CN101440903A - High seal flexible crane tube steering journal - Google Patents
High seal flexible crane tube steering journal Download PDFInfo
- Publication number
- CN101440903A CN101440903A CNA2007101583267A CN200710158326A CN101440903A CN 101440903 A CN101440903 A CN 101440903A CN A2007101583267 A CNA2007101583267 A CN A2007101583267A CN 200710158326 A CN200710158326 A CN 200710158326A CN 101440903 A CN101440903 A CN 101440903A
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- tube
- steering
- bearing
- plane
- exterior
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Abstract
A highly sealing flexible crane tube steering knuckle relates to movable joint technology, aiming at improving the inflexibility of the prior steering knuckle. The highly sealing flexible crane tube steering knuckle comprises an exterior fiber tube type sealing foundation, an exterior tube mechanically connected with the foundation and a steering tube in the exterior tube. In the cavity formed by the exterior tube and steering tube, an upper surface bearing press cap, an upper surface rolling ball, an upper surface bearing seat, a low surface bearing press cap, a low surface rolling ball are arranged from the top down. A rabbet water sealing cover engaged with the exterior tube is arranged on the top of the exterior tube. A needle bearing is installed on the top of the cavity formed by the exterior tube and the steering tube. A needle roller is arranged between the needle bearing and the exterior tube. A needle roller is arranged between the circumference elevation of the lower chassis of the steering tube and interior surface of the exterior tube. A sealing ring with the bearing is arranged between the lower chassis plane of the steering tube and upper plane of the exterior fiber tube type sealing foundation. The invention is flexible in rotation, portable, good in sealability and long in service life.
Description
Technical field
The invention belongs to the mechanical steering field of sealing technology, especially about carrying the pressure flow body, under air-proof condition, make knuckle in relative rotation, is the crane tube steering journal of using about loading and unloading liquid furtherly.
Background technique
Chinese patent 2005200909792 discloses a kind of complete lubricated high sealing crane tube steering journal, and it is mainly by the steering tube base, single face flute profile seal ring, and steering tube, last lower plane ball and outer sleeve composition have certain good effect.But crane tube steering journal is being installed, in operation oil filling riser process, is being detected and find crane tube steering journal, laying particular stress at oil filling riser that deviation appears in center of rotation under the power effect.Particularly single face inside channel seal ring seal clearance is difficult to accurately control, as the gap transfer less, then rotate dumb, as the gap transfer bigger, poorly sealed, seepage easily, the sealing effect of single face inside channel seal ring is bad when carrying negative pressure fluid in addition, easily seepage.
Content of the present invention
The present invention is directed to the prior art deficiency, a kind of center of rotation zero deflection is provided, surface friction drag is little, rotate light flexibly, when carrying malleation or negative pressure fluid, the sealing effect unanimity, seal clearance is controlled, has the seal ring of bearing, needn't take a lot of trouble during installation to adjust, in addition, because what seal ring adopted is dual face seals, form vacuum in the middle of the sealing surface, contain enough lubricant oil, make sealing tighter, light sliding.
The technical solution adopted for the present invention to solve the technical problems is, include external fiber tube formula sealed base, the outer sleeve that is connected with this base tool, be located at the steering tube in the outer sleeve, in the cavity that outer sleeve and steering tube constituted, be provided with the plane bearing lid from top to bottom, last plane ball, last planar axes bearing, the lower plane bearing gland, the lower plane ball is characterized in that being provided with at the outer sleeve top seam water shutoff lid with its engagement, on the cavity top that outer sleeve and steering tube constituted, be provided with the needle bearing body, be provided with needle roller between needle bearing body and the outer sleeve, be provided with down needle roller between rabbet water facade and the outer sleeve internal surface, be provided with the seal ring that has bearing between the last plane of steering tube lower chassis plane and external fiber tube formula sealed base.
The said seal ring that has bearing is to be composited by steel core and oil resistant cushion rubber, and wherein the steel core working surface is provided with the ball groove, is provided with ball in the groove, and around the oil resistant cushion rubber parcel steel core, the oil resistant cushion rubber has four angles, and the groove that is used to seal is formed on the limit, adjacent angle.Steel core is provided with groove on the left and right side, oil resistant cushion rubber inner wall is provided with fin, is bumped in the groove of the steel core left and right sides and combines closely.
Good effect of the present invention is: oil filling riser center of rotation invariant position, and surface friction drag is little, rotates light and flexible, and seal clearance is controlled, installs easily, and the sealed groove place forms vacuum, and oil-containing, and enough lubricating abilities are arranged, and seals more reliable.Under malleation or negative pressure working condition, the sealing effect unanimity, no seepage and no leakage is installed easily long service life.
Description of drawings:
Fig. 1 is that structure of the present invention is partly cutd open schematic representation.
Fig. 2 is the seal ring cross-sectional configuration schematic representation that has bearing among Fig. 1
1 flange among the figure, 2 tightening nuts, 3 external fiber tube formula sealed bases, 4 have the seal ring of bearing, 5 plane balls, 6 outer sleeves, 7 times needle rollers, 8 steering tube lower chassis, 9 lower plane balls, 10 lower plane bearing glands, planar axes bearing on 11, plane ball on 12, plane bearing gland on 13,14 needle bearing bodies, needle roller on 15,16 seam water shutoffs lid, 17 oilhole plugs, 18 marine glues, 19 steel cores, 20 oil resistant cushion rubbers, 21 ball grooves, 22 grooves, 23 fins, 24 steering tubes.
Embodiment
Below in conjunction with accompanying drawing this present invention is described further:
It includes external fiber tube formula sealed base 3, the outer sleeve 6 that is connected with this base tool, be located at the steering tube 24 in this pipe, in the cavity that outer sleeve 6 and steering tube 24 are constituted, be provided with plane bearing gland 13 from top to bottom, last plane ball 12, last planar axes bearing 11, lower plane bearing gland 10, lower plane ball 9, be provided with the needle bearing of forming by needle bearing body 14 and last needle roller 15 on the cavity top that outer sleeve 6 and steering tube 24 are constituted, the steering tube lower chassis 8 of steering tube 24 lower ends, be provided with down needle roller 7 on its circumference facade and between outer sleeve 6 internal surfaces, be provided with the seal ring 4. that has bearing between steering tube lower chassis 8 bottom planes of steering tube 24 lower ends and the last plane of external fiber tube formula sealed base 3
The said seal ring 4 that has bearing is composited by steel core 19 and oil resistant cushion rubber 20, wherein steel core 19 working surfaces are provided with ball groove 21, be provided with plane ball 5 in the ball groove 21, oil resistant cushion rubber 20 parcel steel cores 19 surrounded surfaces, oil resistant cushion rubber 20 has four angles, groove is formed on the limit, adjacent angle, and steel core 19 left and right sides are provided with groove 22, and oil resistant cushion rubber 20 inner walls are provided with and are used to be bumped in the steel core left and right sides groove 22 and the fin 23 of combining closely.
External fiber tube formula sealed base 3 is provided with the tightening nut 2 that is used for locking jacket pipe 6, and the corresponding flat ball arranges that the district is provided with oilhole plug 17 on the outer sleeve 6, injects drier oil by its hole to the plane ball, lubricated each ball position, plane.
Claims (4)
1, high seal flexible crane tube steering journal, include external fiber tube formula sealed base, outer sleeve that is connected with this base tool and the steering tube that is located in this pipe, in the cavity that outer sleeve and steering tube constituted, be provided with the plane bearing gland from top to bottom, last plane ball, last planar axes bearing, the lower plane bearing gland, the lower plane ball, it is characterized in that being provided with seam water shutoff lid with its engagement at the outer sleeve top, on the cavity top that outer sleeve and steering tube constituted, be provided with the needle bearing body, be provided with needle roller between needle bearing body and the outer sleeve, be provided with down needle roller between rabbet water facade and the outer sleeve internal surface, be provided with the seal ring that has bearing between the plane on steering tube lower chassis bottom plane and the external fiber tube formula sealed base.
2, high seal flexible crane tube steering journal according to claim 1 is characterized in that the said bearing sealed ring that has, and is composited by steel core and oil resistant cushion rubber.
3, high seal flexible crane tube steering journal according to claim 2 is characterized in that said steel core, and plane is provided with groove on it, is provided with the plane ball in the groove; The steel core left and right side is provided with groove.
4, high seal flexible crane tube steering journal according to claim 2 is characterized in that said oil resistant cushion rubber, from section, has four angles, and groove is formed on the limit, adjacent angle, and its inner rim wall left and right side surface has fin, and is bumped in the groove of steel core left and right side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101583267A CN101440903A (en) | 2007-11-19 | 2007-11-19 | High seal flexible crane tube steering journal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101583267A CN101440903A (en) | 2007-11-19 | 2007-11-19 | High seal flexible crane tube steering journal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101440903A true CN101440903A (en) | 2009-05-27 |
Family
ID=40725456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101583267A Pending CN101440903A (en) | 2007-11-19 | 2007-11-19 | High seal flexible crane tube steering journal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101440903A (en) |
-
2007
- 2007-11-19 CN CNA2007101583267A patent/CN101440903A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20090527 |
|
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |