Magnetic suspension filtering system of magnetic flaw detector

Abstract

According to the magnetic suspension filtering system of the magnetic flaw detector, an ultraviolet lamp is used for detecting whether ferromagnetic parts are qualified or not, the magnetic suspension filtering system comprises a bed frame, a liquid storage tank, an oil pump and an electrode stand, the oil pump is communicated with the liquid storage tank and conveys magnetic suspension to the ferromagnetic parts installed on the electrode stand through a liquid outlet pipe, and a nozzle is installed at one end of the liquid outlet pipe; the electrode stand is mounted on the top surface of the bed frame through a supporting rod, a mounting hole is formed in the position, corresponding to the electrode stand, of the top surface of the bed frame, a first filtering assembly is mounted in the mounting hole and used for filtering impurities in a magnetic suspension, a second filtering assembly is arranged on the bottom surface of the bed frame and used for filtering the impurities in the magnetic suspension, and the second filtering assembly is used for filtering the impurities in the magnetic suspension. The second filtering assembly is communicated with the liquid storage tank through the liquid return pipe and used for recycling the magnetic suspension, the filtering hole diameter of the first filtering assembly is smaller than that of the second filtering assembly, cost is reduced, and efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of filter equipment, especially relates to a magnetic force flaw detector magnetic suspension liquid filtration system. BACKGROUND

[0002] Magnetic powder detection generally adopts wet method and continuous method. Fluorescent magnetic powder and carrier liquid are mixed and prepared into magnetic suspension liquid according to certain proportion and are stored in a liquid storage tank, when detecting, an oil pump pumps out the stirred magnetic suspension liquid, the magnetic suspension liquid is transported to a nozzle on a bed frame through an oil pipe, and is sprayed on a part clamped by an electrode, the existing technology generally sprays in single non-circulating mode, which causes waste and high cost. CONTENT

[0003] Therefore, the magnetic force flaw detector magnetic suspension liquid filtration system solves the technical problem of high spraying cost caused by the structure or method of the prior art.

[0004] A magnetic force flaw detector magnetic suspension liquid filtration system uses an ultraviolet lamp to detect whether a ferromagnetic part is qualified, and comprises a bed frame, a liquid storage tank, an oil pump and an electrode holder, the electrode holder is used for clamping the ferromagnetic part and is connected with an external power supply, the liquid storage tank stores the magnetic suspension liquid, wherein,

[0005] The oil pump is communicated with the liquid storage tank and transports the magnetic suspension liquid to the ferromagnetic part installed on the electrode holder through a liquid outlet pipe, and a nozzle is installed at one end of the liquid outlet pipe;

[0006] A first filter assembly is installed in a mounting hole arranged at a position corresponding to the electrode holder on the top surface of the bed frame, and is used for filtering impurities in the magnetic suspension liquid, a second filter assembly for filtering impurities in the magnetic suspension liquid is arranged on the bottom surface of the bed frame, the second filter assembly is communicated with the liquid storage tank through a liquid return pipe, and is used for recycling the magnetic suspension liquid, and the filter pore size of the first filter assembly is smaller than that of the second filter assembly.

[0007] Preferably, the bed frame is arranged in a conical structure, and the size of the top surface is greater than that of the bottom surface, so that the deposition of the magnetic suspension liquid flowing into the bed frame is facilitated.

[0008] Preferably, the bed frame is arranged above the liquid storage tank.

[0009] Preferably, the first filter assembly comprises a plurality of layers of filter screens arranged in the mounting hole.

[0010] Preferably, the first filter assembly comprises a first mounting seat, a first filter screen and a planar filter screen, the first mounting seat is arranged in a hollow structure with openings at both ends, and the first mounting seat is detachably mounted on the mounting hole.

[0011] The first filter screen is detachably arranged on the top surface of the first mounting seat by a mounting ring, and the planar filter screen is arranged in the first mounting seat and below the first filter screen.

[0012] Preferably, the first filter assembly further comprises a conical baffle arranged on the outer annular surface of the first mounting seat for enlarging the recovery of the magnetic suspension liquid.

[0013] The central region of the first filter screen is provided with a recovery tank for impurity aggregation, and the recovery tank is hollow and has an open top surface.

[0014] Preferably, the second filter assembly comprises a second mounting seat and a second filter screen, wherein,

[0015] The second mounting seat is open at the top surface and is hollow, the bottom surface of the second mounting seat is communicated with the liquid recovery pipe, and the second filter screen is arranged on the top surface of the second mounting seat.

[0016] Preferably, the bottom surface of the second mounting seat is conical.

[0017] The technical beneficial effects of the utility model are as follows:

[0018] The structure of the utility model recovers the magnetic suspension liquid after spraying, and the first filter assembly and the second filter assembly are used for twice filtration, so that the recovery efficiency of the magnetic suspension liquid is improved, and the filter aperture of the first filter assembly is larger than that of the second filter assembly, so that the liquid supply is prevented from being blocked. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0020] Fig. 1 It is a schematic view of the overall structure;

[0021] Fig. 2 It is a schematic view of the first mounting seat;

[0022] Fig. 3 It is a schematic view of the first filter screen, wherein,

[0023] 1. Bed frame; 2. Liquid storage tank; 3. Oil pump; 4. Electrode holder; 5. Liquid outlet pipe; 6. Liquid return pipe; 71. First mounting base; 72. First filter screen; 73. Flat filter screen; 74. Conical baffle; 81. Second mounting base; 9. Nozzle; 10. Motor frame; 20. Ferromagnetic parts. Detailed Implementation

[0024] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0025] The following specific examples illustrate the implementation of this disclosure. Those skilled in the art can easily understand other advantages and effects of this disclosure from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. This disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this disclosure. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0026] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this disclosure, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using other structures and / or functionalities besides one or more of the aspects set forth herein.

[0027] like Figs. 1 to 3 The magnetic flux density filter system of the magnetic flaw detector shown uses an ultraviolet lamp to inspect the quality of ferromagnetic parts. It includes a bed frame 1, a storage tank 2, an oil pump 3, and an electrode holder 4. The electrode holder 4 is used to clamp the ferromagnetic parts and is connected to an external power supply. The storage tank 2 contains the magnetic flux density filter, and the bed frame is positioned above the storage tank 2.

[0028] The oil pump 3 is connected to the storage tank 2 and delivers magnetic suspension liquid to the ferromagnetic parts mounted on the electrode frame 4 through the liquid outlet pipe 5. A nozzle 9 is installed at one end of the liquid outlet pipe 5.

[0029] Electrode holders 4 are mounted on the top surface of the bed frame 1 via support rods. Mounting holes are provided on the top surface of the bed frame 1 at positions corresponding to the electrode holders 4. A first filter assembly is installed in the mounting holes to filter impurities in the magnetic suspension. A second filter assembly is provided on the bottom surface of the bed frame 1 to filter impurities in the magnetic suspension. The second filter assembly is connected to the storage tank 2 via a return pipe 6 for the recovery of the magnetic suspension. The pore size of the first filter assembly is smaller than that of the second filter assembly to improve the recovery rate of the magnetic suspension and avoid insufficient liquid supply, preventing excessive magnetic suspension from being stored in the bed frame 1.

[0030] As a specific implementation provided in this case, the bed frame 1 is set with a conical structure, and the size of the top surface is larger than the size of the bottom surface, which facilitates the deposition of magnetic suspension liquid flowing into the bed frame 1 and increases the recovery speed.

[0031] As a specific embodiment provided in this case, the first filter assembly includes a first mounting base 71 installed in a mounting hole, and multiple layers of filter screens are disposed within the first mounting base 71, with impurities being manually cleaned periodically. The first filter assembly may also be, for example... Fig. 2 As shown, it includes a first mounting base 71, a first filter screen 72, and a flat filter screen 73. The first mounting base 71 is open at both ends and has a hollow structure. The first mounting base 71 is detachably mounted on the mounting hole. For example, the outer circumference of the first mounting base 71 is provided with a ring lug, the diameter of which is larger than the diameter of the mounting hole. The first filter screen 72 is detachably placed on the top surface of the first mounting base 71 via a mounting ring. The size of the mounting ring of the first filter screen 72 is larger than the diameter of the first mounting base 71. The flat filter screen 73 is installed inside the first mounting base 71 and below the first filter screen 72. Preferably, the number of flat filters 73 is at least one layer, and the flat filter screen 73 is detachably mounted on the first mounting base 71 via a ring. For example, the first mounting base 71 is provided with a baffle to support the ring of the flat filter screen 73. After spraying, if the ferromagnetic parts have defects such as cracks, the defects on the surface of the parts can be easily observed under the irradiation of the ultraviolet lamp, improving the detection efficiency.

[0032] Furthermore, the first filter assembly also includes a conical baffle 74, which is mounted on the outer ring surface of the first mounting base 71 to expand the recovery of the magnetic suspension and prevent splashing of the magnetic suspension. Preferably, as shown in the image... Fig. 3 As shown, a collection box for impurities to gather is set in the central area of ​​the first filter screen 72. The collection box is hollow and has an open structure on the top surface. Since the first filter screen 72 is installed in a detachable manner on the first mounting base 71, the operator can clean it in a timely manner according to the amount of impurities collected in the collection box. The first filter screen 72 is set with a sloping structure.

[0033] As the specific embodiment provided in the present case, the second filter assembly comprises a second mounting seat 81 and a second filter screen, wherein the top surface of the second mounting seat 81 is open and provided in a hollow structure, the bottom surface of the second mounting seat 81 is communicated with the liquid return pipe 6, and the second filter screen is sealingly mounted on the top surface of the second mounting seat 81. Preferably, the bottom surface of the second mounting seat 81 is provided in a tapered structure to increase the recovery rate.

[0034] In the above technical solution, the first filter screen 72 and the planar filter screen 73 are made of stainless steel and have a filter aperture of 200 meshes, and the second filter screen has a filter aperture of 4-10 meshes. The purpose is to avoid the blockage during the liquid supply process and to increase the recovery rate.

[0035] During detection, the original filter screen with the expanded mesh only blocks larger foreign matters, and does not affect the flowability of the magnetic suspension liquid. The first filter assembly filters fast and does not affect the detection of the workpiece. After the oil pump starts to work, the magnetic suspension liquid flows through the first filter assembly, and the filter aperture of the first filter assembly is larger than that of the second filter assembly. The overall filtering effect is intuitive, the filter screen is convenient and fast to replace, and the filter screen can play a certain buffering role when the part accidentally falls from the electrode plate, so as to avoid the part from being knocked and damaged. In addition, the protection effect can be increased by means of the multi-layer stacked filter screen.

[0036] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A magnetic suspension liquid filter system for a magnetic flaw detector for detecting whether a ferromagnetic part is qualified or not using an ultraviolet lamp, characterized in that, It comprises a bed frame, a liquid storage tank, an oil pump and an electrode holder, the electrode holder is used for clamping a ferromagnetic part and is connected with an external power source, the liquid storage tank stores a magnetic suspension liquid therein, wherein, ​ The oil pump is communicated with the liquid storage tank and delivers the magnetic suspension liquid to the ferromagnetic part installed on the electrode holder through a liquid outlet pipe, one end of the liquid outlet pipe is provided with a nozzle; The top surface of the bed frame is provided with the electrode holder through a support rod, the top surface of the bed frame is provided with a mounting hole at a position corresponding to the electrode holder, a first filter assembly is installed in the mounting hole and is used for filtering impurities in the magnetic suspension liquid, the bottom surface of the bed frame is provided with a second filter assembly for filtering impurities in the magnetic suspension liquid, the second filter assembly is communicated with the liquid storage tank through a liquid return pipe and is used for recycling the magnetic suspension liquid, and the filtering pore size of the first filter assembly is smaller than that of the second filter assembly.

2. The magnetic particle inspection magnetic suspension filtration system of claim 1, wherein, The bed frame is provided in a conical structure, and the size of the top surface is larger than that of the bottom surface, so as to facilitate the deposition of the magnetic suspension liquid flowing into the bed frame.

3. The magnetic particle inspection magnetic suspension filtration system of claim 1, wherein, The bed frame is arranged above the liquid storage tank.

4. The magnetic particle inspection magnetic suspension filtration system of claim 1, wherein, The first filter assembly comprises a plurality of layers of filter screens arranged in the mounting hole.

5. The magnetic particle inspection magnetic suspension filtration system of claim 1, wherein, The first filter assembly comprises a first mounting seat, a first filter screen and a planar filter screen, the first mounting seat is provided in a hollow structure with openings at both ends, and the first mounting seat is detachably mounted on the mounting hole; The first filter screen is detachably arranged on the top surface of the first mounting seat through a mounting ring, and the planar filter screen is arranged in the first mounting seat below the first filter screen.

6. The magnetic particle inspection magnetic suspension filtration system of claim 5, wherein, The first filter assembly further comprises a conical baffle arranged on the outer ring surface of the first mounting seat and used for expanding the recycling of the magnetic suspension liquid. A recycling box for gathering impurities is arranged in the central region of the first filter screen, and the recycling box is provided in a hollow structure with an open top surface.

7. The magnetic particle inspection magnetic suspension filtration system of claim 6, wherein, The second filter assembly comprises a second mounting seat and a second filter screen, wherein, The top surface of the second mounting seat is provided in a hollow structure with an opening, the bottom surface of the second mounting seat is communicated with the liquid return pipe, and the second filter screen is arranged on the top surface of the second mounting seat.

8. The magnetic particle inspection magnetic suspension filtration system of claim 7, wherein, The bottom surface of the second mounting seat is provided in a conical structure.

9. The magnetic particle inspection magnetic suspension filtration system of claim 8, wherein, The first filter screen and the planar filter screen are made of stainless steel and have a filtering pore size of 200 meshes.

10. The magnetic particle inspection magnetic suspension filtration system of claim 9, wherein, The filtering pore size of the second filter screen is 4-10 meshes.

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