A hydraulic oil impurity collector

Abstract

The present invention relates to a hydraulic oil impurity collector, which comprises an inlet pipe, an impurity interception pipe, an outlet pipe, a solenoid valve and an impurity collection container. The inlet pipe is a three-way pipe, including an inlet, an upper outlet and a lower outlet. The lower outlet is below the upper outlet. Two ends of the impurity interception pipe are respectively connected to the upper outlet and the outlet pipe. An electromagnetic coil is installed on the outer side of the impurity interception pipe. A groove is arranged on the inner wall of the impurity interception pipe. The groove includes a side surface and a blocking surface. The diameter of the side surface gradually decreases from top to bottom. The blocking surface is above the side surface and extends into the pipe at the position where the diameter of the side surface is the largest. The lower outlet, the solenoid valve and the impurity collection container are connected in sequence. The present invention utilizes the strong magnetic force generated after the coil is electrified to adsorb the impurities in the hydraulic oil into the groove on the inner wall of the impurity interception pipe, so as to remove the impurities. The impurity removal effect is good and the operation is convenient. The present invention has the advantages of simple structure, convenient use, low cost and good impurity removal effect.

Description

Technical Field

[0001] The present invention relates to a hydraulic system, in particular to a hydraulic oil impurity collector for removing impurities in a hydraulic circuit. Background Art

[0002] During the operation of a hydraulic system, components such as spool valves and piston rods need to move frequently. During the movement, impurities in the form of metal particles are generated due to friction. These impurities are carried back to the fuel tank by the hydraulic oil during the return oil process, but are not desired to be re-introduced into the hydraulic system during the inlet oil process to prevent damage to the components. Traditional impurity removal methods mainly include filtration and sedimentation. For the filtration method, when the hydraulic oil passes through the filter, the impurities are intercepted by the filter element. Therefore, the filter element needs to be replaced after being used for a period of time, increasing the cost. For the sedimentation method, the fuel tank needs to have a sufficiently large space to keep part of the hydraulic oil in a relatively static state without being disturbed, and the impurities therein naturally sink to the bottom. Therefore, the sedimentation time is long and the effect is not good. In order to improve the impurity removal effect, it is necessary to design a new type of impurity collection device. Summary of the Invention

[0003] In order to solve the above problems existing in the current removal of impurities in the hydraulic system, the present invention proposes a hydraulic oil impurity collector to reduce costs and improve the impurity removal effect and convenience.

[0004] In order to achieve the above object, the present invention provides a hydraulic oil impurity collector, which is characterized by comprising an inlet pipe, an impurity interception pipe, an outlet pipe, a solenoid valve and an impurity collection container. The inlet pipe is a three-way pipe, including an inlet, an upper outlet and a lower outlet. The lower outlet is below the upper outlet. The two ends of the impurity interception pipe are respectively connected to the upper outlet and the outlet pipe. An electromagnetic coil is installed outside the impurity interception pipe. The inner wall of the impurity interception pipe is provided with a groove, which includes a side surface and a blocking surface. The diameter of the side surface gradually decreases from top to bottom. The blocking surface is above the side surface and extends into the pipe at the maximum diameter of the side surface. The lower outlet, the solenoid valve and the impurity collection container are connected in sequence.

[0005] The present invention adsorbs the impurities in the hydraulic oil onto the groove on the inner wall of the impurity interception pipe by setting a groove on the inner wall of the impurity interception pipe and an electromagnetic coil outside the impurity interception pipe, and utilizes the strong magnetic force generated after the coil is energized to achieve impurity removal. The impurity removal effect is good and the operation is convenient. The device has a simple structure, is convenient for installation and disassembly, and each component is convenient for disassembly and cleaning, and can be reused, saving costs. The present invention has a simple structure, is easy to use, has a low cost, and has a good impurity removal effect. Brief Description of the Drawings

[0006] Figure 1 It is a structural diagram of the present invention.

[0007] The present invention will be further described in detail below with reference to the accompanying drawings. Specific embodiments

[0008] Refer to Figure 1 , the hydraulic oil impurity collector includes an inlet pipe 1, an impurity interception pipe 2, an outlet pipe 5, a solenoid valve 3 and an impurity collection container. The inlet pipe 1 is a T-shaped tee pipe, including an inlet 11, an upper outlet 12 and a lower outlet 13. The lower outlet 13 is directly below the upper outlet 12 in the vertical direction. The impurity interception pipe 2 is a pipe with a cylindrical outer shape, and its two ends are respectively threadedly connected to the upper outlet 12 of the inlet pipe 1 and the outlet pipe 5. A plurality of grooves 8 are provided on the inner wall of the impurity interception pipe 2, and the plurality of grooves 8 are arranged in a row along the axial direction of the impurity interception pipe 2. Each groove 8 includes a side surface 81 and a blocking surface 82. The diameter of the side surface 81 gradually decreases from top to bottom along the axial direction of the impurity interception pipe 2. The blocking surface 82 is above the side surface 81 and extends into the impurity interception pipe at the maximum diameter of the side surface 81. In this embodiment, the side surface 81 is a conical surface coaxial with the impurity interception pipe 2, and the blocking surface 81 is a plane perpendicular to the axis of the impurity interception pipe. The side surface and the blocking surface can also be surfaces with other shapes and other arrangement methods. An electromagnetic coil 4 is installed outside the impurity interception pipe 2. The lower outlet 13, the solenoid valve 3 and the impurity collection container are connected in sequence. The solenoid valve 3 is a two-position two-way solenoid valve. When it is energized, the lower outlet 13 is cut off; when it is de-energized, the lower outlet 13 is communicated with the impurity collection container. The impurity collection container includes a container main body 6 and a lower end cover 7. The lower end cover 7 is threadedly connected to the container main body 6 at the bottom of the container main body 6.

[0009] When the system is working, the solenoid valve 3 and the electromagnetic coil 4 are energized at the same time. The hydraulic oil with impurities enters the inlet pipe 1 from the inlet 11. At this time, the solenoid valve 3 cuts off the direction of the lower outlet 13, and the hydraulic oil flows from the upper outlet 12 to the impurity interception pipe 2. The magnetic force generated by the electromagnetic coil 4 adsorbs the impurities in the hydraulic oil into the grooves 8 of the impurity interception pipe 2. The blocking surface 82 of the groove 8 plays a role in preventing the movement of the impurities, so that the impurities stay in the groove, while the hydraulic oil is not affected and continues to flow to the outlet pipe 5. When the system stops, the solenoid valve 3 and the electromagnetic coil 4 are de-energized at the same time. The impurities in the groove 8 are no longer attracted, and the conical side surface of the groove 8 does not support the impurities. The impurities precipitate downward under the action of gravity. At this time, the two interfaces of the solenoid valve 3 are conducted, and the impurities can enter the impurity collector through the solenoid valve 3 all the way. When the system starts to work again, the solenoid valve 3 is energized, isolating the impurity collector from the oil flow, so that the collected impurities no longer enter the hydraulic oil. After using for a period of time, first energize the solenoid valve 3, then unscrew the lower end cover 7, remove the hydraulic oil and impurities in the container main body 6 together, and then continue to use.

[0010] In the present invention, grooves are provided on the inner wall of the impurity interception tube, and an electromagnetic coil is provided outside the impurity interception tube. By using the strong magnetic force generated after the coil is energized, impurities in the hydraulic oil are adsorbed into the grooves on the inner wall of the impurity interception tube. When the work stops, the impurities are collected into the impurity collector by the gravity of the impurities themselves, achieving the removal of impurities. The impurity removal effect is good and the operation is convenient. The device has a simple structure, is convenient for installation and disassembly, and each component is convenient for disassembly and cleaning, and can be reused repeatedly, saving costs. The present invention has a simple structure, is easy to use, has a low cost, and has a good impurity removal effect.

Claims

1. A hydraulic oil impurity collector, characterized in that, It includes an inlet pipe, an impurity interception pipe, an outlet pipe, a solenoid valve and an impurity collection container. The inlet pipe is a T-shaped three-way pipe, including an inlet, an upper outlet and a lower outlet. The lower outlet is directly below the upper outlet in the vertical direction. The two ends of the impurity interception pipe are respectively threadedly connected to the upper outlet and the outlet pipe. An electromagnetic coil is installed on the outer side of the impurity interception pipe. The inner wall of the impurity interception pipe is provided with grooves, which include a side surface and a blocking surface. The diameter of the side surface gradually decreases from top to bottom. The blocking surface is above the side surface and extends into the pipe at the maximum diameter of the side surface. The lower outlet, the solenoid valve and the impurity collection container are connected in sequence. The blocking surface of the groove is a plane perpendicular to the axis of the impurity interception pipe, and the side surface of the groove is a conical surface. The grooves include a plurality of them arranged in a row along the axis of the impurity interception pipe.

2. The hydraulic oil impurity collector according to claim 1, characterized in that, The impurity collection container includes a container body and a lower end cover. The lower end cover is threadedly connected to the container body at the bottom of the container body.

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