CN105485288B - A kind of hydraulic pressure stepper and its control method - Google Patents
A kind of hydraulic pressure stepper and its control method Download PDFInfo
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- CN105485288B CN105485288B CN201610058757.5A CN201610058757A CN105485288B CN 105485288 B CN105485288 B CN 105485288B CN 201610058757 A CN201610058757 A CN 201610058757A CN 105485288 B CN105485288 B CN 105485288B
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- mouthfuls
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
- F16H47/02—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
- Hydraulic Motors (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The present invention relates to a kind of hydraulic pressure stepper, mainly include left and right shell, a pair of reduction gearing, one zero motor, one group of control valve and a concave wheel, a concave wheel in parallel on zero motor input shaft, the on and off of a servomotor driven change valve is controlled with concave wheel, servomotor driven change valve is in parallel with the step motion control valve that an electromagnetic switch is controlled simultaneously, realize that electromagnetic pulse signal causes the action that motor rotates a circle each time, again by speed reducing ratio be 1: 8 gear mesh, the input shaft spinning movement of one week is converted to the spinning movement in 1/8 week on output shaft, realize the walking-function of 45 ° of rotation each time, the moment of torsion of motor is decelerated gear and amplifies 8 times of outputs, recycling the directional control valve of an electromagnetic switch control can make output shaft reversely export stepwise operation, it can apply to building rig and add the occasions such as linkage automatically.
Description
Technical field
The present invention relates to a kind of hydraulic pressure stepper and its control method, high pulling torque step-by-step movement rotation operating mode is mainly used in,
Rotate 1/8 every time according to both forward and reverse directions and rotate into row stepwise motion, can apply to building rig and add the occasions such as linkage automatically.
Background technology
Generally add in building rig and realize accurate angle inside linkage by the way of hydraulic motor plus electrical control
Rotation control, because the minimum speed of hydraulic motor has certain limitations, can cause hydraulic pressure when motor rotary speed is less than 5 revs/min
Motor hydraulic efficiency drastically declines, increase hydraulic pressure loss, reduces the moment of torsion of motor output, and easily cause using electrical control
Deviations, it is impossible to realize the accurate anglec of rotation, while the control to rotary speed is relatively difficult, accordingly, it would be desirable to a kind of knot
Structure is compact, and control is reliable, it is possible to achieve the hydraulic pressure stepper of accurate angle rotation meets this kind of operating mode.
The content of the invention
The technical problems to be solved by the invention are：Add electric controling mode hydraulic efficiency low for existing hydraulic motor
Under, the problems such as the control of small output torque, electrical control location difficulty, rotary speed is difficult there is provided a kind of hydraulic pressure stepper and its
Control method, is suitable for once rotating 1/8 turn, the operation occasion of output torque greatly.
In order to solve the above-mentioned technical problem, the present invention is achieved through the following technical solutions：
A kind of hydraulic pressure stepper, mainly includes left and right shell, a pair of reduction gearing, zero motor, one group of control valve
And a concave wheel, it is characterised in that：The zero motor flange is fixedly mounted on left outside shell, zero motor rotating shaft and little gear
Axle left end synchronous rotary by the way of key connection, pinion shaft is arranged in the shell of left and right by bearing, can follow low speed
Motor both forward and reverse directions are rotated, and a little gear is fixedly mounted on pinion shaft by a key, and little gear follows pinion shaft
Synchronous rotary；The transmission ratios of the gear wheel and little gear are 8: 1, are engaged with little gear, and gear wheel is fixed by a key
In Large Gear Shaft, Large Gear Shaft is arranged in the shell of left and right by bearing, and the rotation of gear wheel can be followed to carry out just
Opposite direction rotates.
The concave wheel is fixedly mounted on the right-hand member of pinion shaft by a key, and its periphery has a breach, control valve
The commutation rollers for having a servomotor driven change valve in group can be rolled on concave wheel periphery, when commutation rollers enter concave wheel breach
When, servomotor driven change valve starts commutation, and when commutation rollers reach concave wheel indentations bottom, servomotor driven change valve commutation terminates, its P,
T, A, B hydraulic fluid port are all closed.
One group of control valve includes and servomotor driven change valve, one has been fixedly mounted on a control valve block, control valve block
Individual step motion control valve, a reversing control valve, step motion control valve and reversing control valve are solenoid directional control valve, are believed by electric switch
Number control it to commutate, be connected after servomotor driven change valve is in parallel with the P mouths of stepping reversal valve with high pressure fuel source, with fuel tank after T mouthfuls of parallel connections
Connection, is connected after A mouthfuls of parallel connections with the P mouths of reversing control valve, is connected after B mouthfuls of parallel connections with the T mouths of reversing control valve, reversing control valve
A mouths be connected with the A mouths of zero motor, the B mouths of reversing control valve are connected with the B mouths of zero motor.
A kind of control method of hydraulic pressure stepper：Original state is the commutation rollers of servomotor driven change valve at concave wheel breach bottom
Portion, tetra- mouths of P, T, A, B of servomotor driven change valve are all obstructed, the electromagnet DT1 and the electromagnetism of reversing control valve of step motion control valve
Iron DT2 whole no powers, tetra- mouths of P, T, A, B of step motion control valve are all obstructed, and the P mouths of reversing control valve are logical A mouthfuls, B mouthfuls of logical T
Mouthful, because the P mouths of servomotor driven change valve and step motion control valve are all closings, the hydraulic oil of high pressure fuel source cannot be introduced into zero motor
A mouths and B mouthful, motor is motionless, simultaneously because the A mouths of servomotor driven change valve and step motion control valve and B mouthfuls are all to close, motor
A mouthfuls and B mouthfuls of oil is all lockable, therefore motor will not follow pinion shaft to rotate；Electromagnet DT1 mono- to step motion control valve
Individual electric signal, step motion control valve commutation, the oil of high pressure fuel source enters the A mouths of step motion control valve by the P mouths of step motion control valve, leads to
The P mouths for crossing reversing control valve enter A mouths of reversing control valve, into A mouthful of zero motor, and promotion zero motor rotates, and is extruded
The oil gone out is by the B mouths of B mouthful of zero motor entrance reversing control valve, by returning to fuel tank, low speed after B mouthfuls, T mouthfuls of step motion control valve
Motor is after 30 ° rotate, and the commutation rollers of servomotor driven change valve depart from concave wheel breach so that servomotor driven change valve all commutates, it
P mouths connected with A mouthfuls, B mouthfuls are connected with T mouthfuls, now power off the electromagnet DT1 of step motion control valve, and step motion control valve spring is answered
Position is to the whole closed states of P, T, A, B, and the hydraulic oil of high pressure fuel source is continued to press on low by A mouthfuls of the P mouths entrance of servomotor driven change valve
Speed motor rotating Vortex, zero motor rotates a circle, and the commutation rollers of servomotor driven change valve enter concave wheel breach, and servomotor driven change valve is slow
Slow to close, the P mouths of increase servomotor driven change valve arrive A mouthfuls of restriction effect, zero motor rotating speed reduction, when the commutation of servomotor driven change valve
When roller is to concave wheel indentations bottom, servomotor driven change valve Close All, zero motor stops the rotation, and completes the fortune that zero motor one is enclosed
It is dynamic.
The gear ratio of the zero motor and little gear synchronous rotary, gear wheel and little gear is 8: 1, Large Gear Shaft with it is big
Gear synchronous rotates, and when zero motor rotates a circle, the left end of Large Gear Shaft reversely exports 1/8 week, i.e., 45 °, if using not
With the gear mesh of gearratio, different step angles can be exported.
The electromagnet DT2 of the reversing control valve is powered, reversing solenoid valve commutation, and its P mouthful logical B mouthfuls, and A mouthfuls lead to T mouthfuls, can be with
Zero motor is reversely rotated, the left end delivery outlet of Large Gear Shaft is reversely rotated.
After said structure：The angle that can accurately control to rotate each time using the gear ratio of reduction gearing；It is motor-driven
The valve core opening size of reversal valve enters concave wheel notch depth inverse ratio with commutation rollers, it is possible to achieve zero motor quickly rotates,
The control effect slowly stopped, it is to avoid produce and stop impact；Electrical control is simple, as long as electricity consumption digital output modul reversing control valve
Electromagnet with step motion control valve is that accurate stepwise operation can be achieved；Zero motor output torque amplifies 8 times.
Brief description of the drawings
A kind of hydraulic pressure stepper schematic diagram of accompanying drawing 1
A kind of hydraulic pressure stepper three-dimensional structure profile of accompanying drawing 2
A kind of hydraulic pressure stepper three-dimensional structure design sketch 1 of accompanying drawing 3
A kind of hydraulic pressure stepper three-dimensional structure design sketch 2 of accompanying drawing 4
Embodiment
The present invention is elaborated below in conjunction with accompanying drawing and specific implementation process.
Referring to Fig. 1~Fig. 4, a kind of hydraulic pressure stepper, by zero motor 1, key I2, outer-hexagonal bolts I3, sealing ring I4, end
Cover I5, it is Large Gear Shaft 6, sealing ring II7, soket head cap screw I8, seal washer I9, bearing I 10, left outside shell 11, right casing 12, big
Gear 13, key II14, support ring I15, bearing I I16, support ring II17, bearing I II18, seal washer II19, end cap II20,
Sealing ring III21, pinion shaft 22, key III23, concave wheel 24, servomotor driven change valve 25, control valve block 26, oil return pipe 27, hydraulic oil
Pipe 28, fuel tank 29, high pressure fuel source 30, step motion control valve 31, reversing control valve 32, sealing ring IV33, key IV34, little gear 35,
Bearing I V36, support ring III37, A oil pipe 38, B oil pipes 39, soket head cap screw II40, pipe joint 41, cutting ferrule nut 42, interior six
Angle screw III43, pad 44, outer-hexagonal bolts II45, pipe clamp 46 are constituted, and the Large Gear Shaft 6 in Fig. 1 is the defeated of hydraulic pressure stepper
Go out part, remaining all part is provided to control the motion of Large Gear Shaft 6 and be equipped with；If realizing that little gear rotates
One week and Large Gear Shaft 6 rotate 45 °, it is necessary to which gear wheel and the tooth ratio of little gear are 8: 1；The left side connection of Large Gear Shaft 6
The workpiece of rotation is needed, such as building rig adds the pipe slacking block in linkage.
Shown in Fig. 1, the left side of pinion shaft 22 is arranged in left outside shell 11 by bearing I V36, and the right passes through bearing I II18
In right casing 12, a support ring III37 is installed on the bearing I V36 left sides, and support ring III37 left ends are zero motors 1
Ring flange, the ring flange is fixedly mounted on left outside shell 11 by four outer-hexagonal bolts I3, between ring flange and left outside shell 11
There is sealing ring I4, prevent the lubricating oil in the middle of the shell of left and right from leaking, the left side of pinion shaft 22 and the output shaft of zero motor 1 connect
Connect；A support ring II17 is installed on the bearing I II18 left sides, and support ring II17 left ends push down little gear 35, little gear 35 and small tooth
There is a key IV34 between wheel shaft 22, can allow between little gear 35 and pinion shaft 22 does not have relative rotary motion；Bearing
It is end cap II20 on the right of III18, end cap II20 is fixedly mounted on right casing 12 by four soket head cap screw I8, little gear
There is sealing ring III21 between axle 22 and end cap II20, there is seal washer II19 between end cap II20 and right casing 12, concave wheel 24 is led to
Cross the right that key III23 is arranged on pinion shaft 22.
The left side of Large Gear Shaft 6 is arranged in left outside shell 11 by bearing I 10, and the right is arranged on right casing by bearing I I16
In 12, an end cap I5 is installed on the left side of bearing I 10, and end cap I5 is fixedly mounted on left outside shell 11 by four soket head cap screw I8
On, seal washer I9 is installed between end cap I5 and left outside shell 11, sealing ring II7 is installed between end cap I5 and Large Gear Shaft 6；
The bearing I I16 left sides are provided with support ring I15, and gear wheel 13 is axially fixed in Large Gear Shaft 6 by support ring I15, and key II14 will
Gear wheel 13 can drive the synchronous rotary of Large Gear Shaft 6 with the synchronous rotary of Large Gear Shaft 6, the i.e. spinning movement of gear wheel 13.
Shown in Fig. 3, reversing control valve 32, step motion control valve 31, servomotor driven change valve 25 are all fixed using soket head cap screw I8
Onto control valve block 26, control valve block 26 is fixed on left outside shell 12 using soket head cap screw II40, and control valve block 26 can enter
Row is not more than 2 millimeters of left and right fine setting so that the commutation rollers of servomotor driven change valve 25 are firm when reaching the indentations bottom of concave wheel 24
Well so that P, T, A, B Close All of servomotor driven change valve 25；Inside control valve block 26, by the P mouths of servomotor driven change valve 25 and step
The P mouths for entering control valve 31 are in parallel, and the T mouths of servomotor driven change valve 25 are in parallel with the T mouths of step motion control valve 31, the A of servomotor driven change valve 25
Mouth, the A mouths of step motion control valve 31 are in parallel with the P mouths of reversing control valve 32, B mouths, the B of step motion control valve 31 of servomotor driven change valve 25
Mouth is in parallel with the T mouths of reversing control valve 32.The A mouths of reversing control valve 32 are connected with the A mouths of zero motor 1, reversing control valve 32
B mouths be connected with the B mouths of zero motor 1.
Left outside shell 11 is connected with right casing 12 with soket head cap screw III43, centre one sealing ring IV33, A oil pipe 38 of folder
Fixed with B oil pipes 39 by pipe clamp 46, pipe clamp 46 is fixed on left outside shell 11 and right casing 12 by outer-hexagonal bolts II45.
The workflow and control method of 45 ° of dextrorotation：Original state is the commutation rollers of servomotor driven change valve 25 recessed
The indentations bottom of wheel 24, tetra- mouths of P, T, A, B of servomotor driven change valve 25 are all closed, the electromagnet DT1 of step motion control valve 31 and
The whole no powers of the electromagnet DT2 of reversing control valve 32, tetra- mouths of P, T, A, B of step motion control valve 31 are all closed, commutation control
The P mouths of valve 32 processed are logical A mouthfuls, and B mouthfuls logical T mouthfuls, because the P mouths of servomotor driven change valve 25 and step motion control valve 31 are all closing, high pressure
The hydraulic oil of oil sources 30 cannot be introduced into zero motor 1 A mouths and B mouthfuls, zero motor 1 is motionless, simultaneously because servomotor driven change valve 25
All it is closing with the A mouths of step motion control valve 31 and B mouthfuls, the A mouths of zero motor 1 and B mouthfuls of oil are all lockable, therefore low speed
Motor 1 will not follow pinion shaft 22 to rotate；To mono- electric signal of electromagnet DT1 of step motion control valve 31, step motion control valve 31
Commutation, the hydraulic oil of high pressure fuel source 30 enters the A mouths of step motion control valve 31 by the P mouths of step motion control valve 31, is controlled by commutating
The P mouths of valve 32 processed enter the A mouths of reversing control valve 32, into the A mouths of zero motor 1, promote the rotate counterclockwise of zero motor 1,
The low pressure oil being squeezed out enters the B mouths of reversing control valve 32 by the B mouths of zero motor 1, passes through the B of step motion control valve 31
Mouthful, fuel tank 29 is returned to after T mouthful, zero motor 1 after 30 ° rotate, the commutation rollers disengaging concave wheel 24 of servomotor driven change valve 25
Breach so that all commutations of servomotor driven change valve 25, its P mouths are connected with A mouthfuls, and B mouthfuls connect with T mouthfuls, now by step motion control valve
31 electromagnet DT1 power-off, the spring reset of step motion control valve 31 to the whole closed states of P, T, A, B, the high pressure of high pressure fuel source 30
Oil continues to press on the rotate counterclockwise of zero motor 1, the rotate counterclockwise of zero motor 1 by the P mouths of servomotor driven change valve 25 into A mouthfuls
One week, the commutation rollers of servomotor driven change valve 25 entered the breach of concave wheel 24, and servomotor driven change valve 25 is slowly closed, and increased its P mouths to A
The restriction effect of mouth, the reduction of the rotating speed of zero motor 1, when the commutation rollers of servomotor driven change valve 25 are to 24 indentations bottom of concave wheel, machine
The dynamic Close All of reversal valve 25, zero motor 1 stops the rotation, and completes the motion that the rotate counterclockwise one of zero motor 1 is enclosed, low speed horse
Up to 1 and the synchronous rotary of little gear 35,1 rotate counterclockwise of zero motor one week, little gear 35 also rotate counterclockwise one week, gear wheel
13 and the gear ratio of little gear 35 are 8: 1,35 rotate counterclockwise of little gear one week, and gear wheel 13 turns clockwise 1/8 week, canine tooth
Wheel shaft 6 and the synchronous rotary of gear wheel 13, left end 45 ° of the dextrorotation of output of Large Gear Shaft 6.
The workflow and control method of 45 ° of rotate counterclockwise：Original state is that the commutation rollers of servomotor driven change valve 25 exist
The indentations bottom of concave wheel 24, tetra- mouths of P, T, A, B of servomotor driven change valve 25 are all closed, the electromagnet DT1 of step motion control valve 31
With the whole no powers of the electromagnet DT2 of reversing control valve 32, zero motor 1 is motionless；Electromagnet DT2 to reversing control valve 32 is held
Continuous to be powered so that reversing control valve 32 commutates, the P mouths of reversing control valve 32 are logical B mouthfuls, and A mouthfuls are logical T mouthfuls, then to step motion control valve 31
Mono- electric signal of electromagnet DT1, step motion control valve 31 commutates, and the hydraulic oil of high pressure fuel source 30 passes through the P of step motion control valve 31
Mouth enters the A mouths of step motion control valve 31, enters the B mouths of reversing control valve 32 by the P mouths of reversing control valve 32, into low speed horse
Up to 1 B mouths, zero motor 1 is promoted to turn clockwise, the low pressure oil being squeezed out enters commutation by the A mouths of zero motor 1 and controlled
The A mouths of valve 32 processed, by returning to fuel tank 29 after the B mouths of step motion control valve 31, T mouthfuls, zero motor 1 is motor-driven after 30 ° rotate
The commutation rollers of reversal valve 25 depart from the breach of concave wheel 24 so that all commutations of servomotor driven change valve 25, its P mouths are connected with A mouthfuls,
B mouthfuls connect with T mouthfuls, now power off the electromagnet DT1 of step motion control valve 31, the spring reset of step motion control valve 31 to P, T, A, B
Whole closed states, the hydraulic oil of high pressure fuel source 30 continues to press on zero motor 1 by the P mouths of servomotor driven change valve 25 into A mouthfuls
Turn clockwise, the dextrorotation of zero motor 1 is circled, the commutation rollers of servomotor driven change valve 25 enter the breach of concave wheel 24, motor-driven
Reversal valve 25 is slowly closed, and increases the restriction effect that its P mouths arrive A mouthfuls, the rotating speed of zero motor 1 reduction, when servomotor driven change valve 25
Commutation rollers to 24 indentations bottom of concave wheel when, the Close All of servomotor driven change valve 25, zero motor 1 stops the rotation, complete low speed
The motion that the dextrorotation of motor 1 is turned around, zero motor 1 and the synchronous rotary of little gear 35, zero motor 1 turns clockwise one
In week, little gear 35 also circle by dextrorotation, 13 rotate counterclockwise of gear wheel 1/8 week, the rotation synchronous with gear wheel 13 of Large Gear Shaft 6
Turn, the left end of Large Gear Shaft 6 45 ° of rotate counterclockwise of output.
Claims (4)
1. a kind of hydraulic pressure stepper, including zero motor (1), key I (2), outer-hexagonal bolts I (3), sealing ring I (4), end cap I
(5), Large Gear Shaft (6), sealing ring II (7), soket head cap screw I (8), seal washer I (9), bearing I (10), left outside shell (11),
Right casing (12), gear wheel (13), key II (14), support ring I (15), bearing I I (16), support ring II (17), bearing I II
(18), seal washer II (19), end cap II (20), sealing ring III (21), pinion shaft (22), key III (23), concave wheel (24),
Servomotor driven change valve (25), control valve block (26), oil return pipe (27), high-pressure oil pipe (28), fuel tank (29), high pressure fuel source (30), step
Enter control valve (31), reversing control valve (32), sealing ring IV (33), key IV (34), little gear (35), bearing I V (36), support
Ring III (37), A oil pipes (38), B oil pipes (39), soket head cap screw II (40), pipe joint (41), cutting ferrule nut (42), interior hexagonal
Screw III (43), pad (44), outer-hexagonal bolts II (45), pipe clamp (46), it is characterised in that：The Large Gear Shaft (6) is liquid
The output par, c of stepper is pressed, remaining all part is provided to control the motion of Large Gear Shaft (6) and be equipped with；It is described small
Gear shaft (22) left side is inner installed in left outside shell (11) by bearing I V (36), and the right is arranged on right outer by bearing I II (18)
Shell (12) is inner, and a support ring III (37) is installed on bearing I V (36) left side, and support ring III (37) left end is zero motor (1)
Ring flange, the ring flange is fixedly mounted on left outside shell (11) by four outer-hexagonal bolts I (3), ring flange and left outside shell
(11) there is sealing ring I (4) between, prevent the lubricating oil in the middle of the shell of left and right from leaking, pinion shaft (22) left side and zero motor
(1) output shaft connection；A support ring II (17) is installed on bearing I II (18) left side, and support ring II (17) left end is pushed down
Little gear (35), there is a key IV (34) between little gear (35) and pinion shaft (22), can allow little gear (35) and small tooth
Wheel shaft does not have relative rotary motion between (22)；It is end cap II (20) on the right of the bearing I II (18), end cap II (20) passes through
Four soket head cap screw I (8) are fixedly mounted on right casing (12), have sealing ring between pinion shaft (22) and end cap II (20)
III (21), there is seal washer II (19) between end cap II (20) and right casing (12), concave wheel (24) is installed by key III (23)
The right in pinion shaft (22)；Large Gear Shaft (6) left side by bearing I (10) be arranged on left outside shell (11) it is inner, the right
Inner installed in right casing (12) by bearing I I (16), an end cap I (5) is installed on bearing I (10) left side, and end cap I (5) passes through four
Soket head cap screw I (8) is fixedly mounted on left outside shell (11), and seal washer is provided between end cap I (5) and left outside shell (11)
I (9), is provided with sealing ring II (7) between end cap I (5) and Large Gear Shaft (6)；Bearing I I (16) left side is provided with support
Gear wheel (13) is axially fixed in Large Gear Shaft (6) by ring I (15), support ring I (15), key II (14) by gear wheel (13) with
Large Gear Shaft (6) synchronous rotary, the i.e. spinning movement of gear wheel (13) can drive Large Gear Shaft (6) synchronous rotary；Commutation control
Valve (32) processed, step motion control valve (31), servomotor driven change valve (25) are all fixed to control valve block (26) using soket head cap screw I (8)
On, control valve block (26) is fixed on left outside shell (12) using soket head cap screw II (40), and control valve block (26) can be carried out not
Left and right fine setting more than 2 millimeters so that the commutation rollers of servomotor driven change valve (25) are firm when reaching the indentations bottom of concave wheel (24)
Well so that P, T, A, B Close All of servomotor driven change valve (25)；The control valve block (26) is internal, the P of servomotor driven change valve (25)
Mouth is in parallel with the P mouths of step motion control valve (31), and the T mouths of servomotor driven change valve (25) are in parallel with the T mouths of step motion control valve (31), motor-driven
The A mouths of reversal valve (25), the A mouths of step motion control valve (31) are in parallel with the P mouths of reversing control valve (32), servomotor driven change valve (25)
B mouthfuls, the B mouths of step motion control valve (31) it is in parallel with the T mouths of reversing control valve (32)；The A mouths of reversing control valve (32) and low speed horse
A mouths up to (1) are connected, and the B mouths of reversing control valve (32) are connected with the B mouths of zero motor (1)；Outside the left outside shell (11) and the right side
Shell (12) is connected with soket head cap screw III (43), centre one sealing ring IV (33) of folder, and A oil pipes (38) and B oil pipes (39) pass through
Pipe clamp (46) is fixed, and pipe clamp (46) is fixed on left outside shell (11) and right casing (12) by outer-hexagonal bolts II (45).
2. a kind of hydraulic pressure stepper according to claim 1, it is characterised in that：The zero motor (1) and little gear (35)
Synchronous rotary, gear wheel (13) and the gear ratio of little gear (35) are 8: 1, Large Gear Shaft (6) and gear wheel (13) synchronous rotary,
Zero motor (1) rotates a circle, and gear wheel (13) rotates 1/8 week, left end output 1/8 week, i.e., 45 ° of Large Gear Shaft (6).
3. a kind of control method of hydraulic pressure stepper according to claim 1, it is characterised in that：Original state is motor-driven commutation
The commutation rollers of valve (25) are in the indentations bottom of concave wheel (24), tetra- mouths of P, T, A, B all closings of servomotor driven change valve (25), step
Enter the electromagnet DT1 of control valve (31) and electromagnet DT2 all no powers of reversing control valve (32), the P of step motion control valve (31),
Tetra- mouths of T, A, B are all closed, and the P mouths of reversing control valve (32) are logical A mouthfuls, and B mouthfuls logical T mouthfuls, due to servomotor driven change valve (25) and step
The P mouths for entering control valve (31) are all closings, and the hydraulic oil of high pressure fuel source (30) cannot be introduced into the A mouths and B of zero motor (1)
Mouthful, zero motor (1) is motionless, simultaneously because servomotor driven change valve (25) and the A mouths of step motion control valve (31) and B mouthfuls are all to close
, the A mouths of zero motor (1) and B mouthfuls of oil are all lockable, therefore zero motor (1) will not follow pinion shaft (22) to revolve
Turn；To mono- electric signal of electromagnet DT1 of step motion control valve (31), step motion control valve (31) commutation, the height of high pressure fuel source (30)
Force feed enters the A mouths of step motion control valve (31) by the P mouths of step motion control valve (31), is entered by the P mouths of reversing control valve (32)
Enter the A mouths of reversing control valve (32), into the A mouths of zero motor (1), promote zero motor (1) rotate counterclockwise, be squeezed out
Low pressure oil enter the B mouths of reversing control valve (32) by the B mouths of zero motor (1), pass through B mouths, the T of step motion control valve (31)
Fuel tank (29) is returned to after mouthful, zero motor (1) is after 30 ° rotate, and the commutation rollers of servomotor driven change valve (25) depart from concave wheel
(24) breach so that servomotor driven change valve (25) all commutates, its P mouths are connected with A mouthfuls, and B mouthfuls connect with T mouthfuls, now will step
Enter the electromagnet DT1 power-off of control valve (31), step motion control valve (31) spring reset to the whole closed states of P, T, A, B, high pressure
The hydraulic oil of oil sources (30) continues to press on zero motor (1) rotate counterclockwise by the P mouths of servomotor driven change valve (25) into A mouthfuls,
Zero motor (1) rotate counterclockwise one week, the commutation rollers of servomotor driven change valve (25) enter concave wheel (24) breach, servomotor driven change valve
(25) slowly close, increase the restriction effect that its P mouths arrive A mouthfuls, zero motor (1) rotating speed reduction, when servomotor driven change valve (25)
Commutation rollers to concave wheel (24) indentations bottom when, servomotor driven change valve (25) Close All, zero motor (1) stops the rotation, complete
The motion enclosed into zero motor (1) rotate counterclockwise one, zero motor (1) and little gear (35) synchronous rotary, zero motor (1)
Rotate counterclockwise one week, little gear (35) also rotate counterclockwise one week, gear wheel (13) and the gear ratio of little gear (35) are 8:
1, little gear (35) rotate counterclockwise one week, gear wheel (13) turns clockwise 1/8 week, Large Gear Shaft (6) and gear wheel (13)
Synchronous rotary, 45 ° clockwise of the left end output of Large Gear Shaft (6).
4. a kind of control method of hydraulic pressure stepper according to claim 1, it is characterised in that：Original state is motor-driven commutation
The commutation rollers of valve (25) are in the indentations bottom of concave wheel (24), tetra- mouths of P, T, A, B all closings of servomotor driven change valve (25), step
Enter the whole no powers of electromagnet DT1 and reversing control valve (32) electromagnet DT2 of control valve (31), zero motor (1) is motionless；
Electromagnet DT2 to reversing control valve (32) is persistently powered so that reversing control valve (32) commutates, the P of reversing control valve (32)
Mouth is logical B mouthfuls, and A mouthfuls are logical T mouthfuls, then mono- electric signal of electromagnet DT1 to step motion control valve (31), step motion control valve (31) commutation,
The hydraulic oil of high pressure fuel source (30) enters the A mouths of step motion control valve (31) by the P mouths of step motion control valve (31), is controlled by commutating
The P mouths of valve (32) processed enter the B mouths of reversing control valve (32), into the B mouths of zero motor (1), promote zero motor (1) up time
Pin rotates, and the low pressure oil being squeezed out enters the A mouths of reversing control valve (32) by the A mouths of zero motor (1), passes through stepping control
The B mouths of valve (31) processed, fuel tank (29) is returned to after T mouthfuls, zero motor (1) is after 30 ° rotate, the commutation of servomotor driven change valve (25)
Roller departs from the breach of concave wheel (24) so that servomotor driven change valve (25) all commutates, and its P mouths are connected with A mouthfuls, and B mouthfuls and T mouthfuls even
It is logical, now the electromagnet DT1 of step motion control valve (31) is powered off, step motion control valve (31) spring reset to P, T, A, B is all sealed
Closed state, the hydraulic oil of high pressure fuel source (30) continues to press on zero motor (1) by the P mouths of servomotor driven change valve (25) into A mouthfuls
Turn clockwise, zero motor (1) dextrorotation is circled, the commutation rollers of servomotor driven change valve (25) lack into concave wheel (24)
Mouthful, servomotor driven change valve (25) is slowly closed, and increases the restriction effect that its P mouths arrive A mouthfuls, and machine is worked as in the reduction of zero motor (1) rotating speed
When the commutation rollers of dynamic reversal valve (25) are to concave wheel (24) indentations bottom, servomotor driven change valve (25) Close All, zero motor (1)
Stop the rotation, complete the motion that zero motor (1) dextrorotation is turned around, zero motor (1) and little gear (35) synchronous rotary,
Zero motor (1) dextrorotation is circled, and little gear (35) also circle by dextrorotation, and gear wheel (13) turns 1/8 week counterclockwise,
Large Gear Shaft (6) and gear wheel (13) synchronous rotary, 45 ° counterclockwise of the left end output of Large Gear Shaft (6).
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| CN201610058757.5A CN105485288B (en) | 2016-01-24 | 2016-01-24 | A kind of hydraulic pressure stepper and its control method |
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| CN201610058757.5A CN105485288B (en) | 2016-01-24 | 2016-01-24 | A kind of hydraulic pressure stepper and its control method |
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| CN105485288B true CN105485288B (en) | 2017-10-24 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4088044A (en) * | 1975-12-24 | 1978-05-09 | Taintor Oliver E | Manually controlled semi-automatic step gear transmission |
| CN203868014U (en) * | 2014-03-27 | 2014-10-08 | 尤庆民 | Two-position two-way mechanically-operated change valve |
| CN104196445A (en) * | 2014-08-29 | 2014-12-10 | 桂林市华力重工机械有限责任公司 | Deflection-swinging type semi-automatic rod replacing hydraulic rock drilling machine |
| CN104564863A (en) * | 2014-12-26 | 2015-04-29 | 大连理工大学 | Electrohydraulic control system for rotation motion of pipe splicing machine |
| CN104675991A (en) * | 2013-11-29 | 2015-06-03 | 天津萨克赛斯机械技术开发有限公司 | Hydraulic synchronous gear-shifting system |
-
2016
- 2016-01-24 CN CN201610058757.5A patent/CN105485288B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4088044A (en) * | 1975-12-24 | 1978-05-09 | Taintor Oliver E | Manually controlled semi-automatic step gear transmission |
| CN104675991A (en) * | 2013-11-29 | 2015-06-03 | 天津萨克赛斯机械技术开发有限公司 | Hydraulic synchronous gear-shifting system |
| CN203868014U (en) * | 2014-03-27 | 2014-10-08 | 尤庆民 | Two-position two-way mechanically-operated change valve |
| CN104196445A (en) * | 2014-08-29 | 2014-12-10 | 桂林市华力重工机械有限责任公司 | Deflection-swinging type semi-automatic rod replacing hydraulic rock drilling machine |
| CN104564863A (en) * | 2014-12-26 | 2015-04-29 | 大连理工大学 | Electrohydraulic control system for rotation motion of pipe splicing machine |
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| CN105485288A (en) | 2016-04-13 |
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