CN201330762Y - Pneumatic-hydraulic pressurizing cylinder - Google Patents
Pneumatic-hydraulic pressurizing cylinder Download PDFInfo
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- CN201330762Y CN201330762Y CNU2008201844360U CN200820184436U CN201330762Y CN 201330762 Y CN201330762 Y CN 201330762Y CN U2008201844360 U CNU2008201844360 U CN U2008201844360U CN 200820184436 U CN200820184436 U CN 200820184436U CN 201330762 Y CN201330762 Y CN 201330762Y
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Abstract
Disclosed is a pneumatic-hydraulic pressurizing cylinder, which is characterized in that a working cylinder piston rod extending out of an intensifying type pneumatic-hydraulic pressurizing cylinder is inverted, a pressurizing cylinder and a working cylinder are in offsetting assembly and installation, a sub-oil cylinder is disposed on the pressurizing cylinder simultaneously, mutually communicated high-pressure oil passages are positioned between one side of the working cylinder with a piston rod inside and the sub-oil cylinder, mutually communicated low-pressure oil passages are positioned between the sub-oil cylinder and a main cylinder which is a pre-pressing cylinder, the low-pressure oil passages pass through the middle segment of a piston rod sealing hole on a front end cover of the pressurizing cylinder, the low-pressure oil passages are open when the piston rod of the pressurizing cylinder retracts, and the low-pressure oil passages are closed when the piston rod of the pressurizing cylinder extends. Firstly, air enters in an air receiving opening of the main cylinder, the air is discharged from an air receiving opening on one side of the working cylinder without a piston rod, compressed air pushes normal pressure oil to one side of the working cylinder with the piston rod through the low-pressure oil passages, the sub-oil cylinder and the high-pressure oil passages, the compressed air pushes the piston rod of the working cylinder to realize low-pressure retraction, and pre-pressing process is finished. Further, the piston rod extends when the pressurizing cylinder is pushed by the compressed air, thereby firstly closing the low-pressure oil passages between the sub-oil cylinder and the main cylinder, then extruding closed low-pressure oil inside the sub-oil cylinder, gradually raising the pressure of the closed low-pressure oil.
Description
Affiliated technical field
The utility model relates to a kind of pneumohydraulic pressure-cylinder, especially carries out the pneumohydraulic pressure-cylinder of reinforcement in piston rod retraction process.
Background technique
At present, known pneumohydraulic pressure-cylinder is made up of oil cylinder (being pre-air cylinder), pressurized cylinder and working cylinder, between a side of piston-rodless and the oil cylinder hydraulic oil channel that is interconnected is arranged in the working cylinder, this passage is through the stage casing, rod seal hole on the pressurized cylinder front cover, this passage is open-minded when the retraction of pressurized cylinder piston rod, this pathway closure when the pressurized cylinder piston rod stretches out.At first pressurized air is pushed into in-oil cylinder normal pressure oil one side of piston-rodless in the working cylinder via passage, and the cylinder piston rod low pressure that pushes the work forward is stretched out, finish the precompressed stroke, then pressurized cylinder under the compressed-air actuated promotion before this with the passage between its piston rod sealing oil cylinder and working cylinder, then push the low pressure oil of working cylinder inner sealing and improve its pressure gradually, thereby the cylinder piston rod that pushes the work forward overcomes the heavy duty high pressure to be stretched out, and finishes the reinforcement stroke.It is characterized in that stretching out the process reinforcement at the working cylinder piston rod, the retraction process is reinforcement not.
Summary of the invention
Can't satisfy the working condition requirement of some needs at piston rod retraction process reinforcement in order to overcome existing pneumohydraulic pressure-cylinder, the utility model provides a kind of pneumohydraulic pressure-cylinder, can realize piston rod retraction process reinforcement.
The technological scheme that its technical problem that solves the utility model adopts is: will have the working cylinder piston rod that stretches out the force booster type pneumohydraulic pressure-cylinder now and be inverted, and with pressurized cylinder and working cylinder biasing assembling, simultaneously to auxiliary oil cylinder of pressurized cylinder configuration, have in the working cylinder between side of piston rod and the auxiliary oil cylinder high-pressure oil passage that is interconnected is arranged, between auxiliary oil cylinder and the master cylinder (being pre-air cylinder) the low pressure oil passage that is interconnected is arranged, this low pressure oil passage is through the stage casing, rod seal hole on the pressurized cylinder front cover, the low pressure oil passage is open-minded when the retraction of pressurized cylinder piston rod, low pressure oil pathway closure when the pressurized cylinder piston rod stretches out.At first master cylinder connects the gas port air inlet, simultaneously working cylinder piston-rodless one side connects the gas port exhaust, pressurized air with the normal pressure oil in the master cylinder via the low pressure oil passage, auxiliary oil cylinder and high-pressure oil passage are pushed into the side that piston rod is arranged in the working cylinder, and the cylinder piston rod that pushes the work forward is low is compressed into, finish precompression and go into stroke, pressurized cylinder stretches out at compressed-air actuated promotion lower piston rod then, sealed the low pressure oil passage between auxiliary oil cylinder and the master cylinder before this, then push the low pressure oil of auxiliary oil cylinder inner sealing and improve its pressure gradually, be pushed into the side that piston rod is arranged in the working cylinder via high-pressure oil passage again, thereby the cylinder piston rod that pushes the work forward overcomes the retraction of heavy duty high pressure, finishes reinforcement retraction stroke.During backhaul (being that piston rod stretches out), the retraction of pressurized cylinder piston rod, have the hydraulic oil of piston rod one side to get back in the auxiliary oil cylinder via high-pressure oil passage in the working cylinder, finish and subtract the power backhaul, the pressurized cylinder piston rod continues retraction, low pressure oil passage 8 is open-minded, this moment working cylinder piston-rodless one side connect the gas port air inlet, master cylinder connects gas port exhaust simultaneously, will have the normal pressure oil of piston rod one side to squeeze back master cylinder in the working cylinder, the working cylinder piston rod continues low pressure and stretches out, and finishes the air pressure backhaul.Owing to had more the part area that piston rod occupies, the backhaul pressure of this retraction force booster type pneumohydraulic pressure-cylinder is slightly larger than the existing backhaul pressure that stretches out the force booster type pneumohydraulic pressure-cylinder.
The beneficial effects of the utility model are: simplify the structure of pressure facility, reduce manufacture cost, and can improve backhaul pressure.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural relation schematic representation of the present utility model.
Fig. 2 is second embodiment's of the utility model a structural relation schematic representation.
1. working cylinders connect gas port among the figure, 2. working cylinder piston, and 3. working cylinder piston rod, 4. master cylinder connects gas port, 5. the pressurized cylinder forward connects gas port, 6. pressurized cylinder piston rod, and 7. pressurized cylinder oppositely connects gas port, 8. the low pressure oil passage, 9. high-pressure oil passage, 10. auxiliary oil cylinder, 11. master cylinders.
Embodiment
In Fig. 1, at first master cylinder connects gas port 4 air inlets, working cylinder connects gas port 1 exhaust, pressurized air is clamp-oned working cylinder inner piston rod 3 one sides with the hydraulic oil in the master cylinder 11 via low pressure oil passage 8, auxiliary oil cylinder 10 and high-pressure oil passage 9, air pressure acts on pulling working cylinder piston rod 3 quick retractions on the working cylinder piston 2, finishes the precompressed stroke; Then the pressurized cylinder forward connects gas port 5 air inlets, pressurized cylinder oppositely connects gas port 7 exhausts, pressurized air promotes pressurized cylinder piston rod 6 and stretches out, at first low pressure oil passage 8 is shut, pressurized cylinder piston rod 6 continues to stretch into auxiliary oil cylinder 10 then, and the hydraulic oil that pressure improves gradually clamp-oned working cylinder inner piston rod 3 one sides via high-pressure oil passage 9, high pressure oil pressure acts on and makes working cylinder piston rod 3 continue retractions on the working cylinder piston 2, finishes reinforcement retraction stroke.During backhaul, pressurized air oppositely connects gas port 7 and working cylinder from pressurized cylinder and connects gas port 1 and be pressed into, while pressurized cylinder forward connects gas port 5 and master cylinder connects gas port 4 exhausts, 6 retractions of pressurized cylinder piston rod, the hydraulic oil of working cylinder inner piston rod 3 one sides is got back in the auxiliary oil cylinder 10 via high-pressure oil passage 9, after finishing the supercharging backhaul, pressurized cylinder piston rod 6 continues retraction, low pressure oil passage 8 is open-minded, the hydraulic oil of working cylinder inner piston rod 3 one sides is got back in the master cylinder 11 via low pressure oil passage 8 again, thereby finish precompressed retraction backhaul, pressurized air acts on piston-rodless one side in the working cylinder during precompressed backhaul, and backhaul pressure is greater than the common force booster type pneumohydraulic pressure-cylinder that stretches out.
In Fig. 2, master cylinder, pressurized cylinder and working cylinder are assembled side by side, the embodiment of working principle and front is in full accord, and such layout can reduce setting height(from bottom), but the reinforcement stroke is less relatively.
Claims (2)
1. pneumohydraulic pressure-cylinder is characterized in that: pressurized cylinder and working cylinder biasing assembling, and be provided with auxiliary oil cylinder have in the working cylinder between side of piston rod and the auxiliary oil cylinder high-pressure oil passage that is interconnected are arranged.
2. pneumohydraulic pressure-cylinder according to claim 1 is characterized in that: the low pressure oil passage that is interconnected is arranged between auxiliary oil cylinder and the master cylinder, and this low pressure oil passage is through the stage casing, rod seal hole on the pressurized cylinder front cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201844360U CN201330762Y (en) | 2008-12-25 | 2008-12-25 | Pneumatic-hydraulic pressurizing cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201844360U CN201330762Y (en) | 2008-12-25 | 2008-12-25 | Pneumatic-hydraulic pressurizing cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201330762Y true CN201330762Y (en) | 2009-10-21 |
Family
ID=41224142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201844360U Expired - Fee Related CN201330762Y (en) | 2008-12-25 | 2008-12-25 | Pneumatic-hydraulic pressurizing cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201330762Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103872273A (en) * | 2014-03-28 | 2014-06-18 | 东莞市泽恒机械有限公司 | Method for automatically stamping aluminum-plastic film to form shell of lithium battery |
-
2008
- 2008-12-25 CN CNU2008201844360U patent/CN201330762Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103872273A (en) * | 2014-03-28 | 2014-06-18 | 东莞市泽恒机械有限公司 | Method for automatically stamping aluminum-plastic film to form shell of lithium battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Weihai KAER Sonic Power Co., Ltd. Assignor: Sheng Tongfei Contract record no.: 2011370000373 Denomination of utility model: Stamping press with pneumatic and hydraulic pressure increasing cylinder Granted publication date: 20091021 License type: Exclusive License Record date: 20110812 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091021 Termination date: 20171225 |