Armored thermocouple fixing device

Abstract

The utility model discloses a sheathed thermocouple fixing device, which relates to the technical field of thermocouples and comprises a bearing seat, a control box arranged at the bottom of the bearing seat, a thermocouple body movably arranged at the bottom of the control box, a positioning mechanism connected with the side wall of the bearing seat and a fixing mechanism connected with the control box. The positioning mechanism comprises a driving part connected with the side wall of the bearing seat, and a first movable part and a second movable part which are movably arranged on the outer side wall of the driving part and are used for positioning the whole device; the fixing mechanism comprises a first supporting piece and a second supporting piece which are fixedly connected to the opposite side walls of the control box and used for fixing the thermocouple body in the reaction barrel. According to the sheathed thermocouple fixing device provided by the utility model, the outer side walls of the two positioning blocks are attached to the outer side wall of the reaction barrel, and the bottom of the bearing seat is attached to the end part of the reaction barrel, so that the thermocouple body is fixed at the central axis of the reaction barrel.

Description

Technical Field

[0001] The utility model relates to the technical field of thermocouples, in particular to an armored thermocouple fixing device. Background Art

[0002] A sheathed thermocouple is a sensor used to measure temperature, usually consisting of two different metal wires (electrodes) connected together. When the temperature changes, the thermoelectric potential difference of the different metal wires will generate a current, so the temperature change can be determined by measuring the magnitude of the current.

[0003] In the production and processing of food, chemical industry, rubber industry, etc., melting, distillation, concentration and other processes are carried out. The above processes are all carried out in reactors and reaction barrels, and the temperature needs to be strictly controlled. Generally, armored thermocouples are used as temperature measurement sensors.

[0004] The existing armored thermocouples are mainly fixed by clamps and cassettes, which are difficult to install and not stable enough. They cannot be adjusted after being fixed, and the temperature of reactants at different depths cannot be detected. Utility Model Content

[0005] The main purpose of the utility model is to provide an armored thermocouple fixing device, which solves the problem that the clamp and cassette binding methods are difficult to install and not stable enough, and cannot be adjusted after fixing, and cannot detect the temperature of reactants at different depths.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An armored thermocouple fixing device includes a bearing seat, a control box arranged at the bottom of the bearing seat, and a thermocouple body movably arranged at the bottom of the control box. The thermocouple body also includes a positioning mechanism connected to the side wall of the bearing seat and a fixing mechanism connected to the control box.

[0008] The positioning mechanism includes a driving member connected to the side wall of the bearing seat, and a first movable member and a second movable member movably arranged on the outer side wall of the driving member for positioning the entire device;

[0009] The fixing mechanism comprises a first supporting member and a second supporting member which are fixedly connected to opposite side walls of the control box and are used to fix the thermocouple body inside the reaction barrel.

[0010] Preferably, the driving member includes a servo motor fixedly connected to the outer side wall of the bearing seat, a forward and reverse ball screw fixedly connected to the output end of the servo motor, and a limiting hole opened at the bottom of the bearing seat.

[0011] Preferably, the first movable member comprises a movable seat movably arranged on the outer side wall of the forward and reverse ball screw, a limit block fixedly connected to the bottom of the movable seat, and a positioning block fixedly connected to the bottom of the limit block;

[0012] The second movable member has the same structure as the first movable member, and the two movable members are symmetrically arranged with respect to the mid-vertical plane of the forward and reverse ball screw.

[0013] Preferably, the fixing mechanism further comprises a mounting frame fixedly connected to the outer side wall of the control box, and a movable plate hinged to the inner side wall of the mounting frame.

[0014] Preferably, the fixing mechanism also includes a mounting block fixedly connected to the outer wall of the bearing seat, a spring groove opened on the outer wall of the mounting block, an electromagnet embedded in the side wall of the mounting block, a connecting spring fixedly connected to the bottom of the spring groove, and a locking block fixedly connected to the end face of the connecting spring.

[0015] Preferably, the first support member includes an electric push rod fixedly connected to the outer side wall of the control box, a support block fixedly connected to the output end of the electric push rod, and a pressure sensor embedded in the support block.

[0016] Preferably, the second support member has the same structural composition as the first support member, and the two are symmetrical about the mid-vertical plane of the forward and reverse ball screw.

[0017] Preferably, the fixing mechanism further comprises an electric telescopic rod fixedly connected to the bottom of the control box;

[0018] The top of the thermocouple body is fixedly connected to the output end of the electric telescopic rod, and the central axis of the electric telescopic rod coincides with the mid-vertical plane of the forward and reverse ball screw.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] 1. In the utility model, by starting the servo motor, the forward and reverse ball screws are driven to rotate, and then the two movable seats are driven to move toward or away from each other. At this time, the limit block slides inside the limit hole, and the limit block cooperates with the limit hole to make the movable seat perform stable linear motion until the distance between the two positioning blocks is equal to the outer diameter of the reaction barrel to be detected, and then the outer side walls of the two positioning blocks are both fitted with the outer side walls of the reaction barrel, and the bottom of the bearing seat is fitted with the end of the reaction barrel, so as to fix the thermocouple body at the central axis of the reaction barrel.

[0021] 2. In the utility model, by starting the electric push rod, the electric push rod drives the support block to move toward the inner wall of the reaction barrel, so that the support block abuts against the inner wall of the reaction barrel and squeezes the pressure sensor until the pressure sensor detects that the pressure reaches the set value, so as to close the electric push rod, and the two support blocks abut against the inner wall of the reaction barrel, so as to fix the thermocouple body inside the reaction barrel, and then start the electromagnet, so that the electromagnet adsorbs the locking block, extends the connecting spring, and completely retracts it into the spring groove, so that the bearing seat can be disassembled, and then the movable plate is rotated to move it to the inside of the reaction barrel, and then the reaction barrel can be sealed, and finally the thermocouple body can be driven to move by the electric telescopic rod, so that the temperature of the reactants at different depths in the reaction barrel can be measured. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the bearing seat of the utility model;

[0024] Figure 3 This is a schematic diagram of the internal structure of the installation block of the utility model;

[0025] Figure 4 For this utility model Figure 3 A magnified schematic diagram of the structure in the middle.

[0026] In the figure: 1. bearing seat; 2. control box; 3. thermocouple body; 401. servo motor; 402. forward and reverse ball screw; 403. limit hole; 404. movable seat; 405. limit block; 406. positioning block; 501. mounting frame; 502. movable plate; 503. mounting block; 504. electromagnet; 505. connecting spring; 506. locking block; 507. electric push rod; 508. support block; 509. pressure sensor; 5010. electric telescopic rod. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0028] Embodiment 1: Figure 1-4 As shown, an armored thermocouple fixing device includes a bearing seat 1, a control box 2 arranged at the bottom of the bearing seat 1, and a thermocouple body 3 movably arranged at the bottom of the control box 2, and also includes a positioning mechanism connected to the side wall of the bearing seat 1, and a fixing mechanism connected to the control box 2;

[0029] The positioning mechanism includes a driving member connected to the side wall of the bearing seat 1, and a first movable member and a second movable member movably arranged on the outer side wall of the driving member for positioning the entire device;

[0030] The fixing mechanism includes a first support member and a second support member fixedly connected to opposite side walls of the control box 2 for fixing the thermocouple body 3 inside the reaction barrel.

[0031] The driving component includes a servo motor 401 fixedly connected to the outer wall of the supporting seat 1, a forward and reverse ball screw 402 fixedly connected to the output end of the servo motor 401, and a limiting hole 403 opened at the bottom of the supporting seat 1, wherein the forward and reverse ball screw 402 is located inside the supporting seat 1.

[0032] The first movable member includes a movable seat 404 movably disposed on the outer side wall of the forward and reverse ball screw 402, a limit block 405 fixedly connected to the bottom of the movable seat 404, and a positioning block 406 fixedly connected to the bottom of the limit block 405;

[0033] The second movable part has the same structure as the first movable part, and the two are symmetrically arranged about the mid-vertical plane of the forward and reverse ball screw 402, wherein the limit block 405 extends to the outer surface of the supporting seat 1 through the limit hole 403, and the limit block 405 slides inside the limit hole 403, and the limit block 405 cooperates with the limit hole 403 to make the movable seat 404 perform stable linear motion.

[0034] By starting the servo motor 401, the forward and reverse ball screw 402 is driven to rotate, and then the two movable seats 404 are driven to move toward or away from each other. At this time, the limit block 405 slides inside the limit hole 403, and the limit block 405 cooperates with the limit hole 403 to make the movable seat 404 perform stable linear motion until the distance between the two positioning blocks 406 is equal to the outer diameter of the reaction barrel to be detected, and then the outer side walls of the two positioning blocks 406 are both fitted with the outer side walls of the reaction barrel, and the bottom of the supporting seat 1 is fitted with the end of the reaction barrel, so as to fix the thermocouple body 3 at the central axis of the reaction barrel, thereby ensuring that the measurement result is more accurate and reliable.

[0035] Embodiment 2: Figure 1-4 As shown, an armored thermocouple fixing device includes a bearing seat 1, a control box 2 arranged at the bottom of the bearing seat 1, and a thermocouple body 3 movably arranged at the bottom of the control box 2, and also includes a positioning mechanism connected to the side wall of the bearing seat 1, and a fixing mechanism connected to the control box 2;

[0036] The positioning mechanism includes a driving member connected to the side wall of the bearing seat 1, and a first movable member and a second movable member movably arranged on the outer side wall of the driving member for positioning the entire device;

[0037] The fixing mechanism includes a first support member and a second support member fixedly connected to opposite side walls of the control box 2 for fixing the thermocouple body 3 inside the reaction barrel.

[0038] The fixing mechanism also includes a mounting frame 501 fixedly connected to the outer side wall of the control box 2, and a movable plate 502 hinged to the inner side wall of the mounting frame 501, wherein the outer side wall of the movable plate 502 is provided with a locking groove.

[0039] The fixing mechanism also includes a mounting block 503 fixedly connected to the outer wall of the supporting seat 1, a spring groove opened on the outer wall of the mounting block 503, an electromagnet 504 embedded in the side wall of the mounting block 503, a connecting spring 505 fixedly connected to the bottom of the spring groove, and a locking block 506 fixedly connected to the end face of the connecting spring 505, wherein the locking block 506 is made of ferromagnetic material, and the outer diameter of the locking block 506 is equal to the inner diameter of the locking groove.

[0040] The first support member includes an electric push rod 507 fixedly connected to the outer wall of the control box 2, a support block 508 fixedly connected to the output end of the electric push rod 507, and a pressure sensor 509 embedded in the support block 508;

[0041] The second support member has the same structure as the first support member, and the two are symmetrical about the mid-vertical plane of the forward and reverse ball screw 402, wherein the pressure sensor 509 is electrically connected to the electric push rod 507, and the support block 508 is an arc block, thereby increasing the contact area between the support block 508 and the reaction barrel.

[0042] The fixing mechanism also includes an electric telescopic rod 5010 fixedly connected to the bottom of the control box 2;

[0043] The top of the thermocouple body 3 is fixedly connected to the output end of the electric telescopic rod 5010 , and the central axis of the electric telescopic rod 5010 coincides with the mid-vertical plane of the forward and reverse ball screw 402 .

[0044] When the support base 1 is fixed, the electric push rod 507 is started, so that the electric push rod 507 drives the support block 508 to move toward the inner wall of the reaction barrel, so that the support block 508 abuts against the inner wall of the reaction barrel and squeezes the pressure sensor 509 until the pressure sensor 509 detects that the pressure reaches the set value, thereby closing the electric push rod 507, and the two support blocks 508 abut against the inner wall of the reaction barrel, thereby fixing the thermocouple body 3 inside the reaction barrel, and then starting the electromagnet 504, so that the electromagnet 504 absorbs the locking block 506, extends the connecting spring 505, and completely retracts it into the spring groove, so that the support base 1 can be disassembled, and then the movable plate 502 is rotated to move it to the inside of the reaction barrel, and then the reaction barrel can be sealed, and finally the electric telescopic rod 5010 can be used to drive the thermocouple body 3 to move, so that the temperature of the reactants at different depths in the reaction barrel can be measured.

Claims

1. An armored thermocouple fixing device, comprising a bearing seat (1), a control box (2) arranged at the bottom of the bearing seat (1), and a thermocouple body (3) movably arranged at the bottom of the control box (2), It is characterized in that It also includes a positioning mechanism connected to the side wall of the bearing seat (1), and a fixing mechanism connected to the control box (2); The positioning mechanism comprises a driving member connected to the side wall of the bearing seat (1), and a first movable member and a second movable member movably arranged on the outer side wall of the driving member for positioning the entire device; The fixing mechanism comprises a first support member and a second support member which are fixedly connected to opposite side walls of the control box (2) and are used to fix the thermocouple body (3) inside the reaction barrel.

2. An armored thermocouple fixing device according to claim 1, Features: The driving member comprises a servo motor (401) fixedly connected to the outer wall of the bearing seat (1), a forward and reverse ball screw (402) fixedly connected to the output end of the servo motor (401), and a limiting hole (403) provided at the bottom of the bearing seat (1).

3. An armored thermocouple fixing device according to claim 2, Features: The first movable member comprises a movable seat (404) movably arranged on the outer side wall of the forward and reverse ball screw (402), a limit block (405) fixedly connected to the bottom of the movable seat (404), and a positioning block (406) fixedly connected to the bottom of the limit block (405); The second movable member has the same composition structure as the first movable member, and the two are symmetrically arranged with respect to the mid-vertical plane of the forward and reverse ball screw (402).

4. An armored thermocouple fixing device according to claim 3, Features: The fixing mechanism further comprises a mounting frame (501) fixedly connected to the outer side wall of the control box (2), and a movable plate (502) hinged to the inner side wall of the mounting frame (501).

5. An armored thermocouple fixing device according to claim 4, Features: The fixing mechanism further comprises a mounting block (503) fixedly connected to the outer wall of the bearing seat (1), a spring groove provided in the outer wall of the mounting block (503), an electromagnet (504) embedded in the side wall of the mounting block (503), a connecting spring (505) fixedly connected to the bottom of the spring groove, and a locking block (506) fixedly connected to the end face of the connecting spring (505).

6. An armored thermocouple fixing device according to claim 5, Features: The first support member comprises an electric push rod (507) fixedly connected to the outer wall of the control box (2), a support block (508) fixedly connected to the output end of the electric push rod (507), and a pressure sensor (509) embedded in the support block (508).

7. An armored thermocouple fixing device according to claim 6, Features: The second support member has the same structural composition as the first support member, and the two are symmetrical about the mid-vertical plane of the forward and reverse ball screw (402).

8. An armored thermocouple fixing device according to claim 7, Features: The fixing mechanism also includes an electric telescopic rod (5010) fixedly connected to the bottom of the control box (2); The top of the thermocouple body (3) is fixedly connected to the output end of the electric telescopic rod (5010), and the central axis of the electric telescopic rod (5010) coincides with the mid-vertical plane of the forward and reverse ball screw (402).

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