Lubricating oil supply device of gear pump

Abstract

The utility model discloses a gear pump lubricating oil supply device, which relates to the technical field of gear pumps and comprises a gear pump body, a filter component and a supply oil pipe, one end of the supply oil pipe is fixedly communicated with the input end of the gear pump body, and the other end of the supply oil pipe is fixedly communicated with the output end of the filter component. The filtering assembly comprises an oil liquid guide device and a filtering bin, the lower end of the oil liquid guide device fixedly communicates with an oil inlet pipeline and an oil outlet pipeline, one end of the oil inlet pipeline is located at the bottom end of the interior of the filtering bin, and a filtering net and an impurity filtering and adsorbing assembly are arranged in the filtering bin; and the impurity filtering and adsorbing assembly is arranged below the filter screen. Lubricating oil is secondarily filtered through the impurity filtering and adsorbing assembly and the filter screen, impurities in the lubricating oil are fully removed, parts inside the gear pump body are protected, and the service life of the gear pump body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of gear pumps, in particular to a lubricating oil supply device for a gear pump. Background Art

[0002] A gear pump is a rotary pump that relies on the change and movement of the working volume formed between the pump cylinder and the meshing gears to transport or pressurize liquids. When using a gear pump to transport lubricating oil, a corresponding lubricating oil supply device is required to introduce the lubricating oil into the interior of the gear pump.

[0003] For example, a lubricating oil supply device for a gas turbine disclosed in Chinese Patent Publication No. CN217813695U has an oil suction filter inside the fuel tank. The oil outlet of the oil suction filter is connected to the oil inlet of the booster pump. The oil outlet of the booster pump is connected to the oil inlet of the duplex filter. The oil outlet of the duplex filter is connected to each lubrication point of the gas turbine. The oil and gas separator is inside the fuel tank. The oil inlet of the oil and gas separator is connected to the oil outlet of the heat exchanger. The oil inlet of the heat exchanger is connected to the oil outlet of the oil return pump. The oil inlet of the oil return pump is connected to each lubrication point of the gas turbine. The oil inlet of the gear pump group is connected to the oil outlet of the oil suction filter. The oil outlet of the gear pump group is connected to the fuel tank filling port. The fuel tank is also provided with a platinum resistance, a heater, a liquid level transmitter, a first pressure transmitter, a liquid level gauge and an air filter. The oil outlet of the oil suction filter is provided with a second pressure transmitter. A differential pressure transmitter is provided between the oil inlet and outlet of the duplex filter, and a flow meter is provided at the oil outlet of the duplex filter. A safety valve is provided between the oil outlet of the oil suction filter and the fuel tank filling port.

[0004] However, when the existing lubricating oil supply device supplies lubricating oil to the gear pump, the lubricating oil will carry impurities inside the pipeline and the fuel tank into the interior of the gear pump. The impurities flow along with the lubricating oil in parts such as gears and bearings, scratching the surfaces of the gears and bearings, increasing their wear, and may even block the oil circuit severely, resulting in the gear pump being unable to transport lubricating oil. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problem that in the prior art, the lubricating oil will carry impurities inside the pipeline and the fuel tank into the interior of the gear pump, and the impurities flow along with the lubricating oil in parts such as gears and bearings, scratching the surfaces of the gears and bearings and increasing their wear, and to propose a lubricating oil supply device for a gear pump.

[0006] To achieve the above object, the utility model adopts the following technical solutions: A lubricating oil supply device for a gear pump, comprising a gear pump main body, a filtering component and a supply oil pipe. One end of the supply oil pipe is fixedly communicated with the input end of the gear pump main body, and the other end of the supply oil pipe is fixedly communicated with the output end of the filtering component. The filtering component includes an oil guiding device and a filtering chamber. The lower end of the oil guiding device is fixedly communicated with an oil inlet pipe and an oil outlet pipe respectively. One end of the oil inlet pipe is located at the bottom end inside the filtering chamber. A filter screen and an impurity filtering and adsorbing component are arranged inside the filtering chamber, and the impurity filtering and adsorbing component is arranged below the filter screen.

[0007] Preferably, a mounting rod is fixedly installed at the center inside the filtering chamber. One end of the mounting rod is fixedly installed with a positioning ring. The filter screen is movably sleeved on one end of the mounting rod. The filter screen is located below the positioning ring. One end of the mounting rod is threadedly connected with a nut, and the nut is located above the positioning ring.

[0008] Preferably, the impurity filtering and adsorbing component includes a mounting sleeve, a porous ceramic plate and a plurality of filter paper mounting frames. The two porous ceramic plates are respectively fixedly installed at both ends of the mounting sleeve, and the plurality of filter paper mounting frames are fixedly installed between the two porous ceramic plates.

[0009] Preferably, a glass limiting filter paper is fixedly installed inside each of the plurality of filter paper mounting frames.

[0010] Preferably, one end of the oil inlet pipe sequentially penetrates through the two porous ceramic plates.

[0011] Preferably, a through hole is formed on one side of the filter screen, and the oil inlet pipe movably penetrates through the inside of the through hole.

[0012] Preferably, the oil guiding device and the filtering chamber are fixedly connected by bolts.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are as follows:

[0014] In the utility model, the lubricating oil is secondarily filtered by the impurity filtering and adsorbing component and the filter screen, and the impurities in the lubricating oil are fully removed, protecting the components inside the gear pump main body and prolonging the service life of the gear pump main body.

[0015] 2. In the utility model, rotate and remove the bolts between the oil guiding device and the filtering chamber, remove the filtering chamber, pour out the lubricating oil remaining inside the filtering chamber, rotate and remove the nut, remove the filter screen, and then remove the impurity filtering and adsorbing component from the mounting rod, and replace it with a brand-new impurity filtering and adsorbing component to ensure that the filtering chamber can continuously and stably filter the lubricating oil. Description of the Drawings

[0016] Figure 1 The utility model provides a three-dimensional structural schematic diagram of a gear pump lubricating oil supply device;

[0017] Figure 2 The utility model provides a three-dimensional structural schematic diagram of a filter assembly in a gear pump lubricating oil supply device;

[0018] Figure 3 The utility model provides a three-dimensional structural schematic diagram of a filter bin in a gear pump lubricating oil supply device;

[0019] Figure 4 The utility model provides a schematic diagram of the internal structure of a filter bin in a gear pump lubricating oil supply device.

[0020] Legend: 1. Gear pump body; 2. Filter assembly; 21. Oil guide; 211. Oil inlet pipe; 212. Oil outlet pipe; 22. Filter chamber; 221. Mounting rod; 222. Positioning ring; 223. Nut; 23. Filter screen; 231. Through hole; 24. Impurity filter adsorption assembly; 241. Mounting sleeve; 242. Porous ceramic plate; 243. Filter paper mounting bracket; 3. Oil supply pipe. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Embodiment 1: Figure 1 - Figure 4As shown, the utility model provides a gear pump lubricating oil supply device, including a gear pump body 1, a filter assembly 2 and an oil supply pipe 3, one end of the oil supply pipe 3 is fixedly connected to the input end of the gear pump body 1, and the other end of the oil supply pipe 3 is fixedly connected to the output end of the filter assembly 2, and the filter assembly 2 includes an oil guide 21 and a filter bin 22, and the lower end of the oil guide 21 is fixedly connected with an oil inlet pipeline 211 and an oil outlet pipeline 212, respectively, one end of the oil inlet pipeline 211 is located at the bottom end of the filter bin 22, and a filter screen 23 and an impurity filter adsorption assembly 24 are arranged inside the filter bin 22, and the impurity filter adsorption assembly 24 is arranged below the filter screen 23, and a mounting rod 221 is fixedly installed at the center of the filter bin 22, and a positioning ring 22 is fixedly installed at one end of the mounting rod 221 2. The filter screen 23 is movably sleeved on one end of the mounting rod 221, and the filter screen 23 is located below the positioning ring 222. One end of the mounting rod 221 is threadedly connected with a nut 223, and the nut 223 is located above the positioning ring 222. The impurity filtering and adsorption component 24 includes a mounting sleeve 241, a porous ceramic plate 242 and a plurality of filter paper mounting racks 243. Two porous ceramic plates 242 are respectively fixedly mounted on both ends of the mounting sleeve 241, and a plurality of filter paper mounting racks 243 are fixedly mounted between the two porous ceramic plates 242. Glass limit filter papers are fixedly mounted inside the filter paper mounting racks 243. One end of the oil inlet pipeline 211 passes through the two porous ceramic plates 242 in sequence. A through hole 231 is opened on one side of the filter screen 23, and the oil inlet pipeline 211 movably passes through the inside of the through hole 231.

[0024] The specific settings and functions of this embodiment are described in detail below. The lubricating oil enters the interior of the filter assembly 2, and is first introduced into the bottom end of the filter bin 22 through the oil inlet pipe 211. The lubricating oil first enters the impurity filtering and adsorption assembly 24. The porous ceramic plate 242 in the impurity filtering and adsorption assembly 24 first performs a preliminary filtration on the solid impurities in the lubricating oil, and the glass limiting filter paper in the filter paper mounting frame 243 performs a secondary adsorption and filtration on the finer particles in the lubricating oil. Finally, the lubricating oil passes through the impurity filtering and adsorption assembly 24 and the filter screen 23 and enters the supernatant layer of the filter bin 22. The lubricating oil is secondary filtered by the impurity filtering and adsorption assembly 24 and the filter screen 23 to fully remove impurities in the lubricating oil, protect the internal components of the gear pump body 1, and extend the service life of the gear pump body 1. The oil enters the interior of the supply oil pipe 3 from the oil outlet pipe 212, and is then transported from the supply oil pipe 3 to the interior of the gear pump body 1, completing the filtering and transportation operations of the oil.

[0025] Embodiment 2: Figure 1 - Figure 4As shown in the figure, it includes a gear pump body 1, a filtering component 2, and a supply oil pipe 3. One end of the supply oil pipe 3 is fixedly communicated with the input end of the gear pump body 1, and the other end of the supply oil pipe 3 is fixedly communicated with the output end of the filtering component 2. The filtering component 2 includes an oil guiding device 21 and a filtering chamber 22. The lower end of the oil guiding device 21 is fixedly communicated with an oil inlet pipe 211 and an oil outlet pipe 212 respectively. One end of the oil inlet pipe 211 is located at the bottom end inside the filtering chamber 22. A filter screen 23 and an impurity filtering and adsorbing component 24 are arranged inside the filtering chamber 22. The impurity filtering and adsorbing component 24 is arranged below the filter screen 23. The impurity filtering and adsorbing component 24 includes a mounting sleeve 241, a porous ceramic plate 242, and a plurality of filter paper mounting frames 243. Two porous ceramic plates 242 are respectively fixedly installed at both ends of the mounting sleeve 241. A plurality of filter paper mounting frames 243 are fixedly installed between the two porous ceramic plates 242. The oil guiding device 21 and the filtering chamber 22 are fixedly connected by bolts.

[0026] The effect achieved by the entire embodiment is that when the impurity filtering and adsorbing component 24 has adsorbed a sufficient amount of impurities and does not have a good impurity adsorption effect, rotate and remove the bolts between the oil guiding device 21 and the filtering chamber 22, remove the filtering chamber 22, pour out the lubricating oil remaining inside the filtering chamber 22, rotate and remove the nut 223, remove the filter screen 23, and then remove the impurity filtering and adsorbing component 24 from the mounting rod 221, and replace it with a brand-new impurity filtering and adsorbing component 24 to ensure that the filtering chamber 22 can continuously and stably filter the lubricating oil.

[0027] The usage method and working principle of this device: The lubricating oil enters the inside of the filtering component 2, and is first introduced into the bottom end inside the filtering chamber 22 through the oil inlet pipe 211. The lubricating oil first enters the impurity filtering and adsorbing component 24. The porous ceramic plate 242 in the impurity filtering and adsorbing component 24 first preliminarily filters the solid impurities in the lubricating oil. The glass limiting filter paper in the filter paper mounting frame 243 performs secondary adsorption and filtration on the finer particles in the lubricating oil. Finally, the lubricating oil passes through the impurity filtering and adsorbing component 24 and the filter screen 23 and enters the supernatant layer of the filtering chamber 22. The oil liquid enters the inside of the supply oil pipe 3 through the oil outlet pipe 212, and is then transported from the supply oil pipe 3 to the inside of the gear pump body 1 to complete the filtering and transportation operations of the oil liquid. When the impurity filtering and adsorbing component 24 has adsorbed a sufficient amount of impurities and does not have a good impurity adsorption effect, rotate and remove the bolts between the oil guiding device 21 and the filtering chamber 22, remove the filtering chamber 22, pour out the lubricating oil remaining inside the filtering chamber 22, rotate and remove the nut 223, remove the filter screen 23, and then remove the impurity filtering and adsorbing component 24 from the mounting rod 221, and replace it with a brand-new impurity filtering and adsorbing component 24.

[0028] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model in other forms. Any person skilled in the relevant art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present utility model, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A lubricating oil supply device for a gear pump, comprising a gear pump main body (1), a filtering assembly (2) and a supply oil pipe (3). One end of the supply oil pipe (3) is fixedly communicated with the input end of the gear pump main body (1), and the other end of the supply oil pipe (3) is fixedly communicated with the output end of the filtering assembly (2), characterized in that: The filter assembly (2) comprises an oil guide (21) and a filter chamber (22); the lower end of the oil guide (21) is fixedly connected to an oil inlet pipeline (211) and an oil outlet pipeline (212), one end of the oil inlet pipeline (211) is located at the bottom of the filter chamber (22); a filter screen (23) and an impurity filter adsorption assembly (24) are arranged inside the filter chamber (22); the impurity filter adsorption assembly (24) is arranged below the filter screen (23).

2. The lubricating oil supply device for a gear pump according to claim 1, characterized in that: A mounting rod (221) is fixedly mounted at the center of the filter bin (22); a positioning ring (222) is fixedly mounted on one end of the mounting rod (221); the filter net (23) is movably sleeved on one end of the mounting rod (221); the filter net (23) is located below the positioning ring (222); a nut (223) is threadedly connected to one end of the mounting rod (221); and the nut (223) is located above the positioning ring (222).

3. The lubricating oil supply device for a gear pump according to claim 1, characterized in that: The impurity filtering and adsorption assembly (24) comprises a mounting sleeve (241), a porous ceramic plate (242) and a plurality of filter paper mounting frames (243); two porous ceramic plates (242) are respectively fixedly mounted at two ends of the mounting sleeve (241); and a plurality of filter paper mounting frames (243) are fixedly mounted between the two porous ceramic plates (242).

4. The lubricating oil supply device for a gear pump according to claim 3, wherein: Glass limiting filter papers are fixedly installed inside the plurality of filter paper mounting frames (243).

5. The lubricating oil supply device for a gear pump according to claim 3, wherein: One end of the oil inlet pipeline (211) passes through two porous ceramic plates (242) in sequence.

6. The lubricating oil supply device for a gear pump according to claim 1, characterized in that: A through hole (231) is provided on one side of the filter screen (23), and the oil inlet pipeline (211) movably passes through the interior of the through hole (231).

7. A lubricating oil supply device for a gear pump according to claim 1, characterized in that: The oil guide (21) is fixedly connected to the filter bin (22) by means of bolts.

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