CN219301788U - Automatic remove hydraulic pressure school and weigh device - Google Patents
Automatic remove hydraulic pressure school and weigh device Download PDFInfo
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- CN219301788U CN219301788U CN202223333349.6U CN202223333349U CN219301788U CN 219301788 U CN219301788 U CN 219301788U CN 202223333349 U CN202223333349 U CN 202223333349U CN 219301788 U CN219301788 U CN 219301788U
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Abstract
The utility model discloses an automatic mobile hydraulic balance correcting device which comprises a device body, wherein a control panel, a PLC (programmable logic controller) control unit, an actuating mechanism and an instrument unit are arranged on the device body, a mobile wheel is arranged at the bottom of the device body, the PLC control unit is respectively connected with the control panel, the actuating mechanism and the instrument unit, the actuating mechanism comprises an oil cylinder, an oil pump and an electromagnetic valve are arranged on an oil supply pipeline of the oil cylinder, and the instrument unit comprises a pressure sensor and a pressure gauge which are arranged on the oil supply pipeline. The automatic movable hydraulic calibrating device is used for manually calibrating, labor is saved, human errors are avoided, errors caused by measuring article loss are avoided, calibrating work is facilitated, and calibrating efficiency is improved.
Description
Technical Field
The utility model relates to the field of weighing and calibrating, in particular to an automatic movable hydraulic calibrating device which is used for fully-automatically calibrating an industrial weighing instrument after being used.
Background
In the use process of the industrial weighing instrument, the weighing instrument can be inaccurate in measurement due to the change of temperature and other environments and the influence of deformation and the like caused by self weighing, the linear proportion of the display weight to the actual weight is changed, and when the applied weight is particularly large, the linear proportion is changed very little, so that a larger error is caused, and the weighing device needs to be calibrated.
At present, most of calibration is performed manually, for example, calibration is performed by weights, weights with standard weights are added, and then a weighing instrument is calibrated according to the weights, but the method is particularly troublesome to operate due to the large weight requirement, abrasion is easy to occur in the carrying process of the large weights, measurement is inaccurate, or calibration is performed by jacks, errors are inevitably caused when the jacks are manually used, the jack operation is relatively troublesome, calibration is sometimes required, the jack precision is limited, friction force is affected in the operation process, and the measurement result is biased. The existing manual calibrating has the defects of labor consumption, limitation, equipment, insufficient precision and trouble in the aspect of calibrating.
Disclosure of Invention
The utility model aims to: the utility model aims to provide an automatic mobile hydraulic calibrating device which can effectively save labor, facilitate the calibrating work, reduce human errors and improve the calibrating precision.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides an automatic remove hydraulic pressure school and call device, includes the device body, be equipped with control panel, PLC control unit, actuating mechanism, instrument unit on the device body, device body bottom is equipped with removes the wheel, control panel, actuating mechanism, instrument unit are connected respectively to the PLC control unit, actuating mechanism includes the hydro-cylinder, is equipped with oil pump, solenoid valve on the oil supply pipeline of hydro-cylinder, instrument unit is including setting up pressure sensor, the manometer on oil supply pipeline.
Further, the electromagnetic valve adopts a three-position four-way electromagnetic valve, an oil inlet of the electromagnetic valve is connected with an oil outlet of the oil tank, an oil return port of the electromagnetic valve is connected with an oil return port of the oil tank, a first reversing oil port of the electromagnetic valve is connected with a first oil inlet and outlet of the oil tank, and a second reversing oil port of the electromagnetic valve is connected with a second oil inlet and outlet of the oil tank.
Further, the actuating mechanism further comprises a proportional overflow valve arranged on the oil supply pipeline, an oil inlet of the proportional overflow valve is arranged between an oil inlet of the electromagnetic valve and an oil outlet of the oil tank, and an oil return port of the proportional overflow valve is connected with an oil return port of the oil tank.
Further, the number of the oil cylinders is three, and the connecting lines of the central points of the three oil cylinders form a triangle.
Further, the PLC control unit is connected with the control panel through Ethernet.
Further, a switch breaker is arranged on the power supply control box of the oil pump, and the switch breaker is connected with the PLC control unit.
Further, the instrument unit further comprises a pressure sensor, and the pressure sensor is arranged on the oil cylinder and is connected with the PLC control unit.
The beneficial effects are that: the automatic movable hydraulic calibrating device is used for manually calibrating, labor is saved, human errors are avoided, errors caused by measuring article loss are avoided, calibrating work is facilitated, and calibrating efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of an actuator;
FIG. 3 is a schematic illustration of the connection of a solenoid valve to a cylinder;
in the figure: 1-a device body; 2-a control panel; a 3-PLC control unit; 4-an actuator; 5-meter unit; 6-an oil cylinder; 7-an oil pump and 8-a pressure sensor; 9-a pressure gauge; 10-an electromagnetic valve; 11-a proportional overflow valve; 12-oil tank.
The specific embodiment is as follows:
the utility model is further explained below with reference to the drawings.
As shown in fig. 1 and 2, the automatic mobile hydraulic calibrating device of the utility model comprises a device body 1, wherein a control panel 2, a PLC control unit 3 and an actuating mechanism 4 are arranged on the device body 1, and a mobile wheel (not shown in the figure) is arranged at the bottom of the device body 1, so that more convenient mobile calibrating can be realized.
The control panel 2 can facilitate an operator to input control instructions, and the PLC control unit 3 is respectively connected with the control panel 1, the execution mechanism 4 and the instrument unit 5, wherein the PLC control unit is connected with the control panel 1 through Ethernet. The PLC control unit 3 controls the operation of the executing mechanism 2 according to the control instruction, the instrument unit 5 generates corresponding detection data in the operation process of the executing mechanism 4 and sends the detection data to the PLC control unit 3, and the PLC control unit 3 adjusts the operation state of the executing mechanism 2 according to the detection data.
As shown in fig. 2, the actuator 4 includes three cylinders 6, and the central points of the three cylinders are connected to form a triangle. The oil supply pipeline of the oil cylinder 6 is provided with an oil pump 7 electromagnetic valve 10. The meter unit 5 includes a pressure sensor 8 and a pressure gauge 9 provided on the oil supply line. As shown in fig. 3, the electromagnetic valve 10 is a three-position four-way electromagnetic valve, an oil inlet P of the electromagnetic valve 10 is connected with an oil outlet of an oil tank, an oil return port T of the electromagnetic valve is connected with an oil return port of the oil tank, a first reversing oil port a of the electromagnetic valve is connected with a first oil inlet and outlet port of the oil tank, and a second reversing oil port B of the electromagnetic valve is connected with a second oil inlet and outlet port of the oil tank.
In order to ensure that the pressure of the oil supply pipeline can be stable, the oil supply pipeline of the oil cylinder 6 is also provided with a proportional overflow valve 11, an oil inlet of the proportional overflow valve 11 is arranged between an oil inlet P of the electromagnetic valve 10 and an oil outlet of the oil tank 12, and an oil return port of the proportional overflow valve 11 is connected with an oil return port of the oil tank 12.
The whole device adopts hydraulic calibration, during operation, the motor of the oil pump 7 is opened, the electromagnetic valve oil inlet P is communicated with the first reversing oil port A, the electromagnetic valve oil return port T is communicated with the second reversing oil port B, the oil cylinder 6 is in a pressurized state, pressure is applied to a bearing platform of a weighing instrument through the oil cylinder 6, the required weight is simulated, the opening degree of the proportional overflow valve 11 is controlled through the PLC control unit 3 to control the pressure, the pressure is transmitted to the PLC control unit 3 through the pressure sensor, then the loading force at the moment is calculated according to the loading pressure, the oil cylinder end area and the oil cylinder number, when the loading force reaches the required weight of a tester, the pressure is kept, at the moment, the PLC control unit 3 controls the proportional overflow valve 11 according to the required weight to maintain the loading pressure, the loading force meets the requirement, after the calibration work is completed by the worker, the PLC control unit 3 controls the conduction state of the electromagnetic valve 10, the electromagnetic valve oil inlet T is communicated with the first reversing oil port A, the electromagnetic valve oil return port P is communicated with the second reversing oil port B, the pressure is released by the oil cylinder 6 after one end time, the calibration work is completed, and the calibration work is closed.
The power supply control box of the oil pump is provided with a switch breaker, and the switch breaker is connected with the PLC control unit. Detecting the working state of the oil pump motor through a switch breaker, and when the oil pump motor is started and works normally, outputting a signal by the breaker to be normally open, and judging that the motor is in a normal working state; when the motor is overloaded or short-circuited, the excessive current can change the state of the switch, at the moment, the motor circuit is disconnected, the output signal of the circuit breaker is closed, and the PLC control unit receives the signal of the circuit breaker and judges that the oil pump motor is in an overload state.
The instrument unit can be additionally provided with a pressure sensor which is arranged on the oil cylinder and is connected with the PLC control unit. The pressure sensor can be used as an auxiliary verification device, when the oil cylinder runs to generate pressure, the pressure sensor generates corresponding signals and transmits the signals to the PLC control unit, the signals are converted into data information and are displayed on the control panel 1, an operator can observe an actual pressure value on the control panel 1, the pressure value can be used for auxiliary verification of the correction, and the correction work of the automatic mobile hydraulic correction device is more strict.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.
Claims (7)
1. An automatic remove hydraulic pressure school and call device which characterized in that: the device comprises a device body, be equipped with control panel, PLC control unit, actuating mechanism, instrument unit on the device body, device body bottom is equipped with removes the wheel, control panel, actuating mechanism, instrument unit are connected respectively to the PLC control unit, actuating mechanism includes the hydro-cylinder, is equipped with oil pump, solenoid valve on the oil supply pipeline of hydro-cylinder, instrument unit is including setting up pressure sensor, the manometer on the oil supply pipeline.
2. An automatic mobile hydraulic weighing apparatus according to claim 1, characterized in that: the method is characterized in that: the electromagnetic valve adopts a three-position four-way electromagnetic valve, an oil inlet of the electromagnetic valve is connected with an oil outlet of the oil tank, an oil return port of the electromagnetic valve is connected with an oil return port of the oil tank, a first reversing oil port of the electromagnetic valve is connected with a first oil inlet and outlet of the oil tank, and a second reversing oil port of the electromagnetic valve is connected with a second oil inlet and outlet of the oil tank.
3. An automatic mobile hydraulic weighing apparatus according to claim 2, characterized in that: the actuating mechanism further comprises a proportional overflow valve arranged on the oil supply pipeline, an oil inlet of the proportional overflow valve is arranged between an oil inlet of the electromagnetic valve and an oil outlet of the oil tank, and an oil return port of the proportional overflow valve is connected with an oil return port of the oil tank.
4. An automatic mobile hydraulic weighing apparatus according to claim 1, characterized in that: the number of the oil cylinders is three, and the connecting lines of the central points of the three oil cylinders form a triangle.
5. An automatic mobile hydraulic weighing apparatus according to claim 1, characterized in that: the PLC control unit is connected with the control panel through Ethernet.
6. An automatic mobile hydraulic weighing apparatus according to claim 1, characterized in that: the power supply control box of the oil pump is provided with a switch breaker, and the switch breaker is connected with the PLC control unit.
7. An automatic mobile hydraulic weighing apparatus according to claim 1, characterized in that: the instrument unit further comprises a pressure sensor, and the pressure sensor is arranged on the oil cylinder and is connected with the PLC control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223333349.6U CN219301788U (en) | 2022-12-12 | 2022-12-12 | Automatic remove hydraulic pressure school and weigh device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223333349.6U CN219301788U (en) | 2022-12-12 | 2022-12-12 | Automatic remove hydraulic pressure school and weigh device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219301788U true CN219301788U (en) | 2023-07-04 |
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ID=86953162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223333349.6U Active CN219301788U (en) | 2022-12-12 | 2022-12-12 | Automatic remove hydraulic pressure school and weigh device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219301788U (en) |
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2022
- 2022-12-12 CN CN202223333349.6U patent/CN219301788U/en active Active
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