Lubricating device for fluid end of plunger pump

Abstract

The utility model provides a plunger pump fluid end lubricating device which comprises a fluid end body and an oil storage tank, an oil injection head is fixed on the fluid end body, the oil injection head is communicated with the fluid end body, an oil inlet pipe is arranged between the oil injection head and the oil storage tank, and an oil outlet pipe is arranged between the fluid end body and the oil storage tank. A blocking plate and a filtering plate are arranged in the oil storage tank in a sliding fit mode, and a collecting box is fixed to one side of the filtering plate and corresponds to the blocking plate. According to the hydraulic end, the oil injection head is installed on the hydraulic end body, lubricating liquid can be evenly fed into the hydraulic end body, so that the lubricating efficiency is improved, the blocking plate and the filtering plate are installed in the oil storage tank, the lubricating liquid can be filtered, impurities are prevented from being mixed in the lubricating liquid, and the lubricating effect is guaranteed; and the blocking plate can block the oil outlet pipe when the filter plate is cleaned, so that the lubricating liquid with impurities is prevented from flowing back into the fluid end body.

Description

Technical Field

[0001] The utility model relates to the technical field of lubrication devices, in particular to a lubrication device for the hydraulic end of a plunger pump. Background Art

[0002] A fracturing truck is a mobile device equipped with a horizontal five-cylinder high-pressure plunger pump on a chassis vehicle. It is mainly composed of a carrier chassis, a platform diesel engine, a liquid heater, a hydraulic transmission, a drive shaft, a brake device and a silicon shock absorber, a fracturing pump, a lubrication system, a gas system, a hydraulic system, an instrument control system, a high-pressure discharge manifold, a low-pressure suction manifold, a lighting system, etc. The plunger pump usually installed on the existing fracturing truck chassis is usually composed of a power end and a hydraulic end. The hydraulic end of the plunger pump is lubricated by continuously adding lubricating fluid. Although the hydraulic end of the existing fracturing truck can circulate the lubricating fluid, the lubricating fluid cannot be filtered during the circulation of the lubricating fluid, resulting in impurities in the lubricating fluid, which makes the lubricating effect of the lubricating fluid worse and affects the normal use of the hydraulic end.

[0003] To this end, the utility model provides a lubricating device for the hydraulic end of a plunger pump. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a lubricating device for the hydraulic end of a plunger pump to solve the problems raised in the above-mentioned background technology. The utility model can deliver the lubricating liquid into the hydraulic end body more evenly, thereby improving the lubrication efficiency; and can filter the lubricating liquid to prevent impurities from being mixed in the lubricating liquid, thereby ensuring the lubrication effect and preventing the lubricating liquid with impurities from flowing back into the hydraulic end body.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a plunger pump hydraulic end lubrication device, including a hydraulic end body and an oil storage tank, an oil filling head is fixed on the hydraulic end body, the oil filling head is connected with the hydraulic end body, an oil inlet pipe is installed between the oil filling head and the oil storage tank, an oil outlet pipe is installed between the hydraulic end body and the oil storage tank, a blocking plate and a filter plate are slidably matched in the oil storage tank, a collection box is fixed on one side of the filter plate, and the collection box corresponds to the blocking plate.

[0006] Furthermore, an oil outlet and a plurality of oil inlets are provided on the hydraulic end body, the oil outlet is connected to the oil outlet pipe, and the oil inlet is connected to the oil filling head.

[0007] Furthermore, a circulation pump is installed between the oil filling head and the oil storage tank, the liquid inlet end of the circulation pump is connected to the oil storage tank, and the liquid outlet end of the circulation pump is connected to the oil inlet pipe.

[0008] Furthermore, a buckle cover is installed on the oil storage tank, and the buckle cover is fixedly connected to the filter plate.

[0009] Furthermore, the blocking plate is located at the connection point between the oil outlet pipe and the oil storage tank, a slide groove is opened in the oil storage tank, the slide groove corresponds to the blocking plate, and a first limit plate is fixed in the oil storage tank.

[0010] Furthermore, a second limiting plate is fixed on one side of the blocking plate, the collecting box is located above the second limiting plate, and a plurality of springs are fixed between the second limiting plate and the inner wall of the oil storage tank.

[0011] Beneficial effects of the utility model: The utility model provides a lubricating device for the hydraulic end of a plunger pump, comprising a hydraulic end body, an oil injection head, an oil storage tank, a blocking plate, a filter plate, and an oil outlet pipe.

[0012] By installing an oiling head on the hydraulic end body, the lubricating liquid can be delivered into the hydraulic end body more evenly, thereby improving the lubrication efficiency. By installing a plugging plate and a filter plate in the oil storage tank, the lubricating liquid can be filtered to prevent the lubricating liquid from being mixed with impurities and ensure the lubrication effect. The plugging plate can block the oil outlet pipe when cleaning the filter plate to prevent the lubricating liquid with impurities from flowing back into the hydraulic end body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall assembly three-dimensional structure of a lubricating device for the hydraulic end of a plunger pump according to the utility model;

[0014] Figure 2 This is a schematic diagram of the overall assembly cross-sectional structure of a lubricating device for the hydraulic end of a plunger pump according to the utility model;

[0015] Figure 3 This is a schematic diagram of the assembly cross-sectional structure of an oil storage tank in a lubricating device of a plunger pump hydraulic end of the utility model;

[0016] In the figure: 1. hydraulic end body; 2. oil inlet; 3. oil outlet; 4. oil filling head; 5. oil inlet pipe; 6. oil outlet pipe; 7. circulation pump; 8. oil storage tank; 9. buckle cover; 10. handle; 11. blocking plate; 12. spring; 13. first limit plate; 14. second limit plate; 15. filter plate; 16. slide groove; 17. collection box. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] See also Figures 1 to 3The utility model provides a technical solution: a plunger pump hydraulic end lubrication device, including a hydraulic end body 1 and an oil storage tank 8, an oil filling head 4 is fixed on the hydraulic end body 1, the oil filling head 4 is connected with the hydraulic end body 1, an oil inlet pipe 5 is installed between the oil filling head 4 and the oil storage tank 8, an oil outlet pipe 6 is installed between the hydraulic end body 1 and the oil storage tank 8, a blocking plate 11 and a filter plate 15 are slidably matched in the oil storage tank 8, a collecting box 17 is fixed on one side of the filter plate 15, and the collecting box 17 corresponds to the blocking plate 11.

[0019] In this embodiment, an oil outlet 3 and a plurality of oil inlets 2 are provided on the hydraulic end body 1, the oil outlet 3 is connected to the oil outlet pipe 6, the oil inlet 2 is connected to the oil filling head 4, a circulating pump 7 is installed between the oil filling head 4 and the oil storage tank 8, the liquid inlet end of the circulating pump 7 is connected to the oil storage tank 8, and the liquid outlet end of the circulating pump 7 is connected to the oil inlet pipe 5.

[0020] Specifically, when lubricating, the circulation pump 7 is started so that the circulation pump 7 delivers the lubricating liquid in the oil storage tank 8 into the oil filling head 4, and then the lubricating liquid enters the hydraulic end body 1 through the oil inlet 2 for lubrication. At the same time, the lubricating liquid in the hydraulic end body 1 flows into the oil outlet pipe 6 through the oil outlet 3, and then is carried back to the oil storage tank 8, thereby realizing the circulation of the lubricating liquid.

[0021] A buckle cover 9 is installed on the oil storage tank 8, and the buckle cover 9 is fixedly connected to the filter plate 15. The blocking plate 11 is located at the connecting point between the oil outlet pipe 6 and the oil storage tank 8. A slide groove 16 is opened in the oil storage tank 8, and the slide groove 16 corresponds to the blocking plate 11. A first limit plate 13 is fixed in the oil storage tank 8, and a second limit plate 14 is fixed on one side of the blocking plate 11. The collecting box 17 is located above the second limit plate 14, and a plurality of springs 12 are fixed between the second limit plate 14 and the inner wall of the oil storage tank 8. A handle 10 is fixed on the upper side of the buckle cover 9.

[0022] Specifically, when the lubricating fluid circulates, the filter plate 15 can filter the lubricating fluid, and the impurities in the lubricating fluid are filtered out and then precipitated into the collecting box 17. When the impurities need to be cleaned, the handle 10 is pulled upward to pull out the buckle cover 9, so that the buckle cover 9 drives the filter plate 15 to be pulled out together, and the filter plate 15 drives the collecting box 17 to be pulled upward. At this time, the collecting box 17 no longer limits the second limit plate 14. Under the action of the spring, the blocking plate 11 slides upward until the blocking plate 11 blocks the connection between the oil outlet pipe 6 and the oil storage tank 8. At this time, the lubricating oil with impurities can be prevented from entering the oil storage tank 8, and the collected impurities can be processed, and it is also convenient to clean the filter plate 15 to ensure the filtering effect of the filter plate 15.

[0023] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A plunger pump fluid end lubrication device, comprising a fluid end body (1) and an oil storage tank (8), characterized in that: An oiling head (4) is fixed on the hydraulic end body (1), the oiling head (4) is connected to the hydraulic end body (1), an oil inlet pipe (5) is installed between the oiling head (4) and the oil storage tank (8), an oil outlet pipe (6) is installed between the hydraulic end body (1) and the oil storage tank (8), a blocking plate (11) and a filter plate (15) are slidably matched in the oil storage tank (8), a collecting box (17) is fixed on one side of the filter plate (15), and the collecting box (17) corresponds to the blocking plate (11).

2. A plunger pump hydraulic end lubrication device according to claim 1, characterized in that: The hydraulic end body (1) is provided with an oil outlet (3) and a plurality of oil inlets (2); the oil outlet (3) is connected to an oil outlet pipe (6), and the oil inlet (2) is connected to an oil injection head (4).

3. A plunger pump hydraulic end lubrication device according to claim 1, characterized in that: A circulation pump (7) is arranged between the oil filling head (4) and the oil storage tank (8); the liquid inlet end of the circulation pump (7) is connected to the oil storage tank (8), and the liquid outlet end of the circulation pump (7) is connected to the oil inlet pipe (5).

4. A plunger pump hydraulic end lubrication device according to claim 1, characterized in that: The oil storage tank (8) is provided with a buckle cover (9), which is fixedly connected to the filter plate (15).

5. A plunger pump hydraulic end lubrication device according to claim 1, characterized in that: The blocking plate (11) is located at the connection point between the oil outlet pipe (6) and the oil storage tank (8), a slide groove (16) is provided in the oil storage tank (8), the slide groove (16) corresponds to the blocking plate (11), and a first limit plate (13) is fixed in the oil storage tank (8).

6. A plunger pump hydraulic end lubrication device according to claim 1, characterized in that: A second limiting plate (14) is fixed to one side of the blocking plate (11), the collecting box (17) is located above the second limiting plate (14), and a plurality of springs (12) are fixed between the second limiting plate (14) and the inner wall of the oil storage tank (8).

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