CN220104468U - Rolling mill spindle device fault state on-line monitoring device and rolling mill spindle device - Google Patents
Rolling mill spindle device fault state on-line monitoring device and rolling mill spindle device Download PDFInfo
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- CN220104468U CN220104468U CN202320852881.4U CN202320852881U CN220104468U CN 220104468 U CN220104468 U CN 220104468U CN 202320852881 U CN202320852881 U CN 202320852881U CN 220104468 U CN220104468 U CN 220104468U
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- 238000005096 rolling process Methods 0.000 title claims abstract description 116
- 238000012806 monitoring device Methods 0.000 title claims abstract description 50
- 238000012544 monitoring process Methods 0.000 claims abstract description 15
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 description 9
- 238000010168 coupling process Methods 0.000 description 9
- 238000005859 coupling reaction Methods 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses a fault state on-line monitoring device of rolling mill spindle equipment and rolling mill spindle equipment, which relate to the technical field of metallurgical industry equipment and comprise the following components: the monitoring device comprises at least one monitoring device body, a rolling mill and a control device, wherein the monitoring device body comprises a base, a telescopic cylinder body, a position sensor and a connecting rod; the telescopic cylinder body comprises a fixed part and a movable part, the fixed part is fixedly connected with the top of the base, and the movable part and the fixed part are in sliding connection with the fixed part in the length direction of the fixed part; the position sensor is arranged in the fixed part and is used for monitoring the position change of the movable part; one end of the connecting rod is connected with one end of the movable part far away from the fixed part, and the other end of the connecting rod is fixedly connected with a rotating central shaft of the main shaft balancing device, so that faults of the main shaft of the rolling mill are monitored, major equipment hidden dangers are found in time, and major equipment loss caused by accidents of the main shaft of the rolling mill is avoided.
Description
Technical Field
The utility model relates to the technical field of equipment in the metallurgical industry, in particular to a fault state on-line monitoring device for rolling mill spindle equipment and the rolling mill spindle equipment.
Background
In the steel industry, rolling mill main transmission equipment frequently bears severe working conditions of larger alternating torque load and impact load in the rolling process, an online working mode of a rolling mill main shaft (a universal joint of a universal joint type rolling mill main shaft, a flat head sleeve, a coupling body of a sliding block type rolling mill main shaft and a rolling mill main shaft body) is reciprocating rolling, and the rolling mill main transmission equipment works above typical alternating stress, and is damaged and destroyed in a fatigue damage mode. For the main shaft of the rolling mill, the spatial position relation is limited by the size of the whole rolling mill equipment, for example, the diameter of the universal joint on the roller side of the main shaft of the rolling mill cannot exceed the minimum diameter of the roller of the rolling mill, otherwise, interference collision can occur when the universal joint on the roller side of the lower main shaft of the upper rolling mill runs. The joint or the like is limited in its fatigue torque due to size limitation. Based on these factors, main transmission shaft damage accidents often occur in various wide and thick plate factories.
Whereas a rolling mill spindle accident is characterized by one damage to the mill spindle often resulting in other damages. Once the broken part of the broken motor side is connected with the main shaft motor of the rolling mill after the broken part is broken, the broken motor side is rotated at high speed, and the broken motor side is collided and extruded with the broken roller side of the main shaft of the rolling mill, so that the balance support frame of the main shaft of the rolling mill is damaged, the support of the shaft head is damaged, and even the broken accident of the flat head part of the working roll is caused after one of the main shafts of the upper rolling mill is broken, the rolling torque is applied to the main shaft of the other rolling mill to cause overload and damage of the main shaft of the other rolling mill in many cases. Therefore, once the main shaft fault of the rolling mill occurs, the main shaft fault is not found in time, and great equipment and production stopping loss are often caused.
The motor current, torque and rotation speed are available real-time on-line monitoring and tracking quantities when the rolling mill main shaft in the industry runs, but the real-time monitoring of the quantities can be used as rough protection conditions for ensuring long-term normal running of the rolling mill main shaft (such as alarming and stopping when the torque is large, but the immediate damage to the rolling mill main shaft can not be caused under the condition of overtorque in a certain range, and the fatigue life of the rolling mill main shaft can be influenced). Because the damage form of the main shaft of the rolling mill is fatigue damage under most conditions, the bearing characteristic parameters such as torque and the like are normal when faults occur, and the fault precursors and the torque and the current equivalent under the fault conditions are unchanged under the fault conditions and the normal conditions of the main shaft of the rolling mill, the main shaft fault detection method cannot be used as the real-time online monitoring characteristic quantity of the main shaft fault of the rolling mill.
Therefore, an effective fault characteristic quantity of the main shaft of the rolling mill is searched, and an effective fault state on-line monitoring device of main shaft equipment of the rolling mill is arranged according to the effective fault characteristic quantity, and when the main shaft of the rolling mill just starts to break down, real-time on-line monitoring alarm and shutdown protection are very necessary.
Disclosure of Invention
The utility model aims to provide a fault state on-line monitoring device for rolling mill spindle equipment and rolling mill spindle equipment, which are used for solving the problems in the prior art, monitoring the faults of the rolling mill spindle, finding out major equipment hidden danger in time and avoiding major equipment loss caused by rolling mill spindle accidents.
In order to achieve the above object, the present utility model provides the following solutions:
the utility model provides an online monitoring device for fault state of rolling mill spindle equipment, comprising: the monitoring device comprises at least one monitoring device body, a rolling mill and a control device, wherein the monitoring device body comprises a base, a telescopic cylinder body, a position sensor and a connecting rod, and the base is fixedly connected with a device foundation of the rolling mill; the telescopic cylinder body comprises a fixed part and a movable part, the fixed part is fixedly connected with the top of the base, and the movable part and the fixed part are in sliding connection with the fixed part in the length direction of the fixed part; the position sensor is arranged in the fixed piece and is used for monitoring the position change of the movable piece; one end of the connecting rod is connected with one end of the movable part, which is far away from the fixed part, and the other end of the connecting rod is fixedly connected with a rotation central shaft of the main shaft balancing device.
Preferably, the number of the monitoring device bodies is two, one monitoring device body is used for being fixedly connected with the rotation center shaft of the upper spindle balancing device, and the other monitoring device body is used for being fixedly connected with the rotation center shaft of the lower spindle balancing device.
Preferably, the base is fixed on the equipment foundation through foundation bolts.
Preferably, the rotary shaft fixing seat is fixedly connected with the top of the base through bolts, and the rotary shaft fixing seat is rotationally connected with the fixing piece.
Preferably, the telescopic cylinder body is manufactured by a standard hydraulic cylinder.
Preferably, the device further comprises a connecting pin shaft, a first pin hole is formed in one end, far away from the fixed part, of the movable part, a second pin hole is formed in one end, far away from a rotation center shaft of the main shaft balancing device, of the connecting rod, and the connecting pin shaft is used for penetrating through the first pin hole and the second pin hole to connect the movable part with the connecting rod.
Preferably, an arc-shaped groove is formed in one end, far away from the movable piece, of the connecting rod, and the diameter of the arc-shaped groove is the same as that of the rotation central shaft of the main shaft balancing device.
Preferably, the position sensor further comprises a control terminal, and the control terminal is in signal connection with the position sensor.
The utility model provides a rolling mill spindle device, comprising: the fault state on-line monitoring device for the main shaft equipment of the rolling mill.
Compared with the prior art, the utility model has the following technical effects:
the utility model provides a fault state on-line monitoring device of a rolling mill spindle device and the rolling mill spindle device, when a rolling mill spindle (such as a universal joint of a universal joint type coupling, a sliding block type coupling body and the like) breaks down, the rolling mill spindle body drives a connecting rod of a vertical balancing device to move up and down, the connecting rod drives a connecting rod bracket of the balancing device to rotate, a connecting rod is additionally arranged on the connecting rod bracket device, the tail end of the connecting rod is connected with a movable part, a position sensor monitors the position change of the movable part, and the central position change of the rolling mill spindle body is monitored.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a fault state on-line monitoring device for a main shaft device of a rolling mill;
FIG. 2 is a schematic view of a rolling mill spindle apparatus according to the present utility model;
in the figure: 1. monitoring a device body; 101. a base; 102. a position sensor; 103. a rotation shaft fixing seat; 104. a telescopic cylinder; 105. a connecting pin shaft; 106. a connecting rod; 2. a balancing device for a lower main shaft of the rolling mill; 3. a main shaft balancing device on the rolling mill; 4. an online monitoring device for the fault state of a main shaft on a rolling mill; 5. a safety coupling at the motor side of the upper working roll; 6. a lower working roll motor side safety coupling; 7. a motor side universal joint of the upper working roller; 8. a lower working roll motor side universal joint; 9. a lower main shaft of the rolling mill; 10. a main shaft on the rolling mill; 11. a roll side universal joint of the upper working roll; 12. a lower work roll side gimbal; 13. a main shaft flat sleeve on the rolling mill; 14. a flat head of an upper working roll; 15. a lower work roll flat head; 16. and a lower working roll flat head sleeve.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model aims to provide a fault state on-line monitoring device for rolling mill spindle equipment and rolling mill spindle equipment, which are used for solving the problems in the prior art, monitoring the faults of the rolling mill spindle, finding out major equipment hidden danger in time and avoiding major equipment loss caused by rolling mill spindle accidents.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
Example 1
The embodiment provides an online monitoring device for fault conditions of a main shaft device of a rolling mill, as shown in fig. 1-2, comprising: the monitoring device comprises at least one monitoring device body 1, wherein the monitoring device body 1 comprises a base 101, a telescopic cylinder 104, a position sensor 102 and a connecting rod 106, and the base 101 is fixedly connected with a device foundation of a rolling mill; the telescopic cylinder 104 comprises a fixed part and a movable part, the fixed part is fixedly connected with the top of the base 101, and the movable part and the fixed part are in sliding connection with the fixed part in the length direction of the fixed part; the position sensor 102 is arranged in the fixed part, and the position sensor 102 is used for monitoring the position change of the movable part; when a rolling mill spindle (such as a universal joint of a universal joint type coupling, a sliding block type coupling body and the like) fails, the rolling mill spindle body drives a connecting rod of the vertical balancing device to move up and down, the connecting rod drives a connecting rod bracket of the balancing device to rotate, the connecting rod 106 is additionally arranged on the connecting rod bracket device, the tail end of the connecting rod 106 is connected with the movable piece, the position sensor 102 monitors the position change of the movable piece, the central position change quantity of the rolling mill spindle body is monitored, the device is used in combination with a real-time monitoring quantity acquisition, calculation and automatic analysis program, the real-time acquisition comparison of the change value of the central position change quantity of the rolling mill spindle caused by the failure of the rolling mill spindle is realized, and if the change value exceeds an alarm value, the failure alarm is given, and if the change value exceeds a shutdown interlocking value, the failure alarm is given. Therefore, the utility model is particularly suitable for the situations that the hydraulic cylinder driven by the original main shaft balancing device of the rolling mill is a tail earring type hydraulic cylinder or the position sensor 102 cannot be installed on the hydraulic cylinder driven by the main shaft balancing device of the rolling mill due to other reasons such as space limitation and the like.
In the preferred scheme of this embodiment, the quantity of monitoring device body 1 is two, and one monitoring device body 1 is used for with last spindle balancing unit's rotation center pin fixed connection, and another monitoring device body 1 is used for with lower spindle balancing unit's rotation center pin fixed connection, simple structure monitors accurately.
In the preferred scheme of the embodiment, the base 101 is fixed on the equipment foundation through foundation bolts, and the structure is simple.
In the preferred scheme of this embodiment, the online monitoring device for fault state of rolling mill spindle equipment further comprises a rotation shaft fixing seat 103, the rotation shaft fixing seat 103 is fixedly connected with the top of the base 101 through bolts, and the rotation shaft fixing seat 103 is rotationally connected with a fixing piece, so that the online monitoring device is simple in structure.
In the preferred scheme of this embodiment, the telescopic cylinder 104 is made of standard hydraulic cylinders, and has simple structure and convenient material drawing.
In the preferred scheme of this embodiment, the online monitoring device for fault conditions of rolling mill spindle equipment further comprises a connecting pin 105, a first pin hole is formed in one end, far away from the fixed part, of the movable part, a second pin hole is formed in one end, far away from the rotation center shaft of the spindle balancing device, of the connecting rod 106, and the connecting pin 105 is used for connecting the movable part with the connecting rod 106 through the first pin hole and the second pin hole, so that the online monitoring device is simple in structure.
In the preferred scheme of this embodiment, the one end that connecting rod 106 kept away from the moving part is provided with the arc recess, and the diameter of arc recess and main shaft balancing unit's rotation center pin is the same, simple structure, convenient fixed.
In the preferred scheme of the embodiment, the online monitoring device for the fault state of the rolling mill spindle equipment further comprises a control terminal, the control terminal is in signal connection with the position sensor 102, the control terminal is in signal connection with the rolling mill spindle equipment, and the control terminal is provided with a real-time monitoring quantity acquisition, calculation and automatic analysis program, so that real-time acquisition and comparison of the change value of the central position change quantity of the rolling mill spindle caused by the rolling mill spindle fault is realized, fault alarm is carried out when the change value exceeds an alarm value, and shutdown interlocking protection is carried out when the change value exceeds a shutdown interlocking value. Thereby realizing real-time on-line fault state monitoring alarm and shutdown protection.
Example two
The utility model provides a rolling mill spindle device, comprising: the rolling mill spindle device fault condition on-line monitoring device, the rolling mill lower spindle balancing device 2, the rolling mill upper spindle balancing device 3, the rolling mill upper spindle fault condition on-line monitoring device 4, the upper work roll motor side safety coupling 5, the lower work roll motor side safety coupling 6, the upper work roll motor side universal joint 7, the lower work roll motor side universal joint 8, the rolling mill lower spindle 9, the rolling mill upper spindle 10, the upper work roll side universal joint 11, the lower work roll side universal joint 12, the rolling mill upper spindle flat head sleeve 13, the upper work roll flat head 14, the lower work roll flat head 15 and the lower work roll flat head sleeve 16 according to any one of the embodiments.
The utility model has the following steps of performing fault alarm or shutdown interlocking protection on the main shaft of the rolling mill in actual use:
when the main shaft of the rolling mill (main shaft body of the rolling mill, universal joints at two ends and flat sleeves at the roller side, as shown by 7-13 and 16 in fig. 2) fails, the position variation of the rotation center of the main shaft of the rolling mill is increased, namely the central position variation of the main shaft of the rolling mill is increased, the balance device when the HGC position is only slightly changed drives the hydraulic cylinder rod to move up and down, the vertical connecting rod support moves to drive the swinging support to rotate relative to the rotation point of the fixed base 101, the connecting rod 106 drives the position sensor 102 to move so as to monitor the position variation of the main shaft of the rolling mill in real time, thereby realizing the real-time monitoring of the faults of the main shaft of the rolling mill, and when the position variation value reflected by the position sensor element is caused by the position variation of EGC (mechanical pressing device) and HGC (hydraulic roll gap adjusting cylinder device) in the rolling process, the balance device when the HGC position is only slightly changed drives the change of the hydraulic cylinder rod, namely the change value of the central position variation of the main shaft of the rolling mill, which truly reflects the main shaft of the rolling mill caused by faults of the main shaft of the rolling mill, and when the change value of the roll is calculated and is not influenced by the factors, the change value of the change of the central position variation of the main shaft of the rolling mill exceeds the fault value, the fault alarm value, and the fault alarm value is stopped and the fault protection is performed after the fault value is exceeded.
The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present utility model; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.
Claims (9)
1. The utility model provides a rolling mill spindle unit fault state on-line monitoring device which characterized in that: comprising the following steps:
the monitoring device comprises at least one monitoring device body, a rolling mill and a control device, wherein the monitoring device body comprises a base, a telescopic cylinder body, a position sensor and a connecting rod, and the base is fixedly connected with a device foundation of the rolling mill; the telescopic cylinder body comprises a fixed part and a movable part, the fixed part is fixedly connected with the top of the base, and the movable part and the fixed part are in sliding connection with the fixed part in the length direction of the fixed part; the position sensor is arranged in the fixed piece and is used for monitoring the position change of the movable piece; one end of the connecting rod is connected with one end of the movable part, which is far away from the fixed part, and the other end of the connecting rod is fixedly connected with a rotation central shaft of the main shaft balancing device.
2. The on-line monitoring device for fault conditions of rolling mill spindle equipment according to claim 1, wherein: the number of the monitoring device bodies is two, one monitoring device body is used for being fixedly connected with the rotating central shaft of the upper spindle balancing device, and the other monitoring device body is used for being fixedly connected with the rotating central shaft of the lower spindle balancing device.
3. The on-line monitoring device for fault conditions of rolling mill spindle equipment according to claim 2, characterized in that: the base is fixed on the equipment foundation through foundation bolts.
4. The on-line monitoring device for fault conditions of rolling mill spindle equipment according to claim 3, wherein: still include the rotation axis fixing base, the rotation axis fixing base pass through the bolt with the top fixed connection of base, the rotation axis fixing base with the mounting rotates to be connected.
5. The online monitoring device for fault conditions of rolling mill spindle equipment according to claim 4, wherein: the telescopic cylinder body is made of a hydraulic cylinder.
6. The on-line monitoring device for fault conditions of rolling mill spindle equipment according to claim 5, wherein: the connecting pin shaft is used for penetrating through the first pin hole and the second pin hole to connect the movable piece with the connecting rod.
7. The on-line monitoring device for fault conditions of rolling mill spindle equipment according to claim 6, wherein: the connecting rod is kept away from the one end of moving part is provided with the arc recess, the arc recess with the diameter of the rotation center pin of main shaft balancing unit is the same.
8. The on-line monitoring device for fault conditions of rolling mill spindle equipment according to claim 1, wherein: the control terminal is in signal connection with the position sensor.
9. A rolling mill spindle apparatus, characterized in that: comprising the following steps: the online monitoring device for fault conditions of rolling mill spindle equipment according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320852881.4U CN220104468U (en) | 2023-04-17 | 2023-04-17 | Rolling mill spindle device fault state on-line monitoring device and rolling mill spindle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320852881.4U CN220104468U (en) | 2023-04-17 | 2023-04-17 | Rolling mill spindle device fault state on-line monitoring device and rolling mill spindle device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220104468U true CN220104468U (en) | 2023-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320852881.4U Active CN220104468U (en) | 2023-04-17 | 2023-04-17 | Rolling mill spindle device fault state on-line monitoring device and rolling mill spindle device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220104468U (en) |
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2023
- 2023-04-17 CN CN202320852881.4U patent/CN220104468U/en active Active
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