CN103807443A - High-pressure large-torque axial sealing and lubricating system - Google Patents
High-pressure large-torque axial sealing and lubricating system Download PDFInfo
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- CN103807443A CN103807443A CN201410074148.XA CN201410074148A CN103807443A CN 103807443 A CN103807443 A CN 103807443A CN 201410074148 A CN201410074148 A CN 201410074148A CN 103807443 A CN103807443 A CN 103807443A
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Abstract
The invention relates to a high-pressure large-torque axial sealing and lubricating system. A second-stage packing box, second-stage packing and a second-stage gland are arranged on the periphery of the upper portion of a transmission shaft, a first-stage packing box, first-stage packing, an oil separating ring and a first-stage gland are arranged on the periphery of the lower portion of the transmission shaft, the lower end of the second-stage packing box is connected into the first-stage packing box in an inserted mode through middle nut studs, and the second-stage packing box and the first-stage packing box are provided with lubricating oil inlets respectively. The lubricating system comprises a main oil station, an oil supplementing station, a satellite station and a distributor. The main oil station internally comprises a main oil tank, an oil supplementing pump, a main oil filling pump and a main filter, an outlet of the main filter is connected to the satellite station, and the satellite station delivers lubricating oil to lubricating oil inlets through the distributor. By means of the design, the high-pressure large-torque axial sealing and lubricating system is compact in connection and reliable in oil supplying performance, the oil can be automatically supplemented, grading pressure partition and grading lubricating are beneficial to even distribution of radial sealing force and lubrication, abrasions are reduced, and the high-pressure large-torque axial sealing and lubricating system has the advantages of being good in sealing effect and high in operation stability.
Description
Technical field
The present invention relates to a kind of high pressure and large torque axial seal and lubrication system.
Background technique
Packing seal is generally on casing, to make stuffing box, to be rich in compressibility and elastic filler is put into it, rely on the axial pressing force of gland to be converted into radial seal power, utilize the wearing and tearing of the resiliently deformable compensating sealing surface of stuffing box packing, sealed space is hedged off from the outer world, stop up leakage-gap, thereby stop medium to leak outside and play seal action, it is widely used in the sealing of rotation, reciprocal and various state of rest.There is simple in structure, operation and change convenient, material source extensively, easy processing, with low cost, applied widely, seal the features such as reliable.But during as motive sealing, its shortcoming is also just because of the wearing and tearing of the resiliently deformable compensating sealing surface by filler, and therefore wearing and tearing are outstanding problems in packing seal.The wearing and tearing that friction causes directly have influence on gland sealed sealability and working life, comprise the wearing and tearing of filler and rotating shaft, therefore, in the time that leakage rate increases, conventionally need regular compression gland to reach the requirement of sealing.Lubricating of the wear resistance of wearing and tearing and structural design, filler and the axle of stuffing box itself, filler is relevant with the rotating speed of cooling, axle etc.In addition, the structural design of lubrication system of mating above-mentioned seal arrangement is also very complicated, and the reliability of fuel feeding is poor.
Summary of the invention
Be sealed in while being used in motive sealing in order to overcome in prior art common fillers, the wearing and tearing that friction causes directly have influence on gland sealed sealability and working life, and mate the complex structural designs of the lubrication system of above-mentioned seal arrangement, the poor problem of reliability of fuel feeding, the invention provides a kind of high pressure and large torque axial seal and lubrication system, the compact structure of this high pressure and large torque axial seal and lubrication system, not only oil supply performance is reliable, and repairing automatically, dividing potential drop is conducive to the uniform of radial seal power with lubricated with lubricated step by step, reduce wear, good sealing effect, long service life, the stability of operation is high.
The technical solution adopted for the present invention to solve the technical problems is: comprise transmission shaft, be provided with secondary filler casing, secondary filler and secondary gland in the upper periphery of transmission shaft, secondary filler is arranged in secondary filler casing, upper end is compressed by secondary gland, between secondary filler casing and secondary gland, is connected by upper cap nut double-screw bolt; Be provided with one-level filler casing, one-level filler, oil distributing ring and one-level gland in the lower, outer perimeter of transmission shaft, one-level filler and oil distributing ring are successively set in one-level filler casing up and down, lower end is compressed by one-level gland, between one-level filler casing and one-level gland, is connected by lower nut double-screw bolt; Secondary filler casing lower end is plugged in one-level filler casing, is connected between the two by middle nut double-screw bolt; On secondary filler casing and one-level filler casing, be equipped with lubricating oil inlet, lubrication system comprises connected main petrol station, repairing station, satellite station and distributor, in main petrol station, comprise main fuel tank, slippage pump, main filling pump and main filter, slippage pump connects repairing station and main fuel tank, main filling pump and the series connection of main filter, one end is connected to main fuel tank, the other end outlet is connected to satellite station, satellite station connects distributor, electric heater, temperature control apparatus, level meter and fluid level controller are set in main fuel tank, and lubricant oil is delivered to each lubricating oil inlet by distributor.
Filling pump for subsequent use, reserve filter and repairing filter are also set in main petrol station, filling pump for subsequent use and reserve filter series connection, slippage pump and the series connection of repairing filter, the outlet end of reserve filter and the outlet end of main filter are also attached to satellite station, main filling pump and filling pump alternation for subsequent use, in each filter, have built-in visual pollution detection device and differential pressure switch, the import and export two ends of each filter are connected to pressure indicator.
After the outlet end of reserve filter is in parallel with the outlet end of main filter, be connected to satellite station by filter, satellite station comprises satellite fuel tank and satellite filling pump, and distributor delivered to by the lubricant oil in satellite fuel tank by satellite filling pump.
One-way valve, pressure gauge, relief valve and tee ball valve are installed on the export pipeline of distributor, and in the time of loine pressure superelevation, lubricant oil is back to satellite station by relief valve work, and one-way valve prevents that in the time that pipeline oil forces down still internal pressure from pouring in down a chimney.
The surface of contact of secondary gland and oil distributing ring and secondary filler, one-level filler is all with the design of tapering.
The present invention is by above-mentioned specific design, and its system connects compact, and not only oil supply performance is reliable, and repairing automatically, dividing potential drop is conducive to the uniform of radial seal power with lubricated with lubricated step by step, reduces wear, and has advantages of that the stability of good sealing effect, long service life, operation is high.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, detailed content of the present invention is described.
Fig. 1 is the structural representation of seal arrangement in the present invention.
Fig. 2 is the structural representation of lubrication system in the present invention.
Embodiment
As shown in the figure, the present invention includes transmission shaft 1, be provided with secondary filler casing 2, secondary filler 3 and secondary gland 4 in the upper periphery of transmission shaft 1, secondary filler 3 is arranged in secondary filler casing 2, upper end is compressed by secondary gland 4, between secondary filler casing 2 and secondary gland 4, is connected by upper cap nut double-screw bolt 5, be provided with one-level filler casing 6, one-level filler 7, oil distributing ring 8 and one-level gland 9 in the lower, outer perimeter of transmission shaft 1, one-level filler 7 and oil distributing ring 8 are successively set in one-level filler casing 6 up and down, lower end is compressed by one-level gland 9, between one-level filler casing 6 and one-level gland 9, is connected by lower nut double-screw bolt 10, secondary filler casing 2 lower ends are plugged in one-level filler casing 6, are connected between the two by middle nut double-screw bolt 11, on secondary filler casing 2 and one-level filler casing 6, be equipped with lubricating oil inlet 12, lubrication system comprises connected main petrol station 13, repairing station 14, satellite station 15 and distributor 16, in main petrol station 13, comprise main fuel tank 17, slippage pump 18, main filling pump 19 and main filter 20, slippage pump 18 connects repairing station 14 and main fuel tank 17, main filling pump 19 and main filter 20 are connected, one end is connected to main fuel tank 17, the other end outlet is connected to satellite station 15, satellite station 15 connects distributor 16, the interior electric heater 21 that arranges of main fuel tank 17, temperature control apparatus 36, level meter 22 and fluid level controller 23, lubricant oil is delivered to each lubricating oil inlet 12 by distributor 16.Filling pump 24 for subsequent use, reserve filter 25 and repairing filter 26 are also set in main petrol station 13, filling pump 24 for subsequent use and reserve filter 25 are connected, slippage pump 18 and repairing filter 26 are connected, the outlet end of the outlet end of reserve filter 25 and main filter 20 is also attached to satellite station 15, main filling pump 19 and filling pump for subsequent use 24 alternations, in each filter, have built-in visual pollution detection device and differential pressure switch, the import and export two ends of each filter are connected to pressure indicator 27.After the outlet end of the outlet end of reserve filter 25 and main filter 20 is in parallel, be connected to satellite station 15 by filter 28, satellite station 15 comprises satellite fuel tank 29 and satellite filling pump 30, and distributor 16 delivered to by the lubricant oil in satellite fuel tank 29 by satellite filling pump 30.Unidirectional 31, pressure gauge 32, relief valve 33 and tee ball valve 34 are installed on the export pipeline of distributor 16, and in the time of loine pressure superelevation, relief valve 33 is worked lubricant oil is back to satellite station 15, and one-way valve 31 prevents that in the time that pipeline oil forces down still internal pressure from pouring in down a chimney.The surface of contact of secondary gland 4 and oil distributing ring 8 and secondary filler 3, one-level filler 7 is all with the design of tapering 35.High pressure and large torque axial seal of the present invention and lubrication system are one sealing and the Lubrication Design between a kind of stirring shaft and still top stirring port that can be applicable to high pressure, high-temperature stirring equipment, are certainly also not limited to and only mate said apparatus use.Its applying working condition condition is: in still, working pressure is that 5.2MPa, operating temperature 260 are spent, medium is sodium aluminate solution and hot alkaline steam etc., and the power of stirring apparatus configuration is that 45Kw, rotating speed 30rpm, stirring rated torque are 14325Nm, diameter of axle 160mm.Because the rated torque of this stirring apparatus is large, and temperature is high, and the diameter of axle is large, adopt magnetic seal very difficult, and volume is large, expensive, and this temperature magnetic easily lost efficacy, bearing grease easily runs off, and bearing is fragile, and inconvenience etc. is changed in maintenance.And mechanical seal also exists complex structure, seal ring life-span short, expensive, inconvenient situation is changed in maintenance.In the present invention, the casing of seal arrangement adopts upper and lower two-layer configuration design, and dividing potential drop, with lubricated, effectively guarantees filler pre-pressing and lubricated needs step by step; improve the reliability of sealing; under use state, lubricant oil is injected by lubricating oil inlet 12, and filler adopts wear-resistant packing; this packing is that thermosetting property high-performance synthetic line floods special oiling agent; in braiding process, again flood high-quality PTFE emulsion, have 1.. high strength, wear-resistant; but do not hinder axle, easily cutting; 2.. thermally-stabilised, low-thermal-expansion, the dimensionally stable in the situation that of temperature and pressure alternation; 3.. outstanding resistant to chemical media, without spot corrosion, without sclerosis, resistant to elevated temperatures feature; Thermal spraying chromium oxide is taked on the surface that transmission shaft 1 coordinates with filler, and surface hardness reaches 1000HV, and grinding is to degree of finish Ra0.4um, reduces the wearing and tearing of transmission shaft 1 matching surface and filler, improves working life and the sealing of filler.Realization meet working pressure 5.2MPa, 260 ℃ of temperature, rotating speed 30 r p m, the diameter of axle 160 m m, seal request.Lubrication system in the present invention, form a set of energy accurate quantification by main petrol station 13, repairing station 14 and several satellite stations 15 and provide high-quality lubricated to stuffing box packing, reduce wear, improve Reliability of Packing Seal and working life, and prevent that medium from passing through filler seepage.1. two same main filling pumps 19 and filling pump for subsequent use 24 for the interior employing of main petrol station 13, the mode of operation of employing the using and the reserved, gives interior satellite fuel tank 29 fuel feeding of Duo Tai satellite station 15.The temperature range that electric heater 21, temperature control apparatus 36 can guarantee that the interior oil product temperature of main fuel tank 17 is being set is set in the main fuel tank 17 in main petrol station 13, level meter 22 and fluid level controller 23 in fuel tank, are also equipped with, fluid level controller 23 is used in conjunction with repairing station 14, just can realize automatic makeup functional oil.All install a filter additional at the main filling pump 19 of main petrol station 13 and the exit portion of filling pump for subsequent use 24.In the time that wherein the filter of a pump discharge occurs to stop up, control system will automatically switch to the loop of filling pump 24 for subsequent use, and uses reserve filter 25; In each filter, have built-in visual pollution detection device and differential pressure switch, user can judge the pollution level of oil product very easily by observing visual pollution detection device and monitoring dustiness switch.In the time of the filter core excessively dirty (being that oil product is excessively dirty) occurring in filter, system can automatically switch to another one filter, and system is unlikely to occur to shut down the problem of maintenance.User can observe after the dirty fault of filter, and change online filter and consider core, and without shutdown.2. slippage pump 18 of repairing station 14 use, in the time that the liquid level of main fuel tank 17 is low, can be by switching the entrance ball valve of slippage pump 18, make slippage pump 18 can from oiling drum directly pumping lubricant oil in main fuel tank 17.In the time that the liquid level of main fuel tank 17 arrives a high position, slippage pump 18 quits work.On the export pipeline of repairing part, configured a monotubular filter 37, this monotubular filter 37 also has pollution detection function, can realize two functions of visual detection and electric monitoring.3. each satellite station 15 can provide lubricated with mode of operation, accurate quantification intermittently for the stuffing box packing case of many cover mixing plants, and its working pressure is adjustable, and flow is adjustable.Each satellite station 15 all can independently control, and has enough oil masses at the satellite filling pump 30 in satellite station 15, and satellite station 15 can not rely on main petrol station 13 independent operatings, and upper-position unit can in real time, independently detect the runnability of each satellite station 15.Satellite station 15 can be furnished with two same oil feed pumps, adopts the mode of operation of the using and the reserved; 4. whether on distributor 16, clogging indicator is all equipped with in each outlet, on distributor 16, configures induction switch, detect distributor and move normally.When a certain lubricating point pipe blocking, choke indicator can be indicated, and the export pipeline of each distributor 16 is provided with one-way valve 31, pressure gauge 32, relief valve 33 and tee ball valve 34, and in the time of loine pressure superelevation, relief valve 33 is worked, and oil is back to satellite fuel tank 29.One-way valve 31, in the time that pipeline oil forces down, prevents that still internal pressure from pouring in down a chimney, and lubricant oil is delivered to each lubricating oil inlet 12 by distributor 16.Above-described embodiment is described the preferred implementation of high pressure and large torque axial seal of the present invention and lubrication system; not design and the scope of invention are limited; do not departing under the present invention program's prerequisite; various external form modification and improvement that those skilled in the art make technological scheme of the present invention, all should fall into the protection domain of high pressure and large torque axial seal of the present invention and lubrication system.
Claims (6)
1. a high pressure and large torque axial seal and lubrication system, comprise transmission shaft, it is characterized in that being provided with secondary filler casing (2), secondary filler (3) and secondary gland (4) in the upper periphery of transmission shaft (1), secondary filler (3) is arranged in secondary filler casing (2), upper end is compressed by secondary gland (4), between secondary filler casing (2) and secondary gland (4), is connected by upper cap nut double-screw bolt (5), be provided with one-level filler casing (6), one-level filler (7), oil distributing ring (8) and one-level gland (9) in the lower, outer perimeter of transmission shaft (1), one-level filler (7) and oil distributing ring (8) are successively set in one-level filler casing (6) up and down, lower end is compressed by one-level gland (9), between one-level filler casing (6) and one-level gland (9), is connected by lower nut double-screw bolt (10), secondary filler casing (2) lower end is plugged in one-level filler casing (6), is connected between the two by middle nut double-screw bolt (11), on secondary filler casing (2) and one-level filler casing (6), be equipped with lubricating oil inlet (12), lubrication system comprises connected main petrol station (13), repairing station (14), satellite station (15) and distributor (16), in main petrol station (13), comprise main fuel tank (17), slippage pump (18), main filling pump (19) and main filter (20), slippage pump (18) connects repairing station (14) and main fuel tank (17), main filling pump (19) and main filter (20) series connection, one end is connected to main fuel tank (17), the other end outlet is connected to satellite station (15), satellite station (15) connects distributor (16), electric heater (21) is set in main fuel tank (17), temperature control apparatus (36), level meter (22) and fluid level controller (23), lubricant oil is delivered to each lubricating oil inlet (12) by distributor (16).
2. high pressure and large torque axial seal according to claim 1 and lubrication system, it is characterized in that also arranging filling pump for subsequent use (24) in main petrol station (13), reserve filter (25) and repairing filter (26), filling pump for subsequent use (24) and reserve filter (25) series connection, slippage pump (18) and repairing filter (26) series connection, the outlet end of the outlet end of reserve filter (25) and main filter (20) is also attached to satellite station (15), main filling pump (19) and filling pump for subsequent use (24) alternation, in each filter, there are built-in visual pollution detection device and differential pressure switch, the import and export two ends of each filter are connected to pressure indicator (27).
3. high pressure and large torque axial seal according to claim 2 and lubrication system, it is characterized in that the outlet end of reserve filter (25) and the outlet end of main filter (20) is in parallel is connected to satellite station (15) by filter (28) afterwards, satellite station (15) comprises satellite fuel tank (29) and satellite filling pump (30), and distributor (16) delivered to by the lubricant oil in satellite fuel tank (29) by satellite filling pump (30).
4. according to high pressure and large torque axial seal and lubrication system described in claim 1 or 2 or 3, it is characterized in that, on the export pipeline of distributor (16), one-way valve (31), pressure gauge (32), relief valve (33) and tee ball valve (34) are installed, in the time of loine pressure superelevation, lubricant oil is back to satellite station (15) by relief valve (33) work, and one-way valve (31) prevents that in the time that pipeline oil forces down still internal pressure from pouring in down a chimney.
5. according to high pressure and large torque axial seal and lubrication system described in claim 1 or 2 or 3, the surface of contact that it is characterized in that secondary gland (4) and oil distributing ring (8) and secondary filler (3), one-level filler (7) is all with the design of tapering (35).
6. high pressure and large torque axial seal according to claim 4 and lubrication system, the surface of contact that it is characterized in that secondary gland (4) and oil distributing ring (8) and secondary filler (3), one-level filler (7) is all with the design of tapering (35).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410074148.XA CN103807443A (en) | 2014-03-03 | 2014-03-03 | High-pressure large-torque axial sealing and lubricating system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410074148.XA CN103807443A (en) | 2014-03-03 | 2014-03-03 | High-pressure large-torque axial sealing and lubricating system |
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| CN103807443A true CN103807443A (en) | 2014-05-21 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113294376A (en) * | 2021-06-29 | 2021-08-24 | 哈尔滨工业大学 | Balance seal for nuclear main pump and manufacturing method thereof |
| CN114178003A (en) * | 2021-11-08 | 2022-03-15 | 煤科院节能技术有限公司 | Horizontal fine grinding machine |
| CN115059862A (en) * | 2022-02-22 | 2022-09-16 | 贵州乌江水电开发有限责任公司 | Intelligent hydraulic generator |
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| JPS5297077A (en) * | 1976-02-12 | 1977-08-15 | Toshiba Corp | Lubricating oil feeder |
| CN202756878U (en) * | 2012-08-30 | 2013-02-27 | 四川皇龙智能破碎技术股份有限公司 | Double-loop multi-point lubricating device for crusher |
| CN203140607U (en) * | 2013-03-19 | 2013-08-21 | 湖北三环锻压设备有限公司 | Lubricating system of mechanical expanding machine |
| CN103335105A (en) * | 2013-05-08 | 2013-10-02 | 南通密炼捏合机械有限公司 | Special kneader spindle nose sealing device for CMC |
| CN103599943A (en) * | 2013-11-19 | 2014-02-26 | 启东中冶润滑设备有限公司 | Technological rolling lubricating system of finish rolling mill for hot-rolled strip steel |
| CN203730761U (en) * | 2014-03-03 | 2014-07-23 | 浙江恒丰泰减速机制造有限公司 | High-pressure large-torque axial seal and lubricating system |
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2014
- 2014-03-03 CN CN201410074148.XA patent/CN103807443A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5297077A (en) * | 1976-02-12 | 1977-08-15 | Toshiba Corp | Lubricating oil feeder |
| CN202756878U (en) * | 2012-08-30 | 2013-02-27 | 四川皇龙智能破碎技术股份有限公司 | Double-loop multi-point lubricating device for crusher |
| CN203140607U (en) * | 2013-03-19 | 2013-08-21 | 湖北三环锻压设备有限公司 | Lubricating system of mechanical expanding machine |
| CN103335105A (en) * | 2013-05-08 | 2013-10-02 | 南通密炼捏合机械有限公司 | Special kneader spindle nose sealing device for CMC |
| CN103599943A (en) * | 2013-11-19 | 2014-02-26 | 启东中冶润滑设备有限公司 | Technological rolling lubricating system of finish rolling mill for hot-rolled strip steel |
| CN203730761U (en) * | 2014-03-03 | 2014-07-23 | 浙江恒丰泰减速机制造有限公司 | High-pressure large-torque axial seal and lubricating system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113294376A (en) * | 2021-06-29 | 2021-08-24 | 哈尔滨工业大学 | Balance seal for nuclear main pump and manufacturing method thereof |
| CN114178003A (en) * | 2021-11-08 | 2022-03-15 | 煤科院节能技术有限公司 | Horizontal fine grinding machine |
| CN115059862A (en) * | 2022-02-22 | 2022-09-16 | 贵州乌江水电开发有限责任公司 | Intelligent hydraulic generator |
| CN115059862B (en) * | 2022-02-22 | 2024-03-22 | 贵州乌江水电开发有限责任公司 | Intelligent hydraulic generator |
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Application publication date: 20140521 |