CN202157307U - Bottom shaft axial positioning device - Google Patents
Bottom shaft axial positioning device Download PDFInfo
- Publication number
- CN202157307U CN202157307U CN2011202130088U CN201120213008U CN202157307U CN 202157307 U CN202157307 U CN 202157307U CN 2011202130088 U CN2011202130088 U CN 2011202130088U CN 201120213008 U CN201120213008 U CN 201120213008U CN 202157307 U CN202157307 U CN 202157307U
- Authority
- CN
- China
- Prior art keywords
- shaft
- lower shaft
- positioning device
- bottom shaft
- wear
- 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
Links
Images
Abstract
The utility model discloses a bottom shaft axial positioning device, which belongs to the steel dam gate technical field. The device comprises a reaming base. The reaming base is provided with a shaft hole. A shaft sleeve sleeved on a bottom shaft is cooperatively equipped inside the shaft hole. Bottom shaft parts located on the two outer ends of the shaft sleeve are respectively provided with a limiting sleeve. A gasket is equipped between each limiting sleeve and the end of the shaft sleeve. Oil seals are equipped among the two inner ends of the shaft hole and the outer circles of the limiting sleeves. The two outer sides of each oil seal are provided with glands fixed on the two sides of the reaming base. A plurality of wear-resistant thrust pieces are circumferentially equipped among the glands and the limiting sleeves. By equipping the wear-resistant thrust pieces, the bottom shaft axial positioning device is enabled to maintain flexible rotation between the reaming base and the bottom shaft when the bottom shaft is rotating and meanwhile effectively prevents the bottom shaft from axially moving. Thus, the long-term flexible running of a gate is ensured. Furthermore, the bottom shaft axial positioning device which has the advantages of excellent sealing performances and reliable use can be reliably applied in steel dam gates.
Description
Technical field
The utility model relates to a kind of steel dam anchor gate device, particularly on the steel dam anchor gate because the fixing positioner of lower shaft.
Background technology
In the prior art, a kind of steel dam lower shaft axial location mechanism is arranged, comprise free bearing; Free bearing is provided with axis hole; Be equipped with the axle sleeve that is sleeved on the lower shaft in the axis hole, also be set with the stop collar that moves along lower shaft from two ends restrictions axle sleeve on the lower shaft, be connected through radial screw between stop collar and the lower shaft; Be provided with oil sealing between inboard, axis hole two ends and the stop collar cylindrical, two outsides of oil sealing are provided with the oil sealing cover that is fixed on the free bearing both sides.Its weak point is: lower shaft in use, the thrust that comes from axial direction can cause producing excessive wear between stop collar and the axle sleeve, when serious, can cause oil seal failure, influences the steel dam anchor gate long-time running.
The utility model content
The purpose of the utility model provides a kind of lower shaft axial direction positioning device, and the lower shaft of steel dam can be moved reliably and with long-term, and axial location is good.
The purpose of the utility model is achieved in that a kind of lower shaft axial direction positioning device; Comprise free bearing; Free bearing is provided with axis hole; Be equipped with the axle sleeve that is sleeved on the lower shaft in the said axis hole, be positioned at the outside, axle sleeve two ends on the lower shaft and be respectively installed with stop collar, be provided with packing ring between said stop collar and the sleeve end; Be provided with oil sealing between inboard, said axis hole two ends and the stop collar cylindrical, two outsides of oil sealing are provided with the gland that is fixed on the free bearing both sides; Be circumferentially with some wear-resisting thrust pieces between said gland and the stop collar.
This device is through being provided with the motion of stop collar restriction lower shaft and axle sleeve, makes lower shaft can keep the relative axial position of itself and free bearing, avoided the asymmetric gap of generation between gate flap and lock wall; The setting of oil sealing can stop foreign matter to get between lower shaft and the axle sleeve, improves friction condition, reduces wear.The setting of wear-resisting thrust piece makes lower shaft when rotating, and can pass to free bearing through wear-resisting thrust piece from axial thrust; Wear-resisting thrust piece itself is not easy to wear; Compared with prior art, the beneficial effect of the utility model is: this device makes and keeps between free bearing and the lower shaft rotating flexibly, can effectively limit lower shaft along its axial direction play simultaneously; Guaranteed the gate long-term operation flexibly, good seal, use be reliable, and it can reliably be used on the steel dam anchor gate.
For guaranteeing wear-resisting thrust piece accurate positioning, the end face of said stop collar one side is provided with some locating holes, and wear-resisting thrust piece one end cooperates one by one and is installed in the said locating hole, and the wear-resisting thrust piece other end protrudes in the stop collar surface.
For reducing the wearing and tearing between axle sleeve and the lower shaft, be provided with anti-wearing liner between said axle sleeve and the lower shaft.
For ease of sealing, said gland outer face and free bearing both sides end face are positioned on the same plane.This designs simplification the sealing surface between free bearing and the lower shaft, make it be reduced to the plane by original cascaded surface, made things convenient for sealing.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the partial enlarged drawing of A among Fig. 1.
Wherein, 1 anti-wearing liner, 2 axle sleeves, 3 free bearings, 4 glands, 5 oil sealings, 6 wear-resisting thrust pieces, 7 stop collars, 8 lower shafts, 9 packing rings.
The specific embodiment
As shown in the figure, for a kind of lower shaft axial direction positioning device, comprise free bearing 3; Free bearing 3 is provided with axis hole; Be equipped with the axle sleeve 2 that is sleeved on the lower shaft 8 in the said axis hole, be positioned at the outside, axle sleeve 2 two ends on the lower shaft 8 and be respectively installed with stop collar 7, be provided with packing ring 9 between the end of stop collar 7 and axle sleeve 2; Be provided with oil sealing 5 between inboard, axis hole two ends and stop collar 7 cylindricals, two outsides of oil sealing 5 are provided with through the gland 4 of screw in the free bearing both sides; Be circumferentially with some wear-resisting thrust pieces 6 between gland 4 and the stop collar 7.The end face of stop collar 7 one sides is provided with some locating holes, and wear-resisting thrust piece 6 one ends cooperate one by one and are installed in the said locating hole, and wear-resisting thrust piece 6 other ends protrude in stop collar 7 surfaces; Also be provided with anti-wearing liner 1 between axle sleeve 2 and the lower shaft 8; Gland 4 outer faces and free bearing 3 both sides end faces are positioned on the same plane.Above-mentioned anti-wearing liner, wear-resisting thrust piece, packing ring are processed by the NGA material.
The utility model is not limited to the foregoing description; On the basis of the disclosed technical scheme of the utility model; Those skilled in the art is according to disclosed technology contents; Do not need performing creative labour just can make some replacements and distortion to some technical characterictics wherein, these replacements and distortion are all in the protection domain of the utility model.
Claims (4)
1. lower shaft axial direction positioning device; Comprise free bearing, free bearing is provided with axis hole, is equipped with the axle sleeve that is sleeved on the lower shaft in the said axis hole; Be positioned at the outside, axle sleeve two ends on the lower shaft and be respectively installed with stop collar, it is characterized in that: be provided with packing ring between said stop collar and the sleeve end; Be provided with oil sealing between inboard, said axis hole two ends and the stop collar cylindrical, two outsides of oil sealing are provided with the gland that is fixed on the free bearing both sides; Be circumferentially with some wear-resisting thrust pieces between said gland and the stop collar.
2. lower shaft axial direction positioning device according to claim 1; It is characterized in that: the end face of said stop collar one side is provided with some locating holes; Wear-resisting thrust piece one end cooperates one by one and is installed in the said locating hole, and the wear-resisting thrust piece other end protrudes in the stop collar surface.
3. lower shaft axial direction positioning device according to claim 1 and 2 is characterized in that: be provided with anti-wearing liner between said axle sleeve and the lower shaft.
4. lower shaft axial direction positioning device according to claim 1 and 2 is characterized in that: said gland outer face and free bearing both sides end face are positioned on the same plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202130088U CN202157307U (en) | 2011-06-22 | 2011-06-22 | Bottom shaft axial positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202130088U CN202157307U (en) | 2011-06-22 | 2011-06-22 | Bottom shaft axial positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202157307U true CN202157307U (en) | 2012-03-07 |
Family
ID=45764949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202130088U Expired - Fee Related CN202157307U (en) | 2011-06-22 | 2011-06-22 | Bottom shaft axial positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202157307U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103103965A (en) * | 2013-01-30 | 2013-05-15 | 江苏武东机械有限公司 | Steel dam strobe |
| CN105113468A (en) * | 2015-09-17 | 2015-12-02 | 芜湖市银鸿液压件有限公司 | Safe supporting device of hydraulic lifting gate |
-
2011
- 2011-06-22 CN CN2011202130088U patent/CN202157307U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103103965A (en) * | 2013-01-30 | 2013-05-15 | 江苏武东机械有限公司 | Steel dam strobe |
| CN105113468A (en) * | 2015-09-17 | 2015-12-02 | 芜湖市银鸿液压件有限公司 | Safe supporting device of hydraulic lifting gate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104061317B (en) | Gear reduction unit high speed shaft non-contacting seal device | |
| CN105370890A (en) | Low-friction dynamic seal | |
| CN101806362A (en) | Mechanical sealing device of middle rotating ring | |
| CN202157307U (en) | Bottom shaft axial positioning device | |
| CN105545942A (en) | Rotary supporting bearing | |
| CN204175966U (en) | The mechanical seal structure of lathe lower velocity shaft | |
| CN102022541B (en) | A rotary dynamic sealing device for boat-carrying photoelectric equipment | |
| CN203967878U (en) | A kind of dust-proof motor | |
| CN201772069U (en) | Intermediate rotation ring mechanical sealing device | |
| CN203703138U (en) | Mechanical sealing device | |
| CN103803305A (en) | Double-sealed rotary valve | |
| CN201277266Y (en) | Bearing sealing ring and deep groove ball bearing | |
| CN204716987U (en) | Ring type magnetic suspension running shaft magnetic fluid sealing structure | |
| CN201547429U (en) | Double-channel rotatable water joint device | |
| CN206555446U (en) | A kind of self-lubricating non-contact mechanical seal device | |
| CN202883746U (en) | Bearing lubricant sealing structure | |
| CN206830649U (en) | A kind of backing roll | |
| CN104712766A (en) | Labyrinth type bearing closing device | |
| CN105134768B (en) | A kind of maintenance-free dry for solar tracking runs pivoting support structure | |
| CN201396434Y (en) | Novel non-abrasion shaft oil seal | |
| CN201801849U (en) | Axial positioning mechanism for bottom shaft of steel dam | |
| CN210034404U (en) | Follow-up shaft head sealing oil baffle device | |
| CN207975145U (en) | The sliding bearing sealing structure of decanter centrifuge screw spindle | |
| CN102261382A (en) | Angular contact ball bearing with grease storage groove on outer ring | |
| CN102619987A (en) | Bearing sealing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120307 Termination date: 20180622 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |