CN109357019A - A kind of vacuum equipment with live-roller and magnetic fluid seal driving device - Google Patents
A kind of vacuum equipment with live-roller and magnetic fluid seal driving device Download PDFInfo
- Publication number
- CN109357019A CN109357019A CN201811348731.XA CN201811348731A CN109357019A CN 109357019 A CN109357019 A CN 109357019A CN 201811348731 A CN201811348731 A CN 201811348731A CN 109357019 A CN109357019 A CN 109357019A
- Authority
- CN
- China
- Prior art keywords
- magnetic fluid
- fluid seal
- driving device
- vacuum
- seal driving
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
- F16J15/43—Sealings between relatively-moving surfaces by means of fluid kept in sealing position by magnetic force
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/06—Combinations of two or more pumps
Abstract
The invention discloses a kind of vacuum equipment with live-roller and magnetic fluid seal driving device, comprising: box main body, the inside setting working chamber and drive cavity of box main body；One group or more of driven roll assembly, driven roll assembly include sequentially connected driven voller, the first magnetic fluid seal driving device, slave drive part；The power device being set to outside the cavity, the second magnetic fluid seal driving device；Vacuum evacuation device, the vacuum evacuation device is for vacuumizing working chamber and drive cavity.Therefore, when extraneous air is wanted to enter in working chamber, it must be the first magnetic fluid seal driving device and the second magnetic fluid seal driving device while damage, this probability is well below the probability that one of magnetic fluid seal driving device damages, to greatly increase the sealing performance of vacuum equipment of the invention when using live-roller.
Description
Technical field
The present invention relates to technical field of vacuum equipment, in particular to a kind of to use live-roller and magnetic fluid seal driving device
Vacuum equipment.
Background technique
It is well known that vacuum equipment is widely used in modernization industry production, using vacuum cavity, live-roller and magnetic current
Body sealed gearing device is common structure type.Wherein, the working principle of magnetic fluid seal driving device is magnetic fluid injection
Gapped magnetic field forms " O-ring seal of liquid ", and function is that the rotary motion in atmosphere is transmitted in vacuum environment.Actually answer
In, since many reasons will cause " O-ring seal of liquid " seal failure of magnetic fluid formation, vacuum leak, shadow
Ring product quality, arrestment of even having to terminates production.
Summary of the invention
To solve the above-mentioned problems, the purpose of the present invention is to provide a kind of structure is simple, can either use live-roller and
Magnetic fluid seal driving device, while the vacuum equipment of good seal performance.
The present invention be solve its technical problem and the technical solution adopted is that:
A kind of vacuum equipment with live-roller and magnetic fluid seal driving device, comprising:
Box main body, the box main body are internally provided with a cavity, one are provided in the cavity and is separated into the cavity
The partition of mutually independent working chamber and drive cavity, while offering on the opposite two sidewalls of the working chamber should for workpiece disengaging
The manhole appendix of working chamber；
Driven roller mechanism, the driven roller mechanism include one group or more of driven roll assembly, and the driven roll assembly includes
Sequentially connected driven voller, the first magnetic fluid seal driving device, slave drive part, the driven voller are set to the working chamber
In, the first magnetic fluid seal driving device is set on the partition, and the slave drive part is set to the drive cavity
In；
Power mechanism, the power mechanism include the power device being set to outside the cavity, the power device
Output end is connected with rotational installation in the second magnetic fluid seal driving device on the side wall of the drive cavity, second magnetic current
The output end of body sealed gearing device is connected with the active driving member in the drive cavity, is arranged on the active driving member
There is the transmission mechanism for being connected with the slave drive part；
Vacuum evacuation device, the vacuum evacuation device is for vacuumizing working chamber and drive cavity.
As an improvement of the above technical solution, the power mechanism further includes the active being movably installed in the working chamber
Roller, one end of the drive roll is connected with a third magnetic fluid seal driving device being movably installed on the partition, described
One end of third magnetic fluid seal driving device is connected with the active driving member.
As a further improvement of the above technical scheme, lead between the drive roll and third magnetic fluid seal driving device
A shaft coupling is crossed to be connected.
In the present invention, the active driving member is a shaft coupling.
Preferably, it is connected between the driven voller and the first magnetic fluid seal driving device by a shaft coupling.
Further, the slave drive part is that the first magnetic fluid seal driving device extends into the connection in the drive cavity
End；The transmission mechanism includes the synchronizing wheel being respectively arranged on the connection end and active driving member, two synchronizing wheels
Between be arranged with synchronous belt.
Further, the driven roller mechanism includes the driven roll assembly of multiple groups, is provided between adjacent driven roll assembly
Transmission device for transmission.
In the present invention, the vacuum evacuation device includes vacuum pump for vacuumizing, the vacuum being connected with vacuum pump
Main pipeline, the vacuum main pipeline are connected with the vacuum manifold road being connected respectively with the working chamber and drive cavity.
A preferred embodiment of the present invention, the vacuum evacuation device include two vacuum pumps, and each vacuum pump is separately connected
There is a vacuum pipe, wherein a vacuum pipe is connected with working chamber, another vacuum pipe is connected with the drive cavity
It is logical.
It further, further include air charging system, the air charging system includes filling with what the working chamber and drive cavity were connected
Feed channel, the gas ducting are connected with gas source.
The beneficial effects of the present invention are: due to the present invention by using partition by the cavity of box main body be separated into working chamber and
The driven voller for being used to be driven is set in working chamber by drive cavity, and the driven voller is connected with the be set on the partition
One magnetic fluid seal driving device, the first magnetic fluid seal driving device be connected be set to it is driven in the drive cavity
Driving member, and the power device for providing power is then set to the outside of the cavity of box main body, the output end of the power device
Rotational installation is connected in the second magnetic fluid seal driving device on the side wall of the drive cavity, second magnet fluid sealing
The output end of transmission device is connected with the active driving member in the drive cavity, is provided with and is used on the active driving member
The transmission mechanism being connected with the slave drive part.By using above-mentioned structure, so that the biography of vacuum equipment of the invention
Dynamic roller is sealed by the first magnetic fluid seal driving device and the second magnetic fluid seal driving device, therefore, extraneous sky
When gas is wanted to enter in working chamber, it is necessary to be the first magnetic fluid seal driving device and the second magnetic fluid seal driving device simultaneously
Damage, this probability is well below the probability that one of magnetic fluid seal driving device damages, to greatly increase this hair
Sealing performance of bright vacuum equipment when using live-roller.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the surface structure schematic diagram of the first preferred embodiment of the present invention；
Fig. 2 is the bottom surface structure schematic diagram of the first preferred embodiment of the present invention；
Fig. 3 is the partial structurtes decomposition diagram of the first preferred embodiment of the present invention；
Fig. 4 is the assembling structure schematic diagram of driven roller mechanism and power mechanism in the first preferred embodiment of the present invention；
Fig. 5 is the bottom surface structure schematic diagram of the second preferred embodiment of the present invention.
Specific embodiment
Referring to figs. 1 to Fig. 4, the first preferred embodiment of vacuum equipment of the invention, one kind having live-roller and magnetic fluid
The vacuum equipment of sealed gearing device, including box main body 10, driven roller mechanism, power mechanism and vacuum evacuation device, the case master
Body 10 is internally provided with an open cavity, is provided with one in the cavity and the cavity is separated into mutually independent working chamber
11 and drive cavity 12 partition 13, while being offered on the opposite two sidewalls of the working chamber 11 and passing in and out the working chamber 11 for workpiece
Manhole appendix；The driven roller mechanism includes one group or more of driven roll assembly, and the driven roll assembly includes sequentially connected
Driven voller 21, the first magnetic fluid seal driving device 210, slave drive part 22, the driven voller 21 are set to the working chamber
In 11,210 activity of the first magnetic fluid seal driving device is installed on the partition 13, and the slave drive part 22 is set to
In the drive cavity 12；The power mechanism includes the power device 30 being set to outside the cavity, the power device 30
Output end be connected with rotational installation in the second magnetic fluid seal driving device 31 on the side wall of the drive cavity 12, described the
The output end of two magnetic fluid seal driving devices 31 is connected with the active driving member 32 in the drive cavity 12, the active
The transmission mechanism for being connected with the slave drive part 22 is provided on driving member 32；The vacuum evacuation device is used for work
Make chamber 11 and drive cavity 12 vacuumizes.
Since the cavity of box main body 10 is separated into working chamber 11 and drive cavity 12 by using partition 13 by the present invention, will use
It is set in working chamber 11 in the driven voller 21 of transmission, the driven voller 21 is connected with the first magnetic being set on the partition 13
Fluid-tight transmission 210, the first magnetic fluid seal driving device 210, which is connected with, to be set in the drive cavity 12
Slave drive part 22, and the power device 30 for providing power is then set to the outside of the cavity of box main body 10, the power dress
The output end for setting 30 is connected with rotational installation in the second magnetic fluid seal driving device 31 on the side wall of the drive cavity 12, institute
The output end for stating the second magnetic fluid seal driving device 31 is connected with the active driving member 32 in the drive cavity 12, described
The transmission mechanism for being connected with the slave drive part 22 is provided on active driving member 32.
By using above-mentioned structure, so that the live-roller of vacuum equipment of the invention passes through the first magnetic fluid seal driving
Device 210 and the second magnetic fluid seal driving device 31 are sealed, and therefore, extraneous air is wanted to enter in working chamber 11
When, it is necessary to it is the first magnetic fluid seal driving device 210 and the second magnetic fluid seal driving device 31 while damages, i.e. the second magnetic
After fluid-tight transmission 31 is damaged, extraneous air can just enter to the drive cavity 12, when the first magnet fluid sealing passes
When dynamic device 210 also damages, the air in the drive cavity 12 can just be entered in the working chamber 11, first magnetic
Fluid-tight transmission 210 and the probability of the second damage simultaneously of magnetic fluid seal driving device 31 are well below one of magnetic
The probability of fluid-tight transmission damage, so that it is close when using live-roller to greatly increase vacuum equipment of the invention
Sealing property.
Wherein, herein, described as a preferred embodiment of the present invention in order to preferably drive workpiece mobile
Power mechanism further includes the drive roll 33 being movably installed in the working chamber 11, and it is living that one end of the drive roll 33 is connected with one
The dynamic third magnetic fluid seal driving device 34 being installed on the partition 13, the third magnetic fluid seal driving device 34
One end is connected with the active driving member 32.
Wherein, in order to enable drive roll 33 can preferably be connected with third magnetic fluid seal driving device 34, at this
In, it is preferable that it is connected between the drive roll 33 and third magnetic fluid seal driving device 34 by a shaft coupling 70.
Similarly, in order to enable the third magnetic fluid seal driving device 34 preferably with 32 phase of active driving member
Connection, herein, it is preferable that the active driving member 32 is a shaft coupling.Therefore, by the shaft coupling, can preferably by
Third magnetic fluid seal driving device 34 links together with the second magnetic fluid seal driving device 31, while can also be preferably
Transmit power.
Further, it is connected for the ease of driven voller 21 with the first magnetic fluid seal driving device 210, herein, as
A preferred embodiment of the present invention, also by a shaft coupling between the driven voller 21 and the first magnetic fluid seal driving device 210
Device 70 is connected.It therefore, can be preferably by driven voller 21 and the first magnetic fluid seal driving device by the shaft coupling 70
210 link together, while can also preferably transmit power.
Further, in order to simplify the structure of vacuum equipment of the invention, herein, it is preferable that the slave drive part
22 extend into the connection end in the drive cavity 12, i.e., the described slave drive part for the first magnetic fluid seal driving device 210
22 are an integral structure with the first magnetic fluid seal driving device 210；The transmission mechanism includes being respectively arranged at the connection
Synchronizing wheel 50 on end and active driving member 32 is arranged with synchronous belt 51 between two synchronizing wheels 50.
Certainly, the transmission mechanism can also use other structures, e.g., the transmission other than using above-mentioned structure
Mechanism includes the driving gear and driven gear of intermeshing transmission, and the driving gear is set to the active driving member 32
On, the driven gear is set on the slave drive part 22, also possible.
Referring to Fig. 4, in order to enable the driven roller mechanism can preferably transmit workpiece, herein, as of the invention
One preferred embodiment, the driven roller mechanism include the driven roll assembly of multiple groups, are provided with and are used between adjacent driven roll assembly
The transmission device of transmission.Herein, the transmission device also includes two synchronizing wheels 50, is arranged between two synchronizing wheels 50 same
Band 51 is walked, one of synchronizing wheel 50 is disposed therein on the slave drive part 22 of one group of driven roll assembly, another synchronizing wheel
50 are set on the slave drive part 22 of the driven roll assembly of another set.
Certainly, the transmission device can also be adopted other than the structure cooperated using two synchronizing wheels 50 and synchronous belt 51
With other structures, such as transmission device includes the driving gear and driven gear that can be intermeshed transmission, the driving tooth
Wheel is fixedly installed on the wherein slave drive part 22 of one group of driven roll assembly, and it is driven that the driven gear is set to another set
On the slave drive part 22 of roll assembly, it is intermeshed by driving gear and driven gear, it equally can be by power by wherein one
The driven roll assembly of group passes to another group of driven roll assembly, simple and convenient.
Similarly, it is connected with the second magnetic fluid seal driving device 31 transmission for the ease of power device 30, in this hair
It is bright, it is transmitted between the power device 30 and the second magnetic fluid seal driving device 31 also by one group of second transmission mechanism
Power, in the present invention, the power device 30 be preferably a motor, second transmission mechanism include a driving wheel and one from
Driving wheel, the driving wheel are fixedly installed at the output shaft of the motor, and the driven wheel and second magnet fluid sealing pass
Dynamic device 31 is connected, while being socketed with transmission belt on the driving wheel and driven wheel, by using above-mentioned structure, can incite somebody to action
The power of power device 30 passes to the second magnetic fluid seal driving device 31, simple and convenient.
Certainly, the power device 30 can also be capable of the device of output torque using other, such as other than using motor
Rotary cylinder etc., specifically can be determined according to actual needs.
Wherein, in order to can preferably be vacuumized to vacuum equipment of the invention, herein, it is preferable that the pumping
Vacuum plant include for vacuumizing vacuum pump (not being painted in figure), the vacuum main pipeline 40 that is connected with vacuum pump, it is described
Vacuum main pipeline 40 is connected with the vacuum manifold road 41 being connected respectively with the working chamber 11 and drive cavity 12.
When vacuum pump work is vacuumized, vacuum pump can be by vacuum manifold road 41 by working chamber 11 and drive cavity 12
Internal air extraction, so that vacuum state is formed inside working chamber 11 and drive cavity 12, it is simple and convenient.
Simultaneously as the volume of drive cavity 12 is less than the volume of working chamber 11, therefore, when vacuum pump vacuumizes, can incite somebody to action
Air in drive cavity 12 extracts more thorough, and in turn, the vacuum degree in the drive cavity 12 is higher, i.e. shape in drive cavity 12
The negative pressure of Cheng Geng great, therefore extraneous air enters in drive cavity 12 because the second magnetic fluid seal driving device 31 damages
When, air can promptly be evacuated device and take away, effectively prevent extraneous air to pass through the drive cavity 12 and enter to
In the working chamber 11, the sealing performance of vacuum equipment of the invention is greatly enhanced.
Further, individually working chamber 11 or drive cavity 12 are vacuumized in order to which vacuum pump may be implemented, in the present invention
In, it is preferable that a valve is provided on two vacuum manifold roads 41 being connected respectively with the working chamber 11 and drive cavity 12
Door, therefore, user can individually open or close the valve, so that control and the vacuum manifold road 41 of the working chamber 11 connect
On-off is opened, or the vacuum manifold road 41 that control is connected with drive cavity 12 is switched on or switched off, to realize that vacuum pump is individually right
Working chamber 11 or drive cavity 12 are vacuumized, simple and convenient.
In addition, can inflate into working chamber 11 and drive cavity 12 to realize, vacuum equipment of the invention further includes filling
Device of air, the air charging system include the gas ducting 60 being connected with the working chamber 11 and drive cavity 12, the gas tube
Road 60 is connected with gas source (not being painted in figure).Herein, above-mentioned gas source can be the air accumulator for being mounted with compressed air, or
Above-mentioned gas source is an air blower, specifically can unrestricted choice according to actual needs.Through air charging system into gas ducting 60
Gas is conveyed, gas passes through the gas ducting 60 again and inflates into working chamber 11 and drive cavity 12, meets the demand of user.
It can individually be inflated into working chamber 11 or drive cavity 12 to realize, herein, the gas ducting 60 connects
Have and inflates branch pipe with the first inflation branch pipe 61 for being connected with working chamber 11 and second for being connected with drive cavity 12
62, it is described first inflation branch pipe 61 and second inflation branch pipe 62 on be respectively arranged with valve 63, by individually controlling the first inflation
Valve 63 on branch pipe 61 or the second inflation branch pipe 62 can open or close the first inflation branch pipe 61 or the second inflation branch pipe
62, it individually inflates, meets the needs of users into working chamber 11 or drive cavity 12 to realize.
Certainly, it individually inflates into working chamber 11 or drive cavity 12 to realize, other than using above-mentioned structure, may be used also
To use other structures, two gas sources are such as used, one of gas source is connected by a pipeline with the working chamber 11, another
A style is connected by a channel with the drive cavity 12.It is inflated, be can be realized individually past by wherein some gas source at this time
It is inflated in working chamber 11 or drive cavity 12, it is simple and convenient, meet the different demands of user.
Referring to Fig. 5, the second preferred embodiment of the present invention, with first preferred embodiment the difference is that: take out true
The specific structure of empty device is different.In the present embodiment, the vacuum evacuation device includes two vacuum pumps (not being painted in figure), often
A vacuum pump is connected separately with a vacuum pipe 80, wherein a vacuum pipe 80 is connected with working chamber 11, another true
Vacant duct 80 is connected with the drive cavity 12.Therefore, intensity is vacuumized by control vacuum pump, drive cavity 12 can be made
In air pressure it is lower, if there is extraneous air to enter in drive cavity 12, can quickly be taken away by vacuum pump, it is effectively anti-
Only air enters in working chamber 11, greatly increases the sealing performance of vacuum equipment of the invention.
The above description is only a preferred embodiment of the present invention, as long as realizing the object of the invention technology with essentially identical means
Scheme belongs within protection scope of the present invention.
Claims (10)
1. a kind of vacuum equipment with live-roller and magnetic fluid seal driving device characterized by comprising
Box main body (10), the box main body (10) are internally provided with a cavity, and one is provided in the cavity by the cavity point
It is divided into the partition (13) of mutually independent working chamber (11) and drive cavity (12), while the two sidewalls that the working chamber (11) is opposite
On offer the manhole appendix that the working chamber (11) is passed in and out for workpiece；
Driven roller mechanism, the driven roller mechanism include one group or more of driven roll assembly, and the driven roll assembly includes successively
The driven voller (21) of connection, the first magnetic fluid seal driving device (210), slave drive part (22), the driven voller (21) set
It is placed in the working chamber (11), the first magnetic fluid seal driving device (210) is set on the partition (13), described
Slave drive part (22) is set in the drive cavity (12)；
Power mechanism, the power mechanism include the power device (30) being set to outside the cavity, the power device
(30) output end is connected with rotational installation in the second magnetic fluid seal driving device on the side wall of the drive cavity (12)
(31), the output end of the second magnetic fluid seal driving device (31) is connected with the biography of the active in the drive cavity (12)
Moving part (32) is provided with the transmission mechanism for being connected with the slave drive part (22) on the active driving member (32)；
Vacuum evacuation device, the vacuum evacuation device is for vacuumizing working chamber (11) and drive cavity (12).
2. a kind of vacuum equipment with live-roller and magnetic fluid seal driving device according to claim 1, feature
It is:
The power mechanism further includes the drive roll (33) being movably installed in the working chamber (11), the drive roll (33)
One end is connected with a third magnetic fluid seal driving device (34) being movably installed on the partition (13), the third magnetic current
One end of body sealed gearing device (34) is connected with the active driving member (32).
3. a kind of vacuum equipment with live-roller and magnetic fluid seal driving device according to claim 2, feature
It is:
It is connected between the drive roll (33) and third magnetic fluid seal driving device (34) by a shaft coupling.
4. a kind of vacuum equipment with live-roller and magnetic fluid seal driving device according to claim 1 or 2 or 3,
It is characterized by:
The active driving member (32) is a shaft coupling.
5. a kind of vacuum equipment with live-roller and magnetic fluid seal driving device according to claim 1, feature
It is:
It is connected between the driven voller (21) and the first magnetic fluid seal driving device (210) by a shaft coupling.
6. a kind of vacuum equipment with live-roller and magnetic fluid seal driving device according to claim 1 or 5, special
Sign is:
The slave drive part (22) is that the first magnetic fluid seal driving device (210) extends into the company in the drive cavity (12)
Connect end；
The transmission mechanism includes being respectively arranged at the synchronizing wheel (50) connected on end and active driving member (32), and two
Synchronous belt (51) are arranged between synchronizing wheel (50).
7. a kind of vacuum equipment with live-roller and magnetic fluid seal driving device according to claim 6, feature
It is:
The driven roller mechanism includes the driven roll assembly of multiple groups, and the transmission for transmission is provided between adjacent driven roll assembly
Device.
8. a kind of vacuum equipment with live-roller and magnetic fluid seal driving device according to claim 1, feature
It is:
The vacuum evacuation device includes vacuum pump for vacuumizing, the vacuum main pipeline (40) being connected with vacuum pump, described
Vacuum main pipeline (40) is connected with the vacuum manifold road (41) being connected respectively with the working chamber (11) and drive cavity (12).
9. a kind of vacuum equipment with live-roller and magnetic fluid seal driving device according to claim 1, feature
It is:
The vacuum evacuation device includes two vacuum pumps, and each vacuum pump is connected separately with a vacuum pipe, wherein one true
Vacant duct is connected with working chamber (11), and another vacuum pipe is connected with the drive cavity (12).
10. a kind of vacuum equipment with live-roller and magnetic fluid seal driving device according to claim 1, feature
It is:
It further include air charging system, the air charging system includes the gas tube being connected with the working chamber (11) and drive cavity (12)
Road (60), the gas ducting (60) are connected with gas source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811348731.XA CN109357019B (en) | 2018-11-13 | 2018-11-13 | Vacuum equipment with driving roller and magnetic fluid sealing driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811348731.XA CN109357019B (en) | 2018-11-13 | 2018-11-13 | Vacuum equipment with driving roller and magnetic fluid sealing driving device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109357019A true CN109357019A (en) | 2019-02-19 |
| CN109357019B CN109357019B (en) | 2023-09-08 |
Family
ID=65345025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811348731.XA Active CN109357019B (en) | 2018-11-13 | 2018-11-13 | Vacuum equipment with driving roller and magnetic fluid sealing driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109357019B (en) |
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| CN104989830A (en) * | 2015-06-16 | 2015-10-21 | 北京交通大学 | Multistage magnetic liquid sealing device for sealing liquid |
| US20150316101A1 (en) * | 2011-11-08 | 2015-11-05 | Eagle Industry Co., Ltd. | Seal device employing magnetic fluid |
| CN106286240A (en) * | 2016-10-15 | 2017-01-04 | 中国铁道科学研究院铁道建筑研究所 | A kind of single-ended automatic vacuum of prestress pipe and mud jacking system and technique thereof |
| CN209430767U (en) * | 2018-11-13 | 2019-09-24 | 中山瑞科新能源有限公司 | A kind of vacuum equipment with live-roller and magnetic fluid seal driving device |
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2018
- 2018-11-13 CN CN201811348731.XA patent/CN109357019B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998053231A1 (en) * | 1997-05-16 | 1998-11-26 | Advanced Fluid Systems Limited | Sealed drive system |
| CN101004220A (en) * | 2007-01-22 | 2007-07-25 | 石家庄铁道学院 | Magnetic field method for sealing air gap |
| US20150316101A1 (en) * | 2011-11-08 | 2015-11-05 | Eagle Industry Co., Ltd. | Seal device employing magnetic fluid |
| CN102705206A (en) * | 2012-01-30 | 2012-10-03 | 新泰市风龙王设备有限公司 | Wind-power air compressor |
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| CN209430767U (en) * | 2018-11-13 | 2019-09-24 | 中山瑞科新能源有限公司 | A kind of vacuum equipment with live-roller and magnetic fluid seal driving device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109357019B (en) | 2023-09-08 |
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