CN110005823B - Driver for coaxial double-valve-core valve - Google Patents
Driver for coaxial double-valve-core valve Download PDFInfo
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- CN110005823B CN110005823B CN201910273577.2A CN201910273577A CN110005823B CN 110005823 B CN110005823 B CN 110005823B CN 201910273577 A CN201910273577 A CN 201910273577A CN 110005823 B CN110005823 B CN 110005823B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
- F16K1/38—Valve members of conical shape
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention provides a driver for a coaxial double-valve-core valve, which comprises an installation frame, a valve body and a valve body, wherein the installation frame is arranged on the valve body; the mounting frame comprises an outer connecting sleeve and an inner connecting sleeve; the inner connecting sleeve is arranged in the outer connecting sleeve. The main driver drives the main valve core of the valve to reciprocate. The auxiliary driver drives the auxiliary valve core of the valve to reciprocate. The main driver is connected to the inner connecting sleeve and drives the inner connecting sleeve to reciprocate in the outer connecting sleeve. The control section is used for controlling the operation states of the main drive and the sub-drive. The invention has the advantages that one driver is provided with the main driver and the auxiliary driver which can respectively control two valve cores with different functions on the valve, so that the two valve cores can independently operate, and further the function switching of the valve can be realized. Each driver can be used independently, so that the throttle valve can be used on a common throttle valve, and the universality is good.
Description
Technical Field
The invention relates to the field of valve automatic control, in particular to a driver for a coaxial double-valve-core valve.
Background
With the development of the valve field, in order to simplify the valve structure and increase the valve function, the valves with multiple functions are integrated into a whole, and therefore, the number of valve cores of the integrated multifunctional valve is increased. Each valve core of the multifunctional valve can realize different functions of the valve, and in order to accurately and automatically control the movement of each valve core, a driver is required to be respectively installed on each valve core. The valve core of the multi-valve core valve can not be driven simultaneously by adopting one driver, so that the function of the valve cannot be realized in an automatic control mode, and further the development of the multifunctional valve is limited. The valve involved in the scheme is a coaxial double-valve-core valve, namely the valve is provided with two valve cores which are coaxially arranged, so that the invention designs a driver for the coaxial double-valve-core valve.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: two valve cores of the coaxial double-valve-core valve can be driven to independently operate through one driver, so that the automatic switching of the functions of the valve is realized, and the installation space of the driver is reduced.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an actuator for a coaxial dual spool valve is provided comprising:
the mounting frame is arranged on the valve; the mounting frame comprises an outer connecting sleeve and an inner connecting sleeve; the inner connecting sleeve is arranged in the outer connecting sleeve.
And the main driver is arranged on the outer connecting sleeve and drives the main valve core of the valve to reciprocate.
And the auxiliary driver is arranged on the inner connecting sleeve and drives the auxiliary valve core of the valve to reciprocate.
The main driver is connected to the inner connecting sleeve and drives the inner connecting sleeve to reciprocate in the outer connecting sleeve.
And the control part is used for controlling the starting and stopping of the main driver and the auxiliary driver.
Preferably, the mounting bracket further comprises a connecting seat connected to the valve; the outer connecting sleeve is arranged at one end, far away from the valve, of the connecting seat.
Preferably, the main driver includes a first power part and a first transmission part, and the first power part is connected to the first transmission part and transmits power thereto; the secondary driver includes a second power part and a second transmission part, and the second power part is connected to the second transmission part and transmits power thereto.
Preferably, the main driver further comprises a first frame plate, the first transmission part is mounted on the first frame plate, and the first frame plate is mounted on the outer connecting sleeve; the first power part is provided with an outer mounting frame which is mounted at the end part of the outer connecting sleeve far away from the valve; the first frame plate is clamped between the outer mounting frame and the outer connecting sleeve. The secondary driver further comprises a second frame plate, the second transmission part is mounted on the second frame plate, and the second frame plate is mounted on the inner connecting sleeve; the second power part is provided with an inner mounting rack which is arranged on the inner connecting sleeve; the second frame plate is clamped between the inner mounting frame and the inner connecting sleeve.
Preferably, the first power part and the second power part each comprise a motor; the first transmission part and the second transmission part are transmission mechanisms consisting of a gear set and a thread transmission pair respectively; the thread transmission pair consists of a nut and a screw; the input end of the gear set is connected with the output end of the motor; the screw rod is installed to the output of gear train.
Preferably, one end of the screw rod of the first transmission part extends towards the inner side of the outer connecting sleeve, and a first sliding plate is installed on the outer side of the nut of the first transmission part; one end of the first sliding plate is connected to the inner wall of the outer connecting sleeve in a sliding mode, and the other end of the first sliding plate is connected to the outer wall of the inner connecting sleeve;
the screw rod one end of the second transmission part extends towards the inner side of the inner connecting sleeve, the second sliding plate is installed on the outer side of the nut of the second transmission part, and the second sliding plate is slidably installed on the inner wall of the inner connecting sleeve.
Preferably, the inner connecting sleeve is provided with a first connecting rod towards the valve end, and the first connecting rod is connected to the main valve core; wherein the first connecting rod is of a tubular structure; and the second sliding plate is provided with a second connecting rod, and the second connecting rod is coaxially arranged in the first connecting rod and is connected with the auxiliary valve core.
Preferably, the inner wall of the outer connecting sleeve and the inner wall of the inner connecting sleeve are respectively provided with a guide groove arranged along the axial direction of the outer connecting sleeve and the inner connecting sleeve; one end of the first sliding plate is arranged in the guide groove on the inner wall of the outer connecting sleeve, and a rolling body is arranged between the guide groove and the first sliding plate; the end part of the second sliding plate is arranged in the guide groove on the inner wall of the inner connecting sleeve, and a rolling body is arranged between the end part of the second sliding plate and the guide groove.
Preferably, a first sleeve is installed between the second connecting rod and the first connecting rod, the outer wall of the first sleeve is fixed on the inner wall of the first connecting rod, and the inner wall of the first sleeve is connected to the outer wall of the second connecting rod in a sliding manner; the first sleeve is a rubber ring structure with a curved cross section.
Preferably, the peripheral wall of the outer connecting sleeve and the peripheral wall of the inner connecting sleeve are respectively provided with a plurality of hole structures, and each hole structure respectively corresponds to a joint of the first power part and the first transmission part, a joint of the second power part and the second transmission part, a joint of the first connecting rod and the main valve core, and a joint of the second connecting rod and the auxiliary valve core.
The invention has the advantages that one driver is provided with the main driver and the auxiliary driver which can respectively control two valve cores with different functions on the valve, so that the two valve cores can independently operate, and further the function switching of the valve can be realized. The output ends of the two drivers can be coaxially arranged, so that the overall size of the drivers is reduced, the placement space is saved, and the drivers and the valves are convenient to assemble and disassemble. The connecting parts between the two drivers are fewer, the connecting structure is simple, and the two drivers can be conveniently assembled, disassembled and maintained. Because each driver can be used independently, therefore, also can be used on ordinary throttle valve, have good commonality.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of an overall assembly structure provided by an embodiment of the present invention;
in the figure: 1-a connecting seat, 2-a ring connecting plate, 3-an outer connecting sleeve, 4-an outer mounting frame, 5-a top cover, 6-an inner connecting sleeve, 7-a first sleeve piece, 8-a second sleeve piece, 9-an inner mounting frame, 100-a main driver, 110-a first power part, 111-a first clamping piece, 120-a first frame plate, 130-a first transmission part, 140-a first sliding plate, 150-a first connecting rod, 200-an auxiliary driver, 210-a second power part, 211-a second clamping piece, 220-a second frame plate, 230-a second transmission part, 240-a second sliding plate, 250-a second connecting rod, 300-a valve, 301-a main valve core, 302-an auxiliary valve core, an a-screw rod, a b-a nut, a c-a gear set and a-a motor.
Detailed Description
The above-described scheme is further illustrated below with reference to specific examples. It is to be understood that these examples are for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention. The conditions used in the examples may be further adjusted according to the conditions of the particular manufacturer, and the conditions not specified are generally the conditions in routine experiments.
In one embodiment, an actuator for a coaxial dual spool valve is provided, which includes a mounting bracket, a main actuator 100 for driving a main spool 301 of a valve 300 to reciprocate, a sub-actuator 200 for driving a sub-spool 302 of the valve 300 to reciprocate, and a control portion for controlling the operating states of the main actuator 100 and the sub-actuator 200.
In order to make the valve 300 more compact, the main valve core 301 and the auxiliary valve core 302 are coaxially arranged and respectively extend to the outside of the valve 300, wherein the main valve core 301 and the auxiliary valve core 302 respectively comprise a valve rod, and in the embodiment, the parts connected with the main valve core 301 and the auxiliary valve core 302 are connected with the valve rod.
To fully illustrate the function of the mounting bracket in the example, the structure and mounting to the valve 300 will be described:
the mounting frame further comprises a connecting seat 1 arranged on the valve 300, one end of the connecting seat 1 is fixed on a valve cover of the valve 300 through a bolt, the other end of the connecting seat 1 is far away from the valve 300, and an outer connecting sleeve 3 is arranged at the end part of the connecting seat 1, wherein the outer connecting sleeve 3 is of a cylindrical structure; in order to facilitate the manufacturing of the whole mounting frame, the assembly and disassembly and the installation of internal parts, the outer connecting sleeve 3 is connected with the connecting seat 1 by the annular connecting plate 2, the outer connecting sleeve and the connecting seat are fixed on two sides of the annular connecting plate 2 by bolts respectively, and the center of the annular connecting plate 2 is provided with a through hole for placing the first connecting rod 150.
In order to fully explain the functions of the main drive 100 and the sub drive 200 in the embodiments, the structure and the installation form thereof will be described:
the control mode and the transmission mode of the main driver 100 and the auxiliary driver 200 are equivalent, and the difference is the difference of the power of the main driver 100 and the auxiliary driver 200, wherein the power of the main driver 100 is larger than that of the auxiliary driver 200; the reason for this is that the fluid throttle force is set by the main spool 301 and the sub-spool 302 of the valve 300.
A main driver 100 including a first power part 110 and a first transmission part 130; the sub driver 200 includes a second power part 210 and a second transmission part 230.
The first power unit 110 and the second power unit 210 respectively include a motor d as a main power source of the main driver 100 or the sub driver 200, the motor d may be a dc brushless motor, and the motor d is electrically connected to a control part for controlling the operation states of the main driver 100 and the sub driver 200, respectively, wherein the control part includes a PLC and an external circuit connected to and supplying power to the main driver 100 and the sub driver 200.
The first transmission part 130 and the second transmission part 230 are transmission mechanisms consisting of a gear set c and a thread transmission pair respectively; the thread transmission pair is composed of a nut b and a screw rod a.
In order to realize the functions of the main driver 100 and the secondary driver 200, the first power part 110 and the first transmission part 130 form a complete power assembly for driving the main valve core 301 to move, and the first power part 110 is connected to the first transmission part 130 and transmits power to the first transmission part 130; similarly, the second power unit 210 is connected to the second transmission unit 230 and transmits power thereto.
In order to explain the connection form of the first power unit 110 and the first transmission unit 130 and the connection form of the second power unit 210 and the second transmission unit 230 in further detail, the following is provided:
connecting the input end of the gear set c to the output end of the motor d through a key; and the output end of the gear set c is connected with the screw a through a key.
In order to explain the arrangement of the gear set c and the connection form with the screw a in more detail, the following are provided:
the gear set c consists of a plurality of gears which are in meshed transmission, the gears comprise a driving gear at the input end of the gear set c and a driven gear at the output end of the gear set c, and a plurality of transition gears which are in meshed transmission are arranged between the driven gear and the driving gear, so that the transmission ratio of the gear set c can be determined through the above, in the embodiment, the transmission ratio is greater than 1, and the gear set c is in speed reduction and lift transmission.
In order to be able to explain in detail the form of arrangement between the main drive 100 and the outer connecting sleeve 3, the following applies:
the main driver 100 further includes a first frame plate 120, the first transmission part 130 is mounted on the first frame plate 120, the first frame plate 120 is mounted on the outer connecting sleeve 3, and it can be known that the first transmission part 130 is mounted on the outer connecting sleeve 3 through the first frame plate 120; in order to fix the main driver 100 more stably, an outer mounting bracket 4 is mounted on the first power part 110, and the outer mounting bracket 4 is covered on the end part of the outer connecting sleeve 3 far away from the valve body 300 through bolts; and the first frame plate 120 is clamped between the outer mount 4 and the outer joint sleeve 3, so that the installation position of the main actuator 100 on the outer joint sleeve 3 can be determined.
To further illustrate the connection form of the gear set c and the screw a of the first transmission part 130 with the first frame plate 120, the following is:
the gears of the gear set c, which are in meshing transmission with each other, are arranged on the first frame plate 120 through rotating shafts respectively, or the gears of the gear set c, which are in meshing transmission with each other, can be arranged on the first frame plate 120 after being arranged on the rack; one end of the screw rod a extends towards the inner side of the outer connecting sleeve 3.
In order to clearly illustrate the connection of the motor d of the first power part 110 to the outer mounting frame 4, the following is:
a first clamping piece 111 is installed on the outer side of the motor d, the first clamping piece 111 is installed on the outer installation frame 4, and the installation positions of the first clamping piece 111 and the outer installation frame 4 can be adjusted through the matching of bolts and nuts, so that the distance between the motor d and the first frame plate 120 can be adjusted, and the installation and adjustment of the first power part 110 and the first transmission part 130 are facilitated; in order to protect the motor d, a top cover 5 is covered on the outer side of the motor d, and the top cover 5 is installed on the outer installation frame 4 through screws.
The above describes the structure of the main actuator 100 and the installation form of the main actuator and the outer connecting sleeve 3, and therefore, the structure of how the main actuator 100 drives the main valve core 301 to reciprocate needs to be described as follows:
a first sliding plate 140 is installed on the outer side of the nut b of the first transmission part 130, one end of the first sliding plate 140 is slidably connected to the inner wall of the outer connecting sleeve 3, an inner connecting sleeve 6 is arranged in the outer connecting sleeve 3, the other end of the first sliding plate 140 is connected to the outer wall of the inner connecting sleeve 6, the connecting sleeve 6 is of a cylindrical structure, and an auxiliary driver 200 is installed on the connecting sleeve 6; a first connecting rod 150 is installed at the end, facing the valve 300, of the inner connecting sleeve 6 through threads, the first connecting rod 150 can be conveniently assembled, disassembled and adjusted through threaded connection, and the first connecting rod 150 is connected to the main valve core 301; since the main spool 301 and the sub-spool 302 of the valve 300 are coaxially disposed, the first link 150 is provided in a tubular structure in order to facilitate the connection of the sub-spool 301 to the sub-actuator 200; therefore, as can be seen from the above description, the first transmission portion 130 passes through the inner connecting sleeve 6 and the first connecting rod 150 and the main valve element 301 mounted on the inner connecting sleeve 6, so as to realize the function of the main actuator 100 driving the main valve element 301 to reciprocate.
For clarity of illustration of the form of mounting between the secondary driver 200 and the inner coupling sleeve 6, the following applies:
the secondary driver 200 further comprises a second frame plate 220, the second transmission part 230 is mounted on the second frame plate 220, and the second frame plate 220 is mounted on the end of the inner connecting sleeve 6 far away from the valve 300; the second power part 210 is provided with an inner mounting bracket 9, and the inner mounting bracket 9 is arranged on the inner connecting sleeve 6; the second frame plate 220 is clamped between the inner mount 9 and the inner joint sleeve 6, and the auxiliary actuator 200 is mounted on the inner joint sleeve 6.
In order to further clarify the connection of the gear set c and the screw a of the second transmission part 230 with the second frame plate 220, the following is:
the gears of the gear set c, which are in meshing transmission with each other, are arranged on the second frame plate 220 through rotating shafts respectively, or the gears of the gear set c, which are in meshing transmission with each other, can be arranged on the second frame plate 220 after being arranged on the rack; one end of the screw rod a extends towards the inner side of the inner connecting sleeve 6.
In order to clearly illustrate the connection form of the motor d of the second power portion 210 and the inner mounting bracket 9, the following is provided:
The above describes the structural form of the sub-driver 200 and the installation form of the inner connecting sleeve 6, and therefore, it is also necessary to describe the structure of how the sub-driver 200 drives the sub-valve core 302 to reciprocate, as follows:
a second sliding plate 240 is arranged on the outer side of the nut b of the second transmission part 230, and the second sliding plate 240 is slidably arranged on the inner wall of the inner connecting sleeve 6; the second slide plate 240 is threadedly mounted with a second link 250, and the second link 250 is coaxially mounted within the first link 150 and connected to the secondary spool 302. Thereby realizing the function that the secondary driver 200 drives the secondary valve core 302 to reciprocate.
As can be seen from the above, the first transmission part 130 is connected to the inner joint housing 6 to which the sub-actuator 200 is mounted, and the first transmission part 130 is indirectly connected to the main spool 301 through the inner joint housing 6, and therefore, it is reasonable to judge,
when the main actuator 100 drives the main valve core 301 to reciprocate, the whole of the sub-actuator 200 also reciprocates synchronously therewith.
In order to realize the circumferential positioning and the axial sliding along the track of the first sliding plate 140 and the circumferential positioning and the axial sliding along the track of the second sliding plate 240, guide grooves are respectively arranged on the inner wall of the outer connecting sleeve 3 and the inner wall of the inner connecting sleeve 6 along the axial direction of the outer connecting sleeve, and one end part of the first sliding plate 140 is arranged in the guide groove on the inner wall of the outer connecting sleeve 3; so that the end of the second sliding plate 240 is positioned in the guide groove of the inner wall of the inner coupling sleeve 6.
In order to reduce the sliding resistance between the first sliding plate 140 and the inner wall of the outer connecting sleeve 3, rolling bodies are arranged between the guide grooves of the inner wall of the outer connecting sleeve 3 and the first sliding plate 140. Similarly, rolling elements are also disposed between the end of the second sliding plate 240 and the guide grooves on the inner wall of the inner connecting sleeve 6.
In order to keep the second connecting rod 250 and the first connecting rod 150 coaxial and stable in movement, a first sleeve 7 is installed between the second connecting rod 250 and the first connecting rod 150, the outer wall of the first sleeve 7 is fixed on the inner wall of the first connecting rod 150, and the inner wall of the first sleeve 7 is slidably connected with the outer wall of the second connecting rod 250. In order to increase the compensation of the second link 250 and the first link 150 and avoid the generation of stress therebetween, the first sleeve 7 may be configured as a rubber ring structure with a curved cross section.
In order to facilitate the connection and adjustment of the first power part 110 and the first transmission part 130 and improve the assembly and disassembly efficiency of the main valve core 301 and the main driver 100, facilitate the connection and adjustment of the second power part 210 and the second transmission part 230 and improve the assembly and disassembly efficiency of the auxiliary driver 200 and the auxiliary valve core 302, a plurality of hole structures are respectively arranged on the peripheral wall of the outer connecting sleeve 3 and the peripheral wall of the inner connecting sleeve 6, and each hole structure respectively corresponds to the connection position of the first power part 110 and the first transmission part 130, the connection position of the second power part 210 and the second transmission part 230, the connection position of the first connecting rod 150 and the main valve core 301 and the connection position of the second connecting rod 250 and the auxiliary valve core 302.
In order to improve the positioning between the outer connecting sleeve 3 and the first connecting rod 150 and the sealing of the end of the outer connecting sleeve 3, a second sleeve 8 is installed in a through hole of the annular connecting plate 2 at the bottom of the outer connecting sleeve 3, the second sleeve 8 is fixed on the inner wall of the through hole, and the first connecting rod 150 is slidably connected to the second sleeve 8.
In order to facilitate the installation and adjustment of the main driver 100 and the main valve core 301 and the installation and adjustment of the auxiliary driver 200 and the auxiliary valve core 302, hand screwing wheels are respectively installed at the shaft ends of the motor d of the first power part 110 and the motor d of the second power part 210, the hand screwing wheels are connected to the output shaft of the motor d, the adjustment of the first connecting rod 150 or the second connecting rod 250 can be realized through the hand screwing wheels, and the usability is improved.
In the specific working process, the whole driver is arranged on the valve 300 through the mounting frame, after the mounting position is adjusted, the first connecting rod 150 is connected with the main valve core 301 of the valve 300, the second connecting rod 250 is connected with the auxiliary valve core 302, the connection can be arranged in a floating connection mode, and stress generated between each connecting rod and each valve core connected correspondingly is avoided.
The valve 300 is a valve with a throttling function and a flow balancing function, and the throttling function is realized mainly by matching the main valve core 301 with the main valve seat; the flow balancing function is mainly realized by matching the auxiliary valve core 302 with the auxiliary valve seat, therefore, in order to automatically realize the function, the driver can simultaneously control the synchronous or asynchronous movement of the two valve cores.
1. When the throttling function is realized, the main valve core 301 and the auxiliary valve core 302 are in a sealed state, the control part controls the main driver 100 to drive the main valve core 301 to reciprocate, the distance between the main valve core 301 and the main valve seat is changed, the main valve core 301 and the auxiliary driver 200 synchronously move to keep the auxiliary valve core 302 and the main valve core 301 static, and therefore throttling and opening and closing of the valve 300 are realized through the change of the opening degree of the main valve core 301 and the main valve seat.
2. When the throttling function is realized, the main valve core 301 and the main valve seat can be in a non-closed state, the auxiliary valve core 302 and the auxiliary valve seat are in a non-closed state, and when the flow between the main valve core 301 and the main valve seat is increased, the control part controls the auxiliary driver 200 to drive the auxiliary valve core 302, so that the opening between the auxiliary valve core 302 and the auxiliary valve seat is reduced, and the control flow balance is realized. In another way of controlling the flow, the main actuator 100 drives the main spool 301 to move in the opposite direction to the sub actuator 200 drives the sub spool 302, so as to achieve the balance of the control flow.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. An actuator for a coaxial dual spool valve, comprising:
the mounting frame is arranged on the valve; the mounting frame comprises an outer connecting sleeve and an inner connecting sleeve; the inner connecting sleeve is arranged in the outer connecting sleeve;
the main driver is arranged on the outer connecting sleeve and drives a main valve core of the valve to reciprocate;
the auxiliary driver is arranged on the inner connecting sleeve and drives an auxiliary valve core of the valve to reciprocate;
the main driver is connected with the inner connecting sleeve and drives the inner connecting sleeve to reciprocate in the outer connecting sleeve;
and the control part is used for controlling the starting and stopping of the main driver and the auxiliary driver.
2. An actuator for a coaxial dual spool valve according to claim 1 wherein the mounting bracket further comprises a connecting seat connected to the valve; the outer connecting sleeve is arranged at one end, far away from the valve, of the connecting seat.
3. The actuator for a coaxial dual spool valve of claim 1, wherein the main actuator includes a first power section and a first transmission section, the first power section being connected to and transmitting power to the first transmission section; the secondary driver includes a second power part and a second transmission part, and the second power part is connected to the second transmission part and transmits power thereto.
4. The actuator for a coaxial dual spool valve according to claim 3, wherein the main actuator further comprises a first frame plate, the first transmission portion being mounted on the first frame plate, the first frame plate being mounted on the outer adapter sleeve; the first power part is provided with an outer mounting frame which is mounted at the end part of the outer connecting sleeve far away from the valve; the first frame plate is clamped between the outer mounting frame and the outer connecting sleeve;
the secondary driver further comprises a second frame plate, the second transmission part is mounted on the second frame plate, and the second frame plate is mounted on the inner connecting sleeve; the second power part is provided with an inner mounting rack which is arranged on the inner connecting sleeve; the second frame plate is clamped between the inner mounting frame and the inner connecting sleeve.
5. The actuator for a coaxial dual spool valve of claim 4, wherein the first and second power sections each comprise a motor; the first transmission part and the second transmission part are transmission mechanisms consisting of a gear set and a thread transmission pair respectively; the thread transmission pair consists of a nut and a screw; the input end of the gear set is connected with the output end of the motor; the screw rod is installed to the output of gear train.
6. The actuator for the coaxial dual-spool valve according to claim 5, wherein one end of the screw of the first transmission part extends to the inner side of the outer connecting sleeve, and a first sliding plate is installed on the outer side of the nut of the first transmission part; one end of the first sliding plate is connected to the inner wall of the outer connecting sleeve in a sliding mode, and the other end of the first sliding plate is connected to the outer wall of the inner connecting sleeve;
the screw rod one end of the second transmission part extends towards the inner side of the inner connecting sleeve, the second sliding plate is installed on the outer side of the nut of the second transmission part, and the second sliding plate is slidably installed on the inner wall of the inner connecting sleeve.
7. An actuator for a coaxial dual spool valve according to claim 6 wherein the inner sleeve mounts a first link toward the valve end, the first link being connected to the main spool; wherein the first connecting rod is of a tubular structure; and the second sliding plate is provided with a second connecting rod, and the second connecting rod is coaxially arranged in the first connecting rod and is connected with the auxiliary valve core.
8. The actuator for the coaxial dual-spool valve according to claim 7, wherein the inner wall of the outer connecting sleeve and the inner wall of the inner connecting sleeve are respectively provided with a guide groove arranged along the axial direction thereof; one end of the first sliding plate is arranged in the guide groove on the inner wall of the outer connecting sleeve, and a rolling body is arranged between the guide groove and the first sliding plate; the end part of the second sliding plate is arranged in the guide groove on the inner wall of the inner connecting sleeve, and a rolling body is arranged between the end part of the second sliding plate and the guide groove.
9. The actuator for a coaxial dual spool valve of claim 8, wherein a first sleeve is mounted between the second link and the first link, the first sleeve outer wall being fixed to the first link inner wall, the first sleeve inner wall being slidably connected to the second link outer wall; wherein the first sleeve is provided with a rubber ring structure with a curved section.
10. The actuator of claim 9, wherein the peripheral wall of the outer connecting sleeve and the peripheral wall of the inner connecting sleeve are respectively provided with a plurality of hole structures, and each hole structure respectively corresponds to a connection point of the first power portion and the first transmission portion, a connection point of the second power portion and the second transmission portion, a connection point of the first connecting rod and the main valve core, and a connection point of the second connecting rod and the auxiliary valve core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910273577.2A CN110005823B (en) | 2019-04-06 | 2019-04-06 | Driver for coaxial double-valve-core valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910273577.2A CN110005823B (en) | 2019-04-06 | 2019-04-06 | Driver for coaxial double-valve-core valve |
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| CN110005823B true CN110005823B (en) | 2020-03-27 |
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| CN111022653B (en) * | 2019-11-18 | 2022-03-22 | 宁波奥克斯电气股份有限公司 | Electronic expansion valve, adjusting method and air conditioner |
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| CN2466445Y (en) * | 2000-10-11 | 2001-12-19 | 陈联芝 | Double valve-rod easy-to-open high-pressure gate valve |
| CN204284527U (en) * | 2014-09-28 | 2015-04-22 | 辉煌水暖集团有限公司 | The control valve of a kind of temperature, the integration of flow spool |
| CN107035874A (en) * | 2017-05-31 | 2017-08-11 | 朱书红 | A kind of sealing valve |
| CN108626427A (en) * | 2018-05-24 | 2018-10-09 | 李祥庆 | A kind of application method of double stub shaft control ball valve |
| CN109323005A (en) * | 2018-12-11 | 2019-02-12 | 雷纳德流体智能科技江苏股份有限公司 | A kind of flow adjustable cut-off valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6929238B2 (en) * | 2000-02-18 | 2005-08-16 | Ga Industries Inc. | Electric motor actuated stop and self-closing check valve |
| US20140283926A1 (en) * | 2013-03-19 | 2014-09-25 | Joshua Duell | Foldable, Double-Block and Bleed Plugging Tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2466445Y (en) * | 2000-10-11 | 2001-12-19 | 陈联芝 | Double valve-rod easy-to-open high-pressure gate valve |
| CN204284527U (en) * | 2014-09-28 | 2015-04-22 | 辉煌水暖集团有限公司 | The control valve of a kind of temperature, the integration of flow spool |
| CN107035874A (en) * | 2017-05-31 | 2017-08-11 | 朱书红 | A kind of sealing valve |
| CN108626427A (en) * | 2018-05-24 | 2018-10-09 | 李祥庆 | A kind of application method of double stub shaft control ball valve |
| CN109323005A (en) * | 2018-12-11 | 2019-02-12 | 雷纳德流体智能科技江苏股份有限公司 | A kind of flow adjustable cut-off valve |
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Effective date of registration: 20200303 Address after: 325608 no.428-15, Xinfeng Road, Hongqiao Town, Leqing City, Wenzhou City, Zhejiang Province Applicant after: Hu Haiming Address before: 114031 122 buildings at Shuguang Road, Lishan District, Anshan City, Liaoning Province Applicant before: Wang Chaohe |
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Effective date of registration: 20220107 Address after: 325100 Sanqiao Industrial Zone, Linlong village, Oubei street, Yongjia County, Wenzhou City, Zhejiang Province (within panda General Machinery Group Co., Ltd.) Patentee after: Zhejiang Longzheng automatic control valve technology Co.,Ltd. Address before: No. 428-15, Xinfeng Road, Hongqiao Town, Yueqing City, Wenzhou City, Zhejiang Province 325608 Patentee before: Hu Haiming |