CN203162150U - Hydraulic cylinder for improving sealing performance of guide sleeves - Google Patents
Hydraulic cylinder for improving sealing performance of guide sleeves Download PDFInfo
- Publication number
- CN203162150U CN203162150U CN 201320194025 CN201320194025U CN203162150U CN 203162150 U CN203162150 U CN 203162150U CN 201320194025 CN201320194025 CN 201320194025 CN 201320194025 U CN201320194025 U CN 201320194025U CN 203162150 U CN203162150 U CN 203162150U
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- CN
- China
- Prior art keywords
- cylinder body
- cylinder
- rings
- guide sleeves
- guide sleeve
- 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
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Abstract
A hydraulic cylinder for improving sealing performance of guide sleeves comprises a cylinder; pistons and piston rods are arranged inside the cylinder body; the pistons and the piston rods are fixedly connected; the piston rods are connected with the guide sleeves which are arranged inside the cylinder body in a sliding mode; the two ends of the cylinder body are respectively provided with a cylinder head and a cylinder seat; the cylinder head is fixedly connected with one ends of the piston rods; the cylinder seat is fixedly connected with the cylinder body; the guide sleeves are closely connected with the cylinder body through o-shaped rings; first supporting rings, second supporting rings, main oil seals and dust proof rings are arranged between the guide sleeves and the cylinder body from inside to outside; glyd rings are arranged between the guide sleeves and the cylinder body; auxiliary sealing rings are also arranged between the guide sleeves and the piston rods and the auxiliary sealing rings are arranged between the first supporting rings and the second supporting rings; and the auxiliary sealing rings are formed by the main oil seal and auxiliary oil seal which are overlapped. According to the hydraulic cylinder for improving the sealing performance of the guide sleeves, the whole performance of the hydraulic cylinder is improved and the service life of the O-shaped rings and the main oil seal is improved due to the glyd rings and the auxiliary sealing rings.
Description
Technical field
The utility model relates to a kind of hydraulic jack, especially a kind of hydraulic jack that improves the guide sleeve sealing.
Background technique
At present, guide sleeve and piston rod in the hydraulic jack are slidingly connected, piston rod can produce compression shock to guide sleeve in the process that rises or descend, cause the stressed damage of O type circle between cylinder body and the guide sleeve, moreover, main oil sealing between guide sleeve and the piston rod also can cause main oil sealing to damage because of compression shock; The O type circle and the main oil sealing that damage have not only reduced the overall performance of hydraulic jack, have also shortened both working life.
Summary of the invention
The utility model provides a kind of hydraulic jack that improves the guide sleeve sealing, and the compression shock that has solved the hydraulic jack generation effectively causes the problem of damage to O type circle and main oil sealing, and has prolonged the working life of O type circle and main oil sealing.
In order to solve the problems of the technologies described above, the technical solution of the utility model is as follows: a kind of hydraulic jack that improves the guide sleeve sealing, comprise cylinder body, be provided with piston and piston rod in the cylinder body, piston is fixedlyed connected with piston rod, and the guide sleeve in piston rod and the cylinder body is slidingly connected, and the cylinder body two ends are respectively equipped with cylinder head and cylinder seat, cylinder head is fixedlyed connected with an end of piston rod, and the cylinder seat is fixedlyed connected with cylinder body; Described guide sleeve closely is connected with cylinder body by O type circle, is provided with first support ring, second support ring, main oil sealing and dust ring between guide sleeve and the piston rod from inside to outside successively; It is characterized in that: also be provided with Glais ring between described guide sleeve and the cylinder body, also be provided with auxiliary seal ring between guide sleeve and the piston rod, auxiliary seal ring is between first support ring and second support ring; Described auxiliary seal ring is made of the main oil sealing that is superimposed and secondary oil sealing.
Beneficial effect: the Glais ring that the utility model is set up between guide sleeve and cylinder body, can not only reduce O type circle and be stressed and impact the damage cause, can also cooperate the effect of playing double-sealing with O type circle; The auxiliary seal ring of setting up between guide sleeve and piston rod has reduced main oil sealing and has been stressed and impacts the damage cause.Glais ring and auxiliary seal ring have not only improved the overall performance of hydraulic jack, have also prolonged the working life of O type circle and main oil sealing.The utility model is simple in structure, and using effect is good.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the local enlarged diagram of A among Fig. 1.
1 is cylinder body among the figure, the 2nd, and piston, the 3rd, piston rod, the 4th, guide sleeve, the 5th, cylinder head, the 6th, the cylinder seat, the 7th, O type circle, 8 is first support rings, 9 is second support rings, the 10th, main oil sealing, the 11st, dust ring, the 12nd, Glais ring, the 13rd, auxiliary seal ring.
Embodiment
As illustrated in fig. 1 and 2, a kind of hydraulic jack that improves the guide sleeve sealing, comprise cylinder body 1, be provided with piston 2 and piston rod 3 in the cylinder body 1, piston 2 is fixedlyed connected with piston rod 3, and the guide sleeve 4 in piston rod 3 and the cylinder body 1 is slidingly connected, and cylinder body 1 two ends are respectively equipped with cylinder head 5 and cylinder seat 6, cylinder head 5 is fixedlyed connected with an end of piston rod 3, and cylinder seat 6 is fixedlyed connected with cylinder body 1; Described guide sleeve 4 closely is connected with cylinder body 1 by O type circle 7, is provided with first support ring 8, second support ring 9, main oil sealing 10 and dust ring 11 between guide sleeve 4 and the piston rod 3 from inside to outside successively; Also be provided with Glais ring 12 between described guide sleeve 4 and the cylinder body 1, also be provided with auxiliary seal ring 13 between guide sleeve 4 and the piston rod 3, auxiliary seal ring 13 is between first support ring 8 and second support ring 9; Described auxiliary seal ring 13 is made of the main oil sealing that is superimposed and secondary oil sealing.
Claims (1)
1. hydraulic jack that improves the guide sleeve sealing, comprise cylinder body, be provided with piston and piston rod in the cylinder body, piston is fixedlyed connected with piston rod, guide sleeve in piston rod and the cylinder body is slidingly connected, the cylinder body two ends are respectively equipped with cylinder head and cylinder seat, and cylinder head is fixedlyed connected with an end of piston rod, and the cylinder seat is fixedlyed connected with cylinder body; Described guide sleeve closely is connected with cylinder body by O type circle, is provided with first support ring, second support ring, main oil sealing and dust ring between guide sleeve and the piston rod from inside to outside successively; It is characterized in that: also be provided with Glais ring between described guide sleeve and the cylinder body, also be provided with auxiliary seal ring between guide sleeve and the piston rod, auxiliary seal ring is between first support ring and second support ring; Described auxiliary seal ring is made of the main oil sealing that is superimposed and secondary oil sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320194025 CN203162150U (en) | 2013-04-17 | 2013-04-17 | Hydraulic cylinder for improving sealing performance of guide sleeves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320194025 CN203162150U (en) | 2013-04-17 | 2013-04-17 | Hydraulic cylinder for improving sealing performance of guide sleeves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203162150U true CN203162150U (en) | 2013-08-28 |
Family
ID=49023335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320194025 Expired - Lifetime CN203162150U (en) | 2013-04-17 | 2013-04-17 | Hydraulic cylinder for improving sealing performance of guide sleeves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203162150U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108291650A (en) * | 2015-12-15 | 2018-07-17 | Nok株式会社 | Sealing device |
| CN112133459A (en) * | 2020-08-27 | 2020-12-25 | 清华大学 | Method for assembling hydraulic cylinder |
-
2013
- 2013-04-17 CN CN 201320194025 patent/CN203162150U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108291650A (en) * | 2015-12-15 | 2018-07-17 | Nok株式会社 | Sealing device |
| CN112133459A (en) * | 2020-08-27 | 2020-12-25 | 清华大学 | Method for assembling hydraulic cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 442500 Hubei Yunxian Economic Development Zone, Shiyan, Hubei Patentee after: HUBEI JIAHENG TECHNOLOGY CO.,LTD. Address before: 442500 Hubei Yunxian Economic Development Zone, Shiyan, Hubei Patentee before: HUBEI JIAHENG TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130828 |
|
| CX01 | Expiry of patent term |