CN218584214U - Novel thermocouple sealing device for horizontal ion nitriding furnace - Google Patents
Novel thermocouple sealing device for horizontal ion nitriding furnace Download PDFInfo
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- CN218584214U CN218584214U CN202223063976.2U CN202223063976U CN218584214U CN 218584214 U CN218584214 U CN 218584214U CN 202223063976 U CN202223063976 U CN 202223063976U CN 218584214 U CN218584214 U CN 218584214U
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- cutting ferrule
- undersetting
- lower cutting
- ferrule
- upper cover
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Abstract
The utility model discloses a novel thermocouple sealing device for horizontal ionic nitriding furnace, ring flange including coaxial setting, the insulating tube, the undersetting, go up the cutting ferrule, lower cutting ferrule and upper cover cap and axis level set up, the undersetting welds on the ring flange, it adopts insulating material to make and is the protruding axle construction with lower cutting ferrule to go up the cutting ferrule, it sets up and supports each other with lower cutting ferrule relatively to go up the cutting ferrule, lower cutting ferrule card is gone into inside the undersetting, upper cover cap and undersetting fixed connection, with upper cover ferrule and lower cutting ferrule locking, be equipped with on the upper cover cap and be used for carrying out spacing locating hole to the upper cover ferrule, the ring flange, the undersetting, go up the cutting ferrule and the coaxial through wires hole that is equipped with of lower cutting ferrule, it is equipped with sealing washer one to go up between cutting ferrule and the lower cutting ferrule, the insulating tube is located in the through wires hole, the thermocouple is located in the insulating tube, it seals through sealing washer one in the lump to pass. The sealing device is matched with a horizontal ion nitriding furnace in structural form, so that the thermocouple is arranged in parallel to the horizontal nitriding furnace, and the sealing performance of the thermocouple is good.
Description
Technical Field
The utility model belongs to the technical field of the ion nitriding furnace technique and specifically relates to a novel thermocouple sealing device for horizontal ion nitriding furnace.
Background
The ion nitriding is a device which is arranged in a vacuum furnace body filled with ammonia, takes the furnace body as an anode, takes the workpiece in contact with a furnace bottom plate as a cathode, and leads direct current voltage to be introduced between the furnace body and the workpiece to generate glow discharge so as to harden the product. Most of the existing ion nitriding furnaces are vertical ion nitriding furnaces, and due to glow discharge, voltage drop occurs on the surface of a workpiece, ions are accelerated to bombard the surface of the workpiece by voltage sharp drop, and high kinetic energy is converted into heat energy.
However, most of the existing ion nitriding furnaces are bell-type, and thermocouples are fixed on a cathode disk base. In a horizontal furnace, because the cathode support below the furnace is not fixed and the shapes of products subjected to nitriding treatment are different, the conventional bell jar type mode cannot be suitable for the horizontal ion nitriding furnace.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides a novel thermocouple sealing device for horizontal ion nitriding furnace, this sealing device's structural style uses with horizontal ion nitriding furnace cooperation, makes the thermocouple be on a parallel with horizontal nitriding furnace setting, and structural stability is strong, and is good to the leakproofness of thermocouple.
The utility model provides a novel thermocouple sealing device for horizontal ion nitriding furnace, includes ring flange, insulating tube, undersetting, goes up cutting ferrule, lower cutting ferrule and upper cover cap and the axis level setting of coaxial setting, the undersetting welds on the ring flange, go up cutting ferrule and lower cutting ferrule adopt insulating material to make and be the protruding axle construction, go up cutting ferrule and lower cutting ferrule and set up relatively and support each other and lean on, cutting ferrule card goes into inside the undersetting down, upper cover cap and undersetting fixed connection, with last cutting ferrule and lower cutting ferrule locking, be equipped with on the upper cover cap and be used for carrying out spacing locating hole to last cutting ferrule, ring flange, undersetting, last cutting ferrule and lower cutting ferrule are coaxial to be equipped with the through wires hole, go up and be equipped with sealing washer one between cutting ferrule and the lower cutting ferrule, the insulating tube is located in the through wires hole, and the thermocouple is located in the insulating tube, passes the sealing washer and seals through sealing washer one in the lump.
As above-mentioned technical scheme's preferred, the undersetting is equipped with the external screw thread, the upper cover cap is lock nut, be equipped with the constant head tank that uses with the cutting ferrule cooperation down on the undersetting, the undersetting carries out prepositioning to cutting ferrule down through the constant head tank, and the upper cover cap is prepositioned to the upper cutting ferrule through the locating hole, the undersetting passes through threaded connection with the upper cover cap and locks upper cutting ferrule and lower cutting ferrule.
Preferably, in the above technical solution, the insulating tube is a ceramic tube.
As the optimization of the technical scheme, a second sealing ring is arranged between the lower support and the lower cutting sleeve and between the upper cover cap and the upper cutting sleeve.
The beneficial effects of the utility model reside in that:
the sealing device is matched with a horizontal ion nitriding furnace in structural form for use, so that the thermocouple is arranged in parallel to the horizontal nitriding furnace, the structural stability is strong, and the sealing performance to the thermocouple is good; and the final positioning is realized by a thread extrusion mode, the assembly is simple, and the operation is convenient.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The reference numbers are as follows: 1-flange plate, 2-insulating tube, 3-lower support, 4-upper cutting sleeve, 5-lower cutting sleeve, 6-upper cover cap, 7-positioning hole, 8-threading hole, 9-first sealing ring, 10-positioning groove, 11-second sealing ring and 12-thermocouple.
Detailed Description
The technical solution of the present invention is clearly and completely described below with reference to the drawings of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, a novel thermocouple sealing device for a horizontal type ion nitriding furnace comprises a flange plate 1, an insulating tube 2, a lower support 3, an upper cutting sleeve 4, a lower cutting sleeve 5, an upper cover cap 6 and an axis which are coaxially arranged, wherein the lower support 3 is welded on the flange plate 1, the upper cutting sleeve 4 and the lower cutting sleeve 5 are made of insulating materials and are both in a convex shaft structure, the upper cutting sleeve 4 and the lower cutting sleeve 5 are oppositely arranged and are mutually abutted against each other, the lower cutting sleeve 5 is clamped into the lower support 3, the upper cover cap 6 is fixedly connected with the lower support 3, the upper cutting sleeve 4 and the lower cutting sleeve 5 are locked, a positioning hole 7 for limiting the upper cutting sleeve 4 is formed in the upper cover cap 6, a threading hole 8 is coaxially formed in the flange plate 1, the lower support 3, the upper cutting sleeve 4 and the lower cutting sleeve 5, a first sealing ring 9 is arranged between the upper cutting sleeve 4 and the lower cutting sleeve 5, the insulating tube 2 is arranged in the threading hole 8, and a thermocouple 12 is arranged in the insulating tube 2, and passes through the first sealing ring 9 to be sealed.
In this embodiment, the undersetting 3 is equipped with the external screw thread, upper cover cap 6 is lock nut, be equipped with the constant head tank 10 that uses with the cooperation of lower cutting ferrule 4 on the undersetting 3, undersetting 3 carries out prepositioning to lower cutting ferrule 5 through constant head tank 10, and upper cover cap 6 is prepositioned to upper cutting ferrule 4 through locating hole 7, undersetting 3 and upper cover cap 6 are through threaded connection with upper cutting ferrule 4 and lower cutting ferrule 5 locking.
In this embodiment, a ceramic tube is used as the insulating tube 2.
In this embodiment, a second sealing ring is disposed between the lower support 3 and the lower cutting ferrule 5 and between the upper cap 6 and the upper cutting ferrule 4.
Wherein, the leakproofness detects when lower support 3 and the welding of ring flange 1, thereby avoids appearing the sand hole after the welding and lead to leaking gas and influence the sealing performance of device, and sealing washer one 9 is used for sealed thermocouple 12, and sealing washer two 11 realizes cutting ferrule 5 and lower support 3 and the sealed of upper cover cap 6 of upper cutting ferrule 4.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a novel thermocouple sealing device for horizontal ion nitriding furnace which characterized in that: including ring flange, insulating tube, undersetting, last cutting ferrule, lower cutting ferrule and the setting of top hat and axis level of coaxial setting, the undersetting welds on the ring flange, go up cutting ferrule and lower cutting ferrule and adopt insulating material to make and be protruding axle construction, go up cutting ferrule and lower cutting ferrule and set up relatively and support each other and lean on, cutting ferrule card goes into inside the undersetting down, top hat and undersetting fixed connection will go up cutting ferrule and lower cutting ferrule locking, be equipped with on the top hat and be used for carrying on spacing locating hole to the top ferrule, ring flange, undersetting, top ferrule and lower cutting ferrule are coaxial to be equipped with the through wires hole, it is equipped with sealing washer one to go up between cutting ferrule and the lower cutting ferrule, the insulating tube is located in the through wires hole, and the thermocouple is located in the insulating tube, passes the sealing washer and seals through sealing washer one in the lump.
2. The novel thermocouple sealing device according to claim 1, wherein: the lower support is provided with external threads, the upper cover cap is a locking nut, a positioning groove matched with the lower cutting ferrule for use is formed in the lower support, the lower support is used for pre-positioning the lower cutting ferrule through the positioning groove, the upper cover cap is used for pre-positioning the upper cutting ferrule through a positioning hole, and the lower support and the upper cover cap are used for locking the upper cutting ferrule and the lower cutting ferrule through threaded connection.
3. The novel thermocouple sealing device according to claim 1, wherein: the insulating tube is a ceramic tube.
4. The novel thermocouple sealing device according to claim 1, wherein: and a second sealing ring is arranged between the lower support and the lower cutting sleeve and between the upper cap and the upper cutting sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223063976.2U CN218584214U (en) | 2022-11-18 | 2022-11-18 | Novel thermocouple sealing device for horizontal ion nitriding furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223063976.2U CN218584214U (en) | 2022-11-18 | 2022-11-18 | Novel thermocouple sealing device for horizontal ion nitriding furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218584214U true CN218584214U (en) | 2023-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223063976.2U Active CN218584214U (en) | 2022-11-18 | 2022-11-18 | Novel thermocouple sealing device for horizontal ion nitriding furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218584214U (en) |
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2022
- 2022-11-18 CN CN202223063976.2U patent/CN218584214U/en active Active
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