Probe assembly
By designing the probe assembly, the combination of positioning sleeve, sleeve base, support bracket and movable kit and gelling material is solved, and the detection accuracy of traditional steel temperature measurement sensors is affected by sand, achieving higher detection Accuracy and stability.
Patent Information
- Application Number
- CN202421177552.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-27
AI Technical Summary
The detection accuracy of the thermocouple wire of traditional liquid steel temperature measurement sensors is affected by sand, resulting in a decrease in detection accuracy.
A probe assembly is designed, including a positioning sleeve, sleeve base, support bracket and movable kit, the thermocouple wire is electrically coupled to the compensation wire, and is protected by the movable kit and gelling material to prevent sand from entering, improving detection accuracy Spend.
Through this design, the thermocouple wire is protected, the detection accuracy and precision of the probe are improved, the influence of sand is avoided, and the stability and assembly convenience are enhanced.
Smart Images
Figure CN222318233U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of molten steel detection accessories, in particular to a probe assembly. Background Art
[0002] In the metallurgical process, molten iron or molten steel needs to be tested. Testing is required in molten iron / molten steel, converter, electric furnace, LF furnace, RH furnace, continuous casting ladle, and VD furnace in the iron-making plant. The traditional molten steel temperature, oxygen, and aluminum measurement probe includes a positioning tube partially installed in the through-hole inner cavity of a high-temperature resistant paper tube, a cold end protection box and a signal connection socket are installed in the positioning tube, a U-shaped temperature sensor and an oxygen sensor are installed on the cold end protection box located on the exposed end of the positioning steel tube, the exposed U-shaped temperature sensor and oxygen sensor are covered by a protective cap and are connected to an external measurement and control device via a signal harness assembled on the signal connection socket, and a circle of high-temperature resin protective sand is solidified on the outer wall of the exposed part of the positioning tube outside the high-temperature resistant paper tube.
[0003] Since the U-shaped temperature sensor uses precious metal platinum-rhodium wire, the outlet ends of the two thermocouple wires of the existing temperature sensor are electrically connected to the upper ends of the parallel compensation wires, and the positioning tube is filled with sand and sealed with glue. However, the sand will enter the U-shaped temperature sensor through the U-shaped tube, thereby affecting the accuracy of thermocouple wire detection. Utility Model Content
[0004] In summary, in order to overcome the deficiencies of the prior art, the utility model provides a probe assembly.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a probe assembly, including a positioning sleeve and a sleeve base, wherein two parallel compensating wires are arranged on the sleeve base, and a supporting bracket is arranged at the other end of the compensating wire relative to the sleeve base, and a U-shaped temperature measuring sensor is arranged on the supporting bracket, and the outlet ends of two thermocouple wires of the U-shaped temperature measuring sensor are respectively electrically connected to the upper ends of the parallel compensating wires, and an active kit is arranged between the supporting bracket and the sleeve base, and a protective cavity is arranged in the hollow of the active kit, and the protective cavity is arranged corresponding to an opening at one end of the supporting bracket, and a sliding hole is arranged on the active kit corresponding to the position of the two parallel compensating wires, the inner wall of the protective cavity is adapted to the outer wall of the supporting bracket, and the active kit slides along the compensating wire, and the depth of the protective cavity is greater than the distance from the supporting bracket to the open end of the U-shaped temperature measuring sensor, and the protective cavity is filled with a gelling material.
[0006] By adopting the above technical scheme, the U-shaped temperature sensor is installed on the support bracket, the outlet ends of the two thermocouple wires of the U-shaped temperature sensor are electrically connected to the upper ends of the parallel compensation wires respectively, and then the movable kit is slid along the compensation wire to make it abut against the support bracket. At this time, the movable kit wraps the entire support bracket and the connection between the U-shaped temperature sensor and the compensation wire, and then the protective cavity is filled with gelling material, which is protected by the movable kit, and the entire internal structure is fixedly connected by the gelling material. At the same time, compared with sand and gravel, the gelling material has stronger protection for the U-shaped temperature sensor and is not easy to damage the thermocouple wire, which further improves the accuracy and precision of the probe detection.
[0007] The utility model is further configured as follows: the support bracket is arranged in a triangular shape, the compensation wires are respectively arranged at one end of the support bracket, a mounting seat is arranged at one end of the support bracket located between the two compensation wires, and the mounting seat is provided with a mounting hole for inserting the oxygen sensor.
[0008] By adopting the above technical solution, the triangular setting has high stability, and the three-end setting is convenient for connection and quick assembly.
[0009] The utility model is further configured that: more than one elastic card is arranged on the sleeve base, the elastic card is arranged in a cross shape, and the outer end of the elastic card is arranged in an arc shape.
[0010] By adopting the above technical solution, the elastic card and the positioning sleeve are snap-fitted together, which provides higher stability.
[0011] The utility model is further configured as follows: the number of the elastic cards is two and they are spaced apart from each other.
[0012] By adopting the above technical solution, the stability is further improved by multi-piece clamping.
[0013] The utility model is further provided that: a guide part adapted to the compensation wire is arranged at the other end of the movable set relative to the supporting bracket, and the guide part is hollow and communicated with the sliding hole.
[0014] By adopting the above technical solution, the movable kit can move up and down more smoothly and with higher stability.
[0015] The utility model is further configured as follows: an inverted L-shaped bracket for installing a U-shaped temperature sensor is arranged on the support bracket, the bracket includes a vertical portion arranged between two compensation wires and an extension portion arranged between the compensation wires and the U-shaped temperature sensor, the extension portion is provided with a clamping hole adapted to the U-shaped temperature sensor, and the spacing between the two compensation wires is equal to the spacing between the two ends of the opening of the U-shaped temperature sensor.
[0016] By adopting the above technical solution, assembly positioning is facilitated, and the connection between the compensation wire and the U-shaped temperature sensor is facilitated.
[0017] The specific implementation of the utility model is described below in conjunction with the drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 The internal structure of the embodiment of the utility model Figure 1 ;
[0019] Figure 2 It is a partial structural stereogram of an embodiment of the utility model;
[0020] Figure 3 The internal structure of the embodiment of the utility model Figure 2 ;
[0021] Figure numerals: 1. Positioning sleeve, 2. Sleeve base, 21. Elastic card, 3. Compensation wire, 4. Support bracket, 41. Mounting seat, 42. Bracket, 421. Vertical portion, 422. Extension portion, 423. Card hole, 5. U-shaped temperature sensor, 6. Movable kit, 61. Protection cavity, 62. Guide portion, 7. Oxygen sensor. DETAILED DESCRIPTION
[0022] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.
[0023] See attached Figure 1-3 A probe assembly disclosed in this embodiment includes a positioning sleeve 1 and a sleeve base 2, wherein two parallel compensation wires 3 are arranged on the sleeve base 2, and a support bracket 4 is arranged at the other end of the compensation wire 3 relative to the sleeve base 2, and a U-shaped temperature sensor 5 is arranged on the support bracket 4, and the outlet ends of the two thermocouple wires of the U-shaped temperature sensor 5 are respectively electrically connected to the upper ends of the parallel compensation wires 3, and a movable kit 6 is arranged between the support bracket 4 and the sleeve base 2, and the movable kit 6 is hollow and provided with a protective cavity 61, and the protective cavity 61 is arranged corresponding to the opening of one end of the support bracket 4, and the movable kit 6 is provided with a sliding hole at the position of the two parallel compensation wires 3, and the inner wall of the protective cavity 61 is adapted to the outer wall of the support bracket 4, and the movable kit 6 slides along the compensation wire 3, and the depth of the protective cavity 61 is greater than the distance from the support bracket 4 to the open end of the U-shaped temperature sensor 5, and the protective cavity 61 is filled with a gelling material.
[0024] In the technical solution of the utility model, the cementitious material can be cement or glue, etc., but is not limited to these two cementitious materials.
[0025] This embodiment further configures: the support bracket 4 is arranged in a triangular shape, the compensation wires 3 are respectively arranged at one end of the support bracket 4, and a mounting seat 41 is arranged at one end of the support bracket 4 located between two compensation wires 3, and the mounting seat 41 is provided with a mounting hole for inserting the oxygen sensor.
[0026] This embodiment is further configured as follows: one or more elastic cards 21 are disposed on the sleeve base 2 , the elastic cards 21 are disposed in a cross shape, and the outer ends of the elastic cards 21 are disposed in an arc shape.
[0027] This embodiment further provides that: there are two elastic cards 21, which are arranged in an upper and lower spaced relationship.
[0028] This embodiment further provides that: a guide portion 62 adapted to the compensation wire 3 is provided at the other end of the movable kit 6 relative to the support bracket 4, and the guide portion 62 is hollow and communicated with the sliding hole.
[0029] This embodiment is further configured as follows: an inverted L-shaped bracket 42 for mounting the U-shaped temperature sensor 5 is provided on the support bracket 4, the bracket 42 includes a vertical portion 421 arranged between the two compensation wires 3 and an extension portion 422 arranged between the compensation wires 3 and the U-shaped temperature sensor 5, the extension portion 422 is provided with a clamping hole 423 adapted to the U-shaped temperature sensor 5, and the spacing between the two compensation wires 3 is equal to the spacing between the two ends of the opening of the U-shaped temperature sensor 5.
[0030] The above-mentioned “between” does not only refer to directions and positions, but also includes the meaning of the interaction between different parts. The above-mentioned “upper and lower” are only relative descriptions for the convenience of description and understanding, and other possibilities are not excluded.
[0031] Although the terminology such as positioning sleeve 1, sleeve base 2, elastic card 21, compensation wire 3, support bracket 4, mounting seat 41, bracket 42, vertical portion 421, extension portion 422, card hole 423, U-shaped temperature sensor 5, movable kit 6, protection cavity 61, guide portion 62 is used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.
Claims
1. A probe assembly, characterized in that: It includes a positioning sleeve and a sleeve base, wherein two parallel compensating wires are arranged on the sleeve base, a supporting bracket is arranged at the other end of the compensating wire relative to the sleeve base, a U-shaped temperature measuring sensor is arranged on the supporting bracket, and the outlet ends of two thermocouple wires of the U-shaped temperature measuring sensor are respectively electrically connected to the upper ends of the parallel compensating wires, an active kit is arranged between the supporting bracket and the sleeve base, a protective cavity is arranged in the hollow of the active kit, the protective cavity is arranged corresponding to an opening at one end of the supporting bracket, a sliding hole is arranged on the active kit corresponding to the position of the two parallel compensating wires, the inner wall of the protective cavity is matched with the outer wall of the supporting bracket, the active kit slides along the compensating wire, the depth of the protective cavity is greater than the distance from the supporting bracket to the open end of the U-shaped temperature measuring sensor, and the protective cavity is filled with a gelling material.
2. A probe assembly according to claim 1, characterized in that: The support bracket is arranged in a triangular shape, the compensation wires are respectively arranged at one end of the support bracket, and a mounting seat is arranged at one end of the support bracket located between two compensation wires, and the mounting seat is provided with a mounting hole for inserting the oxygen sensor.
3. A probe assembly according to claim 1, characterized in that: The sleeve base is provided with more than one elastic card, the elastic card is arranged in a cross shape, and the outer end of the elastic card is arranged in an arc shape.
4. A probe assembly according to claim 3, characterized in that: There are two elastic cards, which are arranged at intervals in the upper and lower parts.
5. A probe assembly according to claim 1, characterized in that: A guide portion adapted to the compensation wire is arranged at the other end of the movable set relative to the supporting bracket, and the guide portion is hollow and communicated with the sliding hole.
6. A probe assembly according to claim 1, characterized in that: An inverted L-shaped bracket for installing a U-shaped temperature sensor is provided on the support bracket, and the bracket includes a vertical portion arranged between two compensation wires and an extension portion arranged between the compensation wires and the U-shaped temperature sensor, and the extension portion is provided with a clamping hole adapted to the U-shaped temperature sensor, and the spacing between the two compensation wires is equal to the spacing between the two ends of the opening of the U-shaped temperature sensor.