CN112797287A - DC mutual inductor checking and lifting device - Google Patents
DC mutual inductor checking and lifting device Download PDFInfo
- Publication number
- CN112797287A CN112797287A CN202110168005.5A CN202110168005A CN112797287A CN 112797287 A CN112797287 A CN 112797287A CN 202110168005 A CN202110168005 A CN 202110168005A CN 112797287 A CN112797287 A CN 112797287A
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- direct current
- current transformer
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- equipment
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- 230000001105 regulatory effect Effects 0.000 claims description 19
- 230000001276 controlling effect Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 230000007246 mechanism Effects 0.000 description 5
- 230000007306 turnover Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
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- 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
- F15B11/046—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed depending on the position of the working member
- F15B11/048—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed depending on the position of the working member with deceleration control
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- 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
- F15B21/087—Control strategy, e.g. with block diagram
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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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
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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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/10—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/005—Calibrating; Standards or reference devices, e.g. voltage or resistance standards, "golden" references
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention relates to a direct current transformer checking and lifting device, which is used for enabling an inverted direct current transformer checking device to rotate around a rotating shaft at the bottom end of the direct current transformer checking device and lift the top end of the direct current transformer checking device so as to erect the direct current transformer checking device. The invention can reduce the impact force applied to the direct current transformer calibration equipment in the overturning process by controlling the speed, thereby preventing the direct current transformer calibration equipment from being damaged in the jacking process.
Description
Technical Field
The invention belongs to the field of test devices, and particularly relates to a device for checking equipment of a Sancheng direct current transformer.
Background
In an extra-high voltage direct current field test, various adopted devices are generally large and heavy, a crane is required to be used for auxiliary operation, and field workers have high labor intensity and low efficiency. The high-voltage direct-current transformer calibration equipment is generally high, and is convenient to transport, the high-voltage direct-current transformer calibration equipment is usually inverted, and after the equipment arrives at a test site, the equipment is jacked up and erected through a hydraulic mechanism and the like, and after the test is finished, the equipment is laid down.
Mutual-inductor check-up equipment is generally more accurate, need avoid bearing too big impact force, and equipment shell is non-metallic material generally, also can't bear too big load. However, the existing device for jacking the transformer checking equipment cannot realize the over-impact function.
Disclosure of Invention
The invention aims to provide a direct current transformer calibration lifting device which can lift direct current transformer calibration equipment by controlling the speed in a segmented mode, so that the direct current transformer calibration equipment can be turned over stably, and the impact force is reduced.
In order to achieve the purpose, the invention adopts the technical scheme that:
a direct current transformer checking and lifting device is used for enabling inverted direct current transformer checking equipment to rotate around a rotating shaft at the bottom end of the direct current transformer checking equipment and lift at the top end of the direct current transformer checking equipment, so that the direct current transformer checking equipment is erected, and comprises an angle sensor, a control system, a speed regulating valve, an output unit, a power unit and an electromagnetic valve, wherein the angle sensor is used for detecting an angle formed by the axis of the direct current transformer checking equipment and the horizontal direction and outputting a corresponding angle detection signal, the speed regulating valve is used for controlling power on or off based on the angle detection signal, the output unit is used for driving the direct current transformer checking equipment to rotate and lift, the power unit is used for providing power with different speeds for the output unit in a subsection mode based on the power on or off of the speed regulating valve, the control system is used for controlling power on or off based on the state of the power unit, and the control system is respectively connected, The speed regulating valve, the electromagnetic valve and the power unit are connected, and the electromagnetic valve is connected with the output unit.
The power unit comprises a hydraulic station, and the output unit comprises a hydraulic cylinder.
Dividing the range [0 degree and 90 degrees ] of the angle between the axis of the direct current transformer calibration equipment and the horizontal direction into three intervals [0 degree, a degree ], (a degree, b degree), [ b degree and 90 degrees ], wherein a is less than b, when the angle between the axis of the direct current transformer calibration equipment and the horizontal direction is in the interval of [0 degrees, a degrees ], the power unit provides power with the speed of A for the output unit, when the angle between the axis of the direct current transformer calibration equipment and the horizontal direction is in the range of (a degrees and B degrees), the power unit provides power with the speed of B for the output unit, when the angle between the axis of the direct current transformer checking equipment and the horizontal direction is in the interval of [ b degrees, 90 degrees ], the power unit provides power with the speed of C for the output unit, wherein B is larger than A, and B is larger than C.
a=5，b=81。
The angle sensor is arranged at the bottom end of the direct current transformer calibration equipment.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the invention can reduce the impact force applied to the direct current transformer calibration equipment in the overturning process by controlling the speed, thereby preventing the direct current transformer calibration equipment from being damaged in the jacking process.
Drawings
Fig. 1 is a schematic diagram of a dc transformer calibration lifting device of the present invention.
In the above drawings: 1. a power unit; 2. an angle sensor; 3. an electromagnetic valve; 4. a speed regulating valve; 5. a force output unit; 6. a platform; 7. a turnover mechanism; 8. direct current transformer check-up equipment.
Detailed Description
The invention will be further described with reference to examples of embodiments shown in the drawings to which the invention is attached.
The first embodiment is as follows: as shown in fig. 1, a dc transformer calibration lifting device for enabling an inverted dc transformer calibration apparatus 8 to rotate around a rotating shaft at a bottom end thereof and lift (i.e. turn over) the top end thereof, thereby erecting the dc transformer calibration apparatus 8, includes an angle sensor 2, a control system, a speed regulating valve 4, a force output unit 5, a power unit 1 and a solenoid valve 3, wherein the control system is respectively connected with the angle sensor 2, the speed regulating valve 4, the solenoid valve 3 and the power unit 1, and the solenoid valve 3 is connected with the force output unit 5.
The angle sensor 2 is arranged at the bottom end of the direct current transformer calibration device 8 and used for detecting an angle formed between the axis of the direct current transformer calibration device 8 and the horizontal direction and outputting a corresponding angle detection signal to the control system, and the control system controls the power on or power off of the speed regulating valve 4 based on the angle detection signal. The output unit 5 is used for driving the direct current transformer calibration equipment 8 to rotate and lift, and the power unit 1 provides power with different speeds for the output unit 5 in sections based on power on or power off of the speed regulating valve 4. The solenoid valve 3 is controlled by the control system to be energized or de-energized based on the state of the power unit 1. The power unit 1 comprises a hydraulic station and the power unit 5 comprises a hydraulic cylinder.
The range [0 degrees and 90 degrees ] of an angle formed by the axis of the direct current transformer calibration equipment 8 and the horizontal direction is divided into three intervals [0 degrees, a degrees ], (a degrees, b degrees), [ b degrees and 90 degrees ], wherein a is less than b, and the span of the second interval is large. When the angle between the axis of the direct current transformer checking device 8 and the horizontal direction is in the range of [0 degrees and a degrees ], the power unit 1 provides power with the speed of A for the output unit 5, when the angle between the axis of the direct current transformer checking device 8 and the horizontal direction is in the range of (a degrees and B degrees), the power unit 1 provides power with the speed of B for the output unit 5, and when the angle between the axis of the direct current transformer checking device 8 and the horizontal direction is in the range of [ B degrees and 90 degrees ], the power unit 1 provides power with the speed of C for the output unit 5, B is larger than A, and B is larger than C. In the present embodiment, a =5, b =81, and a = C. The angle value may be calculated only in integer numbers.
In the above scheme, a platform 6 can be arranged, a turnover mechanism 7 capable of being turned over is arranged on the platform 6, a direct current transformer calibration device 8 is arranged on the turnover mechanism 7, and then the power unit 1 and the driving unit drive the direct current transformer calibration device 8 to be turned over by driving the turnover mechanism 7.
The hydraulic pressure station starts, makes 3 solenoid valves energized through control system, and angle sensor 2 feeds back the angle that 8 check-up equipment of direct current transformer are located, if the angle is 0 ~5, makes 4 governing valves energized, through the regulatory action of 4 governing valves, makes the output speed of power pack 1 reduce, and then 8 check-up equipment of direct current transformer's upset speed reduces. When the feedback angle value of the angle sensor 2 is 6-80 degrees, the speed regulating valve 4 is de-energized, the output speed of the power unit 1 is increased, and quick overturning can be realized. When the feedback angle value of the angle sensor 2 is 81-90 degrees, the speed regulating valve 4 is powered on, the output speed of the power unit 1 is reduced through the regulating action of the speed regulating valve 4, and the overturning speed of the equipment is reduced.
In the process, the turning speed of the equipment near the starting point and the end point is reduced through the adjusting function of the speed regulating valve 4, the speed of the middle part of turning is increased, so that the equipment is not subjected to overlarge impact force in the turning process, the turning time can be shortened, and the field work efficiency is improved.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a direct current transformer check-up lifting devices for make the direct current transformer check-up equipment of invering rotate around the pivot of its bottom department, the top lifts, thereby will direct current transformer check-up equipment erects its characterized in that: the direct current transformer checking and lifting device comprises an angle sensor, a control system, a speed regulating valve, an output unit, a power unit and an electromagnetic valve, wherein the angle sensor is used for detecting an angle formed by an axis of direct current transformer checking equipment and the horizontal direction and outputting a corresponding angle detection signal, the speed regulating valve is used for controlling power on or off by the control system based on the angle detection signal, the output unit is used for driving the direct current transformer checking equipment to rotate and lift, the power unit is used for providing power with different speeds for the output unit in a subsection mode based on the power on or off of the speed regulating valve, the electromagnetic valve is used for controlling the power on or off by the control system based on the state of the power unit, the control system is respectively connected with the angle sensor, the speed regulating valve, the electromagnetic valve and the power unit, and the electromagnetic valve is connected with.
2. The direct current transformer calibration lifting device of claim 1, wherein: the power unit comprises a hydraulic station, and the output unit comprises a hydraulic cylinder.
3. The direct current transformer calibration lifting device of claim 1, wherein: dividing the range [0 degree and 90 degrees ] of the angle between the axis of the direct current transformer calibration equipment and the horizontal direction into three intervals [0 degree, a degree ], (a degree, b degree), [ b degree and 90 degrees ], wherein a is less than b, when the angle between the axis of the direct current transformer calibration equipment and the horizontal direction is in the interval of [0 degrees, a degrees ], the power unit provides power with the speed of A for the output unit, when the angle between the axis of the direct current transformer calibration equipment and the horizontal direction is in the range of (a degrees and B degrees), the power unit provides power with the speed of B for the output unit, when the angle between the axis of the direct current transformer checking equipment and the horizontal direction is in the interval of [ b degrees, 90 degrees ], the power unit provides power with the speed of C for the output unit, wherein B is larger than A, and B is larger than C.
4. The direct current transformer calibration lifting device according to claim 3, wherein: a =5 and b = 81.
5. The direct current transformer calibration lifting device of claim 1, wherein: the angle sensor is arranged at the bottom end of the direct current transformer calibration equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110168005.5A CN112797287A (en) | 2021-02-07 | 2021-02-07 | DC mutual inductor checking and lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110168005.5A CN112797287A (en) | 2021-02-07 | 2021-02-07 | DC mutual inductor checking and lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112797287A true CN112797287A (en) | 2021-05-14 |
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ID=75814718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110168005.5A Pending CN112797287A (en) | 2021-02-07 | 2021-02-07 | DC mutual inductor checking and lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112797287A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113655256A (en) * | 2021-07-07 | 2021-11-16 | 国网浙江省电力有限公司营销服务中心 | Air cushion type buffer device, extra-high voltage generator and vertical lifting method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0286597A (en) * | 1988-05-09 | 1990-03-27 | Etsuhara Yoshitada | Jib derricking speed controller for constructional tower crane |
| JP2006347502A (en) * | 2005-06-20 | 2006-12-28 | Hitachi Constr Mach Co Ltd | Conveying vehicle |
| CN1916429A (en) * | 2005-08-11 | 2007-02-21 | 神钢建设机械株式会社 | Control device for hydraulic cylinder and operating machine including control device |
| US20140151078A1 (en) * | 2012-06-08 | 2014-06-05 | Soilmec S.P.A. | Method and system for controlling the movement of a mast of a drilling machine, in particular for obtaining piles |
| CN106837901A (en) * | 2017-04-12 | 2017-06-13 | 北京机械设备研究所 | A kind of Erecting System control method for reducing hydraulic starting impact |
| CN111422122A (en) * | 2020-04-24 | 2020-07-17 | 东风商用车有限公司 | Vehicle electric control lifting control system matched with manual transmission and method thereof |
| CN214405368U (en) * | 2021-02-07 | 2021-10-15 | 国网浙江省电力有限公司营销服务中心 | DC mutual inductor checking and lifting device |
-
2021
- 2021-02-07 CN CN202110168005.5A patent/CN112797287A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0286597A (en) * | 1988-05-09 | 1990-03-27 | Etsuhara Yoshitada | Jib derricking speed controller for constructional tower crane |
| JP2006347502A (en) * | 2005-06-20 | 2006-12-28 | Hitachi Constr Mach Co Ltd | Conveying vehicle |
| CN1916429A (en) * | 2005-08-11 | 2007-02-21 | 神钢建设机械株式会社 | Control device for hydraulic cylinder and operating machine including control device |
| US20140151078A1 (en) * | 2012-06-08 | 2014-06-05 | Soilmec S.P.A. | Method and system for controlling the movement of a mast of a drilling machine, in particular for obtaining piles |
| CN106837901A (en) * | 2017-04-12 | 2017-06-13 | 北京机械设备研究所 | A kind of Erecting System control method for reducing hydraulic starting impact |
| CN111422122A (en) * | 2020-04-24 | 2020-07-17 | 东风商用车有限公司 | Vehicle electric control lifting control system matched with manual transmission and method thereof |
| CN214405368U (en) * | 2021-02-07 | 2021-10-15 | 国网浙江省电力有限公司营销服务中心 | DC mutual inductor checking and lifting device |
Non-Patent Citations (1)
| Title |
|---|
| 于国红;杨翰元;刘俊平;陈惠贤;: "装载机发动机与液力变矩器匹配优化", 机械与电子, no. 08, 24 August 2013 (2013-08-24), pages 50 - 52 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113655256A (en) * | 2021-07-07 | 2021-11-16 | 国网浙江省电力有限公司营销服务中心 | Air cushion type buffer device, extra-high voltage generator and vertical lifting method |
| CN113655256B (en) * | 2021-07-07 | 2022-05-27 | 国网浙江省电力有限公司 | Air cushion type buffer device, extra-high voltage generator and vertical lifting method |
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