CN215197491U - Medium speed pulverizer frame sealing device - Google Patents
Medium speed pulverizer frame sealing device Download PDFInfo
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- CN215197491U CN215197491U CN202121036323.8U CN202121036323U CN215197491U CN 215197491 U CN215197491 U CN 215197491U CN 202121036323 U CN202121036323 U CN 202121036323U CN 215197491 U CN215197491 U CN 215197491U
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- sealing
- connecting rod
- medium speed
- oil
- piston cylinder
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Abstract
The utility model is suitable for a medium speed coal mill technical field especially relates to a medium speed coal mill frame sealing device, including driving plate and seal shell; a fixing ring is arranged between the sealing shell and the transmission disc, a sealing ring is arranged on one side of the fixing ring, and an oiling mechanism and a driving mechanism are arranged on the other side of the fixing ring; the oil filling mechanism is used for intermittently filling oil to the sealing ring, and the driving mechanism is used for providing power for the oil filling mechanism; this device provides power for refueling the mechanism through drive structure, carries out intermittent type nature through refueling the mechanism and refuels to the sealing ring, does not need the manual work to refuel on the one hand, has practiced thrift the time, and on the other hand intermittent type nature refuels set up to have guaranteed that lubricating oil can the stable surface that drips at the sealing ring that lasts, has avoided the extravagant phenomenon that disposable too much lubricating oil of joining caused.
Description
Technical Field
The utility model relates to a medium speed pulverizer technical field specifically is a medium speed pulverizer frame sealing device.
Background
At present, in the thermal power industry of China, medium speed coal mills are widely applied, wherein ZGM type and MPS type medium speed coal mills occupy a large share, the medium speed coal mills are common equipment of a powder making system of a large-capacity boiler unit of a thermal power plant and are one of main energy consumption equipment of the boiler unit, the operation conditions of the medium speed coal mills are closely related to the economic benefit of the power plant, the abrasion of air seal parts and the leakage of the air seal system caused by the discharge of pebble coal in the coal mills are common problems in the operation process of the medium speed coal mills, and therefore, the replacement of spare parts and the increase of the equipment maintenance cost are brought, the operation cost of the boiler unit is greatly improved, and the economic benefit of the power plant is seriously influenced.
The existing medium speed coal mill is generally sealed by a metal labyrinth seal and then sealed by a sealing assembly, wherein in operation, friction is inevitably generated between moving and static parts due to the change of the working condition and the sealing wind pressure of the coal mill, so that the sealing assembly is abraded to a certain extent, lubricating oil is frequently required to be added into the sealing assembly, the outer ring of the sealing assembly is detached in the existing lubricating oil adding mode, then the inner ring is taken out, so that the sealing ring is exposed, and finally the lubricating oil is added into the surface of the sealing ring.
However, in the mode of adding the lubricating oil, the parts are required to be sequentially disassembled by the workers, and then the lubricating oil is added in a manual mode, so that the efficiency is low, and the time of the workers is wasted.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a medium speed pulverizer frame sealing device to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a sealing device for a base of a medium-speed coal mill comprises a transmission disc and a sealing shell; a fixing ring is arranged between the sealing shell and the transmission disc, a sealing ring is arranged on one side of the fixing ring, and an oiling mechanism and a driving mechanism are arranged on the other side of the fixing ring;
the oiling mechanism is used for intermittently oiling the sealing ring,
the driving mechanism is used for providing power for the oiling mechanism.
Further: one side of sealing ring is equipped with the baffle, one side that the sealing ring was kept away from to the sealed shell is equipped with vent and first discharge gate, vent and first discharge gate are located the both sides of baffle respectively, the inside of vent is equipped with the filter screen, and wherein actuating mechanism and vent are located the homonymy of baffle.
Further: the oiling mechanism comprises a piston cylinder, the bottom of the piston cylinder is connected with an oil outlet pipe, one end of the oil outlet pipe penetrates through a fixing ring and is attached to the surface of a sealing ring, the other end of the oil outlet pipe is fixedly connected with the piston cylinder and communicated with the piston cylinder, a circular piston is arranged inside the piston cylinder, and the circular piston is connected with a driving mechanism.
Further: an oil tank is arranged outside the sealing shell and connected with the piston cylinder through an oil inlet pipe.
Further: the driving mechanism comprises a first connecting rod, the first connecting rod penetrates through the top of the piston cylinder, one end of the first connecting rod is connected with the circular piston, the other end of the first connecting rod is connected with a second connecting rod in a rotating mode, the inside of the sealing shell is connected with a wind wheel in a rotating mode, and the wind wheel is connected with the second connecting rod in a rotating mode.
Further: and the first connecting rod is provided with a fixed block, and the fixed block is movably connected with the piston cylinder through a spring.
Further: be equipped with the ventilation hole on the baffle, gu be equipped with the second discharge gate on the fixed ring, first discharge gate and second discharge gate are located the homonymy of baffle, the bottom of sealed shell is equipped with the third discharge gate.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a medium speed pulverizer frame sealing device, this device provides power for refueling the mechanism through drive structure, carries out intermittent type nature through refueling the mechanism to the sealing ring, does not need the manual work to refuel on the one hand, has practiced thrift the time, and on the other hand intermittent type nature refuels setting has guaranteed that lubricating oil can the stable surface that drips at the sealing ring that lasts, has avoided the extravagant phenomenon that once only adds too much lubricating oil and causes.
Drawings
Fig. 1 is a front view of the overall structure of a sealing device of a medium speed mill base.
Fig. 2 is an enlarged view of a medium speed pulverizer base sealing device at a position A in fig. 1.
Fig. 3 is a front view of a driving mechanism of a sealing device of a medium speed mill base.
In the figure: 1-transmission disc, 2-filter screen, 3-first discharge port, 4-vent, 5-vent, 6-oil tank, 7-clapboard, 8-oil inlet pipe, 9-second discharge port, 10-fixing ring, 11-third discharge port, 12-sealing ring, 13-wind wheel, 14-second connecting rod, 15-first connecting rod, 16-round piston, 17-piston cylinder, 18-spring, 19-fixing block, 20-oil outlet pipe, 21-sealing shell.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following detailed description is provided for the specific embodiments of the present invention.
In the present embodiment, referring to fig. 1, a sealing device for a base of a medium speed coal mill includes a driving plate 1 and a sealing shell 21; a fixing ring 10 is arranged between the sealing shell 21 and the transmission disc 1, a sealing ring 12 is arranged on one side of the fixing ring 10, and an oiling mechanism and a driving mechanism are arranged on the other side of the fixing ring 10;
the refueling mechanism is used for intermittent refueling of the sealing ring 12,
the driving mechanism is used for providing power for the oiling mechanism.
In this embodiment, this device provides power for refueling the mechanism through drive structure, carries out intermittent type nature through refueling the mechanism and refuels sealing ring 12, does not need the manual work to refuel on the one hand, has practiced thrift the time, and on the other hand intermittent type nature refuels set up to have guaranteed that lubricating oil can the continuous stable surface that drips at sealing ring 12, has avoided the extravagant phenomenon that once only adds too much lubricating oil and cause.
In another embodiment, referring to fig. 1, a partition 7 is disposed on one side of the sealing ring 12, a vent 4 and a first discharge hole 3 are disposed on one side of the sealing shell 21 away from the sealing ring 12, the vent 4 and the first discharge hole 3 are respectively located on two sides of the partition 7, a filter screen 2 is disposed inside the vent 4, and the driving mechanism and the vent 4 are located on the same side of the partition 7.
In this embodiment, at driving disk 1 pivoted in-process, the powder that produces between sealed shell 21 and the driving disk 1 drops from first discharge gate 3, can produce the wind pressure between sealed shell 21 and the driving disk 1 simultaneously, and the wind pressure enters into the one side of baffle 7 through vent 4, is driven the drive arrangement operation by the wind pressure that produces, does not need the access of extra energy, has practiced thrift the energy.
In another embodiment, please refer to fig. 2-3, the refueling mechanism includes a piston cylinder 17, the bottom of the piston cylinder 17 is connected with an oil outlet pipe 20, one end of the oil outlet pipe 20 penetrates through the fixing ring 10 and is attached to the surface of the sealing ring 12, the other end of the oil outlet pipe 20 is fixedly connected and communicated with the piston cylinder 17, a circular piston 16 is arranged inside the piston cylinder 17, and the circular piston is connected with a driving mechanism;
an oil tank 6 is arranged outside the sealing shell 21, and the oil tank 6 is connected with the piston cylinder 17 through an oil inlet pipe 8.
In this embodiment, drive circular piston 16 reciprocating motion through actuating mechanism, when circular piston 16 moved the bottommost of piston cylinder 17, circular piston 16 can stop up oil pipe 20, piston cylinder 17 was in a encapsulated situation this moment, when oil pipe 20 was kept away from to circular piston 16 section of thick bamboo, make piston cylinder 17 be in an open mode, lubricating oil passes through oil pipe 20 drippage on the surface of sealing ring 12, can lubricate sealing ring 12 this moment, do not need manual operation, time is saved, in addition the staff of being convenient for of setting up of oil tank 6 adds lubricating oil to piston cylinder 17's inside, make things convenient for the staff to operate.
In another embodiment, referring to fig. 3, the driving mechanism includes a first connecting rod 15, the first connecting rod 15 penetrates through the top of the piston cylinder 17, one end of the first connecting rod 15 is connected with a circular piston 16, the other end of the first connecting rod 15 is rotatably connected with a second connecting rod 14, a wind wheel 13 is rotatably connected inside the sealing shell 21, and the wind wheel 13 is rotatably connected with the second connecting rod 14;
the first connecting rod 15 is provided with a fixed block 19, and the fixed block 19 is movably connected with the piston cylinder 17 through a spring 18.
In this embodiment, when producing the wind pressure between seal shell 21 and driving disc 1, the wind pressure drives wind wheel 13 and rotates, wind wheel 13 drives first connecting rod 15 reciprocating motion through second connecting rod 14 to drive circular piston 16 reciprocating motion, thereby realized the effect of piston cylinder 17 intermittent type oil production, the setting of fixed block 19 and spring 18 has an elastic support's effect to first connecting rod 15 in addition, and then the stability can when having improved first connecting rod 15 and moving.
In another embodiment, referring to fig. 1, a vent hole 5 is formed in the partition plate 7, a second discharge hole 9 is formed in the fixing ring 10, the first discharge hole 3 and the second discharge hole 9 are located at the same side of the partition plate 7, and a third discharge hole 11 is formed in the bottom of the sealing shell 21.
In this embodiment, the powder falls into between solid fixed ring 10 and the sealed shell 21 through second discharge gate 9, then through third discharge gate 11 landing, the setting up of ventilation hole 5 has guaranteed the circulation flow of the inside air of sealed shell 21 in addition, has avoided the too big influence that produces the device of wind pressure.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A sealing device for a base of a medium-speed coal mill comprises a transmission disc and a sealing shell; the oil filling device is characterized in that a fixing ring is arranged between the sealing shell and the transmission disc, a sealing ring is arranged on one side of the fixing ring, and an oil filling mechanism and a driving mechanism are arranged on the other side of the fixing ring;
the oiling mechanism is used for intermittently oiling the sealing ring,
the driving mechanism is used for providing power for the oiling mechanism.
2. The sealing device for the medium speed coal mill base according to claim 1, wherein a partition is provided on one side of the sealing ring, a vent and a first discharge port are provided on one side of the sealing shell away from the sealing ring, the vent and the first discharge port are respectively located on two sides of the partition, a filter screen is provided inside the vent, and the driving mechanism and the vent are located on the same side of the partition.
3. The sealing device for the medium speed coal mill base according to claim 1, wherein the oil filling mechanism comprises a piston cylinder, an oil outlet pipe is connected to the bottom of the piston cylinder, one end of the oil outlet pipe penetrates through the fixing ring and is attached to the surface of the sealing ring, the other end of the oil outlet pipe is fixedly connected and communicated with the piston cylinder, a circular piston is arranged inside the piston cylinder, and the circular piston is connected with the driving mechanism.
4. The sealing device for the base of the medium speed coal mill according to claim 3, wherein an oil tank is arranged outside the sealing shell, and the oil tank is connected with the piston cylinder through an oil inlet pipe.
5. The medium speed coal mill base sealing device according to claim 3, wherein the driving mechanism comprises a first connecting rod, the first connecting rod penetrates through the top of the piston cylinder, one end of the first connecting rod is connected with the circular piston, the other end of the first connecting rod is rotatably connected with a second connecting rod, a wind wheel is rotatably connected inside the sealing shell, and the wind wheel is rotatably connected with the second connecting rod.
6. The sealing device for the base of the medium speed coal mill according to claim 5, wherein the first connecting rod is provided with a fixing block, and the fixing block is movably connected with the piston cylinder through a spring.
7. The sealing device for the middle speed coal mill base according to claim 2, wherein the partition plate is provided with a vent hole, the fixing ring is provided with a second discharge hole, the first discharge hole and the second discharge hole are located on the same side of the partition plate, and the bottom of the sealing shell is provided with a third discharge hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121036323.8U CN215197491U (en) | 2021-05-15 | 2021-05-15 | Medium speed pulverizer frame sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121036323.8U CN215197491U (en) | 2021-05-15 | 2021-05-15 | Medium speed pulverizer frame sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215197491U true CN215197491U (en) | 2021-12-17 |
Family
ID=79419276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121036323.8U Expired - Fee Related CN215197491U (en) | 2021-05-15 | 2021-05-15 | Medium speed pulverizer frame sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215197491U (en) |
-
2021
- 2021-05-15 CN CN202121036323.8U patent/CN215197491U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211217 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |