CN104533746B - Central hydraulic pump - Google Patents
Central hydraulic pump Download PDFInfo
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- CN104533746B CN104533746B CN201410831662.3A CN201410831662A CN104533746B CN 104533746 B CN104533746 B CN 104533746B CN 201410831662 A CN201410831662 A CN 201410831662A CN 104533746 B CN104533746 B CN 104533746B
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Abstract
A kind of central hydraulic pump includes supporting seat, pressure-oil tank, low-pressure reservoir, switch module, multiple pressure regulation reversal valve and drive mechanism.Multiple spaced high pressure oil outlet is offered on the sidewall of pressure-oil tank, offer multiple spaced low pressure oil on the sidewall of low-pressure reservoir and feed back hole, the high input voltage mouth of pipe of each pressure regulation reversal valve is connected with high pressure oil outlet, the High voltage output mouth of pipe is connected with hydraulic component, decompression feeds back the mouth of pipe and is connected with low pressure oil feedback hole, different according to the pressure that different hydraulic components need, change first passage and second channel and the high input voltage mouth of pipe on valve pocket housing, the High voltage output mouth of pipe and decompression feed back the relative position of the mouth of pipe, allow or stop hydraulic oil from pressure-oil tank input hydraulic pressure device, hydraulic oil is back in low-pressure reservoir from hydraulic component, thus realize using a hydraulic pump to get final product the relatively independent hydraulic component action controlling multiple difference in functionalitys.
Description
Technical field
The present invention relates to hydraulic pump technical field, particularly relate to a kind of central hydraulic pump.
Background technology
Due to the particularity of hydraulic component, many industries use the most in a large number.But current hydraulic component kind
Various, each producer can not be carried out synergistically at aspects such as function, specification, type, performance, parameters
Standard criterion, so causing the phenomenon of a lot " with a hydraulic component it is necessary to configure a set of hydraulic pump ".
Cause the results such as utilization rate is low, dutycycle big, cost residence height, the wasting of resources.Owing to hydraulic pump is separately configured
Need complex parts and circuit design, adding the difficulty of installation and debugging, repair and maintenance while,
Also reduce effectiveness, safety and service life that long term device is run.
Summary of the invention
Based on this, it is necessary to for the problems referred to above, it is provided that it is multiple not that one can realize a hydraulic pump correspondence
The central hydraulic pump of the hydraulic component of congenerous.
A kind of central hydraulic pump, including:
Support seat；
Pressure-oil tank, is arranged on described support seat, the sidewall of described pressure-oil tank offers multiple interval
The high pressure oil outlet arranged, the top of described pressure-oil tank offers the first through hole；
Low-pressure reservoir, has the first end and the second end, and described first end is inserted in institute by described first through hole
Stating in pressure-oil tank, the end of described first end offers the second through hole, is additionally provided with in described low-pressure reservoir
Dividing plate, described dividing plate, between described first end and described second end, described dividing plate offers threeway
Hole, the sidewall of described low-pressure reservoir offers multiple spaced low pressure oil and feeds back hole；
Switch module, including the elastic isolation plunger tip arranged, described isolation plunger tip can be turned on and off described
Third through-hole；
Multiple pressure regulation reversal valves, are arranged at intervals on described support seat, each pressure regulation reversal valve include motor,
Spool and valve pocket housing, described motor can drive described spool to rotate in described valve pocket housing, described spool
Sidewall on offer the first passage and second channel being interconnected, the sidewall of described spool is further opened with
Locating slot, described locating slot and described first passage and described second channel interval are arranged, in described locating slot
Contain the location plunger tip of elastic setting, the sidewall of described valve pocket housing is arranged at intervals with the high input voltage mouth of pipe,
The High voltage output mouth of pipe and decompression feed back the mouth of pipe, and the described high input voltage mouth of pipe is connected with described high pressure oil outlet,
The described High voltage output mouth of pipe is for being connected with hydraulic component, and described decompression feeds back the mouth of pipe and returns with described low pressure oil
Defeated hole is connected；And
Drive mechanism, including power source and piston, described power source orders about described piston in described low-pressure reservoir
Inside reciprocatingly move, make the hydraulic oil in described low-pressure reservoir oppress described isolation plunger tip thus open threeway
Hole, hydraulic oil is pressed into described height via described third through-hole and described second through hole successively from described low-pressure reservoir
In force feed case.
Wherein in an embodiment, also include that cover cap, described cover cap cover on described support seat, described
Cover cap and described support seat are collectively forming a receiving space.
Wherein in an embodiment, the outer surface of described pressure-oil tank is provided with multiple heat radiation groove, institute
State multiple heat radiation groove interval to arrange.
Wherein in an embodiment, each high pressure oil outlet dispels the heat between groove at adjacent two, described
It is plane that pressure-oil tank offers the outer surface of high pressure oil outlet.
Wherein in an embodiment, it is plane that described low-pressure reservoir offers the outer surface in low pressure oil feedback hole.
Wherein in an embodiment, described valve pocket housing being additionally provided with ladder, described sealing capping is to institute
The one side stating valve pocket housing is provided with boss, and described boss abuts against with described ladder.
Wherein in an embodiment, the sidewall of described ladder offers draw-in groove, on the sidewall of described boss
Being provided with buckle, described buckle snaps in described draw-in groove.
Wherein in an embodiment, also include multiple hydraulic tube connecting assembly, plugged into by described hydraulic tube
Assembly connects the described High voltage output mouth of pipe and hydraulic component, connects described decompression and feed back the mouth of pipe and described low pressure oil
Feeding back hole, each hydraulic tube connecting assembly includes that bent sub and nut, described nut are arranged at described bent sub
Two ends.
Wherein in an embodiment, described power source is unidirectional drive motor, and described drive mechanism also includes
Transmission component, described transmission component includes the first screw rod, the first travelling gear, the second screw rod and the second transmission
Gear, described first screw sleeve is located on the motor shaft of described unidirectional drive motor, described first travelling gear
Being meshed with described first screw rod, described first travelling gear is sheathed on described second screw rod, so that described
First travelling gear rotates with described second screw coaxial, described second travelling gear and described second screw rod phase
Engagement.
Wherein in an embodiment, also include that piston rod part, described piston rod part include piston
Driving rotating disk and piston rod, described piston drives the quantity of rotating disk to be two, and two described pistons drive and turn
Being connected by rotating disk pin between dish, described piston drives and is additionally provided with turntable shaft on rotating disk, and described turntable shaft is stretched
For described low-pressure reservoir, described second travelling gear is sheathed on described turntable shaft, described piston rod
One end is arranged on described rotating disk pin, and the other end is connected with described piston.
Above-mentioned central hydraulic pump at least has the advantage that
Power source orders about piston and moves up, and the hydraulic oil in hydraulic component is back to low by pressure regulation reversal valve
In force feed case；Power source orders about piston and moves down, and the hydraulic oil in low-pressure reservoir forces isolation plunger tip compression
Coil tension spring, the hydraulic oil in low-pressure reservoir enters in pressure-oil tank by third through-hole and the second through hole, this
Time pressure-oil tank in pressure close third through-hole, pressure-oil tank more than the pressure of low-pressure reservoir, isolation plunger tip
Interior hydraulic oil is by pressure regulation reversal valve input hydraulic pressure device.Multiple are offered on the sidewall of pressure-oil tank
Every the high pressure oil outlet arranged, the sidewall of low-pressure reservoir offers multiple spaced low pressure oil and feeds back hole,
Being additionally provided with multiple pressure regulation reversal valve, the high input voltage mouth of pipe of each pressure regulation reversal valve is connected with high pressure oil outlet
Logical, the High voltage output mouth of pipe is connected with hydraulic component, and decompression feeds back the mouth of pipe and is connected with low pressure oil feedback hole,
Each pressure regulation reversal valve corresponds to a hydraulic component, different according to the pressure that different hydraulic components need, motor
Order about spool to rotate in valve pocket housing, change first passage and second channel is defeated with the high pressure on valve pocket housing
Enter the mouth of pipe, the High voltage output mouth of pipe and decompression and feed back the relative position of the mouth of pipe, it is allowed to or stop hydraulic oil from height
In force feed case input hydraulic pressure device, hydraulic oil be back in low-pressure reservoir from hydraulic component, thus realize adopt
The hydraulic component action of the multiple difference in functionalitys of control that can be relatively independent with a hydraulic pump, reduces installation
Debugging, repair and maintenance difficulty simultaneously, also improve effectiveness, safety and use that long term device is run
Life-span.
Accompanying drawing explanation
Fig. 1 is the assembling schematic diagram of the central hydraulic pump in an embodiment；
Fig. 2 is the decomposing schematic representation of central hydraulic pump shown in Fig. 1；
Fig. 3 is the decomposing schematic representation of Fig. 2 mesohigh fuel tank, low-pressure reservoir and switch module；
Fig. 4 is the partial sectional view after Fig. 3 assembles；
Fig. 5 is the assembling schematic diagram of Fig. 3 mesolow fuel tank and switch module；
Fig. 6 is the decomposing schematic representation of pressure regulation reversal valve in Fig. 1；
Fig. 7 is the structural representation sealing lid in Fig. 6；
Fig. 8 is the structural representation of spool in Fig. 6；
Fig. 9 is the structural representation of valve pocket housing in Fig. 6；
Figure 10 is the structural representation of hydraulic tube connecting assembly in Fig. 1；
Figure 11 is drive mechanism and the assembling schematic diagram of low-pressure reservoir in Fig. 1；
Figure 12 is the decomposing schematic representation of Figure 11；
Figure 13 is the structural representation of closing cap in Figure 11；
Figure 14 is the decomposing schematic representation of Figure 11 mesolow fuel tank and piston rod part；
Figure 15 is the structural representation that in Figure 14, piston drives rotating disk；
Figure 16 is the structural representation of piston in Figure 14.
Detailed description of the invention
Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, the most right
The detailed description of the invention of the present invention is described in detail.Elaborate in the following description a lot of detail with
It is easy to fully understand the present invention.But the present invention can come real to be a lot different from alternate manner described here
Executing, those skilled in the art can do similar improvement in the case of intension of the present invention, therefore this
Bright do not limited by following public being embodied as.
It should be noted that when element is referred to as " being fixed on " another element, and it can be directly at another
On individual element or element placed in the middle can also be there is.When an element is considered as " connection " another yuan
Part, it can be directly to another element or may be simultaneously present centering elements.Used herein
Term " vertical ", " level ", "left", "right" and similar statement simply to illustrate that mesh
, being not offered as is unique embodiment.
Unless otherwise defined, all of technology used herein and scientific terminology and the technology belonging to the present invention
The implication that the technical staff in field is generally understood that is identical.The art used the most in the description of the invention
Language is intended merely to describe the purpose of specific embodiment, it is not intended that in limiting the present invention.Used herein
Term " and/or " include the arbitrary and all of combination of one or more relevant Listed Items.
Refer to Fig. 1 and Fig. 2, be the central hydraulic pump 10 in an embodiment, a central liquid can be realized
Control multiple hydraulic component (not shown) that press pump 10 is relatively independent.This central hydraulic pump 10 includes supporting seat
110, pressure-oil tank 200, low-pressure reservoir 300, switch module 400, multiple pressure regulation reversal valve 500, hydraulic pressure
Pipe connecting assembly 600 and drive mechanism 700.
Support seat 110 and be substantially round in shape structure, support seat 110 and be mainly used in supporting and fixation.High
Force feed case 200 and pressure regulation reversal valve 500 are arranged on support seat 110.Specifically, seat 110 can supported
Middle part offer accepting groove (figure do not mark), pressure-oil tank 200 and pressure regulation reversal valve 500 are arranged at accepting groove (figure
Do not mark) in.Support and be further opened with on seat 110 positioning hole 111, be arranged in hole 111, location by external fastening
In central hydraulic pump 10 is fixed on external object (such as chassis).External fastening can be screw
Or the securing members such as bolt, such as hex screw.
Specific in present embodiment, also include that cover cap 120, cover cap 120 cover on support seat 110, cover
Lid 120 is collectively forming a receiving space 130 with supporting seat 110.Pressure-oil tank 200, low-pressure reservoir 300,
Switch module 400, multiple pressure regulation reversal valve 500 and drive mechanism 700 are all contained in this receiving space 130.
Being provided with projection 121 on the end face of cover cap 120, the edge surface supporting seat 110 offers and projection 121 phase
The hole 112 of coupling, firmly to cover at cover cap 120 on support seat 110.
Seeing also Fig. 3 and Fig. 4, pressure-oil tank 200 is arranged on support seat 110.Pressure-oil tank 200
Being a stamping forming structure of entirety, higher pressure can be born in inside.The sidewall of pressure-oil tank 200
On offer multiple spaced high pressure oil outlet 210, the hydraulic oil in pressure-oil tank 200 is fuel-displaced by high pressure
Hole 210 exports.The top of pressure-oil tank 200 is further opened with the first through hole 220, and the first through hole 220 is for low pressure
One end of fuel tank 300 is inserted, and is additionally provided with female thread in the first through hole 220.The outer surface of pressure-oil tank 200
On be additionally provided with multiple heat radiation groove 230, multiple heat radiation grooves 230 interval is arranged.The heat radiation groove arranged
230 can increase area of dissipation, improve the radiating efficiency of pressure-oil tank 200.Specifically, each high pressure is fuel-displaced
Dispelling the heat between groove 230 at adjacent two in hole 210, pressure-oil tank 200 offers high pressure oil outlet 210
Outer surface 240 be plane, to be identical with hydraulic tube connecting assembly 600.
Seeing also Fig. 5, low-pressure reservoir 300 is substantially in tubular structure.The medial wall of low-pressure reservoir 300
Material can be steel, has wear-resisting characteristic, naturally it is also possible to has the material of wear-resisting property for other.Low
The enclosure material of force feed case 300 can be aluminium alloy, to facilitate low-pressure reservoir 300 to dispel the heat.Low-pressure reservoir 300
Having the first end 310 and the second end 320, the first end 310 is inserted in pressure-oil tank by the first through hole 220
In 200.The sidewall of the first end 310 that low-pressure reservoir 300 is inserted in pressure-oil tank 200 is provided with external screw thread,
External screw thread is screwed with the female thread of setting in the first through hole 220 of pressure-oil tank 200, it is achieved pressure-oil tank
200 are screwed with low-pressure reservoir 300, and assembling is simple and low-pressure reservoir 300 is difficult to from pressure-oil tank 200 de-
From.The end of the first end 310 offers the second through hole 311, and the hydraulic oil in low-pressure reservoir 300 passes through second
Through hole 311 enters in pressure-oil tank 200.Dividing plate 330,330, dividing plate it is additionally provided with in low-pressure reservoir 300
Between the first end 310 and the second end 320, dividing plate 330 offers third through-hole (figure is not marked), by opening
Close assembly 400 and control the closure or openness of third through-hole.
Specific in present embodiment, the sidewall of low-pressure reservoir 300 offers low pressure oil and feeds back hole 340.Low
It is multiple that force feed feeds back the quantity in hole 340, and what multiple low pressure oil feedback hole 340 was spaced is distributed in sidewall.Low
Force feed case 300 offers low pressure oil and feeds back the outer surface 350 in hole 340 is plane, to plug into group with hydraulic tube
Part 600 is identical.Specifically, it is also possible to connect hydraulic tube connecting assembly 600 by feeding back conduit 360
And low pressure oil feeds back hole 340, feed back one end and the low pressure oil of conduit 360 and feed back hole 340 and connect, the other end and
Hydraulic tube connecting assembly 600 connects.
Specific in present embodiment, it is cone that low-pressure reservoir 300 inserts the first end 310 of pressure-oil tank 200
Shape structure, is formed and is similar to funnel shaped, is conducive to the hydraulic oil in guiding low-pressure reservoir 300 smooth and equal
Enter pressure-oil tank 200 evenly.Ledge structure 370, step it is also formed with on the outer surface of low-pressure reservoir 300
Structure 370 abuts with the top of pressure-oil tank 200, prevents low-pressure reservoir 300 to be entirely insertable pressure-oil tank 200.
Seeing also Figure 13, the end of the second end 320 of low-pressure reservoir 300 is additionally provided with closing cap 380,
Closing cap 380 is for forming a collecting chamber (not shown) with low-pressure reservoir 300.Specifically, Ke Yi
Offer screwed hole (not shown) on closing cap 380, open in the end of the second end 320 of low-pressure reservoir 300
If screwed hole 321, then by trip bolt 390, closing cap 380 is covered on the of low-pressure reservoir 300
Two ends 320.The first semicircle axis hole 381, the end of the second end 320 it is further opened with on the end face of closing cap 380
Portion is further opened with the second semicircle axis hole 322, and the first semicircle axis hole 381 matches with the second semicircle axis hole 322 shape
Become circular shaft hole.Specifically, it is also possible to arrange scattered on the lateral wall of closing cap 380 and low-pressure reservoir 300
Hot groove (figure is not marked), with increasing heat radiation area, improves radiating efficiency.
Seeing also Fig. 5, switch module 400 includes the isolation plunger tip 420 of elastic setting, isolates plunger tip 420
Third through-hole can be turned on and off.Specifically, switch module 400 includes coil tension spring 410, isolation plunger tip
420 and location volution 430.One end of coil tension spring 410 be arranged at low-pressure reservoir 300 the first end 310 and
It is positioned on the hole wall of the second through hole 311.Specifically, coil tension spring 410 can be fixedly installed on the second through hole
On the hole wall of 311.Such as, the hole wall of the second through hole 311 of low-pressure reservoir 300 extends in hole, and it is fixed to be formed
Position bulge loop, coil tension spring 410 is fixedly installed on positioning convex ring.Location volution 430 is arranged at third through-hole
On the hole wall of (figure do not mark), the effect of location volution 430 be terminate isolation plunger tip 420 upward stroke and
Locking isolation plunger tip 420.Certainly, in other embodiments, it is also possible to omit location volution 430.
Isolation plunger tip 420 is arranged at the other end of coil tension spring 410 and can be turned on and off third through-hole (figure
Do not mark).When oil in low-pressure reservoir 300 is pressed into pressure-oil tank 200, isolation plunger tip 420 is produced by hydraulic oil
Raw contention effect, isolation plunger tip 420 forces coil tension spring 410 to be compressed, third through-hole (figure is not marked) quilt
Opening, hydraulic oil enters pressure-oil tank via third through-hole and the second through hole 311 from low-pressure reservoir 300 successively
In 200.After in hydraulic oil is completely into pressure-oil tank 200, static pressure in pressure-oil tank 200 powerful in
Static pressure in low-pressure reservoir 300, isolation plunger tip 420 is in coil tension spring 410 and pressure-oil tank 200
Hydraulic oil common active force under, recover close third through-hole, the hydraulic oil within pressure-oil tank 200 without
Method flows back in low-pressure reservoir 300.
Seeing also Fig. 6 to Fig. 9, multiple pressure regulation reversal valves 500 are arranged at intervals on support seat 110.Tool
Body ground, each pressure regulation reversal valve 500 includes motor 510, seals lid 520, spool 530 and valve pocket housing 540.
Motor 510 is high precisely servomotor, and motor 510 actuatable valve core 530 rotates in valve pocket housing 540.
Seal lid 520 to be covered on valve pocket housing 540, seal lid 520 and form a confined air with valve pocket housing 540
Between, spool 530 is contained in this confined space.Specifically, seal lid 520 to be covered by fastening screw 550
It is located on valve pocket housing 540.For example, it is possible to offer screwed hole 521, at valve pocket housing sealing on lid 520
Offering screwed hole 541 on 540, being then arranged in successively by fastening screw 550 in two screwed holes can be by close
Capping 520 is covered on valve pocket housing 540.
Specifically, it is also possible to ladder 542 is set on valve pocket housing 540, lid 520 is sealed in the face of valve pocket housing
The one side of 540 arranges boss 523, and boss 523 abuts against with ladder 542, to prevent sealing lid 520 excessive
Stretch in valve pocket housing 540.Offer draw-in groove 543 on the sidewall of ladder 542, the sidewall of boss 523 sets
Being equipped with buckle 524, buckle 524 snaps in draw-in groove 543.Draw-in groove 543 includes guiding groove 5431 and lock slots
5432, guiding groove 5431 and the angled setting of lock slots 5432, such as present embodiment is arranged for right angle.
It is, of course, also possible to setting at an acute angle, prevent buckle 524 from deviating from easily clasping buckle 524.Buckle 524
Enter in lock slots 5432 via guiding groove 5431 so that boss 523 is locked.
Offering the first passage 531 and second channel 532 being interconnected on the sidewall of spool 530, first leads to
Road 531 and second channel 532 pass through for hydraulic oil, first passage 531 and the L-shaped knot of second channel 532
Structure.Locating slot 533, locating slot 533 and first passage 531 and second it is further opened with on the sidewall of spool 530
Passage 532 interval is arranged, i.e. locating slot 533 is not connect with first passage 531 and the second through hole.
The location plunger tip 536 of elastic setting is contained in locating slot 533.Specifically, contain locating ring 534, determine
Position spring 535 and location plunger tip 536, the two ends of location spring 535 are connected to position plunger tip 536 with fixed
On the ring 534 of position, locating ring 534 is fixedly installed on the bottom of locating slot 533.Certainly, other embodiment party
In formula, it is also possible to omit locating ring 534, directly location spring 535 is arranged at the bottom of locating slot 533.
Locating slot 533 on spool 530 is unidirectional closed circuit, even if so location spring 535 is not enough to compress location
Plunger tip 536, also cannot flow after hydraulic oil arrival is closed circuit again.
Be arranged at intervals with on the sidewall of valve pocket housing 540 the high input voltage mouth of pipe 544, the High voltage output mouth of pipe 545 and
Decompression feeds back the mouth of pipe 546.The high input voltage mouth of pipe 544 is connected with high pressure oil outlet 210, such as can be direct
It is connected with high pressure oil outlet 210.The High voltage output mouth of pipe 545, for being connected with hydraulic component, such as may be used
To be connected with hydraulic component by hydraulic tube connecting assembly 600.Decompression feeds back the mouth of pipe 546 and returns with low pressure oil
Defeated hole 340 is connected.Such as can feed back hole 340 by hydraulic tube connecting assembly 600 with low pressure oil to be connected
Logical.Being further opened with stroke draw-in groove 547 on the medial wall of valve pocket housing 540, location plunger tip 536 cocker enters stroke
In draw-in groove 547.
When central authorities' hydraulic pump 10 is in running order, hydraulic oil is pressed into pressure-oil tank from low-pressure reservoir 300
In 200, and then enter pressure regulation from the high pressure oil outlet 210 of pressure-oil tank 200 via the high input voltage mouth of pipe 544
Reversal valve 500, then by the High voltage output mouth of pipe 545 input hydraulic pressure device.When having on a certain hydraulic component link
Sensor when returning beyond bound numerical value, motor 510 drives the pressure regulation that is connected with this hydraulic component to change
Rotate to the spool 530 of valve 500, so that spool 530 is defeated relative to the adjustment high input voltage mouth of pipe 544, high pressure
Outlet spout 545 or the position of the decompression feedback mouth of pipe 546, and then adjust the flow direction of hydraulic oil, and other hydraulic pressure
Pressure regulation reversal valve 500 in device link is unaffected.
Such as, when the sensor feedback of the hydraulic component on a certain link needs pressurization, then motor 510 orders about
The spool 530 of the pressure regulation reversal valve 500 being connected with this hydraulic component rotates, and makes the first passage of spool 530
531 dock with the high input voltage mouth of pipe 544 of valve pocket housing 540, second channel 532 and the High voltage output mouth of pipe
545 docking so that hydraulic oil constantly from pressure-oil tank 200 via the high input voltage mouth of pipe 544, second
Passage 532, first passage 531 and the High voltage output mouth of pipe 545 enter in hydraulic component.Now, decompression feeds back
The mouth of pipe 546 is positioned plunger tip 536 and closes in closed mode.
When the sensor feedback of the hydraulic component on a certain link needs decompression, then motor 510 orders about this pressure regulation
The spool 530 of reversal valve 500 rotates, and makes the second channel 532 of spool 530 and the height of valve pocket housing 540
The pressure output mouth of pipe 545 docks, and first passage 531 feeds back the mouth of pipe 546 with decompression and docks, and hydraulic oil is in low pressure
Under the effect of fuel tank 300, via the High voltage output mouth of pipe 545, second channel 532, first from hydraulic component
Passage 531 and the decompression feedback mouth of pipe 546 are again pressed into pressure-oil tank 200 after being inhaled into low-pressure reservoir 300 and make
Sub-distribution again.Now, location plunger tip 536 in the stroke draw-in groove 547 of valve pocket housing 540, high input voltage
The mouth of pipe 544 is closed by the lateral wall of spool 530, and locking is in closed mode.
When locomotive needs to berth static, motor 510 spool 530 can be rotated to make the high input voltage mouth of pipe 544,
The High voltage output mouth of pipe 545 and decompression feed back the mouth of pipe 546 and are the state of closing.Such as, location plunger tip 536
Dock with the High voltage output mouth of pipe 545, to stop hydraulic oil to enter in hydraulic component.First passage 531 with subtract
Pushing back the defeated mouth of pipe 546 to dock, second channel 532 docks with stroke draw-in groove 547.The High voltage output mouth of pipe 545
Dock with the solid side walls of spool 530.
In actual application, the numerical signal that can transmit according to the sensor on the link of hydraulic component, control electricity
The reaction action of Millisecond made by machine, thus regulates spool 530 and rotate in valve pocket housing 540, reaches nothing
Level speed governing, the purpose regulating, being switched on or off, control flow and the direction of every road hydraulic oil accurately.
See also Figure 10, also include multiple hydraulic tube connecting assembly 600, hydraulic tube connecting assembly 600
May be used for connecting the High voltage output mouth of pipe 545 of each pressure regulation reversal valve 500 and each hydraulic component, for
The low pressure oil of connection low-pressure reservoir 300 feed back the decompression of hole 340 and pressure regulation reversal valve 500 feed back the mouth of pipe 546,
It is of course also possible to be used for connecting high pressure oil outlet 210 and the high input voltage mouth of pipe 544.
Each hydraulic tube connecting assembly 600 includes that bent sub 610, nut 620, center tap 630 and emptying add
Liquid screw 640.Bent sub 610 is substantially of an L-shaped structure, and the two ends of bent sub 610 are provided with nut 620.
Nut 620 is embedded moving fastening, and knot that can be undone by a pull is in the two ends of bent sub 610, and can do 360 ° of rotations, uses
In screwing the linking parts such as center tap 630 and hydraulic pipe.Emptying adds liquid screw 640 and is arranged at bent sub 610
Crook, angle, for overhauling hydraulic tube connecting assembly 600, carrying out air emptying, annex solution force feed etc.
Maintenance measure, it is ensured that hydraulic component properly functioning.
Above-mentioned pressure-oil tank 200, low-pressure reservoir 300, switch module 400 and pressure regulation reversal valve 500 can be with shapes
Become hydraulic oil blood circulation.Hydraulic oil blood circulation can also include hydraulic tube connecting assembly 600.Hydraulic oil follows
Loop systems makes the hydraulic oil of each road hydraulic component feed back the mouth of pipe 546 through decompression and is back to low-pressure reservoir 300
In, then circulation continuation distribution made by the unified pressure-oil tank 200 of press-in again, it is achieved a hydraulic oil cyclic system
System can corresponding multiple hydraulic components being positioned on different link, not only contribute to optimized Structure Design, also carry
The high integrated level of hydraulic oil blood circulation.
Seeing also Figure 11 to Figure 16, drive mechanism 700 predominantly central hydraulic pump 10 provides power,
Order about piston 740 to reciprocatingly move along low-pressure reservoir 300, thus by the hydraulic oil in low-pressure reservoir 300
In press-in pressure-oil tank 200.Drive mechanism 700 includes power source, transmission component 720, piston rod part
730 and piston 740.Specific in present embodiment, power source can be unidirectional drive motor 710, unidirectional
Drive motor 710 under regulated power supply, low turn of high pulling torque, constant speed rotary can be made.Unidirectional drive motor 710
Motor shaft 711 can be hex-shaped shaft, unidirectional drive motor 710 drives hex-shaped shaft to make one-directional rotation.
Specifically, drive mechanism 700 orders about piston 740 by transmission component 720 and piston rod part 730
Reciprocatingly move along low-pressure reservoir 300.Transmission component 720 includes first screw rod the 721, first travelling gear
722, the second screw rod 723 and the second travelling gear 724.First screw rod 721 is sheathed on unidirectional drive motor 710
Motor shaft 711 on, the first screw rod 721 is the screw rod supporting with motor shaft 711.First screw rod 721 is
Cored screw, cored screw is sheathed on motor shaft 711.Specifically, it is also possible at the first screw rod 721
End arranges set screw 7211, to be firmly sheathed on motor shaft 711 by the first screw rod 721.First
Travelling gear 722 is meshed with the first screw rod 721, and the first travelling gear 722 is sheathed on the second screw rod 723
On, so that the first travelling gear 722 rotates coaxially with the second screw rod 723, the second travelling gear 724 and
Two screw rods 723 are meshed, and form two-stage gear/screw rod linkage structure.
Owing to drive mechanism 700 uses two-stage gear/screw rod linkage structure, and power source is unidirectional drive electricity
Machine 710, so in any case, whole drive mechanism 700, all in irreversible state, effectively prevent
Cause recoil because internal pressure is too high, cause component of machine to drive in the wrong direction the danger causing other interconnected systems to collapse.
Specifically, it is also possible to arrange positioning screw cap 7221, to prevent the first travelling gear 722 from the second screw rod 723
On come off.
Specifically, it is also possible to arrange fixed support 725, fixed support 725 is used for supporting power source, the first spiral shell
The parts such as bar the 721, second screw rod 723.Fixed support 725 has two half supports 7251 cooperated,
Every half support 7251 all has circular arc side 7252, matches in two circular arc sides 7252, makes solid
Fixed rack 725 is fastened on the lateral wall of low-pressure reservoir 300.By offering on half support 7251 wherein
Screwed hole 7253, utilizes threaded fastener 7254 to be arranged in screwed hole 7253, with by unidirectional drive motor
710 are arranged on fixed support 725.Second screw rod 723 is arranged on fixed support 725, and at the second spiral shell
The end of bar 723 is threaded set 7231 respectively, so that the second screw rod 723 is firmly arranged in fixed support
On 725.
Piston rod part 730 includes that piston drives rotating disk 731, piston rod 732 and connecting rod base 733.
Piston drives the quantity of rotating disk 731 to be two, and two pistons drive between rotating disk 731 by rotating disk pin 7311
Connect.Each piston drives and offers multiple through hole on rotating disk 731, and rotating disk pin 7311 is disposed therein two
To connect two pistons driving rotating disks 731 in relative through hole.Each piston drives to also set up on rotating disk 731 and turns
Dish axle 7312, turntable shaft 7312 stretches out in low-pressure reservoir 300.Specifically, turntable shaft 7312 passes through low pressure
The second semicircle axis hole 322 on fuel tank 300 and the first semicircle axis hole 381 on closing cap 380 are formed
Circular shaft hole stretches out in low-pressure reservoir 300.Second travelling gear 724 is sheathed on turntable shaft 7312 and stretches out in low pressure
One end of fuel tank 300.
One end of piston rod 732 is arranged on rotating disk pin 7311, and the other end is connected with piston 740.Connecting rod
Base 733 is arranged on piston 740.Specific in present embodiment, the other end of piston rod 732 leads to
Cross connecting rod base 733 to be connected with piston 740.One end of piston rod 732 offers through hole, rotating disk pin 7311
It is arranged in through hole, so that piston rod 732 drives the rotation of rotating disk 731 to move with piston.Piston is even
The other end of bar 732 offers through hole, connecting rod base 733 is formed with the lug at two intervals, at lug
On offer through hole, be then arranged in piston successively by connecting-rod bolts (male) and connecting-rod bolts (female)
Match after through hole on the through hole of connecting rod and lug, can be by piston rod 732 and connecting rod base 733 phase
Connect.
The bottom of piston 740 is formed with poly-pressure pelvic cavity 741, and the hydraulic oil in low-pressure reservoir 300 is at poly-pressure pelvic cavity
The effect lower compression isolation plunger tip 420 of 741.The bottom terminal ends of piston 740 is further opened with drain recess 742,
When piston 740 moves upward in low-pressure reservoir 300, a vacuum can be formed in low-pressure reservoir 300 low
Nip, decompression feeds back the hydraulic oil of the mouth of pipe 546 and is attracted by vacuum low-pressure district from the drain recess 742 of piston
Enter in low-pressure reservoir 300.Specifically, the quantity of drain recess 742 can be multiple, and multiple drains are recessed
The bottom terminal ends being distributed in piston 740 at mouth 742 interval.The diameter of drain recess 742 can be equal to low pressure
Oil feeds back the diameter in hole 340, so that piston 740 just moves to low-pressure reservoir 300 upward stroke terminal surface
Time, hydraulic oil just enters in low-pressure reservoir 300 from drain recess 742.
When piston 740 moves downward, drain recess 742 is cut from the medial wall of low-pressure reservoir 300 is perpendicular
Face incision, during now hydraulic oil cannot be back to the decompression feedback mouth of pipe 546.Poly-pressure pelvic cavity in piston base
Under 740 centripetal force effects, equably hydraulic oil is advanced downwardly.Owing to unidirectional drive motor 710 drives piston
The moment produced after 740, more than the pressure within low-pressure reservoir 300 inside and pressure-oil tank 200, makes hydraulic pressure
It is backward indent that oil forces isolation plunger tip 420 to oppress coil tension spring 410 by force, makes hydraulic oil be able to from threeway
Hole enters in pressure-oil tank 200 via the second through hole 311.
Cannelure 743 it is further opened with on the sidewall of piston 740.The quantity of cannelure 743 is multiple, Duo Gehuan
Shape groove 743 is arranged along the axially spaced-apart of piston 740.The purpose arranging cannelure 743 is for sheathed sealing
Ring, sealing ring is for ensureing sealing between piston 740 and low-pressure reservoir 300.The top of piston 740
Being further opened with escape groove 744, piston drives rotating disk 731, piston rod 732 and connecting rod base 733 all to house
In escape groove 744.When piston drives rotating disk 731 to drive piston rod 732 to move along a curved path, piston
740 make linear reciprocal movement under the effect of piston rod 732.Piston 740 moves to low-pressure reservoir 300
During upper end (the i.e. second end), the escape groove 744 on the top of piston 740 can allow piston to drive rotating disk 731
By thus proceed next do action.
Above-mentioned central hydraulic pump 10 at least has the advantage that
Unidirectional drive motor 710 orders about piston 740 and moves up, and the hydraulic oil in hydraulic component passes through pressure regulation
Reversal valve 500 is back in low-pressure reservoir 300；Unidirectional drive motor 710 orders about piston 740 and moves down,
Hydraulic oil in low-pressure reservoir 300 forces isolation plunger tip 420 to compress coil tension spring 410, in low-pressure reservoir 300
Hydraulic oil enter in pressure-oil tank 200 by third through-hole and the second through hole 311, now pressure-oil tank 200
Interior pressure closes third through-hole, pressure-oil tank 200 more than the pressure of low-pressure reservoir 300, isolation plunger tip 420
Interior hydraulic oil is by pressure regulation reversal valve 500 input hydraulic pressure device.Offer on the sidewall of pressure-oil tank 200
There is multiple spaced high pressure oil outlet 210, the sidewall of low-pressure reservoir 300 offers multiple interval and arranges
Low pressure oil feed back hole 340, be additionally provided with multiple pressure regulation reversal valve 500, the height of each pressure regulation reversal valve 500
The pressure input mouth of pipe 544 is connected with high pressure oil outlet 210, and the High voltage output mouth of pipe 545 is connected with hydraulic component
Logical, decompression feeds back the mouth of pipe 546 and is connected with low pressure oil feedback hole 340, and each pressure regulation reversal valve 500 is corresponding
In a hydraulic component, different according to the pressure that different hydraulic components need, motor orders about spool 530 at valve pocket
Rotate in housing 540, change first passage 531 and second channel 532 and the high pressure on valve pocket housing 540
The input mouth of pipe 544, the High voltage output mouth of pipe 545 and decompression feed back the relative position of the mouth of pipe 546, it is allowed to or resistance
Only hydraulic oil from pressure-oil tank 200 input hydraulic pressure device, hydraulic oil from hydraulic component, be back to low pressure oil
In case 300, thus realize using a central hydraulic pump 10 to get final product the relatively independent multiple difference in functionality of control
Hydraulic component action, reduce installation and debugging, repair and maintenance difficulty simultaneously, also improve long term device
Effectiveness, safety and the service life run.
Specific in present embodiment, this central hydraulic pump 10 can be applicable in digital locomotive, central hydraulic pump
Offer 12 low pressure oil in the low-pressure reservoir 300 of 10 altogether and feed back hole 340, pressure-oil tank 200 is offered 12 altogether
Individual high pressure oil outlet 210, arranges 12 pressure regulation reversal valves 500, to form 12 single channel, is grouped control respectively
Make 16 separate hydraulic components.
Wherein the 1st～8 tunnels are single channel single control, control 8 hydraulic pressure of diverse location in suspension for independent
Device.9th tunnel is single channel group control, for controlling the synchronous operation of 2 hydraulic components of locomotive hatch door, presses
Car door need to be carried out opening/closing, the function such as angular adjustment.10th tunnel is single channel group control, is used for controlling driver's seat safety
2 hydraulic component synchronous operations on protection hurdle, carry out the pressure function of safety protection to driver.
11st tunnel is single channel group control, for controlling the synchronous operation of 2 hydraulic components of locomotive brake, except
Various energy regenerating implement that the deceleration do not caned is the most on-demand carries out brake hard brake function.12nd tunnel is single
Road group control, for controlling the synchronous operation that 2 hydraulic components of thick stick are protected in headstock front end, carries out locomotive entering angle
Automatic control changeable.Certainly, in practical operation, can be different with functional requirement according to vehicle, increasing adds deduct
Few single channel is arranged, to reduce car load power consumption and to save parts cost.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed,
But therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for this area
Those of ordinary skill for, without departing from the inventive concept of the premise, it is also possible to make some deformation and
Improving, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended
Claim is as the criterion.
Claims (10)
1. a central hydraulic pump, it is characterised in that including:
Support seat；
Pressure-oil tank, is arranged on described support seat, the sidewall of described pressure-oil tank offers multiple interval
The high pressure oil outlet arranged, the top of described pressure-oil tank offers the first through hole；
Low-pressure reservoir, has the first end and the second end, and described first end is inserted in institute by described first through hole
Stating in pressure-oil tank, the end of described first end offers the second through hole, is additionally provided with in described low-pressure reservoir
Dividing plate, described dividing plate, between described first end and described second end, described dividing plate offers threeway
Hole, the sidewall of described low-pressure reservoir offers multiple spaced low pressure oil and feeds back hole；
Switch module, including the elastic isolation plunger tip arranged, described isolation plunger tip can be turned on and off described
Third through-hole；
Multiple pressure regulation reversal valves, are arranged at intervals on described support seat, each pressure regulation reversal valve include motor,
Spool and valve pocket housing, described motor can drive described spool to rotate in described valve pocket housing, described spool
Sidewall on offer the first passage and second channel being interconnected, the sidewall of described spool is further opened with
Locating slot, described locating slot and described first passage and described second channel interval are arranged, in described locating slot
Contain the location plunger tip of elastic setting, the sidewall of described valve pocket housing is arranged at intervals with the high input voltage mouth of pipe,
The High voltage output mouth of pipe and decompression feed back the mouth of pipe, and the described high input voltage mouth of pipe is connected with described high pressure oil outlet,
The described High voltage output mouth of pipe is for being connected with hydraulic component, and described decompression feeds back the mouth of pipe and returns with described low pressure oil
Defeated hole is connected；And
Drive mechanism, including power source and piston, described power source orders about described piston in described low-pressure reservoir
Inside reciprocatingly move, make the hydraulic oil in described low-pressure reservoir oppress described isolation plunger tip thus open threeway
Hole, hydraulic oil is pressed into described height via described third through-hole and described second through hole successively from described low-pressure reservoir
In force feed case.
Central hydraulic pump the most according to claim 1, it is characterised in that also include cover cap, described cover
Housing is located on described support seat, and described cover cap and described support seat are collectively forming a receiving space.
Central hydraulic pump the most according to claim 1, it is characterised in that the appearance of described pressure-oil tank
Being provided with multiple heat radiation groove on face, the plurality of heat radiation groove interval is arranged.
Central hydraulic pump the most according to claim 3, it is characterised in that each high pressure oil outlet is positioned at
Between adjacent two heat radiation grooves, it is plane that described pressure-oil tank offers the outer surface of high pressure oil outlet.
Central hydraulic pump the most according to claim 1, it is characterised in that described low-pressure reservoir offers
It is plane that low pressure oil feeds back the outer surface in hole.
Central hydraulic pump the most according to claim 1, it is characterised in that described pressure regulation reversal valve also wraps
Include sealing lid, described valve pocket housing is additionally provided with ladder, described sealing capping to described valve pocket housing one
Face is provided with boss, and described boss abuts against with described ladder.
Central hydraulic pump the most according to claim 6, it is characterised in that open on the sidewall of described ladder
Being provided with draw-in groove, the sidewall of described boss is provided with buckle, described buckle snaps in described draw-in groove.
Central hydraulic pump the most according to claim 1, it is characterised in that also include that multiple hydraulic tube connects
Refute assembly, connect the described High voltage output mouth of pipe and hydraulic component by described hydraulic tube connecting assembly, connect institute
Stating decompression and feed back the mouth of pipe and described low pressure oil feedback hole, each hydraulic tube connecting assembly includes bent sub and nut,
Described nut is arranged at the two ends of described bent sub.
Central hydraulic pump the most according to claim 1, it is characterised in that described power source is unidirectional driving
Galvanic electricity machine, described drive mechanism also includes that transmission component, described transmission component include the first screw rod, the first biography
Moving gear, the second screw rod and the second travelling gear, described first screw sleeve is located at described unidirectional drive motor
On motor shaft, described first travelling gear is meshed with described first screw rod, and described first travelling gear is sheathed
On described second screw rod, so that described first travelling gear rotates with described second screw coaxial, described the
Two travelling gears are meshed with described second screw rod.
Central hydraulic pump the most according to claim 9, it is characterised in that also include piston connecting rod unit
Part, described piston rod part includes that piston drives rotating disk and piston rod, and described piston drives the number of rotating disk
Amount is two, and two described pistons are driven and connected by rotating disk pin between rotating disk, and described piston drives on rotating disk
Being additionally provided with turntable shaft, described turntable shaft stretches out in described low-pressure reservoir, and described second travelling gear is sheathed on
On described turntable shaft, one end of described piston rod is arranged on described rotating disk pin, the other end and described piston
It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410831662.3A CN104533746B (en) | 2014-12-26 | 2014-12-26 | Central hydraulic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410831662.3A CN104533746B (en) | 2014-12-26 | 2014-12-26 | Central hydraulic pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104533746A CN104533746A (en) | 2015-04-22 |
| CN104533746B true CN104533746B (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410831662.3A Expired - Fee Related CN104533746B (en) | 2014-12-26 | 2014-12-26 | Central hydraulic pump |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE881577R (en) * | 1980-02-06 | 1980-05-30 | Envirowal A S B L | DEVICE FOR CONTROLLING THERMAL POLLUTION OF RIVERS, BODIES OF WATER AND THE LIKE |
| CN1499085A (en) * | 2002-11-07 | 2004-05-26 | KSB���Ϲɷݹ�˾ | Controller of integrated electric hydraulic brake |
| CN1975164A (en) * | 2005-11-02 | 2007-06-06 | 通用汽车环球科技运作公司 | Dual pump assembly |
| CN101324279A (en) * | 2008-07-28 | 2008-12-17 | 中国人民解放军国防科学技术大学 | Rotary type fluid-distributing valve |
| CN103518092A (en) * | 2011-05-05 | 2014-01-15 | 沃特世科技公司 | High pressure fluidic switching valve having variable pressure loading |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7549436B2 (en) * | 2001-07-27 | 2009-06-23 | Arichell Technologies | System and method for converting manually operated flush valves |
-
2014
- 2014-12-26 CN CN201410831662.3A patent/CN104533746B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE881577R (en) * | 1980-02-06 | 1980-05-30 | Envirowal A S B L | DEVICE FOR CONTROLLING THERMAL POLLUTION OF RIVERS, BODIES OF WATER AND THE LIKE |
| CN1499085A (en) * | 2002-11-07 | 2004-05-26 | KSB���Ϲɷݹ�˾ | Controller of integrated electric hydraulic brake |
| CN1975164A (en) * | 2005-11-02 | 2007-06-06 | 通用汽车环球科技运作公司 | Dual pump assembly |
| CN101324279A (en) * | 2008-07-28 | 2008-12-17 | 中国人民解放军国防科学技术大学 | Rotary type fluid-distributing valve |
| CN103518092A (en) * | 2011-05-05 | 2014-01-15 | 沃特世科技公司 | High pressure fluidic switching valve having variable pressure loading |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104533746A (en) | 2015-04-22 |
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