Hydraulic circulating system with scrap iron removing function

Abstract

The utility model relates to a hydraulic circulating system with a scrap iron removing function, which belongs to the technical field of hydraulic devices and comprises an oil tank, a hydraulic pump, an oil cylinder, an electromagnetic valve group and an electromagnetic iron remover, the electromagnetic iron remover is arranged on an oil return pipeline of the hydraulic circulating system and provided with a detachable electromagnetic filter element, and the electromagnetic filter element can generate magnetism after being electrified. Iron chips in the hydraulic oil are adsorbed; according to the hydraulic circulation system with the scrap iron removing function, the electromagnetic iron remover is connected with a power source to generate magnetism, scrap iron in hydraulic oil is adsorbed and removed, the scrap iron is prevented from blocking an oil return filter element or entering hydraulic circulation to cause damage to other devices, and the service life of the filter element and the service life of the hydraulic oil are prolonged; the electromagnetic iron removers are installed in parallel, and normal use of the whole system is not affected when the blocked electromagnetic iron removers are cleaned.

Description

Technical Field

[0001] The utility model relates to a hydraulic circulation system with an iron scrap removing function, belonging to the technical field of hydraulic devices. Background Art

[0002] The hydraulic circulation system of the multifunctional overhead crane is an important part of the whole equipment. It provides power to the oil cylinder through the hydraulic circulation system to realize the operations of pole changing, shell breaking, slag scooping, etc. Due to frequent daily use, the oil cylinder piston rod and cylinder body and the internal friction of each valve group are frequent, which will produce a lot of impurities such as iron filings, causing the oil return filter to be blocked. If the iron filings are too small, they will return to the oil tank through the oil return filter and enter the hydraulic circulation, thereby accelerating the damage of the oil cylinder and valve group, causing equipment failure and affecting normal production. Utility Model Content

[0003] In view of the above deficiencies in the prior art, the technical problem to be solved by the utility model is: to provide a hydraulic circulation system with an iron chip removal function, which can remove iron chips during the circulation of hydraulic oil to prevent them from clogging the return oil filter or entering the hydraulic circulation and causing damage to the oil cylinder and valve group.

[0004] The utility model discloses a hydraulic circulation system with an iron chip removing function, comprising an oil tank, a hydraulic pump, an oil cylinder, an electromagnetic valve group and an electromagnetic iron remover. The electromagnetic iron remover is arranged on the oil return pipeline of the hydraulic circulation system. The electromagnetic iron remover is provided with a detachable electromagnetic filter element, which can generate magnetism after being energized to absorb iron chips in the hydraulic oil.

[0005] The technical solution of the utility model is to provide a hydraulic circulation system with an iron chip removal function. When the electromagnetic iron remover is in operation, the electromagnetic filter element generates magnetism to adsorb and remove the iron chips in the hydraulic oil to prevent them from entering the hydraulic circulation and causing damage to other devices.

[0006] Preferably, the electromagnetic iron remover comprises a housing and an electromagnetic filter element, the electromagnetic filter element is inserted into the housing, and flanges for connecting pipelines are provided on the front and rear sides of the housing.

[0007] Furthermore, the electromagnetic filter element is provided with a circular dense mesh iron core, a coil is arranged around the outer periphery of the iron core, and the coil is connected to an external power supply through a cable connector on the top of the electromagnetic filter element; a handle is also provided on the top of the electromagnetic filter element for easy removal.

[0008] Preferably, there are two sets of electromagnetic iron removers, which are connected in parallel in the pipeline, and a ball valve is installed upstream of the electromagnetic iron remover; during normal operation, only one of the ball valves is opened, and the electromagnetic iron remover behind the ball valve is powered. When the permeability of the powered electromagnetic iron remover is reduced due to long-term use, the ball valve upstream of it is closed, and the other electromagnetic iron remover is activated at the same time, and the blocked electromagnetic iron remover is cleaned without affecting the normal use of the hydraulic circulation system.

[0009] Preferably, the hydraulic pump is connected to the oil supply filter, the throttle valve and the inlet of the solenoid valve group in sequence through pipelines, and the outlet of the solenoid valve group is connected to the ball valve upstream of the electromagnetic iron remover; the outlet of the electromagnetic iron remover is connected to the return oil filter through a pipeline.

[0010] The installation pipeline of the hydraulic pump is also provided with a branch pipeline, and an overflow valve is provided on the branch pipeline.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The hydraulic circulation system with iron chip removal function described in the utility model generates magnetism by connecting the electromagnetic iron remover to power, so as to adsorb and remove the iron chips in the hydraulic oil, thereby preventing the iron chips from clogging the return oil filter or entering the hydraulic circulation to cause damage to other devices, and prolonging the service life of the filter element and the hydraulic oil; the electromagnetic iron removers of the utility model are installed in parallel, and cleaning the clogged electromagnetic iron removers does not affect the normal use of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of pipeline connection of the utility model;

[0014] Figure 2 It is a structural diagram of an electromagnetic iron remover;

[0015] Figure 3 It is a three-dimensional diagram of the electromagnetic filter element.

[0016] In the figure: 1. hydraulic pump; 2. oil tank; 3. overflow valve; 4. oil supply filter element; 5. throttle valve; 6. oil cylinder; 7. solenoid valve group; 8. ball valve; 9. electromagnetic iron remover; 91. housing; 92. electromagnetic filter element; 921. iron core; 922. handle; 923. cable connector; 10. return oil filter element. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with specific embodiments.

[0018] However, the description of the present invention is merely an embodiment of structural and even functional description, and the scope of rights of the present invention is not limited by the embodiments described in the text.

[0019] For example, multiple embodiments may have multiple changes and multiple forms, and it should be understood that the scope of rights of the present utility model includes equivalents that can realize the technical idea.

[0020] like Figures 1 to 3 As shown, this embodiment is implemented through the following technical solutions: it includes an oil tank 2, a hydraulic pump 1, an oil cylinder 6, a solenoid valve group 7 and an electromagnetic iron remover 9. The electromagnetic iron remover 9 is arranged on the return oil pipeline of the hydraulic circulation system. The electromagnetic iron remover 9 is provided with a detachable electromagnetic filter element 92, which can generate magnetism after power is turned on to absorb iron filings in the hydraulic oil.

[0021] In this embodiment, the electromagnetic iron remover 9 includes a shell 91 and an electromagnetic filter element 92. The electromagnetic filter element 92 is inserted into the shell 91. Flanges for connecting pipelines are provided on the front and rear sides of the shell 91. The electromagnetic filter element 92 is provided with a circular dense mesh iron core 921. A coil is arranged around the outer periphery of the iron core 921. The coil is connected to an external power supply through a cable connector 923 at the top of the electromagnetic filter element 92. A handle 922 is also provided at the top of the electromagnetic filter element 92 for easy removal.

[0022] There are two sets of electromagnetic iron removers 9, which are connected in parallel in the pipeline. A ball valve 8 is installed upstream of the electromagnetic iron remover 9. The hydraulic pump 1 is connected to the oil supply filter 4, the throttle valve 5 and the inlet of the electromagnetic valve group 7 in sequence through the pipeline. The outlet of the electromagnetic valve group 7 is connected to the ball valve 8 upstream of the electromagnetic iron remover. The outlet of the electromagnetic iron remover 9 is connected to the return oil filter 10 through the pipeline. The installation pipeline of the hydraulic pump 1 is also provided with a branch pipeline, and a relief valve 3 is provided on the branch pipeline. The relief valve 3 is used to control the pressure of the entire system.

[0023] When the utility model works normally, only one of the ball valves is opened, and the electromagnetic iron remover behind the ball valve is powered. After power is supplied, the electromagnetic iron remover generates magnetism to absorb iron filings in the hydraulic oil. When the permeability of the powered electromagnetic iron remover is reduced due to long-term use, the ball valve upstream thereof is closed, and the other electromagnetic iron remover is activated at the same time, and then the blocked electromagnetic iron remover is cleaned. When cleaning the electromagnetic iron remover, the electromagnetic filter element is removed, the power supply is disconnected, and it can be purged with clean water or compressed air.

[0024] Of course, the above contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and any equivalent changes and improvements made by ordinary technicians in the technical field within the essential scope of the present invention shall fall within the scope of the patent coverage of the present invention.

Claims

1. A hydraulic circulation system with iron chip removal function, characterized in that: The invention comprises an oil tank (2), a hydraulic pump (1), an oil cylinder (6), an electromagnetic valve group (7) and an electromagnetic iron remover (9). The electromagnetic iron remover (9) is arranged on the oil return pipeline of the hydraulic circulation system. The electromagnetic iron remover (9) is provided with a detachable electromagnetic filter element (92).

2. The hydraulic circulation system with iron chip removal function according to claim 1, characterized in that: The electromagnetic iron remover (9) comprises a housing (91) and an electromagnetic filter element (92). The electromagnetic filter element (92) is inserted into the housing (91). Flanges for connecting pipelines are provided on the front and rear sides of the housing (91).

3. The hydraulic circulation system with iron chip removal function according to claim 2, characterized in that: The electromagnetic filter element (92) is provided with a circular dense mesh iron core (921), a coil is arranged around the outer periphery of the iron core (921), and the coil is connected to an external power supply through a cable connector (923) at the top of the electromagnetic filter element (92); a handle (922) is also provided at the top of the electromagnetic filter element (92) for easy access.

4. The hydraulic circulation system with iron chip removal function according to claim 1, characterized in that: The number of the electromagnetic iron removers (9) is two sets, and the two sets of electromagnetic iron removers (9) are connected in parallel in the pipeline. A ball valve (8) is installed upstream of the electromagnetic iron removers (9).

5. The hydraulic circulation system with iron chip removal function according to claim 4, characterized in that: The hydraulic pump (1) is connected to the oil supply filter (4), the throttle valve (5) and the inlet of the electromagnetic valve group (7) in sequence through pipelines, and the outlet of the electromagnetic valve group (7) is connected to the ball valve (8) upstream of the electromagnetic iron remover; the outlet of the electromagnetic iron remover (9) is connected to the return oil filter (10) through a pipeline.

6. The hydraulic circulation system with iron chip removal function according to claim 1, characterized in that: The installation pipeline of the hydraulic pump (1) is also provided with a branch pipeline, and a relief valve (3) is provided on the branch pipeline.

Images