CN203926794U - A kind of improved Split magnetic liquid sealing device - Google Patents
A kind of improved Split magnetic liquid sealing device Download PDFInfo
- Publication number
- CN203926794U CN203926794U CN201420371920.XU CN201420371920U CN203926794U CN 203926794 U CN203926794 U CN 203926794U CN 201420371920 U CN201420371920 U CN 201420371920U CN 203926794 U CN203926794 U CN 203926794U
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- end cap
- split
- rolling bearing
- shell
- pole shoe
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Abstract
An improved Split magnetic liquid sealing device, belongs to sealing field of mechanical engineering.Solved and sealed the axle head connection device complexity of place running shaft, installing and removing in inconvenient situation, the maintenance of magnetic fluid sealing, a maintenance difficult problem, have higher using value.The utility model is by formations such as rotating shaft (1), left split formula rolling bearing (3), right split formula rolling bearings (9), according to the most situations of the inefficacy of property hydraulic seal, are these situations that the damage by bearing causes, first proposed to use split rolling bearing at home and abroad in magnetic fluid seal device, and shell and end cap are made to split structure, after design has just guaranteed that magnetic fluid sealing lost efficacy like this, can be in the situation that not dismantling axle head part, realize the replacing of bearing, the M R of magnetic fluid sealing.
Description
Technical field
The invention belongs to mechanical engineering technical field of sealing technology, be specially adapted to the equipment that axle head connects and install and remove in inconvenient situation, the sealing of running shaft.
Background technique
Magnetic fluid sealing has the advantages such as zero leakage, long lifetime, high reliability, be applied widely in practice, but in the commercial Application especially application such as Aeronautics and Astronautics, military project, often run into the situation that axle head connection device is complicated, mounting or dismounting inconvenience does not even allow dismounting of sealing place running shaft, and traditional magnetic fluid seal device is overall structure, in the process of fitting tight device, need the first axle head at equipment to pack seal arrangement into, and then equipment axle head is connected with complicated equipment.Like this, whole assembly process can consume the plenty of time, have a strong impact on production process, especially when magnetic fluid sealing lost efficacy to need is changed, the axle head of equipment is good inconvenient or while not allowing dismounting with complicated equipment connection, brought inconvenience to the replacing of magnetic fluid seal device, even may not realize.And application number is 201110240451.9 patents of applying for " a kind of Split magnetic liquid sealing device " because utmost point facewidth degree on pole shoe is generally below 1mm, make between the end face of utmost point tooth of two lobe pole shoes sealing very difficult.In the extensive use of magnetic fluid sealing, find, the most situations of the inefficacy of magnetic fluid sealing are that the damage by bearing causes.And split rolling bearing is because its easy accessibility, friction torque be little etc., advantage has obtained more application at some special occasions.And the application of split bearing in magnetic fluid sealing in document, there is not yet relevant report at home and abroad, in industrial reality, do not obtain application yet.Its reason is simply using magnetic fluid sealing as split structure, have a utmost point increment face sealing difficult problem, and integrated type magnetic fluid sealing should not adopt split rolling bearing.The present invention has proposed shell to make splitted structure according to this difficult problem, and pole shoe and magnet are made overall structure, for holding flimsy bearing, adopts split rolling bearing technology, obtains in actual applications good effect, has higher using value.
Summary of the invention
The technical issues that need to address of the present invention are, the axle head connection device of sealing place running shaft is complicated, install and remove in inconvenient situation the maintenance of magnetic fluid sealing, a maintenance difficult problem.
The technical solution adopted for the present invention to solve the technical problems is:
An improved Split magnetic liquid sealing device, forms this device and comprises:
Rotating shaft, upper shell, left split formula rolling bearing, left magnetism resistent ring, left pole shoe, permanent magnet, right pole shoe, right magnetism resistent ring, right split formula rolling bearing, upper end cap, lower end cap, screw, jump ring, the second seal ring, the first seal ring, the first bolt, the second bolt, the first nut, the second nut.
Form the connection between the each several part of this device:
Described the first seal ring is arranged in the seal groove on left pole shoe cylindrical; Described the second seal ring is arranged in the seal groove on right pole shoe cylindrical; Described permanent magnet is arranged on the right side of left pole shoe; Described right pole shoe is arranged on the right side of permanent magnet; Magnetic liquid is injected on the inner cylindrical surface of described permanent magnet; Formation magnetic fluid sealing assembly after above-mentioned assembling completes.
Described left split formula rolling bearing is arranged on the place, right side of the shaft shoulder in rotating shaft; Described left magnetism resistent ring is arranged on the place, right side of left split formula rolling bearing; Described magnetic fluid sealing assembly is arranged on the place, right side of left magnetism resistent ring; Described right magnetism resistent ring is arranged on the place, right side of black box; Described right split formula rolling bearing is arranged on the place, right side of right magnetism resistent ring; Described jump ring is arranged in the jump-ring slot in rotating shaft; Formation Runner assembly after above-mentioned assembling completes.
Shell is made to split structure, be divided into shell and lower casing; End cap is also made to split structure and be divided into upper end cap and lower end cap.
Upper shell and lower casing are buckled on Runner assembly, bonding by sealer between upper shell and lower casing, the inner cylindrical surface laminating of the external cylindrical surface of described Runner assembly and upper shell, lower casing.With the first bolt, the first nut, the second bolt, the second nut, upper shell and lower casing are connected into shell; With screw, upper end cap and lower end cap are fixed on the right side of shell.
In described a kind of improved Split magnetic liquid sealing device, rolling bearing has adopted split rolling bearing technology,, left split formula rolling bearing and right split formula rolling bearing have been used, dismantled and assembled, described shell is comprised of upper shell and lower casing, dismantled and assembled, described end cap is comprised of upper end cap and lower end cap, dismantled and assembled.The most situations of the inefficacy of magnetic fluid sealing are that the damage by bearing causes, and design has just guaranteed, after magnetic fluid sealing inefficacy, can, in the situation that not dismantling axle head part, realize the replacing of bearing like this.
Described permanent magnet, left pole shoe and right pole shoe are integrated type, and design has just been avoided sealing a difficult problem between the end face of upper and lower two lobe pole shoes like this.
Upper shell, lower casing, upper end cap, lower end cap and guard ring are made by non-magnet material; as stainless steel; described left pole shoe, right pole shoe, rotating shaft are made by the material of magnetic conductivity; as 2Cr13; described permanent magnet is made by high performance permanent magnetic materials; as neodymium iron boron, described magnetic liquid can be selected fluorocarbons based magnetic liquid, ester group magnetic liquid etc. according to the difference of sealing medium and sealed environment.
The present invention compares had beneficial effect with prior art:
The present invention is these situations that the damage by bearing causes according to the most situations of the inefficacy of magnetic fluid sealing, shell is made to splitted structure, pole shoe and magnet are made overall structure, for holding flimsy bearing, adopt split rolling bearing technology, the axle head connection device that solved sealing place running shaft is complicated, install and remove in inconvenient situation the maintenance of magnetic fluid sealing, a maintenance difficult problem; Pole shoe is made to integrated type, and to have solved application number be the problems such as end face seal difficulty that 201110240451.9 patents of applying for " a kind of Split magnetic liquid sealing device " exist the utmost point tooth of upper and lower two lobe pole shoes, obtain in actual applications good effect, there is higher using value.
Accompanying drawing explanation
A kind of improved Split magnetic liquid sealing device structural drawing of Fig. 1.
A kind of improved Split magnetic liquid sealing device plan view of Fig. 2.
A kind of improved Split magnetic liquid sealing device rear view of Fig. 3.
Embodiment
The invention will be further described as embodiment to take accompanying drawing:
A kind of improved Split magnetic liquid sealing device, as Fig. 1, form this device and comprise: rotating shaft 1, upper shell 2-1, left split formula rolling bearing 3, left magnetism resistent ring 4, left pole shoe 5, permanent magnet 6, right pole shoe 7, right magnetism resistent ring 8, right split formula rolling bearing 9, upper end cap 10-1, lower end cap 10-2, screw 11, jump ring 12, the second seal ring 13, the first seal ring 14, the first bolt 15, the second bolt 16, the second nut 17, the first nut 18.
Form the connection between the each several part of this device:
Described the first seal ring 14 is arranged in the seal groove on left pole shoe 5 cylindricals; Described the second seal ring 13 is arranged in the seal groove on right pole shoe 7 cylindricals; Described permanent magnet 6 is arranged on the right side of left pole shoe 5; Described right pole shoe 7 is arranged on the right side of permanent magnet 6; Magnetic liquid is injected on the inner cylindrical surface of described permanent magnet 6; Formation magnetic fluid sealing assembly after above-mentioned assembling completes.
Described left split formula rolling bearing 3 is arranged on the place, right side of the shaft shoulder in rotating shaft 1; Described left magnetism resistent ring 4 is arranged on the place, right side of left split formula rolling bearing 3; Described magnetic fluid sealing assembly is arranged on the place, right side of left magnetism resistent ring 4; Described right magnetism resistent ring 8 is arranged on the place, right side of black box; Described right split formula rolling bearing 9 is arranged on the place, right side of right magnetism resistent ring 8; Described jump ring 12 is arranged in the jump-ring slot in rotating shaft 1; Formation Runner assembly after above-mentioned assembling completes.
Shell is made to split structure, be divided into shell 2-1 and lower casing 2-2; End cap is also made to split structure and be divided into upper end cap 10-1 and lower end cap 10-2.
Upper shell 2-1 and lower casing 2-2 are buckled on Runner assembly, bonding by sealer between upper shell 2-1 and lower casing 2-2, the inner cylindrical surface laminating of the external cylindrical surface of described Runner assembly and upper shell 2-1, lower casing 2-2.With the first bolt 15, the first nut 18, the second bolt 16, the second nut 17, upper shell 2-1 and lower casing 2-2 are connected into shell; With screw 11, upper end cap 10-1 and lower end cap 10-2 are fixed on the right side of shell.
In described a kind of improved Split magnetic liquid sealing device, rolling bearing has adopted split rolling bearing technology,, left split formula rolling bearing 3 and right split formula rolling bearing 9 have been used, dismantled and assembled, described shell is comprised of upper shell 2-1 and lower casing 2-2, dismantled and assembled, described end cap is comprised of upper end cap 10-1 and lower end cap 10-2, dismantled and assembled.The most situations of the inefficacy of magnetic fluid sealing are that the damage by bearing causes, and design has just guaranteed, after magnetic fluid sealing inefficacy, can, in the situation that not dismantling axle head part, realize the replacing of bearing like this.
Described permanent magnet 6, left pole shoe 5 and right pole shoe 7 are integrated type, and design has just been avoided sealing a difficult problem between the end face of upper and lower two lobe pole shoes like this.
Upper shell, lower casing, upper end cap, lower end cap and guard ring are made by non-magnet material; as stainless steel; described left pole shoe, right pole shoe, rotating shaft are made by the material of magnetic conductivity; as 2Cr13; described permanent magnet is made by high performance permanent magnetic materials; as neodymium iron boron, described magnetic liquid can be selected fluorocarbons based magnetic liquid, ester group magnetic liquid etc. according to the difference of sealing medium and sealed environment.
Claims (1)
1. an improved Split magnetic liquid sealing device, forms this device and comprises:
Rotating shaft (1), upper shell (2-1), left split formula rolling bearing (3), left magnetism resistent ring (4), left pole shoe (5), permanent magnet (6), right pole shoe (7), right magnetism resistent ring (8), right split formula rolling bearing (9), upper end cap (10-1), lower end cap (10-2), screw (11), jump ring (12), the second seal ring (13), the first seal ring (14), the first bolt (15), the second bolt (16), the second nut (17), the first nut (18);
Form the connection between the each several part of this device:
Described the first seal ring (14) is arranged in the seal groove on left pole shoe (5) cylindrical; Described the second seal ring (13) is arranged in the seal groove on right pole shoe (7) cylindrical; Described permanent magnet (6) is arranged on the right side of left pole shoe (5); Described right pole shoe (7) is arranged on the right side of permanent magnet (6); Magnetic liquid is injected on the inner cylindrical surface of described permanent magnet (6); Formation magnetic fluid sealing assembly after above-mentioned assembling completes;
Described left split formula rolling bearing (3) is arranged on the place, right side of the upper shaft shoulder of rotating shaft (1); Described left magnetism resistent ring (4) is arranged on the place, right side of left split formula rolling bearing (3); Described magnetic fluid sealing assembly is arranged on the place, right side of left magnetism resistent ring (4); Described right magnetism resistent ring (8) is arranged on the place, right side of black box; Described right split formula rolling bearing (9) is arranged on the place, right side of right magnetism resistent ring (8); Described jump ring (12) is arranged in the jump-ring slot in rotating shaft (1); Formation Runner assembly after above-mentioned assembling completes;
Shell is made to split structure, be divided into shell (2-1) and lower casing (2-2); End cap is also made to split structure and be divided into upper end cap (10-1) and lower end cap (10-2);
Upper shell (2-1) and lower casing (2-2) are buckled on Runner assembly, bonding by sealer between upper shell (2-1) and lower casing (2-2), the inner cylindrical surface laminating of the external cylindrical surface of described Runner assembly and upper shell (2-1), lower casing (2-2); With the first bolt (15), the first nut (18), the second bolt (16), the second nut (17), upper shell (2-1) and lower casing (2-2) are connected into shell; With screw (11), upper end cap (10-1) and lower end cap (10-2) are fixed on the right side of shell;
It is characterized in that:
In described a kind of improved Split magnetic liquid sealing device, rolling bearing has adopted split structure, has used left split formula rolling bearing (3) and right split formula rolling bearing (9), dismantled and assembled;
Described shell is comprised of upper shell (2-1) and lower casing (2-2), dismantled and assembled;
Described end cap is comprised of upper end cap (10-1) and lower end cap (10-2), dismantled and assembled;
Described permanent magnet (6), left pole shoe (5) and right pole shoe (7) are integrated type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420371920.XU CN203926794U (en) | 2014-07-04 | 2014-07-04 | A kind of improved Split magnetic liquid sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420371920.XU CN203926794U (en) | 2014-07-04 | 2014-07-04 | A kind of improved Split magnetic liquid sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203926794U true CN203926794U (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420371920.XU Expired - Fee Related CN203926794U (en) | 2014-07-04 | 2014-07-04 | A kind of improved Split magnetic liquid sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203926794U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104741611A (en) * | 2015-04-02 | 2015-07-01 | 共享装备有限公司 | Work box of 3D printing equipment |
| CN105042078A (en) * | 2015-07-28 | 2015-11-11 | 南通艾迈特机械有限公司 | High-temperature-resistant and high-pressure-resistant shaft sealing device |
| CN105546123A (en) * | 2016-03-07 | 2016-05-04 | 广西科技大学 | Device and method for reducing eccentricity of rotating shaft of large-gap magnetic fluid sealing system |
| CN107654657A (en) * | 2017-10-30 | 2018-02-02 | 广西科技大学 | A kind of combination tooth dissection type device for sealing magnetic fluid |
| CN107882999A (en) * | 2017-12-13 | 2018-04-06 | 广西科技大学 | A kind of embedded device for sealing magnetic fluid of magnetic source |
| CN108162135A (en) * | 2017-12-28 | 2018-06-15 | 宁波高新区方元三维科技有限公司 | One kind can carry high-precision equipment box |
| CN109780219A (en) * | 2019-03-08 | 2019-05-21 | 石家庄学院 | Split-type shell mechanism, magnetic fluid seal device and shell encapsulating method |
| CN110848394A (en) * | 2019-11-29 | 2020-02-28 | 北京交通大学 | Back impeller-magnetic liquid combined sealing device for sealing liquid medium |
| CN112112975A (en) * | 2020-10-30 | 2020-12-22 | 清华大学 | Magnetic liquid sealing device |
| CN112112971A (en) * | 2020-10-30 | 2020-12-22 | 清华大学 | Floating ring type magnetic liquid sealing device |
| CN112728102A (en) * | 2020-12-29 | 2021-04-30 | 清华大学 | Magnetic liquid sealing device |
-
2014
- 2014-07-04 CN CN201420371920.XU patent/CN203926794U/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104741611A (en) * | 2015-04-02 | 2015-07-01 | 共享装备有限公司 | Work box of 3D printing equipment |
| CN105042078A (en) * | 2015-07-28 | 2015-11-11 | 南通艾迈特机械有限公司 | High-temperature-resistant and high-pressure-resistant shaft sealing device |
| CN105546123A (en) * | 2016-03-07 | 2016-05-04 | 广西科技大学 | Device and method for reducing eccentricity of rotating shaft of large-gap magnetic fluid sealing system |
| CN107654657A (en) * | 2017-10-30 | 2018-02-02 | 广西科技大学 | A kind of combination tooth dissection type device for sealing magnetic fluid |
| CN107654657B (en) * | 2017-10-30 | 2023-06-02 | 广西科技大学 | Mixed tooth split type magnetic fluid sealing device |
| CN107882999A (en) * | 2017-12-13 | 2018-04-06 | 广西科技大学 | A kind of embedded device for sealing magnetic fluid of magnetic source |
| CN107882999B (en) * | 2017-12-13 | 2023-05-02 | 广西科技大学 | Magnetic source embedded magnetic fluid sealing device |
| CN108162135A (en) * | 2017-12-28 | 2018-06-15 | 宁波高新区方元三维科技有限公司 | One kind can carry high-precision equipment box |
| CN109780219B (en) * | 2019-03-08 | 2020-09-29 | 石家庄学院 | Split type shell structure, magnetic liquid sealing device and shell sealing method |
| CN109780219A (en) * | 2019-03-08 | 2019-05-21 | 石家庄学院 | Split-type shell mechanism, magnetic fluid seal device and shell encapsulating method |
| CN110848394A (en) * | 2019-11-29 | 2020-02-28 | 北京交通大学 | Back impeller-magnetic liquid combined sealing device for sealing liquid medium |
| CN112112975A (en) * | 2020-10-30 | 2020-12-22 | 清华大学 | Magnetic liquid sealing device |
| CN112112971A (en) * | 2020-10-30 | 2020-12-22 | 清华大学 | Floating ring type magnetic liquid sealing device |
| CN112112971B (en) * | 2020-10-30 | 2022-02-11 | 清华大学 | Floating ring type magnetic liquid sealing device |
| CN112112975B (en) * | 2020-10-30 | 2022-06-14 | 清华大学 | Magnetic liquid sealing device |
| CN112728102A (en) * | 2020-12-29 | 2021-04-30 | 清华大学 | Magnetic liquid sealing device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20200704 |