Lubricating oil cleaning device for a reduction gear

Abstract

This invention relates to the technical field of gearbox lubricating oil protection equipment, and more particularly to a lubricating oil cleaning device for gearboxes, comprising: a cleaning chamber installed on the outer layer of the gearbox oil window; a camera installed on the top of the cleaning chamber for capturing internal images of the cleaning chamber; and an impurity analysis processor connected to both the cleaning chamber and the camera for analyzing cleaning parameters from the internal images and adjusting the cleaning state of the cleaning chamber based on these parameters. By installing a cleaning chamber at the oil window, the cleaning probe at the lower end of the adsorption rod inside the cleaning chamber can effectively adsorb iron filings in the lubricating oil, and the movable filter layer at the bottom of the oil receiving box can effectively clean the remaining impurities besides iron filings. This invention improves structural convenience while effectively enhancing the cleaning ability of the lubricating oil, thereby extending the service life of the gearbox.

Description

Technical Field

[0001] This invention relates to the technical field of gear reducer lubricating oil protection equipment, and more particularly to a lubricating oil cleaning device for gear reducers. Background Technology

[0002] A speed reducer is an independent, enclosed transmission device between the prime mover and the driven machine, used to reduce speed and increase torque. During operation, the friction between the gears generates fine iron filings, which flow into the bearings or gears, accelerating the wear of rotating parts and causing premature equipment failure, thus increasing production costs. Therefore, cleaning the iron filings generated by the speed reducer is crucial.

[0003] Chinese Patent Publication No. CN111380693B discloses an improved structure for a drive axle housing, including a housing, a rear cover, a main reducer assembly within the housing, and lubricating oil flowing within the housing. A cavity is provided in the rear cover, and an oil passage groove is provided on the side wall of the cavity adjacent to the main reducer assembly. This invention allows non-ferrous impurities and iron filings agitated by gears in the drive axle to splash into the cavity along with the lubricating oil, where they settle due to gravity. This more effectively cleans the lubricating oil, reducing damage to components within the housing, thereby increasing the service life of the drive axle and lowering axle failure rate and maintenance costs.

[0004] However, the aforementioned structure uses a bridge housing to filter impurities in the lubricating oil in the reducer, increasing the structural complexity of the reducer, raising manufacturing costs, increasing the sealing area of ​​the housing, and increasing the probability of lubricating oil leakage. At the same time, removing the filtered impurities is more difficult.

[0005] Chinese Patent Publication No. CN203442093U discloses a magnetic plug for a gearbox, comprising an oil plug body and a permanent magnet disposed within the oil plug body. The oil plug body has a plug head and a connecting rod. One end of the connecting rod is provided with a chamber, and the other end of the connecting rod is fixedly connected to the plug head. The permanent magnet is disposed within the chamber. This utility model makes it less likely for the permanent magnet to fall off during machine operation, and the permanent magnet is more effective at adsorbing impurities such as iron filings. It reduces the wear of rotating parts, extends the service life of the equipment, and effectively reduces production costs. In addition, this utility model has good sealing performance, is easy to disassemble and install, and can not only adsorb impurities such as iron filings, but also store the adsorbed impurities for later disassembly and cleaning, making it more practical.

[0006] However, the aforementioned device uses a magnetic adsorption structure installed inside the oil drain hole of the reducer to attract iron filings from the lubricating oil. Removing the iron filings requires draining all the lubricating oil from the gearbox. Furthermore, the amount of iron filings attracted cannot be checked at any time. Summary of the Invention

[0007] Therefore, the present invention provides a lubricating oil cleaning device for speed reducers to overcome the problems of existing technologies that cannot monitor the amount of iron filings and have complex structures.

[0008] To achieve the above objectives, the present invention provides a lubricating oil cleaning device for a speed reducer, comprising:

[0009] The cleaning chamber is installed on the outer layer of the gearbox where the oil window is located.

[0010] A camera, mounted on the top of the cleaning chamber, is used to capture images of the interior of the cleaning chamber;

[0011] An impurity analysis processor, which is connected to the cleaning chamber and the camera respectively, is used to analyze the cleaning parameters of the internal image and adjust the cleaning status of the cleaning chamber according to the cleaning parameters;

[0012] The cleaning parameters include oil level, number of iron filings, and characteristics of impurities;

[0013] The cleaning status includes the cleaning height and cleaning method of the cleaning chamber;

[0014] The impurity analysis processor adjusts the cleaning height of the cleaning chamber according to the oil level and adjusts the cleaning method of the cleaning chamber according to the characteristics of the impurities.

[0015] The cleaning height is the distance between the cleaning probe inside the cleaning chamber and the bottom surface of the cleaning chamber. The cleaning method includes using a magnetic head to adsorb iron filings and using a filter screen to filter out other impurities besides iron filings.

[0016] Furthermore, the cleaning chamber includes an oil window, connecting bolts, a baffle plate, an oil receiving box, an adsorption rod, a cleaning probe, and a movable filter layer;

[0017] The guide plate is installed inside the gearbox. The oil receiving box is connected to the oil window hole by connecting bolts. The adsorption rod is threaded into the threaded hole at the upper end of the oil receiving box and extends into the oil receiving box. The cleaning probe is installed at the lower end of the adsorption rod. There is a gap between the cleaning probe and the bottom of the oil receiving box, and the gap can be adjusted by adjusting the height of the cleaning probe. The movable filter layer is set on the bottom surface of the oil receiving box and can move up and down along the direction of gravity of the oil receiving box.

[0018] The guide plate is installed on the upper end of the oil window hole inside the gearbox. When the gearbox is in operation, the guide plate guides the lubricating oil through the oil window hole into the oil receiving box.

[0019] Furthermore, the movable filter layer is equipped with a filtering action and an oil draining action;

[0020] The movable filter layer is provided with a plurality of filter holes;

[0021] The filtering action involves the moving filter layer opening each filter hole and moving upward from the bottom of the oil receiving box to filter out impurities in the lubricating oil, except for iron filings.

[0022] The oil draining action involves moving the filter layer to close each filter hole and moving it upwards from the bottom of the oil receiving box to drain the filtered lubricating oil through the oil window hole.

[0023] Furthermore, the cleaning probe is equipped with a magnetic probe mode and an adsorption probe mode;

[0024] The magnetic probe mode is such that the cleaning probe extends from the magnetic head to attract iron filings inside the oil collection box;

[0025] The adsorption probe mode is characterized by the cleaning probe extending from the suction head and performing a filtration action on the moving filter layer to absorb impurities on the moving filter layer.

[0026] Furthermore, the impurity analysis processor analyzes the number of iron filings and the oil level in the oil receiving box based on the internal image, and adjusts the cleaning height according to the number of iron filings and the oil level.

[0027] The cleaning height is positively correlated with the oil level and negatively correlated with the number of iron filings, and the cleaning height is greater than the oil level.

[0028] Furthermore, when the internal image is in a preset impurity state, the impurity analysis processor determines that the cleaning probe adopts the adsorption probe mode;

[0029] The preset impurity state is satisfied when the gearbox is in a non-working state and the impurity characteristics of the image inside the cleaning chamber are conventional impurity characteristics and the impurity particle size is smaller than the preset particle size.

[0030] The impurity characteristics are the color and shape characteristics of all impurities that may appear during the operation of the gearbox, stored in the impurity analysis processor, and the conventional impurity characteristics are the color and shape characteristics of several impurities corresponding to the normal operating state of the gearbox.

[0031] Furthermore, the impurity analysis processor determines that the gearbox is malfunctioning and issues an alarm when the internal image shows a faulty impurity state or the impurity particle size is larger than a preset particle size;

[0032] The fault impurity state satisfies the condition that the gearbox is in operation and the impurity characteristic is a fault impurity characteristic.

[0033] The fault impurity characteristics are the color and shape characteristics of several impurities corresponding to the gearbox malfunction.

[0034] Furthermore, after performing a preset number of filtration and oil drainage operations, the impurity analysis processor executes a self-cleaning strategy for the cleaning chamber.

[0035] The preset number of times is negatively correlated with the power of the gearbox, and the self-cleaning strategy of the cleaning chamber is to clean the magnetic suction head, the moving filter layer and the inner wall of the cleaning chamber.

[0036] Furthermore, the outer shell of the cleaning chamber is made of a transparent material coated with an oleophobic coating.

[0037] Furthermore, the magnetic suction head is any one of a magnet, a fluid magnetic bead, or an electromagnet.

[0038] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting a cleaning chamber in the oil window, during the operation of the gearbox, the guide plate of the present invention guides the lubricating oil carried by the gears into the oil receiving box through the oil window hole of the gearbox. The cleaning probe at the lower end of the adsorption rod in the oil receiving box can effectively adsorb iron filings in the lubricating oil, and the movable filter layer at the bottom of the oil receiving box can effectively clean the remaining impurities except for iron filings. While improving the structural convenience, it effectively improves the cleaning ability of the lubricating oil, thereby improving the oil quality, eliminating the harm of impurities in the lubricating oil to the transmission equipment, and thus improving the service life of the gearbox.

[0039] Furthermore, the outer shell of the cleaning chamber of the present invention is a transparent material coated with an oleophobic coating, which allows for direct observation of the internal condition of the cleaning chamber and the quality of the lubricating oil. This facilitates quick and accurate detection of problems and timely maintenance when malfunctions occur. In addition, the oleophobic coating can effectively reduce lubricating oil residue, thereby reducing wear and further improving the service life of the gearbox.

[0040] Furthermore, the oil receiving box of the present invention is installed at the oil window hole of the gearbox. The oil level of the gearbox during operation should reach the lower end of the oil window. In addition, the upper threaded hole of the present invention is higher than the oil window hole, so there is no need to drain the lubricating oil when removing iron filings, which improves the convenience of cleaning and further improves the service life of the gearbox.

[0041] Furthermore, the cleaning chamber of the present invention is installed outside the oil window of the gearbox without increasing the structure of the gearbox. It cleans the lubricating oil inside the gearbox without increasing the manufacturing difficulty of the gearbox, thereby improving the convenience of cleaning and further improving the service life of the gearbox.

[0042] Furthermore, the cleaning probe of this invention is installed at the lower end of the adsorption rod, leaving a certain gap between it and the bottom of the oil receiving box. The magnetic head does not contact the gearbox and will not magnetize the gearbox, thus further improving the service life of the gearbox.

[0043] Furthermore, the present invention improves the ease of cleaning and extends the service life of the gearbox by moving the filter layer up and down to perform filtration and oil discharge operations.

[0044] Furthermore, the cleaning probe of this invention is equipped with a magnetic probe mode and an adsorption probe mode, which can effectively clean iron filings and other impurities besides iron filings. While improving the convenience of the structure, it also effectively improves the cleaning ability of lubricating oil, thereby further improving the service life of the gearbox.

[0045] Furthermore, the impurity analysis processor of the present invention analyzes the number of iron filings and the oil level in the oil receiving box based on the internal image, and adjusts the cleaning height according to the number of iron filings and the oil level. The more iron filings there are, the greater the magnetic force required, and the closer the cleaning probe is to the oil surface, which further improves the service life of the gearbox.

[0046] Furthermore, by installing a camera to capture internal images of the cleaning chamber, and having the impurity analysis processor analyze the impurity characteristics in the internal images, the present invention can effectively alarm the gearbox malfunction status, thereby further improving the service life of the gearbox.

[0047] Furthermore, after performing a preset number of filtration and oil discharge operations, the impurity analysis processor of the present invention executes a self-cleaning strategy for the cleaning chamber. During the cleaning process, impurities may remain. The self-cleaning strategy effectively cleans the cleaning chamber itself, further improving the service life of the gearbox. Attached Figure Description

[0048] Figure 1 This is a structural block diagram of the lubricating oil cleaning device for the speed reducer of the present invention;

[0049] Figure 2 This is a cross-sectional view of the cleaning chamber according to an embodiment of the present invention;

[0050] Figure 3 This is a schematic diagram of the appearance of the cleaning chamber according to an embodiment of the present invention;

[0051] Figure 4 This is a top view of the cleaning chamber according to an embodiment of the present invention;

[0052] Figure 5 This is a structural diagram of the adsorption rod according to an embodiment of the present invention;

[0053] Figure 6 This is a structural diagram of the oil receiving box according to an embodiment of the present invention;

[0054] The components include: 1. Oil window; 2. Connecting bolts; 3. Guide plate; 4. Adsorption rod; 5. Oil receiving box; 6. Cleaning probe; 7. Moving filter layer. Detailed Implementation

[0055] To make the objectives and advantages of the present invention clearer, the present invention will be further described below with reference to embodiments; it should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0056] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0057] It should be noted that in the description of this invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0058] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0059] Please see Figure 1 The diagram shown is a structural block diagram of the lubricating oil cleaning device for a speed reducer according to the present invention. The lubricating oil cleaning device for a speed reducer includes:

[0060] The cleaning chamber is installed on the outer layer of the gearbox where the oil window is located.

[0061] A camera, mounted on top of the cleaning chamber, is used to capture images of the interior of the cleaning chamber;

[0062] Preferably, the camera is mounted on the top surface of the outer side of the cleaning chamber;

[0063] An impurity analysis processor, which is connected to the cleaning chamber and the camera respectively, is used to analyze the cleaning parameters of the internal image and adjust the cleaning status of the cleaning chamber according to the cleaning parameters.

[0064] Preferably, the impurity analyzer connects to the camera via a wireless network and transmits data, and the cleaning chamber is equipped with a PLC to allow the impurity analyzer to control it.

[0065] The cleaning parameters include oil level, number of iron filings, and characteristics of impurities.

[0066] The cleanliness status includes the cleaning height and cleaning method of the cleaning chamber;

[0067] The impurity analysis processor adjusts the cleaning height of the cleaning chamber based on the oil level and adjusts the cleaning method of the cleaning chamber based on the characteristics of the impurities.

[0068] The cleaning height is the distance between the cleaning probe inside the cleaning chamber and the bottom surface of the cleaning chamber. The cleaning methods include using a magnetic head to adsorb iron filings and using a filter screen to filter out other impurities besides iron filings.

[0069] This invention aims to remove iron filings and impurities from the lubricating oil of a speed reducer, thereby improving oil quality and eliminating the harmful effects of iron filings on transmission equipment. By incorporating a cleaning chamber in the oil window, during gearbox operation, a guide plate guides the lubricating oil carried by the gears through the oil window into the oil receiving box. The cleaning probe at the lower end of the adsorption rod inside the receiving box effectively adsorbs iron filings from the lubricating oil, while the movable filter layer at the bottom of the receiving box effectively cleans away other impurities besides iron filings. This invention improves both structural convenience and lubricating oil cleaning capabilities, thus enhancing oil quality, eliminating the harmful effects of impurities in the lubricating oil on transmission equipment, and ultimately extending the service life of the speed reducer.

[0070] Optionally, cleaning ability is the percentage of the amount of impurities reduced after cleaning relative to the total amount of the original impurities.

[0071] Specifically, the cleaning chamber includes an oil window, connecting bolts, a baffle plate, an oil receiving box, an adsorption rod, a cleaning probe, and a movable filter layer;

[0072] The guide plate is installed inside the gearbox. The oil receiving box and the oil window are connected by connecting bolts. The adsorption rod is threaded into the threaded hole at the top of the oil receiving box. The adsorption rod extends into the oil receiving box. The cleaning probe is installed at the lower end of the adsorption rod. There is a gap between the cleaning probe and the bottom of the oil receiving box. The gap can be adjusted by adjusting the height of the cleaning probe. The movable filter layer is set on the bottom surface of the oil receiving box and can move up and down along the direction of gravity of the oil receiving box.

[0073] The guide plate is installed at the upper end of the oil window hole inside the gearbox. When the gearbox is in operation, the guide plate guides the lubricating oil through the oil window hole into the oil receiving box.

[0074] Example 1, please refer to Figure 2-6The figures shown are a cross-sectional view of the cleaning chamber according to an embodiment of the present invention, a schematic diagram of the appearance of the cleaning chamber according to an embodiment of the present invention, a top view of the cleaning chamber according to an embodiment of the present invention, a structural diagram of the adsorption rod according to an embodiment of the present invention, and a structural diagram of the oil receiving box according to an embodiment of the present invention. Preferably, the cleaning chamber includes an oil window 1, a connecting bolt 2, a guide plate 3, an oil receiving box 5, an adsorption rod 4, a cleaning probe 6, and a movable filter layer 7. The guide plate 3 is installed inside the gearbox, at the upper end of the oil window. The oil receiving box 5 is connected to the oil window 1 by the connecting bolt 2. The adsorption rod 4 is threadedly connected to the threaded hole at the upper end of the oil receiving box 5, and the adsorption rod 4 extends into the oil receiving box 5. The cleaning probe 6 is installed at the lower end of the adsorption rod 4, leaving a certain gap with the bottom of the oil receiving box 5. The guide plate 3 is located at the upper end of the oil window 1 inside the gearbox, guiding the oil flow carried by the gear into the oil window 1. The oil receiving box 5 is sealed to the gearbox oil window 1 with a transparent material by the connecting bolt 2, guiding the lubricating oil into the oil receiving box 5. The adsorption rod 4 is threadedly connected to the upper end of the oil receiving box 5. The adsorption rod extends into the lower part of the oil receiving box 5. The cleaning probe 6 is installed at the lower end of the adsorption rod 4, leaving a certain gap between it and the bottom of the oil receiving box 5, to adsorb iron filings in the lubricating oil entering the oil receiving box. The cleaning probe does not contact the box body and will not magnetize the box body. The movable filter layer 7 is installed on the bottom surface of the oil receiving box and is connected to the bottom surface of the oil receiving box through several movable telescopic rods. The telescopic rods drive the movable filter layer to move.

[0075] Understandable Figures 3-6 Each component can be based on the structure in Figure 2 Find the corresponding location.

[0076] The oil collection box is installed at the oil window of the gearbox. During operation, the oil level of the gearbox should reach the lower end of the oil window. Furthermore, the threaded hole at the upper end of this device is higher than the oil window, so there is no need to drain the lubricating oil when removing metal filings, which improves the convenience of cleaning and further extends the service life of the gearbox.

[0077] The cleaning chamber is installed outside the gearbox oil window without adding to the gearbox structure. It cleans the lubricating oil inside the gearbox without increasing the difficulty of gearbox manufacturing, improving the convenience of cleaning and further extending the service life of the gearbox.

[0078] The cleaning probe is installed at the lower end of the adsorption rod, leaving a certain gap between it and the bottom of the oil receiving box. The magnetic head does not contact the gearbox and will not magnetize the gearbox, thus further improving the service life of the gearbox.

[0079] Specifically, the moving filter layer is equipped with both filtration and oil discharge functions;

[0080] The movable filter layer is provided with several filter holes;

[0081] The filtration action involves moving the filter layer to open each filter hole and moving it upwards from the bottom of the oil receiving box to filter out impurities in the lubricating oil, except for iron filings.

[0082] The oil draining action involves moving the filter layer to close each filter hole and moving it upwards from the bottom of the oil receiving box to drain the filtered lubricating oil through the oil window hole.

[0083] The filter layer moves up and down to perform filtration and oil drainage, which improves the ease of cleaning and further extends the service life of the gearbox.

[0084] Preferably, the movable filter layer includes a filter layer and a cover layer. When the filtering action is performed, the cover layer opens, and when the oil draining action is performed, the cover layer covers the filter layer.

[0085] Specifically, the cleaning probe has a magnetic probe mode and an adsorption probe mode;

[0086] In the magnetic probe mode, the cleaning probe extends its magnetic head to attract iron filings from the oil collection box.

[0087] In the adsorption probe mode, the cleaning probe extends from the suction head and performs a filtration action on the moving filter layer, absorbing impurities on the moving filter layer.

[0088] The cleaning probe has both magnetic probe mode and adsorption probe mode, which can effectively clean iron filings and other impurities. While improving structural convenience, it also effectively improves the cleaning ability of lubricating oil, further extending the service life of the gearbox.

[0089] Optionally, the cleaning probe is equipped with a magnetic suction chamber and a dust suction chamber. The openings of the chambers can be opened or closed according to control commands. The magnetic suction chamber contains a magnetic suction head, and the dust suction chamber contains a dust suction head. They are extended during operation, and the impurities adsorbed by the magnetic suction head and the dust suction head are discharged through the dust removal channel inside the adsorption rod.

[0090] Specifically, the impurity analysis processor analyzes the number of iron filings and the oil level in the oil collection box based on internal images and adjusts the cleaning height accordingly.

[0091] Among them, the cleaning height is positively correlated with the oil level and negatively correlated with the amount of iron filings, and the cleaning height is greater than the oil level.

[0092] The impurity analysis processor analyzes the amount of iron filings and the oil level in the oil collection box based on internal images, and adjusts the cleaning height accordingly. The more iron filings there are, the greater the magnetic force required, and the closer the cleaning probe is to the oil surface, further improving the service life of the gearbox.

[0093] Specifically, when the internal image is in a preset impurity state, the impurity analysis processor determines that the cleaning probe should adopt the adsorption probe mode.

[0094] The preset impurity state is met when the gearbox is in a non-working state and the impurity characteristics in the image inside the cleaning chamber are conventional impurity characteristics and the impurity particle size is smaller than the preset particle size.

[0095] It is understandable that the non-working state is the state in which the reducer gears stop rotating; the characteristics of impurities are determined based on the failures and impurities generated by the failures within the past 10 years of the reducer's history.

[0096] Among them, the impurity characteristics are the color and shape characteristics of all impurities that may appear during the operation of the gearbox, stored in the impurity analysis processor, while the regular impurity characteristics are the color and shape characteristics of several impurities corresponding to the normal operating state of the gearbox.

[0097] Specifically, the impurity analysis processor determines that the gearbox is malfunctioning and alarms when the internal image shows a faulty impurity state or the impurity particle size is larger than the preset particle size.

[0098] The fault impurity status meets the condition that the gearbox is in operation and the impurity characteristics are those of a fault impurity.

[0099] The characteristics of fault impurities are the color and shape characteristics of several impurities corresponding to the gearbox malfunction.

[0100] By installing a camera to capture images of the interior of the cleaning chamber, the impurity analysis processor analyzes the impurity characteristics in the internal images, which can effectively alarm the gearbox malfunction and further improve the service life of the gearbox.

[0101] Optionally, fault impurity characteristics include the size and material color of debris corresponding to different wear levels of the reducer, as well as the material color of the housing and the material color of the internal components.

[0102] Specifically, after performing a preset number of filtration and oil removal operations, the impurity analysis processor executes a self-cleaning strategy for the cleaning chamber.

[0103] The preset number of cycles is negatively correlated with the gearbox power. The self-cleaning strategy of the cleaning chamber is to clean the magnetic suction head, moving filter layer and inner wall of the cleaning chamber.

[0104] After performing a preset number of filtration and oil drainage operations, the impurity analyzer executes a self-cleaning strategy for the cleaning chamber. Impurities may remain during the cleaning process, and the self-cleaning strategy effectively cleans the cleaning chamber itself, further improving the service life of the gearbox.

[0105] Specifically, the outer shell of the cleaning chamber is made of a transparent material coated with an oleophobic coating.

[0106] The outer shell of the cleaning chamber is made of a transparent material coated with an oleophobic coating, which allows for direct observation of the internal condition of the cleaning chamber and the quality of the lubricating oil. This facilitates quick and accurate detection of problems and timely maintenance in case of malfunctions. Furthermore, the oleophobic coating effectively reduces lubricating oil residue, thereby reducing wear and further improving the service life of the gearbox.

[0107] Specifically, the magnetic head can be any one of a magnet, a fluid magnetic bead, or an electromagnet.

[0108] Example 1: In an oil production project at an oilfield in a certain province, the lubricating oil in the pumping unit gearbox had a service life of 6 months. Field data showed that the oilfield had over 60,000 pumping wells. Due to mechanical impurities in the lubricating oil causing accelerated wear of transmission components, the average service life of both the lubricating oil and transmission components was reduced by 20%. Using the lubricating oil cleaning device for the gearbox of this invention increased the service life of both the lubricating oil and transmission components by more than 10%. The device uses 200 liters of lubricating oil per pumping unit.

[0109] Based on an average price of 15 yuan / liter for industrial closed gear oil, the savings in lubricating oil costs would be: 15 yuan × (200 × 10%) × 60,000 = 18 million yuan.

[0110] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

[0111] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A lubricating oil cleaning device for a speed reducer, characterized in that, include: The cleaning chamber is installed on the outer layer of the gearbox oil window; A camera, mounted on the top of the cleaning chamber, is used to capture images of the interior of the cleaning chamber; An impurity analysis processor, which is connected to the cleaning chamber and the camera respectively, is used to analyze the cleaning parameters of the internal image and adjust the cleaning status of the cleaning chamber according to the cleaning parameters; The cleaning parameters include oil level, number of iron filings, and characteristics of impurities. The cleaning status includes the cleaning height of the cleaning chamber and the cleaning method; The impurity analysis processor adjusts the cleaning height of the cleaning chamber according to the oil level and adjusts the cleaning method of the cleaning chamber according to the characteristics of the impurities. The cleaning height is the distance between the cleaning probe inside the cleaning chamber and the bottom surface of the cleaning chamber. The cleaning method includes using a magnetic head to adsorb iron filings and using a filter screen to filter out other impurities besides iron filings. The cleaning chamber includes an oil window, connecting bolts, a baffle plate, an oil receiving box, an adsorption rod, a cleaning probe, and a movable filter layer; The guide plate is installed inside the gearbox. The oil receiving box is connected to the oil window hole by connecting bolts. The adsorption rod is threaded into the threaded hole at the upper end of the oil receiving box and extends into the oil receiving box. The cleaning probe is installed at the lower end of the adsorption rod. There is a gap between the cleaning probe and the bottom of the oil receiving box, and the gap can be adjusted by adjusting the height of the cleaning probe. The movable filter layer is set on the bottom surface of the oil receiving box and can move up and down along the direction of gravity of the oil receiving box. The guide plate is installed at the upper end of the oil window hole inside the gearbox. When the gearbox is in working condition, the guide plate guides the lubricating oil through the oil window hole into the oil receiving box. The movable filter layer is equipped with both filtration and oil discharge functions; The movable filter layer is provided with a plurality of filter holes; The filtering action involves the moving filter layer opening each filter hole and moving upward from the bottom of the oil receiving box to filter out impurities in the lubricating oil, except for iron filings. The oil draining action involves moving the filter layer to close each filter hole and moving it upwards from the bottom of the oil receiving box to drain the filtered lubricating oil through the oil window hole.

2. The lubricating oil cleaning device for a speed reducer according to claim 1, characterized in that, The cleaning probe has a magnetic probe mode and an adsorption probe mode; The magnetic probe mode is such that the cleaning probe extends from the magnetic head to attract iron filings inside the oil collection box; The adsorption probe mode is characterized by the cleaning probe extending from the suction head and performing a filtration action on the moving filter layer to absorb impurities on the moving filter layer.

3. The lubricating oil cleaning device for a speed reducer according to claim 2, characterized in that, The impurity analysis processor analyzes the number of iron filings and the oil level in the oil receiving box based on the internal image, and adjusts the cleaning height according to the number of iron filings and the oil level. The cleaning height is positively correlated with the oil level and negatively correlated with the number of iron filings, and the cleaning height is greater than the oil level.

4. The lubricating oil cleaning device for a speed reducer according to claim 3, characterized in that, When the internal image is in a preset impurity state, the impurity analysis processor determines that the cleaning probe adopts the adsorption probe mode. The preset impurity state is satisfied when the gearbox is in a non-working state and the impurity characteristics of the image inside the cleaning chamber are conventional impurity characteristics and the impurity particle size is smaller than the preset particle size. The impurity characteristics are the color and shape characteristics of all impurities that may appear during the operation of the gearbox, stored in the impurity analysis processor, and the conventional impurity characteristics are the color and shape characteristics of several impurities corresponding to the normal operating state of the gearbox.

5. The lubricating oil cleaning device for a speed reducer according to claim 4, characterized in that, The impurity analysis processor determines that the gearbox is malfunctioning and alarms when the internal image is in a faulty impurity state or the impurity particle size is larger than the preset particle size. The fault impurity state satisfies the condition that the gearbox is in operation and the impurity characteristic is a fault impurity characteristic. The fault impurity characteristics are the color and shape characteristics of several impurities corresponding to the gearbox malfunction.

6. The lubricating oil cleaning device for a speed reducer according to claim 5, characterized in that, After performing a preset number of filtration and oil removal operations, the impurity analysis processor executes a self-cleaning strategy for the cleaning chamber. The preset number of times is negatively correlated with the power of the gearbox, and the self-cleaning strategy of the cleaning chamber is to clean the magnetic suction head, the moving filter layer and the inner wall of the cleaning chamber.

7. The lubricating oil cleaning device for a speed reducer according to claim 6, characterized in that, The outer shell of the cleaning chamber is made of a transparent material coated with an oleophobic coating.

8. The lubricating oil cleaning device for a speed reducer according to claim 7, characterized in that, The magnetic head can be any one of a magnet, a fluid magnetic bead, or an electromagnet.

Images