CN2661987Y - High power superchargeable oil hydraulic cylinder - Google Patents
High power superchargeable oil hydraulic cylinder Download PDFInfo
- Publication number
- CN2661987Y CN2661987Y CN 200320101541 CN200320101541U CN2661987Y CN 2661987 Y CN2661987 Y CN 2661987Y CN 200320101541 CN200320101541 CN 200320101541 CN 200320101541 U CN200320101541 U CN 200320101541U CN 2661987 Y CN2661987 Y CN 2661987Y
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- piston
- oil
- pressure
- piston rod
- outer shell
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Abstract
The utility model discloses a high pressure boosting oil pressure cylinder, mainly comprising a piston rod which is capable of axial movement in the outer cylinder body chamber and a piston back seat. A piston and a pressure boosting piston rod is held in the piston rod. The other end is provided with a piston back seat. The piston rod is provided with an oil pressure channel penetrating the inner and the outer walls for the communication with the oil chamber of the outer cylinder body. The outer cylinder body is also provided with an oil-in expansion assembly outside and connected with the piston rod extending outside the outer cylinder body through the pressure boosting rod to ensure that the oil chambers are reciprocally conducted. The pressure oil is guided in through the channel of the outer cylinder body and the piston rod can be incremental launched to move. The pressure oil is guided in through the pressure oil channel of the oil-in expansion assembly to drive the piston in the piston rod and the pressure boosting piston rod to move. The pressure boosting piston rod can boost the pressure oil on the other side of the piston back seat to top pressure, so that work doing of the piston rod inside the outer cylinder body is multiplied.
Description
Technical field
The utility model relates to a kind ofly can promote the oil hydraulic cylinder output power, though oil hydraulic cylinder under identical big or small situation, but increase with low voltage operated and its high power of exerting oneself, thereby the oil hydraulic cylinder that reduces cost.
Background technique
Oil hydraulic cylinder is that industrial quarters is used for automation, a kind of indispensable instrument in laborsavingization and the big place of exerting oneself, oil hydraulic cylinder for the big place that takes efforts, can nationality by the internal diameter that strengthens oil hydraulic cylinder, or the pressure of raising oil pressure, or simultaneously with the internal diameter increasing of oil hydraulic cylinder and the pressure of raising oil pressure, obtain bigger output strength, again and, the manufacture cost of this oil hydraulic cylinder and the internal diameter of oil hydraulic cylinder are proportional, when the oil pressure pump of the required supply oil pressure source of increased pressure and the also increase thereupon of manufacture cost of The whole control oil pressure unit, and the thickness of pipe arrangement and the difficulty of construction also can increase simultaneously, therefore, the cost of equipment of whole pressurized oil system is to increase along with the increase of pressure, and maintenance expenses in the future also increases along with the pressure of oil pressure and doubles.
No. the 293454th, Taiwan patent announcement, it mainly is to offer second runner and commentaries on classics oil circuit at oil cylinder body casing wall that name is called in " hydraulic intensifier improvement " disclosed hydraulic intensifier, and the second runner conducting, the second oil circuit mouth is to sequence valve, this change oil circuit then the conducting sequence valve to lower oil chamber; Just, the tamponade of setting to sequence valve when the oil hydraulic cylinder start is exerted pressure the fluid in the upper chamber and is extruded, and supplies with the start of the oil hydraulic cylinder application of force.
Being disclosed in this patent, mainly is that the side by oil hydraulic cylinder is provided with a hydraulic intensifier in addition, therefore, the volume of this oil hydraulic cylinder becomes huge, and the pressurized effect that it is reached only is the addition of oil hydraulic cylinder and pressurized machine, and the limited and cost of its effect is failed a large amount of the reduction.
Summary of the invention
But the main purpose in the utility model is to provide a kind of high power pressurised oil cylinder pressure structure, and promptly under the identical big or small situation of oil hydraulic cylinder, it is exerted oneself and can double, and can reduce cost.
Oil hydraulic cylinder in the utility model is that the room at the outer shell body holds into a piston rod and a piston back seat and can move axially, hold to go into a piston and a charged piston bar in this piston rod in addition, end is provided with the piston back seat in addition, this piston rod have run through in, the pressure oil passage of outer wall communicates with the grease chamber of outer shell body, this external flexible group of oil-feed of establishing in addition of this outer shell, the flexible group of this oil-feed is provided with a supercharging connecting rod and is connected with this external piston rod of cylinder that extends, its grease chamber is conducted, passage by the outer shell body imports pressure oil, but the pushing tow piston rod moves, and by the flexible pressure oil passage importing pressure oil of organizing of oil-feed, make piston and the action of charged piston bar in the piston rod, the charged piston bar can make the intrinsic piston rod work done multiplication of outer shell with the pressure oil roof pressure of other side of piston back seat.
Description of drawings
The specific embodiment of the utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the sectional drawing when not moving after the oil hydraulic cylinder combination in the utility model;
Fig. 2 is the schematic representation of the action of oil hydraulic cylinder shown in Fig. 1 one;
Fig. 3 is the schematic representation of the action of oil hydraulic cylinder shown in Fig. 1 two;
Fig. 4 is the schematic representation of the action of oil hydraulic cylinder shown in Fig. 1 three;
Fig. 5 is the schematic representation of the action of oil hydraulic cylinder shown in Fig. 1 four;
Fig. 6 is the user mode schematic representation of oil hydraulic cylinder in the utility model.
Embodiment
As shown in Figure 1, but in the utility model one preferred embodiment the oil hydraulic cylinder of high power supercharging mainly constitute by members such as the flexible groups 4 of outer shell body 1, piston rod 2, supercharging connecting rod 3 and oil-feed.Wherein:
Two ends of one outer shell body 1 are respectively equipped with an outer shell bonnet 11, one outer cylinder front cover 12, outer shell bonnet 11, available welding between the body of outer cylinder front cover 12 and outer shell body 1, various fixation methods such as screwing togather is fixed, this outer shell bonnet 11 is provided with a pressure oil passage a, make and press oil can enter in the outer shell body 1, in case of necessity, this outer shell bonnet 11 can be established room, to hold to go into a check valve seat 13 isobaric oily control members, these check valve seat 13 1 sides are established a control piston 14, side is established a check valve case 15 in addition, this control piston 14 and check valve case 15 are respectively by an elastic component 16,17 pushing tows, these members are by an outer shell back shroud 18 sealings, this outer shell back shroud 18 is provided with a pressure oil passage d, makes to press oil can enter to control piston 14 1 sides; This outer shell bonnet 11 set pressure oil passage a communicate with its inner room, make and press oil can enter to check valve seat 13, and in check valve case 15 entered to the F of grease chamber of outer shell body 1, this outer shell body 1 was provided with in addition and connects the outer shell body 1 pressure oil passage b logical with the A of its grease chamber.
One piston rod 2, after these piston rod 2 one ends are established a piston back seat 21, hold to go in outer shell body 1, to do reciprocating action, and outer shell body 1 is distinguished into the A of grease chamber, F, this piston rod 2 end is in addition stretched out by the outer cylinder front cover 12 of outer shell body 1 and is equipped with a piston front stall 22, this piston front stall 22 can connect workpieces 5 such as mould, this piston rod 2 itself holds to go into a piston 23, this piston 23 has been received a charged piston bar 24, this charged piston bar 24 passes through the plug back seat 21 of taking over a job, this piston rod 2 is distinguished into the B of grease chamber by piston 23, C, and the B of grease chamber is provided with in the perforation, outer pressure oil passage 25, and the C of grease chamber is pressurized connecting rod 3 connections.
One supercharging connecting rod 3, an end of this supercharging connecting rod 3 is fixed in piston front stall 22, establishes a pressure oil passage 31 in this supercharging connecting rod 3 and communicates with the piston front stall 22 set C of grease chamber, and this supercharging connecting rod 3 can be for 4 windings of the flexible group of oil-feed.
The flexible group 4 of one oil-feed, be fixed on outer shell body 1 outside or the outer shell bonnet 11, the flexible group 4 of this oil-feed establishes one can make the interior pipe 41 of stretching of axial motion, should be fixed in supercharging connecting rod 3 by flexible interior pipe 41 1 ends, should establish a D of grease chamber and pressure oil passage 31 conductings by flexible interior pipe 41, pipe 41 is held in addition to be nested with one and is fixed in the flexible group 4 of the oil-feed fixed sleeving 42 of end in addition in flexible, should flexible interior the pipe between 41 end faces and fixed sleeving 42 outer walls be provided with a slider 43,4 formation of the flexible group of pipe 41 and the oil-feed E of grease chamber in should stretching, this fixed sleeving 42 is provided with the turnover that pressure oil passage c can press oil; Should be provided with the passage 44 that runs through inside and outside wall by flexible interior pipe 41, the E of grease chamber, D are communicated, fixed sleeving 42 is provided with the passage 45 that runs through inside and outside wall.
As Fig. 2 and shown in Figure 6, the oil hydraulic cylinder in the utility model is filled with in the A of grease chamber, B, C, D, E, the F and is pressed oil in use.When injecting the low pressure oil sources by passage a, press oil can enter to check valve seat 13, elder generation's pushing tow control piston 14 is moved to the left (according to drawing, as follows) to the location, the multiple pushing tow check valve case 15 of this pressure oil moves right to form and opens, and this pressure oil enters to room F pushing tow piston rod 2, piston back seat 21, piston front stall 22, piston 23 and charged piston bar 24 thereof and moves right, at this moment, pressure oil in the A of grease chamber is discharged by pressure oil passage b and is back to fuel tank, and the oil of the pressure in the B of grease chamber keeps filling with state; When piston front stall 22 moves to right again, supercharging connecting rod 3 is driven simultaneously, flexible interior pipe 41 is pulled to the right, pipe 41 was when the flexible group 4 of oil-feed moved in should stretching, pressure oil in the D of grease chamber is because of vacuum phenomenon, by passage c to fuel tank oil suction fill up, arrive at terminal point and stop up to the workpiece 5 that engages with piston front stall 22, at this moment, the high point of pressure that rises to oil pressure source of the pressure oil pressure in the F of grease chamber (is supposed 30kg/cm
2), it can make OFF by the pressure switch of setting, and check valve case 15 is resetted by elastic component 17 pushing tow that expands promptly, at this moment, pressure oil pressure in the check valve seat 13 and because of the effect of elastic component 16, control piston 14 does not have the problem that forces check valve case 15 to be opened that moves to right and occurs.
As shown in Figure 3, inject low pressure (less than 30kg/cm when opening by passage c
2) pressure when oil, this pressures oil enters the C of grease chamber via the D of grease chamber → this passage 31 because the area of piston 23 is greater than the cross-sectional area (being assumed to be 10 times) of charged piston bar 24, then the interior pressure oil pressure of the C of grease chamber is greater than 3kg/cm
2The time, this piston 23 will head on charged piston bar 24 and be moved to the left, and clamp-ons in piston rod 2, piston back seat 21 left sides and fills with 30kg/cm
2Pressure is pressed in the room F of oil, pressure oil pressure in the C of grease chamber increases, this charged piston bar 24 will continue to be moved to the left, therefore, piston rod 2, the suffered pressure in piston back seat 21 left sides also can continue to increase, strength that is subjected to up to charged piston bar 24 and piston 23 are subjected to when matching, and charged piston bar 24 just can stop to be moved to the left and to be squeezed in the F of grease chamber; Again, the pressure oil in the B of grease chamber is subjected to the compressing of piston 23, and this pressure oil can flow back in the fuel tank via the A of pressure oil passage 25 → grease chamber → passage b, and therefore, the pressure in the B of this grease chamber can not increase, and still remains on 0kg/cm
2, therefore, the pressure oil pressure in the C of this grease chamber can not have consume because of being subjected to back pressure.
The pressure of the F of this grease chamber is assumed to be P1, and the C of grease chamber is that the pressure that piston 23 is subjected to is the high pressure 30kg/cm that P2 will be elevated to the oil pressure source design
2, and the area ratio of this charged piston bar 24 and piston 23 is 10, then
P1＝P2×10＝300kg/cm
2
Therefore, piston front stall 22 will be subjected to piston back seat 21 total area x with workpiece 5 and produce pressure (300kg/cm
2) strength, therefore, the strength that workpiece 5 is subjected to also just increases by 10 times.
As shown in Figure 4, after 5 works done were finished to workpiece, the pressure oil in the D of this grease chamber was controlled via control valve, was back in the fuel tank by passage c, and this moment, pressure dropped to 0kg/cm gradually
2The time, piston 23 produces the balance of power relation because of pressure descends, charged piston bar 24, piston 23 are return original position (moving right) gradually, the B of grease chamber can produce vacuum, follow the A of pressure oil passage 25 → grease chamber and suck stress-free pressure oil from passage b, the pressure oil of the F of this grease chamber also can be because of the retreating of charged piston bar 24, and make pressure drop to low pressure gradually from high pressure.
As shown in Figure 5 and Figure 6, when pressing oil to import, press oily pushing tow control piston 14 to move right by passage d, and force check valve case 15 to be opened, and pressure oil passage a is unlocked and the F of grease chamber conducting, and the interior pressure oil of the F of grease chamber this moment flows back to fuel tank via pressure oil passage a, and pressure drops to 0kg/cm
2Pressure, at this moment, keep conducting in fuel tank at this passage c, and passage b opens under the situation, this pressure oil follows room A → pressure oil passage 25 and enters the B of grease chamber, this piston rod 2, piston back seat 21 are moved to the left and are reset to original point, therefore, pressure oil in the F of grease chamber can be back in the fuel tank, reflux up to control of the controlled valve of passage d and fuel tank conducting, this control piston 14 is moved to the left by elastic component 16 pushing tows to reset, and check valve case 15 is resetted by elastic component 17 pushing tows also, check valve seat 13 is closed, wait for another task.
Oil hydraulic cylinder in the utility model is under the oil hydraulic cylinder and other accessory of same output power, its price difference is more than three times, be that the expense of oil hydraulic cylinder equipment in the utility model is about and can reduces by 1/3rd, and the equipment of pipeline, maintenance expenses also can be saved in a large number, and horsepower, but the energy is economization all, and then can cut operating costs, if with onesize oil hydraulic cylinder, output power in the utility model is bigger, again, oil hydraulic cylinder in the utility model is the high pressure in oil hydraulic cylinder, and this presses oil at pipeline, be in low pressure during equipment work, the operating on low voltage environment is safer and secure.
In addition; though above-mentioned preferred embodiment in the utility model is described; but can not be as protection domain of the present utility model; promptly should be understood that to those skilled in the art; do not breaking away from variation and the modification that to make equivalence under the design spirit of the present utility model to it; therefore, every not breaking away from the equivalence variation of having done under the design spirit of the present utility model and modification, all should think to fall into protection domain of the present utility model.
Claims (5)
1. but the oil hydraulic cylinder of a high power supercharging is characterized in that it comprises:
Outer shell body, this outer shell body are provided with two pressure oil passages that run through this outer shell body, these outer shell body two ends be respectively equipped with the outer shell bonnet with outside cylinder front cover;
Piston rod, this piston rod one end is provided with and holds to go into the piston back seat that work moves back and forth in the outer shell body, piston rod in addition end is stretched out by outer cylinder front cover and is provided with the piston front stall, establish piston and charged piston bar in this piston rod, this charged piston bar end is in addition stretched out by the piston back seat, and this piston rod is provided with the pressure oil passage that runs through outer wall and grease chamber at least one side of piston back seat;
Supercharging connecting rod, this supercharging connecting rod are combined in the piston rod that stretches out in the outer shell body and communicate with the grease chamber of piston rod with passage;
The flexible group of oil-feed, be combined in the outer shell body outside, by one flexible in Guan Yiduan be combined in the supercharging connecting rod and be conducted with passage, in should be flexible pipe in addition end be enclosed within a fixed sleeving that is fixed in the flexible group of oil-feed, and the two establishes slider, pipe, fixed sleeving respectively were provided with the passage that runs through inside and outside wall in should be flexible, and this fixed sleeving is established to import and pressed oil to be used for the passage that piston in the piston rod and charged piston bar thereof move.
2. but according to the oil hydraulic cylinder of the high power supercharging described in the claim 1, it is characterized in that: described outer shell bonnet is established a room, and this room content is gone into a check valve seat.
3. but according to the oil hydraulic cylinder of the high power supercharging described in the claim 2, it is characterized in that: described check valve seat one side is established a control piston, and side is established a check valve case in addition.
4. but according to the oil hydraulic cylinder of the high power supercharging described in the claim 3, it is characterized in that: establish a pressure oil passage between described control piston and check valve case, this control piston and check valve case are respectively by the elastic component pushing tow.
5. but according to the oil hydraulic cylinder of the high power supercharging described in the claim 2, it is characterized in that: described check valve seat is by an outer shell covering palte seal, and this outer shell cover plate establishes one can make the pressure oil passage of pressing oil to enter the pushing tow control piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320101541 CN2661987Y (en) | 2003-10-22 | 2003-10-22 | High power superchargeable oil hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320101541 CN2661987Y (en) | 2003-10-22 | 2003-10-22 | High power superchargeable oil hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2661987Y true CN2661987Y (en) | 2004-12-08 |
Family
ID=34339705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320101541 Expired - Fee Related CN2661987Y (en) | 2003-10-22 | 2003-10-22 | High power superchargeable oil hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2661987Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661297A (en) * | 2012-05-30 | 2012-09-12 | 江苏扬力数控机床有限公司 | Hydraulic system of numerical control turrent punch press and working method of hydraulic system |
| CN102889252A (en) * | 2012-09-27 | 2013-01-23 | 中联重科股份有限公司 | Supercharging device and supercharging cylinder |
| CN104196818A (en) * | 2014-09-24 | 2014-12-10 | 郑州协力建工设备有限公司 | Novel quick-pressurizing hydraulic cylinder |
| CN107131174A (en) * | 2017-06-15 | 2017-09-05 | 湖北工业大学 | The built-in main hydraulic jack of supercharging of large-tonnage full-automatic hydraulic brick machine |
-
2003
- 2003-10-22 CN CN 200320101541 patent/CN2661987Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661297A (en) * | 2012-05-30 | 2012-09-12 | 江苏扬力数控机床有限公司 | Hydraulic system of numerical control turrent punch press and working method of hydraulic system |
| CN102661297B (en) * | 2012-05-30 | 2014-08-13 | 江苏扬力数控机床有限公司 | Hydraulic system of numerical control turrent punch press and working method of hydraulic system |
| CN102889252A (en) * | 2012-09-27 | 2013-01-23 | 中联重科股份有限公司 | Supercharging device and supercharging cylinder |
| CN102889252B (en) * | 2012-09-27 | 2015-04-29 | 中联重科股份有限公司 | Supercharging device and supercharging cylinder |
| CN104196818A (en) * | 2014-09-24 | 2014-12-10 | 郑州协力建工设备有限公司 | Novel quick-pressurizing hydraulic cylinder |
| CN107131174A (en) * | 2017-06-15 | 2017-09-05 | 湖北工业大学 | The built-in main hydraulic jack of supercharging of large-tonnage full-automatic hydraulic brick machine |
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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 |