CN113522991B - On-line detection device and detection method for bearing seat clearance of rolling mill - Google Patents
On-line detection device and detection method for bearing seat clearance of rolling mill Download PDFInfo
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- CN113522991B CN113522991B CN202110763480.7A CN202110763480A CN113522991B CN 113522991 B CN113522991 B CN 113522991B CN 202110763480 A CN202110763480 A CN 202110763480A CN 113522991 B CN113522991 B CN 113522991B
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- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
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Abstract
The invention provides an online detection device and a detection method for a rolling mill bearing seat gap. In the roll changing process of the rolling mill, when the rolling roll is drawn out, the ball in the detection device is outwards popped up by the acting force of the spring, when the rolling roll is installed, the ball in the detection device is pressed into the detection device by the acting force of the bearing seat wear-resistant lining plate, so that the detection device can work stably on site for a long time and is not influenced by roll shifting and frequent roll changing. In the production process of the rolling mill, the displacement change of the bearing seat in the horizontal direction is transmitted to the spring through the ball and the cambered surface pad, the spring converts the displacement change into the force change, the force is transmitted to the sensor, and the sensor outputs a signal of the real-time force change. Finally, the displacement change of the bearing seat is reflected through the change of the force acquired by the sensor, and the real-time acquisition of the gap information between the bearing seat of the rolling mill and the housing is realized.
Description
Technical Field
The invention relates to the field of automatic measurement of metallurgical mechanical equipment, in particular to an online detection device and a detection method for a gap of a bearing seat of a rolling mill.
Background
The reasonable selection of the gap value between the roller bearing seat and the housing is the premise that the rolling mill can normally produce. If the clearance is too small in a plate strip rolling mill, the roller cannot be installed in the rolling mill, or the roller cannot be drawn out after being installed, so that normal roller replacement is influenced; the horizontal rigidity of the rolling mill can be influenced due to overlarge gaps, so that the rolling mill vibrates, the obvious thickness difference of a strip and light and dark stripes on the surface of the strip are caused, the product quality is influenced, even the strip breakage accident is caused, meanwhile, the abrasion of a roller can be accelerated, and finally, the equipment maintenance, the stable rolling operation and the product quality are all influenced.
The conventional detection of the clearance value can simply measure the width dimension (also called as the opening dimension of the bearing seat) between two lining plate surfaces of the bearing seat by using an outside micrometer or a rectangular gauge, and a 3D laser tracker is generally adopted to obtain the measuring point information of the space geometric elements on site at present. The traditional gap value measurement and control strategy has the following disadvantages: firstly, the width of a bearing seat and the opening degree of a memorial archway are detected regularly, and the real-time performance of gap control cannot be guaranteed; secondly, the establishment of the clearance control standard is mainly based on experience, and the lower limit control of the allowable range of the clearance is larger to avoid the generation of the vibration of the rolling mill when the roller cannot be installed in the rolling mill or cannot be drawn out when the roller is replaced; in addition, in the rolling process, gaps of four positions of the inlet and the outlet of the transmission side and the inlet and the outlet of the operation side of each roller are in dynamic change, and the condition that two ends of each roller respectively deviate to which side or whether the rollers are crossed cannot be observed in real time.
Aiming at the problems, a method for acquiring the clearance between the bearing seat of the rolling mill and the housing in real time is provided, and a sensor is adopted to detect the change of the clearance value on line, so that the method plays a guiding role in clearance control. However, due to the influence of a large amount of cooling water, oil stains, and the like on a rolling site, a working environment is very severe, and conventional detection devices such as a laser displacement sensor, an eddy current displacement sensor, a magnetostrictive displacement sensor, and a pull rope (pull rod) type displacement sensor cannot stably work for a long time. The main structure of the detection device for acquiring the information of the clearance between the mill housing and the bearing seat in real time can work stably for a long time on a rolling site with a severe working environment on the premise of acquiring the information of the clearance between the mill housing and the bearing seat in real time, particularly can avoid the damage of a large amount of cooling water on the site to the sensor, but the sensor needs to be disassembled and assembled when the roll is replaced every time, and the frequent roll replacement of the mill restricts the wide application of the detection device on an industrial site.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide an online detection device and a detection method for the gap between the bearing seats of the rolling mill, which can work stably for a long time in a severe rolling field, monitor the position information of each roller bearing seat on line, do not influence the roll change of the rolling mill, and play a role in guiding the control of the gap between the housing of the rolling mill and the bearing seat; and further has important significance for reducing the vibration of the rolling mill, reducing the abrasion of the roller and improving the product quality.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the detection device is arranged in a mill housing wear-resistant lining plate and comprises a shell, an end cover, a ball, a baffle, an inner sealing ring, an arc-shaped pad, an outer sealing ring, an elastic body and a sensor;
the housing is arranged in a mill housing wear-resistant lining plate, the outer sealing ring is arranged on the housing, the sensor, the spring, the cambered surface pad, the ball, the baffle and the end cover are sequentially arranged in the housing, the cambered surface pad and the baffle are respectively provided with the inner sealing ring, and the sensor is in contact with the bottom surface of an inner hole of the housing; the elastic body is positioned between the sensor and the cambered surface pad and used for converting displacement into force, so that the sensor acquires the change of real-time stress, and the displacement can be reflected; the output end of the sensor is connected with the cable so as to output a real-time force signal; the ball is fixedly connected with the baffle and is positioned on one side of the cambered surface pad; the end cover and the shell are connected with each other, the outer surface of the end cover is lower than the outer end surface of the shell after the end cover is installed, and the outer end surface of the shell is lower than the outer surface of the mill housing wear-resistant lining plate after the shell is installed; in a free state, the side surface of the ball adjacent to the wear-resistant lining plate of the mill housing in the detection device is positioned on the outer side of the outer surface of the wear-resistant lining plate of the mill housing; in the roll changing process of the rolling mill, the ball is popped outwards under the action of the spring, the baffle plate and the end cover play a role in limiting, when the rolling mill is installed, the ball is pressed into the detection device under the action of the wear-resistant lining plate of the roll bearing seat, in the production process of the rolling mill, the horizontal displacement change of the wear-resistant lining plate of the roll bearing seat is transmitted to the spring through the ball and the cambered surface pad, the spring converts the displacement change into the force change, and the sensor outputs a real-time force signal capable of reflecting the displacement;
the roll chock wear-resistant lining plate is provided with a transverse oil groove and a longitudinal oil groove, the distance between two adjacent transverse oil grooves is H, the distance between two adjacent longitudinal oil grooves is V, each rolling mill housing wear-resistant lining plate is provided with four detection devices, and the four detection devices are arranged at the four corners of the wear-resistant lining plate and can be positioned at the corresponding positions of the roll chock wear-resistant lining plate, so that the displacement of the roll chock can be detected; the four detection devices comprise a first detection device, a second detection device, a third detection device and a fourth detection device, the transverse distance between the first detection device and the second detection device and the transverse distance between the third detection device and the fourth detection device are h, and the longitudinal distance is b; the transverse distance between the first detection device and the third detection device, the transverse distance between the second detection device and the fourth detection device are a, the longitudinal distance is V, the transverse distance a and the longitudinal distance b are 30-50mm, the transverse distance H +/-50 mm and the integral multiple of the transverse oil groove spacing H and the longitudinal distance V +/-50 mm and the integral multiple of the longitudinal oil groove spacing V have difference, and therefore the detection position of at most one detection device is located in the oil groove of the wear-resistant lining plate of the roll bearing seat during online detection.
Preferably, a wire casing for leading out a cable is arranged on one side, in contact with the rolling mill housing, of the wear-resistant lining plate of the rolling mill housing.
Preferably, the shell is installed in the mill housing wear-resistant lining plate through the bolt and the elastic washer, the length of the shell is less than 20mm, the outer diameter of the shell is 20-30mm, the inner diameter of the shell is 15-24mm, and two annular grooves for installing the outer sealing ring are formed in the outer surface of the shell.
Preferably, the cambered surface pad and the baffle are respectively provided with an annular groove for mounting the inner sealing ring.
Preferably, the end cap is in threaded connection with the housing.
Preferably, after the cable is led out from the shell, a sealant is coated around the cable in the hole at the bottom of the shell for sealing.
Preferably, the sensor is a piezomagnetic sensor, a piezoelectric sensor or a resistance strain gauge sensor.
Preferably, the elastic body is a spring.
Preferably, the outer surface of the end cover after installation is 0.1-0.3mm lower than the outer end face of the shell; the outer end surface of the shell is 0.2-0.5mm lower than the outer surface of the mill housing wear-resistant lining plate after installation; in a free state, the bottom surface of the ball of the detection device is 2-3mm higher than the outer surface of the wear-resistant lining plate of the mill housing.
Preferably, the invention also provides an online detection method for the gap of the bearing seat of the rolling mill, which comprises the following steps:
s1, respectively installing four detection devices on each mill housing wear-resistant lining plate, and calibrating the four detection devices;
s2, force signals capable of representing displacement are obtained by using sensors of four detection devices, in the production process of a rolling mill, the displacement change of the wear-resistant lining plate of the roller bearing pedestal in the horizontal direction is transmitted to a spring through a ball and a cambered pad, the spring converts the displacement change into the force change, the sensor outputs real-time force signals capable of representing the displacement to an upper computer, and the upper computer converts the force signals into displacement signals;
and S3, in the process of online detection, removing the smallest displacement signal in the four detection devices, carrying out average calculation on the real-time displacement signals of the remaining three detection devices to obtain an average displacement value, and outputting the average displacement value as a detected gap value between the bearing seat of the rolling mill and the housing.
Compared with the prior art, the online detection device for the gap of the bearing seat of the rolling mill has the following beneficial effects:
1. the invention can detect the gap between the mill housing and the bearing seat of the roller on line, realize the real-time acquisition of the gap information between the mill housing and the bearing seat, and play a guiding role in controlling the gap between the mill housing and the bearing seat.
2. The invention can work stably for a long time in a rolling field with severe working environment and is not influenced by roll shifting and frequent roll changing in the field.
3. The invention can detect the dynamic change of each bearing seat position on line, if the roller crossing phenomenon exists, and can guide to make corresponding reasonable adjustment.
4. The invention can acquire the vibration information of the bearing pedestal in the horizontal direction in real time when the rolling mill works, thereby guiding the adjustment of equipment and process.
Drawings
FIG. 1 is a schematic view of the installation position of a detection device in an online detection device for the gap of a rolling mill bearing pedestal according to the invention relative to a rolling mill;
FIG. 2 is an internal cross-sectional view of an on-line detecting device for the gap of a rolling mill bearing seat according to the present invention;
FIG. 3 is a schematic diagram showing the distribution positions of the detection devices on the wear-resistant lining plates of the rolling mill housing in the online detection device for the gap between the bearing seats of the rolling mill according to the invention.
Some of the reference numbers in the figures are as follows:
1-roll chock, 2-roll chock wear-resistant lining plate, 3-rolling mill housing wear-resistant lining plate, 4-detection device, 5-rolling mill housing, 401-shell, 402-end cover, 403-ball, 404-baffle, 405-inner sealing ring, 406-cambered surface pad, 407-outer sealing ring, 408-spring, 409-sensor, 410-cable, 411-bolt and 412-elastic washer.
Detailed Description
Exemplary embodiments, features and aspects of the present invention will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
As shown in fig. 1, the detection device 4 is installed in a mill housing wear-resistant lining plate 3 on a mill housing 5 and is used for detecting a gap between the mill housing wear-resistant lining plate 2 on the mill bearing seat 1 and the mill housing wear-resistant lining plate 3 on the mill housing 5 on line in real time.
As shown in FIG. 2, the online detection device for the rolling mill bearing seat clearance comprises a housing 401, an end cover 402, a ball 403, a baffle 404, an inner sealing ring 405, a cambered surface pad 406, an outer sealing ring 407, a spring 408, a sensor 409, a cable 410, a bolt 411 and an elastic washer 412. The shell 401 is made of stainless steel, the length is less than 20mm, the outer diameter is 20-30mm, the inner diameter is 15-24mm, and the bottom thickness is more than 3 mm. A through hole with the diameter of 2-5mm is machined in the center of the bottom, the through hole is used for leading out the cable 410, the cable 410 is a shielded cable, interference of other factors on an industrial field on a detection signal is avoided, and the through hole and the periphery of the cable 410 are sealed by coating a sealant. Two M2-M3 fine thread threaded holes are processed in the middle of the through hole at the bottom and the edge, the two threaded holes are arranged in a 180-degree mode along the circumferential direction with the axis of the shell 401, and two annular grooves are processed on the outer surface of the shell 401 and used for installing the outer sealing ring 407. The rolling mill housing wear-resistant lining plate 3 is provided with stepped holes, a first stepped hole with a larger diameter is used for mounting a detection device 4, a second stepped hole with a smaller diameter is used for leading out a cable 410, two stepped through holes for mounting bolts 411 and elastic washers 412 are arranged and processed in a 180-degree mode along the circumferential direction by the axis of the stepped holes, two M2-M3 fine-tooth threaded holes are processed between the through hole at the bottom of the shell 401 and the middle of the edge portion in position and size reference mode, and the detection device 4 is mounted in the rolling mill housing wear-resistant lining plate 3 through the bolts 411 and the elastic washers 412. A sensor 409, a spring 408, an arc pad 406, a ball 403, a baffle 404 and an end cover 402 are sequentially arranged in the shell 401, the sensor 409 is in contact with the bottom surface of an inner hole of the shell 401, a detection signal of the sensor 409 is output by a cable 410, the sensor 409 can be a piezomagnetic sensor, a piezoelectric sensor or a resistance strain sensor, and the protection grade is over IP 66. The spring 408 is located between the sensor 409 and the cambered pad 406, and the main function of the spring 408 is to convert displacement into force, so that the sensor 409 acquires the change of the received force, and the displacement is represented. Accordingly, other types of elastomers may be used for spring 408. The ball 403 is fixedly connected with the baffle 404 by bonding or welding, and the cambered pad 406 and the baffle 404 are respectively provided with an annular groove for installing the inner sealing ring 405. The end cover 402 is connected with the shell 401 through threads, the outer surface of the installed end cover 402 is 0.1-0.3mm lower than the outer end surface of the shell, and the outer end surface of the installed shell 401 is 0.2-0.5mm lower than the outer surface of the mill housing wear-resistant lining plate 3; in a free state, the ball 403 in the detection device 4 is 2-3mm higher than the outer surface of the mill housing wear-resistant lining plate 3. The end cap 402, ball 403 and baffle 404 are stainless steel.
As shown in fig. 3, four detection devices 4 are installed on each mill housing wear-resistant lining plate 3, the installation positions are respectively installed at the transverse and longitudinal corners of the mill housing wear-resistant lining plate 3, and in this embodiment, the detection devices 4 are located near 1/4, and it is required to be ensured that the detection devices 4 can be located at the corresponding positions of the mill bearing seat wear-resistant lining plates, so that the displacement of the mill bearing seat wear-resistant lining plates can be measured, a wire groove is machined on one side of the mill housing wear-resistant lining plate 3, which is in contact with the mill housing, for leading out a cable 410, and the detection devices 4 need to be calibrated before being put into use. A transverse oil groove and a longitudinal oil groove are formed in each bearing seat wear-resistant lining plate, the distance between every two adjacent transverse oil grooves is H, the distance between every two adjacent longitudinal oil grooves is V, four detection devices are installed on each rolling mill housing wear-resistant lining plate, and the installation positions of the four detection devices are respectively located nearby the positions 1/4, transversely and longitudinally, of the wear-resistant lining plate; the four detection devices comprise a first detection device, a second detection device, a third detection device and a fourth detection device, the transverse distance between the first detection device and the second detection device and the transverse distance between the third detection device and the fourth detection device are h, and the longitudinal distance is b; the transverse distance between the first detection device and the third detection device, the transverse distance between the second detection device and the fourth detection device are a, the longitudinal distance is V, the transverse distance a and the longitudinal distance b are 30-50mm, the transverse distance H +/-50 mm and the integral multiple of the transverse oil groove spacing H and the longitudinal distance V +/-50 mm and the integral multiple of the longitudinal oil groove spacing V have difference, and therefore the detection position of at most one detection device is located in the oil groove of the wear-resistant lining plate of the roll bearing seat during online detection.
In the on-line detection process, the minimum signal in the four detection devices 4 is removed, the average value of the other three real-time detection signals is taken, and the average value is the gap value between the detected roll bearing seat wear-resistant lining plate 2 and the rolling mill housing wear-resistant lining plate 3, so that the measurement error caused when a certain detection device 4 is positioned in the oil groove of the roll bearing seat wear-resistant lining plate 2 is eliminated.
In the roll changing process of the rolling mill, when the rolling mill is drawn out, the ball 403 in the detection device 4 is popped outwards under the action of the spring 408, and the baffle 404 and the end cover 402 jointly play a limiting role; when the roll is installed, the ball 403 in the detection device 4 is pressed into the detection device 4 by the acting force of the roll bearing seat wear-resistant lining plate 2, and due to the combined action of the arc surface of the ball 403 and the chamfer angle of the roll bearing seat wear-resistant lining plate, the roll changing process cannot cause great impact on the detection device 4, so that the detection device 4 can work stably on site for a long time and is not influenced by frequent roll changing of a rolling mill. In the production process of the rolling mill, the horizontal displacement change of the wear-resistant lining plate 2 of the roll chock is transmitted to the spring 408 through the ball 403 and the cambered surface pad 406, the spring 408 converts the displacement change into the force change, the force is transmitted to the sensor 409, and the sensor 409 outputs a signal of the real-time force change. Finally, the displacement change of the wear-resistant lining plate 2 of the roller bearing seat is reflected by the change of the force acquired by the sensor 409, so that the real-time acquisition of the gap information between the roller bearing seat and the housing is realized.
The online detection method for the bearing seat clearance of the rolling mill is further explained below, and specifically comprises the following steps:
s1, respectively installing four detection devices on each mill housing wear-resistant lining plate, and calibrating the four detection devices;
s2, force signals capable of representing displacement are obtained by using sensors of four detection devices, in the production process of a rolling mill, the horizontal displacement change of the wear-resistant lining plate of the roll bearing block is transmitted to a spring through a ball and an arc pad, the spring converts the displacement change into force change, the sensor outputs real-time force signals capable of representing displacement to an upper computer, and the upper computer converts the force signals into displacement signals;
and S3, in the process of online detection, removing the smallest displacement signal in the four detection devices, carrying out average calculation on the real-time displacement signals of the remaining three detection devices to obtain an average displacement value, and outputting the average displacement value as a detected gap value between the bearing seat of the rolling mill and the housing.
Finally, it should be noted that: the above-mentioned embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a rolling mill bearing frame clearance on-line measuring device which characterized in that: the detection device is arranged in the mill housing wear-resistant lining plate and comprises a shell, an end cover, a ball, a baffle, an inner sealing ring, an arc-shaped pad, an outer sealing ring, an elastic body and a sensor;
the housing is arranged in a mill housing wear-resistant lining plate, the outer sealing ring is arranged on the housing, the sensor, the elastomer, the cambered surface pad, the ball, the baffle and the end cover are sequentially arranged in the housing, the cambered surface pad and the baffle are respectively provided with the inner sealing ring, and the sensor is in contact with the bottom surface of an inner hole of the housing; the elastic body is positioned between the sensor and the cambered surface pad and used for converting displacement into force, so that the sensor collects the change of real-time stress, and a real-time force signal reflecting the displacement can be output; the output end of the sensor is connected with a cable so as to output a real-time force signal; the ball is fixedly connected with the baffle and is positioned on one side of the cambered surface pad; the end cover and the shell are connected with each other, the outer surface of the end cover is lower than the outer end surface of the shell after the end cover is installed, and the outer end surface of the shell is lower than the outer surface of the mill housing wear-resistant lining plate after the shell is installed; in a free state, the side surface of the ball adjacent to the wear-resistant lining plate of the mill housing in the detection device is positioned on the outer side of the outer surface of the wear-resistant lining plate of the mill housing; in the roll changing process of the rolling mill, the balls are popped outwards under the acting force of the elastic body, the baffle plate and the end cover jointly play a limiting role, when the rolling mill is installed, the balls are pressed into the detection device under the acting force of the wear-resistant lining plate of the roll bearing pedestal, in the production process of the rolling mill, the horizontal displacement change of the wear-resistant lining plate of the roll bearing pedestal is transmitted to the elastic body through the balls and the cambered surface pad, the elastic body converts the displacement change into the force change, and the sensor outputs a real-time force signal capable of reflecting the displacement;
the roll chock wear-resistant lining plate is provided with a transverse oil groove and a longitudinal oil groove, the distance between two adjacent transverse oil grooves is H, the distance between two adjacent longitudinal oil grooves is V, each rolling mill housing wear-resistant lining plate is provided with four detection devices, and the four detection devices are arranged at the four corners of the wear-resistant lining plate and can be positioned at the corresponding positions of the roll chock wear-resistant lining plate, so that the displacement of the roll chock can be detected; the four detection devices comprise a first detection device, a second detection device, a third detection device and a fourth detection device, the transverse distance between the first detection device and the second detection device and the transverse distance between the third detection device and the fourth detection device are h, and the longitudinal distance is b; the transverse distance between the first detection device and the third detection device, the transverse distance between the second detection device and the fourth detection device are a, the longitudinal distance is V, the transverse distance a and the longitudinal distance b are 30-50mm, the transverse distance H +/-50 mm and the integral multiple of the transverse oil groove spacing H and the longitudinal distance V +/-50 mm and the integral multiple of the longitudinal oil groove spacing V have difference, and therefore the detection position of at most one detection device is located in the oil groove of the wear-resistant lining plate of the roll bearing seat during online detection.
2. The rolling mill bearing seat gap on-line detection device of claim 1, characterized in that: and a wire casing for leading out a cable is arranged on one side of the wear-resistant lining plate of the rolling mill housing, which is in contact with the rolling mill housing.
3. The rolling mill bearing seat gap on-line detection device of claim 1, characterized in that: the housing is arranged in the mill housing wear-resistant lining plate through bolts and elastic washers, the length of the housing is less than 20mm, the outer diameter of the housing is 20-30mm, the inner diameter of the housing is 15-24mm, and two annular grooves for mounting the outer sealing ring are formed in the outer surface of the housing.
4. The rolling mill bearing seat gap on-line detection device of claim 1, characterized in that: the cambered surface pad and the baffle are respectively provided with an annular groove for installing the inner sealing ring.
5. The rolling mill bearing seat gap on-line detection device of claim 1, characterized in that: the end cover is in threaded connection with the shell.
6. The rolling mill bearing seat gap on-line detection device of claim 1, characterized in that: and after the cable is led out from the shell, sealing glue is coated around the cable in the hole at the bottom of the shell for sealing.
7. The rolling mill bearing seat gap on-line detection device of claim 1, characterized in that: the sensor is a piezomagnetic sensor, a piezoelectric sensor or a resistance strain type sensor.
8. The rolling mill bearing seat gap on-line detection device of claim 1, characterized in that: the elastic body is a spring.
9. The rolling mill bearing seat gap on-line detection device of claim 1, characterized in that: the outer surface of the end cover is 0.1-0.3mm lower than the outer end face of the shell after installation; the outer end surface of the shell is 0.2-0.5mm lower than the outer surface of the mill housing wear-resistant lining plate after installation; in a free state, the bottom surface of the ball of the detection device is 2-3mm higher than the outer surface of the wear-resistant lining plate of the mill housing.
10. The method for detecting the gap between the bearing seats of the rolling mill on line based on the device for detecting the gap between the bearing seats of the rolling mill of claim 1 is characterized in that: which comprises the following steps:
s1, respectively installing four detection devices on each mill housing wear-resistant lining plate, and calibrating the four detection devices;
s2, force signals capable of representing displacement are obtained by using sensors of four detection devices, in the production process of a rolling mill, the horizontal displacement change of the wear-resistant lining plate of the roll bearing block is transmitted to an elastic body through a ball and an arc pad, the elastic body converts the displacement change into force change, the sensors output real-time force signals capable of representing displacement to an upper computer, and the upper computer converts the force signals into displacement signals;
and S3, in the process of online detection, removing the smallest displacement signal in the four detection devices, carrying out average calculation on the real-time displacement signals of the remaining three detection devices to obtain an average displacement value, and outputting the average displacement value as a detected gap value between the bearing seat of the rolling mill and the housing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110763480.7A CN113522991B (en) | 2021-07-06 | 2021-07-06 | On-line detection device and detection method for bearing seat clearance of rolling mill |
| JP2022109180A JP7118487B1 (en) | 2021-07-06 | 2022-07-06 | ON-LINE DETECTION APPARATUS AND DETECTION METHOD FOR ROLLING MILL CHOK CLEARANCE |
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| CN202110763480.7A CN113522991B (en) | 2021-07-06 | 2021-07-06 | On-line detection device and detection method for bearing seat clearance of rolling mill |
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| CN113522991A CN113522991A (en) | 2021-10-22 |
| CN113522991B true CN113522991B (en) | 2022-07-19 |
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| JP6611219B2 (en) * | 2019-02-01 | 2019-11-27 | Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ株式会社 | Rolling mill and adjusting method of rolling mill |
| CN210497663U (en) * | 2019-08-10 | 2020-05-12 | 无锡新宝重工科技有限公司 | Rolling mill bearing seat with automatic alarm function |
| CN110639964B (en) * | 2019-09-12 | 2020-10-09 | 燕山大学 | Detection element main body structure for acquiring gap information between rolling mill housing and bearing seat in real time |
| CN112097611B (en) * | 2020-09-21 | 2021-11-19 | 湖南铁道职业技术学院 | Device and method for measuring perpendicularity error of inner ring and outer ring of rolling bearing |
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2021
- 2021-07-06 CN CN202110763480.7A patent/CN113522991B/en active Active
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2022
- 2022-07-06 JP JP2022109180A patent/JP7118487B1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP7118487B1 (en) | 2022-08-16 |
| JP2023009031A (en) | 2023-01-19 |
| CN113522991A (en) | 2021-10-22 |
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