CN211928446U - Automatic pressure regulating device - Google Patents
Automatic pressure regulating device Download PDFInfo
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- CN211928446U CN211928446U CN202020986533.2U CN202020986533U CN211928446U CN 211928446 U CN211928446 U CN 211928446U CN 202020986533 U CN202020986533 U CN 202020986533U CN 211928446 U CN211928446 U CN 211928446U
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- pressure regulating
- shaft sleeve
- rotating shaft
- motor
- valve
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Abstract
An automatic pressure regulating device comprises a pressure regulating valve, a rotating mechanism and a motor, wherein the rotating mechanism comprises a mounting seat, a rotating shaft sleeve and an up-and-down movement conversion shaft, the rotating shaft sleeve is rotatably arranged on the mounting seat, the up-and-down movement conversion shaft is sleeved in the rotating shaft sleeve, a plurality of semi-cylindrical guide grooves are axially formed in the inner wall of the rotating shaft sleeve and the outer wall of the up-and-down movement conversion shaft, the guide grooves on the rotating shaft sleeve and the guide grooves on the up-and-down movement conversion shaft are in one-to-one correspondence and enclose into a cylindrical guide cavity; a valve rod of the pressure regulating valve is connected with one end of the up-and-down motion conversion shaft, and the valve rod and the up-and-down motion conversion shaft are positioned on the same axis; the motor is in transmission connection with the rotating shaft sleeve. The utility model discloses a closed-loop control is done with the motor to the pressure of air-vent valve output, according to setting for pressure, realizes automatic pressure regulating, has improved the pressure regulation precision.
Description
Technical Field
The utility model relates to a regulator field, concretely relates to automatic regulator.
Background
At present, the automatic pressure regulating mechanism on the market is realized mostly through electric proportional valve, but electric proportional valve's drawback lies in, the great fluctuation of rear end pressure can be aroused to the small signal change in the pressure regulating process, because the proportion pressure regulating is closed loop control, the pressure fluctuation of rear end can arouse the fluctuation of making a round trip of front end input signal again, make pressure be in pressure regulating steady state always, hardly guarantee steady pressure output, make the pressure curve unsmooth, under the lower condition of test pressure, it is more obvious that the curve is the cockscomb structure, influence experimental effect.
In addition, there is another proportional valve that is adjusted manually, and an operator needs to slowly adjust the handle of the pressure adjusting valve during a test until the test pressure reaches a set pressure, which takes a long time, and therefore, when the pressure adjusting valve and the central control room are not in the same area, a plurality of people are required to operate the proportional valve.
Therefore, it is necessary to develop a fully automatic voltage control and regulation device to realize precise voltage control and regulation.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an above-mentioned problem that solves prior art and exists provides an automatic pressure regulating device to in solving current pressure regulating mechanism, adopt electric proportional valve easy overshoot in accommodation process, hardly guarantee steady pressure output, adopt the proportional valve of manual regulation, then waste time and energy relatively, and unable accurate control scheduling problem.
In order to achieve the above object, the utility model provides an automatic pressure regulating device, including air-vent valve, rotary mechanism and motor, wherein:
the rotating mechanism comprises an installation seat, a rotating shaft sleeve which is rotatably arranged on the installation seat and an up-and-down motion conversion shaft which is sleeved in the rotating shaft sleeve, wherein a plurality of semi-cylindrical guide grooves are axially formed in the inner wall of the rotating shaft sleeve and the outer wall of the up-and-down motion conversion shaft, the guide grooves in the rotating shaft sleeve and the guide grooves in the up-and-down motion conversion shaft are in one-to-one correspondence and form a cylindrical guide cavity, and a plurality of bearing steel balls are arranged in the guide cavity;
the pressure regulating valve is provided with a valve rod with a thread pair structure, the valve rod is connected with one end of the up-and-down motion converting shaft, and the valve rod and the up-and-down motion converting shaft are positioned on the same axis; the motor is in transmission connection with the rotating shaft sleeve, so that the motor drives the rotating shaft sleeve to rotate on the mounting seat, the rotating shaft sleeve drives the up-and-down motion conversion shaft to rotate through the bearing steel balls, the up-and-down motion conversion shaft drives the valve rod of the pressure regulating valve to rotate, and meanwhile, the valve rod of the pressure regulating valve drives the up-and-down motion conversion shaft to move freely in the rotating shaft sleeve along the axial direction.
As a further preferred technical scheme of the utility model, parallel arrangement's upper plate and hypoplastron about the mount pad is drawn together to and inlay two bearings of dress in upper plate and hypoplastron respectively along same axis, the upper and lower both ends of rotatory axle sleeve overlap respectively and are even two in the inner circle of bearing.
As a further preferred technical scheme of the utility model, the rear side of hypoplastron is equipped with hypoplastron vertically connecting plate, the upper plate passes through bolted connection and is in so that the appearance of mount pad is the U-shaped structure on the connecting plate.
As a further preferred technical scheme of the utility model, the upper plate with rotatory axle sleeve between the hypoplastron is supporting to be equipped with from the driving wheel on, the output shaft end connection of motor has the change-over spindle, be equipped with the action wheel on the change-over spindle, from the driving wheel with the action wheel passes through synchronous belt drive and connects to it is rotatory to make the motor drive action wheel, thereby drives the hold-in range and rotates, and then drives from driving wheel and rotatory axle sleeve rotation.
As a further preferred technical scheme of the utility model, the motor is step motor
As a further preferred technical scheme of the utility model, the device still includes the fixed plate, rotary mechanism passes through mount pad fixed mounting on the fixed plate, the motor in rotary mechanism's side is passed through motor support fixed mounting and is in on the fixed plate, the air-vent valve passes through air-vent valve support fixed mounting and is in rotary mechanism's below, and the valve rod of air-vent valve with rotary mechanism's up-and-down motion converting shaft's axial is unanimous.
As a further preferred technical scheme of the utility model, the device still includes limit switch, limit switch sets up rotary mechanism's top, and limit switch's response end is just down to the upper end tip of up-and-down motion converting shaft, and the lower extreme of up-and-down motion converting shaft then is connected with the valve rod of air-vent valve.
As a further preferred technical scheme of the utility model, be equipped with the limit switch support on the mount pad, limit switch sets up on the limit switch support along the axial height of up-and-down motion converting shaft adjustably.
The automatic pressure regulating device of the utility model can drive the rotating shaft sleeve to rotate through the positive and negative rotation of the motor, thereby rotating the up-and-down motion converting shaft, further driving the valve rod of the pressure regulating valve to rotate and move up and down to automatically regulate the pressure; closed-loop control is done with the motor to the pressure of accessible air-vent valve output, according to setting for pressure, accurate pressure regulating to can realize dynamic pressure control, it has following beneficial effect:
1) the structure is simple, the operation is convenient, and the device is suitable for various installation environments;
2) the pneumatic and hydraulic dynamic pressure regulation can be realized, the integration level is high, the structure is compact, and the use efficiency is high;
3) the pressure regulation is accurate, automatic pressure regulation is realized, and the pressure curve of the pressure regulation is smooth;
4) the pressure output by the pressure regulating valve and the motor are subjected to closed-loop control, and the pressure is automatically regulated according to the set pressure, so that the pressure regulation precision is improved;
5) compared with an electric proportional valve, the pressure regulation precision and stability are improved; compared with a manual proportional valve, the labor intensity of manual adjustment of operators is reduced.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural view of an example provided by the automatic pressure regulating apparatus of the present invention;
FIG. 2 is a perspective view of the rotating mechanism;
fig. 3 is a front view of the rotating mechanism;
FIG. 4 is a cross-sectional view A-A of the rotating mechanism of FIG. 3;
FIG. 5 is a schematic structural view of the vertical motion converting shaft;
fig. 6 is a schematic structural view of the rotary sleeve.
In the figure: 1-fixing the plate; 2, a limit switch bracket; 3, a rotating mechanism; 4 pressure regulating valve support; 5, a pressure regulating valve; 6, a limit switch; 7 converting the shaft; 8, driving wheels; 9 synchronous belts; 10, a motor bracket; 11, a motor; 12, mounting a plate; 13 a lower plate; 14, sealing the cover; 15 bearing; 16 driven wheels; 17 bearing steel balls; 18 a rotating sleeve; 19 up and down movement of the switching shaft, 20 guide the groove.
The purpose of the present invention is to provide a novel and improved method and apparatus for operating a computer.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description. In the preferred embodiments, the terms "upper", "lower", "left", "right", "middle" and "a" are used for the sake of clarity only, and are not intended to limit the scope of the invention, its relative relationship between the terms and their derivatives, and the scope of the invention should be understood as being limited by the claims.
As shown in fig. 1 to 6, the utility model provides an automatic pressure regulating device, including air-vent valve 5, rotary mechanism 3 and motor 11, wherein:
the rotating mechanism 3 comprises a mounting seat, a rotating shaft sleeve 18 which is rotatably arranged on the mounting seat and an up-and-down motion conversion shaft 19 which is sleeved in the rotating shaft sleeve 18, wherein a plurality of semi-cylindrical guide grooves 20 are axially formed in the inner wall of the rotating shaft sleeve 18 and the outer wall of the up-and-down motion conversion shaft 19, the guide grooves 20 on the rotating shaft sleeve 18 and the guide grooves 20 on the up-and-down motion conversion shaft 19 correspond to each other one by one and enclose a cylindrical guide cavity, and a plurality of bearing steel balls 17 are arranged in the guide cavity;
the pressure regulating valve 5 in this embodiment is a proportional valve, and the pressure regulating valve 5 has a stem of a screw pair structure, which is connected to one end of the up-down movement converting shaft 19, and which is located on the same axis as the up-down movement converting shaft 19; the motor 11 is in transmission connection with the rotating shaft sleeve 18, so that the motor 11 drives the rotating shaft sleeve 18 to rotate on the mounting seat, the rotating shaft sleeve 18 drives the up-and-down movement conversion shaft 19 to rotate through the bearing steel balls 17, the up-and-down movement conversion shaft 19 drives the valve rod of the pressure regulating valve 5 to rotate, and meanwhile, the valve rod of the pressure regulating valve 5 drives the up-and-down movement conversion shaft 19 to move freely in the rotating shaft sleeve 18 along the axial direction.
The up-down movement converting shaft 19 is movable up and down relative to the rotary sleeve 18, when the converting shaft 19 drives the valve rod of the pressure regulating valve 5 to rotate, the screw pair structure of the pressure regulating valve 5 can make the valve rod screw in or out on the body of the pressure regulating valve 5, so as to drive the up-down movement converting shaft 19 to move up and down, the pressure regulating valve 5 belongs to the prior art, and the specific structure thereof is not described in detail herein.
In specific implementation, the mounting seat comprises an upper plate 12 and a lower plate 13 which are arranged in parallel up and down, and two bearings 15 which are embedded in the upper plate 12 and the lower plate 13 respectively along the same axis, and the upper end and the lower end of the rotating shaft sleeve 18 are respectively sleeved in the inner rings of the two bearings 15, that is, the mounting seat is rotatably supported and connected with the upper end and the lower end of the rotating shaft sleeve 18, so that the rotating shaft sleeve 18 cannot swing off the axis when the mounting seat rotates. The top surface of the upper plate 12 and the bottom surface of the lower plate 13 are respectively provided with a sealing cover 14 covering the corresponding bearing 15, the center of the sealing cover 14 is provided with a through hole for the up-and-down motion conversion shaft 19 to pass through, the aperture of the through hole is about larger than the diameter of the up-and-down motion conversion shaft 19, so that the sealing cover 14 can prevent the bearing steel balls 17 from falling out of the guide cavity, and simultaneously, the dustproof effect is also achieved
Preferably, the rear side of the lower plate 13 is provided with a connecting plate which is perpendicular to the lower plate 13, and the upper plate 12 is connected to the connecting plate through bolts so that the mounting seat is in a U-shaped structure, the mounting seat in the U-shaped structure is more stable, and the subsequent transmission part can be conveniently mounted.
In specific implementation, a driven wheel 16 is tightly matched with a rotating shaft sleeve 18 between an upper plate 12 and a lower plate 13, the motor 11 is a stepping motor 11, the end part of an output shaft of the motor 11 is connected with a conversion shaft 7, the conversion shaft 7 is provided with a driving wheel 8, the driven wheel 16 is in transmission connection with the driving wheel 8 through a synchronous belt 9, so that the motor 11 drives the driving wheel 8 to rotate, the synchronous belt 9 is driven to rotate, and the driven wheel 16 and the rotating shaft sleeve 18 are driven to rotate. Of course, the motor 11 can also drive the rotation shaft sleeve 18 to rotate through other transmission mechanisms, such as a gear set, and the specific structure thereof will not be described in detail herein.
In specific implementation, the device further comprises a fixed plate 1, the rotating mechanism 3 is fixedly mounted on the fixed plate 1 through a mounting seat, the motor 11 is fixedly mounted on the fixed plate 1 through a motor support 10 on the side surface of the rotating mechanism 3, the pressure regulating valve 5 is fixedly mounted below the rotating mechanism 3 through a pressure regulating valve support 4, and a valve rod of the pressure regulating valve 5 is axially consistent with an up-and-down movement conversion shaft 19 of the rotating mechanism 3.
In specific implementation, the device further comprises a limit switch 6, the limit switch 6 is arranged above the rotating mechanism 3, a sensing end of the limit switch 6 faces downward to an upper end portion of the up-down movement converting shaft 19, a lower end of the up-down movement converting shaft 19 is connected with a valve rod of the pressure regulating valve 5, in the pressure regulating process, the up-down movement converting shaft 19 drives the valve rod of the pressure regulating valve 5 to rotate, meanwhile, the valve rod of the pressure regulating valve 5 drives the up-down movement converting shaft 19 to move axially in the rotating shaft sleeve 18, in the ascending process (namely, the valve rod extends outwards from the pressure regulating valve 5), the limit switch 6 is used for detecting a preset highest position of the up-down movement converting shaft 19, and after the limit switch 6 senses the up-down movement converting shaft 19, the motor 11 stops working, and the converting shaft 7 is protected from unlimited upward movement.
Be equipped with limit switch support 2 on the mount pad, limit switch 6 sets up on limit switch support 2 along the axial height of up-and-down motion converting shaft 19 adjustably, is equipped with adjusting nut on the limit switch 6, through the adjustable mounted position of limit switch 6 on limit switch support 2 of adjusting nut to adjust limit switch 6's detection position, and then adjust the last spacing of the upward motion of up-and-down motion converting shaft 19.
The utility model discloses an automatic voltage regulating device realizes that automatic voltage regulation theory of operation as follows:
a driving wheel 8 on the stepping motor 11 is in transmission connection with a driven wheel 16 in the rotating mechanism 3 through a synchronous belt 9, when the stepping motor 11 rotates, the driving wheel 8 rotates along with the stepping motor, and the driven wheel 16 in the rotating mechanism 3 is integrally and fixedly connected with a rotating shaft sleeve 18; the rotating shaft sleeve 18 is flexibly connected with the up-down movement conversion shaft 19 through a bearing steel ball 17, and when the rotating shaft sleeve 18 rotates, the up-down movement conversion shaft 19 can rotate and move up and down; the pressure output by the pressure regulating valve 5 and the motor 11 can be subjected to closed-loop control, and the pressure can be accurately regulated according to the set pressure, so that dynamic pressure regulation can be realized.
When the valve rod of the pressure regulating valve 5 rotates anticlockwise to the maximum, the inlet and the outlet of the pressure regulating valve 5 are not communicated, and the valve is equivalent to a stop valve. The main purpose of pressure regulation is to regulate the pressure at the outlet of the pressure regulating valve, and assuming that the pressure at the inlet end of the pressure regulating valve 5 is 100PSI, the outlet of the pressure regulating valve needs 50PSI, and the specific implementation process is as follows:
the motor 11 rotates clockwise to drive the driven wheel 16 in the rotating mechanism 3 to rotate, and indirectly drives the up-and-down movement converting shaft 19 to rotate, so as to drive the valve rod of the pressure regulating valve 5 to rotate, so that the valve rod of the pressure regulating valve 5 moves downwards, the outlet pressure of the pressure regulating valve 5 slowly rises from 0PSI, when the outlet pressure of the pressure regulating valve 5 reaches 50PSI, the motor 11 stops rotating, and at the moment, the valve rod of the pressure regulating valve 5 also stops moving, and the pressure regulation is completed.
Although specific embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are merely examples and that many changes and modifications may be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims.
Claims (8)
1. The utility model provides an automatic pressure regulating device which characterized in that, includes air-vent valve, rotary mechanism and motor, wherein:
the rotating mechanism comprises an installation seat, a rotating shaft sleeve which is rotatably arranged on the installation seat and an up-and-down motion conversion shaft which is sleeved in the rotating shaft sleeve, wherein a plurality of semi-cylindrical guide grooves are axially formed in the inner wall of the rotating shaft sleeve and the outer wall of the up-and-down motion conversion shaft, the guide grooves in the rotating shaft sleeve and the guide grooves in the up-and-down motion conversion shaft are in one-to-one correspondence and form a cylindrical guide cavity, and a plurality of bearing steel balls are arranged in the guide cavity;
the pressure regulating valve is provided with a valve rod with a thread pair structure, the valve rod is connected with one end of the up-and-down motion converting shaft, and the valve rod and the up-and-down motion converting shaft are positioned on the same axis; the motor is in transmission connection with the rotating shaft sleeve, so that the motor drives the rotating shaft sleeve to rotate on the mounting seat, the rotating shaft sleeve drives the up-and-down motion conversion shaft to rotate through the bearing steel balls, the up-and-down motion conversion shaft drives the valve rod of the pressure regulating valve to rotate, and meanwhile, the valve rod of the pressure regulating valve drives the up-and-down motion conversion shaft to move freely in the rotating shaft sleeve along the axial direction.
2. The automatic pressure regulating device of claim 1, wherein the mounting base comprises an upper plate and a lower plate which are arranged in parallel up and down, and two bearings which are respectively embedded in the upper plate and the lower plate along the same axis, and the upper end and the lower end of the rotary shaft sleeve are respectively sleeved in the inner rings of the two bearings.
3. The automatic pressure regulating device of claim 2, wherein the rear side of the lower plate is provided with a connecting plate with the lower plate vertical, and the upper plate is connected to the connecting plate through bolts so that the mounting seat is in a U-shaped structure.
4. The automatic pressure regulating device of claim 3, wherein a driven wheel is tightly fitted on the rotating shaft sleeve between the upper plate and the lower plate, a switching shaft is connected to an end of an output shaft of the motor, a driving wheel is arranged on the switching shaft, and the driven wheel is connected with the driving wheel through a synchronous belt transmission so that the motor drives the driving wheel to rotate, thereby driving the synchronous belt to rotate, and further driving the driven wheel and the rotating shaft sleeve to rotate.
5. The automatic pressure adjustment apparatus of claim 1, wherein the motor is a stepper motor.
6. The automatic pressure regulating device according to any one of claims 1 to 5, further comprising a fixing plate, wherein the rotating mechanism is fixedly mounted on the fixing plate through a mounting seat, the motor is fixedly mounted on the fixing plate through a motor bracket on the side surface of the rotating mechanism, the pressure regulating valve is fixedly mounted below the rotating mechanism through a pressure regulating valve bracket, and a valve rod of the pressure regulating valve is axially consistent with an up-and-down movement converting shaft of the rotating mechanism.
7. The automatic pressure regulating device according to any one of claims 1 to 5, further comprising a limit switch disposed above the rotating mechanism, wherein a sensing end of the limit switch faces downward toward an upper end of the up-down movement converting shaft, and a lower end of the up-down movement converting shaft is connected to a valve stem of the pressure regulating valve.
8. The automatic pressure regulating device according to claim 7, wherein a limit switch bracket is provided on the mounting base, and the limit switch is height-adjustably provided on the limit switch bracket along an axial direction of the up-down movement converting shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020986533.2U CN211928446U (en) | 2020-06-02 | 2020-06-02 | Automatic pressure regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020986533.2U CN211928446U (en) | 2020-06-02 | 2020-06-02 | Automatic pressure regulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211928446U true CN211928446U (en) | 2020-11-13 |
Family
ID=73320220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020986533.2U Active CN211928446U (en) | 2020-06-02 | 2020-06-02 | Automatic pressure regulating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211928446U (en) |
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2020
- 2020-06-02 CN CN202020986533.2U patent/CN211928446U/en active Active
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