CN209212636U - A kind of magnetic drive pump of idle running operation - Google Patents
A kind of magnetic drive pump of idle running operation Download PDFInfo
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- CN209212636U CN209212636U CN201821729573.8U CN201821729573U CN209212636U CN 209212636 U CN209212636 U CN 209212636U CN 201821729573 U CN201821729573 U CN 201821729573U CN 209212636 U CN209212636 U CN 209212636U
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- separation sleeve
- housing
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Abstract
The utility model provides a kind of magnetic drive pump of idle running operation, it includes pump shaft, axle sleeve is set on pump shaft, sliding bearing is set on axle sleeve, the first cavity is provided between axle sleeve and sliding bearing, bearing holder (housing, cover) is set on sliding bearing, the second cavity is provided between sliding bearing and bearing holder (housing, cover), pump cover is set on bearing holder (housing, cover), cover board is connected on pump cover, separation sleeve is cased with outside bearing holder (housing, cover), the bottom of separation sleeve is fixedly connected with pump cover, separation sleeve cavity is formed in separation sleeve, the return port for being passed through separation sleeve cavity is offered on bearing holder (housing, cover), impeller is set on the other end of pump shaft, the pump housing is set with outside impeller and separation sleeve, third cavity is provided between impeller and cover board, the 4th cavity is offered in pump cover, one end of 4th cavity is connected to third cavity, the opposite other end is connected to separation sleeve cavity.The utility model can efficiently solve the problem of previous magnetic drive pump cannot dally the short time in the case where entrance lacks liquid compared to the prior art.
Description
Technical field
The utility model relates to a kind of silicon carbide sliding bearing mechanisms, in particular to a kind of magnetic of idle running operation
Power pump.
Background technique
Metal magnetic pump is the No leakage chemical pump for conveying inflammable, explosive, toxic, harmful high-risk medium, usually
It is made of parts such as magnetic coupling, separation sleeve, silicon carbide axle sleeve, silicon carbide sliding bearing, pump shaft, the pump housing, impellers.
Magnetic drive pump needs medium itself to SiC bearing, magnetic coupling due to its distinctive structure in operation process
It is cooled down, so being not allow to dally, but often require in actual field use by entrance in use
Material polishing, that is to say, that can have of short duration idle running phenomenon.
Thus, it will lead to SiC bearing, magnetic coupling failure if traditional magnetic drive pump idle running.
Utility model content
In consideration of it, the utility model provides a kind of magnetic drive pump of idle running operation, it is intended to solve previous magnetic drive pump and enter
The problem of cannot dallying the short time in the case where the scarce liquid of mouth.
For this purpose, the utility model provides a kind of magnetic drive pump of idle running operation comprising pump shaft covers on one end of pump shaft
Equipped with interior magnet rotor, it is also set with axle sleeve on pump shaft, sliding bearing is set on axle sleeve, is provided between axle sleeve and sliding bearing
One cavity is set with bearing holder (housing, cover) on sliding bearing, the second cavity is provided between sliding bearing and bearing holder (housing, cover), is set on bearing holder (housing, cover)
There is pump cover, cover board is connected on pump cover, separation sleeve is cased with outside bearing holder (housing, cover) and interior magnet rotor, separation sleeve is that plastic barrier is covered or made pottery
Porcelain separation sleeve, the bottom of separation sleeve are fixedly connected with pump cover, and separation sleeve cavity is formed in separation sleeve, offered on bearing holder (housing, cover) be passed through every
From the return port for covering cavity, it is set with impeller on the other end of pump shaft, the pump housing, impeller and cover board are set with outside impeller and separation sleeve
Between be provided with third cavity, offer the 4th cavity in pump cover, it is one end connection third cavity of the 4th cavity, opposite another
End connection separation sleeve cavity.
Further, above-mentioned 4th cavity includes connected the first Cavity unit and the second Cavity unit.
Further, above-mentioned first Cavity unit and the second Cavity unit are all L shape cavity.
Further, gap of above-mentioned first cavity between axle sleeve and sliding bearing.
Further, above-mentioned second cavity includes the ring-shaped groove being opened on the surface of sliding bearing, and ring-shaped groove connects
Connect the gap between sliding bearing and bearing holder (housing, cover).
A kind of magnetic drive pump of idle running operation provided by the utility model, medium enter leaf by the chamber outside impeller
After wheel, pressurizes by impeller and enter third cavity, due to high-pressure medium in third cavity, so medium can pass through the 4th chamber
The return port of body enters separation sleeve cavity；Due to there is the presence of return port, medium can enter sliding axle by the return port
Hold position, and cooling sliding bearing, since throttling chamber a, b are there are gap, therefore medium can pass through the first cavity and the second cavity
It flow back into the 4th cavity；Meet the lasting cooling and lubrication of sliding bearing by this circulation route；
In addition, separation sleeve is using non-metallic material, therefore vortex heat will not be generated in pump operation process, be also just not required to
Medium is wanted to cool down magnetic coupling；
Return port contained by 4th cavity (only has at one) in circumferencial direction highest point, and exhaust function is played before pump starts
Can, and filled separation sleeve cavity liquid by this return port, the cavity of separation sleeve cavity is bigger, can store more Jie
Matter, since the medium of separation sleeve cavity can only be by clearance leakage at the first cavity and the second cavity two, at the second cavity
For the sliding bearing inner hole for not setting backflash, it is very small with the radial clearance of axle sleeve, can play throttling action；And the first chamber
Body is also throttling action, therefore circulating liquid, after throttling at the first cavity and the second cavity two, leakage rate is considerably less；
The medium of chamber and third cavity outside impeller tails off even without in the case where, due in separation sleeve cavity
Portion storage big quantity of fluid, also can constant position sliding bearing position cooling and lubrication；
It, can be to centre bit in third cavity when, there are when a small amount of particle, playing the role of particle in medium and receive centrifugal force
Flowing is set, since the 4th cavity is in impeller outer circle position, and between cover board and pump cover, solid particle is not easily accessed to
It (enters in the 4th cavity in four cavitys and needs to overcome certain centrifugal force), simultaneously because the small―gap suture of the 4th cavity can also be with
Prevent solid particle from entering in separation sleeve cavity.
Therefore, the utility model can efficiently solve previous magnetic drive pump in the case where entrance lacks liquid cannot the short time it is empty
The problem of turning, simultaneously because using nonmetal isolating sleeve material, overall efficiency, which has, significantly to be promoted, with pump with mechanical seal phase
It is close, and energy-saving effect is significant.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as practical to this
Novel limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is a kind of structural schematic diagram of the magnetic drive pump of idle running operation provided by the embodiment of the utility model.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
Referring to Fig. 1, a kind of magnetic drive pump of idle running operation provided by the embodiment of the utility model is shown in figure comprising
Pump shaft 1 is set with interior magnet rotor 11 on one end of pump shaft 1, axle sleeve 12 is also set on pump shaft 1, is set with sliding axle on axle sleeve 12
13 are held, the first cavity 121 is provided between axle sleeve 12 and sliding bearing 13, the first cavity 121 is axle sleeve 12 and sliding bearing 13
Between gap, be set with bearing holder (housing, cover) 131 on sliding bearing 13, the second chamber be provided between sliding bearing 13 and bearing holder (housing, cover) 131
Body 132, the second cavity 132 include the ring-shaped groove 133 being opened on the surface of sliding bearing 13, and the connection of ring-shaped groove 133 is slided
Gap between dynamic bearing 13 and bearing holder (housing, cover) 131 is set with pump cover 14 on bearing holder (housing, cover) 131, cover board 141 is connected on pump cover 14,
Separation sleeve 15 is cased with outside bearing holder (housing, cover) 131 and interior magnet rotor 11, separation sleeve 15 is plastic barrier set or ceramic separation sleeve, separation sleeve
15 bottom is fixedly connected with pump cover 14, forms separation sleeve cavity 151 in separation sleeve 15, offers on bearing holder (housing, cover) 131 and be passed through isolation
The return port 152 of cavity 151 is covered, impeller 16 is set on the other end of pump shaft 1, the pump housing is set with outside impeller 16 and separation sleeve 15
17, it is provided with third cavity 161 between impeller 16 and cover board 141, the 4th cavity 142, the 4th cavity 142 are offered in pump cover 14
One end connection third cavity 161, the opposite other end be connected to separation sleeve cavity 151, the 4th cavity 142 includes first to be connected
Cavity unit 143 and the second Cavity unit 144, the first Cavity unit 143 and the second Cavity unit 144 are all L shape cavity.
A kind of magnetic drive pump of idle running operation, medium provided by the present embodiment enter impeller by the chamber outside impeller
Afterwards, it pressurizes by impeller and enters third cavity, due to high-pressure medium in third cavity, so medium can pass through the 4th cavity
Return port enter separation sleeve cavity；Due to there is the presence of return port, medium can enter sliding bearing by the return port
Position, and cooling sliding bearing, since throttling chamber a, b are there are gap, therefore medium can pass through the first cavity and the second cavity stream
Return to third cavity；Meet the lasting cooling and lubrication of sliding bearing by this circulation route；
In addition, separation sleeve is using non-metallic material, therefore vortex heat will not be generated in pump operation process, be also just not required to
Medium is wanted to cool down magnetic coupling；
Return port contained by 4th cavity (only has at one) in circumferencial direction highest point, and exhaust function is played before pump starts
Can, and filled separation sleeve cavity liquid by this return port, the cavity of separation sleeve cavity is bigger, can store more Jie
Matter, since the medium of separation sleeve cavity can only be by clearance leakage at the first cavity and the second cavity two, at the second cavity
For the sliding bearing inner hole for not setting backflash, it is very small with the radial clearance of axle sleeve, can play throttling action；And the first chamber
Body is also throttling action, therefore circulating liquid, after throttling at the first cavity and the second cavity two, leakage rate is considerably less；
The medium of chamber and third cavity outside impeller tails off even without in the case where, due in separation sleeve cavity
Portion storage big quantity of fluid, also can constant position sliding bearing position cooling and lubrication；
It, can be to centre bit in third cavity when, there are when a small amount of particle, playing the role of particle in medium and receive centrifugal force
Flowing is set, since the 4th cavity is in impeller outer circle position, and between cover board and pump cover, solid particle is not easily accessed to
It (enters in the 4th cavity in four cavitys and needs to overcome certain centrifugal force), simultaneously because the small―gap suture of the 4th cavity can also be with
Prevent solid particle from entering in separation sleeve cavity.
Therefore, the present embodiment can efficiently solve previous magnetic drive pump and cannot dally the short time in the case where entrance lacks liquid
The problem of, simultaneously because using nonmetal isolating sleeve material, overall efficiency, which has, significantly to be promoted, and is connected with pump with mechanical seal
Closely, and energy-saving effect is significant.
Obviously, it is practical without departing from this can to carry out various modification and variations to the utility model by those skilled in the art
Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to include these modifications and variations.
Claims (5)
1. a kind of magnetic drive pump of idle running operation, which is characterized in that including pump shaft (1), be set on one end of the pump shaft (1)
Interior magnet rotor (11) is also set with axle sleeve (12) on the pump shaft (1), is set with sliding bearing (13), institute on the axle sleeve (12)
It states and is provided between axle sleeve (12) and the sliding bearing (13) the first cavity (121), is set on the sliding bearing (13)
Bearing holder (housing, cover) (131) is provided with the second cavity (132), the bearing between the sliding bearing (13) and the bearing holder (housing, cover) (131)
It is set with pump cover (14) on set (131), is connected with cover board (141) on the pump cover (14), the bearing holder (housing, cover) (131) and described interior
It is cased with separation sleeve (15) outside magnet rotor (11), the separation sleeve (15) is plastic barrier set or ceramic separation sleeve, the isolation
The bottom of set (15) is fixedly connected the pump cover (14), forms separation sleeve cavity (151) in the separation sleeve (15), the bearing
The return port (152) for being passed through the separation sleeve cavity (151) is offered on set (131), is set on the other end of the pump shaft (1)
Have impeller (16), is set with the pump housing (17) outside the impeller (16) and the separation sleeve (15), the impeller (16) and the lid
It is provided between plate (141) third cavity (161), offers the 4th cavity (142), the 4th cavity in the pump cover (14)
(142) one end is connected to the third cavity (161), the opposite other end is connected to the separation sleeve cavity (151).
2. a kind of magnetic drive pump of idle running operation according to claim 1, which is characterized in that the 4th cavity (142)
Including connected the first Cavity unit (143) and the second Cavity unit (144).
3. a kind of magnetic drive pump of idle running operation according to claim 2, which is characterized in that first Cavity unit
(143) and second Cavity unit (144) is all L shape cavity.
4. a kind of magnetic drive pump of idle running operation according to claim 1, which is characterized in that first cavity (121)
For the gap between the axle sleeve (12) and the sliding bearing (13).
5. a kind of magnetic drive pump of idle running operation according to claim 1, which is characterized in that second cavity (132)
Ring-shaped groove (133) on surface including being opened in the sliding bearing (13), the ring-shaped groove (133) connect the cunning
Gap between dynamic bearing (13) and the bearing holder (housing, cover) (131).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821729573.8U CN209212636U (en) | 2018-10-24 | 2018-10-24 | A kind of magnetic drive pump of idle running operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821729573.8U CN209212636U (en) | 2018-10-24 | 2018-10-24 | A kind of magnetic drive pump of idle running operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209212636U true CN209212636U (en) | 2019-08-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821729573.8U Active CN209212636U (en) | 2018-10-24 | 2018-10-24 | A kind of magnetic drive pump of idle running operation |
Country Status (1)
| Country | Link |
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| CN (1) | CN209212636U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253480A (en) * | 2020-10-20 | 2021-01-22 | 江苏旺源泵阀制造有限公司 | Rotating shaft connecting mechanism and magnetic pump |
-
2018
- 2018-10-24 CN CN201821729573.8U patent/CN209212636U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253480A (en) * | 2020-10-20 | 2021-01-22 | 江苏旺源泵阀制造有限公司 | Rotating shaft connecting mechanism and magnetic pump |
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