CN203584955U - Four-column twice-lifting cylinder - Google Patents
Four-column twice-lifting cylinder Download PDFInfo
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- CN203584955U CN203584955U CN201320713742.XU CN201320713742U CN203584955U CN 203584955 U CN203584955 U CN 203584955U CN 201320713742 U CN201320713742 U CN 201320713742U CN 203584955 U CN203584955 U CN 203584955U
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- piston
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- piston rod
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Abstract
The utility model discloses a four-column twice-lifting cylinder comprising a cylinder body and a piston. The piston is movably arranged in the cylinder body. One end of the cylinder body is sealed through a base. The piston is located at one end of the cylinder body sealed by the base and is fixedly connected to a piston rod. The end of the piston rod far from the piston matches with the top cover. The sleeve of the piston rod is provided with a limit sleeve, and one end face of the limit sleeve contacts with one end face of the piston. An oil inlet is formed in the base, and is communicated with an oil channel in the base. The oil channel is communicated with a cavity located between the piston and base. The four-column twice-lifting cylinder is simple in structure, tightness is enhanced, bearing capacity is improved effectively, service life is prolonged effectively, the prior position of the oil inlet is changed to adapt to twice lifting operation, matching between the piston rod and the piston is tighter by arranging the limit sleeve, and the piston and the piston rod loss rarely.
Description
Technical field
The utility model relates to a kind of oil cylinder, relates in particular to a kind of four post secondary elevating rams.
Background technique
Hydraulic jack is as the executive component in Hydraulic Power Transmission System, and playing hydraulic energy transfer is that mechanical energy must act on, and its significance is self-evident, along with the development of industry is also more and more higher to the requirement of hydraulic jack, require high capacity, high-speed, maintenance rate is low, and reliability is high.And existing four post secondary elevating rams are all not enough to some extent in sealing and bearing capacity.
Summary of the invention
The purpose of this utility model is in order to solve technical problem related in background technique, and a kind of four post secondary elevating rams are provided.
The technical solution of the utility model is: a kind of four post secondary elevating rams, comprise cylinder body and piston, described piston is arranged in cylinder body actively, one end of described cylinder body is by base seal, described piston is positioned at the place, one end of the cylinder body that base seals, described piston is also fixed with piston rod, described piston rod matches with top cover away from one end of piston, be positioned at described piston rod and be arranged with stop collar outward, an end face of described stop collar contacts with an end face of piston, described base is provided with filler opening, described filler opening communicates by the oil duct being arranged in base, described oil duct communicates with the cavity between piston and base in cylinder body.
Preferred as one of the present utility model, between the exterior edge face of described cylinder body and the interior edge face of top cover, be provided with nylon washer.
Preferred as one of the present utility model, described piston is provided with a blind hole, and described piston rod inserts blind hole and is connected with piston, between described blind hole and piston rod, is placed with O-ring seals.
Preferred as one of the present utility model, on the outer peripheral surface of described piston, offer 2 grooves, 1 groove in described 2 grooves is used for placing O-ring seals, and another is for placing open type seal ring.
Preferred as one of the present utility model, between described top cover and piston rod, be provided with two seal rings.
In sum, the utlity model has following advantage:
The utility model is simple in structure, fabricating cost is low, by different Sealings is set at different parts, strengthened sealing effect, between piston, piston rod, cylinder body and top cover all parts, structure arranges rationally simultaneously, has effectively improved bearing capacity and working life, has changed the position of original filler opening to adapt to secondary lifting operation simultaneously, simultaneously stop collar be arranged so that the cooperation between piston rod and piston is more tight, be difficult for getting loose.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a preferred embodiment of the utility model.
Embodiment
Below in conjunction with accompanying drawing, with embodiment, the utility model is described in further detail.
As shown in Figure 1, a kind of four post secondary elevating rams, comprise cylinder body 1 and piston 2, described piston 2 is arranged in cylinder body 1 actively, one end of described cylinder body 1 is sealed by base 11, described piston 2 is positioned at the place, one end of the cylinder body 1 that base 11 seals, described piston 2 is also fixed with piston rod 21, described piston rod 21 matches with top cover 4 away from one end of piston 2, be positioned at the outer stop collar 6 that is arranged with of described piston rod 21, an end face of described stop collar 6 contacts with an end face of piston 2, described base 11 is provided with filler opening 51, described filler opening 51 communicates by the oil duct 52 being arranged in base 11, described oil duct 52 communicates with the cavity 53 between piston 2 and base 11 in cylinder body 1.Between the interior edge face of the exterior edge face of described cylinder body 1 and top cover 4, be provided with nylon washer 10.Described piston 2 is provided with a blind hole 22, and described piston rod 21 inserts blind hole 22 and is connected with piston 2, between described blind hole 22 and piston rod 21, is placed with O-ring seals 7.On the outer peripheral surface of described piston 2, offer 2 grooves, 1 groove in described 2 grooves is used for placing O-ring seals 6, and another is for placing open type seal ring 8.Between described top cover 4 and piston rod 21, be provided with two seal rings 9.
More than explanation is only to explanation of the present utility model, make those of ordinary skills' can completely implement this programme, but be not to restriction of the present utility model, those skilled in the art are reading after this specification and can to the present embodiment, make the modification that there is no creative contribution as required, and these are all not creative modifications.But as long as within the scope of claim of the present utility model, be all subject to the protection of Patent Law.
Claims (5)
1. a post secondary elevating ram, it is characterized in that: comprise cylinder body (1) and piston (2), described piston (2) is arranged in cylinder body (1) actively, one end of described cylinder body (1) is sealed by base (11), described piston (2) is positioned at the place, one end of the cylinder body (1) that base (11) seals, described piston (2) is also fixed with piston rod (21), described piston rod (21) matches with top cover (4) away from one end of piston (2), be positioned at the outer stop collar (6) that is arranged with of described piston rod (21), an end face of described stop collar (6) contacts with an end face of piston (2), described base (11) is provided with filler opening (51), described filler opening (51) communicates by the oil duct (52) being arranged in base (11), described oil duct (52) communicates with the cavity (53) being positioned in cylinder body (1) between piston (2) and base (11).
2. a kind of four post secondary elevating rams according to claim 1, is characterized in that: between the exterior edge face of described cylinder body (1) and the interior edge face of top cover (4), be provided with nylon washer (10).
3. a kind of four post secondary elevating rams according to claim 1, it is characterized in that: described piston (2) is provided with a blind hole (22), described piston rod (21) inserts blind hole (22) and is connected with piston (2), between described blind hole (22) and piston rod (21), is placed with O-ring seals (7).
4. a kind of four post secondary elevating rams according to claim 1 and 2, it is characterized in that: on the outer peripheral surface of described piston (2), offer 2 grooves, 1 groove in described 2 grooves is used for placing O-ring seals (6), and another is for placing open type seal ring (8).
5. a kind of four post secondary elevating rams according to claim 1, is characterized in that: between described top cover (4) and piston rod (21), be provided with two seal rings (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320713742.XU CN203584955U (en) | 2013-11-07 | 2013-11-07 | Four-column twice-lifting cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320713742.XU CN203584955U (en) | 2013-11-07 | 2013-11-07 | Four-column twice-lifting cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203584955U true CN203584955U (en) | 2014-05-07 |
Family
ID=50582885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320713742.XU Expired - Fee Related CN203584955U (en) | 2013-11-07 | 2013-11-07 | Four-column twice-lifting cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203584955U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980140A (en) * | 2018-07-27 | 2018-12-11 | 江苏恒立液压股份有限公司 | Oil cylinder with gear racks and flat car with it |
| CN110714748A (en) * | 2019-10-22 | 2020-01-21 | 中国矿业大学 | Pressure stabilizing device of rock drilling and breaking experiment machine |
-
2013
- 2013-11-07 CN CN201320713742.XU patent/CN203584955U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980140A (en) * | 2018-07-27 | 2018-12-11 | 江苏恒立液压股份有限公司 | Oil cylinder with gear racks and flat car with it |
| CN110714748A (en) * | 2019-10-22 | 2020-01-21 | 中国矿业大学 | Pressure stabilizing device of rock drilling and breaking experiment machine |
| CN110714748B (en) * | 2019-10-22 | 2021-07-23 | 中国矿业大学 | Pressure stabilizing device of rock drilling and breaking experiment machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20171107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |