CN2718298Y - Hydraulic press fast cylinder for warm and cold extrusion - Google Patents
Hydraulic press fast cylinder for warm and cold extrusion Download PDFInfo
- Publication number
- CN2718298Y CN2718298Y CN 200420029234 CN200420029234U CN2718298Y CN 2718298 Y CN2718298 Y CN 2718298Y CN 200420029234 CN200420029234 CN 200420029234 CN 200420029234 U CN200420029234 U CN 200420029234U CN 2718298 Y CN2718298 Y CN 2718298Y
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- CN
- China
- Prior art keywords
- piston
- small plunger
- cylinder
- cylinder body
- hydraulic press
- 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 - Fee Related
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Abstract
The utility model provides a hydraulic press fast cylinder for warm and cold extrusion, which is chracterized in that: a piston moving up and down is arranged in a cylinder body; the bottom end of the cylinder body is provided with an actuator port and a liquid filled port; the lateral surface of the cylinder body is provided with a piston return port; the center of the cylinder body is also provided with a small plunger piston; the center of the upper part of the piston is also correspondingly provided with a small plunger piston cavity matched with the small plunger piston; the upper end of the small plunger piston is also provided with an oil inlet accessing to the small plunger piston cavity; the small plunger piston cavity is utilized to realize the rapid descending of the piston; high flow rate oil pump and liquid filling valve are removed, which causes the structure of the complete machine to be simplified; in addition, the hydraulic press fast cylinder for warm and cold extrusion has the advantages of simple structure and cost reduction.
Description
Technical field
The utility model relates to a kind of oil hydraulic cylinder that is used for hydraulic press, especially a kind of quick cylinder of warm cold extrusion hydraulic press that is used for.
Background technique
Present known hydraulic press is equipped with liquid-filling valve (this valve links to each other with surge-tank) in the bottom of master cylinder when realizing requiring fast, also be connected with control valve and pump group on liquid-filling valve.When whole hydraulic press quick when descending master cylinder need liquid-filling valve be filled fluid, therefore need the liquid-filling valve and the oil pump of big flow, the manufacture cost of its master cylinder is also very high, this just makes hydraulic press complex structure and huge.
Summary of the invention
The utility model for solve the technical problem that exists in the known technology provide a kind of simple in structure, cost is low relatively is used for the quick cylinder of warm cold extrusion hydraulic press.
The technological scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
A kind of quick cylinder of warm cold extrusion hydraulic press that is used for, by the cylinder body that is installed in the hydraulic press upper beam, be installed in the piston in the cylinder body, be installed in the cylinder mouth guide pin bushing of cylinder body lower end mouth and the flange and the screw of fastening cylinder mouth guide pin bushing, be positioned at the actuator port that leads to piston upper chamber and the topping up hydraulic fluid port of cylinder base, and the backhaul hydraulic fluid port that leads to the piston cavity of resorption that is positioned at side of cylinder block is formed, described cylinder base central position also is shaped on center hole, be fixed with a small plunger in the center hole, the corresponding small plunger in the central upper portion position of described piston also is shaped on the small plunger chamber of coupling, and the upper end of small plunger also is shaped on the filler opening that leads to the small plunger chamber.
Advantage and the good effect that the utlity model has are: owing to add a small plunger in cylinder base, be shaped on the small plunger chamber of coupling in piston top correspondence, also be shaped on the filler opening that leads to the small plunger chamber on the small plunger, like this when the time to small plunger filler opening incoming pressure oil, can realize the descending fast of piston, thereby do not need the oil pump of big flow and liquid-filling valve (because of area reduces, so liquid-filling valve also reduces), complete machine structure is greatly simplified, and the utility model also has advantage simple in structure, that cost is low in addition.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1, the piston 6 that moves up and down is installed in the cylinder body 5.Between piston upper end and the cylinder base is piston upper chamber 11, is piston cavity of resorption 12 between piston side annular shoulder and the inboard wall of cylinder block.The lower end mouth of cylinder body is equipped with the method dish 3 and the screw 2 of cylinder mouth guide pin bushing 1 and stationary cylinder mouth guide pin bushing thereof.The cylinder body upper end is shaped on actuator port 7 and the topping up hydraulic fluid port 10 that leads to piston upper chamber, and cylinder body lower end outer side surface is shaped on the backhaul hydraulic fluid port 4 that leads to the piston cavity of resorption.Descending fast in order to realize piston, be fixed with small plunger 8 at the cylinder base center, the central position correspondence on piston top is shaped on the small plunger chamber 13 with the small plunger coupling.The upper end of small plunger also is shaped on the filler opening 9 that leads to the small plunger chamber.
Working principle:
Piston is quick when descending, and pressure oil is from filler opening 9 oil-feeds of small plunger, and the topping up hydraulic fluid port 10 of cylinder body is opened, to the piston upper chamber repairing.
Behind the piston contact workpiece, oil pressure raises, and the topping up hydraulic fluid port is closed, and high pressure oil enters piston upper chamber 11 through actuator port 7, changes low speed, working stroke that thrust is big this moment over to.
When backhaul hydraulic fluid port 4 enters pressure oil, when the topping up hydraulic fluid port was opened, piston was return, and the oil of piston upper chamber is discharged from the topping up hydraulic fluid port.
Claims (1)
1. one kind is used for the quick cylinder of warm cold extrusion hydraulic press, by the cylinder body that is installed in the hydraulic press upper beam, be installed in the piston in the cylinder body, be installed in the cylinder mouth guide pin bushing of cylinder body lower end mouth and the flange and the screw of fastening cylinder mouth guide pin bushing, be positioned at the actuator port that leads to piston upper chamber and the topping up hydraulic fluid port of cylinder base, and the backhaul hydraulic fluid port that leads to the piston cavity of resorption that is positioned at side of cylinder block is formed, it is characterized in that: described cylinder base central position also is shaped on center hole, be fixed with a small plunger in the center hole, the corresponding small plunger in the central upper portion position of described piston also is shaped on the small plunger chamber of coupling, and the upper end of small plunger also is shaped on the filler opening that leads to the small plunger chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420029234 CN2718298Y (en) | 2004-06-28 | 2004-06-28 | Hydraulic press fast cylinder for warm and cold extrusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420029234 CN2718298Y (en) | 2004-06-28 | 2004-06-28 | Hydraulic press fast cylinder for warm and cold extrusion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2718298Y true CN2718298Y (en) | 2005-08-17 |
Family
ID=34892880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420029234 Expired - Fee Related CN2718298Y (en) | 2004-06-28 | 2004-06-28 | Hydraulic press fast cylinder for warm and cold extrusion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2718298Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900726A (en) * | 2012-11-07 | 2013-01-30 | 南通锻压设备股份有限公司 | Speed-increasing cylinder device |
| CN105485086A (en) * | 2016-01-14 | 2016-04-13 | 徐州奥博机械科技有限公司 | Multi-cavity fast hydraulic oil cylinder |
| CN107355447A (en) * | 2017-09-04 | 2017-11-17 | 朱勉学 | A kind of pressurizing cylinder and superelevation presser blade hydraulic press |
| CN107364165A (en) * | 2017-07-03 | 2017-11-21 | 江苏国力锻压机床有限公司 | A kind of hydraulic press for possessing buffering and sliding block weight balancing |
| 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 |
| CN111823632A (en) * | 2020-02-24 | 2020-10-27 | 中国矿业大学(北京) | Press forming device and press forming method for cup-shaped powder product |
-
2004
- 2004-06-28 CN CN 200420029234 patent/CN2718298Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900726A (en) * | 2012-11-07 | 2013-01-30 | 南通锻压设备股份有限公司 | Speed-increasing cylinder device |
| CN105485086A (en) * | 2016-01-14 | 2016-04-13 | 徐州奥博机械科技有限公司 | Multi-cavity fast hydraulic oil cylinder |
| CN107364165A (en) * | 2017-07-03 | 2017-11-21 | 江苏国力锻压机床有限公司 | A kind of hydraulic press for possessing buffering and sliding block weight balancing |
| CN107364165B (en) * | 2017-07-03 | 2020-02-07 | 江苏国力锻压机床有限公司 | Hydraulic machine with buffering and slider weight balancing functions |
| CN107355447A (en) * | 2017-09-04 | 2017-11-17 | 朱勉学 | A kind of pressurizing cylinder and superelevation presser blade hydraulic press |
| 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 |
| CN111823632A (en) * | 2020-02-24 | 2020-10-27 | 中国矿业大学(北京) | Press forming device and press forming method for cup-shaped powder product |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |