Converter trunnion bearing damage detection device

Abstract

The utility model discloses a converter trunnion bearing damage detection device, which relates to the technical field of state monitoring of converter trunnion bearings for steelmaking in metallurgical industry and comprises a first vibration monitoring mechanism, a first displacement monitoring mechanism, a second vibration monitoring mechanism, a second displacement monitoring mechanism and a warning mechanism. The first vibration monitoring mechanism monitors vibration of the transmission side trunnion bearing; the first displacement monitoring mechanism monitors the displacement condition of the transmission side rotating joint; the second vibration monitoring mechanism monitors the vibration of the driven side trunnion bearing; the second displacement monitoring mechanism monitors the displacement condition of the driven side rotary joint; the warning mechanism comprises a data processor and an alarm, the data processor can send out an alarm signal after judging that the furnace trunnion bearing is damaged, the alarm is in signal connection with the data processor and can give an alarm after receiving the alarm signal of the data processor, the structure is simple, use is convenient, trunnion bearing abnormity can be found in time, and accident expansion is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of converter trunnion bearing state monitoring for metallurgical industry, particularly relates to a converter trunnion bearing damage detection device. BACKGROUND

[0002] At present, the converter trunnion bearing is an important component of the converter for steelmaking, and mainly functions to support the weight of the furnace shell, the supporting ring, the liquid metal, the furnace shell refractory material, the tilting reducer and the like, and also to bear the impact force of the collision between the converter and the scrap steel tank and the ladle during charging. The working characteristics of the converter trunnion bearing are heavy load, low speed (about 0.15-1.5 r / min), frequent starting and braking, and being in a splashing steel slag and dust environment. Once foreign matters such as poor lubrication, assembly problems or steel slag enter the bearing seat, the converter trunnion bearing is prone to damage. If the damage is not found in time, the trunnion and the bearing seat body are damaged, the equipment accident is expanded, the repair period is long, the cost is high, and the original equipment precision cannot be achieved after repair. SUMMARY

[0003] The utility model discloses a converter trunnion bearing damage detection device to solve the problems existing in the prior art, which has simple structure, convenient use, can find the abnormality of the trunnion bearing in time, and prevents the accident from being expanded.

[0004] To achieve the above object, the utility model provides the following scheme:

[0005] The utility model provides a converter trunnion bearing damage detection device, include: first vibration monitoring mechanism, first displacement monitoring mechanism, second vibration monitoring mechanism, second displacement monitoring mechanism and warning mechanism, first vibration monitoring mechanism sets up in the transmission side trunnion bearing seat of converter to monitor the vibration of transmission side trunnion bearing, first displacement monitoring mechanism sets up between transmission side rotary joint and the first support of transmission side rotary joint bottom of the converter to monitor the displacement condition of transmission side rotary joint, second vibration monitoring mechanism sets up in the driven side trunnion bearing seat of converter to monitor the vibration of driven side trunnion bearing, second displacement monitoring mechanism sets up between driven side rotary joint and the second support of driven side rotary joint bottom of the converter to monitor the displacement condition of driven side rotary joint, warning mechanism includes data processor and alarm, data processor is connected with first vibration monitoring mechanism, first displacement monitoring mechanism, second vibration monitoring mechanism and second displacement monitoring mechanism signal to receive and handle the signal of first displacement monitoring mechanism, second vibration monitoring mechanism and second displacement monitoring mechanism transmission, and can send alarm signal after judging converter trunnion bearing damage, alarm is connected with data processor signal and can send alarm after receiving the alarm signal of data processor.

[0006] Preferably, the first vibration monitoring mechanism comprises a first vibration sensor and a second vibration sensor, the first vibration sensor is used to be screwed on the top of the driving side trunnion bearing pedestal to monitor the vertical vibration of the driving side trunnion bearing, the second vibration sensor is used to be screwed on the side of the driving side trunnion bearing pedestal to monitor the horizontal vibration of the driving side trunnion bearing, and the first vibration sensor and the second vibration sensor are both signal connected with the data processor.

[0007] Preferably, the second vibration monitoring mechanism comprises a third vibration sensor and a fourth vibration sensor, the third vibration sensor is used to be screwed on the top of the driven side trunnion bearing pedestal to monitor the vertical vibration of the driven side trunnion bearing, the fourth vibration sensor is used to be screwed on the side of the driven side trunnion bearing pedestal to monitor the horizontal vibration of the driven side trunnion bearing, and the third vibration sensor and the fourth vibration sensor are both signal connected with the data processor.

[0008] Preferably, the first displacement monitoring mechanism comprises a first linear displacement sensor, the top end of the first linear displacement sensor is hingedly connected with the driving side rotary joint, and the bottom end of the first linear displacement sensor is hingedly connected with the first support.

[0009] Preferably, the first displacement monitoring mechanism further comprises a first upper hinge support and a first lower hinge support, the top of the first upper hinge support is fixedly connected with the driving side rotary joint, the bottom of the first lower hinge support is fixedly connected with the first support, the top end of the first linear displacement sensor is hingedly connected with the first upper hinge support, and the bottom end of the first linear displacement sensor is hingedly connected with the first lower hinge support.

[0010] Preferably, the first displacement monitoring mechanism further comprises a first gasket, the first gasket is arranged between the first lower hinge support and the first support to adapt the distance between the driving side rotary joint and the first support.

[0011] Preferably, the second displacement monitoring mechanism comprises a second linear displacement sensor, the top end of the second linear displacement sensor is hingedly connected with the driven side rotary joint, and the bottom end of the second linear displacement sensor is hingedly connected with the second support.

[0012] Preferably, the second displacement monitoring mechanism further comprises a second upper hinge support and a second lower hinge support, the top of the second upper hinge support is fixedly connected with the driven side rotary joint, the bottom of the second lower hinge support is fixedly connected with the second support, the top end of the second linear displacement sensor is hingedly connected with the second upper hinge support, and the bottom end of the second linear displacement sensor is hingedly connected with the second lower hinge support.

[0013] Preferably, a second gasket is provided between the second lower hinge support and the second bracket to accommodate the distance between the driven side rotary joint and the second bracket.

[0014] The utility model discloses relative to prior art has obtained following technical effect:

[0015] The utility model discloses a converter trunnion bearing damage detection device, through setting up a plurality of monitoring mechanism respectively for transmission side and driven side's trunnion bearing vibration and rotary joint displacement are monitored to configuration can receive and handle signal and alarm warning mechanism, realized to converter trunnion bearing operating condition's comprehensive monitoring, can discover bearing damage situation in time, sends out alarm signal to the staff in time take measures, prevent accident expansion. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced the drawing needed to be used in the embodiment, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying creative labor, still can obtain other drawings according to these drawings.

[0017] Fig. 1 The structure schematic diagram of the trunnion bearing seat at the transmission side in the converter trunnion bearing damage detection device provided by the utility model is shown.

[0018] Fig. 2 The structure schematic diagram of the trunnion bearing seat at the driven side in the converter trunnion bearing damage detection device provided by the utility model is shown.

[0019] Fig. 3 The structure schematic diagram of the first displacement monitoring mechanism installation in the converter trunnion bearing damage detection device provided by the utility model is shown.

[0020] Fig. 4 The structure schematic diagram of the second displacement monitoring mechanism installation in the converter trunnion bearing damage detection device provided by the utility model is shown.

[0021] Fig. 5 The structure schematic diagram of the second displacement monitoring mechanism in the converter trunnion bearing damage detection device provided by the utility model is shown.

[0022] In the figure: 1, the transmission side trunnion bearing seat; 2, the driven side trunnion bearing seat; 3, the first support; 4, the transmission side rotary joint; 5, the driven side rotary joint; 6, the second support; 7, the first vibration sensor; 8, the second vibration sensor; 9, the third vibration sensor; 10, the fourth vibration sensor; 11, the first displacement monitoring mechanism; 12, the second displacement monitoring mechanism; 13, the first upper hinge support; 14, the first lower hinge support; 15, the first linear displacement sensor; 16, the first gasket; 17, the pin shaft. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0024] The purpose of the present application is to provide a converter trunnion bearing damage detection device to solve the problems existing in the prior art, which is simple in structure, convenient to use, can timely find trunnion bearing abnormalities and prevent accidents from expanding.

[0025] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0026] Embodiment one

[0027] The present embodiment provides a converter trunnion bearing damage detection device, which comprises a first support, a transmission side rotary joint, a driven side rotary joint, a second support, a first vibration sensor, a second vibration sensor, a third vibration sensor, a fourth vibration sensor, a first displacement monitoring mechanism, a second displacement monitoring mechanism, a first upper hinge support, a first lower hinge support, a first linear displacement sensor, a first gasket and a pin shaft. Figs. 1-5The first vibration monitoring mechanism, the first displacement monitoring mechanism 11, the second vibration monitoring mechanism, the second displacement monitoring mechanism 12 and the warning mechanism are shown, the first vibration monitoring mechanism is arranged on the transmission side trunnion bearing seat 1 of the converter to monitor the vibration of the transmission side trunnion bearing, the first displacement monitoring mechanism 11 is arranged between the transmission side rotary joint 4 of the converter and the first support 3 at the bottom of the transmission side rotary joint 4 to monitor the displacement of the transmission side rotary joint 4, the second vibration monitoring mechanism is arranged on the driven side trunnion bearing seat 2 of the converter to monitor the vibration of the driven side trunnion bearing, the second displacement monitoring mechanism 12 is arranged between the driven side rotary joint 5 of the converter and the second support 6 at the bottom of the driven side rotary joint 5 to monitor the displacement of the driven side rotary joint 5, the warning mechanism includes a data processor and an alarm, the data processor is signal connected with the first vibration monitoring mechanism, the first displacement monitoring mechanism 11, the second vibration monitoring mechanism and the second displacement monitoring mechanism 12 to receive and process the signals transmitted by the first displacement monitoring mechanism 11, the second vibration monitoring mechanism and the second displacement monitoring mechanism 12, and can send an alarm signal after judging that the trunnion bearing is damaged, the alarm is signal connected with the data processor and can send an alarm after receiving the alarm signal of the data processor, by arranging multiple monitoring mechanisms to monitor the vibration of the trunnion bearing and the displacement of the rotary joint on the transmission side and the driven side respectively, and configuring the warning mechanism capable of receiving and processing signals and alarming, the overall monitoring of the running state of the trunnion bearing of the converter is realized, the bearing damage can be found in time, and an alarm signal is sent, so that the staff can take measures in time to prevent the accident from expanding.

[0028] In one preferred scheme of the embodiment, the first vibration monitoring mechanism includes a first vibration sensor 7 and a second vibration sensor 8, the first vibration sensor 7 is used to be screwed on the top of the transmission side trunnion bearing seat 1 to monitor the vertical vibration of the transmission side trunnion bearing, the second vibration sensor 8 is used to be screwed on the side of the transmission side trunnion bearing seat 1 to monitor the horizontal vibration of the transmission side trunnion bearing, the first vibration sensor 7 and the second vibration sensor 8 are both signal connected with the data processor, two vibration sensors at different positions are used to monitor the vertical and horizontal vibrations respectively, so that the vibration monitoring of the transmission side trunnion bearing is more comprehensive and detailed. The screwing mode facilitates the installation and disassembly of the sensor, and is convenient for subsequent maintenance and replacement. The sensor is signal connected with the data processor, can transmit the monitored vibration signal to the data processor for analysis and processing in time, and improves the timeliness and accuracy of the monitoring.

[0029] In a preferred scheme of the embodiment, the second vibration monitoring mechanism comprises a third vibration sensor 9 and a fourth vibration sensor 10, the third vibration sensor 9 is used to be screwed on the top of the driven side trunnion bearing seat 2 to monitor the vertical vibration of the driven side trunnion bearing, the fourth vibration sensor 10 is used to be screwed on the side of the driven side trunnion bearing seat 2 to monitor the horizontal vibration of the driven side trunnion bearing, the third vibration sensor 9 and the fourth vibration sensor 10 are both signal connected with the data processor, the second vibration monitoring mechanism monitors the vertical and horizontal vibration of the driven side trunnion bearing through the vibration sensors in two different positions, and comprehensively understands the vibration condition of the driven side trunnion bearing. The screwing facilitates installation and maintenance, and the signal connection ensures that the data is transmitted to the data processor in time, which provides a basis for accurately judging the state of the driven side trunnion bearing.

[0030] In a preferred scheme of the embodiment, the first displacement monitoring mechanism 11 comprises a first linear displacement sensor 15, the top end of the first linear displacement sensor 15 is hingedly connected with the driving side rotary joint 4, and the bottom end of the first linear displacement sensor 15 is hingedly connected with the first support 3. The hinged connection can flexibly adapt to the displacement change of the driving side rotary joint 4 in the running process, so that the first linear displacement sensor 15 can more accurately measure the actual displacement condition of the driving side rotary joint 4, and provide reliable data for judging whether the displacement deviation of the driving side trunnion due to bearing damage occurs.

[0031] In a preferred scheme of the embodiment, the converter trunnion bearing damage detection device further comprises a first upper hinge support 13 and a first lower hinge support 14, the top of the first upper hinge support 13 is fixedly connected with the transmission side rotary joint 4, the bottom of the first lower hinge support 14 is fixedly connected with the first support 3, the top end of the first linear displacement sensor 15 is hingedly connected with the first upper hinge support 13 through a pin shaft 17, the bottom end of the first linear displacement sensor 15 is hingedly connected with the first lower hinge support 14 through the pin shaft 17, and the arrangement of the first upper hinge support 13 and the first lower hinge support 14 enhances the stability of the connection between the first linear displacement sensor 15 and the transmission side rotary joint 4 and the first support 3. The hinged connection through the pin shaft 17 ensures the reliability of the connection and allows a certain degree of freedom between the components, thereby ensuring that the first linear displacement sensor 15 can still normally measure the displacement of the transmission side rotary joint 4 under complex working conditions, and improving the measurement accuracy and stability. In a preferred scheme of the embodiment, the converter trunnion bearing damage detection device further comprises a first gasket 16, which is arranged between the first lower hinge support and the first support 3 to adapt to the distance between the transmission side rotary joint 4 and the first support 3. The arrangement of the first gasket 16 can flexibly adjust the distance between the transmission side rotary joint 4 and the first support 3 according to the actual installation and use, ensure the positional accuracy of the first linear displacement sensor 15 during installation and operation, enable the sensor to accurately measure displacement, and avoid measurement errors or sensor damage caused by an inappropriate distance.

[0032] In a preferred scheme of the embodiment, the second displacement monitoring mechanism 12 comprises a second linear displacement sensor, the top end of the second linear displacement sensor is hingedly connected with the driven side rotary joint 5, and the bottom end of the second linear displacement sensor is hingedly connected with the second support 6, which can accurately measure the displacement change of the driven side rotary joint 5, and cooperates with the first displacement monitoring mechanism 11 to monitor the displacement of the trunnion from two directions, further improving the detection accuracy of the converter trunnion bearing damage, and enabling the displacement deviation problem caused by bearing damage on the driven side to be discovered in a timely manner.

[0033] In a preferred scheme of the embodiment, the converter trunnion bearing damage detection device further comprises a second upper hinge support and a second lower hinge support, the top of the second upper hinge support is fixedly connected with the driven side rotary joint 5, the bottom of the second lower hinge support is fixedly connected with the second support 6, the top end of the second linear displacement sensor is hingedly connected with the second upper hinge support through a pin shaft 17, and the bottom end of the second linear displacement sensor is hingedly connected with the second lower hinge support through the pin shaft 17, and the second upper hinge support and the second lower hinge support improve the stability of the connection between the second linear displacement sensor and the driven side rotary joint 5 and the second support 6. The pin shaft 17 hinged mode ensures that the sensor can adapt to the displacement change of the driven side rotary joint 5 while ensuring the reliability of the connection, so that the measurement is more stable and accurate, and provides strong support for accurately judging the state of the driven side trunnion bearing. In a preferred scheme of the embodiment, the converter trunnion bearing damage detection device further comprises a second gasket, which is arranged between the second lower hinge support and the second support 6 to adapt to the distance between the driven side rotary joint 5 and the second support 6, and the second gasket can adjust the distance between the driven side rotary joint 5 and the second support 6, so that the second linear displacement sensor is in the best position during installation and work, and the sensor can accurately measure the displacement of the driven side rotary joint 5, thereby effectively improving the accuracy and reliability of the entire detection device for monitoring the displacement of the driven side trunnion bearing.

[0034] Embodiment two

[0035] The embodiment provides a use method of the converter trunnion bearing damage detection device of embodiment one, which comprises the following steps:

[0036] When the converter starts to run, each vibration sensor in the first vibration monitoring mechanism and the second vibration monitoring mechanism monitors the vibration data of the trunnion bearing in the vertical and horizontal directions in real time, and the linear displacement sensors of the first displacement monitoring mechanism 11 and the second displacement monitoring mechanism 12 monitor the displacement of the driving side rotary joint 4 and the driven side rotary joint 5 in real time.

[0037] After the first vibration sensor 7, the second vibration sensor 8, the third vibration sensor 9, the fourth vibration sensor 10, the first linear displacement sensor 15 and the second linear displacement sensor convert the monitored analog electrical signals into digital signals, the signals are transmitted to the data processor through the signal lines. The data processor analyzes and processes the received vibration and displacement data according to a preset algorithm, which may involve multiple links such as signal filtering, feature extraction and threshold comparison. For example, the measured vibration amplitude, frequency and other parameters are compared with the standard parameter range under the normal running state or the set alarm threshold, and whether the displacement exceeds the normal fluctuation range is analyzed, so as to judge whether the converter trunnion bearing is in the normal running state or has damage signs.

[0038] If the data processor analyzes and judges that the converter trunnion bearing exists damage condition, it will send out alarm signal in time.

[0039] The principle and implementation mode of the utility model are described by applying specific examples in the utility model, and the above embodiment is only used for helping to understand the method and core idea of the utility model; meanwhile, according to the idea of the utility model, the specific implementation mode and application range will be changed by the general technical personnel in the field. In conclusion, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A device for detecting damage to a trunnion bearing of a converter, characterized by: The application relates to a converter ear shaft bearing damage monitoring device, which comprises the following parts: a first vibration monitoring mechanism arranged on a transmission side ear shaft bearing seat of a converter to monitor the vibration of a transmission side ear shaft bearing; a first displacement monitoring mechanism arranged between a transmission side rotary joint and a first support at the bottom of the transmission side rotary joint of the converter to monitor the displacement of the transmission side rotary joint; a second vibration monitoring mechanism arranged on a driven side ear shaft bearing seat of the converter to monitor the vibration of a driven side ear shaft bearing; a second displacement monitoring mechanism arranged between a driven side rotary joint and a second support at the bottom of the driven side rotary joint of the converter to monitor the displacement of the driven side rotary joint; an alarm mechanism comprising a data processor and an alarm, wherein the data processor is connected with the first vibration monitoring mechanism, the first displacement monitoring mechanism, the second vibration monitoring mechanism and the second displacement monitoring mechanism to receive and process the signals transmitted by the first displacement monitoring mechanism, the second vibration monitoring mechanism and the second displacement monitoring mechanism, and the data processor can send an alarm signal when judging that the ear shaft bearing is damaged; the alarm is connected with the data processor and can send an alarm when receiving the alarm signal of the data processor.

2. The vessel trunnion bearing damage detection apparatus of claim 1, wherein: The first vibration monitoring mechanism comprises a first vibration sensor and a second vibration sensor, the first vibration sensor is used for being screwed on the top of the transmission side ear shaft bearing seat to monitor the vertical vibration of the transmission side ear shaft bearing, the second vibration sensor is used for being screwed on the side of the transmission side ear shaft bearing seat to monitor the horizontal vibration of the transmission side ear shaft bearing, and the first vibration sensor and the second vibration sensor are both connected with the data processor.

3. The vessel trunnion bearing damage detection apparatus of claim 1, wherein: The second vibration monitoring mechanism comprises a third vibration sensor and a fourth vibration sensor, the third vibration sensor is used for being screwed on the top of the driven side ear shaft bearing seat to monitor the vertical vibration of the driven side ear shaft bearing, the fourth vibration sensor is used for being screwed on the side of the driven side ear shaft bearing seat to monitor the horizontal vibration of the driven side ear shaft bearing, and the third vibration sensor and the fourth vibration sensor are both connected with the data processor.

4. The vessel trunnion bearing damage detection apparatus of claim 1, wherein: The first displacement monitoring mechanism comprises a first linear displacement sensor, the top end of the first linear displacement sensor is hingedly connected with the transmission side rotary joint, and the bottom end of the first linear displacement sensor is hingedly connected with the first support.

5. The vessel trunnion bearing damage detection apparatus of claim 4, wherein: The first displacement monitoring mechanism further comprises a first upper hinge support and a first lower hinge support, the top of the first upper hinge support is fixedly connected with the transmission side rotary joint, the bottom of the first lower hinge support is fixedly connected with the first support, the top end of the first linear displacement sensor is hingedly connected with the first upper hinge support, and the bottom end of the first linear displacement sensor is hingedly connected with the first lower hinge support.

6. The vessel trunnion bearing damage detection apparatus of claim 5, wherein: The first gasket is arranged between the first lower hinge support and the first support to accommodate the distance between the transmission side rotary joint and the first support.

7. The vessel trunnion bearing failure detection apparatus of claim 1, wherein: The second displacement monitoring mechanism comprises a second linear displacement sensor, a top end of the second linear displacement sensor is hingedly connected with the driven side rotary joint, and a bottom end of the second linear displacement sensor is hingedly connected with the second support.

8. The vessel trunnion bearing damage detection apparatus of claim 7, wherein: The second upper hinge support and the second lower hinge support are further included, a top of the second upper hinge support is fixedly connected with the driven side rotary joint, a bottom of the second lower hinge support is fixedly connected with the second support, a top end of the second linear displacement sensor is hingedly connected with the second upper hinge support, and a bottom end of the second linear displacement sensor is hingedly connected with the second lower hinge support.

9. The vessel trunnion bearing damage detection apparatus of claim 8, wherein: The second gasket is arranged between the second lower hinge support and the second support to accommodate the distance between the driven side rotary joint and the second support.

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