CN203868024U - Sealing bearing structure for cab flip oil cylinder - Google Patents
Sealing bearing structure for cab flip oil cylinder Download PDFInfo
- Publication number
- CN203868024U CN203868024U CN201420227588.XU CN201420227588U CN203868024U CN 203868024 U CN203868024 U CN 203868024U CN 201420227588 U CN201420227588 U CN 201420227588U CN 203868024 U CN203868024 U CN 203868024U
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- CN
- China
- Prior art keywords
- ring
- oil
- oil cylinder
- sealing
- cab
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 28
- 230000007306 turnover Effects 0.000 claims description 17
- 239000004809 Teflon Substances 0.000 claims description 6
- 229920006362 Teflon® Polymers 0.000 claims description 6
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims 1
- 239000003921 oil Substances 0.000 abstract description 66
- 230000000694 effects Effects 0.000 abstract description 5
- 239000010720 hydraulic oil Substances 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract 2
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 13
- 239000002131 composite material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000003068 static effect Effects 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 241001347978 Major minor Species 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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- Actuator (AREA)
Abstract
A sealing bearing structure for a cab flip oil cylinder comprises a bushing body (4); an O-shaped sealing ring (7) and a check ring (6) are arranged on the circumferential external wall of the bushing body (4); the internal wall of the bushing body (4) is provided with a Y-shaped ring (8) and a sealing assembly (5). The sealing bearing structure for the cab flip oil cylinder is characterized in that the sealing assembly (5) comprises a bearing ring (51) and an O-shaped ring (52); the bearing ring (51) is arranged inside an installation groove of the internal wall of the bushing body (4); the internal wall of the installation groove is provided with a compensation groove; the O-shaped ring (52) is arranged inside the compensation groove; the Y-shaped ring (8) is provided with a double-lip structure which is provided with a main lip (81) and an auxiliary lip (82). The sealing bearing structure for the cab flip oil cylinder has the advantages of being good in multiple sealing oil control effect and residual oil pump-back ability under a dynamic condition, well avoiding oil permeation, oil leakage and early failure of the cab flip oil cylinder, improving the product service life and reducing hydraulic oil escape wasting and environmental pollution.
Description
Technical field
The utility model relates to a kind of vapour vehicle accessory, relates to the mechanism of a kind of automobile cab turnover and falling, especially the sealing supporting structure of automobile cab turnover oil cylinder.
Background technique
Along with making rapid progress of truck market, the structural type of operator cabin is also day by day various, particularly the large operator cabin of operator cabin weight, has more adopted hydraulic turnover mechanism to improve the Security of maintenance and the assurance maintenance process of automobile, debuging of automobile is overhauled faster.As shown in Figure 1, for being driver's cab turnover cylinder structure schematic diagram, comprise overturning oil cylinder assembly 1, sealing supporting structure 2 and piston rod 3, between the seal support device of oil cylinder and cylinder barrel 11 inwalls, form static seal, form motive sealing with piston rod 3, it forms respectively upper hydraulic fluid port A and system inner chamber B up and down.But the oil leak problem that hydraulic system is difficult to avoid always difficulty each user and oil cylinder MANUFACTURER, and the upper hydraulic fluid port A position that oil leak problem focuses mostly at oil cylinder.On current operator cabin hydraulic overturn oil cylinder, the sealing system of hydraulic fluid port A as shown in Figure 2, in conjunction with Fig. 1, by bush body 4, single lip y-type seal ring 10, common guide ring 9, O RunddichtringO 7 and back-up ring 6 form, wherein O RunddichtringO 7 is contained in bush body 4 outsides and inner wall of cylinder formation static seal with back-up ring 6, single lip y-type seal ring 10 is contained in bush body 4 inner side slots and piston rod 3 forms single track motive sealing, guide ring 9 is also contained in bush body 4 inner side slots, play supporting piston bar, this structure still can realize good sealing under high-pressure situations, but under low pressure current intelligence, because control does not live oil slick thickness and Residual oil pumpback ability, be easy to accumulate in place, hydraulic fluid port A chamber, the phenomenon that causes oil impregnate and leakage of oil.According to incompletely statistics, within nearly 3 years, domestic operator cabin hydraulic overturn oil cylinder accounts for 80% left and right of all oil cylinder operational failure faults because upper hydraulic fluid port oil leak finally causes the fault of oil cylinder operational failure, this not only affects user's normal use, also there is certain potential safety hazard, also cause the waste that leaks of hydraulic oil, also indirectly caused the pollution of environment simultaneously.
Model utility content
The utility model object is to overcome the deficiency that above-mentioned driver's cab turnover oil cylinder exists upper hydraulic fluid port leakage of oil oil impregnate, and a kind of sealing supporting structure of driver's cab turnover oil cylinder is provided, and this structure is for upper hydraulic fluid port position, and oil-control ability is strong, good seal performance, and long service life.
The technological scheme that the technical problem that the utility model solves adopts is:
From controlling oil and oil return, set about, a kind of sealing supporting structure of driver's cab turnover oil cylinder is provided, comprise bush body 4, the outer circumferential walls of bush body 4 is provided with O RunddichtringO 7 and back-up ring 6, the inwall of bush body 4 is provided with Y-shaped ring 8 and black box 5, it is characterized in that black box 5 comprises supporting ring 51 and O type circle 52, supporting ring 51 is located in the mounting groove of bush body 4 inwalls, the inwall of mounting groove is also provided with compensating tank, in compensating tank, be provided with above-mentioned O type circle 52, Y-shaped ring 8 has lips structure, is provided with main lip 81 and secondary lip 82.O type circle 52 is contained in the inner side in the back side of supporting ring, and O type circle 52 and supporting ring form good sealing compensation structure, because the elasticity of O type circle 52 can compensate the wearing and tearing of supporting ring, can realize well the supporting of piston rod 3 and leading role.The top of same Y-shaped ring 8 is provided with secondary lip 82, avoids causing Y-shaped ring 8 eccentric wears after long-term work wearing and tearing and causes early failue.
During concrete enforcement, supporting ring 51 top inner rings are provided with oil return chamfering 53.During assembling, oil return chamfering is towards upper hydraulic fluid port.
During concrete enforcement, supporting ring 51 is teflon and molybdenum disulfide composite support carrier ring.Supporting ring 51, by having selflubricating and having the teflon of fine deformation limit and molybdenum disulfide composite material to make, is designed with oil return chamfering 53 simultaneously.During use, the black box 5 that Y-shaped ring 8 and supporting ring 51 and O type circle 52 form is contained in the interior ring recess of bush body 4 piston rod 3 is played to good motive sealing and supporting role, back-up ring 6 and O RunddichtringO 7 are contained in the outer ring recess of bush body 4, and form static seal between cylinder barrel 11 inwalls.Y-shaped ring is major-minor lips structures, incidental oil slick thickness when control piston bar 3 is up effectively, supporting ring 51 is by having self-lubricating function and having the teflon of fine deformation limit and molybdenum disulfide composite material to make, be designed with oil return chamfering simultaneously, O type circle 52 is contained in the inner side in the back side of supporting ring, form black box 5 structures, can realize well the supporting of piston rod 3 and leading role, after avoiding long-term work to wear and tear, cause Y-shaped ring 8 eccentric wears and cause early failue, under low pressure dynamic condition, there is very strong control oil and Residual oil pumpback ability simultaneously, thereby the leakage of oil oil impregnate phenomenon of having avoided Residual oil to occur after upper hydraulic fluid port gathers, oil impregnate and the oil leakage phenomenon of driver's cab turnover oil cylinder have been avoided, improved the working life of product, waste and the pollution to environment of hydraulic oil have also been reduced.
The beneficial effects of the utility model are: the utlity model has the good oily effect of multi-sealed control and the Residual oil pumpback ability under dynamic condition, oil impregnate, leakage of oil and the early failure phenomena of driver's cab turnover oil cylinder have been avoided better, improve the working life of product, also reduced leak waste and the pollution to environment of hydraulic oil.
Embodiment
In Fig. 3 and Fig. 4, in conjunction with Fig. 1, a kind of sealing supporting structure of driver's cab turnover oil cylinder, comprises bush body 4, and back-up ring 6 and O RunddichtringO 7 are contained in the outer ring recess of bush body 4, and form static seal between cylinder barrel 11 inwalls.The inwall of bush body 4 is provided with Y-shaped ring 8 and black box 5, black box 5 comprises supporting ring 51 and O type circle 52, supporting ring 51 is by having selflubricating and having the teflon of fine deformation limit and molybdenum disulfide composite material to make, be designed with oil return chamfering 53 simultaneously, supporting ring 51 is located in the mounting groove of bush body 4 inwalls, and the inwall of mounting groove is provided with compensating tank, is provided with above-mentioned O type circle 52 in compensating tank, Y-shaped ring 8 has lips structure, is provided with main lip 81 and secondary lip 82.8 pairs of piston rods 3 of black box 5 and Y-shaped ring play good motive sealing and supporting role.
The major-minor lips structure of the utility model main lip 81 and secondary lip 82 because Y-shaped ring 8 has adopted, piston rod has been carried out to double seal, effectively control the oil slick thickness of taking out of in the up process of piston rod 3, aspect control leakage of oil oil impregnate, played the first crucial pass; The black box 5 adopting, because O type circle 52 is arranged on the inner side in supporting ring 51 back sides, supporting ring 51 1 sides are had to elastic compensating and hold effect tightly, further play the effect of controlling oil film, and supporting ring 51 is by having self-lubricating function and having the teflon of fine deformation limit and molybdenum disulfide composite material to make, effectively avoid because long-term work supporting 51 ring wearing and tearing cause piston rod 3 eccentric wear Y-shaped rings 8, thereby further avoid the early failure phenomena that causes; On supporting ring 51, be designed with oil return chamfering 53 in addition, hydraulic fluid port A installs upward, when the dynamic duty of oil cylinder low pressure, has good Residual oil pumpback ability, has further avoided fluid to accumulate in hydraulic fluid port A position and has caused oil leak phenomenon.In a word, the sealing supporting structure of the driver's cab turnover oil cylinder that this model utility is related has the good oily effect of multi-sealed control and the Residual oil pumpback ability under low pressure dynamic condition, oil impregnate, leakage of oil and the early failure phenomena of driver's cab turnover oil cylinder have been avoided well, improve the working life of product, also reduced leak waste and the pollution to environment of hydraulic oil.
Finally, it should be pointed out that above embodiment is only the more representational example of the utility model.Obviously, the utility model is not limited to above-described embodiment, can also have many distortion.Any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all should think and belong to protection domain of the present utility model.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, model utility is further illustrated.
Fig. 1 is driver's cab turnover cylinder structure schematic diagram.
Fig. 2 is the sealing supporting structure schematic diagram of prior art.
Fig. 3 is the utility model embodiment's sealing supporting structure schematic diagram.
Fig. 4 is the C place structure for amplifying schematic diagram of the utility model embodiment Fig. 3.
In figure: 1, overturning oil cylinder assembly 2, sealing supporting structure 3, piston rod 4, bush body 5, black box 6, back-up ring 7, O RunddichtringO 8, Y-shaped ring 9, supporting ring 10, single lip y-type seal ring 11, cylinder barrel 51, supporting ring 52, O type circle 53, oil return chamfering 81, main lip 82, secondary lip A, upper hydraulic fluid port B, system inner chamber.
Claims (3)
1. the sealing supporting structure of a driver's cab turnover oil cylinder, comprise bush body (4), the outer circumferential walls of bush body (4) is provided with O RunddichtringO (7) and back-up ring (6), the inwall of bush body (4) is provided with Y-shaped ring (8) and black box (5), it is characterized in that black box (5) comprises supporting ring (51) and O type circle (52), supporting ring (51) is located in the mounting groove of bush body (4) inwall, the inwall of mounting groove is provided with compensating tank, in compensating tank, be provided with above-mentioned O type circle (52), Y-shaped ring (8) has lips structure, be provided with main lip (81) and secondary lip (82).
2. the sealing supporting structure of a kind of driver's cab turnover oil cylinder according to claim 1, is characterized in that supporting ring (51) top inner ring is provided with oil return chamfering (53).
3. the sealing supporting structure of a kind of driver's cab turnover oil cylinder according to claim 1 and 2, its feature supporting ring (51) is teflon and the compound supporting ring of molybdenum disulfide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420227588.XU CN203868024U (en) | 2014-05-06 | 2014-05-06 | Sealing bearing structure for cab flip oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420227588.XU CN203868024U (en) | 2014-05-06 | 2014-05-06 | Sealing bearing structure for cab flip oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203868024U true CN203868024U (en) | 2014-10-08 |
Family
ID=51648983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420227588.XU Expired - Lifetime CN203868024U (en) | 2014-05-06 | 2014-05-06 | Sealing bearing structure for cab flip oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203868024U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654249A (en) * | 2017-11-14 | 2018-02-02 | 淮南久辉工贸有限责任公司 | A kind of novel anchor rod, anchor cable combined type stop grouting plug |
-
2014
- 2014-05-06 CN CN201420227588.XU patent/CN203868024U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654249A (en) * | 2017-11-14 | 2018-02-02 | 淮南久辉工贸有限责任公司 | A kind of novel anchor rod, anchor cable combined type stop grouting plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141008 |