Return oil filtering device of engineering machinery

Abstract

The utility model relates to the technical field of engineering machinery, in particular to a return oil filtering device of engineering machinery, which comprises a connecting pipe and a mounting component, the mounting component is arranged on the side surface of the connecting pipe and comprises a fixing pipe, and the fixing pipe is fixedly connected to the side surface of the connecting pipe. A supporting ring is slidably connected to the side surface of the fixing pipe, a rotating groove is formed in the side surface of the supporting ring, and a rotating ring is slidably connected into the rotating groove. When the return oil filtering device of the engineering machinery is used, through sliding connection between a sliding groove and a sliding block, a supporting ring, a rotating ring and a first mounting ring can be pushed to move upwards during working, the first mounting ring can be connected with a second connecting ring, and a connecting pipe can be fixedly mounted at the bottom of an oil return pipe; and a worker can conveniently disassemble and assemble the filtering device, so that the filtering device and scrap iron can be cleaned, and the practicability of the device can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to an oil return filtering device of engineering machinery. Background Art

[0002] Construction machinery is an important part of the equipment industry. In the hydraulic system of construction machinery, oil return refers to the process of hydraulic oil returning from actuators (such as hydraulic cylinders and hydraulic motors) to the oil tank. Under the action of the hydraulic pump, the hydraulic oil is transported to the actuator to drive the actuator to work. After completing the corresponding action, the hydraulic oil needs to flow back to the oil tank for recycling.

[0003] During the oil return process, iron filings are generated due to the wear of hydraulic components. Most construction machinery are equipped with an oil return filter device to filter the hydraulic oil of the entire machine. However, the filter device is usually installed with fixed bolts, which makes it difficult to disassemble and assemble the filter device when it is necessary to clean the filter device and the iron filings. For this reason, we propose a return oil filter device for construction machinery. Utility Model Content

[0004] The present invention aims to provide an oil return filter device for engineering machinery to solve the problem of the troublesome disassembly and assembly process when cleaning the filter device and iron filings in the above-mentioned background art. To achieve the above-mentioned purpose, the present invention provides the following technical solution: an oil return filter device for engineering machinery, comprising a connecting pipe and a mounting assembly, the mounting assembly being arranged on the side surface of the connecting pipe, the mounting assembly comprising a fixing pipe, the fixing pipe being fixedly connected to the side surface of the connecting pipe, the side surface of the fixing pipe being slidably connected to a support ring, the side surface of the support ring being provided with a rotating groove, the interior of the rotating groove being slidably connected to a rotating ring, the side surface of the rotating ring being fixedly connected to a mounting ring 1, the interior of the mounting ring 1 being provided with a threaded groove 1, when the device is used, the sliding connection between the sliding groove and the slider allows the support ring, the rotating ring, and the mounting ring 1 to move upward, so that the mounting ring 1 can be connected to the connecting ring 2, so that the connecting pipe can be fixedly mounted at the bottom of the oil return pipe, so that the operator can conveniently disassemble and assemble the filter device, so that the filter device and iron filings can be cleaned, so that the practicality of the device can be improved.

[0005] Further preferably, the interior of the connecting pipe is fixedly connected to a mounting ring 2, the interior of the mounting ring 2 is fixedly connected to a filter screen, and a connecting component is provided on the top of the connecting pipe, which can filter iron filings in the hydraulic oil to ensure the normal operation of the engineering machinery.

[0006] Further preferably, the connecting assembly includes an oil return pipe, which is movably connected to the top of the connecting pipe, and the side surface of the oil return pipe is fixedly connected to a connecting ring 2, the side surface of the connecting ring 2 is adapted to the interior of the mounting ring 1, and the side surface of the connecting ring 2 is provided with a thread groove 2, the outer side of the thread groove 2 is threadedly connected to the inner side of the thread groove 1, and the connecting ring 2 is provided with a mounting groove 1.

[0007] Further preferably, a sealing ring is fixedly connected to the top of the fixed tube, the side surface of the sealing ring is adapted to the interior of the mounting groove, and two sliding grooves are provided on the side surface of the fixed tube, so that the sealing ring can seal the return oil pipe and the connecting pipe to prevent leakage of hydraulic oil and ensure the normal operation of the engineering machinery.

[0008] Further preferably, the interiors of the two slide grooves are respectively slidably connected with sliders, and the outer sides of the sliders are fixedly connected to the interior of the support ring, which can limit the support ring and ensure the stability of the installation of the device.

[0009] Further preferably, the side surface of the fixed tube is fixedly connected with a mounting ring three, the side surface of the mounting ring three is provided with a threaded groove three, and the bottom of the mounting ring three is provided with a mounting groove two, so that it can be connected to the oil cylinder to ensure the normal operation of the engineering machinery, thereby improving the adaptability of the device.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] In the utility model, when the device is used, the sliding connection between the slide groove and the slider can be used to push the support ring, the rotating ring, and the mounting ring 1 to move upward, so that the mounting ring 1 can be connected to the connecting ring 2, so that the connecting pipe can be fixedly installed at the bottom of the oil return pipe, so that the staff can easily disassemble and assemble the filter device, and can clean the filter device and iron filings, so as to improve the practicality of the device.

[0012] In the utility model, when performing the connection work, the staff can insert the sealing ring into the inside of the installation groove 1, so that the connecting pipe can be connected to the return oil pipe, and the sealing ring can seal the return oil pipe and the connecting pipe to prevent leakage of hydraulic oil and ensure the normal operation of the engineering machinery. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0015] Figure 3 For this utility model Figure 2 Schematic diagram of the structure at a;

[0016] Figure 4 This is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 5 For this utility model Figure 4 Schematic diagram of the structure at c in the middle;

[0018] Figure 6 For this utility model Figure 4 Schematic diagram of the structure at point c in the middle.

[0019] In the figure: 1. Connecting pipe; 2. Mounting assembly; 201. Fixed pipe; 202. Support ring; 203. Rotating groove; 204. Rotating ring; 205. Mounting ring one; 206. Threaded groove one; 3. Mounting ring two; 4. Filter; 5. Connecting assembly; 501. Oil return pipe; 502. Connecting ring two; 503. Threaded groove two; 504. Mounting groove one; 6. Sealing ring; 7. Slide groove; 8. Slider; 9. Mounting ring three; 10. Threaded groove three; 11. Mounting groove two. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0021] See also Figures 1-6 The utility model provides a technical solution: a return oil filter device for engineering machinery, comprising a connecting pipe 1 and a mounting assembly 2, the mounting assembly 2 being arranged on the side surface of the connecting pipe 1, the mounting assembly 2 comprising a fixed pipe 201, the fixed pipe 201 being fixedly connected to the side surface of the connecting pipe 1, a support ring 202 being slidably connected to the side surface of the fixed pipe 201, a rotating groove 203 being provided on the side surface of the support ring 202, a rotating ring 204 being slidably connected inside the rotating groove 203, a mounting ring 205 being fixedly connected to the side surface of the rotating ring 204, a threaded groove 206 being provided inside the mounting ring 205.

[0022] In this embodiment, Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 6As shown, the interior of the connecting pipe 1 is fixedly connected to a mounting ring 2 3, and the interior of the mounting ring 2 3 is fixedly connected to a filter screen 4. A connecting component 5 is provided on the top of the connecting pipe 1, and the connecting component 5 includes a return oil pipe 501, and the return oil pipe 501 is movably connected to the top of the connecting pipe 1. The side surface of the return oil pipe 501 is fixedly connected to a connecting ring 2 502, and the side surface of the connecting ring 2 502 is adapted to the interior of the mounting ring 1 205. The side surface of the connecting ring 2 502 is provided with a thread groove 2 503, and the outer side of the thread groove 2 503 is threadedly connected to the inner side of the thread groove 1 206. The connecting ring 2 502 is provided with a mounting groove 1 504. Through the threaded connection between the thread groove 1 206 and the thread groove 2 503, the mounting ring 1 205 can be installed to the outer side of the connecting ring 2 502, so that the connecting pipe 1 can be fixedly installed at the bottom of the return oil pipe 501, so that the filter screen 4 can filter the residue in the hydraulic oil.

[0023] In this embodiment, Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 6 As shown, a sealing ring 6 is fixedly connected to the top of the fixed tube 201, and the side surface of the sealing ring 6 is adapted to the interior of the mounting groove 1 504. Two sliding grooves 7 are provided on the side surface of the fixed tube 201, and sliders 8 are respectively slidably connected to the interior of the two sliding grooves 7. The outer sides of the sliders 8 are fixedly connected to the interior of the support ring 202. A mounting ring 3 9 is fixedly connected to the side surface of the fixed tube 201, and a threaded groove 3 10 is provided on the side surface of the mounting ring 3 9. A mounting groove 2 11 is provided on the bottom of the mounting ring 3 9. When using the device, the staff can first insert the sealing ring 6 into the interior of the mounting groove 1 504, so that the sealing ring 6 can seal the return oil pipe 501 and the connecting pipe 1, so that the connecting pipe 1 can be connected to the return oil pipe 501.

[0024] The use method and advantages of this utility model: When the oil return filter device of the engineering machinery is used, the working process is as follows:

[0025] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6As shown, when using the device, the staff can first insert the sealing ring 6 into the inside of the installation groove 1 504, so that the sealing ring 6 can seal the return oil pipe 501 and the connecting pipe 1, so that the connecting pipe 1 can be connected to the return oil pipe 501, and then through the sliding connection between the sliding groove 7 and the slider 8, the staff can push the support ring 202, the rotating ring 204, and the installation ring 1 205 to move upward, so that the installation ring 1 205 can be connected to the connecting ring 2 502, and then through the rotation connection between the rotating groove 203 and the rotating ring 204, the staff can drive the installation ring 1 205 to rotate, and then Afterwards, through the threaded connection between the thread groove 1 206 and the thread groove 2 503, the mounting ring 1 205 can be installed on the outside of the connecting ring 2 502, so that the connecting pipe 1 can be fixedly installed at the bottom of the return oil pipe 501, so that the filter 4 can filter the residue in the hydraulic oil. After the filter 4 has been used for a long time, the staff can rotate the mounting ring 1 205 in the opposite direction so that the mounting ring 1 205 can be removed from the outside of the connecting ring 2 502, so that the connecting pipe 1 can be released from the fixed connection with the return oil pipe 501, so that the staff can remove the connecting pipe 1 to collect the residue and clean the filter 4.

[0026] The above shows and describes the basic principles, main features, and advantages of the present invention. Persons skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A return oil filter device for engineering machinery, comprising a connecting pipe (1) and a mounting assembly (2), characterized in that: The mounting assembly (2) is arranged on the side surface of the connecting pipe (1), and the mounting assembly (2) comprises a fixed pipe (201), the fixed pipe (201) is fixedly connected to the side surface of the connecting pipe (1), the side surface of the fixed pipe (201) is slidably connected to a support ring (202), the side surface of the support ring (202) is provided with a rotation groove (203), the interior of the rotation groove (203) is slidably connected to a rotation ring (204), the side surface of the rotation ring (204) is fixedly connected to a mounting ring 1 (205), and the interior of the mounting ring 1 (205) is provided with a threaded groove 1 (206).

2. The oil return filter device for engineering machinery according to claim 1, characterized in that: The interior of the connecting pipe (1) is fixedly connected to a second mounting ring (3), the interior of the second mounting ring (3) is fixedly connected to a filter screen (4), and a connecting assembly (5) is provided on the top of the connecting pipe (1).

3. The oil return filter device for engineering machinery according to claim 2, characterized in that: The connecting assembly (5) includes an oil return pipe (501), the oil return pipe (501) is movably connected to the top of the connecting pipe (1), the side surface of the oil return pipe (501) is fixedly connected with a connecting ring 2 (502), the side surface of the connecting ring 2 (502) is adapted to the interior of the mounting ring 1 (205), the side surface of the connecting ring 2 (502) is provided with a thread groove 2 (503), the outer side of the thread groove 2 (503) is threadedly connected to the inner side of the thread groove 1 (206), and the connecting ring 2 (502) is provided with a mounting groove 1 (504).

4. The oil return filter device for engineering machinery according to claim 1, characterized in that: A sealing ring (6) is fixedly connected to the top of the fixed tube (201), and the side surface of the sealing ring (6) is adapted to the interior of the first mounting groove (504). Two sliding grooves (7) are provided on the side surface of the fixed tube (201).

5. The oil return filter device for engineering machinery according to claim 4, characterized in that: The interiors of the two sliding grooves (7) are respectively slidably connected to sliders (8), and the outer sides of the sliders (8) are fixedly connected to the interior of the support ring (202).

6. The oil return filter device for engineering machinery according to claim 5, characterized in that: The side surface of the fixed tube (201) is fixedly connected to a mounting ring three (9), the side surface of the mounting ring three (9) is provided with a threaded groove three (10), and the bottom of the mounting ring three (9) is provided with a mounting groove two (11).

Images