CN-224216181-U - Wear-resistant thermocouple

Abstract

The utility model provides a wear-resistant thermocouple, wherein a thermocouple is fixedly arranged in a pipe sleeve, the pipe sleeve is provided with a threaded section and a convex part, the threaded section is fixedly connected with an assembly seat, the assembly seat is provided with an assembly hole, a plurality of ceramic sleeves and protection rings are fixedly sleeved on the outer side of the pipe sleeve, and the ceramic sleeves and the protection rings are alternately arranged. The thermocouple is fixedly arranged in the pipe sleeve, the pipe sleeve is fixedly connected with the assembly seat through the thread section, the assembly seat is convenient for installation, the outer side of the pipe sleeve is fixedly sleeved with the ceramic sleeves and the protection rings, the ceramic sleeves and the protection rings are alternately arranged, the ceramic sleeves are protected by the ceramic sleeves, the wear resistance of the pipe sleeve is improved, the protection rings are used for protecting the ceramic sleeves, the protection rings are arranged on the ceramic sleeves, the ceramic sleeves are protected from being broken during collision, the other end of the pipe sleeve is provided with the convex part, the ceramic sleeves and the protection rings are alternately arranged on the outer side of the pipe sleeve, and the assembly seat is screwed on the thread section of the pipe sleeve to be matched with the convex part, so that the ceramic sleeves and the protection rings are tightly fixed, and the rigidity of the pipe sleeve is improved.

Inventors

• YANG LEI

Assignees

• 东莞市德明仪表有限公司

Dates

Publication Date

20260508

Application Date

20250716

Claims (5)

1. 1. The wear-resistant thermocouple comprises a pipe sleeve, wherein the pipe sleeve is internally and fixedly provided with a thermocouple, the wear-resistant thermocouple is characterized in that the pipe sleeve is provided with a threaded section and a convex part, the threaded section is fixedly connected with an assembly seat, the assembly seat is provided with an assembly hole, the outer side of the pipe sleeve is fixedly sleeved with a plurality of ceramic sleeves and protection rings, and the ceramic sleeves and the protection rings are alternately arranged.
2. 2. The wear resistant thermocouple of claim 1 wherein the outer diameter of the guard ring is greater than the outer diameter of the ceramic sleeve.
3. 3. The wear-resistant thermocouple of claim 1, wherein the sleeves are all copper and the guard ring is stainless steel.
4. 4. The wear resistant thermocouple of claim 1 wherein said ceramic sleeve is an alumina ceramic.
5. 5. The wear resistant thermocouple of claim 1, wherein the protective ring is provided with slots on both sides.

Description

Wear-resistant thermocouple Technical Field The utility model belongs to the technical field of thermocouples, and particularly relates to a wear-resistant thermocouple. Background In the rubber refining process, the rubber mixing time is relatively short. When the rubber is mixed, the temperature of an internal mixer must be strictly controlled, the temperature is too high, the thermo-oxidative aging of the rubber is accelerated, the physical and mechanical properties of the vulcanized rubber are reduced, the excessive mixing phenomenon occurs, the scorching of the rubber is easy to cause, and the pressure dispersion of the rubber is caused by too low temperature. Therefore, the thermocouple is used for real-time temperature monitoring of the internal mixer. During rubber refining, ultra-high pressures and shear forces are generated in the internal mixer, which expand the entire internal space of the internal mixer and also act on the thermocouples. The thermocouple needs to have high strength and wear resistance to accommodate such severe operating environments. The utility model discloses a wear-resistant thermocouple with an authorized bulletin number of CN207019808U, which comprises a protective sleeve, thermocouple wires and two-hole ceramic tubes, wherein the thermocouple wires penetrate into the two-hole ceramic tubes and are arranged in the protective sleeve, the protective sleeve is a choke plug tube which is made of a metal tube with one end subjected to hot forging necking treatment, the choke plug end of the metal tube is in a smooth transition curved surface, the choke plug end is provided with a choke plug end through hole coaxial with an inner hole of the metal tube, and the temperature measuring end of the thermocouple wires penetrates into the choke plug end through hole and is welded with the inner wall of the choke plug end through hole to form a closed end. The thermocouple has high wear resistance due to the choke plug end subjected to hot forging treatment, and the thermocouple wire and the protective sleeve shell are welded to ensure that the thermocouple has high response speed, so that the corresponding sensitivity of the thermocouple is improved. But the wear resistance of the protective sleeve is not high. Disclosure of utility model The present utility model aims to provide a wear-resistant thermocouple to solve the problems set forth in the background art. In order to achieve the purpose, the wear-resistant thermocouple comprises a pipe sleeve, wherein a thermocouple is fixedly arranged in the pipe sleeve, the pipe sleeve is provided with a threaded section and a convex part, the threaded section is fixedly connected with an assembly seat, the assembly seat is provided with an assembly hole, a plurality of ceramic sleeves and protection rings are fixedly sleeved on the outer side of the pipe sleeve, and the ceramic sleeves and the protection rings are alternately arranged. Preferably, the outer diameter of the guard ring is greater than the outer diameter of the ceramic sleeve. Preferably, the sleeves are made of copper, and the protection rings are made of stainless steel. Preferably, the ceramic sleeve is made of alumina ceramic. Preferably, slots are formed on both sides of the protection ring. Compared with the prior art, the utility model has the beneficial effects that: The thermocouple is fixedly arranged in the pipe sleeve, the pipe sleeve is fixedly connected with the assembly seat through the thread section, the assembly seat is convenient for installation, the outer side of the pipe sleeve is fixedly sleeved with the ceramic sleeves and the protection rings, the ceramic sleeves and the protection rings are alternately arranged, the ceramic sleeves are protected by the ceramic sleeves, the wear resistance of the pipe sleeve is improved, the protection rings are used for protecting the ceramic sleeves, the protection rings are arranged on the ceramic sleeves, the ceramic sleeves are protected from being broken during collision, the other end of the pipe sleeve is provided with the convex part, the ceramic sleeves and the protection rings are alternately arranged on the outer side of the pipe sleeve, and the assembly seat is screwed on the thread section of the pipe sleeve to be matched with the convex part, so that the ceramic sleeves and the protection rings are tightly fixed, and the rigidity of the pipe sleeve is improved. Drawings Fig. 1 is a structural view of the present utility model. Fig. 2 is an exploded structural view of the present utility model. Fig. 3 is a structural view of the guard ring of the present utility model. The drawing shows a pipe sleeve 1, a thermocouple 2, a threaded section 3, a convex part 4, a fitting seat 5, a fitting hole 6, a ceramic sleeve 7, a protection ring 8 and a slot 9. Detailed Description The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompa