CN107355369A - Bidirectional buffering and the Compressor Valve control system containing it - Google Patents
Bidirectional buffering and the Compressor Valve control system containing it Download PDFInfo
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- CN107355369A CN107355369A CN201610305294.8A CN201610305294A CN107355369A CN 107355369 A CN107355369 A CN 107355369A CN 201610305294 A CN201610305294 A CN 201610305294A CN 107355369 A CN107355369 A CN 107355369A
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- valve
- limit bit
- bit unit
- hole
- damper piston
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/08—Actuation of distribution members
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- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a kind of Bidirectional buffering and the Compressor Valve control system containing it.The 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 bit unit, guide sleeve, upper limit bit unit, damper piston and positioning component.Lower limit bit unit is arranged in sleeve pipe；The bottom pressure of guide sleeve is located at lower limit bit unit；The bottom pressure of upper limit bit unit is located at guide sleeve；Damper piston is slidedly arranged in guide sleeve along the length direction of guide sleeve, and damper piston is provided with throttle orifice；Damper piston is positioned at the upper limit bit unit when positioning component is used to when the bottom of damper piston is connected to lower limit bit unit be positioned at lower limit bit unit, be connected to upper limit bit unit at the top of damper piston damper piston.The Compressor Valve control system includes the Bidirectional buffering.The present invention can effectively improve the service life and control accuracy of Compressor Valve control system.
Description
Technical field
The present invention relates to a kind of compressor, more particularly to a kind of Bidirectional buffering and the piston type pressure containing it
Contracting machine air valve control system.
Background technology
In order to optimize the regulation of the capacity for the reciprocating compressor that constant rotational speed reaches, generally use is traditional
Backflow control, i.e., the regulation row of the compression travel of at least one inlet valve of wherein each cylinder in compressor
It is kept open in the range of journey, the pressure or backflow power of the gas being pushed back via the inlet valve stayed open
Corresponding inlet valve is closed after the certain stroke of piston is undergone.In order to be accurately controlled the exhaust of compressor
Amount, preferable compressor should be when inlet valve needs to open at defined time point it is quick open, it is necessary to
Quick closedown during closing.In order that inlet valve is quickly opened, the seal of inlet valve need to generally be applied compared with
Big power, and in the closing process of inlet valve process, the backflow power acted on air-breathing valve seal is more
Greatly, this allows for compressor to realize its inlet valve of capacity step-less adjustment during rapidly opened and closed, inhales
The seal of air valve bears greater impact power, causes compressor service life reduction.
The piston compressor discharge capacity step-less adjustment control system that Austrian Hoerbige companies release is being controlled
The conceptual design for reducing potted component impact is introduced during the opening and closing of inlet valve processed, i.e., it is opened in valve
Oil is close in journey by the inlet throttle mouth throttling of the executing agency installed in control valve and closing process to lead to
Damper piston effect in road reduces impact of the potted component opening and closing to bonnet or valve seat.So in inlet valve
Although opening procedure in by throttle certain protective effect is played to the potted component of inlet valve,
But due to having delayed the opening process of inlet valve, and potted component can not be caused to be obtained when fully opening
Damping of shocks between bonnet so that the control accuracy of compressor conveying capacity declines, the life-span of compressor
Reduce；In the closing process of inlet valve, although the damper piston in executing agency can make inlet valve
Quick closedown in most of closing process, and movement velocity can be reduced when seal is close to valve seat, but by
There are inside and outside two sealing surfaces in damper piston, because the leakage factor of sealing surface makes buffering course be difficult to precisely
Control.
To sum up, there is service life and control for Compressor Valve control system of the prior art
The defects of precision is relatively low.
The content of the invention
The technical problem to be solved in the present invention is to overcome Compressor Valve control in the prior art
System processed only possesses the defects of partially unidirectional pooling feature, service life are low, control accuracy is relatively low, there is provided
A kind of Bidirectional buffering and the Compressor Valve control system containing it, realize " opening buffering soon "
The bidirectional buffering function of the air valve sealing element of " quick closing valve buffering ".
The present invention is that solve above-mentioned technical problem by following technical proposals：
A kind of Bidirectional buffering, for Compressor Valve control system, its feature is, institute
Stating Bidirectional buffering includes sleeve, a Buffer Unit and an executive component, and the Buffer Unit card is set
In in described sleeve pipe, the executive component is slidedly arranged in described sleeve pipe, wherein, the Buffer Unit includes：
Limit element once, it is arranged in described sleeve pipe, the lower limit bit unit is provided with a lower through-hole,
One is surrounded between the top of the bottom of the lower limit bit unit, the inwall of described sleeve pipe and the executive component
Hydraulic cavities；
One guide sleeve, the bottom pressure of the guide sleeve are located at the lower limit bit unit；
One upper limit bit unit, it is oppositely arranged with the lower limit bit unit, the bottom pressure of the upper limit bit unit
Located at the top of the guide sleeve, the upper limit bit unit is provided with through hole on one, the upper limit bit unit
Top be used to be connected to hydraulic power source by the upper through hole, the upper limit bit unit and the lower limit bit
An accommodation space is surrounded between part, the guide sleeve；
One damper piston, it is slidedly arranged on along the length direction of the guide sleeve in the guide sleeve and positioned at described
In accommodation space, the damper piston is provided with a throttle orifice；
Wherein, when the bottom of the damper piston is connected to the lower limit bit unit, the guide sleeve
A upper plenum, institute are surrounded between the bottom of inwall, the top of the damper piston and the upper limit bit unit
State through hole, the upper plenum, the throttle orifice, the lower through-hole and the hydraulic cavities be sequentially connected it is logical；
It is the inwall of the guide sleeve, described when the upper limit bit unit is connected at the top of the damper piston
Surround cavity between the bottom of damper piston and the top of the lower limit bit unit, the hydraulic cavities,
The lower through-hole, the lower cavity, the throttle orifice and the upper through hole are sequentially connected logical；
The Buffer Unit also includes a positioning component, and the positioning component is used for when the damper piston
The damper piston is positioned at the lower limit bit unit when bottom is connected to the lower limit bit unit, is used in combination
The damper piston is positioned at when the upper limit bit unit is connected at the top of the damper piston
The upper limit bit unit.
It is preferred that the positioning component includes：
One annular spring, there is a first annular groove, the annular spring on the lateral surface of the guide sleeve
In the first annular groove；
Multiple steel balls, the guide sleeve are provided with multiple positioning through hole, and multiple positioning through hole are described in
The circumference of the wall of guide sleeve is uniformly distributed, and the aperture of multiple positioning through hole with it is described first annular
The groove width of groove is adapted, and multiple steel balls are correspondingly arranged in multiple positioning through hole, each described
Steel ball is connected between the lateral surface of the annular spring and the damper piston；
Two second annular grooves, are symmetricly set in the middle part of the lateral surface of the damper piston, and each described
Second ring groove has a ramp and a lower inclined plane, and the ramp is symmetrical arranged with the lower inclined plane；
Wherein, it is described when the lower inclined plane of second annular groove positioned at bottom is connected to the steel ball
The upper limit bit unit is connected at the top of damper piston；It is upper when superposed second annular groove
When inclined-plane is connected to the steel ball, the bottom of the damper piston is connected to the lower limit bit unit.
Steel ball lateral surface with the damper piston all the time under the elastic force effect of the annular spring
It is close to, and applies a radial load to the damper piston, when the damper piston moves to the steel ball
When being contacted with the ramp or lower inclined plane of second annular groove, the steel ball is applied to the power on the inclined-plane
It can be analyzed to radial load and point to the axial force of the bevel direction, in the presence of axial force, the buffering
Piston moves to axial force direction.For example, when the damper piston under upward external force effect to
During upper motion, the ramp of superposed second annular groove promotes the steel ball to overcome the annular
The elastic force of jump ring moves out, and makes the steel ball with being located at described in bottom when the damper piston moves to
During the lower inclined plane contact of the second annular groove, the upward effect of axial thrust load that the steel ball is applied to lower inclined plane makes
Motion is finally resisted against the upper limit bit unit to the damper piston upwards.After upward external force disappears,
Because this axial thrust load is also present and acts on the damper piston, so that the damper piston one
Directly it is maintained at the position for being resisted against the upper limit bit unit.
It is preferred that the guide sleeve is annular guide sleeve, described sleeve pipe is ring sleeve, and the annular
Guide sleeve overlaps with the center line of the ring sleeve；The guide sleeve is provided with three positioning through hole,
Circumferencial direction of three positioning through hole along the guide sleeve is uniformly distributed.
It is preferred that the top of described sleeve pipe with one first circular hole, bottom with one second circular hole, it is described
The diameter of first circular hole is more than the diameter of second circular hole and first circular hole and second circular hole
It is connected, first circular hole is connected between place and the inwall of described sleeve pipe with second circular hole to be surrounded
One supporting table, the lower limit bit unit are located at the supporting table, the upper limit bit unit, the guide sleeve,
The damper piston and the positioning component are located in first circular hole, and the executive component is slidedly arranged on institute
State the second circular hole；
There is a taper to connect mouth at the top of the upper limit bit unit, and the taper connects mouth and extends to described sleeve pipe
Outside, the taper connects mouth and is connected with the upper through hole and is used to be connected to the hydraulic power source.
The present invention also provides a kind of Compressor Valve control system, and its feature is that it is included such as
Upper described Bidirectional buffering.
It is preferred that the Compressor Valve control system also includes：
One shell, there is an oil inlet and an oil-out, the oil inlet is used to be connected to the hydraulic power source,
The oil-out is used to be connected to a fuel tank；
One control valve, in the shell, the control valve has an electromagnet and an armature, described
Electromagnet and the armature are oppositely arranged, when the electromagnet is in "on" position, the electromagnet and
The armature is attracted, when the electromagnet is in obstructed electricity condition, the electromagnet and the armature
Between formed with a gap；The control valve is provided with an oil return opening, a first flow and a second flow channel,
The oil return opening is connected to the oil-out, and is not connected between the first flow and the second flow channel；
One inlet valve, there is a potted component, a valve seat and a bonnet, the potted component is positioned at described
Between valve seat and the bonnet；
One tappet, one end of the tappet act on the potted component by a lifting claw；
Wherein, the Bidirectional buffering is located between the control valve and the tappet, the tappet
The other end is connected to the executive component, and the executive component is lifting plunger；
When the electromagnet is in obstructed electricity condition, the oil inlet, the first flow, it is described on
Through hole, the upper plenum, the throttle orifice, the lower through-hole and the hydraulic cavities are sequentially connected logical, institute
State length direction of the lifting plunger along described sleeve pipe and move downwardly to the potted component and be connected to the valve
Lid；
When the electromagnet is in "on" position, the hydraulic cavities, the lower through-hole, the lower cavity,
The throttle orifice, the upper through hole, the second flow channel and the oil return opening be sequentially connected it is logical, it is described
Length direction of the lifting plunger along described sleeve pipe moves up to the potted component and is connected to the valve seat.
When the electromagnet is in obstructed electricity condition, the oil inlet, the first flow, it is described on
Through hole, the upper plenum, the throttle orifice, the lower through-hole and the hydraulic cavities are sequentially connected logical, liquid
Force feed enters in the Bidirectional buffering from the oil inlet by the first flow, the upper through hole
The upper plenum in, and pass through it is described lifting plunger drive tappet sharp downward movement.When the buffering
To when being connected to the lower limit bit unit, the hydraulic oil in the upper plenum can only pass through piston movement
The throttle orifice flowing, reduce the movement velocity of the lifting plunger so that the potted component is slow
Ground contacts with the bonnet, reduces impact of the bonnet to the potted component, improves described close
Seal the service life of element.
When the electromagnet is in "on" position, the hydraulic cavities, the lower through-hole, the lower cavity,
The throttle orifice, the upper through hole, the second flow channel and the oil return opening be sequentially connected it is logical, from work
The gas backstreaming power used on the potted component is applied to the liter by the lifting claw, the tappet
Drop on plunger, the hydraulic oil in the hydraulic cavities promotes damper piston fast upward motion together.When
The damper piston moves to when being connected to the upper limit bit unit, and the hydraulic oil in the hydraulic cavities can only
The oil return opening is flowed to by the throttle orifice, so as to reduce the movement velocity of the lifting plunger, made
Obtain the potted component slowly to contact with the valve seat, reduce the valve seat to the potted component
Impact, improve the service life of the potted component.
It is preferred that the control valve also has a valve body, a valve seat and a valve element, the valve body has one
Oil inlet, the oil inlet of the valve body are connected with the oil inlet of the shell, and the valve element is connected to institute
Armature is stated, the valve seat of the control valve is sheathed on one end of the valve element and is arranged in the valve body, described
Valve body is provided with a control mouth, and the control mouth is connected to the upper through hole；
The other end of the valve element is provided with a boss, and the left end and right-hand member of the boss are respectively provided with the conical surface, institute
Stating also has the conical surface on valve body and the valve seat of the control valve, the conical surface of the left end of the boss and the control
The conical surface of the valve seat of valve processed is oppositely arranged, and the conical surface of the right-hand member of the boss is relative with the conical surface of the valve body
Set；
When the electromagnet is in obstructed electricity condition, the conical surface of the left end of the boss and the control valve
Valve seat taper-face contact, the conical surface of the right-hand member of the boss separates with the conical surface of the valve body, described convex
Formed with one first gap, the control mouth and institute between the conical surface of the conical surface of the right-hand member of platform and the valve body
State and form the first flow between the first gap；
When the electromagnet is in "on" position, the conical surface of the left end of the boss and the control valve
The conical surface separation of valve seat, the taper-face contact of the conical surface of the right-hand member of the boss and the valve body, the boss
Left end the conical surface and the control valve valve seat the conical surface between formed with one second gap, the control
The second flow channel is formed between mouth and second gap.
One end of the valve element is engaged to form guiding and sealing with hole on the valve body.Pass through the boss
With the relative position of the valve body, the valve seat, just can more reliable, easily control described first-class
Road connects with the second flow channel, convenient that the Compressor Valve control system is controlled.
It is preferred that the Compressor Valve control system also includes a check valve, the check valve
In the oil inlet of the valve body, the check valve is connected to the valve element.
It is preferred that the check valve includes a valve seat, a cylindrical baffle valve and a spring, the check valve
Valve seat be sheathed on one end of the cylindrical baffle valve, the spring is another located at the cylindrical baffle valve
End, the cylindrical baffle valve are connected to the valve element.
When hydraulic oil flows from the oil inlet to the control valve direction, hydraulic coupling overcomes the spring
Elastic force open the cylindrical baffle valve, the control valve is flowed to by the hole of the check valve.Work as institute
State check valve lower end pressure be more than the oil inlet at pressure when, the closed check valve, hydraulic oil
The oil inlet can not be flowed to from the lower end of the check valve.That is, when the control valve no power,
When the hydraulic coupling of hydraulic oil makes the potted component opening, because the effect for the power that flows back is there is a possibility that the liter
The pressure for dropping its upper end is more than the pressure of hydraulic system, but now the check valve has been switched off, institute
The hydraulic oil for stating lifting its upper end is in a dead space, the backflow power acted on the potted component
The lifting plunger can not be made to move upwards so that the inlet valve is in stable open position.
It is preferred that the Compressor Valve control system also includes a flow nipple, the flow nipple
In the oil inlet of the shell.
In the case where the buffering effect of the potted component meets use condition, by adjusting the throttling
The potted component that is sized to further reduce of mouth contacts in the valve seat or bonnet with inlet valve
During speed, the protection to the potted component can be better achieved.
On the basis of common sense in the field is met, above-mentioned each optimum condition, it can be combined, produce this hair
Bright each preferred embodiments.
The positive effect of the present invention is：
Bidirectional buffering is provided with Compressor Valve control system in the present invention, is enabled to
Potted component quickly moves before contact valve seat or bonnet, and when soon touching valve seat or bonnet, speed drops
It is low, finally the potted component is slowly contacted with the valve seat or the bonnet, reduced to institute
State the impact of potted component, be effectively protected the potted component, improve the piston compressor
The life-span of air valve control system；Meanwhile improve the control of the Compressor Valve control system
Precision.
Brief description of the drawings
Fig. 1 is the structural representation of the Compressor Valve control system of a preferred embodiment of the present invention.
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 is damper piston in the Compressor Valve control system of a preferred embodiment of the present invention
Structural representation.
Fig. 5 be a preferred embodiment of the present invention Compressor Valve control system in guide sleeve knot
Structure schematic diagram.
Fig. 6 is the partial enlargement structural representation of C portion in Fig. 1.
Description of reference numerals：
1：Shell
11：Oil inlet
2：Control valve
21：Electromagnet
22：Armature
23：Valve body
24：Valve seat
25：Valve element
26：Oil return opening
27：Boss
28：Control mouth
3：Inlet valve
31：Potted component
32：Valve seat
33：Bonnet
4：Tappet
5：Bidirectional buffering
51：Sleeve pipe
52：Lift plunger
53：Lower limit bit unit
54：Guide sleeve
541：First annular groove
542：Positioning through hole
55：Upper limit bit unit
551：Taper connects mouth
56：Damper piston
561：Throttle orifice
57：Hydraulic cavities
58：Positioning component
581：Annular spring
582：Steel ball
583：Second annular groove
59：Supporting table
6：Lifting claw
7：Check valve
71：Valve seat
72：Cylindrical baffle valve
73：Spring
8：Flow nipple
Embodiment
Name preferred embodiment, and become apparent from intactly illustrating the present invention with reference to accompanying drawing.
In the description of the invention, it is to be understood that term " on ", " under ", " left side ",
The orientation or position relationship of the instruction such as " right side ", " top ", " bottom ", " top ", " bottom " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, and
It is not instruction or implies that signified device or element there must be specific orientation, with specific azimuth configuration
And operation, therefore be not considered as limiting the invention.
As shown in figure 1, Compressor Valve control system includes shell 1, control valve 2, air-breathing
Valve 3, tappet 4 and Bidirectional buffering 5, control valve 2 are provided with shell 1, Bidirectional buffering 5
Between control valve 2 and tappet 4, one end of tappet 4 is connected to Bidirectional buffering 5, the other end
It is connected to inlet valve 3.
Wherein, as shown in figure 1, shell 1 has an oil inlet 11 and an oil-out, oil inlet 11 is used
In being connected to hydraulic power source, the oil-out is used to be connected to a fuel tank；Control valve 2 have electromagnet 21,
Armature 22, valve body 23, valve seat 24, valve element 25, oil return opening 26 and boss 27, electromagnet 21 and rank
Iron 22 is oppositely arranged, and valve seat 24 is sheathed on one end of valve element 25 and is arranged in valve body 23, valve body 23
A control mouth 28 is provided with, armature 22 is connected to the other end of valve element 25, and oil return opening 26 is connected to institute
Oil-out is stated, the left end and right-hand member of boss 27 are respectively provided with the conical surface, also had on valve body 23 and valve seat 24
The conical surface, the conical surface of the conical surface and valve seat 24 of the left end of boss 27 are oppositely arranged, the right-hand member of boss 27
The conical surface of the conical surface and valve body 23 is oppositely arranged.
When electromagnet 21 is powered, electromagnet 21 and armature 22 are attracted；When the no power of electromagnet 21
When, formed with a gap between electromagnet 21 and armature 22.
When 21 no power of electromagnet, the conical surface of the left end of boss 27 and the taper-face contact of valve seat 24,
The conical surface of the right-hand member of boss 27 separates with the conical surface of valve body 23, the conical surface and valve body of the right-hand member of boss 27
Formed with one first gap between 23 conical surface, first is formed between control mouth 28 and first gap
Runner；When 21 no power of electromagnet, the conical surface of the left end of boss 27 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 and valve seat of the left end of boss 27
Described in being formed formed with one second gap between 24 conical surface, between control mouth 28 and second gap
Second flow channel.
As shown in figure 1, inlet valve 3 has potted component 31, valve seat 32 and bonnet 33, potted component
31 between valve seat 32 and bonnet 33；One end of tappet 4 acts on potted component by lifting claw 6
31.When potted component 31 is in contact with bonnet 33, inlet valve 3 is opened；When potted component 31 with
When valve seat 32 is in contact, inlet valve 3 is closed.
As depicted in figs. 1 and 2, Bidirectional buffering 5 includes sleeve pipe 51, a Buffer Unit and one performs
Element, the Buffer Unit are arranged in sleeve pipe 51, and the executive component is slidedly arranged in sleeve pipe 51.Its
In, the executive component is lifting plunger 52, and the Buffer Unit includes lower limit bit unit 53, is oriented to
Set 54, upper limit bit unit 55 and damper piston 56.Lower limit bit unit 53 is arranged in sleeve pipe 51, under
Limit element 53 is provided with a lower through-hole, the bottom of lower limit bit unit 53, the inwall and liter of sleeve pipe 51
Hydraulic cavities 57 are surrounded between the top of drop plunger 52.The bottom pressure of guide sleeve 54 is located at lower limit bit unit
53.Upper limit bit unit 55 is oppositely arranged with lower limit bit unit 53, and the bottom pressure of upper limit bit unit 55 is set
In the top of guide sleeve 54, upper limit bit unit 55 is provided with through hole on one, the top of upper limit bit unit 55
Portion is connected to control mouth 28, upper limit bit unit 55 and lower limit bit unit 53, guiding by the upper through hole
Set 54 surrounds an accommodation space.Length direction of the damper piston 56 along guide sleeve 54 is slidedly arranged on guide sleeve
In 54 and in the accommodation space, as shown in Figure 2 and Figure 4, damper piston 56 is provided with a section
Discharge orifice 561.
When the bottom of damper piston 56 is connected to lower limit bit unit 53, the inwall of guide sleeve 54, delay
Rush between the top of piston 56 and the bottom of upper limit bit unit 55 and surround a upper plenum, control mouth 28, institute
State through hole, the upper plenum, throttle orifice 561, the lower through-hole and hydraulic cavities 57 be sequentially connected it is logical；
When the top of damper piston 56 is connected to upper limit bit unit 55, the inwall of guide sleeve 54, buffering are lived
Surround cavity between the bottom of plug 56 and the top of lower limit bit unit 53, hydraulic cavities 57, it is described under
Through hole, the lower cavity, throttle orifice 561, the upper through hole and control mouth 28 are sequentially connected logical.
The Buffer Unit also includes positioning component 58, and positioning component 58 is used for when the bottom of damper piston 56
Damper piston 56 is positioned at lower limit bit unit 53 when portion is connected to lower limit bit unit 53, and for when slow
Rush and damper piston 56 is positioned at the upper limit bit unit when top of piston 56 is connected to upper limit bit unit 55
55。
In the present embodiment, as depicted in figs. 1 and 2, the top of sleeve pipe 51 have the first circular hole,
Bottom has the second circular hole, and the diameter of first circular hole is more than the diameter of second circular hole and described the
One circular hole is connected with second circular hole, and first circular hole is connected place with second circular hole with covering
Supporting table 59 is surrounded between the inwall of pipe 51, lower limit bit unit 53 is located at supporting table 59, upper limit bit
Part 55, guide sleeve 54, damper piston 56 and positioning component 58 are located in first circular hole, lifting
Plunger 52 is slidedly arranged on second circular hole.In addition, as depicted in figs. 1 and 2, upper limit bit unit 55
There is taper to connect mouth 551 at top, and taper connects the outside that mouth 551 extends to sleeve pipe 51, and taper connects mouth 551
It is connected with the upper through hole and is connected to control mouth 28.
In the present embodiment, as depicted in figs. 1 and 2, guide sleeve 54 is annular guide sleeve, sleeve pipe
51 be ring sleeve, and the annular guide sleeve overlaps with the center line of the ring sleeve.Such as Fig. 2
Shown in Fig. 3, positioning component 58 includes 581, three steel balls 582 of annular spring and two second annulars
Groove 583.Wherein, as shown in Fig. 2, Fig. 3 and Fig. 5, there is the first ring on the lateral surface of guide sleeve 54
Shape groove 541, annular spring 581 are located in first annular groove 541；Guide sleeve 54 is provided with three positioning
Through hole 542, circumferencial direction of three positioning through hole 542 along guide sleeve 54 are uniformly distributed, positioning through hole
542 aperture is adapted with the groove width of first annular groove 541, and three steel balls 582 are corresponding to be arranged in three
In positioning through hole 542, each steel ball 582 is connected to the outer of annular spring 581 and damper piston 56
Between side.As shown in figs 2-4, two the second annular grooves 583 are symmetricly set in damper piston 56
Lateral surface middle part, each second annular groove 583 has a ramp and a lower inclined plane, it is described on
Inclined-plane is symmetrical arranged with the lower inclined plane.When the lower inclined plane of the second annular groove 583 positioned at bottom is connected to
During steel ball 582, the top of damper piston 56 is connected to upper limit bit unit 55；When superposed second
When the ramp of annular groove 583 is connected to steel ball 582, the bottom of damper piston 56 is connected to lower limit
Element 53.
As shown in figure 1, Compressor Valve control system also includes check valve 7, check valve 7 is set
In in the oil inlet of valve body 23, check valve 7 is connected to the valve element 25 of control valve 2.Such as Fig. 1 and Fig. 6
Shown, check valve 7 includes valve seat 71, cylindrical baffle valve 72 and spring 73, the valve seat 71 of check valve 7
One end of cylindrical baffle valve 72 is sheathed on, spring 73 is located at the other end of cylindrical baffle valve 72, cylinder
Flapper valve 72 is connected to control valve 2.
When hydraulic oil flows from oil inlet 11 to the direction of control valve 2, hydraulic coupling overcomes the bullet of spring 73
Power opens cylindrical baffle valve 72, passes through the hole flow direction control valve 2 of check valve 7.When the lower end of check valve 7
Pressure be more than oil inlet 11 at pressure when, check valve 7 is closed, and hydraulic oil can not be from check valve 7
Lower end flow to oil inlet 11.That is, when the hydraulic coupling of the no power of control valve 2, hydraulic oil make it is close
When sealing the opening of element 31, because the effect of backflow power is there is a possibility that the pressure of lifting plunger 52 upper end is more than
The pressure of hydraulic system, but now check valve 7 has been switched off, the hydraulic oil of lifting plunger 52 upper end
In a dead space, the backflow power acted on potted component 31 can not be such that lifting plunger 52 transports upwards
It is dynamic so that inlet valve 3 is in stable open position.
As shown in figure 1, Compressor Valve control system also includes flow nipple 8, flow nipple 8 is set
In in oil inlet 11.In the case where the buffering effect of potted component 31 meets use condition, pass through tune
Being sized to of whole flow nipple 8 further reduces potted component 31 in the valve seat 32 or valve with inlet valve 3
Speed during the contact of lid 33, can be better achieved the protection to potted component 31.
In the present embodiment, as shown in figure 1, flow nipple 8 is arranged in the oil inlet 11 of shell 1,
Check valve 7 is in the oil inlet of valve body 23, and the position of flow nipple 8 is in upper, the position of check valve 7
Under.After the hydraulic oil entered from oil inlet 11 first passes through flow nipple 8, then reach cylindrical baffle valve 72
Top, top open cylindrical baffle oil-feed.In addition, the latus rectum of flow nipple 8 can be according to piston compressor
The different application requirement of air valve control system is flexibly set.
In the present embodiment, when electromagnet 21 is in obstructed electricity condition, the valve element 25 of control valve 2
Be in limit on the left position under elastic force effect, 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 separates with the conical surface of valve body 23, is closed between control mouth 28 and oil return opening 26, with entering
Hydraulic fluid port 11 is connected；Hydraulic oil is introduced from oil inlet 11, the hydraulic oil flowed into by control mouth 28 pushes away
Dynamic damper piston 56 moves downward, and displacement caused by damper piston 56 causes the lower end of damper piston 56
Oil pressure increase and then promote the quick motion downwardly together of lifting plunger 52, tappet 4 and lifting claw 6；When
When the bottom of damper piston 56 is connected to lower limit bit unit 53, i.e., when damper piston 56 moves to lower pole
During extreme position, the hydraulic oil in the hydraulic cavities 57 for entering lifting plunger 52 upper end from control mouth 28 is only
It can be flowed by the throttle orifice 561 on damper piston 56, so as to limit the motion speed of lifting plunger 52
Degree so that potted component 31 slowly contacts with bonnet 33, reduces bonnet 33 to potted component 31
Impact, improve the service life of potted component 31.
When electromagnet 21 is in "on" position, electromagnet 21 and electromagnetic attraction caused by armature 22
Overcoming the elastic force of spring makes valve element 25 be in limit on the right-right-hand limit position, the conical surface and the valve body 23 of the right-hand member of boss 27
Taper-face contact, the conical surface of left end separated with the conical surface of valve seat 24, control mouth 28 and oil inlet 11 it
Between close, be connected with oil return opening 26；The backflow power acted on the potted component 31 of inlet valve 3 is led to
Cross lifting claw 6 and tappet 4 is acted on lifting plunger 52, the hydraulic cavities 57 of lifting plunger 52 upper end
In hydraulic oil promote the fast upward motion together of damper piston 56；When the top of damper piston 56 abuts
When upper limit bit unit 55, i.e., when damper piston 56 moves to upper extreme position, lift plunger 52
The hydraulic oil of upper end can only flow to oil return opening 26 by the throttle orifice 561 of damper piston 56, so as to limit
The movement velocity of lifting plunger 52 so that potted component 31 slowly contacts with valve seat 32, reduce
Impact of the valve seat 32 to potted component 31, improve the service life of potted component 31.
Although the foregoing describing the embodiment of the present invention, those skilled in the art should manage
Solution, this is merely illustrative of, and protection scope of the present invention is defined by the appended claims.Ability
The technical staff in domain, can be to these embodiments on the premise of without departing substantially from the principle and essence of the present invention
Various changes or modifications are made, but these changes and modification each fall within protection scope of the present invention.
Claims (10)
- A kind of 1. Bidirectional buffering, for Compressor Valve control system, it is characterised in that The Bidirectional buffering includes sleeve, a Buffer Unit and an executive component, the Buffer Unit card In described sleeve pipe, the executive component is slidedly arranged in described sleeve pipe, wherein, the Buffer Unit bag Include：Limit element once, it is arranged in described sleeve pipe, the lower limit bit unit is provided with a lower through-hole, One is surrounded between the top of the bottom of the lower limit bit unit, the inwall of described sleeve pipe and the executive component Hydraulic cavities；One guide sleeve, the bottom pressure of the guide sleeve are located at the lower limit bit unit；One upper limit bit unit, it is oppositely arranged with the lower limit bit unit, the bottom pressure of the upper limit bit unit Located at the top of the guide sleeve, the upper limit bit unit is provided with through hole on one, the upper limit bit unit Top be used to be connected to hydraulic power source by the upper through hole, the upper limit bit unit and the lower limit bit An accommodation space is surrounded between part, the guide sleeve；One damper piston, it is slidedly arranged on along the length direction of the guide sleeve in the guide sleeve and positioned at described In accommodation space, the damper piston is provided with a throttle orifice；Wherein, when the bottom of the damper piston is connected to the lower limit bit unit, the guide sleeve A upper plenum, institute are surrounded between the bottom of inwall, the top of the damper piston and the upper limit bit unit State through hole, the upper plenum, the throttle orifice, the lower through-hole and the hydraulic cavities be sequentially connected it is logical； It is the inwall of the guide sleeve, described when the upper limit bit unit is connected at the top of the damper piston Surround cavity between the bottom of damper piston and the top of the lower limit bit unit, the hydraulic cavities, The lower through-hole, the lower cavity, the throttle orifice and the upper through hole are sequentially connected logical；The Buffer Unit also includes a positioning component, and the positioning component is used for when the damper piston The damper piston is positioned at the lower limit bit unit when bottom is connected to the lower limit bit unit, is used in combination The damper piston is positioned at when the upper limit bit unit is connected at the top of the damper piston The upper limit bit unit.
- 2. Bidirectional buffering as claimed in claim 1, it is characterised in that the positioning component bag Include：One annular spring, there is a first annular groove, the annular spring on the lateral surface of the guide sleeve In the first annular groove；Multiple steel balls, the guide sleeve are provided with multiple positioning through hole, and multiple positioning through hole are described in The circumference of the wall of guide sleeve is uniformly distributed, and the aperture of multiple positioning through hole with it is described first annular The groove width of groove is adapted, and multiple steel balls are correspondingly arranged in multiple positioning through hole, each described Steel ball is connected between the lateral surface of the annular spring and the damper piston；Two second annular grooves, are symmetricly set in the middle part of the lateral surface of the damper piston, and each described Second ring groove has a ramp and a lower inclined plane, and the ramp is symmetrical arranged with the lower inclined plane；Wherein, it is described when the lower inclined plane of second annular groove positioned at bottom is connected to the steel ball The upper limit bit unit is connected at the top of damper piston；It is upper when superposed second annular groove When inclined-plane is connected to the steel ball, the bottom of the damper piston is connected to the lower limit bit unit.
- 3. Bidirectional buffering as claimed in claim 2, it is characterised in that the guide sleeve is ring Shape guide sleeve, described sleeve pipe are ring sleeve, and the center of the annular guide sleeve and the ring sleeve Line overlaps；The guide sleeve is provided with three positioning through hole, and three positioning through hole are led described in It is uniformly distributed to the circumferencial direction of set.
- 4. Bidirectional buffering as claimed in claim 1, it is characterised in that the top of described sleeve pipe It is more than described second with one second circular hole, the diameter of first circular hole with one first circular hole, bottom The diameter of circular hole and first circular hole is connected with second circular hole, first circular hole and described the Two circular holes, which are connected between place and the inwall of described sleeve pipe, surrounds a supporting table, and the lower limit bit unit is located at The supporting table, the upper limit bit unit, the guide sleeve, the damper piston and the positioning component In first circular hole, the executive component is slidedly arranged on second circular hole；There is a taper to connect mouth at the top of the upper limit bit unit, and the taper connects mouth and extends to described sleeve pipe Outside, the taper connects mouth and is connected with the upper through hole and is used to be connected to the hydraulic power source.
- 5. a kind of Compressor Valve control system, it is characterised in that it includes such as claim Bidirectional buffering described in 1-4 any one.
- 6. Compressor Valve control system as claimed in claim 5, it is characterised in that institute Stating Compressor Valve control system also includes：One shell, there is an oil inlet and an oil-out, the oil inlet is used to be connected to the hydraulic power source, The oil-out is used to be connected to a fuel tank；One control valve, in the shell, the control valve has an electromagnet and an armature, described Electromagnet and the armature are oppositely arranged, when the electromagnet is in "on" position, the electromagnet and The armature is attracted, when the electromagnet is in obstructed electricity condition, the electromagnet and the armature Between formed with a gap；The control valve is provided with an oil return opening, a first flow and a second flow channel, The oil return opening is connected to the oil-out, and is not connected between the first flow and the second flow channel；One inlet valve, there is a potted component, a valve seat and a bonnet, the potted component is positioned at described Between valve seat and the bonnet；One tappet, one end of the tappet act on the potted component by a lifting claw；Wherein, the Bidirectional buffering is located between the control valve and the tappet, the tappet The other end is connected to the executive component, and the executive component is lifting plunger；When the electromagnet is in obstructed electricity condition, the oil inlet, the first flow, it is described on Through hole, the upper plenum, the throttle orifice, the lower through-hole and the hydraulic cavities are sequentially connected logical, institute State length direction of the lifting plunger along described sleeve pipe and move downwardly to the potted component and be connected to the valve Lid；When the electromagnet is in "on" position, the hydraulic cavities, the lower through-hole, the lower cavity, The throttle orifice, the upper through hole, the second flow channel and the oil return opening be sequentially connected it is logical, it is described Length direction of the lifting plunger along described sleeve pipe moves up to the potted component and is connected to the valve seat.
- 7. Compressor Valve control system as claimed in claim 6, it is characterised in that institute Stating control valve also has a valve body, a valve seat and a valve element, and the valve body has an oil inlet, the valve The oil inlet of body is connected with the oil inlet of the shell, and the valve element is connected to the armature, the control The valve seat of valve processed is sheathed on one end of the valve element and is arranged in the valve body, and the valve body is provided with a control Donsole, the control mouth are connected to the upper through hole；The other end of the valve element is provided with a boss, and the left end and right-hand member of the boss are respectively provided with the conical surface, institute Stating also has the conical surface on valve body and the valve seat of the control valve, the conical surface of the left end of the boss and the control The conical surface of the valve seat of valve processed is oppositely arranged, and the conical surface of the right-hand member of the boss is relative with the conical surface of the valve body Set；When the electromagnet is in obstructed electricity condition, the conical surface of the left end of the boss and the control valve Valve seat taper-face contact, the conical surface of the right-hand member of the boss separates with the conical surface of the valve body, described convex Formed with one first gap, the control mouth and institute between the conical surface of the conical surface of the right-hand member of platform and the valve body State and form the first flow between the first gap；When the electromagnet is in "on" position, the conical surface of the left end of the boss and the control valve The conical surface separation of valve seat, the taper-face contact of the conical surface of the right-hand member of the boss and the valve body, the boss Left end the conical surface and the control valve valve seat the conical surface between formed with one second gap, the control The second flow channel is formed between mouth and second gap.
- 8. Compressor Valve control system as claimed in claim 7, it is characterised in that institute Stating Compressor Valve control system also includes a check valve, and the check valve is located at the valve body In oil inlet, the check valve is connected to the valve element.
- 9. Compressor Valve control system as claimed in claim 8, it is characterised in that institute Stating check valve includes a valve seat, a cylindrical baffle valve and a spring, and the valve seat of the check valve is sheathed on institute One end of cylindrical baffle valve is stated, the spring is located at the other end of the cylindrical baffle valve, the cylinder gear Plate valve is connected to the valve element.
- 10. the Compressor Valve control system as described in claim 6-9 any one, it is special Sign is that the Compressor Valve control system also includes a flow nipple, and the flow nipple is located at In the oil inlet of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610305294.8A CN107355369B (en) | 2016-05-10 | 2016-05-10 | Bidirectional buffering and Compressor Valve control system containing it |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610305294.8A CN107355369B (en) | 2016-05-10 | 2016-05-10 | Bidirectional buffering and Compressor Valve control system containing it |
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| CN107355369A true CN107355369A (en) | 2017-11-17 |
| CN107355369B CN107355369B (en) | 2019-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610305294.8A Active CN107355369B (en) | 2016-05-10 | 2016-05-10 | Bidirectional buffering and Compressor Valve control system containing it |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110778490A (en) * | 2019-11-11 | 2020-02-11 | 无锡康茨压缩机配件与***有限公司 | Stepless air quantity regulating air valve operation method and hydraulic damping device thereof |
| CN113187720A (en) * | 2021-02-04 | 2021-07-30 | 上海维驿投资管理有限公司 | Flow pump |
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| DE2526200A1 (en) * | 1974-06-14 | 1975-12-18 | Taisan Industrial Co | ELECTROMAGNETIC PUMP |
| US20020155011A1 (en) * | 2001-03-01 | 2002-10-24 | Rolf Hartnagel | Metering pump device |
| CN1379183A (en) * | 2001-04-04 | 2002-11-13 | 赫尔比格压缩机技术服务有限公司 | Circular disk valve of piston type compressor |
| CN104583590A (en) * | 2012-08-28 | 2015-04-29 | 帕斯卡工程株式会社 | Compressed air driven reciprocating piston hydraulic pump |
| CN205805870U (en) * | 2016-05-10 | 2016-12-14 | 上海迪瓦流体控制科技有限公司 | Bidirectional buffering and containing its Compressor Valve control system |
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2016
- 2016-05-10 CN CN201610305294.8A patent/CN107355369B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2526200A1 (en) * | 1974-06-14 | 1975-12-18 | Taisan Industrial Co | ELECTROMAGNETIC PUMP |
| US20020155011A1 (en) * | 2001-03-01 | 2002-10-24 | Rolf Hartnagel | Metering pump device |
| CN1379183A (en) * | 2001-04-04 | 2002-11-13 | 赫尔比格压缩机技术服务有限公司 | Circular disk valve of piston type compressor |
| CN104583590A (en) * | 2012-08-28 | 2015-04-29 | 帕斯卡工程株式会社 | Compressed air driven reciprocating piston hydraulic pump |
| CN205805870U (en) * | 2016-05-10 | 2016-12-14 | 上海迪瓦流体控制科技有限公司 | Bidirectional buffering and containing its Compressor Valve control system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110778490A (en) * | 2019-11-11 | 2020-02-11 | 无锡康茨压缩机配件与***有限公司 | Stepless air quantity regulating air valve operation method and hydraulic damping device thereof |
| CN113187720A (en) * | 2021-02-04 | 2021-07-30 | 上海维驿投资管理有限公司 | Flow pump |
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| Publication number | Publication date |
|---|---|
| CN107355369B (en) | 2019-04-12 |
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