CN202468536U - Slender telescopic hydraulic cylinder oil passage and sealing system integrated piston structure - Google Patents
Slender telescopic hydraulic cylinder oil passage and sealing system integrated piston structure Download PDFInfo
- Publication number
- CN202468536U CN202468536U CN2012200463118U CN201220046311U CN202468536U CN 202468536 U CN202468536 U CN 202468536U CN 2012200463118 U CN2012200463118 U CN 2012200463118U CN 201220046311 U CN201220046311 U CN 201220046311U CN 202468536 U CN202468536 U CN 202468536U
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- piston
- oil passage
- hydraulic cylinder
- sealing system
- hydraulic
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- Expired - Lifetime
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Abstract
The utility model discloses a slender telescopic hydraulic cylinder oil passage and sealing system integrated piston structure and belongs to a hydraulic cylinder guide mechanism. The slender telescopic hydraulic cylinder oil passage and sealing system integrated piston structure comprises a piston, a piston rod, a cylinder barrel and a hydraulic oil passage; a first oil port and a second oil port are arranged in the piston rod; an annular groove and a cross-shaped groove are arranged in one end of the piston close to a rod cavity; the first oil port and the second oil port in the piston rod form the hydraulic oil passage, a static seal is installed between the piston and the piston rod, a guide ring and a sealing ring are installed at the connecting part of the piston and the cylinder barrel; and the piston, the hydraulic oil passage and a sealing system of the hydraulic oil passage are unified into an overall structure. The existing spacer sleeve with the oil passage and a piston split structure are omitted, so that the piston, the oil passage and the seal are integrated; by utilizing the space of the spacer sleeve, not only is the structure of the oil passage effectively improved, and is the pressure loss reduced, but also the span of a guide supporting ring of the piston is increased, and the lateral force resistance of a hydraulic cylinder is improved. The slender telescopic hydraulic cylinder oil passage and sealing system integrated piston structure has the beneficial effects of simple structure, convenience in processing and reduced production cost.
Description
Technical field
The utility model relates to a kind of piston, specifically is a kind of elongated type of telescopic hydraulic cylinder oil circuit and sealing system integrated form piston structure, is specially adapted to elongated type of telescopic hydraulic cylinder, little mounting distance oil hydraulic cylinder, long stroke hydraulic cylinder.
Background technique
At present, domestic telescopic oil cylinder mostly adopts spacer and the piston split structural type that has oil circuit, through get on the bus circular groove and drill through oilhole at spacer; Its deficiency is to take the oil cylinder horizontal space, in use is prone to situation such as oil circuit has some setbacks, in addition because spacer takies horizontal space; Shortened the piston guide length of span; Reduce the oil cylinder usability, under the restricted prerequisite of the little mounting distance of telescopic oil cylinder, this kind structure has narrow limitation.
Summary of the invention
For solving the problems of the technologies described above; The utility model provides a kind of elongated type of telescopic hydraulic cylinder oil circuit and sealing system integrated form piston structure; The piston that is used for elongated type of telescopic hydraulic cylinder, long stroke hydraulic cylinder; Purpose is to satisfy the little mounting distance of client's needs, long stroke class oil cylinder, enhances productivity, and is convenient to the assembling of oil cylinder.
The utility model is realized with following technological scheme: a kind of elongated type of telescopic hydraulic cylinder oil circuit and sealing system integrated form piston structure; Comprise piston, piston rod, cylinder barrel and hydraulic circuit; First hydraulic fluid port and second hydraulic fluid port are arranged on piston rod; On piston, lean on an end of rod chamber to have circular groove and cross recess; Form hydraulic circuit with first hydraulic fluid port and second hydraulic fluid port on the piston rod, between piston and piston rod, static seal is installed, guide ring and seal ring are installed at piston and cylinder barrel connection part; With piston, hydraulic circuit and sealing system thereof structure in aggregates.
Owing to adopted said structure, promptly increase the car circular groove on the piston and mill cross recess, replace originally having the spacer of oil circuit, be one with sealing system and hydraulic circuit collection.Made full use of the length of former spacer, both improved oil channel structures effectively and reduced the pressure loss, oversize piston guided bearing ring span strengthens telescopic hydraulic cylinder anti-crawl agentdefiection degree and lateral force resistance ability again, improves and produces, and has reduced cost; Can satisfy the use of some elongated type of telescopic hydraulic cylinders, little mounting distance oil hydraulic cylinder, long stroke hydraulic cylinder.
The beneficial effect of the utility model is: strengthened piston guide supporting ring span, strengthened telescopic hydraulic cylinder anti-crawl agentdefiection degree and lateral force resistance ability, improved the usability of oil cylinder product, simple in structure, easy to process, assembling is simple, reduces cost.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Accompanying drawing is the structural representation of the utility model.
Among the figure: 1, piston rod, 11, first hydraulic fluid port, 12, second hydraulic fluid port, 2, piston, 21, circular groove, 22, cross recess, 3, cylinder barrel, 4, static seal, 5, guide ring, 6, seal ring.
Embodiment
Shown in accompanying drawing, elongated class telescopic hydraulic cylinder oil circuit and sealing system integrated form piston structure comprise piston (2), piston rod 1, cylinder barrel 3 and hydraulic circuit, and first hydraulic fluid port 11 and second hydraulic fluid port 12 are arranged on piston rod 1; Cancel the former spacer that has oil circuit, on piston 2, lean on an end of rod chamber to have circular groove 21 and cross recess 22, with first hydraulic fluid port 11 and second hydraulic fluid port, the 12 formation hydraulic circuits on the piston rod 1; Between piston 2 and piston rod 1, static seal 4 is installed, at piston 2 and cylinder barrel 3 connection parts guide ring 5 and seal ring 6 is installed, piston, hydraulic circuit and sealing system thereof structure in aggregates.
Through increasing circular groove 21 and cross recess 22 on the piston 2, two hydraulic fluid ports formation hydraulic circuits with on the piston rod 1 improve oil channel structures effectively and reduce the pressure loss.Utilize the spacer space that originally had oil circuit in addition, the position of the guide ring 5 that adjustment piston 2 and cylinder barrel 3 connection parts are installed, oversize piston guided bearing ring span strengthens telescopic hydraulic cylinder anti-crawl agentdefiection degree and lateral force resistance ability.
Claims (1)
1. elongated type telescopic hydraulic cylinder oil circuit and sealing system integrated form piston structure; Comprise piston (2), piston rod (1), cylinder barrel (3) and hydraulic circuit; First hydraulic fluid port (11) and second hydraulic fluid port (12) are arranged on piston rod (1); It is characterized in that: go up at piston (2) and lean on an end of rod chamber to have circular groove (21) and cross recess (22), with first hydraulic fluid port (11) and second hydraulic fluid port (12) the formation hydraulic circuit on the piston rod (1); Between piston (2) and piston rod (1), static seal (4) is installed, at piston (2) and cylinder barrel (3) connection part guide ring (5) and seal ring (6) is installed, piston, hydraulic circuit and sealing system thereof structure in aggregates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200463118U CN202468536U (en) | 2012-02-14 | 2012-02-14 | Slender telescopic hydraulic cylinder oil passage and sealing system integrated piston structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200463118U CN202468536U (en) | 2012-02-14 | 2012-02-14 | Slender telescopic hydraulic cylinder oil passage and sealing system integrated piston structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202468536U true CN202468536U (en) | 2012-10-03 |
Family
ID=46916696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200463118U Expired - Lifetime CN202468536U (en) | 2012-02-14 | 2012-02-14 | Slender telescopic hydraulic cylinder oil passage and sealing system integrated piston structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202468536U (en) |
-
2012
- 2012-02-14 CN CN2012200463118U patent/CN202468536U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |