阅读说明：本技术 转底炉炉盘跑偏测试装置 (Deflection testing device for rotary hearth furnace plate ) 是由 彭亚环 彭福成 温伊宁 李卫国 黄辉 董磊 林培芳 贺育峰 龙芳菊 杨小华 车玉 于 2021-07-16 设计创作，主要内容包括：本发明公开了转底炉炉盘跑偏测试装置,包括随动机构,随动机构设有随动盘和第一预紧弹簧,随动盘在第一预紧弹簧的作用下抵接转底炉炉盘并能够随转底炉炉盘转动,且随动盘能够沿第一预紧弹簧的轴向移动；记录显示机构,连接随动盘,用于记录随动盘沿第一预紧弹簧的轴向的运动轨迹；报警机构,连接记录显示机构,用于在随动盘沿第一预紧弹簧的轴向的运动量超出设定值时进行报警。当转底炉炉盘转动中心与与设计中心偏移时,偏移的转底炉炉盘会直接推动随动机构的随动盘做直线往复运动,当运动轨迹的偏移量超出设定值,将触发报警机构完成报警动作。本实施例能够即时记录并反映转底炉炉盘的跑偏情况,具有工作可靠、自动化程度高等特点。(The invention discloses a deflection testing device for a rotary hearth furnace plate, which comprises a follow-up mechanism, wherein the follow-up mechanism is provided with a follow-up plate and a first pre-tightening spring, the follow-up plate is abutted against the rotary hearth furnace plate under the action of the first pre-tightening spring and can rotate along with the rotary hearth furnace plate, and the follow-up plate can move along the axial direction of the first pre-tightening spring; the recording and displaying mechanism is connected with the follow-up disc and is used for recording the axial motion track of the follow-up disc along the first pre-tightening spring; and the alarm mechanism is connected with the recording and displaying mechanism and is used for giving an alarm when the motion amount of the follow-up disc along the axial direction of the first pre-tightening spring exceeds a set value. When the rotating center of the rotary hearth furnace plate deviates from the design center, the deviated rotary hearth furnace plate can directly push the follow-up plate of the follow-up mechanism to do linear reciprocating motion, and when the deviation of the motion track exceeds a set value, the alarm mechanism is triggered to complete the alarm action. The embodiment can instantly record and reflect the deviation condition of the rotary hearth furnace plate, and has the characteristics of reliable work, high automation degree and the like.)

1. The utility model provides a rotary hearth furnace stove plate off tracking testing arrangement which characterized in that includes:

the follow-up mechanism is provided with a follow-up disc and a first pre-tightening spring, the follow-up disc is abutted against the rotary hearth furnace disc under the action of the first pre-tightening spring and can rotate along with the rotary hearth furnace disc, and the follow-up disc can move along the axial direction of the first pre-tightening spring;

the recording and displaying mechanism is connected with the follow-up disc and is used for recording the axial motion track of the follow-up disc along the first pre-tightening spring;

and the alarm mechanism is connected with the recording and displaying mechanism and used for giving an alarm when the motion amount of the follow-up disc along the axial direction of the first pre-tightening spring exceeds a set value.

2. The off tracking test device of the rotary hearth furnace tray according to claim 1, characterized in that: the servo mechanism further comprises a first support, a first sliding plate fixedly arranged on the first support, a servo disc support arranged on the first sliding plate in a sliding mode along the axial direction of the first pre-tightening spring, and a rotating central rod fixedly arranged on the servo disc support; the follow-up disc is rotatably installed on the rotating center rod, and the first pre-tightening spring is located between the first sliding plate and the follow-up disc support.

3. The off tracking test device of the rotary hearth furnace disc according to claim 2, characterized in that: the recording display mechanism comprises a second bracket, a recording display plate horizontally arranged on the second bracket, a recording display rod and a recording needle vertically arranged; the second support is arranged at one end, far away from the rotary hearth furnace plate, of the first support, one end of the recording display rod is connected with the follow-up plate support, the other end of the recording display rod is connected with the top of the recording needle, and the recording needle is abutted to the recording display plate.

4. The off tracking test device of the rotary hearth furnace disc according to claim 3, characterized in that: a baffle is arranged at one end, away from the rotary hearth furnace plate, of the first sliding plate, a abdicating hole is formed in the baffle, and the aperture of the abdicating hole is larger than the rod diameter of the recording display rod and smaller than the maximum outer diameter of the first pre-tightening spring; the recording display rod penetrates through the abdicating hole, and the first pre-tightening spring is sleeved on the recording display rod.

5. The off tracking test device of the rotary hearth furnace disc according to claim 4, characterized in that: the baffle sets up the groove of stepping down in the up end, the groove of stepping down with the hole intercommunication of stepping down, the groove width in the groove of stepping down with the aperture in the hole of stepping down equals.

6. The off tracking test device of the rotary hearth furnace disc according to claim 3, characterized in that: the recording display mechanism further comprises a second sliding plate arranged on the second support, the second sliding plate is located above the recording needle, a second pre-tightening spring is arranged on the second sliding plate in a sliding mode along the axial direction of the first pre-tightening spring, the second pre-tightening spring is distributed in the vertical direction, and the lower end of the second pre-tightening spring abuts against the recording needle.

7. The off tracking test device of the rotary hearth furnace disc according to claim 3, characterized in that: the recording display rod comprises a first rod section and a second rod section, and the first rod section and the second rod section are connected into a whole through threads.

8. The off tracking test device of the rotary hearth furnace disc according to claim 3, characterized in that: the recording display panel is made of an aluminum plate.

9. The off tracking test device of the rotary hearth furnace disc according to claim 3, characterized in that: the alarm mechanism comprises a third support, an alarm rod arranged on the recording display rod, a first limit switch arranged on the third support and a first buzzer connected with the first limit switch, and the first limit switch is located at a position where the first limit switch can be in contact with the alarm rod when the movement amount of the follow-up disc exceeds a negative set value.

10. The off tracking test device of the rotary hearth furnace disc according to claim 9, characterized in that: the alarm mechanism further comprises a second limit switch arranged on the third support and a second buzzer connected with the second limit switch, and the second limit switch is located at a position where the second limit switch can be in contact with the alarm rod when the movement amount of the follow-up disc exceeds a positive set value.

Technical Field

The invention relates to metallurgical iron-containing zinc dust and sludge treatment equipment, in particular to a deflection testing device for a rotary hearth furnace disc.

Background

At present, the non-blast furnace smelting new process is rapidly developing in the world, wherein the rotary hearth furnace reduction technology is an important component of the non-blast furnace smelting new process. A rotary hearth furnace is an industrial installation in which, during operation, the furnace roof and walls remain stationary while the furnace floor rotates along an endless track. The rotary hearth furnace is completely smelted by vanadium-titanium magnetite concentrate, sintering pellet treatment is not needed, coke smelting is not needed, a sintering flue gas desulfurization process and a coke smelting process are fundamentally distinguished, energy is saved, and the environment is protected, so that another new process except a blast furnace process is provided for large-scale smelting of vanadium, titanium, iron and other ores, and the application prospect of the rotary hearth furnace in the future is very wide.

However, the furnace plate of the rotary hearth furnace has the problem of deviation in the operation of the rotary hearth furnace, and no equipment for displaying, recording and alarming the deviation phenomenon exists in the prior art. The furnace plate deviation continuously goes along with the operation of the rotary hearth furnace, and the furnace plate deviation can exceed the design deviation range in time and month, so that serious equipment accidents can be caused, and even blowing-out and production halt can be caused for maintenance.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a deflection testing device for a rotary hearth furnace hearth plate, which can reflect the deflection condition of the rotary hearth furnace hearth plate in time.

According to the embodiment of the invention, the deflection testing device for the rotary hearth furnace disc comprises:

the follow-up mechanism is provided with a follow-up disc and a first pre-tightening spring, the follow-up disc is abutted against the rotary hearth furnace disc under the action of the first pre-tightening spring and can rotate along with the rotary hearth furnace disc, and the follow-up disc can move along the axial direction of the first pre-tightening spring;

the recording and displaying mechanism is connected with the follow-up disc and is used for recording the axial motion track of the follow-up disc along the first pre-tightening spring;

and the alarm mechanism is connected with the recording and displaying mechanism and used for giving an alarm when the motion amount of the follow-up disc along the axial direction of the first pre-tightening spring exceeds a set value.

The deflection testing device for the rotary hearth furnace disc provided by the embodiment of the invention at least has the following technical effects: when the rotary hearth furnace plate rotates, the follow-up plate can synchronously rotate along with the rotary hearth furnace plate under the combined action of the pretightening force of the first pretightening spring and the friction force between the pretightening force and the rotary hearth furnace plate. Because the follow-up disc synchronously clings to the rotary hearth furnace disc to move, when the rotary center of the rotary hearth furnace disc does not coincide with the design center, the track of the running center of any point on the rotary hearth furnace disc deviates from the original design center, the deviated rotary hearth furnace disc directly pushes the follow-up disc of the follow-up mechanism to do linear reciprocating motion, and the reciprocating motion track of the follow-up disc is directly recorded on the recording and displaying mechanism. When the movement track exceeds a set value, namely the rotary hearth furnace plate is seriously deviated, the alarm mechanism is triggered to complete the alarm action. The embodiment can instantly record and reflect the deviation condition of the rotary hearth furnace plate, and has the characteristics of reliable work, low manufacturing cost, continuous action, high automation degree, stable performance, small and exquisite and simple structure and the like.

According to some embodiments of the present invention, the follower mechanism further comprises a first bracket, a first sliding plate fixedly arranged on the first bracket, a follower disk bracket arranged on the first sliding plate in a sliding manner along the axial direction of the first pre-tightening spring, and a rotating center rod fixedly arranged on the follower disk bracket; the follow-up disc is rotatably installed on the rotating center rod, and the first pre-tightening spring is located between the first sliding plate and the follow-up disc support.

According to some embodiments of the present invention, the recording display mechanism includes a second support, a recording display panel horizontally disposed on the second support, a recording display rod, and a recording needle vertically disposed; the second support is arranged at one end, far away from the rotary hearth furnace plate, of the first support, one end of the recording display rod is connected with the follow-up plate support, the other end of the recording display rod is connected with the top of the recording needle, and the recording needle is abutted to the recording display plate.

According to some embodiments of the invention, a baffle plate is arranged at one end of the first sliding plate, which is far away from the rotary hearth furnace disc, a abdicating hole is arranged on the baffle plate, and the aperture of the abdicating hole is larger than the rod diameter of the recording display rod and smaller than the maximum outer diameter of the first pre-tightening spring; the recording display rod penetrates through the abdicating hole, and the first pre-tightening spring is sleeved on the recording display rod.

According to some embodiments of the invention, the baffle plate is provided with a yielding groove on the upper end surface, the yielding groove is communicated with the yielding hole, and the groove width of the yielding groove is equal to the aperture of the yielding hole.

According to some embodiments of the present invention, the recording and displaying mechanism further includes a second sliding plate disposed on the second support, the second sliding plate is located above the recording needle, a second pre-tightening spring is disposed on the second sliding plate in a sliding manner along an axial direction of the first pre-tightening spring, the second pre-tightening spring is distributed along a vertical direction, and a lower end of the second pre-tightening spring abuts against the recording needle.

According to some embodiments of the invention, the record display rod comprises a first rod segment and a second rod segment, the first rod segment and the second rod segment being integrally connected by a thread.

According to some embodiments of the invention, the recording display panel is made of an aluminum plate.

According to some embodiments of the present invention, the alarm mechanism includes a third bracket, an alarm lever provided on the record display lever, a first limit switch provided on the third bracket, and a first buzzer connected to the first limit switch, the first limit switch being located at a position where the alarm lever can be contacted when the amount of movement of the follower disk exceeds a negative set value. The recording display rod reciprocates along with the follow-up disc support, when the amount of exercise of the follow-up disc exceeds a negative set value, namely the rotation center of the rotary hearth furnace disc deviates towards the direction far away from the follow-up disc along the axial direction of the first early warning spring, at the moment, a shift lever of the first limit switch touches the alarm rod, and the first buzzer is triggered to send out an alarm signal.

According to some embodiments of the invention, the alarm mechanism further comprises a second limit switch provided on the third bracket and a second buzzer connected to the second limit switch, the second limit switch being located at a position where the alarm lever can be contacted when the amount of movement of the follower disk exceeds a positive set value. When the amount of exercise of the follow-up disc exceeds a positive set value, namely the rotation center of the furnace disc of the rotary hearth furnace deviates towards the direction close to the follow-up disc along the axial direction of the first early warning spring, at the moment, a shift lever of the second limit switch touches the alarm rod, and the second buzzer is triggered to send out an alarm signal.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic overall structure diagram of a deflection testing device for a rotary hearth furnace disc of the invention;

FIG. 2 is a top view of the deflection testing device for the furnace plate of the rotary hearth furnace;

FIG. 3 is a first view of a follow-up structure of the deflection testing device for the furnace plate of the rotary hearth furnace;

FIG. 4 is a second view of the follow-up structure of the deflection testing device for the rotary hearth furnace disc of the invention;

reference numerals:

the device comprises a follower disc 101, a first pre-tightening spring 102, a first support 103, a first sliding plate 104, a follower disc support 105, a rotating center rod 106, a second support 107, a recording display panel 108, a recording display rod 109, a recording needle 110, a baffle 111, an abdicating hole 112, an abdicating groove 113, a second sliding plate 114, a second pre-tightening spring 115, an alarm rod 116, a first limit switch 117, a first buzzer 118, a second limit switch 119, a second buzzer 120 and a rotary hearth furnace disc 200.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, an embodiment of the present invention provides a deflection testing apparatus for a rotary hearth furnace, including:

the follow-up mechanism is provided with a follow-up disc 101 and a first pre-tightening spring 102, the follow-up disc 101 abuts against the rotary hearth furnace disc 200 under the action of the first pre-tightening spring 102 and can rotate along with the rotary hearth furnace disc 200, and the follow-up disc 101 can move along the axial direction of the first pre-tightening spring 102;

the recording and displaying mechanism is connected with the follow-up disc 101 and is used for recording the axial motion track of the follow-up disc 101 along the first pre-tightening spring 102;

and the alarm mechanism is connected with the record display mechanism and is used for giving an alarm when the movement amount of the follow-up disc 101 along the axial direction of the first pre-tightening spring 102 exceeds a set value.

The deflection testing device for the rotary hearth furnace disc provided by the embodiment of the invention at least has the following technical effects: when the rotary hearth furnace tray 200 rotates, the follow-up tray 101 can synchronously rotate along with the rotary hearth furnace tray 200 under the combined action of the pretightening force of the first pretightening spring 102 and the friction force between the pretightening force and the rotary hearth furnace tray 200. Because the furnace plate 200 of the rotary hearth furnace synchronously clings to the furnace plate 200 of the rotary hearth furnace, when the rotating center of the furnace plate 200 of the rotary hearth furnace is not coincident with the design center, the track of the operating center of any point on the furnace plate 200 of the rotary hearth furnace deviates from the original design center, the deviated furnace plate 200 of the rotary hearth furnace directly pushes the follow-up plate 101 of the follow-up mechanism to do linear reciprocating motion, and the reciprocating motion track of the follow-up plate 101 is directly recorded on the recording and displaying mechanism. When the movement track exceeds a set value, namely the rotary hearth furnace tray 200 is seriously deviated, the alarm mechanism is triggered to complete the alarm action. The embodiment can record and reflect the deviation condition of the rotary hearth furnace tray 200 in real time, and has the characteristics of reliable work, continuous action, high automation degree, simple structure and the like.

In some embodiments of the present invention, the follower mechanism further includes a first bracket 103, a first sliding plate 104 fixedly disposed on the first bracket 103, a follower disk bracket 105 slidably disposed on the first sliding plate 104 along an axial direction of the first preload spring 102, and a rotating center rod 106 fixedly disposed on the follower disk bracket 105; the follower disk 101 is rotatably mounted on the rotating center rod 106, and the first pretensioned spring 102 is located between the first slide plate 104 and the follower disk holder 105. When the rotary hearth furnace hearth 200 rotates, the follower disc 101 rotates synchronously, and when the rotation center of the rotary hearth furnace hearth 200 deviates from the design center, the follower disc 101 makes a linear reciprocating motion, so that the follower disc support 105 is pushed to slide on the first sliding plate 104.

In some embodiments of the present invention, the recording display mechanism includes a second support 107, a recording display panel 108 horizontally disposed on the second support 107, a recording display lever 109, and a recording needle 110 vertically disposed; the second bracket 107 is arranged at one end of the first bracket 103 far away from the rotary hearth furnace hearth 200, one end of a recording display rod 109 is connected with the follower disk bracket 105, the other end is connected with the top of a recording needle 110, and the recording needle 110 abuts against the recording display plate 108. The recording display rod 109 transmits the motion of the follower disk 101 to the recording needle 110, and the recording needle 110 moves on the recording display plate 108 so as to record the motion track of the follower disk 101, so that the embodiment can reflect the offset condition of the rotary hearth furnace disk 200 in real time.

In some embodiments of the invention, a baffle 111 is arranged at one end of the first sliding plate 104 far away from the rotary hearth furnace hearth 200, a relief hole 112 is arranged on the baffle 111, and the aperture of the relief hole 112 is larger than the rod diameter of the recording display rod 109 and smaller than the maximum outer diameter of the first pre-tightening spring 102; the recording display rod 109 passes through the abdicating hole 112, and the first pre-tightening spring 102 is sleeved on the recording display rod 109. With reference to fig. 1 and 4, a first pre-tightening spring 102 is located between the baffle 111 and the follower disk support 105, and a end of the first pre-tightening spring, which is close to the recording display rod 109, is sleeved on the recording display rod 109, the first pre-tightening spring 102 abuts the follower disk 101 against the rotary hearth furnace disk 200 through a pre-tightening force, when the rotary hearth furnace disk 200 deviates and the rotary hearth furnace disk 200 continues to rotate, the follower disk 101 is pushed to perform linear reciprocating motion, and the first pre-tightening spring 102 can be compressed without falling off from the follower disk support 105 due to the design of the abdication hole 112, which is beneficial to the stability of the structure.

In some embodiments of the present invention, the baffle 111 has an abdicating groove 113 formed on the upper end surface thereof, the abdicating groove 113 is communicated with the abdicating hole 112, and the groove width of the abdicating groove 113 is equal to the aperture of the abdicating hole 112. The setting of the groove 113 of stepping down makes this device when dismantling, and the record shows that pole 109 more does benefit to and separates from this device, and is the same, and the installation of record display pole 109 will also be more convenient.

In some embodiments of the present invention, the recording and displaying mechanism further includes a second sliding plate 114 disposed on the second support 107, the second sliding plate 114 is located above the recording needle 110, a second pre-tightening spring 115 is disposed on the second sliding plate 114 in a sliding manner along an axial direction of the first pre-tightening spring 102, the second pre-tightening spring 115 is distributed along a vertical direction, and a lower end of the second pre-tightening spring 115 abuts against the recording needle 110.

In some embodiments of the present invention, the record display rod 109 comprises a first rod segment and a second rod segment, the first rod segment and the second rod segment being integrally connected by threads. When the first pre-tightening spring 102 needs to be replaced, the recording and displaying rod 109 is detached, so that the first pre-tightening spring 102 can be more conveniently detached.

In some embodiments of the present invention, the recording display panel 108 is made of an aluminum plate. The recording display panel 108 and the second support 107 may be configured to be detachably connected to facilitate replacement of the recording display panel 108.

In some embodiments of the present invention, the alarm mechanism includes a third bracket (not shown), an alarm lever 116 provided on the record display lever 109, a first limit switch 117 provided on the third bracket, and a first buzzer 118 connected to the first limit switch 117, the first limit switch 117 being located at a position where it can contact the alarm lever 116 when the amount of movement of the follower disk 101 exceeds a negative set value. The recording display rod 109 moves back and forth along with the follow-up disc bracket 105, when the movement amount of the follow-up disc 101 exceeds a negative set value, namely the rotation center of the rotary hearth furnace disc 200 deviates towards the direction far away from the follow-up disc 101 along the axial direction of the first early warning spring 101, at the moment, the shift rod of the first limit switch 117 touches the alarm rod 116, and the first buzzer 118 is triggered to send out an alarm signal.

In some embodiments of the present invention, the alarm mechanism further includes a second limit switch 119 provided on the third bracket and a second buzzer 120 connected to the second limit switch 119, the second limit switch 119 being located at a position where it can contact the alarm lever 116 when the amount of movement of the follower disk 101 exceeds a positive set value. When the amount of motion of the follower disc 101 exceeds a positive set value, namely the rotation center of the rotary hearth furnace tray 200 deviates towards the direction close to the follower disc 101 along the axial direction of the first early warning spring 102, at this time, the shift lever of the second limit switch 119 touches the alarm lever 116, and triggers the second buzzer 120 to send out an alarm signal.

The following describes in detail a deflection test device for a rotary hearth furnace hearth according to an embodiment of the present invention in a specific embodiment with reference to fig. 1 and 4. It is to be understood that the following description is only exemplary, and not a specific limitation of the invention.

As shown in fig. 1, the deflection testing device for the furnace plate of the rotary hearth furnace is provided with a first support 103, a first sliding plate 104 is arranged on the first support 103, a follower plate support 105 is arranged on the first sliding plate 104, a rotating center rod 106 is arranged on the follower plate support 105, a follower plate 101 is rotatably arranged on the rotating center rod 106, and the follower plate 101 is attached to the furnace plate 200 of the rotary hearth furnace to be tested. One end of the first sliding plate 104, which is far away from the rotary hearth furnace plate 200, is provided with a baffle 111, the baffle 111 is provided with a yielding hole 112, the recording display rod 109 penetrates through the yielding hole 112 and then is connected with the follow-up disk support 105, one end of the recording display rod 109 is sleeved with a first pre-tightening spring 102, the first pre-tightening spring 102 is located between the baffle 111 and the follow-up disk support 105, the follow-up disk 101 is abutted to the rotary hearth furnace plate 200 through the pre-tightening force by the first pre-tightening spring 102, and it is worth explaining that the aperture of the yielding hole 112 is larger than the rod diameter of the recording display rod 109 and smaller than the maximum outer diameter of the first pre-tightening spring 102, and the follow-up disk support 105 can slide on the first sliding plate 104 along the axial direction of the first pre-tightening spring 102. The furnace plate deviation testing device of the rotary hearth furnace is provided with a second support 107, a horizontal recording display plate 108 is arranged on the second support 107, a recording needle 110 is pre-pressed on the recording display plate 108, the other end of a recording display rod 109 is connected with the recording needle 110, the recording display rod 109 transmits the motion of the follow-up plate 101 to the recording needle 110, and the recording needle 110 moves on the recording display plate 108 so as to record the motion track of the follow-up plate 101. The deflection testing device for the rotary hearth furnace plate further comprises an alarm mechanism, the alarm mechanism comprises a third support (not shown in the figure), an alarm rod 116 arranged on the record display rod 109, a first limit switch 117 arranged on the third support and a first buzzer 118 connected with the first limit switch 117, and the first limit switch 117 is located at a position where the first limit switch 117 can be in contact with the alarm rod 116 when the movement amount of the follow-up plate 101 exceeds a negative set value. The third bracket is further provided with a second limit switch 119 and a second buzzer 120 connected to the second limit switch 119, and the second limit switch 119 is located at a position where it can contact the alarm lever 116 when the amount of movement of the follower disk 101 exceeds a positive set value.

According to the deflection testing device for the rotary hearth furnace disc, provided by the embodiment of the invention, at least some effects as follows can be achieved: when the rotary hearth furnace tray 200 rotates, the follow-up tray 101 can synchronously rotate along with the rotary hearth furnace tray 200 under the combined action of the pretightening force of the first pretightening spring 102 and the friction force between the pretightening force and the rotary hearth furnace tray 200. Because the rotary hearth furnace tray 200 synchronously clings to the rotary hearth furnace tray 200 to move, when the rotation center of the rotary hearth furnace tray 200 is not coincident with the design center, the operation center track of any point on the rotary hearth furnace tray 200 deviates from the original design center, and the deviated rotary hearth furnace tray 200 can directly push the follow-up disc 101 of the follow-up mechanism to do linear reciprocating motion. The linear reciprocating motion of the follower disk 101 is transmitted to the recording pin 110 through the recording display rod 109, and the recording pin 110 records the motion trace of the follower disk 101 on the recording display board 108. When the motion amount of the follow-up disc 101 exceeds a negative set value, namely the rotation center of the rotary hearth furnace tray 200 deviates towards the direction far away from the follow-up disc 101 along the axial direction of the first early warning spring 101, at the moment, a shift lever of the first limit switch 117 touches the alarm rod 116, and the first buzzer 118 is triggered to send out an alarm signal; when the amount of motion of the follower disc 101 exceeds a positive set value, namely the rotation center of the rotary hearth furnace tray 200 deviates towards the direction close to the follower disc 101 along the axial direction of the first early warning spring 102, at this time, the shift lever of the second limit switch 119 touches the alarm lever 116, and triggers the second buzzer 120 to send out an alarm signal. The embodiment can record and reflect the deviation condition of the rotary hearth furnace tray 200 in real time, and has the characteristics of reliable work, continuous action, high automation degree, simple structure and the like.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.