CN112555235A - Self-control hydraulic pressure source system - Google Patents
Self-control hydraulic pressure source system Download PDFInfo
- Publication number
- CN112555235A CN112555235A CN202011548845.6A CN202011548845A CN112555235A CN 112555235 A CN112555235 A CN 112555235A CN 202011548845 A CN202011548845 A CN 202011548845A CN 112555235 A CN112555235 A CN 112555235A
- Authority
- CN
- China
- Prior art keywords
- pressure
- source system
- driving
- data processor
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
Abstract
The invention relates to the technical field of mechanical and electrical integration, and particularly discloses a self-control hydraulic pressure source system, which comprises: the upper computer is used for setting the pressure of the verification point and the voltage increasing and decreasing rate and generating a corresponding control instruction; the data processor is used for generating a driving signal according to a control instruction of the upper computer; the driving device is used for driving the pressure adjusting device to work according to the driving signal; the pressure regulating device is used for outputting hydraulic medium with corresponding pressure through the output pipeline under the driving of the driving device; the standard meter is respectively connected with the output pipeline of the pressure regulating device and the data processor and is used for detecting the output pressure value of the pressure regulating device and sending the output pressure value to the data processor; the data processor can stop generating the driving signal when the output pressure value reaches the pressure of the verification point; the output pipeline of the pressure regulating device is also connected with the instrument to be detected. The automatic control hydraulic pressure source system provided by the invention improves the detection efficiency of the instrument.
Description
Technical Field
The invention relates to the technical field of mechanical and electrical integration, in particular to a self-control hydraulic pressure source system.
Background
According to the regulations, instrument instruments (hereinafter collectively referred to as instruments) such as a pointer type mechanical pressure gauge, a pressure transmitter, a differential pressure transmitter, a pressure switch, a digital pressure gauge, a pressure sensor, an I/P controller/positioner and the like need to be regularly detected so as to ensure that the tested data can meet the required precision requirement; the metering detection is finished in a detection mechanism with related qualification, and a qualified instrument can obtain a metering calibration certificate of a metering verification certificate issued by the qualified detection mechanism.
The measuring range of the instrument has high or low, a pressure source is required to provide pressure required by detection during detection, a medium generating pressure in the pressure source can be gas (compressed air, nitrogen and the like) or liquid (oil, water and the like), and the reading of the instrument to be detected needs to be read when the medium pressure reaches each detection point during detection, so that whether the testing precision is qualified is determined.
The conventional manual pressure source is not only inefficient, but also has a bad influence on the accuracy of detection because it is difficult to accurately control the pressure to the pressure of each detection point at one time. There are two main categories of existing automatic pressure sources: one type uses gas as medium, needs to be equipped with devices such as a pressurizing pump and the like, not only has complex structure and high price, but also has the highest pressure of only about 6 MPa. The other type is a gas-liquid driving mode, and has the defects of complex structure, high price, requirement of an external gas source or allocation of a pressurizing pump and the like.
Disclosure of Invention
The invention provides an automatic control hydraulic pressure source system, which solves the problem of lack of a high-efficiency pressure source system in the related technology.
As an aspect of the present invention, there is provided an autonomous hydraulic pressure source system, comprising:
the upper computer is used for setting the pressure of the verification point and the voltage increasing and decreasing rate and generating a corresponding control instruction;
the data processor is in communication connection with the upper computer and is used for generating a driving signal according to a control instruction of the upper computer;
the driving device is in communication connection with the data processor and is used for driving the pressure adjusting device to work according to the driving signal;
the pressure adjusting device is connected with the driving device and used for outputting hydraulic medium with corresponding pressure through an output pipeline under the driving of the driving device;
the standard meter is respectively connected with the output pipeline of the pressure regulating device and the data processor and is used for detecting the output pressure value of the pressure regulating device and sending the output pressure value to the data processor;
the data processor can stop generating the driving signal when the output pressure value reaches the verification point pressure;
and the output pipeline of the pressure regulating device is also connected with an instrument to be detected.
Further, the driving device includes:
the motor can rotate under the driving of the driving signal;
and the speed reducer is connected with an output shaft of the motor and is used for rotating under the driving of the motor.
Further, the pressure adjusting device includes:
the transmission mechanism is connected with the output end of the speed reducer and is used for moving when the speed reducer rotates;
the plunger is connected with the transmission mechanism and can move in and out of the hydraulic cylinder when the transmission mechanism moves;
the hydraulic cylinder is connected with the plunger;
and the output pipeline is connected with the hydraulic cylinder and used for outputting the hydraulic medium.
Further, the transmission mechanism includes:
one end of the screw rod is connected with the speed reducer, and the other end of the screw rod is connected with the plunger and can rotate when the speed reducer rotates;
the sliding block is meshed with the screw rod and can translate on the sliding mechanism when the screw rod rotates so as to drive the plunger connected with the screw rod to move in and out of the hydraulic cylinder;
and the sliding mechanism is connected with the sliding block and is used for providing a track for the sliding block to translate.
Further, the sliding mechanism includes a guide rail or a slide groove.
Further, the other end of the screw rod is connected with the plunger through a connecting sleeve.
Furthermore, one end of the screw rod is connected with the speed reducer through a coupler.
Further, the motor includes any one of a servo motor, a stepping motor, and a motor.
Further, the detection meter includes a pressure transmitter.
Further, the data processor comprises a single chip microcomputer or a PLC controller.
The automatic control hydraulic pressure source system provided by the invention accurately controls the output hydraulic pressure of the pressure regulating device according to the pressure of the calibration point preset by the upper computer and the pressure increasing and decreasing rate, the accuracy of the accurate control can reach micron level, the high accuracy requirement of the detection of a low-pressure to high-pressure instrument can be met, the full automation can be realized through the control of the upper computer and the data processor, the detection efficiency of the instrument is improved, and the system also has the advantages of simple structure, low manufacturing cost and the like.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a schematic structural diagram of an automatic hydraulic pressure source system provided by the invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the invention herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this embodiment, an automatic control hydraulic pressure source system is provided, and fig. 1 is a schematic structural diagram of the automatic control hydraulic pressure source system according to an embodiment of the present invention, as shown in fig. 1, including:
the upper computer 14 is used for setting the pressure of the verification point and the voltage increasing and decreasing rate and generating corresponding control instructions;
the data processor 15 is in communication connection with the upper computer 14 and is used for generating a driving signal according to a control instruction of the upper computer 14;
the driving device is connected with the data processor 15 in a communication mode and is used for driving the pressure adjusting device to work according to the driving signal;
the pressure adjusting device is connected with the driving device and used for outputting hydraulic medium with corresponding pressure through an output pipeline under the driving of the driving device;
the standard meter 12 is respectively connected with the output pipeline 10 of the pressure regulating device and the data processor 15, and is used for detecting the output pressure value of the pressure regulating device and sending the output pressure value to the data processor 15;
the data processor 15 is capable of stopping generating the drive signal when the output pressure value reaches the verification point pressure;
the output pipeline of the pressure regulating device is also connected with the meter to be detected 11.
According to the automatic control hydraulic pressure source system provided by the embodiment of the invention, the output hydraulic pressure of the pressure regulating device is accurately controlled according to the pressure of the calibration point preset by the upper computer and the pressure increasing and decreasing rate, the precision of the accurate control can reach micron level, the high-precision requirement of the detection of a low-pressure to high-pressure instrument can be met simultaneously, the full automation can be realized through the control of the upper computer and the data processor, the detection efficiency of the instrument is improved, and the system also has the advantages of simple structure, low manufacturing cost and the like.
It should be noted that, in the embodiment of the present invention, the hydraulic medium may specifically be hydraulic oil.
Specifically, as shown in fig. 1, the driving device includes:
a motor 1 capable of rotating under the drive of the drive signal;
and the speed reducer 2 is connected with an output shaft of the motor 1 and is used for rotating under the driving of the motor.
In some embodiments, the motor 1 includes any one of a servo motor, a stepping motor, and a motor.
In some embodiments, the data processor 15 is connected to the motor 1 via a first data line 16, and the criteria table 12 is connected to the data processor 15 via a second data line 13.
The rising and falling rates and the pressures of all the verification points are set in the upper computer 14 and are sent to the data processor 15, and the data processor 15 accurately controls the rotating speed of the motor 1 according to the rates.
It should be noted that the upper computer 14 may also be implemented by a control button or a touch screen, and controls the lifting, lowering, pressure maintaining, and the like manually.
In some embodiments, the data processor 15 comprises a single chip or a PLC controller.
Specifically, as shown in fig. 1, the pressure adjusting device includes:
the transmission mechanism is connected with the output end of the speed reducer and is used for moving when the speed reducer rotates;
the plunger 8 is connected with the transmission mechanism and can move in and out of the hydraulic cylinder when the transmission mechanism moves;
the hydraulic cylinder 9 is connected with the plunger 8;
and the output pipeline 10 is connected with the hydraulic cylinder 9 and is used for outputting a hydraulic medium.
It will be appreciated that the pressure regulating components, which are centered by the plunger 8 and the hydraulic cylinder 9, allow for precise control of the medium output pressure by controlling the rate of displacement of the plunger into and out of the hydraulic cylinder.
Specifically, as shown in fig. 1, the transmission mechanism includes:
one end of the screw rod 4 is connected with the speed reducer 2, and the other end of the screw rod is connected with the plunger 8 and can rotate when the speed reducer 2 rotates;
the sliding block 6 is meshed with the screw rod 4 and can translate on the sliding mechanism 5 when the screw rod 4 rotates so as to drive the plunger 8 connected with the screw rod 4 to move in and out of the hydraulic cylinder 9;
and the sliding mechanism 5 is connected with the sliding block 6 and is used for providing a track for the sliding block 6 to translate.
Preferably, the sliding mechanism 5 comprises a guide rail or a sliding groove.
Specifically, when the motor 1 and the speed reducer 2 rotate, the screw rod 4 is driven to rotate, the sliding block 6 engaged with the screw rod 4 is enabled to translate on the sliding mechanism 5, and then the plunger 8 connected with the screw rod 4 is driven to move in and out of the hydraulic cylinder 9. When the plunger 8 gradually extends into the hydraulic cylinder 9, the output pressure gradually rises, otherwise, the pressure drops; the data processor 15 can accurately control the voltage increasing and reducing rates by accurately controlling the rotating speed of the motor 1.
When the media pressure equals the set checkpoint pressure, the data processor 15 controls the motor (1) to stop rotating, the output pressure stops at the checkpoint pressure, and the pressure reading of the meter under test 11 is read and recorded at this point. The control precision of the automatic control hydraulic pressure source system to the displacement of the plunger 8 can reach micron level, so the precision control to the output pressure can reach more than one thousandth, and the detection requirement of the measuring precision of the instrument is completely met.
In some embodiments, the other end of the lead screw 4 is connected to the plunger 8 through a coupling sleeve 7.
In some embodiments, one end of the screw rod 4 is connected with the speed reducer 2 through a coupling 3.
Preferably, the detection meter 12 comprises a pressure transmitter.
The automatic control hydraulic pressure source system provided by the embodiment of the invention comprises a hydraulic cylinder (with a fluid infusion port), a plunger, a matched motor (a servo motor, a stepping motor or other motors), a speed reducer, a screw rod, a translation guide rail (or a chute and the like), a slide block, a connecting sleeve, a standard meter (a pressure transmitter), a data processor, an upper computer and a data line, thereby providing a pressure source capable of accurately controlling pressure for instrument detection.
The specific working principle and process are as follows: the instrument 11 to be detected and a standard meter 12 (a pressure transmitter) are connected to an output pipeline of the hydraulic cylinder, and the standard meter 12 (the pressure transmitter) inputs a pressure signal into the data processor 15, so that the medium output pressure can be accurately measured, and a control feedback signal is provided for controlling the voltage increase and decrease. During operation, the upper computer 14 sets the pressure increasing and reducing rates and the pressures of the verification points, and sends the pressure increasing and reducing rates and the pressures to the data processor 15, and the data processor 15 accurately controls the rotating speed of the motor 1 according to the pressure increasing and reducing rates and the pressures. When the motor 1 and the speed reducer 2 rotate, the screw rod 4 is driven to rotate, the sliding block 6 meshed with the screw rod 4 is enabled to translate on the guide rail, and then the plunger 8 connected with the screw rod 4 through the connecting sleeve 7 is driven to move into and out of the hydraulic cylinder 9. When the plunger 8 gradually extends into the hydraulic cylinder 9, the output pressure gradually rises, otherwise, the pressure drops; the data processor 15 can accurately control the voltage rising and reducing rates by accurately controlling the rotating speed of the motor 1; when the output pressure equals the set checkpoint pressure, the data processor 15 controls the motor to stop rotating, the output pressure stops at the checkpoint pressure, and the pressure reading of the meter under test 11 is read and recorded at this point. The automatic control hydraulic pressure source system provided by the embodiment of the invention can control the displacement of the plunger 8 to be in micron order, so that the precision control of the output pressure can be more than one thousandth, and the detection requirement of the measurement precision of the instrument can be completely met.
It should be noted that the pressure degree of the meter to be tested 11 can be realized by an automatic detection method, and specifically, the pressure degree can be realized by an "automatic detection device for mechanical pointer type meter" disclosed in application No. 202010753060.6, which is not described herein again.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (10)
1. An autonomous hydraulic pressure source system, comprising:
the upper computer is used for setting the pressure of the verification point and the voltage increasing and decreasing rate and generating a corresponding control instruction;
the data processor is in communication connection with the upper computer and is used for generating a driving signal according to a control instruction of the upper computer;
the driving device is in communication connection with the data processor and is used for driving the pressure adjusting device to work according to the driving signal;
the pressure adjusting device is connected with the driving device and used for outputting hydraulic medium with corresponding pressure through an output pipeline under the driving of the driving device;
the standard meter is respectively connected with the output pipeline of the pressure regulating device and the data processor and is used for detecting the output pressure value of the pressure regulating device and sending the output pressure value to the data processor;
the data processor can stop generating the driving signal when the output pressure value reaches the verification point pressure;
and the output pipeline of the pressure regulating device is also connected with an instrument to be detected.
2. The self-regulating hydraulic pressure source system of claim 1, wherein the drive means comprises:
the motor can rotate under the driving of the driving signal;
and the speed reducer is connected with an output shaft of the motor and is used for rotating under the driving of the motor.
3. The self-regulating hydraulic pressure source system of claim 2, wherein the pressure regulating device comprises:
the transmission mechanism is connected with the output end of the speed reducer and is used for moving when the speed reducer rotates;
the plunger is connected with the transmission mechanism and can move in and out of the hydraulic cylinder when the transmission mechanism moves;
the hydraulic cylinder is connected with the plunger;
and the output pipeline is connected with the hydraulic cylinder and used for outputting the hydraulic medium.
4. The self-regulating hydraulic pressure source system of claim 3, wherein the transmission mechanism comprises:
one end of the screw rod is connected with the speed reducer, and the other end of the screw rod is connected with the plunger and can rotate when the speed reducer rotates;
the sliding block is meshed with the screw rod and can translate on the sliding mechanism when the screw rod rotates so as to drive the plunger connected with the screw rod to move in and out of the hydraulic cylinder;
and the sliding mechanism is connected with the sliding block and is used for providing a track for the sliding block to translate.
5. The self-regulating hydraulic pressure source system of claim 4, wherein the sliding mechanism comprises a rail or a chute.
6. The self-regulating hydraulic pressure source system of claim 4, wherein the other end of the lead screw is connected to the plunger by a coupling sleeve.
7. The self-controlled hydraulic pressure source system of claim 4, wherein one end of the screw rod is connected to the reducer through a coupling.
8. The self-regulating hydraulic pressure source system of claim 2, wherein the electric motor comprises any one of a servo motor, a stepper motor and a motor.
9. The self-regulating hydraulic pressure source system of claim 1, wherein the sensing gauge comprises a pressure transducer.
10. The self-regulating hydraulic pressure source system of claim 1, wherein the data processor comprises a single chip or a PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011548845.6A CN112555235A (en) | 2020-12-24 | 2020-12-24 | Self-control hydraulic pressure source system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011548845.6A CN112555235A (en) | 2020-12-24 | 2020-12-24 | Self-control hydraulic pressure source system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112555235A true CN112555235A (en) | 2021-03-26 |
Family
ID=75033232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011548845.6A Pending CN112555235A (en) | 2020-12-24 | 2020-12-24 | Self-control hydraulic pressure source system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112555235A (en) |
-
2020
- 2020-12-24 CN CN202011548845.6A patent/CN112555235A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106481617A (en) | A kind of hydraulic motor test platform and method of testing | |
| CN207881664U (en) | A kind of intelligent calibrating device of draw-wire displacement sensor | |
| CN113029434B (en) | Control method of pressure control system of liquid medium for measuring precision detection of pressure instrument | |
| CN105571648A (en) | Multifunctional robot joint performance test system | |
| CN104949740A (en) | Automatic metrological verification device and method of liquidometers | |
| CN107478382A (en) | A kind of manometer automatic detection device and its detection method | |
| CN102564707B (en) | Device for detecting water leakage of gate and control method thereof | |
| CN214200488U (en) | Pressure precision output device of liquid medium for pressure instrument measurement precision detection | |
| CN214533831U (en) | Self-control hydraulic pressure source system | |
| CN112555235A (en) | Self-control hydraulic pressure source system | |
| CN105136037B (en) | A kind of driven gear end pulsation measurement device | |
| CN1137370C (en) | Image-type automatic calibrating instrument for micrometer gauge or dial gauge | |
| CN1325891C (en) | Full-automatic accurate pressure testing control instrument | |
| CN113029433B (en) | Pressure control system and method for gas medium for pressure instrument measurement accuracy detection | |
| CN214373117U (en) | Pressure instrument measurement accuracy detects with gas medium's accurate output device of pressure | |
| CN215004083U (en) | Static pressure characteristic testing device of differential pressure transmitter | |
| CN108240889B (en) | Device and method for calibrating high static pressure differential pressure device | |
| CN205505894U (en) | Gear ring radial runout measures automatic correcting device | |
| CN111515080B (en) | Method for simultaneously calibrating and compensating double-point rubber needle tube | |
| CN208254517U (en) | The detection device of cold rolling mill oil cylinder position sensor | |
| CN112525794A (en) | Portable automatic tester and testing method for surface air permeability of material | |
| CN208254957U (en) | STRENGTH TESTING OF PIPE LINES and data-storage system | |
| CN112393706A (en) | Fuel cell bipolar plate thickness measuring device and method | |
| CN111473913A (en) | Automatic calibrator for pressure instrument | |
| CN208765634U (en) | A kind of oil cylinder internal diameter automatic checkout equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |