CN202531524U - Hydraulic system for hydraulic die forging hammer - Google Patents
Hydraulic system for hydraulic die forging hammer Download PDFInfo
- Publication number
- CN202531524U CN202531524U CN2012201890685U CN201220189068U CN202531524U CN 202531524 U CN202531524 U CN 202531524U CN 2012201890685 U CN2012201890685 U CN 2012201890685U CN 201220189068 U CN201220189068 U CN 201220189068U CN 202531524 U CN202531524 U CN 202531524U
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- control valve
- hydraulic
- valve
- main control
- proportional
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Abstract
The utility model relates to a hydraulic system for a hydraulic die forging hammer. The hydraulic system comprises a proportional control valve, a main control valve, a striking hydraulic cylinder, a hydraulic pump and an oil tank, wherein the proportional control valve is connected with the hydraulic control end of the main control valve to control the opening and the closing of the main control valve; one end of the main control valve is connected with the hydraulic cylinder; the other end of the main control valve is connected with a rehydration cylinder and an energy storage device through oil ways; the main control valve is directly connected with the proportional control valve and a main oil way at the same time; the proportional control valve is a three-position four-way proportional reversing valve; the median function adopts a Y-shaped function; the main control valve is a three-position four-way sliding valve type reversing valve; and the median function adopts an O-shaped function. According to the hydraulic system provided by the utility model, the main control valve is controlled by the proportional valve, so that the opening time and the closing time of the main valve can be controlled accurately; therefore, the control precision of the striking energy is improved, the working noise and vibration of equipment are reduced, and the quality of forging pieces are improved; the proportional valve can be directly controlled through systems such as a PLC (programmable logic controller), so that the digital control is facilitated; and moreover, a safety valve, an overflow unloading valve, the energy storage device and the like are arranged in the system, so that the system works safely and reliably, and the oil pressure fluctuation of the system are reduced.
Description
Technical field
The utility model relates to hydraulic system, is specifically related to realize the used hydraulic system of hydraulic die forging hammer Digital Control equipment, belongs to metal forming and forges the hydraulic pressure equipment technical field.
Background technique
Hydraulic die forging hammer is the widely used forging equipment of a kind of metal forming technical field.Domestic at present; Though common hydraulic die forging hammer hydraulic system has adopted fully hydraulic driven, the main control valve opening and closing time that is used to control the oil hydraulic cylinder blow energy is difficult to realize accurate control, causes blow energy redundant; The not only many consumed energies of unnecessary strike; And influence equipment and mould because the absorbing redundant energy brings life problems, make also that simultaneously to forge in the process vibration and noise bigger, the reliable and stable work of the equipment that influences.
The model utility content
The purpose of the utility model is to the problem and shortage that exists in the existing technology, provides a kind of and can accurately control the die hammer blow energy, improves the hydraulic system of the hydraulic die forging hammer of forging quality.
The technical solution of the utility model is: a kind of hydraulic system of hydraulic die forging hammer, and comprise main control valve and hit oil hydraulic cylinder, it is characterized in that: main control valve one end links to each other with oil hydraulic cylinder, and the other end is communicated with accumulator and container for replenishing liquid through hydraulic circuit; Also comprise a proportional control valve, this proportional control valve links to each other with main control valve hydraulic control end, and the unlatching that is used to control main control valve is with closed.During strike, the position work of a main control valve left side is formed differential the connection with oil hydraulic cylinder; During backhaul, main control valve right position work, outlet links to each other with the oil hydraulic cylinder cavity of resorption, and the oil hydraulic cylinder epicoele is connected fuel tank.Main control valve directly links to each other with working connection with proportional control valve simultaneously.
Wherein, Proportional control valve is the 3-position 4-way proportional reversing valve, and the meta function adopts y-function, and filler opening is communicated with the system pressure oil circuit; Oil outlet links to each other with the hydraulic control port of main control valve, and the outlet pressure of proportional control valve and opening and closing time can adopt system's controls such as PLC.
Wherein, main control valve is the 3-position 4-way spool-type valves, and two ends are respectively equipped with Returnning spring and hydraulic control port.
The utlity model has following advantage: 1, main control valve adopts proportional valve control, can accurately control the main valve opening and closing time, thereby improve the control accuracy of blow energy, reduces equipment work noise and vibration, improves forging quality; 2, Proportional valve can directly be controlled through systems such as PLC, makes things convenient for Digital Control; 3, be designed with safety valve, overflow unloading valve and accumulator etc. in the system, make system works safe and reliable, reduce system oil pressure fluctuation.
Description of drawings
Fig. 1 is the hydraulic system principle figure of the utility model.
Among the figure: 1 is fuel tank, and 2 is oil hydraulic pump, and 3 is unloading overflow valve, and 4 is one-way valve, and 5 is accumulator, and 6 is container for replenishing liquid, and 7 is proportional control valve, and 8 is main control valve, and 9 is safety valve, and 10 is oil hydraulic cylinder, 11 safety valves, and 12 is tup.
Embodiment
Wherein, Proportional control valve 7 is the 3-position 4-way proportional reversing valve, and the meta function adopts y-function, and filler opening is communicated with the system pressure oil circuit; Oil outlet links to each other with the hydraulic control port of main control valve 8, and the outlet pressure of proportional control valve 7 and opening and closing time can adopt system's controls such as PLC.
Wherein, main control valve 8 is the 3-position 4-way spool-type valves, and the meta function adopts O type function, and two ends are respectively equipped with Returnning spring and hydraulic control port.
Claims (3)
1. the hydraulic system of a hydraulic die forging hammer comprises main control valve and hits oil hydraulic cylinder, and it is characterized in that: main control valve one end links to each other with oil hydraulic cylinder, and the other end is communicated with accumulator and container for replenishing liquid through hydraulic circuit; Also comprise a proportional control valve, this proportional control valve links to each other with main control valve hydraulic control end.
2. the hydraulic system of hydraulic die forging hammer according to claim 1; It is characterized in that: proportional control valve is the 3-position 4-way proportional reversing valve; The meta function adopts y-function; Filler opening is communicated with the system pressure oil circuit, and oil outlet links to each other with the hydraulic control port of main control valve, and the outlet pressure of proportional control valve and opening and closing time adopt the control of PLC system.
3. the hydraulic system of hydraulic die forging hammer according to claim 1, it is characterized in that: main control valve is the 3-position 4-way spool-type valves, its two ends are respectively equipped with Returnning spring and hydraulic control port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201890685U CN202531524U (en) | 2012-04-28 | 2012-04-28 | Hydraulic system for hydraulic die forging hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201890685U CN202531524U (en) | 2012-04-28 | 2012-04-28 | Hydraulic system for hydraulic die forging hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202531524U true CN202531524U (en) | 2012-11-14 |
Family
ID=47132713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201890685U Expired - Fee Related CN202531524U (en) | 2012-04-28 | 2012-04-28 | Hydraulic system for hydraulic die forging hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202531524U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103625440A (en) * | 2013-12-10 | 2014-03-12 | 三一汽车制造有限公司 | Engineering machinery |
-
2012
- 2012-04-28 CN CN2012201890685U patent/CN202531524U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103625440A (en) * | 2013-12-10 | 2014-03-12 | 三一汽车制造有限公司 | Engineering machinery |
| CN103625440B (en) * | 2013-12-10 | 2017-02-15 | 三一汽车制造有限公司 | Engineering machinery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20130428 |