Multifunctional dust suppression vehicle screw air compressor oil circuit filtering device
By using a filter element composed of strong magnetic sheets and nylon gaskets in the air compressor oil circuit, the problem of air compressor wear caused by iron filings is solved, achieving a long service life and low maintenance cost for the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI IRON & STEEL GRP SIJIAYING YANSHAN IRON MINE CO LTD
- Filing Date
- 2025-04-21
- Publication Date
- 2026-05-29
AI Technical Summary
Iron filings falling from the oil tank of the air compressor in the dust suppression vehicle of the open-pit mine blasting cause wear on the air compressor rotor and scavenging blades, resulting in equipment damage and high maintenance costs.
A multifunctional dust suppression vehicle screw air compressor oil circuit filtration device is designed, which uses a filter element composed of strong magnetic sheets and nylon gaskets to adsorb iron filings in the oil circuit and prevent them from entering the air compressor.
It effectively prevents iron filings from entering the air compressor, extends equipment life, reduces maintenance costs, and has a simple structure that is easy to maintain.
Smart Images

Figure CN224292719U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a multifunctional dust suppression vehicle screw air compressor oil circuit filtration device, belonging to the field of automotive parts technology. Background Technology
[0002] The oil tank of the air compressor in the open-pit mine blasting dust suppression vehicle is made of cast iron, and iron filings can fall off during use. These iron filings flow into the air compressor through the oil passages, causing wear on the compressor rotor and scavenging blades. In severe cases, this can result in scratches and damage to the compressor rotor and rotor cavity. Furthermore, the repair cost for this type of air compressor is approximately 115,000 yuan per cycle, making maintenance costs quite high. To prevent iron filings from entering the air compressor and causing damage, and to extend the compressor's service life, it is necessary to design this device. Utility Model Content
[0003] The purpose of this invention is to provide a multifunctional dust suppression vehicle screw air compressor oil circuit filtration device that can adsorb iron filings and welding slag present in the oil circuit, prevent iron filings from entering the air compressor, and solve the problems existing in the background technology.
[0004] The technical solution of this utility model is:
[0005] A multifunctional dust suppression vehicle screw air compressor oil circuit filtration device includes a filter element and a filter element housing. The filter element includes a filter element base, a fully threaded rack, a strong magnetic sheet, and a nylon gasket. The fully threaded rack is vertically fixed on the filter element base, and the fully threaded rack is provided with alternately arranged strong magnetic sheets and nylon gaskets. One end of the filter element housing is provided with an oil inlet connector, and the other end of the filter element housing is provided with an oil outlet connector and a circular flange. The filter element base and the circular flange are connected together by base fixing bolts. The fully threaded rack, strong magnetic sheet, and nylon gasket in the filter element are located inside the filter element housing.
[0006] The alternating strong magnetic plates and nylon washers on the fully threaded rack are pressed onto the fully threaded rack by nuts.
[0007] A base sealing gasket is provided between the filter element base and the circular flange.
[0008] Both the strong magnetic sheet and the nylon gasket are circular, and the filter element housing is cylindrical to match the strong magnetic sheet and the nylon gasket.
[0009] The filter cartridge housing and the circular flange form an integrated structure.
[0010] This invention utilizes the magnetic properties of a magnet to adsorb iron filings and residues in the oil, thereby pre-filtering the lubricating oil of the air compressor. This prevents a large amount of iron filings and residues from entering the fine filter element, clogging or damaging it, and avoids iron filings and residues entering the air compressor and causing damage.
[0011] The advantages of this invention are: simple structure, convenient use, easy maintenance, and low maintenance costs. When performing maintenance after a maintenance cycle, the fixing screws between the filter element base and the filter element housing can be directly disassembled to remove impurities between the strong magnetic plates. After cleaning, it can be directly reinstalled for use. This device effectively prevents iron filings from entering the air compressor from the cast iron oil tank, thus avoiding damage and extending the compressor's service life while saving significant maintenance costs. This device can also be applied to the oil inlet pipelines of power components such as hydraulic systems and fuel systems that use cast iron oil tanks as oil storage containers. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the filter element of this utility model;
[0013] Figure 2 This is a schematic diagram of the filter element housing of this utility model;
[0014] Figure 3 This is a schematic diagram of the base sealing gasket of this utility model;
[0015] Figure 4 This is a schematic diagram of the base fixing bolts of this utility model;
[0016] In the diagram: 1. Filter base; 2. Fully threaded toothed rod; 3. Filter housing; 4. Strong magnetic sheet; 5. Nylon gasket; 6. Compression nut; 7. Oil inlet connector; 8. Base sealing gasket; 9. Base fixing bolt; 10. Circular flange; 11. Oil outlet connector. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings and examples.
[0018] See attached document Figure 1-4 A multifunctional dust suppression vehicle screw air compressor oil circuit filtration device includes a filter element and a filter element housing 3. The filter element includes a filter element base 1, a fully threaded rack 2, a strong magnetic sheet 4, and a nylon gasket 5. The fully threaded rack 2 is vertically fixed on the filter element base 1, and the fully threaded rack 2 is provided with alternating strong magnetic sheets 4 and nylon gaskets 5. One end of the filter element housing 3 is provided with an oil inlet connector 7, and the other end of the filter element housing 3 is provided with an oil outlet connector 11 and a circular flange 10. The filter element base 1 and the circular flange 10 are connected together by base fixing bolts 9. The fully threaded rack 2, strong magnetic sheet 4, and nylon gasket 5 in the filter element are located inside the filter element housing 3.
[0019] In this embodiment, refer to the appendix Figure 1-2 The filtration device includes a filter element base 1, a fully threaded rack 2, a filter element housing 3, a strong magnetic sheet 4, a nylon gasket 5, a compression nut 6, an oil inlet connector 7, a base sealing gasket 8, a base fixing bolt 9, a circular flange 10, and an oil outlet connector 11, wherein:
[0020] The filter housing 3 has an inner diameter of 80mm, an outer diameter of 90mm, and a length of 200mm.
[0021] Flange 10 has a thickness of 10mm, an outer diameter of 140mm, and an inner diameter of 91mm.
[0022] The diameter of the strong magnetic sheet 4 is 50mm, the thickness is 4mm, and the inner diameter is 8mm.
[0023] The nylon gasket 5 has a diameter of 30 mm, a thickness of 5 mm, and an inner diameter of 8 mm.
[0024] The fully threaded toothed rod 2 is 170mm long and 7mm in diameter. The filter element base 1 is 5mm thick and 140mm in diameter.
[0025] The length of the oil inlet connector 7 and the oil outlet connector 11 is 40mm.
[0026] The base sealing gasket 8 is 3mm thick, with an outer diameter of 140mm and an inner diameter of 91mm.
[0027] As shown in the diagram, the filter element is a single unit consisting of a filter element base 1, a fully threaded rack 2, a strong magnetic plate 4, a nylon gasket 5, and a clamping nut 6. The fully threaded rack 2 is vertically welded to the center of the filter element base 1. The inner hole of the strong magnetic plate 4 is fitted onto the fully threaded rack 2. The nylon gasket 5 and the strong magnetic plate 4 are alternately inserted into the fully threaded rack 2. The upper end is fixed with the clamping nut 6.
[0028] The figure shows that the strong magnetic sheet 4 is a circular neodymium iron boron strong magnetic sheet with a diameter of 50 mm and a thickness of 4 mm, and the nylon pad 5 has a diameter of 30 mm and a thickness of 5 mm, so as to ensure that there is enough space between the strong magnetic sheets 4 to achieve the purpose of effectively adsorbing iron filings.
[0029] As shown in the figure, the filter element housing 3 is a cylindrical filter element shell composed of an oil inlet connector 7, an oil outlet connector 11, and a circular flange 10. The oil inlet connector 7 and the oil outlet connector 11 at the upper and lower ends of the filter element housing 3 serve as the oil inlet connector and oil outlet connector of the filtration device.
[0030] The filter element base 1 is fixed to the filter element housing 3 by fixing bolts 9 and base sealing gasket 8, and then installed in the middle of the equipment pipeline through oil inlet connector 7 and oil outlet connector 11 to filter iron filings in the oil circuit of the equipment.
[0031] The figure shows that the circular flange 10 at the bottom of the filter element housing 3 is connected to the filter element base 1 by a sealing gasket 8 and four M10 bolts to ensure the airtightness of the filter element housing 3 and the filter element base 1.
[0032] The diagram shows that the inner diameter of the filter element housing 3 is 80mm. During installation, there is a 15mm gap between the strong magnetic sheet 4 and the inner wall of the filter element housing 3. This ensures that the strong magnetic sheet 4 can effectively adsorb impurities while avoiding the gap being too small to hinder the flow of oil.
[0033] The diagram shows that the inlet and outlet oil connectors 7 and 11 installed at the bottom and top of the filter element housing 3 have full threads with a length of not less than 25mm to enhance the tightening torque when connected to the oil pipe, ensure the sealing of the joint, and prevent oil leakage and pressure loss.
[0034] The usage process of this utility model is as follows:
[0035] The device is installed in the pipeline connecting the oil tank and the air compressor. Air compressor oil enters through the inlet of the device, passes through a strong magnetic plate, and then flows into the air compressor through the outlet. If the oil contains iron filings, the filings will be attracted to the strong magnet and prevent them from entering the air compressor. When performing maintenance and oil changes on the air compressor, the device is disassembled, the iron filings between the magnetic plates are cleaned, and the device is then cleaned before reinstallation and use.
Claims
1. A multi-functional dust suppression vehicle screw air compressor oil circuit filtration device, characterized in that: The filter includes a filter element and a filter element housing (3). The filter element includes a filter element base (1), a fully threaded toothed bar (2), a strong magnetic sheet (4), and a nylon gasket (5). The fully threaded toothed bar (2) is vertically fixed on the filter element base (1). The fully threaded toothed bar (2) is provided with alternating strong magnetic sheets (4) and nylon gaskets (5). One end of the filter element housing (3) is provided with an oil inlet connector (7), and the other end of the filter element housing (3) is provided with an oil outlet connector (11) and a circular flange (10). The filter element base (1) and the circular flange (10) are connected together by base fixing bolts (9). The fully threaded toothed bar (2), the strong magnetic sheet (4), and the nylon gasket (5) in the filter element are located inside the filter element housing (3).
2. The multifunctional dust suppression vehicle screw air compressor oil circuit filtration device according to claim 1, characterized in that: The alternating strong magnetic plates (4) and nylon gaskets (5) on the fully threaded rack (2) are pressed onto the fully threaded rack (2) by nuts (6).
3. The multifunctional dust suppression vehicle screw air compressor oil circuit filtration device according to claim 1, characterized in that: A base sealing gasket (8) is provided between the filter element base (1) and the circular flange (10).
4. The oil circuit filtration device for a multi-functional dust suppression vehicle screw air compressor according to claim 1, characterized in that: The strong magnetic sheet (4) and the nylon pad (5) are both circular, and the filter housing (3) is cylindrical to cooperate with the strong magnetic sheet (4) and the nylon pad (5).
5. The oil circuit filtration device for a multi-functional dust suppression vehicle screw air compressor according to claim 1, characterized in that: The filter housing (3) and the circular flange (10) form an integral structure.