CN107051832A - The transfer pump of liquid mulch application system - Google Patents
The transfer pump of liquid mulch application system Download PDFInfo
- Publication number
- CN107051832A CN107051832A CN201611048720.0A CN201611048720A CN107051832A CN 107051832 A CN107051832 A CN 107051832A CN 201611048720 A CN201611048720 A CN 201611048720A CN 107051832 A CN107051832 A CN 107051832A
- Authority
- CN
- China
- Prior art keywords
- roller
- piston
- transfer pump
- type groove
- cam type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 238000012546 transfer Methods 0.000 title claims abstract description 29
- 239000007788 liquid Substances 0.000 title claims abstract description 10
- 239000002362 mulch Substances 0.000 title claims abstract description 10
- 230000033001 locomotion Effects 0.000 claims abstract description 40
- 238000000034 method Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 2
- 230000005520 electrodynamics Effects 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000013519 translation Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
- F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/02—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having two cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/122—Details or component parts, e.g. valves, sealings or lubrication means
- F04B1/124—Pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/128—Driving means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
- F04B1/141—Details or component parts
- F04B1/146—Swash plates; Actuating elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
- F04B1/16—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders having two or more sets of cylinders or pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
- F04B11/005—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
- F04B11/005—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons
- F04B11/0058—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons with piston speed control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
- F04B11/005—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons
- F04B11/0058—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons with piston speed control
- F04B11/0066—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons with piston speed control with special shape of the actuating element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
- F04B53/144—Adaptation of piston-rods
- F04B53/146—Piston-rod guiding arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
- F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
- F04B9/042—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being cams
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
- F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
- F04B9/047—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being pin-and-slot mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The present invention relates to the transfer pump of liquid mulch application system.The transfer pump (1) includes the motor (3) and the roller (9) by the revolution being driven at least two pistons, the roller includes the outer cylinder (90) with cam type groove (92), the piston is individually fixed in the body of rod (51,61) on, roller (53 is further fixed on the body of rod, 63), roller is rolled along cam type groove (92), so that the piston being connected with roller does translational motion in the presence of roller (9) rotation along corresponding translated axis line (X5, X6).The contact position of cam type groove (92) and one of roller has deviation angle relative to the contact position of cam type groove and another roller, so that when a piston arrives at the reversal point in its direction of motion, another piston is kept in motion.The pump also includes compensation device (10), and the compensation device is used for when a piston arrives at the reversal point in its direction of motion, another piston is accelerated.
Description
Technical field
The present invention relates to a kind of transfer pump of liquid mulch application system.
Background technology
The transfer pump of the liquid mulch application systems such as paint is generally by electric or pneumatic, hydraulic pump and by described in
Motor is connected to the attachment means composition of the hydraulic pump.Electrodynamic pump refers to the transfer pump with electro-motor, and air driven pump refers to tool
There is the transfer pump of air motor.The reason for preferably using electrodynamic pump is that it has better performance and lower use cost,
But there is problem during the alternate linear that the rotary motion of the electro-motor of electrodynamic pump is converted to hydraulic pump is moved.
When the direction of motion of hydraulic pump is reverse, the movement velocity of its piston reaches zero, so as to cause to produce pressure drop at the pump discharge.
Therefore, used electrodynamic pump must be reversed compensation to such.
The single piston driven in known some pumps using connecting rod-crank system.In such pump, electro-motor is turned
Speed is controlled, to obtain constant flow.A kind of single piston of use rack drives is described in US2015/219819A
Pump.Wherein, by the different teeth of rack realize it is described reversely, with reduce its abrasion.These systems are not avoided that pump discharge
The pressure drop at place.
Using two pistons diametrically set, i.e. π (Pi) radian phase shift pump, the work in also a kind of known pump
Plug is moved in the presence of heart-shaped cam rotation, and the shape of the heart-shaped cam and corresponding mechanism are set to, and is lived described two
One in plug when occurring the reversing of motion, another piston is not fully located at the terminal of its stroke.However, because the system makes
It must treat that consecutive variations occur for the moment of torsion provided by motor, therefore still can not obtain the effect being entirely satisfactory.In addition, it is described
Know under heart-shaped cam design, the mechanism of the heart-shaped cam is set to only one device for being used to promote hydraulic pump piston.Therefore,
In order to realize the motion of piston in the opposite direction, also need to set gigback.
The content of the invention
It is an object of the invention to by proposing that a kind of transfer pump of new liquid mulch application system is above-mentioned to solve
Shortcoming, the transfer pump more efficiently can be reversed compensation to its piston.
In order to achieve this, the present invention relates to a kind of transfer pump of liquid mulch application system, the transfer pump includes
The motor that at least two pistons are driven.The transfer pump is additionally included in the rolling that rotational motion is carried out under the driving of the motor
Cylinder, the roller includes the outer cylinder with cam type groove；The piston is fixed on the body of rod, and rolling is further fixed on the body of rod
Wheel, the roller is dynamic along the cam type trough roller, so that the roller being connected through the body of rod with the piston is in rolling
In the presence of the rotational motion of cylinder translational motion is carried out along corresponding translated axis line；The cam type groove and the roller are wherein
The contact position of one has deviation angle relative to the contact position of the cam type groove and the other in which of the roller, from
And cause when the reversal point that one in the piston is arrived in its direction of motion, another in the piston is in translation
Motion state；The transfer pump also includes compensation device, and the compensation device is used to arrive at it as one in the piston
During reversal point in the direction of motion, the speed to another the translational motion in the piston accelerates.
According to the present invention, during a piston carries out the reversing of motion, pass through the speed of the translational motion to another piston
Degree is accelerated, and the effective compensation of pressure drop can be achieved.The pressure overall constant obtained at pump discharge.
According to the favourable optional aspect of the present invention, said pump may include with next feature, or any technically can be achieved
Multiple features combination：
- the compensation device includes accelerator, and its is reverse for the process that the accelerator is used in the piston
The rotating speed of the rotational motion of the roller is accelerated in preset duration before or after point：In this embodiment, exist
During the reversing of motion, motor rotary speed rises and torque is reduced, so that required motor power keeps constant；
- the accelerator is the control unit that driven control is carried out to the rotating speed of the motor；
- the compensation device also includes the pressure sensor for being arranged at the piston downstream, and the accelerator is used for root
The rotating speed of the rotational motion of the roller is lifted according to the pressure value measured by the pressure sensor；
- the compensation device is formed by two angular regions of the cam type groove, the angular regions relative to institute
Stating the vertical plane of rotation axis of roller has inclination angle, and the inclination angle is more than the remaining angular regions of the cam type groove
Inclination angle：In this embodiment, while compensation is realized, constant speed and motor torque can be kept；
The value at the inclination angle of the angular regions of the cam type groove of-formation compensation device is remaining for the cam type groove
Twice of the value at the inclination angle of angular regions；
- the transfer pump, which is included in, offsets from each other 90 ° of two pistons in angle；
- cam the type groove include in two helicla flutes, described two helicla flutes each extend the roller
The half of circumference, described two helicla flutes are symmetrical relative to by the plane of rotation axis；
Deviation angle between the-roller is 70 ° to 100 °；
Deviation angle between the-roller is 90 °.
Brief description of the drawings
By description below to transfer pump in accordance with the principles of the present invention, the present invention will be more readily understood, and its other it is excellent
Point will be apparent from.The transfer pump is only as non-limiting example, and it describes refer to the attached drawing.In accompanying drawing：
Fig. 1 is the stereogram of the pump according to first embodiment of the invention；
Fig. 2 is the enlarged drawing at details II in Fig. 1；
Fig. 3 is the top view of Fig. 1 and Fig. 2 pumps；
Fig. 4 is the sectional view along Fig. 3 IV-IV faces；
Fig. 5 is change curve of the rotating speed relative to the angle position of the motor of pump shown in Fig. 1 to Fig. 4；
Fig. 6 is the view similar with Fig. 4, and is the enlarged drawing of the pump according to second embodiment of the invention, wherein,
The roller and roller of the pump are only shown；And
Fig. 7 is the view similar with Fig. 1 of the pump according to third embodiment of the invention.
Embodiment
Fig. 1 to Fig. 4 show the confession of the liquid mulch application system (not shown) according to first embodiment of the invention
Answer pump.Pump 1 include with axis X-X ' electro-motor 3.
The motor is used to drive two pistons 5 and 6, and each piston is mounted in chamber 8, and can be along respective parallel
In axis X-X ' translated axis line X5 and X6 enter line slip.5 and 6 motion in chamber 8 of piston causes the pressurization such as paint
Liquid mulch is conveyed.
Motor 3 is by transmission system drives piston 5 and 6, and the transmission system includes roller 9, the roller by motor 3 drive around
Axis X-X ' rotation.The transmission of the rotation bending roller 9 of motor 3 may be either direct-drive, can also pass through gear reduction system
(not shown) is realized indirectly.
Roller 9 include by axis X-X ' centered on cylindrical outer surface 90.Outer surface 90 has cam type groove 92.It is living
Plug 5 and 6 is individually fixed in first body of rod 51 and second body of rod 61, and the first roller is further fixed on first body of rod and second body of rod
53 and second roller 63, roller 53 and 63 is rolled along cam type groove 92, so that respectively through the body of rod 51 and 61 and the roller 53
With 63 connection pistons 5 and 6 roller 9 rotation in the presence of along parallel to axis X-X ' translated axis line X5 and X6 do flat
Shifting movement.
In the illustrated embodiment, cam type groove 92 is formed by succeeding vat, and the succeeding vat includes two sections of helicla flutes 94 and 95, often
Section helicla flute extends the half of the periphery of roller 9, and with respect to roller axis X-X ' plane P1 it is symmetrical.Spiral
Groove 94 includes bottom cylindrical face 94a, upper spiral wall 94b and lower spiral wall 94c, and helicla flute 95 includes bottom cylindrical face 95a, upper spiral
Wall 95b and lower spiral wall 95c.Roller 53 and 63 along perpendicular to axis X-X ' contact line (not shown) optionally with
A side in upper spiral wall 94b and 95b and lower spiral wall 94c and 95c is in contact.
In Fig. 4, because of cutting planes IV-IV geometry, motor 3, roller 9 and roller 53 and 63 respectively occur two
It is secondary.
When roller 9 around axis X-X ' rotation when, connecing between spiral wall 94b, 95b, 94c, 95c and roller 53 and 63
Touch and cause the body of rod 51 and 61 to occur translational motion, the motion is transferred to after piston 5 and 6 so that it is alternately to the covering
Thing aspirate and its outlet through pump 1 is pressurizeed thereafter and discharges.
Piston 5 and 6 is respectively provided with corresponding with the reversal point in its direction of translatory motion top-dead-center and bottom stop.Each
In reverse procedure, the linear speed reduction of piston 5 and 6, then by speed zero point, so as to cause the pressure at pump discharge to be cut
It is disconnected.Therefore, when piston 5 and 6 one of them because reach its reversal point and speed slow down when, it is necessary to using another piston to this
Slowing down for speed is compensated.Therefore, according to the present invention, cam type groove 92 and the contact point of one of them position of roller 53 and 63
Putting between cam type groove 92 and another roller contact point position there is relative angle to offset, and the angle, which is offset, to work as piston
When one of them of 5 and 6 is in the reversal point in its direction of motion, another is kept in motion.Advantageously, as shown in figure 4,
The respective position of roller 53 and 63 make it that, when roller 53 reaches its top reversal point, roller 63 is just being approximately in it and transported upwards
Dynamic half-way.This can partly compensate the pressure drop caused by the reversing of motion of piston.
The deviation angle A of roller 53 and 63 is preferably between 70 ° and 100 °.Preferably, the skew of the roller 53 and 63
Angle A is 90 °.The angle A be also translated axis line X5 and X6 respectively with axis X-X ' angle between the plane that is formed.Should
Deviation angle can not be 180 °, because under this angle, piston 5 and 6 will arrive at its reversal point simultaneously, so as to can not realize mutually complementary
Repay.
Therefore, as shown in figure 3, roller 53 and 63 offsets from each other a quarter that roller 9 rotates one week, rolling is worked as in this expression
When wheel 63 reaches the centre position of helicla flute 95 (this process is corresponding with the half that piston 6 is located at stroke), roller 53 arrives at spiral shell
The intersection of spin slot 94 and 95.
In order to more effectively compensate for the reversing of motion of piston, according to the present invention, pump 1 also includes being suitable to work as in piston 5 and 6
One when reaching its reversal point to compensation device that another is accelerated.
According to the first embodiment of the invention, the compensation device is included in a process in piston 5 and 6 its is reverse
The control list schematically shown in the device accelerated in preset duration before or after point to the rotating speed of roller 9, i.e. Fig. 1
Member 10.Therefore, by speed zero point after a piston slows down wherein, the whole period then further accelerated, 10 pairs of control unit
The rotating speed of roller 9 is accelerated, to cause the point-to-point speed of another piston to be also accelerated, so as to realize to foregoing piston speed
The compensation slowed down.As the diagram in figure 5 shows, the figure show the rotating speed V of roller 9 as the angle position of roller 9 to this method
Function and the process developed.The rate curve is sent to motor 3 by control unit 10 in the form of electric signal S10.Whenever roller 9
When rotating a quarter of one circle, that is, when rotating the radian of pi/2, the reversing of motion occurs for piston 5 or 6, and passes through lifting immediately
Drum rotation speed V under near this angle position is compensated.
For example, the rotating speed of roller 9 can increase per minute 5 and go to 10 turns.
Control unit 10 is preferably to implement the electronic unit of driven control to the rotating speed of motor 3.
For example, piston is by the angular interval before and after its reversal point, i.e., the angle accelerated to the rotating speed of roller 9
Interval, can be 0.14 to 0.28 radian.
Fig. 6 show second embodiment of the present invention.In this embodiment, with first embodiment identical element
Marked with same reference numerals, and working method is also identical.Only its difference from first embodiment is carried out below general
State.
In Fig. 6, for the sake of clarity, it illustrate only in the roller 9 shown in Fig. 4 sectional views at two positions, and roller
53 and 63.
In Fig. 6 illustrated embodiments, the compensation device above-mentioned can be used to add the rotating speed of roller 9 to substitute
The mode of the device of speed includes, or includes simultaneously outside the device, two in cam type groove 92 angular regions 97, its
In, relative to axis X-X ' vertical plane P2 inclination angle A97 is more than the remaining angular regions of cam type groove 92
Nominal inclination angle A92.The remaining angular regions are defined as extending the part of the cam type groove 92 outside angular regions 97.Spiral shell
The center section of spin slot 94 and 95 is all provided with gradient bigger angular regions 97.In this way, for offsetting from each other 90 ° of the He of roller 53
For 63, when roller 53 arrives at reversal point (shown on the left of Fig. 6), roller 63 is in contact with angular regions 97 (on the right side of such as Fig. 6
It is shown).In this fashion, because cell wall 94b, 95b, 94c and 95c gradient are increased, translation of the roller 63 along axis X-X'
Speed is lifted.Therefore, being fixed to the acceleration of the piston 6 of roller 63 can enter to the deceleration of piston 5 and by speed zero point
Row compensation.This may be such that when one in piston 5 and 6 reaches its reversal point so that the pressure in the exit of pump 1 only occurs relatively
Small change.
According to the favourable optional aspect of the present invention, inclination angle A97 value is preferably twice of inclination angle A92 value.
Certainly, position of the angular regions 97 at the intermediate point of helicla flute 94 and 95 and 53 and 63 orientation under 90 ° of roller
It is related.
Fig. 7 show third embodiment of the present invention.According to the 3rd embodiment, pump 1 may also include positioned at the He of piston 5
The pressure sensor 100 in 6 two hydraulic output pipelines C1 and C2 downstream, so as to the pressure to the exit of pump 1 and its
In a piston approach the pressure drop after reversal point and measure.Pressure sensor 100 is contained in the compensation device, and even
It is connected to control unit 10, or to be connected to other any being suitable to according to measured by pressure sensor 100 and in electric signal SP modes
Send the device of the rotating speed to the pressure value hoisting drum 9 of control unit 10.Therefore, can be dropped in the pressure value at the pump discharge
When below to for example, threshold value of 15 bars, the lifting to the rotating speed of roller 9 is triggered.
According to one embodiment of the present invention (not shown), pump 1 may include more than two pistons.
The feature and alternative solution of above-mentioned embodiment can be mutually combined, to form new embodiment of the present invention.
Claims (10)
1. a kind of transfer pump (1) for liquid mulch application system, the transfer pump is included at least two pistons (5,6)
The motor (3) being driven, it is characterised in that：It is additionally included in the roller that rotational motion is carried out under the driving of the motor (3)
(9), the roller (9) includes the outer cylinder (90) with cam type groove (92)；The piston (5,6) be fixed on the body of rod (51,
61) on, roller (53,63) is further fixed on the body of rod, the roller is rolled along the cam type groove (92), so that through
The effect of rotational motion of the piston (5,6) that the body of rod (51,61) connects with the roller (53,63) in roller (9)
The corresponding translated axis line of lower edge (X5, X6) carries out translational motion；One of them of the cam type groove (92) and the roller
Contact position has deviation angle (A) relative to the contact position of the cam type groove (92) and the other in which of the roller,
So that when the reversal point that one in the piston (5,6) is arrived in its direction of motion, it is another in the piston (5,6)
One is in translational motion state；The transfer pump (1) also includes compensation device, and the compensation device is used for when the piston
One in (5,6) arrive in its direction of motion reversal point when, to another the translational motion in the piston (5,6)
Speed is accelerated.
2. transfer pump (1) according to claim 1, it is characterised in that the compensation device includes accelerator (10), should
Accelerator (10) is used in the preset duration before or after process its reversal point in the piston (5,6) to institute
The rotating speed for stating the rotational motion of roller (9) is accelerated.
3. transfer pump (1) according to claim 2, it is characterised in that the accelerator (10) is to the motor (3)
Rotating speed carry out the control unit of driven control.
4. transfer pump (1) according to claim 2, it is characterised in that the compensation device also includes being arranged at the work
The pressure sensor (100) in (5,6) downstream is filled in, the accelerator (10) is used for according to measured by the pressure sensor (100)
Pressure value (SP) lifted the roller (9) rotational motion rotating speed (V).
5. transfer pump (1) according to claim 1, it is characterised in that the compensation device is by the cam type groove (92)
Two angular regions (97) formed, the angular regions (97) relative to the rotation axis (X-X') of the roller (9) hang down
Straight plane (P2) has inclination angle (A97), and the inclination angle (A97) is more than the remaining angular regions of the cam type groove (92)
Inclination angle (A92).
6. transfer pump (1) according to claim 5, it is characterised in that form the cam type groove of the compensation device
(92) value at the inclination angle (A97) of angular regions (97) is the inclination angle (A92) of the remaining angular regions of the cam type groove (92)
Twice of value.
7. transfer pump (1) according to claim 1, it is characterised in that be included in and 90 ° of two work are offset from each other in angle
Fill in (5,6).
8. transfer pump (1) according to claim 1, it is characterised in that the cam type groove (92) includes two helicla flutes
Each in (94,95), described two helicla flutes (94,95) extends the half of the circumference of the roller (9), described two
Helicla flute (94,95) is symmetrical relative to the plane (P1) of the rotation axis (X-X') by the roller (9).
9. transfer pump (1) according to claim 1, it is characterised in that the deviation angle (A) between the roller (53,63)
For 70 ° to 100 °.
10. transfer pump (1) according to claim 9, it is characterised in that the deviation angle (A) between the roller (53,63)
For 90 °.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1561346A FR3044052B1 (en) | 2015-11-25 | 2015-11-25 | PUMP FOR SUPPLYING A SYSTEM FOR APPLYING A LIQUID COATING PRODUCT |
| FR1561346 | 2015-11-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107051832A true CN107051832A (en) | 2017-08-18 |
| CN107051832B CN107051832B (en) | 2021-03-12 |
Family
ID=55025244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611048720.0A Expired - Fee Related CN107051832B (en) | 2015-11-25 | 2016-11-23 | Supply pump for liquid blanket application system |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20170146008A1 (en) |
| EP (1) | EP3173621B1 (en) |
| JP (1) | JP2017110638A (en) |
| KR (1) | KR20170061090A (en) |
| CN (1) | CN107051832B (en) |
| FR (1) | FR3044052B1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111379682A (en) * | 2018-12-29 | 2020-07-07 | 韦伯斯特生物官能(以色列)有限公司 | Disposable double-acting reciprocating pump assembly |
| CN112879261A (en) * | 2021-03-01 | 2021-06-01 | 胡兵 | Concrete pump with ultrahigh lift |
| CN113578688A (en) * | 2020-04-30 | 2021-11-02 | 乐佰得控股集团 | Method for operating a piston pump, piston pump and coating system |
| CN114303013A (en) * | 2019-09-04 | 2022-04-08 | 汉克沙斯伍夫公司 | Device for applying a fluid |
| CN115013283A (en) * | 2022-07-06 | 2022-09-06 | 浙江千机智能科技有限公司 | Power plant |
| WO2023077492A1 (en) * | 2021-11-07 | 2023-05-11 | Oms Investments, Inc. | Fluid pump |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190128245A1 (en) * | 2016-05-06 | 2019-05-02 | Active Tools International (Hk) Ltd. | Compressor |
| US11936072B2 (en) * | 2019-10-09 | 2024-03-19 | Nagano Automation Co., Ltd. | Apparatus for supplying liquid |
| US20230106780A1 (en) * | 2021-10-01 | 2023-04-06 | Board Of Regents, The University Of Texas System | Reciprocating Pump |
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Also Published As
| Publication number | Publication date |
|---|---|
| FR3044052A1 (en) | 2017-05-26 |
| EP3173621A1 (en) | 2017-05-31 |
| JP2017110638A (en) | 2017-06-22 |
| CN107051832B (en) | 2021-03-12 |
| US20170146008A1 (en) | 2017-05-25 |
| KR20170061090A (en) | 2017-06-02 |
| EP3173621B1 (en) | 2019-03-06 |
| FR3044052B1 (en) | 2019-09-13 |
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