CN115614456A - Oil filter in reduction gearbox of oil pumping unit - Google Patents

Oil filter in reduction gearbox of oil pumping unit Download PDF

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Publication number
CN115614456A
CN115614456A CN202110785414.XA CN202110785414A CN115614456A CN 115614456 A CN115614456 A CN 115614456A CN 202110785414 A CN202110785414 A CN 202110785414A CN 115614456 A CN115614456 A CN 115614456A
Authority
CN
China
Prior art keywords
oil
filter
pumping unit
filter screen
reduction gearbox
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110785414.XA
Other languages
Chinese (zh)
Inventor
李雪涛
周恒仓
邓钢
魏明勋
赵福冬
孙雨飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Petrochina Co Ltd
Daqing Oilfield Co Ltd
Original Assignee
Petrochina Co Ltd
Daqing Oilfield Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Petrochina Co Ltd, Daqing Oilfield Co Ltd filed Critical Petrochina Co Ltd
Priority to CN202110785414.XA priority Critical patent/CN115614456A/en
Publication of CN115614456A publication Critical patent/CN115614456A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
    • F16H57/0404—Lubricant filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/30—Combinations with other devices, not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/042—Guidance of lubricant
    • F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
    • F16H57/0423—Lubricant guiding means mounted or supported on the casing, e.g. shields or baffles for collecting lubricant, tubes or pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0457—Splash lubrication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
    • F16N39/06—Arrangements for conditioning of lubricants in the lubricating system by filtration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
    • F16N2039/007—Using strainers

Abstract

The invention discloses an oil filter in a reduction box of an oil pumping unit, which comprises oil flow splashed by splash type lubrication in the reduction box and is characterized in that: arranging a filter on the path of the oil flowing back to the oil pool; the filter element is used for filtering out impurities contained in the oil flow; the problems that gear oil in a reduction gearbox of the existing pumping unit can only be replaced periodically or an external circulating oil way is arranged for filtering, so that the gear oil cannot be kept clean all the time and intermittent production stop is needed are solved.

Description

Oil filter in reduction gearbox of oil pumping unit
Technical Field
The disclosure relates to a filtering device, in particular to a device for filtering oil in a reduction gearbox of an oil pumping unit.
Background
The gear oil in the reduction gearbox of the oil pumping unit plays a role in lubricating and cooling the bearing and the gear in the running process of the machine.
The gear in the reduction box of the oil pumping unit can generate some mechanical impurities such as scrap iron and the like in the long-term running process, thereby causing disadvantages to the lubrication of the gear.
In order to avoid the damage of the mechanical impurities to the gear, the conventional method is to achieve the purpose of circularly filtering the gear oil in the reduction gearbox by periodically replacing the pumping mode or arranging a circulating oil path outside the reduction gearbox and arranging a filter element in the oil path.
Obviously, the disadvantage of the regular oil change mode is the waste of gear oil; the mode of setting an external circulating oil way has the first aspect that the pumping unit needs to be stopped during the filtering process, and the production is influenced when the pumping unit is started or stopped; in the second aspect, the external circulation oil circuit is only used for filtering oil products intermittently, so that the oil products in the reduction gearbox can not be guaranteed to be free of mechanical impurities all the time, and the gears in the reduction gearbox can not be guaranteed to be prevented from being damaged by the mechanical impurities all the time; in the third aspect, gear oil in the reduction gearbox of the pumping unit is replaced regularly, so that the oil is replaced regularly, and manpower and material resources are wasted in replacement operation.
Disclosure of Invention
In view of this, the present disclosure provides an oil filter in a reduction gearbox of an oil pumping unit, which solves the problems that gear oil in the reduction gearbox of the existing oil pumping unit can only be periodically replaced or an external circulation oil path is arranged for filtering, so that the gear oil can not be kept clean all the time and intermittent production stop is required.
In order to realize the aim, the oil filter in the reduction box of the pumping unit comprises oil flow splashed by splash type lubrication in the reduction box, and is characterized in that:
arranging a filter on the path of the oil flowing back to the oil pool;
the filtering element is used for filtering out impurities contained in the oil flow.
Furthermore, the filter screen is arranged on the fixed frame;
the fixing frame is connected to the lower surface of the inspection port cover plate of the reduction gearbox.
Further, the filter element is a sieve.
Further, the fixing frame comprises a filter screen frame;
the filter screen is arranged in the filter screen frame.
Further, the filter screen frame is connected with the drainage grooves;
the drainage grooves are used for guiding the oil on the paths into the filter screen frame in a connecting mode so as to reduce the area of the filter screen frame.
Further, the drainage grooves are detachably connected with the filter screen frame.
Further, a magnetic part is arranged on the path;
the magnetic piece is used for adsorbing metal debris in the oil flow.
Further, the magnetic member is a magnet.
Further, the oil flow splashed by the splash lubrication is generated by the rotation of the driving gear to carry oil in the oil pool.
Further, the filter screen comprises at least two layers;
the mesh number of each layer of the filter screen is reduced from top to bottom in sequence to filter the impurities with different volumes.
The invention has the following beneficial effects:
the oil filter in the reduction gearbox of the pumping unit is installed in the reduction gearbox, an additional power source is not needed, and the waterfall flow generated by splash lubrication flows through the filter screen to filter out mechanical impurities in oil flow at any time, so that the gear is better protected to keep a good running state, the service lives of the gear and the bearing are prolonged, the oil change period of the gear oil is prolonged, and the maintenance cost of equipment is reduced.
Drawings
The above and other objects, features and advantages of the present disclosure will become more apparent from the following description of embodiments of the present disclosure with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of an oil filter in a reduction gearbox of an oil pumping unit according to an embodiment of the disclosure;
FIG. 2 is a right side view of FIG. 1;
FIG. 3 is a schematic diagram of a screen frame according to an embodiment of the disclosure;
fig. 4 is a schematic structural diagram of a connection plate according to an embodiment of the disclosure.
Detailed Description
The present disclosure is described below based on examples, but it is worth explaining that the present disclosure is not limited to these examples. In the following detailed description of the present disclosure, some specific details are set forth in detail. However, the present invention may be fully understood by those skilled in the art for those parts not described in detail.
Furthermore, those skilled in the art will appreciate that the drawings are provided solely for the purposes of illustrating the invention, features and advantages thereof, and are not necessarily drawn to scale.
Also, unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, the meaning of "includes but is not limited to".
The invention discloses an oil filter in a reduction box of an oil pumping unit, which is characterized in that when the oil pumping unit works, a driving gear in the reduction box rotates rapidly, so that oil (gear oil) in an oil pool is carried and subjected to splash lubrication, continuous oil flow is splashed while the splash lubrication is carried out, a filter element is arranged on a path of the oil flow falling back to the oil pool, and impurities contained in the oil flow are filtered out through the filter element.
Specifically, the specific technical solutions adopted to implement the inventive concepts of the present disclosure are described with reference to the accompanying drawings:
FIG. 1 is a schematic view of an oil filter in a reduction gearbox of an oil pumping unit according to an embodiment of the disclosure; FIG. 2 is a right side view of FIG. 1; in fig. 1 and 2, the filtering element is a filtering net 5, and the filtering net is arranged on a fixing frame, and the fixing frame is connected to the lower surface of an inspection port cover plate of the reduction gearbox.
Because the reducing gear box internally mounted is the pivoted part, so there is not the position that can fixed mounting mount, the prerequisite of installing this mount in addition is the safe operation that each rotating member in the assurance reducing gear box, observes through the interior outer structure to the reducing gear box, and final this embodiment is connected the mount at the inspection mouth apron lower surface of reducing gear box, and so, the mount can be fixed in the reducing gear box, also can not influence the safe operation of each rotating member in the reducing gear box.
It can be seen that the filter screen 5 is fixedly arranged on the path of oil flow of splash lubrication falling back to the oil pool, namely, after the gear oil completes the normal lubrication and cooling functions of the driving gear and the transmission gear and the bearing thereof, the oil flow is intercepted and filtered, so that the arrangement of the filter of the present disclosure can not cause any influence on the function of the reduction gearbox of the pumping unit.
In addition, the splash type lubricating oil flow impacts the filter screen 5 in the falling process, the potential energy of the oil flow is converted into kinetic energy, and the power of the oil flow passing through the filter screen 5 is increased, so that the filtering speed of the filter screen 5 is high, and even if the filter screen 5 fails due to blockage or is not smooth due to partial blockage, the filtering speed is not greatly influenced.
Because input shaft (driving gear) rotational speed is fast, the iron fillings that produce with drive gear friction are at most at this position, this embodiment sets up filter screen 5 at the position most and nearest from this production iron fillings, when guaranteeing to produce at the iron fillings very first time, most iron fillings can be held back by filter screen 5 along with the lubricated oil flow of splash-type, in order to avoid most iron fillings to flow into the oil bath, and then in being carried into the bearing by the driving gear at incessant during operation, cause wearing and tearing to the bearing, so this embodiment sets up filter screen 5 at the filter effect of this position best.
In fig. 1 and 3, the fixing frame includes a screen frame 3, the screen 5 is disposed in the screen frame 3, and the screen frame is connected to a drainage groove 4 through which the oil on the path is drained into the screen frame 3 to be filtered by the screen 5.
In order to adapt to reduction gearboxes of different specifications, the drainage grooves 4 and the filter frame 3 adopt a detachable connection mode, so that in different reduction gearboxes, the angles of the drainage grooves 4 can be adjusted according to actual conditions, oil flow can be ensured to flow into the filter frame 3, and then the drainage grooves 4 are fixed.
Because the space in the reduction box is limited, except the necessary speed reducing mechanism, the rest space is very small, through observation, under the premise that the filter screen 5 needs to be ensured to be positioned below the oil flow path, the volume of the filter screen frame 3 must be large enough to achieve the purpose of filtering the gear oil, and the filter screen frame 3 with the large volume is not beneficial to being installed in the reduction box at all. And the drainage grooves 4 are connected to the filter screen frame 3, so that the volume of the filter screen frame 3 can be reduced, and the filtering effect of the filter screen 5 is not influenced.
Because two strands of oil flows can be generated in the reduction gearbox of the oil pumping unit, in fig. 3, the drainage grooves 4 are connected to two sides of the filter screen frame 5 of the embodiment.
In fig. 1, the fixing frame comprises a connecting plate 1, a connecting leg 2 is fixedly connected below the connecting plate 1, and the other end of the connecting leg 2 is connected with a filter screen frame 3. The connecting plate 1 and the connecting legs 2 are preferably connected in a welding mode, and detachable connecting parts such as screws are not required to be connected as far as possible, so that the connecting parts such as bolts are prevented from falling into an oil pool of the reduction gearbox due to looseness.
The structure of the connecting plate 1 is as shown in fig. 4, the structure of the connecting plate is matched with the view port cover plate of the reduction gearbox, screw holes are formed in the periphery of the connecting plate 1, the connecting plate 1 and the view port cover plate can be connected together through bolts, and other fixed connection modes can be adopted.
Preferably, a magnetic member may be further provided in a path of the oil flow, by which metal debris in the oil flow is adsorbed, and the magnetic member may be a magnet. Because the damage of the metal debris to the bearing is larger than that of common mechanical impurities, the damage of the metal debris to the bearing can be avoided to the maximum extent by arranging the magnet.
Of course, the magnet can also be arranged in the filter screen frame 3 and can be used for filtering the gear oil in the oil pool under the combined action of the filter screen 5.
It is understood that the filter screen of this embodiment includes two-layer at least, and the mesh number from the top down of each layer of filter screen reduces in proper order, like this, because the filter screen 5 of different mesh numbers can filter the mechanical impurity of different volumes, so the impurity of bulky is at first filtered out, can reduce the filter pressure of the little mesh number filter screen in below to improve the filtration efficiency of filter screen to a certain extent.
In conclusion, the filter breaks through the traditional external filtering mode, the filtering device is arranged inside the reduction gearbox of the pumping unit, and the purpose of circularly filtering the gear oil in the oil pool is achieved on the premise of not needing an additional power source by ingeniously utilizing the oil flow power generated by internal splash type lubrication; in addition, the impact of the splash type lubricating oil flow ensures that the normal lubrication of the oil flow in the oil pool is not influenced even if the filter screen is blocked; and the filter receiving position of the filter screen is arranged at the position which is most likely to generate scrap iron, so that the filter effect is good.
By optimizing the structure of the filter screen frame 4 and introducing the drainage grooves 4, the volume of the device is reduced, and oil flow is filtered to the maximum extent.
In addition, the filter screen 5 of the filter can be replaced at any time, the fixing frame and the filter screen frame 3 on the fixing frame cannot be influenced by the transmission mechanism in the reduction gearbox, the normal operation of the reduction gear cannot be influenced, the installation and operation cost is low, and the filter has good practicability.
The above-mentioned embodiments are merely embodiments for expressing the invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, various changes, substitutions of equivalents, improvements and the like can be made without departing from the spirit of the invention, and these are all within the scope of the invention. Therefore, the protection scope of the present patent should be subject to the appended claims.

Claims (10)

1. The utility model provides an interior oil filter of beam-pumping unit reducing gear box, includes the oil stream that splashes formula lubrication spill in the reducing gear box, its characterized in that:
arranging a filter on the path of the oil flowing back to the oil pool;
the filtering element is used for filtering out impurities contained in the oil flow.
2. The oil filter in the reduction gearbox of the pumping unit according to claim 1, characterized in that:
the filter element is arranged on the fixed frame;
the fixing frame is connected to the lower surface of the inspection port cover plate of the reduction gearbox.
3. The oil filter in the reduction gearbox of the pumping unit according to claim 2, characterized in that:
the filter element is a filter screen.
4. The oil filter in the reduction gearbox of the pumping unit according to claim 3, characterized in that:
the fixing frame comprises a filter screen frame;
the filter screen is arranged in the filter screen frame.
5. The oil filter in the reduction gearbox of the pumping unit according to claim 4, characterized in that:
the filter screen frame is connected with the drainage groove;
the drainage grooves are used for guiding the oil on the paths into the filter screen frame in a connecting mode so as to reduce the area of the filter screen frame.
6. The oil filter in the reduction gearbox of the pumping unit according to claim 5, characterized in that:
the drainage groove and the filter screen frame are connected in a detachable mode.
7. The oil filter in the reduction box of the oil pumping unit according to any one of claims 1 to 6, characterized in that:
a magnetic part is also arranged on the path;
the magnetic piece is used for adsorbing metal debris in the oil flow.
8. The oil filter in the reduction gearbox of the pumping unit according to claim 7, characterized in that:
the magnetic member is a magnet.
9. The oil filter in the reduction box of the oil pumping unit according to any one of claims 1 to 6 or 8, characterized in that:
the oil flow splashed by the splash lubrication is generated by the rotation of a driving gear to carry oil in the oil pool.
10. The oil filter in the reduction box of the oil pumping unit according to any one of claims 2 to 6, characterized in that:
the filter screen at least comprises two layers;
the mesh number of each layer of the filter screen is reduced from top to bottom in sequence to filter the impurities with different volumes.
CN202110785414.XA 2021-07-12 2021-07-12 Oil filter in reduction gearbox of oil pumping unit Pending CN115614456A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110785414.XA CN115614456A (en) 2021-07-12 2021-07-12 Oil filter in reduction gearbox of oil pumping unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110785414.XA CN115614456A (en) 2021-07-12 2021-07-12 Oil filter in reduction gearbox of oil pumping unit

Publications (1)

Publication Number Publication Date
CN115614456A true CN115614456A (en) 2023-01-17

Family

ID=84855533

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110785414.XA Pending CN115614456A (en) 2021-07-12 2021-07-12 Oil filter in reduction gearbox of oil pumping unit

Country Status (1)

Country Link
CN (1) CN115614456A (en)

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