CN212131274U - Axial sealing structure of piston shaft - Google Patents
Axial sealing structure of piston shaft Download PDFInfo
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- CN212131274U CN212131274U CN202020465186.9U CN202020465186U CN212131274U CN 212131274 U CN212131274 U CN 212131274U CN 202020465186 U CN202020465186 U CN 202020465186U CN 212131274 U CN212131274 U CN 212131274U
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- piston shaft
- round hole
- positioning sleeve
- gland
- wedge
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Abstract
The utility model discloses an axial sealing structure of a piston shaft, which comprises a piston shaft, wherein a guide sleeve arranged outside the circumference of the piston shaft is sleeved on the piston shaft, and a circular sealing ring is arranged between the piston shaft and the guide sleeve; the outer side of the circumference of the piston shaft is also provided with a positioning sleeve, a horizontal round hole is formed in the inner part of the positioning sleeve, the outer side of the positioning sleeve is provided with a hydraulic oil cylinder, a V-shaped sealing group is arranged between the inner side of the positioning sleeve and the piston shaft, and a dustproof ring is arranged between the inner part of a gland arranged at the end part of the piston shaft and the piston shaft; the inside through-hole that links together with horizontal circular slot that still establishes of gland, the horizontal round hole of position sleeve still is connected with the inside second round hole of hydraulic cylinder, the horizontal round hole of the inside second round hole perpendicular to of hydraulic cylinder, the utility model has the advantages that: the installation precision is reduced by using the v-shaped combined seal, the radial compensation effect is realized, the installation time is shortened, the sealing ring is not easily scratched during installation, the time-saving and labor-saving effects are achieved, and the service life of the sealing structure is prolonged.
Description
Technical Field
The utility model relates to a pipeline transportation field, a reciprocating type piston's seal structure specifically says so.
Background
The reciprocating piston pump produced by German Feluwa company has the characteristics of low failure rate and few easily-damaged parts due to good hydraulic and electrical control systems, and is widely applied to the pipeline conveying of industries such as coal chemical industry, mines, alumina and the like. The continuous operation rate of chemical enterprises in coal chemical industry and the like reaches 95%, except for scheduled maintenance and shutdown, once the condition occurs, the shutdown is caused, and the shutdown of the whole process flow is directly influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model discloses an axial seal structure of piston shaft.
The specific technical scheme is as follows:
an axial sealing structure of a piston shaft comprises the piston shaft, a guide sleeve arranged on the outer side of the circumference of the piston shaft is sleeved on the piston shaft, and a circular sealing ring is arranged between the piston shaft and the guide sleeve; the outer side of the circumference of the piston shaft is also provided with a positioning sleeve, a horizontal round hole is formed in the inner part of the positioning sleeve, the outer side of the positioning sleeve is provided with a hydraulic oil cylinder, a V-shaped sealing group is arranged between the inner side of the positioning sleeve and the piston shaft, and a dustproof ring is arranged between the inner part of a gland arranged at the end part of the piston shaft and the piston shaft; the inside through-hole that links together with horizontal circular slot that still is equipped with of gland, the horizontal round hole of position sleeve still is connected with the inside second round hole of hydraulic cylinder, the horizontal round hole of the inside second round hole perpendicular to of hydraulic cylinder, the sealed group of V type includes V type piece, wedge and rectangular block, the left end portion at the sealed group of V type is established to V type piece, and the position that sets up the wedge and the contact of V type piece on one side of V type piece sets up along with the shape to be equipped with spherical groove on the position of contact, the outside cross sectional area of wedge reduces from a left side to the right side gradually, sets up the position and the wedge appearance of rectangular block and the wedge butt of the right-hand member at the sealed group of V type and sets up along with the shape, the position of rectangular block and wedge butt still is equipped with the spherical groove unanimous with the wedge, rectangular block appearance and gland butt.
And the round hole in the gland is vertical to the horizontal round hole of the positioning sleeve.
The contact position of the gland, the positioning sleeve and the hydraulic cylinder is arranged along with the shape, and the hydraulic cylinder and the positioning sleeve are fixed together by the gland through a positioning bolt.
An O-shaped sealing ring is further arranged between the positioning sleeve and the hydraulic oil cylinder.
The utility model has the advantages that: the mounting precision is reduced by using the v-shaped combined seal, the effect of compensating the radial direction is realized, the v-shaped seal ring selected and used and the changed gland and other matched parts are mounted by transforming the space size of the original piston seal structure, the mounting time is shortened, the seal ring is not easily scratched during mounting, and the time and labor are saved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a left side view of fig. 1.
Detailed Description
The present invention is described in detail with reference to the accompanying drawings, and as shown in fig. 1 and 2, an axial sealing structure of a piston shaft comprises a piston shaft 1, a guide sleeve 2 arranged outside the circumference of the piston shaft is sleeved on the piston shaft 1, and a circular sealing ring 3 is further arranged between the piston shaft and the guide sleeve; a positioning sleeve 4 is further arranged on the outer side of the circumference of the piston shaft 1, a horizontal round hole 401 is formed in the positioning sleeve 4, a hydraulic oil cylinder 5 is arranged on the outer side of the positioning sleeve 4, a V-shaped sealing group 6 is arranged between the inner side of the positioning sleeve and the piston shaft 1, and a dust ring 8 is arranged between the inner part of a gland 7 arranged at the end part of the piston shaft and the piston shaft; a through hole 701 connected with the horizontal circular groove is also arranged in the gland, the horizontal circular hole 401 of the positioning sleeve is also connected with a second circular hole 501 in the hydraulic oil cylinder, a second round hole 501 in the hydraulic oil cylinder is vertical to the horizontal round hole 401, the V-shaped sealing group 6 comprises a V-shaped block 9, a wedge-shaped block 10 and a rectangular block 11, the V-shaped block 9 is arranged at the left end part of the V-shaped sealing group, the position where the wedge-shaped block 10 arranged at one side of the V-shaped block is contacted with the V-shaped block is arranged along with the shape, a spherical groove 1001 is arranged at the contact position, the external section area of the wedge block 10 is gradually reduced from left to right, the position where the rectangular block 11 arranged at the rightmost end of the V-shaped sealing group is abutted with the wedge block is arranged along the shape of the wedge block 10, the position of rectangular block and wedge butt still is equipped with the spherical recess 1001 unanimous with the wedge, 11 appearances of rectangular block and gland butt.
The round hole 701 in the gland is perpendicular to the horizontal round hole 401 of the locating sleeve.
The contact position of the gland, the positioning sleeve and the hydraulic cylinder is arranged along with the shape, and the hydraulic cylinder 5 and the positioning sleeve 4 are fixed together by the gland through a positioning bolt 12.
An O-shaped sealing ring 13 is further arranged between the positioning sleeve 4 and the hydraulic oil cylinder 5.
Claims (4)
1. The utility model provides an axial seal structure of piston shaft, includes the piston shaft, its characterized in that: the guide sleeve arranged on the outer side of the circumference of the piston shaft is sleeved on the piston shaft, and a circular sealing ring is also arranged between the piston shaft and the guide sleeve; the outer side of the circumference of the piston shaft is also provided with a positioning sleeve, a horizontal round hole is formed in the inner part of the positioning sleeve, the outer side of the positioning sleeve is provided with a hydraulic oil cylinder, a V-shaped sealing group is arranged between the inner side of the positioning sleeve and the piston shaft, and a dustproof ring is arranged between the inner part of a gland arranged at the end part of the piston shaft and the piston shaft; the inside through-hole that links together with horizontal circular slot that still is equipped with of gland, the horizontal round hole of position sleeve still is connected with the inside second round hole of hydraulic cylinder, the horizontal round hole of the inside second round hole perpendicular to of hydraulic cylinder, the sealed group of V type includes V type piece, wedge and rectangular block, the left end portion at the sealed group of V type is established to V type piece, and the position that sets up the wedge and the contact of V type piece on one side of V type piece sets up along with the shape to be equipped with spherical groove on the position of contact, the outside cross sectional area of wedge reduces from a left side to the right side gradually, sets up the position and the wedge appearance of rectangular block and the wedge butt of the right-hand member at the sealed group of V type and sets up along with the shape, the position of rectangular block and wedge butt still is equipped with the spherical groove unanimous with the wedge, rectangular block appearance and gland butt.
2. The axial seal structure of a piston shaft according to claim 1, characterized in that: and the round hole in the gland is vertical to the horizontal round hole of the positioning sleeve.
3. The axial seal structure of a piston shaft according to claim 1, characterized in that: the contact position of the gland, the positioning sleeve and the hydraulic cylinder is arranged along with the shape, and the hydraulic cylinder and the positioning sleeve are fixed together by the gland through a positioning bolt.
4. The axial seal structure of a piston shaft according to claim 1, characterized in that: an O-shaped sealing ring is further arranged between the positioning sleeve and the hydraulic oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020465186.9U CN212131274U (en) | 2020-04-02 | 2020-04-02 | Axial sealing structure of piston shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020465186.9U CN212131274U (en) | 2020-04-02 | 2020-04-02 | Axial sealing structure of piston shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212131274U true CN212131274U (en) | 2020-12-11 |
Family
ID=73688018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020465186.9U Active CN212131274U (en) | 2020-04-02 | 2020-04-02 | Axial sealing structure of piston shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212131274U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113028062A (en) * | 2021-02-04 | 2021-06-25 | 益阳橡胶塑料机械集团有限公司 | Novel double-sealing structure of through-shaft rotor of internal mixer and mounting method thereof |
| CN114017414A (en) * | 2021-11-01 | 2022-02-08 | 武汉力地液压设备有限公司 | Self-adaptive sealing device of hydraulic cylinder and self-adaptive adjusting method |
-
2020
- 2020-04-02 CN CN202020465186.9U patent/CN212131274U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113028062A (en) * | 2021-02-04 | 2021-06-25 | 益阳橡胶塑料机械集团有限公司 | Novel double-sealing structure of through-shaft rotor of internal mixer and mounting method thereof |
| CN114017414A (en) * | 2021-11-01 | 2022-02-08 | 武汉力地液压设备有限公司 | Self-adaptive sealing device of hydraulic cylinder and self-adaptive adjusting method |
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