, the transmission part adopts a cylindrical gear reducer which is stable in work and durable, the driving shaft adopts a thickened solid shaft, and the stable operation of the vacuum rake dryer under various severe working environments is fully ensured.
The existing sealing between the rake dryer shell and the driving shaft generally adopts a packing seal, but the driving shaft rotates for a long time, so that the sealing performance of the packing seal is poor, and the seasoning replacement of the packing seal is troublesome and can not be carried out when the driving shaft rotates.
Disclosure of Invention
The utility model aims to solve the technical problems that: in order to solve the technical problems in the prior art, the utility model provides a sealing structure for a rake dryer and the rake dryer.
The technical scheme adopted for solving the technical problems is as follows: the sealing structure for the rake dryer comprises a packing shell, wherein the packing shell is sleeved on a main shaft, and a filling port for online filling is formed in the packing shell; the sealing piece is arranged on the filler shell and is used for sealing the filling opening.
According to the sealing structure for the rake dryer, through the arrangement of the filling opening, the filler is conveniently filled on line when the main shaft works, the convenience of filler filling is improved, and the tightness between the filler shell and the main shaft can be improved.
Further, specifically, a cleaning cover is arranged on the packing shell, and the cleaning cover is hinged to the packing shell.
Further, the packing housing is provided with a plurality of packing housings along the axial direction of the main shaft.
Further, the device also comprises a mechanical seal assembly, wherein the mechanical seal assembly is arranged on the main shaft.
Further, the mechanical seal assembly comprises a first connecting plate, a second connecting plate, a first sealing ring and a second sealing ring, wherein the first connecting plate is connected with the packing shell, the second connecting plate is connected with the main shaft, the first sealing ring is connected with the first connecting plate, the second sealing ring is connected with the second connecting plate, and the first sealing ring is in butt joint with the second sealing ring.
Further, the mechanical seal assembly further comprises an adjusting sleeve, the adjusting sleeve is sleeved on the main shaft, the second sealing ring is connected with the adjusting sleeve, an adjusting screw is connected to the second connecting plate in a threaded mode, and the adjusting screw is abutted to one end, far away from the second sealing ring, of the adjusting sleeve.
Further, a sliding groove is formed in the adjusting sleeve along the axial direction of the main shaft, a push plate and a compression spring are arranged in the sliding groove, the push plate is abutted to the second sealing ring, and the compression spring is abutted to a pad at one end, far away from the second sealing ring, of the push plate.
Further, a first sealing groove is formed in the side wall of the inner hole of the adjusting sleeve, a first sealing ring is arranged in the first sealing groove, and the first sealing ring is in butt joint with the outer ring of the main shaft; the second sealing ring is provided with a second sealing groove, a second sealing ring is arranged in the second sealing groove, the adjusting sleeve is provided with a sealing part, the second sealing ring is sleeved on the sealing part, the push plate is provided with an extrusion part, and the extrusion part is positioned in the second sealing groove and is abutted to the second sealing ring.
Further, the device also comprises a nitrogen seal shell, wherein the nitrogen seal shell is sleeved on the main shaft and is positioned between the mechanical seal assembly and the filler shell, and an inflation inlet is formed in the nitrogen seal shell.
The utility model provides a rake dryer, includes the drying cylinder, it is connected with the main shaft to rotate on the drying cylinder, the one end of main shaft stretches out the drying cylinder, be equipped with foretell rake dryer on the drying cylinder and use seal structure, rake dryer is with seal structure locates the main shaft and stretches out on the part of drying cylinder.
The utility model has the advantages that,
1. through the arrangement of the filling port, the filler is convenient to fill on line when the main shaft works, the convenience of filling the filler is improved, and the tightness between the filler shell and the main shaft can be improved;
2. through the arrangement of the first sealing ring and the second sealing ring, the second sealing ring rotates along with the main shaft, the first sealing ring is fixed, and mechanical sealing is realized through the abutting connection of the first sealing ring and the second sealing ring, so that the possibility of leakage is reduced;
3. the adjusting screw is convenient to adjust the position of the adjusting sleeve through the arrangement of the adjusting screw, the compression spring and the push plate, and then the extrusion force between the first sealing ring and the second sealing ring is controlled, so that the purpose of adjusting the sealing effect between the first sealing ring and the second sealing ring is achieved, the compression spring and the push plate can continuously provide pressure for the second sealing ring, good tightness between the first sealing ring and the second sealing ring is ensured, meanwhile, the compression spring can be matched with the adjusting screw, the pressure output by the second sealing ring is increased, and because of the existence of the compression spring, a buffer margin exists between the first sealing ring and the second sealing ring, and the influence on rotation of the first sealing ring and the second sealing ring is reduced;
4. through setting up of second sealing ring, second seal groove and sealing part, the leakproofness between second sealing ring and the adjusting collar can be increased to the second sealing ring, exerts pressure at adjusting screw simultaneously, and sealing part also can increase the extrusion force to the second sealing ring, promotes the leakproofness between second sealing ring and the adjusting collar in step.
Drawings
The utility model will be further described with reference to the drawings and examples.
Fig. 1 is a schematic view showing the whole structure of a seal structure for a rake dryer according to the present utility model.
Fig. 2 is a schematic view of a mechanical seal assembly embodying the present utility model.
Fig. 3 is a schematic view of the overall structure of a rake dryer embodying the present utility model.
1, a packing sealing assembly; 11. a filler shell; 12. a filler neck; 121. a blocking member; 13. cleaning the cover; 2. a nitrogen seal assembly; 21. a nitrogen seal housing; 211. an inflation inlet; 3. a mechanical seal assembly; 31. a first connection plate; 311. a pressing plate; 32. a second connecting plate; 321. an adjusting pin; 33. a first seal ring; 34. a second seal ring; 341. a buffer gap; 35. an adjusting sleeve; 351. adjusting a screw; 352. a sliding groove; 357. a compression spring; 353. a push plate; 3531. a sealing part; 3532. a second seal ring; 3533. a second seal groove; 354. a first seal ring; 355. a first seal groove; 356. an adjustment tank; 5. drying the cylinder; 51. a protective cover; 52. a bearing seat; 53. a shaft end baffle ring; 54. a main shaft; 4. and driving the motor.
Description of the embodiments
The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.
In a first aspect, the utility model discloses a seal structure for a rake dryer.
Referring to fig. 1 to 3, a sealing structure for a rake dryer includes a packing seal assembly 1, a nitrogen seal assembly 2 and a mechanical seal assembly 3 which are sequentially disposed and disposed on a main shaft, wherein at least one packing seal assembly 1, and in this embodiment, two packing seal assemblies are disposed. Carry out primary seal through packing seal assembly 1 to the main shaft, through nitrogen seal assembly 2 to main shaft and then secondary seal, nitrogen seal assembly 2 can reduce the possibility that positive pressure gas carried the dust and got into mechanical seal assembly 3 simultaneously, promotes mechanical seal assembly 3's life, and mechanical seal assembly 3 then carries out tertiary seal to the main shaft, through the combination of three, very big promotion to the leakproofness of main shaft, promoted holistic life simultaneously.
The packing seal assembly 1 comprises a packing shell 11, the packing shell 11 is sleeved on the main shaft, a filling port 12 for on-line filling is formed in the packing shell 11, packing is conveniently filled into the packing shell 11 on line, and the sealing effect of the packing shell 11 on the main shaft is improved. A blocking member 121 for blocking the filler neck 12 is attached to the filler housing 11. The closure member 121 may be a closure cap that is threadably coupled to the packing housing 11.
The cleaning groove is further formed in the packing shell 11, the cleaning cover 13 is hinged to the side wall of the cleaning groove, packing is conveniently cleaned through the cleaning cover 13, packing is conveniently replaced, and sealing effect is guaranteed.
The mechanical seal assembly 3 includes a first connecting plate 31, a second connecting plate 32, a first sealing ring 33 and a second sealing ring 34, the first connecting plate 31 is connected with the packing housing 11, the second connecting plate 32 is connected with the main shaft, the first sealing ring 33 is connected with the first connecting plate 31, the second sealing ring 34 is connected with the second connecting plate 32, and the first sealing ring 33 is abutted with the second sealing ring 34. The first connecting plate 31 is fixedly connected with the pressing plate 311 through a bolt, and the pressing plate 311 is abutted against the first sealing ring 33 so as to be matched with the first connecting plate 31 to clamp the first sealing ring 33.
The mechanical seal assembly 3 further comprises an adjusting sleeve 35, the adjusting sleeve 35 is sleeved on the main shaft and arranged between the second sealing ring 34 and the second connecting plate 32, an adjusting screw 351 is connected to the second connecting plate 32 in a threaded mode, and the adjusting screw 351 is abutted to one end, far away from the second sealing ring 34, of the adjusting sleeve 35. A sliding groove 352 is arranged in the adjusting sleeve 35 along the axial direction of the main shaft, a push plate 353 and a compression spring 357 are arranged in the sliding groove 352, the push plate 353 is abutted with the second sealing ring 34, and the compression spring 357 is abutted with one end of the push plate 353 away from the second sealing ring 34. Through the setting of adjusting screw 351, compression spring 357 and push pedal 353, adjusting screw 351 is convenient for adjust the position of adjusting collar 35, and then control the extrusion force between first sealing washer 33 and the second sealing washer 34, in order to reach the purpose of adjusting the sealed effect between first sealing washer 33 and the second sealing washer 34, and compression spring 357 and push pedal 353 then can continuously provide the pressure for the second sealing washer 34, guarantee the good leakproofness between first sealing washer 33 and the second sealing washer 34, simultaneously can cooperate with adjusting screw 351 again, increase the pressure to the output of second sealing washer 34, and because compression spring 357's existence, there is the buffering room again between first sealing washer 33 and the second sealing washer 34, reduced the influence to the rotation of first sealing washer 33 and second sealing washer 34. The compression springs 357 are arrayed in a circumferential direction of the adjustment sleeve 35 in order to ensure uniformity of the elastic force applied to the second seal ring 34.
Be equipped with first seal groove 355 on the lateral wall of adjusting collar 35 hole, be equipped with first sealing ring 354 in the first seal groove 355, first sealing ring 354 and the outer lane butt of main shaft, the leakproofness between adjusting collar 35 and the main shaft is convenient for promote to first sealing ring 354. The second connecting plate 32 is fixedly connected with the adjusting pin 321, and the adjusting sleeve 35 is provided with an adjusting groove 356 for the inserting of the adjusting pin 321, so that the second connecting plate 32 can drive the adjusting sleeve 35 to rotate, and the adjusting sleeve 35 can move along the axial direction of the main shaft. The adjustment pins 321 are arrayed in a plurality along the circumference of the adjustment sleeve 35. The second sealing ring 34 is provided with a second sealing groove 3533, a second sealing ring 34 ring is arranged in the second sealing groove 3533, the adjusting sleeve 35 is provided with a sealing part 3531, the second sealing ring 3532 is sleeved on the sealing part 3531, the push plate 353 is provided with an extrusion part, and the extrusion part is positioned in the second sealing groove 3533 and is abutted against the second sealing ring 3532. Through the setting of second sealing ring 3532, second seal groove 3533 and sealing portion 3531, second sealing ring 3532 can increase the leakproofness between second sealing ring 34 and the adjusting collar 35, exerts pressure at adjusting screw 351 simultaneously, and sealing portion 3531 also can increase the extrusion force to second sealing ring 3532, promotes the leakproofness between second sealing ring 34 and the adjusting collar 35 in step. At the same time, the sealing part 3531 and the pushing plate 353 are matched with each other, so that the second sealing ring 34 can be better supported, and the possibility that the second sealing ring 34 is inclined to influence the tightness is reduced. And a buffer gap 341 is arranged between the second sealing ring 34 and the adjusting sleeve 35, so that when the first sealing ring 33 and the second sealing ring 34 are oversized, the second sealing ring 34 can avoid the first sealing ring 33, and the service lives of the first sealing ring 33 and the second sealing ring 34 are prolonged.
The nitrogen seal assembly 2 comprises a nitrogen seal shell 21, the nitrogen seal shell is sleeved on the main shaft 21 and is positioned between the mechanical seal assembly 3 and the packing shell 11, and an air charging port 211 is arranged on the nitrogen seal shell 21.
In a second aspect, the present utility model discloses a rake dryer.
The utility model provides a rake dryer, includes drying cylinder 5 and driving motor 4, rotates on the drying cylinder 5 and is connected with main shaft 54, and drying cylinder 5 and driving motor 4's output shaft coaxial fixed are stretched out to main shaft 54's one end, and drying cylinder 5 is also stretched out to the other end, and foretell rake dryer is with seal structure setting in main shaft 54 stretch out the part of drying cylinder 5, is equipped with two in this embodiment for prevent the possibility that the material in the drying cylinder 5 was revealed along the gap between main shaft 54 and the drying cylinder 5. The two ends of the drying cylinder 5 along the axial direction of the main shaft 54 are fixedly connected with a protective cover 51, and the protective cover 51 is covered outside the main shaft 54 and the sealing structure for the rake dryer. The protection cover 51 is fixedly connected with a bearing seat 52, the bearing seat 52 is rotationally connected with one end, far away from the driving motor 4, of the main shaft 54 through a bearing, the bearing seat 52 is fixedly connected with a shaft end baffle ring 53, the shaft end baffle ring 53 is abutted with the bearing, and the shaft end baffle ring is matched with the bearing seat 52 to limit the bearing. The bearing seat 52 and the shaft end baffle ring 53 are arranged, so that the bearing can be integrally installed or dismantled through the bearing seat 52 when being installed and dismantled, the difficulty in disassembly and assembly between the bearing and the main shaft 54 is reduced, the main shaft 54 and the bearing are protected, and the possibility of damage of the main shaft 54 and the bearing in the disassembly and assembly process is reduced.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (10)
1. A seal structure for rake dryer, its characterized in that: comprising
The packing device comprises a packing shell (11), wherein the packing shell (11) is sleeved on a main shaft, and a filling port (12) for online filling is formed in the packing shell (11);
and the blocking piece (121) is arranged on the filler shell (11) and is used for blocking the filling port (12).
2. The seal structure for a rake dryer as set forth in claim 1, wherein: the packing shell (11) is provided with a cleaning cover (13), and the cleaning cover (13) is hinged with the packing shell (11).
3. The seal structure for a rake dryer as set forth in claim 1, wherein: the packing shell (11) is provided with a plurality of packing shells along the axial direction of the main shaft.
4. The seal structure for a rake dryer as set forth in claim 1, wherein: the mechanical seal device further comprises a mechanical seal assembly (3), and the mechanical seal assembly (3) is arranged on the main shaft.
5. The seal structure for a rake dryer as set forth in claim 4, wherein: the mechanical seal assembly (3) comprises a first connecting plate (31), a second connecting plate (32), a first sealing ring (33) and a second sealing ring (34), wherein the first connecting plate (31) is connected with the filler shell (11), the second connecting plate (32) is connected with the main shaft, the first sealing ring (33) is connected with the first connecting plate (31), the second sealing ring (34) is connected with the second connecting plate (32), and the first sealing ring (33) is in butt joint with the second sealing ring (34).
6. The seal structure for a rake dryer as set forth in claim 5, wherein: the mechanical seal assembly (3) further comprises an adjusting sleeve (35), the adjusting sleeve (35) is sleeved on the main shaft, the second sealing ring (34) is connected with the adjusting sleeve (35), an adjusting screw (351) is connected to the second connecting plate (32) in a threaded mode, and the adjusting screw (351) is abutted to one end, far away from the second sealing ring (34), of the adjusting sleeve (35).
7. The seal structure for a rake dryer as set forth in claim 6, wherein: the novel sealing device is characterized in that a sliding groove (352) is formed in the adjusting sleeve (35) along the axial direction of the main shaft, a push plate (353) and a compression spring (357) are arranged in the sliding groove (352), the push plate (353) is abutted to the second sealing ring (34), and the compression spring (357) is abutted to one end, far away from the second sealing ring (34), of the push plate (353).
8. The seal structure for a rake dryer as set forth in claim 7, wherein: a first sealing groove (355) is formed in the side wall of the inner hole of the adjusting sleeve (35), a first sealing ring (354) is arranged in the first sealing groove (355), and the first sealing ring (354) is abutted with the outer ring of the main shaft;
be equipped with second seal groove (3533) on second sealing washer (34), be equipped with second sealing ring (3532) in second seal groove (3533), be equipped with sealing part (3531) on adjusting collar (35), second sealing ring (3532) cover is on sealing part (3531), be equipped with extrusion portion on push pedal (353), extrusion portion is located second seal groove (3533), and with second sealing ring (3532) butt.
9. The seal structure for a rake dryer as set forth in claim 7, wherein: the novel mechanical seal device is characterized by further comprising a nitrogen seal shell (21), wherein the nitrogen seal shell (21) is sleeved on the main shaft and is positioned between the mechanical seal assembly (3) and the filler shell (11), and an inflation inlet (211) is formed in the nitrogen seal shell (21).
10. A rake dryer, characterized in that: the drying cylinder (5) is rotationally connected with a main shaft (54), one end of the main shaft (54) extends out of the drying cylinder (5), the drying cylinder (5) is provided with the sealing structure for the rake dryer according to any one of claims 1-9, and the sealing structure for the rake dryer is arranged on the part, extending out of the drying cylinder (5), of the main shaft (54).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321746617.9U CN220523290U (en) | 2023-07-05 | 2023-07-05 | Sealing structure for rake dryer and rake dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321746617.9U CN220523290U (en) | 2023-07-05 | 2023-07-05 | Sealing structure for rake dryer and rake dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220523290U true CN220523290U (en) | 2024-02-23 |
Family
ID=89924842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321746617.9U Active CN220523290U (en) | 2023-07-05 | 2023-07-05 | Sealing structure for rake dryer and rake dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220523290U (en) |
-
2023
- 2023-07-05 CN CN202321746617.9U patent/CN220523290U/en active Active
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