CN110173568B - Miniature automatic regulating valve - Google Patents
Miniature automatic regulating valve Download PDFInfo
- Publication number
- CN110173568B CN110173568B CN201910446518.0A CN201910446518A CN110173568B CN 110173568 B CN110173568 B CN 110173568B CN 201910446518 A CN201910446518 A CN 201910446518A CN 110173568 B CN110173568 B CN 110173568B
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- valve
- ring
- pipe
- fixed pipe
- throttle plate
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 16
- 230000008878 coupling Effects 0.000 claims abstract description 28
- 238000010168 coupling process Methods 0.000 claims abstract description 28
- 238000005859 coupling reaction Methods 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 7
- 229920001971 elastomer Polymers 0.000 claims description 6
- 239000000806 elastomer Substances 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 239000012530 fluid Substances 0.000 description 17
- 239000010687 lubricating oil Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000005489 elastic deformation Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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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
-
- 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
- F16K1/46—Attachment of sealing rings
- F16K1/465—Attachment of sealing rings to the valve seats
-
- 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
- F16K1/54—Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
-
- 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
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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
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
- F16K31/043—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
-
- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Flow Control (AREA)
Abstract
The invention discloses a miniature automatic regulating valve which comprises a metering valve, a servo motor and a flow guide pipe, wherein the metering valve is connected with the flow guide pipe, a U-shaped support frame and an elastic coupling are respectively arranged between the metering valve and the servo motor, the elastic coupling is positioned in the U-shaped support frame, and a pressure sensor is arranged on the flow guide pipe. The invention has novel structure and high control precision, can meet various use conditions and has wide application range.
Description
Technical Field
The invention belongs to the technical field of control valves, and particularly relates to a miniature automatic regulating valve.
Background
The valve is a control part in a fluid delivery system, has the functions of stopping, adjusting, guiding, preventing backflow, stabilizing pressure, splitting flow or overflow pressure relief, and is a device which can enable or stop the flow of media (liquid, gas and powder) in the piping and equipment and can control the flow rate.
The existing regulating valve has the following problems in the use process: the flow control precision is not high, and the use condition of small flow and small pressure cannot be met; the motor output shaft must be in the concentric position with the valve shaft to realize concentric rotation, and the motor output shaft cannot normally work if not concentric, so that the application range is limited, the use condition is harsh, the manufacturing requirement is high, and the cost is high.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art, and provides the miniature automatic regulating valve which is novel in structure, high in control precision, capable of meeting various use conditions and wide in application range.
In order to solve the technical problems, the invention adopts the following technical scheme:
miniature automatically regulated valve, including metering valve, servo motor and honeycomb duct, the honeycomb duct is connected to the metering valve, its characterized in that: a U-shaped support frame and an elastic coupling are respectively arranged between the metering valve and the servo motor, the elastic coupling is positioned in the U-shaped support frame, and a pressure sensor is arranged on the flow guide pipe; the regulating valve is novel in structure, high in control precision, capable of meeting various use conditions and wide in application range.
Further, the elastic coupling comprises an intermediate elastomer, an upper fixing pipe and a lower fixing pipe, wherein the intermediate elastomer is arranged between the upper fixing pipe and the lower fixing pipe, the upper fixing pipe is connected with an output shaft of the servo motor, the lower fixing pipe is connected with the metering valve, the intermediate elastomer enables the elastic coupling to have a certain elastic deformation quantity and to be bendable by a certain amplitude, and the elastic coupling can be used under the condition that the output shaft of the servo motor is not concentric with the valve rod, so that the requirement of using conditions is reduced, the application range is enlarged, the structure is novel, the use is reliable, and the practicability is strong.
Further, be equipped with the auxiliary stand between lower fixed pipe and the U type support frame, the auxiliary stand includes the supporting ring, bracing piece and mount pad, mount pad and supporting ring are connected to the bracing piece, bracing piece circumference distributes on the supporting ring, be equipped with the bulge loop on the lower fixed pipe, the inboard of supporting ring is equipped with positioning groove, the bulge loop is located positioning groove, the mount pad is located on the U type support frame, after the mount pad is fixed, the bracing piece gives the supporting ring support, act on simultaneously in a plurality of directions, make the supporting ring steadily present, the supporting ring plays horizontal limiting displacement to the bulge loop, prevent that the lower fixed pipe from taking place lateral displacement or deflecting at the rotation in-process, ensure that the lower fixed pipe rotates non-eccentric, make flow automatically regulated work normally go on.
Further, the ball is circumferentially distributed in the positioning groove, the ball is in contact with the outer side face of the convex ring, the convex ring rotates to drive the ball to roll in the rotation process of the elastic coupling, the contact surface is small, and therefore friction force between the convex ring and the ball is reduced, the convex ring rotates more smoothly, and control is more sensitive.
Further, be equipped with fixed baffle ring and circulation hole on the top surface of holding ring respectively, the inboard of fixed baffle ring is located to the circulation hole, and the circulation hole communicates with each other with the constant head tank, and when filling lubricating oil from the holding ring top surface, fixed baffle ring keeps off the lubricating oil ring, makes lubricating oil flow into the constant head tank through the circulation hole in, lubricates its inner wall, bulge loop, reduces the frictional force of bulge loop and constant head tank inner wall for the bulge loop rotates smoothly, thereby avoids lubricating oil direct outwards to flow out and extravagant, has improved the utilization ratio of lubricating oil, and it is also convenient to add lubricating oil.
Further, be equipped with fixed screw on the last fixed pipe, be equipped with the installation screw on the fixed pipe down, realized the detachable connection between elastic coupling and servo motor, the metering valve, the installation is simple, connects reliably, and easy maintenance, change are nimble convenient.
Further, the metering valve comprises a valve body, a valve rod, a valve core seat, a spring, an upper valve cover and a valve core, wherein a liquid inlet and a liquid outlet are respectively formed in two ends of the valve body, the valve core is arranged at one end of the valve rod, the other end of the valve rod is connected with an elastic coupling, a valve port is formed in the valve core seat, a throttle plate is arranged in the valve port, a throttle hole is formed in the throttle plate, the valve core is attached to the throttle plate, the throttle hole plays a role in stabilizing flow, noise is avoided due to the fact that the flow speed of fluid is too fast, when the throttle hole in the throttle plate is blocked by the valve core, the fluid cannot be conveyed forwards, and at the moment, the metering valve is closed and can be used instead of a stop valve; the valve rod drives the valve core to rotate, in the rotating process, the throttle holes are exposed one by one and are not blocked, fluid can pass through, and the flow control is realized.
Further, a bending channel is arranged in the throttle plate and is communicated with the throttle hole, and in the process that fluid flows through the bending channel, energy is consumed through repeated collision and turning, the flow speed is controlled, the purpose of step-by-step depressurization is achieved, the occurrence of adverse phenomena such as cavitation, noise and vibration is avoided, the influence on the metering valve is reduced, and the service life of the metering valve is prolonged.
Further, be equipped with the stiffening ring in the valve port, the bottom surface of throttle plate is connected to the stiffening ring, is equipped with L type on the bottom surface of stiffening ring and extends the limit, and the inner wall of valve port is connected to L type extension limit, and the stiffening ring has improved the mounting strength that the throttle plate was installed in the valve port, prevents to lead to the fact the throttle plate to become flexible because of fluid impact is too big, and L type extends the limit and has improved the installation steadiness of stiffening ring, has also plugged the gap between throttle plate and the valve port, has improved the leakproofness, avoids appearing the infiltration phenomenon and has influenced control accuracy.
Further, the graphite sealing filler is arranged in the valve body, so that the temperature resistance of the valve body is improved, and the use condition of the metering valve is enlarged.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. be equipped with pressure sensor on the honeycomb duct, carry the pressure of fluid in the honeycomb duct through pressure sensor real-time supervision, when pressure too big or undersize, pressure sensor sends the signal for the controller, and the servo motor of controller control rotates, drives the valve rod through elastic coupling and rotates, and the valve rod drives the case and rotates, and the orifice exposes one by one or shelters from, and fluid circulation volume increases or reduces gradually, has realized the automatically regulated to the flow, and flow range control is more accurate, can satisfy the operation requirement of various operating modes, and application scope is wider.
2. The middle elastic body enables the elastic coupling to have a certain elastic deformation quantity, can be bent by a certain amplitude, can be used under the condition that the output shaft of the servo motor is not concentric with the valve rod, reduces the requirements of using conditions, expands the application range, and has the advantages of novel structure, reliability in use and strong practicability.
3. Be equipped with the auxiliary stand down between fixed pipe and the U type support frame, after the auxiliary stand installation is fixed, the bracing piece gives the holding ring support, and the simultaneous action in a plurality of directions for the holding ring steadily presents, and the holding ring plays horizontal spacing effect to the bulge loop, prevents that the bulge loop from rotating the in-process in the positioning groove, and fixed pipe takes place lateral displacement or deflection down, ensures that fixed pipe rotates non-eccentric down, makes flow automatically regulated work normally go on.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic view of a miniature automatic regulating valve according to the present invention;
FIG. 2 is a schematic view of the connection of the elastic coupling and the auxiliary bracket in the present invention;
FIG. 3 is a schematic view of the structure of the elastic coupling of the present invention;
FIG. 4 is a schematic view of the structure of the auxiliary bracket according to the present invention;
FIG. 5 is a schematic view of the connection structure of the lower fixing tube and the support ring in the present invention;
FIG. 6 is a schematic view of the internal structure of the metering valve of the present invention;
FIG. 7 is a schematic view showing the internal structure of the throttle plate according to the present invention;
fig. 8 is a schematic view of the structure of the connection of the throttle plate and the reinforcing ring in the present invention.
In the figure: 1-a metering valve; 3-a servo motor; 4-a flow guiding pipe; 5-U-shaped supporting frames; 6-elastic coupling; 7-a valve body; 8-a valve rod; 9-a valve core seat; 10-springs; 11-an upper valve cover; 12-valve core; 13-a liquid inlet; 14-a liquid outlet; 15-valve port; 16-a throttle plate; 17-orifice; 18-a pressure sensor; 19-bending channels; 20-reinforcing rings; a 21-L extension; 22-graphite sealing filler; 23-an intermediate elastomer; 24-upper fixed tube; 25-lower fixed tube; 26-fixing screw holes; 27-mounting screw holes; 28-auxiliary brackets; 29-a support ring; 30-supporting rods; 31-a mounting base; 32-fixing seat; 33-convex rings; 34-positioning grooves; 35-mounting holes; 36-balls; 37-a fixed baffle ring; 38-a flow hole; 39-output shaft.
Detailed Description
As shown in fig. 1 to 8, the miniature automatic regulating valve comprises a metering valve 1, a controller, a servo motor 3 and a flow guide pipe 4, wherein the controller is connected with the servo motor 3, the metering valve 1 is connected with the flow guide pipe 4, a U-shaped supporting frame 5 and an elastic coupling 6 are respectively arranged between the metering valve 1 and the servo motor 3, and the elastic coupling 6 is positioned in the U-shaped supporting frame 5. The metering valve 1 comprises a valve body 7, a valve rod 8, a valve core seat 9, a spring 10, an upper valve cover 11 and a valve core 12, wherein a liquid inlet 13 and a liquid outlet 14 are respectively arranged at two ends of the valve body 7, conveyed fluid enters through the liquid inlet 13 and flows out of the liquid outlet 14, the valve core 12 is arranged at one end of the valve rod 8, the other end of the valve rod 8 is connected with an elastic coupling 6, a valve port 15 is arranged on the valve core 12 seat 9, a throttle plate 16 is arranged in the valve port 15, a throttle hole 17 is arranged on the throttle plate 16, the throttle hole 17 plays a role in stabilizing flow, noise is avoided due to the fact that the flow speed of the fluid is too fast, the valve core 12 is attached to the throttle plate 16, when the throttle hole 17 on the throttle plate 16 is blocked by the valve core 12, the fluid cannot be conveyed forwards, and the metering valve 1 can be used instead of a stop valve. The pressure sensor 18 is arranged on the flow guide pipe 4, the controller is connected with the pressure sensor 18, the pressure of fluid conveyed in the flow guide pipe 4 is monitored in real time through the pressure sensor 18, when the pressure is overlarge or is overlarge, the pressure sensor 18 sends a signal to the controller, the controller controls the servo motor 3 to rotate, the valve rod 8 is driven to rotate through the elastic coupling 6, the valve rod 8 drives the valve core 12 to rotate, the throttle holes 17 are exposed or shielded one by one, the fluid flow is gradually increased or reduced, the automatic adjustment of the flow is realized, the flow range is controlled more accurately, the use requirements of various working conditions can be met, and the application range is wider.
The throttle plate 16 is internally provided with the bending channel 19, the bending channel 19 is communicated with the throttle hole 17, and in the process of fluid flowing through the bending channel 19, energy is consumed through repeated collision turning, the flow speed is controlled, the purpose of step-by-step depressurization is achieved, the occurrence of adverse phenomena such as cavitation, noise and vibration is avoided, the influence on the metering valve 1 is reduced, and the service life of the metering valve 1 is prolonged. The reinforcing ring 20 is arranged in the valve port 15, the reinforcing ring 20 is connected with the bottom surface of the throttle plate 16, the reinforcing ring 20 improves the installation strength of the throttle plate 16 in the valve port 15, and the throttle plate 16 is prevented from loosening due to overlarge fluid impact. The bottom surface of the reinforcing ring 20 is provided with the L-shaped extending edge 21, the L-shaped extending edge 21 is connected with the inner wall of the valve port 15, the L-shaped extending edge 21 improves the installation stability of the reinforcing ring 20, also seals the gap between the throttle plate 16 and the valve port 15, improves the tightness, and avoids the influence on the control precision caused by the liquid seepage phenomenon. The graphite sealing filler 22 is arranged in the valve body 7, so that the temperature resistance of the valve body 7 is improved, and the use condition of the metering valve 1 is enlarged.
The elastic coupling 6 comprises an intermediate elastic body 23, an upper fixed pipe 24 and a lower fixed pipe 25, wherein the intermediate elastic body 23 is arranged between the upper fixed pipe 24 and the lower fixed pipe 25, a fixed screw hole 26 is formed in the upper fixed pipe 24 and used for being connected with an output shaft 39 of the servo motor 3 in a matched mode, and a mounting screw hole 27 is formed in the lower fixed pipe 25 and used for being connected with the valve rod 8 in a matched mode, so that detachable connection between the elastic coupling 6 and the servo motor 3 and between the elastic coupling and the metering valve 1 is achieved, and the elastic coupling is simple in mounting, reliable in connection, convenient to overhaul and replace, flexible and convenient. The middle elastic body 23 enables the elastic coupling 6 to have a certain elastic deformation quantity, can be bent to a certain extent, can be used under the condition that the output shaft 39 of the servo motor 3 is not concentric with the valve rod 8, reduces the requirements of using conditions, expands the application range, and has the advantages of novel structure, reliable use and strong practicability.
Be equipped with auxiliary stand 28 between lower fixed pipe 25 and the U type support frame 5, auxiliary stand 28 includes supporting ring 29, bracing piece 30 and mount pad 31, circumference distributes on the supporting ring 29 has fixing base 32, the mount pad 31 is connected to the bracing piece 30 and fixing base 32 is equipped with bulge loop 33 on the lower fixed pipe 25, the inboard of supporting ring 29 is equipped with positioning groove 34, bulge loop 33 is located positioning groove 34, mount pad 31 locates on the U type support frame 5, be equipped with mounting hole 35 on the mount pad 31, can adopt the mode of nailing to fix mount pad 31 on the U type support frame 5, location simple to operate. After the mount pad 31 is fixed, the bracing piece 30 gives the support of holding ring 29, and the simultaneous action in a plurality of directions for holding ring 29 steadily presents, and holding ring 29 plays horizontal spacing effect to bulge loop 33, prevents bulge loop 33 rotation in the in-process of positioning groove 34, and lower fixed pipe 25 takes place lateral displacement or deflection, ensures that lower fixed pipe 25 rotates non-eccentric, makes flow automatically regulated work normally go on. The balls 36 are circumferentially distributed in the positioning groove 34, the balls 36 are in contact with the outer side surface of the convex ring 33, the convex ring 33 rotates to drive the balls 36 to roll in the rotating process of the elastic coupler 6, and the contact surface is small, so that friction between the convex ring 33 and the balls 36 is reduced, the convex ring 33 rotates more smoothly, and control is more sensitive. The top surface of the support ring 29 is respectively provided with a fixed baffle ring 37 and a circulation hole 38, the circulation hole 38 is positioned at the inner side of the fixed baffle ring 37, the circulation hole 38 is communicated with the positioning groove 34, when lubricating oil is filled from the top surface of the support ring 29, the fixed baffle ring 37 blocks the lubricating oil ring, so that the lubricating oil flows into the positioning groove 34 through the circulation hole 38, the inner wall, the balls 36 and the convex ring 33 are lubricated, friction force is reduced, the convex ring 33 rotates smoothly, waste caused by direct outward outflow of the lubricating oil is avoided, the utilization rate of the lubricating oil is improved, and the lubricating oil is convenient to add.
1. The pressure sensor 18 is arranged on the flow guide pipe 4, the pressure of fluid conveyed in the flow guide pipe 4 is monitored in real time through the pressure sensor 18, when the pressure is too large or too small, the pressure sensor 18 sends a signal to the controller, the controller controls the servo motor 3 to rotate, the valve rod 8 is driven by the elastic coupler 6 to rotate, the valve rod 8 drives the valve core 12 to rotate, the throttle holes 17 are exposed or shielded one by one, the fluid flow is gradually increased or reduced, the automatic adjustment of the flow is realized, the flow range is controlled more accurately, the use requirements of various working conditions can be met, and the application range is wider.
2. The middle elastic body 23 enables the elastic coupling 6 to have a certain elastic deformation quantity, can be bent to a certain extent, can be used under the condition that the output shaft 39 of the servo motor 3 is not concentric with the valve rod 8, reduces the requirements of using conditions, expands the application range, and has the advantages of novel structure, reliable use and strong practicability.
3. Be equipped with auxiliary stand 28 between lower fixed pipe 25 and the U type support frame 5, after auxiliary stand 28 installation is fixed, bracing piece 30 gives support ring 29 support, and the simultaneous action in a plurality of directions for support ring 29 steadily presents, and support ring 29 plays horizontal spacing effect to bulge loop 33, prevents bulge loop 33 rotation in the in-process of positioning groove 34, and lower fixed pipe 25 takes place lateral displacement or deflection, ensures that lower fixed pipe 25 rotates non-eccentric, makes flow automatically regulated work normally go on.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications and the like made on the basis of the present invention to solve the substantially same technical problems and achieve the substantially same technical effects are included in the scope of the present invention.
Claims (6)
1. Miniature automatically regulated valve, including metering valve, servo motor and honeycomb duct, the metering valve is connected the honeycomb duct, its characterized in that: a U-shaped support frame and an elastic coupling are respectively arranged between the metering valve and the servo motor, the elastic coupling is positioned in the U-shaped support frame, and a pressure sensor is arranged on the flow guide pipe; the elastic coupler comprises an intermediate elastomer, an upper fixed pipe and a lower fixed pipe, wherein the intermediate elastomer is arranged between the upper fixed pipe and the lower fixed pipe, the upper fixed pipe is connected with an output shaft of the servo motor, and the lower fixed pipe is connected with the metering valve; an auxiliary support is arranged between the lower fixing pipe and the U-shaped support frame, the auxiliary support comprises a support ring, support rods and a mounting seat, the support rods are connected with the mounting seat and the support ring, the support rods are circumferentially distributed on the support ring, a convex ring is arranged on the lower fixing pipe, a positioning groove is formed in the inner side of the support ring, the convex ring is located in the positioning groove, and the mounting seat is arranged on the U-shaped support frame; balls are circumferentially distributed in the positioning groove and are contacted with the outer side surface of the convex ring; the top surface of the supporting ring is respectively provided with a fixed baffle ring and a flow hole, the flow hole is positioned at the inner side of the fixed baffle ring, and the flow hole is communicated with the positioning groove.
2. The miniature self-regulating valve according to claim 1, wherein: the upper fixing pipe is provided with a fixing screw hole, and the lower fixing pipe is provided with a mounting screw hole.
3. The miniature self-regulating valve according to claim 1, wherein: the metering valve comprises a valve body, a valve rod, a valve core seat, a spring, an upper valve cover and a valve core, wherein a liquid inlet and a liquid outlet are respectively formed in two ends of the valve body, the valve core is arranged at one end of the valve rod, the other end of the valve rod is connected with the elastic coupling, a valve port is formed in the valve core seat, a throttle plate is arranged in the valve port, a throttle hole is formed in the throttle plate, and the valve core is attached to the throttle plate.
4. A miniature self-regulating valve as defined in claim 3, wherein: and a bending channel is arranged in the throttle plate and is communicated with the throttle hole.
5. A miniature self-regulating valve as defined in claim 3, wherein: the valve port is internally provided with a reinforcing ring, the reinforcing ring is connected with the bottom surface of the throttle plate, the bottom surface of the reinforcing ring is provided with an L-shaped extending edge, and the L-shaped extending edge is connected with the inner wall of the valve port.
6. A miniature self-regulating valve as defined in claim 3, wherein: and graphite sealing filler is arranged in the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910446518.0A CN110173568B (en) | 2019-05-27 | 2019-05-27 | Miniature automatic regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910446518.0A CN110173568B (en) | 2019-05-27 | 2019-05-27 | Miniature automatic regulating valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110173568A CN110173568A (en) | 2019-08-27 |
| CN110173568B true CN110173568B (en) | 2024-03-15 |
Family
ID=67695926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910446518.0A Active CN110173568B (en) | 2019-05-27 | 2019-05-27 | Miniature automatic regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110173568B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN210265874U (en) * | 2019-05-27 | 2020-04-07 | 衢州市沃德仪器有限公司 | Miniature automatic regulating valve |
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| US20070262029A1 (en) * | 2006-01-09 | 2007-11-15 | Takashi Yoshida | Actuated pressure control valve assembly and method |
| DE102013015138A1 (en) * | 2013-09-13 | 2015-03-19 | Man Truck & Bus Ag | Device for controlling a throttle valve, in particular a throttle valve of an intake system of an internal combustion engine |
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| EP0122466A2 (en) * | 1983-03-17 | 1984-10-24 | Emil Siegwart | Control apparatus for the regulating variable of a flow governor in an air conditioning plant |
| KR200351012Y1 (en) * | 2004-02-11 | 2004-05-17 | 주식회사 모아텍 | Gas valve for having monolithic structure of step motor and electromagnetic cylinder |
| WO2010039044A2 (en) * | 2008-09-30 | 2010-04-08 | David John Picton | Valve |
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| CN206398150U (en) * | 2017-01-17 | 2017-08-11 | 杭州华惠阀门有限公司 | Control valve |
| CN210265874U (en) * | 2019-05-27 | 2020-04-07 | 衢州市沃德仪器有限公司 | Miniature automatic regulating valve |
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|---|---|
| CN110173568A (en) | 2019-08-27 |
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