CN205805870U - Bidirectional buffering and containing its Compressor Valve control system - Google Patents
Bidirectional buffering and containing its Compressor Valve control system Download PDFInfo
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- CN205805870U CN205805870U CN201620418451.1U CN201620418451U CN205805870U CN 205805870 U CN205805870 U CN 205805870U CN 201620418451 U CN201620418451 U CN 201620418451U CN 205805870 U CN205805870 U CN 205805870U
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- valve
- limit element
- hole
- fairlead
- damper piston
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Abstract
This utility model provides a kind of Bidirectional buffering and the Compressor Valve control system containing it.This Bidirectional buffering includes sleeve pipe, Buffer Unit and executive component, and executive component is slidedly arranged in sleeve pipe, and Buffer Unit includes lower limit element, fairlead, upper limit element, damper piston and positioning component.Lower limit element is arranged in sleeve pipe；The bottom pressure of fairlead is located at lower limit element；The bottom pressure of upper limit element is located at fairlead；Damper piston is slidedly arranged in fairlead along the length direction of fairlead, and damper piston is provided with throttle orifice；Positioning component for being positioned by damper piston for lower limit element, damper piston being positioned when the top of damper piston is connected to upper limit element upper limit element when the bottom of damper piston is connected to lower limit element.This Compressor Valve control system includes this Bidirectional buffering.This utility model can be effectively improved service life and the control accuracy of Compressor Valve control system.
Description
Technical field
This utility model relates to a kind of compressor, particularly to a kind of Bidirectional buffering and the piston compressor containing it
Air valve control system.
Background technology
Regulate to optimize the capacity of the reciprocating compressor that constant rotational speed reaches, generally use traditional backflow control
System, at least one inlet valve of the most each cylinder is kept in the range of the predetermined stroke of the compression travel of compressor to be beaten
Opening, the pressure of the gas being pushed back via the inlet valve stayed open or backflow power will be corresponding after the experience certain stroke of piston
Inlet valve cuts out.In order to be accurately controlled the capacity of compressor, preferable compressor should be the inlet valve time in regulation
Point is quickly opened when needing to open, quick closedown when needing to close.In order to make inlet valve quickly open, generally need to be to inlet valve
Sealing member applies bigger power, and in the closing process of inlet valve process, acts on the backflow power on inlet valve sealing member more
Greatly, this allows for compressor for realizing its inlet valve of capacity step-less adjustment during rapidly opened and closed, the sealing member of inlet valve
Bear greater impact power, cause compressor service life reduction.
The piston compressor discharge capacity step-less adjustment control system that Hoerbige company of Austria releases is controlling inlet valve
Opening and closing during introduce reduce potted component impact conceptual design, i.e. in valve opening procedure rely on be arranged on control valve
The inlet throttle mouth throttling of actuator and closing process reduce potted component by the damper piston effect in drainback passage and open
Close the impact to valve gap or valve seat.Although so relying on the throttle sealing unit to inlet valve in the opening procedure of inlet valve
Part plays certain protective effect, but owing to having delayed the opening process of inlet valve, and potted component can not be made completely
The damping of shocks between valve gap is obtained so that the control accuracy of compressor conveying capacity declines, the life-span fall of compressor during unlatching
Low；In the closing process of inlet valve, although the damper piston in actuator can make inlet valve major part closing process
Middle quick closedown, and movement velocity can be reduced when sealing member is close to valve seat, but owing to damper piston has inside and outside two sealing surfaces,
Owing to the leakage factor of sealing surface makes buffering course be difficult to be precisely controlled.
To sum up, Compressor Valve control system of the prior art also exists service life and control accuracy is relatively low
Defect.
Utility model content
The technical problems to be solved in the utility model is to overcome Compressor Valve in prior art to control system
System only possesses partially unidirectional pooling feature, service life is low, control accuracy is relatively low defect, it is provided that a kind of Bidirectional buffering and
Compressor Valve control system containing it, it is achieved the air valve sealing element of " opening buffering soon " and " quick closing valve buffering " two-way
Pooling feature.
This utility model is to solve above-mentioned technical problem by following technical proposals:
A kind of Bidirectional buffering, for Compressor Valve control system, its feature is, described bidirectional buffering
Device includes sleeve, a Buffer Unit and an executive component, and described Buffer Unit is arranged in described sleeve pipe, described performs unit
Part is slidedly arranged in described sleeve pipe, and wherein, described Buffer Unit includes:
Limit element once, is arranged in described sleeve pipe, and described lower limit element is provided with a lower through-hole, described lower limit
A hydraulic cavities is surrounded between the bottom of element, the inwall of described sleeve pipe and the top of described executive component；
One fairlead, the bottom pressure of described fairlead is located at described lower limit element；
One upper limit element, is oppositely arranged with described lower limit element, and the bottom pressure of described upper limit element is located at described
The top of fairlead, described upper limit element is provided with through hole on, and described upper through hole is passed through at the top of described upper limit element
For being connected to hydraulic power source, between described upper limit element and described lower limit element, described fairlead, surround an accommodation space；
One damper piston, in being slidedly arranged on described fairlead along the length direction of described fairlead and be positioned at described accommodation space
In, described damper piston is provided with a throttle orifice；
Wherein, when the bottom of described damper piston is connected to described lower limit element, the inwall of described fairlead, described
A upper plenum, described upper through hole, described upper plenum, institute is surrounded between top and the bottom of described upper limit element of damper piston
State throttle orifice, described lower through-hole and described hydraulic cavities and be sequentially connected logical；When the top of described damper piston is connected to the described upper limit
During bit unit, between the inwall of described fairlead, the bottom of described damper piston and the top of described lower limit element, surround one
Lower cavity, described hydraulic cavities, described lower through-hole, described lower cavity, described throttle orifice and described upper through hole are sequentially connected logical；
Described Buffer Unit also includes a positioning component, and described positioning component abuts for the bottom when described damper piston
When described lower limit element, described damper piston is positioned described lower limit element, and for when the top of described damper piston
When portion is connected to described upper limit element, described damper piston is positioned described upper limit element.
It is preferred that described positioning component includes:
One annular spring, the lateral surface of described fairlead has a first annular groove, and described annular spring is positioned at described
In first annular groove；
Multiple steel balls, described fairlead is provided with multiple positioning through hole, and multiple described positioning through hole are along described fairlead
The circumference of wall is uniformly distributed, and the aperture of multiple described positioning through hole is suitable with the groove width of described first annular groove, multiple
Described steel ball correspondence is arranged in multiple described positioning through hole, and each described steel ball is connected to described annular spring and described buffering
Between the lateral surface of piston；
Two second cannelures, are symmetricly set in the middle part of the lateral surface of described damper piston, each described second cannelure
Having a ramp and a lower inclined plane, described ramp is symmetrical arranged with described lower inclined plane；
Wherein, when being positioned at the lower inclined plane of described second cannelure of bottom and being connected to described steel ball, described damper piston
Top be connected to described upper limit element；When the ramp of superposed described second cannelure is connected to described steel ball
Time, the bottom of described damper piston is connected to described lower limit element.
Described steel ball under the elastic force effect of described annular spring all the time lateral surface with described damper piston be close to, and to
Described damper piston applies a radial force, when described damper piston move to described steel ball and described second cannelure upper tiltedly
When face or lower inclined plane contact, the power that described steel ball is applied on this inclined-plane can be analyzed to radial force and points to the axle of this bevel direction
Xiang Li, under the effect of axial force, described damper piston moves to axial force direction.Such as, exist when described damper piston
When moving upward under External Force Acting upwards, the ramp of superposed described second cannelure promotes described steel ball to overcome institute
The elastic force stating annular spring moves out, when described damper piston moves to make described steel ball and described second ring being positioned at bottom
During the lower inclined plane contact of shape groove, described steel ball is applied to the axial thrust load of lower inclined plane and upwards acts on and make described damper piston upwards transport
Move and be finally resisted against described upper limit element.After external force upwards disappears, owing to this axial thrust load there is also and acts on
On described damper piston, so that described damper piston is always held at being resisted against the position of described upper limit element.
It is preferred that described fairlead is annular fairlead, described sleeve pipe is annulus, and described annular fairlead and institute
The centrage stating annulus overlaps；Described fairlead is provided with three described positioning through hole, and three described positioning through hole are along institute
The circumferencial direction stating fairlead is uniformly distributed.
It is preferred that the top of described sleeve pipe has one first circular hole, bottom has one second circular hole, described first circular hole
Diameter is connected with described second circular hole more than diameter and described first circular hole of described second circular hole, described first circular hole and institute
State the second circular hole be connected place and described sleeve pipe inwall between surround a support platform, described support is located at by described lower limit element
Platform, described upper limit element, described fairlead, described damper piston and described positioning component are positioned at described first circular hole, institute
State executive component and be slidedly arranged on described second circular hole；
It is spigot joint that the top of described upper limit element has a taper, the spigot joint outside extending to described sleeve pipe of described taper,
Spigot joint and the described upper through hole of described taper is connected and for being connected to described hydraulic power source.
This utility model also provides for a kind of Compressor Valve control system, and its feature is, it includes as above institute
The Bidirectional buffering stated.
It is preferred that described Compressor Valve control system also includes:
One shell, has an oil-in and an oil-out, and described oil-in is used for being connected to described hydraulic power source, described fuel-displaced
Mouth is used for being connected to a fuel tank；
One control valve, is located in described shell, and described control valve has an electric magnet and an armature, described electric magnet and institute
Stating armature to be oppositely arranged, when described electric magnet is in "on" position, described electric magnet and described armature are attracted, when described electricity
When Magnet is in no power state, between described electric magnet and described armature, it is formed with a gap；Described control valve is provided with one
Oil return opening, a first flow and one second runner, described oil return opening is connected to described oil-out, and described first flow is with described
Do not connect between second runner；
One inlet valve, has a potted component, a valve seat and a valve gap, and described potted component is positioned at described valve seat and described
Between valve gap；
One tappet, one end of described tappet acts on described potted component by a lifting claw；
Wherein, described Bidirectional buffering is located between described control valve and described tappet, and the other end of described tappet is even
It is connected to described executive component, and described executive component is lifting plunger；
When described electric magnet is in no power state, described oil-in, described first flow, described upper through hole, described
Upper plenum, described throttle orifice, described lower through-hole and described hydraulic cavities are sequentially connected logical, and described lifting plunger is along the length of described sleeve pipe
Degree direction moves downwardly to described potted component and is connected to described valve gap；
When described electric magnet is in "on" position, described hydraulic cavities, described lower through-hole, described lower cavity, described throttling
Hole, described upper through hole, described second runner and described oil return opening are sequentially connected logical, and described lifting plunger is along the length of described sleeve pipe
Degree direction moves up to described potted component and is connected to described valve seat.
When described electric magnet is in no power state, described oil-in, described first flow, described upper through hole, described
Upper plenum, described throttle orifice, described lower through-hole and described hydraulic cavities are sequentially connected logical, hydraulic oil from described oil-in through described
First flow, described upper through hole enter in the described upper plenum in described Bidirectional buffering, and by described lifting plunger band
Dynamic tappet sharp downward movement.When described damper piston moves to be connected to described lower limit element, it is positioned at described upper plenum
Interior hydraulic oil can only be flowed by described throttle orifice, reduces the movement velocity of described lifting plunger so that described sealing unit
Part contacts with described valve gap lentamente, reduces the impact to described potted component of the described valve gap, improves described potted component
Service life.
When described electric magnet is in "on" position, described hydraulic cavities, described lower through-hole, described lower cavity, described throttling
Hole, described upper through hole, described second runner and described oil return opening are sequentially connected logical, from the gas being applied to described potted component
Body backflow power is applied to described lifting column beyond the Great Wall by described lifting claw, described tappet, and the hydraulic oil in described hydraulic cavities promotes
Described damper piston fast upward motion together.When described damper piston moves to be connected to described upper limit element, described
Hydraulic oil in hydraulic cavities can only flow to described oil return opening by described throttle orifice, thus reduces the motion of described lifting plunger
Speed so that described potted component contacts with described valve seat lentamente, reduces the impact to described potted component of the described valve seat,
Improve the service life of described potted component.
It is preferred that described control valve also has a valve body, a valve seat and a spool, described valve body has an oil-in, institute
The oil-in of the oil-in and described shell of stating valve body is connected, and described spool is connected to described armature, the valve of described control valve
Cover for seat is located at one end of described spool and is arranged in described valve body, and described valve body is provided with a control mouth, and described control mouth connects
In described upper through hole；
The other end of described spool is provided with a boss, and the left end of described boss and right-hand member are respectively provided with the conical surface, described valve body and
Also having the conical surface on the valve seat of described control valve, the conical surface of the left end of described boss is relative with the conical surface of the valve seat of described control valve
Arranging, the conical surface of the right-hand member of described boss is oppositely arranged with the conical surface of described valve body；
When described electric magnet is in no power state, the valve seat of the conical surface of the left end of described boss and described control valve
Taper-face contact, the conical surface of the right-hand member of described boss separates with the conical surface of described valve body, and the conical surface of the right-hand member of described boss is with described
It is formed with one first gap between the conical surface of valve body, between described control mouth and described first gap, forms described first flow；
When described electric magnet is in "on" position, the cone of the valve seat of the conical surface of the left end of described boss and described control valve
Face separates, the conical surface of the right-hand member of described boss and the taper-face contact of described valve body, the conical surface of the left end of described boss and described control
It is formed with one second gap between the conical surface of the valve seat of valve processed, between described control mouth and described second gap, forms described second
Runner.
Match formation guiding and sealing with hole on described valve body in one end of described spool.By described boss and described valve
Body, the relative position of described valve seat, just can control described first flow and the company of described second runner the most reliably, easily
Logical, conveniently described Compressor Valve control system is controlled.
It is preferred that described Compressor Valve control system also includes that a check valve, described check valve are located at described
In the oil-in of valve body, described check valve is connected to described spool.
It is preferred that described check valve includes a valve seat, a cylindrical baffle valve and a spring, the valve seat of described check valve is sheathed
In one end of described cylindrical baffle valve, the other end of described cylindrical baffle valve is located at by described spring, and described cylindrical baffle valve connects
In described spool.
When hydraulic oil flows to described control valve direction from described oil-in, hydraulic coupling overcomes the elastic force of described spring to make
Described cylindrical baffle valve is opened, and flows to described control valve by the hole of described check valve.When the pressure of described check valve lower end is big
During pressure at described oil-in, described closed check valve, hydraulic oil cannot from the lower end of described check valve flow to described in enter
Hydraulic fluid port.It is to say, when described control valve no power, the hydraulic coupling of hydraulic oil make described potted component open, due to backflow
The effect of power there is a possibility that the pressure pressure more than hydraulic system of described lifting its upper end, but the most described check valve is
Through closing, the hydraulic oil of described lifting its upper end is in a dead space, act on backflow power on described potted component without
Method makes described lifting plunger move upward so that described inlet valve is in stable open position.
It is preferred that described Compressor Valve control system also includes that a flow nipple, described flow nipple are located at described
In the oil-in of shell.
In the case of the buffering effect of described potted component meets use condition, by adjusting the size of described flow nipple
Described potted component speed during contacting with the described valve seat or valve gap of inlet valve can be reduced further, it is possible to more
Realize well the protection to described potted component.
On the basis of meeting common sense in the field, above-mentioned each optimum condition, can combination in any, obtain this utility model each the most relatively
Good example.
Positive progressive effect of the present utility model is:
Compressor Valve control system in this utility model is provided with Bidirectional buffering, it is possible to make to seal
Element is rapid movement before contact valve seat or valve gap, and when soon touching valve seat or valve gap, speed reduces, and finally makes described
Potted component contacts with described valve seat or described valve gap lentamente, decreases the impact to described potted component, effectively protects
Described potted component, improves the life-span of described Compressor Valve control system；Meanwhile, improve described piston type
The control accuracy of compressor valve control system.
Accompanying drawing explanation
Fig. 1 is the structural representation of the Compressor Valve control system of this utility model one preferred embodiment.
Fig. 2 is the partial enlargement structural representation of part A in Fig. 1.
Fig. 3 is the partial enlargement structural representation of part B in Fig. 2.
Fig. 4 be this utility model one preferred embodiment Compressor Valve control system in the structure of damper piston
Schematic diagram.
Fig. 5 be this utility model one preferred embodiment Compressor Valve control system in the structure of fairlead show
It is intended to.
Fig. 6 is the partial enlargement structural representation of C portion in Fig. 1.
Description of reference numerals:
1: shell
11: oil-in
2: control valve
21: electric magnet
22: armature
23: valve body
24: valve seat
25: spool
26: oil return opening
27: boss
28: control mouth
3: inlet valve
31: potted component
32: valve seat
33: valve gap
4: tappet
5: Bidirectional buffering
51: sleeve pipe
52: lifting plunger
53: lower limit element
54: fairlead
541: first annular groove
542: positioning through hole
55: upper limit element
551: taper is spigot joint
56: damper piston
561: throttle orifice
57: hydraulic cavities
58: positioning component
581: annular spring
582: steel ball
583: the second cannelures
59: support platform
6: lifting claw
7: check valve
71: valve seat
72: cylindrical baffle valve
73: spring
8: flow nipple
Detailed description of the invention
Name preferred embodiment, and combine accompanying drawing and become apparent from intactly illustrating this utility model.
In description of the present utility model, it is to be understood that term " on ", D score, "left", "right", " top ", " end ",
Orientation or the position relationship of the instruction such as " top ", " bottom " they are based on orientation shown in the drawings or position relationship, merely to just
Describe in description this utility model and simplification rather than indicate or imply that the device of indication or element must have specific side
Position, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
As it is shown in figure 1, Compressor Valve control system includes shell 1, control valve 2, inlet valve 3, tappet 4 and double
To buffer unit 5, control valve 2 is provided with in shell 1, and Bidirectional buffering 5 is located between control valve 2 and tappet 4, the one of tappet 4
End is connected to Bidirectional buffering 5, the other end is connected to inlet valve 3.
Wherein, as it is shown in figure 1, shell 1 has oil-in 11 and an oil-out, oil-in 11 is used for being connected to hydraulic pressure
Source, described oil-out is used for being connected to a fuel tank；Control valve 2 has electric magnet 21, armature 22, valve body 23, valve seat 24, spool
25, oil return opening 26 and boss 27, electric magnet 21 and armature 22 are oppositely arranged, and valve seat 24 is sheathed on one end of spool 25 and is arranged in
Valve body 23, valve body 23 is provided with a control mouth 28, and armature 22 is connected to the other end of spool 25, oil return opening 26 be connected to described in go out
Hydraulic fluid port, the left end of boss 27 and right-hand member are respectively provided with on the conical surface, valve body 23 and valve seat 24 also has the conical surface, the cone of the left end of boss 27
Face is oppositely arranged with the conical surface of valve seat 24, and the conical surface of the right-hand member of boss 27 is oppositely arranged with the conical surface of valve body 23.
When electric magnet 21 is energized, electric magnet 21 and armature 22 are attracted；When electric magnet 21 no power, electric magnet 21 with
A gap it is formed with between armature 22.
When electric magnet 21 no power, the conical surface of the left end of boss 27 and the taper-face contact of valve seat 24, the right-hand member of boss 27
The conical surface separate with the conical surface of valve body 23, be formed between one first between the conical surface and the conical surface of valve body 23 of the right-hand member of boss 27
Gap, controls to be formed between mouth 28 and described first gap first flow；When electric magnet 21 no power, the cone of the left end of boss 27
Face separates with the conical surface of valve seat 24, the conical surface of the right-hand member of boss 27 and the taper-face contact of valve body 23, the conical surface of the left end of boss 27
And it is formed with one second gap between the conical surface of valve seat 24, controls to form described second between mouth 28 and described second gap
Road.
As it is shown in figure 1, inlet valve 3 has potted component 31, valve seat 32 and valve gap 33, potted component 31 is positioned at valve seat 32 He
Between valve gap 33；One end of tappet 4 acts on potted component 31 by lifting claw 6.When potted component 31 contacts with valve gap 33
Time, inlet valve 3 is opened；When potted component 31 contacts with valve seat 32, inlet valve 3 cuts out.
As depicted in figs. 1 and 2, Bidirectional buffering 5 includes sleeve pipe 51, Buffer Unit and an executive component, described slow
Rushing assembly to be arranged in sleeve pipe 51, described executive component is slidedly arranged in sleeve pipe 51.Wherein, described executive component is lifting plunger
52, described Buffer Unit includes lower limit element 53, fairlead 54, upper limit element 55 and damper piston 56.Lower limit element
53 are arranged in sleeve pipe 51, and lower limit element 53 is provided with a lower through-hole, the bottom of lower limit element 53, the inwall of sleeve pipe 51 and
Hydraulic cavities 57 is surrounded between the top of lifting plunger 52.The bottom pressure of fairlead 54 is located at lower limit element 53.Upper limit element
55 are oppositely arranged with lower limit element 53, and the bottom pressure of upper limit element 55 is located at the top of fairlead 54, upper limit element 55
Being provided with through hole on, the top of upper limit element 55 is connected to control mouth 28 by described upper through hole, upper limit element 55 with
Lower limit element 53, fairlead 54 surround an accommodation space.Damper piston 56 is slidedly arranged on guiding along the length direction of fairlead 54
Set 54 is interior and is positioned at described accommodation space, and as shown in Figure 2 and Figure 4, damper piston 56 is provided with a throttle orifice 561.
When the bottom of damper piston 56 is connected to lower limit element 53, the inwall of fairlead 54, the top of damper piston 56
Surround a upper plenum between the bottom of portion and upper limit element 55, control mouth 28, described upper through hole, described upper plenum, throttle orifice
561, described lower through-hole and hydraulic cavities 57 are sequentially connected logical；When the top of damper piston 56 is connected to upper limit element 55, lead
Cavity, hydraulic cavities 57, institute is surrounded between inwall, the bottom of damper piston 56 and the top of lower limit element 53 of set 54
State lower through-hole, described lower cavity, throttle orifice 561, described upper through hole and control mouth 28 and be sequentially connected logical.
Described Buffer Unit also includes positioning component 58, and positioning component 58 is for when the bottom of damper piston 56 is connected to down
During limit element 53, damper piston 56 is positioned lower limit element 53, and for when the top of damper piston 56 is connected to the upper limit
During bit unit 55, damper piston 56 is positioned upper limit element 55.
In the present embodiment, as depicted in figs. 1 and 2, the top of sleeve pipe 51 has the first circular hole, bottom has the second circle
Hole, the diameter of described first circular hole is connected with described second circular hole more than diameter and described first circular hole of described second circular hole
Logical, described first circular hole be connected with described second circular hole place and sleeve pipe 51 inwall between surround support platform 59, lower limit bit
Part 53 is located at support platform 59, and upper limit element 55, fairlead 54, damper piston 56 and positioning component 58 are positioned at described first circular hole
In, lifting plunger 52 is slidedly arranged on described second circular hole.It addition, as depicted in figs. 1 and 2, the top of upper limit element 55 has cone
Shape spigot joint 551, taper spigot joint 551 extends to the outside of sleeve pipe 51, and taper spigot joint 551 is connected with described upper through hole and is connected to
Control mouth 28.
In the present embodiment, as depicted in figs. 1 and 2, fairlead 54 is annular fairlead, and sleeve pipe 51 is annulus,
And described annular fairlead overlap with the centrage of described annulus.As shown in Figures 2 and 3, positioning component 58 includes annular
581, three steel balls 582 of jump ring and two the second cannelures 583.Wherein, as shown in Fig. 2, Fig. 3 and Fig. 5, the outside of fairlead 54
Having first annular groove 541 on face, annular spring 581 is positioned at first annular groove 541；It is logical that fairlead 54 is provided with three location
Hole 542, three positioning through hole 542 are uniformly distributed along the circumferencial direction of fairlead 54, and the aperture of positioning through hole 542 is with first annular
The groove width of groove 541 is suitable, and three steel ball 582 correspondences are arranged in three positioning through hole 542, and each steel ball 582 is connected to
Between the lateral surface of annular spring 581 and damper piston 56.As shown in figs 2-4, two the second cannelures 583 are symmetricly set in
The middle part of the lateral surface of damper piston 56, each second cannelure 583 has a ramp and a lower inclined plane, described ramp
It is symmetrical arranged with described lower inclined plane.When being positioned at the lower inclined plane of the second cannelure 583 of bottom and being connected to steel ball 582, buffering is lived
The top of plug 56 is connected to upper limit element 55；When the ramp of superposed second cannelure 583 is connected to steel ball 582
Time, the bottom of damper piston 56 is connected to lower limit element 53.
As it is shown in figure 1, Compressor Valve control system also includes that entering of valve body 23 be located at by check valve 7, check valve 7
In hydraulic fluid port, check valve 7 is connected to the spool 25 of control valve 2.As shown in figures 1 to 6, check valve 7 includes valve seat 71, cylindrical baffle
Valve 72 and spring 73, the valve seat 71 of check valve 7 is sheathed on one end of cylindrical baffle valve 72, and cylindrical baffle valve 72 is located at by spring 73
The other end, cylindrical baffle valve 72 is connected to control valve 2.
When hydraulic oil flows to control valve 2 direction from oil-in 11, hydraulic coupling overcomes the elastic force of spring 73 to make cylinder keep off
Plate valve 72 is opened, by the hole flow direction control valve 2 of check valve 7.When the pressure of check valve 7 lower end is more than the pressure at oil-in 11
Time, check valve 7 closes, and hydraulic oil cannot flow to oil-in 11 from the lower end of check valve 7.It is to say, when control valve 2 is obstructed
When electricity, the hydraulic coupling of hydraulic oil make potted component 31 open, owing to the effect of backflow power there is a possibility that lifting plunger 52 upper end
Pressure is more than the pressure of hydraulic system, but now check valve 7 has been switched off, and the hydraulic oil of lifting plunger 52 upper end is in one
In dead space, act on the backflow power on potted component 31 and lifting plunger 52 cannot be made to move upward so that inlet valve 3 is in stable
Open position.
As it is shown in figure 1, Compressor Valve control system also includes that oil-in 11 is located at by flow nipple 8, flow nipple 8
In.In the case of the buffering effect of potted component 31 meets use condition, by adjusting being sized to further of flow nipple 8
Reduce the potted component 31 speed during contacting with the valve seat 32 or valve gap 33 of inlet valve 3, it is possible to it is right to be better achieved
The protection of potted component 31.
In the present embodiment, as it is shown in figure 1, flow nipple 8 is arranged in the oil-in 11 of shell 1, valve is located at by check valve 7
In the oil-in of body 23, the position of flow nipple 8 upper, the position of check valve 7 under.The hydraulic oil elder generation warp entered from oil-in 11
After crossing flow nipple 8, then arrive the top of cylindrical baffle valve 72, back down cylindrical baffle oil-feed.It addition, the latus rectum of flow nipple 8 is permissible
Different application according to Compressor Valve control system requires to arrange flexibly.
In the present embodiment, when electric magnet 21 is in no power state, the spool 25 of control valve 2 is under elastic force effect
It is in limit on the left position, the conical surface of the left end of boss 27 and the taper-face contact of valve seat 24, the conical surface of right-hand member and the conical surface of valve body 23
Separate, control to close between mouth 28 and oil return opening 26 to be connected with oil-in 11；Hydraulic oil is introduced, by control from oil-in 11
The hydraulic oil that donsole 28 flows into promotes damper piston 56 to move downward, and displacement produced by damper piston 56 makes damper piston 56
The oil pressure of lower end increases and then promotes lifting plunger 52, tappet 4 and lifting claw 6 rapid movement downwardly together；When damper piston 56
Bottom when being connected to lower limit element 53, i.e. when damper piston 56 moves to lower limit position, enter into from controlling mouth 28
Hydraulic oil in the hydraulic cavities 57 of lifting plunger 52 upper end can only be flowed by the throttle orifice 561 on damper piston 56, thus limits
Make the movement velocity of lifting plunger 52 so that potted component 31 slowly contacts with valve gap 33, reduce valve gap 33 to sealing unit
The impact of part 31, improves the service life of potted component 31.
When electric magnet 21 is in "on" position, electromagnetic attraction produced by electric magnet 21 and armature 22 overcomes the bullet of spring
Power makes spool 25 be in limit on the right-right-hand limit position, the conical surface of the right-hand member of boss 27 and the taper-face contact of valve body 23, the conical surface of left end and valve
The conical surface of seat 24 separates, and controls to close between mouth 28 and oil-in 11 to be connected with oil return opening 26；Act on the close of inlet valve 3
Backflow power on envelope element 31 acts on lifting plunger 52 by lifting claw 6 and tappet 4, the hydraulic cavities of lifting plunger 52 upper end
Hydraulic oil in 57 promotes damper piston 56 fast upward motion together；When the top of damper piston 56 is connected to upper limit element
When 55, i.e. when damper piston 56 moves to upper extreme position, the hydraulic oil of lifting plunger 52 upper end can only pass through damper piston
The throttle orifice 561 of 56 flows to oil return opening 26, thus limits the movement velocity of lifting plunger 52 so that potted component 31 and valve seat
32 slowly contact, and reduce the valve seat 32 impact to potted component 31, improve the service life of potted component 31.
Although the foregoing describing detailed description of the invention of the present utility model, it will be appreciated by those of skill in the art that
This is merely illustrative of, and protection domain of the present utility model is defined by the appended claims.Those skilled in the art
On the premise of without departing substantially from principle of the present utility model and essence, these embodiments can be made various changes or modifications,
But these changes and amendment each fall within protection domain of the present utility model.
Claims (10)
1. a Bidirectional buffering, for Compressor Valve control system, it is characterised in that described bidirectional buffering fills
Putting and include sleeve, a Buffer Unit and an executive component, described Buffer Unit is arranged in described sleeve pipe, described executive component
Being slidedly arranged in described sleeve pipe, wherein, described Buffer Unit includes:
Limit element once, is arranged in described sleeve pipe, and described lower limit element is provided with a lower through-hole, described lower limit element
Bottom, the inwall of described sleeve pipe and the top of described executive component between surround a hydraulic cavities；
One fairlead, the bottom pressure of described fairlead is located at described lower limit element；
One upper limit element, is oppositely arranged with described lower limit element, and the bottom pressure of described upper limit element is located at described guiding
The top of set, described upper limit element is provided with through hole on, and the top of described upper limit element is used for by described upper through hole
It is connected to hydraulic power source, between described upper limit element and described lower limit element, described fairlead, surrounds an accommodation space；
One damper piston, in being slidedly arranged on described fairlead along the length direction of described fairlead and be positioned at described accommodation space,
Described damper piston is provided with a throttle orifice；
Wherein, when the bottom of described damper piston is connected to described lower limit element, the inwall of described fairlead, described buffering
A upper plenum, described upper through hole, described upper plenum, described joint is surrounded between top and the bottom of described upper limit element of piston
Discharge orifice, described lower through-hole and described hydraulic cavities are sequentially connected logical；When the top of described damper piston is connected to described upper limit bit
During part, surround empty between the inwall of described fairlead, the bottom of described damper piston and the top of described lower limit element
Chamber, described hydraulic cavities, described lower through-hole, described lower cavity, described throttle orifice and described upper through hole are sequentially connected logical；
Described Buffer Unit also includes a positioning component, and described positioning component is for when the bottom of described damper piston is connected to institute
When stating lower limit element, described damper piston is positioned described lower limit element, and for when the top of described damper piston is supported
When being connected to described upper limit element, described damper piston is positioned described upper limit element.
2. Bidirectional buffering as claimed in claim 1, it is characterised in that described positioning component includes:
One annular spring, the lateral surface of described fairlead has a first annular groove, and described annular spring is positioned at described first
In cannelure；
Multiple steel balls, described fairlead is provided with multiple positioning through hole, and multiple described positioning through hole are along the wall of described fairlead
Circumference be uniformly distributed, and the aperture of multiple described positioning through hole is suitable with the groove width of described first annular groove, multiple described
Steel ball correspondence is arranged in multiple described positioning through hole, and each described steel ball is connected to described annular spring and described damper piston
Lateral surface between；
Two second cannelures, are symmetricly set in the middle part of the lateral surface of described damper piston, and each described second cannelure has
One ramp and a lower inclined plane, described ramp is symmetrical arranged with described lower inclined plane；
Wherein, when being positioned at the lower inclined plane of described second cannelure of bottom and being connected to described steel ball, the top of described damper piston
Portion is connected to described upper limit element；When the ramp of superposed described second cannelure is connected to described steel ball, institute
The bottom stating damper piston is connected to described lower limit element.
3. Bidirectional buffering as claimed in claim 2, it is characterised in that described fairlead is annular fairlead, described set
Pipe is annulus, and described annular fairlead overlaps with the centrage of described annulus；Described fairlead is provided with three
Described positioning through hole, three described positioning through hole are uniformly distributed along the circumferencial direction of described fairlead.
4. Bidirectional buffering as claimed in claim 1, it is characterised in that the top of described sleeve pipe have one first circular hole,
Bottom has one second circular hole, and the diameter of described first circular hole is more than the diameter of described second circular hole and described first circular hole and institute
State the second circular hole to be connected, described first circular hole be connected with described second circular hole place and described sleeve pipe inwall between surround one
Supporting platform, described support platform is located at by described lower limit element, described upper limit element, described fairlead, described damper piston and
Described positioning component is positioned at described first circular hole, and described executive component is slidedly arranged on described second circular hole；
It is spigot joint that the top of described upper limit element has a taper, the spigot joint outside extending to described sleeve pipe of described taper, described
Spigot joint and the described upper through hole of taper is connected and for being connected to described hydraulic power source.
5. a Compressor Valve control system, it is characterised in that it includes as described in claim 1-4 any one
Bidirectional buffering.
6. Compressor Valve control system as claimed in claim 5, it is characterised in that described piston compressor gas
Valve control system also includes:
One shell, has an oil-in and an oil-out, and described oil-in is used for being connected to described hydraulic power source, and described oil-out is used
In being connected to a fuel tank；
One control valve, is located in described shell, and described control valve has an electric magnet and an armature, described electric magnet and described rank
Ferrum is oppositely arranged, and when described electric magnet is in "on" position, described electric magnet and described armature are attracted, when described electric magnet
When being in no power state, between described electric magnet and described armature, it is formed with a gap；Described control valve is provided with an oil return
Mouth, a first flow and one second runner, described oil return opening is connected to described oil-out, and described first flow and described second
Do not connect between runner；
One inlet valve, has a potted component, a valve seat and a valve gap, and described potted component is positioned at described valve seat and described valve gap
Between；
One tappet, one end of described tappet acts on described potted component by a lifting claw；
Wherein, described Bidirectional buffering is located between described control valve and described tappet, and the other end of described tappet is connected to
Described executive component, and described executive component is for lifting plunger；
When described electric magnet is in no power state, described oil-in, described first flow, described upper through hole, described overhead
Chamber, described throttle orifice, described lower through-hole and described hydraulic cavities are sequentially connected logical, and described lifting plunger is along the length side of described sleeve pipe
It is connected to described valve gap to moving downwardly to described potted component；
When described electric magnet is in "on" position, described hydraulic cavities, described lower through-hole, described lower cavity, described throttle orifice, institute
Stating through hole, described second runner and described oil return opening and be sequentially connected logical, described lifting plunger is along the length direction of described sleeve pipe
Move up to described potted component and be connected to described valve seat.
7. Compressor Valve control system as claimed in claim 6, it is characterised in that described control valve also has
Valve body, a valve seat and a spool, described valve body has an oil-in, the oil-in phase of the oil-in of described valve body and described shell
Connection, described spool is connected to described armature, and the valve seat of described control valve is sheathed on one end of described spool and is arranged in described
Valve body, described valve body is provided with a control mouth, and described control mouth is connected to described upper through hole；
The other end of described spool is provided with a boss, and the left end of described boss and right-hand member are respectively provided with the conical surface, described valve body and described
Also having the conical surface on the valve seat of control valve, the conical surface of the left end of described boss is relative with the conical surface of the valve seat of described control valve to be set
Putting, the conical surface of the right-hand member of described boss is oppositely arranged with the conical surface of described valve body；
When described electric magnet is in no power state, the conical surface of the valve seat of the conical surface of the left end of described boss and described control valve
Contact, the conical surface of the right-hand member of described boss separates with the conical surface of described valve body, the conical surface of the right-hand member of described boss and described valve body
The conical surface between be formed with one first gap, form described first flow between described control mouth and described first gap；
When described electric magnet is in "on" position, the conical surface of the left end of described boss divides with the conical surface of the valve seat of described control valve
From, the conical surface of the right-hand member of described boss and the taper-face contact of described valve body, the conical surface of the left end of described boss and described control valve
Valve seat the conical surface between be formed with one second gap, form described second between described control mouth and described second gap
Road.
8. Compressor Valve control system as claimed in claim 7, it is characterised in that described piston compressor gas
Valve control system also includes that a check valve, described check valve are located in the oil-in of described valve body, and described check valve is connected to institute
State spool.
9. Compressor Valve control system as claimed in claim 8, it is characterised in that described check valve includes a valve
Seat, a cylindrical baffle valve and a spring, the valve seat of described check valve is sheathed on one end of described cylindrical baffle valve, and described spring sets
In the other end of described cylindrical baffle valve, described cylindrical baffle valve is connected to described spool.
10. the Compressor Valve control system as described in claim 6-9 any one, it is characterised in that described work
Plug compressor valve control system also includes that a flow nipple, described flow nipple are located in the oil-in of described shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620418451.1U CN205805870U (en) | 2016-05-10 | 2016-05-10 | Bidirectional buffering and containing its Compressor Valve control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620418451.1U CN205805870U (en) | 2016-05-10 | 2016-05-10 | Bidirectional buffering and containing its Compressor Valve control system |
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| Publication Number | Publication Date |
|---|---|
| CN205805870U true CN205805870U (en) | 2016-12-14 |
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ID=57498718
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620418451.1U Withdrawn - After Issue CN205805870U (en) | 2016-05-10 | 2016-05-10 | Bidirectional buffering and containing its Compressor Valve control system |
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| Country | Link |
|---|---|
| CN (1) | CN205805870U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355369A (en) * | 2016-05-10 | 2017-11-17 | 上海迪瓦流体控制科技有限公司 | Bidirectional buffering and the Compressor Valve control system containing it |
| CN109028325A (en) * | 2018-06-24 | 2018-12-18 | 张冠 | A kind of Water-filtering air cleaner and its formaldehyde minimizing technology |
-
2016
- 2016-05-10 CN CN201620418451.1U patent/CN205805870U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355369A (en) * | 2016-05-10 | 2017-11-17 | 上海迪瓦流体控制科技有限公司 | Bidirectional buffering and the Compressor Valve control system containing it |
| CN107355369B (en) * | 2016-05-10 | 2019-04-12 | 上海迪瓦流体控制科技有限公司 | Bidirectional buffering and Compressor Valve control system containing it |
| CN109028325A (en) * | 2018-06-24 | 2018-12-18 | 张冠 | A kind of Water-filtering air cleaner and its formaldehyde minimizing technology |
| CN109028325B (en) * | 2018-06-24 | 2020-11-24 | 六安永贞匠道机电科技有限公司 | Water filtering type air purifier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161214 Effective date of abandoning: 20190412 |