CN113790381B - Well cementation fracturing pump oil collecting disc suitable for plunger grease lubrication and using method thereof - Google Patents
Well cementation fracturing pump oil collecting disc suitable for plunger grease lubrication and using method thereof Download PDFInfo
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- CN113790381B CN113790381B CN202110983934.1A CN202110983934A CN113790381B CN 113790381 B CN113790381 B CN 113790381B CN 202110983934 A CN202110983934 A CN 202110983934A CN 113790381 B CN113790381 B CN 113790381B
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- 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
- F16N11/00—Arrangements for supplying grease from a stationary reservoir or the equivalent in or on the machine or member to be lubricated; Grease cups
- F16N11/10—Arrangements for supplying grease from a stationary reservoir or the equivalent in or on the machine or member to be lubricated; Grease cups by pressure of another fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/18—Lubricating
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- 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
- F16N31/00—Means for collecting, retaining, or draining-off lubricant in or on machines or apparatus
- F16N31/02—Oil catchers; Oil wipers
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- 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
- F16N2210/00—Applications
- F16N2210/16—Pumps
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/74—Recovery of fats, fatty oils, fatty acids or other fatty substances, e.g. lanolin or waxes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sewage (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention provides a well cementation fracturing pump oil collecting tray suitable for plunger grease lubrication and a using method thereof. Compared with the conventional oil collecting tray, the oil scraping device is additionally arranged in the oil tray, the aperture of the discharge port is increased, the difficulty of waste lubricating grease cleaning can be greatly reduced, and the equipment maintenance workload during operation is reduced.
Description
Technical Field
The invention relates to the field of petroleum drilling and well cementation fracturing pumps, in particular to a well cementation fracturing pump oil collecting tray suitable for plunger grease lubrication and a using method thereof.
Background
The plunger pump is one of key devices of oil and gas exploitation series equipment, and is widely applied to well cementation, fracturing and water injection operation. In recent years, the requirements of oil and gas engineering service companies on operation environmental protection and low cost are higher and higher, and grease lubrication gradually replaces oil lubrication to become the first choice for plunger lubrication of plunger pump equipment for oil fields due to the low cost and environmental protection advantages of the grease lubrication. Because the lubricating oil has better fluidity, the oil collecting tray of the conventional well cementation fracturing plunger pump is mostly a simple thin-wall container, and the waste lubricating oil can be easily discharged through the liquid discharge pipe of the oil collecting tray. When the plunger is lubricated by using lubricating grease, the flowability of the lubricating grease is poor, so that the flowability of the lubricating grease becomes worse after the rubber parts such as packing, sealing rings and the like are mixed, and the waste lubricating grease cannot be discharged through a liquid discharge pipeline of the oil collecting tray. Meanwhile, the assembly space is small, the oil collecting tray is inconvenient to disassemble, and the waste lubricating grease is difficult to clean.
Disclosure of Invention
The invention mainly aims to provide an oil collecting tray of a well cementation fracturing pump suitable for plunger grease lubrication and a using method thereof, and solves the problems that waste lubricating grease cannot be discharged through a liquid discharge pipeline of the oil collecting tray, the oil collecting tray is inconvenient to disassemble, and the difficulty in cleaning the waste lubricating grease is high.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the oil pan is connected with a pump assembly through a connecting device, an oil scraping device is arranged inside the oil pan and comprises an oil scraping plate, the shape of the oil scraping plate is consistent with the shape of an oil storage cross section at the bottom of the oil pan, a driving device is further arranged, the driving device is connected with the oil scraping plate, a waste discharge port is formed in the bottom or the end of the oil pan, and the driving device drives the oil scraping plate to slide so that waste oil and fat are discharged from the waste discharge port by the oil scraping plate.
In the preferred scheme, the oil scraping device comprises a vertical plate and at least one oil scraping plate, the oil scraping plate is hinged to the vertical plate, a limiting plate is further arranged on the vertical plate, and the oil scraping plate is opened to abut against the limiting plate when sliding towards the waste discharge port.
In the preferred scheme, a stop head is also arranged on the vertical plate;
when the oil scraping plate moves reversely, the oil scraping plate rotates and abuts against the blocking head.
In the preferred scheme, the driving device is a manual driving device and comprises a guide pipe, the guide pipe is arranged inside the oil pan, an opening is formed below the guide pipe, a pull rod is arranged inside the guide pipe, and the vertical plate penetrates through the opening of the guide pipe and is connected with the pull rod.
In a preferable scheme, the end part of the handle is also provided with a handle, and the handle penetrates through one side of the oil pan and is connected with the handle.
In the preferred scheme, drive arrangement is electric drive device, including lead screw slider, erects the version and is connected with lead screw slider, and the food tray is inside to be equipped with the lead screw, lead screw and lead screw slider threaded connection, and the food tray outside is equipped with the motor, motor and screw connection.
In the preferred scheme, lead screw one side still is equipped with the guide bar, and the guide bar both ends are connected with the food tray, lead screw slider and guide bar sliding connection.
In the preferred scheme, the connecting device comprises a buckle connection structure, a hook connection structure or a threaded connection structure.
In a preferable scheme, a plurality of handles are further arranged at two ends of the oil pan.
The method for manually discharging the waste grease comprises the following steps:
s1, lifting an oil pan by using a handle to be installed on a pump assembly;
s2, after waste oil in the oil pan is accumulated, the pull rod is used for driving the whole oil scraping device to move back and forth in the oil pan, the oil scraping plate is in an open state or a flattened state when moving towards the waste discharge end of the oil pan, and the shape of the oil scraping plate is consistent with the shape of an oil storage section at the bottom of the oil pan;
s3, the oil scraping plate is closed to a certain included angle during reverse movement, the oil scraping plate is of an up-and-down opening and closing structure, and the oil scraping plate is transversely lifted during reverse movement, so that waste lubricating grease is prevented from being pushed in the reverse direction;
and S4, opening and closing of the oil scraping plate of the oil scraping device are realized by the resistance of lubricating grease when the device moves forwards and backwards, and the opening and closing angles are limited by a limiting plate and a stop head on the oil scraping plate.
The method for automatically discharging the waste oil comprises the following steps:
a1, after waste oil inside an oil tray is accumulated, a controller controls a motor to rotate, the motor drives a lead screw to drive an oil scraping device to move back and forth inside the oil tray, and the principle of an oil scraping plate of the oil scraping device is the same as that of the steps S3-S4;
a2, the control center controls the number of turns of the motor and the stroke of the oil scraping device in the oil pan;
a3, the control center controls the running time of the motor and controls the oil scraping device to clean up waste oil inside the oil pan.
The invention provides an oil collecting disc of a well cementation fracturing pump suitable for plunger grease lubrication and a using method thereof. Compared with the conventional oil collecting tray, the oil scraping device is additionally arranged in the oil tray, the hole diameter of the discharge port is increased, the difficulty of waste lubricating grease cleaning can be greatly reduced, and the equipment maintenance workload during operation can be reduced. Waste lubricating grease can be conveniently cleaned when the oil collecting tray is not detached. The oil scraping device can move back and forth in the oil pan, and the shape of the oil scraping plate is consistent with the shape of the oil storage section at the bottom of the oil pan when the oil scraping plate moves towards the liquid discharge end of the oil pan; the oil scraping plate is closed to a certain included angle during reverse movement, waste lubricating grease is prevented from being pushed in the reverse direction, the oil scraping plate can also be designed into an upper and lower opening and closing structure, the oil scraping and waste oil discharging efficiency is high, the structure is simple, and convenience and practicability are realized.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a general block diagram of the present invention;
FIG. 2 is a structural view of a manually driven oil scraping device of the present invention;
FIG. 3 is a view showing the construction of the oil scraping apparatus of the present invention;
FIG. 4 is a view showing a structure of a reverse thrust structure of the oil scraping apparatus of the present invention;
FIG. 5 is a structural view of an electrically driven oil scraping device according to the present invention;
FIG. 6 is a view showing the construction of the oil scraping plate of the vertically opening and closing structure of the present invention;
FIG. 7 is a block diagram of a single oil scraper blade according to the present invention;
in the figure: an oil scraping device 1; a scraper plate 101; a hinge 102; a stopper plate 103; a pull rod 104; a guide tube 105; a handle 106; a vertical plate 107; a rotating shaft 108; a stopper 109; an oil pan 2; a connecting device 3; a handle 4; a waste discharge port 5; a lead screw slider 6; a guide rod 7; and a lead screw 8.
Detailed Description
As shown in fig. 1 to 7, an oil collecting tray of a well cementation fracturing pump suitable for lubricating plunger grease and a using method thereof are provided, wherein an oil pan 2 is connected with a pump assembly through a connecting device 3, an oil scraping device 1 is arranged inside the oil pan 2, the oil scraping device 1 comprises an oil scraping plate 101, the shape of the oil scraping plate 101 is consistent with the shape of an oil storage cross section at the bottom of the oil pan 2, a driving device is further arranged, the driving device is connected with the oil scraping plate 101, a waste discharging opening 5 is arranged at the bottom or at the end part of the oil pan 2, and the driving device drives the oil scraping plate 101 to slide so that waste grease is discharged from the waste discharging opening 5 by the oil scraping plate 101. During the use, the device is assembled at the middle connecting part of the power end and the hydraulic end of the well cementation fracturing pump and is used for collecting waste lubricating grease or lubricating oil discharged by the lubrication of the plunger at the hydraulic end and lubricating oil possibly leaked at the oil seal part of the small connecting rod at the power end. Compared with the conventional oil collecting tray, the oil scraping device is additionally arranged in the oil tray, the hole diameter of the discharge port is increased, the difficulty of waste lubricating grease cleaning can be greatly reduced, and the equipment maintenance workload during operation can be reduced.
In the preferred scheme, the oil scraping device 1 comprises a vertical plate 107 and at least one oil scraping plate 101, wherein the oil scraping plate 101 is hinged to the vertical plate 107, a limiting plate 103 is further arranged on the vertical plate 107, and the oil scraping plate 101 is opened to abut against the limiting plate 103 when the oil scraping plate 101 slides towards the waste discharge port 5. The vertical plate 107 is also provided with a stopper 109. The scraper 101 rotates against the stop 109 when the scraper 101 moves in the reverse direction.
The oil scraping plate 101 of the oil scraping device 1 includes the oil scraping plates 101 installed in a left-right symmetrical manner and having the structure shown in fig. 2, or the oil scraping plates 101 adopting an up-down opening and closing structure have the structure shown in fig. 6, or may have a single oil scraping plate 101 structure or a single oil scraping plate 101 structure as shown in fig. 7.
The oil scraping device 1 comprises a vertical plate 107, a rotating shaft 108 is arranged on the vertical plate 107, the oil scraping device further comprises at least two oil scraping plates 101, hinges 102 are arranged on the oil scraping plates 101, the two oil scraping plates 101 are symmetrically arranged, the hinges 102 of the oil scraping plates 101 are hinged to the rotating shaft 108, limiting plates 103 are further arranged on two sides of the vertical plate 107, and the oil scraping plates 101 are opened to abut against the limiting plates 103 when the oil scraping plates 101 slide towards the waste discharge port 5. The oil scraping device 1 with the structure shown in figure 3 can move back and forth in the oil pan, and the shape of the oil scraping plate 101 is consistent with the shape of the oil storage section at the bottom of the oil pan 2 when the oil scraping plate is in an open state when moving towards the liquid discharging end of the oil pan 2; the scraper 101 is closed to a certain angle during reverse movement to avoid pushing the waste grease in the reverse direction, and can be designed to be an up-and-down opening and closing structure, and the principle is the same as the above. The joint parts of the oil scraper 101 are connected by a hinge 102, the opening and the closing are realized by the resistance of lubricating grease when the device moves forwards and backwards, and the opening and the closing angles are limited by a limit plate 103 on the oil scraper.
The oil pan 2 is of a box body structure with an upper opening formed by stamping or welding, the bottom of the oil pan is provided with an oil storage structure, and the cross section of the oil storage part is symmetrical left and right, preferably in a circular or inverted isosceles trapezoid structure.
The oil pan 2 is of a box body structure with an upper opening formed by stamping or welding, the bottom of the oil pan is provided with an oil storage structure, the cross section of the oil storage part is bilaterally symmetrical, preferably of an arc-shaped structure, and the oil storage part can also be of an inverted isosceles trapezoid structure. The connecting device 3 is used for assembling and connecting the oil collecting tray and the pump assembly, and a clamping connection structure, a hook connection structure or a threaded connection structure is recommended. The figures show a snap connection with a bolt lock. The handle 4 is bent from round steel, welded to the oil pan, and used to lift the oil pan during handling such as loading and unloading. The drain port 5 is used for discharging waste lubricating oil or grease, and is a through-hole pipe joint welded to an oil pan.
In a preferable scheme, a blocking head 109 is further arranged on the vertical plate 107, the blocking head 109 penetrates through the two oil scraping plates 101 and is arranged on the front side, and when the oil scraping plates 101 move reversely, the oil scraping plates 101 abut against the blocking head 109 in a closed mode to form an acute angle. The two oil scraping plates 101 are prevented from sticking together when pushed back, and are unfolded into a flat plate structure when scraping oil.
In a preferred scheme, the driving device is a manual driving device and comprises a guide pipe 105, the guide pipe 105 is arranged inside the oil pan 2, an opening is formed below the guide pipe 105, a pull rod 104 is arranged inside the guide pipe 105, and a vertical plate 107 penetrates through the opening of the guide pipe 105 and is connected with the pull rod 104. The handle 4 is also provided with a pull handle 106 at the end, and the handle 4 is connected to the pull handle 106 through the oil pan 2 side. The manual driving device is structured as shown in fig. 2, the handle 4 can drag the vertical plate 107, and the oil scraping plate 101 on the vertical plate 107 can scrape oil.
In the preferred scheme, drive arrangement is electric drive device, including lead screw slider 6, erects version 107 and is connected with lead screw slider 6, and 2 inside lead screws 8 that are equipped with of food tray, lead screw 8 and 6 threaded connection of lead screw slider, the 2 outsides of food tray are equipped with the motor, and the motor is connected with lead screw 8. Lead screw 8 one side still is equipped with guide bar 7, and 7 both ends of guide bar are connected with food tray 2, lead screw slider 6 and guide bar 7 sliding connection. As shown in FIG. 5, the motor drives the screw 8 to rotate, and the oil scraper 101 can slide along the inside of the oil pan 2 to discharge oil.
In a preferred embodiment, the connecting device 3 comprises a snap connection, a hook connection or a threaded connection. The preferred buckle of this scheme is connected.
In a preferred scheme, a plurality of handles 4 are further arranged at two ends of the oil pan 2.
Example 2
As further described in connection with example 1, the method for manually discharging grease, which is constructed as shown in fig. 1 to 7, comprises: s1, the oil pan 2 is lifted by a handle 4 and is installed on a pump assembly.
After waste grease inside the oil pan 2 is accumulated, the pull rod 104 is used for driving the whole oil scraping device 1 to move back and forth inside the oil pan 2 by using the handle 106, the oil scraping plate 101 is in an open state or a flattening state when moving towards the end of the waste discharge port 5 of the oil pan 2, and the shape of the oil scraping plate 101 is consistent with the shape of the oil storage section at the bottom of the oil pan 2.
The oil scraper device 1 is characterized in that the opening and closing of the oil scraper plate 101 are realized by the resistance of lubricating grease when the device moves back and forth, and the opening and closing angles are limited by a limit plate 103 and a stop 109 on the oil scraper plate 101.
The method for automatically discharging the waste oil comprises the following steps: after waste grease in the oil pan 2 is accumulated, the controller controls the motor to rotate, the motor drives the screw 8 to drive the oil scraping device 1 to move back and forth in the oil pan 2, and the principle of the oil scraping plate 101 of the oil scraping device 1 is the same as that of the steps S3-S4.
The control center controls the number of turns of the motor and the stroke of the oil scraping device 1 in the oil disc 2.
The control center controls the running time of the motor and controls the oil scraping device 1 to clean up waste oil inside the oil disc 2.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention is defined by the claims, and includes equivalents of technical features described in the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.
Claims (6)
1. A well cementation fracturing pump oil collecting tray suitable for lubricating plunger grease is characterized in that: the oil pan (2) is connected with the pump assembly through the connecting device (3), the oil scraping device (1) is arranged inside the oil pan (2), the oil scraping device (1) comprises an oil scraping plate (101), the shape of the oil scraping plate (101) is consistent with the shape of an oil storage section at the bottom of the oil pan (2), the oil scraping device is further provided with a driving device, the driving device is connected with the oil scraping plate (101), a waste discharge port (5) is formed in the bottom or the end part of the oil pan (2), and the driving device drives the oil scraping plate (101) to slide so that the oil scraping plate (101) can discharge waste oil and fat from the waste discharge port (5);
the oil scraping device (1) comprises a vertical plate (107) and at least one oil scraping plate (101), wherein the oil scraping plate (101) is hinged to the vertical plate (107), a limiting plate (103) is further arranged on the vertical plate (107), and the oil scraping plate (101) is opened to abut against the limiting plate (103) when the oil scraping plate (101) slides to the waste discharge port (5);
a stop head (109) is also arranged on the vertical plate (107);
when the oil scraping plate (101) moves reversely, the oil scraping plate (101) rotates to abut against the stop head (109);
the driving device is a manual driving device and comprises a guide pipe (105), the guide pipe (105) is arranged inside the oil pan (2), an opening is formed below the guide pipe (105), a pull rod (104) is arranged inside the guide pipe (105), and a vertical plate (107) penetrates through the opening of the guide pipe (105) and is connected with the pull rod (104);
or, drive arrangement is electric drive arrangement, including lead screw slider (6), and riser (107) are connected with lead screw slider (6), and food tray (2) inside is equipped with lead screw (8), lead screw (8) and lead screw slider (6) threaded connection, and the food tray (2) outside is equipped with the motor, and the motor is connected with lead screw (8).
2. A well cementation fracturing pump oil collecting tray suitable for grease lubrication of a plunger as claimed in claim 1, wherein: the end part of the pull rod (104) is also provided with a handle (106), and the pull rod (104) penetrates through one side of the oil pan (2) and is connected with the handle (106).
3. A well cementation fracturing pump oil collecting tray suitable for grease lubrication of a plunger as claimed in claim 1, wherein: lead screw (8) one side still is equipped with guide bar (7), and guide bar (7) both ends are connected with food tray (2), and lead screw slider (6) and guide bar (7) sliding connection.
4. A well cementation fracturing pump oil collecting tray suitable for grease lubrication of a plunger as claimed in claim 1, wherein: the connecting device (3) comprises a buckle connection structure, a hook connection structure or a thread connection structure.
5. A well cementation fracturing pump oil collecting tray suitable for grease lubrication of a plunger as claimed in claim 2, wherein: the two ends of the oil pan (2) are also provided with a plurality of handles (4).
6. The use method of the oil collecting disc of the well cementation fracturing pump suitable for the grease lubrication of the plunger as claimed in claim 5, characterized in that:
the method for manually discharging the waste grease comprises the following steps:
s1, lifting an oil pan (2) by using a handle (4) and installing the oil pan on a pump assembly;
s2, after waste grease in the oil pan (2) is accumulated, the pull rod (104) is used for driving the whole oil scraping device (1) to move back and forth in the oil pan (2) through the pull handle (106), the oil scraping plate (101) is in an open state or a flattening state when moving towards the waste discharge port (5) end of the oil pan (2), and the shape of the oil scraping plate (101) is consistent with the shape of an oil storage section at the bottom of the oil pan (2);
s3, the oil scraping plate (101) is closed to a certain included angle during reverse movement, the oil scraping plate (101) is of an up-and-down opening and closing structure, and is transversely lifted during reverse movement, so that waste lubricating grease is prevented from being pushed in the reverse direction;
s4, opening and closing of the oil scraping plate (101) of the oil scraping device (1) are realized by resistance of lubricating grease when the device moves forwards and backwards, and an opening angle and a closing angle are limited by a limiting plate (103) and a stop head (109) on the oil scraping plate (101);
or, the method for automatically discharging the grease comprises the following steps:
a1, after waste oil and fat in an oil pan (2) are accumulated, a controller controls a motor to rotate, the motor drives a lead screw (8) to drive an oil scraping device (1) to move back and forth in the oil pan (2), and the principle of an oil scraping plate (101) of the oil scraping device (1) is the same as that of the steps S3-S4;
a2, the control center controls the number of rotation turns of the motor and the stroke of the oil scraping device (1) in the oil pan (2);
a3, the control center controls the running time of the motor and controls the oil scraping device (1) to clean up waste oil inside the oil disc (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110983934.1A CN113790381B (en) | 2021-08-25 | 2021-08-25 | Well cementation fracturing pump oil collecting disc suitable for plunger grease lubrication and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110983934.1A CN113790381B (en) | 2021-08-25 | 2021-08-25 | Well cementation fracturing pump oil collecting disc suitable for plunger grease lubrication and using method thereof |
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| Publication Number | Publication Date |
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| CN113790381A CN113790381A (en) | 2021-12-14 |
| CN113790381B true CN113790381B (en) | 2023-03-31 |
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| CN202110983934.1A Active CN113790381B (en) | 2021-08-25 | 2021-08-25 | Well cementation fracturing pump oil collecting disc suitable for plunger grease lubrication and using method thereof |
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Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2271415Y (en) * | 1996-09-25 | 1997-12-31 | 宝山钢铁(集团)公司 | Oil wiper for recovering dry oil |
| CN2700690Y (en) * | 2004-04-06 | 2005-05-18 | 苏海钊 | Grease filler for grease gun |
| DE102012200374B3 (en) * | 2012-01-12 | 2013-04-11 | Aktiebolaget Skf | stripper |
| CN103511824B (en) * | 2013-03-26 | 2016-01-06 | 淄博高新区成大机械设计研究所 | A kind of oil drainage device for motor |
| CN207661392U (en) * | 2017-11-19 | 2018-07-27 | 南京高传电机制造有限公司 | A kind of oil collection box in the bearing (ball) cover oil-releasing mechanism of wind-driven generator |
| CN209212334U (en) * | 2018-12-27 | 2019-08-06 | 宁波爱立德汽车部件有限公司 | A kind of automobile engine oil pan assembly |
| CN210308584U (en) * | 2019-05-20 | 2020-04-14 | 山东清洋新材料有限公司 | Epoxy waste recovery device |
| CN210770129U (en) * | 2019-09-23 | 2020-06-16 | 三联传动机械有限公司 | Oil discharge device of oil disc of speed reducer |
| CN211344757U (en) * | 2019-12-28 | 2020-08-25 | 鲁尔(天津)润滑油有限公司 | High-efficient cooling device of lubricating oil |
| CN216046802U (en) * | 2021-08-25 | 2022-03-15 | 中石化四机石油机械有限公司 | Oil collecting disc of well cementation fracturing pump for lubricating plunger grease |
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