CN1455119A - Hydraulic transformer - Google Patents
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- CN1455119A CN1455119A CN 03129072 CN03129072A CN1455119A CN 1455119 A CN1455119 A CN 1455119A CN 03129072 CN03129072 CN 03129072 CN 03129072 A CN03129072 A CN 03129072A CN 1455119 A CN1455119 A CN 1455119A
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Abstract
The present invention discloses a hydraulic pressure changer, formed from shell, front end cover, rotating shaft, plunger, cylinder, port plate and rear end cover. According to the working principle of hydraulic pressure changer it utilizes the control of rotating angle of port plate of said hydraulic pressure change, regulation of flow rate change of three oil holes of the pressure changer and further control of output pressure of the pressure changer to drive lienar load or rotary load to make it move. By adopting special port plate and rear end cover structure said invention can resolve the oil liquor throttling loss between the port plate and rear end cover, exaggerate the pressure-regulating ratio range of hydraulic pressure changer and can make it implement the functions of regulating pressure.
Description
Technical field
The present invention relates to hydraulic element, specifically a kind of hydraulic transformer.
Background technique
The constant pressure network secondary regulation technology that developed recently gets up has improved the flexibility and the efficient of hydraulic system.But, although many advantages are arranged on the secondary Principles of Regulation, it has been subjected to certain restriction in the application of Hydraulic Field.Aspect rotary driving load,, realize the driving of rotation load by the controlling mechanism of Moderator Variable oil hydraulic motor.And driving the straight line load that different loads pressure requires, traditional method is by a throttling control mode, because there is bigger pressure difference in the throttling control mode, so this control mode has been brought bigger energy loss.How the energy with constant pressure network sends out with certain pressure noenergy loss ground as power transformer, mechanic gear device, the technical background of hydraulic transformer generation that Here it is.
Traditional hydraulic transformer is the form of the coaxial connection of pump-motor, by the discharge capacity of Moderator Variable motor, oil supply pressure is gone out with certain propagation of pressure, can realize the function of hydraulic transformer.But this hydraulic transformer owing to be two devices together by mechanical connection, thereby volume, weight are all very big, the controlling mechanism required drive of variable displacement motor is bigger, the cost height, efficient is low, has influenced its application.
At Achten P A J.hydraulic transformer.WO 97/31185, a kind of novel hydraulic design of transformer notion has been proposed in 1997 patents, compare with the conventional hydraulic transformer, the type transformer gathers oil hydraulic motor function, pumping function, formed an independent displacement devices, it has the following advantages:
(1) as the pressure transformer, it can not be adjusted into network pressure the arbitrary value in the pressure range with having restriction loss.
(2) transformer transformation process is reversible, can export energy to load, also can be from load to the accumulator recovered energy.
(3) the hydraulic transformer volume is little, in light weight, and dynamic response is fast, by changing the angle of swing of thrust plate, can control flow-rate ratio, pressure ratio between oil sources and load.
Although have lot of advantages on the hydraulic transformer principle, hydraulic transformer be developed into the hydraulic element of a practicality, also to solve many problems.In this patent, only considered thrust plate and cylinder body this to the relation between the flow pair, and do not consider thrust plate and rear end cover this to the flow pair to the hydraulic transformer Effect on Performance.
In this patent, thrust plate kidney slot at hydraulic transformer is consistent with rear end cover interface shape, when the rotating flow distribution dish, increase along with angle of swing, A, the B of thrust plate A, B, T groove and rear end cover, the fluid flow area between the T interface reduce gradually, fluid restriction loss between thrust plate and the rear end cover increases, and the The Energy Conservation of Transformer effect reduces; When the thrust plate angle of swing increases to certain value, the A groove of thrust plate is communicated with B mouth groove with A mouth, T groove with T mouth, the B groove of rear end cover, cause the forfeiture of transformer function.Thereby according to the hydraulic transformer of this patent design, the transformer pressure regulation is littler than scope, the bigger problem of noise during operation.
At Achten P A J.Apparatus for executing activities assisted by hydromotors anda hydraulic transformer for use in such an apparaturs.WO99/40318, in 12 August, 1999 patents, the structure of hydraulic transformer is improved.In this patent, the high-pressure mouth of thrust plate front-end face is guided to the central position of thrust plate ear end face, the invariant position of other two notches, the notch of rear end cover has also been done corresponding adjustment simultaneously, the pressure regulation of hydraulic transformer is improved than scope, but still very limited, and between rear end cover and thrust plate, there is the energy loss of fluid.In this patent, 4 notches of rear end cover link to each other with the low pressure oil circuit with two load oil circuits respectively by selector valve, have increased the complexity of hydraulic transformer structure.In this patent, in order to prevent the inclination of thrust plate, used a rolling bearing that radial dimension is bigger simultaneously, this has increased the volume of hydraulic transformer.
At Endsley, John, c.Hydraulic pressure transformer.WO 00/28211, in 18 May, 2000 patents, propose to replace thrust plate and rolling bearing, the size of hydraulic transformer is reduced with the thrust plate piece of hydrostatic support formula structure, in this structure hydraulic transformer, at first need a plate to carry out sealed connection by screw thread and thick end cap, the disconnected lid in back connects with housing more then, and this has increased the complexity of hydraulic transformer.
Summary of the invention
The object of the present invention is to provide a kind of hydraulic transformer, the position and the shape of reasonably having distributed each oil circuit notch of thrust plate and rear end cover, can positive and negative both direction rotating flow distribution dish, oil supply pressure can be adjusted to arbitrary value, and noenergy is lost, and has reduced the noise of hydraulic transformer simultaneously.
In order to achieve the above object, the technical solution used in the present invention is as follows:
1) end of the housing of clino-axis type is connected with rear end cover, the other end of clino-axis type housing is connected with front cover, constitute the hydraulic transformer sealing cavity volume of clino-axis type, running shaft one end that is contained in the clino-axis type housing is connected with output terminal on being installed in front cover, the axis of central shaft and the axes intersect of running shaft, thrust plate are contained between cylinder body and the rear end cover; Be hinged at one end of the central shaft on the cylinder body on the end of running shaft, the other end of central shaft is installed in elongated hole place, thrust plate front-end face center, plunger is housed on the cylinder body, plunger and connecting rod connect by ball pivot, connecting rod one end and running shaft connect by ball pivot, thrust plate is meshed with small gear by the gear on it, and gear is connected with controlling rod on the rear end cover by linking bond;
2) have the identical high pressure kidney slot mouth of shape, load kidney slot mouth, fuel tank kidney slot mouth on the same circle of thrust plate front-end face, can be connected with one or several plunger window of cylinder body respectively, have gear on the thrust plate circumferential direction, be meshed with small gear on being contained in controlling rod;
3) the high pressure kidney slot mouth on the thrust plate is received the circular notch of high pressure at thrust plate ear end face center by hyperbaric chamber, and thrust plate has the elongated hole that is communicated with hyperbaric chamber respectively on circumferential surface and another circumferential surface; Load kidney slot mouth on the thrust plate is received the load notch of thrust plate ear end face by load cavity, and thrust plate has the elongated hole that is communicated with load cavity at circumferential surface and another circumferential surface respectively; Fuel tank kidney slot mouth on the thrust plate is received the fuel tank notch of thrust plate ear end face by the fuel tank chamber, and thrust plate has the elongated hole that is communicated with the fuel tank chamber at circumferential surface and another circumferential surface respectively; One circular groove is arranged on the thrust plate ear end face, four through holes are arranged in the circular groove; The oil groove that unloads of thrust plate ear end face face is a circular groove, is connected with the fuel tank notch;
4) have the pressure notch that three shapes have nothing in common with each other on the different radii of rear end cover, central notch is circular, communicates with the notch of thrust plate; The rear end cover notch is the peripheral annular groove, communicates with the notch of thrust plate, in circular groove, a kidney slot is arranged; Another rear end cover notch circular groove has the kidney slot that low pressure oil can be introduced or is drawn out in the notch in the notch; Central notch communicates with the high-pressure oil passage interface by the chamber of rear end cover, and the rear end cover notch communicates with load oil circuit interface by kidney slot wherein, and another rear end cover notch communicates with fuel tank oil circuit interface by vallecular cavity wherein;
5) high pressure oil is introduced by the hydraulic fluid port in the rear end cover, chamber through rear end cover, notch is connected with the hydraulic fluid port of thrust plate, high pressure oil is incorporated into the high-pressure mouth of the front-end face of thrust plate by the oil pocket of thrust plate, communicate with the plunger cavity window of cylinder body, oil in the plunger cavity communicates with the end face notch of thrust plate through the plunger cavity window, through load cavity, the load notch of thrust plate ear end face communicates with the notch of rear end cover, communicate with load oil circuit interface through kidney slot, fluid is discharged to load port or the fluid of load port is drawn into plunger cavity, when cylinder body rotates to oil in the plunger cavity when the plunger cavity window communicates with the notch of the end face of thrust plate, through the fuel tank chamber, the notch of thrust plate ear end face communicates with the notch of rear end cover, communicate with low pressure oil circuit interface through kidney slot again, fluid is discharged to the low pressure hydraulic fluid port or the fluid of low pressure hydraulic fluid port is drawn into plunger cavity, the annular shoulder of rear end capping matches with thrust plate, makes three grooves of another circumferential surface of thrust plate form hydrostatic support sealing load district; The supporting end face of housing matches with the thrust plate circumferential surface, makes three grooves of thrust plate circumferential surface form hydrostatic support sealing load district.
Thrust plate front-end face high-pressure mouth is received the central position of thrust plate ear end face, the load port of thrust plate front-end face leads directly to ear end face, the low pressure port of thrust plate front-end face is by the oblique ear end face notch of receiving in chamber, and the radial location of ear end face notch is greater than the radial location of notch.
The circular groove of said thrust plate ear end face is that the left and right angle of swing of control thrust plate is no more than 120 ° circular groove.
The useful effect that the present invention has is: owing to adopted special thrust plate and rear end cover structure, solved the fluid restriction loss between thrust plate and the rear end cover, scope is compared in the pressure regulation that has enlarged hydraulic transformer, hydraulic transformer is rotated in positive and negative both direction, polarizers of big angle scope, thereby make voltage regulation function, recovery loading functional, the power saving function of hydraulic transformer obtain maximum embodiment, also make the noise of hydraulic transformer obtain reduction simultaneously.The present invention makes the thrust plate more reasonable stress of hydraulic transformer because thrust plate has adopted the static pressure bearing type structure, regulates thrust plate and is more prone to.
Description of drawings
Fig. 1 is the system construction drawing of hydraulic transformer;
Fig. 2 is the partial structurtes sectional view of hydraulic transformer another location;
Fig. 3 is a thrust plate front-end face W1 view;
Fig. 4 is the I-I sectional drawing of thrust plate;
Fig. 5 is the I-II sectional drawing of thrust plate;
Fig. 6 is a thrust plate ear end face W2 view;
Fig. 7 is a rear end cover W2 face view;
Fig. 8 is a rear end cover III-III sectional view;
Fig. 9 is a rear end cover IV-IV sectional view.
Embodiment
As Fig. 1～shown in Figure 9, the present invention includes:
1) end of the housing 4 of clino-axis type is connected with rear end cover 11, the other end of clino-axis type housing 4 is connected with front cover 50, constitute the hydraulic transformer sealing cavity volume of clino-axis type, running shaft 6 one ends that are contained in the clino-axis type housing 4 are connected with output terminal 54 on being installed in front cover 50, the axes intersect of the axis of central shaft 15 and running shaft 6, thrust plate 7 are contained between cylinder body 1 and the rear end cover 11; Be hinged at 15 1 ends of the central shaft on the cylinder body 1 on the end of running shaft 6, the other end of central shaft 15 is installed in elongated hole 16 places, thrust plate front-end face center, plunger 2 is housed on the cylinder body 1, plunger 2 connects by ball pivot with connecting rod 3, connecting rod 3 one ends and running shaft 6 connect by ball pivot, thrust plate 7 is meshed with small gear 8 by the gear on it 28, and gear 8 is connected with controlling rod 13 on the rear end cover 11 by linking bond 9;
2) have the identical high pressure kidney slot mouth 19 of shape, load kidney slot mouth 20, fuel tank kidney slot mouth 21 on the same circle of thrust plate 7 front-end face W1, can be connected with one or several plunger window 18 of cylinder body respectively, have gear 28 on thrust plate 7 circumferential direction, be meshed the angle of swing of control thrust plate with the small gear 8 on being contained in controlling rod 13;
3) the high pressure kidney slot mouth 19 on the thrust plate 7 is received the circular notch 25 of high pressure at thrust plate ear end face W2 center by hyperbaric chamber 22, and thrust plate 7 has the elongated hole 29,29 ' that is communicated with hyperbaric chamber 22 respectively on circumferential surface 53 and another circumferential surface 53 '; Load kidney slot mouth 20 on the thrust plate 7 is received the load notch 26 of thrust plate ear end face W2 by load cavity 23, and thrust plate 7 has the elongated hole 31,31 ' that is communicated with load cavity 23 at circumferential surface 53 and another circumferential surface 53 ' respectively; Fuel tank kidney slot mouth 21 on the thrust plate 7 is guided to the fuel tank notch 27 of thrust plate ear end face W2 by fuel tank chamber 24, and thrust plate 7 has the elongated hole 33,33 ' that is communicated with fuel tank chamber 24 at circumferential surface 53 and another circumferential surface 53 ' respectively; On the thrust plate 7 ear end face W2 circular groove 35 is arranged, four through holes 36 are arranged in the circular groove 35; The oil groove 55 that unloads of thrust plate 7 ear end face W2 faces is a circular groove, is connected with fuel tank notch 27;
4) have the pressure notch 37,38,39 that three shapes have nothing in common with each other on the different radii of rear end cover 11, central notch 37 is circular, communicates with the notch 25 of thrust plate; Rear end cover notch 38 is the peripheral annular groove, communicates with the notch 26 of thrust plate, in circular groove 38, a kidney slot 41 is arranged; Another rear end cover notch 39 is the circular groove of the several angle and the degree of depth, has the kidney slot 42 that low pressure oil can be introduced or is drawn out in the notch 39 in the notch 39; Central notch 37 communicates with high-pressure oil passage interface 43 by the chamber 40 of rear end cover, and rear end cover notch 38 communicates with load oil circuit interface 45 by kidney slot 41 wherein, and another rear end cover notch 39 communicates with fuel tank oil circuit interface 45 by vallecular cavity 42 wherein;
5) high pressure oil is introduced by the hydraulic fluid port in the rear end cover 11 43, chamber 40 through rear end cover, notch 37 is connected with the hydraulic fluid port 25 of thrust plate 7, high pressure oil is incorporated into the high-pressure mouth 19 of the front-end face W1 of thrust plate 7 by the oil pocket 22 of thrust plate 7, communicate with the plunger cavity window 18 of cylinder body 1, oil in the plunger cavity 17 communicates with the end face W1 notch 20 of thrust plate 7 through plunger cavity window 18, through load cavity 23, the notch 26 of thrust plate ear end face W2 communicates with the notch 38 of rear end cover 11, communicate with load oil circuit interface 45 through kidney slot 41, fluid is discharged to load port or the fluid of load port is drawn into plunger cavity 17, when cylinder body 1 rotates to oil in the plunger cavity 17 when plunger cavity window 18 communicates with the notch 21 of the end face W1 of thrust plate 7, through fuel tank chamber 24, the notch 27 of thrust plate ear end face W2 communicates with the notch 39 of rear end cover, communicate with low pressure oil circuit interface 46 through kidney slot 42 again, fluid is discharged to the low pressure hydraulic fluid port or the fluid of low pressure hydraulic fluid port is drawn into plunger cavity 17, the annular shoulder 44 of rear end cover W2 face matches with thrust plate 7, makes three grooves 30 ' of thrust plate 7 another circumferential surfacies 53 ', 32 ', 34 ' forms hydrostatic support sealing load district; The supporting end face 52 of housing 4 matches with thrust plate 7 circumferential end faces 53, makes three grooves 30,32,34 of thrust plate 7 circumferential surfacies 53 form hydrostatic support sealing load district.
The central position that thrust plate front-end face W1 high-pressure mouth 19 is received thrust plate ear end face W2, the load port 20 straight-through ear end face W2 of thrust plate front-end face W1, the low pressure port 21 of thrust plate front-end face W1 is by the chamber 24 oblique ear end face W2 notches 27 of receiving, and the radial location of notch 27 is greater than the radial location of notch 26.
The circular groove 35 of said thrust plate 7 ear end face W2 is that the left and right angle of swing of control thrust plate is no more than 120 ° circular groove.
As shown in Figure 1, housing 4 links by lock screw 10 with rear end cover 11, and housing 4 connects with front cover 50 with back-up ring 51 mutually by elongated hole, thereby constitutes the hydraulic transformer sealing cavity volume of clino-axis type.Running shaft 6 is installed on the bearing 5.On the cylinder body 1 centre axle 15, the axes intersect of the axis of central shaft 15 and running shaft 6 forms clino-axis type.One end of central shaft 15 is hinged on the running shaft 6, and the other end is installed in elongated hole 16 places, thrust plate front-end face center.Plunger 2 and connecting rod 3 are bound up by ball pivot, and connecting rod 3 one ends and running shaft 6 are by the ball pivot connection, and plunger 2 one ends are placed in the plunger cavity 17 of cylinder body 1.Thrust plate 7 is placed between cylinder body 1 and the rear end cover 11, cooperates with cylinder body 1 to form seal face W1, cooperates with rear end cover 11 to form seal face W2.Thrust plate 7 is meshed with small gear 8 by the gear on it 28, and small gear 8 connects with controlling rod 13 by linking bond 9.Controlling rod 13 is placed in the axle sleeve 12, and axle sleeve 12 connects with rear end cover 11 by screw thread.Output terminal 54 is for measuring and control the rotating speed of hydraulic transformer.In Fig. 1, high pressure oil is introduced by the hydraulic fluid port in the rear end cover 11 43, link to each other with the hydraulic fluid port 25 of thrust plate 7 through chamber 40, the notch 37 of rear end cover, the oil pocket 22 by thrust plate 7 is incorporated into the high-pressure mouth 19 of the front-end face W1 of thrust plate 7 with high pressure oil, communicates with the plunger cavity window 18 of cylinder body 1.
Be the partial structurtes sectional view of hydraulic transformer another location as shown in Figure 2.Among the figure, oil in plunger cavity 17 communicates with the end face W1 notch 20 of thrust plate 7 through plunger cavity window 18, through load cavity 23, the load notch 26 of thrust plate ear end face W2 communicates with the notch 38 of rear end cover 11, communicate with load oil circuit interface 45 through kidney slot 41, fluid is discharged to load port or the fluid of load port is drawn into plunger cavity 17.When cylinder body 1 rotates to the oil in the plunger cavity 17 when plunger cavity window 18 communicates with the notch 21 of the end face W1 of thrust plate 7, notch 27 through fuel tank chamber 24, thrust plate ear end face W2 communicates with the notch 39 of rear end cover, communicate with low pressure oil circuit interface 46 through kidney slot 42 again, fluid is discharged to the low pressure hydraulic fluid port or the fluid of low pressure hydraulic fluid port is drawn into plunger cavity 17.The supporting end face 52 of housing 4 forms the fluid sealing strip with the shaft shoulder of thrust plate 7 53, and the shoulder 44 of rear end cover forms the fluid sealing strip with the shaft shoulder of thrust plate 7 53 '.
Be illustrated in figure 3 as the front-end face W1 of thrust plate 7, have three kidney slot mouths 19,20,21 that shape is identical, match with one or several plunger window 18 of cylinder body respectively.The central distribution of three kidney slot mouths 19,20,21 is on same circle.Notch 19 communicates with high pressure fuel source, and notch 20 communicates with the load oil circuit, and notch 21 communicates with fuel tank.Have gear 28 on the thrust plate circumferential direction,, carry out the angle of swing control of thrust plate so that be meshed with small gear 8.
The I-I that is illustrated in figure 4 as thrust plate 7 is to sectional drawing.Among the figure, thrust plate notch 19 is guided to thrust plate ear end face W2 central circular notch 25 by hyperbaric chamber 22, thrust plate notch 20 is guided to the notch 26 of thrust plate ear end face W2 by load cavity 23, by elongated elongated hole 29 and 29 ' high pressure oil is drawn out to the groove 30 and 30 ' of thrust plate circumferential surface 53 and 53 ' from hyperbaric chamber 22, forms the static pressure oil film supporting of high pressure oil source.23 are drawn out to the groove 32 and 32 ' of thrust plate circumferential end faces by elongated elongated hole 31 and 31 ' with load oil from the chamber, form load side static pressure oil film supporting.35 is the restraining groove of certain depth, and the centre has logical elongated hole 36.
Be illustrated in figure 5 as thrust plate I-II to sectional drawing.Thrust plate notch 21 is guided to the notch 27 of thrust plate ear end face W2 by fuel tank chamber 24, and 24 are drawn out to the groove 34 and 34 ' of thrust plate circumferential end faces 53 and 53 ' by elongated elongated hole 33 and 33 ' with high pressure oil from the chamber, form the static pressure film lubrication of low voltage side.
Thrust plate end face W2 view as shown in Figure 6.The notch 19 of thrust plate front-end face W1 is incorporated into the notch 25 of ear end face W2, the notch 20 of thrust plate front-end face W1 is incorporated into the notch 26 of ear end face W2, the notch 21 of thrust plate front-end face W1 is incorporated into the notch 27 of ear end face W2, on, the center of notch 25,26,27 is respectively on the distribution circle of different radii, and the shape of each notch is all inequality, and notch 25 is a circle, and 26,27 are respectively two annular notches that vary in size.Unloading oil groove 55 is a circular groove, be connected with low pressure notch 27, help high pressure oil groove 25 and load oil groove 26 are formed required pressure place, guarantee to form oil film hydrostatic support preferably between rear end cover 11 and the thrust plate 7, guarantee that also the fluid that high pressure oil groove and load oil groove leak out is recovered to low pressure port 27 well simultaneously.Have 200 ° circular groove 35 at thrust plate end face W2, purpose is that restriction thrust plate left rotation and right rotation angle surpasses 120 °, has 4 smaller little elongated hole of diameter in groove 35, and purpose is that the fluid that will leak is drawn out in the housing.
The hydrostatic support groove 30 ', 30 of circumferential surface, 32 ', 32,34 ', 34 is several angle and not connected thrust plate peripheral groove, because the hydrostatic support groove 30 ' of circumferential surface, 30 pressure are from high-pressure trough 22, the hydrostatic support groove 32 ' of circumferential surface, 32 pressure are from load groove 23, the hydrostatic support groove 34 ' of circumferential surface, 34 pressure is from low pressure notch 24, and this only is different from the traditional hydrostatic support from an oil supply pressure.Thrust plate 7 adopts the hydrostatic support of this form, not only saved extra pressure source, can make simultaneously the hydrostatic support groove 30 ', 30 of circumferential surface, 32 ', 32,34 ', 34 supporting forces that produce offset 4 pairs of cylinder bodies in each notch pressure area of thrust plate 7 to the tilting moment that thrust plate produces, prevent the inclination of thrust plate.Because thrust plate adopts hydrostatic support formula structure, has saved a rolling bearing that radial dimension is very big, thereby has made that the physical dimension of hydraulic transformer is reduced.
Be illustrated in figure 7 as rear end cover W2 face view.Three pressure notches, 37,38,39 shapes of rear end cover have nothing in common with each other, and their central distribution is on different radiuses simultaneously.Notch 37 is a circle, communicates with the notch 22 of thrust plate.Rear end cover notch 38 is the peripheral annular groove of certain depth, communicate with the notch 26 of thrust plate, in circular groove 38, a kidney slot 41 is arranged, purpose is to introduce or draw load oil for notch 38, and load oil be discharged or be sucked to the notch 26 of thrust plate 7 can in no restriction loss ground in 360 ° of scopes like this.Rear end cover notch 39 is the circular groove of the several angle and the degree of depth, has a kidney slot 42 in the notch 39, and purpose is that low pressure oil is introduced or is drawn out in the groove 39.Groove 48 in the rear end cover is used for adorning O-ring seals, guarantees the sealing between rear end cover 11 and the housing 4.Rear end cancelling elongated hole 47 is used for installing thrust plate position limit pin 14, unites use with the restraining groove 35 of thrust plate 7, and the angle of swing that prevents thrust plate is above 120 °.
Be illustrated in figure 8 as rear end cover III-III sectional drawing.Central notch 37 communicates with high-pressure oil passage interface 43 by chamber 40, so that be that thrust plate 7 sucks or discharge high pressure oil.The circular elongated hole 49 of rear end cover is used for installing axle sleeve 12, by being threaded, and guarantees between the two sealing with the O RunddichtringO between circular elongated hole 49 and the axle sleeve 12.
Be illustrated in figure 9 as rear end cover IV-IV sectional drawing.Rear end cover notch 38 communicates with load oil circuit interface 45 by kidney slot 41 wherein, so that be that load oil is discharged or introduced to thrust plate 7.Rear end cover notch 39 communicates with fuel tank oil circuit interface 46 by vallecular cavity 42 wherein, so that draw or introduce low pressure oil for thrust plate 7.The annular shoulder 44 of rear end cover W2 face by matching with thrust plate 7, guarantees to form hydrostatic support sealing load district at three grooves 30 ', 32 ', 34 ' of thrust plate 7 circumferential surfacies 53 '.
Claims (3)
1. hydraulic transformer is characterized in that it comprises:
1) end of the housing of clino-axis type (4) is connected with rear end cover (11), the other end of clino-axis type housing (4) is connected with front cover (50), constitute the hydraulic transformer sealing cavity volume of clino-axis type, running shaft (6) one ends that are contained in the clino-axis type housing (4) are connected with output terminal (54) on being installed in front cover (50), the axes intersect of the axis of central shaft (15) and running shaft (6), thrust plate (7) are contained between cylinder body (1) and the rear end cover (11); Be hinged on the end of running shaft (6) at (15) one ends of the central shaft on the cylinder body (1), the other end of central shaft (15) is installed in thrust plate front-end face center elongated hole (16) and locates, plunger (2) is housed on the cylinder body (1), plunger (2) connects by ball pivot with connecting rod (3), connecting rod (3) one ends and running shaft (6) connect by ball pivot, thrust plate (7) is meshed with small gear (8) by the gear on it (28), and gear (8) is connected with controlling rod (13) on the rear end cover (11) by linking bond (9);
2) have the identical high pressure kidney slot mouth (19) of shape, load kidney slot mouth (20), fuel tank kidney slot mouth (21) on the same circle of thrust plate (7) front-end face (W1), can be connected with one or several plunger window (18) of cylinder body respectively, have gear (28) on thrust plate (7) circumferential direction, be meshed with small gear (8) on being contained in controlling rod (13);
3) the high pressure kidney slot mouth (19) on the thrust plate (7), receive the circular notch (25) of high pressure at thrust plate ear end face (W2) center by hyperbaric chamber (22), thrust plate (7) has the elongated hole (29,29 ') that is communicated with hyperbaric chamber (22) respectively on circumferential surface (53) and another circumferential surface (53 '); Load kidney slot mouth (20) on the thrust plate (7) is received the load notch (26) of thrust plate ear end face (W2) by load cavity (23), and thrust plate (7) has the elongated hole (31,31 ') that is communicated with load cavity (23) at circumferential surface (53) and another circumferential surface (53 ') respectively; Fuel tank kidney slot mouth (21) on the thrust plate (7) is received the fuel tank notch (27) of thrust plate ear end face (W2) by fuel tank chamber (24), and thrust plate (7) has the elongated hole (33,33 ') that is communicated with fuel tank chamber (24) at circumferential surface (53) and another circumferential surface (53 ') respectively; One circular groove (35) is arranged on thrust plate (7) ear end face (W2), four through holes (36) are arranged in the circular groove (35); The oil groove (55) that unloads of thrust plate (7) ear end face (W2) face is a circular groove, is connected with fuel tank notch (27);
4) have the pressure notch (37,38,39) that three shapes have nothing in common with each other on the different radii of rear end cover (11), central notch (37) is circular, communicates with the notch (25) of thrust plate; Rear end cover notch (38) is the peripheral annular groove, communicates with the notch (26) of thrust plate, in circular groove (38), a kidney slot (41) is arranged; Another rear end cover notch (39) is a circular groove, has the kidney slot (42) that low pressure oil can be introduced or is drawn out in the notch (39) in the notch (39); Central notch (37) communicates with high-pressure oil passage interface (43) by the chamber (40) of rear end cover, rear end cover notch (38) communicates with load oil circuit interface (45) by kidney slot (41) wherein, and another rear end cover notch (39) communicates with fuel tank oil circuit interface (45) by kidney slot (42) wherein;
5) high pressure oil is introduced by the high-pressure oil passage interface (43) in the rear end cover (11), chamber (40) through rear end cover, central notch (37) is connected with the hydraulic fluid port (25) of thrust plate, high pressure oil is incorporated into the high-pressure mouth (19) of the front-end face (W1) of thrust plate (7) by the oil pocket (22) of thrust plate (7), communicate with the plunger cavity window (18) of cylinder body (1), oil in the plunger cavity (17) communicates with end face (W1) notch (20) of thrust plate (7) through plunger cavity window (18), through load cavity (23), the load notch (26) of thrust plate ear end face (W2) communicates with the notch (38) of rear end cover (11), communicate with load oil circuit interface (45) through kidney slot (41), fluid is discharged to load port or the fluid of load port is drawn into plunger cavity (17), when cylinder body (1) rotates to oil in the plunger cavity (17) through the notch (21) of plunger cavity window (18) and the end face (W1) of thrust plate (7) when communicating, through fuel tank chamber (24), the notch (27) of thrust plate ear end face (W2) communicates with the notch (39) of rear end cover, communicate with low pressure oil circuit interface (46) through kidney slot (42) again, fluid is discharged to the low pressure hydraulic fluid port or the fluid of low pressure hydraulic fluid port is drawn into plunger cavity (17), the annular shoulder (44) of rear end cover (W2) face matches with thrust plate (7), makes three grooves (30 ' of another circumferential surface (53 ') of thrust plate (7), 32 ', 34 ') form hydrostatic support sealing load district; The supporting end face (52) of housing (4) matches with thrust plate (7) circumferential surface (53), makes three grooves (30,32,34) of thrust plate (7) circumferential surface (53) form hydrostatic support sealing load district.
2. a kind of hydraulic transformer according to claim 1, it is characterized in that: thrust plate front-end face (W1) high-pressure mouth (19) is received the central position of thrust plate ear end face (W2), the load port (20) of thrust plate front-end face (W1) leads directly to ear end face (W2), the low pressure port (21) of thrust plate front-end face (W1) is by chamber (24) oblique ear end face (W2) notch (27) of receiving, and the radial location of ear end face (W2) notch (27) is greater than the radial location of notch (26).
3. a kind of hydraulic transformer according to claim 1 is characterized in that: the circular groove (35) of said thrust plate (7) ear end face (W2) is that the left and right angle of swing of control thrust plate is no more than 120 ° circular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03129072 CN1187531C (en) | 2003-06-02 | 2003-06-02 | Hydraulic transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03129072 CN1187531C (en) | 2003-06-02 | 2003-06-02 | Hydraulic transformer |
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| CN1455119A true CN1455119A (en) | 2003-11-12 |
| CN1187531C CN1187531C (en) | 2005-02-02 |
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| CN 03129072 Expired - Fee Related CN1187531C (en) | 2003-06-02 | 2003-06-02 | Hydraulic transformer |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101238290B (en) * | 2005-08-04 | 2010-07-14 | 林德股份公司 | Displacer unit with a valve plate body |
| CN103016430A (en) * | 2012-12-21 | 2013-04-03 | 哈尔滨工业大学 | Swash plate piston hydraulic transformer controlled by swing hydraulic motor |
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| CN103671304A (en) * | 2013-12-23 | 2014-03-26 | 哈尔滨理工大学 | Integrated hydraulic transformer |
| CN104989636A (en) * | 2015-08-11 | 2015-10-21 | 贵阳海之力液压有限公司 | Port plate of swash plate type plunger pump and motor and matching cylinder body thereof |
| CN105186761A (en) * | 2015-06-17 | 2015-12-23 | 浙江大学 | Oblique shaft supporting device |
| CN105650041A (en) * | 2016-01-28 | 2016-06-08 | 吉林大学 | Double-variable symmetric hydraulic transformer |
| CN105864124A (en) * | 2016-05-04 | 2016-08-17 | 太原科技大学 | Hydraulic pressure transformer with two cylinder bodies |
| CN106368811A (en) * | 2016-08-26 | 2017-02-01 | 北京理工大学 | Valve plate and hydraulic output mechanism for engine and engine |
| CN106837780A (en) * | 2015-12-07 | 2017-06-13 | 熵零股份有限公司 | One kind commutation displacement type hydraulic mechanism |
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| CN1300470C (en) * | 2004-09-30 | 2007-02-14 | 宁波华液机器制造有限公司 | Hydraulic cylinder controlled hydraulic transformer |
| CN101233320B (en) * | 2005-08-02 | 2010-05-19 | 林德股份公司 | Power device |
| CN101238290B (en) * | 2005-08-04 | 2010-07-14 | 林德股份公司 | Displacer unit with a valve plate body |
| CN101408154B (en) * | 2008-11-13 | 2010-06-23 | 哈尔滨工业大学 | Hydraulic cylinder-controlled oblique tray type plunger hydraulic transformer |
| CN103016430A (en) * | 2012-12-21 | 2013-04-03 | 哈尔滨工业大学 | Swash plate piston hydraulic transformer controlled by swing hydraulic motor |
| CN103267044A (en) * | 2013-05-18 | 2013-08-28 | 大连理工大学 | Hydraulic-driving alternating flow generator |
| CN103267044B (en) * | 2013-05-18 | 2015-10-28 | 大连理工大学 | Hydraulically powered alternation flow generator |
| CN103671304B (en) * | 2013-12-23 | 2015-11-04 | 哈尔滨理工大学 | A kind of integrated hydraulic transformer |
| CN103671304A (en) * | 2013-12-23 | 2014-03-26 | 哈尔滨理工大学 | Integrated hydraulic transformer |
| CN105186761A (en) * | 2015-06-17 | 2015-12-23 | 浙江大学 | Oblique shaft supporting device |
| CN105186761B (en) * | 2015-06-17 | 2017-08-04 | 浙江大学 | A kind of inclined shaft support meanss |
| CN104989636A (en) * | 2015-08-11 | 2015-10-21 | 贵阳海之力液压有限公司 | Port plate of swash plate type plunger pump and motor and matching cylinder body thereof |
| CN106837780A (en) * | 2015-12-07 | 2017-06-13 | 熵零股份有限公司 | One kind commutation displacement type hydraulic mechanism |
| CN106855036A (en) * | 2015-12-08 | 2017-06-16 | 熵零股份有限公司 | A kind of gas working medium displacement type hydraulic mechanism |
| CN107061211A (en) * | 2015-12-14 | 2017-08-18 | 熵零技术逻辑工程院集团股份有限公司 | A kind of hydraulic mechanism |
| CN105650041A (en) * | 2016-01-28 | 2016-06-08 | 吉林大学 | Double-variable symmetric hydraulic transformer |
| CN105864124A (en) * | 2016-05-04 | 2016-08-17 | 太原科技大学 | Hydraulic pressure transformer with two cylinder bodies |
| CN106368811A (en) * | 2016-08-26 | 2017-02-01 | 北京理工大学 | Valve plate and hydraulic output mechanism for engine and engine |
| CN106368811B (en) * | 2016-08-26 | 2019-01-18 | 北京理工大学 | A kind of valve plate, hydraulic output mechanism and engine for engine |
| CN107044456A (en) * | 2017-04-07 | 2017-08-15 | 江苏师范大学 | A kind of flow waist-shaped hole it is variable enter it is fuel-displaced wait flow four-way hydraulic transformer |
| CN106949104A (en) * | 2017-04-07 | 2017-07-14 | 江苏师范大学 | A kind of plunger type enters fuel-displaced flow four-way hydraulic transformer of Denging |
| CN106949104B (en) * | 2017-04-07 | 2018-05-15 | 江苏师范大学 | A kind of plunger type waits flow four-way hydraulic transformer into fuel-displaced |
| CN112377472A (en) * | 2020-11-04 | 2021-02-19 | 江苏师范大学 | Four-way hydraulic transformer with shaft flow distribution structure |
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| CN1187531C (en) | 2005-02-02 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Yangzhou Inno Intelligent Technology Co., Ltd. Assignor: Zhejiang University Contract record no.: 2010320000554 Denomination of invention: Test experiment system for revolving speed and pressure property of hydraulic transformer Granted publication date: 20050202 License type: Exclusive License Open date: 20031112 Record date: 20100507 |
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