CN109519562B

CN109519562B - Intelligent reversing valve

Info

Publication number: CN109519562B
Application number: CN201811346157.4A
Authority: CN
Inventors: 贾景州
Original assignee: Henan Yuzhou Fluid Technology Co ltd
Current assignee: Henan Yuzhou Fluid Technology Co ltd
Priority date: 2018-11-13
Filing date: 2018-11-13
Publication date: 2020-05-08
Anticipated expiration: 2038-11-13
Also published as: CN109519562A

Abstract

The utility model provides an intelligent reversing valve, first case are established in the one end that is close to first export, and the one end that is close to the second export is established to the second case, and in the control shell was stretched into to the upper end of valve rod, the valve rod stretched into the casing end and is equipped with the screw thread section, screw thread section screwed connection had the swivel nut, and sliding connection has driven gear about the swivel nut, installs the driving gear with driven gear meshing on the step motor output shaft, driven gear pivoted is fixed on the casing, and the lower part of casing is equipped with the installation pole, is equipped with the turning pin on the installation pole, and the length that the turning pin is apart from the valve body is adjustable, and the turning pin rotates and is connected with the detachable control lever, and the middle part and the turning pin of control lever rotate to be connected, and the one end that the valve body stretched out below of valve. The reversing valve is simple to operate and high in stability, and the manual mode is mainly operated under emergency or power failure and other accidental conditions, so that the reliability of the reversing valve is improved.

Description

Intelligent reversing valve

Technical Field

The invention relates to the technical field of valve equipment, in particular to an intelligent reversing valve.

Background

The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing backflow, stabilizing pressure, overflowing, relieving pressure and the like. The valve can be controlled in various manners, such as manually, electrically, hydraulically, pneumatically, electromagnetically and the like, and can be operated according to a preset requirement under the action of pressure, temperature or other forms of sensing signals, or can be simply opened or closed without depending on the sensing signals. In sewage sludge treatment or in the production and transmission process of granular slurry, ash and mother liquor, a medium transmitted from a main pipeline is generally divided into two branch pipelines according to the production condition, in order to control the flow rates of the media entering the two branch pipelines, a control valve is generally installed on each of the two branch pipelines, and the flow rates of the branch pipelines are adjusted by respectively adjusting the two control valves. This type of regulation is complex and cannot be controlled quickly by a single valve. Many valves require a combined control mode of electric control and manual control according to actual use requirements.

Disclosure of Invention

In view of the above situation, in order to overcome the defects of the prior art, the present invention aims to provide an intelligent control valve, which controls the full opening and the cut-off of the media respectively entering two branch pipes from a main pipe through a valve, and simultaneously realizes the electric control and the manual control.

The intelligent reversing valve is characterized in that a first valve core and a second valve core are fixed on the valve rod, the first valve core is arranged at one end close to a first outlet, the second valve core is arranged at one end close to a second outlet, the valve rod sequentially experiences that the first outlet is completely communicated with the second outlet and is cut off, the first outlet is half communicated with the second outlet, the first outlet is cut off and the second outlet is half communicated, the first outlet is cut off and is completely communicated with the second outlet, the first outlet is cut off and is completely communicated, a shell is fixed on the upper portion of the valve body, and the upper end of the valve rod extends into the shell, the valve rod extends into the shell, a threaded section is arranged at the end, extending into the shell, of the valve rod, a threaded sleeve is spirally connected with the threaded sleeve, a driven gear is connected with the threaded sleeve in a vertical sliding mode, a stepping motor is fixed in the shell, a driving gear meshed with the driven gear is installed on an output shaft of the stepping motor, the driven gear is rotationally fixed on the shell, a control motor is installed in the shell and connected with a control shaft, a shaft shoulder is arranged on the control shaft, a driving friction disc is coaxially connected with one side, away from the control motor, of the control shaft in a sliding mode, a pressure spring sleeved on the control shaft is arranged between the shaft shoulder and the friction disc, an installation frame is fixed in the shell, a driven shaft coaxial with the control shaft is rotatably connected on the installation frame, a driven friction disc is fixedly connected at one end, close to the control shaft, the lower part of casing is equipped with the installation pole, is equipped with the rotating pin on the installation pole, and the length of rotating pin distance valve body is adjustable, and the rotating pin rotates to be connected with the detachable control lever, and the middle part and the rotating pin of control lever rotate to be connected, and the valve rod stretches out the one end of valve body downwards and is equipped with the drive round pin, and the control lever is equipped with the drive groove towards the one end of case, and the drive round pin stretches into in the drive groove with drive groove sliding connection.

Preferably, be equipped with the screw hole on the valve body, the installation pole inserts screw hole and valve body threaded connection, the one end that deviates from the valve body on the installation pole rotates and is connected with the installation piece, and the rotating pin setting is on the installation piece.

Preferably, the end part of the control rod, which is close to the valve rod, is fixedly connected with a half gear, the axis of the half gear coincides with the rotation axis of the control rod, the half gear is engaged with a vertically arranged friction rack, one end of the friction rack, which is close to the valve body, is provided with a friction strip, the valve body is provided with a friction hole, the friction strip extends into the friction hole and is connected with the shell in a vertical sliding manner, the shell is inserted with a force increasing rod in a sliding manner, the force increasing rod extends into the friction hole and is contacted with the friction strip, the friction strip is perpendicular to the force increasing rod, one end of the force increasing rod, which deviates from the shell, is provided with a flange.

Preferably, the valve body is divided into a lower valve body and a valve body cover, the valve body cover is detachably covered on the lower valve body, and a sealing gasket is arranged between the valve body cover and the lower valve body.

Preferably, all be equipped with connecting portion on import, first export, the second export, connecting portion deviate from the tip of casing and are fixed with the ring flange.

The invention has the beneficial effects that: the intelligent reversing valve controls the full opening and the cut-off of media respectively entering the two branch pipelines from a main pipeline through a valve; the valve core can be operated in a manual mode and an electric mode, the operation is simple, the stability is high, the manual mode is mainly operated under the emergency or power-off or other unexpected conditions, and the reliability of the reversing valve is improved.

Drawings

FIG. 1 is a schematic view of the installation of the present invention;

FIG. 2 is a schematic diagram of a drive circuit of the present invention;

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in figures 1 to 2, the intelligent reversing valve comprises a valve body 1 with a cylindrical cavity and a valve rod 2, wherein the valve rod 2 penetrates through the valve body 1 from top to bottom and is in sliding connection with the valve body 1 in a sealing mode, the middle of the left side of the valve body 1 is provided with an inlet 3, the right side of the valve body 1 is provided with a first outlet 4 and a second outlet 5 at intervals, and the inlet 3 is positioned between the first outlet 4 and the second outlet 5, and the intelligent reversing valve is characterized in that a first valve core 6 and a second valve core 7 are fixed on the valve rod 2, the first valve core 6 is arranged at one end close to the first outlet 4, the second valve core 7 is arranged at one end close to the second outlet 5, the valve rod 2 sequentially passes through the first outlet 4 and the second outlet 5 in the process of moving from the lowest end to the highest end, the first outlet 4 is completely communicated with the second outlet 5, the first outlet 4 is semi-communicated with the second outlet 5, the first outlet 4 is blocked by the second, the first outlet 4 cuts off the second outlet 5, the upper part of the valve body 1 is fixed with a shell 8, the upper end of the valve rod 2 extends into the shell 8, the end of the valve rod 2 extending into the shell 8 is provided with a thread section, the thread section is spirally connected with a screw sleeve 10, the screw sleeve 10 is vertically connected with a driven gear 11 in a sliding manner, the shell 8 is internally fixed with a stepping motor 12, an output shaft of the stepping motor 12 is provided with a driving gear 13 engaged with the driven gear 11, the driven gear 11 is rotationally fixed on the shell 8, the shell 8 is internally provided with a control motor 14, the control motor 14 is connected with a control shaft 15, the control shaft 15 is provided with a shaft shoulder, one side of the control shaft 15, which is far away from the control motor 14, is coaxially connected with a driving friction disc 16 in a sliding manner, a pressure spring 17 sleeved on the control shaft 15 is arranged between the shaft shoulder and the friction disc, the, one end of the driven shaft 19, which is close to the control shaft 15, is fixedly connected with a driven friction disc 20, a control gear 22 is installed on the driven shaft 19, the control gear 22 is meshed with a vertical control rack 21, a pressing sheet 23 is fixed at the lower end of the control rack 21, the pressing sheet 23 can be in contact with the thread insert 10 to limit the thread insert 10 to move upwards, an installation rod 24 is arranged at the lower part of the shell 8, a rotating pin 25 is arranged on the installation rod 24, the length of the rotating pin 25, which is far away from the valve body 1, can be adjusted, the rotating pin 25 is rotatably connected with a detachable control rod 26, the middle part of the control rod 26 is rotatably connected with the rotating pin 25, a driving pin is arranged at one end, extending out of the valve body 1 downwards, of the control rod.

The forward and reverse rotation of the stepping motor 12 drives the threaded sleeve 10 to rotate through the driving gear 13 and the driven gear 11, and then the up-and-down movement of the valve rod 2 is realized. In order to realize that the screw sleeve 10 only rotates and cannot move up and down, the control motor 14 works before the stepping motor 12, the control gear 22 drives the control rack 21 and the pressing plate 23 to move downwards under the action of the control motor 14, when the pressing plate 23 presses the screw sleeve 10, the pressing plate 23 is stressed increasingly, and at the moment, the driving friction disc 16 and the driven friction disc 20 slip to prevent the control motor 14 from overloading. Because the preforming 23 is pressing the swivel nut 10, when step motor 12 rotated this moment, the drive drives swivel nut 10 through driving gear 13 and driven gear 11 and rotates, and then realizes reciprocating of valve rod 2, first case 6 and second case 7, and then realizes the break-make of import 3 and first export 4, second export 5.

When the control rod 26 is manually moved, the control motor 14 is powered off, the output shaft of the control motor 14 can rotate under the action of external force, the valve rod 2, the first valve core 6 and the second valve core 7 can be driven to move under the action of the control pin, and the driven gear 11 cannot influence the movement of the valve rod 2 because the threaded sleeve 10 and the driven gear 11 are in up-down sliding connection. The control rod 26 is manually moved to realize that the up-and-down movement of the valve rod 2 is a manual mode, and when the manual mode is adopted, the distance between the driving pin and the valve body 1 can be adjusted according to needs, the position of the driving pin is adjusted, and then the control is installed on the driving pin, so that the upward or downward stroke of the control rod 26 is adjusted.

Be equipped with the screw hole on the valve body 1, installation pole 24 inserts screw hole and valve body 1 threaded connection, the one end that deviates from valve body 1 on the installation pole 24 rotates and is connected with the installation piece, and the rotating pin 25 sets up on the installation piece. By controlling the depth of screwing into the threaded hole, the distance between the mounting block and the rotating pin 25 from the valve body 1 can be controlled.

The utility model discloses a valve body, including control rod 26, friction rack 28, friction strip 29, friction strip 34, friction strip 29 and boosting pole 34, control rod 26 is close to the one end fixedly connected with half gear 27 of valve rod 2, and the axis of half gear 27 coincides with the axis of rotation of control rod 26, half gear 27 meshes the friction rack 28 that has vertical setting, and the one end that friction rack 28 is close to valve body 1 is equipped with friction strip 29, is equipped with the friction hole on the valve body 1, and friction strip 29 stretches into the friction downthehole and casing sliding connection from top to bottom, and the slip has been inserted boosting pole 34 on the casing 8, and boosting pole 34 stretches into the downthehole and friction strip 29 contact of friction, and friction strip 29 is perpendicular with boosting pole 34, and the one end that. Under the action of the tension spring 31, the force increasing rod 34 presses the friction strip 29, so that the pressure between the friction strip 29 and the friction hole and the pressure between the force increasing rod 34 and the friction strip 29 are increased, and the friction force between the friction strip 29 and the force increasing rod is further increased. The resistance to the rotation of the operating lever is increased, thereby preventing the valve body 1 from being erroneously operated when it is used.

The valve body 1 is divided into a lower valve body and a valve body cover, the valve body cover is detachably covered on the lower valve body, and a sealing gasket is arranged between the valve body cover and the lower valve body.

All be equipped with connecting portion on import 3, first export 4, the second export 5, the end fixing that connecting portion deviate from casing 8 has the ring flange. The flange plate is connected with the corresponding pipeline through a flange structure, and the connection is stable and reliable.

The intelligent reversing valve controls the full opening and the cut-off of media respectively entering the two branch pipelines from a main pipeline through a valve; the valve core can be operated in a manual mode and an electric mode, the operation is simple, the stability is high, the manual mode is mainly operated under the emergency or power-off or other unexpected conditions, and the reliability of the reversing valve is improved.

The above-mentioned embodiments do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should be included in the protection scope defined by the claims of the present invention.

Claims

1. An intelligent reversing valve comprises a valve body (1) with a cylindrical cavity and a valve rod (2), wherein the valve rod (2) penetrates through the valve body (1) from top to bottom and is in sliding connection with the valve body (1) from top to bottom in a sealing mode, an inlet (3) is arranged in the middle of the left side of the valve body (1), a first outlet (4) and a second outlet (5) are arranged on the right side of the valve body (1) at intervals, the inlet (3) is located between the first outlet (4) and the second outlet (5), the intelligent reversing valve is characterized in that a first valve core (6) and a second valve core (7) are fixed on the valve rod (2), the first valve core (6) is arranged at one end close to the first outlet (4), the second valve core (7) is arranged at one end close to the second outlet (5), the valve rod (2) sequentially passes through in the process of moving from the lowest end to the highest end, the first outlet (4) is completely communicated with the second outlet (5), and the first outlet (4) is partially communicated with the, first export (4) is cut second export (5) and is cut, and first export (4) is cut second export (5) and is partly led to, and first export (4) is cut second export (5) and is led to entirely, the upper portion of valve body (1) is fixed with casing (8), and the upper end of valve rod (2) stretches into in casing (8), and valve rod (2) stretch into casing (8) end and are equipped with the screw thread section, and screw thread section screwed connection has swivel nut (10), and sliding connection has driven gear (11) from top to bottom in swivel nut (10), and casing (8) internal fixation has step motor (12), installs driving gear (13) with driven gear (11) meshing on step motor (12) output shaft, driven gear (11) pivoted is fixed on casing (8), installs control motor (14) in casing (8), and control motor (14) connection control axle (15) is equipped with the shaft shoulder on control axle (15), one side of the control shaft (15) departing from the control motor (14) is coaxially and slidably connected with a driving friction disc (16), a pressure spring (17) sleeved on the control shaft (15) is arranged between a shaft shoulder and the friction disc, a mounting frame (18) is fixed in the shell (8), a driven shaft (19) which is coaxial with the control shaft (15) is rotatably connected to the mounting frame (18), a driven friction disc (20) is fixedly connected to one end, close to the control shaft (15), of the driven shaft (19), a control gear (22) is installed on the driven shaft (19), the control gear (22) is meshed with a vertical control rack (21), a pressing sheet (23) is fixed to the lower end of the control rack (21), the pressing sheet (23) can be in contact with the threaded sleeve (10) to limit the upward movement of the threaded sleeve (10), an installation rod (24) is arranged on the lower portion of the shell (8), a rotating pin (25) is arranged on the installation rod, the rotating pin (25) is rotatably connected with a detachable control rod (26), the middle of the control rod (26) is rotatably connected with the rotating pin (25), a driving pin is arranged at one end, extending out of the valve body (1), of the valve rod (2) downwards, a driving groove is formed in one end, facing the valve core, of the control rod (26), and the driving pin extends into the driving groove and is in sliding connection with the driving groove.

2. The intelligent reversing valve according to claim 1, characterized in that a threaded hole is formed in the valve body (1), a mounting rod (24) is inserted into the threaded hole and is in threaded connection with the valve body (1), a mounting block is rotatably connected to one end of the mounting rod (24) away from the valve body (1), and a rotating pin (25) is arranged on the mounting block.

3. An intelligent reversing valve according to claim 1, characterized in that a half gear (27) is fixedly connected to one end of the control rod (26) close to the valve rod (2), the axis of the half gear (27) is coincident with the rotation axis of the control rod (26), half gear (27) meshing has friction rack (28) of vertical setting, the one end that friction rack (28) are close to valve body (1) is equipped with friction strip (29), be equipped with the friction hole on valve body (1), slide connection about friction strip (29) stretch into the friction hole with the casing, sliding insertion has force-increasing pole (34) on casing (8), force-increasing pole (34) stretch into the friction downthehole with friction strip (29) contact, friction strip (29) are perpendicular with force-increasing pole (34), force-increasing pole (34) deviate from the one end of casing (8) and are equipped with the flange, be fixed with between flange and casing (8) and overlap extension spring (31) on force-increasing pole (34).

4. An intelligent reversing valve according to claim 1, wherein the valve body (1) is divided into a lower valve body and a valve body cover, the valve body cover is detachably covered on the lower valve body, and a sealing gasket is arranged between the valve body cover and the lower valve body.

5. An intelligent reversing valve according to claim 1, wherein the inlet (3), the first outlet (4) and the second outlet (5) are provided with connecting parts, and a flange is fixed at the end of each connecting part, which is far away from the housing (8).