CN114289518A - Automatic roller neck position adjusting device based on bearing lubricating oil pressure - Google Patents
Automatic roller neck position adjusting device based on bearing lubricating oil pressure Download PDFInfo
- Publication number
- CN114289518A CN114289518A CN202111631514.3A CN202111631514A CN114289518A CN 114289518 A CN114289518 A CN 114289518A CN 202111631514 A CN202111631514 A CN 202111631514A CN 114289518 A CN114289518 A CN 114289518A
- Authority
- CN
- China
- Prior art keywords
- oil
- bearing
- lubricating oil
- pressure
- roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention relates to a roller neck position automatic regulating device based on bearing lubricating oil pressure, which comprises two rolling mills, a rolling force measuring device, a roller rotating speed/steering measuring device, a lubricating oil supply system and a control system, wherein the two rolling mills are connected with the lubricating oil supply system through a pipeline; the two-roller mill comprises a frame, an upper roller, a lower roller, an oil film bearing mechanism and a base; providing mounting and supporting positions for a rolling force measuring device, a roller rotating speed/steering measuring device and a lubricating oil supply system; the invention has compact structure, easy disassembly and assembly, convenient maintenance and protection, can accurately measure signals such as rolling force, roller rotating speed, steering and the like in real time, establishes normal thickness of a bearing oil film by controlling the pressure of lubricating oil in a bearing oil cavity, realizes automatic adjustment of the position of a roller neck, ensures that the center distance of the roller does not deviate greatly under different working conditions, improves the rolling precision of products, and has important significance for practical production.
Description
Technical Field
The invention belongs to the technical field of rolling mill part lubrication in a rolling process, and particularly relates to a device for automatically adjusting the position of a roll neck of a roll based on the pressure of bearing lubricating oil.
Background
The oil film bearing of the rolling mill is a radial sliding bearing applied to metallurgical steel rolling equipment and is a core component of the rolling mill. No matter new equipment or old rolling production line transformation is carried out, steel enterprises hope to equip a rolling mill with a strong and powerful 'heart' -oil film bearing. The thickness of the oil film bearing is highly related to the rolling force and the rolling speed, under the condition that the rolling force is not changed, the thickness of the oil film is thickened when the rotating speed of the roller is increased, and the thickness of the oil film is thinned when the rotating speed is reduced; under the condition that the rolling force is not changed, the thickness of the oil film is thinned when the rolling force is increased, and the thickness of the oil film is thickened when the rolling force is reduced; when the oil film thickness of the oil film bearing is too thick and too thin, the rolling mill can be failed. The current mainstream oil film bearing comprises a dynamic pressure bearing and a static pressure bearing, wherein the dynamic pressure bearing is a sliding bearing lubricated by liquid dynamic pressure, three friction states of liquid friction, incomplete liquid friction and dry friction exist between the lubricated surfaces along with the change of the dynamic pressure condition, and the liquid friction is an ideal working state; however, under the conditions of low speed and heavy load, frequent starting, braking and reversible rolling of the rolling mill, the relative sliding speed of two working interfaces of the dynamic pressure bearing separated by the oil film is very low, even zero, and a liquid friction state is not easy to form, so that the heavy condition causes the damage of the bearing. The hydrostatic bearing is characterized in that an external oil supply device conveys lubricating oil with sufficient pressure into the bearing to form a bearing oil film, and two working interfaces which slide relatively are completely separated to ensure that the hydrostatic bearing is in a complete liquid friction state; however, the hydrostatic bearing cannot adjust the lubricating oil supply pressure in real time according to the changes of the rolling speed and the rolling force, and when the roller is in heavy load starting or high-speed operation, the roller neck is greatly deviated in the stress direction, so that the thickness deviation of a rolled piece caused by the change of a rolling gap is caused. Therefore, in order to prolong the service life of the rolling mill and improve the quality of rolled products, the device which can effectively adjust the position of the roll neck in real time according to the running condition of the roll and provide complete liquid friction has important significance for actual production.
In view of the above technical problems, improvements are needed.
Disclosure of Invention
The invention aims to provide a device for automatically adjusting the position of a roll neck of a roll based on the pressure of bearing lubricating oil, which has the advantages of reasonable and compact structure, easy assembly and disassembly, convenient maintenance, capability of accurately measuring the rolling force, the rotating speed and the steering direction in real time, formation of a proper oil film thickness by controlling the pressure of the lubricating oil in an oil cavity of an oil film bearing, realization of automatic adjustment of the position of the roll neck, guarantee of no large deviation of the center distance of the roll under different working conditions and improvement of the rolling precision of a product.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: the automatic roll neck position adjusting device based on the bearing lubricating oil pressure comprises a two-roll mill, a rolling force measuring device, a roll rotating speed/steering measuring device, a lubricating oil supply system and a control system; the two-roller mill comprises a frame, an upper roller, a lower roller, an oil film bearing mechanism and a base; and mounting and supporting positions are provided for the rolling force measuring device, the roller rotating speed/steering measuring device and the lubricating oil supply system.
As a preferred embodiment of the present invention; the oil film bearing mechanism comprises an upper oil film bearing and a lower oil film bearing; the roll necks at the two ends of the upper roll are connected with the machine frame bearing blocks at the two sides through the upper oiling film bearing; roll necks at two ends of the lower roll are connected with the machine frame bearing blocks at two sides through lower oil film bearings; the machine frames on the two sides are respectively connected with the bases on the corresponding two sides.
As a preferred embodiment of the present invention; the oiling film bearing comprises a bearing seat, a bearing bush, a roller neck, a sealing element, a sealing ring, a first thrust block, a second thrust block, a fixed block, a box cover assembly and a nut; the first thrust block, the second thrust block, the sealing ring, the bearing bush and the sealing element are coaxially connected, good sealing performance is guaranteed, and an oil film bearing oil cavity is formed.
As a preferred embodiment of the present invention; the oil chamber comprises a main oil chamber, an auxiliary oil chamber, a first side oil chamber and a second side oil chamber; the end face of the roll journal is provided with threads which are assembled with a nut to play a role in fixing the first thrust block and the second thrust block and limit the positions of the first thrust block and the second thrust block to ensure that the roll does not axially move; the box cover assembly and the sealing element are connected with the bearing seat, so that the protective effect is achieved, a closed space is provided for the oil cavity, and the effects of sealing water and oil are achieved.
As a preferred embodiment of the present invention; and oil duct devices are arranged in the bearing bush and the bearing seat, and lubricating oil enters and exits each oil cavity through the oil duct devices, so that the pressure of the lubricating oil is changed, and a proper oil film thickness is established in the bearing.
As a preferred embodiment of the present invention; the rolling force measuring device is mainly used for collecting the rolling force through a pressure sensor arranged between a bearing seat of an upper roller and a lower beam of a rack housing and transmitting the collected rolling force data to a control system.
As a preferred embodiment of the present invention; the roller rotating speed/steering measuring device indirectly acquires the rotating speed and rotating direction signals of the roller through a rotating speed sensor and a steering sensor which are arranged on a transmission shaft, and is arranged on the transmission shaft and is not influenced by the vibration of the roller.
As a preferred embodiment of the present invention; the lubricating oil supply system comprises a booster oil pump, a pressure control valve device, an electromagnetic overflow valve, an oil tank, an oil pipe, a strainer, a filter and an oil duct device, when lubricating oil needs to be supplied, the booster oil pump sucks the lubricating oil in the oil tank, the lubricating oil is subjected to primary filtration through the strainer to filter coarse particle impurities such as metal chips and dust and oil sludge, the lubricating oil is subjected to secondary filtration through the filter in the oil pipe to filter turbid liquid such as oil and water, the clean lubricating oil flows through the pressure control valve device after being subjected to secondary filtration and enters oil cavities of an upper oil film bearing and a lower oil film bearing through the oil duct device, and high-pressure clean lubricating oil forms lubricating oil films in a main oil cavity, an auxiliary oil cavity, a first side oil cavity and a second side oil cavity respectively; the lubricating oil which does not flow into the pressure control valve flows back to the oil tank through the electromagnetic overflow valve, and can also receive a control signal from a control system to change the pressure of the lubricating oil in each oil cavity by coordinating the working modes of components such as a booster oil pump, a pressure control valve device, the electromagnetic overflow valve and the like.
As a preferred embodiment of the present invention; the pressure control valve device comprises a first pressure control valve, a second pressure control valve, a third pressure control valve and a fourth pressure control valve; the oil passage arrangement includes a first oil passage, a second oil passage, a third oil passage, and a fourth oil passage.
As a preferred embodiment of the present invention; the control system comprises a control module, a sensor and an actuator; the sensors comprise a pressure sensor, a rotating speed sensor and a steering sensor; the actuator comprises a booster oil pump, a pressure control valve device and an electromagnetic overflow valve; the control module receives a roller rolling force p signal transmitted by the rolling force measuring device in real time, and a roller rotating speed v and a rotating direction signal transmitted by the roller rotating speed/steering measuring device, analyzes, processes and calculates through the control module, and utilizes a Reynolds-cjh oil film thickness compensation principle:
in the formula, a, b and c are constants and can be obtained by the regression of the field measured data according to the debugging of the rolling process, P0Zero rolling force, v, as a reference0Is the reference rotation speed.
The invention has the beneficial effects that: the automatic adjusting device for the position of the roll neck of the roll based on the pressure of the bearing lubricating oil has the advantages of compact structure, easiness in assembly and disassembly, convenience in maintenance and maintenance, capability of accurately measuring signals such as the rolling force, the rotating speed and the steering of the roll in real time, establishment of normal thickness of a bearing oil film by controlling the pressure of the lubricating oil in a bearing oil cavity, realization of automatic adjustment of the position of the roll neck of the roll, guarantee of no large deviation of the center distance of the roll under different working conditions, improvement of the rolling precision of a product and great significance for practical production.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the automatic adjusting device for the position of the roll neck of the roller based on the pressure of bearing lubricating oil according to the invention;
FIG. 2 is a schematic view of an oil film bearing configuration according to an embodiment of the present invention;
FIG. 3 is a partial sectional view of a rolling force measuring apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a device for measuring the rotational speed/direction of a roll according to an embodiment of the present invention
FIG. 5 is a schematic diagram of the operation of a lubrication oil supply system according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a control system according to an embodiment of the present invention.
Reference numbers in the figures: the device comprises a frame 1, an upper oil film bearing 2-1, a lower oil film bearing 2-2, a base 3, a lower roller 4, an upper roller 5, a bearing seat 6, a first oil duct 7-1, a second oil duct 7-2, a third oil duct 7-3, a fourth oil duct 7-4, a bearing bush 8, a sealing element 9, a roller neck 10, an oil film 11, a first thrust block 12-1, a second thrust block 12-2, a fixed block 13, a nut 14, a box cover assembly 15, a sealing ring 16, a pressure sensor 17, a memorial archway lower beam 18, a transmission shaft 19, a rotating speed sensor 20-1, a steering sensor 20-2, an oil pipe 21, a first side oil cavity 22-1, a second side oil cavity 22-2, an auxiliary oil cavity 23, a main oil cavity 24, a first pressure control valve 25-1, a second pressure control valve 25-2 and a third pressure control valve 25-3, the fourth pressure control valve 25-4, the electromagnetic overflow valve 26, the filter 27, the booster oil pump 28, the strainer 29, the oil tank 30, the control module 31, the pressure sensor 32, the rotation speed sensor 33 and the steering sensor 34.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in fig. 1, the present embodiment mainly includes a two-roll mill, a rolling force measuring device, a roll rotation speed/direction measuring device, a lubricating oil supply system, a control system, and the like; to better illustrate the embodiments of the present invention, a two roll mill is used as an engineering background. The two-roller rolling mill comprises a frame 1, an upper roller 5, a lower roller 4, an upper oil film bearing 2-1, a lower oil film bearing 2-2, a base 3 and the like, and also provides installation and support positions for a rolling force measuring device, a roller rotating speed/steering measuring device and a lubricating oil supply system. Roll necks 10 at two ends of the upper roll 5 are respectively connected with the machine frame bearing blocks at two sides through an upper oil film bearing 2-1; roll necks at two ends of the lower roll 4 are respectively connected with the machine frame bearing blocks at two sides through lower oil film bearings 2-2; the machine frames on the two sides are respectively connected with the bases 3 on the corresponding two sides.
As shown in fig. 2 and 5, the upper oil film bearing 2-1 comprises a bearing seat 6, a bearing bush 8, a roller neck 10, a sealing element 9, a sealing ring 16, a first thrust block 12-1, a second thrust block 12-2, a fixed block 13, a box cover assembly 15, a nut 14 and other components, wherein the first thrust block 12-1, the second thrust block 12-2, the seal 16, the bearing bush 8 and the sealing element 9 are coaxially connected to ensure good sealing performance, and an oil film bearing oil cavity is formed, and comprises a main oil cavity 24, an auxiliary oil cavity 23, a first side oil cavity 22-1 and a second side oil cavity 22-2, and a proper oil film 11 is established in each internal oil cavity; the box cover assembly 15 and the sealing element 9 are connected with the bearing seat 6, have a protection effect, provide a closed space for an oil cavity, and also have the functions of sealing water and oil.
As shown in figure 3, the rolling force measuring device directly collects the rolling force mainly through a pressure sensor 17 arranged between an upper roll chock 6 and a lower beam 18 of a rack housing, and transmits the collected rolling force data to a control system, wherein the pressure sensor 17 is not affected by torque, the sensor does not need to be disassembled when the roll is changed, and the installation area is large.
As shown in fig. 4, the roll rotation speed/direction measuring apparatus indirectly collects the rotation speed and direction of the roll mainly by the rotation speed sensor 20-1 and the direction sensor 20-2 installed at the transmission shaft 19 and transmits the collected roll rotation speed and direction signals to the control system, where the rotation speed sensor 20-1 and the direction sensor 20-2 are installed without being affected by the vibration of the roll.
As shown in fig. 5, the lubricating oil supply system includes a booster oil pump 28, a pressure control valve device including a first pressure control valve 25-1, a second pressure control valve 25-2, a third pressure control valve 25-3 and a fourth pressure control valve 25-4, an electromagnetic spill valve 26, an oil tank 30, an oil pipe 21, a strainer 29, a filter 27, an oil passage device, and the like; the oil duct device comprises a first oil duct 7-1, a second oil duct 7-2, a third oil duct 7-3 and a fourth oil duct 7-4; the first oil duct 7-1, the main oil chamber 24 and the fourth pressure control valve 25-4 are connected with the oil pipe 21 to form a main oil chamber 24 oil supply path, the second oil duct 7-2, the first side oil chamber 22-1 and the third pressure control valve 25-3 are connected with the oil pipe 21 to form a first side oil chamber 22-1 oil supply path, the third oil duct 7-3, the auxiliary oil chamber 23 and the second pressure control valve 25-2 are connected with the oil pipe 21 to form an auxiliary oil chamber 23 oil supply path, and the fourth oil duct 7-4, the second side oil chamber 22-2 and the first pressure control valve 25-1 are connected with the oil pipe 21 to form a second side oil chamber 22-2 oil supply path; when lubricating oil needs to be supplied, the booster oil pump 28 pumps the lubricating oil in the oil tank, the lubricating oil is subjected to first filtration through the strainer 29 to filter out coarse particle impurities such as metal chips and dust and oil sludge, the lubricating oil is subjected to second filtration through the filter 27 in the oil pipe 21 to filter out turbid liquid such as oil and water, the clean lubricating oil after the two filtration respectively flows through the first pressure control valve 25-1, the second pressure control valve 25-2, the third pressure control valve 25-3 and the fourth pressure control valve 25-4 and enters the upper oil film bearing 2-1 and the lower oil film bearing 2-2 through the first oil duct 7-1, the second oil duct 7-2, the third oil duct 7-3 and the fourth oil duct 7-4, the high-pressure clean lubricating oil respectively flows in the main oil chamber 24, the auxiliary oil chamber 23 and the first side oil chamber 22-1, an oil film 11 is formed in the second side oil cavity 22-2, lubricating oil which does not flow into the pressure control valve flows back to an oil tank 30 through an electromagnetic overflow valve 26, and control signals from a control system can be quickly received, working modes of a booster oil pump 28, the first pressure control valve 25-1, the second pressure control valve 25-2, the third pressure control valve 25-3, the fourth pressure control valve 25-4, the electromagnetic overflow valve 26 and the like are accurately coordinated in time, lubricating oil pressure in each oil cavity of the bearing is changed, and a proper oil film thickness of the oil film bearing is established.
As shown in fig. 5 and 6, the control system comprises a control module, sensors and actuators, wherein the sensors comprise a pressure sensor 17, a rotating speed sensor 20-1 and a steering sensor 20-2, and the actuators comprise a first pressure control valve 25-1, a second pressure control valve 25-2, a third pressure control valve 25-3 and a fourth pressure control valve 25-4, an electromagnetic overflow valve 26 and a booster oil pump 28; the control module receives a roller rolling force p signal transmitted by the rolling force measuring device in real time, and a roller rotating speed v and a rotating direction signal transmitted by the roller rotating speed/steering measuring device, analyzes, processes and calculates through the control module, and utilizes a Reynolds-cjh oil film thickness compensation principle:
in the formula, a, b and c are constants and can be obtained by the regression of the field measured data according to the debugging of the rolling process, P0Zero rolling force, v, as a reference0Is the reference rotation speed. The working modes of a booster pump 28, a first pressure control valve 25-1, a second pressure control valve 25-2, a third pressure control valve 25-3, a fourth pressure control valve 25-4 and an electromagnetic overflow valve 26 are accurately controlled in real time, the main oil cavity 24, the auxiliary oil cavity 23, the first side oil cavity 22-1 and the second side oil cavity 22-2 of the oil film bearing 2-2 under different working conditions of the roller are guaranteed to reach reasonable lubricating oil pressure, the oil film thickness compensation in the whole process is carried out, an oil film 11 with proper thickness is built, a normal oil film bearing is formed, the roller neck 10 always floats in the center, the upper roller 5 and a bearing bush 8 are guaranteed to be concentric constantly, and the automatic adjustment of the position of the roller neck is achieved. The automatic adjustment working principle of the positions of the roll necks of the upper roll and the lower roll is consistent.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the reference numerals in the figures are used more here: the device comprises a frame 1, an upper oil film bearing 2-1, a lower oil film bearing 2-1, a base 3, a lower roller 4, an upper roller 5, a bearing seat 6, a first oil duct 7-1, a second oil duct 7-2, a third oil duct 7-3, a fourth oil duct 7-4, a bearing bush 8, a sealing element 9, a roller neck 10, an oil film 11, a first thrust block 12-1, a second thrust block 12-2, a fixed block 13, a nut 14, a box cover assembly 15, a sealing ring 16, a pressure sensor 17, a memorial archway lower beam 18, a transmission shaft 19, a rotating speed sensor 20-1, a steering sensor 20-2, an oil pipe 21, a first side oil cavity 22-1, a second side oil cavity 22-2, an auxiliary oil cavity 23, a main oil cavity 24, a first pressure control valve 25-1, a second pressure control valve 25-2 and a third pressure control valve 25-3, fourth pressure control valve 25-4, electromagnetic spill valve 26, filter 27, booster oil pump 28, strainer 29, oil tank 30, control module 31, pressure sensor 32, speed sensor 33, steering sensor 34, etc., but the use of other terms is not precluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (10)
1. Roller journal position automatic regulating apparatus based on bearing lubricating oil pressure, its characterized in that: the device comprises a two-roller mill, a rolling force measuring device, a roller rotating speed/steering measuring device, a lubricating oil supply system and a control system; the two-roller mill comprises a frame (1), an upper roller (4), a lower roller (5), an oil film bearing mechanism and a base (3); and mounting and supporting positions are provided for the rolling force measuring device, the roller rotating speed/steering measuring device and the lubricating oil supply system.
2. The automatic adjusting device for roll neck position based on bearing lubricating oil pressure of claim 1, characterized in that: the oil film bearing mechanism comprises an upper oil film bearing (2-1) and a lower oil film bearing (2-2); roll necks (10) at two ends of the upper roll (4) are connected with machine frame bearing blocks at two sides through an upper oiling film bearing (2-1); roll necks (10) at two ends of the lower roll (5) are connected with machine frame bearing seats at two sides through lower oil film bearings (2-2); the machine frames (1) on the two sides are respectively connected with the bases (3) on the corresponding two sides.
3. The automatic bearing oil pressure-based roll neck position adjustment device according to claim 2, characterized in that: the oiling film bearing (2-1) comprises a bearing seat (6), a bearing bushing (8), a roller neck (10), a sealing element (9), a sealing ring (16), a first thrust block (12-1), a second thrust block (12-2), a fixing block (13), a box cover assembly (15) and a nut (14); the first thrust block (12-1), the second thrust block (12-2), the sealing ring (16), the bearing bush (8) and the sealing element (9) are coaxially connected, good sealing performance is guaranteed, and an oil film bearing oil cavity is formed.
4. The automatic adjusting device for roll neck position based on bearing lubricating oil pressure of claim 3, characterized in that: the oil chamber comprises a main oil chamber (24), an auxiliary oil chamber (23), a first side oil chamber (22-1) and a second side oil chamber (22-2); the end face of the roll journal is provided with threads which are assembled with a nut to fix the first thrust block (12-1) and the second thrust block (12-2) and limit the positions of the first thrust block (12-1) and the second thrust block (12-2) to ensure that the roll does not axially move; the box cover assembly (15) and the sealing element (9) are connected with the bearing seat (6) to play a role in protection, provide a closed space for the oil cavity and play a role in sealing water and oil.
5. The automatic adjusting device for roll neck position based on bearing lubricating oil pressure of claim 4, characterized in that: oil duct devices are arranged in the bearing bush (8) and the bearing seat (6), and lubricating oil enters and exits each oil cavity through the oil duct devices, so that the pressure of the lubricating oil is changed, and a proper oil film thickness is established in the bearing.
6. The automatic adjusting device for roll neck position based on bearing lubricating oil pressure of claim 1, characterized in that: the rolling force measuring device mainly collects rolling force through a pressure sensor (17) arranged between a bearing seat (6) of an upper roller (4) and a lower beam (18) of a rack housing, and transmits collected rolling force data to a control system.
7. The automatic adjusting device for roll neck position based on bearing lubricating oil pressure of claim 1, characterized in that: the roller rotating speed/steering measuring device indirectly acquires the rotating speed and rotating direction signals of the roller through a rotating speed sensor (20-1) and a steering sensor (20-2) which are arranged on a transmission shaft (19), and is arranged on the transmission shaft and is not influenced by the vibration of the roller.
8. The automatic adjusting device for roll neck position based on bearing lubricating oil pressure of claim 1, characterized in that: the lubricating oil supply system comprises a booster oil pump (28), a pressure control valve device, an electromagnetic overflow valve (26), an oil tank (30), an oil pipe (21), a filter (29), a filter (27) and an oil duct device, when lubricating oil needs to be supplied, the booster oil pump (28) sucks the lubricating oil in the oil tank (30), the lubricating oil is filtered for the first time through the filter (29), coarse particle impurities such as metal chips and dust and oil sludge are filtered out, the lubricating oil is filtered for the second time through the filter (27) in the oil pipe (21), turbid liquid such as oil and water is filtered, after twice filtering, clean lubricating oil flows through the pressure control valve device and enters oil chambers of an upper oil film bearing (2-1) and a lower oil film bearing (2-2) through the oil duct device, and high-pressure clean lubricating oil forms a lubricating oil film (11) in a main oil chamber (24), an auxiliary oil chamber (23), a first side oil chamber (22-1) and a second side oil chamber (22-2) respectively ) (ii) a The lubricating oil that does not flow into the pressure control valve may be returned to the oil tank (30) through the electromagnetic spill valve (26), or the lubricating oil pressure in each oil chamber may be changed in accordance with the operation mode of the components such as the booster oil pump (28), the pressure control valve device, and the electromagnetic spill valve (26) by receiving a control signal from the control system.
9. The automatic bearing lubrication pressure based roll neck position adjustment device according to claim 8, wherein: the pressure control valve device comprises a first pressure control valve (25-1), a second pressure control valve (25-2), a third pressure control valve (25-3) and a fourth pressure control valve (25-4); the oil passage device comprises a first oil passage (7-1), a second oil passage (7-2), a third oil passage (7-3) and a fourth oil passage (7-4).
10. The automatic adjusting device for roll neck position based on bearing lubricating oil pressure of claim 1, characterized in that: the control system comprises a control module (31), a sensor and an actuator; the sensors comprise a pressure sensor (32), a rotating speed sensor (33) and a steering sensor (34); the actuator comprises a booster oil pump (28), a pressure control valve device and an electromagnetic overflow valve (26); the control module (31) receives a roll rolling force p signal transmitted by the rolling force measuring device and a roll rotating speed v and a rotating direction signal transmitted by the roll rotating speed/steering measuring device in real time, analyzes, processes and calculates through the control module, and utilizes a Reynolds-cjh oil film thickness compensation principle:
in the formula, a, b and c are constants and can be obtained by the regression of the field measured data according to the debugging of the rolling process, P0Zero rolling force, v, as a reference0Is the reference rotation speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111631514.3A CN114289518A (en) | 2021-12-29 | 2021-12-29 | Automatic roller neck position adjusting device based on bearing lubricating oil pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111631514.3A CN114289518A (en) | 2021-12-29 | 2021-12-29 | Automatic roller neck position adjusting device based on bearing lubricating oil pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114289518A true CN114289518A (en) | 2022-04-08 |
Family
ID=80972034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111631514.3A Pending CN114289518A (en) | 2021-12-29 | 2021-12-29 | Automatic roller neck position adjusting device based on bearing lubricating oil pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114289518A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116422740A (en) * | 2023-06-14 | 2023-07-14 | 博瑞孚曼机械科技(苏州)有限公司 | Tool capable of changing space between housing and cold roll rolling equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55141310A (en) * | 1979-04-23 | 1980-11-05 | Nippon Kokan Kk <Nkk> | Controlling method for oil film of backup roll bearing of rolling mill |
| JPS61165217A (en) * | 1985-01-14 | 1986-07-25 | Kawasaki Steel Corp | Automatic sheet thickness controlling method for rolling mill |
| US4772137A (en) * | 1987-03-30 | 1988-09-20 | Morgan Construction Company | Oil film bearing and bushing |
| CN101115573A (en) * | 2005-02-08 | 2008-01-30 | 摩根建设公司 | Monitoring and alarm system for rolling mill oil film bearings |
| CN205270364U (en) * | 2016-01-11 | 2016-06-01 | 孔莹 | Rolling mill oil film bearing |
| CN206918078U (en) * | 2017-06-23 | 2018-01-23 | 臧志伟 | The hydrostatic bearing fueller of cold-rolling machine supporting-roller |
| CN108856299A (en) * | 2018-08-21 | 2018-11-23 | 成渝钒钛科技有限公司 | A kind of high line filmatic bearing lubricating arrangement of steel rolling and system |
-
2021
- 2021-12-29 CN CN202111631514.3A patent/CN114289518A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55141310A (en) * | 1979-04-23 | 1980-11-05 | Nippon Kokan Kk <Nkk> | Controlling method for oil film of backup roll bearing of rolling mill |
| JPS61165217A (en) * | 1985-01-14 | 1986-07-25 | Kawasaki Steel Corp | Automatic sheet thickness controlling method for rolling mill |
| US4772137A (en) * | 1987-03-30 | 1988-09-20 | Morgan Construction Company | Oil film bearing and bushing |
| CN101115573A (en) * | 2005-02-08 | 2008-01-30 | 摩根建设公司 | Monitoring and alarm system for rolling mill oil film bearings |
| CN205270364U (en) * | 2016-01-11 | 2016-06-01 | 孔莹 | Rolling mill oil film bearing |
| CN206918078U (en) * | 2017-06-23 | 2018-01-23 | 臧志伟 | The hydrostatic bearing fueller of cold-rolling machine supporting-roller |
| CN108856299A (en) * | 2018-08-21 | 2018-11-23 | 成渝钒钛科技有限公司 | A kind of high line filmatic bearing lubricating arrangement of steel rolling and system |
Non-Patent Citations (1)
| Title |
|---|
| 陈建华等: "中厚板轧机油膜厚度模型的研究", 钢铁, vol. 36, no. 11, pages 44 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116422740A (en) * | 2023-06-14 | 2023-07-14 | 博瑞孚曼机械科技(苏州)有限公司 | Tool capable of changing space between housing and cold roll rolling equipment |
| CN116422740B (en) * | 2023-06-14 | 2023-09-08 | 博瑞孚曼机械科技(苏州)有限公司 | Tool capable of changing space between housing and cold roll rolling equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114289518A (en) | Automatic roller neck position adjusting device based on bearing lubricating oil pressure | |
| RU2491142C2 (en) | Piston-type device for laminar cooling | |
| CN101417410B (en) | Grinding-bed static head rack capable of realizing accurate ultra micro-finishing | |
| JPH0418924B2 (en) | ||
| US3858424A (en) | Split type multistage rolling mill | |
| EP0194628B1 (en) | Double drum type continuous casting machine | |
| CN105436207A (en) | Direct drive inner-cooling rolling mill | |
| CN108380672B (en) | A kind of self-reacting device adjusting roll chock and rack gap | |
| CN1274302A (en) | Paper pulp refiner control system and method | |
| CN105142810A (en) | Method and rolling stand for cold rolling rolled stock | |
| US2243009A (en) | Rolling mill and bearing therefor | |
| CN201094970Y (en) | Roller way water-proof and lubricating device | |
| CN204892558U (en) | Accurate four roller sets of section bar close pass rolling mill adjusting device | |
| EP0580292B1 (en) | Cluster mills with additional profile control | |
| CN208293303U (en) | A kind of double eccentric block high-speed shaking boxes | |
| CN103267063A (en) | Linear bearing plate for rolling mill | |
| CN200961628Y (en) | Outer gap throttling cavity inner hole type oil return liquid static pressure bearing | |
| CN114755396B (en) | Online oil monitoring system | |
| US4182149A (en) | Roll stand | |
| CN101195127B (en) | Main transmission spindle carrier of roller mill locating and enclasping device | |
| CN201644729U (en) | Narrow edge width-adjusting device for electromechanical crystallizer | |
| CN107917331B (en) | Early warning device and emergency method for bearing lubrication system | |
| US3891283A (en) | Self-feeding hydrostatic | |
| CN102042471A (en) | Thin oil lubrication system of main transmission reduction box of continuous pipe rolling mill | |
| CN114226467B (en) | Roller symmetrical intersection angle fine adjustment device and method based on hydraulic cylinder pressure control |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |