CN212645922U - Thermocouple connecting device for vacuum annealing furnace - Google Patents
Thermocouple connecting device for vacuum annealing furnace Download PDFInfo
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- CN212645922U CN212645922U CN202021820820.2U CN202021820820U CN212645922U CN 212645922 U CN212645922 U CN 212645922U CN 202021820820 U CN202021820820 U CN 202021820820U CN 212645922 U CN212645922 U CN 212645922U
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- thermocouple
- vacuum annealing
- annealing furnace
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- butt joint
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Abstract
The utility model discloses a thermocouple connecting device for vacuum annealing furnace, including the vacuum annealing furnace connection platform, the flange joint of vacuum annealing furnace connection platform and vacuum annealing furnace connects the bench and is provided with a plurality of installation passageways, installation passageway department is provided with the fastener, the fastener is provided with the thermocouple mounting hole that is used for installing the thermocouple along its axis. The utility model relates to a novelty is reasonable, can connect thermocouple and vacuum annealing stove's flange, through setting up the sealed pad of thermocouple and butt joint sealing pad, can guarantee the leakproofness between thermocouple and the vacuum annealing stove, thermocouple fastening bolt and thermocouple fastening nut's cooperation mode can further guarantee the leakproofness of thermocouple connection, and then make it satisfy the demand of vacuum annealing stove temperature calibration, therefore excellent in use effect.
Description
Technical Field
The utility model belongs to the technical field of the thermocouple connection for the vacuum annealing stove, concretely relates to thermocouple connecting device for vacuum annealing stove.
Background
The vacuum annealing furnace is used for carrying out continuous bright annealing, solid solution, demagnetization, stainless steel quenching treatment and the like on materials under the control of protective atmosphere, the surface of a treated product is smooth, free of oxidation and decarburization, and the vacuum annealing furnace has the advantages of high production efficiency, low energy consumption, less pollution, convenience in operation and use, low labor intensity and the like, and is widely applied to annealing of materials such as high-temperature alloy steel, magnetic materials, nonferrous metals, titanium alloys and the like in recent years.
For a vacuum annealing furnace, temperature uniformity is an important technical index, the heat treatment effect of the vacuum annealing furnace is directly influenced by the temperature uniformity, and the vacuum annealing furnace is heated under negative pressure and protective atmosphere based on the working principle of the vacuum annealing furnace, so that higher requirements on the sealing property and the vacuum degree of a furnace body are provided, and difficulty and challenge are brought to the temperature measurement in the furnace.
In order to solve the problem that the temperature of the vacuum annealing furnace is calibrated within the range of 300-1000 ℃ under the conditions of negative pressure and protective atmosphere on the premise of not changing the existing hearth structure and operation mode of the vacuum annealing furnace, a connecting device is not provided at present to connect a thermocouple (sensor) with a flange of the vacuum annealing furnace, so that the sealing property between the thermocouple and the flange of the vacuum annealing furnace is ensured, and the requirement of the temperature calibration of the vacuum annealing furnace is met.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that not enough among the above-mentioned prior art is directed at, provide a thermocouple connecting device for vacuum annealing stove, its novel in design is reasonable, can connect thermocouple and vacuum annealing stove's flange to guarantee the leakproofness between thermocouple and the vacuum annealing stove, and then make its demand that satisfies vacuum annealing stove temperature calibration.
In order to solve the technical problem, the utility model discloses a technical scheme is: a thermocouple connecting device for a vacuum annealing furnace comprises a vacuum annealing furnace connecting table connected with a flange of the vacuum annealing furnace, wherein a plurality of mounting channels are arranged on the vacuum annealing furnace connecting table, fasteners are arranged at the mounting channels, and thermocouple mounting holes for mounting thermocouples are formed in the fasteners along the axes of the fasteners.
The thermocouple connecting device for the vacuum annealing furnace is characterized in that: the fastener comprises a thermocouple fastening bolt and a thermocouple fastening nut matched with the thermocouple fastening bolt, and the thermocouple mounting hole comprises a first thermocouple mounting hole arranged in the thermocouple fastening bolt and a second thermocouple mounting hole arranged in the thermocouple fastening nut and communicated with the first thermocouple mounting hole.
The thermocouple connecting device for the vacuum annealing furnace is characterized in that: and a thermocouple sealing gasket is arranged between the thermocouple fastening bolt and the vacuum annealing furnace connecting platform.
The thermocouple connecting device for the vacuum annealing furnace is characterized in that: and a butt-joint sealing gasket is arranged between the vacuum annealing furnace connecting platform and the flange.
The thermocouple connecting device for the vacuum annealing furnace is characterized in that: the installation channel comprises a nut butt joint cavity and a bolt butt joint cavity, the nut butt joint cavity is communicated with the bolt butt joint cavity through a connecting hole, a thermocouple fastening nut extends into the nut butt joint cavity, a thermocouple fastening bolt sequentially penetrates through the bolt butt joint cavity and the connecting hole to be in threaded connection with the thermocouple fastening nut, and a bolt head of the thermocouple fastening bolt is matched with the bolt butt joint cavity.
The thermocouple connecting device for the vacuum annealing furnace is characterized in that: the bolt butt joint cavity is communicated with the connecting hole through a sealing gasket mounting cavity for mounting a thermocouple sealing gasket, the aperture of the nut butt joint cavity and the aperture of the bolt butt joint cavity are both larger than the aperture of the sealing gasket mounting cavity, and the aperture of the sealing gasket mounting cavity is larger than the aperture of the connecting hole.
The thermocouple connecting device for the vacuum annealing furnace is characterized in that: the thermocouple fastening nut is cylindrical, and an outer hexagonal square head is arranged outside the thermocouple fastening nut.
Compared with the prior art, the utility model has the following advantage:
1. the utility model can connect the thermocouple and the vacuum annealing furnace by arranging the vacuum annealing furnace connecting platform; by arranging the thermocouple sealing gasket and the butt sealing gasket, the sealing performance between the thermocouple and the vacuum annealing furnace can be ensured, and the requirement of temperature calibration of the vacuum annealing furnace is met, so that the vacuum annealing furnace is convenient to popularize and use.
2. The utility model discloses a during thermocouple fastening bolt screw in thermocouple fastening nut, thermocouple fastening bolt upper end can receive the extrusion of thermocouple fastening nut blind hole inner wall for thermocouple fastening bolt's thermocouple mounting hole reduces, and then makes thermocouple mounting hole inner wall and thermocouple in close contact with, thereby has further guaranteed the leakproofness that the thermocouple is connected, and consequently excellent in use effect.
3. The utility model discloses a sealed pad of thermocouple is located sealed installation cavity of filling up, consequently can avoid sealed pad of thermocouple and the inside hot air contact of vacuum annealing stove, and leads to the sealed impaired problem of pad of thermocouple.
To sum up, the utility model relates to a novel reasonable can be connected thermocouple and vacuum annealing stove's flange to guarantee the leakproofness between thermocouple and the vacuum annealing stove, and then make it satisfy the demand of vacuum annealing stove temperature calibration.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a schematic view of the connection structure of the thermocouple fastening bolt and the thermocouple fastening nut of the present invention.
Fig. 3 is a schematic structural diagram of the installation channel of the present invention.
Fig. 4 is an installation diagram of the present invention.
Description of reference numerals:
1-connecting platform of vacuum annealing furnace; 2, installing a channel; 2-1-nut butt joint cavity;
2-bolt butt joint cavity; 2-3-a gasket mounting cavity; 2-4-connecting hole;
3-thermocouple fastening bolt; 4-thermocouple fastening nut; 5, a thermocouple sealing gasket;
6-thermocouple mounting hole; 6-1-first thermocouple mounting hole;
6-2-second thermocouple mounting holes; 7-outer hexagonal square head;
8, connecting a platform mounting hole; 9-vacuum annealing furnace; 10-a flange;
11-a thermocouple; 12-a data collector; 13-butt gasket.
Detailed Description
As shown in fig. 1 to 4, the utility model discloses a vacuum annealing furnace connecting platform 1, vacuum annealing furnace connecting platform 1 are connected with the flange 10 of vacuum annealing furnace 9, are provided with a plurality of installation passageways 2 on the vacuum annealing furnace connecting platform 1, installation passageway 2 department is provided with the fastener, the fastener is provided with the thermocouple mounting hole 6 that is used for installing thermocouple 11 along its axis.
It should be noted that the number of the installation channels 2 is nine, and the diameters of the thermocouple installation holes 6 on the fasteners at the nine installation channels 2 are different, so thermocouples 11 with different diameters can be installed on the vacuum annealing furnace connection table 1, and the applicability of the device is further improved; the thermocouple and the fastener are in sealing connection so as to ensure the sealing performance between the thermocouple and the vacuum annealing furnace. The connecting platform mounting holes 8 are formed in the circumferential direction of the vacuum annealing furnace connecting platform 1, and bolts penetrate through the connecting platform mounting holes 8 to mount the vacuum annealing furnace connecting platform 1 to the flange 10 of the vacuum annealing furnace 9.
In this embodiment, the fastening member includes a thermocouple fastening bolt 3 and a thermocouple fastening nut 4 engaged with the thermocouple fastening bolt 3, and the thermocouple mounting hole 6 includes a first thermocouple mounting hole 6-1 provided in the thermocouple fastening bolt 3 and a second thermocouple mounting hole 6-2 provided in the thermocouple fastening nut 4 and communicating with the first thermocouple mounting hole 6-1.
It should be noted that the thermocouple mounting holes 6 on the two matched thermocouple fastening bolts 3 and thermocouple fastening nuts 4 are coaxial and have the same hole diameter.
The upper end of the thermocouple fastening bolt 3 is in a truncated cone shape, the bottom of the thermocouple fastening nut 4 is provided with a truncated cone-shaped blind hole matched with the upper end of the thermocouple fastening bolt 3, and the taper of the upper end of the thermocouple fastening bolt 3 is larger than that of the blind hole at the bottom of the thermocouple fastening nut 4.
It should be noted that, because the taper of the upper end of the thermocouple fastening bolt 3 is greater than the taper of the blind hole at the bottom of the thermocouple fastening nut 4, when the thermocouple fastening bolt 3 is screwed into the thermocouple fastening nut 4, the upper end of the thermocouple fastening bolt 3 is extruded by the inner wall of the blind hole of the thermocouple fastening nut 4, so that the thermocouple mounting hole 6 of the thermocouple fastening bolt 3 is reduced, and further, the inner wall of the thermocouple mounting hole 6 of the thermocouple fastening bolt 3 is in close contact with the thermocouple 11, thereby further ensuring the connection tightness of the thermocouple 11.
In the embodiment, a thermocouple sealing gasket 5 is arranged between the thermocouple fastening bolt 3 and the vacuum annealing furnace connecting platform 1.
It should be noted that the thermocouple gasket 5 ensures the sealing property of the portion, thereby improving the reliability of the device.
In this embodiment, a butt gasket 13 is disposed between the vacuum annealing furnace connecting table 1 and the flange 10.
The butt gasket 13 ensures the sealing property at the joint between the vacuum annealing furnace joining stand 1 and the vacuum annealing furnace 9, thereby improving the reliability of the apparatus.
In this embodiment, the installation channel 2 includes a nut docking cavity 2-1 and a bolt docking cavity 2-2, the nut docking cavity 2-1 and the bolt docking cavity 2-2 are communicated through a connection hole 2-4, a thermocouple fastening nut 4 extends into the nut docking cavity 2-1, a thermocouple fastening bolt 3 sequentially penetrates through the bolt docking cavity 2-2 and the connection hole 2-4 to be in threaded connection with the thermocouple fastening nut 4, and a bolt head of the thermocouple fastening bolt 3 is matched with the bolt docking cavity 2-2.
It should be noted that the arrangement of the nut docking cavity 2-1 and the bolt docking cavity 2-2 enables the device to adopt the thermocouple fastening bolt 3 and the thermocouple fastening nut 4 with shorter lengths, so that the purpose of fixing the thermocouple 11 with the same length can be achieved, and the problem that the thermocouple 11 is easy to bend when in use is avoided.
In the embodiment, the bolt butt joint cavity 2-2 is communicated with the connecting hole 2-4 through a sealing gasket mounting cavity 2-3 for mounting a thermocouple sealing gasket 5, the aperture of the nut butt joint cavity 2-1 and the aperture of the bolt butt joint cavity 2-2 are both larger than the aperture of the sealing gasket mounting cavity 2-3, and the aperture of the sealing gasket mounting cavity 2-3 is larger than the aperture of the connecting hole 2-4.
It should be noted that the thermocouple sealing gaskets 5 are located in the gasket mounting cavities 2 to 3, and therefore, the problem that the thermocouple sealing gaskets 5 are damaged due to contact between the thermocouple sealing gaskets 5 and the hot air inside the vacuum annealing furnace 9 can be avoided.
In this embodiment, the thermocouple fastening nut 4 is cylindrical, and an outer hexagonal square head 7 is arranged outside the thermocouple fastening nut 4.
It should be noted that the outer hexagonal square head 7 of the thermocouple fastening nut 4 facilitates the force application and torsion of the thermocouple fastening nut 4 by workers, and the outer hexagonal square head 7 arranged at the middle position can facilitate the connection of the device with the vacuum annealing furnace connection table 1.
When the device of the utility model is installed, firstly, the thermocouple fastening bolt 3 passes through the installation channel 2, a thermocouple sealing gasket 5 is arranged between the thermocouple fastening bolt 3 and the vacuum annealing furnace connecting platform 1 during installation, then the thermocouple fastening bolt 3 is screwed into two to three buttons of the thermocouple fastening nut 4, then the thermocouple 11 is installed in the first thermocouple installation hole 6-1 and the second thermocouple installation hole 6-2, and after the position of the thermocouple 11 is adjusted, the thermocouple fastening bolt 3 and the thermocouple fastening nut 4 are fastened; then the vacuum annealing furnace connecting platform 1 and the vacuum annealing furnace 9 are installed, and a butt joint sealing gasket 13 is arranged at the butt joint position of the vacuum annealing furnace connecting platform and the vacuum annealing furnace; after the installation is finished, whether the relative position of each thermocouple 11 and the upper end of the thermocouple fastening bolt 3 meets the requirement is checked, whether the vacuum annealing furnace connecting platform 1 is tightly connected with the vacuum annealing furnace 9 is checked, and the sealing performance is ensured; after the confirmation is finished, the furnace door of the vacuum annealing furnace 9 is closed, the vacuum pumping is started, the temperature is raised after the vacuum degree reaches-0.1 MPa, the thermocouple compensation wire is connected with the data acquisition unit 12 after the temperature reaches the target temperature, and the temperature of the vacuum annealing furnace 9 is calibrated.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.
Claims (7)
1. A thermocouple connecting device for a vacuum annealing furnace is characterized in that: the novel vacuum annealing furnace comprises a vacuum annealing furnace connecting platform (1), wherein the vacuum annealing furnace connecting platform (1) is connected with a flange (10) of a vacuum annealing furnace (9), a plurality of installation channels (2) are arranged on the vacuum annealing furnace connecting platform (1), fasteners are arranged at the installation channels (2), and thermocouple installation holes (6) for installing thermocouples (11) are formed in the fasteners along the axes of the fasteners.
2. The thermocouple connecting device for the vacuum annealing furnace according to claim 1, wherein: the fastener comprises a thermocouple fastening bolt (3) and a thermocouple fastening nut (4) matched with the thermocouple fastening bolt (3), and the thermocouple mounting hole (6) comprises a first thermocouple mounting hole (6-1) arranged in the thermocouple fastening bolt (3) and a second thermocouple mounting hole (6-2) arranged in the thermocouple fastening nut (4) and communicated with the first thermocouple mounting hole (6-1).
3. The thermocouple connecting device for the vacuum annealing furnace according to claim 2, wherein: and a thermocouple sealing gasket (5) is arranged between the thermocouple fastening bolt (3) and the vacuum annealing furnace connecting platform (1).
4. The thermocouple connecting device for the vacuum annealing furnace according to claim 1, wherein: and a butt-joint sealing gasket (13) is arranged between the vacuum annealing furnace connecting platform (1) and the flange (10).
5. The thermocouple connecting device for the vacuum annealing furnace according to claim 3, wherein: the installation channel (2) comprises a nut butt joint cavity (2-1) and a bolt butt joint cavity (2-2), the nut butt joint cavity (2-1) and the bolt butt joint cavity (2-2) are communicated through a connecting hole (2-4), a thermocouple fastening nut (4) extends into the nut butt joint cavity (2-1), a thermocouple fastening bolt (3) sequentially penetrates through the bolt butt joint cavity (2-2) and the connecting hole (2-4) to be in threaded connection with the thermocouple fastening nut (4), and a bolt head of the thermocouple fastening bolt (3) is matched with the bolt butt joint cavity (2-2).
6. The thermocouple connecting device for the vacuum annealing furnace according to claim 5, wherein: the bolt butt joint cavity (2-2) is communicated with the connecting hole (2-4) through a sealing gasket mounting cavity (2-3) for mounting a thermocouple sealing gasket (5), the aperture of the nut butt joint cavity (2-1) and the aperture of the bolt butt joint cavity (2-2) are both larger than the aperture of the sealing gasket mounting cavity (2-3), and the aperture of the sealing gasket mounting cavity (2-3) is larger than the aperture of the connecting hole (2-4).
7. The thermocouple connecting device for the vacuum annealing furnace according to claim 2, wherein: the thermocouple fastening nut (4) is cylindrical, and an outer hexagonal square head (7) is arranged outside the thermocouple fastening nut (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021820820.2U CN212645922U (en) | 2020-08-27 | 2020-08-27 | Thermocouple connecting device for vacuum annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021820820.2U CN212645922U (en) | 2020-08-27 | 2020-08-27 | Thermocouple connecting device for vacuum annealing furnace |
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| Publication Number | Publication Date |
|---|---|
| CN212645922U true CN212645922U (en) | 2021-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021820820.2U Active CN212645922U (en) | 2020-08-27 | 2020-08-27 | Thermocouple connecting device for vacuum annealing furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212645922U (en) |
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2020
- 2020-08-27 CN CN202021820820.2U patent/CN212645922U/en active Active
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