CN202215529U - Novel press oil cylinder - Google Patents
Novel press oil cylinder Download PDFInfo
- Publication number
- CN202215529U CN202215529U CN2011203653181U CN201120365318U CN202215529U CN 202215529 U CN202215529 U CN 202215529U CN 2011203653181 U CN2011203653181 U CN 2011203653181U CN 201120365318 U CN201120365318 U CN 201120365318U CN 202215529 U CN202215529 U CN 202215529U
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- rodless cavity
- cylinder
- oilhole
- rod chamber
- rod
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Abstract
The utility model discloses a novel press oil cylinder belonging to the technical field of press attachment parts. With the adoption of the novel press oil cylinder, the occupied space is reduced, the manufacturing cost is reduced, and the control is convenient. The novel press oil cylinder comprises a tubular cylinder barrel, wherein a cylinder tail and a first sealing gland are arranged at the pipe orifices at either of the two ends of the cylinder barrel, a large piston and a large piston rod are arranged inside the cylinder barrel, a gap exists between the large piston and the cylinder tail so as to form a first rodless cavity, a first rodless cavity oil hole is arranged on the wall of the cylinder tail, the first rodless cavity oil hole is communicated with the outside through the first rodless cavity oil hole, the large piston rod is of a tubular structure, a sealing end cover and a second sealing gland are arranged at the pipe orifices at either of the two ends of the large piston rod, a small piston and a small piston rod are arranged in the tube of the large piston rod, a gap exists between the small piston and the sealing end cover so as to form a second rodless cavity, a second rodless cavity oil hole is arranged on the wall of the cylinder tail, a third rodless cavity oil hole is arranged in the small piston rod, and the second rodless cavity oil hole is communicated with the outside through the third rodless cavity oil hole and the second rodless cavity oil hole.
Description
Technical field
The utility model relates to the press machine component technology field of attaching troops to a unit, and particularly relates to a kind of novel press machine oil cylinder.
Background technique
As everyone knows, press machine is that a kind of slide block that can make is reciprocating, and applies the machine of certain pressure by required direction to mould, has characteristics such as of many uses, manufacturing efficiency height; Press machine can be widely used in technologies such as cut-out, punching, blanking, bending, riveted and shaping; Make metal generation plastic deformation and fracture be processed into part through metal blank being applied powerful pressure; And oil cylinder is the power unit in the press machine; Press machine oil cylinder of the prior art comprises main cylinder pressure and auxiliary cylinder; And the above press machine of 150T is requiring F.F., rewind down and at a slow speed in the loading procedure, is all adopting independent main cylinder pressure and auxiliary cylinder to control respectively and realize in the existing technology; Certainly will take up room greatly by the build-up of pressure machine like this, manufacture cost is high, the waste of main compressing cylinder inner space; The occasion of particularly switching at the large and small tonnage of needs, system pressure is difficult to control.
The model utility content
For solving the problems of the technologies described above, the utility model provides a kind of minimizing space hold, reduces manufacture cost, controls novel pressure Oil cylinder easily.
The novel pressure Oil cylinder of the utility model comprises the tubulose cylinder barrel, and is provided with the cylinder tail and first sealing gland respectively at mouth of pipe place, the two ends of cylinder barrel; In the pipe of cylinder barrel, be provided with big piston and big piston bar, an end of big piston bar is connected with big piston, and the big piston bar the other end passes first sealing gland and extend out to the cylinder barrel outside; Have the gap between said big piston and the cylinder tail, form first rodless cavity, and cylinder tail wall is provided with the first rodless cavity oilhole; Said first rodless cavity communicates with the external world through the first rodless cavity oilhole, and said big piston bar is a tubular structure, and is provided with the end cover and second sealing gland respectively at mouth of pipe place, the two ends of big piston bar; In the pipe of big piston bar, be provided with small piston and small piston rod; One end of small piston rod is connected with small piston, and the other end of small piston rod passes second sealing gland and fixes with the cylinder tail, has the gap between said small piston and end cover; Form second rodless cavity; And cylinder tail wall is provided with the second rodless cavity oilhole, and the set inside of said small piston rod has the 3rd rodless cavity oilhole, and said second rodless cavity communicates with the external world through the 3rd rodless cavity oilhole and the second rodless cavity oilhole successively.
There is the gap in the novel pressure Oil cylinder of the utility model between the said big piston and first sealing gland, forms first rod chamber, and the cylinder barrel wall is provided with the first rod chamber oilhole, and said first rod chamber communicates with the external world through the first rod chamber oilhole.
The novel pressure Oil cylinder of the utility model; There is the gap between the said small piston and second sealing gland; Form second rod chamber; And cylinder tail wall is provided with the second rod chamber oilhole, and said small piston rod set inside has the 3rd rod chamber oilhole, and said second rod chamber communicates with the external world through the 3rd rod chamber oilhole and the second rod chamber oilhole successively.
The novel pressure Oil cylinder of the utility model is provided with the piston rod guide sleeve between the said cylinder barrel and first sealing gland.
The novel pressure Oil cylinder of the utility model, said small piston rod and cylinder tail are through screw together.
Compared with prior art the beneficial effect of the utility model is: the big piston bar is arranged to tubular structure; And be provided with the end cover and second sealing gland respectively at mouth of pipe place, the two ends of big piston bar; In the pipe of big piston bar, be provided with small piston and small piston rod; One end of small piston rod is connected with small piston, and the other end of small piston rod passes second sealing gland and fixes with the cylinder tail, has the gap between small piston and end cover; Form second rodless cavity; And cylinder tail wall is provided with the second rodless cavity oilhole, and the set inside of small piston rod has the 3rd rodless cavity oilhole, and second rodless cavity communicates with the external world through the 3rd rodless cavity oilhole and the second rodless cavity oilhole successively; Like this, can save auxiliary cylinder of the prior art, but with the cylinder barrel of big piston bar as auxiliary cylinder; Thereby be provided with fully and utilize; And then saved the space, reduced manufacture cost, the more effective difficult problem of system pressure control when having solved big or small tonnage and switching.
Description of drawings
Fig. 1 is the sectional view of the utility model novel pressure Oil cylinder.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the embodiment of the utility model is described in further detail.Following examples are used to explain the utility model, but are not used for limiting the scope of the utility model.
As shown in Figure 1, the novel pressure Oil cylinder of the utility model comprises tubulose cylinder barrel 1; And be provided with the cylinder tail 2 and first sealing gland 3 respectively at mouth of pipe place, the two ends of cylinder barrel 1, and in the pipe of cylinder barrel 1, being provided with big piston 4 and big piston bar 5, an end of big piston bar 5 is connected with big piston 4; Big piston bar 5 the other ends pass first sealing gland 3 and extend out to cylinder barrel 1 outside, have the gap between big piston 4 and the cylinder tail 2, form first rodless cavity 6; And cylinder tail 2 walls are provided with the first rodless cavity oilhole, 7, the first rodless cavities 6 and communicate with the external world through the first rodless cavity oilhole 7, and big piston bar 5 is a tubular structure; And be provided with the end cover 8 and second sealing gland 9 respectively at mouth of pipe place, the two ends of big piston bar 5, and in the pipe of big piston bar 5, being provided with small piston 10 and small piston rod 11, an end of small piston rod 11 is connected with small piston 10; The other end of small piston rod 11 passes second sealing gland 9 and fixing with cylinder tail 2, and there are the gap in 8 of small piston 10 and end covers, form second rodless cavity 12; And cylinder tail 2 walls are provided with the second rodless cavity oilhole 13; The set inside of small piston rod 5 has the 3rd rodless cavity oilhole 14, the second rodless cavities 12 to communicate with the external world through the 3rd rodless cavity oilhole 14 and the second rodless cavity oilhole 13 successively, like this; Can save auxiliary cylinder of the prior art; But with the cylinder barrel of big piston bar as auxiliary cylinder, thereby be provided with fully and utilize, and then saved the space; Reduced manufacture cost, the more effective difficult problem of system pressure control when having solved big or small tonnage and switching.
The novel pressure Oil cylinder of the utility model; There is the gap between the big piston 4 and first sealing gland 3; Form first rod chamber 15, and cylinder barrel 1 wall is provided with the first rod chamber oilhole, 16, the first rod chambers 15 and communicates with the external world through the first rod chamber oilhole 16; Like this, can control the motion of big piston bar more accurately and conveniently.
The novel pressure Oil cylinder of the utility model; Have the gap between the small piston 10 and second sealing gland 9, form second rod chamber 17, and cylinder tail 2 walls are provided with the second rod chamber oilhole 18; Small piston rod 11 set inside have the 3rd rod chamber oilhole 19; Second rod chamber 17 communicates with the external world through the 3rd rod chamber oilhole 19 and the second rod chamber oilhole 18 successively, like this, can control the motion of big piston bar more accurately and conveniently.
The novel pressure Oil cylinder of the utility model is provided with piston rod guide sleeve 20 between the cylinder barrel 1 and first sealing gland 3.
The novel pressure Oil cylinder of the utility model, small piston rod 11 is fixed together through screw 21 with cylinder tail 2.
The working procedure of the novel pressure Oil cylinder of the utility model is roughly following, at first, respectively the first rodless cavity oilhole 7, the first rod chamber oilhole, 16, the second rodless cavity oilholes 13 and the second rod chamber oilhole 18 is communicated with fuel tank; When big piston bar 5 need stretch out fast; 13 oil-feeds of the second rodless cavity oilhole, the second rod chamber oilhole 18 are to the fuel tank oil extraction, 7 oil-feeds of the first rodless cavity oilhole; The first rod chamber oilhole 16 needs very little flow can realize that the big piston bar stretches out fast to the fuel tank oil extraction; When the big piston bar need be return fast, the second rod chamber oilhole oil-feed, the second rodless cavity oilhole is to the fuel tank oil extraction, the first rod chamber oilhole oil-feed, the first rodless cavity oilhole is to the fuel tank oil extraction, needs very little flow can realize that the big piston bar returns fast; When the little tonnage of needs loads, only need the input pressure of control second rodless cavity, can realize that little tonnage loads; When the needs large-tonnage loads, only need the input pressure of control first rodless cavity, can realize that large-tonnage loads; When large-tonnage ouput force and the switching of little tonnage ouput force, system pressure does not need too big variation; Under the situation of only so just having avoided loading with independent first rod chamber and first rodless cavity, when the little tonnage ouput force of needs, must be the system pressure accent very low, just can meet the demands; And very low system pressure is stable restive.
The above only is the preferred implementation of the utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model know-why, can also make some improvement and modification, these improvement and modification also should be regarded as the protection domain of the utility model.
Claims (5)
1. a novel pressure Oil cylinder comprises the tubulose cylinder barrel, and is provided with the cylinder tail and first sealing gland respectively at mouth of pipe place, the two ends of cylinder barrel; In the pipe of cylinder barrel, be provided with big piston and big piston bar, an end of big piston bar is connected with big piston, and the big piston bar the other end passes first sealing gland and extend out to the cylinder barrel outside; Have the gap between said big piston and the cylinder tail, form first rodless cavity, and cylinder tail wall is provided with the first rodless cavity oilhole; Said first rodless cavity communicates with the external world through the first rodless cavity oilhole, it is characterized in that: said big piston bar is a tubular structure, and is provided with the end cover and second sealing gland respectively at mouth of pipe place, the two ends of big piston bar; In the pipe of big piston bar, be provided with small piston and small piston rod; One end of small piston rod is connected with small piston, and the other end of small piston rod passes second sealing gland and fixes with the cylinder tail, has the gap between said small piston and end cover; Form second rodless cavity; And cylinder tail wall is provided with the second rodless cavity oilhole, and the set inside of said small piston rod has the 3rd rodless cavity oilhole, and said second rodless cavity communicates with the external world through the 3rd rodless cavity oilhole and the second rodless cavity oilhole successively.
2. novel pressure Oil cylinder as claimed in claim 1; It is characterized in that: have the gap between the said big piston and first sealing gland; Form first rod chamber, and the cylinder barrel wall is provided with the first rod chamber oilhole, said first rod chamber communicates with the external world through the first rod chamber oilhole.
3. novel pressure Oil cylinder as claimed in claim 2; It is characterized in that; Have the gap between the said small piston and second sealing gland, form second rod chamber, and cylinder tail wall is provided with the second rod chamber oilhole; Said small piston rod set inside has the 3rd rod chamber oilhole, and said second rod chamber communicates with the external world through the 3rd rod chamber oilhole and the second rod chamber oilhole successively.
4. novel pressure Oil cylinder as claimed in claim 1 is characterized in that, is provided with the piston rod guide sleeve between the said cylinder barrel and first sealing gland.
5. novel pressure Oil cylinder as claimed in claim 1 is characterized in that, said small piston rod and cylinder tail are through screw together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203653181U CN202215529U (en) | 2011-09-28 | 2011-09-28 | Novel press oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203653181U CN202215529U (en) | 2011-09-28 | 2011-09-28 | Novel press oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202215529U true CN202215529U (en) | 2012-05-09 |
Family
ID=46014787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203653181U Expired - Fee Related CN202215529U (en) | 2011-09-28 | 2011-09-28 | Novel press oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202215529U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106903921A (en) * | 2017-04-17 | 2017-06-30 | 佛山市恒力泰机械有限公司 | A kind of hydraulic press and its control method for being provided with stage variable pressure oil cylinder |
| CN108397440A (en) * | 2018-04-11 | 2018-08-14 | 江阴市军炫智能装备有限公司 | A kind of fast unit for medium-and-large-sized hydraulic pressure metal bits cuber |
-
2011
- 2011-09-28 CN CN2011203653181U patent/CN202215529U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106903921A (en) * | 2017-04-17 | 2017-06-30 | 佛山市恒力泰机械有限公司 | A kind of hydraulic press and its control method for being provided with stage variable pressure oil cylinder |
| CN106903921B (en) * | 2017-04-17 | 2019-07-23 | 佛山市恒力泰机械有限公司 | A kind of hydraulic press and its control method equipped with stage variable pressure cylinder |
| CN108397440A (en) * | 2018-04-11 | 2018-08-14 | 江阴市军炫智能装备有限公司 | A kind of fast unit for medium-and-large-sized hydraulic pressure metal bits cuber |
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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: 20120509 Termination date: 20140928 |
|
| EXPY | Termination of patent right or utility model |