Seamless steel tube cold-rolling mill based on automatic lubrication

Abstract

The invention discloses a seamless steel tube cold-rolling mill based on automatic lubrication, which is used for cooling seamless steel tube blanks and rollers in the cold rolling process, and comprises a cold-rolling mill body comprising a feeding section, a cold-rolling section and a discharging section which are connected in sequence; the mounting machine shell is detachably mounted on the cold rolling section; according to the scheme, precise lubrication is achieved through an adjustable lubrication mechanism, a lubrication regulator is slidably connected with a lubrication channel, a machine head of a cold rolling mill can drive the lubrication regulator to move along with the lubrication regulator in a modular installation mode of an installation machine shell, and the angle and the position are flexibly adjusted through a plurality of adjusting spraying assemblies; the whole periphery of a pipe blank and rollers are covered, flow controllability is achieved, abrasion is reduced, the problems that a traditional gooseneck pipe is incomplete in covering, hidden in installation and inconvenient to overhaul are solved, the cold rolling efficiency is improved, and the service life of equipment is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel pipe processing, in particular to a seamless steel pipe cold rolling mill based on automatic lubrication. BACKGROUND

[0002] Seamless steel pipes are widely used in oil and gas transportation, chemical corrosion medium transmission, high-pressure boiler superheater, mechanical hydraulic system and other scenes due to their hollow section, high strength to weight ratio and high pressure resistance characteristics. The processing technology of seamless steel pipes mainly includes hot rolling and cold rolling: hot rolled pipes are produced through the processes of piercing, rolling and sizing, and the outer diameter can reach hundreds of millimeters; cold rolled pipes are precisely processed by two-roller / three-roller rolling mills, and the outer diameter can be accurately controlled to less than 6mm, the wall thickness control precision can reach 0.25mm, and the surface finish is better than that of hot rolled pipes, especially suitable for precise mechanical structures, hydraulic cylinders and aerospace fields.

[0003] In the current cold rolling process of seamless steel pipes, process lubrication plays a key role: by reducing the metal deformation resistance to reduce energy consumption, cooling the roller and reducing surface wear, the traditional lubrication relies on manual oil replenishment, which is prone to cause the roller temperature to rise, the oil film to break and the product surface to be defective due to operation lag. The automatic lubrication system realizes automatic proportioning and replenishment of rolling oil and desalted water by real-time monitoring of the concentration of emulsion, iron content and electrical conductivity, and using a plate surface residual oil amount calculation formula, thereby avoiding concentration fluctuations caused by manual operation and improving the stability of plate surface quality.

[0004] However, the current automatic lubrication process of cold rolling mill still has significant defects: first, the existing lubrication equipment is inconvenient to maintain, most cleaning systems are installed close to the cold rolling mechanism, and the cold rolling space of the cold rolling mill is narrow and inconvenient to disassemble, replace and maintain. In addition, the pipeline used for cold rolling is usually narrow, which not only causes the lubrication pipeline to be prone to blockage, but also cannot cover the positions of the pipe blank and the roller, resulting in problems of decreased production efficiency and increased maintenance cost. Second, the lubricating oil pollution problem is prominent, various processing powders and external dust are easily mixed into the lubricating liquid, causing the use cost of the lubricating liquid to rise.

[0005] In summary, the existing technology generally has the defects of insufficient coverage, poor pollution prevention and control effect, high maintenance complexity, etc. In view of this, the present application is produced after in-depth research on the above problems. SUMMARY

[0006] In view of the deficiencies of the prior art, the present application provides a seamless steel pipe cold rolling mill based on automatic lubrication, which solves the problems of the prior art.

[0007] To achieve the above purpose, the present application realizes the following technical scheme: a seamless steel pipe cold rolling mill based on automatic lubrication is used to cool the seamless steel pipe blank and the roller in the cold rolling process, and the seamless steel pipe cold rolling mill comprises:

[0008] The cold rolling machine body comprises a feeding section, a cold rolling section and a discharging section connected in sequence;

[0009] The mounting shell is detachably mounted on the cold rolling section;

[0010] The adjustable lubricating mechanism comprises a lubricating channel, a lubricating regulator and a plurality of adjusting spray assemblies, the lubricating channel is detachably mounted on the cold rolling machine body, the lubricating regulator is arranged on the mounting shell and communicates with the lubricating channel, and the adjusting spray assemblies are uniformly arranged on the lubricating regulator.

[0011] The cold rolling machine head is slidably arranged on the cold rolling section, the mounting shell is connected with the cold rolling machine head, and the lubricating channel and the lubricating regulator are in sealed sliding fit.

[0012] The mounting seat is arranged on the lubricating channel and connected with the cold rolling machine body, the lubricating channel has an inlet and an outlet, the sliding plate is slidably arranged on the outlet, and the joint on the sliding plate is connected with the lubricating regulator.

[0013] The outlet is provided with a sliding groove on the side close to the lubricating regulator, the sliding plate is assembled on the sliding groove and abuts against the outlet, the two ends of the sliding groove are A point and B point respectively, the sliding plate can be switched between the A point and the B point, and the joint on the sliding plate can shield the outlet when the joint is at the A point or the B point.

[0014] The lubricating regulator comprises a fixed ring seat which is detachably connected with the mounting shell, the fixed ring seat is provided with a closed ring groove, a rotating ring seat is rotatably assembled on the closed ring groove, and an annular cavity is formed between the closed ring groove and the rotating ring seat.

[0015] The lubricating regulator further comprises an adjusting gear set and an adjusting driver, the rotating ring seat is provided with the adjusting gear set, the adjusting gear set comprises a driven gear sleeved on the rotating ring seat and a driving gear engaged with the driven gear, and the adjusting driver is connected with the driving gear.

[0016] The adjusting spray assembly comprises an adjusting rotating seat, an adjusting groove, an adjusting spray head and a rotating shaft.

[0017] The adjusting rotating seat is mounted on the rotating ring seat, the adjusting groove is arranged on the adjusting rotating seat, the adjusting spray head is movably mounted on the adjusting groove through the rotating shaft, and the control gear set is arranged on the rotating shaft to adjust the angle of the adjusting spray head.

[0018] The axial direction of the rotating shaft is perpendicular to the axial direction of the rotating ring seat in the same plane.

[0019] The seamless steel pipe cold rolling machine further comprises a lubricating circulation mechanism.

[0020] The lubricating circulation mechanism comprises a lubricating storage tank, a lubricating mixer and a lubricating control pump, the lubricating storage tank is connected with the lubricating control pump, the lubricating control pump is connected with the lubricating channel, and the lubricating mixer is installed on the lubricating storage tank.

[0021] The seamless steel pipe cold rolling machine further comprises a lubricating temperature control mechanism.

[0022] The lubricating temperature control mechanism comprises a refrigerating device, a temperature sensor and a heat exchanger, the heat exchanger is connected with the lubricating control pump and the inlet of the lubricating channel respectively, the temperature sensor is installed on the heat exchanger, and the refrigerating device is installed on the heat exchanger.

[0023] The seamless steel pipe cold rolling machine further comprises a cleaning and recycling system which is installed on the lubricating regulator and connected with the lubricating storage tank and used for recycling lubricating oil.

[0024] The cleaning and recycling system comprises a cleaning and recycling seat, a separation assembly, a suction assembly, a recycling groove and a recycling interface, the cleaning and recycling seat is detachably installed on the fixed ring seat, the recycling groove is arranged on the cleaning and recycling seat, the separation assembly is detachably connected to the recycling groove, the recycling interface is arranged at the bottom of the recycling groove in communication and connected with the suction assembly. Beneficial effects

[0025] The application provides a seamless steel pipe cold rolling machine based on automatic lubrication, which has the following beneficial effects: the adjustable lubricating mechanism realizes precise lubrication, the lubricating regulator is slidably connected with the lubricating channel, the modular installation of the installation shell enables the lubricating regulator to move with the head of the cold rolling machine, the angle and position of the plurality of adjusting spraying assemblies are flexibly adjusted, the whole circumference of the pipe blank and the roller are covered, the flow is controllable, the wear is reduced, the problems of incomplete coverage of the traditional goose neck pipe and inconvenient maintenance due to hidden installation are solved, the cold rolling efficiency and the equipment life are improved, and the application has the following beneficial effects.

[0026] 1. The adjustable lubricating mechanism is slidably connected with the lubricating channel through the lubricating regulator, drives the adjusting spraying assembly on the rotating ring seat to rotate and adjust the angle, and realizes precise control of the spraying direction in cooperation with the adjusting gear set, the structure covers the whole circumference of the pipe blank, solves the problems of incomplete coverage of the traditional goose neck pipe and lubrication dead angle caused by hidden installation, reduces the wear of the roller, improves the cold rolling uniformity, reduces surface defects caused by insufficient lubrication, and improves the product qualification rate.

[0027] 2. The cleaning recovery system intercepts the machining powder and dust through the filter hole of the separation assembly by the recovery plate, and the suction assembly sucks the filtered lubricating liquid back to the lubricating tank for recycling, which reduces the mixing of external pollutants, reduces the replacement frequency and use cost of the lubricating liquid, avoids the pipeline blockage problem, solves the cost increase and efficiency decrease caused by lubricating oil pollution, and realizes the double benefits of environmental protection and economy.

[0028] 3. The lubricating temperature control mechanism controls the lubricating medium in the range slightly lower than the normal temperature through the heat exchanger and the refrigeration device, the temperature sensor monitors and feeds back in real time, avoids the influence of temperature fluctuation on the performance of the pipe blank or energy waste, the lubricating channel is connected with the cold rolling machine body through the detachable mounting seat, the cover structure is used for the split design of the fixed ring seat, the quick disassembly, replacement and maintenance are facilitated, the maintenance difficulty caused by the narrow cold rolling space is solved, and the equipment downtime and maintenance cost are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a front view structural schematic diagram of the seamless steel pipe cold rolling machine based on automatic lubrication.

[0030] Figure 2 It is a first perspective structural schematic diagram of the seamless steel pipe cold rolling machine based on automatic lubrication.

[0031] Figure 3 It is a first top view structural schematic diagram of the seamless steel pipe cold rolling machine based on automatic lubrication.

[0032] Figure 4 It is a second top view structural schematic diagram of the seamless steel pipe cold rolling machine based on automatic lubrication.

[0033] Figure 5 It is a second perspective structural schematic diagram of the seamless steel pipe cold rolling machine based on automatic lubrication.

[0034] Figure 6 It is a perspective sectional view structural schematic diagram of the seamless steel pipe cold rolling machine based on automatic lubrication.

[0035] Figure 7 It is a perspective schematic diagram of the adjustable lubricating mechanism of the seamless steel pipe cold rolling machine based on automatic lubrication.

[0036] Figure 8 It is a local side view structural schematic diagram of the seamless steel pipe cold rolling machine based on automatic lubrication.

[0037] Figure 9 It is a local perspective structural schematic diagram of the seamless steel pipe cold rolling machine based on automatic lubrication.

[0038] Figure 10The application provides a local enlarged structure schematic view of an adjusting spray assembly of a seamless steel pipe cold rolling machine based on automatic lubrication.

[0039] In the figure, 1 is a cold rolling machine body, 2 is a lubricating circulation mechanism, 3 is an adjustable lubricating mechanism, 4 is a lubricating temperature control mechanism, 5 is a cleaning and recycling system, 6 is a seamless steel pipe blank, 11 is a feeding section, 12 is a cold rolling section, 13 is a discharging section, 14 is a cold rolling machine head, 15 is a mounting shell, 21 is a lubricating storage tank, 22 is a lubricating mixer, 23 is a lubricating control pump, 31 is a lubricating channel, 32 is a lubricating adjuster, 33 is an adjusting spray assembly, 41 is a refrigerating device, 42 is a temperature sensor, 43 is a heat exchanger, 51 is a cleaning and recycling seat, 52 is a separation assembly, 53 is a suction assembly, 54 is a recycling groove, 55 is a recycling interface, 311 is a mounting seat, 312 is a joint, 313 is an outlet, 314 is a sliding plate, 315 is an inlet, 321 is a fixed ring seat, 322 is a rotating ring seat, 323 is a closed ring groove, 324 is an adjusting gear set, 325 is an adjusting driver, 331 is an adjusting rotating seat, 332 is an adjusting groove, 333 is an adjusting spray head, 334 is a rotating shaft, 335 is a control gear set, 521 is a recycling plate, 522 is a buckle, 523 is a filter hole, 531 is an oil suction port, 532 is an oil suction pipe and 533 is an oil suction pump. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0041] Please refer to Figures 1-10 The application provides an embodiment: in the current cold rolling process of a seamless steel pipe, the diameter of a steel blank needs to be reduced under the action of rolling, therefore, in the cold rolling process of a common seamless steel pipe, a lubricating system needs to be used to cool and lubricate the steel pipe and a rolling roller, so that the metal deformation resistance is reduced to reduce energy consumption, and the rolling roller is cooled and surface wear is reduced.

[0042] The current automatic lubricating system is often installed in the form of a goose neck pipe, and the goose neck pipe is aligned with the pipe blank and the rolling roller during installation. However, the common goose neck pipe single pipe is easy to be blocked, the flow is small, and only one side or one position can be considered, the whole position of the pipe blank cannot be considered, and most of the goose neck pipes are installed in a hidden space and are not convenient to observe.

[0043] According to the drawings in the specification Figures 1-10It can be known that, in order to solve the above problems, the application discloses a seamless steel pipe cold rolling machine based on automatic lubrication, comprising: a cold rolling machine body 1, the cold rolling machine body 1 is an existing multi-roll pipe cold rolling machine, and a cold rolling mechanism is arranged on the cold rolling machine body 1, and the cold rolling mechanism adopts a multi-roll common working mode to perform the cold rolling work of the seamless steel pipe.

[0044] The automatic lubrication unit is connected with the cold rolling machine body 1, and through the connection with the cold rolling machine body 1, the automatic lubrication unit realizes the cold rolling lubrication and cooling of the seamless steel pipe through the circulating work; the automatic lubrication unit comprises a lubrication circulating mechanism 2, an adjustable lubrication mechanism 3, a lubrication temperature control mechanism 4 and a cleaning and recycling system 5.

[0045] The lubrication circulating mechanism 2 is installed on one side of the cold rolling machine body 1, the lubrication temperature control mechanism 4 is connected with the lubrication circulating mechanism 2, the adjustable lubrication mechanism 3 is connected with the lubrication temperature control mechanism 4, and the cleaning and recycling system 5 is arranged at the lower part of the cold rolling mechanism.

[0046] The lubrication circulating mechanism 2 serves as a circulating power to make the lubricating medium enter the lubrication temperature control mechanism 4, and the lubrication temperature control mechanism 4 is used for temperature control of the lubricating medium, so that the temperature of the lubricating medium is reduced; it should be noted that the lubrication temperature control mechanism 4 is used for reducing the lubricating medium to slightly lower than normal temperature, so as to achieve the lubrication purpose while cooling the roller; however, the temperature is not too low, on the one hand, to avoid the temperature causing the shrinkage of the pipe blank of the seamless steel pipe, and on the other hand, to avoid the waste of energy caused by the too low temperature; the adjustable lubrication mechanism 3 is attached to the cold rolling machine body 1 and connected with the automatic lubrication unit, and the cooling liquid pumped from the automatic lubrication unit is used as the lubricating medium to cool the seamless steel pipe blank 6 and the roller in the cold rolling process; the cleaning and recycling system 5 is connected with the lubrication circulating mechanism 2 and is used for recycling the lubricating liquid.

[0047] The adjustable lubrication mechanism 3 comprises a lubrication channel 31 detachably arranged on the cold rolling machine body 1, a lubrication adjuster 32 slidably arranged on the lubrication channel 31, an adjusting spraying assembly 33 arranged on the lubrication adjuster 32, and the adjusting spraying assembly 33 is used for cooling the cold rolling machine and the seamless steel pipe blank 6; the angle of the adjusting spraying assembly 33 is adjustable, so as to correspond to the positions of the seamless steel pipe and the roller; the lubrication adjuster 32 and the end of the lubrication channel 31 are connected in a sliding mode, so that the lubrication adjuster 32 can control the angle of the adjusting spraying assembly 33 to correspond to different positions.

[0048] The lubrication channel 31 is in a pipeline structure, one side of the lubrication channel 31 is provided with a mounting seat 311 which is detachably connected with the cold rolling machine body 1; specifically, the mounting seat 311 is connected with the cold rolling machine body 1 through a bolt rod.

[0049] The lubrication regulator 32 adopts an annular structure, and comprises a fixed ring seat 321 arranged on the cold rolling machine body 1, a rotating ring seat 322 rotatably arranged on the fixed ring seat 321, a closed ring groove 323 arranged on the fixed ring seat 321, the rotating ring seat 322 being nested on the closed ring groove 323, an adjusting gear set 324 arranged on the fixed ring seat 321, the adjusting gear set 324 comprising a driven gear sleeved on the rotating ring seat 322 and a driving gear engaged with the driven gear, an adjusting driver 325 arranged on one side of the fixed ring seat 321 and connected with the adjusting gear set 324, the adjusting driver 325 being a manual adjusting device or an automatic adjusting device, when the automatic adjusting device is adopted, the rotating ring seat 322 can rotate at a constant speed on the fixed ring seat 321, and the lubrication position can be more uniformly and comprehensively sprayed and lubricated, and the adjusting spraying assembly 33 is arranged on the rotating ring seat 322, the adjusting gear set 324 is driven to rotate by the adjusting driver 325, the adjusting gear set 324 drives the rotating ring seat 322 to rotate on the closed ring groove 323, and then the rotating ring seat 322 drives the adjusting spraying assembly 33 arranged thereon to change the position and the angle of the adjusting spraying assembly 33.

[0050] In some embodiments of the present application, the lubrication channel 31 is provided with a mounting seat 311 connected with the cold rolling machine body 1, the lubrication channel 31 has an inlet 315 and an outlet 313, the outlet 313 is slidably provided with a sliding plate 314, the sliding plate 314 is provided with a connector 312 connected with the lubrication regulator 32, the connector 312 is connected with a feeding pipe communicated with a cavity between the closed ring groove 323 and the rotating ring seat 322, the outlet 313 is provided with a sliding groove near one side of the lubrication regulator 32, the sliding plate 314 is arranged in the sliding groove and abuts against the outlet 313, two ends of the sliding groove are respectively point A and point B, the sliding plate 314 can be switched between point A and point B, and the connector 312 on the sliding plate 314 is located at point A or point B, the sliding plate 314 can shield the outlet 313, the sliding plate 314 and the sliding groove are matched, the sliding plate 314 can completely shield the outlet 313 no matter how the sliding plate 314 slides, and leakage is avoided, and the lubrication regulator 32 and the lubrication channel 31 are sealingly and slidably matched.

[0051] In some embodiments of the present application, the adjusting spray assembly 33 comprises an adjusting seat 331 in communication with the rotating ring seat 322, an adjusting groove 332 is arranged on the adjusting seat 331, the adjusting groove 332 is in communication with the adjusting nozzle 333 and the closed ring groove 323, the adjusting nozzle 333 is movably connected with the two walls of the adjusting groove 332 through a rotating shaft 334, a control gear set 335 is arranged on the rotating shaft 334 to fix the angle of the adjusting nozzle 333, the rotating shaft 334 drives the adjusting nozzle 333 to rotate through the adjustment of the control gear set 335, and after adjustment, the adjusting nozzle 333 is in communication with the adjusting groove 332, and the adjusting groove 332 is in communication with the rotating ring seat 322, so that the passage formed thereby realizes the ejection of lubricating oil.

[0052] In some embodiments of the present application, the lubricating circulating mechanism 2 comprises a lubricating storage tank 21, a lubricating mixer 22 and a lubricating control pump 23, the lubricating storage tank 21 is installed on one side of the cold rolling machine body 1, the lubricating mixer 22 is arranged on the lubricating storage tank 21, and the lubricating control pump 23 is in communication with the lubricating storage tank 21. The lubricating storage tank 21 is a cylindrical cavity tank body for storing lubricating medium, and the lubricating medium is preferably mineral base oil doped with additives such as rust inhibitor, emulsifier and extreme pressure agent. The lubricating mixer 22 is installed on the lubricating storage tank 21 and is driven by a speed reducer motor. The driving end of the speed reducer motor is connected to a mixing shaft through a connecting shaft. The mixing shaft drives the mixer to mix the above-mentioned additives with the mineral base oil. After mixing, the lubricating control pump 23 is used to pump the mixture into the lubricating channel 31. The inlet 315 of the lubricating channel 31 is connected to the lubricating control pump 23.

[0053] In some embodiments of the present application, the lubricating temperature control mechanism 4 comprises a refrigeration device 41, a temperature sensor 42 and a heat exchanger 43. The heat exchanger 43 is installed between the inlet 315 of the lubricating channel 31 and the lubricating control pump 23. The temperature sensor 42 is installed on the heat exchanger 43. The refrigeration device 41 is connected to the heat exchanger 43. The refrigeration device 41 is preferably an air refrigeration device 41. The heat exchanger 43 is provided with fins. When air flows through the fins at high speed, the heat of the lubricating medium flowing through the heat exchanger 43 is taken away, so that the lubricating medium has a lower temperature. The temperature sensor 42 is located at the outlet 313 of the heat exchanger 43. The temperature sensor 42 detects the temperature and controls the power of the heat exchanger 43 to control the temperature of the lubricating oil.

[0054] In some embodiments of the present application, the cleaning and recycling system 5 is connected to the adjustable lubricating mechanism 3, and the lubricating oil sprayed by the adjustable lubricating mechanism 3 is collected through the cleaning and recycling system 5, wherein the cleaning and recycling system 5 comprises a cleaning and recycling seat 51 which is detachably installed on the fixed ring seat 321, and a separation assembly 52 is detachably arranged on the cleaning and recycling seat 51, the lubricating oil is filtered by the separation assembly 52, and then a suction assembly 53 is arranged on the cleaning and recycling seat 51, and the filtered lubricating oil is sucked into the lubricating storage tank 21 by the suction assembly 53.

[0055] In some embodiments of the present application, the cleaning and recycling seat 51 is an arc-shaped plate, a recycling groove 54 is formed on the cleaning and recycling seat 51, the recycling groove 54 corresponds to the upper adjustable lubricating mechanism 3, the separation assembly 52 is assembled on the recycling groove 54, a recycling interface 55 is arranged on one side of the recycling groove 54, and the suction assembly 53 is connected with the recycling interface 55.

[0056] In some embodiments of the present application, the separation assembly 52 comprises a recycling plate 521 and a buckle 522, the recycling plate 521 is inserted into the recycling groove 54, a clamping groove is arranged on the recycling groove 54 and matched with the buckle 522, the buckle 522 is a elastic buckle 522, after the recycling plate 521 is inserted into the recycling groove 54 and positioned, the buckle 522 clamps the clamping groove, and then a plurality of filter holes 523 are formed on the recycling plate 521 in a matrix.

[0057] In some embodiments of the present application, the suction assembly 53 comprises an oil suction port 531, an oil suction pipe 532 and an oil suction pump 533, the oil suction pump 533 generates negative pressure, the oil separated by the separation assembly 52 is sucked out through the oil suction pipe 532 and then fed into the lubricating storage tank 21 through the oil suction pipe 532.

[0058] In some embodiments of the present application, the cold rolling machine body 1 comprises an upper feeding section 11, a cold rolling section 12 and a lower discharging section 13, the cold rolling section 12 is connected with the upper feeding section 11 and the lower discharging section 13 respectively, the seamless steel pipe blank 6 is pushed into the cold rolling section 12 by the linear motor of the upper feeding section 11, a plurality of rollers are arranged on the cold rolling section 12, a mounting shell 15 is arranged on the cold rolling section 12, the mounting shell 15 is used for arranging the plurality of rollers, and the plurality of rollers reciprocate under the action of the power device of the cold rolling section 12, so that the plurality of rollers cold-rolls the passing seamless steel pipe blank 6, a rotating mechanism is further arranged on the linear motor to control the index rotation of the seamless steel pipe blank 6, so that the cold rolling is more uniform, the fixed ring seat 321 is connected with the mounting shell 15 in a split manner, so that the adjustable lubricating mechanism 3 can be quickly disassembled, replaced and maintained, and the lower discharging section 13 is arranged opposite to the upper feeding section 11.

[0059] The method or process for using the automatic lubrication cold rolling mill: first, install and debug the equipment, install the lubrication circulating mechanism 2 on one side of the cold rolling mill body 1, store the lubricating medium mixed by mineral base oil and anti-rust agent, emulsifier, extreme pressure agent and other additives in the lubricating storage tank 21, and complete the mixing in the lubricating mixing device 22, then pump into the lubricating channel 31 through the lubricating control pump 23; start the lubrication temperature control mechanism 4, control the temperature of the lubricating medium to be slightly lower than the normal temperature through the heat exchanger 43 and the refrigeration device 41, and the temperature sensor 42 monitors and feeds back in real time; start the cold rolling mill body 1, the straight line motor of the feeding section 11 pushes the pipe blank into the cold rolling section 12, and the adjustable lubricating mechanism 3 rotates the adjustable spraying assembly 33 to the appropriate angle through the lubricating regulator 32 to accurately spray and lubricate the pipe blank and the roller; the lubricated medium is collected by the recovery plate 521 of the cleaning and recycling system 5, filtered by the separation assembly 52, and pumped back to the lubricating storage tank 21 by the suction assembly 53, realizing the recycling of the lubricating medium, and the specific flow path of the lubricating medium is: lubricating storage tank 21→mixing device→pump→lubricating channel 31→adjustable lubricating mechanism 3 spraying→cleaning and recycling system 5 filtering→suction assembly 53→lubricating storage tank 21; the whole process works cooperatively through various mechanisms to ensure controllable lubricating medium flow, comprehensive coverage, accurate temperature, clean recycling and recycling, and improve the efficiency and stability of the equipment.

[0060] Through the design of the lubricating regulator 32 and the adjustable spraying assembly 33 of the adjustable lubricating mechanism 3, the flow and spraying angle of the lubricating medium are accurately adjusted, the problem of limited coverage of the traditional goose neck pipe is solved, and uniform lubrication and cooling of each part of the pipe blank and the roller are ensured; the lubrication temperature control mechanism 4 controls the temperature accurately, realizes the cooling and lubrication effect, and avoids the pipe blank from being shrunk or energy wasted due to too low temperature; the cleaning and recycling system 5 realizes the recycling of the lubricating medium through the filtering and suction assembly 53, reduces resource waste and environmental pollution; the mechanisms work cooperatively to form a closed loop system, improve the efficiency and stability of the equipment, reduce energy consumption and roller wear, prolong the service life of the equipment, and have significant economic and environmental benefits.

[0061] Although embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A seamless steel pipe cold rolling mill based on automatic lubrication, used to cool the seamless steel pipe billet (6) and rolls during the cold rolling process, characterized in that, The seamless steel pipe cold rolling mill includes: The cold rolling mill body (1) includes a feeding section (11), a cold rolling section (12) and a unloading section (13) connected in sequence. The mounting housing (15) is detachably mounted on the cold rolling section (12); The adjustable lubrication mechanism (3) includes a lubrication channel (31), a lubrication regulator (32), and an adjustable spray assembly (33). The lubrication channel (31) is detachably installed on the cold rolling mill body (1). The lubrication regulator (32) is located on the mounting housing (15) and is connected to the lubrication channel (31). The number of adjustable spray assemblies (33) is multiple and evenly distributed on the lubrication regulator (32). The cold rolling section (12) is slidably provided with a cold rolling mill head (14), the mounting housing (15) is connected to the cold rolling mill head (14), and the lubrication channel (31) is sealed and slidably fitted with the lubrication regulator (32).

2. The seamless steel pipe cold rolling mill based on automatic lubrication according to claim 1, characterized in that, The lubrication channel (31) is provided with a mounting base (311) connected to the cold rolling mill body (1). The lubrication channel (31) has an inlet (315) and an outlet (313). A sliding plate (314) is slidably provided on the outlet (313). A connector (312) is provided on the sliding plate (314) and connected to the lubrication regulator (32).

3. A seamless steel pipe cold rolling mill based on automatic lubrication according to claim 2, characterized in that, The outlet (313) has a groove on the side near the lubrication regulator (32). The sliding plate (314) is mounted on the groove and abuts against the outlet (313). The two ends of the groove are point A and point B, respectively. The sliding plate (314) can switch between point A and point B. When the connector (312) on the sliding plate (314) is at point A or point B, the sliding plate (314) can block the outlet (313).

4. A seamless steel pipe cold rolling mill based on automatic lubrication according to claim 3, characterized in that, The lubrication regulator (32) includes a fixed ring seat (321) which is detachably connected to the mounting housing (15). The fixed ring seat (321) is provided with a closed ring groove (323), and a rotating ring seat (322) is rotatably mounted on the closed ring groove (323). The closed ring groove (323) and the rotating ring seat (322) form an annular cavity.

5. A seamless steel pipe cold rolling mill based on automatic lubrication according to claim 4, characterized in that, The lubrication regulator (32) further includes an adjusting gear set (324) and an adjusting driver (325). The rotating ring seat (322) is provided with the adjusting gear set (324). The adjusting gear set (324) consists of a driven gear fitted on the rotating ring seat (322) and a driving gear meshing with the driven gear. The adjusting driver (325) is connected to the driving gear.

6. A seamless steel pipe cold rolling mill based on automatic lubrication according to claim 5, characterized in that, The adjustable spray assembly (33) includes: an adjustable rotating base (331), an adjustable groove (332), an adjustable nozzle (333), and a rotating shaft (334). The adjusting rotating seat (331) is mounted on the rotating ring seat (322). The adjusting rotating seat (331) has an adjusting groove (332). The adjusting nozzle (333) is movably mounted on the adjusting groove (332) via a rotating shaft (334). The rotating shaft (334) is provided with a control gear set (335) for adjusting the angle of the adjusting nozzle (333).

7. A seamless steel pipe cold rolling mill based on automatic lubrication according to claim 6, characterized in that, The axial direction of the rotating shaft (334) is perpendicular to the axial direction of the rotating ring seat (322) in the same plane.

8. A seamless steel pipe cold rolling mill based on automatic lubrication according to claim 7, characterized in that, The seamless steel pipe cold rolling mill also includes: a lubrication circulation mechanism (2). The lubrication circulation mechanism (2) includes: a lubrication storage tank (21), a lubrication mixer (22), and a lubrication control pump (23). The lubrication storage tank (21) is connected to the lubrication control pump (23), the lubrication control pump (23) is connected to the lubrication channel (31), and the lubrication mixer (22) is installed on the lubrication storage tank (21).

9. A seamless steel pipe cold rolling mill based on automatic lubrication according to claim 8, characterized in that, The seamless steel pipe cold rolling mill also includes: a lubrication temperature control mechanism (4). The lubrication temperature control mechanism (4) includes a cooler (41), a temperature sensor (42), and a heat exchanger (43). The heat exchanger (43) is connected to the lubrication control pump (23) and the inlet (315) of the lubrication channel (31), respectively. The temperature sensor (42) is installed on the heat exchanger (43), and the cooler (41) is installed on the heat exchanger (43).

10. A seamless steel pipe cold rolling mill based on automatic lubrication according to claim 9, characterized in that, The seamless steel pipe cold rolling mill also includes a cleaning and recycling system (5), which is installed on the lubrication regulator (32) and connected to the lubrication storage tank (21) for recycling lubricating oil.

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