CN209909525U - Multi-stage filtering type centrifugal oil filter applied to marine low-speed machine - Google Patents

Abstract

The purpose of the utility model is to provide a multi-stage filtering centrifugal lubricating oil filter applied to a marine low-speed engine, which includes a top cover, a rotor and a base. Each earring of the top cover corresponds to one earring of the base, thus forming a pair of earrings, each pair of earrings are connected by installing through bolts in their bolt holes, the rotor is installed between the top cover and the base, and the top cover and the rotor are arranged between The deep groove ball bearing forms a rotating motion pair, an observation hole is set on the top cover, the observation oil plug is plugged in the observation hole, the top cover is machined with holes, the oil outlet pipe is installed in the rotor, and extends from the hole to the outside of the rotor. The utility model does not use an outer casing, which further reduces the mass; because the rotor has a relatively large turning radius, the centrifugal effect can be achieved only with a slightly lower rotational speed.

Description

A multi-stage filtering centrifugal lubricating oil filter applied to marine low-speed engine

technical field

The utility model relates to an oil filter device, in particular to a low-speed engine oil filter device.

Background technique

The function of the lubrication system is to supply clean lubricating oil with a certain viscosity to the friction parts, maintain the liquid friction between the two relative moving parts, avoid dry friction, reduce wear and reduce the power consumed in friction; Heat and metal shavings; in some diesel engines there is also the task of cooling the pistons with oil

The function of the lubrication system is that the parts that need to be lubricated in the internal combustion engine are: the main journal and crankpin of the crankshaft, the piston and the cylinder, the camshaft bearing and cam, the transmission shaft bearing and gears, etc.

The task of the oil filter is to remove impurities from the lubricating oil. The most commonly used structural forms are mesh type, lamination type and centrifugal type. In the prior art, the mesh filter has a large volume, low filtration efficiency, and is difficult to clean and maintain; the lamination filter has a large volume and a general filtering effect; the centrifugal filter rotates too high, and high-speed operation may be dangerous. .

SUMMARY OF THE INVENTION

The purpose of the utility model is to provide a multi-stage filtering centrifugal lubricating oil filter applied to a marine low-speed engine with high filtering efficiency, simple volume, safe operation, easy cleaning and maintenance.

The purpose of this utility model is achieved in this way:

The utility model is a multi-stage filtering centrifugal lubricating oil filter applied to a marine low-speed engine. The utility model is characterized in that it comprises a top cover, a rotor and a base. The top cover and the base both extend out of earrings, and bolt holes are arranged on the earrings. Each earring of the top cover corresponds to one earring of the base, thus forming a pair of earrings, each pair of earrings are connected by installing through bolts in their bolt holes, the rotor is installed between the top cover and the base, and the top cover and the rotor are arranged between The deep groove ball bearing forms a rotating motion pair, an observation hole is set on the top cover, the observation oil plug is plugged in the observation hole, the top cover is machined with holes, the oil outlet pipe is installed in the rotor, and extends from the hole to the outside of the rotor.

The utility model can also include:

1. The rotor includes a rotor casing and a hollow shaft. The hollow shaft is installed in the rotor casing and integrated with the rotor casing. There are three-layer slots for installing the filter screen inside the rotor casing, and the bottom end of the rotor corresponds to three layers. Three cocks are arranged in the slot, the upper end of the hollow shaft is machined with mesh, the lower part of the hollow shaft is installed with a follower gear, and the hollow shaft under the follower gear is installed with a first sealing ring, a tapered roller bearing, and a second sealing ring. The rotor passes through The tapered roller bearing and the base form a rotating pair.

2. It also includes a transmission gear shaft. A transmission gear is installed on the transmission gear shaft, and the transmission gear meshes with the follower gear.

3. An oil inlet pipeline is set on the base, and the oil inlet pipeline is connected to the hollow shaft.

4. The oil inlet pipeline is connected to the branch pipeline, and the throttle valve is installed on the branch pipeline.

5. A hook plate is attached to the top cover, and a deep groove ball bearing is arranged between the hook plate and the middle of the rotor, and the two form a kinematic pair.

6. The oil outlet pipe extending out of the hole extends to the height of the base, and a vacuum pump is installed on the oil outlet pipe.

The advantage of this utility model is:

1. The observation hole of the top cover can easily observe the liquid level of the lubricating oil inside the rotor.

2. The oil outlet pipeline from the upper end can make good use of the filter screen area.

3. Opening the throttle valve can divert the flow when the lubricating oil level in the rotor is too high.

4. Three cocks are installed at the bottom of the rotor, which can be stopped at any time to discharge sludge and impurities.

5. The three slots inside the rotor can be inserted into filters of different density at any time, and the top cover can be opened and replaced at any time when necessary.

6. The rotating speed of ordinary centrifugal lubricating oil filter is as high as 5000r/min or more, the rotating speed of this device can be set relatively low, and the safety of this device is better.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Figure 2 is a cross-sectional view of the rotor;

Figure 3 is a schematic view of the structure of the hollow shaft.

Detailed ways

The present utility model is described in more detail below in conjunction with the accompanying drawings:

1-3, a multi-stage filtering centrifugal lubricating oil filter applied to a marine low-speed engine of the present invention mainly includes: an observation oil plug 1, a top cover 2, an oil outlet pipe 3, a through bolt 4, a rotor 5 , base 6, throttle valve 7, transmission gear shaft 8. A cock is installed in the observation hole in the middle of the top cover 2; earrings and bolt holes are processed around the top cover 2; A large-diameter deep groove ball bearing is installed outside the rotor 5; the support plate of the top cover 2 supports the deep groove ball bearing to make a slide rail for the rotor to rotate. There are three-layer filter mesh slots in the rotor 5, and three cocks are installed at the bottom end. The hollow shaft with holes at the bottom end of the rotor 5 is integrated with the rotor 5; the bottom end of the hollow shaft is provided with a transmission gear; the bottom end of the hollow shaft is equipped with a sealing ring and a deep groove ball bearing. Four through bolts 4 connect the bolt holes of the top cover 2 and the bolt holes of the base 6 . The throttle valve 7 is installed in the branch oil passage of the base 6 . The transmission gear shaft meshes with the hollow shaft gear. The hollow shaft integrated with the rotor 5 is composed of an oil throwing hole, a follow-up gear, an oil-separating seal ring, and a tapered roller bearing.

Observe that the oil plug 1 is plugged into the observation hole of the top cover 2, and observe the contact between the oil plug 1 and the top cover 2 by adding an oil-resistant rubber sealing ring made of polytetrafluoroethylene. A deep groove ball bearing is added between the top cover 2 and the rotor 5, so that a rotating motion pair is formed between the rotor 5 and the top cover 2. The top cover 2 is attached with a hook plate, and a set of deep groove ball bearings is added between the rotor 5 and the rotor 5 to form a kinematic pair between the rotor 5 and the top cover hook plate. Holes are machined in the top cover 2 for placing the oil outlet pipe 3. The oil outlet pipe 3 starts from the outermost layer of the rotor 5 and extends to the outside of the entire device. If you want to speed up the oil output rate, you can install a vacuum pump on the oil outlet pipe. Four earrings are machined around the top cover 2, and bolt holes are machined on them. A bearing groove is machined in the middle of the outer side of the rotor 5, and a bearing groove is machined in the upper part of the inner side. The bottom of the rotor is a hollow shaft integrated with the rotor body, and the hollow shaft has a whole hole; the upper end of the hollow shaft is processed with mesh 9; the lower part of the hollow shaft is added with a transmission gear 10; The roller bearing 12 and the sealing ring 11 made of nitrile rubber. The base 6 is used for oil intake, and is processed into a boss shape to wrap the lower end of the drive shaft; the oil intake pipeline is arranged around the boss according to the arrangement in the figure. A throttle valve 7 is installed on the branch line of the oil inlet line. The drive gear of the drive shaft and the hollow shaft drive gear mesh with each other. Four thick through bolts 4 connect the bolt holes of the top cover and the base.

The lubricating oil with sludge and impurities in the internal combustion engine enters the base 6 through the oil inlet pipe of the base, and the throttle valve 7 is in a closed state at this time. At this time, the lubricating oil with impurities enters the rotor through the rotating hollow shaft. The hollow shaft is integrated with the rotor 5. The hollow shaft is driven by the transmission gear shaft 8 through the follower gear 10 to drive the rotor 5 to rotate together. Due to the large turning radius of the rotor 5, the rotor 5 can achieve a good filtering effect without a high rotational speed.

As shown in Figure 1, four through bolts 4 replace the bulky housing of the ordinary filter, and the thick bolt rod can ensure good structural strength of the device, and can also reduce the weight of the device; the lower rotation speed is conducive to the stable installation of the device. run. An observation oil hole is processed in the middle of the top cover 2. Once it is observed that the oil level inside the rotor 5 is too high through the observation oil hole, immediately tighten the observation oil plug 1, and at the same time open the throttle valve 7 to divert the oil inlet pipe, so that the rotor 5 liquid bit down. Then open the observation plug 1 to observe the liquid level in real time. If the liquid level continues to rise, a vacuum pump can be installed in the oil outlet pipe 3 to assist oil suction.

As shown in Figure 2, the three filter screen placement slots can make different mesh size filter screens, and can be taken out and replaced at any time when the machine is stopped. The sludge and impurities at the bottom can be discharged from the rotor 5 through the bottom cock.

As shown in Fig. 3, the processing of the hollow shaft at the bottom of the rotor 5 is relatively complicated, the lubricating oil enters from the bottom end, and holes 9 are machined around the hollow shaft so that the lubricating oil can be thrown out. The hollow shaft is integrated with the rotor 5, and forms a deep groove ball bearing, a deep groove ball bearing, a tapered roller bearing with the fixed end and forms three rotating pairs with the fixed end.

Claims (8)

1. a multi-stage filtering centrifugal lubricating oil filter applied to a marine low-speed engine is characterized in that: comprising a top cover, a rotor, a base, the top cover and the base all extend out earrings, and bolt holes are all provided on the earrings, each The earrings of the top cover correspond to the earrings of the base, thus forming a pair of earrings, each pair of earrings are connected by installing through bolts in their bolt holes, the rotor is installed between the top cover and the base, and the depth is set between the top cover and the rotor. The groove ball bearing forms a rotating motion pair, an observation hole is set on the top cover, the observation oil plug is plugged in the observation hole, the top cover is machined with holes, the oil outlet pipe is installed in the rotor, and extends from the hole to the outside of the rotor. 2. A kind of multi-stage filtering centrifugal lubricating oil filter applied to marine low-speed engine according to claim 1, it is characterized in that: described rotor comprises rotor casing, hollow shaft, and hollow shaft is installed in rotor casing The inner part is integrated with the rotor housing, the interior of the rotor housing is provided with three-layer slots for installing the filter screen, the bottom end of the rotor is provided with three cocks corresponding to the three-layer slots, the upper end of the hollow shaft is machined with meshes, and the lower part of the hollow shaft is installed The follower gear, the first sealing ring, the tapered roller bearing and the second sealing ring are installed on the hollow shaft under the follower gear, and the rotor forms a rotating pair with the base through the tapered roller bearing. 3. a kind of multi-stage filtering centrifugal lubricating oil filter applied to marine low-speed engine according to claim 2, is characterized in that: also comprises a transmission gear shaft, a transmission gear is installed on the transmission gear shaft, and the transmission gear and the accompanying The moving gears mesh. 4. A multi-stage filtering centrifugal lubricating oil filter applied to a marine low-speed engine according to claim 3, characterized in that: an oil inlet pipeline is arranged on the base, and the oil inlet pipeline communicates with the hollow shaft. 5. The multi-stage filtering centrifugal lubricating oil filter applied to a marine low-speed engine according to claim 4, characterized in that: the oil inlet pipeline branches out branch pipelines, and a throttle valve is installed on the branch pipelines. 6. A kind of multistage filtering centrifugal lubricating oil filter applied to marine low-speed engine according to any one of claims 1-5, it is characterized in that: a hook plate is attached to the top cover, and the hook plate and the middle part of the rotor are attached. Deep groove ball bearings are arranged between them, and the two form a kinematic pair. 7. A kind of multi-stage filtering centrifugal lubricating oil filter applied to any one of claims 1-5, characterized in that: the oil outlet pipe extending out of the hole extends to the height of the base, and the oil outlet pipe is Set up the vacuum pump. 8. A multi-stage filtering centrifugal oil filter applied to a marine low-speed engine according to claim 6, wherein the oil outlet pipe extending out of the hole extends to the height of the base, and a vacuum pump is arranged on the oil outlet pipe.

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