阅读说明：本技术 一种温度变送器结构 (Temperature transmitter structure ) 是由 卢亚丹 于 2019-10-18 设计创作，主要内容包括：本发明公开了一种温度变送器结构,其结构包括接线盒、测温管、紧固螺栓、引出线密封套管、连线、温度变送器,测温管由管体、引出线端、旋转机构、绝缘套管、感温元件组成,通过温度变送器内的温度限定控制旋转机构工作,当感温元件检测到周围温度超过200度时,自动驱动旋转机构带动轴体工作,轴体通过螺纹杆推动密合套对感温元件进行包裹,通过密合套将周围的温度进行隔绝,避免感温元件因为高温而损坏,波纹套利用防摩擦薄膜包裹感温元件表面,让感温元件与波纹套可以紧密贴合,提高了感温元件的抗震能力,并使得波纹套底端在滑动时,不会对感温元件进行摩擦。(The invention discloses a temperature transmitter structure, which comprises a junction box, a temperature measuring tube, a fastening bolt, an outgoing line sealing sleeve, a connecting line and a temperature transmitter, wherein the temperature measuring tube consists of a tube body, an outgoing line end, a rotating mechanism, an insulating sleeve and a temperature sensing element, the rotating mechanism is limited and controlled to work by the temperature in the temperature transmitter, when the temperature sensing element detects that the ambient temperature exceeds 200 ℃, the rotating mechanism is automatically driven to drive the shaft body to work, the shaft body pushes the sealing sleeve to wrap the temperature sensing element through the threaded rod, the temperature on every side is isolated through the sealing sleeve, the temperature sensing element is prevented from being damaged due to high temperature, the corrugated sleeve wraps the surface of the temperature sensing element by using the anti-friction film, the temperature sensing element and the corrugated sleeve can be tightly attached, the shock resistance of the temperature sensing element is improved, and the bottom end of the corrugated sleeve cannot rub the temperature sensing element when sliding.)

1. The utility model provides a temperature transmitter structure, its structure includes terminal box (1), temperature tube (2), fastening bolt (3), lead-out wire sealing sleeve (4), line (5), temperature transmitter (6), temperature tube (2) top on install terminal box (1), temperature tube (2) on the surface on be equipped with fastening bolt (3), temperature tube (2) and fastening bolt (3) fixed connection, terminal box (1) right-hand member on be equipped with lead-out wire sealing sleeve (4), terminal box (1) and lead-out wire sealing sleeve (4) structure as an organic whole, lead-out wire sealing sleeve (4) top be connected through line (5) with terminal box (1) top, terminal box (1) internally mounted have temperature transmitter (6), its characterized in that:

the temperature measuring tube (2) consists of a tube body (2 a), an outlet wire end (2 b), a rotating mechanism (2 c), an insulating sleeve (2 d) and a temperature sensing element (2 e), an outlet end (2 b) is arranged at the top end in the pipe body (2 a), the pipe body (2 a) is connected with the outlet end (2 b), the inner wall of the pipe body (2 a) is provided with a rotating mechanism (2 c), the pipe body (2 a) is matched with the rotating mechanism (2 c), an insulating sleeve (2 d) is arranged in the middle of the inner part of the tube body (2 a), the pipe body (2 a) is connected with an insulating sleeve (2 d) by glue, a temperature sensing element (2 e) is arranged below the insulating sleeve (2 d), the insulating sleeve (2 d) is embedded with the temperature sensing element (2 e), and the leading-out wire end (2 b) is electrically connected with the temperature sensing element (2 e).

2. A temperature transmitter architecture according to claim 1, wherein: rotary mechanism (2 c) constitute by servo motor (2 c 1), motor shaft (2 c 2), driving gear (2 c 3), isolation mechanism (2 c 4), location bearing (2 c 5), servo motor (2 c 1) on be equipped with motor shaft (2 c 2), servo motor (2 c 1) and motor shaft (2 c 2) one end mechanical connection, motor shaft (2 c 2) other end on be equipped with driving gear (2 c 3), motor shaft (2 c 2) and driving gear (2 c 3) through electric welding, driving gear (2 c 3) on be equipped with isolation mechanism (2 c 4), driving gear (2 c 3) and isolation mechanism (2 c 4) transmission connect, isolation mechanism (2 c 4) on the surface install location bearing (2 c 5).

3. A temperature transmitter architecture according to claim 2, wherein: isolation mechanism (2 c 4) constitute by axis body (2 c 41), driven gear (2 c 42), threaded rod (2 c 43), heat insulating sleeve (2 c 44), axis body (2 c 41) on the surface be equipped with driven gear (2 c 42), axis body (2 c 41) and driven gear (2 c 42) fixed connection, axis body (2 c 41) bottom have threaded rod (2 c 43), axis body (2 c 41) and threaded rod (2 c 43) mechanical connection, threaded rod (2 c 43) on be equipped with heat insulating sleeve (2 c 44), threaded rod (2 c 43) and heat insulating sleeve (2 c 44) threaded connection.

4. A temperature transmitter architecture according to claim 3, wherein: insulating sleeve (2 c 44) by ripple cover (c 1), screw hole (c 2), laminating hole (c 3), collar (c 4) constitute, ripple cover (c 1) head end on be equipped with collar (c 4), ripple cover (c 1) and collar (c 4) be the integral structure, ripple cover (c 1) intermediate position in be equipped with laminating hole (c 3), ripple cover (c 1) right side on be equipped with screw hole (c 2).

5. A temperature transmitter architecture according to claim 4, wherein: corrugated sleeve (c 1) bottom have sealed cover (c 11), corrugated sleeve (c 1) and sealed cover (c 11) fixed connection, corrugated sleeve (c 1) inside intermediate position on be equipped with antifriction film (c 12), corrugated sleeve (c 1) and antifriction film (c 12) glue and connect.

Technical Field

The invention relates to the field of temperature instruments and meters, in particular to a temperature transmitter structure.

Background

The temperature transmitter adopts a thermocouple and a thermal resistor as temperature measuring elements, and the output signals of the temperature measuring elements are transmitted to a transmitter module, and the thermal resistor film is highly accurate and vibration resistant. They are provided with thin film resistors consisting of an extremely thin metal layer, usually platinum, but also copper or nickel, deposited on a ceramic substrate. A layer of glass seals the metal film and the wire connections together. In this type of industrial transmitter, the sensitive element is not based on a thin, elongated and fragile wire. Their compact size, minimal mass and moving parts are not very effective against vibration, and some temperature sensing elements are capable of sensing temperatures up to 300 degrees and are damaged beyond that, thus requiring an over-temperature protection mechanism.

Disclosure of Invention

Aiming at the defects of the prior art, the invention is realized by the following technical scheme: a temperature transmitter structure comprises a junction box, a temperature measuring tube, a fastening bolt, a leading-out wire sealing sleeve, a connecting wire and a temperature transmitter, wherein the junction box is installed at the top end of the temperature measuring tube, the fastening bolt is arranged on the surface of the temperature measuring tube, the temperature measuring tube is fixedly connected with the fastening bolt, the leading-out wire sealing sleeve is arranged at the right end of the junction box, the junction box and the leading-out wire sealing sleeve are of an integrated structure, the top end of the leading-out wire sealing sleeve is connected with the top end of the junction box through the connecting wire, and the temperature transmitter is installed inside the junction box;

the temperature measuring tube comprises a tube body, an outgoing line end, a rotating mechanism, an insulating sleeve and a temperature sensing element, wherein the outgoing line end is arranged at the top end inside the tube body, the tube body is connected with the outgoing line end, the rotating mechanism is arranged on the inner wall of the tube body, the tube body is matched with the rotating mechanism, the insulating sleeve is arranged at the middle position inside the tube body, the tube body is connected with the insulating sleeve through glue, the temperature sensing element is arranged below the insulating sleeve, the insulating sleeve is embedded with the temperature sensing element, and the outgoing line end is electrically connected with the temperature sensing element.

As a further optimization of the technical scheme, the rotating mechanism comprises a servo motor, a motor shaft, a driving gear, an isolation mechanism and a positioning bearing, the servo motor is provided with the motor shaft, the servo motor is mechanically connected with one end of the motor shaft, the other end of the motor shaft is provided with the driving gear, the motor shaft and the driving gear are welded through electric welding, the driving gear is provided with the isolation mechanism, the driving gear is in transmission connection with the isolation mechanism, and the surface of the isolation mechanism is provided with the positioning bearing.

As the further optimization of this technical scheme, isolated mechanism constitute by axis body, driven gear, threaded rod, radiation shield, the axis body on the surface on be equipped with driven gear, axis body and driven gear fixed connection, the axis body bottom have a threaded rod, axis body and threaded rod mechanical connection, the threaded rod on be equipped with the radiation shield, threaded rod and radiation shield threaded connection.

As a further optimization of the technical scheme, the heat insulation sleeve consists of a corrugated sleeve, a threaded hole, an attaching hole and a mounting ring, the head end of the corrugated sleeve is provided with the mounting ring, the corrugated sleeve and the mounting ring are of an integrated structure, the attaching hole is formed in the middle of the corrugated sleeve, and the threaded hole is formed in the right side of the corrugated sleeve.

As a further optimization of the technical scheme, a sealing sleeve is arranged below the bottom end of the corrugated sleeve, the corrugated sleeve is fixedly connected with the sealing sleeve, an anti-friction film is arranged in the middle of the inside of the corrugated sleeve, and the corrugated sleeve is connected with the anti-friction film through glue.

As a further optimization of the technical scheme, the leading-out wire end is electrically connected with the temperature transmitter.

As a further optimization of the technical scheme, the sealing sleeve is made of a silica gel material, is high-temperature resistant and can bear the high temperature of 350 ℃.

As a further optimization of the technical scheme, the corrugated sleeve is in transmission connection with the threaded rod through the threaded hole.

As a further optimization of the technical scheme, the driving gear is meshed with the shaft body through the driven gear.

Advantageous effects

The invention relates to a temperature transmitter structure, wherein a fastening bolt on a temperature measuring tube is arranged on a top cover to be detected, a lead in the temperature transmitter is electrified through an outgoing line end, a tube body detects the surrounding environment through a temperature sensing element, when the surrounding environment exceeds 200 ℃, a servo motor is automatically controlled to work through the temperature transmitter, the servo motor converts electric energy into kinetic energy through a motor shaft, the motor shaft drives a driven gear to rotate through a driving gear, the driven gear transmits the kinetic energy to the tube body, the tube body is limited by a positioning bearing, so that the tube body can not be subjected to the frictional resistance of a tube wall during the rotating work, after the shaft body drives a threaded hole, the threaded hole pushes the bottom end of a corrugated sleeve to move downwards through the threaded hole, the corrugated sleeve drives a sealing sleeve to wrap the whole temperature sensing element, the surrounding temperature is isolated through the sealing sleeve, and the temperature sensing element is prevented, and the temperature sensing element passes through the parcel of antifriction film, lets the ripple cover during operation, can not lead to the temperature sensing element to receive the damage because of vibration and friction, has improved the shock resistance of temperature sensing element.

Compared with the prior art, the invention has the beneficial effects that: temperature through in the temperature transmitter prescribes a limit to control rotary mechanism work, when temperature sensing element detects ambient temperature and surpasss 200 degrees, automatic drive rotary mechanism drives the axis body work, the axis body passes through the threaded rod and promotes the sealed cover and wraps up the temperature sensing element, the temperature on every side is isolated through the sealed cover, avoid the temperature sensing element to damage because of high temperature, the ripple cover utilizes antifriction film parcel temperature sensing element surface, let temperature sensing element and ripple cover can closely laminate, the shock resistance of temperature sensing element has been improved, and make ripple cover bottom when sliding, can not rub the temperature sensing element.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural diagram of a temperature transmitter structure according to the present invention.

Fig. 2 is a schematic cross-sectional view of a temperature transmitter structure according to the present invention.

FIG. 3 is an enlarged view of A in FIG. 2 according to the present invention.

FIG. 4 is an enlarged view of B of FIG. 2 according to the present invention.

FIG. 5 is a schematic view of the construction of the sleeve of the present invention.

In the figure: junction box-1, temperature measuring tube-2, fastening bolt-3, outgoing line sealing sleeve-4, connecting line-5, temperature transmitter-6, tube body-2 a, outgoing line end-2 b, rotating mechanism-2 c, insulating sleeve-2 d, temperature sensing element-2 e, servo motor-2 c1, motor shaft-2 c2, driving gear-2 c3, isolation mechanism-2 c4, positioning bearing-2 c5, shaft body-2 c41, driven gear-2 c42, threaded rod-2 c43, insulating sleeve-2 c44, corrugated sleeve-c 1, threaded hole-c 2, joint hole-c 3, mounting ring-c 4, sealing sleeve-c 11 and antifriction film-c 12.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the following description and the accompanying drawings further illustrate the preferred embodiments of the invention.