CN218992284U - Dust-proof sealing device for driving shaft of gasification furnace grate - Google Patents
Dust-proof sealing device for driving shaft of gasification furnace grate Download PDFInfo
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- CN218992284U CN218992284U CN202221323895.9U CN202221323895U CN218992284U CN 218992284 U CN218992284 U CN 218992284U CN 202221323895 U CN202221323895 U CN 202221323895U CN 218992284 U CN218992284 U CN 218992284U
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- driving shaft
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Abstract
The utility model discloses a dust-proof sealing device for a driving shaft of a grate of a gasification furnace, wherein one end of the driving shaft is connected with a speed reducer, the other end of the driving shaft is provided with an output gear, an eccentric shaft sleeve is sleeved outside the driving shaft, and a shaft sleeve is arranged between one end of the eccentric shaft sleeve, which is close to the output gear, and the driving shaft is characterized in that a sealing mechanism is arranged at the end part of the eccentric shaft sleeve and comprises an input end seal arranged at one end of the driving shaft, which is connected with the speed reducer, and an output end seal arranged at one end of the driving shaft, which is connected with the output gear, and a gap between the eccentric shaft sleeve and the driving shaft is sealed through a sealing structure at two ends; according to the utility model, the dustproof sealing structure is arranged between the two ends of the eccentric shaft sleeve and the driving shaft, so that dust is prevented from entering a gap between the shaft sleeve and the driving shaft in the operation process of the driving shaft, abrasion damage is caused, the service lives of the shaft sleeve and the driving shaft are prolonged, and the production cost is reduced.
Description
Technical Field
The utility model relates to the field of sealing of driving shafts, in particular to a dust-proof sealing device of a driving shaft of a gasification furnace grate.
Background
Each gasification furnace is provided with two speed reducers, and the rotation of the grate is jointly driven by the two speed reducers. The driving mechanism of the fire grate consists of a large gear and two small gears, the large gear is connected with the rotary shaft of the fire grate by a multi-tooth key, the small gears are fixed on the output shaft, and the small gears are driven by a variable speed motor outside the fire grate through a speed reducer.
Because the output gear stretches into in the stove, dust in the stove can get into between drive shaft and the axle sleeve, causes the gasifier to move, appears the drive shaft abnormal sound, axle sleeve and axle aggravate wearing and tearing phenomenon, oil pipe distortion or fracture appear and take place even the condition of unable operation, need the shutdown maintenance, influence production.
Disclosure of Invention
In order to solve the problems, the utility model provides a dust-proof sealing device for a driving shaft of a grate of a gasification furnace, which seals a gap between an eccentric sleeve and the driving shaft.
In order to solve the problems, the utility model is realized by the following scheme:
the utility model provides a gasification stove grate drive shaft dust seal device, the reduction gear is connected to the one end of drive shaft, and output gear is installed to the other end, the overcoat of drive shaft has eccentric sleeve, be provided with the axle sleeve between the one end that eccentric sleeve is close to output gear and the drive shaft, its characterized in that eccentric sleeve's tip is provided with sealing mechanism, sealing mechanism is sealed with the output that sets up in drive shaft connection output gear one end including the input seal that sets up in drive shaft connection reduction gear one end, seals the clearance between eccentric sleeve and the drive shaft through the seal structure at both ends.
Further, the shaft sleeve is fixed on the inner wall of the eccentric shaft sleeve to limit the relative movement of the shaft sleeve and the eccentric shaft sleeve.
Further, a first oil filling port is formed in the eccentric shaft sleeve, an oil groove is formed in the inner side of the shaft sleeve, an oil filling copper pipe is arranged between the eccentric shaft sleeve and the driving shaft, one end of the oil filling copper pipe is communicated with the oil groove, the other end of the oil filling copper pipe is communicated with the first oil filling port, and lubricating oil is filled into the oil groove.
Further, the input end seal comprises an oil inlet ring, a spacer ring is arranged on one side, far away from the speed reducer, of the oil inlet ring, and three layers of packing rings are arranged on one side, close to the speed reducer, of the oil inlet ring.
Further, the outer side of the packing ring is propped against through a packing lower gland, the packing lower gland is fixed between the eccentric shaft sleeve and the driving shaft, and the packing lower gland is fixed on the eccentric shaft sleeve through bolts.
Further, the eccentric shaft sleeve is internally provided with a bulge at one side provided with the input end seal, one side of the partition ring, which is far away from the speed reducer, is propped against the bulge of the eccentric shaft sleeve to limit the axial movement of the input end seal, and the partition ring, the oil inlet ring and the packing ring are clamped in a gap between the eccentric shaft sleeve and the driving shaft to limit the radial direction of the input end seal.
Further, a second oil filling port is arranged on the eccentric shaft sleeve and communicated with an oil inlet ring, and oil is filled into the seal for lubrication.
Further, the output end seal comprises a bearing bush gland fixed on the end face of the eccentric shaft sleeve, which is close to one end face of the output gear, the bearing bush gland is fixed on the end face of the eccentric shaft sleeve through a bolt, the bearing bush gland is sleeved on the driving shaft, the end face of the bearing bush gland is propped against the outer side of the shaft sleeve, and the bearing bush gland and the shaft sleeve are fixed together through the bolt.
Further, a scraper is fixed on the end face of one side of the output gear, which is close to the eccentric shaft sleeve, and a slot is formed between the inner wall driving shafts of the scraper.
Further, the end face of the bearing bush gland close to one side of the output gear is protruded to form a convex edge, and the convex edge is inserted into the slot, so that a gap between the end face of the output gear and the eccentric shaft sleeve forms a staggered joint, and dust is prevented from entering.
According to the utility model, the dustproof sealing structure is arranged between the two ends of the eccentric shaft sleeve and the driving shaft, so that dust is prevented from entering a gap between the shaft sleeve and the driving shaft in the operation process of the driving shaft, abrasion damage is caused, the service lives of the shaft sleeve and the driving shaft are prolonged, and the production cost is reduced.
According to the utility model, the shaft sleeve and the eccentric shaft sleeve are mutually locked through the bearing bush gland, so that the relative movement between the shaft sleeve and the eccentric shaft sleeve is limited, and the distortion and fracture of the oiling copper pipe caused by the rotation of the shaft sleeve in the driving shaft operation process are prevented.
Drawings
The utility model is further illustrated by the following figures and examples.
FIG. 1 is a schematic view of the whole of the present utility model
FIG. 2 is an enlarged schematic view of the seal of the input end
FIG. 3 is an enlarged schematic view of the output end seal
In the figure: 1-driving shaft, 2-output gear, 3-eccentric shaft sleeve, 4-sealing mechanism, 5-connecting seat, 6-shaft sleeve, 7-oiling copper pipe, 201-scraper, 301-connecting bolt, 302-first oiling port, 303-second oiling port, 401-input end seal, 402-output end seal, 601-oil groove, 4011-oil inlet ring, 4012-spacer ring, 4013-three-layer packing ring, 4014-packing lower gland, 4021-bearing bush gland.
Detailed Description
The dustproof sealing device for the driving shaft of the gasification furnace grate is shown in fig. 1, one end of the driving shaft 1 is connected with a speed reducer, the other end of the driving shaft is provided with an output gear 2, an eccentric shaft sleeve 3 is sleeved outside the driving shaft 1, a sealing mechanism 4 is arranged at the end part of the eccentric shaft sleeve 3, the space between the eccentric shaft sleeve 3 and the driving shaft 1 is sealed, and dust is prevented from entering the driving shaft 1.
One end of the driving shaft 1, which is connected with the speed reducer, is provided with a connecting seat 5, the connection between the driving shaft 1 and the speed reducer is reinforced, one end of the eccentric shaft sleeve 3, which is close to the speed reducer, is fixed on the connecting seat 5 through a connecting bolt 301, a shaft sleeve 6 is arranged between one end of the eccentric shaft sleeve 3, which is close to the output gear 2, and the driving shaft 1, the shaft sleeve 6 is in interference fit on the inner wall of the eccentric shaft sleeve 3, the shaft sleeve 6 is clamped, and the shaft sleeve 6 does not rotate along with the driving shaft 1.
The eccentric shaft sleeve 3 is provided with a first oil filling port 302, the inner side of the shaft sleeve 6 is provided with an oil groove 601, an oil filling copper pipe 7 is arranged between the eccentric shaft sleeve 3 and the driving shaft 1, one end of the oil filling copper pipe 7 is communicated with the oil groove 601, the other end of the oil filling copper pipe is communicated with the first oil filling port 302, lubricating oil is filled into the oil groove 601, and the contact part between the shaft sleeve 6 and the driving shaft 1 is lubricated.
The sealing mechanism 4 comprises an input end seal 401 arranged at one end of the driving shaft 1 connected with the speed reducer and an output end seal 402 arranged at one end of the driving shaft 1 connected with the output gear 2.
As shown in fig. 2, the input end seal 401 includes an oil inlet ring 4011 for injecting oil, a contact surface between the lubrication seal and the driving shaft 1, a spacer ring 4012 is disposed on one side of the oil inlet ring 4011 far away from the speed reducer, oil leakage is prevented, a three-layer packing ring 4013 is disposed on one side close to the speed reduction, oil injected into the oil inlet ring 4011 is prevented from leaking outwards, the outer side of the packing ring 4013 is propped against the packing lower gland 4014 to fix the packing lower gland 4014 between the eccentric shaft sleeve 3 and the driving shaft 1, and the packing lower gland 4014 is fixed on the eccentric shaft sleeve 3 through bolts.
The eccentric shaft sleeve 3 is internally provided with a bulge at one side provided with the input end seal 401, one side of the spacer ring 4012 far away from the speed reducer is propped against the bulge of the eccentric shaft sleeve 3 to limit the axial movement of the input end seal 401, and the spacer ring 4012, the oil inlet ring 4011 and the packing ring 4013 are clamped in a gap between the eccentric shaft sleeve 3 and the driving shaft 1 to limit the radial direction of the input end seal 401 so as to enable the driving shaft 1 to be connected with one end of the speed reducer for sealing.
The eccentric shaft sleeve 3 is provided with a second oil filling port 303, and the second oil filling port 303 is communicated with an oil inlet ring 4011 to fill oil into the seal for lubrication.
As shown in fig. 3, the output end seal 402 includes a bushing gland 4021 fixed on an end surface of the eccentric shaft sleeve 3 near one end of the output gear 2, the bushing gland 4021 is fixed on an end surface of the eccentric shaft sleeve 3 by a bolt, the bushing gland 4021 is sleeved on the driving shaft 1, the end surface of the bushing gland is propped against the outer side of the shaft sleeve 6, and is fixed with the shaft sleeve 6 by the bolt, so that dust is prevented from entering the shaft sleeve 6, mutual friction between the shaft sleeve 6 and the driving shaft 1 is increased, and damage is accelerated.
The scraper 201 is fixed on the end surface of one side of the output gear 2, which is close to the eccentric shaft sleeve 3, through bolts, the inner wall of the scraper 201 is of a two-stage step structure, a slot is formed between the scraper and the driving shaft 1, dust is prevented from adhering and gathering at the end part of the eccentric shaft sleeve 3, and friction damage is accelerated.
The end face of the bearing bush gland 4021, which is close to one side of the output gear 2, is protruded to form a convex edge, and the convex edge is inserted into the slot, so that the driving shaft is not in direct contact with the external environment, a gap between the end face of the output gear 2 and the eccentric shaft sleeve 3 forms a staggered joint, and dust is prevented from entering.
According to the utility model, the dustproof sealing structure is arranged between the two ends of the eccentric shaft sleeve and the driving shaft, so that dust is prevented from entering a gap between the shaft sleeve and the driving shaft in the operation process of the driving shaft, abrasion damage is caused, the service lives of the shaft sleeve and the driving shaft are prolonged, and the production cost is reduced.
According to the utility model, the shaft sleeve and the eccentric shaft sleeve are mutually locked through the bearing bush gland, so that the relative movement between the shaft sleeve and the eccentric shaft sleeve is limited, and the distortion and fracture of the oiling copper pipe caused by the rotation of the shaft sleeve in the driving shaft operation process are prevented.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "top", "end", "one side", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Meanwhile, unless explicitly specified and limited otherwise, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
It will be apparent that the foregoing is only one embodiment, and not all embodiments, of the present utility model. Other modifications and equivalents of the present utility model, based on the embodiments of the present utility model, will be apparent to those of ordinary skill in the art without departing from the spirit and scope of the present utility model, and are intended to be encompassed in the scope of the appended claims.
Claims (10)
1. The utility model provides a gasification stove grate drive shaft dust seal device, the reduction gear is connected to the one end of drive shaft (1), and output gear (2) are installed to the other end, the overcoat of drive shaft (1) has eccentric axle sleeve (3), be provided with axle sleeve (6) between one end that eccentric axle sleeve (3) are close to output gear (2) and drive shaft (1), a serial communication port be provided with sealing mechanism (4) in the tip of eccentric axle sleeve (3), sealing mechanism (4) are sealed (402) including input seal (401) that set up in drive shaft (1) connection reduction gear one end and output that set up in drive shaft (1) connection output gear (2) one end, seal the clearance between eccentric axle sleeve (3) and drive shaft (1) through the seal structure at both ends.
2. Grate drive shaft dust seal as claimed in claim 1, characterized in that the bushing (6) is fixed to the inner wall of the eccentric bushing (3), limiting the relative movement of the bushing (6) and the eccentric bushing (3).
3. The grate driving shaft dustproof sealing device according to claim 1, characterized in that a first oil filling port (302) is arranged on the eccentric shaft sleeve (3), an oil groove (601) is arranged on the inner side of the shaft sleeve (6), an oil filling copper pipe (7) is arranged between the eccentric shaft sleeve (3) and the driving shaft (1), one end of the oil filling copper pipe (7) is communicated with the oil groove (601), the other end of the oil filling copper pipe is communicated with the first oil filling port (302), and lubricating oil is filled into the oil groove (601).
4. The grate drive shaft dust seal arrangement of claim 1, wherein the input end seal (401) comprises an oil inlet ring (4011), wherein a spacer ring (4012) is arranged on the side of the oil inlet ring (4011) away from the speed reducer, and a three-layer packing ring (4013) is arranged on the side of the oil inlet ring close to the speed reducer.
5. The grate drive shaft dust seal as claimed in claim 4, wherein the outer side of the packing ring (4013) is held against the eccentric sleeve (3) and the drive shaft (1) by a packing gland (4014), and the packing gland (4014) is fastened to the eccentric sleeve (3) by bolts.
6. The grate drive shaft dust seal as claimed in claim 5, characterized in that the eccentric sleeve (3) is provided with a bulge inwards on the side provided with the input end seal (401), the side of the spacer ring (4012) remote from the reducer is propped against the bulge of the eccentric sleeve (3) to limit the axial movement of the input end seal (401), and the spacer ring (4012), the oil inlet ring (4011) and the packing ring (4013) are clamped in the gap between the eccentric sleeve (3) and the drive shaft (1) to limit the radial movement of the input end seal (401).
7. The grate drive shaft dust seal as claimed in claim 6, characterized in that a second oil filling port (303) is provided on the eccentric sleeve (3), said second oil filling port (303) being in communication with an oil inlet ring (4011) for filling oil into the seal for lubrication.
8. The dust seal apparatus of a grate drive shaft according to claim 2, wherein the output end seal (402) comprises a bushing gland (4021) fixed on the end face of the eccentric shaft sleeve (3) near one end face of the output gear (2), the bushing gland (4021) is fixed on the end face of the eccentric shaft sleeve (3) through a bolt, the bushing gland (4021) is sleeved on the drive shaft (1), the end face of the bushing gland is propped against the outer side of the shaft sleeve (6), and the bushing gland is fixed with the shaft sleeve (6) through the bolt.
9. The dust seal apparatus of the grate driving shaft according to claim 8, wherein a scraper (201) is fixed on an end surface of one side of the output gear (2) close to the eccentric shaft sleeve (3), and a slot is formed between an inner wall of the scraper (201) and the driving shaft (1).
10. The dust seal apparatus of the grate drive shaft according to claim 9, wherein the end face of the bushing gland (4021) near one side of the output gear (2) is protruded to form a convex edge, and the convex edge is inserted into the slot, so that a gap between the end face of the output gear (2) and the eccentric shaft sleeve (3) forms a gap, and dust is prevented from entering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221323895.9U CN218992284U (en) | 2022-05-30 | 2022-05-30 | Dust-proof sealing device for driving shaft of gasification furnace grate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221323895.9U CN218992284U (en) | 2022-05-30 | 2022-05-30 | Dust-proof sealing device for driving shaft of gasification furnace grate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218992284U true CN218992284U (en) | 2023-05-09 |
Family
ID=86220251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221323895.9U Active CN218992284U (en) | 2022-05-30 | 2022-05-30 | Dust-proof sealing device for driving shaft of gasification furnace grate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218992284U (en) |
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2022
- 2022-05-30 CN CN202221323895.9U patent/CN218992284U/en active Active
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