CN204127032U - Oil hydraulic cylinder oil-leakage-prevention end cap - Google Patents
Oil hydraulic cylinder oil-leakage-prevention end cap Download PDFInfo
- Publication number
- CN204127032U CN204127032U CN201420453455.4U CN201420453455U CN204127032U CN 204127032 U CN204127032 U CN 204127032U CN 201420453455 U CN201420453455 U CN 201420453455U CN 204127032 U CN204127032 U CN 204127032U
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- Prior art keywords
- oil
- end cap
- hydraulic cylinder
- leakage
- trap
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- 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
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- 239000000428 dust Substances 0.000 claims description 16
- 239000000446 fuel Substances 0.000 claims description 12
- 239000012530 fluid Substances 0.000 abstract description 19
- 239000007788 liquid Substances 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 2
- 101100204059 Caenorhabditis elegans trap-2 gene Proteins 0.000 description 37
- 238000000034 method Methods 0.000 description 8
- 238000007789 sealing Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to a kind of oil hydraulic cylinder oil-leakage-prevention end cap, there is the through hole running through described end cap, end cap has oil trap, described oil trap is formed on the internal face of described through hole, the bearing of trend of described oil trap and the axial direction of described through hole have angle, and described angle is greater than 0 degree and is less than 180 degree.In use, oil hydraulic cylinder generation oil liquid leakage, especially after seal ring place is damaged, fluid can not spill into oil hydraulic cylinder outside, but flows into oil trap, and oil hydraulic cylinder can work on, find the suitable time again to carry out maintenance seal ring and change, improve working efficiency.
Description
Technical field
The utility model relates to hydraulic equipment, particularly relates to a kind of oil hydraulic cylinder oil-leakage-prevention end cap.
Background technique
Oil hydraulic cylinder all can produce the situation of oil liquid leakage after running a period of time, and befouling environment and product test specimen, in prior art, oil hydraulic cylinder is undertaken by seal ring sealing the leakage preventing fluid, due to the aging of seal ring and wearing and tearing, once be damaged, fluid will leak, and then impact is produced.Therefore, often will change seal ring, to play the object taken preventive measures, but this causes again cost waste.
Model utility content
Provide hereinafter about brief overview of the present utility model, to provide about the basic comprehension in some of the present utility model.Should be appreciated that this general introduction is not summarize about exhaustive of the present utility model.It is not that intention determines key of the present utility model or pith, neither intended limitation scope of the present utility model.Its object is only provide some concept in simplified form, in this, as the preorder in greater detail discussed after a while.
The utility model provides a kind of oil hydraulic cylinder oil-leakage-prevention end cap, there is the through hole running through described end cap, end cap has oil trap, described oil trap is formed on the internal face of described through hole, the bearing of trend of described oil trap and the axial direction of described through hole have angle, and described angle is greater than 0 degree and is less than 180 degree.
At least one beneficial effect of the present utility model is: in use, oil hydraulic cylinder generation oil liquid leakage, especially after seal ring place is damaged, fluid can not spill into oil hydraulic cylinder outside, but inflow oil trap, oil hydraulic cylinder can work on, then finds the suitable time and carry out maintenance seal ring and change, and improves working efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the sectional view that the utility model oil hydraulic cylinder oil-leakage-prevention end cap is installed on oil hydraulic cylinder;
Fig. 2 is the partial sectional view that the utility model oil hydraulic cylinder oil-leakage-prevention end cap is installed on oil hydraulic cylinder;
Fig. 3 is the enlarged partial sectional view (upper half part) of the utility model oil hydraulic cylinder oil-leakage-prevention end cap.
Reference character:
1-oil hydraulic cylinder oil-leakage-prevention end cap (end cap); 2-oil trap; 21-fuel outlet; 22-valve; 3-seal ring; 4-dust ring; 5-piston rod.
Embodiment
For making the object of the utility model embodiment, technological scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.The element described in an accompanying drawing of the present utility model or a kind of mode of execution and feature can combine with the element shown in one or more other accompanying drawing or mode of execution and feature.It should be noted that for purposes of clarity, accompanying drawing and eliminate expression and the description of parts that have nothing to do with the utility model, known to persons of ordinary skill in the art and process in illustrating.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not paying creative work, belongs to the scope of the utility model protection.
In the following embodiment of the utility model, the sequence number of embodiment and/or sequencing are only convenient to describe, and do not represent the quality of embodiment.The description of each embodiment is all emphasized particularly on different fields, in certain embodiment, there is no the part described in detail, can see the associated description of other embodiments.
A kind of oil hydraulic cylinder oil-leakage-prevention end cap, has the through hole running through described end cap, it is characterized in that,
End cap has oil trap, and described oil trap is formed on the internal face of described through hole, and the bearing of trend of described oil trap and the axial direction of described through hole have angle, and described angle is greater than 0 degree and is less than 180 degree.
The utility model relates to a kind of oil hydraulic cylinder oil-leakage-prevention end cap 1 (for convenience of description, below can referred to as end cap 1), see Fig. 1 and Fig. 2, this end cap 1 has the through hole running through end cap, end cap also has oil trap 2, and this oil trap 2 is formed in the internal face of through hole, and the bearing of trend of this oil trap 2, have angle with the axial direction of through hole, this angle is greater than 0 degree and is less than 180 degree.Be appreciated that, when being applied in oil hydraulic cylinder, this end cap 1 can be set in outside piston rod 5, the through hole of end cap 1 is coaxial with piston rod 5, also be just appreciated that, the axial direction of through hole is exactly the setting direction of piston rod 5, and the concrete assembling mode of end cap 1 and piston rod 5 is known well for those skilled in the art, does not repeat them here.Easily know, if oil hydraulic cylinder generation oil liquid leakage, fluid can between end cap 1 and piston rod 5, flow out along piston rod 5 setting direction, this is just appreciated that the angle that arranges of above-mentioned oil trap 2 is to tackle fluid, makes it can not flow out along the direction of piston rod 5.If this angle is zero degree or 180 degree, this oil trap 2 is exactly arrange along piston rod bearing of trend, if oil liquid leakage, just easilier to flow out between end cap 1 and piston rod.
In the optional mode of execution of one, oil trap 2, around the axle center of end cap 1, forms the annular closed.Or in one embodiment, this oil trap 2 can also be the spirality formed around the axle center of end cap 1.These two kinds of forms of oil trap 2 are optional, its objective is the fluid more can collecting leakage, and spiral groove also increase in the capacity of oil trap 2, can collect and more leak fluid.Certainly, these two kinds of forms are also optional mode of execution, alternate manner, and the ring that such as many group parallel concentric are arranged also may be used for the utility model.
See 2, in the optional mode of execution of one, be also provided with seal ring 3 and dust ring 4 in the through hole of end cap 1, oil collecting ring is between seal ring 3 and dust ring 4.Need be appreciated that the seal ring 3 arranged in the end cap 1 of oil hydraulic cylinder can be y-type seal ring 3; Further, seal ring 3 and dust ring 4 are generally all intervally installed, and seal ring 3 is near inner side, dust ring 4 is near outside, and the inner side and outer side herein mentioned is opposing hydraulic cylinder cylinder body, the side of close cylinder body is inner side, away from side be outside, certainly mention that inner side and outer side is for convenience here, in fact, the mounting point of seal ring 3 and dust ring 4 is come to be rotine positioning for those skilled in the art, can know the two and be arranged on where.Based on the position of seal ring 3 and dust ring 4, and in conjunction with above-mentioned, the possible reason of of oil hydraulic cylinder generation oil liquid leakage is exactly that sealing circle 3 weares and teares, therefore can know, oil trap 2 is arranged between seal ring 3 and dust ring 4, just can prevent the fluid leaked from seal ring 3 from flowing through dust ring 4, flow out outside end cap 1.
In the optional mode of execution of one, end cap 1 also has fuel outlet 21, and this fuel outlet 21 is through to oil trap 2 from the outer wall of end cap 1.Like this, the fluid of leakage is all collected by oil trap 2, is now released by the fluid in oil trap 2 by fuel outlet.
Optionally, this fuel outlet also can the oil cylinder of direct through oil trap 2 and oil hydraulic cylinder, and the fluid of leakage directly can flow back to oil cylinder.Should be appreciated that, this fuel outlet is the fluid in order to discharge in oil trap 2 on the one hand, can also send the fluid in oil trap 2 back to oil cylinder on the other hand.The utility model at least can complete first aspect, namely discharges oil trap 2 inner fluid.Complete second aspect, send oil cylinder back to, just need the set-up mode seeing fuel outlet, if can through oil cylinder and oil trap 2, then can complete the function of the fluid in oil trap 2 being sent back to oil cylinder.
Further need are appreciated that if fuel outlet is arranged to be through to oil trap 2 from the outer wall of end cap 1, can also configure the valve 22 matched with this fuel outlet size, can open valve 22, allow fluid flow out from fuel outlet when needs.Optionally, fast plug can be used.In addition, valve can also be opened be confirmed whether generation oil liquid leakage, judge whether seal ring damages with this.
In the optional mode of execution of one, the trough wall surface of oil trap 2 is circular arc, and optionally, the degree of depth of oil trap 2 is 2-10mm.
In the optional mode of execution of one, in arc round angle between the internal face of oil trap 2 and end cap 1.I.e. oil trap 2 part of joining mutually with the internal face of end cap 1, have the excessive angle of arc, concrete angle is by described below.
Illustrate oil hydraulic cylinder oil-leakage-prevention end cap 1 below, can by reference to the accompanying drawings 3 and (Fig. 3 merely illustrates upper half part of end cap see lower list 1, lower half portion and upper half part symmetry), be the size requirement of oil hydraulic cylinder oil-leakage-prevention end cap 1, work point is four group profiles.These group data are with oil trap 2 for ring, and the situation explanation of oil trap 2 and end cap 1 internal face coaxial (or have also can be understood as when being sheathed on piston rod and being outer, this oil trap 2 is coaxial with piston rod).
Table 1: oil hydraulic cylinder oil-leakage-prevention end cap size requirement
See Fig. 3, in above-mentioned size requirement, D is the internal diameter of this oil hydraulic cylinder oil-leakage-prevention end cap 1, and H is the degree of depth of oil trap 2.Before the implication that R1, R2, L1, L2 are described, needs are known, because the set-up mode of oil trap 2 is coaxial with end cap 1 internal face, as can be seen from figure also, the side, edge of oil trap 2 near seal ring 3, opposite side near dust ring 4, in table 1, L1 is the distance of oil trap 2 near seal ring 3 one lateral extent seal ring 3, and L2 is the distance of oil trap 2 near dust ring 4 one lateral extent dust ring 4.R1 is the radius of oil trap 2 near arc round angle between seal ring 3 side and end cap 1 internal face, and R2 is the radius of oil trap 2 near arc round angle between dust ring 4 side and end cap internal face.As can be seen from data also, R2 is less than R1, be appreciated that fluid mainly from oil trap 2 near seal ring one side inflow oil trap 2, and oil trap 2 need near the side of dust ring stop fluid flow out.
Although last it is noted that described the utility model and advantage thereof in detail above, be to be understood that and can carry out various change when not exceeding the spirit and scope of the present utility model limited by appended claim, substituting and converting.And scope of the present utility model is not limited only to the specific embodiment of process, equipment, means, method and step described by specification.One of ordinary skilled in the art will readily appreciate that from disclosure of the present utility model, can use perform the function substantially identical with corresponding embodiment described herein or obtain and its substantially identical result, existing and that will be developed in the future process, equipment, means, method or step according to the utility model.Therefore, appended claim is intended to comprise such process, equipment, means, method or step in their scope.
Claims (8)
1. an oil hydraulic cylinder oil-leakage-prevention end cap, has the through hole running through described end cap, it is characterized in that,
End cap has oil trap, and described oil trap is formed on the internal face of described through hole, and the bearing of trend of described oil trap and the axial direction of described through hole have angle, and described angle is greater than 0 degree and is less than 180 degree.
2. oil hydraulic cylinder oil-leakage-prevention end cap according to claim 1, is characterized in that,
Described oil trap forms closed annular around the axle center of described end cap.
3. oil hydraulic cylinder oil-leakage-prevention end cap according to claim 1, is characterized in that,
Described oil trap forms spirality around the axle center of described end cap.
4. oil hydraulic cylinder oil-leakage-prevention end cap according to claim 1, is characterized in that,
Also be provided with seal ring and dust ring in the through hole of described end cap, described oil collecting ring is between described seal ring and described dust ring.
5. oil hydraulic cylinder oil-leakage-prevention end cap according to claim 1, is characterized in that,
Described end cap also has fuel outlet, and described fuel outlet is through to described oil trap from the outer wall of described end cap.
6. the oil hydraulic cylinder oil-leakage-prevention end cap according to any one of claim 1-5, is characterized in that,
The trough wall surface of described oil trap is circular arc.
7. the oil hydraulic cylinder oil-leakage-prevention end cap according to any one of claim 1-5, is characterized in that,
In arc round angle between the internal face of described oil trap and described end cap.
8. the oil hydraulic cylinder oil-leakage-prevention end cap according to any one of claim 1-5, is characterized in that,
The degree of depth of described oil trap is 2-10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420453455.4U CN204127032U (en) | 2014-08-12 | 2014-08-12 | Oil hydraulic cylinder oil-leakage-prevention end cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420453455.4U CN204127032U (en) | 2014-08-12 | 2014-08-12 | Oil hydraulic cylinder oil-leakage-prevention end cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204127032U true CN204127032U (en) | 2015-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420453455.4U Expired - Lifetime CN204127032U (en) | 2014-08-12 | 2014-08-12 | Oil hydraulic cylinder oil-leakage-prevention end cap |
Country Status (1)
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| CN (1) | CN204127032U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681613A (en) * | 2018-12-28 | 2019-04-26 | 宁夏天地奔牛实业集团有限公司 | Mine speed reducer bearing (ball) cover and mine speed reducer |
-
2014
- 2014-08-12 CN CN201420453455.4U patent/CN204127032U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681613A (en) * | 2018-12-28 | 2019-04-26 | 宁夏天地奔牛实业集团有限公司 | Mine speed reducer bearing (ball) cover and mine speed reducer |
| CN109681613B (en) * | 2018-12-28 | 2024-01-05 | 宁夏天地奔牛实业集团有限公司 | Mining speed reducer bearing end cover and mining speed reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 101102, Beijing, Zhongguancun Tongzhou District science and Technology Park, Tongzhou Park Jinqiao technology industry base, King Sheng street, No. 20 Patentee after: BEIJING BBK TEST SYSTEMS CO.,LTD. Address before: 101102, Tongzhou District Jinqiao Science and technology industrial base, Beijing, No. 20, King Sheng Street Patentee before: BEIJING BBK TESTING SYSTEMS Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150128 |