CN209539385U - A kind of liquid sucking-discharging structure, emulsion pump and hydraulic system - Google Patents
A kind of liquid sucking-discharging structure, emulsion pump and hydraulic system Download PDFInfo
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- CN209539385U CN209539385U CN201920165360.5U CN201920165360U CN209539385U CN 209539385 U CN209539385 U CN 209539385U CN 201920165360 U CN201920165360 U CN 201920165360U CN 209539385 U CN209539385 U CN 209539385U
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Abstract
The utility model provides a kind of liquid sucking-discharging structure, emulsion pump and hydraulic system, wherein liquid sucking-discharging structure includes: ontology；Liquid sucting valve is set on ontology, at the liquid sucting port of imbibition chamber, is connect by imbibition pipeline with liquid case, has the open state for being connected to imbibition chamber with liquid case, and the closed state for disconnecting imbibition chamber and liquid case；Tapping valve is set on ontology, at the leakage fluid dram of imbibition chamber, has the open state for being connected to imbibition chamber with outside, and makes imbibition chamber and the external closed state disconnected；Control structure, suitable for controlling the work of liquid sucting valve, in unloaded state, control structure control liquid sucting valve is in the open state, so that the liquid in imbibition chamber is back to liquid case by liquid sucting valve.In the utility model, by the setting of control structure, the unloading drain for realizing emulsion pump greatly reduces production cost so that the structure of hydraulic system is simpler.
Description
Technical field
The utility model relates to emulsion pump technical fields, and in particular to a kind of liquid sucking-discharging structure, emulsion pump and hydraulic
System.
Background technique
Fully-mechanized mining working hydraulic system is the important equipment in underground coal mine production comprising hydraulic bracket system and feed flow
System, the effect of hydraulic support are to follow coalcutter coal cutting and in time follow-up movement closely, to guarantee face roof support coal seam simultaneously
It is normal to promote；Liquid-supplying system provides power for hydraulic bracket system, mainly includes emulsion pump, liquid case and is set to emulsion
Pump the feather valve at leakage fluid dram.
Wherein, emulsion pump is mainly made of motor, crankshaft rod structure, plunger 01, liquid sucting valve 02 and tapping valve 03, such as
Shown in Fig. 9 and 10, the imbibition spool 021 that control opens or closes state is separately provided on liquid sucting valve 02 and tapping valve 03
With drain spool 031.Load (liquid sucking-discharging) process of emulsion pump is as follows: motor drives plunger 01 past by crankshaft rod structure
Multiple mobile, when plunger 01 is mobile to left direction as shown in Figure 9,04 space of imbibition chamber becomes larger to form negative pressure, imbibition spool
021 is moved to the left under the action of imbibition pressure, at this point, liquid sucting valve 02 is in an open state, draws emulsion from liquid case, and drain
Spool 031 remains off under the action of spring and extraneous hydraulic coupling；When plunger 01 is to right direction as shown in Figure 10
When mobile, 04 space of imbibition chamber becomes smaller to form positive pressure, and imbibition spool 021 moves right under the active force of 04 emulsion of imbibition chamber
It is dynamic, so that liquid sucting valve 02 is closed, at this point, drain spool 031 moves up under the active force of 04 emulsion of imbibition chamber, emulsion
Feather valve is expelled to from the leakage fluid dram of emulsion pump.The high pressure feed flow being connected to the leakage fluid dram of emulsion pump is provided in feather valve
Channel and unloading back flow channel, and high pressure liquid feeding channel and unload back flow channel to open and close state opposite；Feather valve is in load shape
When state, unloading back flow channel is closed, high pressure liquid feeding channel is opened, and emulsion is through high pressure liquid feeding channel from the high pressure feed flow of feather valve
Mouth is input to hydraulic bracket system, so that hydraulic support be given to provide power；When hydraulic support is failure to actuate, since emulsion pump is held
Continuation of insurance is held for liquid status, and hydraulic bracket system pressure can increase, and when pressure is more than preset value, can be unloaded by sensor feedback
Valve is carried, the high pressure liquid feeding channel of feather valve is closed, and unloading back flow channel switch, feather valve is in unloaded state, and emulsion pump is defeated
Highly pressurised liquid out flows back into liquid case by unloading liquid back pipe road.
Feather valve is essential device in hydraulic system, but existing unloading valve arrangement is more complicated, is produced into
This height, and the failure rate of feather valve is highest in the accessory of emulsion pump, so that maintenance and the production cost of liquid-supplying system
It is high.
In addition, for different hydraulic bracket system and the hydraulic bracket system of different service stages, required emulsion pump
The emulsification flow quantity of offer is also different, generallys use frequency converter in the prior art to realize the change of flow, i.e. frequency converter changes
The revolving speed of motor to change the reciprocating movement speed of plunger, namely realizes the variation of flow by changing liquid sucking-discharging speed,
But frequency converter is at high cost, so that the production cost of liquid-supplying system is higher.
Utility model content
Therefore, the technical problem to be solved by the present invention is to overcome, structure is complicated, raw for liquid-supplying system in the prior art
Technological deficiency at high cost is produced, to provide the liquid sucking-discharging structure that a kind of structure is simple, production cost is low, is provided with the liquid sucking-discharging
The emulsion pump of structure, and it is provided with the hydraulic system of the emulsion pump.
For this purpose, the utility model provides a kind of liquid sucking-discharging structure, comprising:
Ontology is provided with imbibition chamber；
Liquid sucting valve is arranged on the body, and at the liquid sucting port of the imbibition chamber, is connect with liquid case, and having makes institute
The open state that imbibition chamber is connected to the liquid case is stated, and the closed state for disconnecting the imbibition chamber and the liquid case；
Tapping valve is arranged on the body, and at the leakage fluid dram of the imbibition chamber, having makes the imbibition chamber and outer
The open state of portion's connection, and make the imbibition chamber and the external closed state disconnected；
Control structure is connect with the liquid sucting valve, and in unloaded state, the control structure controls the liquid sucting valve and is in
Open state, so that the liquid in the imbibition chamber is back to the liquid case by liquid sucting valve.
As a preferred embodiment, the liquid sucting valve includes the imbibition spool connecting with the control structure, the control
The movement of imbibition spool described in structure control, so that the liquid sucting valve is in the open state.
As a preferred embodiment, the control structure includes,
Application valve body, it is interior that there is the first sap cavity；
Control piece is mounted on the application valve body, connect with external signal；
Infusion pipeline is connected to first sap cavity and outside, is provided on the infusion pipeline and is controlled by the control piece
Communicating valve, the communicating valve be used for control first sap cavity and outside be connected to or closing；
Piston is controlled, is arranged in first sap cavity, is connect with the imbibition spool, by the communicating valve to described
When being passed through in the first sap cavity or liquid is discharged, the control piston reciprocating is mobile to drive the imbibition spool mobile.
As a preferred embodiment, there are two the infusion pipeline tools, it is respectively communicated with different external structures, and described defeated
The connectivity part of liquid pipeline and first sap cavity is located at the side far from the imbibition spool of the control piston.
It as a preferred embodiment, further include bias piece, the close institute of one end of the bias piece and the control piston
The side wall for stating imbibition spool offsets, and the other end offsets with the application valve body, provides for the control piston far from the imbibition
The biasing force of spool.
As a preferred embodiment, the liquid sucting valve includes,
Imbibition valve body is fixedly installed at the liquid sucting port of the ontology, have respectively with the imbibition chamber and the liquid case
First valve chamber of connection；
Mounting base is fixed in first valve chamber, and first valve chamber is divided into and is connected to the imbibition chamber
First part, and the second part being connected to the liquid case, form in the mounting base multiple connections first parts and
The first passage of the second part；
Imbibition spool, moves back and forth in the first part, forms multiple cloth that are staggered with the first passage thereon
The second channel set, when imbibition state, the imbibition spool blocks the connectivity part of the first part and the imbibition chamber, described
Second part is connected to by the first passage and the second channel with the imbibition chamber, the imbibition spool and the installation
When seat abuts, the imbibition spool blocks the second channel, disconnects being connected to for the first part and the second part；
Valve rod, one end are connect with imbibition spool, and the other end is connect with the control structure, described in the control structure control
The mobile drive of the valve rod imbibition spool is mobile, and the imbibition spool is made to block the company of the first part and the imbibition chamber
Logical place, or abutted with the mounting base.
It as a preferred embodiment, further include the plunger shaft being connected to the imbibition chamber of setting on the body, and
Plunger in the plunger shaft is set, and the mobile cooperation liquid sucting valve of the plunger changes the air pressure in the imbibition chamber, to open
Or close the tapping valve.
A kind of emulsion pump, including,
Liquid sucking-discharging structure as described above；
Driving assembly is connect with the plunger, and the driving plunger moves back and forth in plunger shaft.
A kind of hydraulic system, including emulsion pump as described above.
It as a preferred embodiment, further include hydraulic bracket system and liquid-supplying system, the liquid-supplying system includes liquid case, with
The emulsion pump of liquid case connection, being arranged side by side in the emulsion pump has multiple liquid sucking-discharging structures, multiple suctions
The leakage fluid dram of drainage structure is connected to by fluid pressure line with hydraulic bracket system, and the infusion pipeline of the liquid sucking-discharging structure has two
A, one of them connect with liquid case, and another one are connect with hydraulic bracket system；
The hydraulic bracket system is also connect with the control structure signal of multiple liquid sucking-discharging structures, so that multiple described
The working condition of liquid sucking-discharging structure is identical or different.
Technical solutions of the utility model have the advantages that
1. liquid sucking-discharging structure provided by the utility model, including liquid sucting valve, tapping valve and the control knot being connect with liquid sucting valve
Structure, liquid sucking-discharging structure tool is there are two state, and one of state is in load, and control structure does not control liquid sucting valve, imbibition chamber
The liquid drawn from liquid case is discharged to body exterior by tapping valve；Another state is the control structure control in unloading
Liquid sucting valve is in the open state, and imbibition chamber can flow back into liquid case again from the liquid drawn in liquid case by liquid sucting valve, at this point,
Tapping valve is in close state, without being expelled to body exterior.The liquid sucking-discharging structure of the utility model has offloading functions, will
When the liquid suction valve is installed in the device that body exterior needs another setting feather valve, it is possible to reduce the setting of feather valve makes
It is simpler to obtain structure, greatly reduces production cost.
2. liquid sucking-discharging structure provided by the utility model, control structure include application valve body, interior to have the first sap cavity；
Control piece is mounted on application valve body, is connect with external signal；Infusion pipeline, is connected to the first sap cavity and outside, on infusion pipeline
Be provided with the communicating valve controlled by control piece, communicating valve be used to control the first sap cavity and outside be connected to or closing；Piston is controlled,
It is arranged in the first sap cavity, is connect with imbibition spool, when being passed through in the first sap cavity or liquid be discharged, the mobile band of control piston reciprocating
Dynamic imbibition spool is mobile.In unloaded state, communicating valve controls the first sap cavity and is passed through liquid, and control piston is mobile, drives imbibition
Spool is mobile, keeps liquid sucting valve in the open state；In stress state, communicating valve controls the first sap cavity and liquid is discharged, to solve
Except the driving to imbibition spool；The structure setting of above-mentioned communicating valve is simple, and production cost is low.
3. liquid sucking-discharging structure provided by the utility model, the side of the close imbibition spool of one end and control piston of bias piece
Wall offsets, and the other end offsets with application valve body, provides the biasing force far from imbibition spool for control piston.Bias piece can buffer
Liquid extends the service life of imbibition spool to the enormous impact force of imbibition spool.
4. liquid sucking-discharging structure provided by the utility model, liquid sucting valve includes imbibition valve body, mounting base, imbibition spool and valve
Bar, valve rod one end are connect with imbibition spool, and the other end is connect with control structure, and control structure controls the mobile drive imbibition of valve rod
Spool is mobile, so that imbibition spool is blocked the connectivity part of first part and imbibition chamber, or abut with mounting base, valve rod and imbibition spool
Have the advantages that structure is simple.
5. liquid sucking-discharging structure provided by the utility model further includes hydraulic bracket system and liquid-supplying system, liquid-supplying system packet
Liquid case is included, the emulsion pump being connected to liquid case, being arranged side by side in emulsion pump there are multiple liquid sucking-discharging structures, and hydraulic bracket system is also
It is connect with the control structure signal of multiple liquid sucking-discharging structures, so that the working condition of multiple liquid sucking-discharging structures is identical or different,
I.e. by the working condition of the multiple liquid sucking-discharging structures of change, export to change emulsion pump to the total flow of hydraulic bracket system,
Structure is simple, and production cost is low.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of liquid sucking-discharging structure imbibition chamber imbibition in unloaded state of the utility model；
Fig. 2 be the utility model liquid sucking-discharging structure in unloaded state structural schematic diagram of the imbibition chamber to liquid case drain；
Fig. 3 is the structural schematic diagram of liquid sucking-discharging structure imbibition chamber imbibition in stress state of the utility model；
Fig. 4 is the liquid sucking-discharging structure structural representation of imbibition chamber to hydraulic system drain in stress state of the utility model
Figure；
Fig. 5 is the structural schematic diagram of the utility model control structure；
Fig. 6 is the structural schematic diagram of emulsion pump；
Fig. 7 is the top view of Fig. 6；
Fig. 8 is the structural schematic diagram that multiple liquid sucking-discharging structures are arranged side by side；
Fig. 9 is the structural schematic diagram of emulsion pump in the prior art imbibition chamber imbibition in stress state；
Figure 10 is the structural schematic diagram of emulsion pump in the prior art imbibition chamber hydraulic system drain in stress state.
Description of symbols: 01, plunger；02, liquid sucting valve；021, imbibition spool；03, tapping valve；031, drain spool；
04, imbibition chamber；
1, ontology；11, imbibition chamber；2, liquid sucting valve；20, imbibition valve body；21, imbibition spool；22, the first valve chamber；23, it installs
Seat；24, first passage；25, second channel；26, valve rod；3, tapping valve；4, communicating valve；40, application valve body；41, the first sap cavity；
42, infusion pipeline；5, piston is controlled；51, bias piece；6, plunger；7, emulsion pump.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Not constituting conflict can be combined with each other.
Embodiment 1
The present embodiment provides a kind of liquid sucking-discharging structures, as shown in Figs. 1-5, including ontology 1, liquid sucting valve 2, tapping valve 3 and control
Structure processed is provided with imbibition chamber 11 in ontology 1, and the liquid sucting port and leakage fluid dram that are connected to imbibition chamber 11, liquid sucting valve 2 are set to
It at the liquid sucting port of ontology 1, is connect by imbibition pipeline with liquid case, liquid sucting valve, which has, is connected to the imbibition chamber 11 with the liquid case
Open state, and the closed state for disconnecting the imbibition chamber 11 with the liquid case；
Tapping valve 3 is set at the leakage fluid dram of ontology 1, and tapping valve 3, which has, opens the imbibition chamber 11 with what outside was connected to
State is opened, and makes the imbibition chamber 11 and the external closed state disconnected；
Control structure is connect with the liquid sucting valve 2, suitable for controlling the work of liquid sucting valve 2；There are two works for liquid sucking-discharging structure tool
Make state: stress state and unloaded state, in stress state, control structure does not control liquid sucting valve 2, and imbibition chamber 11 is from liquid case
The liquid of absorption is discharged to outside ontology 1 by tapping valve 3；In unloaded state, control structure controls liquid sucting valve 2 and is in unlatching
State, imbibition chamber 11 can flow back into liquid case again from the liquid drawn in liquid case by liquid sucting valve 2, at this point, tapping valve 3 is in
Closed state, without being expelled to body exterior.
The liquid sucting valve 2 includes the imbibition spool 21 connecting with the control structure, and the control structure controls the suction
The movement of liquid spool 21, so that the liquid sucting valve 2 is in the open state.
As illustrated in fig. 1 and 2, the control structure includes application valve body 40, interior to have the first sap cavity 41；Control piece, peace
On the application valve body 40, it is connect with external signal；Infusion pipeline 42 is connected to first sap cavity 41 and outside, described
The communicating valve 4 controlled by the control piece is provided on infusion pipeline, the communicating valve is for controlling 41 He of the first sap cavity
External connection or closing；Piston 5 is controlled, is arranged in first sap cavity 41, is connect with the imbibition spool 21, pass through institute
When stating communicating valve 4 and being passed through into first sap cavity 41 or liquid is discharged, the control piston 5, which moves back and forth, drives the imbibition
Spool 21 is mobile.When unloaded state, communicating valve 4 controls the first sap cavity 41 and is passed through liquid, and control piston 5 is mobile, drives liquid sucting valve
Core 21 is mobile, keeps liquid sucting valve 2 in the open state；In stress state, communicating valve 4 controls the first sap cavity 41 and liquid is discharged, from
And release the driving to imbibition spool 21；The structure setting of above-mentioned communicating valve 4 is simple, and production cost is low.
There are two the infusion pipeline 42 tools, is respectively communicated with different external structures, and the infusion pipeline 42 with it is described
The connectivity part of first sap cavity 41 is located at the side far from the imbibition spool 21 of the control piston 5.
In the present embodiment, 42 1 connection hydraulic support pipelines of the infusion pipeline, another connection liquid case, in unloading shape
When state, communicating valve 4 controls the first sap cavity 41 and is connected to hydraulic support pipeline, and the first sap cavity 41 is closed with liquid case, hydraulic pressure stand tube
High-pressure emulsion in road enters the first sap cavity 41, drives imbibition spool 21 mobile by control piston 5, is in liquid sucting valve 2
Open state；In stress state, first sap cavity of the control of communicating valve 4 41 is closed with hydraulic support pipeline, the first sap cavity 41 and liquid
Case is connected to, and the liquid in the first sap cavity 41 is expelled to liquid case, to release the driving to imbibition spool 21.
In the present embodiment, communicating valve can be solenoid valve or hydraulic valve.
As disposable embodiment, control structure includes the cylinder connecting with control piece and is arranged in cylinder one end
It can be with the push rod of control piston driving cooperation.In unloaded state, cylinder passes through push rod drive control piston 5, imbibition spool
21 is mobile, keeps liquid sucting valve 2 in the open state；In stress state, driving of the cylinder deactivation push rod to control piston 5, imbibition
Spool 21 can move back and forth.
It further include bias piece 51, the close imbibition spool 21 of one end of the bias piece 51 and the control piston 5
Side wall offset, the other end offsets with the application valve body 40, provides for the control piston 5 far from the imbibition spool 21
Biasing force.In the present embodiment, bias piece 51 is spring.
As shown in Figure 1, the liquid sucting valve 2 includes imbibition valve body 20, it is fixedly installed at the liquid sucting port of the ontology 1, has
There is the first valve chamber 22 being connected to respectively with the imbibition chamber 11 and the liquid case；Mounting base 23 is fixed at first valve
In chamber 22, divide first valve chamber 22 to the first part to be connected to the imbibition chamber 11, and be connected to the liquid case
Two parts form the first passages 24 of multiple the connection first parts and the second part in the mounting base 23；It inhales
Liquid spool 21, moves back and forth in the first part, forms multiple the to be staggeredly arranged with the first passage 24 thereon
Two channels 25, when imbibition state, the imbibition spool 21 blocks the connectivity part of the first part and the imbibition chamber 11, described
Second part is connected to by the first passage 24 and the second channel 25 with the imbibition chamber 11, the imbibition spool 21 with
When the mounting base 23 abuts, the imbibition spool 21 blocks the second channel 25, disconnects the first part and described the
The connection of two parts；Valve rod 26, one end are connect with imbibition spool 21, and the other end is connect with the control structure, the control knot
The mobile drive imbibition spool 21 that structure controls the valve rod 26 is mobile, and the imbibition spool 21 is made to block the first part
With the connectivity part of the imbibition chamber 11, or abut with the mounting base 23.
Further include the plunger shaft being connected to the imbibition chamber 11 of setting on the body, and is arranged in the plunger shaft
In plunger 6, the mobile cooperation liquid sucting valve 2 of the plunger 6 changes the air pressure in the imbibition chamber 11, to open or close the row
Liquid valve 3.
The working principle of the liquid sucking-discharging structure of the present embodiment is as follows:
When unloaded state:
Communicating valve 4 controls the first sap cavity 41 and is passed through liquid, and control piston 5 is mobile, drives imbibition spool 21 mobile, makes imbibition
Valve 2 is in the open state；
When plunger 6 is mobile to left direction shown in FIG. 1, the space of imbibition chamber 11 becomes larger to form negative pressure, emulsion from
Liquid case successively flows into imbibition chamber 11 through first passage 24, second channel 25, at this point, tapping valve 3 is in off state；
When plunger 6 is mobile to right direction shown in Fig. 4, since liquid sucting valve 2 is still in open state, imbibition chamber 11
In emulsion be successively back to liquid case through second channel 25, first passage 24, at this point, because imbibition chamber in liquid it is not right
Tapping valve applies the power that enough tapping valves are opened, and tapping valve 3 is still in off state.
When stress state:
Communicating valve 4 controls the first sap cavity 41 and liquid is discharged, to release the driving to control piston 5, imbibition spool can
It moves back and forth；
When plunger 6 is mobile to left direction shown in Fig. 3, the space of imbibition chamber 11 becomes larger to form negative pressure, imbibition spool
21 are moved to the left under the action of imbibition pressure, and liquid sucting valve 2 is in an open state, and emulsion is successively logical through first passage 24, second
Road 25 flows into imbibition chamber, at this point, tapping valve 3 is in off state；
When plunger 6 is mobile to right direction shown in Fig. 4,11 space of imbibition chamber becomes smaller to form positive pressure, imbibition spool 21
It is moved right under the active force of 11 emulsion of imbibition chamber to mounting base 23 and is abutted, due to obtaining second channel 25 and first passage
24 are arranged in a staggered manner, and liquid sucting valve 2 is closed, at this point, tapping valve 3 is opened under the active force of imbibition chamber emulsion, emulsion is from emulsification
The leakage fluid dram of liquid pump is discharged.
Embodiment 2
The present embodiment provides a kind of emulsion pumps, as shown in fig. 6, including liquid sucking-discharging structure as described in Example 1；Driving
Component is connect with the plunger 6, and the driving plunger 6 moves back and forth in plunger shaft.Driving assembly includes motor, subtracts
Fast structure, crankshaft, connecting rod slider, by motor drive input shaft, slow down when emulsion pump is run through slowing-down structure, drive bent
Axis rotation, then drive plunger reciprocating through connecting rod slider.
Embodiment 3
The present embodiment provides a kind of hydraulic systems, as described in Fig. 7 and 8, including emulsion pump as described in Example 2.
It further include hydraulic bracket system and liquid-supplying system, the liquid-supplying system includes liquid case, the cream being connected to the liquid case
Change liquid pump 7, being arranged side by side in the emulsion pump 7 has multiple liquid sucking-discharging structures, the drain of multiple liquid sucking-discharging structures
Mouthful be connected to hydraulic bracket system by fluid pressure line, there are two the infusion pipeline of the liquid sucking-discharging structure has, one of them with
Liquid case connection, another one are connect with hydraulic bracket system；The hydraulic bracket system also with multiple liquid sucking-discharging structures
Control structure signal connection so that the working condition of multiple liquid sucking-discharging structures is identical or different, to change emulsion
Pump the flow of output.
In the present embodiment, as shown in figure 8, emulsion pump is five-plunger emulsion pump, including A1, A2 arranged side by side, A3,
This five liquid sucking-discharging structures of A4, A5 can control A1, A2 and be in unloaded state, and A3, A4, A5 are in stress state, emulsify in this way
Liquid pump output flow is the summation of A3, A4, A5.When five liquid sucking-discharging structures are in stress state together, output flow is maximum；
When five liquid sucking-discharging structures are in unloaded state together, output flow is minimum.By the work for controlling multiple liquid sucking-discharging structures
State, to control the flow of emulsion pump output, structure is simple, with the prior art frequency converter come by way of changing flow
It compares, production cost is low.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes among the protection scope created still in the utility model.
Claims (10)
1. a kind of liquid sucking-discharging structure, it is characterised in that: include:
Ontology (1) is provided with imbibition chamber (11)；
Liquid sucting valve (2) is set on the ontology (1), is located at the liquid sucting port of the imbibition chamber (11), is connect with liquid case, is had
There is the open state for being connected to the imbibition chamber (11) with the liquid case, and disconnects the imbibition chamber (11) and the liquid case
Closed state；
Tapping valve (3) is set on the ontology (1), is located at the leakage fluid dram of the imbibition chamber (11), and having makes the imbibition
The open state that chamber (11) is connected to outside, and make the imbibition chamber (11) and the external closed state disconnected；
Control structure is connect with the liquid sucting valve, and in unloaded state, the control structure controls the liquid sucting valve (2) and is in
Open state, so that the liquid in the imbibition chamber (11) is back to the liquid case by liquid sucting valve (2).
2. liquid sucking-discharging structure according to claim 1, which is characterized in that the liquid sucting valve (2) includes tying with the control
The imbibition spool (21) of structure connection, the control structure controls the movement of the imbibition spool (21), so that the liquid sucting valve (2)
It is in the open state.
3. liquid sucking-discharging structure according to claim 2, it is characterised in that: the control structure includes,
Application valve body (40), it is interior that there are the first sap cavity (41)；
Control piece is mounted on the application valve body (40), connect with external signal；
Infusion pipeline (42) is connected to first sap cavity (41) and outside, is provided on the infusion pipeline by the control piece
The communicating valve (4) of control, the communicating valve (4) be used for control first sap cavity (41) and outside be connected to or closing；
It controls piston (5), setting connect with the imbibition spool (21) in first sap cavity (41), passes through the connection
When being passed through in valve (4) the first sap cavity of Xiang Suoshu (41) or liquid is discharged, the control piston (5), which moves back and forth, drives the imbibition
Spool (21) is mobile.
4. liquid sucking-discharging structure according to claim 3, it is characterised in that: there are two infusion pipeline (42) tools, respectively
It is connected to different external structures, and the connectivity part of the infusion pipeline (42) and first sap cavity (41) is located at control work
Fill in the side far from the imbibition spool (21) of (5).
5. liquid sucking-discharging structure according to claim 4, it is characterised in that: further include bias piece (51), the bias piece
(51) one end and the side wall close to the imbibition spool (21) of control piston (5) offset, the other end and the control
Valve body (40) offsets, and provides the biasing force far from the imbibition spool (21) for control piston (5).
6. liquid sucking-discharging structure according to claim 1, it is characterised in that: the liquid sucting valve (2) includes,
Imbibition valve body (20), is fixedly installed at the liquid sucting port of the ontology (1), have respectively with the imbibition chamber (11) and institute
State the first valve chamber (22) of liquid case connection；
Mounting base (23) is fixed in first valve chamber (22), first valve chamber (22) is divided into and the imbibition
The first part of chamber (11) connection, and the second part being connected to the liquid case form multiple companies on the mounting base (23)
Lead to the first passage (24) of the first part and the second part；
Imbibition spool (21), moves back and forth in the first part, forms thereon multiple wrong with the first passage (24)
Open the second channel (25) of arrangement, when imbibition state, the imbibition spool (21) blocks the first part and the imbibition chamber
(11) connectivity part, the second part are connected by the first passage and the second channel (25) and the imbibition chamber (11)
Logical, when the imbibition spool (21) abuts with the mounting base (23), the imbibition spool (21) blocks the second channel
(25), being connected to for the first part and the second part is disconnected；
Valve rod (26), one end are connect with imbibition spool (21), and the other end is connect with the control structure, the control structure control
The mobile drive of the valve rod (26) the imbibition spool (21) is mobile, and the imbibition spool (21) is made to block the first part
With the connectivity part of the imbibition chamber (11), or abut with the mounting base (23).
7. liquid sucking-discharging structure according to any one of claims 1-5, it is characterised in that: further include being arranged in the ontology
On the plunger shaft being connected to the imbibition chamber (11), and the plunger (6) being arranged in the plunger shaft, the plunger (6) moves
Dynamic cooperation liquid sucting valve (2) changes the air pressure in the imbibition chamber (11), to open or close the tapping valve (3).
8. a kind of emulsion pump, it is characterised in that: including,
Such as liquid sucking-discharging structure of any of claims 1-7；
Driving assembly is connect with plunger (6), to drive the plunger (6) to move back and forth in plunger shaft.
9. a kind of hydraulic system, it is characterised in that: including emulsion pump as claimed in claim 8.
10. hydraulic system according to claim 9, it is characterised in that: further include hydraulic bracket system and liquid-supplying system, institute
Stating liquid-supplying system includes liquid case, the emulsion pump (7) being connected to the liquid case, in the emulsion pump (7) be arranged side by side have it is more
The leakage fluid dram of a liquid sucking-discharging structure, multiple liquid sucking-discharging structures is connected to by fluid pressure line with hydraulic bracket system, institute
There are two the infusion pipeline tools for stating liquid sucking-discharging structure, one of them connect with liquid case, and another one and hydraulic bracket system connect
It connects；
The hydraulic bracket system is also connect with the control structure signal of multiple liquid sucking-discharging structures, so that multiple suctions
The working condition of liquid structure is identical or different.
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| CN201920165360.5U CN209539385U (en) | 2019-01-30 | 2019-01-30 | A kind of liquid sucking-discharging structure, emulsion pump and hydraulic system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667610A (en) * | 2019-01-30 | 2019-04-23 | 浙江中煤机械科技有限公司 | A kind of liquid sucking-discharging structure, emulsion pump and hydraulic system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109667610A (en) * | 2019-01-30 | 2019-04-23 | 浙江中煤机械科技有限公司 | A kind of liquid sucking-discharging structure, emulsion pump and hydraulic system |
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