Intelligent thin oil lubricating structure for supporting roll of cold rolling mill

Abstract

The utility model relates to an intelligent thin oil lubricating structure for a supporting roll of a cold rolling mill, which comprises a bearing seat inner lubricating hole channel part for lubricating thin oil in a bearing seat to flow and a thin oil lubricating pipeline part arranged outside the bearing seat, and the thin oil lubricating pipeline part comprises a thin oil supply pipeline and a thin oil return pipeline; the lubricating hole channel part in the bearing seat comprises an oil inlet hole channel part and an oil return hole channel part, the oil inlet hole channel part is communicated with a thin oil supply pipeline, and the oil return hole channel part is communicated with a thin oil return pipeline; the thin oil supply pipeline is provided with an electric control flowmeter and an electric control throttle valve which are used for adjusting the flow, the thin oil return pipeline is provided with a temperature sensor used for monitoring and displaying the thin oil return temperature, and the electric control flowmeter and the electric control throttle valve adjust the flow of the thin oil supply pipeline in real time according to the thin oil return temperature monitored by the temperature sensor. The temperature of the bearing can be effectively reduced; the thin oil can be detected and adjusted more intelligently and directly; requirements of high-speed rolling mill operation can be met, and production cost is further saved.

Description

Technical Field

[0001] The utility model relates to the technical field of cold rolling mills, in particular to a thin oil intelligent lubrication structure for a cold rolling mill support roller. Background Art

[0002] With the rapid development of economy and industry, the rolling speed of cold rolling mills is getting faster and faster, and the lubrication requirements for support rollers are getting higher and higher. The previous dry oil, oil-gas and other lubrication technologies have obvious heating of bearings, so the use of thin oil lubrication technology has become necessary. The configuration of thin oil lubrication technology with corresponding intelligent detection and adjustment is also a trend to adapt to the development of modern technology.

[0003] The traditional dry oil and oil-gas lubrication technology for support rollers will cause high bearing temperature when the speed is too high, which will have a great impact on the bearing life. The traditional thin oil technology can only be mechanically inspected manually and lacks intelligent detection and adjustment. Some adopt a mixed technical solution of thin oil and oil-gas lubrication. Generally, production lines try to use one lubrication method for the same equipment to save production capital and improve efficiency.

[0004] Therefore, the inventor, relying on his many years of experience and practice in related industries, proposes a thin oil intelligent lubrication structure for the support rolls of a cold rolling mill to overcome the defects of the prior art. Utility Model Content

[0005] The purpose of the utility model is to provide a thin oil intelligent lubrication structure for the support rollers of a cold rolling mill. The thin oil lubrication technology is adopted to effectively reduce the bearing temperature; and an intelligent detection and adjustment instrument is configured on the thin oil lubrication pipeline, which is more intelligent and direct for detecting and adjusting the thin oil; only this single lubrication technology solution can be used to meet the needs of high-speed rolling mill operation, thereby saving production costs.

[0006] The purpose of the utility model is achieved in this way. A cold rolling mill supporting roller thin oil intelligent lubrication structure comprises a bearing seat internal lubrication channel portion for the flow of lubricating thin oil in the bearing seat and a thin oil lubrication pipeline portion arranged outside the bearing seat, the thin oil lubrication pipeline portion comprising a thin oil supply pipeline and a thin oil return pipeline; the bearing seat internal lubrication channel portion comprises an oil inlet channel portion and an oil return channel portion, the oil inlet channel portion is connected to the thin oil supply pipeline, and the oil return channel portion is connected to the thin oil return pipeline; an electronically controlled flowmeter and an electronically controlled throttle valve for flow regulation are arranged on the thin oil supply pipeline, a temperature sensor for monitoring and displaying the thin oil return oil temperature is arranged on the thin oil return oil pipeline, the electronically controlled flowmeter and the electronically controlled throttle valve adjust the flow of the thin oil supply pipeline in real time through the thin oil return oil temperature monitored by the temperature sensor.

[0007] In a preferred embodiment of the present invention, the oil inlet channel portion includes a main oil inlet channel and a plurality of oil inlet lubrication channels arranged in a ring on the inner wall of the bearing seat, and each of the oil inlet lubrication channels is connected to the main oil inlet channel through an oil inlet through hole.

[0008] In a preferred embodiment of the present invention, the end of the main oil inlet channel is connected to the thin oil supply pipeline through an oil inlet flange.

[0009] In a preferred embodiment of the present invention, the cross-sectional dimension of the oil inlet lubrication channel on the side close to the support roller is greater than the cross-sectional dimension of the oil inlet lubrication channel on the side away from the support roller.

[0010] In a preferred embodiment of the present invention, an inner oil return space is set between the inner end surface of the bearing seat and the inner end cover of the bearing seat, and an outer oil return space is set between the outer end surface of the bearing seat and the outer end cover of the bearing seat, and the oil return channel portion includes a main oil return channel and an oil return cooling channel connected to the inner oil return space.

[0011] In a preferred embodiment of the present utility model, the end of the main oil return channel is connected to the thin oil return pipeline through an oil return flange.

[0012] In a preferred embodiment of the present utility model, the oil inlet passage portion further includes an end oil inlet through hole provided in the side wall of the outer end cover on the operating side, and the end oil inlet through hole is connected to the thin oil supply pipeline;

[0013] The oil return channel portion further includes an end oil return through hole arranged in the side wall of the outer end cover on the operating side, and the end oil return through hole is communicated with the outer oil return space.

[0014] In a preferred embodiment of the present invention, the thin oil supply pipeline is connected to the main oil inlet channel on the bearing seat of the upper support roller through the first oil port, and the thin oil supply pipeline is connected to the main oil inlet channel on the bearing seat of the lower support roller through the second oil port. A pressure measuring joint and a pressure gauge for mechanically measuring and calibrating the pressure of the thin oil supply pipeline are connected to a position near the first oil port on the thin oil supply pipeline;

[0015] The thin oil supply pipeline is connected with an electronic pressure switch arranged between the frames, the electronic pressure switch is electrically connected with a remotely arranged electrical control system, and the electronic pressure switch displays the pressure of the oil supply pipeline through the electrical control system and on-site;

[0016] An electronically controlled flow meter is provided on the thin oil supply pipeline between the electronic pressure switch and the first oil port, and an electronically controlled flow meter is provided on the thin oil supply pipeline between the electronic pressure switch and the second oil port;

[0017] The thin oil supply pipeline is communicated with the end oil inlet through hole through the third oil port, and the electric-controlled throttle valve is arranged at the end oil inlet through hole.

[0018] In a preferred embodiment of the present invention, a mechanical throttle valve is arranged on the thin oil supply pipeline between the electronic pressure switch and the electric control flow meter near the first oil port, and a manual butterfly valve is arranged on the thin oil supply pipeline between the electronic pressure switch and the electric control flow meter near the second oil port.

[0019] In a preferred embodiment of the present invention, the first oil port is connected to the main oil inlet channel on the bearing seat of the upper support roller through a quick-change joint and a hose, and the second oil port is connected to the main oil inlet channel on the bearing seat of the lower support roller through a quick-change joint and a hose.

[0020] As described above, the thin oil intelligent lubrication structure of the cold rolling mill support roll of the utility model has the following beneficial effects:

[0021] In the utility model, the lubrication channel portion of the bearing seat arranged in the bearing seat can meet the good lubrication of the bearing by the thin oil when the supporting roller runs at high speed, and can meet the circulation flow of the thin oil, effectively reducing the bearing temperature; the thin oil lubrication pipeline portion outside the bearing seat is equipped with an intelligent detection electronically controlled flow meter, an electronically controlled throttle valve, and a temperature sensor, so that the detection and adjustment of the thin oil are more intelligent and direct, and the intelligent management of the pipeline is realized through the feedback and control of the intelligent components, so that the on-site operators can better monitor the thin oil operation and then infer the bearing lubrication condition, and the purpose of regulation can be achieved by adjusting the lubrication amount of the thin oil, thereby ensuring the working efficiency of the bearing and improving the operating production efficiency; the design of the lubrication channel portion in the bearing seat and the intelligent pipeline setting can debug the most suitable working environment for the bearing, thereby greatly improving the working life of the bearing and improving the production efficiency; the single lubrication technology solution of the utility model can solve the needs of high-speed rolling mill operation and save production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The following drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the present invention.

[0023] Figure 1 This is a schematic diagram of the thin oil lubrication principle of the thin oil intelligent lubrication structure of the cold rolling mill support roller of the utility model.

[0024] Figure 2 It is a schematic diagram of the lubrication channel portion in the bearing seat of the cold rolling mill support roll thin oil intelligent lubrication structure of the utility model.

[0025] Figure 3 for Figure 2 Center A view.

[0026] Figure 4 for Figure 2 Center B view.

[0027] Figure 5 It is a partial schematic diagram of the operating side bearing seat.

[0028] Figure 6 Schematic diagram of the entrance of the end oil inlet hole on the operating side.

[0029] Figure 7 Schematic diagram of the oil inlet channel.

[0030] Figure 8 It is a schematic diagram of the oil return channel.

[0031] In the figure:

[0032] 101. Support roller; 102. Four-row cylindrical roller bearing; 103. Double-row tapered roller bearing; 104. Outer end cover on operating side; 105. Inner end cover on operating side; 106. Bearing seat on operating side; 107. Outer end cover on transmission side; 108. Inner end cover on transmission side; 109. Bearing seat on transmission side; 110. Connecting rod; 111. Skeleton oil seal; 112. Water seal; 113. Oil inlet flange on operating side; 114. Thrust bearing sealing flange; 115. Thrust bearing oil inlet flange; 116. Oil inlet flange on transmission side; 117. Oil return flange on operating side; 118. Oil return flange on transmission side; 119. Upper support roller; 120. Lower support roller;

[0033] 2. Thin oil supply pipeline; 21. Electric throttle valve; 22. Electronic pressure switch; 23. Pressure measuring joint and pressure gauge; 24. Electric flow meter; 25. Manual butterfly valve; 26. Mechanical throttle valve; 27. Quick-change joint and hose;

[0034] 3. Thin oil return pipeline; 31. Temperature sensor;

[0035] 4. Oil inlet channel; 41. Main oil inlet channel; 42. Oil inlet lubrication channel; 43. Oil inlet through hole; 44. End oil inlet through hole;

[0036] 5. Oil return channel; 51. Main oil return channel; 52. Oil return cooling channel; 53. Inner oil return space; 54. Outer oil return space; 55. End oil return through hole. DETAILED DESCRIPTION

[0037] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0038] The specific implementation of the utility model described herein is only used to explain the purpose of the utility model, and cannot be understood as a limitation of the utility model in any way. Under the guidance of the utility model, technicians can conceive of any possible deformation based on the utility model, which should be regarded as belonging to the scope of the utility model. It should be noted that when an element is referred to as "arranged on" another element, it can be directly on the other element or there can also be a central element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a central element at the same time. The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation method.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0040] like Figures 1 to 8 As shown, the utility model provides a thin oil intelligent lubrication structure for the support rollers of a cold rolling mill, comprising a bearing seat internal lubrication channel portion for the flow of lubricating thin oil in the bearing seat and a thin oil lubrication pipeline portion arranged outside the bearing seat, the thin oil lubrication pipeline portion comprising a thin oil supply pipeline 2 and a thin oil return pipeline 3; the bearing seat internal lubrication channel portion comprises an oil inlet channel portion 4 and an oil return channel portion 5, the oil inlet channel portion 4 is connected to the thin oil supply pipeline 2, and the oil return channel portion 5 is connected to the thin oil return pipeline 3; the thin oil supply pipeline 2 is provided with an electronically controlled flowmeter 24 and an electronically controlled throttle valve 21 for flow regulation, the thin oil return pipeline 3 is provided with a temperature sensor 31 for monitoring and displaying the thin oil return temperature, the electronically controlled flowmeter 24 and the electronically controlled throttle valve 21 adjust the flow of the thin oil supply pipeline 2 in real time through the thin oil return temperature monitored by the temperature sensor 31.

[0041] The intelligent instruments installed in the thin oil lubrication pipeline can realize real-time monitoring of flow, temperature, pressure, etc., and adjust the flow through the electronically controlled flow meter and electronically controlled throttle valve based on these data; such a configuration can be observed with the naked eye on site and can also be viewed in the electrical system, providing a basis for intelligently adjusting the thin oil flow and pressure of the pipeline, ensuring the working efficiency of the bearings, and improving operational production efficiency.

[0042] In the utility model, the lubrication channel portion of the bearing seat arranged in the bearing seat can meet the good lubrication of the bearing by the thin oil when the supporting roller runs at high speed, and can meet the circulation flow of the thin oil, effectively reducing the bearing temperature; the thin oil lubrication pipeline portion outside the bearing seat is equipped with an intelligent detection electronically controlled flow meter, an electronically controlled throttle valve, and a temperature sensor, so that the detection and adjustment of the thin oil are more intelligent and direct, and the intelligent management of the pipeline is realized through the feedback and control of the intelligent components, so that the on-site operators can better monitor the thin oil operation and then infer the bearing lubrication condition, and the purpose of regulation can be achieved by adjusting the lubrication amount of the thin oil, thereby ensuring the working efficiency of the bearing and improving the operating production efficiency; the design of the lubrication channel portion in the bearing seat and the intelligent pipeline setting can debug the most suitable working environment for the bearing, thereby greatly improving the working life of the bearing and improving the production efficiency; the single lubrication technology solution of the utility model can solve the needs of high-speed rolling mill operation and save production costs.

[0043] Further, if Figure 7 As shown, the oil inlet channel portion 4 includes a main oil inlet channel 41 and a plurality of oil inlet lubrication channels 42 arranged around the inner wall of the bearing seat, and each oil inlet lubrication channel 42 is connected to the main oil inlet channel 41 through an oil inlet through hole 43.

[0044] Furthermore, the cross-sectional dimension of the oil inlet lubrication channel on the side close to the support roller 101 is greater than the cross-sectional dimension of the oil inlet lubrication channel on the side away from the support roller 101 .

[0045] Further, if Figure 3 , Figure 4 , Figure 5 As shown, the end of the main oil inlet channel 41 is connected to the thin oil supply pipeline 2 through the oil inlet flange (operating side oil inlet flange 113, thrust bearing oil inlet flange 115, transmission side oil inlet flange 116).

[0046] The oil inlet lubrication channels 42 are designed with corresponding lubrication channel spacing dimensions according to the lubrication channel dimensions (cross-sectional dimensions) of the bearing. Usually, a four-row cylindrical roller bearing 102 is usually provided with three lubrication channels, so the bearing seat correspondingly opens three oil inlet lubrication channels 42.

[0047] It should be noted that the oil inlet lubrication channel 42 in the middle of the bearing seat is the smallest in size, which corresponds to the oil return channel in the middle of the oil return channel for cooling the oil. The size difference is set here to facilitate the main purpose of oil return cooling ( Figure 2 The positional relationship between the oil inlet and oil return holes can be displayed. The upper side is the bearing oil inlet, which corresponds to the bearing seat; the five circles on the lower side are the bearing seat oil return holes. Figure 7 and Figure 8Put them together and you can see the relative position relationship between the oil inlet hole and the oil return hole); the size of the oil inlet lubrication channel 42 near the outer side of the bearing is the second smallest, because this place is far away from the center of the roll, and the temperature rise is smaller than that of the inner side (proximal end); the size of the oil inlet lubrication channel 42 close to the center of the roll is the largest, because this place is close to the center of the roll, the temperature rise will be larger, and the oil supply amount should be increased;

[0048] Lubrication holes are opened at corresponding positions on the side close to the support roller 101 and the side far from the support roller 101 to retain lubricating oil, thereby achieving lubrication through the two lubrication holes.

[0049] Further, if Figure 2 , Figure 8 As shown, an inner oil return space 53 is set between the inner end surface of the bearing seat and the inner end cover of the bearing seat, and an outer oil return space 54 is set between the outer end surface of the bearing seat and the outer end cover of the bearing seat. The oil return channel portion includes a main oil return channel 51 and an oil return cooling channel 52 connected to the inner oil return space.

[0050] Further, if Figure 3 , Figure 4 As shown, the end of the main oil return channel 51 is connected to the thin oil return pipeline 3 through the oil return flange (the operating side oil return flange 117 and the transmission side oil return flange 118).

[0051] Further, if Figure 2 , Figure 6 As shown, the oil inlet passage portion 4 also includes an end oil inlet through hole 44 disposed in the side wall of the outer end cover 104 on the operating side, and the end oil inlet through hole 44 is connected to the thin oil supply pipeline 2;

[0052] The oil return passage portion 5 further includes an end oil return through hole 55 disposed in the side wall of the outer end cover 104 on the operating side, and the end oil return through hole 55 is communicated with the outer oil return space 54 .

[0053] In addition to the middle position, the return oil cooling channel 52 is also opened at the outer ends of both sides of the bearing, which are connected with the main oil return channel 51 to achieve smooth oil return; in order to better achieve smooth oil return, it is necessary to increase the oil return space (outer oil return space 54) at both ends of the outer side of this bearing, and the corresponding bearing seat and corresponding bearing are separately designed with an oil return space (inner oil return space 53) close to the roller end; the corresponding operating side outer end cover 104 and the transmission side outer end cover 107 are also correspondingly separately designed with oil return space away from the roller end, thereby achieving smooth oil return of the thin oil and better realizing the oil return cooling function of the thin oil.

[0054] Since the operating side has an additional operating side double row tapered roller bearing 103, a separate oil return channel (end oil return hole 55) is designed in the operating side outer end cover 104 to connect to the main oil return channel 51 to better achieve lubrication and cooling of the bearing.

[0055] According to the design principle of the lubrication hole portion in the bearing seat, the lubrication hole portion in the bearing seat ensures that there is thin oil on the one hand to achieve the lubrication function; on the other hand, the lubrication hole portion in the bearing seat ensures oil return space, smooth oil return, and achieves cooling function, thereby ensuring that the lubrication and cooling functions of the thin oil are effective.

[0056] Reasonable setting of the lubrication channel in the bearing seat can ensure that the bearing is in a good working environment, prolong the bearing life and improve production efficiency.

[0057] Further, if Figure 1 As shown, the thin oil supply pipeline 2 is connected to the main oil inlet channel 41 on the bearing seat of the upper support roller through the first oil port, and the thin oil supply pipeline 2 is connected to the main oil inlet channel 41 on the bearing seat of the lower support roller through the second oil port. The thin oil supply pipeline 2 is connected to a pressure measuring joint and a pressure gauge 23 for mechanically measuring and calibrating the pressure of the thin oil supply pipeline at a position close to the first oil port; the pressure measuring joint and the pressure gauge 23 are used to mechanically measure and calibrate the pressure of the oil supply pipeline to achieve accurate measurement and correction;

[0058] The thin oil supply pipeline 2 is connected to an electronic pressure switch 22 disposed between the frames, and the electronic pressure switch 22 is electrically connected to a remotely disposed electrical control system (existing technology), and the electronic pressure switch 22 displays the pressure of the oil supply pipeline through the electrical control system and on-site;

[0059] Specifically, the electronic pressure switch 22 is guided by a hard pipe to a position between the frames that is easy to observe. The working environment at this position is better, which is conducive to extending the service life of the electronic pressure switch 22. At the same time, this component can be connected to the electrical control system to display the oil supply pipeline pressure in the system, thereby realizing the observation of the oil supply pipeline in the electrical system and on-site at the same time.

[0060] An electronically controlled flow meter 24 is provided on the thin oil supply pipeline 2 between the electronic pressure switch 22 and the first oil port, and an electronically controlled flow meter 24 is provided on the thin oil supply pipeline 2 between the electronic pressure switch 22 and the second oil port;

[0061] Specifically, the flow meter here needs special design to meet the following requirements. First, the overall protection level of the sensor end is IP68. Since it is located in the rolling mill, the water mist environment is relatively harsh, and the protection level must be high. Secondly, it has its own digital display dial. The display dial and the sensor end are connected by a cable. The dial is placed in a position convenient for installation and observation between the cover and the platform, which is convenient for monitoring. At the same time, the dial and the electrical system can realize data transmission, and the electrical system can realize detection, display, and adjustment. This flow meter can adjust the flow at the sensor end through remote operation of the electrical control system to realize intelligent adjustment of the flow. In traditional mechanical flow meters, the dial and the sensor are installed in the rolling mill as a whole, which is easy to damage and not easy to observe and display. The electric control flow meter 24 of the utility model has an electric control throttling function, which can realize the flow adjustment function in the electrical system.

[0062] The thin oil supply pipeline 2 is connected to the end oil inlet through hole through the third oil port, and an electric-controlled throttle valve 21 is arranged at the end oil inlet through hole.

[0063] Further, if Figure 1 As shown, a mechanical throttle valve 26 is provided on the thin oil supply pipeline 2 between the electronic pressure switch 22 and the electronically controlled flow meter 24 near the first oil port, and a manual butterfly valve 25 is provided on the thin oil supply pipeline 2 between the electronic pressure switch 22 and the electronically controlled flow meter 24 near the second oil port. The manual butterfly valve 25 and the mechanical throttle valve 26 are used to mechanically adjust the flow of the oil supply pipeline, and the purpose of their setting is to reserve the function of mechanically adjusting the flow, which has the advantage of adding a mechanical adjustment means, which can also realize the adjustment of the flow in the event of a failure of the electronic control system, or as a supplementary means of electronically adjusting the flow.

[0064] Further, if Figure 1 As shown, the first oil port is connected to the main oil inlet channel on the bearing seat of the upper support roller through a quick-change joint and a hose 27, and the second oil port is connected to the main oil inlet channel on the bearing seat of the lower support roller through a quick-change joint and a hose 27. The thin oil supply pipeline 2 is connected to the oil inlet channel portion 4 of the bearing seat through a quick-change joint and a hose 27, thereby realizing intelligent display and monitoring of the pressure and flow of the thin oil in the oil supply pipeline in each bearing seat, and can be adjusted, so that the bearing is in good working condition.

[0065] In addition, since the operating side is provided with a double-row tapered roller bearing 103, an electronically controlled throttle valve 21 is provided on the branch connected to the thin oil supply pipeline 2 to intelligently adjust the flow of this branch.

[0066] Further, if Figure 1As shown, the thin oil return pipeline 3 is provided with a temperature sensor 31. This temperature sensor 31 is traditionally designed to be directly installed on the return oil pipeline to observe the return oil temperature. Since the pipeline here is located in the rolling mill, the water mist environment is relatively serious, which will affect the service life of the components. Therefore, the temperature sensor 31 here is adjusted and upgraded, requiring the sensor end to be installed on the pipeline, with a protection level of IP68, and the display dial to realize data transmission with the sensor through a cable. The display dial is placed in a position that is easy to observe between the shield and the platform. At the same time, the display dial can be connected to the electrical system through a cable, so that the temperature of the pipeline return oil is displayed in real time in the electrical system. This pipeline is finally connected to the return oil channel 5 of the bearing seat through a quick-change joint and a hose. In this way, the monitoring and display of the thin oil return temperature can be realized simultaneously on the outside of the on-site shield and the platform (existing technology) and in the electrical system; according to the display result, the flow on the thin oil supply pipeline 2 is intelligently adjusted by the electronically controlled flowmeter to achieve temperature control (the branch pipeline of the double-row tapered roller bearing is adjusted by the electronically controlled throttle valve 21 to adjust the local flow), so that the bearing in the bearing seat is in a good working environment, effectively extending the bearing life and saving costs.

[0067] The thin oil lubrication pipeline is equipped with intelligent instruments, including an electronic pressure switch 22, an electronically controlled flow meter 24, an electronically controlled throttle valve 21 on the thin oil supply pipeline 2 and a temperature sensor 31 on the thin oil return pipeline 3. The sensor end of each intelligent instrument is inside the rolling mill, close to the bearing seat, which is convenient for reducing detection errors. In the harsh water mist environment, a high level of protection is required to ensure life and safety. The manual on-site observation display end and the electrical operation end must be separated, and the digital display dial is placed in a position that is easy to observe between the rolling mill platform and the passport for manual observation. At the same time, the dial is connected to the electrical system to realize intelligent query and adjustment of the electrical system.

[0068] The intelligent instruments installed in the thin oil lubrication pipeline can realize real-time monitoring of flow, temperature, pressure, etc., and adjust the flow through the electronically controlled flow meter and electronically controlled throttle valve based on these data; such a configuration can be observed with the naked eye on site and can also be viewed in the electrical system, providing a basis for intelligently adjusting the thin oil flow and pressure of the pipeline, ensuring the working efficiency of the bearings, and improving operational production efficiency.

[0069] Embodiment 1:

[0070] Taking the support roll of a 1250 cold rolling mill as an example, the lubrication channels in the bearing seats of the operating side bearing seat 106 and the transmission side bearing seat 109 are opened with the oil inlet channel 4 and the oil return channel 5 according to the above-mentioned principle. Figure 7 and 8 As shown; install the remaining parts according to Figure 2Installation is performed, including support rollers 101, four-row cylindrical roller bearings 102, double-row tapered roller bearings 103, operating side outer end cover 104 and its accessories, operating side inner end cover 105, operating side bearing seat 106, transmission side outer end cover 107 and its accessories, transmission side inner end cover 108, transmission side bearing seat 109, connecting rod 110, skeleton oil seal 111, water seal 112, operating side oil inlet flange 113, thrust bearing sealing flange 114, thrust bearing oil inlet flange 115, transmission side oil inlet flange 116, operating side oil return flange 117, transmission side oil return flange 118, and electronically controlled throttle valve 21,

[0071] Since there is an additional double-row tapered roller bearing 103 on the operating side, the thin oil supply pipeline 2 on the operating side should have a branch to the double-row tapered roller bearing 103; the two branches (one connected to the oil inlet channel 4 of the bearing seat, and the other connected to the oil inlet through-hole at the inner end of the outer end cover 104 on the operating side) need to adjust the branch flow distribution problem, so the pipeline branch design is equipped with an electronically controlled throttle valve 21 to facilitate intelligent adjustment and display of the flow here; an electronically controlled flow meter 24 is set on the thin oil supply pipeline to monitor and adjust the pipeline flow. ; At the same time, the outer end cover 104 and its accessories on the operating side are designed with two oil supply passages to the double-row tapered roller bearing 103 on the operating side, one of which is sealed with the thrust bearing sealing flange 114 during installation, and the other is connected to the bearing lubrication channel with the thrust bearing oil inlet flange 115; the purpose of this design is to facilitate the adjustment of the thin oil pipeline on site, so that the thin oil pipeline here can be connected and routed in close proximity no matter which side the oil supply pipeline of the four-row cylindrical roller bearing 102 is on, saving routing; the lubrication oil inlet of the double-row tapered roller bearing 103 on the operating side is shown in the figure Figure 3 shown.

[0072] Install the intelligent components of the oil lubrication pipeline, as shown in the attached Figure 1 As shown, the operating side and the transmission side of the upper support roller 119 and the lower support roller 120 are connected to the thin oil lubrication pipeline; and the connection with the oil inlet channel part 4 and the oil return channel part 5 of the bearing seat is achieved through the quick-change joint and the hose 27; the electronic display dial of the intelligent component is placed outside the passport and the platform at a position that is easy to observe, and the dial is connected to the electrical system at the same time, so that the intelligent component can be displayed in real time in the electrical system, providing a real-time basis for adjusting the thin oil supply of each branch, and the flow can be adjusted through the electronically controlled flow meter and the electronically controlled throttle valve, thereby ensuring that the bearing is in a good working environment and extending the bearing life.

[0073] As described above, the thin oil intelligent lubrication structure of the cold rolling mill support roll of the utility model has the following beneficial effects:

[0074] In the utility model, the lubrication channel portion of the bearing seat arranged in the bearing seat can meet the good lubrication of the bearing by the thin oil when the supporting roller runs at high speed, and can meet the circulation flow of the thin oil, effectively reducing the bearing temperature; the thin oil lubrication pipeline portion outside the bearing seat is equipped with an intelligent detection electronically controlled flow meter, an electronically controlled throttle valve, and a temperature sensor, so that the detection and adjustment of the thin oil are more intelligent and direct, and the intelligent management of the pipeline is realized through the feedback and control of the intelligent components, so that the on-site operators can better monitor the thin oil operation and then infer the bearing lubrication condition, and the purpose of regulation can be achieved by adjusting the lubrication amount of the thin oil, thereby ensuring the working efficiency of the bearing and improving the operating production efficiency; the design of the lubrication channel portion in the bearing seat and the intelligent pipeline setting can debug the most suitable working environment for the bearing, thereby greatly improving the working life of the bearing and improving the production efficiency; the single lubrication technology solution of the utility model can solve the needs of high-speed rolling mill operation and save production costs.

[0075] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any person skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A thin oil intelligent lubrication structure for cold rolling mill support rolls, characterized in that: It includes a bearing seat internal lubrication channel portion for the flow of lubricating thin oil in the bearing seat and a thin oil lubrication pipeline portion arranged outside the bearing seat, the thin oil lubrication pipeline portion includes a thin oil supply pipeline and a thin oil return pipeline; the bearing seat internal lubrication channel portion includes an oil inlet channel portion and an oil return channel portion, the oil inlet channel portion is connected to the thin oil supply pipeline, and the oil return channel portion is connected to the thin oil return pipeline; an electronically controlled flowmeter and an electronically controlled throttle valve for flow regulation are arranged on the thin oil supply pipeline, and a temperature sensor for monitoring and displaying the thin oil return temperature is arranged on the thin oil return pipeline, and the electronically controlled flowmeter and the electronically controlled throttle valve adjust the flow of the thin oil supply pipeline in real time through the thin oil return temperature monitored by the temperature sensor.

2. The thin oil intelligent lubrication structure for the cold rolling mill backup roll according to claim 1, characterized in that: The oil inlet channel portion includes a main oil inlet channel and a plurality of oil inlet lubrication channels annularly arranged on the inner wall of the bearing seat, and each of the oil inlet lubrication channels is connected to the main oil inlet channel through an oil inlet through hole.

3. The thin oil intelligent lubrication structure for the cold rolling mill backup roll according to claim 2, characterized in that: The end of the main oil inlet channel is connected to the thin oil supply pipeline through an oil inlet flange.

4. The thin oil intelligent lubrication structure for the backup roll of a cold rolling mill according to claim 2, characterized in that: The cross-sectional dimension of the oil inlet lubrication channel on the side close to the support roller is greater than the cross-sectional dimension of the oil inlet lubrication channel on the side away from the support roller.

5. The thin oil intelligent lubrication structure for the backup roll of a cold rolling mill according to claim 2, characterized in that: An inner oil return space is set between the inner end surface of the bearing seat and the inner end cover of the bearing seat, and an outer oil return space is set between the outer end surface of the bearing seat and the outer end cover of the bearing seat. The oil return channel portion includes a main oil return channel and an oil return cooling channel connected to the inner oil return space.

6. The thin oil intelligent lubrication structure for the backup roll of a cold rolling mill according to claim 5, characterized in that: The end of the main oil return channel is connected to the thin oil return pipeline through an oil return flange.

7. The thin oil intelligent lubrication structure for the backup roll of a cold rolling mill according to claim 5, characterized in that: The oil inlet passage portion further includes an end oil inlet through hole provided in the side wall of the outer end cover on the operating side, and the end oil inlet through hole is communicated with the thin oil supply pipeline; The oil return channel portion further includes an end oil return through hole arranged in the side wall of the outer end cover on the operating side, and the end oil return through hole is communicated with the outer oil return space.

8. The thin oil intelligent lubrication structure for the backup roll of a cold rolling mill according to claim 7, characterized in that: The thin oil supply pipeline is connected to the main oil inlet channel on the bearing seat of the upper support roller through the first oil port, and the thin oil supply pipeline is connected to the main oil inlet channel on the bearing seat of the lower support roller through the second oil port. A pressure measuring joint and a pressure gauge for mechanically measuring and calibrating the pressure of the thin oil supply pipeline are connected to the position of the thin oil supply pipeline near the first oil port; The thin oil supply pipeline is connected with an electronic pressure switch arranged between the frames, the electronic pressure switch is electrically connected with a remotely arranged electrical control system, and the electronic pressure switch displays the pressure of the oil supply pipeline through the electrical control system and on-site; An electronically controlled flow meter is provided on the thin oil supply pipeline between the electronic pressure switch and the first oil port, and an electronically controlled flow meter is provided on the thin oil supply pipeline between the electronic pressure switch and the second oil port; The thin oil supply pipeline is communicated with the end oil inlet through hole through the third oil port, and the electric-controlled throttle valve is arranged at the end oil inlet through hole.

9. The thin oil intelligent lubrication structure for the backup roll of a cold rolling mill according to claim 8, characterized in that: A mechanical throttle valve is arranged on the thin oil supply pipeline between the electronic pressure switch and the electronically controlled flow meter near the first oil port, and a manual butterfly valve is arranged on the thin oil supply pipeline between the electronic pressure switch and the electronically controlled flow meter near the second oil port.

10. The thin oil intelligent lubrication structure for the backup roll of a cold rolling mill according to claim 8, characterized in that: The first oil port is connected to the main oil inlet channel on the bearing seat of the upper support roller through a quick-change joint and a hose, and the second oil port is connected to the main oil inlet channel on the bearing seat of the lower support roller through a quick-change joint and a hose.

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