CN213985487U - Loading and unloading machine load sensor and load amplifier calibration device - Google Patents
Loading and unloading machine load sensor and load amplifier calibration device Download PDFInfo
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- CN213985487U CN213985487U CN202023278251.6U CN202023278251U CN213985487U CN 213985487 U CN213985487 U CN 213985487U CN 202023278251 U CN202023278251 U CN 202023278251U CN 213985487 U CN213985487 U CN 213985487U
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Abstract
The utility model belongs to the technical field of debugging tools of nuclear power plants, in particular to a loading and unloading machine load sensor and load amplifier calibration device, which comprises a manual hydraulic pump, a pressure gauge, a hydraulic piston cylinder, a fixing nut, a supporting disk, a supporting column, a load sensor, a fixing bolt, a signal line, a chassis, a connecting wire and a load amplifier; the tool has the advantages of simple design, compact structure, convenient operation, low maintenance cost, improvement of working efficiency, more accurate calibration of the load sensor and the load amplifier, and improvement of the safety of nuclear fuel during operation.
Description
Technical Field
The utility model belongs to the technical field of the debugging tool of nuclear power plant, concretely relates to loading and unloading machine load sensor and load amplifier calibration device.
Background
Nuclear power plants operate on nuclear fuel assemblies during overhaul using loaders. The loader load sensor is used for measuring the load when the loader gripping apparatus grips the nuclear fuel assembly.
An operator judges whether the nuclear fuel assembly is grabbed in place by the grab and whether the nuclear fuel assembly normally ascends or descends in the telescopic sleeve of the loading and unloading machine through the load, so that the load parameter is a very critical numerical value when the loading and unloading machine grabs the nuclear fuel.
The main problem currently exists is that the loading and unloading machine is in the nuclear island during normal operation of the unit, and the nuclear island can only be accessed during the period of refueling and overhaul.
If the load sensor and the load amplifier spare parts can be calibrated and checked before overhaul, the usability of the spare parts can be found as early as possible, so that the spare parts which are replaced when the spare parts need to be replaced during overhaul are all usable, and the main line overhaul time is prevented from being delayed due to the unavailability of the spare parts.
SUMMERY OF THE UTILITY MODEL
To above not enough, the utility model aims at providing a loading and unloading machine load sensor and load amplifier calibration device to reduce and eliminate adverse factor, effectively guarantee loading and unloading machine gripping apparatus reliability.
The technical scheme of the utility model as follows:
a calibration device for a loading sensor and a load amplifier of a material handling machine comprises a manual hydraulic pump, a pressure gauge, a hydraulic piston cylinder, a fixing nut, a supporting plate, a supporting column, a load sensor, a fixing bolt, a signal wire, a chassis, a connecting wire and a load amplifier;
the manual hydraulic pump is connected with the hydraulic piston cylinder through a threaded joint;
the pressure gauge is connected with the manual hydraulic pump through threads;
the hydraulic piston cylinder is fixed on the supporting plate through a fixing nut.
The supporting disk is of a square structure and is fixedly welded with the supporting column.
The support column is of a cylindrical structure and is fixedly welded with the support disc and the chassis.
The base plate is of a square structure and is welded and fixed with the support column, and 4 bolt holes are formed in the base plate and used for installing the load sensor.
The load sensor is arranged at the central position of the chassis and is connected with the load amplifier through a signal wire.
The bolt hole on the chassis is connected with the fixing bolt; the fixing bolt is a hexagon bolt.
The load amplifier is connected with the load sensor through a signal line, and the load amplifier amplifies a load signal and then sends the amplified load signal to the special computer through a connecting line to display a load numerical value.
The beneficial effects of the utility model reside in that:
1) the tool has simple design, compact structure, convenient operation, low maintenance cost and improved working efficiency.
2) The load sensor and the load amplifier can be calibrated more accurately, and the safety of the nuclear fuel during operation is improved.
Drawings
Fig. 1 is the utility model discloses a loading and unloading machine load sensor and load amplifier calibration device schematic structure.
In the figure: 1-manual hydraulic pump 2-manometer 3-hydraulic piston cylinder 4-fixation nut 5-supporting disk 6-support column.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
A calibration device for a loading and unloading machine load sensor and a load amplifier comprises a manual hydraulic pump 1, a pressure gauge 2, a hydraulic piston cylinder 3, a fixing nut 4, a supporting plate 5, a supporting column 6, a load sensor 7, a fixing bolt 8, a signal line 9, a chassis 10, a connecting line 11 and a load amplifier 12.
The manual hydraulic pump 1 is connected with the hydraulic piston cylinder 3 through a threaded joint, and the manual hydraulic pump 1 provides power for the hydraulic piston cylinder 3;
the pressure gauge 2 is connected with the manual hydraulic pump 1 through threads, and the pressure gauge 2 displays the hydraulic oil pressure in the manual hydraulic pump 1, namely the pressure in the hydraulic piston cylinder 3;
the hydraulic piston cylinder 3 is fixed on a support plate 5 through a fixing nut 4;
the supporting disc 5 is of a square structure and is fixedly welded with the supporting column 6;
the support column 6 is of a cylindrical structure and is fixedly welded with the support disc 5 and the chassis 10;
the base plate 10 is of a square structure and is welded and fixed with the support column 6, and 4 bolt holes are formed in the base plate and used for mounting the load sensor 7;
the load sensor 7 is arranged at the central position of the chassis 10 and is connected with a load amplifier 12 through a signal wire 9;
the fixing bolt 8 is a hexagon bolt and is connected with a bolt hole on the chassis 10;
the load amplifier 12 is connected with the load sensor 7 through a signal line 9, and the load amplifier 12 amplifies a load signal and then sends the amplified load signal to a special computer through a connecting line 11 for displaying a load numerical value.
A loading and unloading machine load sensor and load amplifier calibration device use step as follows:
the method comprises the following steps: the hydraulic oil is pressed into the hydraulic piston cylinder 3 by manually operating the hydraulic pump 1, so that the hydraulic piston cylinder 3 moves downwards to apply force to the load sensor 7, and the applied force is obtained by F-P-S, wherein P is the pressure of the hydraulic piston cylinder 3 and can be displayed by a pressure gauge 2; s is the area of the piston of the hydraulic piston cylinder 3 and is a fixed value;
step two: the viewing load amplifier 12 transmits the load signal via signal line 11 to the force F1 displayed on the dedicated computer;
step three: calculating the output force F under a certain pressure P, comparing the output force F with the force F1 displayed on a special computer, if the difference value between the F and the F1 is within the required error range, indicating that the load sensor has no fault and is calibrated, and if the difference value exceeds the specified deviation, indicating that the load sensor has a fault and needs to be repaired;
step four: the force F acting on the load sensor 7 can be calculated by operating the manual hydraulic pump 1 to enable the pressure displayed by the pressure gauge 2 to be P, the load amplifier 12 and the load sensor 7 are connected with a special computer through a signal line 9 and an information line 11, the load amplifier 12 is initially set according to a set program of the load amplifier 12, the known force needed when the load amplifier 12 is set is the force F calculated when the pressure P is needed, the load amplifier 12 is verified by operating the manual hydraulic pump 1 to change the pressure P displayed by the pressure gauge 2 after the setting is finished, and whether the calibrated load amplifier 12 is qualified or not is judged by comparing the force F1 displayed on the computer with the force F calculated according to the pressure P within a required error range.
It should be noted that, in the description of the present invention, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means at least two unless otherwise specified.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
In the drawings of the disclosed embodiments of the present invention, only the methods related to the disclosed embodiments are referred to, and other methods can refer to the general design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;
the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A calibration device for a loading sensor and a load amplifier of a material handling machine comprises a manual hydraulic pump, a pressure gauge, a hydraulic piston cylinder, a fixing nut, a supporting plate, a supporting column, a load sensor, a fixing bolt, a signal wire, a chassis, a connecting wire and a load amplifier;
the method is characterized in that:
the manual hydraulic pump is connected with the hydraulic piston cylinder through a threaded joint;
the pressure gauge is connected with the manual hydraulic pump through threads;
the hydraulic piston cylinder is fixed on the supporting plate through a fixing nut.
2. The loader load cell and load amplifier calibration device of claim 1, wherein: the supporting disk is of a square structure and is fixedly welded with the supporting column.
3. The loader load cell and load amplifier calibration device of claim 2, wherein: the support column is of a cylindrical structure and is fixedly welded with the support disc and the chassis.
4. A loader load cell and load amplifier calibration device as recited in claim 3, wherein: the base plate is of a square structure and is welded and fixed with the support column, and 4 bolt holes are formed in the base plate and used for installing the load sensor.
5. The loader load cell and load amplifier calibration device of claim 4, wherein: the load sensor is arranged at the central position of the chassis and is connected with the load amplifier through a signal wire.
6. The loader load cell and load amplifier calibration device of claim 4, wherein: the bolt hole on the chassis is connected with the fixing bolt; the fixing bolt is a hexagon bolt.
7. The loader load cell and load amplifier calibration device of claim 5 or 6, wherein: the load amplifier is connected with the load sensor through a signal line, and the load amplifier amplifies a load signal and then sends the amplified load signal to the special computer through a connecting line to display a load numerical value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023278251.6U CN213985487U (en) | 2020-12-30 | 2020-12-30 | Loading and unloading machine load sensor and load amplifier calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023278251.6U CN213985487U (en) | 2020-12-30 | 2020-12-30 | Loading and unloading machine load sensor and load amplifier calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213985487U true CN213985487U (en) | 2021-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023278251.6U Active CN213985487U (en) | 2020-12-30 | 2020-12-30 | Loading and unloading machine load sensor and load amplifier calibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213985487U (en) |
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2020
- 2020-12-30 CN CN202023278251.6U patent/CN213985487U/en active Active
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