Field calibration device of digital thermometer for heat treatment furnace workshop

Abstract

The utility model discloses an on-site calibration device for a digital thermometer in a heat treatment furnace workshop, which comprises a base, a ventilation hole is arranged on the base, a heat dissipation fan is arranged in the middle of the base, a cooling assembly is arranged below the heat dissipation fan, and the cooling assembly comprises a water inlet pipe penetrating through one side of the base. By arranging the base, the bracket and the bearing assembly, the camera can be fixed on the mounting seat in the bearing assembly, then the base is fixed at the temperature display instrument, and the driving motor drives the mounting seat to rotate along the bracket through the supporting shaft, so that the camera shoots the temperature display instrument, and the temperature display instrument is displayed through machine vision in the camera. According to the temperature display instrument, display numbers on the temperature display instrument are shot and collected by adopting a principle of identifying LCD / LED nixie tube display based on line gray scale distribution, and can be fed back to a background in time, so that a worker can conveniently calibrate the temperature display instrument, the temperature display instrument does not need to be disassembled for inspection, and the operation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to digital temperature table's field calibration technical field, especially a kind of digital temperature table's field calibration device for heat treatment furnace workshop. BACKGROUND

[0002] Temperature display instrument is the instrument that is used with thermocouple or thermal resistance to measure temperature.In metallurgy, chemical industry, aerospace, machinery, light industry, manufacturing industry, food, medical treatment, detection, scientific research department, it is widely applied, and it is the measuring instrument of large quantity and wide range, temperature measuring instrument commonly has intelligent temperature control instrument and digital display temperature control table, and it should have strong adaptability to environmental conditions.In general, instrument should be able to work normally under the condition that-10 ℃~50 ℃, relative humidity is less than 85%RH, power fluctuation ±(10~15)%, and it should have strong anti-common mode, string mode interference ability.

[0003] When measuring and calibrating temperature display instrument, the staff needs to disassemble temperature display instrument and send it to laboratory, and the measuring cycle is long, disassembly is complicated, along with the increasing production and testing tasks, related measurement task demand is increasing, time is tight, task is heavy, under the premise of not disassembling temperature display instrument (i.e.on-site measurement), it is urgent to carry out automatic calibration technology research of temperature display instrument to meet the increasing demand of measurement and calibration. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of digital temperature table's field calibration device for heat treatment furnace workshop.

[0005] The utility model can be achieved by using the following technical scheme:

[0006] A kind of digital temperature table's field calibration device for heat treatment furnace workshop, including base, the ventilation hole is set in the base, heat dissipation fan is installed in the middle of the base, and cooling assembly is arranged below the heat dissipation fan, the cooling assembly includes the water inlet pipe that passes through one side of the base, the water inlet pipe one end is installed with connecting groove, the connecting groove has two groups, and the conveying pipe is communicated between two groups of connecting groove, another group of connecting groove one end is installed with drain pipe.

[0007] Preferably, the ventilation hole and the cooling assembly are vertically angularly distributed.

[0008] Preferably, the base is symmetrically provided with support above, and bearing assembly is installed between two groups of supports.

[0009] Preferably, the bearing assembly includes support shaft rotatably connected with the support, and mounting seat is fixed on the support shaft.

[0010] Preferably, one end of the support shaft is connected with a driving motor, and the driving motor is fixed on one of the groups of supports.

[0011] Preferably, a camera is connected to the mounting seat, and the camera is bolted to the mounting seat.

[0012] Preferably, a plurality of ventilation grooves are equidistantly arranged at the bottom end of the mounting seat.

[0013] Preferably, a plurality of fixed suction cups are arranged at the bottom end of the base.

[0014] Beneficial technical effects are that:

[0015] 1. By arranging the base, the support and the bearing assembly, the camera can be fixed on the mounting seat in the bearing assembly, and then the base is fixed on the temperature display instrument. The driving motor drives the mounting seat to rotate along the support through the support shaft, so that the camera can shoot the temperature display instrument. The camera can shoot and collect the display numbers on the temperature display instrument through machine vision and the principle of recognizing LCD / LED digital tube display based on line gray scale distribution, and can timely feedback to the background, so that the staff can calibrate the temperature display instrument without disassembling and sending for inspection, and the operation is convenient.

[0016] 2. By arranging the cooling assembly and the cooling fan, cooling water can be transported into the connecting groove through the water inlet pipe during the use of the camera. The cooling water is branched into the conveying pipe, and the cooling fan can extract cold air and convey it to the camera during the conveying process, so that the camera can be cooled, the influence of high temperature in the heat treatment furnace workshop on the camera can be avoided, the service life of the camera can be ensured, and the used cooling water can be discharged through the drain pipe for recycling. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a preferred embodiment of the structure of the on-site calibration device for the digital temperature table in the heat treatment furnace workshop according to the utility model.

[0018] Figure 2 It is a preferred embodiment of the main sectional view of the on-site calibration device for the digital temperature table in the heat treatment furnace workshop according to the utility model.

[0019] Figure 3 It is a preferred embodiment of the bottom view of the on-site calibration device for the digital temperature table in the heat treatment furnace workshop according to the utility model.

[0020] The reference signs are explained as follows:

[0021] 1. Base; 2. Ventilation holes; 3. Cooling fan; 4. Cooling assembly; 401. Water inlet pipe; 402. Connecting groove; 403. Delivery pipe; 404. Drain pipe; 5. Bracket; 6. Load-bearing assembly; 601. Support shaft; 602. Mounting base; 603. Drive motor; 7. Camera; 8. Ventilation groove; 9. Fixed suction cup. DETAILED DESCRIPTION

[0022] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is described in further detail below with reference to embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0023] like Figures 1-3 As shown, the present embodiment provides an on-site calibration device for a digital thermometer in a heat treatment furnace workshop, comprising a base 1, with ventilation holes 2 provided on the base 1, for facilitating the external gas to enter the heat dissipation fan 3 through the ventilation holes 2, a heat dissipation fan 3 is installed in the middle of the base 1, and the camera 7 can be cooled by the heat dissipation fan 3, and a cooling assembly 4 is provided below the heat dissipation fan 3, the cooling assembly 4 comprises a water inlet pipe 401 running through one side of the base 1, and cold water enters the connecting groove 402 through the water inlet pipe 401, a connecting groove 402 is installed at one end of the water inlet pipe 401, and the connecting groove 402 can divert the cooling water, and there are two groups of connecting grooves 402, and a delivery pipe 403 is connected between the two groups of connecting grooves 402, and the delivery pipe 403 can deliver cooling water, and a drain pipe 404 is installed at one end of the other group of connecting grooves 402, and the used cooling water is discharged through the drain pipe 404 for recycling and reuse.

[0024] like Figures 1-2 As shown, the ventilation holes 2 and the cooling assembly 4 are distributed at a vertical angle, which facilitates the air entering from the ventilation holes 2 to contact the delivery pipe 403 in the cooling assembly 4, thereby cooling the incoming air.

[0025] like Figures 1-2 As shown, brackets 5 are symmetrically arranged above the base 1 , and a bearing assembly 6 is installed between two groups of brackets 5 to facilitate supporting the bearing assembly 6 through the brackets 5 .

[0026] like Figures 1-2 As shown, the bearing assembly 6 includes a support shaft 601 rotatably connected to the bracket 5 , and a mounting seat 602 is fixed on the support shaft 601 , so that the support shaft 601 can drive the mounting seat 602 to rotate.

[0027] like Figures 1-2 As shown, one end of the support shaft 601 is connected to a drive motor 603 , and the drive motor 603 is fixed on one of the brackets 5 , so that the support shaft 601 can be driven to rotate by the drive motor 603 .

[0028] likeFigures 1-2 As shown, the mounting base 602 is connected to the camera 7, and the camera 7 is connected to the mounting base 602 by bolts, which makes it convenient to fix the camera 7 on the mounting base 602, thereby adjusting the shooting angle of the camera 7.

[0029] like Figures 1-2 As shown, a plurality of ventilation slots 8 are equidistantly provided at the bottom of the mounting base 602 , so that cooling gas can contact the camera 7 through the ventilation slots 8 .

[0030] like Figure 3 As shown, a fixed suction cup 9 is installed at the bottom end of the base 1, and there are four groups of fixed suction cups 9, which facilitates the base 1 to be installed and fixed through the fixed suction cups 9.

[0031] Working principle of this device: When this device is used, the base 1 is fixed by the fixed suction cup 9, and then the staff drives the driving motor 603 on one side of the bracket 5 to rotate the support shaft 601 according to the on-site shooting and detection requirements. The support shaft 601 can drive the mounting base 602 to rotate, thereby adjusting the shooting angle of the camera 7. The camera 7 can shoot the temperature display, and the camera 7 uses machine vision to use the principle of line grayscale distribution to identify the LCD / LED digital tube display to shoot and collect the displayed numbers on the temperature display, which can be fed back to the background in time. It is convenient for staff to calibrate the temperature display without disassembly for inspection, and the operation is easy. During the use of camera 7, cooling water is transported to the connecting groove 402 through the water inlet pipe 401, and the cooling water is diverted to the delivery pipe 403. The air entering from the ventilation hole 2 contacts the delivery pipe 403 in the cooling component 4, thereby cooling the incoming air. The cooling fan 3 will extract the cold air and transport it to the camera 7, thereby cooling the camera 7 to avoid it being affected by high temperature in the heat treatment furnace workshop and ensure its service life. The used cooling water is discharged through the drain pipe 404 for recycling and reuse.

[0032] The above are only further embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention based on the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. An on-site calibration device for digital thermometers in heat treatment furnace workshops, characterized by: The invention comprises a base (1), a ventilation hole (2) is provided on the base (1), a heat dissipation fan (3) is installed in the middle of the base (1), and a cooling assembly (4) is provided below the heat dissipation fan (3), and the cooling assembly (4) comprises a water inlet pipe (401) passing through one side of the base (1), a connecting groove (402) is installed at one end of the water inlet pipe (401), there are two groups of connecting grooves (402), and a delivery pipe (403) is connected between the two groups of connecting grooves (402), and a drainage pipe (404) is installed at one end of the other group of connecting grooves (402).

2. The on-site calibration device for a digital thermometer used in a heat treatment furnace workshop according to claim 1, characterized in that: The ventilation holes (2) and the cooling assembly (4) are distributed at a vertical angle.

3. The on-site calibration device for a digital thermometer used in a heat treatment furnace workshop according to claim 1, characterized in that: Brackets (5) are symmetrically arranged above the base (1), and a bearing assembly (6) is installed between two groups of the brackets (5).

4. The on-site calibration device for a digital thermometer used in a heat treatment furnace workshop according to claim 3, characterized in that: The bearing assembly (6) comprises a support shaft (601) rotatably connected to the bracket (5), and a mounting seat (602) is fixed on the support shaft (601).

5. The on-site calibration device for a digital thermometer used in a heat treatment furnace workshop according to claim 4, characterized in that: One end of the support shaft (601) is connected to a drive motor (603), and the drive motor (603) is fixed on one set of the brackets (5).

6. The on-site calibration device for a digital thermometer used in a heat treatment furnace workshop according to claim 4, characterized in that: A camera (7) is connected to the mounting seat (602), and the camera (7) is bolted to the mounting seat (602).

7. The on-site calibration device for a digital thermometer used in a heat treatment furnace workshop according to claim 4, characterized in that: The bottom end of the mounting seat (602) is provided with a plurality of ventilation slots (8) at equal intervals.

8. The on-site calibration device for a digital thermometer used in a heat treatment furnace workshop according to claim 1, characterized in that: A fixed suction cup (9) is installed at the bottom end of the base (1), and there are four groups of the fixed suction cups (9).

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