Gear oil pump with filtering device

Abstract

The utility model relates to a gear oil pump with a filtering device, which belongs to the technical field of gear oil pumps and comprises a gear oil pump body, an oil outlet end and an oil inlet end, the oil outlet end and the oil inlet end are arranged on the left side and the right side of the gear oil pump body, and a filtering structure is arranged at one end of the oil inlet end far away from the gear oil pump body. The filtering structure comprises a filtering pipe, a filtering net arranged in the filtering pipe in a sliding manner and two convex blocks fixedly mounted on the opposite sides of the filtering net; positioning assemblies are arranged in the two convex blocks, and each positioning assembly comprises a sleeve arranged in the corresponding convex block, a reset spring fixedly mounted in the corresponding sleeve and a clamping block which is fixedly mounted at the other end of the corresponding reset spring and penetrates through the interior of the filter pipe. According to the gear oil pump with the filtering device, impurities can be prevented from entering the gear oil pump body, meanwhile, the filtering net can be cleaned, protection on the gear oil pump body is enhanced, the service life of the gear oil pump body is prolonged, and therefore the gear oil pump has the advantages of being high in practicability, having the filtering effect and the like.

Description

Technical Field

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

[0002] In large-scale industrial production, especially in industrial production of large-scale oil delivery such as oil injection, oil purification, oil filtration, etc., gear oil pumps are commonly used as necessary equipment and are suitable for conveying turbine oil, transformer oil, aviation oil, machine oil, diesel, edible oil and other liquid oils in fertilizer plants, refineries, oil mills, power plants, power stations, substations, lubricating oil depots, capacitor plants, paint plants, food departments and other industrial and mining enterprises. The temperature of the pressure medium of the oil is below 60℃, the Eng viscosity is below 100E, and it is non-corrosive heavy oil, medium oil, industrial light oil, edible oil and other similar oils. However, it is not suitable for conveying unclean oils and lubricating and corrosive media.

[0003] However, the existing gear oil pumps used in the industry often get stuck and damaged when conveying oil because of impurities in the oil, which affects the normal operation of the gear oil pump and poses a great safety hazard. Therefore, it cannot meet the use requirements, so a gear oil pump with a filtering device is proposed to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a gear oil pump with a filtering device, which has the advantages of strong practicality and filtering effect, and solves the problem that the gear oil pump is often stuck and damaged due to impurities mixed in the oil when conveying oil.

[0005] To achieve the above object, the utility model provides the following technical solution: a gear oil pump with a filtering device, comprising a gear oil pump body, an oil outlet and an oil inlet arranged on the left and right sides of the gear oil pump body, wherein a filtering structure is arranged at one end of the oil inlet away from the gear oil pump body;

[0006] The filtering structure comprises a filtering tube, a filtering screen slidably arranged inside the filtering tube, and two protrusions fixedly installed on opposite sides of the filtering screen;

[0007] The two protrusions are both provided with positioning components, which include a sleeve arranged inside the protrusion, a reset spring fixedly installed inside the sleeve, and a block fixedly installed at the other end of the reset spring and passing through the inside of the filter tube.

[0008] Furthermore, a mounting groove for mounting the filter screen is provided inside the filter tube, and a groove matched with the convex block is provided inside the mounting groove, and the convex block is slidably connected with the groove.

[0009] Furthermore, a handle is fixedly mounted on the upper surface of the filter screen by means of bolts, and a sealing gasket is mounted at the top of the filter screen to seal the top of the mounting groove.

[0010] Furthermore, connecting flanges are welded to both left and right ends of the filter tube, mounting holes are provided inside the two connecting flanges, and the filter tube is connected and fixed to the oil inlet end by the cooperation of the connecting flanges and bolts.

[0011] Furthermore, the left and right ends of the filter tube are connected, and through holes connected to the filter tube are provided inside the two connecting flanges.

[0012] Furthermore, a mounting block for fixing is welded to one end of the sleeve close to the clamping block, and the mounting block is mounted on a side of the protrusion away from the filter screen by bolts.

[0013] Compared with the prior art, the utility model provides a gear oil pump with a filtering device, which has the following beneficial effects:

[0014] 1. The gear oil pump with a filtering device can prevent impurities from entering the gear oil pump body, and can clean the filter screen at the same time, strengthen the protection of the gear oil pump body, and greatly improve the service life of the gear oil pump body, thereby achieving the advantages of strong practicality and filtering effect, and solving the problem that the gear oil pump is often stuck and damaged due to impurities mixed in the oil when conveying oil.

[0015] 2. The gear oil pump with a filtering device can move the filter out of the filter tube by installing a handle, which is convenient for subsequent cleaning of the filter. The reset spring and the block can strengthen the installation of the over-fast net to prevent the filter from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0017] Figure 2 This is a structural stereogram of the filter tube of the utility model;

[0018] Figure 3 This is a structural stereogram of the filter screen of the utility model;

[0019] Figure 4 This is a structural cross-sectional view of the protrusion of the utility model;

[0020] Figure 5 For this utility model Figure 2 A is a schematic diagram of the enlarged structure shown;

[0021] Figure 6 For this utility model Figure 3 Schematic diagram of the enlarged structure of B shown.

[0022] In the figure: 1. gear oil pump body; 2. oil inlet end; 3. oil outlet end; 4. filter tube; 5. connecting flange; 6. filter screen; 7. handle; 8. through hole; 9. mounting groove; 10. protrusion; 11. groove; 12. sleeve; 13. reset spring; 14. clamp block; 15. mounting block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-6 A gear oil pump with a filtering device comprises a gear oil pump body 1, an oil outlet 3 and an oil inlet 2 arranged on the left and right sides of the gear oil pump body 1, and a filtering structure is arranged at the end of the oil inlet 2 away from the gear oil pump body 1; the filtering structure comprises a filter tube 4, a filter screen 6 slidably arranged inside the filter tube 4, and two protrusions 10 fixedly installed on the opposite side of the filter screen 6; connecting flanges 5 are welded on both ends of the filter tube 4, and mounting holes are opened inside the two connecting flanges 5, and the filter tube 4 is connected and fixed to the oil inlet 2 through the cooperation of the connecting flanges 5 and bolts.

[0025] It should be noted that the gear oil pump body 1 is composed of a base, a driving device, a valve body, a driving gear and a driven gear, a cavity is provided in the valve body, and the driving gear and the driven gear are installed in the cavity. The driving device is connected and fixed to one end of the driving gear.

[0026] In this embodiment, a positioning assembly is provided inside the two protrusions 10, and the positioning assembly includes a sleeve 12 arranged inside the protrusion 10, a reset spring 13 fixedly installed inside the sleeve 12, and a block 14 fixedly installed at the other end of the reset spring 13 and passing through the filter tube 4.

[0027] The filter tube 4 has an installation groove 9 for installing the filter screen 6, and the installation groove 9 has a groove 11 adapted to the protrusion 10, and the protrusion 10 is slidably connected with the groove 11. The filter screen 6 is placed in the installation groove 9, and the protrusion 10 is connected with the groove 11 to ensure that the filter screen 6 is accurately installed in the filter tube 4, so that the filter screen 6 is initially fixed.

[0028] In this embodiment, a handle 7 is fixedly installed on the upper surface of the filter screen 6 by bolts, and the filter screen 6 can be moved out of the filter tube 4 by installing the handle 7, so as to facilitate the subsequent cleaning of the filter screen 6. A sealing gasket is installed at the top of the filter screen 6 to seal the top of the installation groove 9, which can seal the top of the filter tube 4 to prevent oil leakage.

[0029] It should be noted that the left and right ends of the filter tube 4 are connected, and the two connecting flanges 5 are provided with through holes 8 connected to the filter tube 4. A mounting block 15 for mounting and fixing is welded to one end of the sleeve 12 close to the clamping block 14, and the mounting block 15 is bolted to the side of the protrusion 10 away from the filter screen 6.

[0030] It can be understood that, through the reaction force of the return spring 13, the block 14 is inserted into and passes through the filter tube 4, further fixing the filter screen 6, and filtering is performed through the filter screen 6, thereby preventing impurities from entering the gear oil pump body 1 and increasing the wear between the driving gear and the driven gear, thereby protecting the driving gear and the driven gear and extending the service life of the two gears.

[0031] The working principle of the above embodiment is:

[0032] When in use, press the block 14 to extend it toward the inside of the sleeve 12 and squeeze the reset spring 13, then put the filter screen 6 into the installation groove 9, connect it with the groove 11 through the protrusion 10, ensure that the filter screen 6 is accurately installed in the filter tube 4, and achieve preliminary fixation of the filter screen 6. As the filter screen 6 moves downward, the reaction force of the reset spring 13 causes the block 14 to be inserted into and pass through the filter tube 4, further fixing the filter screen 6, and filtering through the filter screen 6, thereby preventing impurities from entering the gear oil pump body 1 and increasing the wear between the driving gear and the driven gear, protecting the driving gear and the driven gear, and extending the service life of the two gears.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gear oil pump with a filtering device, comprising a gear oil pump body (1), an oil outlet (3) and an oil inlet (2) arranged on the left and right sides of the gear oil pump body (1), characterized in that: The oil inlet end (2) is provided with a filtering structure at one end away from the gear oil pump body (1); The filtering structure comprises a filtering tube (4), a filtering screen (6) slidably arranged inside the filtering tube (4), and two protrusions (10) fixedly mounted on opposite sides of the filtering screen (6); A positioning assembly is disposed inside each of the two protrusions (10), the positioning assembly comprising a sleeve (12) disposed inside the protrusion (10), a return spring (13) fixedly mounted inside the sleeve (12), and a clamping block (14) fixedly mounted at the other end of the return spring (13) and penetrating the interior of the filter tube (4).

2. The gear oil pump with a filtering device according to claim 1, characterized in that: The filter tube (4) is provided with a mounting groove (9) for mounting the filter screen (6), and the mounting groove (9) is provided with a groove (11) adapted to the convex block (10), and the convex block (10) is slidably connected to the groove (11).

3. The gear oil pump with a filtering device according to claim 1, characterized in that: A handle (7) is fixedly mounted on the upper surface of the filter screen (6) by means of bolts, and a sealing gasket is mounted at the top of the filter screen (6) to seal the top of the mounting groove (9).

4. The gear oil pump with a filtering device according to claim 1, characterized in that: Connecting flanges (5) are welded to both left and right ends of the filter tube (4), mounting holes are provided inside the two connecting flanges (5), and the filter tube (4) is connected and fixed to the oil inlet end (2) by the cooperation of the connecting flanges (5) and bolts.

5. The gear oil pump with a filtering device according to claim 4, characterized in that: The left and right ends of the filter tube (4) are connected, and through holes (8) communicating with the filter tube (4) are provided inside the two connecting flanges (5).

6. The gear oil pump with a filtering device according to claim 1, characterized in that: A mounting block (15) for mounting and fixing is welded to one end of the sleeve (12) close to the clamping block (14); the mounting block (15) is mounted on a side of the protrusion (10) away from the filter screen (6) by means of bolts.

Images