Lubricating oil circulating filtration system

Abstract

The invention provides a circulating filtration system for lubricating oil. The circulating filtration system comprises a circulating filtration device, the circulating filtering device comprises an oil tank, an oil pump device connected with the oil tank, an RS bypass filter connected to the oil pump device and a flow pipeline connected with the RS bypass filter. The flow pipeline is connected with the oil inlet end of the main shaft assembly, and the oil return end of the main shaft assembly is connected with the oil tank; the circulating filtering device further comprises a controller and an alarm device; when the RS bypass filter detects that the oil pollution value exceeds the standard, the controller controls the alarm device to be started; the controller controls the oil pump device and the main shaft assembly to stop running in a delayed mode when the oil flow amount detected by the flow pipeline is lower than the set range. According to the invention, the RS bypass filter is mounted, so that the occupied space in the circulating filtering device is reduced, and the layout is reasonable; and the RS bypass filter can efficiently filter impurities in the oil liquid, and meanwhile, automatic control of early warning and safe operation is provided, so that stable operation of equipment is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of centrifuge equipment lubrication, and in particular to a lubricating oil circulation and filtration system. Background Art

[0002] A centrifuge is a machine that uses centrifugal force to accelerate the separation of different materials. Centrifuges are widely used in industries such as chemical, petroleum, food, pharmaceutical, mineral processing, coal, water treatment, and shipping. The centrifuge's main principle is to separate solids and liquids at high speeds using the centrifugal force generated by the high-speed centrifugal drum. During operation, the centrifugal system undergoes high-intensity mechanical motion, and the bearings in the main shaft assembly are subjected to high speeds. To ensure long-term stable operation, most centrifuges utilize a lubrication system for circulating cooling and lubrication of the main shaft assembly.

[0003] Currently, the lubrication system of a centrifuge mainly consists of an oil tank, an oil suction pipe, an oil pump, an oil pump motor, a Y-type oil filter, a magnetic oil filter, a flow switch, and an oil return pipe. These components provide lubricating oil to the main shaft assembly of the equipment, lubricate and cool the bearings at both ends, and protect the bearings. In the centrifuge lubrication system, the use of two oil filters, the Y-type oil filter and the magnetic oil filter, takes up a large amount of space. During the lubrication process, the centrifuge equipment requires regular cleaning of the Y-type oil filter and the magnetic oil filter of the lubrication system, or replacement of the filter element. However, because centrifuge equipment operates in harsh production environments for long periods of time, its lubricating oil is easily contaminated, impurities accumulate, and the oil quality deteriorates rapidly, reducing the normal service life of the lubricant. This leads to abnormal wear of the bearings and main shaft at an early stage, and even burns out the bearings, increasing production costs and increasing the labor intensity of workers. Summary of the Invention

[0004] The present application provides a lubricating oil circulation filtration system with a reasonable overall layout, which can fully filter impurities such as carbon particles, metal wear particles, silicon molecules, water, etc. in the oil to ensure efficient lubrication and cooling effects.

[0005] The present application provides a lubricating oil circulation filtration system including a circulation filtration device for cooling and lubricating a spindle assembly; the circulation filtration device includes: an oil tank, an oil pump device connected to the oil tank, an RS bypass filter connected to the oil pump device, and a flow pipeline connected to the RS bypass filter; wherein,

[0006] The flow pipeline is connected to the oil inlet end of the main shaft assembly, and the oil return end of the main shaft assembly is connected to the oil tank;

[0007] The circulating filtering device also includes a controller and an alarm device; when the RS bypass filter detects that the oil contamination value exceeds the standard, the controller controls the alarm device to turn on; when the flow pipeline detects that the oil circulation volume is lower than the set range, the controller controls the oil pump device and the main shaft assembly to delay and stop operation.

[0008] In the present invention, by installing an RS bypass filter to replace the Y-type oil filter and the magnetic oil filter, the space occupied by the circulating filtration device is reduced and the layout is reasonable; and the RS bypass filter can efficiently filter out impurities in the oil, while providing early warning and automatic control of safe operation, ensuring the stable operation of the equipment.

[0009] In a specific embodiment, the oil tank is equipped with an oil suction pipe extending to the bottom of the oil, and the oil suction pipe is connected to the oil pump device. The oil suction pipe extends into the oil in the oil tank to complete the circulation pumping out of the oil.

[0010] In a specific embodiment, the oil pump device includes: an oil pump connected to the oil suction pipe, and an oil pump motor for driving the oil pump;

[0011] The oil pump end of the oil pump is connected to the RS bypass filter. The oil pumped out by the oil pump passes through the RS bypass filter to filter impurities, ensuring that the lubricating oil delivered to the main shaft assembly has a good cooling and lubricating effect.

[0012] In one embodiment, a filter element for filtering oil impurities is detachably fixedly attached to the RS bypass filter. The filter element removes impurities such as carbon particles, metal wear particles, silicon molecules, and water from the oil and can be replaced after a period of filtration.

[0013] In one specific embodiment, a sensor assembly for detecting oil properties is installed inside the RS bypass filter, located at the rear end of the filter element. This sensor assembly wirelessly communicates with the controller. This provides a data reference for oil sensing and ensures the output quality of the lubricant.

[0014] In one specific embodiment, the sensor assembly includes one or more of a metal particle sensor, a viscosity sensor, a dielectric constant sensor, a moisture sensor, a temperature sensor, and a multi-parameter oil sensor. These sensors detect impurities in the oil, and filter elements are promptly replaced if oil contamination exceeds specified limits.

[0015] In one specific embodiment, a flow sensor is installed within the flow pipe, and wireless data is transmitted between the flow sensor and the controller. The flow sensor detects the lubricating oil output and, if the flow rate is low, delays shutdown and refills the oil tank with lubricating oil to ensure stable operation of the equipment.

[0016] In a specific embodiment, the controller is a single chip microcomputer controller or a PLC controller, which has the purpose of receiving data and analyzing it to realize automatic control.

[0017] In a specific embodiment, the flow pipeline is connected to the oil inlet end of the main shaft assembly through an oil inlet pipe, so as to continuously and completely deliver lubricating oil to the main shaft assembly.

[0018] In a specific embodiment, the oil return end of the main shaft assembly is connected to the oil tank via an oil return pipe, and the oil tank is equipped with a breathable plug. During the oil return process, air is introduced through the breathable plug to ensure smooth oil return. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of a lubricating oil circulation and filtration system provided in an embodiment of the present application;

[0020] Figure 2 A top view of the lubricating oil circulation and filtration system provided in an embodiment of the present application.

[0021] Figure Number:

[0022] Oil tank-1, oil suction pipe-2, oil pump-3, oil pump motor-4, RS bypass filter-5, flow pipe-6, oil inlet pipe-7, oil return pipe-8, breather plug-9, spindle assembly-10, controller-11. DETAILED DESCRIPTION

[0023] In order to make the objectives, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0024] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in one or more embodiments of this specification should have the usual meanings understood by people with ordinary skills in the field to which this disclosure belongs. The "first", "second" and similar words used in one or more embodiments of this specification do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0025] In order to facilitate understanding of the lubricating oil circulation and filtration system provided by the embodiment of the present application, its application scenario is first explained. At present, the centrifuge lubrication system is mainly composed of an oil tank, an oil suction pipe, an oil pump, an oil pump motor, a Y-type oil filter, a magnetic oil filter, a flow switch, an oil return pipe, etc., which provide lubricating oil for the main shaft assembly of the equipment to lubricate and cool the bearings at both ends, thereby protecting the bearings. During the lubrication process, the centrifuge equipment needs to clean the Y-type oil filter and the magnetic oil filter of the lubrication system at regular intervals or replace the filter element. However, because the centrifuge equipment is in a harsh production environment for a long time, its lubricating oil is easily contaminated, impurities increase, and the oil quality decreases rapidly, which reduces the normal service life of the lubricating oil; resulting in early abnormal wear of the bearings and the main shaft, and even burning of the bearings, increasing production costs, and increasing the labor intensity of workers. In view of this, the present application provides a lubricating oil circulation and filtration system, which uses an RS bypass filter to replace the Y-type oil filter and the magnetic oil filter, reduces the installation space, and fully filters impurities such as carbon particles, metal wear particles, silicon molecules, and water in the oil to ensure efficient lubrication and cooling effects.

[0026] refer to Figure 1The lubricating oil circulation filtration system provided in the embodiment of the present application includes a circulation filtration device for cooling and lubricating the main shaft assembly 10. The circulation filtration device in the present application is mainly used in high-speed, high-intensity mechanical kinetic energy equipment such as centrifuges. In particular, for harsh working conditions such as coal and water separation in coal washing plants, the centrifuge uses centrifugal force to accelerate the separation of different materials that need to be separated. The centrifuge is affected by the coal washing working environment, and dust, coal powder, metal wear particles, moisture, etc. penetrate into the oil in the lubricating oil circulation filtration system of the centrifuge. During the circulation filtration process, if the oil is not filtered sufficiently, it will affect the damage of the main shaft assembly 10. At the same time, the lubricating oil circulation filtration system of the centrifuge in the coal washing plant generally uses two types of filters, Y-type oil filters and magnetic oil filters, to filter the oil, which takes up a large space. To this end, in the embodiment of the present application, by changing the layout distribution in the circulation filtration device, the Y-type oil filter and the magnetic oil filter are replaced with the RS bypass filter 5 that takes up less space. In the centrifuge's lubricating oil circulation and filtration system, the RS bypass filter 5's filter element replacement interval has been extended from 500 hours to 1000 hours. This significantly reduces the frequency of filter element or lubricating oil replacements for centrifuges operating in harsh environments such as coal washeries and chemical plants. This reduces worker workload, extends lubricating oil life, reduces wear on key components, and increases the lifespan of equipment accessories. Furthermore, the RS bypass filter 5's cost is lower than that of Y-type and magnetic oil filters, effectively reducing the manufacturing cost of the lubricating oil circulation and filtration system.

[0027] Specifically, the circulating filtration device includes an oil tank 1; oil tank 1 serves as the primary lubricating oil storage device in this application. It is used to pump the lubricating oil from tank 1 into the RS bypass filter 5 for filtering impurities. After filtering out impurities, the high-quality lubricating oil enters the main shaft assembly 10 to cool and lubricate the bearings, ensuring stable operation of the equipment. Simultaneously, the oil used to cool and lubricate the bearings in the main shaft assembly 10 flows back into oil tank 1 for further pumping and impurity filtering, forming a complete circulating filtration system.

[0028] Combine Figure 1 and Figure 2As shown in , in the embodiment of the present application, when the oil in the oil tank 1 is specifically pumped out, an oil pump 3 device is used to connect the oil suction pipe 2 and extend to the bottom of the oil in the oil tank 1. Specifically, the interior of the oil tank 1 is equipped with an oil suction pipe 2 extending to the bottom of the oil, and the oil suction pipe 2 is connected to the oil pump 3 device. The oil suction pipe 2 extends to the inside of the oil in the oil tank 1 to complete the circulation pumping of the oil. The oil pump 3 device includes: an oil pump 3 connected to the oil suction pipe 2, and an oil pump motor 4 for driving the oil pump 3; the oil pumping end of the oil pump 3 is connected to the RS bypass filter 5. The oil pumped out by the oil pump 3 passes through the RS bypass filter 5 to filter impurities, ensuring that the lubricating oil delivered to the main shaft assembly 10 has a good cooling and lubricating effect.

[0029] The RS bypass filter 5 in the present application is internally detachably fixed with a filter element for filtering impurities in the oil. Impurities in the oil, such as carbon particles, metal wear particles, silicon molecules, water and other impurities are filtered out by the filter element, and can be replaced after filtering for a period of time. When specifically detecting whether the filter element meets the filtering standards, the present application uses multiple sensors to sense and detect impurities such as metal wear particles, water, and carbon particles in the oil. The RS bypass filter 5 is internally and located at the rear end of the filter element to be equipped with a sensor component for detecting the characteristics of the oil, and the sensor component and the controller 11 transmit data wirelessly. It has a data reference for sensing and detecting the oil to ensure the output quality of the lubricating oil. The impurity parameters in the oil can be obtained in time through the sensor component. When the parameters exceed the standard, the controller 11 controls the alarm device to turn on the alarm, prompting the staff to replace the filter element or replace the oil in the oil tank 1 in time.

[0030] The sensing component includes any one or more of the following sensors: a metal particle sensor, a viscosity sensor, a dielectric constant sensor, a moisture sensor, a temperature sensor, an oil multi-parameter composite sensor, etc. Multiple sensors detect impurities in the oil, and the filter element is replaced in time after the oil pollution value exceeds the standard. It should be specifically explained that the controller 11 in this application is a single-chip microcomputer controller or a PLC controller. It has the purpose of receiving sensor data and realizing automatic control after analysis. When multiple sensors detect the properties of the oil after filtering by the RS bypass filter 5, the sensor transmits the detected value to the controller 11 for comparison and analysis. After determining that the oil pollution value exceeds the standard, the control alarm device is turned on. This is a commonly used technical method in the existing control field and will not be elaborated on here.

[0031] The circulating filtration device also includes a flow line 6 connected to the RS bypass filter 5. A flow sensor is installed within the flow line 6, which wirelessly communicates with the controller 11. The lubricating oil output is detected. If the flow rate is low, the system is shut down and lubricating oil is refilled into the oil tank 1 to ensure stable operation. For example, when the flow sensor detects an oil flow rate of 1.5-2.5 m / s, the system is considered to have a normal circulation flow rate. When the flow sensor detects an oil flow rate below 1.5 m / s, the controller 11 determines that the oil in the oil tank 1 is missing. At this point, the controller 11 controls the oil pump motor 4 and the centrifuge main unit to shut down after a delay of 5-10 seconds. This delayed shutdown prevents damage to the bearings caused by an emergency stop and protects the main shaft bearings. Specifically, after receiving the flow rate value from the flow sensor, the controller 11 controls the oil pump motor 4 and the centrifuge main unit to shut down. This is a common technical method in the field of control and will not be elaborated on here.

[0032] To form a complete circulation system, flow line 6 is connected to the oil inlet of the spindle assembly 10 via oil inlet pipe 7. This ensures continuous and complete delivery of lubricating oil to the spindle assembly 10. The oil return line of the spindle assembly 10 is connected to the oil tank 1 via oil return pipe 8, and the oil tank 1 is equipped with a breather plug 9. Air is introduced through the breather plug 9 during the oil return process, ensuring smooth oil return.

[0033] In the present invention, by installing the RS bypass filter 5, the Y-type oil filter and the magnetic oil filter are replaced by the RS bypass filter, so that the space occupied by the circulating filtration device is reduced and the layout is reasonable; and the RS bypass filter 5 can efficiently filter out impurities in the oil, and for scenes with relatively harsh working environments, the stable operation of the centrifuge equipment is ensured, and at the same time, early warning and automatic control of safe operation are provided, thereby reducing the workload of workers, extending the service life of lubricating oil, reducing the wear of major components, and increasing the service life of equipment accessories.

[0034] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples. Based on the concept of the present disclosure, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present specification as above, which are not provided in detail for the sake of simplicity.

[0035] In addition, to simplify the description and discussion, and so as not to obscure one or more embodiments of the present specification, known power / ground connections of other components may or may not be shown in the provided figures. In addition, devices may be shown in the form of block diagrams in order to avoid obscuring one or more embodiments of the present specification, and this also takes into account the fact that the details of the implementation of these block diagram devices are highly dependent on the platform on which one or more embodiments of the present specification will be implemented (i.e., these details should be fully within the purview of those skilled in the art). Where specific details are set forth to describe exemplary embodiments of the present disclosure, it will be apparent to those skilled in the art that one or more embodiments of the present specification may be implemented without these specific details or with variations in these specific details. Accordingly, these descriptions should be considered illustrative and not restrictive.

[0036] The one or more embodiments of this specification are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of this specification shall be included within the scope of protection of this disclosure.

Claims

1. A lubricating oil circulation and filtration system, comprising a circulation and filtration device for cooling and lubricating a spindle assembly; characterized in that: The circulating filter device comprises: an oil tank, an oil pump device connected to the oil tank, an RS bypass filter connected to the oil pump device, and a flow pipeline connected to the RS bypass filter; wherein, The flow pipeline is connected to the oil inlet end of the main shaft assembly, and the oil return end of the main shaft assembly is connected to the oil tank; The circulation filtering device also includes a controller and an alarm device; when the RS bypass filter detects that the oil contamination value exceeds the standard, the controller controls the alarm device to turn on; when the flow pipeline detects that the oil flow rate is lower than the set range, the controller controls the oil pump device and the main shaft assembly to delay stopping operation.

2. The lubricating oil circulation and filtration system according to claim 1, characterized in that: The oil tank is internally equipped with an oil suction pipe extending to the bottom of the oil, and the oil suction pipe is connected to the oil pump device.

3. The lubricating oil circulation and filtration system according to claim 2, characterized in that: The oil pump device comprises: an oil pump connected to the oil suction pipe, and an oil pump motor for driving the oil pump; The oil pumping end of the oil pump is connected to the RS bypass filter.

4. The lubricating oil circulation and filtration system according to claim 3, characterized in that: The RS bypass filter has a filter element fixedly connected inside in a detachable manner for filtering impurities in the oil.

5. The lubricating oil circulation and filtration system according to claim 4, characterized in that: A sensor component for detecting oil characteristics is installed inside the RS bypass filter and at the filtering rear end of the filter element. The sensor component transmits data wirelessly with the controller.

6. The lubricating oil circulation and filtration system according to claim 5, characterized in that: The sensor component includes: any one or more of a metal particle sensor, a viscosity sensor, a dielectric constant sensor, a moisture sensor, a temperature sensor, and an oil multi-parameter composite sensor.

7. The lubricating oil circulation and filtration system according to claim 1, characterized in that: A flow sensor is installed inside the flow pipeline, and the flow sensor transmits data wirelessly with the controller.

8. The lubricating oil circulation and filtering system according to claim 1, characterized in that: The controller is a single chip microcomputer controller or a PLC controller.

9. The lubricating oil circulation and filtering system according to claim 1, characterized in that: The flow pipeline is connected to the oil inlet end of the main shaft assembly through an oil inlet pipe.

10. The lubricating oil circulation and filtering system according to claim 9, characterized in that: The oil return end of the main shaft assembly is connected to the oil tank through an oil return pipe, and a breathable plug is installed on the oil tank.

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