CN100390443C - Energy-saving hydraulic machinery - Google Patents
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- CN100390443C CN100390443C CNB021118582A CN02111858A CN100390443C CN 100390443 C CN100390443 C CN 100390443C CN B021118582 A CNB021118582 A CN B021118582A CN 02111858 A CN02111858 A CN 02111858A CN 100390443 C CN100390443 C CN 100390443C
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Abstract
The present invention relates to a hydraulic machine, an injection molding machine, a mold casting machine, a hot pressing machine and other hydraulic machines, which is characterized in that a hydraulic cylinder of each of the hydraulic machines does not have a fixed cylinder bottom of the existing hydraulic cylinder but has a movable cylinder bottom 208 in a through cylinder barrel 206, which can move with a piston 207, and a brake rod 209 which is made into a whole together with the movable cylinder bottom 208 can make reciprocating movement in hydraulic brakes 210, 211, 212 and can be braked or disengaged at any time. When the hydraulic machines work, liquid of only a small section of working stroke is compressed in the cylinder barrel, so that the fundamental defect that liquid of a large section of idle stroke is simultaneously compressed in the existing hydraulic cylinder is overcome. As a result, the hydraulic machines have the advantages of energy saving, high productivity, low manufacture cost, favorable product precision, small vibration and impact, etc.
Description
One. technical field
The present invention relates to hydraulic press, injection machine, die casting machine, hotpress and other similar hydraulic machineries that a kind of shaping, pressed metal or non-metallic products are used.
Two. background technique
On these hydraulic machineries such as hydraulic press, injection machine, die casting machine and hotpress this a whole set of drive system of motor-oil hydraulic pump-oil hydraulic cylinder is housed all, its effect is: at first utilize motor-oil hydraulic pump to convert electrical energy into the hydraulic pressure energy, utilize oil hydraulic pump-oil hydraulic cylinder that hydraulic pressure can be converted to mechanical energy then, make these hydraulic machinery actings, be shaped, suppress various metals or non-metallic products.
At present, the basic structure form of the oil hydraulic cylinder on these hydraulic machineries as shown in Figure 1, it is made up of cylinder body [1], piston [2] and cylinder cap [3].When the hole oil-feed of oil hydraulic cylinder upper end A, the oil extraction of B hole, lower end, piston is just to down stroke; Otherwise when the oil-feed of B hole, the oil extraction of A hole, piston is upwards backhaul just.Occurred in the world since 1861 first hydraulic press later over more than 140 year, this conventional construction form of oil hydraulic cylinder does not change basically.
In this oil hydraulic cylinder, a total travel H of piston generally is divided into two sections: idle stroke H
1With working stroke H
2Piston does not do work in idle stroke, still, in order to install and adjust mould and in order to send into blank and to take out workpiece, idle stroke is absolutely necessary again, and in actual production idle stroke H
1A big section often, working stroke H real acting, that shaping and pressed metal or non-metallic products are used
2But only account for a bit of.For example: the hydraulic press that deep drawn and smith forging are used, its working stroke is long, also only accounts for 1/4 to 1/10 of total travel; The hotpress that hydraulic press that the hydraulic press of die forging, side cut usefulness and pressed powder goods, abrasive product, rubber product are used and compacting man-made board are used, its working stroke is then shorter; The hydraulic press that blanking, stamping-out are used, its working stroke are sometimes even less than 1 millimeter; Hydraulic type mold closing mechanism on injection machine and the die casting machine, its piston be pushing away moving pattern plate go to the platen matched moulds after, just begin to bear injection power, its working stroke no better than zero.This shows that the length of the idle stroke of these hydraulic machineries substantially exceeds the length of its working stroke.
As everyone knows, the idle stroke H of piston
1Under low pressure move, but as working stroke H
2During beginning, only comprise big section idle stroke H
1Whole liquid in interior whole oil hydraulic cylinder all are compressed to high pressure (cry usually and boost) from low pressure, and afterwards, piston could do work, and blank is pressed into finished product, up to working stroke H
2Finish.The every work of machine once, the whole liquid in the whole oil hydraulic cylinder just are compressed once.This working method of conventional cylinder is brought following a series of defective:
One. the liquid in the waste energy oil hydraulic cylinder is compressed to the energy A that high pressure consumes from low pressure and is calculated as follows:
In the formula: the highest unit pressure of liquid in the P-oil hydraulic cylinder
The volume of liquid in the V-oil hydraulic cylinder
The compressibility coefficient of β-liquid
The internal diameter of D-oil hydraulic cylinder
H
1, H
2The idle stroke of-piston and working stroke
From formula as can be seen: the energy A that compressed liquid consumed in the oil hydraulic cylinder and the volume V of liquid, just with the idle stroke H of piston
1With working stroke H
2Be directly proportional.Piston is in the working stroke acting, and the liquid of the idle stroke that big section is not done work is compressed the energy that is consumed too and wastes.Because the length of idle stroke substantially exceeds the length of working stroke, so the energy dissipation of not doing work has substantially exceeded the energy consumption of acting.For example, with the steel plate of 315 t hydraulic press stamping-outs, 2 millimeters thick, the stamping-out merit of consumption has only 0.2 ton of rice, and the energy that the liquid of compression idle stroke is wasted has 1.8 tons of rice, and that is to say: 90% energy wastes.This shows that the energy dissipation of these hydraulic machineries is very serious [2], [3].
Two. operating rate is slow, and low this of productivity is because the 1st: idle stroke is long more, and the time of oil hydraulic cylinder internal-filling liquid is also long more; The the 2nd: after the liquid of idle stroke section is full of in the oil hydraulic cylinder, when starting working stroke, when liquid is compressed to high pressure from low pressure, is compressed the volume delta V that dwindles and is calculated as follows:
In the formula: P, V, β, D, H
1, H
2All with following formula in identical.
Being compressed the liquid volume Δ V that dwindles is replenished by oil hydraulic pump or accumulator.As can be seen from the above equation: replenishing the time that this part liquid Δ V spent also becomes positive limit with idle stroke, promptly idle stroke is long more, and oil hydraulic cylinder required time of boosting is also long more, time that some hydraulic press boosts even will account for a net cycle time about 30% [1]; And the time that discharges dump energy when release is also long more; So the operating rate of hydraulic press is slow, productivity is low.
Three. the manufacture cost height is in order to improve the productivity of these hydraulic machineries, particularly open die forging and stamp forging hydraulic press are in order to strike while the iron is hot, suppress the hotpress of man-made board in order to prevent the colloid premature setting of steel slab surface, all require to improve as early as possible the operating rate of hydraulic cylinder piston, therefore, install the complicated and expensive hydromechanical system of a cover such as liquid-filling valve, pressure-loaded prefilling tank, low pressure buffer device and accumulator additional, cause the manufacture cost of machine to increase greatly.
Four. the goods low precision is on injection machine that has the hydraulic type mold closing mechanism and die casting machine, after moving pattern plate and the platen matched moulds, when the mould on the moving pattern plate bears injection power, liquid in the oil hydraulic cylinder is compressed, mould shrinks back to be allowed (usually cry allow mould), causes the low precision of goods at thickness direction.
Five. vibrate and impact greatly as previously mentioned, the liquid of big section idle stroke is compressed in the oil hydraulic cylinder, has put aside big energy.When working stroke finishes, to remove beyond the energy that compacted products consumes, unnecessary energy discharges suddenly, makes machine produce vibration and impacts, and influences the working life of machine.In order to reduce vibration and to impact, on stamping-out and side cut hydraulic press, all install hydraulic bjuffer additional, to absorb unnecessary energy.But installing hydraulic bjuffer additional makes the cost of machine increase again.
From the above as can be seen: this a series of defective all be since the oil hydraulic cylinder liquid compression of big section idle stroke cause, yet for installation mold and feeding, pickup, idle stroke is absolutely necessary again.In order to solve this contradiction, people design and have invented many new organization plans [1] [2] [3] [4] [6] [8], on the mold closing mechanism of injection machine, even more than 20 kind of matched moulds scheme [5] proposed, the common point of these schemes all is this essence disadvantage of liquid compression that will reduce or eliminate idle stroke in the oil hydraulic cylinder.But, because these schemes all do not break through the cylinder barrel of conventional cylinder and this basic structure form that cylinder bottom is made of one, so all fundamentally do not solve this disadvantage.Document [7] is though propose the liquid compression that the brake master cylinder piston bar reduces or eliminates idle stroke in the oil hydraulic cylinder, but, do not break through the structural type that cylinder barrel and cylinder bottom are made of one yet, particularly it promotes the complex structure that drag cone overlaps axially movable displacement braker of straight line, and to be manufactured on the elastic component that produces a very big elastic force under the very little axial displacement, this is very difficult or even impossible.So above-mentioned all schemes are all undesirable, so that up to the present, at home, on external these hydraulic machineries, still have the oil hydraulic cylinder of the conventional construction of above-mentioned a series of defectives in use.
Three. summary of the invention
Purpose of the present invention is exactly to eliminate the liquid compression of big section idle stroke in the conventional cylinder, to overcome the above-mentioned many disadvantages of these hydraulic machineries.
As shown in Figure 1, the cylinder body of conventional cylinder [1] can be divided into cylinder bottom [1-1], cylinder barrel [1-2] and three parts of flange [1-3].Design of the present invention is: the structural type that breaks through conventional cylinder, cylinder bottom [1-1] and cylinder barrel [1-2] is separated, cylinder barrel [1-2] becomes the cylinder barrel of break-through, and cylinder bottom [1-1] becomes one can follow piston [2] movable cylinder bottom reciprocating, that also can be braked or throw off at any time.When idle stroke began, this activity cylinder bottom was followed piston and is moved together, up to the idle stroke end, when working stroke begins, movable cylinder bottom is braked the device braking, oil inlet hole from movable cylinder bottom charges into high pressure oil again, promotes the piston work done, till working stroke finishes.Then, stop to charge into high pressure oil, and pressure release, break is thrown off, in the other end oil-feed of piston, make piston to the opposite direction backhaul, the oil with the working stroke section flows back to fuel tank earlier, is pushing away the initial position that movable cylinder bottom is back to idle stroke together at last again.Like this, the liquid that is compressed to high pressure from low pressure has only working stroke, and this is a bit of, and does not have the liquid of big section idle stroke also to be compressed simultaneously.
Characteristics of the present invention are: with the moved cross beam or the injection machine of hydraulic press, the moving pattern plate of die casting machine, rely on deadweight and fall or rely on small oil tank to promote to cover after idle stroke or the mould-closing stroke, utilize hydraulic brake with brake rod, or column, or pull bar is braked, then, carry out working stroke or injection stroke again, like this, compressed liquid only is that this is a bit of for working stroke in the oil hydraulic cylinder, the liquid that has thoroughly overcome big section idle stroke in the conventional cylinder is compressed essence disadvantage and a series of defectives of being brought thereof simultaneously also, so hydraulic machinery of the present invention has following advantage:
1. energy-conservation this is owing to reduced the liquid compression of big section idle stroke.According to different process applications, can energy-conservation 20-90%.According to " Energy Conservation Law of the People's Republic of China ", energy-conservation is extremely important long-range strategy and policy of our national development economy, and every profession and trade all should develop, promote energy-conservation new equipment, restriction or the high old equipment of superseded energy consumption.
2. high this of productivity is owing to reduced topping up, boost and time of pressure release, and the operating rate of these hydraulic machineries is accelerated, and productivity improves, and the highlyest improves 30%.
Low cost of manufacture this be owing to do not need the complicated and expensive hydromechanical system of liquid-filling valve, pressure-loaded prefilling tank, low pressure buffer device and accumulator etc. one cover; The crossbeam of machine or template can reduce to 2 by 3; The oil mass of operation significantly reduces; These all impel the manufacture cost of machine to reduce.
4. good this of goods precision is because the mold closing mechanism of injection machine and die casting machine after matched moulds, also has the pressurization of voltage stabilizing cylinder, mould can not occur allowing, so the goods precision is good.And; adopt the mold closing mechanism of technological scheme manufacturing of the present invention; (mould is easy to adjust both to have had the advantage of existing hydraulic type mold closing mechanism; die life is long, does not need mould adjusting mechanism), the advantage that has existing elbow rod type die joining device again is (energy-conservation; the productivity height; low cost of manufacture), and having overcome their shortcomings separately, is a kind of mold closing mechanism of excellent performance.
5. this is because the liquid compression that discharges when release can significantly reduce to vibrate and impact minimizing.Like this, hydraulic press does not install hydraulic bjuffer additional, also can carry out operations such as blanking, stamping-out and side cut, enlarged the process applications of hydraulic press, the aforesaid in addition energy-conservation and high advantage of productivity, particularly the price of hydraulic press is confidential more much lower than the mechanical pressure of same tonnage, so, adopt the hydraulic press of technological scheme manufacturing of the present invention to have stronger competitive ability than mechanical press.
Four. description of drawings
Fig. 1 is the structural representation of conventional cylinder.
Fig. 2 is the 1st embodiment of the present invention.
Fig. 3 is the 2nd embodiment of the present invention.
Fig. 4 is the 3rd embodiment of the present invention.
Fig. 5 is the 4th embodiment of the present invention.
Five. embodiment
As shown in Figure 2, hydraulic cylinder body on the hydraulic press is flange [217] formation by cylinder barrel [206] and upper end thereof, with nut [204] its lower end is fixed on the upper beam [205], the lower end of the piston [207] in the cylinder barrel [206], pass the cylinder cap of being formed by bearing ring [202] and guide sleeve [203], link together with moved cross beam [201], there is oilhole B the lower end of cylinder barrel [206], the invention is characterized in: cylinder barrel [206] does not have fixing cylinder bottom, can be by hydraulic brake [210,211,212] braking or the movable cylinder bottom [208] of throwing off and have; This hydraulic brake by cylinder body [211], have the cylinder cap [212] of center hole [213] and the braking plate [210] that can be in cylinder body [211] radially moves be formed, cylinder body has oilhole C on [211], can lead to oil to by the outer side surface of braking plate [210] and the master cylinder that inner chamber constituted [216] of cylinder body [211], hydraulic brake is fixed on the upper-end surface of the flange [217] that is made of one with cylinder barrel [206] with one group of bolt [215] and nut [214]; This activity cylinder bottom [208] is not fixedlyed connected with cylinder barrel [206], and be made of one with brake rod [209], and center oilhole A is arranged, brake rod [209] passes the inner side surface of braking plate [210] and the center hole [213] of cylinder cap [212], can be reciprocating in break, and can be braked or throw off at any time.
Before hydraulic press is started working, A hole and all pressure releases of C hole, braking plate [210] and brake rod [209] are in disengaged condition.The oil-feed of B hole makes piston [207] head on movable cylinder bottom [208] and brake rod [209] and is parked in initial position in the idle stroke.The oil circuit of B hole oil-feed is the balanced loop of forming with one way sequence valve, the set pressure of one way sequence valve is adjusted to the gross weight of this whole moving element that the back pressure of piston [207] lower end can balance be made up of brake rod [209], movable cylinder bottom [208], piston [207] and moved cross beam [201].
When work cycle began, the pressure release of B hole moved downward from brake rod [209] to this whole moving element of moved cross beam [201] owing to conducting oneself with dignity, until covering idle stroke H
1, stroke H starts working
2The time (E point among the figure), high pressure oil is advanced in the C hole of master cylinder [216], act on the outer side surface of braking plate [210], braking plate [210] is moved radially, its inner side surface is pressed on the outer surface of brake rod [209], utilize the frictional force between the two that brake rod [209] is braked tightly, movable cylinder bottom [208] is also just slack.Then, the lower end surface of high pressure oil to movable cylinder bottom [208] entered in the A hole on the brake rod [209], promotes piston [207] pressurization downwards, makes blank be pressed into finished product, up to working stroke H
2Till the end (F point among the figure); At last, A hole and all pressure releases of C hole, braking plate [210] and brake rod [209] are thrown off, and the oil-feed of B hole promotes upwards backhaul of piston [207], earlier with the interior working stroke section of cylinder barrel [206] H
2Oil flow back to fuel tank through the A hole, head on movable cylinder bottom [208] and brake rod [209] again and continue the backhaul that makes progress together, stop at the initial position in the idle stroke, the work cycle end.
As shown in Figure 3, a kind of hydraulic press, its frame is by bottom end rail [301], column [302], moved cross beam [303] and upper beam [305] constitute, in the both sides of upper beam [305] kicker cylinder [310] is housed, the lower end and the moved cross beam [303] of the piston [309] in this cylinder link, there is oilhole B kicker cylinder [310] lower end, the oil circuit in B hole also is the balanced loop, balance the gross weight of this moving element of moved cross beam [303] and all component mounted thereto, the invention is characterized in: on upper beam [305], hydraulic brake is installed, this break is had the cylinder body [307] of center hole by cylinder bottom, the braking plate [306] that has the cylinder cap [304] of center hole and can radially move in cylinder body [307] is formed, cylinder body has oilhole C on [307], can lead to oil extremely by the outer side surface of braking plate [306] and the master cylinder that inner chamber constituted [311] of cylinder body [307]; The clutch release slave cylinder of machine is installed on the top of moved cross beam [303], and it is made up of cylinder barrel [313], the cylinder cap [312] that has center hole and movable cylinder bottom [314]; Movable cylinder bottom [314] and brake rod [308] are made of one, its center has oilhole A to pass straight through to the lower end surface of movable cylinder bottom [314], brake rod [308] passes the inner side surface of clutch release slave cylinder cylinder cap [312], break cylinder cap [304], braking plate [306] and the cylinder bottom of break cylinder body [307], can be reciprocating in break, and can be braked or throw off at any time.
Before hydraulic press is started working, all pressure releases of oilhole A, C, the oil-feed of B hole, moved cross beam [303] stops at upper dead center S.When work cycle begins, the pressure release of B hole, this moving element of moved cross beam [303] is owing to deadweight moves downward, until will cover idle stroke, (E point among the figure) when starting working stroke, high pressure oil is advanced to master cylinder [311] in the C hole of hydraulic brake, brake rod [308] is braked tightly, movable cylinder bottom [314] is also slack simultaneously, then, enter the lower end surface of high pressure oil to movable cylinder bottom [314] from the A hole on the brake rod [308], pushing the work forward, cylinder [313] and moved cross beam [303] are downward to pressurize, till working stroke finishes (F point among the figure).At last, A hole and all pressure releases of C hole, break is thrown off, the oil-feed of B hole, the drawback piston of both sides [309] is being with the backhaul that makes progress of this moving element of moved cross beam [303], earlier the oil in the clutch release slave cylinder [313] is flow back to fuel tank through the A hole, and then continue upwards backhaul together to the upper dead center S of idle stroke with movable cylinder bottom [314] and brake rod [308], work cycle finishes.
As shown in Figure 4, a kind of hydraulic press, its frame is made of upper beam [403], column [402] and bottom end rail [401], the clutch release slave cylinder of hydraulic press is housed on upper beam [403], it is made up of cylinder body [405], piston [404] and the cylinder cap [406] that has a center hole, there are oilhole K and G in the top and bottom of cylinder body [405], and the lower end of piston [404] is passed cylinder cap [406] and directly is connected with patrix [407], and counterdie [408] is contained on the bottom end rail [401]; In two outsides of bottom end rail [401] kicker cylinder [410] is housed, the upper end and the upper beam [403] of the piston [409] in this cylinder link, and there is oilhole B the lower end of kicker cylinder [410]; The oil circuit in B hole also is the balanced loop, and balance upper beam [403] and the clutch release slave cylinder [404,405,406] mounted thereto and the gross weight of this moving element of patrix [407]; The upper end of column [402] also links with upper beam [403]; The invention is characterized in: the hydraulic brake that is contained on the bottom end rail [401] is passed in the lower end of column [402], this break by cylinder bottom have center hole cylinder body [414], have the cylinder cap [413] of center hole and the braking plate [412] that can be in cylinder body [414] radially moves be formed, cylinder body has oilhole C on [414], can lead to oil extremely by the outer side surface of braking plate [412] and the master cylinder that inner chamber constituted [411] of cylinder body [414], column [402] can be reciprocating in this break, and can be braked or throw off at any time.
Before hydraulic press was started working, the K hole pressure release of clutch release slave cylinder, the oil-feed of G hole made upwards backhaul of piston [404]; The C hole pressure release of break; The B hole oil-feed of kicker cylinder [410] makes upper beam [403] and patrix [407] be positioned at upper dead center S.
When work cycle begins, the B hole pressure release of kicker cylinder [410], this moving element of upper beam [403] is owing to deadweight moves downward, until covering idle stroke H
1, and the stroke H that starts working
2The time (E point among the figure), high pressure oil is advanced to master cylinder [411] in the C hole of break, act on braking plate [412], braking plate [412] is moved radially, column [402] is braked tightly, then, high pressure oil is advanced in the pressure release of G hole, the K hole of clutch release slave cylinder [405], piston [404] stresses on patrix [407] downwards, makes the blank between patrix [407] and the counterdie [408] be pressed into finished product, until working stroke H
2Till the end (F point among the figure).At last, K hole and all pressure releases of C hole, braking plate [412] and column [402] are thrown off, G hole and all oil-feeds of B hole, upwards backhaul of the piston of clutch release slave cylinder [404]; Simultaneously, the piston [409] in the kicker cylinder [410] is upwards backhaul also, makes upper beam [403] get back to initial position S in the idle stroke with patrix [407], and work cycle finishes.
As shown in Figure 5, the mold closing mechanism of a kind of injection machine and die casting machine, its frame is made of moving pattern plate [503], pull bar [502] and platen [501], liftout cylinder [504,505,506] is housed on moving pattern plate [503], and dynamic model [507] and cover half [508] are contained in respectively on moving pattern plate [503] and the platen [501]; In two outsides of platen [501] closing cylinder [510] is housed, the right-hand member and the moving pattern plate [503] of the piston [509] in this cylinder link, and the left and right end of closing cylinder [510] has oilhole B and D; The right-hand member of pull bar [502] also is connected with moving pattern plate [503], its left end passes the hydraulic brake that is contained on the platen [501], this break by cylinder bottom have center hole cylinder body [514], have the cylinder cap [513] of center hole and the braking plate [512] that can be in cylinder body [514] radially moves be formed, cylinder body has oilhole C on [514], can lead to oil extremely by the outer side surface of braking plate [512] and the master cylinder that inner chamber constituted [511] of cylinder body [514], pull bar [502] can be reciprocating in this break, and can be braked or throw off at any time; The invention is characterized in: the left end at break cylinder body [514] also has a voltage stabilizing cylinder, it is made up of cylinder body [518], the cylinder cap [517] that has center hole and piston [516], here, piston [516] is made of one with break cylinder body [514], and voltage stabilizing cylinder cylinder body [518] is made of one with platen [501], oilhole N is arranged on the casing wall, can lead to the voltage stabilizing cylinder [515] that oil is constituted to inner chamber and piston [516] by cylinder body [518].
Before the work beginning, all pressure releases of N hole of the D hole of closing cylinder [510] right-hand member, the C hole of break and voltage stabilizing cylinder, the B hole oil-feed of closing cylinder [510] left end makes moving pattern plate [503] and dynamic model [507] thereof be in the starting point S of idle stroke, shown in the first half of Fig. 5.
When work cycle begins, the B hole pressure release of closing cylinder [510] left end, the D hole oil-feed of right-hand member, piston [509] is being with moving pattern plate [503], dynamic model [507] and pull bar [502] to left movement, until covering idle stroke H
1, stroke H starts working
2The time (E point among the figure), high pressure oil is advanced in the C hole of master cylinder, pull bar [502] is braked, then, high pressure oil is advanced in the N hole of voltage stabilizing cylinder, act on the end face of piston [516], make pull bar [502] that whole break [512,513,514] and it brakes, moving pattern plate [503] that pull bar connected and the dynamic model [407] on the moving pattern plate [503] all together to left movement, until working stroke H
2Finish (F point among the figure), shown in the Lower Half of Fig. 5.Then, D hole, the pressure release of N hole, the oil-feed of B hole promotes closing cylinder piston [509] with moving pattern plate [503], pull bar [502] and whole break [512,513,514] all together to the right backhaul of braking on pull bar [502], and the oil in the voltage stabilizing cylinder [515] is flow back to fuel tank through the N hole; When the piston [516] of voltage stabilizing cylinder when getting back to cylinder bottom, the C hole pressure release of break, braking plate [512] is thrown off with pull bar [502]; Oil-feed is continued in the B hole, promotes moving pattern plate [503] and continues the starting point S of backhaul to the right to idle stroke, and work cycle finishes.
Claims (4)
1. the oil hydraulic cylinder on the hydraulic press, form by cylinder barrel [206], piston [207] and cylinder cap [202,203], it is characterized in that: cylinder barrel [206] does not have fixing cylinder bottom, can be by hydraulic brake [210,211,212] braking or the movable cylinder bottom [208] of throwing off and have; This hydraulic brake by cylinder body [211], have the cylinder cap [212] of center hole [213] and the braking plate [210] that can be in cylinder body [211] radially moves be formed, cylinder body has oilhole C on [211], can lead to oil to by the outer side surface of braking plate [210] and the master cylinder that inner chamber constituted [216] of cylinder body [211], hydraulic brake is fixed on the upper-end surface of the flange [217] that is made of one with cylinder barrel [206] with one group of bolt [215] and nut [214]; This activity cylinder bottom [208] is not fixedlyed connected with cylinder barrel [206], and be made of one with brake rod [209], and center oilhole A is arranged, brake rod [209] passes the inner side surface of braking plate [210] and the center hole [213] of cylinder cap [212], can be reciprocating in break, and can be braked or throw off at any time.
2. hydraulic press, its frame is made of bottom end rail [301], column [302], moved cross beam [303] and upper beam [305], in the both sides of upper beam [305] kicker cylinder [310] is housed, the lower end and the moved cross beam [303] of the piston [309] in this cylinder link, and there is oilhole B the lower end of kicker cylinder [310]; It is characterized in that: on upper beam [305], hydraulic brake is installed, this break by cylinder bottom have center hole cylinder body [307], have the cylinder cap [304] of center hole and the braking plate [306] that can be in cylinder body [307] radially moves be formed, cylinder body has oilhole C on [307], can lead to oil extremely by the outer side surface of braking plate [306] and the master cylinder that inner chamber constituted [311] of cylinder body [307]; The clutch release slave cylinder of machine is installed on the top of moved cross beam [303], and it is made up of cylinder barrel [313], the cylinder cap [312] that has center hole and movable cylinder bottom [314]; Movable cylinder bottom [314] and brake rod [308] are made of one, its center has oilhole A to pass straight through to the lower end surface of movable cylinder bottom [314], brake rod [308] passes the inner side surface of clutch release slave cylinder cylinder cap [312], break cylinder cap [304], braking plate [306] and the cylinder bottom of break cylinder body [307], can be reciprocating in break, and can be braked or throw off at any time.
3. hydraulic press, its frame is made of upper beam [403], column [402] and bottom end rail [401], the clutch release slave cylinder of hydraulic press is housed on upper beam [403], it is made up of cylinder body [405], piston [404] and the cylinder cap [406] that has a center hole, there are oilhole K and G in the top and bottom of cylinder body [405], the lower end of piston [404] is passed cylinder cap [406] and directly is connected with patrix [407], and counterdie [408] is contained on the bottom end rail [401]; In two outsides of bottom end rail [401] kicker cylinder [410] is housed, the upper end and the upper beam [403] of the piston [409] in this cylinder link, and there is oilhole B the lower end of kicker cylinder [410]; The upper end of column [402] also links with upper beam [403]; The invention is characterized in: the hydraulic brake that is contained on the bottom end rail [401] is passed in the lower end of column [402], this break by cylinder bottom have center hole cylinder body [414], have the cylinder cap [413] of center hole and the braking plate [412] that can be in cylinder body [414] radially moves be formed, cylinder body has oilhole C on [414], can lead to oil extremely by the outer side surface of braking plate [412] and the master cylinder that inner chamber constituted [411] of cylinder body [414], column [402] can be reciprocating in this break, and can be braked or throw off at any time.
4. the mold closing mechanism of injection machine and die casting machine, its frame is made of moving pattern plate [503], pull bar [502] and platen [501], liftout cylinder [504,505,506] is housed on moving pattern plate [503], and dynamic model [507] and cover half [508] are contained in respectively on moving pattern plate [503] and the platen [501]; In two outsides of platen [501] closing cylinder [510] is housed, the right-hand member and the moving pattern plate [503] of the piston [509] in this cylinder link, and the left and right end of closing cylinder [510] has oilhole B and D; The right-hand member of pull bar [502] also is connected with moving pattern plate [503], its left end passes the hydraulic brake that is contained on the platen [501], this break by cylinder bottom have center hole cylinder body [514], have the cylinder cap [513] of center hole and the braking plate [512] that can be in cylinder body [514] radially moves be formed, cylinder body has oilhole C on [514], can lead to oil extremely by the outer side surface of braking plate [512] and the master cylinder that inner chamber constituted [511] of cylinder body [514], pull bar [502] can be reciprocating in this break, and can be braked or throw off at any time; The invention is characterized in: the left end at break cylinder body [514] also has a voltage stabilizing cylinder, it is made up of cylinder body [518], the cylinder cap [517] that has center hole and piston [516], here, piston [516] is made of one with break cylinder body [514], and voltage stabilizing cylinder cylinder body [518] is made of one with platen [501], oilhole N is arranged on the casing wall, can lead to the voltage stabilizing cylinder [515] that oil is constituted to inner chamber and piston [516] by cylinder body [518].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021118582A CN100390443C (en) | 2002-05-28 | 2002-05-28 | Energy-saving hydraulic machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021118582A CN100390443C (en) | 2002-05-28 | 2002-05-28 | Energy-saving hydraulic machinery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1461900A CN1461900A (en) | 2003-12-17 |
| CN100390443C true CN100390443C (en) | 2008-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB021118582A Expired - Fee Related CN100390443C (en) | 2002-05-28 | 2002-05-28 | Energy-saving hydraulic machinery |
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| CN (1) | CN100390443C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133784B (en) * | 2010-12-22 | 2013-06-12 | 绍兴县皇冠机械有限公司 | Rotary oil distribution hydraulic oil way system for plastic bottle cover molding press |
| CN108799353A (en) * | 2017-05-02 | 2018-11-13 | 天津市松正电动汽车技术股份有限公司 | Air pressure clutch actuator |
| CN114215907B (en) * | 2021-12-24 | 2023-04-11 | 江苏经贸职业技术学院 | Dual-motor control hydraulic brake with parking function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62165006A (en) * | 1986-01-16 | 1987-07-21 | Ishikawajima Harima Heavy Ind Co Ltd | Step cylinder |
| JPS636270A (en) * | 1986-06-23 | 1988-01-12 | Smc Corp | Pneumatic cylinder capable of altering double end stopping position |
| CN1069447A (en) * | 1992-06-24 | 1993-03-03 | 陕西工学院 | Hydraulic machine with compensation of main-cylinder stroke |
| CN1095984A (en) * | 1993-06-05 | 1994-12-07 | 戴瑞乐 | Hydraulic press for pressing powder |
| CN2246206Y (en) * | 1996-02-02 | 1997-01-29 | 李西兰 | Piston plunger-type extension hydrautic oil cylinder |
-
2002
- 2002-05-28 CN CNB021118582A patent/CN100390443C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62165006A (en) * | 1986-01-16 | 1987-07-21 | Ishikawajima Harima Heavy Ind Co Ltd | Step cylinder |
| JPS636270A (en) * | 1986-06-23 | 1988-01-12 | Smc Corp | Pneumatic cylinder capable of altering double end stopping position |
| CN1069447A (en) * | 1992-06-24 | 1993-03-03 | 陕西工学院 | Hydraulic machine with compensation of main-cylinder stroke |
| CN1095984A (en) * | 1993-06-05 | 1994-12-07 | 戴瑞乐 | Hydraulic press for pressing powder |
| CN2246206Y (en) * | 1996-02-02 | 1997-01-29 | 李西兰 | Piston plunger-type extension hydrautic oil cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1461900A (en) | 2003-12-17 |
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Assignee: Hefei HaiDe Hydraulic Press Co., Ltd. Assignor: Liu Shixiong Contract fulfillment period: 2009.6.26 to 2015.6.26 contract change Contract record no.: 2009340000112 Denomination of invention: Energy-saving hydraulic machinery Granted publication date: 20080528 License type: Exclusive license Record date: 2009.6.30 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.6.26 TO 2015.6.26; CHANGE OF CONTRACT Name of requester: HEFEI HAIDE HYDRAULIC PRESS CO. LTD. Effective date: 20090630 |
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Assignee: Hefei HaiDe Hydraulic Press Co., Ltd. Assignor: Liu Shixiong Contract record no.: 2009340000112 Date of cancellation: 20100705 |
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Assignee: Shanghai Xinchangxin Enterprise Development Co., Ltd. Assignor: Liu Shixiong Contract record no.: 2010310000112 Denomination of invention: Energy-saving hydraulic machinery Granted publication date: 20080528 License type: Exclusive License Open date: 20031217 Record date: 20100716 |
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