CN202659752U - Combined sealing type universal shaft - Google Patents
Combined sealing type universal shaft Download PDFInfo
- Publication number
- CN202659752U CN202659752U CN 201220282302 CN201220282302U CN202659752U CN 202659752 U CN202659752 U CN 202659752U CN 201220282302 CN201220282302 CN 201220282302 CN 201220282302 U CN201220282302 U CN 201220282302U CN 202659752 U CN202659752 U CN 202659752U
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- CN
- China
- Prior art keywords
- protecting cover
- external splines
- protective sleeve
- positioning ring
- ring
- 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.)
- Expired - Fee Related
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- Sealing Devices (AREA)
Abstract
The utility model discloses a combined sealing type universal shaft. The combined sealing type universal shaft comprises a left universal joint fork provided with an internal spline, and a right universal joint fork provided with an external spline. A first protective sleeve is sheathed outside the internal spline, a first sealing ring is arranged between the first protective sleeve and the external spline, and the internal spline, the external spline, the first protective sleeve and the first sealing ring form a first airtightness layer; a second protective sleeve is sheathed outside the first protective sleeve, a second sealing ring is arranged between the first protective sleeve and the second protective sleeve, and the first protective sleeve, the second protective sleeve, the first sealing ring and the second sealing ring form a second airtightness layer; a left positioning ring and a right positioning ring are respectively and fixedly arranged on the first protective sleeve and the second protective sleeve and are respectively and fixed with two ends of a dustproof sleeve; and the first protective sleeve, the second protective sleeve, the left positioning ring, the right positioning ring, the second sealing ring and the dustproof sleeve form a third airghtness layer. Through the arrangement of the three airtightness layers, good lubricating state and the telescopic flexibility between the internal spline and the external spline of the universal shaft can be ensured, and further the quality of casting blanks is ensured.
Description
Technical field
The utility model relates to cardan shaft, refers to particularly a kind of combination seal formula cardan shaft that is mainly used in the driving roll in fan-shaped section of continuous casting transmission.
Background technique
In continuous casting is produced, the cardan shaft that is used on the continuous casting machine fan-shaped segment is generally common SWC type cardan shaft, its structure is relatively simple, the Telescopic that relatively moves to realize cardan shaft by external splines in it, do not design special seal arrangement between the interior external splines, the sealing effect between the therefore interior external splines is relatively poor, and dust easily enters and destroys its lubrication effect between the interior external splines, cause external splines serious wear in the cardan shaft, working life is short.In addition; because cardan shaft is worked in two cold houses of circumstance complication for a long time; spraying water in two cold houses and protecting slag are easy to enter between the interior external splines of cardan shaft; cause cardan shaft jam and flexible difficulty; make the drive roller transmission not steady; cause liquid level drop, had a strong impact on slab quality, and give normally opening to water and having brought very large potential safety hazard of continuous casting.
Summary of the invention
The purpose of this utility model is exactly to overcome the defective that existing drive roller transmission cardan shaft exists, and provides a kind of and can effectively overcome abominable working environment, guarantees the cardan shaft with combined labyrinth and carbon gland of the interior external splines good lubrication state of cardan shaft and flexible flexibility.
For achieving the above object, the combination seal formula cardan shaft that the utility model is designed, comprise left universal-joint fork and right universal-joint fork, described left universal-joint fork is fixed with internal spline, described right universal-joint fork is fixed with external splines, described internal spline can be embedded in the external splines and its engagement fit with moving axially, its special way is: the periphery of described external splines is set with the first protecting cover, the left end of described the first protecting cover is fixedly connected with left universal-joint fork, be provided with the first seal ring between the right-hand member of described the first protecting cover and the outer wall of external splines, described the first seal ring, the first protecting cover, external splines and internal spline enclose the first confined layer; The periphery of described the first protecting cover is set with the second protecting cover, the right-hand member of described the second protecting cover is fixedly connected with the outer wall of external splines, be provided with the second seal ring between the outer wall of the left end of described the second protecting cover and the first protecting cover, described the second seal ring, the second protecting cover, the first seal ring and the first protecting cover enclose the second confined layer; Be respectively arranged with left positioning ring and right positioning ring on the outer wall of described the first protecting cover and the second protecting cover, between described left positioning ring and the right positioning ring dirt-proof boot is installed, described dirt-proof boot, the first protecting cover, the second protecting cover, left positioning ring, right positioning ring and the second seal ring enclose the 3rd confined layer.Like this, three-layer sealed by arranging, guaranteed external splines good lubrication state in the cardan shaft.
Further, described dirt-proof boot is the folding telescopic dirt-proof boot.Like this, in guaranteeing cardan shaft, in the external splines good lubrication state, also guaranteed flexible flexibility.
Further, the two ends of described folding telescopic dirt-proof boot are embedded in respectively in the groove on left positioning ring and the right positioning ring.Like this, can realize the quick-replaceable of dirt-proof boot, and ensure that dirt-proof boot the phenomenon that gets loose can not occur in movement process, improve fixing and the reliability of installing.
Further, be fixed with right lifting block on the outer wall of described external splines, the right-hand member of described the second protecting cover is fixedly connected with the outer wall of external splines by right lifting block; Be fixed with left lifting block on the outer wall of described the second protecting cover.Like this, the Security of energy effective guarantee cardan shaft handling, and improve installation efficiency.
The utility model has the advantage of: designed combination seal formula cardan shaft, at the interior external splines peripheral hardware of cardan shaft in respect of three-layer sealed, can effectively avoid steam, dust or foreign material to enter between the interior external splines, ensure the lubrication effect of interior external splines, improve the working life of cardan shaft; Simultaneously, be designed with two lifting blocks at cardan shaft second layer protecting cover, the Security of energy effective guarantee cardan shaft handling, and improve installation efficiency; Utilize the Telescopic dust-proof cover, efficiently solve cardan shaft in telescopic process, the problem that two relative moving elements are difficult to seal has improved the sealing of cardan shaft; Be designed with groove on the positioning ring of Telescopic dust-proof cover, can realize the quick-replaceable of Telescopic dust-proof cover, and ensure that Telescopic dust-proof is enclosed within the movement process and the phenomenon that gets loose can not occur, improved fixing and the reliability of installing.
Description of drawings
Fig. 1 is a kind of main TV structure schematic diagram of combination seal formula cardan shaft.
Fig. 2 is B section enlarged diagram among Fig. 1.
Fig. 3 is the A-A sectional view among Fig. 1.
Each parts label is as follows among the figure: internal spline 1, external splines 2, right lifting block 3, the second protecting cover 4, the first seal ring 5, the first protecting cover 6, left lifting block 7, right positioning ring 8, the second seal ring 9, dirt-proof boot 10, left positioning ring 11, left universal-joint fork 12, right universal-joint fork 13, the first confined layer 14, the second confined layer 15, the 3rd confined layer 16.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Combination seal formula cardan shaft shown in the figure, comprise left universal-joint fork 12 and right universal-joint fork 13, left universal-joint fork 12 is welded with internal spline 1, right universal-joint fork 13 is welded with external splines 2, internal spline 1 can be embedded in the external splines 2 and its engagement fit with moving axially, the periphery of external splines 2 is set with the first protecting cover 6, the left end of the first protecting cover 6 and 12 welding of left universal-joint fork, be fixed with the first seal ring 5 between the outer wall of the right-hand member of the first protecting cover 6 and external splines 2, it is with 6 motions of the first protecting cover, and between the inner ring of the first seal ring 5 and external splines 2, leave the gap of certain motion, satisfy the flexible requirement of cardan shaft.The first seal ring 5, the first protecting cover 6, external splines 2 and internal spline 1 enclose the first confined layer 14; The periphery of the first protecting cover 6 is set with the second protecting cover 4, the outer wall of the right-hand member of the second protecting cover 4 and external splines 2 is integrally welded, be fixed with the second seal ring 9 between the outer wall of the left end of the second protecting cover 4 and the first protecting cover 6, it is with 4 motions of the second protecting cover, leave the gap of certain motion between the inner ring of the second seal ring 9 and the first protecting cover 6, satisfy the flexible requirement of cardan shaft.The second seal ring 9, the second protecting cover 4, the first seal ring 5 and the first protecting cover 6 enclose the second confined layer 15; Be respectively arranged with left positioning ring 11 and right positioning ring 8 on the outer wall of the first protecting cover 6 and the second protecting cover 4, the dirt-proof boot 10 of foldable telescopic is installed between left positioning ring 11 and the right positioning ring 8, and the two ends of folding telescopic dirt-proof boot 10 are embedded in respectively in the groove on left positioning ring 11 and the right positioning ring 8.Dirt-proof boot 10, the first protecting cover 6, the second protecting cover 4, left positioning ring 11, right positioning ring 8 and the second seal ring 9 enclose the 3rd confined layer 16.Simultaneously, be welded with the right-hand member of right lifting block 3, the second protecting covers 4 on the outer wall of external splines 2 by the outer wall welding of right lifting block 3 with external splines 2; Be welded with left lifting block 7 on the outer wall of the second protecting cover 4.
The utility model is three-layer sealed by putting at the interior external splines peripheral hardware of cardan shaft, can effectively avoid steam, dust or foreign material to enter between the interior external splines, has ensured the lubrication effect of interior external splines, has improved the working life of cardan shaft; Simultaneously, be designed with two lifting blocks at cardan shaft second layer protecting cover, the Security of energy effective guarantee cardan shaft handling, and improve installation efficiency; Utilize the Telescopic dust-proof cover, efficiently solve cardan shaft in telescopic process, the problem that two relative moving elements are difficult to seal has improved the sealing of cardan shaft; Be designed with groove on the positioning ring of Telescopic dust-proof cover, can realize the quick-replaceable of Telescopic dust-proof cover, and ensure that Telescopic dust-proof is enclosed within the movement process and the phenomenon that gets loose can not occur, improved fixing and the reliability of installing.
Claims (4)
1. combination seal formula cardan shaft, comprise left universal-joint fork (12) and right universal-joint fork (13), described left universal-joint fork (12) is fixed with internal spline (1), described right universal-joint fork (13) is fixed with external splines (2), described internal spline (1) can be embedded in the external splines (2) and its engagement fit with moving axially, it is characterized in that: the periphery of described external splines (2) is set with the first protecting cover (6), the left end of described the first protecting cover (6) is fixedly connected with left universal-joint fork (12), be provided with the first seal ring (5) between the outer wall of the right-hand member of described the first protecting cover (6) and external splines (2), described the first seal ring (5), the first protecting cover (6), external splines (2) and internal spline (1) enclose the first confined layer (14); The periphery of described the first protecting cover (6) is set with the second protecting cover (4), the right-hand member of described the second protecting cover (4) is fixedly connected with the outer wall of external splines (2), be provided with the second seal ring (9) between the outer wall of the left end of described the second protecting cover (4) and the first protecting cover (6), described the second seal ring (9), the second protecting cover (4), the first seal ring (5) and the first protecting cover (6) enclose the second confined layer (15); Be respectively arranged with left positioning ring (11) and right positioning ring (8) on the outer wall of described the first protecting cover (6) and the second protecting cover (4), between described left positioning ring (11) and the right positioning ring (8) dirt-proof boot (10) is installed, described dirt-proof boot (10), the first protecting cover (6), the second protecting cover (4), left positioning ring (11), right positioning ring (8) and the second seal ring (9) enclose the 3rd confined layer (16).
2. combination seal formula cardan shaft according to claim 1, it is characterized in that: described dirt-proof boot (10) is the folding telescopic dirt-proof boot.
3. combination seal formula cardan shaft according to claim 2 is characterized in that: the two ends of described folding telescopic dirt-proof boot (10) are embedded in respectively in the groove on left positioning ring (11) and the right positioning ring (8).
4. according to claim 1 and 2 or 3 described combination seal formula cardan shafts, it is characterized in that: be fixed with right lifting block (3) on the outer wall of described external splines (2), the right-hand member of described the second protecting cover (4) is fixedly connected with by the outer wall of right lifting block (3) with external splines (2); Be fixed with left lifting block (7) on the outer wall of described the second protecting cover (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220282302 CN202659752U (en) | 2012-06-15 | 2012-06-15 | Combined sealing type universal shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220282302 CN202659752U (en) | 2012-06-15 | 2012-06-15 | Combined sealing type universal shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202659752U true CN202659752U (en) | 2013-01-09 |
Family
ID=47454661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220282302 Expired - Fee Related CN202659752U (en) | 2012-06-15 | 2012-06-15 | Combined sealing type universal shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202659752U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151302A (en) * | 2015-03-24 | 2016-11-23 | 池州学院 | A kind of extension type universal coupling |
| CN107269845A (en) * | 2017-07-10 | 2017-10-20 | 河南鑫轴传动机械有限公司 | A kind of tube-shape sealed protective case of power transmission shaft |
-
2012
- 2012-06-15 CN CN 201220282302 patent/CN202659752U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151302A (en) * | 2015-03-24 | 2016-11-23 | 池州学院 | A kind of extension type universal coupling |
| CN107269845A (en) * | 2017-07-10 | 2017-10-20 | 河南鑫轴传动机械有限公司 | A kind of tube-shape sealed protective case of power transmission shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171030 Address after: 430083, Hubei Wuhan Qingshan District Factory No. 2 Gate joint stock company organs Patentee after: Wuhan iron and Steel Company Limited Address before: 430080 Wuchang, Hubei Friendship Road, No. A, block, floor 999, 15 Patentee before: Wuhan Iron & Steel (Group) Corp. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20190615 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |