CN1587698A - Hydraulic transformer of broad voltage regulation range - Google Patents
Hydraulic transformer of broad voltage regulation range Download PDFInfo
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- CN1587698A CN1587698A CN 200410053979 CN200410053979A CN1587698A CN 1587698 A CN1587698 A CN 1587698A CN 200410053979 CN200410053979 CN 200410053979 CN 200410053979 A CN200410053979 A CN 200410053979A CN 1587698 A CN1587698 A CN 1587698A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 210000003734 kidney Anatomy 0.000 claims description 99
- 230000015572 biosynthetic process Effects 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 18
- 230000000452 restraining effect Effects 0.000 claims description 5
- 239000000446 fuel Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 230000001131 transforming effect Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000007659 motor function Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
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Abstract
The invention publicizes a kind of hydraulic transformer for extending voltage-regulating range. The main shaft and center shaft intersects into obliquid shaft structure. One end of the center shaft is connected with the main-shaft, the other end is fixed in the center hole of vessel. The shaft plug and the connecting rod are connected by ball-hinge, the other end of the connectnig rid connected with the main shaft by ball hinge, and the other end of shaft-plug is laid in the shaft-plug cavity of vessel, distributing flow disc is fixed between the vessel and the back-end lid by controlling the rotating angle of the distributing flow disc and controlling the flow quantity of three oil exits of the distributing flow disc, it controls the pressure proportion of input and output. Using the special distributnig flow disc, and back-end lid structure, it resolves the damage of oil liquid throttle, enlarges the proportion range of the pressure transforming, to a greast extent, it embodies the pressure-transforming function, recycling load function, energy-saving function. In order to measure the rotating angle of the distributing flow disc, there is a angle transmission shaft.
Description
Technical field
The present invention relates to hydraulic element, especially relate to a kind of hydraulic transformer of widening range of regulation.
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,, can realize rotating the driving of load by the controlling mechanism of Moderator Variable oil hydraulic motor.For driving the straight line load that different loads pressure requires, but there is not good solution.Hydraulic transformer grows up under this technical background just.
Proposed a kind of novel hydraulic design of transformer notion in patent WO 97/31185, compared with the conventional hydraulic transformer, the type transformer gathers oil hydraulic motor function, pumping function, has formed an independent displacement devices, and 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, at hydraulic transformer, the thrust plate kidney slot 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, T groove and rear end cover, the fluid flow area between the T interface reduce gradually, and the 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.
In patent WO 99/40318 and WO 00/28211, structure to hydraulic transformer is improved, 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 has the energy loss of fluid between rear end cover and thrust plate.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.Simultaneously, in order to prevent the inclination of thrust plate, used a rolling bearing that radial dimension is bigger, this has increased the volume of hydraulic transformer.
Summary of the invention
The object of the present invention is to provide a kind of hydraulic transformer of widening range of regulation, improve the structure of thrust plate and rear end cover, the position and the shape of reasonably having distributed each oil circuit notch of thrust plate and rear end cover can efficiently be regulated oil supply pressure on a large scale.
The technical solution adopted for the present invention to solve the technical problems is to comprise:
1) end of housing connects with rear end cover, and the other end of housing connects with front cover with back-up ring by the hole, thereby constitutes the hydraulic transformer sealing cavity volume of clino-axis type; One end of main shaft is installed on the bearing in front cover hole and the housing, central shaft is housed in the cylinder body, the axis of central shaft and the axes intersect of main shaft, form the clino-axis type structure, one end of central shaft is hinged on the main shaft, the other end is installed in the center hole of cylinder body, the odd number plunger is linked together by ball pivot with connecting rod respectively, the other end and the main shaft of connecting rod link by ball pivot, the other end of plunger is placed in the plunger cavity of cylinder body, thrust plate is contained between cylinder body and the rear end cover, cooperate formation seal face W1 with cylinder body, cooperate formation seal face W2 with rear end cover, thrust plate is meshed with small gear by the gear teeth of end face, and small gear passes housing by a small gear linking bond and an end, the gearing shaft that the other end passes the rear end cover hole connects;
2) cooperate the kidney slots that have three even layouts on the thrust plate that forms seal face W1 with cylinder body, first kidney slot leads to high pressure fuel source pA, and second kidney slot leads to low pressure oil pT, and three-flute waist shape is led to load pB;
3) cooperate with rear end cover that three kidney slots are arranged on the thrust plate that forms seal face is above-mentioned 2) in three kidney slots, three kidney slots are distributed in respectively on the different diameter circle, first kidney slot is in center position, is center circle; The 3rd kidney slot is distributed on the maximum diameter circle position, its two ends are by 360 ° of connections of a circular groove, second kidney slot is on above-mentioned first kidney slot and the diameter circle position between the 3rd kidney slot, on the outside diameter circle of the 3rd kidney slot, also has a restraining groove, thrust plate forms cooperation at first flat key that cooperates formation seal face side to have on two keyways and the angle transmission shaft with rear end cover of first kidney slot;
4) cooperate the rear end cover center that forms seal face to have circular groove with thrust plate, circular groove latter end links to each other with first tapped hole through the hole, circular groove links to each other with second tapped hole through sidewall first oilhole, circular groove outside diameter circle is gone up the first obstructed kidney slot that distributes, in first kidney slot, also have the kidney slot that links to each other with the 3rd tapped hole through second oilhole, first kidney slot outside diameter circle is gone up the second obstructed kidney slot that distributes, have the kidney slot that links to each other with the 4th tapped hole through the 3rd oilhole in second kidney slot, in the circular groove on the rear end cover angle transmission shaft is housed, on the diameter circle in second kidney slot outside an obstructed circular trough is arranged, thrust plate angle of swing position limit pin can be equipped with in its inside;
5) high pressure oil is introduced by second tapped hole on the rear end cover, enter circular groove on the rear end cover through first oilhole on the rear end cover by sidewall, cooperate with rear end cover by thrust plate and to form seal face W2 and enter first kidney slot on the thrust plate, be introduced to thrust plate and cooperate formation seal face W1 side with cylinder body, finally enter in the plunger cavity of cylinder body; Flow out in the plunger cavity of load oil by cylinder body, cooperate with cylinder body by thrust plate and to form seal face W1 and enter into the 3rd kidney slot on the thrust plate, be introduced to thrust plate and cooperate formation seal face W2 side with rear end cover, in the kidney slot in second kidney slot on second kidney slot inflow rear end cover on rear end cover, and communicate with the 4th tapped hole on the rear end cover through the 3rd oilhole on the rear end cover, finally the 4th tapped hole is drawn and is entered load thus; Low pressure oil enters the kidney slot in first kidney slot on the rear end cover by second oilhole of the 3rd tapped hole on the rear end cover on rear end cover and is introduced in first kidney slot on the rear end cover, cooperate with rear end cover by thrust plate and to form seal face W2 and enter second kidney slot on the thrust plate, be introduced to thrust plate and cooperate formation seal face W1 side with cylinder body, communicate with the plunger cavity of cylinder body at last.
The useful effect that the present invention has is: by the angle of swing of control thrust plate, and the flow of three hydraulic fluid ports of thrust plate, and then the input output pressure ratio of control.Adopt special thrust plate and rear end cover structure, solved the fluid restriction loss between thrust plate and the rear end cover, enlarge pressure regulation, the embodiment that make voltage regulation function of the present invention, reclaim loading functional, power saving function obtains maximum than scope.In order to measure the angle of swing of thrust plate, supporting angle transmission shaft is stamped in thrust plate and rear end.Drive the rotation of thrust plate by gear matched, adopted a gearing shaft simultaneously again, realize manually and the electronic thrust plate of controlling.
Description of drawings
Fig. 1 is the structural principle schematic representation of hydraulic transformer;
Fig. 2 cooperates the thrust plate that forms seal face to look face figure with cylinder body;
Fig. 3 cooperates the flow card view that forms seal face with rear end cover;
Fig. 4 is the A-A sectional drawing of Fig. 2 thrust plate;
Fig. 5 is the B-B sectional drawing of Fig. 2 thrust plate;
Fig. 6 cooperates the rear end capping view that forms seal face with the flow card;
Fig. 7 is the A-A sectional drawing of Fig. 6 rear end cover;
Fig. 8 is Fig. 6 rear end cover B-B sectional drawing;
Fig. 9 is Fig. 8 rear end cover X side direction view;
Figure 10 is the housing sectional view;
Figure 11 is that Figure 10 housing V is to the direction view;
Figure 12 is gearing shaft figure;
Figure 13 is angle transmission shaft figure.
Among Fig. 1: 1 is main shaft, and 2 is front cover, and 3 are the hole back-up ring, 4 is O-ring seals, and 5 is rolling bearing, and 6 is housing, 7 is angular contact ball bearing, and 8 is plunger, and 9 is gearing shaft, 10 is manual control lever, and 11 is the axle oil shutoff, and 12 is oil sealing, 13 is the O-ring seals back-up ring, and 14 is O-ring seals, and 15 is copper sheathing, 16 is shaft block ring, and 17 is small gear, and 18 is O-ring seals, 19 is the small gear linking bond, and 20 is deep groove ball bearing, and 21 is O-ring seals, 22 is the O-ring seals back-up ring, and 23 is oil sealing, and 24 is the axle oil shutoff, 25 is oil sealing, and 26 is angle transmission shaft, and 27 is rear end cover, 28 is the axle oil shutoff, and 29 is O shape Sealing shield ring, and 30 is O-ring seals, 31 is copper sheathing, and 32 is oilhole, and 33 is circular groove, 34 is thrust plate angle of swing position limit pin, and 35 is kidney slot, and 36 is thrust plate, 37 is preloading spring, and 38 is cylinder body, and 39 is central shaft, 40 is connecting rod, and W1 is a seal face, and W2 is a seal face.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
As shown in Figure 1, an end of housing 6 connects with rear end cover 27, forms sealing by O-ring seals 18, and the other end of housing 6 connects with front cover 2 with back-up ring 3 by the hole, forms sealing by O-ring seals 4, thereby constitutes the hydraulic transformer sealing cavity volume of clino-axis type; One end of main shaft 1 is installed on the rolling bearing 5 and angular contact ball bearing 7 in front cover 2 holes and the housing 6, central shaft 39 is housed in the cylinder body 38, the axes intersect of the axis of central shaft 39 and main shaft 1, form the clino-axis type structure, one end of central shaft 39 is hinged on the main shaft 1, the other end is installed in the center hole of cylinder body 38, and by preloading spring 37 its initial positions of setting, odd number plunger 8, be generally 5,7,9 plungers, be linked together by ball pivot with connecting rod 40 respectively, the other end of connecting rod 40 and main shaft 1 link by ball pivot, the other end of plunger 8 is placed in the plunger cavity of cylinder body 38, thrust plate 36 is contained between cylinder body 38 and the rear end cover 27, cooperate formation seal face W1 with cylinder body 38, cooperate formation seal face W2 with rear end cover 27, thrust plate 36 is meshed with small gear 17 by the gear teeth 41 of end face, small gear 17 passes housing 6 by a small gear linking bond 19 and an end, the gearing shaft 9 that the other end passes rear end cover hole 52 connects, gearing shaft 9 one ends and housing 6 are by axle oil shutoff 11, oil sealing 12, O-ring seals back-up ring 13, O-ring seals 14 annexes such as grade form sealing, prevent leakage of oil, and form support by copper sheathing 15, axial position by shaft block ring 16 control gear transmission shafts 9, gearing shaft 9 the other ends and rear end cover 27 are by O-ring seals 21, O-ring seals back-up ring 22, oil sealing 23, axle oil shutoff 24 annexes such as grade form sealing, prevent leakage of oil, and form support by deep groove ball bearing 20;
As shown in Figure 2, cooperate kidney slots 35,42,43, the first kidney slots 35 logical high pressure fuel source pA that have three even layouts on the thrust plate 36 that forms seal face W1, second kidney slot, 42 logical low pressure oil pT, three-flute waist shape 43 logical load pB with cylinder body 38;
As Fig. 3, Fig. 4, shown in Figure 5, cooperate with rear end cover 27 that three kidney slots 35,42,43 are arranged on the thrust plate 36 that forms seal face W2 is three kidney slots among above-mentioned Fig. 2, three kidney slots are distributed in respectively on the different center of circle radiuses, first kidney slot 35 is center circle in the central position, first kidney slot, 35 edges have two keyways 44, form cooperation with the first flat key 26-1 on the angle transmission shaft 26, in thrust plate 36 rotation angles, drive angle transmission shaft 26 and rotate, and can measure this angle by angle transducer; The 3rd kidney slot 43 is distributed on the maximum diameter circle position, and its two ends are by 360 ° of connections of a circular groove; Second kidney slot 42 is on above-mentioned first kidney slot 35 and the diameter circle position between the 3rd kidney slot 43, on the outside diameter circle of the 3rd kidney slot 43, also has a restraining groove 45, restraining groove 45 forms with thrust plate angle of swing position limit pin 34 in the circular trough 62 that is contained on the rear end cover 27 and is slidingly matched, and makes thrust plate 36 angle of swing less than 100 °.
Shown in Fig. 4,5, be respectively the A-A sectional drawing of Fig. 2 thrust plate and the B-B sectional drawing of Fig. 2 thrust plate, first kidney slot 35, second kidney slot 42, the 3rd kidney slot 43 are skewed slot as can be seen, cooperate a side that forms seal face W1 with cylinder body 38 at thrust plate 36, three notches are on the same diameter circle position, cooperate three notches of a side that form seal face W2 to be in respectively on the different diameter circle positions at thrust plate 36 with rear end cover 27;
As Fig. 6, Fig. 7, Fig. 8, shown in Figure 9, cooperate rear end cover 27 centers that form seal face W2 to have circular groove 33 with thrust plate 36, circular groove 33 latter ends 50 link to each other with first tapped hole 51 through the hole, in hole 50, place and be used for the copper sheathing 31 of support angle transmission shaft 26, in first tapped hole 51, place the oil sealing 25 that is used for sealing, axle oil shutoff 28, O shape Sealing shield ring 29, O-ring seals 30, copper sheathing 31 annexes such as grade are realized the sealing of angle transmission shaft 26, circular groove 33 links to each other with second tapped hole 56 through sidewall first oilhole 32, circular groove 33 outside diameter circle is gone up the first obstructed kidney slot 47 that distributes, in first kidney slot 47, also have the kidney slot 46 that links to each other with the 3rd tapped hole 58 through second oilhole 57, first kidney slot, 47 outside diameter circle is gone up the second obstructed kidney slot 49 that distributes, have the kidney slot 48 that links to each other with the 4th tapped hole 60 through the 3rd oilhole 59 in second kidney slot 49, one angle transmission shaft 26 is housed in the circular groove 33 on the rear end cover 27, angle transmission shaft 26 1 is held key 26-1 level with both hands and is matched with keyway 44 in first kidney slot 35, one obstructed circular trough 62 is arranged on the diameter circle in second kidney slot, 49 outsides, and thrust plate angle of swing position limit pin 34 can be equipped with in its inside.Rear end cover 27 is cooperating formation seal face W2 side to also have the sulculus 61 in a ring week to be used for placing O-ring seals 18 with thrust plate 36.For fluid being introduced or drawn tapped hole 56,58,60, and seal these oilholes, must realize end face seal, therefore, need to guarantee the face Y1 and the oilhole 56 of rear end cover, face Y2 and oilhole 58, face Y3 and oilhole 60 are perpendicular.
As Figure 10, shown in Figure 11, the main structure form of housing 6 is: the hole 6-1 of housing 6 is used for installing O-ring seals back-up ring 13, and it is stifled 11 with oil sealing that tapped hole 6-2 is used for installation shaft, and hole 6-3 is used for installing copper sheathing 15.Chamber 6-4 is used for holding thrust plate 36 and small gear 17.The shaft shoulder H of annular groove 6-5 and thrust plate 36 forms fitting surface, is used for locating thrust plate 36.
As shown in figure 12, the hole 9-1 on the gearing shaft 9 is used for installing manual control lever 10, realizes manually control; Annular groove 9-2 is used for installing shaft block ring 16, prevents the play of small gear 17 on gearing shaft 9; Keyway 9-3 is used for installing small gear linking bond 19, and by small gear linking bond 19, gearing shaft 9 drives small gear 17 and rotates, thereby makes the rotation of thrust plate 36; Flat key 9-4 is used for connect (link by coupling and stepper motor, coupling, stepper motor do not draw among the figure) with stepper motor, realizes the automatically controlled of thrust plate 36.
As shown in figure 13, the first flat key 26-1 on the angle transmission shaft 26 is used for and the connecting of the keyway 44 of thrust plate 36, and guarantees that angle transmission shaft 26 rotates synchronously with thrust plate 36; The second flat key 26-2 is used for the connection (link by coupling and angle transducer, coupling, angle transducer do not draw among the figure) of angle transducer.
The oil circuit connection form of this hydraulic transformer is: high pressure oil is introduced by second tapped hole 56 on the rear end cover 27, enter circular groove 33 on the rear end cover 27 by sidewall through first oilhole 32 on the rear end cover 27, cooperate with rear end cover 27 by thrust plate 36 and to form seal face W2 and enter first kidney slot 35 on the thrust plate 36, be introduced to thrust plate 36 and cooperate formation seal face W1 side with cylinder body 38, finally enter in the plunger cavity of cylinder body 38; Flow out in the plunger cavity of load oil by cylinder body 38, cooperate with cylinder body 38 by thrust plate 36 and to form seal face W1 and enter into the 3rd kidney slot 43 on the thrust plate 36, be introduced to thrust plate 36 and cooperate formation seal face W2 side with rear end cover 27, in the kidney slot 48 in second kidney slot 49 that second kidney slot 49 on rear end cover 27 flows on the rear end cover 27, and communicate with the 4th tapped hole 60 on the rear end cover 27 through the 3rd oilhole 59 on the rear end cover 27, finally the 4th tapped hole 60 is drawn and is entered load thus; Low pressure oil enters the kidney slot 46 in first kidney slot 47 on the rear end cover 27 by second oilhole 57 of the 3rd tapped hole 58 on the rear end cover 27 on rear end cover 27 and is introduced in first kidney slot 47 on the rear end cover 27, cooperate with rear end cover 27 by thrust plate 36 and to form seal face W2 and enter second kidney slot 42 on the thrust plate 36, be introduced to thrust plate 36 and cooperate formation seal face W1 side with cylinder body 38, communicate with the plunger cavity of cylinder body 38 at last.
Hydraulic transformer in the course of the work, high pressure oil finally is introduced in the plunger cavity of cylinder body 38, thereby in the plunger cavity of cylinder body 38 to outer motion, and then drivening rod 40 motions, connecting rod 40 connects promotion main shaft 1 by ball pivot, and produce a tangential component, make main shaft 1 rotate, main shaft 1 passes through the axial position of hinged central shaft 39 stationary housings 38 of an end in rotation process, and by connect the oppositely corresponding plunger 8 generation tangential components of promotion of corresponding connecting rod 40 with main shaft 1 ball pivot, thereby drive cylinder body 38 and also produce corresponding the rotation, a side odd number plunger accent that makes cylinder body 38 and thrust plate 36 cooperate to form seal face W1 can alternately cooperate with three kidney slot mouths of a side of this seal face W1 of thrust plate 36 and contacts, thereby the interior high pressure oil of the plunger cavity that enters cylinder body 38 that makes pressure drop to setting value is converted into load oil, load oil is introduced in the 4th tapped hole 60 by above-mentioned oil circuit together with form, finally draw transformer, and be incorporated into specific load by oil pipe.In the fluid conversion process, the high pressure oil that enters hydraulic transformer may there are differences on flow with the load oil of drawing hydraulic transformer, therefore, there is corresponding low pressure oil to be communicated with between the plunger cavity of cylinder body 38 and the low pressure oil sources together with form by above-mentioned oil circuit, by compressing oil sources the plunger cavity of cylinder body 38 is carried out leaking or compensating of fluid, finally realize the balance that hydraulic transformer high pressure oil and load oil pressure transformation are set up.
Claims (5)
1. hydraulic transformer of widening range of regulation is characterized in that:
1) end of housing (6) connects with rear end cover (27), and the other end of housing (6) connects with front cover (2) with back-up ring (3) by the hole, thereby constitutes the hydraulic transformer sealing cavity volume of clino-axis type; One end of main shaft (1) is installed on the bearing in front cover (2) hole and the housing (6), central shaft (39) is housed in the cylinder body (38), the axes intersect of the axis of central shaft (39) and main shaft (1), form the clino-axis type structure, one end of central shaft (39) is hinged on the main shaft (1), the other end is installed in the center hole of cylinder body (38), odd number plunger (8) is linked together by ball pivot with connecting rod (40) respectively, the other end of connecting rod (40) and main shaft (1) link by ball pivot, the other end of plunger (8) is placed in the plunger cavity of cylinder body (38), thrust plate (36) is contained between cylinder body (38) and the rear end cover (27), cooperate formation seal face (W1) with cylinder body (38), cooperate formation seal face (W2) with rear end cover (27), thrust plate (36) is meshed with small gear (17) by the gear teeth (41) of end face, and small gear (17) passes housing (6) by a small gear linking bond (19) and an end, the gearing shaft (9) that the other end passes rear end cover hole (52) connects;
2) cooperate the kidney slots (35,42,43) that have three even layouts on the thrust plate (36) that forms seal face (W1) with cylinder body (38), first kidney slot (35) leads to high pressure fuel source pA, second kidney slot (42) leads to low pressure oil pT, and three-flute waist shape (43) is led to load pB;
3) cooperate with rear end cover (27) that on the thrust plate (36) that forms seal face (W2) three kidney slots (35,42,43) to be arranged be above-mentioned 2) in three kidney slots, three kidney slots are distributed in respectively on the different center of circle radiuses, and first kidney slot (35) is center circle in the central position; The 3rd kidney slot (43) is distributed on the maximum diameter circle position, its two ends are by 360 ° of connections of a circular groove, second kidney slot (42) is on above-mentioned first kidney slot (35) and the diameter circle position between the 3rd kidney slot (43), outside diameter circle at the 3rd kidney slot (43) is gone up a restraining groove (45) in addition, thrust plate (36) forms seal face (W2) side in cooperating with rear end cover (27) of first kidney slot (35) and has two keyways (44), and first flat key (26-1) on the angle transmission shaft (26) forms cooperation;
4) cooperate rear end cover (27) center that forms seal face (W2) to have circular groove (33) with thrust plate (36), (50) link to each other with first tapped hole (51) circular groove (33) latter end through the hole, circular groove (33) links to each other with second tapped hole (56) through sidewall first oilhole (32), circular groove (33) outside diameter circle is gone up obstructed first kidney slot (47) that distributes, in first kidney slot (47), also have the kidney slot (46) that links to each other with the 3rd tapped hole (58) through second oilhole (57), first kidney slot (47) outside diameter circle is gone up obstructed second kidney slot (49) that distributes, have the kidney slot (48) that links to each other with the 4th tapped hole (60) through the 3rd oilhole (59) in second kidney slot (49), in the circular groove (33) on the rear end cover (27) angle transmission shaft (26) is housed, on the diameter circle in second kidney slot (49) outside an obstructed circular trough (62) is arranged, thrust plate angle of swing position limit pin (34) is equipped with in its inside;
5) high pressure oil is introduced by second tapped hole (56) on the rear end cover (27), enter circular groove (33) on the rear end cover (27) by sidewall through first oilhole (32) on the rear end cover (27), cooperate with rear end cover (27) by thrust plate (36) and to form seal face (W2) and enter first kidney slot (35) on the thrust plate (36), be introduced to thrust plate (36) and cooperate formation seal face (W1) side with cylinder body (38), finally enter in the plunger cavity of cylinder body (38); Load oil is by flowing out in the plunger cavity of cylinder body (38), cooperate with cylinder body (38) by thrust plate (36) and to form seal face (W1) and enter into the 3rd kidney slot (43) on the thrust plate (36), be introduced to thrust plate (36) and cooperate formation seal face (W2) side with rear end cover (27), in the kidney slot (48) in second kidney slot (49) on second kidney slot (49) the inflow rear end cover (27) on rear end cover (27), and communicate with the 4th tapped hole (60) on the rear end cover (27) through the 3rd oilhole (59) on the rear end cover (27), finally the 4th tapped hole (60) is drawn and is entered load thus; Low pressure oil enters kidney slot (46) in last first kidney slot of rear end cover (27) (47) by second oilhole (57) of the 3rd tapped hole (58) on the rear end cover (27) on rear end cover (27) and is introduced in first kidney slot (47) on the rear end cover (27), cooperate with rear end cover (27) by thrust plate (36) and to form seal face (W2) and enter second kidney slot (42) on the thrust plate (36), be introduced to thrust plate (36) and cooperate formation seal face (W1) side with cylinder body (38), communicate with the plunger cavity of cylinder body (38) at last.
2. a kind of hydraulic transformer of widening range of regulation according to claim 1, it is characterized in that: cooperate with rear end cover (27) in the restraining groove (45) on the outside diameter circle of the 3rd kidney slot (43) on the thrust plate (36) that forms seal face (W2), be slidingly matched with thrust plate angle of swing position limit pin (34) formation in the circular trough (62) that is contained on the rear end cover (27), make thrust plate (36) angle of swing less than 100 °.
3. a kind of hydraulic transformer of widening range of regulation according to claim 1 is characterized in that: cooperate obstructed second kidney slot (49) on the rear end cover (27) that forms seal face (W2) with thrust plate (36), its center angle is less than 180 °.
4. a kind of hydraulic transformer of widening range of regulation according to claim 1 is characterized in that: the end at gearing shaft (9) is equipped with manual control lever (10).
5. a kind of hydraulic transformer of widening range of regulation according to claim 1 is characterized in that: odd number plunger (8) is 5,7 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410053979 CN1587698A (en) | 2004-08-22 | 2004-08-22 | Hydraulic transformer of broad voltage regulation range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410053979 CN1587698A (en) | 2004-08-22 | 2004-08-22 | Hydraulic transformer of broad voltage regulation range |
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| CN1587698A true CN1587698A (en) | 2005-03-02 |
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| CN 200410053979 Pending CN1587698A (en) | 2004-08-22 | 2004-08-22 | Hydraulic transformer of broad voltage regulation range |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101408154B (en) * | 2008-11-13 | 2010-06-23 | 哈尔滨工业大学 | Hydraulic cylinder-controlled oblique tray type plunger hydraulic transformer |
| CN104405575A (en) * | 2014-11-03 | 2015-03-11 | 南京萨伯工业设计研究院有限公司 | Improved hydraulic motor and assembly test method thereof |
| CN105545835A (en) * | 2015-12-18 | 2016-05-04 | 哈尔滨工业大学 | Parallel-connection type inclined shaft type hydraulic transformer |
| CN105864124A (en) * | 2016-05-04 | 2016-08-17 | 太原科技大学 | Hydraulic pressure transformer with two cylinder bodies |
| CN108150407A (en) * | 2016-12-05 | 2018-06-12 | 江苏汉力士液压制造有限公司 | With interchangeable needle bearing cylinder body |
-
2004
- 2004-08-22 CN CN 200410053979 patent/CN1587698A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101408154B (en) * | 2008-11-13 | 2010-06-23 | 哈尔滨工业大学 | Hydraulic cylinder-controlled oblique tray type plunger hydraulic transformer |
| CN104405575A (en) * | 2014-11-03 | 2015-03-11 | 南京萨伯工业设计研究院有限公司 | Improved hydraulic motor and assembly test method thereof |
| CN104405575B (en) * | 2014-11-03 | 2017-04-26 | 桂林理工大学 | Improved hydraulic motor and assembly test method thereof |
| CN105545835A (en) * | 2015-12-18 | 2016-05-04 | 哈尔滨工业大学 | Parallel-connection type inclined shaft type hydraulic transformer |
| CN105545835B (en) * | 2015-12-18 | 2017-06-06 | 哈尔滨工业大学 | A kind of parallel connection type inclined shaft type hydraulic transformer |
| CN105864124A (en) * | 2016-05-04 | 2016-08-17 | 太原科技大学 | Hydraulic pressure transformer with two cylinder bodies |
| CN108150407A (en) * | 2016-12-05 | 2018-06-12 | 江苏汉力士液压制造有限公司 | With interchangeable needle bearing cylinder body |
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