CN210484613U - Single-acting pneumatic piston rod sealing element - Google Patents
Single-acting pneumatic piston rod sealing element Download PDFInfo
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- CN210484613U CN210484613U CN201921621359.5U CN201921621359U CN210484613U CN 210484613 U CN210484613 U CN 210484613U CN 201921621359 U CN201921621359 U CN 201921621359U CN 210484613 U CN210484613 U CN 210484613U
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- lip body
- contact end
- end surface
- piston rod
- chamfer
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Abstract
The utility model relates to a single action pneumatic piston rod seal spare, including the sealing member body, the top and the bottom of the vertical contact terminal surface of third are connected the setting with second horizontal contact terminal surface and first horizontal contact terminal surface respectively, and second horizontal contact terminal surface and first horizontal contact terminal surface are connected the setting with first lip body and second lip body respectively, and first lip body includes first vertical contact terminal surface and inclined plane end, and the second lip body includes vertical contact terminal surface of second and cambered surface end, is provided with concave part between the first lip body and the second lip body, and the opening size of concave part from interior to exterior grow in proper order. The utility model discloses the sealing member body sets up through first lip body, second lip body and groove part structure, and embedding slot back stability is better, and sealing performance is better, and temperature accommodation range is wider simultaneously.
Description
Technical Field
The utility model relates to a piston rod seals relevant technical field, especially relates to a single action pneumatic piston rod seal spare.
Background
The piston rod is a connecting component for supporting the piston to do work, most of the piston rod is applied to an oil cylinder and an air cylinder movement executing component, and the piston rod is a movement component with frequent movement and high technical requirements. Taking a hydraulic oil cylinder as an example, the hydraulic oil cylinder comprises: the cylinder barrel, the piston rod (oil cylinder rod), the piston and the end cover. The quality of the processing quality directly influences the service life and the reliability of the whole product. The piston rod has high processing requirement, the surface roughness requirement of the piston rod is Ra0.4-0.8 mu m, and the requirements on coaxiality and wear resistance are strict. And piston rod seal assembly is an essential key components and parts among the piston normal operating process, and piston rod seal assembly commonly used among the prior art is sealing washer, sealing ring isotructure, and stability is relatively poor behind the embedding slot, leads to sealed effect not good, and temperature accommodation is less simultaneously.
In view of the above-mentioned drawbacks, the present inventors have made active research and innovation to create a single-acting pneumatic piston rod seal, which is more industrially valuable.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims at providing a single-action pneumatic piston rod sealing member.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a single-action pneumatic piston rod sealing element comprises a sealing element body, wherein the sealing element body comprises a first lip body, a second lip body, a first horizontal contact end face, a third vertical contact end face and a second horizontal contact end face, the top end and the bottom end of the third vertical contact end face are respectively connected with the second horizontal contact end face and the first horizontal contact end face, the second horizontal contact end face and the first horizontal contact end face are respectively connected with the first lip body and the second lip body, the first lip body comprises a first vertical contact end face and an inclined plane end, the inclined plane end is arranged on the outer side of the top end of the first lip body, the first vertical contact end face is arranged on the outer side of the right end of the first lip body, the second lip body comprises a second vertical contact end face and an arc face end, the arc face end is arranged on the outer side of the bottom end of the second lip body, the second vertical contact end face is arranged on the outer side of the right end of the second lip body, a groove portion is arranged between the first lip body and, the size of the opening of the groove part is increased from inside to outside in sequence.
As a further improvement, the utility model is provided with a first chamfer between inclined plane end and the first vertical contact terminal surface, and the angle of first chamfer is 30 ~ 45 degrees.
As the utility model discloses a further improvement, the inboard top and the bottom of concave part all are provided with the second chamfer, and the angle of second chamfer is 30 ~ 45 degrees.
As a further improvement, the utility model is provided with a third chamfer between first horizontal contact terminal surface and the vertical contact terminal surface of third, and the angle of third chamfer is 30 ~ 45 degrees.
As a further improvement, the utility model is provided with a fourth chamfer between the vertical contact terminal surface of third and the horizontal contact terminal surface of second, and the angle of fourth chamfer is 30 ~ 45 degrees.
As a further improvement of the utility model, a first arc groove is arranged between the arc end and the first horizontal contact end face.
As a further improvement of the utility model, a second arc groove is arranged between the second horizontal contact end face and the inclined plane end.
As a further improvement of the utility model, the length of the first lip body is larger than that of the second lip body.
As a further improvement, the sealing element body is arranged in a polyurethane structure.
Borrow by above-mentioned scheme, the utility model discloses at least, have following advantage:
the utility model discloses pneumatic piston rod seal of single action, sealing member body are through the setting of first lip body, second lip body and groove part structure, and embedding slot back stability is better, and sealing performance is better, and temperature accommodation range is wider simultaneously.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of a single-acting pneumatic piston rod seal of the present invention.
In the drawings, the meanings of the reference numerals are as follows.
1 first lip 2 first chamfer
3 first vertical contact end face 4 groove part
5 second chamfer 6 second lip body
7 second vertical contact end face 8 cambered surface end
9 first arc groove 10 first horizontal contact end face
11 third chamfer 12 third vertical contact end face
13 fourth chamfer 14 second horizontal contact end face
15 second arc groove 16 inclined plane end
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In order to make the technical solution of the present invention better understood, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
As shown in figure 1 of the drawings, in which,
a single-action pneumatic piston rod sealing element comprises a sealing element body, wherein the sealing element body comprises a first lip body 1, a second lip body 6, a first horizontal contact end face 10, a third vertical contact end face 12 and a second horizontal contact end face 14, the top end and the bottom end of the third vertical contact end face 12 are respectively connected with the second horizontal contact end face 14 and the first horizontal contact end face 10, the second horizontal contact end face 14 and the first horizontal contact end face 10 are respectively connected with the first lip body 1 and the second lip body 6, the first lip body 1 comprises a first vertical contact end face 3 and an inclined plane end 16, the inclined plane end 16 is arranged on the outer side of the top end of the first lip body 1, the first vertical contact end face 3 is arranged on the outer side of the right end of the first lip body 1, the second lip body 6 comprises a second vertical contact end face 7 and an arc surface end 8, the arc surface end 8 is arranged on the outer side of the bottom end of the second lip body 6, the second vertical contact end face 7 is arranged on the outer side of the right end of the second lip body, a groove part 4 is arranged between the first lip body 1 and the second lip body 6, and the opening size of the groove part 4 is enlarged from inside to outside in sequence.
Preferably, a first chamfer 2 is arranged between the inclined surface end 16 and the first vertical contact end surface 3, the angle of the first chamfer 2 is 30-45 degrees, and the angle of the first chamfer 2 is 45 degrees.
Preferably, the top end and the bottom end of the inner side of the groove part 4 are both provided with a second chamfer 5, the angle of the second chamfer 5 is 30-45 degrees, and more preferably, the angle of the second chamfer 5 is 45 degrees.
Preferably, a third chamfer 11 is arranged between the first horizontal contact end face 10 and the third vertical contact end face 12, the angle of the third chamfer 11 is 30-45 degrees, and more preferably, the angle of the third chamfer 11 is 45 degrees.
Preferably, a fourth chamfer 13 is arranged between the third vertical contact end face 12 and the second horizontal contact end face 14, the angle of the fourth chamfer 13 is 30-45 degrees, and more preferably, the angle of the fourth chamfer 13 is 45 degrees.
Through the setting of first chamfer 2, second chamfer 5, third chamfer 11 and fourth chamfer 13, make the utility model discloses the sealing member body is better with the effect of sealing end face contact, improves sealing performance.
Preferably, a first arc groove 9 is provided between the arc end 8 and the first horizontal contact end face 10.
Preferably, a second circular arc groove 15 is provided between the second horizontal contact end surface 14 and the bevel end 16.
Preferably, the length of the first lip body 1 is greater than the length of the second lip body 6.
Preferably, the seal body is provided in a polyurethane type construction.
The single-acting pneumatic piston rod sealing element of the utility model has the working temperature of minus 50 ℃ to minus 210 ℃ and the movement speed of 1m/s, and is mainly used in the related fields of hydraulic cylinders and air cylinders.
The utility model discloses pneumatic piston rod seal of single action, sealing member body are through first lip body 1, second lip body 6 and the 4 structure settings of concave part, and sealing member body embedding slot back stability is better, and sealing performance is better, and temperature accommodation range is wider simultaneously.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The single-action pneumatic piston rod sealing element is characterized by comprising a sealing element body, wherein the sealing element body comprises a first lip body (1), a second lip body (6), a first horizontal contact end surface (10), a third vertical contact end surface (12) and a second horizontal contact end surface (14), the top end and the bottom end of the third vertical contact end surface (12) are respectively connected with the second horizontal contact end surface (14) and the first horizontal contact end surface (10), the second horizontal contact end surface (14) and the first horizontal contact end surface (10) are respectively connected with the first lip body (1) and the second lip body (6), the first lip body (1) comprises a first vertical contact end surface (3) and an inclined plane end (16), the inclined plane end (16) is arranged on the outer side of the top end of the first lip body (1), the first vertical contact end surface (3) is arranged on the outer side of the right end of the first lip body (1), the second lip body (6) includes vertical contact terminal surface (7) of second and cambered surface end (8), cambered surface end (8) set up in the bottom outside of the second lip body (6), the vertical contact terminal surface (7) of second sets up in the right-hand member outside of the second lip body (6), be provided with between the first lip body (1) and the second lip body (6) concave part (4), the opening size of concave part (4) is by interior grow in proper order to outer.
2. A single-acting pneumatic piston rod seal according to claim 1, characterized in that a first chamfer (2) is provided between the beveled end (16) and the first vertical contact end surface (3), the angle of the first chamfer (2) being 30-45 degrees.
3. A single-acting pneumatic piston rod seal according to claim 1, characterized in that the groove portion (4) is provided with a second chamfer (5) at both the inside top and bottom ends, the angle of the second chamfer (5) being 30-45 degrees.
4. A single-acting pneumatic piston rod seal according to claim 1, characterised in that a third chamfer (11) is provided between the first horizontal contact end surface (10) and the third vertical contact end surface (12), the angle of the third chamfer (11) being 30-45 degrees.
5. A single-acting pneumatic piston rod seal according to claim 1, characterised in that a fourth chamfer (13) is provided between the third vertical contact end surface (12) and the second horizontal contact end surface (14), the angle of the fourth chamfer (13) being 30-45 degrees.
6. A single-acting pneumatic piston rod seal as claimed in claim 1, characterized in that a first circular arc groove (9) is provided between the arc end (8) and the first horizontal contact end surface (10).
7. A single-acting pneumatic piston rod seal according to claim 1, characterised in that a second circular arc groove (15) is provided between the second horizontal contact end surface (14) and the bevel end (16).
8. A single-acting pneumatic piston rod seal as claimed in claim 1, characterized in that the length of the first lip body (1) is greater than the length of the second lip body (6).
9. A single acting pneumatic piston rod seal as claimed in claim 1 wherein said seal body is of polyurethane type construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921621359.5U CN210484613U (en) | 2019-09-26 | 2019-09-26 | Single-acting pneumatic piston rod sealing element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921621359.5U CN210484613U (en) | 2019-09-26 | 2019-09-26 | Single-acting pneumatic piston rod sealing element |
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| Publication Number | Publication Date |
|---|---|
| CN210484613U true CN210484613U (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921621359.5U Active CN210484613U (en) | 2019-09-26 | 2019-09-26 | Single-acting pneumatic piston rod sealing element |
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| CN (1) | CN210484613U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983921A (en) * | 2021-01-05 | 2021-06-18 | 威海中颐液压科技股份有限公司 | Spiral hydraulic swing motor |
-
2019
- 2019-09-26 CN CN201921621359.5U patent/CN210484613U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983921A (en) * | 2021-01-05 | 2021-06-18 | 威海中颐液压科技股份有限公司 | Spiral hydraulic swing motor |
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