CN209406600U - The axle sealing structure of top suspension automatic centrifuge - Google Patents
The axle sealing structure of top suspension automatic centrifuge Download PDFInfo
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- CN209406600U CN209406600U CN201822118646.6U CN201822118646U CN209406600U CN 209406600 U CN209406600 U CN 209406600U CN 201822118646 U CN201822118646 U CN 201822118646U CN 209406600 U CN209406600 U CN 209406600U
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- main shaft
- extension
- blind hole
- rotary drum
- hole
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Abstract
The utility model relates to arrive the axle sealing structure of top suspension automatic centrifuge, including the axle bed being connected on centrifugation machine cap and the rotary drum pedestal for being connected to main shaft lower part, axle bed is connected with transparent cover on lower end surface, upper transparent cover is provided centrally with the first blind hole and first through hole, the first sealing ring is provided in first blind hole, the extension extended downwardly is also connected on the lower end surface of upper transparent cover, a pressure ring upwardly extended is fixedly connected on the upper surface of rotary drum pedestal, at least partly pressure ring and extension are coaxially nested and are provided with the second sealing ring between pressure ring and extension opposite face.By being fixedly connected with extension on upper transparent cover lower end surface, and pressure ring is fixedly connected on lower transparent cover upper surface, it is nested pressure ring and extension coaxially and the second sealing ring is set between pressure ring and extension opposite face, to which axle bed and rotary drum pedestal are tightly connected, main shaft is isolated with rotary drum internal working volume, effectively prevents the lubricating fluid contaminated material in axle bed.
Description
Technical field:
The utility model belongs to centrifuge technique field, and in particular to the axle sealing structure of top suspension automatic centrifuge.
Background technique:
The axle bed of top suspension automatic centrifuge is stationarily connected on the top cover of centrifuge, and main axis is connected to axle bed
Cylinder that is interior and being downwardly into centrifuge, rotary drum is then fixedly connected on main shaft lower part, due to needing to lubricate between main shaft and axle bed,
Therefore lubricating oil is had in axle bed, and after lubricating oil is attached on main shaft, it can trickle downwards along spindle outer wall, after outflow axle bed is outer
Main shaft can be thrown away and be mixed into material by centrifugal force, so that contaminated material, causes feed purity decline to even result in inventory disposal,
Therefore, the axle bed lower end of suspended centrifuge is required to setting axle sealing structure.
Traditional axle sealing structure is only to be tightly connected a transparent cover in axle bed lower end, and skeleton oil is arranged in transparent cover
Envelope seals main shaft and transparent cover using outside framework oil seal and is rotatablely connected, thus realize the sealed connection to axle bed and main shaft, but
It is found after a large amount of use, the sealing effect of this Hermetical connecting structure is unsatisfactory, since main shaft turns at a high speed for a long time
It is dynamic, lead to the hot fever of outside framework oil seal, accelerates outside framework oil seal aging, reduce the elasticity of outside framework oil seal, lead to main shaft radial-play
When and outside framework oil seal between generate gap, lead to oil leak, brought to user many worried and inconvenient.
Utility model content:
The technical problem to be solved by the utility model is to provide the axle sealing structure of top suspension automatic centrifuge, the knots
Structure can effectively avoid lubricant pollution material in suspended centrifuge axle bed.
In order to solve the above technical problems, the technical solution adopted in the utility model is: the axis of top suspension automatic centrifuge is close
Seal structure, including being connected on centrifugation machine cap for installing the axle bed of main shaft and being connected to the rotary drum pedestal of main shaft lower part, institute
The upper transparent cover for being connected with and being socketed on main shaft on axle bed lower end surface is stated, upper transparent cover center is coaxially arranged with the first blind hole from the top down
And first through hole, the first diameter of blind hole are greater than the diameter of first through hole, the diameter of first through hole is greater than the diameter of main shaft, described
Main shaft is threaded through in first through hole, at least one is provided in the first blind hole for being tightly connected main shaft lateral wall and the first blind hole
First sealing ring of inner sidewall is also fixedly connected with the extension being coaxially socketed on main shaft on the lower end surface of the upper transparent cover
Pipe, extension extend downwardly, and the internal diameter of extension is greater than the diameter of main shaft, are fixedly connected on the upper surface of the rotary drum pedestal
One pressure ring upwardly extended, at least partly pressure ring and extension are coaxially nested and are provided with the between pressure ring and extension opposite face
Two sealing rings.
As a preferred embodiment, the axle bed lower end is also connected with several upper retaining rings for being located at extension periphery, respectively
Upper retaining ring is coaxially disposed with extension and successively expands outwardly, between upper retaining ring and extension or between any two adjacent upper retaining ring
Form annular upper groove, be fixedly connected on the lower transparent cover upper surface and descend retaining ring correspondingly with upper groove, lower retaining ring and
Pressure ring coaxial arrangement, lower retaining ring are inserted upwardly into corresponding upper groove.
As a preferred embodiment, the rotary drum pedestal be disposed with from up to down second blind hole coaxial with main shaft and
Third through-hole, is provided with the third sealing ring connecting with main shaft seal in second blind hole, under the third through-hole and main shaft
Portion matches, and main shaft lower end is stretched out outside third through-hole and is threaded with locking nut.
As a preferred embodiment, rotary drum pedestal lower end offers the third blind hole coaxial with main shaft, the main shaft
Lower end and locking nut are respectively positioned in third blind hole, be detachably connected on rotary drum pedestal lower end surface one block it is blind in third
The capping of hole lower end, capping are tightly connected with rotary drum pedestal lower end surface.
As a preferred embodiment, rotary drum pedestal lower end is also provided with the 4th blind hole below third blind hole,
The oil baffle being inserted upwardly into the 4th blind hole is provided on the capping upper surface, the internal diameter of oil baffle is not less than the 4th blind hole
Top surface is tightly connected by the 4th sealing ring in internal diameter, oil baffle upper end and the 4th blind hole.
As a preferred embodiment, second sealing ring is connected to extension lower end.
The beneficial effects of the utility model are: by being fixedly connected with an extension on the lower end surface of upper transparent cover, and
Be fixedly connected with a pressure ring on lower transparent cover upper surface, make pressure ring and extension be coaxially nested and pressure ring and extension opposite face it
Between the second sealing ring is set, to axle bed and rotary drum pedestal are tightly connected, by main shaft and rotary drum internal working volume
It is isolated, so that the lubricating fluid in axle bed effectively be avoided to enter rotary drum internal working volume contaminated material.
Since extension is connected on upper transparent cover lower end surface and is extended downwardly, extension lower end has certain bullet
Property deflection, when main shaft radial-play, extension lower end can follow main shaft carry out micro-deformation, to keep extension
Gap size between pressure ring is in the range of can maintain the second sealing ring sealing effect for one, to improve extension and pressure
The sealed connection effect of ring, avoids lubricating oil from overflowing between extension and pressure ring.
On the basis of above structure, the utility model further connects several on axle bed lower end surface and is located at extension
The upper retaining ring of periphery makes to form annular upper groove between retaining ring and extension or between any two adjacent upper retaining ring, and under
Connection descends retaining ring with upper groove correspondingly on transparent cover upper surface, and lower retaining ring is inserted into corresponding upper groove, forms labyrinth
Sealing, further stops the micro lubricating oil overflowed between extension and pressure ring, avoid from extension and pressure ring it
Between the micro lubricating oil that overflows enter rotary drum internal working volume.
On the basis of above structure, the second blind hole is further arranged in the utility model on rotary drum pedestal, and second
It is provided with the third sealing ring connecting with main shaft seal in blind hole, enters rotary drum to stop lubricating oil to continue trickling downwards along main shaft
Even trickling to main shaft lower end and forms dropping liquid downwards between pedestal 4 and main shaft 2, this for the conveyer centrifugal that above hangs,
Dropping liquid will seriously pollute filter cake, and above structure then can effectively avoid lubricating fluid from polluting filter cake；Common top suspension is centrifuged
It for machine, then pollutes the environment, above structure then can effectively avoid lubricating fluid from polluting environment.
On the basis of above structure, the utility model further opens up third blind hole in rotary drum pedestal lower end, by main shaft
Lower end and locking nut are arranged in third blind hole, and are removably tightly connected one on rotary drum pedestal lower end surface and are blocked
Capping in third blind hole lower end forms dropping liquid to avoid the lubricating oil to trickle downwards along main shaft and instills filter cake.
On the basis of above structure, the utility model further opens up the 4th blind hole in rotary drum pedestal lower end, and
The oil baffle being inserted upwardly into the 4th blind hole is arranged on upper surface in capping, and the internal diameter that oil baffle is arranged is interior not less than the 4th blind hole
Top surface is tightly connected by the 4th sealing ring in diameter, oil baffle upper end and the 4th blind hole, so that trickle downwards along main shaft
Lubricating oil forms dropping liquid and instills in oil baffle, is convenient for periodic cleaning,, will be in oil baffle as long as capping is removed when cleaning
Lubricating oil outwell, then capping is installed.
Detailed description of the invention:
Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawing, in which:
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the portion the A enlarged drawing in Fig. 1；
Fig. 3 is the portion the B enlarged drawing in Fig. 1.
In FIG. 1 to FIG. 3: 1, top cover, 2, main shaft, 3, axle bed, 4, rotary drum pedestal, 5, upper transparent cover, the 6, first blind hole, 7, first
Through-hole, the 8, first sealing ring, 9, extension, 10, lower transparent cover, the 11, second through-hole, 12, pressure ring, 13, third sealing ring, 14, on
Retaining ring, 15, upper groove, 16, lower retaining ring, the 17, second blind hole, 18, third through-hole, 19, third sealing ring, 20, locking nut,
21, third blind hole, 22, capping, the 23, the 4th blind hole, 24, oil baffle, the 25, the 4th sealing ring.
Specific embodiment:
With reference to the accompanying drawing, the specific embodiment of the utility model is described in detail.
The axle sealing structure of top suspension automatic centrifuge as shown in FIG. 1 to 3, including be connected on centrifugation machine cap 1
For installing the axle bed 3 of main shaft 2 and being connected to the rotary drum pedestal 4 of 2 lower part of main shaft, socket is connected on 3 lower end surface of axle bed
Upper transparent cover 5 on main shaft 2, upper 5 center of transparent cover are coaxially arranged with the first blind hole 6 and first through hole 7, the first blind hole from the top down
6 diameter is greater than the diameter of first through hole 7, and the diameter of first through hole 7 is greater than the diameter of main shaft 2, and the main shaft 2 is threaded through the
In one through-hole 7, there are two for being tightly connected the first of 6 inner sidewall of 2 lateral wall of main shaft and the first blind hole for setting in the first blind hole 6
Sealing ring 8, the sealing ring 8 select matrix type sealing ring, are also fixedly connected with a coaxial sleeve on the lower end surface of the upper transparent cover 5
The extension 9 on main shaft 2 is connect, extension 9 extends downwardly, and the internal diameter of extension 9 is greater than the diameter of main shaft 2, the rotary drum bottom
The upper end of seat 4 is fixedly connected with lower transparent cover 10, and lower transparent cover 10 is provided centrally with the second through-hole 11 being interference fitted with main shaft 2, under
Be fixedly connected with a pressure ring 12 upwardly extended on 10 upper surface of transparent cover, at least partly pressure ring 12 it is coaxial nestable with extension 9 and
The second sealing ring 13 is provided between 9 opposite face of pressure ring 12 and extension.It is preferred that the second sealing ring 13 is connected under extension 9
Hold end.
In actual production, the lower transparent cover 10 can be integrally formed with rotary drum pedestal 4, then pressure ring 12, which is connected directly between, turns
On drum 4 upper surface of pedestal, the structure is it can be readily appreciated that not another attached drawing narration herein.
3 lower end of axle bed is located at the peripheral upper retaining ring 14 of extension 9, each upper retaining ring 14 and extension there are two being also connected with
9 are coaxially disposed and successively expand outwardly, and form ring between upper retaining ring 14 and extension 9 or between any two adjacent upper retaining ring 14
Shape upper groove 15, is fixedly connected on lower 10 upper surface of transparent cover and the lower retaining ring 16 correspondingly of upper groove 15, lower retaining ring
16 are coaxially disposed with pressure ring 12, and lower retaining ring 16 is inserted upwardly into corresponding upper groove 15.
The rotary drum pedestal 4 is disposed with second blind hole 17 and third through-hole 18 coaxial with main shaft 2, institute from up to down
State the third sealing ring 19 for being provided in the second blind hole 17 and being tightly connected with main shaft 2, the third through-hole 18 and 2 lower part phase of main shaft
Cooperation, 2 lower end of main shaft are stretched out outside third through-hole 18 and are threaded with locking nut 20.
4 lower end of rotary drum pedestal offers the third blind hole 21 coaxial with main shaft 2,2 lower end of main shaft and locking
Nut 20 is respectively positioned in third blind hole 21, is detachably connected with one on 4 lower end surface of rotary drum pedestal and is blocked under third blind hole 21
The capping 22 at end, capping 22 are tightly connected with 4 lower end surface of rotary drum pedestal.
4 lower end of rotary drum pedestal is also provided with the 4th blind hole 23 positioned at 21 lower section of third blind hole, described to cover on 22
The oil baffle 24 being inserted upwardly into the 4th blind hole 23 is provided on end face, the internal diameter of oil baffle 24 is interior not less than the 4th blind hole 23
Top surface is tightly connected by the 4th sealing ring 25 in diameter, 24 upper end of oil baffle and the 4th blind hole 23.
Utility model works principle is: the present embodiment on the lower end surface of upper transparent cover 5 by being fixedly connected with an extension
Pipe 9, and it is fixedly connected with a pressure ring 12 on lower 10 upper surface of transparent cover, keep pressure ring 12 coaxial nestable with extension 9 and in pressure 12
The second sealing ring 13 is set between 9 opposite face of ring and extension, so that axle bed 3 and rotary drum pedestal 4 are tightly connected, it will
Main shaft 2 is isolated with rotary drum internal working volume, so that the lubricating fluid in axle bed 3 effectively be avoided to enter rotary drum internal work
Space-pollution material.
Since extension 9 is connected on upper 5 lower end surface of transparent cover and is extended downwardly, 9 lower end of extension has certain
Elastic deformation amount, when 2 radial-play of main shaft, 9 lower end of extension can follow main shaft 2 to carry out micro-deformation, to keep
Gap size between extension 9 and pressure ring 12 is in the range of can maintain the second 13 sealing effect of sealing ring for one, to mention
The sealed connection effect of high extension 9 and pressure ring 12 avoids lubricating oil from overflowing between extension 9 and pressure ring 12.
The principles and effects of the invention, and the embodiment that part uses only is illustrated in above-described embodiment,
And is not intended to limit the present invention；It should be pointed out that for those of ordinary skill in the art, not departing from the invention structure
Under the premise of think of, various modifications and improvements can be made, and these are all within the scope of protection of the present invention.
Claims (6)
1. the axle sealing structure of top suspension automatic centrifuge, including being connected in centrifugation machine cap (1) for installing main shaft (2)
Axle bed (3) and the rotary drum pedestal (4) for being connected to main shaft (2) lower part are connected on the axle bed (3) lower end surface and are socketed in main shaft
(2) the upper transparent cover (5) on, upper transparent cover (5) center are coaxially arranged with the first blind hole (6) and first through hole (7) from the top down, and first
The diameter of blind hole (6) is greater than the diameter of first through hole (7), and the diameter of first through hole (7) is greater than the diameter of main shaft (2), the master
Axis (2) is threaded through in first through hole (7), at least one is provided in the first blind hole (6) for being tightly connected main shaft (2) lateral wall
With first sealing ring (8) of the first blind hole (6) inner sidewall, which is characterized in that also fixed on the lower end surface of the upper transparent cover (5) to connect
It is connected to the extension (9) being coaxially socketed on main shaft (2), extension (9) extends downwardly, and the internal diameter of extension (9) is greater than
The diameter of main shaft (2) is fixedly connected with a pressure ring (12) upwardly extended, at least portion on the upper surface of the rotary drum pedestal (4)
Potential dividing ring (12) is coaxial nestable with extension (9) and is provided with the second sealing ring between pressure ring (12) and extension (9) opposite face
(13)。
2. the axle sealing structure of top suspension automatic centrifuge according to claim 1, which is characterized in that the axle bed (3)
Lower end is also connected with several upper retaining rings (14) for being located at extension (9) periphery, each upper retaining ring (14) with extension (9) is coaxial sets
It sets and successively expands outwardly, form annular between upper retaining ring (14) and extension (9) or between any two adjacent upper retaining ring (14)
The upper end of upper groove (15), the rotary drum pedestal (4) is fixedly connected with lower transparent cover (10), solid on lower transparent cover (10) upper surface
Surely it is connected with and is descended correspondingly retaining ring (16) with upper groove (15), lower retaining ring (16) and pressure ring (12) are coaxially disposed, lower retaining ring
(16) it is inserted upwardly into corresponding upper groove (15).
3. the axle sealing structure of top suspension automatic centrifuge according to claim 2, which is characterized in that the rotary drum pedestal
(4) it is disposed with second blind hole (17) and third through-hole (18) coaxial with main shaft (2), second blind hole from up to down
(17) the third sealing ring (19) being tightly connected with main shaft (2), the third through-hole (18) and main shaft (2) lower part phase are provided in
Cooperation, main shaft (2) lower end stretch out third through-hole (18) outside and are threaded with locking nut (20).
4. the axle sealing structure of top suspension automatic centrifuge according to claim 3, which is characterized in that the rotary drum pedestal
(4) lower end offers the third blind hole (21) coaxial with main shaft (2), main shaft (2) lower end and locking nut (20) equal position
In third blind hole (21), it is detachably connected with one on rotary drum pedestal (4) lower end surface and blocks in third blind hole (21) lower end
It covers (22), capping (22) and rotary drum pedestal (4) lower end surface are tightly connected.
5. the axle sealing structure of top suspension automatic centrifuge according to claim 4, which is characterized in that the rotary drum pedestal
(4) lower end is also provided with the 4th blind hole (23) below third blind hole (21), is provided on described capping (22) upper surface
The oil baffle (24) being inserted upwardly into the 4th blind hole (23), the internal diameter of oil baffle (24) are not less than the internal diameter of the 4th blind hole (23),
Top surface is tightly connected by the 4th sealing ring (25) on oil baffle (24) upper end and the 4th blind hole (23).
6. the axle sealing structure of top suspension automatic centrifuge according to claim 1, which is characterized in that second sealing
Circle (13) is connected to extension (9) lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822118646.6U CN209406600U (en) | 2018-12-17 | 2018-12-17 | The axle sealing structure of top suspension automatic centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822118646.6U CN209406600U (en) | 2018-12-17 | 2018-12-17 | The axle sealing structure of top suspension automatic centrifuge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209406600U true CN209406600U (en) | 2019-09-20 |
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ID=67938731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822118646.6U Active CN209406600U (en) | 2018-12-17 | 2018-12-17 | The axle sealing structure of top suspension automatic centrifuge |
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| Country | Link |
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| CN (1) | CN209406600U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109482373A (en) * | 2018-12-17 | 2019-03-19 | 张家港市永达机械制造有限公司 | The axle sealing structure of top suspension automatic centrifuge |
| CN110695848A (en) * | 2019-11-11 | 2020-01-17 | 安阳德一机床附件制造有限公司 | High-precision numerical control grinding machine double-end electric spindle |
-
2018
- 2018-12-17 CN CN201822118646.6U patent/CN209406600U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109482373A (en) * | 2018-12-17 | 2019-03-19 | 张家港市永达机械制造有限公司 | The axle sealing structure of top suspension automatic centrifuge |
| CN110695848A (en) * | 2019-11-11 | 2020-01-17 | 安阳德一机床附件制造有限公司 | High-precision numerical control grinding machine double-end electric spindle |
| CN110695848B (en) * | 2019-11-11 | 2024-05-14 | 安阳德一机床附件制造有限公司 | Double-end motorized spindle for high-precision numerical control grinding machine |
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