CN100400905C - Pin shaft device with seal structure - Google Patents
Pin shaft device with seal structure Download PDFInfo
- Publication number
- CN100400905C CN100400905C CNB2006100040470A CN200610004047A CN100400905C CN 100400905 C CN100400905 C CN 100400905C CN B2006100040470 A CNB2006100040470 A CN B2006100040470A CN 200610004047 A CN200610004047 A CN 200610004047A CN 100400905 C CN100400905 C CN 100400905C
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- Prior art keywords
- pin shaft
- oil
- axis body
- shaft device
- displaced
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Abstract
The present invention relates to a pin shaft device with a seal structure, particularly to a pin shaft device with a seal structure. The existing pin shaft devices lack reliable seal structures, which can result in consistent grease leakage and entry of outside impurity to influence use effect. The present invention has the scheme that an oil outlet channel and a unidirectional oil outlet valve are adopted, and the central lines of the oil outlet channel and an oil inlet channel in the outlet position on the surface of a shaft body are not in the same axial line on the surface of the shaft body, and thus, the consistent grease passes by staggered oil tanks and can flow out of the oil outlet channel, and oil storing efficiency is enhanced. Simultaneously, the unidirectional oil outlet valve prevents the abnormal leakage of the consistent grease and the entry of the outside impurity. The present invention is mainly applied to various occasions needing to use the pin shaft devices, such as engineering machinery, marine vehicles, motor vehicles, mechanical equipment, etc.
Description
Technical field
The present invention relates to a kind of pin shaft device, particularly a kind of pin shaft device with sealing configuration.
Background technique
General pin shaft device mainly comprises axis body and two parts of axle sleeve, and it is widely used in the middle of the various machinery that need hinging structure.Present employed pin shaft device, owing to there is not reliable sealing configuration, the lubricating grease that is used for lubricated bearing pin can in use overflow gradually, has reduced lubrication effect; Simultaneously, extraneous foreign matter also can enter into the inside of pin shaft device, has quickened the wearing and tearing between axle and the cover.Though the structure that has has increased seal ring at the two ends of axle sleeve, played certain sealing effect, this design can cause the inner enclosed space that forms of pin shaft device, and lubricating grease is mobile when having influenced filling, has also influenced lubrication effect.
Summary of the invention
The object of the present invention is to provide a kind of pin shaft device that has sealing configuration, use it can increase the lubrication effect of pin shaft device, reduce the frequency of maintaining.Embodiment of the present invention are as follows: a kind of pin shaft device with sealing configuration, comprise in line check valve, oil input channel, axis body, axle sleeve, oil road, fuel-displaced one-way valve, oil storage tank, seal ring, one end of axis body is provided with in line check valve, and communicates with the outer surface of axis body by oil input channel; The other end of axis body is provided with fuel-displaced one-way valve, and it communicates with the outer surface of axis body by oil road; Fuel-displaced one-way valve is opposite with the in line check valve installation direction; Oil road and oil input channel are at the lip-deep exit position of axis body center line not on same the axial line on the axis body surface; Seal ring is installed in the two ends of axle sleeve, and axle sleeve is provided with oil storage tank.As shown in Figure 1.
During grease up, lubricating grease enters in the oil storage tank of axle sleeve through in line check valve, oil input channel.Because in line check valve is unidirectional by effect, and lubricating grease can not be flowed out from line check valve; The lubricating grease that enters in the axle sleeve continues to flow along oil storage tank, until flowing out through oil road, fuel-displaced one-way valve, finishes filling process.Because oil road and oil input channel be at the lip-deep exit position of axis body center line not on same the axial line on the axis body surface, so lubricating grease could flow out from oil road after must walking around the oil storage tank that staggers mutually, improved store oil efficient.The effect of fuel-displaced one-way valve is that stop on the one hand lubricating grease improper leaked and prevented and entering of extraneous foreign matter from simultaneously also to the mobile generation resistance of lubricating grease, forming certain back pressure, makes lubricating grease can more fill oil storage tank.The two ends of axle sleeve are provided with seal ring, play to stop lubricating grease to leak and prevent that extraneous foreign matter from entering the purpose in the axle sleeve.
This invention is simple in structure, with low cost, has fundamentally solved lubricated, the sealing of pin shaft device and the contradiction between the cost, and the workload of greatly reduce maintenances, maintaining has bigger promotional value.
Description of drawings
Fig. 1 is the schematic diagram of embodiment of the present invention
Fig. 2 is the structural representation of an embodiment of the present invention
Fig. 3 is the another kind of embodiment's of the present invention a structural representation
Fig. 4 is the structural representation of a kind of fuel-displaced one-way valve of the present invention
Fig. 5 is the structural representation of a kind of fuel-displaced one-way valve opening state of the present invention
Among the figure: 1, in line check valve 2, axis body 3, oil input channel 4, axle sleeve 5, oil road 6, fuel-displaced one-way valve 7, seal ring 8, oil storage tank 9, leather cup 10, spring 11, valve body
Embodiment
A preferred embodiment of the present invention has adopted structure as shown in Figure 2.One end of axis body 2 is provided with in line check valve 1, and in line check valve 1 communicates by the outer surface of oil input channel 3 with axis body 2; The other end of axis body 2 is provided with fuel-displaced one-way valve 6, and structure is the steel ball and spring formula.Fuel-displaced one-way valve 6 communicates by the outer surface of oil road 5 with axis body 2; Fuel-displaced one-way valve 6 is opposite with in line check valve 1 installation direction; Oil road 5 and oil input channel 3 are opposite in axis body 2 lip-deep exit position directions, are preferably 180 °; Seal ring 7 is installed in the two ends of axle sleeve 4, and axle sleeve 4 is provided with oil storage tank 8.
During grease up, lubricating grease enters in the oil storage tank 8 of axle sleeve 4 through in line check valve 1, oil input channel 3.Because in line check valve 1 is unidirectional by effect, and lubricating grease can not be flowed out from line check valve 1; The lubricating grease that enters in the axle sleeve 4 continues to flow along oil storage tank 8, continues to flow along oil storage tank 8 until flowing to through oil road 5, fuel-displaced one-way valve 6 into the lubricating grease in the axle sleeve 4, until flowing out through oil road 5, fuel-displaced one-way valve 6, finishes filling process.Because oil road 5 is opposite at axis body 2 lip-deep exit position centerline directions with oil input channel 3, so lubricating grease could flow out from oil road 5 after must walking around the oil storage tank 8 that staggers mutually, improve store oil efficient.The effect of fuel-displaced one-way valve 6 is that stop on the one hand lubricating grease improper leaked and prevented entering of extraneous foreign matter, simultaneously also to the mobile formation resistance of lubricating grease, produce certain back pressure, make lubricating grease in flow process, can more fill space in the oil storage tank 8.The two ends of axle sleeve 4 are provided with seal ring 7, play to stop leaking and preventing that extraneous foreign matter from entering the purpose in the axle sleeve 4 of lubricating grease.
Fig. 3 is the another kind of embodiment's of the present invention a structural representation.This scheme has adopted oil input channel 3 and the oil road 5 that radially connects along axis body 2, and 0-180 ° of angle arranged between their axis, is preferably 90 °.Owing to increased passage into and out of oil, accelerated the flowing velocity of lubricating grease, also reduced the flow resistance of lubricating grease, using effect is better when the viscosity of lubricating grease is hanged down than big or temperature.
In the 3rd embodiment, adopted the fuel-displaced one-way valve 6 of another kind of structure, as Fig. 4, shown in Figure 5.Fuel-displaced one-way valve 6 is made up of leather cup 9, spring 10, valve body 11.During filling, owing to the effect of lubricating grease is backed down leather cup 9 and forced it to move backward, until the draining hole that gets out of the way on the valve body 11, this moment, lubricating grease just flowed out from the draining hole.After stopping filling, leather cup 9 moves forward under the effect of spring 10, and the lubricating grease that promotes to be stored in the valve body 11 flows, thereby makes the lubricating grease in the seal space continue to fill, and makes its increased pressure, has improved lubricated effect.I figure is the partial enlarged drawing of fuel-displaced one-way valve 6.
Claims (6)
1. pin shaft device with sealing configuration, comprise axis body, axle sleeve, axis body one end is provided with in line check valve and oil input channel, and seal ring is equipped with at the two ends of axle sleeve, axle sleeve is provided with oil storage tank, it is characterized in that: the other end of axis body is provided with fuel-displaced one-way valve and at least one oil road; At least one oil road one end communicates with fuel-displaced one-way valve, and the other end communicates with the axis body outer surface.
2. a kind of pin shaft device with sealing configuration according to claim 1 is characterized in that: oil road and oil input channel are at the lip-deep exit position of axis body center line not on same the axial line on the axis body surface;
3. a kind of pin shaft device with sealing configuration according to claim 1 is characterized in that: oil road is parallel opposite in the lip-deep exit position of axis body direction with oil input channel;
4. a kind of pin shaft device according to claim 1 with sealing configuration, it is characterized in that: oil road and oil input channel radially connect along axis body respectively;
5. a kind of pin shaft device with sealing configuration according to claim 1 is characterized in that: fuel-displaced one-way valve adopts steel ball and spring formula structure;
6. a kind of pin shaft device with sealing configuration according to claim 1 is characterized in that: leather cup and spring are housed in the valve body of fuel-displaced one-way valve, have drain tap on valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100040470A CN100400905C (en) | 2006-01-25 | 2006-01-25 | Pin shaft device with seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100040470A CN100400905C (en) | 2006-01-25 | 2006-01-25 | Pin shaft device with seal structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1821594A CN1821594A (en) | 2006-08-23 |
| CN100400905C true CN100400905C (en) | 2008-07-09 |
Family
ID=36923120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100040470A Expired - Fee Related CN100400905C (en) | 2006-01-25 | 2006-01-25 | Pin shaft device with seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100400905C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518646B (en) * | 2011-12-22 | 2013-06-05 | 中联重科股份有限公司 | Mounting structure of pin shaft, jib structure of engineering machinery and concrete pumping device |
| CN102913544A (en) * | 2012-10-23 | 2013-02-06 | 湖北汽车工业学院 | Static-pressure bearing hinge pair with low rotation speed |
| CN112343915A (en) * | 2020-11-05 | 2021-02-09 | 中国航发沈阳发动机研究所 | Pin shaft connecting structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3951234A (en) * | 1974-02-05 | 1976-04-20 | Associated Mines (Malaya) Sendirian Berhad | Pin bearings |
| CN2071625U (en) * | 1990-05-21 | 1991-02-20 | 唐冬云 | Self-inflating life-saving case in water |
| CN2311653Y (en) * | 1997-08-11 | 1999-03-24 | 乐清市联轴器厂 | Universal joint pin coupling with oil-storing chamber itself |
| US6042295A (en) * | 1998-07-06 | 2000-03-28 | Caterpillar Inc. | Rotating bushing for a pin assembly |
| WO2000022309A1 (en) * | 1998-10-09 | 2000-04-20 | Hitachi Construction Machinery Co., Ltd. | Bearing device |
-
2006
- 2006-01-25 CN CNB2006100040470A patent/CN100400905C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3951234A (en) * | 1974-02-05 | 1976-04-20 | Associated Mines (Malaya) Sendirian Berhad | Pin bearings |
| CN2071625U (en) * | 1990-05-21 | 1991-02-20 | 唐冬云 | Self-inflating life-saving case in water |
| CN2311653Y (en) * | 1997-08-11 | 1999-03-24 | 乐清市联轴器厂 | Universal joint pin coupling with oil-storing chamber itself |
| US6042295A (en) * | 1998-07-06 | 2000-03-28 | Caterpillar Inc. | Rotating bushing for a pin assembly |
| WO2000022309A1 (en) * | 1998-10-09 | 2000-04-20 | Hitachi Construction Machinery Co., Ltd. | Bearing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1821594A (en) | 2006-08-23 |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Henan Liming Heavy Industry Technology Co., Ltd. Assignor: Zhao Dali Contract record no.: 2012410000058 Denomination of invention: Pin shaft device with seal structure Granted publication date: 20080709 License type: Exclusive License Open date: 20060823 Record date: 20120626 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080709 Termination date: 20180125 |