CN108043566B - Main shaft seal monitoring device - Google Patents
Main shaft seal monitoring device Download PDFInfo
- Publication number
- CN108043566B CN108043566B CN201711325038.6A CN201711325038A CN108043566B CN 108043566 B CN108043566 B CN 108043566B CN 201711325038 A CN201711325038 A CN 201711325038A CN 108043566 B CN108043566 B CN 108043566B
- Authority
- CN
- China
- Prior art keywords
- main shaft
- fixedly connected
- movable rod
- wall
- monitoring device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/14—Edge runners, e.g. Chile mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/04—Safety devices
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a main shaft seal monitoring device which comprises a shell, wherein a main shaft penetrates through the inner bottom of the shell, the main shaft is rotatably connected with the lower end of the shell, a grinding disc is fixedly connected to the upper end of the main shaft, L-shaped plates matched with the edge of the grinding disc are arranged on the inner wall, opposite to the shell, of the shell, monitoring equipment is arranged on one side, located on the grinding disc, of each L-shaped plate, the monitoring equipment comprises a cylinder fixedly connected to the side wall of each L-shaped plate, a pressure detection device is fixedly connected to the inner wall of the cylinder, a movable rod is arranged in the cylinder, the movable rod is fixedly connected to the side wall of the pressure detection device through a first elastic device, and strip-. The invention has simple structure, can monitor the sealing performance of the equipment in real time, can ensure that the equipment can be maintained in time when in failure, and ensures the safe and efficient operation of the equipment.
Description
Technical Field
The invention relates to the technical field of shaft sealing, in particular to a main shaft sealing monitoring device.
Background
A medium-speed disk-type coal mill for preparing powdered coal features that a vertical rotary shaft with 2m diameter is used to drive a grinding disk, which in turn drives a rotary grinding roller, the grinding disk and grinding roller move relatively to grind coal into powder, and the 300 deg.C hot air is used to take away the powder to complete the pulverizing process. In order to prevent the hot air carrying the pulverized coal from leaking out of the main shaft in the production process, two sealing methods are adopted. Firstly, carbon fiber high-temperature packing is sealed, but the materials are inelastic, and in addition, a vertical rotating shaft with a large diameter has an eccentric phenomenon, so that hot air and a large amount of pulverized coal are blown out frequently; although the sealing device for changing the base seal of the medium-speed mill effectively solves the problems of powder leakage and air leakage, the grinding disc swings left and right due to high internal temperature, the gap between the inner seal and the grinding disc is enlarged, coal powder leaks into the outer seal, abrasion is generated between the outer seal and a shaft, the outer seal is damaged, and the main shaft is abraded to generate leakage.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a main shaft seal monitoring device which can monitor the sealing performance of equipment in real time, ensure that the equipment can be maintained in time when in failure and ensure the safe and efficient operation of the equipment.
In order to achieve the purpose, the invention adopts the following technical scheme:
a main shaft sealing monitoring device comprises a shell, wherein a main shaft penetrates through the inner bottom of the shell and is connected with the lower end of the shell in a rotating mode, a grinding disc is fixedly connected to the upper end of the main shaft, L-shaped plates matched with the edges of the grinding disc are arranged on the inner walls, opposite to the shell, of the shell, monitoring equipment is arranged on one side, located on the grinding disc, of each L-shaped plate and comprises a cylinder fixedly connected to the side wall of each L-shaped plate, a pressure detection device is fixedly connected to the inner wall of each cylinder, a movable rod is arranged in each cylinder and fixedly connected to the side wall of the pressure detection device through a first elastic device, strip-shaped grooves are formed in the inner walls, opposite to the cylinders, buckles matched with the strip-shaped grooves are arranged on the side walls of the movable rods, supporting legs are arranged at the lower end of the shell, a driving, the tail end of the output shaft of the driving motor is fixedly connected to the lower end of the main shaft.
Preferably, one end of the movable rod, which is far away from the first elastic device, is rotatably connected with a roller, and the roller is provided with an annular groove along the circumferential direction of the roller.
Preferably, the lower extreme of supporting leg is equipped with the fixing base, the fixing base passes through expansion screw and ground fixed connection.
Preferably, the buckle comprises a connecting piece fixedly connected to the side wall of the movable rod, and a protrusion is arranged on the side wall of the connecting piece.
Preferably, the first elastic device is a spring, one end of the first elastic device is fixedly connected to the side wall of the pressure detection device, and one end of the first elastic device, which is far away from the pressure detection device, is fixedly connected to the side wall of the movable rod.
When the pressure detection device is used, the driving motor rotates to drive the main shaft to rotate so as to drive the grinding disc to rotate, the idler wheels on the monitoring device abut against the side wall of the grinding disc, when the sealing is good, the grinding disc is small in vibration, the pressure value detected by the pressure detection device is stable, when the pressure value is abnormal, the problem of sealing performance is solved, and the machine needs to be stopped to overhaul the air seal of the main shaft. The invention has simple structure, can monitor the sealing performance of the equipment in real time, can ensure that the equipment can be maintained in time when in failure, and ensures the safe and efficient operation of the equipment.
Drawings
Fig. 1 is a schematic structural diagram of a spindle seal monitoring device according to the present invention;
fig. 2 is an enlarged schematic view of a structure at a position a of the spindle seal monitoring device according to the present invention;
FIG. 3 is a schematic structural view of the spindle air sealing device of the medium-speed mill, to which the present invention is applied;
FIG. 4 is an enlarged schematic view of the structure at the position B of the spindle air sealing device of the medium-speed mill, which is applied to the spindle air sealing device of the medium-speed mill, according to the present invention;
fig. 5 is an enlarged schematic view of a structure at a position C of the spindle air sealing device of the medium-speed mill, which is applied to the spindle air sealing device of the medium-speed mill.
In the figure: the device comprises a shell 1, a 2L-shaped plate, a 3 spindle, a 4 arc-shaped high-temperature sealing ring, a 5 circular ring, a 6 fixed rod, a 7 driving motor, an 8 fixed frame, a 9 fixed seat, 10 supporting legs, 11 outer sealing rings, 12 grinding discs, 13 pressure detection devices, 14 first elastic devices, 15 buckles, 16 cylinders, 17 rollers, 18 movable rods, 19 mounting plates, 20 limiting rods, 21 clamping plates, 22 limiting blocks, 23 guide rods, 24 threaded rods, 25 worm gears, 26 worms, 27 rotating wheels, 28 cylinders, 29 second elastic devices, 30 sleeves, 31 connecting rods, 32 fixed pieces and 33 fixed blocks.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1: referring to fig. 1-2, a main shaft seal monitoring device comprises a housing 1, a main shaft 3 is arranged at the inner bottom of the housing 1 in a penetrating manner, the main shaft 3 is rotatably connected with the lower end of the housing 1, a grinding disc 12 is fixedly connected with the upper end of the main shaft 3, when the device is used, a driving motor 7 rotates to drive the main shaft 3 to rotate and further drive the grinding disc 12 to rotate, L-shaped plates 2 matched with the edge of the grinding disc 12 are arranged on the inner walls of the housing 1, a monitoring device is arranged on one side of each L-shaped plate 2, a roller 17 is rotatably connected with one end of a movable rod 18 far away from a first elastic device 14, an annular groove is arranged on the roller 17 along the circumferential direction of the roller, the roller 17 on the monitoring device is abutted against the side wall of the grinding disc 12, when the seal is good, the grinding disc 12 vibrates slightly, the pressure value detected by a pressure detection device 13 is, the lower extreme of casing 1 is equipped with supporting leg 10, and the below of casing 1 is equipped with driving motor 7, and driving motor 7 passes through mount 8 fixed connection on the lateral wall of supporting leg 10, and the terminal fixed connection of driving motor 7 output shaft is at the lower extreme of main shaft 3.
According to the invention, a fixed seat 9 is arranged at the lower end of a supporting leg 10, the fixed seat 9 is fixedly connected with the ground through an expansion screw, a monitoring device comprises a cylinder 16 fixedly connected with the side wall of an L-shaped plate 2, a pressure detection device 13 is fixedly connected with the inner wall of the cylinder 16, a movable rod 18 is arranged in the cylinder 16, the movable rod 18 is fixedly connected with the side wall of the pressure detection device 13 through a first elastic device 14, strip-shaped grooves are formed in the opposite inner walls of the cylinder 16, buckles 15 matched with the strip-shaped grooves are arranged on the side wall of the movable rod 18, each buckle 15 comprises a connecting piece fixedly connected with the side wall of the movable rod 18, bulges are arranged on the side wall of the connecting piece, the first elastic device 14 is a spring, one end of the first elastic device 14 is fixedly connected with the side wall of the pressure detection device 13, and one.
Example 2: referring to fig. 2-4, the invention is applied to a spindle air sealing device of a medium-speed grinding mill, comprising a housing 1, a spindle 3 is arranged at the inner bottom of the housing 1 in a penetrating way, the spindle 3 is rotatably connected with the lower end of the housing 1, a grinding disc 12 is fixedly connected with the upper end of the spindle 3, when in use, a driving motor 7 rotates to drive the spindle 3 to rotate and further drive the grinding disc 12 to rotate, L-shaped plates 2 matched with the edges of the grinding disc 12 are arranged on the opposite inner walls of the housing 1, a monitoring device is arranged on one side of the grinding disc 12 of the L-shaped plates 2, a roller 17 is rotatably connected with one end of a movable rod 18 far away from a first elastic device 14, an annular groove is arranged on the roller 17 along the circumferential direction, the roller 17 on the monitoring device is abutted against the side wall of the grinding disc 12, when the sealing is good, the grinding disc 12 vibrates, the spindle air seal is maintained by stopping a machine, two mounting plates 19 are fixedly connected to a spindle 3, a groove is formed in the middle of each mounting plate 19, two device cavities are formed in each mounting plate 19, a worm wheel 25 is rotatably connected to the inner wall of each device cavity, two worms 26 penetrate through the upper end of each mounting plate 19, a rotating wheel 27 is arranged at one end of each worm 26, one end, far away from the rotating wheel 27, of each worm 26 is rotatably connected to the inner wall of each device cavity, two round cavities are formed in the inner wall of each groove and are respectively communicated with the device cavities, a cylinder 28 is rotatably connected to the side wall of each worm wheel 25 and is located in each round cavity, a threaded rod 24 is arranged in each cylinder 28, a guide groove is formed in the inner wall of each cylinder 28, a guide rod 23 is arranged in each guide groove, a limiting block 22 is sleeved on each guide rod 23, the upper end, the side wall of the clamping plate 21 is provided with the limiting rod 20, when in maintenance, an operator can rotate the rotating wheel 27, the rotating wheel 27 rotates to drive the worm 26 to rotate, the worm 26 rotates to drive the worm wheel 25 to rotate, the worm wheel 25 rotates to drive the cylinder 28 to rotate, the cylinder 28 rotates to drive the threaded rod 24 to move, further moving the clamping plate 21 to separate the limiting rod 20 from the limiting groove, arranging the arc-shaped high-temperature sealing rings 4 in the two grooves, taking down the arc-shaped high-temperature sealing rings 4, checking its regularity, the lateral wall of arc high temperature seal circle 4 be equipped with gag lever post 20 matched with spacing groove, the lower extreme fixedly connected with ring 5 of mill 12, arc high temperature seal circle 4 offsets with the lateral wall of ring 5, the lower extreme of casing 1 is equipped with supporting leg 10, the below of casing 1 is equipped with driving motor 7, driving motor 7 passes through mount 8 fixed connection on the lateral wall of supporting leg 10, the terminal fixed connection of driving motor 7 output shaft is at the lower extreme of main shaft 3.
Wherein, the lower end of the casing 1 is provided with an outer sealing ring 11, the side wall of the outer sealing ring 11 is provided with two fixed blocks 33, the fixed blocks 33 are fixedly connected with a sleeve 30 through a second elastic device 29, one end of the sleeve 30 far away from the second elastic device 29 is rotatably connected with a fixed block 32, the two fixed blocks 32 are fixedly connected through a fixed rod 6, one end of the fixed rod 6 far away from the fixed block 32 is obliquely provided with a connecting rod 31, the connecting rod 31 is rotatably connected on the side wall of the fixed rod 6, one end of the connecting rod 31 far away from the fixed rod 6 is rotatably connected with a sealing body, the lower end of the supporting leg 10 is provided with a fixed seat 9, the fixed seat 9 is fixedly connected with the ground through an expansion screw, the monitoring equipment comprises a cylinder 16 fixedly connected on the side wall of the L-shaped plate 2, the inner wall of the cylinder, the relative inner wall of drum 16 all is equipped with the bar groove, the lateral wall of movable rod 18 be equipped with bar groove matched with buckle 15, buckle 15 includes the connecting piece of fixed connection at the 18 lateral walls of movable rod, the lateral wall of connecting piece is equipped with the arch, first resilient means 14 is the spring, the one end fixed connection of first resilient means 14 is on pressure measurement 13's lateral wall, the one end fixed connection that first resilient means 14 kept away from pressure measurement 13 is on the lateral wall of movable rod 18.
In the invention, when the device is used, the driving motor 7 rotates to drive the main shaft 3 to rotate so as to drive the grinding disc 12 to rotate, the roller 17 on the monitoring device is abutted against the side wall of the grinding disc 12, when the sealing is good, the grinding disc 12 vibrates less, the pressure value detected by the pressure detection device 13 is more stable, when the value is abnormal, the problem of the sealing performance is shown, and the machine is required to be stopped to overhaul the air seal of the main shaft.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. The utility model provides a main shaft seal monitoring device, includes casing (1), its characterized in that, the interior bottom of casing (1) runs through and is equipped with main shaft (3), main shaft (3) are rotated with the lower extreme of casing (1) and are connected, the upper end fixedly connected with mill (12) of main shaft (3), the inner wall that casing (1) is relative all is equipped with L shaped plate (2) with mill (12) edge matched with, one side that L shaped plate (2) are located mill (12) is equipped with supervisory equipment, supervisory equipment includes drum (16) of fixed connection at L shaped plate (2) lateral wall, the inner wall fixedly connected with pressure measurement device (13) of drum (16), be equipped with movable rod (18) in drum (16), movable rod (18) are through first resilient means (14) fixed connection on the lateral wall of pressure measurement device (13), the inner wall that drum (16) is relative all is equipped with the bar groove, the lateral wall of movable rod (18) is equipped with buckle (15) with bar groove matched with, the lower extreme of casing (1) is equipped with supporting leg (10), the below of casing (1) is equipped with driving motor (7), driving motor (7) are through mount (8) fixed connection on the lateral wall of supporting leg (10), the terminal fixed connection of driving motor (7) output shaft is at the lower extreme of main shaft (3).
2. A spindle seal monitoring device according to claim 1, characterised in that a roller (17) is rotatably connected to the end of the movable rod (18) remote from the first resilient means (14), said roller (17) being provided with an annular groove along its circumference.
3. A spindle seal monitoring device according to claim 1, characterised in that the lower end of the supporting leg (10) is provided with a fixed seat (9), and the fixed seat (9) is fixedly connected with the ground through an expansion screw.
4. A spindle seal monitoring device according to claim 1, characterised in that the catch (15) comprises a connecting piece fixedly connected to the side wall of the movable rod (18), the side wall of the connecting piece being provided with a protrusion.
5. A spindle seal monitoring device according to claim 1, characterized in that the first elastic means (14) is a spring, one end of the first elastic means (14) is fixedly connected to the side wall of the pressure detecting means (13), and the end of the first elastic means (14) far away from the pressure detecting means (13) is fixedly connected to the side wall of the movable rod (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711325038.6A CN108043566B (en) | 2017-12-13 | 2017-12-13 | Main shaft seal monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711325038.6A CN108043566B (en) | 2017-12-13 | 2017-12-13 | Main shaft seal monitoring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108043566A CN108043566A (en) | 2018-05-18 |
| CN108043566B true CN108043566B (en) | 2020-02-18 |
Family
ID=62132326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711325038.6A Active CN108043566B (en) | 2017-12-13 | 2017-12-13 | Main shaft seal monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108043566B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114689128B (en) * | 2022-05-31 | 2022-08-19 | 青岛道万科技有限公司 | Special temperature and pressure measuring instrument and method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1155750A1 (en) * | 2000-05-19 | 2001-11-21 | HOSOKAWA ALPINE Aktiengesellschaft & Co. OHG | Centerable slit sealing, particularly for mills and sifters |
| CN201227593Y (en) * | 2008-07-07 | 2009-04-29 | 金秀浩 | Grinding roll bearing and sealing device of roller disk type coal grinding machine |
| CN102278473A (en) * | 2011-05-31 | 2011-12-14 | 郑州大学 | Dust sealing system and mill comprising same |
| CN102343296A (en) * | 2011-10-19 | 2012-02-08 | 江苏恒远国际工程有限公司 | Grinding roller sealing device for vertical roller mill |
| CN103721795A (en) * | 2013-12-19 | 2014-04-16 | 马鞍山市荣亿密封材料有限责任公司 | Spindle air-sealing device of medium-speed mill |
| CN105396655A (en) * | 2015-12-07 | 2016-03-16 | 宜兴市泰和机械有限公司 | Combined sealing device of grinding roller shaft |
| CN205226380U (en) * | 2015-12-30 | 2016-05-11 | 神华集团有限责任公司 | Seal structure and coal pulverizer of coal pulverizer |
| CN107420547A (en) * | 2017-09-26 | 2017-12-01 | 马鞍山市荣亿密封材料有限责任公司 | A kind of high efficiency mill stand sealing structure |
-
2017
- 2017-12-13 CN CN201711325038.6A patent/CN108043566B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1155750A1 (en) * | 2000-05-19 | 2001-11-21 | HOSOKAWA ALPINE Aktiengesellschaft & Co. OHG | Centerable slit sealing, particularly for mills and sifters |
| CN201227593Y (en) * | 2008-07-07 | 2009-04-29 | 金秀浩 | Grinding roll bearing and sealing device of roller disk type coal grinding machine |
| CN102278473A (en) * | 2011-05-31 | 2011-12-14 | 郑州大学 | Dust sealing system and mill comprising same |
| CN102343296A (en) * | 2011-10-19 | 2012-02-08 | 江苏恒远国际工程有限公司 | Grinding roller sealing device for vertical roller mill |
| CN103721795A (en) * | 2013-12-19 | 2014-04-16 | 马鞍山市荣亿密封材料有限责任公司 | Spindle air-sealing device of medium-speed mill |
| CN105396655A (en) * | 2015-12-07 | 2016-03-16 | 宜兴市泰和机械有限公司 | Combined sealing device of grinding roller shaft |
| CN205226380U (en) * | 2015-12-30 | 2016-05-11 | 神华集团有限责任公司 | Seal structure and coal pulverizer of coal pulverizer |
| CN107420547A (en) * | 2017-09-26 | 2017-12-01 | 马鞍山市荣亿密封材料有限责任公司 | A kind of high efficiency mill stand sealing structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108043566A (en) | 2018-05-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207318020U (en) | A kind of dry type air tightness detection machine of filter | |
| CN108043566B (en) | Main shaft seal monitoring device | |
| CN103192745B (en) | Driller operating seat of driller room of petroleum drilling machine | |
| CN103721795B (en) | A kind of medium-speed pulverizer main shaft air seal set | |
| CN202964383U (en) | Grinding drive device for grinder | |
| CN204309523U (en) | Electric vehicle motor non-inflatable tyre fixed sturcture | |
| CN107961862B (en) | A kind of medium-speed pulverizer main shaft air seal set | |
| CN103316923A (en) | Clamping ring for roller bearing block | |
| CN107792616A (en) | Belt offset detecting device | |
| CN201827365U (en) | Assembly type two-end face mechanical sealing device | |
| CN201783347U (en) | Base seal of medium-speed mill | |
| CN202026187U (en) | Sealed reluctance motor | |
| CN205471324U (en) | Waterproof dustproof bearing roller sealing device of non -contact symmetry labyrinth | |
| CN206598289U (en) | The power module and robot of single transport axle | |
| CN204053844U (en) | The CT frock of X-ray detecting equipment | |
| CN210034406U (en) | Dustproof device of rotating wheel mill bearing seat | |
| CN108927266B (en) | Airtight seal structure of Raymond mill roller | |
| CN110201753A (en) | Using the Burnisher apparatus and grinding mechanism of air sealed oil lubricating | |
| CN206723388U (en) | A kind of gear transmission structure of granulator | |
| CN203806683U (en) | Automatic suction apparatus | |
| CN206190908U (en) | Seal structure of mine tailing breaker is exclusively used in | |
| CN206117362U (en) | Motor cover and motor casing's assembly structure | |
| CN203791006U (en) | Clearance self-compensating fine-grinding pulverizer for stones | |
| CN103657884B (en) | Centrifugal machine scraper drive unit | |
| CN203448395U (en) | Rotation-type swelling-shrinking device of paper packing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |