CN104315148A - Improved sealing element for universal joint of cross axle type universal shaft coupler - Google Patents
Improved sealing element for universal joint of cross axle type universal shaft coupler Download PDFInfo
- Publication number
- CN104315148A CN104315148A CN201410517849.6A CN201410517849A CN104315148A CN 104315148 A CN104315148 A CN 104315148A CN 201410517849 A CN201410517849 A CN 201410517849A CN 104315148 A CN104315148 A CN 104315148A
- Authority
- CN
- China
- Prior art keywords
- seal
- sealing lip
- lip opening
- sealing element
- seal lip
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/324—Arrangements for lubrication or cooling of the sealing itself
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Of Bearings (AREA)
Abstract
The invention discloses an improved sealing element for a universal joint of a cross axle type universal shaft coupler. The improved sealing element comprises a sealing element body, wherein the outer side of the sealing element body is provided with a main sealing lip opening and a sub sealing lip opening which are inclined relative to the sealing element body, each of the two sealing lip opening is inclined in the direction towards the end part of an opening end of a bearing sleeve, the sub sealing lip opening is positioned in the edge position of the sealing element body, an angle being 40 degrees to 50 degrees is formed between the main sealing lip opening and the axial direction of the sealing element body, an angle being 25 degrees to 30 degrees is formed between the sub sealing lip opening and the axial direction of the sealing element body, a U-shaped cavity is formed between the main sealing lip opening and the sub sealing lip opening, the thickness of the main sealing lip opening is 0.8 to 1.5mm, and the thickness of the sub sealing lip opening is 80 percent of the thickness of the main sealing lip opening. The improved sealing element has the advantages that the outer side of the sealing element body is provided with the main sealing lip opening and the sub sealing lip opening, so that a needle roller bearing of the universal joint is attached in the position of the sealing lip openings through the centrifugal force in the rotating process, the effect of fully lubricating the sealing lip parts is achieved, the abrasion is reduced, and the service life is prolonged.
Description
Technical field
The invention belongs to coupling technical field, particularly relate to a kind of universal coupling with spider universal joint improved seal.
Background technique
Universal coupling with spider is a kind of the most frequently used coupling, utilizes the feature of its structure can make comparatively not large at same axis or axis knuckle or move axially larger diaxon isogonism speed continuous rotary, and reliably transmitting torque and motion.At present, transmitting torque in the mechanical axis system of metallurgy, lifting, engineering transportation, mine, oil, boats and ships, coal, rubber, papermaking equipment and other Heavy duty maching industry has been widely used in.
Traditional universal coupling with spider, its universal joint comprises cross axle, the axle journal of cross axle is provided with needle bearing, needle bearing comprises bearing housing and needle roller, the axle journal of cross axle is arranged in bearing housing by needle roller, is provided with Sealing between the axle journal of cross axle and bearing housing, and conventional Sealing is be provided with the seal of skeleton or non-skeleton seal, seal internal diameter is provided with multiple lip, and multiple lip contacts with the axle journal of cross axle.Because the lip on above-mentioned seal is towards needle bearing inner ring, in working procedure, lubricating grease gets rid of to bearing housing under centrifugal action, inner ring lip position lacks lubrication, frictional force increases, due to rubbing action, seal temperature raises, inner ring lip position heat shrinkable, frictional force is larger, causes the vicious circle of lip position.
Summary of the invention
For solving the problem, the object of this invention is to provide simple, the reasonable in design novelty of a kind of structure, universal coupling with spider universal joint improved seal that using effect is good.
For achieving the above object, the present invention adopts following technological scheme:
A kind of universal coupling with spider universal joint improved seal, it comprises seal body, the primary seal lip that seal body arranged outside has opposing seal body to tilt, secondary seal lip, two seal lips all tilt towards the direction of cage openings end end, primary seal lip is near cage openings end end, secondary seal lip is positioned at the marginal position of seal body, primary seal lip and seal body are axially in the angle of 40 ° ~ 50 °, secondary seal lip and seal body are axially in the angle of 25 ° ~ 30 °, U-shaped cavity is formed between primary seal lip and secondary seal lip, the thickness of primary seal lip is 0.8 ~ 1.5mm, the thickness of secondary seal lip is 80% of primary seal lip thickness.
Described universal coupling with spider universal joint improved seal, the pretension amount of the primary seal lip of its seal body, secondary seal lip and bearing housing is 0.5 ~ 1.0mm.
Described universal coupling with spider universal joint improved seal, its seal body is made up of urethane rubber.
Owing to adopting technological scheme as above, the present invention has following superiority:
This universal coupling with spider universal joint improved seal, its structure is simple, novelty reasonable in design, not containing skeleton, low cost of manufacture, easy to assembly, by in seal body arranged outside primary seal lip, secondary seal lip, make lubricating grease in the needle bearing of universal joint be attached to seal lip position at universal joint rotation process by centrifugal force, realize sealed lip sufficient lubrication, reduce friction, reduce wear, extend seal durability, significantly reduce lubricating grease consumption, improve bearing service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of universal coupling with spider universal joint improved seal of the present invention;
Fig. 2 is the A portion structure for amplifying schematic diagram of Fig. 1;
Fig. 3 is the structural representation of the universal coupling with spider universal joint of the improved seal being equipped with Fig. 1;
In figure: 1-seal body; 2-primary seal lip; 3-U shape cavity; The secondary seal lip of 4-; 5-bearing housing; 6-needle roller; 7-cross axle.
Embodiment
Below by drawings and Examples, technological scheme of the present invention is described in further detail.
As Fig. 1, shown in 2, this universal coupling with spider universal joint improved seal, it comprises seal body 1, the primary seal lip 2 that opposing seal body tilts is extended with outside seal body, secondary seal lip 4, two seal lips all tilt towards direction, seal body left side, secondary seal lip is positioned at the marginal position of seal body, the angle [alpha] that primary seal lip and seal body axially have is 40 ° ~ 50 °, the angle beta that secondary seal lip and seal body axially have is 25 ° ~ 30 °, U-shaped cavity 3 is formed between primary seal lip and secondary seal lip, for filling up lubricating grease, the thickness of primary seal lip is 0.8 ~ 1.5mm, the thickness of secondary seal lip is 80% of primary seal lip thickness.
Above-mentioned universal coupling with spider universal joint improved seal, its seal body is made up of urethane rubber, has very high mechanical strength, has good elasticity simultaneously, oil resistance and wear resistance, in water resistance, comparatively conventional seals improves a lot especially.
As shown in Figure 3, primary seal lip 2, secondary seal lip 4 all tilt towards the direction of bearing housing 5 opening end end, and namely two seal lip tilts towards the axle journal root direction of cross axle 7, and primary seal lip is near cage openings end end.
Above-mentioned universal coupling with spider universal joint improved seal, the primary seal lip 2 of its seal body, secondary seal lip 4 and the pretension amount a of bearing housing 5 are the aperture that R in 0.5 ~ 1.0mm, Fig. 2 refers to bearing housing.
The loading of Sealing is convenient in the setting at primary seal lip, secondary seal lip angle of inclination, and primary seal lip is thicker than the secondary seal lip of mouth, and intensity is large, and pretightening force is large, plays primary seal effect; Secondary seal lip thinner thickness, flexible, intensity is little, and pretightening force is little, and surface friction drag is little, and in the U-shaped cavity between primary seal lip and secondary seal lip, lubricating grease plays auxiliary seal effect under supporting; Primary seal lip, secondary seal lip mainly prevent outside water, iron rust, greasy dirt and other impurity from entering needle bearing inside, the inner lubricating grease after certain hour uses of needle bearing simultaneously, containing certain abrasion of particles thing or impurity, can be leaked discharge by major and minor seal lip place with lubricating grease under fill cup hydraulic.
Claims (3)
1. a universal coupling with spider universal joint improved seal, it is characterized in that: it comprises seal body, the primary seal lip that seal body arranged outside has opposing seal body to tilt, secondary seal lip, two seal lips all tilt towards the direction of cage openings end end, primary seal lip is near cage openings end end, secondary seal lip is positioned at the marginal position of seal body, primary seal lip and seal body are axially in the angle of 40 ° ~ 50 °, secondary seal lip and seal body are axially in the angle of 25 ° ~ 30 °, U-shaped cavity is formed between primary seal lip and secondary seal lip, the thickness of primary seal lip is 0.8 ~ 1.5mm, the thickness of secondary seal lip is 80% of primary seal lip thickness.
2. universal coupling with spider universal joint improved seal according to claim 1, is characterized in that: the pretension amount of the primary seal lip of its seal body, secondary seal lip and bearing housing is 0.5 ~ 1.0mm.
3. universal coupling with spider universal joint improved seal according to claim 1, is characterized in that: its seal body is made up of urethane rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410517849.6A CN104315148A (en) | 2014-09-30 | 2014-09-30 | Improved sealing element for universal joint of cross axle type universal shaft coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410517849.6A CN104315148A (en) | 2014-09-30 | 2014-09-30 | Improved sealing element for universal joint of cross axle type universal shaft coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104315148A true CN104315148A (en) | 2015-01-28 |
Family
ID=52370425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410517849.6A Pending CN104315148A (en) | 2014-09-30 | 2014-09-30 | Improved sealing element for universal joint of cross axle type universal shaft coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104315148A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286841A (en) * | 2016-11-21 | 2017-01-04 | 珠海格力电器股份有限公司 | A kind of rotating shaft sealing structure and rotating shaft sealing sealing ring |
| CN107061528A (en) * | 2017-03-23 | 2017-08-18 | 青岛科技大学 | The Non-centering CV joint that simply connected vibration shock isolation is hit |
| CN108422988A (en) * | 2018-03-08 | 2018-08-21 | 浙江工贸职业技术学院 | A kind of two-cylinder type braking Fu Gang mechanisms |
-
2014
- 2014-09-30 CN CN201410517849.6A patent/CN104315148A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286841A (en) * | 2016-11-21 | 2017-01-04 | 珠海格力电器股份有限公司 | A kind of rotating shaft sealing structure and rotating shaft sealing sealing ring |
| CN107061528A (en) * | 2017-03-23 | 2017-08-18 | 青岛科技大学 | The Non-centering CV joint that simply connected vibration shock isolation is hit |
| CN107061528B (en) * | 2017-03-23 | 2023-10-10 | 青岛科技大学 | Single-connection vibration-damping impact-resistant non-centering constant-angular-speed universal joint |
| CN108422988A (en) * | 2018-03-08 | 2018-08-21 | 浙江工贸职业技术学院 | A kind of two-cylinder type braking Fu Gang mechanisms |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150128 |
|
| WD01 | Invention patent application deemed withdrawn after publication |