CN205025998U - Tensile air spring of two -chamber with buffer function - Google Patents
Tensile air spring of two -chamber with buffer function Download PDFInfo
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- CN205025998U CN205025998U CN201520596983.XU CN201520596983U CN205025998U CN 205025998 U CN205025998 U CN 205025998U CN 201520596983 U CN201520596983 U CN 201520596983U CN 205025998 U CN205025998 U CN 205025998U
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- piston rod
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Abstract
The utility model provides a tensile air spring of two -chamber with buffer function, including outer tube and piston rod, the outer tube both ends are provided with the stifled and piston rod business turn over hole of tail respectively, are provided with the first and second cyclic annular spacing archs on the outer inside pipe wall, form oil pocket, interior lumen, outlet chamber in messenger's outer tube, the inner tube intracavity is provided with base, bush and inner tube, and the inner tube both ends are suit base boss and bush boss respectively, and the center of base is provided with the damping hole, the downthehole cyclic annular current -limiting arch that is provided with of damping, and the center of bush is provided with first through rod hole, be provided with the oil blanket in the outlet chamber, the center of oil blanket is provided with second through rod hole, the piston rod passes piston rod business turn over hole, second through rod hole and first through rod hole in proper order. The utility model provides a tensile air spring of two -chamber with buffer function adopts floating connection between the cavity, guarantee the concentricity and the straightness accuracy of two cavitys, is provided with the damping hole simultaneously, makes tensile air spring can control reset speed and have buffer function when reseing.
Description
Technical field
The utility model relates to a kind of air spring, particularly relates to a kind of two-chamber stretching air spring with pooling feature.
Background technique
Now stretching air spring commercially has three kinds of structures: single chamber single pole structure, size bar structure, double cavity structure, wherein uses the most extensive with double cavity structure.
And two of existing double cavity structure usual employings of cavity connection is welding manner, concentricity and the straightness accuracy of guarantee two cavitys is difficult in actual production course of working, the monolateral friction of piston and interior pipe, piston rod and oil sealing and guiding can be caused, increase the internal friction of air spring product, be difficult to realize product stretch freely, particularly stroke is longer, stretch and more have some setbacks, initial pulling force and final pulling force gap larger, practical operation difficulty, even if can not form mass production or produce in batches also to cause defect rate high, cost of production is larger.
In addition, this structure can not with damping buffering function when resilience, and product is very fast at stretching return process medium velocity, impact force is comparatively large, the risk factor that adding users uses.
Model utility content
The technical problems to be solved in the utility model overcomes existing defect, provides a kind of two-chamber stretching air spring with pooling feature, ensures concentricity and the straightness accuracy of two cavitys, have pooling feature.
In order to solve the problems of the technologies described above, the utility model provides following technological scheme:
A kind of two-chamber stretching air spring with pooling feature, comprise outer tube and piston rod, one end of described outer tube is provided with tail and blocks up, the other end of described outer tube is provided with piston rod manhole appendix, the front end of described piston rod is provided with piston, the rear end of the exterior edge face that described tail blocks up and described piston rod is provided with joint, described outer tube wall is provided with the first ring-type spacing preiection and the second ring-type spacing preiection, it is oil pocket that described tail blocks up the cavity formed between described first ring-type spacing preiection, the cavity formed between described first ring-type spacing preiection and described second ring-type spacing preiection is interior tube chamber, the cavity formed between described second ring-type spacing preiection and described piston rod manhole appendix is outlet plenum, base, lining and interior pipe is provided with in described interior tube chamber, described base is provided with base boss facing to the side of described lining, described lining is provided with lining boss facing to the side of described base, the two ends of described interior pipe are set with described base boss and described lining boss, described first ring-type spacing preiection and described second ring-type spacing preiection is withstood respectively to make described base and described lining, the center of described base is provided with damping hole, be provided with ring-type current limliting in described damping hole protruding, the center of described lining is provided with the first through rod hole, be provided with oil sealing in described outlet plenum, the center of described oil sealing is provided with the second through rod hole, described piston rod successively through described piston rod manhole appendix, described second through rod hole and described first through rod hole, with make described piston between described base boss and described lining boss in pipe tube chamber.
Further, guide sleeve is provided with between described oil sealing and described piston rod manhole appendix.
Further, between the inwall of described base and described outer tube, between described base boss and the inwall of described interior pipe, between described piston and the inwall of described interior pipe, seal ring is provided with.
Further, the material of described seal ring is butadiene acrylonitrile rubber.
A kind of two-chamber stretching air spring with pooling feature of the utility model, floating type connection is adopted between cavity, ensure concentricity and the straightness accuracy of two cavitys, be provided with damping hole simultaneously, make stretching air spring can control reset speed when resetting and have pooling feature.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for specification, is used from explanation the utility model, does not form restriction of the present utility model with embodiment one of the present utility model.In the accompanying drawings:
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the utility model, and be not used in restriction the utility model.
As shown in Figure 1, a kind of two-chamber stretching air spring with pooling feature, comprise outer tube 1 and piston rod 2, one end of outer tube 1 is provided with tail stifled 3, the other end of outer tube 1 is provided with piston rod manhole appendix, the front end of piston rod 2 is provided with piston 4, and tail blocks up the exterior edge face of 3 and the rear end of piston rod 2 and is provided with joint 5.
Outer tube 1 inwall is provided with the first ring-type spacing preiection and the second ring-type spacing preiection, it is oil pocket 6 that tail blocks up 3 and first cavitys formed between ring-type spacing preiection, the cavity formed between first ring-type spacing preiection and the second ring-type spacing preiection is the cavity formed between interior tube chamber 7, second ring-type spacing preiection and piston rod manhole appendix is outlet plenum 8.Ring-type spacing preiection after inner member sets, at outer tube externally to interior machine shaping of exerting pressure, can be suitable for mass production.
Base 9, lining 10 and interior pipe 11 is provided with in interior tube chamber 7, base 9 is provided with base boss facing to the side of lining 10, lining 10 is provided with lining boss facing to the side of base 9, the two ends of interior pipe 11 are set with base boss and lining boss, the first ring-type spacing preiection and the second ring-type spacing preiection is withstood respectively to make base 9 and lining 10, the center of base 9 is provided with damping hole, is provided with ring-type current limliting projection 12 in damping hole, and the center of lining 10 is provided with the first through rod hole.
Be provided with oil sealing 13 in outlet plenum 8, the center of oil sealing 13 is provided with the second through rod hole, piston rod 2 successively through piston rod manhole appendix, the second through rod hole and the first through rod hole, with make piston 4 between base boss and lining boss in pipe tube chamber.
Be provided with guide sleeve l4 between oil sealing 13 and piston rod 2 manhole appendix, ensure concentricity and straightness accuracy further, prevent piston and the monolateral side friction of piston rod.
Seal ring 15 is provided with, the sealing of assurance device between the inwall of base 9 and outer tube 1, between base boss and the inwall of interior pipe 11, between piston 4 and the inwall of interior pipe 11.
The material of seal ring 15 is butadiene acrylonitrile rubber, and oil resistance is good, and wear resistance is high.
Working principle:
By base floating connection between oil pocket and interior pipe tube chamber, ideal straightness accuracy and concentricity can be realized, guarantee that product frictional force in running is moderate, be easy to actual production manipulation.
Product is when being subject to tractive force and being stretched to most strong point by most weakness, the damping oil of oil pocket can by base damping hole enter interior pipe tube chamber, when product is in reset springback process, damping oil can turn back to oil pocket by base damping hole gradually, thus reaches the function of buffering.
A kind of two-chamber stretching air spring with pooling feature of the utility model, floating type connection is adopted between cavity, ensure concentricity and the straightness accuracy of two cavitys, be provided with damping hole simultaneously, make stretching air spring can control reset speed when resetting and have pooling feature.
Last it is noted that the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although be described in detail the utility model with reference to previous embodiment, for a person skilled in the art, it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. the two-chamber stretching air spring with pooling feature, comprise outer tube and piston rod, one end of described outer tube is provided with tail and blocks up, the other end of described outer tube is provided with piston rod manhole appendix, the front end of described piston rod is provided with piston, the rear end of the exterior edge face that described tail blocks up and described piston rod is provided with joint, it is characterized in that:
Described outer tube wall is provided with the first ring-type spacing preiection and the second ring-type spacing preiection, it is oil pocket that described tail blocks up the cavity formed between described first ring-type spacing preiection, the cavity formed between described first ring-type spacing preiection and described second ring-type spacing preiection is interior tube chamber, and the cavity formed between described second ring-type spacing preiection and described piston rod manhole appendix is outlet plenum;
Base, lining and interior pipe is provided with in described interior tube chamber, described base is provided with base boss facing to the side of described lining, described lining is provided with lining boss facing to the side of described base, the two ends of described interior pipe are set with described base boss and described lining boss, described first ring-type spacing preiection and described second ring-type spacing preiection is withstood respectively to make described base and described lining, the center of described base is provided with damping hole, be provided with ring-type current limliting in described damping hole protruding, the center of described lining is provided with the first through rod hole;
Be provided with oil sealing in described outlet plenum, the center of described oil sealing is provided with the second through rod hole;
Described piston rod successively through described piston rod manhole appendix, described second through rod hole and described first through rod hole, with make described piston between described base boss and described lining boss in pipe tube chamber.
2. a kind of two-chamber stretching air spring with pooling feature according to claim 1, is characterized in that: be provided with guide sleeve between described oil sealing and described piston rod manhole appendix.
3. a kind of two-chamber stretching air spring with pooling feature according to claim 1, is characterized in that: be provided with seal ring between the inwall of described base and described outer tube, between described base boss and the inwall of described interior pipe, between described piston and the inwall of described interior pipe.
4. a kind of two-chamber stretching air spring with pooling feature according to claim 3, is characterized in that: the material of described seal ring is butadiene acrylonitrile rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520596983.XU CN205025998U (en) | 2015-08-10 | 2015-08-10 | Tensile air spring of two -chamber with buffer function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520596983.XU CN205025998U (en) | 2015-08-10 | 2015-08-10 | Tensile air spring of two -chamber with buffer function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205025998U true CN205025998U (en) | 2016-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520596983.XU Active CN205025998U (en) | 2015-08-10 | 2015-08-10 | Tensile air spring of two -chamber with buffer function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205025998U (en) |
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2015
- 2015-08-10 CN CN201520596983.XU patent/CN205025998U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |