CN1159526C - Double-acting four-plunger hydraulic pump or motor - Google Patents
Double-acting four-plunger hydraulic pump or motor Download PDFInfo
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- CN1159526C CN1159526C CNB021394385A CN02139438A CN1159526C CN 1159526 C CN1159526 C CN 1159526C CN B021394385 A CNB021394385 A CN B021394385A CN 02139438 A CN02139438 A CN 02139438A CN 1159526 C CN1159526 C CN 1159526C
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Abstract
The present invention relates to a double-action four-plunger hydraulic pump, and a mechanical transmission system comprises rotating shafts, two planetary gear trains, two pairs of plunger cylinders and two pairs of plungers. Planetary gears are respectively arranged on the rotating shafts on tie rods extended by the rotating shafts of gears, two inner gears are fixed, the two inner gears do not rotate, and the planetary gears respectively drive the plungers to make straight reciprocating motion in the plunger cylinders by push rods. A hydraulic oil distribution system comprises a rotating shaft, an oil groove arranged on a rotating sleeve coaxial with the rotating shaft, an oil channel arranged on a fixing sleeve coaxial with the rotating shaft and an oil pipe connecting the oil channel and the plunger cylinders. A double-action four-plunger hydraulic motor of the double action four plunger hydraulic pump changes an oil sucking port in the hydraulic pump to an oil pressing port and changes the oil pressing port to an oil discharging port and is coupled in an oil tank when high pressure oil is led in.
Description
Technical field
The present invention is based on the new hydraulic pump or the motor of same structure.
Technical background
Seize or asphyxia by external pressure on the chest and abdomen phenomenon under high pressure take place in axial and radial plunger pump complex structure of the prior art easily.Crank " dead point " stuck phenomenon under high pressure takes place in crank-linkage type plunger pump easily, produces side pressure when crank rod movement moves plunger in plunger case, and it is bigger to wear and tear.
Summary of the invention
Double-action four plunger hydraulic pumps, form by machine driven system and said hydraulic oil distribution system, comprise plunger and plunger case, plunger can be done straight reciprocating motion in plunger case, rotating shaft 8 is rotated under motor driving, machine driven system of the present invention comprises rotating shaft 8, be contained in gear 10 in the rotating shaft 8, with gear 10 meshed gears 1, two epicyclic trains, two pairs of plunger cases and two pairs of plungers, planetary pinion 7,14 is contained in the rotating shaft O of gear 1 respectively
1Rotating shaft O on the extended tie-rod
2, O
2' on, two internal gears 2,13 maintain static, and rotating shaft 8 driven gears 10 rotate, and gear 10 driven gears 1 rotate, gear 1 drives planetary pinion 7,14 by tie-rod and rotates, and planetary pinion 7,14 drives plunger 4,15 respectively by push rod 5,16 and do straight reciprocating motion in plunger case 3,12.
Said hydraulic oil distribution system comprise rotating shaft 8, with coaxial rotating sleeve 11 of rotating shaft 8 and fixed cover 9 on oil groove, oil circuit, the oil pipe that is connected oil groove and plunger case offered, wherein oil pipe 3 ' the left chamber of newel post's plug cylinder 3 communicate, the other end communicates with the oil groove e that offers on the circumferencial direction of rotating sleeve 11, oil groove e is the circumference groove, oil groove e communicates with the semicircle oil groove a that offers on the circumferencial direction of rotating sleeve 11 by the oil circuit c that offers in rotating sleeve 11, oil groove a can with inlet port P
1Or pressure hydraulic fluid port P
2Communicate; Oil pipe 3 " an end communicate with the right chamber of plunger case 3; the other end communicates with the oil groove f that offers on the circumferencial direction of rotating sleeve 11; oil groove f is the circumference groove; oil groove f communicates with the semicircle oil groove b that offers on the circumferencial direction of rotating sleeve 11 by the oil circuit d that offers in rotating sleeve 11, oil groove b can with inlet port P
1Or pressure hydraulic fluid port P
2Communicate; Oil pipe 12 ' an end communicate with the left chamber of plunger case 12, the other end communicates with the oil groove m that offers on the circumferencial direction of rotating sleeve 11, oil groove m is the circumference groove, oil groove m communicates with the semicircle oil groove h that offers on the circumferencial direction of rotating sleeve 11 by the oil circuit j that offers in rotating sleeve 11, oil groove h can with inlet port P
1Or pressure hydraulic fluid port P
2Communicate; Oil pipe 12 " an end communicate with the right chamber of plunger case 12; the other end communicates with the oil groove k that offers on the circumferencial direction of rotating sleeve 11; oil groove k is the circumference groove; oil groove k communicates with the semicircle oil groove g that offers on the circumferencial direction of rotating sleeve 11 by the oil circuit i that offers in rotating sleeve 11, oil groove g can with inlet port P
1Or pressure hydraulic fluid port P
2Communicate;
According to above-described double-action four plunger hydraulic pumps, its gear 10 equates with the number of teeth of gear 1, and the number of teeth of planetary pinion 7,14 and internal gear 2,13 is all than being 1: 2; Be as the criterion constantly with left plunger 4 left lateral journey in plunger case 3, the phase place of planetary pinion 7 place tie-rods is 0 °, the circumferential phase difference of the tie-rod of two epicyclic trains is 90 °, and the phase place of oil groove e is 0 °, and the phase place of oil groove a is 180 °, the phase place of oil groove f is 180 °, the phase place of oil groove b is 0 °, and the phase place of oil groove k is-90 °, and the phase place of oil groove g is 90 °, the phase place of oil groove m is 90 °, and the phase place of oil groove h is-90 °.
According to above-described double-action four plunger hydraulic pumps, be as the criterion constantly with left plunger 4 left lateral journey in plunger case 3, rotating shaft 8 is rotated, and rotates by gear 10 driven gears 1, by rotating shaft O
1And tie-rod drives planetary pinion 2,14 O around the shaft respectively
2, O
2' revolution is again by rotating shaft O
3 Drive push rod 5, plunger 4 move right, and left plunger 4 carries out the oil suction campaign to the right, and this moment, fluid was by inlet port P
1, oil groove a, oil circuit c, oil groove e, oil pipe 3 ' suction plunger case 3 left chamber, right plunger 4 is pressed the oil motion to the right, with fluid through oil groove f, oil circuit d, oil groove b, press hydraulic fluid port P2 to extrude; By rotating shaft O
3' drive push rod 16, plunger 15 to left movement, left plunger 15 is pressed the oil motion left, this moment fluid by oil pipe 12 ', oil groove m, oil circuit j, oil groove h, press hydraulic fluid port P
2' extruding the left chamber of plunger case 12, right plunger 12 carries out the oil suction campaign left, fluid is sucked the right chamber of plunger case 12 through inlet port P1, oil groove g, oil circuit i, oil groove k;
After rotating shaft 8 is rotated 180 °, the oil motion is pressed in plunger 4 beginnings in a left side left, with fluid through oil pipe 3 ', oil groove e, oil circuit c, oil groove a, press hydraulic fluid port P2 to extrude the left chamber of plunger case 3, right plunger 4 carries out oil suction campaign left, with fluid through inlet port P1, oil groove b, oil circuit d, oil groove f, oil pipe 3 " the right chamber of suction plunger case 3; Meanwhile, the oil suction campaign is carried out in plunger 12 beginnings in a left side to the right, with the left chamber of fluid through inlet port P1, oil groove h, oil circuit j, oil groove m suction plunger case 12, right plunger 12 is pressed the oil motion to the right, fluid is extruded the right chamber of plunger case 12 through oil groove k, oil circuit i, oil groove g.Rotating shaft 8 continues rotation, repeats said process.
Identical with above-mentioned double-action four plunger hydraulic pump structures, with the inlet port P in above-described double-action four plunger hydraulic pumps
1Change into and press hydraulic fluid port P
3, feed high pressure oil, press hydraulic fluid port P
2Change oil drain out P into
4Insert fuel tank, said hydraulic oil distribution system also comprises the oil pipe of rotating shaft 8, rotating sleeve 11, fixed cover 9, the oil groove of offering, oil circuit, connection oil groove and plunger case on rotating sleeve 11, wherein oil pipe 3 ' an end communicate with the left chamber of plunger case 3, the other end communicates with the oil groove e that offers on the circumferencial direction of rotating sleeve 11, oil groove e is the circumference groove, oil groove e communicates with the semicircle oil groove a that offers on the circumferencial direction of rotating sleeve 11 by the oil circuit c that offers in rotating sleeve 11, oil groove a can with press hydraulic fluid port P
3Or oil drain out P
4Communicate; Oil pipe 3 " an end communicate with the right chamber of plunger case 3; the other end communicates with the oil groove f that offers on the circumferencial direction of rotating sleeve 11; oil groove f is the circumference groove; oil groove f communicates with the semicircle oil groove b that offers on the circumferencial direction of rotating sleeve 11 by the oil circuit d that offers in rotating sleeve 11, oil groove b can with press hydraulic fluid port P
3Or oil drain out P
4Communicate; Oil pipe 12 ' an end communicate with the left chamber of plunger case 12, the other end communicates with the oil groove m that offers on the circumferencial direction of rotating sleeve 11, oil groove m is the circumference groove, oil groove m communicates with the semicircle oil groove h that offers on the circumferencial direction of rotating shaft 8 by the oil circuit i that offers in rotating sleeve 11, oil groove h can with press hydraulic fluid port P
3Or oil drain out P
4Communicate; Oil pipe 12 " an end communicate with the right chamber of plunger case 12; the other end communicates with the oil groove k that offers on the circumferencial direction of rotating sleeve 11; oil groove k is the circumference groove; oil groove k communicates with the semicircle oil groove g that offers on the circumferencial direction of rotating sleeve 11 by the oil circuit i that offers in rotating shaft 8, oil groove g can with press hydraulic fluid port P
3Or oil drain out P
4Communicate;
Machine driven system comprises rotating shaft 8, be contained in gear 10 in the rotating shaft 8, with gear 10 meshed gears 1, two epicyclic trains, two plunger cases and two pairs of plungers, planetary pinion 7,14 is contained in the rotating shaft O of gear 1 respectively
1Rotating shaft O on the extended tie-rod
2, O
2' on, two internal gears 2,13 maintain static.
According to above-described double-action four plunger piston hydraulic motors, its gear 10 equates that with the number of teeth of gear 1 gear ratio of planetary pinion 7,14 and internal gear 2,13 is 1: 2; Be as the criterion constantly with left plunger 4 left lateral journey in plunger case 3, the phase place of planetary pinion 7 place tie-rods is 0 °, the circumferential phase difference of the tie-rod of two epicyclic trains is 90 °, and the phase place of oil groove e is 0 °, and the phase place of oil groove a is 180 °, the phase place of oil groove f is 180 °, the phase place of oil groove b is 0 °, and the phase place of oil groove k is-90 °, and the phase place of oil groove g is 90 °, the phase place of oil groove m is 90 °, and the phase place of oil groove h is-90 °.
According to above-described double-action four plunger piston hydraulic motors, its high pressure oil is by pressing hydraulic fluid port P
3Feed oil groove a, through oil circuit c, oil groove e, oil pipe 3 ' enter left plunger cavity 3, drive left plunger 4 moving linearly to the right, right plunger 4 is discharged fluid right plunger cavity 3 to the right, through oil pipe 3 ", oil groove f, oil circuit d, oil groove b, through oil drain out P
4Send into fuel tank, meanwhile, high pressure oil is by pressing hydraulic fluid port P
3Feed oil groove g, through oil circuit i, oil groove k, oil pipe 12 " enter right plunger cavity 12, drive right plunger 15 moving linearly left, left plunger 15 is discharged fluid left plunger cavity 12 left, through oil pipe 12 ', oil groove m, oil circuit i, oil groove h, through oil drain out P
4Send into fuel tank; Left side plunger 4 is by push rod 5, rotating shaft O
3Drive planetary pinion 7 and rotate, rotate by tie-rod driven gear 1, gear 1 driven gear 10 rotates, by rotating shaft 8 outputting powers; Right plunger 12 is by push rod 16, rotating shaft O
3' drive planetary pinion 14 to rotate, rotate by tie-rod driven gear 1, gear 1 driven gear 10 rotates, by rotating shaft 8 outputting powers;
After rotating shaft 8 was rotated 180 °, high pressure oil was by pressing hydraulic fluid port P
3Feed oil groove b, through oil circuit d, oil groove f, oil pipe 3 " enter right plunger cavity 3, drive right plunger 4 moving linearly left, left plunger 4 is discharged fluid left plunger cavity 3 left, through oil pipe 3 ', oil groove e, oil circuit c, oil groove a, through oil drain out P
4Send into fuel tank, meanwhile, right plunger 4 is by push rod 5, rotating shaft O
3Drive planetary pinion 7 and rotate, rotate by tie-rod driven gear 1, gear 1 driven gear 10 rotates, by rotating shaft 8 outputting powers; Meanwhile, high pressure oil feeds oil groove h by pressing hydraulic fluid port P3, through the left plunger cavity 12 of oil circuit j, oil groove m, oil pipe 12 ' enter, drive left plunger 15 moving linearly to the right, right plunger 15 is discharged fluid oil piston chamber 12 to the right, through oil pipe 12 ", oil groove k, oil circuit i, oil groove g, through oil drain out P
4Send into fuel tank, meanwhile, left plunger 12 rotates by push rod 16, rotating shaft O3 ' drive planetary pinion 14, rotates by tie-rod driven gear 1, and gear 1 driven gear 10 rotates, by rotating shaft 8 outputting powers.Rotating shaft 8 continues rotation, repeats said process.
Description of drawings
Fig. 1 is the structure diagram of double-action four plunger hydraulic pumps of the present invention, the structure diagram of Fig. 2 double-action four plunger piston hydraulic motors, Fig. 3 be two planetary pinions tie up to A-A to B-B to the phase place schematic representation.
Specific implementation
As shown in Figure 1, double-action four plunger hydraulic pumps of the present invention, form by machine driven system and said hydraulic oil distribution system, comprise plunger and plunger case, plunger can be done straight reciprocating motion in plunger case, rotating shaft 8 is rotated under motor driving, machine driven system of the present invention comprises rotating shaft 8, be contained in gear 10 in the rotating shaft 8, with gear 10 meshed gears 1, two epicyclic trains, two pairs of plunger cases and two pairs of plungers, planetary pinion 7,14 is contained in the rotating shaft O of gear 1 respectively
1Rotating shaft O on the extended tie-rod
2, O
2' on, two internal gears 2,13 maintain static, and rotating shaft 8 driven gears 10 rotate, and gear 10 driven gears 1 rotate, gear 1 drives planetary pinion 7,14 by tie-rod and rotates, and planetary pinion 7,14 drives plunger 4,15 respectively by push rod 5,16 and do straight reciprocating motion in plunger case 3,12.
As shown in Figure 3, the plunger 4 of left end is when the high order end position, and planetary pinion 7 place tie-rods are 0 °, and the phase place of planetary pinion 14 place tie-rods is 90 °.
As shown in Figure 1, fixed cover 9 is coaxial with rotating shaft 8, and rotating sleeve 11 is contained in the rotating shaft 8, and the phase difference of two rotating sleeves 11 is 90 °.Oil pipe 3 ' an end communicate with the left chamber of plunger case 3, the other end communicates with the oil groove e that offers on the circumferencial direction of rotating sleeve 11, oil groove e is the circumference groove, oil groove e communicates with the semicircle oil groove a that offers on the circumferencial direction of rotating shaft 8 by the oil circuit c that offers in rotating sleeve 11, oil groove a can with inlet port P
1Or pressure hydraulic fluid port P
2Communicate; Oil pipe 3 " an end communicate with the right chamber of plunger case 3; the other end communicates with the oil groove f that offers on the circumferencial direction of rotating sleeve 11; oil groove f is the circumference groove; oil groove f communicates with the semicircle oil groove b that offers on the circumferencial direction of rotating sleeve 11 by the oil circuit d that offers in rotating sleeve 11, oil groove b can with inlet port P
1Or pressure hydraulic fluid port P
2Communicate; Oil pipe 12 ' an end communicate with the left chamber of plunger case 12, the other end communicates with the oil groove m that offers on the circumferencial direction of rotating sleeve 11, oil groove m is the circumference groove, oil groove m communicates with the semicircle oil groove h that offers on the circumferencial direction of rotating sleeve 11 by the oil circuit j that offers in rotating sleeve 11, oil groove h can with inlet port P
1Or pressure hydraulic fluid port P
2Communicate; Oil pipe 12 " an end communicate with the right chamber of plunger case 12; the other end communicates with the oil groove k that offers on the circumferencial direction of rotating sleeve 11; oil groove k is the circumference groove; oil groove k communicates with the semicircle oil groove g that offers on the circumferencial direction of rotating sleeve 11 by the oil circuit i that offers in rotating sleeve 11, oil groove g can with inlet port P
1Or pressure hydraulic fluid port P
2Communicate; Gear 10 equates that with the number of teeth of gear 1 gear ratio of planetary pinion 7,14 and internal gear 2,13 is 1: 2; Be as the criterion constantly with left plunger 4 left lateral journey in plunger case 3, the phase place of planetary pinion 7 place tie-rods is 0 °, the circumferential phase difference of the tie-rod of two epicyclic trains is 90 °, and the phase place of oil groove e is 0 °, and the phase place of oil groove a is 180 °, the phase place of oil groove f is 180 °, the phase place of oil groove b is 0 °, and the phase place of oil groove k is-90 °, and the phase place of oil groove g is 90 °, the phase place of oil groove m is 90 °, and the phase place of oil groove h is-90 °.
When rotating shaft 8 drives rotating sleeves 11 and rotates, join the oil circuit line and be:
(1) the rotating shaft first half: phase place is from 0 ° to 180 °,
The oil circuit of the left chamber of plunger case 3 is: inlet port P
1The left chamber of → a → c → e → plunger case 3;
The oil circuit of the right chamber of plunger case 3 is: the right chamber → f → d → b of plunger case 3 → pressure hydraulic fluid port P
2
Phase place is from 360 ° of 180 ° of ∽,
The oil circuit of the left chamber of plunger case 3 is: the left chamber → e of plunger case 3 → c → a → pressure hydraulic fluid port P
2
The oil circuit of the right chamber of plunger case 3 is: inlet port P
1The right chamber of → b → d → f → plunger case 3.
(2) rotating shaft Lower Half: phase place is from-90 ° to 90 °,
The oil circuit of the left chamber of plunger case 12 is: the left chamber → m of plunger case 12 → j → h → pressure hydraulic fluid port P
2
The oil circuit of the right chamber of plunger case 12 is: inlet port P
1The right chamber of → g → i → k → plunger case 12;
Phase place is from 270 ° of 90 ° of ∽,
The oil circuit of the left chamber of plunger case 12 is: inlet port P
1The left chamber of → h → j → m → plunger case 12;
The oil circuit of the right chamber of plunger case 12 is: the right chamber → k → i → g of plunger case 12 → pressure hydraulic fluid port P
2
Rotating shaft 8 continues rotation, repeats said process.
Two epicyclic trains adopt same tie-rod rotating shaft O
1, power is passed to tie-rod rotating shaft O by gear 10, gear 1 with 1: 1 gear ratio
1, the parameter of two epicyclic trains is identical.Planetary pinion 7,14 is contained in tie-rod rotating shaft O respectively
2, O
2' on, rotating shaft O
3, O
3' fixedly connected with planetary pinion 7,14 respectively.Planetary pinion 7,14 drives rotating shaft O respectively
3, O
3', promoting push rod 5,16, drive plunger 4,15 is done straight reciprocating motion in plunger case 3,12.
As shown in Figure 3, when planetary pinion 7,14 revolves round the sun, a bit all made O on planetary pinion 7,14 pitch circles arbitrarily in internal gear 2,13
1Straight reciprocating motion, by the bearing pin O of planetary pinion 7,14 pitch circles
3, O
3' driving push rod 5,16 to do straight reciprocating motion, push rod 5,16 drives plunger 4,15 and do straight reciprocating motion in plunger case 3,12, realizes inhaling the action of pressure oil.Two planetary pinions tie up to and adopt phase difference on the circumference is 90 ° arrangement, can reduce the ripple amplitude of instantaneous flow.
Double-action four plunger hydraulic pumps employing epicyclic train of the present invention will rotatablely move and change the straight reciprocating motion that does not have the inclination angle of plunger push rod into, make the slip of plunger non-lateral pressure and termination, reduce frictional force.No plane general motion parts in the mechanical transmission mechanism make system running steadily, vibrate for a short time, and noise is low.Because special mechanical transmission structure, plunger can not produce owing to seize or asphyxia by external pressure on the chest and abdomen phenomenon under the high pressure, be highly suitable for the operating mode of ultrahigh pressure.
When the drive mechanism completely reversibility of double-action four plunger hydraulic pumps of the present invention, rotational power are imported by rotating shaft 8, can produce pressure oil output, use as oil hydraulic pump.As shown in Figure 3, identical with above-mentioned double-action four plunger hydraulic pump structures, with inlet port P wherein
1Change into and press hydraulic fluid port P
3, feed high pressure oil, press hydraulic fluid port P
2Change oil drain out P into
4Insert fuel tank, said hydraulic oil distribution system also comprises the oil pipe of rotating shaft 8, rotating sleeve 11, fixed cover 9, the oil groove of offering, oil circuit, connection oil groove and plunger case on rotating sleeve 11, wherein oil pipe 3 ' an end communicate with the left chamber of plunger case 3, the other end communicates with the oil groove e that offers on the circumferencial direction of rotating sleeve 11, oil groove e is the circumference groove, oil groove e communicates with the semicircle oil groove a that offers on the circumferencial direction of rotating sleeve 11 by the oil circuit c that offers in rotating sleeve 11, oil groove a can with press hydraulic fluid port P
3Or oil drain out P
4Communicate; Oil pipe 3 " an end communicate with the right chamber of plunger case 3; the other end communicates with the oil groove f that offers on the circumferencial direction of rotating sleeve 11; oil groove f is the circumference groove; oil groove f communicates with the semicircle oil groove b that offers on the circumferencial direction of rotating sleeve 11 by the oil circuit d that offers in rotating sleeve 11, oil groove b can with press hydraulic fluid port P
3Or oil drain out P
4Communicate; Oil pipe 12 ' an end communicate with the left chamber of plunger case 12, the other end communicates with the oil groove m that offers on the circumferencial direction of rotating sleeve 11, oil groove m is the circumference groove, oil groove m communicates with the semicircle oil groove h that offers on the circumferencial direction of rotating shaft 8 by the oil circuit j that offers in rotating sleeve 11, oil groove h can with press hydraulic fluid port P
3Or oil drain out P
4Communicate; Oil pipe 12 " an end communicate with the right chamber of plunger case 12; the other end communicates with the oil groove k that offers on the circumferencial direction of rotating sleeve 11; oil groove k is the circumference groove; oil groove k communicates with the semicircle oil groove g that offers on the circumferencial direction of rotating sleeve 11 by the oil circuit i that offers in rotating shaft 8, oil groove g can with press hydraulic fluid port P
3Or oil drain out P
4Communicate;
Machine driven system comprises rotating shaft 8, be contained in gear 10 in the rotating shaft 8, with gear 10 meshed gears 1, two epicyclic trains, two plunger cases and two pairs of plungers, planetary pinion 7,14 is contained in the rotating shaft O of gear 1 respectively
1Rotating shaft O on the extended tie-rod
2, O
2' on, two internal gears 2,13 maintain static.
According to above-described double-action four plunger piston hydraulic motors, its gear 10 equates that with the number of teeth of gear 1 gear ratio of planetary pinion 7,14 and internal gear 2,13 is 1: 2; Be as the criterion constantly with left plunger 4 left lateral journey in plunger case 3, the phase place of planetary pinion 7 place tie-rods is 0 °, the circumferential phase difference of the tie-rod of two epicyclic trains is 90 °, and the phase place of oil groove e is 0 °, and the phase place of oil groove a is 180 °, the phase place of oil groove f is 180 °, the phase place of oil groove b is 0 °, and the phase place of oil groove k is-90 °, and the phase place of oil groove g is 90 °, the phase place of oil groove m is 90 °, and the phase place of oil groove h is-90 °.
According to above-described double-action four plunger piston hydraulic motors, its high pressure oil is by pressing hydraulic fluid port P
3Feed oil groove a, through oil circuit c, oil groove e, oil pipe 3 ' enter left plunger cavity 3, drive left plunger 4 moving linearly to the right, right plunger 4 is discharged fluid right plunger cavity 3 to the right, through oil pipe 3 ", oil groove f, oil circuit d, oil groove b, through oil drain out P
4Send into fuel tank, meanwhile, high pressure oil is by pressing hydraulic fluid port P
3Feed oil groove g, through oil circuit i, oil groove k, oil pipe 12 " enter right plunger cavity 12, drive right plunger 15 moving linearly left, left plunger 15 is discharged fluid left plunger cavity 12 left, through oil pipe 12 ', oil groove m, oil circuit j, oil groove h, through oil drain out P
4Send into fuel tank; Left side plunger 4 is by push rod 5, rotating shaft O
3Drive planetary pinion 7 and rotate, rotate by tie-rod driven gear 1, gear 1 driven gear 10 rotates, by rotating shaft 8 outputting powers; Right plunger 12 is by push rod 16, rotating shaft O
3' drive planetary pinion 14 to rotate, rotate by tie-rod driven gear 1, gear 1 driven gear 10 rotates, by rotating shaft 8 outputting powers;
After rotating shaft 8 was rotated 180 °, high pressure oil was by pressing hydraulic fluid port P
3Feed oil groove b, through oil circuit d, oil groove f, oil pipe 3 " enter right plunger cavity 3, drive right plunger 4 moving linearly left, left plunger 4 is discharged fluid left plunger cavity 3 left, through oil pipe 3 ', oil groove e, oil circuit c, oil groove a, through oil drain out P
4Send into fuel tank, meanwhile, right plunger 4 is by push rod 5, rotating shaft O
3Drive planetary pinion 7 and rotate, rotate by tie-rod driven gear 1, gear 1 driven gear 10 rotates, by rotating shaft 8 outputting powers; Meanwhile, high pressure oil feeds oil groove h by pressing hydraulic fluid port P3, through the left plunger cavity 12 of oil circuit j, oil groove m, oil pipe 12 ' enter, drive left plunger 15 moving linearly to the right, right plunger 15 is discharged fluid oil piston chamber 12 to the right, through oil pipe 12 ", oil groove k, oil circuit i, oil groove g; P4 sends into fuel tank through oil drain out; meanwhile; left plunger 12 rotates by push rod 16, rotating shaft O3 ' drives planetary pinion 14; rotate by tie-rod driven gear 1, and 10 rotations of gear 1 driven gear are by rotating shaft 8 outputting powers.Rotating shaft 8 continues rotation, repeats said process.
As shown in Figure 3, when using as oil hydraulic motor, under the effect of high pressure oil, plunger 4,15 is done straight reciprocating motion in plunger case 3,12, by push rod 5,16 and the bearing pin O by planetary pinion 7,14 pitch circles
3, O
3' drive planetary pinion 7,14 in internal gear 2,13, to revolve round the sun, again by tie-rod rotating shaft O
2, O
2' drive rotating shaft O
1, gear 1 rotates, gear 1 driven gear 10 rotates, by rotating shaft 8 outputting powers.Two planetary pinions tie up to and adopt phase difference on the circumference is 90 ° arrangement, can reduce the ripple amplitude of instantaneous flow.
Double-action four plunger piston hydraulic motors of the present invention change the straight reciprocating motion that does not have the inclination angle of plunger push rod into epicyclic train rotatablely move, and make the slip of plunger non-lateral pressure and termination, have reduced frictional force.No plane general motion parts in the mechanical transmission mechanism make system running steadily, vibrate for a short time, and noise is low.Because special mechanical transmission structure, plunger can not produce owing to seize or asphyxia by external pressure on the chest and abdomen phenomenon under the high pressure, be highly suitable for the operating mode of ultrahigh pressure.
Claims (6)
1, double-action four plunger hydraulic pumps are made up of machine driven system and said hydraulic oil distribution system, comprise plunger and plunger case, and plunger is done straight reciprocating motion in plunger case, and rotating shaft (8) is rotated under motor driving, and feature of the present invention is:
Machine driven system comprises rotating shaft (8), be contained in gear (10) in the rotating shaft (8), with gear (10) meshed gears (1), two epicyclic trains, two pairs of plunger cases and two pairs of plungers, planetary pinion (7), (14) are contained in the rotating shaft (O of gear (1) respectively
1) rotating shaft (O on the extended tie-rod
2), (O
2') on, two internal gears (2), (13) maintain static, rotating shaft (8) driven gear (10) rotates, gear (10) driven gear (1) rotates, gear (1) by tie-rod drive planetary pinion (7), rotate (14), planetary pinion (7), (14) by push rod (5), (16) drive plunger (4) respectively, (15) do straight reciprocating motion in plunger case (3), (12);
Said hydraulic oil distribution system comprise rotating shaft (8), with coaxial rotating sleeve (11) of rotating shaft (8) and fixed cover (9) on oil groove, oil circuit, the oil pipe that is connected oil groove and plunger case offered, wherein an end of oil pipe (3 ') communicates with the left chamber of plunger case (3), the other end communicates with the oil groove of offering on the circumferencial direction of rotating sleeve (11) (e), oil groove (e) is the circumference groove, oil groove (e) communicates with the semicircle oil groove of offering on the circumferencial direction of rotating sleeve (11) (a) by the oil circuit of offering in rotating sleeve (11) (c), oil groove (a) and inlet port (P
1) or press hydraulic fluid port (P
2) communicate; (end of 3 ") communicates with the right chamber of plunger case (3) oil pipe; the other end communicates with the oil groove of offering on the circumferencial direction of rotating sleeve (11) (f); oil groove (f) is the circumference groove; oil groove (f) communicates with the semicircle oil groove of offering on the circumferencial direction of rotating sleeve (11) (b) by the oil circuit of offering in rotating sleeve (11) (d), oil groove (b) and inlet port (P
1) or press hydraulic fluid port (P
2) communicate; One end of oil pipe (12 ') communicates with the left chamber of plunger case (12), the other end communicates with the oil groove of offering on the circumferencial direction of rotating sleeve (11) (m), oil groove (m) is the circumference groove, oil groove (m) communicates with the semicircle oil groove of offering on the circumferencial direction of rotating sleeve (11) (h) by the oil circuit of offering in rotating sleeve (11) (j), oil groove (h) and inlet port (P
1) or press hydraulic fluid port (P
2) communicate; (end of 12 ") communicates with the right chamber of plunger case (12) oil pipe; the other end communicates with the oil groove of offering on the circumferencial direction of rotating sleeve (11) (k); oil groove (k) is the circumference groove; oil groove (k) communicates with the semicircle oil groove of offering on the circumferencial direction of rotating sleeve (11) (g) by the oil circuit of offering in rotating sleeve (11) (i), oil groove (g) and inlet port (P
1) or press hydraulic fluid port (P
2) communicate.
2, double-action four plunger hydraulic pumps according to claim 1 is characterized in that gear (10) equates with the number of teeth of gear (1), and planetary pinion (7), (14) are 1: 2 with the gear ratio of internal gear (2), (13); Be as the criterion constantly with left plunger (4) left lateral journey in plunger case (3), the phase place of planetary pinion (7) place tie-rod is 0 °, the circumferential phase difference of the tie-rod of two epicyclic trains is 90 °, and the phase place of oil groove (e) is 0 °, and the phase place of oil groove (a) is 180 °, the phase place of oil groove (f) is 180 °, the phase place of oil groove (b) is 0 °, and the phase place of oil groove (k) is-90 °, and the phase place of oil groove (g) is 90 °, the phase place of oil groove (m) is 90 °, and the phase place of oil groove (h) is-90 °.
3, double-action four plunger hydraulic pumps according to claim 1 is characterized in that being as the criterion constantly with left plunger (4) left lateral journey in plunger case (3), and rotating shaft (8) is rotated, and rotates by gear (10) driven gear (1), by rotating shaft (O
1) and tie-rod drive planetary pinion (2), (14) (O around the shaft respectively
2), (O
2') revolution, again by rotating shaft (O
3) drive push rod (5), plunger (4) moves right, left plunger (4) carries out oil suction campaign to the right, this moment, fluid passed through inlet port (P
1), oil groove (a), oil circuit (c), oil groove (e), oil pipe (3 ') suck the left chamber of plunger case (3), right plunger (4) is pressed the oil motion to the right, with fluid through oil groove (f), oil circuit (d), oil groove (b), press hydraulic fluid port (P
2) extrude; By rotating shaft (O
3') driving push rod (16), plunger (15) to left movement, left plunger (15) is pressed the oil motion left, and fluid passed through oil pipe (12 '), oil groove (m), oil circuit (j), oil groove (h), pressed hydraulic fluid port (P this moment
2') extrude the left chamber of plunger case (12), right plunger (12) carries out the oil suction campaign left, with fluid through inlet port (P
1), oil groove (g), oil circuit (i), oil groove (k) suck the right chamber of plunger case (12);
After rotating shaft (8) was rotated 180 °, the oil motion was pressed in left plunger (4) beginning left, with fluid through oil pipe (3 '), oil groove (e), oil circuit (c), oil groove (a), press hydraulic fluid port (P
2) extrude the left chamber of plunger case (3), right plunger (4) carries out the oil suction campaign left, with fluid through inlet port (P
1), (3 ") suck the right chamber of plunger cases (3) for oil groove (b), oil circuit (d), oil groove (f), oil pipe; Meanwhile, the oil suction campaign is carried out in left plunger (12) beginning to the right, with fluid through inlet port (P
1), oil groove (h), oil circuit (j), oil groove (m) suck the left chamber of plunger case (12), right plunger (12) is pressed the oil motion to the right, with the right chamber of fluid through oil groove (k), oil circuit (i), oil groove (g) extrusion plunger case (12), rotating shaft (8) continues rotation, repeats said process.
4, double-action four plunger piston hydraulic motors, form by machine driven system and said hydraulic oil distribution system, comprise plunger and plunger case, plunger is done straight reciprocating motion in plunger case, and feature of the present invention is: with the inlet port (P in described double-action four plunger hydraulic pumps of claim 1
1) change into and press hydraulic fluid port (P
3), feed high pressure oil, press hydraulic fluid port (P
2) change oil drain out (P into
4), insert fuel tank, said hydraulic oil distribution system also comprises rotating shaft (8), rotating sleeve (11), fixed cover (9), the oil groove of on rotating sleeve (11), offering, oil circuit, the oil pipe that connects oil groove and plunger case, wherein an end of oil pipe (3 ') communicates with the left chamber of plunger case (3), the other end communicates with the oil groove of offering on the circumferencial direction of rotating sleeve (11) (e), oil groove (e) is the circumference groove, oil groove (e) communicates with the semicircle oil groove of offering on the circumferencial direction of rotating sleeve (11) (a) by the oil circuit of offering in rotating sleeve (11) (c), oil groove (a) and pressure hydraulic fluid port (P
3) or oil drain out (P
4) communicate; (end of 3 ") communicates with the right chamber of plunger case (3) oil pipe; the other end communicates with the oil groove of offering on the circumferencial direction of rotating sleeve (11) (f); oil groove (f) is the circumference groove; oil groove (f) communicates with the semicircle oil groove of offering on the circumferencial direction of rotating sleeve (11) (b) by the oil circuit of offering in rotating sleeve (11) (d), oil groove (b) and pressure hydraulic fluid port (P
3) or oil drain out (P
4) communicate; One end of oil pipe (12 ') communicates with the left chamber of plunger case (12), the other end communicates with the oil groove of offering on the circumferencial direction of rotating sleeve (11) (m), oil groove (m) is the circumference groove, oil groove (m) communicates with the semicircle oil groove of offering on the circumferencial direction of rotating shaft (8) (h) by the oil circuit of offering in rotating sleeve (11) (j), oil groove (h) and pressure hydraulic fluid port (P
3) or oil drain out (P
4) communicate; (end of 12 ") communicates with the right chamber of plunger case (12) oil pipe; the other end communicates with the oil groove of offering on the circumferencial direction of rotating sleeve (11) (k); oil groove (k) is the circumference groove; oil groove (k) communicates with the semicircle oil groove of offering on the circumferencial direction of rotating sleeve (11) (g) by the oil circuit of offering in rotating shaft (8) (i), oil groove (g) and pressure hydraulic fluid port (P
3) or oil drain out (P
4) communicate;
Machine driven system comprises rotating shaft (8), be contained in gear (10) in the rotating shaft (8), with gear (10) meshed gears (1), two epicyclic trains, two plunger cases and two pairs of plungers, planetary pinion (7), (14) are contained in the rotating shaft (O of gear (1) respectively
1) rotating shaft (O on the extended tie-rod
2), (O
2') on, two internal gears (2), (13) maintain static.
5, double-action four plunger piston hydraulic motors according to claim 4 is characterized in that gear (10) equates with the number of teeth of gear (1), and planetary pinion (7), (14) are 1: 2 with the gear ratio of internal gear (2), (13); Be as the criterion constantly with left plunger (4) left lateral journey in plunger case (3), the phase place of planetary pinion (7) place tie-rod is 0 °, the circumferential phase difference of the tie-rod of two epicyclic trains is 90 °, and the phase place of oil groove (e) is 0 °, and the phase place of oil groove (a) is 180 °, the phase place of oil groove (f) is 180 °, the phase place of oil groove (b) is 0 °, and the phase place of oil groove (k) is-90 °, and the phase place of oil groove (g) is 90 °, the phase place of oil groove (m) is 90 °, and the phase place of oil groove (h) is-90 °.
6, double-action four plunger piston hydraulic motors according to claim 4 is characterized in that high pressure oil is by pressing hydraulic fluid port (P
3) feeding oil groove (a), through oil circuit (c), oil groove (e), oil pipe (3 '), enter left plunger cavity (3), drive left plunger (4) moving linearly to the right, right plunger (4) is discharged fluid right plunger cavity (3) to the right, (3 "), oil groove (f), oil circuit (d), oil groove (b) are through oil drain out (P through oil pipe
4) enter fuel tank, meanwhile, high pressure oil is by pressing hydraulic fluid port (P
3) feeding oil groove (g), (12 ") enter right plunger cavity (12); drive right plunger (15) moving linearly left; left plunger (15) is discharged fluid left plunger cavity (12) left; through oil pipe (12 '), oil groove (m), oil circuit (j), oil groove (h), through oil drain out (P through oil circuit (i), oil groove (k), oil pipe
4) enter fuel tank; Left side plunger (4) is by push rod (5), rotating shaft (O
3) drive planetary pinion (7) rotation, rotate by tie-rod driven gear (1), gear (1) driven gear (10) rotates, by rotating shaft (8) outputting power; Right plunger (12) is by push rod (16), rotating shaft (O
3') drive planetary pinion (14) rotation, rotate by tie-rod driven gear (1), gear (1) driven gear (10) rotates, by rotating shaft (8) outputting power;
After rotating shaft (8) was rotated 180 °, high pressure oil was by pressing hydraulic fluid port (P
3) feeding oil groove (b), (3 ") enter right plunger cavity (3); drive right plunger (4) moving linearly left; left plunger (4) is discharged fluid left plunger cavity (3) left; through oil pipe (3 '), oil groove (e), oil circuit (c), oil groove (a), through oil drain out (P through oil circuit (d), oil groove (f), oil pipe
4) enter fuel tank, meanwhile, right plunger (4) is by push rod (5), rotating shaft (O
3) drive planetary pinion (7) rotation, rotate by tie-rod driven gear (1), gear (1) driven gear (10) rotates, by rotating shaft (8) outputting power; Meanwhile, high pressure oil is by pressing hydraulic fluid port (P
3) feeding oil groove (h), enter left plunger cavity (12) through oil circuit (j), oil groove (m), oil pipe (12 '), drive left plunger (15) moving linearly to the right, right plunger (15) is discharged fluid oil piston chamber (12) to the right, (12 "), oil groove (k), oil circuit (i), oil groove (g) are through oil drain out (P through oil pipe
4) enter fuel tank, meanwhile, left plunger (12) is by push rod (16), rotating shaft (O
3') drive planetary pinion (14) rotation, rotate by tie-rod driven gear (1), gear (1) driven gear (10) rotates, and by rotating shaft (8) outputting power, rotating shaft (8) continues rotation, the repetition said process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021394385A CN1159526C (en) | 2002-09-13 | 2002-09-13 | Double-acting four-plunger hydraulic pump or motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021394385A CN1159526C (en) | 2002-09-13 | 2002-09-13 | Double-acting four-plunger hydraulic pump or motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1401894A CN1401894A (en) | 2003-03-12 |
| CN1159526C true CN1159526C (en) | 2004-07-28 |
Family
ID=4750082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021394385A Expired - Fee Related CN1159526C (en) | 2002-09-13 | 2002-09-13 | Double-acting four-plunger hydraulic pump or motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1159526C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443742C (en) * | 2004-09-09 | 2008-12-17 | 国营四七一厂 | Hydraulic variable pump with four plunger and motor |
| CN110593752B (en) | 2019-10-22 | 2024-03-22 | 中国地质大学（北京） | All-metal underground power drilling tool based on multistage double-plunger-eccentric gear mechanism |
-
2002
- 2002-09-13 CN CNB021394385A patent/CN1159526C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1401894A (en) | 2003-03-12 |
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