CN209539676U - Flow divider-combiner - Google Patents
Flow divider-combiner Download PDFInfo
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- CN209539676U CN209539676U CN201822096186.1U CN201822096186U CN209539676U CN 209539676 U CN209539676 U CN 209539676U CN 201822096186 U CN201822096186 U CN 201822096186U CN 209539676 U CN209539676 U CN 209539676U
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Abstract
The utility model provides a kind of flow divider-combiner, including valve pocket, valve seat, the first spool and the second spool, the valve pocket is mounted on the valve seat, first spool and the second spool be placed in the valve pocket and can opposing valve sleeves reciprocally slide, guide post is provided between first spool and second spool, one end of the guide post wears and connects first spool, and the other end wears and connects the second spool.Flow divider-combiner provided by the utility model is by being arranged guide post between the first spool and the second spool, side knock can be preferably resisted on the basis of interconnection between the first spool and the second spool realizing, the capability improving of the anti-oil shock of flow divider-combiner, reliability and stability can more be guaranteed, and have wide practical use.
Description
Technical field
The utility model relates to fluid control technology field more particularly to a kind of flow divider-combiners for fluid control.
Background technique
Flow divider-combiner is the independent hydraulically controlled device for integrating the respective function of flow divider and combiner valve, and acting on is to make liquid
Pressure system can be by an oil sources to two load supplies or the hydraulic oil of recycling certain proportion relationship, to realize to two
The proportional control of the speed of a load operation.Current flow divider-combiner is easy to card when operating under biggish load deviation
Extremely, spool is also easy to pull apart, and influences the shunting precision and reliability of flow divider-combiner.
Utility model content
In view of this, the flow divider-combiner can be avoided shunting and collection it is necessary to provide a kind of improved flow divider-combiner
Card valve phenomenon when stream, shunting precision and reliability are promoted.
The utility model provides a kind of flow divider-combiner, including valve pocket, valve seat, the first spool and the second spool, the valve
Set is mounted on the valve seat, first spool and the second spool be placed in the valve pocket and can opposing valve sleeves reciprocally
Sliding, is provided with guide post, one end of the guide post wears and connects institute between first spool and second spool
The first spool is stated, the other end wears and connects the second spool.
Further, one end that the guide post wears first spool is provided with the first locating part, first limit
Position part fastens first spool and limits the axial movement of first spool；The guide post wears second spool
One end is provided with the second locating part, and second locating part fastens second spool and limits the axial of second spool and moves
It is dynamic.
Further, third locating part is provided in the guide post, the third locating part setting is in first limit
Between position part and the second locating part, the third locating part matches the axial fortune for merging limit first spool with the first locating part
Dynamic stroke, the third locating part match with the second locating part and merge the axial movement stroke for limiting second spool.
Further, the center cross-sectional mirror image of first locating part guide post opposite with the second locating part is set
It sets；And/or
The third locating part is centrally positioned between the first locating part and the second locating part.
Further, at least one of first locating part, the second locating part and third locating part are retaining ring.
Further, oil collect port, first point of hydraulic fluid port and second point of hydraulic fluid port are offered on the valve pocket, on first spool
The first segment discharge orifice of corresponding first point of hydraulic fluid port is offered, corresponding second point of hydraulic fluid port is offered on second spool
Second throttle orifice, first spool and the second spool are between the slidable adjustment first segment discharge orifice and first point of hydraulic fluid port in valve pocket
And second effective between throttle orifice and second point of hydraulic fluid port be connected to area.
Further, first spool is provided with the first fixing seat and the first elastic component close to one end of the valve seat,
First fixing seat is fixed on first spool, and one end of first elastic component supports first fixing seat, separately
One end supports first spool, and first spool is reciprocal by the relatively described valve pocket of elastic reaction of first elastic component
Ground sliding.
Further, second spool is provided with the second fixing seat and the second elastic component far from one end of the valve seat,
Second fixing seat is fixed on second spool, and one end of second elastic component supports second fixing seat, separately
One end supports second spool, and second spool is reciprocal by the relatively described valve pocket of elastic reaction of second elastic component
Ground sliding.
Further, valve chamber is offered in the valve pocket, first spool and the second spool are placed in the valve pocket
In valve chamber；
Offer the first spool chamber and at least one first intercommunicating pore in first spool, first spool chamber with
First point of hydraulic fluid port is interconnected, and is interconnected between the valve chamber and first spool chamber by the first intercommunicating pore；And/
Or,
Offer the second spool chamber and at least one second intercommunicating pore in second spool, second spool chamber with
Second point of hydraulic fluid port is interconnected, and is interconnected between the valve chamber and second spool chamber by the second intercommunicating pore.
Further, the outer wall of first spool circumferentially offers multiple first balancing slits, and multiple described first
Indent is arranged along valve pocket axis direction interval；And/or
Multiple second balancing slits are circumferentially offered on the outer wall of second spool, multiple second balancing slits are along institute
State the setting of valve pocket axis direction interval.
Flow divider-combiner provided by the utility model is by being arranged guide post between the first spool and the second spool, in reality
Side knock can be preferably resisted on the basis of being connected with each other between existing first spool and the second spool, flow divider-combiner resists
The capability improving of oil shock, reliability and stability can more be guaranteed, have wide practical use.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of flow divider-combiner in the utility model one embodiment；
Fig. 2 is enlarged diagram of the flow divider-combiner at A shown in Fig. 1.
Main element symbol description
The following detailed description will be further explained with reference to the above drawings the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
It should be noted that it can be installed directly in another group when component is referred to as " being installed in " another component
On part or there may also be components placed in the middle.When a component is considered as " being set to " another component, it be can be directly
It connects and is arranged on another component or may be simultaneously present component placed in the middle.When a component be considered as " being fixed on " another
Component, it, which can be, is directly anchored on another component or may be simultaneously present component placed in the middle.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein " and/or " include
Any and all combinations of one or more related listed items.
Referring to Fig. 1, Fig. 1 is the structural schematic diagram of flow divider-combiner 100 in the utility model one embodiment.This is practical
The flow divider-combiner 100 of novel offer is to distribute and collect hydraulic oil, the working flow for enabling two or more to load
It is enough to keep comparing relationship surely.
It refers to flowing in or out multiple loads than relationship it should be noted that the working flow of multiple loads keeps fixed
The equal perhaps linear correlation of hydraulic fluid flow rate such as two load hydraulic fluid flow rates it is equal or one load hydraulic oil stream
Amount is twice of another load hydraulic fluid flow rate.
Flow divider-combiner 100 includes valve pocket 10, valve seat 20 and core assembly 30, and valve pocket 10 has the first end being oppositely arranged
10a and second end 10b, valve seat 20 are set at the first end 10a of valve pocket 10, and core assembly 30 is set to the inside of valve pocket 10, are shunted
Combiner valve 100 is inserted by the second end 10b of valve pocket 10 into hydraulic system, and flow divider-combiner 100 is existed by core assembly 30
The shunting of mobile control itself under oil pressure and afflux.
Valve pocket 10 is in substantially hollow cylindrical, and the inside of valve pocket 10 forms the valve chamber 11 for accommodating core assembly 30, valve
At least three hydraulic fluid ports 12 are offered on set 10, hydraulic fluid port 12 and valve chamber 11 are interconnected, and are used for for hydraulic oil inflow or inflow point
Flow combiner valve 100.
In present embodiment, the quantity of hydraulic fluid port 12 is three, respectively 121, first points of hydraulic fluid ports 122 and second of oil collect port
Divide hydraulic fluid port 123；When shunting, hydraulic oil is flowed into flow divider-combiner 100 flow divider-combiner 100 by oil collect port 121, then with fixed
Flow divider-combiner 100 is flowed out from first point of hydraulic fluid port 122 and second point of hydraulic fluid port 123 than relationship；Flow divider-combiner 100 in afflux,
Hydraulic oil passes through first point of hydraulic fluid port 122 and second point of hydraulic fluid port 123 into the inside of flow divider-combiner 100 than relationship with fixed, then from
It is flowed out in oil collect port 121.
Specifically, oil collect port 121 is to be connected to the external oil circuit element such as hydraulic cylinder, first point of hydraulic fluid port 122 and second point
For hydraulic fluid port 123 to be connected to load or executive component, the hydraulic oil in hydraulic system enters flow divider-combiner by oil collect port 121
In 100, then passes through the fixed of flow divider-combiner 100 and flow to load from first point of hydraulic fluid port 122 and second point of hydraulic fluid port 123 than shunting function
Place, and load operation is driven, vice versa.
It shunts and is determined with the fixed of flow when afflux than relationship by adjusting the openings of sizes of each hydraulic fluid port 12, present embodiment
In, the openings of sizes of first point of hydraulic fluid port 122 and second point of hydraulic fluid port 123 is equal, in shunting or afflux first divide hydraulic fluid port 122 with
The corresponding load working flow having the same of second point of hydraulic fluid port 123.It is appreciated that in other implementations, the
The openings of sizes of one point of hydraulic fluid port 122 and second point of hydraulic fluid port 123 can also be unequal, and specifically proportionate relationship can be according to reality
Operating condition selection.
Further, multiple mounting groove (not labeled) are circumferentially offered at the outer wall of valve pocket 10, in each mounting groove
Sealing element 13 and retaining ring 14 are installed, multiple sealing elements 13 are arranged the peripheral wall of valve pocket 10 and along the central axis side of valve pocket 10
To setting is spaced apart from each other, sealing element 13 is for sealing flow divider-combiner 100 and external hydraulic element；Retaining ring 14 matches suitable sealing element
13, retaining ring 14 supports and fixing seals 13, to limit the axial movement of sealing element 13.
In the present embodiment, sealing element 13 is O-ring seals.It is appreciated that in other implementations, sealing element 13
It can also be the other kinds of sealing elements such as v-ring, airtight and watertight padding.
Valve seat 20 is arranged and is fixed at the first end 10a of valve pocket 10, is threadedly coupled simultaneously with the first end 10a of valve pocket 10
It seals against each other.Valve seat 20 using separate structure and is fixedly connected with valve pocket 10, both to need to be accommodated in the component in valve pocket 10
It can fit into valve pocket 10, and valve pocket 10 and valve seat 20 is enabled to constitute entirety, be formed inside valve seat 20 and valve pocket 10
Cavity for accommodating hydraulic oil only passes through hydraulic fluid port 12 and is connected to the external world, remaining flow pass is not present, thus guaranteeing to seal
Performance.
Core assembly 30 includes the first spool 31, the second spool 32 and guide post 33, the first spool 31 and the second spool
32 can be oppositely oriented the sliding of column 33, and guide post 33 is set between the first spool 31 and the second spool 32, and be separately connected the
One spool 31 and the second spool 32；First segment discharge orifice 311 is offered on the position of the corresponding first point of hydraulic fluid port 122 of first spool 31,
The second throttle orifice 321 is offered on the position of the corresponding second point of hydraulic fluid port 123 of second spool 32, in the driving lower valve core assembly of oil pressure
The position of 30 opposing valve sleeves 10 changes, and the first spool 31 and the second spool 32 opposing valve sleeves 10 under the action of oil pressure are opposite
Or back movement, area, second point are connected to effective between first point of hydraulic fluid port 122 and first segment discharge orifice 311 to realize
Effective adjusting for being connected to area between hydraulic fluid port 123 and the second throttle orifice 321.
It should be noted that effectively connection area refers to that the overlapping area between hydraulic fluid port and throttle orifice, fluid can lead to
It crosses the intersection and effective flows into or flow out flow divider-combiner 100, the change for being effectively connected to area is just realized to shunting or collection
Flow the adjustment of flow.
Specifically, the first spool 31 is substantially in hollow cylindrical, the first hollow spool is formed inside the first spool 31
Chamber 312, the first spool chamber 312 are opened up along the axis direction extension of the first spool 31 and are interconnected with first segment discharge orifice 311；By
The internal chamber formation of valve pocket 10 is isolated with the first spool 31 in guide post 33, in order to realize first point of hydraulic fluid port 122 and oil-collecting
Being interconnected for mouth 121, is also provided with multiple first intercommunicating pores 313 on the side of the first spool 31；When shunting, from oil-collecting
Mouthfuls 121 hydraulic oil flowed into enter the inside of the first spool 31 by the first intercommunicating pore 313, from by first segment discharge orifice 311 and
First point of hydraulic fluid port 122 is flow in external loading, then reverse circulated when afflux.
First spool 31 offers the first through hole 314 protruded into for guide post 33 close to the endface of guide post 33, and first
Through-hole 314 and the first spool chamber 312 be interconnected, first spool 31 that protrudes into that guide post 33 passes through 314 part of first through hole
It is internal.
The outer wall of first spool 31 circumferentially offers multiple first balancing slits 315, multiple first balancing slit, 315 edges
The axis direction interval of valve pocket 10 is arranged, and the effect of the first balancing slit 315 is to reduce by the first spool 31 to occur during the motion
Hydraulic lock phenomenon, to guarantee the first spool 31 steady and smoothness during the motion.
Second spool 32 is similar with the structure of the first spool 31, is also substantially in hollow cylindrical, 32 inside shape of the second spool
At the second hollow spool chamber 322, the second spool chamber 322 is opened up along the axis direction extension of the second spool 32 and is throttled with second
Hole 321 is interconnected；Since guide post 33 is isolated the internal chamber formation of valve pocket 10 with the second spool 32, in order to realize second
Being interconnected for point hydraulic fluid port 123 and oil collect port 121, is also provided with multiple second intercommunicating pores 323 on the side of the second spool 32；
When shunting, the hydraulic oil flowed into from oil collect port 121 enters the inside of the second spool 32 by the second intercommunicating pore 323, from passing through
Second throttle orifice 321 and second point of hydraulic fluid port 123 are flow in external loading, then reverse circulated when afflux.
Second spool 32 offers the second through-hole 324 protruded into for guide post 33 close to the endface of guide post 33, and second
Through-hole 324 and the second spool chamber 322 be interconnected, second spool 32 that protrudes into that guide post 33 passes through 324 part of the second through-hole
It is internal.
The outer wall of second spool 32 circumferentially offers multiple second balancing slits 325, multiple second balancing slit, 325 edges
The axis direction interval of valve pocket 10 is arranged, and the effect of the second balancing slit 325 is to reduce by the second spool 32 to occur during the motion
Hydraulic lock phenomenon, to guarantee the second spool 32 steady and smoothness during the motion.
Referring to Figure 2 together, Fig. 2 is enlarged diagram of the flow divider-combiner 100 at A shown in Fig. 1.The one of guide post 33
End is protruded into the first spool 31 by first through hole 314, and the other end is protruded into the second spool 32 by the second through-hole 324, is oriented to
Column 33 allows the first spool 31 and the opposite own slip a certain distance of the second spool 32, to provide between hydraulic fluid port and throttle orifice
Adjusting stroke.
In present embodiment, guide post 33 is cylinder, on the one hand guide post 33 is more conducive to the first spool using cylinder
31 and the second opposite own slip of spool 32, on the other hand there is more preferably shock resistance to the oil shock power in valve.
Certainly, in other implementations, guide post 33 can also be using other shapes such as Elliptic Cylinder, as long as leading
It is formed to the end face of column 33 and is matched with the shape of first through hole 314 and the second through-hole 324.
In shunting or afflux, impacted at guide post 33 by the hydraulic oil that oil collect port 121 flows into or collects, due to leading
The first spool 31 and the second spool 32 are rotationally connected to column 33, is relied on relative to traditional coupling type flow divider-combiner to being hit by a bullet
Spring overcomes the modes of lateral impact forces, has a more preferably shock resistance, at the same last a long time, the energy loss of fluid it is small.
Further, in order to avoid guide post 33 is detached from the first spool 31 or the second spool 32, guide post 33 is in outer side
The first locating piece 331 is provided on the position of the first spool 31, the first locating piece 331 fastens the first spool 31, is used for
Limit the position that the first spool 31 is oppositely oriented column 33；Guide post 33 is provided on the position of the second spool 32 in outer side
Second locating piece 332, the second locating piece 332 fasten the second spool 32, are used to limit the second spool 32 and are oppositely oriented column 33
Position.
In present embodiment, the first locating piece 331 and the second locating piece 332 are retaining ring, and retaining ring is fixed on guide post 33
Lateral surface on and correspondence fasten the first spool 31 or the second spool 32, thus realize to the first spool 31 or the second spool 32
The limit of axial position.
It is appreciated that in other implementations, the first locating piece 331 and the second locating piece 332 can also be using fixed
Other setting elements such as position pin realize the axial limiting to the first spool 31 or the second spool 32.
Further, in order to realize that the both-end to 32 movement travel of the first spool 31 and the second spool limits, guide post 33
Be provided with third locating piece 333 in outer lateral position, third locating piece 333 be located at the first locating piece 331 and the second locating piece 332 it
Between be substantially centered position or neighbouring position, third locating piece 333 and the first locating piece 331 cooperate, and can be realized to the first valve
The both-end of core 31 limits；Third locating piece 333 and the second locating piece 332 cooperate, and can be realized the both-end limit to the second spool 32
Position.
It should be noted that both-end limit refers to that the maximum position that spool is advanced axially relative and retreats can be limited, the
The movement travel of one spool 31 determines by the distance between third locating piece 333 and the first locating piece 331, the fortune of the second spool 32
Dynamic stroke is determined by the distance between third locating piece 333 and the second locating piece 332.
In present embodiment, third locating piece 333 uses retaining ring, and retaining ring is arranged guide post 33 and is fixed on guide post 33
Lateral surface on.
It is appreciated that in other implementations, the first locating piece 331 and the second locating piece 332 can also be using fixed
Other setting elements such as position pin realize the axial limiting to the first spool 31 or the second spool 32.
In present embodiment, when the first locating piece 331, the second locating piece 332 and third locating piece 333 are retaining ring, three
A retaining ring is embedded in and is fixed in guide post 33, at this time the corresponding ring-type offered for accommodating three retaining rings in guide post 33
Groove 334, groove 334 are circumferentially provided on the lateral surface of guide post 33.
Certainly, when the first locating piece 331, the second locating piece 332 and third locating piece 333 are using retaining ring, retaining ring can also
With using glue is solid etc. other modes are fixed in guide post 33 namely retaining ring can using be embedded it is fixed by the way of be fixed on guiding
It on column 33, can also be fixed in such a way that glue is solid in guide post 33, both fixed forms can also be used simultaneously.
In present embodiment, the right balance for improving flow divider-combiner 100, the first locating piece 331 and the second locating piece
332 with the center cross-sectional mirror settings of guide post 33, and the first locating piece 331 and the second locating piece 332 are in guide post 33
It is symmetrical with center cross-sectional that position is set.
Additional description is needed, center cross-sectional here refers in guide post 33 by the transversal of its geometric center
Face, it is symmetrical with the first locating piece 331 and the opposite cross section of the second locating piece 332.
In present embodiment, the lean-with of the first locating piece 331 and the second locating piece 332 is arranged in third locating piece 333
Set distance away from the first locating piece 331 of place namely third locating piece 333 and third locating piece 333 away from the second locating piece 332 away from
From equal, the balance of flow divider-combiner 100 is preferable at this time, and fluid motion characteristics of the fluid when collecting or separating are relatively
It is good.
Further, the setting position of third locating piece 333 and oil collect port 121 open up that position is corresponding namely oil collect port
121 center is overlapped with the whole projection in the central axial direction of flow divider-combiner 100 of third locating piece 333, at this time
The corresponding oil collect port 121 of third locating piece 333 opens up position setting, and the fluid flowed in or out from catchment port being capable of face guiding
Column 33, maximumlly using guide post 33 to the resisting efficiency of fluid axial impact force.
Certainly, the first locating piece 331, the second locating piece 332 and third locating piece 333 are not limited to only use above-mentioned
Positional relationship assembly, in other implementations, the first locating piece 331, the second locating piece 332 and third locating piece 333
Specific mounting means can be selected according to actual condition.
It is appreciated that if not considering the limitation to 32 movement travel of the first spool 31 and the second spool, the first locating piece
331, the second locating piece 332 and third locating piece 333 can omit.
It is appreciated that if further increasing the quantity of hydraulic fluid port 12, only need to be arranged more spools, adjacent spool it
Between be connected with each other by guide post 33, more than two points of hydraulic fluid ports can be shunted by oil collect port at this time or collection
Stream.
The first spool 31 is resetted in order to fix the first spool 31 and realize, flow divider-combiner 100 is also provided with first
Elastic component 41 and the first fixing seat 42, the first fixing seat 42 are fixed on first one end of spool 31 far from guide post 33, the first bullet
Property part 41 wear the first spool 31, one end acts on the first fixing seat 42, and the other end acts on the first spool 31 far from guiding
One end of column 33.
When oil pressure reduces, the elastic force that the first elastic component 41 provides overcomes the driving force of oil pressure, to make the first spool 31
It is moved towards the direction close to guide post 33, and increase between first point of hydraulic fluid port 122 and first segment discharge orifice 311 accordingly effective is connected to
Area；Same reason, when oil pressure increases, the elastic force that the driving force that oil pressure provides can overcome the first elastic component 41 to provide, from
But the first spool 31 is moved towards the direction far from guide post 33, and reduces first point of hydraulic fluid port 122 and first segment discharge orifice 311 accordingly
Between effective connection area.
In this way, the first spool 31 throttles when hydraulic fluid pressure is larger, expands stream when hydraulic fluid pressure is smaller, can guarantee
The fluid passed or flowed into through first point of hydraulic fluid port 122 has metastable circulation under different oil pressure, and load can be improved
Job stability.
Likewise, resetting to fix the second spool 32 and realize to the second spool 32, flow divider-combiner 100 is also set up
Second elastic component 51 and the second fixing seat 52, the second fixing seat 52 are fixed on second one end of spool 32 far from guide post 33,
Second elastic component 51 wears the second spool 32, and one end acts on the second fixing seat 52, and it is remote that the other end acts on the second spool 32
One end from guide post 33.
When oil pressure reduces, the elastic force that the second elastic component 51 provides overcomes the driving force of oil pressure, to make the second spool 32
It is moved towards the direction close to guide post 33, and increase between second point of hydraulic fluid port 123 and the second throttle orifice 321 accordingly effective is connected to
Area；Same reason, when oil pressure increases, the elastic force that the driving force that oil pressure provides can overcome the second elastic component 51 to provide, from
But the second spool 32 is moved towards the direction far from guide post 33, and reduces second point of hydraulic fluid port 123 and the second throttle orifice 321 accordingly
Between effective connection area.
In this way, the second spool 32 throttles when hydraulic fluid pressure is larger, expands stream when hydraulic fluid pressure is smaller, can guarantee
The fluid passed or flowed into through second point of hydraulic fluid port 123 has metastable circulation under different oil pressure, and load can be improved
Job stability.
The working principle of flow divider-combiner 100 is simply illustrated below:
For ease of description, defining the oil pressure at oil collect port 121 is P0, and the oil pressure in the first spool chamber 312 is P1, second
Oil pressure in spool chamber 322 is P2, and the oil pressure at first point of hydraulic fluid port 122 is P3, and the oil pressure at second point of hydraulic fluid port 123 is P4.
When no hydraulic oil flows in or out, the first spool 31 and the second spool 32 under the effect of elasticity it is opposing stationary simultaneously
Keep balance.
When shunting operating condition, since P0 is greater than P1 and P2, then the first spool 31 and the second spool 32 are under the action of oil pressure
Back movement, the two the connection function of guide post 33 and the first locating piece 331, the second locating piece 332 position-limiting action under shape
It is integral.If P4 is greater than P3 at this time, necessarily there is P2 to be greater than P1, then the first spool 31 and the second spool 32 can be with whole sides
Formula is mobile to the direction of the first spool 31, so that the valid circulation area of first segment discharge orifice 311 reduces, the second throttle orifice
321 valid circulation area becomes larger, to constantly increase P1, until P1 is equal to P2, at this time the first spool 31 and the second spool 32
Stop motion is simultaneously in shunting equilibrium state.Since the valid circulation area of first segment discharge orifice 311 and the second throttle orifice 321 is arranged
It is equal, then flow divider-combiner 100 is just shunted with equal flow to first segment discharge orifice 311 and the second throttle orifice 321.
In afflux operating condition, since P0 is less than P1 and P2, then the first spool 31 and the second spool 32 are under the action of oil pressure
It moves toward one another, the two forms whole under the connection function of guide post 33 and the position-limiting action of third locating piece 333.If P4 at this time
Greater than P3, then necessarily there is P2 to be greater than P1, then the first spool 31 and the second spool 32 can be in an integrated manner to the first spools 31
Direction it is mobile so that the valid circulation area of first segment discharge orifice 311 increases, the valid circulation area change of the second throttle orifice 321
Small, to constantly reduce P2, until P2 is equal to P1, the first spool 31 and 32 stop motion of the second spool at this time is simultaneously in collection levelling
Weighing apparatus state.Since first segment discharge orifice 311 is equal with the setting of the valid circulation area of the second throttle orifice 321, then flow divider-combiner
100 just with equal flow from first segment discharge orifice 311 and the second throttle orifice 321 afflux into oil collect port 121.
Flow divider-combiner 100 provided by the utility model is oriented to by being arranged between the first spool 31 and the second spool 32
Column 33 can preferably resist side knock on the basis of interconnection between the first spool 31 and the second spool 32 realizing,
The capability improving of the anti-oil shock of flow divider-combiner 100, reliability and stability can more be guaranteed, before being widely used
Scape.
Those skilled in the art it should be appreciated that more than embodiment be intended merely to illustrate that this is practical new
Type, and be not used as the restriction to the utility model, as long as implementing in the spirit of the utility model to above
Suitably change and change made by mode and all falls in the range of the requires of the utility model protection.
Claims (10)
1. a kind of flow divider-combiner, including valve pocket, valve seat, the first spool and the second spool, the valve pocket are mounted on the valve seat
On, first spool and the second spool be placed in the valve pocket and can opposing valve sleeves reciprocally slide, which is characterized in that
Guide post is provided between first spool and second spool, one end of the guide post wears and connects described first
Spool, the other end wear and connect the second spool.
2. flow divider-combiner as described in claim 1, which is characterized in that the guide post wears one end of first spool
It is provided with the first locating part, first locating part fastens first spool and limits the axial movement of first spool；
One end that the guide post wears second spool is provided with the second locating part, and second locating part fastens second valve
Core and the axial movement for limiting second spool.
3. flow divider-combiner as claimed in claim 2, which is characterized in that be provided with third locating part, institute in the guide post
It states third locating part to be arranged between first locating part and the second locating part, the third locating part is matched with the first locating part
Merge the axial movement stroke for limiting first spool, the third locating part and the second locating part limit described the with merging
The axial movement stroke of two spools.
4. flow divider-combiner as claimed in claim 3, which is characterized in that first locating part institute opposite with the second locating part
State the center cross-sectional mirror settings of guide post；And/or
The third locating part is centrally positioned between the first locating part and the second locating part.
5. flow divider-combiner as claimed in claim 4, which is characterized in that first locating part, the second locating part and third
At least one of locating part is retaining ring.
6. flow divider-combiner as described in claim 1, which is characterized in that offer oil collect port, first point of oil on the valve pocket
Mouthful and second point of hydraulic fluid port, the first segment discharge orifice of corresponding first point of hydraulic fluid port, second valve are offered on first spool
The second throttle orifice of corresponding second point of hydraulic fluid port, the sliding of first spool and the second spool in valve pocket are offered on core
Adjust between first segment discharge orifice and first point of hydraulic fluid port and between the second throttle orifice and second point of hydraulic fluid port effective is connected to area.
7. flow divider-combiner as claimed in claim 6, which is characterized in that first spool is set close to one end of the valve seat
It is equipped with the first fixing seat and the first elastic component, first fixing seat is fixed on first spool, first elastic component
One end support first fixing seat, the other end supports first spool, and first spool passes through first elasticity
The relatively described valve pocket of the elastic reaction of part reciprocally slides.
8. flow divider-combiner as claimed in claim 6, which is characterized in that second spool is set far from one end of the valve seat
It is equipped with the second fixing seat and the second elastic component, second fixing seat is fixed on second spool, second elastic component
One end support second fixing seat, the other end supports second spool, and second spool passes through second elasticity
The relatively described valve pocket of the elastic reaction of part reciprocally slides.
9. flow divider-combiner as claimed in claim 6, which is characterized in that offer valve chamber, first valve in the valve pocket
Core and the second spool are placed in the valve chamber of the valve pocket；
Offer the first spool chamber and at least one first intercommunicating pore in first spool, first spool chamber with it is described
First point of hydraulic fluid port is interconnected, and is interconnected between the valve chamber and first spool chamber by the first intercommunicating pore；And/or
Offer the second spool chamber and at least one second intercommunicating pore in second spool, second spool chamber with it is described
Second point of hydraulic fluid port is interconnected, and is interconnected between the valve chamber and second spool chamber by the second intercommunicating pore.
10. flow divider-combiner as claimed in claim 6, which is characterized in that the outer wall of first spool circumferentially offers
Multiple first balancing slits, multiple first balancing slits are arranged along valve pocket axis direction interval；And/or
Multiple second balancing slits are circumferentially offered on the outer wall of second spool, multiple second balancing slits are along the valve
Cover the setting of axis direction interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822096186.1U CN209539676U (en) | 2018-12-13 | 2018-12-13 | Flow divider-combiner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822096186.1U CN209539676U (en) | 2018-12-13 | 2018-12-13 | Flow divider-combiner |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187843A (en) * | 2020-01-14 | 2021-07-30 | 深圳市固胜智能科技有限公司 | Flow dividing valve and hydraulic cylinder |
| CN117249279A (en) * | 2023-11-06 | 2023-12-19 | 佛山市能领五金制造有限公司 | Anti-blocking shunt conversion valve |
-
2018
- 2018-12-13 CN CN201822096186.1U patent/CN209539676U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187843A (en) * | 2020-01-14 | 2021-07-30 | 深圳市固胜智能科技有限公司 | Flow dividing valve and hydraulic cylinder |
| CN117249279A (en) * | 2023-11-06 | 2023-12-19 | 佛山市能领五金制造有限公司 | Anti-blocking shunt conversion valve |
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Address after: 689 Jiefang Road, Diankou Industrial Zone, Zhuji County, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Huayi Precision Machinery Co.,Ltd. Address before: 689 Jiefang Road, Diankou Industrial Zone, Zhuji County, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG HUAYI PRECISION MACHINERY Co.,Ltd. |
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Effective date of registration: 20230918 Address after: 311800 Diankou Town Industrial Zone, Zhuji City, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Sanshang Zhidi Technology Co.,Ltd. Address before: No. 689 Jiefang Road, Zhuji County, Shaoxing, Zhejiang Patentee before: Zhejiang Huayi Precision Machinery Co.,Ltd. |