CN111729895B - Disassembly-free cleaning device and cleaning method for bearing seat of cold rolling unit and application - Google Patents
Disassembly-free cleaning device and cleaning method for bearing seat of cold rolling unit and application Download PDFInfo
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- CN111729895B CN111729895B CN201910229174.8A CN201910229174A CN111729895B CN 111729895 B CN111729895 B CN 111729895B CN 201910229174 A CN201910229174 A CN 201910229174A CN 111729895 B CN111729895 B CN 111729895B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
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- General Chemical & Material Sciences (AREA)
- Cleaning By Liquid Or Steam (AREA)
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Abstract
The invention provides a disassembly-free cleaning device for a bearing seat of a cold rolling unit, a cleaning method and application, wherein the device comprises an ultrasonic generator and a closed flushing tank matched with the ultrasonic generator, a high-frequency pulse oscillation generator is arranged in the closed flushing tank, a bearing seat to be cleaned is placed in the closed flushing tank, an ultrasonic cleaning container is formed in an inner cavity of the bearing seat to be cleaned, a lubricating liquid inlet and outlet channel of a lubricating system of the bearing seat to be cleaned respectively forms a cleaning liquid inlet and a cleaning liquid outlet of the ultrasonic cleaning container, the cleaning liquid inlet is connected with a cleaning liquid storage container through a multistage centrifugal pump, the cleaning liquid outlet is connected with the cleaning liquid storage container through a cleaning liquid return pipeline, and a shaft body of the bearing seat to be cleaned is connected with a centrifugal driving rotating shaft.
Description
Technical Field
The invention relates to the technical field of equipment maintenance for cold rolling production, in particular to a cleaning-free device for a bearing seat of a cold rolling unit, a cleaning method and application.
Background
In the prior art, for an inner bearing of a bearing seat of an intermediate roll of a cold rolling single stand, when a maintenance period is reached (generally, 150 hours on line), manual cleaning and maintenance are performed after manual disassembly, otherwise, the inner bearing is continuously used on the machine, which has great influence on the stable and smooth production of a rolling mill, and further causes shutdown accidents due to the fact that improper treatment can generate the conditions of bearing blocking and the like.
Moreover, although the manual cleaning process is relatively mature, there are still some disadvantages in view of the whole: 1. the time for assembling and disassembling the bearing seat is long; 2. the cleaning efficiency of the bearing seat is low; 3. the qualification rate after cleaning is not high; 4. the cleaning materials (chemical cleaning agents) are consumed and polluted.
On the other hand, the conventional bearing seat cleaning device also has some disadvantages: 1. each cleaning must completely disassemble the bearing block components; 2. each cleaning is mainly carried out by heating, soaking and shaking, and the consumed time is too long; 3. the cleaning materials (chemical cleaning agents) are consumed and polluted.
Because the cold rolling-intermediate roll bearing seat is mainly applied to a 20-roll reversible single frame, the cold rolling-intermediate roll bearing seat has long machine time and is always in a high-speed rotating state, and the cleanness of emulsion for providing lubrication for the cold rolling-intermediate roll bearing seat by a machine set is poor, the monthly consumption of the intermediate roll bearing is always high, and great pressure is brought to the production cost and the turnover of spare parts. Moreover, sometimes, an intermediate bearing causes a unit to be in a fault shutdown due to failure, and the production smoothness of the unit is directly influenced.
Disclosure of Invention
The invention aims to provide a cleaning device for cleaning an internal bearing and an internal pipeline of a bearing seat in an efficient, rapid and environment-friendly mode in a dismounting-free state.
The technical problem to be solved can be implemented by the following technical scheme.
The utility model provides a belt cleaning device is exempted from to demolish to cold rolling mill train bearing frame, includes an ultrasonic generator and the airtight flushing tank of assorted with it, be equipped with high frequency pulse oscillation generator in the airtight flushing tank, wait to wash the bearing frame lay in the airtight flushing tank, the inner chamber of waiting to wash the bearing frame forms an ultrasonic cleaning container, the lubricated liquid access passage who waits to wash bearing frame lubricating system forms the washing liquid inlet and the liquid outlet of this ultrasonic cleaning container respectively, the washing liquid inlet is through a multistage centrifugal pump connection washing liquid holding vessel, the washing liquid outlet is connected through washing liquid backflow pipeline the washing liquid holding vessel, the shaft body coupling centrifugal drive pivot of waiting to wash the bearing frame.
As a further improvement of the technical scheme, the multistage centrifugal pump is a multistage high-speed variable-frequency centrifugal pump.
Also as the further improvement of the technical proposal, the device also comprises a lifting mechanism for adjusting the placing height of the bearing seat to be cleaned and a clamping and positioning mechanism for positioning the bearing seat to be cleaned.
Wherein, the clamping and positioning mechanism at least comprises a limit position stop component for preventing the bearing seat to be cleaned from axially excessive movement.
As a preferred embodiment of the cleaning device, a pressure reducing valve is preferably arranged on a connecting pipeline between the multistage centrifugal pump and the cleaning liquid inlet.
Also as a preferred embodiment of the present cleaning apparatus, the apparatus further includes a heating device for heating the cleaning solution stored in the cleaning solution storage container.
The invention also provides a cleaning method for cleaning a bearing seat of a cold rolling unit by using the cleaning device, wherein the ultrasonic cleaning frequency is 28kHz-40 kHz.
As a further improvement of the cleaning method, the step of pre-cleaning the inside of the bearing seat before ultrasonic cleaning is also included, and the step comprises high-frequency cleaning and low-frequency cleaning, wherein the flushing pressure of the low-frequency cleaning is 200PSI and 800 PSI.
Also as a further improvement of the cleaning method, a step of heating the cleaning liquid to 60 ℃ or higher is included.
The invention also aims to provide an application of the cleaning device in the removal-free cleaning of a middle roller bearing seat of a cold rolling single machine frame.
The disassembly-free cleaning device, the cleaning method and the application of the cold rolling unit bearing seat adopting the technical scheme have the following positive effects:
(1) and the bearing seat is used as a cleaning container of super-magic waves, so that manual disassembly and assembly are avoided.
(2) The combination of measures such as high-speed pulse injection, high-frequency vibration, rotary cleaning, centrifugal pollution discharge and the like improves the decontamination efficiency, the decontamination is more thorough, and the cleaning time in the bearing seat is greatly reduced.
(3) And because a physical decontamination mode and an environment-friendly cleaning solution are adopted as cleaning media, the content of chemical components in the cleaning solution can be greatly reduced, and the cleaning solution is more environment-friendly and safer.
(4) And simultaneously cleaning a lubricating system pipeline in the bearing seat and a bearing in the bearing seat.
Drawings
FIG. 1 is a schematic structural view of a disassembly-free cleaning device for a bearing seat of a cold rolling unit according to the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a side view of FIG. 1;
FIG. 4 is a schematic view of a partial structure of the cleaning apparatus of the present invention;
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
The invention provides a disassembly-free cleaning device for a bearing seat of a cold rolling unit, which is applied to an intermediate roll bearing seat and used for off-line cleaning of the intermediate roll bearing seat of a cold rolling twenty-high roll mill on the premise of non-disassembly, and aims to realize high-efficiency cleaning of impurities in the bearing seat, reduce bearing loss, improve cleaning efficiency and reduce cleaning time.
The dismounting-free cleaning device for the bearing seat can clean two sets of bearing seats of the middle roller at the same time. The environmental-friendly cleaning liquid is used as a cleaning medium to replace the original chemical cleaning agent.
As shown in the figure, the multistage high-speed centrifugal pump (i.e. the multistage centrifugal pump 2) injects environment-friendly cleaning liquid into the bearing seat 13 to be cleaned at a high speed from the cleaning liquid tank 1. The high-frequency pulse oscillation generator in the airtight flushing tank/the high-efficient flushing tank 6 of cladding bearing frame 13 produces the high-frequency oscillation wave, and under the effect of high-frequency pulse oscillation wave, a washing liquid becomes high-speed steam vortex and a large amount of high-speed miniature bubbles and carries out the blasting scouring to the dirt on the part in the bearing frame, then the part of bearing frame 13 inside and dirt produce vibrations and initiate resonance, further destroys the adsorption on dirt and part surface for the dirt layer is more abundant is peeled off. The peeled dirt and stain are thrown out of the bearing seat through an outlet 14 of the bearing seat lubricating system under the centrifugal action of the rotation of the bearing seat along with the cleaning liquid, and then flow back into the cleaning liquid box body 1. The dirty cleaning liquid is filtered by the three-stage filtering system in the box body to become clean cleaning liquid, and then the cleaning liquid is cleaned again for use, so that a cleaning cycle is completed.
In addition, all rotating equipment of this belt cleaning device all designs safety protection cover to guarantee operating personnel safety.
The cleaning apparatus and the cleaning method in the present application will be described in detail below with reference to the main components of the apparatus:
1. cleaning solution box
The total capacity of the cleaning solution tank body 1 is 1m3And carrying out impurity filtration and precipitation in three stages. For maintenance, be furnished with blind plate and draining hole, upper portion is whole steel sheet, and the design has the hoist and mount ring, thereby makes things convenient for the upper portion steel sheet to wholly lift by crane and cleans in the washing liquid box. A visual liquid level meter is arranged near the oil filling hole.
The material of the box body and the internal clapboard of the cleaning fluid box is 304 stainless steel, the material of the filter screen is primarily determined as chemical fiber, and the mesh number of the filter screen is determined according to the requirement.
Description of the function: the cleaning medium is used for containing a cleaning medium for cleaning the middle roller bearing seat; the heating system can heat the cleaning liquid to 60 ℃ and keep the optimal cleaning state; and recovering and filtering the cleaning liquid of the cleaned bearing seat, and recycling the cleaning liquid.
2. Multi-stage centrifugal pump
The cleaning device carries a multistage high-speed frequency conversion centrifugal pump.
Description of the function: and cleaning liquid is extracted from the cleaning liquid tank body 1 and is injected into the bearing seat 3 at a high speed.
3. Linear guide rail pair
Considering the error of hoisting a middle roller, in order to facilitate the operation, the U-shaped clamping groove 5, the wedge lifting mechanism 4 and the high-efficiency flushing groove 6 are all arranged on the high-precision linear guide rail pair 3, the two sides of the guide rail sliding block are provided with manual locking mechanisms, and the sliding block can be locked at any time after being in place.
Description of the function: for axial displacement and positioning of the coupling mechanism with the bearing block to be cleaned.
4. Inclined wedge lifting mechanism
The initial diameter change range of an intermediate roller is phi 130 mm-phi 140mm, and in order to ensure that the cleaning equipment is aligned with the roller center, a height adjusting mechanism, namely a wedge lifting mechanism 4 is designed, and the mechanism is provided with a hand wheel to facilitate operation.
Description of the function: the height of the cleaning device and the connecting equipment of the bearing seat to be cleaned is adjusted to adapt to the height of an intermediate roller with different diameters, so that the perfect connection of the cleaning equipment and the bearing seat of the intermediate roller is ensured.
5. Pulse cleaning device (cleaning bearing seat lubricating system)
The simple ultrasonic cleaning and chemical agent cleaning are not ideal for cleaning the pipeline of the internal lubrication system, and can not remove dirt remained in the pipeline, thereby finally causing the blockage of the lubrication system. Therefore, the invention designs a pulse cleaning device to solve the difficulty.
The working principle of pulse cleaning adopts the power of a high-pressure pump, phase rotation pulses are output by combining two paths, and a power system drives small-amplitude oscillation and high rotation to advance, so that the blockage of a bearing seat is changed into powder and flows out along with water. Effectively solves the problem that unnecessary production loss is caused by blockage of liquid in the bearing seat due to unsmooth inner wall-hanging scale. The cleaning device is mainly used for cleaning pipelines inside a bearing seat, an arterial cleaning machine converts internal vortex power into kinetic energy by using a gas, water and electromagnetic pulse combination, moves at a high speed in a micro-molecule mode, decomposes dirt in a pipe wall by using heat energy, kinetic energy and electromagnetic pulse in the operation process, and flushes out of the pipe along with water molecules so as to clean the inside of the bearing seat.
Connecting the pulse cleaning machine with the liquid inlet pipe of the bearing seat by using a pulse output pipe; the interface end of the blow-off pipe is connected with the cleaning liquid box body, and the compressor is started to enable the compressor to work to reach working pressure.
Firstly, opening an air source and then opening a water source; the first cleaning pass is set to high frequency. Starting the cleaning machine to start cleaning for the first time, wherein the cleaning for the first time mainly comprises the steps of beating out the residual sewage in the inner pipe of the bearing seat and simultaneously detecting whether the pipeline is blocked. The first purge is performed by controlling the inlet air rate and observing the pressure in the buffer to prevent the buffer from overflowing. The second cleaning is set to be low frequency, and the cleaning lasts for more than 15 minutes, so that the dirt of the pipeline in the bearing seat can be completely removed. Test researches show that the ideal flushing pressure is 50-800PSI, the pressure is controlled between 50-800PSI, the water yield is controlled at 12000-. The pulse pressure is divided into a low gear 50-100PSI, a middle gear 100-200PSI and a high gear 200-800PSI, and if the high gear cannot flush dirt out of a bearing seat pipeline, the high gear is manually removed and cleaned. Avoiding serious blockage inside.
Description of the function: the principle of the pulse cleaning machine for the pipeline inside the bearing seat is that water and gas are injected into the pipeline inside the bearing seat in sections, under the action of high-pressure gas, medium cleaning liquid generates an air explosion effect to scour sludge and scale in the pipeline violently so as to achieve the purpose of dredging and expanding the diameter, thereby recovering the original diameter of the pipeline inside the bearing seat and ensuring the flow and flow speed during working.
6. Ultrasonic cleaning device (cleaning bearing seat inner bearing)
The bearing seat is disassembled for static cleaning in the common ultrasonic cleaning, and the bearing seat 13 is innovatively used as an ultrasonic cleaning container to avoid manual disassembly and assembly.
The ultrasonic wave generator 15 directly contacts with a bearing seat shell, the interior of the bearing seat is filled with cleaning liquid, the bearing seat at the moment becomes an ultrasonic cleaning pool, particles in an elastic medium oscillate when ultrasonic waves are transmitted, energy is transmitted through the medium according to the transmission direction of the ultrasonic waves, dozens of kilohertz of ultrasonic waves emitted by the ultrasonic generator 15 can generate great acting force, and when strong ultrasonic waves are transmitted in liquid, acoustic cavitation can be generated due to nonlinear action. The shock wave generated when the cavitation bubbles are suddenly closed can generate thousands of atmospheric pressures around the cavitation bubbles, and the direct and repeated impact on the dirt layer can destroy the adsorption of the dirt on the surface of the cleaning piece on one hand, and can also cause the damage of the dirt layer to separate from the surface of the cleaning piece and disperse the dirt layer into the cleaning liquid on the other hand. The vibration of the bubbles can also scrub the solid surface. The air bubbles can also 'drill' into the bearing gap to vibrate, so that the dirt falls off. In addition, the ultrasonic vibration causes large vibration speed and acceleration of particles in the cleaning liquid, and the dirt on the surface of the cleaning piece is frequently and violently impacted.
The ultrasonic cleaning effect is not necessarily proportional to (power × cleaning time), and sometimes it takes a long time to remove the dirt with a small power. And if the power reaches a certain value, the dirt is sometimes removed soon. If the selected power is too large, the cavitation intensity will be greatly increased, the cleaning effect is improved, but at the moment, a more precise bearing also generates an erosion point which is not compensated, so the ultrasonic power is selected according to the actual use condition.
We select between 28kHz and 120kHz, typically around 28-40kHz, by repeatedly testing the ultrasonic cleaning frequency. The cleaning agent has better effect on the bearing cleaning of small gaps and slits, and bearing corrosion points can not appear.
Description of the function: for grease dirt in the bearing seat, due to the ultrasonic cavitation effect, the two liquids are rapidly dispersed and emulsified at the interface, when solid particles are wrapped by oil dirt and adhered to the surface of a cleaning piece, the oil is emulsified, and the solid particles fall off. Cavitation bubbles cause a circulation of the liquid itself during vibration, so-called acoustic streaming. The ultrasonic cavitation cleaning agent can enable the surface of the vibration bubble to have high speed gradient and viscous stress, so that the dirt on the surface of a cleaning piece is damaged and falls off, the high-speed micro jet generated on the solid and liquid surfaces by ultrasonic cavitation can remove or weaken boundary dirt layers, corrode the surface of the solid, increase the stirring effect, accelerate the dissolution of soluble dirt and strengthen the cleaning effect of the chemical cleaning agent.
7. Roller support
And 2 groups of roller supports 7, wherein each group of supports is provided with 4 encapsulated carrier rollers and 1 compression roller. The 2 sets of roll supports 7 support and position an intermediate roll with chock for 2 to improve cleaning efficiency.
Description of the function: an intermediate roll of the belt bearing housing is supported and positioned.
8. Auxiliary device for rotary cleaning of roller
The cleaning device is provided with 1 motor reducer 8, and can provide rotary power for two middle rollers with bearing seats. When wasing, the bearing frame is the same with the state at during operation, the emulsion that is used for lubricating during the rolling is replaced by the washing liquid of cleaning machine, rotatory abluent effect is that every ball of letting the bearing can operate the washing and help it with filth discharge bearing frame, avoid pressing the filth between ball and bearing inside because the bearing dead weight, 360 no dead angles wash it, because the surperficial filth can better be got rid of in the friction between low-speed operation shaft ball and the bearing, static ultrasonic cleaning is compared to the effect and is improved more than 70%.
Description of the function: the intermediate roller 16 and the bearing seat 13 to be cleaned are rotated, centrifugal force is formed in the bearing seat to be cleaned, and the friction between the low-speed operation shaft ball 17 and the bearing can better remove dirt on the surface, so that the cleaned and peeled dirt can be thrown out of the bearing seat along with the cleaning liquid through the outlet 14 of the bearing seat lubricating system.
9. Clamping cylinder
The press rolls of each set of roll holders 7 are provided with a pressing cylinder 9 for providing pressing force to the press rolls.
Description of the function: the pressing roller is pressed against an intermediate roller 16 to prevent shaking and shaking during rotation, thereby ensuring the stability of the cleaning process.
10. Extreme position stop
In order to prevent the manual locking mechanism of the linear guide pair 3 from being out of work due to the fact that the axial movement of an intermediate roller 16 is too large, a mechanical limit position stop 10 is designed to ensure that an intermediate roller shaft can only move within a specified range.
Description of the function: and an intermediate roller is axially and mechanically positioned, so that abnormal axial movement is prevented when the intermediate roller rotates.
11. Pressure reducing valve
The outlet of the washing liquid centrifugal pump is provided with a pressure reducing valve 11 which can adjust the pressure of the output washing liquid.
Description of the function: the pressure of the cleaning liquid output by the cleaning liquid centrifugal pump can be adjusted in real time through the pressure reducing valve according to the actual requirements on site. Further connecting to the inlet 12 of the bearing housing lubrication system.
The key advantages of this solution are as follows:
(1) dismounting of the bearing seat during cleaning is avoided: and (4) performing circulating cleaning by using an inlet and outlet channel of a lubricating system of the bearing seat. The bearing seat component is prevented from being completely disassembled during cleaning at each time, the bearing seat does not need to be disassembled from the roller, and the production efficiency is greatly improved.
(2) And a high-speed pulse cleaning process: the environment-friendly cleaning liquid is injected into the bearing seat at a high speed through the centrifugal pump, after the high-speed cleaning liquid fluid enters the inside of the bearing seat, a high-speed water vapor vortex and a large number of high-speed micro bubbles are formed under the action of high-frequency pulse oscillation waves generated by the high-frequency pulse oscillation generator, the high-speed micro bubbles expand and burst after touching parts and dirt in the bearing, and the dirt is continuously stripped from the parts and falls off under the blasting action of the bubbles and the scouring action of the high-speed vortex.
(3) And high-frequency oscillation resonance separation: the high-frequency oscillation wave that the high-frequency pulse oscillation generator produced also treats when producing the vibration effect to high-speed washing liquid and wash bearing frame internals and dirt and produce vibrations and initiate resonance to destroy the dirt and treat the adsorption of cleaning part surface, more abundant acceleration dirt layer from the destruction on part surface and peel off.
(4) And dirt centrifugal discharge: in the cleaning process, a middle roller bearing seat generates centrifugal force through rotation, and dirt which are cleaned and peeled off are thrown out of the bearing seat along with cleaning liquid through an outlet of a bearing seat lubricating system.
The technical scheme can be applied to a middle roller of part of cold rolling single-stand units and can also be popularized to bearing seat equipment of most of cold rolling units so as to improve the production efficiency and the cleaning effect of cleaning bearing seats among cold rolling grinding rollers.
One specific example is as follows.
Examples
The twenty-roller single-stand reversible rolling mill for cold rolling has 4 middle rollers in the whole roller system, and plays a role in flattening the plate hemmed part 1/4 waves through the movement of one middle roller in the whole process of plate shape control of rolling. Each middle roller is provided with a bearing seat on one side, and the inner structure of the bearing seat mainly comprises a thrust bearing, a radial bearing, a clearance ring and the like.
The cleaning and maintenance contents of the existing intermediate roll bearing seat are as follows:
1. when the maintenance cycle of the bearing in the bearing seat reaches (on-line 150 hours), the bearing needs to be manually disassembled, cleaned and maintained;
2. for an intermediate bearing seat (such as steel pile, broken belt and bonded steel) of the machine under accident, manual disassembly, cleaning and maintenance are needed.
In the cleaning and maintenance process of a middle roller bearing seat, the phenomenon that the surface of a spacer ring of a thrust bearing is indented and pitted and even the bearing is scrapped due to the fact that sludge inside the bearing seat is accumulated (the sludge is derived from iron powder sludge in emulsion of a rolling mill) and the sludge is extruded and rubbed with parts inside the bearing is often found. Because the spacer ring and the bearing are matched and integrally introduced and cannot be independently replaced, the whole bearing is scrapped due to the abnormal damage of the spacer ring. The consequence is that a large number of bearings of the intermediate roller are abnormally scrapped, the consumption of the bearings is high, and great pressure is brought to the production cost and the turnover of spare parts. For example, in a certain timing period, an intermediate roller bearing accumulates to damage 216 sets abnormally, and direct economic loss is 65 ten thousand yuan.
In addition, limited by factors such as low manual labor efficiency and poor manual cleaning effect, the problems of online damage, failure and blockage of a bearing caused by poor cleaning state inside a middle roller bearing often occur, so that the unit is stopped due to faults. In the timing period, the production line of the rolling mill is stopped for 8 times due to the jamming fault of a middle roller bearing seat, the stop accumulated time is 56 hours, and the direct economic loss is 230 yuan.
After the cleaning device provided by the technical scheme is adopted, the bearing seat of an intermediate roller and internal parts thereof can be free from being detached, the cleaning machine is directly used for cleaning after the intermediate roller is taken off every time, and the cleaning time is shortened to 5 minutes per unit from the original 60 minutes per unit; the original chemical cleaning agent is replaced by common environment-friendly cleaning solution; the amount of abnormal damage of an intermediate roller bearing was also reduced by 50%. And the fault shutdown accident caused by the jamming of a middle roller bearing does not occur any more.
Claims (10)
1. The utility model provides a cold rolling mill train bearing frame exempts from to demolish belt cleaning device, when wasing, the bearing frame is the same with the state at the during operation, its characterized in that, includes an ultrasonic generator and the airtight flushing tank of assorted with it, be equipped with high-frequency pulse oscillation generator in the airtight flushing tank, wait to wash the bearing frame lay in the airtight flushing tank, the inner chamber of waiting to wash the bearing frame forms an ultrasonic cleaning container, the lubricated liquid access way of waiting to wash bearing frame lubricating system forms the washing liquid inlet and the liquid outlet of this ultrasonic cleaning container respectively, washing liquid inlet connects washing liquid holding vessel through a multistage centrifugal pump, the washing liquid outlet is connected through washing liquid backward flow pipeline washing liquid holding vessel, the shaft body of waiting to wash the bearing frame connects a centrifugal drive pivot.
2. The disassembly-free cleaning device for the bearing seat of the cold-rolling unit according to claim 1, wherein the multistage centrifugal pump is a multistage high-speed variable-frequency centrifugal pump.
3. The non-dismantling cleaning device for the bearing seat of the cold-rolling mill train as claimed in claim 1, further comprising a lifting mechanism for adjusting the mounting height of the bearing seat to be cleaned and a clamping and positioning mechanism for positioning the mounted bearing seat to be cleaned.
4. The non-dismantling cleaning device for the bearing seat of the cold-rolling mill train as set forth in claim 3, wherein said clamping and positioning mechanism includes at least one extreme position stopper member for preventing the bearing seat to be cleaned from excessive axial movement.
5. The disassembly-free cleaning device for the bearing seat of the cold-rolling unit as claimed in claim 1, wherein a pressure reducing valve is arranged on a connecting pipeline between the multistage centrifugal pump and the cleaning liquid inlet.
6. The non-dismantling cleaning device for the bearing block of the cold-rolling mill train as set forth in claim 1, further comprising a heating device for heating the cleaning liquid stored in the cleaning liquid storage container.
7. A method for cleaning a bearing seat of a cold-rolling mill train by using the cleaning device according to any one of claims 1 to 6, wherein the frequency of ultrasonic cleaning is 28kHz to 40 kHz.
8. The cleaning method according to claim 7, further comprising a step of pre-cleaning the inside of the bearing seat before the ultrasonic cleaning, wherein the step comprises a high frequency cleaning and a low frequency cleaning, and the flushing pressure of the low frequency cleaning is 200 and 800 PSI.
9. The cleaning method according to claim 7, comprising the step of heating the cleaning liquid to 60 ℃ or higher.
10. Use of a cleaning device according to any of claims 1-6 for the non-dismantling cleaning of a middle roll chock of a single cold-rolling stand.
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| CN201910229174.8A CN111729895B (en) | 2019-03-25 | 2019-03-25 | Disassembly-free cleaning device and cleaning method for bearing seat of cold rolling unit and application |
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| CN201910229174.8A CN111729895B (en) | 2019-03-25 | 2019-03-25 | Disassembly-free cleaning device and cleaning method for bearing seat of cold rolling unit and application |
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| CN114367540B (en) * | 2022-01-06 | 2023-12-29 | 高诺(衡阳)新材料有限责任公司 | Rolling mill oil lubrication system |
| CN115163576A (en) * | 2022-08-29 | 2022-10-11 | 贵州开阳化工有限公司 | Online cleaning device and method for bearing bush of centrifugal compressor |
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| CN103867582A (en) * | 2014-04-12 | 2014-06-18 | 方义飞 | Mineral engineering machinery, disassembly-free oil cavity cleanable bearing block and cleaning method |
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| CN2463261Y (en) * | 2001-01-09 | 2001-12-05 | 兰州先灵检测设备有限责任公司 | Full-automatic ultrasonic wave cleaner for bearing and fittings specially adapted for railway |
| CN1827243A (en) * | 2005-03-04 | 2006-09-06 | 周建茗 | Intelligent metallurgical rolling mill bearing and bearing box cleaning machine |
| JP2007130559A (en) * | 2005-11-09 | 2007-05-31 | Tokyo Sangyo Co Ltd | Rotary ultrasonic cleaning apparatus for roll |
| CN203803832U (en) * | 2014-02-20 | 2014-09-03 | 新疆八一钢铁股份有限公司 | Rolling mill bearing cleaning device |
| CN104138865B (en) * | 2014-08-15 | 2016-06-15 | 重庆钢铁(集团)有限责任公司 | The washing unit of short stress bar rolling mill bearing and method |
| CN204620560U (en) * | 2015-02-04 | 2015-09-09 | 新昌万顺机械有限公司 | A kind of bearing cleaning equipment |
| CN207025977U (en) * | 2017-07-31 | 2018-02-23 | 成都航空职业技术学院 | A kind of bearing cleaning machine |
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| CN103867582A (en) * | 2014-04-12 | 2014-06-18 | 方义飞 | Mineral engineering machinery, disassembly-free oil cavity cleanable bearing block and cleaning method |
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